JPH0589007U - Trolley for tire mounting - Google Patents

Abstract

(57) [Summary] [Objective] The present invention enables smooth and agile traveling movement, and assists the weight of the tire during tire removal, transportation, and assembly, eliminating heavy-duty work and increasing the tire assembly height. Provided is a truck for mounting a tire, in which the position of the hub bolt can be easily and freely adjusted and the workability of assembling the tire is improved. [Structure] A free bearing 2 is attached to a lower surface of a base 1, a guide frame 4 is erected on the base 1, and a tire pedestal 6 is guided so that the tire pedestal 6 can be lifted and lowered. A base roller 9 for supporting the lower part of the outer peripheral surface of the tire, a side roller 11 for supporting the sidewall of the tire, and a center hook 13 for engaging and disengaging with the wheel of the tire are installed, and the tire pedestal 6 is balanced according to the weight of the tire 8. And a cylinder 7 for raising and lowering the tire pedestal for moving up and down,
A center hook operating cylinder 14 for engaging and disengaging the center hook 13 with a wheel of a tire, a base moving handle 15 fixed to the base 1, and a fluid pressure control device are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tire mounting carriage for transporting and mounting a tire on a hub of a vehicle.

[0002]

[Prior Art]

 In an automobile assembly line, a tire mounting device that automatically mounts a tire on a hub is used. However, a tire mounting trolley is used to support the tire and manually move it to mount it.

As disclosed in Japanese Utility Model Application Laid-Open No. 62-10102, for example, this tire mounting trolley has a guide frame which is erected on a movable movable frame having wheels mounted on the lower end thereof. A tire lifting guide is attached to the frame so as to be lifted, and a rotatable tire support arm is provided at the lower end of the tire lifting guide with a space on the open end side of the movable frame.

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional tire mounting bogie, since it is a traveling means using wheels, the ground contact area between the wheels and the floor is large, and it is difficult to make a quick and free direction change. Further, the tire lifting guide is moved up and down by operating the manual handle, and therefore, the adjustment of the vertical position of the tire requires a troublesome work of operating the manual handle each time.

Further, since the tire supported by the tire support arm is in an oblique posture, when mounting the tire on the vehicle, use both hands to rotate the tire and align the hub bolt hole of the wheel with the hub bolt. There is a problem that the tire cannot be turned without holding it.

An object of the present invention is to provide a tire mounting carriage that solves the above-mentioned conventional problems.

[0007]

[Means for Solving the Problems]

 The gist of the present invention for achieving the above object is to provide a movable base having a free bearing attached to a lower surface thereof, and a tire receiving base guided up and down by a guide frame erected on the base. A base roller installed on the tire pedestal that supports the lower portion of the outer peripheral surface of the tire, a side roller that supports the sidewall of the tire, and a center hook that engages and disengages with the wheel of the tire; A cylinder for lifting and lowering a tire pedestal that balances and moves up and down according to weight, a cylinder for operating a center hook that engages and disengages the center hook with a wheel of a tire, and a handle for moving a base that is fixed to the base. And a fluid pressure control device for the cylinder for lifting the tire pedestal and the cylinder for operating the center hook.

[0008]

[Action]

 With the above configuration, the base is in so-called point contact with the floor due to the free bearing, and it is possible to perform light and quick direction change to the free direction. In addition, the tire is supported by the base roller and side rollers, and is prevented from falling by the center hook, so the tire can be rotated lightly with one hand, and the cylinder for lifting the tire pedestal can be adjusted according to the weight of the tire. It is possible to easily perform fine adjustment of the vertical position of the tire by performing a balance action and raising and lowering the tire with a light force.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, there is a truck for mounting a tire according to the present proposal. Reference numeral 1 is a base, and free bearings 2 are provided at the four corners of the lower surface of the base so as to make point contact with a floor base 3 and roll. A guide frame 4 is erected on the upper surface side of the base 1, and a handle 15 for moving the base is fixed to the guide frame 4.

A horizontal plane bracket 5 is vertically guided by the guide frame 4, and a tire pedestal 6 is fixedly mounted on the bracket 5. A cylinder 7 for raising and lowering the tire receiving stand 6 is installed on the base 1 on the lower surface of the tire receiving stand 6, and a piston rod is connected to the lower surface of the tire receiving stand 6.

A pair of left and right base rollers 9 that support the lower portion of the outer peripheral surface of the tire 8 are provided on the tire pedestal 6, and a pair of left and right base rollers that support the sidewalls of the tire 8 and a central lower portion. Side rollers 11 are provided at these three points through support members 10 fixed to the left and right positions with the base roller 9 at the center. Reference numeral 12 is a synchronous roll that contacts the outer peripheral surface of the tire 8, and is supported by the support member 10 in the previous term.

A horizontal bar 10a is fixed between the left and right support members 10, and a center hook 13 that engages with and disengages from the wheel of the tire 8 is pivotally supported on the horizontal bar 10a so as to be rotatable in the front-rear direction. The center hook 13 is connected to a center hook operating cylinder 14 fixedly mounted on the tire pedestal 6.

Reference numeral 16 denotes a main air supply post, which is connected to an air source (not shown) via a hose and supplies air to an air circuit, which will be described later, provided in the tire mounting carriage 30. Reference numeral 17 is a mechanical valve provided on the guide frame 4, and 18 and 19 are operation button switches provided on the handle 15.

As shown in FIG. 3, the air circuit includes a mechanical valve 17 that is controlled by the vertical movement of the tire pedestal 6 and intermediately stops when the tire pedestal 6 is raised, and a cylinder 7 for lifting the tire pedestal 7. Operation button switch 18 for instructing ascending operation, operation button switch 19 for instructing balance of the cylinder 7 for lifting and lowering the tire pedestal, pedal switch 20 for lowering the cylinder 7 for lifting and lowering tire pedestal, and air operator type precision relay for balancing It is composed of a regulator 21 and a required number of various air operated valves 22, and the center hook operating cylinder 14 is operated and controlled by a sequence of a mechanical valve 17, operation button switches 18 and 19 and a plurality of air operated valves 22. ing.

The operation of the tire mounting trolley 30 of the present invention having the above-described structure is such that the tire 8 is supported on the tire pedestal 6 by the base roller 9 and the side rollers 11, and the center hook 13 is mounted on the wheel of the tire 8. It is held in a state where it is engaged and prevented from falling.

The tire pedestal 6 holding the tire 8 is moved upward by the tire pedestal raising / lowering cylinder 7 by operating the operation button switch 18, and the center hook 13 for actuation of the fall is actuated by the center hook operating cylinder 14. Then, the mechanical valve 17 makes an intermediate stop during the ascent, and the operation of the operation button switch 19 causes the center hook operating cylinder 14 to release the center hook 13 from the fall prevention action, so that the tire pedestal lifting cylinder 7 is moved to the Balance according to weight. Further, the tire pedestal raising / lowering cylinder 7 is moved downward by operating the pedal switch 20.

An example of work for mounting the tire 8 on the vehicle by the above-described operation will be described with reference to FIG. As shown in FIGS. 4A and 4B, the tire mounting carriage 30 is moved to the tire stock portion, and the tire 8 is received by the tire mounting carriage 30 from the tire erecting device. As described above, the tire 8 received by the tire mounting carriage 30 is supported on the tire support 6 by the base roller 9 and the side roller 11, and the center hook 13 is engaged with the wheel of the tire 8. It is held in a state that prevents it from falling.

When the tire mounting trolley 30 that has received the tire 8 is turned around, as shown in FIG. 4C, the vehicle is moved to the vehicle 31, and the tire pedestal lifting cylinder 7 is brought into a balanced state at that position. Finely align the wheel with the hub bolt position, rotate the tire 8 to align the phase of the hub bolt hole of the wheel with the hub bolt, and disengage the center hook 13 from the wheel of the tire 8.

Then, the tire 8 is attached to the vehicle, and as shown in FIG. 4 (E), the tire mounting trolley 30 is retracted from the vehicle 31 to change the direction, and the process returns to FIG. 4 (A) again. The work is repeated.

In the above work, the lifting and lowering movement of the tire cradle 6, the balance and the operation of the center hook 13 are automatically operated by operating the operation button switches 18 and 19 and the pedal switch 20 provided on the handle 15. It is possible to rotate the tire 8 with one hand for phase matching between the hub bolt hole of the wheel and the hub bolt.

The floor base 3 may be made of concrete, but if an iron plate is laid and placed, the traveling movement of the tire mounting carriage 30 by the free bearing 2 can be easily obtained.

[0022]

[Effect of the device]

 As described above, according to the present invention, a guide frame is erected on a freely movable base with a free bearing attached to the lower surface, and the tire pedestal is guided so that it can be moved up and down. Install a base roller that supports the lower part of the outer peripheral surface of the tire, a side roller that supports the sidewall of the tire, and a center hook that engages and disengages with the tire wheel, and balance the tire pedestal according to the weight of the tire. And a cylinder for raising and lowering the tire pedestal, a cylinder for operating the center hook for engaging and disengaging the center hook with the wheel of the tire, a handle for moving the pedestal fixed to the pedestal, and lifting and lowering the tire pedestal. Since the structure is provided with the fluid pressure control device for the operating cylinder and the center hook operating cylinder, it is possible to smoothly and lightly move the tire mounting carriage. In, take-out tires, tire weight during transportation and assembling is eliminated by the heavy muscle work assistance. In addition, since the tire mounting height and hub bolt position can be adjusted easily and freely, the tire mounting workability is improved. Further, since the weight balance of the tire is wide, it has advantages such as high versatility.

[Brief description of drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is an air circuit diagram equipped with the present invention.

FIG. 4 is an explanatory diagram showing an example of use of the present invention.

[Explanation of symbols]

 1 base 2 free bearing 4 guide frame 6 tire pedestal 7 tire pedestal lifting cylinder 8 tire 9 base roller 11 side roller 13 center hook 14 center hook operating cylinder 15 handle 18 operation button switch 19 operation button switch 20 pedal switch

Claims (1)

[Scope of utility model registration request] 1. A movable base having a free bearing attached to its lower surface, a tire pedestal guided up and down by a guide frame erected on the base, and a tire pedestal installed on the tire pedestal. A base roller that supports the lower part of the outer peripheral surface of the tire, a side roller that supports the sidewall of the tire, a center hook that engages and disengages with the wheel of the tire, and the tire pedestal are balanced and moved up and down according to the weight of the tire. Cylinder for moving up and down a tire pedestal, cylinder for operating a center hook for engaging and disengaging the center hook with a wheel of a tire, handle for moving a pedestal fixed to the pedestal, cylinder for raising and lowering the tire pedestal and center hook A tire mounting carriage, comprising: a fluid pressure control device for an operating cylinder.