Tensioning means for belt driven tape cassette
US4102516A · kind A · utility
11Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Apr 14, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08778
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a tape cartridge of the type wherein a motor-driven endless belt bears against the supply and take-up rolls of tape to move the tape, and wherein the belt extends about a pair of guide rollers that hold it in tension, the improvement of a drag washer for applying drag to the guide rollers to assure tension in the belt. Each drag washer is bowed, with a central portion having a hole receiving the roller shaft and bearing against an end of the roller, and with a pair of arms bearing against the cartridge frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.