LOCK FOR REINFORCED DOORS, ETC Russian patent published in 2011 - IPC E05B59/00 

FIELD: construction.

SUBSTANCE: lock for reinforced doors, etc. comprises a box-like retaining body, which has suitable transverse holes for passage of at least one latch and at least one bolt. The box-like body holds multiple substantially plate elements and a rotary element for engagement with a handle. The plate elements are functionally joined with the cylinder. The cylinder is actuated with an according key. The rotary element is joined with the specified at least one latch by means of lever systems and is arranged with the possibility to move the latch. The lock also comprises a unit, which may be rotated relative to a hinged joint. The hinged joint is connected to the box-like body. The unit is located near the rotary element and has a beak, which protrudes and is functionally joined with a ledge of a rotary element. The specified unit comprises a lower claw, which is connected to a linearly moving lever. The lever is rigidly connected to a plate element, which is joined with at least one bolt. The linear upward movement of a lever causes disengagement of a plate element from a cylinder. The specified plate element may move linearly along the direction of latches moving-out.

EFFECT: development of a lock for reinforced doors, which has low cost, is simple and safe in use.

5 cl, 4 dwg