Case

Abstract

A case for holding a cartridge for a disc-shaped information medium, comprising a lower half provided on the recording side of the disc-shaped information medium and an upper half provided so as to engage with the lower half with the disc-shaped information medium sandwiched therebetween in order to allow the disc-shaped information medium to be rotatably held, in which an opening window for exposing the recording side of the disc-shaped information medium in its radial direction is formed in the lower half provided for the cartridge, and shutters for opening and closing the opening window are provided between the lower half and the disc-shaped information medium, wherein said case comprises a bottom panel provided so as to be facing the lower half of the cartridge, a plurality of latching members provided to the bottom panel for latching the cartridge, and a release member provided on the bottom panel so as to lift up the lower case of the cartridge in order to release the latching of the cartridge with one of the plurality of latching members.

Description

TECHNICAL FIELD [0001] The present invention relates to a case that holds a cartridge in which a disc-shaped information medium is rotatably held. BACKGROUND ART [0002] A DVD-RAM cartridge is an example of a cartridge that holds a disc-shaped information medium, and cases for holding such cartridges are known. A case for holding a DVD-RAM cartridge is generally in the form of a pouch having six sides that make up a hexahedral shape, of which the only open side is the one corresponding to the shutter engagement side of the cartridge. With a case such as this for holding a DVD-RAM cartridge, since the cartridge fits snugly in its holding case, there is no wobbling of the cartridge within the holding case, so there is no need for an anti-wobble mechanism. [0003] As disclosed in JP 2001-088884A (Patent Document 1), for example, there has been proposed a cartridge holding case provided with a mechanism for preventing the wobbling of a cartridge within a holding case. This case is provide...

AI Technical Summary

Problems solved by technology

However, the technology disclosed in Patent Document 1 is constituted such that the cartridge is latched by the biasing engagement of a protrusion in a first recess provided to the shutter side end wall of the cartridge, so if the biasing force is increased in an effort to ensure secure latching of the cartridge within the holding case, the first recess can be damaged when repeatedly put into and taken out of the holding case, to the point that it no longer engages properly with the shutter opener of the drive.

As a result the disc held in the cartridge cannot be recorded or reproduced with the drive.

Conversely, if the biasing force between the first recess and the protrusion is decreased, the cartridge will not be sufficiently latched within the holding case, allowing the cartridge to slide freely within the holding case, which is a problem in that external vibration, for instance, can cause the cartridge to wobble and generate noise.

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