Lid assembly for a tape cassette which protects front and rear s

Details Lid assembly for a tape cassette which protects front and rear s Lid assembly for a tape cassette which protects front and rear s

1994-02-23

1995-06-06

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

2423471, G11B 2302, G11B 23087

Patent

active

054227739

ABSTRACT:
In order to prevent drop-out in recording and reproducing, a cassette back lid is constituted by a first swing plate having a first engagement member engageable with a first cam surface, and a second swing plate having a second engagement member engageable with a second cam surface. The first swing plate is urged by torsion springs, in the lid opening direction. Therefore, a rotational operation of a cassette front lid in the lid opening direction causes the first swing plate to swing in the lid opening direction, and the second swing plate to swing in the lid opening direction, independently of the swing motion of the first swing plate, that is, the first and second swing plates swing relative to each other and also relative to the front lid in response to the swinging movements of the front lid between its opened and closed positions. This arrangement makes it possible to add the cassette back lid behind the front lid without changing the conventional open angle, and to improve the ability of protecting the tape.

REFERENCES:
patent: 4418373 (1983-11-01), Fujimori et al.
patent: 4680660 (1987-07-01), Ueda
patent: 4897751 (1990-01-01), Goto
patent: 5065955 (1991-11-01), Fujii
patent: 5225954 (1993-07-01), Kondo
patent: 5316234 (1994-05-01), Housho et al.
patent: 5322237 (1994-06-01), Ota et al.

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