JP3939185B2 - Resin parts mounting structure - Google Patents

Resin parts mounting structure Download PDF

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Publication number
JP3939185B2
JP3939185B2 JP2002113361A JP2002113361A JP3939185B2 JP 3939185 B2 JP3939185 B2 JP 3939185B2 JP 2002113361 A JP2002113361 A JP 2002113361A JP 2002113361 A JP2002113361 A JP 2002113361A JP 3939185 B2 JP3939185 B2 JP 3939185B2
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Japan
Prior art keywords
resin
resin component
convex
mounting boss
insertion hole
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Expired - Fee Related
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JP2002113361A
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Japanese (ja)
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JP2003305774A (en
Inventor
崇 島崎
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Kasai Kogyo Co Ltd
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Kasai Kogyo Co Ltd
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Priority to JP2002113361A priority Critical patent/JP3939185B2/en
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    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B29C65/607—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking the integral rivets being hollow
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
    • B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3014—Door linings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車のドアトリム、ピラーガーニッシュ或いはラゲージサイドトリム等の一方の樹脂部品に、ポケットカバー或いはアームレスト等の別部品で構成する他方の樹脂部品を取付けるために、一方の樹脂部品側に突設形成した取付け用ボスを他方の樹脂部品側に開設した挿入孔に挿通させ後、取付け用ボスの先端部を溶着するようになした樹脂部品の取付け構造に関する。
【０００２】
【従来の技術】
この種の樹脂部品の取付け構造としては、実開平４‐６３２２７号公報に開示されており、これによれば，図７乃至図９に示されたものが知られている。
【０００３】
先ず、図７に示すものにあっては，一対の樹脂部品ａ，ｂを互いに取付ける場合、一方の樹脂部品ａに取付け用ボスｃを突設すると共に、取付け用ボスｃが挿通する挿入孔ｄを他方の樹脂部品ｂに形成しておき、取付け用ボスｃを挿入孔ｄに挿通させた後，取付け用ボスｃの先端部を挿入孔ｄより突出させて，この突出部分を熱加締めすることによって加締め部ｅを形成し、同時に加締め部ｅの側部先端部を他方の樹脂部品ｂ側に埋設させて、加締め部ｅのアンカー作用により樹脂部品ａに対して樹脂部品ｂの取付けを図るようにしている。
【０００４】
しかしながら、樹脂部品ａ，ｂ同士のせん断強度を保つために、取付けボスｃは径を太く且つ加締め部ｅを多く確保できるように長く設定するのが好ましいが、そうした場合、樹脂部品ａの表面にヒケが生じ、外観不良の大きな要因となってしまう。また、加締め部ｅの側部先端を他方の樹脂部品ｂ側に埋設した結果、他方の樹脂部品ｂの板厚がその分部分的に薄くなって、一方の樹脂部品ａに対する他方の樹脂部品ｂを剥ぎ取る方向のせん断強度が弱くなってしまう。
【０００５】
そこで、ヒケを発生させないように、小径の取付け用ボスｃを多数設定することが考えられるが、この対策では小径の取り付け用ボスｃにおける個々の加締め工数が増え、作業性の悪いものと成ってしまう。
【０００６】
このために、図８及び図９に示すように、樹脂部品ａ側に、取付け用ボスｃが突設形成され、樹脂部品ｂ側に取付け用ボスｃを挿通させる挿入孔ｄが開設されていると共に、樹脂部品ｂにおける取付け用ボスｃが突出する側の面における挿入孔ｄの周囲に、溶着代となる凸部ｆを形成して構成したものが知られている。
【０００７】
そして、取付け用ボスｃ先端を熱溶着或いは超音波溶着等により溶着する際、挿入孔ｄの周囲に設定された凸部ｆも同時に溶着され、溶着代を構成することになる。
【０００８】
【発明が解決しようとする課題】
しかしながら、図８及び図９に示すものにおいては、樹脂部品ｂにおける取付け用ボスｃが突出する側の面に、凸部ｆを形成するものであることから、凸部ｆが溶着代となって、両樹脂部品ａ，ｂのせん断強度は確保されるものの、凸部ｆが樹脂部品ｂにおける取付け用ボスｃが突出する側の面からの出っ張り量が増して、取付けクリアランスの少ない場所への適用が困難となってしまう。
【０００９】
本発明は、かかる点に鑑み、一方の樹脂部品に他方の樹脂部品をせん断強度を保持しつつ取付けると共に、溶着代としての突起が他方の樹脂部品における取付け用ボスが突出する側の面に突出させないように工夫した樹脂部品の取付け構造を提供することを目的としている。
【００１０】
【課題を解決するための手段】
上記目的を達成するために、本発明は、相互に接合固定される樹脂部品の一方側に取付け用ボスが突出形成され、他方側にはこの取付け用ボスを挿通させる挿入孔が開設されて、取付け用ボスを挿入孔に挿通させた後，取付け用ボスの先端部分を溶着加締めすることによって両樹脂部品を結合するように構成した樹脂部品の取付け構造であって、他方の樹脂部品における一方の樹脂部品との対向面側における挿入孔の周囲に、凸状溶着代部が設定され、且つ、一方の樹脂部品と凸状溶着代部との間に一方の樹脂部品側に形成した凸状受け片部を介在させていることを特徴とするものである。
【００１１】
本発明によれば、一方の樹脂部品に突出形成した取付け用ボスを他方の樹脂部品に開設した挿入孔に挿通させた後、取付け用ボスの先端部分を溶着加締めする場合に、挿入孔の周囲に凸状溶着代部が設定されていることから、たとえ、溶着加締め部の先端が他方の樹脂部品に埋設されたとしても、他方の樹脂部品の板厚は充分確保されており、また、凸状溶着代部は、他方の樹脂部品における一方の樹脂部品との対向面側に設定されていることから、他方の樹脂部品の表面への突起物とはならず、取付けクリアランスの少ない場所への適用も可能となる。
【００１２】
また本発明は、前記一方の樹脂部品と前記凸状溶着代部との間に前記一方の樹脂部品側に形成した凸状受け片部を介在させて構成するもので、両樹脂部品が互いに離間する状態で結合される場合に、凸状溶着代部が凸状受け部に当接して、取付け用ボスの先端部の溶着加締め時に一方の樹脂部品に対して他方の樹脂部品を安定させることができる。
【００１３】
また本発明における前記凸状受け片部は、リブ状片により構成して、一方の樹脂部品の大きな重量アップ等を防止している。
【００１４】
また本発明における前記リブ状片は、平面視十字状に形成することにより、一方の樹脂部品の重量アップを抑えつつ、凸状溶着代部を安定的に保持することができる。
【００１６】
【発明の実施の形態】
以下、本発明における一の実施の形態について、図１及び図２を用いて説明する。
【００１７】
図１は、本発明における一の実施の形態を示す一部平面図、図２は図１のＡ−Ａ断面図である。
【００１８】
図１において、例えば、ドアトリム、ピラーガーニッシュ或いはラゲージサイドトリム等の一方の樹脂部品１に、ポケットカバー或いはアームレスト等の別部品で構成する他方の樹脂部品２を取付ける場合、一方の樹脂部品1には、取付け用ボス３が突出形成され、他方の樹脂部品２側には取付け用ボス３を挿通させる挿入孔４が開設されている。
【００１９】
また、一方の樹脂部品１には、取付け用ボス３を支え囲むように、リブ状片５が平面視略十字状に形成されており、他方の樹脂部品２における一方の樹脂部品１との対向面側には、凸状溶着代部６が挿入孔４を囲むように設定されている。
【００２０】
そして、リブ状片５は凸状溶着代部６に当接して、凸状受け片部を構成している。
【００２１】
従って、一方の樹脂部品１に他方の樹脂部品２を結合取付けする場合、先ず、図２に示すように、取付け用ボス３を挿入孔４に相通させて、両樹脂部品１,２を仮組付けしておく。この時、取付け用ボス３の先端部分は、挿入孔４より突出している。
【００２２】
次に、工具ホーン７を使用して、取付け用ボス３の先端部分を、熱溶着或いは超音波溶着等により加締めて、図３に示すように、加締め部３ａを形成して、加締め部３ａのアンカー作用により樹脂部品１と樹脂部品２とを相互に結合するようにした(図４参照)。
【００２３】
この時、加締め部３ａは、工具ホーン７の凹状円弧形状によって略キノコ型に形成されて、その外周部が鋭利となって、他方の樹脂部品２側に埋設されることになるが、凸状溶着代部６を挿入孔４を囲むように設定して、他方の樹脂部品２の板厚は充分確保されていることから、例えば、一方の樹脂部品１に対する他方の樹脂部品２を引き剥がす方向のせん断強度を大きくすることができる。
【００２４】
また、凸状溶着代部６は、他方の樹脂部品２における一方の樹脂部品１との対向面側に設定されていることから、他方の樹脂部品２の表面への突起物とはならず、取付けクリアランスの少ない場所への適用も可能となる。
【００２５】
さらに、一方の樹脂部品１と凸状溶着代部６との間にリブ状片５が介在し、凸状溶着代部６に当接していることから、両樹脂部品１，２が本実施の形態のように互いに離間する状態で結合される場合でも、凸状溶着代部６がリブ状片部５に当接して、取付け用ボス３の先端部の溶着加締め時に一方の樹脂部品１に対して他方の樹脂部品２を安定させることができる。従って、リブ状片５に代えて、山型形状の凸状受け片部により構成してもよい。
【００２６】
ただ、凸状受け片部をリブ状片５により構成したことは、一方の樹脂部品１の大きな重量アップ等を防止することができる。
【００２７】
またリブ状片５は、平面視十字状に形成したことにより、一方の樹脂部品１の重量アップを抑えつつ、凸状溶着代部６を安定的に保持することになる。
【００２８】
図５は、本発明の他の実施の形態を示している。
【００２９】
図５によれば、凸状溶着代部６の外周形状を、先端先細り状のなだらかな山形形状に形成したもので、せん断強度をさらに増すべく意図している。
【００３０】
図６は、本発明のさらに他の実施の形態を示している。
【００３１】
図６によれば、一方の樹脂部品１に対して、他方の樹脂部品２を面合わせすることにより直付けする場合の実施の形態であって、一方の樹脂部品１側に、凸状溶着代部６が嵌合する嵌合凹部８を形成している。
【００３２】
そして、凸状溶着代部６を嵌合凹部８に嵌合することによって、一方の樹脂部品１に他方の樹脂部品２を直付けで結合したとしても、凸状溶着代部６が嵌合凹部８に嵌合する分、両樹脂部品１，２の高さを抑えることができて、取付けクリアランスの少ない場所に益々適用しやすくなると共に、両樹脂部品１,２を面合わせしたとしても、凸状溶着代部６が設定されていることから、取付け用ボス３の溶着代を充分確保でき、溶着ばらつきによるせん断強度の低下を防止できる。
【００３３】
【発明の効果】
以上説明したように、本発明は、一方の樹脂部品に突出形成した取付け用ボスを他方の樹脂部品に開設した挿入孔に挿通させた後、取付け用ボスの先端部分を溶着加締めする場合に、挿入孔の周囲に凸状溶着代部が設定されていることから、たとえ、溶着加締め部の先端が他方の樹脂部品に埋設されたとしても、他方の樹脂部品の板厚は充分確保されており、また、凸状溶着代部は、他方の樹脂部品における一方の樹脂部品との対向面側に設定されていることから、他方の樹脂部品の表面への突起物とはならず、取付けクリアランスの少ない場所への適用も可能となる。
【図面の簡単な説明】
【図１】本発明における一の実施の形態を採用した樹脂部品の取付け構造を示す一部平面図である。
【図２】図１のＡ−Ａ断面図である。
【図３】工具ホーンによって取付け用ボスを加締めている状態を描画した図１のＡ−Ａ断面図である。
【図４】同じく、取り付け用ボスを加締めることによって両樹脂部品を結合した状態を描画した図１のＡ−Ａ断面図である。
【図５】本発明に係る他の実施の形態を示す縦断面図である。
【図６】本発明に係るさらに他の実施の形態を示す縦断面図である。
【図７】従来の樹脂部品の取付け構造を示す縦断面図である。
【図８】他の従来の樹脂部品の取付け構造を示す分解斜視図である。
【図９】同じく縦断面図である。
【符号の説明】
１ 一方の樹脂部品
２ 他方の樹脂部品
３ 取付け用ボス
３ａ 加締め部
４ 挿入孔
５ リブ状片(凸状受け片部)
６ 凸状溶着代部
８ 嵌合凹部[0001]
BACKGROUND OF THE INVENTION
In the present invention, one resin component such as a door trim, a pillar garnish, or a luggage side trim of an automobile is mounted on one resin component side in order to attach the other resin component constituted by another component such as a pocket cover or an armrest. The present invention relates to a resin component mounting structure in which the formed mounting boss is inserted into an insertion hole formed on the other resin component side, and then the tip of the mounting boss is welded.
[0002]
[Prior art]
This type of resin part mounting structure is disclosed in Japanese Utility Model Publication No. 4-63227, and according to this, the structure shown in FIGS. 7 to 9 is known.
[0003]
First, in the case shown in FIG. 7, when a pair of resin parts a and b are attached to each other, an insertion boss c is projected from one resin part a and an insertion hole d through which the attachment boss c is inserted. Is formed in the other resin part b, and the mounting boss c is inserted into the insertion hole d, and then the tip of the mounting boss c is protruded from the insertion hole d, and the protruding portion is heat-clamped. Thus, the caulking portion e is formed, and at the same time, the side end portion of the caulking portion e is embedded in the other resin component b side, and the resin component b is fixed to the resin component a by the anchor action of the caulking portion e. It tries to be installed.
[0004]
However, in order to maintain the shear strength between the resin parts a and b, it is preferable to set the mounting boss c long so that the diameter is large and a large number of caulking portions e can be secured. This causes sink marks and becomes a major cause of poor appearance. In addition, as a result of embedding the side end of the caulking portion e on the other resin component b side, the plate thickness of the other resin component b is partially reduced accordingly, and the other resin component relative to one resin component a The shear strength in the direction of peeling b is weakened.
[0005]
Therefore, it is conceivable to set a large number of small-diameter mounting bosses c so as not to cause sink marks. However, this measure increases the number of individual crimping steps for the small-diameter mounting bosses c, resulting in poor workability. End up.
[0006]
For this purpose, as shown in FIGS. 8 and 9, a mounting boss c is formed to protrude on the resin component a side, and an insertion hole d is formed on the resin component b side for inserting the mounting boss c. Along with the insertion hole d on the surface of the resin component b on which the mounting boss c protrudes, there is known a structure in which a convex portion f serving as a welding margin is formed.
[0007]
When the tip of the mounting boss c is welded by thermal welding or ultrasonic welding, the convex portion f set around the insertion hole d is also welded at the same time, thereby constituting a welding allowance.
[0008]
[Problems to be solved by the invention]
However, in what is shown in FIG.8 and FIG.9, since the convex part f is formed in the surface by which the mounting boss | hub c in the resin component b protrudes, the convex part f becomes a welding allowance. Although the shear strength of both the resin parts a and b is ensured, the protruding part f increases the amount of protrusion from the surface of the resin part b where the mounting boss c protrudes, and is applied to a place where the mounting clearance is small. Becomes difficult.
[0009]
In view of this point, the present invention attaches the other resin part to one resin part while maintaining the shear strength, and the projection as a welding margin projects to the surface of the other resin part on which the mounting boss projects. An object of the present invention is to provide a resin component mounting structure that is devised so as not to cause such damage.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a mounting boss projectingly formed on one side of resin parts to be bonded and fixed to each other, and an insertion hole through which the mounting boss is inserted is opened on the other side. A resin part mounting structure configured to join both resin parts by inserting a mounting boss through an insertion hole and then welding and crimping the tip of the mounting boss. A convex welding margin is set around the insertion hole on the surface facing the resin component, and a convex shape is formed on one resin component side between the one resin component and the convex welding margin. A receiving piece is interposed .
[0011]
According to the present invention, when the mounting boss projectingly formed on one resin part is inserted into the insertion hole opened on the other resin part, and the tip of the mounting boss is welded and crimped, Since the convex welding allowance portion is set around, even if the tip of the welding swaged portion is embedded in the other resin component, the plate thickness of the other resin component is sufficiently secured, and The convex welding allowance portion is set on the surface of the other resin part facing the one resin part, so that it does not become a protrusion on the surface of the other resin part, and has a small mounting clearance. Application to is also possible.
[0012]
According to the present invention, a convex receiving piece portion formed on the one resin component side is interposed between the one resin component and the convex welding margin, and the two resin components are separated from each other. When joining in such a state, the convex welding allowance part abuts on the convex receiving part, and the other resin part is stabilized with respect to one resin part when welding and crimping the tip of the mounting boss. Can do.
[0013]
Further, the convex receiving piece portion in the present invention is constituted by a rib-like piece to prevent a large weight increase of one resin part.
[0014]
Moreover, the said rib-shaped piece in this invention can hold | maintain a convex welding margin part stably, suppressing the weight increase of one resin component by forming in a planar view cross shape.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0017]
FIG. 1 is a partial plan view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of FIG.
[0018]
In FIG. 1, for example, when one resin component 1 such as a door trim, a pillar garnish, or a luggage side trim is attached to another resin component 2 constituted by another component such as a pocket cover or an armrest, The mounting boss 3 is formed so as to protrude, and an insertion hole 4 through which the mounting boss 3 is inserted is formed on the other resin component 2 side.
[0019]
Also, one resin component 1 is formed with a rib-like piece 5 in a substantially cross shape in plan view so as to support and surround the mounting boss 3, and the other resin component 2 faces one resin component 1. On the surface side, the convex welding allowance portion 6 is set so as to surround the insertion hole 4.
[0020]
The rib-like piece 5 is in contact with the convex welding margin portion 6 to constitute a convex receiving piece portion.
[0021]
Accordingly, when the other resin part 2 is attached and attached to one resin part 1, first, as shown in FIG. 2, the mounting boss 3 is brought into communication with the insertion hole 4, and both resin parts 1 and 2 are temporarily assembled. Keep it attached. At this time, the tip of the mounting boss 3 protrudes from the insertion hole 4.
[0022]
Next, the tool horn 7 is used to crimp the tip of the mounting boss 3 by thermal welding or ultrasonic welding to form a crimped portion 3a as shown in FIG. The resin component 1 and the resin component 2 are coupled to each other by the anchor action of the portion 3a (see FIG. 4).
[0023]
At this time, the caulking portion 3a is formed in a substantially mushroom shape by the concave arc shape of the tool horn 7, and its outer peripheral portion is sharp and embedded in the other resin component 2 side. For example, the other resin component 2 is peeled off from one resin component 1 since the thickness of the other resin component 2 is sufficiently secured by setting the welding margin portion 6 so as to surround the insertion hole 4. The shear strength in the direction can be increased.
[0024]
Moreover, since the convex welding allowance part 6 is set on the opposite surface side of the other resin component 2 to the one resin component 1, it does not become a protrusion on the surface of the other resin component 2, Application to a place with a small mounting clearance is also possible.
[0025]
Further, since the rib-like piece 5 is interposed between the one resin component 1 and the convex welding allowance portion 6 and is in contact with the convex welding allowance portion 6, both the resin components 1 and 2 are in this embodiment. Even when they are coupled in a state of being separated from each other as in the form, the convex welding allowance portion 6 abuts on the rib-like piece portion 5 and is attached to one resin component 1 at the time of welding caulking of the tip end portion of the mounting boss 3. On the other hand, the other resin component 2 can be stabilized. Therefore, instead of the rib-like piece 5, a chevron-shaped convex receiving piece portion may be used.
[0026]
However, the fact that the convex receiving piece portion is constituted by the rib-like piece 5 can prevent a large increase in weight of one resin component 1.
[0027]
Further, the rib-like piece 5 is formed in a cross shape in plan view, so that the convex welding margin portion 6 can be stably held while suppressing an increase in the weight of one resin component 1.
[0028]
FIG. 5 shows another embodiment of the present invention.
[0029]
According to FIG. 5, the outer peripheral shape of the convex welding allowance portion 6 is formed in a gentle mountain shape with a tapered tip, and is intended to further increase the shear strength.
[0030]
FIG. 6 shows still another embodiment of the present invention.
[0031]
According to FIG. 6, an embodiment in which the other resin component 2 is directly attached to one resin component 1 by face-to-face bonding, and a convex welding allowance is provided on one resin component 1 side. A fitting recess 8 into which the portion 6 is fitted is formed.
[0032]
And even if the other resin component 2 is directly bonded to one resin component 1 by fitting the convex welding allowance portion 6 into the fitting recess 8, the convex welding allowance portion 6 is fitted into the fitting recess. The height of both resin parts 1 and 2 can be reduced by the amount of fitting to 8, and it becomes easier to apply to places with a small mounting clearance, and even if both resin parts 1 and 2 are mated, Since the welding allowance portion 6 is set, a sufficient welding allowance for the mounting boss 3 can be secured, and a decrease in shear strength due to welding variations can be prevented.
[0033]
【The invention's effect】
As described above, the present invention is applied to the case where the mounting boss protruding from one resin part is inserted into the insertion hole formed in the other resin part, and then the tip of the mounting boss is welded and crimped. Since the convex welding margin is set around the insertion hole, even if the tip of the welding crimping portion is embedded in the other resin part, the thickness of the other resin part is sufficiently secured. In addition, since the convex welding allowance portion is set on the opposite surface side of the other resin part to the one resin part, it does not become a protrusion on the surface of the other resin part. Application to places with little clearance is also possible.
[Brief description of the drawings]
FIG. 1 is a partial plan view showing a resin component mounting structure adopting an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
3 is a cross-sectional view taken along the line AA of FIG. 1 depicting a state in which a mounting boss is caulked with a tool horn.
4 is a cross-sectional view taken along the line AA in FIG. 1 in which a state in which both resin parts are coupled by caulking the mounting boss is similarly drawn.
FIG. 5 is a longitudinal sectional view showing another embodiment according to the present invention.
FIG. 6 is a longitudinal sectional view showing still another embodiment according to the present invention.
FIG. 7 is a longitudinal sectional view showing a conventional resin component mounting structure.
FIG. 8 is an exploded perspective view showing another conventional resin component mounting structure.
FIG. 9 is a longitudinal sectional view similarly.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 One resin component 2 The other resin component 3 Mounting boss 3a Clamping part 4 Insertion hole 5 Rib-like piece (convex receiving piece part)
6 Convex welding allowance part 8 Fitting recess

Claims (3)

相互に接合固定される樹脂部品の一方側に取付け用ボスが突出形成され、他方側にはこの取付け用ボスを挿通させる挿入孔が開設されて、前記取付け用ボスを前記挿入孔に挿通させた後，取付け用ボスの先端部分を溶着加締めすることによって前記両樹脂部品を結合するように構成した樹脂部品の取付け構造であって、
前記他方の樹脂部品における前記一方の樹脂部品との対向面側における前記挿入孔の周囲に、凸状溶着代部が設定され、
且つ、前記一方の樹脂部品と前記凸状溶着代部との間に前記一方の樹脂部品側に形成した凸状受け片部を介在させていることを特徴とする樹脂部品の取付け構造。A mounting boss protrudes from one side of the resin parts to be bonded and fixed to each other, and an insertion hole for inserting the mounting boss is opened on the other side, and the mounting boss is inserted through the insertion hole. And a resin part mounting structure configured to join both the resin parts by welding and crimping the tip of the mounting boss.
Around the insertion hole on the side facing the one resin part in the other resin part, a convex welding margin is set ,
And the mounting structure of the resin component characterized by interposing the convex receiving piece part formed in the said one resin component side between said one resin component and the said convex welding allowance part . 前記凸状受け片部は、リブ状片により構成したことを特徴とする請求項１記載の樹脂部品の取付け構造。The convex receiving piece, the mounting structure of the resin component according to claim 1, characterized by being configured by the ribs like pieces. 前記リブ状片は、平面視十字状に形成されたことを特徴とする請求項２記載の樹脂部品の取付け構造。The resin part mounting structure according to claim 2 , wherein the rib-shaped piece is formed in a cross shape in a plan view.
JP2002113361A 2002-04-16 2002-04-16 Resin parts mounting structure Expired - Fee Related JP3939185B2 (en)

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JP6307233B2 (en) * 2013-09-18 2018-04-04 シロキ工業株式会社 Frame mall with garnish
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JP6529891B2 (en) * 2015-11-04 2019-06-12 テイ・エス テック株式会社 Vehicle interior materials
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Publication number Priority date Publication date Assignee Title
EP2912929A1 (en) * 2012-10-23 2015-09-02 Valeo Systèmes de Contrôle Moteur Housing including a sealed heading
US20150282351A1 (en) * 2012-10-23 2015-10-01 Valeo Systemes De Controle Moteur Housing including a sealed heading

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