JP6528702B2 - Vehicle lifting device - Google Patents

Description

  The present invention relates to a vehicle lifting apparatus for supporting a vehicle while positioning a tire of the vehicle.

  Conventionally, there exists Unexamined-Japanese-Patent No. 2005-059702 as a technique of such a field. The vehicle lifting device described in this publication includes a pair of support rods disposed to sandwich the vehicle transported along the transfer rail, a lifting member moving up and down along the pair of support rods, and a lifting member And a roller-like tire support portion for supporting a lower outer periphery of the tire such that a lower portion of a tire provided in the vehicle is exposed downward.

  By using this vehicle lifting device, the vehicle transported in the vicinity of the floor is lifted, and the operator gets into the lower part of the vehicle to work around the lower part of the vehicle body, and then descends to the floor vicinity to continue the transport. be able to. Further, in the vehicle lifting device, since the tire support portion supports the outer peripheral lower portion of the tire, it is possible to absorb an impact generated when the vehicle is moved downward by the tire. Further, since the lower portion of the tire is exposed below the tire support portion, the tire can absorb an impact generated when the vehicle is lowered.

Japanese Patent Application Publication No. 2005-059702

However, in the conventional vehicle lifting apparatus described above, when an earthquake or the like occurs when the vehicle is lifted, the tire may get over the tire support and the vehicle may drop from the vehicle lifting apparatus. Here, in the case where the fall prevention is realized by providing the actuator and the control device in the vehicle lifting and lowering device, there is a problem that the thickness and size become large, the time for maintenance and inspection increases, and the device becomes expensive.
SUMMARY OF THE INVENTION The present invention provides a vehicle lifting device that achieves fall prevention of a vehicle with a simple configuration.

A vehicle lifting and lowering device according to the present invention is a vehicle lifting and lowering device for lifting and lowering a vehicle in a state of supporting a tire, which comprises a pair of first struts disposed across the vehicle and the first struts. An elevator unit for moving up and down, a tire support unit connected to the elevator unit and supporting a tire provided on the vehicle, and a fixing bar disposed at a predetermined height above the tire support unit; The tire support portion supports a lower portion of the tire, which is disposed on the base and a second support post extending in the vertical direction and connecting the base and the elevating unit. A drop preventing portion having a tire mounting portion, a central axis fixed to the second support, and a pair of links intersecting on the central axis and having a lower end portion sandwiching the front and rear of the tire And the fall prevention unit is operated by the operation of the elevation unit. 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.
Thus, the angle of the link is changed so that the position of the tire bar disposed at the lower end of the link becomes the position where the tire does not move easily when the vehicle is lifted, and the vehicle in the front and rear direction on the tire support portion It is possible to suppress operation.

  This makes it possible to prevent the vehicle from falling with a simple configuration.

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
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the vehicle lifting apparatus 1 includes a pair of first supports 11 disposed on the left and right of the transported vehicle, and a lifting unit 12 connected to the supports 11 and moving up and down along the supports 11. A tire support 13 for mounting a tire provided on the vehicle and moving the vehicle up and down by moving up and down in conjunction with the elevation of the elevating unit 12; and a fixing bar 14 disposed immediately above the tire support 13. Equipped with The vehicle lifting device 1 includes a left lifting device 2 for loading and lifting a tire disposed on the left side of the vehicle, and a right lifting device 3 for loading and lifting a tire disposed on the right of the vehicle. It is formed by The left side lifting device 2 and the right side lifting device 3 face each other across the transported vehicle and have the same configuration. In the following, the vehicle will be described as being a four-wheeled automobile.

  The first support columns 11 are arranged to sandwich the transport line on which the vehicle is transported. That is, the first lift 11 and the right lift 3 are provided with one first support 11 respectively. As shown in FIG. 2, the first support columns 11 extend vertically on the floor, and are provided to extend, for example, longer than two vehicle heights. The first support column 11 is provided with a guide rail for operating the elevation unit 12 only in the vertical direction. Note that a power source such as a servomotor for raising and lowering the elevation unit 12 may be disposed above the first support 11.

  The elevating unit 12 includes an elevating body 21 performing elevating motion with respect to the column 11, and an elevating bar 22 connected to the elevating body 21 and substantially parallel to the floor and extending in the longitudinal direction of the vehicle. .

  The elevating body 21 moves up and down along the 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 described later is connected to each of the front end portion and the rear end portion of the lift bar 22 via a second support column 33.

  As shown in FIG. 3, the tire support portion 13 has a base 31, a pair of rollers (tire mounting portions) 32 disposed in parallel on the base 31, and a center in the front-rear direction with respect to the pair of rollers 32. The second support 33 is disposed and extends in the vertical direction, and the fall prevention unit 34 having a pair of links 34 b in which the central axis 34 a is fixed to the second support 33. The front end portion and the rear end portion of the two lifting bars 22 of the left side lifting device 2 and the tire support portion 13 provided by respectively connecting the front end portion and the rear end portion of the lifting bar 22 of the right lifting device 3 It supports the tires of the transported vehicles. Hereinafter, one of the four tire support portions 13 will be described.

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

  The pair of rollers 32 is disposed on the base 31 so as to extend in the left-right direction. For example, with the pair of rollers 32, when the transported vehicle is placed on the base 31, the lower portion of the tire is in a state where a part of the tire protrudes slightly downward between the pair of rollers 32. It is in a state of pinching

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

  The drop prevention unit 34 has a central axis 34 a and a pair of links 34 b arranged to intersect at the central axis 34 a.

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

  The central portions of the pair of links 34b are rotatably connected to the central shaft 34a. The upper end portion 34c of the pair of links 34b is provided with an open / close bearing 34e that contacts the fixing bar 14 when the tire support portion 13 ascends, and the lower end portion 34d is provided with a tire bar 34f projecting to the vehicle side It is done. That is, when the vehicle is placed on the roller 32 of the base 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 in a state of not contacting the tire.

  As shown in the lower part of FIG. 4, when the vehicle is disposed in the vicinity of the floor and the upper end 34 c of the link 34 b is not in contact with the fixing bar 14, the distance between the lower ends 34 d is narrowed. It is arranged by. For example, one pair of links 34b is inclined about 40 ° clockwise about the central axis 34a from the state extending in the vertical direction, and the other is inclined about 40 ° counterclockwise. It is. Further, as shown in the upper part of FIG. 4, in the link 34b, when the tire support portion 13 ascends, the open / close bearing 34e of the upper end portion 34c abuts against the fixing bar 14 to make the distance between the upper end portions 34c in the front-rear direction Spread out. As a result, the distance between the lower end portions 34d is increased, and the lower end portions 34d are pulled up. For example, in a state in which the distance between the lower end portions 34d is expanded, one of the links 34b is inclined approximately 65 ° clockwise about the central axis 34a from the state of extending in the vertical direction And the other is inclined approximately 65 degrees 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 fixing bar 14 is fixed from above by a frame 41 connected to the floor, and is disposed immediately above the link 34 b of the fall prevention unit 34. The fixing bar 14 is provided long enough to maintain the state in which the upper end 34c abuts on the fixing bar 14 even when the upper end 34c of the link 34b is in a spread state.

  Next, with reference to FIG. 4, an operation at the time of lifting the vehicle using the vehicle lifting device 1 will be described. In FIG. 4, the elevation unit 12 is omitted to make the drawing easier to understand.

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

  Next, the tire of the vehicle is placed on the tire support portion 13. At this time, the link 34b of the fall prevention unit 34 is in a state where the distance between the lower end portions 34d is narrowed and folded, and the tire bar 34f is at a position lower than the lower portion of the tire of the vehicle being transported. Therefore, the transported tire of the 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 elevating operation along the support 11. Thereby, the tire support part 13 connected with the raising / lowering part 12 raises, and a vehicle raises.

  Next, the upper end portion 34 c of the link 34 b of the fall prevention unit 34 abuts against the fixing bar 14 by raising the elevating unit 12.

  Thereafter, the lifting unit 12 is further lifted. At this time, since the upper end portion 34c of each of the pair of links 34b is in contact with the fixing bar 14, the movement between the upper end portion 34c is narrowed from the narrowed state around the central axis 34a. Do. As a result, in the lower end portions 34d of the pair of links 34b, the distance between the lower end portions 34d of each other is expanded in conjunction with the operation to expand the distance between the upper end portions 34c, and the respective lower end portions 34d are pulled up. It will be in the state of being Here, the position of the tire bar 34f disposed at a position lower than the lower portion of the tire is pulled up to a height approximately at the center of the tire in the vertical direction.

  As a result, in the vehicle lifting apparatus 1, the force for moving the vehicle in the front-rear direction due to an earthquake or the like is applied, and even if the tire is likely to get over the roller 32, the pulled-up tire bar 34f is approximately at the center of the tire. Contact at the height of Therefore, the tire can not 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 rises, 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 at which the tire does not move easily. It is possible to suppress movement in the front-rear direction.

  At this time, since the operation of the pair of links 34b for pulling up the tire bar 34f is executed by the upper end 34c of the link 34b contacting the fixing bar 14 in response to the elevation of the elevation unit 12, the link 34b is operated. There is no need for a special power source to make it possible to prevent the vehicle from falling with a simple configuration.

  The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the scope of the present invention. For example, although the fixing bar 14 is described as being fixed by the frame 41 connected to the floor, it 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, you may be fixing methods other than this.

DESCRIPTION OF SYMBOLS 1 vehicle lifting device 2 left lifting device 3 right lifting device 11 first support 12 lifting unit 13 tire support 14 fixed bar 21 lifting bar 22 lifting bar 31 base 32 roller 33 second support 34 drop prevention unit 34 a central axis 34 b A pair of links 34c upper end 34d lower end 34e opening and closing bearing 34f tire bar 41 vehicle carriage

Claims (1)

A vehicle lifting device for lifting a vehicle while supporting a tire, comprising:
A pair of first struts disposed across the vehicle;
An elevation unit which ascends and descends along the first support;
A tire support unit connected to the elevating unit and supporting a tire provided on the vehicle;
A fixing bar disposed at a predetermined height above the tire support portion;
The tire support portion is
The base,
A second support post extending in the vertical 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;
The fall prevention portion having a central axis fixed to the second support and a pair of links intersecting on the central axis and having a lower end portion sandwiching the front and rear of the tire,
The fall prevention unit increases the distance between the lower ends of the pair of links by bringing the upper end of the link into contact with the fixed bar when the vehicle ascends due to the operation of the elevating unit. Vehicle lifting device that pulls up the lower end.

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