Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Patent
1994-03-11
1996-06-11
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Pivoted jaws
294 88, 4147902, B65G 5900, B66C 142
Patent
active
055249477
ABSTRACT:
A self-contained pick-and-place apparatus for respectively engaging and releasing an elongate group of stacked articles such as an elongate stack of nested can ends comprises an elongate pivot shaft defining a longitudinal axis, a pair of elongated gripping members for surroundingly engaging the articles, and pivot arms coupled with the gripping members and mounted to the pivot shaft for bidirectional pivotal motion about the longitudinal axis for thereby moving the gripping members respectively toward and away from each other. The pivot arms are biased to pivot in a direction for moving the gripping members toward each other. One or more cams are supported by the pivot shaft for movement between a pivot arm open position and a pivot arm closed position. Cam followers are mounted to the pivot arms and follow the cams for overcoming the biasing force and pivoting the pivot arms in a direction for moving the gripping members away from each other when the cams are in the pivot arm open position and for permitting the biasing of the pivot arms in a direction for moving the gripping members toward each other when the cams are in the pivot arm closed position. An actuator is supported by the pivot shaft for moving the cams between the pivot arm open position and the pivot arm closed position.
REFERENCES:
patent: 1049839 (1913-01-01), Fraser
patent: 1750878 (1930-03-01), Coe
patent: 2429193 (1947-10-01), Pool et al.
patent: 3155416 (1964-11-01), Buchik et al.
patent: 3938645 (1976-02-01), Farfaglia
patent: 3987905 (1976-10-01), Dechantsreiter
patent: 4979870 (1990-12-01), Mojden et al.
patent: 5119617 (1992-06-01), Mojden et al.
Hoinacki Richard P.
Mojden Andrew E.
Muhr Wayne
Reinhardt Robert L.
Cherry Johnny D.
Fleetwood Systems Inc.
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