JP4038785B2

JP4038785B2 - Pachinko machine board case

Info

Publication number: JP4038785B2
Application number: JP29867298A
Authority: JP
Inventors: 神酒男武藤
Original assignee: 奥村遊機株式會社
Priority date: 1998-10-20
Filing date: 1998-10-20
Publication date: 2008-01-30
Anticipated expiration: 2018-10-20
Also published as: JP2000116912A

Description

【０００１】
【発明の属する技術分野】
本発明は、パチンコ機の基板ケースに関し、特に、カバー部材のシャーシへの取り付けを各シャーシ及びカバー部材の取付孔内に嵌挿された係止部材による係止によって封止することにより、該封止を非破壊で解除することができないため、基板ケース内の回路基板への不正行為を確実に検出することが可能なパチンコ機の基板ケースに関するものである。
【０００２】
【従来の技術】
近年のパチンコ機においては、回路基板の一つであって、パチンコ機のゲーム内容が書き込まれたＲＯＭを実装したメイン基板が、搭載されている。従って、パチンコ機のゲーム内容が不正に変更されることを防止するために、かかるＲＯＭを実装したメイン基板に対し、種々の封止構造が施されている。
本従来例として、この封止構造の一例について図１１乃至図１４に基づいて説明する。先ず、この封止構造の概略構成について図１１及び図１２に基づいて説明する。図１１は従来例に係るパチンコ機の回路基板の封止構造を示した分解斜視図である。図１２は従来例に係るパチンコ機の図１１の矢視Ｐから見た図であって、第１突片部、第２突片部、ねじの一部については、断面で示したものである。
図１１に示すように、パチンコ機の回路基板の封止構造は、メイン基板１０１をシャーシ１０２及びカバー１０３で封止するものであるが、以下に述べる工夫が施されている。
【０００３】
すなわち、メイン基板１０１が固定されたシャーシ１０２には、８個の第１突片部１０４が突き出されて設けられており、さらに、第１突片部１０４の各々には、第１取付孔１０５が設けられている。また、メイン基板１０１を覆うカバー１０３には、８個の第２突片部１０６が突き出されて設けてられている。
【０００４】
かかる第２突片部１０６は、図１２に示すように、カバー１０３がシャーシ１０２に対して定まった位置に置かれた際において、第１突片部１０４の各々と接触した状態になるものである。さらに、第２突片部１０６の各々には、第２取付孔１０７が設けられている。かかる第２取付孔１０７は、図１２に示すように、カバー１０３がシャーシ１０２に対して定まった位置に置かれた際において、第１取付孔１０５の各々に対し、直列に連続して位置するものである。また、第２取付孔１０７の各々には、一方向にしか進まない螺子１０８が仮止めされてある。尚、図１２は、図１１の矢視Ｐから見たものであって、２組の第１突片部１０４、第２突片部１０６、螺子１０８については、断面で示してある。
【０００５】
次に、本従来例における封止の一例を図１３に基づいて説明する。図１３は本従来例に係るパチンコ機のメイン基板をシャーシ及びカバーで封止した際における一例を示した断面図である。
図１３に示すように、カバー１０３がシャーシ１０２に対して定まった位置に置かれた際において、第２取付孔１０７及び第１取付孔１０５に右端（図１３中、右側）の螺子１０８をねじ込むと、カバー１０３はシャーシ１０２に対して定まった位置に固定されるので、メイン基板１０１をシャーシ１０２及びカバー１０３で封止することができる。また、螺子１０８は、一方向にしか進まないものであるから、第２取付孔１０６及び第１取付孔１０５に一旦ねじ込まれると、第２取付孔１０６及び第１取付孔１０５から取り外すことはできなくなる。これにより、カバー１０３をシャーシ１０２から離間させることができなくなるので、メイン基板１０１への不正行為を防止することができる。
【０００６】
尚、本従来例では、メイン基板１０１に対する封止を効果的にするため、８個の第１突片部１０４及び８個の第２突片部１０６を、図１１に示すように、対角する場所に４個ずつ分けて設けている。そして、対角する場所に仮止めされた一対の螺子１０８をねじ込むことにより、メイン基板１０１に対する封止を効果的に行うことができる。
【０００７】
次に、本従来例における封止の解除の一例を図１４に基づいて説明する。図１４は本従来例に係るパチンコ機の回路基板に対する封止を解除した際の一例を示した平面図である。
図１４に示すように、螺子１０８がねじ込まれた対角に位置する一対の第１取付孔１０５を設けた第１突片部１０４と第２取付孔１０７を設けた第２突片部１０６とを、シャーシ１０２及びカバー１０３から切り欠くと、カバー１０３をシャーシ１０２から離間させることが可能となり、これにより、メイン基板１０１に対する封止を解除することができる。
【０００８】
さらに、その後、カバー１０３をシャーシ１０２に対して定まった位置に置き、シャーシ１０２及びカバー１０３から未だ切り欠けられていない第１突片部１０４と第２突片部１０６において、対角する場所に仮止めされた一対の螺子１０８をねじ込めば、メイン基板１０１に対する封止を再び行うことができる。尚、ここでは、上述したように、メイン基板１０１に対する確実な封止のために、対角する場所に仮止めされた一対の螺子１０８を使用するので、メイン基板１０１に対する封止及びその解除を、４回繰り返して行うことができる。
【０００９】
従って、封止中のメイン基板１０１に対する検査のために、かかる封止を解除しても、メイン基板１０１を再び封止することができる。さらに、第１突片部１０４と第２突片部１０６の切欠痕により、メイン基板１０１に対する封止の解除の形跡を残すことができるので、封止の解除の記録と照らし合わせれば、以前の封止の解除が、検査のためのものであるか、それとも、不正行為によるものであるかを識別することができる。
【００１０】
【発明が解決しようとする課題】
しかしながら、第２取付孔１０７にねじ込められた螺子１０８は、外部から自由に接触することができるので、不正に外されるおそれがあるという問題がある。また、螺子１０８を第１取付孔１０５にねじ込むトルク管理が難しく、作業性が低下するという問題がある。
【００１１】
そこで、本発明は、上述した問題点を解決するためになされたものであり、回路基板に対する封止部分に封止後自由に接触することを防止し、該封止が不正に外されることをより効果的に防止することが可能となると共に、該封止を容易に行うことができて作業性の向上を図ることが可能なパチンコ機の基板ケース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】
前記目的を達成するため請求項１に係るパチンコ機の基板ケースは、パチンコ機の動作状態を制御する回路基板と、前記回路基板が定設されるシャーシと、前記シャーシとほぼ同じ大きさであって、前記回路基板を覆うように取り付けられる箱状のカバー部材と、前記カバー部材の前記シャーシへの取り付けを封止する封止手段とを備えたパチンコ機の基板ケースにおいて、前記シャーシに突設された複数の第１突片部と、前記カバー部材の前記第１突片部の各々に対向する位置に突設される複数の第２突片部とを備え、前記封止手段は、一端部に係止突起が形成された係止部材と、前記シャーシの前記第１突片部の各々に形成されて、前記係止部材が一端側から嵌挿される少なくとも１つの所定深さの第１取付孔と、前記カバー部材の前記第２突片部の各々において、該第１取付孔の対向する位置に形成されて、前記係止部材が一端側から嵌挿される所定深さの第２取付孔と、前記第１取付孔又は第２取付孔のうちの一方の内側に形成されて、前記係止部材の係止突起が係合される凹部と、を有し、前記凹部が形成された第１取付孔又は第２取付孔は、外側端面部が塞がれており、該凹部が形成されていない第１取付孔又は第２取付孔は、外側端面部が開放されており、前記凹部が形成されていない第１取付孔又は第２取付孔は、内側端面部に形成されて、前記係止部材に当接する当接部を有し、前記凹部が形成された第１取付孔又は第２取付孔は、内側底面の中心位置に前記当接部の上端面と同じ高さ位置まで垂設される取付ボスを有し、前記係止部材は、前記当接部に当接する板部材と、前記板部材の該当接部に当接する側の面に垂設されると共に、前記係止突起が端部に形成される複数の弾性係止片とを有し、前記係止部材は、該凹部が形成されていない第１取付孔又は第２取付孔の外側端面部から前記板部材が前記当接部と前記取付ボスとに当接するように第１取付孔及び第２取付孔内に嵌挿されて、前記係止突起が凹部に係合されることによって、この第１取付孔及び第２取付孔が連結され、前記カバー部材の前記シャーシへの取り付けが封止され、前記係止部材が嵌挿された第１取付孔及び第２取付孔が形成された前記第１突片部及び第２突片部を前記シャーシ及び前記カバー部材から切り欠くことにより、前記封止手段による封止が解除されることを特徴とする。
【００１３】
このような特徴を有する請求項１に係るパチンコ機の基板ケースにおいては、回路基板が定設されたシャーシとこの回路基板を覆うように取り付けられるカバー部材との封止手段は、シャーシに突設された複数の第１突片部の各々に形成された所定深さの第１取付孔と、カバー部材の第１突片部の各々に対向する位置に突設される複数の第２突片部の各々に形成された所定深さの第２取付孔と、この第１取付孔及び第２取付孔の内側に一端側から嵌挿される係止部材とから構成される。また、この係止部材の端部には係止突起が形成され、前記第１取付孔及び第２取付孔のうちの一方の内側の該係止突起に対向する位置には凹部が形成されている。更に、前記凹部が形成される第１取付孔又は第２取付孔の他端側は、塞がれており、該凹部が形成されていない第１取付孔又は第２取付孔は、外側端面部が開放されている。また、凹部が形成されていない第１取付孔又は第２取付孔は、係止部材に当接する当接部が内側端面部に形成されている。また、凹部が形成された第１取付孔又は第２取付孔は、内側底面の中心位置に、取付ボスが当接部の上端面と同じ高さ位置まで垂設されている。また、係止部材は、該当接部に当接する板部材と、この当接側の面には、端部に係止突起が形成された複数の弾性係止片が垂設されている。そして、該係止部材は、外側端面部が塞がれていない第１取付孔又は第２取付孔の外側端面部から板部材が当接部と取付ボスとに当接するように第１取付孔又は第２取付孔内に嵌挿されて、該係止部材の係止突起が外側端面部が塞がれた第１取付孔又は第２取付孔に形成される該凹部に係止されることにより、この第１取付孔及び第２取付孔が連結され、前記カバー部材の前記シャーシへの取り付けが封止される。
これにより、係止部材の板部材を第１取付孔又は第２取付孔の一方の内側端面部に形成された当接部と他方の内側底面の中心位置に垂設された取付ボスとに当接するまで、嵌挿することにより各係止突起が凹部と係合して封止を行うことができるため、この封止を容易に行うことができて作業性の向上を図ることが可能となる。また、凹部が形成される第１取付孔又は第２取付孔の外側端面部は、塞がれているため、封止後この係止部材の係止突起部分に自由に接触することを防止することができ、この封止が不正に外されることを効果的に防止することが可能となる。
また、係止部材が嵌挿された第１取付孔及び第２取付孔が形成された第１突片部及び第２突片部をシャーシ及びカバー部材から切り欠くことにより、封止手段による封止が解除される。
これにより、係止部材が嵌挿された第１突片部及び第２突片部をシャーシ及びカバー部材から切り欠くことにより、封止手段による封止が解除されて、該カバー部材をシャーシから取り外すことが可能になる。また、未だ切り欠けられていない第１突片部及び第２突片部において、これらの内側に係止部材を嵌挿することにより、カバー部材のシャーシへの取り付けを再度、封止することが可能となる。
【００１４】
【００１５】
【００１６】
【００１７】
【００１８】
【００１９】
【００２０】
【００２１】
【００２２】
【００２３】
【００２４】
【００２５】
【００２６】
【００２７】
【００２８】
【発明の実施の形態】
以下、本発明に係るパチンコ機の基板ケースをメイン基板の基板ケースについて具体化した第１乃至第３実施の形態を図面を参照して詳細に説明する。
最初に、第１実施形態に係るパチンコ機の基板ケースについて図１乃至図３に基づいて説明する。先ず、第１実施形態に係るパチンコ機の基板ケースの全体構成について図１に基づき説明する。図１は第１実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
図１に示すように、基板ケース１は、回路基板であるメイン基板２、このメイン基板２が固定されたシャーシ３、及びメイン基板２を覆うポリカーボネート樹脂等の合成樹脂により形成された透明なカバー部材４から構成されている。尚、このメイン基板２には、パチンコ機の賞球払い出し制御等を制御する制御回路が構成されている。
【００２９】
また、シャーシ３の上下端縁部（図１中、左右端縁部）には、４個ずつ第１突片部５Ａ、５Ｂ、５Ｃ、５Ｄ、及び６Ａ、６Ｂ、６Ｃ、６Ｄが、各々対称な位置に突き出されて設けられている。この各第１突片部５Ａ〜５Ｄ、６Ａ〜６Ｄの側面の中心軸に対して対称な位置の２カ所には、後述の係止孔７（図２参照）が形成されている。また、カバー部材４の開放側上下端縁部の前記各第１突片部５Ａ〜５Ｄ、６Ａ〜６Ｄに対向する位置には、４個ずつ第２突片部８Ａ、８Ｂ、８Ｃ、８Ｄ、及び９Ａ、９Ｂ、９Ｃ、９Ｄが、各々突き出されて設けられている。
【００３０】
また、各第２突片部８Ａ、９Ａには、後述のように茶色の合成樹脂製の各係止部材１０、１２（図２参照）が上側から嵌挿される。さらに、各係止部材１０、１２の上側から一方向にしか進まない各螺子（いわゆるワン・ウェイビス）１１、１３が後述のようにねじ込まれて、カバー部材４のシャーシ３への取り付けが封止される（図３参照）。
【００３１】
次に、各第１突片部５Ａ〜５Ｄ、６Ａ〜６Ｄ、各第２突片部８Ａ〜８Ｄ、９Ａ〜９Ｄ、各係止部材１０、１２、及び螺子１１、１３の構成について図２に基づいて説明する。尚、各第１突片部５Ａ〜５Ｄ、各第２突片部８Ａ〜８Ｄ、係止部材１０、及び螺子１１と、各第１突片部６Ａ〜６Ｄ、各第２突片部９Ａ〜９Ｄ、係止部材１２、及び螺子１３とは、ほぼ同じ構成であるので、各第１突片部５Ａ〜５Ｄ、各第２突片部８Ａ〜８Ｄ、係止部材１０、及び螺子１１の構成について説明する。図２は第１実施形態に係る基板ケース１の各第１突片部５Ａ〜５Ｄ、各第２突片部８Ａ〜８Ｄ、係止部材１０、及び螺子１１を示す側断面図である。
【００３２】
先ず、シャーシ３から突設される各第１突片部５Ａ〜５Ｄは、図２に示すように、ほぼ同じ形状であり、略円筒状で下側端縁部が塞がれて、第１取付孔１５が形成されている。そして、その側面のほぼ半分の高さには中心軸に対して対称な位置に各係止孔７、７が穿設されている。また、底面のほぼ中心位置には取付ボス１６が上端面より少し低い高さで垂設されている。そして、この取付ボス１６の上端面には螺子１１がねじ込まれる所定深さのネジ孔１７が形成されている。
【００３３】
また、図２に示すように、カバー部材４の開放側の側端縁部から突設される各第２突片部８Ａ〜８Ｄは、ほぼ同じ形状であり、内径寸法が各第１突片部５Ａ〜５Ｄの外径寸法よりも少し大きい略円筒状に形成され、第２取付孔１９が形成されている。また、各第２突片部８Ａ〜８Ｄの内側の下側端面から所定高さの位置には、カバー部材４をシャーシ３に取り付けた場合に、各第１突片部５Ａ〜５Ｄの上端面に当接する当接部１８が内側にリブ状に突き出して設けられている。また、この各当接部１８の下面から各第２突片部８Ａ〜８Ｄの下面までの高さ寸法は、各第１突片部５Ａ〜５Ｄの上端面から各係止孔７までの高さ寸法よりも大きく形成されている。また、隣り合う各第２突片部８Ａ〜８Ｄは、梁部２０が架設されて、連結されている。
これにより、カバー部材４の開放側の側端縁部（図２中、左側側端縁部）に設けられたかぎ状の係止部２３をシャーシ３の係止口２４（図４参照）に係入させて取り付けた場合には、各第２突片部８Ａ〜８Ｄは、各第１突片部５Ａ〜５Ｄの係止孔７の外側を覆うように該各第１突片部５Ａ〜５Ｄの上側に嵌められる。
【００３４】
また、図２に示すように、第２突片部８Ａに嵌挿される茶色の係止部材１０は、第２突片部８Ａの内径寸法よりも小さく、且つ当接部１８の内径寸法よりも大きい外径寸法の円板状の板部材１０Ａと、この板部材１０Ａの下面から垂設された２つの弾性係止片１０Ｂ、１０Ｂが設けられており、また、各弾性係止片１０Ｂ、１０Ｂの下端には各係止突起１０Ｃ、１０Ｃが形成されている。各係止突起１０Ｃ、１０Ｃは、後述するように第１突片部５Ａに形成された各係止孔７、７弾性的に係合され、これにより第２突片部８Ａの内部において、係止部材１０と第１突片部５Ａの連結が行われる（図３参照）。
また、係止部材１０の板部材１０Ａの下面の中心部には取付ボス１０Ｄが垂設され、この取付ボス１０Ｄの下面と板部材１０Ａの上面とを連通する貫通孔１０Ｅが形成されている。この貫通孔１０Ｅには、後述のように螺子１１が挿通される（図３参照）。また、取付ボス１０Ｄの板部材１０Ａの下面からの高さ寸法は、取付ボス１６の上端面から第１突片部８Ａの上端面までの高さ寸法にほぼ等しく形成されている。
【００３５】
次に、上記のように構成された各第１突片部５Ａ〜５Ｄ、各第２突片部８Ａ〜８Ｄ、係止部材１０、及び螺子１１の取り付けについて図３に基づいて説明する。図３は第１実施形態に係る基板ケース１の各第１突片部５Ａ〜５Ｄ、各第２突片部８Ａ〜８Ｄ、係止部材１０、及び螺子１１の取りつけ状態を示す側断面図である。
図３に示すように、先ず、カバー部材４の係止部２３をシャーシ３の係止口２４（図４参照）に係入させて、カバー部材４をシャーシ３に取り付ける。そして、係止部材１０の板部材１０Ａの下面が第２突片部８Ａの当接部１８に当接するまで、弾性係止片１０Ｂを第２突片部８Ａの第２取付孔１９を介して第１突片部５Ａの第１取付孔１５に嵌挿し、該弾性係止片１０Ｂの下端に形成されている各係止突起１０Ｃ、１０Ｃを各係止孔７、７に係合させる。これにより、第２突片部８Ａは、係止部材１０を介して第１突片部５Ａに連結される。続いて、螺子１１が板部材１０の貫通孔１０Ｅに挿入され、第１突片部５Ａのネジ孔１７にねじ込まれて、第２突片部８Ａと第１突片部５Ａとは係止部材１０を介して強固に連結される。
また、係止部材１０の貫通孔１０Ｅに螺子１１を挿通後、該係止部材１０と螺子１１を共に、第２突片部８Ａの第２取付孔１９に上側から嵌挿し、該螺子１１を第１突片部５Ａのネジ孔１７にねじ込むことにより、係止部材１０の板部材１０Ａの下面を第２突片部８Ａの当接部１８に当接させて、且つ、弾性係止片１０Ｂの下端に形成されている各係止突起１０Ｃ、１０Ｃを各係止孔７、７に係合させてもよい。これによっても、第２突片部８Ａと第１突片部５Ａとは係止部材１０を介して強固に連結される。
そして、透明な合成樹脂製のカバー部材４の第２突片部８Ａを介して茶色の係止部材１０を一見して確認することができる。
尚、各第１突片部６Ａ〜６Ｄ、各第２突片部９Ａ〜９Ｄ、係止部材１２、及び螺子１３も同様に取り付けられる。これにより、カバー部材４のシャーシ３への取り付けが封止される。
【００３６】
次に、カバー部材４のシャーシ３への取り付けの封止を解除する方法について図４に基づいて説明する。図４は第１実施形態に係る基板ケース１の封止を解除した際の一例を示す平面図である。
図４に示すように、第２突片部８Ａと第２突片部８Ｂとを連結する梁部２０を切欠き、また、第２突片部８Ａとカバー部材４との連結部分、及び第１突片部５Ａとシャーシ３との連結部分を切り欠くことにより、第１突片部５Ａ及び第２突片部８Ａを基板ケース１から取り除く。続いて、第２突片部９Ａと第２突片部９Ｂとを連結する梁部２０を切欠き、また、第２突片部９Ａとカバー部材４との連結部分、及び第１突片部６Ａとシャーシ３との連結部分を切り欠くことにより、第１突片部６Ａ及び第２突片部９Ａを基板ケース１から取り除く。これにより、カバー部材４のシャーシ３への取り付けの封止を解除することができる。
尚、その後に、カバー部材４をシャーシ３に取り付け、未だ切り欠けられていない各第１突片部５Ｂ、６Ｂと第２突片部８Ｂ、９Ｂとにおいて、別供給の係止部材１０、１２を嵌挿し、螺子１１、１３をねじ込むことにより、再度、カバー部材４のシャーシ３への取り付けの封止を行うことができる。即ち、第１実施形態に係る基板ケース１においては、カバー部材４のシャーシ３への取り付けの封止を４回行うことができる。
【００３７】
以上詳細に説明した通り第１実施形態に係るパチンコ機の基板ケース１では、カバー部材４の係止部２３をシャーシ３の係止口２４に係入させて、カバー部材４をシャーシ３に取り付ける。そして、各第１突片部５Ａ、６Ａの上側に嵌め被せられた各第２突片部８Ａ、９Ａの第２取付孔１９及び各第１突片部５Ａ、６Ａの第１取付孔１５に各係止部材１０、１２を嵌挿して、この各係止部材１０、１２の係止突起を第１突片部５Ａ、６Ａの係止孔７に係合させて該各第１突片部５Ａ、６Ａと各第２突片部８Ａ、９Ａとを連結させる。そして螺子１１、１３を各係止部材１０、１２の貫通孔に挿通して、第１突片部５Ａ、６Ａにねじ込み、カバー部材４のシャーシ３への取り付けを封止する。また、各第１突片部５Ａ、６Ａと各第２突片部８Ａ、９Ａをカバー部材４及びシャーシ３から切り欠くことにより、この封止を解除する。
【００３８】
したがって、封止後、各係止孔７は各第２突片部８Ａ〜８Ｄ、９Ａ〜９Ｄにより外側が覆われ、また、各第１突片部５Ａ〜５Ｄ、６Ａ〜６Ｄの下端部は塞がれているため、各係止部材１０、１２の各係止突起に自由に接触することを防止することができ、この封止を不正に外されることを効果的に防止することが可能となる。また、各係止部材１０、１２を前記第１取付孔１５及び第２取付孔１９の内側に嵌挿することにより封止を行うことができるため、この封止を容易に行うことができて作業性の向上を図ることが可能となる。また、各係止孔７の製作は、容易なため、製造コストダウンを図ることが可能となる。
また、各係止部材１０、１２は、各螺子１１、１３によりネジ止めされるため、より強固に係止部材１０、１２を固定することができ、この封止を不正に外されることをより効果的に防止することが可能となる。
また、各係止部材１０、１２が嵌挿された第１突片部５Ａ、６Ａ及び第２突片部８Ａ、９Ａをシャーシ３及びカバー部材４から切り欠くことにより、上記封止が解除されて、該カバー部材４をシャーシ３から取り外すことが可能になる。また、未だ切り欠けられていない各第１突片部５Ｂ〜５Ｄ、６Ｂ〜６Ｄ及び各第２突片部８Ｂ〜８Ｄ、９Ｂ〜９Ｄにおいて、これらの内側に係止部材を嵌挿することにより、カバー部材４のシャーシ３への取り付けを再度、封止することが可能となる。
また、各係止部材１０、１２は、透明な合成樹脂製のカバー部材４を介して見えるため、係止部材１０、１２による封止の確認を容易に、且つ効果的に行うことが可能となる。
また、各係止部材は１０、１２には、茶色が付されているため、各係止部材１０、１２による封止の確認をより容易に、且つより効果的に行うことが可能となる。
さらに、基板ケース１内にはメイン基板２が装着されるため、封止中のメイン基板２に対する検査等をより効果的に繰り返し行うことが可能となる。
【００３９】
次に、第２実施形態に係るパチンコ機の基板ケースについて図５乃至図７に基づいて説明する。先ず、第２実施形態に係るパチンコ機の基板ケースの全体構成について図５に基づき説明する。図５は第２実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
図５に示すように、第２実施形態に係る基板ケース３１は、第１実施形態に係る基板ケース１とほぼ同じ構成である。但し、上記メイン基板２が固定されたシャーシ３２、及びメイン基板２を覆うポリカーボネート樹脂等の合成樹脂により形成された透明なカバー部材３３から構成されている。
【００４０】
また、シャーシ３２の上下端縁部（図５中、左右端縁部）には、４個ずつ第１突片部３５Ａ、３５Ｂ、３５Ｃ、３５Ｄ、及び３６Ａ、３６Ｂ、３６Ｃ、３６Ｄが、各々対称な位置に突き出されて設けられている。この各第１突片部３５Ａ〜３５Ｄ、３６Ａ〜３６Ｄの側面の中心軸に対して対称な位置の２カ所には、後述の係止孔３７（図６参照）が形成されている。また、カバー部材３３の開放側上下端縁部の前記各第１突片部３５Ａ〜３５Ｄ、３６Ａ〜３６Ｄに対向する位置には、４個ずつ第２突片部３８Ａ、３８Ｂ、３８Ｃ、３８Ｄ、及び３９Ａ、３９Ｂ、３９Ｃ、３９Ｄが、各々突き出されて設けられている。
【００４１】
また、各第２突片部３８Ａ、３９Ａには、後述のように茶色の合成樹脂製の各係止部材４０、４１（図６参照）が上側から嵌挿されて、カバー部材３３のシャーシ３２への取り付けが封止される（図７参照）。
【００４２】
次に、各第１突片部３５Ａ〜３５Ｄ、３６Ａ〜３６Ｄ、各第２突片部３８Ａ〜３８Ｄ、３９Ａ〜３９Ｄ、及び各係止部材４０、４１の構成について図６に基づいて説明する。尚、各第１突片部３５Ａ〜３５Ｄ、各第２突片部３８Ａ〜３８Ｄ、及び係止部材４０と、各第１突片部３６Ａ〜３６Ｄ、各第２突片部３９Ａ〜３９Ｄ、及び係止部材４１とは、ほぼ同じ構成であるので、各第１突片部３５Ａ〜３５Ｄ、各第２突片部３８Ａ〜３８Ｄ、及び係止部材４０の構成について説明する。図６は第２実施形態に係る基板ケース３１の各第１突片部３５Ａ〜３５Ｄ、各第２突片部３８Ａ〜３８Ｄ、及び係止部材４０を示す側断面図である。
【００４３】
先ず、シャーシ３２から突設される各第１突片部３５Ａ〜３５Ｄは、図６に示すように、ほぼ同じ形状であり、略円筒状で下側端縁部が塞がれて、第１取付孔４５が形成されている。そして、その側面には中心軸に対して対称な位置に各係止孔３７、３７が穿設されている。また、底面のほぼ中心位置には取付ボス４６が後述の当接部４８の上端面とほぼ同じ高さ位置まで垂設されている。そして、この取付ボス４６の上端面には所定深さの孔が形成されている。
【００４４】
また、図６に示すように、カバー部材３３の開放側の側端縁部から突設される各第２突片部３８Ａ〜３８Ｄは、ほぼ同じ形状であり、内径寸法が各第１突片部３５Ａ〜３５Ｄの外径寸法よりも少し大きい略円筒状に形成され、第２取付孔４７が形成されている。また、各第２突片部３８Ａ〜３８Ｄの内側の下側端面から所定高さの位置には、カバー部材３３をシャーシ３２に取り付けた場合に、各第１突片部３５Ａ〜３５Ｄの上端面に当接する当接部４８が内側にリブ状に突き出して設けられている。また、この各当接部４８の下面から各第２突片部３８Ａ〜３８Ｄの下面までの高さ寸法は、各第１突片部３５Ａ〜３５Ｄの上端面から各係止孔３７までの高さ寸法よりも大きく形成されている。また、隣り合う各第２突片部３８Ａ〜３８Ｄは、梁部５０が架設されて、連結されている。
これにより、カバー部材３３の開放側の側端縁部（図６中、左側側端縁部）に設けられたかぎ状の係止部２３をシャーシ３２の係止口２４（図４参照）に係入させて取り付けた場合には、各第２突片部３８Ａ〜３８Ｄは、各第１突片部３５Ａ〜３５Ｄの係止孔３７の外側を覆うように該各第１突片部３５Ａ〜３５Ｄの上側に嵌められる。
【００４５】
また、図６に示すように、第２突片部３８Ａに嵌挿される茶色の係止部材４０は、第２突片部３８Ａの内径寸法よりも小さく、且つ当接部４８の内径寸法よりも大きい外径寸法の円板状の板部材４０Ａと、この板部材４０Ａの下面から垂設された２つの弾性係止片４０Ｂ、４０Ｂが設けられており、また、各弾性係止片４０Ｂ、４０Ｂの下端には各係止突起４０Ｃ、４０Ｃが形成されている。各係止突起４０Ｃ、４０Ｃは、後述するように第１突片部３５Ａに形成された各係止孔３７、３７に弾性的に係合され、これにより第２突片部３８Ａの内部において、係止部材４０と第１突片部３５Ａの連結が行われる（図７参照）。
【００４６】
次に、上記のように構成された各第１突片部３５Ａ〜３５Ｄ、各第２突片部３８Ａ〜３８Ｄ、及び係止部材４０の取り付けについて図７に基づいて説明する。図７は第２実施形態に係る基板ケース３１の各第１突片部３５Ａ〜３５Ｄ、各第２突片部３８Ａ〜３８Ｄ、及び係止部材４０の取りつけ状態を示す側断面図である。
図７に示すように、先ず、カバー部材３３の係止部２３をシャーシ３２の係止口２４（図４参照）に係入させて、カバー部材３３をシャーシ３２に取り付ける。そして、係止部材４０の板部材４０Ａの下面が第２突片部３８Ａの当接部４８及び第１突片部３５Ａの取付ボス４６の上端面に当接するまで、弾性係止片４０Ｂを第２突片部３８Ａの第２取付孔４７を介して第１突片部３５Ａの第１取付孔４５に嵌挿し、該弾性係止片４０Ｂの下端に形成されている各係止突起４０Ｃ、４０Ｃを各係止孔３７、３７に係合させる。これにより、第２突片部３８Ａは、係止部材４０を介して第１突片部３５Ａに連結される。また、透明な合成樹脂製のカバー部材３３の第２突片部３８Ａを介して茶色の係止部材４０を一見して確認することができる。
尚、各第１突片部３６Ａ〜３６Ｄ、各第２突片部３９Ａ〜３９Ｄ、及び係止部材４１も同様に取り付けられる。これにより、カバー部材３３のシャーシ３２への取り付けが封止される。
【００４７】
また、カバー部材３３のシャーシ３２への取り付けの封止を解除する方法は、上記第１実施形態とほぼ同じであり（図４参照）、第２突片部３８Ａと第２突片部３８Ｂとを連結する梁部５０を切欠き、また、第２突片部３８Ａとカバー部材３３との連結部分、及び第１突片部３５Ａとシャーシ３２との連結部分を切り欠くことにより、第１突片部３５Ａ及び第２突片部３８Ａを基板ケース３１から取り除く。続いて、第２突片部３９Ａと第２突片部３９Ｂとを連結する梁部５０を切欠き、また、第２突片部３９Ａとカバー部材３３との連結部分、及び第１突片部３６Ａとシャーシ３２との連結部分を切り欠くことにより、第１突片部３６Ａ及び第２突片部３９Ａを基板ケース３１から取り除く。これにより、カバー部材３３のシャーシ３２への取り付けの封止を解除することができる。
尚、その後に、カバー部材３３をシャーシ３２に取り付け、未だ切り欠けられていない各第１突片部３５Ｂ、３６Ｂと第２突片部３８Ｂ、３９Ｂとにおいて、別供給の係止部材４０、４１を嵌挿することにより、再度、カバー部材３３のシャーシ３２への取り付けの封止を行うことができる。即ち、第２実施形態に係る基板ケース３１においては、カバー部材３３のシャーシ３２への取り付けの封止を４回行うことができる。
【００４８】
以上詳細に説明した通り第２実施形態に係るパチンコ機の基板ケース３１では、カバー部材３３の係止部２３をシャーシ３２の係止口２４に係入させて、カバー部材３３をシャーシ３２に取り付ける。そして、各第１突片部３５Ａ、３６Ａの上側に嵌め被せられた各第２突片部３８Ａ、３９Ａの第２取付孔４７及び各第１突片部３５Ａ、３６Ａの第１取付孔４５に各係止部材４０、４１を嵌挿して、この各係止部材４０、４１の係止突起を第１突片部３５Ａ、３６Ａの係止孔３７に係合させて該各第１突片部３５Ａ、３６Ａと各第２突片部３８Ａ、３９Ａとを連結させ、カバー部材３３のシャーシ３２への取り付けを封止する。また、各第１突片部３５Ａ、３６Ａと各第２突片部３８Ａ、３９Ａをカバー部材３３及びシャーシ３２から切り欠くことにより、この封止を解除する。
【００４９】
したがって、封止後、各係止孔３７は各第２突片部３８Ａ〜３８Ｄ、３９Ａ〜３９Ｄにより外側が覆われ、また、各第１突片部３５Ａ〜３５Ｄ、３６Ａ〜３６Ｄの下端部は塞がれているため、各係止部材４０、４１の各係止突起に自由に接触することを防止することができ、この封止を不正に外されることを効果的に防止することが可能となる。また、各係止部材４０、４１を上記第１取付孔４５及び第２取付孔４７の内側に嵌挿することにより封止を行うことができるため、この封止を容易に行うことができて作業性の向上を図ることが可能となる。また、各係止孔３７の製作は、容易なため、製造コストダウンを図ることが可能となる。
また、各係止部材４０、４１が嵌挿された第１突片部３５Ａ、３６Ａ及び第２突片部３８Ａ、３９Ａをシャーシ３２及びカバー部材３３から切り欠くことにより、上記封止が解除されて、該カバー部材３３をシャーシ３２から取り外すことが可能になる。また、未だ切り欠けられていない各第１突片部３５Ｂ〜３５Ｄ、３６Ｂ〜３６Ｄ及び各第２突片部３８Ｂ〜３８Ｄ、３９Ｂ〜３９Ｄにおいて、これらの内側に係止部材４０、４１を嵌挿することにより、カバー部材３３のシャーシ３２への取り付けを再度、封止することが可能となる。
また、各係止部材４０、４１は、透明な合成樹脂製のカバー部材３３を介して見えるため、係止部材４０、４１による封止の確認を容易に、且つ確実に行うことが可能となる。
また、各係止部材は４０、４１には、茶色が付されているため、各係止部材４０、４１による封止の確認をより容易に、且つより効果的に行うことが可能となる。
さらに、基板ケース３１内にはメイン基板２が装着されるため、封止中のメイン基板２に対する検査等をより効果的に繰り返し行うことが可能となる。
【００５０】
次に、第３実施形態に係るパチンコ機の基板ケースについて図８乃至図１０に基づいて説明する。先ず、第３実施形態に係るパチンコ機の基板ケースの全体構成について図８に基づき説明する。図８は第３実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
図８に示すように、第３実施形態に係る基板ケース６１は、第１実施形態に係る基板ケース１とほぼ同じ構成である。但し、上記メイン基板２が固定されたシャーシ６２、及びメイン基板２を覆うポリカーボネート樹脂等の合成樹脂により形成された透明なカバー部材６３から構成されている。
【００５１】
また、シャーシ６２の上下端縁部（図８中、左右端縁部）には、４個ずつ後述の第１突片部６５Ａ、６５Ｂ、６５Ｃ、６５Ｄ、及び６６Ａ、６６Ｂ、６６Ｃ、６６Ｄが、各々対称な位置に突き出されて設けられている（図９参照）。また、カバー部材６３の開放側上下端縁部の前記各第１突片部６５Ａ〜６５Ｄ、６６Ａ〜６６Ｄに対向する位置には、４個ずつ第２突片部６８Ａ、６８Ｂ、６８Ｃ、６８Ｄ、及び６９Ａ、６９Ｂ、６９Ｃ、６９Ｄが、各々突き出されて設けられている。
【００５２】
また、各第２突片部６８Ａ、６９Ａには、後述のように茶色の合成樹脂製の各係止部材７０、７１（図９参照）が上側から嵌挿されて、カバー部材６３のシャーシ６２への取り付けが封止される（図１０参照）。
【００５３】
次に、各第１突片部６５Ａ〜６５Ｄ、６６Ａ〜６６Ｄ、各第２突片部６８Ａ〜６８Ｄ、６９Ａ〜６９Ｄ、及び各係止部材７０、７１の構成について図９に基づいて説明する。尚、各第１突片部６５Ａ〜６５Ｄ、６６Ａ〜６６Ｄの構成はほぼ同じ構成であり、また、各第２突片部６８Ａ〜６８Ｄ、６９Ａ〜６９Ｄの構成はほぼ同じ構成であり、さらに、各係止部材７０、７１の構成はほぼ同じ構成であるため、第１突片部６５Ａ、第２突片部６８Ａ、及び係止部材７０の構成について図９に基づいて説明する。図９は第３実施形態に係る基板ケース６１の第１突片部６５Ａ、第２突片部６８Ａ、及び係止部材７０を示す要部を拡大した側断面図であって、上下に間隔をあけて示したものある。
【００５４】
先ず、シャーシ６２から突設される第１突片部６５Ａは、図９に示すように、略円筒状で下側端縁部が塞がれており、第１取付孔７４が形成されている。また、第１突片部６５Ａは、内側の底面から少し上の位置にリング状にくぼんだ所定深さの凹部７３が内周面に形成されている。この凹部７３は、後述のように係止部材７０の係止突起７０Ｃと係合するものである（図１０参照）。
【００５５】
また、図９に示すように、カバー部材６３の開放側の側端縁部から突設される第２突片部６８Ａは、第１突片部６５Ａとほぼ等しい外径寸法と内径寸法の略円筒状で上側端縁部が塞がれており、第２取付孔７５が形成されている。また、第２突片部６８Ａは、内側の天井面から少し下の位置にリング状にくぼんだ所定深さの凹部７６が内周面に形成されている。この凹部７６は、後述のように係止部材７０の係止突起７０Ｃと係合するものである（図１０参照）。また、隣り合う各第２突片部６８Ａ〜６８Ｄ、及び６９Ａ〜６９Ｄは、梁部８０が架設されて、連結されている。
【００５６】
また、図９に示すように、第１突片部６５Ａ及び第２突片部６８Ａ内に嵌挿される茶色の係止部材７０は、第１取付孔７４及び第２取付孔７５の内径寸法よりも少し小さい外径寸法の円板状の板部材７０Ａと、この板部材７０Ａの上下面の周端縁部から各々２つずつ垂設された弾性係止片７０Ｂ、７０Ｂ、７０Ｂ、７０Ｂが設けられており、また、各弾性係止片７０Ｂ、７０Ｂ、７０Ｂ、７０Ｂの端部には各係止突起７０Ｃ、７０Ｃ、７０Ｃ、７０Ｃが形成されている。各係止突起７０Ｃ、７０Ｃ、７０Ｃ、７０Ｃは、後述するように各凹部７３、７６に弾性的に係合され、これにより第１突片部６５Ａと第２突片部６８Ａとの連結が行われる。
【００５７】
次に、上記のように構成された第１突片部６５Ａ、第２突片部６８Ａ、及び係止部材７０の取り付けについて図１０に基づいて説明する。図１０は第３実施形態に係る基板ケース６１の第１突片部６５Ａ、第２突片部６８Ａ、及び係止部材７０の取り付け状態を示す側断面図である。
先ず、カバー部材６３の係止部２３をシャーシ６２の係止口２４（図４参照）に係入させて、カバー部材６３の一側端縁部をシャーシ６２に取り付ける。そして、第１突片部６５Ａ及び第２突片部６８Ａ側の側端縁部に、係止部材７０を縦に挿入できる程度の隙間を設ける。そして、係止部材７０の下側の各係止突起７０Ｃ、７０Ｃを第１突片部６５Ａの第１取付孔７４の上端縁部に当接する。続いて、係止部材７０の上側の各係止突起７０Ｃ、７０Ｃを第２突片部６８Ａの第２取付孔７５の下端縁部に当接する。そして、第１突片部６５Ａの上端面と第２突片部６８Ａの下端面とを当接させる（図９の、各矢印Ａ、Ｂ方向に押さえ込む）。これにより、係止部材７０の各係止突起７０Ｃ、７０Ｃ、７０Ｃ、７０Ｃが各凹部７３、７６に係合し、第１突片部６５Ａと第２突片部６８Ａとは係止部材７０を介して連結される。また、透明な合成樹脂製のカバー部材６３の第２突片部６８Ａを介して茶色の係止部材７０を一見して確認することができる。
尚、第１突片部６６Ａ、第２突片部６９Ａ、及び係止部材７１も同様に取り付けられる。これにより、カバー部材６３のシャーシ６２への取り付けが封止される。
【００５８】
また、カバー部材６３のシャーシ６２への取り付けの封止を解除する方法は、上記第１実施形態とほぼ同じであり（図４参照）、第２突片部６８Ａと第２突片部６８Ｂとを連結する梁部８０を切欠き、また、第２突片部６８Ａとカバー部材６３との連結部分、及び第１突片部６５Ａとシャーシ６２との連結部分を切り欠くことにより、第１突片部６５Ａ及び第２突片部６８Ａを基板ケース６１から取り除く。続いて、第２突片部６９Ａと第２突片部６９Ｂとを連結する梁部８０を切欠き、また、第２突片部６９Ａとカバー部材６３との連結部分、及び第１突片部６６Ａとシャーシ６２との連結部分を切り欠くことにより、第１突片部６６Ａ及び第２突片部６９Ａを基板ケース６１から取り除く。これにより、カバー部材６３のシャーシ６２への取り付けの封止を解除することができる。
尚、その後に、カバー部材６３をシャーシ６２に取り付け、未だ切り欠けられていない各第１突片部６５Ｂ、６６Ｂと第２突片部６８Ｂ、６９Ｂとにおいて、別供給の係止部材７０、７１を内側に挟み込むことにより、再度、カバー部材６３のシャーシ６２への取り付けの封止を行うことができる。即ち、第３実施形態に係る基板ケース６１においては、カバー部材６３のシャーシ６２への取り付けの封止を４回行うことができる。
【００５９】
以上詳細に説明した通り第３実施形態に係るパチンコ機の基板ケース６１では、カバー部材６３の係止部２３をシャーシ６２の係止口２４に係入させて、カバー部材６３をシャーシ６２に取り付ける。そして、第１突片部６５Ａ及び第２突片部６８Ａ側の側端縁部に、係止部材７０を縦に挿入できる程度の隙間を設ける。続いて、各第１突片部６５Ａ、６６Ａと第２突片部６８Ａ、６９Ａとにおいて、係止部材７０、７１を内側に挟み込むことにより、カバー部材６３のシャーシ６２への取り付けの封止を行うことができる。また、各第１突片部６５Ａ、６６Ａと各第２突片部６８Ａ、６９Ａをカバー部材６３及びシャーシ６２から切り欠くことにより、この封止を解除する。
【００６０】
したがって、各係止部材７０、７１は、各第１突片部６５Ａ、６６Ａと第２突片部６８Ａ、６９Ａの内側において係止されるため、各係止部材７０、７１の各係止突起に自由に接触することを防止することができ、この封止を不正に外されることを効果的に防止することが可能となる。また、各係止部材７０、７１を上記第１取付孔７４及び第２取付孔７５の内側に挟み込むことにより封止を行うことができるため、この封止を容易に行うことができて作業性の向上を図ることが可能となる。また、各凹部７３、７６の製作は、容易なため、製造コストダウンを図ることが可能となる。
また、各係止部材７０、７１が嵌挿された第１突片部６５Ａ、６６Ａ及び第２突片部６８Ａ、６９Ａをシャーシ６２及びカバー部材６３から切り欠くことにより、上記封止が解除されて、該カバー部材６３をシャーシ６２から取り外すことが可能になる。また、未だ切り欠けられていない各第１突片部６５Ｂ〜６５Ｄ、６６Ｂ〜６６Ｄ及び各第２突片部６８Ｂ〜６８Ｄ、６９Ｂ〜６９Ｄにおいて、これらの内側に係止部材７０、７１を挟み込むことにより、カバー部材６３のシャーシ６２への取り付けを再度、封止することが可能となる。
また、各係止部材７０、７１は、透明な合成樹脂製のカバー部材６３を介して見えるため、係止部材７０、７１による封止の確認を容易に、且つ効果的に行うことが可能となる。
また、各係止部材は７０、７１には、茶色が付されているため、各係止部材７０、７１による封止の確認をより容易に、且つより効果的に行うことが可能となる。
さらに、基板ケース６１内にはメイン基板２が装着されるため、封止中のメイン基板２に対する検査等をより効果的に繰り返し行うことが可能となる。
【００６１】
尚、本発明は上記第１乃至第３実施形態に限定されることはなく、本発明の要旨を逸脱しない範囲内で種々の改良、変形が可能であることは勿論であり、以下のようにしてもよい。
（ａ）前記第１乃至第３実施形態では、各係止部材１０、１２、４０、４１、７０、７１を別供給としたが、各基板ケース１、３１、６１内等に、取り外せるようにして装着しておいてもよい。
（ｂ）前記第１乃至第３実施形態では、各係止部材１０、１２、４０、４１、７０、７１は、茶色に着色されていたが、着色する色は任意であり、蛍光色等を着色してもよい。
【００６２】
【発明の効果】
以上説明した通り本発明は、回路基板に対する封止部分に封止後自由に接触することを防止し、該封止を不正に外されることを効果的に防止することが可能となると共に、該封止を容易に行うことができて作業性の向上を図ることが可能なパチンコ機の基板ケースを提供することができる。
【図面の簡単な説明】
【図１】第１実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
【図２】第１実施形態に係る基板ケースの各第１突片部、各第２突片部、係止部材、及び螺子を示す側断面図である。
【図３】第１実施形態に係る基板ケースの各第１突片部、各第２突片部、係止部材、及び螺子の取りつけ状態を示す側断面図である。
【図４】第１実施形態に係る基板ケースの封止を解除した際の一例を示す平面図である。
【図５】第２実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
【図６】第２実施形態に係る基板ケースの各第１突片部、各第２突片部、及び係止部材を示す側断面図である。
【図７】第２実施形態に係る基板ケースの各第１突片部、各第２突片部、及び係止部材の取りつけ状態を示す側断面図である。
【図８】第３実施形態に係るパチンコ機の基板ケースを示した分解斜視図である。
【図９】第３実施形態に係る基板ケースの第１突片部、第２突片部、及び係止部材を示す要部を拡大した側断面図であって、上下に間隔をあけて示したものある。
【図１０】第３実施形態に係る基板ケースの第１突片部、第２突片部、及び係止部材の取り付け状態を示す側断面図である。
【図１１】従来例に係るパチンコ機の回路基板の封止構造を示した分解斜視図である。
【図１２】従来例に係るパチンコ機の図１１の矢視Ｐから見た図であって、第１突片部、第２突片部、ねじの一部については、断面で示したものである。
【図１３】従来例に係るパチンコ機のメイン基板をシャーシ及びカバーで封止した際における一例を示した断面図である。
【図１４】従来例に係るパチンコ機の回路基板に対する封止を解除した際の一例を示した平面図である。
【符号の説明】
１、３１、６１基板ケース
２メイン基板
３、３２、６２シャーシ
４、３３、６３カバー部材
５Ａ〜５Ｄ、６Ａ〜６Ｄ、３５Ａ〜３５Ｄ、３６Ａ〜３６Ｄ、６５Ａ〜６５Ｄ、６６Ａ〜６６Ｄ第１突片部
８Ａ〜８Ｄ、９Ａ〜９Ｄ、３８Ａ〜３８Ｄ、３９Ａ〜３９Ｄ、６８Ａ〜６８Ｄ、６９Ａ〜６９Ｄ第２突片部
７、３７係止孔
１０、１１、４０、４１、７０、７１係止部材
１０Ａ、４０Ａ、７０Ａ板部材
１０Ｂ、４０Ｂ、７０Ｂ弾性係止片
１０Ｃ、４０Ｃ、７０Ｃ係止突起
１１、１３螺子
１５、４５、７４第１取付孔
１８、４８当接部
１９、４７、７５第２取付孔
２０、５０、８０梁部
７３、７６凹部[0001]
BACKGROUND OF THE INVENTION
 The present invention relates to a substrate case of a pachinko machine, and in particular, seals the attachment of a cover member to a chassis by locking with a locking member inserted into each chassis and a mounting hole of the cover member. The present invention relates to a board case of a pachinko machine that can reliably detect an illegal act on a circuit board in the board case because the stop cannot be released nondestructively.
[0002]
[Prior art]
 In a recent pachinko machine, a main board is mounted which is one of circuit boards and mounted with a ROM in which game contents of the pachinko machine are written. Therefore, in order to prevent the game contents of the pachinko machine from being illegally changed, various sealing structures are applied to the main board on which the ROM is mounted.
 As this conventional example, an example of this sealing structure will be described with reference to FIGS. First, a schematic configuration of this sealing structure will be described with reference to FIGS. FIG. 11 is an exploded perspective view showing a circuit board sealing structure of a conventional pachinko machine. FIG. 12 is a view of the conventional pachinko machine as seen from the direction of arrow P in FIG. 11, and the first projecting piece part, the second projecting piece part, and a part of the screw are shown in cross section. .
 As shown in FIG. 11, the circuit board sealing structure of the pachinko machine is such that the main board 101 is sealed with the chassis 102 and the cover 103, and the following measures are taken.
[0003]
 That is, eight first projecting piece portions 104 are protruded from the chassis 102 to which the main board 101 is fixed, and each of the first projecting piece portions 104 has a first mounting hole 105. Is provided. Also, eight second projecting piece portions 106 are provided on the cover 103 that covers the main substrate 101 so as to protrude.
[0004]
 As shown in FIG. 12, the second projecting piece 106 comes into contact with each of the first projecting piece 104 when the cover 103 is placed at a fixed position with respect to the chassis 102. is there. Further, a second mounting hole 107 is provided in each of the second projecting piece portions 106. As shown in FIG. 12, the second mounting hole 107 is continuously located in series with respect to each of the first mounting holes 105 when the cover 103 is placed at a fixed position with respect to the chassis 102. Is. Each of the second mounting holes 107 is temporarily fixed with a screw 108 that advances only in one direction. Note that FIG. 12 is viewed from an arrow P in FIG. 11, and the two sets of the first projecting piece portion 104, the second projecting piece portion 106, and the screw 108 are shown in cross section.
[0005]
 Next, an example of sealing in this conventional example will be described with reference to FIG. FIG. 13 is a cross-sectional view showing an example when the main board of the pachinko machine according to the conventional example is sealed with a chassis and a cover.
 As shown in FIG. 13, when the cover 103 is placed at a fixed position with respect to the chassis 102, the right end (right side in FIG. 13) screw 108 is screwed into the second mounting hole 107 and the first mounting hole 105. Since the cover 103 is fixed at a fixed position with respect to the chassis 102, the main board 101 can be sealed with the chassis 102 and the cover 103. Further, since the screw 108 advances only in one direction, once screwed into the second mounting hole 106 and the first mounting hole 105, it can be removed from the second mounting hole 106 and the first mounting hole 105. Disappear. As a result, the cover 103 cannot be separated from the chassis 102, so that illegal acts on the main board 101 can be prevented.
[0006]
 In this conventional example, in order to effectively seal the main substrate 101, the eight first protrusions 104 and the eight second protrusions 106 are arranged diagonally as shown in FIG. It is divided into four places where it will be. Then, the main substrate 101 can be effectively sealed by screwing the pair of screws 108 temporarily fixed at opposite positions.
[0007]
 Next, an example of releasing the seal in this conventional example will be described with reference to FIG. FIG. 14 is a plan view showing an example when the sealing of the circuit board of the pachinko machine according to the conventional example is released.
 As shown in FIG. 14, a first protruding piece 104 provided with a pair of first mounting holes 105 positioned diagonally into which the screw 108 is screwed in, and a second protruding piece 106 provided with a second mounting hole 107, Is cut out from the chassis 102 and the cover 103, the cover 103 can be separated from the chassis 102, and thus the sealing with respect to the main substrate 101 can be released.
[0008]
 Further, after that, the cover 103 is placed at a fixed position with respect to the chassis 102, and the first projecting piece 104 and the second projecting piece 106 that have not been cut out from the chassis 102 and the cover 103 are placed at diagonal positions. When the pair of temporarily fixed screws 108 are screwed in, the main substrate 101 can be sealed again. Here, as described above, since a pair of screws 108 temporarily fixed at opposite positions are used for reliable sealing with respect to the main substrate 101, sealing with respect to the main substrate 101 and release thereof are performed. It can be repeated 4 times.
[0009]
 Therefore, even if the sealing is released for inspection of the main substrate 101 being sealed, the main substrate 101 can be sealed again. Furthermore, since the trace of the release of the sealing with respect to the main substrate 101 can be left by the cutout marks of the first protruding piece 104 and the second protruding piece 106, if compared with the record of the release of the sealing, It can be identified whether the release of the seal is for inspection or due to fraud.
[0010]
[Problems to be solved by the invention]
 However, since the screw 108 screwed into the second mounting hole 107 can be freely contacted from the outside, there is a problem that it may be removed illegally. Further, it is difficult to manage the torque for screwing the screw 108 into the first mounting hole 105, and there is a problem that workability is lowered.
[0011]
 Accordingly, the present invention has been made to solve the above-described problems, and prevents free contact with the sealing portion with respect to the circuit board after sealing, and the sealing is illegally removed. It is an object of the present invention to provide a substrate case for a pachinko machine that can prevent the above effectively and can be easily sealed to improve workability.
[0012]
[Means for Solving the Problems]
 In order to achieve the above object, a board case of a pachinko machine according to claim 1 has a circuit board for controlling the operation state of the pachinko machine, a chassis on which the circuit board is fixed, and a size substantially the same as the chassis. In a board case of a pachinko machine comprising a box-shaped cover member attached so as to cover the circuit board, and a sealing means for sealing the attachment of the cover member to the chassis,A plurality of first projecting piece portions projecting from the chassis, and a plurality of second projecting piece portions projecting at positions facing each of the first projecting piece portions of the cover member,The sealing means includes a locking member having a locking projection formed at one end thereof, and the chassis.Each of the first protrusion piecesAt least one first mounting hole having a predetermined depth into which the locking member is fitted and inserted from one end side, and the cover memberIn each of the second protrusion pieces,A second mounting hole formed at a position opposite to the first mounting hole, into which the locking member is fitted from one end side, and one of the first mounting hole and the second mounting hole. A first mounting hole or a second mounting hole in which the concave portion is formed, the outer end surface portion of which is closed. The first mounting hole or the second mounting hole in which the recess is not formed has an outer end face portion opened,The first mounting hole or the second mounting hole in which the concave portion is not formed is formed in the inner end surface portion, has a contact portion that contacts the locking member, and the first mounting hole in which the concave portion is formed. Alternatively, the second mounting hole has a mounting boss that is suspended from the center position of the inner bottom surface to the same height as the upper end surface of the contact portion, and the locking member is a plate that contacts the contact portion. Parts and,A plurality of elastic locking pieces formed on an end portion of the plate member and suspended on a surface of the plate member in contact with the corresponding contact portion;The locking member is formed from an outer end surface portion of the first mounting hole or the second mounting hole in which the concave portion is not formed.The plate member is in contact with the contact portion and the mounting boss.The first mounting hole and the second mounting hole are inserted into the first mounting hole and the locking projection is engaged with the recess, whereby the first mounting hole and the second mounting hole are connected, and the chassis of the cover member is connected. The attachment to is sealedThe first projecting piece portion and the second projecting piece portion in which the first mounting hole and the second mounting hole into which the locking member is inserted are formed by notching the chassis and the cover member. The sealing by the stopping means is releasedIt is characterized by that.
[0013]
 In the board case of the pachinko machine according to claim 1 having such characteristics, the sealing means between the chassis on which the circuit board is fixed and the cover member attached so as to cover the circuit board is the chassis.Each of the plurality of first projecting pieces projecting fromA first mounting hole of a predetermined depth formed in theEach of the plurality of second projecting piece portions protruding at positions facing each of the first projecting piece portionsThe second mounting hole having a predetermined depth is formed, and the first mounting hole and a locking member that is fitted and inserted into the inner side of the second mounting hole from one end side. In addition, a locking projection is formed at the end of the locking member, and a recess is formed at a position facing the locking projection inside one of the first mounting hole and the second mounting hole. Yes. Furthermore, the other end side of the first mounting hole or the second mounting hole in which the concave portion is formed is closed, and the first mounting hole or the second mounting hole in which the concave portion is not formed is an outer end surface portion. Is open.The first mounting hole or the second mounting hole in which no recess is formed has an abutting portion that abuts on the locking member formed on the inner end surface portion. In addition, the first mounting hole or the second mounting hole in which the concave portion is formed has a mounting boss suspended from the center position of the inner bottom surface to the same height as the upper end surface of the contact portion. In addition, the locking member has a plate member that contacts the corresponding contact portion, and a plurality of elastic locking pieces having locking protrusions formed on the end portions thereof are suspended from the surface on the contact side.. And as for this locking member, the outer end surface part is not plugged upThe plate member comes into contact with the contact portion and the mounting boss from the outer end surface portion of the first mounting hole or the second mounting hole.In the first mounting hole or the second mounting holeFitThe first mounting hole and the locking projection of the locking member are inserted into the concave portion formed in the first mounting hole or the second mounting hole whose outer end surface portion is blocked. A second mounting hole is connected to seal the cover member to the chassis.
 ThisUntil the plate member of the locking member comes into contact with the contact portion formed on one inner end surface portion of the first mounting hole or the second mounting hole and the mounting boss suspended from the center position of the other inner bottom surface, By inserting and inserting, each locking projection can engage with the concave portion to perform sealing, so that this sealing can be easily performed and workability can be improved. Also concaveSince the outer end surface portion of the first mounting hole or the second mounting hole in which the portion is formed is blocked, it is possible to prevent the locking protrusion portion of the locking member from freely contacting after sealing. It is possible to effectively prevent this sealing from being illegally removed..
 In addition, the first projecting piece and the second projecting piece formed with the first mounting hole and the second mounting hole in which the locking member is inserted are cut out from the chassis and the cover member, thereby sealing by the sealing means. The stop is released.
 As a result, the sealing by the sealing means is released by cutting out the first projecting piece and the second projecting piece into which the locking member is inserted from the chassis and the cover member, and the cover member is removed from the chassis. It can be removed. Moreover, in the 1st protrusion piece part and the 2nd protrusion piece part which are not cut out yet, the attachment to the chassis of a cover member can be sealed again by inserting a locking member inside these. It becomes possible.
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
DETAILED DESCRIPTION OF THE INVENTION
 Hereinafter, first to third embodiments in which a substrate case of a pachinko machine according to the present invention is embodied with respect to a substrate case of a main substrate will be described in detail with reference to the drawings.
First, the board case of the pachinko machine according to the first embodiment will be described with reference to FIGS. First, the overall configuration of the substrate case of the pachinko machine according to the first embodiment will be described with reference to FIG. FIG. 1 is an exploded perspective view showing a substrate case of the pachinko machine according to the first embodiment.
 As shown in FIG. 1, a substrate case 1 includes a main board 2 that is a circuit board, a chassis 3 to which the main board 2 is fixed, and a transparent cover formed of a synthetic resin such as polycarbonate resin that covers the main board 2. It is comprised from the member 4. The main board 2 is configured with a control circuit for controlling prize ball payout control and the like of the pachinko machine.
[0029]
 Further, four first projection pieces 5A, 5B, 5C, 5D, and 6A, 6B, 6C, 6D are symmetrical at the upper and lower end edges (left and right end edges in FIG. 1) of the chassis 3 respectively. It is provided in a protruding position. Locking holes 7 (see FIG. 2), which will be described later, are formed at two positions symmetrical to the central axis of the side surfaces of the first projecting piece portions 5A to 5D and 6A to 6D. In addition, at the positions facing the first projecting piece portions 5A to 5D and 6A to 6D on the upper and lower edges of the open side of the cover member 4, four second projecting piece portions 8A, 8B, 8C, 8D, And 9A, 9B, 9C, and 9D are provided to protrude.
[0030]
 Further, as will be described later, the respective locking members 10 and 12 (see FIG. 2) made of a brown synthetic resin are inserted into the second projecting piece portions 8A and 9A from above. Furthermore, the screws (so-called one-way screws) 11 and 13 that advance only in one direction from the upper side of the locking members 10 and 12 are screwed in as described later, and the attachment of the cover member 4 to the chassis 3 is sealed. (See FIG. 3).
[0031]
 Next, FIG. 2 shows the configuration of the first projecting piece portions 5A to 5D, 6A to 6D, the second projecting piece portions 8A to 8D, 9A to 9D, the locking members 10 and 12, and the screws 11 and 13. This will be explained based on. In addition, each 1st protrusion piece part 5A-5D, each 2nd protrusion piece part 8A-8D, the locking member 10, and the screw | thread 11, each 1st protrusion piece part 6A-6D, and each 2nd protrusion piece part 9A ~ Since 9D, the locking member 12, and the screw 13 have substantially the same configuration, the configuration of the first protruding piece portions 5A to 5D, the second protruding piece portions 8A to 8D, the locking member 10, and the screw 11 is configured. Will be described. FIG. 2 is a side sectional view showing the first projecting piece portions 5A to 5D, the second projecting piece portions 8A to 8D, the locking member 10, and the screw 11 of the substrate case 1 according to the first embodiment.
[0032]
 First, as shown in FIG. 2, the first projecting piece portions 5 A to 5 D projecting from the chassis 3 have substantially the same shape, are substantially cylindrical, and the lower end edge portion is closed, A mounting hole 15 is formed. The locking holes 7 and 7 are formed at approximately half the height of the side surface at positions symmetrical to the central axis. A mounting boss 16 is suspended at a substantially lower central position on the bottom surface at a height slightly lower than the upper end surface. A screw hole 17 having a predetermined depth into which the screw 11 is screwed is formed on the upper end surface of the mounting boss 16.
[0033]
 Moreover, as shown in FIG. 2, each 2nd protrusion piece part 8A-8D protrudingly provided from the open side edge part of the cover member 4 is substantially the same shape, and an internal diameter dimension is each 1st protrusion piece. The second mounting hole 19 is formed in a substantially cylindrical shape that is slightly larger than the outer diameter of the portions 5A to 5D. Moreover, when the cover member 4 is attached to the chassis 3 at a position at a predetermined height from the lower end surface inside the second projecting piece portions 8A to 8D, the upper end surfaces of the first projecting piece portions 5A to 5D are attached. An abutting portion 18 that abuts on the inner side protrudes in a rib shape inside. Moreover, the height dimension from the lower surface of each contact part 18 to the lower surface of each 2nd protrusion piece part 8A-8D is the height from the upper end surface of each 1st protrusion piece part 5A-5D to each locking hole 7. It is formed larger than the size. Further, the adjacent second projecting piece portions 8 A to 8 D are connected to each other with the beam portion 20 installed thereon.
 As a result, the hook-like locking portion 23 provided at the side edge (on the left side edge in FIG. 2) of the cover member 4 is engaged with the locking port 24 (see FIG. 4) of the chassis 3. When installed, the second projecting piece portions 8A to 8D cover the first projecting piece portions 5A to 5D so as to cover the outer sides of the locking holes 7 of the first projecting piece portions 5A to 5D. It is fitted on the upper side.
[0034]
 Further, as shown in FIG. 2, the brown locking member 10 inserted into the second projecting piece 8 A is smaller than the inner diameter of the second projecting piece 8 A and is larger than the inner diameter of the contact portion 18. A disk-shaped plate member 10A having a large outer diameter and two elastic locking pieces 10B, 10B suspended from the lower surface of the plate member 10A are provided, and each elastic locking piece 10B, 10B is provided. Each of the locking projections 10C, 10C is formed at the lower end of the. As will be described later, the locking projections 10C and 10C are elastically engaged with the locking holes 7 and 7 formed in the first protruding piece portion 5A, and thereby, the engaging protrusions 10C and 10C are engaged inside the second protruding piece portion 8A. The stop member 10 and the first protruding piece 5A are connected (see FIG. 3).
 Further, a mounting boss 10D is provided vertically at the center of the lower surface of the plate member 10A of the locking member 10, and a through hole 10E is formed to communicate the lower surface of the mounting boss 10D with the upper surface of the plate member 10A. The screw 11 is inserted into the through hole 10E as described later (see FIG. 3). Further, the height dimension of the mounting boss 10D from the lower surface of the plate member 10A is substantially equal to the height dimension from the upper end surface of the mounting boss 16 to the upper end surface of the first protruding piece 8A.
[0035]
 Next, attachment of the first protrusion pieces 5A to 5D, the second protrusion pieces 8A to 8D, the locking member 10, and the screw 11 configured as described above will be described with reference to FIG. FIG. 3 is a side sectional view showing a state in which the first projecting piece portions 5A to 5D, the second projecting piece portions 8A to 8D, the locking member 10, and the screw 11 of the board case 1 according to the first embodiment are attached. is there.
 As shown in FIG. 3, first, the engaging portion 23 of the cover member 4 is engaged with the engaging port 24 (see FIG. 4) of the chassis 3, and the cover member 4 is attached to the chassis 3. Then, until the lower surface of the plate member 10A of the locking member 10 comes into contact with the contact portion 18 of the second protruding piece portion 8A, the elastic locking piece 10B is passed through the second mounting hole 19 of the second protruding piece portion 8A. The locking projections 10C and 10C formed at the lower end of the elastic locking piece 10B are engaged with the locking holes 7 and 7 by being inserted into the first mounting holes 15 of the first protruding piece 5A. As a result, the second projecting piece 8 A is coupled to the first projecting piece 5 A via the locking member 10. Subsequently, the screw 11 is inserted into the through hole 10E of the plate member 10 and screwed into the screw hole 17 of the first projecting piece portion 5A, so that the second projecting piece portion 8A and the first projecting piece portion 5A are locked members. 10 is firmly connected.
 Further, after inserting the screw 11 into the through hole 10E of the locking member 10, both the locking member 10 and the screw 11 are inserted into the second mounting hole 19 of the second projecting piece 8A from above, and the screw 11 is inserted. By screwing into the screw hole 17 of the first protruding piece portion 5A, the lower surface of the plate member 10A of the locking member 10 is brought into contact with the contact portion 18 of the second protruding piece portion 8A, and the elastic locking piece 10B. The locking protrusions 10 C and 10 C formed at the lower end of the locking holes may be engaged with the locking holes 7 and 7. Also by this, the second projecting piece portion 8 A and the first projecting piece portion 5 A are firmly connected via the locking member 10.
 And the brown latching member 10 can be confirmed at a glance through the 2nd protrusion piece part 8A of the cover member 4 made of a transparent synthetic resin.
In addition, each 1st protrusion piece part 6A-6D, each 2nd protrusion piece part 9A-9D, the locking member 12, and the screw 13 are attached similarly. Thereby, the attachment of the cover member 4 to the chassis 3 is sealed.
[0036]
 Next, a method for releasing the sealing of the attachment of the cover member 4 to the chassis 3 will be described with reference to FIG. FIG. 4 is a plan view showing an example when the sealing of the substrate case 1 according to the first embodiment is released.
 As shown in FIG. 4, the beam 20 connecting the second projecting piece 8A and the second projecting piece 8B is notched, the connecting part between the second projecting piece 8A and the cover member 4, and the first The first projecting piece 5A and the second projecting piece 8A are removed from the substrate case 1 by cutting out the connecting portion between the first projecting piece 5A and the chassis 3. Subsequently, the beam portion 20 that connects the second projecting piece portion 9A and the second projecting piece portion 9B is notched, the connecting portion between the second projecting piece portion 9A and the cover member 4, and the first projecting piece portion. The first projecting piece portion 6A and the second projecting piece portion 9A are removed from the substrate case 1 by cutting out the connecting portion between 6A and the chassis 3. Thereby, sealing of attachment to the chassis 3 of the cover member 4 can be cancelled | released.
 After that, the cover member 4 is attached to the chassis 3, and the separately supplied locking members 10, 12 are provided at the first projecting piece portions 5 B, 6 B and the second projecting piece portions 8 B, 9 B that have not been cut out. Is inserted, and the screws 11 and 13 are screwed in, so that the attachment of the cover member 4 to the chassis 3 can be sealed again. That is, in the board case 1 according to the first embodiment, the cover member 4 can be sealed four times to the chassis 3.
[0037]
 As described above in detail, in the substrate case 1 of the pachinko machine according to the first embodiment, the cover member 4 is attached to the chassis 3 by engaging the locking portion 23 of the cover member 4 with the locking port 24 of the chassis 3. . And in the 2nd mounting hole 19 of each 2nd protrusion piece part 8A, 9A and the 1st attachment hole 15 of each 1st protrusion piece part 5A, 6A fitted on the upper side of each 1st protrusion piece part 5A, 6A. The locking members 10 and 12 are inserted, and the locking protrusions of the locking members 10 and 12 are engaged with the locking holes 7 of the first protrusions 5A and 6A, respectively. 5A, 6A and each 2nd protrusion piece part 8A, 9A are connected. Then, the screws 11 and 13 are inserted through the through holes of the locking members 10 and 12 and screwed into the first projecting piece portions 5A and 6A to seal the attachment of the cover member 4 to the chassis 3. Further, the sealing is released by notching the first projecting piece portions 5A and 6A and the second projecting piece portions 8A and 9A from the cover member 4 and the chassis 3.
[0038]
 Therefore, after sealing, each locking hole 7 is covered with the second projecting piece portions 8A to 8D and 9A to 9D, and the lower ends of the first projecting piece portions 5A to 5D and 6A to 6D are Since it is blocked, it is possible to prevent free contact with the respective locking projections of the respective locking members 10, 12, and to effectively prevent this sealing from being tampered with. It becomes possible. In addition, since each of the locking members 10 and 12 can be sealed by being inserted inside the first mounting hole 15 and the second mounting hole 19, this sealing can be easily performed. It becomes possible to improve workability. Moreover, since the production | generation of each latching hole 7 is easy, it becomes possible to aim at manufacturing cost reduction.
 Moreover, since each latching member 10 and 12 is screwed by each screw 11 and 13, the latching member 10 and 12 can be fixed more firmly, and this sealing is removed illegally. It becomes possible to prevent more effectively.
 Further, the sealing is released by cutting out the first projecting piece portions 5A and 6A and the second projecting piece portions 8A and 9A into which the respective locking members 10 and 12 are inserted from the chassis 3 and the cover member 4. Thus, the cover member 4 can be removed from the chassis 3. Further, in each of the first projecting pieces 5B to 5D, 6B to 6D and the second projecting pieces 8B to 8D and 9B to 9D that have not been cut out yet, a locking member is inserted inside these parts. The cover member 4 can be attached again to the chassis 3 again.
 Further, since each of the locking members 10 and 12 is visible through the transparent synthetic resin cover member 4, it is possible to easily and effectively confirm the sealing by the locking members 10 and 12. Become.
In addition, since the locking members 10 and 12 are browned, it is possible to more easily and more effectively check the sealing by the locking members 10 and 12.
 Further, since the main substrate 2 is mounted in the substrate case 1, it is possible to repeatedly and effectively inspect the main substrate 2 being sealed.
[0039]
 Next, the substrate case of the pachinko machine according to the second embodiment will be described with reference to FIGS. First, the overall configuration of the substrate case of the pachinko machine according to the second embodiment will be described with reference to FIG. FIG. 5 is an exploded perspective view showing a substrate case of the pachinko machine according to the second embodiment.
 As shown in FIG. 5, the substrate case 31 according to the second embodiment has substantially the same configuration as the substrate case 1 according to the first embodiment. However, it comprises a chassis 32 to which the main board 2 is fixed, and a transparent cover member 33 formed of a synthetic resin such as a polycarbonate resin that covers the main board 2.
[0040]
 In addition, four first projection pieces 35A, 35B, 35C, 35D and 36A, 36B, 36C, 36D are symmetrical at the upper and lower edges (left and right edges in FIG. 5) of the chassis 32, respectively. It is provided in a protruding position. Locking holes 37 (see FIG. 6), which will be described later, are formed at two positions symmetrical with respect to the central axis of the side surfaces of the first projecting piece portions 35A to 35D and 36A to 36D. In addition, at the positions facing the first projecting piece portions 35A to 35D and 36A to 36D on the upper and lower end edges of the open side of the cover member 33, four second projecting piece portions 38A, 38B, 38C, 38D, And 39A, 39B, 39C, 39D are respectively provided so as to protrude.
[0041]
 Further, as will be described later, the respective locking members 40 and 41 (see FIG. 6) made of brown synthetic resin are fitted into the second projecting piece portions 38A and 39A from the upper side, and the chassis 32 of the cover member 33 is inserted. The attachment to is sealed (see FIG. 7).
[0042]
 Next, the configuration of the first projecting piece portions 35A to 35D, 36A to 36D, the second projecting piece portions 38A to 38D, 39A to 39D, and the locking members 40 and 41 will be described with reference to FIG. The first protrusions 35A to 35D, the second protrusions 38A to 38D, the locking member 40, the first protrusions 36A to 36D, the second protrusions 39A to 39D, and Since the locking member 41 has substantially the same configuration, the configuration of each of the first protruding piece portions 35A to 35D, the second protruding piece portions 38A to 38D, and the locking member 40 will be described. FIG. 6 is a side sectional view showing the first projecting piece portions 35A to 35D, the second projecting piece portions 38A to 38D, and the locking member 40 of the substrate case 31 according to the second embodiment.
[0043]
 First, as shown in FIG. 6, the first projecting pieces 35 A to 35 D that project from the chassis 32 have substantially the same shape, are substantially cylindrical, and the lower end edge portion is closed. A mounting hole 45 is formed. Then, the locking holes 37 are formed on the side surface at positions symmetrical to the central axis. A mounting boss 46 is suspended substantially at the center position of the bottom surface to a height position substantially the same as an upper end surface of a contact portion 48 described later. A hole having a predetermined depth is formed in the upper end surface of the mounting boss 46.
[0044]
 Moreover, as shown in FIG. 6, each 2nd protrusion piece part 38A-38D protrudingly provided from the open side edge part of the cover member 33 is substantially the same shape, and an internal diameter dimension is each 1st protrusion piece. The second mounting hole 47 is formed in a substantially cylindrical shape that is slightly larger than the outer diameter of the portions 35 A to 35 D. Further, when the cover member 33 is attached to the chassis 32 at a predetermined height from the lower end surface inside each of the second projecting piece portions 38A to 38D, the upper end surface of each of the first projecting piece portions 35A to 35D. An abutting portion 48 that abuts on the inner side protrudes in a rib shape inside. The height dimension from the lower surface of each contact portion 48 to the lower surface of each second projecting piece portion 38A to 38D is the height from the upper end surface of each first projecting piece portion 35A to 35D to each locking hole 37. It is formed larger than the size. Further, the adjacent second projecting piece portions 38 A to 38 D are connected with a beam portion 50 installed thereon.
 As a result, the hook-like locking portion 23 provided at the side edge (on the left side edge in FIG. 6) of the cover member 33 is engaged with the locking port 24 (see FIG. 4) of the chassis 32. In the case where the second projecting piece portions 38A to 38D are attached, the first projecting piece portions 35A to 35D cover the outer sides of the locking holes 37 of the first projecting piece portions 35A to 35D. It is fitted on the upper side.
[0045]
 Further, as shown in FIG. 6, the brown locking member 40 inserted into the second projecting piece portion 38 A is smaller than the inner diameter size of the second projecting piece portion 38 A and is larger than the inner diameter size of the contact portion 48. A disk-shaped plate member 40A having a large outer diameter and two elastic locking pieces 40B and 40B suspended from the lower surface of the plate member 40A are provided, and each elastic locking piece 40B and 40B is provided. The locking projections 40C and 40C are formed at the lower end of each. As will be described later, the locking protrusions 40C and 40C are elastically engaged with the locking holes 37 and 37 formed in the first projecting piece portion 35A, so that in the second projecting piece portion 38A, The locking member 40 and the first projecting piece 35A are connected (see FIG. 7).
[0046]
 Next, attachment of the first protrusion pieces 35A to 35D, the second protrusion pieces 38A to 38D, and the locking member 40 configured as described above will be described with reference to FIG. FIG. 7 is a side sectional view showing how the first projecting piece portions 35A to 35D, the second projecting piece portions 38A to 38D, and the locking member 40 of the substrate case 31 according to the second embodiment are attached.
 As shown in FIG. 7, first, the engaging portion 23 of the cover member 33 is engaged with the engaging port 24 (see FIG. 4) of the chassis 32, and the cover member 33 is attached to the chassis 32. Then, the elastic locking piece 40B is moved to the first position until the lower surface of the plate member 40A of the locking member 40 contacts the upper end surface of the mounting boss 46 of the second protruding piece portion 38A and the contact portion 48 of the second protruding piece portion 35A. The locking projections 40C, 40C formed on the lower end of the elastic locking piece 40B are fitted into the first mounting holes 45 of the first protruding piece portion 35A through the second mounting holes 47 of the two protruding piece portions 38A. Is engaged with the respective locking holes 37, 37. Accordingly, the second projecting piece portion 38A is coupled to the first projecting piece portion 35A via the locking member 40. Further, the brown locking member 40 can be confirmed at a glance through the second projecting piece portion 38A of the transparent synthetic resin cover member 33.
In addition, each 1st protrusion piece part 36A-36D, each 2nd protrusion piece part 39A-39D, and the locking member 41 are attached similarly. Thereby, the attachment of the cover member 33 to the chassis 32 is sealed.
[0047]
 Further, the method of releasing the sealing of the attachment of the cover member 33 to the chassis 32 is substantially the same as in the first embodiment (see FIG. 4), and the second projecting piece 38A and the second projecting piece 38B By cutting out the beam portion 50 that connects the first projecting portion 38A and the cover member 33, and by cutting out the connecting portion between the first projecting portion 35A and the chassis 32, the first projecting portion 38A is cut out. The piece portion 35A and the second protruding piece portion 38A are removed from the substrate case 31. Subsequently, the beam portion 50 that connects the second projecting piece portion 39A and the second projecting piece portion 39B is cut out, the connecting portion between the second projecting piece portion 39A and the cover member 33, and the first projecting piece portion. The first projecting piece portion 36 A and the second projecting piece portion 39 A are removed from the substrate case 31 by cutting out a connecting portion between 36 A and the chassis 32. Thereby, sealing of attachment to the chassis 32 of the cover member 33 can be cancelled | released.
 After that, the cover member 33 is attached to the chassis 32, and the separately supplied locking members 40, 41 at the first projecting piece portions 35B, 36B and the second projecting piece portions 38B, 39B that have not been cut out yet. The cover member 33 can be sealed to be attached to the chassis 32 again. That is, in the substrate case 31 according to the second embodiment, the cover member 33 can be sealed four times to the chassis 32.
[0048]
 As described above in detail, in the substrate case 31 of the pachinko machine according to the second embodiment, the cover member 33 is attached to the chassis 32 by engaging the locking portion 23 of the cover member 33 with the locking port 24 of the chassis 32. . Then, in the second mounting hole 47 of each of the second projecting piece portions 38A and 39A and the first mounting hole 45 of each of the first projecting piece portions 35A and 36A that are fitted on the upper side of each of the first projecting piece portions 35A and 36A. The locking members 40 and 41 are inserted and the locking protrusions of the locking members 40 and 41 are engaged with the locking holes 37 of the first protrusions 35A and 36A, respectively. 35A, 36A and each 2nd protrusion piece part 38A, 39A are connected, and the attachment to the chassis 32 of the cover member 33 is sealed. Further, the sealing is released by notching the first projecting piece portions 35A and 36A and the second projecting piece portions 38A and 39A from the cover member 33 and the chassis 32.
[0049]
 Therefore, after sealing, each locking hole 37 is covered with the second projecting piece portions 38A to 38D and 39A to 39D, and the lower ends of the first projecting piece portions 35A to 35D and 36A to 36D are Since it is blocked, it is possible to prevent free contact with the respective locking projections of the respective locking members 40 and 41, and to effectively prevent this sealing from being tampered with. It becomes possible. Moreover, since each locking member 40, 41 can be sealed by being fitted inside the first mounting hole 45 and the second mounting hole 47, this sealing can be easily performed. It becomes possible to improve workability. In addition, since each of the locking holes 37 is easy to manufacture, the manufacturing cost can be reduced.
 Further, the sealing is released by cutting out the first protrusions 35A and 36A and the second protrusions 38A and 39A into which the locking members 40 and 41 are inserted from the chassis 32 and the cover member 33. Thus, the cover member 33 can be removed from the chassis 32. Further, in each of the first projecting piece portions 35B to 35D, 36B to 36D and the second projecting piece portions 38B to 38D and 39B to 39D that have not been cut out yet, the locking members 40 and 41 are inserted inside these. By doing so, it becomes possible to seal the attachment of the cover member 33 to the chassis 32 again.
 Further, since each of the locking members 40 and 41 can be seen through the transparent synthetic resin cover member 33, it is possible to easily and surely confirm the sealing by the locking members 40 and 41. .
 In addition, since the locking members 40 and 41 are browned, it is possible to more easily and more effectively check the sealing by the locking members 40 and 41.
 Furthermore, since the main substrate 2 is mounted in the substrate case 31, it is possible to repeatedly and effectively inspect the main substrate 2 being sealed.
[0050]
 Next, a substrate case of a pachinko machine according to a third embodiment will be described with reference to FIGS. First, the overall configuration of the substrate case of the pachinko machine according to the third embodiment will be described with reference to FIG. FIG. 8 is an exploded perspective view showing a substrate case of the pachinko machine according to the third embodiment.
 As shown in FIG. 8, the substrate case 61 according to the third embodiment has substantially the same configuration as the substrate case 1 according to the first embodiment. However, it comprises a chassis 62 to which the main board 2 is fixed and a transparent cover member 63 formed of a synthetic resin such as polycarbonate resin that covers the main board 2.
[0051]
 Further, the upper and lower end edges (left and right end edges in FIG. 8) of the chassis 62 have first protrusions 65A, 65B, 65C, 65D, and 66A, 66B, 66C, 66D, which will be described later. They are provided so as to protrude at symmetrical positions (see FIG. 9). Further, at the positions facing the first projecting piece portions 65A to 65D and 66A to 66D on the upper and lower end edges of the open side of the cover member 63, four second projecting piece portions 68A, 68B, 68C, 68D, And 69A, 69B, 69C, and 69D are provided so as to protrude.
[0052]
 Further, as will be described later, the respective locking members 70 and 71 (see FIG. 9) made of brown synthetic resin are fitted into the second projecting pieces 68A and 69A from the upper side, and the chassis 62 of the cover member 63 is inserted. The attachment to is sealed (see FIG. 10).
[0053]
 Next, the configurations of the first projecting piece portions 65A to 65D, 66A to 66D, the second projecting piece portions 68A to 68D, 69A to 69D, and the locking members 70 and 71 will be described with reference to FIG. The first projecting piece portions 65A to 65D and 66A to 66D have substantially the same configuration, and the second projecting piece portions 68A to 68D and 69A to 69D have substantially the same configuration. Since the configuration of the locking members 70 and 71 is substantially the same, the configuration of the first protruding piece portion 65A, the second protruding piece portion 68A, and the locking member 70 will be described with reference to FIG. FIG. 9 is an enlarged side cross-sectional view showing main portions of the first projecting piece portion 65A, the second projecting piece portion 68A, and the locking member 70 of the substrate case 61 according to the third embodiment. There is something shown open.
[0054]
 First, as shown in FIG. 9, the first projecting piece portion 65 A projecting from the chassis 62 has a substantially cylindrical shape with a lower end edge thereof closed, and a first mounting hole 74 is formed. . Further, the first projecting piece 65A is formed with a concave portion 73 having a predetermined depth recessed in a ring shape at a position slightly above the inner bottom surface on the inner peripheral surface. The recess 73 engages with a locking projection 70C of the locking member 70 as described later (see FIG. 10).
[0055]
 Further, as shown in FIG. 9, the second projecting piece portion 68A protruding from the open side edge of the cover member 63 has an outer diameter dimension and an inner diameter dimension substantially equal to the first projecting piece portion 65A. It is cylindrical and the upper edge is closed, and a second mounting hole 75 is formed. Further, the second projecting piece 68A is formed with a concave portion 76 of a predetermined depth recessed in a ring shape at a position slightly below the inner ceiling surface on the inner peripheral surface. The recess 76 engages with a locking projection 70C of the locking member 70 as described later (see FIG. 10). The adjacent second projecting piece portions 68A to 68D and 69A to 69D are connected to each other with a beam portion 80 installed thereon.
[0056]
 Further, as shown in FIG. 9, the brown locking member 70 inserted and inserted into the first projecting piece portion 65 A and the second projecting piece portion 68 A has an inner diameter dimension of the first mounting hole 74 and the second mounting hole 75. A disc-shaped plate member 70A having a slightly smaller outer diameter, and two elastic locking pieces 70B, 70B, 70B, 70B that are respectively suspended from the peripheral edge of the upper and lower surfaces of the plate member 70A. Also, the respective locking protrusions 70C, 70C, 70C, 70C are formed at the end portions of the respective elastic locking pieces 70B, 70B, 70B, 70B. The locking projections 70C, 70C, 70C, 70C are elastically engaged with the recesses 73, 76 as will be described later, whereby the first projecting piece 65A and the second projecting piece 68A are connected. Is called.
[0057]
 Next, attachment of the first projecting piece 65A, the second projecting piece 68A, and the locking member 70 configured as described above will be described with reference to FIG. FIG. 10 is a side cross-sectional view showing an attached state of the first projecting piece portion 65A, the second projecting piece portion 68A, and the locking member 70 of the substrate case 61 according to the third embodiment.
 First, the locking portion 23 of the cover member 63 is engaged with the locking port 24 (see FIG. 4) of the chassis 62, and one side edge portion of the cover member 63 is attached to the chassis 62. And the clearance gap which can insert the locking member 70 vertically is provided in the side edge part by the side of the 1st protrusion piece part 65A and the 2nd protrusion piece part 68A. Then, the locking protrusions 70C and 70C on the lower side of the locking member 70 are brought into contact with the upper end edge of the first mounting hole 74 of the first protruding piece 65A. Subsequently, the upper locking projections 70C and 70C of the locking member 70 are brought into contact with the lower edge of the second mounting hole 75 of the second protruding piece 68A. Then, the upper end surface of the first projecting piece portion 65A and the lower end surface of the second projecting piece portion 68A are brought into contact with each other (pressed in the directions of arrows A and B in FIG. 9). As a result, the locking projections 70C, 70C, 70C, 70C of the locking member 70 engage with the recesses 73, 76, and the first projecting piece 65A and the second projecting piece 68A connect the locking member 70. Connected through. Further, the brown locking member 70 can be confirmed at a glance through the second projecting piece portion 68A of the transparent synthetic resin cover member 63.
 The first projecting piece portion 66A, the second projecting piece portion 69A, and the locking member 71 are similarly attached. Thereby, the attachment of the cover member 63 to the chassis 62 is sealed.
[0058]
 Further, the method of releasing the sealing of the attachment of the cover member 63 to the chassis 62 is substantially the same as in the first embodiment (see FIG. 4), and the second projecting piece 68A and the second projecting piece 68B The first projecting portion is cut by notching the beam portion 80 that couples the first projecting portion 68A and the connecting portion between the second projecting piece portion 68A and the cover member 63 and the connecting portion between the first projecting piece portion 65A and the chassis 62. The piece 65A and the second projecting piece 68A are removed from the substrate case 61. Subsequently, the beam portion 80 that connects the second projecting piece portion 69A and the second projecting piece portion 69B is cut out, the connecting portion between the second projecting piece portion 69A and the cover member 63, and the first projecting piece portion. The first projecting piece portion 66 A and the second projecting piece portion 69 A are removed from the substrate case 61 by cutting out the connecting portion between 66 A and the chassis 62. Thereby, sealing of the attachment of the cover member 63 to the chassis 62 can be released.
 After that, the cover member 63 is attached to the chassis 62, and the separately supplied locking members 70, 71 are provided at the first projecting piece portions 65B, 66B and the second projecting piece portions 68B, 69B that have not been cut out. Can be sealed again by attaching the cover member 63 to the chassis 62. In other words, in the substrate case 61 according to the third embodiment, the cover member 63 can be sealed by being attached to the chassis 62 four times.
[0059]
 As described in detail above, in the board case 61 of the pachinko machine according to the third embodiment, the cover member 63 is attached to the chassis 62 by engaging the locking portion 23 of the cover member 63 with the locking port 24 of the chassis 62. . And the clearance gap which can insert the locking member 70 vertically is provided in the side edge part by the side of the 1st protrusion piece part 65A and the 2nd protrusion piece part 68A. Subsequently, the first projecting piece portions 65A, 66A and the second projecting piece portions 68A, 69A sandwich the locking members 70, 71 inside, thereby sealing the attachment of the cover member 63 to the chassis 62. It can be carried out. Further, the sealing is released by notching the first projecting piece portions 65A and 66A and the second projecting piece portions 68A and 69A from the cover member 63 and the chassis 62.
[0060]
 Accordingly, the locking members 70 and 71 are locked inside the first protrusions 65A and 66A and the second protrusions 68A and 69A. It is possible to prevent the seal from being freely touched and to effectively prevent the seal from being tampered with. In addition, since each of the locking members 70 and 71 can be sealed by being sandwiched inside the first mounting hole 74 and the second mounting hole 75, the sealing can be easily performed and workability can be improved. Can be improved. Further, since the recesses 73 and 76 are easy to manufacture, the manufacturing cost can be reduced.
 Further, the sealing is released by cutting out the first protrusions 65A and 66A and the second protrusions 68A and 69A into which the locking members 70 and 71 are inserted from the chassis 62 and the cover member 63. Thus, the cover member 63 can be removed from the chassis 62. Further, in each of the first projecting piece portions 65B to 65D, 66B to 66D and the second projecting piece portions 68B to 68D and 69B to 69D that have not been cut out yet, the locking members 70 and 71 are sandwiched between them. Thus, the attachment of the cover member 63 to the chassis 62 can be sealed again.
 Further, since each of the locking members 70 and 71 can be seen through the transparent synthetic resin cover member 63, it is possible to easily and effectively confirm the sealing by the locking members 70 and 71. Become.
 Further, since the locking members 70 and 71 are browned, it is possible to more easily and more effectively check the sealing by the locking members 70 and 71.
 Furthermore, since the main substrate 2 is mounted in the substrate case 61, it is possible to repeatedly and effectively inspect the main substrate 2 being sealed.
[0061]
 The present invention is not limited to the first to third embodiments, and various improvements and modifications can be made without departing from the gist of the present invention. May be.
 (A) In the first to third embodiments, the locking members 10, 12, 40, 41, 70, 71 are separately supplied, but can be removed in the substrate cases 1, 31, 61, etc. You may wear it.
 (B) In the first to third embodiments, each of the locking members 10, 12, 40, 41, 70, 71 is colored brown. However, the color to be colored is arbitrary, and the fluorescent color or the like is used. It may be colored.
[0062]
【The invention's effect】
 As described above, the present invention can prevent free contact with the sealing portion with respect to the circuit board after sealing, and can effectively prevent the sealing from being illegally removed. A substrate case of a pachinko machine that can be easily sealed and can improve workability can be provided.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a substrate case of a pachinko machine according to a first embodiment.
FIG. 2 is a side cross-sectional view showing each first projecting piece portion, each second projecting piece portion, a locking member, and a screw of the substrate case according to the first embodiment.
FIG. 3 is a side cross-sectional view showing a state in which each first protruding piece portion, each second protruding piece portion, a locking member, and a screw of the substrate case according to the first embodiment are attached.
FIG. 4 is a plan view showing an example when the sealing of the substrate case according to the first embodiment is released.
FIG. 5 is an exploded perspective view showing a substrate case of a pachinko machine according to a second embodiment.
FIG. 6 is a side sectional view showing each first protruding piece portion, each second protruding piece portion, and a locking member of a substrate case according to the second embodiment.
FIG. 7 is a side sectional view showing a state in which each first protruding piece portion, each second protruding piece portion, and a locking member of the substrate case according to the second embodiment are attached.
FIG. 8 is an exploded perspective view showing a substrate case of a pachinko machine according to a third embodiment.
FIG. 9 is an enlarged side cross-sectional view of a main part showing a first projecting piece part, a second projecting piece part, and a locking member of a substrate case according to a third embodiment, and shows a vertical interval. There is something.
FIG. 10 is a side sectional view showing an attachment state of a first projecting piece part, a second projecting piece part, and a locking member of a substrate case according to a third embodiment.
FIG. 11 is an exploded perspective view showing a sealing structure of a circuit board of a pachinko machine according to a conventional example.
12 is a view of a pachinko machine according to a conventional example as seen from the direction of arrow P in FIG. 11, and the first projecting piece, the second projecting piece, and a part of the screw are shown in cross section. is there.
FIG. 13 is a cross-sectional view showing an example when a main board of a pachinko machine according to a conventional example is sealed with a chassis and a cover.
FIG. 14 is a plan view showing an example when the sealing of the circuit board of the pachinko machine according to the conventional example is released.
[Explanation of symbols]
 1, 31, 61 Board case
 2 Main board
 3, 32, 62 Chassis
 4, 33, 63 Cover member
 5A-5D, 6A-6D, 35A-35D, 36A-36D, 65A-65D, 66A-66D First protrusion
 8A-8D, 9A-9D, 38A-38D, 39A-39D, 68A-68D, 69A-69D Second projecting piece
 7, 37 Locking hole
 10, 11, 40, 41, 70, 71 Locking member
 10A, 40A, 70A Plate member
 10B, 40B, 70B Elastic locking piece
 10C, 40C, 70C Locking protrusion
 11, 13 Screw
 15, 45, 74 First mounting hole
 18, 48 Contact part
 19, 47, 75 Second mounting hole
 20, 50, 80 Beam
 73, 76 recess

Claims

A circuit board for controlling the operating state of the pachinko machine,
A chassis on which the circuit board is fixed;
A box-shaped cover member that is substantially the same size as the chassis and is attached to cover the circuit board;
In the substrate case of the pachinko machine provided with sealing means for sealing the attachment of the cover member to the chassis,
A plurality of first protrusions projecting from the chassis;
A plurality of second projecting pieces projecting at positions facing each of the first projecting pieces of the cover member;
The sealing means includes a locking member having a locking projection formed at one end,
A first mounting hole of at least one predetermined depth formed in each of the first projecting piece portions of the chassis and into which the locking member is fitted from one end side;
In each of the second projecting piece portions of the cover member, a second mounting hole formed at a position facing the first mounting hole and having a predetermined depth into which the locking member is inserted from one end side;
A recess formed on one of the first mounting hole and the second mounting hole and engaged with a locking projection of the locking member;
The first mounting hole or the second mounting hole in which the concave portion is formed has its outer end surface portion closed, and the first mounting hole or the second mounting hole in which the concave portion is not formed has an outer end surface portion open. Has been
The first mounting hole or the second mounting hole in which the concave portion is not formed has an abutting portion that is formed on the inner end surface portion and abuts on the locking member,
The first mounting hole or the second mounting hole in which the concave portion is formed has a mounting boss that is suspended from the center position of the inner bottom surface to the same height as the upper end surface of the contact portion,
The locking member includes a plate member that contacts the contact portion ;
A plurality of elastic locking pieces formed on an end portion of the plate member and suspended on a surface of the plate member in contact with the corresponding contact portion;
The locking member includes a first mounting hole and a first mounting hole so that the plate member contacts the contact portion and the mounting boss from an outer end surface portion of the first mounting hole or the second mounting hole in which the concave portion is not formed. The first mounting hole and the second mounting hole are connected by being fitted into the second mounting hole and the locking projection is engaged with the recess, and the mounting of the cover member to the chassis is sealed. Stopped ,
The first projecting piece portion and the second projecting piece portion in which the first mounting hole and the second mounting hole into which the locking member is inserted are formed are cut out from the chassis and the cover member, thereby the sealing. pachinko machine board case characterized by Rukoto sealing with means is released.