Magnetic tape cassette with door opening mechanism
US4646189A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Dec 7, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08735
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape cassette includes a casing with a substantially straight side along which a peripheral wall has an opening for access to magnetic tape contained in the casing between its top and bottom walls which have edge portions projecting beyond the peripheral wall along the straight side, and a lid member having an elongated plate portion dimensioned to extend along the straight side of the casing and to fit closely between the projecting edge portions and ears projecting from opposite ends of the plate portion for disposition against respective end portions of the peripheral wall. Pivot pins are loosely received in respective, preferably triangular, apertures for connecting the ears of the lid member with the casing to permit pivoting of the lid member and its bodily displacement relative to the casing in directions at right angles to the pivoting axis. Thus, the lid member is movable, by a combination of the pivoting and bodily displacement thereof, between a closed position in which the plate portion is between the projecting edge portions at the straight side of the casing for closing the opening therein and an opened position in which the plate portion of the lid is disp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.