Patent ID: 6893071

Claim:
A roll-up truck cover assembly for use on trucks having a generally rectangular open truck body defined by upstanding opposite side and end walls; said cover assembly comprising: a generally rectangular flexible top cover which is substantially co-extensive with the opening of said truck body; said top cover having one end attached to one of said end walls of said truck body; a take-up roll for said flexible top cover having opposite ends, said take-up roll being attached to an opposite end of said cover and extending substantially across its width, said take-up roll having an associated biasing member tending to rotate the roll in a take-up operation of the cover; a pair of elongated swinging arms one of each of which is positioned adjacent to one of said opposite side walls of said truck body, each of said swinging arms comprising first and second elongated members at least one of which is tubular and the other of which is telescopically and retractably mounted within said tubular member such that the length of said arms is variable and can be changed by sliding one member in or out of the other, said first member being rotatably connected to one of said opposite ends of said take-up roll and said second member being pivotally mounted to a lower end portion of one of said opposite side walls of said truck body; a pair of rollers one of each of which is rotatably mounted onto one of a pair of shafts, each one of said shafts being attached to said first elongated member; biasing means provided within said tubular first or second member; a pair of elongated guide roller tracks one of each of which is mounted substantially longitudinally to one of said opposite side walls of said truck body; each one of said pair of rollers being moveable engaged within one of said pair of roller tracks; and means for pivotally moving said pair of swinging arms longitudinally along said opposite side walls of said truck body in an arch-like manner from one opposite end to the other, the arrangement being such that movement of said rollers along said guide tracks causes said first or second member to retract within the other tubular member thereby keeping to a minimum the height to which said take-up roll and cover can be raised above said truck body.