EVACUATION EXIT LOCK Russian patent published in 2012 - IPC E05B13/00 

FIELD: construction.

SUBSTANCE: lock (1) of an evacuation exit comprises a protective body (2) of a box type, equipped with side holes (7) for passage of at least one latch (8) and at least one bolt (9); multiple plate elements, which are functionally connected to a cylinder (10), driven with an appropriate key; and a rotary element (11) for engagement with a handle, which is connected with the specified at least one latch (8) by means of lever mechanisms, and which is designed to move it. Lever mechanisms arranged between the rotary element (11) and the latch (8) comprise a lever (12), which has an end (13) that may be connected with the specified latch (8) in order to move the latch (8), besides, the specified lever (12) is arranged at least with one lower section (14) for coupling with an appropriate stop (15), which is fixed with the rotary element (11). The lever (12) may be inclined as a result of action of a mechanism, which is driven by a user, relative to its end (13) from the first configuration, under which at least one its section (14) is matched with a stop (15), into the second lifted configuration, at which one section (14) is separated and spaced with one stop (15), not crossing with it in any point of its travel in process of rotation of the specified rotary element (11).

EFFECT: increased efficiency of a structure.

1 cl, 4 dwg