| 摘要 |
A combination lock mechanism comprising a housing (20), a locking element (40) fitted with a locking latch (48) and extending into the housing (20), at least two coaxially disposed rotatable locking assemblies (58, 60, 62), each comprising a cogged wheel (68), a locking disc (70) formed with a peripheral recess (84) and a reset element (72) fixable to the cogged wheel (68), a forked locking member (90) pivotally secured within the housing (20) and fitted with first engaging fingers (94), each engaging finger (94) adapted for engagement with the peripheral recess (84) of a corresponding locking disc (70), second engaging fingers (96, 98), each adapted for engagement with a corresponding reset element (72), and a locking lug (140) for locking engagement with the locking latch (48) of the locking element (40). The lock further comprises a manipulating frame (100) displaceable within the housing (20), the arrangement being such that upon predetermined consecutive displacements of the manipulating frame (100) the forked locking member (90) can be shifted to its open position.
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