| 摘要 |
Dust free tape cassette comprises a cassette case and a front lid for holding protectively therein a magnetic tape being wound on reels which are supported by a pair of shafts stationary provided in the cassette case. A loading pocket being open at a bottom of the cassette case for accepting tape drawing members and reel driving members of tape recording/playback apparatus, is provided behind the front lid. The loading pocket has a rear wall which partitions the reels off the loading pocket, wherein reel flanges which may have gear portions partly protrude into the loading pocket through windows provided on the rear wall so that the magnetic tape housed in the cassette case is well protected from dust invasion and abuse thereof when not loaded into the apparatus, and when loaded the reel driving members enter into the loading pocket and engage with the flanges at their protruded portions to drive thereof. A slidable dust shield is provided for closing and exposing the loading pocket. An apparatus for using the above cassette is also disclosed.
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