JPS6019575B2 - Tape recorder drive mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive mechanism for a tape recorder with improved fast-forwarding and rewinding mechanisms, the purpose of which is to selectively abut the supply reel stand and the take-up reel stand. The fast-forwarding unit is controlled by the fast-forwarding arm provided on the fast-forwarding lever,
To provide a drive mechanism for a tape recorder that allows rewinding and fast forwarding to be performed.

Next, embodiments of the present invention will be described with reference to the drawings.

1 is a chassis, 2 is a head stand that moves back and forth guided by a guide pin la and a stopper pin lb (this pin lb also serves to position the cassette) on the chassis, and includes an erasing head 2a and a green reprint head. 2b is attached.

The head stand has two guide elongated holes 2c on the upper and lower sides of the left side into which the pin la is inserted, a guide elongated hole 2c into which the pin lb is inserted in the center, and a stopper elongated hole 2d into which the pin lb is inserted. A lock elongated hole 2e into which an upright piece 7c of the head stand lock plate 7 is inserted is bored on the right side, which will be described later. Further, lc is a pin for positioning the cassette. 3 is a pinch low unit equipped with a pinch roller 3a,
The pinch roller 3a is rotatably supported by a support pin ld provided on the chassis 1, and a spring 3b urges a pinch roller 3a toward a capstan 4a, which will be described later.

Further, the unit 3 is formed with a protrusion 3c that comes into contact with the head stand 2, and an extension piece 3d that comes into contact with a protrusion 20a of a set plate 20, which will be described later. Reference numeral 4 denotes a first flywheel which is supported by a bearing (not shown) formed on the chassis 1 and a presser plate 5 (Fig. 2) attached to the back of the chassis 1, and its rotating shaft is connected to the cap. It is Stan 4a.

Reference numeral 6 denotes a second flywheel which is pivotally supported by a bearing (not shown) formed in the chassis 1, and 7 a second flywheel which is provided with a shield on the back of the chassis and is penetrated by the pin le, and a spring 7a applies an upward spring force to the flywheel. With the head stand locking plate (FIGS. 3 and 4) being biased, the engaging portion 7b is engaged with a long hole lf bored in the chassis, and is rotated about this as a fulcrum.

Also, this head stand lock plate 7 has a long hole 1g in the chassis 1.
A more protruding upright piece 7c is formed and the head stand 2
an engaging claw 7d that is engaged with a lock elongated hole 2e bored in the lock hole 2e;
A protruding piece 7e protruding from the lock elongated hole 2e is formed. Now, in FIG. 4, when the cassette 8 is set, the protruding piece 7e is moved by the cassette 8 to the spring 7
Since it is pushed down against the counterforce of a, the engaging claw 7d
is disengaged from the lock elongated hole 2e of the head stand 2, and the head stand 2 is moved forward by a spring (not shown), that is, to the right in Figs. 3 and 4, and upward in Fig. 1. move in the direction.

Reference numeral 9 denotes a supply reel stand rotatably supported on the chassis, and a gear 9a is formed on the outer periphery.

1. A winding reel table is rotatably supported by a shaft (not shown) mounted on a receiving plate 5, and as shown in FIG. A rubber roller 10b is formed in the rubber roller 10b, and a belt groove 10e in which the belt 12 is wound is formed between the rubber roller 10b and the counter 11 fixed above the chassis 1.

This winding reel stand 10 is attached to a bearing 13 which is rotatably supported by the shaft of the receiving plate 5, and this bearing 13 and the winding reel stand 1
The first arm 14 and the second arm 15 for end detection are connected between the
3 are included in the squad. The protrusion 14a formed on the first arm 14 is connected to the outermost hole 15a formed in the second arm 15.
It is fitted with iron. Further, a resilient spring 16 is interposed between the first and second arms 14 and 15.
4 Now, when the winding roll table 10 rotates, the first arm 14 is pressed against the winding roll table 10 side and the second arm 5 is pressed against the bearing 13 side by the resilient spring 16. As a result, rotational force in the same rotational direction is applied to the first and second arms I4 and 15. Note that the first arm 14 has a protrusion 32 of an auto-stop lever 32, which will be described later.
A bifurcated piece 14b is formed to be engaged with a. 17 is a take-up unit, one end of which lever 17a is supported on the chassis 1, and a take-up pulley 17b is supported approximately in the center.

The rotating shaft 17c of this take-up pulley 17b protrudes from the lever bar 17a and can come into sliding contact with the rubber roller 10b of the take-up roll stand 10. Further, an engagement protrusion 17d is formed at the tip of the take-up lever 17a, and the engagement protrusion 17d comes into contact with and loosens the abutment front edge 20c of the set plate 20, which will be described later.
Further, a spring 17e is stretched between the shaft-supported side and the chassis 1, and rotates the lever 17a clockwise. That is, the engaging protrusion 17d is pressed toward the supporting front edge 20c of the set plate 20. 18 is a motor, and the pulley 18a is a take-up pulley 17b,
A belt 19 is wound around the second flywheel 6 and the first flywheel 4.

Reference numeral 20 denotes a set plate that is slidably provided on the chassis 1, and includes an extension piece 3d of the pinch roller unit 3 described above and a protruding piece 20a that supports when the cassette is installed.
, a notch 20b into which one end of the lever arm 40 (described later) is inserted, a contact front edge 20c that constantly comes into contact with the engaging protrusion 17d of the take-up unit 17, and a cam plate 29c (described later) that always comes into contact with the notch 20b. abutting rear edge 20d
is formed.

Further, a shaft 20e is mounted on the tip of the set plate 20, and a biasing arm 22 is rotatably supported on the shaft 20e. The spring 23 is stretched between one piece of the biasing arm 22 and the left protruding piece of the set plate 20, and the other part of the biasing arm 22 is always in contact with the cam plate 29c.
Note that this set plate 20 is always biased forward by a spring 21. Reference numeral 24 denotes a control bar which is rotatably supported by a shaft mounted on a chassis which rotatably supports a first gear 25, which will be described later, and one end of which is connected to the urging arm 2.
2 is rotated counterclockwise, it is held against and loosened by the hanging piece 22a and rotated clockwise, and at this time, the other end contacts the auto stop lever 32 and rotates the lever 32 counterclockwise. .

Reference numeral 25 denotes a first gear bearing on the chassis 1, and as shown in the back view of FIG. 9, an eccentric ring 25a is formed on the lower surface thereof, and a cam base 25b is formed approximately in the center of the eccentric ring 25a.
and a protrusion 25c are formed.

The protrusion 25c is formed so as to be located on the same circle as the middle of the narrowest groove portion 25a formed by the eccentric cam 25b and the outer peripheral wall of the eccentric circular groove 25a. A second gear 26 is fixed to a rotating shaft 27a of a pulley 27 bearing on the chassis, and is meshed with the first gear 25.

Note that a belt 28 is wound between the pulley 27 and a pulley 4b provided on the rotating shaft of the first flywheel 4. Therefore, when the first flywheel 4 is rotated, the first gear 25 is rotated via the second gear 26. Reference numeral 29 is a third gear that is pivotally supported by the chassis 1 and meshes with the second gear 26, and has two cutout portions 29a that do not mesh with the second gear 26.

Further, on the upper surface of the third gear 29, cam teeth 29b and a cam plate 29c are integrally formed. 30 is the above cam tooth 2
This is a lock arm pivotally supported by the chassis 1 that is engaged with the chassis 1 and released from the engagement when the solenoid 31 is energized and attracted.

Reference numeral 32 designates an auto-stop lever whose one end is pivotally connected to a stop lever 45, which will be described later, and a protrusion 32a provided on the lower surface of the auto-stop lever approximately in the center thereof is engaged with the bifurcated piece 14b of the first arm 14.

Further, a crescent-shaped engagement protrusion 32b formed at the tip faces into the eccentric circular groove 25a of the first gear 25. Note that a shoulder portion 32c that is engaged with the release protrusion 25d of the first gear 25 is formed at the tip of the auto-stop lever 32. In FIG. 9, when the take-up roll table 10 rotates in the tape winding direction, that is, in the direction of the arrow, the first arm 14 is pressed against the take-up roll table 10 side by the spring 16. Therefore, the first arm 14 is also applied with a rotational force in the direction of the arrow.

Therefore, the auto-stop lever 32 whose protrusion 32a is engaged with the bifurcated piece 14b is given a clockwise rotational force. As a result, the engaging protrusion 32b is brought into a state along the outer circumferential wall of the eccentric circle 25a of the first gear 25. Furthermore, when the take-up reel table 10 supplies the tape, that is, rotates in the opposite direction to the arrow, the first arm 14 is given a rotational force in the opposite direction, so the auto stop lever 32 is rotated in the opposite direction. A rotational force is applied, so that the engagement protrusion 32b is in a state along the outer circumferential wall of the cam base 25b. In any of the above cases, when the tape stops running and the take-up reel stand 10 stops rotating, the first arm 14 becomes free, so the biasing force applied to the auto-stop lever 32 is also removed. It disappears. Therefore, after the first gear 25 rotates and the engagement protrusion 32b passes through the narrowest groove portion 25a, it is positioned on its trajectory and is engaged with the protrusion 25c on the trajectory. As a result, after the auto-stop lever 32 is pulled up, the shoulder portion 32c comes into contact with the release protrusion 25d of the first gear 25, and the engagement between the engagement protrusion 32b and the protrusion 25c is released. 1 with a play arm supported on one end.

A roller 33a is provided, which corresponds to the cam plate 29c of the third gear 29 described above. Further, a spring 33c is stretched between the end of the play arm 33 and the chassis 1, and applies rotational force to the play arm 33 in a counterclockwise direction. Therefore, the roller 33a is always supported by the cam plate 29c. Furthermore, play arm 3
At the other end of 3 is a control punch 2f protruding from the bottom surface of the head stand 2.
is compatible. When the cassette 8 is mounted, the cassette stand 2 moves forward for the reasons described above, and the control village 2f comes into contact with the play arm 33 and stops.

This state is a special period state. When a play lever 44, which will be described later, is pressed, the solenoid 31 is energized and the lock arm 30 is attracted. As a result, the engagement between the lock arm 30 and the cam teeth 29b is released, and the cam plate 29c is moved toward the set plate 20 (the first and seventh
, 8) is slightly rotated by the rear end green 20d of the twill (which is pulled downward in Fig. 8). As a result, the second gear 2
The notch 29a of the third gear 29, which was in the position facing the third gear 6, is shifted, and the third gear 29 and the second gear 26 are therefore engaged.
The third gear 29 is rotated until the next notch 29a faces the second gear 26. When the gear 29 is rotated, the roller 33a of the play arm 33 is supported by the large protrusion of the cam plate 29c, and the play arm 33 is rotated clockwise, so that the head stand 2 moves further forward to perform playback or playback. This is the recording position. From this state, the stop lever 45
When the solenoid 31 is energized again by pressing , the engagement between the lock arm 30 and the cam teeth 29b is released, and the play arm 33 is now slightly rotated by the roller 33a. As a result, the third gear 29 is engaged with the second gear 26, and the third gear 29 is rotated. Therefore, the roller 33a is assisted by the small diameter portion of the cam plate 29c, and the play arm 33 is rotated counterclockwise to return the head stand 2 to the waiting position. Reference numeral 34 designates a rapid-forwarding unit pivotally supported by the chassis, and a gear 34a is provided on the upper surface of the unit to selectively engage with the gear 9a of the supply reel stand 9 or the gear 10a of the take-up reel stand 10.

The gear 34a is iron-bonded to the upper end of the rotating shaft that is supported by the rapid-forwarding unit 34, and the lower end of the rotating shaft is selectively connected to the first and second flywheels 4 and 6. The rubber roller 34b is iron-bonded. Further, the fast-forwarding unit 34 has a protrusion 34c formed on the side thereof that supports a fast-forwarding arm 35, which will be described later, and a protrusion 34d that engages with a slide lever 38, which will be described later. Reference numeral 35 designates a fast-forwarding arm pivotally supported at the tip of a fast-forwarding lever 47 to be described later, and springs 36 and 37 are tensioned between one end of the table-feeding arm and the chassis and between the other end of the fast-forwarding arm and the fast-forwarding unit 34. ing.

Further, the fast-forward arm 35 is formed with an upright piece 35a that supports the tip of a rewind lever 48, which will be described later, and a hanging piece 35b that comes into contact with a bent portion 47c of the fast-forward lever 47. Reference numeral 38 designates a slide lever having one end 38a guided by a guide pin provided on the chassis 1 and the other end guide piece 38b guided by a groove (not shown) drilled in the chassis 1. 34d and a step portion 38c that rests against the hanging piece 33b of the play arm 33, and a projecting piece 38d that rests against the hanging piece 33b of the play arm 33.

A spring force is always applied to the slide lever 38 toward the front (downward in the figure) by a spring 39. Then, when the fast-forward lever 47 is pushed, the fast-forward arm 35
The hanging piece 35b is the bent part 47c of the table feed lever 47.
I move forward with this in mind.

As a result, the fast-forward arm 35 comes into contact with the protrusion 34c of the fast-forward unit 34, causing the fast-forward unit 34 to rotate clockwise. Therefore, the rubber roller 34b is brought into contact with the first flywheel 4, and the gear 34a is engaged with the gear 10a of the take-up roll stand 10, so that the take-up roll stand rotates at high speed and rapidly feeds the tape. On the other hand, when the rewind lever 48 is pushed, the upright piece 35a of the fast-forward arm 35 moves to the rewind lever 48.
8 and is rotated clockwise against the spring force of the spring 36. As a result, the rapid forwarding unit 34 is rotated counterclockwise by the spring force of the spring 37. Therefore, the rubber loaf 34b comes into contact with the second flywheel 6, and the gear 348 is in contact with the gear 9 of the supply reel stand 9.
The supply reel stand 9 rotates at high speed and rewinds the tape. 40 is the support pin l of chassis 1 approximately in the center.
d, one end is pivotally supported by a play lever 44, which will be described later, and the other end is supported by a set plate 20.
It faces the inside of the notch 20b.

Note that the lever arm 40 is constantly applied with a counterclockwise rotational force by a spring 41. Reference numeral 42 designates a pause lever guided by a guide groove 42a, and a cutout groove 42b is formed at the tip to avoid the support pin ld placed above.

The pause lever 42 can be freely engaged with and disengaged from a pause lever lock plate 43 that is mounted on the chassis 1 and supported by a pin that passes through the groove 20f of the set plate 20. That is, once the pause lever 42 is pressed, the punch 42c is engaged with the lock plate 43 and held in the pressed state,
If the lock plate 43 is pressed again, the engagement between the lock plate 43 and the protrusion 42c is released and the lock plate returns to its original position. 44 is a play lever having two lock pieces 44a and 44a', and 45 is a stop lever that has a lock piece 45a and is guided by a guide groove 45b, and is always pushed forward (downward in the figure) by a spring 46. has been granted.

47 has a lock piece 47a and is guided by a guide groove 47b, a fast-forwarding lever, 48 a lock piece 48a
The rewind lever is guided by a guide groove 48b, and the tip of the lever 48 and the tip of the fast-forward lever 47 are in contact with an auxiliary lever 49.

Spring force is always applied to the fast forward and rewind levers 47, 48 and the auxiliary lever 49 toward the front (downward in the figure) by springs 50 to 52. 5
3 is a recording lever that has a lock piece 53a and is guided by a guide groove 53b, and a spring 54 always applies a spring force toward the front (downward in the figure).

Although not shown, each lever 44, 45, 47,
48 and 53 are supported between the chassis 1 and a guide plate (not shown) at the rear of each lock piece, and therefore, the levers other than the play lever 44 are supported at two places in the guide groove and the guide plate. It is designed to move in a straight line. Reference numeral 56 indicates a track interval detection lever supported by a pin li provided on a mounting piece lh bent downward on the side surface of the chassis 1;
is a lock plate pivotally supported by a pin lj provided on the mounting piece lh, and is constantly applied with a clockwise rotational force (FIG. 12) by a winding 6 imitator 58. One end of the lock plate 67 is engaged with a protrusion 56a of the song interval detection lever 56, and a claw 57a is formed at the end to engage with one end 59a of a control plate 59 that controls rotation of a third lock plate 76, which will be described later. has been done. Further, the lower tip 56b of the song interval detection lever 56 is in contact with one end 59a of the control plate 59. This control board 5
9 is applied with a spring force by a coiled spring 60' in a clockwise direction (FIG. 19), that is, one end is pressed against the lower tip 56b of the song interval detection lever 56, and the other end is pressed against the third lock plate 7.
6 is currently being sold. When the song interval detection lever 56 is rotated in FIGS. 11 and 12 (clockwise in FIG. 12 (double-dot chain line)), the lower tip 56b wraps around the control plate 59 and the spring of the coil spring 60'. counterclockwise (first
(Fig. 9).

At the same time, since the protrusion 56a of the lock plate 57 moves, a clockwise rotational force is applied by the spring force of the coiled spring 58 (FIG. 12). Therefore, the claw 5 of the lock plate 57
7a is initially in contact with the control plate 59, but the control plate 59
As the control plate 59 rotates, one end of the control plate 59 is positioned above the pawl 57a, so that the spring force of the coil spring 58 causes the lock plate 5
The pawl 57a of No. 7 and the control plate 59 are engaged and locked.
On the other hand, to release the lock, the protrusion 56a rotates the lock plate 57 counterclockwise against the spring force of the coiled spring 58 by returning the song interval detection lever 56, so that the pawl 57a and the control plate 59 are separated. Ru. Reference numeral 60 denotes an eject lever supported by a pin provided with a mounting piece 1K' bent downward on the side surface of the chassis 1, and 61 also a mounting piece 1M.
The eject lever 60 is rotated against the spring force of a spring 62 tensioned between the eject lever 60 and the mounting piece lk.
13 to 15), the lever 61 comes into contact with the projection 61a of the sub-ject lever 61, and the lever 61 is also rotated to the right against the spring force of the coil spring 63.

This rotation to the right causes the engagement punch 64a of the lid body 64 that covers the cassette portion, which had been engaged with the fishing portion 61b, to disengage.
Therefore, the lid 64 is opened. Also, eject lever 6
As the lever 6 rotates, the lever 6 comes into contact with an auxiliary plate 65 attached to the head stand 2, moves the auxiliary plate 65 to the right, and thus returns the head stand 2 to its initial position. As a result, the protruding piece 7e of the head stand locking plate 7 further protrudes from the lock elongated hole 2e of the head stand 2, and the engagement claw 7d is engaged with the lock elongated hole 2e by the operation of one end of the protruding piece 7e of the head stand locking plate 7.
lock in the first position. 66 is a pin l attached to a mounting piece ln bent downward on the side of the chassis.
The auto repeat lever 67 is supported by a pin LP which is also mounted on the mounting piece ln, or is made into a beat lock plate, and a spring 68 is installed between the auto repeat lever 66 and the IJ beat lock plate 67. It is stretched,
The protruding piece 66a of the auto-repeat lever 66 and the bent piece 67a of the beat lock plate 67 function so as to be in constant contact with each other.

Reference numeral 69 is a beat slide lever which is interposed between the chassis 1 and the head stand 2 and is movable in the front-rear direction (left-right direction in FIGS. 13 to 15), and is always moved rearward (to the right in FIG. 13) by a spring 70. A spring force is applied.

A hanging piece 69a is formed on the right side of this repeat slide lever 69, and a locking hole 69b is provided on this hanging piece 69a. Then move the auto repeat lever 66 forward (first
3), the lever 66 comes into contact with the protrusion 69c of the repeat slide lever 69, and the discussion bar 6
Move 9 to the left. Also auto repeat lever 66
When the repeat lock plate 67 is rotated, the repeat lock plate 67 is also rotated in the same direction by the spring 68, so that the repeat lock plate 67
The lock village 69b is engaged with the engagement recess 67b to hold the repeat slide lever 69 in a moving state. On the other hand, when the auto repeat lever 66 is returned to the rear (to the right in FIG. 13), the protruding piece 66a pushes the bent piece 67a, so the repeat lock plate 67 is rotated in the same direction as the auto repeat lever 66, and is therefore engaged. The matching recess 67b is the lock village 69b
More detached. This allows the repeat slide lever 69
The spring 7 moves to the right and returns to its original position. In FIG. 16, reference numeral 71 denotes a substantially L-shaped reel stand stop plate with one end supported on the chassis 1, and a pin 7 supporting the extension piece 3d of the above-mentioned pinch low unit 3 at the end.
1a is provided. A spring 72 is stretched between the pin 71a and the chassis 1, and acts so that the pin 71a is always in contact with the extension piece 3d. Further, the top of the reel stand stop plate 71 has a take-up reel stand 1.
A tooth portion 71b that can mesh with the gear 10a of 0 is formed.

Therefore, if you operate the eject lever 60 now, the head stand 2
is moved backward, and the pinch loaf unit 3 is rotated clockwise, so that the pin 71 is rotated by the extension piece 3d of the unit 3.
a is pressed. Therefore, the tooth portion 71b of the reel stand stop plate 71
is engaged with the gear 10a of the take-up roll stand 10, and the rotation of the take-up roll stand 10 is stopped. Note that as another means for forcibly stopping the take-up reel table 10 when the eject lever 60 is operated, the methods shown in FIGS. 17 and 18 can also be considered.

In other words, the central part is pivotally supported by the support pin ld on which the winding roll stand stop plate 73, which is approximately in the shape of a dogleg, is supported, and one end is always supported by the pin 2g of the head stand 2, and the other end is used for winding. It is compatible with one reel stand. Therefore, when the eject lever 60 is operated and the head stand 2 is moved backward, the pin 2g rotates the reel stand stop plate 73 counterclockwise, and the tip of the reel stand is connected to the winding reel stand 10.
is pressed against the gear 10a. As a result, the rotation of the winding reel stand 10 is stopped. As another embodiment, as shown in FIG. 18, a part of the head stand lock plate 7 is extended to form a stop piece 7f, and an engagement protrusion 7g is provided at the tip of the stop piece 7f. A plurality of vertical holes 10d are provided. As a result, the eject lever 60 is operated 4 to remove the cassette 8, and the head stand lock plate 7 is moved to the spring 7.
When the original state is restored by a, the engagement protrusion 7 of the stop piece 7f
g is pressed against the back surface of the winding reel stand 10, and finally inserted into the vertical hole 10d. Therefore, the rotation of the winding reel table 10 is stopped. In Figures 19 to 21, 74, 75,
Reference numeral 76 designates first to third lock plates that are each pivotally supported by a shaft 77 that is pivotally connected to the chassis 1, and are held in a horizontal state by coil springs (not shown).

The lock pieces 47a, 48a, and 53a formed on the fast forward lever 47, the rewind lever 48, and the recording lever 53 correspond to the tenth lock plate 74, and the stop lever 45 and the second lock plate 75 correspond to each other. One of each lock piece 45a and 44a formed on the play lever 44 corresponds to each other,
Furthermore, other lock pieces 44a' formed on the play lever 44 correspond to the third lock plate 76, respectively. Also, the first lock plate 74 has an end portion 7 adjacent to the second lock plate 75.
Similarly, a stepped portion 75a is formed at 4a in correspondence with the stepped portion 76a of the third lock plate 76. Therefore, the first lock plate 7
4 is lowered by itself, but when the second lock plate 75 is lowered, it lowers the first lock plate 74 and also lowers the third lock plate 76.

However, the stepped portions 75a and 7 of the second and third lock plates 75 and 76
Since a gap is formed in 6a from the beginning, the third lock plate 76 is lowered midway through the lowering of the second lock plate 75. Next, the shapes of each lock plate and each corresponding lock piece will be explained with reference to FIGS. 21A to 21E.

The 30th locking plate 76 has a fishing portion 76b formed by an upwardly inclined surface 760 and a vertical surface 760 extending from the upwardly inclined surface 760, and the locking piece 44a' of the play lever 44
6b to lower the third lock plate 76, and has fishing portions 44a,' that are engaged with the vertical surface 76b2 after passing the inclined surface 76b.

The second lock plate 75 has a descending amount control portion 75b formed by an upwardly inclined surface 750, a steeply downwardly inclined surface 75Q connected thereto, a wider gently downwardly inclined surface 75, and a vertical surface 75b4 connected thereto. , and the lock piece 4 of the pre-lever 44.
4a is a protrusion 4 that is not engaged with the descending amount control section 75b.
4a, is formed. The third lock plate 76 is also lowered by the lowering amount of the second lock plate 75 when the protrusion 44a of the lock piece 44a passes the top of the lowering amount control section 75b. Further, the second lock plate 75 is formed with another lowering amount control section 75c. That is, the upward slope 75c
, and the descending slope surface 75c2 and vertical surface 7 connected thereto.
5c3, and the height of the top thereof is the same as the height to the top of the other descent amount control part 75b. The lock release piece 45a of the stop lever 45 is formed with a protrusion 45a that is not engaged with the lowering amount control section 75c. And unlocking piece 45
When a passes through the top, the first lock plate 74 and the third lock plate 76 also descend, and if they are locked, they are released. The first lock plate 74 corresponds to the lock pieces 47a and 48a of the fast-forwarding lever 47 and the rewinding lever 48, and has an upwardly inclined surface 740 and a downwardly inclined surface 74& connected thereto.
It further has a hook portion 74b formed with a vertical surface 74 wide,
Also, the lock piece 4 of the fast forward lever 47 and the rewind lever 48
7a and 48a are the above-mentioned upwardly inclined surface 740 and downwardly inclined surface 74
The vertical surface 74 is in sliding contact with the hook portion 47a, which is engaged with the Q.
48a. Further, the first lock plate 74 has a hooked portion 74c formed by the inclined surface 74c and a vertical surface 74c2 connected thereto, and the lock piece 53a of the recording lever 53 slides against the inclined surface 74c. In contact with the vertical plane 74
It has a hook portion 53a that is engaged with c2. In FIGS. 8 and 19, reference numeral 77 denotes a switch control slide lever, which is constantly moved to the right by a spring 78.

This slide lever 77 has a play lever 44.
lock piece 44a, lock piece 47a of fast-forward lever 47
A sloped portion 77a is provided at a portion corresponding to the lock piece 48a of the rewind lever 48 and the lock piece 53a of the recording lever 53, so that the slide lever 77 is moved by the spring force of the spring 78 no matter which lever is pressed. Move to the side that resisted. Note that the slide lever 77 has an inclined surface 77a.
A known recording lever blocking plate (not shown) is provided opposite to the recording lever 53 to prevent operation of the recording lever 53 when other operating levers are being operated. FIG. 22 shows a circuit diagram, where S, is a power switch, S2 is a timer switch that is normally closed when the timer is not operated, and remains open until the set time is reached when the timer is operated, and S3 is a slide lever 77 for controlling the switch. S4 is a switch that is opened when the fast forward lever 47 and rewind lever 48 are operated and the auxiliary lever 49 is moved. S5 is a switch that is closed when the second lock plate 75 is lowered. S6 is a switch that is closed when the second lock plate 75 is lowered. S6 is a switch that is closed when the second lock plate 75 is lowered. S7 is a switch that is opened when the slide lever 38 slides by the rotation of 33, S7 is a switch that is closed when the repeat slide lever 69 is slid, S8 is a switch that is closed when the stop lever 45 is operated, and S9 is the slide lever mentioned above. A switch that closes when 38 slides, S
, o are switches that are closed when the recording lever 53 is operated, S, . is a switch that is closed when the auxiliary lever 49 is moved; S, 2, S, 3 are remote control switches not shown in the mechanism diagram; S, 2 is a switch that is closed when performing a play operation; is a switch that closes when the stop operation is performed, S and 4 are memory switches not shown in the mechanism diagram, and S. 5, the count of the counter 11 is 99
It is a counter switch that closes when it reaches 9.

Ps is a switch that is closed when the song interval detection lever 56 is operated, MS is a circuit for detecting a song interval, and A is an amplifier. Note that 18 and 31 are the above-mentioned motor and solenoid. Next, the operation will be explained based on the above configuration.

Playing operation First, when the cassette 8 is placed on the head stand 2,
Since the protruding piece 7e of the lock plate 7 is pressed downward, the engagement claw 7d and the lock elongated hole 2e of the head stand 2 are disengaged. Therefore, the head stand 2 has a control punch 2f provided on its lower surface.
moves forward until it supports the play arm 33. In this state, the heads 2a and 2b of the head stand 2 are slightly inserted into the window of the cassette 8. On the other hand, when the head stand 2 moves forward, the protruding piece 3c of the pinch loaf unit 3 is disengaged, so the unit 3 is rotated by the spring 3b and the extension piece 3d comes into contact with the protruding piece 20a of the set plate 20. Unit 3 stops.

At this time, the pinch roller 3a and the capstan 4a are not in contact with each other (FIG. 23). When the play lever 44 is pushed in this state, the hook portions 44a,' of the lock piece 44 are moved to the third position.
Engaged with fishing part 76b of lock plate 76 (Fig. 21A)
.

Also. Since the lock piece 44a pushes down the second lock plate 75, the switch S5 located on the lower surface thereof is closed, and the bar 77 is further slid by the lock piece 44a and the switch S3 is closed. Therefore, the power switch S,
If the timer switch S2 is closed, the motor 8 is energized. Further, since the switches S4 and S6 are normally closed contacts, the solenoid 31 is energized.
When the solenoid 31 is energized, the lock arm 30 is attracted and is unlocked from the cam teeth 29b. Then, the cam plate 29c is slightly rotated by the set plate 20, and the third gear 29 is engaged with the second gear 26. Here, since the motor 8 is rotating, the first flywheel 4 is being rotated by the belt 19. Therefore, the pulley 27 is rotated via the belt 28, and the second gear 26 is rotated, so that the third gear 29 is rotated approximately 180 degrees. 3rd gear 2
9, the large part of the cam plate 29c comes into contact with the roller 33a of the play arm 33, and the play arm 33 rotates and separates from the control hole 2f of the head stand 2. Therefore, the head stand 2 moves into the stopper elongated hole 2d. Move further forward until it hits pin lb. On the other hand, since the abutment front end green 20d of the set plate 2 corresponds to the small diameter portion of the cam plate 29c, it is pulled by the spring 21, and therefore the extension piece 3d of the pinch low unit 3 separates from the protruding piece 20a.

As a result, the unit 3 is rotated and the pinch roller 3a
is pressed against the capstan 4a. When the set plate 20 is further pulled, the engagement protrusion 17d of the take-up unit 17 is regulated by the rear end green 20c.
moves following the supporting rear end green 20c by the spring 17e.

As a result, the lever 17a is rotated and the rotating shaft 17c is brought into contact with the rubber roller 10b of the winding roll table 10. Therefore, since the take-up pulley 17b is rotated by the belt 19, the take-up table 10 is rotated (FIG. 24). As described above, the rotation of the motor 18 rotates the winding table 10 and the capstan 4a, which is the rotating shaft of the first flywheel 4, and the amplifier A operates to reproduce the tape.

When the stop lever 45 is pressed by the play operation, the second lock plate 75 is pushed down by the lock release piece 45a, so the third lock plate 76 is further pushed down, and therefore the lock piece 44 of the play lever 44 and the third lock plate 76 are pushed down.
The bar arm 4 is disengaged from the lock plate 76, which will be described later.
Returned by 0. Further, the lock release piece 45a of the stop lever 45 closes the switch S8. On the other hand, since the play arm 33 is rotated, the slide lever 38 in contact with it is pushed, opening the switch S6 and closing the switch S9. Therefore, the solenoid 31 is energized, the lock arm 30 and the cam teeth 29b are unlocked, the cam plate 29c rotates a little, and the third gear 29 and the second gear 26 are engaged. As a result, the third gear 29 is approximately 1
Since it rotates 80 degrees, the play arm 33 returns to its original position. Therefore, the play arm 33 comes into contact with the control village 2f, and the head stand 2 is returned to the intermediate position. On the other hand, set plate 20
is pulled against the spring force of the spring 21, so that the supporting rear edge 20c returns the take-up unit 17 to its original state against the spring force of the spring 17e. Therefore, since the rotating shaft 17c separates from the rubber roller 10b of the take-up roll stand 10, the rotation of the take-up roll stand 10 is stopped. Further, when the set plate 20 is pulled, the projecting piece 20a pushes the extension piece 3d of the pinch loaf unit 3, so that the unit 3 is rotated and the pinch roller 3a is opened from the capstan 4a. As described above, the rotation of the take-up reel table 10 is stopped and the pinch roller 3a is separated from the capstan 4a, so that the tape stops running.

Furthermore, since the slide lever 77 returns to its original position, the switch S3 is opened, and the power to the motor 18 and amplifier A is also cut off. Next, when the eject lever 60 is pulled, the sub-eject lever 61 is rotated at the same time as the head stand 2 finishes retreating, and the engagement between the hook portion 61b and the engagement village 64a of the lid body 64 is released.

Therefore, the lid 64 is rotated, and the cassette 8 is released from the head stand 2. Further, as the head stand 2 moves, the engaging claw 7d is pushed down by the back surface of the head stand 2,
Further, when the end face of the lock elongated hole 2e passes through, it faces into the innermost hole 2c, so when the eject lever 60 is released, the engaging claw 7d and the elongated hole 2e are engaged. This ends the project. Recording operation With the cassette 8 loaded in the head stand 2, press the recording lever 5.
3, the hook 53a of the lock piece 53a is engaged with the hook 74c of the first lock plate 74 (FIG. 21E).

When the recording lever 53 is pressed, the switch S,. is closed, and a recording circuit (not shown) is activated. Further, since the lock piece 53a of the recording lever 53 moves the slide lever 77, the switch S3 is closed. Therefore, since the motor 8 operates and the solenoid 31 is energized, the head stand 2 moves further forward by the same operation as in the entrusted play state, and the set plate 20 retreats, so that the pinch roller 3a is pressed against the capstan 4a. Also, the rotating shaft 17c is connected to the rubber roller 1 of the winding table 10.
Contact with 0b. Therefore, the tape runs, and recording begins (FIG. 24). Note that the play lever 44 is pulled by the arm levers 4 and engaged with the third lock plate 76. When the fast-forwarding lever 47 is pushed with the fast-forwarding operation cassette 8 loaded on the head stand 2, the locking piece 47a is engaged with the fishing portion 74b of the first locking plate 74.

Further, when the fast-forwarding lever 47 is pushed, the fast-forwarding arm 35 moves and the hanging piece 35b is in contact with the bent portion 47c, so that the fast-forwarding arm 35 pushes the projecting piece 34c of the fast-forwarding unit 34. As a result, the fast-forwarding unit 34 rotates, and the gear 34a is transferred to the gear 10a of the winding roll table 10.
It meshes with. Further, the rubber roller 34b is pressed against the first flywheel 4. On the other hand, when the fast forward lever 47 is pushed, the lock piece 47a moves the slide lever 77, so the switch S3 is closed and the motor is energized. Therefore, the winding reel table 10 rotates at high speed (FIG. 25).
Further, when the stop lever 45 is pressed, the second lock plate 75 is lowered, so the first lock plate 74 is also lowered.

As a result, the engagement between the fast-forward lever 47 and the first lock plate 74 is released, and the lever 47 returns to its original state. Therefore, the fast-forwarding arm 35 also returns to its original state, so the fast-forwarding unit 34 also returns, the gears 34a and 10a are disengaged, and the rubber roller 34b also separates from the first flywheel 4. Also, the slide lever 77 returns to switch S3.
is opened and becomes a stop state. When the rewind lever 48 is pushed with the rewind operation cassette 8 loaded on the head stand 2, the lock piece 48a is engaged with the saw portion 74b of the first lock plate 74.

Further, when the rewind lever 48 is pushed, the fast forward arm 35 is rotated against the spring force of the spring 36, so the fast forward unit 34 is pulled by the spring force of the spring 37 and rotates, and the gear 34a and the Gear 9 of reel stand 9
a are meshed with each other. Further, the rubber roller 34b is pressed against the second flywheel 6. On the other hand, when the rewind lever 48 is pushed, the lock piece 48a moves the slide lever 77, so the switch S3 is closed and the motor 8 is energized. Therefore, the supply reel stand 9 is rotated in reverse at high speed. (
Figure 26). Further, when the stop lever 45 is pushed, the second lock plate 75 is lowered, and the first lock plate 74 is also lowered.

This releases the engagement between the rewind lever 48 and the first lock plate 74, and the lever 48 returns to its original state. Therefore, due to the spring force of the spring 36, the fast feed arm 35 also returns to return the fast feed unit 34 to its original state. As a result, the gear 34a and the gear 9a are disengaged, and the rubber roller 34b is also separated from the second flywheel 6. Further, the slide lever 77 also returns and the switch S3 is opened to enter the stop state. Auto stop operation during play or recording operation As mentioned above, during play or recording operation, the head stand 2 advances to the recording/playback position, and the winding reel stand 1 moves forward to the recording/playback position.
0 is rotating, the first and second arms 1 for end detection
4 and 15 are provided with rotational force in the same rotational direction as the winding roll table 10.

Therefore, the auto-stop lever 32 engaged with the first arm 14 is also given a rotational force in the same direction, and the engagement protrusion 32b provided at the tip of the auto-stop lever 32 engages with the eccentric circular groove 25a of the first gear 25.
is pressed against the outer peripheral wall of the On the other hand, the first gear 25 is engaged with the second gear 26, and since the belt 28 is wound between the second gear 26 and the first flywheel 4, the first gear 25 is rotating. Therefore, the first gear 25 is rotated with the engagement protrusion 32b pressed against the outer circumferential wall, and the engagement protrusion 32b and the protrusion 25c are not engaged with each other. When all of the tape is wound up and the rotation of the winding reel stand 10 stops, the external force that was pressing the engagement protrusion 32b against the outer circumferential wall disappears, so that the engagement protrusion 32b is pushed into the narrowest groove 2.
5a, it is held at that trajectory position. Since the protrusion 25c is located on this trajectory, the rotation of the first gear 25 causes it to engage with the engagement protrusion 32b. This causes the auto-stop lever 32 to be pulled and the stop lever 45 to be pulled. Pulling the stop lever 35 is the same as pushing the stop lever 35, and therefore the play state is changed from the play state to the stop state by an action similar to the stop action. In addition, the above-mentioned engagement protrusion 3
2b and the protrusion 25c are engaged, as the first gear 25 rotates, the shoulder portion 32c of the auto stop lever 32 comes into contact with the release protrusion 25d of the first gear 25, and the engagement protrusion 32
b and the protrusion 25c are disengaged, and the stop lever 45 returns to its original position. Auto-stop operation during fast forwarding As described above, during fast forwarding, the head stand 2 is in the intermediate position, and the winding reel stand 1 is rotating at high speed in the same direction as in the play state.

Therefore, the engaging protrusion 32b is connected to the eccentric circular groove 25a of the first gear 25.
is pressed against the outer peripheral wall of the Then, when the rotation of the winding reel stand 10 stops, the engaging protrusion 32b and the protrusion 25c are engaged by the same operation as described above, and the following operation is the same as that during play or recording, so a description thereof will be omitted. .
Note that even if the stop lever 45 is pulled and S8 is closed, the head stand 2 is in the intermediate position, so the switch S9 remains open and the solenoid 31 is not energized.

Auto-stop operation during rewinding As described above, during rewinding, the head stand 2 is in the intermediate position, and the take-up reel stand 10 is rotating at high speed in the opposite direction to that in the play state.

Therefore, since the auto-stop lever 45 is given a rotational force in the opposite direction to that in the above case, the engagement protrusion 32b is pressed against the cam base 25b in the eccentric circular groove 25a of the first gear 25. As a result, while the take-up reel stand 10 is rotating, the first gear 25 is rotated with the engagement protrusion 32b in pressure contact with the cam stand 25b. Then, when the rotation of the winding reel table 10 is stopped, the engagement protrusion 32b is connected to the narrowest cross section 25a,
After passing through, it is held at that trajectory position. Since the protrusion 25c is located on this trajectory, the rotation of the first gear 25 causes it to engage with the engagement protrusion 32b. Since the following operation is exactly the same as the auto-stop operation during fast forwarding, the explanation will be omitted. Pause operation during play or recording As described above, during play or recording, the head stand 2 is in the recording/reproducing position and the winding reel stand 10 is rotating.

When the pause lever 42 is pressed here, it is locked by the lock plate 43 and the set plate 20 is pushed to rotate the take-up unit 17. As a result, the rotating shaft 17c separates from the rubber roller 10b of the take-up roll stand 10, and the rotation of the take-up roll stand 10 is stopped. That is, the state is the same as when the tape has stopped running in the play or record state described above, but here the biasing arm 22 is rotated by the force of the spring 23, causing the control lever 24 to rotate. Therefore, the auto-stop lever 32 that is in contact with the control lever 24 is rotated in the same direction as in the play or fast-forward state, and the engagement protrusion 32b is moved into the eccentric circular groove 2.
Support the outer peripheral wall of 5a. As a result, the first gear 25
While rotating, the engaging protrusion 32b and the protrusion 25c are not engaged, that is, the playing or recording state is not stopped. (Figure 27). Auto stop operation during fast forwarding or rewinding When the head stand 2 is in the intermediate position during fast forwarding or rewinding, and the take-up reel stand 1
0 is rotating at high speed.

Even if the pause lever 42 is pressed here, since the large part of the cam plate 29c is in contact with the set plate 20 and the biasing lever 22, both levers 20 and 22 are not affected in any way, and therefore the biasing lever 22 is No external force is applied to the top lever 32. That is, the auto-stop operation is performed by an operation similar to the auto-stop operation described above after the tape is wound or rewound. When the fast-forward lever 47 is pressed in the cue operation play state, the fast-forward unit 34 is rotated via the fast-forward arm 35, the gear 34a is engaged with the winding roll stand 10 and the gear 10a, and the rubber roller 34b is moved against the first flywheel 4. Press it against the

When the fast forward lever 47 is pressed, the switch S9 is closed via the slide lever 38, and the switches S, . is closed, so the solenoid 31 is energized. As a result, the cam plate 29c rotates, the arm lever 33 is rotated, the head stand 2 is returned to the intermediate position, the pinch roller 3a is separated from the capstan 4a, and the rotating shaft 17c is rotated, and the rubber roller 10a of the winding reel stand 10 is moved away from the pinch roller 3a.
move away from Therefore, the winding reel table 10' is rotated at high speed and enters a fast forwarding state. Further, even if the first lock plate 74 descends, the third lock plate 76 does not descend, so the play lever 44
is maintained locked by the third lock plate 76. Note that since the set plate 20 does not rotate the lever arm 40, the play lever 44 is not returned. When the fast-forwarding lever 47 is released, the fast-forwarding arm 35 returns, the fast-forwarding unit 34 also returns, the gear 34a is disengaged from the gear 10a of the winding roll table 10, and the rubber roller 34b is separated from the first flywheel 4. The fast forward state is canceled.

Also, as the fast forward lever 47 returns, the slide lever 38 and the auxiliary lever 49 return, so the switches S6 and S
4 is closed (switch S5 is closed because the second lock plate 75 is lowered, switch S3 is closed because the second lock plate 75 is lowered, and switch S3 is closed because the second lock plate 75 is lowered).
7 is moving (closed), so the solenoid 31 is energized. As a result, the cam plate 29c rotates, the arm lever 33 is rotated, the head stand 2 is moved to the recording/playback position, the set plate 20 is moved, the pinch roller 3a is pressed against the capstile 4a, and the rotating shaft 17c is moved to the winding position. Reel stand 1
0 rubber roller 10a. Therefore, it returns to the pre-state again. When the rewind lever 48 is pressed in the review operation play state, the fast forward arm 35 is rotated and pulls the fast forward unit 34 via the spring 37. Therefore, the gear 34a and the gear 9a of the supply reel stand 9 are not engaged.

That is, the tape is prevented from being pulled in the opposite direction before the playing state is released. Since the rewind lever 48 is pressed, the switch S is moved by the auxiliary lever 49.
、． is closed (switch S9 is closed by slide lever 38), solenoid 311 is energized. As a result, the head stand 2 returns to the intermediate position in the same manner as the cue operation described above, the pinch roller 3a separates from the capstan 4a, and the rotating shaft 17c separates from the rubber roller 10a of the winding reel stand 10. Also, when the play arm 33 is rotated, the protrusion 3 of the fast-forwarding unit 34 is rotated.
4d and the stepped portion 38c of the slide lever 38 are disengaged. The fast-forwarding unit 34 further rotates, the gear 34a and the gear 9a of the supply reel stand 9 are engaged, and the rubber roller 34b is pressed against the second flywheel 6, resulting in a rewinding state. Then, when you release your hand from the rewind lever 48,
The fast-feeding arm 35 and the fast-feeding unit 34 return to their original states, the gear 34a and the gear 9a of the supply reel stand 9 are disengaged, and the rubber roller 34b is moved to the second flywheel 6.
The rewind state is released when the distance is further away.

Thereafter, the player returns to the playing state again by the same operation as the cue operation. When the rewind lever 48 is pressed in the quick review recording state, the first lock plate 74 is lowered by the lock piece 48a, so the recording lever 53 and the tenth lock plate 74 are disengaged and the recording circuit is stopped.

However, the play lever 44 is held in a locked state as in the cue and review operations described above. Note that the second lock plate 75 of the rewind lever 48 is connected to the play lever 44.
By being descended by. hook piece 48a
and the first lock plate 74 are never engaged. Furthermore, in the cue and review operations described above, the fast forward lever 47 and the rewind lever 48 are not engaged with the first lock plate 74, respectively, for the same reason as above. Then, when the rewind lever 48 is pressed, the rewind state is entered by an operation similar to the review action described above, and when the rewind lever 48 is released, the play state is entered.

Therefore, the recorded portion can be edited by simply operating the rewind lever 48.
It is something that can be played. Auto repeat operation If the auto repeat lever 66 is locked when neither green repeat nor fast forward or rewind is in progress, switch S7
is closed, so the motor 18 operates.

Further, the repeat slide lever 69 is moved forward by the auto-repeat lever 66, and the engagement piece 69d provided on the lever 69 pushes the upright piece 35a of the fast-forward lever 35, so the fast-forward lever 35 is rotated and the spring 37 is rotated. The rapid-forwarding unit 34 is rotated through the fast-forwarding unit 34. Therefore gear 34
a is engaged with the gear ga of the supply reel stand 9, and the rubber roller 34b is pressed against the second flywheel 6 to be in the return state. Then all of the tape is rewound and wound-
When the rotation of the table 10 stops, the stop lever 45 is pulled by the auto-stop operation described above.

Here, the switch S7 is closed, and the head stand 2
Since the switch is in the intermediate position, the switches S4 and S6 are closed, and when the stop lever 45 is pulled and the second lock plate 75 is lowered, the switch S5 is closed.
Solenoid 31 is energized. Therefore, play arm 33
is rotated, the head stand 2 moves forward to the new position, and the set plate 20 moves forward, so the pinch roller 3
a and the capstan 4a are pressed together, and the rotating shaft 17c and the rubber roller 10a of the winding table 10 are supported. Furthermore, the slide lever 3 is rotated by the rotation of the play arm 33.
8 is moved forward, the stepped portion 38c is moved forward by the fast-forwarding unit 34.
Push the protrusion 34d, rotate the rapid feed unit 34 a little to release the gear 34a from the gear 9a of the supply reel stand 9, and separate the rubber roller 34b from the second flywheel 6. Therefore, it becomes a play state. Note that when the set plate 20 moves forward, the bar arm 40 is rotated, and the play lever 44 is therefore pulled, and the third lock plate 7
6, and it can be seen from the outside that a play operation is in progress. When the play operation is completed and the rotation of the winding reel table 10 is stopped, the auto-stop operation described above is activated and the play arm 33 is rotated.

As a result, the slide lever 38 moves forward, and the stepped portion 38c
is disengaged from the protrusion 34d of the fast-forwarding unit 34, and the fast-forwarding unit 34 is rotated so that the gear 34a and the gear 9a of the supply reel stand 9 are engaged with each other, and the rubber roller 3
4b and the second flywheel 6 are brought into pressure contact with each other, resulting in a rewinding state. Thereafter, in the same way as the above-mentioned operation, when rewinding is completed, a play operation is started, resulting in an auto-repeat operation.
Auto-repeat operation from recording operation 4 When the auto-repeat lever 66 is locked during recording operation, the recording operation is performed without rewinding by the same operation as during the play operation described above.

When the recording is completed and the rotation of the winding reel stand 10 is stopped, an auto-stop operation is performed, the recording lever 53 is released, and a rewinding operation is started. Thereafter, the play state is entered after rewinding is performed by an operation similar to the auto-repeat operation in the above-described play operation. Manual auto repeat operation If a play operation is performed with the auto repeat lever 66 locked, the auto stop operation will operate at the end of the play operation and rewind will be performed, but the rewind will occur before the end of the play operation. If you wish to do so, press the stop lever 45.

When the lever 45 is pressed, the switch S8 is closed (
The switch S7 is opened because the auto-repeat lever 66 is locked, and the switch S9 is closed because the play arm 33 is rotated clockwise and the slide lever 38 is moved forward, so the solenoid 31 is energized. Therefore, the play arm 33 is rotated, the head stand 2 is moved back to the intermediate position, and the set plate 20 is moved forward, so that the pinch roller 3a is separated from the cab stun 4a, and the rotating shaft 17c is separated from the take-up roll stand 10, respectively. Further, the rotation of the play arm 33 causes the slide lever 38 to retreat and release the restriction on the fast feed unit 34, so the fast feed unit 34 rotates, the gear 34a is engaged with the gear 9a of the supply reel stand 9, and the rubber roller 34b is moved to the second position. 2 is pressed against the flywheel 6. Therefore, it becomes a rewinding state. To change the play state from the rewind state, press the stop lever 45 again, which closes the switch S5, and since the head stand 2 is in the intermediate position, switches S4 and S6 close, and then the auto repeat lever. Since the switch S7 is closed due to the locked state of the switch 66, the solenoid 31 is energized.

Since the following operation is the same as the operation from the rewinding state of the auto-repeat operation described above to the play state when the auto-stop is activated, a description thereof will be omitted. Fast-forward operation in auto-repeat operation When the fast-forward lever 47 is pressed to perform a fast-forward operation during a play operation with the auto-repeat lever 66 locked, the lock piece 47a moves against the first lock plate 74.
is engaged with the hook portion 74b of.

Also, as the fast forwarding lever 47 moves forward, the slide lever 38
moves forward, switch S9 is closed, and auxiliary lever 49
also move forward and switch S, . is closed, so the solenoid 31 is energized. Therefore, the head stand 2 is moved back to the intermediate position by the same action as when the stop lever 45 is pressed during the play action in the auto-repeat action described above.
The pinch roller 3a is connected to the rotating shaft 17 from the capstan 4a.
c are separated from the winding reel stand 10, respectively. Since the fast-forwarding lever 47 is pressed, the fast-forwarding arm 35 moves and pushes the protrusion 34c of the fast-forwarding unit 34 to rotate the fast-forwarding unit 34. Therefore, the gear 34a is engaged with the gear 10aZ of the winding reel table 10, and the rubber roller 34b is pressed against the first flywheel 4, resulting in a fast-forwarding state. In this fast forwarding state, the stop lever 45
When is pressed, the play Z operation is entered by an operation similar to the operation from rewind to play in the manual repeat operation described above. Song interval detection operation When the song interval detection lever 56 is rotated, the lower tip 56b rotates the control plate 59 counterclockwise against the spring force of the coil spring 60.

At the same time, since the protrusion 56a of the lock plate 57 moves, a clockwise rotational force is applied by the spring force of the coiled spring 58. Therefore, the pawl 57a of the lock plate 57 is initially
However, as the control plate 59 rotates, the claw 5
Since one end of the control plate 59 is located above the lock plate 7a, the claw 57a of the lock plate 57 and the control plate 59 are engaged and locked by the spring force of the coiled spring 58. Also, the song interval detection lever 5
6 turns the switch Ps ON. Next, when the play lever 44 is operated, the tape enters a playback state and starts running. At this time, since the third lock plate is pushed down by the control plate 59, the play lever 44 is not locked and is held in the operating state only by the lever arms 4. For example, when the rewinding lever 48 is operated in this playback state, the lever 48 is locked to the first lock plate 74 and the playback state is shifted to the winding state. Since the song interval detection lever 56 and the rewind lever 48 are operating, the song interval detection circuit MS is activated and the song interval (no signal period) on the tape is activated.
When this is detected, the play lever 44 is pulled in by the lever arm 40, lifts the second lock plate 75, releases the rewind lever 48 locked to the first lock plate 74, shifts to the playback state, and selects the desired recording portion. Play. Rapid forwarding can also be performed in the same manner. Close the recording timer operation power switch S, and lock the recording lever 53. When the timer switch S2 is closed in this state, the slide lever 77 has moved, so the switch S3 is closed, and the recording lever 53 has moved, so the switch S3 is closed.
. is closed, and since the head stand 2 is in the intermediate position, the switches S4 and S6 are closed. Therefore, recording is started by an operation similar to the recording operation described above, and when the tape reaches the end, the recording is stopped by an auto-stop operation. Close the play timer operation power switch S, and lock the play lever 44.

When the timer switch S2 is closed in this state, the slide lever 77 has moved, so the switch S3
is closed, the play lever 44 is pushed again, and the second lock plate 75 is closed.
Since the head is lowered, the switch S5 is closed, and since the head stand 2 is in the intermediate position, the switches S4 and S6 are closed. Therefore, the play is started by an operation similar to the above-described play operation, and when the tape ends, the automatic stop operation is performed and the play is stopped. Remote Control Operation Mechanism When a remote control switch S, 2 provided at a location not shown in the drawings is pressed, the motor 18 is energized, the second gear 27 is rotated, and the first gear 25 is rotated.

However, since it is neither in the recording/reproducing state nor in the fast forwarding/rewinding state, the supply IJ roll table 9 and the take-up roll table 10 do not rotate, and the auto-stop operation is activated. To operate the remote control, the song interval detection lever 56 is locked in advance and the third lock plate 76 is lowered. Then, when the stop lever 45 is pulled by the auto-stop operation and the switch S5 is closed (since the head stand 2 is in the intermediate position at this time, the switches S4 and S6 are closed), the solenoid 31 is energized. Therefore, the play arm 33 rotates, the head stand 2 advances to the new position, the set plate 20 is pulled forward, the pinch roller 3a is pressed against the capstan 4c, and the rotating shaft 17c is moved to the winding roll stand. Supported by 10 rubber rollers 1ob. Therefore, the play state is established, and the play lever 44 is pulled by the lever arm 40. However, since the third lock plate 76 is lowered by the time-song interval detection lever 56, the lock piece 44a
' and the third lock plate 76 are not engaged. Therefore, the play lever 44 is maintained in the pulled state only by the arm lever 40'. Then, when the remote control switches S, 3 are closed, even if the remote control switches S, 2 are opened, the play state is reached, so that S3 is closed. Therefore, since the solenoid 31 is energized, the head stand 2 returns to the intermediate position, the pinch roller 3a separates from the carburetor stan 4a, and the rotating shaft 17c separates from the rubber roller 10b. Furthermore, the play lever 44 returns to its original state due to the arm lever 4. Then, when the remote control switch S, 2 is closed again, the play state is resumed by the above-described operation. Memory operating mechanism Press memory switch S, 4, which is not shown in the drawing.

Then set the counter 1 to zero and turn the play lever 44.
When locked, the above-mentioned operation becomes a play operation. If it is desired to open the playback section again, the stop lever 45 is operated to perform the above-described stop operation to bring the playback to a stop state. Next, the rewind lever 48 is locked and the tape is rewound by the above-described rewind operation.
When the counter 1 is reversed and reaches 999, the counter switch S,5 is closed, and the slide lever 77 is closed.
Since the head stand 2 is in the intermediate position and the switch S6 is closed, the solenoid 31 is energized. As a result, the play arm 33 is rotated, the head stand 2 is advanced to the recording/playback position, and the set plate 20 is moved forward, so that the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17c is moved forward. Rubber roller 1ob of winding roll stand 10
It is said that it is. Therefore, the play state is reached, and the play lever 44 is advanced and locked by the bar arm 40. Note that the rewind lever 48 is unlocked. Eject operation while the winding roll table is rotating Winding roll table 1
0 is rotated by the driving force of the motor, that is, during recording, play, or fast-forwarding, the eject lever 6
0, the head stand 2 is moved back to the final position and the cassette 8 is ejected from the reel stands 9 and 10. However, in this state, the winding reel stand 10 continues to rotate due to the driving force of the motor, so the device continues to operate. Therefore, when the eject lever 60 is operated as shown in FIGS. 16 to 18, the take-up table 10 is forcibly stopped.
The device is stopped by the auto-stop operation described above. In other words, the embodiment shown in FIG. 16 is pinch roller knit 3.
17 due to the retreat of the head stand 2, and FIG. 18 due to the ejection of the cassette 8, respectively.
0 is stopped. Remote control operation in auto-repeat operation The remote-control operation does not operate unless the song interval detection lever 56 is locked as mentioned above, but the case where the auto-repeat lever 66 is also locked will be explained here.

In this case, as can be seen from the circuit diagram in FIG.
Since they are connected in parallel with the circuits of the switches S8 and S9, the solenoid 31 can be energized each time the remote control switches S and 3 are operated.

Therefore, the above manual repeat operation can be performed remotely. As described above, the present invention has a fast-feeding unit connected to a drive source such as a flywheel that is brought into selective contact with a supply reel stand and a take-up reel stand by means of a fast-feeding arm. The unit and the fast-forwarding arm can be used for both rewinding and fast-forwarding, which simplifies the structure and reduces dust caused by malfunctions.

[Brief explanation of drawings]

The figures show an embodiment of the drive mechanism of a tape recorder according to the present invention, in which Fig. 1 is a top view, Fig. 2 is a bottom view, Fig. 3 is a top view showing the locking mechanism of the magnetic head stand, and Fig. 4 is a top view. A side view showing the locking mechanism of the magnetic head stand, Fig. 5 is a cross-sectional view showing a part of the winding reel stand and auto-stop mechanism, Fig. 6 is a cross-sectional view taken along line W-W of the same as above, and Fig. 7 is the operating lever. FIG. 8 is a perspective view showing the operating lever and drive mechanism, FIG. 9 is a perspective view of the auto-stop mechanism, FIG. 10 is a perspective view of the drive transmission section, and FIG. 11 is a music select operation. A top view of the lever, Fig. 12 is a side view showing the operation of the bar when the music select is operated, Fig. 13 is a top view of the eject operating lever and auto repeat operating lever, and Fig. 14 is a top view of the eject operating lever and auto repeat operating lever. , FIG. 15 is an operational diagram of the eject operating lever and auto-repeat operating lever, FIG. 16 is an operational diagram of the reel stand stopping mechanism, and FIG. 17 is an operational diagram showing another embodiment of the reel stand stopping mechanism. Fig. 18 is an operational diagram showing another embodiment of the IJ-ru stand stop mechanism, Fig. 19 is a perspective view of the operating lever, and Figs. 20A to 20C are operational diagrams showing the relationship between the operating lever and the lock plate. , FIG. 21A to FIG. 21E are operation diagrams showing the relationship between each operating lever and the lock plate, FIG. 2 is a circuit diagram, FIG. 23 is an operation diagram at the intermediate position of the head stand, and FIG. 24 is a play operation diagram. Figure 25 is a diagram of fast forward operation, Figure 26 is a diagram of rewind operation, Figure 27 is a diagram of play pause operation, and Figure 28 is a diagram of play pause operation.
The figure is an auto-repeat operation diagram. 1... Chassis, 2... Head stand, 3... Pinch roller,
4...First flywheel, 6...Second flywheel, 7...Lock plate, 8...Cassette, 9...Supply reel stand, 10...Reel reel stand, 11 Counter ,
14...First arm for end detection, 15...Second arm for end detection, 1'17...Take-up unit, 18...Motor, 20...Set plate, 2
2...Biasing arm, 24...Control lever, 25...First gear, 25a...Occentric circular groove, 2
5c... Protrusion, 26... Second gear, 29.
...3rd gear, 29b...cam tooth, 29c.
... Cam plate, 30 ... Lock arm, 31 ... Solenoid, 32 ... Auto stop lever, 33 ... Play arm, 34 ... Rapid feed unit, 35 ...
・Fast forward arm, 38...Slide lever, 40...Lever arm, 42...Pause lever, 43...Pause lever lock plate, 44...Play lever, 45...Stop lever, 47...・Fast forward lever, 48・
... Rewind lever, 53 ... Recording lever, 56 ... Song interval detection lever, 57 ... Lock plate, 59 ... Control board, 60. ... Eject lever, 61 ... Suppose lever,
64...Lid body, 66...Auto repeat lever, 67...Repeat lock plate, 69...Repeat slide lever, 71...Reel stop plate. Cauldron 1 Figure 2 Figure 3 Book 4 Figure 5 Figure 6 Figure 7 Figure 08 Figure 9 Figure 0 Book! Figure 12! From Figure 13, Figure 14, Figure 15! Figure 6 - Figure 7 Figure 18 Figure 19 Figure Kanzu Gukei 8 Sailor Chicken 2lA Figure 21B Figure 21CFigure 210Figure 2IEFigure 22 Sentence 23Figure 24Figure 25Figure 26Figure 27Figure 28

Claims (1)

[Claims] 1 A fast-forwarding arm rotatably attached to the tip of the fast-forwarding lever and having a first spring tensioned between it and the chassis; a fast-forwarding unit with a spring tensioned thereon, which is in constant contact with the fast-forwarding arm; a winding located at the tip of the fast-forwarding arm, which rotates the fast-forwarding arm against the spring force of the first spring when operated; It is comprised of a return lever, first and second flywheels that are arranged close to each of the take-up reel stand and the supply reel stand and rotate in opposite directions to each other, and when the fast-forward lever is operated, the fast-forward arm moves together with the fast-forward lever. When the fast-forward unit is rotated to connect the first flywheel and the take-up reel stand via the fast-forward unit, and the rewind lever is operated, the fast-forward arm is moved against the spring force of the first spring. A drive mechanism for a tape recorder, characterized in that a fast-forward unit is rotated via a second spring, and a second flywheel and a supply reel stand are connected via the fast-forward unit.