DEVICE FOR HEAVY DOORS LOCKING Russian patent published in 2010 - IPC E05B65/32 E05C3/22 

FIELD: construction.

SUBSTANCE: device for door locking includes at least one locking mechanism, and also two rotary handles intended for its opening and arranged on opposite sides of door. Locking mechanism consists of base fixed on door, where swinging lever, pusher with spring and locking element are located. Spring-loaded pusher is arranged with the possibility of reciprocal motion in base guides. Force applied to handles is transmitted via pusher to swinging lever. Pusher by means of connecting rod is hingedly connected to locking element arranged in the form of bent swinging C-shaped lever, one end of which is fixed on base, and roller is installed on the other one to contact with locking mechanism response part surface as door closes.

EFFECT: increased reliability and serviceability in wire range of production, assembly and operational deviations.

10 cl, 7 dwg