| 摘要 |
The invention relates to a cable drum with at least two cable rollers for reeling up the pertaining cable sections. The inventive cable drum is further characterized in that (a) the two cable rollers (3a, 3b) are identical and independent of each other in terms of build-up and functions, and (b) every cable roller (3a, 3b) is associated with a flat spiral spring (15a, 15b) whose axis (21a, 21b) is off-set with respect to the axis (22a, 22b) of the pertaining cable roller (3a, 3b). The inventive cable drum further comprises (c) one brake mechanism for every cable roller (3a, 3b) for the reeling-up movement of the cable roller (3a, 3b), and (d) a locking device for every cable roller (3a, 3b) for locking the cable roller (3a, 3b), and is further characterized in that (e) the ends (9a, 9b) of the cable sections (6a, 6b) are electrically connected to one another via an intermediate cable (23). |
