Device for automatically winding up a feeder cable

摘要

PCT No. PCT/DE81/00001 Sec. 371 Date Jun. 18, 1982 Sec. 102(e) Date Jun. 18, 1982 PCT Filed Jan. 2, 1981 PCT Pub. No. WO82/01623 PCT Pub. Date May 13, 1982.In a device for automatically winding up an electrical cable for an electrically operating apparatus on a drum, the drum is journalled with its hollow hub in two sleeve bearings of different diameter formed with a pivot spindle fixed on a base plate. Between the bearings two sliding contact elements comprised of contact rings and contact springs are arranged, of which the contact rings are arranged non-rotatably on the pivot spindle, and the contact springs are arranged in a contact carrier insertable in a recess in the hub. The opening of the hollow drum hub (3.1) facing the base plate (1) is provided with a collar (3.11) and locking pawls (1.2) are provided on the base plate (1) that engage behind the collar (3.11) of the hub (3.1) so that the drum (3) is secured against axial drawing off of the pivot spindle (2). The contact carrier (12) is insertable in a radial direction in the recess (3.12) of the hub (3.1) and is held therein through a locking connection. The contact springs (13, 21) are so arranged or formed, that the contact pressures are effective only in the contact elements and are not transferred to the sleeve bearings (4, 5). To that end, the contact springs (21) can be bent in a U-form with legs (21.1, 21.2) contacting with the contact rings (20) on their diametrically oppositely lying outer surfaces or can be formed comb-like with prongs (13.1) contacting the contact rings (10) on both surfaces. Centrifugal brake weights (8) are provided on a drum flange.