JP2000079638A - 超音波融着用樹脂成形体 - Google Patents

超音波融着用樹脂成形体

Info

Publication number
JP2000079638A
JP2000079638A JP10250524A JP25052498A JP2000079638A JP 2000079638 A JP2000079638 A JP 2000079638A JP 10250524 A JP10250524 A JP 10250524A JP 25052498 A JP25052498 A JP 25052498A JP 2000079638 A JP2000079638 A JP 2000079638A
Authority
JP
Japan
Prior art keywords
ultrasonic
fusion
composite sheet
heat
rib
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.)
Pending
Application number
JP10250524A
Other languages
English (en)
Inventor
Kiyoshi Wada
潔 和田
Naoko Tsuji
直子 辻
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP10250524A priority Critical patent/JP2000079638A/ja
Publication of JP2000079638A publication Critical patent/JP2000079638A/ja
Pending legal-status Critical Current

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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
    • B29C65/02—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
    • 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
    • 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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/30223—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 rib-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
    • B29C66/50—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
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • 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
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/81431—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
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】 【課題】容器上面部の内面にフランジ板５を超音波ホー
ン１０にて加熱融着させた際にフランジ板５が薄化する
現象を防止する。 【解決手段】厚紙を主体とした紙製複合シート２０の熱
融着性樹脂層２２表面に超音波加熱手段Ｃにて融着する
超音波融着用樹脂成形体３０であって、その融着面に突
出する割れ防止用のリブ３１を設けた。

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、熱融着性樹脂層を
表面に有する紙を主体とした紙製複合シートの表面に、
超音波加熱手段にて融着するための超音波融着用樹脂成
形体に関する。
【０００２】
【従来の技術】一般に、ポリエチレンやポリプロピレン
などポリオレフィン系の熱融着性樹脂層を表面に有する
厚紙を主体とした紙製複合シートの表面にポリエチレン
やポリプロピレンなどポリオレフィン系の熱融着性樹脂
による樹脂成形体を熱融着する場合には、前記紙製複合
シートの表面に樹脂成形体を密着させ、その樹脂成形体
の上から超音波加熱ホーンなど超音波加熱手段を押圧し
て、該シートと成形体との融着すべき個所を密接させな
がら超音波を掛け加熱融着するようにしている。
【０００３】図５は、紙製液体包装容器Ａに、その容器
Ａの内側から内付け式の口栓Ｂを取り付ける状態を示す
側断面図である。
【０００４】紙製複合シートにて製函された容器Ａは周
囲側面部１と上面部２と底面部３とを備え、上面部２に
は口栓取付用の孔設部２ａが設けられ、その容器Ａの内
面側からポリオレフィン系の熱溶融性樹脂製の口栓Ｂの
筒部４（４ａはネジ部）を嵌挿し、その筒部４の下端外
周に一体に設けたリング状のフランジ板５の上面を容器
Ａの上面部２内面（ポリオレフィン系の熱溶融性樹脂フ
ィルム層６）と密着させ、該フランジ板５の下面に容器
底部より挿入した受板１１、上面部２の外面上方に超音
波ホーン１０を設置して、超音波ホーン１０と受板１１
との間で、上面部２とフランジ板５とを押圧しながら超
音波を印加してその密着内面を加熱融着させて取り付け
るものである。
【０００５】
【発明が解決しようとする課題】しかしながら、超音波
ホーン１０を押圧して密着内面を融着させた際に、図６
に示すように、上面部２内面の熱溶融性樹脂フィルム層
６が超音波振動によって伸び、また超音波ホーン１０先
端部による上面部２に対する押圧力も加味して、前記フ
ィルム層６が融着したフランジ板５の樹脂内に入り込
み、フランジ板５は前記フィルム層６が入り込んだ部分
５ａが薄化して割れ易くなるという問題があった。
【０００６】本発明は、上記問題を解消するための発明
であって、容器上面部の内面にフランジ板５を超音波ホ
ーン１０にて加熱融着させた際に、フランジ板５が薄化
する現象を防止することを課題とするものである。
【０００７】
【課題を解決するための手段】本発明の請求項１に係る
発明は、厚紙を主体とした紙製複合シートの熱融着性樹
脂層表面に超音波加熱手段にて融着する超音波融着用樹
脂成形体であって、その融着面に突出するクラック防止
用リブを設けたことを特徴とする超音波融着用樹脂成形
体である。
【０００８】また本発明の請求項２に係る発明は、上記
請求項１に係る発明において、前記超音波融着用樹脂成
形体が、前記紙製複合シートにより形成された紙製液体
包装容器の内付け式口栓である超音波融着用樹脂成形体
である。
【０００９】
【作用】本発明の超音波融着用樹脂成形体３０は、その
融着面にリブ３１が設けられているので、超音波加熱手
段Ｃの超音波ホーン１０先端部による超音波振動による
加熱と押圧とによって、複合シート２０は成形体３０側
に加熱加圧され、その複合シート２０の熱融着性樹脂層
２２は溶融しながら加圧されて超音波ホーン１０先端部
の外周に対応する部分において伸びるものの、伸びた熱
融着性樹脂層２２は成形体３０の内部に入り込むことは
なくリブ３１によって食い止められて、成形体３０の融
着面側には薄化現象が発生せずクラックの発生が防止で
きるものである。
【００１０】
【発明の実施の形態】本発明の超音波融着用樹脂成形体
を、その実施の形態に基づいて図面に従って以下に詳細
に説明する。
【００１１】図１は、本発明の超音波融着用樹脂成形体
３０の側面図であり、本発明の成形体３０はポリオレフ
ィン系樹脂により成形加工されたものであり、厚紙２１
を主体とした紙製複合シート２０のポリオレフィン系の
熱融着性樹脂層２２表面に超音波加熱手段Ｃにて融着す
るものである。
【００１２】前記成形体３０には、その成形体３０と同
一樹脂により一体に成形されて融着面より突出する割れ
防止用のリブ３１が設けられ、該リブ３１は、その突出
先端部が尖っていてもよいし、円形状、楕円形状、球面
形状、非球面形状など丸みを持っていてもよいし、平坦
面であってもよい。
【００１３】前記リブ３１は、超音波加熱手段Ｃの超音
波ホーン１０先端部による押圧領域の外周輪郭に沿うよ
うに設置することが適当であり、例えば、図１に示すよ
うに超音波ホーン１０先端部による押圧領域の外周幅Ｌ
に略等しい間隔で設置することが適当である。
【００１４】同図１は、本発明の超音波融着用樹脂成形
体３０を厚紙２１を主体とした紙製複合シート２０の熱
融着性樹脂層２２表面に重ね合わせた状態を示し、この
成形体３０は受板１１上に載置されて、複合シート２０
上方に設置した超音波加熱手段Ｃの超音波ホーン１０先
端部と受板１１との間で、重ね合わせた複合シート２０
と成形体３０とを押圧して、超音波振動により加熱して
融着するものである。
【００１５】図２は、重ね合わせた複合シート２０と成
形体３０とを超音波ホーン１０先端部にて押圧して、超
音波振動により加熱融着した状態を示し、成形体３０の
リブ３１先端部は、加熱による溶融によって平坦に潰れ
た状態で、複合シート２０の熱融着性樹脂層２２表面に
融着される。
【００１６】図３は、本発明の超音波融着用樹脂成形体
３０が、複合シート２０により製函された紙製液体包装
容器Ａの上面部２に設けた口栓取付用の孔設部２ａに容
器Ａ内面から取り付ける内付け式の口栓Ｂの場合を説明
する側面図である。
【００１７】紙製液体包装容器Ａの複合シート２０によ
る上面部２に設けた孔設部２ａに、容器Ａの内面側から
ポリオレフィン系の熱溶融性樹脂製の口栓Ｂの筒部４
（４ａはネジ部）を嵌挿し、その筒部４の下端外周に一
体に設けたリング状のフランジ板５の上面に設けたリブ
３１を、容器Ａの上面部２内面（ポリオレフィン系の熱
溶融性樹脂フィルム層６）と密着させ、超音波加熱手段
Ｃの超音波ホーン１０と受板１１との間で、上面部２と
フランジ板５のリブ３１とを押圧しながら超音波を印加
して、その密着内面を加熱融着させて取り付けるもので
ある。
【００１８】図４は、重ね合わせた上面部２の複合シー
ト２０と成形体３０とを超音波ホーン１０先端部にて押
圧して、超音波振動により加熱融着した状態を示し、成
形体３０のリブ３１先端部は、加熱による溶融によって
平坦に潰れた状態で、上面部２の熱融着性樹脂層６表面
に融着される。
【００１９】
【発明の効果】本発明の超音波融着用樹脂成形体は、複
合シートの熱融着性樹脂層面に密着して超音波加熱手段
の超音波ホーンにて加熱押圧して融着した際に、成形体
が薄化する現象を防止することができ、薄化によるクラ
ックの発生を防止して、複合シートと融着した後におけ
る成形体の割れ易さを防止できる効果がある。
【図面の簡単な説明】
【図１】本発明の超音波融着用樹脂成形体を説明する側
面図。
【図２】本発明の超音波融着用樹脂成形体を超音波加熱
手段の超音波ホーンを用いて複合シートと加熱加圧融着
した状態を説明する側面図。
【図３】本発明の超音波融着用樹脂成形体として紙製液
体包装容器に取り付ける内付け型の口栓の例を説明する
側面図。
【図４】本発明の超音波融着用樹脂成形体として紙製液
体包装容器に取り付ける内付け型の口栓を超音波加熱手
段の超音波ホーンを用いて複合シートと加熱加圧融着し
た状態を説明する側面図。
【図５】一般的な紙製液体包装容器に取り付ける内付け
型の口栓を超音波加熱手段の超音波ホーンを用いて複合
シートと加熱加圧融着する場合を説明する側面図。
【図６】一般的な紙製液体包装容器に取り付ける内付け
型の口栓を超音波加熱手段の超音波ホーンを用いて複合
シートと加熱加圧融着した状態を説明する部分拡大側面
図。
【符号の説明】
Ａ…容器 Ｂ…口栓 Ｃ…超音波加熱手段 １…容器の側面部 ２…上面部 ３…底面部 ４…筒体
５…フランジ部 ６…熱融着性樹脂層 １０…超音波ホーン １１…受板 ２０…複合シート ２１…厚紙 ２２…熱融着性樹脂層 ３０…超音波融着用樹脂成形体 ３１…リブ

Claims (2)

    【特許請求の範囲】
  1. 【請求項１】厚紙を主体とした紙製複合シートの熱融着
    性樹脂層表面に超音波加熱手段にて融着する超音波融着
    用樹脂成形体であって、その融着面に突出するリブを設
    けたことを特徴とする超音波融着用樹脂成形体。
  2. 【請求項２】前記超音波融着用樹脂成形体が、前記紙製
    複合シートにより形成された紙製液体包装容器の内付け
    式口栓である請求項１記載の超音波融着用樹脂成形体。
JP10250524A 1998-09-04 1998-09-04 超音波融着用樹脂成形体 Pending JP2000079638A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10250524A JP2000079638A (ja) 1998-09-04 1998-09-04 超音波融着用樹脂成形体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10250524A JP2000079638A (ja) 1998-09-04 1998-09-04 超音波融着用樹脂成形体

Publications (1)

Publication Number Publication Date
JP2000079638A true JP2000079638A (ja) 2000-03-21

Family

ID=17209184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10250524A Pending JP2000079638A (ja) 1998-09-04 1998-09-04 超音波融着用樹脂成形体

Country Status (1)

Country Link
JP (1) JP2000079638A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1102265A2 (en) * 1999-11-22 2001-05-23 Fuji Photo Film Co., Ltd. Magnetic tape cassette, window member and resin molding product
EP3835035A1 (de) * 2019-12-11 2021-06-16 Telsonic Holding AG Verfahren zum verbinden von werkstücken und zusammengesetzter gegenstand

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1102265A2 (en) * 1999-11-22 2001-05-23 Fuji Photo Film Co., Ltd. Magnetic tape cassette, window member and resin molding product
EP1102265A3 (en) * 1999-11-22 2006-07-26 Fuji Photo Film Co., Ltd. Magnetic tape cassette, window member and resin molding product
EP3835035A1 (de) * 2019-12-11 2021-06-16 Telsonic Holding AG Verfahren zum verbinden von werkstücken und zusammengesetzter gegenstand
WO2021115788A1 (de) * 2019-12-11 2021-06-17 Telsonic Holding Ag Verfahren zum verbinden von werkstücken und zusammengesetzter gegenstand
CN115003492A (zh) * 2019-12-11 2022-09-02 远程声波控股公司 连接工件的方法和复合制品

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