Improved door latch assembly with accelerated bolt motion,...

Details Improved door latch assembly with accelerated bolt motion,... Improved door latch assembly with accelerated bolt motion,...

E - Fixed Constructions

05

C

E05C 1/16 (2006.01) E05B 9/00 (2006.01) E05B 63/00 (2006.01) E05B 63/06 (2006.01) E05B 55/00 (2006.01)

Patent

CA 2399902

A door latch has an adjustable cam (25) to accommodate two backsets of the bore (24) through a door. The cam (25) is operably attached to a handle (14). Rotation of the handle (24) approximately 45~ fully retracts latch bolt (54) and deadbolt (56) through a slide actuator (100) that pulls a link (112) which pivots a cam lever (104) that retracts the bolt (54). The bolt (54) retracting motion is magnified with respect to the motion of actuator (100) via the link (112) and cam lever (104). The link (112) and cam lever (104) are mounted within cylinder section half (52) of housing (28) so as not to interfere with the deadbolt (56) and its slide (150) and deadbolt locking plate (170) that are mounted in a complementary cylinder half (51).

L'invention concerne un verrou de porte comportant une came ajustable (25) destinée à prendre en compte deux distances d'entrée de l'emplacement (24) à travers une porte. La came (25) est fixée de manière opératoire à une poignée (14). Une rotation de la poignée (24) de 45· approximativement permet de rétracter le pêne de verrou (54) et le pêne dormant (56) à travers un actionneur coulissant (100) qui tire un lien (112) pivotant un levier de came (104) qui rétracte le pêne (54). Le mouvement de rétraction du pêne (54) est amplifié par rapport au mouvement de l'actionneur (100) via le lien (112) et le levier de came (104). Le lien (112) et le levier de came (104) sont montés à l'intérieur d'une demi section de cylindre (52) du logement (28) de façon à ne pas interférer avec le pêne dormant (56) et sa coulisse (150) ainsi qu'avec la têtière de verrouillage (170) du pêne dormant (170) qui sont montés dans l'autre moitié de cylindre (51).

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