Self-winding cable reel

• US 6,179,104 B1
• Filed: 06/03/1999
• Issued: 01/30/2001
• Est. Priority Date: 06/16/1998
• Status: Expired due to Term

• Current Assignee: Atlanta Kabel Steinmuller GmbH + Company KG
• Original Assignee: Atlanta Kabel Steinmuller GmbH + Company KG
• Inventors: Kleindopp, Günther, Büttner, Gerhard, Steinmüller, Jörg
• Primary Examiner(s): Basinger, Sherman
• Assistant Examiner(s): JULES, FRANTZ F
• Application Number:
  US09/325,097
• Time in Patent Office: 607 Days
• Field of Search: 191/12.R, 191/12.2 R, 191/12.4, 242/80, 242/118.41, 242/107.1
• US Class Current: 191/12.20R
• CPC Class Codes: B65H 75/4431 Manual stop or release button
• CPC Class Codes: H02G 11/02 using take-up reel or drum

Abstract

A self-winding cable reel having a base plate which receives the cable drum on a bearing spindle. The technical problem is a stable and concentrated construction of all the functional parts on a base plate and a contact arrangement comprising a small number of individual parts. A circumferential stub (39) of the cable drum (3) projects into a U-shaped channel of the base plate (1), said channel being formed by a second circumferential wall (19), a second annular wall (20) and a third circumferential wall (21), a chamber (6) of the base plate (1) adjoins a window (26) of the third circumferential wall (21) and receives a winding spring (8) fastened to the circumferential stub (39), the third circumferential wall (21) has at least one further window (28), through which a braking roller (11) reaches and bears against the inner surface of the circumferential stub (39), a central annular wall (22) of the base plate (1) receives contact rings (12, 13) and carries the bearing-spindle (2), and an annular wall (40) of the cable drum (3) carries sliding contacts (14, 15).

Claims

1. A self-winding cable reel comprising a base plate which receives a cable drum on a bearing spindle, wherein a circumferential stub (3) of the cable drum (3) projects into a U-shaped channel of the base plate (1), said channel being formed by a second circumferential wall (19), a second annular wall and a third circumferential wall, wherein a chamber of the base plate adjoins a window of the third circumferential wall and receives a winding spring (8) fastened to the circumferential stub, wherein the third circumferential wall has at least one further window, through-which a braking roller reaches and bears against an inner surface of the circumferential stub, wherein a central annular wall of the base plate receives contact rings and carries the bearing spindle and wherein an annular wall of the cable drum carries sliding contacts.

2. A self-winding cable reel as claimed in claim 1, wherein the winding spring is fastened to a central spindle of the chamber.

3. A self-winding cable reel as claimed in claim 1, wherein the two sliding contacts are of the same design and wherein contact heads of the sliding contacts are approximately diametrically opposite each other.

4. A self-winding cable reel as claimed in claim 3, wherein the contact rings are exchangeable and have plug pins (33).

5. A self-winding cable reel as claimed in claim 1, wherein a radial guide for a braking lever is provided on a side of the base plate opposite the bearing spindle and wherein the braking lever has slots (56) oriented symmetrically with respect to the guide for the purpose of guiding a spindle of a braking roller.

6. A self-winding cable reel as claimed in claim 5, wherein the braking lever can be pushed into the guide and the base plate in the axial direction and locked by guide fins and catch lugs.

7. A self-winding cable reel as claimed in claim 5, wherein a compression spring active in the radial direction is supported between the braking lever and a radially oriented stud of the base plate.

8. A self-winding cable reel as claimed in claim 1, wherein centrifugal weights guided in radial guides of a flange of the cable drum engage, with slots, over catch elements of the guides.

9. A self-winding cable reel as claimed in claim 1, wherein clamping strain relief elements are provided inside the core of the cable drum.