JP3630959B2

JP3630959B2 - Battery cover structure

Info

Publication number: JP3630959B2
Application number: JP33648797A
Authority: JP
Inventors: 崇西野
Original assignee: Toa Corp
Current assignee: Toa Corp
Priority date: 1997-11-19
Filing date: 1997-11-19
Publication date: 2005-03-23
Anticipated expiration: 2017-11-19
Also published as: JPH11154496A

Description

【０００１】
【発明の属する技術分野】
本発明は、略円筒状の電池収納部に電池を収納する機器における電池蓋構造に関するものである。
【０００２】
【従来の技術】
略円筒状の電池収納部を有し、この中に陽極と陰極とを交互にして複数本の電池を平行に配列させる構成の機器において、従来の電池蓋の構造は、図４に示すような構造となっていた。図４に示す電池蓋構造は、図示を省略しているが、電池収納部に６本の電池が陽極と陰極とを交互にして平行に配置されており、電池の接点部を有する電池蓋が機器に取り付けられることにより、各電池が直列に接続された状態になるようにしたものである。
図４に示すように、取付部材１０は、外周部にネジ挿通孔１２を有する固定用鍔部１４が形成されており、固定用鍔部１４の内周には、固定用鍔部１４よりも上部にＯリング係合用溝１６を有する筒状体１８が形成されている。なお、筒状体１８の内側は雌ネジ構造になっている。電池蓋カバー２０はネジ穴２２を有しており、この電池蓋カバー２０に前記取付部材１０がネジ２４によりねじ止めされ固定される。
【０００３】
電池押え部材２６は、中央部に貫通孔２８を有する円盤形状であり、電池収納部側の面に陽極用端子金具３０及び陰極用端子金具３２を有する電池接点部３４を備えている。３６は、電池収納部材（図示略）に嵌合させて電池押え部材２６の位置を固定するための位置決めガイドである。
この電池押え部材２６を前記取付部材１０に取り付けて電池蓋を完成させる場合、電池収納部材の雄ネジ部（図示略）が筒状体１８の内側の雌ネジにねじ込まれているときでも、電池接点部３４を有する電池押え部材２６と電池収納部材（図示略）との位置関係は固定されていなければならない。したがって、従来の構造では、電池押え部材２６の貫通孔２８内に取付部材１０の筒状体１８を挿入し、ついで、貫通孔２８の径よりもわずかに大きい外径を有するＯリング３８を、筒状体１８のＯリング係合用溝１６に嵌め込んで係合させることにより、電池押え部材２６を取付部材１０に取り付け、電池押え部材２６が筒状体１８の周面に沿って自由に回転できるような構造としていた。なお、Ｏリング３８は、通常は閉じた状態であり、Ｏリング係合用溝１６に係合させる際に、専用の工具を用いてＯリング３８を開きながらＯリング係合用溝１６にはめ込み、工具を放すことによってバネの力で閉じるようにしたものである。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記の図４に示すような従来の電池蓋構造では、Ｏリングを使用するため、電池蓋の組立に専用の工具が必要であったり、組立に熟練が必要とされる等の問題点があった。勿論、機器のメンテナンス等で分解する場合にも工具が必要となり、非常に面倒であった。
また、Ｏリングが別部材となる構成であるので、部品点数が増加することになり、組立や分解が面倒でありコストもかかっていた。
また、Ｏリングを用いて電池蓋を構成する場合は、Ｏリングの取付や取外しに工具を利用しなければならないので、Ｏリング装着位置近傍に工具を差し込んだり操作等するためのスペースが必要となり、電池蓋の口径を小さくするのにも限界がある。したがって、機器の小型化等に対応できなくなるおそれがある。
さらに、従来の電池蓋構造では、電池収納部に収納された電池を電池押え部材で押さえた状態のときに、電池のがたつきがあると、電池押え部材の電池接点部と電池の電極との接点不良を生じることがあった。
【０００５】
本発明は上記の諸点に鑑みなされたもので、本発明の目的は、特別な工具や熟練等を必要とすることなく、簡単に組立や分解を行うことができ、しかも、部品点数が少なくなり、コストも抑えられる、小型化が容易な電池蓋構造を提供することにある。
また、本発明の目的は、電池のがたつきによる接点不良をなくすことができる電池蓋構造を提供することにある。
【０００６】
【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、本発明の電池蓋構造は、略円筒状の電池収納部の内周部に陽極と陰極とを交互にして複数本の電池を平行に配置してなる機器の電池蓋構造において、円周方向に少なくとも３個の係合爪が設けられ、係合爪の外周に固定用部材が設けられた取付部材が電池蓋カバーに固定され、陽極と陰極とが交互に配置された電池の接点部を有する略円盤状の電池押え部材が、前記取付部材の係合爪の周面に沿って自由に回転できるように、電池押え部材の貫通孔の周縁部に設けられた係合用縁部が取付部材の係合爪に取付・取外自在に係合されたことを特徴としている（図１、図２参照）。
上記の本発明の電池蓋構造において、取付部材の係合爪の先端部は、係合爪の根元方向に向かって外側に傾斜した係合突起を有しており、電池押え部材の貫通孔内に取付部材の係合爪を挿入すると自動的に係合突起が係合用縁部に係合し、係合突起を内側に押圧すると係合突起が係合用縁部から外れるように構成することが好ましい（図１、図２参照）。
【０００７】
また、上記の本発明の電池蓋構造において、取付部材の係合爪の内周に、内側に雌ネジ部を有する筒状体が設けられ、この雌ネジ部に電池収納部材に設けられた雄ネジ部がねじ込まれるように構成することができる（図１、図２参照）。なお、電池蓋側に雄ネジ部を設け、電池収納部側に雌ネジ部を設ける構成とすることも勿論可能である。
また、上記の本発明の電池蓋構造において、電池押え部材の電池の接点部外側に、電池を内側に押圧してがたつきによる接点不良をなくすためのガタツキ防止フラップを設けることが好ましい（図１、図２参照）。
また、これらの本発明の電池蓋構造において、取付部材及び電池押え部材を、それぞれ合成樹脂で一体に成形された部材とすることが好ましい。
【０００８】
【発明の実施の形態】
図１〜図３は、本発明の実施の形態による電池蓋構造を示している。なお、本実施の形態では、一例として、図３に示すような電気メガホンにおける電池蓋構造が挙げられているが、本発明の電池蓋構造は、電気メガホンに限定されるものではなく、略円筒状の電池収納部を有し、この中に陽極と陰極とを交互にして複数本の電池を平行に配列させる構成の機器全般に適用できるものである。また、本実施の形態は、電池収納部材に６本の電池が陽極と陰極とを交互にして平行に配置されており、電池の接点部を有する電池蓋が機器に取り付けられることにより、各電池が直列に接続された状態になるようにしたものであるが、本発明の電池蓋構造は、機器によって電池の本数、種類、大きさ等が変わる場合でも、適宜設計変更等して適用することができるものである。
【０００９】
図１に示すように、取付部材４０は、外周部にネジ挿通孔４２を有する固定用鍔部４４が形成されており、固定用鍔部４４の内周には筒状体４６が形成され、筒状体４６の切欠部には、円周方向に３箇所の係合爪４８が設けられている。なお、図１では係合爪４８を３個設けた構成を示しているが、係合爪を４個以上設ける構成とすることも勿論可能である（例えば、図２、図３では係合爪が４個の場合を図示している）。電池蓋カバー５０はネジ穴５２を有しており、この電池蓋カバー５０に前記取付部材４０がネジ５４によりねじ止めされ固定される。電池蓋カバー５０に取付部材４０を取り付ける場合、固定用鍔部４４やネジ５４等を用いる構成とする以外にも、他の固定用部材や固定手段を採用することが可能であり、電池蓋カバーと取付部材とを一体に成形した部材とすることも可能である。取付部材４０の筒状体４６の内周には、内側に雌ネジ部５６を有する筒状体５８が設けられており、この雌ネジ部５６に電池収納部材６０に設けられた雄ネジ部６２がねじ込まれるようになっている。なお、電池蓋側に雄ネジ部を設け、電池収納部側に雌ネジ部を設ける構成とすることも勿論可能である。
【００１０】
電池押え部材６４は、中央部に貫通孔６６を有する略円盤形状であり、電池収納部材６０側の面には、陽極用端子金具及び陰極用端子金具（図示略）を取り付けるための電池接点部６８が設けられている。また、電池押え部材６４には、電池収納部材６０の切欠部７０に嵌合させて電池押え部材６４の位置を固定するための位置決めガイド７２が設けられている。７４は、電池の陽極の位置を合わせるためのガイド突起である。
この電池押え部材６４を前記取付部材４０に取り付けて電池蓋を完成させる場合、電池収納部材６０の雄ネジ部６２が筒状体５８の内側の雌ネジ部５６にねじ込まれているときでも、電池接点部６８を有する電池押え部材６４と電池収納部材６０との位置関係は固定されていなければならない。したがって、本実施形態の構造では、電池押え部材６４の貫通孔６６内に取付部材４０の筒状体４６が挿入されると、係合爪４８の係合突起７６が貫通孔６６の周縁部に設けられた係合用縁部７８に係合し、これにより、電池押え部材６４が取付部材４０に回動可能に取り付けられるようになっており、電池押え部材６４が筒状体４６の外周面に沿って自由に回転できる構成となっている。なお、本実施形態では、係合爪４８の根元部分の外周面より筒状体４６の外周面の方が外側に位置しているので、使用中に、係合爪４８が電池押え部材６４と接触して衝撃又は疲労により破損するのを防止できるようになっている。
【００１１】
また、メンテナンス時などに電池蓋を分解する場合は、電池押え部材６４の位置決めガイド７２を持って、係合爪４８の係合突起７６を内側に押圧しながら係合突起７６を係合用縁部７８から外すようにすれば、電池押え部材６４を取付部材４０から容易に取り外すことができる。なお、本実施形態では、取付部材４０の係合爪４８が、係合爪４８の根元方向（図１、図２では、下方向）に向かって外側に傾斜した係合突起７６を先端部（図１、図２では、上部）に有する可撓性材料からなる構成であり、電池押え部材６４の貫通孔６６内に取付部材４０の筒状体４６が挿入されると、係合用縁部７８が外側に傾斜した係合突起７６を内側に押圧して、係合用縁部７８に係合突起７６が容易に係合する。なお、取付部材４０において、筒状体４６を設けない構成とすることも勿論可能である。また、他の構成の係合部材を採用することも勿論可能である。
【００１２】
つぎに、電池蓋カバー５０に固定された取付部材４０に電池押え部材６４を回動可能に取り付けて組み立てた電池蓋を、電池収納部材６０に取り付ける態様について説明する。
上述したように、電池収納部材６０の雄ネジ部６２が取付部材４０の雌ネジ部５６にねじ込まれて、電池収納部材６０に電池蓋が取り付けられる。この際、電池押え部材６４の位置決めガイド７２を電池収納部材６０の切欠部７０に嵌合させて、取付部材４０及び電池蓋カバー５０だけが電池収納部材６０に対して回転するようにし、電池押え部材６４は電池収納部材６０に対して回転しないようにしている。８０はマイクロホンユニットである。
図１及び図２では省略しているが、電池収納部材６０には電池が収納されており、電池蓋の取付により、電池接点部６８（陽極用端子金具及び陰極用端子金具は図示略）を有する電池押え部材６４で各電池が押さえられることになる。このとき、電池収納部材６０に収納された電池にがたつきがあると、電池の電極と電池接点部６８との接点不良を招くおそれがあるが、本実施形態の構造では、電池押え部材６４の電池接点部６８外側に、先端に行くにつれて径が小さくなる形状のガタツキ防止フラップ８２を設けて、電池を内側に押圧できるような構成としているので、電池のがたつきによる接点不良をなくすことができる。図２において、８４は機器ケース（本体カバー）である。本実施形態では、電池蓋は、電池押え部材６４、取付部材４０及び電池蓋カバー５０で構成され、電池収納部は、電池押え部材６４、電池収納部材６０及び機器ケース８４の電池収納部材６０が挿入される部分で構成される。
【００１３】
本実施形態の電池蓋構造を適用した機器の一例として、図３に示すように、電気メガホンを挙げることができる。８６はスピーカ部である。なお、本実施形態の電池蓋構造は、電気メガホンの電池蓋に限定されるものではなく、筒状の機器全般に適用可能なものである。
以上に説明した本発明の電池蓋構造は、それぞれの部品が合成樹脂等により一体に成形されたものを用いるのが一般的であるが、これに限定されるものではない。
【００１４】
【発明の効果】
本発明は上記のように構成されているので、つぎのような効果を奏する。
（１）電池蓋カバーに固定された取付部材の係合爪に電池押え部材の係合用縁部を係合させて、取付部材を電池押え部材にはめ込むだけで、特別な工具や熟練等を必要とすることなく、簡単に電池蓋を組み立てることができる。また、メンテナンス等で電池蓋を分解する場合でも、係合爪を内側に押圧して係合爪を係合用縁部から外すだけで、取付部材から電池押え部材を取り外すことができ、簡単に電池蓋を分解することができる。この場合、電池押え部材に設けられた突起形状の位置決めガイドを持って係合爪を外すようにすれば、電池押え部材を取付部材から容易に取り外すことができる。
（２）取付部材に設けられた係合爪を用いる構成であり、従来使用していたＯリングは必要ないので、部品点数が減少するとともに、容易に組立や分解を行うことができ、コストもかなり抑えられる。特に、各構成部品を樹脂による成形部品とする場合は、上記の効果が非常に大きい。
（３）従来使用していたＯリングでは、取付や取外しに工具を利用しなければならないので、Ｏリング装着位置近傍に工具を差し込んだり操作等するためのスペースが必要であったが、本発明の電池蓋構造では、このようなスペースが必要ないので、電池蓋の口径を小さく構成することができ、機器の小型化等にも十分に対応することができる。
（４）電池押え部材の電池の接点部外側にガタツキ防止フラップを設ける場合は、電池のがたつきを防止することができ、電池押え部材の電池接点部と電池の電極との接点不良をなくすことができる。
【図面の簡単な説明】
【図１】本発明の実施の形態による電池蓋構造を示す概略構成斜視図である。
【図２】本発明の実施の形態による電池蓋構造を示す部分断面側面図である。
【図３】本発明の実施の形態による電池蓋構造の使用状態の一例を示す側面図である。
【図４】従来の電池蓋構造を示す概略構成斜視図である。
【符号の説明】
１０、４０取付部材
１２、４２ネジ挿通孔
１４、４４固定用鍔部
１６Ｏリング係合用溝
１８、４６、５８筒状体
２０、５０電池蓋カバー
２２、５２ネジ穴
２４、５４ネジ
２６、６４電池押え部材
２８、６６貫通孔
３０陽極用端子金具
３２陰極用端子金具
３４、６８電池接点部
３６、７２位置決めガイド
３８Ｏリング
４８係合爪
５６雌ネジ部
６０電池収納部材
６２雄ネジ部
７０切欠部
７４ガイド突起
７６係合突起
７８係合用縁部
８０マイクロホンユニット
８２ガタツキ防止フラップ
８４機器ケース
８６スピーカ部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery lid structure in a device that stores a battery in a substantially cylindrical battery storage portion.
[0002]
[Prior art]
In a device having a substantially cylindrical battery housing portion, in which a plurality of batteries are arranged in parallel with alternating anodes and cathodes, the structure of a conventional battery lid is as shown in FIG. It was a structure. Although the battery lid structure shown in FIG. 4 is not shown, six batteries are alternately arranged in parallel in the battery housing portion with anodes and cathodes, and a battery lid having a battery contact portion is provided. Each battery is connected in series by being attached to the device.
As shown in FIG. 4, the attachment member 10 is formed with a fixing collar 14 having a screw insertion hole 12 on the outer periphery, and the inner periphery of the fixing collar 14 is more than the fixing collar 14. A cylindrical body 18 having an O-ring engagement groove 16 is formed on the upper portion. The inner side of the cylindrical body 18 has a female screw structure. The battery lid cover 20 has a screw hole 22, and the mounting member 10 is fixed to the battery lid cover 20 by screws 24.
[0003]
The battery pressing member 26 has a disk shape having a through hole 28 in the center, and includes a battery contact portion 34 having an anode terminal fitting 30 and a cathode terminal fitting 32 on the surface of the battery housing portion. Reference numeral 36 denotes a positioning guide that is fitted to a battery housing member (not shown) to fix the position of the battery pressing member 26.
When the battery holding member 26 is attached to the attachment member 10 to complete the battery lid, even when the male screw portion (not shown) of the battery housing member is screwed into the female screw inside the cylindrical body 18, the battery The positional relationship between the battery pressing member 26 having the contact portion 34 and the battery housing member (not shown) must be fixed. Therefore, in the conventional structure, the cylindrical body 18 of the mounting member 10 is inserted into the through hole 28 of the battery holding member 26, and then an O-ring 38 having an outer diameter slightly larger than the diameter of the through hole 28 is provided. By fitting and engaging with the O-ring engaging groove 16 of the cylindrical body 18, the battery pressing member 26 is attached to the mounting member 10, and the battery pressing member 26 freely rotates along the peripheral surface of the cylindrical body 18. The structure was such that it could be done. The O-ring 38 is normally in a closed state. When the O-ring 38 is engaged with the O-ring engaging groove 16, the O-ring 38 is fitted into the O-ring engaging groove 16 while opening the O-ring 38 using a special tool. It is made to close with the force of a spring by releasing.
[0004]
[Problems to be solved by the invention]
However, since the conventional battery lid structure as shown in FIG. 4 uses an O-ring, a dedicated tool is required for assembling the battery lid, and skill is required for assembling. was there. Of course, tools were also required when disassembling for equipment maintenance and the like, which was very troublesome.
In addition, since the O-ring is a separate member, the number of parts increases, making assembly and disassembly troublesome and costly.
In addition, when the battery cover is configured using an O-ring, a tool must be used for attaching and removing the O-ring, so that a space for inserting and operating the tool in the vicinity of the O-ring mounting position is required. There is a limit to reducing the diameter of the battery lid. Therefore, there is a possibility that it becomes impossible to cope with downsizing of the device.
Further, in the conventional battery lid structure, when the battery stored in the battery storage portion is being held by the battery pressing member, if there is a backlash of the battery, the battery contact portion of the battery pressing member, the battery electrode, In some cases, contact failure was caused.
[0005]
The present invention has been made in view of the above points, and the object of the present invention is to allow easy assembly and disassembly without requiring special tools or skill, and to reduce the number of parts. Another object of the present invention is to provide a battery lid structure that can be reduced in cost and easily reduced in size.
Another object of the present invention is to provide a battery lid structure that can eliminate a contact failure due to battery shakiness.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the battery lid structure of the present invention is a device in which a plurality of batteries are arranged in parallel with an anode and a cathode alternately arranged on the inner peripheral part of a substantially cylindrical battery housing part. In the battery lid structure, at least three engagement claws are provided in the circumferential direction, and an attachment member provided with a fixing member on the outer periphery of the engagement claws is fixed to the battery lid cover, and the anode and the cathode are alternately arranged. A substantially disk-shaped battery pressing member having a contact point of the arranged battery is provided at the peripheral edge of the through hole of the battery pressing member so that it can freely rotate along the peripheral surface of the engaging claw of the mounting member. Further, the engaging edge is engaged with the engaging claw of the attaching member so as to be freely attached / detached (see FIGS. 1 and 2).
In the above-described battery lid structure of the present invention, the tip end portion of the engaging claw of the mounting member has an engaging protrusion inclined outward toward the root direction of the engaging claw, and the inside of the through hole of the battery holding member. When the engaging claw of the mounting member is inserted into the engaging protrusion, the engaging protrusion is automatically engaged with the engaging edge, and when the engaging protrusion is pressed inward, the engaging protrusion is detached from the engaging edge. Preferred (see FIGS. 1 and 2).
[0007]
In the battery lid structure of the present invention, a cylindrical body having a female screw portion on the inner side is provided on the inner periphery of the engaging claw of the mounting member, and the male screw portion provided on the battery housing member is provided on the female screw portion. It can comprise so that a screw part may be screwed in (refer FIG. 1, FIG. 2). It is of course possible to provide a male screw part on the battery lid side and a female screw part on the battery housing part side.
In the above-described battery lid structure of the present invention, it is preferable to provide a rattling-preventing flap on the outside of the battery contact portion of the battery holding member to eliminate contact failure due to rattling by pressing the battery inward (see FIG. 1, see FIG.
In these battery lid structures of the present invention, it is preferable that the attachment member and the battery pressing member are members integrally formed of synthetic resin.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show a battery lid structure according to an embodiment of the present invention. In the present embodiment, as an example, a battery lid structure in an electric megaphone as shown in FIG. 3 is mentioned, but the battery lid structure of the present invention is not limited to an electric megaphone, and is substantially cylindrical. The present invention can be applied to all devices having a configuration in which a plurality of batteries are arranged in parallel with alternating anodes and cathodes. Further, according to the present embodiment, six batteries are alternately arranged in parallel in the battery housing member, and anodes and cathodes are arranged in parallel, and a battery lid having a battery contact portion is attached to the device. Are connected in series, but the battery lid structure of the present invention can be applied by appropriately changing the design even when the number, type, size, etc. of the battery changes depending on the device. It is something that can be done.
[0009]
As shown in FIG. 1, the attachment member 40 has a fixing flange 44 having a screw insertion hole 42 on the outer periphery, and a cylindrical body 46 is formed on the inner periphery of the fixing flange 44. Three engaging claws 48 are provided in the circumferential direction in the cutout portion of the cylindrical body 46. 1 shows a configuration in which three engagement claws 48 are provided, it is of course possible to provide a configuration in which four or more engagement claws are provided (for example, in FIG. 2 and FIG. 3, the engagement claws are provided). Is shown in the figure). The battery lid cover 50 has a screw hole 52, and the mounting member 40 is fixed to the battery lid cover 50 by screws 54. When the attachment member 40 is attached to the battery lid cover 50, other fixing members and fixing means can be employed in addition to the configuration using the fixing collar 44, the screw 54, and the like. It is also possible to use a member formed by integrally molding the mounting member and the mounting member. A cylindrical body 58 having an internal thread portion 56 is provided on the inner periphery of the cylindrical body 46 of the mounting member 40, and an external thread portion 62 provided in the battery housing member 60 on the internal thread portion 56. Is to be screwed in. It is of course possible to provide a male screw part on the battery lid side and a female screw part on the battery housing part side.
[0010]
The battery pressing member 64 has a substantially disk shape having a through hole 66 in the center, and a battery contact portion for attaching an anode terminal fitting and a cathode terminal fitting (not shown) to the surface on the battery housing member 60 side. 68 is provided. Further, the battery holding member 64 is provided with a positioning guide 72 for fitting into the notch 70 of the battery housing member 60 and fixing the position of the battery holding member 64. 74 is a guide projection for aligning the position of the anode of the battery.
When the battery holding member 64 is attached to the attachment member 40 to complete the battery lid, even when the male screw portion 62 of the battery housing member 60 is screwed into the female screw portion 56 inside the cylindrical body 58, the battery The positional relationship between the battery pressing member 64 having the contact portion 68 and the battery housing member 60 must be fixed. Therefore, in the structure of the present embodiment, when the cylindrical body 46 of the mounting member 40 is inserted into the through hole 66 of the battery pressing member 64, the engagement protrusion 76 of the engagement claw 48 is formed on the peripheral portion of the through hole 66. The battery holding member 64 is rotatably attached to the mounting member 40 by engaging with the provided engaging edge 78, and the battery holding member 64 is attached to the outer peripheral surface of the cylindrical body 46. It can be rotated freely along. In the present embodiment, since the outer peripheral surface of the cylindrical body 46 is located on the outer side of the outer peripheral surface of the base portion of the engaging claw 48, the engaging claw 48 and the battery holding member 64 are in use during use. It is possible to prevent contact and breakage due to impact or fatigue.
[0011]
When disassembling the battery cover during maintenance or the like, the positioning guide 72 of the battery holding member 64 is held, and the engaging protrusion 76 is engaged with the engaging protrusion 76 while pressing the engaging protrusion 76 of the engaging claw 48 inward. If it is removed from 78, the battery pressing member 64 can be easily detached from the mounting member 40. In the present embodiment, the engaging claw 48 of the attachment member 40 has the engaging protrusion 76 inclined outward in the root direction of the engaging claw 48 (downward in FIGS. 1 and 2) at the tip ( In FIG. 1 and FIG. 2, the structure is made of a flexible material that is provided in the upper part). When the cylindrical body 46 of the mounting member 40 is inserted into the through hole 66 of the battery pressing member 64, the engaging edge 78 Presses the engaging protrusion 76 inclined outward to the inside, and the engaging protrusion 76 is easily engaged with the engaging edge 78. Of course, the mounting member 40 may be configured such that the cylindrical body 46 is not provided. Of course, it is possible to employ engagement members having other configurations.
[0012]
Next, a mode in which the battery lid assembled by attaching the battery pressing member 64 to the attachment member 40 fixed to the battery lid cover 50 so as to be rotatable is attached to the battery housing member 60 will be described.
As described above, the male screw portion 62 of the battery housing member 60 is screwed into the female screw portion 56 of the mounting member 40, and the battery lid is attached to the battery housing member 60. At this time, the positioning guide 72 of the battery holding member 64 is fitted into the notch 70 of the battery housing member 60 so that only the attachment member 40 and the battery lid cover 50 rotate with respect to the battery housing member 60. The member 64 is prevented from rotating with respect to the battery housing member 60. Reference numeral 80 denotes a microphone unit.
Although omitted in FIGS. 1 and 2, the battery is stored in the battery storage member 60, and the battery contact portion 68 (the anode terminal fitting and the cathode terminal fitting are not shown) is attached by attaching the battery lid. Each battery is held by the battery holding member 64 that is provided. At this time, if the battery housed in the battery housing member 60 has a backlash, there is a risk of causing a contact failure between the battery electrode and the battery contact portion 68. However, in the structure of the present embodiment, the battery holding member 64. The battery contact portion 68 is provided with an anti-rattle flap 82 having a diameter that decreases toward the tip, so that the battery can be pressed inward, thereby eliminating contact failure due to battery shakiness. Can do. In FIG. 2, 84 is a device case (main body cover). In the present embodiment, the battery lid is configured by the battery holding member 64, the attachment member 40, and the battery lid cover 50, and the battery housing portion is constituted by the battery holding member 64, the battery housing member 60, and the battery housing member 60 of the device case 84. Consists of inserted parts.
[0013]
As an example of a device to which the battery lid structure of this embodiment is applied, an electric megaphone can be cited as shown in FIG. Reference numeral 86 denotes a speaker unit. In addition, the battery cover structure of this embodiment is not limited to the battery cover of an electric megaphone, but can be applied to all cylindrical devices.
The battery cover structure of the present invention described above is generally used in which the respective parts are integrally formed of synthetic resin or the like, but is not limited thereto.
[0014]
【The invention's effect】
Since this invention is comprised as mentioned above, there exist the following effects.
(1) A special tool or skill is required simply by engaging the engaging edge of the battery retainer member with the engaging claw of the attachment member fixed to the battery lid cover and fitting the attachment member into the battery retainer member. The battery lid can be easily assembled without having to. Even when the battery lid is disassembled for maintenance or the like, the battery holding member can be easily detached from the mounting member by simply pressing the engaging claw inward and removing the engaging claw from the engaging edge. The lid can be disassembled. In this case, the battery holding member can be easily detached from the mounting member by holding the protrusion-shaped positioning guide provided on the battery holding member and removing the engaging claw.
(2) The structure uses an engaging claw provided on the mounting member. Since the O-ring used in the past is not necessary, the number of parts can be reduced, and assembly and disassembly can be easily performed. It can be suppressed considerably. In particular, when each component is a molded part made of a resin, the above effect is very large.
(3) With the O-ring that has been used in the past, a tool must be used for mounting and removal, so a space for inserting and operating the tool in the vicinity of the O-ring mounting position is necessary. In such a battery lid structure, since such a space is not required, the aperture of the battery lid can be made small, and it is possible to sufficiently cope with downsizing of the device.
(4) When a rattling-preventing flap is provided outside the battery contact portion of the battery holding member, it is possible to prevent the battery from rattling and eliminate the contact failure between the battery contact portion of the battery holding member and the battery electrode. be able to.
[Brief description of the drawings]
FIG. 1 is a schematic configuration perspective view showing a battery lid structure according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional side view showing a battery lid structure according to an embodiment of the present invention.
FIG. 3 is a side view showing an example of a usage state of the battery lid structure according to the embodiment of the present invention.
FIG. 4 is a schematic configuration perspective view showing a conventional battery lid structure.
[Explanation of symbols]
10, 40 Mounting member 12, 42 Screw insertion hole 14, 44 Fixing flange 16 O-ring engagement groove 18, 46, 58 Cylindrical body 20, 50 Battery lid cover 22, 52 Screw hole 24, 54 Screw 26, 64 Battery holding member 28, 66 Through hole 30 Anode terminal fitting 32 Cathode terminal fitting 34, 68 Battery contact portion 36, 72 Positioning guide 38 O-ring 48 Engaging claw 56 Female screw portion 60 Battery housing member 62 Male screw portion 70 Notch Part 74 guide protrusion 76 engaging protrusion 78 engaging edge part 80 microphone unit 82 rattling-preventing flap 84 device case 86 speaker part

Claims

略円筒状の電池収納部の内周部に陽極と陰極とを交互にして複数本の電池を平行に配置してなる機器の電池蓋構造において、円周方向に少なくとも３個の係合爪が設けられ、係合爪の外周に固定用部材が設けられた取付部材が電池蓋カバーに固定され、陽極と陰極とが交互に配置された電池の接点部を有する略円盤状の電池押え部材が、前記取付部材の係合爪の周面に沿って自由に回転できるように、電池押え部材の貫通孔の周縁部に設けられた係合用縁部が取付部材の係合爪に取付・取外自在に係合されていることを特徴とする電池蓋構造。In a battery lid structure of a device in which a plurality of batteries are arranged in parallel with alternating anodes and cathodes on the inner peripheral part of a substantially cylindrical battery storage part, at least three engaging claws are provided in the circumferential direction. A substantially disc-shaped battery holding member having a battery contact portion in which an attachment member provided with a fixing member on the outer periphery of the engaging claw is fixed to the battery lid cover and the anode and the cathode are alternately arranged. The engagement edge provided on the peripheral edge of the through hole of the battery pressing member is attached to / detached from the engagement claw of the attachment member so that it can freely rotate along the peripheral surface of the engagement claw of the attachment member. A battery lid structure characterized by being freely engaged.

取付部材の係合爪の先端部は、係合爪の根元方向に向かって外側に傾斜した係合突起を有しており、電池押え部材の貫通孔内に取付部材の係合爪を挿入すると自動的に係合突起が係合用縁部に係合し、係合突起を内側に押圧すると係合突起が係合用縁部から外れるようにした請求項１記載の電池蓋構造。The front end of the engaging claw of the mounting member has an engaging projection inclined outward in the root direction of the engaging claw, and when the engaging claw of the mounting member is inserted into the through hole of the battery pressing member 2. The battery lid structure according to claim 1, wherein the engaging protrusion is automatically engaged with the engaging edge, and the engaging protrusion is detached from the engaging edge when the engaging protrusion is pressed inward.

取付部材の係合爪の内周に、内側に雌ネジ部を有する筒状体が設けられ、この雌ネジ部に電池収納部材に設けられた雄ネジ部がねじ込まれるようにした請求項１又は２記載の電池蓋構造。The cylindrical body which has a female thread part inside is provided in the inner periphery of the engaging claw of a mounting member, The male thread part provided in the battery accommodating member is screwed in this female thread part. 2. The battery lid structure according to 2.

電池押え部材の電池の接点部外側に、電池を内側に押圧してがたつきによる接点不良をなくすためのガタツキ防止フラップが設けられた請求項１、２又は３記載の電池蓋構造。The battery lid structure according to claim 1, 2 or 3, wherein a backlash prevention flap is provided outside the contact portion of the battery of the battery holding member to prevent contact failure due to rattling by pressing the battery inward.

取付部材及び電池押え部材が、それぞれ合成樹脂で一体に成形された部材である請求項１〜４のいずれかに記載の電池蓋構造。The battery lid structure according to any one of claims 1 to 4, wherein the attachment member and the battery pressing member are members integrally formed of synthetic resin.