| 摘要 |
A cartridge for a disc-shaped recording medium, the cartridge including a cover shell (50) and a base shell (80) which house a flexible, magnetic recording medium therebetween. A movable shutter (54) is provided along a front edge (60) of the cartridge for covering, when in the closed position, an opening (56, 86) in each shell which allows a read/write head to access the recording medium. The shutter is windowless and has triangle-shaped portions (58, 88) which cover the read/write head access openings. The shutter includes a raised rib (114, 144) along its periphery and has a rounded corner (72, 102). A raised rib (78, 108) may also be provided on the cartridge shell adjacent the read/write head access opening to prevent debris particles from entering the interior of the cartridge via the head access opening (58, 88). The shutter is reinforced to prevent bending and has a rounded corner (72, 102) to minimize the chance that the shutter corner will become snagged on some other object, such as loose clothing. |
