JPS5948860A - Tape recorder - Google Patents

Abstract

PURPOSE:To prevent the malfunction of a tape recorder, by providing a detecting means which detects that a cassette tape is shifted to its loading position, and disabling the detachment of a tape driving device while said detecting means is working. CONSTITUTION:When a cassette tape is shifted to its loading position, a relay plate moves to the right. Then a detection switch 53 is actuated by a projected part of the relay plate to detect that the tape is at its loading position. The switch 53 is connected to a control part 64 where a tape driving device is discharged. While the switch 53 is kept on, the actuation of a release plunger 59 is inhibited by the part 64 although an ejection button 65 is operated. Therefore the tape driving device is not discharged. As a result, it is impossible to unload the tape driving device when the tape is at its loading position. In such a way, a malfunction of a tape recorder is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape recorder in which a tape running device for running a magnetic tape in a cassette tape is detachably attached to the main body of the device.

Conventional configuration and its problems In recent years, tape recorders have tended to be used for multiple purposes.

For example, when using it indoors, etc., a tape running device that runs the magnetic tape of the cassette tape is attached to the main body of the device in order to listen to high-volume audio through speakers, etc., and when using it outdoors, etc., a tape running device that runs the magnetic tape is attached to the device. For this purpose, a method is used in which the tape running device is removed from the main body of the device and the audio is listened to through headphones or the like.

Furthermore, car stereos and the like tend to be used for multiple purposes, such as by integrating the car stereo main body and the car stereo system and installing it inside the car for use inside the car, or by removing it from the car and using it outside or inside the car.

On the other hand, in tape recorders, the parts that generally require repair service after long-term use are the magnetic head, belt,
Most of them are tape running system parts such as motors. Therefore, there is a demand for improved workability during repair services.

First, in conventional tape recorders, when the tape running device is attached to and detached from the main body of the device, a cassette mounting means such as a cassette holder is provided integrally with the tape running device.

Therefore, when used as a portable device, there are problems in that the device becomes large and heavy.

In particular, in order to improve the operability of mounting the cassette, the cassette mounting means reciprocates between a first position where the cassette tape is mounted and removed and a second position where the cassette tape is mounted on the tape running device. When a cassette tape is inserted from the cassette insertion slot in this position, the cassette tape is automatically transferred to the cassette tape slot. This was noticeable due to the complicated configuration and the large number of parts. - If you remove the car stereo main body or car stereo system from the car and use it, it is necessary to remove the device itself and use it as a portable device. large,
Moreover, it was very inconvenient because it was heavy.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a tape recorder in which the tape running device is detached from the main body of the device and can be used with a small size and light weight. To provide a tape recorder in which the tape running device is completely unable to be removed in this state, thereby preventing malfunctions.

Structure of the Invention The present invention provides a device in which a tape running device for running a magnetic tape of a cassette tape is detachably attached to an apparatus main body, and a cassette mounting means for mounting and removing a cassette tape to and from the tape running device that is completely installed in the device main body. This is a tape recorder provided in the main body, and the cassette mounting means is capable of reciprocating between a first position for mounting and dismounting the cassette tape and a second position for mounting the cassette tape on a tape running device, and the cassette tape is moved back and forth between the first position for mounting and dismounting the cassette tape and the second position for mounting the cassette tape on a tape running device. A detecting means for detecting the position of the cassette tape is provided, and when the detecting means is detecting the cassette tape, the tape traveling device cannot be removed at all.

Description of examples An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is the main body of the device, a first insertion section 1 into which a cassette tape is inserted, and a tape transport device 3.
It has a second insertion part 1b for inserting.

The tape running device 3 is the first tape running device 3. second reel stand 4.5;
Capstan 6, pinch roller 7, magnetic head 8, playback switch 9, stop-switch 1o, fast-forward switch 11
, a rewind switch 12, a volume volume 13, a sound quality polymer 14, etc., and reproduces and fast-forwards a magnetic tape (not shown) of a cassette tape loaded in the cassette storage section 3a.

It is configured to perform tape running operations such as rewinding. Note that these tape running operations use well-known methods and will not be described in detail here.

3 to 7 show a cassette mounting means for a tape recorder according to an embodiment of the present invention.

Reference numeral 15 designates a first support plate, and reference numeral 16 designates a second support plate, both of which are formed in a truncated shape and are housed in the device main body 1.

17 is a cassette transfer plate, which is connected to the first cassette by a shaft 18.19;
The support plate 15 is slidable in the elongated hole 16b formed in the L-shaped −° surface 152L, and has a tip portion 17a and a bent portion 17.
b, one side 16ai of the L-shape of the second support plate 16
It is configured to be sandwiched with a gap.

A cassette lock 20 is provided on the cassette transfer plate 17 via a plate spring 21, and is adapted to be engaged with the reel stand insertion holes 2&, 2b of the cassette tape 2.

A third support plate 22 is attached to one L-shaped surface 162L of the second support plate 16.

Reference numeral 23 denotes a cassette transfer arm, which is rotatably provided on the shaft 24 of the third support plate 22, and the shaft 26 at one end 23a is slidably engaged with the keyhole-shaped elongated hole 17C of the cassette transfer plate 17. 27 is a first relay plate, which is slidable in the directions of arrows A and B on the axis (not shown) of the third support plate 22. The elongated hole 271L is provided with the cassette transfer arm 2.
3 is engaged with the shaft 28 at the other end 23b.

29 is a second relay plate, which is slidably provided on the shaft 30.31 of the L-shaped other surface 16b of the second support plate 16, and is biased by a spring 32 in the direction indicated by the arrow F. .

A first cam 33 is rotatably provided on the shaft 34 of the L-shaped other surface 16b of the second support plate 16.
a can come into contact with the shaft 35 of the second relay plate 29.

A second cam 36 is rotatably provided on the shaft 34 concentrically with the first cam 33, and the cam surface 36a abuts the shaft 37 of the bent portion 27b of the first relay plate 27. and has spur gears 36bf.

Above 1. The second cams 33, 36 are connected by connecting means (not shown) so that they can rotate together.

38 is a first relay booth, and L of the second support plate 16 is
The counterclockwise rotation of the motor 4Q is transmitted through the belt 41, and the motor 4Q is rotated counterclockwise in FIG. 3 in the same way as the motor 4Q. It has a spur gear 38&.

42 is a second relay pulley, which is connected to L of the second support plate 16.
The spur gear 42& is rotatably provided on the shaft 43 of the letter-shaped one surface 16a, and is meshed with the spur gear 38a of the first relay pulley 38, and has a worm gear 42b.

44 is a third relay pulley, which is connected to L of the second support plate 16.
The worm wheel 442L is rotatably provided on the shaft 46 of the other surface 16b of the letter shape, and the worm wheel 442L is engaged with the worm gear 42b of the second relay pulley 42, and the spur gear 44b is engaged with the spur gear 36b of the second cam 36. They are designed to mesh together. Therefore, when the motor 4Q is rotated counterclockwise in FIG. 3, the first relay pulley 38 is also rotated counterclockwise, and the second relay pulley 42
is rotated clockwise, and further the third relay pulley 4
4 is rotated counterclockwise in FIG.
The second cam 33,36 is adapted to be rotated clockwise.

Reference numeral 46 denotes a U-shaped holder holding plate, and shafts 47 and 48 provided integrally with this hold the L-shaped other surface 150 of the first support plate 15 and the second support plate 16, respectively.
is rotatably supported on the L-shaped other surface 16b of the second
The shaft 49 of the leg portion 4e)L on the support plate 16 side is engaged with the cam hole 29& of the second relay plate 29, and is biased clockwise in FIG. 7 by the spring 6o.

Reference numeral 61 denotes a cassette holder which slidably holds the cassette tape 2 and has a stepped portion 61a.

51b, bent portions 510, 51d are engaged with U-shaped tip portions 46kl, 46C of the boulder 1 retainer plate 46 and guide holes 46d, 46e formed in the tip portions 46b, 460. It has become.

52 is a first detection switch, which is connected to the cassette transfer plate 17;
It is designed so that it can be operated on the axis 18 of i:υ in the state shown in FIG.

Reference numeral 53 denotes a second detection switch, which is operated by the protrusion 29b of the second relay plate 29 in the state shown in FIG.

The cassette holder 61 is located in the eighth position when the tape running device 3 is attached to the main body 1 as shown in FIG.
As shown in FIGS. 10 to 10, the cassette tape 2 is placed together with the cassette tape 2 in the cassette storage section 32L of the tape traveling device 3.

64 is a connection 'i<IS' provided in the device main body 1;
As shown in FIG.
is connected to the tape running device 3 while being attached to the
Power and the like are supplied to the tape running device 3 from the device main body 1.

FIG. 11 shows an embodiment in which the tape running device 3 is used after being separated from the main body 1. 66 is a power supply unit for the tape running device 3, and a connector (not shown) is connected to the tape running device 3. ) and is designed to supply power.

FIGS. 12 and 13 show a lyric writing means that maintains the state in which the tape running device 3 is attached to the main body 1 of the device.

A lock lever 66 is rotatably provided on the shaft 67 of the apparatus main body 1, and a bent portion 562L at one end is biased clockwise by a spring 58 into a lock hole 3b formed in the tape traveling device 3. engaged.

A release plunger 59 is connected to a bent portion 66b at the other end of the lock lever 66 via a relay rod 60.

Reference numeral 61 indicates a mechanism for ejecting the tape running device 3 provided in the apparatus main body 1, and biasing the tape moving device 3 in the ejection direction (in the direction of arrow B) while the tape running device 3 is attached to the apparatus main body 1. It is supposed to be done.

FIG. 14 is a block diagram showing the control of the motor 4Q and the release pusher 59, where 62 is a first control section;
The first detection switch 52 and the second detection switch 53
A first eject switch 63 provided on the apparatus main body 1 is connected to the main body 1, and the motor 40 is connected to the main body 1.

64 is a second control unit, which includes the second detection switch 63 and a first eject switch 6 on the front of the device main body 1.
A second eject switch 65 provided with 3 is connected, and a release plunger 59 is also connected.

It has the above configuration, and its operation will be explained next.

The operation of attaching the tape running device 3 to the device main body 1 will be explained.

From the state shown in FIG.
into the insertion portion 1b of the device, and attach it as shown in FIG.

When the tape running device 3 is attached to the main body 1, it is connected to the connecting portion 54 as shown in FIG. The portion 66a is engaged with the lock hole 3b of the tape traveling device 30, and the tape traveling device 3 is
Poems can be written on the main body 1 of the device in the state shown in FIGS.

Next, the mounting operation of the cassette tape 2 will be explained.

As shown in FIGS. 2 and 8, from the state in which the tape running device 3 is attached to the device main body 1, as shown in FIGS. 3 and 8, the first insertion portion 1a of the device main body 1 and the When the cassette tape 2 is fully inserted into the cassette holder 51 in the direction of arrow A, the cassette lock 2o is locked into the reel stand insertion hole 22L of the cassette tape 2.

When the cassette tape 2 is further inserted in the direction of the arrow from the state shown in FIGS. 3 and 8, the bent portion 17b of the cassette transfer plate 17 is pressed by the cassette tape 2, and the cassette transfer plate 17 is similarly slid in the direction of the arrow. Ru.

When the cassette transfer plate 17 is biased in the direction of the arrow, the cassette transfer arm 23 is rotated clockwise against the spring 26. At this time, the first relay plate 27 is slid in the direction of arrow B, but the shaft 37 of the bent portion 27b is
Since the cassette transfer arm 23 is separated from the cam surface 36 & of the cassette transfer arm 23, there is no problem in clockwise rotation of the cassette transfer arm 23.

1. When the cassette transfer plate 17 is slid in the direction of the arrow, the first detection switch 62 is operated, and the first control section 62 rotates the motor 4Q counterclockwise in FIG. Ru.

When the motor 40 is rotated counterclockwise in FIG. 3, the belt 41, the first relay pulley 38°, the second relay pulley 42. Via the third relay pulley 44, the first and second cams 33,36 are rotated clockwise in FIG.

When the second cam 36 is rotated clockwise, the first relay plate 27 rotates between the cam surfaces a, 6 of the second cam 36.
a ICJ: Re-bending portion 2-r Since the shaft 37 of b is pressed, it slides in the direction of arrow B, and therefore the cassette transfer arm 23 rotates clockwise in FIG. 3 against the spring 26. Then, the cassette transfer plate 17 is slid in the direction indicated by the arrow.

When the transfer plate 17 is slid in the direction of the arrow, the cassette tape 2 is similarly guided to the cassette holder 51 in the direction of the arrow A since the reel base insertion hole 2a is engaged with the cassette lock 2o. It will be transported in the same condition.

At this time, the first cam 33 is also rotated clockwise in FIG. 4, but the shaft 36 of the second relay plate 29 is
is controlled by the cam surface 33a of the cam 33, and is held in the state shown in FIG. 4 together with the boulder holding plate 46. Therefore, the cassette boulder 51 is maintained in the state shown in FIGS. 8 and 9.

The cassette tape 2 is transferred in the direction of the arrow, from the state shown in FIGS. 3 and 8 to the state shown in FIG. When the second cams 33 and 36 are further rotated clockwise, the second relay plate 29, which is biased by the spring 32 in the direction of arrow A, is rotated so that the shaft 36 of the first cam 33 is rotated. It is controlled by the cam surface 33a and is slid from the state shown in FIG. 4 to the state shown in FIG. 6.

At this time, the shaft 37 of the bending portion 27b of the first relay plate 27 is controlled by the cam surface 36a of the second cam 36, and the cassette transfer arm 23 and the cassette transfer plate 17 move the cassette tape 2 as shown in FIG. And it is held in the same state as when it was transferred from the state shown in FIG. 8 to FIG. 9 (the crowded state shown in FIG. 5).

When the second relay plate 29 is slid from the state shown in FIG. 4 to the state shown in FIG. 6, the boulder holding plate 46 rises to the spring 5o and is biased clockwise in FIG. The shaft 49 of the leg portion 46a is connected to the cam hole 29 & of the second relay plate 29.
, and is rotated clockwise as shown in FIG. Therefore, the force center holder 51 is moved from the state shown in FIG. 9 to the state shown in FIGS. It is attached to the tape running device 3.

When the second relay plate 29 is slid from the state shown in FIG. 4 to the state shown in FIG. 6, the second detection switch 53 is operated by the protrusion 29b of the second relay plate 29, The motor 40 is stopped by the control unit 62 of the cassette tape 2, and the cassette tape 2 is held attached to the tape running device 3.

With the cassette tape 2 mounted on the tape running device 3, press the playback switch 9. When the stop switch 10, fast forward switch 119, and rewind switch 12 are all operated, the magnetic tape (not shown) of the cassette tape 2 is controlled to run. Note that this tape running control is well known and will not be described in detail here.

Next, the ejecting operation of the cassette tape 2 will be explained.

When the first eject switch 63 is operated with the cassette tape 2 mounted on the tape running device 3 and the running of the magnetic tape (not shown) stopped, the first control unit 62 rotates the motor 4o in the counterclockwise direction in FIG.
l relay pulley 38. Second relay pulley 42. The first and second cams 33.3 via the third relay pulley 44
6 is rotated clockwise in FIG.

When the first and second cams 33,36 are rotated clockwise in FIG.
is controlled by the cam surface 33a and slid in the direction of arrow B.

When the second relay plate 29 is slid in the direction of arrow B, the fill 149 of the holder holding plate 46 is controlled by the cam hole 29&, and is rotated counterclockwise in FIG.

Therefore, the cassette boulder 51 is removed from the cassette storage section 3a of the tape transport device 3 together with the cassette tape 2, and moved from the state shown in FIG. 10 to the state shown in FIG. 9.

The shaft 37 of the bending portion 27b of the first relay plate 27 is controlled by the cam surface 36a of the second cam 36, and the cassette transfer arm 23 and the cassette transfer plate 17 are controlled by the cam surface 36a of the second cam 36.
Since it is in the state shown in the figure, the reel stand insertion hole 2a of the cassette tape 2 is engaged with the cassette lock 20.

When the first and second cams 33, 36 are further rotated clockwise, the shaft 37 of the bending portion 27b of the first relay plate 27 is controlled by the cam surface 362L of the second cam 36. , since the cassette transfer arm 23 is urged counterclockwise in FIG. 5 by the spring 26, the arrow A
cassette transfer arm 23
is rotated counterclockwise, and the cassette transfer plate 17 is slid in the direction of arrow B.

When the cassette transfer plate 17 is slid in the direction of arrow B, the cassette tape 2 is pressed by the bent portion 17b of the force transfer plate 17, changing from the state shown in FIG. 9 to the state shown in FIG. 8 in the direction of arrow B. The cassette holder 61 guides the cassette holder 61 and transports the cassette.

It is controlled by the cam surface 33a of the first cam 33 and held together with the holder holding plate 46 in the state shown in FIG. 4. Therefore, the cassette holder 51 is held in the state shown in FIGS. 8 and 9.

When the cassette transfer plate 17 is slid in the direction of arrow B, the first detection switch 52 is operated by the shaft 18 as shown in FIG. Therefore, the first control section 62 stops the motor 4o and puts it in the ejection state.

Next, the detachment operation of the tape running device 3 from the device main body 1 will be explained.

In the installed state shown in FIGS. 2 and 12, and with the cassette tape 2 ejected as shown in FIG.
When the eject switch 66 is operated, the release plunger 69 is operated by the second control section 64, and the lock lever 66 is rotated counterclockwise against the spring 58.

Accordingly, the bent portion 561L of the lock lever 56 comes off from the lock hole 3b, and the tape traveling device 3 is ejected by the ejection spring 61 from the state shown in FIG. 12 to the state shown in FIG. 13. Thereby, the tape running device 3 can be pulled out with fingers or the like.

The cassette tape 2 is mounted on the tape running device 3 as shown in FIGS. 6 and 10, and the second eject switch 66 is operated with the second detection switch 63 operating to detect it. Even if the second control section 64
Therefore, the release plunger 69 is not operated, and the ejecting operation of the tape traveling device 3 is not performed.

Therefore, the cassette transfer means such as the cassette holder 61 will not be damaged.

16 and 16 are other implementations of the present invention? This is done by mechanically detecting that when the cassette tape 2 is attached to the tape running device 3 in the main body 1 of the apparatus, the tape running device 3 cannot be removed.
Reference numeral 6 denotes a blocking lever that is rotatably provided on a shaft 67 provided on the tape traveling device 3 and biased clockwise by a lever spring (not shown), and has a detection section at one end for detecting the cassette tape 2. 66&, and the other end thereof is fitted with a blocking portion 66b that can be fitted into a fitting recess 1C formed in the second recessed portion 1b of the device main body 1.

As a result, when the cassette tape 2 is mounted on the tape running device 3, the direct blocking lever 66 is rotated counterclockwise against the spring, and the blocking portion ee
b is engaged with the engagement recess 1C of the device main body 1, as shown in FIG.

Therefore, in this state, detachment of the tape traveling device 3 is prevented.

On the other hand, when the cassette tape 2 is removed from the tape running device 3, the blocking lever 66 returns to its original state due to the spring, and the blocking portion eeb is no longer held in the locking recess 1C.
The tape running device 3 can now be taken out.

When the tape running device 3 is detached from the main body 1, it can be used as a portable device by connecting the power supply unit 55 and connecting headphones (not shown) or the like.

In this case, since the tape running device 3 does not include a cassette transfer means for mounting the cassette tape 2 into the cassette storage section 3a, it can be used in a small and lightweight manner.

On the other hand, when using the apparatus main body 1 with the entire tape running device 3 attached, the cassette tape 2 is loaded using the cassette transfer means, so that the entire cassette tape 2 is inserted into the first insertion section 1a. It can be installed simply by inserting it, and is easy to operate.1) When used in a car stereo, etc., it can be installed easily and safely while driving.

Effects of the Invention As described above, the present invention has a tape running device that runs a magnetic tape of a cassette tape on the main body of the device, which is detachable.
The apparatus main body is provided with a cassette mounting means for mounting and removing a cassette tape with respect to a tape running device mounted on the apparatus main body, and the force center mounting means is set to a first position for mounting and removing a cassette tape, and a cassette tape is set to a first position for mounting and dismounting a cassette tape. A detecting means is provided, which is capable of reciprocating to a second position where the cassette tape is mounted on the tape running device, and detects that the cassette tape is mounted on the tape running device by moving the cassette tape mounting means to the second position. During the detection operation, detachment prohibition means is provided to prevent the tape running device from detaching.According to this, since the tape running device does not have a complete cassette mounting means, the tape running device cannot be attached to the main body of the device. It is small and lightweight and can be used once after being removed from the tape, and it also improves workability in repair services for parts related to tape running, such as magnetic heads, belts, and motors.

Then, when the tape running device is attached to the main body of the device and the cassette tape is attached to the tape running device by the cassette mounting means, the tape running device cannot be removed. Even if the tape running device was detached, the operation was not performed, and the tape mounting means was not damaged, and a safe tape recorder was obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a tape recorder in an embodiment of the present invention, with the tape running device removed from the main body of the tape recorder, FIG. 2 is a perspective view showing the same attached, and FIG. 3 is a cassette transfer device. 4 is a schematic side view of the cassette tape, FIG. 5 is a schematic plan view of the installed state, and FIGS. 6 and 7 show the configuration of the means. is a schematic side view, and Figures 8, 9, and 10 are cassette I-
FIG. 11 is a schematic side sectional view showing the tape mounting operation, FIG. 11 is a perspective view showing a state in which a power supply unit is connected to the tape running device, FIG. 12 is a schematic plan view showing the tape running device in a lyric writing state, and FIG. 13 14 is a schematic plan view of the discharge state, and FIG. 14 is a block diagram showing the control section of the motor and plunger. f215
16 are sectional views of main parts showing other embodiments. 1... Device main body, 1a... First insertion section, 1b... Second insertion section, 1C...
Engagement recess, 2...Cassette tape, 3...
...Tape traveling device, 17...Cassette transfer plate, 61...Cassette holder, 63...
-Second detection switch, 69...Release plunger, 66...Block lever. 381 Fig. 2 1 @ 5 Fig. 7 Fig. 8 Fig. 1' 3α Fig. 9 a Fig. 1O Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Fig. 16 Fig. 5f bb 388-

Claims (2)

[Claims] (1) The tape running device for running the magnetic tape of a cassette tape in the main body of the device is completely removable, and the main body of the device is provided with a cassette mounting means for mounting and removing the cassette tape from the tape running device attached to the main body of the device. , the cassette loading means is a first unit for loading and unloading the cassette tape;
and a second position where the cassette tape is mounted on the tape running device, and detecting that the cassette tape is mounted on the tape running device by moving the cassette mounting means to the second position. 1. A tape recorder comprising means for preventing detachment of the tape traveling device during the detection operation of the detecting means. (2) The detecting means is not a lever that is rotatably provided on the tape running device and is directly rotated by the cassette tape, and the detachment preventing means holds a part of the lever or an interlocking member of this lever. 2. The tape recorder according to claim 1, further comprising a retaining means provided on the main body of the device.