JPH07113399A - 防水シート施工法 - Google Patents

防水シート施工法

Info

Publication number
JPH07113399A
JPH07113399A JP5259750A JP25975093A JPH07113399A JP H07113399 A JPH07113399 A JP H07113399A JP 5259750 A JP5259750 A JP 5259750A JP 25975093 A JP25975093 A JP 25975093A JP H07113399 A JPH07113399 A JP H07113399A
Authority
JP
Japan
Prior art keywords
waterproof sheet
overlapped
welding machine
welding
sheets
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.)
Granted
Application number
JP5259750A
Other languages
English (en)
Other versions
JPH081119B2 (ja
Inventor
Yoji Ogawa
洋二 小川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KFC Ltd
Original Assignee
KFC Ltd
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Filing date
Publication date
Application filed by KFC Ltd filed Critical KFC Ltd
Priority to JP5259750A priority Critical patent/JPH081119B2/ja
Publication of JPH07113399A publication Critical patent/JPH07113399A/ja
Publication of JPH081119B2 publication Critical patent/JPH081119B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/865—Independently movable welding apparatus, e.g. on wheels
    • B29C66/8652—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling
    • B29C66/86521—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling
    • B29C66/86523—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling the traction being made on the seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7318—Permeability to gases or liquids
    • B29C66/73185—Permeability to gases or liquids non-permeable
    • B29C66/73187—Permeability to gases or liquids non-permeable to liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/005—Tarpaulins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • B29L2031/108—Roofs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

(57)【要約】 【目的】熱融着性防水シートを屋根瓦状にオーバラップ
させて施工個所に張り、そのオーバラップ部を溶接機の
該部長さ方向への移動の下、溶接機の熱ごてによる加
熱、熱ごての後に隣接するピンチローラによる挟圧で溶
着、接合する防水シート施工において、隅部を除く防水
シートの縁の重なりに即したピンチローラの挟圧強さ
で、防水シートの重なった隅部に検査穴を確実に形成す
るようにする。 【構成】上記様式の防水シート施工において、防水シー
トの重なった隅部に対するピンチローラ１２の少なくと
も前後についてのニップ領域に相当する範囲に亘り同ロ
ーラの中間部凹所１２１中を同ローラ対向間で前後に延
在するリード１５を、防水シートの加熱溶融されるオー
バラップ部中に介在させて、熱ごて１１・ピンチローラ
１２による該部の溶着、接合を行うことを特徴としてい
る。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、トンネル、立坑、水
路、ごみ廃棄場等の防水シート施工法、詳しくは熱融着
性の防水シートを屋根瓦状にオーバラップさせて施工個
所に張り、そのオーバラップ部を溶接機の該部長さ方向
への移動の下、溶接機の熱ごてによる加熱、熱ごての後
に隣接するピンチローラによる挟圧で溶着、接合する防
水シート施工法に関する。
【０００２】この種様式の防水シート施工では、防水シ
ートのオーバラップ部を溶着するとき、同部の中央領域
に長さ方向に連続する非溶着部による検査穴をつくるこ
とが行われる。防水シートの施工が或るスパンを終える
と、検査穴の端を閉塞し、該検査穴に圧縮空気を入れ
て、或る時間それを保持し、その空気の圧力低下が所定
値を超えなければ施工した防水シートの継目部が水密性
ありとすると定めている。
【０００３】
【従来の技術】従来、前示タイプの防水シート施工にお
いて、検査穴を形成するには、溶接機の熱ごてを溶接機
の移動方向沿いに中央領域が空隙になった形とし、それ
によって防水シートのオーバラップ部に非溶着部を残す
ようにしている。
【０００４】これによると、隣接する防水シートの重な
った隅部が旨く非溶着部となって残らずに閉塞してしま
うことが多く起る。防水シートの隅部の重なりは四枚或
いは三枚、隅部を除く縁の重なりは二枚であり、後者重
なりのシール性を得るのに即した溶着のためのピンチロ
ーラの挟圧は、前者重なりの溶着、挟圧には圧力が強過
ぎて、ピンチローラが熱ごてと同様に中央部が凹所とな
っているものの、熱ごて中央部の空所に相当する部位ま
で接着が波及する傾向が強い。四枚または三枚重ねの隅
部に適した挟圧では、二枚重ねの縁の挟圧には圧力不足
で、所要のシール性が得られない。
【０００５】
【発明が解消しようとする課題】本発明の課題は、防水
シートの隅部を除く縁の重なりに即したピンチローラの
挟圧強さで、防水シートの重なった隅部に検査穴を確実
に形成することを可能にするにある。
【０００６】
【課題を解決するための手段】上記課題を解決するため
本発明は、熱溶着性の防水シートを屋根瓦状にオーバラ
ップさせて施工個所に張り、そのオーバラップ部を溶接
機の該部長さ方向への移動の下、溶接機の熱ごてによる
加熱、該熱ごての後に隣接するピンローラによる挟圧で
溶着、接合する防水シート施工法において、防水シート
の重なった隅部に対するピンチローラの少なくとも前後
についてのニップ領域に相当する範囲に亘りピンチロー
ラの中間部凹所中を該ローラの対向間で前後に延在する
リードを、防水シートの加熱溶融されるオーバラップ部
中に介在させて、該部の前記仕様による溶着、接合を行
うことを特徴としている。
【０００７】
【実施例】次に、本発明工法の実施に使用する溶接機の
一例を示す図面を参照して、本発明を説明する。
【０００８】本発明の防水シート施工法の実施に用いる
溶接機１は、防水シートＳのオーバラップ部中に介在す
る熱ごて１１により防水シートＳの所要部位を熱し、該
熱ごて１１の後側に近接するピンチローラ１２，１２に
よる挟圧で防水シートＳのオーバラップ部を溶着するよ
うになっている。溶接機１には、所要の方向（図で左
方）へ自力移動するタイプのものを充てればよい。その
自力移動は、把つ手１３での溶接機１の手持ちの下、モ
ータ駆動による車輪１４の作動で移動する形式を採用で
きる。溶接機１の熱ごて１１は電力発熱型のものを使用
できる。
【０００９】また溶接機１は、溶着される二枚の防水シ
ートＳのオーバラップ部をピンチローラ１２，１２に挟
圧すべく、下側に重なる防水シートＳ１端部及び上側に
重なる防水シートＳ２端部を左右入れ違い状（図２参
照）に差し入れ得るフレーム構造になっている。
【００１０】溶接機１にはリード１５が付設されてお
り、該リード１５は防水シートＳの後述する重なった隅
部に対するピンチローラ１２，１２の少なくとも前後に
ついてのニップ領域に相当する（一般的には該ロール１
２の直径より少し長い）範囲に亘りピンチローラ１２，
１２の中間部凹所１２１中を該ローラの対向間で前後に
延在されて備えられている。リード１５は熱ごて１１の
空隙１１１になった中央領域後部に片持ち的に取り付け
ればよい。
【００１１】施工対象、例えばトンネル地山の一次覆工
面である吹付けコンクリート（図示せず）面に張った不
織布（図示せず）の上から熱溶着性の防水シートＳを
経、緯方向について屋根瓦状にオーバラップさせて張
る。その際、防水シートＳの隅部につき、オーバラップ
が二枚の相互に重なる防水シート端部と他の一枚の防水
シート端部との三枚重ねとなるよう、防水シート１を図
３に示す如くずらせてもよいし、図４に示す如くオーバ
ラップが四枚重ねとなるようにしてもよい。
【００１２】防水シートＳの経、緯のオーバラップ部を
溶接機１により該部の方向沿いに帯状に溶着する。その
溶着それ自体は、防水シート隅部についてを含め、従来
と変りがない。
【００１３】リード１５はピンチローラ１２，１２の対
向間で該ローラの中間凹所１２１に備えられているので
ピンチローラ１２，１２間に防水シートＳ，Ｓのオーバ
ラップ部を差し入れると、該オーバラップ部中に介在す
ることになる。このため、溶接機１の所要方向への移動
で、熱ごて１１による防水シートオーバラップ部の加熱
溶融に続き、ピンチローラ１２，１２が同部を挟圧する
とき、リード１５がこれに対応する部位の防水シートオ
ーバラップ部を溶着不活性にする。その不活性化部位は
リード１５の延在範囲、即ち防水シートＳの重なった隅
部に対するピンチローラ１２，１２の少なくとも前後に
ついてのニップ領域に相当する範囲に亘る。
【００１４】こうして本発明によれば、防水シートの二
枚重ねのオーバラップ部に即応するピンチローラの挟圧
強さで以て、三枚或いは四枚重ねの隅部を挟圧しても、
隅部に残すべき非溶着部による検査穴を閉塞することが
なくなる。
【００１５】即ち、溶接機１に備えたリード１５の働き
で、防水シートオーバラップ部の中央領域に該部長さ方
向に連続する非溶着部による検査穴が確実に形成され
る。
【００１６】
【発明の効果】以上に述べたところから明らかなよう
に、冒頭に述べた様式の防水シート施工において、本発
明は防水シートの隅部を除く縁の重なりに即したピンチ
ローラの挟圧強さで、防水シートの重なった隅部に検査
穴を確実に形成することを奏功する。
【図面の簡単な説明】
【図１】図１（Ａ）は本発明で使用する溶接機の熱ご
て、ピンチローラ及びリードの一態様例を組立てた状態
で示す斜視図、図１（Ｂ）は同熱ごて及びリードの分離
斜視図である。
【図２】本発明で使用する溶接機の全体概要を示す斜視
図である。
【図３】防水シートの三枚重ね隅部の正面図を示す。
【図４】防水シートの四枚重ね隅部の正面図を示す。

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】熱溶着性の防水シートを屋根瓦状にオーバ
    ラップさせて施工個所に張り、そのオーバラップ部を溶
    接機の該部長さ方向への移動の下、溶接機の熱ごてによ
    る加熱、該熱ごての後に隣接するピンチローラによる挟
    圧で溶着、接合する防水シート施工法において、防水シ
    ートの重なった隅部に対するピンチローラの少なくとも
    前後についてのニップ領域に担当する範囲に亘りピンチ
    ローラの中間部凹所中を該ローラの対向間で前後に延在
    するリードを、防水シートの加熱溶融されるオーバラッ
    プ部中に介在させて、該部の前記仕様による溶着、接合
    を行うことを特徴とする防水シート施工法。
JP5259750A 1993-10-18 1993-10-18 防水シート施工法 Expired - Lifetime JPH081119B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5259750A JPH081119B2 (ja) 1993-10-18 1993-10-18 防水シート施工法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5259750A JPH081119B2 (ja) 1993-10-18 1993-10-18 防水シート施工法

Publications (2)

Publication Number Publication Date
JPH07113399A true JPH07113399A (ja) 1995-05-02
JPH081119B2 JPH081119B2 (ja) 1996-01-10

Family

ID=17338437

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPH081119B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015123645A (ja) * 2013-12-26 2015-07-06 藤森工業株式会社 シート溶着装置及びこれに用いる溶着用加圧ローラ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016200398B2 (en) * 2016-01-22 2017-08-31 System Stormseal Pty Ltd Heat Shrink Covering of Built Structures and Method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146419A (en) * 1976-01-30 1979-03-27 Sarna Kunststoff Ag Welding device for welding plastic strips
JPS61282A (ja) * 1984-06-12 1986-01-06 Fujimori Kogyo Kk 防水シ−トの接続方法
JPH0339599A (ja) * 1989-07-06 1991-02-20 K F C:Kk 防水シート敷設施工法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146419A (en) * 1976-01-30 1979-03-27 Sarna Kunststoff Ag Welding device for welding plastic strips
JPS61282A (ja) * 1984-06-12 1986-01-06 Fujimori Kogyo Kk 防水シ−トの接続方法
JPH0339599A (ja) * 1989-07-06 1991-02-20 K F C:Kk 防水シート敷設施工法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015123645A (ja) * 2013-12-26 2015-07-06 藤森工業株式会社 シート溶着装置及びこれに用いる溶着用加圧ローラ

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