JPS6335959A - Wall surface structure having speaker - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wall structure equipped with a speaker, and more particularly, the present invention relates to a wall structure equipped with a speaker, and more specifically, a speaker is formed in the shape of a flash panel to constitute a part of the wall surface, and A decorative panel having the same shape as the flush panel-shaped speaker is provided, and the decorative panel and the flannel-shaped speaker are connected to form the wall surface of a stone shop.

Connector 4 Conventionally, in order to ensure the acoustic performance of a speaker, the speaker unit was housed in a box-like body with a large depth, making it difficult to house it inside a wall.

Therefore, in order to reduce the depth of the speaker unit so that it can be housed inside the wall, flat diaphragms are used instead of cones, and speakers are made thinner by changing the drive system. The diaphragm is made of aluminum and has to be fitted with a net on its surface, so it doesn't blend in with wall decorations, and the speakers can be used to decorate the wall. It was inconvenient to configure ≦.

OBJECT OF THE INVENTION The present invention has been made in view of the above-mentioned problems.The present invention has been made in view of the above-mentioned problems.The present invention has been made in such a way that the speaker is made thin so that it can be housed in a wall, and the surface of the speaker is shaped to harmonize with the wall surface. A decorative panel facing upward is installed and connected to the speaker.
To make it possible to configure a part of a wall surface with a speaker without making the speaker aware of its existence.

In order to achieve the above object, the present invention uses a wood board with a wood grain pattern as a surface plate of a speaker and a planar diaphragm installed in a partially cutout part of the surface plate, and the speaker is mounted on a part of a wall surface. By providing a decorative panel that is similar in appearance to the surface of the speaker and having a similar wood grain pattern, and by connecting the decorative panel and the speaker. By attaching decorative panels with a woodgrain pattern to the entire wall of the room, or by configuring a portion of the wall with decorative panels, the wall structure is such that the presence of the speaker is not recognized.

Specifically, a wood board with a wood pattern is attached to the surface of a frame having a shape of square cedar or other suitable shape, and a diaphragm made of a thin wood board is located in a part of the wood cup board that is cut out. A speaker in the form of a flush panel arranged in the following manner;
A decorative panel having the same or similar wood grain pattern and having approximately the same appearance as the speaker above is provided, and the Hokki speaker and the decorative panel are arranged in series to form at least a part of the wall surface. Wall surface with speakers +14? i.

Embodiment F1 The present invention will be explained in detail with reference to one embodiment shown in the drawings.

In FIGS. 1 and 2 showing the entire room, 1 is a flush panel-shaped speaker, 2 is a decorative panel, and the flush panel-shaped speakers 1.1 are arranged at both ends of the upper side of one side wall of the room R, A plurality of decorative panels 2 are arranged between these flush panel-shaped speakers 1.1, and the speakers 1 and decorative panels 2 are arranged in series to constitute the F side part of the wall surface.

In addition, a plurality of speaker terminals are provided to connect the speakers 1 and 2 to an amplifier (not shown), and these speaker terminals 3A
, 3B, and 3G are installed separately on other walls of room R as shown in the figure, so that the positions of the amplifiers can be moved freely and the layout of the room can be changed.

As shown in FIG. 3, the speaker 1 is built into an outer frame 4. That is, the outer frame 4 has rectangular frame members 4b placed on the surface of the flat substrate 4a at a predetermined distance from the edge.
is provided protrudingly, and the speaker 1 is tightly fitted into the frame member 4b.

At this time, as shown in FIGS. 4 and 5, the speaker 1
A built-in fitting 6 is fixed at a fixed interval to the outer end surface of one side of the frame 5, and a bearing cylinder portion 6a formed at the bent tip of the built-in fitting 6 is attached to the inner surface of the frame member 4b. 7, and as shown by the arrow in the figure, the speaker l is assembled into the frame member 4b by rotating the support shaft 7 as a fulcrum. Note that the speaker 1 and the outer frame 4 may be fixed with screws or the like.

As shown in FIGS. 2 and 6, the surface of the speaker I facing the space of the room R is provided with a wood board 9 having a wood grain pattern placed in the surface opening of the frame 5 of the speaker body. The planar diaphragm 10.11S of the speaker unit is placed in the three notches spaced apart below F in the center of the
2 are arranged, and these plane diaphragms 10.11.12
Since the wood grain pattern is formed from thin wood boards, the entire surface of the speaker I is made of wood with the wood grain pattern.

As shown in FIG. 2, the surface of the decorative panel 2 connected to the speaker 1 is formed so that its surface is larger in appearance than the surface of the speaker 1, and the unevenness and size of the surface of the speaker 1 are the same. ,
In addition, they are designed to be the same or similar to the speaker I (7) (7) (¥, similar to the speaker I (7)) so that it looks exactly the same as the speaker 1 or the decorative panel 2 from the room space side.

The structure of the speaker 1 is as shown in Figs. Notches 9a and 9b cut out in the wood board 9, which are attached so as to be able to vibrate;
9c, each plane diaphragm 10.11.
12 are arranged. Note that although the L frame 5 is made of aluminum and has a rectangular shape as shown in the figure, it goes without saying that it may be made of other suitable materials and of any suitable shape. A rod-shaped reinforcing plate 17 is attached to the inwardly turned edge 5a on the back side of the shoe frame 5.
is fixed, and the flat rigid plate 1 is attached to the back surface of the reinforcing plate 17.
3 is fixed 4, and the opening on the back side of the frame 5 is closed by the rigid plate 13.

The rigid plate I3 is removably fixed to the frame body 5 with screws or the like in consideration of internal inspection and the like. The rigid plate 13 works together with the frame body 5 to provide strength to the speaker and also prevents sound from passing through the rear surface, so a material that has this function is used. Particle board is used as the rigid plate 13 and the reinforcing plate 17.

Furthermore, when the speaker l is assembled into the outer frame 4, its board 4a
Since the rear surface of the speaker l is closed, it is not necessarily necessary to provide the rigid plate 13 and reinforcing plate 17 on the rear surface side if it is possible to sufficiently prevent the sound from passing through the substrate 4ah4.

On the front side of the frame 5, there is an edge 5b that is folded back inward.
and an L-shaped baffle plate holding arm 18 at a predetermined interval.
A holder 19 consisting of a gouge 11 having a U-shaped cross section is fitted into the gap between the arm I8 and the edge 5b. The peripheral edge of a l-plate-shaped wood board 9 is fitted into the holder 19, and the opening on the front side of the frame 5 is closed with the wood board 9.

Note that the holding member 419 may be used as long as it attaches the wooden board 9 to the frame body 5 so as to be able to vibrate, and a spring or the like may be used.

- The foot wood board 9 is made of a single wood board or a P7A board made of a single board, and is thinner and lighter than before.

In this way, the wooden board 9 is attached to the frame 5 via the rubber holder I9, and is thin and light, so that it can easily vibrate independently of the frame 5.
It is designed to act as a baffle board (acoustic board). As shown in FIG. 8, a reinforcing material 20 is placed on the back side of the wood
is fixed, but the reinforcing plate 20 is not necessarily required.

On the inner surface of the notches $9a and 9b19c of the wood board 9, there is a diaphragm l011 of the speaker unit 14.15.1G.
1 and I2 are installed as shown in FIG. Since these diaphragms 101If and 12 are made of thin wood plates, they are made of straight-grained material with a thickness of 1 to 2 mm (2 m rn in the embodiment), and the straight-grained surface is exposed on the surface. The thin wood board may be a veneer or plywood; plywood has higher rigidity and is less likely to break. Incidentally, instead of straight-grained wood, board-grained wood may be used, and the surface of the material may be exposed. The thin wood board mentioned above may be a softwood material such as Sitka spruce, which has excellent acoustic properties, or a hardwood material such as zelkova, which has a specific gravity of 0.
．． 25 to 0.8 is preferably used. In addition, in order to prevent these thin wood boards from warping, the OHJti (hydroxyl groups) in the wood are chemically treated, such as by etherification or esterification, and the thin wood boards are chemically modified.
-, there will be no expansion and contraction due to humidity, and no warping will occur. Furthermore, instead of the chemical modification mentioned above, if synthetic resin is injected into the surface layer of the thin wood board and treated with WPC, dimensional stability will be improved, humidity changes will be small, only warping will occur, and the appearance will be improved. There is an advantage that

In the WPC processing, a thin wood board is placed in a vacuum/pressure g8, and after the air inside the board is removed by vacuum, plastics such as polyester and polystyrene are injected under pressure.
It is preferable to absorb 30 to 40% of the electricity inside the wood and harden it with hardened sand. J-Foot Wood whose hydroxyl groups have been chemically treated and whose surface layer has been treated with synthetic resin are used not only for diaphragms 10, 11, and 12, but also for 1. It may also be used for the number 9 pieces of wood that act as baffle plates.

On the back side of the thin wood plate of each diaphragm l0111.12 above,
A honeycomb material 21 is attached with an adhesive at an interval of 1 to 2 n'l rn from the peripheral edge. The S4 honeycomb material 21 is made of aluminum honeycomb, which is lightweight and has high strength, and its thickness is set to 3 to 5 nm. Note that the 1γ thickness of the honeycomb 9 should not be made too large.
The above-mentioned thickness is preferable because -F is undesirable because it causes resonance, and if it is too small, the strength will be poor. As the honeycomb material 21, paper honeycomb or FI(I) honeycomb may be used instead of the aluminum honeycomb. A skin 22 made of the same material is adhered to the back side of the honeycomb material 21 with adhesive, and the skin 22 made of aluminum 11
When using honeycomb, an aluminum skin is used. The skin 22 works to improve the strength to some extent and to maintain the shape of the honeycomb material 21, but it is not necessary.
There is no need to provide one.

The honeycomb material 2 of the thin wood board of the diaphragm 10, It, +2
One end of a down-type edge material 23 is fixed with an adhesive to the peripheral edge of the back surface to which No. 1 is not attached. As shown in the figure, the down-type edge material 23 has a curved shape on the back side, and one end surface 23 protruding toward the front side is attached to the back side of the thin wood board, and the curved edge 23b is attached to the notch of the wood board 9. It is adhesively fixed between the back surface of the periphery and the frame 24 of the speaker unit, so that the surface of the diaphragm 101II, +2 does not protrude from the wood board 9 and forms a flat surface.

The above speaker unit for bass and midrange sounds 1.15
has the structure shown in FIG. That is, the above frame 2
A ferrite magnet 25 is attached to the back surface of 4 by adhesively sandwiching it between a metal plate 26 and a metal bottom 27. A gap S is provided between the inner circumferential surface and the outer circumferential surface of the hollow cylindrical portion 27a protruding from the center of the bottom 27. On the other hand, the diaphragm 10.
The upper end surface of an aluminum support 29 having a substantially quadrangular pyramid shape is adhered to the good surface of 11 through a reinforcing ring 28, and a coil winding frame 30 is adhesively fixed to the rear end of the support 29. A voice coil 31 is attached to the rear end of the coil winding frame 30, and the lower part of the voice coil attached is inserted into the gap S, and the voice coil 3I and the ferrite magnet 25 are connected. They are facing each other. Two malleable wires 32 for supplying audio signals are attached to the coil winding frame 30 and connected to terminals 33 attached to the plate 24. A cloth damper 34 is interposed between the outer peripheral surface of the coil winding frame and the inner peripheral surface of the frame 24.

A wooden speaker with the above structure! To explain the operation of the speaker unit! When the speaker units 14, 15, and 16 are driven to reproduce sound, an audio current signal flows from the molding 132 to the voice coil 31 in each speaker unit 14, 15, and 16, and the voice coil 31 and the coil winding frame 30 are activated in accordance with the signal. vibrates, and along with the vibration, the flat diaphragm 10.11 vibrates via the support 29, thereby reproducing sound. In this way, when the speaker units 14, 15 and 1G are driven, the diaphragms IO1+1, 12 vibrate and sound is reproduced,
The reproduced sound is radiated forward and backward, and the sound radiated backward is reflected by the rigid board 13 and reaches the wood board 9 on the front side.
The wooden board 9 is vibrated.

Since the wood board 9 is attached to the frame 5 via a holder 19 made of rubber, it can easily absorb vibrations 4 independently from the frame 5.
-ru. The wood board 9 is larger than the diaphragms 10-12, and has speaker units 14-16 attached thereto, so it resonates with sounds in the low frequency range and can reproduce low frequencies. Therefore, since it is a 3-way type speaker equipped with three speaker units I-1.1 to 16, it can provide the same effect as a 4-way speaker.

As is clear from the explanation by Takahi Ishikawa, according to the present invention, the speaker uses an east-facing moving plate to make it thin, allows it to be embedded in a wall, and the front side facing the room is made thin. It is composed of a wood board with a wood grain pattern and a flat diaphragm, so that it does not feel strange even when exposed on a wall surface, and a decorative panel with the same shape and pattern as the surface of the speaker is provided. Since the wall surface is constructed by connecting the speaker to the speaker, it has the following effects.

■Since the speakers can be embedded in the wall, the space in the room can be used more widely.

■Apparently, by connecting it with a similar decorative panel, the presence of the speaker can be made unrecognizable, so it is possible to configure a natural-looking sky 1 display.

■The wood on the surface of the speaker ÷ O Since a one-section plane diaphragm is placed, the plane diaphragm acts as an accent of the decorative ball on the wall, and the shape, position, size, etc. of the plane diaphragm is By selecting it appropriately, it is possible to give a novel impression that has not been seen before, and the design effect becomes excellent.

■Since the speakers can be installed high on the wall, the sound can be heard evenly from any position in the space without any sound barriers such as furniture.

■In the structure of the speaker itself, the wooden board that was conventionally fixed to the front side of the frame was attached to the frame so that it could vibrate, and by using a thin and lightweight material, the reflection from the rigid plate on the back side was improved. By actively vibrating the sound and the reflected sound inside the speaker, it can act as a baffle plate, especially a sound plate in the low frequency range. From this point of view, the smaller the depth of the speaker, the more the sound can be reproduced without any distortion.

Therefore, in addition to using a flat diaphragm as the diaphragm of the speaker unit, the depth of the speaker can be reduced, and the speaker can be installed embedded in a thin wall without protruding. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a horizontal sectional view of a room equipped with a speaker according to an embodiment of the present invention on the wall, FIG. 2 is a perspective view of the main part of the room in FIG. 1, and FIG. 3 is a perspective view of the speaker and the outer frame. Fig. 4 is a schematic diagram showing how to incorporate the speaker into the outer frame, Fig. 5 is a perspective view showing the fittings for assembly, Fig. 6 is a front view of the speaker, and Fig. 7 is shown in Fig. 6. 8 is a back view of the wood board, and FIG. 9 is a sectional view of the speaker unit. I... Speaker 2... Decorative panel 3Δ, 3r3,
3G...Speaker terminal 4...Outer frame 5...Frame body 6...Installed metal fittings 9...Wood board 10, + 1. + 2...East diaphragm 11.15
．． 16...Speaker unit It...Room Patent applicant: Chubu Corn Seisakusho Co., Ltd. (1 person) Representative Patent attorney: Mr. Maeda and 2 others Figure 6 Flow 19 16

Claims (2)

[Claims] (1) A flash panel in which a wood board with a wood grain pattern is attached to the surface of a frame having a rectangular or other appropriate shape, and a diaphragm made of a thin wood board is located in the cutout part of the wood board. a speaker having a shape similar to that of the speaker, and a decorative panel having approximately the same thickness and size as the speaker, having the same or similar wood grain pattern, and having approximately the same apparent shape as the speaker; What is claimed is: 1. A wall structure comprising a speaker, characterized in that the speakers are arranged in series to form at least a part of the wall surface. (2) A wall structure equipped with a speaker, characterized in that the wooden board on the surface of the speaker according to claim (1) is attached to a frame so as to be able to vibrate, thereby forming a baffle plate.