JP2020200596A - Partition wall - Google Patents

Abstract

To provide a partition wall capable of eliminating the leakage of sound from one living room to the other living room in the partition wall having a column shape.SOLUTION: A partition wall 200 separating a first living room and a second living room has a column 10, a first stud 20A, a second stud 20B, first living room wall panels 30A, 32A, and 34A, and second living room wall panels 30B, 32B, and 34B; a part of the column projects toward the indoor side of both the first living room and the second living room; a first soundproof substrate material 60A is arranged over a column 10 and a first stud 20A around the column 10 and fixed to the first stud 20A, and first living room wall panels 30A, 32A and 34A are attached to the first soundproof substrate material 60A; a second soundproof substrate material 60B is arranged over a column 10 and the second stud 20B around the column 10 and fixed to the second stud 20B, and second living room wall panels 30B, 32B and 34B are attached to the second soundproof substrate material 60B.SELECTED DRAWING: Figure 3

Description

The present invention relates to a partition wall.

In a building, a partition wall that divides the internal space into two is generally applied. For example, in an apartment house (a nagaya or an apartment house), adjacent living rooms are separated by a boundary wall included in the partition wall. Some partition walls are required to have sound insulation, but among them, the boundary walls are required to have high sound insulation performance.

In the partition wall, a wall structure is generally used in which the interior surface of the interior material such as gypsum board is flat and fixed to the pillars and studs (studs) with screws, etc., and one piece is straddled over the pillars. The flat interior material is arranged, and the interior material is fixed to the pillar and a plurality of studs on the left and right sides of the pillar. For partition walls with such a general structure, for example, from the request of making the interior space as wide as possible while fixing the position of the pillar even when the size (cross-sectional dimension) of the pillar becomes large, for example. A partition wall having a pillar shape, in which a part of the pillar protrudes toward the room, may be applied.

Here, FIGS. 1 and 2 show an example of a boundary wall included in a conventional partition wall having a pillar shape. The boundary wall 100 shown in FIG. 1 and the like is a boundary wall having a pillar shape that separates the first living room and the second living room. The boundary wall 100 is arranged with a column 10 formed of a square steel pipe or the like at intervals in the longitudinal direction of the column 10, and has a T-shaped cross section connected to the column 10 by welding or the like. It has a plurality of vertical base pieces 15 and a first stud 20A and a second stud 20B fixed to the vertical base piece 15 by a fixing means 19 such as a screw. The first stud 20A and the second stud 20B are arranged with a gap so as not to come into contact with each other to form a sound bridge. A plurality of the first studs 20A and the second stud 20B are respectively arranged at intervals in the Y direction, which is the width direction of the boundary wall 100, and the plurality of first studs 20A are the first of the general parts of the boundary wall. The living room wall panel 30A (interior material) is fixed by the fixing means 19, and the second living room wall panel 30B of the general portion of the boundary wall is fixed to the plurality of second studs 20B by the fixing means 19.

Since the boundary wall 100 has a pillar shape, the first living room wall panels 30A on the left and right sides of the pillar 10 are provided with short first living room wall panels 32A so as to be orthogonal to each other. It is fixed to the common vertical rail 17 together with the wall panel 30A for a single room by the fixing means 19. Further, the first living room wall panel 34A is arranged so as to straddle the left and right first living room wall panels 32A, and is fixed to the common vertical rail 17 together with the first living room wall panel 32A by the fixing means 19. Has been done. The wall panels 30A, 32A, and 34A for the first living room are formed of, for example, two gypsum boards or the like in order to ensure fire resistance. A structure similar to the structure on the first living room side is also applied on the second living room side. A gap G is formed between the pillar 10 and the wall panels 32A and 34A for the first living room and the wall panels 32B and 34B for the second living room around the pillar 10. Further, a sound absorbing material 50 is filled between the wall panel 30A for the first living room and the wall panel 30B for the second living room forming the general portion of the boundary wall 100.

FIG. 1 is a cross-sectional view in which the vertical base piece 15 is present, whereas FIG. 2 is a cross-sectional view in which the vertical base piece 15 is not present (at a position sandwiched between the upper and lower vertical base pieces 15). ..

Returning to FIG. 1, in the boundary wall 100 having a pillar shape, as shown in the figure, since there are interfaces where a plurality of wall panels 30A, 32A, and 34A for the first living room come into contact with each other, the occurrence occurred in the first living room. Sound easily penetrates through these interfaces in the X1 direction and the X1'direction and enters the gap G around the pillar 10. As shown on the left side of the pillar 10, the sound that has entered the gap G around the pillar 10 is transmitted in the X2 direction via the vertical base piece 15 that forms the sound bridge, and the wall panel 30B for the second living room is transmitted. , 32B, 34B permeate the interface where they come into contact with each other in the X3 direction or the X3'direction, and easily leak into the second living room.

On the other hand, as shown in FIG. 2, in the cross section in which the vertical base piece 15 serving as the sound bridge does not exist, the sound entering the gap G around the pillar 10 causes the gap G around the pillar 10 to move to the second living room X5. It permeates in the direction, and permeates the interface between the wall panels 30B, 32B, and 34B for the second living room in the X3 direction and the X3'direction, and easily leaks to the second living room. Although it is explained that the sound of the first living room leaks to the second living room in FIGS. 1 and 2, the sound of the second living room also leaks to the first living room.

As described above, in the boundary wall 100 having a pillar shape, even in the cross section in which the vertical base piece 15 serving as the sound bridge exists and in the cross section in which the vertical base piece 15 serving as the sound bridge does not exist, from one of the living rooms. There is a problem that the sound that has entered the gap G around the pillar 10 permeates the gap G and leaks to the other living room, so that the sound insulation performance can be deteriorated.

Here, a drywall (a drywall) including a foundation member arranged along a partition line partitioning an adjacent first space and a second space, and a surface member fixed to one surface side and the other surface side of the foundation member, respectively. Boundary walls and partition walls) have been proposed. More specifically, the foundation member has a plurality of first studs arranged at intervals along the partition line by a weak shaft arrangement structure on the first space side, and a weak shaft arrangement structure on the second space side. Includes a plurality of second studs that are spaced apart along a partition line so that they overlap with a first stud that is more adjacent to each other with a predetermined gap in the front and back directions (eg, Patent Document 1). reference).

Japanese Unexamined Patent Publication No. 2014-118777

According to the drywall described in Patent Document 1, both sound insulation performance and wall strength can be achieved without increasing the thickness of the wall. However, as described above, in the partition wall having a pillar shape, the sound of one of the living rooms enters the gap around the pillar from the contact surface between the wall panels for living rooms, and the sound is transmitted through the sound bridge and the gap is blocked. It does not disclose the means for eliminating the leakage of sound to the other room due to the transmission of sound through the room.

The present invention has been made in view of the above problems, and in a partition wall having a pillar shape, the sound of one of the living rooms enters the gap around the pillar from the contact surface between the wall panels for the living room to form a sound bridge. It is an object of the present invention to provide a partition wall capable of eliminating sound leakage to the other living room by transmitting sound through a gap or transmitting sound through a gap.

In order to achieve the above object, one aspect of the partition wall according to the present invention is
It is a partition wall that separates the adjacent first and second rooms.
The partition wall includes a pillar, a first stud and a second stud arranged around the pillar with a gap from each other, and a wall panel for the first living room and a wall panel for the second living room. And
A part of the pillar projects to the indoor side of both the first living room and the second living room.
A first soundproof base material is arranged over the pillar and the first stud around the pillar and fixed to the first stud, and the wall panel for the first living room is attached to the first soundproof base material. Pillar
A second soundproof base material is arranged over the pillar and the second stud around the pillar and fixed to the second stud, and the wall panel for the second living room is attached to the second soundproof base material. It is characterized by being.

According to this aspect, the soundproof base material is arranged and fixed to the studs over the pillar and the studs around the pillar, and the wall panel (interior material) for the living room is attached to the soundproof base material. As a result, sound leakage from the interface between the plurality of living room wall panels can be shielded by the soundproof base material. More specifically, for example, the presence of the soundproof base material at a position where the sound generated in one of the living rooms is transmitted to the gap around the pillar through the interface between the plurality of living room wall panels. Sound transmission at the interface can be shielded by a soundproof base material. In this way, since the transmission of sound through the gaps around the pillars is insulated, it is possible to eliminate the problem of sound passing through the gaps around the pillars and leaking to the other living room. Further, even if the sound is transmitted through the gap around the pillar, the soundproofing base material on the other living room side blocks the sound from leaking to the other living room, so that the sound may leak to the other living room as well. It will be resolved.

Further, since a plurality of wall panels for living rooms around the pillars can be attached to the soundproof base material, the wall panels for living rooms can be integrated by the soundproof base material. That is, in a partition wall having a pillar shape, a flat wall panel for a living room is arranged so as to straddle the pillar and attached to the pillar and the studs on the left and right thereof, like a general partition wall. Therefore, a plurality of wall panels for living rooms are arranged around the pillars so as to adapt to the pillar shape while being in contact with each other. At this time, since the pillars and the studs are arranged apart from each other, it may take a lot of construction work to individually attach the plurality of living room wall panels to the pillars and the studs. In this embodiment, since the soundproof base material having a cross-sectional shape corresponding to the pillar shape is fixed to the studs on the left and right sides of the pillar, a plurality of wall panels for living rooms can be efficiently attached to the soundproof base material. ..

Further, in another aspect of the partition wall according to the present invention, two first studs and two second studs are provided at the left and right positions of the pillar.
The first soundproofing base material having a hat-shaped cross section is arranged over the first studs on the left and right across the pillar.
It is characterized in that the second soundproof base material having a hat-shaped cross section is disposed across the pillars and across the left and right second studs.

According to this aspect, in the general part of the partition wall, the first soundproof base material and the second soundproof base material having a hat-shaped cross section are arranged on the left and right first studs and second studs, respectively, across the pillars. By being provided, it is possible to realize sound insulation in the general part of the partition wall and efficient installation of the wall panel for the living room.

Further, in another aspect of the partition wall according to the present invention, the first stud and the second stud are provided at the lateral position on the indoor side of the pillar and the lateral position on the outer wall side of the pillar. Has been
The first soundproof base material having a W-shaped cross section is arranged over the two first studs straddling the pillar.
It is characterized in that the second soundproof base material having a W-shaped cross section is arranged over the two second studs straddling the pillar.

According to this aspect, when there is a pillar shape at the joint between the partition wall and the outer wall, the cross-sectional shape is W-shaped over the studs at the side position on the indoor side of the pillar and the side position on the outer wall side of the pillar. By disposing the soundproof base material, it is possible to realize sound insulation at the end portion of the partition wall on the outer wall side and efficient installation of the wall panel for the living room.

Further, another aspect of the partition wall according to the present invention is characterized in that the first soundproof base material and the second soundproof base material are formed of a steel plate.

According to this aspect, by applying the soundproofing base material formed of the steel sheet, the steel sheet is relatively lightweight and rigid, so that high sound insulation is achieved. In addition, by disposing a soundproof base material made of steel plate on the indoor side of the pillar, the pillar can be protected against hot air at the time of a fire in the room, and the fire resistance of the pillar can be improved. Can be done. In particular, the hat-shaped and W-shaped steel plates extend not only to the indoor side of the column but also to the left and right studs of the column, which not only protects the indoor side of the column from hot air. , The left and right sides of the pillar can also be protected from hot air, thus the entire pillar can be protected from hot air. As described above, the steel plate has suitable rigidity for fixing a plurality of interior materials so as to be applied to a column type, has excellent sound insulation performance, and has fire resistance that can protect the column even with hot air of, for example, about 1000 ° C. Since it is a member, and because it is a general-purpose product, the material cost is not high, and the like, it is a suitable member for the partition wall of this embodiment.

In addition, another aspect of the partition wall according to the present invention is characterized in that a sound absorbing material is arranged around the pillar.

According to this aspect, since the sound absorbing material is arranged in the gap around the pillar, the sound insulating performance by the soundproofing base material and the sound absorbing performance by the sound absorbing material are combined, and the sound absorbing performance from one living room to the other living room is combined. Sound leakage can be eliminated even more effectively. When the general portion of the partition wall is filled with a sound absorbing material formed of glass wool or the like, the sound absorbing material of the same material can be filled around the pillar.

As can be understood from the above description, according to the partition wall of the present invention, in the partition wall having a pillar shape, the sound of one living room enters the gap around the pillar from the contact surface between the wall panels for living rooms. The sound transmission through the sound bridge and the sound transmission through the gap can eliminate the sound leakage to the other room.

It is a cross-sectional view of an example of a boundary wall included in a partition wall having a conventional pillar shape, in which sound is transmitted from the first room to the second room through a sound bridge connecting the pillar and the stud. It is a figure which shows. It is a cross-sectional view corresponding to FIG. 1, and is a view which shows the state which the sound is transmitted from the 1st living room to the 2nd living room through the gap between a pillar and a stud. It is sectional drawing of an example of the partition wall which concerns on 1st Embodiment. It is a perspective view of an example of the first soundproof base material (or the second soundproof base material). It is sectional drawing of the modification of the partition wall which concerns on 1st Embodiment. It is sectional drawing of an example of the partition wall which concerns on 2nd Embodiment. It is a perspective view of an example of the first soundproof base material (or the second soundproof base material). It is sectional drawing of the modification of the partition wall which concerns on 2nd Embodiment.

Hereinafter, the wall structure according to each embodiment will be described with reference to the attached drawings. In the present specification and the drawings, substantially the same components may be designated by the same reference numerals to omit duplicate explanations.

[Partition wall according to the first embodiment]
First, an example of the partition wall according to the first embodiment will be described with reference to FIGS. 3 and 4. Here, FIG. 3 is a cross-sectional view of an example of the partition wall according to the first embodiment, and FIG. 4 is a perspective view of an example of the first soundproof base material (or the second soundproof base material). Hereinafter, in FIG. 3 and the like, the boundary wall included in the partition wall will be taken up and described.

The boundary wall 200 shown in FIG. 3 is a general part of a boundary wall having a pillar shape that separates the first living room and the second living room, and FIG. 3 shows the pillar and its surroundings in an enlarged manner. The boundary wall 200 has a pillar 10 formed of a square steel pipe or the like, and a first stud 20A and a second stud 20B arranged with a gap between the pillar 10. The first stud 20A and the second stud 20B are formed of a shaped steel material such as channel steel (including channel steel with a lip). Unlike the conventional boundary wall 100 having a pillar shape shown in FIG. 1, in the boundary wall 200, the vertical base piece 15 forming the sound bridge does not exist, and the pillar 10 and the first stud 20A and the second stud 20B are separated from each other. It is completely cut off.

The first stud 20A and the second stud 20B are arranged with a gap so as not to come into contact with each other to form a sound bridge. A plurality of the first studs 20A and the second studs 20B are arranged at intervals in the width direction of the boundary wall 200, and the plurality of first studs 20A have wall panels for the first living room of the general part of the boundary wall. 30A is fixed by screws 19, and the wall panel 30B for the second living room of the general part of the boundary wall is fixed to the plurality of second studs 20B by screws 19. A plurality of first studs 20A arranged at intervals in the width direction of the boundary wall 200 are attached to runners (not shown) above and below, and a plurality of first studs 20A arranged at intervals. Similarly, the second stud 20B is attached to separate runners (not shown) at the top and bottom. Then, a sound absorbing material 50 formed of, for example, glass wool is filled between the wall panel 30A for the first living room and the wall panel 30B for the second living room.

The boundary wall 200 has a pillar shape, and a first soundproof base material 60A having a hat-shaped cross section is arranged over a set of first studs 20A on the left and right straddling the pillar 10. As shown in FIG. 4, the first soundproof base material 60A (and the second soundproof base material 60B) is formed by bending a steel plate having a rectangular shape in a plan view so that the cross-sectional shape becomes a hat shape, and is formed on the left and right sides. It has a first piece 61, a second piece 62 orthogonal to the first piece 61, and a third piece 63 connecting the left and right second pieces 62. The first soundproof base material 60A and the second soundproof base material 60B may be formed of a hard resin or the like in addition to the steel plate, but they are as thin and hard as possible, have excellent sound insulation, and have heat insulating properties. It is preferable that it is made of a steel plate which is excellent in quality and inexpensive.

The wall panel 30A for the first living room of the general part extends to the second piece 62 orthogonal to the first piece 61 while in surface contact with the first piece 61 of the first soundproofing base material 60A, and is a wall for the first living room. The panel 30A and the first piece 61 are fixed to the first stud 20A by screws 19.

The narrow wall panel 32A for the first living room is in surface contact with the second piece 62, and the end thereof is in contact with the wall panel 30A for the first living room and is fixed to the second piece 62 by a screw 19. Has been done.

Further, the first living room wall panel 34A straddling the left and right first living room wall panels 32A is in surface contact with the third piece 63, and is fixed to the third piece 63 by a screw 19.

By disposing the hat-shaped first soundproofing base material 60A around the pillar 10 in this way, the plurality of wall panels 30A, 32A, 34A for the first living room around the pillar 10 are first soundproofed. It can be integrally attached to the base material 60A.

The wall panels 30A, 32A, and 34A for the first living room are formed of, for example, two gypsum boards or the like in order to ensure fire resistance. A structure similar to the structure on the first living room side is also applied on the second living room side. That is, a hat-shaped second soundproof base material 60B is arranged around the pillar 10, and wall panels 30B, 32B, 34B for the second living room are attached to the second soundproof base material 60B, and the second soundproof base material is attached. A plurality of wall panels 30B, 32B, and 34B for the second living room are integrated by 60B.

As is clear from FIG. 3, the first soundproof base material 60A and the second soundproof base material 60B corresponding to the pillar shape are fixed to the first studs 20A and the second studs 20B on the left and right sides of the pillar 10. , A plurality of wall panels 30A, 32A, 34A for the first living room and wall panels 30B, 32B, 34B for the second living room can be efficiently attached to the first soundproof base material 60A and the second soundproof base material 60B. it can.

When the interior material 30A or the like is formed from gypsum board, a cloth is generally attached to the side surface of the gypsum board on the indoor side after the joints of the gypsum board have been subjected to base adjustment such as putty treatment. .. Specifically, a cloth is attached to the side surfaces of the first living room wall panels 30A, 32A, 34A on the indoor side so as to be continuous, and similarly, on the indoor side of the second living room wall panels 30B, 32B, 34B. A cloth is attached so as to be continuous on the side surface. If a plurality of interior materials 30A and the like are not integrally fixed to a common member, the interior materials 30A, 32A, and 34A (or the interior materials 30B, 32B, and 34B) that come into contact with each other are relatively displaced to form a cloth. Although wrinkles are likely to occur, it is possible to suppress the occurrence of such cross wrinkles on the boundary wall 200.

As already described with reference to FIG. 1, in the conventional boundary wall 100 having a pillar shape, since there are interfaces where a plurality of wall panels 30A, 32A, 34A for the first living room come into contact with each other, for example, the first The sound generated in the single room passes through these interfaces, enters the gap G around the pillar 10, is transmitted through the vertical base piece 15 forming the sound bridge, and is transmitted through the wall panels 30B and 32B for the second room. It easily leaks into the second living room through the interface where the 34Bs come into contact with each other.

However, in the boundary wall 200, the first soundproof base material 60A is arranged over the pillar 10 and the first stud 20A around the pillar 10 and fixed to the first stud 20A, and the first soundproof base material. By attaching the interior materials 30A, 32A, 34A to the 60A, the sound transmitted in the X1 direction and the X1'direction through the interface between the plurality of interior materials 30A, 32A, 34A is transmitted to the first soundproof base material 60A. Can be shielded by.

Similarly, on the second living room side as well, the sound transmitted in the X1 direction and the X1'direction through the interface between the plurality of interior materials 30B, 32B, and 34B can be shielded by the second soundproof base material 60B.

In this way, the transmission of sound through the gap G around the pillar 10 is shielded by the first soundproof base material 60A and the second soundproof base material 60B, so that the sound generated in one of the living rooms is a sound bridge or It is eliminated that the sound permeates through the gap G and leaks to the other living room.

Further, FIG. 5 is a cross-sectional view of a modified example of the partition wall (boundary wall) according to the first embodiment. In the boundary wall 200B shown in the figure, the gap G around the pillar 10 is filled with a sound absorbing material 50A formed of glass wool or the like.

According to the boundary wall 200A, since the sound absorbing material 50A is arranged in the gap G around the pillar 10, the sound insulating performance by the first soundproofing base material 60A and the second soundproofing base material 60B and the sound absorbing material by the sound absorbing material 50A Combined with the performance, sound leakage from one room to the other room can be eliminated even more effectively. The sound absorbing material 50A may have heat insulating performance in addition to sound absorbing performance.

[Partition wall according to the second embodiment]
Next, an example of the partition wall according to the second embodiment will be described with reference to FIGS. 6 and 7. Here, FIG. 6 is a cross-sectional view of an example of the partition wall according to the second embodiment, and FIG. 7 is a perspective view of an example of the first soundproof base material (or the second soundproof base material). Hereinafter, as in FIG. 3 and the like, the boundary wall included in the partition wall will be taken up and described.

The boundary wall 200B shown in FIG. 6 is a connecting portion between the boundary wall and the outer wall having a pillar shape separating the first living room and the second living room, and FIG. 6 shows the pillar and its surroundings in an enlarged manner.

As shown in the figure, a pillar 10 projects from the outer wall toward the living room to form a pillar shape, and a general portion of the boundary wall already shown in FIG. 5 extends to the right side of the pillar 10. The first stud 20A and the second stud 20B formed of channel steel and the first stud 20B formed of a square steel pipe are formed at a lateral position on the indoor side of the column 10 and a lateral position on the outer wall side of the column 10, respectively. A stud 21A and a second stud 21B are provided. Then, the first soundproof base material 60C having a W-shaped cross section is arranged over the two first studs 20A and 21A straddling the pillar 10, and similarly, the two second studs 20B, straddling the pillar 10. A second soundproofing base material 60D having a W-shaped cross section is arranged over 21B.

Here, to explain the structure of the outer wall, a frame member 77 in which a shaped steel material (grooved steel in the illustrated example) is assembled in a frame shape is arranged on the outdoor side of the column 10, and is inside the frame member 77. Is provided with a heat insulating material 80 formed by filling glass wool, rock wool or the like, and an underlaying material 75 formed of a glass wool board or the like is provided on the outdoor side of the heat insulating material 80. There is. The interface of the vertical rails forming the left and right frame-shaped frame members 77 is arranged at positions corresponding to the vertical joints 72 of the outer wall, and the left and right vertical rails have their own underlayment material 75 and polystyrene. The exterior base material 74 formed of a foam plate or the like is fixed by screws 78.

The exterior material 71 is attached to the outdoor side of the left and right exterior base materials 74, and the water blocking material 73 by a dry gasket or the like is fitted in the vertical joint 72 between the left and right exterior materials 71. The water blocking material 73 projects two sets of engaging water blocking pieces to the left and right in the axial direction, and by engaging one set of engaging water stopping pieces with the end faces of the left and right exterior materials 71, the primary water stopping portion And another set of engaging water stop pieces are engaged with the underlaying material 75 to form a secondary water stop portion. The exterior material 71 is composed of an exterior panel formed of a ceramic-based or metal-based siding board. Further, a ventilation layer 76 that communicates with the outside air is formed between the exterior material 71 and the underlaying material 75. Further, although an air heat insulating layer is formed between the heat insulating material 80 and the interior material 36A, one or two filled heat insulating material layers may be formed instead of the air heat insulating layer.

As shown in FIG. 7, the first soundproof base material 60C (and the second soundproof base material 60D) is formed by bending a steel plate having a rectangular shape in a plan view so that the cross-sectional shape becomes W-shaped, and is formed at the left end. It has a first piece 64, a second piece 65 orthogonal to the first piece 64, a third piece 66 orthogonal to the second piece 65, and a fourth piece 65 orthogonal to the third piece 66. The piece 64 and the third piece 66 are in a parallel relationship with each other, and the second piece 65 and the fourth piece 67 are in a parallel relationship with each other.

The wall panel 36A for the first living room, which is the interior material of the outer wall, extends to the second piece 65 orthogonal to the first piece 64 while in surface contact with the first piece 64 of the first soundproof base material 60C. The living room wall panel 36A and the first piece 64 are fixed to the first stud 21A by screws 19.

The wall panel 34A for the first living room is in surface contact with the second piece 65, and the end portion thereof is in contact with the wall panel 36A for the first living room and is fixed to the second piece 65 by a screw 19. ..

Further, a narrow wall panel 32A for the first living room straddling the left and right wall panels 34A and 30A for the first living room is in surface contact with the third piece 66, and is fixed to the third piece 66 by a screw 19. There is.

Further, the first living room wall panel 30A forming the general part of the boundary wall extends to the third piece 66 while in surface contact with the fourth piece 67, and the first living room wall panel 30A and the fourth piece 67 It is fixed to the first stud 20A by a screw 19.

As described above, by disposing the W-shaped first soundproofing base material 60C around the pillar 10 at the connecting portion with the outer wall, a plurality of first living room wall panels 30A and 32A around the pillar 10 , 34A, 36A can be integrally attached to the first soundproof base material 60C. A structure similar to the structure on the first living room side is also applied on the second living room side. That is, a W-shaped second soundproof base material 60D is arranged around the pillar 10, and wall panels 30B, 32B, 34B, 36B for the second living room are attached to the second soundproof base material 60D, and the second soundproof base material 60D is attached. A plurality of wall panels 30B, 32B, 34B, and 36B for the second living room are integrated by the base material 60D.

As is clear from FIG. 6, the first soundproof base material 60C and the second soundproof base material 60D corresponding to the pillar shape are fixed to the first studs 20A, 21A and the second studs 20B, 21B on the left and right sides of the pillar 10. By doing so, the plurality of wall panels 30A, 32A, 34A, 36A for the first living room and the wall panels 30B, 32B, 34B, 36B for the second living room can be used as the first soundproof base material 60C and the second soundproof base material 60D. On the other hand, it can be installed efficiently.

Further, the first soundproof base material 60C is arranged over the pillar 10 and the first studs 20A and 21A around the pillar 10 and fixed to the first studs 20A and 21A, and is fixed to the first soundproof base material 60C. By attaching the interior materials 30A, 32A, 34A, 36A, the sound transmitted in the X6 direction, the X6'direction, and the X6'direction through the interface between the plurality of interior materials 30A, 32A, 34A, 36A can be produced. It can be shielded by the first soundproof base material 60C.

Similarly, on the second living room side, the sound transmitted in the X6 direction, the X6'direction, and the X6'direction through the interface between the plurality of interior materials 30B, 32B, 34B, and 36B is transmitted by the second soundproof base material 60D. Can be shielded.

In this way, the transmission of sound through the gap G around the pillar 10 is insulated by the first soundproof base material 60C and the second soundproof base material 60D, so that the sound generated in one of the living rooms is a sound bridge or It is eliminated that the sound permeates through the gap G and leaks to the other living room.

Further, FIG. 8 is a cross-sectional view of a modified example of the partition wall (boundary wall) according to the second embodiment. In the boundary wall 200C shown in the figure, the gap G around the pillar 10 is filled with a sound absorbing material 50A formed of glass wool or the like.

According to the boundary wall 200C, since the sound absorbing material 50A is arranged in the gap G around the pillar 10, the sound insulating performance by the first soundproofing base material 60C and the second soundproofing base material 60D and the sound absorbing material by the sound absorbing material 50A Combined with the performance, sound leakage from one room to the other room can be eliminated even more effectively.

It should be noted that the configuration or the like described in the above embodiment may be another embodiment in which other components are combined, and the present invention is not limited to the configuration shown here. .. This point can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form thereof.

10: Column (square steel pipe), 15: Vertical base piece, 17: Vertical crosspiece, 19: Screw (fixing means), 20A, 21A: First stud, 20B, 21B: Second stud, 30A, 32A, 34A, 36A : First living room wall panel (interior material), 30B, 32B, 34B, 36B: Second living room wall panel (interior material), 50, 50A: Sound absorbing material, 60A, 60C: First soundproofing base material, 60B, 60D: Second soundproof base material, 71: Exterior material, 72: Vertical joint, 73: Gasket, 74: Spacer, 75: Underlay material, 76: Ventilation layer, 77: Frame member, 78: Screw (fixing means), 80: Insulation material, 200, 200A, 200B, 200C: Partition wall (boundary wall), G: Gap

Claims (5)

It is a partition wall that separates the adjacent first and second rooms.
The partition wall includes a pillar, a first stud and a second stud arranged around the pillar with a gap from each other, and a wall panel for the first living room and a wall panel for the second living room. And
A part of the pillar projects to the indoor side of both the first living room and the second living room.
A first soundproof base material is arranged over the pillar and the first stud around the pillar and fixed to the first stud, and the wall panel for the first living room is attached to the first soundproof base material. Pillar
A second soundproof base material is arranged over the pillar and the second stud around the pillar and fixed to the second stud, and the wall panel for the second living room is attached to the second soundproof base material. A partition wall that is characterized by being. Two of the first stud and the second stud are provided at the left and right positions of the pillar.
The first soundproofing base material having a hat-shaped cross section is arranged over the first studs on the left and right across the pillar.
The partition wall according to claim 1, wherein the second soundproof base material having a hat-shaped cross section is disposed across the left and right second studs across the pillar. Two of the first stud and the second stud are provided at the side position on the indoor side of the pillar and the side position on the outer wall side of the pillar.
The first soundproof base material having a W-shaped cross section is arranged over the two first studs straddling the pillar.
The partition wall according to claim 1, wherein the second soundproof base material having a W-shaped cross section is disposed over the two second studs straddling the pillar. The partition wall according to any one of claims 1 to 3, wherein the first soundproof base material and the second soundproof base material are formed of a steel plate. The partition wall according to any one of claims 1 to 4, wherein a sound absorbing material is arranged around the pillar.