Magnetic recording/reproducing apparatus and rotary head drum device
US6751057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jun 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5921
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A guide plate is provided along the respective outer periphery of rotary and fixed drums on the upstream side relative to an inlet portion where a magnetic tape starts making contact with a magnetic head on the rotary drum, an airflow attendant on the rotation of the rotary drum is stripped by a wedge-shaped edge on the guide plate and is released to the outer periphery side by a guide surface of the guide plate, and the airflow flowing in the axial direction into the space between the tape and the rotary drum is restrained by an extended portion of the guide plate. In a rotary head drum device for a magnetic recording/reproducing apparatus, formation of an excess air film near an inlet portion of the tape is restrained, and stable recording and reproducing can be achieved without raising the tape tension, thereby enhancing the life of the tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.