LOCKING DEVICE Russian patent published in 2011 - IPC E05B39/02 G09F3/03 F16G11/04 

FIELD: construction.

SUBSTANCE: locking device comprises rope, one end (1) of which is fixed in body (2). The other end (3) is pulled through thru cavity (4) of body (2). Cavity (4) has input and output (6) holes. Other end of rope is fixed in cavity (4) at least by one spring-loaded fixing element (7). Fixing element (7) is installed inside body (2). Protective facility is installed in input hole of body (2). Protective facility includes at least three balls (8), which are arranged in sockets (9) of separator (10). Balls (8) may rotate and interact with surfaces of indents between strands of rope. Separator (10) is installed in input hole of cavity (4) and may rotate around rope as it is pulled through separator (10). Separator (10) has shape of ring, thickness of which is less or equal to diametre of balls (8). Central through hole (11) of separator (10) complies with diametre of rope. Sockets (9) of separator (10) are arranged as open at the side of its central through hole (11) and through for its whole thickness. Distance between two edges, which are located at the border of contact of side walls of each socket (9) with side walls of central through hole (11) of ring is less then diametre of ball (8). Diametre of inner circumference circumscribed between balls (8), when balls (8) are moved apart in radial direction until stop at surface of according surface (9), is less than external diametre of rope section.

EFFECT: improving locking device reliability.

9 cl, 5 dwg