Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-12-04
1993-11-30
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
242198, 242199, G11B 23087, G11B 1522
Patent
active
052671143
ABSTRACT:
In a tape cassette including a brake member and a wire-shaped brake spring supported at its opposite ends by the brake member, the brake member is biased by the brake spring to come into pressure contact with hubs and thereby lock the hubs. One end of the brake spring is completely fixed to the brake member, and the other end of the brake spring is supported by the brake member with a degree of freedom parallel to the axial direction of the brake spring. The brake member has a guide recess opened at one end thereof and is adapted to be slidably moved to effect hub locking and unlocking operations while being guided by a guide pin formed in a cassette case, the guide pin being inserted through the guide recess. The opened end of the guide recess diverges to form a tapering portion so that the guide pin may be smoothly introduced into the guide recess upon sliding movement of the brake member.
REFERENCES:
patent: 4029268 (1977-06-01), Schoettle et al.
patent: 4225100 (1980-09-01), Sugawara
patent: 4671469 (1987-06-01), Ikebe et al.
patent: 4676453 (1987-06-01), Komiyama et al.
patent: 4757957 (1988-07-01), Nakatamari et al.
patent: 4841403 (1989-06-01), Tsuruta et al.
patent: 4884159 (1989-11-01), Satoh
Patent Abstracts of Japan, vol. 9, No. 190 (P-378), Aug. 7, 1985, 60-57586 (A) (Apr. 3, 1985).
Ohta Tsuyoshi
Oogi Takashi
Eslinger Lewis H.
Maioli Jay H.
Renner Craig A.
Sony Corporation
Wolff John H.
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