Rotary head cylinder having a fixed cylinder projection generating a lifting force at a lower edge of a tape on the cylinder to increase an upper edge restricting force
US5526207A · kind A · utility
3Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/62
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A rotary head cylinder of a rotary head assembly includes a first projection for reducing jitter. The first projection is smoothly formed in the vicinity of a point where a tape is separated from a fixed cylinder and is extended in a lengthwise direction of the tape. A second projection is provided for increasing a restricting force on an upper edge of the tape in a direction toward a surface of the fixed cylinder. The second projection is smoothly formed in the vicinity of a lower edge of the tape at the same point on the fixed cylinder and is extended in the lengthwise direction of the tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.