| 摘要 |
Carriage for a portable load-carrying unit (10), which is adjustable between an inoperative position and an operative load-carrying position, comprising gripping means (27), at least one pair of links (14) which are pivotally connected with each other in a common joint (15) at one end thereof, and at least one load-carrying wheel (17) rotatably mounted at said joint. The carriage of this invention is characterized in that said links (14) at the other ends are operatively connected to said gripping means (27) and are guided to be pressed towards each other by a lifting force applied to said lifting means to bias the carriage towards said operative position to lower the load-carrying wheel at said common joint (15) in order to transfer gradually the load carried by the lifting means, to said carriage. |
