Reel support positioning device for a cassette tape recording an

Details Reel support positioning device for a cassette tape recording an Reel support positioning device for a cassette tape recording an

1989-06-12

1991-01-08

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

360 963, 360 95, 242199, G11B 1500

Patent

active

049841092

ABSTRACT:
A reel position device for shifting reel supports, on which reels are mounted, corresponding to diameters of the reels of plural different sizes and/or distances between the reels and for positioning and holding the reel supports at a predetermined position, and a magnetic recording apparatus usign such reel support shifting device, wherein one end of each of operation members for shifting the reel supports is rotatably engaged by a corresponding pivot shaft arranged at a predetermined radial position of each of rotary members driven by a motor. The other end of said operation member is engaged by a guide in a reel support shifting structure and by a guide slot formed in a fixed part of the device. A positioning and holding mechanism such as a V-shaped notch is provided in each guide slot. Positioning and holding forces are obtained from elastic members such as springs connected to the rotary members. By rotating the rotary members, one end of each operation member is rotated and the other end thereof shifts the corresponding reel support. The operation members abut against regulating members, whereby the ends of the operation member are urged against guide surfaces.

REFERENCES:
patent: 4664337 (1987-05-01), Shiratori
patent: 4787572 (1988-11-01), Rademacher
patent: 4873593 (1989-10-01), Baranski
SMPTE 130th Technical Conference, Oct. 15-18, 1988, Reprint No. 130-19, "Mechanical Considerations for Composite Digital" VCR by Kaku.
IREJ Technical Report vol. 12, No. 56, pp. 31--36, VR 188-60 Dec. 1988.

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