JPH0741276Y2 - Speaker device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The speaker device of the present invention will be described according to the following items.

A. Industrial fields of use B. Overview of the device C. Background technology D. Problems to be solved by the device E. Means for solving the problem F. Example a. Decorative panel b. Speaker part b-1. Baffle housing b-2. Speaker unit c. Joining of decorative panel and speaker part d. Function G. Effect of device (A. Industrial application field) The present invention relates to a novel speaker device. Specifically, it is intended to provide a novel speaker device which is excellent in surround effect and design effect and can be constructed at low cost.

(B. Outline of the Invention) In the speaker device of the present invention, two decorative panels are arranged such that two speaker units face each other with a speaker portion provided so that two speaker units face in opposite directions.
The facing parts of the decorative panel are offset from each other in the axial direction of the speaker units so that most of the sounds emitted from the two speaker units are directed in substantially opposite directions, thereby weakening the directivity and producing a design effect. It is possible to construct an excellent speaker device at low cost.

(C. Background Art) Recently, electronic devices are required to have not only better functions but also excellent design. In particular, speaker devices, especially Speaker devices used in surround speaker systems and the like are often mounted on walls, ceilings, etc., so that they are required not only to be sound devices but also to function as an interior, so to speak, as if they were objects. It is coming.

In order to meet such a demand, a speaker device including a spherical speaker box made of crystal glass or a speaker box made of a ceramic ellipsoid has recently been proposed.

(D. Problem to be Solved by the Invention) However, these conventional speaker devices are high in cost, and do not necessarily harmonize with a Western-style or Japanese-style atmosphere. Since it has a clear directivity, it was often not suitable as a surround speaker system.

(E. Means for Solving the Problem) In order to solve the above problems, the speaker device of the present invention comprises two decorative panels, a speaker section having two speaker units facing in opposite directions. The two decorative panels are arranged so as to be opposed to each other in the plate thickness direction, and the speaker portions are sandwiched by at least portions of the two decorative panels that are biased opposite to each other in a direction parallel to the axial direction of the speaker unit.

Therefore, according to the speaker device of the present invention, when the decorative panel is viewed from the thickness direction, the speaker portion is completely hidden by the decorative panel and cannot be seen. Therefore, it is necessary to make the viewer aware of the speaker device. However, the design of the decorative panel is emphasized, and the two decorative panels are arranged so that the portions of the two decorative panels that are offset in opposite directions in the axial direction of the decorative unit face each other with the speaker unit interposed therebetween. Most of the sound emitted from the unit is reflected by the portions of the two decorative panels which are not opposed to each other in directions substantially opposite to each other, whereby the directivity of the sound can be significantly weakened.

(F. Embodiment) The details of the speaker device of the present invention will be described below with reference to the illustrated embodiment.

(A. Decorative panel) 1 is a speaker device.

Numerals 2 and 3 are decorative panels of the speaker device 1, which are in the form of a flat plate having a substantially flat shape as a whole, and are made of, for example, ceramics such as pottery fired with glaze, or ceramic-like materials such as pottery. , Made of a relatively hard ceramic-like synthetic resin mixed with magnetism and earthenware.

The size relationship between the two decorative panels 2 and 3 need not be specified, but they may be different to some extent (in the illustrated embodiment, one decorative panel 2 is By making it smaller than the other decorative panel 3, the appearance of the speaker device 1 can be increased.

(B. Speaker Unit) 4 is a speaker unit, which includes a baffle housing and two speaker units supported by the baffle housing.

(B-1. Baffle case) 5 is a baffle case, and the baffle case 5 is a top plate 6 and a bottom plate 7 facing each other in a vertical direction in parallel with each other, and a top plate 6 and a bottom plate 7 in the longitudinal direction. It consists of two baffle plates 8 and 9 facing each other in parallel, and cover nets 10 and 11 attached to these baffle plates 8 and 9, and these top plates 6,
The bottom plate 7 and the baffle plates 8 and 9 are made of, for example, a ceramic-like synthetic resin.

The top plate 6 and the bottom plate 7 are arranged in the longitudinal direction in the decorative panel 2,
3 has a length of about two thirds of one side and has a rectangular flat plate shape having a length which is less than half of the length in the longitudinal direction in the width direction, and a baffle plate. 8 and 9 are slightly longer than the lengths of the top plate 6 and the bottom plate 7 in the longitudinal direction, and have a width equal to the width of the top plate 6 and the bottom plate 7, which are also substantially rectangular flat plates, and are baffle plates. L-shaped notches 8a, 8a, 9a, 9a are formed in the upper and lower end portions of the surfaces 8 and 9 facing each other when viewed from the width direction, and both end portions of the top plate 6 and the bottom plate 7 are the notch 8a. And 9a, 8a and 9a are separately engaged and adhered, whereby the top plate 6 and the bottom plate 7 and the two baffle plates 8 and 9 are combined so as to form a rectangular frame. ing.

In addition, shallow recesses 8b and 9b having a rectangular shape are formed at positions on the baffle plates 8 and 9 facing each other from the center toward the upper side of the baffle plates, and the circular sound emitting portions are provided at the parts where the recesses 8b and 9b are formed. Holes 8c, 9c are formed, and further, engaging holes 8d, 8d, 9d, 9d are formed at positions near the upper and lower ends of the baffle plates 8 and 9, respectively.

The cover nets 10 and 11 are made of synthetic resin and have frame bodies 10a and 11a having substantially the same outer shape as the baffle plates 8 and 9, and the frame bodies 10 and 11a.
The frame body 10 is composed of nets 10b and 11b stretched over a and 11a.
Engagement pieces 12, 12, 13, 13 protruding from the centers of the upper and lower ends of a, 11a in a direction opposite to each other and having a certain degree of bending elasticity
Are provided, and claw portions 12a, 12a, 13a, 13a protruding toward opposite sides are formed at the tip ends of these engaging pieces 12, 12, 13, 13.

Then, the engaging pieces 12, 12, 13, 13 are attached to the baffle plates 8, 9
When the engaging holes 8d, 8d, 9d, 9d are inserted from the outside, the claw portions 12a, 12a, 13a, 13a are engaged with the opening edge portions of the engaging holes 8d, 8d, 9d, 9d, and And the side covers 10, 11 at the same time as
End portions 10c, 10c, 11 bent inward of each other
c and 11c are brought into contact with both end surfaces of the top plate 6 and the bottom plate 7, so that the cover nets 10 and 11 cover the outer surfaces of the baffle plates 8 and 9 separately. Be attached.

(B-2. Speaker unit) 14 and 15 are speaker units, and their frames 16,
16 'mounting flange 16a, 16'a is the baffle plate 8,
The recesses 8b and 9b formed on the base plate 9 are individually fitted and fixed to the baffle plates 8 and 9 by screws 17, 17, ....

Therefore, the two speaker units 14 and 15 are arranged in the baffle housing 5 in directions opposite to each other and are arranged so as to block the sound output holes 8d and 9d from the inside.

.. are lead wires having one ends connected to the speaker units 14, 15, and the other ends of the lead wires 18, 18, ... are located at positions near the lower end of the other decorative panel 3. Connection terminal 19 fixed so as to penetrate through it in the plate thickness direction,
It is connected to 19 ...

(C. Joining of decorative panel and speaker section) And, such a speaker section 4 has its baffle casing 5
Is joined to the two decorative panels 2 and 3 so as to be sandwiched between these decorative panels 2 and 3.

That is, both side end surfaces of the baffle housing 5, that is, two side end surfaces in the width direction of the top plate 6, the bottom plate 7, and the baffle plates 8 and 9 are respectively joined to the facing surfaces of the two decorative panels 2 and 3,
Then, this joining is performed so that the portions of the two decorative panels 2 and 3 which are biased to opposite sides in the direction parallel to the axial directions of the speaker units 14 and 15 face each other with the speaker unit 4 interposed therebetween. Make sure that the bottom edges of the two decorative panels 2 and 3 are even.

The baffle housing 5 and the decorative panels 2 and 3 are joined to each other with an adhesive, for example.

(D. Action) Since the speaker device 1 is configured in this way, when viewed from the thickness direction of the decorative panels 2 and 3, the speaker unit 4 appears hidden by the decorative panels 2 and 3. Since it is not present, it has a very clean appearance. Particularly, in this embodiment, the decorative panels 2 and 3 are made of pottery or a material having a texture close to that, so that it creates an artistic atmosphere and a Japanese style. In any style environment, such as Western style, it is very in harmony with the atmosphere of the environment.

The two decorative panels 2 and 3 are speaker units.
Most of the sounds emitted from the two speaker units 14 and 15 are makeup because the portions of the speakers 14 and 15 that are offset in opposite directions in the direction parallel to the axial direction face each other with the speaker unit 4 interposed therebetween. The two direction components, which are opposite to each other in the plate thickness direction of the panels 2 and 3, are individually directed, and the directivity of the speaker units 14 and 15 is significantly weakened. That is, it functions as a speaker device having strong omnidirectionality.

Therefore, when such a speaker device 1 is used as a so-called surround speaker, the surround effect is sufficiently exerted, and the placement on a wall surface, a ceiling or the like further enhances the artistic effect.

Furthermore, since the decorative panels 2 and 3 and the baffle housing 5 are made of pottery or a material close thereto, that is, an extremely hard material, the resonance of sound is very small, and therefore,
The sound emitted from the speaker units 14 and 15 can be suppressed from becoming muddy, whereby a so-called clear sound or a transparent sound can be obtained.

(G. Effect of the Invention) As is apparent from the above description, the speaker device of the present invention has a speaker unit having two speaker units facing in opposite directions and facing each other in the thickness direction.
A plurality of decorative panels, wherein the two decorative panels are arranged such that at least portions of the two decorative panels which are biased to opposite sides in a direction parallel to the axial direction of the speaker unit face each other with the speaker portion interposed therebetween. And

Therefore, according to the speaker device of the present invention, when the decorative panel is viewed from the thickness direction, the speaker portion is completely hidden by the decorative panel and cannot be seen. Therefore, it is necessary to make the viewer aware of the speaker device. However, the design of the decorative panel is emphasized, and the two decorative panels are arranged so that the portions of the two decorative panels that are offset in opposite directions in the axial direction of the decorative unit face each other with the speaker unit interposed therebetween. Most of the sound emitted from the unit is reflected by the portions of the two decorative panels which are not opposed to each other in directions substantially opposite to each other, whereby the directivity of the sound can be significantly weakened.

Although the decorative panel is made of pottery or a pottery-like material in the above-described embodiment, the resonance of sound can be reduced by using such a material, so that no special means is used. Can also get a clear sound.

However, the decorative panel according to the present invention may be made of wood, synthetic resin, or the like.

[Brief description of drawings]

1 shows a perspective view of a speaker device of the present invention, FIG. 1 is a perspective view, FIG. 2 is an enlarged sectional view taken along line II-II of FIG. 4, and FIG. FIG. 4 is an enlarged side view of FIG. 4, FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.
The figure is an exploded perspective view. Explanation of symbols 1 ... Speaker device, 2,3 ... Decorative panel, 4 ... Speaker unit, 14,15 ... Speaker unit

Continuation of the front page (56) References JP-A-47-33618 (JP, A) JP-A-56-32898 (JP, A) Jitsuko 51-38353 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A speaker unit having two speaker units facing in mutually opposite directions, and two decorative panels facing each other in the plate thickness direction, the two decorative panels being at least in the axial direction of the speaker unit. A speaker device, characterized in that the portions that are biased to mutually opposite sides in a direction parallel to are arranged so as to face each other with the speaker portion sandwiched therebetween.