JPS6014414B2 - Tape recorder drive mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention detects a tape signal during fast forwarding and rewinding,
This relates to the drive mechanism of a tape recorder that enters the play state when it detects an interval between songs, which is an unrecorded part.The purpose of this is to disable the locking of the play lever by operating the inter-track detection lever, and to play between songs during fast-forwarding or rewinding. To provide a drive mechanism for a table recorder which, when detected, unlocks the fast forward and rewind levers and moves the play lever to the play position to bring the play state into play.

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

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

The head stand has a guide slot 2c through which the pin la passes through, 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 on a support pin ld implanted in 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 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. Reference numeral 4 denotes a first flywheel which is supported pivotally by a bearing (not shown) formed on the chassis 1 and a presser plate 5 (Fig. 2) attached to the rear surface of the chassis, and its rotating shaft is connected to the capstan. It is 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 as a shield on the back surface of the chassis 1 is passed through, and an upward spring force is applied by a spring 7a. With the biased head stand lock plate (Figs. 3 and 4), the engaging portion 7b is engaged with the elongated hole lf bored in the chassis 1, and is rotated about this as a fulcrum. .

Also, this head stand lock plate 7 has a long hole 1g in the chassis.
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.

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

This winding roll stand 10' is iron-bonded to a bearing 13 which is supported on the shaft of the receiving plate 5, and a first end detection arm is connected between this bearing 13 and the winding roll stand 10. 14 and second arm 1
5 is inserted into the squad. The protrusion 14a formed on the first arm 14 is connected to the long hole 15a formed on the second arm 15.
It is fitted with iron. Further, a spring spring 16 is interposed between the first and second arms 14 and 15. Now, when the winding roll table 10 rotates, the first arm 14 is pressed against the winding roll table 10 side by the resilient spring 16, and the second arm 15 is pressed against the bearing 13 side. 1st, 2nd
A rotational force is applied to the arms 14 and 15 in the same rotational direction.

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

The rotating shaft 17c of this take-up pulley 17b protrudes from the chopper bar 17a, and can be interlocked with the rubber roller 10b of the above-mentioned take-up reel stand 10. Further, an engagement protrusion 17d is formed at the tip of the take-up lever 17a to be engaged with a supporting front end green 20c of a set plate 20, which will be described later.
A spring 17e is stretched between the shaft 1 and the chassis 1, and rotates the lever 17a clockwise. That is, the engaging protrusion 17d is pressed toward the supporting 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.

A set plate is slidably provided on the Futagawa chassis, and a projecting piece 20a supports the extension piece 3d of the pinch low unit 3 and the cassette installed state.
and a notch 2 into which one end of the lever arm 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 trailing edge 20d that is always in contact with a cam plate 29c, which will be described later.

Note that this set plate 2 spring 21 always applies a spring force in the forward direction. 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 supported by a shaft mounted on a chassis that supports a first gear 25, which will be described later. At this time, the other end comes into contact with the auto-stop lever 32, and the lever 32 is rotated counterclockwise.

Reference numeral 25 designates a first gear bearing on the chassis 1, and as shown in the back view of FIG. 9, an eccentric zero-circular register 25a is formed on the lower surface thereof, 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.
The narrowest groove portion 25a. It is located concentrically with the center of the A second gear 26 is fixed to a rotating shaft 27a of a pulley 27 bearing on the chassis 1, and is dovetailed with the first gear 25.

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

Further, on the upper surface of the third gear 29, cam teeth 29b and a cam plate 29c are integrally formed. 30 is the above cam tooth 2
This lock arm is pivotally supported on the chassis 1 and is engaged with the solenoid 9b, and the upper memory engagement is released when the solenoid 31 is energized and attracted.

Reference numeral 32 designates an auto-stop lever whose one end is attached to a stop lever 45, which will be described later, and a protrusion 32a provided on the lower surface of the auto-stop lever at its substantially center 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 centric 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 mated with the release protrusion 25d of the first gear 25. 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 engagement 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 engagement protrusion 32b is in a state along the outer circumferential wall of the cam base 25b. In any of the above cases, when the tape stops running and the take-up reel stand 10 stops rotating, the first arm 14 becomes free, so the biasing force applied to the auto-stop lever 32 is also removed. It disappears. Therefore, after the first gear 25 rotates and the engagement protrusion 32b passes through the narrowest groove 25a, it is located on its trajectory, so the protrusion 25c on the trajectory
engaged with. As a result, after the auto-stop lever 32 is pulled up, the shoulder portion 32c is brought into contact with and loosened from 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 approximately center portion is supported by the chassis 1, 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 other end of the play arm 33 and the chassis 1, and applies a rotational force to the play arm 33 counterclockwise. 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. Then, when the cassette 8 is installed, the cassette stand 2 moves forward for the reason given, and the control village 2f hits 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 rear edge 20d of the supporting rear edge 20d. 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 comes into contact with the large protrusion of the cam plate 29c, and the play arm 33 is rotated clockwise, so that the head stand 2 moves further forward and plays. Or 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/roller 33a is brought into contact with 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 special position. Reference numeral 34 denotes a fast-forward unit supported on the chassis, and the gear 9a of the above-mentioned supply reel stand 9 is mounted on the top surface of the unit.
Alternatively, a gear 34a that selectively meshes with the gear 10a of the winding roll stand IQ is provided.

The gear 34a is mounted on the upper end of a rotary shaft that is supported by the rapid feed unit 34, and the first and second flywheels 4, 6 are selectively brought into contact with the end of the rotary shaft. A rubber roller 34b is iron-bonded. Further, the fast-forwarding unit 34 is formed with a protruding piece 34c on the side that is in contact with a fast-forwarding arm 35, which will be described later, and a slide lever 38, which will be described later.
A protrusion 34d that is engaged with is formed. Reference numeral 35 denotes a fast-forwarding arm pivotally supported at 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 supports the tip of a rewind lever 48, which will be described later, and a hanging piece 35b that comes into contact with a bent portion 47c of the fast-forward lever 47. Numeral 38 is a slide lever having one end 38a guided by a guide pin provided in the chassis 1 and the other end guide piece 38b guided by a groove (not shown) drilled in the chassis. A step portion 38c that is supported by the protrusion 34d, and a projecting piece 38d that comes into contact with 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-forward arm 35 comes into contact with the protrusion 34c of the fast-forward unit 34, causing the fast-forward unit 34 to rotate clockwise. Therefore, the rubber roller 34b is in 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
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 is in contact with the second flywheel 6, and the gear 34a is in contact with the gear 9 of the supply reel stand 9.
The supply reel stand 9 rotates at high speed and rewinds the tape. The chassis support pin is in the center of the four rivers.
d, one end is pivotally supported by a play lever 44, which will be described later, and the other end is supported by a set plate 20.
It faces the inside of the notch 20b.

Note that the lever arm 40 is constantly applied with a rotational force toward the anti-Japanese temple by a spring 41. 42 is a pause lever guided by a guide groove 42a, and a notch groove 42b is provided at the tip to avoid the above-mentioned support pin ld.
is formed.

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 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 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 1 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 pivotally supported by a pin li provided on a mounting piece lh bent downward on the side surface of the chassis 1;
is a lock plate supported by a pin lj provided on the mounting piece lh, and is always rotated clockwise (first direction) by a coil spring 58.
A rotational force is applied to (Figure 2). and lock plate 5
One end of 7 is engaged with a protruding piece 56a of the song interval detection lever 56, and the end thereof 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. . Further, the lower end 56b of the song interval detection lever 56 is in contact with one end of the control plate 59. This control plate 59 is applied with a spring force by a coiled spring 60 in a clockwise direction (FIG. 19), that is, one end is pressed against the lower tip 56b of the song interval detection lever 56, and the end is pressed against the third lock plate 76. I am supported. 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 one end of the control plate 59 is positioned above the pawl 57a, the spring force of the coil spring 58 causes the lock plate 57 to be
The claw 57a and the control plate 59 are engaged and locked. On the other hand, to release the lock, by returning the song interval detection lever 56, the protrusion 56a rotates the lock plate 57 counterclockwise against the spring force of the winding spring 58.
9 will be separated. The eject lever 61 is supported by a pin 11 installed on a mounting piece 1M which is bent downward on the side surface of the chassis 1, and the eject lever 61 is supported by a pin LM installed on the same mounting piece lk. A first sub-eject lever that rotates against the spring force of a spring 62 stretched between the eject lever 60 and the mounting piece lk.
3 to 15 rightward), the lever 61 is also rotated rightward against the spring force of the coil spring 63 against the protrusion 61a of the sub-ject lever 61.

Due to this rightward rotation, the engagement section 64a of the lid 64 covering the cassette section, which was engaged with the brocade section 61b, is disengaged.
Therefore, the lid 64 is opened. Also, eject lever 6
0, the discussion bar 60 comes into contact 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 protruding piece 7e of the head stand locking plate 7 further protrudes from the lock elongated hole 2e of the head stand 2, and the engagement claw 7d is engaged with the lock elongated hole 2e by the operation of one end of the protruding piece 7e of the head stand locking plate 7.
lock in the first position. 66 is a pin 1 installed in a mounting piece ln newly curved downward on the side surface of the chassis 1.
The auto-repeat lever 67 supported by the auto-repeat lever 67 is also supported by a pin lp provided on the mounting piece ln, or is made into a beat-lock plate, and a spring 68 is placed between the auto-repeat lever 66 and the beat-lock plate 67. The protruding piece 66a of the auto-repeat lever 66 and the bent piece 67a of the beat lock plate 67 act in such a way that they are always in contact with each other.

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 the repeat slide lever 68, and a locking punch 69b is mounted on the 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 both directions by the spring 68, so that the lock village 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 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 engagement recess 67b is moved to the locking groove 69b. More detached. 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 L-shaped reel stand stop plate with one end pivotally supported on the chassis 1, and a pin 71a is provided at the end thereof to support the extension piece 3d of the pinch loaf unit 3 described above. ing.

A spring 72 is tensioned between this pin 71a and the chassis 1, and the pin 71a is always held on the extension piece 3.
It acts to support 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 1''-roll stand stop plate 71 are
It is engaged with the gear 10a of No. 0, and prevents the rotation of the winding roll table 10. 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.

That is, the central part is pivotally supported by the support pin ld on which the winding stop plate 73, which has a substantially doglegged shape, is attached, and one end is always in contact with the pin 2g of the head stand 2, and the other end is used for winding. Compatible with reel stands 10'. Therefore, the ejector lever 60
When the head stand 2 is moved backward, the pin 2g rotates the reel stand stop plate 73 counterclockwise, and its 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. As another embodiment, as shown in FIG. 18, a part of the head stand lock plate 7 is extended to form a stop piece 7f, and an engagement projection 7 is formed at the tip of the stop piece 7f.
A plurality of vertical holes 10d are provided in the winding roll table 101.

This allows the eject lever 60 to be operated to remove 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 pressed against the surface of the winding reel stand 10, and finally the vertical hole 10d is filled with iron. Ru. 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. Therefore, the first ′.

The 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, since a gap is formed between the stepped portions 75a and 76a of the second and third lock plates 75 and 76 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 copper portion 76b formed by a rising inclined surface 760 and a vertical surface 760 extending from this, and the locking piece 44a' of the play lever 44
6b to lower the 30th hook plate 76 and engage with the vertical surface 76b2 after passing the inclined surface 760.

The 20th check plate 75 has a descending force control capital 75b formed by an ascending slope 750, a steeply descending slope 75Q connected thereto, a descending slope 75Q, and a vertical surface 75b4 connected thereto. , and the lock piece 44 of the play lever 44
a is not engaged with the descending amount control portion 75b, and the protrusion 4
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 rising slope 75c
, and the descending slope 75c2 and vertical surface 7 that follow this.
5c3, and the height of the top thereof is the same as the height to the top of the other descent amount control part 75b. The lock release piece 45a of the stop lever 45 is 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
Then, the third lock plate 76 also lowers and, if locked, 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 rising inclined surface 740, the descending inclined surface 74Q connected thereto, and the vertical surface 74 have a pot portion 74b formed therein, and the locking pieces 47a and 48a of the fast forwarding lever 47 and the rewinding lever 48 are connected to the rising slope 74Q. Inclined surface 740, descending inclined surface 7
4Q and the vertical surface 74 is engaged with the piece part 47a,
, 48a. Further, the first lock plate 74 has a hooked portion 74c formed by the inclined surface 74c and a vertical surface 74c2 connected thereto, and the lock piece 53a of the recording lever 53 slides against the inclined surface 74c. 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.

And this slider/77 has a lock piece 44a of the player/144 and a lock piece 4 of the fast forward lever 47.
7a, a sloped portion 77 is provided at a portion corresponding to the lock piece 48a of the rewind lever 48 and the lock piece 53a of the recording lever 53;
a is provided, and no matter which lever is pressed, the slide lever 77 moves in the direction against the spring force of the spring 78. Note that the slide lever 77 has an inclined surface 7.
A known recording lever blocking plate (not shown) that prevents the recording lever 53 from being operated when other operating levers are being operated is provided opposite to the recording lever 7a. FIG. 22 shows a circuit diagram, where S, is a power switch, S2 is a timer switch that is normally open when the timer is not operated, and remains open until the set time is reached when the timer is operated, and S3 is a switch control slide lever 77. S4 is a switch that is closed when it slides, S4 is a switch that is engaged when the auxiliary lever 49 is moved by operating the fast forward lever 47 and rewind lever 44, S5 is a switch that is closed when the second lock plate 75 is lowered, and S6 is a play arm. 33 is a switch that is involved when the slide lever 38 slides, S7 is a switch that is closed when the repeat slide lever 69 is slid, and S8 is a stop lever 4.
5 is a switch that is closed when operated, S9 is a switch that is closed when the slide lever 38 is slid, and S. o is a switch that is closed when the recording bar 53 is operated, S, . S. is a switch that is closed when the auxiliary lever 49 moves. 2, S, and 3 are remote control switches that are not shown in the mechanism diagram in the figure.
2 is a switch that is closed when performing a play operation, S, 3 is a switch that is closed when a stop operation is performed, S, 4 is a memory switch not shown in the mechanism diagram, and S, 5 is a counter switch that is closed when the count of the counter 11 reaches 999. be.

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 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. 3 stops.

At this time, the pinch roller 3a and the capstan 4a are not in contact with each other (FIG. 23). When the play lever 44 is pushed in this state, the brocade portions 44a and 44' of the lock piece 44a' are engaged with the bridge 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 18 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 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 punch 2f of the head stand 2. Therefore, the head stand 2 moves into the stopper elongated hole 2d. further advances until it abuts against pin lb. On the other hand, since the supporting front edge 20d of the set plate 20 corresponds to the small flap part 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 ITd of the take-up unit 17 is regulated by the bale rear end green 20c.
moves following the abutting rear end green 20c by the spring 17e.

As a result, the rotating shaft 17c on which the lever 17a is rotated is brought into contact with the rubber roller 10b of the winding roll stand 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 operation 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 plate 76 are pushed down.
The lever arm 4, which will be described later, is disengaged from the lock plate 76.
It is returned by 0'. Further, the lock release piece 45a of the stop lever 45 closes the switch S8. On the other hand, since the play arm 33 is 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 gear 26 are engaged with each other. As a result, the third gear 29 is approximately 1
Since it rotates 80 degrees, the play arm 33 returns to its original position. Therefore, the play arm 33 comes into contact with the control village 2f, and the head stand 2 is returned to the intermediate position. On the other hand, set plate 20
is pulled against the spring force of the spring 21, so that the supporting rear edge 20c pulls the take-up unit 7 against the spring 1.
It resists the imitating force of 7e and returns to its original state. 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 lobe unit 3, so that the unit 3 is rotated and the pinch roller 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 gold phrase part 61b and the engagement village 64a of the lid body 64 is released. .

Therefore, the lid 64 is rotated, and the cassette 8 is released from the head stand 2. Further, as the head stand 2 moves, the engaging claw 7d is pushed down by the back surface of the head stand 2,
When the end face of the lock elongated hole 2e passes through, it faces into the elongated hole 2e, so when the ejector 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 copper portion 53a of the lock piece 53a is engaged with the gold phrase 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 moves back, so the pinch roller 3a is pressed against the capstan 4a. is,
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 hook 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 its gear 34a changes to the gear 10a of the winding reel stand 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 tenth 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 its gear 34a and Gear 9 of supply reel stand 9
a are meshed with each other. Further, the rubber roller 34b is pressed against the second flywheel 6. On the other hand, when the rewind lever 48 is pushed, the lock piece 48a moves the slide lever 77, so the switch S3 is closed and the motor 81 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 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 advances to the recording/playback position, and the winding reel stand 1 moves forward to the recording/playback position.
0 is rotating, the first and second arms 1 for end detection
4 and 15 are provided with rotational force in the same rotational direction as the winding roll table 10.

Therefore, the auto-stop lever 32 engaged with the first arm 14 is also given a rotational force in the same direction, and the engagement protrusion 32b provided at the tip of the auto-stop lever 32 engages with the eccentric circular groove 25a of the first gear 25.
is pressed against the outer peripheral wall of the On the other hand, the first gear 25 is engaged with the second gear 26, and since the belt 28 is wound between the second gear 26 and the first flywheel 4, the first gear 25 is rotating. Therefore, the first gear 25 is rotated with the engagement protrusion 32b pressed against the outer peripheral wall, and is not engaged with the engagement protrusion 32b and the protrusion 25c. When all of the tape has been wound up and the rotation of the take-up IJ roll table 10 has stopped, the engaging protrusion 32b is pressed against the outer peripheral wall.
Since the external force is removed, the engagement protrusion 32b is held at its trajectory position after passing through the narrowest groove 25a.

Since the protrusion 25c is located on this trajectory, the first gear 2
5, the engagement protrusion 32b is engaged 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 first gear 2
5, the shoulder 32 of the auto stop lever 32
c 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 winding reel stand 10' is rotating at high speed in the same direction as in the play state.

Therefore, the engaging protrusion 32b is connected to the eccentric circular groove 25a of the first gear 25.
is pressed against the outer peripheral wall of the Then, when the rotation of the winding reel stand 10 stops, the engaging protrusion 32b and the protrusion 25c are engaged by the same operation as described above, and the following operation is the same as that during play and recording, so a description thereof 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 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 winding reel stand 1 is rotating at high speed in the opposite direction to the play state.

Therefore, since the auto-stop lever 45 is given a rotational force in the opposite direction to that in the above case, the engagement protrusion 32b is pressed against the cam base 25b in the eccentric circular groove 25a of the first gear 25. As a result, while the take-up reel stand 10 is rotating, the first gear 25 is rotated with the engagement protrusion 32b in pressure contact with the cam stand 25b. Then, when the rotation of the winding reel 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 new 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 is attached to the rubber of the winding roll table 10. The winding roll stand 10 is separated from the roller 10b and stops rotating. 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 corresponding to 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.
Support 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 diameter 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, so the biasing lever 22 will not be affected in any way. No external force is applied to the auto-stop 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, and the gear 34a is engaged with the take-up IJ roll table 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 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 rotary roller 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. Further, even if the tenth locking plate 74 is lowered, the third locking plate 76 does not lower, so the play lever 44 is moved to the third locking plate 76. remain locked. Note that since the set plate 20 does not allow the lever arm 44 to be rotated, the lever arm 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 take-up 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 (the switch S3 is closed because the second lock plate 75 is lowered, and the switch S3 is closed because the slide lever 77 is moved), and therefore the solenoid 31 is energized. As a result, the cam plate 29c rotates and the arm lever 3
3 is rotated, the head stand 2 is placed in the recording/reproducing position, the set plate 20 is moved, the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17c is pressed against the rubber roller 10a of the winding roll stand 10. be done. Therefore, it returns to the pre-state again. When the rewind lever 48 is pressed in the review operation play state, the fast forward arm 35 is rotated and pulls the fast forward unit 34 via the spring 37. Therefore, the gear 34a and the gear 9a of the supply reel stand 9 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 switch S is moved by the auxiliary lever 49.
, , are closed (the switch S9 is closed by the slide lever 38), the solenoid 31 is energized. As a result, the head stand 2 returns to the intermediate position in the same way 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 disengages from the gear 9a of the supply V-supply reel stand 9, and the rubber roller 34b moves to the second position. flywheel 6
The rewind state is released when the distance is further away.

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

However, the play lever 44 is held in a locked state as in the cue and review operations described above. Note that the second lock plate 75 of the rewind lever 48 is connected to the play lever 44.
By being 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 8 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 table feed lever 35, so the fast feed lever 35 is rotated and the spring 37 The fast forwarding unit 34 is rotated via the . Therefore, Gya 34
a is meshed 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 the is in the intermediate position, the switches S, -S6 are closed, and the stop lever 45 is pulled and the second lock plate 75 is closed.
Since the switch S5 is closed by being lowered, the solenoid 31 is energized. Therefore, play arm 3
3 is rotated, the head stand 2 advances to the recording/reproducing position, and the set plate 20 moves forward, so that the pinch roller 3a and capstan 4a are pressed together, and the rotating shaft 17c and the take-up reel stand 10 are pressed together. The rubber roller 10a is brought into contact with the rubber roller 10a.
Furthermore, since the slide lever 38 is advanced by the rotation of the play arm 33, the stepped portion 38c is
4, and rotates the fast-forwarding unit 34 a little to release the gear 34a from the gear 9a of the supply reel stand 9 and separate the rubber roller 34b from the second flywheel 6. Therefore, it becomes a play state. When the set plate 20 moves forward, the bar arm 40 is rotated, so the play lever 44 is pulled and locked by the third lock plate 76, so that it can be seen from the outside that the 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 pressed against each other, resulting in a rewinding state. Similar to the entrusted operation below, 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). (closed), so the solenoid 31 is energized. Therefore, the play arm 33 is rotated, the head stand 2 is moved back to the intermediate position, and the set plate 20 is moved forward, so that the pinch roller 3a 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 feed unit 34, so that the fast feed unit 34 rotates so that the gear 34a is adjacent to the gear on the supply reel stand 9, and the rubber roller 34b is moved to the second gear. 2 is connected to the flywheel 6.
Therefore, the user is returned to the 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 pot portion 74b.

Further, the slide lever 38 moves forward in front of the fast-forwarding lever 47, closing the switch S9, and the auxiliary lever 49 also moves forward, causing the switches S, . is closed, sole/ide 3
1 is energized. Therefore, the head stand 2 retreats to the intermediate position by the same action as when the stop lever 45 is pressed during the play action in the auto-repeat action described above, and the pinch roller 3a is moved from the capstan 4a to the rotating shaft 17c.
are separated from the winding reel table 10, respectively. Since the fast-forwarding lever 47 is pressed, the fast-forwarding arm 35 moves and pushes the protrusion 34c of the fast-forwarding unit 34 to rotate the fast-forwarding unit 34. Therefore, the gear 34a is engaged with the gear 10a of the winding roll table 10, and the rubber roller 34
b is brought into pressure contact with the first flywheel 4 and enters 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
9, but 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. 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 operated state only by the lever arm 40'. In this playback state, for example, the rewind lever 48
When the lever 48 is operated, the lever 48 is locked to the tenth hook plate 74 and the reproducing state is changed to the winding state. Since the song interval detection lever 56 and the rewind lever 48 are operating, the song interval detection circuit MS works and when a song interval (no signal period) on the tape is detected, the play lever 44 moves the lever arm 40.
is pulled in, lifts the second lock plate 75, and locks the first lock plate 75.
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 closed. 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
The main force is closed, and the play lever 44 is pushed again, causing the second lock plate 7 to close.
5 is lowered, the switch S5 is closed, and since the head stand 2 is in the intermediate position, the switches S4 and S6 are closed. Therefore, the play is started by an operation similar to the above-described play operation, and when the tape ends, the automatic stop operation is performed and the play is stopped. Remote Control Operation Mechanism When a remote control switch S, 2 provided at a location not shown in the drawings is pressed, the motor 18 is energized, the second gear 27 is rotated, and the first gear 25 is rotated.

However, since it is not in a recording state or in a fast forward or rewind state, neither the supply reel stand 9 nor the take-up reel stand 10 rotates, and an 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 S5 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 moves forward to the recording/reproducing position, 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 rubber roller of the take-up reel stand 10. - Supported by La1ob. Therefore, the play state is established, and the play lever 44 is pulled by the lever arm 40. However, due to this time-song interval detection lever 56, the third
Since the lock plate 76 is lowered, the lock piece 44a'
and the third lock plate 76 are not engaged. Therefore, the play lever 44 remains pulled only by the arm lever 40. Then, when the remote control switches S, 3 are closed, the remote control switches S, 2 are in the play state even if the remote control switches S, 2 are opened, so S3 is closed. Therefore, since the solenoid 31 is energized, the head stand 2 returns to the intermediate position, the pinch roller 3a separates from the capstan 4a, and the rotating shaft 17c separates from the rubber roller 10. Also, the arm lever 40 is used to return the bar 44 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 the counter 11 to zero and turn the play lever 44.
When locked, the above-mentioned operation becomes a play operation. If it is desired to open the playback section again, the stop lever 45 is operated to perform the above-described stop operation to bring the playback to a stop state. Next, the rewind lever 48 is locked and the tape is rewound by the above-described rewind operation.
When the counter 11 is reversed and reaches 999, the counter switch S,5 is closed, and the slide lever 77 is closed.
Since the head stand 2 is in the intermediate position and the switch S6 is closed, the solenoid 31 is energized. As a result, the play arm 33 is rolled out, 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.
The rotating shaft 17c is connected to the rubber roller 1ob of the winding roll table 10. Therefore, the play state is entered, and the play lever 44 is moved forward by the bar arm 4 and locked. Note that the rewind lever 48 is unlocked. Eject operation during rotation of the winding roll table 10
When the eject lever 60 is rotated by the driving force of the motor, that is, during recording, play, or fast-forward operation, the eject lever 60
When operated, the head stand 2 is moved back to the final position and the cassette 8 is ejected from the reel stands 9 and 10.

However, in this state, the winding reel stand 10' continues to rotate due to the driving force of the motor, so the device continues to operate. Therefore, as shown in FIGS. 16 to 18, the eject lever 6 is
When 0 is operated, the winding roll table 10 is forcibly stopped, and the apparatus is stopped by the above-described auto-stop operation. That is, in the embodiment shown in FIG. 16, the winding reel stand 10 is stopped by the return of the pinch loaf unit 3, in FIG. 17 by the retreat of the head stand 2, and in FIG. 18 by the ejection of the cassette 8. . Remote control operation in auto-repeat operation The remote-control operation does not operate unless the song interval detection lever 56 is locked as mentioned above, but the case where the auto-repeat lever 66 is also locked will be explained here.

In this case, as can be seen from the circuit diagram in FIG. 22, the remote control switches S, 3 are connected in parallel with the circuits of switches S4, M, S6, and the circuits of switches S8, S9, respectively. Solenoid 3 every time you operate
1 can be energized.

Therefore, the above manual repeat operation can be performed remotely. As described above, the present invention disables the locking of the play lever by operating the song interval detection lever, enables the locking of the fast forward and rewind levers, and enables the locking of the play lever by operating the song interval detection lever. When the lever is also unlocked, the play lever moves to the play position and is held there, resulting in the play state.
Moreover, at this time, the play lever is moved to the play position and held, so that the same effect as in normal play can be observed.

[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 reel stand and the auto-stop mechanism, and FIG. 6 is a bottom view showing a part of the take-up reel 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
19 is a perspective view of the operating lever, FIGS. 20A to 20C are operating diagrams showing the relationship between the operating lever and the lock plate, and FIG. 21
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... 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...First arm for detecting end machine,
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...Eccentric circular groove, 2
5c... Protrusion, 26... Second gear, 29... Third gear, 29b... Cam tooth, 29c... Cam plate, 30... Lock arm, 31 ...Solenoid, 32...Auto stop lever, 33...
・Play arm, 34...Fast forward unit, 3
5... Rapid forward arm, 38... Slide lever, 40... Lever arm, 42... Pause lever, 43... Pause lever lock plate, 44... Play lever, 45...・...stop lever, 47...
Fast forward lever, 48...Rewind lever, 53...
...Recording lever, 56...Song interval detection lever, 57
... Lock plate, 59 ... Control board, 60 ... Eject lever, 61 ... Subject 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 2 Figure 3 Figure 4 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 204 Figure 20 Figure 20C Figure 21A Figure 2 Old figure 21C Figure 2LD Figure 2IE Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28

Claims (1)

[Claims] 1 Even if the play lever is operated by operating the song interval detection lever, the play state is not locked, and the fast forward and rewind levers are locked, and when the play lever is moved to the play position by the operation described later, both levers are not locked. The lock plate is released, the head stand is moved to an intermediate position during fast forwarding or rewinding, and the head stand is further advanced to the recording/playback position during playback, the pinch roller is pressed against the capstan, and the take-up reel stand is connected to the drive source. A play mechanism is operated by an electric signal, and when a song interval is detected during fast forwarding or rewinding, a signal is sent to the play mechanism.The play mechanism is operated by the song interval detection signal from the fast forwarding or rewinding mechanism. A drive mechanism for a tape recorder comprises a play lever playback position holding mechanism that holds the play lever at the playback position.