JPH0721842B2 - Signal transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial Field B Outline of the Invention C Conventional Technology D Problems to be Solved by the Invention E Means for Solving Problems F Action G Example G-1 Structure (Fig. 1) G-2 Use Example of state (FIGS. 2 and 3) G-3 Other example of use state (FIGS. 4 and 5) G-4 Modification H Effect of the invention A Industrial field of application The present invention is a cassette. The present invention relates to a signal transmission device for transmitting an information signal from an external signal source to an information reproducing device having a tape player section.

B Outline of the Invention The present invention provides a tape cassette type signal transmitting device for transmitting an information signal from an external signal source such as a disc player to an information reproducing device such as an in-vehicle audio device having a cassette tape player portion. A magnetic head portion for signal transmission is arranged in the formed case with its magnetic gap forming portion facing the outside of the case, one end side is connected to the magnetic head portion for signal transmission or a signal supply portion for it, and the other end portion A signal transmission lead wire that is led out of the case so that the side is connected to an external signal source is provided, and a direction in which the signal transmission lead wire is pulled out from the case to the outside can be set at the peripheral portion of the case. By adopting a configuration in which the lead wire lead-out setting section is formed, it can be mounted in the tape cassette mounting section of the cassette tape player section. The information signal from the external signal source can be transmitted to the information reproducing device from the magnetic head portion for signal transmission through the magnetic head portion provided in the cassette tape player portion by an extremely easy operation of only the tape cassette. The present invention can be mounted on various cassette tape player units which have different modes for mounting.

C Conventional Technology In a normal stationary audio device, an external input terminal is provided on its front panel portion, etc., and an audio signal from an external audio signal source is supplied through the external input terminal so that the external audio signal source In many cases, it is possible to perform voice reproduction based on the audio signal of. On the other hand, in a car audio device, which is commonly referred to as a car stereo device or the like, a vehicle-mounted audio device equipped with a cassette tape player unit is required to be downsized as a whole, and the size of the front panel unit is limited. Therefore, it is generally assumed that an external input terminal for receiving an audio signal from the external audio signal source is not provided, and therefore it is generally impossible to reproduce sound based on the audio signal from the external audio signal source. Is.

Under such circumstances, for example, with the spread of portable compact disc players, it is desired to use the portable compact disc player of the user in the vehicle and enjoy sound reproduction from the compact disc. Therefore, it is desired that even in-vehicle audio equipment, audio reproduction based on an audio signal from an external audio signal source such as a portable compact disc player can be performed. There is. Therefore, conventionally, by modifying the vehicle audio equipment, the transmission line of the audio signal from the external audio signal source can be connected, or the vehicle audio equipment has a tuner section. In this case, the audio signal from the external audio signal source is sent as a carrier signal using a predetermined transmitter so that it can be received by the tuner section of the vehicle audio device, and the external audio signal is transmitted by the vehicle audio device. It has been proposed to enable audio reproduction based on the audio signal from the source.

D Problem to be Solved by the Invention However, as described above, in order to enable the audio reproduction based on the audio signal from the external audio signal source by the in-vehicle audio device,
Modifying an on-vehicle audio device requires specialized knowledge and various parts, which is inconvenient for a user of the on-vehicle audio device to easily perform. In addition, when the vehicle audio device has a tuner unit, an attempt is made to use a transmitter that sends an audio signal from an external audio signal source as a carrier signal that can be received by the vehicle audio device tuner unit. In this case, there is a problem that the use of radio waves may be involved, and the use of radio waves may be prohibited due to restrictions such as laws and regulations for controlling the use of radio waves in each country.

In view of such a point, the present invention is directed to an information reproducing apparatus including a cassette tape player section not provided with an external input terminal, such as an in-vehicle audio apparatus including a normal cassette tape player section. Also, there is provided a signal transmission device capable of transmitting an information signal from an external information signal source by an extremely easy operation without being modified and further without being related to a problem regarding use of radio waves. The purpose is to do.

E Means for Solving the Problems In order to achieve the above-mentioned object, the signal transmission device according to the present invention has a case formed in a tape cassette type, in which a pair of reel shaft holes provided in the case are provided. A pair of reel hubs, which are rotatable at corresponding positions and are interconnected by a rotation transmitting means, and a signal transmitting magnetic head portion for exposing the magnetic gap forming portion from the side surface portion of the case to the outside thereof are arranged. A signal transmission lead wire, which is led to the outside of the case so that one end side is connected to the signal transmitting magnetic head section or a signal supply section for the magnetic head section and the other end side is connected to the signal source, is further arranged. And a lead wire restricting portion provided on the periphery of the signal transmission lead wire, and the signal transmitting lead wire is selectively passed through the notch portion under the position restriction by the lead wire restricting portion. As drawn from the case to the outside Te constituted by lead wire outlet setting unit is provided to set the pull-out direction from the case of the signal transmission leads can be changed.

In the signal transmission device according to the present invention configured as described above, the other end of the signal transmission lead wire is connected to the information signal output end of the external information signal source by, for example, inserting a plug, and the tape is connected. A cassette-shaped case is provided in a tape cassette mounting portion of a cassette tape player portion of an information reproducing apparatus having a cassette tape player portion, and a reel shaft hole provided therein is provided in the cassette tape player portion. It is used by being attached by engaging it with a rotating reel shaft. When the case is mounted in the tape cassette mounting section of the cassette tape player section, the magnetic head for signal transmission has its magnetic gap forming section in the magnetic gap forming section of the magnetic head section of the cassette tape player section. It is made to abut.

In such a state of use, each of the pair of reel hubs interconnected and arranged by the rotation transmission means in the case,
It is rotated by the rotating reel shaft of the cassette tape player unit that engages with the reel shaft hole, whereby the cassette tape player unit can maintain its operating state without imitating the operating state of the automatic shutoff mechanism. To be done. Then, the information signal from the external information signal source is
Through the signal transmission lead wire, or after passing through the signal transmission lead wire, is supplied to the signal transmission magnetic head portion through the signal supply portion for the signal transmission magnetic head portion, and further, from the signal transmission magnetic head portion, It is transmitted to the magnetic head portion of the cassette tape player portion with which it abuts. As a result, in the cassette tape player section,
The information signal from the external information signal source is processed by the magnetic head unit in the same manner as a normal information signal read from the magnetic tape, and the information reproducing apparatus performs information reproduction based on the information signal from the external information signal source.

In this manner, the information signal from the external information signal source is not accompanied by any modification to the information reproducing apparatus having the cassette tape player unit, and the problem regarding the use of radio waves is not involved. , Will be transmitted under extremely easy operation. Further, the lead wire lead-out setting section provided in the case appropriately changes the direction in which the signal transmission lead wire is drawn out of the case according to the mounting mode of the case to the tape cassette mounting section of the cassette tape player section. As a result, the case can be attached to various cassette tape player units that have different aspects regarding the attachment of the tape cassette.

G Example G-1 Structure (FIG. 1) FIG. 1 shows an example of a signal transmission device according to the present invention. In this example, an audio signal from an external audio signal source is transmitted to an in-vehicle audio device equipped with a cassette tape player unit in which a compact tape cassette is mounted, and the compact tape cassette type is formed. It has a case 10. The case 10 has a pair of reel shaft holes 12 penetrating the opposed flat plate-shaped portions 10a and 10b.
a and 12b are provided, and a raised portion formed on one side edge of each of the opposed flat plate-shaped portions 10a and 10b (the one formed on the opposed flat plate-shaped portion 10b is not shown in the drawing) 14 An opening 16 is formed in the side surface portion on the side.

Inside the case 10, a pair of reel hubs 18a and 18b are rotatably arranged at positions corresponding to the reel shaft holes 12a and 12b, respectively. These reel hubs 18a and 18b are interconnected by, for example, a rotation transmitting means formed by a toothed belt 20, and when one of them is driven to rotate,
The rotation is transmitted to the other, and the other is also rotated. Further, at the position sandwiched by the central portions of the raised portions 14 formed in the opposed flat plate-shaped portions 10a and 10b inside the case 10, the magnetic head portion 22 for signal supply is provided.
Are arranged. The signal supplying magnetic head portion 22 has its magnetic gap forming portion 22a exposed to the outside of the case 10 through the opening 16 formed in the side surface of the case 10, and the magnetic gap forming portion 22a side. The back plate 22b on the side opposite to the support plate 24 fixed to the case 10
A spring 26 is provided between the magnetic head 22 and the signal supplying magnetic head portion 22, and the entire magnetic head portion 22 for signal supply is displaced from the magnetic gap forming portion 22a side to the back surface portion 22b side against the elastic force of the spring 26, and The position can be restored by the elastic force of the spring 26 from the back surface portion 22b side to the magnetic gap forming portion 22a side.

Furthermore, inside the case 10, there is a magnetic head unit for signal supply.
A sound quality compensating circuit section 28 is provided which is connected to 22 and forms a signal supplying section for the signal supplying magnetic head section 22. The signal transmission lead wire 30, one end of which is connected to the sound quality compensation circuit section 28, is opened from the inside of the case 10.
The side surface portion 10c corresponding to the side surface portion on which the 16 is formed is extended to the outside of the case 10, and the other end of the signal transmission lead wire 30 led out of the case 10 has a plug 30a. Is attached.

Side edges on the side surface portion 10c side through which the signal transmission lead wire 30 penetrates in each of the opposed flat plate-shaped portions 10a and 10b of the case 10 are to form the overhang portions 31a and 32b. And
Notches 34a, 34b, 34c and 34d are formed in the overhanging portion 32a so as to be separated from each other, and correspondingly, the overhanging portion 32a is formed.
Notches 36a, 36b, 36c and 36d are formed in b in a mutually separated manner. In addition, notches 34a to 34d are formed in the overhanging portion 32a.
Ribs 38a, 38b and 3 protruding from the inner surface between each of the
8c is provided, while the overhanging portion 32b is provided with notches 36a to 36d.
Ribs 40a, 40b and 4 protruding from the inner surface between each of the
0c is provided, and the ribs 38a, 38b and 38c and the ribs 40a, 40b and 40c correspond to each other at a slight interval.

In this way, ribs 38a, 38 provided on the overhanging portions 32a and 32b are provided.
b and 38c and ribs 40a, 40b and 40c, respectively, which face each other, form a lead wire restricting portion for the signal transmission lead wire 30, and these ribs 38a, 38b and 38c and ribs 40a, 40b and 40c. And the notch 34a.
Each of ~ 34d and 36a ~ 36d forms a lead wire lead-out setting portion 42 for setting the position and direction of the signal transmission lead wire 30 penetrating the side surface portion 10c from the case 10 to the outside so as to be changeable. Has become. That is, the signal transmission lead wire 30 extending from the inside of the case 10 through the side surface portion 10c is
The position in the direction along the side face portion 10c is regulated by the pair of ribs 38a and 40a facing each other, the pair of 38b and 40b, or the pair of 38c and 40c, or in addition, the notch portion 34a to Overhang 32 through any of 34d and 36a-36d
It is directed toward the outer surface side of a or 32b and is pulled out from the case 10 to the outside. Note that, in FIG. 1, the signal transmission lead wire 30 extending from the inside of the case 10 through the side surface portion 10c is formed by the set of the ribs 38a and 40a facing each other forming the lead wire lead-out setting portion 42. The state in which the position to be drawn from the to the outside is set is shown.

G-2 One Example of Usage State (FIGS. 2 and 3) FIG. 2 shows an audio signal obtained from a portable disc player as an example of the signal transmission device according to the present invention configured as described above. Is used for transmitting to the cassette tape player unit provided in the vehicle audio equipment. In such a usage state, the plug 30a attached to the signal transmission lead wire 30 is inserted into the jack 51 forming the output terminal provided in the portable disk player 50, while the case 10 is the cassette tape player. It is mounted in the tape cassette mounting portion of the portion 52.

When the case 10 is mounted in the tape cassette mounting portion of the cassette tape player unit 52, the case 10 is attached to the cassette insertion slot provided in the cassette tape player unit 52.
The tape 53 is inserted into the cassette tape player unit 52 in the direction indicated by the arrow A in FIG. 2, and then automatically lowered inside the cassette tape player unit 52 to mount a predetermined tape cassette. It is attached to the department. At this time, the signal transmission lead wire 30 is extended from the inside of the case 10 to form, for example, a lead wire lead-out setting portion 42.
It is pulled out to the outer surface side of the overhanging portion 32a, that is, the upper side of the case 10 through the cutout portion 34a provided in the 32a, and further, from the inside of the cassette tape player portion 52 to the cassette insertion opening 53.
Through the cassette tape player section 52.

When the case 10 is mounted in the tape cassette mounting portion of the cassette tape player unit 52, the rotary reel shafts 54a and 54b provided in the tape cassette mounting portion are reel shaft holes 12a and 12b formed in the case 10. Of the cassette tape player section 5 and the reel hubs 18a and 18b arranged in the case 10 are engaged with the reel hubs 18a and 18b, respectively.
It is brought into contact with the magnetic gap forming portion of the magnetic head portion 55 provided in 2. The magnetic head unit 55 provided with the signal supplying magnetic head unit 22 in the cassette tape player unit 52.
When it is brought into contact with the magnetic gap forming part of
For example, when the magnetic head unit 55 is of a 4-channel type, as shown in FIG.
22 has four magnetic heads 22L, 22R, 22R 'and 22L' built therein. These magnetic heads 22L, 22R, 22R 'and 22L
Four magnetic heads 55 in which L'is built in the magnetic head unit 55
L, 55R, 55R 'and 55L' are brought into contact with each other.

The output ends of the equalizer circuit 28L in the sound quality compensation circuit unit 28 are connected to the magnetic heads 22L and 22L ′, and the output ends of the equalizer circuit 28R in the sound quality compensation circuit unit 28 are connected to the magnetic heads 22R and 22R ′. Are connected. Then, for example, the stereo right channel signal from the disc player 50 transmitted by the right channel signal transmission lead 30R in the signal transmission lead 30 is supplied to the magnetic heads 22R and 22R ′ through the equalizer circuit 28R, and the signal transmission is also performed. Lead wire 30
The stereo left channel signal from the disc player 50 transmitted by the left channel signal transmission lead 30L in the magnetic heads 22L and 22L 'is transmitted through the equalizer circuit 28L.
Is supplied to.

In this way, the case 10 is the cassette tape player unit 52.
When the cassette tape player unit 52 is put into operation in the state where it is mounted in the tape cassette mounting unit, the reel hubs 18a and 18b interconnected by the toothed belt 20 in the case 10 are rotated. Reel shaft 54
The cassette tape player unit 52 is rotated based on the drive by a or 54b, so that the cassette tape player unit 52 maintains the operating state without the operating state of the automatic shutoff mechanism. Then, the stereo right channel signal from the disk player 50 supplied to the magnetic heads 22R and 22R 'is transmitted to the magnetic heads 55R and 55R', and also supplied to the magnetic heads 22L and 22L '. The stereo left-channel signal from is transmitted to the magnetic heads 55L and 55L '.

The stereo right channel signal transmitted to the magnetic heads 55R and 55R 'is derived to the terminals 56R and 56R', and the stereo left channel signal transmitted to the magnetic heads 55L and 55L 'is derived to the terminals 56L and 56L'. These stereo right channel signal and stereo left channel signal are transferred to the magnetic head unit 55 in the cassette tape player unit 52.
Is processed in the same way as a normal audio signal read from a magnetic tape, resulting in a disc player 50
The audio is reproduced based on the audio signal from.

G-3 Another Example of Usage State (FIGS. 4 and 5) FIGS. 4 and 5 show an example of the signal transmission device according to the present invention shown in FIG. 1, respectively, in FIG. The cassette tape player section 52 shown is in a state used for transmitting an information signal to a cassette tape player section having a different tape cassette mounting mode.

In the example shown in FIG. 4, the case 10 is inside the cassette tape player unit 60, and the side where the signal transmission lead wire 30 of the case 10 penetrates the side face portion 10c is the front, and the cassette tape. Inserted in the direction shown by arrow B in FIG. 4 from the cassette insertion opening provided in the player section 60. Then, the case 10 is mounted in a tape cassette mounting portion provided inside the cassette tape player unit 60, and the magnetic gap forming portion 22a of the magnetic head portion 22 for signal supply arranged in the case 10 is a cassette tape.
The magnetic head portion 61 of the player portion 60 is brought into contact with the magnetic gap forming portion of the magnetic head portion 61.

At this time, the signal transmission lead wire 30 led out from the inside of the case 10 through the side surface portion 10c of the case 10 has the ribs 38 provided on the overhang portions 32a and 32b forming the lead wire lead-out setting portion 42.
The position is regulated by the group of a and 40a, the group of 38b and 40b, and the group of 38c and 40c, and is pulled out from the side surface portion side of the case 10 on the side of the cutouts 34d and 36d. In this case, the lead wire lead setting unit 42 allows the signal transmission lead wire 30 to be pulled out from the case 10, so that the case 10 can be used as a tape cassette mounting portion in the cassette tape player unit 60. On the other hand, it can be mounted in the manner as described above.

In the example shown in FIG. 5, the case 10 has an opening 16 inside the cassette tape player unit 62, and the magnetic gap forming portion 22a of the signal supplying magnetic head unit 22 faces the outside.
With the side surface of the case 10 in which the groove is formed facing forward, it is inserted in the direction indicated by the arrow C in FIG. 5 from the cassette insertion opening provided in the cassette tape player unit 62. Then, the case 10 is the cassette tape player unit 62.
It is mounted in the tape cassette mounting part provided inside the
The magnetic gap forming portion 22a of the signal supplying magnetic head portion 22 arranged in the case 10 is formed by the cassette tape player portion 6
The second magnetic head portion 63 is brought into contact with the magnetic gap forming portion.

At this time, the signal transmission lead wire 30 led out from the inside of the case 10 through the side surface portion 10c of the case 10 has the ribs 38 provided on the overhang portions 32a and 32b forming the lead wire lead-out setting portion 42.
The position is restricted by the pair of a and 40a, and the notches 34b and 36b
Drawn from the position. Also in this case, since the lead wire lead-out setting unit 42 allows the signal transmission lead wire 30 to be pulled out from the case 10, the case 10 is attached to the tape cassette in the cassette tape player unit 62. The parts can be mounted in the manner as described above.

G-4 Modified Example In the example of the signal transmission device according to the present invention shown in FIG. 1, the sound quality compensation circuit part 28 for the signal supplying magnetic head part 22 is arranged in the case 10. It is not always necessary that the compensation circuit unit 28 is arranged in the case 10, and the sound quality compensation circuit unit 28 is removed from the case 10.
One end of the signal transmission lead wire 30 may be directly connected to the signal supplying magnetic head portion 22.

Further, the rotation transmitting means for interconnecting the reel hubs 18a and 18b in the case 10 is not only constituted by the toothed belt 20 as shown in FIG. 1, but also constituted by other means such as a gear train. May be done.

H Effect of the Invention As is apparent from the above description, according to the signal transmission device of the present invention, a tape cassette type tape cassette mounting portion is provided in the cassette tape player portion of the information reproducing apparatus having the cassette tape player portion. The cassette tape player section is provided by an extremely simple operation in which the case formed in the above is mounted and the end of the signal transmission lead wire pulled out from the case is connected to the output end of the external information signal source. Even if the information playback device does not have an external input terminal, without modification,
In addition, the information signal from the external information signal source can be transmitted without being related to the problem of using the radio wave.

Further, the case is provided with a pair of reel shaft holes, and is provided with a pair of reel hubs rotatably arranged at positions corresponding to the pair of reel shaft holes in the case and interconnected by a rotation transmission means. As a result, it is possible to avoid a situation where the cassette tape player unit operates the auto shut-off mechanism or the like to be in the non-reproducing operation state. Furthermore, the direction in which the signal transmission lead wire is pulled out from the case can be changed, assuming that the signal transmission lead wire is pulled out from the inside of the case through the notch while the position of the signal transmission lead wire is selectively restricted by the lead wire regulation portion. By providing the lead wire lead-out setting section for setting the case, it is possible to obtain an advantage that the case can be properly attached to various cassette tape player sections that have different aspects regarding the attachment of the tape cassette. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a signal transmission device according to the present invention, and FIGS. 2 and 3 are perspective views and schematic connection diagrams used for explaining an example of a usage state of the example shown in FIG. 4 and 5 are plan views provided for explaining another example of the usage state of the example shown in FIG. 1, respectively. In the figure, 10 is a case, 18a and 18b are reel hubs, 20 is a toothed belt, 22 is a magnetic head for signal supply, 30 is a signal transmission lead wire, 42 is a lead wire lead setting section, and 52, 60 and 62 are cassettes. The tape player section, 55, 61 and 63 are magnetic head sections.

Claims (1)

[Claims] 1. A tape cassette type case and a pair of reel shaft holes provided in the case. The case is rotatably disposed in the inside of the case and is interconnected by a rotation transmission means. A pair of reel hubs, a signal transmitting magnetic head portion disposed in the case and exposing a magnetic gap forming portion from the side surface portion of the case to the outside thereof, and one end portion side of the signal transmitting magnetic head portion or the signal transmitting magnetic head portion. A signal transmission lead wire that is connected to a signal supply portion for the signal transmitting magnetic head portion and is led out of the case so that the other end side is connected to a signal source, and a cutout portion provided in the peripheral portion of the case. And a lead wire restricting portion, and the signal transmission lead wire is removed from the inside of the case through the cutout portion while the position restriction by the lead wire restricting portion is selectively performed. And a lead wire lead-out setting unit that sets the lead-out direction of the signal transmission lead wire from the case to be changeable.