JP6130089B1 - Method of covering the opening of the first part with the second part - Google Patents

Method of covering the opening of the first part with the second part Download PDF

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JP6130089B1
JP6130089B1 JP2017033527A JP2017033527A JP6130089B1 JP 6130089 B1 JP6130089 B1 JP 6130089B1 JP 2017033527 A JP2017033527 A JP 2017033527A JP 2017033527 A JP2017033527 A JP 2017033527A JP 6130089 B1 JP6130089 B1 JP 6130089B1
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opening
region
sealing agent
rivet holes
adhesive
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JP2018138733A (en
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好弘 丸茂
好弘 丸茂
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SHINWA TECHNOS CO., LTD.
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SHINWA TECHNOS CO., LTD.
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Priority to TW107106133A priority patent/TWI752173B/en
Priority to PCT/JP2018/006887 priority patent/WO2018155673A1/en
Priority to KR1020187035374A priority patent/KR102140883B1/en
Priority to CN201880002342.3A priority patent/CN109311077B/en
Publication of JP2018138733A publication Critical patent/JP2018138733A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B77/00—Kitchen cabinets
    • A47B77/04—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts
    • A47B77/06—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts for incorporating sinks, with or without draining boards, splash-backs, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/48—Devices for caulking rivets
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/18—Sinks, whether or not connected to the waste-pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Sealing Material Composition (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Combinations Of Kitchen Furniture (AREA)

Abstract

【課題】開口部を有し、当該開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法において、十分な接合強度を維持しつつ開口部を完全に気密に塞ぐことができる方法を提供すること。【解決手段】本発明は、接着剤を塗布する塗布工程と、位置決めしながら接合する接合工程と、リベットを用いる締結工程と、第２部品の露出面と開口部の全周とが近接する領域にシーリング剤を塗布して当該開口部の全周を気密に塞ぐ密封工程と、を備える。接着剤は、アクリル系接着剤であり、シーリング剤は、ウレタン系シーリング剤である。【選択図】図８A metal first part having an opening and having a plurality of first rivet holes in a first region at the periphery of the opening, and a shape that covers the opening of the first part from one side. And having a second region corresponding to the first region, and having a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. To provide a method in which two parts are bonded to each other, and an opening can be completely airtightly closed while maintaining a sufficient bonding strength. The present invention provides an application step of applying an adhesive, a bonding step of bonding while positioning, a fastening step of using a rivet, and an area where the exposed surface of the second part and the entire circumference of the opening are close to each other. And a sealing step of applying a sealing agent to the entire periphery of the opening in an airtight manner. The adhesive is an acrylic adhesive, and the sealing agent is a urethane sealing agent. [Selection] Figure 8

Description

本発明は、第１部品の開口部を第２部品で覆う方法に関している。特には、本発明は、開口部を有し、当該開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法に関している。   The present invention relates to a method of covering an opening of a first part with a second part. In particular, the present invention has a metal first part having an opening and a plurality of first rivet holes in a first region on the periphery of the opening, and the opening of the first part on one side. A second region corresponding to the first region, and a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component. The present invention relates to a method for joining the second metal parts.

まず、開口部を有し、当該開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法の従来技術について説明する。   First, a metal first part having an opening and having a plurality of first rivet holes in a first region on the periphery of the opening, and a shape that covers the opening of the first part from one side. The second region made of metal having a second region corresponding to the first region, and having a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. The prior art of a method for joining parts to each other will be described.

特許文献１は、リベットと接着剤とを併用する接合方法を開示している。特許文献１に開示された技術を応用すれば、前記第１部品と前記第２部品との接合は、以下の工程によって実現できる。   Patent document 1 is disclosing the joining method which uses a rivet and an adhesive together. If the technique disclosed in Patent Document 1 is applied, the joining of the first component and the second component can be realized by the following steps.

すなわち、（ｉ）互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部に接着剤を塗布する塗布工程、（ｉｉ）前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面を接合する接合工程、及び、（ｉｉｉ）前記接合工程の後で、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットを用いて前記第１部品及び前記第２部品を互いに対して締結する締結工程、である。   That is, (i) applying an adhesive to at least a part of at least one of the one side surface of the first region of the first component and the other side surface of the second region of the second component facing each other; (Ii) positioning the first part and the second part with respect to each other while positioning the first part of the first part of the first part and the other part of the second part of the second part. (Iii) after the joining step, each of the plurality of first rivet holes of the first part and the plurality of second rivet holes of the second part corresponding to each other. A fastening step of fastening the first part and the second part to each other using a rivet that penetrates the set in common.

これらの工程を介しての前記第１部品と前記第２部品との接合は、特許文献１に説明されているように、熟練技術者を必要とする溶接作業による接合と同程度の剛性強度を実現し、また、溶接作業による接合よりも優れた耐震性（共振特性）を実現できる。   As described in Patent Document 1, the joining of the first part and the second part through these processes has the same rigidity and strength as the joining by welding work that requires a skilled engineer. It is possible to realize the seismic resistance (resonance characteristic) superior to the joining by welding work.

特開平８−３１７５１４JP-A-8-317514

前述の工程を介しての接合だけでは、開口部を完全に気密に塞ぐことはできない。本件発明者は、そのような用途のために、接合後の開口部に更にシーリング剤を適用することについて、鋭意検討を重ねてきた。   The opening cannot be completely hermetically sealed only by joining through the above-described steps. The present inventor has intensively studied to apply a sealing agent to the opening after joining for such applications.

金属製の部品を接合する際に汎用されている接着剤としては、エポキシ系接着剤がある。しかしながら、本件発明者による各種の試行実験によれば、エポキシ系接着剤は、シーリング剤が混入するような環境下では十分な接着強度を実現できないことが分かった。   As an adhesive widely used for joining metal parts, there is an epoxy adhesive. However, according to various trial experiments by the present inventors, it has been found that the epoxy adhesive cannot realize a sufficient adhesive strength in an environment in which a sealing agent is mixed.

本発明は、以上の知見に基づいて創案されたものである。本発明の目的は、開口部を有し、当該開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法において、十分な接合強度を維持しつつ開口部を完全に気密に塞ぐことができる方法を提供することである。   The present invention has been created based on the above findings. An object of the present invention is to provide a metal first part having an opening and having a plurality of first rivet holes in a first region around the opening, and the opening of the first part from one side. A metal having a covering shape, a second region corresponding to the first region, and a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. In a method of joining a second part made of metal to each other, it is an object of the present invention to provide a method capable of completely and airtightly closing an opening while maintaining sufficient joint strength.

本発明は、開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法であって、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部に接着剤を塗布する塗布工程と、前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面を接合する接合工程と、前記接合工程の後で、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットを用いて前記第１部品及び前記第２部品を互いに対して締結する締結工程と、前記開口部を介して前記第２部品の前記他方側に露出する面と前記開口部の全周とが近接する領域にシーリング剤を塗布して前記開口部の全周を気密に塞ぐ密封工程と、を備え、前記接着剤は、アクリル系接着剤であり、前記シーリング剤は、ウレタン系シーリング剤であることを特徴とする方法である。   The present invention has a first part made of metal having an opening and a plurality of first rivet holes in a first region at the periphery of the opening, and a shape that covers the opening of the first part from one side. A second region corresponding to the first region, and a second region having a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component. A second part is joined to each other, wherein at least one of the one side surface of the first region of the first part and the other side surface of the second region of the second part facing each other. An application step of applying an adhesive to at least a part of the first part and the second part of the first part of the first part while positioning the first part and the second part with respect to each other; A bonding step of bonding the other surface of the second region; After the joining step, the first part is formed using a rivet that commonly passes through each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part. A fastening step for fastening the component and the second component to each other; and a sealing agent in a region where the surface exposed to the other side of the second component and the entire circumference of the opening are close to each other through the opening. And a sealing step of airtightly closing the entire periphery of the opening, wherein the adhesive is an acrylic adhesive, and the sealing agent is a urethane sealing agent. is there.

本発明によれば、接合後の開口部に更にシーリング剤を適用することで（密封工程）、開口部を完全に気密に塞ぐことができる。本件発明者は、気密に塞がれた開口部について、１０００Ｐａの空気圧力下でもリークが生じないことを確認している。そして、接着剤としてアクリル系接着剤を採用したことにより、シーリング剤の混入が接着強度に有意な悪影響を及ぼすことがない。また、アクリル系接着剤は、エポキシ系接着剤よりも耐衝撃性に優れるという特性も有している。   According to the present invention, by further applying a sealing agent to the opening after joining (sealing process), the opening can be completely airtightly closed. The inventors of the present invention have confirmed that no leak occurs even under an air pressure of 1000 Pa in the airtightly closed opening. And since the acrylic adhesive is employed as the adhesive, the mixing of the sealing agent does not have a significant adverse effect on the adhesive strength. Acrylic adhesives also have the property of being superior in impact resistance than epoxy adhesives.

更に、シーリング剤としてウレタン系シーリング剤を採用したことにより、十分な気密性に加えて十分な耐久性をも実現することができる。シーリング剤としては、シリコーン系シーリング剤もよく知られているが、本件発明者による各種の試行実験によれば、アクリル系接着剤を用いた接合工程後にシリコーン系シーリング剤を併用した場合、ウレタン系シーリング剤と比較して十分な接着強度を実現できないことが分かった。   Furthermore, by adopting the urethane-based sealing agent as the sealing agent, it is possible to realize sufficient durability in addition to sufficient airtightness. As a sealing agent, a silicone-based sealing agent is also well known, but according to various trial experiments by the present inventors, when a silicone-based sealing agent is used in combination after a joining step using an acrylic adhesive, a urethane-based sealing agent is used. It was found that sufficient adhesive strength could not be realized compared with the sealing agent.

例えば、前記接着剤（アクリル系接着剤）は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有していることが好ましい。   For example, the adhesive (acrylic adhesive) preferably contains 40 to 50% methyl methacrylate and 20 to 40% methacrylic acid esters including 2-ethylhexyl methacrylate.

また、例えば、前記シーリング剤（ウレタン系シーリング剤）は、ウレタンプレポリマーを２０〜３０％含有していることが好ましい。   For example, it is preferable that the sealing agent (urethane-based sealing agent) contains 20 to 30% of a urethane prepolymer.

また、前記接合工程では、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔のうちの少なくとも１つの組を共通に貫通する棒状部材を用いて前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面が接合されることが好ましい。   Further, in the joining step, a rod-like member that commonly passes through at least one set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part is used. The first part and the second part are positioned relative to each other, and the one side surface of the first part of the first part and the other side surface of the second part of the second part are joined together. It is preferred that

また、本発明は、以上の方法によって製造された構造体である。すなわち、本発明は、開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、が接合されてなる構造体であって、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部上の接着剤と、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットと、前記開口部を介して前記第２部品の前記他方側に露出する面と前記開口部の全周とが近接する領域に塗布されたシーリング剤と、を備え、前記シーリング剤によって前記開口部の全周が気密に塞がれていて、１０００Ｐａの空気圧力下でもリークがないことを特徴とする構造体である。   Moreover, this invention is the structure manufactured by the above method. That is, the present invention provides a metal first part having an opening and a plurality of first rivet holes in a first region around the opening, and the opening of the first part from one side. A metal having a covering shape, a second region corresponding to the first region, and a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. And a second body made of the first part of the first part of the first part and the second part of the second part of the second part facing each other. An adhesive on at least a part of at least one of the first part and the corresponding pair of the plurality of first rivet holes of the first part and the plurality of second rivet holes of the second part. And on the other side of the second part through the opening A sealing agent applied to a region where the exit surface and the entire circumference of the opening are close to each other, and the entire circumference of the opening is hermetically closed by the sealing agent under an air pressure of 1000 Pa However, it is a structure characterized by no leakage.

前述のように、前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有していることが好ましく、また、前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有していることが好ましい。この場合、前記シーリング剤による前記開口部におけるアウトガス性能は、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下、他の成分の増分は０．２μｇ／ｍ3 以下、を実現することができる。 As described above, the adhesive preferably contains 40 to 50% of methyl methacrylate and 20 to 40% of methacrylic acid esters including 2-ethylhexyl methacrylate, and the sealing agent. Preferably contains 20-30% urethane prepolymer. In this case, the outgas performance in the opening by the sealing agent can be realized such that the increment of methacrylic acid esters is 1 μg / m 3 or less and the increment of other components is 0.2 μg / m 3 or less.

一例として、当該構造体は、流し台である。   As an example, the structure is a sink.

あるいは、本発明は、開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、を互いに接合する方法であって、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面の前記開口部側及び前記第２部品の前記第２領域の他方側の面の前記開口部側の少なくとも一方の少なくとも一部にシーリング剤を塗布する第１塗布工程と、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の前記シーリング剤が塗布されていない少なくとも一部に接着剤を塗布する第２塗布工程と、前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面を接合しつつ前記シーリング剤を前記開口部の全周に行き渡らせる接合工程と、前記接合工程の後で、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットを用いて前記第１部品及び前記第２部品を互いに対して締結する締結工程と、を備え、前記接着剤は、アクリル系接着剤であり、前記シーリング剤は、ウレタン系シーリング剤であることを特徴とする方法である。   Alternatively, the present invention provides a metal first part having an opening and having a plurality of first rivet holes in a first region around the opening, and the opening of the first part from one side. A metal having a covering shape, a second region corresponding to the first region, and a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. A second part made of metal, and the second part of the second part of the first part and the other part of the second part of the first part of the first part facing each other. A first application step of applying a sealing agent to at least a part of at least one of the side surfaces on the opening side, and the one side surface of the first region of the first part and the second part of the second part facing each other. At least one of the surfaces on the other side of the second region. A second application step of applying an adhesive to at least a portion of the sealant not applied, and the first region of the first part while positioning the first part and the second part relative to each other. A bonding step of spreading the sealing agent over the entire circumference of the opening while bonding the one side surface and the other side surface of the second region of the second part; Using the rivet that penetrates each set of the plurality of first rivet holes of the first part and the plurality of second rivet holes of the second part in common, the first part and the second part with respect to each other And a fastening step of fastening, wherein the adhesive is an acrylic adhesive, and the sealing agent is a urethane sealing agent.

本発明によれば、接合前の開口部に予めシーリング剤を適用しておくことで（第１塗布工程）、開口部を完全に気密に塞ぐことができる。本件発明者は、気密に塞がれた開口部について、１０００Ｐａの空気圧力下でもリークが生じないことを確認している。そして、接着剤としてアクリル系接着剤を採用したことにより、シーリング剤の混入が接着強度に有意な悪影響を及ぼすことがない。また、アクリル系接着剤は、エポキシ系接着剤よりも耐衝撃性に優れるという特性も有している。   According to the present invention, by applying a sealing agent in advance to the opening before joining (first application step), the opening can be completely airtightly closed. The inventors of the present invention have confirmed that no leak occurs even under an air pressure of 1000 Pa in the airtightly closed opening. And since the acrylic adhesive is employed as the adhesive, the mixing of the sealing agent does not have a significant adverse effect on the adhesive strength. Acrylic adhesives also have the property of being superior in impact resistance than epoxy adhesives.

更に、シーリング剤としてウレタン系シーリング剤を採用したことにより、十分な気密性に加えて十分な耐久性をも実現することができる。シーリング剤としては、シリコーン系シーリング剤もよく知られているが、本件発明者による各種の試行実験によれば、アクリル系接着剤を用いた接合工程後にシリコーン系シーリング剤を併用した場合、ウレタン系シーリング剤と比較して十分な接着強度を実現できないことが分かった。   Furthermore, by adopting the urethane-based sealing agent as the sealing agent, it is possible to realize sufficient durability in addition to sufficient airtightness. As a sealing agent, a silicone-based sealing agent is also well known, but according to various trial experiments by the present inventors, when a silicone-based sealing agent is used in combination after a joining step using an acrylic adhesive, a urethane-based sealing agent is used. It was found that sufficient adhesive strength could not be realized compared with the sealing agent.

例えば、前記接着剤（アクリル系接着剤）は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有していることが好ましい。   For example, the adhesive (acrylic adhesive) preferably contains 40 to 50% methyl methacrylate and 20 to 40% methacrylic acid esters including 2-ethylhexyl methacrylate.

また、例えば、前記シーリング剤（ウレタン系シーリング剤）は、ウレタンプレポリマーを２０〜３０％含有していることが好ましい。   For example, it is preferable that the sealing agent (urethane-based sealing agent) contains 20 to 30% of a urethane prepolymer.

また、前記接合工程では、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔のうちの少なくとも１つの組を共通に貫通する棒状部材を用いて前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面が接合されることが好ましい。   Further, in the joining step, a rod-like member that commonly passes through at least one set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part is used. The first part and the second part are positioned relative to each other, and the one side surface of the first part of the first part and the other side surface of the second part of the second part are joined together. It is preferred that

また、本発明は、以上の方法によって製造された構造体である。すなわち、本発明は、開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、が接合されてなる構造体であって、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面の前記開口部側及び前記第２部品の前記第２領域の他方側の面の前記開口部側の少なくとも一方の少なくとも一部上のシーリング剤と、互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部上の接着剤と、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットと、を備え、前記シーリング剤によって前記開口部の全周が気密に塞がれていて、１０００Ｐａの空気圧力下でもリークがないことを特徴とする構造体である。   Moreover, this invention is the structure manufactured by the above method. That is, the present invention provides a metal first part having an opening and a plurality of first rivet holes in a first region around the opening, and the opening of the first part from one side. A metal having a covering shape, a second region corresponding to the first region, and a plurality of second rivet holes respectively corresponding to the plurality of first rivet holes of the first component in the second region. And a second part of the second part and the second part of the first part of the first part of the first part facing each other. A sealing agent on at least a part of at least one of the other side surfaces of the first part, the one side surface of the first region of the first part and the second region of the second part facing each other. On at least a portion of at least one of the other side surfaces of An adhesive, and a rivet that penetrates each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part in common, by the sealing agent The structure is characterized in that the entire circumference of the opening is hermetically closed and there is no leakage even under an air pressure of 1000 Pa.

前述のように、前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有していることが好ましく、また、前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有していることが好ましい。この場合、前記シーリング剤による前記開口部におけるアウトガス性能は、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下、他の成分の増分は０．２μｇ／ｍ3 以下、を実現することができる。 As described above, the adhesive preferably contains 40 to 50% of methyl methacrylate and 20 to 40% of methacrylic acid esters including 2-ethylhexyl methacrylate, and the sealing agent. Preferably contains 20-30% urethane prepolymer. In this case, the outgas performance in the opening by the sealing agent can be realized such that the increment of methacrylic acid esters is 1 μg / m 3 or less and the increment of other components is 0.2 μg / m 3 or less.

一例として、当該構造体は、流し台である。   As an example, the structure is a sink.

本発明によれば、接合後の開口部に更にシーリング剤を適用することで（密封工程）、開口部を気密に塞ぐことができる。あるいは、本発明によれば、接合前の開口部に予めシーリング剤を適用しておくことで（第１塗布工程）、開口部を完全に気密に塞ぐことができる。そして、接着剤としてアクリル系接着剤を採用したことにより、シーリング剤の混入が接着強度に有意な悪影響を及ぼすことがない。また、アクリル系接着剤は、エポキシ系接着剤よりも耐衝撃性に優れるという特性も有している。   According to the present invention, the opening can be hermetically closed by further applying a sealing agent to the opening after joining (sealing step). Or according to this invention, an opening part can be completely airtightly closed by applying a sealing agent to the opening part before joining previously (1st application | coating process). And since the acrylic adhesive is employed as the adhesive, the mixing of the sealing agent does not have a significant adverse effect on the adhesive strength. Acrylic adhesives also have the property of being superior in impact resistance than epoxy adhesives.

更に、シーリング剤としてウレタン系シーリング剤を採用したことにより、十分な気密性に加えて十分な耐久性をも実現することができる。アクリル系接着剤を用いた接合工程後にシリコーン系シーリング剤を併用した場合、ウレタン系シーリング剤と比較して十分な接着強度を実現できない。   Furthermore, by adopting the urethane-based sealing agent as the sealing agent, it is possible to realize sufficient durability in addition to sufficient airtightness. When a silicone sealing agent is used in combination after the joining step using an acrylic adhesive, sufficient adhesive strength cannot be realized as compared with a urethane sealing agent.

本発明の一実施形態に係る接合前の第１部品と第２部品とを示す概略斜視図である。It is a schematic perspective view which shows the 1st components and 2nd components before joining which concern on one Embodiment of this invention. 本発明の一実施形態に係る接合後の第１部品と第２部品とを内側から見た概略斜視図である。It is the schematic perspective view which looked at the 1st component and 2nd component after joining which concern on one Embodiment of this invention from the inner side. 本発明の一実施形態に係る接合後の第１部品及び第２部品について、リーク特性の試験結果を示す図表である。It is a graph which shows the test result of a leak characteristic about the 1st components and 2nd components after joining which concern on one Embodiment of this invention. 好適な接着剤の特性例を示す図表である。It is a graph which shows the example of a characteristic of a suitable adhesive agent. 好適な接着剤の組成例を示す図表である。It is a graph which shows the composition example of a suitable adhesive agent. 好適な接着剤の他の組成例を示す図表である。It is a graph which shows the other composition example of a suitable adhesive agent. 引張り試験で用いたテストピースの概略平面図である。It is a schematic plan view of the test piece used in the tensile test. 引張り試験の結果を示す図表である。It is a graph which shows the result of a tension test. 本発明の他の実施形態に係る接合前の第１部品と第２部品とを示す概略斜視図である。It is a schematic perspective view which shows the 1st component and 2nd component before joining which concern on other embodiment of this invention.

以下、図面を参照して本発明の実施の形態について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、本発明の一実施形態に係る接合前の第１部品と第２部品とを示す概略斜視図であり、図２は、接合後の当該第１部品及び当該第２部品を内側から見た概略斜視図である。   FIG. 1 is a schematic perspective view showing a first part and a second part before joining according to an embodiment of the present invention, and FIG. 2 shows the first part and the second part after joining from the inside. FIG.

図１に示すように、本実施形態における第１部品１０は、平面視で互いに相似形である正方形状の外周と内周とを有し、当該内周が上方側に開口する正方形状の開口部１８を規定しているステンレス鋼等の金属製の薄板部材（板金）である上板部材１２と、当該上面部材１２の４個（４辺）の周面（周縁）の各々に溶接された４個の金属製の側板部材１５と、から構成されている。   As shown in FIG. 1, the first component 10 in the present embodiment has a square outer periphery and an inner periphery that are similar to each other in plan view, and the inner periphery opens upward. The upper plate member 12, which is a metal thin plate member (sheet metal) such as stainless steel that defines the portion 18, and each of the four peripheral surfaces (peripheries) of the upper surface member 12 are welded. 4 side plate members 15 made of metal.

図１に図示された例では、各側板部材１５は上板部材１２と同一形態で構成されている（各側方側に開口する正方形状の開口部を規定している）が、各側板部材１５の形態は何ら限定されない。また、図１に図示された例では、各側板部材１５は上板部材１２に溶接されているが、上板部材１２と一体的に構成されて曲げ加工されてもよい。上板部材１２の素材は、アルミニウム、真鍮、銅、冷間圧延鋼板、軟鋼、ブリキ、ニッケル、チタン、亜鉛めっき鋼板、トタン、等である。   In the example illustrated in FIG. 1, each side plate member 15 is configured in the same form as the upper plate member 12 (which defines a square opening that opens to each side), but each side plate member The form of 15 is not limited at all. Further, in the example illustrated in FIG. 1, each side plate member 15 is welded to the upper plate member 12, but may be integrally formed with the upper plate member 12 and bent. The material of the upper plate member 12 is aluminum, brass, copper, cold rolled steel plate, mild steel, tinplate, nickel, titanium, galvanized steel plate, tin, or the like.

また、第１部品１０の開口部１８の周縁の領域（第１領域）である上板部材１２に、図１に示すように、８個の上下方向に貫通する第１リベット孔１４が略均等配置されている。   Further, as shown in FIG. 1, eight first rivet holes 14 penetrating in the vertical direction are substantially equal in the upper plate member 12 which is a peripheral region (first region) of the opening 18 of the first component 10. Has been placed.

一方、図１に示すように、本実施形態における第２部品２０は、第１部品１０の開口部１８を上方側から覆う形状を有するステンレス鋼等の金属製の薄板部材（板金）であり、第１領域である上板部材１２に対応する第２領域２２を有しており、当該第２領域２２に第１部品１０の８個の第１リベット孔１４にそれぞれ対応する８個の第２リベット孔２４が設けられている。   On the other hand, as shown in FIG. 1, the second component 20 in the present embodiment is a metal thin plate member (sheet metal) such as stainless steel having a shape that covers the opening 18 of the first component 10 from above. The first region has a second region 22 corresponding to the upper plate member 12, and the second region 22 has eight second rivets 14 respectively corresponding to the eight first rivet holes 14 of the first component 10. Rivet holes 24 are provided.

図１に図示された例では、第２部品２０の中央領域に配管等のための丸孔が設けられているが、その有無ないし形状は任意である。第２部品２０の素材も、アルミニウム、真鍮、銅、冷間圧延鋼板、軟鋼、ブリキ、ニッケル、チタン、亜鉛めっき鋼板、トタン、等である。   In the example illustrated in FIG. 1, a round hole for piping or the like is provided in the central region of the second component 20, but the presence or absence or shape thereof is arbitrary. The material of the second component 20 is also aluminum, brass, copper, cold rolled steel plate, mild steel, tinplate, nickel, titanium, galvanized steel plate, tin, or the like.

本実施形態によれば、以上のような第１部品１０及び第２部品２０が、以下の工程に従って接合される。   According to the present embodiment, the first component 10 and the second component 20 as described above are bonded according to the following steps.

まず、互いに向かい合う第１部品１０の上面部材１２（第１領域）の上方側の面及び第２部品２０の第２領域２２の下方側の面の少なくとも一方の少なくとも一部に、アクリル系接着剤が塗布される（塗布工程）。   First, an acrylic adhesive is applied to at least a part of at least one of the upper surface of the upper surface member 12 (first region) of the first component 10 and the lower surface of the second region 22 of the second component 20 facing each other. Is applied (application process).

次に、第１部品１０及び第２部品２０を互いに対して位置決めしながら、互いに向かい合う第１部品１０の上面部材１２（第１領域）の上方側の面と第２部品２０の第２領域２２の下方側の面とを接合する（接合工程）。   Next, while positioning the first component 10 and the second component 20 with respect to each other, the upper surface of the upper surface member 12 (first region) of the first component 10 facing each other and the second region 22 of the second component 20. Are joined to the lower surface (joining step).

ここで、高精度な位置決めを容易に実施するために、第１部品１０の８個の第１リベット孔１４及び第２部品２０の８個の第２リベット孔２４のうちの少なくとも１つの対応する組を共通に貫通する棒状部材（穴位置合わせ棒という）を用いることが好ましい。これによれば、第１部品１０及び第２部品２０を互いに対して極めて容易に位置決めすることができ、そのような位置決め状態を維持しながら、第１部品１０の上面部材１２（第１領域）の上面と第２部品２０の第２領域２２の下面とを円滑に接合することができる。すなわち、所望の相対位置関係にて接着剤による接合を実施することができる。   Here, in order to easily perform high-precision positioning, at least one of the eight first rivet holes 14 of the first part 10 and the eight second rivet holes 24 of the second part 20 corresponds. It is preferable to use a rod-like member (referred to as a hole alignment rod) that penetrates the set in common. According to this, the first component 10 and the second component 20 can be positioned very easily with respect to each other, and the upper surface member 12 (first region) of the first component 10 is maintained while maintaining such a positioning state. And the lower surface of the second region 22 of the second component 20 can be smoothly joined. That is, bonding with an adhesive can be performed in a desired relative positional relationship.

次に、対応する第１部品１０の８個の第１リベット孔１４及び第２部品２０の８個の第２リベット孔２４の各々の組を共通に貫通するリベット３０を用いて、第１部品１０及び第２部品２０を互いに対して締結する（締結工程）。リベット３０は、例えばポップリベットファスナー株式会社が製造している型式「ＳＳＤ−４２−ＳＳＨ」であり、締結作業は、公知のリベットガンを用いて行われ得る。   Next, using the rivet 30 that penetrates each set of the eight first rivet holes 14 of the corresponding first part 10 and the eight second rivet holes 24 of the second part 20 in common, the first part 10 and the second component 20 are fastened to each other (fastening step). The rivet 30 is, for example, a model “SSD-42-SSH” manufactured by Pop Rivet Fastener Co., Ltd., and the fastening operation can be performed using a known rivet gun.

そして、開口部１８を介して下方側に露出する第２部品２０の面と、開口部１８の全周と、が近接している領域に、公知のコーキングガンでシーリング剤４０（コーキング剤ともいう）を塗布して、開口部１８の全周を気密に塞ぐ（密封工程）。シーリング剤４０を塗布した後の状態が、図２に示されている。   Then, a sealing agent 40 (also called a caulking agent) is used with a known caulking gun in a region where the surface of the second component 20 exposed downward via the opening 18 and the entire circumference of the opening 18 are close to each other. ) Is applied to hermetically close the entire circumference of the opening 18 (sealing process). The state after applying the sealing agent 40 is shown in FIG.

以上のような本実施形態によれば、接合後の開口部１８に更にシーリング剤４０を適用することで、開口部１８を完全に気密に塞ぐことができる。   According to this embodiment as described above, the opening 18 can be completely airtightly closed by further applying the sealing agent 40 to the opening 18 after joining.

アクリル系接着剤として、電気化学工業株式会社が製造している型式「ハードロック Ｍ−６００−０８Ａ」を用いて、シーリング剤４０として、日本シーカ株式会社製の型式「Ｓｉｋａｆｌｅｘ（シーカフレックス）−ＳＣＲ」を用いた場合について、開口部１８のリーク特性が実際に検査された（開口部１８は、１辺が約２５ｃｍ（図面と整合させました）の正方形であり、第１リベット孔１４及び第２リベット孔２４の直径は３．３ｍｍであり、上面部材１２の厚みは１ｍｍであり、第２部品２０の厚みは１ｍｍであり、接着剤は上面部材１２の上面の全面に塗布され上面部材１２の上面の幅（内周から外周までの幅）は３０ｍｍであった）。具体的には、検査対象領域にスヌープ液（濡れ検出液）を筆で塗布しておいて、気泡の発生の有無を目視で確認することでリークの有無を判断した。   Using “Hardlock M-600-08A” manufactured by Denki Kagaku Kogyo Co., Ltd. as the acrylic adhesive, the model “Sikaflex-SCR” manufactured by Nippon Sika Co., Ltd. is used as the sealing agent 40. ”Was actually inspected for the leakage characteristics of the opening 18 (the opening 18 is a square with one side approximately 25 cm (aligned with the drawing), the first rivet hole 14 and the second The diameter of the two rivet holes 24 is 3.3 mm, the thickness of the upper surface member 12 is 1 mm, the thickness of the second component 20 is 1 mm, and the adhesive is applied to the entire upper surface of the upper surface member 12 to be applied to the upper surface member 12. The width of the upper surface (width from the inner periphery to the outer periphery) was 30 mm). Specifically, the presence or absence of leakage was determined by applying a snoop liquid (wetting detection liquid) to the inspection target area with a brush and visually confirming the presence or absence of bubbles.

リーク特性試験の結果を図３に示す。図３に示すように、本実施形態に従って気密に塞がれた開口部１８においては、１０００Ｐａの空気圧力下でもリークが生じないことが確認された。   The result of the leak characteristic test is shown in FIG. As shown in FIG. 3, it was confirmed that no leak occurred in the opening 18 hermetically closed according to the present embodiment even under an air pressure of 1000 Pa.

また、シーリング剤４０による開口部１８におけるアウトガス性能を評価した所、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下であり、他の成分の増分は０．２μｇ／ｍ3 以下であった。 Moreover, when the outgas performance in the opening part 18 by the sealing agent 40 was evaluated, the increment of methacrylic acid ester was 1 microgram / m < 3 > or less, and the increment of the other component was 0.2 microgram / m < 3 > or less.

以上のような本実施形態は、キッチンの流し台の製造や、自動販売機の筐体の製造等に有効に活用することができる。更には、特殊環境下で使用されるダクト等の製造にも、有効に活用することができる。   The present embodiment as described above can be effectively used for manufacturing a kitchen sink, manufacturing a casing of a vending machine, and the like. Furthermore, it can be effectively used for manufacturing ducts and the like used in special environments.

電気化学工業株式会社が製造している型式「ハードロック Ｍ−６００−０８Ａ」の特性について、図４に示しておく（電気化学工業株式会社が作成した「製品安全データシート」から抜粋）。図４には、本発明において同様に好適に採用され得る型式「ハードロック Ｍ−６００−０８Ｂ」の特性をも併記されている。   The characteristics of the model “Hard Rock M-600-08A” manufactured by Denki Kagaku Kogyo Co., Ltd. are shown in FIG. 4 (extracted from “Product Safety Data Sheet” created by Kagaku Kagaku Kogyo Co., Ltd.). FIG. 4 also shows the characteristics of the type “Hard Rock M-600-08B” that can be suitably employed in the present invention.

図５は、型式「ハードロック Ｍ−６００−０８Ａ」の組成を示す図表であり、図６は、型式「ハードロック Ｍ−６００−０８Ｂ」の組成を示す図表である（電気化学工業株式会社が作成した「製品安全データシート」から抜粋）。   FIG. 5 is a chart showing the composition of the model “Hard Rock M-600-08A”, and FIG. 6 is a chart showing the composition of the model “Hard Rock M-600-08B”. (Excerpt from “Product Safety Data Sheet”)

日本シーカ株式会社が製造している型式「Ｓｉｋａｆｌｅｘ（シーカフレックス）−ＳＣＲ」の成分及び含有量は、ウレタンプレポリマーが２０〜３０％、可塑剤が２０〜３０％、顔料、充填材が４０〜５０％、溶剤が０％、添加剤、触媒等が１〜３％であり、危険有害成分は、酸化チタンで、その含有量は３〜４％である（日本シーカ株式会社が作成した「製品安全データシート」から抜粋）。   The components and content of the model “Sikaflex-SCR” manufactured by Nippon Sika Co., Ltd. are 20-30% for urethane prepolymer, 20-30% for plasticizer, and 40-40 for pigment and filler. 50%, solvent is 0%, additives, catalyst, etc. are 1 to 3%, and the hazardous component is titanium oxide, and its content is 3 to 4%. (Excerpt from Safety Data Sheet).

なお、本件発明者は、各種の試行実験を繰り返す中で、接着剤としてエポキシ系接着剤を採用するとシーリング剤４０の混入が接着強度に有意な悪影響を及ぼす一方で、接着剤としてアクリル系接着剤を採用すればシーリング剤４０が混入しても接着強度に有意な悪影響を及ぼすことがない、という知見を得た。   In addition, while this inventor repeats various trial experiments, while adopting an epoxy adhesive as an adhesive, mixing of the sealing agent 40 has a significant adverse effect on the adhesive strength, while an acrylic adhesive as an adhesive. As a result, it was found that even if the sealing agent 40 is mixed, there is no significant adverse effect on the adhesive strength.

そして、この知見を明示的に説明するべく、接着剤とシーリング剤とを積極的に混合した場合の接着強度（引張り強度）について比較実験を行った。具体的には、アクリル系接着剤として前記した電気化学工業株式会社が製造している型式「ハードロック Ｍ−６００−０８Ａ」、エポキシ系接着剤としてコニシ株式会社が製造している型式「ボンドクイック５ ＃１６１２３」、ウレタン系シーリング剤として前記した日本シーカ株式会社製の型式「Ｓｉｋａｆｌｅｘ（シーカフレックス）−ＳＣＲ」、シリコーン系シーリング剤としてセメダイン株式会社が製造している型式「バスコークＮ ＨＪ−１４６」を用いて、それぞれの組合せないし配合比率での接着強度（引張り強度）が評価された。   In order to explain this knowledge explicitly, a comparative experiment was conducted on the adhesive strength (tensile strength) when the adhesive and the sealing agent were positively mixed. Specifically, the model “Hard Rock M-600-08A” manufactured by Denki Kagaku Kogyo Co., Ltd. described above as an acrylic adhesive, and the model “Bond Quick” manufactured by Konishi Co., Ltd. as an epoxy adhesive. 5 # 16123 ”, model“ Sikaflex-SCR ”manufactured by Nihon Sika Co., Ltd. as a urethane-based sealant, and model“ Baskok N HJ-146 ”manufactured by Cemedine Co., Ltd. as a silicone-based sealant. Was used to evaluate the adhesive strength (tensile strength) at each combination or blending ratio.

引張り試験は、ＪＩＳ６８５０の試験方法に従って行われ、テストピースは、ＳＵＳ４３０から、図７に示すように、長さ１００ｍｍ、幅２５ｍｍ、厚み２ｍｍに作成され、接着部分の重ね合わせは１２．５ｍｍとされ、接着硬化時間は２４時間以上とされた。   The tensile test is performed according to the test method of JIS6850, and the test piece is made from SUS430 to a length of 100 mm, a width of 25 mm, and a thickness of 2 mm as shown in FIG. The adhesive curing time was 24 hours or longer.

図８が、引張り測定値を示す図表である。図８の実施例１〜３に示すように、アクリル系接着剤（ハードロック Ｍ−６００−０８Ａ）とウレタン系シーリング剤（シーカフレックス−ＳＣＲ）との組合せであれば、シーリング剤の混入量が３０％にまで増大しても、十分な接着強度を維持できることが分かる。   FIG. 8 is a chart showing tensile measurement values. As shown in Examples 1 to 3 in FIG. 8, if the combination of an acrylic adhesive (Hardlock M-600-08A) and a urethane sealing agent (Seacaflex-SCR) is used, the amount of the sealing agent mixed is It can be seen that sufficient adhesion strength can be maintained even when the amount is increased to 30%.

一方、図８の比較例１１〜１２に示すように、アクリル系接着剤（ハードロック Ｍ−６００−０８Ａ）とシリコーン系シーリング剤（バスコークＮ ＨＪ−１４６）との組合せの場合、シーリング剤の混入量が２０％であっても、接着強度が維持できないことが分かる。   On the other hand, as shown in Comparative Examples 11 to 12 in FIG. 8, in the case of a combination of an acrylic adhesive (Hardlock M-600-08A) and a silicone sealant (Buscoke N HJ-146), mixing of the sealant It can be seen that even if the amount is 20%, the adhesive strength cannot be maintained.

また、図８の比較例２１〜２２、３１〜３２に示すように、エポキシ系接着剤（ボンドクイック５ ＃１６１２３）が採用される場合には、ウレタン系シーリング剤（シーカフレックス−ＳＣＲ）との組合せの場合でも、シリコーン系シーリング剤（バスコークＮ ＨＪ−１４６）との組合せの場合でも、接着強度が大幅に低下する可能性があることが分かる。   In addition, as shown in Comparative Examples 21 to 22 and 31 to 32 in FIG. 8, when an epoxy adhesive (Bond Quick 5 # 16123) is employed, a urethane sealing agent (Seacaflex-SCR) is used. It can be seen that there is a possibility that the adhesive strength can be significantly reduced both in the case of combination and in the case of a combination with a silicone-based sealing agent (Vascoke N HJ-146).

ところで、第１部品１０及び／または第２部品２０の形態によっては、接合工程及び締結工程を実施した後に、密封工程を実施することが不可能ないし困難である場合も想定され得る。例えば、図１に示した実施形態において、側板部材１５が開口部を有していない場合、下側（裏側）からの施工となる密封工程は、実施が困難である。   By the way, depending on the form of the 1st component 10 and / or the 2nd component 20, after performing a joining process and a fastening process, the case where it is impossible or difficult to implement a sealing process may be assumed. For example, in the embodiment shown in FIG. 1, when the side plate member 15 does not have an opening, it is difficult to perform a sealing process that is a construction from the lower side (back side).

そのような場合に対応するべく、本件発明者は更に検討を進め、以下の実施形態が有効であることを知見した。   In order to deal with such a case, the present inventor further studied and found that the following embodiment is effective.

なお、前記実施形態に関して第１部品１０及び第２部品２０について説明した事項は、以下の実施形態においても適合する。例えば、図１に示すような形態の第１部品１０（側板部材１５が開口部を有している）及び第２部品２０に対して以下の実施形態を適合することも可能である。   In addition, the matter demonstrated about the 1st component 10 and the 2nd component 20 regarding the said embodiment is applicable also in the following embodiment. For example, the following embodiments can be applied to the first component 10 (the side plate member 15 has an opening) and the second component 20 having a configuration as shown in FIG.

本実施形態においては、まず、互いに向かい合う第１部品１０の上面部材１２（第１領域）の上方側の面の開口部側及び第２部品２０の第２領域２２の下方側の面の開口部側の少なくとも一方の少なくとも一部に、シーリング剤が塗布される。例えば、図９に示すように、第１部品１０の上面部材１２（第１領域）の上方側の面の開口部側（内側）全周に、シーリング剤が塗布される（第１塗布工程）。   In the present embodiment, first, the opening portion of the upper surface of the upper surface member 12 (first region) of the first component 10 facing each other and the opening portion of the lower surface of the second region 22 of the second component 20. A sealing agent is applied to at least a portion of at least one of the sides. For example, as shown in FIG. 9, a sealing agent is applied to the entire periphery of the opening side (inside) of the upper surface of the upper surface member 12 (first region) of the first component 10 (first application step). .

この第１塗布工程時には、所望の領域のみにシーリング剤を塗布するべく、上面部材１２（第１領域）の上方側の面の外側の領域にマスキングテープを貼って作業することが好ましい。また、シーリング剤は、スポンジ製のヘラを用いて均す（塗布後の高さが均一になる）ように塗布されることが好ましい。   In the first application step, it is preferable to apply a masking tape to a region outside the upper surface of the upper surface member 12 (first region) so as to apply the sealing agent only to a desired region. Moreover, it is preferable that the sealing agent is applied using a sponge spatula so that the height is uniform after application.

次に、マスキングテープを用いて第１塗布工程を実施した場合にはそれを剥がして、互いに向かい合う第１部品１０の上面部材１２（第１領域）の上方側の面及び第２部品２０の第２領域２２の下方側の面の少なくとも一方の前記シーリング剤が塗布されていない少なくとも一部に、アクリル系接着剤が塗布される（第２塗布工程）。   Next, when the first coating step is performed using the masking tape, the first coating step is peeled off, and the upper surface of the upper surface member 12 (first region) of the first component 10 facing each other and the second component 20 first. The acrylic adhesive is applied to at least a part of the lower surface of the two regions 22 where the sealing agent is not applied (second application step).

そして、第１部品１０及び第２部品２０を互いに対して位置決めしながら、互いに向かい合う第１部品１０の上面部材１２（第１領域）の上方側の面と第２部品２０の第２領域２２の下方側の面とを接合しつつ、シーリング剤を開口部１８の全周に行き渡らせる（接合工程）。   Then, while positioning the first component 10 and the second component 20 with respect to each other, the upper surface of the upper surface member 12 (first region) of the first component 10 and the second region 22 of the second component 20 facing each other. The sealing agent is spread over the entire circumference of the opening 18 while joining the lower surface (joining step).

ここで、前記実施形態と同様に、高精度な位置決めを容易に実施するために、第１部品１０の８個の第１リベット孔１４及び第２部品２０の８個の第２リベット孔２４のうちの少なくとも１つの対応する組を共通に貫通する棒状部材（穴位置合わせ棒という）を用いることが好ましい。これによれば、第１部品１０及び第２部品２０を互いに対して極めて容易に位置決めすることができ、そのような位置決め状態を維持しながら、第１部品１０の上面部材１２（第１領域）の上面と第２部品２０の第２領域２２の下面とを円滑に接合しつつシーリング剤を開口部１８の全周に円滑に行き渡らせることができる。すなわち、所望の相対位置関係にて接着剤による接合とシーリング剤の設置とを実施することができる。   Here, in the same manner as in the above embodiment, in order to easily perform high-precision positioning, the eight first rivet holes 14 of the first component 10 and the eight second rivet holes 24 of the second component 20 are formed. It is preferable to use a rod-like member (referred to as a hole alignment rod) that penetrates at least one of the corresponding pairs in common. According to this, the first component 10 and the second component 20 can be positioned very easily with respect to each other, and the upper surface member 12 (first region) of the first component 10 is maintained while maintaining such a positioning state. The sealing agent can be smoothly spread over the entire circumference of the opening 18 while smoothly joining the upper surface of the second part 20 and the lower surface of the second region 22 of the second component 20. That is, bonding with an adhesive and installation of a sealing agent can be performed in a desired relative positional relationship.

次に、対応する第１部品１０の８個の第１リベット孔１４及び第２部品２０の８個の第２リベット孔２４の各々の組を共通に貫通するリベット３０を用いて、第１部品１０及び第２部品２０を互いに対して締結する（締結工程）。リベット３０は、前記実施形態と同様に、例えばポップリベットファスナー株式会社が製造している型式「ＳＳＤ−４２−ＳＳＨ」であり、締結作業は、公知のリベットガンを用いて行われ得る。   Next, using the rivet 30 that penetrates each set of the eight first rivet holes 14 of the corresponding first part 10 and the eight second rivet holes 24 of the second part 20 in common, the first part 10 and the second component 20 are fastened to each other (fastening step). The rivet 30 is, for example, a model “SSD-42-SSH” manufactured by Pop Rivet Fastener Co., Ltd., as in the above embodiment, and the fastening operation can be performed using a known rivet gun.

以上のような本実施形態によっても、開口部１８を完全に気密に塞ぐことができる。   Also according to the present embodiment as described above, the opening 18 can be completely airtightly closed.

アクリル系接着剤として、電気化学工業株式会社が製造している型式「ハードロック Ｍ−６００−０８Ａ」を用いて、シーリング剤４０として、日本シーカ株式会社製の型式「Ｓｉｋａｆｌｅｘ（シーカフレックス）−ＳＣＲ」を用いた場合について、開口部１８のリーク特性が実際に検査された（開口部１８は、１辺が約２５ｃｍ（図面と整合させました）の正方形であり、第１リベット孔１４及び第２リベット孔２４の直径は３．３ｍｍであり、上面部材１２の厚みは１ｍｍであり、第２部品２０の厚みは１ｍｍであり、シーリング剤は上面部材１２の上面の内周側１０ｍｍの幅の領域１２ａに塗布され、接着剤は上面部材１２の上面の外周側２０ｍｍの幅の領域１２ｂ（シーリング剤が塗布されていない全面）に塗布された）。具体的には、検査対象領域にスヌープ液（濡れ検出液）を筆で塗布しておいて、気泡の発生の有無を目視で確認することでリークの有無を判断した。   Using “Hardlock M-600-08A” manufactured by Denki Kagaku Kogyo Co., Ltd. as the acrylic adhesive, the model “Sikaflex-SCR” manufactured by Nippon Sika Co., Ltd. is used as the sealing agent 40. ”Was actually inspected for the leakage characteristics of the opening 18 (the opening 18 is a square with one side approximately 25 cm (aligned with the drawing), the first rivet hole 14 and the second The diameter of the two rivet holes 24 is 3.3 mm, the thickness of the upper surface member 12 is 1 mm, the thickness of the second component 20 is 1 mm, and the sealing agent has a width of 10 mm on the inner peripheral side of the upper surface of the upper surface member 12. The adhesive was applied to the region 12a, and the adhesive was applied to the region 12b having a width of 20 mm on the outer peripheral side of the upper surface of the upper surface member 12 (the entire surface where the sealing agent was not applied). Specifically, the presence or absence of leakage was determined by applying a snoop liquid (wetting detection liquid) to the inspection target area with a brush and visually confirming the presence or absence of bubbles.

リーク特性試験の結果は、前記実施形態の結果（図３）と同じであった。すなわち、本実施形態に従って気密に塞がれた開口部１８においても、１０００Ｐａの空気圧力下でもリークが生じないことが確認された。   The result of the leak characteristic test was the same as the result of the above embodiment (FIG. 3). That is, it was confirmed that no leak occurred even at the opening 18 hermetically closed according to the present embodiment even under an air pressure of 1000 Pa.

また、本実施形態による開口部１８におけるアウトガス性能を評価した所、前記実施形態と同様、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下であり、他の成分の増分は０．２μｇ／ｍ3 以下であった。 Moreover, when the outgas performance in the opening part 18 by this embodiment was evaluated, the increment of methacrylic acid ester is 1 microgram / m < 3 > or less similarly to the said embodiment, and the increment of another component is 0.2 microgram / m < 3 >. It was the following.

以上のような本実施形態も、キッチンの流し台の製造や、自動販売機の筐体の製造等に有効に活用することができる。更には、特殊環境下で使用されるダクト等の製造にも、有効に活用することができる。   This embodiment as described above can also be effectively used for manufacturing a kitchen sink, manufacturing a vending machine casing, and the like. Furthermore, it can be effectively used for manufacturing ducts and the like used in special environments.

１０ 第１部品
１２ 上板部材（第１領域）
１２ａ 内周側領域
１２ｂ 外周側領域
１４ 第１リベット孔
１５ 側板部材
１８ 開口部
２０ 第２部品
２２ 第２領域
２４ 第２リベット孔
３０ リベット
４０ シーリング剤 10 First component 12 Upper plate member (first region)
12a Inner peripheral side region 12b Outer peripheral side region 14 First rivet hole 15 Side plate member 18 Opening part 20 Second part 22 Second region 24 Second rivet hole 30 Rivet 40 Sealing agent

Claims (20)

開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、
前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、
を互いに接合する方法であって、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部に接着剤を塗布する塗布工程と、
前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面を接合する接合工程と、
前記接合工程の後で、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットを用いて前記第１部品及び前記第２部品を互いに対して締結する締結工程と、
前記開口部を介して前記第２部品の前記他方側に露出する面と前記開口部の全周とが近接する領域にシーリング剤を塗布して前記開口部の全周を気密に塞ぐ密封工程と、
を備え、
前記接着剤は、アクリル系接着剤であり、
前記シーリング剤は、ウレタン系シーリング剤である
ことを特徴とする方法。 A metal first part having an opening and having a plurality of first rivet holes in a first region around the periphery of the opening;
The first part has a shape that covers the opening from one side, has a second area corresponding to the first area, and the second area has a plurality of first rivet holes in the first part. A second metal part having a plurality of corresponding second rivet holes;
Which are joined together,
An application step of applying an adhesive to at least a part of at least one of the one side surface of the first region of the first component and the other side surface of the second region of the second component;
The surface of the first part of the first part and the surface of the second part of the second part are joined to each other while positioning the first part and the second part with respect to each other. Joining process;
After the joining step, the first part is formed using a rivet that commonly passes through each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part. A fastening step of fastening the part and the second part to each other;
A sealing step in which a sealing agent is applied to a region where the surface exposed to the other side of the second part through the opening and the entire circumference of the opening are close to seal the entire circumference of the opening in an airtight manner; ,
With
The adhesive is an acrylic adhesive,
The method according to claim 1, wherein the sealing agent is a urethane-based sealing agent. 前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有している
ことを特徴とする請求項１に記載の方法。 The method according to claim 1, wherein the adhesive contains 40 to 50% methyl methacrylate and 20 to 40% methacrylic acid esters containing 2-ethylhexyl methacrylate, respectively. 前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有している
ことを特徴とする請求項１または２に記載の方法。 The method according to claim 1 or 2, wherein the sealing agent contains 20 to 30% of a urethane prepolymer. 前記接合工程では、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔のうちの少なくとも１つの組を共通に貫通する棒状部材を用いて前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面が接合される
ことを特徴とする請求項１乃至３のいずれかに記載の方法。 In the joining step, the rod-shaped member that commonly penetrates at least one set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part is used. The surface of the one side of the first region of the first component and the surface of the other side of the second region of the second component are joined while positioning the first component and the second component relative to each other. 4. A method according to any one of claims 1 to 3, characterized in that 開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、
前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、
が接合されてなる構造体であって、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部上の接着剤と、
対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットと、
前記開口部を介して前記第２部品の前記他方側に露出する面と前記開口部の全周とが近接する領域に塗布されたシーリング剤と、
を備え、
前記シーリング剤によって前記開口部の全周が気密に塞がれていて、１０００Ｐａの空気圧力下でもリークがない
ことを特徴とする構造体。 A metal first part having an opening and having a plurality of first rivet holes in a first region around the periphery of the opening;
The first part has a shape that covers the opening from one side, has a second area corresponding to the first area, and the second area has a plurality of first rivet holes in the first part. A second metal part having a plurality of corresponding second rivet holes;
Is a bonded structure,
An adhesive on at least a portion of at least one of the one side surface of the first region of the first part and the other side surface of the second region of the second part facing each other;
A rivet that commonly passes through each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part;
A sealing agent applied to a region where the surface exposed to the other side of the second part through the opening and the entire circumference of the opening are close to each other;
With
A structure characterized in that the entire circumference of the opening is hermetically closed by the sealing agent, and there is no leakage even under an air pressure of 1000 Pa. 前記接着剤は、アクリル系接着剤であり、
前記シーリング剤は、ウレタン系シーリング剤である
ことを特徴とする請求項５に記載の構造体。 The adhesive is an acrylic adhesive,
The structure according to claim 5, wherein the sealing agent is a urethane-based sealing agent. 前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有している
ことを特徴とする請求項５または６に記載の構造体。 The structure according to claim 5 or 6, wherein the adhesive contains 40 to 50% of methyl methacrylate and 20 to 40% of methacrylic acid esters including 2-ethylhexyl methacrylate, respectively. body. 前記シーリング剤による前記開口部におけるアウトガス性能は、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下であり、他の成分の増分は０．２μｇ／ｍ3 以下である
ことを特徴とする請求項５乃至７のいずれかに記載の構造体。 6. The outgas performance in the opening by the sealing agent is characterized in that the increment of methacrylates is 1 μg / m 3 or less and the increment of other components is 0.2 μg / m 3 or less. The structure in any one of thru | or 7. 前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有している
ことを特徴とする請求項５乃至８のいずれかに記載の構造体。 The structure according to any one of claims 5 to 8, wherein the sealing agent contains 20 to 30% of a urethane prepolymer. 当該構造体は、流し台である
ことを特徴とする請求項５乃至９のいずれかに記載の構造体。 The structure according to claim 5, wherein the structure is a sink. 開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、
前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、
を互いに接合する方法であって、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面の前記開口部側及び前記第２部品の前記第２領域の他方側の面の前記開口部側の少なくとも一方の少なくとも一部にシーリング剤を塗布する第１塗布工程と、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の前記シーリング剤が塗布されていない少なくとも一部に接着剤を塗布する第２塗布工程と、
前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面を接合しつつ前記シーリング剤を前記開口部の全周に行き渡らせる接合工程と、
前記接合工程の後で、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットを用いて前記第１部品及び前記第２部品を互いに対して締結する締結工程と、
を備え、
前記接着剤は、アクリル系接着剤であり、
前記シーリング剤は、ウレタン系シーリング剤である
ことを特徴とする方法。 A metal first part having an opening and having a plurality of first rivet holes in a first region around the periphery of the opening;
The first part has a shape that covers the opening from one side, has a second area corresponding to the first area, and the second area has a plurality of first rivet holes in the first part. A second metal part having a plurality of corresponding second rivet holes;
Which are joined together,
At least a part of at least one of the opening side of the one side surface of the first region of the first part and the other side surface of the second region of the second part facing each other. A first application step of applying a sealing agent;
Adhesive on at least a portion of the first part of the first part facing each other and at least a portion of the second part of the second part on the other side of the second part where the sealing agent is not applied. A second application step of applying
While positioning the first component and the second component relative to each other, the surface on the one side of the first region of the first component and the surface on the other side of the second region of the second component are joined. While joining the sealing agent around the entire circumference of the opening,
After the joining step, the first part is formed using a rivet that commonly passes through each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part. A fastening step of fastening the part and the second part to each other;
With
The adhesive is an acrylic adhesive,
The method according to claim 1, wherein the sealing agent is a urethane-based sealing agent. 前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有している
ことを特徴とする請求項１１に記載の方法。 The method according to claim 11, wherein the adhesive contains 40 to 50% of methyl methacrylate and 20 to 40% of methacrylic acid esters containing 2-ethylhexyl methacrylate, respectively. 前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有している
ことを特徴とする請求項１１または１２に記載の方法。 The method according to claim 11 or 12, wherein the sealing agent contains 20 to 30% of a urethane prepolymer. 前記接合工程では、対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔のうちの少なくとも１つの組を共通に貫通する棒状部材を用いて前記第１部品及び前記第２部品を互いに対して位置決めしながら前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の前記他方側の面が接合される
ことを特徴とする請求項１１乃至１３のいずれかに記載の方法。 In the joining step, the rod-shaped member that commonly penetrates at least one set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part is used. The surface of the one side of the first region of the first component and the surface of the other side of the second region of the second component are joined while positioning the first component and the second component relative to each other. 14. A method according to any of claims 11 to 13, characterized in that 開口部を有し、前記開口部の周縁の第１領域に複数の第１リベット孔を有する金属製の第１部品と、
前記第１部品の前記開口部を一方側から覆う形状を有し、前記第１領域に対応する第２領域を有し、当該第２領域に前記第１部品の前記複数の第１リベット孔にそれぞれ対応する複数の第２リベット孔を有する金属製の第２部品と、
が接合されてなる構造体であって、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面の前記開口部側及び前記第２部品の前記第２領域の他方側の面の前記開口部側の少なくとも一方の少なくとも一部上のシーリング剤と、
互いに向かい合う前記第１部品の前記第１領域の前記一方側の面及び前記第２部品の前記第２領域の他方側の面の少なくとも一方の少なくとも一部上の接着剤と、
対応する前記第１部品の前記複数の第１リベット孔及び前記第２部品の前記複数の第２リベット孔の各々の組を共通に貫通するリベットと、
を備え、
前記シーリング剤によって前記開口部の全周が気密に塞がれていて、１０００Ｐａの空気圧力下でもリークがない
ことを特徴とする構造体。 A metal first part having an opening and having a plurality of first rivet holes in a first region around the periphery of the opening;
The first part has a shape that covers the opening from one side, has a second area corresponding to the first area, and the second area has a plurality of first rivet holes in the first part. A second metal part having a plurality of corresponding second rivet holes;
Is a bonded structure,
On at least a portion of at least one of the opening side of the one side surface of the first region of the first part and the other side surface of the second region of the second part facing each other. A sealant of
An adhesive on at least a portion of at least one of the one side surface of the first region of the first part and the other side surface of the second region of the second part facing each other;
A rivet that commonly passes through each set of the plurality of first rivet holes of the corresponding first part and the plurality of second rivet holes of the second part;
With
A structure characterized in that the entire circumference of the opening is hermetically closed by the sealing agent, and there is no leakage even under an air pressure of 1000 Pa. 前記接着剤は、アクリル系接着剤であり、
前記シーリング剤は、ウレタン系シーリング剤である
ことを特徴とする請求項１５に記載の構造体。 The adhesive is an acrylic adhesive,
The structure according to claim 15, wherein the sealing agent is a urethane-based sealing agent. 前記接着剤は、メタクリル酸メチルを４０〜５０％、メタクリル酸２−エチルヘキシルを含むメタクリル酸エステル類を２０〜４０％、それぞれ含有している
ことを特徴とする請求項１５または１６に記載の構造体。 The structure according to claim 15 or 16, wherein the adhesive contains 40 to 50% of methyl methacrylate and 20 to 40% of methacrylic acid esters including 2-ethylhexyl methacrylate, respectively. body. 前記シーリング剤による前記開口部におけるアウトガス性能は、メタクリル酸エステル類の増分が１μｇ／ｍ3 以下であり、他の成分の増分は０．２μｇ／ｍ3 以下である
ことを特徴とする請求項１５乃至１７のいずれかに記載の構造体。 The outgas performance in the opening by the sealing agent is characterized in that the increment of methacrylates is 1 μg / m 3 or less and the increment of other components is 0.2 μg / m 3 or less. The structure in any one of thru | or 17. 前記シーリング剤は、ウレタンプレポリマーを２０〜３０％含有している
ことを特徴とする請求項１５乃至１８のいずれかに記載の構造体。 The structure according to any one of claims 15 to 18, wherein the sealing agent contains 20 to 30% of a urethane prepolymer. 当該構造体は、流し台である
ことを特徴とする請求項１５乃至１９のいずれかに記載の構造体。 The structure according to any one of claims 15 to 19, wherein the structure is a sink.
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