JP3370850B2 - 合成樹脂製品におけるかしめ式締結機構 - Google Patents

合成樹脂製品におけるかしめ式締結機構

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Publication number
JP3370850B2
JP3370850B2 JP13478696A JP13478696A JP3370850B2 JP 3370850 B2 JP3370850 B2 JP 3370850B2 JP 13478696 A JP13478696 A JP 13478696A JP 13478696 A JP13478696 A JP 13478696A JP 3370850 B2 JP3370850 B2 JP 3370850B2
Authority
JP
Japan
Prior art keywords
caulking
synthetic resin
caulking pin
fastening mechanism
type fastening
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
JP13478696A
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English (en)
Other versions
JPH09314673A (ja
Inventor
恭史 早川
さとし 山之内
Original Assignee
高島屋日発工業株式会社
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Priority to JP13478696A priority Critical patent/JP3370850B2/ja
Publication of JPH09314673A publication Critical patent/JPH09314673A/ja
Application granted granted Critical
Publication of JP3370850B2 publication Critical patent/JP3370850B2/ja
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—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
    • B29C65/78—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30221—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being point-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to 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
    • B29C66/50—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
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form 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
    • B29C66/70—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
    • 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
    • B29C66/81—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
    • B29C66/80—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
    • B29C66/81431—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 cavity, e.g. a groove
    • 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
    • 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

Landscapes

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

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、ガタツキ等を生じ
ることなく強固に締結することができる合成樹脂製品に
おけるかしめ式締結機構に関するものである。
【０００２】
【従来の技術】例えば、ドアトリム等の自動車用内装材
では熱可塑性の合成樹脂よりなるトリム成形基板にかし
めピンを突設して、これに被取付部材を嵌めたうえ該か
しめピンの遊端を高周波や超音波ホーン等で溶融固化さ
れた抜け止め用頭部に成形することにより被取付部材を
固定することが従来より広く行われている（例えば、実
開昭６２−１１４７２４号公報や特開平２−１３０１３
０号公報など参照）。
【０００３】ところが、前記の成形基板と被取付部材と
は通常同材質であるため、かしめ締結を強固にしようと
すると、かしめピンのみならず被取付部材までも溶融し
てしまい糸引き等のバリを生じて外観不良を発生させる
という問題点があり、一方、これを避けるためにかしめ
締結を弱めに行うとガタツキが生じて異音発生の要因に
なるという問題点があって、このかしめ締結力を最適値
に設定するのが容易でなく作業性を低下させる要因とな
っていた。
【０００４】
【発明が解決しようとする課題】本発明は上記のような
従来の問題点を解決して、糸引き等の外観不良やガタツ
キを発生させることなく、しかも強固な締結力を確保す
ることができるとともに、かしめ締結力の設定も容易で
作業性を大幅に向上することができる合成樹脂製品にお
けるかしめ式締結機構を提供することを目的として完成
されたものである。
【０００５】
【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合成樹脂製品におけるかしめ式締
結機構は、熱可塑性の合成樹脂よりなる成形基板にかし
めピンを突設して、これに被取付部材を嵌めたうえ該か
しめピンの遊端を溶融固化された抜け止め用頭部に成形
することにより被取付部材を固定する合成樹脂製品にお
けるかしめ式締結機構において、前記被取付部材の内側
下方部には段部が形成されて該段部に成形基板の湾曲先
端部を当接した状態で位置決めしてあるとともに、かし
めピン嵌め込み部の周辺には連結用凸部が形成され、該
連結用凸部を前記抜け止め用頭部に埋め込んだ状態でか
しめ締結してあることを特徴とするものであり、前記し
た発明において、被取付部材に設けられたかしめピン嵌
め込み部をその端縁が開口された切り欠き溝としたもの
を請求項２に係る発明とするものである。
【０００６】
【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示す。図面は、自動車用ドアト
リムにおけるトリム本体と蓋体とをかしめ締結した場合
を示すものであって、図中１は熱可塑性合成樹脂よりな
るトリム本体である成形基板、１０はこの成形基板１に
かしめ締結される同材質の合成樹脂よりなる蓋体として
の被取付部材である。そして、前記の成形基板１にはか
しめピン２が突設されてこれに被取付部材１０のピンは
め込み部を嵌めたうえ、かしめピン２の遊端を溶融固化
された抜け止め用頭部３に成形することにより被取付部
材１０を固定するものである点は、従来のこの種の合成
樹脂製品におけるかしめ式締結機構と基本的に同じであ
る。
【０００７】そして、前記被取付部材１０の内側下方部
には段部１０ａが形成され、該段部１０ａに成形基板１
の湾曲先端部１ａを当接した状態で位置決めしてあると
ともに、かしめピン嵌め込み部１０ｂの周辺には連結用
凸部１１が形成され、この連結用凸部１１を前記抜け止
め用頭部３に埋め込んだ状態でかしめ締結してある点を
特徴的構成としている。このように被取付部材１０の内
側下方部には段部１０ａを形成してこの段部１０ａに成
形基板１の湾曲先端部１ａを当接した状態で位置決めす
ることによって、成形基板１と被取付部材１０との位置
合せを容易なものとするとともに、後述するかしめピン
２とかしめピン嵌め込み部１０ｂとの位置合せも同時に
行えるよう構成されている。
【０００８】また、被取付部材１０のかしめピン嵌め込
み部１０ｂにはかしめピン挿入用の透孔が形成されてい
るとともに、透孔の周辺部には等間隔で４個の連結用凸
部１１が形成され、１点鎖線で表示したように、例え
ば、超音波ホーンでかしめピン２の遊端を溶融固化して
抜け止め用頭部３とした場合に、連結用凸部１１の先端
部が抜け止め用頭部３の下面側において埋め込まれた状
態でかしめ締結されることにより、被取付部材１０が成
形基板１に対しガタツキ等を生じることなく強固に締結
されるよう構成されている。つまり、本発明は従来のよ
うにかしめピンの遊端をかしめピン嵌め込み部の周辺部
に平面的且つ全体的に溶融固化させるのと異なり、連結
用凸部１１に対しスポット的に溶融固化させるものであ
るので、被取付部材１０までも溶融して糸引き等のバリ
を発生させることがなく、しかも強固な締結力が確保さ
れることとなるのである。
【０００９】なお、前記被取付部材１０のかしめピン嵌
め込み部１０ｂは、かしめピン２に対応した透孔を形成
しておくのを普通とするが、図２に示されるようにその
端縁が開口された切り欠き溝１２とすることもでき、こ
の場合には切り欠き溝１２の開口部側をかしめピン２に
対して差し込むようにして組付ければよいので、従来の
透孔タイプのものに比べて設計の自由度を大幅に広げる
ことが可能となり、また強固な締結力の確保も勿論可能
である。更に、図３に示されるように、かしめピン２の
下方部に被取付部材固定用のフィン４を有するタイプの
ものにも同様に適用できることも勿論である。
【００１０】次に、上記自動車用ドアトリムのかしめ締
結工程について簡単に説明すると、図４に示されるよう
に、各々のかしめピン２を被取付部材１０のかしめピン
嵌め込み部１０ｂに嵌め込むとともに、下側より受け台
２０ａ、２０ｂを介して回転および上下動自在なアーム
２１により支持し、超音波ホーン２２ａ、２２ｂにより
かしめピンの遊端を溶融固化させる。この場合、被取付
部材１０の内側下方部には段部１０ａが形成されてお
り、該段部１０ａに成形基板１の湾曲先端部１ａを当接
した状態で位置決めするのみで成形基板１と被取付部材
１０との位置合せを確実なものとできるうえ、更にはこ
れと同時に、かしめピン２とかしめピン嵌め込み部１０
ｂとの位置合せも行えることとなる。また、前記の嵌め
込み工程はかしめピン嵌め込み部１０ｂを切り欠き溝１
２としてあり、切り欠き溝１２の開口部側をかしめピン
２に対して差し込むようにして組付けるのみで簡単かつ
短時間で行えることとなる。
【００１１】そして、かしめ工程の際に超音波ホーンの
締結力を若干弱めに設定しておくことにより連結用凸部
１１が抜け止め用頭部３に埋め込んだ状態でかしめ締結
が行われ、糸引き等のバリやガタツキを発生させること
がなく、しかも強固な締結力が確保されることとなる。
また、上記のように連結用凸部１１が抜け止め用頭部３
に埋め込んだ状態でかしめ締結を行うので、外気の温度
差や超音波ホーンの圧力変化等の管理条件に幅を持たせ
ても十分強固な締結力が確保されることとなり、従来の
ような困難な締結力の設定をすることなく締結作業を容
易に行えることとなる。
【００１２】
【発明の効果】以上の説明からも明らかなように、本発
明は糸引き等の外観不良やガタツキを発生させることな
く、しかも強固な締結力を確保することができるととも
に、かしめ締結力の設定も容易で作業性を大幅に向上す
ることができるものである。よって本発明は従来の問題
点を一掃した合成樹脂製品におけるかしめ式締結機構と
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】本発明の実施の形態を示す断面図である。
【図２】その他の実施の形態を示す斜視図である。
【図３】その他の実施の形態を示す正面図である。
【図４】超音波ホーンによるかしめ締結工程を示す正面
図である。
【符号の説明】
１ 成形基板 1a 湾曲先端部 ２ かしめピン ３ 抜け止め用頭部 10 被取付部材 10a 段部 10b かしめピン嵌め込み部 11 連結用凸部 12 切り欠き溝
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 65/00 - 65/82 F16B 5/00 - 5/12

Claims (2)

    (57)【特許請求の範囲】
  1. 【請求項１】 熱可塑性の合成樹脂よりなる成形基板
    (1) にかしめピン(2)を突設して、これに被取付部材(1
    0)を嵌めたうえ該かしめピン(2) の遊端を溶融固化され
    た抜け止め用頭部(3) に成形することにより被取付部材
    (10)を固定する合成樹脂製品におけるかしめ式締結機構
    において、前記被取付部材(10)の内側下方部には段部(1
    0a) が形成されて該段部(10a) に成形基板(1) の湾曲先
    端部(1a)を当接した状態で位置決めしてあるとともに、
    かしめピン嵌め込み部(10b) の周辺には連結用凸部(11)
    が形成され、該連結用凸部(11)を前記抜け止め用頭部
    (3)に埋め込んだ状態でかしめ締結してあることを特徴
    とする合成樹脂製品におけるかしめ式締結機構。
  2. 【請求項２】 被取付部材(10)に設けるかしめピン嵌め
    込み部(10b) を被取付部材(10)の端縁に向け開口された
    切り欠き溝(12)としてある請求項１に記載の合成樹脂製
    品におけるかしめ式締結機構。
JP13478696A 1996-05-29 1996-05-29 合成樹脂製品におけるかしめ式締結機構 Expired - Fee Related JP3370850B2 (ja)

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JPH09314673A JPH09314673A (ja) 1997-12-09
JP3370850B2 true JP3370850B2 (ja) 2003-01-27

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JP2015010348A (ja) * 2013-06-27 2015-01-19 株式会社ワイテック 鋼製束
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