Lock for preventing movement of a rod

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 63/00 (2006.01) B66F 1/08 (2006.01) F15B 15/26 (2006.01) F16C 3/02 (2006.01) F16C 11/10 (2006.01) F16H 21/04 (2006.01) G05G 5/00 (2006.01)

Patent

CA 2249757

A rod lock 76 is disclosed for preventing axial movement of a rod 72 in a first direction, while permitting axial movement of the rod 72 in the opposite direction. The rod lock 76 includes a pair of opposed, generally wedge-shaped jaws 210 disposed on either side of the rod 72. The jaws 210 are movable by a spring loadtoward a pair of fixed wedges 216. The jaws 210 are in sliding contact with the fixed wedges 216 so that when the spring load forces the jaws 210 toward the fixed wedges 216, the jaws 210 are forced inward into a gripping engagement with the rod 72. In this position, the gripping engagement of the jaws 210 prevents axial movement of the rod 72 toward the fixed wedges while axial movement of the rod in the opposite direction is possible by overcoming the spring load.

Mécanisme de blocage 76 de tige empêchant le mouvement axial d'une tige 72 dans une première direction tout en permettant le mouvement axial de la tige 72 dans la direction opposée. Le mécanisme de blocage 76 comprend une paire de mâchoires opposées 210 en forme générale de coin placées de chaque côté de la tige 72. Les mâchoires 210 peuvent être déplacées par la pression d'un ressort vers une paire de coins fixes 216. Les mâchoires 210 sont en contact glissant avec les coins fixes 216 de façon que, quand la pression du ressort pousse les mâchoires 210 contre les coins fixes 216, les mâchoires 210 sont poussées vers l'intérieur pour se mettre en prise par serrage sur la tige 72. Dans cette position, le serrage qu'exercent les mâchoires 210 empêche le mouvement axial de la tige 72 vers les coins fixes, alors que le mouvement axial de la tige dans la direction opposée est possible si l'on neutralise la pression du ressort.

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