Material or article handling – Elevator or hoist and loading or unloading means therefor – Grab
Patent
1993-06-14
1994-08-09
Bucci, David A.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Grab
2941191, 414667, B66F 918
Patent
active
053360397
ABSTRACT:
A load-handling parallel arm clamp structure for a lift truck comprises a slide guide frame having respective upper and lower pairs of elongate, parallel, vertically-spaced transverse slide guides with load-arm supporting slide members longitudinally movable thereon alternatively toward or away from one another in a mutually overlapping longitudinal relationship. Each slide member at least partially surrounds the respective slide guide upon which it is mounted, and each slide guide in turn at least partially surrounds a respective piston and cylinder assembly for moving the slides relative to the guides. The upper and lower pairs of guides are separated by a wide, unobstructed central vertical space through which the operator can view in a forward direction, such space being unoccupied by any view-impeding piston and cylinder assemblies due to their placement inside the guides. A compact fluid manifold and valve arrangement for controlling the piston and cylinder assemblies, together with the space-saving cylinder-enclosing slide guides, minimize the thickness of the entire assembly in the forward direction to maximize load-carrying capacity compatibly with the high degree of operator visibility provided.
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patent: 4960357 (1990-10-01), Laursen
Drawing of Kaup Clamp Slide Structure 1980.
Bucci David A.
Cascade Corporation
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