JPH04339999A - Waterproof sheet - Google Patents
Waterproof sheetInfo
- Publication number
- JPH04339999A JPH04339999A JP3141144A JP14114491A JPH04339999A JP H04339999 A JPH04339999 A JP H04339999A JP 3141144 A JP3141144 A JP 3141144A JP 14114491 A JP14114491 A JP 14114491A JP H04339999 A JPH04339999 A JP H04339999A
- Authority
- JP
- Japan
- Prior art keywords
- waterproof sheet
- welding
- sheet
- welded
- hot
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 82
- 230000005674 electromagnetic induction Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000005672 electromagnetic field Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 4
- 229910001369 Brass Inorganic materials 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000010951 brass Substances 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000012943 hotmelt Substances 0.000 abstract 5
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B29C66/40—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
- B29C66/45—Joining of substantially the whole surface of the 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
- 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
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
- B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
- B29C65/3608—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
- B29C65/3612—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements comprising fillers
-
- 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
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- 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
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
-
- 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
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of 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
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
- B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
- B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
- B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、例えばトンネル等の被
覆工面に張設される熱溶着性防水シートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-fusible waterproof sheet that is stretched over a covered construction surface, such as a tunnel.
【０００２】0002
【従来の技術】従来、例えば施工中のトンネルにおいて
は、トンネルの内壁面Ｗからの湧出水が作業の障害とな
ることを回避するために、適宜大きさの長方形状に形成
された防水シート１を内壁面（被覆工面）Ｗに沿って張
設してその内面側を防水する。防水シート１は、図６に
示すように、トンネルの内壁面Ｗに取り付けられた熱溶
着ディスク２（図７参照）と、この熱溶着ディスク２に
対向する防水シート防水シート１の裏面に、作業者が一
方の手に持った熱風溶着装置あるいは電熱溶着装置をシ
ートの裏面から当てがい、他方の手で溶着部分を押圧し
ながら双方を同時に熱溶融して溶着することにより張設
されている。また、防水シート１は、互いの端縁を重合
して双方の間の両妻部に熱風溶着装置あるいは電熱溶着
装置を挿入して溶着することにより、互いに連結されて
いる。2. Description of the Related Art Conventionally, for example, in a tunnel under construction, a waterproof sheet 1 is formed into a rectangular shape of an appropriate size in order to prevent water gushing from the inner wall surface W of the tunnel from becoming an obstacle to the work. is stretched along the inner wall surface (covered surface) W to waterproof the inner surface side. As shown in FIG. 6, the waterproof sheet 1 includes a heat-welded disk 2 (see FIG. 7) attached to the inner wall surface W of the tunnel, and a workpiece on the back side of the waterproof sheet 1 facing the heat-welded disk 2. The sheet is stretched by applying a hot air welding device or an electric heat welding device held in one hand to the back side of the sheet, and pressing the welded portion with the other hand while simultaneously melting and welding both parts. Further, the waterproof sheets 1 are connected to each other by overlapping their edges and welding them by inserting a hot air welding device or an electric heat welding device into the end portions between the two sheets.
【０００３】0003
【発明が解決しようとする課題】しかしながら、前記の
ような防水シート１の場合、以下のような問題が生じて
いた。[Problems to be Solved by the Invention] However, in the case of the waterproof sheet 1 as described above, the following problems have occurred.
【０００４】すなわち、防水シート１を熱溶着ディスク
２へ溶着する際には防水シート１を溶着位置までめくり
上げて作業を行なう必要があるほか、作業者の両手の届
く範囲で作業を行なう必要が生じて作業性に不満があっ
た。同時に、熱溶着ディスク２への溶着の度に防水シー
ト１の形状を正して位置決めを行なう必要があるため作
業能率に不満があった。加えて、内壁面Ｗと防水シート
１の間には、内壁面Ｗと双方の３の間に挿入された装置
の厚み分の空隙が生じ、内壁面Ｗにコンクリート打設す
る際に不都合が生じるといった問題が生じていた。That is, when welding the waterproof sheet 1 to the heat welding disk 2, it is necessary to turn up the waterproof sheet 1 to the welding position and to perform the work, it is also necessary to perform the work within the reach of both hands of the operator. This caused dissatisfaction with workability. At the same time, it is necessary to correct the shape and position the waterproof sheet 1 each time it is welded to the heat-welding disk 2, resulting in dissatisfaction with work efficiency. In addition, a gap corresponding to the thickness of the device inserted between the inner wall surface W and both 3 is created between the inner wall surface W and the waterproof sheet 1, which causes inconvenience when concrete is poured on the inner wall surface W. Such problems arose.
【０００５】また、防水シート１の張設にあっては、熱
風溶着装置は、防水シート１を溶着する際に溶着すべき
領域を越えて防水シート１に熱風を吹き付けて防水シー
ト１の溶融不要な部分にも溶融を引き起こす場合がある
。一方、電熱溶着装置は、防水シート１の加熱時間等に
熟練を要するため、手戻りを生じる場合があるといった
問題もある。[0005] In addition, when welding the tarpaulin sheet 1, the hot air welding device blows hot air onto the tarpaulin sheet 1 beyond the area to be welded when welding the tarpaulin sheet 1, thereby eliminating the need for melting the tarpaulin sheet 1. It may also cause melting in some parts. On the other hand, the electrothermal welding apparatus requires skill in determining the heating time of the waterproof sheet 1, etc., and therefore there is a problem in that rework may be required.
【０００６】本発明は、前述の課題に鑑みてなされたも
ので、溶着を正確に行なうことができ、かつ張設時に裏
面と被溶着面との間に不要な空隙を生じさせることのな
い防水シートを提供することを目的とするものである。The present invention has been made in view of the above-mentioned problems, and is a waterproofing method that allows accurate welding and does not create unnecessary gaps between the back surface and the surface to be welded during tensioning. The purpose is to provide sheets.
【０００７】[0007]
【課題を解決するための手段】本発明の防水シートでは
、シート裏面に溶着材を付着することにより、被溶着部
に溶着可能に形成され、前記溶着材は、電磁誘導により
発熱作用を起こす導電体又は磁性体で形成された薄膜の
両面に溶着性組成物を被着すること、ならびにシート裏
面に溶着材を付着することにより、被溶着部に溶着可能
に形成され、前記溶着材は、電磁誘導により発熱作用を
起こす導電体又は磁性体の粉体を含有した溶着性組成物
で形成することを特徴とする防水シート。[Means for Solving the Problems] In the waterproof sheet of the present invention, a welding material is attached to the back surface of the sheet so that it can be welded to the welded part, and the welding material is a conductive material that generates heat by electromagnetic induction. By applying a welding composition to both sides of a thin film made of a body or a magnetic material, and by applying a welding material to the back surface of the sheet, the welding material can be welded to the part to be welded. A waterproof sheet characterized by being formed from a weldable composition containing conductive or magnetic powder that generates heat by induction.
【０００８】[0008]
【作用】本発明の防水シートによれば、溶着材内の導電
体または磁性体を検知することにより自身の表面側から
溶着位置を検出して、電磁誘導により表面側からシート
の溶着取り付けを行なうことができる。[Operation] According to the waterproof sheet of the present invention, the welding position is detected from the surface side by detecting the conductive or magnetic material in the welding material, and the sheet is welded and attached from the surface side by electromagnetic induction. be able to.
【０００９】[0009]
【実施例】以下本発明の第１実施例を、図１ないし図３
を参照して説明する。なお、前記図６及び図７と同一の
構成部分には、同一の符号を付し、その説明を簡略化す
る。[Embodiment] The first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
Explain with reference to. Note that the same components as in FIGS. 6 and 7 are given the same reference numerals, and the explanation thereof will be simplified.
【００１０】図中符号１０は、本実施例の防水シートで
ある。図１に示すように、防水シート１０は、長方形幕
状の防水性を有する防水シート本体１１と、防水シート
本体１１の施工方向後方（図中右側）の端縁に沿ってテ
ープ状の溶着材１２をその裏面に貼着して成る第１の重
ね部１３と、この第１の重ね部１３に対して防水シート
本体１１の反対側の端縁に沿って形成された第２の重ね
部１４とで構成されている。トンネル内の内壁面Ｗにお
いて、防水シート１０は、内壁面Ｗに取り付けられた溶
着ディスク２に固定され、かつ互いに端部がラップする
ように張設されることにより防水幕Ｔを形成している。Reference numeral 10 in the figure indicates the waterproof sheet of this embodiment. As shown in FIG. 1, the waterproof sheet 10 includes a rectangular curtain-shaped waterproof sheet main body 11 and a tape-shaped welding material along the rear edge of the waterproof sheet main body 11 in the construction direction (right side in the figure). 12 attached to the back surface thereof, and a second overlapped portion 14 formed along the opposite edge of the waterproof sheet body 11 with respect to the first overlapped portion 13. It is made up of. On the inner wall surface W in the tunnel, the waterproof sheet 10 is fixed to a welding disk 2 attached to the inner wall surface W, and is stretched so that the ends overlap each other, thereby forming a waterproof curtain T. .
【００１１】溶着材１２は、鉄、アルミニウム、銅、ス
テンレススチール、真鍮、強磁性粉（導電体または磁性
体）からなる合金を電磁誘導により発熱可能なフィルム
状の発熱層（薄膜）１２ａに形成し、図２及び図３に示
すように、この発熱層１２ａの両面に防水シート１と防
水シート１または溶着ディスク２に熱溶着可能な樹脂（
熱溶着成組成物）１２ｂを被着して形成されている。The welding material 12 is an alloy made of iron, aluminum, copper, stainless steel, brass, and ferromagnetic powder (conductor or magnetic material) formed into a film-like heat generating layer (thin film) 12a that can generate heat by electromagnetic induction. As shown in FIGS. 2 and 3, a waterproof sheet 1 and a resin (which can be thermally welded to the waterproof sheet 1 or the welding disk 2) are coated on both sides of the heat generating layer 12a.
It is formed by depositing a heat-welding composition (12b).
【００１２】図１及び図３に示すように、第１の重ね部
１３は、溶着材１２を裏面側の側縁に貼着して形成され
ている。第１、第２の重ね部１３、１４は、溶着材１２
が熱溶融することにより、互いに溶融、溶着可能に形成
されている。そして、第１の重ね部１３は、先に設置さ
れた防水シート１０の防水シート本体１１の第２の重ね
部１４に重合した状態で互いに溶着されている。As shown in FIGS. 1 and 3, the first overlapped portion 13 is formed by adhering a welding material 12 to the side edge of the back side. The first and second overlapping parts 13 and 14 are made of welding material 12
are formed so that they can be melted and welded together by being thermally fused. The first overlapped portion 13 is welded to the second overlapped portion 14 of the waterproof sheet main body 11 of the waterproof sheet 10 installed previously in an overlapping state.
【００１３】以下、防水シート１０の作用を説明する。
防水シート１０を張設して防水幕Ｔを形成するには、ま
ず施工開始地点に基準となる防水シート１０ａを熱溶着
ディスク２に溶着して張設する。図２に示すように、防
水シート１０ａの熱溶着ディスク２への溶着は、予め熱
溶着ディスク２の表面に溶着材１２を貼着しておき、防
水シート１０ａを内壁面Ｗの所定の位置にセットすると
ともに、防水シート１０ａの表面から適切な電磁場を作
用させることにより熱溶着ディスク２の位置を検出する
。熱溶着ディスク２の位置の検出は、電磁場が発熱層１
２ａに作用して変化する結果、電磁場を発生させるため
に供給される電流に関する電気抵抗の変化を測定するこ
とにより行う。The function of the waterproof sheet 10 will be explained below. To form the waterproof curtain T by stretching the waterproof sheet 10, first, the waterproof sheet 10a serving as a reference is welded to the heat-welded disk 2 and stretched at the construction start point. As shown in FIG. 2, in order to weld the waterproof sheet 10a to the heat welding disc 2, welding material 12 is pasted on the surface of the heat welding disc 2 in advance, and the waterproof sheet 10a is placed at a predetermined position on the inner wall surface W. While setting, the position of the heat welding disk 2 is detected by applying an appropriate electromagnetic field from the surface of the waterproof sheet 10a. The position of the heat welding disk 2 is detected when the electromagnetic field is applied to the heating layer 1.
This is done by measuring the change in electrical resistance with respect to the current supplied to generate the electromagnetic field as a result of the change acting on 2a.
【００１４】そして、熱溶着ディスク２の検出位置に適
正な範囲、時間で所定の電磁場を作用させることにより
、防水シート１０ａ及び溶着材１２が溶融する温度に加
熱し、防水シート１０ａを熱溶着ディスク２に溶着する
。[0014] Then, by applying a predetermined electromagnetic field to the detection position of the heat welding disc 2 in an appropriate range and time, the waterproof sheet 10a and the welding material 12 are heated to a temperature that melts them, and the waterproof sheet 10a is attached to the heat welding disc 2. Weld to 2.
【００１５】次いで、図３に示すように、張設を完了し
た防水シート１０ａの第２の重ね部１４に第１の重ね部
１３を重合させて新たに防水シート１０ｂをセットし、
前記手順で熱溶着ディスク２に溶着するとともに、熱溶
着ディスク２への溶着と同様にして防水シート１０ｂの
表面から第１の重ね部１３を検出して防水シート１０ａ
の第２の重ね部１４と防水シート１０ｂの第１の重ね部
１３とを溶着する。以下、同様にして防水シート１０を
施工方向に連設していく。Next, as shown in FIG. 3, a new waterproof sheet 10b is set by overlapping the first overlapped portion 13 with the second overlapped portion 14 of the waterproof sheet 10a that has been stretched.
The waterproof sheet 10a is welded to the heat welding disk 2 in the above procedure, and the first overlapping portion 13 is detected from the surface of the waterproof sheet 10b in the same manner as the welding to the heat welding disk 2.
The second overlapped portion 14 of the waterproof sheet 10b and the first overlapped portion 13 of the waterproof sheet 10b are welded together. Thereafter, the waterproof sheets 10 are successively installed in the construction direction in the same manner.
【００１６】前記のように構成される防水シート１０は
、発熱層１２ａを検知することにより自身の表面側から
溶着位置を検出して、防水シート１０の取り付け位置等
を表面側から行なうことができる。The waterproof sheet 10 configured as described above can detect the welding position from the surface side by detecting the heat generating layer 12a, and can determine the attachment position of the waterproof sheet 10 from the surface side. .
【００１７】したがって、本実施例の防水シート１０に
よれば、防水シート１０をセットしたまま溶着を防水シ
ート１０の表面側から行なうことが可能であるから、こ
れら作業を連続して行なうことができ、溶着の作業能率
が向上する。同時に、防水シート１０と被覆工面の間に
溶着用器具を挿入する必要が解消するから、内壁面Ｗと
防水シート１０の間の空隙が減少する。Therefore, according to the waterproof sheet 10 of this embodiment, welding can be performed from the surface side of the waterproof sheet 10 while the waterproof sheet 10 is set, so these operations can be performed continuously. , welding work efficiency is improved. At the same time, since there is no need to insert a welding tool between the waterproof sheet 10 and the coating surface, the gap between the inner wall surface W and the waterproof sheet 10 is reduced.
【００１８】また、溶着は、電磁誘導により行なわれる
から、溶着部分のみを正確に溶着することができて手戻
りが減少するとともに、加熱時間等の調整が容易である
ことから作業に熟練が不要となって作業精度が向上する
。Furthermore, since welding is carried out by electromagnetic induction, only the welded parts can be accurately welded, reducing rework, and the heating time etc. can be easily adjusted, so no skill is required for the work. This improves work accuracy.
【００１９】以下本発明の第２実施例を、図４及び図５
を参照して説明する。A second embodiment of the present invention will be described below with reference to FIGS. 4 and 5.
Explain with reference to.
【００２０】図中符号２０は、本実施例の防水シートで
ある。防水シート２０と前記防水シート１０との異なる
点は、符号２１の溶着材のみである。なお、前記図１な
いし図３と同一の構成部分には、同一の符号を付し、そ
の説明を簡略化する。Reference numeral 20 in the figure is the waterproof sheet of this embodiment. The only difference between the waterproof sheet 20 and the waterproof sheet 10 is the welding material 21. Note that the same components as in FIGS. 1 to 3 are given the same reference numerals, and the explanation thereof will be simplified.
【００２１】図４及び図５に示すように、防水シート２
０は、防水シート本体１１に前記溶着材１２と同様の位
置で溶着材２０が塗着されてなっている。溶着材２１は
、鉄、アルミニウム、銅、ステンレススチール、真鍮、
強磁性粉（導電体または磁性体）からなる粉体を均一に
混入分散させた樹脂（熱溶着成組成物）などで電磁誘導
により発熱可能に形成されている。As shown in FIGS. 4 and 5, the waterproof sheet 2
0 has a welding material 20 applied to the waterproof sheet main body 11 at the same position as the welding material 12. The welding material 21 is iron, aluminum, copper, stainless steel, brass,
It is made of a resin (thermal welding composition) in which powder made of ferromagnetic powder (conductor or magnetic material) is uniformly mixed and dispersed, and is capable of generating heat by electromagnetic induction.
【００２２】防水シート２０をトンネル内壁面Ｗに張設
するには、図４に示すように、前記溶着ディスク２に予
め溶着材２１を塗着した上、防水シート２０をセットす
る。以下、溶着材２１を防水シート２０の表面から検出
することにより、前記防水シート１０と同様にして行う
。In order to stretch the waterproof sheet 20 on the tunnel inner wall surface W, as shown in FIG. 4, the welding material 21 is applied to the welding disk 2 in advance, and then the waterproof sheet 20 is set. Hereinafter, the welding material 21 is detected from the surface of the waterproof sheet 20 in the same manner as the waterproof sheet 10 described above.
【００２３】前記のように構成される防水シート２０に
よれば、前記防水シート１０と同様の効果を奏すること
は勿論、溶着位置には溶着材２１が塗着により付着され
ているから、防水シート本体１１の表面性状が前記溶着
材１２の貼着に困難であっても溶着材２１の付着が可能
であり、防水シート本体１１の材質や性状を多様にする
ことができる。The waterproof sheet 20 constructed as described above not only provides the same effects as the waterproof sheet 10 but also has the welding material 21 attached to the welding position by coating, so that the waterproof sheet Even if the surface quality of the main body 11 makes it difficult to adhere the welding material 12, the welding material 21 can be attached, and the material and properties of the waterproof sheet main body 11 can be varied.
【００２４】なお、溶着材１２は、防水シート１０に塗
着のほか、吹き付け、貼着などの方法により付着させて
もよい。[0024] The welding material 12 may be attached to the waterproof sheet 10 by methods such as spraying, pasting, etc. in addition to painting.
【００２５】また、溶着材１２を帯状、格子形状、一松
形状等にシート裏面に付着してもよいし、裏面全体に全
体に付着してもよい。Further, the welding material 12 may be attached to the back surface of the sheet in a band shape, a lattice shape, a single pin shape, etc., or may be attached to the entire back surface.
【００２６】[0026]
【発明の効果】以上説明したように、本発明の防水シー
トによれば、シート裏面に溶着材を付着することにより
、被溶着部に溶着可能に形成され、前記溶着材は、電磁
誘導により発熱作用を起こす導電体又は磁性体で形成さ
れた薄膜の両面に溶着性組成物を被着すること、ならび
にシート裏面に溶着材を付着することにより、被溶着部
に溶着可能に形成され、前記溶着材は、電磁誘導により
発熱作用を起こす導電体又は磁性体の粉体を含有した溶
着性組成物で形成することを特徴とするから、シートの
表面側から溶着位置を検出して溶着等を表面側からのみ
の作業により行なうことが可能となり、溶着の作業性及
び作業能率が向上する。同時に、防水シートと被覆工面
の間に従来のように溶着用器具を挿入する必要が解消す
るから、被覆工面と防水シートの間の空隙やシートの弛
みを減少する。As explained above, according to the waterproof sheet of the present invention, a welding material is attached to the back surface of the sheet so that it can be welded to the part to be welded, and the welding material generates heat by electromagnetic induction. By applying a welding composition to both sides of a thin film formed of a conductive or magnetic material that causes an action, and by applying a welding material to the back surface of the sheet, it is formed so that it can be welded to the part to be welded, and the welding The material is characterized by being formed of a welding composition containing conductive or magnetic powder that generates heat through electromagnetic induction, so the welding position can be detected from the front side of the sheet and welding etc. can be removed from the surface. Welding can be performed only from the side, improving welding workability and efficiency. At the same time, since it is no longer necessary to insert a welding tool between the waterproof sheet and the covering surface as in the past, the gap between the covering surface and the waterproof sheet and the slack of the sheet are reduced.
【００２７】また、溶着は、電磁誘導により行うから、
溶着部分のみを正確に溶着することができて手戻りが減
少するとともに、加熱時間等の調整が容易であることか
ら作業に熟練を要することなく、作業精度と作業能率が
極めて向上する。[0027] Furthermore, since welding is performed by electromagnetic induction,
It is possible to accurately weld only the welded parts, reducing rework, and since it is easy to adjust the heating time, etc., no skill is required for the work, and work accuracy and work efficiency are greatly improved.
【図１】本発明の一実施例を示す全体図である。FIG. 1 is an overall view showing an embodiment of the present invention.
【図２】熱溶着ディスクへのセット状態を示す側面図で
ある。FIG. 2 is a side view showing a state of setting on a heat-welding disk.
【図３】前記重ね部のセット状態を示す側面図である。FIG. 3 is a side view showing a set state of the overlapping portion.
【図４】本発明の第２実施例の前記熱溶着ディスクへの
セット状態を示す側面図である。FIG. 4 is a side view showing a state in which the second embodiment of the present invention is set on the heat-welding disk.
【図５】前記重ね部のセット状態を示す側面図である。FIG. 5 is a side view showing a set state of the overlapping portion.
【図６】従来の防水シートの施工方法を示す全体図であ
る。FIG. 6 is an overall view showing a conventional waterproof sheet construction method.
【図７】熱溶着ディスクを示す側面図である。FIG. 7 is a side view showing a heat welding disc.
１０ 防水シート １０ａ 防水シート １０ｂ 防水シート １２ 溶着材 １２ａ 発熱層（薄膜） １２ｂ 樹脂（溶着性組成物） ２０ 防水シート ２１ 溶着材 Ｗ 内壁面（被覆工面） 10 Waterproof sheet 10a Waterproof sheet 10b Waterproof sheet 12 Welding material 12a Heat generating layer (thin film) 12b Resin (welding composition) 20 Waterproof sheet 21 Welding material W Inner wall surface (coated surface)
Claims (2)
て被覆工面と反対の側に防水作用をもたらす防水シート
であって、シート裏面に溶着材を付着することにより、
被溶着部に溶着可能に形成され、前記溶着材は、電磁誘
導により発熱作用を起こす導電体又は磁性体で形成され
た薄膜の両面に溶着性組成物を被着してなることを特徴
とする防水シート。Claim 1: A waterproof sheet that is stretched over a wall-like covering surface and provides a waterproofing effect on the side opposite to the covering surface, which has a welding material attached to the back surface of the sheet,
The welding material is formed such that it can be welded to the part to be welded, and the welding material is formed by coating a welding composition on both sides of a thin film made of a conductor or magnetic material that generates heat by electromagnetic induction. Tarpaulin.
て被覆工面と反対の側に防水作用をもたらす防水シート
であって、シート裏面に溶着材を付着することにより、
被溶着部に溶着可能に形成され、前記溶着材は、電磁誘
導により発熱作用を起こす導電体又は磁性体の粉体を含
有した溶着性組成物からなることを特徴とする防水シー
ト。[Claim 2] A waterproof sheet that is stretched over a covered surface constructed in the form of a wall and provides a waterproofing effect on the side opposite to the covered surface, which comprises:
1. A waterproof sheet formed to be weldable to a part to be welded, wherein the welding material is made of a weldable composition containing conductive or magnetic powder that generates heat by electromagnetic induction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14114491A JP2860309B2 (en) | 1991-05-16 | 1991-05-16 | Tarpaulin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14114491A JP2860309B2 (en) | 1991-05-16 | 1991-05-16 | Tarpaulin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04339999A true JPH04339999A (en) | 1992-11-26 |
| JP2860309B2 JP2860309B2 (en) | 1999-02-24 |
Family
ID=15285187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14114491A Expired - Fee Related JP2860309B2 (en) | 1991-05-16 | 1991-05-16 | Tarpaulin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2860309B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671599U (en) * | 1993-03-11 | 1994-10-07 | 小林 芳一 | Electromagnetic heating welding sheet for tunnel lining |
| KR100390658B1 (en) * | 2000-05-29 | 2003-07-04 | 연일화섬공업(주) | Waterproof Work to Tunnel Use for Packing |
| JP2021088647A (en) * | 2019-12-03 | 2021-06-10 | 倉敷紡績株式会社 | Flexible polyurethane foam sheet and multilayer sheet using the same |
-
1991
- 1991-05-16 JP JP14114491A patent/JP2860309B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671599U (en) * | 1993-03-11 | 1994-10-07 | 小林 芳一 | Electromagnetic heating welding sheet for tunnel lining |
| KR100390658B1 (en) * | 2000-05-29 | 2003-07-04 | 연일화섬공업(주) | Waterproof Work to Tunnel Use for Packing |
| JP2021088647A (en) * | 2019-12-03 | 2021-06-10 | 倉敷紡績株式会社 | Flexible polyurethane foam sheet and multilayer sheet using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2860309B2 (en) | 1999-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4871412A (en) | Bonding thermoplastic layers via electrical heating | |
| ATE147322T1 (en) | METHOD AND DEVICE FOR DETERMINING THE HEATING CONDITION OF A PART MADE OF THERMOPLASTIC MATERIAL AND CONNECTOR FOR WELDING PLASTIC PARTS | |
| JP6598279B1 (en) | Heat sealer with interface temperature sensor | |
| EP0097677A1 (en) | Joining/separating sheet material along edges. | |
| JPH04339999A (en) | Waterproof sheet | |
| GB2082500A (en) | A method and apparatus for welding sheets of thermoplastic material | |
| GB892942A (en) | Improvements in or relating to a process and equipment for welding thermoplastic materials | |
| JP2993974B2 (en) | How to attach gasket or molding to glass plate | |
| JPH10140774A (en) | Waterproof sheet construction electromagnetic induction heater | |
| JPH04254649A (en) | Waterproof sheet application method for building | |
| US20050252608A1 (en) | Method for bonding thermoplastic or thermoset polymeric materials utilizing voltage applied to conductive material | |
| US3576963A (en) | Welding method | |
| JPS61666A (en) | Repairing of sheet and hood | |
| US3056884A (en) | Welding method | |
| JPH07158395A (en) | Waterproof sheet fixing disc | |
| GB1567632A (en) | Apparatus including tape with thermoplastic adhesive for installing carpeting | |
| JPH06179240A (en) | Bonding method of thermoplastic resin sheet | |
| JPH05286034A (en) | Method and apparatus for bonding sheets by ultrasonic welding | |
| JP3540125B2 (en) | Quality inspection method for resistance welding | |
| JPH04368563A (en) | Flooring bonding method and flooring adhesive tape | |
| JPH06882A (en) | Fusion band | |
| JPH04297699A (en) | Sheet spreading disc and sheet spreading execution method | |
| JPS6171188A (en) | Resistance welding method of laminated palte | |
| JPS6312910B2 (en) | ||
| JPH04221198A (en) | Applying of waterproof sheet for tunnel construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980818 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |