| 摘要 |
A wall hoist assembly for lifting, adjusting, and supporting an object onto a mounting surface, such as a vertical wall. A pair of wall hoist assemblies attach to both ends of the wall mounted object to create complimentary support for each other. The wall hoist assembly includes a cable for engaging three pulleys and transmitting a tension force along its longitudinal breadth, with each pulley sharing the weight of the wall mounted object, and the cable transmitting a tension force along the whole wall hoist assembly. The cable engages the three pulleys in such a manner that less work is needed to lift, adjust, and support heavy objects onto the wall. A first pulley includes a locking member that allows the cable to be locked into a stationary position. A second pulley attaches to the wall, and a third pulley attaches to the object. The three pulleys work together. |
