JP2004103472A

JP2004103472A - Battery housing pack

Info

Publication number: JP2004103472A
Application number: JP2002265904A
Authority: JP
Inventors: Katsutake Tsuchiya; 土屋　勝毅
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2002-09-11
Filing date: 2002-09-11
Publication date: 2004-04-02
Anticipated expiration: 2022-09-11
Also published as: JP4065168B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery housing pack collectively housing a plurality of batteries with excellent molding property, having a housing part stably keeping the batteries without deformation when housing the batteries. <P>SOLUTION: The battery housing pack is composed of a dish-shaped housing case molded so as to have a swelling part for housing batteries, having an opening at one side, and a backing paper adhered to the peripheral part of the opening part of the housing case and sealing the opening. A holding part, extending in the longitudinal direction of the battery from the side surface of the housing part toward inside thereof, deforming and holding the side surface and peripheral surface of the batteries when they are housed, is formed at the side surface of the housing part facing the side surface of the batteries at the position separating the batteries. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は電池収納パックに関し、さらに詳しくは、例えば複数本の円筒型電池の収納後の回転などを防止し、安定に保持できる収納パックに関する。
【０００２】
【従来の技術】
従来、円筒型の物品、例えば円筒型電池を１個または複数個一組として販売するためのパッケージとして、電池収納パックいわゆるブリスタパックが一般的に使用されている。このブリスタパックは、電池を収納する機能に加えて、販売を目的とする陳列、展示などの機能を持たせるために、例えば、合成樹脂製の電池収納用透明収納体と、この透明収納体の収納部に電池を収納した後開口を閉塞するための台紙から構成される。
【０００３】
このブリスタパックは、開封時に収納されている電池が脱落することを防止するために、以下のように個々の電池を保持する電池保持手段が設けられている（例えば、特許文献１参照）。
すなわち、図５に示すように、ブリスタパック１は電池２を収納する凹部３ａが膨出形成された収納部３と、この凹部３ａの周縁部３ｂに接着されてこの凹部３ａの開口を閉塞する台紙４とから構成される。
【０００４】
凹部３ａの開口部近傍には、電池２の長手方向に沿って、内方に突出する電池保持部すなわち突起３ｃが２箇所形成されている。図６はこの突起３ｃ付近の断面を示し、図中上下の突起３ｃの間の距離Ｄ_２が電池２の外径Ｄ_１よりも小さくなっているため、電池２を収納する際は、この突起３ｃを外方に拡開変形させながら電池２を収納部３内に押し込むことになり、収納後は元の位置に復帰した突起３ｃにより電池２が収納部３の凹部３ａの湾曲面に押し付けられて固定される。
【０００５】
【特許文献１】
特開２０００−２８１１２９号公報
【０００６】
【発明が解決しようとする課題】
しかしながら、上記のような構成のブリスタパックにおいては、以下に述べるような問題がある。すなわち、収納部３は前述したように、例えばポリエチレンテレフタレート（ＰＥＴ）などのフィルムを金型を用いて熱成形して製造されるが、その場合、収納部３の凹部３ａに内方に向かって突出する突起３ｃ部分（いわゆるアンダーカット部分）の離型性が悪いため、この収納部３の成型不良が起こりやすい。
【０００７】
さらに、この収納部３は電池の長手方向の変形に弱いため、例えば、複数の電池を一括して収納できるように凹部３ａを作製すると、とくに中央付近のフィルムの変形によりそこに収納されている電池の保持力が低下してしまい、その結果、台紙との接着箇所に浮きが生じたり、電池が回転して、電池表面に印刷された製造者名や電池の種類などが視認できなくなったり、あるいは、外観を著しく損なうという問題が生じる。
【０００８】
本発明は上記の問題を解決し、成型が容易であり、しかも、安定した電池保持力を有する電池収納パックを提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記の目的を達成するために、本発明によれば、一面が開口し、電池を収納する収納部が膨出形成された皿状の収納ケースと、この収納ケースの開口周縁部に貼着されてこの開口部を閉塞する台紙とからなる電池収納パックにおいて、前記電池の端面に対向する前記収納部側面には、電池と電池とを区画する位置に、前記側面から前記収納部の内方に向かい前記電池の長手方向に突出し、前記電池の端面および側周面が当接したときに変形してこれを保持する保持部が形成されているものが提供される。
【００１０】
上記の構成において、前記電池保持部は前記収納ケース内方に膨出する湾曲面を有していることが好ましく、また、前記収納ケースの前記開口周縁部では、前記電池保持部の端部と前記収納部の側面との間に、前記電池収納時に前記収納部側面の変形を防止するための補強部が形成されていることが好ましい。
【００１１】
【発明の実施の形態】
以下、図１〜図４を参照しながら本発明の一実施形態として、円筒型電池収納パックについて説明する。
図１および図２に示すように、電池収納パック１１は、透明な収納ケース１２とこの収納ケース１２の開口を閉塞するための台紙１３とから構成される。収納ケース１２は、電池１４を収納する収納部１２ａと、この収納部１２ａの開口１２ｂの周縁全周に亘って形成されたつば状の接着部１２ｃとから構成される。通常この収納ケース１２は、例えば、ＰＥＴのような熱可塑性樹脂を成型して得ることができる。
【００１２】
図２はこの収納ケース１２を紙面において上下方向に裏返した状態を示したものである。収納ケース１２の収納部１２ａは、仮想線で示したように、複数の電池（ここでは４個）１４を一括して収納可能な皿状に形成されている。収納部１２ａの全体の底面１２ｄは平坦であってもよいが、図１および図２に示すように収納される個々の電池１４の側周面に対応する形状すなわち円弧状の湾曲面１２ｅが連続する、いわば、かまぼこ形状とすることも可能である。その場合には、電池１４の保持力がさらに向上するという点で有利である。
【００１３】
収納部１２の両端面１２ｆにおいて、２個の電池１４を区画する位置すなわち隣接する湾曲面１２ｅの間、ならびに、収納部１２の両端部には、電池１４の半径方向すなわち電池１４の端面１４ａと平行な方向に、収納部１２ａ内に突出する電池保持部１２ｇが形成されている。図２の拡大部からも明らかなように、この電池保持部１２ｇはその中央部分が最も突出するような湾曲面となるように形成されることが好ましい。これは以下のような理由による。
【００１４】
すなわち、収納部１２ａに電池１４を収納した場合、図２の拡大部に示すように、電池保持部１２ｇの湾曲面のうち図中斜線で示した領域Ａに電池１４の端面１４ａおよび側周面１４ｂの一部が当接し、収納ケースと電池の剛性の差により領域Ａが押圧されて変形し、図２の斜線で示したような凹部が形成される。
この変形領域Ａを詳細に説明すると、電池１４の端面１４ａに押圧されて電池１４の長手方向すなわち図中Ｘ方向に変形する領域Ａ_１と、電池１４の側周面１４ｂに押圧されて電池１４の半径方向すなわち図中Ｙ方向に変形する領域Ａ_２とに分かれている。つまり、領域Ａにおいては、電池１４による押圧力がＸ方向とＹ方向とに適度に分散されることになる。
【００１５】
この電池保持作用を図４により具体的に説明する。図４は４箇所の電池保持部１２ｇでに囲まれた領域に電池１４を収納した状態を示し、図中、図１および図２と同一の構成要素には同一の符号を付して示してある。電池１４を収納しない状態では、電池１４の外径Ｅ_１よりも、隣接する電池保持部１２ｇの間の距離Ｅ_２の方が小さく、すなわち、隣接する電池保持部１２ｇ間は電池１４の外径よりも狭幅となっている。したがって、ここに電池１４を収納した際には、電池保持部１２ｇの領域Ａ_２が電池１４の外径方向に変形し、その結果、電池１４が安定に保持される。
【００１６】
さらに、このＡ_２領域がＹ方向に変形することにより、Ａ_１領域がＸ方向に極端に変形して収納ケース１２の側面１２ｆのみに過度な押圧力が加えられることが防止される。その結果、側面１２ｆの開口部端部にこれと連続して一体に形成されている周縁接着部１２ｃが上記側面１２ｆの外方への変形に連動して移動し、台紙１３との接着箇所において台紙１３から浮き上がったりすることが有効に防止されるという効果がある。
【００１７】
つまり、電池保持部１２ｇの領域Ａ_２の変形は、押圧力の分散と電池の保持という２つの機能を併せ持つことになる。
さらに、図２に示すように、この電池保持部１２ｇの端部と収納部１２の開口周縁部１２ｃとの間には補強部すなわちリブ１２が形成されていることが好ましい。このリブ１２ｈは具体的には、図２に斜線で示すように電池保持部１２ｇ端部の湾曲した縁部と収納部１２の側面１２ｆとにより囲繞された面に形成され、このリブ１２ｈにより電池１４を収納した際に、収納ケース１２の側面１２ｆが電池１４の長手方向に変形することを防止できる。
【００１８】
このリブ１２ｈが形成されていない場合には、図３に示すように、収納ケース１２の端面１２ｆの中央付近の領域Ｂの変形量が、端面１２ｆの両端部の領域Ｃの変形量に比べて大きくなる、収納ケース１２の側面１２ｆが中央付近で外方に湾曲して、その結果、電池の保持力が低下し、収納ケース１２内で電池の回転などが生じる場合がある。
【００１９】
上記のような電池収納パック１１により、電池１４を収納する場合には、まず、収納ケース１２の開口１２ａから電池１４を収納部１４に押し込む。図４に示すように、このとき、１個の電池１４に対し、その両端面１４ａがそれぞれ２箇所ずつ合計４箇所が電池保持部１２ｇに当接して、上述したような電池保持部１２ｇの領域Ａ_２の変形により各電池１４が安定に保持される。
【００２０】
このようにして、全ての電池１４を収納ケース１２内に所定の向きとなるように嵌め込んだのち、収納ケース開口周縁の接着部１２を台紙１３の周縁部接着面に接着することにより、収納ケース１２の開口１２ｂを台紙１３により閉塞する。
本発明の電池収納パックは、このように複数個の電池１４を収納した場合に、電池の配置される位置によらず安定な保持力を実現できる。また、収納ケースの形状も従来のようないわゆるアンダーカット部分が形成されていないため、例えば熱成型時の離型性も良好で製造歩留まりも向上する。
【００２１】
【発明の効果】
以上説明したように、本発明の電池収納パックは単純な形状を有し、熱成型時の離型性が良好で製造が容易であり、しかも、電池の収納位置によらず安定な電池保持力を有するため、電池の収納、陳列、展示など各種の用途に非常に有用であり、その工業的価値は極めて大である。
【図面の簡単な説明】
【図１】本発明の電池収納パックの一実施形態を示す分解斜視図である。
【図２】図１の電池収納パックの収納ケースの収納部を説明するための概念的斜視図である。
【図３】電池保持部にリブが形成されていない場合の収納ケースの変形を説明するための概念図である。
【図４】図１の収納ケースに電池を収納した状態を示す概念図である。
【図５】従来の電池収納パックに電池を収納した状態を示す分解斜視図である。
【図６】図５のＶＩ−ＶＩ線に沿う断面図である。
【符号の説明】
１１　電池収納パック
１２　収納ケース
１２ａ　　収納部
１２ｂ　　開口
１２ｃ　　接着部
１２ｅ　　湾曲面
１２ｆ　　収納部側面
１２ｇ　　電池保持部
１２ｈ　　リブ（補強部）
１３　台紙
１４　電池
１４ａ　　電池端面
Ａ　変形領域[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a battery storage pack, and more particularly, to a storage pack that can stably hold a plurality of cylindrical batteries, for example, by preventing rotation after storage.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a battery storage pack, a so-called blister pack, has been generally used as a package for selling cylindrical articles, for example, one or a plurality of cylindrical batteries as a set. This blister pack has, for example, a synthetic resin battery storage transparent housing and a transparent storage It is composed of a backing sheet for closing the opening after storing the battery in the storage section.
[0003]
This blister pack is provided with a battery holding means for holding individual batteries as described below in order to prevent the stored batteries from dropping when opened (for example, see Patent Document 1).
That is, as shown in FIG. 5, the blister pack 1 has a housing portion 3 in which a concave portion 3a for housing the battery 2 is bulged, and is adhered to a peripheral portion 3b of the concave portion 3a to close an opening of the concave portion 3a. And a mount 4.
[0004]
In the vicinity of the opening of the concave portion 3a, two battery holding portions, that is, protrusions 3c are formed to protrude inward along the longitudinal direction of the battery 2. Figure 6 shows a cross-section in the vicinity of the projection 3c, since the distance D ₂ between the projection 3c of the upper and lower in FIG smaller than the outer diameter D ₁ of the battery 2, when housing the battery 2, the projections The battery 2 is pushed into the storage portion 3 while the battery 3 is expanded and deformed outward, and the battery 2 is pressed against the curved surface of the concave portion 3a of the storage portion 3 by the projection 3c which has returned to the original position after storage. Fixed.
[0005]
[Patent Document 1]
JP 2000-281129 A
[Problems to be solved by the invention]
However, the blister pack having the above configuration has the following problems. That is, as described above, the housing portion 3 is manufactured by thermoforming a film of, for example, polyethylene terephthalate (PET) using a mold. In this case, the housing portion 3 is formed into the recess 3a of the housing portion 3 inward. Since the releasability of the protruding projection 3c portion (so-called undercut portion) is poor, molding failure of the housing portion 3 is likely to occur.
[0007]
Further, since the storage portion 3 is weak against deformation in the longitudinal direction of the battery, for example, when the concave portion 3a is formed so as to store a plurality of batteries at a time, the storage portion 3 is stored therein due to deformation of the film particularly near the center. The holding power of the battery is reduced, and as a result, a floating occurs at a bonding portion with the mount, or the battery rotates, and a manufacturer name or a type of the battery printed on the battery surface becomes invisible, Alternatively, there is a problem that the appearance is significantly impaired.
[0008]
An object of the present invention is to solve the above-mentioned problems and to provide a battery storage pack that is easy to mold and has a stable battery holding power.
[0009]
[Means for Solving the Problems]
According to the present invention, in order to achieve the above object, according to the present invention, a dish-shaped storage case in which one side is opened and a storage portion for storing a battery is bulged is attached to an opening peripheral portion of the storage case. In the battery storage pack made of a backing sheet that closes the opening of the lever, the side of the storage part facing the end face of the battery is located at a position for partitioning the battery and the battery, from the side to the inside of the storage part. A battery is provided which protrudes in the longitudinal direction of the battery and has a holding portion which deforms and holds the battery when the end surface and the side peripheral surface of the battery come into contact with each other.
[0010]
In the above configuration, it is preferable that the battery holding portion has a curved surface that bulges inward of the storage case, and further, at an edge of the opening of the storage case, an end of the battery holding portion. It is preferable that a reinforcing portion for preventing deformation of the side surface of the storage unit when storing the battery is formed between the storage unit and the side surface of the storage unit.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a cylindrical battery storage pack will be described as one embodiment of the present invention with reference to FIGS.
As shown in FIGS. 1 and 2, the battery storage pack 11 includes a transparent storage case 12 and a mount 13 for closing an opening of the storage case 12. The storage case 12 includes a storage portion 12a for storing the battery 14, and a brim-shaped bonding portion 12c formed over the entire periphery of the opening 12b of the storage portion 12a. Usually, the storage case 12 can be obtained by molding a thermoplastic resin such as PET, for example.
[0012]
FIG. 2 shows a state in which the storage case 12 is turned upside down on the paper surface. The storage portion 12a of the storage case 12 is formed in a dish shape that can collectively store a plurality of batteries (four in this case) 14 as indicated by a virtual line. The entire bottom surface 12d of the storage portion 12a may be flat, but as shown in FIGS. 1 and 2, a shape corresponding to the side peripheral surface of each of the stored batteries 14, that is, an arc-shaped curved surface 12e is continuous. In other words, it is also possible to have a kamaboko shape. In that case, it is advantageous in that the holding power of the battery 14 is further improved.
[0013]
In both ends 12 f of the storage section 12, a position separating the two batteries 14, that is, between the adjacent curved surfaces 12 e, and both ends of the storage section 12, in the radial direction of the batteries 14, that is, the end faces 14 a of the batteries 14. A battery holding portion 12g protruding into the storage portion 12a is formed in a parallel direction. As is clear from the enlarged portion of FIG. 2, it is preferable that the battery holding portion 12g is formed so that a central portion thereof has a curved surface that protrudes most. This is for the following reasons.
[0014]
That is, when the battery 14 is stored in the storage portion 12a, as shown in the enlarged portion of FIG. 2, the end surface 14a and the side peripheral surface of the battery 14 A part of 14b abuts, the region A is pressed and deformed due to the difference in rigidity between the storage case and the battery, and a concave portion shown by oblique lines in FIG. 2 is formed.
To explain this deformation area A detail, an area A ₁ to be deformed is pressed by the end face 14a of the battery 14 in the longitudinal or in the X direction of the battery 14, is pressed against the side circumferential surface 14b of the battery 14 battery 14 is divided into a region a ₂ to be deformed in the radial direction, that is in the Y direction. That is, in the area A, the pressing force by the battery 14 is appropriately dispersed in the X direction and the Y direction.
[0015]
This battery holding action will be specifically described with reference to FIG. FIG. 4 shows a state in which the battery 14 is housed in a region surrounded by four battery holding portions 12g. In the drawing, the same components as those in FIG. 1 and FIG. is there. In the state of not accommodating the battery 14, than the outer diameter E ₁ of the battery 14, smaller towards the distance E ₂ between adjacent battery holding portion 12g, i.e., between adjacent battery holding unit 12g outer diameter of the battery 14 It is narrower than that. Therefore, here when accommodating the battery 14, the area A ₂ of the battery holding portion 12g is deformed in the outer diameter direction of the battery 14, as a result, the battery 14 is stably maintained.
[0016]
Furthermore, the A ₂ region by deforming the Y direction, A ₁ region excessive pressure only on the side surfaces 12f of the housing case 12 with extremely deformed in the X direction is prevented from being added. As a result, the peripheral edge adhesive portion 12c formed integrally and continuously with the end of the opening of the side surface 12f moves in conjunction with the outward deformation of the side surface 12f, and moves at the bonding portion with the backing sheet 13 There is an effect that floating from the mount 13 is effectively prevented.
[0017]
In other words, deformation of the area A ₂ of the battery holding portion 12g would combine the two functions pressing force distribution and battery holding.
Further, as shown in FIG. 2, it is preferable that a reinforcing portion, that is, a rib 12 is formed between an end portion of the battery holding portion 12g and an opening peripheral portion 12c of the storage portion 12. Specifically, the rib 12h is formed on a surface surrounded by a curved edge portion of the end of the battery holding portion 12g and a side surface 12f of the storage portion 12 as shown by hatching in FIG. When the storage case 14 is stored, the side surface 12 f of the storage case 12 can be prevented from being deformed in the longitudinal direction of the battery 14.
[0018]
When the rib 12h is not formed, as shown in FIG. 3, the deformation amount of the region B near the center of the end surface 12f of the storage case 12 is smaller than the deformation amount of the region C at both ends of the end surface 12f. The side surface 12f of the storage case 12 becomes larger and curls outward in the vicinity of the center. As a result, the battery holding force is reduced, and the battery may rotate in the storage case 12.
[0019]
When the battery 14 is stored in the battery storage pack 11 as described above, first, the battery 14 is pushed into the storage unit 14 through the opening 12 a of the storage case 12. As shown in FIG. 4, at this time, for each battery 14, two end faces 14 a each of which is in contact with the battery holding portion 12 g at a total of two locations, and the area of the battery holding portion 12 g as described above. each cell 14 is held stably by the deformation of the a _2.
[0020]
In this manner, after all the batteries 14 are fitted into the storage case 12 so as to be in a predetermined direction, the bonding portion 12 at the periphery of the storage case opening is bonded to the peripheral surface bonding surface of the mount 13 to store the battery. The opening 12 b of the case 12 is closed by the mount 13.
The battery storage pack of the present invention can realize a stable holding force regardless of the position where the batteries are arranged when the plurality of batteries 14 are stored in this manner. Further, since the shape of the storage case does not have a so-called undercut portion as in the related art, for example, the releasability at the time of thermoforming is good and the production yield is improved.
[0021]
【The invention's effect】
As described above, the battery storage pack of the present invention has a simple shape, has good releasability during thermoforming, is easy to manufacture, and has a stable battery holding force regardless of the battery storage position. Therefore, it is very useful for various uses such as storage, display and display of batteries, and its industrial value is extremely large.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing one embodiment of a battery storage pack of the present invention.
FIG. 2 is a conceptual perspective view for explaining a storage portion of a storage case of the battery storage pack of FIG.
FIG. 3 is a conceptual diagram for explaining deformation of a storage case when a rib is not formed in a battery holding unit.
FIG. 4 is a conceptual diagram showing a state where a battery is stored in the storage case of FIG.
FIG. 5 is an exploded perspective view showing a state where batteries are stored in a conventional battery storage pack.
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;
[Explanation of symbols]
11 Battery Storage Pack 12 Storage Case 12a Storage Part 12b Opening 12c Adhesive Part 12e Curved Surface 12f Storage Part Side 12g Battery Holder 12h Rib (Reinforcing Part)
13 Mount 14 Battery 14a Battery end face A Deformation area

Claims

In a battery storage pack including a dish-shaped storage case in which one side is opened and a storage portion for storing a battery is formed to bulge, and a backing sheet adhered to an opening peripheral portion of the storage case and closing the opening. The side of the housing facing the end face of the battery, at a position separating the battery and the battery, protrudes inward of the housing from the side in the longitudinal direction of the battery, and the end face and side of the battery. A battery storage pack, wherein a holding portion is formed to be deformed when the peripheral surface comes into contact and to hold the deformed surface.

The battery storage pack according to claim 1, wherein the battery holding portion has a curved surface bulging inward of the storage case.

A reinforcing portion is formed at an edge of the opening of the storage case between an end of the battery holding portion and a side surface of the storage portion to prevent deformation of the storage portion side surface when the battery is stored. The battery storage pack according to claim 1.