JP2000179103A - Waterproof sheet laying fixing jig and laying method for waterproof sheet - Google Patents

Waterproof sheet laying fixing jig and laying method for waterproof sheet

Info

Publication number
JP2000179103A
JP2000179103A JP35732898A JP35732898A JP2000179103A JP 2000179103 A JP2000179103 A JP 2000179103A JP 35732898 A JP35732898 A JP 35732898A JP 35732898 A JP35732898 A JP 35732898A JP 2000179103 A JP2000179103 A JP 2000179103A
Authority
JP
Japan
Prior art keywords
waterproof sheet
fixing jig
laying
fixing
resin layer
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.)
Pending
Application number
JP35732898A
Other languages
Japanese (ja)
Inventor
Takuji Yamanaka
卓司 山中
Masaya Sera
昌也 世良
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.)
Tsutsunaka Plastic Industry Co Ltd
Original Assignee
Tsutsunaka Plastic Industry Co Ltd
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 Tsutsunaka Plastic Industry Co Ltd filed Critical Tsutsunaka Plastic Industry Co Ltd
Priority to JP35732898A priority Critical patent/JP2000179103A/en
Publication of JP2000179103A publication Critical patent/JP2000179103A/en
Pending 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30221—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being point-like
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • 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
    • 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
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially 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
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/70—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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • 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
    • B29C66/71—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 composition of the plastics material 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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8742—Safety measures or devices for operators
    • 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 Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof sheet laying fixing jig and a laying method of a waterproof sheet capable of improving the external appearance without making any melting recess section (melting trace) on the surface of the waterproof sheet after it is laid when deposited connection between the fixing jig and waterproof sheet is made by using an ultrasonic wave. SOLUTION: The surface of a coated resin layer 3 as a joint surface between a fixing jig 1 and a waterproof sheet 15 is formed in an uneven shape, the resin layer 3 is placed on a construction 11 as an object of waterproofing in a state to put it thereon and is fixed to the construction 11, and after the resin waterproof sheet 15 is stretched thereon, an ultrasonic wave is radiated from above of the waterproof sheet 15 to make deposited joint of a resin part bringing the fixing jig into contact with the waterproof sheet 15.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、防水シートを防
水すべき構造物に接合固定するために用いられる敷設用
固定治具、及びこれを用いた防水シートの敷設方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation fixing jig used for joining and fixing a waterproof sheet to a structure to be waterproofed, and a method for laying a waterproof sheet using the same.

【０００２】[0002]

【従来の技術】従来より、例えばビルや家屋等の防水を
必要とする屋外側の躯体表面には、雨水等の侵入を防ぐ
ために、合成樹脂からなる防水シートを絶縁工法を用い
たシート防水工法により張設することが一般的に行われ
ている。この絶縁工法とは、構造物の表面に、例えば塩
化ビニル樹脂被覆鋼板からなる円板状の敷設用固定治具
が開脚釘、カールプラグ等の固着具により点在状態に多
数固定され、合成樹脂等からなる防水シートが、構造物
の表面上に張り渡されるようにして、敷設用固定治具に
溶剤や熱により接着されるか、あるいは接着剤により接
着されるものである。2. Description of the Related Art Conventionally, a waterproof sheet made of a synthetic resin is applied to a surface of an outdoor frame, such as a building or a house, which requires waterproofing, in order to prevent rainwater or the like from entering the sheet. It is common practice to stretch the cable. This insulation method means that a large number of disc-like laying fixtures made of, for example, a vinyl chloride resin-coated steel sheet are fixed on the surface of the structure in a dotted state by fixing tools such as open leg nails, curl plugs, and the like. A waterproof sheet made of a resin or the like is adhered to the laying fixture with a solvent or heat or an adhesive so that the waterproof sheet made of resin or the like is stretched over the surface of the structure.

【０００３】しかし、熱により接着する方法では作業者
が熱源に触れて火傷を負う可能性があり作業の安全衛生
上好ましいものではないし、また溶剤や接着剤を用いる
方法ではこれらを接合部に塗布するのに煩雑な作業を要
して施工性、生産性に劣るのみならず、溶剤や接着剤の
塗布作業時にこれらの化学薬剤の蒸気を作業者が吸い込
むことは回避し難く、前者の方法と同様に安全衛生上好
ましいものではなかった。[0003] However, the method of bonding by heat is not preferable in terms of work safety and hygiene since an operator may touch a heat source and cause burns. In the case of a method using a solvent or an adhesive, these are applied to the joint. Not only is it inconvenient to perform work because it requires complicated work, but also inferior in workability and productivity, and it is difficult to avoid that workers inhale the vapor of these chemicals when applying solvents and adhesives. Similarly, it was not preferable for safety and health.

【０００４】そこで、特公平６−９９９９５号公報に
は、構造物（１００）の上に固定された、上層に平坦な
樹脂層（１０１ａ）を有する敷設用固定治具（１０１）
の上に、更に防水シート（１０２）を敷設した後、該防
水シート（１０２）の上から超音波を照射することによ
って敷設用固定治具（１０１）と防水シート（１０２）
とが当接した両者の樹脂部分を溶融させて固定治具（１
０１）と防水シート（１０２）とを溶着接合する方法が
記載されている。このような超音波照射による振動によ
り発生する熱を利用して溶着させるものであるから、エ
ネルギー効率が良く、短時間で相互の溶着を行うことが
できると共に、両者の当接部以外の他の部分に熱が殆ど
発生せず他の部分を変形させるようなこともない。ま
た、いわゆる熱源そのものは用いないから作業者が火傷
を負うことはないし、溶剤や接着剤を用いないから優れ
た作業環境を確保することができるものである。Therefore, Japanese Patent Publication No. 6-99995 discloses a laying fixture (101) having a flat resin layer (101a) as an upper layer, which is fixed on a structure (100).
After further laying a waterproof sheet (102) on the sheet, the fixing jig (101) for laying and the waterproof sheet (102) are irradiated by applying ultrasonic waves from above the waterproof sheet (102).
Is melted, and the fixing jig (1)
01) and a method of welding and joining the waterproof sheet (102). Since the welding is performed by utilizing the heat generated by the vibration due to the ultrasonic irradiation, it is possible to perform the mutual welding in a short time with good energy efficiency, and to perform the welding other than the contact portion between the two. Heat is hardly generated in one part, and the other part is not deformed. Further, since a so-called heat source itself is not used, a worker is not burned, and an excellent working environment can be secured because no solvent or adhesive is used.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、上記従
来技術においては次のような問題があった。即ち、超音
波はその発信源に近いところほど力が強いという性質を
有しているために、前記超音波照射の際に、固定治具
（１０１）と防水シート（１０２）との当接面よりも、
超音波ホーン（超音波照射装置）（１０５）と防水シー
ト（１０２）との当接面（シート上面）の方が著しく強
く加熱される結果となり、従って防水シート（１０２）
における超音波ホーン（１０５）と当接した当接上層部
（１０２ａ）の方が溶融の程度が大きくなり、その結
果、図７（ロ）に示すように、接合後の防水シート（１
０２）表面において、超音波ホーン（１０５）を押し当
てた当接部分に溶融凹部（１０３）、即ち痕跡となる凹
部が生じてしまって、外観体裁不良となるという問題が
あった。また、このような凹部（１０３）が生じると防
水シートの該凹部（１０３）位置において所望厚さを確
保し得なくなって十分な防水性能を保証できなくなる、
特に耐久性能が顕著に低下してしまうという問題があっ
た。溶融の程度が進み過ぎた場合には、該当接部分に穴
開きが生じることもあった。もちろん、このような防水
シート表面における凹部の発生を防止すべく超音波の照
射時間を短縮すれば、本来目的である固定治具と防水シ
ートとの溶着が不十分となってしまい十分な接合固定を
行うことができなくなるという不具合を生じる。However, the above prior art has the following problems. That is, since the ultrasonic wave has a property that the closer to the transmission source, the stronger the force, the contact surface between the fixing jig (101) and the waterproof sheet (102) during the ultrasonic irradiation. than,
The contact surface (sheet upper surface) between the ultrasonic horn (ultrasonic wave irradiator) (105) and the waterproof sheet (102) is heated significantly more, and therefore the waterproof sheet (102)
The degree of melting of the contact upper layer portion (102a) in contact with the ultrasonic horn (105) is larger, and as a result, as shown in FIG.
02) On the surface, there was a problem that a melted concave portion (103), that is, a concave portion serving as a trace was formed in a contact portion where the ultrasonic horn (105) was pressed, resulting in poor appearance and appearance. Further, when such a concave portion (103) is generated, a desired thickness cannot be secured at the position of the concave portion (103) of the waterproof sheet, and sufficient waterproof performance cannot be guaranteed.
In particular, there is a problem that the durability performance is significantly reduced. If the degree of melting was too advanced, a perforation could occur at the contact portion. Of course, if the irradiation time of the ultrasonic wave is shortened to prevent the occurrence of the concave portion on the surface of the waterproof sheet, the welding purpose between the fixing jig and the waterproof sheet, which is originally intended, becomes insufficient, and the joint is sufficiently fixed. Cannot be performed.

【０００６】この発明は、かかる技術的背景に鑑みてな
されたものであって、超音波を照射することによって防
水シートと敷設用固定治具の樹脂溶着による接合を行う
場合において、敷設後の防水シート表面上に溶融凹部
（溶融跡）を生じることがなく、その外観体裁を良好な
ものとすることができると共に、施工後において優れた
防水性能の確保が可能となる防水シート敷設用固定治具
及び防水シートの敷設方法を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned technical background, and in a case where a waterproof sheet and a laying fixture are joined by resin welding by irradiating ultrasonic waves, waterproofing after laying is performed. A fixing jig for laying a waterproof sheet, which can have a good external appearance without forming a molten concave portion (melt mark) on the sheet surface and can ensure excellent waterproof performance after construction. And a method for laying a waterproof sheet.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明者は鋭意研究の結果、敷設用固定治具におけ
る防水シートとの接合面となる樹脂面が凹凸形状に形成
されていることによって、敷設後の防水シート表面上に
溶融凹部を生じることを防止できることを見出すに至
り、この発明を完成したものである。Means for Solving the Problems In order to achieve the above object, the present inventors have made intensive studies and as a result, the resin surface to be joined to the waterproof sheet in the fixing jig for laying is formed in an uneven shape. As a result, it has been found that it is possible to prevent the occurrence of a molten concave portion on the surface of the waterproof sheet after the laying, thereby completing the present invention.

【０００８】即ち、この発明に係る防水シート敷設用固
定治具は、熱可塑性樹脂からなる防水シートを防水すべ
き構造物に接合固定するために用いられるものであっ
て、鋼板等の板材の少なくとも片面に熱可塑性樹脂が被
覆されてなり、該被覆樹脂層と防水シートとが超音波照
射により溶融して相互に溶着されて接合がなされる防水
シート敷設用固定治具において、前記防水シートとの接
合面となる被覆樹脂層表面が凹凸形状に形成されている
ことを特徴とするものである。That is, the fixing jig for laying a waterproof sheet according to the present invention is used for joining and fixing a waterproof sheet made of a thermoplastic resin to a structure to be waterproofed. A fixing jig for laying a waterproof sheet in which one side is coated with a thermoplastic resin, and the coated resin layer and the waterproof sheet are melted by ultrasonic irradiation and welded to each other to be joined together. The surface of the coating resin layer serving as a bonding surface is formed in an uneven shape.

【０００９】防水シートとの接合面となる被覆樹脂層表
面が凹凸形状に形成されていることで、超音波照射の際
に、固定治具と防水シートとの当接面積が従来よりも小
さくなるから、同強度の超音波振動を与えてもより大き
なエネルギー、ひいては一段と大きな熱が発生し、固定
治具と防水シートとの溶着接合が完了するのに要する時
間は従来よりも短縮される。従って、固定治具と防水シ
ートが超音波照射によって接合が完了するまでの間に進
行する防水シートの当接上層部（超音波照射装置と当接
する上層部）の溶融の程度が、従来の表面（固定治具の
樹脂層表面）が平坦な場合と比較して相対的に小さいも
のとなる。従って敷設後の防水シート表面上に溶融凹部
が発生することが効果的に防止され、防水シート表面の
外観体裁を良好に敷設施工することが可能となる。[0009] Since the surface of the coating resin layer serving as a bonding surface with the waterproof sheet is formed in an uneven shape, the contact area between the fixing jig and the waterproof sheet during ultrasonic irradiation becomes smaller than before. Therefore, even if the ultrasonic vibration of the same intensity is applied, greater energy, and thus greater heat, is generated, and the time required for completing the welding and joining between the fixing jig and the waterproof sheet is shortened as compared with the related art. Therefore, the degree of melting of the contact upper layer (upper layer contacting with the ultrasonic irradiation device) of the waterproof sheet, which proceeds until the fixing jig and the waterproof sheet are joined by ultrasonic irradiation, is determined by the conventional surface. (The surface of the resin layer of the fixing jig) is relatively small as compared with the case where it is flat. Therefore, it is possible to effectively prevent the occurrence of the molten concave portion on the surface of the waterproof sheet after the laying, and to lay and construct the appearance of the surface of the waterproof sheet satisfactorily.

【００１０】また、この発明に係る防水シートの敷設方
法は、構造物の防水すべき表面に、鋼板等の板材の少な
くとも片面に熱可塑性樹脂が被覆されてなる敷設用固定
治具を、該被覆樹脂層が上になる態様で配置して前記構
造物に固定した後、熱可塑性樹脂からなる防水シートを
前記構造物上に張り渡して該防水シートの上から超音波
を照射して前記固定治具と防水シートとが当接した樹脂
部分を溶融させて固定治具と防水シートとを溶着接合す
る防水シートの敷設方法において、前記敷設用固定治具
における防水シートとの接合面となる被覆樹脂層表面が
凹凸形状に形成されていることを特徴とするものであ
る。Further, the method for laying a waterproof sheet according to the present invention is characterized in that a laying fixing jig in which a surface of a structure to be waterproofed is coated with a thermoplastic resin on at least one side of a plate material such as a steel plate, After the resin layer is disposed on the structure and fixed to the structure, a waterproof sheet made of a thermoplastic resin is stretched over the structure, and ultrasonic waves are irradiated from above the waterproof sheet to fix the structure. In a method of laying a waterproof sheet for melting a resin portion where a fixture and a waterproof sheet come into contact with each other and welding and joining the fixing jig and the waterproof sheet, a coating resin serving as a joint surface of the fixing jig for laying with the waterproof sheet It is characterized in that the surface of the layer is formed in an uneven shape.

【００１１】防水シートとの接合面となる被覆樹脂層表
面が凹凸形状に形成されていることで、超音波照射の際
に、固定治具と防水シートとの当接面積が従来よりも小
さいものとなるから、前記同様に固定治具と防水シート
との溶着接合が完了するのに要する時間は従来よりも短
縮される。従って、固定治具と防水シートが超音波照射
によって接合が完了するまでの間に進行する防水シート
の当接上層部の溶融の程度が従来と比較して相対的に小
さいものとなる。従って敷設後の防水シート表面上に溶
融凹部が発生することが効果的に防止され、防水シート
表面の外観体裁を良好に敷設施工することが可能とな
る。[0011] The surface of the coating resin layer, which is the bonding surface with the waterproof sheet, is formed in an uneven shape so that the contact area between the fixing jig and the waterproof sheet during ultrasonic irradiation is smaller than before. Therefore, the time required for completing the welding and joining of the fixing jig and the waterproof sheet is shortened as compared with the conventional case. Therefore, the degree of melting of the contact upper layer portion of the waterproof sheet, which proceeds until the fixing jig and the waterproof sheet are joined by the ultrasonic irradiation, is relatively small as compared with the related art. Therefore, it is possible to effectively prevent the occurrence of the molten concave portion on the surface of the waterproof sheet after the laying, and to lay and construct the appearance of the surface of the waterproof sheet satisfactorily.

【００１２】上記敷設用固定治具と防水シートの当接面
積は、前記超音波照射を行う装置の照射面と防水シート
との当接面積よりも小さくなされているのが望ましく、
これにより超音波照射装置の照射面と防水シートとの当
接面よりも固定治具と防水シートとの当接面の方が強く
加熱されるから、防水シートの当接上層部の溶融の程度
を一段と小さいものとなすことができ、ひいては敷設後
の防水シート表面上の溶融凹部の発生がより確実に防止
される。The contact area between the fixing jig for laying and the waterproof sheet is desirably smaller than the contact area between the irradiation surface of the ultrasonic irradiation device and the waterproof sheet.
As a result, the contact surface between the fixing jig and the waterproof sheet is heated more strongly than the contact surface between the irradiation surface of the ultrasonic irradiation device and the waterproof sheet. Can be made even smaller, and thus the occurrence of molten recesses on the surface of the waterproof sheet after laying can be more reliably prevented.

【００１３】[0013]

【発明の実施の形態】次に、この発明に係る防水シート
敷設用固定治具を図面に基づいて説明する。図１は、こ
の発明の防水シート敷設用固定治具（１）の一実施形態
を示す図であって、同図（イ）は上面図、同図（ロ）は
図（イ）におけるＡ−Ａ線の端面図である。本実施形態
の固定治具（１）は、中央部に固着具挿入孔（２ａ）が
設けられた円板状の治具本体（２）の片面に、被覆樹脂
層（３）が設けられたものである。この被覆樹脂層
（３）の表面には略円錐形状の突起（３ａ）…が多数形
成されることによって、該被覆樹脂層（３）表面が凹凸
形状となるようになされている。本実施形態において
は、突起（３ａ）…が縦横に整列状態に散在して配置さ
れている。なお、前記固着具挿入孔（２ａ）は、固定治
具（１）を構造物（１１）に接合固定するための開脚
釘、カールプラグ等の固着手段を挿入するための孔であ
る。Next, a fixing jig for laying a waterproof sheet according to the present invention will be described with reference to the drawings. FIG. 1 is a view showing an embodiment of a fixing jig (1) for laying a waterproof sheet according to the present invention, wherein FIG. 1 (a) is a top view, and FIG. It is an end elevation of the A line. In the fixing jig (1) of the present embodiment, a coating resin layer (3) is provided on one surface of a disc-shaped jig main body (2) having a fixing tool insertion hole (2a) provided at a central portion. Things. By forming a large number of substantially conical projections (3a) on the surface of the coating resin layer (3), the surface of the coating resin layer (3) is made uneven. In the present embodiment, the protrusions (3a) are scattered and arranged vertically and horizontally. The fixing tool insertion hole (2a) is a hole for inserting fixing means such as an open leg nail or a curl plug for joining and fixing the fixing tool (1) to the structure (11).

【００１４】この発明において、治具本体（２）の形状
としては、通常、上記実施形態のような円板状などの板
状のものが用いられる。例えば、金属板、鋼板あるいは
合成樹脂板等の板材からなるもの等が挙げられる。もち
ろん形状はこのような板状のものに限定されるものでは
なく、構造物躯体への固定のための開脚釘、カールプラ
グ等の固着手段が一体に形成されたものであっても良
い。In the present invention, as the shape of the jig body (2), a plate-like shape such as a disc-like shape as in the above embodiment is usually used. For example, a member made of a plate material such as a metal plate, a steel plate, or a synthetic resin plate may be used. Of course, the shape is not limited to such a plate-like shape, and a fixing means such as an open leg nail or a curl plug for fixing to a structural body may be integrally formed.

【００１５】この発明において、被覆樹脂層（３）は、
熱可塑性樹脂からなる被覆層であれば特に限定されない
が、接合対象の防水シート（１５）を構成する樹脂と同
種の樹脂を用いるのが好ましく、これにより超音波照射
による溶着接合の際の樹脂同士の相溶性を一層向上でき
て、固定治具（１）と防水シート（１５）との接合強度
をより向上させることができる。中でも、同一樹脂を用
いるのが特に好ましい。被覆樹脂層（３）を構成する樹
脂としては、例えば塩化ビニル樹脂、ポリエチレン樹
脂、ポリプロピレン樹脂等のオレフィン系樹脂などが挙
げられる。なお、上記実施形態においては、治具本体
（２）の片面に被覆樹脂層（３）が設けられた構成とな
されているが、治具本体（２）の両面に被覆樹脂層
（３）（３）が設けられた構成であっても良い。In the present invention, the coating resin layer (3)
The coating layer is not particularly limited as long as it is a coating layer made of a thermoplastic resin. However, it is preferable to use the same type of resin as the resin constituting the waterproof sheet (15) to be joined. Of the fixing jig (1) and the waterproof sheet (15) can be further improved. Among them, it is particularly preferable to use the same resin. Examples of the resin constituting the coating resin layer (3) include olefin resins such as vinyl chloride resin, polyethylene resin, and polypropylene resin. In the above embodiment, the coating resin layer (3) is provided on one side of the jig body (2). However, the coating resin layers (3) ( 3) may be provided.

【００１６】そして、この発明では、上記敷設用固定治
具（１）における防水シート（１５）との接合面となる
被覆樹脂層（３）の表面は凹凸形状に形成されている必
要がある。このように防水シート（１５）との接合面が
凹凸形状に形成されることで、固定治具（１）と防水シ
ート（１５）との当接面積が従来よりも小さいものとな
る。この当接面積が小さくなることにより、同じ強度の
超音波振動を与えた場合において、より大きなエネルギ
ーを発生する、即ち一段と大きな熱が発生することにな
るため、固定治具（１）と防水シート（１５）との溶着
接合が完了するのに要する時間は従来よりも短縮され
る。従って、固定治具（１）と防水シート（１５）が超
音波照射によって接合が完了するまでの間に進行する防
水シートの当接上層部（超音波照射装置と当接する上層
部）（１５ａ）の溶融の程度が従来と比較して相対的に
小さいものとなるから、敷設後の防水シート（１５）表
面上に溶融凹部が発生することが効果的に防止される。In the present invention, the surface of the covering resin layer (3), which is to be a bonding surface with the waterproof sheet (15) in the fixing jig (1) for laying, needs to be formed in an uneven shape. Since the joint surface with the waterproof sheet (15) is formed in an uneven shape in this way, the contact area between the fixing jig (1) and the waterproof sheet (15) becomes smaller than before. When the contact area is reduced, when the same intensity of ultrasonic vibration is applied, larger energy is generated, that is, more heat is generated. Therefore, the fixing jig (1) and the waterproof sheet are generated. The time required to complete the welding and joining with (15) is shorter than before. Therefore, the contact upper layer of the waterproof sheet (upper layer contacting the ultrasonic irradiation device) (15a) which proceeds until the fixing jig (1) and the waterproof sheet (15) are joined by ultrasonic irradiation is completed. Since the degree of melting is relatively small as compared with the related art, it is possible to effectively prevent the occurrence of a molten concave portion on the surface of the waterproof sheet (15) after the laying.

【００１７】上記凹凸の形状は特に限定されるものでは
ない。例えば突起を形成させることによって凹凸形状を
付与せしめる場合には、突起の形状は上記実施形態のよ
うに円錐形状であっても良いし、あるいは図４に示すよ
うに円柱形状であっても良い。また、このような突起
（３ａ）の配置態様は特に限定されるものではなく、上
記実施形態のように点状の突起（３ａ）が散在状態に配
置される態様でも良いし、図２に示すように波線状の突
起（３ａ）が複数配置された態様でも良く、あるいは図
３に示すように略同心円状に配置された複数の円状突起
（３ａ）が配置された構成であっても良い。また、凹凸
形状は、防水シート（１５）との接合面となる被覆樹脂
層（３）の全面に亘って連続状に形成されている必要は
なく、例えば被覆樹脂層（３）表面の中心部に円状など
の凹部が単に１つ形成されてその周囲の残部が凸部とし
て残存された構成であっても良い。The shape of the irregularities is not particularly limited. For example, when the projections are formed to have a concavo-convex shape, the projections may have a conical shape as in the above embodiment, or may have a cylindrical shape as shown in FIG. Further, the arrangement of the projections (3a) is not particularly limited, and may be an aspect in which the point-like projections (3a) are arranged in a scattered state as in the above-described embodiment, as shown in FIG. A configuration in which a plurality of wavy projections (3a) are arranged as described above may be adopted, or a configuration in which a plurality of circular projections (3a) arranged substantially concentrically as shown in FIG. 3 may be arranged. . In addition, the uneven shape does not need to be formed continuously over the entire surface of the coating resin layer (3) that is to be a bonding surface with the waterproof sheet (15). For example, the central portion of the surface of the coating resin layer (3) Alternatively, a single concave portion such as a circular shape may be formed on the substrate, and the remaining portion around the concave portion may be left as a convex portion.

【００１８】上記凹凸形状は、生産効率、コスト、再現
精度等の観点から、被覆樹脂層（３）に用いるシートに
エンボス加工を施すことにより形成させるのが好適であ
るが、特にこのようなエンボス加工によって形成された
ものに限定されるものではない。From the viewpoints of production efficiency, cost, reproducibility and the like, it is preferable to form the uneven shape by embossing the sheet used for the coating resin layer (3). It is not limited to one formed by processing.

【００１９】この発明の敷設用固定治具（１）を用いた
防水シートの敷設は、例えば次のようにして行うことが
できる。The laying of the waterproof sheet using the laying fixing jig (1) of the present invention can be performed, for example, as follows.

【００２０】まず、ビルディング等の構造物（１１）に
おける陸屋根のような防水すべき表面に、多数の上記固
定治具（１）を分散させて、固着具（１３）を用いて構
造物（１１）の躯体に固定する。すなわち、構造物（１
１）上に固定治具（１）を、その被覆樹脂層（３）が上
側になる態様で分散させて配置して、該固定治具（１）
の固着具挿入孔（２ａ）に、開脚釘、カールプラグ等の
機械的固着手段からなる固着具（１３）を挿入、貫通し
て、構造物（１１）の躯体に固定することにより、固定
治具（１）を構造物（１１）上に固定する。First, a number of the fixing jigs (1) are dispersed on a surface to be waterproofed such as a flat roof of a structure (11) such as a building, and the structure (11) is fixed by using a fixing device (13). ). That is, the structure (1
1) The fixing jig (1) is dispersed and arranged on the fixing jig (1) such that the coating resin layer (3) is on the upper side, and the fixing jig (1) is disposed.
A fixing tool (13) made of mechanical fixing means such as an open leg nail or a curl plug is inserted and penetrated into the fixing tool insertion hole (2a), and is fixed to the frame of the structure (11). The jig (1) is fixed on the structure (11).

【００２１】続いて防水シート（１５）を、前記固定治
具（１）…が配置された構造物（１１）を上方から被覆
するように配置する。この状態で、防水シート（１５）
における前記固定治具（１）の直上位置に相当する表面
（以下、「照射対象面」という）に超音波ホーン等の超
音波照射装置（２０）を載置し、好ましくは押圧しなが
ら超音波を照射する。この時、照射対象面上で超音波照
射装置（２０）の照射面を動かしながら超音波照射して
も良い。Subsequently, the waterproof sheet (15) is arranged so as to cover the structure (11) on which the fixing jigs (1) are arranged from above. In this state, the waterproof sheet (15)
An ultrasonic irradiation device (20) such as an ultrasonic horn is placed on a surface (hereinafter, referred to as an “irradiation target surface”) corresponding to a position directly above the fixing jig (1), and the ultrasonic wave is preferably applied while pressing. Is irradiated. At this time, the ultrasonic irradiation may be performed while moving the irradiation surface of the ultrasonic irradiation device (20) on the irradiation target surface.

【００２２】この超音波照射によって、固定治具（１）
と防水シート（１５）とが当接した両者の樹脂部分を溶
融させて固定治具（１）と防水シート（１５）とを溶着
接合することができる。この時、防水シート（１５）と
の接合面となる被覆樹脂層（３）表面が凹凸形状に形成
されているから、前述したように、超音波照射の際に、
固定治具（１）と防水シート（１５）との当接面積が従
来よりも小さいものとなり、両者（１）（１５）の溶着
接合が完了するのに要する時間は従来よりも短縮され、
従って固定治具（１）と防水シート（１５）が超音波照
射によって接合が完了するまでの間に進行する防水シー
トの当接上層部（１５ａ）の溶融の程度が従来と比較し
て相対的に小さいものとなる。従って敷設後の防水シー
ト（１５）表面上に溶融凹部が発生することを効果的に
防止することができ、防水シート（１５）表面の外観体
裁を良好状態に敷設施工することができる。かつ、敷設
施工後の防水シートにおける前記当接上層部（１５ａ）
に溶融凹部が発生しないので、防水シート（１５）はい
かなる部分においても所望の厚さを確保することがで
き、従って施工後において優れた防水性能及び優れた耐
久性能を確保することができる。By this ultrasonic irradiation, the fixing jig (1)
The fixing jig (1) and the waterproof sheet (15) can be welded and joined by melting the resin portions of the two parts, which have come into contact with the waterproof sheet (15). At this time, since the surface of the coating resin layer (3) serving as a bonding surface with the waterproof sheet (15) is formed in an uneven shape, as described above, when the ultrasonic irradiation is performed,
The contact area between the fixing jig (1) and the waterproof sheet (15) is smaller than before, and the time required for completing the welding and joining of both (1) and (15) is shorter than before.
Therefore, the degree of melting of the contact upper layer portion (15a) of the waterproofing sheet, which proceeds until the fixing jig (1) and the waterproofing sheet (15) are joined by ultrasonic irradiation, is relatively smaller than that of the related art. Will be smaller. Therefore, it is possible to effectively prevent the occurrence of a molten concave portion on the surface of the waterproof sheet (15) after the laying, and to lay and construct the surface of the waterproof sheet (15) in a good appearance. And the said contact upper layer part (15a) in the waterproof sheet after laying construction
Since the molten concave portion does not occur in the waterproof sheet (15), the waterproof sheet (15) can secure a desired thickness in any part, and thus can secure excellent waterproof performance and excellent durability after construction.

【００２３】更に、敷設用固定治具（１）と防水シート
（１５）の当接面積は、超音波照射を行う装置の照射面
と防水シート（１５）との当接面積よりも小さくなされ
ているのが望ましく、本実施形態においてはこのような
条件が満たされている。そして、このような条件が満た
されている場合には超音波照射装置（２０）の照射面と
防水シート（１５）との当接面よりも固定治具（１）と
防水シート（１５）との当接面の方が強く加熱されるか
ら、防水シート（１５）の当接上層部（１５ａ）の溶融
の程度を一段と小さくすることができ、従って敷設後の
防水シート（１５）の外観体裁を一層良好な状態にする
ことができる。The contact area between the fixing jig (1) for laying and the waterproof sheet (15) is made smaller than the contact area between the irradiation surface of the ultrasonic irradiation device and the waterproof sheet (15). Preferably, such a condition is satisfied in the present embodiment. Then, when such conditions are satisfied, the fixing jig (1) and the waterproof sheet (15) are more than the contact surface between the irradiation surface of the ultrasonic irradiation device (20) and the waterproof sheet (15). Since the contact surface of the waterproof sheet (15) is heated more strongly, the degree of melting of the contact upper layer portion (15a) of the waterproof sheet (15) can be further reduced, and therefore, the appearance of the waterproof sheet (15) after laying is reduced. Can be further improved.

【００２４】上記超音波照射に用いる超音波としては、
通常２０〜５００ＫＨｚのものが使用され、中でも２０
〜４０ＫＨｚの超音波が好適に用いられる。The ultrasonic waves used for the ultrasonic irradiation are as follows:
Usually, a frequency of 20 to 500 KHz is used.
Ultrasound of ４０40 KHz is preferably used.

【００２５】上記防水シート（１５）としては、熱可塑
性樹脂からなるものであれば特に限定されず、軟質ポリ
塩化ビニル樹脂、ポリエチレン樹脂、ポリプロピレン樹
脂等からなるものが挙げられる。中でも、熱安定性の観
点からポリエチレン樹脂、ポリプロピレン樹脂等のオレ
フィン系樹脂シートが好適に使用される。これら防水シ
ート（１５）としては厚さが１．０〜２．０ｍｍのもの
を使用するのが一般的である。The waterproof sheet (15) is not particularly limited as long as it is made of a thermoplastic resin, and examples thereof include those made of soft polyvinyl chloride resin, polyethylene resin, polypropylene resin and the like. Among them, an olefin resin sheet such as a polyethylene resin and a polypropylene resin is preferably used from the viewpoint of thermal stability. Generally, the waterproof sheet (15) having a thickness of 1.0 to 2.0 mm is used.

【００２６】[0026]

【実施例】次に、この発明の具体的実施例について説明
する。Next, specific embodiments of the present invention will be described.

【００２７】＜実施例１＞０．５ｍｍ厚さのポリプロピ
レン樹脂シートの片面にエンボス加工を施して図１に示
すような凹凸形状を有するシートを作製し、該シートを
板面中央部に固着具挿入孔が設けられた厚さ０．６ｍ
ｍ、直径６５ｃｍのディスク状鋼板（治具本体）の片面
に積層して敷設用固定治具を得た。Example 1 One side of a polypropylene resin sheet having a thickness of 0.5 mm was embossed to produce a sheet having irregularities as shown in FIG. 0.6m thick with insertion holes
m, a disk-shaped steel plate (jig body) having a diameter of 65 cm was laminated on one surface to obtain a fixing jig for laying.

【００２８】建築物の屋上に上記敷設用固定治具を、そ
のエンボス加工面が上側になる態様で分散させて配置し
て、該固定治具の固着具挿入孔に、開脚釘からなる固着
具を挿入、貫通して、構造物の躯体に固定することによ
り固定治具を構造物上に固定した。The fixing jig for laying is scattered and arranged on the roof of a building so that the embossed surface thereof is on the upper side, and the fixing jig is fixed to the fixing jig insertion hole of the fixing jig by an open leg nail. The fixture was fixed on the structure by inserting and penetrating the fixture and fixing it to the frame of the structure.

【００２９】次いで、ポリプロピレン樹脂からなる防水
シート（厚さ１．５ｍｍ）を、固定治具が配置された構
造物を上方から被覆するように配置して張り渡した状態
で、防水シートにおける固定治具の直上位置に相当する
表面（照射対象面）に超音波ホーンを載置し、押圧しな
がら超音波（４０ＫＨｚ）を照射して、固定治具と防水
シートの所要領域を溶着接合した。Next, a waterproofing sheet (1.5 mm thick) made of polypropylene resin is placed and stretched so as to cover the structure on which the fixing jig is disposed from above, and fixed on the waterproofing sheet. An ultrasonic horn was placed on the surface (irradiation target surface) corresponding to the position directly above the fixture, and ultrasonic waves (40 KHz) were irradiated while pressing, so that the required area of the fixing jig and the waterproof sheet were welded and joined.

【００３０】敷設施工完了後、敷設された防水シートの
上面の外観を観察したところ、溶融凹部（溶融跡）の発
生はなく、その表面は平坦性に優れ良好な外観体裁を呈
していた。更に、敷設施工完了後３０日を経過した時の
防水シートの外観を調べたところ、同様に良好な外観体
裁を呈していた。After completion of the laying work, the appearance of the upper surface of the laid waterproof sheet was observed. As a result, there was no occurrence of a molten concave portion (a trace of melting), and the surface was excellent in flatness and exhibited a good appearance. Further, when the appearance of the waterproof sheet was examined 30 days after the completion of the laying work, the appearance of the waterproof sheet was similarly excellent.

【００３１】[0031]

【発明の効果】以上のように、この発明の防水シート敷
設用固定治具は、防水シートとの接合面となる被覆樹脂
層表面が凹凸形状に形成されていることにより、この固
定治具と防水シートとの当接面積が従来よりも小さくな
るので、同強度の超音波を与えても該当接部分において
一段と大きな熱エネルギーを発生させることができ、固
定治具と防水シートとの溶着接合が完了するまでに要す
る時間を短縮することができる。従って、固定治具と防
水シートとの溶着接合が完了するまでに進行する防水シ
ートの当接上層部（超音波装置と当接する上層部）の溶
融の程度を従来と比較して相対的に小さくすることがで
きるから、敷設後の防水シート表面における溶融凹部の
発生を効果的に防止することができる。As described above, the fixing jig for laying the waterproof sheet according to the present invention has a concave-convex shape on the surface of the coating resin layer which is a bonding surface with the waterproof sheet. Since the contact area with the waterproof sheet is smaller than before, even if ultrasonic waves of the same intensity are applied, it is possible to generate even greater heat energy at the corresponding contact portion, and the welding joint between the fixing jig and the waterproof sheet can be performed. The time required to complete can be reduced. Therefore, the degree of fusion of the upper contact portion of the waterproof sheet (the upper contact portion with the ultrasonic device) that progresses until the welding and joining of the fixing jig and the waterproof sheet is completed is relatively small as compared with the related art. Therefore, it is possible to effectively prevent the occurrence of the molten concave portion on the surface of the waterproof sheet after the laying.

【００３２】また、この発明の防水シートの敷設方法
は、上記固定治具を用いて超音波によって固定治具と防
水シートとを溶着接合するものであるから、上記と同じ
理由により、固定治具と防水シートとの溶着接合が完了
するまでに進行する防水シートの当接上層部の溶融の程
度を従来と比較して相対的に小さくすることができるか
ら、敷設後の防水シート表面における溶融凹部の発生を
効果的に防止することができ、防水シート表面の外観体
裁を良好に敷設施工することができる。しかも、溶融凹
部が発生しないことで、敷設施工後の防水シートはいか
なる部分においても所望の厚さを確保することができる
ので、施工後において優れた防水性能及び優れた耐久性
能を確保することができる。更に、前述のとおり溶着接
合を完了させるまでに要する時間を短縮できるから、敷
設効率を大きく向上させることができ、敷設コストを低
減することができる。In the method for laying a waterproof sheet according to the present invention, the fixing jig and the waterproof sheet are welded and joined by ultrasonic waves using the fixing jig. Therefore, the fixing jig is used for the same reason as described above. The degree of fusion of the upper layer portion of the waterproof sheet that progresses until the welding and joining of the waterproof sheet and the waterproof sheet is completed can be made relatively small as compared with the conventional method, so that the molten concave portion on the waterproof sheet surface after laying Can be effectively prevented, and the appearance of the surface of the waterproof sheet can be laid and satisfactorily laid. In addition, since the molten concave portion does not occur, the waterproof sheet after laying can secure a desired thickness in any part, so that it is possible to secure excellent waterproof performance and excellent durability after construction. it can. Further, as described above, since the time required for completing the welding can be reduced, the installation efficiency can be greatly improved, and the installation cost can be reduced.

【００３３】上記において、敷設用固定治具と防水シー
トの当接面積が、前記超音波照射を行う装置の照射面と
防水シートとの当接面積よりも小さくなされている場合
には、防水シートの当接上層部の溶融の程度を一段と小
さくすることができるので、敷設後の防水シート表面の
外観体裁を一層良好に施工することができると共に、敷
設効率も一層向上させることができる。In the above, if the contact area between the laying fixture and the waterproof sheet is smaller than the contact area between the irradiation surface of the ultrasonic irradiation device and the waterproof sheet, the waterproof sheet may be used. Therefore, the degree of melting of the contact upper layer portion can be further reduced, so that the appearance of the surface of the waterproof sheet after laying can be more excellently constructed, and the laying efficiency can be further improved.

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

【図１】この発明の一実施形態に係る防水シート敷設用
固定治具を示す図であって、（イ）は上面図、（ロ）は
（イ）におけるＡ−Ａ線での端面図である。FIG. 1 is a view showing a fixing jig for laying a waterproof sheet according to an embodiment of the present invention, wherein (a) is a top view and (b) is an end view along line AA in (a). is there.

【図２】別の実施形態に係る固定治具を示す図であっ
て、（イ）は上面図、（ロ）は（イ）におけるＢ−Ｂ線
での端面図である。FIGS. 2A and 2B are views showing a fixing jig according to another embodiment, wherein FIG. 2A is a top view and FIG. 2B is an end view taken along line BB in FIG.

【図３】更に別の実施形態に係る固定治具を示す図であ
って、（イ）は上面図、（ロ）は（イ）におけるＣ−Ｃ
線での端面図である。FIG. 3 is a view showing a fixing jig according to still another embodiment, wherein (A) is a top view, and (B) is a CC in (A).
It is an end elevation in a line.

【図４】更に別の実施形態に係る固定治具を示す図であ
って、（イ）は上面図、（ロ）は（イ）におけるＤ−Ｄ
線での端面図である。FIG. 4 is a view showing a fixing jig according to still another embodiment, wherein (A) is a top view and (B) is a DD in (A).
It is an end elevation in a line.

【図５】超音波照射直前の状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state immediately before ultrasonic irradiation.

【図６】防水シート敷設後の状態を示す斜視図である。FIG. 6 is a perspective view showing a state after a waterproof sheet is laid.

【図７】図（イ）は従来の敷設方法における超音波照射
時の状態を示す断面図、図（ロ）は同じく敷設施工後の
防水シートの断面図である。FIG. 7 (a) is a cross-sectional view showing a state at the time of ultrasonic irradiation in a conventional laying method, and FIG. 7 (b) is a cross-sectional view of the waterproof sheet after laying.

【符号の説明】[Explanation of symbols]

１…敷設用固定治具 ２…治具本体 ３…被覆樹脂層 ３ａ…突起 １１…構造物 １５…防水シート ２０…超音波照射装置 DESCRIPTION OF SYMBOLS 1 ... Laying fixing jig 2 ... Jig main body 3 ... Coating resin layer 3a ... Projection 11 ... Structure 15 ... Waterproof sheet 20 ... Ultrasonic irradiation device

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 熱可塑性樹脂からなる防水シートを防水
すべき構造物に接合固定するために用いられるものであ
って、鋼板等の板材の少なくとも片面に熱可塑性樹脂が
被覆されてなり、該被覆樹脂層と防水シートとが超音波
照射により溶融して相互に溶着されて接合がなされる防
水シート敷設用固定治具において、 前記防水シートとの接合面となる被覆樹脂層表面が凹凸
形状に形成されていることを特徴とする防水シート敷設
用固定治具。1. A method for joining and fixing a waterproof sheet made of a thermoplastic resin to a structure to be waterproofed, wherein at least one surface of a plate material such as a steel plate is coated with the thermoplastic resin. In a fixing jig for laying a waterproof sheet in which a resin layer and a waterproof sheet are melted by ultrasonic irradiation and welded to each other to be joined, the surface of the coating resin layer serving as a joint surface with the waterproof sheet is formed in an uneven shape. A fixing jig for laying a waterproof sheet, which is characterized in that: 【請求項２】 構造物の防水すべき表面に、鋼板等の板
材の少なくとも片面に熱可塑性樹脂が被覆されてなる敷
設用固定治具を、該被覆樹脂層が上になる態様で配置し
て前記構造物に固定した後、熱可塑性樹脂からなる防水
シートを前記構造物上に張り渡して該防水シートの上か
ら超音波を照射して前記固定治具と防水シートとが当接
した樹脂部分を溶融させて固定治具と防水シートとを溶
着接合する防水シートの敷設方法において、 前記敷設用固定治具における防水シートとの接合面とな
る被覆樹脂層表面が凹凸形状に形成されていることを特
徴とする防水シートの敷設方法。2. A laying fixing jig in which at least one surface of a plate material such as a steel plate is coated with a thermoplastic resin on a surface of a structure to be waterproofed, in such a manner that the coating resin layer is disposed on the fixing jig. After fixing to the structure, a waterproof sheet made of a thermoplastic resin is stretched over the structure, and ultrasonic waves are irradiated from above the waterproof sheet, and a resin portion where the fixing jig and the waterproof sheet abut on each other. In the method for laying a waterproof sheet for melting and welding the fixing jig and the waterproof sheet, the surface of the coating resin layer serving as a joint surface with the waterproof sheet in the fixing jig for laying is formed in an uneven shape. A method of laying a waterproof sheet, characterized by the following. 【請求項３】 前記敷設用固定治具と防水シートの当接
面積が、前記超音波照射を行う装置の照射面と防水シー
トとの当接面積よりも小さくなされている請求項２に記
載の防水シートの敷設方法。3. The waterproof sheet according to claim 2, wherein the contact area between the laying fixture and the waterproof sheet is smaller than the contact area between the irradiation surface of the ultrasonic irradiation device and the waterproof sheet. How to lay a waterproof sheet.
JP35732898A 1998-12-16 1998-12-16 Waterproof sheet laying fixing jig and laying method for waterproof sheet Pending JP2000179103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35732898A JP2000179103A (en) 1998-12-16 1998-12-16 Waterproof sheet laying fixing jig and laying method for waterproof sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
JP2000179103A true JP2000179103A (en) 2000-06-27

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ID=18453565

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