JPH10191487A - Speaker equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide two kinds of surrounding speakers exclusively for left and right mounts at a low cost with a small number of kinds of components without right/left display error in a completed state. SOLUTION: The front side of a speaker unit 5 is directed to the right and the speaker unit 5 is mounted to a speaker mount 2b of a left installation use partition plate 2, a blind part 2a is inserted to a throughhole 1a of a base 1 and moved to the left and mounted to place the speaker mount 2b to a mount reference face 6, and an 'R' letter 1b indicated integrally to the base 1 is hidden by the blind 2a and only an 'L' letter 1c only indicated integrally is visually confirmed externally and the left exclusive mount surrounding speaker equipment 10 is configured with a dipole characteristic.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surround speaker having dipole characteristics for use in audio reproduction equipment.

[0002]

2. Description of the Related Art In recent years, audio playback devices generally have a dipole (DPL) playback function.
There are two types of speakers, left and right for surround, installed on the left and right sides of the listener in addition to the main speaker installed on the entire surface of the listener for more faithful three-dimensional sound field reproduction. There is a need for dipole characteristics. Therefore, two types of bases (for left installation and right installation) are used to eliminate assembly errors. Also, in order to inform the user of the installation method without fail, "L" and "R" stickers for indicating the left and right are separately attached to the respective housings to indicate the left and right.

FIGS. 6A and 6B are front views showing cross sections of conventional left-only and right-only surround speaker devices, respectively. In FIG. 6 (a), a left-only surround speaker device is provided with a concave portion 21 in a left-only base 21.
a, and cap nuts 21b, 21c. The mounting positioning pin 22a of the left-only partition plate 22 to which the speaker unit 5 is mounted is inserted into the recess 21a of the base 21, and is attached to the cap nuts 21b, 21c by the mounting screw 3. In addition, the groove 4 on the inner surface of the net frame cover 4
b is fitted and fixed around the left-only middle partition plate 22. Then, an L-display sticker 28 is attached to an appropriate position on the rear surface of the left-only base 21 to complete the left-installed speaker device 30.

[0006] Similarly, in FIG. 6 (b), a right-only surround speaker device is provided with a recess 31 a in a right-only base 31.
And the cap nuts 31b and 31c. The mounting positioning pins 32a of the right-only partition plate 32 to which the speaker unit 5 is attached are inserted into the recesses 31a of the base 31 and attached to the cap nuts 31b and 31c with the mounting screws 3. In addition, the groove 4b on the inner surface of the net frame cover 4
Is fitted and fixed around the right-only partition plate 32. Then, an R display sticker 38 is attached to an appropriate position on the rear surface of the base 31 dedicated to the right, so that the speaker device 4 dedicated to the right is installed.
Complete 0.

[0005]

However, the conventional method as described above requires two types of bases, one dedicated to the left and the other dedicated to the right.
Two types of seals are required, and the types of parts are increased, resulting in a significant cost increase. In addition, there has been a problem that many mistakes in sticking of a seal occur in a manufacturing process and a repair process thereof, thereby lowering productivity and increasing production cost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has a large number of parts, a large cost reduction, an improvement in productivity by eliminating mistakes in work in the manufacturing process, and a lower cost. It is an object to provide a surround speaker.

[0007]

According to a first aspect of the present invention, there is provided a loudspeaker device having a symmetrical shape with respect to a center mounting reference plane and a symmetrical shape with respect to a mounting reference plane. One type of base having a symmetrically shaped through-hole and integrally forming and displaying left and right characters or symbols symmetrically with respect to a reference plane at portions visible from the left and right outside of the through-hole, a speaker unit, and a speaker unit The speaker has a speaker mounting part and a blindfold part for mounting, and the blindfold part is directed to a left installation middle partition plate that blinds letters or symbols indicating the right when mounted on the base, and two faces symmetrical to the mounting reference plane. A net frame cover having an open sound path opening and forming a housing of the device together with a base and a left-side installation partition plate. Blindfold a speaker mounting portion and blindfold portion for mounting the speaker unit includes a blindfold would like the right installation for the inner partition plate characters or symbols indicating the left when attached to the base.

According to the first aspect of the present invention, the blind portion of the left installation partition plate, which is mounted on the speaker mounting portion with the front surface of the speaker unit facing leftward, is inserted into the through hole of the base and then turned right or left. By moving and mounting, the speaker mounting portion of the left installation partition is located on the mounting reference plane, and the right character or symbol integrally formed and displayed on the base is hidden by the blindfold portion and the left integrally formed and displayed. A speaker device for surround having a dipole characteristic exclusively for left installation by making only characters or symbols indicating
The speaker unit is mounted on the right side by inserting the blindfold of the partition plate into the through hole of the base and moving it to the left or right to mount the speaker unit on the speaker mounting part with the front facing right. The speaker mounting part of the partition plate is located on the mounting reference plane, and the left character or symbol integrally formed and displayed on the base is hidden by the blindfold part, and only the right character or symbol integrally formed and displayed is visually recognized from the outside. In this way, a surround speaker device having dipole characteristics dedicated to right installation is constructed.

As a result, two types of bases can be used.
By preparing different kinds of middle partition plates, it is possible to assemble two kinds of surround speakers exclusively for left installation and right installation only by combining the prepared components and to display the left or right display without fail. Next, in claim 3, a reference surface is provided at a portion which has a shape symmetrical with respect to the center mounting reference plane and which has a shape symmetrical with respect to the mounting reference plane, and which is visible from the left and right outside of the through hole. A single type of base in which characters or symbols indicating left and right are integrally formed and displayed symmetrically, a speaker unit, a speaker mounting portion for mounting the speaker unit, and a blind portion, and the blind portion is mounted on the base. A net frame cover for blindfolding a character or symbol indicating right or left, and a net frame cover having a sound path opening open to two surfaces symmetrical to the mounting reference plane and forming a housing of the device together with the base and the middle partition plate And

[0010] Then, by inserting the blind portion of the partition plate attached to the speaker mounting portion with the front surface facing the left direction into the through hole of the base, and moving it rightward or leftward to attach it, the speaker of the partition plate is mounted. The mounting portion is located on the mounting reference plane, and the right character or symbol integrally formed and displayed on the base is hidden by the blindfold portion so that only the left character or symbol integrally formed and displayed can be visually recognized from the outside. A speaker unit for surround that has dipole characteristics exclusively for left installation, and the speaker unit is rotated by 180 degrees with respect to the reference plane, with the partition unit attached to the speaker attachment part with the front of the speaker unit facing right. By turning the front of the right side to the right and inserting the blindfold into the through hole of the base, moving it to the left or right and attaching it, The speaker mounting part of the partition plate is located on the mounting reference plane, and the left character or symbol integrally formed and displayed on the base is hidden by the blindfold part, and only the right character or symbol integrally formed and displayed is visually recognized from the outside. In this way, a surround speaker device having dipole characteristics dedicated to right installation is constructed.

[0011] Thus, all kinds of parts need only be one kind, and when combining the prepared parts, two kinds of surround speakers dedicated to left installation and right installation only can be obtained by simply rotating and mounting the partition plate. The left or right display can be displayed without fail while being assembled. It can be assembled with such a small number of parts,
It is possible to eliminate mistakes in the work by pasting, improve productivity, and provide inexpensively two types of surround speakers dedicated to left installation and right installation having two types of dipole characteristics symmetrical to each other. be able to.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a surround speaker device according to the present invention will be described below in detail with reference to FIGS. FIG. 1 is a front view showing a cross-section of a surround left speaker device according to a first embodiment of the present invention, FIG. 2 is a front view showing a cross-section of the right speaker device, and FIG. 4 (a) is a plan view, FIG. 4 (b) is a front view showing a cross section, FIG. 4 (c) is a bottom view, FIG.
(A) is a front view of the left partition 2, (b) is a side view, (c) is a bottom view, and (d) is a right partition 12.
5, (e) is a side view, (f) is a bottom view, and FIG.
FIGS. 3A and 3B are external views of a speaker device for surround sound for left and right installations, respectively, wherein FIG. 3A is a plan view, FIG.
(C) is a side view, and (d) is a bottom view.

As shown in FIG. 3, the base 1 has through-holes 1a vertically arranged symmetrically with respect to the center mounting reference plane 6, and the left and right positions of one of the through-holes 1a are used as reference points. In the symmetrical position, the "R" character 1b and the "L" character 1c are integrally formed on the base 1 surface of the portion that can be visually recognized from the outside by engraving in a mold, etc. 2 are provided with two cap nuts 1d and 1e, respectively, and two cap nuts 1f and 1g for mounting the right installation partition plate 12, respectively. A hole 1h is provided.

As shown in FIG. 4, the left partition plate 2 and the right partition plate 12 are provided with blind portions 2a and 12a, respectively, and a mounting portion 2b for mounting a speaker.
And 12b, openings 2c and 12c for emitting sound from the front of the attached speaker, and four nuts 2d and 12d for attaching the speaker. A sound path opening 4 opened symmetrically with respect to the mounting reference plane 6 toward the left and right sides of the net frame cover 4.
In the center of the inner surface, a groove 4b for fitting around the left installation middle partition plate 2 or the right installation middle partition plate 12 is provided.

When assembling the components as described above, the speaker device 10 dedicated to the left installation will be described first. In FIG. 1, first, a speaker unit 5 is attached to the left partition plate 2 by screws or other means, and then the two blind portions 2 a of the left installation middle partition plate 2 to which the speaker unit 5 is attached are inserted into the through holes of the base 1. After passing through 1a, it is moved to the left and attached to the cap nuts 1d and 1e of the base 1 with the attachment screws 3. Then, the groove 4b on the inner surface of the net frame cover 4 is fitted and fixed to the periphery of the left installation middle partition plate 2, that is, to the upper edge of the speaker mounting portion 2b. Then, the "R" character 1b engraved on the base 1 is hidden by one of the two blind portions 2a of the left installation middle partition plate 2,
Only the "L" character 1c can be visually recognized from the outside as shown in FIG. 5D, and it can be confirmed that this speaker device is dedicated to the left installation.

In the assembled state, the net frame cover 4 forms the housing of the device together with the base 1 and the partition plate 2 for left installation, thereby forming a surround speaker device 10 having dipole characteristics exclusively for left installation. When the speaker device 10 dedicated to the left installation is installed on the wall on the left side of the listener, the speaker unit 5 is in a state facing the rear of the listener.

In the above description, the positions of the blindfolds 2a and 12a can be formed in the opposite directions to those shown in the figure. It may be attached later to the base while being shifted in the direction opposite to the illustration. Next, the assembly of the speaker device dedicated to the right installation will be described with reference to FIG. First, the speaker unit 5 is attached to the right installation partition plate 12 by screws or other means, and then the two blindfold portions 1 of the right installation middle partition plate 12 to which the speaker unit 5 is attached.
2a is moved to the right after passing through the through hole 1a of the base 1, and the cap nuts 1f, 1g of the base 1 are attached with the mounting screws 3.
Attach to Then, the groove 4b on the inner surface of the net frame cover 4 is fitted and fixed to the periphery of the right installation middle partition plate 12, that is, the upper edge of the speaker mounting portion 12b. Then, the "L" character 1c engraved on the base 1 is hidden by one of the two blind portions 12a of the right installation middle partition plate 12, and only the "R" character 1b can be visually recognized from the outside. It can be confirmed that it is only for installation.

In the assembled state, the net frame cover 4 is provided with a base 1 and a right installation middle partition plate 12 to form a housing of the apparatus. A dedicated surround speaker device 20 is configured. When the speaker device 20 for right installation is installed on the wall on the right side of the listener, the speaker unit 5 faces the rear of the listener.

As described above, according to the present embodiment, one type of base 1 and two types of partition plates 2 or 12 are separately combined, so that the left installation having two types of dipole characteristics symmetrical to each other. It is possible to improve the productivity and provide a more inexpensive surround speaker with a small number of parts, eliminating mistakes in the sticking operation of the seal in the manufacturing process. it can.

Next, a second embodiment will be described.
In the first embodiment, two types of partition plates were required,
By considering the design of the speaker device, the partition plate 2 is formed in a vertically symmetrical shape with respect to the reference plane 7 at the upper and lower centers in FIG. Then, the speaker unit 5 is attached to the middle partition plate in the right direction, and the speaker unit 5 is rotated by 180 degrees with respect to the center attachment reference plane 6 and attached to the base 1 so that the speaker unit faces the left direction. The speaker device can be configured exclusively for left installation and right installation, and the "R" character 1b or "L" character 1c is hidden by the blindfold part 1a, and the display is made without fail.

In the above embodiment, the shape, quantity, etc. of each part can be freely changed. For example, the engraved characters "L" and "R" are formed by engraving "R" on the left side of the upper through-hole 1a and "L" on the right side of the lower through-hole 1a instead of the left and right of one through-hole 1a. In addition, only one through hole 1a, that is, a shape symmetrical with respect to both of the mounting reference planes 6 and 7, may be used as a matter of course.
The objective can be achieved even if each of the two blindfold portions 2a and 12a is one.

The display of "L", "R", etc. is not limited to this, but may be "left", "right", and may be a symbol as long as the left and right can be identified. And so on. Furthermore, the number of mounting screws and holes for mounting each part and the details of the mounting method are not limited to those illustrated.

[0023]

As described above, according to the loudspeaker apparatus of the present invention, according to the first and second aspects of the present invention, the parts prepared by preparing two kinds of partition plates for one kind of base are provided. Just by combining them, two types of surround speakers dedicated to left installation and right installation can be assembled, and the left or right display can be displayed without fail.

According to the third aspect of the present invention, all the components may be of one type, and only the left and right installations can be performed by simply rotating and mounting the partition plate when combining the prepared components. A variety of surround speakers can be assembled, and the left or right display can be displayed without fail. As described above, the present invention can be assembled with a small number of parts, eliminates mistakes in the work of pasting, improves productivity, and has two types of dipole characteristics symmetrical to each other. It is possible to provide two kinds of dedicated surround speakers at low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing a cross section of a surround-use speaker device for left installation according to an embodiment of the present invention.

FIG. 2 is a front view showing a cross-section of the surround speaker device for the right installation.

FIG. 3 is a detailed view of the same base.

FIG. 4 is a front view, a side view, and a bottom view of the left-only partition plate and the right-only partition plate, respectively.

FIG. 5 is an external view of a surround speaker device for left installation and right installation.

FIG. 6 is a front view showing a cross section of a conventional left-only and right-only surround speaker;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 1a Through-hole 1b Character "R" 1c Character "L" 2 Middle partition plate for left installation 3 Mounting screw 4 Net frame cover 4a groove 5 Speaker unit 6 Mounting reference plane 12 Middle partition plate for right installation

Claims (3)

[Claims] 1. A reference hole which has a shape symmetrical with respect to a center mounting reference plane and has a shape symmetrical with respect to the mounting reference plane and which is visible from the left and right outside of the through hole. A type of base in which characters or symbols indicating left and right are integrally formed and displayed symmetrically on a surface; a speaker unit; a speaker mounting portion for mounting the speaker unit and a blind portion; and the blind portion is provided on the base. A left-installation partition plate for blindfolding the character or symbol indicating the right when attached, and a sound path opening opened toward two surfaces symmetrical to the attachment reference surface, the base and the left-installation middle plate A net frame cover forming a housing of the apparatus together with a partition plate, and a left-installation middle partition plate attached to a speaker mounting portion with the front side of the speaker unit facing leftward. By inserting the blindfold into the through hole of the base and moving it to the right or left and mounting it, the speaker mounting part of the left installation partition is located on the mounting reference plane and integrally formed and displayed on the base. In addition, the characters or symbols indicating the right are hidden by the blindfold portion so that only the characters or symbols indicating the left, which are integrally formed and displayed, can be visually recognized from the outside to constitute a surround speaker having a dipole characteristic dedicated to the left installation. Speaker device. 2. A speaker mounting portion for mounting a speaker unit in place of a left partition plate and a blindfold portion, wherein the blindfold portion blinds the characters or symbols indicating the left when mounted on the base. A right installation middle partition plate is provided, and a right installation middle partition plate attached to a speaker mounting portion with the front face of the speaker unit facing rightward is inserted into a through hole of the base and then left or right direction. By moving to and attaching to the speaker, the speaker mounting portion of the right installation middle partition plate is located on the mounting reference plane, and the letter or symbol indicating left which is integrally formed and displayed on the base is hidden by the blindfold portion and integrally formed and displayed. A surround speaker having a dipole characteristic exclusively for right installation by making only the right character or symbol shown right visible from the outside. The speaker device to claim 1, wherein. 3. A through hole having a shape symmetrical with respect to a center mounting reference plane and having a shape symmetrical with respect to the mounting reference plane. A type of base in which characters or symbols indicating left and right are integrally formed and displayed symmetrically on a surface; a speaker unit; a speaker mounting portion for mounting the speaker unit and a blind portion; and the blind portion is provided on the base. A middle partition plate for blindfolding the character or symbol indicating the right or left when mounted, and a sound path opening opened toward two surfaces symmetrical to the mounting reference plane, and a device together with the base and the middle partition plate And a net frame cover forming a housing of the speaker unit, and a blindfold portion of a partition plate attached to a speaker mounting portion with the front surface of the speaker unit facing left. By inserting it into the through hole of the base and moving it in the right or left direction and mounting it, the speaker mounting part of the partitioning plate is located on the mounting reference plane and the right-hand character or symbol integrally formed and displayed on the base is displayed. A surround speaker having a dipole characteristic dedicated to left installation is configured so that only the character or symbol indicating left, which is integrally formed and displayed by being hidden by the blindfold portion, is configured from the outside. The partition plate attached to the speaker mounting portion is turned 180 degrees with respect to the mounting reference plane so that the front of the speaker unit faces right and the blindfold is inserted into the through hole of the base. Or, by moving to the right, the speaker mounting part of the partition is located on the mounting reference plane and integrated with the base. A surround speaker having a dipole characteristic exclusively for right installation by hiding the displayed left character or symbol in the blindfold portion so that only the right character or symbol integrally formed and displayed can be visually recognized from the outside. A speaker device characterized by comprising: