JP5049555B2 - Blister case for battery - Google Patents

Blister case for battery Download PDF

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JP5049555B2
JP5049555B2 JP2006297920A JP2006297920A JP5049555B2 JP 5049555 B2 JP5049555 B2 JP 5049555B2 JP 2006297920 A JP2006297920 A JP 2006297920A JP 2006297920 A JP2006297920 A JP 2006297920A JP 5049555 B2 JP5049555 B2 JP 5049555B2
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battery
container
blister case
shaped bent
container portion
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JP2008117571A (en
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浩 柴田
眞司 入戸野
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FDK Energy Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Description

本発明は、複数個の電池を一つにまとめてディスプレイ包装する電池用ブリスターケースに関する。   The present invention relates to a blister case for a battery in which a plurality of batteries are combined into a display package.

ＬＲ等の円筒型乾電池は通常、あらかじめ複数本ずつまとめて包装されて流通市場へ出荷されるが、その包装手段としてはブリスターケースが多用されている。このブリスターケースは、熱可塑性樹脂からなる透明薄板素材を成形加工したものであって、その成形加工により、複数個の電池を並べて収納する開放容器部が形成されている。   Usually, a plurality of cylindrical dry batteries such as LR are packed together in advance and shipped to the distribution market, and blister cases are often used as the packaging means. This blister case is obtained by molding a transparent thin plate material made of a thermoplastic resin, and an open container portion for storing a plurality of batteries side by side is formed by the molding process.

図３は従来の典型的な電池用ブリスターケースを示す。同図において、（ａ）はケース全体の斜視図、（ｂ）は（ａ）のＡ−Ａ断面（切断面）をそれぞれ示す。同図に示す電池用ブリスターケース２０１は、ペット樹脂等の熱可塑性樹脂からなる透明薄板素材に、真空金型成形加工により、開放容器部２１１を一体形成したものであって、その容器部２１１には複数個（４本）の円筒型乾電池１０を並べて収納する略矩形の収納空間が形成されている。   FIG. 3 shows a conventional typical battery blister case. In the same figure, (a) is a perspective view of the whole case, (b) shows the AA cross section (cut surface) of (a). The battery blister case 201 shown in the figure is formed by integrally forming an open container portion 211 by a vacuum mold forming process on a transparent thin plate material made of a thermoplastic resin such as a pet resin. Is formed with a substantially rectangular storage space for storing a plurality (four) of cylindrical dry batteries 10 side by side.

上記容器部２１１の外周囲はフランジ状の周縁部２２１で取り囲まれており、その周縁部２２１が台紙３０に貼着固定されることにより、容器部２１１の開口面が覆われ、内容物である電池１０が外部から透視可能な状態で閉じこめられる。   The outer periphery of the container part 211 is surrounded by a flange-like peripheral part 221, and the peripheral part 221 is adhered and fixed to the mount 30, whereby the opening surface of the container part 211 is covered and is the contents. The battery 10 is confined in a state where it can be seen through from the outside.

上記電池用ブリスターケース２０１では、容器部２１１内の電池１０を安定に保持するため、その容器部２１１の側壁に、容器部２１１の内側へ突出するリブ２３１が設けられている（たとえば、特許文献１，２参照）。   In the battery blister case 201, in order to stably hold the battery 10 in the container portion 211, ribs 231 that protrude toward the inside of the container portion 211 are provided on the side walls of the container portion 211 (for example, Patent Documents). 1 and 2).

この電池用ブリスターケース２０１は、内容物である電池１０を外部から透視できるため、電池を展示・陳列状態で販売するのに好都合である。電池は、外観形状が規格化されて同じでも種類が多種多様化している。このため、陳列・販売用の電池包装には、外部から現品を直接、目視確認できるブリスターケースが重用されている。
特開２０００−２８１１２９ 特開２００２−３４３３２１ Since the battery blister case 201 can see through the battery 10 as the contents from the outside, it is convenient for selling the battery in an exhibition / display state. Batteries are of various types even though the external shape is standardized. For this reason, a blister case that can visually confirm the actual product directly from the outside is heavily used in battery packaging for display and sales.
JP 2000-281129 A JP 2002-343321 A

しかしながら、上述した従来技術には、次のような問題のあることが本発明者らによってあきらかとされた。
すなわち、上述した電池用ブリスターケース２０１には、商品価値を高めるために、電池１０がその外装ラベルの向きを揃えて並べられた状態で収納されるが、この収納電池１０の回転を防止し、かつ台紙３０を剥がした際などに電池１０が誤って脱落したりするのを防止するために、容器部２１１の内側へ突出するリブ２３１が設けられている。しかし、このリブ２３１は、容器部２１１を金型成形によって形成した際の離型を困難にするため、生産性を阻害してしまう。 However, the present inventors have made it clear that the above-described prior art has the following problems.
That is, in the above-described battery blister case 201, in order to increase the commercial value, the battery 10 is stored in a state in which the direction of the exterior label is aligned, and the rotation of the storage battery 10 is prevented. In addition, a rib 231 that protrudes to the inside of the container portion 211 is provided in order to prevent the battery 10 from being accidentally dropped when the mount 30 is peeled off. However, since this rib 231 makes it difficult to release the container portion 211 when it is formed by die molding, productivity is hindered.

また、そのリブ２３１が円滑な成形動作を妨げるため、肉厚や寸法等の品質のバラツキが大きくなってしまう。さらに、上記リブ２３１を形成するための成形金型は、形状および加工が複雑で高コストになってしまう。   Moreover, since the rib 231 prevents a smooth molding operation, variations in quality such as thickness and dimensions are increased. Further, the molding die for forming the rib 231 is complicated in shape and processing and is expensive.

容器部２１１内の電池１０を上記リブ２３１によって安定に保持させるためには、そのリブ２３１による容器部２１１内側への突出をある程度以上大きくする必要がある。しかし、リブ２３１の突出の大きさは離型が困難になるために限界があり、仮に大きくできた場合には、そのリブ２３１の突出が電池１０の収納および取り出しの際に障害物となって、作業性および利便性が悪くなってしまうという背反が生じる。   In order to stably hold the battery 10 in the container portion 211 by the rib 231, it is necessary to increase the protrusion of the rib 231 to the inside of the container portion 211 to some extent. However, the size of the protrusion of the rib 231 is limited because it becomes difficult to release the mold, and if it can be increased, the protrusion of the rib 231 becomes an obstacle when the battery 10 is stored and taken out. There is a contradiction that workability and convenience deteriorate.

容器部２１１に収納した電池１０は、電池の種類や型番等を透視できるようにするため、さらには展示・陳列等の意匠的効果を高めるためにも、外側ラベル面の特定位置が常に同一方向を向いているように保持することが望ましい。   The battery 10 housed in the container 211 has a specific position on the outer label surface always in the same direction so that the type, model number, etc. of the battery can be seen through, and in order to enhance design effects such as display and display. It is desirable to keep it facing.

また、ブリスターケース２０１の容器部２１１に収納された電池１０の回転および脱落を防止する方法しては、その容器部２１１の寸法を収納電池１０の寸法に対して小さく形成することが考えられる。しかし、この場合は、容器部２１１内に電池１０を無理に押し込むことになるため、ブリスターケース２０１全体が電池１０の収納によって変形してしまう。この変形が生じると、たとえば台紙３０に安定に貼着できない、あるいは台紙３０が湾曲してしまうといった不都合が生じる。   Further, as a method for preventing the rotation and dropping of the battery 10 stored in the container part 211 of the blister case 201, it is conceivable that the dimension of the container part 211 is made smaller than the dimension of the storage battery 10. However, in this case, since the battery 10 is forcibly pushed into the container portion 211, the entire blister case 201 is deformed by the storage of the battery 10. When this deformation occurs, for example, there is a problem that it cannot be stably attached to the mount 30 or the mount 30 is curved.

本発明は以上のような問題を克服するものであって、その目的は、電池の回転防止および脱落防止に有効で、収納電池の外側ラベル面を一定方向に安定に保つことができる良好な保持性を備えるとともに、電池の収納および取り出しの作業性および利便性が良く、また、成型金型の低コスト化と、離型の円滑化による生産性および品質の向上が可能であり、さらに、電池の収納によるケースの変形を防止できるようにした電池用ブリスターケースを提供することにある。   The present invention overcomes the above-described problems, and its purpose is effective in preventing rotation and dropping of the battery, and good holding that can stably keep the outer label surface of the storage battery in a certain direction. In addition, the battery has good workability and convenience for storing and taking out the battery, and it is possible to improve the productivity and quality by reducing the cost of the molding die and facilitating the mold release. An object of the present invention is to provide a battery blister case that can prevent deformation of the case due to storage.

本発明の上記以外の目的および構成については、本明細書の記述および添付図面にてあきらかにする。   Other objects and configurations of the present invention will be clarified in the description of the present specification and the accompanying drawings.

本発明は次のような解決手段を提供する。
（１）熱可塑性樹脂からなる透明薄板素材への成形加工によって複数個の電池を並べて収納する開放容器部が形成された電池用ブリスターケースにおいて、上記容器部の寸法が収納電池の寸法に対して小さく形成されているとともに、上記容器部の少なくとも一つの側面に沿って、容器部の開口面に対して垂直方向を向くＵ字状屈曲部が形成され、このＵ字状屈曲部が容器部内の収納電池を容器部側方から常時押圧して固定するバネを形成していることを特徴とする電池用ブリスターケース。
（２）上記手段（１）において、上記容器部の外周囲を取り囲んでフランジ状の周縁部が形成され、その周縁部が台紙に貼着固定されることにより上記容器部の開口面が閉塞されていることを特徴とする電池用ブリスターケース。
（３）上記手段（１）または（２）において、上記Ｕ字状屈曲部の片側面が上記容器部の側壁部を形成していることを特徴とする電池用ブリスターケース。
（４）上記手段（１）〜（３）のいずれかにおいて、上記容器部の収納空間が略矩形状に形成されるとともに、その容器部の４方向の側面にそれぞれ上記Ｕ字状屈曲部が形成されていることを特徴とする電池用ブリスターケース。 The present invention provides the following solutions.
(1) In a battery blister case in which an open container part for storing a plurality of batteries side by side is formed by molding into a transparent thin plate material made of a thermoplastic resin, the dimensions of the container part with respect to the dimensions of the storage battery A U-shaped bent portion is formed along the at least one side surface of the container portion and is perpendicular to the opening surface of the container portion, and the U-shaped bent portion is formed in the container portion. A blister case for a battery, characterized in that a spring is formed to constantly press and fix the storage battery from the side of the container.
(2) In the means (1), a flange-shaped peripheral portion is formed surrounding the outer periphery of the container portion, and the peripheral portion is adhered and fixed to the mount so that the opening surface of the container portion is closed. A blister case for batteries.
(3) The blister case for a battery according to the means (1) or (2), wherein one side surface of the U-shaped bent portion forms a side wall portion of the container portion.
(4) In any one of the means (1) to (3), the storage space of the container part is formed in a substantially rectangular shape, and the U-shaped bent parts are respectively provided on the four side surfaces of the container part. A blister case for a battery which is formed.

電池の回転防止および脱落防止に有効で、収納電池の外側ラベル面を一定方向に安定に保つことができる良好な保持性を備えるとともに、電池の収納および取り出しの作業性および利便性が良く、また、成型金型の低コスト化と、離型の円滑化による生産性および品質の向上が可能であり、さらに、電池の収納によるケースの変形を防止できるようにした電池用ブリスターケースを提供することができる。   It is effective in preventing rotation and dropping of the battery, has good holding ability to stably keep the outer label surface of the storage battery in a certain direction, and has good workability and convenience for storage and removal of the battery. An object of the present invention is to provide a battery blister case that can improve the productivity and quality by reducing the cost of molding dies and facilitating mold release, and can prevent deformation of the case due to battery storage. Can do.

上記以外の作用／効果については、本明細書の記述および添付図面にてあきらかにする。   The operations / effects other than the above will be clarified in the description of the present specification and the accompanying drawings.

図１は本発明による電池用ブリスターケース２０の一実施形態を示す。図１において、（ａ）は全体の平面図、（ｂ）はその斜視図をそれぞれ示す。また、図２は、図１に示したブリスターケース２０の断面図を示す。図２において、（ａ）は図１のＡ−Ａ断面（切断面）、（ｂ）は同図のＢ−Ｂ断面（切断面）をそれぞれ示す。   FIG. 1 shows an embodiment of a battery blister case 20 according to the present invention. 1A is a plan view of the whole, and FIG. 1B is a perspective view thereof. 2 shows a cross-sectional view of the blister case 20 shown in FIG. 2, (a) shows an AA cross section (cut plane) of FIG. 1, and (b) shows a BB cross section (cut plane) of FIG.

図１と図２で示す電池用ブリスターケース２０は、ペット樹脂等の熱可塑性樹脂からなる透明薄板素材への真空金型成形加工によって形成されたものであり、その成型加工により、複数個（４本）の円筒型乾電池１０を並べて収納する開放容器部２１が形成されている。   The battery blister case 20 shown in FIGS. 1 and 2 is formed by a vacuum die molding process on a transparent thin plate material made of a thermoplastic resin such as a pet resin, and a plurality of (4 An open container portion 21 for storing the cylindrical dry batteries 10 of the present book side by side is formed.

また、上記真空金型成形加工により、容器部２１の外周囲を取り囲んでフランジ状の周縁部２２が形成されている。その周縁部２２が台紙３０に貼着固定されることにより容器部２１の開口面が閉塞されている。   Further, a flange-shaped peripheral edge portion 22 is formed by surrounding the outer periphery of the container portion 21 by the vacuum die forming process. The peripheral surface 22 is stuck and fixed to the mount 30, whereby the opening surface of the container portion 21 is closed.

台紙３０は厚紙または合成樹脂薄板等を用いて作製され、必要に応じて吊り下げ用フック穴が穿設されている。   The mount 30 is made of cardboard, synthetic resin thin plate, or the like, and is provided with a hanging hook hole as necessary.

この実施形態では、容器部２１が略矩形状に形成されるとともに、その容器部２１の４方向の側面にそれぞれ、容器部２１の開口面に対して垂直方向を向くＵ字状屈曲部２３が形成されている（図２）。このＵ字状屈曲部２３は容器部２１の側壁部とは別個に形成してもよいが、この実施形態では、Ｕ字状屈曲部２３の片側面が容器部２１の側壁部を形成している。   In this embodiment, the container part 21 is formed in a substantially rectangular shape, and U-shaped bent parts 23 that face the direction perpendicular to the opening surface of the container part 21 are respectively provided on the side surfaces in the four directions of the container part 21. It is formed (FIG. 2). The U-shaped bent portion 23 may be formed separately from the side wall portion of the container portion 21, but in this embodiment, one side surface of the U-shaped bent portion 23 forms the side wall portion of the container portion 21. Yes.

上記Ｕ字状屈曲部２３は、容器部２１に電池１０が収納されていない空の状態ではやや広幅（ｄ１）のＵ字溝を形成しているが、容器部２１に収納可能な本数の電池１０をすべて収納した状態では、その収納電池１０に押圧されて弾性変形することによりＵ字溝の幅が狭められる（ｄ１からｄ２）。すなわち、Ｕ字状屈曲部２３は、容器部２１内の収納電池１０を容器部２１側方から常時押圧するバネを形成する。   The U-shaped bent portion 23 forms a slightly wide (d1) U-shaped groove in an empty state where the battery 10 is not stored in the container portion 21, but the number of batteries that can be stored in the container portion 21. In the state where all 10 are stored, the U-groove is narrowed by being elastically deformed by being pressed by the storage battery 10 (d1 to d2). That is, the U-shaped bent portion 23 forms a spring that constantly presses the storage battery 10 in the container portion 21 from the side of the container portion 21.

また、上記容器部２１は、図２に示すように、その寸法ｗａ１，ｗｂ１が収納電池１０の寸法ｗａ２，ｗｂ２に対して小さく形成されている。その寸法差（ｗａ２−ｗａ１，ｗｂ２−ｗｂ１）により、電池１０は容器部２１を押し広げながら収納されることになり、容器部２１は押し込まれた電池１０によって内寸法が押し広げられることになる。しかし、その寸法差（ｗａ２−ｗａ１，ｗｂ２−ｗｂ１）による容器部２１の歪みは、Ｕ字状屈曲部２３が形成するＵ字溝幅ｄ１がｄ２に弾性収縮することにより吸収される。つまり、Ｕ字状屈曲部２３は容器部２１の湾曲や膨らみなどの変形を吸収する緩衝帯としても作用する。   Further, as shown in FIG. 2, the container portion 21 is formed such that the dimensions wa1 and wb1 are smaller than the dimensions wa2 and wb2 of the storage battery 10. Due to the dimensional difference (wa2-wa1, wb2-wb1), the battery 10 is accommodated while expanding the container portion 21, and the inner dimension of the container portion 21 is expanded by the pushed battery 10. . However, the distortion of the container portion 21 due to the dimensional difference (wa2-wa1, wb2-wb1) is absorbed by the U-shaped groove width d1 formed by the U-shaped bent portion 23 being elastically contracted to d2. That is, the U-shaped bent portion 23 also functions as a buffer band that absorbs deformation such as bending and swelling of the container portion 21.

これにより、容器部２１に収納された電池１０は、容器部２１の側方から弾性挟持されて安定に保持される。この側方からの弾性挟持により、容器部２１に収納された電池１０は互いに圧接して回転等の移動が規制される。この結果、収納電池１０の外側ラベル面を一定方向に安定に保つことができる良好な保持性を備えることができる。   Thereby, the battery 10 accommodated in the container part 21 is elastically clamped from the side of the container part 21 and is stably held. Due to the elastic pinching from the side, the batteries 10 accommodated in the container portion 21 are pressed against each other, and movement such as rotation is restricted. As a result, the outer label surface of the storage battery 10 can be provided with good retainability that can be stably maintained in a certain direction.

また、電池１０と容器部２１の寸法差（ｗａ２−ｗａ１，ｗｂ２−ｗｂ１）によるケース２０全体の変形が防止されるので、ブリスターケース２０の周縁部２２を台紙３０に貼着固定した場合は、台紙３０への貼着固定を確実に行わせ、その状態を安定に保持させることができる。   Moreover, since the deformation | transformation of the case 20 whole by the dimensional difference (wa2-wa1, wb2-wb1) of the battery 10 and the container part 21 is prevented, when the peripheral part 22 of the blister case 20 is stuck and fixed to the mount 30, The sticking and fixing to the mount 30 can be reliably performed, and the state can be stably maintained.

上記Ｕ字状屈曲部２３は、容器部２１の開口面に対して垂直方向を向くが、この方向は、容器部２１を成形加工する際の金型の移動方向と同じである。したがって、そのＵ字状屈曲部２３を容器部２１とともに成形加工する際は、金型を円滑に離型させて生産性を向上させるとともに、肉厚や寸法等の品質も向上させることができる。成形金型は、成型時の移動方向と直交する方向へ突出あるいは陥没する型部を有しなくてもよいので、その作製コストを大幅に低減させることができる。   The U-shaped bent portion 23 faces in a direction perpendicular to the opening surface of the container portion 21, and this direction is the same as the moving direction of the mold when the container portion 21 is molded. Therefore, when the U-shaped bent portion 23 is molded together with the container portion 21, the mold can be smoothly released to improve productivity, and the quality such as thickness and size can be improved. Since the molding die does not need to have a mold part that protrudes or sinks in a direction orthogonal to the moving direction at the time of molding, the manufacturing cost can be significantly reduced.

以上のように、上述した実施形態のブリスターケース２０は、電池の回転防止および脱落防止に有効で、収納電池の外側ラベル面を一定方向に安定に保つことができる良好な保持性を備えるとともに、電池の収納および取り出しの作業性および利便性が良く、また、成型金型の低コスト化と、離型の円滑化による生産性および品質の向上が可能であり、さらに、電池の収納によるケースの変形も有効に防止することができる。   As described above, the blister case 20 of the above-described embodiment is effective in preventing the battery from rotating and preventing the battery from falling off, and has a good holding property that can stably keep the outer label surface of the storage battery in a certain direction. Battery storage and removal workability and convenience are good, the cost of the molding die can be reduced, and the productivity and quality can be improved by facilitating mold release. Deformation can also be effectively prevented.

以上、本発明をその代表的な実施例に基づいて説明したが、本発明は上述した以外にも種々の態様が可能である。たとえば、上記Ｕ字状屈曲部２３は、上記容器部２１の少なくとも一つの側面に沿って設けるだけでもよい。   As mentioned above, although this invention was demonstrated based on the typical Example, this invention can have various aspects other than having mentioned above. For example, the U-shaped bent portion 23 may be provided only along at least one side surface of the container portion 21.

電池の回転防止および脱落防止に有効で、収納電池の外側ラベル面を一定方向に安定に保つことができる良好な保持性を備えるとともに、電池の収納および取り出しの作業性および利便性が良く、また、成型金型の低コスト化と、離型の円滑化による生産性および品質の向上が可能であり、さらに、電池の収納によるケースの変形を防止できるようにした電池用ブリスターケースを提供することができる。   It is effective in preventing rotation and dropping of the battery, has good holding ability to stably keep the outer label surface of the storage battery in a certain direction, and has good workability and convenience for storage and removal of the battery. An object of the present invention is to provide a battery blister case that can improve the productivity and quality by reducing the cost of molding dies and facilitating mold release, and can prevent deformation of the case due to battery storage. Can do.

本発明による電池用ブリスターケースの一実施形態を示す外観図である。It is an external view which shows one Embodiment of the blister case for batteries by this invention. 図１に示したブリスターケースの要部を示す断面図である。It is sectional drawing which shows the principal part of the blister case shown in FIG. 従来の電池用ブリスターケースの構成例を示す外観図および断面図である。It is the external view and sectional drawing which show the structural example of the conventional blister case for batteries.

符号の説明Explanation of symbols

１０ 電池
２０ ブリスターケース（本発明）
２１ 容器部
２２ フランジ状周縁部
２３ Ｕ字状屈曲部
３０ 台紙
２０１ ブリスターケース（従来）
２１１ 容器部
２２１ フランジ状周縁部
２３１ リブ 10 battery 20 blister case (present invention)
21 Container part 22 Flange-shaped peripheral part 23 U-shaped bending part 30 Mount 201 Blister case (conventional)
211 Container part 221 Flange-shaped peripheral part 231 Rib

Claims (4)

熱可塑性樹脂からなる透明薄板素材への成形加工によって複数個の電池を並べて収納する開放容器部が形成された電池用ブリスターケースにおいて、上記容器部の寸法が収納電池の寸法に対して小さく形成されているとともに、上記容器部の少なくとも一つの側面に沿って、容器部の開口面に対して垂直方向を向くＵ字状屈曲部が形成され、このＵ字状屈曲部が容器部内の収納電池を容器部側方から常時押圧して固定するバネを形成していることを特徴とする電池用ブリスターケース。   In a battery blister case in which an open container part for storing a plurality of batteries side by side is formed by molding into a transparent thin plate material made of a thermoplastic resin, the dimensions of the container part are formed smaller than the dimensions of the storage battery. In addition, a U-shaped bent portion that is perpendicular to the opening surface of the container portion is formed along at least one side surface of the container portion, and the U-shaped bent portion serves as a storage battery in the container portion. A blister case for a battery characterized by forming a spring that is always pressed and fixed from the side of the container. 請求項１において、上記容器部の外周囲を取り囲んでフランジ状の周縁部が形成され、その周縁部が台紙に貼着固定されることにより上記容器部の開口面が閉塞されていることを特徴とする電池用ブリスターケース。   In Claim 1, The flange-shaped peripheral part is formed surrounding the outer periphery of the said container part, The opening surface of the said container part is obstruct | occluded by sticking and fixing the peripheral part to a base_sheet | mounting_paper. A blister case for batteries. 請求項１または２において、上記Ｕ字状屈曲部の片側面が上記容器部の側壁部を形成していることを特徴とする電池用ブリスターケース。   The battery blister case according to claim 1 or 2, wherein one side surface of the U-shaped bent portion forms a side wall portion of the container portion. 請求項１〜３のいずれかにおいて、上記容器部の収納空間が略矩形状に形成されるとともに、その容器部の４方向の側面にそれぞれ上記Ｕ字状屈曲部が形成されていることを特徴とする電池用ブリスターケース。   4. The storage space of the container part according to claim 1, wherein the container part is formed in a substantially rectangular shape, and the U-shaped bent part is formed on each side surface in the four directions of the container part. A blister case for batteries.
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