Vehicle transport device

Abstract

In a vehicle transport device, a carriage can enter under a vehicle to be transported. The first arm portion has a pair of arms provided to the carriage that can support one of a front wheel or a rear wheel of the vehicle. The second arm portion has a pair of arms provided to the carriage that can support the other of the front wheel or the rear wheel of the vehicle. The acquisition unit acquires size information of the vehicle. The distance adjusting device adjusts a distance between the first arm portion and the second arm portion according to the acquired size information of the vehicle while the vehicle transport device is moving toward the position of the vehicle.

What is claimed is: 
     
         1 . A vehicle transport device comprising:
 a carriage capable of entering under a vehicle to be transported;   a first arm portion provided to the carriage, the first arm portion having a pair of arms capable of supporting one of a front wheel or a rear wheel of the vehicle;   a second arm portion provided to the carriage, the second arm portion having a pair of arms capable of supporting the other of the front wheel or the rear wheel of the vehicle;   an acquisition unit that acquires size information of the vehicle; and   a distance adjusting device that adjusts a distance between the first arm portion and the second arm portion according to the acquired size information of the vehicle while the vehicle transport device is moving toward a location of the vehicle.   
     
     
         2 . The vehicle transport device of  claim 1 , further comprising a height adjusting device that adjusts a height of the carriage,
 wherein the height adjusting device lowers the carriage to a position where the carriage can enter under the vehicle while the vehicle transport device is moving toward the location of the vehicle.   
     
     
         3 . The vehicle transport device of  claim 2 ,
 wherein the height adjusting device starts an operation of lowering the carriage when an estimated time until the vehicle transport device arrives in front of or behind the vehicle becomes a time required for the operation of lowering the carriage.   
     
     
         4 . The vehicle transport device of  claim 1 ,
 wherein the distance adjusting device adjusts the distance between the first arm portion and the second arm portion to a distance obtained by adding a wheelbase of the vehicle to a predetermined length for fine adjustment.   
     
     
         5 . The vehicle transport device of  claim 4 ,
 wherein the first arm portion has a first arm and a second arm extending along a left-right direction of the carriage,   wherein the second arm portion has a third arm and a fourth arm,   wherein the second arm, the third arm, and the fourth arm are each rotatable between a first position extending along a front-rear direction of the carriage and a second position extending along the left-right direction of the carriage,   wherein the first arm, the second arm, the third arm, and the fourth arm are arranged along the front-rear direction in this order,   wherein the carriage enters under the vehicle from the fourth arm side with the second arm, the third arm, and the fourth arm in the first position, when the vehicle transport device arrives in front of or behind the vehicle,   wherein the third arm rotates to the second position and the carriage moves until the third arm hits the other wheel when the third arm enters between the front wheel and the rear wheel of the vehicle,   wherein the fourth arm rotates to the second position when the carriage stops, whereby the third arm and the fourth arm clamp the other wheel,   wherein the distance adjusting device moves the first arm portion toward the second arm until the first arm hits the one wheel, when the third arm and the fourth arm clamp the other wheel, and   wherein the second arm rotates to the second position when the first arm section stops, whereby the first arm and the second arm clamp the one wheel.