Door lock device with automatic closing mechanism

Closure fasteners – Bolts – Swinging

Patent

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Details

29234116, E05C 306

Patent

active

055647618

ABSTRACT:
A door lock device with an automatic door closing mechanism comprises a lock body having a recess on its front surface side, a latch adapted to be engaged with a striker so as to be rotated from an open position to a full-latch position by way of a half-latch position, a ratchet adapted to be engaged with the latch so as to hold the engagement between the latch and the striker, an actuator adapted to be operated when the latch is rotated to the half-latch position, an output lever adapted to be rotated by power of the actuator, and a link lever adapted to be rotated by rotation of the output lever so as to move the latch from the half-latch position to the full-latch position. The latch, the ratchet and the link lever are stored in the recess of the lock body, and the output lever is provided on the rear surface side of the lock body.

REFERENCES:
patent: 3989287 (1976-11-01), Sheesley
patent: 4395064 (1983-07-01), Bellot
patent: 4762348 (1988-08-01), Matsumoto
patent: 4815775 (1989-03-01), Mertin
patent: 5020838 (1991-06-01), Fukumoto
patent: 5158330 (1992-10-01), Weyerstall
patent: 5180198 (1993-01-01), Nakamura
patent: 5222775 (1993-06-01), Kato
patent: 5232253 (1993-08-01), Tamiya
patent: 5273324 (1993-12-01), Kobayashi
patent: 5273325 (1993-12-01), Zimmerman

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