| 摘要 |
A suspension device has two parallel profiled rails (2,3) with running faces for the wheels of a trolley (15) from which an object is hung. The rails are fixed relative to each other by transverse struts (5). At least one rail is a one-piece item. Apart from the running faces for the trolley wheels there are one or more further faces for the wheels of one or more cable wagons carrying power supply cables for the object. Each rail has a limb carried by the transverse struts on one side of which is a running face for the main wagon and on the other side is a running face for the second trolley. |
