JPS6014413B2 - cassette tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a cassette tape recorder, and its first purpose is to move the head stand forward and stop at an intermediate position by loading a cassette, and by operating a recording/playback lever. An object of the present invention is to provide a cassette tape recorder in which a head stand is further advanced to enter a recording/playback state.

A second object of the present invention is to provide a cassette tape recorder in which the transition from an intermediate position to a recording/playback state and the operation of pressing a pinch roller against a capstan are performed by a single mechanism using driving force from a motor. It's about doing.
A third object of the present invention is to provide a tape recorder that can perform auto-repeat playback at any position. An embodiment of the present invention will be described below 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 includes an erasing head 2a and a green refill. 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.
Reference numeral 3 denotes a pinch low unit equipped with a pinch roller 3a, which is rotatably supported by a support pin ld provided on a shield on the chassis 1, and is supported by a spring 3b to connect the pinch roller 3a to the side of a capstan 4a, which will be described later. is energized.

Further, the unit 3 is formed with a protruding piece 3c that comes into contact with the head stand 2, and an extension piece 3d that supports a protruding piece 20a of the set plate 20, which will be described later. Reference numeral 4 denotes 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.

Reference numeral 6 indicates a second flywheel supported by a bearing (not shown) formed in the chassis, and reference numeral 7 indicates a second flywheel, through which a pin le provided on the rear surface of the chassis 1 is inserted, and an upward spring force is applied by a spring 7a. With the head stand locking plate (FIGS. 3 and 4) 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 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 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) installed in 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 a counter 11 fixed above the chassis.

This winding roll table 1 is iron-bonded to a bearing 13 which is rotatably supported on the shaft of the winding plate 5.
The first arm 14 and the second arm 15 for end detection are connected between the
is inserted with iron. A protrusion 14a formed on the first arm 14 is inserted into an elongated hole 15a formed in the second arm 15. Further, a resilient spring 16 is interposed between the first and second arms 14 and 15. Note that the above counter 1
1 consists of an addition counter 11a and a subtraction counter lb, which are rotated by a belt 12 to perform addition and subtraction. 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 15 is pressed against the bearing 13 side by the spring motion 16. As a result, a rotational force is applied to the first and second arms 14 and 15 in the same rotational direction.

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

The rotating shaft 17c of this take-up pulley 17b protrudes from the chopper bar 17a and can rub against 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 ITa, and is supported by a contact front end green 20c of the set plate 20, which will be described later.
In addition, a spring 17e is stretched between the side on which the bag is supported and the chassis 1, and rotates the lever 17a clockwise. That is, the engaging protrusion 17d is pressed toward the front end green 20c 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 notch 2 into which one end of the lever arm described later is inserted.
0b, a front end green 20c that always comes into contact with the engaging protrusion 17d of the take-up unit 17, and a rear end green 20d that always comes into contact with a cam plate 29c, which will be described later.

Note that this set plate 20 is always biased forward by a spring 21. Alternatively, the other piece of the biasing arm 22 is always in contact with the cam plate 29c.
Reference numeral 24 designates a control lever that is pivotally supported on a shaft provided on the chassis 1 that pivotally supports a first gear 25, which will be described later. 22a and is rotated clockwise, and at this time, the other end contacts the auto-stop lever 32, causing the lever 32 to rotate counterclockwise.

Reference numeral 25 denotes a first gear bearing on the chassis, and as shown in the back view of FIG. 9, an oblique 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 oblique 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, and is meshed with the first gear 25.

Naofu. A belt 28 is wound between the belt 27 and the pulley 4b provided on the rotating shaft of the first flywheel 4. Therefore, when the first flywheel 4 is rotated, the second
The first gear 25 is rotated via the gear 26. 29 is a third gear that is pivotally supported by the chassis 1 and is engaged with the second gear 26, and is not engaged with the second gear 26 at two locations;
A notch 29a is formed.

Further, on the upper surface of the third gear 29, cam teeth 29b and a cam plate 29c are integrally formed. 30' is a lock arm pivotally supported on the chassis 1 which is engaged with the cam teeth 29b 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 three-moon-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 is formed at the tip of the auto-stop lever 32 to be engaged with the release protrusion 25d of the first gear 25. 9, when the take-up IJ-roll base 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 base 10 by the resilient spring 16. Therefore, the first arm 14 is also applied with a rotational force in the direction of the arrow.

Therefore, the protrusion 32a is engaged with the bifurcated piece 140.
A clockwise rotational force is applied to the toss stop lever 32. 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 winding table 10 supplies 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 in the direction, so that the engagement 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 25a, it is located on its trajectory, so that the protrusion 25 on the trajectory
c. As a result, 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 protrusion 32b and the protrusion 25c
The engagement with is released. Reference numeral 33 designates a play arm whose approximately center portion is 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.

Further, a spring 33c is stretched between the end of the play arm 33 and the chassis 1, and applies a rotational force to the play arm 33 in a counterclockwise direction. Hence the above. 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 punch 2f that projects 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 punch 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 meshing 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 is supported by the large diameter portion 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 brought into contact with the small diameter portion of the cam plate 29c, and the play arm 33 is rotated in the direction of the rebound indicator to return the head stand 2 to the waiting position. Reference numeral 34 denotes a fast-forwarding unit supported on the chassis, 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 its upper surface.

The gear 34a is iron-bonded to the upper end of a rotating shaft that is pivotally supported by the rapid feed unit 34, and the lower end of the rotating shaft is selectively engaged with the first and second flywheels 4 and 6. The rubber roller 34b is fastened. Further, the fast-forwarding unit 34 has a protrusion 34c formed on its side that supports a fast-forwarding arm 35, which will be described later, and a protrusion 34d, which is mated with a slide lever 38, which will be described later. Reference numeral 35 denotes a fast-forwarding arm 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 47c of the fast-forward lever 47. Reference numeral 38 designates a slide lever having one end 38a guided to a guide pin provided on the chassis 1 and a guide piece 38b guided to a groove (not shown) bored in the chassis 1, and connected to the protrusion of the fast-forwarding unit 34. 34d, and a protruding piece 38d that rests against the hanging piece 33b of the play arm 33 is 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 comes 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 contacts 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 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 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 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 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 protrusion 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 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. 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 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 levers other than the play lever 44 are supported at two places, the guide groove and the guide plate. It is supported and moves in a straight line. Reference numeral 56 denotes a song interval detection lever pivotally supported by a pin li provided on a mounting piece lh bent downward on the side surface of the chassis; 57;
is a locking plate pivotally supported by a pin lj set on the above-mentioned 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 by the coil spring 6 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 applied to the third lock plate. It is supported by 76. When the song interval detection lever 56 is rotated in FIGS. 11 and 12 (clockwise in FIG. 12 (double-dashed line)), the lower tip 56b applies the spring force of the winding spring 60 to the control plate 59. It is rotated counterclockwise (Fig. 19) against the

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 in the direction of the rebound indicator against the spring force of the winding spring 58 by returning the song interval detection lever 56, and therefore the pawl 57a and the control plate 59 are separated. Ru. Reference numeral 60 denotes an eject lever supported by a pin 11 mounted on a mounting piece lk bent downward on the side of the chassis, and 61 a sub-piece pivoted on a pin lm mounted on the mounting piece lk. eject lever
Then, when the eject lever 60 is rotated (toward the right in FIGS. 13 to 15) against the spring force of the spring 62 stretched between it and the mounting piece lk, the sub-ject lever 60 The lever 61 is also rotated to the right by contacting the protruding piece 61a of the lever 61 and against the spring force of the coiled spring 63.

As a result of this turning to the right, the engagement section 64a of the lid body 64 covering the cassette section, which was engaged with the fishing section 61b, is disengaged. Therefore, the lid 64 is opened. Further, as the eject lever 60 rotates, the lever 6 comes into contact with the auxiliary plate 65 attached to the head stand 2, and moves the auxiliary plate 65 to the right, thus moving the head stand 2 to the initial position. return. 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 pivoted on a pin 1 which is attached to a mounting piece ln bent downward on the side surface of the chassis 1, and 67 is an auto-repeat lever which is pivoted on a pin lp which is also attached to the mounting piece ln. A spring 68 is stretched between the auto repeat lever 66 and the beat lock plate 67.
The protruding piece 66a of the auto-repeat bar 66 and the bent piece 67a of the IJ 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 and the head stand 2 and is movable in the front-rear direction (left-right direction in FIGS. 13 to 15), and is always applied with spring force backward (to the right in the figures) by a spring 70. has been granted.

A hanging piece 69a is formed on the right side of this repeat slide lever 68, and a lock punch 69b is mounted on this hanging piece 69a. When the auto repeat lever 66 is pushed forward (to the left in the figure), the lever 66 hits 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.
to keep it moving. On the other hand, auto repeat lever 66
When it 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 against the lock punch 69b. More detached. As a result, the repeat slide lever 69 is moved to the right by the spring 701 and returned 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 that is in contact with the extension piece 3d of the pinch low unit 3 placed on the other end. It is provided.

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 so as to come into contact 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 loft 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.
gear 10a to stop the rotation of the take-up reel table lo. 17 and 18 are also conceivable as another means for forcibly stopping the winding roll table 10 when the electric lever 60 is operated.

In other words, the central part of the winding wheel stand stop plate 73, which has a substantially letter-shaped shape, is supported by the wheel on the above-mentioned support pin ld, and one end is always supported by the pin 2g of the head stand 2, and the end thereof is supported by the winding wheel. Compatible with 101 machines. Therefore, eject lever 6
0 and the head stand 2 is moved backward, the pin 2g rotates the reel stand stop plate 73 counterclockwise, and the tip is pressed against the gear 10a of the winding reel stand 10. As a result, the rotation of the winding reel table 10 is stopped. In another embodiment, as shown in FIG. 18, a part of the head stand locking plate 7 is extended to form a stop piece 7f, and an engaging protrusion 7g is provided at the tip of the stop piece 7f. 10 is provided with a plurality of vertical holes 10d.

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 piece 7f is brought into contact with the back surface of the winding reel stand 10, and finally the iron is inserted into the vertical hole 10d. be done. 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 each pivotally supported by a shaft 77 pivotally connected to the chassis, each of which is maintained in a horizontal state by a coil spring (not shown). .

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 twentieth 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 golden phrase part 76b formed by an upwardly inclined surface 760 and a vertical surface 76Q forming a lotus thereon,
Further, the locking piece 44a' of the play lever 44 slides into contact with the forehead slope 76b to lower the third locking plate 76, and after passing the slope 760, the locking piece 44a' engages with the vertical surface 76b2. have

The second lock plate 75 has a descending amount control portion 75b formed by an ascending slope 750, a steeply descending slope 75Q connected thereto, a twill descending slope 75, and a vertical surface 75b4 connected thereto. , and the lock piece 44 of the play lever 44
a is the protrusion 4 that is not engaged with the descending amount control portion 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 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 amount control part 75b. The lock release piece 45a of the stop lever 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 slope 740, the descending slope 74Q connected thereto, and the vertical surface 74 have a copper 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. Rising slope 740, descending slope 7
a hook portion 47a that is in fat contact with 4& and engaged with vertical surface 74&;
, 48a. Further, the first lock plate 74 has a golden phrase part 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 has the above-mentioned inclined surface 74c. It has a fishing portion 53a that is in sliding contact and engaged with the vertical surface 74c2. 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.

And this slide/ゞ17 7 is F. Lele/
A sloped portion 77a is provided at a portion corresponding to the lock piece 44a of the first 4, the lock piece 47a of the fast-forward lever 47, the lock piece 48a of the rewind lever 48, and the lock piece 53a of the recording lever 53. Even when the lever is pressed, the slide lever 77 moves against the spring force of the spring 78. The slide lever 77 is provided with a known recording lever blocking plate (not shown) that prevents the recording lever 53 from being operated when other operating levers are being operated, so as to face the inclined surface 77a. . 22nd
The figure shows a circuit diagram, S, is the power switch, S2 is the evening timer switch, which 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 the switch control slide lever 77 that slides. 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. Mi is a switch that is closed when the second lock plate 75 is lowered. S6 is a switch that is closed when the play arm 33 is moved. S7 is a switch that is closed when the repeat slide lever 69 slides, S8 is a switch that is closed when the stop lever 45 is operated, and S9 is a switch that is engaged when the slide lever 38 slides due to the rotation of the slide lever 38. is a switch that is closed when the recording lever 53 is operated, and S, o is a switch that is closed when the recording lever 53 is operated. 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 during stop operation, S, 4 is a memory switch for the addition counter la, which is not shown in the mechanism diagram, S
, 5 are counter switches that are closed when the count of the addition counter la reaches 999.

S, 6 is a subtraction counter lb memory switch, S
, 7 are counter switches that are closed when the count of the subtraction counter 11b 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 motor and solenoid. Next, the operation will be explained based on the above configuration.

Playing operation First, place the cassette 8 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 village 2f provided on its lower surface.
moves forward until it hits 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. 3 stops.

At this time, the pinch roller 3a and the capstan 4a are connected to each other (Fig. 23). When the play lever 44 is pushed in this state, the hooks 44a,' of the lock pieces 44a'
is engaged with the copper portion 76b of the third 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 2, 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 IJ 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. Due to the rotation of the third gear 29, the large diameter part of the cam plate 29c comes into contact with the roller 33a of the play arm 33, and thereby the play arm 33 rotates and separates from the control shaft 2f of the head stand 2. Therefore, the head stand 2 is moved to the stopper It moves further forward until the elongated hole 2d hits the pin lb. On the other hand, set plate 2 Kawama,
Since the front end green 20d of the bale corresponds to the small diameter portion of the cam plate 29c, it is pulled by the spring 21, so that 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 contact rear end green 20c.
moves following the abutting 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 take-up 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 play 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 44a' of the play lever 44 and the third lock are pushed down. The engagement with the 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 being rotated, the slide lever 38 that is in contact with it is pushed, opening the switch S6.
Switch S9 is closed. 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
The gear 26 is engaged with the gear 26. As a result, the third gear 29 rotates approximately 180 degrees, so that the play arm 33 returns to its original position. Therefore, the play arm 33 touches the control pestle 2f,
Return the head stand 2 to the intermediate position. On the other hand, set plate 2
0 is pulled against the spring force of the spring 21, the bale rear end green 20c returns the take-up unit 7 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 low unit 3, so that the unit 3 is rotated and the pinch low unit 3a is separated 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 8 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 copper portion 61b and the rear cover 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.
3, the hook 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 further forward by the same operation as in the play state described above, and the set plate 20 retreats, so that the pinch roller 3a is attached 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 lever arm 4 and engaged with the third lock plate 76. When the fast-forward lever 47 is pushed with the fast-forward operation cassette 8 loaded on the head stand 2, the lock piece 47a is engaged with the pot portion 74b of the first lock 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 part 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 pressed. Since the hook piece 47a moves the slide lever 77, 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 that 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 no longer adjacent to each other, and the rubber roller 34b is also separated from the first flywheel 4. Also, the slide lever 77 returns to switch S3.
is opened and becomes a stop state. Rewind operation When the rewind lever 48 is pushed with the cassette 8 loaded on the head stand 2.

The locking piece 48a is engaged with the copper portion 74b of the first locking 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 The gear 9a of the reel stand 9 is engaged with the gear 9a. Also, the rubber roller 34b is
It is pressed against the flywheel 6. On the other hand, rewind lever 48
When is pressed, the lock piece 48a moves the slide lever 77, so the switch S3 is closed and the motor 18 is energized. Therefore, the supply reel stand 9 is rotated in reverse at the rotational speed (FIG. 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 gears 34a and ga 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 mirror reposition, and the winding reel stand 1 moves forward.
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 zero-circle 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 mating protrusion 32b pressed against the outer ring, 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 moved to the narrowest groove part 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 45 is the same as pushing the stop lever 45, 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 take-up reel stand 10 is rotating at high speed in the same direction as in the play state.

Therefore, the protrusion 32b is the eccentric D circular groove 25a of the first gear 25.
It is directly attached to the outer peripheral wall of. 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 the operation during play and recording, so the explanation 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 is closed.
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 engaging protrusion 32b is heated by 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 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 mirror 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. In other words, the state is the same as when the tape has stopped running in the playing and recording states described above, but here, the biasing arm 22 is rotated by the spring force of the spring 23, and the control lever 2
4 is rotated. 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 inserted into the eccentric circular groove 24.
Abut against 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 part of the cam plate 29 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 automatically stopped. No external force is applied to the 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 reel stand 10 and the gear 10a, and the rubber roller 34b is moved to the first fly. Press it against the wheel 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 is rotated, 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 wheel 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. Furthermore, even if the first lock plate 74 descends, the third lock plate 76 does not descend, so the play lever 44 remains locked to the third lock plate 76. Incidentally, since the lever arm 40 is not rotated by the set plate 20, the lever bar 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, 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 mirror position, the set plate 20 is moved, the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17c is moved to the winding position. Reel stand 10
This is supported by the rubber roller 10a. Therefore, it returns to the playing 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, but at this time the protrusion 34d of the fast forward unit 34 touches the step 38c of the slide lever 38. Therefore, the gear 34a and the gear 9a of the coupled reel stand 9 are not meshed.

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 the slide lever 38), so the solenoid 31 is energized. As a result, the head stand 2 returns to the intermediate position at the same time 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 34 of the fast-forwarding unit 34 is rotated.
d 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. 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 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 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. If the auto-repeat lever 66 is locked when neither the auto-repeat mirror nor fast-forward nor 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 engaged with the gear 9a of the supply reel stand 9, and the rubber roller 34b is pressed against 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 compressed, and the rotating shaft 17c and the rubber roller 10a of the winding table 10 are supported. Further, the rotation of the play arm 33 causes the bar 38 to slide.
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 ga 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 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, 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 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.
is engaged with the fishing portion 74b.

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 operation as when the stop lever 45 is pressed during the play operation in the auto-repeat operation described above.
The pinch roller 3a is attached to the rotating shaft 17 from the carburetor stan 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 fast-forward state, the play operation is shifted to the play operation 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 rewind 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 rewind 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 the play lever 44 detects the lever arm 40'
The second lock plate 75 is pulled up, and the second lock plate 75 is pulled up.
The rewinding lever 48 locked to the lock plate 74 is released, the system shifts to the playback state, and the desired recorded portion is played back.
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 since the recording lever 53 has moved, the switch S,. is closed, and since the head stand 2 is in the intermediate position, the switches S4 and S6 are open. Therefore, recording is started by an operation similar to the recording operation described above, and the tape end is completed and 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, and the play lever 44 is pushed again, causing the 20th lock plate 75 to close.
is lowering, so the switch is closed, and head stand 2 is closed.
Since is in the intermediate position, 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 8 is energized, the second gear 27 is rotated, and the first gear 25 is rotated.

However, since it is neither in the regreening state nor in the fast forwarding or rewinding state, the supply reel stand 9 and the take-up reel stand 10 do not rotate, and the auto-stop operation is activated. To operate the remote control, first lock the song interval detection lever 56 and press the third lock plate 7.
6 is lowered. Then, when the stop lever 45 is pulled by the auto-stop operation and the switch is closed (since the head stand 2 is in the intermediate position at this time, the switches S4 and S6 are also closed), the solenoid 31 is energized. Therefore, the play arm 33 rotates, the head stand 2 advances to the recording position, the set plate 20 is pulled forward, and the pinch roller 3a is moved to the capstan 4.
a, and the rotating shaft 17c is brought into contact with the rubber roller 1ob of the winding roll table 10. Therefore, it becomes a play state,
And the play bar 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. And remote control switch S. When you close 3,
Even if the IJ control switch S, 2 is opened, it is still in the play state, so S3 is closed. Therefore, the solenoid 31 is energized, so the head stand 2 returns to the intermediate position, the pinch roller 3a separates from the capstan 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 operation mechanism using addition counter Press memory switch S, 4, which is not shown in the drawing.

Then, when the addition counter 11a is set to zero and the play lever 44 is locked, a play operation is performed by the above-described operation. If you wish to listen to what was just reproduced again, you operate the stop lever 45 and perform the above-described stop operation to bring it to a stop state. Then rewind lever 4
8 and rewinds the tape by the rewinding operation described above. Then, when the addition counter la is reversed and reaches 999, the counter switch S,5 is closed, and therefore the slide lever 77 is moved and the switch S3 is closed, and the head stand 2 is in the intermediate position and the switch S6 is closed. Since this is the case, 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 moved to the capstan 4a.
At the same time, the take-up unit moves in the same way as in the play operation described above, and the take-up reel table 10 starts rotating, thereby entering the play state. Memory by subtraction counter - Operation mechanism Press the memory switch S, 6, which is not shown in the diagram.

Then, a set button (not shown) is pressed to set the subtraction counter 11b to zero. When the tape is rewound with the tape set in this manner, the subtraction counter lb rotates in the addition direction. If the play lever 44 is locked here, the rewind lever 48 is unlocked, the rewind is completed, and the play operation is started. When the subtraction counter 11b rotates in the subtraction direction and exceeds the zero point, the counter switch S, 7 closes and drives the solenoid 31 via the switch 9. Then, the cam plate 29c is rotated, the arm lever 33 is rotated, and the head stand 2 is returned to the intermediate position, the pinch roller 3a is separated from the capstan, and the rotating shaft 17c is separated from the rubber loaf 10a of the winding reel stand 10. . Therefore, it becomes a stop state. Note that the set plate 20 prevents the lever arm 40 from being rotated, so the play lever 44
is maintained locked by the third lock plate 76. Therefore, to release the play lever 44, it is sufficient to push the stop lever 45. At this time, the head stand 2 is in the intermediate position, so the switch S9 is open and the solenoid 31
is not energized. Auto-repeat operation using addition/subtraction counters Addition counter 11a and subtraction counter 11b
Set them to the playback start and end positions, respectively, and press memory switch S, S, 6. If the auto-repeat lever 66 is locked when neither re-greening nor fast-forwarding nor rewinding is being performed, the switch S7 is closed and the motor 18 is operated. Then, in the same way as the auto-repeat operation described above, a rewinding state is entered. When the addition counter la exceeds zero, the counter switch S. 5 is closed and a play state is entered in the same way as the memory operation using the addition counter described above. At this time, the play lever 44 is pulled toward the set plate 20'. When the subtraction counter lb exceeds the zero point after the play state continues for a while, counter switches S and 7 are closed and switch S is turned on.
9, the solenoid 31 is energized. Therefore, the head stand 2 returns to the intermediate position by the same operation as above, but since the auto-repeat lever 66 is locked, when the play arm 33 rotates, the slide lever 38 moves forward, and the step 38c and the protrusion of the fast-forward unit 34 move forward. 34d is disengaged, and the fast-forwarding unit 34 is rotated and the gear 34a is disengaged.
and the gear 9a of the supply reel stand 9 are engaged, and the rubber roller 34b and the second flywheel 6 are pressed against each other, resulting in a rewinding state. Similarly to the above-mentioned operation, when the rewinding is completed, the play operation is started and becomes an auto-repeat operation. Note that during this auto-repeat operation, the play lever 44
is locked, but in the rewinding state, the switch 4 is opened by the auxiliary lever 49, so the solenoid 31 does not continue to be energized. To release the play lever 44, the stop lever 45 may be pushed in the same manner as described above. The cassette tape radar of the present invention described above has a cassette in which the head stand moves forward and stops at an intermediate position by loading a cassette, and when the green re-lever is operated, the head stand moves further to enter the recording and playback state. The tape recorder has an auto-repeat function for repeatedly rewinding and playing between tape ends, and triggers the movement switch S7 and the forward and backward movement of the head stand on the auto-repeat lever that activates the auto-repeat function. A switch S6, which is closed when the head stand is in the intermediate position, a series circuit of memory switches S, 4 of the adding counter 11a, counter switches S, 5, and the head stand is in the forward position. A parallel circuit of the switch S9 which is closed when the switch is closed, the memory switch S, 6 of the subtraction counter 11b, and the series circuit of the counter switches S, 7 is connected.

Therefore, by setting the addition/subtraction counter to an arbitrary position and operating the auto-repeat switch, rewinding and play operations can be repeated between them.

[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 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. Figure 7 is a top view showing the operating lever and drive mechanism, Figure 8 is a perspective view showing the operating lever and drive mechanism, Figure 9 is a perspective view of the auto-stop mechanism, and Figure 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 auto repeat operating lever, and Fig. 14 is a top view of the eject operating lever. and a side view of the auto-repeat operating lever, Fig. 15 is an operating diagram of the eject operating lever and auto-repeat operating lever, Fig. 16 is an operating diagram of the reel stand stop mechanism, and Fig. 17 is an operating diagram of the reel stand stop mechanism.
The figure is an operation diagram showing another embodiment of the reel stand stop mechanism.
FIG. 8 is an operational diagram showing another embodiment of the reel stand stop mechanism, FIG. 19 is a perspective view of the operating lever, FIGS. 20A to 20C are operational diagrams showing the relationship between the operating lever and the lock plate, and FIG.
Figures A 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 playing operation diagram, and Figure 25 The figure is a play pose operation diagram, Figure 26 is a rewind operation diagram,
FIG. 7 is a fast-forward operation diagram, and FIG. 28 is an auto-repeat operation diagram. 1... Seat, 2... Head stand, 3... Pinch. 4...First flywheel, 6...Second flywheel, 7...Lock plate, 8...Cassette, 9...
...Supply reel stand, 10...Take-up reel stand, 1
1a, 11b... Addition, subtraction counter, 14.
...First arm for end detection, 15...Second arm for end detection, 17...Take-up unit,
18...Mo-yu, 20...Set plate, 22...
...Biasing arm, 24...Control lever, 25
... 1st gear, 25a ... Eccentric circular groove,
25c...protrusion, 26...second gear, 29...third
Ga, 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... Execution lever, 61""" Sub-execution lever, 64.・・・
... Lid body, 66 ... Auto repeat lever,
67...Repeat lock plate, 69...Repeat slide lever, 71...Reel stop plate, S7...Auto repeat lever switch, S, 4, S, 6..."Memory switch, S, 6, S, 8... ”…Power Unter Switch, S6
, S9... Switch linked to the head stand. Figure 1 Figure 2 Figure 4 Figure 6 Figure 3 Figure 5 Figure 7 Figure 11 Figure 12 Figure 8 Figure 9 Figure 10 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Fig. 18 Fig. 19 Fig. 204 Fig. 20 Fig. 20C Fig. 21A Fig. 2 Old drawing Fig. 21C Fig. 2 ID Fig. 2 IE Fig. 22 Fig. 23 Fig. 24 Fig. 25 Fig. 26 Fig. 27 Fig. 28 Fig.

Claims (1)

[Claims] 1 A cassette tape recorder in which the head stand moves forward and stops at an intermediate position when a cassette is loaded, and the head stand advances further and enters recording and playback states when the recording/playback lever is operated, and It has an auto-repeat function to repeatedly perform rewind and play operations, and the head stand is connected to the A series circuit of a switch that is closed when it is in the intermediate position, a memory switch for an addition counter, and a counter switch, and a parallel circuit that is a series circuit for a switch that is closed when the headrest is in the forward position, a memory switch for a subtraction counter, and a series circuit for a counter switch. A cassette tape recorder having an auto-repeat function, characterized in that a cassette tape recorder is connected to a tape recorder.