Shutter pin groove for a magnetic disc cartridge

Details Shutter pin groove for a magnetic disc cartridge Shutter pin groove for a magnetic disc cartridge

1988-02-03

1988-11-22

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 99, 206444, G11B 23033

Patent

active

047870060

ABSTRACT:
A magnetic disc cartridge is composed of a pair of upper and lower case members so as to form a hard case to accommodate a magnetic disc therein. An aperture for access of a read-write head to the magnetic disc extends in a radial direction, which aperture is selectively covered by a shutter. The case has a groove on the peripheral edge thereof to receive a shutter actuation pin. The groove extends across the adjoining surfaces of the two case members. A groove portion defined by the lower case member is more enlarged than the remaining groove portion defined by the upper case member so that the shutter actuation pin does not catch in the step between the two groove portions.

REFERENCES:
patent: 4152739 (1979-05-01), DeMoss et al.
patent: 4497009 (1985-01-01), Onishi et al.
patent: 4517617 (1985-05-01), Tsuji et al.
patent: 4589105 (1986-05-01), Nemoto et al.
patent: 4710839 (1987-12-01), Iizuka et al.
IBM Technical Discl. Bull. vol. 27, No. 1A, Jun. 1984, pp. 40-41 "Shutter Mechanism for Flexible Disk Cartridge" by Carey et al.

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