JPH0426632Y2 - - Google Patents
Info
- Publication number
- JPH0426632Y2 JPH0426632Y2 JP1985129172U JP12917285U JPH0426632Y2 JP H0426632 Y2 JPH0426632 Y2 JP H0426632Y2 JP 1985129172 U JP1985129172 U JP 1985129172U JP 12917285 U JP12917285 U JP 12917285U JP H0426632 Y2 JPH0426632 Y2 JP H0426632Y2
- Authority
- JP
- Japan
- Prior art keywords
- gap
- sound
- frame
- fittings
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Building Environments (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、閉塞状態にある防音戸と建具枠との
間の隙間を遮断する気密材を設けてある防音ドア
等の防音建具に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to soundproof fittings such as a soundproof door, which is provided with an airtight material that blocks the gap between the soundproof door and the fitting frame in a closed state.
従来のこの種の防音建具においては、防音戸と
建具枠との間の隙間に対する遮音を気密材に頼つ
ていた。
Conventional soundproof fittings of this type rely on airtight materials to insulate the gap between the soundproof door and the fitting frame.
しかしながら、前記従来の防音建具によるとき
は、気密材を内外方向に複数個設けてあつて、経
年に伴う気密材の劣化、変化、老化による気密材
と防音戸、あるいは、気密材と建具枠との不可避
的な気密不良のため、その気密材と防音戸、建具
枠との間から音が漏れ、しかも、防音戸と建具枠
との間での反射の繰返しにより音が拡大して気密
材を透過し、その結果、隙間の遮音性能が低いも
のであつた。
However, when using the above-mentioned conventional soundproofing fittings, multiple airtight materials are provided in the inside and outside directions, and due to deterioration, change, and aging of the airtight materials over time, the airtight materials and the soundproof door, or the airtight materials and the fittings frame are separated. Due to the unavoidable poor airtightness of the airtight material, sound leaks from between the airtight material and the soundproof door and fittings frame, and furthermore, due to repeated reflections between the soundproofing door and the fittings frame, the sound expands and can cause damage to the airtight material. As a result, the sound insulation performance of the gap was low.
本考案の目的は、防音戸と建具枠との間の隙間
の遮音性能を向上する点にある。 The purpose of the present invention is to improve the sound insulation performance of the gap between the soundproof door and the fitting frame.
上記目的を達成するための冒記の構成の防音建
具における本考案の特徴構成は、防音戸と建具枠
との間の隙間を、防音戸の内外方向の中間部に配
置した、前記防音戸と建具枠との間の隙間を遮断
するする気密材を基準として、前記内外方向の前
後に第１隙間部と第２隙間部に形成し、前記建具
枠を中空状に構成するとともに、前記建具枠の板
部の夫々に複数の音波透過孔を形成し、かつ、前
記建具枠内に吸音材を充填し、記第１隙間部の幅
よりも前記第２隙間部の幅を大に設定してある点
にある。
The characteristic structure of the present invention in the soundproofing fittings having the above-mentioned structure for achieving the above object is that the gap between the soundproofing door and the fittings frame is arranged in the middle part of the soundproofing door in the inside and outside direction. A first gap portion and a second gap portion are formed in the front and rear directions in the inside and outside directions based on an airtight material that blocks a gap between the fitting frame and the fitting frame, and the fitting frame is configured to have a hollow shape. A plurality of sound wave transmission holes are formed in each of the plate parts, and a sound absorbing material is filled in the fitting frame, and the width of the second gap part is set larger than the width of the first gap part. At a certain point.
隙間に入つた音の一部が音波透過孔から建具枠
内に入つて吸音材により吸収されるから、隙間に
入つた音を減衰でき、これによつて、気密材によ
る気密不良があつても、その気密不良に起因して
漏れる音の音圧レベルを非常に小さくできるとと
もに、音の気密材透過を抑制することができる。
そして、特に前記隙間を、それを遮断する気密材
を基準として前記内外方向の前後に第１隙間部と
第２隙間部に形成し、前記第１隙間部の幅よりも
前記第２隙間部の幅を大に設定してあることで、
幅の小さい前記第１隙間部により、低周波数域の
音を吸収しやすくできながら幅の大きい前記第２
隙間部により、前記第１隙間部が吸収する低周波
数域とは別に高周波数域の音を吸収しやすくで
き、これによつて隙間を通過しようとする音が高
周波数域のものであろうと低周波数域のものであ
ろうと、また高低が並存した周波数域のものであ
ろうと吸収して、それらに対応してその音の音圧
レベルを非常に小さくできる。
A part of the sound that enters the gap enters the fitting frame through the sound wave transmission hole and is absorbed by the sound absorbing material, so the sound that enters the gap can be attenuated. The sound pressure level of sound leaking due to poor airtightness can be extremely reduced, and the transmission of sound through the airtight material can be suppressed.
In particular, the gap is formed in a first gap part and a second gap part in the front and back in the inner and outer directions with reference to the airtight material that blocks the gap, and the width of the second gap part is wider than the width of the first gap part. By setting the width to large,
The first gap, which has a small width, can easily absorb sound in the low frequency range, while the second gap, which has a large width,
The gap makes it easier to absorb sounds in the high frequency range, in addition to the low frequency range that the first gap absorbs, so that even if the sound trying to pass through the gap is in the high frequency range, it will be low frequency. It absorbs sounds in a frequency range or in a frequency range where both high and low frequencies coexist, and can correspondingly reduce the sound pressure level of the sound.
したがつて、本考案によれば、隙間での音の透
過損失を広い周波数域にわたつて大きくして隙間
の遮音性能を向上し、もつて、全体として、音性
能を向上できるに至つた。
Therefore, according to the present invention, the sound transmission loss in the gap is increased over a wide frequency range, the sound insulation performance of the gap is improved, and the overall sound performance can be improved.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図ないし第３図に示すように、開口周縁に
ドア枠１（建具枠の一例）を取付けるとともに、
このドア枠１に揺動開閉式の防音ドア板２（防音
戸の一例）を取付け、かつ、閉塞状態にある防音
ドア板２とドア枠１との間の隙間３を内外方向で
遮断するゴム製の２つの気密材４，４′を内外方
向に適宜間隔を隔てる状態に設けて、防音建具の
一例である防音ドアが構成されている。 As shown in Figures 1 to 3, a door frame 1 (an example of a fittings frame) is attached to the periphery of the opening, and
A swingable soundproof door plate 2 (an example of a soundproof door) is attached to the door frame 1, and rubber is used to block the gap 3 between the closed soundproof door plate 2 and the door frame 1 from the inside and outside. A soundproof door, which is an example of soundproof fittings, is constructed by providing two airtight members 4 and 4' made of a metal oxide material with an appropriate distance between them in the interior and exterior directions.
前記ドア枠１は、中空状に構成されており、の
ドア枠１の前記隙間３に面する板部１ａは、内外
方向に適宜間隔を隔てて位置する段部１ｂ，１ｃ
を有する。かつ、この板部１ａの上側および左右
両側部分には、隙間３内の音をドア枠１内に透過
させる丸孔状の複数の音波透過孔５が形成されて
いるとともに、前記ドア枠１内には、音波透過孔
５からドア枠１内に透過した音を吸収するグラス
ウール製の吸音材６が充填されている。 The door frame 1 has a hollow shape, and the plate portion 1a facing the gap 3 of the door frame 1 has stepped portions 1b and 1c located at appropriate intervals in the inner and outer directions.
has. In addition, a plurality of round sound wave transmission holes 5 are formed on the upper side and both left and right sides of the plate portion 1a to transmit sound within the gap 3 into the door frame 1. is filled with a sound absorbing material 6 made of glass wool that absorbs sound transmitted from the sound wave transmission hole 5 into the door frame 1.
前記防音ドア板２は、横断面形状がほぼコの字
形のかまち２Ａと、これに厚さ方向に適宜間隔を
隔つた状態にガスケツト７を介して嵌込んだ２枚
のガラス板２ｂとからなり、前記かまち２Ａの隙
間３に面する板部２ａは、前記ドア枠１における
外方側の段部１ｂに内外方向で対向する段部２ｂ
を有する。 The soundproof door plate 2 is composed of a stile 2A having a substantially U-shaped cross section, and two glass plates 2b fitted into the stile 2A with a suitable distance in the thickness direction via a gasket 7. , the plate portion 2a facing the gap 3 of the stile 2A is a step portion 2b facing the outer step portion 1b of the door frame 1 in the inner and outer directions.
has.
前記かまち２Ａには、その内部をガラス板間空
間Ａと仕切る仕切板８がガラス板間空間Ａの全周
に至る状態に取付けられているとともに、ドア枠
１に付設した金具９に係合して防音ドア板２を閉
塞状態に保持する作用姿勢と係合を解除した非作
用姿勢とに揺動切替操作自在なロツクレバー１０
が取付けられている。また、前記仕切板８には、
ガラス板間空間Ａ内の音をかまち２Ａ内に透過さ
せる丸孔状の複数の音波透過孔１１が形成されて
いる。 A partition plate 8 that partitions the inside of the stile 2A from the space A between the glass plates is attached to the entire circumference of the space A between the glass plates, and also engages with a metal fitting 9 attached to the door frame 1. A lock lever 10 can be freely switched between an active position in which the soundproof door plate 2 is held in a closed state and a non-active position in which the engagement is released.
is installed. In addition, the partition plate 8 includes
A plurality of round sound wave transmission holes 11 are formed to transmit sound in the space A between the glass plates into the stile 2A.
かつ、前記かまち２Ａ内には、前記音波透過孔
１１からかまち２Ａ内に透過した音を吸収するグ
ラスウール製の吸音材１２が充填されているとと
もに、仕切板１１における下辺板部と吸音材１２
との間には、吸湿剤としての乾燥剤１３が充填さ
れている。つまり、この乾燥剤１３は、音波透過
孔１１を通してガラス板間空間Ａ内の湿分を吸収
することにより、ガラス板間空間Ａを乾燥状態に
維持するものである。かつ、かまち２Ａの内面に
は、かまち２Ａの振動を抑制する制振材１４が貼
着されている。 In addition, the stile 2A is filled with a sound absorbing material 12 made of glass wool that absorbs the sound transmitted from the sound wave transmission hole 11 into the stile 2A.
A desiccant 13 as a moisture absorbent is filled between the two. That is, this desiccant 13 maintains the space A between the glass plates in a dry state by absorbing moisture in the space A between the glass plates through the sound wave transmission holes 11. Moreover, a damping material 14 for suppressing vibration of the stile 2A is attached to the inner surface of the stile 2A.
前記気密材４，４′のうち、一方側のもの４は、
防音ドア板２が閉塞した状態においてドア枠１の
一方側の段部１ｂと防音ドア板２の段部２ｂとで
挟圧されて隙間３を遮断するものであつて、防音
ドア板２に取付けられている。従つて、隙間３
は、気密材４を基準として内外方向の前後に第１
隙間部３ａと第２隙間部３ｂに分割形成される。
他方、他方側の気密材４′は、防音ドア板２が閉
塞した状態においてドア枠１の他方側の段部１ｃ
と防音ドア板２におけるかまち２Ａの一方側に面
する外面とに挟圧されて隙間３の端部を遮断する
ものであつて、ドア枠１に取付けられている。そ
して、ドア枠１側の段部１ｂよりも防音ドア板２
側の段部２ｂの段差を大きくしてあり、従つて閉
塞状態で第１隙間部３ａの幅l1が第２隙間部３ｂ
の幅l2よりも小さくなるからにしてある。 Among the airtight materials 4, 4', the one 4 on one side is
When the soundproof door plate 2 is closed, it is pressed between the stepped portion 1b on one side of the door frame 1 and the stepped portion 2b of the soundproof door plate 2 to block the gap 3, and is attached to the soundproof door plate 2. It is being Therefore, gap 3
is the first one in the front and back in the inside and outside direction with the airtight material 4 as a reference.
It is divided into a gap part 3a and a second gap part 3b.
On the other hand, the airtight material 4' on the other side is connected to the stepped portion 1c on the other side of the door frame 1 when the soundproof door plate 2 is closed.
and the outer surface of the soundproof door plate 2 facing one side of the stile 2A to block the end of the gap 3, and is attached to the door frame 1. Then, the soundproof door plate 2
The step difference between the side step portions 2b is increased, so that in the closed state, the width l 1 of the first gap portion 3a is equal to the width of the second gap portion 3b.
This is because the width of l is smaller than 2 .
上記の実施例によれば、乾燥剤１３によりガラ
ス板間空間Ａ内が乾燥状態に維持されるから、ガ
ラス板２Ｂ内面での結露が防止される。しかも、
防音ドア板２の遮音性能TLは、防音ドア板２へ
の一方側からの入射音圧レベルをPo、他方側へ
の透過音圧レベルをＰとすると、
TL＝20log（Po／Ｐ）（dB） ……（）
で示され、一方側のガラス板２Ｂから入射してガ
ラス板間空間Ａに透過した音の音圧レベル低下量
ΔLは、防音ドア板２内に吸音材１２がないとき
の防音ドア板２内での吸音力をAo、吸音材１２
があるときの吸音力をＡとすると、
ΔL＝10log（Ａ／Ao）（dB） ……（）
で示されるのであつて、遮音性能TLは、前式
（）のPo／Ｐが大きくなればなるほど良くな
り、Po／Ｐは、音圧レベル低下量ΔLが大きくな
るほど大きくなる。そして、上述した実施例にお
いては、吸音材１２を設けて、前式（）のＡ／
Aoを大きくすることにより、音圧レベル低下量
ΔLを大きくしてあるため、防音ドア板２による
遮音性能TLを優れたものにできるのである。な
お、仕切板８の厚さ、音波透過孔１１のピツチ、
径、吸音材８の種類を選択することによつて、特
定周波数の遮音性能を良くすることができる。そ
の上、隙間３内に入つた音が音波透過孔５を介し
てドア枠１内に入り、吸音材６により吸収される
から、気密材４のみで隙間３からの音の透過を減
少させる場合に比較して、隙間３を透過する音の
透過損失が第４図に示すように大きくなり、隙間
３に対する遮音性能を優れたものにできる。そし
て、第１隙間部３ａの幅l1よりも第２隙間部３ｂ
の幅l2を大に設定してあることで、幅の小さい第
１隙間部３ｂで、高周波数域の音がよく吸収さ
れ、且つ、幅の小さい第２隙間部３ｂで低周波数
域の音がよく吸収され、全域にわたつてその音圧
レベルを小さくできる。なお、第４図中の線イが
本実施例の場合における透過損失を示し、線ロが
気密材４のみによる場合の透過損失を示す。な
お、遮音上、音波透過孔５の開孔率は30％以上、
吸音材６の密度は24Kg／m3以上であることが望ま
しい。 According to the embodiment described above, since the inside of the space A between the glass plates is maintained in a dry state by the desiccant 13, dew condensation on the inner surface of the glass plate 2B is prevented. Moreover,
The sound insulation performance TL of the soundproof door plate 2 is as follows: TL=20log(Po/P)(dB) where Po is the sound pressure level incident on the soundproof door plate 2 from one side and P is the sound pressure level transmitted to the other side. )......(), the sound pressure level reduction ΔL of the sound incident from the glass plate 2B on one side and transmitted to the space A between the glass plates is the amount when there is no sound absorbing material 12 in the soundproof door plate 2. The sound absorption power inside the soundproof door plate 2 is Ao, and the sound absorption material 12
If A is the sound absorption power when It gets better, and Po/P becomes larger as the sound pressure level reduction amount ΔL becomes larger. In the embodiment described above, the sound absorbing material 12 is provided, and A/
Since the sound pressure level reduction amount ΔL is increased by increasing Ao, the sound insulation performance TL of the sound insulation door plate 2 can be made excellent. Note that the thickness of the partition plate 8, the pitch of the sound wave transmission holes 11,
By selecting the diameter and the type of sound absorbing material 8, it is possible to improve the sound insulation performance at a specific frequency. Furthermore, since the sound that enters the gap 3 enters the door frame 1 through the sound wave transmission hole 5 and is absorbed by the sound absorbing material 6, the case where the sound transmission from the gap 3 is reduced by using only the airtight material 4. Compared to the above, the transmission loss of sound passing through the gap 3 is increased as shown in FIG. 4, and the sound insulation performance for the gap 3 can be improved. Then, the second gap portion 3b is larger than the width l 1 of the first gap portion 3a.
By setting the width l 2 to be large, high-frequency sounds are well absorbed in the first gap 3b with a small width, and low-frequency sounds are absorbed in the second gap 3b with a small width. is well absorbed, reducing the sound pressure level over the entire area. Note that line A in FIG. 4 shows the transmission loss in the case of this embodiment, and line B shows the transmission loss in the case of only the airtight material 4. In addition, for sound insulation, the aperture ratio of the sound wave transmission holes 5 is 30% or more,
It is desirable that the density of the sound absorbing material 6 is 24 kg/m 3 or more.
なお、本考案は、次に列記するようにして実施
しても良い。 Note that the present invention may be implemented as listed below.
(イ) 音波透過孔５を丸孔ではなくスリツトに構成
する。(a) The sound wave transmission hole 5 is configured as a slit instead of a round hole.
(ロ) 音波透過孔５付きの板部１ａを網をもつて構
成する。(b) The plate portion 1a with the sound wave transmission holes 5 is constructed with a net.
(ハ) 吸音材６として、グラスウールではなく、ロ
ツクウールや連続気泡の発泡ウレタンを利用す
る。(c) As the sound absorbing material 6, use rock wool or open-cell urethane foam instead of glass wool.
第１図ないし第４図は本考案の実施例を示し、
第１図は縦断面図、第２図は斜視図、第３図は横
断面図、第４図は透過損失を示すグラフである。
１……建具枠、１ａ……板部、２……防音戸、
３……隙間、３ａ……第１隙間部、３ｂ……第２
隙間部、４，４′……気密材、、５……音波透過
孔、６……吸音材、l1……第１隙間部の幅、l2…
…第２隙間部の幅。
1 to 4 show embodiments of the present invention,
FIG. 1 is a longitudinal sectional view, FIG. 2 is a perspective view, FIG. 3 is a cross-sectional view, and FIG. 4 is a graph showing transmission loss. 1...Joining frame, 1a...Plate part, 2...Soundproof door,
3...Gap, 3a...First gap, 3b...Second
Gap portion, 4, 4'... Airtight material, 5... Sound wave transmission hole, 6... Sound absorbing material, l 1 ... Width of first gap portion, l 2 ...
...Width of the second gap.
Claims (1)
間３を遮断する気密材４を設けてある防音建具に
おいて、前記隙間３を、前記防音戸２の内外方向
の中間部に配置した前記気密材４を基準として、
前記内外方向の前後に第１隙間部３ａと第２隙間
部３ｂに形成し、前記建具枠１を中空状に構成す
るとともに、前記第１、第２隙間部３ａ，３ｂに
面する前記建具枠１の板部１ａの夫々に複数の音
波透過孔５を形成し、かつ、前記建具枠１内に吸
音材６を充填し、前記第１隙間部３ａの幅l1より
も前記第２隙間部３ｂの幅l2を大に設定してある
防音建具。 In the soundproofing fittings in which an airtight material 4 is provided to block a gap 3 between the soundproofing door 2 and the fittings frame 1 in a closed state, the gap 3 is arranged in the middle part of the soundproofing door 2 in the inside and outside direction. Based on airtight material 4,
A first gap portion 3a and a second gap portion 3b are formed in the front and rear of the inner and outer directions, the fitting frame 1 is configured to be hollow, and the fitting frame faces the first and second gap portions 3a and 3b. 1, a plurality of sound wave transmission holes 5 are formed in each of the plate parts 1a, and a sound absorbing material 6 is filled in the fitting frame 1, so that the second gap part is wider than the width l1 of the first gap part 3a. Soundproof fittings with a large width l2 of 3b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985129172U JPH0426632Y2 (en) | 1985-08-23 | 1985-08-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985129172U JPH0426632Y2 (en) | 1985-08-23 | 1985-08-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6236187U JPS6236187U (en) | 1987-03-03 |
| JPH0426632Y2 true JPH0426632Y2 (en) | 1992-06-25 |
Family
ID=31025509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985129172U Expired JPH0426632Y2 (en) | 1985-08-23 | 1985-08-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426632Y2 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2692840B2 (en) * | 1988-03-11 | 1997-12-17 | 松下電工株式会社 | Soundproof door |
| JPH0737757B2 (en) * | 1990-03-14 | 1995-04-26 | 小松ウオール工業株式会社 | Sound insulation mechanism of partition panel in moving partition |
| JPH0737758B2 (en) * | 1990-04-03 | 1995-04-26 | 小松ウオール工業株式会社 | Door device for moving partition |
| JPH04291767A (en) * | 1991-03-20 | 1992-10-15 | Fuji Electric Co Ltd | Conductivity modulation mosfet |
| JPH04338794A (en) * | 1991-05-15 | 1992-11-26 | Matsushita Electric Ind Co Ltd | Cooling device of large-sized video display device |
| JPH06289468A (en) * | 1993-03-30 | 1994-10-18 | Olympus Optical Co Ltd | Printed board mounting structure for camera |
| JPH07102856A (en) * | 1993-10-12 | 1995-04-18 | Nippon Sheet Glass Co Ltd | Door and doorframe structure |
| JPH07293126A (en) * | 1994-04-20 | 1995-11-07 | Kawai Musical Instr Mfg Co Ltd | Soundproof panel with window |
| JP3705894B2 (en) * | 1997-03-28 | 2005-10-12 | カヤバ システム マシナリー株式会社 | Sound insulation structure |
| JPH11229722A (en) * | 1998-02-12 | 1999-08-24 | Asahi Glass Co Ltd | Double glazing |
| JP2005155226A (en) * | 2003-11-27 | 2005-06-16 | Sekisui House Ltd | Sound absorption structure of sash |
| JP2011102467A (en) * | 2009-11-10 | 2011-05-26 | Kosho:Kk | Soundproof door |
| JP6385043B2 (en) * | 2013-10-15 | 2018-09-05 | 大和ハウス工業株式会社 | Sound insulation structure for sound transmitted through gaps inside buildings |
| JP6812665B2 (en) * | 2016-05-31 | 2021-01-13 | 株式会社イトーキ | Double glass panel device with sound insulation |
-
1985
- 1985-08-23 JP JP1985129172U patent/JPH0426632Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236187U (en) | 1987-03-03 |
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