Nihon Technical Kabushiki Kaisha

Ryousuke Hatanaka

A head plate operating mechanism for a cassette tape player has a head plate carrying a magnetic head and movably mounted on a frame for movement between non-play and play positions. A power-assisting notched gear having a crank pin on a rotation surface thereof rotates when a tape cassette is loaded into the player. A slide member movably connected to the head plate is actuated to move by slidably contacting with the crank pin of the rotating notched gear and restrains the head plate in its non-play position when the slide member is in its non-actuated state but releases the head plate so as to allow the movement of the head plate between the non-play and play positions when the slide member has been actuated by the crank pin. A locking mechanism releasably locks the slide member in its actuated state, and a control member connected to the head plate is actuated by slidably contacting with the crank pin of the rotating notched gear so as to effect displacement of the head plate from the non-play position to the play position with a time lag after the slide member has been actuated by the crank pin and locked in its actuated state by the locking mechanism.

Head plate operating mechanism for cassette tape player

A tape player according to the present invention has a pivotal lever which is pivotally moved horizontally, when a tape cassette is loaded, from its ejection position to its loading position, the pivotal lever having a member engaged with a reel hole when a cassette is loaded connected to one end thereof, a pivotal member pivotally mounted horizontally pivotably having an operatively connecting member formed to be precluded from pivotal movement outside an instrument frame by used of an ejecting member in a non-lay state and adapted to control a spacing between opposite ends a torsion coil spring opposite ends of which are engaged by the pivotal lever and the pivotal member, respectively, further comprising an actuating member allowing pivotal movement of the pivotal lever when the latter is pivotally moved from the ejection position to the loading position and causing the pivotal lever to be pivotally moved from the loading position to the ejection position along with the operation of the ejecting member, a slidable retaining member for retaining a cassette holder in the non-play state provided with a mechanism by which the cassette holder loaded in the cassette is shifted from the non-play state occupying the upper stage position to the play state occupying the lower stage position, and a defining member provided on the retaining member, the defining member being engaged with the actuating member when the pivotal lever is in the ejection position to restrain sliding movement of the retaining member while allowing the sliding movement of the retaining member when in the loading position to release the retaining state of the cassette holder, characterized in that when the ejecting member is operated, the preclusion of pivotal movement of the pivotal member is released to return the cassette holder from the lower stage position to the upper stage position.

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Sayama, Japan

Ryousuke Hatanaka