Photosensitive recording medium cartridge

Abstract

A cartridge including: a photosensitive recording medium; a cartridge body including a disc receiving portion for receiving the photosensitive recording medium rotatably, an opening portion formed in a side surface in a direction of insertion, a light-shield plate mounting surface provided on an outer surface, and an inner opening for exposing a center and a recording surface of the photosensitive recording medium to an outside; a light-shield plate inserted from the side surface of the cartridge body on the opening portion side and mounted onto the light-shield plate mounting surface; and a lid which is fixed to the side surface of the cartridge body so as to close the opening portion and fix the light-shield plate to the cartridge body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the external appearance of a cartridge according to the invention.

FIG. 2 is a perspective view showing an opposite surface of the cartridge.

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

FIGS. 4A, 4B and 4C are sectional views taken along the line IV-IV in FIG. 1, FIG. 4A being a sectional view showing the whole of the cartridge, FIG. 4B being an enlarged sectional view showing a front end marginal portion of the cartridge, FIG. 4C being an enlarged sectional view showing a rear end marginal portion of the cartridge.

FIG. 5 is an enlarged exploded perspective view showing important part of the cartridge in a state where a shutter and a light-shield plate have been removed.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 1.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 1.

FIGS. 8A and 8B are sectional views taken along the line VIII-VIII in FIG. 1.

FIG. 9 is a plan view from the arrow IX in FIG. 1.

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

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

FIGS. 12A, 12B and 12C are views for explaining the operation of the lock mechanism.

Claims

1. A cartridge comprising: a photosensitive recording medium;a cartridge body including a disc receiving portion for receiving the photosensitive recording medium rotatably, an opening portion formed in a side surface in a direction of insertion, a light-shield plate mounting surface provided on an outer surface, and an inner opening for exposing a center and a recording surface of the photosensitive recording medium to an outside;a light-shield plate inserted from the side surface of the cartridge body on the opening portion side and mounted onto the light-shield plate mounting surface; anda lid which is fixed to the side surface of the cartridge body so as to close the opening portion and fix the light-shield plate to the cartridge body.

2. The cartridge according to claim 1, wherein: the light-shield plate mounting surface has an abutment portion on which a marginal portion of the light-shield plate abuts, and a light-shield plate receiving groove provided in the abutment portion so that the marginal portion is fitted into the light-shield plate receiving groove;the lid has a lid groove portion into which the marginal portion of the light-shield plate disposed on the opening portion side is fitted; andthe light-shield plate is fixed in such a manner that the marginal portion of the light-shield plate is fitted into the light-shield plate receiving groove and the lid groove portion.

3. The cartridge according to claim 1, wherein the lid is formed so as to be longer than the marginal portion on the opening portion side.

4. The cartridge according to claim 1, wherein the light-shield plate mounting surface has a shutter slide surface which is offset inward so that a shutter is movably disposed between a closed position for closing the inner opening and an opened position for opening the inner opening.

5. The cartridge according to claim 1, wherein the photosensitive recording medium is a holographic recording medium.