JP5775957B1 - Wheel extraction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel extracting device capable of easily extracting even a highly rigid tire by pressing the wheel from the tire. SOLUTION: A first tire portion T1 of a tire T is pressed on a first tire cradle 6 by a first tire pressing means 7, and a second tire portion T2 is pushed up by a tire lifting means 11, The second tire pressing means 12 is pressed, the first wheel portion W1 is pressed from above by the wheel extracting means 8, and the wheel W is extracted from the tire T. [Selection] Figure 1

Description

  The present invention relates to a wheel extracting device that presses a wheel on which a tire is mounted and extracts the wheel from the tire.

  A conventional wheel extraction device is described in Patent Document 1, for example. This prior-art wheel extraction device includes a tire separation and fixing device and a wheel extrusion device.

  A tire separating and fixing device includes: a pedestal on which the tire of a wheel having a tire mounted on a wheel is mounted with an outer sidewall facing upward and an inner sidewall facing downward; and a tire mounted on the cradle A blade that presses the outer sidewall of the wheel, the blade removes the outer bead portion from the outer rim portion of the wheel, the outer sidewall is pressed against the inner sidewall, and the tire is fixed to the cradle, and the blade The blade is configured to displace the tip of the blade toward the outer peripheral side of the tire by a predetermined distance from the position where the tip is in contact with the outer sidewall until the outer sidewall is pressed against the inner sidewall.

  The wheel extrusion device has an extruded body and a fulcrum member. After pressing the outer sidewall of the tire against the inner surface of the inner sidewall with a blade and fixing the tire to the cradle, the extruded body is moved from the outer periphery of the tire to the central axis. It protrudes at a predetermined extrusion angle close to the wheel, pushes in the disc portion of the wheel, and rotates the wheel about the fulcrum member as the rotation center.

  When the outer sidewall of the tire is pressed by the blade, the tire separating and fixing device projects from the opening where the wheel of the tire is mounted and supports one end of the wheel from below, and the disc portion of the wheel is pushed in by the extruded body. Before turning, a pressure receiving member retracted from the opening, a pressure receiving member retracting device for moving the pressure receiving member over a position protruding from the opening and a position retracted from the opening, and a blade attached to the free end, A pressing lever whose fixed end is supported so as to be swingable in the vertical direction by a support shaft, and a blade driving device for swinging the pressing lever.

Japanese Patent No. 5283657

  In the above-described prior art wheel extraction device, when the wheel is to be separated from a rigid tire reinforced by a reinforcing material such as a wire, the first tire portion on one side with respect to a virtual plane including the axis of the wheel is The outer side wall of the tire is separated from the outer rim of the wheel by pressing the outer side wall against the inner side wall, and the inner bead of the tire is separated from the inner rim of the wheel. There is a problem that the outer bead and the inner bead of the second tire portion on the side are not separated from the outer rim and the inner rim of the wheel, and the wheel cannot be easily pushed out from the tire.

  An object of the present invention is to provide a wheel extracting device that can easily extract a wheel by pressing the wheel from the tire even if the tire has high rigidity.

The present invention is a wheel extraction device for extracting a wheel mounted on a tire from the tire,
A tire cradle supporting a first tire portion on one side with respect to a virtual plane including the axis of the wheel of the tire;
A wheel receiver disposed horizontally adjacent to the tire cradle and supporting a second tire portion on the other side with respect to the virtual one plane of the tire and a wheel portion on the other side with respect to the virtual one plane of the wheel. Stand,
A first tire pressing means disposed above the tire cradle and deformed by pressing the first tire portion supported by the tire cradle from above;
A tire pushing means for pushing up a second tire portion disposed adjacent to the wheel cradle and supported by the wheel cradle upward from the wheel cradle;
A second tire pressing means disposed above the wheel cradle and deformed by pressing from above the second tire portion pushed up from the wheel cradle by the tire lifting means;
A wheel extraction device, comprising: a wheel extraction means disposed above the tire cradle and pressing a wheel portion on one side with respect to the virtual plane of the wheel from above to extract the wheel from the tire. Device.

  Further, the present invention provides the tire cradle between a support position that supports a wheel portion on one side with respect to the virtual plane and a predetermined evacuation position that is retracted to a side farther from the wheel cradle than the support position. It further includes wheel support means provided so as to be movable.

Further, the present invention provides a fixed gantry provided with the tire cradle, the first tire pressing means and the wheel extraction means,
A movable gantry provided with the first tire lifting means, the second tire pressing means and the wheel cradle;
Gantry support means for movably supporting the movable gantry on the fixed gantry in a direction in which the wheel cradle approaches the tire cradle and in a direction in which the wheel cradle is separated from the tire cradle. It is characterized by including.

  According to the present invention, the tire support supports the first tire portion of the tire, and the wheel support supports the second tire portion and the other wheel portion of the tire. The first tire portion is pressed and deformed from above by the first tire pressing means. As a result, in the first tire portion, the outer bead of the tire is separated from the outer rim of the wheel, and the inner bead of the tire is separated from the inner rim of the wheel.

  The second tire portion is pushed upward from the wheel cradle by the tire pushing means, and the second tire portion is pushed from above and deformed by the second tire pushing means. Thus, in the second tire portion, the outer bead of the tire is separated from the outer rim of the wheel, and the inner bead of the tire is separated from the inner rim of the wheel.

  Thus, the wheel in which the outer bead and the inner bead of the first and second tire portions are separated from the outer rim and the inner rim of the wheel is the first wheel of the wheel in a state where the second wheel portion is supported by the wheel cradle. When the wheel portion is pressed from above by the wheel extracting means, the wheel is pressed and extracted from the tire. Therefore, even if the tire is a flat tire having high rigidity, the outer bead and the inner bead of the tire can be separated from the outer rim and the inner rim of the wheel, and the wheel can be easily pressed out of the tire.

  According to the invention, since the first wheel portion is supported at the support position by the wheel support means, even if the first tire portion is pressed on the tire cradle from above by the first tire pressing means, the first wheel is supported. The portion is prevented from moving together with the first tire portion by the pressing force of the first tire pressing means, and the outer bead and the inner bead of the first tire portion are surely removed from the outer rim and the inner rim of the first wheel portion. Can be separated. In addition, since the wheel support means can move from the support position to the retracted position, the first wheel portion extruded from the tire by the wheel extraction means is prevented from interfering with the wheel support means, and the wheel can be moved more reliably. It can be pressed out of the tire.

  Further, according to the present invention, since the movable frame is movably supported on the fixed frame by the frame support means, a plurality of wheels having different sizes can be extracted from the tire and separated, and the convenience in use is improved. be able to.

It is a front view which shows the structure of the wheel extraction apparatus 1 of one Embodiment of this invention. 3 is an enlarged cross-sectional view of a part of the wheel extraction device 1. FIG. It is the side view which looked at the wheel extraction apparatus 1 from the left side of FIG. It is the top view which looked at the wheel extraction apparatus 1 from the upper direction of FIG. FIG. 3 is an enlarged front view of a movable gantry 4. It is sectional drawing which looked at the wheel extraction apparatus 1 when the 1st tire press means 7 displaced to the press position of the 1st tire part T1 from the upper direction of FIG. It is sectional drawing which looked at the wheel extraction apparatus 1 when the 1st tire press means 7 displaced to the standby position retracted | saved from the pressing position of the 1st tire part T1 from the upper direction of FIG. It is a front view which shows the 1st tire press means 7, the wheel extraction means 8, and the wheel support means 9. FIG. It is sectional drawing seen from the cut surface line IX-IX of FIG. FIG. 5 is a simplified cross-sectional view for explaining the operation of the wheel extraction device 1. FIG. 5 is a simplified cross-sectional view for explaining the operation of the wheel extraction device 1. FIG. 5 is a simplified cross-sectional view for explaining the operation of the wheel extraction device 1. FIG. 5 is a simplified cross-sectional view for explaining the operation of the wheel extraction device 1.

  FIG. 1 is a front view showing a configuration of a wheel extracting device 1 according to an embodiment of the invention, FIG. 2 is a partially enlarged sectional view of the wheel extracting device 1, and FIG. It is the side view seen from the left of FIG. In order to reuse a waste tire of an automobile, the wheel extraction device 1 that presses and extracts the wheel W from the tire T of the present embodiment is used. The wheel extraction device 1 includes a fixed frame 3 installed on a horizontal floor 2 such as an automobile repair shop, a movable frame 4 supported on the fixed frame 3 so as to be movable in the directions of arrows A1 and A2, and a movable frame. 4 includes gantry support means 5 that supports 4 on the gantry 3 so as to be movable in the directions of arrows A1 and A2.

  The fixed gantry 3 is provided with a first tire cradle 6, first tire pressing means 7, wheel extraction means 8, and wheel support means 9. The movable gantry 4 is provided with a second tire cradle 10, a tire lifting means 11, a second tire pressing means 12, and a wheel cradle 13. On the upper part of the fixed base 3, a hydraulic oil supply device 14 that supplies driving hydraulic oil to the first tire pressing means 7, the wheel extraction means 8, the wheel support means 9, the tire lifting means 11, and the second tire pressing means 12. Is installed.

The first tire bearing 6 includes a support plate 17 for supporting the inner side wall T _IN in the first tire portion T1 disposed on one side with respect to virtual plane including the axis L1 of the wheel W of the tire T, the support plate 17 And a frame portion 18 to be fixed.

Second tire bearing 10, the frame portion 20 and the support plate 19 for supporting the inner side wall T _IN in the second tire portion T2 is disposed on the other side with respect to virtual plane of the tire T, the support plate 19 is fixed And have. The support plate 17 of the first tire cradle 6 and the support plate 19 of the second tire cradle 10 are spaced apart from each other with a gap ΔL through which the wheel W can pass in the horizontal direction. Each tire support surface 17a, 19a facing the upper part of 2 is formed on a common horizontal plane.

Each tire supporting surfaces 17a, the 19a, the tire T mounted on the wheel W is in an outer side wall T _OUT upward, is nonoxynol by sideways state. The tire W is a flat tire having high rigidity reinforced by reinforcing members 21 and 22 such as loop-shaped metal wires and synthetic resin reinforcing fibers embedded in the outer rim L _OUT and the inner rim _LIN , respectively.

  FIG. 4 is a plan view of the wheel extraction device 1 as viewed from above in FIG. The fixed gantry 3 is parallel to the bottom structure 23 placed on the floor 2, columns 24 a to 24 d erected at the four corners of the bottom structure 23, and upper ends of the columns 24 a to 24 d. And the upper structure 25 provided in the structure. The upper structure 25 is mounted with the hydraulic oil supply device 14 described above, and an operation panel 26 is provided on a side portion on the front side. Further, the above-described gantry support means 5 is provided on the front and back side portions of the upper structure 25.

  FIG. 5 is an enlarged front view of the movable mount 4. The movable gantry 4 includes a lower frame body 31 provided with the second tire cradle 10, a tire lifting means 11 and a wheel cradle 13, an upper frame body 32 provided with the second tire pressing means 12, and a lower frame body 31. And the upper frame body 32 is comprised including the connection body 33 connected at intervals up and down.

  FIG. 6 is a cross-sectional view of the wheel pulling device 1 when the first tire pressing means 7 is displaced to the pressing position of the first tire portion T1, as seen from above in FIG. FIG. 2 is a cross-sectional view of the wheel extraction device 1 when viewed from above in FIG. 1 when the wheel is displaced from the pressing position of the first tire portion T1 to the standby position retracted. FIG. 8 is a front view showing the first tire pressing means 7, the wheel extracting means 8, and the wheel supporting means 9, and FIG. 9 is a cross-sectional view taken along the cutting plane line IX-IX in FIG.

The first tire pressing means 7 includes a first tire pressing member 37 that presses the outer sidewall T _OUT of the first tire portion T1 supported by the first tire cradle 6 from above, and the first tire pressing member 37 as an arrow. The first tire pressing drive cylinder Cy1 that moves in the direction of the marks B1 and B2, the long guide member 38 that guides the first tire pressing member 37 in the directions of the arrows B1 and B2, and the guide member 38 in the longitudinal direction It is configured to include a movable attachment body 39 that is movably fitted in the direction of certain arrows B1 and B2 and to which the first tire pressing member 37 is fixed.

The second tire pressing means 12 includes a second tire pressing member 41 that presses the outer sidewall T _OUT of the second tire portion T2 pushed upward from the second tire cradle 10 by the tire lifting means 11 from above. A second tire pressing drive cylinder Cy2 that moves the second tire pressing member 41 in the directions of arrows C1 and C2, and the second tire pressing member 41 is fixed to one end in the axial direction as a lower end portion, and the second tire pressing member A guide shaft 42 that guides 41 in the directions of arrows C1 and C2, and a guide that is fixed to the upper frame 32 and that is guided by being movably inserted in the directions of arrows C1 and C2 that are the axial directions of the guide shaft 42. And a sleeve 43.

Side 41a facing the first tire bearing 6 of the second tire pressing member 41, avoiding interference with the wheel W during descent, in order to press only the outer bead _{Tb OUT} from the outer side wall _{T OUT} of the tire T, It is formed in an arc shape that is convexly curved in a direction away from the first tire cradle 6 in plan view.

  The tire lifting means 11 includes a tire lifting member 51 that pushes the second tire portion T2 upward from the second tire cradle 10 and a tire lifting drive that moves the tire lifting member 51 in the directions of arrows D1 and D2. The cylinder Cy3 and the tire push-up member 51 are fixed to one end in the axial direction as the upper end, and the three guide shafts 52a, 52b, and 52c that guide the tire push-up member 51 in the directions of arrows D1 and D2; It includes three guide sleeves 53a, 53b, and 53c that are fixed to the frame 31 and guided by being inserted through the guide shafts 51a, 52b, and 52c in the directions of arrows D1 and D2 that are the respective axial directions. Composed.

  The wheel cradle 13 includes a columnar or cylindrical wheel support member 61 that supports the second wheel portion W2 on the other side (that is, the left side in FIG. 6) with respect to a virtual plane S that includes the axis L1 of the wheel W, and the wheel It includes a bracket 62 that supports the support member 61 by connecting it to the side of the lower frame 31 that faces the first tire cradle 6.

The upper end of the wheel support member 61 is disposed in a horizontal plane on or near the forming a top common with a plane of the tire push-up member 51, the second tire lifting member from below the inner side wall T _IN of the tire portion T2 Almost simultaneously with the contact of the upper surface of the wheel 51, the wheel support member 61 is brought into contact with the inner rim _LIN of the wheel W so that only the second wheel portion W2 of the wheel W or the wheel support member 61 together with the second tire portion T2 is contacted. Can be supported with great strength.

  The wheel extraction means 8 presses the wheel W from the tire T by pressing the first wheel portion W1 on one side (that is, the right side in FIG. 6) from above with respect to the virtual plane S including the axis L1 of the wheel W. A wheel extraction member 71 for extraction and a wheel extraction drive cylinder Cy4 for moving the wheel extraction member 71 in the directions of arrows E1 and E2 are configured.

  The wheel support means 9 includes a wheel support member 81, a tilt member 82 that tilts the wheel support member 81 in the directions of arrows F1 and F2, and a wheel support drive cylinder Cy5 that tilts the tilt member 82. .

  The gantry support means 5 is fixed to both sides of the upper structure 25 and extends horizontally to a pair of rails 45a and 45b, and a pair of movable bodies 46a and 46b that are movably fitted to the rails 45a and 45b. A connection frame 47 that connects the upper end of the upper frame 32 and the movable bodies 46a and 46b up and down, and a moving stand drive cylinder Cy6 that drives the connection frame 47 are configured.

  By the gantry support means 5, the movable gantry 4 is moved in the direction of the arrow A <b> 1 that is the direction in which the second tire cradle 10 is close to the first tire cradle 6 and in the direction of the arrow A <b> 2 that is the direction away from the first tire cradle 6. It is supported in a state of being movably suspended on the fixed base 3.

  The first tire pressing drive cylinder Cy1, the second tire pressing drive cylinder Cy2, the tire lifting drive cylinder Cy3, the wheel extraction drive cylinder Cy4, the wheel support drive cylinder Cy5, and the movable frame drive cylinder Cy6 are: Each is realized by a double-acting hydraulic cylinder having two connection ports, and is supported by a fixed gantry 3 and a movable gantry 4 so as to be angularly displaceable around a horizontal axis by a trunnion shaft. Each of the two connection ports is connected to the hydraulic oil supply device 14 by a connection pipe such as a hydraulic hose (not shown), and the hydraulic oil supply flow path from the hydraulic oil supply device 14 and the hydraulic oil to the hydraulic oil supply device 14 are connected. The return flow path is configured.

  When the operator selectively operates the operation switch provided on the operation panel 26, the hydraulic oil from the hydraulic oil supply device 14 is supplied to one connection port of each of the drive cylinders Cy1 to Cy6, and the other connection port. Is returned to the hydraulic oil supply device 14 to extend or retract the piston rods, and the first tire pressing member 37, the second tire pressing member 41, and the tire lifting member 51 attached to each piston rod. The wheel support member 81, the wheel extraction member 71, and the movable mount 4 can be driven to be displaced.

10 to 13 are simplified cross-sectional views for explaining the operation of the wheel extraction device 1. A procedure for extracting the wheel W from the tire T will be described. As shown in FIG. 10 (1), the operator positions and mounts the tire T on which the wheel W is mounted on the first and second tire cradles 6 and 10 so as to lie down. As shown, the first tire pressing member 37 is lowered in the direction of the arrow B1, and the vicinity of the outer rim L _OUT of the outer sidewall T _OUT is pressed down. At this time, the wheel support member 81 is in the support position, and the downward displacement of the wheel W is prevented.

Next, as shown in FIG. 10 (3), the wheel support member 81 is moved to the retracted position, the first tire pressing member 37 is lowered, and the wheel support member 81 is moved to the retracted position. Outer bead _{Tb OUT} of the first tire portion T1 is disengaged from the outer rim _{L OUT} of the wheel W, the inner bead _{Tb IN} of the first tire portion T1 is outside the inner rim _{L IN} of the wheel W. At this time, as shown in FIG. 11 (1), in order to prevent the wheel W from being detached from the tire T, the wheel support member 81 is returned to the support position so that the first tire portion T1 is shown in FIG. 11 (2). Then, the operator confirms that the first tire support 6 is supported by the support plate 17 and moves the wheel support member 81 to the retracted position again.

Next, as shown in FIG. 11 (3), the tire lifting member 51 of the tire lifting means 11 is raised, and the second tire pressing member 41 of the second tire pressing means 12 is lowered, so that FIG. ), The respective differential movement walls T2 _OUT and T2 _IN of the second tire portion T2 are sandwiched to separate the beads Tb _OUT and Tb _IN from the rims L _OUT and L _IN of the wheel W.

  Thereafter, as shown in FIG. 12 (2), when the wheel extraction member 71 is lowered and the wheel W is pressed, the wheel W is supported by the wheel support member 61 as shown in FIG. 12 (3). The first tire portion T1 is angularly displaced so as to be lowered, and as shown in FIG. 13 (1), one side of the wheel W is pushed out from the first tire portion T1, and the wheel extraction member 71 is further lowered to lower the first tire portion T1. As shown in (2), the entire wheel W is detached from the tire T, and the wheel W is extracted from the tire T as shown in FIG.

As described above, according to the present embodiment, the first tire support 6 supports the first tire portion T1 of the tire T, and the second tire support 10 supports the second tire portion T2 of the tire T. The The first tire portion T1 is pressed and deformed by the first tire pressing means 7 from above. As a result, in the first tire portion T1, the outer bead Tb _{OUT of the} tire T is separated from the outer rim L _{OUT of} the wheel W, and the inner bead Tb _{IN of the} tire T is separated from the inner rim L _IN of the wheel W. .

Further, the second tire portion T2 is pushed upward from the second tire cradle 10 by the tire lifting means 11, and the second tire portion T2 is pressed from above and deformed by the second tire pressing means 12. Thus, in the second tire portion T2, the outer bead Tb _{OUT of the} tire T is separated from the outer rim L _{OUT of} the wheel W, and the inner bead Tb _{IN of the} tire T is separated from the inner rim L _IN of the wheel W. .

As described above, in the wheel in which the outer bead Tb _OUT and the inner bead Tb _IN of the first and second tire portions T1 and T2 are separated from the outer rim L _OUT and the inner rim L _{IN of} the wheel W, the second wheel portion W2 is the wheel. While being supported by the cradle 13, the first wheel portion W <b> 1 of the wheel W is pressed from above by the wheel extraction means 8, whereby the wheel W is pressed from the tire T and extracted. Therefore, even if the tire T is a flat tire having high rigidity, the outer bead Tb _OUT and the inner bead Tb _IN of the tire T are separated from the outer rim L _OUT and the inner rim L _{IN of the} wheel W, and the wheel W can be easily separated from the tire T. Can be extracted by pressing.

Further, since the first wheel portion W1 is supported at the support position by the wheel support means 9, even if the first tire portion T1 is pressed on the first tire cradle 6 from above by the first tire pressing means 7, 1 wheel portion T1 is prevented from resulting in movement together with the first tire portion T1 by a pressing force by the first tire pressing means 7, certainly the outer bead Tb _OUT and inner bead Tb _iN of the first tire portion T1 first It can be separated from the outer rim L _OUT and the inner rim L _{IN of the} one wheel portion W1. Further, since the wheel support means 9 can move from the support position to the retracted position, the first wheel portion W1 extruded from the tire T by the wheel extraction means 8 is prevented from interfering with the wheel support means 9. Thus, the wheel W can be more reliably pressed from the tire T and extracted.

  Further, since the movable gantry 4 is movably supported by the gantry support means 5 on the fixed gantry 3, a plurality of wheels W of different sizes are extracted from the tire T and separated by the wheel extraction device 1 of the present embodiment. And convenience in use can be improved.

  In the above-described embodiment, the first tire cradle 6 supports the first tire portion T1 of the tire T, and the second tire cradle 10 supports the second tire portion T2 of the tire T. However, in another embodiment of the present invention, the second wheel portion W2 is supported together with the first tire portion T1 by the wheel pedestal 13 without or using the first tire cradle 6. May be.

  Even in the case of adopting such a configuration, the first tire portion T1 is supported by the first tire cradle 6 and the second tire portion T2 is supported by the second tire cradle 10; While the same effect can be produced, when the first tire cradle 6 is not provided, the number of parts can be reduced and the apparatus can be downsized.

DESCRIPTION OF SYMBOLS 1 Wheel extraction apparatus 2 Floor 3 Fixed mount frame 4 Moving mount frame 5 Mount support means 6 1st tire receiving stand 7 1st tire press means 8 Wheel extraction means 9 Wheel support means 10 2nd tire receiving stand 11 Tire raising means 12 1st 2 tire pressing means 13 wheel receiving base 14 hydraulic oil supply device 17, 19 support plate 23 bottom structure 24a-24d support 25 upper structure 26 operation panel 31 lower frame 32 upper frame 33 coupling body 37 first tire pressing member 38 Guide member 39 Movable attachment body 41 Second tire pressing member 61, 81 Wheel support member 51 Tire lifting member 71 Wheel extraction member

Claims (3)

A wheel extraction device for extracting a wheel mounted on a tire from the tire,
A tire cradle supporting a first tire portion on one side with respect to a virtual plane including the axis of the wheel of the tire;
A wheel receiver disposed horizontally adjacent to the tire cradle and supporting a second tire portion on the other side with respect to the virtual one plane of the tire and a wheel portion on the other side with respect to the virtual one plane of the wheel. Stand,
A first tire pressing means disposed above the tire cradle and deformed by pressing the first tire portion supported by the tire cradle from above;
A tire pushing means for pushing up a second tire portion disposed adjacent to the wheel cradle and supported by the wheel cradle upward from the wheel cradle;
A second tire pressing means disposed above the wheel cradle and deformed by pressing from above the second tire portion pushed up from the wheel cradle by the tire lifting means;
A wheel extraction device, comprising: a wheel extraction means disposed above the tire cradle and pressing a wheel portion on one side with respect to the virtual plane of the wheel from above to extract the wheel from the tire. apparatus.   The tire cradle is movably provided between a support position for supporting a wheel portion on one side with respect to the virtual plane and a predetermined retreat position retracted to a side farther from the wheel cradle than the support position. The wheel extracting device according to claim 1, further comprising wheel support means. A fixed gantry provided with the tire cradle, the first tire pressing means and the wheel extraction means;
A moving gantry provided with the tire lifting means, the second tire pressing means and the wheel cradle;
Gantry support means for movably supporting the movable gantry on the fixed gantry in a direction in which the wheel cradle approaches the tire cradle and in a direction in which the wheel cradle is separated from the tire cradle. The wheel extraction device according to claim 1, wherein the wheel extraction device is included.

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