Lock device with trigger bolt

Details Lock device with trigger bolt Lock device with trigger bolt

1987-04-10

1989-06-20

Gall, Lloyd A.

Locks

Special application

For closures

70279, 29216913, 292254, 292335, E05B 6314

Patent

active

048400505

ABSTRACT:
The lock device comprises a locking portion and a fixing portion. The locking portion comprises a rotation lever mounted on a door side and turned by rotating a thumbturn or a key, a dead bolt engaging with the rotation lever and performing lock and release of the lock device by turning the rotation lever, a trigger bolt for locking the dead bolt, a rotating plate operating in a direction of draw in the dead bolt to the door side, and a latch bolt drawn in to the door side by the action of the rotating plate. The fixing portion comprises a strike mounted on a frame side of the door, a pressing lever for locking the dead bolt and pressing the trigger bolt onto the strike, means for causing the pressing lever to operate, and means for releasing press operation of the pressing lever and causing the trigger bolt to project to the door frame side.

REFERENCES:
patent: 1409245 (1922-03-01), Segal
patent: 3672714 (1972-06-01), Schultz
patent: 3769822 (1973-11-01), Yulkowski
patent: 3917329 (1975-11-01), Fujiki et al.
patent: 4389061 (1983-06-01), Foshee
patent: 4529234 (1985-07-01), Senften
patent: 4583382 (1986-04-01), Hull
patent: 4679834 (1987-07-01), Gotanda

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