| 摘要 |
A portable lift for industrial uses in which an upright post is supported on a base and has a carriage slidably supported thereon. Load carrying members extend forwardly of the carriage and a pulley is mounted on the carriage and in a pulley housing mounted on top of the post. A winch is supported rearwardly of the post, and a cable passes from the winch through the pulley housing downwardly to and around the carriage pulley then upwardly through a conduit in the pulley housing and is tied off at the winch support. A brace extends downwardly from the winch support to the base thereby to provide counter acting balances for the load. The combination disclosed, permits loads twice the rated winch capacity to be lifted without rocking, tipping or other unwanted oscillatory movements in the device. Outriggers are pivotally mounted on the base and are movable between the storage position parallel to and adjacent to the base with the outrigger feet raised off the ground and a use position in which the outriggers extend laterally of the base with the feet in contact with the ground. Locking mechanism keep the outriggers in one of the use or storage positions.
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