Magnetic tape cassette with reel brake mechanism
US4678138A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Oct 31, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08742
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape cassette is provided with a reel brake and a tape-protecting lid. The tape-protecting lid has side plates extending parallel to the side walls of the cassette casing and pivoted on the side walls. The reel brake mechanism comprises a brake plate free to move between a braking position and a brake-release position and normally biased toward the braking position. One of the reel brake plate and the side wall of the casing is provided with means for maintaining interengagement between the reel brake plate and the side wall so as to ensure cooperation therebetween for automatic brake release in response to opening of the tape-protecting lid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.