| 摘要 |
A hitch assembly is mounted beneath a bed of a truck. The hitch assembly includes a frame, a platform displaceable relative to the frame, a hitch ball carried on the platform and an expandable body carried on the frame between a portion of the frame and the platform. By expanding the expandable body the platform and hitch ball are raised into a towing position. By contracting the expandable body, the platform and hitch ball are lowered into a storage position.
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