JPS6337236Y2 - - Google Patents

Info

Publication number
JPS6337236Y2
JPS6337236Y2 JP1980077602U JP7760280U JPS6337236Y2 JP S6337236 Y2 JPS6337236 Y2 JP S6337236Y2 JP 1980077602 U JP1980077602 U JP 1980077602U JP 7760280 U JP7760280 U JP 7760280U JP S6337236 Y2 JPS6337236 Y2 JP S6337236Y2
Authority
JP
Japan
Prior art keywords
heater
seal
curved groove
sealing work
work plate
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
Application number
JP1980077602U
Other languages
English (en)
Other versions
JPS5743125U (ja
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 filed Critical
Priority to JP1980077602U priority Critical patent/JPS6337236Y2/ja
Publication of JPS5743125U publication Critical patent/JPS5743125U/ja
Application granted granted Critical
Publication of JPS6337236Y2 publication Critical patent/JPS6337236Y2/ja
Expired 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
    • B29C66/40—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
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/229—Heated wire resistive ribbon, resistive band or resistive strip characterised by the means for tensioning said heated wire, resistive ribbon, resistive band or resistive strip
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C65/7433—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 wire
    • 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
    • B29C65/7441—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 for making welds and cuts of other than simple rectilinear form
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a sinusoidal wave
    • 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
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • 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
    • B29C66/83—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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

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

Description

【考案の詳細な説明】 （産業上の利用分野） この考案は合成樹脂製袋の袋口を曲線状にシー
ルするものに関する。
（従来の技術） 従来、合成樹脂製のフイルムに強度をもたせる
ように加工した延伸フイルム同志を接合したり、
或はフイルムで袋を作るのに用いるヒートシール
方法を開示したものに特開昭52−80368号公報の
第１図（本願図面の第６図）のものがある。上記
第６図に就いて簡単に説明すると、ヒートシール
線３１は金型３２の一面に型刻り加工を施すこと
により削り出されており、この金型３２にはヒー
ター３３を埋設すると共に、該ヒーター３３への
通電によつて金型３２を加熱して金型３２につい
でヒートシール線３１を適温に加熱するものであ
る。
上記のものにあつては、ヒートシール線を大き
い体積の金型から削り出す困難さと、ヒーターを
埋込むための穿孔などの作業工程に要する高度な
金型技術及びその加工手間に加えて金型の素材費
などが高価でその製作費、製作に要する作業時間
特に屈曲の曲率、折曲の角度の大小による作業性
の困難さなどによつて金型の占める製作費及び製
品の価格に占る比率が極めて大きく、改善への大
きな課題であつた。
また、本願考案者が本願の原型として考案した
ものであつて、合成樹脂製袋の袋口を直線状にシ
ールするシール装置Ｂは、第４図及び第５図イ，
ロに示す絶縁性のシール作業板２０の上面に帯状
のヒーター２１を幅の広い面をシール作業板２０
の表面と平行させ、このヒーター２１の両端をテ
ンシヨンアーム２２，２２の間に張設しそのヒー
ター２１の上に挿入した袋２３の袋口２３′をシ
ール押え板２４によりヒーター２１に押付けてシ
ールを施していた。上記のものにあつてはヒータ
ーを横倒しにして用いていたので直線以外のシー
ル加工を施すことは全く不可能であつた。従つて
本願考案は、これが解決策として開発したもので
ある。
（考案が解決しようとする問題点） 本考案が解決しようとする問題点は、帯状を呈
するヒーターを水平方向の曲げ自在に支持すると
共に、シール時のヒーターをシール作業板の曲線
溝に介在させることによりシール位置及びシール
線がずれないようにすることである。
（問題を解決するための技術的手段） 本考案が上記問題点を解決するために講じた技
術的手段は、所要断面形及び長さの帯状にしたヒ
ーターの両端を通電可能のテンシヨンアームに幅
方向を縦にして支持し、前記ヒーターを別に設け
た作業板の曲線溝に一挙動作で出入り自在に対応
させることである。
（作用） 通電可能の対のテンシヨンアームに水平方向の
曲率を変形自在に支持したヒーターを、別に設け
たシール作業板の上面に予じめ凹設してある曲線
溝の曲率に一致させて落し込むように嵌合させて
置き、このヒーターの上に載せた袋口を別に設け
たシール押え板によつて押え付けることにより、
袋口を加熱溶融して袋口にシールを施す。
（実施例） 以下、この実施例を図に基づいて詳細に説明す
る。
この実施例は、第１図及び第２図に示すように
シール作業板１はインパルスシール装置Ａに固定
されたゴムその他の絶縁性を具備し、このシール
作業板１の表面には弧形、波形その他所要曲率の
曲線溝２を予じめ設ける。別に設けたヒーター３
は断面多角形を呈する帯状で両端をテンシヨンア
ーム４，４の連結部５，５に取付けて支持されて
おり、テンシヨンアーム４，４は後記のシール作
業板１の両側外に傾動自在に枢支され、各テンシ
ヨンアーム４，４は、引張スプリング６，６によ
り異方向へ互いに引合うように弾装してあつて、
常時は直線状に支持されている。シール押え板７
は前記シール作業板１と同一の素材によりほぼ均
しい平面積を具備し、前記インパルスシール装置
Ａの作動機構（図示省略）により上下の往復運動
自在に配置する。第３図は曲線溝２の別の実施例
でＳ字形の曲線溝２′を設けたシール作業板１を
示すこの考案に於いて食品、小物類その他の物品
（図示省略）を詰めた合成樹脂製の袋８の袋口９
に所要の曲線状にシール１０を施すには、先ず第
１図のシール作業板１の曲線溝２内にヒーター３
が嵌め込まれるようにテンシヨンアーム４，４を
引張スプリング６，６の蓄力に抗して引寄せるよ
うに操作してヒーター３に直線方向のテンシヨン
を与えながら曲線溝２と同一の曲率に変形させ、
そのままヒーター３を曲線溝２内に落し込むよう
に嵌合する。この際ヒーター３は、上面の一部が
曲線溝２から外に食み出すようにしてシール作業
板１の表面に僅かに突出させられている。次にこ
のようにシール作業板１の表面に帯状に突出して
いるヒーター３の上に袋口９を載せて位置決め
し、そのままシール押え板７を圧下方向に作動し
て袋口９をヒーター３の上に押付けると、このヒ
ーター３はインパルス方式による衝撃電流により
加熱され、該ヒーター３の表面に押付けられた袋
口９の対応面をヒーター３と同一の曲線状に溶融
させてシール１０を施す。
この場合ヒーター３は曲線溝２の内部に在つて
両端を係止しているテンシヨンアーム４，４を介
して常時引張方向への均等なテンシヨンを賦与さ
れているので、ヒーター３が加熱により直線方向
へ復元しようとするのを曲線溝２によつて巧に吸
収排除しているために袋口９のシール１０を均一
に施すことができる。尚別の実施例の場合も上述
に準じて作動する。
（効果） この考案は、上記の構成であるから、次の利点
を有する。
(1) シール作業板の表面に所要の形状及び曲率に
よる曲線溝を設けると共に、この曲線溝に、傾
動自在の対のテンシヨンアームに支持した帯状
のヒーターを、水平方向の曲率を変形自在に支
持し、このヒーターを直線から曲線溝の曲率に
応じた曲線に一挙動作で変化させながら曲線溝
に嵌め、曲線溝と同一のシールを袋口に施すよ
うにしたので、袋口のシールを均一に然も美的
な曲線状に形成することができる。
(2) ヒーターは直線の状態から曲線溝内に変形さ
せられて嵌め込まれているので、シール板をも
つて圧迫されてもシール線がずれたり、変形し
たりすることなく美しい曲線を現わして確実に
シールを施すことができる。
(3) 必要な曲線、突起、突条などを金型の表面に
彫刻状に形成する従来のものと異なり、本案の
ヒーターは断面ほぼ多角形の帯状にしたものを
傾斜自在な対のテンシヨンアームをもつて直線
状に支持し、テンシヨンアームを互いに引寄せ
る一挙動作でヒーターの曲率を自由自在に変形
できるために、袋口のシールは流れるような曲
線と均一な溶融とにより美しい曲線に現わすこ
とができ、然も簡略な機構により設備費を大幅
に軽減させられるなどの効果は大きい。
【図面の簡単な説明】
第１図は、本案装置の作動要領を示す正面斜視
図、第２図は、第１図に於けるＡ−Ａ線の断面
図、第３図は、別の実施例の説明図、第４図、第
５図イ，ロ及び第６図は、従来技術の説明図であ
る。 主要部分の符号の説明、１……シール作業板、
２，２′……曲線溝、３……ヒーター、４……テ
ンシヨンアーム、７……シール押え板、Ａ……イ
ンパルスシール装置。

Claims (1)

    【実用新案登録請求の範囲】
  1. ゴムその他絶縁性で表面に弧形、Ｓ字形などの
    所要曲率による曲線溝２を有したシール作業板１
    及び同一素材のシール押え板７を有する熱処理用
    のインパルスシール装置Ａを構成し、別に、断面
    多角形の帯状にしたヒーター３を形成すると共
    に、該ヒーター３を前記シール作業板１の両端に
    傾動自在に配置したテンシヨンアーム４，４に支
    持し、両テンシヨンアーム４，４の異方向への弾
    力賦与によつてヒーター３を常時は直線状に保持
    し、シール作業時にはヒーター３を幅の広い面を
    横向きにして前記曲線溝２内に上面が該曲線溝２
    から僅かに食み出るように嵌め込むことを特徴と
    する合成樹脂製袋用の曲線シール装置。
JP1980077602U 1980-06-03 1980-06-03 Expired JPS6337236Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980077602U JPS6337236Y2 (ja) 1980-06-03 1980-06-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980077602U JPS6337236Y2 (ja) 1980-06-03 1980-06-03

Publications (2)

Publication Number Publication Date
JPS5743125U JPS5743125U (ja) 1982-03-09
JPS6337236Y2 true JPS6337236Y2 (ja) 1988-10-03

Family

ID=29440163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980077602U Expired JPS6337236Y2 (ja) 1980-06-03 1980-06-03

Country Status (1)

Country Link
JP (1) JPS6337236Y2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451137Y2 (ja) * 1986-03-31 1992-12-02
JP2906142B1 (ja) * 1998-05-28 1999-06-14 富士インパルス株式会社 ヒートシール装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5280368A (en) * 1975-12-27 1977-07-06 Dainippon Printing Co Ltd Method of heat seal of synthetic resin film

Also Published As

Publication number Publication date
JPS5743125U (ja) 1982-03-09

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