JPH0732377Y2 - Lifting device for small vessels - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is intended for landing a small boat, particularly a boat such as a motor boat for competition, with a screw protruding from the bottom of the boat, from the land to the water surface or from the water surface to the land. The present invention relates to an elevating device for a small boat that can be suitably implemented.

2. Description of the Related Art Conventionally, a small boat such as a motor boat used for competitions that protrudes from the bottom of a boat has been used to manually raise and lower it to the surface of a water such as a river or a pond. The work of landing a small vessel on the surface of the water or pulling it up to the ground without damaging the protruding screw is careful and requires a lot of manpower.

The purpose of the present invention is to raise and lower a small ship protruding from the bottom of the ship without damaging the manpower and lifting and lowering it to the water surface quickly and easily without damaging the screen. An object of the present invention is to provide an elevating device for a small boat that can be operated.

Means for Solving the Problems The present invention is a trolley for carrying a small boat, which is composed of a rectangular frame body and has both side support bodies on both side portions on a front frame body and a rear frame body. , A bogie main body with a hollow central part, and a plurality of shaft support bodies that are formed near the front end of the frame body of the bogie main body and that can stand upright on the upper surface and have different heights It has a front bottom plate having two front wheels on the lower surface, and a shaft support which is formed near the rear end of the frame body of the bogie body and can be erected and laid down on the upper surface. A bogie including a rear bottom plate having two rear wheels, guide supporting means for movably mounting the bogie, and a small vessel on the bogie mounted on the guide supporting means is lifted above the water surface. A first position and a second position in which the small boat floating on the water surface is separated from the carriage mounted on the guide supporting means. A lifting device for small vessels, comprising a lifting means for driving Niwata connexion displaced up and down.

According to the present invention, the bogie having a hollow central portion is supported by the front and rear shaft support members and the front, rear, left, and right side support members, and the screw is put in the hollow space to allow the small boat to move. Will be loaded. This dolly is moved by the wheels and is mounted on the guide support means in the first position. When the elevating means is driven, the guide supporting means on which the carriage is mounted descends from the first position to the second position, and during such descending operation, the small vessel on the carriage is on the water surface. When the screw which is in the state of being floated up and the guide supporting means is projected from the bottom of the small boat floating on the water surface reaches the second position separated from the trolley, the elevating means is stopped and the landing operation of the small boat is performed. Is completed. Further, when the elevating means is driven in a state where the guide supporting means on which the carriage is mounted is in the second position and a small boat floating above the water surface of the carriage is arranged, the guide supporting means is driven. Ascends from the second position to the first position, and the small boat floating on the water surface with the upward movement of the guide supporting means moves on the trolley with the screw in the cavity of the trolley. When the guide support means reaches the first position, the elevating means is stopped and the small boat is lifted from the water surface. In this way
A ship on a bogie that has been lifted from the surface of the water is placed on the bogie, moved from the guide supporting means by wheels, and transported to a storage location such as a hangar for storage.

Embodiment FIG. 1 is a sectional view showing the basic construction of an embodiment of the present invention. For example, an elevating device 3 according to the present invention is provided in a pit 2 where a small boat for competition, which is provided facing a pond or a river such as a competition place, arrives and departs. The lifting device 3 includes a carriage 5 on which the boat 4 is mounted, a guide support means 6 for movably mounting the carriage 5, and a lift for driving the guide support means 6 up and down in FIG. And means 7.

FIG. 2 is a plan view of the dolly 5 as seen from above in FIG. The pit 2 is sandwiched by jetties 9a and 9b protruding at equal intervals on the pond 8 side, and a boat 4 floating above the water surface 10 is mounted between these jetties 9a and 9b. Each jetty 9a, 9
A fender 11 made of a material having elasticity and flexibility such as rubber is attached to b, and the guide supporting means 6 is provided between the fenders 11 facing each other on each jetty 9a, 9b. As shown in FIG. 3, the boat 4 on the trolley 5 is at a first position P 1 above the water surface 10 and the boat 4 floating on the water surface 10.
Is driven up and down between the second position (indicated by the phantom line in FIG. 3) P2 at which the carriage 5 mounted on the guide supporting means 6 is separated from. Such a guide supporting means 6 has guide grooves 14 and 15 sandwiched by a pair of guide rails 12 and 13, respectively. At the end portions of the guide rails 12 and 13 on the revetment 16 side, the guide members 17 and 18 which are expanded toward the revetment 16;
19,20 are provided in pairs. The carriage 5 is guided into the guide grooves 14 and 15 by these guide members 17 to 20. In this way, when the carriage 5 is mounted on the guide support means 6 from the seawall 16, the riding surface 21 of the guide support means 6 and the surface 22 of the seawall 16 are substantially in one plane.

As shown in FIG. 4, the lifting device 3 having such a basic structure is arranged in the pit 2 between the jetties 9a, 9b, ... That is, the boat 4 stored in the hangar 23 provided in the lower part of FIG. 4 is mounted on the carriage 5 and conveyed to the guide supporting means 6, and the elevating device 3 is driven to drive the guide supporting means 6 Down to the second position P2 to bring the boat 4 on the carriage 5 to the water surface.
Can be landed on top of 10. Further, the guide supporting means 6
Can be raised to lift the boat 4 floating above the water surface 10 above the water surface 10, and the carriage 5 on the guide supporting means 6 in the first position can be transported and stored in the hangar 23. . By arranging the elevating device 3 for each pit 2 in this manner, it is possible to perform landing work or landing work while the boat 4 is mounted on the carriage 5 individually for each pit.

FIG. 5 shows the guide supporting means 6, the elevating means 7, and the hanging means 24.
It is a disassembled perspective view which simplifies and shows. The guide supporting means 6 is driven to be moved up and down between the first position P1 and the second position P2 by the elevating means 7, and the elevating means 7 is suspended in the pit 2 by the hanging means 24. Supported by.
The hanging means 24 is a locking member that locks on the jetty 9.
25 and a pair of hanging members 26 that are vertically connected to the locking member 25.
A bottom frame 27 that is vertically connected to the hanging member 26, a connecting member 28 that connects the hanging members 26 to each other, and a connecting member 28 that is provided on the connecting member 28 and extends between the hanging members 26. Material 11
And a mounting member 29 to which is mounted. The locking member 25 of such a hanging means 24 is shown in FIG. 6, FIG. 7 and FIG.
As shown in the figure, it is supported by the jetty 9,
The suspension means 24 as a whole is supported by the jetty 9 by the locking member 25. By using the suspending means 24 as described above, the lifting device 3 can be held at a fixed position even when the water bottom 30 shown in FIG. You don't have to expect durability. Each member that constitutes the suspension means 24 is made of, for example, an industrial rolled steel material, and its surface is subjected to rust prevention treatment such as zinc plating.

FIG. 9 is a plan view of the guide supporting means 6, and FIG.
FIG. 11 is a side view taken along arrow XX in the figure, and FIG. 11 is a sectional view taken along section line XI-XI in FIG. The above-mentioned guide groove
The guide rails 12 and 13 and the guide members 17 to 20 constituting the parts 14 and 15
Is a shape member such as L-shaped steel, and the guide rails 12 and 13 and the guide members 17 to 20 are L-shaped steel and the like fixed to the frame member 33 such as the L-shaped steel with a space. It is fixed on the reinforcing member 34. A plate member 35 made of steel is arranged in the guide groove 14, and a similar plate member 36 is provided in the expanding direction between the guide members 17, 18; 19, 20. It is provided. Further, between the outer frame member 37 and the outer guide rail 12, between the inner guide rail 12 and the guide rail 13, and on the other outer guide rail 13.
Between the outer frame member 38 and the outer frame member 38, a draining member 40 having a large number of draining holes 39 called grating shown in FIG. 12 is provided. Such a draining member 40 is constituted by a vertical frame member 41 and a horizontal frame member 42, which are framed in a checkerboard pattern at equal intervals. By using such a draining member 40, it is possible to reduce the water resistance when the guide supporting means 6 is displaced across the first position P1 and the second position P2.

Referring again to FIG. 3, the guide supporting means 6 having the above-described configuration is vertically displaced by the elevating means 7. The elevating means 7 is provided with a pair of levers 43 and 44, and these levers 43 and 44 are pin-coupled by a pin 45 near the longitudinal center position. The base end of the lever 43 is pin-connected to the bottom frame 27 of the suspending means 24 by a pin 46, and the other end of the lever 43 is provided with a roller 47. This roller 47
Is the draining member of the guide supporting means 6 as shown in FIG.
It is movable along a rail 48 provided on the lower surface of 40. The base end of the other lever 44 is pin-connected to the outer frame member 50 of the guide supporting means 6 by a pin 49, and a roller 51 is provided at the other end of the lever 44. This roller 51
Are movable along rails 52 of the bottom frame 27 as shown in FIG. The lever 44 is provided with a stainless steel hydraulic cylinder S that can be angularly displaced about the axis of the pin 53 by the pin 53, and the tip end portion of the piston rod 54 of the hydraulic cylinder S is attached by the pin 55 to the attachment piece 56. Is pin-coupled to. The attachment piece 56 is fixed to the lever 44 by welding or the like. The pin 53 is pin-connected to the mounting piece 57, and the mounting piece 57 is fixed to the lever 44 by welding or the like.

Since the roller 51 is always placed in water, in order to prevent floating substances such as dust or shells in the water from adhering,
It is covered by a cover body 60 shown in FIGS. 15 and 16. The end surfaces 61, 62 of the cover body 60 on one side in the axial direction of the roller 51 are in sliding contact with the inner surface 63 of the rail 52, whereby a shell attached to the surface 63 of the rail 52. Floats such as can be removed. Further, the lower end surface 64 of the cover body 60 is in sliding contact with the upper surface 65 of the rail 52, which also makes it possible to remove suspended matters such as shells attached to the surface 65. By these end faces 61, 62, 64, the floating substances are always kept on the surfaces 63, 65 of the rail 52 so that the rollers 51 can smoothly move along the rail 52.

FIG. 17 is a sectional view of the carriage 5, FIG. 18 is a front view of the carriage 5, and FIG. 19 is a plan view of the carriage 5. The trolley | bogie 5 is comprised from the trolley | bogie main body 70, the front bottom plate 77, and the rear bottom plate 84.

Front wheels 71 and 72 are arranged on the lower surface of the front bottom plate 77, and rear wheels 73 and 74 are arranged on the rear bottom plate 84. Front wheels 71,72
Is rotatable about each axis of rotation and also rotatable about a vertical axis. Further, the rear wheels 73, 74 are fixedly attached to the rear bottom plate 84 while being rotatable about their respective rotation axes and being prevented from rotating about a vertical axis straight line. The front wheels 71 and 72 each have a built-in stopper, and by operating the levers 75 and 76, rotation of each of the wheels 71 and 72 around each rotation axis is blocked. .

On the upper surface of the front bottom plate 77, support pieces 78 and 79 of different lengths for supporting the axial center of the front ship bottom of the boat 4 are angularly displaceable around each axis of the shafts 80 and 81, that is, stand upright, It is installed so that it can be laid down. At the tip of each of the support pieces 78, 79, a cushion material made of a flexible and elastic material such as rubber is provided to form shaft support bodies 82, 83. Further, on the upper surface of the rear bottom plate 84, a support piece 85 for supporting the axial center portion of the rear ship bottom of the boat 4 is provided so as to be angularly displaceable around the axis of the shaft 86, that is, to be erected and upright. At the tip of the support piece 85, a cushion material made of a flexible and elastic material such as rubber is provided to form the shaft support 87. Both side support members 88 to 91 having the same cushioning material as the shaft support members 82, 83, 87 are also provided on the left and right side portions of the frame members 92, 93 provided at the front and rear ends of the main body 70. The
Both side supports 88 to 91 are formed. The boat 4 includes a shaft support 82, 83 standing upright on the front bottom plate 77, a shaft support 87 standing upright on the rear bottom plate 84, and four side supports 88-91 on both sides of the boat 4a. Supported without damage to. Further, the shaft support members 82, 83 of the front bottom plate 77 support the rising height of the shaft support members 82, 83 more than the support piece 78 in a state where the support members 78, 79 are erected vertically to the front bottom plate 77. The piece 79 is formed higher by L1. The size of the boat 4 determines which shank support provided on the front bottom plate 77 will be used. In the state where the boat 4 is mounted on the shaft support 82 or 83 provided on the front bottom plate 77 and the shaft support 87 provided on the rear bottom plate 84,
As shown in the figure, the bottom surface 4a of the boat 4 is inclined by an angle θ with respect to the horizontal plane, and this angle θ is selected to be, for example, about 10 degrees. In this way, the boat 4 tilted at an angle θ lands on the water surface 10 stably from the stern side as the guide supporting means 6 descends by the elevating means 7. You can

Between the portion where the front bottom plate 77 is provided and the portion where the rear bottom plate 84 is provided, the trolley body 70 has only a frame 69 on both sides and forms a cavity 70a at the center. The screen 114 protruding from the bottom 4a of the boat 4 enters here. Frame bodies 92a, 93a are provided near the lower central portions of the frame bodies 92, 93 that support the side support bodies 88-91. This is to prevent the shaft center portion of the bottom 4a of the boat 4 from coming into contact with the frame bodies 92 and 93 when they extend to the central portion. As a result, the carriage main body 70 is formed in a rectangular shape by the side frame body 69, the front frame bodies 92 and 92a, and the rear frame bodies 93 and 93a.

FIG. 21 is a side view of the driving means 93, and FIG. 22 is a driving means.
FIG. 23 is a front view of 93, and FIG. 23 is a hydraulic circuit diagram for explaining the internal configuration of the drive means 93. The drive means 93 is provided with a pump 94 driven by a motor M, and the oil in the tank 95 is pumped to the pipeline 96 by this pump 94. A check valve 97 is provided in the pipeline 96, and a connection port 98 is provided at an end of the pipeline 96 via the check valve 97. A pressure gauge 99 is also connected to the pipe 96, and the pressure of the pressure oil sent from the pump 94 to the pipe 96 is measured and displayed. The check valve in line 96
A pipe 100 is branched and connected between 97 and the connection port 98. A two-position switching solenoid valve 102 is provided in the conduit 100 via an orifice 101. This solenoid valve 102 is in the first position 10
When it is in 2a, the pipeline 100 is blocked, when it is in the second position 102b, the pipeline 101 communicates with the downstream pipeline 103, and the oil from the pipeline 100 passes through the pipeline 103 and the strainer 104 to the tank. Returned to within 105. Further, a pipe 105 is branched and connected between the pump 94 and the check valve 97 of the pipe 106,
The pipe 105 is provided with a safety valve 106, and when the pressure in the pipe 106 becomes higher than a predetermined pressure, the safety valve 106 is provided.
Therefore, the pipeline 105 and the pipeline 107 communicate with each other and the strainer 108 is connected.
Is returned to the tank 95 via.

As shown in FIG. 24, the drive means 93 having such a structure are arranged in pairs on a base 110 on a pillar 109 which is erected on the jetty 9 (see FIG. 2). The pressure oil is sent under pressure by the driving means 93 to the cylinder S provided in the lifting device 3 arranged on the pits 2 on both sides of the jetty 9.

A switch SW is provided on the column 109 in correspondence with each drive means 93. This switch SW has, for example, three push buttons 11
1a, 111b, 111c are provided, and by pressing these push buttons 111a to 111c, the guide support means 6 of the lifting device 3 can be displaced up and down. That is, when the ascending push button 111a is pressed, the electromagnetic valve 102 of the driving means 93 is switched to the first position 102a and the conduit 100 is closed, and the pump 94 pressurizes oil to the connection port 98 via the check valve 97. Is supplied. One end of a flexible conduit 112 is connected to the connection port 98, and the other end of the flexible conduit 112 is connected to the cylinder S. Therefore, the pressure oil is supplied to the cylinder S via the pipe 112 to extend the piston rod 54, whereby the guide supporting means 6 is provided.
Rises. When the push button 111b is pressed, the solenoid valve 102
Is stopped at the first position 102a, the motor M is stopped, the pump 94 is stopped, and the supply of pressure oil to the cylinder S is stopped. As a result, the guide support means 6 remains stopped at a fixed position. When the push button 111c is further pressed, the electromagnetic valve 102 is switched from the first position 102a to the second position 102b, and the oil on the downstream side in the pressure oil supply direction from the check valve 97 passes through the conduit 103 to the tank 9
Returned to within 5. As a result, the oil in the piston chamber of the cylinder S is depressurized and the guide support means 6 descends.

As shown in FIG. 25, the height of the guide supporting means 6 which is driven to move up and down in this way is as shown in FIG.
It can be visually recognized by the position of the weight 113 attached to, for example. Therefore, as shown in FIG. 26 (1), when the boat 4 enters the pit 2, the weight 113 moves to the 25th position.
If in the raised position shown by the solid line in the figure, the guide support means 6
Can be confirmed to be located at the second position P2 which is the lower limit position, and the screw 145 or the like of the boat 4 does not come into contact with the carriage 5 on the guide supporting means 6. Further, as shown in FIG. 26 (2), the guide supporting means 6 is the first
Even when the guide supporting means 6 descends from the position of No. 1 to land the boat 4, the weight 113 is confirmed by confirming that the weight 113 is at the upper position.
It can be seen that 4 is sufficiently separated that it does not contact the dolly 5.

As described above, the lifting device 3 according to the present invention is provided for each of the plurality of pits 2, and the boat 4 can be individually landed or landed, and such work can be performed quickly and reliably. become able to.

Effect of the Invention According to the present invention, a small vessel such as a competition boat with a screw protruding from the bottom of the boat is mounted on a truck and transported on land with the screw inserted in the cavity in the center of the truck. It can be mounted on the guide supporting means at substantially the same height as the revetment, and in this state, the guide supporting means can be displaced up and down by the elevating means. In addition, a small boat floating on the water surface can be mounted on a bogie, and the bogie can be lifted to approximately the same height as the revetment. This makes it possible to easily and quickly carry out the landing and landing of the small vessel without damaging the screw of the small vessel.

Further, since the lifting device of the present invention is individually provided for each pit, the small boat is individually floated on the water surface,
Alternatively, it can be placed at a position above the surface of the water in a state of floating on the surface of the water, and convenience is improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing the basic construction of an embodiment of the present invention,
2 is a plan view of the dolly 5 as seen from above in FIG. 1, FIG. 3 is a cross-sectional view taken along section line III-III of FIG. 1, and FIG. Lifting device 3 provided
FIG. 5 is an exploded perspective view showing in simplified form the guide supporting means 6, the elevating means 7, and the hanging means 24. FIG. 6 is a plan view of a part of the jetty 9, 6 is a sectional view taken along section line VII-VII in FIG. 6, FIG. 8 is a sectional view taken along section line VII-VII in FIG. 6, and FIG. 9 is a plan view of guide supporting means 6. 10 is a side view taken along the line XX of FIG. 9, and FIG. 11 is a cross-sectional view taken along the section line XI-XI of FIG.
12 is a perspective view of the draining member 40, FIG. 13 is an enlarged sectional view near the roller 47, FIG. 14 is an enlarged sectional view near the roller 51,
FIG. 15 is an enlarged sectional view of the cover body 60, FIG. 16 is a side view of the cover body 60 seen from above in FIG. 15, FIG. 17 is a sectional view of the truck 5, and FIG. 18 is a front view of the truck 5. , Fig. 19 shows the truck 5
FIG. 20 is a cross-sectional view showing a state where the boat 4 is mounted on the carriage 5. FIG. 21 is a side view of the driving means 93. FIG. 22 is a front view of the driving means 93. FIG. 24 is a hydraulic circuit diagram for explaining the internal structure of the drive means 93, FIG. 24 is a front view of the vicinity of the column 109 supporting the drive means 93, FIG. 25 is a front view showing the weight 113, and FIG. 26 is a guide support. FIG. 9 is a simplified cross-sectional view for explaining the operation of means 6. 2 ... pit, 3 ... elevator, 4 ... boat, 5 ...
Cart, 6 ... Guide support means, 7 ... Lifting means, 77 ... Front bottom plate, 82, 83, 87 ... Shaft support, 84 ... Rear bottom plate, 88
〜91 …… Both side support, 93 …… Driving means, P1 …… First position, P2 …… Second position

Claims (1)

[Scope of utility model registration request] 1. A trolley for carrying a small boat, comprising a rectangular frame, having both side supports on both sides of the front frame and the rear frame, and having a hollow central part. It has a dolly truck main body and a plurality of shaft support bodies which are formed in the vicinity of the front end of the frame body of the truck main body and which can be erected and laid down at different heights when erected on the upper surface. Front bottom plate having a number of front wheels, and a shaft support that is formed near the rear end of the frame of the trolley body and that can be erected and laid down on the top surface, and two rear wheels on the bottom surface. A trolley including a rear bottom plate having the trolley, guide supporting means for movably mounting the trolley, and a first position where the small boat on the trolley mounted on the guide supporting means is lifted above the water surface. , A small boat floating on the surface of water moves up and down across a second position separated from the carriage mounted on the guide supporting means. Lifting device of small vessels, comprising a lifting means for.