Bookshelf type record player
AssigneePioneer Electronic Corporation
InventorsIsami Kenmostu, Nobuyuki Isobe
Life of this patent
Estimating the term…
Abstract
A compact bookshelf type record player having substantially the width as the width of the turntable. A motor slide plate is slidably mounted through a front opening in the player cabinet and slidable between fully retracted, record playing and record changing positions. A tone arm is mounted on the slide plate in such a manner that it can be swung out of the way completely to the rear of the slide plate when not in use. The positions of the slide plate are controlled by operation of a main switch which is of the push-push type with the D.C. motor providing the positioning force.
Claims19
A bookshelf type record player comprising:
- a player cabinet having a depth dimension smaller than the diameter of a standard record disk;
- a tone arm;
- a turntable;
- means for mounting said tone arm at a position adjacent a rear side of said player cabinet said tone arm being rotatable so as to normally extend substantially parallel to said rear side of said player cabinet when said record player is not in a play mode;
- a turntable support member;
- and
- means for movably mounting said turntable support member in said cabinet so that said turntable support member is movable between a play position and a record disc changing position, said record disc changing position being located further from said rear side of said player cabinet than said play position, and constituting a turntable attachment removal position,
- said movable mounting means also being capable of moving said turntable support member in said player cabinet between a retracted position and said play position, said play position being located further from said rear side of said cabinet than said retracted position, said turntable being removed from said turntable support member prior to movement of the same to said retracted position.
A bookshelf type record player comprising:
- a player cabinet;
- a turntable;
- a phonomotor for rotating said turntable;
- a turntable support member, said turntable being attachably and removably mountable on said turntable support member;
- means for movably mounting said turntable support member in said cabinet so that said turntable support member is movable between a retracted position and a play position, said play position being located further from a rear side of said player cabinet than is said retracted position;
- means for detecting the presence of said turntable on said turntable support member when said turntable support member is in a play position, and means for actuating said phonomotor in response to turntable detection.
A bookshelf type record player comprising:
- a player cabinet having a depth dimension smaller than the diameter of a standard record disk;
- a turntable;
- a turntable support member, said turntable being attachably and detachably mounted on said turntable support member;
- means for movably mounting said turntable support member in said cabinet between a retracted position, a record disc changing position whereat said turntable may be mounted on said support member or removed therefrom, and a play position, said play position being located between said retracted position and said record disc changing position along a direction extended perpendicular to a rear side of said cabinet;
- and
- means for detecting the presence of said turntable on said turntable support member when said turntable support member is in a play position.
A bookshelf type record player comprising:
- a player cabinet;
- a turntable support member;
- means for movably mounting said turntable support member in said cabinet so as to be movable towards and away from a rear side of said cabinet;
- a turntable attachably and detachably mountable on said turntable support member;
- means for detecting the presence of said turntable on said turntable support member when said turntable support member is in a play position;
- a tone arm;
- means for mounting said tone arm at a position adjacent said rear side of said cabinet, said tone arm being rotatable so as to extend substantially parallel to said rear side of said player cabinet when said record player is not in a play mode.
A bookshelf type record player comprising:
- a player cabinet;
- a turntable;
- a turntable support member;
- means for mounting said turntable support member in said cabinet so as to be movable towards and away from a rear side of said cabinet;
- a turntable attachably and detachably mountable on said turntable support member;
- means for detecting the presence of said turntable on said turntable support member when said turntable support member is in play position;
- and
- means for rotating said turntable in response to an output of said detecting means.
A bookshelf type record player comprising:
- (a) a player cabinet;
- (b) a turntable support member mounted on said cabinet;
- (c) means for moving said turntable support member between a retracted position at a rear side of said cabinet, a record disc changing position and a play position, said play position being further from said rear side than said retracted position and said record disc changing position being further from said rear side than said play position;
- (d) a turntable detachable from and attachable to said turntable support member;
- (e) a turntable support member moving means control circuit including a first switch adapted to be actuated when said turntable support member is positioned at said retracted position and
- a second switch adapted to be actuated when said turntable support member is positioned at said play position, said control circuit controlling movement of said turntable support member such that when said turntable support member is moved rearwardly from said record disc changing position, at least said first switch is actuated whereby movement of said turntable support member is stopped.
A bookshelf type record player comprising:
- (a) a player cabinet;
- (b) a turntable support member mounted in said cabinet to be movable between a play position and a record disc changing position, said record disc changing position being located further from a rear side of said cabinet than said play position;
- (c) a turntable detachable from and attachable to said turntable support member;
- (d) a tone arm;
- (e) means for mounting said tone arm at a position adjacent said rear side of said cabinet, said tone arm normally being positioned parallel to said rear side of said cabinet when said record player is not in a play mode;
- (f) means for detecting the presence of said turntable on said turntable support member;
- and
- (g) means for positioning said tone arm, wherein when said turntable support member is moved from said record disc changing position to said playing position when the presence of the turntable on said turntable support member is detected by said detecting means, said tone arm is rotated to a position above said turntable.
A bookshelf type record player comprising:
- (a) a player cabinet;
- (b) a turntable support member mounted in said cabinet to be movable between a play position and a record disc changing position, said record disc changing position being located further from a rear side of said cabinet than said play position;
- (c) a turntable detachable from and attachable to said turntable support member;
- (d) a tone arm;
- and
- (e) a setting lever mounted to be rotatable by said turntable and said turntable support member, said setting lever rotating said tone arm to a position above said turntable when said setting lever is rotated by said turntable and said turntable support member,
- wherein said turntable support member is moved from said record disc changing position to said play position when said turntable is positioned on said turntable support member, said setting lever is rotated first by said turntable and then by said turntable support member so that said setting lever rotates said tone arm to said position above said turntable.
A bookshelf type record player comprising:
- (a) a player cabinet;
- (b) a turntable support member mounted in said player cabinet to be movable between a play position and a record disc changing position, said record disc changing position being located further from a rear side of said cabinet than said play position;
- (c) a turntable detachable from and attachable to said turntable support member;
- (d) a tone arm;
- (e) a setting lever adapted to be rotated by said turntable and said turntable support member to rotate said tone arm to a position above said turntable when said setting lever is so rotated;
- and
- (f) a driving mechanism for separating said setting lever from said turntable when said setting lever is rotated by said turntable support member,
- wherein as said turntable support member is moved from said record disc changing position to said play position while said turntable is positioned on said turntable support member, said turntable engages said setting lever and initially rotates said setting lever until said driving mechanism causes said turntable support member to engage said setting lever and further rotates said setting lever away from said turntable, rotation of said setting lever causing said tone arm to rotate to said position above said turntable.
A bookshelf type record player comprising:
- (a) a player cabinet;
- (b) a turntable support member mounted in said cabinet to be movable between a play position and a record disc changing position, said record disc changing position being located further from a rear side of said cabinet than said play position;
- (c) a turntable;
- (d) a tone arm;
- and
- (e) a setting lever having at one end an abutting portion for abutting against said turntable, at an intermediate portion a locking projection, and at the other end, means for rotating said tone arm,
- wherein as said turntable support member is moved from said record disc changing position to said play position said abutting portion initially is engaged with said turntable thereby causing said setting lever to rotate a predetermined distance, and thereafter said locking projection is engaged with an associated projection formed on said turntable support member to thereby further rotate said setting lever and to separate said abutting portion from said turntable.
A bookshelf type record player comprising:
- a player cabinet having closed upper, side and rear surfaces;
- a motor slide plate slidably mounted in said cabinet to slide between retracted, play and record disc changing positions, in said retracted position, said slide plate being fully received within said cabinet;
- a phonomotor secured to said slide plate;
- a turntable attachable to and detachable from a shaft of said phonometer;
- a D.C. motor fixed to said cabinet at a rear position thereof;
- gear reduction means operatively coupled to said D.C. motor;
- a crank mechanism operatively coupling said gear reduction means to said slide plate, wherein operation of said D.C. motor slides said slide plate in or out of said cabinet in dependence upon the direction of rotation of said D.C. motor;
- first and second limit switches mounted on said player cabinet adjacent said slide plate;
- an actuating strip mounted on said slide plate wherein said actuating strip contacts a respective one of said first and second limit switches at positions corresponding to said retracted position and said disc changing position of said slide plate;
- a setting lever rotatably supported on a bottom plate of said player cabinet, said setting lever having a roller at one end thereof adapted to contact said turntable when said turntable is positioned on said shaft of said phonomotor, a locking projection being provided at an intermediate portion of said setting lever, said locking projection adapted to contact an associated projection formed on said motor slide plate;
- a slide lever slidably mounted on said bottom of said player cabinet at a position to a side of said slide plate, said slide lever being slidable parallel to a direction of sliding of said slide plate, a spring being provided for urging said slide lever to move rearwardly towards a rear side of said cabinet;
- a tone arm mounted on said slide plate at such a position that said tone arm normally extends substantially parallel to said rear side of said cabinet when not in a play mode;
- a third limit switch operatively positioned to be actuated by said tone arm when said tone arm is at a position above a record disc;
- a U-shaped click member adapted for selectively engaging a tone arm rotating pin which is coupled to rotate with said tone arm, said U-shaped click member being pivotally coupled to said slide lever so as to confront a cutaway portion of said slide lever at a rear end of said slide lever, said U-shaped click member being biased in a click manner by a spring;
- a tone arm rotating arm secured to a vertical shaft of said tone arm for rotation with said tone arm, said tone arm rotating pin being selectively engaged with said U-shaped click member;
- a tone arm elevation lever rotatably supported at a center portion thereof to said bottom plate of said cabinet on a side of said slide lever opposite said slide plate, said tone arm elevation lever being movable up and down;
- an arm lifter having an arcuate arm supporting member provided adjacent said vertical shaft of said tone arm and being coupled to said tone arm elevation lever;
- and
- a fourth limit switch provided adjacent said tone arm elevation lever wherein, when said tone arm elevation lever is rotated in a counterclockwise direction with said tone arm in a lower position, said fourth limit switch is actuated by said tone arm elevation lever.
Dependencies are inferred from the claim text.