SWITCH WITH INDICATOR Russian patent published in 2019 - IPC E05B19/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to production of keys. There is a mechanism to turn the key head rod through 180 degrees with fixation in two extreme positions: open or closed position of the lock. Fixation is ensured by elastic element, for example, spring, with ball, which provides better sliding of rod with head and pin, which is installed on rod of head and moves along curvilinear slot, allowing to turn head for half-turn, then rests. Key is installed in operating mode of the lock opening or closing. To indicate the turn position of the key head relative to the rod with barbs, there is a viewing hole through which two positions "open" and "closed", for example red and green color indication are visible.

EFFECT: creation of an improved key ensuring high consumer properties due to ease of use, visualization and additional protection of the door locking system.

1 cl, 4 dwg