Forced entry resistant check rail lock

E - Fixed Constructions – 05 – C

Patent

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Details

E05C 19/00 (2006.01) E05B 13/00 (2006.01) E05C 3/04 (2006.01)

Patent

CA 2086808

A check rail lock with a handle pivot shaft secured for pivotal movement with respect to the housing and a cam which pivots with the shaft between an open position with the cam enclosed in the housing and a locking position with the cam extending from the housing for grasping a keeper. An axially reciprocable locking member is associated with the pivot shaft for pivoting therewith, and has a manually engageable button end projecting above the housing and a locking end within the housing. The locking end has circumferentially spaced locking surfaces, and a spring biases the member locking end into engagement with the housing. First and second locking notches in the housing receive the member locking end when the cam and handle are in the open and locking positions, respectively, and the locking notches each have a surface engaging one of the locking end locking surfaces to prevent pivoting of the locking member and pivot shaft when the member locking end is received therein.

Cette invention concerne un loqueteau de traverse de châssis mobile comportant un axe de poignée pivotant à l'intérieur d'un logement et une came solidaire de l'axe et tournant avec celui-ci entre une position déverrouillée où elle est à l'intérieur du logement et une position de verrouillage où elle sort du logement pour accrocher un mentonnet. Un élément de verrouillage à mouvement alternatif axial est également solidaire de l'axe et comporte un bouton manoeuvrable à la main faisant saillie au-dessus du logement et dont le bout de blocage se trouve à l'intérieur de celui-ci. Ce bout comporte des taquets de verrouillage ménagés sur son pourtour, un ressort appuyant l'élément de verrouillage contre le logement dont la paroi intérieure comporte une première et une seconde encoches dans lesquelles s'engage ledit élément de verrouillage selon que la came et la poignée sont en position ouverte ou fermée. Ces encoches présentent chacune une surface complémentaire aux taquets du bout de blocage pour empêcher le pivotement de l'élément de verrouillage et de l'axe de la poignée lorsqu'un taquet du bout de blocage s'y engage.

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