JPS58212643A - Tape recorder device - Google Patents

Abstract

PURPOSE:To attain a soft touch operation without malfunction, by releasing the engagement of turning force transmitting gears forcedly when a tape traveling operation member is returned to a non-operation position. CONSTITUTION:When a tape traveling operation board 245 is operated, a locking part 382 of a high-speed lock lever 38 is unlocked from a locking part 304 of a high-speed driving gear 30 and the high speed driving gear 30 is engaged with a driving gear 28. If the high-speed driving gear 30 is rotated by 3/4 revolution, its locking part 305 is locked with the locking part 382 of the high-speed locking lever 38, a notched part 302 of the high-speed driving gear 30 is opposed to the driving gear 28 and the revolution of the high-speed driving gear 30 is interrupted. If the operation board is returned to the non-operation position, the high- speed locking lever 38 is returned to the original position, the locking part 382 is unlocked from the locking part 305 of the high speed-driving gear 30 and transferred to a position corresponding to the locking part 304.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tape recorder device, and particularly to one suitable for soft-touch operation.

[Technical background of the invention and its problems]

In recent years, in fully mechanical tape recorders, it has become popular to use soft-touch controls for various operators for setting the Q-f in a predetermined running state and in a stopped state. This soft-touch operation of the controller means that, for example, the head chassis and various other movable parts are moved to predetermined positions using the force of a motor, etc. Since the movable member is not moved to a predetermined position, the operating force of the operator can be completely reduced.

Incidentally, the soft-touch operation of the tape recorder as described above is still in the development stage, and there is still room for improvement in various respects. For example, conventional soft-touch operation mechanisms are large in size and consume a lot of power.
It is only used in some high-grade tape recorders. So, from the past, for example, a cassette with U/NO? - There is a strong desire to develop a soft-touch operation mechanism that is small, lightweight, and consumes little power, which can be applied to small portable chip recorders that use batteries, such as recorders.

In addition, in connection with the above-mentioned reduction in size and weight and reduction in power consumption, various movable parts are configured to operate organically and smoothly without heat, and safety measures are taken to prevent battery power consumption. There are demands for improvements in various aspects, such as implementation.

[Purpose of the invention]

This invention was made based on the above circumstances, and is an apparatus for transmitting the rotational force of a motor to a rotating body that is linked to chive travel by meshing gears in a rotational force transmission relationship such that they bite into each other. To provide an extremely good chip recorder device that does not cause malfunction and is suitable for soft-touch operation by forcibly disengaging the gears with a tape running operating member returned to a non-operating position. The purpose is to

[Summary of the invention]

In other words, the present invention is configured such that the gears are movable in conjunction with the operation of the tape running operation member to a rotational force transmission position where the rotational force of the motor is transmitted to the rotary body that is linked to the tape running, and the gears bite into each other. a rotating member to which the rotation of the motor is transmitted in conjunction with the operation of the tape running operating member; and a rotating member driven by the rotational force of the rotating member, Allowing the chip running member to be moved to the rotational force transmission position, and forcing the chip running member to the rotational force non-transmission position with the tape running operating member returned to the non-operating position. and a control member that is moved to release the meshing of the gears.

[Embodiment of the Invention] Hereinafter, an embodiment in which the present invention is applied to a cassette tape recorder will be described in detail with reference to the drawings. FIGS. 1 and 2 are overall views showing the front side of the cassette tape recorder described herein, and the back side with the main/palm removed from the front side, respectively.

First, in FIG. 1, reference numeral 1) is a main chassis formed into a substantially dreg-like shape by molding, for example, a synthetic resin material. Approximately at the center of the main chassis 11, right and left reel stands 12 and 13 are rotatably supported, respectively. A head slider 14 is supported between the right and left reel stands 12, 13 so as to be slidable in the directions of arrows A and B in the figure. Further, the head slider 14 has a recording/reproducing head (hereinafter referred to as an internal recording head) 15 and an erasing head 16 mounted side by side at the lower part of the figure.

Further, a capstan 17 is rotatably supported at the lower right portion of the main chassis 11 in the drawing. This capstan 17 serves as a rotating shaft of a flywheel, which will be described later, provided on the back side of the main chassis J1.

A pinch roller J8 is provided near the capstan 17. The pinch roller 18 is rotatably supported at one end of the pinch lever 181. The other end of the pinch lever 181 is fitted onto a rotating shaft 182 protruding from the main shear 711, so that it is rotatably supported around the rotating shaft 182. Therefore, the above pinch low-yzs is
When the pinch lever 181 is rotated clockwise in the figure,
It is brought into contact with the capstan 17.

Further, a motor 19 is installed at the right end of the main chassis 11 in the figure. Furthermore, in the part of the main chassis 1 corresponding to the upper part of the motor 19 in the figure,
A tape counter 20 is installed which is interlocked with the right reel stand 12 via a belt 201.

On the other hand, on the left end of the main chassis 11 in the figure, there is a well-known accidental erasure prevention lever 21, and an instrument for holding the lid (not shown) in the closed position and releasing the lid from the closed position to open it. Zoerado slider 22 and song selection (cue)
A solenoid granger 23 and the like are provided for each.

Next, in FIG. 2, arranged at the lower part of the figure is an operating section 24 for putting the cassette tape recorder into a predetermined operating state and stop state. This operation s24 is the second
From the left side in the figure, 5TOP operation panel 2 for stopping and ejecting
41, REC operation panel 242 for recording, REW for rewinding
Operation panel 243, PLAY operation panel 244 for playback, OFF operation panel 245 for fast forwarding, PAU for pause (pause)
The SE operation plates 246 are arranged in this order, and each is supported so that it can be suppressed in the direction of arrow C in the figure and can be returned to in the direction of arrow C. Here, a lock plate 25 is supported on the main chassis 11 so as to be slidable in the directions of arrows E and F in FIG. 2 so as to be substantially orthogonal to each of the operation plates 241 to 246. Then, each of the operation panels 241 to 2
Of the 46, the RFC, R seat, PLAY, and FF operation panels 242 to 245 are adapted to be engaged with the lock plate 25 and locked in the pressed state by the suppression operation. In addition, the 5TOP operation panel 241 has a lock plate 25.
The operation panel 24 is in a locked state without being locked.
2 to 245 are engaged with the lock plate 25 to release them. Further, the PAUSE operation plate 246 operates independently without engaging with the lock plate 25 in any way, and engages with a known push-shush mechanism 26 to
The second suppressing operation locks the device in the depressed state, for example, temporarily stopping the reproducing state, and the second suppressing operation releases the locked state, returning the device to, for example, the reproducing state.

The REW and F"F operation plates 243 and 245 drive a high-speed drive mechanism, which will be described later, to operate the left reel stand 1.
3 and the right reel stand 12 are selectively rotated at high speed in the clockwise and counterclockwise directions in FIG. ``In addition, the above PLA
The Y operation plate 244 drives a constant speed drive mechanism to be described later.
The upper head slider 74i'g1 is slid in the direction of the arrow in the figure to bring the recording/reproducing head J5 into contact with the tape, and at the same time, the pinch roller 18 is brought into pressure contact with the cab stan J7 via the tape, and the above-mentioned right reel By rotating the stand 12 counterclockwise in FIG. 1, it functions to run the tape in a reproducing state. Further, the REC operation plate 242 drives the constant speed drive mechanism to drive the recording/reproducing head 1.
5. The pinch roller 18 and the right reel stand 12 are placed in the same position and rotational state as in the playback state, and the tape recorder circuit (not shown) is switched to the recording side, thereby functioning to run the tape in the recording state. In this case, REC
The operation panel 242 does not need to be operated in combination with the PLAY operation panel 244 (the recording state can be entered by operating the RFC operation panel 242 alone. Only during recording, the recording/reproducing head 15 is brought into contact with the tape in conjunction with the RAD slider 14, and is not brought into contact with the tape during reproduction.

Here, as shown in FIG. 2, the cab stan 17 is coaxially provided with a flywheel 27 and coaxially provided with a drive gear 28. This Cagstar/17, flywheel 27 and drive car 211f
Yes, it rotates as a unit. On both sides of the drive gear 28, a constant speed drive gear 29 and a high speed drive gear 3Q are rotatably supported on rotary shafts 291 and 301 protruding from the main shear 711, respectively.

The constant speed and high speed drive gears 29.30 are respectively meshed with and rotated by the drive gear 28, and some of the constant speed and high speed drive gears 29.30 have teeth, which will be described in detail later. A notch is formed, which normally faces the drive gear 28, so that even if the drive gear 28 rotates, the constant speed and high speed drive gears 29, 30 do not rotate.

And the above RFC and PLAY operation panel 242°244
When the operation plate for constant speed tape running is operated, the constant speed drive gear 29 is meshed with the drive gear 28 and rotated. and the pinch roller 18 is moved,
In addition, the right reel stand 12 is rotated, and constant speed running is performed here. In addition, the above R) tW and F
When a high-speed driving operation plate such as the F operation plates 243 and 246 is operated, the high-speed drive gear 30 is switched to the drive gear 2.
When the high-speed drive gear 3o is rotated, the right reel stand 12 and the left reel stand 13 are selectively rotated, and high speed running is performed here. Furthermore, the high-speed drive gear 30 also operates as the drive gear 2 when the PAUSE operation plate 246 is operated.
8 and is rotated.

Here, the upper and left reel stands 12.13 have their reel shafts 121, 131, which are rotation centers thereof, supported by substantially cylindrical bearing portions 122, 131 formed in the main chassis II.
It is supported by being fitted inside. Then, the right reel stand 1 is coaxially attached to the right reel stand 12.
Constant speed gear 123 and FF gear 1 that rotate integrally with 2
24 are provided one on top of the other. Further, the left reel stand 13 is provided with a REW gear 133 that rotates coaxially and integrally with the left reel stand 13. Further, various gears to be described later are selectively meshed with each of the gears 123, 124, and 133, and the right and left reel stands 12.
13 is rotationally driven. Furthermore, in the vicinity of the -F disposed reel stand 12, an automatic stop mechanism (hereinafter A
31 (referred to as SO mechanism) is installed.

The overall configuration of the cassette chip recorder described here has been briefly described above, and the specific configuration and operation of each part will be described in detail below. First, the constant speed drive mechanism will be explained with reference to FIG. 3. That is,
FIG. 3 shows details of the constant speed drive tooth '1pt-zy, in which a toothless notch 292 is formed in a part of the periphery of the constant speed drive gear 29, as described above. ing. This notch 292 is formed within an opening angle range of about 90' from the rotation center of the constant speed drive gear 29. Further, a cam portion 293 is formed on one side of the constant speed drive gear 29, and two locking portions 294 and 295 are protruded from the other side. The cam portion 293 has a substantially flat portion 2 of il.
96 and a curved second portion 297. Further, of the two locking portions 294 and 295, the locking portion 294 is formed on the inner peripheral side, and the locking portion 295 is formed on the outer peripheral side. Further, the internal stop portions 294 and 295 are formed to have an opening angle of about 45° with respect to the rotation center of the constant speed drive gear 29.

Here, the cam portion 293 and the locking portions 294 and 295 have a constant speed drive lever 32 and a constant speed port.

Flavors 33 are each slightly engaged. This constant speed drive
-32 and constant speed lock lever 33 are both fitted onto a rotating shaft 331 protruding from the main chassis 11,
It is rotatably supported. Of these, the constant speed drive lever 32 has a thick part 321 formed in a substantially U-shape with the part fitted to the rotation shaft 331 as a base, and an open inner side of the thick part 3''21. The thin wall portion 322 faces the cam portion 293.The inner side of the arm portion 323 of one of the thick wall portions 3 and 2I of the constant speed drive lever 32 is the above cam part 2
93 is formed as a retaining portion 324 that comes into contact with the retaining portion 324 . Further, a driving portion 326 for moving the Herado slider J4 is provided protrudingly from the tip of the other arm portion 325 of the thick portion 321. Further, in the thin portion 322, there is a long hole 327 for allowing the rotation shaft 291 of the constant speed drive gear 290 to escape so as not to impede the rotation of the constant speed drive lever 32.
is formed. The constant speed drive lever 32 is biased to rotate clockwise in FIG. 3 by a torsion spring (not shown), which will be described later.
4 is pressed against the cam portion 293.

Further, the constant speed lock lever 33 is provided with a protruding lock portion 332 that selectively engages with the locking portions 294 and 295 of the constant speed drive gear 29 to prevent rotation of the constant speed drive gear 29. has been done. The constant speed locking gear 33 is urged to rotate clockwise in FIG. 3 by a not-shown sliding ring. This constant speed lockz? -33 in the clockwise direction in FIG. 3 until the locking portion 332 is engaged with the locking portion 294 of the constant speed drive gear 29. Here, the lock portion 332 of the constant speed lock lever 33
When the constant speed drive gear 29 is locked in the locking portion 294 of the constant speed drive gear 29, the cutout portion 292 of the constant speed drive gear 29 is opposed to the drive gear 28. At this time, the retaining part 324 of the constant speed drive Leno Z-32 comes to press the first part 296 of the cam part 293, and the constant speed drive gear 29 is urged to rotate clockwise in FIG. ing.

However, the lock part 332 of the constant speed port and Tsukureno-33
is engaged with the locking portion 294 of the constant speed drive gear 29, so the constant speed drive gear 29 is not rotated and is not meshed with the drive gear 28.

In this state, the REC or PLAY operation panel 2
42, 244, the constant speed lock lever 33 is rotated counterclockwise as shown in FIG. 3 in conjunction with the operation as will be described later.

Then, the lock portion 332 of the constant speed lock lever 33 is disengaged from the locking portion 294 of the constant speed NA drive gear 9. For this reason, the constant speed drive gear 29 is driven at a constant speed and is rotated clockwise in FIG.

4 and 5 show the relationship between the PLAY operation panel 244, the REC operation panel 242, and the constant speed lock lever 33, respectively. First, in FIG. 4, a substantially cylindrical retaining portion 333 is provided on the constant speed lock lever 33 in a protruding manner. And, on one side of the PLAY operation panel 244,
A protrusion 334 that engages with the retaining portion 333 of the constant speed lock lever 33 is formed.
When the AY operation plate 244 is operated in the direction of arrow C in FIG. 4, it has a sloped portion 335 that provides relief from the retaining portion 333 of the constant speed lock lever 33.

Therefore, when the PLAY operation plate 244 is operated, the upper Fte engagement part 333 is pressed by the inclined part 335,
The constant speed lock lever 33 is rotated counterclockwise in FIG. . When the PLAY operation plate 244 is locked to the lock plate 25 in the operated state, the constant speed lock renocouple 33 is held at a position rotated counterclockwise in FIG. 4. At this time, when the constant speed lock is in the holding position of /#-33, the lock portion 332 is in the constant speed drive gear 2
The locking portion 2950 on the outer circumferential side of 9 is located in the rotation path.

Next, in FIG. 5, the RFC operation plate 242 is disposed substantially perpendicular to the operation direction, that is, the direction of arrow C in the fifth factor, and is engaged with the nine RgC drive slider 34. That is, this RFC drive slider 3411''j is supported by the main chassis 11 so as to be slidable in its longitudinal direction, and the fifth
It is biased toward the right in the figure. The constant speed lock renocouple 3 is attached to one end of the REC drive slider 34.
A retaining portion 341 that engages with the retaining portion 333 of No. 3 is formed. Further, at the other end of the RgCg movable slider 34, a bent engagement piece 3-3 is formed to be loosely fitted into a guide hole 342 formed in the REC operation plate 242. This R
The guide hole 342 of the EC operation plate 242 is connected to the RgC operation plate 2.
42 in the direction of arrow C in FIG.
The C-drive slider 34 is formed to be able to slide to the left in FIG. For this reason, the RgC operation panel 24
2, the REC drive slider 34 slides to the left in FIG.

The joint portion 333 is pressed. Therefore, the constant speed lock lever 33 is rotated counterclockwise in FIG. . When the REC operating plate 242 is locked to the locking plate 25 in an operated state, the constant speed locking lever 33 is held at a position rotated counterclockwise in FIG. 5. At this time, in the holding position of the constant speed long lever 33, the lock portion 3
32 is a locking portion 295 on the outer peripheral side of the constant speed drive gear 29
It is arranged so that it is located in the rotation path of the

That is, the constant speed lock lever 33 is rotated by the same amount during playback and recording. Also, as shown in FIG. 3 again, the constant speed drive unit 32 has a thick wall portion 321 which escapes the engagement portion 333 of the constant speed lock lever 33 and is provided with a constant speed drive unit 32. -: An elongated hole 328 is formed to prevent rotation of the tz and constant speed lock levers 33 from being obstructed.

Here, the drive portion 326 of the constant speed drive lever 32 is extended to the front II side of the main shear 711 by loosely inserting the through hole (not shown) formed in the main shear 711, As shown in FIG. 6, the head slider 1
4 and pinch lever 181, one end of each of the torsion sedge rings J 4 J, . 1 g J are engaged with each other. Each of these torsion springs 1
Among 41.1113, Torsion Sgeling 14
1 has its center portion wound around and supported by a support shaft 142 that protrudes from the portion where the pre-recording/re-reading head 15 of the above-mentioned Radial slider J4 is viewed. Then, both ends of the torsion sgel ring 141 are moved upward in a stopped state.
Locking portions J 4.9 , 14 formed on the toss slider 14
4, and no biasing force is applied to the head slider 14 (51) to cause it to slide.Here, the upper end of the head slider 14 in FIG. is engaged with one end of the torsion spring 145.This torsion spring l
45r;,, -t approximately in the center is the inner chassis 11
The head slider J4 is wound around a support shaft 146 that protrudes from the main chassis 1), and the other end is locked to a locking portion 147 that protrudes from the main chassis 1). It is biased in the direction. Therefore, the head slider 14 is moved in the direction of the arrow B in the figure in a stopped state, and the drive portion 326 of the constant speed drive lever 32 is pushed in the same direction by one end of the torsion slide ring 141. Therefore, as previously explained with reference to FIG. 3, the constant speed drive lever 32 is biased in the direction H1 in FIG. In other words, constant speed drive in a stopped state/? -,? 2 Y'i
, F-Johnsgering 145 in the clockwise direction in FIG.

Next, the tone spring 183 is supported by having its center portion wound around the rotating shaft 182 of the pinch lever 181. And the above torsion spring 18
In the stopped state, both ends of the pinch lever 181 are respectively locked to locking portions 184 and 185 protruding from the pinch lever 181, and do not apply any rotation biasing force to the pinch lever 181. It is something. In addition, to the above RAD slider 1
A retaining portion 148 is formed at the lower right portion of FIG. 6 of 4 and is engaged with a protrusion 186 protruding from the pinch lever 181 from above in the figure. Therefore, when the head slider 14 is moved in the direction of arrow B in FIG. 6 in the stopped state,
The pinch lever 181 is rotated and held counterclockwise in the holograph, and the pinch roller 18 is spaced apart from the capstan 17. Here, as shown in FIG. In this case, two motor pulleys 192 and 193, which are randomly formed coaxially and integrally, are fitted. Each of these motor pulleys 192.193
Of these, the motor nose 192 is connected to the flywheel 27 via a belt 194 so as to freely transmit rotational force. The other motor pulley 193 is a center pulley 3 rotatably supported by the main shear 711.
5 via a belt 195 so that rotational force can be freely transmitted. Is this center pulley 35 coaxially and integrally equipped with a center gear? 5 is formed. Further, a constant speed plate 36 is provided near the center pulley 35.

The constant speed grate 36 is supported by the main chassis 1 so as to be rotatable about the rotating shaft 352 of the center pulley 35.

A transmission gear 361 that meshes with the center gear 35 is rotatably supported by the constant speed grate 36. Here, since the constant speed grate 36 rotates around the rotating shaft 352 of the center pulley 35, the transmission gear 361 is always meshed with the center gear 351 even when the constant speed grate 36 is rotated. It is something that

As shown in FIG. 6, the constant speed grate 36 has a coiled sedge ring between an engagement hook 362 formed at one end thereof and a retaining portion 363 formed on the main chassis 11. 364 is engaged, it is urged to rotate in the counterclockwise direction in FIG. By the way, an engaging portion 365 is provided protruding from one end of the above-mentioned YAUN F0 rate, q6.
I'm L. An engaging portion 366 having an inclination that engages with the engaging portion 365 from above in FIG. 47 is formed at the upper end portion of the head slider 14 in FIG. Therefore, in the stopped state, the head slider 4 is moved in the direction of the arrow in FIG.
Since the engaging portion 363 of No. 4 presses the retaining portion 365 of the constant speed grate 36 and rotates the constant speed grate 36 clockwise in FIG. 7 against the biasing force of the sedge ring 364, The transmission wheel 36 is spaced apart from the constant speed gear 123.

That is, in the stopped state, as explained in FIG. 6, the head slider 14 is
is lowered in the upward direction B in FIG. 6, and along with this, the pinch lever 181 is held in a rotated state counterclockwise in FIG. At the same time, the constant speed grate 36 is rotated clockwise in FIG. 7, and the transmission gear 36 is separated from the constant speed gear 12.3. Assume that the cassette tail recorder is not put into the playback state in such a stopped state, and the PLAY operation panel 244 is operated as shown in FIG. Then, as explained earlier, the constant speed lock lever 33 is rotated counterclockwise in FIG. 4, and as shown in FIG. Moving gear 2
9 is disengaged from the locking portion 294, and the constant speed drive gear 29 is meshed with the drive gear 28.

On the other hand, when the PLAY operation panel 244 is operated, a power leaf switch is turned on via a switch slider to be described later, the motor 19 is rotationally driven, and the flywheel 27 and center pulley 35 are rotated in the opposite direction in FIG. rotated clockwise. , here, the power leaf switch is not limited to the P LAY operation panel 244, but also the REC
, REW.

It is turned on via a switch slider in conjunction with the operation of the FF operation panels 242, 243, and 245. As the flywheel 27 is rotated, the drive gear 28 is also rotated counterclockwise in FIG. 3. Therefore, as shown in FIG. 8, the constant speed drive gear 29 is rotated clockwise in FIG. 8 by the rotational force of the drive gear 28. Then, the cam portion 293 formed on the constant speed drive gear 29
The engaging portion 324 of the constant speed drive lever 32 is pressed by the second portion 297 of the constant speed drive lever 32, and the constant speed drive lever 32 is rotated counterclockwise in FIG.

Therefore, the drive section 326 of the constant speed drive lever 32
As shown in the figure, the torsion springs 141 and 18 provided on the head slider 14 and the pinch lever 181
Press one end of each of the parts 3 upward in FIG. therefore,
The head slider 14 is slid in the upward direction A in FIG. 6 through the torsion spring 14 against the urging force of the toshi vI/currant/g 145.

Further, the pinch lever 181 is rotated clockwise in FIG. 6 by the torsion swing 11J3f:9.

As shown in FIG. 9, the constant speed drive gear 29 is approximately 3
/4 rotation, and when the notch 292 reaches just before facing the drive gear 28, the constant speed drive is performed.
is the most rotated position in the counterclockwise direction in FIG.

Here, the slide of the head slider 14 in the direction indicated by the arrow in FIG. 6 is made such that the head 15 mounted on the head slider 14 contacts the tape with optimum pressure. . This can be done, for example, by forming a retaining portion (not shown) on the main chassis 11 at a portion corresponding to the optimal position of the head slider 14, and bringing the head slider 14 into contact with the retaining portion. It can be realized if In addition, the pinch lever 181
The clockwise rotation in FIG. 6 is defined until the pinch roller 18 comes into contact with the cab stan 17. The travel stroke for the constant speed drive lever 32 to reach the position shown in FIG. 9 is set to be longer than the travel strokes of the head slider 14 and the pinch lever 181. Therefore, when the constant speed drive lever 32 is rotated to the position shown in FIG. 1. Push up one end of each of the springs 141, 183 away from the locking portion 144 of the slider 14 and the locking portion 185 of the pinch lever 1810. At this time, both torsion springs 141 and 183 generate biasing forces against the head slider 14 and the pinch lever 181.

Therefore, the head slider 14 is held at a position where the pre-recording/re-recording head 15 contacts the tape with optimum pressure by the biasing force of the tension/sgeling 141. Further, the pinch roller I8 is pressed against the cab stan 17 via a tape by the biasing force of the toshie and spring ring 183.

At this time, the constant speed drive lever 32 has its drive section 3.
26, Toshi, Nsguring 141*18
This means that the resultant force of 3,145 urging forces is applied. When the constant speed drive gear 29 is further rotated slightly clockwise in FIG. 9 by the rotational force of the drive gear 28 from the position shown in FIG. The retaining portion 324 of the gear 32 faces the boundary between the first portion 296 and the second portion 297 of the cam portion 293 formed on the constant speed drive gear 29.

Here, as mentioned earlier, when the constant speed drive gear 29 is in the state shown in FIG. 9, the lever 32 of the constant speed drive 4 has the aforementioned torque! A combined biasing force is applied by the rings 141, 183, 145, and all of this biasing force is applied to the rotating shaft 291 via the cam portion 293. That is, when the constant speed drive gear 29 rotates before reaching the state shown in FIG. 9, the cam portion 293 receives the biasing force applied to the constant speed drive lever 32, so that the constant speed drive gear 29 rotates as shown in FIG. 8, for example. Although it is biased to rotate counterclockwise at the position shown,
It is rotated clockwise in the figure by the rotational force of the drive gear 28 against the biasing force. However, after reaching the position shown in FIG. 9, the constant speed drive gear 29 is rotated clockwise in FIG. The shape of the cam portion 293 and the positional relationship between the rotating shaft 291 and the like are set so that the cam portion 293 is biased.

Therefore, in the state shown in FIG. 1(), the constant speed drive gear 2
9 attempts to rotate clockwise, but this rotation is prevented by the locking portion 295 of the constant speed drive gear 29 being locked with the locking portion 332 of the constant speed lock lever 33.
The constant speed drive gear 2g and the constant speed drive lever 32 are stably held in the positions shown in FIG. 10. At this time, the notch 292 of the constant speed drive gear 29 completely faces the drive gear 28 so that no turning force is applied thereto. Therefore, the head slider 14 and the pinch roller 18 are stably held in the position shown in FIG. 6.

On the other hand, when the head slider 14 is first slid in the direction of arrow A in FIG. 6, its engaging portion 366 is disengaged from the engaging portion 365 of the constant speed grate 36. Therefore, the constant speed grate 36 is rotated counterclockwise in FIG. 6 by the biasing force of the sedge ring 364. therefore,
As shown in FIG. 7, the transmission gear 361 meshes with the constant speed gear 123, and the rotational force of the motor 19 is transmitted to the motor pulley 1.
93, it is transmitted to the right reel stand 12 via the pertono 95, center/ter pulley 35, center gear 351, transmission gear 361, and constant speed gear 123, and the right reel stand I2 is rotationally driven in the counterclockwise direction in FIG. This is where the tape is run while being played.

When the s'rop operation plate 241 is operated in such a playback state, the PLAY operation plate 244 locked to the lock plate 25 is released as shown in FIG.
The Y operation plate 244TI'i is slid downward in FIG. 4 and returned to the non-operation position. At this time, the constant speed lock lever 33 is rotated back clockwise in FIG. 4. Therefore, as shown in FIG. 10, the locking portion 332 of the companion constant speed lock lever 33, which is locked to the locking portion 295 of the constant speed drive gear 29, is released from the locking portion 295.

Then, the constant speed drive gear 29 moves to the 1st θ as mentioned above.
In the state shown in the figure, the constant speed drive gear 29 is rotated clockwise in FIG. 10 because it is urged to rotate in the clockwise direction in FIG. 10 via the constant speed drive lever 32. For rotation, the locking portion 294 engages the locking portion 3 of the constant speed lock lever 33.
32 to the position where it is locked.

In this manner, the constant speed drive gear 29 is returned to its original stop position, and in conjunction with this, the constant speed drive lever 32 is also held at its original position rotated clockwise in FIG. 10. Therefore, the head slider 14 and the pinch lever 181 are moved in the direction of arrow B in FIG. 6 and counterclockwise, respectively, and the constant speed grate 36 is rotated clockwise in FIG. 7 in conjunction with the bending. Ru. Accordingly, the upper recording/reproducing head 15 is separated from the tape, the pinch row 18 is separated from the capstan 12, and the transmission gear 3'r61 is also separated from the constant speed gear 123, thereby returning to the stopped state.

Next, assume that the cassette recorder and tote recorder are placed in the recording state in the above-described stopped state, and the REC operation panel 242 is operated as shown in FIG.

Then, as mentioned earlier, the constant speed lock 3'3
is rotated counterclockwise in FIG. 5, and then in the same operation as in the above regeneration state, the rad slider 14 and the pinch roller 18 are held at the positions shown in FIG. 6, and the transmission gear 361 is set at a constant speed. It is meshed with the gear 123 and chive travel is performed.

However, in the normal recording state, the erasing head 16 comes into contact with the tape, and the mechanism will be described later.

In addition, in the recording state as described above, the 5TOP operation panel 2
When 4-1 is operated, the lock plate 25 will open as shown in Figure 5.
The REC operation plate 242 that has been locked is released, and the REC operation plate 242 is slid downward in FIG. 145 and returned to the non-operation position. For this reason, RI! ;The C drive slider 34 is slid to the right in FIG. 5, and the constant speed lock lever 33 is accordingly rotated clockwise in FIG. Then, as described below, the head slider 14, the pinch lever 181, the constant speed grate 36, etc. are returned to their original positions, and the machine is in a stopped state.

Next, the high-speed drive mechanism will be explained with reference to FIG. 11. That is, FIG. 11 shows details of the high-speed drive gear 30, and a toothless notch 302 is formed in a part of the edge of the high-speed drive gear 300, as described above.

This notch 302 is formed within an opening angle range of about 90° from the rotation center of the high-speed drive gear 30.

Further, a cam portion 30 is provided in one direction of the high-speed drive gear 30.
9 is formed, and two locking parts 304 and 305 are formed on the other side.
is installed protrudingly. The cam portion 303 is composed of a substantially flat first portion 306 and a curved second portion 307. In addition, the above two locking parts J 04
, 305, the locking part 3θ4 is on the inner side, and the thread upper part 3
05 is formed on the outer peripheral side. Further, both the image stop portions 304 and 305 are located at approximately 400 degrees centigrade at the center of rotation of the high-speed drive gear 30.
It is formed to have an opening angle of 5°.

Here, the cam portion 303 and the engaging portions 304 and 305 have a 1 duck speed 1 sliding lever 37 and a high speed lock lever 38.
are respectively engaged. This high-speed drive lever 37 is rotatably supported by having its substantially central portion fitted onto a rotation shaft 371 that projects from the main shaft 11 .

A retaining portion 37 is provided at one end of the high-speed drive gear 37 and comes into contact with the cam portion 303 of the high-speed drive gear 30.
2 is formed. Further, at the other end of the high-speed drive lever 37, a substantially cylindrical drive portion 373 that engages with a control lever described later is formed. The high-speed drive lever 37 is moved to the eleventh
The retaining portion 372 is biased to rotate clockwise in the figure.
is pressed against the cam portion 303.

Further, the high-speed lock lever 38 is rotatably supported by having its substantially central portion fitted onto a rotation shaft 381 protruding from the main/yarn 11. A locking portion 38 is provided at one end of the high-speed lock lever 38 to selectively engage with the engagement portions 304 and 305 of the high-speed drive gear 30 to prevent rotation of the high-speed drive gear 30.
2 is provided protrudingly. Here, the above-mentioned high-speed lock
38 is urged to rotate clockwise in FIG. 11 by a not-shown sedge ring. The high-speed lock lever 38 is rotated clockwise in FIG. 11 until its locking portion 382 is engaged with the locking portion 304 of the high-speed drive gear 30. The lock portion 382 of the high speed lock lever 38 is the high speed portion! Regarding the locking part 304 of the #Il gear 30, in the state shown in FIG.
2 is opposed to the drive gear 28. At this time, the engaging portion 372 of the high-speed drive lever 37 comes to press the first portion 306 of the cam portion 303, and the high-speed drive gear 3σ is rotated clockwise in FIG. Since the locking portion 382 of the high-speed lock lever 38 is engaged with the locking portion 304 of the high-speed 1st wheel drive wheel 30, the forward speed drive gear 30 is not rotated and is prevented from meshing with the drive gear 28. Here, a retaining piece 383 that is engaged with the high-speed drive slider 39 is formed at the other end of the high-speed lock lever 38 . This high-speed drive slider 39 is connected to the lock plate 25.
It is supported by the main seven yards 711 so as to be able to slide freely in the left and right directions in FIG. The high-speed drive slider 39 is biased leftward in FIG. 11 by a sliding ring (not shown).
In conjunction with the operation of the operation plates 243 and 245, it is slid to the right in FIG. 11 against the biasing force of the tin ring. Here, the high-speed drive slider 39 is
When it is slid to the right in FIG. 1, the retaining piece 38 of the high-speed lock lever 38 is pressed in the same direction, causing the high-speed lock lever JJl'e to rotate counterclockwise in FIG. 11. Then, the locking portion 382 of the high-speed lock lever 38 is disengaged from the locking portion 304 of the high-speed drive gear 30. Therefore, the high-speed drive gear 30 is rotated clockwise in FIG. 1I by the rotation urging force applied via the high-speed drive lever 37, and meshed with the drive gear 28.

Figure 12 shows the above REW and FF operation panels 243°245
This shows the relationship between the high speed drive slider 39 and the high speed drive slider 39. That is, the high speed drive slider 39 has the above-mentioned Rgw and F.
Engagement pieces 391 are located at positions corresponding to the F operation plates 243 and 245.
．． 392 are formed respectively. And the above R
g On one side of the W and FF operation plates 243, 245, when the operation plates 243, 245 are operated in the left and right direction in FIG.
Slanted portions 393 and 394 are formed so that the high M drive slider 39 can be slid to the right in FIG.

Therefore, as shown in FIG.
When operated, the engagement piece 391 of the high-speed drive slider 39 is pressed by the inclined portion 393 tl, and the direct drive slider 39 is slid to the right in FIG. Therefore, in conjunction with the slide of the high-speed drive slider 39 in the right direction in FIG.
2, the locking portion 382 of the high-speed lock lever 38 is rotated counterclockwise in FIG.
It will be withdrawn from 2004. And the above RIiW
When the operation plate 243 is locked to the lock plate 25 in the operated state, the high-speed lock lever 38 is held at the position rotated in the counterclockwise direction d1 in FIG. At this time, in the holding position of the high-speed lock lever 38, the lock portion 382
is located in the rotation path of the locking portion 305 on the outer peripheral side of the high-speed drive gear 30.

Also, as shown in FIG. 13, the FF operation panel 245
When operated in the direction of arrow A in the figure, the retaining piece 392 of the high-speed drive slider 39 is pressed by the inclined portion 394,
The high-speed drive slider 39 is slid to the right in FIG. Therefore, the high speed lock lever 38 is
The high-speed lock lever is rotated counterclockwise in the figure.
The lock portion 382 of 38 is the locking portion 30 of the speed drive gear 30
This will be removed from 4.

When the FF operation plate 245 is locked to the lock plate 25 in the operated state, the high speed lock lever 38 is moved to the first position.
It is held in the position rotated counterclockwise in Figure 1. In the holding position of the high-speed lock lever 38 at this time, the lock portion 382 is located in the rotation path of the locking portion 305 on the outer peripheral side of the high-speed drive gear 30. In other words, the high-speed lock lever 38 is rotated by the same amount at 9 o'clock in rewinding and fast forwarding.

Here, the drive portion 373 of the high-speed drive lever 37 is loosely inserted into a through hole (not shown) formed in the main chassis 7 no. 1 and extends to the front surface side of the main chassis 11, as shown in FIG. 14, it is adapted to be engaged with one side of a control lever 40 (indicated by a broken line in FIG. 14). This control lever 40 is rotatably supported by having its substantially central portion fitted onto a rotation shaft 401 formed in the main chassis 11. On the upper side of the control lever 40 in FIG.
2 is formed. Further, the first control lever 40
A bent locking piece 403 to which one end of the torsion spring 4 is locked is formed at the lower end in FIG. The other end of this torsion swing 41 is wound around a support shaft 411 that projects from the main chassis J1, and is locked to a locking portion 412 that projects from the main chassis 11. For this reason, the control lever 41 is urged to rotate counterclockwise in FIG. 14, but the rotation is limited to the position shown in FIG.

On the other hand, as shown in FIG.
In addition to the center gear 351, a speed gear 353 that rotates coaxially and integrally is provided. At the lower part of the speed gear 353 in FIG.
is located. And the transmission gear 421°42
2 overlap each other and rotate coaxially and integrally, a transmission gear 421 can mesh with the high speed gear 353, and a transmission gear 422 can mesh with the right reel stand 12.
It is possible to mesh with the FF gear 124 of. Further, the other end of the FF lever 42 is fitted onto a rotation shaft 423 projecting from the main chassis 11, so that the FF lever 42 is rotatably supported. And the above FF lever 4
2 is rotated clockwise in FIG. 14, the transmission gears 421 and 422 of
24, respectively.

Further, a substantially central portion of a torsion gel ring 424 is wound around and supported by the rotation shaft 423 of the FF lever 42 . Both ends of this torsion ring 424 are attached to the locking portions 42 formed on the FF lever 42.
5I426 respectively, and FF Leno-4
No rotation biasing force is applied to 2. Here, at the upper end of the FF operation plate 245 in FIG. It is formed. This retaining portion 427 is an FF
When the operation plate 245 is in the non-operation position, it is set at a position slightly away from the end of the torsion spring 424 at 'Ip, downward in FIG. 14. Furthermore, a substantially cylindrical control section 428 is provided protruding from the other end of the FF t4-42.

This control section 428 includes an if and a second arm section 404.if formed in a substantially curved shape at the other end of the upper MCttt control lever 40.
The arm 405 can be held inside the first arm 404 of the arm 405 .

Further, the RM gear 133 of the left reel stand 13 includes a reversing gear 1 rotatably supported by the main chassis 11.
34 are engaged. Transmission gears 431 and 432 rotatably supported by one end of the 8w lever 43 are positioned above the reversing gear 134 in FIG. The transmission gears 431 and 432 have approximately the same diameter and rotate coaxially and integrally with each other, and the transmission gear 431 can mesh with the high-speed gear 363, and the transmission gear 432 can mesh with the high-speed gear 363. It is capable of meshing with the reversing gear 134. Further, the R11W lever 43 is attached to the main chassis 11 so that its substantially central portion can freely rotate around the reel shaft 13 of the left reel stand 13.
is supported by When the RLW lever 43 is rotated clockwise in FIG.
1,432 are meshed with the high speed gear 353 and the reversing gear 134, respectively.

Further, a substantially central portion of a torsion sedge ring 433 is wound around and supported by the bearing portion 132 of the left reel stand 13. And this Torsion Sgeling 4330
Both ends have locking portions 4 formed on the REW lever 43.
34° and 435, respectively, and the R circulation bar 4
3, no rotational biasing force is applied at all. Here, the agw of the torsion spring 433 is located at the upper end of the RF5N operation plate 243 in FIG.
A retaining portion 436 is formed that can be engaged with the end portion of the lever 43 that is engaged with the retaining portion 435 . This retaining portion 436 is set at a position slightly downward in FIG. 14 from the end of the torsion spring 433 when the REW operation plate 243 is in the non-operation position. Furthermore, a substantially cylindrical control section 437 is provided protruding from the other end of the RIiW lever 43 .

This control section 437 can be held inside the second arm section 405 of the control lever 4o.
Hook portions 429 and 4311 are formed at each other end of the FF, and a coiled spring 44 is engaged between the two hook portions 429 and 438, so that the FF
Reno-42 and R111W lever 43 are the first
Although they are urged to rotate counterclockwise in FIG. 4, the rotation of the FF lever 4-42 and the REW lever 43 is limited to IK as shown in FIG.

Further, a return slider 46 is arranged at the upper end in FIG. The return slider 45 is supported by the main chassis 1, 1 so as to be slidable in the vertical direction in FIG. 14, and is biased downward in FIG. 14 by a sliding ring (not shown). When the return slider 45 slides toward the upper end in FIG. 14, the contact pieces 451 and 452 formed at the lower end in FIG.
and abutting portions 453 and 454 formed at one end of the REW operation plate 243, respectively. For this reason, the return slider 45 has F F and Rg
When either one of the W operation plates 245 or 243 is manually operated in the direction of the arrow in FIG. 14, it slides in the same direction, the details of which will be described later.

Here, it is assumed that the cassette chip recorder is now in the fast forward state and the FF operation panel 245 is operated in the direction of the arrow in FIG. Then, the engaging portion 427 of the FF operation plate 245 presses the end of the torsion spring 424 of the FF lever 42 upward in FIG. 14. At this time,
The control section 428 of the FF lever 42 is connected to the WJ of the control lever 40.
The FF lever 4jij is not rotated clockwise in FIG. 14 because it is locked inside the arm portion 404 of the FF lever 4jij. However, since the FF operation plate 245 is sufficiently slid in the direction of the arrow A, the end of the torsion spring 424 is pushed up by the retaining portion 427 and released from the locking portion 426 of the FF lever 42. For this reason, the FF lever 4FK is
A biasing force is generated to rotate the F lever 42 clockwise in FIG. 14.

On the other hand, at the same time as the FF operation plate 245 is operated, as described above, as shown in FIG.
4, and the high-speed drive gear 30 meshes with the drive gear 28.

Also, at this time, the aforementioned power leaf switch is turned on in conjunction with the operation of the FF operation panel 245, so the motor 9 is rotated and the drive gear 28 is rotationally driven in the counterclockwise direction in FIG. . This round, high speed drive gear 30
is rotated in the clockwise direction in Fig. 11 by the rotational force of the drive gear 28, and as shown in Figs. 15 and 16,
The second portion 307 of the cam portion 303 presses the engaging portion 372 of the high-speed drive lever 37, and moves the high-speed drive lever 37 counterclockwise in the figure. Rotate it.

Then, as shown in FIG. 17, the drive part 313 of the commercial drive lever 37 presses the bending engagement part 402 of the control lever 4o, and the control lever 40
It is rotated clockwise in FIG. 17 against the biasing force 1.

Therefore, the restriction on the control section 428 of the FF lever 42 by the first arm section 404 of the control lever 40 is released, so that the FF lever 42 is first operated by the torsion sger ring 4.
Due to the rotation biasing force applied by 24, it is rotated clockwise in FIG.

The transmission gears 421 and 422 are the high speed gears 353
and FF gear 124, respectively. For this reason,
The rotational force of the motor 19 is transmitted to the right reel stand 12 via the belt 195, center pulley 35, high speed gear 353, transmission gears 421, 422, and FF gear 124, and the right reel stand 12 is rotated counterclockwise in FIG. The tape is rotated at high speed and the tape is fast-forwarded.

Here, when the high-speed drive gear 30 is rotated approximately 3/4, the locking portion 3 of the high-speed drive gear 30
05 is locked by the lock portion 382 of the constant speed lock lever 38, and the notch 302 of the high speed drive gear 30 faces the drive gear 28, preventing the high speed drive gear 30 from rotating.

At this time, as is clear from FIG. 17, the high-speed drive gear 30 is controlled to apply the biasing force of the torsion gear ring 41 of 4-40 and the rotational biasing force to the high-speed drive lever 37 itself (not shown). A resultant force with the urging force of the spring is applied via the cam portion 303. This combined biasing force is applied to the cam portion so as to act to rotate the high speed drive gear 30 clockwise in FIG. The shape etc. of 303 are set. For this reason, the locking portion 305 of the high-speed drive gear 30
The tape is pressed against the locking portion 382 and held stably at the position shown in FIG. 18, so that the tape continues to be rapidly fed. - In such a tape fast forwarding state, the 5TOP operation panel 2
41, the FF operating plate 245 is returned to the non-operating position, and the high-speed lock lever 38 is rotated clockwise in FIG. 18 and returned to its original position. For this reason, the locking portion 382 of the high-speed port and flavor 38 is connected to the high-speed drive gear 30.
It is completely disengaged from the locking part 305 and is placed in a position corresponding to the stationary part 304. Therefore, as described above, the high-speed drive gear 30 is rotated clockwise in FIG. It is brought into contact with the holder, stops rotating, and returns to its original position. For this reason, the high speed drive lever 32, control lever 9-40, etc. are returned to the stop position shown in FIG. 14, and are in a stopped state.

Further, assume that the cassette chip recorder is not in the rewinding state and the REW operation plate 243 is operated in the upward direction in FIG. Then, the engaging portion 4 of the REW operation plate 243
Press the end of the torsion ring 433 of the lever 43 upward in FIG. 14. When the control unit 431 of the REW lever 43 is in the control position 9-
Since it is locked inside the second arm portion 405 of 40,
The R& lever 43 is not rotated clockwise in FIG.

However, since the RIM operation plate 243 is sufficiently slid in the direction of the arrow A, the end of the torsion swell ring 433 is pushed up by the retaining portion 436, and the RIM operation plate 243 is disengaged from the locking portion 435 of the RW 430. Therefore, the torsion gel ring 433 generates a biasing force against the Rw lever 43 to rotate the REW L/par 43 clockwise in FIG. 14.

On the other hand, when the RKW operation plate 243 is operated, the locking portion 382 of the high-speed lock lever 38 is disengaged from the locking portion 304 of the high-speed drive gear 30, as described above and shown in FIG. The high-speed drive gear 30 is the drive gear 2
It is meshed with 8.

Therefore, as described above, the control lever 40 is rotated clockwise in FIGS. 1 and 9 via the high-speed drive lever 37, as shown in FIG. 19. Then, the control section 4 of the REW lever 43 is controlled by the second arm section 405 of the control lever 40.
Since the restriction on 37 is released, the REW/4-4J is first rotated clockwise in FIG. 19 by the round movement biasing force applied by the tone spring 433. The transmission gears 431 and 432 are meshed with the high speed gear 353 and the reversing gear 134, respectively. Therefore, the rotational force of the motor 190 is as follows: bell) 195 , center googly 35 , high-speed gear 353 , transmission gears 431 , 432 ,
The signal is transmitted to the left reel stand 13vc via the reversing gear 134 and the R11W gear 133, and the left reel stand 13 is rotated at high speed clockwise in FIG. 19, thereby performing chive rewinding.

Then, when the high-speed drive gear 30 is rotated about 3/4 of a turn, the high-speed drive gear 30 is stably held at the position shown in FIG. 18, as described above, and the chive unwinding state continues. It is something.

In addition, in the tape rewinding state as described above, the 5TOP
When the operation plate 241 is operated, the REW operation plate 243 is returned to the non-operation position, and in conjunction with this, the high-speed lock lever 38 is
is returned to its original position.

Therefore, since the high-speed drive gear 30 is returned to its original position, the high-speed drive gear 37 and the fu control V/40 are also returned to the stop positions shown in FIG. 14, where they are brought to a stop state. It is something that

Next, a case where the PAUSE operation panel 246 is operated will be explained. That is, as shown in FIG.
On one side of the USE operation panel 246, there is a high-speed lock lever 3.
A retaining portion 385 is formed that can be secured to one end of a torsion sedge ring 384 whose center portion is wound around the rotating shaft 381 of No. 8. And the above Torsion Sgeling 384
is PAUSF, and when the operation plate 246 is in the non-operating position, its both ends are respectively locked in locking portions 386 and 3117 formed on the high-speed lock plate 38, and 1i'11 and so on, no rotation biasing force is applied thereto. In addition, when the PAUSE operation plate 246 is in the non-operation position, the retaining portion 3
85 is located below the end of the torsion locking ring 384 that is engaged with the locking portion 386 of the high-speed locking mechanism 38 in FIG.

Now, with the cassette recorder in the playback state shown in FIG.
6 is operated in the direction indicated by the arrow in FIG. Then,
The engaging portion 385 of the PAUI operation plate 246 presses the end of the tone spring 384 upward in FIG. 20. Therefore, the high-speed lock lever 38 is rotated counterclockwise in FIG. 20, and as previously shown in FIG. The high-speed drive gear 30 is separated from the sliding wheel 2.
It is meshed with 8.

At this time, the rotation of the high-speed lock lever 38 in the counterclockwise direction in FIG. It is said that However, pAu=
Since the operation plate 246 is sufficiently slid in the direction indicated by the arrow in FIG.
38 is released from the locking portion 386. Therefore, the torsion spring 384 is
A biasing force is generated to rotate the high speed lock lever 9-38 in the counterclockwise direction in FIG.
38 is held at the position shown in Figure il1. Also, pAU
The sK operation panel 246 is a known device (not shown) mentioned above. Whoosh! Locked in operating position by locking mechanism.

When the high-speed drive gear 30 is rotated clockwise in FIG. 11 by the rotational force of the drive gear 28, the control lever 40 is rotated clockwise as shown in FIGS. 17 and 19. be moved.

Here, as shown in FIG.
A third arm portion 406 is formed that can be attached to the rotating shaft 187 for rotatably supporting the slider 14, and a bent arm portion 406 that can be attached to the protruding piece 149 formed on one side of the helad slider 14. An engagement piece 407 is formed. The constant speed grate 36 also includes a first arm portion 4 of a control unit 40.
An engaging portion 367 that can be engaged with the outside of 04 is formed.

Therefore, when the PAUi operation panel 246 is operated in the playback state as shown in FIG. 6 and the control lever 40 is rotated clockwise as shown in FIG. The arm portion 406 and the bent engagement piece 407 press the rotating shaft 187 of the pinch roller 18 and the protruding piece 149 of the head slider 14, respectively. Therefore, the pinch lever 181 and the head slider 14 are moved counterclockwise and downward in FIG. 21 against the urging force of the torsion springs 183 and 141, until the pre-recording head 15 comes into light contact with the tape. At the same time, the pinch row 218 is separated from the cab stan 17. Further, since the retaining portion 367 of the constant speed grate 36 is pressed by the outside of the first arm portion 404 of the control lever 40, the constant speed grate 36 resists the biasing force of the spring 364 and The transmission gear 36 is rotated in the direction of the stone reel stand 1.
The right wheel base 120 is spaced apart from the constant speed gear 123 of No. 2.
Rotation is stopped, and tape running is temporarily stopped at this point.

In the paused state as above, press PAUSE operation panel 2 again.
46 in the upward direction in Fig. 20, the PAUSE
The operation plate 246 is unlocked at its operation position and returned to its non-operation position. Then, constant speed lock lever 38
is returned to its original position, so as mentioned earlier, the speed drive gear 30 returns to the stop position, and in conjunction with this, the speed drive gear 30 is controlled.
The marker 40 is returned to the position shown in FIG. 6, and is in the regenerating state again.

Further, the above-mentioned pause operation can be similarly explained in the recording state.

Next, this cassette chip recorder has a PLAY operation panel 244, an FF operation panel 245, and a PLAY operation panel 244.
When both the
(hereinafter referred to as queue) status and rewind playback (hereinafter referred to as review/
−) can be realized. First, the 'queue state will be explained. In other words, this cue state can be thought of as the operation of the FF operation panel 2'45 in the playback state, and the high-speed drive gear 30 is rotated in conjunction with the operation of the FF operation panel 245 and moves accordingly. As shown in , the control lever 40 is rotated clockwise in the figure. Therefore, in the same way as explained earlier in the paused state, the control lever 40 causes the head clutter 14 to move to the recording/reproducing head 1st position.
It is pushed down to a position where it lightly contacts the tag, the pinch row 218 is separated from the cab stun 11, and the transmission gear 36 is separated from the constant speed gear 123 of the right reel stand 12.

At this time, as the FF operation plate 245 is operated, the FF lever 42 is rotated in the direction of the hour hand in the figure, as described above, as shown in FIG.
22 are meshed with the high-speed gear 353 and the FF gear 124, respectively, and the right reel stands 1 and 2 are rotated counterclockwise in FIG. 22 to perform chive fast-forwarding, thereby creating a cue state.

Next, the review status will be explained as 0 or 1. This review state can be obtained by operating the RW operation panel 243 in the playback state (i.e., the high-speed drive gear 3° is rotated in conjunction with the operation of the REW operation panel 243, and in conjunction with this, the second
As shown in FIG. 3, /J-49 is rotated clockwise in the figure. For this reason, the head slider 14 is moved by the control lever 40 in the same way as explained above in the paused state.
is pushed down to a position where the recording/reproducing head 15 lightly contacts the head, the pinch row 218 is moved away from the cab stan 11, and the transmission gear 36) is moved away from the constant speed gear 123 of the right reel stand 12. At this time, as the RIiW operation plate 243 is being operated, the REW lever 43 is rotated clockwise in the figure as shown in FIG. gear 353
and the reversing gear 134, respectively, and the left reel stand 7
3 (not shown in Figure 0423) is rotated clockwise in Figure 23, the tape is rewound, and the review state is established.

As mentioned above, in this cassette chip recorder, the head 16 is not brought into contact with the chip during playback, but the erasing head 16 is brought into contact with the chip during recording. This is because the erase head 16 is a so-called magnet erase head using a permanent magnet. Therefore, a mechanism for causing the erasing head 16 to contact or not contact the chip during playback and recording will be described. That is, as shown in Figure 1 again,
The erasing head 16 has one end rotatably supported by a rotation shaft 161 provided on the head slider 14. -162 is attached to the other end.

This erasing head lever 162 has a central portion that is connected to the rotation shaft 1.
The first tossin spring 165 is wound around the torsion head 61, has both ends bent, and is respectively locked to a locking portion 163 provided on the toss slider 14 and a locking portion 164 formed on the erasing head lever 162. Although it is urged to rotate clockwise in the figure, the rotation is made to the position shown in FIG. 1.

A substantially columnar control section 166 is protruded from the lower part of the erase head 162 in FIG. 1 at which the erase head 16 is attached. The control unit 166 is inserted into the REC operation plate 242 by loosely inserting it into a through hole (not shown) formed in the main chassis 11 and a through hole 161 formed in the REC operation plate 242 as shown in FIG. It extends to a position where it can engage with a bent engagement piece 461 formed at the lower end in FIG. 24 of the REC slider 46 arranged in parallel. The RFC slider 46 is supported by the main chassis 11 so as to be slidable in the vertical direction in FIG. 24. Further, the REC slider 46 is urged toward the lower end in FIG. 24 by a sliding ring (not shown), but when the REC slider 46 slides downward in FIG. 24 of the control section 166 of the head reparator 162. When the REC slider 46 is slid downward in FIG. 24, it turns on a REC switch (not shown) for switching a chip recorder circuit section (not shown) to a recording state.

Here, a rotation shaft 462 is installed approximately at the center of the REC slider 46. Then, this rotation axis 462
A REC lever 47 is rotatably supported.

On one side of the REC lever 47, a protrusion 471 is loosely fitted into a through hole 463 formed in the RFC slider 46.
is formed. Further, on one side of the REC lever 47, a guide portion 472 (shown surrounded by hatching in FIG. 24) formed in the head chassis 11 in a substantially groove shape is located at the lower part of the protrusion 411 in FIG. ) A retaining portion 473 is provided that protrudes and is loosely fitted into the inside. Here, the guide section 472
is formed in a rectangular shape that is elongated in the vertical direction in FIG. 2'4, and a stepped portion 47-4 is formed on the left side in the figure.

The REC lever 47 is urged to rotate clockwise in FIG. 24 by a spring (not shown).
The rotation is continued until the engaging portion 473 comes into contact with the lower side portion of the guide portion 472 in FIG. In addition, the above REC
A retaining portion 475 is formed protruding from the lower part of the lever 47 in FIG.

Then, the 24th part of the engaging part 475 of the REC lever 41 is
A drive section 481 formed at one end of the REC drive lever 48 is located at the bottom in the figure. This REC drive lever 48 is formed in a substantially dogleg shape, and its corner portion projects from the main chassis 11 and is rotatably supported by a round moving shaft 482. Therefore, the REC drive lever 48 is
When rotated clockwise in the drawing, the drive portion 48 comes into contact with the engaging portion 475 of the AEC lever 47, but as shown in FIG.
73 is in contact with the left side of the guide portion 4720 in the figure, the engaging portion 475 of the REC lever 47 is not opposed to the driving portion 481 of the RgC drive lever 48 and is not engaged. In addition, the REC drive lever 48
A long hole 483 is formed at the other end. This long hole 4
A protrusion 484 formed at the end of the constant speed drive lever 32 is loosely fitted into the inside of the REC operation plate 242. When the REC lever 47 is operated in the direction of the central force A, the REC lever 47
The REC lever 47 is engaged with the engaging portion 473 of the REC lever 47.
Slanted portions 47, 6 are formed that can be rotated counterclockwise in the figure.

Now, in the state shown in FIG.
2 in the direction of the arrow in the figure, then the 25th
As shown in the figure, the engaging portion 4''13 of the REC lever 47 is pressed by the inclined portion 476 of the REC operation plate 242,
The REC lever 47 is rotated counterclockwise in FIG. At this time, the retaining portion 423 of the REC gear 47 is placed in a position where it does not face the stepped portion 474 of the guide portion 472, and the retaining portion 425 of the age lever 47 is positioned to oppose the drive portion 481 of the RAC drive lever 48. Position and done. As described above, when the constant speed drive lever 32 is rotated counterclockwise in FIG. 24 by operating the REC operation plate 242, the image shown in FIG. As shown, the RFC-driven Renocou 4g is rotated clockwise in FIG. For this reason, the RεC drive lever 48
Since the driving part 481 pushes up the engaging part 475 of the REC lever 47, the RgC slider 46
be slid in the direction. At this time, the tosslider 14 is slid in conjunction with the constant speed drive lever 32 to the position shown in FIG.
is also slid in the same direction, and Q7' Ic ”
5 touched.

On the other hand, in the state shown in FIG.
4. When the lever is fully operated, the constant speed drive lever 32 is turned on and the REC drive is performed. -48 is rotated clockwise in FIG. 424. However, the drive section 481 of the REC drive lever 48 and the REC
Since it is not in a position opposite to the retaining part 475 of Reno 9-47, the driving part 481 of the REC drive lever 48 does not come into contact with the engaging part 475 of the REC lever 47, and the REC slider 4
6 is not slid in the direction of manual force in Fig. 24.

At this time, the head slider 14 is slid to the position shown in FIG. 6 by the action of the constant speed drive lever 32. In other words,
In Figure 24, erase head repper 1620 rotation axis 1
61 is manually moved in the direction A in FIG. 24, and the erasing head remover 162 is also moved in the same direction. However, R
Since the EC slider 46 is not slid in the manual direction in FIG.
It is pressed at the position where it touches. For this reason, the erasing head lever 162 has torsion springs 1 and 6 shown in FIG.
The erasing head 16 is rotated counterclockwise in FIG. 24 against the biasing force 5, so that the erasing head 16 is prevented from coming into contact with the tape.

Therefore, according to the configuration shown in FIG. 24, the REC slider 46 for regulating the position of the erasing head 16 during recording and playback is driven at a constant speed to move the head slider 14. Since the slide is made using the driving force of
Further, the operation of the RIlmC and PLAY operation panels 242, 244 does not become difficult, and is suitable for soft-touch operation. In this regard, using a magnetic erasing head as the erasing head 16 in particular simplifies the tape recorder circuit and eliminates the need for a connection line to connect the erasing head 16 and the tape recorder circuit. This has the advantage that the head slider 14 is not subjected to unnecessary side pressure or the like due to the connection line. However, in the past, as a means to regulate the position of the magnetic erase head during recording and playback, the erase head was directly linked to the REC operator, PLAY operator, etc., so RF:C, PI, AY The operation of the controller becomes difficult, making it unsuitable for soft-touch operation.

Therefore, as shown in FIG. 24, by sliding the REC slider 46 for regulating the position of the erasing head 16 using the driving force of the constant speed drive lever 32, the p, lc and PLAY operation plates 242, The magnetic erasing head having the above-mentioned advantages can be used in a cassette chip recorder with soft touch operation without making the operation of the H.244 difficult.

Next, as shown in FIG. 27, a control cam portion 298 is formed on the constant speed drive gear 29. The control cam portion 298 is formed so as to overlap the cam portion 293 of the constant speed drive gear 29, and is formed in the substantially flat first portion 2.
98a and a curved second portion 298b. Further, a sag chassis (not shown) is arranged in parallel with the main chassis 1 . A release lever 49 is rotatably supported on this sub-chassis. The release lever 49 is supported by a base portion 491 that is fitted onto a rotation shaft 492 that projects from the sag chassis. And the above release lever
49 has first to third extending portions 4 extending from the base 49.
93 to 495 are formed. Of these, the first extending portion 493 is capable of engaging with an engaging portion 43a protruding from the REW lever 43. Further, the second extending portion 494 is connected to the retaining portion 49 which is provided in a protruding manner on the FF lever 42.
It can be engaged with g. Furthermore, the third extension part 4
95 is capable of engaging with the control cam portion 298 of the constant speed drive gear 29. And the release lever 4
9 has a center portion wound around a rotation shaft 492, and both ends thereof are respectively locked to a locking portion 496 formed on the release lever 49 and a locking portion 497 protruding from the main chassis 11. It is urged to rotate counterclockwise in FIG. 27 by a tone spring 498.

The release lever 49 can be rotated counterclockwise in FIG. 27 to the position shown in FIG.

Here, as described above, in a state where the locking part 294 of the constant speed drive gear 29 is locked with the lock part 332 of the constant speed lock lever 33, the control cam part 2 of the constant speed drive gear 29
The first portion 298a of the release lever 49 is positioned opposite to the third extending portion 495 of the release lever 49.

In this state, for example, when the RFIW operation panel 243 is operated, the cassette tape recorder enters the chive rewind state as shown in FIG. 19. And now,
Assume that while the cassette tape recorder is rewinding the tape, the PLAY operation panel 244 is operated as shown in FIG. 28 in order to perform a review operation.

Then, by operating the PLAY operation plate 244, the constant speed drive gear 29 is engaged with the drive gear 28 and rotated clockwise in FIG. 28, as described above. At this time, the third extending portion 495 of the release lever 49 is pressed by the second portion 298bK of the control cam portion 298 of the constant speed drive gear 29. Therefore, the release lever 49 is rotated clockwise in FIG. 28 against the biasing force of the torsion spring 498. At this time, release lever 49
The first extending portion 493 of the REW lever 43 is engaged with the engaging portion 43a of the REW lever 43, and rotates the REW lever 43 counterclockwise in the 11″ direction in FIG.
J, 4.92 High speed gear 353 and reversing gear 1
34, and the left reel stand's 130 revolutions are temporarily stopped.

Thereafter, the constant speed drive gear 29 is rotated approximately 3/4 of a turn, and the first
When it is held at the position shown in the θ diagram, the control cam portion 298 is moved again.
The first part 298a is the 30'th part of the release lever 49.
Since the position is opposite to the extending portion 495, the release lever 49u to'/jons ring 4980 action causes the 28th
It is rotated counterclockwise in the figure and returned to its original position. Therefore, the first extending portion 493 of the release lever 49 is
Since the lever 43 is disengaged from the engaging portion 43a, the REW
The lever 43 is rotated clockwise in FIG.
the left reel stand 13 again.
is rotationally driven. At this time, the rotation of the constant speed drive gear 29 moves the head slider 14° pinch lever 181, constant speed plate 36, etc. to the playback position, but these movements are controlled by the control lever as shown in FIG. 40, and is placed in a review state here.

Furthermore, when the FF operation panel 245 is operated and the P LAY operation panel 244 is operated to perform a cue operation while the cassette tape recorder is fast forwarding the tape, the operation will be almost the same as above. can be explained. However, in this case, the release lever -49 is the 28th
When rotated in the direction of the first word in the diagram, is the release reno? -4
The second extending portion 494 of 9 is the engaging portion 4 of the FF lens 42.
Since it engages with the two colors, FF/4-42 is rotated counterclockwise in FIG. 17. Therefore, the transmission gears 421 and 422 are separated from the high speed gear 353 and the FF gear 124, and the rotation of the right wheel base 120 is temporarily stopped.

Then, when the constant speed drive gear 29 is held at the position shown in FIG. 10, the release is -? -49 is returned to its original position, so ll'F is performed, and 4-42 is also returned to its original position,
Transmission gear 421.422 Power ball high speed gear 353 and F, F
They are brought into mesh with the gears 124, respectively, and the right wheel base 12di is again driven to rotate. At this time,
Upper Q+Rad Slider to Snake 14. The positions of the pinch lever 4-181, the constant speed plate 36, etc. are regulated by the control lever 40, and are brought into a cue state.

Here, as described above, when the PLAY operation panel 244 is operated while the cassette tape recorder is performing fast forwarding and rewinding of the tape, the release lever 49, which is linked to the rotation of the constant speed drive gear 29, is moved to the right. By not transmitting rotational force to the left reel stand 12, 13, the load applied to the motor 19 can be reduced, and power consumption can be reduced. That is, when the PLAY operation plate 244 is operated and the constant speed drive gear 29 is rotated, the constant speed drive lever 32 is rotated, and the head slider 14 and the tilt lever 181 are rotated.
is moved to a predetermined position, but the driving force for rotating the constant speed drive gear 29 at this time is required to be greater than the driving force for rotating the high speed drive gear 30. In other words, the load applied to the motor 19 is greater when the constant speed drive gear 29 is rotated than when the high speed drive gear 30 is rotated. Therefore, when the PLAY operation plate 244 is operated in the fast forward and rewind state, the motor 19 and the right and left reel stands 12, 13 are connected to each other via the release lever 49 while the constant speed drive gear 29 is rotated by the normal rotation angle. By disconnecting the rotational force transmission relationship between the two reel units, the load caused by the motor 19 rotating the right and left reel stands 12, 13 and running the tape can be removed. Therefore, the power consumption and amount can be reduced, making it suitable for battery-powered cassette tape recorders. Regarding this point, conventional release lever 4
When switching from the tape high-speed running state to the cue and review state without providing the motor 19 with the constant speed drive gear 29
and the right and left reel stands 12.13.
Since the tape is rotated and the tape is run at high speed, the load is large and power consumption increases. For this reason,
□In a conventional battery-powered cassette tape recorder, if the normal battery voltage is 100C%, the voltage decreases by 70T!
Sufficient motor 190 rotation torque can only be obtained up to liE, and when the voltage is reduced to 70 (1) or less, the rotation of motor 19 is stopped when switching from the tape high-speed running state to the cue and review state. There is an inconvenience.

However, by using the release lever 49 to stop the rotation of the right and left reel stands 12 and 13 to stop tape running, the tape high speed running state can be switched to the key and review state until the voltage is reduced by about 50%. This makes it possible. For this reason, 4? - It is particularly suitable for use in a tuple type cassette tape recorder.

Here, as shown in FIG. 27 again, as mentioned earlier, the switch slider 50 is supported on the main chassis 11 so as to be slidable in the vertical direction in the figure. This switch slider 5o is the above-mentioned ty:>xi)vc, REC, R
EV, PLAY and FF (D each block board 242 to 2
45, it is slid upward in FIG. 27 to turn on the power leaf switch 501 disposed above the switch slider 50 in FIG. 27, thereby energizing and driving the motor 19. be. However, switch slider 5o, REC, REW, PLAY and FF
The interlocking relationship with each of the ridge plates 242 to 245 is well known and is therefore not shown. The first extending portion 493 of the release lever 49 has the switch slider 50. A bent engagement piece 499 that can be engaged with the bent engagement piece 502 formed on the - side is formed. That is, the above-mentioned double-bending engagement pieces 502.499 are connected to the release lever.
49 is rotated clockwise in FIG. 27, the switch slider 5o is slid upward in the figure.

. Here, if, for example, the cassette tape recorder is kept in the playback state and the PLAY operation plate 244 is operated, the constant speed drive gear 29 meshes with the drive gear 28 as described above. At this time, the PLAY operation panel 244
Since the power leaf switch 501 is turned on by the switch slider 5o that is linked to the operation of the motor 19
is rotationally driven, and thereby the constant speed drive gear 29 is rotated. For this reason, the heud slider. The pinch lever 181, constant speed grate 36, etc. are moved to predetermined positions, and the reproducing state is established.

At this time, for example, as shown in FIG.
It is assumed that the 5TOP operation plate 24 is operated while the gear 9 is being rotated with the driving gear 28VC engaged. Then, P
The LAY operation plate 244 is returned to the non-operation position, and the switch slider 50 is also slid downward in FIG. 27, and the power leaf switch 50 is about to be turned off. However, when the constant speed drive gear 29 is rotated, the release lever 49 is rotated clockwise in FIG. 502 is engaged with the bent engagement piece 499 of the release lever 49, and the switch slider 50 is prevented from sliding downward in FIG. 27.

Therefore, the power leaf switch 601 is not turned off and the rotation of the motor 19 is not stopped. Therefore, the constant speed drive gear 290 continues to rotate via the drive gear 28. Here, since the previous K PLAY operation plate 244 has been returned to the non-operating position, the constant speed drive gear 29Jd
Even if the position shown in Fig. 10 is reached, the constant speed lock lever 33
1 completely to the stop position without being locked by
It is something that is rotated.

When the constant speed drive gear 29 reaches the stop position, the release lever 49 is rotated counterclockwise in FIG. is separated from the bent engagement piece 502,
When the switch slider 50 is returned to its original position and the power leaf switch 501 is turned off, the rotation of the motor 19 is stopped. That is, once the constant speed drive gear 29 is engaged with the drive gear 28, the PL
Even if the AY operation plate operation plate 44 is returned to the working position, the release lever 4 remains until the constant speed drive gear 29 rotates once.
The leaf switch 501 for the 9Kj lt source is kept in the on state, and the motor 19 continues to rotate. Further, the operation of keeping the power leaf switch 501 in the on state by the release lever 49 as described above can be similarly explained when the REC operation panel 242 is operated. Then, when the power leaf switch 5θl is held in the on state with the constant speed drive gear 29 being engaged with the drive gear 28 by the release lever 49 as described above, the constant speed drive gear 29 This makes it possible to prevent the inconvenience that rotation is stopped while the drive gear 28 and the drive gear 28 are meshed with each other.

In this regard, in the conventional cassette chip recorder, the switch slider 50 is set to REC, FLEW.

It is simply linked to the PLAY and FF block plates 242 to 245. For this reason, for example, PLA
As shown in FIG. 8, it is inconvenient to operate the Y operation plate 244 to perform the 5TOP operation and the plate operation while the constant speed drive gear 29 is being rotated while being engaged with the drive teeth *:28.

However, as shown in FIG. 27, the constant speed drive gear 29
The constant speed drive gear 2 is
9 is rotating, the RFC or PLAY operation panel 242.2
44 to the non-operating position 1, the power leaf switch 5
By keeping 01 in the on state, constant speed drive gear 2
It is possible to solve the problem that the tape cassette 9 is stopped during rotation and the tape cassette cannot be taken out.

Next, when running the tape at constant speed during recording and playback, the 29th
As shown in the figure, the center gear 35 of the center pulley 35
As shown in FIG. 30, the transmission gear 361 that is always meshed with the constant speed gear 123VC of the right reel stand 12 is designed to mesh with the constant speed gear 123VC of the right reel stand 12. In this case, the above RFC or P
When the LAY operation panels 242 and 244 are operated, the motor 19
is rotationally driven, thereby causing the transmission gear 361 to move to the 29th position.
The transmission gear 361 is rotated clockwise in the figure, and the rotated transmission gear 361 meshes with the constant speed gear 123.

Here, as shown in FIG. 31, the center gear 35
1. Both helical gears are used for the transmission gear 36 and the constant speed southeast 123. Therefore, when the center pulley 35 is rotated, a buoyant force is generated in the axial direction of the transmission gear 361 due to the nature of the helical gear, and the rotation center axis I of the transmission gear 361 is the rotation center of the center gear 35. It is automatically regulated to be parallel to the axis ■. Therefore, the center pulley 35 and the right reel stand 12 are positioned so that the rotation center axis I of the center gear 35 and the rotation center axis II of the constant speed gear 123 are parallel to each other, and the center pulley 35 and the right reel stand 12 are
1, the transmission gear J 61 i,t
The center axis of rotation I is the OJ axis III and I during both rotations.
Position it so that it is parallel to ll and support it on the constant speed grate 36.
If the 7 transmission gear 36 is supported by the constant speed plate 36 with some wobbling, the center gear 3
51 is rotated, its rotation center axis I is automatically regulated to be parallel to the rotation center axis ■ of the center gear 35, so that there is no support when meshing with the constant speed gear 123. be. Therefore, it is only necessary to accurately position the center pulley 35 and the right reel stand 12, and the work of attaching the transmission gear 361 to the constant speed plate 36 becomes easy, so that the assembly work as a whole is facilitated. I can do it.

In short, the transmission gear 361 is always engaged with the driving side gear (center gear 351) to which the rotational force from the motor 19 is applied, and the transmission gear 36 is brought into contact with and separated from the driven side gear (constant speed gear 123). By doing so, the above effects can be obtained. Further, by using a helical gear, noise during transmission of rotational force is reduced compared to a normal gear, and it is particularly suitable for audio equipment such as a tape recorder.

Next, as described above, the control lever 40 operates the tape fast forward 91 for rewinding, pausing, cueing, and reviewing, the FF lever 42, the REW lever 4s, the constant speed plate 361, the head slide '14, and the pinch lever 181. etc., respectively, to perform predetermined operations. Here, when the tape is running at a constant speed, the PAU'
SK operation board 246.

When you operate ?, as shown in Figure 32, ? The III control lever 40 is rotated clockwise in the figure. At this time, first, the first arm portion 40475E of the control lever 40
7t is engaged with the engaging portion 367 of No. 6.

The constant speed grate 36 is moved clockwise by K ml in FIG.
1 of the right reel stand 12 is separated from the reel stand 12, and one rotation of l on the right reel stand 12 is stopped.

Thereafter, the third arm 406 of the control arm 40 is engaged with the rotating shaft 187 of the pinch roller 18, and the pinch roller 1
8 is spaced apart from the capstan 17. That is, at the time of temporary stop, the timing is set by the control reno 40 so that the rotation of the right reel stand 120 is stopped and the pinch roller 18 is then separated from the capstan 17. And when you pause like Jin,
First, the rotation of the right reel stand 12 is stopped to stop tape winding, and then the pinch roller 8 is moved to the capstan 17.
By separating the tape from the tape, it is possible to prevent bouncing sounds from being recorded on the tape, especially when a pause is made during recording.

It is also assumed that the REW operation panel 243 is operated while performing a review operation while the tape is being played back. Then, as explained in FIG. 32, the control lever 40 is rotated clockwise in the figure, the transmission gear 36 is disengaged from the constant speed gear 123, and then the pinch roller 8 is separated from the capstan 17. be done. After that, as shown in FIG.
The EV lever 430 control section 437 is the second
The transmission gear 43 is no longer restricted by the arm portion 405 of the
1.432 are meshed with the high speed gear 353 and the reversing gear 134, respectively, and the left reel stand 13 is rotated. That is, when directly transitioning from the playback state to the review state, the right reel stand 120 rotation is first stopped, then the pinch roller 18 is separated from the capstan 17, and then the left reel stand 13 is controlled to rotate. The timing is determined by a lever 40. When the playback state is directly transferred to the review state in this way, the pinch roller 18
After separating from the capstan 17, the left reel stand 13
The capstan 17, the pinch row 218, and the left reel stand 13 are rotated to run the tape.
This can prevent the tape from being pulled apart by the tape.

Therefore, when switching from a constant speed running state to a pause state and from a regeneration state to a review state, the timing can be set using the control lever 4Q.
With a simple configuration, a smooth switching operation can be performed without inconveniences such as recording of popping sounds on the tape or the tape being stretched.

Furthermore, the control lever 40 performs the following functions. That is, assume that, for example, the 5TOP operation panel 241 is operated in the tape fast forwarding state shown in FIG. 17. Then, the FF operation plate 245 is returned to the non-operation position, and in conjunction with this, as mentioned above, the control lever 4
0 is rotated counterclockwise in FIG. 17 by the biasing force of torsion spring 4 shown in FIG. 14, and returned to the original position shown in FIG. 14. For this reason, the control lever 40
The first arm portion 404 of the FF lever 42 presses the control portion 428 of the FF lever 42 downward in FIG.
2 is rotated counterclockwise in FIG.
21° 422 are separated from the high speed gear 353 and the FF gear 124, respectively.

It is also shown in FIG. 5TO in tape rewind state
When the P operation panel 241 is operated, the RE'liV operation panel 24
3 is returned to the non-operating position, and in conjunction with this, the control lever 40 is rotated counterclockwise in FIG. 19 by the action of the torsion ring 4 and returned to the position shown in FIG. 14.

Therefore, the second arm portion 405 of the control lever 40 presses the control portion 437 of the R-bar 43 downward in FIG. 19, and the Rw lever 43 is rotated counterclockwise in FIG. The transmission gears 431 and 432 are connected to the high speed gear 35.
3 and reversing gear 134, respectively.

Here, the FF lever 42 and the IW lever 43 are always in the first position due to the action of a spring 44 shown in FIG.
In Figure 4, it is biased counterclockwise. For this reason, the 17th
In the tape fast-forwarding and rewinding states shown in Figures and Figure 19,
When the 5TOP operation plate 24 is operated and the FF and RF:W operation plates 245 and 243 are returned to the non-operation position, the FF and REW levers 42 and 43 are The FF and RFXwFF levers 42 are returned to their original positions by the biasing force of the spring 44.The following describes how the FF and RFXwFF levers 42 are returned to their original positions by the control lever 40 despite the biasing force of the spring 44. Let me explain the reason.

First, in the tape fast forwarding state shown in FIG.
24, and are in a position where they are engaged with each other so as to bite into each other.

For this reason, especially when the tape reaches the end, the biting force becomes large near the end, and the 5TOP operation panel 2
Even if the FF operation plate 245 is returned by operating the
4, and the FF lever 4 is held in a state where it is engaged with the FF lever 4.
2 may not be able to be returned to its original position. Similarly, in the tape rewinding state shown in FIG. 19, the transmission gears 431 and 432 are in a position where they mesh with the high speed gear 353 and the reversing gear 134, respectively. Because of this, the biting force becomes large especially when the tape reaches the end or near the end, and the REW operation board 2 must be operated by operating the 5TOP operation panel 241.
'43 is returned, the transmission gears 431 and 432 remain meshed with the high speed gear 353 and the reversing gear 134, respectively, and the spring 4
In some cases, the REIW lever 43 cannot be returned to its original position with only the urging force of 4. Moreover, even though there is such a problem, if the biasing force of the above-mentioned Sgeling ring 44 is increased, the FF and REIW operation panels 245.
This poses a problem in that the operation of the 243 becomes difficult and is contrary to the idea of making the software more operational.

Therefore, as described above, when the high speed running state is changed to the stopped state, the return force of the control lever 40 causes the F
By forcibly returning the F and RFIWFF levers 4243 to their original positions, the transmission gear 421.
422 and 431° 432 are connected to high speed gear 353. The FF gear 124 and the high speed gear 3530 can be separated from the reversing gear 134, respectively, and malfunctions can be prevented. Since the control lever 40 is driven by the rotational force of the high-speed drive gear 30, even if the force of the torsion spring 41 that provides a return force to the control lever 40 is strengthened, the FF and Rw operation plates 245 .243CD
It does not make the operation difficult and is suitable for soft-touch operation. In addition, the transmission gears 421, 422, 43, and 432 are meshed with the high-speed gear 3531, the FF gear 124, and the high-speed gear 3531 and the reversing gear 134, respectively, so that the rotational force is transmitted reliably and smoothly. It is something that can be done.

Here, as described above, the operation of forcibly returning the FF and REW levers 42, 43 by the return force of the control lever 4o is performed by pressing the 5TOP operation panel 241 in the cue and review state shown in FIGS. 22 and 23. The same explanation can be given when operating .

Further, a case will be described in which the PAUSE operation panel 246 is operated in the queue and review states. First, FIG. 34 shows a state in which the PAUSE operation panel 246 is operated in the queue state. That is, in this cue state, the high-speed lock lever 38 is held at a position where its locking portion 382 is locked with the locking portion 305 of the high-speed drive gear 30, so even if the PAUSE operation plate 246 is operated, the high-speed lock lever 38 The lock lever 38 remains in the cue state without being rotated in any way. And the above PAU
A long hole 51 is formed at the upper end of the SE operation plate 246 in FIG. 34, and a shaft 512 projecting from one end of the pause lever 51 is loosely fitted into the long hole 511. This I
- The other end of the misalignment gear 51 is the main chassis 1.
It is rotatably supported by being fitted onto a rotation shaft 513 protruding from. And the above pause lever 5
A substantially central portion of a torsion spring 514 is wound around the rotation shaft 513 of the torsion spring 514 . Both ends of this torsion spring 5140 are locked to locking portions 515 and 516 formed on the pause lever 51, respectively. The locking portion 515 of the torsion spring 514
The end portion of the side that is locked is the third portion of the bent engagement piece 455 formed at the upper end portion in FIG. 34 of the return slider 45.
It is extended until it reaches the upper part in Figure 4. Furthermore, a retaining portion 456 that engages with the control portion 428 of the FF lever 42 is formed at the lower portion of the return slider 45 in FIG.

And now, the PLAY operation panel 244 and the FF operation panel 245
If both are operated, the tape is run in a queue state as described above. At this time, the contact portion 453 of the FF operation plate 245 is engaged with the contact piece 451 of the return slider 450, and the return slider 45 is slid upward in FIG. 34.

Also, at this time, since the PAUSg operation panel 246 is not operated, the 34th PAUSg operation panel 246#i
34, the Bose lever 5 is rotated clockwise in FIG. 34, so that the torsion spring 514
The end portion of the return slider 45 is not engaged with the bent engagement piece 455 of the return slider 45. In this situation, PAUSE
Assume that the operation plate 246 is operated in the upward direction in FIG. 34 and is locked by the zoshu sush mechanism 26 at that operation position. Then, in conjunction with the operation of the PAUSE operation plate 246, the I-slipper 51 is rotated counterclockwise in FIG. Therefore, the return slider 45 is urged downward in FIG.

At this time, the downward movement of the return slider 45 in FIG. 34 is blocked by the contact piece 451 of the return slider 45 coming into contact with the contact portion 453 of the FF operation plate 245. The cassette recorder continues to be in the queue state.

In such a queue state, when the 5TOP operation panel 241 is operated, the PLAY operation panel 244 and the FF operation panel 24
5 is returned to the non-operating position. Therefore, the return slider 45 is slid downward in FIG. 34 by the biasing force of the torsion spring 514. At this time, the FF lever 420 control section 428 is pressed by the retaining section 456 of the return slider 45, and the FF lever 42 is forcibly rotated counterclockwise in FIG.
is removed from the high speed gear 353 and the FF gear 124.

In addition, Fig. 35 shows the PAUSE operation panel 24 in the review state.
6 indicates the operated state.

That is, in this case as well, as in the queue state, the high-speed lock lever 38 is held at a position where its locking portion 382 is locked with the locking portion 305 of the high-speed drive gear 30, so the PAUSE operation plate 246 cannot be pressed. Even when operated, the high-speed lock lever 38 remains in the review state without being rotated in any way. And the above return slider 4
A retaining portion 458 that can be engaged with an engaging portion 457 formed on one side of the REW lever 43 is formed on one side of the REW lever 43 .

And now, the PLAY operation panel 244 and the REW operation panel 24
If both 3 and 3 are operated, the tape is run in the review state as described above. At this time, the REW operation panel 243
The contact portion 454 of the return slider 450 is engaged with the contact piece 452 of the return slider 450, and the return slider 45 is slid upward in FIG. 35.

Further, at this time, since the PAUSE operation plate 246 is not operated, the end of the torsion spring 514 is not engaged with the bent engagement piece 455 of the return slider 45. In this state, when the PAUSE operation plate 246 is operated, the end of the torsion slider ring 514 presses the bent engagement plate 455 of the return slider 45, so the return slider 45 is urged downward in FIG. However, the return slider 450 is prevented from sliding downward in the figure because its contact piece 452 comes into contact with the contact portion 454 of the REW operation plate 243. The car set recorder continues to be in the review state.

In such a review state, when the 5TOP operation panel 241 is operated, the PLAY operation panel 244 and the REW operation panel 24
3 is returned to the non-operating position. Therefore, the return slider 45 is pushed by the urging force of the spring 514.
It is slid downward in FIG. 35. At this time, the engaging part 457 of the R alignment bar 43 is pressed by the retaining part 458 of the return slider 45, and the REW lever 43 is forcibly rotated counterclockwise in FIG. The gears 431 and 432 are separated from the high speed gear 353 and the reversing gear 134.

i.e. in queue or review state and PAUSE
While the operation panel 246 is being operated, the 5TOP operation panel 24 is operated to select the FF or REW operation panel 245.2.
Even if 43 is returned to the non-operating position, the PAUSE operation panel 2
46 is being operated, the control lever 40 is held in the position shown in FIGS. 34 and 35.

For this reason, the FF and Rgw levers 42 and 43 cannot be forcibly returned to their original positions by the control lever 40, so the transmission gears 421, 422 and 4
31.432 is the high speed gear 353. The FF gear 124, the high speed gear 3531, and the reversing gear 134 may be meshed with each other and held. Therefore, in such a case, by using the return slider 45, the FF
and the RLW levers 42 and 43 are forcibly returned to their original positions.

Therefore, when the FF and REW operation plates 245 and 243 are returned to the non-operating position by the control lever 40 or the return slider 45, the FF and RW levers 42 and 43
was forced to return to its original position, so transmission gear 4
21.422 and 431.432 are high speed gears, 953
, F F gear 124 and high speed gear 3531 reversing gear 1
34 and can prevent malfunctions.

Then, as mentioned above, the FF and RFIXw operation panel 24
A feature of the present invention is that when the 5.243 is returned to the non-operating position, the FF lever 42 and the RIiW lever 43 are forcibly returned to their original positions.

Next, as shown in FIG.
An eject slider 22 is supported by the main chassis 11 and is interlocked with the operation of the main chassis 11 . Here, the above 5TO
When the other REC1RFW, PLAY, and FF ridge plates 242 to 245 are being operated in advance, the P operation board 241 will operate each ridge plate 242 to 2 in the first operation.
It is possible to perform a so-called double eject function in which the eject slider 22 is released at the operating position 45 and the eject slider 22 is slid upward in FIG. 36 in the second operation to open the cassette lid (not shown). be. Further, approximately at the center of the eject slider 22 is an engaging portion 221 that can engage with one end portion of the stop lever 52.
is formed. This stop lever 52 has a rotation shaft 52 formed in the main chassis 11 at its substantially central portion.
1, it is rotatably supported. The other end of the stop lever 52 is connected to a retaining portion 522 that protrudes from approximately the center of the head slider 14.
It is adapted to be engaged from above in FIG. 36. Therefore, when the 5TOP operation plate 241 is operated, the eject slider 22 is slid upward in FIG. 36 and the stop lever 52 is rotated clockwise in the figure. Therefore, since the other end of the stop lever 52 presses the engaging portion 522 of the head slider 14, the head slider 14 is slid downward in FIG. 36.

Here, when the P LAY operation plate 244 is operated, for example, the constant speed drive gear 29 is engaged with the drive gear 28 and driven to rotate, as shown in FIG. At this time, the constant speed drive gear 290 is in the middle of rotation (for example, the state shown in FIG. 8)
Assume that the rotation of the motor 19 is stopped due to exhaustion of battery power. Then, the constant speed drive gear 29 shifts to the eighth
The rotation is stopped at the intermediate position shown in the figure. At this time, as shown in FIG. 36, the constant speed drive lever 32 is also stopped at an intermediate position, and the recording/reproducing head 15 and pinch roller
etc. are stuck in the head insertion opening and the pinch roller insertion opening of the tape cassette and are stopped. Therefore, there is a problem that the tape cassette cannot be removed. In this situation, 5T
Even if the OP operation plate 241 is operated to return the PLAY operation plate 244 to the non-operating position, the constant speed drive gear 29 does not return to its original position.

However, by operating the 5TOP operation plate 24 again, the eject slider 22 is slid upward in FIG. 36, so the head slider 14 is forcibly moved downward in FIG. 36 via the stop lever 52. be slid. Therefore, the pinch lever 181 is also rotated counterclockwise in FIG. 36, and the tape cassette can be taken out.

Therefore, if the rotation of the motor 19 is stopped due to consumption of battery power while the constant speed drive gear 29 is in the middle of rotation, by operating the 5TOP operation plate 241,
The tape cassette can be taken out, and protection measures against battery power consumption can be taken with a simple configuration.

Next, the music selection (
The cueing) mechanism will be explained. That is, this song selection mechanism detects an unrecorded portion between songs in the cue and review states described above, and when the unrecorded portion between songs is detected, it energizes and drives the solenoid plunger 23 shown in FIG. By sliding the plate 25, PLAY
FF and RL leaving the operation panel 244? This is done by unlocking the W operation panel 245°243. That is, as shown in FIG. 37, R fake, PLAY
Engagement portions 25 to 253 for engaging with the lock plate 25 to lock each ridge plate 243 to 245 at the operating position are formed on each of the operation plates 243 to 245 of the FF as shown in the figure. There is. Each of the engaging portions 251 to 253 is
The engagement interval t of the REW and FF operation plates 243 and 245 is greater than the engagement interval t of the engagement portion 252 of the PLAY operation plate 244.
' is set to be shorter. For this reason,
By sliding the lock plate 25 by a distance t" which is larger than the engagement interval t' and which does not reach the engagement interval tK, the i9, FF and R11M operation plates 243, 245 are unlocked, and the PLAY operation plate 244 in the locked position.

Here, as shown in FIG. d'-3'8 and FIG. H-Search Reno? -53 is loosely fitted into a through hole 531 formed at one end. The search lever 53 is formed in an abbreviated shape, and its corner portion is fitted onto a rotation shaft 532 protruding from the main chassis 11, so that it is rotatably supported. Further, an engaging portion 533 is formed at the other end of the search lever 53 and can be engaged with a retaining piece 254 formed at one end of the lock plate 25. Further, an engaging portion 534 is formed near the retaining portion 533 of the search lever 53 and is capable of engaging with a stop plate 54 attached to the main chassis 1 . Additionally, the other end of the search reno Z-53 has an engaging piece 25 formed on one side of the lock plate 25.
5 and prevents the lock plate 25 from sliding to the left in FIGS. 38 and 39.

When an unrecorded part between songs is detected in the key or review state, the solenoid pusher 23 is energized and the drive piece 231 is pulled upward in the figure as shown in FIG. 40, and the search lever 53 is rotated clockwise in FIG. Then, the retaining part 5 of the search lever 53
33 presses the engagement piece 254 of the lock plate 25, causing the lock plate 25 to slide to the left in FIG. here,
Rotate the search lever 53 in the clockwise direction in FIG.
It is regulated until the retaining portion 534 comes into contact with the stop grating 54. At this time, the lock plate 25 is slid by the above-mentioned distance L'', and in this state, the retaining portion 535 of the search lever 53 engages the retaining piece 255 of the lock plate 25.
The lock plate 25 is prevented from sliding to the left in FIG. 40. Therefore, the FF or REW operation plates 245, 243 are released from the lock plate 25 and returned to the non-operating position, and the PLAY operation plate 244 is released from the lock plate 25.
The piece is left in the mouth, and the original selection (the cue) is performed at this point.

Therefore, as described above, the retaining portion 534 formed on the search lever 53 is brought into contact with the stop plate 54, thereby regulating the amount of rotation of the search lever 53. drive piece 2 of jar 23
The amount of rotation of the search lever 530 can be determined regardless of the retraction stroke of the solenoid granger 23, and it is possible to prevent the drive piece 231 of the solenoid granger 23 from being magnetized at the retracted position. The operating voltage can be guaranteed. Further, the retaining portion 536 of the search lever 53 prevents the lock plate 25 from coming into contact with the stop plate 54 and sliding to the left in FIG. 40 beyond the actual position. I can do it. That is, since each of the ridge plates 243 to 245 such as RLW, PLAY, FF, etc. can be operated by soft touch, they are set so that the operating force is extremely light. - The lock plate 25 for locking each of the operation plates 243 to 245 at the operation position is also configured to be slid with extremely light force. Therefore, the search lever 53 is moved to the engaging portion 534 by the solenoid granger 23.
If the search lever 530 is rotated instantaneously as if it hits stop shake (-) 54, the lock plate 25 will be further slid to the left in FIG. be. If this happens, a problem arises in that not only the FF and Rw operation panels 245 and 243 but also the PLAY operation panel 244° are unlocked without being fixed.

However, when the search lever 53 is rotated, the locking portion 536 is engaged with the locking piece 255 of the locking plate 25, so that the locking plate 25 is locked by penetration.
can be prevented from being slid by a distance greater than the interval t", and erroneous cueing operations can be prevented.

Next 5, AS used in this cassette tape recorder
The O mechanism will be explained. That is, as shown in FIG. 41, the center gear 351v of the center pulley 35
Ago gear 55 is meshed with c. This ASO gear 54 is a rotating shaft 5 installed in the main chassis 11.
51 and is rotatably supported.

On one side of the ASO gear 55, a cam portion 552 and a cam portion 55 are provided eccentrically with respect to the rotating shaft 55.
A near the part of the outer periphery of 2 that is close to the rotating shaft 551.
An engaging portion 553 is formed that tapers toward the tip in the rotational direction of the SO gear 550.

Here, the ASO gear 550 rotation shaft 651 has a fourth
As shown in FIG. 2, a long hole 561 formed at one end of the ASO detection lever 56 is loosely fitted and prevented from being removed with a washer 554. As shown again in FIG. 41, this elongated hole 561 is formed in a substantially curved shape. Furthermore, an engagement protrusion 562 is formed at one end of the ASO detection lever 56 to be engaged with the cam portion 552 and engagement portion 553 of the A80 gear 55 as described later. Well, the above AS
The right reel stand 12 is located approximately at the center side of the O detection lever 56.
A curved portion 563 is formed to fit around the circumferential side of the bearing portion 122 . Further, a pair of protrusions 564 and 565 are formed on both sides of the curved portion 563 of the ASO detection lever 66. These protrusions 564 and 565 are designed to be able to fit with both ends of a friction plate 125 provided on one side of the constant speed gear 123 of the right reel stand 12, respectively. Although the friction plate 125 is rotated in conjunction with the rotation of the right reel stand 12, it is attached so that its rotation is prevented when a force exceeding a predetermined level is applied.

Further, a long hole 566 is formed near the curved portion 563 of the ASO detection lever 56. A rotation shaft 567 protruding from the main chassis 11 is provided in the elongated hole 566.
is loosely fitted. Furthermore, the ASO detection lever 56
A support shaft 568 is provided protruding from the other end. The center portion of the torsion spring 57 is wound around and supported by the support shaft 568. Both ends of this torsion suspension ring 57 are locked to locking portions 571 formed on the rotation shaft 567 and the Ago detection lever 56, respectively. Therefore, the ASO detection lever 56 is biased so that the rotation shaft 567 is loosely fitted into the upper part of the elongated hole 566 in FIG. In addition, the ASO detection lever 6
A protrusion 569 that can be engaged with a bent piece 581 formed at one end of the ASO slider 58 is formed at the other end of the ASO slider 58 . This ASO slider 58 is supported by the main chassis 11 so as to be slidable vertically in FIG. 41. In addition, the above ASO slider s 8 F
i. By locking a coiled spring 683 between the bent locking piece 582 formed on the negative side thereof and a locking portion (not shown) formed on the main chassis 11, as shown in FIG. Although the ASO slider 58 is biased upward in the drawing, the ASO slider 58 has been slid downward in the figure to the position shown in FIG. 41.

Further, at the other end of the ASO slider 58, an ASO
A retaining portion 584 that can be engaged with one end of the lever 59 is formed. The ASO lever 59 is formed in an abbreviated shape, and its corner portion is fitted onto a rotation shaft 591 protruding from the main chassis 11, so that it is rotatably supported.

The other end of the -E A80 lever 59 is opposed to a bent piece 256 formed at the other end of the lock plate 25.

The operation of the ASO mechanism configured as described above will be described below. First, as shown in FIG.
In the playback state in which the Y operation plate 244 is locked at the operation position by the lock plate 25, the right reel stand 12 is rotated counterclockwise in FIG. 41 by the rotational force of the center gear 351, as described above. There is. Therefore, one end of the friction plate 125 is pressed against the protrusion 565 of the ASO detection lever 56, so the ASO detection lever 56 is urged to rotate clockwise in FIG. 41 about the rotation shaft 567. The engagement protrusion 562
is pressed against the circumferential side of the cam portion 5520 of the ASO gear 55. At this time, since the A80 gear 55 is being rotated in the clockwise direction in FIG. 41 by the rotational force of the center gear 351,
The SO detection lever 56 swings about the rotation shaft 567 under the action of the cam portion 5520, and the tape is stably run in the reproducing state.

Assume that the tape reaches the end in the above-described playback state and the rotation of the right reel stand 12 is stopped.

Then, as shown in FIG. 43, the ASO detection lever 56
Since the biasing force from the right reel stand 12 is no longer applied to the ASO detection lever 56, the ASO detection lever 56 is rotated counterclockwise around the rotation shaft 567 by the action of the cam portion 5520. In this state, the rocking movement is stopped. At this time, ASO is detected and /J-55 is
63 is positioned closest to the circumferential side of the bearing portion 122 of the right reel stand 12. However, since the center gear 351 continues to rotate, the A80 gear 56 is rotated clockwise in FIG. 43.

Therefore, the tip of the engaging portion 553 of the ASO gear 55 is A
The engagement protrusion 562 of the SO detection lever 56 comes into contact with the upper part in FIG.

When the ASO gear 55 is further rotated clockwise in FIG. 43, the engagement protrusion 562 is pressed by the outside of the engagement portion 553 of the ASO gear 55, as shown in FIGS. 44 and 45. Therefore, the ASO detection lever 56 is moved counterclockwise in FIG. 44 by the curved portion 563 slidingly contacting the circumferential surface of the bearing portion 122 of the right reel stand 12 against the biasing force of the torsion swing 57. is rotated. For this reason, ASO detection/? -55 protrusion 569 is Ag
o The ASO slider 58 is engaged with the bent piece 581 of the slider 58, and the ASO slider 58 is slid upward in FIG. 4.4. Then, the engaging portion 584 of the ASO slider 58 engages the ASO lever 5.
9, and the ASO lever 59 is rotated clockwise in FIG. For this reason, ASO Reno-59
The other end engages with the bent piece 256 of the lock plate 25, and the lock plate 25 is slid to the left in FIG. Therefore, the PLAY operation plate 244 is released from the lock plate 25, and an automatic stop is effected. Also,
The automatic stop operation described above is not limited to playback, but also during recording,
It operates in the same way during fast forwarding and rewinding.

Here, as shown in FIG. 46, the above ASO is detected/?
-56, a protrusion 601 that can be held at one end of the ASO control lever 60 is formed at the other end. This AS
The O control lever 60 is formed in an abbreviated shape, and its corner portion is fitted onto a rotation shaft 602 protruding from the main chassis 11, so that it is rotatably supported. A tilted portion 604 that can be engaged with an engaging portion 603 protruding from the high-speed drive lever 37 is formed at one end side of the ASO control lever 60. When the high-speed drive lever 37 is rotationally driven in the counterclockwise direction in FIG. 46, this inclined portion 604 is pressed by the engaging portion 603 and rotates the ASO% IIJ control lever 60 in the clockwise direction in FIG. It is designed to be moved. The other end of the ASO control lever 60 is engageable with the drive portion 326 of the constant speed drive lever 32. Furthermore, a coiled spring 606' is engaged between a bent locking piece 605 formed on one end side of the ASO control lever 60' and a locking part (not shown) formed on the main chassis 1. By being attached, it is urged to rotate counterclockwise in FIG. 46.

When the cassette tape recorder is in a stopped state, that is, when the high-speed drive lever 37 and the constant-speed drive lever 32
is in the non-driving position shown in FIG. 46, ASO control is performed. -6o's one end presses the protrusion 60 of the ASO detection lever 66, and moves the ASO detection lever 56 to the rotation shaft 5.
67 in the clockwise direction in FIG. 46, and the engagement protrusion 562 is held in pressure contact with the cam portion 552 of the ASO gear 55. Here, the REC; REW
, PLAY, FF, etc. block plates 242 to 24
5 is operated and the motor is driven at high speed as shown in Fig. 47.
! When the par 37 and the constant speed drive lever 32 are rotated counterclockwise, the sheep retaining part 603 and the driving part 326 are moved to the AS position.
The inclined portion 604 and the other end of the O control lever 60 are pressed to rotate the ASO control lever 60 clockwise in FIG. 47 against the biasing force of the spring 606. For this reason,
One end of the ASO control lever 60 is the ASO detection lever 56
Since the ASO detection lever 5 is detached from the protrusion 601 of
6 is capable of freely swinging motion and the automatic stopping operation described above.

Therefore, as described above, in the stopped state, the ASO detection lever 56 is held by the ASO control lever 60 with its engagement protrusion 562 in pressure contact with the cam part 552 of the ASO gear 55. When the detection lever 56 does not wobble and the tape runs, the tape run can be reliably started without an erroneous automatic stop operation, and malfunctions can be prevented. Further, the ASO control lever 60 is moved to A by the driving force of the high speed drive lever 37 and the constant speed drive lever 32.
Since the SO detection lever 56 is detached from the protrusion 601, the RFC.

Each ridge board 242 such as RFW, PLAY, FF, etc.
This does not make the operations of 246 to 246 difficult. In this regard, in conventional cassette tape recorders, RF
When the AS is stopped, the AS
The O detection lever 56 is held at the position shown in FIG. 46, and when each of the operation plates 242 to 245 is operated, the abductor is separated from the ASO detection lever 56 in conjunction with the operation.

Therefore, the operation of each of the ridge plates 242 to 245 becomes difficult as the above-mentioned members are moved, which is contrary to soft-touch operation.

However, as described above, the high speed drive lever 37 and the constant speed drive lever 32 driven by the rotational force of the motor 190
By rotating the ASO control lever 60 with the driving force of REC, REW.

This is suitable for soft-touch operation without making the operation of the respective ridge plates 242 to 245 such as PLAj and FF difficult.

Furthermore, as shown in FIG. 42 again, one end of the ASO inspection lever 56 is supported by the ASO gear 550 rotating shaft 55 loosely inserted into the elongated hole 56 and prevented from being pulled out with a washer 554. ing.

Here, as shown in FIG. 45, the Ago detection lever 56
When the engaging protrusion 562 of the ASO gear 55 is engaged with the engaging part 553 of the ASO gear 55, the ASO detection lever 56 is not only rotated counterclockwise in FIG. A biasing force is also applied to the middle and lower portions. However,
The ASO detection lever 56 is connected to the rotation axis 551 of the ASO gear 55.
is loosely inserted into the elongated hole 56 and is supported so as to be prevented from being removed by a washer 554, so that the ASO detection lever 56 is moved downward in FIG.
It is possible to prevent the gear 55 from being disengaged from the engagement portion 553 with a simple configuration, and to perform a reliable automatic stopping operation.

Regarding this point, conventionally, the 45th position of the ASO detection lever 56
Since the ASO detection lever 56 was prevented from moving downward in FIG. 45 by bringing the lower surface in the figure into contact with another part, the structure became complicated and a reduction in size and weight could not be expected. There is.

However, by loosely inserting the rotary shaft 551 of the ASO gear 65 into the elongated hole 561K formed in the ASO detection lever 56 as described above and preventing it from coming out with the washer 554, a single simple configuration is suitable for downsizing and weight reduction. , it is possible to perform a reliable automatic stop operation.

Furthermore, in the cassette tape recorder described here, when the tape reaches the end (starting end from the playback side) in the review state, the REIW operation panel 242 is automatically returned to the non-operating position, and the P LAY operation panel 244 is By holding it in the locked position, it is possible to perform a so-called autoplay operation of switching to the playback state. That is, as shown in FIG. 48, in the review state, the high-speed drive lever 37 is rotated in the counterclockwise direction in the figure.
Transmission gears 431 and 432 are meshed with high speed gear 353 and reversing gear 134, respectively. At this time, one end of the high-speed drive gear 37 is in the following engagement relationship with the ASO slider 58. That is, in FIG. 49, a sloped portion 585 that can be engaged with one end of the high-speed drive lever 37 is formed on one side of the ASO slider 58. Here, in the tape stop state and tape constant speed running state, the high-speed drive lever 37 is not engaged with the inclined portion 585 of the ASO slider 58, as shown by the lower dotted chain line in FIG. Then, the ASO lever 5
9 is formed with a stepped portion, and the engaging portion 584 of the ASO slider 58 is opposed to the first stepped portion 592. For this reason, for example, an automatic stop operation is performed in the playback state, and the ASO
When the slider 58 is slid downward in FIG.
92, the ASO lever 59 is rotated by an amount corresponding to sliding the lock plate 25 beyond the distance (the engagement distance t described above) that allows the PLAY operation panel 244 to be unlocked.

In addition, in the high-speed running state, the high-speed drive lever 37 is engaged with the inclined portion 585 of the ASO slider 58, as shown by the solid line in FIG. 49, and the ASO slider 58 is moved to the position shown by the solid line in FIG. Ru. At this time, the engaging portion 584 of the ASO slider 58 is opposed to the second step portion 593 of the ASO lever 59. Therefore, when the automatic stop operation is performed and the ASOS rudder 58 is slid downward in FIG. REW
Alternatively, the lock plate 25 is rotated by an amount corresponding to sliding the lock plate 25 beyond the distance that allows the FF operation plates 243 to 245 to be unlocked (the above-mentioned engagement interval 2/). However, the amount of rotation of the ASO lever 59 at this time is set to such an extent that the lock plate 25 does not slide within the engagement interval ti.

Therefore, in the review state, the ASO slider 58 is set to the fourth position.
Since the lock plate 25 is in the position shown by the solid line in FIG.
Since the W operation panel 243 is slid to the unlocking position, the playback state is automatically entered, and an autoplay operation is performed here.

Therefore, using the driving force of the high-speed drive lever 37, the AS
The O slider 58 is shown in Fig. 49 with a dashed line and a solid line.
Since the sliding amount of the lock plate 25 is varied by regulating the position, the auto play operation can be performed without making the operations of the RIM operation plate 243 and the PLAY operation plate 244 difficult. Regarding this point, in the conventional cassette chip recorder, the position of the ASOS lath 158 is regulated in conjunction with the operating pressure of the RF5iI operating plate 243, and the sliding amount of the lock plate 25 is variable.
This has the disadvantage that the operation of the operation panel 243 becomes difficult. However, by regulating the position of the ASO slime 58 using the high-speed drive lever 37 driven by the rotational force of the motor 19, the RW operation plate 2
The automatic play operation can be performed without making the 43 heavy, making it suitable for soft-touch operation.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

〔Effect of the invention〕

Therefore, as detailed above, according to the present invention, the rotational force of the motor is transmitted to the rotating body linked to tape running by meshing the gears in a rotational force transmission relationship such that they bite into each other. The gears are forcibly disengaged when the tape running operating member is returned to the non-operating position, which prevents malfunctions and is suitable for soft-touch operation. can be provided.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an outline of a cassette tape recorder to which the present invention is applied, Fig. 2 is a plan view showing the main chassis removed from Fig. 1, and Fig. 3 is a constant speed drive. A configuration diagram showing the relationship between gears and constant speed drive levers, etc., FIGS. 4 and 5 are configuration diagrams showing the relationship between the PLAY operation panel and RFC operation panel, constant speed port, and flavor, respectively, and FIG. 6 is the Herad slider. 7 is a plan view showing the relationship between the pinch lever and the constant speed drive lever, FIG. 7 is a plan view showing the rotational force transmission relationship between the motor, flywheel, and right reel stand, and FIGS. 8 to 10 are FIG. 3, respectively. Figure 11 is a configuration diagram showing the relationship between the high-speed drive gear and the high-speed drive lever, and Figures 12 and 13 are the RFIW operation panel and FF, respectively.
Configuration diagram showing the relationship between the operation plate and the high-speed lock lever, 1st
Figure 4 is a plan view showing the rotational force transmission relationship during high-speed tape running;
15 and 16 are respectively explanatory diagrams of the operation of FIG. 11, and FIG. 17 is a plan view showing an embodiment of the tape recorder device according to the present invention, showing the tape fast forwarding state. Figure 18 is a configuration diagram showing the relationship between the high-speed drive gear and the high-speed lock lever in the high-speed running state.
FIG. 9 is a plan view for explaining the same embodiment and shows the tape rewinding state, FIG. 20 is a configuration diagram showing the relationship between the PAUSE operation plate and the high-speed lock lever, and FIGS. 21 to 23.
The figures are plan views showing a pause state, a cue state, and a review state, respectively. Fig. 24 is a configuration diagram showing a mechanism for bringing the erasing head into and out of contact with the tape during recording and playback. Figs. 25 and 26 are respectively The operation explanatory diagram of FIG. 24,
FIGS. 27 and 28 are a configuration diagram and an operation explanatory diagram of the release lever, respectively, FIGS. 29 and 30 are plan views showing the rotational force transmission relationship during tape constant speed running, and FIGS. 31 and 29 are respectively A side view showing details of each gear in FIG. 30,
32 and 33 are operation explanatory diagrams showing the timing relationship by the control lever, respectively, and FIGS. 34 and 35 are explanatory diagrams for explaining the same embodiment, respectively. Fig. 36 is a plan view showing the mechanism that returns the head slider to its original position when the battery power is exhausted, and Fig. 37 shows the RE%V, PLAY, FF operation panel. 38 and 39 are a plan view and a side view showing the song selection (cue) mechanism, respectively. FIG. 40 is an explanation of the operation of FIGS. 38 and 39. 41 is a configuration diagram showing the ASO mechanism, FIGS. 42 to 45 are respectively explanatory diagrams of the operation of FIG. 41, and FIGS. 46 and 47 are configuration diagrams and operation explanatory diagrams of the ASO control lever, respectively. Figures 48 and 49 are a plan view showing the autoplay mechanism and a side view of its essential parts, respectively. 11... Main chassis, 12... Right reel stand, 1
3...Left reel stand, 14...Bed slider, 15
...Recording/reproducing head, 16...Erasing head, 17...
Cab stun, 18... Pinch roller, 19... Motor, 20... Theno counter, 21... Erroneous erasure prevention lever, 22... Eject slider, 23...
Solenoid plunger, 24... operating section, 25...
Lock plate, 26... Butshu-gushu mechanism, 27.
...Flywheel, 28...Drive gear, 29...
Constant speed drive gear, 30...High speed drive gear, 31...A
SO mechanism, 32... Constant speed drive lever, 33... Constant speed lock lever, 34... REC drive slider, 35.
...Center pulley, 36...Constant speed plate, 37.
・・High-speed drive lever, 38 ・・High-speed lock lever 13
9...High-speed drive slider, 40...Control lever, 4
1... Torsion spring, 42... FF lever, 43... REW lever, 44... Spring, 4
5... Return slider, 46... RFC slider, 4
7...REC lever, 48...REC drive lever,
49... Release lever-150... Switch slider, 51... Pause lever, 52... Stop lever, 53... Search lever, 54... Struff plate, 55... As. m car, 56...ASO detection lever, 57...Torsion spring, 58...ASO slider, 59.
・・ASO lever, 60 ・ASO control lever. Applicant's Representative Patent Attorney Takehiko Suzue Figure 18 Figure 41 531I 5 1jIh43wA 44 all Figure 45 Figure 46 Figure 47 gi 48IjA 4919

Claims (1)

[Claims] In conjunction with the operation of the tape running operating member, the motor is movable to a rotational force transmission position where the rotational force of the motor is transmitted to the rotating body that is linked to tape running, and the gears are in a rotational force transmission relationship such that they bite into each other. A tape running member that is meshed with each other, a rotating member to which the rotation of the motor is transmitted in conjunction with the operation of the tape running operating member, and a rotating member that is driven by the rotational force of the rotating member to rotate the tape running member. At the same time, with the tape running operating member returned to the non-operating position, the tape running member is forcibly moved to the non-rotational force transmitting position, and the gear is moved to the force transmitting position. 1. A tape recorder device comprising: a control member for releasing engagement.