JP6905461B2 - Installation structure of sound insulation cover, sound insulation device, wiring equipment and method of installing wiring equipment - Google Patents

Description

The present invention relates to a sound insulation cover for a wiring device to be installed in a through hole formed in a wall material, a sound insulating device, an installation structure of the wiring device, and a method of installing the wiring device.

Generally, when wiring equipment such as an outlet or a switch is installed on the wall material of a building, a through hole is formed in the wall material, and the wiring equipment is arranged so as to face the wall surface through the wall material. Wiring is placed in the space behind the wall. Then, in order to suppress sound leakage through the through hole of the wall material, it is necessary to take sound insulation measures so as to close the through hole.

For example, Patent Document 1 discloses a sound insulation cover installed on the back of a wall so as to cover a through hole formed in the wall material. Hereinafter, in the paragraph, the reference numerals of Patent Document 1 are shown in parentheses. The sound insulation cover (20) includes a cover body (21) formed in a bottomed box shape having an opening (20a) on one surface. The cover body (21) is entirely made of high-hardness rubber and has an accommodating portion (24) for accommodating the wiring box (11) installed behind the wall. Further, the base end of the flange (26) is integrally formed with the open end of the cover body (21). The flange (26) is formed so as to extend outward from the cover main body (21) from the entire circumference of the opening (20a), and the front surface of the flange (26) is the opening surface (H2) of the cover main body (21). ) Located on. Further, a fixing portion (31) is attached to one of the peripheral walls (23) of the cover body (21) by a mounting screw (32). To install the sound insulation cover (20) and the wiring box (11) on the back of the wall and construct the installation structure of the wiring fixture (42) on the wall (W), in both fixing holes (31a) of the fixing portion (31). The sound insulation cover (20) is fixed to the lightweight steel material (P) by inserting the fixing screw (33) and forcibly screwing the fixing screw (33) into the lightweight steel material (P). Then, the wiring box (11) is accommodated in the accommodating portion (24) of the cover main body (21). At this time, the flange (26) of the sound insulation cover (20) is tilted so as to extend away from the bottom (22). Next, the wall material (Wa) is erected so as to sandwich the lightweight shaped steel material (P). Then, the back surface of the wall material (Wa) comes into contact with the flange (26), and the flange (26) presses against the back surface of the wall material (Wa) in an attempt to return to the original shape. As a result, in the wiring box (11), the entire outer surface of the protrusion toward the back side of the wall is covered by the cover body (21). Then, the wiring box (11) installed on the back side of the wall material (Wa) is detected, the wall material (Wa) is cut off using a cutting tool (not shown), and a through hole (Wa) is formed in the wall material (Wa). Wb) is formed, and the wiring box (11) is made to face the front side of the wall. After that, the wiring device (42) is held by the holding frame (43) and attached to the wiring box (11), and the wiring device (42) is housed in the wiring box (11) so that the wiring device (42) becomes a wall. It is installed in (W).

Japanese Unexamined Patent Publication No. 2014-209822

In the conventional method of installing wiring equipment as in Patent Document 1, the sound insulation cover can be installed on the back of the wall by erection of the wall material after being fixed to the studs (lightweight shaped steel material). Therefore, it has been difficult to newly install a sound insulation cover in a building in which a wall material has already been erected. Further, in the sound insulation cover of Patent Document 1, the through hole is closed by pressure contacting the flange when the wall material is erected. However, a slight construction deviation tends to cause a gap between the flange and the back surface of the wall. Therefore, in order to ensure that the entire peripheral surface of the flange is pressed against the back surface of the wall, it is essential to eliminate the misalignment of the wall material and through holes during construction. It is also a problem that caution is required and construction takes time and effort.

The present invention has been made to solve the above problems, and an object of the present invention is that it can be installed on a wall material in which a through hole is formed and that the through hole can be closed more reliably. The purpose of the present invention is to provide an installation structure of a sound insulation cover, a sound insulation device, a wiring device, and a method of installing the wiring device.

The sound insulation cover according to claim 1 accommodates a wiring fixture fixture for fixing a wiring fixture through a through hole formed in a wall material in the back of the wall, and closes the through hole in the back of the wall. It is a sound insulation cover installed in
It has a cover body formed in a bottomed box shape with a bottom wall and side walls made of sound insulating material.
The cover body
An opening that opens on the front surface facing the bottom wall, an accommodating portion for accommodating the wiring fixture fixture, and the accommodating portion.
An abutting portion that extends along the outer circumference of the opening and abuts on the back surface of the wall on the front surface.
When the wiring device is fixed to the wiring device fixing tool, the wiring device and the holding portion sandwiched by the wiring device fixing tool together with the wall material are provided.

The sound insulation cover according to claim 2 is the sound insulation cover according to claim 1, wherein the contact portion includes a sticking portion to be attached to the back of the wall.

The sound insulation cover according to claim 3 is the sound insulation cover according to claim 1 or 2, wherein the cover main body is formed so as to be compressible and deformable so as to pass through the through hole.

The sound insulation cover according to claim 4 is the sound insulation cover according to any one of claims 1 to 3, wherein the cover body is made of an elastic material.

The sound insulation cover according to claim 5 is the sound insulation cover according to claim 3 or 4, wherein the side wall of the cover body has a bellows shape in which peaks and valleys are alternately continuous. do.

The sound insulation cover according to claim 6 is the sound insulation cover according to any one of claims 1 to 5, wherein the bottom wall of the cover body is thicker than the side wall.

The sound insulation cover according to claim 7 is the sound insulation cover according to any one of claims 1 to 6, wherein the contact portion and / or the sandwiched portion has an opening into which the wiring device can be inserted. It is characterized by being composed of a frame member made of a hard material.

The sound insulation cover according to claim 8 is the sound insulation cover according to any one of claims 1 to 7, further comprising a sound absorbing member made of a foamable material arranged in the cover main body. ..

The sound insulation device according to claim 9 is a sound insulation device that fixes a wiring device to the wall surface through a through hole formed in a wall material and is installed on the back of the wall so as to close the through hole. ,
The sound insulation cover according to any one of claims 1 to 8.
It is characterized by including a fixing portion for fixing the wiring device, and a wiring device fixing tool arranged from the wall surface to the back of the wall through the through hole.

The installation structure of the wiring device according to claim 10 includes a wall material having a wall surface and a wall back surface in which a through hole is formed, and a wall material.
The sound insulation cover according to any one of claims 1 to 8 installed on the back of the wall,
A wiring fixture fixture housed in the accommodating portion of the sound insulation cover and installed so that the fixing portion faces the wall surface through the through hole.
The wiring fixture fixed to the wiring fixture fixture is provided.
The wiring fixture and the wiring fixture fixture sandwich the sandwiched portion of the sound insulation cover together with the wall material in a state where the contact portion on the front surface of the cover body of the sound insulation cover is in contact with the peripheral edge of the through hole on the back surface of the wall. It is characterized by doing.

The method according to claim 11 is a method of installing a wiring device through a through hole formed in a wall material.
A step of arranging a sound insulating cover having a bottom wall and a side wall formed of a sound insulating material and having a bottom wall and a side wall formed in a bottomed box shape from the wall surface to the back of the wall through the through hole.
A step of accommodating the wiring fixture fixture for fixing the wiring fixture in the accommodating portion of the cover body, and
In a state where the contact portion surrounding the opening on the front surface of the cover body is brought into contact with the peripheral edge of the through hole on the back surface of the wall, the sandwiched portion of the cover body is held together with the wall material by the wiring device and the wiring device fixing tool. It is characterized by including a step of fixing the wiring device to the wiring device fixing tool so as to be sandwiched.

According to the sound insulation cover according to claim 1, the cover main body is provided with a contact portion extending along the outer periphery of the opening thereof and abutting against the back surface of the wall on the front surface of the cover main body, and a wiring device and a wiring device fixing tool. A sandwiched portion that is sandwiched together with the wall material is provided. That is, the cover main body is arranged on the back of the wall through the through hole formed in the wall material, the wiring fixture fixture is housed in the accommodating portion of the cover main body, and the abutting portion is brought into contact with the back surface of the wall and is sandwiched. By sandwiching the portion together with the wall material by the wiring fixture and the wiring fixture fixing tool, the sound insulation cover can be easily installed on the back of the wall in a state where the through hole is more reliably closed. Therefore, the sound insulation cover of the present invention makes it possible to more easily and surely form a sound insulation structure with respect to a wall material erected in advance.

According to the second aspect of the sound insulation cover, in addition to the effect of the invention of the first aspect, the sound insulation cover can be temporarily held on the back surface of the wall by attaching the contact portion to the back surface of the wall by the attachment portion. can. This improves the ease of construction in the installation work of the sound insulation cover.

According to the sound insulation cover according to claim 3, in addition to the effect of the invention of claim 1 or 2, the sound insulation cover is compressed by compressing the cover body in the front-rear direction (the depth direction of the through hole at the time of installation). It can be easily placed behind the wall through the through hole.

According to the fourth aspect of the sound insulation cover, in addition to the effect of the invention of the third aspect, the cover body is made of an elastic material, so that the through hole is relatively small with respect to the size of the sound insulation cover. , The cover body can be forcibly deformed to pass through the through hole.

According to the sound insulation cover according to claim 5, in addition to the effect of the invention of claim 3 or 4, the side wall of the cover body can be freely expanded and contracted and deformed in the height direction by the bellows shape. With a simple structure, the cover body can be easily expanded and contracted in the front-back direction.

According to the sixth aspect of the sound insulation cover, in addition to the effect of the invention according to any one of the first to fifth aspects, the bottom wall of the cover body facing the front side of the through hole is made relatively thick. With a large amount of sound insulation material, the sound insulation effect can be exhibited more efficiently.

According to the sound insulation cover according to claim 7, in addition to the effect of the invention according to any one of claims 1 to 6, wiring is performed with a stronger force by using a hard material for the contact portion and / or the sandwiched portion. It is possible to pinch with the fixture and the wiring fixture fixture.

According to the sound insulating cover according to claim 8, in addition to the effect of the invention according to any one of claims 1 to 7, a sound absorbing member made of a foamable material is provided on the cover body to exhibit higher sound absorbing performance. It becomes possible.

According to the sound insulation device according to claim 9, the wiring device is fixed to the wiring device fixture arranged on the back of the wall while exhibiting the effect of the invention according to any one of claims 1 to 8 as the sound insulation device. It is possible to construct an installation structure of wiring equipment on the wall material.

According to the installation structure of the wiring device according to claim 10, while exhibiting the effect of the invention according to any one of claims 1 to 8, the through hole is closed more easily and surely, and stable sound insulation is exhibited. It is possible.

According to the method of installing the wiring device according to claim 11, the cover main body is arranged on the back of the wall through the through hole formed in the wall material, and the wiring device fixing tool is housed in the accommodating portion of the cover main body. The sound insulation cover is placed on the wall in a state where the through hole is more reliably closed by bringing the abutting portion into contact with the peripheral edge of the through hole on the back surface of the wall and sandwiching the sandwiched portion together with the wall material by the wiring fixture and the wiring fixture fixture. It can be installed more easily on the back. In particular, since the wiring fixture can be fixed to the wiring fixture fixture and at the same time the sound insulation cover can be fixed to the back of the wall with the through hole securely closed, the installation work of the wiring fixture can be expedited. Therefore, the method of the present invention makes it possible to more easily and surely construct an installation structure of a wiring fixture with sound insulation measures on a wall material that has been erected in advance.

An exploded perspective view of a sound insulation device according to an embodiment of the present invention. (A) A schematic perspective view seen from the front surface and (b) a schematic perspective view seen from the rear surface of the sound insulation cover of the sound insulation device of FIG. 2 (a) plan view, (b) front view, (c) side view and (d) rear view of the sound insulation cover of FIG. A cross-sectional view taken along the line AA of the sound insulation cover of FIG. (A) A schematic perspective view seen from the front surface and (b) a schematic perspective view seen from the rear surface of the wiring fixture fixture of the sound insulation device of FIG. (A) front view, (b) side view, and (c) plan view of the wiring fixture fixture of FIG. BB sectional view of the wiring fixture fixture of FIG. FIG. 6 is a schematic cross-sectional view of an installation structure of a wiring device according to an embodiment of the present invention. An exploded perspective view of the installation structure of FIG. The schematic diagram which shows the process of arranging the sound insulation cover from the wall surface to the back of a wall through a through hole in the method of installing a wiring instrument through a through hole formed in a wall material. FIG. 6 is a schematic view showing a process of accommodating a wiring fixture fixture in a housing portion of a cover body in a method of installing a wiring fixture through a through hole formed in a wall material. FIG. 6 is a schematic view showing a process of fixing a wiring device to a wiring device fixture in a method of installing a wiring device through a through hole formed in a wall material. FIG. 6 is a schematic cross-sectional view of an installation structure of a wiring device according to another embodiment of the present invention. The schematic diagram which shows the sound insulation cover of another embodiment of this invention. The schematic diagram which shows the sound insulation cover of another embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The shapes of the figures referred to in the following description are conceptual diagrams or schematic views for explaining suitable shape dimensions, and the dimensional ratios and the like do not always match the actual dimensional ratios. That is, the present invention is not limited to the dimensional ratio in the drawings.

The sound insulation cover 110 of the present embodiment seals the through hole 12 when the wiring fixture fixture 120 and the wiring fixture 13 are installed in the wall material 11 through the through hole 12 formed in the wall material 11 constituting the hollow wall. It is used to stop and prevent deterioration of sound insulation. Further, the sound insulation device 100 of the present embodiment is a device composed of a sound insulation cover 110 and a wiring device fixture 120, and is a device for installing the wiring device 13 in the wall material 11 via the through hole 12. Further, the installation structure 10 of the present embodiment is a structure in which the wiring fixture 10 is installed on the wall material 11 by the wiring device 100 (sound insulation cover 110 and wiring fixture fixture 120) of the present embodiment.

FIG. 1 is an exploded perspective view of the sound insulation device 100 of the present embodiment. As shown in FIG. 1, the sound insulation device 100 is arranged in a sound insulation cover 110 installed on the back of the wall so as to close the through hole 12 and in the sound insulation cover 110 on the back of the wall from the wall surface via the through hole 12. A wiring fixture fixture 120 for fixing the wiring fixture 13 is provided on the wall surface.

First, the configuration of the sound insulation cover 110 of the present embodiment will be described with reference to FIGS. 2 to 4. 2 (a) and 2 (b) are schematic perspective views of the sound insulation cover 110. 3A to 3D are a plan view, a front view, a side view, and a rear view of the sound insulation cover 110. FIG. 4 is a cross-sectional view taken along the line AA of the sound insulation cover 110.

The sound insulation cover 110 of the present embodiment includes a cover body 111 formed in the shape of a bottomed box opened on the front surface by a sound insulation material. The cover body 111 has a substantially rectangular flat plate-shaped bottom wall 111a that defines the rear surface, side walls 111b that are erected on the front side from the four sides of the bottom wall 111, and all side walls 111b that project inward from the front ends with a predetermined length. It is integrally configured with the flange 111c. Each side wall 111b has a bellows shape in which a plurality of pairs of peaks and valleys are alternately continuous. In the present embodiment, the side wall 111b is formed with two pairs of peaks and valleys. By deforming the side wall 111b of the bellows structure in the height (erection) direction, the cover body 111 can be expanded and contracted back and forth. Further, in the present embodiment, the bottom wall 111a of the cover body 111 is formed thicker than the side wall 111b. As a result, the relatively thick bottom wall 111a effectively insulates the sound propagating in the front direction of the wall material 11, and the relatively thin side wall 111b ensures high elasticity of the cover body 111. In the present embodiment, the thickness of the bottom wall 111a is 2 mm, and the thickness of the side wall 111b and the flange 111c is 1 mm. In order to realize the improvement of the sound insulation performance for the sound propagating in the front-rear direction, the thickness of the bottom wall is preferably about 1.5 times or more the thickness of the side wall. When the cable is wired so as to pass through the bottom wall 111a, the bottom wall 111a can be cut by a cutter or the like. Further, the thickness of the sound insulation cover 110 can be arbitrarily determined according to the installation environment, and it goes without saying that the bottom wall 111a and the side wall 111b may have the same thickness.

Inside the flange 111c of the cover body 111, an opening 112 that opens in a substantially rectangular shape on the front surface facing the bottom wall 111a is provided. In other words, the flange 111c forms a peripheral edge that surrounds the entire circumference of the opening 112. The size of the opening 112 is preferably larger than the through hole 12 of the wall material 11. Further, inside the cover body 111, an accommodating portion 113 surrounded by a peripheral wall (all side walls 111a) is formed. The accommodating portion 113 is a space for accommodating the wiring fixture fixture 120 and optionally a part of the wiring fixture 13. On the front surface of the flange 111c, a contact portion 114 extending in an annular shape along the outer circumference of the opening 112 is formed. The abutting portion 114 is configured in a planar shape so as to abut on the front surface and the peripheral edge of the through hole 12 on the back surface of the wall without a gap on the entire circumference. Preferably, a double-sided tape may be arranged on the front surface of the contact portion 114 as a sticking portion (not shown). By sticking the sticking portion to the peripheral edge of the through hole 12, the sound insulation cover 110 can be temporarily held at a predetermined position on the back surface of the wall. Further, as will be described later, the flange 111c serves as a pinched portion 115 sandwiched by the wiring fixture 13 and the wiring fixture fixture 120 (or the back surface of the wall) when the wiring fixture 13 is fixed to the wiring fixture fixture 120. Function.

The sound insulation cover 110 of the present embodiment is formed of rubber having a high specific density and high hardness as a sound insulation material, and is integrally manufactured by a vulcanization molding method. That is, the cover body 111 of the sound insulation cover 110 is made of an elastic material. As the high-hardness rubber, ethylene propylene diene rubber (EPDM) is used, and rubber having a specific gravity of 2 or more and a hardness of 85 to 95 is used. Further, the hardness of rubber is measured by a measuring method (JIS K6253) using a durometer, which is a measuring method adopted for vulcanized rubber. The sound insulation cover 110 is made of rubber whose hardness is measured using a type D durometer for high hardness. The hardness of the sound insulation cover 110 is preferably set to a hardness of 85 or more so that the cover body 111 can be suppressed from vibrating due to the sound when the sound generated on the wall surface side propagates to the sound insulation cover 110. Further, the hardness of the sound insulation cover 110 is preferably set to a hardness of 85 or more in order to maintain the shape of the cover body 111 (particularly, the flange 111c). Further, the hardness of the sound insulation cover 110 is preferably set to a hardness of 95 or less so that the sound insulation cover 110 can be easily deformed.

Next, the configuration of the wiring fixture fixture 120 of the present embodiment will be described with reference to FIGS. 5 to 7. 5 (a) and 5 (b) are schematic perspective views of the wiring fixture fixture 120. 6 (a) to 6 (c) are a front view, a side view, and a plan view of the wiring fixture fixture 120. FIG. 7 is a cross-sectional view taken along the line BB of the wiring fixture fixture 120.

The wiring fixture fixture 120 is installed on the back of the wall and is configured to fix the wiring fixture 13 through the through hole 12 formed in the wall material 11. Specifically, the wiring fixture fixture 120 is composed of a flat plate-shaped frame 121 having a rectangular opening 121a in the center. A part of the wiring device 13 can be accommodated on the back side of the wall through the opening 121a of the frame body 121. Further, the frame body 121 is formed to be larger than the outer periphery of the through hole 12 of the wall material 11 so that the front surface can be arranged to face the peripheral edge of the through hole 12. A holding surface 121b for holding the flange 111c (holding portion 115) of the sound insulation cover 110 is formed on the outer peripheral portion of the front surface of the frame 121.

The frame body 121 is formed with a fixing portion 122 for fixing the wiring device 13 via the through hole 12. The fixing portion 122 is composed of a pair of screw holes formed above and below the opening 121a in the center in the width direction. Further, a locking portion 123 protruding forward from the frame body 121 is provided on the outer side of the fixing portion 122 in the vertical direction. The locking portion 123 is an arc-shaped projecting piece formed along the shape of the inner peripheral surface of the through hole 12. That is, by bringing the pair of locking portions 123 into contact with the inner peripheral surface of the through hole 12, the installation position of the wiring fixture fixture 120 on the wall material 11 can be determined. That is, the locking portion 123 functions as a positioning means.

In the present embodiment, the wiring fixture fixture 120 is made of a hard synthetic resin, but the present invention is not limited to the above embodiment. For example, the wiring fixture fixture 120 may be made of metal or wood.

Subsequently, with reference to FIGS. 8 and 9, the installation structure 10 of the wiring device 13 constructed by the sound insulation device 100 (or the sound insulation cover 110) of the present embodiment will be described. FIG. 9 is a cross-sectional view showing the installation structure 10. FIG. 10 is an exploded perspective view of the installation structure 10.

As shown in FIG. 9, in the installation structure 10 of the present embodiment, the wiring fixture 13 is installed on the wall material 11 so as to face the wall surface through the through hole 12. That is, the installation structure 10 of the present embodiment is housed in the wall material 11 having the wall surface and the wall back surface on which the through hole 11 is formed, the sound insulation cover 110 installed on the back of the wall, and the accommodating portion 113 of the sound insulation cover 110. The wiring fixture fixture 120 is provided so as to face the wall surface through the through hole 12, and the wiring fixture 13 fixed to the wiring fixture fixture 120. The wiring fixture 13 can be selected from any fixture installed on the wall material 11 such as an outlet, a switch, and a lighting device. The wiring device 13 includes a mounting frame portion 13a fixed to the wiring device fixing tool 120 via a screw hole 13c, and a main body portion 13b supported by the mounting frame portion 13a.

More specifically, in the installation structure 10, the sound insulation cover 110 is arranged in the space behind the wall so that the opening 112 of the sound insulation cover 110 communicates with the through hole 12, and the contact portion 114 on the front surface of the flange 111c of the cover body 111 is provided. It is in close contact with the peripheral edge of the through hole 12 on the back surface of the wall over the entire circumference. That is, the through hole 12 is closed by the sound insulation cover 110. In other words, the sound insulation cover 110 separates the wall front space and the wall back space in the through hole 12 in a sealed state. A wiring fixture fixture 120 and a part of the wiring fixture 13 (main body portion 13b) are arranged in the accommodating portion 113 of the sound insulation cover 110. The wiring fixture fixture 120 is fixed to the wall material 11 and the sound insulation cover 110, the locking portion 123 of the wiring fixture fixture 120 abuts on the inner peripheral surface of the through hole 12, and the opening 121a communicates with the through hole 12. ing. Further, the holding surface 121b of the outer peripheral portion of the frame body 121 of the wiring fixture fixture 120 is located so as to face the back surface of the wall. The sandwiching surface 121b is in pressure contact with the rear surface of the flange 111c of the sound insulation cover 110 over the entire circumference of the outer circumference of the through hole 12. Then, the wiring device 13 is fixed to the wiring device fixture 120. The back surface of the mounting frame portion 13a of the wiring device 13 is in contact with the entire periphery of the peripheral edge of the through hole 12 on the wall surface. The screw 125 is screwed into the screw hole 13c and the fixing portion 122 in a state where the screw hole 13c of the mounting frame portion 13a and the fixing portion 122 of the wiring device fixture 120 are aligned in the depth direction of the through hole 12. .. In this state, the flange 111c of the sound insulation cover 110 is sandwiched together with the wall material 11 between the holding surface 121b of the frame body 121 of the wiring fixture fixture 120 and the back surface (holding surface) of the mounting frame portion 13a of the wiring fixture 13. .. As a result, in the installation structure 10, the wiring device 13 is installed in the wall material 11 through the through hole 12 in a state where the through hole 12 is closed with the sound insulating material.

Next, with reference to FIGS. 10 to 12, a method of installing the wiring device 13 in the wall material 11 through the through hole 12 formed in the wall material 13 in order to construct the installation structure 10 will be described. For convenience of explanation, the description of the main body 13b of the wiring device 13 is omitted in the drawings.

First, as shown in FIG. 10, the sound insulation cover 110 is arranged from the front surface of the wall to the back surface of the wall through the through hole 12 formed in the wall material 11. Specifically, the sound insulation cover 110 is crushed in the front-rear direction (the direction in which the side wall 111b is erected) to compress and deform the entire sound insulation cover 110 to a size that allows it to pass through the through hole 12 or a size that allows it to easily pass through. Then, the sound insulation cover 110 in the elastically compressed state is tilted with respect to the wall material 11 and passed through the through hole 12 to be arranged in the space behind the wall. Preferably, in the space behind the wall, the sound insulation cover 110 is held at a predetermined position on the back of the wall by sticking the contact portion 114 of the flange 111c to the peripheral edge of the through hole 12 on the back of the wall with a sticking portion (double-sided tape). Can be done.

Next, as shown in FIG. 11, the wiring fixture fixture 120 is inserted into the through hole 12 from the front surface of the wall to the back of the wall, and the wiring fixture fixture 120 is accommodated in the accommodating portion 113 of the cover main body 111. Then, the holding surface 121b of the frame body 121 of the wiring fixture fixture 120 is opposed to the peripheral edge of the through hole 12 on the back surface of the wall and the back surface of the flange 111c. At this time, the sound insulation cover 110 and the wiring fixture fixture 120 are arranged so that the opening 1112 of the sound insulation cover 110 and the opening 121a of the wiring fixture fixture 120 face the wall surface through the through hole 12.

Then, as shown in FIG. 12, in a state where the contact portion 114 on the front surface of the flange 111c is in contact with the peripheral edge of the through hole 12 on the back surface of the wall, the sandwiched portion 115 of the cover main body 111 is attached to the wiring fixture 13 and the wiring fixture fixture. The wiring fixture 13 is fixed to the wiring fixture fixture 120 so as to be sandwiched together with the wall material 11 by the 120. Specifically, the screw hole 13c of the wiring device 13 and the fixing portion 122 of the wiring device fixing tool 120 are matched, and a pair of screws 125 are screwed into each screw hole 13c and each fixing portion 122. By strongly fastening the screw 125, the wiring fixture 13 and the wiring fixture fixture 120 are attracted to each other, and the sandwiched portion 115c can be pinched by the wiring fixture 13 and the wiring fixture fixture 120. Further, by this fastening force, the contact portion 114 can be more reliably pressed (adhered) to the back surface of the wall with a strong force, and the space between the wall material 11 and the flange 111c can be sealed without a gap. As a result, the wiring fixture 13, the sound insulation cover 110, and the wiring fixture fixture 120 can be installed on the wall material 11 while closing the through hole 12 with the sound insulating material. That is, according to the method of the present embodiment, it is possible to construct the sound insulation structure at the same time as installing the wiring device 13 on the wall material 11 which has been erected in advance.

As in the installation structure 10'shown in FIG. 13, a sound absorbing member 117 made of a foamable material such as urethane foam is sprayed on the inner surface of the cover body 111 and additionally arranged in the accommodating portion 113 in order to improve the sound insulation performance. May be good.

Hereinafter, the effects of the sound insulation device 100 and the sound insulation cover 110 according to the embodiment of the present invention will be described.

The cover main body 111 of the sound insulation cover 110 of the present embodiment has a contact portion 114 extending along the outer periphery of the opening 112 and abutting the back surface of the wall on the front surface of the cover main body 111, and a wiring fixture 13 and a wiring fixture fixing tool. A sandwiched portion 115 sandwiched together with the wall material 11 by 120 is provided on the flange 111c. That is, the sound insulation cover 110 is arranged on the back surface of the wall through the through hole 12 formed in the wall material 11, the wiring fixture fixture 120 is housed in the accommodating portion 113 of the cover main body 111, and the contact portion 114 is attached to the back surface of the wall. The sound insulation cover 110 is easily installed on the back of the wall with the through hole 13 sealed by sandwiching the sandwiched portion 115 together with the wall material 11 by the wiring fixture 13 and the wiring fixture fixture 120. be able to. In particular, as compared with the case where the wall material is erected after the sound insulation cover is installed as in the conventional case, the sound insulation measures are more reliably performed by directly attaching the wall material 11 to the already erected wall material 11. It is possible. Therefore, the sound insulation device 100 and the sound insulation cover 110 of the present embodiment make it possible to install the wiring device 13 on the wall material 11 erected in advance and to construct the sound insulation structure more easily and surely. Is.

[Modification example]
The present invention is not limited to the above-described embodiment, and various embodiments and modifications can be taken. Hereinafter, a plurality of modifications of the present invention will be described. In each embodiment, components having the same last two digits have the same or similar characteristics unless otherwise specified, and some description thereof will be omitted.

(1) The sound insulation cover of the present invention is not limited to the above embodiment. A frame member 218 made of a hard material may be attached to the flange 211c as in the sound insulation cover 210 of FIG. The hard material can be selected from a metal material, a hard synthetic resin, and the like. Further, in the sound insulation cover 210, a contact portion 214 is formed on the front surface of the frame member 218, and the frame member 218 functions as a sandwiched portion 215 that is sandwiched between the wiring device and the wiring device fixing tool. That is, by using the abutting portion 214 and / or the sandwiched portion 215 as a frame member made of a hard material, it is possible to press the contact portion 214 and / or the sandwiched portion 215 by the wiring device and the wiring device fixture with a stronger force. When there are many irregularities on the back surface of the wall, it is preferable to select a soft contact portion and a sandwiched portion in consideration of the closeness to the back surface of the wall.

(2) The shape and dimensions of the sound insulation cover of the present invention are not limited to the above embodiments. The opening of the sound insulation cover and the front shape of the cover body do not have to be rectangular, and may be selected from arbitrary shapes such as a circle, an ellipse, and other polygonal shapes. Further, the bellows structure of the side wall may be omitted.

(3) In the above embodiment, the contact portion and the sandwiched portion are integrally formed on the flange of the sound insulation cover, but the contact portion and the sandwiched portion may be formed separately. For example, as in the sound insulation cover 310 of FIG. 15, instead of the flange, the projecting piece extending inside the opening 312 is used as the holding portion 315, and the annular flange extending outside the opening 312 is used as the contact portion. It may be 314. The contact portion 314 may be tilted to the front in order to ensure that the contact portion 314 is brought into close contact with the back surface of the wall by the pinching pressure of the sandwiched portion.

(4) The wiring fixture and the wiring fixture fixture of the above embodiment are merely examples, and those having various shapes and uses can be adopted. For example, the wiring fixture fixture may be a C-shaped frame that does not press-contact the sandwiched portion on the entire circumference of the through hole. Alternatively, the wiring fixture fixture may be in the form of a wiring box. In this case, the wiring fixture is fixed to the wiring box with the wiring box housed in the accommodating portion of the sound insulation cover. At the time of fixing, the fixed portion of the wiring box faces the wall surface through the through hole, and the sandwiched portion of the sound insulation cover is sandwiched together with the wall material by the opening of the wiring fixture and the wiring box.

The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various embodiments as long as it belongs to the technical scope of the present invention.

10 Installation structure 11 Wall material 12 Through hole 13 Wiring fixture 13a Mounting frame part 13b Main body part 13c Screw hole 100 Sound insulation device 110 Sound insulation cover 111 Cover body 111a Bottom wall 111b Side wall 111c Flange 112 Opening 113 Storage part 114 Contact part 115 Covered Holding part 117 Sound absorbing member 120 Wiring fixture Fixing tool 121 Frame body 121a Opening 121b Holding surface 122 Fixing part 123 Locking part 125 Screw

Claims (11)

A sound insulation cover that accommodates a wiring fixture fixture for fixing a wiring fixture through a through hole formed in a wall material on the back of the wall and is installed on the back of the wall so as to close the through hole.
It has a cover body formed in a bottomed box shape with a bottom wall and side walls made of sound insulating material.
The cover body
An opening that opens on the front surface facing the bottom wall, an accommodating portion for accommodating the wiring fixture fixture, and the accommodating portion.
An abutting portion that extends along the outer circumference of the opening and abuts on the back surface of the wall on the front surface.
A sound insulation cover comprising: the wiring fixture and a sandwiched portion sandwiched together with the wall material by the wiring fixture fixture when the wiring fixture is fixed to the wiring fixture fixture. The sound insulation cover according to claim 1, wherein the contact portion includes a sticking portion that is attached to the back of the wall. The sound insulation cover according to claim 1 or 2, wherein the cover body is formed so as to be compressible and deformable so as to pass through the through hole. The sound insulation cover according to claim 3, wherein the cover body is made of an elastic material. The sound insulation cover according to claim 3 or 4, wherein the side wall of the cover body has a bellows shape in which peaks and valleys are alternately continuous. The sound insulation cover according to any one of claims 1 to 5, wherein the bottom wall of the cover body is thicker than the side wall. The sound insulation cover according to any one of claims 1 to 6, wherein the contact portion and / or the sandwiched portion is made of a frame member made of a hard material having an opening into which the wiring device can be inserted. .. The sound insulation cover according to any one of claims 1 to 7, further comprising a sound absorbing member made of a foamable material arranged in the cover body. A sound insulation device that fixes wiring equipment to the wall surface through through holes formed in the wall material and is installed behind the wall so as to close the through holes.
The sound insulation cover according to any one of claims 1 to 8.
A sound insulation device including a fixing portion for fixing a wiring device, and a wiring device fixing tool arranged from the wall surface to the back of the wall through the through hole. A wall material having a wall surface and a wall back surface on which through holes are formed,
The sound insulation cover according to any one of claims 1 to 8 installed on the back of the wall,
A wiring fixture fixture housed in the accommodating portion of the sound insulation cover and installed so that the fixing portion faces the wall surface through the through hole.
The wiring fixture fixed to the wiring fixture fixture is provided.
The wiring fixture and the wiring fixture fixture sandwich the sandwiched portion of the sound insulation cover together with the wall material in a state where the contact portion on the front surface of the cover body of the sound insulation cover is in contact with the peripheral edge of the through hole on the back surface of the wall. The installation structure of the wiring equipment, which is characterized by the fact that it is installed. It is a method of installing wiring equipment through through holes formed in the wall material.
A step of arranging a sound insulating cover having a bottom wall and a side wall formed of a sound insulating material and having a bottom wall and a side wall formed in a bottomed box shape from the wall surface to the back of the wall through the through hole.
A step of accommodating the wiring fixture fixture for fixing the wiring fixture in the accommodating portion of the cover body, and
In a state where the contact portion surrounding the opening on the front surface of the cover body is brought into contact with the peripheral edge of the through hole on the back surface of the wall, the sandwiched portion of the cover body is held together with the wall material by the wiring device and the wiring device fixing tool. A method comprising a step of fixing the wiring device to the wiring device fixing tool so as to sandwich the wiring device.

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