| 摘要 |
The present invention provides a suspension device for traveling on an overhead rail, the device including pairs of rollers (52; 65, 67; and 80, 82) which are arranged in pairs to define a downwardly open v so that the outer surfaces of the rollers can engage opposite sides of a guide rail (53; 63;), which is engaged by the outer surface of the rollers when the device is suspended therefrom. There are preferably two pairs of said rollers, and each roller preferably is in the form of a roller bearing. In a specific arrangement, the device comprises a pair of end frames connected by upper and lower cross bars, all of the components being made of plastics material, and the roller bearing pairs being supported from the upper cross bar. The end brackets are of question mark shape to enable the device to be placed on and moved from the guide rail by moving the device laterally of said guide rail. |
