JP4659181B2

JP4659181B2 - Button battery packaging

Info

Publication number: JP4659181B2
Application number: JP2000212586A
Authority: JP
Inventors: 伸行高垣; 仁三井; 嗣人堀川; 智明漢那; 佐代子北畠; 正男山田
Original assignee: Fuji Seal International Inc
Current assignee: Fuji Seal International Inc
Priority date: 1999-07-30
Filing date: 2000-07-13
Publication date: 2011-03-30
Anticipated expiration: 2020-07-13
Also published as: JP2001106259A

Description

【０００１】
【発明の属する技術分野】
本発明は、ボタン電池を包装するボタン電池包装体に関する。
【０００２】
【従来の技術】
従来、ボタン電池（時計、カメラ等に使用される円板状のボタン型電池）を収容する包装体は、図１５に示す如く、ボタン電池３０が収納される収容部３１を有するようにプラスチックシートを成形してなる収容部材３２と、前記収容部３１の開口側を閉塞するように収容部材３２に重ね合せて接着剤を介して接着される紙材よりなる台紙３３とにより構成されている（従来例１）。
【０００３】
また、他の包装体としては、ポリプロピレン製等のフィルム製袋に、前記ボタン電池を収容するようにしたものもある（従来例２）。
【０００４】
【発明が解決しようとする課題】
前記従来例１の包装体は、収容部材３２と台紙３３との材質が相違し（プラスチックと紙との相違がある。）、両者は全面に接着されているため、収容部材３２と台紙３３からなる包材の分別廃棄が面倒である。しかも、包装材に剛性を持たすべく、厚肉のプラスチックシートからなる収容部材３２と厚肉の台紙３３を使用するため、材料コストが高くなる欠点があると共に、過剰包装的なイメージがあった。
【０００５】
また、前記従来例２の包装体は、比較的高価なボタン電池の包装体としては、質感に欠け、しかも、収容されたボタン電池の位置が不安定となる。特に、複数のボタン電池をまとめて収容する場合には、ボタン電池同士が接触するため、複数個まとめて包装するのが困難であった。
【０００６】
本発明は、上記従来の問題点に鑑みてなされたもので、包材の分別廃棄が簡単に行え、薄肉のフィルムから構成した場合でも、剛性を有し、材料コストを安価にでき、しかも、高級感を維持しつつボタン電池を複数個まとめて包装することもできるボタン電池包装体を提供することを課題とする。
【０００７】
【課題を解決するための手段】
本発明は、上記課題を解決するためにボタン電池包装体としてなされたもので、その特徴は、ボタン電池６が収容される収容部５を有する収容部材３と、前記収容部５の開口を閉塞するように前記収容部材３に重ね合わされ熱溶着される封着部材７とを備えたボタン電池包装体において、前記収容部材３及び封着部材７は、それぞれプラスチックフィルムから構成されると共に、前記収容部材３及び封着部材７の重ね合わせ部分は、互いに密着しており、封着部材７は、連続した凹凸部が形成されるように成形され、さらに、前記収容部材３には、封着部材７との間に空間２５を有するように、リブ２１ａが環状に設けられていると共に、一端部がリブ２１ａに交差して空間２５に連通すると共に、他端部が収容部材３の外周端部に位置して外気に連通する補助リブ２１ｂが直線状に設けられていることにある。
更に、収容部材３と封着部材７を構成するプラスチックフィルムの厚さの合計が４００μｍ以下となるフィルムの採用により、材料コストを安くし、過剰包装的なイメージも減少する。
【０００８】
本発明のボタン電池包装体は、収容部材及び封着部材が、それぞれプラスチックフィルムから構成されているので、プラスチック廃棄物として処理でき、廃棄の際に材質を分別する必要がなく、従来の収容部材及び封着部材の材質の相違する包材に比し、その廃棄が簡単である。
【００１２】
【発明の実施の形態】
以下、本発明の実施の形態について図面を参酌しつつ説明する。
図１〜図３は本発明の第一実施の形態を示し、本実施形態における包装体１は、プラスチックフィルムから構成された収容部材３と、該収容部材３に凹状に形成された収容部５内に収容されるボタン電池６と、収容部５の開口側を閉塞するように収容部材３に重ね合されるシート状の封着部材７とから平面視矩形状に構成されている。尚、包装体１の一方（上部）には、係止孔８が形成されている。
【００１３】
前記収容部材３は、ＰＥＴ（ポリエチレンテレフタレート）等のポリエステル系樹脂、或いはＰＶＣ（ポリ塩化ビニル），ＰＰ（ポリプロピレン）系樹脂、ＰＳ（ポリスチレン）系樹脂等から成る厚さ３０μｍ〜３００μｍ（好ましくは、５０μｍ〜２５０μｍ）の単層又は多層の透明の薄肉シートを成形したものである。
【００１４】
また、前記封着部材７には、ＰＥＴ等のポリエステル系，ＰＶＣ，ＰＰ系，ＰＳ系等の厚さ２０μｍ〜１５０μｍの単層又は多層の樹脂フィルムや合成紙等が用いられる。但し、封着部材３は前記収容部材３との合計厚さが４００μｍ以下になるように組み合わせることが望ましい。また、ポリエステル系樹脂等の同質のフィルムを採用するのが好ましい。前記収容部材３および／又は、封着部材３を構成するフィルム等の表裏又は一面には、文字や絵柄等の印刷が適宜施されている。ここで、前記収容部材３は透明であることから、かかる印刷及び収容部５に収容されているボタン電池６を透視可能である。尚、収容部材３の透明とは、印刷及び収容部５に収容されているボタン電池６を透視可能な程度の半透明も含む。
【００１５】
前記収容部材３と封着部材７とは、前記収容部５以外の重ね合わせ部分の全体が互いに気密状（密着状）に重ね合わされ熱接着されている。従って、収容部５は、内部に空気が密封状態で充填されたドーム状となり、弾性力を有している。
【００１６】
次に、包装体の製造方法について説明する。先ず、収容部材３となる長尺状のプラスチックフィルム３ａを繰り出し、例えば、ロール状の真空成形型を有する真空成形機（図示省略）により、収容部５を成形する（図４（ａ）及び（ｂ）参照）。
【００１７】
次に、前記収容部５にボタン電池６を収容した後に、封着部材７となるプラスチックフィルム７ａを収容部材３となるプラスチックフィルム３ａに重ね合わせ、ヒートシール装置１５により、両方のプラスチックフィルム３ａ，７ａを熱溶着する（図４（ｃ）参照）。尚、ヒートシール装置１５は、平面状の受け部１５ａと、該受け部１５ａに接近又は離間する加熱部１５ｂとから構成し熱圧着しても、あるいは、両方の受け部と加熱部をロール状に形成し、両方のプラスチックフィルム３ａ，７ａをロール間へ連続的に送りながら熱圧着する構成ものであっても良い。
【００１８】
また、ヒートシール装置１５は、図１及び図３に示す如く重ね合わされた両方のプラスチックフィルム３ａ，７ａに点シール又は線シール等の凹凸加工（エンボス加工）１７を施す。尚、ここで、点シールとは、例えば凹部１７ａが収容部材３となるプラスチックフィルム３ａの表面側に格子線状等に形成されるように、格子状凹部を形成した加熱シール板（ロール）と点状の凸部により圧着する場合をいう。また、線シールとは、凸部１７ｂが同プラスチックフィルム３ａの表面側に格子線状等に形成される格子状の凸部を形成した加熱シール板（ロール）により圧着する場合をいう。ここで、凹部１７ａ又は凸部１７ｂのピッチＰは、０．５〜２．５ｍｍの範囲内で設定されている。また、両方のプラスチックフィルム３ａ，７ａの凹凸加工後の厚さＴは、凹凸加工以前の厚さの１．２〜２．０倍に設定されている。
【００１９】
更に、次工程において、互いに重ね合わされたプラスチックフィルム３ａ，７ａを所定の長さ及び形状に切断することにより、包装体１を形成する。かかる包装体１は、収容部５以外の部分に密着する凹凸部１７が形成されていることから、質感が向上すると共に、それぞれのフィルムは薄肉シートであるにもかかわらず、凹凸部１７が補強リブの効果を奏し腰が強く（曲げ強度が強く）なる。また、包装体１は腰が強くなることから、両方のフィルムを熱溶着した際の反りも緩和できる。
【００２０】
また、収容部５は、その全周が気密状にシールされるため、エアによるクッション効果により、多少収容部５が押圧されたとしても容易に凹んだり、変形したりすることがなく、ボタン電池６を保護する。
【００２１】
本発明は、上記の実施の形態に限定されるものではなく、例えば、図５に示す如く収容されるボタン電池６は複数個であっても良い。かかる包装体１は、複数の収容部５を簡単に成形できるため、各ボタン電池６が互いに接触しあうおそれはない。
【００２２】
更に、図６及び図７に示すように、剛性を付与するために、前記凹凸加工を行った後に、収容部材３及び封着部材７の周囲の全周又は一部に段差部２０を形成することもできる。かかる段差部２０は、常温又は若干加熱してプレス等して形成する。尚、段差部２０の深さは、０．２〜１ｍｍ程度が好ましい。
【００２３】
更に、前記封着部材７におけるボタン電池６の対応する位置には、開封用のミシン目１９を形成することも可能である。
【００２４】
また、図８及び図９に示す如く、収容部材３及び封着部材７に（収容部材３及び封着部材７の両方の長辺に沿うように）、線状のリブ２１をそれぞれ形成しても良い。かかる場合も、凹凸加工に加えて収容部材３及び封着部材７の補強を図ることができる。
【００２５】
尚、前記両方のプラスチックフィルム３ａ，７ａを密着させてなる凹凸部１７は、収容部材３と封着部材７の収容部５以外の重ね合わせ部分略全面に設けることが好ましいが、所定の一部を除いて設けることも可能である。
【００２６】
図１０〜図１３は、更に本発明の他の実施の形態を示す。前記図１〜図９に示した実施の形態では、収容部材３と封着部材７との両方の重ね合わせ部分を密着させた状態で凹凸状に接合したが、本実施の形態では、封着部材７との間に空間２５を有するように、収容部材３にリブ２１ａを設けたものである。
【００２７】
リブ２１ａは、例えば収容部材３の外周部に位置するようにフィルム３ａを断面が屈曲した形状（例えば幅０．５〜３ｍｍ、高さ０．２〜１．５ｍｍ程度）で連続して環状に形成されており、前記収容部材３はリブ２１ａと収容部５以外の部分が、封着部材７によってシールされている。尚、封着部材７の表面は凹凸状に形成されている（凹凸部７ｃで示す）。また、収容部材３の表面は、封着部材７のように凹凸状ではない。従って、収容部材３の封着部材７との重ね合わせ部分の表面は平滑面となっている（図１１参照）。
【００２８】
尚、前記収容部材３には、封着部材７とのシール時にリブ２１ａ内の空気を排出可能な補助リブ２１ｂが、リブ２１ａの空間２５と連通して設けられている。
【００２９】
かかる包装体の製造方法について説明する。先ず、前記の実施の形態と同様にプラスチックフィルム３ａに真空成形機等により、収容部５及びリブ２１ａを形成する。
【００３０】
次に、図１３に示す如く前記収容部５にボタン電池６を収容した後に、封着部材７となるプラスチックフィルム７ａを収容部材３となるプラスチックフィルム３ａに重ね合わせ、ヒートシール装置１５により、両方のプラスチックフィルム３ａ，７ａを熱溶着する。尚、ここで、ヒートシール装置１５の封着部材７となるプラスチックフィルム７ａを押圧する加熱部１５ｂ側にエンボス加工用の凹凸面（例えばピッチ０．５〜２．５ｍｍで凸部を有するように）が形成されている。また、収容部材３となるプラスチックフィルム３ａを押圧する受け部１５ａには、エンボス加工用の凹凸面は形成されていない。尚、この場合、凹凸加工後の両方のプラスチックフィルム３ａ，７ａの厚さは加工前とほとんど変わらない。
【００３１】
更に、次工程において、互いに重ね合わされたプラスチックフィルム３ａ，７ａを所定の長さ及び形状に切断することにより、包装体１を形成する。
以上により形成された包装体は、リブ２１ａにより補強効果があり、リブと凹凸面（ヒートシール時のエンボス加工）によって包装体（フィルム）の湾曲（反り）も緩和できる。
【００３２】
また、前記リブ２１ａは、連続する環状に設ける必要はなく、図１２（ｂ）に示す如く、収容部材３及び封着部材７の両方の長辺に沿うように平行に設けたものであっても良く、適宜位置に部分的に設けることも可能である。
【００３３】
尚、前記それぞれの実施の形態では、長尺状プラスチックフィルムを互いに溶着した後に、フィルムを所定の形状に切断することにより、包装体１を形成したが、予め所定の形状にそれぞれのフィルム３ａ，７ａを切断しておき、一方のフィルム３ａに収容部５を形成した後に、両方のフィルム３ａ，７ａ同士を溶着しても良い。
【００３４】
【実施例１】
図１４に本発明の実施例を示す。本実施例は、収容部材３と封着部材７をそれぞれ複数のフィルム層から構成したものである。封着部材７は、外側から印刷が施された厚さ１６μｍのポリエステル層７ｂと、厚さ３０μｍのポリエステル合成紙７ｃと、厚さ３０μｍのシール性ポリエステル層７ｄから構成されている。
【００３５】
また、収容部材３は、封着部材７側から厚さ３０μｍのシール性ポリエステル層３ｂと、厚さ１６μｍのポリエステル層３ｃから構成されている。そして、収容部材３と封着部材７のそれぞれのシール性ポリエステル層３ｂ，７ｄ同士を重ね合わせて、点シールによって熱接着している。点シールの各点（凸部１７ａ）のピッチは、１ｍｍで、両方のプラスチックフィルム３ａ，７ａの凹凸加工後（点シール後）の厚さＴは、１７２μｍである。
【００３６】
上記の構成を有する本実施例の包装体は、適度な剛性を有し、外観も良好な質感を有することとなった。
【００３７】
【実施例２】
封着部材７として、外側から厚さ１６μｍのポリエステル層、両面に印刷を施したポリエステル系合成紙５０μｍ、厚さ３０μｍのエチレン酢酸ビニル共重合体を主成分とした熱接着性樹脂を使用する。
【００３８】
収容部材３として厚さ２５０μｍのポリエステル（Ａ−ＰＥＴ）シートを使用し、真空成形によってボタン電池の収容部５と環状のリブ２１ａを形成した。収容部材３にボタン電池６を収容し、封着部材７を重ね合わせて、封着部材７側から表面（加熱部）にエンボス加工した熱板（ピッチ０．５ｍｍの凸部が形成されたもの）により押圧した。このことにより、封着部材７の表面に凹凸面が形成され、本実施例の包装体は、適度な剛性を有し、外観も良好な質感を有することとなった。
【００３９】
【発明の効果】
以上のように本発明のボタン電池包装体は、収容部材及び封着部材が、それぞれプラスチックフィルムから構成されているので、包材の分別廃棄が簡単である。厚さの合計が４００μｍ以下となるフィルムを採用することにより、材料コストが安くなると共に、過剰包装的なイメージも減少する。
【００４０】
更に、収容部材及び封着部材の重ね合わせ部分は、凹凸状に成形されているので、薄肉フィルムを採用した場合にも、包装材に曲げ強度を強くすることができ、また、収容部材に収容部を成形するため、収容されたボタン電池の位置を安定させることができ、特に、複数のボタン電池をまとめて収容する場合には、ボタン電池同士の接触を防止できる。しかも、収容部材は成形していることから、高級感も維持できる。
【００４１】
また、前記収容部材及び封着部材は、それぞれプラスチックフィルムから構成されると共に、封着部材は凹凸状に成形され、前記収容部材には、封着部材との間に空間を有するように、リブが設けられているので、封着部材の凹凸加工に加えて収容部材のリブにより、包装体が湾曲すること（反り）を緩和でき、包装体の補強を図ることができ、包装材の曲げ強度を強くすることができる。
【図面の簡単な説明】
【図１】本発明の一実施の形態を示す包装体の斜視図。
【図２】図１のＡ−Ａ線矢視断面図。
【図３】同包装体の要部断面図。
【図４】包装体の製造工程を示し、（ａ）は収容部材用のプラスチックフィルムを示す断面図、（ｂ）は同フィルムを成形した状態の断面図、（ｃ）は収容部材用のプラスチックフィルムと封着部材用のプラスチックフィルムとを溶着する状態の断面図。
【図５】本発明の他の実施の形態の包装体の斜視図。
【図６】本発明の他の実施の形態の包装体の斜視図。
【図７】（ａ）は図６のＡ−Ａ線矢視断面図、（ｂ）は図６のＢ−Ｂ線矢視断面図。
【図８】本発明の他の実施の形態の包装体の斜視図。
【図９】図８のＢ−Ｂ線矢視断面図。
【図１０】（ａ）は本発明の他の実施の形態を示す包装体の斜視図、（ｂ）は（ａ）のＸ部を示す拡大斜視図。
【図１１】同包装体の要部断面図。
【図１２】（ａ）は図１０のＢ−Ｂ線矢視断面図、（ｂ）はリブの状態を示す要部斜視図。
【図１３】包装体の製造工程を示す収容部材用のプラスチックフィルムと封着部材用のプラスチックフィルムとを溶着する状態の断面図。
【図１４】本発明の実施例を示す断面図。
【図１５】従来例を示す包装体の断面斜視図。
【符号の説明】
３…収容部材、５…収容部、６…ボタン電池、７…封着部材、２５…空間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a button battery package for packaging a button battery.
[0002]
[Prior art]
Conventionally, a package for housing a button battery (a disk-shaped button-type battery used for a watch, a camera, etc.) has a plastic sheet so as to have a housing portion 31 for housing a button battery 30 as shown in FIG. And a mount 33 made of a paper material that is overlapped with the accommodation member 32 and bonded via an adhesive so as to close the opening side of the accommodation portion 31 ( Conventional Example 1).
[0003]
As another package, there is one in which the button battery is accommodated in a film bag made of polypropylene or the like (conventional example 2).
[0004]
[Problems to be solved by the invention]
In the packaging body of the conventional example 1, the material of the housing member 32 and the mount 33 is different (there is a difference between plastic and paper), and they are adhered to the entire surface. The sorting and disposal of the packaging material is troublesome. In addition, since the housing member 32 made of a thick plastic sheet and the thick mount 33 are used in order to give the packaging material rigidity, there is a disadvantage that the material cost becomes high and there is an image of excessive packaging.
[0005]
Moreover, the packaging body of the above-described conventional example 2 lacks the texture as a relatively expensive button battery packaging body, and the position of the accommodated button battery becomes unstable. In particular, when a plurality of button batteries are accommodated together, it is difficult to package a plurality of button batteries together because the button batteries contact each other.
[0006]
The present invention has been made in view of the above-described conventional problems, and can easily separate and discard the packaging material. Even when the packaging material is formed of a thin film, it has rigidity and can reduce the material cost. It is an object of the present invention to provide a button battery package that can package a plurality of button batteries while maintaining a high-class feeling.
[0007]
[Means for Solving the Problems]
The present invention has been made as a button battery package in order to solve the above-mentioned problems. The feature of the present invention is that the housing member 3 having the housing portion 5 in which the button battery 6 is housed and the opening of the housing portion 5 are closed. In the button battery package comprising the sealing member 7 that is superimposed on the housing member 3 and thermally welded, the housing member 3 and the sealing member 7 are each made of a plastic film and the housing The overlapping portions of the member 3 and the sealing member 7 are in close contact with each other, and the sealing member 7 is formed so as to form a continuous concavo-convex portion. The rib 21a is provided in an annular shape so as to have a space 25 between the first end 7 and the one end of the rib 21a. Located in In that the auxiliary rib 21b which communicates with the air is provided in a straight line.
Furthermore, by adopting a film in which the total thickness of the plastic films constituting the housing member 3 and the sealing member 7 is 400 μm or less, the material cost is reduced, and the over-packaging image is also reduced.
[0008]
In the button battery package of the present invention, since the housing member and the sealing member are each made of a plastic film, it can be treated as plastic waste, and there is no need to separate the materials at the time of disposal. Compared with the packaging material having a different material for the sealing member, the disposal thereof is simple.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a first embodiment of the present invention, and a packaging body 1 in this embodiment includes a housing member 3 made of a plastic film, and a housing portion 5 formed in the housing member 3 in a concave shape. The button battery 6 housed inside and the sheet-like sealing member 7 superimposed on the housing member 3 so as to close the opening side of the housing portion 5 are formed in a rectangular shape in plan view. A locking hole 8 is formed in one (upper part) of the package 1.
[0013]
The housing member 3 is made of a polyester resin such as PET (polyethylene terephthalate), PVC (polyvinyl chloride), PP (polypropylene) resin, PS (polystyrene) resin, or the like. 50 μm to 250 μm) of a single-layer or multilayer transparent thin sheet.
[0014]
The sealing member 7 is made of a single layer or multilayer resin film, synthetic paper, or the like having a thickness of 20 μm to 150 μm, such as polyester such as PET, PVC, PP, or PS. However, it is desirable to combine the sealing member 3 so that the total thickness with the housing member 3 is 400 μm or less. Moreover, it is preferable to employ a homogeneous film such as polyester resin. On the front and back or one side of the film or the like constituting the housing member 3 and / or the sealing member 3, printing of characters, patterns, and the like is appropriately performed. Here, since the accommodating member 3 is transparent, the button battery 6 accommodated in the printing and accommodating portion 5 can be seen through. In addition, the transparency of the housing member 3 includes translucency to the extent that the button battery 6 housed in the printing and housing portion 5 can be seen through.
[0015]
The accommodation member 3 and the sealing member 7 are overlapped with each other in an airtight manner (adherent state) except for the accommodation portion 5 and are thermally bonded. Therefore, the accommodating part 5 becomes a dome shape filled with air in a sealed state, and has an elastic force.
[0016]
Next, the manufacturing method of a package is demonstrated. First, the elongate plastic film 3a used as the accommodating member 3 is drawn out, and the accommodating portion 5 is formed by, for example, a vacuum forming machine (not shown) having a roll-shaped vacuum forming die (FIGS. 4A and 4B). b)).
[0017]
Next, after the button battery 6 is accommodated in the accommodating portion 5, the plastic film 7a serving as the sealing member 7 is superimposed on the plastic film 3a serving as the accommodating member 3, and both the plastic films 3a, 7a is heat-welded (see FIG. 4C). The heat seal device 15 includes a planar receiving portion 15a and a heating portion 15b that approaches or separates from the receiving portion 15a and is thermocompression-bonded, or both receiving portions and the heating portion are rolled. It is also possible to use a configuration in which both the plastic films 3a and 7a are thermocompression bonded while being continuously fed between rolls.
[0018]
In addition, the heat seal device 15 performs an unevenness process (embossing) 17 such as a point seal or a line seal on both the plastic films 3a and 7a that are superimposed as shown in FIGS. Here, the point seal is, for example, a heating seal plate (roll) formed with a lattice-shaped recess so that the recess 17a is formed in a lattice line shape or the like on the surface side of the plastic film 3a serving as the housing member 3. The case where it crimps | bonds by a dot-shaped convex part. The line seal refers to a case where the convex portion 17b is pressure-bonded by a heat seal plate (roll) in which lattice-shaped convex portions are formed on the surface side of the plastic film 3a. Here, the pitch P of the concave portion 17a or the convex portion 17b is set within a range of 0.5 to 2.5 mm. Moreover, the thickness T after the uneven | corrugated process of both the plastic films 3a and 7a is set to 1.2 to 2.0 times the thickness before an uneven | corrugated process.
[0019]
Further, in the next step, the plastic film 3a, 7a overlapped with each other is cut into a predetermined length and shape to form the package 1. Since the package 1 is provided with the concavo-convex portion 17 that is in close contact with a portion other than the accommodating portion 5, the texture is improved and the concavo-convex portion 17 is reinforced although each film is a thin sheet. The effect of ribs is produced and the waist is strong (bending strength is strong). Moreover, since the packaging body 1 becomes strong, the curvature at the time of heat-welding both films can also be relieved.
[0020]
Further, since the entire circumference of the accommodating portion 5 is sealed in an airtight manner, the button battery does not easily dent or deform even if the accommodating portion 5 is pressed to some extent due to a cushioning effect by air. 6 is protected.
[0021]
The present invention is not limited to the above-described embodiment. For example, a plurality of button batteries 6 may be accommodated as shown in FIG. Since this packaging body 1 can shape | mold the some accommodating part 5 easily, there is no possibility that each button battery 6 will mutually contact.
[0022]
Further, as shown in FIG. 6 and FIG. 7, a step 20 is formed on the entire circumference or part of the periphery of the housing member 3 and the sealing member 7 after performing the concave and convex processing in order to impart rigidity. You can also. The step portion 20 is formed by pressing or the like at normal temperature or slightly heating. The depth of the step portion 20 is preferably about 0.2 to 1 mm.
[0023]
Further, a perforation 19 for opening can be formed at a position corresponding to the button battery 6 in the sealing member 7.
[0024]
Also, as shown in FIGS. 8 and 9, linear ribs 21 are respectively formed on the housing member 3 and the sealing member 7 (along the long sides of both the housing member 3 and the sealing member 7). Also good. In such a case, the housing member 3 and the sealing member 7 can be reinforced in addition to the uneven processing.
[0025]
In addition, it is preferable that the uneven portion 17 formed by bringing both the plastic films 3a and 7a into close contact with each other is provided on substantially the entire overlapped portion other than the housing portion 5 of the housing member 3 and the sealing member 7, but a predetermined part. It is also possible to provide without.
[0026]
10 to 13 show still another embodiment of the present invention. In the embodiment shown in FIG. 1 to FIG. 9, the overlapping portions of both the housing member 3 and the sealing member 7 are joined in a concavo-convex state, but in this embodiment, sealing is performed. The accommodating member 3 is provided with ribs 21 a so as to have a space 25 between the member 7 and the member 7.
[0027]
The rib 21a is continuously annular in a shape (for example, a width of about 0.5 to 3 mm and a height of about 0.2 to 1.5 mm) in which the cross section of the film 3a is bent so as to be positioned on the outer peripheral portion of the housing member 3, for example. The accommodating member 3 is sealed by a sealing member 7 at a portion other than the rib 21 a and the accommodating portion 5. The surface of the sealing member 7 is formed in an uneven shape (indicated by an uneven portion 7c). Further, the surface of the housing member 3 is not uneven like the sealing member 7. Therefore, the surface of the overlapping portion of the housing member 3 with the sealing member 7 is a smooth surface (see FIG. 11).
[0028]
The accommodating member 3 is provided with an auxiliary rib 21b that can discharge the air in the rib 21a when sealed with the sealing member 7 so as to communicate with the space 25 of the rib 21a.
[0029]
A method for producing such a package will be described. First, the accommodating part 5 and the rib 21a are formed in the plastic film 3a by a vacuum forming machine or the like as in the above embodiment.
[0030]
Next, as shown in FIG. 13, after the button battery 6 is accommodated in the accommodating portion 5, the plastic film 7 a serving as the sealing member 7 is superposed on the plastic film 3 a serving as the accommodating member 3, and both are sealed by the heat seal device 15. The plastic films 3a and 7a are heat-welded. Here, an uneven surface for embossing (for example, having a convex portion with a pitch of 0.5 to 2.5 mm) on the heating unit 15b side that presses the plastic film 7a that becomes the sealing member 7 of the heat sealing device 15 is provided. ) Is formed. Further, the concave and convex surface for embossing is not formed on the receiving portion 15 a that presses the plastic film 3 a serving as the housing member 3. In this case, the thicknesses of both the plastic films 3a and 7a after the concavo-convex processing are almost the same as before the processing.
[0031]
Further, in the next step, the plastic film 3a, 7a overlapped with each other is cut into a predetermined length and shape to form the package 1.
The package formed as described above has a reinforcing effect due to the ribs 21a, and the curvature (warp) of the package (film) can be reduced by the ribs and the uneven surface (embossing during heat sealing).
[0032]
Further, the rib 21a does not need to be provided in a continuous annular shape, and is provided in parallel along the long sides of both the housing member 3 and the sealing member 7, as shown in FIG. Alternatively, it may be partially provided at an appropriate position.
[0033]
In each of the above embodiments, the packaging body 1 is formed by welding the long plastic films to each other and then cutting the films into a predetermined shape. However, each film 3a, After cutting 7a and forming the accommodating part 5 in one film 3a, both films 3a and 7a may be welded together.
[0034]
[Example 1]
FIG. 14 shows an embodiment of the present invention. In this embodiment, the housing member 3 and the sealing member 7 are each composed of a plurality of film layers. The sealing member 7 includes a polyester layer 7b having a thickness of 16 μm printed from the outside, a polyester synthetic paper 7c having a thickness of 30 μm, and a sealing polyester layer 7d having a thickness of 30 μm.
[0035]
The accommodating member 3 is composed of a sealing polyester layer 3b having a thickness of 30 μm and a polyester layer 3c having a thickness of 16 μm from the sealing member 7 side. And each sealing polyester layer 3b, 7d of the accommodating member 3 and the sealing member 7 is piled up, and it heat-bonds by the point seal | sticker. The pitch of each point (convex part 17a) of the point seal is 1 mm, and the thickness T of the both plastic films 3a and 7a after the unevenness processing (after the point seal) is 172 μm.
[0036]
The package of the present example having the above-described configuration has an appropriate rigidity and a good appearance.
[0037]
[Example 2]
As the sealing member 7, a thermoadhesive resin mainly composed of a polyester layer having a thickness of 16 μm from the outside, 50 μm of polyester synthetic paper printed on both sides, and an ethylene vinyl acetate copolymer having a thickness of 30 μm is used.
[0038]
A polyester (A-PET) sheet having a thickness of 250 μm was used as the housing member 3, and the housing portion 5 of the button battery and the annular rib 21a were formed by vacuum forming. A button plate 6 is housed in the housing member 3, a sealing member 7 is overlaid, and a hot plate embossed on the surface (heating portion) from the sealing member 7 side (a convex portion having a pitch of 0.5 mm is formed). ). As a result, an uneven surface was formed on the surface of the sealing member 7, and the package of this example had moderate rigidity and a good appearance.
[0039]
【The invention's effect】
As described above, in the button battery package according to the present invention, since the housing member and the sealing member are each made of a plastic film, it is easy to separate and discard the packaging material. By adopting a film having a total thickness of 400 μm or less, the material cost is reduced and the image of excessive packaging is also reduced.
[0040]
Further, since the overlapping portion of the housing member and the sealing member is formed in a concavo-convex shape, even when a thin film is employed, the bending strength can be increased in the packaging material, and the housing member can be accommodated. Since the portion is molded, the position of the accommodated button battery can be stabilized. In particular, when a plurality of button batteries are accommodated together, contact between the button batteries can be prevented. Moreover, since the housing member is molded, a high-class feeling can be maintained.
[0041]
In addition, each of the housing member and the sealing member is made of a plastic film, the sealing member is formed in a concavo-convex shape, and the housing member has a rib so as to have a space between the sealing member and the sealing member. Therefore, it is possible to relieve the bending of the packaging body (warping) by the ribs of the housing member in addition to the concave and convex processing of the sealing member, the reinforcement of the packaging body, and the bending strength of the packaging material Can be strengthened.
[Brief description of the drawings]
FIG. 1 is a perspective view of a package showing an embodiment of the present invention.
2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view of the main part of the package.
4A and 4B show a manufacturing process of a package, wherein FIG. 4A is a cross-sectional view showing a plastic film for a housing member, FIG. 4B is a cross-sectional view of the molded film, and FIG. Sectional drawing of the state which welds the film and the plastic film for sealing members.
FIG. 5 is a perspective view of a package according to another embodiment of the present invention.
FIG. 6 is a perspective view of a package according to another embodiment of the present invention.
7A is a cross-sectional view taken along line AA in FIG. 6, and FIG. 7B is a cross-sectional view taken along line BB in FIG.
FIG. 8 is a perspective view of a package according to another embodiment of the present invention.
9 is a cross-sectional view taken along line BB in FIG.
FIG. 10A is a perspective view of a package showing another embodiment of the present invention, and FIG. 10B is an enlarged perspective view showing an X part of FIG.
FIG. 11 is a cross-sectional view of the main part of the package.
12A is a cross-sectional view taken along line BB in FIG. 10, and FIG. 12B is a perspective view of a main part showing a state of a rib.
FIG. 13 is a cross-sectional view showing a state in which a plastic film for a housing member and a plastic film for a sealing member are welded, showing a manufacturing process of a package.
FIG. 14 is a cross-sectional view showing an embodiment of the present invention.
FIG. 15 is a cross-sectional perspective view of a package showing a conventional example.
[Explanation of symbols]
3 ... accommodating member, 5 ... accommodating portion, 6 ... button battery, 7 ... sealing member, 25 ... space

Claims

A housing member (3) having a housing portion (5) in which the button battery (6) is housed, and a seal that is overlapped and thermally welded to the housing member (3) so as to close the opening of the housing portion (5). In the button battery package including the attachment member (7), the housing member (3) and the sealing member (7) are each made of a plastic film, and the housing member (3) and the sealing member ( 7) the overlapping portions are in close contact with each other, and the sealing member (7) is formed so as to form a continuous concavo-convex portion. Further, the accommodating member (3) has a sealing member ( 7), the rib (21a) is provided in an annular shape so as to have a space (25) between the other end and the one end intersecting the rib (21a) and communicating with the space (25), and the other end Is located at the outer peripheral end of the housing member (3) and communicates with the outside air Button battery packaging body auxiliary rib (21b) is characterized in that provided in a straight line.

2. The button battery package according to claim 1, wherein the total thickness of the plastic films constituting the housing member (3) and the sealing member (7) is 400 μm or less.

The button battery packaging body according to any one of claims 1 to 2 , wherein the housing member (3) and the sealing member (7) are each made of a plastic film having a thickness of 150 µm or less.