Lock, particularly mortise lock

Details Lock, particularly mortise lock Lock, particularly mortise lock

1992-04-16

1994-04-12

Cuomo, Peter M.

Locks

Special application

For closures

292 34, 70110, E05B 5904

Patent

active

053015258

ABSTRACT:
A lock, particularly a mortise lock, with bolt (9) and preferably catch (43) and a step-up lever (27) which acts on the bolt (9) and is equipped with a closure engagement opening (30) and is pivoted below the axis of rotation of the closure bit, for the closing of the bolt (9) in forward and backward direction while obtaining a lengthening of the closing stroke; in order to optimize the design, it is proposed that the path of movement of the closing engagement opening (30) extend approximately over a quarter-circle (V) of the cylindrical head (7) of a profiled-cylinder insertion opening (4).

REFERENCES:
patent: 971314 (1910-09-01), Schacht
patent: 1706486 (1929-03-01), Gasey
patent: 1855608 (1932-04-01), Lyons et al.
patent: 2086982 (1937-07-01), McCarter
patent: 3242706 (1966-03-01), Check
patent: 3464242 (1969-09-01), Torii
patent: 3672714 (1972-06-01), Schultz
patent: 3783658 (1974-01-01), Wada
patent: 3999411 (1976-12-01), Kambic
patent: 4683733 (1987-08-01), Marin
patent: 4870841 (1989-10-01), Cudd

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