Automatic pretensioning mechanism for tension element drives
US8858374B2 · kind B2 · utility
5Cited by
10References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Sep 7, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H19/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mechanism for pretensioning a cable, or like tension element, of a tension-element drive selectively engages the motor drives of the cable for pretensioning. The mechanism uses a sleeve on which a portion of the cable is wound, with another portion of the cable wound in an opposed direction on a drive shaft on the motor. A clutch connects the sleeve to the motor output shaft. An initiator mechanism selectively stops rotation of the sleeve and the cable portion wound on the sleeve while allowing the motor torque to act on the other end of the cable wound on the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.