Door lock for handicapped persons

Details Door lock for handicapped persons Door lock for handicapped persons

1994-07-08

1997-02-25

Gall, Lloyd A.

Locks

Special application

For control and machine elements

70215, 70370, 2923363, 292358, E05B 1310

Patent

active

056050640

ABSTRACT:
A door lock which does not decrease the strength of an outer end portion of the outside rotary shaft includes an inside lever handle and an outside lever handle which are attached to a lock body assembled into the door, and a retracting operation of a latch bolt of a latch arranged on latch shaft perpendicular to a handle shaft is carried out by rotation of an inside or an outside rotary shaft of the lock body. A cut portion for drive opposite to a slot of an enlarged portion is formed at an inner circumferential wall of a tubular fitting portion of the outside lever handle, and that left and right cover portions in a projection form of an outer tube of the cylinder lock are respectively fitted over the cut portion for drive and the slot through left and right cut portions of the outside rotary shaft.

REFERENCES:
patent: 1892709 (1933-01-01), Shaw
patent: 2023941 (1935-12-01), Voight
patent: 2062487 (1936-12-01), Voight
patent: 3718015 (1973-02-01), Tornue et al.
patent: 4604879 (1986-08-01), Neary et al.
patent: 5077994 (1992-01-01), Trull et al.
patent: 5141269 (1992-08-01), Haq et al.
patent: 5317889 (1994-06-01), Solovieff et al.
patent: 5398531 (1995-03-01), Shen

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