JP2019110618A - Sound insulation cover, sound insulation device, installation structure of wiring accessory and installation method of wiring accessory - Google Patents

Abstract

To provide a sound insulation cover installable on a wall material having through-holes, and reliably closing the through-holes.SOLUTION: A sound insulation cover 110 comprises a cover body 111 having a bottom wall 111a and a side wall 111b using a sound insulation material and formed in a bottomed box shape. The cover body 111 comprises an opening 112 opened at a front face facing the bottom wall 111a, a housing part 113 for housing a wiring accessory fixture 120, an abutting part 114 extended along an outer periphery of the opening 112 and abutting on a wall rear face at the front face, and a gripped part 115 gripped together with a wall material 11 by a wiring accessory 13 and the wiring accessory fixture 120, when the wiring accessory 13 is fixed to the wiring accessory fixture 120.SELECTED DRAWING: Figure 1

Description

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

  Generally, when a wiring device such as an outlet or a switch is installed on a wall material of a building, a through hole is formed in the wall material, and the wiring device is disposed to face the wall surface via the wall material, Wiring is arranged in the back wall space. And in order to suppress the sound leak via the through-hole of a wall material, a sound insulation measure is needed so that a through-hole may be obstruct | occluded.

  For example, Patent Document 1 discloses a sound insulation cover installed on the back of a wall to cover a through hole formed in the wall material. Hereinafter, in the said paragraph, the code | symbol of patent document 1 is shown in (). The sound insulation cover (20) includes a cover body (21) formed in a bottomed box shape having an opening (20a) on one side. The cover body (21) is formed entirely of high-hardness rubber and has a housing portion (24) for housing the wiring box (11) installed on the back of the wall. Further, the flange (26) is integrally formed at the opening end of the cover main body (21) at its base end. The flange (26) is formed to extend from the entire circumference of the opening (20a) to the outside of the cover body (21), and the front surface of the flange (26) is the opening surface (H2) of the cover body (21) ) Is located above. Further, a fixing portion (31) is attached to one of the peripheral walls (23) of the cover main 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 device (42) on the wall (W), in both fixing holes (31a) of the fixing portion (31) By inserting the fixing screw (33) and forcibly screwing the fixing screw (33) into the lightweight steel (P), the sound insulation cover (20) is fixed to the lightweight steel (P). Then, the wiring box (11) is housed in the housing portion (24) of the cover main body (21). At this time, the flange (26) of the sound insulation cover (20) is inclined to extend away from the bottom (22). Next, the wall material (Wa) is erected so as to sandwich the light-weight shaped steel material (P). Then, the back surface of the wall material (Wa) abuts on the flange (26), and the flange (26) comes in pressure contact with the back surface of the wall material (Wa) to return to the original shape. As a result, in the wiring box (11), the entire outer surface of the projection to the wall back side is covered by the cover body (21). Then, the wiring box (11) installed on the back side of the wall material (Wa) is detected, and the wall material (Wa) is cut away using a cutting tool (not shown), and the through hole (Wa) is formed in the wall material (Wa). While forming Wb), the wiring box (11) is faced to the wall front side. Thereafter, the wiring device (42) is held by the holding frame (43) and attached to the wiring box (11), and the wiring device (42) is a wall by housing the wiring device (42) in the wiring box (11). (W) will be installed.

JP, 2014-209822, A

  In the conventional method of installing the wiring device as in Patent Document 1, the sound insulation cover can be installed on the back of the wall by fixing the wall material after being fixed to the stud (light-weight steel). Therefore, it was difficult to newly install a sound insulation cover in a building in which a wall material has already been erected. Moreover, in the sound insulation cover of Patent Document 1, when the wall material is erected, the through hole is closed by pressing the flange against the flange. However, due to a slight misalignment, a gap is likely to be generated between the flange and the back of the wall. Therefore, in order to ensure that the entire peripheral surface of the flange is in pressure contact with the back surface of the wall, it is essential to eliminate positional deviation of the wall material and the through hole at the time of construction, and in order to ensure accuracy in construction, It is also a problem that it requires attention and construction takes time and effort.

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

The sound insulation cover according to claim 1 houses the wiring fixture fixing tool for fixing the wiring fixture through the through hole formed in the wall material in the back of the wall and closes the through hole. Sound insulation cover installed in
A bottomed box-shaped cover body having a bottom wall and a side wall made of a sound insulation material;
The cover body is
An opening that opens at a front surface facing the bottom wall, and a storage unit for storing the wiring fixture fixture;
An abutment portion extending along the outer periphery of the opening and abutting on the back surface at the front surface;
When the wiring tool is fixed to the wiring tool fixture, the wiring tool and the wiring tool fixture may include a gripped portion held together with the wall material.

  The sound insulation cover according to claim 2 is characterized in that, in the sound insulation cover according to claim 1, the contact portion is provided with an attached portion attached to the back of the wall.

  The sound insulation cover according to claim 3 is characterized in that, in the sound insulation cover according to claim 1 or 2, the cover main body is formed so as to be able to be compressed and deformed so as to be able 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, characterized in that the cover main body is formed of an elastic material.

  The sound insulation cover according to claim 5 is characterized in that in the sound insulation cover according to claim 3 or 4, the side wall of the cover main body has a bellows shape in which peak portions and valley portions are alternately continued. Do.

  The sound insulation cover according to claim 6 is characterized in that in the sound insulation cover according to any one of claims 1 to 5, the bottom wall of the cover main 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 pinched portion has an opening through which the wiring device can be inserted. It is characterized by comprising a frame member of a hard material.

  The sound insulation cover according to claim 8 is characterized in that the sound insulation cover according to any one of claims 1 to 7 further comprises a sound absorbing member made of a foamable material disposed in the cover main body. .

The sound insulation apparatus according to claim 9 is a sound insulation apparatus installed on the wall back so as to fix the wiring fixture to the wall surface through the through hole formed in the wall material and to close the through hole. ,
The sound insulation cover according to any one of claims 1 to 8;
It has a fixing part for fixing a wiring tool, and is provided with the wiring tool fixture which is arranged on the wall back from the wall surface via the said through-hole.

An installation structure of a wiring device according to claim 10, comprising: a wall material having a wall surface on which a through hole is formed and a wall back surface;
The sound insulation cover according to any one of claims 1 to 8 installed on the back of a wall,
A wiring fixture fixing tool housed in the housing portion of the sound insulation cover and installed so that the fixing portion faces the wall surface through the through hole;
A wiring fixture fixed to the wiring fixture fixing;
In a state in which the contact portion of the front surface of the cover main body of the sound insulation cover is in contact with the periphery of the through hole on the back surface of the wall, the wiring device and the wiring device fixture hold the pinched portion of the sound insulation cover together with the wall material It is characterized by

The method according to claim 11 is a method of installing a wiring apparatus through a through hole formed in a wall material,
Placing a sound insulation cover comprising a cover body formed in a bottomed box shape having a bottom wall and a side wall by a sound insulation material from the wall surface via the through hole to the wall back;
Storing a wiring fixture for fixing the wiring fixture in the housing portion of the cover main body;
With the contact portion surrounding the opening on the front surface of the cover main body in contact with the peripheral edge of the through hole on the back surface of the cover, the pinched portion of the cover main body together with the wall member by the wiring device and the wiring device fixing device Securing the wire fitting to the wire fitting fixture so as to clamp the wire fitting.

  According to the sound insulation cover of the first aspect, the cover body extends along the outer periphery of the opening, and contacts the front surface of the cover body and abuts against the back surface of the wall, and the wiring fixture and the wiring fixture fixture There is provided a held portion which is held together with the wall material. That is, the cover main body is disposed behind the wall through the through hole formed in the wall material, the wiring fixture fixing tool is accommodated in the housing portion of the cover main body, and the contact portion is brought into contact with the wall back surface By sandwiching the portion together with the wall material by the wiring fixture and the wiring fixture fixing fixture, the sound insulation cover can be easily installed on the wall back in a state where the through hole is more reliably closed. Therefore, the sound insulation cover of the present invention makes it possible to form the sound insulation structure more easily and more reliably to the wall material provided in advance.

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

  According to the sound insulation cover of the third aspect, in addition to the effect of the invention of the first or second aspect, the sound insulation cover is compressed by compressing the cover main body in the front-rear direction (the depth direction of the through hole at the time of installation). It becomes possible to be easily arranged behind the wall through the through hole.

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

  According to the sound insulation cover of the fifth aspect, in addition to the effect of the invention according to the third or fourth aspect, the side wall of the cover main body can be freely expanded and contracted in the height direction by the bellows shape. With the simple structure, the cover main body can be easily extended and contracted in the front-rear direction.

  According to the sound insulation cover of the sixth aspect, in addition to the effect of the invention according to any of the first to fifth aspects, the bottom wall of the cover main 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 of the seventh aspect, in addition to the effect of the invention according to any of the first to sixth aspects, the wiring by a stronger force by making the contact portion and / or the pinched portion a hard material. It is possible to hold the pressure by the fixture and the wiring fixture fixture.

  According to the sound insulation cover of the eighth aspect, in addition to the effect of the invention according to any of the first to seventh aspects, by providing the sound absorption member made of the foamable material on the cover main body, higher sound absorption performance is exhibited. It becomes possible.

  According to the sound insulation device of the ninth aspect, while exhibiting the effect of the invention of any of the first to eighth aspects as a sound insulation device, the wiring device is fixed to the wiring device fixture disposed on the back of the wall, It is possible to construct the installation structure of the wiring device on the wall material.

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

  According to the installation method of the wiring device according to claim 11, the cover main body is disposed behind the wall through the through hole formed in the wall material, and the wiring device fixing tool is accommodated in the housing portion of the cover main body, By bringing the contact portion into contact with the periphery of the through hole on the back of the wall and sandwiching the pinched portion together with the wall material by the wiring fixture and the wiring fixture fixing fixture, the sound insulation cover is blocked in a state of more reliably closing the through hole. It can be easily installed on the back. In particular, since the noise insulation cover can be fixed to the back of the wall in a state in which the through hole is reliably closed while fixing the wiring device to the wiring device fixing device, the installation operation of the wiring device can be speeded up. Therefore, the method of the present invention makes it possible to construct the installation structure of the wiring apparatus subjected to the noise insulation more easily and reliably with respect to the wall material provided in advance.

The disassembled perspective view of the sound insulation apparatus of one Embodiment which concerns on this invention. The (a) schematic perspective view seen from the front of the sound insulation cover of the sound insulation apparatus of FIG. 1, and the schematic perspective view seen from the rear surface (b). (A) Top view of the sound insulation cover of FIG. 2, (b) Front view, (c) Side view and (d) Back view. AA sectional drawing of the noise insulation cover of FIG. The schematic perspective view seen from the (a) front surface of the wiring fixture fixing tool of the sound insulation apparatus of FIG. 1, and the schematic perspective view seen from the (b) rear surface. (A) Front view of the wiring tool fixture of FIG. 6, (b) Side view, and (c) Top view. FIG. 7 is a cross-sectional view of the wiring device fixture of FIG. BRIEF DESCRIPTION OF THE DRAWINGS The schematic sectional drawing of the installation structure of the wiring instrument of one Embodiment of this invention. The disassembled perspective view of the installation structure of FIG. The method of installing a wiring fixture through the through-hole formed in the wall material WHEREIN: The schematic diagram which shows the process of arrange | positioning a sound insulation cover from a wall surface through a through-hole to a wall back. In the method of installing a wiring tool through the through-hole formed in wall material, the schematic diagram which shows the process of accommodating a wiring tool fixture in the accommodating part of a cover main body. The method of installing a wiring fixture through the through-hole formed in the wall material WHEREIN: The schematic diagram which shows the process of fixing a wiring fixture to a wiring fixture fixing tool. The schematic sectional drawing of the installation structure of the wiring instrument of another embodiment of this 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. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic view in explaining a suitable shape dimension, and a dimensional ratio etc. do not necessarily correspond with an actual dimensional ratio. 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 fixing tool 120 and the wiring fixture 13 are installed on the wall material 11 via the through hole 12 formed in the wall material 11 constituting the hollow wall. It is used to stop and prevent the decrease in sound insulation. Moreover, the sound insulation apparatus 100 of this embodiment is comprised from the sound insulation cover 110 and the wiring fixture fixing tool 120, and is an apparatus for installing the wiring fixture 13 in the wall material 11 through the through-hole 12. FIG. Furthermore, 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 (the sound insulation cover 110 and the 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 disposed in the sound insulation cover 110 installed on the wall back so as to close the through hole 12 and in the sound insulation cover 110 on the wall back through the wall 12 from the wall surface And a wiring fixture fixture 120 for fixing the wiring fixture 13 to the wall surface.

  First, the configuration of the sound insulation cover 110 according to 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. FIG. FIGS. 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 of the sound insulation cover 110 taken along the line A-A.

  The sound insulation cover 110 of the present embodiment includes a cover main body 111 formed in a bottomed box shape opened on the front surface by a sound insulation material. The cover body 111 protrudes inward from the front end of all the side walls 111b by a predetermined length from a substantially rectangular flat bottom wall 111a defining a rear surface, side walls 111b erected from the four sides of the bottom wall 111 to the front side It is integrally comprised from the flange 111c. Each side wall 111 b has a bellows shape in which a plurality of pairs of peaks and valleys continue alternately. In the present embodiment, two pairs of peaks and valleys are formed on the side wall 111b. By deforming the side wall 111b of the bellows structure in the height (standing) direction, the cover main body 111 can be expanded and contracted back and forth. Further, in the present embodiment, the bottom wall 111 a of the cover body 111 is formed thicker than the side wall 111 b. Thus, the relatively thick bottom wall 111a effectively isolates the sound propagating in the front direction of the wall member 11, and the relatively thin side wall 111b secures the high stretchability of the cover 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. The thickness of the bottom wall is preferably about 1.5 times or more the thickness of the side wall in order to realize the improvement of the sound insulation performance for the sound propagating in the front-rear direction. In the case of wiring so that the cable passes 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.

  Inward of the flange 111c of the cover body 111, an opening 112 is provided which opens in a substantially rectangular shape on the front surface facing the bottom wall 111a. In other words, the flange 111 c 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, a housing portion 113 surrounded by the peripheral wall (all side walls 111a) is formed. The housing portion 113 is a space for housing the wiring fixtures 120 and optionally a part of the wiring fixture 13. On the front surface of the flange 111 c, an abutting portion 114 extending annularly along the outer periphery of the opening 112 is formed. The contact portion 114 is configured to be flat so as to contact the periphery of the through hole 12 on the back surface of the wall on the entire surface without a gap. Preferably, a double-sided tape may be disposed on the front surface of the contact portion 114 as a sticking portion (not shown). By attaching the attachment 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 described later, the flange 111 c is a pinched portion 115 which is pinched 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 made of rubber having a high specific gravity and high hardness as a sound insulation material, and is integrally manufactured by a vulcanization molding method. That is, the cover main body 111 of the sound insulation cover 110 is formed of an elastic material. As a high hardness rubber, ethylene propylene diene rubber (EPDM) is used, and a rubber having a specific gravity of 2 or more and a hardness of 85 to 95 is used. Further, the hardness of the 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 main body 111 can be prevented from vibrating due to the sound when the sound generated on the wall front 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 main body 111 (in particular, the flange 111 c). Furthermore, the hardness of the sound insulation cover 110 is preferably set to a hardness of 95 or less in order to make the sound insulation cover 110 easily deformable.

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

  The wiring fixture fixing device 120 is installed on the back of the wall, and is configured to fix the wiring fixture 13 through the through holes 12 formed in the wall material 11. Specifically, the wiring fixture fixing tool 120 is formed of a flat frame 121 having a rectangular opening 121 a at the center. A part of the wiring fixture 13 may be accommodated on the back side of the wall through the opening 121 a of the frame 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 disposed opposite to the peripheral edge of the through hole 12. And, on the outer peripheral portion of the front surface of the frame 121, a holding surface 121b for holding the flange 111c (the held portion 115) of the sound insulating cover 110 is formed.

  In the frame body 121, a fixing portion 122 for fixing the wiring fixture 13 through the through hole 12 is formed. The fixing portion 122 is formed of a pair of screw holes provided at the top and bottom of the opening 121a at the center in the width direction. Further, on the outer side in the vertical direction of the fixing portion 122, a locking portion 123 protruding forward from the frame 121 is provided. 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 on the wall material 11 of the wiring device fixture 120 can be determined. That is, the locking portion 123 functions as a positioning means.

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

  Then, with reference to FIG. 8, FIG. 9, the installation structure 10 of the wiring fixture 13 constructed | assembled by the sound insulation apparatus 100 (or the sound insulation cover 110) of this embodiment is demonstrated. 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 via the through holes 12. That is, the installation structure 10 of the present embodiment is housed in the wall member 11 having the wall surface and the wall back surface in which the through holes 11 are formed, the sound insulation cover 110 installed on the wall back, and the accommodation portion 113 of the sound insulation cover 110 And the wiring device fixture 120 installed to face the wall surface through the through hole 12, and the wiring device 13 fixed to the wiring device fixture 120. The wiring fixture 13 may be selected from any fixtures installed on the wall material 11 such as outlets, switches, lighting devices and the like. The wiring device 13 includes an attachment frame 13a fixed to the wiring fixture 120 via a screw hole 13c, and a main portion 13b supported by the attachment frame 13a.

  More specifically, in the installation structure 10, the sound insulating cover 110 is disposed in the wall back space so that the opening 112 of the sound insulating cover 110 communicates with the through hole 12, and the contact portion 114 on the front surface of the flange 111c of the cover main body 111 is It is in close contact with the periphery of the through hole 12 on the back 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 in the through hole 12 seals the wall front space and the wall back space. In the housing portion 113 of the sound insulation cover 110, the wiring fixture fixing tool 120 and a part (main portion 13b) of the wiring fixture 13 are disposed. The wiring fixture 120 is fixed to the wall member 11 and the sound insulation cover 110, and the locking portion 123 of the wiring 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 121 of the wiring fixture fixing member 120 is positioned to face the back surface of the wall. The clamping surface 121 b is in pressure contact with the rear surface of the flange 111 c of the sound insulating cover 110 over the entire circumference of the outer periphery of the through hole 12. The wiring device 13 is fixed to the wiring device fixture 120. The back surface of the mounting frame 13a of the wiring device 13 is in contact with the entire periphery of the through hole 12 on the wall surface. The screw 125 is screwed to the screw hole 13 c and the fixing portion 122 in a state where the screw hole 13 c of the mounting frame portion 13 a and the fixing portion 122 of the wiring fixture 120 are aligned in the depth direction of the through hole 12. . In this state, the flange 111c of the sound insulating cover 110 is pinched together with the wall material 11 by the pinching surface 121b of the frame 121 of the wiring fixture fixing tool 120 and the back surface (sandwiching surface) of the mounting frame 13a of the wiring fixture 13. . As a result, in the installation structure 10, the wiring fixture 13 is installed on the wall material 11 via the through hole 12 in a state where the through hole 12 is closed by the sound insulation material.

  Next, with reference to FIGS. 10 to 12, a method of installing the wiring apparatus 13 on the wall material 11 through the through holes 12 formed in the wall material 13 in order to construct the installation structure 10 will be described. Note that for convenience of description, the depiction of the main body 13b of the wiring fixture 13 is omitted in the drawings.

  First, as shown in FIG. 10, the sound insulation cover 110 is disposed from the wall surface to the wall back via the through holes 12 formed in the wall material 11. In detail, the sound insulation cover 110 is crushed in the front-rear direction (the direction in which the side wall 111b is provided) to compress and deform the entire sound insulation cover 110 into a size that can pass through the through hole 12 or a size that easily passes through. Then, the sound insulation cover 110 in a state of being elastically compressed is made to pass through the through holes 12 while being inclined with respect to the wall material 11 and disposed in the wall back space. Preferably, in the back wall space, the sound insulation cover 110 is held at a predetermined position on the back wall by attaching the contact portion 114 of the flange 111c to the periphery of the through hole 12 on the back surface with a fastening portion (double-sided tape). Can.

  Next, as shown in FIG. 11, the wiring fixture fixing tool 120 is inserted into the through hole 12 from the wall surface to the wall back, and the wiring fixture fixing tool 120 is accommodated in the housing portion 113 of the cover main body 111. Then, the holding surface 121b of the frame 121 of the wiring fixture fixing member 120 is opposed to the periphery 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 blocking cover 110 and the wiring fixture 120 are disposed such that the opening 1112 of the sound shielding cover 110 and the opening 121 a of the wiring fixture 120 are exposed to the wall surface through the through holes 12.

  Then, as shown in FIG. 12, with the contact portion 114 on the front surface of the flange 111c in contact with the peripheral edge of the through hole 12 on the back surface of the wall, the portion to be held 115 of the cover main body 111 The wiring fixture 13 is fixed to the wiring fixture fixture 120 so as to be held together with the wall material 11 by 120. Specifically, the screw holes 13 c of the wiring device 13 and the fixing portion 122 of the wiring device fixture 120 are aligned, and a pair of screws 125 are screwed to the screw holes 13 c and the fixing portions 122. By strongly fastening the screw 125, the wiring device 13 and the wiring device fixture 120 can be drawn to each other, and the wiring device 13 and the wiring device fixture 120 can hold the pinched portion 115c. Further, by this fastening force, the contact portion 114 can be more reliably pressure-contacted (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 shielding cover 110, and the wiring fixture fixture 120 can be installed on the wall material 11 while closing the through holes 12 with the sound insulation 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 fixture 13 on the wall material 11 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 main body 111 and additionally disposed in the housing portion 113 in order to enhance the sound insulation performance. It is also good.

  Hereinafter, the operation and 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 extends along the outer periphery of the opening 112 and contacts the front surface of the cover main body 111 to abut the wall back surface, the wiring fixture 13 and the wiring fixture fixing fixture A pinched portion 115 which is pinched together with the wall material 11 by 120 is provided on the flange 111 c. That is, the sound insulation cover 110 is disposed on the back of the wall through the through holes 12 formed in the wall material 11, the wiring fixture fixing tool 120 is accommodated in the housing portion 113 of the cover main body 111, and the contact portion 114 is on the wall back surface. And the sandwiching portion 115 together with the wall member 11 by the wiring fixture 13 and the wiring fixture fixing fixture 120 so that the sound insulation cover 110 is easily installed on the wall back in a state where the through hole 13 is sealed. be able to. In particular, as compared with the conventional case where the wall material is erected after the installation of the sound insulation cover, the installation operation is performed directly on the already erected wall material 11 to perform the sound insulation measures more reliably. It is possible. Therefore, the sound insulation apparatus 100 and the sound insulation cover 110 of the present embodiment make it possible to install the wiring fixture 13 on the wall material 11 erected in advance and to construct the sound insulation structure more simply and reliably. It is.

[Modification]
The present invention is not limited to the above embodiment, but can take various embodiments and modifications. Hereinafter, a plurality of modifications of the present invention will be described. In each embodiment, the constituent elements common to the lower two digits have the same or similar features unless otherwise specified, and the description thereof is partially 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 211 c as with the sound insulation cover 210 of FIG. 14. The hard material may be selected from metal materials, hard synthetic resins and the like. Moreover, in the sound insulation cover 210, the contact part 214 is formed in the front surface of the frame member 218, and the frame member 218 functions as the pinched part 215 clamped by the wiring fixture and the wiring fixture fixing fixture. That is, by using the contact portion 214 and / or the held portion 215 as a frame member made of a hard material, it is possible to hold the wiring device and the wiring device fixture with a stronger force. In addition, when there are many unevenness | corrugations in the wall back side, it is more preferable to select a soft contact part and a to-be-held part based on the closeness to the wall back surface.

(2) The shape and dimensions of the sound insulation cover of the present invention are not limited to the above embodiment. The front shape of the opening of the sound insulation cover and the front surface of the cover main body may not be rectangular, and may be selected from any shape such as a circle, an oval, or another polygonal shape. Also, the bellows structure of the side wall may be omitted.

(3) In the above embodiment, the abutting portion and the pinched portion are integrally formed on the flange of the sound insulation cover, but the abutting portion and the pinched portion may be separately formed. For example, as in the case of the sound insulation cover 310 in FIG. 15, instead of the flange, a projection piece extending to the inside of the opening 312 is the pinched portion 315, and an annular flange extending to the outside of the opening 312 is an abutment It may be 314. The contact portion 314 may be inclined to the front surface in order to ensure that the contact portion 314 is in close contact with the back surface of the wall by clamping pressure of the held portion.

(4) The wiring device and the wiring device fixture of the above embodiment are merely examples, and those of various shapes and applications can be adopted. For example, the wiring fixture may be a C-shaped frame that is not in pressure contact with the held portion around the entire circumference of the through hole. Alternatively, the wiring fixture may be in the form of a wiring box. In this case, the wiring fixture is fixed to the wiring box in a state in which the wiring box is accommodated in the housing of the sound insulation cover. At the time of fixing, the fixing portion of the wiring box faces the wall surface through the through hole, and the holding portion of the sound insulating cover is held together with the wall material by the openings of the wiring fixture and the wiring box.

  The present invention is not limited to the above-described embodiment and modifications, and may be embodied in various forms within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Installation structure 11 Wall material 12 Through hole 13 Wiring fixture 13a Mounting frame 13b Body 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 Housing 113 Contacting part 115 Clamping portion 117 Sound absorbing member 120 Wiring fixture fixing tool 121 Frame body 121a Opening 121b Clamping surface 122 Fixing portion 123 Locking portion 125 Screw

Claims (11)

A sound insulation cover installed on a wall back so as to house a wiring fixture fixing tool for fixing a wiring tool via a through hole formed in a wall material on the back of the wall so as to close the through hole,
A bottomed box-shaped cover body having a bottom wall and a side wall made of a sound insulation material;
The cover body is
An opening that opens at a front surface facing the bottom wall, and a storage unit for storing the wiring fixture fixture;
An abutment portion extending along the outer periphery of the opening and abutting on the back surface at the front surface;
A sound insulation cover comprising: a clamping portion which is clamped together with the wall material by the wiring fixture and the wiring fixture, when the wiring fixture is fixed to the wiring 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 compressively deformable so as to be able to pass through the through hole.   The sound insulation cover according to claim 3, wherein the cover body is formed 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 continued.   The sound insulation cover according to any one of claims 1 to 5, wherein a 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 held portion is a frame member made of a hard material having an opening through 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 disposed in the cover main body. It is a sound insulation device installed on a wall back so as to fix a wiring fixture to a wall surface through a through hole formed in a wall material, and to close the through hole,
The sound insulation cover according to any one of claims 1 to 8;
A sound insulation device comprising: a fixing portion for fixing a wiring device; and a wiring device fixing member disposed on the wall surface from the wall surface via the through hole. A wall material having a wall surface on which a through hole is formed and a wall back surface;
The sound insulation cover according to any one of claims 1 to 8 installed on the back of a wall,
A wiring fixture fixing tool housed in the housing portion of the sound insulation cover and installed so that the fixing portion faces the wall surface through the through hole;
A wiring fixture fixed to the wiring fixture fixing;
In a state in which the contact portion of the front surface of the cover main body of the sound insulation cover is in contact with the periphery of the through hole on the back surface of the wall, the wiring device and the wiring device fixture hold the pinched portion of the sound insulation cover together with the wall material The installation structure of the wiring apparatus characterized by doing. A method of installing a wiring apparatus through a through hole formed in a wall material,
Placing a sound insulation cover comprising a cover body formed in a bottomed box shape having a bottom wall and a side wall by a sound insulation material from the wall surface via the through hole to the wall back;
Storing a wiring fixture for fixing the wiring fixture in the housing portion of the cover main body;
With the contact portion surrounding the opening on the front surface of the cover main body in contact with the peripheral edge of the through hole on the back surface of the cover, the pinched portion of the cover main body together with the wall member by the wiring device and the wiring device fixing device Securing the wiring fixture to the wiring fixture fixture so as to clamp the wire fixture.

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