Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
  • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
  • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
  • B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Definitions

• the present invention relates to a jack according to the preamble of claim 1.
• Object of the present invention is thus to provide a scissors jack, which is changeable for stowage without affecting the reliability in a smaller transport volume.
• the scissors jack has a spindle, a foot, a support head, a traverse and a Spindelauf perhaps with a bore with an internal thread for receiving the spindle.
• the foot and the support head are rotatably connected by means of a respective support arm with the traverse and the Spindelauf perhaps, wherein the support arms are coupled together in the region of the foot and the support head and / or in the region of the traverse and the spindle.
• the spindle is coupled to the traverse and the Spindelauf mecanic, so that when turning the spindle of the distance between the spindle and Traverse changeable.
• the support arms are telescopically variable in length, so that the scissors jack can be pushed together without compromising the functional reliability to a smaller volume in order to store it in the trunk of a vehicle to save space.
• the spindle has a pulling direction, pressure direction and direction of rotation along its longitudinal axis, then it is particularly advantageous if the spindle is not coupled in the direction of compression, at least in the extended state, to reduce it with the traverse.
• the spindle can thus dodge in the pressure direction, so that a simple reduction in volume of the scissors jack is effected.
• the spindle has a length which is substantially less than or equal to twice the length of a support arm in the collapsed state.
• a very small storage volume of the scissors jack can be effected, since the spindle in the collapsed state does not protrude beyond the spindle receiver or the traverse.
• the traverse has a guide tube for at least partially receiving the spindle, wherein the guide tube is rotatably mounted in the crosshead coaxial with the longitudinal axis of the spindle, in particular by a ball bearing, and the spindle along its longitudinal axis within of the guide tube in an operating position and a stowed position is displaceable, wherein the spindle is coupled at least in the operating position with the guide tube in the pulling direction and direction, so that by rotating the guide tube, the distance between the spindle and Traverse transducer is changeable.
• a protrusion of the spindle over the Spindelaufterrorism intestinal in the collapsed state is largely excluded.
• the spindle in the second storage position does not protrude beyond the end of the guide tube facing away from the spindle, so that the smallest possible storage volume of the scissors jack is favored.
• the support arms consist of a first part and a second part, which are slidable into each other, so that the width of the scissor jack is substantially reduced by half.
• the support arms in the extended state are lockable, so that unintentional pushing the support arms is excluded.
• the locking element is a locking pin which in the extended state in the overlapping region of the first part with the second part, both of which each have at least one bore through the congruent superimposed Holes for locking is insertable.
• the locking pin is connected by means of a flexible clamp with the support arm, so that in the unlocked state loss of the locking pin is largely excluded.
• the guide tube having an inner radial wall and an outer radial wall in the longitudinal direction has a blind hole, with an internal polygon, in particular a hexagon socket, and a bore having a larger diameter than the spindle is provided.
• the spindle has a spindle driver at one end has, which rotatably connects the spindle with the guide tube.
• the scissors jack a spindle, Spindelauf 1969, trusses, ball bearings, a support head and a foot, wherein the two-part rotatable in the foot and in the support head and connected together with a pin per side support arms of the scissor jack are slidable and lockable, wherein the spindle with is provided with the Spindelmitauer, is axially displaceable and at the same time automatically moved in the guide tube during assembly and disassembly.
• the scissor jack has in the delivery state a much smaller length and can thus be easily accommodated in the trunk of a passenger car.
• FIG. 1 is a perspective view of a scissors jack
• FIG. 2 is a side view
• FIG. 3 is a front view
• FIG. 4 is a plan view
• FIG. 5 shows a section A-A
• FIG. 6 shows a detailed view T of the spindle end
• FIG. 7 shows a partial section of the cross-member bearing side
• FIG. 10 shows a detailed view U of the guide tube
• Figure 11 is a view R perpendicular to the assembly support arm-top
• FIG. 12 shows a section D-D through the locking pins
• Figure 13 is a plan view of the assembly support arm-bottom
• FIG. 14 shows a section E-E through the locking pins
• FIG. 15 shows a section F-F through the cross-member bearing side
• FIG. 16 shows a section G-G through the traverse thread side
• FIG. 19 shows a top view of the scissor car owner in the collapsed state
• FIG. 20 is an exploded view of the support arm top and support arm support head
• FIG. 21 is an exploded view of the support arm foot and the support arm bottom
• FIG. 22 shows an exploded view of the cross-member bearing side
• FIG. 23 shows a perspective view of the jack in the collapsed state
• FIG. 24 shows an exploded view of the traverse thread side
• FIG. 25 shows a plan view and a section of an alternative locking element
• FIG. 26 shows an exploded view of an alternative locking element
• FIG. 27 shows a section through an alternative guide tube
• Figure 28 is a section through an alternative locking element
• Figure 29 is an exploded view of an alternative locking element.
• Carrier arm support head 1 1 a. guide recess
• the spindle 1 is provided with a thread and rotated slightly at one end, so that the Spindelmit supportive 2 can be pressed or welded. At the other end, the spindle 1 is locally squeezed 1 a.
• the Spindelmit supportive 2 is a disc with a hole in the middle, which corresponds to the rotated part of the spindle.
• the circumference of the spindle driver 2 is polygonal (for example, a hexagon) and corresponds to the internal polygon of the guide tube 3.
• the guide tube 3 is a thin-walled polygonal tube (eg a hexagonal tube) which has on one side a bore 3d with a radial wall 3a inwards and on the other side a radial wall 3b to the outside.
• the bore 3d is slightly larger than the diameter of the spindle 1.
• the Spindelmit supportive 2 is supported on the inner radial wall 3a, wherein the spindle 1 with the Spindelmitillon dioxide 2 in the guide tube 3 can move axially.
• a polygonal Allen key eg a hexagon wrench
• the handwheel 5 On the outer radial wall 3b of the guide tube 3, the handwheel 5 is supported.
• the outer polygon of the guide tube 3 fits with the inner polygon of the handwheel 5 together. men. This transmits by hand on the handwheel 5, the torque on the guide tube 3 and continue on the Spindelmit supportive 2 on the spindle 1.
• the guide tube 3 is with the outer wall 3b against the handwheel 5 and 3c with the levy against the traverse 6 of the Secured axial displacement.
• the opposite side of the handwheel 5 serves as a support of the disc 4b of the ball bearing 4.
• the other disc 4a of the ball bearing 4 is supported on the cross-member bearing side 6 from.
• the assembly support arm-top consists of an approximately U-shaped support arm-traverse-top 10, an approximately U-shaped support arm support head 11 and two locking pins 14 which are provided with a web arm 14a.
• the support arm-top 10 has at one end eyes 10d which mate axially with the holes of the traverse 6 and 7, wherein the holes 10c for the locking pins 14 are laterally on the legs.
• the support arm-top 10 has a taper 10e in the central region.
• the support arm support head 1 1 fits with the lower end in the support arm cross-top 10.
• At the upper end of the legs are the eyes that are provided with teeth 1 1 d and in the middle have the holes for the support head rivets 18.
• There are flat guide grooves 1 1 a which are about as wide as the diameter of the locking pins 14.
• there are each leg a bore 1 1 b for the locking pins in the exploded and a bore 1 1 c for the locking pins in the collapsed state.
• These holes 1 1 b and 11 c of the support arm support head 1 1 fit axially with the holes 10 c of the support arm-top 10 together.
• the arms webs 14a of the locking pins 14 are bent into the T-shaped opening 10a of the support arm-cross-top 10, so that the locking pin te 14 are axially displaceable and secured against slipping. Once the locking pins 14 are completely inserted, they lock the holes 10c in the support arm-top cross-10 and the holes 1 1 b in the support arm support head 11 and thus allow the flow of force between the two Tragarm former 10 and 1 1.
• the locking pins 14 are also in the T-shaped opening 10a rotatable so that you can lock the support arm-top 10 and the support arm support head 1 1 during the working cycles.
• Outwardly axially displaced locking pins 14 lock the holes 1 1 b of the support arm support head 1 1 no longer and a collapse of both support arm 10 and 1 1 is possible.
• the two holes of the support arm cross-top then fit axially on the holes 1 1 c, so that a locking of the two support arms 10 and 1 1 in the collapsed state is possible.
• the locking pins 14 must be compressed and thus pushed axially inwards. Subsequently, they are rotated in the T-shaped opening 10a (section DD).
• the assembly support arm-bottom consists of an approximately U-shaped support arm foot 12, an approximately U-shaped support arm cross-down 13 and two locking pins 14, which are provided with a web arm 14.
• At the lower end of the legs of the support arm foot 12 are the eyes that are provided with teeth 12 d and in the middle have the holes for the foot rivets 17.
• Laterally on the legs of the support arm-foot 12 are the holes 12c for the locking pins 14, and above a T-shaped opening 12a with a collar 12b for the bent arms webs 14a of the locking pins 14.
• the locking pins 14 are also in the T shaped opening 12a rotatable so that the Tragarm- Traverse-down 13 and the support arm foot 12 are locked during the working cycles.
• Outwardly axially displaced locking pins 14 lock the holes 13b of the support arm-Traverse-bottom 13 is no longer and a collapse of both support arm 12 and 13 is possible.
• the support arm-traverse-bottom 13 has a taper 13d in the central region. Through the taper 13d there are no complete guide grooves 13a in the support arm-Traverse-bottom 13.
• the Traverse bearing side 6 is U-shaped, with a hole in the middle and two holes on the legs.
• the rivet compression rings 9 are pushed in and pressed against the eyes 10d and 13c of the support arms 10 and 13 (FIG. see section FF).
• the assembly guide tube is inserted into the central bore of the cross-beam bearing side 6 and with a press Tool locally deformed against slipping 3c (see Fig. 10).
• the guide tube 3 in the cross-member bearing side 6 is rotatable and axially secured against slipping.
• the assembly support arm-up and the assembly support arm-down are rotatable about the axis of the cross-beam bearing side 6, and axially secured against slipping.
• the traverse threaded side 7 is U-shaped, with a hole in the middle and two holes on the legs.
• crossbar bearing side 6 with the assembly support arm-up and the assembly support arm-down, and the crossbar threaded side 7 with the assembly support arm-up and the assembly support arm-down, are with the foot 15 below and with the Support head 16 above rotatably connected by foot rivets 17 and support head rivets 18.
• the spindle 1 is inserted with the Spindelmit supportive 2 through the guide tube 3 and screwed by the rotation of the guide tube 3 via the Spindelmit supportive 2 in the Spindelaufterrorism 8 until the Spindelmit supportive 2 leans on the inner radial wall 3a of the guide tube 3 , Thereafter, the spindle end 1 a outside the Spindelauf disruptive is deformed with a pressing tool against unscrewing.
• the finished jack is raised and lowered by turning the spindle 1 by means of a crank, in particular a polygonal Allen key, which fits into the end of the guide tube 3, or by means of the handwheel 5.
• FIGS. 25 and 26 An alternative embodiment of the locking elements can be taken from FIGS. 25 and 26.
• the locking pins 14 are riveted with a bracket 19 to an assembly, which is then riveted together with the two support arms 10,13 and 1 1, 12.
• the assembly between the locking pins 14 and web arms 14a can be replaced.
• the support arms 10,13 and 1 1, 12 are guided during displacement by a rivet 20 in the middle of the bracket 19, whereby the lateral recesses 1 1 a, 13a accounts.
• the collar 10b, 12b on the support arms 10, 12 are also no longer necessary.
• the support arm support head 11 and support arm-eye-down 13 are provided with guide recesses 21.
• the support arm-eye-down 13 is provided with two holes in the eye, s that you can lock the locking pins 14 in the collapsed state and down.
• Support arm-eye-top 10 and support arm-eye-down 13 are no longer tapered, but have parallel sides. Thus, the locking of the locking pins 14 in the collapsed state is possible.
• FIGS. 28 and 29 A further alternative embodiment of the locking elements can be taken from FIGS. 28 and 29.
• the bracket 19a, 19b is in two parts in this alternative embodiment. Furthermore, the brackets 19a, 19b are rigid, so that the locking pins 14 are translationally guided during locking and unlocking.
• the locking pins 14 additionally have magnets 23a, 23b which are magnetically attracted to the support arms 12, 11. conditions, so that unintentional unlocking of the support arms 12, 1 1, 10, 13 and a loss of the locking pins 14 is largely excluded.
• FIG. 1 An alternative embodiment of the guide tube is shown in FIG.
• the guide tube 3 is polygonal in the region of the inner wall 3a and executed in the region of the cross-member bearing side 6 round.
• the guide tube 3 has a slightly smaller diameter in the region of the traverse bearing side 6, so that the traverse bearing side 6 can be supported and the pinch 3c is dispensed with.
• the outer wall 3b is eliminated and is replaced with a disc 22 having a polygonal and inside a round bore on the circumference. It is welded to the guide tube 3, after the cross-beam bearing side 6, the collar sleeves and the ball bearing 4 are mounted.
• the Nietpressringe be replaced by the collar sleeves, since no deformation of the sleeve after mounting the guide tube 3 in the Traverse bearing side 6 is necessary.
• the collar sleeves are thus blocked, it is now only a minimal axial movement to the guide tube 3 possible, with which the guide tube 3 can rotate freely.
• the spindle (1) is used with the Spindelmit supportive 2 in the guide tube 3, in the Spindelauf perhaps 8, in particular a plastic nut, screwed in and then squeezed slightly at the end 1 a.
• the handwheel 5 which has a polygon on the circumference to allow the torque transfer, mounted and then slightly squeezed.
• the handwheel 5 has on the other side a hexagon for the wheel wrench, with which you can lift the jack by the rotation of the handwheel 5.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Geology (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
• Tents Or Canopies (AREA)
• Load-Engaging Elements For Cranes (AREA)
• Automatic Assembly (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=41092002

Family Applications (1)

Country Status (6)

Families Citing this family (14)

Family Cites Families (10)

• 2009
  • 2009-07-15 EP EP09780647A patent/EP2297021B1/fr active Active
  • 2009-07-15 AT AT09780647T patent/ATE551291T1/de active
  • 2009-07-15 US US13/054,157 patent/US8602391B2/en not_active Expired - Fee Related
  • 2009-07-15 CN CN200980125312.2A patent/CN102076597B/zh not_active Expired - Fee Related
  • 2009-07-15 ES ES09780647T patent/ES2384828T3/es active Active
  • 2009-07-15 WO PCT/EP2009/059083 patent/WO2010007104A1/fr not_active Ceased

Non-Patent Citations (1)

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