Handling: hand and hoist-line implements – Grapple – Load shifting
Patent
1995-08-03
1997-05-13
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Load shifting
2941031, 294902, 414622, 414662, 901 39, B25J 1500
Patent
active
056285396
ABSTRACT:
A robotic gripping device comprises a fixed frame, and a hold down plate vertically moveable in relation to the fixed frame between a raised release position and a lowered hold down position. A moveable support platform retained by the fixed frame is moveable between an extended position where the support platform is opposed to the hold down plate to permit the retention of packages therebetween, and a retracted position where the support platform is no longer opposed to the hold down plate. The support platform further comprises pairs of generally parallel side members, with roller members disposed between each pair of side members, and a belt member looped around the roller members. A package receiving portion of the belt member faces the hold down plate when the support platform is in its extended position. A securing member disposed between the fixed frame and a fixed end portion of each belt member, so as to thereby secure a fixed end portion of the package receiving portion of the belt member in horizontally stationary relation with respect to the hold down plate. Accordingly, the segment of the package receiving portion of the belt member remains horizontally stationary during horizontal movement of the support platform, thus allowing easy removal of the support platform from beneath a package. Further, the hold down plate has a plurality of dynamically activated ring-shaped entrapment members that help preclude undesired lateral movement of a package.
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Muchalov Ivan
Pham Thanh
Cherry Johnny D.
Hewson Donald E.
IM Engineered Product Ltd.
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