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AssigneePioneer Electronic Corporation
InventorsYoshiyuki Takizawa, Norihiko Itoh, Takashi Kashiwazaki, Tomomitsu Takano, Junji Kobayashi
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A friction force drive capstan tape recorder having movable arms to tension a tape between an idler and a drive capstan. The displacement of the arms is sensed to provide an input signal to a control circuit to vary the rotational torque of the take-up reel motor. This closed loop system allows constant tension to be maintained on the tape and the sensing of the end of the tape. Freely rotatable tape shifters are provided to minimize tension loss. The movable arms are outwardly displaceable to facilitate tape loading by means of a gear train coupled to the operating lever. At the same time the rollers are displaced to facilitate tape handling. A switch may be coupled to the operating lever to provide power to the system or cut it off.
In a reel to reel friction force drive capstan tape recorder wherein a tape is fed from a supply reel to a take-up reel, a motor for driving said take-up reel, said tape being wound between an idler, a drive capstan and rollers mounted on movable arms, means for biasing said arms to vary the winding angles of said tape relative to said capstan and said idler, the improvement comprising, means for sensing the position of at least one of said arms, control means responsive to said sensing means for controlling the rotational power of said take-up and supply reels, said recorder having a plurality of operational modes, and said control means including means for determining the rotational power to be imparted to said reels in accordance with the operational mode of said recorder.
In a reel to reel tape recorder wherein a tape is fed from a supply reel to a take-up reel, said tape being wound between an idler, a drive capstan and rollers mounted on movable arms, the improvement comprising, means for rotating said arms and means for moving said rollers in a vertical direction along axes of rotation thereof, the movement of said rollers being perpendicular to a plane of rotation of said arms.
Dependencies are inferred from the claim text.