JP2022041604A

JP2022041604A - Sound insulation structure and building

Info

Publication number: JP2022041604A
Application number: JP2020146907A
Authority: JP
Inventors: 和良渡部; Kazuyoshi Watabe
Original assignee: Asahi Kasei Homes Corp
Current assignee: Asahi Kasei Homes Corp
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2022-03-11

Abstract

To provide a sound insulation structure that realizes improvement of sound insulation of a building and a building with improved sound insulation.SOLUTION: A sound insulation structure 100 includes two long-axis shape ceiling joists 5, 5 in which edge surfaces 51, 51 face each other, and a base receiving member 1 that supports the ceiling joists 5, 5 in a state where the edge surfaces 51, 51 are separated from each other. The base receiving member 1 includes a first support body 11 that supports an end portion of one ceiling joist 5 in the longitudinal direction, a second support body 12 that supports an end portion of the other ceiling joist 5 in the longitudinal direction, and a sound insulating material 3 arranged between the first support body 11 and the second support body 12.SELECTED DRAWING: Figure 2

Description

本発明は、遮音構造及び建物に関する。 The present invention relates to a sound insulating structure and a building.

特許文献１には、二重天井下地構造及びその施工方法が記載されている。この二重天井下地構造は、野縁を支持する野縁受けと野縁受け金具を備えている。野縁受けは、２本１組の断面略コ字状鋼部材で構成されている。断面略コ字状鋼部材は、互いを背合わせで配向し、対面する背面板の間にスペーサを介在させて背面板間にスリット状溝を形成している。野縁受け金具は通孔が形成された水平面状の固定座板部と、鉛直面状の挿入板部とを備えている。野縁受け金具は、固定座板部の通孔にネジボルトを挿通される。そして、固定座板部を跨ぐ両側に螺設された固定調整用ナットによりネジボルトに固定される。野縁受けと野縁受け金具とは、野縁受けのスリット状溝に野縁受け金具の挿入板部を挿入した状態で、外側から螺入されたビスによって相互に連結される。野縁は、野縁受けの開口溝部にその端部を挿入することにより、野縁受けに直交する方向に横架させる。 Patent Document 1 describes a double ceiling base structure and a construction method thereof. This double-ceiling base structure is equipped with a field edge holder and a field edge support metal fitting to support the field edge. The field edge holder is composed of a set of two steel members having a substantially U-shaped cross section. The substantially U-shaped steel members in cross section are oriented back to back with each other, and a spacer is interposed between the back plates facing each other to form a slit-shaped groove between the back plates. The field edge receiving metal fitting includes a horizontal fixed seat plate portion in which a through hole is formed and a vertical facing insertion plate portion. A screw bolt is inserted into the through hole of the fixed seat plate portion of the field edge receiving metal fitting. Then, it is fixed to the screw bolt by the fixing adjustment nuts screwed on both sides straddling the fixed seat plate portion. The field edge receiver and the field edge receiving metal fitting are connected to each other by screws screwed in from the outside in a state where the insertion plate portion of the field edge receiving metal fitting is inserted into the slit-shaped groove of the field edge receiving metal fitting. The field edge is laid horizontally in a direction orthogonal to the field edge receiver by inserting its end into the opening groove portion of the field edge receiver.

特開２０００－２５７２０５号公報Japanese Unexamined Patent Publication No. 2000-257205

特許文献１に記載されたような構造では、野縁受けの断面略コ字状鋼部材のそれぞれに野縁が挿入されて、一対の野縁の小口面同士が対向して配置された状態で、一対の野縁が野縁受けを介して近接した状態で接続される。このように野縁が接続されると、音などの振動が、野縁受けを介して一方の野縁から他方の野縁へ容易に伝達してしまう。そのため、このような構造を採用した建物では、十分な遮音性能を実現できない場合があった。 In the structure as described in Patent Document 1, the field edges are inserted into each of the substantially U-shaped steel members having a cross section of the field edge receiver, and the edge surfaces of the pair of field edges are arranged so as to face each other. , A pair of field edges are connected in close proximity via a field edge receiver. When the field edges are connected in this way, vibrations such as sound are easily transmitted from one field edge to the other field edge via the field edge receiver. Therefore, in a building adopting such a structure, sufficient sound insulation performance may not be realized.

本発明は、かかる実状に鑑みて為されたものであって、その目的は、建物内の遮音性の向上を実現する遮音構造及び遮音性が向上された建物を提供することにある。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a sound insulation structure that realizes improvement of sound insulation in a building and a building with improved sound insulation.

上記目的を達成するための本発明に係る遮音構造は、
小口面同士が対向して配置される長軸状の２つの天井下地部材と、
前記小口面同士が離間した状態で２つの前記天井下地部材を支持する下地受部材と、を備え、
前記下地受部材は、
一方の前記天井下地部材の長手方向における端部を支持する第一支持体と、
他方の前記天井下地部材の長手方向における端部を支持する第二支持体と、
前記第一支持体と前記第二支持体との間に配置されている遮音材と、を有する。 The sound insulation structure according to the present invention for achieving the above object is
Two long-axis ceiling base members arranged so that the fore-edge surfaces face each other,
A base receiving member that supports the two ceiling base members in a state where the edge surfaces are separated from each other is provided.
The base receiving member is
A first support that supports an end portion of the ceiling base member in the longitudinal direction,
A second support that supports the end of the other ceiling base member in the longitudinal direction, and
It has a sound insulating material disposed between the first support and the second support.

本発明に係る遮音構造では、更に、
前記第一支持体及び前記第二支持体は、前記小口面同士の間に配置されていてもよい。 In the sound insulation structure according to the present invention, further
The first support and the second support may be arranged between the edge surfaces.

本発明に係る遮音構造では、更に、
前記下地受部材は、前記第一支持体と前記第二支持体とを連結する連結部を有し、
前記連結部は、
天井裏に吊下げ固定され、
前記第一支持体と前記第二支持体との間に配置されていてもよい。 In the sound insulation structure according to the present invention, further
The base receiving member has a connecting portion for connecting the first support and the second support.
The connecting part is
Suspended and fixed behind the ceiling,
It may be arranged between the first support and the second support.

上記目的を達成するための本発明に係る建物は、
小口面同士が対向して配置される長軸状の２つの天井下地部材と、
前記天井下地部材の長手方向と交差する方向に延在し、前記小口面同士が離間した状態で２つの前記天井下地部材の長手方向における端部を支持する長軸状の支持体と、
前記支持体の長手方向に沿って立設されている間仕切壁と、を備えている。 The building according to the present invention for achieving the above object is
Two long-axis ceiling base members arranged so that the fore-edge surfaces face each other,
A long-axis support that extends in a direction intersecting the longitudinal direction of the ceiling substrate member and supports the ends of the two ceiling substrate members in the longitudinal direction in a state where the edge surfaces are separated from each other.
It is provided with a partition wall that is erected along the longitudinal direction of the support.

本発明に係る建物では、更に、
前記間仕切壁は、上端部が前記天井下地部材に固定された界壁であってもよい。 In the building according to the present invention, further
The partition wall may be a boundary wall whose upper end is fixed to the ceiling base member.

本発明に係る建物では、更に、
前記天井下地部材に支持された天井材を更に備え、
前記間仕切壁は、上端部が前記天井材を介して前記天井下地部材固定されている住戸内仕切壁であってもよい。 In the building according to the present invention, further
Further provided with a ceiling material supported by the ceiling base member,
The partition wall may be a partition wall in a dwelling unit whose upper end is fixed to the ceiling base member via the ceiling material.

建物内の遮音性の向上を実現する遮音構造及び遮音性が向上された建物を提供することができる。 It is possible to provide a sound insulation structure that realizes improvement of sound insulation in a building and a building with improved sound insulation.

建物の構造を説明する側断面図である。It is a side sectional view explaining the structure of a building. 建物における遮音構造及び界壁の側断面図である。It is a side sectional view of a sound insulation structure and a boundary wall in a building. 建物の構造を説明する、図１のＩＩＩ－ＩＩＩ断面図である。FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1 illustrating the structure of the building. 野縁、支持体、及び連結具の態様を説明する斜視図である。It is a perspective view explaining the aspect of a field edge, a support, and a connector. 建物における遮音構造及び住戸内仕切壁の側断面図である。It is a side sectional view of a sound insulation structure in a building and a partition wall in a dwelling unit.

図面に基づいて、本発明の実施形態に係る遮音構造及び建物について説明する。 A sound insulation structure and a building according to an embodiment of the present invention will be described with reference to the drawings.

（全体構成の説明）
図１、図２には、本実施形態に係る遮音構造１００を採用した建物Ｂを示している。建物Ｂは、例えば鉄骨造の骨組みを有する複数階建ての住宅である。建物Ｂには、複数の居室が形成される。建物Ｂは、鉄筋コンクリート造の基礎と、柱や梁などの骨組部材で構成された骨組架構と、壁や床などを形成するパネルとを有し、基礎（図示せず）に固定された上部構造体とで構成される。骨組部材やパネルは、予め規格化（標準化）されたものとすることができる。この場合、骨組部材などを予め工場にて製造して建築現場に搬入し、建物Ｂを組み立てることができる。以下の説明では、鉛直方向における上向き側を単に、上もしくは上方などといい、その逆を下もしくは下方などと言う。 (Explanation of the overall configuration)
1 and 2 show a building B adopting the sound insulation structure 100 according to the present embodiment. Building B is, for example, a multi-story house having a steel frame. A plurality of living rooms are formed in the building B. Building B has a reinforced concrete foundation, a skeleton frame composed of skeleton members such as columns and beams, and panels forming walls and floors, and has an upper structure fixed to the foundation (not shown). It is composed of the body. The skeleton members and panels can be standardized in advance. In this case, the skeleton member or the like can be manufactured in advance at the factory and carried to the construction site to assemble the building B. In the following description, the upward side in the vertical direction is simply referred to as upward or upward, and the opposite is referred to as downward or downward.

図１に示すように、建物Ｂは、居室となる空間Ｓを区画する床材７３、天井材８３及び間仕切壁６と、床材７３や間仕切壁６を下方から支持する床下地材７２と、床下地材７２が載置された床スラブ７１と、天井材８３を支持する長軸状の部材である野縁５（天井下地部材の一例）と、野縁５を支持する下地受部材１と、下地受部材１が吊下げられ、上階の床スラブである天井スラブ８１を下方から支持する梁部８０と、を備えている。下地受部材１は、対になる（少なくとも二つの）野縁５，５を支持する支持体１０や遮音材３を有する。野縁５及び天井材８３の上部には、これらの上面を覆うようにロックウールなどの吸音材８４が敷かれている。なお、図１は、野縁５の長手方向（延在方向）に沿う、遮音構造１００の断面を含む建物Ｂの側断面図である。 As shown in FIG. 1, the building B includes a floor material 73, a ceiling material 83, and a partition wall 6 for partitioning a space S to be a living room, and a floor base material 72 for supporting the floor material 73 and the partition wall 6 from below. A floor slab 71 on which a floor base material 72 is placed, a field edge 5 (an example of a ceiling base member) which is a long-axis member that supports the ceiling material 83, and a base receiving member 1 that supports the field edge 5. The base receiving member 1 is suspended from the ceiling slab 81, which is a floor slab on the upper floor, and is provided with a beam portion 80 that supports the ceiling slab 81 from below. The base receiving member 1 has a support 10 and a sound insulating material 3 that support a pair of (at least two) field edges 5, 5. A sound absorbing material 84 such as rock wool is laid on the upper part of the field edge 5 and the ceiling material 83 so as to cover the upper surfaces thereof. Note that FIG. 1 is a side sectional view of the building B including a cross section of the sound insulation structure 100 along the longitudinal direction (extending direction) of the field edge 5.

図１、図２に示すように、遮音構造１００は建物Ｂの一部の構造部分である。図２に示すように、遮音構造１００には、対になる野縁５，５と、下地受部材１とが含まれる。野縁５，５は、その小口面５１，５１同士が、離間し、かつ、対向して配置されている。遮音構造１００は、小口面５１，５１同士を離間させることで、野縁５を介した天井における音の伝達（伝播）、例えば、隣接する居室間の音の伝達を低減もしくは遮断し、建物Ｂでの居室間の遮音性の向上を実現する。小口面５１，５１の間には遮音材３が配置されており、野縁５，５間の音の振動の伝達が低減もしくは遮断される。これにより遮音構造１００は、野縁５を介した隣接する居室間の音の伝達を低減もしくは遮断し、建物Ｂでの室間の遮音性の向上を実現する。なお、図２は、野縁５の長手方向に沿う、遮音構造１００及びその周囲の側断面図である。以下では、音の振動の伝達の低減及び遮断を包括して、単に、音の伝達の抑制、と記載する場合がある。 As shown in FIGS. 1 and 2, the sound insulation structure 100 is a part of the structural part of the building B. As shown in FIG. 2, the sound insulation structure 100 includes a pair of field edges 5 and 5 and a base receiving member 1. The field edges 5 and 5 are arranged so that the edge surfaces 51 and 51 are separated from each other and face each other. The sound insulation structure 100 reduces or blocks sound transmission (propagation) on the ceiling through the field edge 5, for example, sound transmission between adjacent living rooms by separating the edge surfaces 51 and 51 from each other, and the building B Achieves improved sound insulation between living rooms. A sound insulating material 3 is arranged between the edge surfaces 51 and 51, and the transmission of sound vibration between the field edges 5 and 5 is reduced or blocked. As a result, the sound insulation structure 100 reduces or blocks the transmission of sound between adjacent living rooms via the field edge 5, and improves the sound insulation between the rooms in the building B. Note that FIG. 2 is a side sectional view of the sound insulation structure 100 and its surroundings along the longitudinal direction of the field edge 5. In the following, it may be described simply as suppressing the transmission of sound, including the reduction and blocking of the transmission of vibration of sound.

（各部の説明）
図１に示すように、床スラブ７１及び天井スラブ８１は、スラブ材として例えば軽量気泡コンクリート（ＡＬＣ）などのパネル材（板材）を用いて形成されている。床スラブ７１上には、断熱材や捨て貼りなどの床下地材７２が敷設される。床下地材７２にはフローリング材などの床材７３が敷設されて居室の床面が形成されている。 (Explanation of each part)
As shown in FIG. 1, the floor slab 71 and the ceiling slab 81 are formed by using a panel material (plate material) such as lightweight cellular concrete (ALC) as the slab material. A floor base material 72 such as a heat insulating material or a waste material is laid on the floor slab 71. A flooring material 73 such as a flooring material is laid on the floor base material 72 to form a floor surface of a living room.

図１、図２に示すように、天井材８３は居室の天井を形成する板材であり、例えば石膏ボードやベニヤ板が用いられる。天井材８３は、天井スラブ８１の下面側に配置されている。天井材８３と天井スラブ８１とで区画された空間を以下では天井裏と称する場合がある。天井材８３は、天井スラブ８１に対向する面側（天井裏側）に位置する野縁５により支持されている。天井材８３は、例えばネジやボルトで野縁５に固定される。天井材８３の室内側の表面には塗装や壁紙などの装飾が施されている。天井裏には、梁部８０、下地受部材１及び野縁５が配置されている。 As shown in FIGS. 1 and 2, the ceiling material 83 is a plate material forming the ceiling of the living room, and for example, gypsum board or veneer board is used. The ceiling material 83 is arranged on the lower surface side of the ceiling slab 81. The space partitioned by the ceiling material 83 and the ceiling slab 81 may be referred to as the attic below. The ceiling material 83 is supported by a field edge 5 located on the surface side (ceiling back side) facing the ceiling slab 81. The ceiling material 83 is fixed to the field edge 5 with screws or bolts, for example. The interior surface of the ceiling material 83 is decorated with paint and wallpaper. A beam portion 80, a base receiving member 1 and a field edge 5 are arranged behind the ceiling.

梁部８０は、鋼材等で形成された長軸状の部材である。本実施形態では、梁部８０はＨ鋼である。天井スラブ８１は、その下面を、水平方向に沿って延在する梁部８０の上フランジの上面に当接させた状態で、梁部８０に支持されている。建物Ｂでは、梁部８０は複数本配置されている。建物Ｂの複数本の梁部８０は、その長手方向が互いに平行する複数本の梁部８０を含む。 The beam portion 80 is a long-axis member made of a steel material or the like. In this embodiment, the beam portion 80 is made of H steel. The ceiling slab 81 is supported by the beam portion 80 in a state where the lower surface thereof is in contact with the upper surface of the upper flange of the beam portion 80 extending along the horizontal direction. In the building B, a plurality of beam portions 80 are arranged. The plurality of beam portions 80 of the building B include a plurality of beam portions 80 whose longitudinal directions are parallel to each other.

野縁５は、天井材８３の背面側（天井裏側）に配置され、天井材８３を支持する長軸状の部材である。野縁５は、例えば鋼材で形成された金属製で中空の角材である。野縁５は、長手方向を所定長さに規格化して形成することが好ましい。野縁５は、その長手方向が水平方向に沿い、且つ、下地受部材１を介して支持される梁部８０の長手方向に交差（本実施形態では直交）する方向になるように配置されている。 The field edge 5 is a long-axis member arranged on the back surface side (ceiling back side) of the ceiling material 83 and supporting the ceiling material 83. The field edge 5 is a metal hollow square lumber made of, for example, a steel material. It is preferable that the field edge 5 is formed by standardizing the longitudinal direction to a predetermined length. The field edge 5 is arranged so that its longitudinal direction is along the horizontal direction and intersects (orthogonally in the present embodiment) in the longitudinal direction of the beam portion 80 supported by the base receiving member 1. There is.

野縁５は、図３に示すように、天井裏において複数本が組み合わされて対になり、それらの対の列が複数列配置されている。野縁５のそれぞれの列は互いに、例えば等間隔で長手方向が平行に配列されている。なお、図３は、鉛直方向における野縁５と梁部８０との間の位置から下方を見た建物Ｂの水平断面図（図１のＩＩＩ－ＩＩＩ断面図）である。図３では、吸音材８４の図示は省略している。 As shown in FIG. 3, a plurality of field edges 5 are combined into a pair in the attic, and a plurality of rows of these pairs are arranged. Each row of field edges 5 is arranged parallel to each other in the longitudinal direction, for example, at equal intervals. Note that FIG. 3 is a horizontal cross-sectional view (III-III cross-sectional view of FIG. 1) of the building B viewed downward from the position between the field edge 5 and the beam portion 80 in the vertical direction. In FIG. 3, the sound absorbing material 84 is not shown.

建物Ｂでは、図２に示すように、二つの野縁５，５が、その小口面５１，５１同士を対向させた状態で隣接する一対となり、支持体１０で支持されている。対になる野縁５，５の小口面５１，５１同士は離間して配置されている。このように小口面５１，５１同士が離間されることで、対になる野縁５，５の一方から他方への音の伝達（以下、野縁５，５間の音の伝達と記載する）が抑制される。これにより、野縁５を介した天井における音の伝達が抑制される。以下では、離間する小口面５１，５１同士の間の部分を、単に野縁５，５の離間部分と記載する場合がある。 In the building B, as shown in FIG. 2, the two field edges 5 and 5 form a pair adjacent to each other with the edge surfaces 51 and 51 facing each other, and are supported by the support 10. The edge faces 51, 51 of the paired field edges 5, 5 are arranged apart from each other. By separating the edge surfaces 51 and 51 from each other in this way, sound is transmitted from one of the paired field edges 5 and 5 to the other (hereinafter, referred to as sound transmission between the field edges 5 and 5). Is suppressed. As a result, the transmission of sound on the ceiling through the field edge 5 is suppressed. In the following, the portion between the fore-edge surfaces 51 and 51 that are separated from each other may be simply referred to as the separated portion of the field edges 5 and 5.

本実施形態では、対になる野縁５，５の長手方向は略平行であり、その小口面５１，５１は、対になる野縁５，５の長手方向に略直交する面であり、小口面５１，５１同士は略平行に配置されている。本実施形態では、対になる野縁５，５それぞれの長手方向が一直線上になるように配置されている。 In the present embodiment, the longitudinal directions of the paired field edges 5 and 5 are substantially parallel, and the edge surfaces 51 and 51 are planes substantially orthogonal to the longitudinal direction of the paired field edges 5 and 5, and the edges are edges. The surfaces 51 and 51 are arranged substantially in parallel. In the present embodiment, the paired field edges 5 and 5 are arranged so that their longitudinal directions are in a straight line.

下地受部材１は、図２に示すように、複数の対になる野縁５，５を支持する支持体１０、対になる野縁５，５間の音の伝達を抑制する遮音材３及び支持体１０を吊り下げる連結具２（連結部の一例）を有する。下地受部材１は、対になる野縁５，５を離間した状態で支持することで、野縁５，５間の音の伝達を抑制できる。更に、下地受部材１は、遮音材３を備えることで、野縁５，５間の音の伝達を、より抑制できる。 As shown in FIG. 2, the base receiving member 1 includes a support 10 that supports a plurality of paired field edges 5, 5, a sound insulating material 3 that suppresses sound transmission between the paired field edges 5, and 5. It has a connecting tool 2 (an example of a connecting portion) for suspending the support 10. By supporting the paired field edges 5 and 5 in a separated state, the base receiving member 1 can suppress the transmission of sound between the field edges 5 and 5. Further, the base receiving member 1 is provided with the sound insulating material 3, so that the transmission of sound between the field edges 5 and 5 can be further suppressed.

連結具２は、図２に示すように、支持体１０を梁部８０に吊下げて固定するための吊下具である。連結具２は、図４に示すように、例えば鋼材等で形成された矩形状の板をＬ字形状に折り曲げて形成した部材である。連結具２は、板面が鉛直方向に沿うように配置される支持板部２１と、支持板部２１の板面と交差する方向（本実施形態では水平方向）に沿うように板面が配置される固定板部２２とを有する。 As shown in FIG. 2, the connecting tool 2 is a hanging tool for suspending and fixing the support 10 to the beam portion 80. As shown in FIG. 4, the connector 2 is a member formed by bending a rectangular plate made of, for example, a steel material into an L shape. In the connector 2, the plate surface is arranged so that the support plate portion 21 in which the plate surface is arranged along the vertical direction and the plate surface intersect the plate surface of the support plate portion 21 (horizontal direction in the present embodiment). It has a fixing plate portion 22 to be formed.

図２に示すように、固定板部２２には、厚み方向に貫通する貫通孔２２ａが形成されている。連結具２は、固定板部２２と梁部８０の下フランジ（図２参照）とを、貫通孔２２ａに挿通されるボルトなどの締結部材を用いて締結して固定することで、梁部８０に支持される。なお、連結具２の固定はボルト固定に限られず、溶接やクランプ、嵌め込みなどによる固定でもよい。 As shown in FIG. 2, the fixing plate portion 22 is formed with a through hole 22a penetrating in the thickness direction. The connecting tool 2 is fixed by fastening and fixing the fixing plate portion 22 and the lower flange of the beam portion 80 (see FIG. 2) using a fastening member such as a bolt inserted into the through hole 22a. Supported by. The fixture 2 is not limited to bolt fixing, but may be fixed by welding, clamping, fitting, or the like.

支持板部２１には、厚み方向に貫通する貫通孔２１ａが形成されている。連結具２は、貫通孔２１ａに挿通される固定ボルト２９及び当該固定ボルト２９と螺合接続されるナット３０で支持体１０と接続されることにより、支持体１０を吊り下げ固定する。貫通孔２１ａなどによる支持体１０の吊下げ固定については後述する。 The support plate portion 21 is formed with a through hole 21a penetrating in the thickness direction. The connector 2 suspends and fixes the support 10 by being connected to the support 10 by a fixing bolt 29 inserted into the through hole 21a and a nut 30 screwed to the fixing bolt 29. The suspension and fixing of the support 10 by the through hole 21a or the like will be described later.

図１、図２及び図４に示すように、支持体１０は、複数（二つ以上）の野縁５の端部を支持する、いわゆる野縁受部材である。支持体１０は、長手方向が野縁５の長手方向と交差する方向、且つ、水平方向に沿う方向に延在するように配置されている。本実施形態では、支持体１０の長手方向は野縁５の長手方向に直交しており、梁部８０（図１参照）と平行である。支持体１０は、図２、図４に示すように、対になる野縁５，５の一方を支持する第一支持体１１と、対になる野縁５，５の他方を支持する第二支持体１２とを有する。 As shown in FIGS. 1, 2 and 4, the support 10 is a so-called field edge receiving member that supports the ends of a plurality (two or more) field edges 5. The support 10 is arranged so as to extend in a direction in which the longitudinal direction intersects the longitudinal direction of the field edge 5 and in a direction along the horizontal direction. In the present embodiment, the longitudinal direction of the support 10 is orthogonal to the longitudinal direction of the field edge 5 and is parallel to the beam portion 80 (see FIG. 1). As shown in FIGS. 2 and 4, the support 10 has a first support 11 that supports one of the paired field edges 5 and 5, and a second support that supports the other of the paired field edges 5 and 5. It has a support 12.

図２、図４に示すように、第一支持体１１及び第二支持体１２は、それぞれ長軸状の部材である。第一支持体１１及び第二支持体１２は、その長手方向に対する垂直断面の断面形状が角張ったＵ字状形状（カタカナのコの字型状形状）の溝形鋼により構成されている。第一支持体１１及び第二支持体１２それぞれにおけるＵ字状形状の谷底板部には、厚み方向に貫通する貫通孔１１ａ，１２ａ（図２参照）が形成されている。 As shown in FIGS. 2 and 4, the first support 11 and the second support 12 are long-axis members, respectively. The first support 11 and the second support 12 are made of channel steel having a U-shape (a U-shape of katakana) having an angular cross-sectional shape in a cross section perpendicular to the longitudinal direction thereof. Through holes 11a and 12a (see FIG. 2) penetrating in the thickness direction are formed in the U-shaped valley bottom plate portion of each of the first support 11 and the second support 12.

第一支持体１１及び第二支持体１２は、それらの谷底板部の外側の面（以下、「谷底外面」と記載する。）同士を対向させて配置されている。本実施形態では、第一支持体１１及び第二支持体１２はこれらの谷底外面に平行な面に対して対称（面対称）の形状である。 The first support 11 and the second support 12 are arranged so that the outer surfaces of their valley bottom plate portions (hereinafter, referred to as “valley bottom outer surface”) face each other. In the present embodiment, the first support 11 and the second support 12 have a shape symmetrical (plane symmetric) with respect to a plane parallel to the outer surface of the valley bottom.

図２に示すように、第一支持体１１及び第二支持体１２は、それぞれの谷底板部の内側の面（以下、「谷底内面」と記載する。）に野縁５，５の小口面５１，５１が対向する状態、且つ、小口面５１，５１同士が対向する状態になるように、溝空間に、野縁５，５において対向させる小口面５１，５１側の端部を嵌め込んで、対向させた小口面５１，５１側の端部で野縁５，５を支持している。本実施形態では、第一支持体１１及び第二支持体１２の谷底外面及び谷底内面と小口面５１，５１とは平行であるが、平行である場合に限られない。 As shown in FIG. 2, the first support 11 and the second support 12 have edge surfaces 5 and 5 on the inner surface of each valley bottom plate portion (hereinafter, referred to as “valley bottom inner surface”). The ends of the edge surfaces 51 and 51 facing each other at the field edges 5 and 5 are fitted into the groove space so that the edges 51 and 51 face each other and the edge surfaces 51 and 51 face each other. , The field edges 5 and 5 are supported by the end portions on the side of the edge faces 51 and 51 that face each other. In the present embodiment, the valley bottom outer surface and valley bottom inner surface of the first support 11 and the second support 12 are parallel to the fore-edge surfaces 51 and 51, but the case is not limited to the case where they are parallel.

野縁５，５の端部が第一支持体１１及び第二支持体１２に嵌め込まれた状態では、小口面５１，５１同士の間（野縁５，５の離間部分）に第一支持体１１及び第二支持体１２における谷底板部が配置される。 In a state where the ends of the field edges 5 and 5 are fitted into the first support 11 and the second support 12, the first support is between the edge surfaces 51 and 51 (separated portions of the field edges 5 and 5). The valley bottom plate portion in the 11 and the second support 12 is arranged.

本実施形態では、第一支持体１１及び第二支持体１２の谷底板部と小口面５１，５１とは離間している。これにより、野縁５，５と第一支持体１１や第二支持体１２との間の音の伝達が抑制される。その結果、野縁５，５間の音の伝達が抑制されて、野縁５を介した天井における音の伝達が抑制される。実施形態では、第一支持体１１及び第二支持体１２の谷底板部と小口面５１，５１との間に遮音材を配置していないが、第一支持体１１及び第二支持体１２の谷底板部と小口面５１，５１との間に遮音材を配置してもよい。 In the present embodiment, the valley bottom plate portion of the first support 11 and the second support 12 and the edge surfaces 51 and 51 are separated from each other. As a result, sound transmission between the field edges 5 and 5 and the first support 11 and the second support 12 is suppressed. As a result, the sound transmission between the field edges 5 and 5 is suppressed, and the sound transmission on the ceiling through the field edges 5 is suppressed. In the embodiment, the sound insulating material is not arranged between the valley bottom plate portion of the first support 11 and the second support 12 and the fore-edge surfaces 51 and 51, but the first support 11 and the second support 12 have no sound insulating material. A sound insulating material may be arranged between the valley bottom plate portion and the edge surfaces 51, 51.

貫通孔１１ａ，１２ａには連結具２の固定ボルト２９が挿通される。これにより、第一支持体１１と第二支持体１２とが接続されて支持体１０として一体化すると共に、支持体１０が梁部８０に吊下げられる。詳細は後述する。 The fixing bolt 29 of the connecting tool 2 is inserted into the through holes 11a and 12a. As a result, the first support 11 and the second support 12 are connected and integrated as the support 10, and the support 10 is suspended from the beam portion 80. Details will be described later.

図３、図４に示すように、支持体１０は、支持体１０の長手方向におけるそれぞれ異なる位置で、一つ以上の対の野縁５，５を支持可能である。図３では、支持体１０が、支持体１０の長手方向において等間隔に配置された複数の対の野縁５，５を支持する場合を示している。 As shown in FIGS. 3 and 4, the support 10 can support one or more pairs of field edges 5, 5 at different positions in the longitudinal direction of the support 10. FIG. 3 shows a case where the support 10 supports a plurality of pairs of field edges 5 and 5 arranged at equal intervals in the longitudinal direction of the support 10.

図２に示すように、第一支持体１１と第二支持体１２との間には連結具２の支持板部２１が配置される。第一支持体１１及び第二支持体１２の谷底板部は、連結具２の支持板部２１に対して、固定ボルト２９及びナット３０により固定される。これにより、第一支持体１１及び第二支持体１２は、支持体１０として一体化され、この支持体１０は、連結具２により、梁部８０から吊り下げられる。支持体１０は、一つ以上の連結具２を介して梁部８０に吊下げ固定される。本実施形態の支持体１０は、支持体１０の長手方向において等間隔に配置された複数の連結具２によって吊下げ固定されるが、各支持体１０が吊り下げ固定される連結具２の数は特に限定されない。 As shown in FIG. 2, a support plate portion 21 of the connector 2 is arranged between the first support 11 and the second support 12. The valley bottom plate portions of the first support 11 and the second support 12 are fixed to the support plate portion 21 of the connector 2 by fixing bolts 29 and nuts 30. As a result, the first support 11 and the second support 12 are integrated as the support 10, and the support 10 is suspended from the beam portion 80 by the connecting tool 2. The support 10 is suspended and fixed to the beam portion 80 via one or more connecting tools 2. The support 10 of the present embodiment is suspended and fixed by a plurality of connecting tools 2 arranged at equal intervals in the longitudinal direction of the support 10, but the number of connecting tools 2 to which each support 10 is suspended and fixed. Is not particularly limited.

遮音材３は、いわゆる吸音材、制震材ないしは防振材などの、人にとって可聴な音の周波数に対応する振動を減衰させる部材である。遮音材３は、柔らかいゴム状の弾性体や硬いスポンジ状の樹脂の発泡体などの、弾性力を有し、振動エネルギーを吸収して熱に変換可能な材料で形成可能である。遮音材３を形成する材料もしくは材質の具体例としては、弾性樹脂シート、ブチル系ゴムシート、オレフィン系ゴムシート、不織布シート及び発泡系樹脂シートが挙げられる。遮音材３は、例えば平板状に形成されている。遮音材３は、本実施形態では硬いスポンジ状のゴム材の板である。 The sound insulating material 3 is a member such as a so-called sound absorbing material, a vibration damping material, or a vibration damping material, which attenuates vibration corresponding to a frequency of sound audible to humans. The sound insulating material 3 can be formed of a material having elastic force, such as a soft rubber-like elastic body or a hard sponge-like resin foam, which can absorb vibration energy and convert it into heat. Specific examples of the material or material forming the sound insulating material 3 include an elastic resin sheet, a butyl rubber sheet, an olefin rubber sheet, a non-woven fabric sheet, and a foamed resin sheet. The sound insulating material 3 is formed in a flat plate shape, for example. The sound insulating material 3 is a hard sponge-like rubber plate in the present embodiment.

遮音材３にはその厚み方向に貫通する貫通孔３ａが形成されている。遮音材３は、貫通孔３ａに固定ボルト２９が挿通されることで、支持体１０に固定される。 The sound insulating material 3 is formed with a through hole 3a penetrating in the thickness direction thereof. The sound insulating material 3 is fixed to the support 10 by inserting the fixing bolt 29 into the through hole 3a.

遮音材３は、第一支持体１１と第二支持体１２との間に配置される。より具体的に、本実施形態の遮音材３は、第一支持体１１及び第二支持体１２の谷底板部の谷底外面間に挟み込まれている。このように遮音材３が第一支持体１１と第二支持体１２との間に配置されることで、第一支持体１１と第二支持体１２との間の音の伝達が抑制される。これにより、野縁５，５間の音の伝達が抑制されて、野縁５を介した天井における音の伝達が抑制される。 The sound insulating material 3 is arranged between the first support 11 and the second support 12. More specifically, the sound insulating material 3 of the present embodiment is sandwiched between the valley bottom outer surfaces of the valley bottom plate portions of the first support 11 and the second support 12. By arranging the sound insulating material 3 between the first support 11 and the second support 12 in this way, the sound transmission between the first support 11 and the second support 12 is suppressed. .. As a result, the sound transmission between the field edges 5 and 5 is suppressed, and the sound transmission on the ceiling through the field edges 5 is suppressed.

遮音材３は、その一部もしくは全部が、対となる野縁５，５の小口面５１，５１同士の間に配置されるとよい。このように遮音材３を配置することで、対になる野縁５，５の一方の野縁５から第一支持体１１や第二支持体１２を介した他方の野縁５への音の伝達（野縁５，５間の音の伝達）を効果的に抑制できる。これにより、野縁５を介した天井における音の伝達が効果的に抑制される。本実施形態では、図２に示すように、遮音材３の全部が対となる野縁５，５の小口面５１，５１同士の間に配置されている。すなわち、対になる野縁５，５の長手方向に沿う方向視で見た場合に、野縁５，５の小口面５１，５１及び遮音材３の板面が重複するように（すなわち、野縁５，５の離間部分に）配置される。 It is preferable that a part or all of the sound insulating material 3 is arranged between the edge surfaces 51, 51 of the paired field edges 5, 5. By arranging the sound insulating material 3 in this way, the sound from one of the paired field edges 5 and 5 to the other field edge 5 via the first support 11 and the second support 12 can be heard. Transmission (transmission of sound between fields 5 and 5) can be effectively suppressed. As a result, the transmission of sound on the ceiling via the field edge 5 is effectively suppressed. In the present embodiment, as shown in FIG. 2, all of the sound insulating materials 3 are arranged between the fore-edge surfaces 51, 51 of the paired field edges 5, 5. That is, when viewed in a directional view along the longitudinal direction of the paired field edges 5, 5, the edge surfaces 51, 51 of the field edges 5, 5 and the plate surface of the sound insulating material 3 overlap (that is, the field). It is arranged (at the separated portion of the edges 5 and 5).

本実施形態では、図２に示すように、２枚の遮音材３，３が、第一支持体１１と連結具２の支持板部２１との間と、支持板部２１と第二支持体１２との間と、に挟み込まれている。すなわち、野縁５の長手方向に沿って第一支持体１１、遮音材３、支持板部２１、遮音材３及び第二支持体１２がこの順で配置されている。このように遮音材３を複数枚（２枚以上）重複するように配置することで、野縁５，５間の音の伝達を更に効果的に抑制できる。これにより、野縁５を介した天井における音の伝達が更に効果的に抑制される。 In the present embodiment, as shown in FIG. 2, two sound insulating materials 3 and 3 are provided between the first support 11 and the support plate 21 of the connector 2, and the support plate 21 and the second support. It is sandwiched between and between 12. That is, the first support 11, the sound insulating material 3, the support plate portion 21, the sound insulating material 3 and the second support 12 are arranged in this order along the longitudinal direction of the field edge 5. By arranging a plurality of (two or more) sound insulating materials 3 so as to overlap each other in this way, it is possible to more effectively suppress the transmission of sound between the field edges 5 and 5. As a result, the transmission of sound on the ceiling via the field edge 5 is more effectively suppressed.

第一支持体１１、遮音材３、支持板部２１、遮音材３及び第二支持体１２のそれぞれの貫通孔１１ａ，３ａ，２２ａ，３ａ，１２ａには固定ボルト２９が挿通される。このように挿通された固定ボルト２９とナット３０とが螺合接続されることにより、第一支持体１１、遮音材３，３、第二支持体１２及び連結具２が、固定ボルト２９の頭部とナット３０とに挟み込まれて、下地受部材１として一体化される。 Fixing bolts 29 are inserted into the through holes 11a, 3a, 22a, 3a, 12a of the first support 11, the sound insulating material 3, the support plate portion 21, the sound insulating material 3, and the second support 12, respectively. By screwing and connecting the fixing bolt 29 and the nut 30 inserted in this way, the first support 11, the sound insulating materials 3, 3 and the second support 12 and the connecting tool 2 are connected to the head of the fixing bolt 29. It is sandwiched between the portion and the nut 30 and integrated as the base receiving member 1.

間仕切壁６は、図１に示すように、鉛直方向に沿う板面を有し、建物Ｂの内部の空間Ｓを水平方向において仕切る内壁である。建物Ｂでは、間仕切壁６として、異なる世帯の居住する住戸間を仕切る界壁６１（戸境壁）と、住戸間内において空間を仕切る住戸内仕切壁（以下、仕切壁６２と記載する）とが形成されている。間仕切壁６は、遮音性能を有する部材で構成されることが好ましい。 As shown in FIG. 1, the partition wall 6 has a plate surface along the vertical direction, and is an inner wall that partitions the space S inside the building B in the horizontal direction. In the building B, the partition wall 6 includes a boundary wall 61 (door boundary wall) that divides the dwelling units in which different households live, and a dwelling unit internal partition wall (hereinafter referred to as a partition wall 62) that divides the space between the dwelling units. Is formed. The partition wall 6 is preferably made of a member having sound insulation performance.

間仕切壁６は、例えば、間仕切壁６の上端部を固定する上部ランナー６０と、間仕切壁６の下端部を固定する下部ランナー６９とにより、天井側と床側とを固定されて設置される。 The partition wall 6 is installed with the ceiling side and the floor side fixed by, for example, an upper runner 60 that fixes the upper end portion of the partition wall 6 and a lower runner 69 that fixes the lower end portion of the partition wall 6.

図１に示すように、上部ランナー６０及び下部ランナー６９は、例えば鋼材などで形成された長軸状の部材であり、その長手方向に沿う断面の形状が角張ったＵ字形状（カタカナのコの字型状形状）の溝形鋼により構成されている。上部ランナー６０は、Ｕ字の谷底板部の内面を下方に向けた状態で、Ｕ字の谷底板部の外面を野縁５もしくは天井材８３に向けた状態で、谷底板部が野縁５もしくは天井材８３にボルトなどで固定される。上部ランナー６０のＵ字の溝空間には間仕切壁６の上端部（例えば、間仕切壁６を構成するスタッド（図示せず）の上端部）が嵌め込まれて保持される。下部ランナー６９は、Ｕ字の谷底板部の内面を上方に向けた状態で、Ｕ字の谷底板部の外面を床下地材７２に向けた状態で、谷底板部が床下地材７２にボルトなどで固定される。下部ランナー６９のＵ字の溝空間には間仕切壁６の下端部（例えば、間仕切壁６を構成するスタッドの下端部）が嵌め込まれて保持される。上部ランナー６０及び下部ランナー６９に対する間仕切壁６の固定は、ネジやボルトなどで行うことができる。上部ランナー６０及び下部ランナー６９の長手方向は、下地受部材１の支持体１０の長手方向に沿い配置されている。これにより、間仕切壁６は支持体１０の長手方向に沿い立設される。上部ランナー６０及び下部ランナー６９で固定された間仕切壁６の側面には石膏ボードなどが固定され、更に塗装や壁紙などの装飾が施される。 As shown in FIG. 1, the upper runner 60 and the lower runner 69 are long-axis members made of, for example, steel, and have a U-shape (katakana) with an angular cross-sectional shape along the longitudinal direction thereof. It is made of channel steel (shaped). In the upper runner 60, the valley bottom plate portion is the field edge 5 with the inner surface of the U-shaped valley bottom plate portion facing downward and the outer surface of the U-shaped valley bottom plate portion facing the field edge 5 or the ceiling material 83. Alternatively, it is fixed to the ceiling material 83 with bolts or the like. An upper end portion of the partition wall 6 (for example, an upper end portion of a stud (not shown) constituting the partition wall 6) is fitted and held in the U-shaped groove space of the upper runner 60. In the lower runner 69, the valley bottom plate portion is bolted to the floor base material 72 with the inner surface of the U-shaped valley bottom plate portion facing upward and the outer surface of the U-shaped valley bottom plate portion facing the floor base material 72. It is fixed by such as. The lower end portion of the partition wall 6 (for example, the lower end portion of the stud constituting the partition wall 6) is fitted and held in the U-shaped groove space of the lower runner 69. The partition wall 6 can be fixed to the upper runner 60 and the lower runner 69 with screws, bolts, or the like. The longitudinal direction of the upper runner 60 and the lower runner 69 is arranged along the longitudinal direction of the support 10 of the base receiving member 1. As a result, the partition wall 6 is erected along the longitudinal direction of the support 10. A gypsum board or the like is fixed to the side surface of the partition wall 6 fixed by the upper runner 60 and the lower runner 69, and further decoration such as painting or wallpaper is applied.

界壁６１を固定する上部ランナー６０は、野縁５の下面部に固定されている。すなわち、界壁６１は、その上端部が上部ランナー６０を介し、天井材８３を挟み込まない状態で野縁５に直接的に固定されている（いわゆる壁勝ち天井負けの納まり）。また、界壁６１を固定する下部ランナー６９は、鉛直方向に沿う方向視で見た場合に上部ランナー６０と重複する位置に配置され、且つ床下地材７２に固定されている。すなわち、界壁６１は、下部ランナー６９を介して、その下端部が床下地材７２に固定されている。これらにより、住戸間を仕切る界壁６１が強固に固定される。 The upper runner 60 for fixing the boundary wall 61 is fixed to the lower surface portion of the field edge 5. That is, the upper end of the boundary wall 61 is directly fixed to the field edge 5 without sandwiching the ceiling material 83 via the upper runner 60 (so-called wall-winning ceiling defeat). Further, the lower runner 69 for fixing the boundary wall 61 is arranged at a position overlapping with the upper runner 60 when viewed in a direction along the vertical direction, and is fixed to the floor base material 72. That is, the lower end of the boundary wall 61 is fixed to the floor base material 72 via the lower runner 69. As a result, the boundary wall 61 that partitions the dwelling units is firmly fixed.

仕切壁６２を固定する上部ランナー６０は、天井材８３の下面に当接した状態で野縁５の下面部に固定されている。すなわち、仕切壁６２は、その上端部が上部ランナー６０と天井材８３とを介して野縁５に固定されており、仕切壁６２の上端部と野縁５とは、上部ランナー６０と天井材８３とを挟み込んだ状態になっている（いわゆる壁負け天井勝ちの納まり）。また、仕切壁６２を固定する下部ランナー６９は、界壁６１の場合と同様に、鉛直方向に沿う方向視で見た場合に上部ランナー６０と重複する位置に配置され、且つ床下地材７２に固定されている。すなわち、仕切壁６２は、下部ランナー６９を介して、その下端部が床下地材７２に固定されている。これらにより、住戸間内での仕切壁６２の設置を簡易なものとすることができる。 The upper runner 60 for fixing the partition wall 62 is fixed to the lower surface portion of the field edge 5 in a state of being in contact with the lower surface of the ceiling material 83. That is, the upper end of the partition wall 62 is fixed to the field edge 5 via the upper runner 60 and the ceiling material 83, and the upper end of the partition wall 62 and the field edge 5 are the upper runner 60 and the ceiling material. It is in a state where it is sandwiched between 83 (so-called wall-losing ceiling win). Further, the lower runner 69 for fixing the partition wall 62 is arranged at a position overlapping with the upper runner 60 when viewed in the vertical direction as in the case of the boundary wall 61, and is placed on the floor base material 72. It is fixed. That is, the lower end of the partition wall 62 is fixed to the floor base material 72 via the lower runner 69. As a result, the installation of the partition wall 62 within the dwelling units can be simplified.

図１、図２及び図５に示すように、間仕切壁６（界壁６１及び仕切壁６２）は、野縁５の長手方向において最も近い距離にある支持体１０に沿い立設されている。これにより、間仕切壁６が遮音構造１００に近い位置に配置され、野縁５を介した音の伝達であって、間仕切壁６で隣り合う空間Ｓの音の伝達（以下では、間仕切壁６をまたぐ音の伝達と記載する）が抑制される。本実施形態では、間仕切壁６は更に、野縁５の長手方向において最も近い距離にある支持体１０が支持されている梁部８０（以下、近接梁部と記載する）に沿い立設されている。これにより、間仕切壁６が遮音構造１００（特に、野縁５，５の離間部分）にできるだけ近い位置に配置され、間仕切壁６をまたぐ音の伝達が抑制される。 As shown in FIGS. 1, 2 and 5, the partition wall 6 (boundary wall 61 and partition wall 62) is erected along the support 10 at the shortest distance in the longitudinal direction of the field edge 5. As a result, the partition wall 6 is arranged at a position close to the sound insulation structure 100, and the sound is transmitted through the field edge 5, and the sound of the spaces S adjacent to each other by the partition wall 6 is transmitted (hereinafter, the partition wall 6 is used. (Described as straddling sound transmission) is suppressed. In the present embodiment, the partition wall 6 is further erected along the beam portion 80 (hereinafter referred to as a proximity beam portion) in which the support 10 at the closest distance in the longitudinal direction of the field edge 5 is supported. There is. As a result, the partition wall 6 is arranged at a position as close as possible to the sound insulation structure 100 (particularly, the separated portions of the field edges 5 and 5), and the transmission of sound across the partition wall 6 is suppressed.

本実施形態では、図１、図２に示すように、鉛直方向に沿う方向視で見た場合に近接梁部と重複する位置に、界壁６１が配置されている。界壁６１は、鉛直方向に沿う方向視で見た場合に支持体１０と重複していない。これにより、界壁６１は、野縁５に上端部を固定された状態で自然と遮音構造１００に近い位置に配置されることになる。そのため、野縁５を介した音の伝達であって、界壁６１で隣り合う空間Ｓの音の伝達（以下では、界壁６１をまたぐ音の伝達と記載する）を適切に抑制することができる。 In the present embodiment, as shown in FIGS. 1 and 2, the boundary wall 61 is arranged at a position overlapping the adjacent beam portion when viewed in a direction along the vertical direction. The boundary wall 61 does not overlap with the support 10 when viewed in a vertical direction. As a result, the boundary wall 61 is naturally arranged at a position close to the sound insulation structure 100 with the upper end portion fixed to the field edge 5. Therefore, it is possible to appropriately suppress the sound transmission of the spaces S adjacent to each other at the boundary wall 61 (hereinafter, referred to as the sound transmission across the boundary wall 61), which is the sound transmission through the field edge 5. can.

本実施形態では、図１、図５に示すように、鉛直方向に沿う方向視で見た場合に支持体１０と重複する位置に、仕切壁６２が配置されている。これにより、仕切壁６２は、野縁５に上端部を固定された状態で自然と遮音構造１００（特に、野縁５，５の離間部分）に最も近い位置に配置されることになる。そのため、野縁５を介した音の伝達であって、仕切壁６２で隣り合う空間Ｓの音の伝達（以下では、仕切壁６２をまたぐ音の伝達と記載する）を最も効果的に抑制することができる。 In the present embodiment, as shown in FIGS. 1 and 5, the partition wall 62 is arranged at a position overlapping the support 10 when viewed in a vertical direction. As a result, the partition wall 62 is naturally arranged at the position closest to the sound insulation structure 100 (particularly, the separated portion of the field edges 5 and 5) with the upper end portion fixed to the field edge 5. Therefore, the sound transmission through the field edge 5 and the sound transmission of the spaces S adjacent to each other by the partition wall 62 (hereinafter, referred to as the sound transmission across the partition wall 62) is most effectively suppressed. be able to.

以上のようにして、建物内の遮音性の向上を実現する遮音構造及び遮音性が向上された建物を提供することができる。 As described above, it is possible to provide a sound insulation structure that realizes improvement in sound insulation in a building and a building with improved sound insulation.

〔別実施形態〕
（１）上記実施形態では、下地受部材１の連結具２は、板面が鉛直方向に沿い配置される支持板部２１と、支持板部２１の板面と交差する方向（水平方向）に沿い板面が配置される固定板部２２とを有し、連結具２は、固定板部２２を梁部８０に固定されて、梁部８０に支持されている場合を説明した。しかし、連結具２が梁部８０に支持される態様はこれに限られない。 [Another Embodiment]
(1) In the above embodiment, the connecting tool 2 of the base receiving member 1 has a support plate portion 21 whose plate surface is arranged along the vertical direction and a direction (horizontal direction) in which the plate surface intersects the plate surface of the support plate portion 21. The case where the fixture 2 has a fixing plate portion 22 on which the side plate surface is arranged, and the fixing plate portion 22 is fixed to the beam portion 80 and supported by the beam portion 80 has been described. However, the mode in which the connector 2 is supported by the beam portion 80 is not limited to this.

連結具２は間接的に梁部８０に支持されてもよい。例えば、下地受部材１は、梁部８０に直接的もしくは間接的に支持されており、連結具２の吊下げ高さを調節可能とする高さ調整部などの他の吊下げ具（例えば、スタッドボルト）や、梁部８０に直接的もしくは間接的に支持されており、連結具２の振動を抑制する制振装置（例えば、防振ゴム）を備えてもよい。連結具２が高さ調整部を介して梁部８０に間接的に支持される場合、連結具２は、その吊下げ高さを調整可能とされる。連結具２が制振装置を介して梁部８０に間接的に支持される場合、下地受部材１は、制振装置で音の振動を減衰させて野縁５，５間の音の伝達を更に抑制可能となる。 The connector 2 may be indirectly supported by the beam portion 80. For example, the base receiving member 1 is directly or indirectly supported by the beam portion 80, and another hanging tool such as a height adjusting portion that allows the hanging height of the connecting tool 2 to be adjusted (for example,). A vibration damping device (for example, vibration damping rubber) that is directly or indirectly supported by the stud bolt) or the beam portion 80 and suppresses the vibration of the connector 2 may be provided. When the connecting tool 2 is indirectly supported by the beam portion 80 via the height adjusting portion, the connecting tool 2 is made capable of adjusting its hanging height. When the connector 2 is indirectly supported by the beam portion 80 via the vibration damping device, the base receiving member 1 attenuates the vibration of the sound by the vibration damping device to transmit the sound between the field edges 5 and 5. It can be further suppressed.

（２）上記実施形態では、遮音材３は、少なくともその一部が、対となる野縁５，５の小口面５１，５１同士の間に配置される場合を説明した。しかし、遮音材３は必ずしも小口面５１，５１同士の間に配置しなくてもよい。遮音材３は、第一支持体１１と第二支持体１２との間に配置されていれば、野縁５，５間の音の伝達を抑制できる。 (2) In the above embodiment, the case where at least a part of the sound insulating material 3 is arranged between the fore-edge surfaces 51 and 51 of the paired field edges 5 and 5 has been described. However, the sound insulating material 3 does not necessarily have to be arranged between the edge surfaces 51 and 51. If the sound insulating material 3 is arranged between the first support 11 and the second support 12, the sound transmission between the field edges 5 and 5 can be suppressed.

（３）上記実施形態では、第一支持体１１及び第二支持体１２が、それぞれのＵ字状形状の対底内面に野縁５，５の小口面５１，５１が対向する状態で、Ｕ字の溝空間に野縁５，５の端部を嵌め込んで、野縁５，５をその端部で支持している場合を説明した。しかし、第一支持体１１及び第二支持体１２が野縁５，５の端部を支持する態様はこれに限られない。例えば、Ｕ字状形状の第一支持体１１及び第二支持体１２のそれぞれの鉛直方向下側に位置する側板部の下面に、野縁５，５の端部の小端を対向させた状態で、ボルトなどで当該側板部に野縁５，５の端部を固定して支持してもよい。この場合でも、小口面５１，５１を離間させていれば、野縁５，５間の音の振動の伝達は抑制できる。 (3) In the above embodiment, the first support 11 and the second support 12 are U-shaped with the edge surfaces 51 and 51 of the field edges 5 and 5 facing each other on the inner surface of the U-shaped anti-bottom. The case where the ends of the field edges 5 and 5 are fitted into the groove space of the character and the field edges 5 and 5 are supported by the ends has been described. However, the mode in which the first support 11 and the second support 12 support the ends of the field edges 5 and 5 is not limited to this. For example, a state in which the small ends of the ends of the field edges 5 and 5 face each other on the lower surface of the side plate portion located on the lower side in the vertical direction of each of the U-shaped first support 11 and the second support 12. Then, the ends of the field edges 5 and 5 may be fixed and supported on the side plate portion with a bolt or the like. Even in this case, if the fore-edge surfaces 51 and 51 are separated from each other, the transmission of sound vibration between the field edges 5 and 5 can be suppressed.

（４）上記実施形態では、第一支持体１１及び第二支持体１２は、その長手方向に対する垂直断面の断面形状が角張ったＵ字状形状（カタカナのコの字型状形状）に形成されており、第一支持体１１及び第二支持体１２が、それぞれのＵ字状形状の谷底内面に野縁５，５の小口面５１，５１が対向する状態で、Ｕ字の溝空間に野縁５，５の端部を嵌め込んで、野縁５，５をその端部で支持している場合を説明した。しかし、第一支持体１１及び第二支持体１２の長手方向に対する垂直断面の断面形状は、角張ったＵ字状形状に形成される場合に限られない。 (4) In the above embodiment, the first support 11 and the second support 12 are formed in a U-shape (a U-shape of Katakana) having an angular cross-sectional shape in a cross section perpendicular to the longitudinal direction thereof. The first support 11 and the second support 12 are placed in a U-shaped groove space in a state where the edge surfaces 51 and 51 of the field edges 5 and 5 face each other on the inner surface of the valley bottom having a U-shape. The case where the ends of the edges 5 and 5 are fitted and the field edges 5 and 5 are supported by the ends has been described. However, the cross-sectional shape of the first support 11 and the second support 12 in the vertical cross section with respect to the longitudinal direction is not limited to the case where the first support 11 and the second support 12 are formed in an angular U-shape.

第一支持体１１及び第二支持体１２は、例えば平板状に形成されてもよい。この場合は、第一支持体１１及び第二支持体１２の板面に野縁５，５の小口面５１，５１を当接させて、当該板面を貫通させてボルトやネジなどで第一支持体１１及び第二支持体１２と野縁５，５とを接続し、野縁５，５をその端部で支持してもよい。この場合でも、小口面５１，５１同士を離間させていれば、野縁５，５間の音の振動の伝達は抑制できる。 The first support 11 and the second support 12 may be formed in a flat plate shape, for example. In this case, the edge surfaces 51 and 51 of the field edges 5 and 5 are brought into contact with the plate surfaces of the first support 11 and the second support 12, and the plate surfaces are penetrated and the first is made with bolts or screws. The support 11 and the second support 12 may be connected to the field edges 5 and 5, and the field edges 5 and 5 may be supported by their ends. Even in this case, if the fore-edge surfaces 51 and 51 are separated from each other, the transmission of sound vibration between the field edges 5 and 5 can be suppressed.

（５）上記実施形態では、鉛直方向に沿う方向視で見た場合に近接梁部と重複する位置に、界壁６１が配置されている場合を説明したが、界壁６１は、必ずしも近接梁部と重複する位置に配置さていなくてもよい。界壁６１が遮音構造１００に近い位置に配置されていれば、界壁６１をまたぐ音の伝達が適切に抑制される。 (5) In the above embodiment, the case where the boundary wall 61 is arranged at a position overlapping the proximity beam portion when viewed in the vertical direction is described, but the boundary wall 61 is not necessarily a proximity beam. It does not have to be placed at a position overlapping the part. If the boundary wall 61 is arranged at a position close to the sound insulation structure 100, the transmission of sound across the boundary wall 61 is appropriately suppressed.

（６）上記実施形態では、下地受部材１において、２枚の遮音材３，３が、第一支持体１１と連結具２の支持板部２１との間と、支持板部２１と第二支持体１２との間と、に挟み込まれている場合を説明した。しかし、下地受部材１においては２枚の遮音材３，３が用いられる場合に限られない。下地受部材１は、少なくとも１枚の遮音材３を第一支持体１１と第二支持体１２との間に配置されていれば、野縁５，５間の音の伝達を遮音材３で抑制できる。 (6) In the above embodiment, in the base receiving member 1, two sound insulating materials 3 and 3 are provided between the first support 11 and the support plate portion 21 of the connector 2, and the support plate portion 21 and the second. The case where it is sandwiched between the support body 12 and the support body 12 has been described. However, the base receiving member 1 is not limited to the case where two sound insulating materials 3 and 3 are used. If at least one sound insulating material 3 is arranged between the first support 11 and the second support 12, the base receiving member 1 transmits sound between the field edges 5 and 5 by the sound insulating material 3. Can be suppressed.

（７）上記実施形態では、第一支持体１１及び第二支持体１２の谷底内面と、対となる野縁５，５の小口面５１，５１とは離間している場合を説明したがこれに限られない。第一支持体１１及び第二支持体１２の谷底内面と、対となる野縁５，５の小口面５１，５１とが当接している場合でも、対となる野縁５，５の小口面５１，５１同士を離間させていれば、野縁５，５間の音の振動の伝達は抑制できる。また、遮音材３が第一支持体１１と第二支持体１２との間に配置されていれば、野縁５，５間の音の伝達を遮音材３で抑制できる。 (7) In the above embodiment, the case where the inner surface of the valley bottom of the first support 11 and the second support 12 and the fore-edge surfaces 51 and 51 of the paired field edges 5 and 5 are separated from each other has been described. Not limited to. Even when the inner surface of the valley bottom of the first support 11 and the second support 12 and the edge surfaces 51 and 51 of the paired field edges 5 and 5 are in contact with each other, the edge surfaces of the paired field edges 5 and 5 are in contact with each other. If the 51 and 51 are separated from each other, the transmission of sound vibration between the field edges 5 and 5 can be suppressed. Further, if the sound insulating material 3 is arranged between the first support 11 and the second support 12, the sound transmission between the field edges 5 and 5 can be suppressed by the sound insulating material 3.

（８）上記実施形態では、鉛直方向に沿う方向視で見た場合に支持体１０と重複する位置に、仕切壁６２が配置されている場合を説明したが、仕切壁６２は、必ずしも支持体１０と重複する位置に配置さていなくてもよい。仕切壁６２が遮音構造１００に近い位置に配置されていれば、仕切壁６２をまたぐ音の伝達が抑制される。 (8) In the above embodiment, the case where the partition wall 62 is arranged at a position overlapping with the support 10 when viewed in a vertical direction is described, but the partition wall 62 is not necessarily a support. It does not have to be arranged at a position overlapping with 10. If the partition wall 62 is arranged at a position close to the sound insulation structure 100, the transmission of sound across the partition wall 62 is suppressed.

（９）上記実施形態では、界壁６１を固定する上部ランナー６０は、天井材８３を介さずに直接的に、野縁５の下面部に固定されている場合を説明した。しかし、界壁６１を固定する上部ランナー６０を、天井材８３の下面に当接した状態で、天井材８３を介して間接的に野縁５の下面部に固定してもよい。この場合、仕切壁６２よりも天井材８３の敷設を先に施工することが可能となり、天井材８３の加工手間を削減できるため好ましい。なお、この場合は更に、仕切壁６２の上部近傍の天井材８３に、上部ランナー６０の長手方向に沿う隙間を形成してもよい。当該隙間により、天井材８３の音の振動の伝達を抑制できるため、天井材８３を介した仕切壁６２をまたぐ音の伝達を更に抑制することができる。 (9) In the above embodiment, the case where the upper runner 60 for fixing the boundary wall 61 is directly fixed to the lower surface portion of the field edge 5 without passing through the ceiling material 83 has been described. However, the upper runner 60 for fixing the boundary wall 61 may be indirectly fixed to the lower surface portion of the field edge 5 via the ceiling material 83 in a state of being in contact with the lower surface of the ceiling material 83. In this case, the ceiling material 83 can be laid before the partition wall 62, which is preferable because the processing time and effort of the ceiling material 83 can be reduced. In this case, a gap may be further formed in the ceiling material 83 near the upper portion of the partition wall 62 along the longitudinal direction of the upper runner 60. Since the transmission of the sound vibration of the ceiling material 83 can be suppressed by the gap, the transmission of the sound across the partition wall 62 via the ceiling material 83 can be further suppressed.

（１０）上記実施形態では、仕切壁６２を固定する上部ランナー６０は、天井材８３の下面に当接した状態で、天井材８３を介して間接的に、野縁５の下面部に固定されている場合を説明した。しかし、仕切壁６２を固定する上部ランナー６０を、天井材８３を挟み込まない状態で直接的に野縁５に固定してもよい。これにより、界壁６１をまたいで隣接する天井材８３,８３が上部ランナー６０で離間（分断）されるため、天井材８３を介した界壁６１をまたぐ音の伝達を更に抑制することができる。 (10) In the above embodiment, the upper runner 60 for fixing the partition wall 62 is indirectly fixed to the lower surface portion of the field edge 5 via the ceiling material 83 in a state of being in contact with the lower surface of the ceiling material 83. I explained the case. However, the upper runner 60 for fixing the partition wall 62 may be directly fixed to the field edge 5 without sandwiching the ceiling material 83. As a result, the adjacent ceiling materials 83 and 83 straddling the boundary wall 61 are separated (divided) by the upper runner 60, so that the transmission of sound across the boundary wall 61 through the ceiling material 83 can be further suppressed. ..

（１１）上記実施形態では、建物Ｂが遮音構造１００を採用しており、遮音構造１００が対になる野縁５，５と、下地受部材１とを含み、間仕切壁６が下地受部材１の支持体１０に沿い立設されている場合を説明した。そして、下地受部材１が、支持体１０として、対になる野縁５，５の一方を支持する第一支持体１１と、対になる野縁５，５の他方を支持する第二支持体１２とを有し、野縁５，５の小口面５１，５１同士が離間しており、第一支持体１１と第二支持体１２との間に遮音材３が配置されている場合を説明した。しかし、建物Ｂはこのような遮音構造１００を含む場合に限られない。建物Ｂは、必ずしも遮音材３や第一支持体１１及び第二支持体１２を要しない。建物Ｂは支持体１０が小口面５１，５１同士を離間した状態で野縁５，５の端部を支持しており、間仕切壁６が支持体１０の長手方向に沿い立設されていれば、野縁５，５の離間部分の存在により、間仕切壁６をまたぐ音の伝達が抑制されて、遮音性が向上される。 (11) In the above embodiment, the building B adopts the sound insulation structure 100, includes the field edges 5 and 5 to which the sound insulation structure 100 is paired, and the base receiving member 1, and the partition wall 6 is the base receiving member 1. The case where the building is erected along the support body 10 of the above has been described. Then, the base receiving member 1 supports the first support 11 that supports one of the paired field edges 5 and 5 and the second support that supports the other of the paired field edges 5 and 5 as the support 10. Explain the case where the front edges 51 and 51 of the field edges 5 and 5 are separated from each other and the sound insulating material 3 is arranged between the first support 11 and the second support 12. did. However, the building B is not limited to the case where the sound insulation structure 100 is included. Building B does not necessarily require the sound insulating material 3, the first support 11 and the second support 12. In the building B, if the support 10 supports the ends of the field edges 5 and 5 with the edge surfaces 51 and 51 separated from each other, and the partition wall 6 is erected along the longitudinal direction of the support 10. , The presence of the separated portions of the field edges 5 and 5 suppresses the transmission of sound across the partition wall 6 and improves the sound insulation.

なお、上記実施形態（別実施形態を含む、以下同じ）で開示される構成は、矛盾が生じない限り、他の実施形態で開示される構成と組み合わせて適用することが可能であり、また、本明細書において開示された実施形態は例示であって、本発明の実施形態はこれに限定されず、本発明の目的を逸脱しない範囲内で適宜改変することが可能である。 The configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in other embodiments as long as there is no contradiction. The embodiments disclosed in the present specification are examples, and the embodiments of the present invention are not limited thereto, and can be appropriately modified without departing from the object of the present invention.

本発明は、遮音構造及び建物に適用できる。 The present invention can be applied to sound insulation structures and buildings.

１：下地受部材
２：連結具（連結部）
３：遮音材
３ａ：貫通孔
４：固定具
５：野縁（天井下地部材）
６：間仕切壁
１０：支持体
１１：第一支持体
１１ａ：貫通孔
１２：第二支持体
１２ａ：貫通孔
２１：支持板部
２１ａ：貫通孔
２２：固定板部
２２ａ：貫通孔
２９：固定ボルト
３０：ナット
４０：本体部分
４１：凹部
４２：スタッドボルト
４２ａ：ナット
５１：小口面
６０：上部ランナー
６１：界壁
６２：仕切壁（住戸内仕切壁）
６９：下部ランナー
７１：床スラブ
７２：床下地材
７３：床材
８０：梁部
８１：天井スラブ
８３：天井材
８４：吸音材
１００：遮音構造
Ｂ：建物
Ｓ：空間
1: Base receiving member 2: Connecting tool (connecting part)
3: Sound insulation material 3a: Through hole 4: Fixture 5: Field edge (ceiling base member)
6: Partition wall 10: Support 11: First support 11a: Through hole 12: Second support 12a: Through hole 21: Support plate portion 21a: Through hole 22: Fixing plate portion 22a: Through hole 29: Fixing bolt 30: Nut 40: Main body 41: Recessed 42: Stud bolt 42a: Nut 51: Forehead surface 60: Upper runner 61: Boundary wall 62: Partition wall (partition wall inside the dwelling unit)
69: Lower runner 71: Floor slab 72: Floor base material 73: Floor material 80: Beam 81: Ceiling slab 83: Ceiling material 84: Sound absorbing material 100: Sound insulation structure B: Building S: Space

Claims

Two long-axis ceiling base members arranged so that the fore-edge surfaces face each other,
A base receiving member that supports the two ceiling base members in a state where the edge surfaces are separated from each other is provided.
The base receiving member is
A first support that supports an end portion of the ceiling base member in the longitudinal direction,
A second support that supports the end of the other ceiling base member in the longitudinal direction, and
A sound insulating structure having a sound insulating material arranged between the first support and the second support.

The sound insulation structure according to claim 1, wherein the first support and the second support are arranged between the edge surfaces.

The base receiving member has a connecting portion for connecting the first support and the second support.
The connecting part is
Suspended and fixed behind the ceiling,
The sound insulation structure according to claim 1 or 2, which is arranged between the first support and the second support.

Two long-axis ceiling base members arranged so that the fore-edge surfaces face each other,
A long-axis support that extends in a direction intersecting the longitudinal direction of the ceiling substrate member and supports the ends of the two ceiling substrate members in the longitudinal direction in a state where the edge surfaces are separated from each other.
A building with a partition wall erected along the longitudinal direction of the support.

The building according to claim 4, wherein the partition wall is a boundary wall whose upper end is fixed to the ceiling base member.

Further provided with a ceiling material supported by the ceiling base member,
The building according to claim 4 or 5, wherein the partition wall is a partition wall in a dwelling unit whose upper end is fixed to the ceiling base member via the ceiling material.