JPS5948859A - Tape recorder - Google Patents

Abstract

PURPOSE:To prevent the damage of a cassette shift means, by providing a means which detects that the cassette shift means is at a position where a cassette tape can be loaded and unloaded, and permitting the detachment of a tape driving device only when said detecting means is working. CONSTITUTION:A detection switch 52 detects that a cassette shift means is at a position where a cassette tape can be loaded and unloaded. This switch 52 is connected to a tape traveling control part 64 which controls a release plunger 59 for lock of a tape driving device. Then the tape driving device can be detached only when the switch 52 is active, e.e., when the cassette tape can be accepted. Therefore, the switch 52 is kept inactive while the cassette shift means is working, and the cassette driving device is not released even with operation of an ejection switch 65. In such a way the damage of the cassette shift means 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 used indoors, etc., a tape running device that runs the magnetic tape of a cassette tape is attached to the main body of the device so that the user can listen to high-capacity audio through a speaker, etc., and when used outdoors, etc., a tape running device is attached to the main body of the device. A method is used in which the tape running device is detached from the main body of the device and the audio is listened to through headphones or the like.

There is still a tendency for car stereos and the like to be used for multiple purposes, such as integrating the car stereo main body and car stereo system and installing it inside the car for use inside the car, or removing it from the car and using it outside and 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 were problems in that it became 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. A tape recorder equipped with a cassette transfer means, generally called a slot-in type, which automatically transfers a cassette tape to a second position when the cassette tape is inserted from the cassette insertion slot in the second position, has a complicated structure. This was noticeable due to the large number of parts.

In addition, when using a car stereo main body or car stereo system etc. by removing it from the car, the main body of the device is removed and used, so it is too large to be used as a portable device.
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 detached from the apparatus main body is small and lightweight and can be used. To provide a safe tape recorder in which a cassette tape cannot be attached or detached unless the means is in a position where it can be attached or detached.

Composition of the Invention The present invention has a tape running device that runs a magnetic tape of a cassette tape attached to and detachable from an apparatus main body, and a cassette transporting means that attaches and detaches a cassette tape to and from the tape running device mounted on the device main body. This is a tape recorder provided in the main body of the device, and the cassette transfer means is capable of reciprocating between a first position for attaching and detaching the cassette tape and a second position for attaching the cassette tape to a tape running device. A detecting means for detecting that the cassette is in the first position is provided, and the tape traveling device can be removed only when the detecting means detects the cassette transporting means.

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 1a into which a cassette tape is inserted, and a tape running 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 4.6,
Capstan 6, pinch roller 7, magnetic head 8, playback switch 9, stop switch 1o, fast forward switch 11,
It has a rewind switch 12, a volume volume 13, a sound quality volume 14, etc., and plays a magnetic tape (not shown) of a cassette tape loaded in the cassette storage section 3a.
Fast forward.

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 denotes a first support plate, and reference numeral 16 denotes a second support plate, both of which are formed in a truncated shape and are attached to the apparatus main body 1.

Reference numeral 17 denotes a cassette transfer plate, which is slidable from the shaft 1g, 191C into a long hole 15b formed in the L-shaped side 16 of the first support plate 16, and has a tip portion 17a and a bent portion 1.
7b, one L-shaped surface 16a of the second support plate 16
It is configured to sandwich the two parts with a gap between them.

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

A third support plate 22 is attached to the L-shaped surface 16a 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 25 at one end 23& is slidably engaged with the keyhole-shaped elongated hole 170 of the cassette transfer plate 17. and is biased counterclockwise by a spring 26.

Reference numeral 27 denotes a first relay plate, which is provided on the axis (not shown) of the third support plate 22 so as to be slidable in the direction of the arrow B, and the other end of the cassette transfer arm 23 is provided in the elongated hole 272L. 23
The shaft 28 of b is engaged.

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 in the direction of the arrow by a spring 32. .

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 is brought 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. It has a spur gear 3sb.

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 pulley, which is connected to L of the second support plate 16.
The counterclockwise rotation of a motor 40 is transmitted through a belt 41, and the motor 40 is rotated counterclockwise in FIG. 3 in the same way as the motor 40. It has spur gear 3B&.

42 is a second relay pulley, which is connected to L of the second support plate 16.
The spur gear 42a is rotatably provided on the shaft 43 of the letter-shaped one side 162L, and the spur gear 42a is connected to the spur gear 3B& of the first relay pulley 38.
The worm gear 42b is meshed with the 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 45 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 40 is rotated counterclockwise in FIG. 3, the first relay pulley 38 is also rotated counterclockwise, and the second relay pulley 4
2 is rotated clockwise, and the third relay pulley 44 is further 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 15C 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 462L 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 50.

A cassette holder 51 slidably holds the cassette tape 2 and has a stepped portion 61a.

61b - The bent portions s1c and 61d are the holder retaining plate 4
6 U-shaped tip portions 46b, +6c and the tip portion 46
It is adapted to be engaged with guide holes 46d, 468 formed in b, 460.

62 is a first detection switch, which is connected to the cassette transfer plate 17.
The shaft 18 allows the cassette tape 2 to operate in the state shown in FIG. 3, that is, in a state in which the cassette tape 2 can be attached and detached.

Reference numeral 63 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 51 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. 1 to 10, the cassette tape 2 is located in the cassette storage section 3a of the tape traveling device 3 together with the cassette tape 2.

Reference numeral 64 denotes a connection portion provided on 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 holding means for holding the tape running device 3 attached to the main body 1 of the apparatus.

A lock lever 56 is rotatably provided on the shaft 57 of the apparatus main body 1, and the bent portion 56a at one end is biased clockwise by a spring 68 into the lock hole 3b formed in the tape traveling device 3. is engaged.

A release plunger 69 is connected to the bent portion 56b at the other end of the lock lever 66 via a relay rod 60.

Reference numeral 61 denotes a discharge spring for the tape running device 3 provided in the device main body 1, and when the tape running device 3 is attached to the device main body 1, the tape running device 3 is moved in the ejection direction (in the direction of the fitting port B).
It is designed to be energized.

FIG. 14 is a block diagram showing the control of the motor 40 and the release plunger 59, and -62 is a first control section;
The first detection switch 62. Second detection switch 63
A first eject switch 63 provided on the device main body 1 is connected thereto, and a motor 40 is further connected thereto.

64 is a second control unit, which includes the first detection switch 52 and a first eject switch 6 on the front side of the device main body 1.
A second eject switch 65 provided together with 3 is connected, and the release plunger 59 is further connected.

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

First, 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 ship connection part 64 as shown in FIG. The curved portion 56a is engaged with the lock hole 3b of the tape running device 3, and the tape running device 3 is
It is held in the device main body 1 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, the tape running device 3 is attached to the main body 1 of the apparatus, and as shown in FIGS. 3 and 8, the first insertion section 1a of the main body 1 and the cassette When the cassette tape 2 is inserted into the holder 51 in the direction of arrow A, the cassette lock 20 is engaged with the reel stand insertion hole 22L of the cassette tape 2.

When the cassette tape 2 is further inserted in the direction of arrow A 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 is similarly slid in the direction of arrow A. 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, and the shaft 37 of the bent portion 27b is
Since it is in a state where it is separated from the cam surface 36a of No. 6, there is no problem with the clockwise rotation of the force transfer arm 23.

When the cassette transfer plate 17 is still slid in the direction of arrow A, the first detection switch 62 is operated, and the first control section 62 rotates the motor 40 counterclockwise in FIG. .

When the motor 40 is rotated counterclockwise in FIG. 3, the belt 41. The first and second cams 33, 36 are rotated clockwise in FIG. 4 via the first relay pulley 38, the second relay pulley 42, and the third relay pulley 44.

When the second cam 36 is rotated clockwise, the first relay plate 27 slides in the direction of arrow B because the shaft 37 of the bent portion 27b is pressed by the cam surface 362L of the second cam 36. Therefore, the cassette transfer arm 23 is rotated clockwise in FIG. 3 against the spring 26, and the cassette transfer plate 17 is slid in the direction indicated by the arrow.

When the cassette transfer plate 17 is slid in the direction of the arrow, the cassette tape 2 is similarly guided by the cassette holder 61 in the direction of the arrow since the reel base insertion hole 2a is engaged with the cassette lock 20. Transported in one state.

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 holder holding plate 46. Therefore, the cassette holder 51 is held 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 in the direction of the arrow by the spring 32, moves so that the shaft 35 is aligned with the cam surface of the first cam 33. 33a, it is slid from the state shown in FIG. 4 to the state shown in FIG. 6.

At this time, the shaft 3 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 force transfer arm 23 and the cassette transfer plate 17 move the cassette tape 2 It is held in the same state (the state shown in FIG. 6) as when it was transferred from the states shown in FIGS. 3 and 8 to FIG. 9.

When the second relay plate 29 is slid from the state shown in FIG. 4 to the state shown in FIG. The shaft 49 of the portion 46a is connected to the cam hole 29a of the second relay plate 29.
6, and is rotated clockwise as shown in FIG. Therefore, the cassette holder 61 is moved from the state shown in FIG. 9 to the state shown in FIGS. It is attached to the device 3.

When the second relay plate 29 is slid from the state shown in FIG. 4 to the state shown in FIG. , the motor 40 is stopped by the first control section 62, 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, the fast forward switch 112 and the rewind switch 12 are operated, the magnetic tape (not shown) of the cassette tape 2 is controlled to run. Since this tape running control is well known, it will not be explained in detail here.

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

7) When the first eject switch 63 is operated with the tape 2 attached to the tape running device 3 and the running of the magnetic tape (not shown) stopped, the first The motor 40 is rotated counterclockwise in FIG. 3 by the control unit 62 of the belt 41. 1st
Relay pulley 38. Second relay pulley 42. The first and second cams 33° 36 via the third relay pulley 44
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 shaft 49 of the holder holding plate 46 is controlled by the cam hole 29&, and is rotated counterclockwise in FIG. Therefore, the cassette holder 51 is removed from the cassette storage section 3a of the tape traveling device 30 together with the cassette tape 2, and
The state shown in FIG. 10 is moved to the state shown in FIG.

At the same time, the axis 3 of the bending MB 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
is in the state shown in FIG. 5, so 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 first relay plate 2-7 is bent at the bent portion 27b.
The shaft 3 is controlled by the cam surface 36a of the second cam 36, and the force transfer arm 23 is biased counterclockwise in FIG. 6 by the spring 26, so that the arrow A
Therefore, the force center transfer arm 23 is rotated counterclockwise, and the sumo wrestler soto transfer plate 1 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 cassette 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.

At this time, the shaft 35 of the second relay plate 27 is controlled by the cam surface 33a of the first cam 33, and the second relay plate 27 is held in the state shown in FIG. 4 together with the holder holding plate 46. Therefore, the cassette holder 51 is held in the state shown in FIGS. 8 and 9.

When the force transfer plate 1 is slid in the direction of arrow B, the first detection switch 52 is operated by the shaft 18 as shown in FIG. Therefore, it is placed in the ejected 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.
While the detection switch 52 is being operated by the shaft 18 of the cassette transfer plate 17, the second eject switch 65
When operated, the release plunger 59 is operated by the second control section 64, and the lock lever 56 is rotated counterclockwise against the spring 58. Therefore, the lock lever 5
6 is removed from the lock hole 3b, and the tape traveling device 3 is moved from the state shown in FIG. 12 to the state shown in FIG.
It is discharged as shown in the figure. Thereby, the tape running device 3 can be pulled out with fingers or the like.

When the cassette tape 2 is attached to the tape transport device 3 as shown in FIGS. 6 and 10, and when the cassette tape 2 is being transferred as shown in FIG. The detection switch 62 of the second
Even if the release plunger 59 is operated by the second control section 64, the release plunger 59 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.

When the tape running device 3 is detached from the device main body 1, it can be used as a portable device by connecting a power supply unit 65 and connecting headphones (not shown) or the like.

In this case, since the tape transport device 3 does not include a cassette transfer means for loading 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 tape running device 3 attached, the cassette tape 2 is loaded using the cassette transfer means, so the cassette tape 2 is inserted into the first insertion section 1a. It can be installed simply by inserting it and is easy to operate. For example, when used in a car stereo, it can be installed easily and safely even while driving.

Effects of the Invention As described above, the present invention provides a cassette in which a tape running device for running a magnetic tape of a cassette tape is detachably attached to the main body of the device, and a cassette tape is attached to and removed from the tape running device mounted on the main body of the device. A transfer means is provided in the main body of the apparatus, and the cassette transfer means is capable of reciprocating between a first position for attaching and detaching the cassette tape and a second position for attaching the cassette tape to the tape running device, and the cassette transfer means A detecting means for detecting that the tape traveling device is in position 1 is provided, and the tape traveling device can be detached from the main body of the device only when the detecting device detects the cassette transporting device.

According to the present invention, since the tape running device does not include a cassette mounting means, the tape running device is small in size when used detached from the main body of the device.

It is lightweight and can be used, and it also improves workability in repair services for parts related to tape running, such as magnetic heads, belts, and motors. The tape transport device can be detached from the main body of the apparatus only when the cassette transport means is in the first position, that is, when the cassette transport means is in a position where the cassette tape can be attached and removed, so that the cassette tape can be removed from the tape transport device. Not only when the cassette tape is installed, but also when an attempt is made to remove the tape transport device while the cassette tape is being transferred, it is not possible to do so, and therefore the cassette 7) transfer means etc. are often damaged, making it highly safe. A tape recorder was obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the 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 tape running device attached, and FIG. Fig. 4 is a schematic side view showing the configuration of the transfer means, and Fig. 4 is a schematic side view of the cassette tape, and Fig. 6 is a schematic plan view showing the mounted state. Figs.
8, 9, and 10 are schematic side sectional views showing the loading operation of the cassette tape. FIG. 11 is a perspective view showing the state in which the power supply unit is connected to the tape running device. FIG. 12 is a schematic plan view showing the holding state of the tape running device, FIG. 13 is a schematic plan view showing the tape discharging state, and FIG. 14 is a block diagram showing the control section of the motor and plunger. DESCRIPTION OF SYMBOLS 1... Device main body, 1a... First insertion section, 1b... Second insertion section, 2... Cassette tape, 3...・・・Tape running device, 1T・
...Cassette transfer plate, 51...Cassette holder, 62...First detection switch, 69
・・・・・・Release plunger. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Fig. 4 C Fig. 5 Fig. 7 Fig. 8 Fig. 1゛3α Fig. 9 ty- Fig. 10 Fig. 11 Fig. 2 Fig. 12 Fig. 13

Claims (1)

[Claims] A tape running device for running a magnetic tape of a cassette tape is detachably attached to the main body of the device, and a cassette transfer means for loading and unloading a cassette tape to and from the tape running device mounted on the main body of the device is provided, The transfer means is capable of reciprocating between a first position for attaching and detaching a cassette tape and a second position for attaching the cassette tape to a tape running device, and the cassette transfer means
1. A tape recorder characterized in that the tape recorder is provided with a detection means for detecting that the tape transport device is in the position of the cassette, and that the tape transport device can be removed from the main body only when the detection means detects the cassette transfer means.