| 摘要 |
A truck top frame for supporting a fabric cover including two or more bows mounted in truck stake pockets. Each bow having a plurality of nipples mounted thereon facing adjacent bows. Multiple purlins are supported by the bows by a pair of facing nipples. The bows comprise three sections including two vertical sections, a horizontal section and two non-rotating sliding joints therebetween. Each vertical section including a transitional section and its upper end and the horizontal section includes a transitional section at each end thereof. The transitional sections on the horizontal section join the transitional sections on the vertical section in a parallel telescoping relation in two non-rotating joints.
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