JP3390119B2 - ブラケット部品の取付方法 - Google Patents

ブラケット部品の取付方法

Info

Publication number
JP3390119B2
JP3390119B2 JP30946596A JP30946596A JP3390119B2 JP 3390119 B2 JP3390119 B2 JP 3390119B2 JP 30946596 A JP30946596 A JP 30946596A JP 30946596 A JP30946596 A JP 30946596A JP 3390119 B2 JP3390119 B2 JP 3390119B2
Authority
JP
Japan
Prior art keywords
horn
base material
synthetic resin
ultrasonic
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP30946596A
Other languages
English (en)
Other versions
JPH10156555A (ja
Inventor
浩二 村尾
Original Assignee
高島屋日発工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 高島屋日発工業株式会社 filed Critical 高島屋日発工業株式会社
Priority to JP30946596A priority Critical patent/JP3390119B2/ja
Publication of JPH10156555A publication Critical patent/JPH10156555A/ja
Application granted granted Critical
Publication of JP3390119B2 publication Critical patent/JP3390119B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/81425—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 stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—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

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は低コストで強い接着
強度を得ることができるブラケット部品の取付方法に関
するものである。
【０００２】
【従来の技術】例えば、自動車用ドアトリム等における
発泡合成樹脂材からなる基材に対し、これと同系の非発
泡合成樹脂よりなるリテーナ取付用ブラケット部品を取
付一体化する方法としては、超音波振動を用いて溶着す
る方法が知られている。このような方法の一つとして
は、ブラケット部品の溶着面に多数の溶着用突起を設け
ておいてこの突起を超音波振動により溶かして基材に取
付一体化する超音波伝達溶着法と称される方法がある
が、発泡合成樹脂材からなる基材は超音波振動を吸収し
てしまう性質があるので突起が十分に溶融せずに未接着
部分が生じてしまうという現象が起き、十分な接着強度
が得られないという問題点があった。また、ブラケット
部品に対しスポット的に超音波ホーンを当ててその接触
面を溶かして基材に取付一体化する超音波スポット溶着
法と称される方法もあるが、溶融樹脂の熱により基材側
の発泡合成樹脂が崩壊してしまい、溶着面に隙間が生じ
て接着強度の低下を招くという問題点があった。一方、
超音波振動を用いずにクリップやリベット等により機械
的に取り付ける方法も知られているが、部品点数が増え
ることにより重量アップや生産コストアップになるとい
う問題点があった。
【０００３】
【発明が解決しようとする課題】本発明が解決しようと
するところは上記のような従来の問題点を解決して、基
材が発泡合成樹脂材からなる場合でもブラケット部品の
溶融させたい部分が的確容易に溶融して基材に対して溶
着面との間に隙間を発生することなく接着されて十分な
接着強度を保証することができ、しかも、取付作業も簡
単で低コストで生産できるようにするブラケット部品の
取付方法を提供することにある。
【０００４】
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明のブラケット部品の取付方法は、合
成樹脂材からなる基材とその表面に添わせた合成樹脂材
からなるブラケット部品の溶着しようとする部位を、超
音波溶接機用の超音波ホーンによる加圧でそのホーン突
起部が当接される部分の近辺とこれに対応する基材の一
部を超音波振動により溶融してこの溶融樹脂によりブラ
ケット部品を基材表面に溶着一体化するようにしたブラ
ケット部品の取付方法において、超音波溶接機用の超音
波ホーンとして、ホーン本体の先端に外周が短脚枠部に
より囲まれる浅い凹部を形成するとともにその中央にホ
ーン突起部を突設してこのホーン突起部と短脚枠部との
間に残された前記凹部の内底面を押さえ用の環状平面部
に形成したものを用いる一方、前記ブラケット部品の溶
着面には予め溶融樹脂を受け入れる溝部を形成して お
き、ホーン突起部による加圧で溶融した溶融樹脂が短脚
枠部により横方向へ拡がることなく押さえ用の環状平面
部によって溝部内へ押し込まれるようにしながら溶着す
ることを特徴とするものである。
【０００５】
【発明の実施の形態】以下に、図面を参照しつつ本発明
の好ましい実施の形態を、自動車用ドアトリムの基材の
表面にリテーナ取付用のブラケット部品を超音波振動に
より溶着一体化する場合について詳細に説明する。１は
発泡ポリプロピレン樹脂などの超音波溶融可能な発泡合
成樹脂材からなる基材、２はこの基材１の表面に重ねて
部分的に超音波溶接しようとする非発泡のポリプロピレ
ン樹脂よりなるリテーナ取付用のブラケット部品であ
る。このブラケット部品２の溶着面には後記する超音波
ホーン１１によって溶着される溶融部３と、この溶融部
３に沿った溝部４が形成され、この溝部４は必要に応じ
て連通する多数の枝溝部を有したものとしている。な
お、前記した基材１は発泡合成樹脂材からなるものとす
る一方、ブラケット部品２は前記基材１と同系ではある
が非発泡の合成樹脂材からなるものとしたが、両者を非
発泡の合成樹脂材からなるものとしたり、両者を発泡合
成樹脂材からなるものとしてもよい。しかしながら、両
者を発泡合成樹脂材からなるものとするときは、ブラケ
ット部品２を基材１より剛性のあるものとするのを普通
とする。
【０００６】一方、超音波ホーン１１は、ホーン本体１
２の先端に外周が長さが１mm程度の短脚枠部１３により
囲まれる浅い凹部１４を形成するとともに、その中央に
ホーン突起部１５を突設してこのホーン突起部１５と短
脚枠部１３との間に残された前記凹部１４の内底面を押
さえ用の環状平面部１６に形成したものとしている。
【０００７】また、前記したようなブラケット部品２を
基材１に超音波溶接機による超音波振動を用いて溶着す
るには、図２ａに示すように、基材１の表面にブラケッ
ト部品２を前記溝部４が形成されている面を基材１の表
面に当接させて添装し、ブラケット部品２の溶着面の裏
側から前記溶融部３に超音波ホーン本体１１の先端より
突出するホーン突起部１５を当てて加圧振動させると、
この振動が溶融部３に伝達されて溶融部３の溶融面は徐
々に溶け出し、続いて、この溶融部３の溶融樹脂が図２
ｂに示されるように溝部４内へ分散して流入する。この
とき、溶融樹脂の一部はブラケット部品２の表面に流出
するが、更に加圧が続けられるとブラケット部品２の表
面に流出した溶融樹脂は図２ｃに示すように、凹部１４
の内底面に形成されている押さえ用の環状平面部１６に
よって溝部４内へ強制的に流し込んで溶着面積を増大さ
せることとなる。このとき、凹部１４の外周は短脚枠部
１３により囲まれているため、この短脚枠部１３が溶融
樹脂の外部への流出を的確に防ぐこととなる。また、短
脚枠部１３は前記したように極めて短くしてあるので、
短脚枠部１３により形成される環状凹溝でブラケット部
品２の板厚が大きく変化することはなく、ブラケット部
品２の強度低下が起こることはない。そして、溶融部３
の溶融面と溝部４内を埋めた溶融樹脂とが略同一面とな
ってこの溶融樹脂が接着剤としての機能を発揮すると、
ブラケット部品２は基材１に的確に溶着一体化されるこ
ととなる。
【０００８】この場合、接着剤としての機能を奏する溶
融樹脂は溝部４を埋めて溶着面積が大きくなっているの
で、単純なスポット的な溶着に比べると両者間の接着強
度は著しく増大することとなり、また、従来のスポット
溶着法においては、溶融樹脂の熱により基材１側の樹脂
が崩壊してしまい、溶着面に隙間が生じるという現象が
あったが、本願発明の方法においては溶融樹脂が溝部４
内へ分散して流入することにより熱エネルギーも分散さ
れ、このため、基材１を発泡合成樹脂よりなるものと
し、ブラケット部品２を非発泡合成樹脂などの前記基材
１より剛性のあるものを使用した場合でも基材１側の樹
脂が部分的に崩壊されることもなく、崩壊にともなう隙
間発生により接着強度が低下するという問題が生じるこ
とがない。
【０００９】なお、ブラケット部品２の溶着面に設ける
溶融部３と溝部４の形状としては、図５に示されるよう
に円筒状の溶融部３にその周囲を囲った環状の溝部４と
したり、図６に示されるように更に前記環状の溝部４か
ら更に放射状に溝部４ａを延長したり、図７に示される
ように溶融部３の周囲に放射状に延びた溝部４を形成し
たものとするなど設計条件に応じて適宜設計できること
はいうまでもない。
【００１０】
【発明の効果】本発明は以上の説明からも明らかなよう
に、合成樹脂材からなる基材とその表面に添わせた合成
樹脂材からなるブラケット部品の溶着しようとする部位
を、超音波溶接機用の超音波ホーンによる加圧でそのホ
ーン突起部が当接される部分の近辺とこれに対応する基
材の一部を超音波振動により溶融してこの溶融樹脂によ
りブラケット部品を基材表面に溶着一体化するようにし
たブラケット部品の取付方法において、超音波溶接機用
の超音波ホーンとして、ホーン本体の先端に外周が短脚
枠部により囲まれる浅い凹部を形成するとともにその中
央にホーン突起部を突設してこのホーン突起部と短脚枠
部との間に残された前記凹部の内底面を押さえ用の環状
平面部に形成したものを用いる一方、前記ブラケット部
品の溶着面には予め溶融樹脂を受け入れる溝部を形成し
ておき、ホーン突起部による加圧で溶融した溶融樹脂が
短脚枠部により横方向へ拡がることなく押さえ用の環状
平面部によって溝部内へ押し込まれるようにしながら溶
着するようにしたので、合成樹脂材からなる基材とその
表面に添わせた合成樹脂材からなるブラケット部品の溶
着しようとする部位を的確に溶融してこの溶融樹脂によ
りブラケット部品を基材表面に溶着一体化することがで
きる。また、基材表面に対しブラケット部品を相互間に
隙間を発生することなく十分な接着強度をもって溶着一
体化することができるうえに取付作業も簡単で低コスト
で生産することができ、しかも、クリップ等の別部品も
必要としないので重量の軽減化もできるなど種々の利点
がある。よって本発明は従来の問題点を一掃したブラケ
ット部品の取付方法として、産業の発展に寄与するとこ
ろは極めて大である。
【図面の簡単な説明】
【図１】本発明に用いる超音波溶接機用の超音波ホーン
を示す要部の一部切欠正面図である。
【図２】本発明に係るブラケット部品の取付方法の工程
説明図である。
【図３】本発明に用いられるブラケット部品の１例を示
す斜視図である。
【図４】本発明に用いられるブラケット部品の１例を示
す溶着面側から見た斜視図である。
【図５】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。
【図６】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。
【図７】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。
【符号の説明】
１ 基材 ２ ブラケット部品 ３ 溶融部 ４ 溝部 11 超音波ホーン 12 ホーン本体 13 短脚枠部 14 浅い凹部 15 ホーン突起部 16 押さえ用の環状平面部

Claims (2)

    (57)【特許請求の範囲】
  1. 【請求項１】 合成樹脂材からなる基材とその表面に添
    わせた合成樹脂材からなるブラケット部品の溶着しよう
    とする部位を、超音波溶接機用の超音波ホーンによる加
    圧でそのホーン突起部が当接される部分の近辺とこれに
    対応する基材の一部を超音波振動により溶融してこの溶
    融樹脂によりブラケット部品を基材表面に溶着一体化す
    るようにしたブラケット部品の取付方法において、超音
    波溶接機用の超音波ホーンとして、ホーン本体の先端に
    外周が短脚枠部により囲まれる浅い凹部を形成するとと
    もにその中央にホーン突起部を突設してこのホーン突起
    部と短脚枠部との間に残された前記凹部の内底面を押さ
    え用の環状平面部に形成したものを用いる一方、前記ブ
    ラケット部品の溶着面には予め溶融樹脂を受け入れる溝
    部を形成しておき、ホーン突起部による加圧で溶融した
    溶融樹脂が短脚枠部により横方向へ拡がることなく押さ
    え用の環状平面部によって溝部内へ押し込まれるように
    しながら溶着することを特徴とするブラケット部品の取
    付方法。
  2. 【請求項２】 基材を発泡合成樹脂よりなるものとし、
    ブラケット部品を非発泡合成樹脂よりなるものとする請
    求項１に記載のブラケット部品の取付方法。
JP30946596A 1996-11-20 1996-11-20 ブラケット部品の取付方法 Expired - Fee Related JP3390119B2 (ja)

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JPH10156555A JPH10156555A (ja) 1998-06-16
JP3390119B2 true JP3390119B2 (ja) 2003-03-24

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000263248A (ja) * 1999-03-16 2000-09-26 Harness Syst Tech Res Ltd 溶接方法
JP4683917B2 (ja) * 2004-12-28 2011-05-18 日本プラスト株式会社 樹脂部品の位置決め溶着構造
JP4811175B2 (ja) * 2006-07-31 2011-11-09 Ａｐｓジャパン株式会社 樹脂成形体と柱状体との組付品およびその製造方法、並びに製造装置
JP5119414B2 (ja) * 2009-05-28 2013-01-16 精電舎電子工業株式会社 超音波溶着方法、超音波溶着機、および樹脂成形品付き電子機器
JP5782720B2 (ja) * 2011-01-20 2015-09-24 日産自動車株式会社 超音波接合装置
JP6010641B2 (ja) 2015-01-28 2016-10-19 富士重工業株式会社 樹脂部材及び樹脂部材の接合方法
JP6006822B2 (ja) 2015-03-19 2016-10-12 富士重工業株式会社 樹脂部材
WO2017115490A1 (ja) * 2015-12-28 2017-07-06 ダイキン工業株式会社 遠心ファンの羽根車、その製造方法及び製造装置
JP6056952B1 (ja) * 2015-12-28 2017-01-11 ダイキン工業株式会社 遠心ファンの羽根車及びその製造方法
JP6827386B2 (ja) * 2017-08-15 2021-02-10 イーグル工業株式会社 超音波接合治具、超音波接合方法および接合構造
WO2023058525A1 (ja) * 2021-10-04 2023-04-13 キョーラク株式会社 発泡成形用樹脂及びその製造方法、発泡成形体の製造方法、構造体の製造方法

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