Drive system for flexible cover

Details Drive system for flexible cover Drive system for flexible cover

B - Operations, Transporting

60

P

296/100

B60P 7/04 (2006.01) B60J 7/08 (2006.01)

Patent

CA 2004698

ABSTRACT OF THE DISCLOSURE The present invention relates to a motorized drive system for covering and uncovering the top of an open truck box or the like and comprises a laterally operated roll tube for winding and unwinding a flexible cover over the top of a truck box. One lateral edge of the cover is fixed to one side edge of the box opening, and the other lateral edge is attached to a roll tube. A reversible rotary motor rotates the roll tube, in conjunction with an extensible pivot arm and a cable return mechanism utilizing a tapered grooved sheave to provide constant tension and to facilitate smooth and consistent rectilinear movement of the roll tube for winding and unwinding of the cover.

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