Carriage for vehicle

Abstract

To provide a carriage for a vehicle which can adjust a product name such as a tire and a wheel to optimal position by rotating the tire optionally.SOLUTION: A carriage 10 for a vehicle can move the vehicle as it is by jacking up a wheel X and a tire Y which are mounted to the vehicle by a first roller 15 and a second roller 16 which bring into close contact with each other. It is configured so that a first gear 17 is provided on one end of the second roller 16 and that a rotational shaft 19 which comprises a second gear 18 meshed with the first gear 17 is provided.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to an automobile dolly for jacking up the wheels and tires attached to an automobile and moving the automobile as it is, and for rotating the tires as it is. [Background technology]

[0002] As a conventional technique, there is a device comprising a cylindrical first frame and a second frame each having an opening on a portion of an upper surface thereof, the second frame being slidably mounted within the first frame, a third frame vertically connected to one end of the first frame, a fourth frame vertically connected to the other end of the second frame, a first roller mounted on the third frame, a second roller mounted on the fourth frame, casters mounted on both ends of each of the third and fourth frames, and an actuator for a ratchet mechanism comprising a vertically movable lever and a rack having a first claw and a second claw for allowing the first roller and the second roller to move toward and away from each other, the first claw and the second claw of the lever being a first claw and a second claw of the second claw. There is an automobile dolly in which a first claw is provided at the other end of the frame, and a rack is provided on the upper surface of the second frame, and by moving the lever up and down, the first claw engages with the rack of the second frame through the opening in the first frame, extending the second frame towards the first frame and moving the second frame a predetermined distance within the first frame, bringing the first roller and second roller closer to each other, and at the same time, the second claw engages with the rack of the second frame through the opening in the first frame and fixes the positions of the first frame and the second frame, thereby jacking the wheels and tires attached to an automobile with the first roller and second roller and moving the automobile in that state (see, for example, Patent Document 1).

[0003] Another prior art technique is a hydraulic mechanism actuator that includes a first cylindrical frame and a second cylindrical frame, the second frame being slidably mounted within the first frame, a third frame vertically connected to the first frame, a fourth frame vertically connected to one end of the second frame, a first roller mounted on the third frame, a second roller mounted on the fourth frame, casters mounted on both ends of each of the third and fourth frames, a lever that can move up and down to allow the first roller and the second roller to move toward and away from each other, a pump that is actuated by the up and down movement of the lever, and a cylinder that is actuated by the pump. There is an automobile dolly that has a lever and a pump attached to a first frame, and a cylinder connected vertically between a third frame and a fourth frame or between the first frame and a second frame, and by moving the lever up and down, the pump and the cylinder are operated, and the second frame is moved a predetermined distance within the first frame, the first roller and the second roller are brought closer to each other, and the positions of the first frame and the second frame are fixed, thereby jacking the wheel and tire attached to the automobile with the first roller and the second roller, and moving the automobile in that state (for example, see Non-Patent Document 1).

[0004] Prior art car dollies allowed a car to be easily and smoothly moved to a desired destination even in small spaces such as showrooms, repair garages, dealerships, and parking facilities by jacking up all four wheels and tires attached to the car.

[0005] However, there was a problem that, for example, at an exhibition hall or a dealership, in order to improve the appearance of the product name of a tire or wheel for sales promotion purposes, the tire could not be rotated as desired to align the product name of the tire or wheel in an optimal position. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2-8199 [Non-patent literature]

[0007] [Non-Patent Document 1] Kobayashi Denso Co., Ltd., KiKAiYA, Hydraulic Car Dolly Instruction Manual, Part Number HDO-4, Received on October 10, 2023 Summary of the Invention [Problem to be solved by the invention]

[0008] To solve the above problems, the present invention provides an automobile dolly for jacking up the wheels and tires attached to an automobile and moving the automobile as is, which allows the tires to be rotated as desired and allows the product names of the tires and wheels to be easily aligned to the optimal positions. [Means for solving the problem]

[0009] The first means for solving the problem of the present invention comprises a cylindrical first frame with an opening on a part of the upper surface, a second frame, a third frame, the second frame being slidably provided within the first frame, connected vertically to the first frame, a fourth frame connected vertically to the second frame, a first roller rotatably provided on the third frame, a second roller rotatably provided on the fourth frame, casters provided on both ends of each of the third and fourth frames, and an actuator of a ratchet mechanism consisting of a lever and a rack that can move up and down and has a first claw and a second claw to allow the first roller and the second roller to move toward and away from each other, the lever, the first claw and the second claw being provided on the first frame, and the rack being attached to the second frame. This automobile dolly has a lever provided on the top surface, and by moving the lever up and down, a first claw engages with a rack of the second frame through the opening in the first frame, extending the second frame toward the first frame and moving the second frame a predetermined distance within the first frame, and at the same time, a second claw engages with the rack of the second frame through the opening in the first frame and fixes the positions of the first frame and the second frame, bringing the first roller and the second roller closer to each other, jacking the wheels and tires attached to the automobile with the first roller and the second roller, and moving the automobile in that state.A first gear is provided on one end of either the first roller or the second roller, and a rotating shaft with a second gear that meshes with the first gear is provided.

[0010] The second means for solving the problem of the present invention includes a first cylindrical frame, a second frame, the second frame being slidably provided within the first frame, a third frame vertically connected to the first frame, a fourth frame vertically connected to the second frame, a first roller rotatably provided on the third frame, a second roller rotatably provided on the fourth frame, casters provided on both ends of each of the third and fourth frames, and an actuator of a hydraulic mechanism including a lever that can move up and down to allow the first roller and the second roller to move toward and away from each other, a pump that is operated by the up and down movement of the lever, and a cylinder that is operated by the pump, is provided on a first frame, and a cylinder is provided in an appropriate location so that the first roller and the second roller can move toward and away from each other. By moving a lever up and down, the pump and cylinder are operated and the second frame is moved a predetermined distance within the first frame. The positions of the first frame and the second frame are fixed to bring the first roller and the second roller closer to each other, and the wheels and tires attached to the automobile are jacked by the first roller and the second roller, and the automobile is moved in that state. A first gear is provided on one end of either the first roller or the second roller, and a rotating shaft with a second gear that meshes with the first gear is provided. Effect of the Invention

[0011] The solution to the problem of the present invention is to rotate a rotating shaft, which may optionally have a second gear, thereby rotating the second gear, thereby rotating a first gear provided at one end of either the first roller or the second roller, which meshes with the second gear, and thereby rotating either the first roller or the second roller. By rotating either the first roller or the second roller, the tire that has been jacked by the first roller and the second roller that are close to each other can be caused to rotate as it is.

[0012] Therefore, for example, at an exhibition hall or a dealership, when all four wheels (tires and wheels) attached to an automobile can be jacked up and the automobile can be moved as is, the tires can be rotated as desired to easily align the product names of the tires and wheels to the optimal position in order to improve the appearance of the product names of the tires and wheels for sales promotion purposes. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of an automobile bogie according to the present invention. [Diagram 2] FIG. 2 is another perspective view of the automobile dolly of the present invention. [Diagram 3] FIG. 4 is a perspective view of yet another embodiment of the automobile dolly of the present invention. [Figure 4] FIG. 2 is a partially enlarged perspective view of the automobile bogie of the present invention. [Diagram 5] FIG. 2 is a perspective view of the automobile dolly of the present invention when in use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] An automobile dolly 10 of the present invention will be described (see Figs. 1 to 5).

[0015] The automobile dolly 10 of the present invention mainly comprises a first frame 11, a second frame 12, a third frame 13, a fourth frame 14, a first roller 15, a second roller 16, an actuator of a ratchet mechanism, a first gear 17, a second gear 18, and a rotating shaft 19.

[0016] The first frame 11 is made of a cylindrical square pipe having an opening 20 on part of the upper surface at the other end. A handle 34 is attached to the first frame 11 to facilitate moving the car dolly 10. The first frame 11 may be any cylindrical member and is not limited to a square pipe.

[0017] The second frame 12 is made of a cylindrical square pipe that is one size smaller than the first frame 11 so as to be slidable within the first frame 11 . The second frame 12 may be any type that is slidable within the first frame 11, and is not limited to a cylindrical square pipe. Moreover, the first frame 11 and the second frame 12 are connected to each other in a straight line.

[0018] The third frame 13 is vertically connected to one end of the first frame 11 . The fourth frame 14 is vertically connected to the other end of the second frame 12 . The third frame and the fourth frame 14 are provided in parallel.

[0019] The third frame 13 is not limited to being connected to one end of the first frame 11, and may be connected to any suitable location. The fourth frame 14 is not limited to being connected to the other end of the second frame 12, and may be connected to any suitable location.

[0020] The first roller 15 is rotatably attached to the third frame 13 via a shaft. The second roller 16 is rotatably attached to the fourth frame 14 via a shaft. The first roller 15 and the second roller 16 are provided in parallel.

[0021] The third frame 13 and the fourth frame 14 each have casters attached to both ends. This allows the automobile dolly 10 to move freely horizontally in all directions.

[0022] The actuator of the ratchet mechanism is a known mechanism, and is used to move the first roller 15 and the second roller 16 toward and away from each other.

[0023] The actuator of the ratchet mechanism mainly comprises a lever 23 having a foot pedal 22 at its upper end for stepping on with the foot, a first claw 24, a second claw 25, and a rack 26 provided on the upper surface of the second frame 12.

[0024] The lever 23 is attached at its lower end in an inclined state to a mounting member 30 consisting of a pair of triangular pieces provided on both sides of the opening 20 on the upper surface of the other end of the first frame 11 so as to be freely rotatable vertically via a pin. Furthermore, the lever 23 is attached to the upper surface of the other end of the first frame 11 via a spring 27 .

[0025] Therefore, lever 23 is provided so as to be movable up and down relative to the upper surface of first frame 11 by utilizing the elastic force of spring 27 . Therefore, by stepping on the foot pedal 22 with the foot, the lever 23 can be moved up and down relative to the upper surface of the first frame 11. It should be noted that the lever 23 and the opening 20 are not limited to being provided at the other end of the first frame 11, and may be provided at any appropriate location.

[0026] The first claw 24 and the second claw 25 are intended to mesh with a rack 26 . The first claw 24 is adapted to engage with a rack 26 to advance the second frame 12 towards the first frame 11 .

[0027] The second claw 25 is engaged with the rack 26 to fix the positions of the first frame 11 and the second frame 12 so as to prevent the second frame 12 from moving backwards. The first claw 24 and the second claw 25 are attached to the lower end of the lever 23 at a fixed distance from each other, facing downward, via a pin so as to be freely rotatable in the vertical direction while utilizing the elastic force of a spring.

[0028] A pawl lever 28 is attached via a leaf spring 29 to the upper surface of the lower end of lever 23 above first pawl 24 and second pawl 25 . A part of each of the upper ends of the first claw 24 and the second claw 25 is abutted against a leaf spring 29, and the elastic force of another spring is utilized so that each of the lower ends of the first claw 24 and the second claw 25 can freely move up and down.

[0029] Therefore, when the claw lever 28 is tilted upward, the lower side of the leaf spring 29 rises slightly, and as a result, part of the upper ends of the first claw 24 and the second claw 25 rise and the lower ends of the first claw 24 and the second claw 25 fall, so that they engage with the rack 26.

[0030] Furthermore, when the claw lever 28 is tilted downward, the claw lever 28 prevents the lower side of the leaf spring 29 from floating up, and as a result, a portion of the upper ends of each of the first claw 24 and the second claw 25 lowers and the lower ends of each of the first claw 24 and the second claw 25 rises, and they become separated from the rack 26.

[0031] Therefore, by repeatedly moving the lever 23 up and down, the first claw 24 engages with the rack 26 of the second frame 12 through the opening 20 of the first frame 11, moving the second frame 12 a predetermined distance within the first frame 11, and at the same time, the second claw 25 engages with the rack 26 of the second frame 12 through the opening 20 of the first frame 11, fixing the positions of the first frame 11 and the second frame 12. Therefore, the first roller 15 and the second roller 16 can be brought closer to each other.

[0032] The actuator for moving the first roller 15 and the second roller 16 toward and away from each other is not limited to the ratchet mechanism. For example, a known hydraulic mechanism (not shown) may be used that is mainly composed of a lever, a pump that is actuated by the up and down movement of the lever via a spring, and a cylinder that is actuated by the pump. In this case, the lever and the pump provided via the lever and the spring are provided at the other end, one end, or an appropriate location of the first frame 11 so as to be movable up and down.

[0033] The cylinder is connected to a pump and is provided at an appropriate location so that the first roller 15 and the second roller 16 can move toward and away from each other. For example, the connection may be made vertically between the third frame 13 and the fourth frame 14, or between the first frame 11 and the second frame 12, but is not limited to these connections.

[0034] Therefore, by repeatedly moving the lever up and down, the pump and cylinder can be operated, the second frame 12 can be moved a predetermined distance within the first frame 11, and the positions of the first frame 11 and the second frame 12 can be fixed. Therefore, the first roller 15 and the second roller 16 can be brought closer to each other.

[0035] The first gear 17 is provided on one end of the second roller 16 so as to be rotatable in synchronization with the rotation of the second roller 16 . The second gear 18 has one end of a rotating shaft 19 attached to its center, and is provided rotatably so as to mesh with the first gear 17 . The rotating shaft 19 is rotatably mounted via a bearing unit 31 fixed to one end of the fourth frame 14 .

[0036] By rotating the rotary shaft 19, the second gear 18 can be rotated, the first gear 17 meshing with the second gear 18 can be rotated, and the second roller 16 can be rotated. The rotating shaft 19 can be rotated in either a clockwise or counterclockwise direction, and as a result, the second roller 16 can be rotated in either a clockwise or counterclockwise direction.

[0037] The circumferential surface of the other end of the rotating shaft 19 is angular to facilitate rotation. In addition, it is desirable to use a rod-shaped handle 32 with a socket 33 at its tip as a tool for rotating the shaft 19, attach the socket 33 to the other end of the shaft 19, and rotate the rod-shaped handle 32 to easily rotate the shaft 19.

[0038] The circumferential surface of the other end of the rotating shaft 19 is not limited to being angular. Furthermore, the tool for rotating is not limited to the rod-shaped handle 32 having the socket 33 at the tip, and the rotating shaft 19 may be rotated directly.

[0039] Alternatively, the first gear 17 may be attached to one end of the first roller 15 so as to be freely rotatable in synchronization with the rotation of the first roller 15, a second gear 18 may be rotatably provided so as to mesh with the first gear 17, and a rotating shaft 19 attached to the second gear 18 may be rotatably provided.

[0040] Next, the operation of the cart 10 of the present invention will be described (see Figs. 1 to 5).

[0041] First, the claw lever 28 is tilted downward, and the foot pedal 22 is stepped on once with the foot to move the lever 23 up and down, thereby releasing the first claw 24 and the second claw 25 from their engagement with the rack 26. Then, the first roller 15 and the second roller 16 can be separated from each other, and the distance between them can be increased to any desired value.

[0042] Then, the first roller 15 and the second roller 16 are separated from each other and spread apart to sandwich the tire Y between the wheel X and the tire Y attached to the automobile. At this time, the automobile dolly 10 is disposed so that the first frame 11 and the second frame 12 are parallel to the outer side surface of the tire Y.

[0043] Then, the claw lever 28 is tilted upward to engage the first claw 24 and the second claw 25 with the rack 26, and the foot pedal 22 is stepped on to move the lever 23 up and down.

[0044] Then, by repeatedly moving the lever 23 up and down, the first claw 24 engages with the rack 26 of the second frame 12 through the opening 20 of the first frame 11, extending the second frame 12 toward the first frame 11 and moving the second frame 12 a predetermined distance within the first frame 11.

[0045] At the same time, the second claw 24 engages with the rack 26 of the second frame 12 through the opening 20 of the first frame 11, fixing the positions of the first frame 11 and the second frame 12. As a result, the second roller 16 moves toward the first roller 15, and the first roller 15 and the second roller 16 come closer to each other.

[0046] Then, the first roller 15 and the second roller 16 press against each other from both sides with the lower end of the tire Y between them, pushing up the lower end of the tire Y, and jacking up the wheel X and tire Y attached to the automobile to a desired height.

[0047] Then, the up and down movement of the lever 23 is stopped, and while the wheel X and the tire Y attached to the automobile are still being jacked, the socket 33 provided at the tip of the rod-shaped handle 32 is attached to the other end of the rotating shaft 19, and the rod-shaped handle 32 is operated to rotate, thereby rotating the rotating shaft 19.

[0048] Then, by rotating the rotating shaft 19, the second gear 18 attached to one end of the rotating shaft 19 is rotated, which in turn rotates the first gear 17 meshing with the second gear 18, thereby rotating the second roller 16. Then, by rotating the second roller 16, the wheel X and tire Y attached to the jacked automobile are rotated in a direction opposite to the direction of rotation of the second roller 16.

[0049] At this time, the first roller 15 is rotated in the same direction as the second roller 16 by the rotation of the tire Y pressing against the first roller 15. Then, tire Y is rotated until product name "ABC" 35 on wheel X, which was at an angle, looks good, and product name "ABC" 35 on wheel X is horizontally aligned.

[0050] Then, the rotation of the rotating shaft 19 is stopped, and the socket 33 provided at the tip of the rod-shaped handle 32 is removed from the other end of the rotating shaft 19. Then, the above process is completed for each of the four wheels X and tires Y attached to the car. If the user wishes to continue moving the vehicle, the user simply pushes the vehicle by hand to the desired destination.

[0051] After the car has been moved to the desired destination, the tire Y may be rotated until the product name "ABC" 35 on the wheel X, which was previously at an angle, looks good, and the product name "ABC" 35 on the wheel X may be horizontally aligned.

[0052] Furthermore, the technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. [Explanation of symbols]

[0053] 10 Car dolly 11 First Frame 12 Second Frame 13 The Third Frame 14 The Fourth Frame 15 First Roller 16 The Second Roller 17 First Gear 18 Second Gear 19 Rotational Axis 20 Opening 21 Caster 22 Foot Pedal 23 Lever 24 First Claw 25 Second Claw 26 Rack 27 Spring 28 Claw lever 29 Leaf Spring 30 Mounting material 31 Bearing unit 32 Rod-shaped handle 33 Socket 34 Handle 35 Product name X-Wheel Y-tire

Claims

1. a cylindrical first frame having an opening in a portion of an upper surface thereof; A second frame; a second frame is slidably disposed within the first frame; a third frame vertically coupled to the first frame; a fourth frame vertically coupled to the second frame; a first roller rotatably mounted on a third frame; a second roller rotatably mounted on the fourth frame; Casters provided on both ends of each of the third frame and the fourth frame; an actuator for a ratchet mechanism including a lever and a rack that are movable up and down and have a first pawl and a second pawl for allowing the first roller and the second roller to move toward and away from each other; the lever, the first claw and the second claw are provided on the first frame, The rack is provided on the upper surface of the second frame, a car dolly for moving the lever up and down, whereby a first claw engages with a rack of a second frame through an opening in the first frame, advancing the second frame towards the first frame and moving the second frame a predetermined distance into the first frame, and at the same time, a second claw engages with a rack of the second frame through the opening in the first frame and fixes the positions of the first frame and the second frame, bringing the first roller and the second roller closer to each other, jacking the wheels and tires attached to the automobile with the first roller and the second roller, and moving the automobile in that state; a first gear is provided at one end of either the first roller or the second roller; A rotating shaft is provided with a second gear that meshes with the first gear.

2. A cylindrical first frame; A second frame; a second frame is slidably disposed within the first frame; a third frame vertically coupled to the first frame; a fourth frame vertically coupled to the second frame; a first roller rotatably mounted on a third frame; a second roller rotatably mounted on the fourth frame; Casters provided on both ends of each of the third frame and the fourth frame; a hydraulic actuator including a lever that can move up and down to move the first roller and the second roller toward and away from each other, a pump that is actuated by the up and down movement of the lever, and a cylinder that is actuated by the pump; The lever and the pump are provided on a first frame, the cylinder is provided at an appropriate location so that the first roller and the second roller can move toward and away from each other; A car dolly for moving the car in this state by moving a lever up and down to operate a pump and a cylinder, moving a second frame a predetermined distance within a first frame, and fixing the positions of the first frame and the second frame to bring a first roller and a second roller closer to each other, jacking a wheel and a tire attached to an automobile with the first roller and the second roller, and moving the automobile in this state, a first gear is provided at one end of either the first roller or the second roller; A rotating shaft is provided with a second gear that meshes with the first gear.

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