JP4696349B2

JP4696349B2 - Game machine board case

Info

Publication number: JP4696349B2
Application number: JP2000309078A
Authority: JP
Inventors: 正博竹内; 芳生若菜; 誠田結; 英勝竹内; 誠市梁川; 義一足立; 賢治林
Original assignee: 株式会社竹屋
Priority date: 2000-10-10
Filing date: 2000-10-10
Publication date: 2011-06-08
Anticipated expiration: 2020-10-10
Also published as: JP2002113232A

Description

【０００１】
【発明の属する技術分野】
本発明は、遊技機を制御する電子部品が実装された回路基板を収納するための基板ケースに関する。
【０００２】
【従来の技術】
従来、パチンコ機等の遊技機においては、その盤面の裏面側に、遊技の制御を行なう回路基板を収容した基板ケースが設置されている。例えばパチンコ機の場合、回路基板には遊技制御を行なう主制御装置や球払出装置を制御する払出制御装置等の制御回路をなすＩＣや抵抗等の各種電子部品が実装されており、基板ケースはこの回路基板を外部から保護する役割をしている。
【０００３】
しかしながら、このようなパチンコ機が設置されたパチンコホールにて、主制御装置が大当たり等を判定するためのプログラムが記憶されたＲＯＭが不正に交換され、パチンコホールの運営者が多大な損害を被るといった問題が生じていた。
【０００４】
このため、近年ではこうした不正行為を防止するために、この基板ケースに封止部を設け、不正に開封されることを防止する技術が採用されている。具体的には、基板ケースのベース部材（パチンコ機に取り付けられる側の部材）に各種電子部品が実装された基板をボルト締めした後、カバー部材にて覆い、封止部にて封止する構造を採っている。尚、パチンコ機の基板ケースは、製造後にこの封止部を用いて一旦封止されるが、警察等の機関によってその開封を要求されることがあるため、複数回封止可能となっている。
【０００５】
この封止部の具体的構成としては、例えば、ベース部材及びカバー部材の周端縁に夫々複数個のボスを設け、ベース部材をカバー部材で覆うと両者のボスの位置が整合する構成が採用されている。そして、このように位置が整合したボスのいずれかがワンウェイねじ等で固定されることにより、ベース部材とカバー部材とが固定され、上記回路基板がこれらベース部材とカバー部材とにより形成される収納空間に封止される。この場合、基板ケースの開封は、ワンウェイねじ等が固定されたボスを基板ケースから切断することにより行われ、再度封止する際には、不使用のボスのいずれかが再度ワンウェイねじ等で固定される。
【０００６】
【発明が解決しようとする課題】
ところで、上記ワンウェイねじは、そのねじ頭に特殊な加工が施されており、通常の工具を用いて締結方向に回すことができても、その逆方向（緩める方向）に回してリバースすることはできないようになっている。このため、このワンウェイねじを上述のように整合したボスに対して一方向に螺入することにより、ベース部材とカバー部材とを離脱困難に固定できる。
【０００７】
しかし近年、特殊な工具により上記ワンウェイねじをリバースさせて基板ケースの封止を解除し、上述したＲＯＭを不正に交換する者が現れるようになった。
そこで、このようなワンウェイねじではなく、一端に逆止片を他端にフランジ状の係止部を有する固定部材を採用し、この固定部材を上述のように整合したボスに設けられた孔に対して一方向に挿入することにより、ベース部材とカバー部材とを離脱困難に固定する構成も採用されている。
【０００８】
そして、このような嵌め込み式の固定部材を採用することにより、特殊な工具を用いてもこれを取り外すことができず、第三者の不正行為を効果的に防止できるようになった。しかも、固定部材を孔に挿入するのみでよいため、その取付作業を簡易かつ迅速に行える。
【０００９】
しかしながら、この固定部材は、その係止部や逆止片の構造が比較的複雑であるため、金属材料により製造しようとするとコストがかかる等の理由から、通常は樹脂材を一体成形して形成される。このため、この固定部材がドリル等の鋭利な工具等で破壊されて基板ケースが開封されると上述した不正行為を容易に行うことができるという問題があった。そしてさらに、このように固定部材が破壊されて不正ＲＯＭに交換された後に新しい固定部材を差し込まれると、その不正行為の痕跡さえ発見できないという問題があった。
【００１１】
本発明はかかる課題に鑑みなされたものであり、回路基板を実装した基板に対し、不正行為が行われることを有効に防止するための基板ケースの封止構造を提供することを目的とする。
【００１２】
【課題を解決するための手段及び発明の効果】
上記課題に鑑み、請求項１記載の遊技機の基板ケースは、
遊技機に固定されるベース部材と、
該ベース部材に組み付けられ、該ベース部材との間に所定の収納空間を形成するカバー部材と、
該ベース部材と該カバー部材とを重合させた状態で該両部材に取り付けられ、該両部材を取り外し不能に固定する固定部材と、
を備え、該固定部材を前記両部材に取り付けることにより、遊技機を制御する電子部品が実装された回路基板を、前記収納空間に封止する遊技機の基板ケースにおいて、
前記固定部材は樹脂材料から形成され、その少なくとも前記カバー部材側に露出する部分には、金属材料からなる保護部材が装着されており、
前記固定部材は、軸状の本体の一端に逆止片を、他端にフランジ状の係止部を有し、前記ベース部材に前記カバー部材を組み付けた際にこれらを連通する連通孔に一方向に挿入され、該係止部と該逆止片により前記ベース部材と前記カバー部材とを互いに固定し、
前記連通孔は、前記カバー部材に設けられた円孔と、前記ベース部材に設けられた円孔とが同軸状に連通することにより形成され、
前記固定部材は、ほぼ円柱状をなし、前記連通孔に対して自軸周りに回転可能に遊嵌されたことを特徴とする。
【００１３】
かかる基板ケースによれば、製造コスト等の観点より固定部材が樹脂材料から形成されているが、この固定部材の露出部分が金属材料からなる保護部材により保護されているため、鋭利な工具を用いてもこれを破壊することは極めて困難である。このため、第三者が固定部材を破壊することにより基板ケースの封止状態を解除することは極めて困難となり、上述のような不正行為を有効に防止することができる。
【００１４】
また、上記固定部材としては、軸状の本体の一端に逆止片を、他端にフランジ状の係止部を有し、ベース部材にカバー部材を組み付けた際にこれらを連通する連通孔に一方向に挿入され、これら係止部と逆止片によりベース部材とカバー部材とを互いに固定するものが考えられる。
【００１５】
このように、固定部材の一端に、所定の孔に対して一方向にのみ挿入可能な逆止片が設けられているため、固定部材がこの一端から連通孔内に完全に挿入されると、逆止片が係止されて固定部材の逆方向の移動を阻止する。このため、固体部材を引き抜くことは不可能となる。また、このとき同時に係止片も係止されるため、固定部材の挿入方向の移動も阻止され、固定部材を連通孔から押し出すことも不可能となる。つまり、固定部材が一旦連通孔に挿入され固定されるとこれを取り除くことはできない。また、固定部材の取付作業はこれを連通孔に押し込むだけでよく、簡易かつ迅速に行われる。
【００１６】
またこの場合、上記保護部材として、固定部材の係止部にこれと同形状の金属片を単に接着することも考えられるが、これでは当該金属片を容易に剥がされる虞がある。
そこで、保護部材として固定部材に螺着されるものを用いるとよい。かかる構成によれば、保護部材が固定部材に対して強固に固定されるからである。
【００１７】
この場合、保護部材を係止部に螺入されたワンウェイねじの頭部から構成するとさらに好ましい。
このワンウェイねじは、締結方向にのみ回動可能に構成されており、一旦係止部に螺入されると、通常の工具を用いてこれをリバースさせることは不可能となるからである。
【００１８】
ただし、このようなワンウェイねじを固定部材に対して固定する場合には、所定の工具を用いてこれを螺入させる作業を要するため、より簡易かつ迅速に保護部材を固定部材に装着できる構成が望まれる。
そこで、上記係止部を含む固定部材の頭部に予め嵌合用の溝を形成しておき、保護部材としての金属片に突設した嵌合部を、これに圧入嵌合させることにより固定するようにしてもよい。
【００１９】
この圧入工程は自動化することもでき、固定部材に対して保護部材を簡易かつ迅速に装着することができる。
しかしながら、上記のように保護部材をワンウェイねじにより構成したとしても、特殊な工具を用いることによりこれをリバースさせることが可能となる場合がある。また、上記のように保護部材として金属片を圧入嵌合したとしても、例えば硬度の高い工具等を使用してこれを破壊することが可能となる場合がある。
【００２０】
そこで、請求項１記載の基板ケースでは、上記連通孔が、カバー部材に設けられた円孔とベース部材に設けられた円孔とが同軸状に連通することにより形成される一方、上記固定部材がほぼ円柱状をなし、当該固定部材が連通孔に対して自軸周りに回転可能に遊嵌されている。
【００２１】
このため、特殊な工具を用いることによりワンウェイねじをリバースさせようとしても、ワンウェイねじが固定された固定部材自体が自軸周りに回動してしまうため、結局、固定部材に対してワンウェイねじをリバース方向に回動させることができず、これを取り除くことができない。また、硬度の高い工具を用いることにより、圧入嵌合された金属片をえぐり取ろうとしても、金属片が嵌入された固定部材自体が自軸周りに回動してしまうため、金属片をえぐることができない。
この結果、第三者が保護部材を除去する行為を有効に防止することができる。
【００２２】
請求項２記載の遊技機の基板ケースは、
遊技機に固定されるベース部材と、
該ベース部材に組み付けられ、該ベース部材との間に所定の収納空間を形成するカバー部材と、
該ベース部材と該カバー部材とを重合させた状態で該両部材に取り付けられ、該両部材を取り外し不能に固定する固定部材と、
を備え、該固定部材を前記両部材に取り付けることにより、遊技機を制御する電子部品が実装された回路基板を、前記収納空間に封止する遊技機の基板ケースにおいて、
前記固定部材は樹脂材料から形成され、その少なくとも前記カバー部材側に露出する部分には、金属材料からなる保護部材が装着されており、
前記固定部材は、軸状の本体の一端に逆止片及び前記本体の軸線に沿ったスリットを備え、他端にフランジ状の係止部を有し、前記ベース部材に前記カバー部材を組み付けた際にこれらを連通する連通孔に一方向に挿入され、該係止部と該逆止片により前記ベース部材と前記カバー部材とを互いに固定し、
前記固定部材における前記一端は、前記スリットにより、前記スリットの幅方向に弾性変形可能であり、
前記逆止片は、前記一端の弾性変形により前記連通孔に導入可能となるとともに、前記連通孔を貫通すると、前記一端の弾性復帰により外側に広がり、逆方向に引き抜くことができなくなる
ことを特徴とする。
【００４４】
【発明の実施の形態】
以下、本発明の好適な実施例を図面に基づいて説明する。図１は本実施例にかかる遊技機の基板ケース（以下、単に「基板ケース」という）の斜視図であり、図２は当該基板ケースの分解斜視図である。尚、当該基板ケースは、図示しないパチンコ機の盤面の裏側略中央に取り付けられ、画像制御基板や賞球制御基板等とコネクタを介して結線されるものである。
【００４５】
図１に示すように、基板ケース１は、パチンコ機に直接取り付けられる略長方形状のベース部材１０と、ベース部材１０に組み付けられる長方形状のカバー部材２０とを備えている。これらベース部材１０及びカバー部材２０は、共に透明の合成樹脂から形成されている。
【００４６】
まず、カバー部材２０について説明する。
図２に示すように、カバー部材２０は無蓋箱状の本体２１を有し、その内部には、遊技機を制御する電子部品が実装された回路基板６１が螺合固定される。そして、この状態からカバー部材２０をベース部材１０に重合させた状態で、後に詳述する固定部材５０によりこれらを固定することにより、カバー部材２０とベース部材１０との間に形成される収納空間に回路基板６１が封止されるように構成されている。
【００４７】
より詳しくは、カバー部材２０は上下対称かつ左右対称に構成されており、図３（ａ）にその背面図を示すように、本体２１の左右側面に上下方向に等間隔に設けられ外方に延出する複数の補強リブ２２を介して、本体２１の側面に平行に延びる平板状の透明な合成樹脂からなる側壁部材２３が設けられている。そして、隣接する補強リブ２２の間に位置する側壁部材２３の内面からは、本体２１に向かって支持リブ２４が延設されており、その先端に円筒状の筒状部材２５（第１筒状部材）が連設されている。この筒状部材２５は、内部にベース部材１０側に小径化する段差部を有し（後述する）、カバー部材２０において左右対称に４個づつ計８個設けられている。
【００４８】
また、本体２１の上下側面からは、外方に延びるフランジ部２６がそれぞれ設けられ、このフランジ部２６の先端縁には、ベース部材１０との重合方向に延出した側壁部２７が連設されている。そして、この側壁部２７の外面の左右方向に等間隔に設けられ外方に延出する複数の補強リブ２８を介して、本体２１の側面に平行に延びる平板状のガイド部材２９が設けられている。尚、フランジ部２６には、回路基板６１に設けられたコネクタ群を外部に露出させるための複数のコネクタ窓２６ａが形成されている。
【００４９】
そして、側壁部２７とガイド部材２９との間には、互いに隣接する一方の補強リブ２８の側壁部２７側から当該側壁部２７に沿って延びる４つの係合部３１が突設され、隣接する他方の補強リブ２８とこの係合部３１との間に、後述するベース部材１０側の係合部を挿入してスライドさせるための鈎状の開口部３２が形成されている。尚、この係合部３１は、隣接する補強リブ２８に対し一つおきに設けられ、係合部３１が設けられてない補強リブ２８間は、板状の架橋部材３３により閉口されている。
【００５０】
さらに、上述したフランジ部２６は本体２１の左右にも延出し、上記補強リブ２２のうち上下の両端に配置されたものにそれぞれ連設してフランジ部３４を構成する。そして、図２に示すように、この左右に延出した上下のフランジ部３４の部分をそれぞれ架橋する態様で一対の被覆部材３５が装着されている。
【００５１】
これら被覆部材３５は、ベース部材１０側に開口する無蓋箱状に形成され、上記フランジ部３４に対向して立設された二つの支持部３６に挟持される態様で、当該フランジ部３４に螺合固定される。そして、その各々が上記４つの筒状部材２５を被覆してこれらを外部から遮蔽している。
【００５２】
また、図５に図１のＡ−Ａ断面を示すように、被覆部材３５の上壁部３５ａにおいて４つの筒状部材２５に対応する位置には、これら筒状部材２５と同様の形状を有する４つの筒状部３５ｂが重合方向に延設され、これら筒状部３５ｂの孔と対応する筒状部材２５の孔とが連通するように構成されている。そして、固定部材５０が、筒状部材２５の下端に設けられた段差部２５ａにより支持され、筒状部３５ｂと筒状部材２５との間に形成される待機空間に保持されるようになっている。尚、この構成の詳細については後述する。
【００５３】
さらに、被覆部材３５の上壁部３５ａにおいて各固定部材５０に対向する位置には、所定の棒状部材を挿通可能な小孔３５ｃが穿設されており、この小孔３５ｃに棒状部材を挿通して、いずれかの固定部材５０をベース部材１０側へ押圧することができるようになっている。
【００５４】
また、図３（ａ）に示すように、カバー部材２０の本体２１の隅部には、４つのボス３７が設けられており、図２に示すように、このボス３７に回路基板６１が螺合固定される。この際、回路基板６１は、図示しない電子部品群が設けられた側の面がカバー部材２０内を向くように固定される。
【００５５】
尚、回路基板６１をカバー部材２０のボス３７に固定する際には、回路基板６１とカバー部材２０との間に上下一対のコネクタカバー６２が介装される。このコネクタカバー６２は、回路基板６１上に設けられた図示しないコネクタ群の各コネクタの形状に対応した穴６３が形成された枠状部材であり、回路基板６１をカバー部材２０に固定すると、コネクタ群が穴６３及びコネクタ窓２６ａを介してカバー部材２０から露出されるようになっている。
【００５６】
次に、ベース部材１０について説明する。
ベース部材１０は上下対称かつ左右対称に構成されており、図３（ｂ）にその背面図を示すように、無蓋箱状の本体１１の左右側面に上下方向に等間隔に設けられ外方に延出する複数の補強リブ１２を介して、本体１１の側面に平行に延びる平板状の側壁部材１３が設けられいる。そして、隣接する補強リブ１２間の空間に、本体１１の側面から延設された支持リブ１４と側壁部材１３の内面から延設された支持リブ１６とにより筒状部材（第２筒状部材）１５が支持されている。この筒状部材１５は、上記筒状部材２５と同様の形状を有し、ベース部材１０において左右対称に４個づつ計８個設けられている。そして、さらにこれら筒状部材１５の開口部には、図２及び図５（ａ）に示すように、逆止リング１７が同軸状に装着されている。この逆止リング１７は、固定部材５０の後述する逆止片を係止するためのものであり、その外径が筒状部材１５の内径に一致し、内径が筒状部材２５の小径部２５ｂの内径にほぼ一致する筒状体からなる。そして、その一端に設けられたフランジ部１７ａが筒状部材１５の開口部に係止されるようになっている。逆止リング１７は、そのフランジ部１７ａが筒状部材１５に接着されて固定される。そして、カバー部材２０が重合した際には、図５に示すように、筒状部材２５と筒状部材１５とが同軸状に配置されるように構成されている。
【００５７】
また、図６（ａ）に図１のＢ−Ｂ断面図を、図６（ｂ）にその分解図を示すように、本体１１の上下の側壁部１１ａからは、カバー部材２０の４つの係合部３１にそれぞれ係合可能な４つの鈎状の係合部１８がカバー部材２０側に向かって突設されている（図２及び図３（ｂ）参照）。この係合部１８は、側壁部１１ａに沿って左右に延びると共にカバー部材２０側に延出した突出部１８ａと、この突出部１８ａの左右方向の一端から内方に延びると共にカバー部材２０側に延出した突出部１８ｂの先端に、これら両突出部の端縁を二辺とする長方形状の小片部１８ｃが連設された形状を有する。この小片部１８ｃは、上記カバー部材２０側の開口部３２に挿通可能な大きさに形成されており、当該係合部１８がカバー部材２０側の係合部３１に沿ってスライドすると、その突出部１８ｂが係合部３１の端縁に当接して係止されるようになっている。
【００５８】
また、本体１１の側壁部１１ａよりも内側の位置には、４つの係合部１８と対向するように、左右方向に延びる防護リブ１９がカバー部材２０側に突設されており、図６（ａ）のようにカバー部材２０がベース部材１０に組み付けられた際には、カバー部材２０の側壁部２７が、係合部１８と防護リブ１９とにより挟持されつつ支持されるようになっている。そして更に、このガイド部材２９とカバー側壁部２７から延設された係合部３１とにより、カバー部材２０の係合部１８を挟持する態様で、カバー部材２０とベース部材１０とが固定されている。このため、第三者が外方から側壁部２７を内方に押し込んでカバー部材２０をベース部材１０から脱離させる等の不正行為が有効に防止される。
【００５９】
次に、固定部材５０について説明する。
固定部材５０は、図４に示すように、下方にやや縮径した円柱状の本体５１の上端部にフランジ状の係止部５２が形成され、その中央から下端にかけて軸線に沿った所定幅のスリット５３が形成されている。このため、固定部材５０の下部はスリット５３の幅方向に所定量弾性変形できるようになっている。また、本体５１の下端には、外径方向に突出した逆止片５４が設けられている。この逆止片５４は、固定部材５０の下端側から上方に向かってその断面が大きくなるテーパ状に形成され、その下端部が挿入部５４ａを、上端部が係止部５４ｂをそれぞれ形成している。従って、固定部材５０が所定の孔に挿入される際には、挿入部５４ａがテーパ状になっていることから孔入口にスムーズに導入され、さらに固定部材５０がその下部で撓みながら孔内にスムーズに挿入される。そして、逆止片５４が孔を貫通すると、固定部材５０の下端部が弾性復帰して係止部５４ｂが係止されるため、固定部材５０を挿入方向とは逆方向に引き抜くことは不可能となる。
【００６０】
また、固定部材５０の上端部には、ワッシャ５５を介してワンウェイねじ５６が螺入されている。このワッシャ５５には、その外径が係止部５２の上端面の外径と同一のものが使用されているため、固定部材５０の係止部５２の表面は、金属部材により覆われるようになっている。尚、このワンウェイねじ５６は、周知のように、締結方向にのみ回動可能に構成されたねじであり、一旦係止部５２に螺入されると、工具を用いてこれをリバースさせることは極めて困難となる。
【００６１】
そして、この固定部材５０は、図５において最も左側の固定部材５０のように、その逆止片５４が筒状部材２５の段差部２５ａに支持され、係止部５２が筒状部３５ｂの内壁に支持される態様で、被覆部材３５と筒状部材２５との間に形成される待機空間に一時的に保持される。尚、カバー部材２０に配置された固定部材５０の全てがこの待機空間に保持されている状態においては、カバー部材２０はベース部材１０に対して固定されないため、そのスライド方向に動作させることが可能である。
【００６２】
次に、基板ケース１の封止方法について説明する。
基板ケース１の封止の際には、まず、上述のように回路基板６１が組み付けられたカバー部材２０を、ベース部材１０に重合させる。この際、カバー部材２０の開口部３２にベース部材１０の小片部１８ｃを突き合わせてその係合部１８を挿入する。そして、カバー部材２０の係合部３１とベース部材１０の係合部１８とを係合させる方向に、カバー部材２０をベース部材１０に対してスライドさせる。
【００６３】
そして、係合部３１の先端がベース部材１０の係合部１８に係止されることにより重合状態となり、この状態から所定の棒状部材をカバー部材２０の小孔３５ｃに挿通し、上述した待機空間にて待機状態にある固定部材５０のいずれかを押圧して、これを筒状部材２５及び筒状部材１５により形成される連通孔５８内に挿入する。すると、図５において左から２番目の固定部材５０のように、固定部材５０が筒状部材２５の小径部２５ｂと逆止リング１７内部により形成される連通孔５８内に挿通される。このとき、固定部材５０の逆止片５４が逆止リング１７の端面に、係止部５２が筒状部材２５の段差部２５ａにそれぞれ係止されることにより、固定部材５０がベース部材１０とカバー部材２０とを挟持する態様でこれらを互いに固定して基板ケース１を封止する。このとき、固定部材５０は連通孔５８に対して遊嵌されているため、自軸周りに回動可能となっている。
【００６４】
尚、この封止作業においては、左右に４対（計８個）配設された固定部材５０のうち、左右対称に配置された一対（２個）が使用されるため、本実施例の場合、パチンコ機の出荷時を含めて計４回の封止が可能となっている。
また、封止状態を解除する際には、このとき用いられた固定部材５０を保持する筒状部材２５の支持リブ２４及び筒状部材１５の支持リブ１４、１６をニッパ等の工具により切断して取り除き、上述した操作を逆に行なえば、カバー部材２０をベース部材１０から離脱させることができる。
【００６５】
そして、このように封止された基板ケース１は、電磁波シールド用（不正行為防止用）の金属板７０を介してパチンコ機の盤面の裏側に装着される。
以上のように、本実施例の基板ケース１においては、固定部材５０の係止部の露出部分が金属材料からなるワンウェイねじ５６により保護されているため、これを破壊することは極めて困難である。また、固定部材５０が筒状部材２５及び筒状部材１５により形成される連通孔５８に対して自軸周りに回転可能に遊嵌されているため、特殊な工具を用いることによりワンウェイねじ５６をリバースさせようとしても、ワンウェイねじ５６が固定された固定部材５０自体が自軸周りに回動してしまうため、結局、固定部材５０に対してワンウェイねじ５６をリバース方向に回動させることができず、これを取り除くことができない。
【００６６】
このため、第三者が固定部材５０を破壊することにより基板ケース１の封止状態を解除することは極めて困難となり、その不正行為を有効に防止することができる。
カバー部材２０及びベース部材１０が透明な樹脂材料から形成され、筒状部材１５及び筒状部材２５が、共に外側に設けられた側壁部材から内方（収納空間の方向）に向かって延設された支持リブ２４、１６に連設されているため、当該支持リブが不正行為により精巧に切断された後、巧妙に接着剤等で修復された場合にも、側壁部材の側方から支持リブ２４又は１６の変化を観察することにより、これを容易に発見することができる。
【００６７】
以上、本発明の実施例について説明したが、本発明の実施の形態は、上記実施例に何ら限定されることなく、本発明の技術的範囲に属する限り種々の形態をとり得ることはいうまでもない。
例えば、上記実施例では、固定部材５０の頭部にワンウェイねじ５６が取り付けられているが、ワンウェイねじ５６の代わりに単なる金属板を採用し、これを固定部材５０の係止部の表面に接着してもよい。或いは、係止部を含む固定部材５０の頭部に予め嵌合用の溝を形成しておき、金属片に突設した嵌合部を、これに圧入嵌合させる構成としてもよい。
【図面の簡単な説明】
【図１】本発明の実施例に係る遊技機の基板ケースの斜視図である。
【図２】実施例の基板ケースの分解斜視図である。
【図３】実施例の基板ケースを構成するカバー部材及びベース部材の背面図である。
【図４】実施例の固定部材を表す説明図である。
【図５】基板ケースの封止構造を表す説明図である。
【図６】カバー部材とベース部材との組み付け構造を表す説明図である。
【符号の説明】
１・・・基板ケース、１０・・・ベース部材、１２・・・補強リブ、
１３・・・側壁部材、１４，１６・・・支持リブ、１５・・・筒状部材、
２０・・・カバー部材、２２・・・補強リブ、２３・・・側壁部材、
２４・・・支持リブ、２５・・・筒状部材、３５・・・被覆部材、
３５ｃ・・・小孔、５０・・・固定部材、５６・・・ワンウェイねじ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a board case for housing a circuit board on which electronic components for controlling a gaming machine are mounted.
[0002]
[Prior art]
Conventionally, in a gaming machine such as a pachinko machine, a board case containing a circuit board for controlling a game is installed on the back side of the board surface. For example, in the case of a pachinko machine, the circuit board is mounted with various electronic components such as ICs and resistors that form a control circuit such as a main control device that controls the game and a payout control device that controls the ball payout device. The circuit board is protected from the outside.
[0003]
However, in the pachinko hall where such a pachinko machine is installed, the ROM storing the program for the main control device to determine the jackpot etc. is illegally replaced, and the pachinko hall operator suffers a great deal of damage. There was a problem such as.
[0004]
For this reason, in recent years, in order to prevent such an illegal act, a technology has been adopted in which a sealing portion is provided in the substrate case to prevent unauthorized opening. Specifically, a structure in which a board on which various electronic components are mounted is bolted to a base member of a board case (a member attached to a pachinko machine), and then covered with a cover member and sealed with a sealing portion Is adopted. The pachinko machine substrate case is once sealed after manufacturing using this sealing part, but it may be required to be opened by an organization such as the police, so it can be sealed multiple times. .
[0005]
As a specific configuration of the sealing portion, for example, a configuration is adopted in which a plurality of bosses are provided on the peripheral edges of the base member and the cover member, and the positions of both bosses are aligned when the base member is covered with the cover member. Has been. The base member and the cover member are fixed by fixing one of the bosses whose positions are aligned with each other with a one-way screw or the like, and the circuit board is formed by the base member and the cover member. Sealed in space. In this case, the board case is unsealed by cutting the boss to which the one-way screw or the like is fixed from the board case, and when sealing again, any unused boss is fixed again by the one-way screw or the like. Is done.
[0006]
[Problems to be solved by the invention]
By the way, the above-mentioned one-way screw has a special processing on its screw head, and even if it can be turned in the fastening direction using a normal tool, it cannot be turned in the reverse direction (relaxing direction) to reverse it. I can't do it. For this reason, by screwing this one-way screw in one direction with respect to the boss aligned as described above, it is possible to fix the base member and the cover member with difficulty.
[0007]
However, in recent years, there have been those who illegally replace the ROM described above by reversing the one-way screw with a special tool to release the sealing of the substrate case.
Therefore, instead of such a one-way screw, a fixing member having a check piece at one end and a flange-like locking portion at the other end is adopted, and this fixing member is inserted into a hole provided in the boss aligned as described above. On the other hand, a configuration is also adopted in which the base member and the cover member are fixed with difficulty in detachment by being inserted in one direction.
[0008]
And by adopting such a fitting-type fixing member, even if a special tool is used, it cannot be removed, and a fraudulent act by a third party can be effectively prevented. In addition, since it is only necessary to insert the fixing member into the hole, the attaching operation can be performed easily and quickly.
[0009]
However, since the structure of the locking portion and the check piece is relatively complicated, this fixing member is usually formed by integrally molding a resin material for the reason that it is costly to manufacture with a metal material. Is done. For this reason, there has been a problem that the above-described fraud can be easily performed when the fixing member is broken by a sharp tool such as a drill and the substrate case is opened. Furthermore, there is a problem that even if a new fixing member is inserted after the fixing member is destroyed and replaced with the illegal ROM in this way, even the trace of the illegal act cannot be found.
[0011]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a substrate case sealing structure for effectively preventing an illegal act from being performed on a substrate on which a circuit board is mounted.
[0012]
[Means for Solving the Problems and Effects of the Invention]
In view of the above problems, the board case of the gaming machine according to claim 1,
A base member fixed to the gaming machine;
A cover member assembled to the base member and forming a predetermined storage space with the base member;
A fixing member that is attached to the two members in a state in which the base member and the cover member are polymerized, and that fixes the two members in a non-removable manner;
In a board case of a gaming machine that seals a circuit board on which electronic components for controlling a gaming machine are mounted in the storage space by attaching the fixing member to both the members,
The fixing member is formed of a resin material, and at least a portion exposed to the cover member side is equipped with a protective member made of a metal material ,
The fixing member has a check piece at one end of a shaft-shaped main body and a flange-like locking portion at the other end, and is connected to a communication hole that communicates the cover member when the cover member is assembled to the base member. Inserted in the direction, the base member and the cover member are fixed to each other by the locking portion and the check piece,
The communication hole is formed by coaxially communicating a circular hole provided in the cover member and a circular hole provided in the base member,
The fixing member has a substantially cylindrical shape and is loosely fitted to the communication hole so as to be rotatable about its own axis .
[0013]
According to such a substrate case, the fixing member is formed of a resin material from the viewpoint of manufacturing cost and the like, but since the exposed portion of the fixing member is protected by the protective member made of a metal material, a sharp tool is used. However, it is extremely difficult to destroy it. For this reason, it becomes extremely difficult for a third party to release the sealed state of the substrate case by destroying the fixing member, and illegal acts such as those described above can be effectively prevented.
[0014]
The fixing member has a check piece at one end of the shaft- shaped main body, a flange-like locking portion at the other end, and a communication hole for communicating these when the cover member is assembled to the base member. It can be inserted in one direction, and the base member and the cover member can be fixed to each other by these locking portions and check pieces.
[0015]
Thus, since the check piece that can be inserted only in one direction with respect to the predetermined hole is provided at one end of the fixing member, when the fixing member is completely inserted into the communication hole from the one end, The check piece is locked to prevent the fixing member from moving in the reverse direction. For this reason, it becomes impossible to pull out the solid member. Further, at this time, since the locking piece is also locked, the movement of the fixing member in the insertion direction is prevented, and it is impossible to push out the fixing member from the communication hole. That is, once the fixing member is inserted into the communication hole and fixed, it cannot be removed. Further, the fixing member can be attached simply by pushing it into the communication hole, and can be performed easily and quickly.
[0016]
In this case, as the protective member, it may be possible to simply bond a metal piece having the same shape to the locking portion of the fixing member, but this may cause the metal piece to be easily peeled off.
Therefore, it is preferable to use those which are screwed to the fixing member as a protection member. This is because the protective member is firmly fixed to the fixing member according to such a configuration.
[0017]
Further preferably in this case, it constitutes a protection member from the head of the threaded been one-way screw the locking portion.
This is because the one-way screw is configured to be rotatable only in the fastening direction, and once screwed into the locking portion, it cannot be reversed using a normal tool.
[0018]
However, in the case of fixing such a one-way screw to the fixing member, since a work for screwing the one-way screw with a predetermined tool is required, a configuration in which the protective member can be attached to the fixing member more easily and quickly. desired.
Therefore, fixed by previously formed grooves for previously fitted to the head of the fixing member including an upper Symbol engaging portion, the engaging portion projecting from the metal piece as a protective member, to press-fit thereto You may make it do.
[0019]
This press-fitting process can also be automated, and the protective member can be easily and quickly attached to the fixed member.
However, even if the protective member is constituted by a one-way screw as described above, it may be possible to reverse this by using a special tool. Moreover, even if a metal piece is press-fitted and fitted as a protective member as described above, it may be possible to break it using, for example, a tool with high hardness.
[0020]
Therefore, in the substrate case according to claim 1 , the communication hole is formed by coaxially communicating a circular hole provided in the cover member and a circular hole provided in the base member, while the fixing member Is substantially cylindrical, and the fixing member is loosely fitted to the communication hole so as to be rotatable about its own axis.
[0021]
For this reason, even if an attempt is made to reverse the one-way screw by using a special tool, the fixing member itself to which the one-way screw is fixed rotates around its own axis. It cannot be rotated in the reverse direction and cannot be removed. In addition, by using a tool having high hardness, the fixing member itself in which the metal piece is inserted rotates around its own axis even if the metal piece that has been press-fitted and fitted is to be removed. I can't.
As a result, it is possible to effectively prevent a third party from removing the protective member.
[0022]
The board case of the gaming machine according to claim 2,
A base member fixed to the gaming machine;
A cover member assembled to the base member and forming a predetermined storage space with the base member;
A fixing member that is attached to the two members in a state in which the base member and the cover member are polymerized, and that fixes the two members in a non-removable manner;
In a board case of a gaming machine that seals a circuit board on which electronic components for controlling a gaming machine are mounted in the storage space by attaching the fixing member to both the members,
The fixing member is formed of a resin material, and at least a portion exposed to the cover member side is equipped with a protective member made of a metal material,
The fixing member includes a check piece and a slit along the axis of the main body at one end of the shaft-shaped main body, a flange-shaped locking portion at the other end, and the cover member is assembled to the base member. When inserted in one direction into the communication hole that communicates these, the base member and the cover member are fixed to each other by the locking portion and the check piece,
The one end of the fixing member is elastically deformable in the width direction of the slit by the slit,
The check piece can be introduced into the communication hole by elastic deformation of the one end, and when the check piece penetrates the communication hole, it spreads outward by elastic return of the one end and cannot be pulled out in the reverse direction.
It is characterized by that.
[0044]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a board case (hereinafter simply referred to as “board case”) of the gaming machine according to the present embodiment, and FIG. 2 is an exploded perspective view of the board case. The board case is attached to the center of the back side of the pachinko machine (not shown) and is connected to the image control board, the winning ball control board, and the like via a connector.
[0045]
As shown in FIG. 1, the substrate case 1 includes a substantially rectangular base member 10 that is directly attached to a pachinko machine, and a rectangular cover member 20 that is assembled to the base member 10. Both the base member 10 and the cover member 20 are made of a transparent synthetic resin.
[0046]
First, the cover member 20 will be described.
As shown in FIG. 2, the cover member 20 has an uncovered box-shaped main body 21 in which a circuit board 61 on which electronic components for controlling the gaming machine are mounted is screwed and fixed. The storage space formed between the cover member 20 and the base member 10 by fixing the cover member 20 to the base member 10 from this state and fixing them with the fixing member 50 described in detail later. The circuit board 61 is sealed.
[0047]
More specifically, the cover member 20 is configured to be vertically and horizontally symmetrical. As shown in the rear view of FIG. 3A, the cover member 20 is provided on the left and right side surfaces of the main body 21 at equal intervals in the vertical direction and outward. A side wall member 23 made of a plate-like transparent synthetic resin extending in parallel with the side surface of the main body 21 is provided via a plurality of extending reinforcing ribs 22. And from the inner surface of the side wall member 23 located between the adjacent reinforcement ribs 22, the support rib 24 is extended toward the main body 21, The cylindrical member 25 (1st cylinder shape) is extended at the front-end | tip. Member) is provided continuously. The cylindrical member 25 has a stepped portion with a reduced diameter on the side of the base member 10 inside (described later), and a total of eight cylindrical members 25 are provided in the cover member 20, four in a symmetrical manner.
[0048]
Further, outwardly extending flange portions 26 are respectively provided from the upper and lower side surfaces of the main body 21, and a side wall portion 27 extending in the overlapping direction with the base member 10 is connected to the front end edge of the flange portion 26. ing. A flat guide member 29 extending in parallel with the side surface of the main body 21 is provided via a plurality of reinforcing ribs 28 provided at equal intervals in the left-right direction of the outer surface of the side wall portion 27 and extending outward. Yes. The flange portion 26 is formed with a plurality of connector windows 26a for exposing the connector group provided on the circuit board 61 to the outside.
[0049]
And between the side wall part 27 and the guide member 29, the four engaging parts 31 extended along the said side wall part 27 from the side wall part 27 side of the mutually adjacent one of the reinforcement ribs 28 protrude, and are adjacent. Between the other reinforcing rib 28 and the engaging portion 31, a hook-shaped opening portion 32 is formed for inserting and sliding an engaging portion on the base member 10 side described later. In addition, this engagement part 31 is provided every other reinforcement rib 28, and between the reinforcement ribs 28 where the engagement part 31 is not provided is closed by a plate-like bridging member 33.
[0050]
Further, the flange portion 26 described above also extends to the left and right of the main body 21, and the flange portion 34 is configured to be connected to the reinforcing ribs 22 disposed at both the upper and lower ends. And as shown in FIG. 2, a pair of coating | coated member 35 is mounted | worn with the aspect which bridge | crosslinks the part of the up-and-down flange part 34 extended to this right and left, respectively.
[0051]
These covering members 35 are formed in a lidless box shape that opens to the base member 10 side, and are screwed into the flange portion 34 in such a manner that the covering members 35 are sandwiched between two support portions 36 erected facing the flange portion 34. Fixed. And each of them covers the four cylindrical members 25 to shield them from the outside.
[0052]
Further, as shown in the AA cross section of FIG. 1 in FIG. 5, the upper wall portion 35a of the covering member 35 has the same shape as those of the cylindrical members 25 at positions corresponding to the four cylindrical members 25. Four cylindrical portions 35b are extended in the overlapping direction, and the holes of the cylindrical portions 35b and the corresponding holes of the cylindrical member 25 are configured to communicate with each other. And the fixing member 50 is supported by the level | step-difference part 25a provided in the lower end of the cylindrical member 25, and comes to be hold | maintained in the standby space formed between the cylindrical part 35b and the cylindrical member 25. Yes. Details of this configuration will be described later.
[0053]
Further, a small hole 35c through which a predetermined rod-shaped member can be inserted is formed at a position facing the fixing member 50 in the upper wall portion 35a of the covering member 35, and the rod-shaped member is inserted into the small hole 35c. Thus, any one of the fixing members 50 can be pressed toward the base member 10 side.
[0054]
3A, four bosses 37 are provided at the corners of the main body 21 of the cover member 20, and the circuit board 61 is screwed to the bosses 37 as shown in FIG. Fixed. At this time, the circuit board 61 is fixed so that the surface on which the electronic component group (not shown) is provided faces the inside of the cover member 20.
[0055]
When the circuit board 61 is fixed to the boss 37 of the cover member 20, a pair of upper and lower connector covers 62 are interposed between the circuit board 61 and the cover member 20. The connector cover 62 is a frame-like member in which holes 63 corresponding to the shapes of connectors of a connector group (not shown) provided on the circuit board 61 are formed. When the circuit board 61 is fixed to the cover member 20, the connector cover 62 The group is exposed from the cover member 20 through the hole 63 and the connector window 26a.
[0056]
Next, the base member 10 will be described.
The base member 10 is vertically and horizontally symmetrical, and as shown in the rear view of FIG. 3B, the base member 10 is provided on the left and right side surfaces of the open box-like main body 11 at equal intervals in the vertical direction and outward. A plate-like side wall member 13 extending in parallel with the side surface of the main body 11 is provided via a plurality of extending reinforcing ribs 12. A cylindrical member (second cylindrical member) is formed by a support rib 14 extending from the side surface of the main body 11 and a support rib 16 extending from the inner surface of the side wall member 13 in the space between the adjacent reinforcing ribs 12. 15 is supported. The cylindrical member 15 has a shape similar to that of the cylindrical member 25, and a total of eight cylindrical members 15 are provided on the base member 10 in a symmetrical manner. Further, as shown in FIGS. 2 and 5A, a check ring 17 is coaxially attached to the openings of the cylindrical members 15. The check ring 17 is for locking a check piece, which will be described later, of the fixing member 50. It consists of a cylindrical body that substantially coincides with the inner diameter. And the flange part 17a provided in the end is latched by the opening part of the cylindrical member 15. As shown in FIG. The check ring 17 is fixed with its flange portion 17 a bonded to the tubular member 15. And when the cover member 20 superposes | stacks, as shown in FIG. 5, the cylindrical member 25 and the cylindrical member 15 are comprised so that it may arrange | position coaxially.
[0057]
6A is a cross-sectional view taken along the line BB of FIG. 1 and FIG. 6B is an exploded view thereof. From the upper and lower side wall portions 11a of the main body 11, the four members of the cover member 20 are connected. Four hook-shaped engaging portions 18 that can be engaged with the joint portions 31 are provided so as to protrude toward the cover member 20 (see FIGS. 2 and 3B). The engaging portion 18 extends leftward and rightward along the side wall portion 11a and extends to the cover member 20 side, and extends inward from one end in the left-right direction of the protruding portion 18a and toward the cover member 20 side. It has a shape in which a rectangular small piece portion 18c having two sides of the end edges of both protruding portions is connected to the tip of the extending protruding portion 18b. The small piece portion 18c is formed in a size that can be inserted into the opening portion 32 on the cover member 20 side, and protrudes when the engagement portion 18 slides along the engagement portion 31 on the cover member 20 side. The part 18b is brought into contact with and locked to the end edge of the engaging part 31.
[0058]
Further, a protective rib 19 extending in the left-right direction is provided on the cover member 20 side so as to face the four engaging portions 18 at a position inside the side wall portion 11a of the main body 11, and FIG. When the cover member 20 is assembled to the base member 10 as in a), the side wall portion 27 of the cover member 20 is supported while being sandwiched between the engaging portion 18 and the protective rib 19. . Further, the cover member 20 and the base member 10 are fixed in such a manner that the engagement portion 18 of the cover member 20 is sandwiched between the guide member 29 and the engagement portion 31 extending from the cover side wall portion 27. Yes. For this reason, an illegal act such as a third party pushing the side wall portion 27 inward from the outside to remove the cover member 20 from the base member 10 is effectively prevented.
[0059]
Next, the fixing member 50 will be described.
As shown in FIG. 4, the fixing member 50 has a flange-like locking portion 52 formed at the upper end portion of a cylindrical main body 51 that is slightly reduced in diameter, and has a predetermined width along the axis from the center to the lower end. A slit 53 is formed. Therefore, the lower part of the fixing member 50 can be elastically deformed by a predetermined amount in the width direction of the slit 53. Further, a check piece 54 protruding in the outer diameter direction is provided at the lower end of the main body 51. The check piece 54 is formed in a tapered shape whose cross section increases from the lower end side of the fixing member 50 upward, and the lower end portion forms an insertion portion 54a and the upper end portion forms a locking portion 54b. Yes. Therefore, when the fixing member 50 is inserted into the predetermined hole, the insertion portion 54a is tapered, so that the fixing member 50 is smoothly introduced into the hole inlet. Inserts smoothly. When the check piece 54 penetrates the hole, the lower end portion of the fixing member 50 is elastically restored and the locking portion 54b is locked. Therefore, the fixing member 50 cannot be pulled out in the direction opposite to the insertion direction. It becomes.
[0060]
A one-way screw 56 is screwed into the upper end portion of the fixing member 50 via a washer 55. Since the outer diameter of the washer 55 is the same as the outer diameter of the upper end surface of the locking portion 52, the surface of the locking portion 52 of the fixing member 50 is covered with a metal member. It has become. As is well known, the one-way screw 56 is a screw configured to be rotatable only in the fastening direction, and once screwed into the locking portion 52, it can be reversed using a tool. It becomes extremely difficult.
[0061]
Then, the fixing member 50, like the leftmost fixing member 50 in FIG. 5, has its check piece 54 supported by the step portion 25a of the cylindrical member 25, and the locking portion 52 is the inner wall of the cylindrical portion 35b. Is temporarily held in a standby space formed between the covering member 35 and the tubular member 25. In the state where all the fixing members 50 arranged on the cover member 20 are held in the standby space, the cover member 20 is not fixed to the base member 10 and can be operated in the sliding direction. It is.
[0062]
Next, a method for sealing the substrate case 1 will be described.
When sealing the substrate case 1, first, the cover member 20 assembled with the circuit board 61 as described above is superposed on the base member 10. At this time, the small piece 18c of the base member 10 is brought into contact with the opening 32 of the cover member 20 and the engaging portion 18 is inserted. Then, the cover member 20 is slid with respect to the base member 10 in a direction in which the engaging portion 31 of the cover member 20 and the engaging portion 18 of the base member 10 are engaged.
[0063]
Then, the leading end of the engaging portion 31 is engaged with the engaging portion 18 of the base member 10 to be in a superposed state. From this state, a predetermined rod-like member is inserted into the small hole 35c of the cover member 20, and the above-described standby Any one of the fixed members 50 in the standby state is pressed in the space, and this is inserted into the communication hole 58 formed by the cylindrical member 25 and the cylindrical member 15. Then, like the second fixing member 50 from the left in FIG. 5, the fixing member 50 is inserted into the communication hole 58 formed by the small diameter portion 25 b of the cylindrical member 25 and the inside of the check ring 17. At this time, the check piece 54 of the fixing member 50 is locked to the end surface of the check ring 17, and the locking portion 52 is locked to the step portion 25 a of the cylindrical member 25. These are fixed to each other so as to sandwich the cover member 20, and the substrate case 1 is sealed. At this time, since the fixing member 50 is loosely fitted into the communication hole 58, the fixing member 50 can rotate around its own axis.
[0064]
In this sealing operation, since a pair (two) of the fixing members 50 arranged in the left and right (a total of eight) are used symmetrically, a pair (two) arranged symmetrically is used. In total, including the time of shipment of the pachinko machine, four times of sealing is possible.
When releasing the sealing state, the support rib 24 of the cylindrical member 25 and the support ribs 14 and 16 of the cylindrical member 15 that hold the fixing member 50 used at this time are cut with a tool such as a nipper. The cover member 20 can be detached from the base member 10 if the above-described operation is reversed.
[0065]
The substrate case 1 thus sealed is mounted on the back side of the board surface of the pachinko machine via a metal plate 70 for electromagnetic wave shielding (for preventing fraud).
As described above, in the substrate case 1 of the present embodiment, the exposed portion of the locking portion of the fixing member 50 is protected by the one-way screw 56 made of a metal material, so that it is extremely difficult to destroy it. . Further, since the fixing member 50 is loosely fitted to the communication hole 58 formed by the cylindrical member 25 and the cylindrical member 15 so as to be rotatable around its own axis, the one-way screw 56 is attached by using a special tool. Even if it is attempted to reverse, the fixing member 50 to which the one-way screw 56 is fixed turns about its own axis, so that the one-way screw 56 can be turned in the reverse direction with respect to the fixing member 50 after all. This cannot be removed.
[0066]
For this reason, it becomes extremely difficult for a third party to release the sealing state of the substrate case 1 by destroying the fixing member 50, and the illegal act can be effectively prevented.
The cover member 20 and the base member 10 are formed of a transparent resin material, and the cylindrical member 15 and the cylindrical member 25 are both extended inward (in the direction of the storage space) from the side wall member provided on the outer side. Since the support ribs 24 and 16 are continuously provided, even if the support ribs are skillfully cut by an improper act and then carefully repaired with an adhesive or the like, the support ribs 24 can be seen from the side of the side wall member. Or it can be easily found by observing 16 changes.
[0067]
As mentioned above, although the Example of this invention was described, it cannot be overemphasized that embodiment of this invention can take various forms, as long as it belongs to the technical scope of this invention, without being limited to the said Example at all. Nor.
For example, in the above embodiment, the one-way screw 56 is attached to the head of the fixing member 50, but a simple metal plate is used instead of the one-way screw 56 and this is bonded to the surface of the locking portion of the fixing member 50. May be. Or it is good also as a structure which forms the groove | channel for fitting previously in the head of the fixing member 50 containing a latching | locking part, and press-fits the fitting part protrudingly provided in the metal piece.
[Brief description of the drawings]
FIG. 1 is a perspective view of a board case of a gaming machine according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the substrate case of the embodiment.
FIG. 3 is a rear view of a cover member and a base member constituting the substrate case of the embodiment.
FIG. 4 is an explanatory diagram illustrating a fixing member according to an embodiment.
FIG. 5 is an explanatory diagram showing a sealing structure of a substrate case.
FIG. 6 is an explanatory view showing an assembly structure of a cover member and a base member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Board case, 10 ... Base member, 12 ... Reinforcement rib,
13 ... side wall member, 14, 16 ... support rib, 15 ... cylindrical member,
20 ... cover member, 22 ... reinforcing rib, 23 ... side wall member,
24 ... support ribs, 25 ... cylindrical members, 35 ... covering members,
35c ... small hole, 50 ... fixing member, 56 ... one-way screw

Claims

A base member fixed to the gaming machine;
A cover member assembled to the base member and forming a predetermined storage space with the base member;
A fixing member that is attached to the two members in a state in which the base member and the cover member are polymerized, and that fixes the two members in a non-removable manner;
In a board case of a gaming machine that seals a circuit board on which electronic components for controlling a gaming machine are mounted in the storage space by attaching the fixing member to both the members,
The fixing member is formed of a resin material, and at least a portion exposed to the cover member side is equipped with a protective member made of a metal material ,
The fixing member has a check piece at one end of a shaft-shaped main body and a flange-like locking portion at the other end, and is connected to a communication hole that communicates the cover member when the cover member is assembled to the base member. Inserted in the direction, the base member and the cover member are fixed to each other by the locking portion and the check piece,
The communication hole is formed by coaxially communicating a circular hole provided in the cover member and a circular hole provided in the base member,
A board case for a gaming machine, wherein the fixing member has a substantially cylindrical shape and is loosely fitted to the communication hole so as to be rotatable about its own axis .

A base member fixed to the gaming machine;
A cover member assembled to the base member and forming a predetermined storage space with the base member;
A fixing member that is attached to the two members in a state in which the base member and the cover member are polymerized, and that fixes the two members in a non-removable manner;
In a board case of a gaming machine that seals a circuit board on which electronic components for controlling a gaming machine are mounted in the storage space by attaching the fixing member to both the members,
The fixing member is formed of a resin material, and at least a portion exposed to the cover member side is equipped with a protective member made of a metal material,
The fixing member includes a check piece and a slit along the axis of the main body at one end of the shaft-shaped main body, a flange-shaped locking portion at the other end, and the cover member is assembled to the base member. When inserted in one direction into the communication hole that communicates these, the base member and the cover member are fixed to each other by the locking portion and the check piece,
The one end of the fixing member is elastically deformable in the width direction of the slit by the slit,
The check piece can be introduced into the communication hole by elastic deformation of the one end, and when the check piece penetrates the communication hole, it spreads outward by elastic return of the one end and cannot be pulled out in the reverse direction.
A gaming machine board case.