US3624308A

US3624308A - Tape recorder with automatic release from fast speed by sensing pauses between recorded material

Info

Publication number: US3624308A
Application number: US23682A
Authority: US
Inventors: Isao Kozu; Yukitada Ayukawa
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1969-04-16
Filing date: 1970-03-30
Publication date: 1971-11-30
Anticipated expiration: 1988-11-30
Also published as: GB1308192A; DE2018838B2; FR2043308A5; NL7005502A; DE2018838A1; DE2018838C3

Abstract

A tape recorder for detecting a pause portion between signal bands on a tape while the tape is being moved at a higher speed than a tape-playing speed and for playing back a signal band from its beginning. The tape recorder has a tape-moving drive for moving a tape at a tape-playing speed, winding drive for moving the tape at a higher speed than the tape-playing speed, operating linkage for bringing the winding drive into its operative state, holding linkage for holding the operating means linkage at an operative position, a transducing head for reproducing signals recorded on the tape according to movement of the tape, an electric amplifier connected to the head, a detecting circuit coupled to the amplifier to detect a pause portion between signal bands on the tape, an electromagnet responsive to the pause portion detected by the detecting circuit while the tape is being moved by the winding drive, a driving device driven by a motor, and releasing linkage for releasing the operating linkage from the holding linkage upon engagement of the driving device with the releasing linkage so that the winding drive is brought into its inoperative state when the releasing linkage is actuated by the electromagnet upon detection of the pause portion on the tape.

Description

United States Patent [72] Inventors lsao Kozu; 3,355,557 11/1967 Laa 179/1002 S Yukitada Ayukawa, both of Osaka, Japan 3,305,240 2/1967 179/ 1 00.2 S [21] Appl. No. 23,682 2,782,262 2/1957 179/1002 S [22] Filed Mar. 30,1970 2,606,253 8/1952 Somers 179/1001 VC [45] Patented Nov. 30,1971 2,396,409 3/1946 Berzer 179/1002 S [73] Assignee Matsushita Electric Industrial Co., Ltd. FOREIGN PATENTS I saka,Japan i [32] Priorities p 16,1969 810,111 3/1959 Great Brltain 179/1002 S [33] Japan Primary Examiner- Bernard Konick [31] 44/30862; Assistant Examiner Raymond F. Cardillo, Jr.

Apr. 16, 1969, Japan, No. 44/150863; Apr. Altorney-Wender k & I'IB k 16, 1969, Japan, No. 44/30864; Apr. 16, 1969, Japan, No. 44/380865 ABSTRACT: A tape recorder for detecting a pause portion between signal bands on a tape while the tape is being moved [54] TAPE RECORDER WITH AUTOMATIC RELEASE at a higher speed than a tape-playing speed and for playing FROM FAST SPEED BY SENSING PAUSES back a signal band from its beginning. The tape recorder has a BETWEEN RECORDED MATERIAL tape-moving drive for moving a tape at a tape-playing speed, Claims, 6 Drawing Figs. winding drive for moving the tape at a higher speed than the tape-playing speed, operating linkage for bringing the winding U.S.Cl drive in") its operative slate holding linkage for holding the I I In Cub i operating means linkage at an operative position, a transduc- G1 lb 15 ing head for reproducing signals recorded on the tape accord- Field {8 h 179 ing to movement of the tape, an electric amplifier connected 0 226/9 to the head, a detecting circuit coupled to the amplifier to de- 6 tect a pause portion between signal bands on the tape, an electromagnet responsive to the pause portion detected by the de- 56] Reerences cued tecting circuit while the tape is being moved by the winding drive, a driving device driven by a motor, and releasing link- 3 5 I4 050 5 Egg 3 STATES PATENTS age for releasing the operating linkage from the holding linkamdmom 242/198 age upon engagement of the driving device with the releasing 3'505'485 4/1970 A 179/1001 VC linkage so that the winding drive is brought into its inoperative 3'434'725 3/l969 Elbenslemel' 179/|00-2 5 state when the releasing linkage is actuated by the electromag- 3,376,564 4/1968 Holland 179/1002 S net upon detection f the pause portion on the tape.

as L L 72 x 66 r t 112 I 38 ,484 22 E :5 186 no 182 a? H a v no 56 180 g 34 [8 O 188 |7 2\ i izg f W {fi 162 7 I 1% ll 174 1 I40 13s 146 I30 98 1 8 42 7 I68 48 144- 25 12 i I50 128 I18 88 381080131 I16 i 1 9s 91 1' l s2 i so 78 PATENTEU NUVSO l97| SHEET 1 OF 4 FIG] INVENTORS ISAO KOZU YUKITADA AYUKAWA BY fi/md 2514 am ATTORNEYS Pmiminmvamsn 3324,1308

SHEEI 2 0F 4 INVENTORS 154w KOZU YUKI TADA AYUKAWA BY %MW% WM ATTORNEYS PATENTEUuuvsousn I 3.624; 308

SHEEI 3 or 4 FIG. 3

INVENTOIB ISAO KOZU YUKDTADA AYUKAWA ATTORNEYS PATENTED NUV30 ISYI SHEET 4 [IF 4 FIG. 5

I92 I94 I92 I94 |92 194. I92 INVENTORS FIG. 6

ATTORNEYS TAPE RECORDER WITH AUTOMATIC RELEASE FROM FAST SPEED BY SENSING PAUSES BETWEEN RECORDED MATERIAL This invention relates to a tape recorder, and more particularly to a tape recorder capable of detecting a pause portion between signal bands on the tape automatically so that a signal band, such as a tune of music, is reproduced from its beginning.

Music tape usually has a plurality of tunes prerecorded thereon. If one wants to hear the second tune or the third tune on the tape from its beginning, he has to operate a control knob or operating keys many times before he finds out the beginning of the desired tune in a conventional tape recorder. Such trouble will also occur when he wants to hear the same tune repeatedly from its beginning.

The pause portion can not be detected exactly even with the tape recorder having a tape counter, since an indicated number of the tape counter does not always exactly correspond with the length that a tape has been moved. Moreover, it is necessary for him to memorize the number indicated by the tape counter in advance.

It is, therefore, a general object of the present invention to provide a novel tape recorder. wherein a pause portion between signal bands is automatically detected while the tape is moving at a higher speed than a tape-playing speed.

It is another object of the present invention to provide an improved tape recorder wherein winding means for moving a tape at a higher speed than a tape-playing speed is brought into its inoperative state by a rotational force of a motor upon detection of a pause position on the tape.

It is still another object of the present invention to provide a tape recorder as defined in the preceding paragraph with novel means reliable in operation for detecting the pause portion accurately.

It is still another object of the present invention to provide an improved tape recorder wherein a signal band is automatically reproduced from its beginning after a tape is moved at a higher speed than a tape-playing speed by using novel holding means for holding both the tape moving means and the winding means in their operative states.

These objects of the present invention are achieved by a tape recorder which comprises a tape moving means for moving a tape at a tape-playing speed, winding means for moving said tape at a higher speed than said tape-playing speed, operating means for bringing said winding means into its operative state, holding means for holding said operating means at an operative position, a transducing head for reproducing signals recorded on said tape according to move ment of the tape, an electric amplifier connected to said head, a detecting circuit coupled to said amplifier to detect a pause portion between signal bands on said tape, an electromagnet responsive to said pause portion detected by said detecting circuit while said tape is being moved by said winding means, driving means driven by a motor, and releasing means for releasing said operating means from said holding means upon engagement of said driving means with said releasing means so that said winding means is brought into its inoperative state when said releasing means is actuated by said electromagnet upon detection of said pause portion on said tape.

The invention will become fully apparent from the following detailed description of one embodiment of the invention taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic plan view of the tape recorder according to the present invention;

FIG. 2 is a schematic plan view to FIG. I, but in its playing state;

FIG. 3 is a schematic plan view of the tape recorder similar to FIG. I, but in its tape-winding state where the tape moves in a first direction at a higher speed than a tape-playing speed;

FIG. 4 is a schematic plan view of the tape recorder similar to FIG. 1, but in its tape-winding state where the tape moves in a second direction at a higher speed than a tape-playing speed;

FIG. 5 is a diagrammatic illustration of electric circuits used in the tape recorder of the present invention; and

of the tape recorder similar takeup reel 42.

FIG. 6 is a fragmentary view of a recorder of the present invention.

Referring to FIG. I, a motor 10 is attached on a chassis 12. A rotating body 14 which consists of a capstan l6 and a flywheel 18 is rotatably mounted on said chassis 12 by a suitable bearing (not shown). An endless belt 20 is disposed between said motor 10 and flywheel 18 so that said rotating body 14 is rotated in a direction of an arrow 22 by the motor 10. Y Y

A pressure roller 24 is rotatably mounted on an end of an arm 26 which is pivotally mounted on a shaft 28 secured to the chassis 12. The pressure roller 24 is biased toward said capstan 16 by a spring 30 connected to said arm 26.

A transducing head 32 is mounted on said arm 26. At a position faced to said head 32, the chassis 12 is provided with a pad 34 adhered to a leaf spring 36. A magnetic tape 38 wound on a supply reel 40 is forwarded from said supply reel 40, through a tape-moving path between said pad 34 and the head 32 and between the capstan l6 and the pressure roller 24, to a takeup reel 42 so as to be wound thereon.

When the tape 38 moves in the direction of an arrow 44 at a tape-playing speed upon engagement of the pressure roller 24 with the capstan 16 in a playing state of the tape recorder in this embodiment, the tape 38 is wound on the takeup reel 42 through a frictional slipping mechanism. Since the details of such slipping mechanisms are well known in the art, it will be unnecessary to describe them herein. There is no need to have such slipping mechanism in case of "a continuous loop-type tape recorder, a so called tape recorder for use with an endless tape cartridge.

The tape 38 is moved at a higher speed than the tape-playing speed by winding means which will be explained in detail hereinafter.

In this embodiment of the present invention, such winding means comprises a first winding means for moving the tape in a first direction indicated by the arrow 44 and a second winding means for moving the tape in a second direction reverse to the arrow 44. The takeup reel 42 is placed on a reel roller 46 which is rotatably mounted on a shaft 48 secured to the chassis 12. The supply reel 40 is placed on a reel roller 50 which is rotatably mounted on a shaft 52 secured to the chassis 12. An idler wheel 54 is rotatably mounted on a shaft 56 secured to an end of an arm 58 which is rotatably and slidably mounted on a shaft 60 secured on the chassis 12. A spring 62 is connected to arm 58 to bias the idler wheel 54 toward a position between the flywheel 18 and the reel roller 46.

When the idler wheel 54 is brought into driving engagement with the flywheel l8 and with reel roller 46, the reel roller 46 rotates counterclockwise so as to wind the tape 38 on the In this case, the tape 38 moves in the direction of the arrow 44 at ahigher speed than a tape-playing speed.

Construction of second winding means is as follows. A lever 64 is pivotally mounted on a shaft 66 secured on the chassis l2, and has a pulley 68 mounted rotatably at one end thereof. A belt 70 is disposed between pulley 68 and the reel roller 50.

Lever 64 is biased counterclockwise by a spring 72 attached to a second end 74 of the lever 64 so as to engage belt 70 wound on the pulley 68 with the peripheral surface of the flywheel 18. When belt 70 is engaged with the flywheel 18, the reel roller 50 rotates clockwise so as to wind the tape 38 on the supply reel 40. In this case, the tape 38 moves in a direction opposite to the arrow 44 at a higher speed than the tape-playin g speed.

When the tape recorder, is stopped, the winding means is maintained in its inoperative state by operating means which will be described in detail hereinafter.

The operating means includes a play key 76, a first winding key 78, a second winding key and a stop key 82. The play key 76 is coupled to the tape-driving means in a manner that will be explained herein. Play key 76 is secured to a front end of a plate 84 which is slidably mounted on the chassis 12 by

guide pins

86 and 88. Plate 84 has a pin 90 secured to an end portion thereof. A spring 92 attached to plate 84 urges the play key Y76 and the plate 84 in a direction indicated by an tape used in the tape arrow 94 so as to keep them at the inoperative position as shown in FIG. 1.

When the play key 76 is positioned at its inoperative position, the pin 90 on the plate 84 drives the arm 26 clockwise so that the head 32 is kept apart from the tape 38 and the pad 34, and the pressure roller 24 is kept apart from the tape 38 and the capstan 16 as shown in FIG. I.

The first winding key 78 is coupled to the first winding means in a manner that will be explained herein. First winding key 78 is secured to a front end of a plate 96 which is slidably mounted on the chassis 12 by

guide pins

98 and 100. The other end of plate 96 forms a hook portion 102 which engages with a pin 104 secured to an end of the arm 58. A spring 106 attached to plate 96 urges the first winding key 78 and the plate 96 in the direction indicated by the arrow 94 so as to keep them at the inoperative position as shown in FIG. 1.

When the first winding key 78 is at this inoperative position, the hook portion 102 of the plate 96 pulls the pin 104 on the arm 58 so that the idler wheel 54 is kept apart from the reel roller 46 as shown in FIG. I.

The second winding key 80 is coupled to the second winding means in a'manner that willbe explained herein. Second winding key 80 is secured to a front end of a plate 108 which is slidably mounted on the chassis 12 by a guide pin I and a pin 112 secured to the end 74 of the lever 64. A spring 114 attached to plate 108 urges the second winding key 80 and the plate 108 in the direction indicated by the arrow 94 so as to keep them at the inoperative position as shown in FIG. 1. When the second winding key 80 is in this inoperative position, the plate 108 drives the pin 112 and swings the lever 64 clockwise so that the belt 70 around the pulley 68 is kept apart from the flywheel 18 as seen in FIG. I.

A stop key 82 is secured to a front end of the plate 1 16 which is slidably mounted on the chassis 12 by

guide pins

118 and 120. A spring 122 attached to plate I 16 urges the stop key 82 and the plate 116 in the direction indicated by the arrow 94 so as to keep them at the inoperative position as shown in FIG. I.

These keys of the operating means are locked at their operative position by holding means which will be explained in detail hereinafter. The holding means includes a first holding device I24 for holding the play key 76, and a second holding device I26 for holding the first and second winding keys.

First holding device 124 is slidably mounted on the chassis 12 by

guide pins

128 and 130, and is biased by a spring 132 in the direction of an arrow 134. First holding device 124 has a pin 136 secured thereto, which is capable of engaging with a projection 138 formed on the plate 84. Device 124 also has a pin 140 secured thereto, which is capable of engaging with a sloped sidewall 142 of the plate 116. Second holding device I26 is slidably mounted on the chassis 12 by

guide pins

130 and 144 and is biased by a spring 146 in the direction of the arrow I34. Holding device 126 has a pin 148 secured thereto, which is capable of engaging with a projection 150 formed on the plate 90. Device 126 also has a pin 152 secured thereto, which is capable of engaging with a projection 154 formed on the plate 108.

When an operator pushes the play key 76 in the opposite direction of the arrow 94, the play key 76 is locked at its operative position by the first holding device 124 in such a way that a stepped portion of the projection 138 of the plate 84 is locked by the pin 136 on the first holding device 124 as shown in FIG. 2. This allows the arm 26 to swing counterclockwise under the biasing force of spring 30 so that the pressure roller 24 is pressed against the capstan I6. The capstan 16 moves the tape.38 in the direction of the arrow 44 at the tape playing speed in cooperation with the pressure roller 24.

The first winding key 78 is locked at its operative position by the second holding device 126 in such a way that a stepped portion of the projection 150 of the plate 96 is locked by the pin 48 on the second holding device 126 as shown in FIG. 3.

Since the hook portion I02-of the plate 96 moves away from the pin 104 on the arm 58, the idler wheel 54 is pressed against 4 both the flywheel l8 and the reel roller 46 by the spring 62. At the same time, a pin 156 secured to the plate 96drives counterclockwise a lever 158 which is pivotally mounted on a shaft 160 secured to the chassis 12. Consequently, a pin I62 atfixed to an end of the lever I58 swings the arm 26 clockwise slightly so that the pressure roller 24 is separated by a short distance from the capstan 16.

The transducing head 32 shifts slightly from the pad 34 and occupies a second position as shown in FIG. 3, while still maintaining pressing engagement with the tape 38. This shift of the head 32 reduces the pressure between the head 32 and the pad 34.

This decreases the necessary torque for rotation of the reel roller 46 which is driving the tape 38 to wind'the tape on the takeup reel 42. Thus, the tape 38 moves in the direction of the arrow 44 at a higher speed than the tape playing speed.

When the operator pushes the second winding key in the opposite direction of the arrow 94 from the playing state of the tape recorder in FIG. 2, the second winding key 80 is locked at its operative position by the second holding device 126 in such a way that a stepped position of the projection 154 of the plate 108 is locked by the pin 152 on the second holding device 126 as shown in FIG. 4. The lever 64 swings counterclockwise under the biasing force of the spring 72 upon mc'iv'ev ment of the plate 108 in the opposite direction of the arrow 94 so that the belt 70 around the pulley 68 is brought into engagement with the flywheel 18. At the same time, a pin I64 I secured to the plate 108 drives the lever I58 counterclockwise so that the pin 162 swings the arm 26 clockwise slightly. Accordingly, the pressure roller 24 .is separated at a short distance from the capstan 16. The head 32 is also displaced slightly from the pad 34 and occupies the second position as shown in FIG. 4. Thus, the tape 38 moves in the opposite direction of the arrow 44 at a higher speed than the tape playing speed.

The keys will be restored to their inoperative position when the operator pushes the stop key' 82 in the opposite direction of the arrow 94. The sloped portion 142 of the plate I16 drives the pin to move the first holding device 124 in the opposite direction of the arrow 134 in FIG. 3. The plate 84 is released from locking engagement with the pin 136 so that the play key 76 is moved in the direction of the arrow 94 by the spring 92 to return to its inoperative position. Upon above movement of the first holding device 124, a pin 168 on the device 124 drives the second holding device 126 in the same direction. The plate 96 is released from locking engagement with the pin 148 so that the first winding key 78 is moved in the direction of the arrow 94 by the spring 106 to return to its inoperative position. The second winding key 80 is also restored to its inoperative position in the same manner described above, under the biasing force of spring 114.

The first winding key 78 and the second winding key 80 can also be pushed even when the tape recorder is in the inoperative position shown in FIG. 1. In this case, the transducing head 32 does not engage with the tape 38, since the play key 76 has not been pushed. On the other hand, the tape 38 is wound on the takeup reel 46 or the supply reel 50 by the winding means in the same manner as described above.

First winding key 78 and second winding key 80 are also restored to their inoperative position automatically by releasing means in cooperation with driving means which will be explained in detail hereinafter. Driving means in this embodiment is an actuating device which consists of a plurality of actuating elements 170 secured to the flywheel 18.

Construction of releasing means in this embodiment is as follows. A releasing device I72 is pivotally mounted on the shaft 28 and has an end portion 174 thereof capable of actuating a bent portion 176 of the second holding device 126. A

lever [78 is pivotally mounted on a shaft I80 secured to the other end of releasing device 172 and has a stepped portion 182 formed at one end thereof.

Lever 178 is biased counterclockwise by a spring 184 to shift the stepped portion 182 out of the rotation locus of the actuating elements 170 so that the stepped portion 182 is not contacted by one of the actuating elements 170. An electromagnet 186 is positioned in the vicinity of the other end 186 of the lever 178. Since lever 178 is made of magnetic material, such as steel, in this embodiment, the lever 178 is caused to swing clockwise upon energization of the electromagnet 186.

With reference to FIG. 5, electric circuits used in this tape recorder will be explained.

An electric amplifier 190 is connected to the transducing head 32 to amplify signals which are reproduced from the tape 38 by head 32. The tape 38 has a plurality of signal bands 192 prerecorded thereon as shown in FIG. 6. Each signal band 192 can be for instance, one tune of music. A pause portion 194 in an appropriate length exists between adjacent signal bands 192.

A detecting circuit 196 is connected to amplifier 190 through a switch 198 remove the signals from the amplifier 190 as shown in FIG. 5. Switch 198 on the chassis 12 (in FIG. 1), is brought into a closed state upon counterclockwise motion of the lever 158. Therefore, the detecting circuit will not be brought into its operative state unless the first winding key 78 or the second winding key 80 is pushed. An out put signal of the detecting circuit 196 is supplied to the electromagnet 186. When one of said pause portions 194 on the tape 38 comes to a position corresponding to the head 32, the detecting circuit 196 detects this change of signal level so as to energize the electromagnet 186.

It is possible to use a tape on which a special control signal, such as 60 Hz sine wave, is recorded at the pause position. However, in this case, the detecting circuit should be replaced by a detecting circuit which can detect said control signal through a filter circuit.

The operator can hear the signal, such as music, on the tape, when he pushes the play key 76 as shown in FIG. 2. If the operator wants to skip a signal of a certain signal band, he can hear the next signal band from its beginning by only one operation of the first winding key 78.

When one pushes the first winding key 78 at the playing state of the tape recorder as shown in FIG. 3, the first winding means is brought to its operative state as described above. Then, the tape 38 moves in the direction of the arrow 38 at a higher speed than the tape-playing speed. The head 32 picks up the signal on the tape according to the movement of the tape, since the head 32 engages with the tape 38 at its second position. When the pause portion between the signal band which has been reproduced and the following signal band comes to the position corresponding to the head 32, the detecting circuit 196 detects such pause portion and energizes the electromagnet 186. Upon this energization, the electromagnet 186 pulls the end 188 of the lever 178 so as to swing lever 178 clockwise as shown by the dot-dash lines in FIG. 3. The stepped portion 182 of the lever 178 is contacted by one of the actuating elements 170 upon rotation of the flywheel 18. Consequently, the releasing'device 172 swings counterclockwise so that the end portion 174 of device 172 drives the bent portion 178 of the second holding device 126 in the opposite direction of the arrow 134. The first winding key 78 returns to its inoperative position when the projection 150 of the plate 96 is released from the pin 148. Accordingly, the first winding means is brought into its inoperative state. At the same time, the arm 26 swings counterclockwise by the spring 30 to press the pressure roller 24 against the capstan 16, since the play key 76 has remained in its operative position. Then, the tape 38 moves at the tape-playing speed, and the following signal band is reproduced by the head 32 from its beginning.

If the operator wants to hear a certain signal band repeatedly, he can hear such signal band from its beginning by only one operation of the second winding key 80.

When one pushes the second winding key 80 while the tape recorder is playing as shown in FIG. 4, the second winding means is brought to its operative state as described above.

Then, the tape 38 moves in the opposite direction of the arrow 44 at a higher speed than the tape-playing speed. When the pause portion in front of the beginning of the signal band which has been reproduced comes to the position corresponding to the head 32, the detecting circuit 196 detects such pause portion and energizes the electromagnet 186. Upon this energization, the electromagnet 186 pulls the end 188 of the lever 178 so as to swing lever 178 clockwise as shown by the dot-dash lines in FIG. 4. The stepped portion 182 of the lever 178 is contacted by one of the actuating elements 170. This causes the releasing device 172 to drive the second holding device 126 in the opposite direction of the arrow 134. The second winding key returns to its inoperative position, and the second winding means is brought into its inoperative state. At the same time, the arm 26 swings counterclockwise by the force of spring 30 to press the pressure roller 24 against the capstan 16, since the play key 76 has remained in its operative position. Then the tape 38 moves at the tape playing speed in the direction of the arrow 44, and the same signal band is re peatedly reproduced by the head 32 from its beginning.

In the above embodiment, the play key 76 is used in order to bring the tape recorder into its playing state. However, it is not always necessary to provide such play key, especially in a tape recorder for automobile use, which is recently available in the market. Such a tape recorder uses a tape cartridge so that the tape recorder is brought into its playing state automatically when the tape cartridge is inserted into a slot of the tape recorder.

Further, a single transducing head in the above embodiment is used not only for reproduction of signal bands but for detection of a pause portion on the tape. However, it will be readily possible to use two heads, one for reproduction of signal bands and the other for detection of pause portions.

It will be apparent to those skilled in the art that various modifications may be made without departing from the spirit of the invention. The above described specific examples are intended merely to illustrate various facets in certain selective embodiments of the invention;

What is claimed is:

1. A tape recorder comprising: a tape-moving means for moving a tape at a tape-playing speed; winding means for moving said tape at a higher speed than said tape-playing speed; operating means for bringing said winding means into its operative state; holding means for holding said operating means at an operative position; a transducing head for reproducing signals recorded on said tape according to movement of the tape; an electric amplifier connected to said head; a detecting circuit coupled to said amplifier to detect a pause portion between signal bands on said tape; an electromagnet responsive to said pause portion detected by said detecting circuit while said tape is being moved by said winding means; driving means driven by a motor; and releasing means for releasing said operating means from said holding means upon engagement of said driving means with said releasing means so that said winding means is brought into its inoperative state when said releasing means is actuated by said electromagnet upon detection of said pause portion on said tape.

2. The tape recorder defined in claim 1, wherein said wind ing means comprises a first winding means for moving the tape in a first direction and a second winding means for moving the tape in a second direction, said first and second winding means being brought into their operative states by said operating means, respectively.

3. The tape recorder defined in claim 1, wherein said transducing head is adapted to be engageable with said tape both at its first position while said tape-moving means is moving said tape at said tape-playing speed and at its second position while said winding means is moving said tape at a higher speed than said tape-playing speed, whereby a displacement of the head from its first position to its second position reduces a pressure between the head and the tape.

4. The tape recorder defined in claim 1, wherein said driving means includes an actuating device which is mounted on a rotating body driven by said motor and which drives said releasing means when said releasing means is actuated by said electromagnet upon detection of said pause portion on said tape.

5. The tape recorder defined in claim 4, wherein said actuating device is composed of a plurality of actuating elements mounted on a flywheel driven by said motor.

6. The tape recorder defined in claim 4, wherein said actuating device is mounted on a flywheel which has a capstan for moving said tape at said tape-playing speed in cooperation with a pressure roller.

7. The tape recorder defined in claim 1, wherein said operating means is also adapted to bring said tape-moving means into its operative state, whereby said tape-moving means is also brought into its operative state when said winding means is brought into its inoperative state by said releasing means.

8. The tape recorder defined in claim 7, wherein said holding means includes a first holding device for holding said operating means to bring said tape moving means into its operating state, and a second holding device for holding said operating means to bring said winding means into its operative state, said second holding device being driven by said releasing means upon detection of said pause portion on a said tape so that said winding means is brought into its inoperative state.

9. The tape recorder defined in claim 8, wherein said operating means includes a play key adapted to be latched by said first holding device to bring said tape-moving means into its operative state, a winding key adapted to be latched by said second holding device to bring said winding means into its operative state, and a stop key for releasing manually said play key and said winding key from their operative positions.

10. A tape recorder comprising: a tape-moving means for moving a tape at a tape-playing speed; winding means for moving said tape at a higher speed than said tape-playing speed; operating means which includes a play key for bringing said tape-moving means into its operative state, and a winding key for bringing said winding means into its operative state;

holding means which includes a first holding device for latching said play key at its operative position, and a second holding device for latching said winding key at its operative position while said play key is being latched by said first holding device; a transducing head for reproducing signals recorded on said tape according to movement of the tape; an electric amplifier connected to said head; a detecting circuit coupled to said amplifier to detect a pause portion between signal bands on said tape; an electromagnet responsive to said pause position detected by said detecting circuit while said tape is being moved by said winding means; and releasing means for releasing said winding key from said second holding device upon energization of said electromagnet so that said winding means is brought into its inoperative state, whereby said play key remains in its operative position so as to bring said tape-moving means into its operative state according to a return motion of said winding key to its inoperative position.

* III I l

Claims

2. The tape recorder defined in claim 1, wherein said winding means comprises a first winding means for moving the tape in a first direction and a second winding means for moving the tape in a second direction, said first and second winding means being brought into their operative states by said operating means, respectively.

10. A tape recorder comprising: a tape-moving means for moving a tape at a tape-playing speed; winding means for moving said tape at a higher speed than said tape-playing speed; operating means which includes a play key for bringing said tape-moving means into its operative state, and a winding key for bringing said winding means into its operative state; holding means which includes a first holding device for latching said play key at its operative position, and a second holding device for latching said winding key at its operative position while said play key is being latched by said first holding device; a transducing head for reproducing signals recorded on said tape according to movement of the tape; an electric amplifier connected to said head; a detecting circuit coupled to said amplifier to detect a pause portion between signal bands on said tape; an electromagnet responsive to said pause position detected by said detecting circuit while said tape is being moved by said winding means; and releasing means for releasing said winding key from said second holding device upon energization of said electromagnet so that said winding means is brought into its inoperative state, whereby said play key remains in its operative position so as to bring said tape-moving means into its operative state according to a return motion of said winding key to its inoperative position.