JPH0917173A - Acoustic equipment - Google Patents

Abstract

PURPOSE: To prevent a read error due to vibration of the lens of an optical pickup or a disk itself by air vibration from speakers, from occurring in the case where the speakers are arranged in a common cabinet along with a disk player. CONSTITUTION: A screening wall 21 is provided around a mounting substrate 20 of a disk player with a frame body 52 which is released outward by an opening 53. At the same time, a bottom opening 22 of the screening wall 21 is blocked by a circuit substrate 23 and a disk player 14 is housed inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device, and more particularly to an audio device in which a speaker and a disk player are housed in a common cabinet.

[0002]

2. Description of the Related Art A conventional cassette type tape recorder with a radio is constructed as shown in FIG. 7, for example. That is, the connecting means 2 is provided on each of the left and right sides of the main body cabinet 1.
The speaker box 3 is detachably attached via the. Then, in a main body cabinet 1 which is independent of the speaker box, a disk player 4 for reproducing a disk-shaped recording medium is arranged above the main body cabinet 1, and a tape deck composed of a pair of left and right tape recorders is provided below the disk player 4. I am trying to store 5.

[0003]

Such a conventional cassette type tape recorder with a radio is a main body cabinet 1.
Besides, a pair of left and right speaker boxes 3 are required, and these speaker boxes 3 must be detachably joined by the joining means 2, resulting in an increase in cost and miniaturization of a cassette tape recorder with a radio. There was a problem of hindering.

Therefore, for example, when the left and right speakers, the disk player and the tape deck are housed in a common cabinet, air flow occurs around the optical pickup of the disk player due to the air vibration caused by the driving of the speakers. It will vibrate. Such vibration causes an error in reading the disk-shaped recording medium. Such an error causes a break in the reproduced sound.

The present invention has been made in view of the above problems, and when the speaker is housed in a common cabinet together with the disk player, there is an error in reading the disk-shaped recording medium due to air vibration of the speaker. It is an object of the present invention to provide an audio device that prevents accompanying sound interruption.

[0006]

DISCLOSURE OF THE INVENTION The present invention relates to an audio equipment in which a speaker is housed in a common cabinet together with a disk player, and a disk is provided in a space which is partitioned from other parts of the cabinet by partition means. The player is arranged.

The partition means is composed of a partition wall connected to a base for supporting the disc player, and a circuit board is mounted so as to cover the bottom opening of the partition wall, and the disc player is mounted on the circuit board. Electronic circuits may be formed. Further, the input terminal and the output terminal for connecting the electronic circuit of the disc player to an external circuit may be provided on the circuit board so as to be located outside the partition means.

The partition means is composed of a partition wall connected to a base body for supporting the disc player, and is mounted on the cabinet at a mounting frame portion of the base body, and an opening is formed inside the mounting frame. A space inside the partition wall accommodating the disc player may be opened to the outside by the opening, and a lid may be attached to the opening so as to be openable and closable.

[0009]

Therefore, the air vibration caused by the driving of the speaker housed in the cabinet is blocked by the partitioning means, and the disk player disposed in the partitioning means is prevented from being affected by the air vibration.

FIG. 1 shows a cassette type tape recorder with a radio according to an embodiment of the present invention. The cassette type tape recorder with a radio has a common cabinet 10. Speakers 11 and 12 are attached to the left and right of the cabinet 10 so as to face forward. A handle 13 is attached to the upper part of the cabinet 10 so that the handle 13 can be carried around. A disc player 14 is attached to a position above the center of the cabinet 10 and below the handle 13.

Next, the mounting structure of the disc player 14 will be described. The disc player 14 is mounted on a synthetic resin substrate 20 such as ABS resin shown in FIGS. A partition wall 21 is continuously provided in a skirt shape on the outer peripheral portion of the base body 20, and a lower opening 22 of the partition wall 21 is closed by a circuit board 23. An electronic circuit of the disc player 14 is formed on the circuit board 23.

As shown in FIG. 4, a plurality of, for example, four support legs 27 are provided so as to project downward on the bottom of the synthetic resin base 20, and the outer peripheral portions of these support legs 27 are provided. The rubber boot 28 shown in FIGS. 5 and 6 is attached to the. The rubber boot 28 has a flange 30 of a tapping screw 29 whose lower end portion is screwed into the support leg 27.
The lower end can be received by. The notches 32 formed at the four corners of the chassis 32 are respectively engaged with the circumferential groove 31 formed in the rubber boot 28. The chassis 32 is synthesized through the rubber boot 28. It is arranged on the lower surface of the resin base body 20 and in the space surrounded by the partition wall 21 and the circuit board 23.

A turntable driving motor 37 and a pickup moving motor 38 are respectively supported on the chassis 32. A turntable 40 is attached to the upper end of a rotary shaft 39 of the turntable drive motor 37, and a truncated cone-shaped boss 41 is fixed to the upper end of the turntable 40 at the center thereof.

On the other hand, another motor 38 linearly moves the optical pickup 44 in the radial direction of the turntable 40. A cover 45 is attached from the outer peripheral side of the turntable 40 so as to cover the movement trajectory of the optical pickup 44, and the optical pickup 44 is arranged so as to face the opening 46 of the cover 45.

When the chassis 32 is attached to the support leg 27 via the rubber boot 28 as described above, the turntable 40 and the optical pickup 44 are provided in the opening 49 provided in the recess 48 of the synthetic resin substrate 20. Cover 4
5 and 5 come to face each other. The periphery of the recess 48 is a mounting frame 52, and the mounting frame 52 is engaged with the upper opening of the cabinet 10.

The opening 53 of the mounting frame 52 of the synthetic resin base 20 is opened and closed by an opening / closing lid 54. That is, the opening / closing lid 54 is rotatably supported by the hinge portions 56 on both sides of the mounting frame 52, and the holding disc 55 is arranged below the opening / closing lid 54. Turntable 4
The disk-shaped recording medium placed on the disk 0 is pressed.

A circuit board 58 is mounted on the lower surfaces of a pair of motors 37, 38 mounted on the lower surface of the chassis 32. The circuit on the circuit board 58 is opened at the bottom of the partition wall 21 via a flexible board. It is connected to a connector 59 provided inside the partition wall 21 inside the circuit board 23 that closes the wall 22.
The optical pickup 44 is a connector 60 provided on the circuit board 23 inside the partition wall 21.
Is connected to On the other hand, another connector 61 is mounted on the circuit board 23 on the outer side of the partition wall 21, and this connector 61 constitutes an input terminal and an output terminal for connection with an external circuit. ing.

In the above structure, the disk-shaped recording medium 65 is placed on the turntable 40 and the motor 3
When the turntable 40 is driven by 7 and the optical pickup 44 is moved by the motor 38 in the axial direction of the turntable 40, a signal is read from the disc-shaped recording medium 65 by the optical pickup 44. The read signal is processed by a circuit on the circuit board 23, and is further passed through an external circuit to the speaker 1
1 and 12, respectively. Therefore, the audio signal is reproduced by the speakers 11 and 12.

As described above, the cassette type tape recorder with a radio according to the present embodiment basically has a format cabinet 10 which constitutes the entire cabinet, and a player cabinet 20 which constitutes the mounting base of the disc player 14. Is equipped with. And the left and right speakers 11,
The speakers 12 are mounted so as to face the insides of the left and right openings of the cabinet 10, respectively.
The diaphragms 1 and 12 function so as to close the opening of the cabinet 10. That is, the diaphragms of the speakers 11 and 12 are present between the inside and the outside of the opening of the cabinet 10 so as to block the air vibration between the inside and the outside.

Therefore, when the speakers 11 and 12 are driven,
Air vibration is generated inside the cabinet 10. The disk player cabinet including the synthetic resin substrate 20 needs an opening around the optical pickup 44, particularly near the lens. Therefore, when the synthetic resin substrate 20 does not have a partition structure, the opening 49 of the recess 48 of the substrate 20 or the opening 46 of the cover 45 serves as a passageway for air. The air passing through such a path causes the optical pickup 44 to vibrate.

Therefore, the partition wall 21 of the synthetic resin substrate 20
The circuit board 23 that covers the lower opening 22 of the partition wall 21 allows the disc player 14 to be arranged in a portion separated from the space in which the speakers 11 and 12 are housed in the cabinet. Therefore, it is possible to prevent the air flow caused by the driving of the speakers 11 and 12 particularly in the lens portion of the optical pickup 44. Therefore, the optical pickup 44 does not vibrate due to the flow of air, and the disc-shaped recording medium 65 does not exist.
It is possible to prevent skipping of sound without causing a reading error. The optical pickup 44 of the cover 45
It is also possible to cover the portion of the opening 46 facing with the transparent plate with a transparent plate so that air does not flow in the opening 46.

Further, in this embodiment, the lower opening of the partition wall 21 is closed by the circuit board 23, and the motors 37, 38 and the optical pickup 44 on the chassis 32 are provided on the circuit board 23 inside the partition wall 21. The connectors 59 and 60 are connected. Moreover, a connector for connecting to an external circuit is arranged on the circuit board 23 and outside the partition wall 21. Therefore, it is not necessary to pass the signal line across the partition means in the region surrounded by the partition wall 21 and the circuit board 23, and high hermeticity can be obtained. This allows the optical pickup 44 to read more accurately.

As described above, in the cassette type tape recorder with a radio of the present embodiment, the partition wall under the synthetic resin substrate 20 on which the disk player 14 is mounted in order to shield the speakers 11 and 12 and the disk player 14 from each other. The lower opening of 21 is closed by the circuit board 23, and it is not necessary to insert the wire connecting the optical pickup 44 and the circuit board 23 inside and outside of the partition wall 21 and the circuit board 23. Can be increased.

As a result, the reading error of the disc-shaped recording medium 65 is reduced, and the sound break is reduced. Actually, the sound pressure level was improved by 4 to 5 dB. In addition, the size of the entire set can be reduced. In addition, the disk player 14 uses the partition wall 2 of the synthetic resin substrate 20.
Since the speaker 1 and the circuit board 23 are closed, it is possible to use loudspeakers 11 and 12 having a large output. Further, since only the portion for housing the disc player 14 is shielded by the partition, the shielding range is reduced and the degree of freedom in design is improved.

[0025]

As described above, according to the present invention, the disc player is arranged in the space partitioned by the partition means from the other part of the space in the cabinet.

Therefore, the partition means prevents the disk player from being affected by the air vibration of the speaker, thereby preventing the vibration of the reading portion of the disk player and preventing the malfunction at the time of reading.

The partition means is composed of a partition wall connected to a base for supporting the disc player, and a circuit board is attached so as to cover a bottom opening of the partition wall, and the disc player is mounted on the circuit board. According to the configuration in which the electronic circuit is formed, the partition wall and the circuit board constitute the partition means, and the air vibration of the speaker can be blocked by such partition means.

According to the structure in which the input terminal and the output terminal for connecting the electronic circuit of the disc player to the external circuit are provided on the circuit board so as to be located outside the partition means, the wiring is provided inside and outside the partition means. There is no need to do this, the airtightness is higher, and the air vibrations of the speaker are more completely isolated.

The partition means is composed of a partition wall connected to a base for supporting the disc player, and is mounted on the cabinet at the mounting frame portion of the base, and an opening is formed inside the mounting frame. With this structure, the space inside the partition wall accommodating the disc player is opened to the outside, and according to the structure in which the lid state is attached to this opening so as to be openable and closable, the partition wall separates from the space inside the cabinet. In addition, the disc player is placed in the space that is open to the outside, and the air vibration of the speaker placed in the cabinet may affect the disc player through the space in the cabinet. As a result, it is possible to prevent malfunctions when reading the disc player.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a cassette type tape recorder with a radio.

FIG. 2 is a perspective view of a main part showing a structure of a base body of the disc player.

FIG. 3 is an exploded perspective view showing the mounting of the disc player.

FIG. 4 is a vertical cross-sectional view showing the mounting of the disc player.

FIG. 5 is an exploded perspective view showing a structure for supporting a chassis.

FIG. 6 is a vertical cross-sectional view showing a structure for mounting a chassis.

FIG. 7 is a front view of a conventional cassette type tape recorder with a radio.

[Explanation of symbols]

 10 Cabinet 11 Speaker (Left) 12 Speaker (Right) 13 Handle 14 Disc Player 20 Synthetic Resin Substrate 21 Partition Wall 22 Lower Opening 23 Circuit Board 27 Support Leg 28 Rubber Boot 29 Tapping Screw 30 Flange 31 Circumferential Groove 32 Chassis 33 Notch 37 Motor (for driving turntable) 38 Motor (for moving pickup) 39 Rotating shaft 40 Turntable 41 Frustum-shaped boss 44 Optical pickup 45 Cover 46 Opening 48 Recess 49 Opening 52 Mounting frame 53 Opening 54 Opening / closing lid 55 Pressing disk 56 Hinge portion 58 Circuit board 59 Connector 60 Connector 61 Connector 65 Disc-shaped recording medium

Claims (4)

[Claims] 1. An audio device in which a speaker is housed in a common cabinet together with a disk player, wherein the disk player is arranged in a space which is partitioned from another part of the space in the cabinet by partition means. Characteristic audio equipment. 2. The partition means comprises a partition wall connected to a base for supporting the disc player, and a circuit board is attached to cover a bottom opening of the partition wall, and the partition board is mounted on the circuit board. The audio device according to claim 1, wherein an electronic circuit of the disc player is formed on the audio device. 3. An input terminal and an output terminal for connecting an electronic circuit of the disc player to an external circuit are provided on the circuit board so as to be located outside the partition means. The audio device according to 2. 4. The partition means is composed of a partition wall that is connected to a base body that supports the disc player, and is mounted on the cabinet at a mounting frame portion of the base body, and further, inside the mounting frame. An opening is formed in the opening, a space inside the partition wall accommodating the disc player is opened to the outside by the opening, and a lid is attached to the opening so as to be openable and closable. 1. The audio device according to 1.