JPS6238780B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the invention of a tape recorder in which head shifting, fast forwarding and rewinding, and other operations are automatically and easily carried out by a driving mechanism such as a motor. It is designed to appropriately reduce size and weight, reduce costs, and ensure operational stability.

Conventionally used tape recorders operate the head, pinch roller, and idler using the springing force to form the tape running state, so the springing force is used for fast forwarding, rewinding, or ejecting. This method has the disadvantage that it requires operation against a large amount of pressure, making the operation considerably difficult.
For this reason, some mechanisms have been proposed in which a cam is used to release the pinch roller, idler, and head from the compressed state by resisting the springing force, and to perform loading/unloading operations. After all, it depends only on the operating power of the operator and is inferior in operability. In addition, some proposals have been made regarding using an electromagnetic plunger to perform the head crimping operation and auto-reverse operation as described above, but as mentioned above, it is possible to use an electromagnetic plunger to perform the head, pinch roller, and idler. In order to operate the electromagnetic plunger instantaneously, a strong actuating force and a large stroke are required. Therefore, the electromagnetic plunger itself is large, and the electric circuit for controlling it must also have a large capacity. However, there is a disadvantage that the recorder itself becomes larger and the cost increases.

The present invention was devised after repeated studies in view of the above-mentioned circumstances, and uses an intermittent gear with a partial cutout for canceling the driving relationship caused by the drive gear to drive heads, pinch rollers, idlers, etc. In a device in which the control member for controlling the release of the tape running mechanism is operated against the urging force in the release direction by an elastic member and is locked by a locking means, a control lock is provided on the operating lever for fast forwarding and rewinding. A member is arranged so that the lock part and the release cam part formed in the control lock member face together with the engagement part formed in the operation lever, and a rocker for operating an idler for fast forwarding and rewinding is provided. Automatic tape recorder operation is achieved by forming an operating section for the movable member, and forming a passive section on the swinging member for returning the swinging member to a neutral state when both the operating levers are returned. We have succeeded in obtaining an advantageous mechanism that allows for smooth operation, reduction in size and weight, or reduction in cost, and appropriate stability of operation.

That is, to explain the specific embodiment of the present invention shown in the attached drawings, as shown in FIG. The flywheels 1F and 1R, around which a belt 4 is suspended, are driven by the belt 4.
00, and one of these flywheels 1R is integrally formed with a drive gear 1 as shown in FIG. The circumferential gear part of the intermittent gear 2 located on the inner side is exposed, that is, the gear 2 has an intermittent part 2a that can be disengaged from at least the drive gear 1.
is formed in a part thereof, and a notch 2c parallel to the circumferential gear train is formed continuous with the bottom of the notch of the intermittent portion 2a.
is formed on one side of the notch 2c, so that the gear train at the portion where the notch 2c is formed has a certain degree of elasticity, thereby facilitating the engagement operation with the drive gear 1. Furthermore, the cam part 3 is coaxially and integrally formed with the intermittent gear 2, and the actuating member is set parallel to the plate surface of the intermittent gear 2. 7, a spring 6 is stretched between one end of the actuating member 7 and the deck, and the spring 6 applies a biasing force that causes the actuating member to slide to the left in FIG. 1 and move back. There is. However, a retainer 8 such as a roller or a pin is attached to the lower surface of the operating member 7.
The retainer 8 is joined to the surface of the cam portion 3 by the biasing force of the spring 6 as described above against the actuating member 7, that is, the actuating member 7 is slid following the surface of the cam portion 3 for forward movement. It is designed to do so.

An engaging portion 15a of a rotary link 15 whose intermediate portion is pivotally supported by a deck 100 engages with a locking portion 7a formed on the distal end side of the operating member 7, and other portions of the rotary link 15 engage with the locking portion 7a. The retainer 15b provided at the end comes into contact with the passive end 12e of the control member 12 in the retracted state when the actuating member 7 moves forward, and the spring 12 for returning
It is configured to push forward against the urging force of s. The control member 12 is provided with a locking hole 21 so that the control member 12 is locked in the forward position by an engaging pin 16b located in the middle of the lock member 16 whose base end is pivotally supported on the deck 100. There is.

As shown in the upper part of FIG. 1, the actuating member 7 as described above has guide holes 72, 72 formed on both sides thereof, and the deck 1 is inserted into these guide holes 72, 72.
00 are engaged with each other, and the intermediate portion is pivotally supported by one of the pins 71, and the spring 5s at one end is biased with a clockwise rotational force in Fig. 1. is the lock member 5, and the intermittent gear 2 is provided with a locking protrusion 17, and the operating end 5p of the lock member 5 faces the locking protrusion 17. When the driving gear 1 is in the non-operating state as shown in FIG.
is connected to the stepped portion 3a of the cam 3 to apply a rotational force to rotate the intermittent gear 2 in the counterclockwise direction in the figure, and this rotational force also causes the engagement of the operating end 5p of the locking member 5 to the engagement projection 17. It is designed to lock when tilted.

As described above, when the control member 12 is advanced via the pivot link 15 by the forward movement of the actuating member 7, the locking portion 21 of the control member 12 is locked by the control locking member 16. That is, to further explain this relationship, the control lock member 16 is located at the fulcrum 16a.
The core 27 of the holding plunger 26 is attached to the movable end of the holding plunger 26 and the spring 1 of the control member 12 is attached to the movable end.
When the control member 12 moves forward and the engagement pin 16b reaches the bent part 21a of the locking part 21, the spring 16s Applying the biasing force to the control lock member 16 in the locking direction,
The core 27 is brought into contact with the holding plunger 26 and held by the holding plunger 26 which is in an energized state.
When the holding plunger 26 is de-energized, the spring 16
The control member 12 is unlocked since it cannot be held by a force of s, and the control member 12 is therefore retracted.

The above-mentioned flywheel 1R and the other flywheel 1F installed opposite to it have opposite rotational directions, as is clear from the state in which the belt 4 is suspended from the motor pulley as shown in FIG.
First and second reel bases 25R and 25F are provided for these flywheels 1R and 1F, respectively, and a gear idler is provided between these reel bases 25R and 25F on the free end side of the interlocking member 36. 37 is located, and the idler 37 is moved to the flywheel 1 by the operation of the interlocking member 36.
R or 1F circumferential gear part 38 and reel base 25
R and 25F are simultaneously engaged and disengaged from the circumferential gears, thereby performing fast forwarding or rewinding operations, but the idler 37 is engaged with the flywheel and reel base first with a slight time difference. First, the peripheral speed gear portion 38 of the flywheel is engaged with priority, and then the reel base gear portion is engaged with the reel base gear portion. That is, by doing this, the idler 37 first rotates, and under that rotation condition, it engages with the stopped reel base to perform accurate rotation, and the idler 37, which remains stopped, engages with the reel base that is stopped.
The engagement between the gear and the reel base prevents the formation of a non-rotatable state between the tips of the gears. On the front of the deck 100, there are two operating levers 3 on both sides of the release lever 33 for fast forwarding or rewinding.
1 and 32 (these operation levers can be used for fast forwarding or rewinding depending on the running direction of the tape, and their display is generally just an arrow indicating the running direction), and these fast forwarding Each of the rewinding levers 31 and 32 is provided with a spring 40 and is always biased in the release direction.
a, 32a are provided oppositely, and the operation parts 31a, 3
A swinging member 34 is rotatably provided between 2a with a pivot 34a, and the swinging member 34 has passive parts 34b and 34 for the operating parts 31a and 32a as described above.
b, 34c, and 34c are provided oppositely on the back side and the front side, respectively, and when either of the operating levers 31, 32 is pushed, it acts on either of the passive parts 34b, and the swinging member 34 is moved. The swing member 34 is configured to swing and tilt, and its back movement acts on one of the passive parts 34c to restrict the swing member 34 from moving back to the neutral state shown in the figure. Swinging member 34 and the interlocking member 36
A U-shaped linear elastic member 41 is provided between the protrusion 34d provided on the tip side of the swinging member 34.
The elastic member 41 is attached in a clamping manner to the pivot 36a of the interlocking member 36 and the projection 36b provided on the distal end thereof, so that the swinging member 34 as described above cannot be swung. When moving, the interlocking member 3
6 are tilted and moved symmetrically, and the tilting angle of the interlocking member 36 is determined by the locking claws 42a and 4 provided oppositely on the reel base on both sides thereof.
2b, thereby optimizing the engagement of the idler gear 37 mentioned above. Since these locking claws 42a and 42b are protruded in the form of strips, their bending is adjusted as appropriate to make their limiting state appropriate. The linear elastic material 41 provides an appropriate cushioning effect when the idler gear 37 engages with each gear portion of the flywheel and reel base, that is, prevents damage to the gear tooth tips when engaged as a rigid body, and also The gears are engaged with an action force that suppresses vibrations caused by the rotational operation and overcomes the repulsive force when the rotated gears engage with each other, and when disengaging the engagement, the interlocking member 36 is interlocked with the swinging member 34, and the intermediate return to position.

The aforementioned fast forward/rewind operating levers 31 and 32 each have a pin or trochanter-shaped engagement portion 31b at the tip end,
32b is provided, and these engaging portions 31b, 32
b is the lock portion 39a, 39 of the control lock member 39;
a, and are locked at each push-in to maintain the fast-forward or rewind state. The control lock member 39 is provided with a release cam portion 39b that comes into contact with the engaging portion 33b at the tip of the release lever 33 provided between the operating levers 31 and 32, and the release lever 33 cannot be pushed in. Their lock status is released by the . Furthermore, the above-mentioned lock part 3
A release cam portion 39c is formed on the front side of each of the levers 9a and 39a, so that when one of the operation levers 31 and 32 is operated while the other is locked, the engagement portion of the operated lever is released. (31b or 32b) first acts on the release cam portion 39c to release the locking state of the preceding lock lever, and then locks itself.

The sensing member 46 provided overlappingly with the control lock member 39 is a member that directly or indirectly releases the pressure bonding of the control member 12, and is a member that directly or indirectly releases the pressure bonding of the control member 12, and is a member that directly or indirectly releases the pressure bonding of the control member 12, and the sensing member 46 is a member that directly or indirectly releases the pressure bonding of the control member 12. Abutment portions 46a, 46b, and 46c are provided, and an operating portion 46d for the switch 44 is formed on one side thereof, and a spring 43 is provided between the control lock member 39 and the switch 44.
Reference numeral 4 controls and operates a locking plunger 26, which is a control member that controls sound pressure muting and release of pressure on the head, pinch roller, idler, etc. If the sensing member 46 does not lock the control member 12 using the plunger 26 or the like, the control member 12 is directly locked, and the sensing member 46 is actuated by operations such as fast forward/rewind or stop/eject. The pressure release of the head, pinch roller and idler described above can be performed. In this case, an engaging portion 46e is separately provided in a part of the sensing member 46 as shown in FIGS. 7 and 8 a to 8 c,
Further, a locking portion 12a is formed on the control member 12, and the locking portion 12a is locked by the engaging portion 46e when the control member 12 is in the advanced position.

An actuating portion 7b is provided on the front side of the actuating member 7, and the actuating portion 7b faces the engagement protrusion 39d of the control lock member 39, and is connected to the intermittent gear 2 described above.
When the engagement part 17 and the locking member 5 are unlocked and the actuating member 7 draws the intermittent gear 2 to the drive gear 1 and drives it, the engaging part 39d and the actuating part 7b are joined, and the spring 43 The biasing force exerted by the spring 6 of the actuating member 7 is large so that the control lock member 39 can be operated to release the control lock member 39 against the biasing force. The unlocking operation of the locking member 5 is performed using a plunger (not shown) that is activated by attaching a tape end or pack or changing a program to an operating portion 5a formed near the spring 5s as shown in FIG. Alternatively, a program switching lever that operates against the tensile force of the spring 5s is applied to the part, and an eccentric cam installed coaxially with the reel stand is applied to the sensing lever, and the friction caused by the rotation of the reel stand is actuated. The acting force by the actuating piece is applied through a force in the opposite direction to the acting force direction by the eccentric cam, and when the acting force by the actuating piece stops, the stepped portion formed on the eccentric cam is applied to the engaging part of the sensing lever. A mechanical detection mechanism that causes the sensing lever to slide in the axial direction by being engaged with the operating portion 5a, or a detection means that utilizes a tape tension, etc., may be employed as appropriate.

Note that the above-mentioned locking and releasing operations of the control member 12 by the control lock member 16 are performed by attaching a core to the control member 12 for the suction plunger provided on the deck without using the control lock member 16, and then using the rotation link 15. It is also possible to lock the control member 12 with the suction plunger in a state where it is moved forward by the action, and to release it by turning off the current.

To explain the operation of the device according to the present invention as described above, as shown in FIG.
When the operating end 5p of the intermittent gear 2 is engaged with the protrusion 17 of the intermittent gear 2 to stop its operation, the locking member 5 is moved to the operating section 5a by inserting a cassette, detecting the tape end, or switching a program. On the other hand, when the spring 5s is operated against the action of the spring 5s, the locking between the operating end 5p and the locking protrusion 17 is released. As a result of this unlocking, the force exerted by the spring 6 acts on the stepped portion 3a of the cam portion 3 via the latch 8 of the actuating member 7, so that the intermittent gear 2 is slightly rotated counterclockwise in FIG. The retainer 8 of 7 is dropped into the deepest part of the cam part 3 from the state where it is engaged with the intermediate part as shown. As shown in the figure, in the process of this locking 8 falling into the deepest part of the cam part 3, the area from the middle part of the stepped part 3a to the deepest part of the cam part 3 forms an arcuate part 3a'. , therefore the cam part 3 is the ninth
Even if it is rotated counterclockwise from the state shown in the figure, the pressing force of the retainer 8 (due to the spring 6) that acts in the horizontal direction in this diagram acts almost equally as a pressing rotational force on the step portion 3a (if the flat If the stepped portion 3a is such that the rotational force of the retainer 8 that presses the cam portion 3 is rapidly reduced by the rotation of the cam portion 3)
It can be in the state shown in the figure. In this way, the cam part 3
When the intermittent gear 2 is slightly rotated counterclockwise, the gear train on the outer periphery of the notch 2c of the intermittent gear 2 is engaged with the drive gear 1, as shown in FIG.
Since the drive gear 1 is rotated by a driving mechanism such as a motor, the intermittent gear 2 is rotated, and the cam portion 3 is also rotated together, so that the pin of the cam switching member 10 is rotated. 10a reaches the bent corner of a J-shaped engagement hole 7e formed at the top of the actuating member 7, but in the state shown in FIGS. Since the pin 10a covers the bent part of 7e, the pin 10a does not fall into the bent part even by the action of the spring 10s, that is, the control member 12
When the vehicle is moving backward as shown in FIG. 10, even if the actuating member 7 operates, the cam switching member 10 is not actuated by the actuating member 7. Further, in the process from the state shown in FIG. 9 to the state shown in FIG. Furthermore, the actuating member 7 moves slightly forward in the cam part 3 (in the opposite direction to the sliding direction of the actuating member 7 when the lock 8 is dropped into the deepest part of the cam part 3), and the retainer 15b moves again to the passive part 12e. The control member 12 will not be actuated until it touches , that is, the forward movement of the control member 12 will be slightly delayed from the start of the forward movement of the actuating member 7.

By the way, the control member 12 moves forward via the rotation link 15 due to the forward movement of the actuating member 7, and the pin 16b of the locking member 16 engages with the bent portion 21a of the locking hole 21.
11 and is locked to form the playing state, and the state shown in FIG. 12 is reached. As shown in FIG. 12, when the control member 12 is in the forward movement or play state, the stepped portion 12e is sufficiently disengaged from the engagement hole 7e. When the release operation is given, the intermittent gear 2 is engaged with the drive gear 1 and rotated as described above, but in this case, the retainer 8 is joined to the middle of the stepped portion 3a of the cam portion 3 as shown in FIG. From this state, the actuating member 7 first slides in the direction shown by the arrow in FIG. 13 by the restoring force of the spring 6, and the retainer 8 is dropped from the intermediate position of the stepped portion 3a to the deepest part of the cam surface. The pin 10a, which had stopped in the state shown in FIG.
As shown in the figure, a spring 10s is attached to the bent part of the engagement hole 7e.
In other words, the cam switching member 10 is first locked into engagement with the operating member 7. Thus, when the intermittent gear 2 and the cam portion 3 are rotated while the cam switching member 10 is engaged and locked with the operating member 7 (playing state),
This time, the cam surface of the cam portion 3 causes the actuating member 7 to move to the first position.
Therefore, the cam switching member 10 is operated integrally to act on the chevron 9a of the switching cam 9, and the 13th
As shown in FIG. 14, the switching cam 9 is reversely switched, and then the engagement between the drive gear 1 and the intermittent gear 2 is released, and the retainer 8 is engaged with the middle of the stepped portion 3a, as shown in FIG. state. When the intermittent gear 2 is further rotated in the state shown in FIG. 15, the switching cam 9 is now rotated to the 14th gear as shown in FIGS.
Switch the rotation in the opposite direction to the case shown in the figure, then the first
As shown in FIG. 7, the engagement between the drive gear 1 and the intermittent gear 2 is released and stopped in a state where the retainer 8 is engaged with the middle of the step portion 3a. Hereinafter, the switching cam 9 is alternately switched clockwise and counterclockwise every rotation of the intermittent gear 2, and the switching cam 9 is rotatably mounted on the deck 100 by a pivot 9a. The actuating member 10b of the cam switching member 10 and the deck 100
As shown in FIG. 9 and below, a spring 9s is provided between the cam 9 and the cam 9, and a switch plate is linked to the retainer 9b of the switch cam 9 as is known in the art. That is, although this switching plate is omitted from illustration, it includes pinch rollers (not shown) arranged on both sides of the head and intermediate idlers 24 that are engaged and disengaged between each drive gear 1 and the reel bases 25R and 25F. Each cam portion for switching is formed, and continuous tape feeding according to the auto-reverse method is realized by the reversal switching operation of the switching cam 9 as shown in FIGS. 13 to 17 described above. and obtain desirable tape recorder functions.

The control member 12 directly or indirectly releases and controls tape feeding mechanisms such as heads, idlers, and pinch rollers.

The operation stroke of the actuating member 7 from the state shown in FIG. 16 using the cam portion 3 of the intermittent gear 2 described above, through the state shown in FIG. 17, and finally to the state shown in FIG. 1, FIG. 9, or FIG. 13. In the non-operating state where the intermittent gear 2 and the drive gear 1 are disengaged, divide into two using especially the intermediate stage portion 4d,
One side is a head like the above, a pinch roller,
One of the intermittent gears is used for crimping the idler and operating the auto-reverse mechanism, and the other is used for drawing in the intermittent gear 2, communicating with the channel switching mechanism connecting member, and unlocking the fast forward or rewind operating lever. By rotation, switching from the fast forward or rewind state to the playback operating state can be performed accurately and orderly. Similarly, both channel switching and head crimping can be appropriately performed.

To further explain the operation of the embodiment described above, when the aforementioned operating lever 31 is pushed in as shown in FIG.
1a, the swinging member 34 is rotated counterclockwise in FIG. 1, the interlocking member 36 is rotated clockwise via the linear elastic member 41, and the idler gear 37 is connected to the gear 38 of the flywheel 1R and the reel base. 2
The reel base 25 is engaged with the gear part of 5R.
On the other hand, the operating lever 31 is locked by the locking member 39a of the control locking member 39 and held in the depressed state. Moreover, this control lever 3
1 to push the contact portion 46a of the sensing member 46 and operate the switch 44 using the operating portion 46d. That is, the switch 44 is provided in the energizing circuit for the plunger 26 for maintaining the control member in the operating state for maintaining the regeneration necessary mechanisms such as the head, pinch roller, idler, etc. in the compressed state, and is The operation of the switch 44 turns off the current supply circuit, cuts off the current supply to the plunger 26, and causes the regeneration mechanism as described above to retreat from the forward regeneration state. The above part is the operation lever 32
Even when pushed in, the tilting direction of the swinging member 34 and the interlocking member 36 is reversed, and the pressing direction of the idler gear 37 is the same.
That is, the idler 37 is the gear 3 of the flywheel 1F.
8 and the gear of the reel base 25F to drive the reel base 25F.
is locked.

In the system in which the control member 12 is directly locked by the sensing member 46 as shown in FIG. 7, when the operating lever 31 or 32 is operated in the reproducing state as shown in FIG. The engaging portion 46e is released from the locked state as shown in FIG. 8(a), and the control member 12 is retracted as shown in FIG. It is locked by the locking portions 39a, 39a.

The operating lever 31 is locked as described above.
Alternatively, to release the locked state of 32, push in the release lever 33 as shown in FIG. That is, the release lever 33 is the operating lever 31 or 32 as described above.
When the locking portion 39a of the release lever 33 is pushed in in the locked state, the engaging portion 33 of the release lever 33
b engages with the release cam portion 39b of the control lock member 39 and slides the control lock member 39 to the left in the drawing, so that the lock portion 3 of the operating lever 31 or 32
The lock on 9a or 39a is released. Note that even if one of the operating levers 31 or 32 is locked and the other operating lever (32 or 31) is pushed in, the previously locked operating lever cannot be unlocked. As already mentioned.

However, tape end detection during fast forwarding or rewinding (mechanically detecting the tape tension condition when reaching the tape end and mechanically operating it, or stopping the reel base at the tape end by a detection circuit) (operations such as detecting and activating something like an electromagnetic plunger)
As a result, the locking member 5 rotates about the pin 71 as shown by the arrow a in FIG. 6 against the acting force of the spring 5s, and the locking portion 17 and the operating end 5p are disengaged. The intermittent gear 2 is rotated by the rotation of the flywheel 1R, which engages the intermittent gear 2 and the driving gear 1 as shown in FIG. The operating end 7b of 7 is connected to the engaging protrusion 39d of the control lock member 39.
6, the control lock member 38 is slid to the left, and the locked state of the operating lever 31 or 32 is released as shown in FIG.
Also, with this operation, the sensing member 46 also returns to its original state.
The control member that holds the head, pinch roller, etc. in a regenerated state is set in a state where it can be held, and when the intermittent gear 2 rotates, the control member is advanced to press the head, pinch roller, idler, etc., and return to the regenerated state. do.

The operating stroke of the actuating member 7 by the cam 3 integrated with the intermittent gear 2 described above is divided into two from the non-operating state in which the intermittent gear 2 and the drive gear 1 are disengaged, and one of the two is divided into two by the above-mentioned head or pinch. One is used for crimping the rollers, idlers, etc. and operating the auto-reverse switching mechanism, while the other is used for drawing in the intermittent gear 2, communicating with the channel switching mechanism connecting member, and unlocking the fast forward or rewind operating lever. Switching from the fast forward or rewind state to the playback operating state can be performed accurately and orderly with one rotation of the gear. Similarly, both channel switching and head crimping can be appropriately performed.

In the embodiment described above, the intermittent gear is driven by the drive gear 1 integrally attached to the flywheel, but the intermittent gear 2 is driven as shown in FIG. A pulley 51 may be employed as shown. That is, even if the worm 52 is formed coaxially with the pulley 51 driven by the motor 50 as described above, and the intermittent gear 2 is made to face the worm 52 as shown in FIG. 18, the other configurations are the same as described above. The same operation as described above can be obtained, and if the worm 52 is used in this way, a large reduction ratio can be achieved with a small size. Further, the actuation operation of the control member 12 by the actuating member 7 is performed without using the link 15.
It may be configured as shown in the figure. That is, Figure 1 or Figure 7
The rotating link 15 as shown in the figure is omitted, and the actuating member 7 is provided with a protrusion 7c, so that the end of the control member 12 is directly pushed forward, and the control member 12 is formed with a separation portion 12b, and the actuating member 7 A J-shaped hole 7b is formed in the cam body 9, and the pin 10a of the cam switching member 10 is engaged with the J-shaped hole 7b.
a to rotate the cam body 9.

According to the present invention as described above, a cam part is integrally formed with an intermittent gear in which a notch is formed in a part of the gear train in order to appropriately release the driving state of the drive mechanism, and the cam part The actuating member operates the control member that controls the advancement and retraction of the tape drive mechanism such as the head, pinch roller, and idler, so that the tape feeding state is automatically established and released when loading or ejecting the cassette. It is clear that the tape feeding state can be caused by the rotation of the intermittent gear and the cam part by the drive mechanism under the condition that the control member is always biased in the release direction to form and maintain the tape feeding state. Because it is only necessary to release the holding state when fast forwarding, rewinding, or ejecting, the operating force can be greatly reduced, and since a rotary drive mechanism such as a play motor is used as the driving mechanism, it is very easy to use. It does not require an electromagnetic plunger with a large output capacity, is mechanically simple, and rotates the intermittent gear and cam portion with a relatively light acting force, so it can be used as a simple tape end detection mechanism or tape tension. It can be operated directly by mechanical means such as a mechanism, and even if a plunger is used, there is no need to drive it with a conventional large plunger, and the plunger control circuit can be of small capacity. This makes it possible to reduce the size and cost, and in addition, the control lock member has a release cam part and a lock part facing the engaging part of the operating lever for fast forwarding and rewinding. Because of the arrangement, the locked state of any of the previously added operating levers is first released, and then the operating state of the newly selected operating lever is properly locked in about one line, and then the locking state of the newly selected operating lever is properly locked. The operating lever is provided with an operating part for a first passive part of the swinging member that operates the idler, and the swinging member is provided with a first drive part for returning the swinging member to a neutral state when the operating lever is returned. Since the second passive part is formed, all the operations necessary for fast forwarding and rewinding can be smoothly realized by operating a single lever, and the configuration is simplified, which makes it possible to reduce the cost in both respects. This invention has great industrial effects because it can provide a tape recorder that is light and operates smoothly.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention,
FIG. 1 is a plan view of a tape player equipped with the mechanism of the present invention, FIG. 2 is a partially cutaway side view along the axis of the flywheel and capstan, and FIG. 3 is a partially cutaway side view along the idler gear.
Fig. 4 is a plan view of the fast forward or rewind state, Fig. 5 is a plan view of the release state by the release lever,
Fig. 6 is a plan view showing the state in which the cam is rotated and released by detecting the tip end, etc. Fig. 7 is a plan view showing the regeneration state in which the control member is directly locked by the sensing member, and Fig. 8 The figure is a partial plan view of the operating state, where a shows the playback state, b shows the fast forward/rewind operating state, and c shows the state released by operating the release lever. FIGS. 13 to 17 are planar explanatory views showing the operating states of the control members by the actuating members, and FIGS. Explanatory drawings, FIGS. 13 to 15 show one switching operation, FIGS. 15 to 17 show another switching operation, and FIG. 18 shows a modification of the intermittent gear drive system. FIG. 19 is a plan view showing a modification of the operating relationship between the actuating member and the control member, and FIG. 20 is a side view thereof. However, in these drawings, 1 is a drive gear,
1R, 1F are flywheels, 2 is intermittent gears, 2
a is the notch, 2c is the notch, 3 is the cam, 3a is the step, 4 is the belt, 5 is the lock member, 5p is the operating end, 7 is the operating member, 7b is the operating part, 8 is the 9 is a switching cam, 10 is a cam switching member, 12 is a control member, 15 is a rotating link,
16 is a lock member, 25F and 25R are reel bases, 31 and 32 are fast forward and rewind operation levers,
31a and 32a are their operation parts, 31b and 32
33 is a release lever, 34 is a swinging member, 34c is a passive part thereof, 36 is an interlocking member, 37 is an idler, 39 is a control lock member, 3
9a is its locking part, 39c is its release cam part,
40 is a return spring, 41 is a linear elastic member, and 100 is a deck.

Claims (1)

[Scope of Claims] 1. An idler is provided by a swinging member to first and second reel bases that are respectively disposed opposite to first and second flywheels that are driven in opposite directions by a motor. fast forwarding and rewinding by engaging and disengaging, wherein operating levers for fast forwarding and rewinding are provided on the left and right sides of the swinging member, and each of the operating levers is operated by lever operation. Each of the swinging members is provided with an operating portion that engages with the swinging member and rotates the swinging member, and the swinging member is provided with an operating portion that engages with the operating portion of each of the above-mentioned operating levers when the operating lever is operated for fast forwarding or rewinding. a first passive part in which the swinging member is rotated so as to cause the idler to be in a fast forward or rewind state; A tape recorder characterized in that a pair of second passive parts whose members are rotated are provided symmetrically with respect to each operating lever.