JPH0371978B2 - - Google Patents

Info

Publication number
JPH0371978B2
JPH0371978B2 JP58109403A JP10940383A JPH0371978B2 JP H0371978 B2 JPH0371978 B2 JP H0371978B2 JP 58109403 A JP58109403 A JP 58109403A JP 10940383 A JP10940383 A JP 10940383A JP H0371978 B2 JPH0371978 B2 JP H0371978B2
Authority
JP
Japan
Prior art keywords
hot melt
pen tip
fitted
melt adhesive
plastic
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 - Lifetime
Application number
JP58109403A
Other languages
English (en)
Other versions
JPS602339A (ja
Inventor
Katsuo Midorikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyopolymer Co Ltd
Original Assignee
Toyopolymer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyopolymer Co Ltd filed Critical Toyopolymer Co Ltd
Priority to JP58109403A priority Critical patent/JPS602339A/ja
Publication of JPS602339A publication Critical patent/JPS602339A/ja
Publication of JPH0371978B2 publication Critical patent/JPH0371978B2/ja
Granted 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
    • B29C66/50—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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • 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
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • B29C65/1467—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29L2009/00—Layered products
    • 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
    • B29L2023/00—Tubular articles
    • 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
    • B29L2031/725—Drawing or writing equipment
    • B29L2031/7252—Pens, ball-point pens
    • 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
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/75—Shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は二重押出成型物に相手部材を嵌合固定
する製品の製造方法に関するものである。
（従来技術と本発明の目的、構成） 従来ボールペンなどの製造において、連続して
押出されたプラスチツク押出部材にプラスチツク
製相手部材を固定するにはプラスチツク押出部材
にプラスチツク製相手部材を圧入嵌合している。
（前者） また相手部材が金属の場合は第６図のように金
属の相手部材１４をめて固定している。（後者） 前者の場合は、外側の部材の内径を内側の部材
の外径より多少小さくして圧入するに必要な強度
を得ている。しかし、この場合は材質の劣化など
とともに、圧入強度が緩み、往々にして外側部材
が抜けてしまうことがあり、必要な嵌合強度を得
ることは困難である。
後者の場合は、外側の相手部材を強くめすぎ
ると、第６図のように内側のプラスチツクペンチ
ツプ１２のインキ流通孔１１が塞がれてしまうな
どの問題点を生ずる。
また、通常の接着剤を用いてプラスチツク押出
部材に相手部材を接着する場合もあるが、いづれ
かの部材が通常の接着剤で接着できない場合はこ
の方法は採用できない。
本発明は以上のような従来のこの種、押出成型
物に相手部材を固定する製品の製造方法の問題点
を解決しようとするものである。すなわち本発明
は以下述べるように、相手部材２を嵌合固定する
ための二重押出成型物１を用い、この二重押出成
型物１の相手部材２を嵌合固定する面にホツトメ
ルト系接着剤の膜３を形成しておき、両者を嵌合
後、該ホツトメルト系接着剤の膜３を加熱溶融せ
しめて、両者を固着する構成を有するものであ
る。このような構成により本発明は必要な接着強
度が容易に得られ各々の部材に損傷を与えること
なく、かつ、大量生産の可能な二重押出成型物に
相手部材を嵌合固定する製品の製造方法を提供し
ようとするものである。
以下図面に記載された本発明方法の実施例につ
いて説明する。
（第１実施例の説明） 第１〜３図に示すようにたとえばボールペンを
製造する際、ボールペンは軸体１先端にペン先２
を嵌入して形成される。
本発明においては、軸体１は二重押出成型法に
より、内周面にマレイン酸変性ポリプロピレンな
どのホツトメルト系接着剤を厚さ20〜50ミクロン
程度の膜３を形成する。そしてペン先２をその先
端に嵌め込んだ後、外部からホツトメルト系接着
剤の膜３の温度が150〜160℃になるように加熱す
る。するとホツトメルト系接着剤の膜３は溶融
し、冷却固化すると、軸体１とペン先２とは強固
に接着固定される。
（第２実施例の説明） つぎに第４〜５図記載の第２実施例について説
明する。
第４〜５図はインキ流通孔１１を有するプラス
チツクペンチツプ１２に金属チユーブ１４を嵌合
する場合を示している。
第４図のようにプラスチツクペンチツプ１２の
外周面にホツトメルト系接着剤の膜１３を二重押
出成型法により形成しておく。そして金属チユー
ブ１４をプラスチツクペンチツプ１２に嵌挿した
後、加熱冷却すると、金属チユーブ１４とプラス
チツクペンチツプ１２とは強固に接着固定され
る。
第６図のように従来は粘性のある接着剤を用い
ていたので金属チユーブ１４をめて、内外側部
材の嵌合強度を補強していた。しかし金属チユー
ブ１４をめると、プラスチツクペンチツプ１２
を押しつぶしてインキ流通孔１１が塞がれてしま
うことがある。
一般の粘性のある接着剤を用いた場合は外側部
材の内径を内側部材の外径より幾分小さくしてお
き、さらに第６図のように両者の嵌合強度を得る
ため、外側部材を外側からめていた。しかし、
このようにめると、たとえばペン先はペンチツ
プ内のインキ流通孔を塞いでしまうという難点が
ある。
本発明では常温では固形のホツトメルト接着剤
を用いたので、ホツトメルトが加熱されて常温固
形状態から一旦膨張して、冷却固化され、内外部
材を強力に結合するので、特に外側部材をめな
くても内外部材が抜け出るというおそれはない。
また従来のように特に外側部材の内径を内側部
材の外径より小さくする必要もないので、嵌合部
の材質の劣化も起こらない。
またホツトメルト系接着剤は常温では固化した
状態にあるので二重押出成型物として成型可能で
ある。したがつて、連続生産が可能である。
換言すれば本発明は内外側部材の接着剤として
常温で固化した状態によるホツトメルト系接着剤
を選択した点を出発点とするものである。
【図面の簡単な説明】
（第１実施例） 第１図：軸体１にペン先２を取付けた場合の断
面図、第２図：同じく軸体１の断面図、第３図：
第２図−矢視図、 （第２実施例） 第４図：プラスチツクペンチツプ１２の断面図、
第５図：プラスチツクペンチツプ１２に金属チユ
ーブ１４を嵌合したときの断面図、 （従来例） 第６図：金属チユーブ１４をめた場合の断面
図、 （第１〜３図） １……軸体、２……ペン先、３……ホツトメル
ト系接着剤の膜、 （第４〜６図） １１……インキ流通孔、１２……プラスチツク
ペンチツプ、１３……ホツトメルト系接着剤の
膜、１４……金属チユーブ。

Claims (1)

  1. 【特許請求の範囲】 １ 相手部材２，１４を嵌合固定する二重押出成
    型物１，１２を用い、該二重押出成型物１，１２
    は相手部材２，１４を嵌合固定する面にホツトメ
    ルト系接着剤の膜３，１３を設け、二重押出成型
    物１，１２に相手部材２，１４を嵌合固定し、外
    部から加熱してホツトメルト系接着剤の膜３，１
    ３を溶融せしめた後、冷却して相手部材２，１４
    を接着固定する、 ことを特徴とする二重押出成型物に相手部材を嵌
    合固定する製品の製造方法。
JP58109403A 1983-06-20 1983-06-20 二重押出成型物に相手部材を嵌合固定する製品の製造方法 Granted JPS602339A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58109403A JPS602339A (ja) 1983-06-20 1983-06-20 二重押出成型物に相手部材を嵌合固定する製品の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58109403A JPS602339A (ja) 1983-06-20 1983-06-20 二重押出成型物に相手部材を嵌合固定する製品の製造方法

Publications (2)

Publication Number Publication Date
JPS602339A JPS602339A (ja) 1985-01-08
JPH0371978B2 true JPH0371978B2 (ja) 1991-11-15

Family

ID=14509357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58109403A Granted JPS602339A (ja) 1983-06-20 1983-06-20 二重押出成型物に相手部材を嵌合固定する製品の製造方法

Country Status (1)

Country Link
JP (1) JPS602339A (ja)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896515A (ja) * 1981-12-03 1983-06-08 Mitsubishi Electric Corp 金属継手のパイプへの接合方法

Also Published As

Publication number Publication date
JPS602339A (ja) 1985-01-08

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