JPH02127109A - Tire wheel separating device - Google Patents

Abstract

PURPOSE:To perform work safely and effectively and still to make it possible to utilize an old tire effectively as recycled tire resources by grasping the old tire to place it in a working place and separating the tire from a wheel by remote control operation by means of a powered closing claws. CONSTITUTION:An old tire is grasped by the closing claws 30 which are a part of structure 14 of vehicle carried on the hole 26a of a supporting bed 24 and placed in horizontally arranged posture. Next, claws 32 are inserted in a gap between an inside tire bead part, and a wheel closing claws 30 for the drum of a wheel (h) are strongly closed with oil pressure. According thereto, a drum opening end side of the wheel (h) is pressed inward at four places in circumference thereof, and a rim part of the drum opening end side of the wheel (h) is deformed in the state of contracted diameter. Respective claws 32 are made to make processing from this condition and by pushing the wheel (h) from the top, the wheel (h) is separated from the tire (t), only the wheel (h) drops from the hole 26a, rolls on the tilted bottom face 25 of the supporting bed 24 and appears in front of the supporting bed. Pinching this wheel with the closing claws 30 the same is carried to an appointed stacking place.

Description

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

[Prior art] In recent years, with the spread of automobiles, the number of scrapped cars has also increased.
Disposing of the huge amount of old tires that are produced by trees has become a problem.

The conventional method of disposing of old tires is to separate the tires from the wheels one by one by hand using a crowbar, etc. or with a special device, or to reuse the tires. The conventional method was to crush the entire tire radially and remove the deformed wheel without thinking, so low work efficiency was a problem in recovering recycled tire resources, and a huge amount of old tires were generated one after another. The reality is that we were unable to keep up with the volume, and in order to increase work efficiency, we had no choice but to give up on collecting recycled tire resources.

[Problems to be Solved by the Invention] The present invention has been made in view of the drawbacks of the prior art. In addition to realizing safe and highly efficient separation work using remote-controlled mechanical power without having to touch the tires directly, it is also possible to separate tires from wheels without damaging them so that they can be used as recycled tire resources. The purpose of this invention is to provide a tire-wheel separation device that can be used to separate tires and wheels.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the tire wheel separation device according to the invention according to claim 1 of the present application is a self-propelled work device equipped with a hydraulically operated boom that can turn and lie down. The tire fitted on the disc wheel can be gripped at the tip of the boom of the vehicle, and the rim part of the drum open end side of the disc wheel can be gripped from the outside and closed as it is, thereby moving the drum of the wheel towards the rim part side. equipped with a power opening/closing pawl that deforms the drum by pushing it inward at multiple locations so that the outline of the drum on the rim portion side substantially fits inside the rim inner hole of the tire; It is controlled by operations from the vehicle's control room.

In a preferred embodiment of this tire-wheel separation device, 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 is capable of gripping a tire fitted on a disc wheel by a head supported by a fixedly installed support structure, and By grasping the rim portion of the drum open end side of the disc wheel from the outside and closing it as it is, the drum of the wheel is pushed inward at a plurality of locations on the rim portion side, so that the outline of the drum on the rim portion side is substantially the same. The drum is equipped with a power opening/closing pawl that deforms the drum so that it fits inside the inner hole of the rim 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.

[Function] 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 work by self-propelled to a location where old tires are piled up. It is. Then, use the power opening/closing claw at the tip of the boom to grab the old tire to be separated and place it flat on a support stand with the disc side of the disc wheel facing down.
By remotely controlling the boom and the power opening/closing pawl using hydraulic pressure from the operator's control room of the work vehicle, first, the side part of the tire is inserted into the gap between the rim part on the open end side of the drum facing above the disc wheel and the tire. Insert the tips of the claws along the circumference, grip the rim portion from the outside with the claws at multiple points in the circumferential direction, and then close the power opening/closing claws while applying force with hydraulic operation to tighten the drum of the wheel onto the rim. The drum 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. After this, the drum open end of the wheel has already been deformed into a reduced diameter shape, so moving the tire upwards relative to the wheel will separate them from each other. This can also be done by handling the tire or wheel using the power opening/closing pawl.

When using the support base with holes in the present invention, old tires are set on the support base in a state where the wheels are lined up within the range of the holes in the support base. In this case, the wheel is deformed into a reduced diameter 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. If the wheel is rolled into the hole from below, it can be grabbed with the opening/closing claw and carried out, or it can be caught in a packet under the hole, or it can be carried out with a belt conveyor. Good too.

In the tire-wheel separating device according to the invention described 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 and raised and lowered as necessary. It is possible. Therefore, in this case, the old tires are transported to a designated location near the equipment using a belt conveyor, etc., and from that location the old tires are grabbed one by one with the power opening/closing claw and placed on a support stand, and the separation work and tire The wheels will then be removed.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

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

In the figure, 10, 12, 14, 16, and 18° are components similar to those of a well-known swinging work vehicle used in excavators, etc., and 10.12 is the first arm and second arm that make up the boom. Yes, it can be operated prone using hydraulic pressure. Reference numeral 14 denotes an upper body structure of the work vehicle, which is rotatably mounted on a self-propelled lower body structure by caterpillars 16, and the first arm 10 is pivotally supported near the center thereof. In addition, the upper structure 14
Part of it has a cockpit 18 for humans to enter and operate the vehicle.
is provided.

Reference numeral 20 denotes a bracket that is movable up and down by two wooden arms 22 at the front of the work vehicle, and a support stand 24 is fixed to the front of the bracket in place of a soil removal plate or the like. The inside of this support structure 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 in the upper surface of the support base 24, and the relatively larger hole 26b is provided with a wheel clamp that is opened and closed by a built-in hydraulic cylinder device 27 and a link mechanism 28. Pressure clamp plate 29a
, 29b are installed on the surface portion. The hydraulic cylinder device 27 is operated remotely from within the cockpit 18.

Note that when the vehicle is moving, the support base 24 can be raised upward by a predetermined height by the arm 22.

30 is a power opening/closing claw attached to the tip of the boom, which can rotate around the boom axis to change direction. This power opening/closing claw 30 is connected to the support base 2.
4. Bring in the old tire, change its direction and position, deform the open end of the drum of the wheel into a diameter-reduced shape, and after this deformation, separate the tire and wheel, and carry out the separated tire and wheel. 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, but this may be two, three, or other. It is also possible to configure the number of opening/closing claws. Further, in the illustrated example, a pushing hydraulic cylinder device 36 is incorporated in the center of each claw portion 32 of the power opening/closing claw 30, which can also push out the ram 34 downward by operation from the operation chamber 18.

Next, the operation of the above embodiment will be explained with reference to FIG. 1 and FIGS. 2A to 2H and 3A to 3C showing the operating procedure.

First of all, the swing of the supercar structure 14 and the boom 10.1
After positioning the power opening/closing pawl 30 directly above the pile of old tires by the vertical movement operation in step 2, the opening/closing pawl 30 grabs one old tire and opens it into the hole 26a of the support base 24.
(or 26b).

Then, by operating the boom 10.12 and the opening/closing pawl 30, the old tires are aligned and laid flat directly above the hole 26a, as shown in FIG. 2A. In FIGS. 2A to 2H, the old tires are shown as a drop center type disc wheel h and a tire t mounted thereon.

Next, open each claw part 32 of the opening/closing claw 30 once, change the position, and move the claw part 3 along the side part of the tire t on the support base 24.
2 and insert the claw part 3 into the gap between it and the inner tire bead part.
2, grasp the rim part of the drum open end side of the wheel h from the outside as shown in Fig. 2B, and then open/close the opening/closing claw 3.
0 is closed tightly using 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 is reduced in diameter as shown in the right side of Figure 3A. , is transformed into. From this state, the winter melon 32 is processed while being closed and the wheel h is pushed from above, or the wheel h is similarly pushed by the ram 34 of the extrusion hydraulic cylinder device 36 as shown in FIG. 2D. h is tire t
The wheel h alone falls downward from the hole 26a, rolls on the inclined bottom surface 25 of the support base 24, and comes out in front of the support base. 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 then the second hole 26b is used.
As shown in the figure, the wheel h is pressed from above with the winter melon 32, and the lower disk side rim part is held in the hole 26b, and then the hole 26b is held as shown in FIG. 2F.
Close the clamp plates 29a and 29b on the surface of b and insert them 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 that, open the winter melon 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 use the opening/closing claw as shown in Fig. 2H. When the wheel 30 is lifted up as it is and the tire t is pulled off, the wheel h falls down and the tire t is carried to a predetermined location while being held 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 also be one that is inserted into the tire bead gap from one side and presses the wheel against the wall of the hole from one side. In this case, the clamp plate side It is best to pull it away from the support stand so that it stands up. 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-mentioned embodiment, each claw part 32 of the power opening/closing claw 30 is composed of four parts, but in the case of the Miki structure, the diameter-reduced deformation described above is as shown in FIG. 3B, and two parts are used. In the case of the structure shown in FIG. 3C, it is sufficient to deform it once and then rotate the pawl and wheel as a whole by 90 degrees and deform it again. 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 in FIG. 4 shows a case where it is fixedly installed in a factory or the like, and a traveling beam 42 horizontally extended to a support 40 has a head that can move horizontally in both directions along the beam 42. 44 is attached. The head 44 is equipped with an electric motor 46 for this horizontal movement, and a power opening/closing claw 5 similar to that of the first embodiment described above is provided at the bottom thereof.
0 is suspended and supported by a lifting 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. At the center of the power opening/closing pawl 50, an extrusion hydraulic cylinder device 56 is connected to the ram 5.
8 so as to be able to protrude downward.

Below the beam 42, in order from the left in the figure, an old tire loading table 60, a support stand 64, and a tire unloading conveyor 62 are arranged side by side, and the inside of the support stand 64 is air-conditioned. The lower part of the hole 66 provided in the support base 64 is received by an inclined bottom plate 68.
The lower end of is connected to the 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 grasped by the opening/closing claw 50, and the head 44 is grasped by the hole 66 on the support base 64. 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, slides on the inclined bottom plate 68, and is carried out by the carrying-out conveyor 70. be done. On the other hand, the tire t is transferred to a carry-out conveyor 62 by the opening/closing claw 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 vertical frame structure, and this can be installed on a base, or on a movable trolley. It may be installed in

[Effects of the Invention] As explained above, according to the present invention, an old tire is grabbed and placed in a working position, the tire and wheel are separated,
Furthermore, most of the work of transporting separated tires and wheels can be done remotely using a power opening/closing claw, making it possible to work safely and efficiently without having to directly touch dirty old tires. Since no large force or deformation is applied to the tires, the tires are not damaged and at the same time can be effectively used as recycled tire resources.

[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 to 30 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), 1
4... Upper vehicle structure, 18... Cockpit, 20...
Bracket, 24... Support stand, 26a, b... Hole,
29a, b... Clamp plate, 30... Power opening/closing claw, 32... Claw part, 34... Ram, 40... Support column,
42... Traveling beam, 44... Head, 50...
Power opening/closing claw, 60...Old tire loading table, 62
...Tire unloading conveyor, 64...Support stand, 66.
...hole, 68...slanted bottom plate, 70...wheel unloading conveyor. Agent Patent Attorney Masatoshi Sato

Claims (1)

[Claims] 1. A self-propelled work vehicle equipped with a hydraulically operated boom capable of swinging and lying down has a boom tip capable of grasping a tire fitted in a disc wheel and an open end of the drum of the disc wheel. By grasping the side rim portion from the outside and closing it as it is, the drum of the wheel is pushed inward at multiple locations on the rim portion side, so that the outline of the drum on the rim portion side is substantially inside the rim inner hole of the tire. A tire/wheel separation device equipped with a power opening/closing pawl that deforms the drum so as to fit into the drum, and the power opening/closing pawl is controlled by operation from an operation room of the work vehicle. 2. The tire and wheel separation device according to claim 1, further comprising a tire support stand having a hole through which the disc wheel can pass, at the front of the vehicle body of the work vehicle. 3. The head supported by the fixedly installed support structure can grip the tire fitted in the disc wheel, and also grips the rim portion of the open end side of the drum of the disc wheel from the outside and closes it as it is. Equipped with a power opening/closing claw that deforms the drum of the wheel by pushing the drum of the wheel inward at multiple locations on the rim side so that the outline of the drum on the rim side essentially fits inside the rim inner hole of the tire. This tire and wheel separation device has a power opening/closing claw that can be controlled remotely. 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 separation device according to claim 3, further comprising a tire support stand having a hole through which the disc wheel can pass, right below the power opening/closing claw. 6. The tire wheel separation device according to claim 3, wherein the power opening/closing claw is provided on the head so as to be movable up and down.