Disk cartridge

摘要

The invention relates to a disk cartridge including a structure for moving a shutter provided slidably on a disk cartridge for accommodating a disk to open and close a head hole for receiving a reading/writing head and a spindle hole. The structure comprises: a slider slidably engaged with a guide portion formed on a front end of a case of the cartridge to support the shutter, and a spring member for urging the slider in a direction where the shutter closes the head and spindle holes. The spring member has one arm whose distal end is received in one end of the slider as a first spring receiving portion and the other arm whose distal end is received in a second spring receiving portion formed at a front corner of the case. The one end of the slider forms an engaging projection body engaging with inside of the guide portion in addition to the first spring receiving portion. The engaging projection body has a pair of projections formed at a bottom of the one end of the slider so as to be extended rearwardly to be engaged with a pair of guide grooves formed on inner walls of the guide portion. A dividing groove is extended into the one end of the slider between the two projections to receive the one arm of the spring member. The one projection is extended rearwardly longer than the other projection. $$