| 摘要 |
Lock for safety belts, comprising a lock housing enclosing a lock mechanism having a release member for manual operation, and a member of lock tongues which can be inserted into the lock housing for co-operation with the lock mechanism. The lock mechanism comprises a number of lock plates one for each lock tongue, which are mounted in the lock housing for rotation about a common axis and each form an abutment for the associated lock tongue and a hook for retaining locking engagement with the lock tongue and are spring-biased to be engaged with the lock tongue against the spring bias when the lock tongue is inserted into the lock housing to be engaged with the abutment, an arresting element which can be actuated manually to be engaged with each lock plate to arrest temporarily the lock plate in the engaged position, and a latch member which is spring-biased to engage the lock plates when all lock plates are arrested in the engaged position, to retain permanently the lock plates in said position. |
