JPH081119B2 - Waterproof sheet construction method - Google Patents

Waterproof sheet construction method

Info

Publication number
JPH081119B2
JPH081119B2 JP5259750A JP25975093A JPH081119B2 JP H081119 B2 JPH081119 B2 JP H081119B2 JP 5259750 A JP5259750 A JP 5259750A JP 25975093 A JP25975093 A JP 25975093A JP H081119 B2 JPH081119 B2 JP H081119B2
Authority
JP
Japan
Prior art keywords
waterproof sheet
welding
welding machine
construction method
overlapping
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
Application number
JP5259750A
Other languages
Japanese (ja)
Other versions
JPH07113399A (en
Inventor
洋二 小川
Original Assignee
株式会社ケー・エフ・シー
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社ケー・エフ・シー filed Critical 株式会社ケー・エフ・シー
Priority to JP5259750A priority Critical patent/JPH081119B2/en
Publication of JPH07113399A publication Critical patent/JPH07113399A/en
Publication of JPH081119B2 publication Critical patent/JPH081119B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[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。BACKGROUND OF THE INVENTION The present invention relates to a waterproof sheet construction method for tunnels, vertical shafts, waterways, garbage disposal sites, etc. The present invention relates to a waterproof sheet construction method in which the overlapping portion is heated by a hot iron of the welding machine while being moved in the length direction of the welding machine, and is welded and joined by pinching pressure by an adjacent pinch roller after the hot iron.

【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。In this type of waterproof sheet construction, when welding the overlapping portion of the waterproof sheet, an inspection hole is formed in the central region of the waterproof sheet by continuous non-welded portions in the lengthwise direction. When the construction of the waterproof sheet finishes a certain span, the end of the inspection hole is closed, compressed air is put into the inspection hole and kept for a certain time, and the pressure drop of the air must not exceed a predetermined value. It is stipulated that the joints of the constructed waterproof sheet are watertight.

【０００３】[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。2. Description of the Related Art Conventionally, in the above-mentioned type of waterproof sheet construction, in order to form an inspection hole, the hot iron of the welding machine is formed into a void in the central region along the moving direction of the welding machine, The non-welded part is left in the overlapping part of the waterproof sheet.

【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。According to this, the overlapping corners of the adjoining waterproof sheets often become non-welded portions and are not completely left to be blocked. There are four or three overlapping corners of the waterproof sheet, and two overlapping edges excluding the corners.The pinch pressure of the pinch rollers for welding is the same as that of the latter, in order to obtain sealing performance. The pressure is too strong for overlapping welding and pinching, and the pinch roller has a recess in the center like a hot iron, but the adhesion spreads to the area corresponding to the void in the center of the hot iron. There is a strong tendency to With a sandwiching pressure suitable for the corners of four or three sheets, the required sealing performance cannot be obtained due to insufficient pressure for sandwiching the edges of two sheets.

【０００５】[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。SUMMARY OF THE INVENTION An object of the present invention is to reliably form an inspection hole in an overlapping corner portion of a waterproof sheet by the pinching pressure of a pinch roller that matches the overlap of edges of the waterproof sheet excluding the corner portion. It is possible to do.

【０００６】[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。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a roof tile-like overlap of a heat-welding waterproof sheet, which is attached to a construction site, and the overlap portion is the length of the welding machine. In a waterproof sheet construction method in which heating is performed by a hot iron of a welding machine, welding is performed by pinching pressure by an adjacent pin roller after the hot iron, and joining is performed under movement in the direction, A lead extending back and forth in the middle recess of the pinch roller across at least a range corresponding to the nip region in the front and back is provided in the overlap portion to be heated and melted of the waterproof sheet. It is characterized in that welding and joining are performed according to the specifications of the portion.

【０００７】[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。The present invention will now be described with reference to the drawings showing an example of a welding machine used for carrying out the method of the present invention.

【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。The welding machine 1 used for carrying out the waterproof sheet construction method of the present invention heats a required portion of the waterproof sheet S by the hot iron 11 interposed in the overlapping portion of the waterproof sheet S, and the hot iron 11 The overlap portion of the waterproof sheet S is welded by the pinching pressure of the pinch rollers 12, 12 which are close to the rear side. The welding machine 1 may be of a type that moves by itself in a desired direction (left in the figure). As for the self-moving movement, it is possible to adopt a type in which the welding machine 1 is held by the grip 13 and moved by the operation of the wheels 14 driven by a motor. As the hot iron 11 of the welding machine 1, a power heating type can be used.

【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。In addition, the welding machine 1 has an end portion of the waterproof sheet S1 that overlaps the lower side and an end portion of the waterproof sheet S2 that overlaps the upper side so that the overlap portions of the two waterproof sheets S to be welded are pinched by the pinch rollers 12 and 12. It has a frame structure that allows the parts to be inserted in the left-right direction (see FIG. 2).

【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。A lead 15 is attached to the welding machine 1, and the lead 15 corresponds to a nip region at least in front of and behind the pinch rollers 12, 12 with respect to overlapping corners of the waterproof sheet S, which will be described later. Is the roll 1
2 is slightly longer than the diameter of 2) pinch roller 12,
It is provided so as to extend in the front and rear direction in the middle recess 121 of the twelve between the facing rollers. The lead 15 may be attached in a cantilever manner to the rear portion of the central region of the hot iron 11 which is the void 111.

【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。In the latitudinal direction, through the heat-welding waterproof sheet S on the construction object, for example, the non-woven fabric (not shown) stretched on the shotcrete (not shown) surface which is the primary lining surface of the tunnel ground. The roof tiles are overlapped and stretched. At that time, the waterproof sheet 1 is shown in FIG. 3 in such a manner that, at each corner of the waterproof sheet S, the overlap is a three-layered structure including two overlapping waterproof sheet end portions and another one waterproof sheet end portion. It may be displaced as shown, or may be four overlaps as shown in FIG.

【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。The overlap portion of the warp and weft of the waterproof sheet S is welded in a strip shape along the direction of the portion by the welding machine 1. The welding itself, including the corners of the waterproof sheet, is the same as before.

【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。Since the lead 15 is provided in the intermediate recess 121 of the pinch rollers 12 and 12 facing each other, when the overlap portions of the waterproof sheets S and S are inserted between the pinch rollers 12 and 12, the lead 15 is It will be interposed in the overlap portion. Therefore, when the welding machine 1 is moved in the required direction and the pinch rollers 12 and 12 pinch the heating sheet 11 by heating and melting the waterproof sheet overlap portion, the lead 15 corresponds thereto. Weld the inert parts of the waterproof sheet overlap. The inactivated portion extends over the extending range of the lead 15, that is, the range corresponding to at least the front and rear nip regions of the pinch rollers 12, 12 with respect to the overlapping corners of the waterproof sheet S.

【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。In this way, according to the present invention, the pinching strength of the pinch roller which immediately responds to the overlapped portion of the two-layered waterproof sheet, even if the corner portion of the three- or four-layered sheet is pinched,
The inspection hole due to the non-welded portion that should be left in the corner is not blocked.

【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。That is, the function of the lead 15 provided in the welding machine 1 ensures that the inspection hole is formed in the central region of the waterproof sheet overlap portion by the non-welded portion continuous in the lengthwise direction of the portion.

【００１６】[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。As is clear from the above description, in the construction of the waterproof sheet of the type described at the beginning, the present invention is based on the pinch roller pinching strength in conformity with the overlapping edges of the waterproof sheet excluding the corners. , It is effective to surely form the inspection holes in the overlapping corners of the waterproof sheet.

【図面の簡単な説明】[Brief description of drawings]

【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。FIG. 1 (A) is a perspective view showing a hot iron of a welding machine used in the present invention, an example of one embodiment of a pinch roller and a lead being assembled, and FIG. 1 (B) is the same hot iron and It is a separation perspective view of a lead.

【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。FIG. 2 is a perspective view showing an overall outline of a welding machine used in the present invention.

【図３】防水シートの三枚重ね隅部の正面図を示す。FIG. 3 shows a front view of three corners of a waterproof sheet.

【図４】防水シートの四枚重ね隅部の正面図を示す。FIG. 4 shows a front view of four corners of a waterproof sheet.

Claims (1)

【特許請求の範囲】[Claims] 【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。1. A heat-welding waterproof sheet is overlapped in the shape of a roof tile and stretched over a construction site, and the overlapped portion is moved by the hot iron of the welding machine while the welding machine is moved in the length direction. In a waterproof sheet construction method in which heating, welding and welding are performed by pinching rollers adjacent to each other after heating the iron, a pinch over a range in charge of at least a front and rear nip area of the pinch roller with respect to overlapping corners of the waterproof sheet. A lead extending back and forth in the recess of the intermediate portion of the roller between the opposing rollers is interposed in the overlap portion of the waterproof sheet that is heated and melted, and the welding and joining of the portion according to the above specifications are performed. Waterproof sheet construction method characterized by.
JP5259750A 1993-10-18 1993-10-18 Waterproof sheet construction method Expired - Lifetime JPH081119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5259750A JPH081119B2 (en) 1993-10-18 1993-10-18 Waterproof sheet construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5259750A JPH081119B2 (en) 1993-10-18 1993-10-18 Waterproof sheet construction method

Publications (2)

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

Family

ID=17338437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5259750A Expired - Lifetime JPH081119B2 (en) 1993-10-18 1993-10-18 Waterproof sheet construction method

Country Status (1)

Country Link
JP (1) JPH081119B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10858834B2 (en) * 2016-01-22 2020-12-08 System Stormseal Pty Ltd Heat shrink covering of built structures and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6392511B2 (en) * 2013-12-26 2018-09-19 藤森工業株式会社 Sheet welding apparatus and welding pressure roller used therefor

Family Cites Families (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 (en) * 1984-06-12 1986-01-06 Fujimori Kogyo Kk Method for joining waterproof sheet
JPH0772479B2 (en) * 1989-07-06 1995-08-02 株式会社ケー・エフ・シー Waterproof sheet laying construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10858834B2 (en) * 2016-01-22 2020-12-08 System Stormseal Pty Ltd Heat shrink covering of built structures and method

Also Published As

Publication number Publication date
JPH07113399A (en) 1995-05-02

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