WO2014116062A1 - 트롤리 - Google Patents
트롤리 Download PDFInfo
- Publication number
- WO2014116062A1 WO2014116062A1 PCT/KR2014/000715 KR2014000715W WO2014116062A1 WO 2014116062 A1 WO2014116062 A1 WO 2014116062A1 KR 2014000715 W KR2014000715 W KR 2014000715W WO 2014116062 A1 WO2014116062 A1 WO 2014116062A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- trolley
- rotating body
- handle
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
- B66C11/06—Underhung trolleys running on monorails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
- B66C11/24—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear with means for locating or sustaining the loads or trolleys in predetermined positions; Hay hoists
- B66C11/26—Abutments; Stop blocks; End stops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/02—Travelling gear incorporated in or fitted to trolleys or cranes for underhung trolleys or cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/18—Travelling gear incorporated in or fitted to trolleys or cranes with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements
Definitions
- the present invention relates to a trolley that can be easily driven or braked.
- the trolley is a device that can travel along rails installed on the ceiling and the like to be suspended. Such trolleys are widely used in various industrial sites, docks, ships and other places where heavy goods need to be transported.
- a conventional trolley has a plurality of wheels and includes a support plate portion traveling along a rail of an H beam or I beam, and a hook portion provided on the support plate portion to suspend an object to be transported.
- an object to be transferred can be suspended by using a hoisting device such as a chain block. And the operator can move it by pushing or dragging the trolley on which the object is suspended.
- Trolleys of this type can be found in the examples of US Pat. No. 4,343,240 (August 10, 1982) and US Pat. No. 4,248,157 (February 3, 1981).
- An embodiment of the present invention is to provide a trolley that can easily drive or brake while removing the chain for driving or braking.
- the present invention provides a trolley that can use a detachable handle unit.
- an object of the present invention is to provide a trolley that eliminates instability due to weight imbalance in the power transmission unit connected to one side of the main body.
- a trolley including an output shaft for transmitting power to the negative portion and a locking unit for transmitting power from the input shaft to the output shaft but not transmitting power from the output shaft to the input shaft can be provided.
- the locking unit may include an active rotating body rotating by the input power, and a driven rotating body rotating the output shaft in combination with the active rotating body so as to rotate in the same direction as the rotation direction of the active rotating body.
- the driven rotor may be provided with a trolley which is rotatable by the rotation of the active rotor but does not rotate by the rotation of the output shaft.
- the locking unit may further include a housing accommodating the driven rotating body therein and a locking member interposed between the housing and the driven rotating body, wherein the locking member is caught only in one rotational direction.
- a trolley may be provided.
- the locking unit may further include a locking release member connected to the active rotating body to move the locking member by the rotation of the active rotating body, wherein the active rotating body and the driven rotating body are rotated.
- the rotational force of the active rotating body is not transmitted to the driven rotating body by the distance of the freed distance by coupling to generate a gap therein, and the unlocking member is caught by the locking member while the active rotating body rotates by the clearance.
- the trolley to which the driven rotating body may be provided when the active rotating body transmits a rotational force to the driven rotating body through the clearance gap.
- the locking unit may further include a stud member formed on any one of the active rotating body and the driven rotating body, and a stud hole formed on the other of the active rotating body and the driven rotating body to accommodate the stud member.
- the inner diameter of the stud hole is greater than the outer diameter of the stud member may be provided with a trolley for the play is generated between the stud hole and the stud member.
- the locking unit may be provided with a trolley further comprising an elastic member for pushing the locking member to the position where the locking occurs.
- two or more locking members are provided to cause pinching in different rotational directions
- two or more locking release members are provided corresponding to the locking member, and the locking member may be rotated in any direction.
- the release member may be provided with a trolley in which the driven rotating body rotates by moving the locking member to a position where pinching does not occur.
- the power transmission unit may further include an input gear connected to the input shaft and an output gear meshing with the input gear and connected to the output shaft, wherein the input shaft and the output shaft are arranged not to be parallel to each other.
- the output gear may be provided with a trolley coupled to switch the direction of the rotation axis to transfer the power input from the lower side of the main body to the main body.
- the apparatus may further include a connection unit connected to the power transmission unit, a handle unit detachably connected to the connection unit, and a power unit input thereto, and the connection unit may include a guide member for guiding the end of the handle unit to be easily inserted.
- a trolley can be provided.
- the handle unit may further include a handle bar including a connection member connected to the connection part and a refraction part bent by an external force.
- a handle bar including a connection member connected to the connection part and a refraction part bent by an external force.
- the rotational force of the handle unit is transmitted to the input shaft.
- Trolleys may be provided.
- the handle unit may further include an elastic member that provides an elastic force to the refraction portion may be provided with a trolley that can maintain the non-refractive state when the external force to bend the refraction portion is removed.
- the handle unit may further include a cover member that can open the refractive portion or cover the refractive portion, when the cover member covers the refractive portion may be provided with a trolley in which the handlebar is not refracted by an external force.
- the handle unit may be provided with a trolley further comprising a cover member fixing part for fixing the cover member in the open state of the refractive portion.
- the handle unit may be provided with a trolley including an elastic support for providing an elastic force in the direction in which the cover member covers the refractive portion.
- the handle unit may further include a connection member connected to the connection part and a handle bar to allow a worker to input a rotational force.
- the handle unit may include a handle that is physically connected to a handle bar that becomes a rotation axis and is spaced apart from the handle bar center axis, a first rotatable cover rotatably surrounding an outer diameter of the handle, and an outer diameter of the handle bar.
- a trolley may be provided that includes a second rotating cover that is rotatable and independently rotatable.
- the main body may include a rolling wheel rolling along an upper surface of the rail and a supporting wheel rolling along a lower surface of the rail, wherein the supporting wheel is positioned to face the rolling wheel based on a longitudinal centerline of the rail.
- a trolley supporting the moment generated by the power transmission unit and the locking unit located on one side of the rail in the longitudinal center line may be provided.
- the main body portion includes a first support plate and a second support plate located on both sides with respect to the longitudinal center line of the rail, the rolling wheel is coupled to the first support plate and the second support plate, respectively,
- the transfer part may be coupled to the first support plate, and the support wheel may be provided with a trolley coupled to the second support plate.
- the support wheel may be provided with a trolley to be coupled to change the position up and down the body portion.
- first support plate and the second support plate located on both sides with respect to the longitudinal center line of the rail, connecting shaft member for connecting through the first and second support plate, and the connecting shaft member
- a first spacer disposed between the tightening nut and the first support plate or the second support plate to maintain a distance between the tightening nut and the first support plate or the second support plate, and the connection shaft member.
- a second spacer disposed between the first support plate and the second support plate to maintain a distance between the first support plate and the second support plate, and the connecting shaft member and the first and second support plates;
- a trolley including a fastening nut for fixing may be provided.
- through holes are formed at both ends of the connecting shaft member, and the slit having one side opened along the outer diameter is formed in the tightening nut, and the tightening nut is formed along the through hole in a state in which the tightening nut is coupled to the connecting shaft member.
- the trolley When a pin is inserted, the trolley may be provided to prevent rotation and separation of the tightening nut by the pin.
- the power transmission unit further comprises a case, the case is coupled to the main body portion, the base portion through which the input shaft passes, the input gear, the output gear and the locking unit to surround the base unit And a cover part coupled to the base part, and the base part is coupled to be movable in the vertical direction with the main body part, and a trolley capable of releasing a coupling state between the input gear and the output gear may be provided.
- the trolley according to the embodiment of the present invention can remove the chain used to input the power for driving or braking, thereby promoting the safety of the operator and providing a beautiful appearance while moving the trolley with less force.
- the braking situation can be prevented from being released arbitrarily, thereby improving safety and improving work efficiency.
- driving or braking can be performed in both directions, thereby improving work efficiency.
- the handle unit includes a refracting portion, so that it is easy to apply rotational force, can be used in various situations, and can reduce the fatigue accumulated in the connection portion of the trolley.
- the trolley can run stably on the rail, and the support wheel supports the lower surface of the rail, thereby reducing the load due to unbalance.
- the support wheel by changing the vertical position of the support wheel, it can be installed on a variety of rails, it is possible to improve the ease of installation.
- FIG. 1 is a perspective view showing a general trolley.
- Figure 2 is a side view showing a state in which the trolley according to the first embodiment of the present invention is installed on the rail.
- FIG 3 is a perspective view showing a driving part of the trolley according to the first embodiment of the present invention.
- FIG. 4 is a side view of FIG. 3.
- FIG. 5 is a perspective view illustrating a driving unit according to another exemplary embodiment of FIG. 3.
- FIG. 6 is a view showing the handle unit of the trolley according to the first embodiment of the present invention, showing the state before refraction.
- FIG. 7 shows a state after refraction of FIG. 6.
- FIG. 8 is a view illustrating a handle unit according to another embodiment of FIG. 6, illustrating a state after refraction.
- FIG. 9 is a side view showing a state in which the trolley according to the second embodiment of the present invention is installed on a rail.
- FIG. 10 is a cross-sectional view taken along the line A-A of FIG. 9 and shows a braking release state.
- FIG. 11 is a perspective view illustrating a brake of a trolley according to a second embodiment of the present invention.
- FIG. 12 is a side view of FIG. 11, illustrating an operation of the brake unit.
- FIG. 13 is a plan view of FIG. 12.
- FIG. 14 is a perspective view showing a braking part of the trolley according to the third embodiment of the present invention.
- FIG. 15 is a plan view of FIG. 14 and illustrates an operation of the brake unit.
- 16 is a side view showing a state in which the trolley according to the fourth embodiment of the present invention is installed on a rail.
- FIG. 17 is a cross-sectional view taken along the line A-A of FIG. 16 and shows a braking release state.
- FIG. 18 is a perspective view illustrating a brake of a trolley according to a fourth embodiment of the present invention.
- FIG. 19 illustrates the braking state of FIG. 17.
- FIG. 20 is a perspective view illustrating a state in which the bevel gear body of FIG. 18 is converted to a worm gear body.
- 21 is a view showing a handle unit of the trolley according to the second embodiment of the present invention, showing a state before refraction.
- FIG. 22 shows the state after the refraction of FIG. 20.
- FIG. 23 is a view illustrating a handle unit according to another embodiment of FIG. 21 and illustrates a state after refraction.
- 24 is a perspective view showing a state before coupling of the connection portion of the trolley according to the second embodiment of the present invention.
- FIG. 25 is an exploded perspective view of FIG. 24.
- Figure 26 shows the coupling of the connecting portion, (a) is a state before the insertion projection is inserted, (b) the insertion projection is inserted into the through groove, (c) the insertion projection in the insertion space (D) is a cross-sectional view showing a state that the insertion protrusion is seated in the seating groove.
- FIG. 27 is a perspective view showing a trolley according to the fifth embodiment of the present invention.
- FIG. 28 is a front view of FIG. 27.
- FIG. 29 is an exploded view of FIG. 28.
- FIG. 30 is a cross-sectional view taken along the line A-A of FIG.
- 31 is an exploded perspective view showing a power transmission unit of the trolley according to the fifth embodiment of the present invention.
- FIG. 32 is a cross-sectional view showing a locking unit of a trolley according to a fifth embodiment of the present invention.
- FIG. 33 is a view illustrating a state in which the locking unit of FIG. 32 rotates.
- 34 is a cutaway view illustrating a connection portion of the trolley according to the fifth embodiment of the present invention.
- 35 is a view showing the handle unit of the trolley according to the fifth embodiment of the present invention, showing a state before refraction.
- FIG. 36 shows the state after the refraction of FIG. 35.
- FIG. 37 is an exploded perspective view showing the configuration of the joint part of FIG.
- 38 is a view showing a handle unit including a rotating cover.
- connection projection 39 is a view showing a method of coupling the connection unit and the handle unit of the trolley according to the fifth embodiment of the present invention, (a) shows the state before the connecting projection is inserted, and (b) the connecting protrusion is inserted into the through groove.
- C) is a cross-sectional view showing a state in which the connecting projection is rotated 90 degrees in the rotation space, (d) the connection projection is seated in the seating groove.
- FIG 40 is a view showing the operation of the trolley according to the fifth embodiment of the present invention.
- FIG. 41 is a view illustrating a handle unit according to another embodiment of FIG. 35 and illustrates a state before refraction.
- FIG. 42 shows the state after the refraction of FIG. 41.
- FIG. 43 is a view illustrating a handle unit according to still another embodiment of FIG. 35 and illustrates a state after refraction.
- 44 is a view showing a handle unit that can be extended in length showing a state in which the length is extended.
- 45 is a view showing a handle unit that can be rotated by the transmission.
- FIG. 46 is a bottom view of FIG. 45.
- the trolley can travel along rails that are installed substantially horizontally on the ceiling (or air), and can be used for hanging and carrying heavy goods at various industrial sites, docks, ships, and the like.
- the rail may be in the form of a beam having an H-type or I-type cross-sectional structure, but the shape is not limited thereto.
- FIG. 1 is a perspective view showing a general trolley 1.
- the trolley 1 is driven on the rail 10 by the operator pulling the chain 2.
- the chain 2 rotates the drive shaft 3, and the wheel 4 connected to the drive shaft 3 rotates so that the trolley 1 travels along the rail 10.
- the operator takes a lot of force to move the trolley (1) by pulling the chain (2).
- the chain 2 should be stretched from the bottom 5 to a height h that a worker can pull and difficult to remove even when the trolley 1 is not used.
- the chain 2 is not only high in fluidity, but also usually made of metal, and its weight is considerable. Therefore, when the ship is shaken by the blue, etc., it may act as a hazard and obstacles to the worker, etc., and occupy the space of the ship to harm the aesthetics.
- the trolley 100 according to the first embodiment of the present invention is intended to solve the above problems by removing the chain 2 for driving or braking.
- Figure 2 is a side view showing a state in which the trolley according to the first embodiment of the present invention is installed on the rail
- Figure 3 is a perspective view showing a drive unit of the trolley according to the first embodiment of the present invention
- Figure 4 is a side view of FIG. to be.
- the trolley 100 is in contact with the rail 10, the wheel 110 (110a, 110b) to make a rolling motion, the body portion 120 for supporting the wheel, and transmitting the driving force to the wheel It includes a drive unit.
- One or more wheels 110 may be provided, and the plurality of wheels 110 may be disposed to be spaced apart from each other by two on each side of the rail 10 for stable driving.
- the first embodiment of the present invention shows a case in which four wheels 110 are employed on both sides, but the number or arrangement of the wheels 110 is not limited thereto.
- the number or arrangement of the wheels 110 may vary when the shape of the rail 10 is changed. That is, one wheel 110 may be mounted to the body 120.
- the body part 120 is disposed on both sides of the rail 10 so as to be spaced apart from each other, and each of the first side plate 121 and the second side plate 122 supporting the two wheels 110. And a connecting portion 123 connecting the first side plate 121 and the second side plate 122 to the lower side of the rail 10.
- the connecting portion 123 may be installed such that both ends thereof penetrate the first side plate 121 and the second side plate 122 in a state in which they are spaced in parallel to each other as shown in the example illustrated in FIG. 3.
- the fastening nut 123b may be fastened to include two support rods 123a fixed to the first side plate 121 and the second side plate 122.
- the connection portion 123 is the first side plate 121 in a manner that adjusts the number of washers or bushes coupled to the outer surface of the support rod 123a between the first side plate 121 and the second side plate 122.
- the distance between the second side plate 122 may be adjusted. Therefore, the distance between the first side plate 121 and the second side plate 122 may be adjusted to correspond to the width of the rail 10 to be applied.
- the plurality of tightening nuts 123b are fastened to the respective support rods 123a outside the first and second side plates 122 so that the support rods 123a may be firmly coupled to the first and second side plates 122
- Hook portion 130 may be provided in an arcuate form to interconnect the middle portions of both support rods (123a).
- the hook groove 131 may be provided at an intermediate portion thereof so that the object can be suspended by hanging.
- the hook groove 131 of the hook portion 130 can be installed by hanging the lifting device 20 such as a chain block.
- the object to be transferred can also be suspended by binding the rope directly to the hook groove 131.
- the connecting portion 123 connecting the first side plate 121 and the second side plate 122 includes two support rods 123a, but the connecting portion 123 is provided.
- the configuration of the present invention is not limited thereto.
- the connecting portion 123 may also be configured by one support rod connecting the lower middle portion of the first side plate 121 and the second side plate 122.
- the connecting portion 123 may be formed of a metal panel or a steel, both ends of which are fixed to the first side plate 121 and the second side plate 122 by welding or bolting.
- the connection part 123 may be a metal structure integrally connected with the first side plate 121 and the second side plate 122. That is, the first side plate 121, the second side plate 122 and the connecting portion 123 may be integrally provided by casting.
- the plurality of wheels 110 are rotatable by shafts 111 (111a and 111b) fixed to the first side plate 121 and the second side plate 122. Can be installed.
- each wheel 110 may be rotatably supported on the outer surface of the shaft by a bearing installed therein for smooth rotation.
- At least one of the one or the plurality of wheels 110 is provided with threads 112 (112a, 112b).
- the drive unit meshes with the thread 112 and is connected to the first gear 113 having the first axial direction X, and the gear unit converting the second axial direction Y driving force to the first axial direction X ( 200). Since the trolley 100 moves from the upper part of the worker, the operator inputs a driving force at the lower part of the body part 120. Accordingly, the second axial direction Y may be a direction perpendicular to the lower side of the trolley 100, and the first axial direction X may be perpendicular to both the second axial direction Y and the longitudinal direction of the rail 10. It may be in one direction.
- the trolley 100 may include a handle unit 400 that provides a second axial direction Y driving force.
- One end of the handle unit 400 is connected to be connected to the gear unit 200 and the other end may be extended downward to the extent that the operator can operate.
- the second unit is connected to the gear unit 200 connected to the handle unit 400.
- An axial Y driving force is provided. Since the gear unit 200 includes a driving direction switching unit (such as a bevel gear body), the driving force in the second axial direction Y may be converted to the first axial direction X.
- the converted first axial direction X driving force rotates the first gear 113 connected to the gear unit 200 and engages with the first gear 113 by the rotation of the first gear 113 ( The wheel 110 with 112 is rotated so that the trolley 100 moves on the rail 10.
- the two wheels 110a and 110b are provided with threads 112a and 112b.
- the first gear 113 may be engaged at the same time.
- the two wheels 110a and 110b are simultaneously rotated by the rotation of the first gear 113 to increase the traction of the rail 10 and the wheel 110.
- the plurality of wheels 110 it is also possible for the plurality of wheels 110 to have a thread 112 and a plurality of first gears 113 to be engaged with the gear unit 200.
- the wheel 110 has a circular ground surface, which is generally in contact with the rail 10, but the thread 112 provided by the wheel 110 may be in direct contact with the rail 10.
- the gear unit 200 is connected to an end of the handle unit 400 and has an input bevel gear 202 having an input shaft 201 having a second axial direction Y and an output having an output shaft 203.
- Bevel gear 204 may be included.
- the second axial direction Y rotational motion input through the input shaft 201 of the input bevel gear 202 is changed through the output shaft 203 of the output bevel gear 204 in the axial direction of the rotational motion (Y->).
- the output shaft 203 may be parallel to the first axial direction X, but otherwise may be converted to the first axial direction X by another gear body (not shown) connected with the output bevel gear 204. have.
- the output bevel gear 204 may be directly connected to the shaft of the first gear 113 to rotate the first gear 113, but may include a reduction unit (not shown) therebetween.
- the reduction unit may further include a gear so as to vary the rotation ratio between the rotation of the input shaft 201 and the rotation of the wheel 110. For example, if the number of revolutions of the wheel 110 is increased compared to the rotation of the input shaft 201, the speed of the trolley 100 may be increased, but when a heavy object is suspended, a large force is required of the worker. On the contrary, when the number of rotations of the wheel 110 is smaller than the rotation of the input shaft 201, the speed of the trolley 100 may be reduced, and the trolley 100 on which the heavy object is suspended may be moved with a small force.
- Gear ratio of the reduction unit may be changed according to the operation of the operator. In this case, it is possible to flexibly drive the trolley 100 according to various situations. That is, when the object is not suspended or the light object is suspended, the number of revolutions of the wheel 110 is increased compared to the rotation of the input shaft 201, and when the heavy object is suspended or when safe driving is required, A gear ratio can be used to reduce the rotation speed. In addition, it is also possible to use a reduction unit in which the gear ratio is changed so that the number of rotation of the wheel 110 is automatically reduced when an object of a certain weight or more is suspended.
- FIG. 5 is a perspective view illustrating a driving unit of the trolley 101 according to another embodiment of the present invention.
- the gear unit 300 may include a worm gear body.
- the gear unit 300 is engaged with the worm gear 302 and the worm gear 302 and the output shaft 303 which is connected to the end of the handle unit 400 and has an input shaft 301 having a second axial direction (Y). It may include a worm wheel 304 having.
- the second axial direction Y rotational motion input through the input shaft 301 of the worm gear 302 is switched through the output shaft 303 of the worm wheel 304 (Y-> X).
- the output shaft 303 may be parallel to the first axial direction X, but may otherwise be switched to the first axial direction X by another gear body (not shown) connected with the worm wheel 304.
- the worm wheel 304 may be directly connected to the shaft of the first gear 113 to rotate the first gear 113, but may include a speed reducer (not shown) therebetween.
- FIGS. 6 and 7 is a view showing the handle unit 400 of the trolley 100 according to the first embodiment of the present invention, showing a state before refraction
- Figure 7 shows a state after the refraction of FIG.
- the handle unit 400 since the handle unit 400 can be connected to the gear unit 200 of the trolley 100 located at a higher position than the user's working position, the handle unit 400 may be provided in the form of a long bar. have. Since the general trolley 1 (see FIG. 1) operates the driving unit 3 (see FIG. 1) using the chain 2 (see FIG. 1), the worker pulls the sagging chain 2. However, this method requires great force and threatens the safety of the worker by the shaking chain.
- the trolley 100 according to the first embodiment of the present invention may be driven using the handle unit 400 while removing the chain 2 (see FIG. 1).
- the chain 2 used for driving the trolley 1 rotates the shaft by the pulling force of the operator, while the handle unit 400 according to the embodiment of the present invention is a gear unit ( Transmits the driving force.
- the handle unit 400 may be connected to the gear unit 200 to be detachable.
- the handle unit 400 is connected to the first connecting portion 410 connected to the end of the input shaft 201, the second connecting portion 420 connected to the first connecting portion 410 so as to be detachable, and the second connecting portion 420.
- It may include a handle bar 430 to be connected.
- the first connection part 410 and the second connection part 420 should be removable but can transmit the rotational force of the handle bar 430 to the input shaft 201. Therefore, the connection parts 410 and 420 may include a groove part including an angled surface and a protrusion part having a shape corresponding thereto and fitted into the groove part. Since the protrusion does not run in the state of being fitted in the groove portion, the rotational force of the second connection portion 420 can be transmitted to the first connection portion 410.
- FIG. 6 a hexagonal-shaped connection protrusion 421 and a connection groove 411 having a shape corresponding thereto are illustrated. Since the connecting protrusion 421 and the connecting groove 411 include a polygonal shape, the rotational force transmitted through the handle unit 400 may be transmitted to the input shaft 201 without loss. Therefore, even if the shape is different, if the rotational force can be transmitted without slipping is included in the embodiment of the present invention.
- the first connecting portion can be not only a groove portion but also a protrusion portion.
- FIG. 6 illustrates that the connection groove 411 is provided in the first connection part 410 and the connection protrusion 421 is provided in the second connection part 420. On the contrary, the groove part may be provided in the second connection part, and the protrusion part may be provided in the first connection part.
- a guide part 412 may be provided at an end of the first connection part 410 to guide the connection protrusion 421 to facilitate connection of the second connection part 420.
- the guide part 412 may include a shape in which an opening widens toward an end portion. Therefore, even if the connection protrusion 421 is inserted only into the opening of the guide part 412 even though the connection protrusion 421 is not perfectly fitted to the connection groove 411, the connection protrusion 421 is guided along the inner surface of the guide part 412 to the connection groove 411. It can be inserted.
- the end of the handle unit 400 may be bent in two stages (see a1, a2) to facilitate the user input the rotational force.
- the input method of the rotary work can provide a driving force more safely and with less force, compared with the case of using a conventional chain.
- the handle unit 400 may include refractive units 431 and 440.
- the refraction includes a portion that is bent or folded by a joint.
- the bent portion 431 in order to avoid confusion, the bent portion that is bent is referred to as the bent portion 431 (see FIG. 8), and the bent portion that is bent by the joint is referred to as the joint portion 440 (see FIG. 6).
- the description of the joint part 440 may also be applied to the bent part 431 unless there is a special reason.
- the turning force is proportional to the length from the input shaft 201 (see FIG. 3; 301, FIG. 5) to the refracted portion. Therefore, when the lengths of the input shafts 201 and 301 are refracted closer, the turning force becomes smaller and the fatigue applied to the input shafts 201 and 301 is reduced.
- the joint portion 440 the operator can operate the trolley 100 by using the handle unit 400 inclined in the progress direction, it is possible to easily move the trolley 100 for hanging a heavy object.
- the joint part 440 of the handle unit 400 allows the handle unit 400 to be used even when there is an obstacle in the traveling direction.
- the joint part 440 may be located closer to the body part 120 than the connecting parts 410 and 420 or may be located far away. Although the connecting parts 410 and 420 are located above the joint part 440 in the trolley 100 of FIG. 2, the joint part 440 may also be located above the connecting parts 410 and 420. Included in the Examples.
- the handle unit 400 of FIG. 6 includes a first connection part 410 connected to the input shaft 201.
- the first connection part 410 may include a polygonal connection groove 411 to which the handle unit 400 is detachably coupled.
- the handle unit 400 is coupled to the first connecting portion 410, the end portion is provided with a second connecting portion 420 including a connecting protrusion 421 provided in a polygonal shape, and the joint portion 440 for refraction A handlebar 430.
- the handle unit 400 may include a bend prevention part that may prevent the joint part 440 from being bent.
- a bend prevention part that may prevent the joint part 440 from being bent.
- the bending prevention part prevents the joint part 440 from being bent in such a connection process, and is provided over the handle bar 430 to cover at least a portion of the periphery of the joint part 440, and the cover member slidable along the handle bar 430 ( 451).
- the joint part 440 may be prevented from being bent because at least a portion of the cover member 451 is wrapped around the joint part 440.
- the cover member 451 when the cover member 451 is moved downward to expose the joint portion 440, the cover member 451 is elastic to give an elastic force to return to the original position It may include a support 452.
- the elastic support 452 supports the lower end of the cover member 451 so that the cover member 451 moved downward is restored to its original position.
- the engaging portion 456 is provided on the lower end of the second connecting portion 420 or the upper end of the handle bar 430, and can support the upper end of the cover member 451 to limit the upward movement of the cover member 451. ) May be provided.
- the elastic support part 452 supports the lower end of the cover member 451, and is provided below the lower support part 453 and the lower support part 453 provided with the locking projection 453a on the upper surface, and the lower support part 453.
- Locking member 453a provided with the fixing member 454b via a spring member 455 having a restoring force between the fixing member and the fixing member 454b so as to be rotatable, and the cover member 451 moving downward. It may include a locking clip 454a fastened to the).
- the locking clip 454a may have a form in which an end is bent at least once so as to be caught by the locking protrusion 453a.
- the user moves the cover member 451 downward so that the joint part 440 is completely exposed and then obliquely. It is possible to manipulate the rotation of the handle unit 400 at an angle. That is, in the state where the joint part 440 is surrounded by the cover member 451, the second connection part 420 and the handle bar 430 of the handle unit 400 are in an upright state, so that the first connection part 410 is easy. Can be connected.
- the cover member 451 is pulled and moved downward to completely expose the joint portion 440 so that the handle unit 400 may be refracted. Let's do it.
- the user can transmit the rotation of the handle unit 400 to the input shaft 201 at an oblique angle to drive.
- the locking clip 454a may be fastened to the locking protrusion 453a of the cover member 451 to be rotated by the handle unit 400 in a fixed state of the pulled cover member 451. .
- the handle unit 400 may be connected to the first connecting portion 410 connected to the gear unit 200 when the trolley 100 needs to be used.
- the input shaft 201 connected to the first connection part 410 is rotated. Therefore, the user can rotate the input shaft 201 in the forward or reverse direction by rotating the handle unit 400 forward or reverse, thereby enabling bidirectional movement by operating the drive unit through these.
- FIG. 8 is a view illustrating a handle unit according to another embodiment of FIG. 6, illustrating a state after refraction.
- the handle unit 400 includes a first connector 410 connected to the input shaft 201.
- the first connection part 410 may include a polygonal connection groove 411 to which the handle unit 400 is detachably coupled.
- the handle unit 400 is coupled to the first connecting portion 410, the second connecting portion 420 including a connecting protrusion 421 having an end portion provided in a polygonal shape, and the second connecting portion 420 and the bent portion for refraction.
- 431 is connected, and includes a handle bar 430 bent more than once.
- the refraction may be defined as a term including bending and bending at an angle and including all cases of bending deformation in an upright state.
- the bent portion 431 may include an elastic member 432 and an elastic cover 433 in which the elastic member 432 is interpolated, as shown in a partially enlarged view of FIG. 8.
- the elastic member 432 may include a material having elastic force, such as spring, rubber, plastic.
- the elastic cover 433 may also include a material having elastic force, such as rubber and plastic.
- the handle unit 400 is rotated even at an oblique angle by using the handle unit 400 provided to be deflectable.
- the handle unit 400 By transmitting to the input shaft 201 it is possible to perform a bidirectional movement.
- FIG. 9 is a side view showing a state in which the trolley according to the second embodiment of the present invention is installed on a rail
- FIG. 10 is a cross-sectional view taken along the line A-A of FIG.
- FIG. 11 is a perspective view illustrating a braking part of the trolley according to the second embodiment of the present invention
- FIG. 12 is a side view of FIG. 11, showing the operation of the braking part
- FIG. 13 is a plan view of FIG. 12.
- the trolley 500 may travel along a rail 10 installed substantially horizontally on a ceiling (or air), and may be used for hanging and transporting heavy materials at various industrial sites, docks, and ships. .
- the rail 10 may be in the form of a beam having an H-type or I-type cross-sectional structure, but the shape is not limited thereto.
- the trolley 500 installed on the rail 10 is disposed in a shape in which portions thereof are respectively accommodated on both sides of the rail 10, and a plurality of wheels 510 and a plurality of wheels 510 which are in rolling motion in contact with the rail 10.
- a braking unit 610 that can limit the movement of the body portion 520 when necessary.
- the plurality of wheels 510 may be disposed in two spaced apart states on both sides of the rail 10 for stable driving.
- the present embodiment shows a case in which four wheels 510 are employed on both sides, but the number or arrangement of the wheels is not limited thereto.
- the number or arrangement of wheels may vary when the shape of the rail 10 is changed. That is, one wheel 510 may be mounted on the body 520.
- the body parts 520 are spaced apart from each other on both sides of the rail 10 and each of the first side plate 521 and the second side plate 522 supporting the two wheels 510. And a connecting portion 523 connecting the first side plate 521 and the second side plate 522 at the lower side of the rail 10.
- the connecting portion 523 is installed such that both ends thereof pass through the first side plate 521 and the second side plate 522 in a state in which they are spaced in parallel to each other, as shown in the example illustrated in FIG. 11, and a tightening nut at each end thereof.
- 523b may include two support rods 523a fixed to the first side plate 521 and the second side plate 522.
- the connection part 523 is configured to adjust the number of washers or bushes 523c coupled to the outer surface of the support rod 523a between the first side plate 521 and the second side plate 522.
- the distance between the 521 and the second side plate 522 may be adjusted. Therefore, the distance between the first side plate 521 and the second side plate 522 may be adjusted to correspond to the width of the rail 10 to be applied.
- the plurality of tightening nuts 523b are fastened to the respective support rods 523a outside the first and second side plates 521 and 522 so that the support rods 523a are firmly coupled to the first and second side plates 521 and 522. Can be.
- the hook portion 530 may be provided in an arc shape to be installed in the form of connecting the middle portions of both support rods 523a to each other.
- the hook groove 531 is provided in the middle portion so that the object can be suspended by hanging. 9 and 10, the hook groove 531 of the hook portion 530 can be installed by hanging the lifting device 20 such as a chain block.
- the object to be transferred can also be suspended by binding the rope directly to the hook groove 531.
- connection portion 523 connecting the first side plate 521 and the second side plate 522 includes two support rods 523a, but the configuration of the connection portion is limited thereto. no.
- the connection part may also be configured by one support rod connecting the lower middle portion of the first side plate 521 and the second side plate 522.
- the connecting portion 523 may be formed of a metal panel or a steel, both ends of which are fixed to the first side plate 521 and the second side plate 522 by welding or bolting.
- connection part may be a metal structure integrally connected with the first side plate 521 and the second side plate 522. That is, the first side plate 521, the second side plate 522, and the connecting portion may be integrally provided by casting.
- a third side plate 524 may be included to fix the brake unit 610 or the gear unit 710.
- the third side plate 524 may be fixed to the first side plate 521 and may have a rectangular parallelepiped shape to include the gear unit 710.
- the braking unit 610 or the gear unit 710 may be fixed regardless of its shape, and may be formed integrally with the first side plate 521.
- the plurality of wheels 510 may be rotatably installed by the shaft 511 fixed to the first side plate 521 and the second side plate 522.
- each wheel 510 may be rotatably supported on the outer surface of the shaft 511 by a bearing 512 installed therein for smooth rotation.
- the brake unit 610 is a device for fixing the wheel 510 moving on the rail 10, and includes a brake plate 611, a brake pad 612, and a display unit 614.
- the braking plate 611 is a plate-shaped member having a constant thickness and the input shaft 711 is coupled to the bottom. Therefore, when the input shaft 711 is rotated by the handle unit 800, the input shaft 711 is rotated around the input shaft 711.
- the braking plate 611 may be coupled to the braking pad 612 on one side.
- the braking pad 612 is fixed to the trolley 500 in contact with the outside of the wheel 510 and may be coupled to one side of the braking plate 611.
- the braking pad 612 may be vertically coupled to an inner end of the braking plate 611 to contact the wheel 510 or may be separated from the wheel 510 according to the rotation of the braking plate 611.
- One side of the braking pad 612 may be fixed to the braking plate 611 and the other side may be in contact with the wheel 510.
- the braking pad 612 may be formed of an elastic body that can be elastically restored.
- the braking pad 612 may be formed of an elastic rubber material.
- the braking pad 612 is not limited to a rubber material, and may be deformed to any other material having elastic force.
- the braking pad 612 may have an indented surface 615 in contact with the wheel 510. Therefore, when the braking pad 612 is in contact with the wheel 510, the wheel 510 may be fixed to the outside of the wheel 510 to be completely in contact with the outside of the wheel 510.
- the brake pad 612 may be formed with a protrusion (not shown) on one side.
- the protrusion is formed at the lower end of the braking pad 612. That is, the braking pad 612 may have a shape in which the lower end portion protrudes from the upper end portion.
- the protrusion is interposed between the wheel 510 and the rail 10 when the brake pad 612 contacts the wheel 510. Therefore, the wheel 510 may be completely fixed by the protrusion, and the protrusion may serve as a wedge to prevent the wheel 510 from being pushed.
- the display unit 614 may be formed at one side of the braking plate 611.
- the display unit 614 is a device that can determine whether the trolley 500 is fixed, and may be formed at one end of the braking plate 611.
- the display unit 614 may be easily identified by a method in which the inner side and the outer side are painted in different colors. Therefore, it is possible to easily determine whether the trolley 500 is fixed even at the bottom of the trolley 500.
- the display unit 614 may protrude to the outside of the body 520 to confirm that the trolley 500 is fixed to the rail 10.
- the display part 614 does not protrude to the outside of the body part 520, so that the trolley 500 is not fixed to the rail 10. .
- the display unit 614 may extend in the longitudinal direction at one end of the braking plate 611.
- the display unit 614 is not limited to extending in the longitudinal direction of the braking plate 611, it may be modified in various structures.
- the display unit 614 may be formed to extend in the vertical direction of the braking plate 611.
- the braking unit 610 is operated by the input shaft 711 as described above.
- a gear unit 710 may be provided between the brake unit 610 and the handle unit 800 for inputting a rotational force for rotating the input shaft 711. Referring to FIG. 12, a process of operating the brake unit 610 through the gear unit 710 will be described.
- the braking unit 610 may acquire the braking effect more effectively when the two wheels 510a and 510b are braked to brake only one wheel 510.
- the gear unit 710 is required to simultaneously operate the braking plates 611a and 611b at different positions.
- the front braking plate 611a is connected through the input shaft 711 and the connecting member 613a so that when the input shaft 711 rotates, the braking plate 611a also rotates at the same time.
- a bevel gear body may be used to simultaneously operate the rear braking plate 611b.
- the first gear 712 rotates together with the rotation shaft 711, and the second gear 713, which engages with the first gear 712 and changes the rotation axis direction, is connected to the third gear 715 by the connecting shaft 714. ).
- the fourth gear 716 may engage the third gear 715 and may change the rotational axis direction, and the first gear 712, the second gear 713, the third gear 715, and the fourth gear ( 716 may be formed of a mutual bevel gear.
- the fourth gear 716 rotates the fourth gear shaft 717, and the fourth gear shaft 717 is connected to the rear braking plate 611b by the connecting member 613b to rotate it.
- the rotation of one input shaft 711 is rotated through the gear unit 710 to rotate the two braking plates 611a and 611b, and a braking pad coupled to both of the braking plates 611a and 611b (
- the trolley 500 is braked by pressing or rubbing 612a and 612b to the wheels 510a and 510b.
- FIG. 14 is a perspective view illustrating a braking part of a trolley according to a third embodiment of the present invention
- FIG. 15 is a plan view of FIG. 14 and illustrates an operation of the braking part.
- the brake unit 620 is a device for fixing the wheel 510 moving on the rail 10, and includes a brake plate 621, a brake pad 622, and a display unit 624.
- the braking plate 621 may have a predetermined thickness and may have a plate shape to press the side surface 511 of the wheel, or may have an L shape to press the edges simultaneously with the side surface 511 of the wheel. 14 shows a braking plate 621 having an L shape.
- the braking plate 621 is connected to the input shaft 711 is positioned to translate in the lateral direction of the wheel 510. Therefore, when the input shaft 711 is rotated by the handle unit 800, the rotational movement of the input shaft 711 is converted into a translational movement by the gear unit 720 is moved.
- the guide member 623 may be provided to allow the braking plate 621 to slide in one direction.
- the guide member 623 may be fixed to the third side plate 524.
- the braking plate 621 may be coupled to the braking pad 622 on one side.
- the braking pad 622 is fixed to the trolley 501 in contact with the outside of the wheel 510, and may be coupled to one side of the braking plate 621.
- the braking pad 622 may be coupled to an inner end of the braking plate 621 to contact the wheel 510 or move away from the wheel 510 according to the sliding movement of the braking plate 621.
- the braking pad 622 may be fixed at one side to the braking plate 621 and the other side may be in contact with the wheel 510.
- the braking pad 622 may be formed of an elastic body that can be elastically restored.
- the brake pad 622 may be formed of an elastic rubber material.
- the braking pad 622 is not limited to a rubber material, and may be deformed to any other material having elastic force.
- the display unit 624 may be formed at one side of the braking plate 621.
- the display unit 624 is a device that can determine whether the trolley 501 is fixed, and may be formed at one end of the braking plate 621.
- the display unit 624 may be easily identified by a method in which the inner side and the outer side are painted in different colors. Therefore, it is easy to determine whether the trolley 501 is fixed even at the bottom of the trolley 501. For example, when the brake pad 622 is in contact with the wheel 510, the display unit 624 does not protrude to the outside of the body part 520, so that the trolley 500 is not fixed to the rail 10. have. On the contrary, when the braking pad 622 is separated from the wheel 510, the display unit 624 protrudes out of the body 520, so that the trolley 501 is fixed to the rail 10.
- the display unit 624 may be formed to extend in the longitudinal direction at one end of the braking plate 621.
- the display unit 624 is not limited to extending in the longitudinal direction of the braking plate 621, it may be modified in various structures.
- the display unit 624 may be formed to extend in the vertical direction of the braking plate 621.
- the braking unit 620 will be described for the translational motion by the rotation of the input shaft (711).
- the input shaft 711 is connected to the pinion gear 723a so that the pinion gear 723a rotates simultaneously with the rotation of the input shaft 711.
- the braking plate 621a is connected to the rack gear 723b which meshes with the pinion gear 723a, and is translated by the rotating pinion gear 723a. At this time, the translational motion is guided in one direction by the guide member 623a.
- the gear unit 720 may be provided between the brake unit 620 and the handle unit 800. Referring to FIG. 14, a process of operating the brake unit 620 through the gear unit 720 will be described.
- the braking unit 620 can obtain the braking effect more effectively when the two wheels 510a and 510b are braked to brake only one wheel 510.
- the gear unit 720 is required to simultaneously operate the braking plates 621a and 221b at different positions.
- the front braking plate 621a is connected through a pinion gear 723a connected to the input shaft 711 and a rack gear 723b engaged with the input shaft 711 so that the braking plate 621a also translates simultaneously when the input shaft 711 rotates. do.
- a bevel gear body may be used to simultaneously operate the rear braking plate 621b.
- the first gear 722 rotates together with the rotation shaft 711, and the second gear 724, which engages with the first gear 722 and changes the rotation axis direction, is connected to the third gear 726 by the connecting shaft 725. ).
- the fourth gear 727 may rotate in the rotational axis direction while meshing with the third gear 726, and the first gear 722, the second gear 724, the third gear 726 and the fourth gear ( 727 may be formed of a mutual bevel gear.
- the fourth gear 727 rotates the fourth gear shaft 729, and the fourth gear shaft 729 is connected to the pinion gear 728a so as to rotate the pinion gear 728a and engage with the rack gear (
- the braking plate 621b coupled to the 728b translates together with the rack gear 728b to pressurize or release the wheel 510b.
- the translation member may be guided in one direction by the guide member 623b.
- the rotation of one input shaft 711 is rotated through the gear unit 720 to rotate the two braking plates 621a and 221b, and a braking pad coupled to both of the braking plates 621a and 221b.
- the trolley 501 is braked by pressing or rubbing the 622a and 222b to the wheels 510a and 510b.
- FIG. 16 is a side view illustrating a state in which the trolley 502 according to the fourth embodiment of the present invention is installed on a rail
- FIG. 17 is a cross-sectional view taken along the line A-A of FIG. 18 is a perspective view showing a braking part of the trolley according to the fourth embodiment of the present invention
- FIG. 19 shows the braking state of FIG.
- the braking unit 630 is provided with a screw shaft 631 rotatably installed at a lower side of the body 520, and the rail is lifted and lowered by a rotation operation of the screw shaft 631. And a pressurizing unit for implementing braking in a manner of pressing or releasing pressurization of the bottom of the 10.
- the screw shaft 631 may be disposed in parallel with the support rod 523a between the two support rods 523a connecting the first side plate 521 and the second side plate 522. Can be.
- the screw shaft 631 is rotatably supported by the first and second side plates 521 and 522 in such a manner that both ends thereof pass through the second side plate 521 and the second side plate 522. 631a) and the right-hand threaded part 631b.
- the pressurizing unit includes a first moving member 632, a second moving member 633, and a rail 10 located above the screw shaft 631, respectively, coupled to the left screw portion 631a and the right screw portion 631b of the screw shaft 631.
- the first connection link 635 and the other side of the pressing member 634, which are disposed below the pressing member 634, one side of the pressing member 634, and the first moving member 632, are arranged in a substantially flat plate shape.
- a second connection link 636 connecting the second moving member 633.
- Both ends of the first connection link 635 are rotatably coupled to the pressing member 634 and the first moving member 632, respectively.
- the second connecting link 636 connects the second moving member 633 and the pressing member 634 in the same manner.
- the pressing member 634 may be attached to the friction pad 544a on the upper surface in contact with the rail 10 to increase the friction force.
- the friction pad 544a may be provided by a material having a large friction force such as rubber, silicon, and leather.
- the pressing unit may include a guide bar 637 for guiding the movement while limiting the rotation of the first moving member 632 and the second moving member 633, as shown in FIG.
- the guide bar 637 may be disposed in parallel with the screw shaft 631 in contact with the first and second moving members 632 and 233, and both ends of the guide bar 637 and the second side plate 521 and the second side plate. 522 may be fixed.
- the braking part 630 moves the first and second moving members 632 and 633 in opposite directions by the rotation of the screw shaft 631, thereby providing the first and second connection links 635 and 236.
- Lifting of the pressing member 634 can be realized by pushing up or pulling down the pressing member 634.
- the pressing member 634 may implement braking by pressing the bottom surface of the rail 10 by an upward movement as in the example of FIG. 19, and release the braking by being spaced apart from the bottom surface of the rail 10 as in the example of FIG. 17.
- the trolley 502 of the fourth embodiment rotates the screw shaft 631 by manual operation at a position spaced apart from the body 520 installed on the rail 10 by the operator.
- the handle unit 800 and the gear unit 730 is provided on the body portion 520 to transmit the rotation of the handle unit 800 to the screw shaft 631.
- the gear unit 730 includes a driven bevel gear 731 and a driven bevel gear 731 coupled to one end of a screw shaft 631 extending outward of the second side plate 521. And a driving bevel gear 732 which is meshed with and driven by the input shaft 711.
- the body part 520 is coupled to the second side plate 521 in a state in which the driven bevel gear 731 and the driving bevel gear 732 are accommodated, and the input shaft 711, which is an axis of the driving bevel gear 732, can rotate. It may include a fourth side plate 525 to be supported.
- Gear unit according to an embodiment of the present invention is not limited to the bevel gear body.
- 20 is a perspective view showing a state in which the bevel gear body is converted to a worm gear body.
- the gear unit 740 of FIG. 20 is a worm gear 742 provided on an input shaft 711 for transmitting rotational force by the handle unit 800, a worm wheel engaged with the worm gear 742 and coupled to the screw shaft 641. 741).
- the body portion 520 includes a fourth side plate 525 rotatably supporting the worm gear 742 and the worm wheel 741 while being coupled to the first side plate 521.
- the gear unit 740 of FIG. 20 when the worm gear 742 is rotated by the handle unit 800 while the handle unit 800 is connected, the worm wheel 741 rotates to rotate the screw shaft 641 in the forward or reverse direction. Can be rotated, and braking or braking can be realized by the operation of the screw shaft 641.
- the gear unit 740 prevents the rotation of the screw shaft 641 from being reversed (to the operation handle), so that the braking state or the braking release state can be stably maintained.
- FIG. 21 is a view showing a handle unit of the trolley according to the second embodiment of the present invention, showing a state before refraction, and FIG. 22 shows a state after refraction in FIG.
- the handle unit 800 should be able to be connected to the gear unit 710 of the trolley 500 which is located higher than the user's working position, so that the handle unit 800 may be provided in the form of a long bar. have. Since the conventional trolley operated the braking unit using a chain, the worker pulled the stretched chain while working. However, this method requires great force and threatens the safety of the worker by the shaking chain.
- the trolley 500 according to the embodiment of the present invention has an advantage of operating the brake unit 610 while deleting the chain. The chain rotates the shaft by the pulling force of the operator, while the handle unit 800 transmits the input work to the gear unit 710 by the operator rotates the shaft.
- the end of the handle unit 800 can be bent in two stages (a1, a2) to facilitate the user input the rotational force.
- the input method of such a rotary date can provide an input date more safely and easily with less force than when using a conventional chain.
- the longer the length of the connecting portion 835 for connecting the handle 834 and the handlebar 830 can produce a greater force, the shorter it is possible to rotate faster.
- the handle unit 800 is basically for operating the braking unit 610, but may be used when the worker moves the trolley 500. That is, the worker may move the trolley 500 on the rail 10 by providing a force to grip and pull or push the handle unit 800.
- the handle unit 800 is connected to the input shaft 711 of the gear unit 710, when the operator applies a force to the handle unit 800 for the movement of the trolley 500, the handle unit 800 of the long bar shape is Torque is applied to the input shaft 711. This torque may cause damage to the input shaft 711 as fatigue accumulates.
- the handle unit 800 may include the refraction parts 831 and 840.
- the refraction includes a portion that is bent or folded by a joint.
- the bent portion that is bent is referred to as the bent portion 831 (see FIG. 23), and the bend portion that is bent by the joint will be denoted by the joint portion 840 (see FIG. 21).
- the description of the joint part 840 may be applied to the bent part 831 unless there is a special reason.
- the turning force is proportional to the length from the input shaft 711 (see FIG. 20) to the refracted portion. Therefore, when the length of the input shaft 711 and the refracted portion is closer, the turning force is reduced and the fatigue applied to the input shaft 711 is reduced.
- the joint portion 840 the operator can pull the trolley 500 by using the handle unit 800 inclined by bending in the advancing direction, so that the trolley 500 hanging a heavy object can be easily moved.
- the joint 840 of the handle unit 800 may be used even when there is an obstacle in the traveling direction.
- the handle unit 800 may be provided with the connecting portions 810 and 820 to separate the gear unit 710 when the trolley 500 is not in operation. Therefore, it is possible to temporarily remove the handle unit 800 that can act as a risk factor for the worker's movement, etc., and can contribute to the beautiful appearance inside the vessel.
- trolleys were driven by chains or operated by brakes, so chains had to hang out of reach of the operator at all times. These chains were shaken by the fluctuations of the ship, acting as a danger to the workers, and could not be removed even if the trolley was not used for a long time, thus damaging the aesthetics and remaining a potential danger.
- the joint part 840 may be located closer to the body part 520 than the connecting parts 810 and 820, or may be located far away.
- the connecting parts 810 and 820 are located above the joint part 840, but the embodiments are included in the embodiment of the present invention.
- the handle unit 800 of FIG. 21 includes a first connector 810 connected to the input shaft 711.
- the handle unit 800 includes a second connector 820 coupled to the first connector 810, and a handle bar 830 having a joint 840 for refraction.
- a guide part 813 may be provided to guide the second connector 820 to the first connector 810.
- the guide part 813 may be provided at an end of the first connection part 810, and may include a shape in which the opening is widened toward the end.
- the handle unit 800 may include a bend prevention part that may prevent the joint part 840 from being bent.
- a bend prevention part that may prevent the joint part 840 from being bent.
- the bending prevention part prevents the joint part 840 from being bent in such a connection process, and is provided over the handle bar 830 to cover at least a portion of the periphery of the joint part 840, and the cover member slidable along the handle bar 830 ( 851).
- the joint part 840 may be prevented from being bent because the cover member 851 is at least partially wrapped around the joint part 840.
- the cover member 851 when the cover member 851 is moved downward to expose the joint portion 840, the cover member 851 elasticity to give an elastic force to return to the original position It may include a support 852.
- the elastic support 852 supports the lower end of the cover member 851 so that the cover member 851 moved downward is restored to its original position.
- the engaging portion 856 is provided on the lower end of the second connecting portion 820 or the upper end of the handle bar 830, and can support the upper end of the cover member 851 to limit the upper movement of the cover member 851. ) May be provided.
- the elastic support portion 852 supports the lower end of the cover member 851, the lower support portion 853 is provided with a locking projection 853a on the upper surface, and is provided below the lower support portion 853, the lower support portion 853
- a locking member 853a is provided to be rotatable in the fixing member 854b and the fixing member 854b via a spring member 855 having a restoring force between the locking member 853a and the cover member 851 in a downward direction. It may include a locking clip 854a fastened to the).
- the locking clip 854a may have a form in which an end is bent at least once so as to be caught by the locking protrusion 853a.
- the user moves the cover member 851 downward so that the joint part 840 is completely exposed and then obliquely.
- the rotation of the handle unit 800 can be manipulated at an angle. That is, in the state in which the joint part 840 is surrounded by the cover member 851, the second connection part 820 and the handle bar 830 of the handle unit 800 are in an upright state, so that the first connection part 810 is easy. Can be connected.
- the cover member 851 is pulled and moved downward to completely expose the joint portion 840 so that the handle unit 800 can be refracted.
- the user can transmit the rotation of the handle unit 800 to the input shaft 711 at an oblique angle to perform braking and releasing braking.
- the locking clip 854a may be coupled to the locking protrusion 853a of the cover member 851 so that the rotation operation by the handle unit 800 may be performed in a state where the pulled cover member 851 is fixed. .
- the handle unit 800 may be connected to the first connecting portion 810 connected to the gear unit 710 when the trolley is required to be used.
- the input shaft 711 connected to the first connection part 810 is rotated. Therefore, the user can rotate the input shaft 711 in the forward or reverse direction by rotating the handle unit 800 in the forward or reverse direction, through which the braking unit can be operated to implement braking or braking.
- FIG. 23 is a view illustrating a handle unit according to another embodiment of FIG. 21 and illustrates a state after refraction.
- the handle unit 800 includes a first connector 810 connected to the input shaft 711.
- the handle unit 800 is connected to the second connecting portion 820 coupled to the first connecting portion 810, the second connecting portion 820 and the bent portion 831, and includes a handle bar 830 that is bent at least once. do.
- the refraction may be defined as a term including bending and bending at an angle and including all cases of bending deformation in an upright state.
- the bent portion 831 may include an elastic member 832 and an elastic cover 833 in which the elastic member 832 is interpolated, as shown in a partially enlarged view of FIG. 23.
- the elastic member 832 may include a material having elastic force, such as a spring, rubber, plastic.
- the elastic cover 833 may also include a material having elastic force, such as rubber and plastic.
- the handle unit 800 is rotated even at an oblique angle by using the handle unit 800 provided to be deflectable. By transmitting to the input shaft 711 it is possible to perform braking and braking release.
- the hoisting device 20 such as a chain block, may be installed on the hook part 530 of the trolley 500, and the hoisting device 20 may be installed.
- the user can move the trolley 500 in a desired direction by pushing or dragging a heavy object or by pushing or pulling a handle unit 800.
- the braking of the brake 610 is released.
- the movement of the body portion 520 may be limited by using the brake 610. That is, the user rotates the braking plate 611 by connecting the handle unit 800 to the first connecting portion 810 of the gear unit 710 and then rotating the input shaft 711 with the handle unit 800 as shown in FIG. 13.
- the braking pad 612 may be compressed on the wheel 510, and thus the braking of the trolley 500 may be performed.
- the braking pad 612 attached to one surface of the braking plate 611 compresses the wheel 51 (trolley according to the second or third embodiment, see FIGS. 9 to 15), Since the friction pad 634a attached to the upper surface of the pressing member 634 compresses the bottom of the rail 10 (trolley according to the fourth embodiment, see FIGS. 16 to 19), a stable braking state can be maintained.
- the user can store the handle unit 800 separately from the first connecting portion 810 of the gear unit 710 after braking, the structure around the trolley 500 can be simply maintained and provide a beautiful appearance. .
- the braking device 540 can be reversed by connecting the handle unit 800 to the first connection part 810 of the gear unit 710 to reverse the braking device 540. .
- FIGS. 24 to 26 the connection part 801 of the handle unit 800 will be described in detail.
- 24 is a perspective view illustrating a state before coupling of a connection portion of a trolley according to a second embodiment of the present invention
- FIG. 25 is an exploded perspective view of FIG. 24.
- the handle unit 800 may include a first connecting portion 810 connected to the gear unit 710 and a second connecting portion 820 connected to the first connecting portion 810.
- the second connection part 820 is connected to the handle bar 830 that provides the rotational force by the operator, and the first connection part 810 and the second connection part 820 are detachable and fitted to transmit the rotational force, so that the handlebar ( The rotational force of 830 is transmitted to the gear unit 710 through the first connecting portion 810.
- the first connecting portion 810 and the second connecting portion 820 may be connected by a combination of the groove portion and the corresponding protrusion portion, and may include a groove portion and a protrusion portion formed with an angle to transfer the rotational force without loss.
- the first connecting portion 810 of the handle unit 800 is a connecting member 811 connected to the gear unit 710, the connecting member 811 is connected to the second connecting portion 820 It includes an insertion member 812 is inserted.
- the connecting member 811 is connected to the gear unit 710, but unlike this, the connecting member 811 is connected to the braking part so that the rotational force of the handle unit is not directly passed through the gear unit 710 to the braking part. You can also pass it.
- An insertion protrusion 821 is provided at an end of the second connection portion 820, and a through groove 812a corresponding to the shape of the insertion protrusion 821 is formed at an end of the insertion member 812.
- the insertion protrusion 821 may be inserted through the through groove 812a and then rotated in the insertion space 812b provided in the insertion member 812 to prevent the insertion protrusion 821 from being separated from the through groove 812a.
- the shape of the insertion protrusion 821 and the through groove 812a includes a straight bar shape as shown in FIG. 24, and the insertion protrusion of the present invention is provided with a function of preventing separation after insertion even if the insertion protrusion 821 and the through groove 812a are different from each other. 821 and through holes 812a.
- the insertion space 812b is sufficient to allow the insertion protrusion 821 to be rotated by a predetermined angle, and the insertion space 821 is not limited to that provided so that the insertion protrusion 821 can rotate.
- the handle unit 800 Since the handle unit 800 must transmit the rotational force of the second connecting portion 820 to the first connecting portion 810, it should be able to prevent the insertion protrusion 821 from rotating inside the insertion space 812b.
- it may include a mounting groove 812c which is formed to be offset from the through groove 812a.
- the shape of the mounting groove 812c may be similar to that of the through groove 812a, and unlike the through groove 812a, the mounting groove 812c may have a bottom surface to prevent the insertion protrusion 821 from being separated.
- the shape of the seating groove 812c is not limited to a fine shape as shown in FIG.
- the mounting groove 812c may include a guide surface (not shown) to help the insertion protrusion 821 seat.
- the guide surface may be formed in a gradient in the direction of the seating groove 812c, and the insertion protrusion 821 may be seated in the seating groove 812c even though the insertion protrusion 821 is not rotated to fit snugly in the seating groove 812c.
- the insertion member 812 applies a force in the direction of the through groove 812a to the insertion protrusion 821 so that the insertion protrusion 821 can transmit the rotational force of the second connection portion 820 to the first connection portion 810 without loss.
- It may include an elastic support (812d).
- the elastic support part 812d includes a support surface 812e and an elastic member 812f, and presses the insertion protrusion 821 in the rotated state after the insertion protrusion 821 is inserted through the second connection part 820.
- the rotational force is input, the insertion protrusion 821 is prevented from rotating so that the rotational force can be transmitted to the first connection portion 810 without loss.
- the elastic support 812d may serve to prevent the insertion protrusion 821 from being separated from the mounting groove 812c, thereby more effectively preventing the loss of rotational force.
- the shape of the support surface 812e and the shape of the elastic member 812f are not limited to the shape shown in FIG.
- Figure 26 shows the coupling of the connecting portion, (a) is a state before the insertion projection is inserted, (b) the insertion projection is inserted into the through groove, (c) the insertion projection in the insertion space (D) is a cross-sectional view showing a state that the insertion protrusion is seated in the seating groove.
- the insertion protrusion 821 provided at the end of the second connecting portion 820 is provided at the end of the first connection portion 810 and is inserted into the through groove 812a corresponding to the shape of the insertion protrusion 821.
- the insertion protrusion 821 meets the elastic support portion 812d while passing through the through groove 812a, and lifts the support surface 812e by applying a force to overcome the elastic force of the elastic member 812f. After the insertion protrusion 821 passes through the through groove 812a completely, the insertion protrusion 821 is rotated by 90 degrees to be seated in the seating groove 812c.
- the elastic support portion 812d presses the insertion protrusion 821 in the direction of the through groove 812a so that the insertion protrusion 821 is separated from the seating groove 812c. It can be prevented.
- the rotational force applied to the second connecting portion 820 can be transmitted to the first connecting portion 810 without loss, and the operator applies a force upward until the insertion protrusion 821 lifts the elastic support portion 812d.
- the second connector 820 is not separated from the first connector 810 to enable stable rotation.
- FIG. 27 is a perspective view illustrating a trolley 900 according to a fifth embodiment of the present invention
- FIG. 28 is a front view of FIG. 27
- FIG. 29 is an exploded view of FIG. 28
- FIG. 30 is a cross-sectional view taken along line A-A of FIG. 28.
- the trolley 900 includes a main body portion 910 moving along the rail 10, a wheel connected to the main body portion 910 and rolling along the rail 10, and a main body. It may include a power transmission unit 940 for transmitting power for driving or braking of the unit 910.
- the main body 910 connects the first supporting plate 911 and the second supporting plate 912 and the connecting portion 914 connecting the two supporting plates 911 and 912 located at both sides with respect to the traveling direction of the rail 10. It may include.
- the first support plate 911 and the second support plate 912 may be disposed in parallel with the rail 10 therebetween.
- the connecting portion 914 may be installed such that both ends of the two connecting portions 914 spaced in parallel with each other may pass through the first supporting plate 911 and the second supporting plate 912, respectively, as shown in the example illustrated in FIG. 27.
- the fastening nut 914a is fastened to both ends thereof, and thus may include two support rods 914b fixed to the first support plate 911 and the second support plate 912.
- connection part 914 may prevent rotational degrees of freedom of the support plates 911 and 912 by connecting two connection parts 914 arranged in parallel with the support plates 911 and 912.
- connection part 914 is formed of the first support plate 911 and the first support plate 911 and the second support plate 912 by adjusting the number of washers or bushes coupled to the outer surface of the support rod 914b.
- the distance between the two support plates 912 can be adjusted. Therefore, the distance between the first support plate 911 and the second support plate 912 may be adjusted to correspond to the width of the rail 10 to be applied.
- the plurality of tightening nuts 914a are fastened to the respective support rods 914b outside the first and second support plates 911 and 912 so that the support rods 914b are firmly coupled to the first and second support plates 911 and 912. You can do that.
- the hook portion 915 may be provided in an arcuate shape so as to interconnect the middle portions of both supporting rods 914b.
- a hook groove (not shown) may be provided at an intermediate portion thereof so that the object can be suspended by hanging.
- Hook portion 915 can be installed by hanging a hoisting device, such as a chain block.
- the object to be transferred can also be suspended by binding the rope directly to the hook groove.
- the connecting portion 914 connecting the first supporting plate 911 and the second supporting plate 912 includes two supporting rods 914b, but the configuration of the connecting portion 914 is limited thereto. It is not.
- the connection part 914 may also be configured by one support rod 914b connecting the lower middle portion of the first support plate 911 and the second support plate 912.
- the connecting portion 914 may be formed of a metal panel or a steel, both ends of which are fixed to the first support plate 911 and the second support plate 912 by welding or bolting.
- the connection part 914 may be a metal structure integrally connected with the first support plate 911 and the second support plate 912. That is, the first support plate 911, the second support plate 912, and the connecting portion 914 may be integrally provided by casting.
- connection unit 914 will be described in detail with reference to FIGS. 28 and 29.
- connection part 914 includes a support rod 914b connecting the two support plates 911 and 912 and a tightening nut 914a fastened to both ends of the support rod 914b to fix the two support plates 911 and 912. can do.
- the support rod 914b is coupled to the connecting shaft member 914b-1 penetrating the two support plates 911 and 912 and the outer diameter of the connecting shaft member 914b-1 to maintain a constant distance. (914b-2, 914b-3).
- the first and second support plates 911 and 912 extend to one side to support the connecting shaft member 914b-1, and the shaft supporting portion 911a having a through hole through which the connecting shaft member 914b-1 penetrates. It may include. Although the shaft support portion 911a extends between the two support plates 911 and 912 in the drawing, alternatively, the support plates 911 and 912 may be protruded to the outside or formed on both surfaces thereof.
- the support rod 914b serves to support a large weight object in addition to fixing the two support plates 911 and 912. At this time, as the weight of the object becomes heavier, the force applied to the support rod 914b increases, and as a result, the force applied to the two support plates 911 and 912 also increases.
- the shaft support portion 911a formed on the support plates 911 and 912 increases the area receiving the force applied by the connecting shaft member 914b-1 to distribute the force. Therefore, it is possible to hang a heavier weight object to the hook portion 915, it is possible to increase the durability of the trolley 900.
- the spacers 914b2 and 914b3 are coupled to the outer diameter of the connecting shaft member 914b-1 protruding to the outer side surfaces of the support plates 911 and 912, and the distance between the support plates 911. 912 and the tightening nut 914a is constant. Between the first spacer 914b-2 and the outer diameter of the connecting shaft member 914b-1 projecting to the inner side surfaces of the support plates 911 and 912, and between the shaft support portions 911a of the both support plates 911 and 912. It may include a second spacer (914b-3) to make the distance of the constant.
- connection part 914 may be provided longer than the distance between the two support plates (911, 912). This is because not only can be applied to the main body portion 910 of various widths, because the distance from the rotation center is longer, the rotational inertia is increased, so that it can move more stably. Therefore, a space is generated between the tightening nut 914a and the support plates 911 and 912, and the space is filled by the first spacer 914b-2.
- a screw thread to which the hook part 915 may be fastened may be provided at an outer diameter of the second spacer 914b-3.
- the hook part 915 and the second spacer 914b-3 mutually interfere with the stability of the trolley 900 when the hook part 915 is not fixed to one point of the second spacer 914b-3, thereby inhibiting the stability of the trolley 900.
- the screw can be combined to prevent slippage.
- the second spacer 914b-3 may have an outer diameter of the connecting shaft member 914b-1 so that the load of the object supported by the hooking part 915 can distribute the force transmitted to the connecting shaft member 914b-1. Can cover a portion.
- the support rod 914b may also be applied when the distance between the two support plates 911 and 912 is changed.
- the spacers 914b-2 and 914b-3 may be manufactured in various lengths.
- spacers 914b-2 and 914b-3 manufactured in various sizes.
- the spacers 914b-2 and 914b-3 corresponding to the changed distances may be inserted using the same. Therefore, it is possible to apply the trolley 900 regardless of the change in the size and shape of the various rails.
- the pin member 914c may be inserted into a hole penetrating through the connecting shaft member 914b-1 to prevent the tightening nut 914a from being released from the connecting shaft member 914b-1.
- a groove 914a-1 into which the pin member 914c may be inserted is formed at one side of the tightening nut 914a to prevent the tightening nut 914a from rotating while the pin member 914c is coupled. Can be.
- the body portion 910 may further include a flange portion 913 to protect the wheel.
- the flange portion 913 is provided at both sides of the support plates 911 and 912 and is bent inward to prevent the wheel from impacting the outside. In FIG. 27, four flange parts 913 are provided at both sides of the first support plate 911 and the second support plate 912.
- the body portion 910 may further include an impact absorbing member 916 attached to the flange portion 913.
- the shock absorbing member 916 may reduce the amount of impact when the flange 913 impacts the obstacle by using a material having elasticity such as rubber. Since the shock absorbing member 916 is located at the outermost side of the trolley 900, the impact absorbing member 916 collides with the obstacle first. In addition, the front and rear shock absorbing member 916 and the flange portion 913 serves to protect the wheel located therebetween.
- a ring member 917 may be provided at one side of the support plates 911 and 912.
- the ring member 917 may be coupled with a crane (not shown) to facilitate installation of the trolley 900.
- the rail 10 on which the trolley 900 is installed is usually located at a high place out of reach of the operator. Therefore, it is convenient to use a crane to install the trolley 900 on the rail, the ring member 917 forms a coupling hole that can be hooked by the crane (not shown).
- the ring member 917 is formed on the two support plates 911 and 912 in consideration of installation stability.
- the support plates 911 and 912 may be formed far from the center of the support plates 911 and 912.
- only two may be formed diagonally as shown in FIG. 27.
- One or more wheels may be provided, and the plurality of wheels may be disposed in two spaced apart states on each side of the rail 10 for stable driving. As shown in FIG. 27, the present embodiment shows a case in which four wheels are adopted, two on each side, but the number and arrangement of the wheels are not limited thereto. The number or arrangement of wheels may vary when the shape of the rail 10 is changed. That is, one wheel may be mounted on the main body 910.
- the plurality of wheels may be coupled to the first support plate 911 or the second support plate 912 to be rotatably installed.
- each wheel may be rotatably supported on the shaft outer surface by a bearing installed therein for smooth rotation.
- the wheel may include rolling wheels 920 and 923 rolling along the upper surface of the rail 10, and a support wheel 930 supporting the lower surface of the rail 10.
- FIG. 27 illustrates two rolling wheels 920 and 923 coupled to the first supporting plate 911 and the second supporting plate 912, and a supporting wheel 930 coupled to the second supporting plate 912.
- the rolling wheels 920 and 923 are driving wheels 920 rolling along the rails 10 by the power transmitted from the power transmission unit 940 and power of the main body unit 910 although the power is not directly transmitted. According to the movement, the driving wheel 923 may include a driven wheel 923 rolling along the rail 10.
- Two driving wheels 920 may be coupled to the first support plate 911, and the driving wheels 920 may be integrally formed with the driving wheel gear 921.
- the driving wheel gear 921 may rotate the driving wheel 920 by the power transmitted from the power transmission unit 940.
- two driving wheel gears 921 may be engaged with the power transmission gear 922 at the same time, and the power transmission gear 922 may be connected with the output shaft 944. Accordingly, as the output shaft 944 rotates, the power transmission gear 922 rotates, and the two driving wheels 920 rotate in the same direction at the same time. Therefore, the driving force is applied to both of the driving wheels 920, thereby improving the grounding force between the rail 10 and the driving wheels 920, thereby preventing the main body 910 from sliding on the rails 10. have.
- the driving wheel 920 has a circular ground surface, which is usually in contact with the rail 10, but the thread of the driving wheel gear 921 may be in direct contact with the rail 10.
- Two driven wheels 923 may be coupled to the second support plate 912, and the rails 10 may be passively driven along the main body 910 moving on the rails 10 according to the rolling motion of the driving wheels 920. Cloud movement of the image.
- the driven wheel 923 is located corresponding to the position of the driving wheel 920.
- one driven wheel 923 is located or alternately positioned with the driving wheel 920. The number and location of) may optionally vary.
- the support wheel 930 may be coupled to the second support plate 912 in which the power transmission unit 940 is not located in order to solve the instability caused by the weight imbalance of the trolley 900. .
- the support wheel 930 may be coupled to the first support plate 911, but it may be most effective to support the lower end of the rail 10 by coupling to the second support plate 912.
- the power transmission unit 940 is located on one side of the main body unit 910, weight imbalance on both sides occurs. This weight imbalance can cause the trolley 900 to become unstable and cause the driven wheel 923 to be spaced apart from the rail 10. In addition, fatigue may be accumulated in the driving wheel 920 and the power transmission unit 940 to accelerate the maintenance cycle.
- the support wheel 930 may be coupled to change the position of the body 910 up and down.
- the support wheel 930 may be fixedly coupled to the support wheel bracket 931, and the support wheel bracket 931 may be coupled to be changeable up and down of the main body 910.
- the trolley 900 can be easily installed on the rail 10. That is, at the time of installation, the support wheel 930 is positioned below and installed on the rail 10 in a state where the distance between the driven wheel 923 and the driven wheel 923 is wider than the thickness of the rail 10. It is fixed in the raised state so that the support wheel 930 can support the rail (10).
- the thickness of the rail 10 may vary. In this case, the thickness of the rail 10 may be changed by changing the vertical position of the support wheel 930.
- FIG. 30 is a cross-sectional view taken along the line A-A of FIG. A coupling method of the support wheel 930 will be described with reference to FIG. 30.
- the support wheel bracket 931 is provided with a guide groove 931a in the vertical direction.
- the fixing member 932 is inserted through the guide groove 931a to be coupled to the second support plate 912.
- the support wheel bracket 931 is coupled to the second support plate 912 through the bolt 932a and the nut 932b.
- FIG. 31 is an exploded perspective view showing a power transmission unit 940 of the trolley 900 according to the fifth embodiment of the present invention.
- the power transmission unit 940 will be described with reference to FIGS. 27 and 31.
- the power transmission unit 940 may be connected to the main body 910 with respect to the traveling direction of the rail 10 to transmit power for driving or braking the main body 910.
- the drawing shows that the power transmission unit 940 is coupled to the first support plate 911.
- the power transmission unit 940 includes an input shaft 942 that rotates by power, an output shaft 944 connected to the input shaft 942 to travel or brake the main body 910, and an output shaft 944 on the input shaft 942. It may include a locking unit 950 that transmits the rotational force in the direction but does not transmit the rotational force in the direction of the input shaft 942 in the output shaft (944).
- the power transmission unit 940 transmits power for driving.
- the present invention is not limited thereto and may include a power transmission unit for braking (see 510 of FIG. 10).
- An apparatus for transmitting power for braking has been described in the trolley 500 according to the second embodiment of the present invention to the trolley 502 according to the fourth embodiment.
- the power transmission unit for transmitting power for braking is not limited to the above invention and may include various embodiments.
- the power transmission unit 940 may be understood as a generic term for a functional configuration from the input shaft 942 to which the external power is input, to operate the driving wheel 920 via the output shaft 944. Accordingly, the power transmission unit 940 may include an input shaft 942, an input gear 943, an output gear 945, an output shaft 944, a power transmission gear 922, and / or a drive wheel gear 921. have.
- the input shaft 942 may be connected to the connection unit 960, and power may be input by the handle unit 970 connected to the connection unit 960. It will be described how the main body 910 is driven by the input power.
- the input shaft 942 that rotates by power rotates the input gear 943, and the output shaft 944 rotates by the output gear 945 that meshes with the input gear 943.
- the output shaft 944 is connected to the power transmission gear 922, and the rotation of the output shaft 944 rotates the drive wheel gear 921 meshing with the power transmission gear 922.
- the driving wheel 920 integrally formed with the driving wheel gear 921 rotates to roll on the rail 10, and the main body 910 connected to the driving wheel 920 travels on the rail 10. .
- the driven wheel 923 or the support wheel 930 connected to the main body 910 may also rotate at the same time.
- the input gear 943 and the output gear 945 may be coupled to convert the power input from the lower side of the main body 910 in the vertical direction. Since the trolley 900 generally travels along the rail 10 installed on the ceiling (or air), the operator must input power at the bottom of the trolley 900. Since the axial direction of the driving wheel 920 is generally horizontal to the ground, a gear assembly capable of converting the power input from the lower side of the main body 910 in the vertical direction may be required. In FIG. 27, the input gear 943 and the output gear 945 are coupled to the bevel gear assembly. However, the input gear 943 and the output gear 945 are coupled to the worm and the worm gear assembly.
- the locking unit 950 is coupled to rotate in the same direction as the rotational direction of the active rotary body 952 and the active rotary body 952 by the input power, and coupled with the input shaft 942 or output shaft 944
- the driven rotating body 953 may be included.
- FIG. 31 illustrates an active rotary body 952 that is connected to the output gear 945 and rotates, and a driven rotary body 953 that rotates the output shaft 944 by being coupled to the output shaft 944.
- the active rotor 952 may be connected to the input shaft 942 to rotate, and the driven rotor 953 may rotate the input gear 943.
- the locking unit 950 is located closer to the main body 910, thereby bringing the center of gravity of the main body 910 closer to the center of the trolley 900.
- the locking unit 950 rotates the driven rotating body 953 by the rotation of the active rotating body 952 and rotates the output shaft 944 or the input shaft 942, while the output shaft 944 or the input shaft ( It is characterized in that the driven rotating body 953 does not rotate even when a rotational force is applied to 942.
- the locking unit 950 will be described as an example of a configuration for representing the above function.
- FIG. 32 is a cross-sectional view illustrating the locking unit 950 of the trolley 900 according to the fifth embodiment of the present invention
- FIG. 33 is a view showing the locking unit 950 of FIG. 32 rotating.
- the locking unit 950 is a housing 951 accommodating the driven rotating body 953 therein, and a lock interposed between the housing 951 and the driven rotating body 953 and the pinching occurs only in one direction of rotation.
- a member 954 and / or an active rotating member 952 may further include an unlocking member 952b that may move the locking member 954 by rotation.
- the active rotor 952 and the driven rotor 953 may be coupled by the combination of the stud member 953a and the stud hole 952a.
- FIG. 31 shows that a stud member 953a protrudes on one surface of a driven rotating body 953 and stud holes 952a are formed on a corresponding surface of the active rotating body 952.
- the stud member 953a of the combination allows concentric rotation.
- the active rotor 952 may be coupled to the output gear 945 to allow the same rotation.
- the driven rotating body 953 may be coupled to the output shaft 944 to allow the same rotation.
- the driven rotating body 953 and the output shaft 944 may be keyed. That is, the key 956 may be inserted between the key groove 953c provided in the driven rotating body 953 and the key groove 944a provided in the output shaft 944.
- the locking member 954 is interposed between the housing 951 and the guide surface 953b of the driven rotating body 953, and may have a cylindrical shape.
- the guide surface 953b may have a radius of curvature greater than the radius of curvature of the inner surface of the housing 951. Therefore, the distance between the guide surface 953b and the housing 951 is closer to the center of the guide surface 953b.
- the locking member 954 may have a diameter between a maximum value and a minimum value of the distance between the guide surface 953b and the housing 951.
- the driven rotating member 953 may rotate only in one direction.
- the locking member 954 prevents the rotation of the driven rotor 953 by causing a pinch when the driven rotor 953 rotates in one direction.
- only one locking member 954 exists.
- the rolling member 954 acts as a rolling force toward the center direction of the guide surface 953b, and the driven rotating member 953 can rotate freely.
- the locking member 954 rotates clockwise by friction with the guide surface 953b. Therefore, the locking member 954 is applied between the guide surface 953b and the housing 951 by a rolling force acting toward the outer direction of the guide surface 953b, and the driven body 953 cannot rotate.
- ⁇ rotation direction> the clockwise direction in which the driven rotor 953 can rotate
- ⁇ pinching direction> the counterclockwise direction in which the driven rotor 953 is not rotatable
- the unlocking member 952b may be coupled to protrude on a surface facing the driven rotating body 953 of the active rotating body 952.
- the unlocking member 952b is positioned outside the locking member 954 and simultaneously rotates with the rotation of the active rotating member 952 to push the locking member 954 toward the center of the guide surface 953b. Therefore, the locking member 954 is not caught between the housing 951 and the guide surface 953b, and the driven rotating member 953 can rotate freely.
- the unlocking member 952b allows the driven rotating body 953 to rotate when the active rotating body 952 rotates even in the pinching direction. Therefore, it can operate as a one-way clutch. In other words, when the active rotating body 952 rotates in the pinching direction, the unlocking member 952b moves in the direction not to pinch the locking member 954 (in the direction of the center of the guide surface 953b), thereby driving the driven rotating body 953. ) Can be rotated. However, when a rotational force is transmitted to the output shaft 944 by an external force and the driven rotating body 953 tries to rotate in the clamping direction, the locking member 954 is sandwiched between the housing 951 and rotation is impossible.
- the locking member 954 and the unlocking member 952b may be provided in pairs on both outer sides of the guide surface 953b. This is to allow the driven rotating body 953 to be rotatable in both directions.
- the operation when the locking member 954 and the unlocking member 952b is provided only on one outer side of the guide surface 953b has been described above.
- the operation of the locking unit 950 will be described with reference to FIG. 33.
- the driven rotating body 953 may rotate together with the active rotating body 952 regardless of the clockwise direction or the opposite direction.
- 33 shows a case in which the active rotor 952 rotates counterclockwise.
- the unlocking member 952b is rotated by the rotation of the active rotating member 952 to push the first locking member 954-1 in the pinched position to a position where pinching does not occur.
- the driven rotating member 953 can rotate without interference.
- the locking unit 950 may drive the main body 910 by rotating the output shaft 944 in which direction the power is input, but the external force is applied to the main body 910 to rotate the output shaft 944.
- the driven body 953 is in a non-rotational state, and thus the main body 910 does not move.
- the active rotating body 952 and the driven rotating body 953 may be combined to generate play during rotational motion.
- the clearance refers to a rotation angle in which the active rotating body 952 can rotate independently of the driven rotating body 953.
- a free rotation angle at which the unlocking member 952b can move is required.
- the active rotor 952 should be able to move independently of the driven rotor 953. If the driven rotating body 953 and the active rotating body 952 are coupled without play, the unlocking member 952b cannot be moved by the locking member 954. That is, while the active rotating body 952 rotates by the rotational angle spaced from the driven rotating body 953, the unlocking member 952b moves to a position where pinching of the locking member 954 does not occur. 953 may rotate.
- the active rotating body 952 and the driven rotating body 953 may be coupled by receiving the stud hole 952a spaced apart from the stud member 953a.
- the driven rotating body 953 rotates with the rotation of the active rotating body 952 at a spaced distance from the stud member 953a and the stud hole 952a. That is, the inner diameter of the stud hole (952a) may be larger than the outer diameter of the stud member (953a) for the clearance between the active rotating body 952 and the driven rotating body (953).
- the locking unit 950 may further include an elastic member 955 for pushing the locking member 954 to a position where the clamping occurs.
- the locking member 954 In order to prevent the driven rotating body 953 from rotating by the output shaft 944, the locking member 954 must be in a pinched state. When the locking member 954 is not in the pinched state, the driven member 953 may not be prevented from rotating until the locking member 954 is in the pinched state.
- the elastic member 955 may block the allowable rotation for the driven rotating body (953) by pushing the locking members 954-1, 154-2 located on both sides to the position where the pinch occurs.
- the power transmission unit 940 may transmit power for driving or braking the main body unit 910.
- the trolley 900 may be installed at a place where flow may occur, such as a ship.
- the rail 10 may not always exist horizontally and may be installed at a predetermined inclination.
- force is generated in the trolley 900 by the potential energy.
- various external forces may be generated from the outside to apply a force to the trolley 900.
- the trolley 900 When the power transmission unit 940 transmits power for driving, when the power transmitted from the power transmission unit 940 is interrupted, the trolley 900 is in a braking state.
- the rotational force is transmitted to the output shaft 944 via the input shaft 942, the input gear 943, the active rotating body 952, and the driven rotating body 953, and the driving wheel 920.
- the rolling motion is started to drive the trolley 900 on the rail 10.
- the trolley 900 may remain stopped. This is because the locking unit 950 prevents the output shaft 944 from rotating when the driving wheel 920 tries to perform manual rolling motion by tilting or the like. Therefore, it is possible to enable a trolley 900 that can maintain a braking state without a separate braking device.
- the locking unit 950 may maintain a braking state. For example, when the braking operation is performed by a pad that applies friction to the wheel or the rail 10, when there is a predetermined change in the braking state due to external force (when the braking is loosened), the trolley 900 is in an unstable state. Will be.
- the locking unit 950 prevents rotation of the output shaft 944 in advance, thereby preventing a predetermined change in the braking state.
- the power transmission unit 940 will be described with reference to the coupling between the body portion 910 and the connection portion 960.
- the power transmission unit 940 may be surrounded by the case 941 and protected from the outside. This is because the power transmission unit 940 includes a coupling between the shaft and the gear, which may cause durability problems when exposed to the outside.
- the case 941 may include a base portion 941a and a cover portion 941b.
- An input shaft 942 penetrates the lower portion of the base portion 941a and is connected to the body 961 of the connection portion 960 to support the connection portion 960.
- one side of the base portion 941a may be coupled to the first support plate 911.
- the base portion 941a may be coupled to the first support plate 911 so as to be slidable in the up and down directions.
- the output shaft 944 and the output gear 945 are fixedly supported by the first support plate 911, and the input shaft 942 and the input gear 943 are fixedly supported by the base portion 941a.
- a slit hole through which the bolt can move in the up and down directions is formed in the base portion 941a, and a through hole 911c (see FIG. 30) through which the bolt penetrates is formed in the first support plate 911.
- a slit hole through which the bolt moves in the up and down directions may be formed in the first support plate 911, and a through hole through which the bolt penetrates the base portion 941a may be formed.
- the base portion 941a and the first support plate 911 may be coupled by a bolt and a nut. When the coupling of the bolt and the nut is loosened, the base portion 941a is slidable in the up and down directions.
- the base portion 941a may be open at four surfaces except for a surface and a bottom surface to which the first support plate 911 is coupled. This allows the power transmission unit 940 to be exposed only by removing the cover part 941b without having to completely remove the case 941 for maintenance and repair of the power transmission unit 940. At this time, the side of the base portion 941a may be partially provided for coupling the cover portion 941b and the base portion 941a, and the cover portion 941b and the base portion 941a may be bolted to each other.
- FIG. 34 is a cutaway view showing a connecting portion 960 of the trolley 900 according to the fifth embodiment of the present invention.
- the trolley 900 according to the fifth embodiment of the present invention may further include a connection portion 960 that is detachably connected to the handle unit 970 for inputting power.
- a connection portion 960 that is detachably connected to the handle unit 970 for inputting power.
- the conventional trolley 9 has a problem in that the chain 2 for driving or braking cannot be deleted when it is unnecessary.
- embodiments of the present invention may utilize a handle unit 970 and a connection portion 960 that are detachably connected to input power for driving or braking.
- connection portion 960 is connected to the handle unit 970, and the other end is connected to the power transmission unit 940.
- One end of the connection part 960 may be connected to the connection protrusion 972 provided at the end of the handle bar 971 to connect the rotational force of the handle unit 970 to the power transmission unit 940.
- the connection 960 may include a body 961 and a base 962 for this purpose.
- the body 961 may provide a rotation space 961a through which the connection protrusion 972 may rotate, an upper portion thereof may be connected to the input shaft 942, and a lower portion thereof may be connected to the base 962.
- the base 962 may include a through groove 963 in which the connecting protrusion 972 is inserted and a seating groove 964 in which the connecting protrusion 972 is seated.
- 34 illustrates an example of a bar (bar) form of the connecting projection 972, the through groove 963 and the seating groove 964 is formed to correspond to this.
- bar bar
- FIG. 34 illustrates that the through grooves 963 and the seating grooves 964 intersect at 90 degrees
- the present invention is not limited thereto.
- the rotation space 961a may be secured only by an acute angle at an angle where the through groove 963 and the seating groove 964 intersect with each other.
- connection protrusion 972 may be inserted into the body 961 through the through groove 963 and then rotated 90 degrees in the rotation space 961a to be seated in the seating groove 964.
- the rotational force of the handle unit 970 is transmitted to the connection part 960 as it is. That is, the rotational force rotates the input shaft 942 through the base 962 and the body 961.
- the shape of the seating groove 964 is not limited to a fine shape as shown in Figure 34, may include a rotation preventing jaw (not shown) is formed so that the connection projection 972 is not seated and rotated. have.
- the connecting portion 960 may include a guide protrusion 966 to facilitate fitting of the connecting protrusion 972 into the seating groove 964.
- the guide protrusion 966 includes an inclined guide surface 953b, even if the connection protrusion 972 does not rotate exactly 90 degrees after passing through the through groove 963, and the connection protrusion 972 is seated in the seating groove 964. Can be guided.
- the guide protrusion 966 may be provided in the base 962 between the through groove 963 and the seating groove 964.
- the connection part 960 may include a guide member 965 for guiding the end of the handle unit 970 to be easily inserted.
- the guide member 965 may be provided below the body 961, and may include a shape in which the opening is widened toward the end. Therefore, even if the connection protrusion 972 is inserted only into the opening of the guide member 965 even though the connection protrusion 972 does not fit to the through groove 963, the guide protrusion 972 is guided along the inner surface of the guide member 965 and inserted into the through groove 963. It becomes possible.
- the connecting portion 960 is an elastic support member for applying a force in the direction of the through groove 963 to the connecting protrusion 972 in order to prevent the connecting protrusion 972 from being separated from the seating groove 964 (not shown). May include).
- the elastic support member (not shown) may include a support surface and an elastic member, and pressurized while the connection protrusion 972 is seated to prevent the connection protrusion 972 from being separated from the seating groove 964. 960 can be transmitted without loss of rotational force.
- FIG. 35 is a view showing the handle unit 970 of the trolley 900 according to the fifth embodiment of the present invention, showing a state before refraction, and FIG. 36 shows a state after refraction in FIG.
- the handle unit 970 may be included in the trolley 900 or may be a separately produced device.
- the handle unit 970 is not limited to that used in the trolley 900 according to the fifth embodiment of the present invention, and includes those used in other devices including the connection unit 960.
- the handle unit 970 as a separate device will be described.
- the handle unit 970 may be detachably connected to the trolley 900 moving along the rail 10 to input power for driving or braking.
- the handle unit 970 may include a handle bar 971 including a joint portion 973 and a connection member 972 connected to the connection portion 960 of the trolley 900.
- Handle unit 970 may be provided in the form of a long bar (bar) because it should be able to connect to the connecting portion 960 of the trolley (9) located higher than the user's working position. Since the general trolley 9 operates the driving unit or the braking unit using the chain 2, the worker works while pulling the chain 2. However, this method requires a great force and threatens the safety of the worker by the shaking chain 2. By using the handle unit 970 detachably connected, power can be transmitted to the power transmission unit 940 while eliminating the chain 2.
- the chain 2 rotates the input shaft 942 by the pulling force of the operator, while the handle unit 970 rotates the handlebar 971 directly by the operator or handlebar 971 to the transmission. Can be rotated by connecting.
- such an input method of the rotation day can provide the input work more safely and with less force.
- the end of the handle bar (971) can be bent in two stages (see a1, a2) to facilitate the user input the rotation force. .
- the handle unit 970 basically transmits power for driving or braking, but may also be used when a worker moves the trolley 900. That is, the operator may move the trolley 900 on the rail 10 by providing a pulling or pushing force after holding the handle unit 970 connected to the connecting portion 960.
- the handle bar 971 may include a refractive portion 973.
- the refraction portion 973 includes a portion that is bent or folded by a joint.
- Refractive portions 973 include one-way or multi-directional joints.
- the handlebar 971 to be refracted allows the operator to rotate the handlebar 971 in various positions or postures.
- the handle unit 970 without the refracting portion 973 applies a large torque to the input shaft 942, As fatigue accumulates, the input shaft 942 may be damaged.
- the turning force is proportional to the length from the input shaft 942 to the portion to be refracted. Therefore, when the length of the input shaft 942 and the refracted portion approaches, the turning force is reduced and the fatigue applied to the input shaft 942 is reduced.
- the refraction portion 973 of the handle bar 971 can be used even when there is an obstacle in the traveling direction.
- the handle bar 971 includes a first handle bar 971-1 positioned at one end of the joint part 973a, a second handle bar 971-2 located at the other end of the joint part 933a, and a refraction unit. It may include an elastic member (973b) that can maintain the unrefractive state when the external force bending the 971 is removed. Both ends of the elastic member 973b may be fixed to the first handle bar 971 and the second handle bar 971 to surround the joint portion 973a.
- the multidirectional joint portion 973a may use a universal joint, and the elastic member 973b may use a coil spring.
- the elastic member 973b allows the handlebar 971 to maintain a date despite the joint portion 973a. Therefore, the worker may easily connect the connecting protrusion 972 to the connecting portion 960. In addition, the handlebar 971 can be prevented from being deflected due to the shaking of the ship and the like, and the safety of the operator can be achieved.
- FIG. 37 is an exploded perspective view showing the configuration of the joint portion 973a of FIG. 35.
- the joint portion 973a includes a first joint member 973a1 and a second joint member 973a2, and is inserted between the two joint members 973a1 and 973a2 so as to be rotatable and not separated from each other.
- the first and second joint members 973a1 and 973a2 have flange portions for coupling on both sides, and through holes for coupling with the pins 973a4 and 973a5 are formed on the flange portions.
- the two joint members 973a1 and 973a2 are coupled to each other by 90 degrees, and an insertion member 973a3 is interposed between the two joint members 973a1 and 973a2.
- the insertion member 973a3 is formed with a through hole crossing each other in a 90 degree direction, and the pins 973a4 and 973a5 are coupled to the through hole.
- the insertion member (973a3) is not necessary, but only one rotational movement on one plane is allowed.
- the rotational motion is performed on two planes. It becomes possible. This not only means that the first handlebars 971-1 and the second handlebars 971-2 can be bent in any direction, but also the rotational force even when the two handlebars 971-1 and 971-2 are bent. This means that it can be delivered.
- 38 is a view showing a handle unit including a rotating cover.
- the rotating cover includes a first rotating cover 975-1 provided to be rotatable in the handle 974, and a second rotating cover 975-2 provided to be rotatable in the second handle bar 971-2. can do.
- the handle 974 includes support jaws 974a and 974b capable of supporting the upper and lower ends of the first rotating cover 975-1
- the second handle bar 971-2 includes the second rotating cover 975. It may include a support jaw (971-2a, 971-2b) that can support the upper, lower ends of -2).
- the rotary cover is rotatable relative to the handle 974 or the second handle bar 971-2. Relatively rotatable means that it can remain stationary despite the rotation of the handle 974 and the second handlebar 971-2.
- 39 is a view illustrating a method of coupling the connecting portion 960 and the handle unit 970 of the trolley 900 according to the fifth embodiment of the present invention, wherein (a) shows a state before the connecting protrusion 972 is inserted. , (b) the connection projection 972 is inserted into the through groove 963, (c) the connection projection 972 is rotated 90 degrees in the rotation space 961a, (d) It is sectional drawing which shows the state in which the connection protrusion 972 was seated in the mounting groove 964. 40 is a view showing the operation of the trolley 900 according to the fifth embodiment of the present invention.
- connection protrusion 972 Since the handle bar 971 may maintain a date by the elastic member 973b, it is easy to position the connection protrusion 972 inside the opening of the guide member 965.
- the connecting protrusion 972 is guided by the guide member 965 and penetrates the through groove 963 to enter the rotation space 961a. Then, the through groove 963 and the seating groove 964 are shifted from each other (FIG. 39). 90 degrees) to be able to be seated in the seating groove 964. At this time, even if a predetermined angle shift, it may be guided to the mounting groove 964 by the guide protrusion 966.
- the connection protrusion 972 is seated in the seating groove 964 by pulling down the handle unit 970 in a state in which the seating recess 964 may be seated.
- the rotation force can be transmitted to the connecting portion 960 by rotating the handle bar 971.
- the worker may apply the rotational force by holding the handle 974 with one hand and the handlebar 971 with the other hand.
- the handle bar 971 may be refracted at various angles by the refraction unit 973, the operator may rotate the handle bar 971 in various postures.
- the rotary cover does not need to turn the hand according to the rotation of the handle 974 and the handlebar 971 when the user inputs rotational force while holding the handle 974 and the handlebar 971 by hand. do. That is, the user grips the first rotating cover 975-1 and the second rotating cover 975-2 in both hands, and the arm holding the second rotating cover 975-2 is fixed to be a rotating shaft. In the state, the arm holding the first rotation cover 975-1 is rotated as if rotating about the rotation axis to input rotational force.
- the rotary cover 975-1, 975-2 can be placed in a stationary state irrespective of their rotation, so that the user is cumbersome
- the gripped hand can be prevented from rotating in the opposite direction of the rotation or rubbing the palm.
- FIG. 41 is a view illustrating a handle unit 980 according to another exemplary embodiment of FIG. 35, illustrating a state before refraction, and FIG. 42 illustrates a state after refraction of FIG. 41.
- the refraction portion may include a multidirectional joint portion 983 and a cover member 985 that may open or cover the joint portion 983.
- the lid member 985 is another embodiment corresponding to the elastic member 973b of FIG.
- the cover member 985 may be provided to surround at least a portion of the periphery of the joint part 983 and may be slidably moved along the handle bar 981. Since the cover member 985 slides in the direction of the joint portion 983 and wraps at least partially around the joint portion 983, the handle bar 981 can be prevented from being bent.
- the handle bar 981 may further include an elastic support 987 that provides an elastic force so that the cover member 985 covers the joint portion 983.
- the elastic support 987 provides an elastic force to return the cover member 985 to its original position (covering the joint portion 983) when the cover member 985 is moved downward to expose the joint portion 983.
- a stopper 985a may be provided at an upper end of the joint part 983 and may support an upper end of the cover member 985 to limit an upward movement of the cover member 985.
- the handle bar 981 may further include a cover member fixing part 986 which may fix the cover member 985 in an open state of the joint part 983.
- the cover member fixing part 986 is provided with a fixing member 986b protruding from the lower end of the cover member 985 and a movable member 986a which is provided at the lower end of the elastic support part 987 and is rotatable and coupled to the fixing member 986b. ) May be included. At this time, the fixing member 986b and the moving member 986a may be interchanged with each other.
- the user may connect the handle unit 980 having the cover member 985 to cover the joint part 983 to the connection part 960. Thereafter, the cover member 985 is pulled so that the portion of the joint portion 983 may be completely exposed so that the handle bar 981 may be refracted. Thus, the user can rotate the handle unit 980 at an oblique angle. At this time, as shown in FIG. 41, the cover member 985 may be fixed to the cover member fixing part 986 to keep the joint portion 983 open.
- FIG. 43 is a view illustrating a handle unit 990 according to another embodiment of FIG. 35 and illustrates a state after refraction.
- the refracting portion 993 may include a second elastic member 993a and an elastic cover 993b interpolating the second elastic member 993a.
- the second elastic member 993a may include a spring
- the elastic cover 993b may include a flexible material such as rubber or plastic.
- the second elastic member 993a and the elastic cover 993b may be integrally formed.
- the elastic cover 993b allows the handlebar 991 to maintain a date when the external force bending the deflection portion 993 is removed.
- FIG 44 is a view illustrating a handle unit 970 which can be extended in length, and shows a state in which the length is extended.
- the handle unit 970 may vary in length.
- the installation height of the trolley 900 may vary depending on necessity, and the height or working environment of the user may vary. Accordingly, the handle unit 970 of variable length can input power to the trolley 900 at the optimum height in various situations.
- the second handle bar 971-2 may have a two-stage structure including a first stage handle bar 976a and a second stage handle bar 976c.
- the first stage handlebar 976a can be inserted into the second stage handlebar 976c. Therefore, when the first stage handlebar 976a is inserted into the second stage handlebar 976c, the overall length of the handle unit 970 is reduced and the first stage handlebar 976a is not separated from the second stage handlebar 976c. In a state where it comes out so that the overall length of the handle unit 970 is increased.
- the outer circumferential surface of the first stage handlebar 976a and the second stage have a locking step and a protrusion that can prevent the first stage handlebar 976a from being separated out of the second stage handlebar 976c. It may be included in the inner peripheral surface of the handle bar (976c).
- the handle unit 970 is not only variable in length but also fixed in a changed state.
- the first stage handle bar 976a may be provided to be inserted into the fixing bar 976b and protruded to an outer circumferential surface thereof.
- the fixing protrusion 976b may be elastically supported to maintain the protruding state of the first stage handlebar 976a.
- the fixing protrusion 976b is caught by a locking groove (not shown) provided in the second stage handle bar 976c.
- the surface facing the second-stage handlebar 976c of the fixing protrusion 976a is provided in a curved shape for easy insertion, and the opposing surface is caught in the locking groove (not shown) of the second-stage handlebar 976c. It may be provided in an inclined shape to easily maintain the.
- FIG 44 illustrates only the most general form of the handle unit 970 which can be extended, a structure that can be extended in length or a structure that is fixed in a modified length state can be employed within the general technical scope.
- FIG. 45 is a view showing a handle unit 970 which can be rotated by the transmission D
- FIG. 46 is a bottom view of FIG.
- the lower end of the second handle bar (971-2) may be provided with a socket (977a) that can be inserted into the wrench (Wrench, W) of the transmission (D).
- the socket 997a has a shape corresponding to the outer surface of the wrench W.
- the socket (977a) also forms a hexagonal groove.
- the socket 997a is not only integrally formed on the second handle bar 971-2, but may be formed on a separate socket member 997b.
- the socket member 997b may be formed with sockets 797a of various sizes or shapes to correspond to the sizes or shapes of the various wrenches W, and may be detachably coupled to the second handlebars 971-2. have.
- a locking portion 977c may be provided in order to prevent the socket member 997b from being rotated independently of the second handle bar 971-2 in a state where the socket member 997b is inserted into the second handle bar 971-2.
- the wrench W is provided in the transmission apparatus D, and the socket 997b was formed in the 2nd handle bar 971-2 in the figure, unlike this, the socket (not shown) in the transmission apparatus D is shown. ) May be provided, and a wrench (not shown) may protrude from a bottom surface of the second handle bar 971-2.
- the rotation shafts may be parallel to each other to prevent the transmission D from rotating.
- the handle 974 connected thereto is also rotated together with the rotation of the second handle bar 971-2.
- Handle 974 is to rotate the second handle bar (971-2) to the axis of rotation.
- the handle 974 since the handle 974 is projected toward the operator rather than the position of the socket (977a) may be a hazard to the operator while rotating.
- the handle unit 970 may include a rotating part 978 capable of rotating the handle 974.
- the handle 974 may be rotated 180 degrees by the rotation part 978, and the position may be switched in a direction away from the direction protruding toward the worker by the rotation.
- the rotating unit 978 may include a fixing device capable of fixing the rotation state. This is to prevent the handle 974 from rotating in the worker side during the rotation.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Handcart (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims (21)
- 레일을 따라 이동하는 본체부; 및상기 본체부의 주행 또는 제동을 위한 동력을 전달하는 동력전달부를 포함하고,상기 동력전달부는,입력축과,상기 입력축의 동력을 전달받아 상기 본체부로 동력을 전달하는 출력축과,상기 입력축에서 상기 출력축 방향으로 동력을 전달하면서도 상기 출력축에서 상기 입력축 방향으로 동력을 전달하지 않는 잠금유닛을 포함하는 트롤리.
- 제1항에 있어서,상기 잠금유닛은,상기 입력되는 동력에 의해 회전하는 능동회전체와,상기 능동회전체의 회전 방향과 같은 방향으로 회전하도록 상기 능동회전체와 결합하여 상기 출력축을 회전시키는 피동회전체를 포함하되,상기 피동회전체는 상기 능동회전체의 회전에 의해 회전 가능하면서도 상기 출력축의 회전에 의해서는 회전하지 않는 트롤리.
- 제2항에 있어서,상기 잠금유닛은,상기 피동회전체를 내부에 수용하는 하우징과,상기 하우징과 상기 피동회전체 사이에 개재되고, 일 방향의 회전방향으로만 끼임이 발생하는 잠금부재를 더 포함하되,상기 능동회전체가 회전하는 경우 상기 잠금부재는 끼임이 발생하지 않아 상기 피동회전체가 회전하고,상기 출력축에서 상기 피동회전체로 동력이 전달되는 경우 상기 잠금부재는 끼임이 발생하여 상기 피동회전체가 회전하지 않는 트롤리.
- 제3항에 있어서,상기 잠금유닛은,상기 능동회전체와 연결되어 상기 능동회전체의 회전에 의해 상기 잠금부재를 이동시킬 수 있는 잠금해제부재를 더 포함하되,상기 능동회전체와 상기 피동회전체는 회전 운동시에 유격이 발생하도록 결합하여 상기 유격된 거리만큼 상기 능동회전체의 회전력이 상기 피동회전체에 전달되지 않으며,상기 능동회전체가 상기 유격만큼 회전하는 동안 상기 잠금해제부재가 상기 잠금부재를 끼임이 발생하지 않는 위치로 이동시켜, 상기 능동회전체가 상기 유격된 거리를 지나 상기 피동회전체에 회전력을 전달하는 경우 상기 피동회전체가 회전하는 트롤리.
- 제2항에 있어서,상기 잠금유닛은,상기 능동회전체와 상기 피동회전체 중 어느 하나에 형성된 스터드 부재와,상기 능동회전체와 상기 피동회전체 중 다른 하나에 형성되고, 상기 스터드 부재를 수용하는 스터드홀을 더 포함하고,상기 스터드홀의 내경은 상기 스터드 부재의 외경보다 더 커서 상기 스터드홀과 상기 스터드 부재 사이에 유격이 발생하는 트롤리.
- 제3항에 있어서,상기 잠금유닛은,상기 잠금부재를 끼임이 발생하는 위치로 밀어주는 탄성부재를 더 포함하는 트롤리.
- 제4항에 있어서,상기 잠금부재는 서로 다른 회전방향에서 끼임이 발생하도록 두 개 이상 마련되고,상기 잠금해제부재는 상기 잠금부재에 대응하여 두 개 이상 마련되어,상기 능동회전체가 어느 방향으로 회전하더라도, 상기 잠금해제부재가 상기 잠금부재를 끼임이 발생하지 않는 위치로 이동시켜 상기 피동회전체가 회전하는 트롤리.
- 제1항에 있어서,상기 동력전달부는 상기 입력축과 연결되는 입력기어와, 상기 입력기어와 치합하고 상기 출력축과 연결되는 출력기어를 포함하고,상기 입력축과 상기 출력축은 서로 평행하지 않도록 배열되고, 상기 입력기어와 상기 출력기어는 회전축 방향을 전환하도록 결합하여 상기 본체부의 하측에서 입력되는 동력을 본체부에 전달하는 트롤리.
- 제1항에 있어서,상기 동력전달부와 연결되는 접속부와, 상기 접속부에 분리 가능하게 접속되고 동력이 입력되는 핸들유닛을 더 포함하고,상기 접속부는 상기 핸들유닛의 단부가 삽입되기 용이하도록 안내하는 가이드부재를 포함하는 트롤리.
- 제9항에 있어서,상기 핸들유닛은 상기 접속부와 접속되는 접속부재와, 외력에 의해 구부러지는 굴절부를 구비하는 핸들바를 포함하고,상기 핸들유닛이 상기 접속부에 접속되는 경우 상기 핸들유닛의 회전력은 상기 입력축으로 전달되는 트롤리.
- 제10항에 있어서,상기 핸들유닛은 상기 굴절부에 탄성력을 제공하는 탄성부재를 더 포함하여 상기 굴절부를 굽히는 외력이 제거된 경우 굴절되지 않은 상태를 유지할 수 있는 트롤리.
- 제10항에 있어서,상기 핸들유닛은 상기 굴절부를 개방하거나 상기 굴절부를 덮을 수 있는 덮개부재를 더 포함하여, 상기 덮개부재가 상기 굴절부를 덮는 경우 상기 핸들바가 외력에 의해 굴절되지 않는 트롤리.
- 제12항에 있어서,상기 핸들유닛은 상기 덮개부재가 상기 굴절부를 개방한 상태로 고정할 수 있는 덮개부재 고정부를 더 포함하는 트롤리.
- 제12항에 있어서,상기 핸들유닛은 상기 덮개부재가 상기 굴절부를 덮는 방향으로 탄성력을 제공하는 탄성지지부를 포함하는 트롤리.
- 제9항에 있어서,상기 핸들유닛은 상기 접속부와 접속되는 접속부재와, 작업자가 파지하여 회전력을 입력할 수 있는 핸들바를 포함하고,상기 핸들유닛이 상기 접속부에 접속되는 경우 상기 핸들유닛의 회전력은 상기 입력축으로 전달되고,상기 핸들유닛은, 회전축이 되는 핸들바와 물리적으로 연결되고 상기 핸들바 중심축으로부터 이격되어 위치하는 손잡이와, 상기 손잡이의 외경을 둘러싸고 독립적으로 회전 가능한 제1 회전커버와, 상기 핸들바의 외경을 둘러싸고 독립적으로 회전 가능한 제2 회전커버를 포함하는 트롤리.
- 제1항에 있어서,상기 본체부는 상기 레일의 상면을 따라 구르는 구름휠과, 상기 레일의 하면을 따라 구르는 지지휠을 포함하고,상기 지지휠은 상기 레일의 길이방향 중심선을 기준으로 상기 구름휠과 대향하여 위치하고, 상기 동력전달부와 상기 잠금유닛이 상기 레일의 길이방향 중심선을 기준으로 일 측에 위치함으로써 발생하는 모멘트를 지지하는 트롤리.
- 제16항에 있어서,상기 본체부는 상기 레일의 길이방향 중심선을 기준으로 양 측에 위치하는 제1 지지판과 제2 지지판을 포함하고,상기 구름휠은 상기 제1 지지판과 상기 제2 지지판에 각각 결합되고,상기 동력전달부는 제1 지지판에 결합되며,상기 지지휠은 제2 지지판에 결합되는 트롤리.
- 제16항에 있어서,상기 지지휠은 상기 본체부의 상하로 위치 변경 가능하도록 결합하는 트롤리.
- 제16항에 있어서,상기 본체부는,상기 레일의 길이방향 중심선을 기준으로 양 측에 위치하는 제1 지지판 및 제2 지지판과,상기 제1 및 제2 지지판을 관통하여 연결하는 연결축부재와,상기 연결축부재의 외경을 둘러싸고 상기 조임너트와 상기 제1 지지판 또는 상기 제2 지지판 사이에 마련되어 상기 조임너트와 상기 제1 지지판 또는 상기 제2 지지판 사이의 거리를 일정하게 유지하는 제1 스페이서와,상기 연결축부재의 외경을 둘러싸고 상기 제1 지지판과 상기 제2 지지판 사이에 마련되어 상기 제1 지지판과 상기 제2 지지판 사이의 거리를 일정하게 유지하는 제2 스페이서와,상기 연결축부재와 상기 제1 및 제2 지지판을 고정하는 조임너트를 포함하는 트롤리.
- 제19항에 있어서,상기 연결축부재의 양 단부에는 관통홀이 형성되고, 상기 조임너트에는 외경을 따라 일측이 개구되는 슬릿이 형성되어, 상기 조임너트가 상기 연결축부재에 결합된 상태에서 상기 관통홀을 따라 핀이 삽입되는 경우 상기 핀에 의해 상기 조임너트의 회전과 이탈이 방지되는 트롤리.
- 제8항에 있어서,상기 동력전달부는 케이스를 더 포함하고,상기 케이스는, 상기 본체부에 결합되고 상기 입력축이 관통하는 베이스부와, 상기 입력기어와, 상기 출력기어와, 상기 잠금유닛을 둘러싸도록 상기 베이스부와 결합하는 덮개부를 포함하고,상기 베이스부는 상기 본체부와 상하 방향으로 이동 가능하도록 결합하여, 상기 입력기어와 상기 출력기어의 결합상태를 해제할 수 있는 트롤리.
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| JP2015551630A JP6039106B2 (ja) | 2013-01-25 | 2014-01-24 | トロリー |
| CN201480004677.0A CN104995122B (zh) | 2013-01-25 | 2014-01-24 | 吊运车 |
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| EP (1) | EP2949614B1 (ko) |
| JP (1) | JP6039106B2 (ko) |
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| CN (1) | CN104995122B (ko) |
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2013
- 2013-10-02 KR KR1020130117976A patent/KR101450625B1/ko active Active
- 2013-10-02 KR KR1020130117989A patent/KR102107211B1/ko active Active
- 2013-10-02 KR KR1020130118001A patent/KR101475206B1/ko active Active
- 2013-11-15 KR KR1020130139426A patent/KR101450626B1/ko active Active
- 2013-11-15 KR KR1020130139425A patent/KR101450624B1/ko active Active
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2014
- 2014-01-24 CN CN201480004677.0A patent/CN104995122B/zh active Active
- 2014-01-24 JP JP2015551630A patent/JP6039106B2/ja active Active
- 2014-01-24 US US14/763,160 patent/US9802792B2/en active Active
- 2014-01-24 WO PCT/KR2014/000715 patent/WO2014116062A1/ko not_active Ceased
- 2014-01-24 EP EP14742726.4A patent/EP2949614B1/en active Active
- 2014-07-25 KR KR1020140094630A patent/KR102027906B1/ko active Active
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| US4343240A (en) | 1980-03-11 | 1982-08-10 | Vital Kogyo Kabushiki Kaisha | Trolley |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107205713A (zh) * | 2015-01-21 | 2017-09-26 | 三星电子株式会社 | 制动系统和包括该制动系统的医疗设备 |
| EP3247276A4 (en) * | 2015-01-21 | 2018-02-07 | Samsung Electronics Co., Ltd. | Brake system and medical apparatus including the same |
| US9974497B2 (en) | 2015-01-21 | 2018-05-22 | Samsung Electronics Co., Ltd. | Brake system and medical apparatus including the same |
| US10631796B2 (en) | 2015-01-21 | 2020-04-28 | Samsung Electronics Co., Ltd. | Brake system and medical apparatus including the same |
| CN104627824A (zh) * | 2015-01-29 | 2015-05-20 | 中船华南船舶机械有限公司 | 船用起重机夹轨器 |
| CN104627824B (zh) * | 2015-01-29 | 2016-07-06 | 中船华南船舶机械有限公司 | 船用起重机夹轨器 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104995122B (zh) | 2017-05-24 |
| US20150321887A1 (en) | 2015-11-12 |
| EP2949614A4 (en) | 2016-08-31 |
| JP2016501804A (ja) | 2016-01-21 |
| EP2949614A1 (en) | 2015-12-02 |
| KR102027906B1 (ko) | 2019-10-07 |
| KR20140095951A (ko) | 2014-08-04 |
| KR102107211B1 (ko) | 2020-05-06 |
| CN104995122A (zh) | 2015-10-21 |
| KR20140095952A (ko) | 2014-08-04 |
| KR101475206B1 (ko) | 2014-12-22 |
| KR101450624B1 (ko) | 2014-10-15 |
| JP6039106B2 (ja) | 2016-12-07 |
| KR20140095957A (ko) | 2014-08-04 |
| KR20140095958A (ko) | 2014-08-04 |
| US9802792B2 (en) | 2017-10-31 |
| EP2949614B1 (en) | 2018-08-22 |
| KR20140108199A (ko) | 2014-09-05 |
| KR20140095950A (ko) | 2014-08-04 |
| KR101450626B1 (ko) | 2014-10-15 |
| KR101450625B1 (ko) | 2014-10-15 |
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