JP2017154853A - Vehicle lifting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize falling prevention of a vehicle by a simple construction.SOLUTION: A vehicle lifting apparatus comprises: a pair of first props 11; an elevation part 12 elevating along the first props 11; a tire supporting part 13 which is connected to the elevation part 12 and supports vehicular tires; a fixation bar 14 arranged at a predetermined height at the upper side of the tire supporting part 13. The tire supporting part 13 comprises: a base part 31; a second prop 33 which extends in vertical direction and connects the base part 31 and the elevation part 12; a falling prevention part 34 which comprises a tire loading part supporting a lower part of the tires loaded, a central axis fixed onto the second prop, and a pair of links which cross on the central axis and are arranged in a manner where lower end parts thereof sandwich front and rear sides of the tires. When a vehicle is upwardly elevated by an action of the elevation part 12, by virtue that upper edge parts of the links contact to the fixation bar 14, the falling prevention part 34 expands the distance between lower end parts of the pair of links and lifts each of the lower end parts.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle lifting device that supports a vehicle while positioning a tire of the vehicle.

  Conventionally, as a technique in such a field, there is JP-A-2005-059702. The vehicle elevating device described in this publication is connected to a pair of struts arranged so as to sandwich a vehicle transported along a transport rail, a lift body that moves up and down along the pair of struts, and the lift body. And a roller-shaped tire support portion that supports the lower peripheral portion of the tire so that the lower portion of the tire provided in the vehicle is exposed downward.

  By using this vehicle lifting device, the vehicle transported in the vicinity of the floor is raised, the operator enters the lower part of the vehicle and works around the lower part of the vehicle body, and then is lowered to the vicinity of the floor to continue the transport. be able to. Moreover, in this vehicle lifting / lowering apparatus, since the tire support portion supports the lower outer periphery of the tire, the tire can absorb the impact generated when the vehicle is lowered. Moreover, since the lower part of the tire is exposed below the tire support part, the impact generated when the vehicle is lowered can be absorbed by the tire.

JP-A-2005-059702

However, in the conventional vehicle elevating device described above, when an earthquake or the like occurs when the vehicle is raised, the tire may get over the tire support and the vehicle may fall from the vehicle elevating device. Here, when the fall prevention is realized by providing the actuator and the control device in the vehicle elevating device, there is a problem that it becomes heavy and heavy, increasing the labor for maintenance and inspection, and increasing the cost of the device.
The present invention provides a vehicle lifting / lowering device that achieves vehicle fall prevention with a simple configuration.

A vehicle lifting / lowering device according to the present invention is a vehicle lifting / lowering device that lifts and lowers a vehicle while supporting a tire, along a pair of first struts arranged with the vehicle interposed therebetween, and the first struts. An elevating part that moves up and down, a tire support part that is connected to the elevating part and supports a tire provided in the vehicle, and a fixed bar disposed at a predetermined height above the tire support part, The tire support portion extends in a vertical direction, a second support column that connects the base portion and the elevating portion, and is disposed on the base portion and supports a lower portion of the tire that is placed. A fall prevention unit having a tire placement unit, a central axis fixed to the second support column, and a pair of links that intersect with the central axis and that have lower ends sandwiching the front and rear of the tire And the fall prevention part is formed by the operation of the elevating part. When the vehicle is raised, the upper end of the link to the fixed bar by abutment, both increase the distance between the lower ends of the pair of links, pulls the lower end of each.
As a result, in the state where the vehicle is raised, the angle of the link is changed so that the position of the tire bar arranged at the lower end portion of the link becomes a position where the tire becomes difficult to move, and the vehicle is moved in the front-rear direction on the tire support portion. It can suppress operating.

  Thereby, the fall prevention of a vehicle is realizable with a simple structure.

It is a figure which shows the outline of a vehicle raising / lowering apparatus. It is a figure which shows a left side raising / lowering apparatus. It is an enlarged view of a tire support part. It is a figure which shows operation | movement of a fall prevention part.

Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the vehicle elevating device 1 includes a pair of first support columns 11 arranged on the left and right sides of the conveyed vehicle, and an elevating unit 12 that is connected to the support columns 11 and moves up and down along the support columns 11. A tire support 13 for placing a tire provided on the vehicle and moving the vehicle up and down in conjunction with the lifting and lowering of the lifting unit 12; and a fixing bar 14 disposed immediately above the tire support unit 13; Is provided. The vehicle elevating device 1 includes a left elevating device 2 that raises and lowers a tire arranged on the left side of the vehicle, a right elevating device 3 that elevates and lowers a tire arranged on the right side of the vehicle, It is formed by. The left elevating device 2 and the right elevating device 3 face each other with the transported vehicle in between, and have the same configuration. In the following description, the vehicle is assumed to be a four-wheeled vehicle.

  The 1st support | pillar 11 is arrange | positioned so that the conveyance line in which a vehicle is conveyed may be pinched | interposed. That is, the left lifting device 2 and the right lifting device 3 are each provided with one first support column 11. As shown in FIG. 2, the 1st support | pillar 11 is provided so that it may extend in the up-down direction on a floor, for example, may extend longer than two vehicle height. The first support column 11 is provided with a guide rail for operating the lifting unit 12 only in the vertical direction. Note that a power source such as a servo motor for raising and lowering the elevating unit 12 may be disposed on the first column 11.

  The elevating unit 12 includes an elevating body 21 that elevates the column 11 and an elevating bar 22 that is connected to the elevating body 21 and extends substantially parallel to the floor and extends in the front-rear direction of the vehicle. .

  The elevating body 21 operates in the vertical direction along the support column 11 based on the power from the power source. The elevating bar 22 extends in the front-rear direction of the vehicle with a length substantially the same as the length from the front wheel to the rear wheel of the vehicle. Further, a base portion 31 of a tire support portion 13 to be described later is connected to each of the front end portion and the rear end portion of the elevating bar 22 via a second support column 33.

  As shown in FIG. 3, the tire support portion 13 has a base portion 31, a pair of rollers (tire mounting portions) 32 arranged in parallel on the base portion 31, and a center in the front-rear direction with respect to the pair of rollers 32. A second support column 33 that is arranged and extends in the up-down direction, and a fall prevention unit 34 that has a pair of links 34b with a center axis 34a fixed to the second support column 33 are provided. The tire support 13 provided by connecting the front end and the rear end of the two lifting bars 22 of the left lifting device 2 and the front end and the rear end of the lifting bar 22 of the right lifting device 3, respectively, Supports the tires of each transported vehicle. Hereinafter, one of the four tire support portions 13 will be described.

  The base 31 is disposed below the vehicle tire. Since the base 31 is connected to the lift bar 22 via the second support column 33, the base 31 moves up and down according to the lift operation of the lift unit 12.

  The pair of rollers 32 are arranged on the base portion 31 so as to extend in the left-right direction. For example, in the pair of rollers 32, when the vehicle being transported is placed on the base 31, a part of the tire slightly protrudes downward between the pair of rollers 32, and the lower part of the tire Is in a state of being sandwiched.

  The second support column 33 extends in the vertical direction so that the lower end portion is connected to the base portion 31 and the upper end portion is connected to the elevating bar 22. The second support column 33 is disposed between the pair of rollers 32 when viewed from the side. That is, when the vehicle is placed on the base 31, the vehicle is disposed on the outer side in the left-right direction with respect to the vehicle and substantially the same as the center in the front-rear direction with respect to the tire. In addition, the second support column 33 is connected to the outer side in the left-right direction in the base portion 31 and is disposed adjacent to the tire when the vehicle is disposed on the roller 32. A central axis 34 a of the fall prevention part 34 is connected to the center part of the second column 33.

  The fall prevention unit 34 includes a central axis 34a and a pair of links 34b arranged to intersect with the central axis 34a.

  The center shaft 34a is connected to the second support column 33 so that the height of the rotation center of the tire is substantially the same as the height of the center shaft 34a when the vehicle is placed on the base 31. .

  The center part of a pair of link 34b is connected in the state which can be rotated with respect to the center axis | shaft 34a, respectively. An open / close bearing 34e is provided at the upper end 34c of the pair of links 34b so as to come into contact with the fixed bar 14 when the tire support 13 is raised, and a tire bar 34f protruding toward the vehicle is provided at the lower end 34d. It has been. That is, when the vehicle is placed on the roller 32 of the base portion 31, the tire bar 34f is disposed in the vicinity of the outer periphery of the tire so as to sandwich the tire from the front and rear without contacting the tire.

  As shown in the lower part of FIG. 4, when the vehicle is arranged in the vicinity of the floor and the upper end 34c of the link 34b is not in contact with the fixed bar 14, the distance between the lower ends 34d is reduced. Is arranged in. For example, the pair of links 34b is in a state where one of the links 34b is inclined about 40 ° clockwise around the central axis 34a and the other is inclined about 40 ° counterclockwise from the state extending in the vertical direction. It is. Further, as shown in the upper part of FIG. 4, the link 34b has a distance between the upper end portions 34c in the front-rear direction when the tire support portion 13 rises and the open / close bearing 34e of the upper end portion 34c contacts the fixed bar 14. To be spread. Thereby, while the distance between the lower end parts 34d is expanded, the lower end part 34d will be in the state pulled up. For example, the state in which the distance between the lower end portions 34d is widened means that the pair of links 34b is in a state in which one of the links 34b is inclined about 65 ° clockwise around the central axis 34a from the state extending in the vertical direction. And the other is tilted about 65 ° counterclockwise.

  As shown in FIGS. 1 and 2, the fixing bar 14 is disposed at a predetermined height in a state of extending in the front-rear direction of the vehicle. The fixed bar 14 is fixed from above by a frame 41 connected to the floor, and is disposed immediately above the link 34b of the fall prevention unit 34. The fixed bar 14 is provided long enough so that the upper end 34c can be kept in contact with the fixed bar 14 even when the upper end 34c of the link 34b is expanded.

  Next, with reference to FIG. 4, the operation | movement at the time of raising a vehicle using the vehicle raising / lowering apparatus 1 is demonstrated. In FIG. 4, the illustration of the elevating part 12 is omitted for easy understanding of the drawing.

  First, the lower part of the vehicle body is transported to the vehicle lifting / lowering device 1 in a state where the lower part of the vehicle body is placed on the vehicle transport carriage 41. Thus, the vehicle is disposed at a position sandwiched between the pair of support columns 11. At this time, in the elevating part 12, the elevating bar 22 is in a lowered state, and the tire support part 13 is in a sufficiently low position near the floor.

  Next, the vehicle tire is placed on the tire support portion 13. At this time, the link 34b of the fall prevention part 34 is in a state where the distance between the lower end parts 34d is narrowed and the tire bar 34f is positioned lower than the lower part of the tire of the vehicle being transported. Therefore, the tire of the conveyed vehicle is placed on the roller 32 without contacting the tire bar 34 f of the fall prevention unit 34.

  Next, the elevating unit 12 performs an ascending operation along the column 11. Thereby, the tire support part 13 connected with the raising / lowering part 12 raises, and a vehicle raises.

  Next, as the elevating part 12 moves up, the upper end part 34 c of the link 34 b of the fall prevention part 34 comes into contact with the fixed bar 14.

  Thereafter, the elevating unit 12 is further raised. At this time, since the upper end portions 34c of the pair of links 34b are in contact with the fixed bar 14, the operation is performed so that the space between the upper end portions 34c is narrowed from the narrowed state around the central axis 34a. To do. Thereby, in the lower end 34d of the pair of links 34b, the distance between the lower ends 34d is increased in conjunction with the operation so that the distance between the upper ends 34c is increased, and the respective lower ends 34d are pulled up. It will be in the state. Here, the position of the tire bar 34f arranged at a position lower than the lower portion of the tire is pulled up to a height of approximately the center in the vertical direction of the tire.

  As a result, the vehicle elevating device 1 is applied with a force that causes the vehicle to move in the front-rear direction due to an earthquake or the like, and even if the tire is likely to get over the roller 32, the raised tire bar 34f is about the center of the tire. Contact at a height of. Therefore, the tire cannot get over the tire bar 34f, and the vehicle can be prevented from falling from the tire support portion 13 in the front-rear direction. In other words, when the vehicle is in a raised state, the angle of the link 34b of the fall prevention unit 34 is changed, and the position of the tire bar 34f becomes a position where the tire becomes difficult to move. It can suppress operating in the front-rear direction.

  At this time, the operation of the pair of links 34b for pulling up the tire bar 34f is performed by the upper end portion 34c of the link 34b coming into contact with the fixed bar 14 as the elevating unit 12 is raised. No special power source is required to prevent the vehicle from falling, and the vehicle can be prevented from falling with a simple configuration.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, the fixed bar 14 is described as being fixed by the frame 41 connected to the floor, but may be fixed to a ceiling or the like. Moreover, although the tire mounting part was demonstrated as what is a pair of roller 32, other fixing methods may be sufficient.

DESCRIPTION OF SYMBOLS 1 Vehicle raising / lowering apparatus 2 Left side raising / lowering apparatus 3 Right side raising / lowering apparatus 11 1st support | pillar 12 Elevating part 13 Tire support part 14 Fixed bar 21 Elevating body 22 Elevating bar 31 Base 32 Roller 33 2nd support | pillar 34 Fall prevention part 34a Center axis 34b Pair of links 34c Upper end portion 34d Lower end portion 34e Open / close bearing 34f Tire bar 41 Vehicle transport cart

Claims (1)

A vehicle lifting device that lifts and lowers a vehicle while supporting a tire,
A pair of first struts arranged across the vehicle;
An elevating part that ascends and descends along the first column;
A tire support unit coupled to the elevating unit and supporting a tire provided in the vehicle;
A fixed bar disposed at a predetermined height above the tire support,
The tire support is
The base,
A second column extending in the up-down direction and connecting the base and the elevating unit;
A tire mounting portion disposed on the base and supporting a lower portion of the mounted tire; and
A central axis fixed to the second support column, and a fall prevention unit having a pair of links that intersect with the central axis and that have lower ends sandwiched between the front and rear of the tire,
When the vehicle is lifted by the operation of the elevating part, the fall prevention part makes the upper end part of the link come into contact with the fixed bar, thereby increasing the distance between the lower end parts of the pair of links. A vehicle lifting device that pulls up the lower end.

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