JPH0441837A - Acoustic member and its mounting structure - Google Patents

Abstract

PURPOSE:To shorten assemblying time, change arbitrarily acoustic characteristic of a room and prevent the occurrence of chattering sound, etc., by selecting a suitable surface member and a suitable structural member from respective groups of plural kinds of surface members and plural kinds of structural members, differing in acoustic characteristics, and incorporating both members. CONSTITUTION:Plural kinds of surface members 2, which are sound absorbing members made of cloth for sound wave transmission and plural kinds of structural members 3, which are packed with a sound absorbing member 6b, made of glass wool with acoustic characteristics in both plural kinds being different from each other, are produced and prepared. A suitable surface member 2 and a suitable structural member 3 are selected according to respective cases. The structural member 3 is first mounted to joining fixtures 8 fixed on interval supports 7 by means of clamping screws via nuts 9 and screw holes 3a in the structural member 3. Then the strike member 4 of the surface member 2 is pushed into the latch member 5 of the structual member 3, so that the surface member 2 is mounted on the structural member 3 so that an acoustic member 1 can be easily mounted to the joining fixtures 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to acoustic members such as sound absorbing plates, reflecting plates, and sound insulating plates used for interior wall materials of AV rooms and the like, and their mounting structures.

2. Description of the Related Art Conventionally, acoustic members used for controlling sound fields in AV rooms and halls are mainly constructed by combining sound absorbing materials and sound insulating materials.

Methods for installing acoustic materials on walls and ceilings include direct attachment methods and cross construction methods.

The above method will be explained below with reference to the drawings.

FIG. 7 shows a side sectional view showing the structure of the direct pasting method. In Fig. 7, 16 is a nail, 17 is an acoustic member with sound absorbing properties, 18 is a barb, 19 is a lightweight steel frame, and the acoustic member 17 is a nail directly attached to the slit surface of the barb 18 of the light steel frame 19. 16.

FIG. 8 is a perspective view showing the configuration of the cross construction method. In FIG. 8, 20 is an acoustic member having sound absorption characteristics;
Reference numeral 21 denotes a main par, and the acoustic members 20 are inserted into the main par 21 arranged in a grid pattern. This drop-in construction method has the advantage of shortening construction time.

Problems to be Solved by the Invention However, in the case of the direct pasting method, it takes time to prepare the groundwork to eliminate rough joints and unevenness, and it also takes a long time to install the work in the room to change the acoustic characteristics. There was a problem in that it was often difficult to renovate a part of the building because adhesive was used. In addition, in the cross construction method, since the acoustic member 20 is simply dropped into the main par 21 incorporated in a grid pattern, when a loud sound output is emitted from a speaker when used in a listening room, for example, the main par 21 and the acoustic member 20
There was a problem in that a chattering sound was generated at the contact part.

The present invention solves the above problems, and can change the acoustic characteristics of an AV room, can be installed in a short time, and can be installed in such a way that unnecessary sounds are not emitted from the parts even in loud noises. The present invention provides an acoustic member and a method for attaching the same, which can be firmly connected to the acoustic member.

Means for Solving the Problems In order to solve the above problems, the acoustic member of the present invention includes a surface member in which projecting claws projecting toward the back side are provided at each corner of a rectangular shape, and a surface member having the same rectangular shape as the surface member. an engaging concave member that can be freely engaged and detached from the protruding pawl, and a structural member provided at a position corresponding to the protruding pawl; Appropriate surface members and structural members are selected and assembled from among the plurality of types of structural members having different characteristics.

Further, in the mounting structure of the acoustic member of the present invention, the connecting members are arranged in parallel as a pair, a groove number extending in the longitudinal direction is formed in each connecting member, and a nut is fitted into the groove to attach the nut to the connecting member. The structural member is attached to the connecting member by screwing into the nut of the connecting member a fastening screw that is movable only in the longitudinal direction and is inserted through the location where the engaging concave member is provided, and the surface member is attached to the structural member. It is made by assembling.

Effect: Due to the configuration of the acoustic member described above, it is possible to easily obtain an acoustic member with acoustic characteristics suitable for each case, and furthermore, since the protruding claws of the surface member reliably engage with the engaging concave member of the structural member. Even in the presence of loud noises, this assembly of the surface member and the structural member does not generate unnecessary noise from the location.

Furthermore, with the acoustic member mounting structure, the structural member can be easily assembled to the connecting member in a short time by moving the nut to the fastening screw position and screwing the fastening screw into the nut through the structural member. Moreover, since the structural member and the connecting member are firmly fastened together using fastening screws and nuts, unnecessary noise will not be generated from the mounting of the acoustic member even in loud noises. Furthermore, since the surface members and structural members can be easily replaced even after construction and installation, the acoustic characteristics of the room can be changed arbitrarily and easily.

EXAMPLE Below, FIGS.
This will be explained with reference to the figures.

FIG. 1 is an exploded perspective view showing an acoustic member according to an embodiment of the present invention, FIG. 2 is a perspective view showing the acoustic member shown in FIG. 1 attached to a wall, and FIG. 3 is a perspective view showing the acoustic member shown in FIG. This is a sectional view showing a portion of how the acoustic member is attached to a wall surface. As shown in FIG. 1, the acoustic member 1 consists of a rectangular surface member 2 and a rectangular structural member 3, which is the same as this surface member 2, and these surface members 2 and structural members 3 are combined. It looks like this. At each corner of the surface member 2, a cylindrical strike member (protruding pawl) 4, which is divided into three cylindrical parts and protrudes toward the back side, is provided.

Also, a strike member 4 is provided at each corner of the structural member 3.
A screw hole 3a is formed at a position corresponding to
A latch member (engaging concave member) 5 that can be freely engaged with and detached from the strike member 4 is fitted into the screw head storage portion of a. The surface member 2 is attached to the structural member 3 via the strike member 4 and the latch member 5.

The structural member 3 is a box-shaped sound insulating body 6 made of plywood with a sound insulating sheet attached.
A sound absorbing material 6b is housed inside a. Further, in FIG. 2, reference numeral 7 denotes a plurality of wall studs arranged in the vertical direction, and the studs 7 are paired with connecting fittings 8 as connecting members that extend in the horizontal direction and support the acoustic member 1. Installed and framed in parallel. Although not shown, the connecting fittings 8 are fixed to the studs 7 with screws, for example. As shown in FIG. 3, the connecting fitting 8 is formed with a groove 8a extending in its longitudinal direction, and a plurality of square nuts 9 are fitted into the groove 8a. The nut 9 is configured to be movable only in the longitudinal direction of the coupling fitting 8 and not to move in the depth (back and forth) direction of the coupling fitting 8. A fastening screw 10 is attached to the corner of the structural member 3.
is inserted, and by screwing this fastening screw IO into the nut 9, the acoustic member 1 is supported by the connecting fitting 8.

In this embodiment, the acoustic member 1 is used as a sound absorbing member, and has a surface member (outer size: 900 x 450 x 15 mm).
mm) 2 is made of cloth that transmits sound waves,
Also, structural members (external dimensions 900 x 450 x 100-) 3
has a structure in which a sound absorbing material 6b made of glass wool is packed inside a sound insulator 6a to absorb sound waves, and the sound absorbing material 6b is 300 Hz.
With the above, an average sound absorption coefficient of 0.9 has been achieved.

When attaching the acoustic member 1 to the connecting fitting 8, first move the nut 9 along the groove 8a so that the position of the nut 9 matches the pitch of the fastening screws 10 for fastening the acoustic member, and then attach the structural member 3. Insert the fastening screw 10 into the screw hole 3a and screw it into the nut 9.

Thereafter, the strike member 4 of the surface member 2 is pushed into the latch member 5 of the structural member 3 to attach the surface member 2 to the structural member 3. In this way, the acoustic member 1 is sequentially attached to the connecting fitting 8.
While the structural member 3 can be easily attached, the structural member 3 is firmly connected to the connecting fitting 8 by the fastening bolt lO and the nut 9, and the surface member 2 is securely latched via the strike member 4 and the latch member 5. Therefore, unnecessary noise will not be generated from each mounting part even in loud noises.

Another embodiment of the present invention will be described below with reference to FIG.

FIG. 4 is an exploded perspective view showing the configuration of an acoustic member in another embodiment of the present invention. Note that the mounting structure between each member is the same as that in the above embodiment, so a description thereof will be omitted. Fourth
As shown in the figure, the component 3 has the same configuration as the above embodiment, but the surface member 11 is a semi-cylindrical reflector (radius 50-1 height 30 mm) that reflects sound waves. Nine are formed. Approximately 2
．． It is effective enough to reflect sound waves at frequencies above 4KHz.

Further, the shape of the reflector 11a may be any shape depending on the frequency to be reflected.

Other embodiments of the present invention will be described below with reference to FIGS. 5 and 6.

FIG. 5 is a perspective view showing the configuration of an acoustic member in another embodiment of the present invention, and FIG. 6 is a sectional view of the main part of the component. In this embodiment, the mounting structure between each member is the same as in the above embodiment. As shown in FIG. 5, the surface member 11 is the same as that of the embodiment shown in FIG. 4, but the structural member 12 is a sound insulating structure in which a sound insulating material 13 is installed. That is, the box-shaped sound insulator 6 has the same configuration as the above embodiment.
Inside a, sound absorbing materials 14 are arranged on both sides with an air layer 15 in between, and a sound insulating material 13 is arranged on the front side. In this embodiment, in order to achieve a transmission loss of 30 dB at 500 Hz, the interior of the structural member 12 has a double wall structure, but it may be configured with any sound insulation structure to obtain the desired transmission loss.

As can be seen from the above embodiments, the surface member 2.11 and the structural member 3. By combining materials having different acoustic characteristics with t2, an acoustic member 1 having desired acoustic characteristics can be obtained.

Effects of the Invention As described above, according to the acoustic member of the present invention, it is possible to easily obtain an acoustic member having arbitrary acoustic characteristics, and moreover, the surface member and the structural member are locked by the protruding pawl and the engaging concave member. This structure prevents unnecessary noise even in loud environments, and the surface member can be easily removed.
You can freely decorate it according to the interior of the room.

Furthermore, the acoustic member mounting structure of the present invention allows the acoustic member to be assembled to the connecting member in a short time, and the acoustic member can be easily replaced after assembly.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the configuration of an acoustic member in an embodiment of the present invention, FIG. 2 is a perspective view showing the state in which the acoustic member shown in FIG. 1 is attached to a wall, and FIG. 3 is the same as that shown in FIG. FIG. 4 is an exploded perspective view showing the configuration of the acoustic member in another embodiment of the present invention, and FIG. 5 is a partial cross-sectional view showing how the acoustic member shown in FIG. FIG. 6 is an exploded perspective view showing the structure of the acoustic member in another embodiment, and FIG. 6 is a sectional view of a main part showing the structure of the structural member shown in FIG. 7 and 8 are a side sectional view and a perspective view showing a conventional method of constructing an acoustic member. 1... Acoustic member, 2.11 Surface member, 3, 12...
Structural member, 4... Strike member (protruding claw), 5...
・Latch member (engaging concave member), 6a... Sound insulation body, 6
b. 14...Sound absorbing material, 8...Connection fitting, 8a...Groove, 9...Nut, 10...Fastening screw, lla...
Reflector, 13... Sound insulation material. Agent Yoshihiro Morimoto Diagram 1 No. 2 q-pu...I to No. 3 I concluded the fifth cause Roaring Hagi No. 4 fltl - Anti-fuselage first bad sound absorption Figure 7 Section g

Claims (1)

[Scope of Claims] 1. A surface member in which protruding claws protruding toward the back side are provided at each corner of a rectangular shape, and a surface member having the same rectangular shape as the surface member and capable of being freely engaged with and detached from the protruding claws. The engaging concave member is comprised of a structural member provided at a position corresponding to the protruding pawl, and is selected from a plurality of types of the surface member having different acoustic properties and a plurality of types of the structural member having different acoustic properties. An acoustic member made by selecting and assembling appropriate surface members and structural members. 2. A surface member in which protruding claws protruding toward the back side are provided at each corner of a rectangular shape, and an engaging concave member that has the same rectangular shape as this surface member and can be freely engaged with and detached from the protruding claws. A structure in which an acoustic member consisting of a structural member provided at a position corresponding to the protruding claw is attached to a connecting member, wherein the connecting members are arranged in parallel as a pair, and each connecting member has a groove extending in the longitudinal direction thereof. A nut is fitted into this groove so that the nut is movable only in the longitudinal direction of the connecting member, and a fastening screw inserted from the location where the engaging concave member is provided is screwed into the nut of the connecting member. A mounting structure for an acoustic member, wherein a structural member is attached to the connecting member, and the surface member is assembled to the structural member.