JP3497928B2 - Sound absorbing wall structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound absorbing wall structure using a sound absorbing wall plate. 2. Description of the Related Art Conventionally, sound absorbing panels having sound absorbing characteristics have been used as interior materials for buildings and the like. As this sound absorbing panel, a panel using a porous material or a panel using a sound absorbing material made of cotton-like soft fiber such as glass wool is known. Among them, when a sound absorbing material using soft fibers such as glass wool is used for a wall, the rigidity of the glass wool alone is low, and the shape retention as a wall material is poor as it is. For this reason, if such a sound-absorbing material is applied to a wall material as it is, there is a concern that wrinkles or the like may occur or the wall may be loosened. It is necessary to take measures to ensure the nature. A sound absorbing panel using a metal casing material as shown in FIG. 7, for example, is known as the reinforcing material (Japanese Utility Model Publication No. 61-20640). This is because, on the surface of a fibrous sound absorbing plate 51 formed by compressing and shaping fibers such as glass wool and rock wool into a rectangular shape, an aluminum expanded metal 52 having a slightly larger area than the sound absorbing plate 51 is formed.
And the four sides 52a of the expanded metal 52 protruding outside of the sound absorbing plate 51 are wrapped around the four edges 51a of the sound absorbing plate 51 and the back surface of the sound absorbing plate 51 and the front surface of the sound absorbing plate 51. Is bent in a state where a tensile force is applied to a portion covering the. In addition, there is a type in which a mat-shaped sound absorbing material using glass wool or the like is perforated, and the sound absorbing material is attached to a wall surface by using a metal fitting which is fixed to the hole in a thickness direction of the sound absorbing material by a sandwich method. [0004] A sound-absorbing panel in which glass wool or the like is pressed or stuck on a casing material using the above-mentioned metal casing material requires time and effort for mounting the casing material. Since the casing material has a structure for supporting the peripheral portion of the sound absorbing panel, reinforcement near the center portion is insufficient, and there is a possibility that wrinkles or the like may occur. In addition, in the case of a method in which a mat-shaped sound absorbing material is fastened by a sandwich method using metal fittings or the like, in addition to the problem of aesthetics, glass wool is poor in rigidity, so this is used for standing panels such as walls. When used, there is a problem that the panel may be loosened. The present invention has been made in view of the above problems, and has as its object to provide a sound absorbing wall structure using a sound absorbing wall plate that has excellent sound absorbing properties and has no looseness or the like. In order to solve the above technical problems, a sound absorbing wall structure according to the present invention comprises a sound absorbing plate 1 made of a soft fiber system, and a hole attached to the surface of the sound absorbing plate 1. A perforated plate 2, a hook-shaped portion for engaging with the perforated plate 2, and a base 3b penetrating the sound absorbing plate 1; a hook-shaped pin 3 having a projection 3c provided on the base 3b; The through hole 4a of the support plate 4 is fitted and locked to the position of the protrusion 3c of the base of the hook-shaped pin 3 protruding from the sound absorbing plate 1 and the protrusion of the base is formed. And the support plate 4 is fixed to the sound absorbing plate 1, and the sound absorbing plate 1 is attached to the perforated plate 2.
And the support members 22 and 26 erected so that a predetermined height can be adjusted from the wall slab 21.
And two frame members 3 attached to the support members 22 and 26 and having a flange for holding the end of the sound absorbing wall plate 10.
1 and 33, and an insert material 36 that covers the mounting portion where the two body members 31 and 33 are overlapped. The sound absorbing plate 1 is formed by processing a soft fiber such as glass wool into a plate shape having sound absorbing characteristics. The perforated plate 2 is, for example, an expanded metal made of metal or a plate having many holes. Perforated metal or mesh panels with steel wires assembled vertically and horizontally are used, and these perforated plates 2 have a large aperture ratio, which is the ratio of the area of the holes to the total area of the perforated plates 2. The more the sound absorbing coefficient of the sound absorbing plate 1 is improved, the better. According to the sound absorbing wall structure, sound is not reflected by the perforated plate 2 and the sound absorbing plate 1 absorbs a large amount of sound. By the air layer 30 formed between the air layer 30 and the wall slab 21, the sound absorption coefficient in a predetermined sound range based on the thickness of the air layer 30 is increased. DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a sound absorbing wall plate and a sound absorbing wall structure using the same according to the present invention will be described below with reference to the drawings. FIG. 1 shows the above-described sound-absorbing wall plate 10, which is used for a wall plate of a building or the like to prevent noise or the like. The sound absorbing wall plate 10 is made of a soft fiber such as glass wool and has a sound absorbing effect, a metal (aluminum or the like) expanded metal 2 as a perforated plate to be covered on the surface of the sound absorbing plate 1, and an expanded metal. 2 has a hook-shaped pin 3 and a support plate 4 for attaching the sound absorbing plate 2 to the sound absorbing plate 1. The sound absorbing plate 1 is made of a soft fiber such as glass fiber or rock wool and has flexibility, and is processed into a plate shape while maintaining sound absorbing characteristics. A moisture-permeable waterproof film material 5 is adhered to the surface, which gives a beautiful appearance to the wall surface and protects the surface of the sound absorbing plate 1. As a substitute for the expanded metal 2, a metal (aluminum or the like) punching metal or a mesh panel having a large aperture ratio is used. FIG. 2 is an exploded view of the sound-absorbing wall plate 10, which is combined with a hook-shaped pin 3, expanded metal 2, a moisture-permeable waterproof film material 5, a sound-absorbing plate 1, and a support plate 4 in this order. FIG. 3 shows the hook pin 3.
The hook-shaped pin 3 is composed of a hook-shaped portion 3a to be locked to the expanded metal 2, a base 3b penetrating the sound absorbing plate 1, and a projection 3c provided in the middle of the base 3b. Each tip is pointed. The support plate 4 is formed of a circular plate, and has a through hole 4a in a substantially central portion into which the base 3b of the hook-shaped pin 3 is fitted. The projecting portion 3c of the hook-shaped pin 3 is such that the peripheral edge of the through hole 4a of the support plate 4 is stopped by being stopped by this. The projecting portion 3 is such that the support plate 4 just comes into contact with the back surface of the sound absorbing plate 1. Position. When assembling the sound-absorbing wall plate 10, a moisture-permeable waterproof film material 5 is attached to the surface of the sound-absorbing plate 1.
The expanded metal 2 is covered from above, and the base 3b of the hook-shaped pin 3 is further placed on the expanded metal 2.
Is inserted into the sound absorbing plate 1, and the hook-shaped portion 3 a of the hook-shaped pin 3 is hooked to the intersection of the bones of the expanded metal 2 and locked. At this time, the tip of the hook portion 3a of the hook pin 3 is pierced by the moisture-permeable waterproof film member 5 and the sound absorbing plate 1. On the other hand, on the back surface of the sound absorbing plate 1, the support plate 4 is fitted into the base 3 b of the hook-shaped pin 3 penetrating the sound absorbing plate 1, which stops at the position of the projection 3 c of the hook-shaped pin 3. At this position, the projecting portion of the base 3b is bent at a substantially right angle, and the support plate 4 is fixed to the back surface of the sound absorbing plate 1. In this manner, the hook-shaped pins 3 are attached at several places to
Finish. FIG. 4 shows another embodiment of the hook-shaped pin. The hook-shaped coupling pin 6 has a hook-shaped portion 6a for locking to the expanded metal 2 and a base 6b to be inserted into the sound absorbing plate 1. A ring-shaped step 6c is formed at the tip of the base 6b. I have. On the other hand, the hook-shaped coupling pin 6 is used integrally with a stopper 7, and the stopper 7 is a fitting portion having a disk portion 7a and a ring-shaped step portion provided in the cylinder from substantially the center of the disk portion 7a. 7b is formed to protrude. The fitting portion 7b is fitted with the step 6c of the hook-shaped coupling pin 6, but after the fitting, the ring-shaped steps are locked to each other so as not to come off. The sound absorbing wall plate 10 is formed by using the hook-shaped connecting pins 6.
When assembling, a hook 7 is used instead of bending the base 3b of the hook-shaped pin 3, and the hook-shaped coupling pin 6 is used.
The fitting 7b of the stopper 7 is fitted into the step 6c, and the stopper 7 is fixed to the back surface of the sound absorbing plate 1. Therefore, according to the above embodiment, even if the sound absorbing plate 1 integrated with the expanded metal 2 is vertically arranged as a wall material, the sound absorbing plate 1 is supported by the expanded metal 2 and weighted by the sound absorbing plate 1 itself. The sound absorbing plate 1 is prevented from being lifted, displaced or wrinkled without being loosened. For this reason, the sound-absorbing wall plate 10 using the sound-absorbing plate 1 can be used as a wall material, and a soft fiber-based sound absorbing material having a high sound absorption coefficient can be provided. Even when the sound-absorbing wall plate 10 is used for an indoor wall of a building, the wall surface is fixed in a state where the hook-shaped pin 3 is fused to the expanded metal 2, so that the fixing portion is not noticeable. There is no loss of design. Here, the sound absorbing wall structure according to the embodiment will be described. The sound absorbing wall plate 10 used in this sound absorbing wall structure uses an expanded metal 20 made of aluminum. This sound absorbing wall structure uses an L-shaped base fitting 22 and an L-shaped fitting 26 as supports as shown in FIG.
The L-shaped fitting 26 has a panel fixing fitting 31 as a frame material.
And the grid member 33 is fixed, and the sound absorbing plate wall 10 is attached thereto. The L-shaped base member 22 has a long hole 29 in the direction parallel to the wall slab 21, while the L-shaped member 26 has a long hole 27 in the vertical direction to the wall slab 21. . This L-shaped base bracket 22 is an anchor bolt 23
Is fixed to the wall slab 21 of the building by using the L-shaped fitting 26 with the bolt 25. In this case, by loosening the bolt 25, the L-shaped bracket 26 can be adjusted in height and moved in parallel with the surface of the wall slab 21. The panel fixing bracket 31 is a long material having a hat-shaped cross section and having a base 31a and flanges 31b and 31c extending on both sides with a step difference from the base 31a.
The grid member 33 is a long material having a hat-shaped cross section, and includes a base 33a, rising portions 33b and 33c rising from both sides of the base 33a, and rising portions 33b and 3c.
Pressing portions 33d, 33e bent outward at right angles from 3c
have. The base 33a of the grid member 33
Is fitted into the base 31a of the panel fixing bracket 31, and is fixed to the L-shaped bracket 26 using the bolt 28 in this state. The back side of the sound-absorbing wall plate 10 has the panel fixing bracket 3.
1 while being supported by the flange portions 31b and 31c.
The surface 0 is restrained and held by the holding portion 33c of the grid member 33. On the wall slab 21 of the building, the panel fixing members 31 are disposed and fixed in the horizontal and vertical directions, and the sound absorbing wall plate is placed in each rectangular frame formed of the panel fixing members 31 formed in this manner. Then, a grid member 33 is attached around the inside of the rectangular frame, and the peripheral edge of the sound absorbing wall plate 10 is pressed and fixed to the panel fixing bracket 31. A groove 35 formed by the base 33a and the rising portions 33b and 33c of the grid material 33 is fitted with an insert material 36 made of a vinyl chloride resin, and covers the bolt 28 and the like. As described above, the sound absorbing wall plate 10
Lay. In this state, an air layer 30 is formed between the back surface of the sound absorbing wall plate 10 and the surface of the wall slab 21, and the thickness of the air layer 30 is changed by adjusting the height of the L-shaped bracket 26. The rim composed of the panel fixing bracket 31 and the grid member 33 integrally supports the expanded metal 20 and the sound absorbing plate 1 forming the sound absorbing wall plate 10, and such a rim is used. Alternatively, only the expanded metal 20 of the sound absorbing wall plate 10 may be fixed. Therefore, according to the above sound absorbing wall structure, the air layer 30 is provided between the sound absorbing wall plate 10 and the wall slab 21. A good sound absorption characteristic is obtained. Also,
Since the sound absorbing plate 1 is attached using the grid material 33 having a hat-shaped cross section, the groove 35 of the grid material 33 is attached.
Prevents flutter echoes and improves sound absorption characteristics. Further, when laying the wall, the work is completed only by fixing the sound absorbing wall plate 10 in which the sound absorbing plate 1 and the expanded metal 20 are integrated with the grid material 33, and the construction work is simple. As described above, according to the sound-absorbing wall structure according to the present invention, a sound-absorbing plate made of a soft fiber system, a perforated plate, a hook-shaped pin having a base provided with a projection, and a bearing. A sound-absorbing wall plate consisting of a plate, a supporter standing upright from the wall slab so as to be adjustable in height, and an insert material for covering a mounting portion in which a body edge material for holding an end of the sound-absorbing wall plate is superimposed. Since the sound absorbing plate is not slackened, the mounting position of the support plate is uniform, and the hook pin can be bent accurately.
Furthermore, there is an effect that a sound absorbing wall structure having an excellent sound absorbing effect can be provided by an air layer between the wall slab and the air layer. ## EQU1 ##

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front perspective view (a) and a rear perspective view (b) of a sound absorbing wall plate according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the sound absorbing wall plate according to the embodiment. FIG. 3 is a view showing a hook pin (a) and a support plate (b). FIG. 4 is a view showing a hook-shaped coupling pin and a stopper. FIG. 5 is a cross-sectional view of the sound absorbing wall structure according to the embodiment of the present invention. FIG. 6 is a perspective view of a sound absorbing wall structure. 7A and 7B are a cross-sectional view and a plan view of a sound absorbing panel according to a conventional example. [Description of Signs] 1 sound-absorbing plate 2 perforated plate 3 hook-shaped pin 4 support plate 6 hook-shaped coupling pin 7 stopper 10 sound-absorbing wall plate

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/86 E04B 1/82 G10K 11/172 F16B 5/00 F16B 5/06

Claims (1)

(57) [Claims 1] A sound-absorbing plate made of a soft fiber , a perforated plate attached to the surface of the sound-absorbing plate , a hook-shaped portion to be locked on the perforated plate, and the sound-absorbing plate. It has a base portion which penetrates, this group
Hooked pin which projections are provided on the parts, and consists of a support plate having a hole, fitting the through hole of the support plate to the position of the protruding portions of the base portion of the hook-shaped pin projecting from said sound absorbing plate Get in
Sound absorption formed by bending the protruding part of the base, fixing the support plate to the sound absorbing plate, and attaching the sound absorbing plate to the perforated plate
A wall plate and a supporter that stands upright from a wall slab so that a predetermined height can be adjusted.
And attached to the support , and hold the end of the sound absorbing wall plate.
Insert having two flanges having flanges and a mounting portion where the two flanges are overlapped
Sound absorbing wall structure, wherein the timber, in that it consists of.