JP3528138B2 - Joint material - Google Patents
Joint materialInfo
- Publication number
- JP3528138B2 JP3528138B2 JP20604694A JP20604694A JP3528138B2 JP 3528138 B2 JP3528138 B2 JP 3528138B2 JP 20604694 A JP20604694 A JP 20604694A JP 20604694 A JP20604694 A JP 20604694A JP 3528138 B2 JP3528138 B2 JP 3528138B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- water
- return prevention
- sealing material
- prevention spring
- 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 - Lifetime
Links
Landscapes
- Building Environments (AREA)
- Finishing Walls (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建造物の相隣接する外
壁材同士の間に形成された目地に挿入して、該目地の漏
水を防止する目地材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint material which is inserted into joints formed between adjacent outer wall materials of a building to prevent water leakage of the joints.
【０００２】[0002]
【従来の技術】従来、この種目地材として実開平３−７
６９０１号及び実開昭６３−１５１６４８号公報に開示
されている。実開平３−７６９０１号公報のものは、頭
部から突出する脚部と、該脚部の両側に突設したゴム弾
性を有するシールリップと、頭部と直下に位置するシー
ルリップの間隔内にシールリップの先端より外方に突出
して設けたシール材とより成る目地材であり、実開昭６
３−１５１６４８号公報のものは、対向せる一対の軟質
側片間に嵌合溝を形成すると共にこの軟質側片の外側面
に弾性発泡体を設けて本体を形成し、該本体とは別体と
なった目地カバーの裏面に前記嵌合溝よりも幅の広い嵌
合体を設けて成る目地材である。2. Description of the Related Art Conventionally, as a base material for this type, 3-7
No. 6901 and Japanese Utility Model Laid-Open No. 63-151648. In Japanese Utility Model Laid-Open No. 3-76901, a leg portion protruding from the head portion, a rubber seal lip protruding from both sides of the leg portion, and a gap between the seal lip located directly below the head portion are provided. It is a joint material consisting of a sealing material that projects outward from the tip of the seal lip.
In Japanese Patent Laid-Open No. 3-151648, a fitting groove is formed between a pair of opposed soft side pieces, and an elastic foam is provided on the outer side surface of the soft side piece to form a main body, which is separate from the main body. Is a joint material which is provided with a fitting body wider than the fitting groove on the back surface of the joint cover.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、実開平
３−７６９０１号の目地材のシール材は、発泡シール材
であるが、２倍発泡程度の低発泡倍率で、かつ独立発泡
であるため硬く、目地への挿入が難しい。また、目地幅
のばらつきがあると、硬くて挿入できなかったり、ゆる
くて全く止水性能がなくなる。仮に目地に挿入できて
も、外壁材の側面（壁面目地）が粗面かつ親水性面であ
り、シール材が硬いため、粗面上に追従できず、これら
の界面が水の通り道となって漏水する、等の問題点があ
る。However, the sealing material of the joint material of Japanese Utility Model Laid-Open No. 3-76901 is a foam sealing material, but it is hard because it has a low expansion ratio of about 2 times and is independent foaming. Difficult to insert into joints. Also, if the joint width varies, it is hard and cannot be inserted, or it is loose and has no water stopping performance. Even if it can be inserted into the joint, the side surface (wall joint) of the outer wall material is a rough surface and a hydrophilic surface, and since the sealing material is hard, it cannot follow the rough surface, and these interfaces serve as water passageways. There are problems such as water leakage.
【０００４】実開昭６３−１５１６４８号の目地材は、
本体と目地カバーとで構成されているため、目地に本体
を装着後に、目地材を挿入しなければならず作業が面倒
になること、および目地材の側面に粘着材がついている
ため、目地に挿入するのが難しい、という問題がある。The joint material of Japanese Utility Model No. 63-151648 is
Since it is composed of the main body and the joint cover, it is necessary to insert the joint material after mounting the main body on the joint, which makes the work troublesome, and since the side surface of the joint material has an adhesive material, There is a problem that it is difficult to insert.
【０００５】本発明は、このような事情に鑑み目地への
挿入が容易であって、目地幅にばらつきがあったり外壁
材の側面が粗面かつ親水性面であっても追従が可能であ
り確実に止水できる目地材の提供を目的とする。In view of such circumstances, the present invention can be easily inserted into joints and can follow even if the joint width varies or the side surface of the outer wall material is rough and hydrophilic. The purpose is to provide a joint material that can reliably stop water.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、請求項１の発明の目地材は、頭部と脚部と脚部先端
の復帰防 止ばね部とが一体成形されたガスケット材と、
ガスケット材を目地に挿入したときに目地と接する水膨
潤性樹脂からなる発泡シール材とを備え、発泡シール材
が前記脚部先端の復帰防止ばね部に設けられていること
を特徴とする。請求項２の発明の目地材は、頭部と脚部
と脚部先端の復帰防止ばね部とが一体成形されたガスケ
ット材と、ガスケット材を目地に挿入したときに目地と
接する水膨潤性樹脂からなる発泡シール材とを備え、前
記脚部の中間に第２の復帰防止ばね部がさらに一体成形
されており、前記発泡シール材が第２の復帰防止ばね部
に設けられていることを特徴とする。請求項３の発明
は、請求項１または２記載の目地材であって、前記水膨
潤性樹脂からなる発泡シール材は、連続気泡体であるこ
とを特徴とする。請求項４の発明は、請求項１または２
記載の目地材であって、前記水膨潤性樹脂からなる発泡
シール材は、５０％圧縮時の硬さが３０〜７００ｇ／ｃ
ｍ２かつ水膨潤時の体積膨張率が３％以上であることを
特徴とする。In order to achieve the above object, a joint material according to the invention of claim 1 is a head, a leg and a tip of the leg.
And the return prevention spring portion and a gasket material which is integrally molded,
When the gasket material is inserted into the joint, water swelling that contacts the joint
With a foam sealing material made of a wettable resin, a foam sealing material
Is provided on the return prevention spring part at the tip of the leg part.
Is characterized by. The joint material of the invention of claim 2 is a head and a leg.
Gasket with the return prevention spring at the tip of the leg integrally molded
And the gasket material when the gasket material is inserted into the joint.
A foam sealing material made of a water-swellable resin in contact with
Second return prevention spring part is integrally molded in the middle of the leg part
And the foam sealing material is the second return prevention spring portion.
It is provided in. The invention of claim 3 is the joint material according to claim 1 or 2, wherein the foam sealing material made of the water-swellable resin is an open-cell body. The invention of claim 4 is the same as claim 1 or 2.
The joint material as described above, wherein the foamed sealing material made of the water-swellable resin has a hardness at 50% compression of 30 to 700 g / c.
m 2 and the volume expansion coefficient when swollen with water is 3% or more.
【０００７】[0007]
【作用】目地材は、発泡シール材がガスケット材の適所
に壁面目地に接するように設けられているため、ガスケ
ット材を芯材として目地に挿入できて挿入しやすく、か
つシール材は水膨潤性発泡シール材であるため、あらか
じめ水にぬらし膨潤開始前に目地挿入すると、発泡シー
ル材が吸水性のため表面がすべり易くなり目地挿入が一
層容易となる。[Function] As the joint material, the foam sealing material is provided at a proper position of the gasket material so as to contact the wall surface joint, so that the gasket material can be easily inserted into the joint as a core material, and the sealing material is water-swellable. Since it is a foamed sealant, if it is wetted with water beforehand and the joint is inserted before the start of swelling, the foamed sealant absorbs water, so that the surface becomes slippery and the joint is more easily inserted.
【０００８】また、発泡シール材は、水膨潤性のため水
と接触するとシール表面が柔軟になり、水膨張し水膨張
圧力も高くなる。従って、外壁材の側面（壁面目地）が
粗面かつ親水性面であってもシール材の柔軟化と水膨潤
圧力の高まりによる圧接力の向上で確実に止水される。
また、水膨潤性のため水と接触すると水膨潤するから、
目地巾にばらつきがあったり、夏冬で目地巾に変動が生
じても十分に追従できる。Further, since the foamed sealing material is water-swellable, when it comes into contact with water, the sealing surface becomes soft, and the water expands to increase the water expansion pressure. Therefore, even if the side surface (wall surface joint) of the outer wall material is a rough surface and a hydrophilic surface, the sealing material is softened and the water contact pressure is improved due to the increase in the water swelling pressure, so that the water is reliably stopped.
Also, since it swells in water, it swells when contacted with water,
Even if the joint width varies or the joint width changes in summer and winter, it can sufficiently follow.
【０００９】さらに、発泡シール材は、連続気泡率が５
０％以上のを連続気泡性とすると好ましく、硬さが低
く、かつ脱水しやすく吸水後の膨張がすみやかとなる。
従って、挿入作業性がよく、止水性も向上する。Further, the foam sealing material has an open cell ratio of 5
It is preferable that 0% or more has an open-cell property, the hardness is low, and it is easy to dehydrate and the expansion after water absorption is quick.
Therefore, the insertion workability is good, and the waterproofness is also improved.
【００１０】またさらに、５０％圧縮時の硬さを３０〜
７００ｇ／ｃｍ２としたのは、作業性から言えば軟らか
いほど良いが、逆に止水性は軟らかすぎると悪くなり、
３０ｇ／ｃｍ２以下では軟らかすぎて止水性に効果がな
く、７００ｇ／ｃｍ２を越えると硬くて挿入ができなく
なるからである。また、水膨潤時の体積膨張率を３％以
上としたのは、この値以下であると目地巾のばらつき
や、夏冬の目地巾の変動に追従できないからである。Furthermore, the hardness at 50% compression is 30 to
From the viewpoint of workability, the softer it is, the better the value of 700 g / cm 2 is.
This is because if it is 30 g / cm 2 or less, it is too soft and has no effect on water stopping property, and if it exceeds 700 g / cm 2 , it is too hard to be inserted. Further, the reason why the volume expansion coefficient during swelling with water is set to 3% or more is that if it is less than this value, it is not possible to follow variations in joint width and variations in joint width in summer and winter.
【００１１】[0011]
【実施例】図１は本発明の第１実施例を示し、（Ａ）は
断面図、（Ｂ）は使用状態を示す断面図である。目地材
１は、ガスケット材２とシール材３とで構成される。ガ
スケット材２は、頭部２ａと脚部２ｂとで断面Ｔ字状に
形成された該脚部２ｂの先端に断面Ｖ字状の復帰防止ば
ね２ｃが設けられ、その復帰防止ばね２ｃの外側に水膨
潤性の発泡シール材３が固着されている。ガスケット材
２が合成樹脂、例えば軟質塩化ビニルで一体成形されて
いる。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention, (A) is a sectional view, and (B) is a sectional view showing a state of use. The joint material 1 is composed of a gasket material 2 and a seal material 3. The gasket material 2 is provided with a return prevention spring 2c having a V-shaped cross section at the tip of the leg portion 2b formed by a head 2a and a leg 2b and having a T-shaped cross section, and is provided outside the return prevention spring 2c. water-swellable foam sealant 3 is fixed. The gasket material 2 is integrally formed of synthetic resin, for example, soft vinyl chloride.
【００１２】前記復帰防止ばね２ｃは、図１（Ｂ）に示
すように目地１０に挿入されたとき、その復元力でシー
ル材３を、壁面目地に圧接させる作用と、目地１０から
の抜けを防止する作用をさせるものである。When the return prevention spring 2c is inserted into the joint 10 as shown in FIG. 1B, the restoring force of the return preventing spring 2c causes the sealing material 3 to press against the wall joint and prevents the seal 10 from coming off. It acts to prevent it.
【００１３】このように構成された目地材は、図１
（Ｂ）に示すように相隣接する外壁材１１，１２間の目
地１０に挿入して使用され、目地１０からの水の侵入を
防止する。従って、水膨潤性の発泡シール材３は、目地
１０に挿入したとき、外壁材１１，１２の側面（壁面目
地） に接するように設けられる。 The joint material constructed in this manner is shown in FIG.
As shown in (B), the eyes between the adjacent outer wall materials 11 and 12
It is used by inserting it into the ground 10 and prevents water from entering from the joint 10.
To prevent. Therefore, the water-swellable foam sealing material 3 is
When inserted in 10, the side surfaces of the outer wall materials 11 and 12 (wall surface eyes)
It is provided so that it touches the ground .
【００１４】しかして、図１（Ｂ）に示すように目地１
０に挿入して使用すると、復帰防止ばね２ｃにシール材
３が固着されているため、復帰防止ばね２ｃの復元力及
びシール材３の復元力と膨張力でシール材３が壁面目地
に圧接されるため止水性がよいこと、及び復帰防止バネ
２ｃの作用により目地からの抜けが防止される特徴を有
する。Then, as shown in FIG.
When inserted and used in 0, since the seal material 3 is fixed to the return prevention spring 2c, the seal material 3 is pressed against the wall joint by the restoring force of the return prevention spring 2c and the restoring force and expansion force of the seal material 3. Therefore, it has a feature that it has good waterproofness, and that the return prevention spring 2c prevents the joint from coming off from the joint.
【００１５】因に、外壁材１１，１２として繊維補強の
セメント板を使用した目地１０に、本例の目地材１を挿
入して使用したところ、目地の止水性は完全であった。
この挿入の時、目地材１を水でぬらした後膨張する前に
目地に挿入したところ、シール材３表面が膨潤樹脂のた
め滑り易くなりきわめて挿入しやすかった。By the way, when the joint material 1 of this example was inserted into the joint 10 using the fiber-reinforced cement plates as the outer wall materials 11 and 12, the joint was completely waterproof.
At this time, when the joint material 1 was wetted with water and then inserted into the joint before it was expanded, the surface of the sealing material 3 was swelling resin, so that it was slippery and very easy to insert.
【００１６】図２は本発明の第２の実施例を示す断面図
である。本例は前記第１実施例の改良タイプであり、ガ
スケット材２の脚部２ｂ中間に第２の復帰防止ばね２ｄ
が更に追加されたもので、あとは前記第１実施例と同様
である。ここで復帰防止ばね２ｃ，２ｄの材質をゴム弾
性の強い樹脂、例えばオレフィン系エラストマーで２層
成形すると、挿入時押し込み易く、かつ復元力があるた
め止水性も向上する。FIG. 2 is a sectional view showing a second embodiment of the present invention. This embodiment is an improved type of the first embodiment, and includes a second return prevention spring 2d in the middle of the leg portion 2b of the gasket material 2.
Is added, and the rest is the same as in the first embodiment. If the return prevention springs 2c and 2d are made of two layers of resin having a strong rubber elasticity, for example, an olefin elastomer, the return prevention springs 2c and 2d are easily pushed in at the time of insertion and have a restoring force, so that the water stopping property is also improved.
【００１７】本例は第２の復帰防止ばね２ｄが追加され
ているため、抜けの防止がより強化されること、及び暴
風雨の時、風がガスケット材２の頭部２ａ、複数の復帰
防止ばね２ｃ，２ｄで弱められるため目地材としての風
速耐久力が高まる特徴がある。In this example, since the second return prevention spring 2d is added, the prevention of coming off is further strengthened, and in the event of a storm, the wind blows the head 2a of the gasket material 2 and a plurality of return prevention springs. Since it is weakened by 2c and 2d, it has the characteristic that the wind speed durability as a joint material is enhanced.
【００１８】図３は本発明の第３の実施例を示し、
（Ａ）は断面図、（Ｂ）は使用状態を示す断面図であ
る。本例も、ガスケット材２が復帰防止ばね（第１の復
帰防止ばね）２ｃと第２の復帰防止ばね２ｄを有する点
で、前記第２実施例と同様であるが、本例は脚部２ｂ先
端の第１の復帰防止ばね２ｃの長さが第２の復帰防止ば
ね２ｄよりやや短くなっており、水膨潤性発泡シール材
３は、第２復帰防止ばね２ｄの外側に固着されている。FIG. 3 shows a third embodiment of the present invention,
(A) is sectional drawing, (B) is sectional drawing which shows a use condition. This example is also similar to the second embodiment in that the gasket material 2 has a return prevention spring (first return prevention spring) 2c and a second return prevention spring 2d, but this example has a leg portion 2b. The length of the first return prevention spring 2c at the tip is slightly shorter than that of the second return prevention spring 2d, and the water-swellable foam sealing material 3 is fixed to the outside of the second return prevention spring 2d.
【００１９】図３（Ｂ）は本例の使用状態を示している
が、同図に示すように使用時第１の復帰防止ばね２ｃ
は、シール材３に若干かぶさり、かつシール材３は壁面
目地に接地するように形成される。FIG. 3B shows the use state of this example. As shown in the figure, the first return preventing spring 2c during use is used.
Is slightly overlapped with the sealing material 3, and the sealing material 3 is formed so as to be in contact with the wall surface joint.
【００２０】本例は目地への挿入時、第１の復帰防止ば
ね２ｃが滑り易く、かつシール材３端部をおおうためシ
ール材３がまくれずきわめて挿入し易い。従って、正確
な挿入が可能となるし、作業性も向上する。In this example, the first return preventing spring 2c is slippery when it is inserted into the joint, and the end of the seal material 3 is covered so that the seal material 3 does not curl up and is extremely easy to insert. Therefore, accurate insertion is possible and workability is improved.
【００２１】本発明の水膨潤性発泡シール材としては、
ポリウレタン，ポリエチレン，ポリエチレン−酢酸ビニ
ル共重合体などの合成樹脂やＳＢＲ，ポリブタジエンな
どの合成ゴム、天然ゴムなどに、水膨潤性ポリマーを配
合し発砲したもの、及びあらかじめ得られた発泡体に水
膨潤性ポリマーを含浸させたもの等を挙げることができ
る。水膨潤性ポリマーは、例えばアクリル酸系ポリマー
として、アクリル酸系ポリマーのアルカリ金属塩、ポリ
ビニルアルコール−ポリアクリル酸共重合体のアルカリ
金属塩であり、その他、ポリイソブチレン−無水マレイ
ン酸のアルカリ金属塩、親水性ポリウレタンやセルロー
ス系ポリマーなど合成高分子系や天然高分子系のものが
使用できる。As the water-swellable foam sealing material of the present invention,
Polyurethane, polyethylene, polyethylene-vinyl acetate copolymer, and other synthetic resins, SBR, polybutadiene, and other synthetic rubbers, natural rubber, etc., blended with a water-swelling polymer, and foamed; There may be mentioned those impregnated with a hydrophilic polymer. The water-swellable polymer is, for example, an acrylic acid-based polymer, an alkali metal salt of an acrylic acid-based polymer, an alkali metal salt of a polyvinyl alcohol-polyacrylic acid copolymer, or other polyisobutylene-maleic anhydride alkali metal salt. Synthetic polymer or natural polymer such as hydrophilic polyurethane or cellulosic polymer can be used.
【００２２】本発明の水膨潤性発泡シール材としては、
ポリウレタン系発泡体及びオレフィン系発泡体が好まし
い。その理由は発泡性シール材がポリウレタン系発泡体
であると、ゴム弾性が高く、かつ連続気泡性が得られ易
い。また、オレフィン系発泡体であると連続気泡率を可
変し易く、かつ連続気泡品はその圧縮硬さが低いので挿
入作業性がよい。As the water-swellable foam sealing material of the present invention,
Polyurethane-based foams and olefin-based foams are preferred. The reason is that when the expandable sealing material is a polyurethane-based foam, rubber elasticity is high and open cell properties are easily obtained. Further, the olefin foam is easy to change the open cell ratio, and the open cell product has a low compression hardness, so that the insertion workability is good.
【００２３】また、水膨潤性発泡シール材としては、５
０％圧縮時の硬さが３０〜７００ｇ／ｃｍ２、かつ水膨
潤時の体積膨張率が３％以上であるのが好ましい。それ
は作業性から言えば柔らかいほど良いが、逆に止水性は
軟らかすぎると悪くなり、３０ｇ／ｃｍ２以下では柔ら
かすぎて止水性に効果がなく、７００ｇ／ｃｍ２を越え
ると硬くて挿入できない。従って、５０％圧縮時の硬さ
は３０〜７００ｇ／ｃｍ２が好ましい。また、水膨潤時
の体積膨張率を３％以上としたのは、この値以下である
と目地巾のばらつきや、夏冬の目地巾の変動に追従でき
ないからである。As the water-swellable foam sealing material, 5
It is preferable that the hardness at 0% compression is 30 to 700 g / cm 2 and the volume expansion rate at water swelling is 3% or more. It is better soft speaking from the work of, reverse to the water cut-off will be bad too soft, there is no effect on the water cut-off too soft in 30g / cm 2 or less, can not be inserted into the hard and more than 700g / cm 2. Therefore, the hardness at 50% compression is preferably 30 to 700 g / cm 2 . Further, the reason why the volume expansion coefficient during swelling with water is set to 3% or more is that if it is less than this value, it is not possible to follow variations in joint width and variations in joint width in summer and winter.
【００２４】次に水膨潤性発泡シール材の配合剤の一例
を示す。
Next, an example of the compounding agent of the water-swellable foam sealing material will be shown.
【００２５】前記配合剤により得られた水膨潤性発泡シ
ール材は、密度０．０４８ｇ／ｃｍ３の連続気泡体で、
５０％圧縮時の硬さ７０ｇ／ｃｍ２、水膨潤時の体積膨
張率１１．８％であった。The water-swellable foam sealing material obtained by the above compounding agent is an open-cell body having a density of 0.048 g / cm 3 ,
The hardness at 50% compression was 70 g / cm 2 , and the volume expansion coefficient at water swelling was 11.8%.
【００２６】ここで５０％圧縮時の硬さの測定方法は、
次の通りである。５０ｍｍ×５０ｍｍ×１０ｍｍ（厚
み）のサンプルを圧縮スピード５０ｍｍ／分で５ｍｍま
で圧縮し、そこで２０秒経過後の荷重を読み取り、この
値を表面積で除した値が５０％圧縮時の硬さである。ま
た、体積膨張率の測定方法は、５０ｍｍ×５０ｍｍ×１
０ｍｍ（厚み）のサンプルを無圧縮で水面下１００ｍｍ
の位置に５時間放置し、その後取り出し寸法を測る。乾
燥時の体積に対する膨潤後の体積の増加割合を体積膨張
率とする。さらに、止水性の測定方法は、建築用外壁材
の水密試験にもとづいて行った。Here, the method for measuring the hardness at 50% compression is
It is as follows. A sample of 50 mm × 50 mm × 10 mm (thickness) was compressed to 5 mm at a compression speed of 50 mm / min, the load after 20 seconds was read there, and the value obtained by dividing this value by the surface area is the hardness at 50% compression. . Moreover, the measuring method of the volume expansion coefficient is 50 mm × 50 mm × 1
0mm (thickness) sample is 100mm under water surface without compression
Leave at the position for 5 hours, and then take out and measure the dimensions. The rate of increase in the volume after swelling with respect to the volume during drying is defined as the volume expansion rate. Further, the water-stopping property was measured based on the watertightness test of the building exterior wall material.
【００２７】[0027]
【発明の効果】以上詳細に説明した通り本発明によれ
ば、次のような効果を奏するものである。
（１）発泡シール材は、水膨潤性のため水と接触すると
シール表面が柔軟になるし、水膨張して水膨張圧力も高
くなる。従って、外壁材の側面（壁面目地）が粗面かつ
親水性面であってもシール材の柔軟化と水膨張圧力の高
まりによる圧接力の向上で確実に止水できる。As described in detail above, the present invention has the following effects. (1) Since the foam sealing material is water-swellable, the sealing surface becomes soft when it comes into contact with water, and the water expands to increase the water expansion pressure. Therefore, even if the side surface (wall surface joint) of the outer wall material is a rough surface and a hydrophilic surface, it is possible to surely stop water by softening the sealing material and improving the pressure contact force by increasing the water expansion pressure.
【００２８】（２）水膨潤性のため水と接触すると水膨
張するから、目地巾にばらつきがあったり、夏冬で目地
巾に変動が生じても十分に追従できる。(2) Because of the water swelling property, it expands when it comes into contact with water, so that it can sufficiently follow even if the joint width varies or the joint width changes in summer and winter.
【００２９】（３）ガスケット材を芯材として目地に挿
入できるから挿入し易く、かつシール材が水膨潤性であ
るため予め水にぬらし膨潤開始前に目地挿入するとシー
ル材が吸水性のため表面が滑り易く目地挿入が一層容易
となる。(3) Since the gasket material can be inserted into the joint as a core material, it is easy to insert, and since the seal material is water-swellable, if the joint material is wetted in water beforehand and the joint is inserted before the start of swelling, the seal material absorbs water, so that the surface Is slippery, and joint insertion becomes easier.
【００３０】（４）ガスケット材が復帰防止ばねを有す
るため、目地への挿入時、復帰防止ばねが滑り易く、か
つシール材端部を覆うためシール材がまくれず、挿入し
易く作業性が向上すると共に、正確な挿入が可能とな
る。[0030] (4) gasket material having a return prevention spring
Therefore, at the time of insertion into the joint, the return prevention spring is slippery, and since the end portion of the sealing material is covered, the sealing material does not curl up, the insertion is facilitated, workability is improved, and accurate insertion is possible.
【００３１】（５）復帰防止ばねを有することにより、
目地に挿入後、復帰防止ばねが抜けを防止するため、抜
けにくい。(5) By having a return prevention spring,
The return prevention spring prevents the spring from coming off after it is inserted into the joint, making it difficult to pull out.
【図１】本発明の第１実施例を示し、（Ａ）は断面図、
（Ｂ）は使用状態を示す断面図である。FIG. 1 shows a first embodiment of the present invention, (A) is a sectional view,
(B) is a cross-sectional view showing a usage state.
【図２】本発明の第２実施例を示す断面図である。 FIG. 2 is a sectional view showing a second embodiment of the present invention.
【図３】本発明の第３実施例を示し、（Ａ）は断面図、
（Ｂ）は使用状態を示す断面図である。 FIG. 3 shows a third embodiment of the present invention, (A) is a sectional view,
(B) is a cross-sectional view showing a usage state.
１ 目地材 ２ ガスケット材 ２ａ 頭部 ２ｂ 脚部 ２ｃ 復帰防止ばね ２ｄ 第２の復帰防止ばね ３ 水膨潤性発泡シール材 １０ 目地 １１，１２ 外壁材 1 joint material 2 Gasket material 2a head 2b leg 2c Return prevention spring 2d Second return prevention spring 3 Water-swellable foam sealing material 10 joints 11,12 Outer wall material
フロントページの続き (72)発明者 池 嶋 泰 博 大阪市中央区伏見町４−２−６ (56)参考文献 特開 平２−252898（ＪＰ，Ａ) 特開 昭63−266272（ＪＰ，Ａ) 特開 平５−187018（ＪＰ，Ａ) 特開 平６−180054（ＪＰ，Ａ) 実開 平１−131706（ＪＰ，Ｕ) 実開 昭60−33203（ＪＰ，Ｕ) 実開 平５−3407（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 1/684 E04F 13/08 Front page continuation (72) Inventor Yasuhiro Ikeshima 4-2-6 Fushimi-cho, Chuo-ku, Osaka (56) Reference JP-A-2-252898 (JP, A) JP-A-63-266272 (JP, A) ) JP-A-5-187018 (JP, A) JP-A-6-180054 (JP, A) Actually open 1-131706 (JP, U) Actually open 60-33203 (JP, U) Actually open 5- 3407 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) E04B 1/684 E04F 13/08
Claims (4)
とが一体成形されたガスケット材と、ガスケット材を目
地に挿入したときに目地と接する水膨潤性樹脂からなる
発泡シール材とを備え、発泡シール材が前記脚部先端の
復帰防止ばね部に設けられていることを特徴とする目地
材。 1. A head portion, a leg portion, and a return prevention spring portion at the tip of the leg portion.
And the gasket material integrally molded with
Made of water-swellable resin that contacts the joint when inserted into the ground
A foam sealing material, and the foam sealing material is
Joints characterized by being provided in the return prevention spring part
Material.
とが一体成形されたガスケット材と、ガスケット材を目
地に挿入したときに目地と接する水膨潤性樹脂からなる
発泡シール材とを備え、前記脚部の中間に第２の復帰防
止ばね部がさらに一体成形されており、前記発泡シール
材が第２の復帰防止ばね部に設けられていることを特徴
とする目地材。 2. A head portion, a leg portion, and a return prevention spring portion at the tip of the leg portion.
And the gasket material integrally molded with
Made of water-swellable resin that contacts the joint when inserted into the ground
A foam sealing material is provided, and a second return prevention member is provided in the middle of the leg portion.
The foam spring seal is further formed by integrally forming the stop spring portion.
Characterized in that the material is provided in the second return prevention spring portion
And joint material.
は、連続気泡体であることを特徴とする請求項１または
２記載の目地材。3. The joint material according to claim 1, wherein the foam sealing material made of the water-swellable resin is an open-cell body.
は、５０％圧縮時の硬さが３０〜７００ｇ／ｃｍ２かつ
水膨潤時の体積膨張率が３％以上であることを特徴とす
る請求項１または２記載の目地材。4. The foam sealing material made of the water-swellable resin has a hardness at 50% compression of 30 to 700 g / cm 2 and a volume expansion coefficient of 3% or more at water swelling. The joint material according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20604694A JP3528138B2 (en) | 1994-08-08 | 1994-08-08 | Joint material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20604694A JP3528138B2 (en) | 1994-08-08 | 1994-08-08 | Joint material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849315A JPH0849315A (en) | 1996-02-20 |
| JP3528138B2 true JP3528138B2 (en) | 2004-05-17 |
Family
ID=16516990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20604694A Expired - Lifetime JP3528138B2 (en) | 1994-08-08 | 1994-08-08 | Joint material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3528138B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5438329B2 (en) * | 2009-01-26 | 2014-03-12 | パナホーム株式会社 | Irumi corner structure |
| JP6451945B2 (en) * | 2015-03-24 | 2019-01-16 | 東亜ケミカル株式会社 | Sealing material interposed in joints of concrete products |
-
1994
- 1994-08-08 JP JP20604694A patent/JP3528138B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0849315A (en) | 1996-02-20 |
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