Cover assembly

Claim 1

A cover assembly for a truck having a front cab portion and a rear tiltable open dump body, said cover assembly comprising a flexible cover, a rotatable rod at the front end of the open body, said cover being rolled around said rod and having one end mounted thereon, a cover pulling bar extending across the top of the open body and movable from one end of the open body to the other end of the open body, the other end of said cover being mounted on said pulling bar, a rotatable gear mechanism for controlling the rotation of said rod, said gear mechanism comprising a first sprocket mounted on the rotatable rod and a power source, said power source including a second sprocket and a chain connecting said first and second sprockets together, means for rotating the rotatable gear mechanism in one direction to rotate the rod in one direction to unroll the cover, means for moving the pulling bar toward the rear of the open body in one direction while the rod is being rotated in said one direction to move the cover to a body-covering position, means for rotating the rotatable gear mechanism in the opposite direction to rotate the rod in the opposite direction to roll up the cover and move the cover pulling bar toward the front of the open body, said cover pulling bar mounted on the upper ends of a pair of arms extending from opposite ends of the pulling bar along the sides of the open body, the lower ends of said arms are pivoted on a lower common shaft which extends transversely of and below the open body, said shaft being pivotally mounted below the open body, a finger extending from said lower shaft in a direction away from said arms, said finger being located below said open body, said bar-moving means comprising a spring, an adjustment bolt mounted on the forward portion of and below said open body, said spring having one end connected to said finger and its other end connected to said adjustment bolt and being spaced below said body when said cover is in its open position, the tension of the spring being adjustable by rotating the said adjustment bolt and lock clips adjacent the rear of the open body to hold the arms in the cover-closing rear position.