Recording tape cassette having an approved reel lock member

Details Recording tape cassette having an approved reel lock member Recording tape cassette having an approved reel lock member

2005-10-11

2005-10-11

Castro, Angel (Department: 2653)

Dynamic magnetic information storage or retrieval

Record medium

In container

Reexamination Certificate

active

06954336

ABSTRACT:
A recording tape cassette which accommodates a reel on which a recording tape is wound. A lock member for locking the reel is rotatably attached at an inner face of a case of the recording tape cassette. The lock member is urged to a reel side thereof, and engages with a gear which is formed at a peripheral edge of a flange of the reel. A guide surface is formed at the lock member such that, at a time when the reel is inserted into the case, the lock member is pushed by the reel and consequently is withdrawn in a direction of releasing locking of the gear. With this structure, an operation of insertion of the reel can be carried out easily, and work efficiency can be improved.

REFERENCES:
patent: 4214719 (1980-07-01), Kato
patent: 4225100 (1980-09-01), Sugawara
patent: 4389690 (1983-06-01), Oishi et al.
patent: 4472753 (1984-09-01), Wulfing
patent: 4768122 (1988-08-01), Kawada
patent: 5294073 (1994-03-01), Oogi
patent: 5529256 (1996-06-01), Takahashi et al.
patent: 11-39828 (1999-02-01), None
patent: 11-176131 (1999-07-01), None

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