JP3964626B2

JP3964626B2 - Storage battery terminal structure

Info

Publication number: JP3964626B2
Application number: JP2001045093A
Authority: JP
Inventors: 修一矢吹; 敬太郎和田; 憲二中野; 一郎佐野
Original assignee: Furukawa Battery Co Ltd
Current assignee: Furukawa Battery Co Ltd
Priority date: 2001-02-21
Filing date: 2001-02-21
Publication date: 2007-08-22
Anticipated expiration: 2021-02-21
Also published as: JP2002246011A

Description

【０００１】
【発明の属する技術分野】
本発明は、二輪車用密閉鉛蓄電池などに使用される蓄電池の端子構造に関する。
【０００２】
【従来の技術】
従来の蓄電池の端子構造は、特開平７−３２０７１８号公報、特開平９−２１３３０２号公報などで公知である。前者には、蓋の隅角部に形成した略直方形の切欠部に、一端部を極柱から引き出された導出板部を下向きに逆Ｌ字状に折り曲げ、該切欠部の底面から突出せしめた端子支持体の天面と前側面とにそのＬ字状導出板部の水平板部と垂直板部とを添着し、該天面と該前側面に形成したナット挿通溝に対応する位置にナット挿通孔を有し、該垂直板部の下端を切欠部の底面に設けた凹陥部に挿入し、該垂直板部のナット挿通孔の１側面にＬ字状の切込みを設けると共にその側縁部を内側に折り曲げ、ナット挿通溝の上縁に係止するストッパとし、これにより板端子の下端が該凹陥部から抜け出ないようにし、板端子が上方に動かないようにすると共にボルト締めされた時の変形を防止するようにした鉛蓄電池の端子構造に係る発明が開示している。
後者には、蓋の隅角部に形成された略直方形の切欠部に、一端部を極柱から引き出された導出板部は、その一端部側において下向きにコ字状に折り曲げてその上面に凹部空間を設けると共に、その外端部側を上向きにコ字状に折り曲げてそのコ字状屈曲板部の裏面空間をナット収容空間とすると共に、該コ字状屈曲板部の水平板部と垂直板部にボルト挿通孔を設け、更に垂直板部の下板部を内側に直角に折り曲げた水平下板部を該切欠部の底面から突出せしめた端子支持体に設けた溝内に嵌合せしめ、該溝の少なくとも１側に設けた止め部を設けて板端子がボルト締めする際に加えられるトルクにより容易に変形することがないようにした鉛蓄電池の端子構造に係る発明が開示されている。
【０００３】
【発明が解決しようとする課題】
前者の発明は、板端子の垂直板に設けたボルト挿通孔の１側面のＬ字状の切込みを設け、その垂直板の１側縁を折り曲げてナット挿通溝の上縁に係止せしめたストッパとしたので、該ボルト挿通孔が有する位置における垂直板の幅が小さくなると共に該板部に流れる電流の抵抗を増大するので、該ナット挿通孔にボルトナットの締付けにより連結される外部リード線へ取り出される電流が減少する不都合をもたらす。一方、そのストッパは、ナット挿通溝の上縁のみと係合するので、板端子の上下動を確実に防止することができない。
これに加え、該板端子の垂直板部の下端を切欠き部の凹陥部に挿入すると共にストッパを蓋側に設けたナット挿通溝の上縁に係止させるには、そのストッパと該蓋側のナット挿通溝との位置関係が常に一定であることを要するが、大量生産において、必ずしも一定せず、互いに位置ずれを生じ、ストッパが必ずしも該ナット挿通孔の溝の上縁に適格に係止しないで板端子を蓋に組み付けることができない不都合をもたらし製造ロスを生ずることがある。
後者の発明は、板端子の垂直板部の水平下板部を端子支持体の溝に嵌合せしめたにすぎないので、ボルト挿通孔にボルト挿通し、締め付ける時に受ける極めて大きいトルクにより、その垂直板部の水平下板部が溝から離脱するおそれがある。
【０００４】
【課題を解決するための手段】
本発明は上記従来の不都合を解消し、簡単且つ確実に蓋に安定強固に取り付けられ、製造容易で且つ製造ロスなく而もボルト締め時に生ずるトルクによる板端子のねじれなどの変形を確実に防止すると共に、外部に取り出し得る電流を増大し得るようにした蓄電池の導出端子構造を提供するもので、一端板部は蓄電池の極柱に接続され、その極柱から蓄電池の蓋に形成した略直方形の切欠部に導出される導出板部は、水平板部と該水平板部から下向きに垂直に折り曲げられた垂直板部から成るＬ字状導出板部に形成されると共に該水平板部と該垂直板部とに夫々ボルト挿通孔が設けられ、且つ該水平板部と該垂直板部の夫々の裏面にナット収容空間を存せしめて成る板端子を、該蓋の該切欠部の底面に取り付けて成る蓄電池の端子構造において、該板端子を、該垂直板部の下板部の両側縁にギザ歯を刻成して板端子に構成し、該板端子の該下板部を該切欠部の底面に設けた嵌合孔に圧入し、その両側縁のギザ歯を該嵌合孔の対向壁面に係止せしめたことを特徴とする。
更に本発明は、更に機械的強度を増大し、且つ極めて安定堅牢な蓄電池の端子構造を提供するもので、一端板部は蓄電池の極柱に接続され、その極柱から蓄電池の蓋に形成した略直方形の切欠部に導出される導出板部は、水平板部と該水平板部から下向きに垂直に折り曲げられた垂直板部から成るＬ字状導出板部に形成されると共に該水平板部と該垂直板部とに夫々ボルト挿通孔が設けられ、且つ該水平板部と該垂直板部の夫々の裏面にナット収容空間を存せしめて成る板端子を、該蓋の該切欠部の底面に取り付けて成る蓄電池の端子構造において、該板端子を、該垂直板部の下板部の両側から後方にＬ字状に折り曲げられた左右の折り曲げ板部を配設すると共に、その左右の折り曲げ板部の後端縁にギザ歯を刻成する一方、該水平板部の後部を下向きに垂直に折り曲げて該垂直板部の後方に対向して形成した垂直板部の下板部の両側から前方にＬ字状に折り曲げられた左右の折り曲げ板部を配設すると共にその左右の折り曲げ板部の前端縁にギザ歯を刻成して成る板端子に構成し、該板端子を、その前側の垂直板部の左右の折り曲げ板部とその後側の垂直板部の左右の折り曲げ板部とを、該蓋の該切欠部の底面に配設した前側の左右の嵌合孔と後側の左右の嵌合孔とに夫々圧入し、その前側の左右のギザ歯及び後側の左右のギザ歯をその夫々の嵌合孔の対向壁内面に係止せしめたことを特徴とする。
更に本発明は、上記の発明において、ボルト締め作業を容易且つ安定良好になし得るようにした蓄電池の端子構造を提供するもので、該板端子の該垂直板部のボルト挿通孔の下方において該垂直板部の一部を内側へ折り曲げてナット受け兼回り止め板部を形成したことを特徴とする。
【０００５】
【発明の実施の形態】
次に、本発明の実施の形態を添付図面に基づいて詳述する。
図１乃至図５は、本発明の実施の１例を示す。その実施例において、蓄電池本体として、例えば、二輪車用密閉鉛蓄電池本体の正，負極極柱の上端部に接続された板端子１を取り付けた本発明の端子構造をａ１，ａ１に具備せしめたものである。即ち、該鉛蓄電池本体Ａは、常法により、内部に直列接続されたセルを収容した電槽Ｂの上面に方形箱型の蓋Ｃをヒートシールなどで気密に結着して成る。該蓋Ｃは、蓄電池本体Ａの１側の左右の隅角部Ｃ１，Ｃ１に形成した略直方形の切欠部Ｄ，Ｄに隣接した位置に、予め夫々の鉛ブッシングＥを鋳込み成形されたもので、その各鉛ブッシングＥの極柱挿通孔に、常法により、電槽Ｂの左右のセル室内に収容されたセルＦの正，負極端子用ストラップＧから直立した正，負極極柱Ｈを挿通され、その各極柱Ｈの上端部を蓋Ｃの外部に突出せしめ、外周の鉛ブッシングＥとバーナーなどにより溶接され夫々の正，負極極柱端子を形成せしめるが、この溶接作業に当たり、本発明の板端子１をその一端板部１ａを各該鉛ブッシングＥに溶接し、その切欠部Ｄ側へ導出せしめ、その導出板部１ｂを以下に詳述するように、切欠部Ｄの底面ｄ１に取り付け、蓄電池本体Ａの１側左右の隅角部Ｃ１，Ｃ１に本発明の正，負極の端子構造ａ１，ａ１を具備した鉛蓄電池を構成したものである。
【０００６】
而して、図１〜図５に示す実施例における本発明の蓄電池の蓋Ｃの左右の隅角部Ｃ１，Ｃ１に夫々配設した左右の端子構造ａ１，ａ１の構成は同じであるので、以下は、その実施例における一方の端子構造ａ１について詳細に説明する。
図１〜図５に示す実施例において、図２は、図１に示す本発明の端子構造ａ１の分解斜視図を示す。本発明の板端子１は、導電性の良好な長矩形の金属板、厚さ２〜２．５ｍｍ程度の肉薄の強靭且つ弾性を有する金属板、例えば黄銅製の金属板から成り、その一端板部１ａには、前記の鉛ブッシングＥに嵌合するに適した円孔２を形成され、その一端板部１ａを該鉛ブッシングＨに嵌合した時、蓋１の切欠部Ｄに導出される導出板部１ｂは、水平板部１ｂ１と該水平板部１ｂ１から下向きに垂直に折り曲げられた垂直板部から成るＬ字状導出板部１ｂに形成すると共に、その水平板部１ｂ１にボルト挿通孔３とその垂直板部１ｂ２にボルト挿通孔４とを設け、該水平板部１ｂ１の裏面と該垂直板部１ｂ２の裏面にナット収容空間５，５を存せしめるようにした。以上の構成は、従来の板端子の構成と変わりないが、本発明の該板端子１は、その該垂直板部１ｂ２の下板部６の両側縁に矢尻や鋸の歯と同じ一方向性を有するぎざぎざの歯（以下ギザ歯と略称する）７，７を刻成し、このギザ歯付きの下板部６を前記蓋Ｃの隅角部Ｃ１に形成した該切欠部Ｄの底面ｄ１に形成した該下板部６の肉厚と幅を有し且つそのギザ歯７，７の全長を没入せしめる深さを有する凹溝状の嵌合孔８にその水平板部１ｂ１の上面をハンマーなどで叩き乍ら圧入せしめ、その両端のギザ歯７，７を対向する嵌合孔８の対向壁内面８ａ，８ｂに係止せしめて本発明の蓄電池の端子構造ａ１を構成した。
尚、図４に明示するように、該支持体突起１１の該ナット受け面１１ｂと該板端子１の該水平板部１ｂ１の裏面との間には、六角ナットＪの対向する辺面を上下に配向して挿入し得るに適したスペースが存するように構成することが好ましい。これにより、ボルト締めの際のナットＪの回り止めは良好に防止できる。
【０００７】
かくして、本発明の端子構造ａ１によれば、該板端子１は、その垂直板部１ｂ２の下板部６は、該蓋Ｃの上面の該嵌合孔８に圧入嵌着されているので、該板端子１に外部からの接続端子をボルト、ナットにより締付け結着する場合に、該板端子１の水平板部１ｂ１に設けたボルト挿通孔３又は該垂直板部１ｂ２に設けたボルト挿通孔４にボルトＩを挿通し、その裏側の対応するナット収容空間５又は５に挿入されたナットＪに螺締するが、このときに生ずる大きなトルクを該板端子１が受けても、該板端子１の水平方向への回動、ねじれ、変形などが確実に防止されると共にその下板部６の両側縁に設けたギザ歯７，７によるその対向壁内面８ａ，８ｂとの係止により上方への抜け止め防止され、かくして板端子１を該蓋Ｃに極めて安定強固に取り付けられた端子構造ａ１が得られ、また、その後も上下振動に対しても安定である。
【０００８】
尚、該板端子１の下端縁の中央には、下端に開放された円弧状などの切欠き開放部９を設けることが好ましい。これにより、該板端子１の下板部６を該嵌合孔８に圧入するとき、その肉薄の板端子１の下板部６が両側縁は該切欠き開放部９側へ極めて僅か寄せられるので圧入作業を容易且つ円滑に行うことができる。
尚また、図示のように、該嵌合孔８の幅は、上端に至るに従い僅かに漸次広幅となるテーパーを有するものに形成し、該板端子１の該垂直板部１ｂ２の下板部６の該嵌合孔８に圧入される板部の幅は、下端に至るに従い漸次狭幅としたものに形成するときは、該板端子１の下板部６の該嵌合孔８への圧入作業が円滑に行われて好ましい。
【０００９】
尚また、板端子１は、所望により、図示のように、その水平板部１ｂ１の後部側で一端板部１ａに隣接する部位を下向きにコ字状に屈曲せしめ、該下向きのコ字状屈曲板部１ｃに形成し、その外面に上面が開放した、自動二輪車の陽極端子を挿入し得るコ字状の凹部空間１０を形成するようにしてもよい。而して、これに対応して、該切欠部Ｄには、底面ｄ１から突出し、前面と上面をナット受け面１１ａ，１１ｂとした支持体突起１１の背面の垂直壁面１１ｃと該垂直壁面１１ｃと対向するその極柱Ｈが存する側の垂直壁面ｄ２との間に該下向きのコ字状屈曲板部１ｃを嵌合挿入し得るに適した幅を有する収容空間１２を存せしめる該収容空間１２に該下向きのコ字状屈曲板部１ｃを嵌合装着し得るようにした。尚、該支持体突起１１の中間部には、上方及び前方から螺挿されるボルトＩの先端部を収容する凹欠部１３を形成することが好ましい。
図面で１４ａ，１４ｂは、板端子１の垂直板部１ｂ２の下板部６を該嵌合孔８に圧入するときに案内する案内壁１５は、極柱Ｈの上端部を囲繞する嵌合溝１６にヒートシールにより施される蓋板を示す。
【００１０】
図６乃至図１０は、先の実施例に代わる本発明の他の実施例の蓄電池の端子構造ａ２を示す。図６〜図１０において、先の実施例と同じ構成部材は、同じ符号を用いて表示した。
図６は、先の実施例の図２に示す端子構造の分解斜視図に対応する蓄電池の端子構造ａ２の分解斜視図を示し、下記の特徴構成を有する。
即ち、板端子１は、その垂直板部１ｂ２の両側縁に、後方にＬ字状に折れ曲がる折り曲げ板部１７ａ，１７ｂを形成すると共に、該水平板部１ｂ１の後部を下向きに垂直に折り曲げて該垂直板部１ｂ２の後方に平行して対面するように位置して追加の垂直板部１ｂ３を設ける。図示の例では、前記の第１実施例で形成したと同じ下向きコ字状屈曲板部１ｃの垂直板部１ｃ１を該追加の垂直板部１ｂ３とし、その両側縁に前方にＬ字状に折れ曲がる折り曲げ板部１７ａ′，１７ｂ′を左右に形成し、前側の垂直板部１ｂ２の下板部６両側から後方へ突出する折り曲げ板部１７ａ，１７ｂの下板部６ａ，６ｂの後端側縁にギザ歯７ａ，７ｂを刻成する一方、後側の垂直板部１ｂ３の下板部６′の両側から前方に突出する左右の折り曲げ板部１７ａ′，１７ｂ′の下板部６ａ′，６ｂ′の前端側縁にギザ歯７ａ′，７ｂ′を刻成して成る板端子１Ａに構成した。一方、蓄電池本体Ａの該蓋Ｃ側には、その切欠部Ｄの底面ｄ１には、図７に明示のように、上記の前側の垂直板部１ｂ２の左右に配設した折り曲げ板部１６ａ，１６ｂの下板部６ａ，６ｂを圧入するに適した凹状の嵌合孔８Ａ，８Ｂを形成する一方、後側の垂直板部１ｂ３の左右に配設した折り曲げ板部１７ａ，１７ｂの下板部６ａ′，６ｂ′を圧入するに適した凹状の嵌合孔８Ａ′，８Ｂ′を形成し、上記の板端子１Ａの前側の垂直板部１ｂ２の左右の折り曲げ板部１６ａ，１６ｂの下板部６ａ，６ｂと後側の垂直板部１ｂ３の左右の折り曲げ板部１７ａ′，１７ｂ′の下板部６ａ′，６ｂ′を夫々対応して前後に位置する前記左右の嵌合孔８Ａ，８Ｂ及び前記左右の嵌合孔８Ａ′，８Ｂ′に圧入し、その夫々のギザ歯７ａ，７ｂ及び７ａ′，７ｂ′をその夫々の嵌合孔８Ａ，８Ｂ及び８Ａ′，８Ｂ′の夫々の対向壁内面８ａ，８ｂ及び８ａ′，８ｂ′に係止させて端子構造ａ２に構成したものである。
【００１１】
かくして、該板端子１Ａは、その前後の垂直板部１ｂ２及び１ｂ３の下部の左右に、即ち、前後左右の四隅にＬ字状の折り曲げ板部１６ａ，１６ｂ，１７ａ，１７ｂを有する全体として四面枠に形成されるので、板端子１の機械的強度が増大し、且つその夫々を対応する嵌合孔８Ａ，８Ｂ，８Ａ′，８Ｂ′に圧入する際に変形することなく円滑良好に所定のハンマーなどによる圧入作業ができるばかりでなく、嵌合孔への圧入後に得られる端子構造ａ２は、その前後左右４個所に配設されたギザ歯７ａ，７ｂ，７ａ′，７ｂ′の夫々の対向壁内面８ａ，８ｂ，８ａ′，８ｂ′との係止による極めて大きな抜け止め防止が得られ、一方、ボルト締めによる極めて大きなトルクに対し四周方向への回動、上下方向の変動、ねじれ、変形などが全くなく、極めて安定堅牢な端子構造ａ２をもたらす。
【００１２】
尚、図示に例示した上記の四面枠状の板端子１Ａを加工するには、黄銅素板から打ち抜くに当たり、前側の垂直板部１ｂ２及び後側の垂直板部１ｂ３の夫々の下板部は、上板部よりも左右に折り曲げ板部を形成する分広幅に打ち抜き、その後その下部両側を折り曲げ加工して折り曲げ板部１６ａ，１６ｂ，１７ａ，１７ｂを形成する。図示の実施例の板端子１Ａでは、後側の垂直板部１ｂ３は、前記の下向きのコ字状屈曲板１ｃを折り曲げ加工する際に、前側の垂直板部１ｂ２より図示のように、垂直方向の長さが短く形成する場合は、予めその下板部の広幅板部の折り曲げ板部１７ａ，１７ｂの長さはその下端がその前側の垂直板部１ｂ２の下端に達する長さに切り抜き加工され、折り曲げ加工して形成したものである。
而して、上記のように加工された板端子１Ａの下部の前後左右の折り曲げ板部１６ａ，１６ｂ，１７ａ，１７ｂの下端部を蓋Ｃに配設した前後左右の嵌合孔に圧入するとき、図７に明示のように、前側の垂直板部１ｂ２の下板部６の左右に折り曲げられない中間部６ｃを同時に圧入するに適した中間嵌合孔８Ｃをその左右の嵌合孔８ａ，８ｂ間と連通せしめて全体としてコ字状に凹嵌合孔とするように設けることが通常である。
尚、このような四面枠状の板端子１Ａは四隅をＬ字状に折り曲げることにより圧入力に対する機械的強度が増大するので、これを打抜き、折り曲げ板に加工するための素板は、これまで使用されて来た２ｍｍ以上の肉厚のものより肉薄の例えば１．５ｍｍ程度のものが使用できるばかりか、１．５ｍｍ程度の肉薄とするときは、Ｌ字状に折り曲げる精度が高まり、一方、鉛ブッシングＥに対するハンダ付け作業も熱容量を減少し得るので、ハンダ作業を迅速に行うことができる。
【００１３】
従来の板端子を上記のように蓋に取り付けた後、使用に当たり、ボルトナットを用い締め付けるに当たり、例えば、横締めを行う場合、六角ナットを板端子裏側のナット収容空間に収容すると共に支持体突起の平坦な上面に載置して受け、その垂直板部のボルト挿通孔に挿入したボルトをその裏側のナットに螺挿し、締め付けて行くが、該支持体突起は、蓋Ｃの成形時に一体成形された合成樹脂製であるため軟弱であるため、ナットが動揺し、ナットの回り止め作用は不充分である。特に、ナットの上方に、該板端子の該水平板部の裏面との間に大きいスペースを有する場合は、ナットは空回りをしたりして迅速且つ容易に所望の締め付けが得られず、またその回動に伴い板端子の浮き上がりを生ずるなどの不都合を生ずる傾向が見られた。
本発明は、かゝる不都合を解消するため、本発明のギザ付き板端子を用い、上記従来の不都合をもたらすナット受け面を有する支持体突起を廃し、板端子自体にナット受けを具備し、ボルト・ナットによる横締めする際、ナットをしっかり受け止め、浮き上がりなく迅速確実に強固な締め付けを行うことができる端子構造を提供するものである。図１１乃至図１４はその実施例を示す。この実施例は、先の第１実施例に示す形式のギザ付き板端子１を基本構成とし、これに該垂直板部１ｂ２の該ボルト挿通孔４の下方において矩形状の上向きのコ字状の切り込み１８を設けると共に、そのコ字状に遊離した板部を内方へ直角に折り曲げ、該垂直板部１ｂ２の中央部から一体に水平に突出した金属板から成るナット受け水平板部１９を具備して成る板端子１Ｂに構成した。尚、この場合、該板端子１Ｂに突出せしめる該水平板部１９の高さ位置は、図１９に明示のように、その上面とその上方の水平板部１ｂ１の裏面との間のスペースは、丁度、挿入すべき六角ナットＪの辺面を上下にして丁度嵌挿するに適したスペースを有する位置に設け、ナット受け兼回り止め水平板部１９として作用するようにすることが好ましい。
尚また、上記の板端子１Ｂを用いるときは、蓋Ｃ側にナット受け支持体突起を設ける必要がなくなるが、図示のように、支持体突起１１に、本発明の前記のナット受け水平板部１９を下面から支承する支承面１１ｂ′を形成することにより、該ナット受け水平板部１９を更にしっかりしたナット受け兼回り止め作用をもたらすようにするようにしてもよい。
而して、該板端子１Ｂの垂直板部１ｂ２の下板部６を蓄電池本体Ａの蓋Ｃ側には、第１実施例と同様に蓋Ｃの隅角部１ｃの切欠部Ｄの底面に形成した凹溝状の嵌合孔８に圧入し、その両側縁のギザ歯７，７をその対向壁内面８ａ，８ｂに係止させ、該垂直板部１ｂ２のボルト、ナット締めにより生ずるトルクによる四周水平方向への変動及び上下方向の変動を確実に防止し、安定堅牢な端子構造ａ３を構成した。かくして、該端子構造ａ３に、外部端子をボルト締めするに当たり、図１３及び図１４に示すように、該水平板部１９の上面と該水平板部１ｃ１の裏面とのスペース内に六角ナットＪをその対向辺面を上下に配向して嵌挿し、この状態で該垂直板部１ｂ２のボルト挿通孔４に挿通したボルトＩを該ナットＪに螺合し締め付けるときは、該水平板部１９は、金属製の該垂直板部１ｂ２の一部を内方折り曲げにより形成した金属板であるので、その上面にナットを動揺なくしっかり受け止め且つボルトの螺締によってもナットＪは浮き上がったり、回動したりすることなく円滑且つ確実に所望の螺締を行うことができる。
一方、垂直板部１ｂ２は、その下板部６を圧入し且つギザ歯７，７により抜け止め防止されているので、第１実施例と同様に板端子１Ｃの水平方向、上下方向の動揺は確実に防止されるので、該水平板部１９を当所の適正位置に不動に確保されるので、極めて大きい締め付け作業を円滑迅速に且つ大きな締め付け力で締め付けることができる。
【００１４】
上記の該板端子１Ｂの垂直板部１ｂ２から内方へ折り曲げ突出して形成されるナット受け兼回り止め板部１９は、上記した第２実施例の本発明の端子構造ａ２の板端子１Ａの前側の垂直板部１ｂ２にも同様に具備せしめることができることは言うまでもない。
【００１５】
従来、ボルト・ナットによる外部端子の螺締に当たり、各別に用意したナットを板端子の裏側のナット収容空間に外部から挿入し、逆Ｌ字状板端子の上面又は前面のボルト挿通孔と整合する位置に配置した状態でボルトを該ボルト挿通孔に挿通してボルト・ナット締めを行うのが一般であるが、かゝるボルト・ナット締め作業は極めて煩わしく、また、ナットが空回りし、締付け作業に時間がかゝり非能率となる不都合をもたらす。従って、極めて容易迅速に高能率且つ強固にボルト・ナット締め作業を行うことができる安定堅牢な端子構造が望まれる。図１５乃至図１７に示す更に他の実施例は、この要望を満足するものである。
即ち、その実施例では、板端子として実施例１に示す形式のギザ歯付きの板端子を基本構成とし、その水平板部１ｂ１の裏面に、そのボルト挿通孔３と整合する位置及び垂直板部１ｂ２の裏面に、そのボルト挿通孔４と整合する位置に夫々一体に設けた螺筒Ｊ′，Ｊ′を具備せしめた板端子１Ｃに構成し、これを、その垂直板部１ｂ２の下板部６を蓋Ｃの切欠部Ｄの底面ｄ１に形成した第１実施例と同じ凹溝状の嵌合孔８に圧入し、その下端部６の両側縁に刻成したギザ歯７，７をその対向壁内面８ａ，８ｂに係止させた安定堅牢な本発明の端子構造ａ４に構成したものである。
更に詳細には、図示のように、従来の別個に用意されるナットＪ，Ｊの使用を廃し、黄銅素板をプレス加工及びネジ切り加工により一体成形された図１６及び図１７に明示のように、水平板部１ｂ１及び垂直板部１ｂ２の各裏面にその夫々のボルト挿通孔３，４と同一軸線上に整合して、適当な長さ突出させた筒体２０を一体成形し、ボルト挿通孔３，４と同径のその円孔内周面にネジ切り加工により螺条Ｊ′ａ，Ｊ′ａを施して螺筒Ｊ′を一体に設けたものである。尚、図示のように、所望により、水平板部１ｂ１のボルト挿通孔３の内周面及び垂直板部１ｂ２のボルト挿通孔４の内周面に夫々螺条３ａ，４ａを施し、ボルト螺挿孔３′，４′に形成し、全体としての螺孔の長さを増大するようにしてもよい。
尚、図示しないが、別手段として、別個に用意した通常のナットＪをその水平板部１ｂ１及び垂直板部１ｂ２の裏面に、ボルト挿通孔３及び４と同一軸線上に半田付けなどで一体に結着するようにしてもよい。かくして、蓋Ｃ側に一体成形により突出せしめたナット受け支持体突起は不要となる。図示の支持体突起１１は、先の実施例と同様に、前側の垂直板部１ｂ２と後側の垂直板部１ｃ１を嵌合支持する支持体突起１１として設けた場合は、該支持体突起１１の上面及び前面に夫々、螺筒Ｊ′，Ｊ′の内端と当接支承する当接面１１ａ″，１１ｂ″に形成するようにしてもよい。
【００１６】
かくして、上記のギザ歯付き板端子１Ｃを、該蓋Ｃに形成した第１実施例と同じ構成の嵌合孔８にその垂直板部１ｂ２の下板部６を圧入すると共に、その両端のギザ歯７，７をその対向壁内面８ａ，８ｂに係止させることにより、締め付けトルクに対し極めて安定堅牢な端子構造ａ４が得られるばかりでなく、予め該板端子１Ｃの水平板部１ｂ１の裏面及び垂直板部１ｂ２の裏面に夫々螺筒Ｊ′，Ｊ′が一体に設けられているので、別個に用意したナットを該板端子１Ｃの裏側の空間に外から挿入、整合する手間が省けるばかりでなく、ボルトＩを板端子１Ｃのその上面の螺筒Ｊ′又はその前面の螺筒Ｊ′に螺挿して締め付けるだけで済むと共に螺筒Ｊ′は勿論、動揺や空回りをすることなく、ボルト締め付け作業を容易且つ迅速にでき、而も強力なボルト締めを可能とし、蓋Ｃ側に別個にナット回り止め部を成形する必要がなく構成簡単且つ安価な端子構造ａ４をもたらす。
【００１７】
上記の板端子へのナットの一体化構成は、上記実施例１に示す板端子１に適用したものを示したが、勿論これに限定されるものでなく、前記の第２実施例その他の所望形状の本発明の各種ギザ歯付き板端子に適用できることは言うまでもない。
【００１８】
図１８及び図１９は、更に他の実施例を示し、該実施例は、ボルト締めに対し一層安定堅牢な端子構造ａ５を提供したものである。この実施例において、前記の図１１〜図１４に示すナット受け兼回り止め板部１９を具備した形式の板端子ａ３を基本構成とし、その垂直板部１ｂ２のボルト挿通孔４の下方の下端に、その板幅の中央から左右に等しい間隔幅を存して下端に達する垂直の切込み線２１，２１を配設し、その切込み線２１，２１間に形成された遊離した板部を内方へ直角に折り曲げて矩形状の水平板部２２を設けて成るギザ歯付き板端子１Ｄに構成する一方、蓄電池本体Ａの蓋Ｃ側に設けた垂直板部１ｂ２の下板部６を圧入するに適した嵌合孔８と該嵌合孔８の中間部から後方に連通して延び、該板端子１Ｄの該水平板部２２を圧入するに適した嵌合孔８Ｄとを形成する。１１ｄ，１１ｅは、該水平板部２２の両側縁を圧接挟持する左右の対向壁を示す。かくして板端子１Ｄは、図１９に示すように、該嵌合孔８に該板端子１Ｄの垂直板部１ｂ２の下板部６を圧入し、その下板部６の両側のギザ歯７，７を対向壁内面８ａ，８ｂに係止させることに加え、該水平板部２２を該嵌合孔８Ｄ内に圧入固着することによりボルト締め時のトルクによる板端子の回転防止を更に強化、増大した更に安定堅牢な端子構造ａ５が得られる。
尚、好ましくは、上記の板端子１Ｄの該水平板部２２の該嵌合孔８Ｄへの圧入に当たり、該嵌合孔８Ｄに硬化性接着剤２３を充填することにより、更に、結着固定強度を高め、ボルト締めによる板端子１Ｄの変動防止を更に増大することができる。
【００１９】
また、外部端子を、ボルト・ナットにより締付けて連結するに当たり、一般に、六角ナットを使用するが、六角ナットの相隣る辺面のなす各角度は６０度であるため、これを、従来、蓋側に設けたナット受け支持体突起の上面に載置したとき、比較的不安定で、これにボルトを螺挿し締め付けるときは、そのボルトの螺挿の回動トルクにより該六角ボルトは回動し浮き上がり勝ちであり、安定且つ良好なボルト締めが得られない嫌いがある。これを改善するため、六角ボルトに変え辺面間のなす角度が９０度の座りのよい安定した四角ボルトを使用することが好ましい。その実施の１例を図２０及び図２１に示す。同図に示すように、例えば、第１実施例に示す形式の板端子１を用い蓄電池本体Ａの蓋Ｃに図１〜図５に示したと同じ端子構造ａ１を構成した後、該板端子１に外部端子（図示しない）を連結するため、ボルト・ナット締めを行うに当たり、第１実施例で使用した六角ナットＪに代え、四角ナットＪ″を使用するときは、そのボルト捻回締めにおいて受けるトルクにより直角関係にある四辺面から成る四角ナットＪ″は、六角ナットに比しトルクに対し安定であり、六角ボルトと異なり、トルクにより回動するおそれは全くない。この場合、該四角ナットＪ″を、図示のように、その対向する上下の辺面Ｊ″１，Ｊ″２を該水平板部１ｂ２の裏面と該支持体１１の平坦な上面１１ｂ間のスペースに嵌挿せしめるときは、四角ナットＪ″の回り止めは更に確実に得られるので、極めて強いボルト締めが安定良好にできる。
【００２０】
本発明において板端子の垂直板部の下板部の両側に設けるギザ歯の数、大きさ、形状などは、板端子の大きさにより異なる。また、ギザ歯は、鋸歯のように、歯を順次左右に僅かに曲げる、いわゆる、あさりをとるように形成し、これにより対向壁内面との係止度を増大し、上方への抜け防止を更に増大せしめることができるようにしてもよい。
【００２１】
更に、発明者等は、次の好ましい事実を多くの試験により知見した。即ち、上記の全ての実施例を含む本発明のギザ歯付き板端子の垂直板部の下板部を、蓋側に設けた嵌合孔に圧入するに当たり、その圧入せしめる板部をヒーターやバーナーなどで加熱処理し、その昇温状態で該嵌合孔に圧入したり、或いは該板部に超音波振動を加え乍ら圧入することにより、このような処理をしないまゝ圧入するに比し、一層安定堅牢な端子構造が得られることが判った。
【００２２】
【発明の効果】
このように本発明によるときは、板端子を、垂直板部の下板部の両端に矢尻や鋸の歯のような指向性を有するギザ歯を配設して成る板端子に構成したので、その下板部を蓄電池本体の蓋の隅角部に形成した切欠部の底面に凹設した嵌合孔に圧入するだけで、ボルトの螺締時に生ずるトルクによる左右への回動変形や上方への抜けが確実に防止され、安定堅牢な端子構造が得られ、従来の板端子のストッパをナット挿通溝に係止して端子構造を組み立て具備する蓄電池を製造する場合に比し、組立作業が容易迅速に端子構造を組み立てることができる共に、製造ロスなく高能率に端子構造を具備した蓄電池が得られると共に、従来の板端子に比し、外部端子への電流の取り出しが増大した端子構造が得られる。
上記の発明において、板端子に設けた前側の垂直板部の下板部の両側と後側の垂直板部の下板部の両側に夫々ギザ歯を配設し、その夫々の下板部を、該切欠部の底面の前後に配設した嵌合孔に圧入し、前後左右の四個所のギザ歯をその対向壁内面に係止させるようにするときは、ボルト締めに対し一層安定堅牢な端子構造をもたらし、更に、前側の垂直板部の両側縁を後方へＬ字状に折り曲げる一方、後側の垂直板部の両側縁を前方へＬ字状に折り曲げて、全体として４つの隅角部がＬ字状に折れ曲がり、全体として四面枠状に形成したので、機械的強度を増大すると共に、更に大きい締め付けトルクに対し安定堅牢な端子構造をもたらす。
更に上記の本発明において、該垂直板部から打ち抜き折り曲げにより内方へ突出せしめたナット受け水平板部を構成するときは、従来の合成樹脂製の端子支持体で受ける場合に見られるナットの動揺、浮き上がりを防止でき、安定且つ一層強固なボルト締めを可能とする一方、蓋側にナット受け面をもつ端子支持体の成形を省略でき構造、組付け簡単で且つ安価に且つ安定堅牢な端子構造を具備した蓄電池をもたらす。
【図面の簡単な説明】
【図１】本発明の実施の１例の正，負極端子構造を具備した蓄電池の斜視図。
【図２】図１の一方の極柱の端子構造の分解斜視図。
【図３】図２の端子構造の組立斜視図。
【図４】図３のＩＶ−ＩＶ線裁断面図。
【図５】図４のＶ−Ｖ線裁断面図。
【図６】本発明の他の実施例における前記第１実施例の図２に類似の蓄電池の一方の極性の端子構造の分解斜視図。
【図７】図６の蓋の隅角部の上面図。
【図８】図６の端子構造の組立斜視図。
【図９】図８のＩＸ−ＶＸ線裁断面図。
【図１０】図８のＸ−Ｘ線裁断面図。
【図１１】本発明の更に他の実施例における前記第１実施例の図２に類似の蓄電池の一方の極性の端子構造の分解斜視図。
【図１２】図１１の端子構造の組立斜視図。
【図１３】図１１のＸＩＩＩ−ＸＩＩＩ線裁断面図。
【図１４】図１３のＸＩＶ−ＸＩＶ線裁断面図。
【図１５】本発明の更に他の実施例における前記第１実施例の図２に類似の蓄電池の一方の極性の端子構造の分解斜視図。
【図１６】図１５の端子構造の組立斜視図。
【図１７】図１６のＸＶＩＩ−ＸＶＩＩ線裁断面図。
【図１８】本発明の更に他の実施例における前記第１実施例の図２に類似の蓄電池の一方の極性の端子構造の分解斜視図。
【図１９】図１８の端子構造の図４に類似の裁断面図。
【図２０】本発明の端子構造の好ましい使用状態を示す図４に類似の端子構造の長さ方向の裁断面図。
【図２１】本発明の端子構造の好ましい使用状態を示す図５に類似の端子構造の幅方向の裁断面図。
【符号の説明】
Ａ蓄電池本体
Ｃ蓋
Ｃ１隅角部
Ｄ切欠部
ｄ１底面
Ｅ鉛ブッシング
Ｈ極柱
Ｉボルト
Ｊナット
１，１Ａ，１Ｂ，１Ｃ，１Ｄ板端子
１ａ板端子の一端板部
１ｂ板端子の導出板部
１ｂ１水平板部
１ｂ２，１ｂ３，１ｃ１垂直板部
ａ１，ａ２，ａ３，ａ４，ａ５端子構造
２，３，４ボルト挿通孔
５ナット収容空間
６，６ａ，６ｂ，６ａ′，６ｂ′ 板端子の下板部
７，７ａ，７ｂ，７ａ′，７ｂ′ ギザ歯
８，８Ａ，８Ｂ，８Ｃ，８Ａ′，８Ｂ′ 嵌合孔
８ａ対向壁内面
８ｂ対向壁内面
１６ａ，１６ｂ折り曲げ板部
１７ａ′，１７ｂ′ 折り曲げ板部
１９ナット受け水平板部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal structure of a storage battery used for a sealed lead storage battery for a motorcycle.
[0002]
[Prior art]
A conventional terminal structure of a storage battery is known in Japanese Patent Laid-Open Nos. 7-320718 and 9-213302. In the former, a lead-out plate part drawn out from the pole column is bent downward in an inverted L shape in a substantially rectangular notch part formed at the corner of the lid, and protruded from the bottom surface of the notch part. The horizontal plate portion and the vertical plate portion of the L-shaped lead-out plate portion are attached to the top surface and the front side surface of the terminal support body, and are located at positions corresponding to the nut insertion grooves formed on the top surface and the front side surface. It has a nut insertion hole, and the lower end of the vertical plate portion is inserted into a recessed portion provided on the bottom surface of the cutout portion, and an L-shaped cut is provided on one side surface of the nut insertion hole of the vertical plate portion and its side edge The stopper is bent to the inside and locked to the upper edge of the nut insertion groove, so that the lower end of the plate terminal does not come out of the recessed portion, the plate terminal does not move upward and is bolted The invention which concerns on the terminal structure of the lead storage battery which prevented the deformation | transformation of time is disclosed.
The latter includes a substantially rectangular cutout formed in the corner of the lid, and a lead-out plate portion with one end pulled out from the pole column is bent downward into a U-shape on the one end side, and its upper surface A concave space is provided on the outer end, and the outer end side is bent upward in a U-shape so that the back surface space of the U-shaped bent plate portion serves as a nut housing space, and the horizontal plate portion of the U-shaped bent plate portion Bolt insertion holes are provided in the vertical plate part, and a horizontal lower plate part that is bent at a right angle inside the vertical plate part is fitted in a groove provided in the terminal support that protrudes from the bottom surface of the notch part. An invention relating to a terminal structure of a lead storage battery is disclosed in which a stop portion provided on at least one side of the groove is provided so that the plate terminal is not easily deformed by torque applied when bolting. ing.
[0003]
[Problems to be solved by the invention]
The former invention is a stopper in which an L-shaped notch is formed on one side of a bolt insertion hole provided in a vertical plate of a plate terminal, and one side edge of the vertical plate is bent and locked to the upper edge of a nut insertion groove Therefore, since the width of the vertical plate at the position of the bolt insertion hole is reduced and the resistance of the current flowing through the plate portion is increased, the external lead wire connected to the nut insertion hole by tightening the bolt and nut This causes the disadvantage that the current drawn is reduced. On the other hand, since the stopper engages only with the upper edge of the nut insertion groove, the vertical movement of the plate terminal cannot be reliably prevented.
In addition, in order to insert the lower end of the vertical plate portion of the plate terminal into the recessed portion of the cutout portion and to lock the stopper to the upper edge of the nut insertion groove provided on the lid side, the stopper and the lid side It is necessary that the positional relationship with the nut insertion groove is always constant, but in mass production, they are not necessarily constant, and they are misaligned with each other, and the stopper is not necessarily locked to the upper edge of the groove of the nut insertion hole. If this is not done, the inconvenience that the plate terminal cannot be assembled to the lid may be caused, resulting in production loss.
In the latter invention, the horizontal lower plate portion of the vertical plate portion of the plate terminal is merely fitted into the groove of the terminal support, so that the vertical torque is increased by the extremely large torque received when the bolt is inserted into the bolt insertion hole and tightened. There is a possibility that the horizontal lower plate portion of the plate portion is detached from the groove.
[0004]
[Means for Solving the Problems]
The present invention eliminates the above-mentioned conventional inconveniences, is easily and securely attached to the lid stably and securely, is easy to manufacture, and reliably prevents deformation such as torsion of the plate terminal due to torque generated during bolting without manufacturing loss. In addition, it provides a lead-out terminal structure of a storage battery that can increase the current that can be taken out to the outside, and the one end plate portion is connected to the pole of the storage battery and is formed from the pole pillar to the lid of the storage battery. The lead-out plate part led out to the notch part of From horizontal plate and horizontal plate Folded vertically downward Consists of vertical plate A bolt insertion hole is provided in each of the horizontal plate portion and the vertical plate portion and formed in the L-shaped lead-out plate portion, And the With horizontal plate The In a terminal structure of a storage battery in which a plate terminal having a nut accommodating space on the back surface of each vertical plate portion is attached to the bottom surface of the notch portion of the lid, the plate terminal is The A plate terminal is formed by engraving serrated teeth on both side edges of the lower plate portion of the vertical plate portion, and the lower plate portion of the plate terminal is press-fitted into a fitting hole provided in the bottom surface of the notch portion. The edge toothed teeth are locked to the opposing wall surface of the fitting hole.
Furthermore, the present invention provides a storage battery terminal structure that further increases mechanical strength and is extremely stable and robust. One end plate portion is connected to a pole column of the storage battery, and is formed from the pole column to the lid of the storage battery. The lead-out plate portion led out to the substantially rectangular notch is From horizontal plate and horizontal plate Folded vertically downward Consists of vertical plate A bolt insertion hole is provided in each of the horizontal plate portion and the vertical plate portion and formed in the L-shaped lead-out plate portion, And the With horizontal plate The In a terminal structure of a storage battery in which a plate terminal having a nut accommodating space on the back surface of each vertical plate portion is attached to the bottom surface of the notch portion of the lid, the plate terminal is The The left and right bent plate portions bent in an L-shape are disposed rearward from both sides of the lower plate portion of the vertical plate portion, and serrated teeth are formed on the rear end edges of the left and right bent plate portions, Left and right bent plate parts bent in an L-shape forward from both sides of the lower plate part of the vertical plate part formed by bending the rear part of the horizontal plate part downward vertically and facing the rear of the vertical plate part are arranged. And a plate terminal formed by engraving serrated teeth on the front edge of the left and right bent plate portions, and the plate terminals are connected to the left and right bent plate portions of the front vertical plate portion and the rear vertical plate. The left and right bent plate portions are press-fitted into the front left and right fitting holes and the rear left and right fitting holes respectively provided on the bottom surface of the notch portion of the lid, and the front left and right jagged edges are respectively pressed. The teeth and the right and left serrated teeth on the rear side are locked to the inner surfaces of the opposing walls of the respective fitting holes.
Furthermore, the present invention provides a terminal structure for a storage battery in which the bolting operation can be easily and stably performed in the above-described invention, and the bolt terminal is provided below the bolt insertion hole of the vertical plate portion of the plate terminal. A part of the vertical plate portion is bent inward to form a nut receiving / rotating plate portion.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 5 show an example of the embodiment of the present invention. In that embodiment, as the storage battery main body, for example, a1 and a1 are provided with the terminal structure of the present invention in which the plate terminal 1 connected to the upper ends of the positive and negative electrode poles of a sealed lead-acid battery main body for motorcycles is attached. It is. That is, the lead storage battery main body A is formed by airtightly bonding a rectangular box-shaped lid C to the upper surface of the battery case B containing the cells connected in series therein by heat sealing or the like. The lid C is formed by casting respective lead bushings E in advance at positions adjacent to the substantially rectangular cutouts D, D formed in the left and right corners C1, C1 on one side of the storage battery main body A. The positive and negative pole poles H standing upright from the positive and negative terminal straps G of the cell F accommodated in the left and right cell chambers of the battery case B are inserted into the lead pole insertion holes of the lead bushings E in a conventional manner. The upper end of each pole pole H protrudes outside the lid C and is welded with a lead bushing E on the outer periphery and a burner to form the respective positive and negative pole pole terminals. The plate terminal 1 of the invention is welded at its one end plate portion 1a to each lead bushing E and led out to the notch portion D side, and the lead-out plate portion 1b is the bottom surface d1 of the notch portion D as described in detail below. To the left and right corners C1, C1 of the storage battery body A Positive invention, which is constituted of the lead-acid battery provided with the terminal structure a1, a1 of the negative electrode.
[0006]
Thus, the left and right terminal structures a1 and a1 respectively disposed at the left and right corners C1 and C1 of the lid C of the storage battery of the present invention in the embodiment shown in FIGS. Hereinafter, one terminal structure a1 in the embodiment will be described in detail.
In the embodiment shown in FIGS. 1 to 5, FIG. 2 shows an exploded perspective view of the terminal structure a1 of the present invention shown in FIG. The plate terminal 1 of the present invention is a long rectangular metal plate having good conductivity, a thin, strong and elastic metal plate having a thickness of about 2 to 2.5 mm, for example, a metal plate made of brass, and one end plate thereof. The portion 1a is formed with a circular hole 2 suitable for fitting to the lead bushing E, and when the one end plate portion 1a is fitted to the lead bushing H, it is led to the notch portion D of the lid 1. The lead-out plate portion 1b is From the horizontal plate portion 1b1 and the horizontal plate portion 1b1 Folded vertically downward Consists of vertical plate L shape Guidance Outboard part 1b Formed into At the same time, a bolt insertion hole 3 is provided in the horizontal plate portion 1b1 and a bolt insertion hole 4 is provided in the vertical plate portion 1b2. The nut accommodating spaces 5, 5 are provided on the back surface of the horizontal plate portion 1b1 and the back surface of the vertical plate portion 1b2. It was made to survive. The above configuration is the same as the configuration of the conventional plate terminal, but the plate terminal 1 of the present invention has the same unidirectionality as arrowheads and saw teeth on both side edges of the lower plate portion 6 of the vertical plate portion 1b2. Indented teeth (hereinafter abbreviated as jagged teeth) 7 and 7 are formed on the bottom surface d1 of the notch D formed on the corner C1 of the lid C. The upper surface of the horizontal plate portion 1b1 is inserted into a recessed groove-like fitting hole 8 having the thickness and width of the formed lower plate portion 6 and deep enough to immerse the entire length of the serrated teeth 7, 7. The terminal structure a1 of the storage battery according to the present invention was constructed by press-fitting and engaging the toothed teeth 7 and 7 at both ends with the opposing wall inner surfaces 8a and 8b of the fitting holes 8 facing each other.
As clearly shown in FIG. 4, the opposing side surface of the hexagon nut J is vertically moved between the nut receiving surface 11 b of the support protrusion 11 and the back surface of the horizontal plate portion 1 b 1 of the plate terminal 1. It is preferable that the space is suitable for being inserted in an oriented manner. Thereby, the rotation prevention of the nut J at the time of bolting can be prevented favorably.
[0007]
Thus, according to the terminal structure a1 of the present invention, the lower terminal portion 6 of the vertical terminal portion 1b2 of the plate terminal 1 is press-fitted into the fitting hole 8 on the upper surface of the lid C. When the connection terminal from the outside is fastened to the plate terminal 1 with bolts and nuts, the bolt insertion hole 3 provided in the horizontal plate portion 1b1 of the plate terminal 1 or the bolt insertion hole provided in the vertical plate portion 1b2 4 is inserted into a bolt I and screwed into a nut J inserted into a corresponding nut receiving space 5 or 5 on the back side of the bolt I. Even if the plate terminal 1 receives a large torque generated at this time, the plate terminal 1 1 is reliably prevented from rotating, twisting, deforming, etc. in the horizontal direction and being locked with the opposing wall inner surfaces 8a, 8b by the serrated teeth 7, 7 provided on both side edges of the lower plate portion 6. Is prevented from coming off and thus the plate terminal 1 is extremely stable and strong to the lid C. Are terminal structure a1 attached is obtained, also a subsequent stable against vertical vibrations.
[0008]
In the center of the lower edge of the plate terminal 1, it is preferable to provide a notch opening 9 such as an arc shape opened at the lower end. As a result, when the lower plate portion 6 of the plate terminal 1 is press-fitted into the fitting hole 8, both sides of the lower plate portion 6 of the thin plate terminal 1 are very slightly moved toward the notch opening portion 9. Therefore, the press-fitting work can be performed easily and smoothly.
In addition, as shown in the figure, the width of the fitting hole 8 is formed to have a taper that gradually becomes wider toward the upper end, and the lower plate portion 6 of the vertical plate portion 1b2 of the plate terminal 1 is formed. When the width of the plate portion to be press-fitted into the fitting hole 8 is gradually narrowed toward the lower end, the press-fitting of the lower plate portion 6 of the plate terminal 1 into the fitting hole 8 is performed. It is preferable that the operation is performed smoothly.
[0009]
In addition, if desired, the plate terminal 1 is bent at the rear side of the horizontal plate portion 1b1 adjacent to the one end plate portion 1a downwardly in a U-shape, as shown in the figure, and the downward U-shaped bent portion. You may make it form the U-shaped recessed space 10 which can be inserted in the anode terminal of the motorcycle which formed in the board part 1c and opened the upper surface to the outer surface. Accordingly, in correspondence with this, the notch D protrudes from the bottom surface d1, and the vertical wall surface 11c and the vertical wall surface 11c on the back surface of the support projection 11 having the front and top surfaces of the nut receiving surfaces 11a and 11b. The accommodation space 12 has an accommodation space 12 having a width suitable for fitting and inserting the downward U-shaped bent plate portion 1c between the opposite vertical wall surface d2 where the pole pole H is present. The downward U-shaped bent plate portion 1c can be fitted and mounted. In addition, it is preferable to form a recess 13 that accommodates the tip of the bolt I that is screwed from above and in the front, at the intermediate portion of the support protrusion 11.
In the drawings, reference numerals 14a and 14b denote fitting walls 15 for guiding the lower plate portion 6 of the vertical plate portion 1b2 of the plate terminal 1 when the lower plate portion 6 is press-fitted into the fitting hole 8; 16 shows a cover plate applied by heat sealing.
[0010]
6 to 10 show a terminal structure a2 of a storage battery according to another embodiment of the present invention that replaces the previous embodiment. 6 to 10, the same constituent members as those in the previous embodiment are indicated using the same reference numerals.
FIG. 6 is an exploded perspective view of the terminal structure a2 of the storage battery corresponding to the exploded perspective view of the terminal structure shown in FIG. 2 of the previous embodiment, and has the following characteristic configuration.
That is, the plate terminal 1 is formed with bent plate portions 17a and 17b which are bent in an L-shape on the both side edges of the vertical plate portion 1b2, and the rear portion of the horizontal plate portion 1b1 is bent downward vertically. An additional vertical plate portion 1b3 is provided so as to face and face the rear of the vertical plate portion 1b2. In the illustrated example, the vertical plate portion 1c1 of the same downward U-shaped bent plate portion 1c formed in the first embodiment is used as the additional vertical plate portion 1b3, and is bent forward in an L shape at both side edges thereof. Folding plate portions 17a 'and 17b' are formed on the left and right sides, and on the rear end side edges of the lower plate portions 6a and 6b of the bent plate portions 17a and 17b protruding rearward from both sides of the lower plate portion 6 of the front vertical plate portion 1b2. The left and right bent plate portions 17a 'and 17b' which protrude forward from both sides of the lower plate portion 6 'of the rear vertical plate portion 1b3 while engraving the serrated teeth 7a and 7b. The plate terminal 1A is formed by engraving serrated teeth 7a 'and 7b' at the front end side edge. On the other hand, on the lid C side of the storage battery main body A, as shown in FIG. 7, the bent plate portions 16a disposed on the left and right of the front vertical plate portion 1b2, The lower plate portions of the bent plate portions 17a and 17b disposed on the left and right sides of the rear vertical plate portion 1b3, while forming the concave fitting holes 8A and 8B suitable for press-fitting the lower plate portions 6a and 6b of the 16b. Recessed fitting holes 8A 'and 8B' suitable for press-fitting 6a 'and 6b' are formed, and the lower plate portions of the left and right bent plate portions 16a and 16b of the vertical plate portion 1b2 on the front side of the plate terminal 1A. 6a, 6b and the left and right fitting holes 8A, 8B positioned at the front and back corresponding to the left and right bent plate portions 17a ', 17b' of the rear vertical plate portion 1b3, respectively. The right and left fitting holes 8A 'and 8B' are press-fitted and their respective jagged teeth 7a, 7b and 7a , 'Fitting hole 8A of the respective, 8B and 8A' 7b, 8B 'respective opposing wall inner surface 8a of, 8b and 8a', and to engage with the 8b 'is obtained by constituting the terminal structure a2.
[0011]
Thus, the plate terminal 1A has a four-sided frame as a whole having L-shaped bent plate portions 16a, 16b, 17a, and 17b at the left and right of the lower portions of the front and rear vertical plate portions 1b2 and 1b3, that is, at the four corners of the front and rear. Therefore, the mechanical strength of the plate terminal 1 is increased, and a predetermined hammer can be smoothly and smoothly formed without being deformed when it is press-fitted into the corresponding fitting holes 8A, 8B, 8A ', 8B'. The terminal structure a2 obtained after press-fitting into the fitting hole is not only the press-fitting work by the above-mentioned, but the opposing walls of the serrated teeth 7a, 7b, 7a ', 7b' arranged at the four positions on the front and rear sides thereof A very large locking prevention is obtained by locking with the inner surfaces 8a, 8b, 8a ', 8b'. On the other hand, rotation in the four-round direction, vertical fluctuation, twisting, deformation, etc., against a very large torque by bolting Is totally Ku, resulting in a very stable and robust terminal structure a2.
[0012]
In order to process the above-described four-frame frame-shaped plate terminal 1A illustrated in the figure, when punching from the brass base plate, the lower plate portions of the front vertical plate portion 1b2 and the rear vertical plate portion 1b3 are respectively The bent plate portions 16a, 16b, 17a, and 17b are formed by punching in a width that forms the bent plate portions on the left and right sides of the upper plate portion, and then bending the lower sides thereof. In the plate terminal 1A of the illustrated embodiment, the rear vertical plate portion 1b3 is formed in the vertical direction as shown in the figure from the front vertical plate portion 1b2 when the downward U-shaped bent plate 1c is bent. When the length of the bent plate portions 17a and 17b of the wide plate portion of the lower plate portion is formed in advance, the lower end of the bent plate portions 17a and 17b is cut into a length that reaches the lower end of the vertical plate portion 1b2 on the front side. It is formed by bending.
Thus, when the lower ends of the front, rear, left and right bent plate portions 16a, 16b, 17a, and 17b of the lower portion of the plate terminal 1A processed as described above are press-fitted into the front and rear, right and left fitting holes provided in the lid C. As shown in FIG. 7, intermediate fitting holes 8C suitable for simultaneously press-fitting the intermediate portion 6c that cannot be bent to the left and right of the lower plate portion 6 of the front vertical plate portion 1b2 are formed as the right and left fitting holes 8a, It is usual to provide a concave fitting hole in a U-shape as a whole by communicating with 8b.
In addition, such a four-sided frame-shaped plate terminal 1A has a mechanical strength against pressure input that is increased by bending the four corners into an L-shape. For example, a thickness of about 1.5 mm, which is thinner than the thickness of 2 mm or more that has been used, can be used, and when the thickness is about 1.5 mm, the accuracy of bending into an L shape increases, Since the soldering work for the lead bushing E can also reduce the heat capacity, the soldering work can be performed quickly.
[0013]
After attaching the conventional plate terminal to the lid as described above, in use, when tightening with bolts and nuts, for example, when performing lateral tightening, the hexagon nut is accommodated in the nut accommodating space on the back side of the plate terminal and the support protrusion The bolt inserted into the bolt insertion hole of the vertical plate portion is screwed into the nut on the back side and tightened, but the support protrusion is integrally formed when the lid C is formed. Since it is made of a synthetic resin and is soft, the nut sways and the nut does not rotate sufficiently. In particular, when there is a large space above the nut and the back surface of the horizontal plate portion of the plate terminal, the nut may go idle and the desired tightening cannot be obtained quickly and easily. There was a tendency to cause inconveniences such as floating of the plate terminal with rotation.
In order to eliminate such inconvenience, the present invention eliminates the support protrusion having the nut receiving surface that causes the above-described conventional inconvenience, using the plate terminal with the serration of the present invention, and includes a nut receiver on the plate terminal itself, It is intended to provide a terminal structure capable of receiving a nut firmly when laterally tightening with bolts and nuts, and quickly and securely tightening without lifting. FIG. 11 to FIG. 14 show the embodiment. This embodiment is based on the plate terminal 1 with the serrations of the type shown in the first embodiment, and has a rectangular upward U-shape below the bolt insertion hole 4 of the vertical plate portion 1b2. A notch 18 is provided, and a plate portion released in a U-shape is bent inward at a right angle, and a nut receiving horizontal plate portion 19 made of a metal plate integrally projecting horizontally from the central portion of the vertical plate portion 1b2 is provided. It was comprised in the board terminal 1B comprised. In this case, as shown in FIG. 19, the height position of the horizontal plate portion 19 protruding from the plate terminal 1B is the space between the upper surface and the rear surface of the horizontal plate portion 1b1 above it. It is preferable that the hexagonal nut J to be inserted is provided with a side face up and down at a position having a space suitable for insertion and acts as a nut receiving / rotating horizontal plate portion 19.
Further, when the plate terminal 1B is used, it is not necessary to provide a nut receiving support protrusion on the lid C side. However, as shown in the drawing, the support protrusion 11 has the nut receiving horizontal plate portion of the present invention. By forming a bearing surface 11b 'that supports 19 from the lower surface, the nut receiving horizontal plate portion 19 may be provided with a more firm nut receiving and non-rotating action.
Thus, the lower plate portion 6 of the vertical plate portion 1b2 of the plate terminal 1B is placed on the lid C side of the storage battery body A on the bottom surface of the cutout portion D of the corner portion 1c of the lid C as in the first embodiment. By press-fitting into the formed recessed groove-like fitting hole 8, the jagged teeth 7, 7 on both side edges are locked to the opposing wall inner surfaces 8 a, 8 b, and the torque generated by tightening the bolts and nuts of the vertical plate portion 1 b 2 A stable and robust terminal structure a <b> 3 was configured by reliably preventing fluctuations in the four-round horizontal direction and vertical fluctuation. Thus, when the external terminal is bolted to the terminal structure a3, as shown in FIGS. 13 and 14, a hexagon nut J is placed in the space between the upper surface of the horizontal plate portion 19 and the rear surface of the horizontal plate portion 1c1. When the opposite side surface is vertically inserted and inserted, and in this state, the bolt I inserted into the bolt insertion hole 4 of the vertical plate portion 1b2 is screwed into the nut J and tightened, the horizontal plate portion 19 is Since it is a metal plate formed by bending a part of the vertical plate portion 1b2 made of metal inwardly, the nut J is lifted or rotated by firmly receiving the nut on its upper surface without shaking and screwing the bolt. Thus, the desired screwing can be performed smoothly and reliably.
On the other hand, since the vertical plate portion 1b2 press-fits the lower plate portion 6 and is prevented from being detached by the serrated teeth 7 and 7, the horizontal and vertical oscillations of the plate terminal 1C are the same as in the first embodiment. Since it is reliably prevented, the horizontal plate portion 19 is secured in an appropriate position in this place, so that an extremely large tightening operation can be tightened smoothly and quickly with a large tightening force.
[0014]
The nut receiving / rotating plate portion 19 formed by bending inwardly protruding from the vertical plate portion 1b2 of the plate terminal 1B is the front side of the plate terminal 1A of the terminal structure a2 of the present invention described above in the second embodiment. It goes without saying that the vertical plate portion 1b2 can be similarly provided.
[0015]
Conventionally, when screwing external terminals with bolts and nuts, nuts prepared separately are inserted into the nut receiving space on the back side of the plate terminal from the outside and aligned with the bolt insertion holes on the top surface or the front surface of the inverted L-shaped plate terminal. The bolts and nuts are generally tightened by inserting the bolts into the bolt insertion holes in the state where they are positioned, but such bolts and nuts are extremely troublesome, and the nuts are idle and tightened. It takes a long time to cause inconvenience. Therefore, there is a demand for a stable and robust terminal structure that can perform bolting and nut tightening operations very easily, quickly, and efficiently. Still another embodiment shown in FIGS. 15 to 17 satisfies this need.
That is, in this embodiment, a plate terminal with a serrated tooth of the type shown in Embodiment 1 is used as the basic configuration, and the position of the vertical plate portion aligned with the bolt insertion hole 3 on the back surface of the horizontal plate portion 1b1. A plate terminal 1C provided with screw cylinders J 'and J' integrally provided at positions aligned with the bolt insertion holes 4 on the back surface of 1b2 is configured as a lower plate portion of the vertical plate portion 1b2. 6 is press-fitted into the concave groove-like fitting hole 8 formed in the bottom surface d1 of the notch D of the lid C, and the serrated teeth 7 are formed on both side edges of the lower end portion 6 thereof. The terminal structure a4 of the present invention is configured to be locked to the opposing wall inner surfaces 8a and 8b.
More specifically, as shown in FIG. 16 and FIG. 17, the conventional use of separately prepared nuts J and J is eliminated, and the brass base plate is integrally formed by pressing and threading. In addition, a cylindrical body 20 that is aligned on the same axis as the respective bolt insertion holes 3 and 4 on the back surfaces of the horizontal plate portion 1b1 and the vertical plate portion 1b2 and protrudes by an appropriate length is integrally formed, and the bolts are inserted. Threads J'a and J'a are formed by threading on the inner peripheral surface of the circular hole having the same diameter as the holes 3 and 4, and the screw tube J 'is integrally provided. As shown in the figure, if desired, screws 3a and 4a are respectively formed on the inner peripheral surface of the bolt insertion hole 3 of the horizontal plate portion 1b1 and the inner peripheral surface of the bolt insertion hole 4 of the vertical plate portion 1b2, and screwed into the bolts. The holes 3 'and 4' may be formed to increase the overall length of the screw holes.
Although not shown, as another means, a separately prepared normal nut J is integrated with the back surface of the horizontal plate portion 1b1 and the vertical plate portion 1b2 by soldering or the like on the same axis as the bolt insertion holes 3 and 4. You may make it bind. Thus, the nut receiving support protrusion protruding from the lid C side by integral molding becomes unnecessary. When the support protrusion 11 shown in the figure is provided as a support protrusion 11 that fits and supports the front vertical plate portion 1b2 and the rear vertical plate portion 1c1, as in the previous embodiment, the support protrusion 11 The upper and front surfaces may be formed on contact surfaces 11a "and 11b" that contact and support the inner ends of the screw tubes J 'and J', respectively.
[0016]
Thus, the lower plate portion 6 of the vertical plate portion 1b2 is press-fitted into the fitting hole 8 having the same configuration as that of the first embodiment formed on the lid C of the plate terminal 1C with the above-mentioned serrated teeth, and the jagged portions at both ends thereof. By locking the teeth 7 and 7 to the opposing wall inner surfaces 8a and 8b, not only a terminal structure a4 that is extremely stable and robust against the tightening torque can be obtained, but also the back surface of the horizontal plate portion 1b1 of the plate terminal 1C and Since the screw tubes J 'and J' are integrally provided on the back surface of the vertical plate portion 1b2, it is possible to save the trouble of inserting and aligning separately prepared nuts into the space on the back side of the plate terminal 1C from the outside. The bolt I is simply screwed into the screw tube J 'on the upper surface of the plate terminal 1C or the screw tube J' on the front surface of the plate terminal 1C and tightened. Work easily and quickly, To allow strong bolting, resulting in the structure simple and inexpensive terminal structure a4 is not necessary to mold the separate nut rotation stopper on the lid C side.
[0017]
Although the integrated structure of the nut to the plate terminal described above is applied to the plate terminal 1 shown in the first embodiment, it is of course not limited to this, and the second embodiment or other desired ones. Needless to say, the present invention can be applied to various kinds of serrated plate terminals of the present invention.
[0018]
18 and 19 show still another embodiment, which provides a terminal structure a5 that is more stable and robust against bolting. In this embodiment, the plate terminal a3 of the type having the nut receiving / rotating plate portion 19 shown in FIGS. 11 to 14 is used as a basic structure, and the lower end of the vertical plate portion 1b2 below the bolt insertion hole 4 is provided. The vertical cut lines 21 and 21 that reach the lower end with a space equal to the left and right from the center of the plate width are disposed, and the free plate portion formed between the cut lines 21 and 21 is inward. It is suitable for press-fitting the lower plate portion 6 of the vertical plate portion 1b2 provided on the lid C side of the storage battery main body A, while being formed into a serrated plate terminal 1D formed by bending a right angle to form a rectangular horizontal plate portion 22. The fitting hole 8 and a fitting hole 8D that extend from the middle part of the fitting hole 8 to the rear and are suitable for press-fitting the horizontal plate part 22 of the plate terminal 1D are formed. Reference numerals 11 d and 11 e denote left and right opposing walls that press-clamp both side edges of the horizontal plate portion 22. Thus, as shown in FIG. 19, the plate terminal 1D press-fits the lower plate portion 6 of the vertical plate portion 1b2 of the plate terminal 1D into the fitting hole 8, and the serrated teeth 7, 7 on both sides of the lower plate portion 6 are pressed. In addition to locking to the inner surfaces 8a and 8b of the opposing walls, the horizontal plate portion 22 is press-fitted and fixed in the fitting hole 8D, thereby further strengthening and increasing the prevention of rotation of the plate terminal due to torque during bolt tightening. Furthermore, a stable and robust terminal structure a5 is obtained.
Preferably, when the plate terminal 1D is press-fitted into the fitting hole 8D of the horizontal plate portion 22, the fitting hole 8D is filled with a curable adhesive 23 to further increase the binding fixing strength. And the prevention of fluctuations of the plate terminal 1D due to bolting can be further increased.
[0019]
Also, when connecting external terminals by tightening them with bolts and nuts, hex nuts are generally used, but each angle formed by adjacent side faces of the hex nuts is 60 degrees. When it is placed on the upper surface of the nut receiving support protrusion provided on the side, it is relatively unstable. When a bolt is screwed into this and tightened, the hexagonal bolt is rotated by the rotational torque of the screw. There is a dislike that it is easy to lift and stable and good bolting cannot be obtained. In order to improve this, it is preferable to use a stable and stable square bolt with an angle between the side faces of 90 degrees instead of the hexagon bolt. An example of such implementation is shown in FIGS. As shown in the figure, for example, after the plate terminal 1 of the type shown in the first embodiment is used and the same terminal structure a1 as shown in FIGS. In order to connect the external terminal (not shown) to the bolt, when tightening the bolt and nut, when using the square nut J ″ instead of the hexagon nut J used in the first embodiment, it is received in the bolt twist tightening The square nut J ″ having four sides that are in a right angle relationship with the torque is more stable with respect to the torque than the hexagon nut, and unlike the hexagon bolt, there is no possibility of rotating with the torque. In this case, as shown in the figure, the square nut J ″, the upper and lower side faces J ″ 1, J ″ 2 facing each other, the space between the back surface of the horizontal plate portion 1b2 and the flat upper surface 11b of the support body 11 are shown. When the screw is inserted into the nut, the rotation of the square nut J ″ can be more reliably obtained, so that extremely strong bolting can be performed stably.
[0020]
In the present invention, the number, size, shape, and the like of the serrated teeth provided on both sides of the lower plate portion of the vertical plate portion of the plate terminal vary depending on the size of the plate terminal. In addition, the serrated teeth, like saw teeth, are formed so that the teeth are bent slightly to the left and right, so-called claws, thereby increasing the degree of locking with the inner surface of the opposing wall and preventing upward slipping. Further, it may be increased.
[0021]
Furthermore, the inventors have found the following preferable facts through many tests. That is, when the lower plate portion of the vertical plate portion of the toothed plate terminal of the present invention including all the embodiments described above is press-fitted into the fitting hole provided on the lid side, the plate portion to be press-fitted is a heater or burner. Compared to press-fitting without such treatment by heat-treating with such as and press-fitting into the fitting hole with the temperature raised or by applying ultrasonic vibration to the plate part. It has been found that a more stable and robust terminal structure can be obtained.
[0022]
【The invention's effect】
Thus, according to the present invention, the plate terminal is configured as a plate terminal formed by arranging directional teeth such as arrow teeth and saw teeth at both ends of the lower plate portion of the vertical plate portion. By simply press-fitting the lower plate part into a fitting hole recessed in the bottom surface of the notch part formed in the corner of the lid of the storage battery main body, the left and right parts are deformed to the left and right by the torque generated when the bolts are screwed. Assuredly, a stable and robust terminal structure is obtained, and the assembly work is less than that required when manufacturing a storage battery having a terminal structure assembled by locking the stopper of the conventional plate terminal to the nut insertion groove. The terminal structure can be assembled easily and quickly, and a storage battery with a highly efficient terminal structure can be obtained without manufacturing loss, and the terminal structure has increased current extraction to external terminals compared to conventional plate terminals. can get.
In the above invention, serrated teeth are disposed on both sides of the lower plate portion of the front vertical plate portion provided on the plate terminal and on both sides of the lower plate portion of the rear vertical plate portion. , When press-fitting into the fitting holes arranged at the front and back of the bottom surface of the notch, and locking the front and rear, left and right four toothed teeth to the inner surface of the opposing wall, it is more stable and robust against bolting This brings about a terminal structure, and further, both side edges of the front vertical plate portion are bent backward in an L shape, while both side edges of the rear vertical plate portion are bent forward in an L shape, so that there are four corners as a whole. Since the portion is bent in an L shape and formed into a four-sided frame shape as a whole, the mechanical strength is increased, and a stable and robust terminal structure is provided for a larger tightening torque.
Further, in the above-mentioned present invention, when the nut receiving horizontal plate portion that is protruded inward by punching and bending from the vertical plate portion is formed, the nut fluctuation seen when receiving by a conventional synthetic resin terminal support body is used. Can prevent lifting, enables stable and stronger bolt tightening, while eliminating the need to form a terminal support with a nut receiving surface on the lid side, easy assembly, inexpensive and stable and robust terminal structure Resulting in a storage battery.
[Brief description of the drawings]
FIG. 1 is a perspective view of a storage battery having positive and negative terminal structures according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of a terminal structure of one pole column in FIG.
3 is an assembled perspective view of the terminal structure of FIG. 2. FIG.
4 is a sectional view taken along line IV-IV in FIG. 3;
5 is a sectional view taken along line VV in FIG.
6 is an exploded perspective view of a terminal structure of one polarity of a storage battery similar to FIG. 2 of the first embodiment in another embodiment of the present invention. FIG.
7 is a top view of a corner portion of the lid of FIG. 6. FIG.
8 is an assembled perspective view of the terminal structure of FIG. 6. FIG.
9 is a sectional view taken along line IX-VX in FIG.
10 is a sectional view taken along line XX in FIG.
FIG. 11 is an exploded perspective view of a terminal structure of one polarity of a storage battery similar to FIG. 2 of the first embodiment in still another embodiment of the present invention.
12 is an assembled perspective view of the terminal structure of FIG. 11. FIG.
13 is a sectional view taken along line XIII-XIII in FIG.
14 is a sectional view taken along line XIV-XIV in FIG. 13;
15 is an exploded perspective view of one polarity terminal structure of a storage battery similar to FIG. 2 of the first embodiment in still another embodiment of the present invention. FIG.
16 is an assembled perspective view of the terminal structure of FIG.
17 is a sectional view taken along line XVII-XVII in FIG.
18 is an exploded perspective view of a terminal structure of one polarity of a storage battery similar to FIG. 2 of the first embodiment in still another embodiment of the present invention. FIG.
19 is a sectional view similar to FIG. 4 of the terminal structure of FIG. 18;
20 is a longitudinal sectional view of a terminal structure similar to FIG. 4 showing a preferred use state of the terminal structure of the present invention. FIG.
FIG. 21 is a cross-sectional view in the width direction of a terminal structure similar to FIG. 5, showing a preferred use state of the terminal structure of the present invention.
[Explanation of symbols]
A Storage battery body
C lid
C1 corner
D Notch
d1 bottom
E Lead bushing
H pole
I Bolt
J nut
1,1A, 1B, 1C, 1D Board terminal
1a One end plate part of the plate terminal
1b Lead terminal part of plate terminal
1b1 Horizontal plate
1b2, 1b3, 1c1 Vertical plate
a1, a2, a3, a4, a5 Terminal structure
2,3,4 Bolt insertion holes
5 Nut housing space
6, 6a, 6b, 6a ', 6b' Lower terminal part of plate terminal
7, 7a, 7b, 7a ', 7b' tooth
8,8A, 8B, 8C, 8A ', 8B' Fitting hole
8a Opposite wall inner surface
8b Inner wall
16a, 16b Bending plate
17a ', 17b' bent plate
19 Nut support horizontal plate

Claims

One end plate is connected to the pole of the storage battery, and the lead-out plate led out from the pole to the substantially rectangular notch formed in the lid of the storage battery is a horizontal plate and a vertical downward from the horizontal plate. to the horizontal plate portion and the vertical plate portion is respectively bolt insertion holes provided is formed in a L-shaped lead plate made of bent vertical plate portion, and each of the horizontal plate portion and the vertical plate portion s of the plate terminal comprising brought presence nut accommodating space on the back, in the terminal structure of the storage battery formed by attaching the bottom surface of the cutout portion of the lid, the said plate terminals, on both side edges of the lower plate portion of the vertical plate portion A plate terminal is formed by engraving serrated teeth, the lower plate portion of the plate terminal is press-fitted into a fitting hole provided in the bottom surface of the notch, and the jagged teeth on both side edges thereof are opposed to the fitting hole A terminal structure of a storage battery characterized by being locked to a wall surface.

One end plate is connected to the pole of the storage battery, and the lead-out plate led out from the pole to the substantially rectangular notch formed in the lid of the storage battery is a horizontal plate and a vertical downward from the horizontal plate. to the horizontal plate portion and the vertical plate portion is respectively bolt insertion holes provided is formed in a L-shaped lead plate made of bent vertical plate portion, and each of the horizontal plate portion and the vertical plate portion s behind the plate terminal comprising brought presence nut accommodating space on the back, in the terminal structure of the storage battery formed by attaching the bottom surface of the cutout portion of the lid, the said plate terminals, from both sides of the lower plate portion of the vertical plate portion The left and right bent plate portions bent in an L-shape are arranged on the left and right sides, and the rear edge of the left and right bent plate portions is formed with serrated teeth, while the rear portion of the horizontal plate portion is bent vertically downward. Forward from both sides of the lower plate part of the vertical plate part formed opposite the rear of the vertical plate part The left and right bent plate portions bent in an L-shape are disposed, and a plate terminal is formed by engraving serrated teeth on the front end edges of the left and right bent plate portions. The left and right bent plate portions of the plate portion and the left and right bent plate portions of the rear vertical plate portion are connected to the front left and right fitting holes and the rear left and right fitting holes arranged on the bottom surface of the notch portion of the lid. A terminal structure for a storage battery, which is press-fitted into a joint hole, and the left and right serrated teeth on the front side and the left and right serrated teeth on the rear side are engaged with the inner surfaces of the opposing walls of the respective fitting holes.

The nut receiving / rotating plate portion is formed by bending a part of the vertical plate portion inwardly below the bolt insertion hole of the vertical plate portion of the plate terminal. Storage battery terminal structure.