JPH0528580Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention is a switching system for a tape player in which the head base is moved by the force of a motor, and the magnetic head is moved to the play position, cue/review position, and stop position. Regarding equipment,
In particular, the present invention relates to a switching device for a tape player that has a mechanism that allows the tape player to easily and reliably return to the stopped state when restarted, no matter what operating mode it is in when it is stopped.

[Technical background and conventional technology]

In recent tape player switching devices, there is an increasing number of so-called power assist type switching devices in which when an operation switch is lightly pressed, the head base is moved by the force of a motor, and the magnetic head moves forward and backward relative to the tape.

Figures 11 and 12 show a conventional example of the main parts of this type of power-assisted switching device, with Figure 11 shown from the cassette loading side and Figure 12 shown from the back. It is something.

A switching gear 1 is used in this switching device. Tooth-missing portions 1a and 1b are formed at two locations around the switching gear 1. The switching gear 1 is biased clockwise in FIG. 11 by a spring or the like. When the drive gear 2 driven by the motor is facing the tooth-missing portion 1a or 1b, the rotational force of the drive gear 2 is not transmitted to the switching gear 1, and the switching gear 1 is not driven, but switching is performed from this position. When the gear 1 is pushed by the spring and rotates slightly clockwise, the drive gear 2 and the switching gear 1 are then engaged and the switching gear 1 is driven.

A switching cam 3 is integrally provided on the surface of the switching gear 1, and this switching cam 3 is in contact with a pressing piece 4a of the head base 4. A magnetic head 6 is fixedly attached to the head base 4, and the head base 4 is urged by a spring 5 in a direction (direction B) into pressure contact with the switching cam 3. FIG. 11 shows the stop state. When the switching gear 1 rotates clockwise starting from this state, the switching cam 3 presses the head base 4 in the direction A, and the magnetic head is moved to the rotational position where the drive gear 2 faces the missing tooth portion 1b. 6 comes into pressure contact with the tape (not shown) and enters the play state. On the other hand, as shown in FIG. 12, a stopper step 7a is provided on the back side of the switching gear 1.
and 7b are formed, and in the stopped state shown in FIG. 11, the pin 8a at the tip of the lock lever 8 is locked by the force of the spring 9 against the stopper step 7a. At this time, when the solenoid 10 is energized, the pin 8a separates from the stopper step 7a, and the switching gear 1 rotates. When the switching gear 1 rotates until the head base 1 is pushed to the play position by the switching cam 3, the pin 8a is engaged with another stopper step 7b, and the switching gear 1 is stopped.

[Problems with conventional technology]

In the switching device configured as described above, when the solenoid 10 is in a non-energized state, the pin 8a is pressed against the stopper steps 7a and 7b by the biasing force of the spring 9, so that the switching gear 1 is locked. Also, to release the lock of switching gear 1, solenoid 1
This is done by exciting 0.

For example, in the play state, the pin 8a is locked to the stopper step 7b, but this locking force is not due to the suction force of the solenoid 10 but to the elastic force of the spring 9. Therefore, if the power is turned off while in the play state, the solenoid 10 will become unable to be driven, and the switching gear 1 will remain locked in the play state. Generally, when the power is turned on to start the tape player, the head base 4 must be moved back in the direction B and returned to the stopped state. However, in the conventional switching device described above, the switching gear 1 is sometimes locked in the play state, so it is necessary to determine whether it is in the stop state or in the play state at the time of starting. Therefore, in the conventional switching device, a switch is provided to detect the rotational position of the switching gear 1, and when the switch is in a state other than the stop mode when the power is turned on, the solenoid 10 is energized according to the detection signal, and the drive gear 2 is activated. It is necessary to rotate the switching gear 1 to return it to the stopped state. Therefore, the number of parts that make up the tape player increases, which not only hinders miniaturization of the device, but also requires a switch detection circuit and a circuit for determining the operating mode at startup and issuing commands to the solenoid 10 and motor. will have to be established.

[Purpose of invention]

The present invention was developed by focusing on the above-mentioned conventional problems, and there is no need to detect the position of the switching gear when the power is turned on, and it is possible to always return to the stop state by simply driving the motor for a certain period of time. The object of the present invention is to provide a switching device for a tape player.

[Means for solving problems]

The present invention includes a head base on which a magnetic head is mounted, a switching cam that drives the head base to move the magnetic head toward or away from the tape, and a switching gear that rotates together with the switching cam. In a switching device for a tape player, which is provided with a locking member that locks a switching gear in an operating mode, a solenoid that drives the locking member, and an urging member that biases the locking member in a direction opposite to the driving direction by the solenoid. The switching gear includes a first stopper portion that is locked by a locking member when the solenoid is in a de-energized state in a stop mode in which the magnetic head moves away from the tape, and a first stopper portion that is locked by a locking member when the magnetic head is in contact with the tape. In the play mode in which the solenoid is excited and driven, the second stopper portion is locked by the locking member, and in the mode in which the magnetic head is retreated from the play mode position to the stop mode side, A third stopper portion that is locked by the locking member when the solenoid is energized and driven, and guiding the locking member that has come off the second stopper portion to an engagement position with the third stopper portion. The device is characterized in that a timing section is formed.

[Effect]

In the above means, the locking member locks the switching gear when the solenoid is energized, and the locking member locks the switching gear when the solenoid is in the de-energized state in the play mode and in the cue or review mode, for example, in which the magnetic head is retracted from the play mode. Therefore, the switching gear is locked only in the stop state. Therefore, if the motor is driven for a certain period of time with the solenoid OFF at startup,
The switching gear rotates and is always locked in the stop state. Further, since a timing section is provided that guides the locking member that locks the second stopper section for setting the play mode into an engaged state with the third stopper section for setting the cue or review mode, the solenoid When the play mode is canceled by turning off the play mode, and then, for example, the queue or review mode is set, the third stopper portion can be reliably locked by the locking member.

[Example of idea]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 10.

FIG. 1 is a plan view showing the main parts of an auto-reverse tape player as an embodiment of the present invention.

Reference numeral 11 in the figure is a chassis. On this chassis 11 are a pair of capstans 12 and 1.
3 is provided. Capstan 1 on the right side of the diagram
2 is for driving the tape in the normal direction, and the left capstan 13 is for driving the tape in the reverse direction. A flywheel 14 integrated with a capstan 12 and a flywheel 15 integrated with a capstan 13 are provided on the back side of the chassis 11. Both flywheels 14 and 15 are driven by a motor (not shown). By the power of this motor, the capstan 12 and flywheel 14 for normal drive are driven counterclockwise in the figure, and the capstan 13 and flywheel 15 for reverse drive are driven clockwise. Further, a drive gear 16 is provided on the flywheel 14 and rotates integrally with the flywheel 14.

Pinch roller 17 is attached to one capstan 12.
are opposed to each other, and a pinch roller 18 is opposed to the other capstan 13.

Further, above each capstan 12 and 13 in the drawing, a take-up reel stand 19 and a supply reel stand 20 are provided. Both reel stands 19 and 20 are driven by a motor, with reel stand 19 being driven counterclockwise and reel stand 20 being driven clockwise, and the rotations of both reel stands 19 and 20 are not shown. It is adapted to be switched by a switching mechanism.

Further, a head base 21 is provided on the chassis 11, and a magnetic head 23 is mounted on the upper surface of the head base 21. The head base 21 is guided by a guide pin (not shown) fixed on the chassis 11 and is slidably guided in the direction of arrow AB. Further, the head base 21 is urged in the direction of arrow B by a spring 22. The play state is when the head base 21 is moving the most in the direction A, and the magnetic head 23 is in pressure contact with the tape. A state in which the head base 21 is slightly moved in direction B from this position is the cue and review position. Further, when the head base 21 moves the most in the direction B, the magnetic head 23 separates from the tape and enters a stopped state.

A switching gear 25 is provided on the back surface of the chassis 11. FIG. 2A is a plan view showing the front surface of the switching gear 25, FIG. 2B is a side view thereof, and FIG. 2C is a back view thereof. The center of this switching gear 25 is the shaft 26.
It is rotatably supported by. Switching gear 2
Teeth are formed around the drive gear 1 provided at the lower part of the capstan 12.
6, so that rotational force is transmitted from the drive gear 16 to the switching gear 25. but,
This tooth has two missing parts X and Y. Either of these missing parts X, Y is the drive gear 16
When the driving gear 16 faces the switching gear 25, no rotational force is transmitted from the driving gear 16 to the switching gear 25.

Further, a switching cam 27 is integrally formed on the surface of the switching gear 25. As shown in FIG. 4 (side sectional view of FIG. 1), a pressing piece 21a is bent at the center of the head base 21.
1a is pressed against the switching cam 27 by the biasing force of the spring 22. When the switching cam 27 rotates together with the switching gear 25, the head base 21 is pushed and moved in the direction of arrow A according to the shape of the circumferential surface of the switching cam 27. As shown in FIG. 2A, the switching cam 27 is formed in an L-shape, and has a pressing portion α and a pressing portion β formed on its circumferential surface, and a portion adjacent to the pressing portions α and β. A stepped portion γ is formed. head base 2
When the pressing piece 21a of No. 1 is in contact with the pressing part α of the switching cam 27, it is the play position, and when it is in contact with the pressing part β, it is the cue and review position, and it is in contact with the step part γ. This is the stop position.

Further, a biasing cam 28 is integrally formed at the base of the switching cam 27. On the other hand, a biasing lever 29 is provided on the surface of the chassis 11. This biasing lever 29 is biased in the B direction by a wire spring 30. Stop pawls 29a are formed at both ends of this biasing lever 29, and these stop pawls 29a face the gears of each reel stand 19 and 20. Further, as shown in FIG. 4, the tip 29b of the biasing lever 29 is inserted into the lower surface of the chassis 11, and the tip is in sliding contact with the circumferential surface of the biasing cam 28.

Moreover, as shown in FIGS. 2C and 5,
A guide surface 31 is continuously formed around the back surface of the switching gear 25. Since this guide surface 31 is stepped, the central portion of the back surface of the switching gear 25 is formed in a concave shape. A stopper step a is provided on this guide surface 31 and projects inward. This stopper step a is for locking the switching gear 25 in the stopped state. Furthermore, a timing step b is provided at another position on the guide surface 31 to protrude inward. Further, two stopper protrusions c are provided at positions sandwiching the timing step b and near the center of the switching gear 25.
and d are provided. C is for locking the switching gear 25 in the play state, and d is for locking the switching gear 25 in the cue or review state.

Further, a lock lever 32 is provided on the back surface of the chassis 11. This lock lever 32 is rotatably supported by a pin 33 fixed to the chassis 11. A lock pin 34 is fixed at the tip of the lock lever 32. The base of the lock lever 32 is connected to a plunger 35a of a solenoid 35. Also, plunger 3
5a is equipped with a spring 36, and the elastic force of this spring 36 causes the lock lever 3 to be
2 is biased clockwise in FIG. Due to this biasing force, the lock pin 34 is in sliding contact with the guide surface 31.

Switching gear 2 when solenoid 35 is OFF
5 in the G direction, the lock pin 34 slides on the guide surface 31. The stopper step a has a substantially right-angled surface in the G direction, and when the lock pin 34 is engaged with the stopper step a, the switching gear 25 is locked. On the other hand, as shown in an enlarged view in FIG. 10, the surface of the timing step b on the G direction side is an inclined surface. Therefore, when the switching gear 25 rotates in the G direction, the lock pin 34 is not stopped by the timing step b and climbs over the timing step b to reach the stopper protrusion d.
They are starting to run away in the direction of.

Next, the operation of the tape player with the above configuration will be explained.

6A and 6B show the stop state, FIGS. 7A and 7B show the play state, and FIGS. 8A and 8B show the queue and review states. Further, FIGS. 6A, 7A, and 8A are views of the chassis 11 viewed from the front side, and FIGS. 6B, 7B, and 8B are views of the chassis 11 viewed from the back side.

In the stopped state, the switching cam 27 on the switching gear 25 is in contact with the pressing piece 21a of the head base 21 at the portion of its peripheral surface closest to the axis. Therefore, the head base 21 is moved in the direction B by the spring 22, and the magnetic head 23 is separated from the tape (not shown). Also, the two pinch rollers 17 and 18 are both attached to the capstans 12 and 13.
away from

At this time, as shown in FIG.
9 is in contact with the inclined surface 28a of the biasing cam 28 that is integrated with the switching gear 25, so the switching gear 25 is biased in the G direction by the force of the wire spring 30 (see FIG. 1). will be done. However, on the back side of the switching gear 25, the lock pin 34 comes into contact with the guide surface 31 due to the biasing force of the spring 36, and is locked to the stopper step a having an approximately right-angled contact surface (see FIG. 6B). ), the switching gear 25 is stopped. In addition, the switching gear 25
Since the tooth missing portion X around
is not transmitted.

When the recording or playback operation switch is pressed, the solenoid 35 is energized and the plunger 35a is briefly pulled. As a result, the lock lever 32 rotates and the lock pin 34 is removed from the stopper step a. Therefore, the switching gear 25 is unlocked, and the tip 29b of the biasing lever 29 is pushed against the slope 2 of the biasing cam 28.
The switching gear 25 rotates in the G direction due to the rotational force generated by being pressed against the switching gear 8a. When the switching gear 25 rotates slightly from the state shown in FIG. 6A,
The teeth of the switching gear 25 mesh with the drive gear 16. When the recording or playback operation switch is pressed, the capstan 12 and the drive gear 16 are started, and the switching gear 25 is further driven in the G direction by the drive gear 16.

Thereafter, the solenoid 35 is temporarily de-energized and then re-energized when the stopper protrusion c approaches the lock pin 34, or the solenoid 35 is de-energized again.
5 is kept energized, the stopper protrusion c moves into the lock pin 3 after the switching gear 25 is driven by the driving gear 16 in the G direction by a predetermined angle.
4, the switching gear 25 is locked again at this position (the state shown in FIG. 7B). When locked again, the missing tooth portion Y of the switching gear 25 faces the drive gear 16, and the power of the drive gear 16 is no longer transmitted to the switching gear 25. In this way, switching gear 2
5 rotates in the G direction, the switching cam 27 moves the head base 21 in the A direction via the pressing piece 21a, and as shown in FIG. 7A, the switching cam 27
The pressing portion α comes into contact with the pressing piece 21a. At this time, the magnetic head 23 comes into contact with the tape and is at the play position. Further, in this state, one of the pinch rollers 17 and 18 is brought into pressure contact with the capstan 12 or 13. Therefore, the tape is held between the pinch roller and the capstan, and is fed by the rotation of the capstan. Further, the tape is wound up by the reel stand 19 or 20, and recorded or reproduced by the magnetic head 23. In addition, while the play mode is set, the 7th B
The solenoid 35 is kept energized in the state shown in the figure, but in this case, the solenoid 35
5, after being excited once, the voltage is lowered to keep it in a continuous energized state.

Next, switching to queue or review operation will be explained. In the play state shown in FIGS. 7A and 7B, the pressing piece 21a of the head base 21 urges the switching gear 25 in the G direction via the switching cam 27 due to the force of the spring 22. At this time, if the queue operation button or review operation button (not shown) is pressed, the power to the solenoid 35 is cut off for a short time. As a result, the lock lever 32 is rotated by the force of the spring 36, and the lock pin 34 is rotated.
comes off from the stopper protrusion c. The switching gear 25 is G
Since it is biased in the direction, it rotates in the G direction when the lock is released. Immediately after that, when the solenoid 35 is energized again to be energized, the lock pin 34 is now locked to the stopper protrusion d via the path shown by the dotted line in FIG. Then, the switching gear 25 is locked again and the mode is set to queue mode or review mode (states shown in FIGS. 8A and 8B). While this queue or review is in progress,
Similarly to during the play operation, the solenoid 35 continues to be energized to maintain the states shown in FIGS. 8A and 8B.
Note that during the transition from the state shown in FIG. 7A to the state shown in FIG. 8A, the drive gear 16 remains opposed to the missing tooth portion Y of the switching gear 25. While the lock pin 34 moves from the stopper protrusion c to the stopper projection d, the switching gear 25 rotates by a small angle, and the pressing portion β of the switching cam 27 comes into contact with the pressing piece 21a. At this time, the head base 21 is moved back slightly in the direction B compared to the play state shown in FIG. 7A, and the magnetic head 23 comes into light contact with the tape. At this time, the pinch roller 17 or 18
is separated from the capstans 12 and 13, and the feeding force of the capstan against the tape is lost. In this state, when the reel stand 19 is driven and the tape is fast-forwarded, a queue operation is performed, and when the reel stand 20 is driven and the tape is rewound, a review operation is performed. This queue or review operation is used to locate the beginning of a song.

When stopping the operation from the queue or review state shown in FIGS. 8A and 8B, the stop button is pressed to cut off the power to the solenoid 35. This causes the lock pin 34 to come off the stopper protrusion d.
It comes into contact with the guide surface 31 by the force of the spring 36. As shown in FIG. 8A, the head base 21
Since the switching gear 25 is urged in the G direction via the switching cam 27 by the force of the spring 22,
When the lock is released, the switching gear 25 rotates in the G direction. When the switching gear 25 rotates slightly, the pressing part β of the switching cam 27 comes off the pressing piece 21a, and the ninth
As shown in Figure A, the pressing piece 21a falls onto the stepped portion γ, and the head base 21 retreats significantly in the B direction. At this moment, the magnetic head 23 separates from the tape, and the pinch roller 17 or 18 separates from the capstan 12 or 13 and becomes stopped. During this time, the rotation angle of the switching gear 25 is small, and the drive gear 16 remains facing the defective portion Y at the stage shown in FIG. 9A. At this time, as shown in FIG. 9B, the tip 29b of the biasing lever 29 is in pressure contact with the slope 28c of the biasing cam 28, so the switching gear 25 is further biased in the G direction according to the angle of the slope 28c. Forced. Therefore, the switching gear 25 continues to rotate from the state shown in FIG. 9A, and the switching gear 25
The surrounding teeth mesh with the drive gear 16.
Thereafter, the switching gear 25 is driven by the rotational force of the drive gear 16, and when the state shown in FIGS. 6A and 6B is reached, the lock pin 34 is locked to the stopper step a, and the switching gear 25 is stopped. .

In addition, when directly stopping the play state shown in FIGS. 7A and 7B without performing the cue or review operation, cut off the current to the solenoid 35 that was continuously energized during play and leave it in a de-energized state. I'll keep it. As a result, the lock pin 34 comes off the stopper protrusion c, and then the force of the spring 36 causes the lock pin 34 to come into contact with the guide surface 31.
At this time, since the switching cam 27 is pushed in the B direction by the head base 21 as shown in FIG. 7A, the switching gear 25 automatically rotates in the G direction. The lock pin 34 has a timing step b.
However, since the contact surface of this timing step b is a slope, the lock pin 34 will overcome this timing step b. Lock pin 34
After passing over the timing step b, the guide surface 31 is hit again. At this time, the drive gear 16 meshes with the teeth of the switching gear 25, so the switching gear 25 is driven directly in the G direction and returned to the stop state shown in FIGS. 6A and 6B.

Also, if the power is turned off during the play state shown in Figures 7A and 7B, the solenoid 35
Since it is turned OFF, the lock pin 34 comes off from the stopper protrusion c. As described above, since the switching cam 27 is pushed in the G direction by the head base 21, when the lock pin 34 is removed, the switching gear 25 automatically rotates in the G direction. Lock pin 3
4 hits the guide surface 31 once when the power is turned off, and due to the rotation of the switching gear 25, the lock pin 34 climbs over the timing protrusion b and further reaches a position past the stopper protrusion d. Then, the switching gear 25 and the drive gear 16 are stopped in a state where they are in mesh with each other. At this time, the switching cam 27 is separated from the pressing piece 21a of the head base 21,
The pressing piece 21a falls into the stepped portion γ of the switching cam 27, and the head base 21 moves in the direction B, instantly coming to a stop state. Then, when starting the tape player again, if the motor is driven for a short time to rotate the drive gear 16, the switching gear 25
is driven in the G direction, and it always stops after reaching the stop state shown in FIGS. 6A and 6B.

Similarly, if the power is cut off while the mode is switched to the queue or review operation mode shown in Figures 8A and 8B, the solenoid 35 will turn off.
As a result, the lock pin 34 comes off the stopper projection d and hits the guide surface 31. When the lock pin 34 is unlocked, the switching gear 25 is rotated by the pressing force of the head base 21, and the switching cam 27 is disengaged from the pressing piece 21a of the head base 21. Therefore, the head base 21 immediately returns to the direction B, and the magnetic head 23 separates from the tape. Then, similarly to when the power is cut off in the play state, the drive gear 16 meshes with the teeth of the switching gear 25 and stops. Therefore, when the power is turned on again, if the drive gear 16 is driven for a short time, the switching gear 25 rotates and stops in the stop state shown in FIGS. 6A and 6B.

As described above, in this embodiment, when the power to the entire player is turned off, whether in the play mode, queue mode, or review mode, the head base 21 immediately retreats and the magnetic head 23 and pinch roller 17 or 18 leaves the tape. After turning off the power, the cassette can be removed freely. Furthermore, when starting the player again, if the motor is driven for a short period of time, the switching gear 25 will rotate and the stop state shown in FIGS. 6A and 6B can be returned without fail.

In the illustrated embodiment, the shape of the switching cam 27 is determined so that the play state is followed by the queue and review states, and then the stop state, but as another example, the switching cam 27 may be The shape may be such that the pressing portion α, which is the play position, immediately transitions to the stepped portion γ, which is the stop position.

[Effect of idea]

As described above, according to the present invention, in the tape player switching device in which the position of the magnetic head is determined by the rotation of the switching gear and the switching cam, the switching gear is locked by the locking member when the solenoid is OFF. This is only the stop mode of the player, and in the play mode and, for example, the queue or review mode, the solenoid is sucked and the switching gear is locked by the locking member. Therefore, if the power is cut off while the play mode or, for example, queue/review mode is set, the solenoid is turned off and the lock is automatically released. Therefore, for example, when you turn on the power again,
If the motor is driven for a short time to rotate the switching gear, it will always return to the stop state and the locking member will be locked. Therefore, for example, if the motor is driven for a short time when the player is started, the player can always return to the stopped state regardless of the operating mode when the player is stopped.

Further, after setting the play mode, for example, when setting the cue or review mode, the solenoid is turned off once and then turned on again. At this time, the locking member is reliably guided from the second stopper part to the third stopper part by the timing part, so that, for example, the queue or review mode can be set reliably.

[Brief explanation of drawings]

Figures 1 to 10 show embodiments of the present invention, with Figure 1 being a plan view showing the main components of the tape player, Figure 2A being a plan view of the switching gear seen from the surface, and Figure 2B being a plan view showing the main components of the tape player. 2C is a side view thereof, FIG. 3 is a plan view showing the biasing member of the switching gear, FIG. 4 is a side sectional view of FIG. 1, and FIG. 5 is a diagram showing the locking member of the switching gear. Figure 6A, Figure 6B
The figure is an operation explanatory diagram showing the stop state, Fig. 7A,
Figure 7B is an operation explanatory diagram showing the play state, Figure 8A
Figures 8B and 8B are operation explanatory diagrams showing the queue and review operation states, Figures 9A and 9B are operation explanatory diagrams showing the state immediately after transitioning from the queue and review operation states to the stop state, and Figure 10 is an illustration of the timing step. An enlarged view showing the shape, FIG. 11 is a plan view of a conventional tape player switching device, and FIG. 12 is a back view thereof. 11... Chassis, 12, 13... Capstan, 16... Drive gear, 17, 18... Pinch roller, 19, 20... Reel stand, 21... Head base, 22... Spring urging the head base, 23 ...Magnetic head, 25...Switching gear,
27...Switching cam, 29...Biasing member for the switching gear, 31...Guide surface, 32, 34...Lock member, 35...Solenoid, a...Stopper step for locking the switching gear in the stopped state, b ……
Timing step, c...Stopper protrusion that locks the switching gear in the play state, d...Stopper protrusion that locks the switching gear in the queue and review states.

Claims (1)

[Scope of utility model registration request] A head base on which a magnetic head is mounted, a switching cam that drives the head base to move the magnetic head toward or away from the tape, and a switching gear that rotates together with the switching cam in each operating mode. In the switching device for a tape player, the switching gear is provided with a locking member that locks the switching gear, a solenoid that drives the locking member, and an urging member that urges the locking member in a direction opposite to the direction in which the switching gear is driven. In the stop mode, when the magnetic head moves away from the tape, the first stopper part is locked by the locking member when the solenoid is in a de-energized state, and the first stopper part is locked by the locking member when the magnetic head is in contact with the tape. The second stopper portion is locked by the locking member when the solenoid is energized and driven in the play mode, and the solenoid is energized in the mode in which the magnetic head retreats from the play mode position to the stop mode side. a third stopper portion that is locked by the locking member when the third stopper portion is driven; a timing portion that guides the locking member that has come off the second stopper portion to an engagement position with the third stopper portion; A switching device for a tape player, characterized in that: