JPH0529253Y2 - - Google Patents
Info
- Publication number
- JPH0529253Y2 JPH0529253Y2 JP15112887U JP15112887U JPH0529253Y2 JP H0529253 Y2 JPH0529253 Y2 JP H0529253Y2 JP 15112887 U JP15112887 U JP 15112887U JP 15112887 U JP15112887 U JP 15112887U JP H0529253 Y2 JPH0529253 Y2 JP H0529253Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaped base
- rod
- adhesive layer
- joint sealing
- base material
- 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
- 239000000463 material Substances 0.000 claims description 12
- 239000003566 sealing material Substances 0.000 claims description 11
- 239000011162 core material Substances 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920000800 acrylic rubber Polymers 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- -1 telephone Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は主としてボツクスカルバート用の目
地封かん材に関するものである。[Detailed description of the invention] (Field of industrial application) This invention mainly relates to a joint sealing material for box culverts.
（従来の技術）
従来、電力、上下水道、ガス、電話さらに光フ
アイバーなどの各種地下布設工事は、個々別々に
工事が行われて道路が年中掘りかえされていた
が、都市交通、美観、騒音、点検補修の容易さな
どの理由で共同溝化が進んで来ている趨勢にあ
り、地下埋設構築物の一種であるボツクスカルバ
ートが広く使用されている。(Conventional technology) In the past, various types of underground installation work such as electricity, water, sewage, gas, telephone, and optical fiber were carried out separately, and roads were rebuilt throughout the year. Due to noise, ease of inspection and repair, and other reasons, there is a trend towards common ditches, and box culverts, which are a type of underground structure, are being widely used.
そしてこのボツクスカルバート接合部からの漏
水を防ぐ目的で目地封かん材が使用されている
が、従来の目地の封かん材は、断面形状が長方形
または台形が多く、材質として天然ゴム、クロロ
プレンゴム、ブチルゴム、EPDM（エチレンプロ
ピレン共重合体）その他の合成ゴムなどが使用さ
れた粘着材付きのシート及び発泡体が用いられて
いる。 Joint sealants are used to prevent water leakage from these box culvert joints, but conventional joint sealants often have a rectangular or trapezoidal cross-section, and are made of natural rubber, chloroprene rubber, butyl rubber, etc. Adhesive sheets and foams made of EPDM (ethylene propylene copolymer) and other synthetic rubbers are used.
（考案が解決しようとする問題点）
しかるに、従来のこの種目地封かん材は、断面
形状が長方形、台形などの棒状基材の外周全面ま
たは殆ど全面にアクリル系またはブチルゴム系の
粘着剤層が形成されたものが多く、従つて施工時
に目地封かん材同志が接着し易くて作業が煩瑣で
厄介となり、作業性の劣化は避けられなかつた。
またこれら目地封かん材では中芯が入つていない
ために、施工時にどうしても引き伸ばされ、その
後経時変化で収縮し、両端末接合部が次第に開い
て来る欠点があり、該部からの漏水を余儀なくさ
れるものであつた。(Problem to be solved by the invention) However, in this type of conventional joint sealing material, an acrylic or butyl rubber adhesive layer is formed on the entire or almost entire outer periphery of a rod-shaped base material with a rectangular or trapezoidal cross-sectional shape. Therefore, during construction, the joint sealing materials tend to adhere to each other, making the work cumbersome and troublesome, and deterioration of workability is unavoidable.
Furthermore, since these joint sealing materials do not have a core, they are inevitably stretched during construction, and then shrink over time, causing the joints at both ends to gradually open, forcing water to leak from these areas. It was hot.
（問題点を解決するための手段）
この考案は上記問題点を解決するためになされ
たもので、合成ゴムなどでなる断面形状が方形、
台形または半円形などの棒状基材の上下両面また
は下面に、伸びない物性の芯材を介入した粘着剤
層を一体に設け、剥離紙を貼付してなる目地封か
ん材を提供するものである。(Means for solving the problem) This idea was made to solve the above problem.
To provide a joint sealing material in which an adhesive layer with a core material having non-stretchable physical properties is integrally provided on both upper and lower surfaces or the lower surface of a rod-shaped base material such as a trapezoid or semicircle, and a release paper is pasted.
この考案の実施例を以下図面について詳しく説
明すると、先ず１は、天然ゴム、クロロプレンゴ
ム、ブチルゴム、EPDM（エチレンプロピレン共
重合体）、その他の合成ゴムなどでなる断面形状
が方形（第１図のもの）、台形（第２図のもの）
または半円形（第３図のもの）などの棒状基材で
ある。なお該棒状基材１の中心には、圧縮変形時
の変形を吸収するそれぞれの断面形状と同形の芯
孔１ａが形成され筒状構成となつている。そこで
この考案は、上記第１，２図の断面形状が方形、
台形の棒状基材１の上下両面または第３図の断面
形状が半円形の棒状基材１の下面に、例えば織布
またはプラスチツクフイルムなどの伸びない物性
の芯材３を内部にサンドイツチ状に介入した例え
ばアクリル系またはブチルゴム系などの粘着剤層
２を、一体に貼合わせて設け、該粘着剤層２の表
面に剥離紙４を貼付してなるものである。 The embodiments of this invention will be explained in detail with reference to the drawings below. First, 1 is made of natural rubber, chloroprene rubber, butyl rubber, EPDM (ethylene propylene copolymer), and other synthetic rubbers with a rectangular cross-sectional shape (as shown in Figure 1). ), trapezoid (the one in Figure 2)
Alternatively, it is a bar-shaped base material such as a semicircle (as shown in FIG. 3). Note that a core hole 1a having the same cross-sectional shape as each of the rod-shaped base materials 1 to absorb deformation during compression deformation is formed in the center of the rod-shaped base material 1, thereby forming a cylindrical structure. Therefore, this idea has a rectangular cross-sectional shape as shown in Figures 1 and 2 above.
A core material 3 made of non-stretchable material such as woven cloth or plastic film is inserted inside the upper and lower surfaces of the trapezoidal rod-shaped base material 1 or on the lower surface of the rod-shaped base material 1 having a semicircular cross-sectional shape as shown in FIG. 3 in the form of a sandwich. A pressure-sensitive adhesive layer 2 made of, for example, acrylic or butyl rubber is laminated together, and a release paper 4 is pasted on the surface of the pressure-sensitive adhesive layer 2.
（考案の効果）
この考案目地封かん材は、上述のように棒状基
材１の上下両面または下面にだけ粘着剤層２を設
け、剥離紙４を貼付したものであるから、外周全
面または殆んど全面にブチル系粘着剤層を設けた
従来品と違つて、施工時における目地封かん材同
志の接着が防止できて作業が容易となり、作業性
を著しく向上できる優れた効果がある。また棒状
基材１の粘着剤層２に伸びない物性の芯材３を介
入してあるから、この目地封かん材を封かん目地
部に巻き施工する施工時に目地封かん材が引き伸
ばされるのが防がれ、従つて経時収縮して両端末
接合部が次第に開いて封かんが不完全となるおそ
れがない大きな効果がある。(Effect of the invention) As described above, this invented joint sealing material has the adhesive layer 2 provided only on the upper and lower surfaces or the lower surface of the rod-shaped base material 1, and the release paper 4 is pasted, so that Unlike conventional products that have a butyl-based adhesive layer on the entire surface, this product has the excellent effect of preventing joint sealants from adhering to each other during construction, making work easier, and significantly improving workability. In addition, since the core material 3 with non-stretchable properties is interposed in the adhesive layer 2 of the rod-shaped base material 1, the joint sealing material is prevented from being stretched during construction when the joint sealing material is wrapped around the sealed joint. Therefore, there is a great effect that there is no risk of the both end joints gradually opening due to shrinkage over time, resulting in incomplete sealing.
図面はこの考案目地封かん材の実施例を示すも
ので、第１図は断面形状が方形のものの一部の縦
断斜視図、第２図は同台形のものの一部の縦断斜
視図。第３図は同半円形のものの一部の縦断斜視
図である。
１……棒状基材、１ａ……芯孔、２……粘着剤
層、３……芯材、４……剥離紙。
The drawings show examples of the joint sealing material according to the present invention, and FIG. 1 is a longitudinal sectional perspective view of a part of the joint sealing material having a rectangular cross-sectional shape, and FIG. 2 is a vertical sectional perspective view of a part of the same trapezoidal one. FIG. 3 is a longitudinal sectional perspective view of a portion of the same semicircular shape. DESCRIPTION OF SYMBOLS 1... Rod-shaped base material, 1a... Core hole, 2... Adhesive layer, 3... Core material, 4... Release paper.
Claims (1)
は半円形などの棒状基材１の上下両面または下面
に、伸びない物性の芯材３を介入した粘着剤層２
を一体に設け、剥離紙４を貼付してなる目地封か
ん材。 An adhesive layer 2 in which a core material 3 with non-stretch properties is interposed on the upper and lower surfaces or the lower surface of a rod-shaped base material 1 made of synthetic rubber or the like and having a rectangular, trapezoidal, or semicircular cross-sectional shape.
A joint sealing material formed by integrally providing a release paper 4 and pasting a release paper 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15112887U JPH0529253Y2 (en) | 1987-10-01 | 1987-10-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15112887U JPH0529253Y2 (en) | 1987-10-01 | 1987-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6457144U JPS6457144U (en) | 1989-04-10 |
| JPH0529253Y2 true JPH0529253Y2 (en) | 1993-07-27 |
Family
ID=31424895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15112887U Expired - Lifetime JPH0529253Y2 (en) | 1987-10-01 | 1987-10-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0529253Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0743245Y2 (en) * | 1990-11-30 | 1995-10-09 | 前田製管株式会社 | Box culvert joint structure |
-
1987
- 1987-10-01 JP JP15112887U patent/JPH0529253Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6457144U (en) | 1989-04-10 |
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