| 摘要 |
A playback/recording apparatus, which operates with a recording tape medium, having a playback/recording head and tape driving capstan/pinch rollers mounted in cooperative relation, a loading/unloading mechanism which loads and unloads the tape medium between a loading/unloading position and an operative position associated with the playback/recording head and tape driving capstan/pinch rollers, a single power source, a mobile element which is driven by the power source along a linear path in forward and return stroke movements, the power source being controlled to shift the mobile element to different locations along its linear path responsive to a function change instruction to the power source, a selectively operated ratchet for connecting the mobile element to operate the loading/unloading mechanism in the course of a loading and unloading phase of the forward and return stroke movements to load and unload a tape medium, and a connection from the mobile element to set the reversal mechanism which is operated by the mobile element responsive to movement to certain of its locations to reverse travel direction of the tape medium, the mobile element being directly movable from any one location to another responsive to a function change instruction to the power source.
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