| 摘要 |
The bearing has guide rails connecting two magazine position for a reel-spool. A drive unit (7-16) moves the reel-spool between the positions. The unit acts on both spool ends at the same time, and has a moveable stop (7) for each end. The guide rails (2) are horizontal or slope upwards. The stop is formed by a roller and fastened to a carrier (8), which extends parallel to the guide rails. Each stop is moved between an active position, engaging with the reel-spool, and an inactive position. The drive unit has a position sensor (11). |
