JPH0262903B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a tape player installed in an answering machine, etc., in which a single motor drives a capstan, a pair of reel stands, and a head base. The present invention relates to a tape player capable of performing the following operations.

[Conventional technology]

The mechanisms that should be installed in the tape player's cassette drive unit include capstan drive,
It is necessary to drive a pair of reel stands for driving the tape reel, and also to drive a head base for moving the magnetic head toward and away from the tape and the pinch roller toward and away from the capstan. Up until now, the minimum power sources for the basic operations of the above-mentioned tape player have been one motor that serves both to drive the capstan and a pair of reel stands, and one motor to drive the head base. solenoids are used. A conventional example of this type of tape player is disclosed in, for example, Japanese Utility Model Application No. 174036/1983.

[Problem to be solved by the invention]

However, conventional tape players equipped with one motor and one solenoid are still insufficient to simplify the mechanism and reduce costs, and simple tape players used in answering machines, etc. The cost of manufacturing has become too high.

The present invention provides a tape player that can not only rotate a capstan and a pair of reel stands, but also drive a head base using only one motor, and has a simplified mechanism and can be manufactured at low cost. is intended to provide. Another object of the present invention is to make it possible to set a review mode or a reverse play mode in a tape player with a simplified mechanism that can be driven by only one motor.

[Means to solve the problem]

In order to achieve the above object, the tape player of the present invention includes a capstan and a drive gear that are rotationally driven by a motor, and a capstan that rotates around the drive gear in accordance with the rotational direction of the drive gear while constantly meshing with the drive gear. a pair of reel gears disposed at positions where the planetary gears mesh with the planetary gears that are rotated when the drive gear rotates in one direction, and at positions where the planetary gears that are rotated when the drive gear rotates in the opposite direction mesh with each other; The reel stand rotated by the reel gear and the planet gear are arranged so as to mesh with the planet gear in the middle of a circular trajectory in which the planet gear moves from a position where it meshes with one reel gear to a position where it meshes with the other reel gear. a mode switching gear having partial teeth that can be rotated by the reel; a head base that is provided with a magnetic head and that is movable in directions approaching and away from the reel base; and a pinch roller that is moved in the direction of separation;
While the mode switching gear is arranged coaxially with the mode switching gear and is rotated in one direction by the planetary gear, the head base is moved to bring the magnetic head into contact with the magnetic tape and the pinch roller is pressed against the capstan to select the play mode. A first switching cam section to be set, and a mode switching gear formed with a rotation radius smaller than that of the first switching cam section, and moving the head base while the mode switching gear is rotated in the opposite direction of switching to the play mode by a planetary gear. and a second switching cam part that sets the review mode by bringing the magnetic head into light contact with the magnetic tape while the pinch roller is separated from the capstan.

Furthermore, in the tape player of the present invention, in the above configuration, instead of the second switching cam part having a smaller rotation radius than the first switching cam part, a second switching cam having the same rotation radius as the first switching cam part is used. A department has been established,
While the mode switching gear is rotated in the opposite direction to the switching to the play mode, this second switching cam moves the head base to bring the magnetic head into contact with the magnetic tape and press the pitch roller against the capstan to enter the reverse play mode. This is to set.

[Effect]

This tape player is capable of switching between all modes simply by controlling the forward and reverse rotation of the motor. That is, when the capstan and the drive gear are rotated by one motor, the planetary gears revolve around the drive gear. By meshing the rotating planetary gear with the pair of reel gears, one of the reel stands is rotationally driven. Further, when the planetary gear is made to revolve by the rotation of the motor in one direction, the planetary gear meshes with the mode switching gear in the middle of its orbit, and the mode switching gear is rotationally driven. The first switching cam moves and drives the head base in accordance with the rotation of the mode switching gear, and the magnetic head on the head base moves to a position where it contacts the tape, and the pinch roller comes into contact with the capstan. Then the play mode is set. When the mode switching gear completes driving the head base, the planetary gear passes through the toothless portion of the mode switching gear and continues to rotate, meshing with the other reel gear, driving the reel base, and winding the tape. Further, when the motor is reversed from this position and the planetary gear is rotated in the opposite direction, the planetary gear engages with the mode switching gear again in the middle of its orbit, and the mode switching gear is rotationally driven in the opposite direction. During the first half of the rotation of the mode switching gear, the first switching cam section is disengaged from the head base, the head base is returned, and the magnetic head and pinch roller are separated from the tape and capstan. Furthermore, in the latter half of the rotation of the mode switching gear, the second switching cam portion moves the head base. After this operation is completed, the planetary gear moves away from the mode switching gear and meshes with the reel gear on the side opposite to the play mode, and the reel stand is driven together with this reel gear. At this time, if the rotation radius of the second switching cam part is smaller than that of the first switching cam part, the head base advances to a position where the pinch roller is away from the capstan but the magnetic head lightly contacts the magnetic tape. becomes. At this time, the tape is rewound at high speed by the reel stand to perform a review operation. Furthermore, if the rotation radius of the second switching cam section is the same as the rotation radius of the first switching cam section, when the head base is moved by the second switching cam section, the magnetic head will move onto the magnetic tape. The pinch roller comes into contact with the capstan and comes into pressure contact with the capstan. At this time, by winding the tape in the opposite direction to the play mode using the reel stand, the mode can be switched to the reverse play mode.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view showing a first embodiment of a tape player according to the present invention, and FIGS. 2 to 6 are plan views showing switching operations to each mode in the tape player of the first embodiment. It is a diagram.

The tape player shown in this embodiment is loaded with a so-called micro-sized cassette half.

Structure of Tape Player In FIG. 1, reference numeral 1 indicates a chassis made of sheet metal. The chassis 1 has a side cross section bent into a crank shape, and has a two-stage structure including a lower installation surface 1a and an upper installation surface 1b.

A take-up side reel stand 2 and a supply side reel stand 3 are rotatably supported on the lower installation surface 1a. A reel gear 4 is provided at the base of the reel stand 2 on the winding side, and a reel gear 5 is provided at the base of the reel stand 3 on the supply side. Reel gear 4 and reel stand 2
A slip mechanism is provided between the reel gear 5 and the reel stand 3, and when the tape tension acts on the reel stand 2 or 3, the reel stands 2, 3 and the reel gear 4, 5 slips, and the difference between the tape winding speed and the rotational speed of the reel gear is absorbed.

A housing 6 is provided on the upper installation surface 1b of the chassis 1.
A bearing held by a is provided, and the capstan 6 is rotatably supported by this bearing. A flywheel 7 integrated with the capstan 6 is provided below the upper installation surface 1b. One motor M is installed on the side of chassis 1.
A belt 8 is placed between the drive pulley of the motor M and the flywheel 7, so that the motor M rotates the capstan 6 together with the flywheel 7. A capstan 6 is mounted on the top surface of the flywheel 7.
A drive gear 9 is provided which rotates therewith. Further, an idle arm 11 is supported by the housing 6a provided on the upper installation surface 1b of the chassis 1, and a planetary gear 12 is provided at the tip of the idle arm 11, which is always engaged with a drive gear. A light rotational load is applied by a spring or the like between the shaft 11a provided on the idler arm 11 and the planetary gear 12 which rotates while being supported by the shaft 11a. When 9 rotates in either direction,
The idle arm 11 follows the direction of rotation, and the planetary gear 12 revolves around the drive gear 9 accordingly. And drive gear 9
When the drive gear 9 rotates clockwise, the planetary gear 12 orbiting around it reaches a position where it meshes with the reel gear 4 on the take-up side (see Figure 3), and when the drive gear 9 rotates counterclockwise, the planetary gear 12 rotates. It reaches a position where it meshes with the reel gear 5 on the supply side (see FIG. 5).

A mode switching gear 15 is provided below the upper installation surface 1b of the chassis 1. This mode switching gear 15 is arranged at a position where the planetary gear 12 meshes with the planetary gear 12 in the middle of a circular trajectory from a position where the planetary gear 12 meshes with one reel gear 4 to a position where the planetary gear 12 meshes with the other reel gear 5. The mode switching gear 15 is provided with a toothless portion 15a, and has a structure in which teeth 15b are partially provided in other portions. If the tooth 15b is opposed to the planetary gear 12 that revolves around the drive gear 9, the rotational force of the planetary gear 12 is
5b to the mode switching gear 15, the missing tooth 1 is transmitted to the surrounding planetary gear 12.
5a are opposed to each other, the planetary gear 12 passes through the missing tooth portion 15a, and the planetary gear 12 moves along the orbit without driving the mode switching gear 15.

A first switching cam 16 and a second switching cam 17 are provided on the upper surface of the mode switching gear 15. As shown in FIG. 2, the radius of the second switching cam 17 is smaller than the radius of the first switching cam 16 by a slight dimension t. Further, a stopper 18 is provided to protrude from the lower end of the edge of the toothless portion 15a of the mode switching gear 15 toward the back surface. The positional relationship between this stopper 18 and each switching cam 16 and 17 is as shown in FIG.

A head base 20 is provided on the upper surface of the upper installation surface 1b of the chassis 1. The head base 20 is guided by positioning pins 19a, 19b provided on the upper installation surface 1b of the chassis 1, and is slidable in the direction A-B. A spring 21 is interposed between the rear end of the head base 20 and the chassis 1, and the spring 21 biases the head base 20 in the direction B. Further, a bent piece 20a is formed at the rear end of the head base 20.
0a extends to a position facing the first switching cam 16 and the second switching cam 17. On the head base 20 there is a magnetic head H and a pinch roller 22 facing the capstan 6.
is supported.

Next, the operation of the tape player with the above structure is
This will be explained sequentially with reference to the figures below.

A so-called micro-sized cassette half (not shown) is loaded while being positioned by positioning pins 19a and 19b. The tape reels in the cassette half are placed on each reel stand 2 and 3.

Stop Mode Figure 2 shows the stop mode. At this time, the first switching cam 16 on the mode switching gear 15
The second switching cam 17 is removed from the bent piece 20a of the head base 20, and the head base 20 is pulled in the direction B by the force of the spring 21. When the head base 20 is in this position, the magnetic head H is away from the magnetic tape in the cassette half and the pinch roller 22 is away from the capstan 6.

Switching from stop mode to play mode When switching from stop mode to recording or playback mode (play mode) in Figure 2, the second
In the state shown in the figure, the motor is driven clockwise (indicated by the dashed arrow in FIG. 2). When the drive gear 9 is driven clockwise by the motor M, the planetary gear 12 follows this and receives the force of rotating clockwise, causing the teeth 15b of the mode switching gear 15 to rotate.
It definitely meshes with the. Then, the power of the motor M is transmitted to the mode switching gear 1 via the drive gear 9 and the planetary gear 12.
5, and the mode switching gear 15 is driven clockwise. The planetary gear 15 will remain in this position while the mode switching gear 15 is driven. When the mode switching gear 15 is rotated to the position shown in FIG. 3, the missing tooth portion 15a of the mode switching gear 15 moves to the position of the planetary gear 12.
The planetary gear 12 can now move away from the edge Ea of the tooth 15b of the mode switching gear 15. The planetary gear 22 that is away from the edge Ea continues to revolve clockwise around the drive gear 9, and reaches a position where the planetary gear 12 meshes with the reel gear 4 on the winding side, as shown in FIG. 3 (play mode). During the period from FIG. 2 to FIG. The head base 20 comes into contact with the bending piece 20a and is pushed out in the direction A against the force of the sling 21. During this switching operation, the planetary gear 12 separates from the edge Ea of the tooth 15b, but at this time, the stopper 18 provided on the mode switching gear 15 hits the right edge of the bent piece 20a of the head base 2. Therefore, in the play mode shown in FIG. 3, the mode switching gear 15 can no longer rotate clockwise, and the edge Ea of the tooth 15b no longer moves clockwise. Therefore, in a later mode switching operation, when the planetary gear 12 rotates counterclockwise, the planetary gear 12 can reliably mesh with the edge Ea of the tooth 15b.
Further, since the stopper 18 is hooked to the edge of the bent piece 20a, the head base 20 can be positioned.

In the play mode shown in Figure 2, the head base 20
Since the head is moving forward in the A direction, the head base 20
A magnetic head H located above contacts the tape T in the cassette half. The pinch roller 22 also presses the tape T against the capstan 6. Since the motor M continues to rotate clockwise, the capstan 6 also rotates clockwise, and the tape T sandwiched between the pinch roller 22 and the capstan 6
The robot is made to travel rightward in the figure at a constant speed depending on the rotational speed of the robot. Further, the power of the motor M is transmitted to the reel gear 4 via the drive gear 9 and the planetary gear 12, and the reel stand 2 on the winding side is driven clockwise. Then, the tape player Ra on the winding side in the cassette half is driven clockwise to wind the tape. Incidentally, the difference between the rotational speed of the reel stand 2 and the tape running speed fed by the capstan 6 is absorbed by a slip mechanism provided between the reel gear 4 and the reel stand 2.

In this way, the magnetic head H
A recording or playback operation is performed. As the magnetic head H, for example, one in which a recording/reproducing head and an erasing head are integrated is used. Both heads may be provided within the same case, or the two heads may be joined together.

Canceling Play Mode To cancel the play mode shown in FIG. 3, the rotation direction of the motor M is switched counterclockwise. When the drive gear 9 is driven counterclockwise by the motor M, the planetary gear 12 starts rotating along the rotation direction of the drive gear 9, and the reel gear 4
The power to the take-up side reel stand 2 is cut off. Furthermore, the planetary gear 12 rotates counterclockwise until it meshes with the edge Ea of the tooth 15b of the mode switching gear 15. When the planetary gear 12 meshes with the teeth 15b of the mode switching gear 15, the motor M
The power is transmitted from the drive gear 9 to the mode switching gear 15 via the planetary gear 12, and the mode switching gear 1
5 is driven counterclockwise. The position of the planetary gear 12 at this time is shown by a broken line in FIG. Further, the rotation direction of each gear at this time is as shown by the broken line arrow in FIG. When the mode switching gear 15 rotates to the angle shown in FIG. 4, the pressing force on the bent piece 20a of the first switching gear 16 is released, and the head base 20 is returned in the direction B by the force of the spring 21, and the magnetic The head H retreats to a position where it does not touch the tape T, and the pinch roller 2
2 leaves the capstan 6. A device for detecting the rotation angle of the mode switching gear 15 is provided, and if the motor M is stopped when the state shown in FIG. 4 is reached, a stop mode is established.

Switching to FF mode When shifting to tape fast forward mode (FF mode), the motor M is reversed clockwise from the state shown in FIG. 4 (the direction of rotation at this time is indicated by the solid arrow in FIG. 4). The clockwise rotation of the drive gear 9 causes the planetary gear 12 to rotate into the drive gear 9.
clockwise around the mode switching gear 15.
The reel gear 4 separates from the reel gear 4 and becomes engaged with the reel gear 4.
At this time, the head base 20 remains retracted in the direction B as shown in FIG.
Also, the pinch roller 22 has retreated to a position away from the tape T. In this state, the reel gear 4 is driven clockwise by the planetary gear 12, and the tape is wound by the reel stand 2. At this time, the motor M is driven at high speed, and the tape T is made to run at high speed.

Switching to review mode Review mode refers to a state in which the tape is rewound at high speed and the magnetic head H is in light contact with the tape T. This review mode makes it possible to control the cue of the recorded content.

This switching to the review mode is a transition from the FF mode shown by the solid line in FIG. 4 or the stop mode in which the planetary gear 12 is in the position shown by the broken line.
When the motor M is driven counterclockwise at the position shown in FIG. 4, the drive gear 6 is driven counterclockwise. Therefore, the planetary gear 12 receives a counterclockwise rotating force, and this force causes the planetary gear 12 to mesh with the teeth 15b of the mode switching gear 15. When the motor 1 continues to rotate counterclockwise, the planetary gear 12 continues to rotate at the position shown by the chain line in FIG. 4, and the mode switching gear 15 is driven counterclockwise. When the mode switching gear 15 rotates to the angle shown in FIG.
The planetary gear 12 continues to rotate counterclockwise around the drive gear 9 and meshes with the reel gear 5 on the left side in the figure. As shown in FIG. 5, when the planetary gear 12 separates from the teeth 15b of the mode switching gear 15, the mode switching gear 15
A stopper 18 provided on the head base 20 is hooked to the left edge of the bent piece 20a of the head base 20. Therefore, the mode switching gear 15 can no longer rotate counterclockwise, and the edge Eb of the tooth 15b is restricted from moving further counterclockwise. Therefore, when the planetary gear 12 rotates clockwise in the subsequent switching operation, the planetary gear 12
It becomes possible to reliably engage the edge Eb of 5b. The head base 20 is also positioned by the stopper 18. During the transition to the state shown in FIG. 5, the second switching cam 17 provided on the mode switching gear 15 presses the bent piece 20a of the head base 20, and the head base 20
be moved in a direction. However, the second switching cam 1
The rotation radius of the head base 20 in FIG. The amount of movement in this direction is slightly shorter than the amount of movement of the head base 20 in the play mode shown in FIG. Therefore, when the head base 20 moves in the direction A, the pinch roller 22 separates from the capstan 6 and the rotational force of the capstan 6 is not transmitted to the tape T. Further, the magnetic head H is in light contact with the tape T (in the play mode shown in FIG. 3, the magnetic head H is in contact with the tape T to the extent that it is bent). When the motor M is driven counterclockwise in the state shown in FIG. 5, the reel gear 5 is driven counterclockwise via the planetary gear 12, and the tape reel Rb is driven by the supply reel stand 3. Tape T
is rewound. At this time, the rotational speed of the motor M is switched to high speed. While the tape T is being rewound at high speed in this manner, the recording signal on the tape T is read by the magnetic head H, thereby making it possible to start the recording.

Switching to REW mode When switching to REW mode, motor M is rotated clockwise from the review mode shown in FIG. The drive gear 9 rotates clockwise,
The planetary gear 12 rotates clockwise and the planetary gear 12
meshes with the teeth 15b of the mode switching gear 15. Mode switching gear 1 is activated by the rotation of motor M.
5 rotates clockwise. Then, the second switching cam 17 comes off from the bent piece 20a of the head base, and
The head base 20 is returned in the direction B by the force of the spring 21, and the magnetic head H is separated from the tape T (see FIG. 6). Then, when the motor M is driven counterclockwise again and the drive gear 9 is rotated counterclockwise, the planetary gear 1 located at the position indicated by the broken line in FIG. 6 rotates counterclockwise and meshes with the reel gear 5. reach the position. The rotational force of the motor M is transmitted from the drive gear 9 to the reel gear 5 via the planetary gear 12.
The reel gear 5 and the reel stand 3 on the supply side are driven counterclockwise. Then, the supply tape reel Rb in the cassette half rotates counterclockwise to rewind the tape. At this time, the rotational speed of the motor M is high, and the tape T is rewound at high speed.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 7 shows the case where the tape player of the second embodiment is in reverse play mode.

This second embodiment is different from the first embodiment described above in the shape of the second switching cam. In this second embodiment, the second switching cam 27 and the first switching cam 16 have a substantially symmetrical shape, and the second switching cam 27 has a substantially symmetrical shape.
7 has the same rotation radius as the first switching cam 16. Further, in this second embodiment, two magnetic heads Ha and Hb are mounted on the head base 20. These two magnetic heads Ha and Hb are arranged at symmetrical positions with respect to the capstan 6. One magnetic head Ha is used for normal play, and the other magnetic head Hb is used for reverse play. Each head Ha and Hb is a combination of a recording/playback head and an erase head.
The recording/reproducing head and the erasing head may be integrated or may be two pieces joined together. Further, the pinch roller 22a mounted on the head base 20 is disposed opposite to the capstan 6 so that its axis is located on the same line.

In this second embodiment, the stop mode, play mode, FF mode, REW mode, etc. are set by the same operations as in the first embodiment. That is, during the same switching operation as shown in FIG. 3 in the first embodiment, the first switching cam 16 presses the head base 20 in the direction A, the heads Ha and Hb come into contact with the tape, and the take-up reel stand 2 , the tape reel Ra is driven and the tape runs to the right in the figure. At this time, the recording or reproducing operation is performed by the magnetic head Ha for normal play.

Next, the reverse play mode setting shown in FIG. 7 is switched by the same operation as the review mode shown in FIG. 5 in the first embodiment. That is, when the mode switching gear 15 is driven counterclockwise by the planetary gear 12, the head base 20 is pushed out in the A direction by the second switching gear 27. 1st
In the embodiment, since the rotation radius of the second switching cam 17 is small, the review mode is set as shown in FIG. 5, but in the second embodiment, the second switching cam 27 is set in the first switching Since the rotation radius is the same as that of the cam 16, the head base 2 moves forward greatly in the direction A, and both magnetic heads Ha and Hb come into contact with the tape T, and the pitch roller 22a is pressed against the capstan 6. At this time, the reel stand 3 on the supply side is driven counterclockwise at low speed by the motor M,
Further, the tape T is sent out to the left in the figure by the capstan 6 which rotates counterclockwise. Recording or reproducing operation is then performed by the reverse magnetic head Hb.

In the embodiment shown in FIG. 7 as well, the stopper 18 provided on the mode switching gear 15 is hooked to the left end of the bent piece 20a of the head base 20 during the play mode and the reverse play mode.
Rotation of the mode switching gear 15 is now prevented.

Furthermore, switching to other modes is the same as in the first embodiment.

〔Effect of the invention〕

As described above, according to the present invention, the reel stand and the mode switching gear are driven by the planetary gear that revolves around the drive gear, so a single motor drives the capstan and the drive gear. By rotating it, it becomes possible to drive not only the pair of reel stands but also the head base equipped with the magnetic head and pinch roller. That is, only one motor is required as a power source, and a solenoid or the like is not required, making it possible to provide a simple and compact tape player at low cost.

Further, in the invention as set forth in claim 1, since the second switching cam having a smaller radius than the first switching cam is provided, it is also possible to set the review mode.

In the invention according to claim 2, since the second switching cam having the same radius as the first switching cam is provided,
It is also possible to set reverse play mode.

In the third aspect of the invention, the mode switching gear is positioned so that when the planetary gear rotates from the play mode etc., the planetary gear meshes with the mode gear reliably.

[Brief explanation of drawings]

The drawings show embodiments of the present invention.
FIG. 2 is a perspective view showing the overall structure of the tape player according to the first embodiment, FIGS. stop mode,
Figure 3 shows the play mode, Figure 4 shows the FF mode, Figure 5 shows the review mode, and Figure 6 shows the REW mode. FIG. 7 shows the drive mechanism of the tape player according to the second embodiment, and is a plan view showing the reverse play mode. 1... Seat, 2, 3... Reel stand, 4, 5
... Reel gear, 6 ... Capstan, 7 ... Flywheel, 8 ... Belt, 9 ... Drive gear,
12... Planetary gear, 15... Mode switching gear, 1
5a... Tooth missing portion, 15b... Teeth, 16... First switching cam, 17, 27... Second switching cam,
18...stopper, 20...head base, 20
a...Bending piece, 21...Spring, 22...
Pinch roller, H...magnetic head, M...motor.

Claims (1)

[Scope of Claims] 1. A capstan and a drive gear that are rotationally driven by a motor, a planetary gear that revolves around the drive gear in accordance with the rotational direction of the drive gear while constantly meshing with the drive gear, and one of the drive gears. A pair of reel gears are arranged at a position where the planetary gears rotated in the opposite direction mesh with each other and a position where the planetary gears rotated in the opposite direction mesh with each other, and the reel gear is rotated by the reel gear. a reel stand; and a partial reel that is arranged so as to mesh with the planet gear in the middle of a circular trajectory in which the planet gear moves from a position where it meshes with one reel gear to a position where it meshes with the other reel gear, and which is rotated by the planet gear. a mode switching gear having sharp teeth; a head base provided with a magnetic head and movable in a direction toward and away from the reel stand; a pinch roller disposed coaxially with the mode switching gear, and while the mode switching gear is rotated in one direction by the planetary gear, the head base is moved to bring the magnetic head into contact with the magnetic tape, and the pinch roller is pressed against the capstan. 1st to set the play mode
The switching cam part is formed to have a rotation radius smaller than that of the first switching cam part, and the head base is moved while the mode switching gear is rotated by the planetary gear in the opposite direction to the switching to the play mode. A tape player comprising: a second switching cam part that sets a review mode by bringing the magnetic head into light contact with the magnetic tape while the magnetic head is separated from the capstan; 2. In the tape player according to claim 1, a second switching cam section having the same rotation radius as the first switching cam section is provided in place of the second switching cam section having a smaller rotation radius than the first switching cam section. and while the mode switching gear is rotated in the opposite direction to the switching to the play mode, this second switching cam portion moves the head base to bring the magnetic head into contact with the magnetic tape and press the pinch roller against the capstan. A tape player that sets reverse play mode.