SLIDING SHUTTER ARRANGEMENT FOR DISK CASSETTE

摘要

A disk cassette arrangement which includes a double sided disk is arranged to be used in both dual and single head disk drive units. The cassette case is comprised of upper and lower halves or shells which are formed so that a reinforcing rib is defined when they are coupled together. A guide slot is formed in the rib. The cassette features a shutter which has a U-shaped cross-section and which is slidably disposed on the leading edge of the cassette case. A projection which extends from the inboard edge of the shutter has a barbed like arrangement which can be inserted through a tapered section of the guide slot.