JPH0513846B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a tire-wheel separation device, and in particular, it is capable of remotely separating tires and wheels in the scrapping process of old tires without damaging the tires. This relates to a device that can be operated efficiently.

[Conventional technology]

In recent years, with the spread of automobiles, the number of scrapped cars has also increased, and the disposal of the enormous amount of old tires that are normally produced, five each including the spare tire, from one automobile has become a problem.

Conventional methods of disposing of old tires involve separating the tires one by one from the wheels manually using a crowbar or using special equipment, with the expectation that they will be used as raw material for recycled tires, or they are separated from the wheels one by one using a specialized device. In the process, the entire tire was crushed radially and the deformed wheel was removed, so low work efficiency was a problem in recovering recycled tire resources.
The reality is that it is impossible to keep up with the enormous amount of used tires that are being produced one after another, and in order to improve work efficiency, there is no choice but to give up on collecting recycled tire resources.

[Problem to be solved by the invention]

The present invention has been made in view of the shortcomings of the prior art, and allows for remote control from carrying old tires into a machine to carrying out separated tires and wheels without directly touching the dirty old tires. To provide a tire-wheel separation device that achieves safe and highly efficient separation work using the mechanical power of the machine, and can separate tires from wheels without damaging the tires so that they can be used as recycled tire resources. The purpose is to

[Means to solve the problem]

In order to solve the above-mentioned problem, the tire wheel separation device according to the invention according to claim 1 of the present application has the following features:
The boom tip of a self-propelled work vehicle equipped with a hydraulically operated boom capable of turning and lying down is capable of grasping a tire fitted on a disc wheel, and also grasping a rim portion of the drum open end side of the disc wheel from the outside. By closing the drum as it is, the drum of the wheel is pushed inward at a plurality of locations on the rim side, thereby deforming the drum so that the outline of the drum on the rim side substantially fits inside the rim inner hole of the tire. It is equipped with a power opening/closing pawl, and the power opening/closing pawl is controlled by operation from the operating room of the work vehicle.

In a preferred embodiment of this tire-wheel separation arrangement, a tire support stand having a hole through which the disc wheel can pass is further provided at the front of the vehicle body of the work vehicle.

In order to solve the above-mentioned problem, the tire-wheel separation device according to claim 3 of the present application has a head supported by a fixedly installed support structure that grips a tire fitted on a disc wheel. At the same time, by grasping the rim portion of the open end of the drum of the disc wheel from the outside and closing it as it is, the drum of the wheel is pushed inward at multiple points on the rim portion side, thereby substantially changing the contour of the drum on the rim portion side. The drum is equipped with a power opening/closing pawl that deforms the drum so that it fits inside the rim inner hole of the tire, and the power opening/closing pawl is controlled by remote control.

In a preferred embodiment of this tire-wheel separation device, the head is supported by the support structure so as to be horizontally movable between at least two positions. Also in this case, as described above, it is preferable that a tire support stand having a hole through which the disc wheel can pass is provided directly below the power opening/closing pawl.
More preferably, the power opening/closing pawl is provided on the head so as to be movable up and down.

[Effect]

Since the tire-wheel separation device according to the invention described in claim 1 is mounted on a self-propelled work vehicle, it is possible to self-propel to a location where old tires are piled up and perform work thereon. Then, use the power opening/closing claw at the tip of the boom to grasp the old tire to be separated, place it flat on a support stand, etc. with the disc side of the disc wheel facing down, and then operate the boom and power opening/closing claw while driving the work vehicle. By remote control using hydraulic pressure from the control room, first insert the tip of the claw along the side of the tire into the gap between the tire and the rim on the open end side of the drum facing above the disk wheel. gripping the rim portion from the outside with the pawls at multiple locations in the circumferential direction, then closing the power opening/closing pawls while applying force through hydraulic operation, thereby pushing the drum of the wheel inward at multiple locations on the rim portion side; As a result, the drum is deformed so that the outline of the drum on the rim side is substantially accommodated inside the rim inner hole of the tire. After this, the open end of the drum of the wheel has already been deformed into a reduced diameter shape, so moving the tire upwards with respect to the wheel will separate them from each other, and you can also carry out this work and, if necessary, remove the wheel. It can also be carried out by handling the tire or wheel using the power opening/closing pawl.

In the case of using the support base with holes in the present invention, old tires are set on the support base in a state in which the wheels are aligned so that they fit within the range of the holes in the support base. In this case, the wheel is deformed into a diameter-reduced shape as described above and then pushed from above, whereby the wheel separates from the tire and falls downward through the hole in the support. This fallen wheel is
If it is made to roll into the hole from below, it can be carried out by grasping it with the opening/closing claw, or it may be received under the hole with a bucket or the like, or it may be carried out with a belt conveyor.

In the tire/wheel separation device according to the invention as set forth in claim 3, the power opening/closing claw is attached to a head supported by a fixed support structure in a factory or the like, and this head can be moved horizontally as necessary. and can be raised and lowered. Therefore, in this case, the old tires are transported to a predetermined location near the equipment using a belt conveyor, etc. From that location, the power opening/closing claws grasp the old tires one by one and place them on the support stand, and the separation work and the like as described above are carried out. Tires and wheels will be removed.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows the external appearance of a tire and wheel separator device according to a first embodiment of the present invention.

In the figure, 10, 12, 14, 16, 18,
10 and 12 are first and second arms constituting a boom, which can be operated prone by hydraulic pressure. Reference numeral 14 denotes an upper body structure of the working vehicle, which is rotatably mounted on a self-propelled lower body structure by a caterpillar 16, and the first arm 10 is pivotally supported near the center thereof. In addition, the upper structure 14
A part of the vehicle is provided with a cockpit 18 for a person to enter and operate the vehicle.

Reference numeral 20 denotes a bracket that is provided at the front of the work vehicle so as to be movable up and down by a second arm 22, and a support stand 24 is fixed to the front of the bracket in place of the earth removal plate or the like. The inside of this support stand 24 is a cavity, and a bottom plate 25 is provided with a downward slope toward the front exit.

Two penetrating holes 26a and 26b are formed side by side on the upper surface of the support base 24, and the relatively larger hole 26b is opened and closed by a built-in hydraulic cylinder device 27 and a link mechanism 28. Wheel pressure clamp plates 29a and 29b are installed on the surface portion. The hydraulic cylinder device 27 is operated remotely from within the cockpit 18.

Note that when moving the vehicle, the support base 24 is attached to the arm 2.
2, it can be raised upward by a predetermined height.

30 is a power opening/closing claw attached to the tip of the boom, which can be rotated around the boom axis to change the direction. This power opening/closing claw 3
0, an old tire was carried onto the support stand 24, its direction and position was changed, and the open end side of the drum of the wheel was deformed into a diameter-reduced shape, and after this deformation, the tire and wheel were pulled apart and separated. It is for carrying out tires and wheels, and in the illustrated example, it consists of four opening/closing claws 32 facing each other that are opened and closed by hydraulic pressure from the operation chamber 18; Alternatively, the structure may include a larger number of opening/closing claws. Further, in the illustrated example, at the center of each claw part 32 of the power opening/closing claw 30 is a pushing hydraulic cylinder device 36 that can push out the ram 34 downward by operation from the operation chamber 18.
is incorporated.

Next, FIG. 1 shows the operation of the above embodiment, and FIGS. 2A to 2H and 3A to 3 show the working procedure.
This will be explained using diagram C.

First, by turning the upper vehicle structure 14 and moving the booms 10 and 12 up and down, the power opening/closing claw 30 is positioned directly above the pile of old tires. Grab one old tire and carry it over the hole 26a (or 26b) of the support stand 24.

Then, by operating the booms 10, 12 and the opening/closing claw 30, the old tire is inserted into the hole 26 as shown in FIG. 2A.
Align it directly above a and place it flat. In addition, 2nd A~2
In Figure H, the old tire is shown as a drop center type disc wheel h and a tire t attached to it.

Next, each claw part 32 of the opening/closing claw 30 is opened once, the position is changed, and the claw part 32 is stretched along the side part of the tire t on the support base 24, and the claw part 32 is inserted into the gap between the inner tire bead part. As shown in FIG. 2B, the rim portion of the drum open end side of the wheel h is grasped from the outside, and the opening/closing pawl 30 is strongly closed by hydraulic pressure. As a result, the drum open end side of the wheel h is pushed inward at four points around the periphery as shown in Figure 2C, and the rim portion of the drum open end side of the wheel h has a reduced diameter as shown in the right side of Figure 3A. transformed into. From this state, the wheel h can be pressed from above by machining with each claw 32 closed, or the extrusion hydraulic cylinder device 3 can be used as shown in FIG. 2D.
By similarly pushing the wheel h with the ram 34 of No. 6, the wheel h separates from the tire h, and only the wheel h falls downward from the hole 26a, rolls on the inclined bottom surface 25 of the support base 24, and is attached to the support base. It comes to the front. This is pinched with the opening/closing claw 30 and carried out to a predetermined accumulation location.

When using the other hole 26b of the support base 24, the work procedure up to FIG. 2C is the same, but
Thereafter, as shown in FIG. 2E, each pawl 32 presses the wheel h from above to hold the lower disk side rim part in the hole 26b,
Next, as shown in FIG. 2F, the clamp plates 29a and 29b on the surface of the hole 26b are closed and inserted into the gap between the tire bead and the wheel h.
is moored above the hole 26b by the elasticity of the tire t and the action of the clamp plates 29a and 29b. After this,
Open each claw 32 and change its position, hold the outside of the tire t by inserting the claw part 32 into the gap between it and the surface of the support base as shown in Fig. 2G, and open/close the opening/closing claw 30 as shown in Fig. 2H. Just pick it up and put it on the tire
When it is pulled off, the wheel h falls downward, and the tire t is carried to a predetermined location while being grabbed by the opening/closing claw 30.

The operation using the clamp plates 29a and 29b is particularly effective when the tire and wheel are firmly attached and difficult to separate. This clamp plate is not limited to one that clamps the wheel from both sides, but may be one that is inserted into the gap between the tire beads from one side and presses the wheel against the wall of the hole from one side.
In this case, it is best to lift the tire up on the clamp plate and pull it off from the support base. Further, the shape of the clamp plate is not limited to the illustrated arcuate concave shape, and various shapes such as a triangular concave shape or a serrated blade shape can be selected.

In the above-described embodiment, each claw portion 32 of the power opening/closing claw 30 has four parts, but in the case of a three-part structure, the diameter-reduced deformation described above occurs as shown in FIG. 3B. Of course, modifications such as using other numbers and shapes of claws are also possible.

FIG. 4 shows a second embodiment of the invention.

This embodiment differs from the previous embodiment only in the structure of the support portion of the power opening/closing claw 30.

That is, the example shown in FIG. 4 shows a case where it is fixedly installed in a factory or the like, and a running beam 42 that extends horizontally to a support 40 is equipped with a head that is horizontally movable in both directions along the beam 42. 44 is attached. The head 44 is equipped with an electric motor 46 for horizontal movement, and a power opening/closing pawl 50 similar to that of the first embodiment is suspended below and supported by an elevating device 48. The power opening/closing pawl 50 has a plurality of opposing pawls 52 that are driven to open and close by a hydraulic cylinder device 54, and at the center thereof, an extrusion hydraulic cylinder device 56 is capable of protruding a ram 58 downward. We are preparing for

Below the beam 42, in order from the left in the figure,
An old tire carry-in table 60, a support stand 64, and a tire carry-out conveyor 62 are arranged side by side, and the inside of the support stand 64 is hollow.
The lower part of the hole 66 provided in the housing is received by an inclined bottom plate 68, and the lower end of the inclined bottom plate 68 is connected to a wheel discharge conveyor 70.

In the apparatus of this embodiment, first, the head 44 is moved directly above the old wheeled tire ht carried into the table 60 by a carry-in conveyor (not shown), the head 44 is grabbed by the opening/closing claw 50, and the head 44 is moved to the support stand 64.
Align it with the hole 66 on the top and place it flat. When the tire t and the wheel h are separated on the support stand 64 in the same manner as described in the first embodiment, the wheel h falls through the hole 66 and slides on the inclined bottom plate 68.
It is carried out by the carrying-out conveyor 70. On the other hand, the tire t is transferred to the carry-out conveyor 62 by the opening/closing pawl 50, and is carried out to a predetermined location.

These operations can be controlled remotely from another location.

In this second embodiment, the pillar is fixedly installed, but in this case, the pillar and the support base are combined into one rigid frame structure, and this can be installed on a base, or it can be installed on a movable trolley. It may be installed in

〔Effect of the invention〕

As explained above, according to the present invention, most of the work of grasping an old tire, placing it in a working position, separating the tire and wheel, and then transporting the separated tire and wheel is performed using the power opening/closing claw. It can be operated from a distance by holding the tire in place, making it possible to work safely and efficiently without touching the dirty old tire directly, and since it does not apply large force or deformation to the tire, it does not damage the tire and allows it to be regenerated. At the same time, it is also possible to effectively utilize the tires as a resource.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the structure of the first embodiment of the present invention, Figs. 2A to 2H are cross-sectional explanatory views explaining the procedure of tire and wheel separation work according to the invention, and Figs. 3A and B are power opening/closing claws. FIG. 4 is an explanatory diagram showing how the wheel deforms, and FIG. 4 is a configuration diagram showing an outline of a second embodiment of the present invention. (Explanation of symbols of main parts), 10, 12...Boom (first and second arms), 14...Upper vehicle structure, 18...Cockpit, 20...Bracket, 2
4... Support stand, 26a, b... Hole, 29a, b...
...Clamp plate, 30...Power opening/closing claw, 32...
Claw portion, 34... Ram, 40... Support, 42... Running beam, 44... Head, 50... Power opening/closing claw, 60... Old tire carrying-in table, 62... Tire carrying-out conveyor, 64... Support Stand, 66...
Hole, 68... Inclined bottom plate, 70... Wheel delivery conveyor.

Claims (1)

[Scope of Claims] 1. A tire-wheel separation device comprising a separation means for separating old tire disc wheels and tires at the tip of the boom of a self-propelled work vehicle equipped with a hydraulically operated boom capable of swinging and prone, comprising: A tire support stand having a hole through which the wheel can pass is provided at the front of the vehicle body of the work vehicle, and the separation means grasps the tire fitted to the disk wheel and places the wheel in alignment with the hole in the support stand. At the same time, by gripping the rim portion of the drum open end side of the mounted wheel from the outside and closing it as it is, the drum of the wheel is centripetally pushed in from at least three sides on the rim portion side, thereby substantially a power opening/closing pawl having at least three pawls that deforms the drum so that the outline of the drum on the rim side fits inside the rim inner hole of the tire; the power opening/closing pawl is deformed; A tire wheel separation device characterized in that the disc wheel is configured to be able to advance into the inner rim hole of the tire with the at least three claws closed so as to push the disc wheel into the hole and eject the disc wheel. . 2. The tire-wheel separation device according to claim 1, further comprising a clamp plate that clamps a disk-side rim portion on the lower surface side of the disk wheel in the hole of the support base. 3. The head supported by a fixedly installed support structure can grip the tire fitted on the disc wheel, and can also grip the rim part of the open end of the drum of the disc wheel from the outside and close it as it is. Pushing the drum of the wheel centripetally from at least three sides on the rim portion side to deform the drum so that the outline of the drum of the rim portion is substantially accommodated inside the rim inner hole of the tire; a power opening/closing pawl having two pawls; a tire support base having a hole through which the disc wheel can pass is provided directly below the power opening/closing pawl; the power opening/closing pawl allows the deformed disc wheel to fit into the hole; A tire-wheel separation device characterized in that the at least three claws are configured to be able to advance into the rim inner hole of the tire with the at least three claws closed so as to be pushed and discharged. 4. The tire-wheel separation device according to claim 3, wherein the head is supported by the support structure so as to be horizontally movable between at least two positions. 5. The tire-wheel separating device according to claim 3, further comprising a clamp plate that clamps a disk-side rim portion on the lower surface side of the disk wheel in the hole of the support base. 6. The tire wheel separation device according to claim 3, wherein the power opening/closing pawl is provided on the head so as to be movable up and down.