JPS6014415B2 - Tape recorder drive mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a song interval detection lever in a tape recorder that detects the song interval during rewinding and sets the playing state. To provide a drive mechanism for a tape recorder that prevents a play lever from locking while being held, and automatically releases the holding state when the song interval detection lever itself is returned.

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 as positioning of the cassette) on the chassis 1, and an erasing head 2a, an eraser Head 2b is attached.

The head stand has a guide slot 2c through which the pin la is inserted, a guide slot 2c through which the pin lb is inserted, and a pin l.
A stopper elongated hole 2d into which the lock plate 7b is inserted and a lock elongated hole 2e into which an upright piece 7c of the lock plate 7, which will be described later, is inserted are formed. Further, lc is a pin for positioning the cassette.
3 is a pinch low unit equipped with a pinch roller 3a, which is rotatably supported by a support pin LD provided on the chassis, and is also supported by a spring 3b to the side of a capstan 4a, which will be described later. It is energizing.

Further, the unit 3 is formed with a protruding piece 3c that abuts against the head stand 2, and an extension piece 3d that abuts on a protruding piece 20a of a set plate 20, which will be described later. 4 is a first flywheel 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.

6 is a second flywheel supported on a bearing (not shown) formed in the chassis 1; 7 is a second flywheel that is supported by a pin le provided on the back surface of the chassis 1, and is pushed upward by a spring 7a; Force-energized head base lock plate (
3 and 4), the engaging portion 7b is engaged with the innermost hole lf bored in the chassis 1, and is rotated about this hole lf.

In addition, this head stand lock plate 7 has a chassis with a hole of 1g.
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 spring force of a, the engagement claw 7d disengages 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, the third and fourth In the figure, it moves to the right, and in FIG. 1, it moves upward.

Reference numeral 9 denotes a joint reel stand rotatably supported by 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) provided on a support plate 5, and as shown in FIG. A rubber roller 10b is formed at the bottom of the rubber roller 10b, and a belt groove 10e is formed below the belt groove 10e in which a belt 12 is wound between the rubber roller 10b and a counter 1 fixed above the chassis 1.

This winding roll stand 1 is iron-bonded to a bearing 13 that is supported on the shaft of the third river receiving plate 5, and between this bearing 13 and the winding roll stand 10 is a first arm 14 for end detection. and a second arm 15 are inserted. The protrusion 14a formed on the first arm 14 is connected to the three elongated holes 1 bored in the second arm 15.
An iron is inserted into 5a. Also, the first and second arms 14,1
A bullet 16 is interposed between 5 and 5. Now, when the winding roll table 10 rotates, the spring 16 causes the first arm 14 to move toward the winding roll table 410 side, and the second arm 1
5 are pressed against the bearing 13 side, so that the first
, a rotational force is applied to the second arms 14 and 15 in the same rotational direction.

Note that the first arm 14 is equipped with an auto-stop lever, which will be described later.
A bifurcated piece 14b is formed to be engaged with the 32 protrusions 32a. 17 is a take-up unit, one end of which lever 17a is supported by the chassis 1, and a take-up pulley 17b is supported approximately at the center.

The rotating shaft 17c of this take-up pulley 17b projects from the lever bar 17a and can slide against the rubber roller 10b of the take-up roll stand 10 described above. Further, an engagement protrusion 17d is formed at the tip of the take-up lever 17a to abut against a contact front edge 20c of a set plate 20, which will be described later.
A spring 17e is tensioned between the shaft 1 and the chassis 1 on the pivoted side, and rotates the lever 17a clockwise. In other words, the second projection 17d is pressed toward the supporting front end green 20c side of the set plate 20. 18 is a motor, and a belt 19 is wound around the pulley 18 via a take-up pulley 17b, a second flywheel 6, and a first flywheel 4.

Reference numeral 20 denotes a set plate slidably provided on the chassis 1, and a projecting piece 20a that comes into contact with the extension piece 3d of the above-mentioned pinch low unit 3 when the cassette is installed.
and a defective part 2 into which one end of the lever arm, which will be described later, is inserted.
0b, an abutting front end green 20c that is always in contact with the engaging protrusion 17d of the take-up unit 17, and an abutting rear edge 20d that is always in contact with a cam plate 29c, which will be described later.

Note that this set plate 20 is always biased with a forward force by a spring 21. Alternatively, the other piece of the biasing arm 22 is always supported by the cam plate 29c. Reference numeral 24 denotes a control lever supported on a shaft installed in the chassis 1 that supports a first gear 25 (to be described later), and one end of which is connected to a hanging piece when the biasing arm 22 is rotated counterclockwise. 22a and is rotated clockwise, and at this time, the other end comes into contact with the auto stop lever 32, and the lever 32
Rotate counterclockwise.

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

The protrusion 25c is connected to the eccentric cam base 25b and the eccentric circular groove 25a.
It is formed so as to be located concentrically with the middle of the narrowest groove portion 25a formed by the outer peripheral wall of the groove portion 25a. A second gear 26 is fixed to a rotating shaft 27a of a pulley 27 bearing on the chassis 1, 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. 29 is a third gear supported on the chassis 1 and engaged with the second gear 26.
The gear has two notches 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. Cam tooth 2 above 3 rivers
This lock arm is pivotally supported on the chassis 1 and 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 is engaged with the bifurcated piece 14b of the first arm 4.

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 reel table 10 rotates in the tape winding direction, that is, in the direction of the arrow, the resilient spring 1
Since the first arm 14 is pressed against the take-up roll stand 10 side by 6, a rotational force in the direction of the arrow is also applied to the first arm 14.

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 mating protrusion 32b is brought into a state along the outer circumferential wall of the eccentric circular groove 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 mating protrusion 32b is in a state along the outer peripheral 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 is supported by the release protrusion 25d of the first gear 25, and the engagement between the engagement protrusion 32b and the protrusion 25c is released. Reference numeral 33 designates a play arm whose substantially center portion is pivotally supported by the chassis, and a roller 33a is provided at one end, which corresponds to the cam plate 29c of the third gear 29 described above.

A spring 33c is stretched between the other end of the play arm 33 and the chassis, and applies a rotational force to the play arm 33 in the opposite direction. Therefore, the roller 33a is always in contact with the cam plate 29c. Further, the other end of the play arm 33 corresponds to a control village 2f protruding from the lower surface of the head stand 2. 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 the standby 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 abutting rear end edge 20d of . As a result, the second gear 2
The notch 29c 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 rubs against the large light portion of the cam plate 29c, and the play arm 33 is rotated clockwise, so that the head stand 2 moves further forward for playback or 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 fast-forwarding unit that is pivotally supported on the chassis 1, and a gear 34a that selectively engages with the gear 9a of the supply reel stand 9 or the gear 10a of the take-up reel stand 10 is provided on the upper surface of the unit. .

The gear 34a is iron-bonded to the upper end of a rotary shaft that is supported by the rapid feed unit 34, and the lower end of the rotary shaft is selectively brought into contact with 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 comes into contact with 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 denotes a fast-forwarding arm that is supported on the tip of a fast-forwarding lever 47, which will be described later, and springs 36 and 37 are stretched between the chassis 1 and the fast-forwarding unit 34.

Further, the fast-forward arm 35 is formed with an upright piece 35a that comes into contact with 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 17c of the fast-forward lever 47. Numeral 38 is a slide lever having one end 38a guided by a guide pin provided on the chassis 1 and a guide piece 38b at the other end guided by a groove (not shown) bored in the chassis 1. A step portion 38c that abuts against the protrusion 34d, and a projecting piece 38d that abuts against the hanging piece 33b of the play arm 33 are formed.

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 fast-forward lever 47.
Move forward while in contact with the

As a result, the fast-forwarding arm 35 comes into contact with the protrusion 34c of the fast-forwarding unit 34, and the fast-forwarding unit 34 is rotated 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 36. Therefore, the rubber loaf 34b comes into contact with the second flywheel 6, and the gear 34a is engaged with the gear ga of the supply V-supply reel stand 9, so that the supply reel stand 9 rotates at high speed and rewinds the tape. Reference numeral 40 denotes a lever arm whose substantially center portion is supported by a support pin ld of the chassis 1, one end of which is supported by a play lever 44 which will be described later, and the other end of which faces into the notch 20b of the set plate 20.

Note that a counterclockwise rotational force is constantly applied to the lever arm 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 above-mentioned support pin ld.

The pause lever 42 can be engaged with and detached from a pause lever lock plate 43 which 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 punch 42c is released, and the lock plate 43 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 is a fast forwarding lever that has a lock piece 47 and is guided by a guide groove 47b, and 48 is a rewind lever that has a lock piece 48a and is guided by a guide groove 48b. The tip of the fast-forwarding lever 47 is attached to an auxiliary lever 49.

Spring force is always applied to this auxiliary lever 49 and the fast forward and rewind levers 47 and 48 toward the front (downward in the figure) by springs 50 to 52. 53
The recording lever 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 42, 44, 47,
48 and 53 are supported between the chassis and a guide plate (not shown) at the rear of each lock piece, and therefore, the other levers except the play lever 44 are supported at two places, the guide groove and the guide plate. It is designed to move in a straight line. Reference numeral 56 denotes a song interval detection lever supported by a pin li provided in a shield on a mounting piece lh newly bent downward on the side surface of the chassis 1; 57;
is a locking plate supported by a pin li provided on the mounting piece lh, and is always rotated clockwise (the first
A rotational force is applied to (Figure 2). and lock plate 5
One end of the lock plate 7 is engaged with a protruding piece 56a of the song interval detection lever 56, and the other end is formed with a claw 57a that engages with one end 59a of a control plate 59 that controls the rotation of a third lock plate 76, which will be described later. There is. Further, the lower tip 56b of the song interval detection lever 56 is connected to one end of the control plate 59. This control plate 59 is applied with a spring force in a clockwise direction (FIG. 19) by a coiled spring 60', 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 76. is assigned to. 11 and 12, the song interval detection lever 56 is rotated (rotated clockwise in FIG. 12).
(two-dot chain line)] Then, the lower tip 56b rotates the control plate 59 counterclockwise (FIG. 19) against the spring force of the coiled 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 (FIG. 19). 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 11 that is shielded from a mounting piece lk bent downward on the side surface of the chassis 1, and 61 also a mounting piece 1k'.
The eject lever 60 is turned around against the spring force of the spring 62 stretched between it and the mounting piece lk, using the sub-eject lever supported by the pin lm provided in the shield.
(to the right in FIGS. 13 to 15), the bar 61 comes into contact with the projection 61a of the sub-ject lever 61 and is similarly 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 64 covering the cassette portion, which was engaged with the hook portion 61b, to disengage.
Therefore, the lid 64 is opened. Also, eject lever 6
0, the lever 60 cooperates with the 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 projecting 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 these pieces, and the head stand 2 is first Lock in position. Reference numeral 66 indicates an auto-repeat lever which is supported by a pin 1 which is attached to a mounting piece ln bent downward on the side surface of the chassis 1, and 67 which is supported by a pin lp which is also provided in a frame on the mounting piece ln. A spring 68 is stretched between the auto repeat lever 66 and the IJ beat lock plate 67, and the protrusion 66a of the auto repeat lever 66 and the bending plate 67a of the beat lock plate 67 are always in place. It is acting to support.

Reference numeral 69 is a beat slide lever that is interposed between the chassis 1 and the head stand 2 and is movable in the front and back direction (left and right in FIGS. 13 to 15), and is always pushed backward (rightward in the figures) by a spring 70. power is given.

A hanging piece 69a is formed on the right side of this repeat slide lever 68, and a lock village 69b is provided as a shield on this hanging piece 69a. When the auto repeat lever 66 is pushed forward (to the left in the figure), the lever 66 comes into contact with the protrusion 69c of the repeat slide lever 69, moving the lever 69 to the left.

Further, when the auto repeat lever 66 rotates, the repeat lock plate 67 is also rotated in the same direction by the spring 68, so that the lock member 69b is engaged with the engagement recess 67b of the repeat lock plate 67, and the repeat slide lever 69 is rotated.
Move and hold the state. On the other hand, the auto repeat bar “6”
6 is returned to the rear (to the right in the figure), 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 therefore the engaging recess 67b is moved into the locking punch. Leave from 69b. As a result, the repeat slide lever 69 is moved to the right by the spring 7 and returns to its original position. In FIG. 16, reference numeral 71 denotes a substantially F-shaped reel stand stop plate with one end supported on the chassis 1, and a pin 71a abutting on the extension piece 3d of the above-mentioned pinch low unit 3 is provided at the other end. ing.

A spring 72 is tensioned between the pin 71a and the chassis, and the pin 71a is always held on the extension piece 3.
It acts in tandem with d. Furthermore, a tooth portion 71b that can mesh with the gear 10a of the take-up reel table 10 is formed on the top of the reel table stop plate 71. Therefore, when the eject lever 60 is operated now, the head stand 2 is moved backward, and the pinch loaf unit 3 is rotated clockwise, so that the pin 71a is pushed by the extension piece 3d of the unit 3. Therefore, the teeth 71b of the reel stand stop plate 71 are connected to the winding reel stand 10.
The gear 10a is engaged with the gear 10a, and the rotation of the J-reel 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, by placing the wheel stand stop plate 73 in the shape of a letter 2
The central portion is supported by the vehicle on a supporting pin ld, and one end is always in contact with a pin 2g of the head stand 2, and the other end corresponds to the winding reel stand 10'. 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 in the counterclockwise direction 2, and the tip is pressed against the gear 10a of the winding reel stand 10. 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 7f3, and an engaging protrusion 7g is provided at the tip of the stop piece 7f3. Platform 1 River vertical hole 1
A plurality of 0d are provided.

This allows the eject lever 60 to be operated to eject the cassette 8.
is removed and the head stand lock plate 7 is returned to its original state by the spring 7a, the engagement protrusion 7g of the stop 3 plate 7f is pressed against the back surface of the winding roll stand 10, and finally the vertical hole 10d
Iron is inserted inside. Therefore, the rotation of the winding reel table 10 is stopped. In FIGS. 19 to 21, reference numerals 74, 75, and 76 denote first to third lock plates that are each pivotally supported by a shaft 77 that is pivotally connected to the chassis 1, and each of which is held in a horizontal state by a coil spring (not shown). There is.

The first lock plate 74 has lock pieces 47a, 48a, and 53a formed on the fast forward lever 47, the rewind lever 48, and the recording lever 53, and the second lock plate 75 has lock pieces 47a, 48a, and 53a formed on the fast forward lever 47, the rewind lever 48, and the recording lever 53. One of each lock piece 45a and 44a formed on the 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. Further, the first lock plate 74 has a stepped portion 75a formed at an end adjacent to the second lock plate 75, corresponding to the stepped portion 76a of the third lock plate 76. Thus, the first lock plate 74 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 third locking plate 76 has a metal 0 part 76b formed by an ascending inclined surface 76b and a perpendicular surface 76Q extending from the ascending inclined surface 76b, and the locking piece 44a' of the play lever 44 is connected to the inclined surface 76b and a metal part 76b. It has fishing portions 44a,' which are engaged with the vertical surface 76b2 after touching the third locking plate 76 and lowering the third locking plate 76 and past the inclined surface 76b.

The second lock plate 75 has an ascending slope 75bl, a steeply descending slope 75Q connected thereto, and a twilling downward slope 75.
It has a vertical surface 75b4 connected to this, and a lowering amount control portion 75b formed by the locking piece 4 of the play 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 20th 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 rising neck slope 75c
, and the descending slope 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 descending force control part 75b. Then, the lock release piece 45a of the stop bar 45 is not engaged with the lowering amount control portion 75c,
A protrusion 45a is formed. And unlock piece 4
5a passes through the top, the first lock plate 74
The 30th lock plate 76 also descends, and if locked, it is released. The first lock plate 74 corresponds to the lock pieces 47a and 48a of the fast forward lever 47 and the rewind lever 48,
The ascending inclined surface 740, the descending inclined surface 74Q connected thereto, and the vertical surface 74 have a hook portion 74b formed therein, and the locking pieces 47a and 48a of the fast forwarding lever 47 and the rewinding lever 48 are arranged as shown above. Ascending slope 740, descending slope 7
Fishing portion 47a that slides into contact with 4Q and is engaged with vertical surface 74G,
, 48a. Further, the first lock plate 74 has a hook portion 74c formed by the above-mentioned inclined surface 74c and a vertical surface 74c2 connected thereto, and the lock piece 53a of the recording lever 53 slides against the upper storage slope 74c. Vertical surface 7
4c2. 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 C-lock piece 53a of the recording lever 53, so that the slide lever 77 is moved by the spring 78 no matter which lever is pressed. Move in the direction that resists the spring force. 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 closed 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. S7 is a switch that is opened when the slide lever 38 slides due to rotation of the arm 33, S7 is a switch that is closed when the repeat slide lever 69 is slid, and S8 is a stop lever 45.
S9 is a switch that is closed when the slide lever 38 is slid.
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 moves; S, 2, S, 3 are remote control switches that are not shown in the mechanism diagram;
closes when performing a playing motion, and S. Reference numeral 3 indicates a switch that is closed when the stop operation is performed, reference numerals S and 4 indicate memory switches not shown in the mechanical diagram, and reference numerals S and 5 indicate counter switches that are closed when the count of the counter 11 reaches 999.

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 motors and solenoids. Next, the operation will be explained based on the above configuration. Playing operation When the cassette 8 is first placed on the head stand 2, the protruding piece 7e of the lock plate 7 is pressed downward, so that the engagement claw 7d and the lock elongated hole 2e of the head stand 2 are disengaged.

Accordingly, the head stand 2 moves forward until the control punch 2f provided on its lower surface comes into contact with 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 pressed in this state, the copper portions 44a, ′ of the lock piece 44 are moved to the third position.
It is engaged with the fishing portion 76b of the lock plate 76.

Further, 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 slide lever 77 is further moved 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 18 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 flanges of the cam plate 29c come into contact with the rollers 33a of the play arm 33, and thereby the play arm 33 rotates and separates from the control area 2f of the head stand 2. Therefore, the head stand 2 moves into the stopper elongated hole 2d. Continue moving forward until it touches pin lb. On the other hand, the set plate 20 is pulled by the spring 21 because the support front end green 20d corresponds to the small diameter portion of the cam plate 29c, 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 bale rear end green 20c.
is moved by the spring 17e to follow the trailing edge green 20c.

As a result, the lever 17a is rotated, and the rotating shaft 17c is supported by the rubber roller 1ob of the winding roll stand 10. Therefore, since the take-up pulley 17b is rotated by the belt 19, the take-up reel table 10 is rotated (FIG. 24). As described above, the rotation of the motor 8 rotates the winding reel 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 stop operation, the second lock plate 75 is pushed down by the lock release piece 45a, so the second lock plate 76 is further pushed down, and therefore the lock piece 44 of the play lever 44 and the third lock plate 75 are pushed down. The engagement with the lock plate 76 is disengaged, and the lever arm 4, which will be described later, is returned to its original position. 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 force 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 18
Since it rotates by 0 degrees, the play arm 33 returns to its original position. Therefore, the play arm 33 comes into contact with the control punch 2f, and the head stand 2 is returned to the intermediate position. On the other hand, since the set plate 20 is pulled against the spring force of the spring 21, the rear end green 20c of the bale moves the take-up unit 7 to the spring 17.
It is returned to its original state against the spring force of e. 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 low unit 3, so that the unit 3 is rotated and the pinch roller 3a is moved to the capstan 4.
It is controlled by a. As mentioned above, the winding reel stand 10
The rotation of the pinch roller 3a stops, and the pinch roller 3a
As the distance increases, 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 retracting, and the engagement between the fishing part 61b and the engagement groove 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 elongated hole 2e, 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.
When 3 is pressed, the copper portion 53a of the lock piece 53a is engaged with the fishing portion 74c of the first lock plate 74.

When the recording lever 53 is pressed, the switch S,. is closed, and a recording circuit (not shown) is activated. Further, the lock piece 53a of the recording lever 53 moves the slide lever 77, so the switch S3 is closed. Therefore, the motor 8 operates and the solenoid 31 is energized, so the head stand 2 moves forward in the same manner as in the play state described above, and the set plate 20 moves backward, so that the pinch roller 3a is connected to the capstan 4a. Pressure-welded,
Further, the rotating shaft 17c is connected to the rubber roller 10 of the winding roll stand 10.
b. Therefore, the tape runs, and recording begins (FIG. 24). Note that the play lever 44 is pulled by the arm lever 40' 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 hook 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 the fast-forwarding arm 35 pushes the protruding 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 fishing 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 fast forward arm 35 are rotated. It meshes with the gear 9a of the V-supply reel stand 9. 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 the rotational 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 zero spring force of the spring 36, the rapid feed arm 35
The fast forwarding unit 34 is also returned 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 moves forward to the rekey position and the take-up roll 0 unit 10 is rotating, so the first and second end detection The two arms 14 and 15 are provided with rotational force in the same rotational direction as the winding roll table 10.

Therefore, the auto stop lever 32 that is 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 is engaged with the first gear 25.
It is pressed against the outer peripheral wall of 5a. 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 engaging protrusion 32b
The first gear 25 is rotated while being pressed against the outer peripheral wall,
The engaging protrusion 32b and the protrusion 25c are never mated. When all of the tape has been wound up and the rolling of the winding reel table 10 has stopped, the external force that was pressing the engagement protrusion 332b against the outer peripheral wall is removed, so that the engagement protrusion 32b is at its narrowest 4mm.
After passing through the twilling portion 25a, 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. Further, after the engagement protrusion 32b and the protrusion 25c are engaged, the shoulder portion 3 of the auto stop lever 32 rotates as the first gear 25 rotates.
2c comes into contact with the release protrusion 25d of the first gear 25, the engagement protrusion 32b 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 take-up reel stand 10 is rotating at high speed in the same direction as in the play state.

Therefore, the engagement protrusion J32b is located at the eccentricity 25 of the first gear 25.
It is pressed against the outer circumference of a. And the winding reel stand 10
When the rotation stops, the engaging protrusion 32b and the protrusion 25c are brought together by the same operation as described above, and since the following operation is the same as that during play and recording, the explanation of Z will be omitted. Note that even if the stop lever 45 is pulled and the switch 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 mating protrusion 32b being pressed against the cam stand 25b. Then, when the rotation of the winding reel stand 10 is stopped, the engagement protrusion 32b is connected to the narrowest groove portion 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 and recording As described above, during play and 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, allowing the take-up unit 17 to rotate. As a result, the rotating shaft 17c separates from the rubber roller 10b of the take-up reel stand 10, and the rotation of the take-up reel stand 10 is stopped. That is, the state is the same as when the tape has stopped running in the play and record states described above, but here, the biasing arm 22 is rotated by the spring force of the spring 23, and the control lever 2 is rotated.
Rotate 4. Therefore, the auto-stop lever 32 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 inserted into the eccentric circular groove 24.
Place it on the outer peripheral wall of a. As a result, while the first gear 25 is rotating, the engagement protrusion 35b and the protrusion 25c are not engaged, that is, the playing or recording state is not stopped (FIG. 27). Auto-stop operation during fast forwarding or rewinding During fast forwarding or rewinding, the head stand 2 is in an intermediate position and the winding reel stand 10 is rotating at high speed.

Even if the pause lever 42 is pressed here, since the large light part of the cam plate 29 is in contact with the set plate 20 and the biasing lever 22, both levers 20 and 22 will not be affected in any way, and therefore the biasing lever 22 will automatically stop. No external force is applied to the lever 32. That is, the auto-stop operation is performed by an operation similar to the above-mentioned auto-stop operation 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 304 is rotated via the fast forward arm 35, and the gear 34a is engaged with the winding reel stand 10 and the gear 10a.
Also, the rubber roller 34b is brought into pressure contact with the first flywheel 4.

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, and the pinch roller 3a is separated from the capstan 4a.
And the rotating shaft 17c is the rubber roller 1 of the winding-0 roll stand 10.
Leave 0a. Therefore, the winding roll table is rotated at high speed until it reaches a fast-forward state. Furthermore, even if the first lock plate 74 descends, the third lock plate 76 does not descend, so the play lever 4
4 remains locked to the third lock plate 76.
Note that the set plate 20 prevents the lever arm from being rotated by four degrees, so the play lever 44 is never returned. When the hand is released from the fast-forwarding lever 47, the fast-forwarding arm 35 returns, the fast-forwarding unit 34 also returns, the gear 34a is disengaged from the gear 10a of the pick-up roll stand 10, and the rubber roller 34b is separated from the first flywheel 4. The fast forward state is canceled.

Furthermore, as the fast-forward lever 47 returns, the slide lever 38 and the auxiliary lever 49 return, so the switches S6 and S4 are closed (the switch S5 is closed because the second lock plate 75 is lowered, and the switch S3 is closed). Since the slide lever 77 is moving (closed), the solenoid 31 is energized. As a result, the cam plate 29c rotates, the arm lever 33 is rotated, the Z head stand 2 is returned to the green position, the set plate 20 is moved, the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17c is rotated. It is assisted by the rubber roller 10a of the take-all stand 10. Therefore, it returns to the pre-state again. 2 Review Operation When the rewind lever 48 is pressed in the play state, the fast forward arm 35 is rotated and pulls the fast forward unit 34 via the spring 37;
Since the protrusion 34d contacts the stepped portion 38c of the slide lever 2-38, the gear 34a and the gear 9a of the supply reel stand 9 do not mesh with each other.

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 auxiliary lever 493 is activated to switch S, . is closed (switch S9 is
(closed), so the solenoid 31 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 moves away from the capstan 4a3, and the rotating shaft 17c moves toward the take-up reel stand 10.
away from the rubber roller 10a. Also play arm 33
By rotating, the engagement between the protrusion 34d of the fast-forwarding unit 34 and the stepped portion 38c of the slide lever 38 is disengaged. The fast forwarding unit 34 further rotates, and 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, forming an unwinding machine. When the rewind lever 48 is released, the fast-forward arm 35 and the fast-forward unit 34 return to their original states, the gear 34a is disengaged from the gear ga of the supply reel stand 9, and the rubber roller 34b is moved to the second flywheel. 6, the rewinding state is released.

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 that the recording lever 53 and the first 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 lowered by the lock piece 48a, the lock 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 auto repeat lever 66 moves the repeat slide lever 69 forward, 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 to rotate the fast-forwarding unit 34. Therefore, Gya 34
a is meshed with the gear 9a of the supply reel stand 9, and the rubber roller 34b is brought into pressure contact with the second flywheel 6, resulting in a rewinding state. When all of the tape has been rewound and the rotation of the winding reel table 10 has stopped, 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 this is the intermediate position, the switches S4 and S6 are closed, and the stop lever 45 is pulled and the second lock plate 75 is lowered to close the switch, so that the solenoid 31 is energized. Therefore, the play arm 33 is rotated, the head stand 2 is advanced to the new position, and the set plate 20 is moved forward, so the pinch roller 3a
and the capstan 4a are pressed against each other, and the rotating shaft 17c and the rubber roller 10a of the winding roll table 10 are brought into contact with each other. Furthermore, the slide lever 38 is rotated by the rotation of the play arm 33.
is advanced, the stepped portion 38c pushes the protrusion 34d of the fast-forwarding unit 34, rotates the fast-forwarding unit 34 a little, and releases the meshing between the gear 34a and the gear 9a of the supply reel stand 9, and at the same time, the rubber roller 34b and the second flywheel 6
Let go of. 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 76 is rotated.
It is possible to know 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 compressed to be in a rewinding state. Thereafter, in the same way as the above-mentioned operation, when the rewinding is completed, the play operation is started and becomes an auto-repeat operation.
Auto-repeat operation during recording operation When the auto-repeat lever 66 is locked during the recording operation, the recording operation is performed without being rewound 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, after the winding is performed by the same operation as the auto-repeat operation in the above-described play operation, the play state is entered. 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 play arm 33 is rotated clockwise, the switch S8 is closed (switch S7 is closed 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). 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 and the rotating shaft 17c are separated from the capstan 4a and 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-forwarding unit 34, so that the fast-forwarding unit 34 rotates, the gear 34a is engaged with the gear on the supply reel stand 9, and the rubber roller 34b is moved to the second It 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.
It is engaged with the gold phrase part 74b of.

In addition, as the desk feed lever 47 moves forward, the slide lever 38
moves forward, switch S9 closes, and auxiliary lever 49
Since the motor moves forward and the switch S, , is closed, the solenoid 31 is energized. Therefore, the head stand 2 is moved back to the intermediate position by the same operation as when the stop lever 45 is pressed during the play operation in the entrusted auto-repeat operation.
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 meshed with the gear 10a of the winding roll table 10, and the rubber roller 3
4b is brought into pressure contact with the first flywheel 4, resulting in a fast-forwarding state. If the stop lever 45 is pressed in this table feeding state, the play operation is shifted to 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 5 Z6b
rotates the control plate 59 counterclockwise against the spring force of the coiled 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, 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 pawl 57a of the lock plate 57 to touch the control plate 59. are engaged and locked. Further, the switch 2 Ps is turned on by the rotation of the song interval detection lever 56. Next, when the play lever 44 is operated, the tape enters a playback state and starts running. Note that at this time, since the third lock plate is pressed down by the control plate 59, the play lever 44
is not locked and is held in the second operating state only by the lever arm 40'. For example, when the rewinding lever 48 is operated in this playback state, the lever 48 moves to the first locking plate 7.
4 and transitions from the playback state to the winding state. Since the song interval detection lever 56 and the rewind lever 48 are operating, the song interval detection circuit 3MS is activated and the song interval (
When a no-signal period is detected, the play lever 44 is pulled in from the lever arm 4, lifts up the second lock plate 75, releases the rewind lever 48 locked to the first lock plate 74, and shifts to the playback state. and play the desired recorded portion. 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 open, and since the recording lever 53 is moving, the switch S,. 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 tape 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, play is started by an operation similar to the play operation described above, and when the tape ends, the tape is stopped by an auto-stop operation. 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 not in the mirror replay state or in the fast forward or rewind state, neither the supply reel stand 9 nor the take-up reel stand 10 rotates, 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 in the evening due to the auto-stop operation and the switch is closed (at this time, since the head stand 2 is in the intermediate position, the switches S4 and -S6 are also closed)
, the solenoid 31 is energized. Therefore, play arm 3
3 rotates, the head stand 2 advances to the recording/reproducing layer 0, the set plate 20 is pulled forward, the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17c is moved to the winding reel stand 1.
0's rubber roller 1ob. Therefore, the play state is reached, 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 with each other. Therefore, the play lever 44 remains pulled only by the arm lever 40. 0 and remote control switch S,
3 is closed, S3 is closed because it is in the play state even if the IJ control switch S, 2 is opened.

Therefore, the solenoid 31 is energized, so the head stand 2 returns to the intermediate position, and the pinch roller 3a is moved to the capstan 4a.
The rotating shaft 17c is made of rubber. away from the controller 10b.
Moreover, the arm lever 401 causes the play lever 44 to return to its original state. 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 counter 1 to zero and turn play lever 4.
When 4 is locked, the above-mentioned action becomes a play action. 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 7 is closed.
7 has moved and the switch S3 is closed, and 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 green 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 to the winding position. Rubber roller 1ob of reel stand 10
This will be supported. Therefore, the play state is reached, and the play bar 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
Eject lever 6 is rotated by the driving force of the motor, that is, during recording, playback, or fast forwarding
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 table 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 reel stand 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 the pinch loaf 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 described 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, in the present invention, when the song interval detection lever is operated, the lock plate that locks the play lever moves to an unlockable position and the song interval detection lever itself is also locked, and when the song interval detection lever is returned, it is not locked. The play lever can be locked at the same time as the play lever itself is unlocked. Therefore, the song interval detection lever can be locked and released by itself, and the play lever can also be locked, so the structure is simple and can be manufactured at low cost. It has the following effects.

[Brief explanation of the drawing]

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 sectional view showing a part of the take-up roll stand and the auto-stop mechanism, and FIG. 6 is a bottom view showing a part of the take-up roll stand and the auto-stop mechanism. ,
Fig. 7 is a top view showing the operating lever and the drive mechanism, Fig. 8 is a perspective view showing the operating lever and the drive mechanism, Fig. 9 is a perspective view of the auto-stop mechanism, Fig. 10 is a perspective view of the driving force transmission part, Fig. 11 is a top view of the music select operating lever, Fig. 12 is an operational diagram showing the music select operating lever, Fig. 13 is a top view of the eject operating lever and the auto repeat operating lever, and Fig. 14 is a top view of the eject operating lever and the auto repeat operating lever. A side view of the repeat operation lever, Fig. 15 shows an operation diagram of the eject operation lever and auto-repeat operation lever, Fig. 16 shows an operation diagram of the reel stand stop mechanism, and Fig. 17 shows another embodiment of the reel stand stop mechanism. Operation diagram, No. 18
The figure is an operation diagram showing another embodiment of the reel stand stop mechanism.
Figure 9 is a perspective view of the operating lever, Figures 20A to 20C are operational diagrams showing the relationship between the operating lever and the lock plate, and Figure 21A.
Figures 21E to 21E are operation diagrams showing the relationship between each operating lever and the lock plate, Figure 22 is a circuit diagram, Figure 23 is an operation diagram at the intermediate position of the head stand, Figure 24 is a play operation diagram, and Figure 25 Figure 26 is a play pose operation diagram, Figure 26 is a rewind operation diagram, and Figure 27 is a play pose operation diagram.
The figure is a fast-forward operation diagram, and FIG. 28 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... Winding reel stand, 11.
...Counter, 14...1st for end detection
Arm, 15...Second arm for end detection, 17
......Take-up unit, 18...Motor, 20
...Set plate, 22...Biasing arm, 24...Control lever, 25...First gear, 25a...
Gutter 0 circular groove, 26c...Protrusion, 26...2nd
Gear, 29...Third gear, 29b...Cam tooth, 29c.
...Cam plate, 30 ... Lock arm, 31 ... Solenoid, 32 ... Auto stop lever, 33 ... Play arm, 34 ... Rapid feed unit, 35.
...Rapid forward arm, 38...Slide lever, 40...Shi/E 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, 5
7... Lock plate, 69... Control board, 60...
・Eject lever, 61...Supject lever,
64...Lid body, 66...Auto repeat lever, 67...
...Repeat lock plate, 69...Repeat slide lever, 71...Reel stop plate. Figure 1 Figure 5 Figure 6 Figure 2 Figure 3 Figure 4 Figure 7 Figure 8 Figure 13 Figure 9 Figure 10 Figure 11 Figure 12 Figure 14 Figure 15 Figure 16 Figure 17 Fig. 18 Fig. 19 Fig. 20N Fig. 20B Fig. 20C Fig. 21A Fig. 2 Old Fig. 2lC Fig. 2 ID Fig. 2 IE Fig. 22 Fig. 23. Figure 24 Figure 25 Grave 26 Figure 27 Figure Cauldron 28

Claims (1)

[Claims] 1. A lever lock plate that locks the playing state of the play lever, a control plate whose one end is engaged with the lever lock plate, and whose other end is in contact with the lower tip of the song interval detection lever described later and is pivotally supported at approximately the center; a spring that applies a spring force to the control plate on the side of the song interval detection lever; a song interval detection lever that rotates the control plate against the spring force of the spring when operated; one end of the song interval detection lever; A lock plate that is brought into contact with the protrusion and engaged with the control plate when the lower end pawl operates the song interval detection lever, and applies a spring force to the protrusion side of the song interval detection lever with respect to the lock plate. When the song interval detection lever is rotated, the control plate is rotated and the claw portion of the lock plate is engaged with the control plate, so that the lever lock plate and the play lever are not engaged with each other. A drive mechanism for a tape recorder, characterized in that when the track interval detection lever is held and the track interval detection lever is returned, the lock plate is returned by a protrusion and the engagement between the lock plate and the control plate is released.