| 摘要 |
PURPOSE: A reel cap of headphone stereo cassette is provided to minimize vibration of an up and down direction and to reduce noise occurrence by forming one side of driving protrusion of the reel cap to be inclined and contacting to a tape hub when the reel cap rotates. CONSTITUTION: A cap body(52) is rotated selectively by an additional driving source on a main chassis, and is inserted into a tape hub of a tape cassette. A driving protrusion(54) is formed at the side peripheral of the cap body(52) and is interlocked for rotation with the tape hub. The driving protrusion(54) is formed so that a contact angle of a driving surface to be contacted with the tape hub is different with a contact angle of a driven surface to be contacted with the tape hub. The driving surface transfers a rotation power to the tape hub, the driven surface receives a rotation power from the tape hub. The protrusion of the driving surface is formed vertically against the earth, one of the driven surface is formed to be inclined to the earth.
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