Photosensitive-recording medium cartridge, and shutter lock cancelling mechanism

Abstract

A photosensitive-recording medium cartridge includes: a photosensitive recording medium; a cartridge body including: a disk housing portion; an internal opening; and a shutter sliding face; a shutter; and a locking mechanism having a locking member, wherein the cartridge body includes a positioning groove including: a shallow groove formed in a side face thereof in the opposite direction of a loading direction of the photosensitive-recording medium cartridge; and a deep groove which is formed deeper in the shallow groove, and the locking mechanism includes a lock canceling member having an operating portion which protrudes from the positioning groove, and pushes the operating portion into the cartridge body to allow cancellation of engagement between the locking member and the shutter.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention disclosed herein will be understood better with reference to the following drawings of which:

FIG. 1 is a perspective view showing an external shape of a cartridge to which the invention is applied;

FIG. 2 is a perspective view showing the opposite face of the cartridge;

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

FIG. 4A is a section view taken along the line IV-IV in FIG. 1 and showing the whole of the cartridge, FIG. 4B is a similar enlarged section view of a peripheral portion of the front end, FIG. 4C is a similar enlarged section view of a peripheral portion of the rear end;

FIG. 5 is an expanded exploded perspective view of main portions of the cartridge in which a shutter and a light-shielding plate are removed away;

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

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

FIG. 8 is an exploded perspective view showing the configuration of a locking mechanism;

FIG. 9 is an exploded perspective view showing an example of a shutter lock canceling mechanism for opening the shutter;

FIG. 10 is a perspective view enlargedly showing main portions of a shutter opening member;

FIGS. 11A to 11C are views illustrating the operation of the locking mechanism;

FIG. 12 is a partially cutaway view showing positional relationships between the locking mechanism and the shutter opening member; and

FIG. 13 is a right side view of the cartridge.

Claims

1. A photosensitive-recording medium cartridge comprising: a photosensitive recording medium;a cartridge body including: a disk housing portion which rotatably storages the photosensitive recording medium;an internal opening through which a center and recording face of the photosensitive recording medium are exposed to an outside; anda shutter sliding face which is formed on an outer face while being inward offset;a shutter which is movable between a closing position where the internal opening is closed, and an opening position where the internal opening is opened, and which is disposed on the shutter sliding face; anda locking mechanism having a locking member which is to be engaged with the shutter to lock the shutter at the closing position,whereinthe cartridge body comprises a positioning groove including:a shallow groove formed in a side face thereof in the opposite direction of a loading direction of the photosensitive-recording medium cartridge; anda deep groove which is formed deeper in the shallow groove, andthe locking mechanism comprises a lock canceling member having an operating portion which protrudes from the positioning groove, and pushes the operating portion into the cartridge body to allow cancellation of engagement between the locking member and the shutter.

2. The photosensitive-recording medium cartridge as claimed in claim 1, whereinthe shutter comprises a slide member including a recess, andthe locking member has a locking piece at one end thereof, the locking member being engaged with the recess, and each of the shutter and locking member having a shape inclined in an opposite direction of a opening direction of the shutter.

3. A shutter lock canceling mechanism that is to be disposed in a recording and reproducing apparatus into which a photosensitive-recording medium cartridge according to claim 1 is to be loaded, and which records data on the photosensitive recording medium, or reproduces recorded data from the medium, whereinthe shutter lock canceling mechanism comprises a positioning member which includes a ridge and which is to be fitted into the positioning groove, the ridge being fitted into the deep groove to push the operating portion into the cartridge body when the photosensitive recording medium is loaded into the recording and reproducing apparatus.

4. The shutter lock canceling mechanism as claimed in claim 3, which comprises a shutter opening mechanism including a shutter opening member, whereinthe photosensitive-recording medium cartridge comprises a slide member including a engaging groove having width, which narrows in a direction perpendicular to a width direction thereof, andthe shutter opening member engages the engaging groove.