CROSS-BAR Russian patent published in 2007 - IPC E05B15/10 

FIELD: ironmongery, particularly locks and locking systems adapted to prevent intrusion.

SUBSTANCE: cross-bar comprises fixed and movable parts. Fixed part is defined by body with guiding means. Movable part is made as head with tail connected with each other and installed so that the movable part may reciprocate along fixed part for distance equal to movable part stroke by means of rolling friction or sliding friction members and bearing members for fixation thereof. Rolling friction or sliding friction members are arranged between the body and bearing members. Head and tail are defined by spaced apart sheets installed one opposite another and connected with each other so that cavity is created in-between. The body is located in the cavity. Retaining means, which retains movable part with respect to fixed part thereof, is defined by bush, rod with end part, handle, limiter and annular cavity with base. Rod is arranged in the bush and may reciprocate inside it. Handle is located at end rod part. Handle and annular cavity are arranged on the rod outside the bush. One sheet has three orifices formed along direction of movable part movement with respect to fixed part and are communicated with each other. Distance between centers of orifices having diameters exceeding height of orifice located between above orifices is equal to the stroke. The rod is installed so that it may be inserted in orifices having greater diameters when movable part is installed in extreme positions relatively fixed part. Annular cavity may be arranged in orifices. When the annular cavity is installed in orifice located between greater ones the annular cavity may receive sheet part. Limiter is fastened to rod and may cooperate with bush. Handle is formed at end rod part. Handle and annular cavity are arranged on rod outside the bush.

EFFECT: increased efficiency.

9 dwg