| 摘要 |
A latching mechanism for a hoisting hook of the type having a C-shaped body portion with a stem at one end and a tip at an opposite end spaced from the stem to form a mouth, a longitudinally extending latch pivotally connected at one end to the stem for pivotal movement towards and away from the body portion about a horizontal pivot axis perpendicular to and spaced from the central axis of the stem, the tip having a recess means therein terminating in a stop means, the latch being provided with a projection means adjacent the opposite free end, whereby, when the latch is pivoted about its pivot axis away from the body portion, the projection means will pass into the recess means until it engages the stop means, constituting a closed position of the latch with respect to the hook, a spring means for urging the latch away from the body portion towards and into engagement with the tip, and rotatable locking means at the opposite end of the latch and selectively engagable with the upper end of the tip for retaining the latch in closed position with respect to the hook.
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