| 摘要 |
A lifting device particularly suitable for snowmobiles includes a frame with ground engaging feet, a lever pivotally mounted on the frame and connected to a load engaging post which is raised upon movement of the lever from an upper to a lower position, and a latch for holding the lever in its lower position to hold the post in its raised position. A safety catch is movably mounted on the lever for movement relative to the lever between an operative position, in which it prevents release of the lever from its latched position, and an inoperative position in which the lever can be moved from the lower to the upper position after release of the latch. The safety catch is movable relative to the lever under gravity and arranged so that it automatically moves to an operative position when the lever is moved to its lowered position and the load is lifted, and when the lever is in the lower position, if the catch is moved from the operative position to the inoperative position, the catch remains in the latter position while the latch continues to hold the lever in the lower position.
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