Land vehicles: bodies and tops – Tops – Roll-up covers
Patent
1989-06-06
1991-03-26
Focarino, Margaret A.
Land vehicles: bodies and tops
Tops
Roll-up covers
B60J 1100
Patent
active
050023284
ABSTRACT:
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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Focarino Margaret A.
Pape Joseph D.
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