| 摘要 |
<p>The lifting mechanism is for a load platform removable from a lorry etc., having four or more jacks to whose extending telescopic portions the platform is coupled. The coupling devices are arranged so as to allow rotation, horizontal adjustment and locking in position, typically having a first plate (5) fixed to the telescopic portion (2) of the jack (1). This can rotate in relation or be locked to a second plate (7) fixed to a slide (11) extensible horizontally in relation to the platform (13), but which is prevented from turning in relation to the latter. The slide can be a rectangular-section tube, sliding in a mating tube (12) forming part of the platform frame.</p> |
