| 摘要 |
A device for loading and unloading objects onto a truck including two support members and a rigid substantially L-shaped support. The support members and rigid substantially L-shaped member are subject to force from at least 3 actuators. The operation of actuators maintains the horizontal portion of the rigid L-shaped member in substantially horizontal orientation during the flexion and extension of the joints connecting the members, and the joint connecting the device to the truck.
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