Recording medium device with memory terminals and shutter sized and shaped in relation thereto
US5791578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium device has a cartridge main body housing a recording medium configured for recording information signals. The recording medium device includes the cartridge main body housing the magnetic tape, contact terminals arranged facing the outside of the cartridge main body for functioning as electrical contacts for a drive unit, and a shutter member arranged on the cartridge main body for opening and closing the contact terminals. The contact terminals face outwardly of the cartridge main body via an opening formed in the outer peripheral wall of the cartridge main body. When not loaded on the drive unit, the shutter member is held at a position closing the opening formed in the cartridge main body. When loaded on the drive unit, the shutter member is moved by a shutter opening mechanism mounted in the drive unit to a position uncovering the opening for exposing the contact terminals to the outside of the cartridge main body. The shutter member is perpetually biased by a biasing unit in a direction of closing the opening. Since the contact terminals are covered by the shutter member, they are safeguarded against deposition of dust and dirt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.