Cartridge shutter actuating device in recording and/or reproduci

Details Cartridge shutter actuating device in recording and/or reproduci Cartridge shutter actuating device in recording and/or reproduci

1988-10-31

1990-02-06

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

369 772, G11B 5012

Patent

active

048992380

ABSTRACT:
A device for opening a shutter of a disc cartridge along with insertion of the disc cartridge into a holder of a recording and/or reproducing apparatus for performing recording and/or reproducing operation is disclosed. The device includes at least one arm member freely rotatable about a pivot provided at one end thereof and having at the other end a first engaging portion adapted to be in engagement with the shutter substantially during insertion of the disc cartridge. A guide means or a slot extending in an oblique direction between the cartridge inserting direction and a direction in which said shutter is slided to open is provided for guiding therealong a second engaging portion of the arm member during insertion of the disc cartridge, thereby rotating the arm member to open the shutter due to continued engagement thereof with the first engaging portion. The pivot of the arm member is supported by a sliding member and is moving while the second engaging portion is being guided along the first guide means. A spring is connected between the arm member and the holder or apparatus for biasing the arm member toward a direction opposite to the cartridge inserting direction.

REFERENCES:
patent: 4688123 (1987-08-01), Sokol
patent: 4811137 (1989-03-01), Muto

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