JPS6059649B2 - Operation mechanism in recording/playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating mechanism in a recording/reproducing apparatus.

Conventionally, when you want to immediately play back audio recorded by a tape recorder, you first cancel the recording mode by pressing the stop button, then set the rewind mode to rewind the tape, and the tape is rewound to a predetermined position. When this happens, the player must press the stop button again to cancel the rewind mode, and then press the play button to enter the playback mode, which makes the operation very cumbersome.

What they came up with was a one-touch review tape recorder.

When this tape recorder presses the rewind button in the record mode, only the record button is released and the playback button remains locked, thereby immediately switching from the record mode to the review mode, and in this review mode. The tape is rewound when the rewind button is released, and immediately after the rewind button is released, the playback mode is set and the rewound tape is played back. However, in conventional one-touch review type tape recorders, the forward movement position of the recording operation member is locked through a lock plate, which has the disadvantage of making the structure extremely complex and making the device larger. Ta.

The present invention was made in view of these problems, and its purpose is to be able to directly lock the recording operation member without using a lock plate, and thereby to enable review mode with a very simplified mechanism. The object of the present invention is to provide an operating mechanism for a recording/reproducing device that can be obtained.

An embodiment in which the present invention is applied to a cassette tape recorder will be described below with reference to the drawings.

The cassette used in this tape recorder is a Philips type compact cassette. As shown in Figure 1, this tape recorder has an outer casing shaped like a flat rectangular parallelepiped, with a stop button 1 and a playback button 2 on one side.
, a rewind button 3 and a fast forward button 4 are provided.

Further, a recording button 5 is provided on the other side adjacent to this one side. Among these operation buttons, only the stop button 1 is formed in a flat shape, and the other operation buttons 2, 3, 4, and 5 are formed in a cylindrical shape. Further, a cassette mounting section 7 for mounting a cassette 6 is formed on the top surface of this tape recorder, and this cassette mounting section 7 is covered with an openable/closable lid.

Further, a large number of small holes 9 are formed in the side of the cassette mounting portion 7, and a speaker 10 is disposed inside the small holes 9. Next, the internal structure of this tape recorder will be explained with reference to Figures 2 and 3.
A motor 11 is disposed in the upper right part of the figure.

A motor pulley 12 is fixed to the output shaft of this motor 11. A pulley that is fixed to the motor pulley 12 and capstan 13 and also serves as a flywheel! A belt 15 is stretched between Jl4 and Jl4. Furthermore, this belt 1
A guide pulley 1 river 6 is disposed in the running route of the belt 15, thereby regulating the running route of the belt 15.
A small pulley 17 is fixed to the capstan 13, and a belt 20 is stretched between this pulley 17 and a pulley 19 fixed to a drive wheel 18.

This drive wheel 18 constitutes a friction wheel, and a foreground idler 2 is disposed so as to be able to press against the outer circumference of this drive wheel 18.
It is designed to transmit rotational force to 1. The idler 21 is rotatably supported by a pin 23 implanted in the idler support lever 22. A long hole 24 is formed in this idler support lever 22, and this long hole 24 is fitted with a pin 26 implanted in a head substrate 25. A notch 27 is formed in this idler support lever 22, and a pin 28 implanted in the head substrate 25 is received in this notch 27. Further, a coil spring 29 is stretched between the pin 26 and the lower end of the idler support lever 22 in FIG. A pinch roller 30 is supported on the head substrate 25 that supports the idler support lever 22. That is, the pinch roller 30 is rotatably supported by a pin 32 attached to a pinch roller lever 31, and this pinch roller lever 31 is rotatably supported by the head base plate 25 by a pin 33. There is. Furthermore, the pinch roller lever 31 is urged to rotate counterclockwise in FIG. 2 about the pin 33 by a coiled spring 34 wound around the pin 33. Head board 25
Further, a recording/reproducing head 35 is fixedly attached to the recording/reproducing head 35.

Further, the erasing head 36 is rotatably supported via a pin 39 by a lever 38 which is rotatably supported around a pin 37 implanted in the head substrate 25 . Note that the lever 38 has a coiled spring 40 centered around the pin 37.
It is urged to rotate clockwise in FIG. 2 by. Further, a pair of openings 41 and 42 are formed in the head substrate 25, and these openings 41 and 42 allow cassette positioning pins 44 and 45 implanted in the mechanical substrate 43 (see FIG. 22) to be attached to the head. It passes through the substrate 25.

Further, another opening 46 is formed in this head substrate 25, and this opening 46 allows the capstan to
3 passes through the head substrate 25. Also, head board 2
A pair of elongated holes 47 and 48 are formed in 5, and guide pins 49 and 50 implanted in the mechanical board 43 are fitted into these elongated holes 47 and 48, respectively. The substrate 25 is supported so as to be slidable in the vertical direction in FIG. 2. In addition, the head board 25 is a mechanical board 43.
It is slidably supported on a step portion 43a having approximately the same height as the thickness of the head substrate 25, which is formed by bending the head substrate 25 (
For this reason, the loss in thickness of the tape recorder due to the head substrate 25 is absorbed, thereby making the tape recorder thinner.

A supply-side reel shaft 51 and a take-up-side reel shaft 52 are arranged on both sides of the drive wheel 18, respectively.

These reel shafts 51 and 52 are for respectively engaging a pair of reels in the cassette 6 and driving these reels. The reel shafts 51 and 52 are fixed to support shafts 53 and 54, respectively, which are rotatably supported by bearings provided on the mechanical board 43. Support shaft 53
A gear 55 is fixed to the gear 55, and this gear 56 meshes with an intermediate gear 56.

Another intermediate gear 57 is fixed to this intermediate gear 56. The intermediate gear 57 is configured to mesh with a gear 61 rotatably supported via a pin 60 by a gear support lever 59 rotatably supported by a pin 58 . A gear 62 is fixed to this gear 61, and this gear 62 is a gear 6 fixed to the drive wheel 18.
It is now possible to mesh with 3. On the other hand, the gear 6 is attached to the support shaft 54.
4 is fixed to the gear 62, and this gear 64 is configured to mesh with a gear 65 fixed to the gear 62.

Further, a friction ring 66 is fixed to the support shaft 54, and this friction ring 66 is configured to be able to come into contact with the foreground idler 21. Next, the recording slider 70 disposed below the motor 11 in FIG. 2 will be described. The recording button 5 is fixed to one end of the slider 70.

Also, a pair of long holes 67 and 68 are formed in this recording slider 70, and these long holes 67 and 68 are fitted into pins 69 and 71 implanted in the mechanical board 43, respectively. The slider 70 is supported so as to be slidable left and right in FIG. An opening 72 is formed near the other end of the recording slider 70.
The bent piece 7 of the accidental erasure prevention claw detection lever 74 is placed on the stepped portion 73 of 2.
5 is engaged.

The accidental erasure prevention lever 74 is connected to the mechanical board 43 by a pin 76.
The pin 7 is rotatably supported by a coil spring 77.
It is urged to rotate counterclockwise in FIG. 2 about 6. Further, a detection end 78 for detecting an erroneous erasure prevention claw of the cassette 6 is connected to one end of the lever 74.
The pressing portion 79 at the tip of the recording slider 70 is connected to a bent piece 81 formed at one end of the erasing head control lever 80.
It is in contact with. The control lever 80 is rotatably supported by the mechanical board 43 by a pin 82, and the other end constitutes a pressing portion 83 that presses the pin 39 of the erasing head 36. Also, the recording slider 70 has a lock pin 84.
has been planted. An arm 85 is implanted on the head substrate 25 in correspondence with the pin 84, and the pin 84 is locked by a locking portion 86 at the tip of the arm 85. Also this record slider 7
A pressing pin 87 is attached to 0. An operating lever 90 is disposed below the recording slider 70 so as to overlap with the recording slider 70 .

This lever 90 is rotatably supported by the mechanical board 43 by the pin 71. This lever 90 is formed with an inclined pressed portion 89 and faces the pressing pin 87 of the recording slider 70 . Also this lever 9
0 is connected to a lock lever 92 by a pin 91. The lock lever 92 is formed with an inclined pressing portion 93′ and a U-shaped locked portion 94, respectively.

Further, a long hole 95 is formed in this lock lever 92, and a pin 96 implanted in an arm 85 connected to the head substrate 25 passes through this long hole 95. Further, a coil spring 97 is stretched between this pin 96 and the tip of the operating lever 90. Further, a regeneration slider 100 is connected to the operating lever 90 via a pin 98.

The playback button 2 is fixed to the lower end of the slider 100 in FIG. Further, this slider 100 is formed with a long hole 99, into which a pin 101 implanted in the mechanical board 43 is fitted, and the regeneration button 2 is inserted into a sliding hole formed in the cabinet. 102, thereby allowing the slider 100 to
In the figure, it is supported so that it can slide up and down. A fast forward saw rewind switching slider 103 is disposed above the recording slider 70 so as to overlap this slider 70.

This slider 103 is formed with a long hole 104 and a notch 105. The pin 69 is fitted into the long hole 104, and the pin 71 is fitted into the notch 105, whereby the slider 103 is supported so as to be slidable left and right in FIG. A pin 106 is embedded in this slider 103. This pin 106 engages with a notch 108 formed in one end of the conversion lever 107. Note that the conversion lever 107 is rotatably supported by the mechanical board 43 by a pin 109. A notch 110 formed at the other end of this lever 107 receives the pin 60. Also, this switching slider 1
Another pin 111 installed in 03 is the arcuate lever 1
The slider 103 and the lever 112 are connected by engaging with a long hole 113 formed approximately in the center of the slider 103 .

Further, this slider 103 is urged to slide to the left in FIG. 2 by a coiled spring 114. Arc-shaped lever 11
One end of the slider 2 is connected to one end of a fast-forward slider 115 by a pin 116. This slider 115 has a long hole 1.
17 is formed, and a pin 118 is fitted into this elongated hole 117, and a fast forward button 4 fixed to the tip of this slider 115 is slidably supported in a sliding hole 119 of the cabinet. Therefore, the slider 115 is supported so as to be slidable up and down in FIG. An opening 120 is formed in the slider 115, and an inclined part 121 and a lock part 122 are connected to the peripheral edge of the opening 120. The other end of the arcuate lever 112 is connected to a rewinding slider 124 via a pin 123.

This slider 124 has a long hole 125 formed therein.
The pin 101 formed on the mechanical board 43 is fitted into this elongated hole 125 . Also this slider 124
The rewind button 3 fixed to the tip of the rewind button 3 is slidably supported in a sliding hole 127 of the cabinet, and the slider 124 is supported so as to be slidable in the vertical direction in FIG. Further, an opening 128 is formed in the slider 124, and an inclined portion 129 and a lock portion 130 are connected to the peripheral edge of the opening 128. Also, the fast forward slider 1
15 and this rewinding slider 124 are respectively connected with pressing arms 131 and 132 that extend to face each other.

The tips of these pressing arms 131 and 132 face the pressed pin 134 of the head substrate return lever 133. This lever 133 is rotatably supported by a pin 135, and a pressing portion 136 connected to this lever 133 is implanted in an arm 35 connected to the head base plate 25. The pin 96 is configured to be pressed. Next, the lock slider 137 for locking the lock lever 92, the fast forward slider 115, and the rewind slider 124 will be described.
are formed, and pins 140 and 141 implanted in the mechanical board 43 are fitted into these elongated holes 138 and 139, respectively, thereby causing the lock slider 137 to slide left and right in FIG. Possibly supported.

A coil spring 142 is wound around the pin 140, thereby urging the slider 137 to slide to the left in FIG. This slider 137 has three lock parts 1.
43, 144, 145 are formed by bending, and these lock portions 143, 144, 145 are respectively the locked portion 94 of the lock lever 92, the lock portion 130 of the rewind slider 124, and the lock portion 122 of the fast forward slider 115. It is configured so that it can be engaged with. Further, a pressed pin 146 is attached to this lock slider 137, and this pin 146 is attached to the inclined portion 1 of the stop slider 147.
It is facing 48.

The stop slider 147 is formed with a long hole 150 that engages with the pin 149, and the stop button 1 fixed to the slider 147 is inserted into the sliding hole 15 of the cabinet.
1, whereby the stop slider 147 is supported so as to be slidable up and down in FIG. This slider 147 is urged to slide downward in FIG. 2 by a rod spring 152. Further, a pair of coil springs 153 and 154 are arranged near the bar spring 152, respectively. These coil springs 153, 15
The coil spring 153 of the coil spring 153 slides and urges the rewind slider 124 and the reproduction slider 100 in the backward direction, and the coil spring 154 urges the reproduction slider 100 and the fast forward slider 115 in the backward direction. Sliding bias is applied.
Further, the stop slider 147 has a sliding recess 155.
is formed (see FIG. 20), and a press slider 156 is slidably held within this recess 155.

The tip of the slider 156 is in contact with a cam portion 157 of the head substrate 25 and a cam portion 159 of the high-speed feed detection slider 158. The high-speed feed detection slider 158 is slidably supported by the pin 50 and the pin 160 similarly to the arm 85 of the head substrate 25. Further, an arm 161 is connected to the detection slider 158, and this arm 161 is attached to a pin 161 provided on the rewind slider 124 and the fast forward slider 115, respectively.
2 and 163. The detection slider 158 is also urged to slide downward in FIG. 2 by a coiled spring 164. Further, a pressing projection 165 is formed on the pressing slider 156, and this projection 165 is configured to press a pressed portion 167 of the eject operating lever 166.

Note that the eject operating lever 166 is rotatably supported by a pin 168. Further, the pressing slider 156 is pressed by a coiled spring 169 in a direction in which it comes into contact with the cam portions 157 and 159. Next, the operation of this tape recorder with the above configuration will be explained.

First, the operation in the reproduction mode will be explained with reference to FIGS. 4 and 5.

This playback mode is achieved by pressing the playback button 2 in the stop mode shown in FIG. That is, when the playback button 2 is pressed, the playback slider 100 moves into the sliding hole 1.
02 and the pin 101 and moves upward in FIG. Then, the operating lever 90, which is connected to the slider 100 via the pin 98, rotates clockwise about the pin 71. As a result, the lock lever 9 is connected to the operating lever 90 via the pin 91.
2 moves upward in FIG. 4, and this lock lever 9
The lock slider 1 was in contact with the upper end of the inclined portion 93 of 2.
The lock portion 143 of 37 relatively enters into the lock portion 94, thereby locking the lock lever 92. Therefore, the reproduction slider 100 is locked by the lock lever 92 via the operating lever 90 in its forward position. Further, by the forward rotation of the operating lever 90, the coil spring 97 that is locked at the tip of the lever 90 is activated by the pin 9 that is implanted in the head substrate 25.
6 to move the head substrate 25 upward in FIG. 4 using the pins 49 and 50 as guides, thereby moving the head substrate 25 to the forward position shown in FIG.

Then, the pinch roller 30 supported by the head substrate 25 via the pinch roller lever 31 presses the magnetic tape in the cassette 6 onto the capstan 13. Since the capstan 13 is rotationally driven by the motor 11 via the motor pulley 12, belt 15, and pulley 14, the magnetic tape runs at the same surface speed as the surface speed of the capstan 13. Then, the running magnetic tape comes into contact with the recording/reproducing head 35 on the head substrate 25 in the forward position, and the signals recorded on the magnetic tape are reproduced.

Note that the erasing head 36 is prevented from moving forward by the erasing head control lever 80, and therefore does not come into contact with the magnetic tape.
Further, as the head substrate 25 moves forward, the front idler 21 supported by the substrate 25 via the idler support lever 22 also moves forward and comes into contact with the drive wheel 18 and the friction wheel 66.

Therefore, as shown in FIG. 6, the reel shaft 52 is connected to the pulley 17, belt 20, pulley 19,
The traveling magnetic tape is wound up by the reel that is driven through the drive wheel 18, the front idler 21, the friction wheel 66, and the support shaft 54 and engages with the reel shaft 52. Next, the operation of the recording mode will be explained with reference to FIGS. 7 and 8.

When the recording button 5 is pressed in the stop mode shown in FIG. 2, the recording slider 70 is guided by the pins 69 and 71 and moves to the left as shown in FIG. Then, the recording/reproducing changeover switch 170 is pressed by the protruding piece 171 of the slider 70 and is switched to the recording state. Also, the tip of the recording slider 70 presses the bending piece 81 and the control lever 8
0 is rotated counterclockwise about the pin 82 in FIG. 7 against the coil spring 172, and the pressing portion 83 of this lever 80 is separated from the pin 39 that supports the erasing head. If the accidental erasure prevention claw of the bookmark set 6 is broken off, this is detected by the detection end 78 of the detection lever 74, and this detection end 78 is inserted into the cassette 6 by the detection lever 78. 74 is rotated counterclockwise in FIG. 7 by a coil spring 77, and the bent piece 75 of this lever 74
engages with the stepped portion 73 of the opening 72 of the recording slider 70 to prevent the recording slider 70 from moving forward.

Therefore, in this case, switching to recording mode will be blocked. Now, as the recording slider 70 moves forward, the pressing pin 87 of the slider 70 presses the pressed portion 89 of the operating lever 90, causing the lever 90 to rotate clockwise in FIG. 7 about the pin 71. In order to
As in the case of the reproduction mode, the lock lever 92 is locked by the lock slider 137, and the head substrate 25 moves forward. Therefore, the magnetic tape in the cassette 6 is erased by the erasing head 36 on the head substrate 25 in the forward position.
and travels while being pressed against the capstan 13 by a pinch roller 30 while facing the recording/reproducing head 35;
Also, the reel shaft 52 rotates as the idler 21 moves forward.
A predetermined record is made on this magnetic tape by being wound by a reel that engages with the magnetic tape. become.

Next, the operation of the fast forward remote will be explained with reference to FIGS. 9 and 10.

When the fast forward button 4 is pressed in the stop mode shown in FIG. 2, the fast forward slider 115 is guided by the sliding hole 119 and pin 118 and moves upward as shown in FIG.
Then, the target portion 122 of the slider 115 engages with the lock portion 145 of the lock slider 137 and is locked. Furthermore, since the tip of the fast-forwarding slider 115 is connected to the arc-shaped lever 112 via the pin 116, the forward movement of the slider 115 causes the lever 112 to be planted on the rewinding slider 124 in the backward movement position. It rotates counterclockwise in FIG. 9 about the pin 123 located there.

Then, the pin 1 that engages with the elongated hole 113 of this lever 112
The switching slider 103 on which the number 11 is installed moves to the left in FIG. For this purpose, the pin 106 of the slider 103 rotates the conversion lever 107 counterclockwise in FIG. 9 about the pin 109.

Then, the pin 60 that engages with the notch 110 of the lever 107 is pushed, and the gear support lever 59 rotates clockwise in FIG. 9 about the pin 58. For this purpose, the gear 65 supported by this lever 59 meshes with the gear 64, and the gear 62 meshes with the gear 63. Therefore, the rotation of the drive wheel 18, to which rotational force is transmitted from the capstan 13 through the belt 20, is caused by the rotation of the gear 6 as shown in FIG.
3. The signal is transmitted to the reel shaft 52 through the gears 62, 65, and 64, and the reel shaft 52 moves in the forward direction (
counterclockwise).

Therefore, the magnetic tape is wound at high speed by the reel that engages with the reel shaft 52. Next, the operation in the rewind mode will be explained with reference to FIG.

When the rewind button 3 is pressed in the stop mode shown in FIG. 2, the rewind slider 124 is guided by the sliding hole 127 and the pin 101 and moves upward as shown in FIG. In the forward movement position, the lock portion 130 of the slider 124 engages with the lock portion 144 of the lock slider 137, and the slider 124 is locked. And this slider 1
24, this slider 124 and pin 123
The lever 112, which is connected through the
Rotate clockwise in Figure 2.

Then, the switching slider 103, which is engaged with this lever 112 via the pin 111, moves to the right in FIG. Therefore, the pin 106 on the slider 103 causes the conversion lever 107 to rotate clockwise around the pin 109, which pushes the pin 60 and rotates the gear support lever 59 counterclockwise around the pin 58. rotate in the direction.

Therefore, the gear 62 supported by the lever 59 meshes with the gear 63, and the gear 62 supported by the lever 59 also meshes with the gear 63.
1 meshes with the intermediate gear 57. Therefore, as shown in FIG. 13, the rotation of the drive wheel 18 is caused by gears 63, 62, 61,
The information is transmitted to the reel shaft 51 via the intermediate gear 57, the intermediate gear 56, and the gear 55, and the reel on the payout side that is engaged with the reel shaft 51 rotates at high speed in the opposite direction (clockwise) to rotate the magnetic tape. It will be rewound to this reel.
Next, the queue mode will be explained with reference to Fig. 14.
This cue mode is brought out by pressing the fast forward button 4 in the playback mode shown in FIG.

That is, when the fast forward button 4 is pressed in the playback mode, the fast forward slider 115 moves upward as shown in FIG.
Rotate counterclockwise around 5. Then, the pressing portion 136 of this lever 133 pushes the pin 96 connected to the head substrate 25, causing the head substrate 25 to retreat.
Therefore, the pinch roller 30 supported on the head substrate 25 via the lever 31 is separated from the capstan 13, and the idler support lever 2 is also attached to the head substrate 25.
The idler 21 , which is supported via the friction ring 66 , is spaced apart from the friction ring 66 . For this reason, the constant speed running of the magnetic tape is interrupted. However, as the fast-forward slider 115 moves forward, the arc-shaped lever 112
rotates counterclockwise around the pin 123, the switching slider 103 moves to the left, and the conversion lever 107 rotates counterclockwise around the pin 109.
The gear support lever 59 rotates clockwise about the pin 58 so that the gear 65 meshes with the gear 64 and the gear 62 meshes with the gear 63. For this reason, the reel shaft 52 rotates at high speed, and the magnetic tape is fed at high speed. In this cue mode, as shown in FIG. 15, the locked portion 94 of the lock lever 92 and the lock portion 143 of the lock slider 137 are engaged, and therefore the lock slider 137 is As shown, it has moved by L to the right.

Therefore, a gap of L2 exists between the lock portion 145 of the lock slider 137 and the lock portion 122 of the fast-forward slider 115, and for this reason, the fast-forward slider 115 is not locked by the lock slider 137, and when the fast-forward button 4 is released. Then, the fast-forward slider 115 is moved back by the coil spring 154 and switched to the reproduction mode again. Next, the review mode will be explained. This review mode is achieved by pressing the rewind button 3 in the playback mode as shown by the phantom line in FIG.

That is, when the rewind button 3 is pressed, the rewind slider 124 moves forward, and the arm 132 of this slider 124 rotates the head substrate return lever 133 to move the head substrate 25 backward. Further, the forward movement of the rewinding slider 124 moves the switching lever 103 to the right via the arc-shaped lever 112, thereby moving the gear support lever 59 counterclockwise about the pin 58 via the conversion lever 107. direction. As a result, the reel shaft 51 is driven to rotate in the same manner as in the rewind mode, and the magnetic tape is rewound at high speed. In addition, even in this review mode, the 15th
As shown in the figure, the rewind slider 124 is not locked by the lock slider 137, and by releasing the pressure on the rewind button 3, the tape recorder can be switched to the playback mode again.

Next, the operation of one-touch review will be explained with reference to FIG.

This one-touch review operation is achieved by pressing the rewind button 3 in the recording mode shown in FIG.
That is, when the rewind button 3 is pressed in the recording mode, the rewind slider 124 moves forward, and the arm 132 of this slider 124 rotates the head substrate return lever 133 around the pin 135 to move the head substrate 25 through the pin 96. to retreat. For this reason, the pinch roller 30 separates from the capstan 13 and the forward idler 21 separates from the friction wheel 66, as in the case of the review mode, and the constant speed running of the magnetic tape is interrupted. Further, when the head board 25 is retreated, the lock portion 86 of the arm 85 of the head board 25
As a result, the recording slider 70, which has been locked via the pin 84, is unlocked, and the slider 70 is moved back via the control lever 80 by the coil spring 172.

For this reason, the protruding piece 171 is separated from the changeover switch 170, and the recording/reproducing circuit is switched from the recording state to the reproducing state. Further, as the rewinding slider 124 moves forward, the switching slider 103 moves to the right via the arc-shaped lever 112, and the gear support lever 59 is switched, and the rotation of the drive wheel 18 is transmitted to the reel shaft 51. The magnetic tape is rewound at high speed.

Moreover, at this time, the lock lever 92 is locked by the lock slider 137, so the rewind slider 124 is not locked, and when the rewind button 3 is released, the tape recorder switches to the playback mode. It will be done.

Further, when the fast forward button 4 is pressed in the recording mode, a one-touch cue operation is performed as shown by the imaginary line in FIG.

That is, when the fast forward button 4 is pressed in the recording mode, the head substrate 25 retreats, the recording slider 70 is unlocked, and the switching slider 103 switches the reel shaft 52 at high speed to rotate the magnetic tape. is sent at high speed. When the user releases the fast-forward button 4, the mode is switched to playback mode. Next, the operation of switching from the playback mode to the stop mode will be explained with reference to FIGS. 17 and 18.

When the stop button 1 is pressed in the reproduction mode, the stop slider 147 is guided by the sliding hole 151 and the pin 149 and moves upward in FIG. 17. Then, the inclined portion 148 of this slider 147 becomes the stop slider 137.
The pressed pin 146 is pressed to slide the slider 137 to the right in FIG. Then, the lock portion 143 of the slider 137 is disengaged from the locked portion 94 of the lock lever 92, and the lock lever 92 is unlocked. For this purpose, the regeneration slider 100 connected to this lever 92 via the operating lever 90 is connected to the coil spring 153.
, 154, thereby entering the stop mode. Note that switching from the fast forward remote and rewind modes to the stop mode is also achieved by pressing the stop button 1 in the same manner.

That is, when the stop button 1 is pressed, the lock slider 137 moves to the right in FIG. 17, as shown by the imaginary line in FIG.
The fast-forward slider 115 and rewind slider 124, which were locked by 44, are moved back by coil springs 154 and 153, respectively, and are switched to the stop mode. Next, the ejecting operation of the cassette 6 of this tape recorder will be explained with reference to FIGS. 19 to 24.

The tape recorder is configured to eject the cassette 6 by pressing the stop button 1. This eject operation is configured to be performed only when the stop button 1 is pressed in the stop mode. That is, for example, as shown in FIG.
In the playback mode, the head substrate 25 is in the forward position, and the cam portion 157 of the head substrate 25 presses the tip of the pressure slider 156 to move the slider 156 into the sliding recess 155 of the stop slider 147 so that the coil spring 1
69 and moved to the right. Therefore, in this state, the protrusion 165 of the pressing slider 156 does not face the pressed portion 167 of the eject operating lever 166.
Even if the stop button 1 is pressed, the pressure slider 15 held in the sliding recess 155 of the stop slider 147
6 without pressing the eject operating lever 156,
For this reason, the cassette 6 is not ejected. As already mentioned, at this time, the reproduction mode is switched to the stop mode as the stop button 1 is pressed. Also, in the fast forward remote or rewind mode, the pin 163 or pin 162 of the fast forward slider 115 or the rewind slider 124 is pressing the arm 161 of the fast forward detection slider 158, so that the cam of the slider 158 is pressed at this time. Part 1
59 presses the pressure slider 156 to the right.

Therefore, even in the fast forward remote or rewind mode, the protrusion 165 of the pressure slider 156 does not face the pressed portion 167 of the eject operating lever 166, and even if the stop button 1 is pressed, the mode is simply switched to the stop mode. ,
No eject operation is performed. However, in the stop mode, as shown in FIGS. 21 and 22,
Both the head substrate 25 and the detection slider 158 have moved backward, so the cam portions 157 and 159 do not press the tip of the pressure slider 156.

Therefore, the pressure slider 156 is moved to the left within the sliding recess 155 of the stop slider 147 by the coil spring 169, and the protrusion 165 of the pressure slider 156
is opposed to the pressed portion 167 of the eject actuation lever 166. Therefore, in this state, that is, in the stop mode, when the stop button 1 is further pressed, the press slider 156 moves upward together with the stop slider 147 as shown in FIGS. 23 and 24. , the pressing protrusion 1 of this slider 156
65 presses the pressed portion 167 of the eject operating lever 166.

For this purpose, the actuating lever 166 is rotated clockwise in FIG. 24 about the pin 168, thereby ejecting the cassette 6, and the cassette 6 is ejected from the tape recorder. Although the present invention has been described above with reference to Examples, the present invention is not limited to the above-mentioned Examples, and various modifications can be made based on the technical idea of the present invention.

For example, in the embodiments described above, the present invention is applied to a tape recorder, but the present invention can also be applied to recording/reproducing apparatuses other than tape recorders.

As described above, according to the present invention, the locking means for the recording operation member is simplified and the number of parts is reduced. Therefore, according to the present invention, the review mode can be obtained with a very simple mechanism, and the device can be made smaller.

[Brief explanation of drawings]

The drawings show an embodiment in which the present invention is applied to a cassette-type tape recorder, in which Fig. 1 is an external perspective view of this tape recorder, and Fig. 2 is a plan view of the internal mechanism of this tape recorder in stop mode. , Fig. 3 is a perspective view of the rotary drive system, Fig. 4 is a plan view in playback mode, and Fig. 5 is a perspective view of the rotary drive system.
The figure is a perspective view of the same, FIG. 6 is a sectional view taken along the line ■ to ■ in FIG. 4, FIG. 7 is a plan view in recording mode, FIG. 8 is a perspective view of the same, and FIG. FIG. 10 is a perspective view of the same, FIG. 11 is a sectional view taken along line M to ■ in FIG. 9,
Fig. 12 is a plan view in rewind mode, Fig. 13 is a sectional view taken along the line Figure 16 is a plan view showing the operation of one-touch review, Figure 17 is an enlarged plan view of main parts showing the operation of switching from playback mode to stop mode, Figure 18 is a perspective view of the same, and Figure 19 is playback. FIG. 20 is an exploded perspective view of the ejector operation section in stop mode. FIG. 22 is an enlarged plan view of the ejector operation section in stop mode. 23 is an enlarged plan view of the main part of the eject operation section showing the eject operation;
FIG. 24 is a sectional view taken along the line XX■-XX■ in FIG. 23. Note that in the symbols used in the drawings, 25 is a head substrate, 70 is a recording slider (recording operation member), and 8 is a recording slider (recording operation member).
5 is an arm (head board), 86 is a lock part, 92 is a lock lever (operating member), 100 is a playback slider (playback operation member), 124 is a rewind slider (rewind operation member), 137 is a lock slider (lock board).

Claims (1)

[Claims] 1. A playback operation member 100 and a rewind operation member 1 in which respective operation units 2 and 3 are arranged on the first side surface of the outer casing.
24, a recording operation member 70 whose operation section 5 is disposed on a second side surface of the outer casing that is substantially perpendicular to the first side surface; and a head substrate 25 arranged so as to be reciprocally movable so as to move backward in a second direction opposite to the direction, and by moving the playback operation member 100 forward in the first direction. The actuating lever 90 is rotated, and the actuating member 92 is advanced by the rotation of the actuating lever 90, and the head substrate 25 is moved forward.
is advanced in the first direction via the spring 97, and at this time, the playback mode is obtained by locking the actuating member 92 in its forward position with the lock plate 137, and the recording operation member 70 The actuating lever 90 is rotated by moving the actuating lever 90 forward in the first direction, and the actuating member 92 is moved forward by the rotation of the actuating lever 90, and the head base plate 25 is moved against the spring 97. At this time, the locking plate 137 locks the operating member 92 in the forward position, and the locking portion 86 provided on the head substrate 25 allows the recording operation to be performed. A recording mode is obtained by locking the member 70 in its forward position, and in this recording mode, the head substrate 25 is moved in the second direction by moving the rewinding operation member 124 forward. As the head substrate 25 is moved back slightly, the lock portion 8 is moved back.
6. An operating mechanism in a recording/reproducing apparatus, characterized in that the recording operating member 70 according to No. 6 is unlocked to obtain a review mode.