| 摘要 |
<p>A lifting and turning apparatus (1) adapted for connection to an overhead support (B), the apparatus comprising a payload engaging means (12,14) which is operably coupled to and supported by a chain (10) which is driven by a pair of electrically actuable brake/drive units (5,6). A method of manipulating a payload is also described, the method comprising en-aging the payload (R) to a lifting and turning apparatus (1) of the type operably suspended from an overhead support (B) and supporting said payload via a chain driven by brake/drive units and a hoist (2) also including a chain drive for effecting a turning function. Together or separately, by actuating the brake/drive units and/or the hoist, the apparatus may lift, turn, lower or otherwise manipulate the payload. The apparatus includes a simplified, intuitive controller and control tech-nique for the manipulation of the payload.</p> |
