JPS5951058B2 - magnetic recording and reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for transferring magnetic tape stored in a reel-to-reel cassette through an opening provided at the front end of the cassette.
The present invention relates to a magnetic recording and reproducing device capable of recording or reproducing audio signals, etc. by pulling the cassette out of the cassette and bringing it into contact with a magnetic head provided outside the cassette.

An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 1, 1 is a board of the apparatus, and 2 is a cassette.

The cassette 2 is mounted at a predetermined position on the substrate 1 by fitting reference pins 3, 3' implanted in the substrate 1 into holes 2a, 2b provided in the cassette 2. 4 and 4' are reel hubs housed in the cassette 2, on which a magnetic tape 5 is wound.

The magnetic tape 5 is stretched along the open front end portion provided on the cassette 2. The front end of the cassette 2 is provided with notches 6, 6' extending over its upper and lower surfaces. Further, the front part of the cassette 2 is provided with rotatable lids 7, 7' for covering the front ends of the openings of the notches 6, 6', and these lids 7, 7' are always spring-loaded. When desired, the shafts 7a and 7a' are closed, respectively, as shown by the dashed lines.
It is possible to open against the biasing force of the spring using the spring as a fulcrum. A head board 8 is attached to a head board mounting rod 95 implanted in the board 1 with screws at a position facing the front end of the cassette 2 of the board 1. head 10, recording head 11,
A reproducing head 12 is attached to each head, and tape guide rods 79 and 79' are attached to the upstream and downstream sides of each of the heads, respectively, with respect to the running of the magnetic tape 5. A button holder 14 is provided on the substrate 1, and operation buttons such as a play button 15, a pause button 16, and a record button 17 are rotatably provided on a button shaft 14a of the button holder 14. 22 is a stop button.

Reference numeral 127 is a fast forward or rewind operating lever, and 19 is a loading/unloading knob. Details of these operations will be described later.

When the force set 2 is installed, a pinch roller 20 is inserted into the notch 6', and a tension detection roller 21 is provided in the notch 6. Reference numeral 13 denotes a capstan serving as a rotating shaft of a capstan motor 166.

Fig. 2 is a top view showing the arrangement of the mechanism parts with the force set 2, head block and push button removed. Only the main parts will be explained here, and details will be given in the explanation of each mode later. I will explain later.

Reference numerals 23 and 23' designate reel stands, which have the same configuration, and as shown in FIG. A main rotating body 26 supported by the main rotating body 26 is provided, and an upper stopper 27 and a lower stopper 28 are press-fitted into the upper and lower ends of the main rotating body 26.

A claw 2 is provided around the upper stopper 27 so as to be slidable in the vertical direction.
9 is provided, and the inner circumference of this pawl 29 and the main rotating body 26
The fitting part is fitted with a hexagonal hole, and the claw 29 is connected to the main rotating body 26.
It is designed to rotate in unison with the Also, nail 29
A spring 30 is interposed between the main rotating body 26 and the claw 2.
9 is always urged upward by a spring 30. A driving wheel 31 is mounted below the main rotating body 26 . The driving wheel 31 is rotatably supported, and a felt 32 is attached to the upper surface of the driving wheel 31. A compression spring 33 is interposed between the drive wheel 31 and the lower stopper 28, and the rotational force transmitted from the idler 34 to the drive wheel 31 is transferred to the main rotation by the frictional force of the felt 32. It is configured to be transmitted to the rolling body 26. 35 is a cap for preventing the reel stand from coming off the reel shaft 25.

As shown in FIG. 2, reference numerals 36 and 36' are brake arms, which are rotatable about support shafts 37 and 37' implanted in the base plate 1, respectively.
A brake shoe 38, 38' is provided in a part of the brake shaft 1, respectively.

Furthermore, a tension spring 39 is tensioned between the brake arms 36 and 36' and is biased to rotate so as to pull the brake arms 36 and 36' together. As a result, the brake shoes 38, 38' are brought into pressure contact with the drive wheels 31 of the reel stands 23, 23' by the elastic force of the tension springs 39, respectively, so that the reel stands 23, 23' are braked. From the position of the reel stands 23, 23' and the positional relationship of the brake support shafts 37, 37', for the reel stand, the rotation direction of the arrows A and A' is the direction of brake bite, and the arrows A and A' are different from each other. For rotation in the opposite direction, J is configured to be in the brake release direction.
The reference pins 3 and 3' have the same structure, and one of them 3, as shown in FIG. 12, is composed of a reference shaft portion 40 made of metal and a force set receiving portion 41 made of synthetic resin. The lower end of the reference shaft part 40 is screwed or caulked to a predetermined part of the board 1, and the force set receiving part 41 is fitted and fixed to the upper part of the shaft part 40, and the cassette 2 is inserted into the tip thereof. It has a tapered part 42 to make it easier to use, and a flange part 43 at the bottom to determine the height of the force set 2. Next, the detailed configuration and operation of this device will be explained for each operation mode.

First, a description will be given of the tape loading operation for obtaining a standby state in which the magnetic tape 5 stored in the force set 2 is pulled out of the force set 2 after the force set 2 is attached to enable playback or recording operations. Do the following.

After installing force set 2, as shown by the solid line in Figure 1,
Manually rotate the loading knob 19 in the direction of the arrow in FIG.

A loading cam 44 is integrally provided with the loading knob 19, and the loading cam 44 rotates about a shaft 45 supported on the front plate of the base plate 1 as the loading knob 19 rotates. Let's do it. The loading cam 44 is provided with a grooved cam 46 that is part of a spiral, and a cam follower 48 rotatably supported by an operation lock plate 47 is fitted into the grooved cam 46. By rotating the loading cam 44 in the direction of the arrow, the cam follower 48 moves along the outer edge 49 of the grooved cam 46 by the stroke l of the grooved cam 46 in the direction of the shaft 45. That is, the operation lock plate 47 moves by a stroke l in the direction of arrow C. As shown in FIGS. 2 and 6, the operation lock plate 47 is provided so as to be able to slide on the board 1 in the direction of arrow C and in the opposite direction with reference to guide shafts 50 and 51 implanted in the board 1. A portion thereof has an engaging pin 53 that is engaged with a loading lever 52. The loading lever 52 is rotatably provided on the base plate 1 with a shaft 54 as a fulcrum, and as the operation lock plate 47 moves in the direction of the arrow C,
Rotation is performed from the state shown in FIG. 2 to the state shown in FIG. 6, that is, in the direction of arrow H. A pin 55 is provided at the tip of the opening lever 52, and the pin 55 is engaged with an elongated hole 57 of a sector ring 56. The fan-shaped ring 56 is the reference pin 3
The loading lever 52 is rotatable about the reference shaft 40 as a fulcrum, and by rotating the loading lever 52 in the direction of the arrow H, the state shown in FIG. 2 is changed to the state shown in FIG. 6, that is, in the counterclockwise direction. Rotate to . Furthermore, the reference shaft portion 40 has an idler arm 58.
The idler arm 58 is fitted with the elongated hole 58a, and the idler arm 58 is configured to be rotatable about its shaft portion 40 as a fulcrum and slidable in the two directions shown by the arrows in FIG.

A tension spring 59 is stretched between one end of the idler arm 58 and the loading lever 52, and a loading idler 60 is connected to the shaft 5 at the other end of the idler arm 58.
It is rotatably supported by 8b. The loading idler 60 is connected to the loading knob 1 by a tension spring 59.
It is energized in nine directions and is always in rolling contact with the circumferential surface 61 of the fan-shaped ring 56, and is configured to rotate as the fan-shaped ring 56 rotates. The idler arm 58 is also biased in the direction of the arrow by a tension spring 59 and is brought into contact with a pin 62 installed on the loading lever 52, so that the loading idler 60 is normally attached to the reel stand 23. It is in a state where it is separated from the drive wheel 31 of ''.

Then, when the loading lever 52 starts rotating in the direction of arrow H in FIG.
The idler arm 58, whose position was regulated by the second pin 62, rotates in the direction of the arrow due to the tension of the tension spring 59, and the loading idler 60 moves to the reel stand while being in rolling contact with the fan-shaped ring 56. 23''. When the loading lever 52 rotates in the direction of the arrow H, the fan-shaped wheel 56 rotates in the opposite direction to the arrow, and the idler 60
rotates clockwise and attempts to transmit rotational force in the direction of arrow A'' to the reel stand 23''. However, reel stand 2
The direction of rotation indicated by arrow A'' at 3'' is the direction of biting into the brake shoe 38'', and the reel stand 23'' is strongly braked, and the direction of rotation of the fan-shaped ring 58 is the direction of biting into the brake shoe 38''.
Since it is in the escape direction, the idler 60 idles while sliding on the circumferential side 61 of the fan-shaped ring 56 without rotating the reel stand 23''. Toward the end, the convex portion 63 provided on the fan-shaped ring 56 comes into contact with the idler arm 58 and rotates it in the opposite direction to the arrow, separating the loading idler 60 from the reel stand 23'', It stops in the state shown in FIG.

Further, the pin 62 of the loading lever 52 is engaged with a long hole 64a provided in the pinch roller arm drive rod 64.

The other end of the pinch roller arm drive rod 64 is connected to a pinch roller drive pin 66 embedded in a part of a pinch roller arm 65 which is rotatably supported by a shaft 68 embedded in the substrate 1. . Further, a tension spring 67 is stretched between the pin 62 and the pinch roller drive pin 66 to obtain a pressing force for the pinch roller 20. Figure 2,
As shown in FIG. 6, when the loading lever 52 is rotated in the direction of the arrow H, the tension spring 67 is extended by the pin 62, and thereby the pinch roller arm 65 is rotated counterclockwise, and at the same time the pinch roller arm 65 is rotated counterclockwise. The roller arm drive road 64 moves to the left.

The rotation of the pinch roller arm 65 is controlled by its drive pin 6.
6 is engaged with a stopper portion 113 of a stop lever 84, which will be described later, and the pinch roller 20 is stopped in the vicinity of the capstan 13, resulting in the state shown in FIG. A pinch roller shaft 69 is implanted at one end of the pinch roller arm 65, and the pinch roller 20 is rotatably supported on this pinch roller shaft 69. A lid opening/closing claw 70 is integrally provided at the tip. As the pinch roller arm 65 rotates counterclockwise, the lid opening/closing pawl 70 comes into contact with the lid 7'' of the force set 2 and opens the lid 7'' to the position shown by the two-dot chain line in FIG. On the other hand, a pin 71 is implanted at the other end of the pinch roller arm 65, and this pin 71 is engaged with one end of a tension means mounting arm 72. The tension means mounting arm 72 is rotatably provided around a shaft 73 implanted in the substrate 1, and is normally biased to rotate in the downward direction of the arrow by a spring (not shown).
1 prevents its rotation. The tension means mounting arm 72 is rotated by the spring force from the state shown in FIG. 2 to the state shown in FIG. 6, that is, in the downward direction of the arrow, because the pin 71 escapes as the pinch roller arm 65 rotates counterclockwise. It is configured to perform actions. This rotation of the tension means mounting arm 72 in the downward direction of the arrow is caused by a stopper pin 74 on a tension release lever 138, which will be described later.
It stops when it comes into contact with. A lid opening/closing claw 75 is provided at one end of the tension means mounting arm 72.
By rotating the tension means mounting arm 72 in the downward direction of the arrow, the lid opening/closing pawl 75 comes into contact with the lid 7 of the force set 2 and opens it to the position shown by the two-dot chain line in FIG. Furthermore, a tension arm 76 is rotatably mounted on the tension means mounting arm 72 between the shaft 73 and the lid opening/closing pawl 75 by a support shaft 77. A shaft 78 is installed at one end of the tension arm 76, and the tension detection roller 2 is attached to the shaft 78.
1 is rotatably supported. Furthermore, the tension arm 76 has a felt pad 80 for applying back tension to the magnetic tape 5 when the magnetic tape 5 is pressed against the tape guide rod 79 and the tape runs during recording and playback.
is installed. In the direction of rotation of the tension means mounting arm 72 in the downward direction of the arrow, the outer peripheral surface of the tension detection roller 21 is located forward of the end surface of the felt pad 80. Further, a spring hook 81 is provided at the other end of the tension arm 76, and the spring between this spring hook 81 and the tension means mounting arm 72 is connected to each other. A tension spring 82 that biases the tension arm 76 clockwise in order to generate a pressing force of the felt pad 80 is stretched between the felt pad 72a and the felt pad 72a. Further, as shown in FIG. 2, the spring hook 81 is in contact with a stopper 83 provided on the tension means/attachment arm 72 before tape loading, so that the tension spring 82 of the tension arm 76 is in contact with the stopper 83. The auxiliary rotation has been stopped. The above is the configuration of the tape loading mechanism, and a series of tape loading and unloading operations will now be explained based on this configuration. By rotating the loading knob 19 in the loading direction (in the direction of the arrow in FIG. 7) from the stopped state in FIG. 2, the operation lock plate 47 moves in the direction of arrow C and the loading lever 52 rotates in the direction of arrow H. do. Along with that,
The idler 60 makes contact with the reel stand 23', but since the reel stand 23' is brake-braked, rotation J is not performed, and further, due to the rotation of the loading lever 52, the idler 60 moves into the reel stand 23'. 23' and is stopped in the separated state. On the other hand, loading lever 52
As the pinch roller arm 65 rotates counterclockwise, the lid 7' of the force set 2 is opened by the lid opening/closing claw 70 of the pinch roller arm 65, and at the same time, the force set 2 is opened. The magnetic tape 5 is pulled out to a predetermined position by the pinch roller 20 located in the notch 6' of No. 2. At this time, although the reel stand 23' is braked, the magnetic tape is pulled out by rotating the main rotating body 26 against the frictional force of the pressure contact portion of the felt 32 shown in FIG. The pinch roller arm 65 is connected to the pinch roller drive pin 6 when the pinch roller 20 rotates to the front of the capstan 13.
6 is the stopper part 113 of the stop lever 84 in FIG.
Rotation stops when it comes into contact with. Further, as the pinch roller arm 65 rotates, the tension means mounting arm is rotated in the downward direction of the arrow, and the lid 7 of the force set 2 is opened by the lid opening/closing claw 75, and the tension detection roller 2
1 comes into contact with the magnetic tape 5, the magnetic tape 5 is pulled out of the force set 2 against the frictional force of the felt 32 of the reel stand 23', and the tension means mounting arm 7
The magnetic tape 5 comes into contact with the tape guide rod 79 at the final rotation position of 2, and then the felt pad 80 comes into contact with the magnetic tape 5, and the felt pad 80 presses the magnetic tape 5 against the tape guide rod 79. . As a result, the pulled-out magnetic tape 5 is securely brought into contact with each of the heads 9 to 12, and becomes ready for recording or reproduction. The above is the tape loading operation, in which the magnetic tape is moved from the state shown by the solid line to the state shown by the two-dot chain line in FIG.
is pulled out.

Next, the tape unloading operation is performed by rotating the loading knob 19 in the direction opposite to the direction of the arrow in FIG. 7 from the state in which the tape is loaded. That is, by rotating the loading knob 19 in the direction opposite to the direction indicated by the arrow, the pinch roller 20, tension detection roller 2], etc. are again accommodated in the notches 6, 6'' of the force set 2, and the lids 7, 7'' are opened. Closes due to the return force of the spring. In this unloading operation, the magnetic tape 5 pulled out from the output set 2 during the loading operation is wound up by the reel stand 23''.

Therefore, this operation will be explained next. That is, during unloading, the loading lever 52 is rotated in the direction opposite to the arrow H in FIG. 2, and the sector ring 56 is also rotated in the opposite direction to the arrow H in FIG.

As a result, the loading idler 60 comes into rolling contact with the sector ring 56 and the reel stand 23'', and the loading idler 60 rotates counterclockwise, and this rotation is in a biting state with respect to the reel stands 2 and 3''. reel stand 2
Transmit rotational force in the direction opposite to arrow A'' to 3''. This rotation of the reel stand 23'' in the opposite direction to the arrow A'' is a direction of escape for the brake shoe 38'', so the reel stand 23'' rotates by a predetermined amount in the direction opposite to the arrow A''. Then, the magnetic tape 5 that has been drawn out from the force set 2 is wound onto the reel hub 4'', the magnetic tape 5 is wound onto the reel hub 4'', and the magnetic tape 5 is completely stored inside the force set 2. In this case, the amount of rotation of the reel stand 23'' in the direction opposite to arrow A'' by the loading idler 60 is greater than the amount of rotation required to substantially completely store the magnetic tape 5 that has been pulled out. The difference between the preset rotation amount of the reel stand 23'' and the rotation amount for actually storing the magnetic tape 5 is determined by the loading idler 60 and the drive wheel 31 of the reel stand 23''. or between the driving wheel 3] and the main rotary body 26. Furthermore, during loading, the outer edge 49 of the loading cam 44 is absorbed by the cam follower 48. The cam follower 48 was moved by the stroke l, but during unloading, the inner edge 49'' of the loading cam 44 came into contact with the cam follower 48 and moved the cam follower 48 by a stroke l.
is returned by a stroke l. Reference numeral 115 shown in FIG. 7 is a detent roller that is pressed against the outer circumferential surface of the loading cam 44 by spring bias (the structure is omitted), and when the loading cam 44 is rotated, the detent groove 115 provided on the outer circumferential surface or] 16'' to position and hold the loading cam 44 before and after loading. Next, the reproducing operation will be explained.

As shown in FIG. 4, a metal drive round rod 85 is integrally attached to a play button 15 made of synthetic resin that is rotatable about a button shaft 14a supported by a button holder 14 as a fulcrum.

(Note that the recording button and the pause button have the same structure.) By pressing the play button 15 in the direction of the arrow C, the drive round bar 85 rotates in the direction of the arrow. A tension spring 87 for returning the play button is stretched between a part of the play button 15 and the button holder 14, and the play button 15 is pressed against this spring 87.

As shown in FIG. 2, in the state before tape loading, the drive round rod 85 of the play button 15 is fitted into the horizontal hole 47a1 of the L-shaped hole 47a formed in the operation lock plate 47. Since the driving rod 85 cannot be moved in the direction of the arrow, the play button 15 cannot be pressed.

In other words, the configuration is such that playback operations cannot be performed in the state before tape loading.On the other hand,
The same goes for the recording button 17, whose drive round rod 86 is fitted into the L-shaped hole 47b of the operation lock plate 47, as shown in FIG. It is also impossible to operate.
When tape loading is performed and the operation lock plate 47 moves in the direction of the arrow C as shown in FIG. It is movable and can be used for both playback and recording operations.

After loading the tape, by pressing the play button 15, the drive rod 85 moves forward as shown in FIG. 9, and the button is locked by the rotor protrusion 90 of the button lock plate 89. The button lock plate 89 is attached to the button holder 14.
Using the guide hole (not shown) provided in the 9th
A tension spring 92 is movable back and forth in the arrow direction shown in the figure, and is stretched between the tension spring 92 and the button holder 14.
It is urged to slide in the direction of arrow R, and its biased movement is prevented by driving round rods 85, 86 and the like. As the drive round rod 85 moves in the direction indicated by the arrow, the main rod 93, one end of which is engaged, connects to the guide pin 94 implanted in the board 1 and the elongated hole 93a in the head board mounting rod 95.
, 93b are guided and slid in the direction of the arrow. At the other end of the main rod 93 are brake arms 36, 36.
A protrusion 96 is provided that abuts a part of the .

As the main rod 93 moves forward, the protrusion 96 rotates the brake arm 36' clockwise against the tension spring 39, and the brake arm 36' counterclockwise.
The brake shoes 38, 38' are separated from the reel stands 23, 23'. Further, the idler 34 is rotatably supported on a shaft 97 implanted in an idler arm 98, and this idler arm 98 is mounted on an arm 100 rotatably supported on a shaft 99 implanted in the base plate 1. axis 10
It is rotatably supported around 1 as a fulcrum. A tension spring 102 is stretched between the idler arm 98 and the spring-loaded portion of the board 1, and the idler 34 is always biased in the direction of arrow O.

A bent protrusion 103 is provided on a part of the arm 100, and this bent protrusion 103 is engaged with a hole 104 formed at the tip of the main rod 93, thereby causing the main rod 93 to move as shown in FIG. When in the stop position, the idler 34 is moved in the opposite direction of the arrow so that the shaft 97 comes into contact with the top of the triangular hole 91 of the base plate 1, and the idler 34 is moved in the direction opposite to the direction of the arrow. One motor tap. 105 and the reel stands 23, 23'. When the play button 15 is operated and the main rod 93 is moved in the direction of the arrow R, the brake shoes 38, 38' are moved to the reel stand 3 as described above.
2, 32', the idler arm 98 is released, so that the idler 34 is brought into contact with both the motor pulley 105 and the drive wheel 31 of the reel stand 23' by the tension spring 102. .

Power is supplied to the reel motor 106 by turning on a switch (not shown) by moving the main rod 93 in the direction of the arrow.
Therefore, the motor motor 105 of the reel motor 106 rotates clockwise, and this rotates from the idler 34 to the reel stand 23.
', this reel stand 23' is rotated in the direction opposite to arrow A, and the capstan 13 and pinch roller 20 are rotated.
The magnetic tape 5 fed out is wound up.

Furthermore, the driving round rod 85 passes through the board 1 and is connected to a play rod 107 (see FIG. 10) disposed on the back side of the board 1.
Therefore, when the play button 15 is operated, the play rod 107 is slid in the direction indicated by the arrow using the guide shafts 114, 114' embedded in the base plate 1 as guides. . As shown in FIG. 3, the stop lever 84 is rotatably supported by a shaft 108 embedded in the base plate 1, and has a square hole 109 in which a play rod is inserted. 1
The protrusion 110 of 07 is engaged.

Furthermore, a tension spring 111 is stretched between one end of the top lever 84 and the spring-loaded portion of the board 1, and the stop lever 84 is biased to rotate clockwise. Its rotation is prevented by abutting against a stopper 112. Furthermore, a stopper portion 113 is provided in a part of the stop lever 84, and is adapted to restrict the rotational position of the pinch roller drive pin 66 of the pinch roller arm 65, which is shown by a chain line in FIG.

In FIG. 3, the position of the pinch roller drive pin 66 before tape loading is shown in position (a), and as the tape loading is performed and the pinch roller arm 65 rotates, the pinch roller drive pin 66 moves to ( b) When the pinch roller drive pin 66 reaches the position b), the pinch roller drive pin 66 comes into contact with the stopper 113, and the rotation of the pinch roller arm 65 is stopped. Thereafter, as shown in FIG. 10, when the stop lever 84 with the protrusion 110 is rotated counterclockwise against the tension spring 111 due to the movement of the play rod 107 in the direction of the arrow, the pinch roller drive pin 66 is rotated. The pinch roller 20 comes into contact with the capstan 13 for further rotation by the tension spring 67, and like the reel motor 106, the capstan motor 166 is switched on by the advancement of the main rod, and power is supplied to the capstan motor 166. Since the capstan 13 is in a rotating state, the magnetic tape 5
is moved to the left with back tension applied by the tape guide rod 79 and felt pad 80. To explain the above-mentioned playback operation in sequence, first, by pressing the play button 15, the drive rod 86 is locked by the glass protrusion 90 of the button lock plate 89, the main rod 93 moves forward, and the reel stand is locked. 23,
Release the brake that was braking 23''.

Furthermore, the idler 34 is connected to the motor pulley 105 and the reel stand 2.
3", and transmits the rotational force of the reel motor 106 to the reel base 23".As the main rod 93 moves forward, the play rod 107 slides, and the stop lever 84 rotates. .

As a result, the pinch roller 20 whose position was regulated in front of the capstan 13 comes into contact with the capstan 13, starts running the magnetic tape 5, and the magnetic tape 5 is wound onto the reel hub 4''. The magnetic tape 5 is first guided from the upstream side by the tension detection roller 21, then by the tape guide rod 79, and after passing through the head group, it is guided by the tape guide rod 79''.

Next, the mechanical parts and their operations related to the pose operation will be explained.

While the tape is running in the above playback condition,
By pressing the pause button 16, the pause rod 117 with the hole 117a engaged with the drive round rod 88 moves in the direction of the arrow, that is, from the state shown in FIG. 2 to the state shown in FIG. 11 against the tension spring 170. do. This pose rod 1
17 moves while its elongated hole 117b is guided by the reference pin 3. A slope cam portion 118 is provided on a part of the pause rod 117, and the slope cam portion 11
8 is engaged with a cam follower 119. The cam follower 119 is attached to one end of the pause cam lever 20, and the pause cam lever 20 is attached to the shaft 1 on the board 1.
It is rotatably supported around 21 as a fulcrum. The other end 122 of the [pause cam lever] 20 is the pinch roller arm 6
It is configured to be able to engage with the pin 71 of No. 5. As the pause rod 117 moves in the direction of the arrow, the cam follower 119 moves on the slope of the slope cam section 118. As a result, the pause cam lever 120 rotates in the direction of the arrow force as shown in FIG. 11, and the other end 122 contacts the pin 71 of the pinch roller arm 65, causing the pinch roller arm 65 to rotate in the direction of the arrow Y. As a result, Capstan 13
The pinch roller 20 that was pressed against the capstan 13
This pinch roller 20 and capstan 13 are separated from each other.
The tape running drive caused by this is stopped. On the other hand, in this state, the idler 34 is in rolling contact with the motor pulley 105 and the reel stand 23'', and the reel stand 23'' attempts to continue winding the tape, but the switch 123 mounted on the board 1 When pausing by moving the pause rod 117, the power of the reel motor 106 is turned off.
Therefore, the rotation of the reel stand 23 is stopped and the magnetic tape 5 is completely stopped. During this pause, the idler 34 is placed in pressure contact with the reel stand 23'', so the reel stand 23'' is braked by the idler 34, preventing unnecessary rotation and preventing the magnetic tape 5 from sagging. Reel stand 2 during the above pose
As a method of blocking the winding force of 3'', a method has been described in which the power source of the reel motor 106 is turned off, but the following configuration may be used as another implementation.

That is, an electric circuit (not shown) is provided to reduce the voltage of the reel motor 106 when the switch 123 detects the movement of the pause rod 117, so that the winding force by the reel stand 23'' can be fully applied during the pause operation. The reel stand 23'' uses a low torque, that is, a smaller winding force than the back tensioner of the magnetic tape 5, without breaking the magnetic tape.
), the magnetic tape 5 is stopped without running during a pause. This has the effect that the magnetic tape 5 can be stopped without causing any slack or the like. In addition, pose rod 117
A bent portion 124 is provided at the tip of the substrate 91 through the elongated hole 1a and protrudes to the back side thereof.
A latch pin 125 is implanted in 24.

As shown in FIG. 12, when the pause button 16 is pressed, the pause cutter 117 moves from the state shown by the solid line to the state shown by the two-dot chain line, so that the latch pin 125 is latched into engagement with the push-on push-off latch plate 126. Ru.
This push-on push-off latch plate 126 is connected to the substrate 1.
It is rotatably provided on an angle 127 provided in the. This push-on push-off latch plate 126 has a configuration widely used in general magnetic tape devices, etc., and a detailed explanation of its configuration and operation will be omitted here. As described above, by pressing the pause button 16, the pinch roller 20 is separated from the capstan 13 and the pause rod 117 is latched, and by pressing the pause button again, the latch is released and the playback state is restored. do.

Therefore, the pause state is maintained even if the user releases the pause button 16. Next, the mechanical parts and their operations related to fast forwarding and rewinding will be explained.

Reference numeral 127 denotes a fast forward/rewind operating lever, which is rotatably provided around a shaft 128 (see FIG. 10) implanted in the substrate 1 as a fulcrum.

When the fast forward/rewind operating lever 127 is rotated to the (R) position, the rewinding state is established, and when it is rotated to the (F) position, the fast forwarding condition is established.
The fast forward/rewind operation lever 127 is provided with a T-shaped groove 129, into which the driving round bar 85 of the play button 15 is fitted. In the stopped state, the drive round bar 85 is located at the central intersection of the T-shaped grooves 129 as shown in FIG. 3, and in the regenerated state, as shown in FIG.
It moves into the vertical groove portion 129a of the character-shaped groove 129. Therefore, in the playback state shown in FIG.
30 or 131 comes into contact with the driving round rod 85, and therefore the playback mode is fast-forwarded from the playback state. rewinding or rewinding operations are no longer possible. As shown in FIG. 3, in the stopped state, the driving round bar 85 does not come into contact with the wall 130 or 131, and the T
Since it is movable within the horizontal groove portion 129b of the character-shaped groove 129, fast forwarding and rewinding operations are possible. Furthermore, by performing fast-forwarding and rewinding operations, the driving round bar 85 is fitted into the horizontal groove 129b of the T-shaped groove 129 as shown in FIG. 13, so even if the play button 15 is pressed in this state, The drive round rod 85 is in contact with the wall 132, so that playback operations are not possible in the fast forward or rewind state. A recess 133 is provided in a part of the fast forward/rewind operation lever 127, and a pin 134 is implanted in the main rod 93 and protrudes to the back side through the long hole 1b of the board 1 and the IC.
Drive edges 136, 137 are provided which are engageable with 135.

Now, in order to perform a rewind operation from the stopped state shown in FIG. 3, by rotating the fast forward/rewind operation lever 127 to the '(R) position, the drive edge 136 is moved to the main rod as shown in FIG. 93, and the main rod 93 moves in the direction of the arrow R. Similarly, when the fast-forward/rewind operation lever 127 is rotated to the (F) position to perform a fast-forward operation, the drive edge 137 comes into contact with the pin 135 and the main rod 93 moves in the direction of the arrow. do. Tension pad release lever 1
38 is provided so as to be rotatable about a shaft 139 implanted in the substrate 1, and a pin 74 implanted in a part of the lever '138 penetrates through the hole 1d of the substrate 1 to the front side. The tension means mounting arm 72 is provided to engage with a portion of the tension means mounting arm 72 which is rotated in the downward direction of the arrow as shown in FIG. The pin 74 in the stopped state is shown in Fig. 3. Fast forward/rewind operation lever 127
On the other hand, the pin 74 in the rewind state is removed from the recess 133 by the rotation of the fast forward/rewind operation lever 127, as shown in FIG. be touched. Also,
In the fast-forward state, the pin 74 similarly comes out of the recess 133 and comes into contact with the edge 127b of the fast-forward/rewind operation lever 127. Therefore, the tension release lever 138 is pressed during either the rewind operation or the fast forward operation.
is rotated in the direction of the arrow. Reference numeral 140 is a holder attached to the substrate 1, and reference numeral 141 is a lock plate that locks the fast forward operation state or the rewind operation state of the fast forward/rewind operation lever 127.

The lock plate 141 is slidable in the direction of the arrow mark with elongated holes guided by the guide shafts 142a and 142b embedded in the holder 140 and the shaft 128, and is always stretched between the lock plate 141 and the play rod 107. tension spring 143
The force is being moved in the direction of the arrow. A hole 141a is provided in a part of the lock plate 141, and a recess E,
f and g are provided. In the stopped state, the lock pin 1 embedded in the fast forward/rewind operating lever 127 is inserted into the recess f.
49 is engaged and its position is maintained, and by performing a rewinding operation, the lock pin 149 is engaged with the recess e and its operating state is maintained, and by further performing a fast forwarding operation, the lock pin 149 is held in the recess. g to maintain its operating state. The fast forward/rewind operation lever 127 held in this manner returns to the stopped state by manually rotating it to the stop position to release each lock. By moving it against the spring 143, the rotor is released and returns to the stopped state. Reference numeral 144 denotes a rewind lever, which is rotatably provided around the shaft 145 of the board 1 as a fulcrum, and has a pin 146 at one end that engages with the inclined edge 127C of the fast forward/rewind operating lever 127. A recess 147 is formed at the other end.

One end edge 147a of the recess 147 is in contact with the shaft 97 of the idler 34 in the stopped state, as shown in FIG. 3, and prevents the idler 34 from moving toward the supply reel stand 23 during playback or fast forwarding. . Furthermore, rewind lever 1
44, the tip is near the recess 147.
A leaf spring 148 located at 7 is attached. 13th
When performing the rewind operation as shown in the figure, the rewind lever 1
44 rotates in the direction of the arrow X in accordance with the rotation of the fast forward/rewind operation lever 127. As the rewinding lever 144 rotates, the leaf spring 48 comes into contact with the shaft 97 of the idler 34, forcing the idler 34 to move toward the reel stand 23 against the tension spring 102. make a transfer contact. On the other hand, a switch (not shown) is provided that is switched by rotating the fast-forward/rewind operating lever 127, and this switch causes the reel motor 106 to move its motor pulley 105 counterclockwise in FIG. 3 during the fast-forward operation. In addition, during a rewinding operation, the motor pulley 05 is configured to rotate clockwise.

Here, fast-forwarding and rewinding operations are possible both in the state before loading the magnetic tape 5, that is, in the state in which the magnetic tape 5 is stored in the force set 2, and in the state in which it is being loaded. Its operation will be explained below. First, before loading the magnetic tape 5, that is, in the state shown in FIG. 2, when the fast forward/rewind operation lever 127 is rotated to the (R) position, the lock pin 149 is engaged and held in the recess e. This rotating operation activates the pin 134, so the main rod 93 moves forward and the brakes on the reel stands 23, 23'' are released.
At the same time, the idler 34 is pressed against the motor pulley 105.

At the same time, the reel motor 106 is driven and the rewinding lever 144 is rotated in the direction of the arrow X as shown in FIG. As shown in the figure, the reel stand 23 is rotated to perform a tape rewinding operation.

Although the pin 74 is actuated during the rewinding operation before tape loading, this has no bearing on the tension means mounting arm 72 since it is in the retracted position.

On the other hand, when the fast-forward/rewind operation lever 127 is rotated to the (F) position to obtain fast-forward operation from the state before tape loading, the lock pin 149 locks into the recessed part G.
Since the lever 127 is engaged and held, even if the lever 127 is released, its operating state is maintained, and this rotation operation causes the pin 1 to
35 is activated, the main rod 93 advances in the same way as during rewinding, releasing the reel racks 23, 23'', and the idler 34 is pressed against the motor rod 105. At the same time, the reel motor 106 The idler 34 is rotated in the opposite direction to that during rewinding, and as the idler 34 moves forward, the idler 34 is pulled by the tension spring 102 and rolls into contact with the reel stand 23''.
'' is rotated to perform tape fast forwarding operation.

Although the pin 74 is actuated during this tape fast-forward operation, this operation has no relation θ as in the case of rewinding.

Next, when rewinding or fast forwarding operations are performed in the tape loading state, the difference from the above-mentioned case in which these operations are performed from the state before tape loading is that the tension means mounting arm is 72 is rotated in the opposite direction to the arrow shown in FIG.
The pressure of the magnetic tape 5 on the tape guide rod 79 by the magnetic tape 5 is released.

That is, the tension means mounting arm 7 is connected by the pin 74.
2 is slightly rotated in the downward direction of the arrow against a spring (not shown) that biases it, so that the felt pad 80, which was pressing the magnetic tape 5 against the tape guide rod 79 during the tape loading operation, retreats. The tape is designed so that there is no problem in fast-forwarding or rewinding the tape.

Furthermore, the fast forwarding or rewinding operation in this tape loading state is performed while the magnetic tape 5 is guided by the rotating body, which rotates as the magnetic tape 5 runs, both of the pinch roller 20 and the tension detection roller 20. Therefore, the running load on the magnetic tape 5 is small, and the tape is stably fed at high speed. Also, in this case, the magnetic tape 5 is connected to each head 9 to
] 2, it is possible to detect the cue signal recorded on the magnetic tape 5 by the cue head 10.
By detecting the queue signal, control such as automatically stopping the magnetic tape 5 can be performed. Although it is not explained specifically here, tape running will be more stable if you change the winding torque of the reel stand during playback and the winding torque of the reel stand during fast forwarding and rewinding. By arranging a switch that detects the state, fast forwarding, and rewinding state, and switching the input voltage of the reel motor 106 to fast forward and to increase during rewinding, the winding torquer in each mode can be set to the most optimal torquer. It is set.

Next, the stop mechanism and its operation will be explained.

First, the stop operation in the playback state will be explained. 1st
It has a mechanism for moving the button lock plate 89 shown in FIG. 2 in the direction of arrow A by pressing the stop button 22 shown in the figure. (Explanation of related mechanisms is omitted) No. 9
As shown in the figure, when the stop button 22 is operated from the state in which the playback state is locked, the button lock plate 89 is pulled by the tension spring 9.
By moving it in the direction of the arrow C against 2, the drive bar 85 is unlocked by the lock protrusion 90, thereby releasing the regeneration state and returning to the stopped state.

Next, the operation of detecting the end of the tape during playback and performing auto-stop will be described.

When the end of the tape is detected, a signal is given to the solenoid 154 attached to the back side of the board 1, and the solenoid 1
54 is now operational. (The method of detecting the terminal end 7 is a known technique and will not be described again.) The pin 154a of the solenoid 154 is engaged with the notch 155a of the solenoid lever 155, and the suction operation of the solenoid 154 causes the solenoid lever The support 155 rotates about a shaft 156 implanted in the substrate 1 as a fulcrum from the position (h) shown in FIG. 9 to the position (1).

A bent portion 157 formed on the solenoid lever 155 projects to the surface through the hole 1d of the base plate 1 and engages with a hook portion 158 of the sliding plate 151. Therefore, as the solenoid lever 155 rotates, the sliding plate 151 rotates about the shaft 59 on the substrate 1 from the position shown by the solid line in FIG. 9 to the position shown by the chain line. Note that this sliding plate 151
Long holes 151a and 151b are provided at both ends of the shaft, and the shaft 159 is fitted into the long holes 151a. A pin 150 is embedded in the button lock plate 89, and this pin 1
50 is engaged with the elongated hole 151b of the sliding plate 151.
Therefore, by the suction operation of the solenoid 154, the button lock plate 89 is moved in the direction of the arrow T via the solenoid lever 155 and the sliding plate 151, thereby automatically stopping the playback state by detecting the end of the tape. It will be done. Next, the stop mechanism related to the pause state will be explained.

As shown in FIG. 2, a square hole 152 formed in the pose rod 117 and a protrusion 153 provided on the sliding plate 151 are engaged with each other, so that the pose rod 117 is
11, the sliding plate 151 follows and moves to the position shown in FIG. In this state shown in Fig. 11, the sliding plate 1
The hook portion 158 of the solenoid lever 155 is disengaged from the bent portion 157 of the solenoid lever 155. Therefore, even if the solenoid 155 performs suction operation in this state, the sliding plate 151 does not rotate and the push button is not locked. No cancellation will take place. However, especially as shown in FIG.
The tip 160 of the solenoid lever 155 can engage with a part of the push-on push-off latch plate 26 for latching in the pause state, and when the solenoid lever 155 is rotated by the suction operation of the solenoid 54. The push-on push-off latch plate 126 is configured to move in the unlatching direction. As a result, when the solenoid 154 is suctioned in the pause state, the latch in the pause state is first released, and the operation mode is returned to the playback or recording state. Thereafter, when the solenoid 154 performs a suction operation, the playback state (recording state) is unlocked and becomes a stop state, as described above in the explanation of the automatic stop of the playback operation. When the stop button 22 is pressed in the pause state, the pin 150 rotates the sliding plate 151 to the chain line position in FIG. The edge 1 of the sliding plate 51 which is not engaged with the hook portion 158 of the plate 151
51c (see Fig. 11) and the solenoid 1
54 is rotated to the (1) position in the same manner as when it is operated, and the pause rod 117 is unlatched. That is, if a stop operation is performed while in the paused state, the paused state is canceled at the same time. Next, the stop operation in fast forward and rewind states will be explained.

To cancel the fast-forward or rewind state, in addition to manually rotating the fast-forward/rewind operating lever 127 to the stop position as described above, the suction operation of the solenoid 154 can also be used during fast-forward or rewind. It is configured to perform an automatic stop.

That is, by operating the fast forward/rewind operation lever 127, the lock pin 149 is locked into the recess e or g of the lock plate 141, and at the same time the tension release lever 138 is moved in the direction of the arrow shown in FIG. It is in a rotated state. A selection lever 161 is connected to a part of the lock plate 141 so as to be rotatable about a shaft 162.
A tension spring 164 is applied between the lever 161
The bent portion] 63 is provided so as to always come into contact with the tip of the tension release lever 138. Therefore, the selection lever 61 is rotated in accordance with the rotation of the tension pad release lever 138, and the tip of the selection lever 61 is connected to the arm 165 of the solenoid lever 155 as shown in FIG.
is brought to a position where it can engage with the tip of the Therefore, when a fast forward or rewind operation is performed, solenoid 1
54 is sucked, the arm 165 comes into contact with the tip of the selection lever 61 and moves the selection lever 61 to the state shown by the chain line in FIG.

As the selection lever 161 moves, the lock plate 14
1 moves in the direction of arrow R, the lock pin 149 is unlocked by the recess e or g, and the fast forward/rewind operation lever 127 is automatically returned to the stop position by the return force of the main rod 93 and the like. Note that the fast-forward or rewind state can be unlocked by rotating the solenoid lever 155, as described above for unlocking during playback, by operating the stop button 22 in the fast-forward or rewind state. In particular, it is possible to stop the fast forward or rewind state.

Next, the recording button 17 and its operational configuration will be described.
The drive round bar 86 of the recording button 17 can engage with the rotor protrusion 167 of the button lock plate 89, and the recording button 1
When 7 is pressed, the drive round rod 86 moves forward and the rotor protrusion 16
7, and therefore its pressed state is locked by the lock protrusion 167.

In this case, a recording/reproducing switch (not shown) is switched in the same manner as in a general device to enable recording, and by pressing the play button 15 at the same time, the magnetic tape 5 is driven and a recording operation is performed. As is clear from the above embodiments, the present invention has a first lock plate that maintains the operating state of the regeneration operating member that performs the reproducing operation, and a second lock plate that maintains the operating state of the high-speed feed operating member that performs high-speed feeding. It is equipped with a locking plate, and the holding state by each of these rotary plates can be easily released with a small release force using a single solenoid. By operating the release lever that releases the high-speed feed operation member to the operation position, the selection lever is moved to a position where it can be engaged with the solenoid lever, so that the high-speed feed operation member is placed in the non-operation position. In certain conditions, the solenoid lever and the second lock plate are unrelated, so the load on the solenoid is small, and a solenoid with low suction force can be used, making it especially suitable for devices powered by batteries. It is.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is a top view of the force set installed state, FIG. 2 is a top view of the same mechanism, and FIG.
4 is a sectional side view of the same, FIG. 5 is a front view showing the head block, FIG. 6 is a top view for explaining the operation of the tape loading mechanism, and FIG. 7 is a loading 8 is a partially sectional side view of the reel stand, FIG. 9 is a top view of the main mechanism during playback operation, and FIG. 10 is a bottom view of the main mechanism during playback operation. FIG. 11 is a top view of the main part of the mechanism during the pause operation, FIG. 12 is a side view of the main part of the pose operation mechanism, and FIG. 13 is a bottom view of the main part of the mechanism in the rewind operation state. 1... Board, 2... Force set, 5...
...magnetic tape, 6,6''...notch, 7,
7″・・・Lid, 8・・・Head board, 13
... Capstan, ]5 ... Play button, 16 ... Pause button, 17 ...
・Record button, 19...Loading knob,
20...Pinch roller, 21...Tension detection roller, 22...Stop button,
23,23″... Reel stand, 34...
Idler, 36,36″・・・Brake arm,
44...Loading cam, 47...
Operation lock plate, 52...Loading lever,
56...Sector ring, 60...Loading idler, 65...Pinch roller arm, 7
0...Lid opening/closing claw, 72...Tension means mounting arm, 93...Main rod, 10
5...Motor rod, 107...Play rod, 117...Pause rod, 120.
...Pause cam lever 126...Push-on push-off latch plate, 127...Fast forward/rewind operation lever 138...Tension pad release lever 141... ...Lock plate, 1
49...Tatsuta pin, 144...Rewind lever, 154...Solenoid, 155...
...Solenoid lever]61...Selection lever.

Claims (1)

[Claims] 1 A first part that maintains at least the operating state of the regeneration operating member.
a second lock plate that maintains the operating state of a high-speed feed operation member for high-speed feed of the magnetic tape; a solenoid; a solenoid lever that operates a plate to release the operating state of the regeneration operating member; a release lever that releases the operating state of the high-speed feed operating member by the second lock plate; and a release lever that is interlocked with the operation of the high-speed feed operating member. a selection lever that is operated to move the release lever to a position where it can be engaged with the solenoid lever when the high-speed feed operation member is operated to the high-speed feed position, and when the regeneration operation member is operated, the first lock When the solenoid is actuated with its operating state held by the plate, the first lock plate is actuated by the solenoid lever to release the operating state of the regeneration operating member, while the high-speed feed operating member is held in the second locking state. When the solenoid is actuated with the operating state held by the second lock plate, the release lever is actuated by the solenoid lever, and the operating state of the high-speed feed operating member by the second lock plate is released. A magnetic recording/reproducing device characterized by: