Methods and apparatus for maintaining a constant tension on an electrical cord of a robot
US5498940A · kind A · utility
34Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1993 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Dec 30, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A constant tension is maintained on cord of a robot by determining whether the cord is being extracted or retracted and the extent of such extraction or retraction, and increasing or decreasing a spring force applied to the cord by an amount suitable for maintaining a constant tension on the cord.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.