Sistema de ligaçao de chave para um veículo

摘要

A plurality of tumblers (6) adapted to engage with tumbler engaging grooves (12) of an outer cylinder (1) and a pair of cylinder pins (8) are radially slidably supported on an inner cylinder (2) rotatably supported within the outer cylinder (1). When a key (K) is properly inserted to the end of a key hole (21), the tumblers (6) are disengaged from the tumbler engaging grooves (12) by code valleys (K1) of the key (K), and the pair of cylinder pins (8) are disengaged from the tumbler engaging grooves (12) by a tip end (K2) of the key (K), so that the inner cylinder (2) is allowed to rotate. When the key (K) is improperly inserted to the end of the key hole (21) to be turned, engagement of the cylinder pins (8) of a high rigidity with the tumbler engaging grooves (12) restricts the rotation of the inner cylinder (2) to prevent the tumblers (6) from being damaged. $$