| 摘要 |
A double safety latch includes a housing with first and second lock means carried thereby. The second lock means is mounted in axial alignment behind the first lock means in the housing with restraining means engaging the second lock means to restrain actuation thereof. Closure or blocking means are associated with the first lock means for blocking access to the second lock means and the restraining means. Actuating means is provided to engage and remove the blocking means from the first lock means for then accommodating access of the actuating means to the restraining means to disengage the restraining means from said second lock means to enable said actuating means to unlock the second lock means.
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