CYLINDER MECHANISM OF THE LOCK CORE Russian patent published in 2022 - IPC E05B27/00 

FIELD: locks.

SUBSTANCE: proposed invention of a lock core relates to door locks and can be used in mortise and rim models. The cylinder mechanism of the lock core comprises a body (1) of the core with a rotary cylinder (2) placed therein with a round hole, in the centre whereof a support stand (3) is installed, secured on the inner rotary cylinder (2), spring-loaded support pins (5) and code (6) cylindrical pins, a recoding ball (8), bearing balls (7) abutting against the support stand (3) and blocking the through hole between the support stand (3) and code pins (6). An annular groove is made on the inside of the body (1) of the core for accommodating part of the diameter of the recoding ball (8) and applying recoding between the mounting, main, and spare keys, extending the code pin (6) upward, with the recoding ball (8) installed thereon into the hole of the body (1) of the core, above the line of contact of the body (1) of the core and the rotary cylinder (2). A recess (9) is made on the rotary cylinder (2), configured for the recoding ball (8), falling into the recess (9) from the hole of the body (1) of the core during rotation of the rotary cylinder (2), to be moved thereto.

EFFECT: possibility of using complex recoding between multiple types of keys, reduction in the friction and wear of the code pins, and blocking of the through hole between the support stand and the code pins are provided when the installation area is limited.

1 cl, 3 dwg