| 摘要 |
A hoist 1 comprising a base 5, an extendible support arm 12 mounted for longitudinal movement with respect to the base, and a hoist arm 18 mounted on the extendible support arm for pivotal movement about a horizontal axis 24 transverse to the direction of longitudinal movement. The hoist arm 18 has a horizontally extending arm 20 which extends transverse to the hoist arm and to which an item 2 to be lifted can be attached. In a preferred use of the hoist, the base is mounted inside an automobile and used for unloading and loading an short distance mobility vehicle for a disabled person from or into a car. Preferably, the extendable arm is moved by rack (15, Fig 3) and pinion 16 and the arm 19 via actuator 26 and links 30, 33. Alternatively, a motor (52, Fig 7) and first and second gears (50, 51) are used to move the arm 18. The hoist movements may be controlled by a plurality of sensors (Figs 8 and 9). |
