Latch blocking device for e.g. house door lock, has door handle and knob provided with oblong shutter, and high retaining spring for latch brought into shutter for utilizing soft return spring for socket

摘要

The device has a pressing socket (2) and a pressing square needed for an operation. A door handle is provided with an oblong shutter, and a knob is provided with the shutter whose oblong shape technically undergoes a change. A latch (1) supports downstream to a latch head below an extension (1b) that is formed at an end to a side of the pressing socket. Guide lines of a pin (1a) are provided horizontal to a center of the socket. A high retaining spring for the latch is brought into the shutter for utilizing a soft return spring for the pressing socket.