Pioneer Electronic Corporation

Masayoshi Sakamoto

Shozo Ema

Toshio Hosono

Minoru Kamata

An improved selection/drive system is incorporated in a magnetic tape recording/reproducing apparatus such that the apparatus may be changed into any of the stop, playback, pause, que and review operations by making use of a single drive gear rotating with a capstan. A sector gear selectively meshes with the drive gear and has first, second and third engaging stubs thereon, and first, second, third and fourth locking members interlocked with operation buttons are selectively engaged with the stubs to lock the sector gear at any of predetermined angles of rotation for establishing the stop, playback, pause, fast-forward or rewind state.

Selection/drive system for use in a tape recording/reproducing apparatus

The head base drive mechanism for cassette tape players. The head base which is normally urged toward the stop position is advanced to the play-back position using the rotation of the capstan. A pinion integrally provided on the flywheel of the capstan is engaged or disengaged with a sector gear. The sector gear is blocked from rotation after it goes out of said engagement and before it comes into engagement with the pinion. Since the sector gear is urged in a predetermined direction by way of a cam attached thereto, the release of said blocking causes the sector gear to rotate very quickly while the pinion is in facing relation to the untoothed position of the sector gear. Meantime, the cam actuates the head base to advance it to the play-back position through gear transmission whereas it restores the head base to the stop position quickly with the force by which the sector gear is urged.

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Tokorozawa, Japan

Masayoshi Sakamoto