| 摘要 |
<p>A link lever mechanism e.g. of the scissor type has a compressed air supply for lifting purposes. The mechanism (1) has a lift platform (2) which includes hinged (5) legs (3, 4). The legs are arranged in a dual formation. The platform has a guide unit (8) with metal strip and a slot (10) to accommodate a hinge pin (9). The operating drive mechanism has tubular segments (20-23) with so-called crab feet and arms.</p> |
