JPS6325144Y2 - - Google Patents
Info
- Publication number
- JPS6325144Y2 JPS6325144Y2 JP18721584U JP18721584U JPS6325144Y2 JP S6325144 Y2 JPS6325144 Y2 JP S6325144Y2 JP 18721584 U JP18721584 U JP 18721584U JP 18721584 U JP18721584 U JP 18721584U JP S6325144 Y2 JPS6325144 Y2 JP S6325144Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- fitting
- sheet
- shrinkable
- branch
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000013521 mastic Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、熱収縮性シートに係り、特にパイプ
ライン或いはケーブルの接続部等を被覆するため
用いられる改良された熱収縮性シートに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat-shrinkable sheet, and particularly to an improved heat-shrinkable sheet used for covering connections of pipelines or cables.
従来からゴム、プラスチツクなどの高分子材料
を素材とした熱収縮性チユーブ又はシートが熱に
よる復元性を利用して、石油、ガス、水道等のパ
イプライン或いはケーブルの接続部の防水、保護
に使用されている。 Conventionally, heat-shrinkable tubes or sheets made of polymeric materials such as rubber and plastic have been used to waterproof and protect oil, gas, water, etc. pipelines and cable connections by taking advantage of their resilience due to heat. has been done.
このような場合、使用時に両側縁部を接合して
チユーブ状となし得るシート体であれば、被着体
への装着が容易であり、特に接続が既に完了して
いる場合、或いは被覆材の補修を必要とする場合
等既設物には、このようなシート状のものでない
と使用できない。 In such cases, a sheet body that can be formed into a tube shape by joining both side edges during use is easy to attach to the adherend, especially when the connection has already been completed or when the coating material is This kind of sheet-like material cannot be used for existing structures that require repair.
そこで従来からシートの少くとも１端縁部を上
下２枚に分岐させた分岐部片を互に嵌合させて接
合部を形成する如き端部分岐型の熱収縮性シート
などが種々提案されている。 Therefore, various end-branched heat-shrinkable sheets have been proposed, in which at least one edge of the sheet is branched into two upper and lower parts, and these branched pieces are fitted together to form a joint. There is.
しかしながら、このような従来の端部分岐型の
熱収縮性シートを用いて形成した接合部の近傍
は、一般にシート本体部と同様に収縮率が大きい
ため、加熱収縮時の収縮応力により噛合せ嵌合さ
せて形成した接合部が離脱したり、熱軟化による
機械的強度の低下のため接合部の保持が充分にで
きない等の問題があつた。このため、接合部近傍
を低収縮率化する試みもなされているが、熱軟化
時の強度不足の基本的な解決にはならず、補助部
材或いは締付具等を使用し接合部を保持する必要
があつた。 However, the vicinity of the joint formed using such a conventional end-branched heat-shrinkable sheet generally has a high shrinkage rate similar to the main body of the sheet, so the shrinkage stress during heat shrinkage causes the meshing and fitting to occur. There were problems such as the bonded portion formed by the two pieces coming apart, and the bonded portion being unable to be held sufficiently due to a decrease in mechanical strength due to thermal softening. For this reason, attempts have been made to reduce the shrinkage rate near the joint, but this does not fundamentally solve the lack of strength during thermal softening, and it is necessary to use auxiliary members or fasteners to hold the joint. The need arose.
本考案の目的は、このような従来の端部分岐型
熱収縮性シートの欠点を解消するためになされた
ものであつて、予め特別に補強した両端縁部が上
下２枚に分岐されて嵌合凹部が形成された構造と
することにより、加熱収縮時の機械的強度低下を
防止し、強固な接合により容易に密閉することの
できる熱収縮性シートを提供することにある。 The purpose of the present invention was to eliminate the drawbacks of the conventional heat-shrinkable sheet with branched ends. It is an object of the present invention to provide a heat-shrinkable sheet having a structure in which mating recesses are formed, which prevents a decrease in mechanical strength during heat shrinkage, and which can be easily sealed by strong bonding.
本考案は、実施例が図面にもみられるように、
熱収縮性高分子材料からなるシート１の両端縁の
所望長が網目状補強体５でそれぞれ補強された上
側補強分岐部片２，３と無補強分岐部片４との上
下２枚に分岐されて嵌合凹部が形成された熱収縮
性シートであつて、一方の端縁部の片側補強分岐
部片２には所望個数の嵌入係止孔６が穿設され、
他端縁部３に形成した分岐部の上側補強分岐部片
３には前記他端縁の分岐部２に設けた嵌入係止孔
６に対応する所望個数の嵌入係止突状部７を具備
させたことを特徴とする熱収縮性シートで、所望
する接続部に巻付け被覆し嵌入の際、前記嵌入係
止突状部７を前記嵌入係止孔６の外側から内側に
嵌入折返し固定した後、加熱せしめて係止接合部
１０を形成するようにしたものである。 As the embodiments of the present invention can be seen in the drawings,
A desired length of both end edges of a sheet 1 made of a heat-shrinkable polymeric material is branched into two upper and lower reinforcing branch pieces 2 and 3, each reinforced with a mesh-like reinforcing body 5, and an unreinforced branch piece 4. It is a heat-shrinkable sheet in which fitting recesses are formed, and a desired number of fitting locking holes 6 are bored in one side reinforced branch piece 2 at one edge,
The upper reinforcing branch piece 3 of the branch part formed on the other end edge 3 is provided with a desired number of fitting locking protrusions 7 corresponding to the fitting locking holes 6 provided in the branch part 2 of the other end edge. A heat-shrinkable sheet characterized by a heat-shrinkable sheet is wrapped around a desired connection portion to cover it, and when fitting, the fitting locking protrusion 7 is inserted and fixed from the outside of the fitting locking hole 6 to the inside. Thereafter, the locking joint portion 10 is formed by heating.
以下、図面に示す実施例にてさらに説明する。 The present invention will be further explained below with reference to embodiments shown in the drawings.
第１図に示す如き分岐嵌合部２，３，４を各々
有する熱収縮性シート１の両端縁部を、第２図に
示す如き網目状補強体５を用いて、厚みの略々中
間に位置するように、内在補強した片側補強分岐
部片２，３と無補強分岐部片４に分岐する。この
熱収縮性シート１は、例えば、同じ程度の厚みの
熱収縮性高分子材料シート１を３層同時に加熱圧
着する際に、上中層間の各端縁部に網目状補強体
５を挿入し、中下層間にセパレータ（図示せず）
を挿入して成形することにより得られる。又しか
し他の方法で成形してもよい。熱収縮性高分子材
料からなる基材はポリオレフイン等の架橋により
熱収縮復元性が付与可能なもので通常使用される
ものでよく、熱圧着の際、網目状補強体５の網目
を通して２層間で互いに流動し、熱融着する程度
に架橋されていればよく、網目状補強体５の網目
も流動融着可能な程度の大きさであればよい。 Both ends of a heat-shrinkable sheet 1 having branch fitting parts 2, 3, and 4 as shown in FIG. It branches into one-sided reinforced branch pieces 2 and 3 which are internally reinforced and a non-reinforced branch piece 4 so as to be located at the same position. This heat-shrinkable sheet 1 is produced by, for example, inserting a mesh reinforcing body 5 at each edge between the upper and middle layers when three layers of the heat-shrinkable polymer material sheet 1 having the same thickness are simultaneously heat-pressed. , separator between middle and lower layers (not shown)
It is obtained by inserting and molding. However, it may also be shaped using other methods. The base material made of a heat-shrinkable polymer material may be one that can be given heat-shrinkable recovery properties by crosslinking, such as polyolefin, and is commonly used. It is sufficient that they are cross-linked to such an extent that they flow together and are thermally fused together, and the mesh of the mesh-like reinforcing body 5 may also be of a size that allows fluid fusion bonding.
網目状補強体５は、ステンレス鋼、黄銅、アル
ミニウム等の金属、加熱収縮温度で軟化等により
強度が低下しない強化プラスチツク等の薄板を網
目状に打抜いたもの、或いは上記金属類の単線、
撚線状のもの、ガラスフアイバー等無機質の撚線
状のものを網目状に編んだものでもよい。この網
目状補強体の熱収縮性シートの分岐部への挿入長
さは分岐部の長さを若干越えた程度が好ましい。
このようにして補強された熱収縮性シート１は、
第３図に示す如く一端縁部の上側補強分岐部片２
に嵌入係止孔６が、他端縁部の上側補強分岐部片
３に嵌入係止孔６に嵌入可能で折返せる寸法の嵌
入係止突状部７を各々所要数設ける。 The mesh reinforcing body 5 is made of a metal such as stainless steel, brass, or aluminum, or a thin plate of reinforced plastic whose strength does not decrease due to softening at heat shrinkage temperature, or a single wire of the above-mentioned metals.
It may be in the form of twisted wires or inorganic twisted wires such as glass fibers knitted into a mesh. It is preferable that the insertion length of the heat-shrinkable sheet of the mesh-like reinforcing body into the branch part slightly exceeds the length of the branch part.
The heat-shrinkable sheet 1 reinforced in this way is
Upper reinforcing branch piece 2 at one end edge as shown in FIG.
A required number of fitting locking protrusions 7 are provided on the upper reinforcing branch piece 3 on the other end edge, each having a size that can be fitted into the fitting locking hole 6 and can be folded back.
第４図及び５図はシートの端縁部に設けた重ね
合せた無補強分岐部片４上に嵌入係止孔６に他端
縁部に設けた嵌入係止突状部７を外側から内側に
嵌入折返し、固定した断面図を示す。この場合、
被着体１１と密着し、防水を保持するためにマス
チツク８を無補強分岐部片４を含めた熱収縮シー
トの内側全面に塗布し、さらに無補強分岐部片４
と上側分岐部片２，３とのＹ分岐部内面には、接
着剤９を塗布しておいてもよい。マスチツク８と
しては、例えば、ブチルゴム系混和物、接着剤９
としては、加熱収縮温度以下で溶融接着する、例
えば、エチレン酢酸ビニル共重合体、接着性ポリ
オレフイン樹脂等がある。 Figures 4 and 5 show a fitting locking protrusion 7 provided on the other end edge of the sheet into a fitting locking hole 6 on the overlapped non-reinforced branch piece 4 provided on the edge of the sheet from the outside to the inside. A cross-sectional view of the product folded back and fixed is shown. in this case,
Mastic 8 is applied to the entire inner surface of the heat-shrinkable sheet, including the unreinforced branch pieces 4, in order to adhere closely to the adherend 11 and maintain waterproofness.
An adhesive 9 may be applied to the inner surfaces of the Y branch portions of the upper branch pieces 2 and 3. As mastic 8, for example, butyl rubber mixture, adhesive 9
Examples of the adhesive include ethylene-vinyl acetate copolymer, adhesive polyolefin resin, etc., which are melt-bonded at a temperature below the heating shrinkage temperature.
次に、加熱収縮の方法は、通常使用されるガス
バーナーでよく、先ず、第４図の嵌入係止孔６と
嵌入係止突状部７とからなる嵌合部を加熱するこ
とにより、第５図の如く重なり部及び段差部が接
着剤９、マスチツク８により充填され、密着する
と共に、嵌合部が網目状補強体５で補強されてい
るため、加熱による寸法変化が殆んどなく、しか
も嵌入係止突状部７が折返されていることもあ
り、接合部の離脱のない強固な係止接合部１０が
得られ、次いで順次加熱収縮させることにより、
被着体１１に熱収縮性シート１を容易に密着させ
る。 Next, the method of heating and shrinking may be performed using a commonly used gas burner. As shown in Fig. 5, the overlapping portions and step portions are filled with adhesive 9 and mastic 8 and are in close contact, and the fitting portion is reinforced with mesh reinforcement 5, so there is almost no dimensional change due to heating. Moreover, since the fitting and locking protrusion 7 is folded back, a strong locking joint 10 that does not come off at the joint can be obtained, and then by sequentially heating and shrinking it,
A heat-shrinkable sheet 1 is easily brought into close contact with an adherend 11.
本考案の奏する効果は次の如くである。 The effects of the present invention are as follows.
すなわち、従来、問題となつていた加熱収縮時
の収縮応力による接合部の離脱、熱軟化による機
械的強度の低下のための接合部保持の困難等の欠
点は、本考案の如く、予め補強し機械的強度を付
与した嵌合部により、基本的改善がなされ、接合
のための補助部材、締付具を使用しなくても、容
易に強固な接合部が得られる利点がある。 In other words, the conventional problems such as detachment of joints due to shrinkage stress during heat shrinkage and difficulty in holding joints due to decrease in mechanical strength due to heat softening can be solved by reinforcing the joints in advance as in the present invention. A fundamental improvement is achieved by the fitting portion provided with mechanical strength, and there is an advantage that a strong joint portion can be easily obtained without using auxiliary members or fasteners for joining.
第１図は本考案の一実施例の両端縁部に上下２
枚の分岐部片を設けた熱収縮性シートの断面図で
あり、第２図は本考案の一実施例の上側分岐部に
網目状補強体を内在させた熱収縮シートの正面図
であり、第３図は本考案熱収縮性シートの一実施
例品の斜視説明図であり、第４図は本考案の一実
施例の嵌入係止部の断面説明図であり、さらに、
第５図は本考案の一実施例の加熱収縮後の接合部
の断面説明図である。
１……熱収縮性シート、２，３……上側補強分
岐部片、４……無補強分岐部片、５……網目状補
強体、６……嵌入係止孔、７……嵌入係止突状
部、８……マスチツク、９……接着剤、１０……
係止接合部、１１……被着体。
Figure 1 shows an embodiment of the present invention with two upper and lower parts at both end edges.
FIG. 2 is a cross-sectional view of a heat-shrinkable sheet provided with two branch pieces; FIG. FIG. 3 is a perspective explanatory view of an embodiment of the heat-shrinkable sheet of the present invention, and FIG. 4 is a cross-sectional explanatory view of a fitting locking part of an embodiment of the present invention.
FIG. 5 is an explanatory cross-sectional view of a joint portion after heat shrinkage according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Heat-shrinkable sheet, 2, 3...Upper reinforcing branch piece, 4...Unreinforced branch piece, 5...Mesh reinforcement body, 6...Fitting locking hole, 7...Fitting locking Projecting portion, 8... Mastic, 9... Adhesive, 10...
Locking joint portion, 11...adherent.
Claims (1)
部を網目状補強体でそれぞれ補強され、それぞれ
上下２枚に分岐されて嵌合凹部が形成された端部
分岐型熱収縮性シートであつて一方の端縁部の上
側補強分岐部片２には所望個数の嵌入係止孔６を
穿設し、 他端縁部に形成した分岐部の上側補強分岐部片
３には前記他端縁の分岐部に設けた嵌入係止孔６
に対応する所望個数の嵌入係止突状部７を具備さ
せたことを特徴とする熱収縮性シート。[Claims for Utility Model Registration] Both end edges of a sheet 1 made of a heat-shrinkable polymeric material are each reinforced with a mesh-like reinforcing body, and the end branches are each branched into two upper and lower parts, each of which has a fitting recess formed therein. The upper reinforcing branch piece 2 of the molded heat-shrinkable sheet has a desired number of fitting locking holes 6 formed in the upper reinforcing branch piece 2 at one end edge, and the upper reinforcing branch piece 2 of the branch part formed at the other end edge. 3 has a fitting locking hole 6 provided at the branch part of the other end edge.
A heat-shrinkable sheet characterized in that it is provided with a desired number of fitting and locking protrusions 7 corresponding to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18721584U JPS6325144Y2 (en) | 1984-12-12 | 1984-12-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18721584U JPS6325144Y2 (en) | 1984-12-12 | 1984-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61102522U JPS61102522U (en) | 1986-06-30 |
| JPS6325144Y2 true JPS6325144Y2 (en) | 1988-07-08 |
Family
ID=30744675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18721584U Expired JPS6325144Y2 (en) | 1984-12-12 | 1984-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325144Y2 (en) |
-
1984
- 1984-12-12 JP JP18721584U patent/JPS6325144Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61102522U (en) | 1986-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4920236A (en) | Sealing cable junctions | |
| US4514241A (en) | Reinsulation of pipe joints | |
| JP2001503955A (en) | Wrap type cable closure end seal | |
| JPS6325144Y2 (en) | ||
| KR101635426B1 (en) | Casing for connecting double insulation pipe, method for manufacturing the casing, and method for connecting double insulation pipe using the casing | |
| CA1315140C (en) | Manufacture of bags | |
| JPS6335980Y2 (en) | ||
| JP2951981B2 (en) | Sheet for coating | |
| JPS6241797Y2 (en) | ||
| KR200357476Y1 (en) | connect structure of plastics pipe | |
| KR0126430B1 (en) | Sleeve for tube and cable | |
| JPH038415Y2 (en) | ||
| EP0194040B1 (en) | Pressurized cable junction closure and method for its production | |
| JP2935421B2 (en) | Electrofusion fittings | |
| JP2868092B2 (en) | Electrofusion fittings | |
| JP2545973B2 (en) | Electrofusion fittings | |
| KR200402687Y1 (en) | Device for connecting underground pipes | |
| JP3749062B2 (en) | Thermoplastic tube connection method and connection structure | |
| JPH10185068A (en) | Fixing method of electric fusion coupling | |
| JPS602911Y2 (en) | heat shrinkable covering material | |
| JPS5852968Y2 (en) | heat shrinkable sheet | |
| KR200286290Y1 (en) | A thermal shrinkage sheet | |
| JPS604752Y2 (en) | Heat-shrinkable sheet with protrusions | |
| EP0656677A1 (en) | Multi-layer wraparound heat shrink sleeve | |
| JPS6046310B2 (en) | How to join plastic composite pipes |