Cartridge for a photosensitive recording medium

Abstract

A light shield plate 12 having outer openings 14 and 15 is fixed to the outside of a cartridge body 11 in which inner openings 18 and 19 for exposing a photosensitive recording medium 4 to the outside are formed. A shutter 13 for opening and closing the inner openings 18 and 19 is incorporated movably between the cartridge body 11 and the light shield plate 12. Closing-side ends 55e and 55f of the shutter 13 and shutter-closing-side edges 18a and 19a of the inner openings 18 and 19 and/or shutter-closing-side edges 14a and 15a of the outer openings 14 and 15 are inclined from each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing an outward shape of a cartridge as an embodiment of the present invention.

FIG. 2 is a perspective view of the cartridge as viewed from the opposite side.

FIG. 3 is an exploded perspective view showing the configuration of the cartridge.

FIGS. 4A, 4B and 4C are sectional views taken along line IV-IV in FIG. 1 and as viewed in the direction indicated by arrows in which FIG. 4A is an overall view, FIG. 4B is an enlarged view of a front peripheral portion, and FIG. 4C is an enlarged view of a rear peripheral portion.

FIG. 5 is an enlarged exploded perspective view of an important part of the cartridge excluding a shutter and a light shield plate.

FIG. 6 is a sectional view taken along line VI-VI in FIG. 1 and as viewed in the direction indicated by arrows.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 1 and as viewed in the direction indicated by arrows.

FIGS. 8A and 8B are sectional views taken along line VIII-VIII in FIG. 1 and as viewed in the direction indicated by arrows.

FIG. 9 is a plan view taken along line IX-IX in FIG. 1 and as viewed in the direction indicated by an arrow.

FIG. 10 is an exploded perspective view showing the structure of a lock mechanism.

FIG. 11 is an exploded perspective view of an example of various mechanisms for opening the shutter.

FIGS. 12A, 12B and 12C are explanatory diagrams illustrating the operation of the lock mechanism.

FIG. 13 is an explanatory diagram illustrating a shutter closing operation.

Claims

1. A cartridge for a photosensitive recording medium comprising: a cartridge body having a disc accommodation space for accommodating the photosensitive recording medium rotatably and an inner opening for exposing a central portion and a recording surface of the photosensitive recording medium to an outside;a light shield plate having an outer opening and fixed to the outside of the cartridge body; anda shutter which is provided between the cartridge body and the light shield plate and is movable between a closing position where to close the inner opening and an opening position where to open the inner opening, wherein:a closing-side end of the shutter and at least one of a closing-side edge of the inner opening and a closing-side edge of the outer opening are inclined from each other.

2. The cartridge according to claim 1, wherein a cartridge-inserting-side width and a cartridge-removing-side width of the shutter are different from each other, so that the closing-side end of the shutter and at least one of the closing-side edge of the inner opening and the closing-side edge of the outer opening are inclined from each other.

3. The cartridge according to claim 1, wherein a cartridge-inserting-side width and a cartridge-removing-side width of at least one of the inner opening and the outer opening are different from each other, so that the closing-side end of the shutter and at least one of the closing-side edge of the inner opening and the closing-side edge of the outer opening are inclined from each other.