JPS6240490B2 - - Google Patents
Info
- Publication number
- JPS6240490B2 JPS6240490B2 JP57061366A JP6136682A JPS6240490B2 JP S6240490 B2 JPS6240490 B2 JP S6240490B2 JP 57061366 A JP57061366 A JP 57061366A JP 6136682 A JP6136682 A JP 6136682A JP S6240490 B2 JPS6240490 B2 JP S6240490B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- polyurethane foam
- wall
- gun
- tip
- 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)
- Coating Apparatus (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は建物壁部の内部をガラス繊維などの繊
維状断熱材とこれに接してポリウレタンフオーム
を充填してなる建物壁部の断熱施工方法に関し、
またこの施工の際使用するポリウレタンフオーム
発泡機のガンのノズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for insulating a building wall by filling the inside of the building wall with a fibrous insulation material such as glass fiber and polyurethane foam in contact with the fibrous insulation material.
It also relates to the gun nozzle of the polyurethane foam foaming machine used during this construction.
近年住宅などの断熱を目的として、壁部の外壁
材と内壁材の間の空隙部にガラス繊維などの繊維
状断熱材を詰めて建物の断熱施工をすることが多
く行なわれている。しかしながらこの種の断熱施
工によると、時間の経過とともに繊維状断熱材が
吸湿し断熱性能が低下したり、自然落下により断
熱層の部分空洞化が生じたりする問題が起つてい
る。これらの補修や、更に断熱性能を高めて居住
環境を向上させるための適当な方法が従来はなか
つた。 BACKGROUND ART In recent years, for the purpose of insulating houses, etc., buildings are often insulated by filling the void between the outer wall material and the inner wall material with fibrous heat insulating material such as glass fiber. However, with this type of insulation construction, there are problems in that the fibrous insulation material absorbs moisture over time, reducing its insulation performance, and that the insulation layer partially becomes hollow due to natural fall. Until now, there has been no suitable method for repairing these or for improving the living environment by further increasing the insulation performance.
即ちこれらの断熱改修では従来内壁材などを剥
してポリウレタンフオームをスプレー発泡する工
法や、板状発泡体の断熱材を貼り付ける工法が取
られて来た。 In other words, these insulation renovations have conventionally involved removing inner wall materials and spraying polyurethane foam, or pasting sheet-shaped foam insulation materials.
しかしこれらの工法では再度新しい内壁材など
を取り付けることが必要となり、工期や費用の点
で問題が多い。一方、内壁材などに孔をあけ、ポ
リウレタンフオームを注入発泡して充填させる工
法が検討されたが、これは内壁材などを剥さず壁
紙だけを貼り変えれば済み、前２工法に比べ利点
がある。しかしながら繊維状断熱材がある場合
は、ポリウレタンフオーム原液注入の際の原液の
勢いの強さにより、原液が繊維状断熱材の裏側に
回り込んだり、繊維状断熱材の隙間に含浸したり
して発泡してしまうため、第１図に示したよう
に、繊維状断熱材１６とポリウレタンフオーム１
５が混然となつてしまいポリウレタンフオーム１
５が完全に添設充填したかどうか確認できない欠
点があつた。 However, these construction methods require the installation of new interior wall materials, which poses many problems in terms of construction time and cost. On the other hand, a method of drilling holes in the interior wall material and filling them with polyurethane foam has been considered, but this method only requires replacing the wallpaper without removing the interior wall material, which has an advantage over the previous two methods. be. However, if there is a fibrous insulation material, due to the strength of the undiluted solution when injecting the polyurethane foam undiluted solution, the undiluted solution may get around to the back side of the fibrous insulation material or impregnate into the gaps in the fibrous insulation material. As shown in FIG. 1, the fibrous insulation material 16 and the polyurethane foam 1
5 gets mixed up and polyurethane foam 1
There was a drawback that it was not possible to confirm whether or not 5 was completely filled.
一方、ポリウレタンフオーム原液を一般の低圧
発泡機を用いて注入することも考えられたが、発
泡圧が大きい点で実用迄に至らなかつた。 On the other hand, it was considered to inject the polyurethane foam stock solution using a general low-pressure foaming machine, but this was not practical due to the high foaming pressure.
本発明は従来工法のこのような欠点に鑑み鋭意
研究の結果なされたものである。 The present invention was made as a result of intensive research in view of these drawbacks of conventional construction methods.
すなわち本発明は、建物壁内部に設けた繊維状
断熱材層に内壁材若しくは外壁材に開けた孔から
ポリウレタンフオーム発泡機のガンのノズル部を
挿入し、ポリウレタンフオームを泡状で吐出する
際に、泡状液をノズルの周囲から上下左右方向に
向かつて吐出し、発泡させて繊維状断熱材層にポ
リウレタンフオームを添設充填させることを特徴
とする建物壁部の断熱施工方法である。 That is, the present invention provides a method for inserting the nozzle part of a gun of a polyurethane foam foaming machine into a fibrous heat insulating material layer provided inside a building wall through a hole made in an inner wall material or an outer wall material, and discharging polyurethane foam in the form of foam. This is a method for insulating a building wall, which is characterized by discharging a foamy liquid from around a nozzle in vertical and horizontal directions, foaming it, and filling a fibrous insulation layer with polyurethane foam.
また本発明は、建物の内壁材若しくは外壁材に
開けた孔から挿入して、壁内部にポリウレタンフ
オームを吐出するノズルであつて、空洞部を有す
る筒状体で先端が封止されており、先端部近傍の
筒状体周辺部に複数個の吐出孔が形成され、他端
開口部がガン本体の吐出口に接合する接合部をそ
なえてなるポリウレタンフオーム注入発泡ガン用
ノズルである。 The present invention also provides a nozzle for discharging polyurethane foam into the interior of the wall by inserting it through a hole drilled in the inner or outer wall material of a building, the tip of which is sealed with a cylindrical body having a cavity, This is a nozzle for a polyurethane foam injection foaming gun, in which a plurality of discharge holes are formed in the periphery of a cylindrical body near the tip, and the other end opening is provided with a joint portion that joins to a discharge port of the gun body.
以下図面実施例に基づいて説明する。 The following description will be made based on the drawing examples.
第３図は本発明のノズル１をポリウレタンフオ
ーム注入発泡ガン本体８の吐出口７に取り付けた
状態のノズル１及び吐出口７の部分のみ断面を示
した説明図である。ノズル１は空洞部６を有する
筒状体２で先端部５が封止されており、先端部５
近傍の筒状体２の周辺部に複数個の吐出孔３が形
成されている。また筒状体２の他端は開口されて
おり、ガン本体８の吐出口７に接合する接合部４
になつている。吐出孔３はウレタン原液の吐出の
勢いを弱め、しかも各孔からの吐出量を均一にす
るためには孔径は２〜４mmが好ましく、数はノズ
ルの外径Ｄと吐出孔３の孔径との関係により決定
するが、これらの関係からノズル１の周囲に均一
に吐出するためには３個以上が好ましい。ノズル
１の外径Ｄは、第１図、第２図に示した壁内への
注入孔１８を通してノズル１を挿入することがで
きる太さであり、注入孔１８は壁内へ充填された
フオームが注入孔１８から漏れる量を最少にし、
しかも充填したか否かを確認することができる程
度の大きさであることから５〜７mmが好ましい。
ノズル１の挿入部の長さ１は注入孔１８をあける
内壁材などの厚味より２〜５mm程度長い長さが好
ましい。接合部４はガン本体８の吐出口７に接合
できる構造をそなえており、この実施例において
は吐出口７の周囲に螺合するように螺子が形成さ
れているが、この他慣用されている接合構造であ
ればどのようなものでもよい。ノズル１は筒状で
あるが、円筒形状のものに限らず多角形状であつ
ても良い。またノズル１の材質は金属や耐溶剤性
のプラスチツク、たとえばポリエチレンが好まし
い。 FIG. 3 is an explanatory diagram showing a cross section of only the nozzle 1 and the discharge port 7 in a state where the nozzle 1 of the present invention is attached to the discharge port 7 of the polyurethane foam injection foaming gun main body 8. The nozzle 1 is a cylindrical body 2 having a cavity 6 with a sealed tip 5.
A plurality of discharge holes 3 are formed in the periphery of the cylindrical body 2 in the vicinity. The other end of the cylindrical body 2 is open, and a joint 4 is connected to the discharge port 7 of the gun body 8.
It's getting old. The diameter of the discharge holes 3 is preferably 2 to 4 mm in order to reduce the force of discharge of the urethane stock solution and to equalize the discharge amount from each hole. The number is determined depending on the relationship, but from these relationships, three or more are preferable in order to uniformly discharge around the nozzle 1. The outer diameter D of the nozzle 1 is such that the nozzle 1 can be inserted through the injection hole 18 into the wall shown in FIGS. minimize the amount of leakage from the injection hole 18,
Furthermore, the size is preferably 5 to 7 mm because it is large enough to confirm whether or not it is filled.
The length 1 of the insertion portion of the nozzle 1 is preferably about 2 to 5 mm longer than the thickness of the inner wall material in which the injection hole 18 is formed. The joint part 4 has a structure that can be joined to the discharge port 7 of the gun body 8, and in this embodiment, a thread is formed so as to be screwed around the discharge port 7, but there are other commonly used threads. Any bonding structure may be used. Although the nozzle 1 has a cylindrical shape, the nozzle 1 is not limited to a cylindrical shape and may have a polygonal shape. The material of the nozzle 1 is preferably metal or solvent-resistant plastic, such as polyethylene.
本発明のノズル１は第３図に示すようにポリウ
レタンフオーム注入発泡ガン本体８の吐出口７に
取付けて使用する。ガン本体８はグリツプ１１、
ミキシングヘツド１２、スイツチ１３からなり、
原液移送ホース９，１０を通して30Kg／cm2以上の
高圧で移送されてくる原液がミキシングヘツド１
２内で撹拌混合され、吐出口７を経てノズル１の
空洞部６を通りノズル１の吐出孔３から外部へ高
圧で吐出される。 The nozzle 1 of the present invention is used by being attached to the discharge port 7 of the polyurethane foam injection foaming gun body 8, as shown in FIG. The gun body 8 has a grip 11,
Consists of a mixing head 12, a switch 13,
The stock solution is transferred through the stock solution transfer hoses 9 and 10 at a high pressure of 30 kg/cm 2 or more to the mixing head 1.
The mixture is stirred and mixed in the nozzle 2, passes through the discharge port 7, passes through the cavity 6 of the nozzle 1, and is discharged to the outside from the discharge hole 3 of the nozzle 1 at high pressure.
本発明では、第２図イ，ロに示すように外壁材
１４と内壁材１７で形成される壁内部において、
ガラス繊維などの繊維状断熱材層１６にポリウレ
タンフオームを添設充填させるに当り、内壁材１
７に注入孔１８を開てノズル１を挿入し30Kg／cm2
以上の高圧で硬質ポリウレタンフオーム原液をフ
ロス法で注入し、密度30〜40Kg／cm2の硬質ポリウ
レタンフオーム層１５を形成させる。この際第３
図に示す本発明のノズル１を取付けたポリウレタ
ンフオーム発泡機のガンを使用し、ノズル１部分
を注入孔１から壁内部に挿入し、高圧で硬質ポリ
ウレタンフオーム原液を注入すると吐出孔３から
吐出された原液は泡状のフオーム材料１５′とな
つてノズル１の周囲に拡がり、発泡生長するの
で、吐出方向が上下左右に変換されるのととも
に、吐出孔３の数だけ吐出圧が分散されるから、
繊維状断熱材１６には殆んど原液の吐出圧はかか
らず、従つて繊維状断熱材１６中に原液が含浸し
たり、繊維状断熱材１６の裏側に回り込んだりす
ることがなく、繊維状断熱材１６層と硬質ポリウ
レタンフオーム層が明確に充填形成される。 In the present invention, as shown in FIG. 2 A and B, inside the wall formed by the outer wall material 14 and the inner wall material 17,
When adding and filling polyurethane foam to the fibrous heat insulating material layer 16 such as glass fiber, the inner wall material 1
Open the injection hole 18 in 7 and insert the nozzle 1. 30Kg/cm 2
A hard polyurethane foam stock solution is injected by the floss method under the above high pressure to form a hard polyurethane foam layer 15 having a density of 30 to 40 kg/cm 2 . At this time, the third
Using the gun of the polyurethane foam foaming machine equipped with the nozzle 1 of the present invention shown in the figure, insert the nozzle 1 part into the wall from the injection hole 1, and inject the hard polyurethane foam stock solution at high pressure, and it will be discharged from the discharge hole 3. The stock solution becomes a foamy foam material 15' and spreads around the nozzle 1, and as the foam grows, the discharge direction is changed to vertical and horizontal directions, and the discharge pressure is distributed by the number of discharge holes 3. ,
Almost no discharge pressure of the undiluted solution is applied to the fibrous heat insulating material 16, so that the undiluted solution does not impregnate the fibrous heat insulating material 16 or go around to the back side of the fibrous heat insulating material 16. Sixteen layers of fibrous insulation and a layer of rigid polyurethane foam are clearly packed.
また本発明のガンのノズルは単に第２図に示す
ような施工方法に使用することができるだけでな
く、対象面に対して垂直に直接吐出圧をかけるこ
とが好ましくないような場合にすべて適用できる
ことは当然である。 Furthermore, the gun nozzle of the present invention can be used not only for the construction method shown in Fig. 2, but also for all cases where it is not desirable to directly apply discharge pressure perpendicular to the target surface. Of course.
第１図は従来の施工例説明図、第２図は本発明
の施工例説明図、第３図は本発明のノズル部分の
断面を示した説明図である。
１……ノズル、３……吐出孔、４……接合部、
５……先端封止部、６……空洞部。
FIG. 1 is an explanatory diagram of a conventional construction example, FIG. 2 is an explanatory diagram of a construction example of the present invention, and FIG. 3 is an explanatory diagram showing a cross section of a nozzle portion of the present invention. 1...Nozzle, 3...Discharge hole, 4...Joint part,
5...Tip sealing part, 6...Cavity part.
Claims (1)
材若しくは外壁材に開けた孔からポリウレタンフ
オーム発泡機のガンのノズル部を挿入し、ポリウ
レタンフオームを泡状で吐出する際に、泡状液を
ノズルの周囲から上下左右方向に向かつて吐出
し、発泡させて繊維状断熱材層にポリウレタンフ
オームを添設充填させることを特徴とする建物壁
部の断熱施工方法。 ２ 建物の内壁材若しくは外壁材に開けた孔から
挿入して、壁内部にポリウレタンフオームを吐出
するノズルであつて、空洞部を有する筒状体で先
端が封止されており、先端部近傍の筒状体周辺部
に複数個の吐出孔が形成され、他端開口部がガン
本体の吐出口に接合する接合部をそなえてなるポ
リウレタンフオーム注入発泡ガン用ノズル。[Claims] 1. A nozzle of a gun of a polyurethane foam foaming machine is inserted into a fibrous insulation layer provided inside a building wall through a hole made in the inner or outer wall material, and polyurethane foam is discharged in the form of foam. A method for insulating a building wall, which comprises: discharging a foamy liquid from the periphery of a nozzle in vertical and horizontal directions, foaming it, and filling a fibrous insulation layer with polyurethane foam. 2 A nozzle that is inserted through a hole drilled in the interior or exterior wall material of a building and discharges polyurethane foam into the interior of the wall, the tip of which is sealed with a cylindrical body having a cavity, and the tip of which is sealed near the tip. A nozzle for a polyurethane foam injection foaming gun, which has a plurality of discharge holes formed around the periphery of a cylindrical body, and a joint portion at which the other end opening is joined to a discharge port of a gun body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061366A JPS58181942A (en) | 1982-04-13 | 1982-04-13 | Heat insulation of building wall part and nozzle for puring foaming gum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061366A JPS58181942A (en) | 1982-04-13 | 1982-04-13 | Heat insulation of building wall part and nozzle for puring foaming gum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58181942A JPS58181942A (en) | 1983-10-24 |
| JPS6240490B2 true JPS6240490B2 (en) | 1987-08-28 |
Family
ID=13169088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57061366A Granted JPS58181942A (en) | 1982-04-13 | 1982-04-13 | Heat insulation of building wall part and nozzle for puring foaming gum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58181942A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272169U (en) * | 1985-10-22 | 1987-05-08 | ||
| JP2701404B2 (en) * | 1988-12-29 | 1998-01-21 | アキレス株式会社 | Airtight insulation wall structure |
| JPH11131615A (en) * | 1997-10-28 | 1999-05-18 | Achilles Corp | Heat insulating wall structure of building |
| JP2015094088A (en) * | 2013-11-11 | 2015-05-18 | Ｂａｓｆ Ｉｎｏａｃポリウレタン株式会社 | Repair method of heat insulation wall |
| JP2017198071A (en) * | 2017-07-28 | 2017-11-02 | Ｂａｓｆ Ｉｎｏａｃポリウレタン株式会社 | Insulating wall repair method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435767U (en) * | 1977-08-15 | 1979-03-08 | ||
| JPS57104744A (en) * | 1980-12-19 | 1982-06-29 | Mitsui Toatsu Chemicals | Arrangement of urea foam |
-
1982
- 1982-04-13 JP JP57061366A patent/JPS58181942A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58181942A (en) | 1983-10-24 |
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