Deadbolt lock with locking block uses steel double-S leaf spring as elastic buffer triggered by block homing into deadbolt fork with spring pins joined along line central to block movement.

摘要

The elasticity of the buffer action (P) stems from a steel leaf spring (16) anchored on the pawl (13) and deadbolt (10) journals (9,12) and shaped as a double-S to give a bulged part (18) in the block (6) entry sense. The spring is triggered by the domed head (8) of the block (6). The line (x-x) between the anchor points (9,12) runs central to the path of block movement (y-y). When trapped, the block (6) thrusts between spring bulge and deadbolt fork jaw (10).