JPS5939318Y2 - Lever mechanism for switch operation in tape recorder - Google Patents

Description

[Detailed description of the invention] The Kono invention relates to a switch operation lever mechanism for switching one switch later than the other switch when switching two switches in a tape recorder.

In tape recorders that enter the stop state by switching two switches when operating the stop lever to switch from an operating state such as fast forward or rewind to a stop state, the two switches are switched simultaneously, or If the switching order is reversed, an erroneous operation may occur, such as switching to another operating state, such as a playback state, instead of the stop state.

This idea was developed in view of the above points, and a spring force is applied to the lever for operating the switch at the beginning of the lever's movement so that it moves slowly, ensuring reliable switch switching. To provide a lever mechanism for switch operation in a tape recorder, which can effectively prevent malfunctions due to delay, and can quickly change to a different operation state since the switch is changed immediately after a certain delay time.

Next, an embodiment of this invention will be described with reference to the drawings.

1 is a chassis, 2 is a head stand that moves in the front and rear directions guided by a guide pin 1a and a stopper pin 1b (this pin 1b also serves as the positioning of the cassette) on the chassis 1, and has an erasing head 2a, a recording/playback head. Head 2b is attached.

The flat head stand has a guide slot 2c into which the pin 1a is inserted, a guide slot 2c into which the pin 1b is inserted, and a pin 1.
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, 1c is a pin for positioning the cassette.

Reference numeral 3 designates a pinch roller unit equipped with a pinch roller 3a, which is rotatably supported on a support pin 1d implanted in the chassis 1, and is moved by a spring 3b to the side of a capstan 4a, which will be described later. It is energizing.

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

Reference numeral 4 denotes a first flywheel which is supported by a bearing (not shown) formed on the shear 1 and a presser plate 5 (Fig. 2) attached to the back of the chassis 1, and its rotating shaft is connected to the cap. It is Stan 4a.

6 is a second flywheel supported by a bearing (not shown) formed in the chassis 1; 7 is a second flywheel through which a pin 1e implanted on the back surface of the chassis 1 is inserted, and is applied an upward spring force by a spring 7a; With the head stand locking plate (Figs. 3 and 4) energized, the engaging portion 7b is engaged with the elongated hole 1f bored in the chassis 1, and is rotated about this as a fulcrum. There is.

Also, this head stand lock plate γ 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 γe protruding from the lock elongated hole 2e is formed.

Therefore, when cassette 8 is set in figure 4 of money plan,
Since the protruding piece 7e is pushed down by the cassette 8 against the spring force of the spring 7a, the engaging claw 7d is disengaged from the lock elongated hole 2e of the head stand 2, and the head stand 2 is moved by the spring (not shown). forward by, i.e. the third
, 4, to the right, and FIG. 1, upwards.

Reference numeral 9 denotes a supply reel stand rotatably supported by the chassis 1, and a gear 9a is formed on the outer periphery.

Reference numeral 10 designates a take-up reel stand which is rotatably supported by a shaft (not shown) installed in the plate 5, and as shown in FIG. A belt groove 10e is formed in the lower part of the rubber roller 10b, into which a belt 12 wound between the rubber roller 10b and a counter 11 fixed above the chassis 1 is fitted.

This take-up reel stand 10 is fitted into a bearing 13 which is rotatably supported by the shaft of the plate 5, and this bearing 13 and the take-up reel stand 1
0 and the 17th arm 14 for end detection and the second arm 15.
is inserted.

A projection 14a formed on the first arm 14 is fitted into a long hole 15a formed in the second arm 15.

Also number 1. A resilient spring 16 is interposed between the 27th and 14th and 15th arms.

When the entire take-up reel stand 10 rotates, the spring 16
The first arm 14 is moved to the take-up reel stand 10 side, and the second arm 14 is moved to the take-up reel stand 10 side.
Since the arms 15 are pressed against the bearing 13 side, the first. A rotational force in the same rotational direction is applied to the 27th arm 14°15.

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, and its lever 11a
One end is pivotally supported by the chassis 1, and a take-up pulley 17b is pivotally supported approximately at the center.

The rotation shaft 17c of the pick-up pulley 17b projects from the lever 17a and can come into sliding contact with the rubber roller 10b of the take-up reel stand 10 described above.

Furthermore, an engagement protrusion 17d is formed at the tip of the pick-up lever 17a, and the engagement protrusion 17d comes into contact with a contact front edge 20c of a seven-piece plate 20, which will be described later. The lever 17a
is rotating clockwise.

That is, the engaging protrusion 17d is pressed toward the abutting front end edge 20c of the set plate 20.

Reference numeral 18 denotes a motor, and a belt 19 is wound around the pulley 18 via a pick-up pulley 1γb, 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 pinch roller unit 3 described above when the cassette is installed.
and a notch 2 into which one end of the lever arm described later is inserted.
0b and the engaging protrusion 1 of the take-up unit N7 described above.
A front abutting edge 20c is always in contact with the cam plate 7d, and a rear abutting edge 20d is always in abutting 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 supported by a shaft installed in the chassis 1 that supports a first gear 25, which will be described later, and one end of which is connected to a hanging piece when the biasing arm 22 is rotated counterclockwise. 22a and is rotated clockwise, and at this time, the other end abuts the auto-stop lever 32 and rotates the lever 32 counterclockwise.

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

The protrusion 25c is connected to the eccentric cam base 25b and the eccentric circular groove 25a.
It is formed so as to be located concentrically with the middle of the narrowest groove portion 25a1 formed by the outer peripheral wall of the groove portion 25a1.

26 is a rotating shaft 27 of the pulley 2T bearing on the chassis 1.
The second gear is fixed to a and is meshed with the first gear 25.

Note that a belt 28 is wound around the pulley 27 and a pulley 4b provided on the rotating shaft of the first flywheel 40.

Therefore, when the first flywheel 4 is rotated, the second gear 2
6, the first gear 25 is rotated.

29 is a third gear that is pivotally supported by the chassis 1 and meshes with the second gear 26, and has two notches 29a that do not mesh with the second gear 26.

Further, on the upper surface of the third gear 29, cam teeth 29b and a cam plate 29c are integrally formed.

A lock arm 30 is pivotally supported on the chassis 1 and is engaged with the cam teeth 29b, and the engagement is released 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 at 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 the first gear 2 is located at the tip of the auto stop lever 32.
A shoulder portion 32c is formed to be engaged with the release protrusion 25d of No.5.

When the take-up reel stand 10 rotates in the tape winding direction, that is, in the direction of the arrow in FIG.
Since the first arm 14 is pressed against the take-up reel stand 10 side, 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 engaging protrusion 32b is connected to the eccentric circular groove 2 of the first gear 25.
It will be in a state along the outer peripheral wall of 5a.

Furthermore, when the take-up reel stand 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 rotates in the opposite direction. A force is applied, so that the engagement protrusion 32b is in a state along the outer circumferential wall of the cam base 25b.

Even in the above example, when the tape stops running and the take-up reel stand stops rotating 100 times, the first arm 1
4 is in a free state, so the auto stop lever 32
The biasing force that had been applied to will also disappear.

Therefore, after the first gear 25 rotates and the engagement protrusion 32b passes through the narrowest groove portion 25a1, it is located on the trajectory thereof and is engaged with the protrusion 25c on the trajectory.

As a result, after the auto-stop lever 32 is pulled up, the shoulder portion 32c comes into contact with the release protrusion 25d of the first gear 25, and the engagement between the engagement protrusion 32b and the thrust 25e is released.

Reference numeral 33 designates a play arm whose substantially center portion is pivotally 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 rotational force to the play arm 33 in a counterclockwise direction.

Therefore, the roller 33a is always in contact with the cam plate 29c.

Further, the other end of the play arm 33 corresponds to a control rod 2f projecting 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 rod 2f comes into contact with the play arm 33 and stops.

This state is the standby state.

Then, when the play lever 44 (described later) is pressed, the solenoid 3
1 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 comes into contact with the set plate 20 (which is constantly pulled forward (downward in FIGS. 1, 7, and 8) by the spring 21). It is slightly rotated by the edge 20d.

As a result, the third gear 2, which was in a position opposite to the second gear 26,
9 is displaced, the third gear 29 and the second gear 26 are meshed, and the next notch 29a is aligned with the second gear 26.
The third gear 29 is rotated until it faces the .

When the gear 29 is rotated, the roller 33 of the play arm 33
The play arm 33 is rotated clockwise by contacting the large diameter portion of the cam plate 29c, and the head stand 2 is further advanced to the playback or recording position.

From this state, when the stop lever 45 is pressed and the solenoid 31 is energized again, the lock arm 30 and the cam teeth 2
The engagement with 9b is released, and the roller 33a of the gray arm 33 rotates a little.

As a result, the third gear 29 is brought into mesh 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 counterclockwise to rotate the head stand 29c.
to return to the waiting position.

34 is a fast-forwarding unit pivoted on the chassis 1,
A gear 3 that selectively meshes with the gear 9a of the supply reel stand 9 or the gear 10a of the take-up reel stand 10 is provided on the upper surface thereof.
4a is provided.

The gear 34a is fitted onto the upper end of the rotating shaft that is pivotally supported by the rapid feed unit 34, and the lower end of the rotating shaft is fitted with the first gear. A rubber roller 34b that selectively contacts the second flywheels 4 and 6 is fitted.

Further, the fast-forwarding unit 34 has a protrusion 34c formed on the side thereof that comes into contact with a fast-forwarding arm 35, which will be described later, and a protrusion 34d that engages with a slide lever -38, which will be described later.

Reference numeral 35 denotes a fast-forwarding arm pivotally supported at the tip of a fast-forwarding lever 41, 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.

38, one end 38 is attached to a guide bin installed in the chassis 1.
a is a slide lever whose other end guide piece 38b is guided in a groove (not shown) bored in the chassis 1, and a stepped portion 3 comes into contact with the protrusion 34d of the fast-forwarding unit 34;
8c, and a projecting piece 38d that comes into contact with the hanging piece 33b of the play arm 33.

A spring force is always applied to the slide lever 38 toward the front (downward in the figure) by a spring 39.

Then, when the fast-forward lever 41 is pressed, the fast-forward arm 3
5, the hanging piece 35b is the bent part 47 of the fast forward lever 47.
Move forward while in contact with c.

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 comes into contact with the first flywheel 4, and the gear 34a meshes with the gear 10a of the take-up reel stand 10, so that the take-up reel stand rotates at high speed and rapidly feeds the tape.

On the other hand, when the rewind lever 48 is pressed, the fast forward arm 35
The upright piece 35a is brought into contact with the stepped portion 48c of the rewinding lever 48, 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 roller 34b comes into contact with the second flywheel 6, and the gear 34a meshes with the gear 9a of the supply reel stand 9, so that the supply reel stand 9 rotates at high speed and rewinds the tape.

Reference numeral 40 denotes a lever arm whose approximately center part is pivotally supported by a support pin 1d of the chassis 1, and one end of which is a play lever 44, which will be described later.
The other end is supported by the notch 20b of the set plate 20.
It is coming within.

Note that the lever arm 40 is constantly applied with a counterclockwise rotational force by a spring 41.

Reference numeral 42 designates a pause lever guided by a guide groove 42a, and a cutout groove 42b is formed at the tip to avoid the above-mentioned support pin 1d.

The pause lever 42 can be engaged with and detached from a pause lever lock plate 43 that is embedded in the chassis 1 and is pivotally 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 lock plate 4
3 is engaged with the protrusion 42c and held in a pressed state, and when pressed again, the engagement between the lock plate 43 and the protrusion 42c is disengaged and the lock plate 43 returns to its original position.

44 is a play lever having two lock pieces 44a and 44a', and 45 is a stop lever that has a lock piece 45a and is guided by a guide groove 45b, and is always pushed forward (downward in the figure) by a spring 46. has been granted.

4γ has a lock piece 47a and is guided by a guide groove 47b; 48 is 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 41 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.

Also, a protruding piece 49aKi that protrudes laterally from the auxiliary lever 49
t The auxiliary lever 49 is used for fast forwarding and rewinding levers 47 and 48.
The tip of a spring member 49b, one end of which is fixed to the chassis 1, is pressed against the chassis 1 when the spring member 49b is operated.

Furthermore, highly viscous grease is applied between the auxiliary lever 49 and the chassis 1 to ensure smooth sliding.

When the auxiliary lever 49 slides due to the spring 52, the chassis 1 is pressed by the spring member 49b, so that the auxiliary lever 49 slides gently until the spring member 49b comes off.

53 is a recording lever that has a lock piece 53a and is guided by a guide groove 53b, and a spring force is always applied to the front (downward in the figure) by a spring 54.

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 track interval detection lever that is pivotally supported by a pin 11 implanted in the mounting piece 1h bent downward on the side surface of the chassis 1, and 57 is pivotally supported by a pin 1j implanted in the mounting piece 1h. A clockwise rotational force (as shown in FIG. 12) is constantly applied to the lock plate by a coiled spring 58.

One end of the lock plate 57 is engaged with a protrusion 56a of the song interval detection lever 56, and the other end is engaged with a 30th lock plate 160, which will be described later.
A claw 5 that engages with one end 59a of a control plate 59 that controls rotation.
7a is formed.

Further, the lower end 56b of the song interval detection lever 56 is connected to the control plate 59.
is in contact with one end of the

This control plate 59 is moved clockwise (19th
), that is, one end is the lower tip 5 of the song interval detection lever 56.
6b is applied with a spring force such that the other end is pressed against the third
It is in contact with the zero-touch plate 76.

11 and 12, the song interval detection lever 56 is rotated (rotated clockwise in FIG. 12, indicated by a two-dot chain line).
Then, the lower tip 56b rotates the control plate 59 counterclockwise (FIG. 19) against the spring force of the coiled spring 60.

At the same time, since the protrusion 56a of the lock plate 57 moves, a clockwise rotational force is applied by the spring force of the coiled spring 58 (FIG. 19).

Therefore, the pawl 57a of the lock plate 57 is initially in contact with the control plate 59, but as the control plate 590 rotates, one end of the control plate 59 is positioned above the pawl 57a. The claw 57a of the lock plate 51 and the control plate 59 are engaged and locked.

On the other hand, to release the lock, the protrusion 56a rotates the lock plate 57 counterclockwise against the spring force of the coiled spring 58 by returning the song interval detection lever 56, and therefore the pawl 5γa and the control plate 59 are separated. Ru.

Reference numeral 60 denotes an eject lever that is pivotally supported on a pin 1t that is implanted in a mounting piece 1k that is bent downward on the side surface of the chassis 1, and 61 is a sub that is pivotally supported on a pin 1m that is also implanted on the mounting piece 1k. 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 the mounting piece 1 and the eject lever 60, the sub-eject lever 61 protrusion 61
a and against the spring force of the coiled spring 63, the lever 61
)2. It is also rotated to the right.

This rotation to the right causes the engagement rod 64a of the lid 64 that covers the cassette portion, which had been engaged with the hook portion 61b, to disengage.

Therefore, the lid 64 is opened.

Also, as the eject lever 600 rotates, the lever 6
0 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 γe of the head stand locking plate γ further protrudes from the lock elongated hole 2e of the head stand 20, and by the operation of one end of these pieces, the engaging pawl 7d is engaged with the lock elongated hole 2e, and the head stand 2 is moved to the initial position. Lock in position.

Reference numeral 66 denotes an auto-repeat lever that is pivotally supported by a pin 10 planted in a mounting piece 1n bent downward on the side surface of the chassis 1, and 6T is a pin 1 that is also planted in the mounting piece 1n.
A spring 68 is stretched between the auto repeat lever 66 and the repeat lock plate 67, and the protrusion 66a of the auto repeat lever 66 and the repeat lock plate 67 are bent. The piece 67a acts in such a way that it is always in contact with the piece 67a.

Reference numeral 69 denotes a repeat slide lever which is interposed between the chassis 1 and the head stand 2 and is movable in the front-rear direction (left-right direction in FIGS. 13 to 15), and is always pushed backward (to the right in the figures) by a spring γ0. power is given.

A hanging piece 69a is formed on the right side of this repeat slide lever 68, and a lock rod 69b is implanted in this hanging piece 69a.

When the auto repeat lever 66 is pushed forward (to the left in the figure), the lever 66 comes into contact with the protrusion 69c of the repeat slide lever 69, moving the lever 69 to the left.

Furthermore, when the auto repeat lever 66 rotates, the repeat lock plate 61 is also rotated in the same direction by the spring 68, so that the lock rod 69b is engaged with the engagement recess 6γb of the repeat lock plate 6γ, and the repeat slide lever 69 is rotated.
to keep it moving.

On the other hand, when the auto-repeat lever 66 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 the engaging recess is rotated. 67b is lock rod 69
Leave from b.

As a result, the repeat slide lever 69 is moved by the spring 7.
0 moves it to the right and returns to its original position.

In FIG. 16, reference numeral 71 denotes a substantially F-shaped reel stand stop plate with one end pivotally supported on the chassis 1, and a pin 71a at the other end that comes into contact with the extension piece 3d of the pinch roller unit 3 described above.
is provided.

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 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 stand 10 is formed at the top of the reel stand stop plate 11.

Therefore, if you operate the eject lever 60 now, the head stand 2
is moved backward, and the pinch roller unit 3 is rotated clockwise, so that the pin 71 is rotated by the extension piece 3d of the unit 3.
a is pressed.

Therefore, the tooth portion 71b of the reel stand stop plate γ1 meshes with the gear 10a of the take-up reel stand 10, and the rotation of the take-up reel stand 10 is stopped.

Note that another means for forcibly stopping the take-up reel stand 10 when the eject lever 60 is operated is No. 17.
The one shown in Figure 18 is also considered.

That is, a substantially dogleg-shaped reel stand stop plate 13 is pivotally supported at its center by the above-mentioned support pin 1d, and one end is always in contact with the pin 2g of the head stand 2, and the other end is connected to the take-up reel stand 10. It corresponds to

Therefore, when the eject lever 60 is operated and the head stand 2 is moved back, the pin 2g rotates the reel stand stop plate 73 in the counterclockwise direction, and the tip thereof is pressed into contact with the gear 10a of the take-up reel stand 10.

This causes the take-up reel stand 10 to stop rotating.

As 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 γg is provided at the tip thereof, while the take-up reel stand 1
0 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 γ is returned to its original state by the spring 7a, the engagement protrusion 1g of the stop piece 7f is pressed against the back surface of the take-up reel stand 10, and is finally fitted into the vertical hole 10d.

Therefore, the 100 revolutions of the take-up reel stand are stopped.

In FIGS. 19 to 21, reference numerals 74, 75, and 76 denote first to 30th plates respectively pivotally supported by a shaft 77 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 lock pieces 47a, 48a, and 53a formed on the fast forward lever 4γ, the rewind lever 48, and the recording lever 53 correspond to each other on the tenth pick plate 14, and the stop lever 45 and the lock pieces 47a formed on the recording lever 53 correspond to each other on the tenth pick plate 14. 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 30th lock plate 76, respectively.

Furthermore, a step 75a is formed at the end of the 10th pick plate T4 adjacent to the 20th pick plate T5, corresponding to the step 76a of the 30th pick plate 76.

In both cases, the 20th plate γ4 is lowered by itself, but when the 20th plate γ5 is lowered, it lowers the 10th plate γ4 and also lowers the 30th plate 16.

But second. Steps 75a and 7 of the 30th pick plate 75 and 76
Since an initial mechanical gap is formed at 5a+, the 30th pick plate γ6 is lowered midway through the descent of the 20th pick plate 75.

Next, each lock plate and each corresponding lock piece and O-shape will be explained with reference to FIGS. 21A-E.

The 30th lock plate T6 has a hook portion γ6b formed by an upwardly inclined surface 76b1 and a vertical surface γ6b2 connected thereto. It has a hook portion 44a1' that lowers the hook plate 76 and engages with the vertical surface γ6b2 after passing the inclined surface 76b1.

The 20th pick plate γ5 has an ascending slope 75b1, a steeply descending slope γ5b2 connected thereto, and a gently descending slope 75b3.
and a vertical surface 75b4 connected thereto.The play lever 440 lock piece 44a is formed with a protrusion 44a1 that does not engage with the descending amount control section 75b. There is.

The protrusion 44a□ of the lock piece 44a is the lowering amount controller 7.
The 30th pick plate T6 is also lowered by the amount of descent of the 20th pick plate T5 when it passes the top of 5b.

Also, on the 20th pick plate 15, there is another descending amount control section γ5.
c is formed.

That is, the ascending inclined surface 75c1 and the descending inclined surface 7 connected thereto.
5c2 and a vertical surface 75c3, the height of the top thereof is the same as the height to the top of the above-mentioned descending amount control part 75b.

The lock release piece 45a of the stop lever 45 is formed with a protrusion 45a1 that is not engaged with the lowering amount control section 75c.

When the lock release piece 45a passes the top, the 10th pick plate 14 and the 30th pick plate T6 also descend and are unlocked if they have been locked.

10th lock plate 74hs fast forward lever 4γ and rewind lever 48 lock piece 4γa.

48a, there is a hook portion 74b formed by an upwardly inclined surface 74b1, a downwardly inclined surface 74b2 connected thereto, and a vertical surface γ4b3. .

48a is the upwardly inclined surface 14b1 and the downwardly inclined surface 74b2.
The hook portion 47att is engaged with the vertical surface T4b3 in sliding contact with the vertical surface T4b3.
It has 48a□.

Further, the tenth hook plate 14 has a hook portion γ4c formed by the inclined surface 74c1 and the vertical surface 14c2 continuous thereto.
The lock piece 53a of the recording lever 53 has a hook portion 53a1 that slides on the inclined surface 14c1 and engages with the vertical surface 14c2.

In FIGS. 8 and 19, γT is a switch control slide lever that is constantly moved to the right by a spring 78.

This slide lever 77 includes a play lever 44.
0 lock piece 44a, fast forward lever 4T lock piece 47a
A sloped portion 77a is provided at a portion corresponding to the lock piece 48a of the rewind lever 48 and the lock piece 53a of the recording lever 53, so that even when the tilting lever is pushed, the slide lever 77 is not moved by the spring force of the spring T8. Move to the side that resisted.

Note that a known recording lever blocking plate (not shown) is provided on the slide lever 77 so as to face the + .

FIG. 22 shows a circuit diagram, where SL 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;
S3 is a switch that is closed when the switch control slide lever 7T slides, S4 is a switch that is opened when the fast forward lever 4T and rewind lever 48 are operated and the auxiliary lever 49 is moved, and S5 is a switch that is opened when the 20th pick plate 15 is lowered. The switch that is then closed, S6, is the play arm 3
S7 is a switch that is opened when the slide lever 38 slides by 30 turns, S7 is a switch that is closed when the repeat slide lever 69 is slid, and S8 is a switch that is closed when the stop lever 45 is operated.
S9 is a switch that is closed when the slide lever 38 slides, SIO is a switch that is closed when the recording lever 53 is operated, and S□1 is a switch that is closed when the auxiliary lever 49 is moved.

, S13 is a remote control switch not shown in the mechanism diagram in the figure, S□2 is a switch that closes when performing a play operation, and S13 is a switch that closes when performing a stop operation.
S14 is a memory switch, S14, which is not shown in the mechanism diagram.
, 5&X counter 11 is a counter switch that is closed when the count 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, when the cassette 8 is placed on the head stand 2, the lock plate 7
Since the protruding piece 1e is pressed downward, the engaging claw 7d is disengaged from the elongated hole 2e of the lock of the head stand 20.

Therefore, the head stand 2 moves forward until the control rod 2f provided on the lower surface thereof comes into contact with the play arm 33.

In this state, the heads 2a and 2b of the head stand 2
is slightly inserted into the window of the cassette, G8.

On the other hand, when the head stand 2 moves forward, the protruding piece 3c of the pinch roller unit 3 is disengaged, so the unit 3 is rotated by the spring 3b, and the extension piece 3d is moved to the set plate 2.
The unit 3 comes into contact with the protruding piece 20a of No. 0, thereby stopping the unit 3.

At this time, the pinch roller 3a and the capstan 4a are not in contact with each other (FIG. 23).

When the play lever 44 is pressed in this state, the hook portion 44al' of the lock piece 44a'
6b.

Further, since the lock piece 44a pushes down the 20th pick plate T5, the switch S5 located on the lower surface thereof is closed, and the slide lever 11 is further moved by the lock piece 44a, and the switch S3 is closed.

Therefore, if the power switch S1 and timer switch S2 are 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 20, and the third gear 29 meshes 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 2T is rotated via the belt 28, and the second
Since the gear 26 is rotated, the third gear 29 is rotated approximately 180 degrees.

As the third gear rotates 290 degrees, the large diameter part of the cam plate 29c comes into contact with the roller 33a of the play arm 33, whereby the play arm 33 rotates and separates from the control rod 2f of the head stand 2, so that the head stand 2 is moved to the stopper length. Hole 2d is pin 1b
Continue moving forward until it touches the.

On the other hand, the set plate 20 is pulled by the spring 21 because the contact front edge 20d corresponds to the small diameter part of the cam plate 29c, and therefore the extension piece 3d of the pinch roller unit 3 is pulled by the spring 21.
is separated 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 take-up unit 1 is regulated by the abutment rear end edge 20c.
The engagement protrusion 17d of γ and the j spring 17e move to follow the abutting rear end edge 20c.

As a result, the lever 17a is rotated, and the rotating shaft 1γC is brought into contact with the rubber roller 10b of the take-up reel stand 10.

Therefore, since the take-up pulley 17b is rotated by the belt 19, the take-up reel stand 10 is rotated (second
Figure 4).

As described above, the rotation of the motor 18 rotates the take-up reel stand 10 and the capstan 4a, which is the rotating shaft of the first flywheel 40, and the amplifier A operates to reproduce the tape.

When the stop operation stop lever 45 is pressed from the play operation, the 20th pick plate γ5 is pushed down by the lock release piece 45a, so the 20th pick plate 76 is further pushed down, and therefore the play lever 44 is pushed down.
The engagement between the 0-lock piece 44a' and the 30th lock plate T6 is disengaged, and the lever arm 40, which will be described later, returns to its original position.

Further, the lock release piece 45a of the stop lever 45 closes the switch S8.

On the other hand, since the play arm 33 is rotated, the slide lever 38 that is in contact with it is pushed, and the switch S6
is opened and 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.

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 comes into contact with the control rod 2f, and the head stand 2 is returned to the intermediate position.

On the other hand, since the set plate 20 is pulled against the spring force of the spring 21, the abutting rear edge 20c returns the take-up unit 7 to its original state against the spring force of the spring 17e.

Therefore, the rotating shaft 17c is the rubber roller 1 of the take-up reel stand 10.
Since it moves away from 0b, the 100 rotations of the take-up reel stand are stopped.

Also, when the set plate 20 is pulled, the protruding piece 20a pushes the extension piece 3d of the pinch roller unit 3, so that
The unit 3 is rotated and the pinch roller 3a is separated from the capstan 4a.

As described above, the take-up reel table stops rotating 100 times, and the pinch roller 3a separates from the capstan 4a, so that the tape stops running.

Furthermore, since the slide lever 71 returns to its original position, the switch S3 is opened, and the power to the motor 18 and amplifier A is also cut off.

Next, when the eject lever 60 is pulled, the sub-eject lever 61 is rotated at the same time as the head stand 2 finishes retracting, and the engagement between the hook portion 61b and the engagement rod 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, and when the end face of the lock elongated hole 2e passes, it faces into the elongated hole 2e, so the eject lever 60 is released. The engaging claw γd and the elongated hole 2e are engaged with each other.

This ends the eject.

Recording operation With the cassette 8 loaded in the head stand 2, press the recording lever 5.
When 3 is pressed, the hook portion 53a1 of the lock piece 53a is engaged with the hook portion 74c of the tenth lock plate γ4.

When the recording lever 53 is pressed, the switch SIO is closed and a recording circuit (not shown) is activated.

Further, since the lock piece 53a of the recording lever 530 moves the slide lever 7T, the switch S3 is closed.

Therefore, since the motor 8 operates and the solenoid 31 is energized, the head stand 2 moves further forward by the same operation as in the play state described above, and the set plate 20 moves back, so that the pinch roller 3a is pressed against the capstan 4a. Also, the rotating shaft 17c comes into contact with the rubber roller 10b of the take-up reel stand 10.

Therefore, since the tape runs, recording starts (second
4 (FIG. 9) Note that the play lever 44 is pulled by the arm lever 40 and engaged with the 30th pick plate 16.

When the fast-forwarding lever 41 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 γ4b of the tenth hook plate 14.

Furthermore, 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 4γC, so the fast-forwarding arm 35 pushes the protruding piece 34c of the fast-forwarding unit 34.

As a result, the rapid feed unit 34 rotates, and its gear 3
4a is meshed with the gear 10a of the take-up reel stand 10.

Further, the rubber roller 34b is pressed against the first flywheel 4.

On the other hand, when the fast forward lever 4T is pressed, the lock piece 41a moves the slide lever 7T, so the switch S3 is closed and the motor is energized.

Therefore, the take-up reel stand 10 rotates at high speed (Fig. 25)
.

Further, when the stop lever 45 is pressed, the 20th pick plate T5 is lowered, so the 10th pick plate γ4 is also lowered.

As a result, the engagement between the fast-forward lever 4T and the first lock plate T4 is released, and the lever 47 returns to its original state.

Therefore, the fast-forward arm 35 also returns to its original state, so the fast-forward unit 34 also returns, the gear 34a and the gear 10a are disengaged, and the rubber roller 34b and first flywheel 4 are also separated.

Further, the slide lever 77 also returns and the switch S3 is opened to enter the stop state.

If S4, which is closed by the movement of the auxiliary lever 49, is closed at the same time or first before the switch S3 is opened by the slide lever 7T, then if the stop lever 45 remains pressed, the switch 86 remains closed. , and since the head stand 2 is in the intermediate position, the switch S6 is
The solenoid 31 remains closed, thereby energizing the solenoid 31.

Therefore, as is clear from the above explanation of the reproducing operation, the state is changed to the reproducing state, and the state is not stopped.

Therefore, in this invention, the spring member 4 is attached to the auxiliary lever 49.
9b, and presses the auxiliary lever 49 against the chassis 1 side.

Therefore, when the fast forward lever 4γ is disengaged from the tenth pick plate γ4 and moved by operating the stop lever 45,
The auxiliary bar 49 slides by the spring force of the spring 52, but at the beginning of the sliding state with the spring member 49b.
The sliding speed is slowed down by the spring force.

Note that in this state, the switch S4 remains open, and during this time the switch S3 is opened by the slide lever 7γ.

If the length of the spring member 49b that allows contact with the auxiliary lever 49 is determined so that the tip of the spring member 49b is separated from the auxiliary lever 49 after this release,
Switch S4 becomes closed.

Therefore, after the stop state is reached and the switch S3 is opened, the auxiliary lever 49 is moved by the spring force of the spring 52, so that switching is performed quickly.

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 hook portion γ4b of the tenth hook plate γ4.

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 reunit 34 is pulled by the spring force of the spring 3T and rotates, and its gear 34a is rotated. 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.

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 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 20th pick plate 75 is lowered, so the 10th pick plate 14 is also lowered.

As a result, the engagement between the rewinding lever 48 and the tenth hook plate 74 is released, and the lever 48 returns to its original state.

Therefore, due to the spring force of the spring 36, the fast feed arm 35 also returns to return the fast feed unit 34 to its original state.

As a result, the gear 34a and the gear 9a are disengaged, and the rubber roller 34b is also separated from the second flywheel 6.

Further, the slide lever 77 also returns and the switch S3 is opened to enter the stop state.

Auto stop operation during play or recording operation As mentioned above, during play or recording operation, the head stand 2
has moved forward to the recording/playback position, and the take-up reel stand 10 is rotating, so the first end detection terminal . A rotational force is applied to the second arms 14 and 15 in the same rotational direction as that of the take-up reel stand 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 thereof is connected to 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 meshed with the second gear 26, and the second gear 26 is interposed between the first flywheel 4 and the belt 28.
is wound, so the first gear 25 is rotating.

Therefore, when the engaging protrusion 32b is in pressure contact with the outer peripheral wall, the first
The gear 25 is rotated, and the engagement protrusion 32b and the protrusion 25c are not engaged.

When all of the tape is wound up and the take-up reel table stops rotating 100 times, the external force that was pressing the engagement protrusion 32b against the outer peripheral wall disappears, so that the engagement protrusion 32b passes through the narrowest groove 25a1 and then ．． It is held at that trajectory position.

Since the protrusion 25c is located on this trajectory, the first gear 2
It is engaged with the engagement protrusion 32b by 50 rotations.

This causes the auto-stop lever 32 to be pulled and the stop lever 45 to be pulled.

Pulling the stop lever 35 is the same as pushing the stop lever 35, and therefore the play state is changed from the play state to the stop state by an action similar to the stop action.

Further, after the engagement protrusion 32b and the protrusion 25c are engaged, the shoulder portion 32c of the auto-stop lever 32 comes into contact with the release protrusion 25d of the first gear 25 as the first gear rotates 250 times, and the engagement protrusion 32b The engagement with the protrusion 25c is released, 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 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

When the take-up reel table 100 rotations are stopped, the engaging protrusion 32b and the protrusion 25c are engaged with each other 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 the solenoid 31 is not energized.

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

Therefore, since the auto-stop lever 45 is given a rotational force in the opposite direction to that in the above case, the engagement protrusion 32b is pressed against the cam base 25b in the eccentric circular groove 25a of the first gear 25.

As a result, while the take-up reel stand 10 is rotating, the first gear 25 is rotated with the engagement protrusion 32b in pressure contact with the cam stand 25b.

When the take-up reel table 100 rotations are stopped, the engagement protrusion 32b passes through the narrowest groove portion 25a1 and is then held at its locus position.

Since the protrusion 25c is located on this trajectory, the first gear 2
It is engaged with the engagement protrusion 32b by 50 rotations.

Since the following operation is exactly the same as the auto-stop operation during fast forwarding, the explanation will be omitted.

Pause operation during play and recording As described above, during play and recording, the head stand 2 is in the recording/reproducing position and the take-up 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 tick-up unit 1T.

As a result, the rotating shaft 17c separates from the rubber roller 10b of the take-up reel stand 10, and the take-up reel stand 100 stops rotating.

That is, the state is the same as when the tape 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.
Rotate the control lever 24.

Therefore, the auto-stop lever 32 in contact with the control lever 24 is rotated in the same direction as in the fast-forward state, and the engaging protrusion 3-2b is brought into contact with the outer circumferential wall of the eccentric circular groove 25a.

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. 2T).
.

Auto-stop operation during fast forwarding or rewinding During fast forwarding or rewinding, the head stand 2 is in an intermediate position and the take-up reel stand 10 is rotating at high speed.

Even if the pause lever 42 is pressed here, the large diameter portion of the cam plate 290 urges the set plate 20 and contacts the bar 22, so both levers 20, 22 are not affected, and therefore the urging lever 22 is pressed. 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, the gear 34a is engaged with the take-up reel stand 10 and the gear 10a, and the rubber roller 34b is connected to the first flywheel 4. Apply pressure.

When the fast forward lever 47 is pressed, the switch S9 is closed via the slide lever 38, and the switch S1□ is closed via the auxiliary lever 49, so that the solenoid 31 is energized.

As a result, the cam plate 29c rotates, the arm lever 33 is rotated, the head stand 2 is returned to the intermediate position, the pinch roller 3a is separated from the capstan 4a, and the rotating shaft 17c is moved away from the rubber roller 10a of the take-up reel stand 10. Leave.

Therefore, the take-up reel stand 10 is rotated at high speed and enters a fast-forwarding state.

Further, even if the tenth pick plate T4 is lowered, the thirtieth pick plate γ6 does not fall, so that the play lever 44k''! remains locked to the thirtieth pick plate γ6.

Note that since the lever arm 40 is not rotated by the set plate 20, the play lever 44 is not returned.

Then, when you release your hand from the fast-forward lever 4γ, the fast-forward arm 3
5 returns, the fast-forwarding unit 34 also returns, the gear 34a is disengaged from the gear 10a of the take-up reel stand 10, and the rubber roller 34b is separated from the first flywheel 4, so that the fast-forwarding state is canceled.

Also, as the fast forward lever 4γ returns, the slide lever 38 and the auxiliary lever 49 return, so switches S6 and 8
4 is closed (switch S5 is closed because the 20th pick plate T5 is lowered, and switch S3 is closed when the slide lever γ
(closed because T 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 recording/playback 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. It comes into contact with the rubber roller 10a of the reel stand 10.

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, but at this time the protrusion 34d of the fast forward unit 34 touches the step 38c of the slide lever 38. Since they abut, 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 Sll is closed by the auxiliary lever 49 (switch S
9 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 manner as the cue operation described above, the pinch roller 3a separates from the capstan 4a, and the rotating shaft 1γC separates from the rubber roller 10a of the take-up reel stand 10.

Further, as the play arm 33 is rotated, the engagement between the protrusion 34d of the fast-forwarding unit 34 and the stepped portion 38c of the slide lever 38 is disengaged.

The rapid feed unit 34 further rotates, and the gear 34a and the gear 9a of the supply reel stand 9 are engaged, and the rubber roller 3
4b is brought into pressure contact with the second flywheel 6 and enters 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, and the gear 3
4a and the gear 9a of the supply reel stand 9 are disengaged, the rubber roller 34b is separated from the second flywheel 6, and the rewinding state is released.

Thereafter, the player returns to the playing state again by the same operation as the cue operation.

In the quick review recording state, press the rewind lever 48 and lower the tenth pick plate 74 using the lock piece 48a.
The recording lever 53 is disengaged from the tenth pick plate T4, 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 since the 20th pick plate 75 of the rewind lever 48 is lowered by the play lever 44, the lock piece 48a and the 10th pick plate γ4 are not engaged.

Also, in the cue and review operations described above, the fast forward lever 47 and the rewind lever 4 are
8 and 10 are not engaged with the tenth plate T4, respectively.

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 recording/playback nor fast forwarding nor rewinding is being performed, switch S7
is closed, so the motor 18 operates.

Further, the repeat slide lever 69 is moved forward by the auto-repeat lever 66, and the engagement piece 69d provided on the lever 69 pushes the upright piece 35a of the fast-forward lever 35, so the fast-forward lever 35 is rotated and the spring 37 is rotated. The fast forwarding unit 34 is rotated through the fast forwarding unit 34.

Therefore, the gear 34a 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 the entire tape is rewound and the take-up reel table stops rotating 100 times, 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 switch S4. is in the intermediate position. S6 is closed, and when the stop lever 45 is pulled and the 20th pick plate γ5 is lowered, the switch S5 is closed.
Solenoid 31 is energized.

Therefore, the play arm 33 is rotated, the head stand 2 is advanced to the recording/reproducing position, and the set plate 20 is moved forward, so that the pinch roller 3a and the capstan 4a are pressed against each other, and the rotating shaft 1γC and the take-up reel stand 10 rubber rollers 1
0a are brought into contact with each other.

Furthermore, since the slide lever 38 is advanced by the rotation of the play arm 330, the stepped portion 38c is
Push the protrusion 34d of No. 4, rotate the fast-forwarding unit 34 a little, and turn the gear 34. a and the gear 9a of the supply reel stand 9, and at the same time, the rubber roller 34b and the second flywheel 6 are separated.

Therefore, it becomes a play state.

Note that when the set plate 20 moves forward, the lever arm 40 is rotated, and the play lever 44 is therefore pulled.
It is locked by the 30th pick plate T6, and it can be seen from the outside that the play operation is in progress.

When the play operation is completed and the take-up reel table stops rotating 100 times, the auto-stop operation described above is activated and the play arm 33 rotates.

As a result, the slide lever 38 moves forward, and the stepped portion 38c
is disengaged from the protrusion 34d of the fast-forwarding unit 34, and the fast-forwarding unit 34 is rotated so that the gear 34a and the gear 9a of the supply reel stand 9 are engaged with each other, and the rubber roller 3
4b and the second flywheel 6 are brought into pressure contact with each other, resulting in a rewinding state.

Thereafter, in the same way as the above-mentioned operation, when 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 L/bar 66 is locked during 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 take-up reel table stops rotating 100 times, 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 reheat 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 play operation ends. If you wish to proceed, 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). ), so the solenoid 31 is energized.

Therefore, the play arm 33 is rotated, the head stand 2 is retreated to the intermediate position, and the set plate 20 is advanced, so that the pinch roller 3a is moved from the capstan 4a to the rotating shaft 1.
7c are separated from the take-up reel stand 10, respectively.

Also, by rotating the play arm 330, the slide lever 3
8 retreats and releases the restriction on the fast forward unit 34,
The rapid feed unit 34 rotates so that the gear 34a is engaged with the gear of the supply reel stand 9, and the rubber roller 34b is pressed against the second flywheel 6.

Therefore, it becomes a rewinding state.

To switch from the rewind state to the play state, press the stop 1/bar 45 again, the switch S5 will close,
Also, since the head stand 2 is in the intermediate position, the switch S4. Since S6 is closed and the auto repeat lever 66 is locked, the switch S7 is closed, so 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 while the auto repeat lever 66 is locked and a play operation is being performed, the lock piece 47a
It is engaged with the zero hook portion 74b.

Further, as the fast forwarding lever 41 moves forward, the slide lever 38
moves forward, switch S9 is closed, and auxiliary lever 49
Since the motor moves forward and the switch S1□ is closed, the solenoid 31 is energized.

Therefore, the head stand 2 retreats to the intermediate position by an action similar to when the stop lever 45 is pressed during the play operation in the auto-repeat operation described above, and the pinch roller 3a is moved from the capstan 4a, and the rotating shaft 17c is moved from the take-up reel stand. 1
Each departs from 0.

Since the fast-forwarding lever 4γ 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 take-up reel stand 10, and the rubber roller 34b is engaged with the first flywheel 4.
They are pressed against each other and enter a fast-forwarding state.

If you press the stop lever 45 in the fast forward state,
A transition to a play operation is made 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 51 moves, a clockwise rotational force is applied by the spring force of the coiled spring 58.

Therefore, the claw 57af of the lock plate 57! Initially, it is in contact with the control plate 59, but as the control plate 590 rotates, one end of the control plate 59 is positioned above the pawl 57a, and the spring force of the coil spring 58 causes the control plate 59 to contact the pawl 57a of the lock plate 5T. Board 59
are engaged and locked.

In addition, the switch PS is set to 0 by rotating the song detection lever 560.
It becomes N.

Next, when the play lever 44 is operated, the tape enters a playback state and starts running.

At this time, since the 30th pick plate is pushed 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.

If, for example, the rewind I-lever 48 is operated in this playback state, the lever 48 is locked to the tenth pick plate 14 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 works and when a song interval (no signal period) on the tape is detected, the play lever 44 moves the lever arm 6.
0, lifts the 20th pick plate γ5, releases the rewind lever 48 locked to the first pick plate γ4, shifts to the playback state, and plays back the desired recorded portion.

Rapid forwarding can also be performed in the same manner. The recording timer operation power switch S1 is closed and the recording lever 53 is locked.

When the timer switch S2 is closed in this state, the slide lever Tγ has moved, so the switch S3
is closed, and since the recording lever 53 has moved, the switch SIO is closed, and since the head stand 2 is in the intermediate position, the switches S4 and S6 are closed.

Therefore, recording is started by an operation similar to the recording operation described above, and when the tape reaches the end, the tape is stopped by an auto-stop operation.

The play timer operation power switch S1 is closed and the play lever 44 is locked.

When the timer switch S2 is closed in this state, the slide lever γ7 has moved, so the switch S3
is closed, the play lever 44 is pushed again, and the 20th pick plate T5
Since the head is lowered, the switch S5 is closed, and since the head stand 2 is in the intermediate position, the switch 54t86 is closed.

Therefore, play is started by an operation similar to the play operation described above, and when the tape ends, the tape is stopped by an auto-stop operation.

Remote Control Operation Mechanism When a remote control switch S1° provided at a location not shown in the drawings is pressed, the motor 18 is energized, the second gear 21 is rotated, and the first gear 25 is rotated.

However, it does not work even in recording/playback mode, fast forwarding or rewinding mode.
Therefore, the supply reel stand 9 and the take-up reel stand 10 do not rotate either, and the auto-stop operation is activated.

Before operating the remote control, the song interval detection lever 56 is locked and the 30th pick plate 76 is lowered.

And by auto-stop operation, the switch I/tube lever 4
5 is pulled and the switch S5 is closed (note that at this time, since the head stand 2 is in the intermediate position, the switch 84 is closed).
) 36 is also closed), so the solenoid 31 is energized.

Therefore, the play arm 33 rotates, the head stand 2 advances to the recording/playback position, the set plate 20 is pulled forward, the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 17
c is brought into contact with the rubber opening 10b of the take-up reel stand 10.

Therefore, the play state is established, and the play lever 44 is pulled by the lever arm 40.

However, since the 30th lock plate 76 is lowered by the time-curve interval detection lever 56, the lock piece 44a' and the 30th
It is not engaged with the pick plate 76.

Therefore, the play lever 44 remains pulled only by the arm lever 40.

Then, when the remote control switch S13 is closed, even if the remote control switch S1° is opened, the play state is reached, so that the remote control switch 83 is closed.

Therefore, the solenoid 31 is energized, so the head stand 2 returns to the intermediate position, and the pinch roller 3a is moved to the capstan 4a.
, and the rotating shaft 17c separates from the rubber roller IOb.

Also, the arm lever 40 returns the play lever 44 to its original state.

Then, when the remote control switch S1° is closed again, the play state is resumed by the above-described operation.

Memory operating mechanism Press the memory switch S14, which is not shown in the drawings.

Then, set the counter 11 to zero and turn the play lever 44.
When locked, the above-mentioned operation becomes a play 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.

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 S15 is closed and the slide lever 7T is closed.
Since the head stand 2 is in the intermediate position and the switch S6 is closed, the solenoid 31 is energized.

As a result, the play arm 33 is rotated and the rad stand 2 is rotated.
moves forward to the recording/reproducing position and the set plate 20 is moved forward, so that the pinch roller 3a is pressed against the capstan 4a, and the rotating shaft 1γC is brought into contact with the rubber roller 10b of the take-up reel stand 10.

Therefore, the play state is entered, and the play lever 44 is also moved forward and locked by the lever arm 40.

Note that the rewind lever 48 is unlocked.

Eject operation while the take-up reel stand is rotating When the take-up reel stand 10 is being rotated by the driving force of the motor, that is, during recording, playback, or fast-forwarding operations, when the eject lever 60 is operated, the head stand 2 is retreated to the final position. The cassette 8 is ejected from the reel stands 9 and 10.

However, in this state, the take-up 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 60 is
When is operated, the take-up reel stand 10 is forcibly stopped, and the apparatus is stopped by the auto-stop operation described above.

That is, in the embodiment shown in FIG. 16, the pinch roller unit 3 returns, and in FIG. 17, the first
Figure 8 shows that each take-up reel stand 10 is
This is to stop the

Remote control operation in auto-repeat operation The remote-control operation does not operate unless the song interval detection lever 56 is locked as described above, but the case where the auto-repeat lever 66 is also locked will now be described.

In this case, as can be seen from the circuit diagram in FIG.
Switch S8. Since they are connected in parallel with the circuit S9, the solenoid 31 can be energized each time the remote control switch S13 is operated.

Therefore, the above manual repeat operation can be performed remotely.

Although the above embodiment has described the switch S4 whose opening/closing is controlled by an auxiliary lever, if a spring member is brought into contact with a lever corresponding to a switch that requires a time difference, the same operation as described above will be performed.

As mentioned above, this invention is based on a tape recorder in which two switches are switched when switching from an operating state such as fast forward or rewind to a stop operation, and the switching of one switch is delayed. By applying a spring force to the lever that controls the switch only at the initial stage of movement to delay the movement, a time difference is reliably created in switching the switch, and this operation can be prevented.
This has effects such as being able to quickly switch operations.

[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. FIG. 5 is a sectional view showing the take-up reel stand and part of the auto-stop mechanism; FIG. 6 is a bottom view showing the take-up reel stand and part of 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 auto repeat operating lever, and Fig. 14 is a top view of the eject operating lever and auto repeat operating lever. A side view of the repeat operation lever, Fig. 15 is an operation diagram of the eject operation lever and auto-repeat operation lever, Fig. 16 is an operation diagram of the reel stand stop mechanism, and Fig. 1γ shows another embodiment of the reel stand stop mechanism. Operation diagram, No. 18
The figure is an operation diagram showing another embodiment of the reel stand stop mechanism.
Figure 9 is a perspective view of the operating lever, Figures 20A to 20C are operational diagrams showing the relationship between the operating lever and the lock plate, and Figure 21A.
Figures 21E to 21E are operation diagrams showing the relationship between each operating lever and the lock plate, Figure 22 is a circuit diagram, Figure 23 is an operation diagram at the intermediate position of the head stand, Figure 24 is a play operation diagram, and Figure 25 is a diagram of the play pose operation, Figure 26 is a diagram of the rewinding operation, and 2nd γ
The figure is a fast-forward operation diagram, Figure 28 is an auto-repeat operation diagram,
FIG. 29 is a plan perspective view of the auxiliary lever. 1...Chassis, 2...Head stand, 3
... Pinch roller, 4 ... First flywheel 6 ... Second flywheel, γ ...
...Lock plate, 8...Cassette, 9...
...Supply reel stand, 10...Take-up reel stand, 1
1...Counter, 14...First arm for end detection, 15...Second arm for end detection, 17...Tick-up unit , 18...
...Motor, 20...Set freight, 22
...Biasing arm 24...Control lever
25...First gear, 25a...Eccentric circular groove, 25c...Protrusion, 26...Second gear, 29...Nth 3 Gear, 29b...Cam tooth, 29c...Cam plate, 30--Lock arm, 31...Solenoid, 32...
...Auto stop lever 33...Play arm, 34...Fast forward 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 5
6... Song interval detection lever, 57... Lock plate, 59... Control board, 60... Eject lever, 61... Sub Eject lever 64... Lid body, 66... Auto repeat lever 67... Repeat lock plate, 69
・・・・・・Repeat slide lever 71・・・・・・
・Reel stop plate.

Claims (1)

[Scope of utility model registration request] In a tape recorder that switches between two switches that change to different operating states by operating an operating lever, a chassis, etc. that slidably supports a lever for operating a switch that needs to be switched with a delay. The spring force of the spring member is applied only during an initial state in which the spring member that presses the lever is in contact with the support plate of the lever and the spring force of the spring that slides the lever is applied. Lever mechanism for operating switches in tape recorders.