Lock mechanism

Details Lock mechanism Lock mechanism

1989-01-31

1990-04-24

Wolfe, Robert L.

Locks

Special application

For closures

70102, E05B 6312

Patent

active

049189530

ABSTRACT:
A lock bolt mechanism includes a housing on which a lock bolt is mounted for movement between locked and unlocked terminal positions. An inside actuator is rotatably mounted on the housing and a first drive connection links the inside actuator to the lock bolt whereby the lock bolt is caused to move in response to rotation of the inside actuator. An outside actuator is linked to the lock bolt through a second drive connection and is rotatable in order to move the lock bolt. A gear train forms part of the second drive connection and that gear train includes at least one partial gear wheel having a segment thereof with no gear teeth. A second gear wheel in the train is adapted to engage with the partial gear. Rotation of the outside actuator causes the partial gear to engage the second gear and thereby cause the second drive connection to operate the lock bolt. However, when the inside actuator is rotated the second gear wheel is free to rotate out of engagement with the partial gear. The outside actuator is preferably rotated through 360.degree. in moving the lock bolt between locked and unlocked positions. A slide plate may be used to bias the mechanism into the terminal positions.

REFERENCES:
patent: 1373353 (1921-03-01), Roden
patent: 2666661 (1954-01-01), Segal
patent: 4719774 (1988-01-01), Neuman
patent: 4724691 (1988-02-01), Newman

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