KEY OR KEY BLANK FOR CYLINDER LOCK Russian patent published in 2017 - IPC E05B35/00 

FIELD: manufacturing technology.

SUBSTANCE: present invention relates to keys and key blanks for cylinder locks. Key or key blank for cylinder lock comprises elongated and flat body (3) with two opposite main faces (31, 32) and first contact element (301) and second contact element (302), intended for interaction with elements of cylinder lock and configured to move in holes (306, 307), formed in body (3), and extending to said main faces (31, 32), between a position in which each element projects from respective main face, and a position in which it is retracted in corresponding hole. In body (3) there are spring means (303), which push first and second contact elements (301, 302) into a position in which they protrude from main faces (31, 32) by means of third control element (304), configured for movement in body (3), in longitudinal direction of body and is pushed by spring means (303) to a position in which it is established between first and second contact elements (301, 302) so as hold them in place when they protrude. In a preferable version, two contact elements (301, 302) and third control element (304) are balls. Body (3) forms catching surface for first and second contact elements (301, 302) in direction towards position in which they protrude.

EFFECT: technical result consists in simplicity of manufacturing, shorter time spent on manufacturing, as well as high degree of safety with respect to making duplicate key.

9 cl, 10 dwg