JPH056445B2 - - Google Patents
Info
- Publication number
- JPH056445B2 JPH056445B2 JP59102650A JP10265084A JPH056445B2 JP H056445 B2 JPH056445 B2 JP H056445B2 JP 59102650 A JP59102650 A JP 59102650A JP 10265084 A JP10265084 A JP 10265084A JP H056445 B2 JPH056445 B2 JP H056445B2
- Authority
- JP
- Japan
- Prior art keywords
- film material
- base piece
- claw
- fastener
- occlusal
- 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
Links
Landscapes
- Bag Frames (AREA)
- Slide Fasteners (AREA)
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は開閉機能を有する合成樹脂製のフアス
ナーをプラスチツクフイルムに接着固定させるた
めのベース片付フアスナーに関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a fastener with a base for adhesively fixing a synthetic resin fastener having an opening/closing function to a plastic film.
〈従来技術〉
従来から合成樹脂製フアスナーの構造について
は、正常な咬合保持のために種々改良がなされて
いる。しかし、フアスナーとフイルム材との連続
接着工程に不可欠な、そしてフアスナーの咬合力
やフイルム材の品質に影響を与えるフアスナーに
於けるベース片の接着構造については何等改良が
なされておらず、そのために、フイルム材への接
着過程において各種のトラブルが発生していた。
特に熱収縮の高い例えば２軸延伸フイルムについ
てはトラブル発生の度合が多かつた。<Prior Art> Conventionally, various improvements have been made to the structure of synthetic resin fasteners in order to maintain normal occlusion. However, no improvements have been made to the bonding structure of the base piece of the fastener, which is essential for the continuous bonding process between the fastener and the film material, and which affects the bite force of the fastener and the quality of the film material. However, various problems occurred during the adhesion process to the film material.
In particular, troubles occurred frequently with biaxially stretched films, for example, which have high heat shrinkage.
すなわち、押出し成形熱を有するフアスナーと
既成のフイルム材とを接着する場合に、如何に正
常な咬合機能を有するフアスナーの成形に努力し
ても接着熱によるフイルム材の変形防止を図らな
い限りは、成形熱を有し軟化状態にあるフアスナ
ーは接着後に発生するフイルム材に於ける変形波
動による影響を受けて歪んでしまうので正常な咬
合機能を保持することができずロスの要因となつ
ていた。 In other words, when bonding a fastener that is heated by extrusion molding to a ready-made film material, no matter how much effort is made to form a fastener that has a normal occlusal function, unless the deformation of the film material due to the bonding heat is prevented, The fastener, which is in a softened state due to the heat of molding, is affected by the deformation waves in the film material that occur after bonding and becomes distorted, making it impossible to maintain normal occlusal function and causing loss.
また、フアスナー接着後に、接着個所周辺のフ
イルム面は接着熱によつて収縮したり波状になつ
たりするのでフイルム自体の商品価値も失われて
いた。 Further, after the fastener is bonded, the film surface around the bonded area shrinks or becomes wavy due to the heat of bonding, and the commercial value of the film itself is lost.
このようなフイルム材に発生する接着熱による
変形の要因は第１図に示すように、雄爪１及び雌
爪２からなる咬合爪を、全体が等厚肉厚状のベー
ス片３上に一体成形し、このベース片３の全面を
フイルム材４に接着するために、ベース片３の形
状を平面状とし、さらにはそのベース片３の厚み
を増すことで押出し成形熱の増加保持を図り接着
を強化するなどフイルム材４に過度の熱を与えて
いたことによるものである。 The cause of such deformation due to the adhesive heat generated in the film material is that, as shown in Fig. 1, the occlusal claw consisting of the male claw 1 and the female claw 2 is integrally mounted on the base piece 3 having the same thickness as the whole. In order to bond the entire surface of the base piece 3 to the film material 4, the shape of the base piece 3 is made flat and the thickness of the base piece 3 is increased to increase and retain the extrusion molding heat. This is due to excessive heat being applied to the film material 4, such as by strengthening it.
その結果第２図に示すように、フイルム材４の
収縮の影響をうけてベース片３が変形し、それに
つれて雄、雌爪１，２も変形した状態となり正常
な咬合力が得られなくなるのである。 As a result, as shown in Fig. 2, the base piece 3 is deformed under the influence of the contraction of the film material 4, and the male and female claws 1 and 2 are also deformed accordingly, making it impossible to obtain normal occlusal force. be.
そこで、上記フイルム材の変形と、それに伴う
ベース片やフアスナーの変形を防止するためには
ベース片の巾や厚みを熱変形しないような最低限
の巾や肉厚にすることで熱量の保持を減少させる
ことが必要である。しかしそのような細巾で薄肉
平面状のベース片にした場合は、ベース片端部か
ら散熱が著しく早いため、接着可能点以下の熱量
不足となり、ベース片の端部がフイルム材と接着
しなかつたり、あるいは接着不充分のため、すぐ
に剥離するなどの矛盾した関係が生じていた。 Therefore, in order to prevent the deformation of the above-mentioned film material and the accompanying deformation of the base piece and fastener, the width and thickness of the base piece should be set to the minimum width and thickness that will not cause thermal deformation in order to retain heat. It is necessary to reduce the However, when such a thin, flat base piece is used, heat dissipates extremely quickly from one end of the base, resulting in insufficient heat below the bonding point, and the end of the base piece may not adhere to the film material. A contradictory relationship has arisen in which the adhesive may peel off immediately due to poor adhesion or insufficient adhesion.
さらにはまた、ベース片の肉厚が薄く、かつベ
ース片全面が平面状である場合は、押出し成形後
においてフアスナー及びベース片材料自身の収
縮、内部残溜歪の緩和によつて、ベース片の端部
がよじれたり、丸まつたりするので接着工程上に
おいて、平面保持のための複雑な操作が必要であ
つた。またベース片のよじれは当然のことながら
フアスナーの歪みを誘発していた。 Furthermore, if the wall thickness of the base piece is thin and the entire surface of the base piece is flat, the fastener and the base piece material themselves shrink after extrusion molding, and the internal residual strain is alleviated. Since the edges are twisted or curled, complicated operations are required to maintain the flat surface during the bonding process. Also, the twisting of the base piece naturally caused distortion of the fastener.
しかし、たとえ従来構造のフアスナー付肉厚平
面状のベース片とフイルム材との安定した接着が
行われ、そして、それから製品化されたフアスナ
ー付袋体であつても以下に述べる問題を避けるこ
とはできなかつた。 However, even if the conventional structure of a thick flat base piece with a fastener and the film material is stably bonded, and even if the bag with a fastener is manufactured from this, the problems described below cannot be avoided. I couldn't do it.
すなわち、第３図に示すように、フアスナー付
袋体の開口部におけるつまみ片をｍ−m′方向に
引張つた場合、ベース片接着個所が固化している
ため咬合爪の係合点Ｑにおける咬合力はベース片
３の端部Ｐを支点としてＰ−P′のテコ作用により
ｎ−n′方向の引張り荷重が略倍増するので極めて
弱い咬合力の状態となる。この状態は、袋体に物
品を収納した場合、収納物品による膨み、あるい
は重量が袋体に加わつた場合でも同じような現象
となり、内部方向からフアスナーが開脱されてし
まう。 That is, as shown in Fig. 3, when the tab piece at the opening of the bag with fastener is pulled in the m-m' direction, the occlusal force at the engagement point Q of the occlusal claw is reduced because the base piece's adhesive location is solidified. With the end P of the base piece 3 as a fulcrum, the tensile load in the n-n' direction is almost doubled by the lever action of P-P', resulting in an extremely weak occlusal force. This condition occurs when articles are stored in the bag, and the same phenomenon occurs when the stored articles bulge or weight is added to the bag, resulting in the fastener being opened and removed from the inside.
換言すれば、僅かな引張りや内部からの膨み圧
などが加えられただけで必要以上の力が咬合爪部
に作用するので簡単にフアスナーが開脱されてし
まい咬合機能としての実用性が損われていた。 In other words, even if a slight tension or internal swelling pressure is applied, more force than necessary will be applied to the occlusal claw, and the fastener will easily come off and open, impairing its practicality as an occlusal function. I was worried.
〈発明の目的〉
本発明の目的は、上記従来の問題点に鑑み、フ
アスナー付ベース片の肉厚形状を特別な形状と
し、フアスナーとフイルム材との安定接着を可能
とし、且つ大巾な生産コストの低減を計つたこと
である。<Object of the Invention> In view of the above-mentioned conventional problems, an object of the present invention is to provide a base piece with a fastener with a special thick wall shape, to enable stable adhesion between the fastener and the film material, and to facilitate wide production. The aim was to reduce costs.
〈発明の構成〉
本発明の特徴とする構成は、雄爪と雌爪とから
なる咬合爪を、それぞれ所要巾のベース片上に形
成した合成樹脂製フアスナーに於いて、前記ベー
ス片の前記咬合爪が形成された面とは反対のフイ
ルム材への接着側の面の両側端と咬合爪基部との
３箇所に厚肉部を設け、この各厚肉部間に薄肉部
による凹部を形成し、前記３箇所の厚肉部をフイ
ルム材に接着するようにしたものである。<Configuration of the Invention> The characteristic configuration of the present invention is that in a synthetic resin fastener in which an occlusal pawl consisting of a male pawl and a female pawl is formed on a base piece each having a required width, the occlusal pawl of the base piece Thick wall portions are provided at three locations on both sides of the surface to be bonded to the film material opposite to the surface on which is formed, and at the base of the occlusal nail, and a recessed portion is formed between each of the thick wall portions by the thin wall portion, The three thick portions are bonded to the film material.
〈実施例〉
以下本考案の実施例を図面に基いて説明する。
第５図において、１は雄爪、２は雌爪であり、両
者でもつて開閉機能を持つた咬合爪を構成してい
る。この雄爪１と雌爪２とからなる咬合爪は、そ
れぞれ所要巾b1のベース片３上に形成されてい
る。前記ベース片３の前記雄爪１と雌爪２が形成
された面とは反対のフイルム材へ４の接着側の面
の両側端と雄爪１並びに雌爪２の基部との３個所
に厚肉部５，７を設け、この各厚肉部５，７間に
薄肉部６による凹部を形成し、前記３箇所の厚肉
部５，７をフイルム材４に接着S1，S2，S3するよ
うにしたものである。<Example> Hereinafter, an example of the present invention will be described based on the drawings.
In FIG. 5, 1 is a male claw and 2 is a female claw, both of which constitute an occlusal claw with an opening and closing function. The occlusal claws consisting of the male claw 1 and the female claw 2 are each formed on a base piece 3 having a required width b1 . Thickness is applied to the film material on the opposite side of the base piece 3 from the surface on which the male claws 1 and female claws 2 are formed, at three places: both ends of the adhesive side of the base piece 3 and the bases of the male claws 1 and female claws 2. Thick portions 5 and 7 are provided, a recessed portion is formed between each of the thick portions 5 and 7 by a thin portion 6, and the three thick portions 5 and 7 are bonded to the film material 4 S 1 , S 2 , S 3 .
つまり、上記３箇所の厚肉部５，７での接着
S1，S2，S3は、押出し成形時の雄爪１、雌爪２の
基部の厚肉部７とベース片５の両側端の厚肉部５
がフイルム材４に対して接着に要する充分な自己
保有熱を維持して相溶接着力を確保すると共に、
フイルム材４に対しても変形の原因となる不必要
な過剰熱を与えることがないのでフイルム材にお
ける変形、そしてそれに伴う咬合爪の変形を起す
ことがない。両薄肉部６を設けたことで、例え過
剰熱によりフイルムの変形を来たしたとしても、
両薄肉部６の自在性、柔軟性でフイルム変形に伴
う咬合具、その応力を吸収、遮断し影響を与える
ことはない。 In other words, the adhesion at the three thick parts 5 and 7 mentioned above
S 1 , S 2 , and S 3 are the thick parts 7 at the base of the male claw 1 and female claw 2 during extrusion molding, and the thick parts 5 at both ends of the base piece 5.
maintains sufficient self-retained heat required for adhesion to the film material 4 to ensure phase welding adhesion, and
Since unnecessary excessive heat that causes deformation is not applied to the film material 4, deformation of the film material and accompanying deformation of the occlusal nails does not occur. By providing both thin-walled portions 6, even if the film is deformed due to excessive heat,
The flexibility and flexibility of both thin-walled portions 6 absorb and block the stress caused by the deformation of the film, and do not affect the articulating tool.
すなわち、本発明によるベース片３の形状は、
前記したように雄１、雌爪２の基部の厚肉部７の
両側を薄肉部６とし、その先端を厚肉部５とした
ことによりフアスナーの成形工程並びにフイルム
材４との接着工程の効率を高めることができる。 That is, the shape of the base piece 3 according to the present invention is as follows:
As described above, both sides of the thick part 7 at the base of the male 1 and female claw 2 are made into thin parts 6, and the tips thereof are made into the thick part 5, thereby improving the efficiency of the process of forming the fastener and the process of adhering it to the film material 4. can be increased.
すなわち、第１図に示す従来構造の場合は第４
図に示すように、金型形状Ｘのベース片巾B2を
有するフアスナーは、フイルム材４に接合される
接合点Ｚまでの押出移行の延伸過程Ｙでベース片
３の巾方向の両端が延伸に伴うネツクインで溶融
状態にあるベース片３は凝集的律動が大きく、ベ
ース片３の巾方向の両端が薄肉で巾狭b2となり、
そのために両端部における保有熱は延伸過程Ｙで
散逸するのでフイルム材４との相溶接着、特に端
部の接着を不確実とすると共に、フアスナー自体
の変形が多くロスの要因となつていた。これに対
し本発明による場合は、第７図に示すように、押
出し成形した金型形状Ｘからフイルム材４に接合
される接合点Ｚまでの延伸過程Ｙでの相互の応力
関係を前記薄肉部６の部分が早期冷却固化するこ
とにより樹脂の凝集が遮断されるので前記ネツク
インを防止し、接合点Ｚにおけるベース片３は所
要の巾b1を保持することが出来る。又、雄１、雌
爪２の基部の厚肉部７並びにベース片３の両側端
が厚肉部５となつているため該箇所からの保有熱
散逸が極めて少いのでベース片に於ける薄肉箇所
とフイルムとの接着が行われなくてもフイルム材
４との接着を確実にすることができる。 In other words, in the case of the conventional structure shown in Fig. 1, the fourth
As shown in the figure, in a fastener having a mold shape X and a base width B 2 , both ends of the base piece 3 in the width direction are stretched in the stretching process Y of extrusion transition to the joining point Z where it is joined to the film material 4. The base piece 3, which is in a molten state due to the netzukin associated with this, has a large cohesive rhythm, and both ends of the base piece 3 in the width direction are thin and have a narrow width b2 ,
Therefore, the heat retained at both ends is dissipated during the stretching process Y, making phase welding with the film material 4, especially at the ends, unreliable, and the fastener itself often deforms, causing loss. On the other hand, in the case of the present invention, as shown in FIG. 7, the mutual stress relationship in the stretching process Y from the extruded mold shape Early cooling and solidification of the portion 6 prevents agglomeration of the resin, thereby preventing the aforementioned neck-in and allowing the base piece 3 at the joining point Z to maintain the required width b 1 . In addition, since the thick wall portions 7 at the bases of the male 1 and female claws 2 and both ends of the base piece 3 are the thick wall portions 5, heat dissipation from these areas is extremely small. Adhesion to the film material 4 can be ensured even if the portion and the film are not adhered to each other.
また、前記の如く薄肉部６はフイルム材４と非
接着部分とすることにより該部分を柔軟構成にす
ることが望ましい。つまり、雄１、雌爪２の基部
の厚肉部７とベース片３の両側端の厚肉部５との
間で凹部を形成している薄肉部６とフイルム材４
との間を非接着部分とすることにより、この部分
は極めて柔軟で自在な構成部分となる。こうした
柔軟構成部分を設けることによつて、雄、雌爪
１，２の咬合力をフイルム材４の材質、剛性、厚
みなどに影響されることなく充分確保されるので
ある。本案は上記のように、柔軟構成部分がある
ので、第６図に示すように、内容充填物の移動な
どによる内部応力Ｍによつて袋体のフイルム材４
がＬ字状に曲折しても薄肉部６の柔軟追従性によ
つて非接着部が曲折し、雄、雌爪１，２に変位作
用を及ぼすことがないので常に、正常な姿勢で咬
合が保持される。すなわち、前記内部応力Ｍは矢
印Ｒ方向のように爪の係合に有効に作用して咬合
力を増加するので流動的な物品を収納した袋体に
於いても安定した咬合状態を維持することができ
る。 Further, as described above, it is desirable that the thin wall portion 6 be made into a portion that is not bonded to the film material 4 so that this portion has a flexible structure. In other words, the thin part 6 and the film material 4 form a recess between the thick part 7 at the base of the male 1 and female claw 2 and the thick part 5 at both ends of the base piece 3.
By creating a non-adhesive part between the two parts, this part becomes an extremely flexible and flexible component. By providing such a flexible component, the biting force of the male and female claws 1 and 2 can be sufficiently secured without being affected by the material, rigidity, thickness, etc. of the film material 4. As described above, this case has a flexible component, so as shown in FIG. 6, the film material 4 of the bag is
Even if the nail is bent into an L-shape, the non-bonded part is bent due to the flexible followability of the thin wall part 6, and there is no displacement effect on the male and female nails 1 and 2, so occlusion is always maintained in a normal posture. Retained. That is, the internal stress M effectively acts on the engagement of the claws in the direction of arrow R and increases the occlusal force, so that a stable occlusal state can be maintained even in a bag housing a fluid article. I can do it.
さらに、ベース片３とフイルム材４との接着は
前記のようにベース片３の両側端の厚肉部５と雄
爪１並びに雌爪２の基部の厚肉部７との３箇所で
行われているため、フアスナーの開閉のための力
が加えられても雄爪１並びに雌爪２の基部が上下
に浮動したり左右動することがなく、安定した開
閉作用が得られる。また、生産工程面に於ては、
両端の厚肉部５によりネツクイン現象などの影響
によるベース片端部からのよじれや丸まりが抑制
されるので平面維持のための煩雑な装置や操作が
不要となり生産性を高めることが出来る。 Further, as described above, the base piece 3 and the film material 4 are bonded to each other at three locations: the thick portions 5 at both ends of the base piece 3 and the thick portions 7 at the bases of the male and female claws 1 and 2. Therefore, even when force is applied to open and close the fastener, the bases of the male claw 1 and female claw 2 do not float up and down or move left and right, and stable opening and closing action can be obtained. In addition, in terms of the production process,
Since the thick wall portions 5 at both ends prevent twisting or curling from one end of the base due to effects such as the neck-in phenomenon, complicated devices and operations for maintaining the flat surface are unnecessary, and productivity can be increased.
〈発明の効果〉
以上のように本発明による合成樹脂製フアスナ
ーのベース片は、前記特定形状とすることによ
り、フイルム材とフアスナーの変形を防止すると
共に、硬、軟多様なフイルム材に対しても安定し
た接着と咬合爪の咬合力を保持し得る格別な効果
を有しているものである。<Effects of the Invention> As described above, by forming the base piece of the synthetic resin fastener according to the present invention into the specific shape, it is possible to prevent deformation of the film material and the fastener, and also to be able to withstand various hard and soft film materials. It also has the special effect of maintaining stable adhesion and the occlusal force of the occlusal nail.
第１図は従来のプラスチツクチヤツクの断面
図、第２図は同変形状態の断面図、第３図は同袋
体の内部応力によるプラスチツクチヤツクの咬合
爪へ及ぼす悪影響を示す断面図、第４図は同プラ
スチツクチヤツクの押出し成形の金型形状からフ
イルムへの接合点の延伸過程を示す説明図、第５
図は本発明によるプラスチツクチヤツクの断面
図、第６図は同袋体の内部応力に対するプラスチ
ツクチヤツクの咬合爪への作用を示す断面図、第
７図は同プラスチツクチヤツクの押出し成形の金
型形状からフイルムへの接合点の延伸過程を示す
説明図である。
１……雄爪、２……雌爪、３……ベース片、４
……フイルム材、５……厚肉部、６……薄肉部、
７……厚肉部。
Fig. 1 is a sectional view of a conventional plastic chuck, Fig. 2 is a sectional view of the same deformed state, Fig. 3 is a sectional view showing the adverse effect of the internal stress of the bag on the occlusal nail of the plastic chuck; Figure 4 is an explanatory diagram showing the process of stretching the bonding point from the extrusion mold shape of the same plastic chuck to the film.
Figure 6 is a cross-sectional view of the plastic chuck according to the present invention, Figure 6 is a cross-sectional view showing the effect of the plastic chuck on the occlusal claw against the internal stress of the bag, and Figure 7 is the extrusion molding of the plastic chuck. FIG. 3 is an explanatory diagram showing a process of stretching a bonding point from a mold shape to a film. 1...Male claw, 2...Female claw, 3...Base piece, 4
...Film material, 5...Thick wall part, 6...Thin wall part,
7...Thick part.
Claims (1)
要巾のベース片上に形成した合成樹脂製フアスナ
ーに於いて、前記ベース片の前記咬合爪が形成さ
れた面とは反対のフイルム材への接着側の面の両
側端と咬合爪基部との３箇所に厚肉部を設け、こ
の各厚肉部間に薄肉部による凹部を形成し、前記
３箇所の厚肉部をフイルム材に接着するようにし
たことを特徴とするベース片付合成樹脂製フアス
ナー。1. In a synthetic resin fastener in which an occluding claw consisting of a male claw and a female claw is formed on a base piece of a required width, the film material is attached to the opposite side of the base piece from the side on which the occluding claw is formed. Thick wall portions are provided at three locations on both ends of the adhesive side surface and the base of the occlusal claw, a concave portion is formed between each thick wall portion by a thin wall portion, and the three thick wall portions are bonded to the film material. A synthetic resin fastener with a base that is characterized by the following features:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265084A JPS60246703A (en) | 1984-05-23 | 1984-05-23 | Synthetic resin fastener with base piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265084A JPS60246703A (en) | 1984-05-23 | 1984-05-23 | Synthetic resin fastener with base piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60246703A JPS60246703A (en) | 1985-12-06 |
| JPH056445B2 true JPH056445B2 (en) | 1993-01-26 |
Family
ID=14333118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10265084A Granted JPS60246703A (en) | 1984-05-23 | 1984-05-23 | Synthetic resin fastener with base piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60246703A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016073329A (en) * | 2014-10-02 | 2016-05-12 | シーアイ化成株式会社 | Fitting tool and bag body with fitting tool |
| JP6487215B2 (en) * | 2015-01-09 | 2019-03-20 | 出光ユニテック株式会社 | Zipper tape, bag body with zipper tape, and method for manufacturing bag body with zipper tape |
| JP7037266B2 (en) * | 2015-09-25 | 2022-03-16 | 出光ユニテック株式会社 | Bag with zipper tape |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5040727U (en) * | 1973-08-16 | 1975-04-25 |
-
1984
- 1984-05-23 JP JP10265084A patent/JPS60246703A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60246703A (en) | 1985-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |