Rotary connector
US5229544A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R35/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary connector is provided which includes a rotatable case having an inner cylindrical shaft, a fixed case having an engaging portion engaged with an end portion of the inner cylindrical shaft and coupled with the rotatable case with a clearance therebetween, and a spirally wound flat cable housed in the fixed and rotatable cases, the flat cable being allowed to loosen and tighten to thereby permit a predetermined number of rotations of the rotatable case relative to the fixed case. A projection protruding radially inward is provided at the engaging portion, such that a radially extending clearance is defined between the projection and the end portion of the inner cylindrical shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.