JPH08163680A - Audio equipment - Google Patents

Abstract

PURPOSE: To stabilize the reproduction of a reproducing device by preventing a recording medium from fluctuating as scarsely receiving the influence of sound pressure generated in a built-in loudspeaker and sound jump phenomenon from occurring in the reproduction by incorporating the reproducing device by housing and holding in a box-shape chassis formed in sealed structure for a loudspeaker housing part. CONSTITUTION: A CD player unit 3 and a speaker adjustment operating mechanism are housed in a speaker cabinet 1 successively to the housing part of the loudspeaker 2. The loudspeaker 2 is mounted on the front side of the speaker housing part 1a of the speaker cabinet 1, and the CD player unit 3 and the speaker adjustment operating mechanism are housed in an equipment housing part 1b facing with a rear face side. An opening 1c is formed at a part confronting with the CD player unit 3 on the rear face side confronting with the equipment housing part 1b, and a panel 5 for CD player is mounted. The CD player unit 3 is housed and held in the chassis 1 with sealed structure, and housed in the equipment housing part 1b of the speaker cabinet 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for a recording medium, for example, an audio equipment in which a disc player unit and a speaker are built in the same cabinet.

[0002]

2. Description of the Related Art Conventionally, in this type of audio equipment, a disk player unit is directly attached to a cabinet in which a speaker is built, and a partition wall is formed between the speaker housing portion and the speaker housing portion or the speaker housing portion has a separated structure. The speaker is designed to be less susceptible to the vibration and sound pressure generated in the speaker.

[0003]

When the partition wall is formed between the speaker housing portion and the disc player unit housing portion in the cabinet as described above, the volume of the speaker housing portion is reduced, which is inconvenient for reproducing the bass range of the speaker. In the case of a speaker with a large output, the partition wall vibrates, and this also transmits to the disc player unit, and the sound pressure also affects it. There was a problem that jumps occurred and playback could not be performed stably.

Further, if the speaker accommodating portion has a separate structure, these drawbacks can be solved, but there is a disadvantage that the cost becomes high.

The present invention has been made in view of the above points, and even if a reproducing apparatus for a recording medium is built in a speaker cabinet, stable reproduction of the recording medium is performed without being affected by the sound pressure of the speaker. It is an object of the present invention to provide an audio device that enables the cost reduction as well as the above.

[0006]

In order to achieve the above-mentioned object, an audio equipment according to the present invention comprises a reproducing apparatus for a recording medium in a speaker cabinet, and a box-shaped chassis having a hermetically sealed structure with respect to a speaker housing. It is configured so that it is stored and held and built in. The reproducing device is preferably housed and held in the box-shaped chassis via the mounting frame and the insulator.

[0007]

As described above, by storing and holding the recording medium reproducing device in the box-shaped chassis having the closed structure, the reproduction of the recording medium is not affected by the sound pressure generated in the built-in speaker. It can be performed stably without causing it.

Further, since the reproducing device is housed and held in the box-shaped chassis via the mounting frame and the insulator, transmission of vibration is prevented and more stable reproduction can be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an audio equipment according to the present invention will be described below with reference to the drawings, in which a compact disk player (hereinafter referred to as a CD player) as a recording medium reproducing apparatus is built in a speaker cabinet. .

In the figure, 1 is a speaker cabinet,
The CD player unit 3 is continuously connected to the housing of the speaker 2.
The speaker adjusting operation mechanism 4 is housed. That is, the speaker 2 is attached to the front side of the speaker housing 1a of the speaker cabinet 1, and the CD player unit 3 and the speaker adjusting operation mechanism 4 are housed in the device housing 1b toward the rear side. Part 1
An opening 1c is formed in a portion corresponding to the CD player unit 3 on the rear surface side corresponding to b, and a panel 5 for a CD player is attached to the portion, and a speaker adjustment operation is performed in a portion corresponding to the speaker adjustment operation mechanism 4. A knob 6, a microphone jack 7, etc. are arranged.

The CD player panel 5 is formed with an opening 8 through which the disc tray 3a of the CD player unit 3 is inserted, and adjacent to the opening 8 (upper side in the illustrated example) is a display liquid crystal for the CD player. A display 9 and an operation unit 10 are provided.

In the present example, the CD player unit 3 is housed and held in the box-shaped chassis 11 having a hermetically sealed structure, and is housed in the device housing portion 1b of the speaker cabinet 1.

The chassis 11 is, as shown in FIG.
A substrate 12 in which both side surface portions 12b and 12c are integrally formed with respect to the bottom surface portion 12a, and a bottom surface portion 12 of the substrate 12
a and a top plate 13 that is fixed between both side surface portions 12b and 12c so as to face a at a predetermined interval;
And a closing plate 14 that closes between the inner end portion (front end portion in the illustrated example) of the top plate 13.

Both side surface portions 12b and 12c of the substrate 12 are formed so as to be slanted toward the inner end (front end) direction, and projecting edge portions 12b ₁ and 12c ₁ are formed in the upper half of the inner end (front end).
Further, flange portions 12a ₁ and 12b ₂ , 12 are provided on the outer edge (rear edge) of the bottom surface portion 12a and the side surface portions 12b, 12c.
c ₂ to the outside on the side of the bottom surface portion 12a, and to the both side surface portions 12b, 1
On the side of 2c, it is formed by bending inwardly at a right angle, and each edge of the closing plate 14 also has flange portions 14a, 1 as shown in FIG.
4b, 14c and 14d are formed by bending inward at right angles. Further, a support piece 12a ₂ for sandwiching and supporting the lower edge side flange portion 14a of the closing plate 14 is formed in a cut step shape on the inner end edge (front end edge) of the bottom surface portion 12a.
On both side surface portions 12b and 12c the support piece 12b ₃ and 12c ₃ the top plate 13 is positioned and supported is formed in a shape to cut-and-raised horizontally inward.

The substrate 12 and top plate 13 formed in this way
The box-shaped chassis 11 having a closed structure is formed by combining the closing plate 14 and the closing plate 14 and screwing them together.

The CD player unit 3 is housed and held in the box-shaped chassis 11 via a mounting frame 16 and an insulator 17. The mounting frame 16 has a substantially U-shaped cross section as shown in FIG. 4, and is mounted on both sides of the CD player unit 3 so as to face each other, and is mounted on one horizontal surface portion (lower horizontal surface portion in the illustrated example) 16a. The surface 16a ₁ is formed, and the mounting surface 16a ₁ is fixedly mounted by superposing it on the mounting leg portion 3b formed on the side surface of the CD player unit 3 and tightening with the screw 18. It also serves as reinforcement, that is, a deformation preventing member.

In this way, the insulator 17 is mounted on the other horizontal surface portion 16b (upper side in the illustrated example) of the mounting frame 16 mounted on the CD player unit 3. As shown in FIG. 5, the insulator 17 has a bottomed cylindrical holder 17a, a cap-shaped elastic body 17b made of rubber or the like, a coil spring 17c, and a mounting shaft 17 having a male screw portion at its tip.
and d. The insulator 17 is attached to the attachment frame 16 by a cap-shaped elastic body 17b.
Is engaged with the mounting hole 16b ₁ of the other horizontal surface portion 16b (upper side) of the mounting frame 16 at its rim portion and protrudes to the outer surface side (upper side), and is fitted into the holder 17a and the inner surface side of the horizontal surface portion 16b. The mounting shaft 17d is inserted from below (from below) via the coil spring 17c, and the male screw portion at the tip end is projected from the holder 17a for mounting. The insulators 17 are attached to the mounting frames 16 on both sides one by one.

In this way, the mounting frame 16 and the insulator 1
In order to store and hold the CD player unit 3 to which the 7 is attached in the box-shaped chassis 11 described above, first, the box-shaped chassis 1
1. Each insulator 17 is attached to the top plate 13 in the state before assembly of 1.
The mounting shaft 17d is mounted by inserting the tip male screw portion into the mounting through hole and tightening with the nut 19.

The both side surfaces 12b of the top plate 13 in this state the substrate 12, the supporting piece 12b ₃ and fitted between 12c, 12c ₃
Placed on and engaged with the rising flange portions 13a, 13 on both sides.
b, the screws 15 are attached to both side surface portions 12b and 12c.
To fix by screwing.

Next, the closing plate 14 is made to correspond to the inner end (front end) side opening formed by the bottom surface portion 12a, both side surface portions 12b, 12c and the top plate 13 of the substrate 12, and the flange portion of the peripheral portion thereof. Surface portions 12a, 12b, 12c, 13 which are respectively superposed on 14a, 14b, 14c, 14d.
It is fastened with a screw 15. As a result, the box-shaped chassis 11 that houses and holds the CD player unit 3 is configured, and the outer end (rear end in the illustrated example) side of the box-shaped chassis 11 is an open portion 11a.

The box-shaped chassis 11 accommodating and holding the CD player unit 3 is the speaker cabinet 1 described above.
The bracket chassis 21 is attached to the open side 11a of the device storage portion 1b.

The bracket chassis 21 is formed of a rigid plate material such as a relatively thick metal plate in the shape of a quadrilateral frame, and the inner circumference thereof is from the bottom surface portion 12a of the substrate 12 of the box-shaped chassis 11 to both side surface portions. The outer edges (rear ends) of 12b and 12c are formed substantially along the outer periphery of the panel 5 and the outer periphery thereof is formed substantially along the outer periphery of the panel 5.

The bracket chassis 21 is mounted on the box-shaped chassis 11 and the flange portion 12 on the outer end (rear end) side of the board 12 is provided.
screwed is fixed by screws 22 in a ₁ and 12b _2, 12c _2. The above-mentioned panel 5 is attached to the outer surface side of the bracket chassis 21 fixed to the box-like chassis 11 as described above.
From the inner side of the flanges 12b ₂ and 12c _{2 on} both sides of the board 12, that is, the box-like chassis 11 side.
By tightening through the bracket chassis 21,
The panel 5 is integrally connected to the bracket chassis 21 and the box-shaped chassis 11. In this state, the box-shaped chassis 1
The disc tray 3a of the CD player unit 3 housed and held in 1 faces the opening 8 of the panel 5 and can be inserted and removed through the opening 8.

After assembling in this way, the CD player unit 3 is attached to the main control circuit unit 24 attached to the upper surface of the box-shaped chassis 11, that is, the upper surface of the top plate 13.
Side control circuit and the electric circuit unit 25 attached to the inner surface side of the panel 5 are electrically connected. In this way, the box-shaped chassis 11 assembled by fixing the bracket chassis 21 and the panel 5 is inserted from the inside (front end) side into the speaker cabinet 1 through the opening 1c on the rear surface side, and the panel 5 is inserted.
Open the inner peripheral edge of the bracket and the inner surface side of the bracket chassis 21.
It contacts the outer peripheral surface of c. In this state, the projecting edge portion 12 of the inner end edge portion (front end edge portion) of both side surface portions 12b and 12c of the substrate 12
b ₁ and 12c ₁ are engaged with an L-shaped step portion 1d formed on the inner surface on the front side of the speaker cabinet 1, so that the box-shaped chassis 11 is supported on the inner and outer ends (front and rear ends). A vibration absorbing sheet 26 such as a rubber sheet is previously attached to the L-shaped step portion 1b of the speaker cabinet 1. The box-shaped chassis 11 in which the panel 5 and the bracket chassis 21 are fixed in this manner is inserted into the speaker cabinet 1 so as to be engaged with and supported by the inner edge of the opening 1c and the L-shaped step portion 1d. The screw 27 is inserted from the outer surface side and is screwed into the peripheral surface of the opening 1c of the speaker cabinet 1 through the bracket chassis 21 to be fixed to the speaker cabinet 1 together with the panel 5 and the bracket chassis 21. 1 and 2, reference numeral 28 is a handle.

As described above, the box-shaped chassis 11 housed and fixed in the speaker cabinet 1 has the opening 1c.
This box-shaped chassis 1 is opened only to the side and is sealed to the inside of the speaker cabinet 1.
The CD player unit 3 housed and held in 1 is not affected by the sound pressure generated from the speaker 2, so that the so-called skipped sound at the time of reproducing the disc is prevented.

Further, the CD player unit 3 is fitted and held from both sides by a mounting frame 16 having a substantially U-shaped cross section, and by mounting the mounting frame 16 on the box-shaped chassis 11 via an insulator 17, the box-shaped chassis 3 is formed. Since it is housed and held in the chassis 11, the vibration applied from the outside to the box-shaped chassis 11 is absorbed by the insulator 17 and is hardly transmitted to the CD player unit 3 to prevent so-called skipped sound when the disc is reproduced.

Since the box-shaped chassis 11 is integrally connected to the panel 5 via the frame-shaped bracket chassis 21, the mechanical strength is increased and the box-shaped chassis 11 is fixed to the speaker cabinet 1 in this integrated state. As a result, it becomes integrated with the speaker cabinet 1 to form a vibration resistant structure, which makes it difficult to receive external vibration.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the gist of the present invention.

For example, although the speaker cabinet 1 is a vertical type in the illustrated example, it may be a horizontal type. In the case of a vertical type, the recording medium reproducing apparatus is arranged below the speaker 2. Good.

Further, each plate 12, 1 of the box-shaped chassis 11
It is preferable to form the metal plates 3 and 14 from the viewpoint of molding, but they may be molded from a resin material or the like.

Further, the shape and the like of each member can be arbitrarily changed according to the form of the equipment, and the insulator can have another structure, for example, one containing air, oil or the like.

In this example, the case where the compact disk player as the recording medium reproducing apparatus is built in the speaker cabinet has been described, but a tape recorder can be built in the same configuration, and in this case, of course. While changing the shape of the box-shaped chassis. Also, other devices can be built in with the same configuration.

[0033]

As described above, according to the present invention, in an audio device in which a reproducing device for a recording medium is built in a speaker cabinet, the reproducing device is housed and held in a box-shaped chassis having a sealed structure with respect to the speaker housing portion. Since the playback device is configured to be built-in, the playback device is hardly affected by the sound pressure generated in the built-in speaker, the swing of the recording medium is prevented, and a so-called skipping phenomenon occurs during playback. Playback is stable and accurate.

Further, since it is not necessary to install a partition wall in the speaker cabinet, the volume is not reduced, and the acoustic effect such as a problem in reproducing the low range of the speaker is not hindered. Has a great effect when applied to an audio device having a built-in speaker with a large output.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view with a part of an example of an audio device according to the present invention omitted.

FIG. 2 is an external perspective view of an example of an audio device according to the present invention.

FIG. 3 is an exploded perspective view of a main part of the audio device shown in FIGS. 1 and 2.

FIG. 4 is an exploded perspective view in which a holding portion of the reproducing device in FIG. 3 is partially omitted.

FIG. 5 is a cross-sectional view showing an attached state of an insulator applied to the audio device according to the present invention.

[Explanation of symbols]

 1 Speaker Cabinet 2 Speaker 3 Disc Player Unit as Playback Device 5 Panel 8 Opening 11 Box-shaped Chassis 16 Mounting Frame 17 Insulator 21 Bracket Chassis

Claims (5)

[Claims] 1. An audio device comprising a speaker cabinet containing a recording medium reproducing device, wherein the reproducing device is housed and held in the speaker cabinet in a box-shaped chassis having a sealed structure with respect to the speaker housing. The audio equipment is characterized by being built in. 2. The reproducing device in the box-shaped chassis,
The acoustic device according to claim 1, wherein the acoustic device is stored and held via a mounting frame and an insulator. 3. The box-shaped chassis accommodating and holding the playback device is integrally fixed to a peripheral portion of an opening of the speaker cabinet with a frame-shaped bracket chassis and a surface panel. The listed audio equipment. 4. The box-shaped chassis includes a substrate having a bottom surface portion and both side surface portions, a top plate, and a closing plate for closing the inner end side of the substrate and the top plate, and a surface side facing the closing plate. The acoustic device according to claim 1, wherein an opening is formed in the opening. 5. The frame-shaped bracket is formed of a relatively thick metal plate having a shape along the outer peripheral edge of the box-shaped chassis and the inner peripheral edge of the front panel. The audio device described in.