| 摘要 |
A rope hook with an off-the-hook limiting lever connected to a lever support of a body to be able to pivot in a front to rear direction and to shift laterally within a predetermined range. The lever is urged frontward (in a closed direction) and leftward (in a locked direction) by a complex spring. In the locked condition, the lever is prevented from pivoting rearward (in an opened direction) by a stopper edge of the arm engaging with a stopper surface of the body. In this connection, when it is intended to release the locked condition, it is necessary to push the lever rightward to disengage the stopper edge with the stopper surface and then push the lever rearward to pivot it in the opened position. In other words, the lever remains unopened unless two forces perpendicular to each other are applied sequentially to the lever.
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