Material or article handling – Vertically swinging load support – Grab
Patent
1984-11-30
1986-09-02
Cherry, Johnny D.
Material or article handling
Vertically swinging load support
Grab
29568, 294 864, 294 88, 2941191, 901 39, B23Q 3157, B65G 4790
Patent
active
046093265
ABSTRACT:
A gripping arrangement, particularly for manipulators, tool exchange devi and the like, has a housing, a guide provided in the housing, and two gripping fingers having gripping ends and moveable along the guide of the housing in a translatory reciprocating movement between a gripping position in which the gripping ends receive and hold an object therebetween and the gripping ends extend outwardly beyond the housing, and a releasing position in which the gripping ends release the object and gripping fingers are withdrawn substantially completely into and without projecting beyond the housing, the guide includes arcuate guiding tracks and guiding elements guided in and along the latter so that the movement of the gripping fingers includes a rectilinear component extending in a direction toward the object to be gripped and a transverse component extending transverse to the first component and in a direction toward the object to be gripped, whereby each of the gripping fingers during its movement from the releasing position toward the gripping position performs a rectilinear movement in a direction toward the object on which the transverse component directed toward the object is superposed, the gripping fingers have an axis therebetween and the arcuate guiding tracks are arranged symmetrically relative to the axis, and the gripping ends of the gripping fingers have inner sides and are provided at the inner sides with gripping surfaces which face toward the object in the gripping position and each has a portion embracing the object before its diametrical plane and a portion embracing the object after its diametrical plane.
REFERENCES:
patent: 1729330 (1929-09-01), Dart
patent: 2298145 (1942-10-01), Merrylees
patent: 3451711 (1969-06-01), Carpenter
patent: 3472401 (1969-10-01), Scaperotto
patent: 3803704 (1974-04-01), Seidel
patent: 3964616 (1976-06-01), Piotrowski
patent: 4050146 (1977-09-01), Geiger
patent: 4072236 (1978-02-01), Nomura et al.
patent: 4397605 (1983-08-01), Cowgill et al.
Cherry Johnny D.
Deutsche Industrieanlagen Gesellschaft mit beschraenkter Haftung
Striker Michael J.
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