| 摘要 |
A roll-up truck cover assembly for dump trucks and the like having upstanding side and end walls defining an upwardly open body for receiving particulate material which may project upwardly in a heaped or humped configuration beyond the sides of the body. The cover assembly comprises a flexible top cover substantially co-extensive with the body cross-section viewed from above and the cover extends across and is attached to a front wall of the body above the side walls with side skirts laterally closing the area adjacent front and side wall junctions. A take-up roll for the flexible cover has a spring bias for rotation in a take-up direction and is mounted on a pair of arms at upper end portions of the latter. Lower end portions of the arms are pivotally attached externally at sides of the truck body for swinging the take-up roll through an arc in a lengthwise traverse of the truck body. In one embodiment a hand crank and cable system swings the arms in a direction opposite the spring biased take-up.
|
