US 4,542,430 AGranted

Tape recorder

AssigneeTokyo Shibaura Denki Kabushiki Kaisha

InventorsSeiji Tomita, Kaoru Morinaga, Yoshihiro Kotoda

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Abstract

A tape recorder has a forward/reverse switching mechanism for switching between forward travel and reverse travel at normal speed, and a track switching mechanism for supporting a recording/playback head to be pivotal between positions where the recording/playback head is aligned with tracks of the tape in forward travel and reverse travel at normal speed. In response to the switching operation of the forward/reverse switching mechanism, a control lever is pivoted in one direction by a cam portion of a gear to selectively engage projections with projections of a driving shaft to rotate it in different directions. The track switching mechanism is driven by the drive slider which is slid in different directions upon movement of the driving shaft.

Claims14

Dependent claims

A tape recorder having a head for recording and playing back a tape,

forward/reverse switching means for switching from forward tape travel to reverse tape travel at normal speed and vice versa,
track switching means for supporting and moving said head between positions corresponding to track of the tape in accordance with reverse tape travel and forward tape travel at normal speed;
and
drive means for moving said head into the position where said head corresponds to the track of the tape in accordance with one of reverse tape travel and forward tape travel at normal speed by driving said track switching means in response to a switching operation of said forward/reverse switching means, wherein said drive means includes:
(a) control means pivotal about a pivot center and receiving a pivotal driving force to pivot said control means about said pivot center in one direction in response to the switching operation of said forward/reverse switching means, said control means having first and second engaging portions respectively disposed at different positions relative to said pivot center;
(b) control switching means having third and fourth engaging portions at positions respectively opposing said first and second engaging portions of said control means for respective engagement with said first and second engaging portions, said control switching means including (1) support means for supporting said control switching means for (i) rectilinear movement between advanced and retracted positions to permit selective engagement of said third and fourth engaging portions with said first and second engaging portions, respectively, and (ii) pivotal movement in forward and reverse directions about a pivot axis, and (2) moving means for rectilinearly moving said control switching means between said advanced and retracted positions, said control switching means respectively pivoting in said forward or reverse directions in dependence upon its being in said advanced or retracted positions which inturn causes selective respective engagement between said first and second engaging portions and said third and fourth engaging portions in response to said control means pivoting in said one direction;
and
(c) drive slider means operatively interconnecting said control switching means and said track switching means and mounted for reciprocal sliding movement between forward and reverse positions in response to said control switching means pivoting between said forward and reverse directions, respectively, said drive slider means for driving said track switching means to move said head between positions corresponding to tracks of the tape in accordance with forward tape travel and reverse tape travel in dependence upon said drive slider means moving between said forward and reverse positions, respectively.

5 more elements

A tape recorder having a head for recording and playing back a tape comprising:

forward/reverse switching means for switching between forward tape travel and reverse tape travel at normal speed;
track switching means for supporting and moving said head between forward and reverse positions corresponding to tracks of the tape in accordance with forward tape travel and reverse tape travel at normal speed;
and
drive means for moving said head into a position where said head corresponds to the track of the tape in accordance with one of reverse tape travel and forward tape travel at normal speed by driving said track-switching means in response to a switching operation of said forward/reverse switching means, said drive means including:
(a) control means pivotal in one direction about a pivot center in response to the switching operation of said forward/reverse switching means for controlling movement of said track-switching means between said forward and reverse positions, said control means including means defining first and second engaging portions;
and
(b) control switching means operatively interconnecting said control means and said track switching means for selectively translating pivotal movement of said control means in said one direction into movement of said track-switching means to move said head into one of said forward and reverse positions in dependence upon said switching operation of said forward/reverse switching means, said control switching means including (i) means defining third and fourth engaging portions at positions respectively opposable to said first and second engaging portions, (ii) support means for supporting said control switching means for rectilinear movement between advanced and retracted positions to permit respective selective engagement between said first and third engaging portions and between said second and fourth engaging portions, said support means also supporting said control switching means for pivotal movement in forward and reverse directions about a pivot axis, and (iii) moving means for rectilinearly moving said control switching means between said advanced and retracted positions, wherein
said control switching means respectively pivots in said forward or reverse directions in dependence upon its being in said advanced or retracted positions which inturn causes said respective selective engagement between said first and third engaging portions and between said second and fourth engaging portions in response to said control means pivoting in said one direction whereby said head is moved into one of said forward and reverse positions, respectively.

5 more elements

Dependencies are inferred from the claim text.

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Abstract

A tape recorder having a head for recording and playing back a tape,

forward/reverse switching means for switching from forward tape travel to reverse tape travel at normal speed and vice versa,
track switching means for supporting and moving said head between positions corresponding to track of the tape in accordance with reverse tape travel and forward tape travel at normal speed;
and
drive means for moving said head into the position where said head corresponds to the track of the tape in accordance with one of reverse tape travel and forward tape travel at normal speed by driving said track switching means in response to a switching operation of said forward/reverse switching means, wherein said drive means includes:
(a) control means pivotal about a pivot center and receiving a pivotal driving force to pivot said control means about said pivot center in one direction in response to the switching operation of said forward/reverse switching means, said control means having first and second engaging portions respectively disposed at different positions relative to said pivot center;
(b) control switching means having third and fourth engaging portions at positions respectively opposing said first and second engaging portions of said control means for respective engagement with said first and second engaging portions, said control switching means including (1) support means for supporting said control switching means for (i) rectilinear movement between advanced and retracted positions to permit selective engagement of said third and fourth engaging portions with said first and second engaging portions, respectively, and (ii) pivotal movement in forward and reverse directions about a pivot axis, and (2) moving means for rectilinearly moving said control switching means between said advanced and retracted positions, said control switching means respectively pivoting in said forward or reverse directions in dependence upon its being in said advanced or retracted positions which inturn causes selective respective engagement between said first and second engaging portions and said third and fourth engaging portions in response to said control means pivoting in said one direction;
and
(c) drive slider means operatively interconnecting said control switching means and said track switching means and mounted for reciprocal sliding movement between forward and reverse positions in response to said control switching means pivoting between said forward and reverse directions, respectively, said drive slider means for driving said track switching means to move said head between positions corresponding to tracks of the tape in accordance with forward tape travel and reverse tape travel in dependence upon said drive slider means moving between said forward and reverse positions, respectively.

5 more elements