| 摘要 |
A lock has a lock casing and a spring-loaded trigger guided for reciprocating movement within the housing. A hook-like bolt is arranged within the housing to be movable between an unengaged position and an engagement position. In a first position, as support surface of the spring-loaded trigger retains the bolt in its unengaged position. In a second position the spring-loaded trigger releases the bolt for movement towards its engagement position.
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