| 摘要 |
PCT No. PCT/FR88/00616 Sec. 371 Date Aug. 22, 1989 Sec. 102(e) Date Aug. 22, 1989 PCT Filed Dec. 15, 1988 PCT Pub. No. WO89/06300 PCT Pub. Date Jul. 13, 1989.The present invention concerns a system for driving movable undercarriages along a rail, and a procedure for its implementation. This system provides for the movement from a first area, in which the undercarriages are positioned in close proximity, to a second area, in which they are spread apart, and vice versa. The invention is characterized by the fact that it incorporates: at least two undercarriages (6, 6') connected by a flexible or pliable connection element (26), and stop-blocks (15) for driving the undercarriages by means of a device which is retractable in a storage configuration, the stop-blocks being arranged on a drive chain (13) at predetermined intervals. The invention also concerns an application of the invention to equipment for the storage and arrangement of seats, as well as to its implementation procedure. |
