| 摘要 |
PURPOSE:To improve safety at the time of collision so as to allow a body to be shifted over the head of a cab by configurating a device in such a way that a rear axle is connected movably up and down through rods, and a body support frame, the rear section of which is sloped afterward, is provided over a frame. CONSTITUTION:When a hoist cylinder is extended, as a body 9 is swung afterward with center at a lower support through a suspension 10, the rear end of the body 9 is moved down to the lower position with respect to ground when dumping is in operation. Then, when the cylinder 11 is contracted, the body 9 is restored in such a way that it is secured while being pressed against the body support frame 6 of a frame 1, but is still supported by the cylinder 11. Besides, when a truck is running, the rear end of the body 9 is supported by a suspension 10, and a moving force of the body 9 to the forward direction is supported by both the support frame 6 and the cylinder 11. Moreover, even if the body 9 moves forward at the time of collision on impact, the body 9 moves forward over the head of a cab 2 along the slope of the support frame 6, so this does not permit the body 9 to hit against the cab 2.
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