Conveyors: power-driven – Conveying apparatus entirely supported by mobile ground...
Patent
1987-10-13
1989-05-23
Spar, Robert J.
Conveyors: power-driven
Conveying apparatus entirely supported by mobile ground...
198777, 180 71, 180 81, 180 86, B65G 2500
Patent
active
048321680
ABSTRACT:
A cargo handling device is provided. In a preferred embodiment, the device comprises a substrate having at least one motivation mechanism mounted thereon. In other embodiments, the substrate may include more than one motivation mechanism. The motivation mechanism comprises a plurality of pairs of oppositely directed foot members; each pair of foot members comprising a first hinged member and a second hinged member. The first hinged member of each pair is selectively actuatable independently of the second member of each pair of foot members. Each hinged member generally comprises a hinge-shaped member having one hinged side mounted to the substrate and the other hinged side movable with respect thereto. For the preferred embodiment movement is generated by means of fluid bladder positioned between the two hinge member sides. When operated according to a preferred sequence, the device may be utilized in a first mode to move a substrate across a surface, such as a warehouse floor or a truck bed. When operated according to a second mode, with the foot members directed upwardly and against the under side of cargo, the cargo may be selectively moved according to a selected path. In one embodiment, a preferred foot member shape is described, to facilitate lateral movement.
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Bidwell James R.
Cargo Walker, Inc.
Spar Robert J.
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