KEY LOCK Russian patent published in 2009 - IPC F16B2/14 E04G17/07 E05B63/00 

FIELD: mechanics.

SUBSTANCE: key lock includes at least one pair of movable L-shaped clamping jaws and wedge-lock element interacting with the said jaws. The clamping jaws are fixed along one axis. In order to retain items, there are projections on one end of the jaw directed to each other. Each jaw has two holes. In addition, one of the holes is on the opposite side of clamping jaw regarding the above mentioned projection, while the other hole is in the middle of the jaw. The axis, where clamping jaws are fixed, rests upon the wedge plate inside the limiting bracket. The wedge plate is based on a guiding pipe. The first hole in the jaw is intended for jaw rotation around axis, while the other one is for its possible rotation around axes passing through the guiding pipe.

EFFECT: high reliability of fastening as compared to well-known level of technical development, simplification of design and reduced loads in key joints and requirements for manufacturing accuracy.

3 dwg