Cartridge for a recording medium having cover bearing elements t

Details Cartridge for a recording medium having cover bearing elements t Cartridge for a recording medium having cover bearing elements t

1998-02-18

2000-03-28

Davis, David

Dynamic magnetic information storage or retrieval

Record medium

In container

360132, 369291, G11B 2303, G11B 2302, G11B 726

Patent

active

060439645

ABSTRACT:
A cartridge device for a recording medium in which the effect of dust generated in a bearing portion between a cartridge main body portion and a lid member is suppressed for maintaining reliability even on prolonged use. A housing section 15 for a recording medium 1 formed in a cartridge main body portion 11 and a supporting void 17 for supporting a lid member 12 adapted for opening or closing a recording/reproducing aperture 16 are formed as voids separated from each other by a partitioning wall section 19. On the inner peripheral wall section in the supporting void 17 are formed an annular projection 22 and annular recesses 23 in continuation to one another. The lid member 12 is formed with supporting shafts 28 on the outer peripheral surface of which annular projections are formed in continuation to one another. The facing annular projections and annular recesses 23 are combined with one another, while other facing annular projections 23 and annular recesses 31 are combined with one another to form a radial step in the axial opening hole. The bearing void 17 and the supporting shafts 28 are supported inwardly of the step for preventing dust from flying to outside.

REFERENCES:
patent: 4933796 (1990-06-01), Tanaka
patent: 4945440 (1990-07-01), Iwahashi et al.

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