| 摘要 |
PURPOSE:To attain easily and surely the assembling of a disc cassette case and a shutter by designing the length of the projection of the shutter to a specified value and providing a spring retain section to the shutter. CONSTITUTION:The both ends of a spring 17 are coupled to each retain section of cassette housing 1 and the shutter 11. In turning the shutter 11 around a cut- off section 33 of a notch 32 of the housing 1, the housing 1 and the shutter 11 are assembled easily and surely by being guided with a groove 21 so that the 1st projection 18 of the shutter 11 longer than the notch length of the 1st guide groove 21 does not come out. Further, since the spring 17 is coupled at assembling, the inconvenience such as the tangling of the spring free end before the assembling is not produced. |
