초록

A collapsible wheeled material carrier which folds to a storage position when not in use. The carrier has a frame with transversely folding braces and a folding bottom. It also has a folding extensible handle assembly. The carrier can be hand propelled or moved by a vehicle.

대표청구항 ▼

A collapsible wheeled material carrier, comprising: a support frame including a pair of rigid longitudinal side members, said side members having plural rigid foldable brace means extending between them, said brace means having opposed ends pivotally connected to the respective the side members and

A collapsible wheeled material carrier, comprising: a support frame including a pair of rigid longitudinal side members, said side members having plural rigid foldable brace means extending between them, said brace means having opposed ends pivotally connected to the respective the side members and having hinged joints for allowing the brace means to fold along the centerline of the support frame between a contracted position of the support frame wherein the brace means are angularly folded and the side members are positioned adjacent one another and an expanded position of the support frame wherein the brace members are unfolded and arranged perpendicular to the side members and the side members are parallel and transversely spaced apart from one another; a rectangular bottom wall having first and second opposed panel surfaces extending between longitudinal side edges, said longitudinal side edges being pivotally connected to the respective side members, said bottom wall having a hinged joint down its longitudinal center line for foldable movement of the bottom wall between a storage position with the bottom wall clear of the foldable brace means when the support frame is in its contracted position and an operational position with the first panel surface of the bottom wall engaged with and supported by the foldable brace means and side members when the support frame is in its expanded position; and a pair of rotatable wheels independently mounted to the respective side members of the support frame on individual axles aligned along a common transverse axis positioned adjacent to the pivotal connections of one of said brace means and said side members.