JP3691041B2 - Mechanism for preventing unauthorized opening of circuit board case - Google Patents

Mechanism for preventing unauthorized opening of circuit board case Download PDF

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JP3691041B2
JP3691041B2 JP2003080571A JP2003080571A JP3691041B2 JP 3691041 B2 JP3691041 B2 JP 3691041B2 JP 2003080571 A JP2003080571 A JP 2003080571A JP 2003080571 A JP2003080571 A JP 2003080571A JP 3691041 B2 JP3691041 B2 JP 3691041B2
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JP2004283444A5 (en
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利道 菅井
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Sammy Corp
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Sammy Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、パチンコ機やスロットマシン等の遊技機において遊技機の作動を制御する制御基板等を収容する基板ケースに関し、さらに詳しくは、制御基板等を収容した状態の基板ケースを不正に開放できなくして制御基板等に対する不正行為を防止する基板ケースの不正開放防止機構に関する。
【０００２】
【従来の技術】
パチンコ機やスロットマシン等の遊技機では遊技機の作動を制御する制御基板が設けられている。例えば、パチンコ遊技機では外枠に対して開閉可能に組み付けられた前枠裏側の収容枠に遊技盤及び裏機構盤が装備され、この裏機構盤に制御基板が取り付けられている。スロットマシンにおいても同様に、開閉カバーの裏面に制御基板が取り付けられている。
【０００３】
これらの制御基板は、賞球もしくはメダルの払出制御、電動役物の開閉制御、リールの回転制御、図柄組み合わせの発生確率制御など、パチンコ遊技機もしくはスロットマシンの作動を制御する基板であり、遊技機の制御ソフトウェアが記録されたＲＯＭが搭載されて遊技機の作動を制御する中枢制御装置としての役割を有している。このため、制御基板は偽造ＲＯＭへの差し替え等の不正改造を受け難いように基板ケース内に収容されるとともに、この基板ケースはケースを開いたときにその痕跡が残るような不正開放（もしくは不正着脱）防止手段が設けられて構成されている。
【０００４】
このような不正開放防止手段として、例えば、切断可能な複数のネジ締結対を特殊ネジで締結する手段がある。これは、ケース本体部材とこのケース本体部材に開閉自在に装着されるケース蓋部材とからなる基板ケースにおいて、ケース本体部材及びケース蓋部材のそれぞれの側縁部に相対応するネジ螺合部及びネジ貫通部からなるネジ締結対を複数対形成し、このうち少なくとも１対のネジ螺合部とネジ貫通部とを締め込み方向にのみ操作可能な特殊ネジ（ネジ頭部のスリ割りがネジ締め方向のみに係合部を有して形成され、緩める方向の係合部が螺旋状に除去されているネジ、以下本明細書で「一方向ネジ」という）で締結する構成からなっている。なお、この構成において、ケース蓋部材とネジ貫通部との間には切断可能な切断部が形成されている。例えば、特開平１０−３２８３８５号公報や、特開平１１−２２６２２０号公報にこのような構成が開示されている。
【０００５】
上記の不正開放防止手段では、管理者が制御基板の保守点検等のために基板ケースを開くときには、一方向ネジで締結された締結対の切断部をニッパ等の工具で切断し、ネジ貫通部をケース蓋部材から切り離すことでケース蓋部材とケース本体部材との接続を解除してケース蓋部材を開放する。このようにケース蓋部材を開放して保守点検が行われるが、この保守点検完了後には未だ締結していない他の締結対を一方向ネジを用いて締結しケース本体部材にケース蓋部材を装着・閉鎖する。さらに、基板ケースには基板管理番号と開封履歴を表示する基板管理シールが貼られており、開封した管理者がこの基板管理シールに開封年月日と開封者氏名を記載して管理するようになっている。
【０００６】
上記のような不正開放防止手段によれば、一方向ネジは一般にネジを緩める方向に回転させることができず、基板ケースを開く時には切断部を切り離す必要があることから、基板ケース開放後にその切断痕跡が明確に残り、不正な開封を早期に発見することができる。
【０００７】
【特許文献１】
特開平１０−３２８３８５号公報
【特許文献２】
特開平１１−２２６２２０号公報
【０００８】
【発明が解決しようとする課題】
しかしながら、上記の不正開放防止手段では、締結手段として一方向ネジを使用しているため、ネジ締結対を締結させる際にはドライバ等の工具を用いなければならず、締結作業が面倒なものとなっていた。また、基板ケースが不正開放された後、複製した基板ケースに制御基板等が移し替えられてしまうと、基板ケース開放時の切断痕跡が残らず、不正な開封を早期に発見できなくなるおそれがあった。
【０００９】
本発明は、このような問題に鑑みて成されたものであり、より簡便な構成で複製されにくい基板ケースの不正開放防止機構を提供することを目的とする。
【００１０】
【課題を解決するための手段】
このような目的達成のため、本発明に係る基板ケースの不正開放防止機構は、ケース本体部材と、ケース本体部材に開閉可能に装着されるケース蓋部材とを備え、ケース本体部材にケース蓋部材を閉止状態で装着して形成されるケース内部に遊技機に搭載された電子部品を制御する制御基板を収容する基板ケースにおいて、ケース本体部材に連結して設けられた本体側係合部と、ケース蓋部材に連結して設けられた蓋側係合部と、本体側係合部と蓋側係合部とを連結可能な接続部材とを備え、接続部材を用いて本体側係合部と蓋側係合部とを連結させることでケース蓋部材がケース本体部材に閉止状態で装着された状態を保持し、本体側係合部および蓋側係合部の少なくともいずれかにおけるケース本体部材もしくはケース蓋部材との連結部を切断することでケース本体部材からケース蓋部材を開放することができるように構成された基板ケースの不正開放防止機構である。
【００１１】
そして、この不正開放防止機構は、本体側係合部が、ケース本体部材に一体に設けられ、蓋側係合部と連結される側の一端が開口した本体側収容空間が形成された本体側収容部と、本体側収容空間内に固設されて前記接続部材と係合可能な本体側係合補助部材とから構成され、蓋側係合部が、ケース蓋部材に一体に設けられ、本体側係合部と連結される側の一端が開口した蓋側収容空間が形成された蓋側収容部と、蓋側収容空間内に固設されて接続部材と係合可能な蓋側係合補助部材とから構成されており、接続部材を本体側係合補助部材と蓋側係合補助部材とに係合させることにより、本体側係合部と蓋側係合部とが連結されるように構成されている。
【００１２】
このような構成の基板ケースの不正開放防止機構によれば、接続部材を本体側係合補助部材と蓋側係合補助部材とに係合させることにより、本体側係合部と蓋側係合部とが連結されるため、本体側係合部と蓋側係合部とを容易に連結させることができ、ケース本体部材とケース蓋部材とを閉止状態で容易に結合保持することができる。
【００１３】
また、本体側係合部および蓋側係合部の少なくともいずれかにおけるケース本体部材もしくはケース蓋部材との連結部が切断可能に構成されているため、この連結部を切断すればケース本体部材からケース蓋部材を外すことができるが、このように連結部を切断したときにはその破壊痕跡が残るためこれを容易に発見でき、不正行為を効果的に抑止できる。さらに、本体側係合部が別体の本体側収容部と本体側係合補助部材とから構成され、蓋側係合部が別体の蓋側収容部と蓋側係合補助部材とから構成されるため、本体側係合部および蓋側係合部（すなわち、ケース本体部材およびケース蓋部材）の複製がより難しくなり、不正行為の抑止が期待できる。
なお、本体側係合補助部材が接続部材の一端側を収容して係合可能な本体側係合空間を有して構成され、本体側係合空間が蓋側係合部と連結される側に開口するようにして本体側係合補助部材が本体側収容空間内に収容されるとともに溶着もしくは接着されて本体側係合部に固設され、蓋側係合補助部材が接続部材の他端側を収容して係合可能な蓋側係合空間を有して構成され、蓋側係合空間が本体側係合部と連結される側に開口するようにして蓋側係合補助部材が蓋側収容空間内に収容されるとともに溶着もしくは接着されて蓋側係合部に固設されるのが好ましい。さらに、本体側係合部および蓋側係合部が透明樹脂材料から作られ、本体側係合補助部材および蓋側係合補助部材が有色樹脂材料から作られているのが好ましい。これにより、本体側係合部および蓋側係合部（すなわち、ケース本体部材およびケース蓋部材）の複製等の不正行為をより確実に防止できる。
【００１４】
【発明の実施の形態】
以下、本発明の好ましい実施形態について図面を参照しながら説明する。本発明に係る基板ケースの不正開放防止機構を備えた遊技機の代表例としてパチンコ機ＰＭを図１および図２に示しており、まず、これらの図面を参照しながらパチンコ機ＰＭの全体構成について要約説明する。ここで、図１はパチンコ機ＰＭの正面図、図２はパチンコ機ＰＭの背面図である。
【００１５】
パチンコ機ＰＭは外郭方形枠サイズに構成されて縦向きの固定保持枠をなす外枠１の開口前面に、これに合わせた方形枠サイズに構成される開閉搭載用の前枠２が互いの正面左側上下に配設されたヒンジ部材３ａ，３ｂで横開き開閉および着脱が可能に取り付けられ、正面右側に設けられた施錠装置４を利用して常には外枠１と係合された閉鎖状態に保持される。
【００１６】
前枠２の各部にはパチンコ遊技を展開する遊技展開部材として、前枠２の前側面域に合わせた方形状のガラス扉５および球皿６が正面左側部に設けられたヒンジ機構７ａ，７ｂ，７ｃを利用して横開き開閉および着脱が可能に組付けられ、球皿６の右側下部には遊技球の発射操作を行う操作ハンドル８が装備されている。前枠２の中央部から上部にかけて後方に突出する方形枠状の収容枠（図示せず）が前枠２と一体に形成されており、この収容枠に所定のゲージ設定で構成された遊技盤１０が着脱可能にセット保持され、常には閉鎖保持されるガラス扉５に遊技盤正面の遊技領域ＰＡを臨ませている。
【００１７】
前枠２の裏面側には、中央に前後連通する窓口を有して前枠２よりもやや小型の方形枠状に形成された裏セット盤３０が、前枠２の裏面に設けられた複数のレバーＬ，Ｌ…を利用して着脱可能にセット保持される。裏セット盤３０の各部には遊技球を貯留する球貯留タンク３１、タンクレール３２、整列待機通路３３、賞球カセット３４、賞球排出通路３５などの賞球装置が装備されるとともに、裏面各部に電源基板アッセンブリ４０や主基板アッセンブリ５０等の各種制御基板アッセンブリが取り付けられている。
【００１８】
球皿６に前面側が覆われた前枠２の下部領域には遊技補助盤（図示せず）と称される補助機構部が形成されており、この遊技補助盤の各部に、打球発射装置（図示せず）や、裏セット盤３０側の賞球排出通路３５と繋がり球皿６に排出できない遊技球を一時貯留する貯留カセット（図示せず）などが設けられている。
【００１９】
パチンコ機ＰＭは、前枠２、ガラス扉５および球皿６がともに閉止され施錠された状態で遊技に供され、球皿６に遊技球を貯留させて操作ハンドル８を回動操作することにより遊技が開始される。操作ハンドル８が回動操作されると、球皿６に貯留された遊技球が打球発射装置により１球ずつ遊技盤１０の遊技領域ＰＡに打ち出され、以降パチンコゲームが展開される。
【００２０】
以上のように概要構成されるパチンコ機ＰＭにあって、主基板アッセンブリ５０に不正開放防止機構が設けられている。以下、主基板アッセンブリ５０について図３〜図８を参照しながら説明する。ここで、図３は主基板アッセンブリ５０の斜視図、図４は主基板アッセンブリ５０の側断面図、図５は主基板アッセンブリ５０の分解斜視図、図６は主基板アッセンブリ５０に構成されるケース蓋部材７０の背面図、図７（ａ）は係止アーム６３が係止突起７５に係止した状態を示す拡大図、図７（ｂ）は係止アーム６３が係止突起７５に係止した状態を示す拡大側断面図、図８（ａ）は係止アーム６３が係止突起７５に係止する前の状態を示す拡大図、そして図８（ｂ）は係止アーム６３が係止突起７５に係止する前の状態を示す拡大側断面図である。
【００２１】
主基板アッセンブリ５０は、図３〜図５に示すように、パチンコ機ＰＭの作動を統括的に制御する主制御基板５１と、主制御基板５１を内部に収容する主基板ケース５５とを主体に構成される。さらに、主基板ケース５５は、パチンコ機ＰＭの裏セット盤３０に固定されるケース本体部材６０と、ケース本体部材６０に開閉自在に取り付けられるケース蓋部材７０と、主制御基板５１の裏面側を覆う内部カバー８０とを備え、主制御基板５１および内部カバー８０がケース蓋部材７０の内面側に取り付けられた状態で、ケース蓋部材７０をケース本体部材６０へ装着可能に構成される。
【００２２】
主制御基板５１は、図５に示すように、主制御基板５１の中央部に配設されたＣＰＵ５２や、主制御基板５１の左側に配設された左側接続コネクタ５３，５３，…、主制御基板５１の右側に配設された右側接続コネクタ５４，５４，…等の電子部品を有して構成される。主制御基板５１の四隅には、基板取付孔５１ａ，５１ａ，…が形成されており、ケース蓋部材７０に形成された基板取付部７１のボス部７１ｂと嵌合するようになっている。主制御基板５１の縁部近傍三箇所には、ピン孔５１ｂ，５１ｂ，５１ｂが形成されており、内部カバー８０の位置決めピン８１，８１，８１と嵌合するようになっている。
【００２３】
ケース本体部材６０は、前面側に開口を有する矩形箱状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等の透明な樹脂材料を用いて射出成形等の成形手段により一体的に成形される。ケース本体部材６０の底部には、補強リブ６１が縦横に形成されており、ケース本体部材６０の強度を向上させるとともに、ケース内部に収容された内部カバー８０が当接して受け止められるようになっている。
【００２４】
ケース本体部材６０の左端部にはヒンジ軸６２，６２が形成されており、ケース蓋部材７０のヒンジアーム７４，７４とそれぞれヒンジ係合するようになっている。ケース本体部材６０の上下側壁外面には、前方に突出する係止アーム６３，６３が形成されており、図７および図８に示すように、ケース蓋部材７０の係止突起７５，７５にそれぞれ係止するようになっている。
【００２５】
ケース本体部材６０の縁部内側には、内側ガードリブ６４が突出して形成されており、ケース蓋部材７０がケース本体部材６０に装着されるときに、ケース蓋部材７０の外側ガードリブ７８の内側に位置するようになっている。ケース本体部材６０の縁部外側には、縁部当接部６５が内側ガードリブ６４に繋がって形成されており、ケース蓋部材７０がケース本体部材６０に装着されるときに、外側ガードリブ７８が縁部当接部６５と当接するようになっている。
【００２６】
ケース蓋部材７０は、ケース本体部材６０の開口を覆う矩形箱状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等の透明な樹脂材料を用いて射出成形等の成形手段により一体的に成形される。図６および図１８に示すように、ケース蓋部材７０の裏面側（内面側）四隅には、ボス形状の基板取付部７１，７１，…がネジ孔７１ａ，７１ａ，…を有して形成されており、主制御基板５１および内部カバー８０が基板取付ネジ８９によりネジ固定されてケース蓋部材７０の内面側に取り付けられるようになっている。
【００２７】
基板取付部７１の先端部には、主制御基板５１と同等の厚さを有し、主制御基板５１の基板取付孔５１ａより僅かに小さい径を有するボス部７１ｂが、基板取付部７１の先端において主制御基板５１の前面が当接する基板取付面７１ｃ（図１８を参照）より突出して形成されており、基板取付孔５１ａと嵌合可能に構成されている。
【００２８】
ケース蓋部材７０の左側には、左コネクタ開口部７２が形成されており、図３および図１７に示すように、ケース蓋部材７０がケース本体部材６０に装着された状態で、主制御基板５１の左側接続コネクタ５３，５３，…が外部に露出するように構成されている。ケース蓋部材７０の右側には、右コネクタ開口部７３，７３，…が形成されており、ケース蓋部材７０がケース本体部材６０に装着された状態で、主制御基板５１の右側接続コネクタ５４，５４，…が外部に露出するように構成されている。なお、左右のコネクタ開口部７２，７３の周部（リブの部分）は、主制御基板５１の前面側に当接することが好ましい。これにより、左右のコネクタ開口部７２，７３から針金やセル板等の道具がケース内部に挿入されるのを防止することができる。
【００２９】
ケース蓋部材７０の左端部には、図６に示すように、ヒンジアーム７４，７４が形成されており、ケース本体部材６０のヒンジ軸６２，６２とそれぞれヒンジ係合するようになっている。そして、ケース本体部材６０のヒンジ軸６２，６２とケース蓋部材７０のヒンジアーム７４，７４とをそれぞれヒンジ係合させることで、ケース蓋部材７０がケース本体部材６０に対しヒンジ軸６２を中心軸として揺動開閉自在に取り付けられる。
【００３０】
ケース蓋部材７０の上下側壁外面には、ケース本体部材６０の係止アーム６３，６３とそれぞれ係止可能な係止突起７５，７５が形成されている。そして、図７（ａ）に示すように、ケース蓋部材７０をケース本体部材６０の上に重ねて（揺動させて）閉止状態にすると、係止アーム６３，６３が係止突起７５，７５にそれぞれ係止して、ケース蓋部材７０がケース本体部材６０に対して閉止状態のまま装着保持されるようになっている。
【００３１】
係止突起７５の前方（図７および図８における上方）には係止補助突起７６が形成されており、図７（ａ）に示すように、係止アーム６３が係止突起７５に係止した状態で、係止補助突起７６が係止アーム６３の先端に（係止突起７５と反対側に）隣接するようになっている。これにより、係止アーム６３の先端に指または道具を引っ掛けることが難しくなるため、係止アーム６３の係止突起７５に対する係止状態が容易に解除されることを防止することができる。
【００３２】
なお、係止補助突起７６は、係止アーム６３が係止突起７５に係止した状態で、係止アーム６３の先端および両側部に隣接するように形成されてもよい。このようにすれば、係止アーム６３の先端に加え係止アーム６３の両側部に指または道具を引っ掛けることが難しくなるため、係止アーム６３の係止突起７５に対する係止状態が容易に解除されることをより確実に防止することができる。
【００３３】
係止突起７５の右方（図６における左方）には、指掛け部７７，７７が形成されており、係止アーム６３が係止突起７５に係止していない状態で、作業者がこの指掛け部７７，７７に指を掛けることで、ケース蓋部材７０をケース本体部材６０に対して揺動開閉させ易いようになっている。
【００３４】
ケース蓋部材７０の縁部外側には、外側ガードリブ７８が突出して形成されており、図７（ｂ）に示すように、ケース蓋部材７０がケース本体部材６０に装着されるときに、ケース本体部材６０における内側ガードリブ６４の外側に位置して、ケース本体部材６０の縁部当接部６５に当接するようになっている。
【００３５】
これにより、ケース蓋部材７０の縁部（外側ガードリブ７８）とケース本体部材６０の縁部（縁部当接部６５）との間に若干の隙間を生じさせて、この隙間から針金やセル板等の道具（図示せず）をケース内部に挿入しようとしても、これらの道具をケース蓋部材７０の外側ガードリブ７８とケース本体部材６０の内側ガードリブ６４との間に形成されたラビリンス形状の僅かな隙間に通過させなければならないため、針金やセル板等の道具がケース内部に不正に挿入されるのを防止することができる。
【００３６】
ケース蓋部材７０の縁部内側には、基板当接部７９が形成されており、図４に示すように、主制御基板５１がケース蓋部材７０の内面側に取り付けられたときに、主制御基板５１の縁部と当接して主制御基板５１におけるケース蓋部材７０と対向する面（すなわち、主制御基板５１の前面側）がケース蓋部材７０に覆われるように構成されている。
【００３７】
これにより、基板当接部７９が主制御基板５１の縁部と当接して、主制御基板５１におけるケース蓋部材７０と対向する面がケース蓋部材７０に覆われる状態で主制御基板５１がケース蓋部材７０の内面側に取り付けられているため、ケース本体部材６０とケース蓋部材７０との隙間から針金やセル板等の道具がケース内部に挿入されても、これらの道具は主制御基板５１におけるケース蓋部材７０と対向する面に到達できないことから、主制御基板５１に対する不正行為をより確実に防止することができる。
【００３８】
内部カバー８０は、主制御基板５１の形状に合わせた矩形板状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等の透明な樹脂材料を用いて一体的に形成される。内部カバー８０の縁部近傍三箇所には、位置決めピン８１，８１，８１が形成されており、主制御基板５１のピン孔５１ｂ，５１ｂ，５１ｂとそれぞれ嵌合して、内部カバー８０が主制御基板５１の裏面側にちょうど重なるようになっている。さらに、位置決めピン８１は、主制御基板５１のピン孔５１ｂと嵌合した状態で、ケース蓋部材７０に形成された蓋側ピン孔８５（図６を参照）に嵌入されるようになっている。
【００３９】
内部カバー８０の四隅には、内部カバー取付部８２，８２，…がネジ通過孔８２ａ，８２ａ，…を有して形成されており、基板取付ネジ８９によりケース蓋部材７０の基板取付部７１，７１，…にネジ固定されるようになっている。そして、主制御基板５１を所定方向に向けた状態で、基板取付部７１のボス部７１ｂに主制御基板５１の基板取付孔５１ａを嵌合させ、さらに、内部カバー８０の位置決めピン８１を主制御基板５１のピン孔５１ｂに嵌合させるとともにケース蓋部材７０の蓋側ピン孔８５に嵌入して、内部カバー８０を主制御基板５１の裏面側に重ねて載置した状態で、基板取付ネジ８９を内部カバー８０のネジ通過孔８２ａに通過させ基板取付部７１のネジ孔７１ａにネジ固定することにより、主制御基板５１および内部カバー８０がケース蓋部材７０の内面側に取り付けられる。
【００４０】
内部カバー８０の縁部には、周囲リブ８３が主制御基板５１の縁部と当接可能に形成されており、周囲リブ８３が主制御基板５１の縁部と当接した状態で、内部カバー８０により主制御基板５１におけるケース本体部材６０と対向する面（すなわち、主制御基板５１の裏面側）が覆われるように構成されている。
【００４１】
これにより、内部カバー８０の周囲リブ８３が主制御基板５１の縁部と当接し、主制御基板５１におけるケース本体部材６０と対向する面が内部カバー８０に覆われる状態となるため、ケース本体部材６０とケース蓋部材７０との隙間から針金やセル板などの道具がケース内部に挿入されても、これらの道具は主制御基板５１における（ケース蓋部材７０と対向する面に加えて）ケース本体部材６０と対向する面に到達できないことから、主制御基板５１に対する不正行為をより確実に防止することができる。
【００４２】
このようにして、ケース蓋部材７０がケース本体部材６０の開口を覆う閉止状態でケース本体部材６０に装着されているときには、係止アーム６３が係止突起７５に係止しているだけであり、ケース蓋部材７０をケース本体部材６０に対して容易に開放させることができる。そこで、閉止状態で装着されたケース蓋部材７０を開放できなくして不正操作を防止するために、基板アッセンブリ５０には不正開放防止機構が設けられている。そこで、図９〜１８図を追加参照しつつ、基板アッセンブリ５０に設けられた不正開放防止機構１００について以下に詳しく説明する。
【００４３】
ここで、図９は不正開放防止機構１００に構成される本体側係合部１１０の分解斜視図、図１０は不正開放防止機構１００に構成される蓋側係合部１２０の分解斜視図、図１１は本体側係合部１１０の正面図、図１２は蓋側係合部１２０の背面図、図１３は不正開放防止機構１００に構成される接続部材１５０の斜視図、図１４は図１３中の接続部材１５０を反対側から見た斜視図である。
【００４４】
また、図１５（ａ）は接続部材１５０の長方形断面における長辺方向から見た側面図、図１５（ｂ）は図１５（ａ）中の矢印XV−XVに沿った平断面図、図１６（ａ）は接続部材１５０の長方形断面における短辺方向から見た側面図、図１６（ｂ）は図１６（ａ）中の矢印XVI−XVIに沿った平断面図、図１７は閉止状態の主基板アッセンブリ５０の側断面図、そして図１８は開放状態の主基板アッセンブリ５０の側断面図である。
【００４５】
不正開放防止機構１００は、ケース本体部材６０に連結して設けられた４つの本体側係合部１１０，１１０，…と、ケース蓋部材７０に連結して設けられた４つの蓋側係合部１２０，１２０，…と、本体側係合部１１０と蓋側係合部１２０とをそれぞれ連結させる４つ接続部材１５０，１５０，…とを備え、ケース蓋部材７０をケース本体部材６０へ装着したときに本体側係合部１１０と蓋側係合部１２０とを連結可能に構成される。
【００４６】
本体側係合部１１０は、ケース本体部材６０に一体に設けられた本体側収容部１１１と、本体側収容部１１１に固設された本体側係合補助部材１３０とから構成される。本体側収容部１１１は、図９に示すように、ケース本体部材６０の右端において、前面側（図９における上方）が開口した直方体箱状にケース本体部材６０と（透明な樹脂材料を用いて）一体に形成される。また、本体側収容部１１１の内部には、本体側係合補助部材１３０を収容可能な本体側収容空間ＨＳ１が形成される。本体側収容部１１１の内面側における長方形断面の短辺を形成して対向する２面には、本体側取付ガイド溝１１２，１１２が凹状に形成されており、本体側係合補助部材１３０の本体側取付ガイド部１３１，１３１とそれぞれ係合するようになっている。
【００４７】
本体側収容部１１１の前面側縁部における長方形断面の長辺を形成して対向する２辺には、本体側連結ガイドリブ１１３，１１３が突出して形成されており、蓋側係合部１２０の蓋側リブ係合部１２４，１２４とそれぞれ係合するようになっている。本体側収容部１１１の前面側縁部における長方形断面の短辺を形成して対向する２辺には、本体側リブ係合部１１４，１１４が形成されており、蓋側係合部１２０の蓋側連結ガイドリブ１２３，１２３とそれぞれ係合するようになっている。
【００４８】
蓋側係合部１２０は、ケース蓋部材７０に一体に形成された蓋側収容部１２１と、蓋側収容部１２１に固設された蓋側係合補助部材１４０とから構成される。蓋側収容部１２１は、図１０に示すように、ケース蓋部材７０の右端において、裏面側（図１０における上方）が開口した直方体箱状にケース蓋部材７０と一体に形成され、ケース蓋部材７０をケース本体部材６０へ装着したときに本体側収容部１１１と対向して重なるように構成される。また、蓋側収容部１２１の内部には、蓋側係合補助部材１４０を収容可能な蓋側収容空間ＨＳ２が形成されている。蓋側収容部１２１の内面側における長方形断面の長辺を形成して対向する２面には、蓋側取付ガイド溝１２２，１２２が凹状に形成されており、蓋側係合補助部材１４０の蓋側取付ガイド部１４１，１４１とそれぞれ係合するようになっている。
【００４９】
蓋側収容部１２１の裏面側縁部における長方形断面の短辺を形成して対向する２辺には、蓋側連結ガイドリブ１２３，１２３が突出して形成されており、蓋側収容部１２１が本体側収容部１１１と対向して重なるときに、本体側収容部１１１の本体側リブ係合部１１４，１１４とそれぞれ係合するようになっている。蓋側収容部１２１の裏面側縁部における長方形断面の長辺を形成して対向する２辺には、蓋側リブ係合部１２４，１２４が凹状に形成されており、蓋側収容部１２１が本体側収容部１１１と対向して重なるときに、本体側収容部１１１の本体側連結ガイドリブ１１３，１１３とそれぞれ係合するようになっている。
【００５０】
これにより、蓋側収容部１２１が本体側収容部１１１と対向して重なるときに、本体側連結ガイドリブ１１３，１１３と蓋側リブ係合部１２４，１２４とがそれぞれ係合するとともに、蓋側連結ガイドリブ１２３，１２３と本体側リブ係合部１１４，１１４とがそれぞれ係合するため、蓋側収容部１２１（蓋側係合部１２０）の本体側収容部１１１（本体側係合部１１０）に対する位置合わせをより確実に行うことができる。
【００５１】
蓋側係合部１２０（蓋側収容部１２１）とケース蓋部材７０との連結部１２５（図６および図１２を参照）は切断可能に構成されており、この連結部１２５を切断して蓋側係合部１２０（蓋側収容部１２１）とケース蓋部材７０とを分離することができるようになっている。なお、前述したように、主基板ケース５５（ケース本体部材６０およびケース蓋部材７０）の材料として透明な樹脂材料を使用しているが、その中でもＡＢＳ樹脂を使用することが好ましい。これにより、上記のような部材に対する切断操作を行うと、ＡＢＳ樹脂の成分であるブタジエンがゴム性を有して伸び、部材が割れずに白化しやすいため、その切断痕跡が明確に残りやすいという効果が得られる。また、主基板ケース５５を無理にこじ開けようとしても、同様に部材が白化して（こじ開けた）痕跡が明確に残りやすいという効果が得られる。
【００５２】
本体側係合補助部材１３０は、図９に示すように、前面側（図９における上方）に開口を有する直方体箱状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等による有色半透明な樹脂材料を用いて射出成形等の成形手段により一体的に成形され、本体側収容部１１１の本体側収容空間ＨＳ１内へ収容可能に構成される。また、本体側係合補助部材１３０の内部には、接続部材１５０の半分を収容可能な本体側係合空間ＣＳ１が形成される。
【００５３】
本体側係合補助部材１３０の外面側における長方形断面の短辺を形成して対向する２面には、本体側取付ガイド部１３１，１３１が凸状に形成されており、本体側収容部１１１の本体側取付ガイド溝１１２，１１２とそれぞれ係合するようになっている。そして、本体側収容部１１１の開口側（前面側）から、本体側取付ガイド部１３１，１３１を本体側取付ガイド溝１１２，１１２と係合させつつ本体側係合補助部材１３０を本体側収容部１１１の本体側収容空間ＨＳ１内へ挿入し、この状態で本体側係合補助部材１３０を本体側収容部１１１に溶着させることにより、図１１に示すように、本体側係合補助部材１３０が本体側収容部１１１の本体側収容空間ＨＳ１内に固設される。なお、本体側係合補助部材１３０を本体側収容部１１１に固定する手段として、溶着に限らず、例えば接着剤等を使用してもよい。
【００５４】
このとき、本体側係合補助部材１３０が本体側収容部１１１の本体側収容空間ＨＳ１内に固設されることで、本体側収容部１１１、すなわち本体側係合部１１０の内部に本体側係合空間ＣＳ１が（本体側収容空間ＨＳ１に替わり）形成される。このようにして、本体側係合部１１０が別体の本体側収容部１１１と本体側係合補助部材１３０とから構成されているため、本体側係合部１１０（すなわち、ケース本体部材６０）の複製がより難しくなり、不正行為の抑止が期待できる。また、本体側収容部１１１の材質が透明の樹脂材料であるのに対し、本体側係合補助部材１３０の材質は本体側収容部１１１と異なる有色半透明の樹脂材料であるため、本体側収容部１１１に正規の本体側係合補助部材１３０が固設されているか否か、すなわちケース本体部材６０が複製品であるか否かを容易に判別することができる。
【００５５】
本体側係合補助部材１３０における長方形断面の短辺を形成して対向する２面には、本体側穴部１３２，１３２が形成されており、接続部材１５０の本体側係合突起１５１，１５１と係合可能に構成されている。なお、図１１に示すように、本体側係合補助部材１３０が本体側収容部１１１に固設された状態では、本体側穴部１３２の外側は本体側収容部１１１に塞がれ、本体側係合補助部材１３０、すなわち本体側係合部１１０の内面側における長方形断面の短辺を形成して対向する２面には、接続部材１５０の本体側係合突起１５１と係合可能な本体側凹部１３２ａが形成される。
【００５６】
本体側係合補助部材１３０の内面側における長方形断面の長辺を形成して対向する２面には、本体側突起ガイド部１３３，１３３が形成されており、接続部材１５０の蓋側係合突起１５２，１５２を収容可能に構成されている。
【００５７】
蓋側係合補助部材１４０は、図１０に示すように、裏面側（図１０における上方）に開口を有する直方体箱状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等による有色半透明な樹脂材料を用いて射出成形等の成形手段により一体的に成形され、蓋側収容部１２１の蓋側収容空間ＨＳ２内へ収容可能に構成される。また、蓋側係合補助部材１４０の内部には、接続部材１５０の半分を収容可能な蓋側係合空間ＣＳ２が形成される。
【００５８】
蓋側係合補助部材１４０の外面側における長方形断面の長辺を形成して対向する２面には、蓋側取付ガイド部１４１，１４１が凸状に形成されており、蓋側収容部１２１の蓋側取付ガイド溝１２２，１２２とそれぞれ係合するようになっている。そして、蓋側収容部１２１の開口側（裏面側）から、蓋側取付ガイド部１４１，１４１を蓋側取付ガイド溝１２２，１２２と係合させつつ蓋側係合補助部材１４０を蓋側収容部１２１の蓋側収容空間ＨＳ２内へ挿入し、この状態で蓋側係合補助部材１４０を蓋側収容部１２１に溶着させることにより、図１２に示すように、蓋側係合補助部材１４０が蓋側収容部１２１の蓋側収容空間ＨＳ２内に固設される。なお、係合補助部材１４０を蓋側収容部１２１に固定する手段として、溶着に限らず、例えば接着剤等を使用してもよい。
【００５９】
このとき、蓋側係合補助部材１４０が蓋側収容部１２１の蓋側収容空間ＨＳ２内に固設されることで、蓋側収容部１２１、すなわち蓋側係合部１２０の内部に蓋側係合空間ＣＳ２が（蓋側収容空間ＨＳ２に替わり）形成される。このようにして、蓋側係合部１２０が別体の蓋側収容部１２１と蓋側係合補助部材１４０とから構成されているため、蓋側係合部１２０（すなわち、ケース蓋部材７０）の複製がより難しくなり、不正行為の抑止が期待できる。また、蓋側収容部１２１の材質が透明の樹脂材料であるのに対し、蓋側係合補助部材１４０の材質は蓋側収容部１２１と異なる有色半透明の樹脂材料であるため、蓋側収容部１２１に正規の蓋側係合補助部材１４０が固設されているか否か、すなわちケース蓋部材７０が複製品であるか否かを容易に判別することができる。
【００６０】
なお、本体側収容部１１１に本体側係合補助部材１３０が固設されるとともに蓋側収容部１２１に蓋側係合補助部材１４０が固設された状態で、本体側収容部１１１（すなわち、本体側係合部１１０）と蓋側収容部１２１（すなわち、蓋側係合部１２０）とがそれぞれ対向して重なったときには、本体側係合空間ＣＳ１と蓋側係合空間ＣＳ２とが繋がって接続部材１５０を配設可能な係合空間ＣＳが形成されるようになっている。
【００６１】
蓋側係合補助部材１４０における長方形断面の長辺を形成して対向する２面には、蓋側穴部１４２，１４２が形成されており、接続部材１５０の蓋側係合突起１５２，１５２と係合可能に構成されている。なお、図１２に示すように、蓋側係合補助部材１４０が蓋側収容部１２１に固設された状態では、蓋側穴部１４２の外側は蓋側収容部１２１に塞がれ、蓋側係合補助部材１４０、すなわち蓋側係合部１２０の内面側における長方形断面の長辺を形成して対向する２面には、接続部材１５０の蓋側係合突起１５２と係合可能な蓋側凹部１４２ａが形成される。
【００６２】
蓋側係合補助部材１４０の内面側における長方形断面の短辺を形成して対向する２面には、蓋側突起ガイド部１４３，１４３が形成されており、接続部材１５０の本体側係合突起１５１，１５１を収容可能に構成されている。
【００６３】
接続部材１５０は、図１３〜図１６に示すように、一端に開口を有する中空直方体状の形態をなし、ＡＢＳ樹脂やポリカーボネート（ＰＣ）等の樹脂材料を用いて射出成形等の成形手段により一体的に成形される。また、接続部材１５０は、係合空間ＣＳ内に、接続部材１５０の一端側が本体側係合部１１０を向くロック方向およびロック方向とは逆のアンロック方向を向いて配設可能に構成される。
【００６４】
接続部材１５０の一端側における長方形断面の短辺を形成して対向する２面には、本体側係合突起１５１，１５１が内外へ揺動可能に形成されており、接続部材１５０の一端側が本体側係合空間ＣＳ１内に位置すると本体側凹部１３２ａ，１３２ａと係合し、接続部材１５０の一端側が蓋側係合空間ＣＳ２内に位置すると蓋側突起ガイド部１４３，１４３に非係合状態で収容されるようになっている。
【００６５】
接続部材１５０の他端側における長方形断面の長辺を形成して対向する２面には、蓋側係合突起１５２，１５２が内外へ揺動可能に形成されており、図１７に示すように、接続部材１５０の他端側が蓋側係合空間ＣＳ２内に位置すると蓋側凹部１４２ａ，１４２ａと係合し、図１８に示すように、接続部材１５０の他端側が本体側係合空間ＣＳ１内に位置すると本体側係合補助部材１３０の内側面に当接し非係合状態で本体側突起ガイド部１３３，１３３に収容されるようになっている。
【００６６】
接続部材１５０の他端面には、接続部材１５０の向きを識別可能な方向識別マーク１５３が形成されている。方向識別マーク１５３は、図１３に示すように、接続部材１５０の他端面に凹設された「ロック」文字であり、接続部材１５０がロック方向を向いて係合空間ＣＳ内に配設されるときには、方向識別マーク１５３、すなわち接続部材１５０の他端側が前方（蓋側係合部１２０の方）を向くようになっている。これにより、係合空間ＣＳ内における接続部材１５０の配設方向（ロック方向およびアンロック方向）の間違いを防止することができ、さらに、接続部材１５０を介してロック状態にある本体側係合部１１０および蓋側係合部１２０を認識することができる。
【００６７】
なお、方向識別マーク１５３（文字の部分）に他の部分と異なる色を着色してもよく、さらに、接続部材１５０の他端面における方向識別マーク１５３（文字の部分）を除く領域に、方向識別マーク１５３（文字の部分）および接続部材１５０の他端面を除く面と異なる色を着色するようにしてもよい。このようにすれば、方向識別マーク１５３の識別力を向上させることができる。
【００６８】
また、方向識別マーク１５３は、「ロック」文字に限らず、文字、記号、絵柄等を用いてもよい。さらに、方向識別マーク１５３は、接続部材１５０の他端面に印刷、塗装等により形成されてもよく、印刷シール等を貼り付けるようにしてもよい。また、方向識別マーク１５３は、接続部材１５０の他端面に限らず、接続部材１５０の一端面や側面等に、方向識別手段として接続部材１５０の向きを識別可能に設けられていればよい。
【００６９】
このように構成される不正開放防止機構１００において、ケース蓋部材７０をケース本体部材６０へ装着した状態で本体側係合部１１０と蓋側係合部１２０とを連結するには、まず、４つの接続部材１５０，１５０，…の一つをロック方向に向け、接続部材１５０の一端側を本体側係合部１１０における本体側係合空間ＣＳ１内に挿入する。このとき、接続部材１５０の本体側係合突起１５１，１５１は本体側係合補助部材１３０の内側部に当接して内方へ揺動し、接続部材１５０の一端が本体側係合空間ＣＳ１の底部に達すると外方へ復元揺動して本体側係合補助部材１３０の本体側凹部１３２ａ，１３２ａと係合する。すなわち、ロック方向を向いた接続部材１５０の一端側が本体側係合補助部材１３０を介して本体側係合部１１０と係合する。
【００７０】
次に、他の三つの接続部材１５０，１５０，１５０をそれぞれアンロック方向に向け、接続部材１５０の他端側を本体側係合部１１０における本体側係合空間ＣＳ１内に挿入する。このとき、接続部材１５０の蓋側係合突起１５２，１５２は本体側係合補助部材１３０の内側面に当接して内方へ揺動し、この状態で本体側係合補助部材１３０の本体側突起ガイド部１３３，１３３に非係合状態で収容される。すなわち、図１８に示すように、アンロック方向を向いた接続部材１５０の他端側が本体側係合補助部材１３０を介して本体側係合部１１０に挿抜可能に収容保持される。なおこのとき、蓋側係合突起１５２，１５２は弾性力により本体側係合補助部材１３０の内側面を押圧しており、接続部材１５０の他端側が本体側係合部１１０から抜けにくくなっている。
【００７１】
続いて、ケース蓋部材７０を揺動させてケース本体部材６０へ装着し、蓋側係合部１２０（蓋側収容部１２１）が本体側係合部１１０（本体側収容部１１１）と対向して重なる状態にする。そうすると、ロック方向を向いた接続部材１５０においては、接続部材１５０の他端側が蓋側係合部１２０における蓋側係合空間ＣＳ２内に挿入された状態となる。このとき、接続部材１５０の蓋側係合突起１５２，１５２は蓋側係合補助部材１４０の内側部に当接して内方へ揺動し、接続部材１５０の他端が蓋側係合空間ＣＳ２の底部に達すると外方へ復元揺動して蓋側係合補助部材１４０の蓋側凹部１４２ａ，１４２ａと係合する。すなわち、ロック方向を向いた接続部材１５０の他端側が蓋側係合部１２０と係合する。
【００７２】
一方、アンロック方向を向いた接続部材１５０においては、接続部材１５０の一端側が蓋側係合部１２０における蓋側係合空間ＣＳ２内に挿入された状態となる。このとき、接続部材１５０の本体側係合突起１５１，１５１は蓋側係合補助部材１４０の内側面に当接して内方へ揺動し、この状態で蓋側係合補助部材１４０の蓋側突起ガイド部１４３，１４３に非係合状態で収容される。すなわち、アンロック方向を向いた接続部材１５０の一端側が蓋側係合部１２０に挿抜可能に収容される。
【００７３】
このようにして、ケース蓋部材７０を揺動させてケース本体部材６０へ装着し、蓋側係合部１２０が本体側係合部１１０と対向して重なる状態にすると、４つの接続部材１５０，１５０，…の一つが本体側係合空間ＣＳ１と蓋側係合空間ＣＳ２とが繋がって形成された係合空間ＣＳ内にロック方向を向いて配設されるとともに、他の三つの接続部材１５０，１５０，１５０が係合空間ＣＳ内にアンロック方向を向いて配設される。
【００７４】
すなわち、ロック方向を向いた接続部材１５０の一端側が本体側係合補助部材１３０を介して本体側係合部１１０と係合するとともに、他端側が蓋側係合補助部材１４０を介して蓋側係合部１２０と係合することで、本体側係合部１１０と蓋側係合部１２０とが接続部材１５０を介して連結され、図３および図１７に示すように、ケース本体部材６０とケース蓋部材７０とが閉止状態で結合保持される。これにより、本体側係合部１１０と蓋側係合部１２０とを容易に連結させることができ、ケース本体部材６０とケース蓋部材７０とを閉止状態で容易に結合保持することができる。
【００７５】
そして、このような不正開放防止機構１００によりケース本体部材６０とケース蓋部材７０とが閉止状態で結合保持されれば、係合空間ＣＳ内にロック方向を向いて収容された接続部材１５０と本体側係合部１１０および蓋側係合部１２０との係合を解除するのは非常に困難であり、主基板ケース５５（主基板アッセンブリ５０）を開く時には連結部１２５を切断して蓋側係合部１２０とケース蓋部材７０とを切り離す必要があることから、主基板ケース５５（主基板アッセンブリ５０）の開放後にその切断痕跡が明確に残り、不正な開封を早期に発見することができる。
【００７６】
また、接続部材１５０の一端側が本体側係合空間ＣＳ１内に位置して本体側係合突起１５１，１５１が本体側凹部１３２ａ，１３２ａと係合するとともに、接続部材１５０の他端側が蓋側係合空間ＣＳ２内に位置して蓋側係合突起１５２，１５２が蓋側凹部１４２ａ，１４２ａと係合するため、本体側係合部１１０と蓋側係合部１２０とをより容易に連結させることができ、ケース本体部材６０とケース蓋部材７０とを閉止状態で容易に結合保持することができる。
【００７７】
さらに、接続部材１５０は直方体状に形成されており、接続部材１５０に合わせて形成された係合空間ＣＳ内で回転することがないため、接続部材１５０がロック方向を向くときには、容易に本体側係合突起１５１，１５１と本体側凹部１３２ａ，１３２ａとを係合させるとともに蓋側係合突起１５２，１５２と蓋側凹部１４２ａ，１４２ａとを係合させることができ、接続部材１５０がアンロック方向を向くときには、容易に蓋側係合突起１５２，１５２を非係合状態で本体側突起ガイド部１３３，１３３に（本体側係合空間ＣＳ１内に）収容させるとともに本体側係合突起１５１，１５１を非係合状態で蓋側突起ガイド部１４３，１４３に（蓋側係合空間ＣＳ２内に）収容させることができる。
【００７８】
また、接続部材１５０は係合空間ＣＳ内にロック方向およびロック方向とは逆のアンロック方向を向いて配設可能となっているため、本体側係合部１１０と蓋側係合部１２０とをロック状態（ケース蓋部材７０とケース本体部材６０とが結合保持された状態）もしくはアンロック状態（ケース蓋部材７０がケース本体部材６０に着脱可能な状態）で選択的に連結させることができる。
【００７９】
次に、以上のようにしてケース本体部材６０とケース蓋部材７０とが閉止状態で結合保持された主基板アセンブリ５０において、その内部に収容された主制御基板５１の保守点検作業を行う場合について、さらに図１９〜図２１を追加参照しながら説明する。ここで、図１９は開放状態の主基板アッセンブリ５０の斜視図、図２０はロック方向を向いた接続部材１５０が本体側係合部１１０に挿入される状態を示す斜視図、そして図２１はアンロック方向を向いた接続部材１５０が本体側係合部１１０から抜き出された状態を示す斜視図である。
【００８０】
保守点検作業を行うときには、例えば、ニッパ等の工具を用いて蓋側係合部１２０とケース蓋部材７０との連結部１２５（例えば、図３に示すように、ケース蓋部材７０の右端下方に位置する連結部１２５）を切断する。これにより、蓋側係合部１２０とケース蓋部材７０とが切り離されるので、図１９に示すように、主基板ケース５５（主基板アッセンブリ５０）を開放することができ、ケース蓋部材７０の内面側に取り付けられた主制御基板５１の保守点検等を行うことができる。他の三つの接続部材１５０，１５０，１５０は係合空間ＣＳ内にアンロック方向を向いて配設され、本体側係合部１１０および蓋側係合部１２０に挿抜可能に収容されているからである。
【００８１】
本体側係合部１１０および蓋側係合部１２０は、ケース本体部材６０およびケース蓋部材７０の右端にそれぞれ四つずつ設けられているが、本体側係合部１１０と蓋側係合部１２０とを連結させてケース本体部材６０とケース蓋部材７０とを閉止状態で結合保持するときには、本体側係合部１１０および蓋側係合部１２０のいずれか一組を接続部材１５０により連結させる。
【００８２】
このため、本体側係合部１１０と連結した蓋側係合部１２０のケース蓋部材７０との連結部１２５が切断されても、他の組はまだ使用可能であり、上記のように保守点検が完了した後は、未使用のいずれか一組の本体側係合部１１０と蓋側係合部１２０とを接続部材１５０により連結させる。このため、本実施形態における主基板アセンブリ５０の場合には、途中において三度の保守点検が可能である。
【００８３】
未使用のいずれか一組の本体側係合部１１０と蓋側係合部１２０とを接続部材１５０により連結させるには、図２１に示すように、未使用のいずれか一つの接続部材１５０を本体側係合部１１０から抜き出した後、図２０に示すように、この接続部材１５０をロック方向に反転させ、ロック方向を向いた接続部材１５０の一端側を本体側係合部１１０に挿入して係合させた状態で、ケース蓋部材７０を再びケース本体部材６０へ装着すればよい。
【００８４】
以上に説明した本実施形態による主基板アッセンブリ５０によれば、不正開放防止機構１００によりケース本体部材６０とケース蓋部材７０とが閉止状態で結合保持されるため、係合空間ＣＳ内にロック方向を向いて収容された接続部材１５０と本体側係合部１１０および蓋側係合部１２０との係合を解除するのは非常に困難であり、主基板ケース５５（主基板アッセンブリ５０）を開く時には連結部１２５を切断して蓋側係合部１２０とケース蓋部材７０とを切り離す必要があることから、主基板ケース５５（主基板アッセンブリ５０）の開放後にその切断痕跡が明確に残り、不正な開封を早期に発見することができる。
【００８５】
また、接続部材１５０が係合空間ＣＳ内にロック方向およびロック方向とは逆のアンロック方向を向いて配設可能となっているため、本体側係合部１１０と蓋側係合部１２０とをロック状態（ケース蓋部材７０とケース本体部材６０とが結合保持された状態）もしくはアンロック状態（ケース蓋部材７０がケース本体部材６０に着脱可能な状態）で選択的に連結させることができる。
【００８６】
なお、保守点検の際には連結部１２５を切断して主基板ケース５５を開放し、この状態で保守点検が行われるが、ケース本体部材６０およびケース蓋部材７０には複数組の本体側係合部１１０および蓋側係合部１２０が設けられているため、保守点検の完了後、まだ連結部１２５が切断されていない組の本体側係合部１１０および蓋側係合部１２０に、アンロック方向で挿入されていた接続部材１５０を抜き出し反転させて再びロック方向で挿入し、本体側係合部１１０と蓋側係合部１２０とを連結させることで、ケース本体部材６０とケース蓋部材７０とを再度閉止状態で結合保持することができる。
【００８７】
また、ロック方向を向いた接続部材１５０の一端側が本体側係合補助部材１３０を介して本体側係合部１１０と係合するとともに、他端側が蓋側係合補助部材１４０を介して蓋側係合部１２０と係合するため、本体側係合部１１０と蓋側係合部１２０とを容易に連結させることができ、ケース本体部材６０とケース蓋部材７０とを閉止状態で容易に結合保持することができる。
【００８８】
さらに、接続部材１５０の一端側が本体側係合空間ＣＳ１内に位置して本体側係合突起１５１，１５１が本体側凹部１３２ａ，１３２ａと係合するとともに、接続部材１５０の他端側が蓋側係合空間ＣＳ２内に位置して蓋側係合突起１５２，１５２が蓋側凹部１４２ａ，１４２ａと係合するため、本体側係合部１１０と蓋側係合部１２０とをより容易に連結させることができ、ケース本体部材６０とケース蓋部材７０とを閉止状態で容易に結合保持することができる。
【００８９】
また、接続部材１５０は直方体状に形成されており、接続部材１５０に合わせて形成された係合空間ＣＳ内で回転することがないため、接続部材１５０がロック方向を向くときには、容易に本体側係合突起１５１，１５１と本体側凹部１３２ａ，１３２ａとを係合させるとともに蓋側係合突起１５２，１５２と蓋側凹部１４２ａ，１４２ａとを係合させることができ、接続部材１５０がアンロック方向を向くときには、容易に蓋側係合突起１５２，１５２を非係合状態で本体側突起ガイド部１３３，１３３に（本体側係合空間ＣＳ１内に）収容させるとともに本体側係合突起１５１，１５１を非係合状態で蓋側突起ガイド部１４３，１４３に（蓋側係合空間ＣＳ２内に）収容させることができる。
【００９０】
さらに、接続部材１５０の他端面に形成された方向識別マーク１５３により、係合空間ＣＳ内における接続部材１５０の配設方向（ロック方向およびアンロック方向）の間違いを防止することができ、さらに、接続部材１５０を介してロック状態にある本体側係合部１１０および蓋側係合部１２０を認識することができる。
【００９１】
また、本体側係合部１１０が別体の本体側収容部１１１と本体側係合補助部材１３０とから構成され、蓋側係合部１２０が別体の蓋側収容部１２１と蓋側係合補助部材１４０とから構成されるため、本体側係合部１１０および蓋側係合部１２０（すなわち、ケース本体部材６０およびケース蓋部材７０）の複製がより難しくなり、不正行為の抑止が期待できる。
【００９２】
さらに、本体側収容部１１１および蓋側収容部１２１の材質が透明の樹脂材料であるのに対し、本体側係合補助部材１３０および蓋側係合補助部材１４０の材質は本体側収容部１１１および蓋側収容部１２１と異なる有色半透明の樹脂材料であるため、本体側収容部１１１（および蓋側収容部１２１）に正規の本体側係合補助部材１３０（および蓋側係合補助部材１４０）が固設されているか否か、すなわちケース本体部材６０（およびケース蓋部材７０）が複製品であるか否かを容易に判別することができる。
【００９３】
また、ケース本体部材６０の内側ガードリブ６４およびケース蓋部材７０の外側ガードリブ７８により、ケース蓋部材７０の縁部（外側ガードリブ７８）とケース本体部材６０の縁部（縁部当接部６５）との間に若干の隙間を生じさせて、この隙間から針金やセル板等の道具（図示せず）をケース内部に挿入しようとしても、これらの道具をケース蓋部材７０の外側ガードリブ７８とケース本体部材６０の内側ガードリブ６４との間に形成されたラビリンス形状の僅かな隙間に通過させなければならないため、針金やセル板等の道具がケース内部に不正に挿入されるのを防止することができる。
【００９４】
さらに、ケース蓋部材７０に形成された基板当接部７９が主制御基板５１の縁部と当接して、主制御基板５１におけるケース蓋部材７０と対向する面がケース蓋部材７０に覆われる状態で主制御基板５１がケース蓋部材７０の内面側に取り付けられているため、ケース本体部材６０とケース蓋部材７０との隙間から針金やセル板等の道具がケース内部に挿入されても、これらの道具は主制御基板５１におけるケース蓋部材７０と対向する面に到達できないことから、主制御基板５１に対する不正行為をより確実に防止することができる。
【００９５】
また、内部カバー８０の周囲リブ８３が主制御基板５１の縁部と当接し、主制御基板５１におけるケース本体部材６０と対向する面が内部カバー８０に覆われる状態となるため、ケース本体部材６０とケース蓋部材７０との隙間から針金やセル板などの道具がケース内部に挿入されても、これらの道具は主制御基板５１における（ケース蓋部材７０と対向する面に加えて）ケース本体部材６０と対向する面に到達できないことから、主制御基板５１に対する不正行為をより確実に防止することができる。
【００９６】
さらに、主基板ケース５５（ケース本体部材６０およびケース蓋部材７０）の材料としてＡＢＳ樹脂を使用することにより、連結部１２５に対する切断操作を行うと、ＡＢＳ樹脂の成分であるブタジエンがゴム性を有して伸び、部材が割れずに白化しやすいため、その切断痕跡が明確に残りやすいという効果が得られる。また、主基板ケース５５を無理にこじ開けようとしても、同様に部材が白化して（こじ開けた）痕跡が明確に残りやすいという効果が得られる。
【００９７】
なお、上述の実施形態において、ケース本体部材６０の縁部内側に内側ガードリブ６４が形成されるとともに、ケース蓋部材７０の縁部外側に外側ガードリブ７８が形成されて、外側ガードリブ７８が内側ガードリブ６４の外側に位置してケース本体部材６０の縁部当接部６５に当接するようになっているが、これに限られるものではなく、図２２に示すように、ケース本体部材６０の縁部外側に外側ガードリブ２６８が形成されるとともに、ケース蓋部材７０の縁部内側に内側ガードリブ２７４が形成されて、外側ガードリブ２６８が内側ガードリブ２７４の外側に位置してケース蓋部材７０の縁部当接部２７５に当接するようにしてもよい。
【００９８】
また、上述の実施形態において、主基板ケース５５および不正開放防止機構１００を備えた主基板アッセンブリ５０がパチンコ機ＰＭに設けられているが、これに限られるものではなく、例えば、スロットマシンや雀球遊技機等の遊技機に設けられてもよい。
【００９９】
さらに、上述の実施形態において、接続部材１５０における長方形断面の短辺を形成して対向する２面に本体側係合突起１５１，１５１が形成されるとともに、接続部材１５０における長方形断面の長辺を形成して対向する２面に蓋側係合突起１５２，１５２が形成されているが、これに限られるものではなく、接続部材１５０における長方形断面の長辺を形成して対向する２面に本体側係合突起１５１，１５１が形成されるとともに、接続部材１５０における長方形断面の短辺を形成して対向する２面に蓋側係合突起１５２，１５２が形成されてもよい。なおこのとき、本体側凹部および蓋側凹部、そして本体側突起ガイド部および蓋側突起ガイド部の形成位置も逆になる。
【０１００】
また、上述の実施形態において、接続部材１５０が断面長方形の直方体状に成形されているが、これに限られるものではなく、例えば、断面正方形の直方体や立方体状に形成されてもよく、さらには円柱状に成形されてもよい。
【０１０１】
さらに、上述の実施形態において、ケース本体部材６０およびケース蓋部材７０に本体側係合部１１０および蓋側係合部１２０（接続部材１５０等も含む）が四組設けられているが、これに限られるものではなく、一組だけ設けられてもよく、さらに四組以外の複数組設けられてもよい。また、上述の実施形態において、本体側係合部１１０と蓋側係合部１２０とが一度に一組だけ連結されているが、これに限られるものではなく、一度に複数組連結させてもよい。
【０１０２】
【発明の効果】
以上説明したように、本発明による基板ケースの不正開放防止機構によれば、接続部材を本体側係合補助部材と蓋側係合補助部材とに係合させることにより、本体側係合部と蓋側係合部とが連結されるため、本体側係合部と蓋側係合部とを容易に連結させることができ、ケース本体部材とケース蓋部材とを閉止状態で容易に結合保持することができる。
【０１０３】
また、本体側係合部および蓋側係合部の少なくともいずれかにおけるケース本体部材もしくはケース蓋部材との連結部が切断可能に構成されているため、この連結部を切断すればケース本体部材からケース蓋部材を外すことができるが、このように連結部を切断したときにはその破壊痕跡が残るためこれを容易に発見でき、不正行為を効果的に抑止できる。さらに、本体側係合部が別体の本体側収容部と本体側係合補助部材とから構成され、蓋側係合部が別体の蓋側収容部と蓋側係合補助部材とから構成されるため、本体側係合部および蓋側係合部（すなわち、ケース本体部材およびケース蓋部材）の複製がより難しくなり、不正行為の抑止が期待できる。
【図面の簡単な説明】
【図１】本発明に係る基板ケースを備えた遊技機の一例として示すパチンコ機の正面図である。
【図２】上記パチンコ機の裏面側を示す背面図である。
【図３】主基板アッセンブリの斜視図である。
【図４】主基板アッセンブリの側断面である。
【図５】主基板アッセンブリの分解斜視図である。
【図６】ケース蓋部材の背面図である。
【図７】（ａ）は係止アームが係止突起に係止した状態を示す拡大図であり、（ｂ）は係止アームが係止突起に係止した状態を示す拡大側断面図である。
【図８】（ａ）は係止アームが係止突起に係止する前の状態を示す拡大図であり、（ｂ）は係止アームが係止突起に係止する前の状態を示す拡大側断面図である。
【図９】不正開放防止機構に構成される本体側係合部の分解斜視図である。
【図１０】不正開放防止機構に構成される蓋側係合部の分解斜視図である。
【図１１】本体側係合部の正面図である。
【図１２】蓋側係合部の背面図である。
【図１３】不正開放防止機構に構成される接続部材の斜視図である。
【図１４】図１３中の接続部材を反対側から見た斜視図である。
【図１５】（ａ）は接続部材の長方形断面における長辺方向から見た側面図であり、（ｂ）は図１５（ａ）中の矢印XV−XVに沿った平断面図である。
【図１６】（ａ）は接続部材の長方形断面における短辺方向から見た側面図であり、（ｂ）は図１６（ａ）中の矢印XVI−XVIに沿った平断面図である。
【図１７】閉止状態の主基板アッセンブリの側断面図である。
【図１８】開放状態の主基板アッセンブリ５０の側断面図である。
【図１９】開放状態の主基板アッセンブリの斜視図である。
【図２０】ロック方向を向いた接続部材が本体側係合部に挿入される状態を示す斜視図である。
【図２１】アンロック方向を向いた接続部材が本体側係合部から抜き出された状態を示す斜視図である。
【図２２】外側ガードリブおよび内側ガードリブの変形例を示す拡大側断面図である。
【符号の説明】
Ｌ レバー
ＰＡ 遊技領域
ＰＭ パチンコ機
ＣＳ 係合空間
ＣＳ１ 本体側係合空間
ＣＳ２ 蓋側係合空間
ＨＳ１ 本体側収容空間
ＨＳ２ 蓋側収容空間
１ 外枠
２ 前枠
３ａ，３ｂ ヒンジ部材
４ 施錠装置
５ ガラス扉
６ 球皿
７ａ，７ｂ，７ｃ ヒンジ機構
８ 操作ハンドル
１０ 遊技盤
３０ 裏セット盤
３１ 球貯留タンク
３２ タンクレール
３３ 整列待機通路
３４ 賞球カセット
３５ 賞球排出通路
４０ 電源基板アッセンブリ
５０ 主基板アッセンブリ
５１ 主制御基板（５１ａ 基板取付孔，５１ｂ ピン孔）
５２ ＣＰＵ
５３ 左側接続コネクタ
５４ 右側接続コネクタ
５５ 主基板ケース
６０ ケース本体部材
６１ 補強リブ
６２ ヒンジ軸
６３ 係止アーム
６４ 内側ガードリブ
６５ 縁部当接部
７０ ケース蓋部材
７１ 基板取付部（７１ａ ネジ孔，７１ｂ ボス部，７１ｃ 基板取付面）
７２ 左コネクタ開口部
７３ 右コネクタ開口部
７４ ヒンジアーム
７５ 係止突起
７６ 係止補助突起
７７ 指掛け部
７８ 外側ガードリブ
７９ 基板当接部
８０ 内部カバー
８１ 位置決めピン
８２ 内部カバー取付部（８２ａ ネジ通過孔）
８３ 周囲リブ
８５ 蓋側ピン孔
８９ 基板取付ネジ
１００ 不正開放防止機構
１１０ 本体側係合部
１１１ 本体側収容部
１１２ 本体側取付ガイド溝
１１３ 本体側連結ガイドリブ
１１４ 本体側リブ係合部
１２０ 蓋側係合部
１２１ 蓋側収容部
１２２ 蓋側取付ガイド溝
１２３ 蓋側連結ガイドリブ
１２４ 蓋側リブ係合部
１２５ 連結部
１３０ 本体側係合補助部材
１３１ 本体側取付ガイド部
１３２ 本体側穴部（１３２ａ 本体側凹部）
１３３ 本体側突起ガイド部
１４０ 蓋側係合補助部材
１４１ 蓋側取付ガイド部
１４２ 蓋側穴部（１４２ａ 蓋側凹部）
１４３ 蓋側突起ガイド部
１５０ 接続部材
１５１ 本体側係合突起
１５２ 蓋側係合突起
１５３ 方向識別マーク
２６８ 外側ガードリブ（別実施形態）
２７４ 内側ガードリブ（別実施形態）
２７５ 縁部当接部（別実施形態）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a board case that accommodates a control board that controls the operation of a gaming machine in a gaming machine such as a pachinko machine or a slot machine, and more specifically, can illegally open a board case that contains a control board or the like. The present invention relates to a mechanism for preventing unauthorized opening of a substrate case to prevent unauthorized actions against a control board or the like.
[0002]
[Prior art]
In gaming machines such as pachinko machines and slot machines, a control board for controlling the operation of the gaming machine is provided. For example, in a pachinko gaming machine, a game board and a back mechanism board are mounted on a storage frame on the back side of a front frame that is assembled to be openable and closable with respect to an outer frame, and a control board is attached to the back mechanism board. Similarly, in the slot machine, a control board is attached to the back surface of the opening / closing cover.
[0003]
These control boards are boards that control the operation of pachinko machines or slot machines, such as prize ball or medal payout control, opening / closing control of electric accessories, reel rotation control, symbol combination occurrence probability control, etc. A ROM in which the control software of the machine is recorded is mounted and serves as a central control device that controls the operation of the gaming machine. For this reason, the control board is housed in the board case so that it is not subject to unauthorized modification such as replacement with a counterfeit ROM, and this board case is illegally opened (or illegally left with traces when the case is opened). (Detachment) prevention means is provided.
[0004]
Examples of such unauthorized opening prevention means include means for fastening a plurality of cleavable screw fastening pairs with special screws. This is a board case composed of a case main body member and a case lid member that can be freely opened and closed on the case main body member, and a screw threaded portion corresponding to each side edge of the case main body member and the case lid member, and A plurality of screw fastening pairs consisting of screw penetration parts are formed, and of these, at least one screw threaded part and screw penetration part can be operated only in the tightening direction. The engagement portion is formed only in the direction, and the engagement portion in the loosening direction is removed in a spiral shape, and is tightened with a screw (hereinafter referred to as “one-way screw” in this specification). In this configuration, a severable cutting part is formed between the case lid member and the screw penetration part. For example, Japanese Patent Laid-Open No. 10-328385 and Japanese Patent Laid-Open No. 11-226220 disclose such a configuration.
[0005]
In the above unauthorized opening prevention means, when the administrator opens the board case for maintenance inspection of the control board, the cutting part of the fastening pair fastened with the one-way screw is cut with a tool such as a nipper, and the screw penetration part Is disconnected from the case lid member to release the connection between the case lid member and the case main body member and open the case lid member. In this way, the case lid member is opened and maintenance inspection is performed, but after the maintenance inspection is completed, the other fastening pair that has not yet been fastened is fastened using a one-way screw and the case lid member is attached to the case body member・ Close. In addition, a board management sticker that displays the board management number and the opening history is affixed to the board case, and the administrator who opened the label manages the opening date and the name of the person who opened it on this board management sticker. It has become.
[0006]
According to the unauthorized opening prevention means as described above, the one-way screw generally cannot be rotated in the loosening direction, and it is necessary to cut the cutting part when opening the board case. Traces remain clear and unauthorized opening can be detected early.
[0007]
[Patent Document 1]
JP-A-10-328385
[Patent Document 2]
Japanese Patent Laid-Open No. 11-226220
[0008]
[Problems to be solved by the invention]
However, since the above-described unauthorized opening prevention means uses a one-way screw as the fastening means, a tool such as a screwdriver must be used when fastening the screw fastening pair, and the fastening work is troublesome. It was. In addition, if the control board is transferred to the duplicated board case after the board case has been illegally opened, there will be no cutting trace when the board case is opened, and unauthorized opening may not be detected early. It was.
[0009]
The present invention has been made in view of such problems, and an object of the present invention is to provide a mechanism for preventing unauthorized opening of a substrate case that is difficult to be replicated with a simpler configuration.
[0010]
[Means for Solving the Problems]
  In order to achieve such an object, the unauthorized opening prevention mechanism for a substrate case according to the present invention includes a case body member and a case body member.Can be opened and closedA case lid member to be mounted, and the case lid member is attached to the case body member.In the closed stateIn a board case that houses a control board that controls an electronic component mounted on a gaming machine inside a case formed by mounting, a main body side engaging portion that is connected to the case main body member, and a case lid member A lid-side engaging portion provided in connection with the body-side engaging portion;Lid side engaging partA connection member that can be connected to the case body, and the case lid member is connected to the case body member by connecting the main body side engaging portion and the lid side engaging portion using the connecting member.In the closed stateThe case cover member is held from the case main body member by cutting the connecting portion with the case main body member or the case cover member in at least one of the main body side engaging portion and the lid side engaging portion.OpenThis is a mechanism for preventing unauthorized opening of a substrate case configured so as to be able to perform the above operation.
[0011]
  And this unauthorized opening prevention mechanism, the body side engaging portion is provided integrally with the case body member,On the side connected to the lid side engaging partThe main body side accommodating portion in which the main body side accommodating space having one end opened is formed, and the main body side engagement assisting member fixed in the main body side accommodating space and engageable with the connecting member. The joint is provided integrally with the case lid member,On the side connected to the main body side engaging partThe connection member is composed of a cover-side storage portion in which a cover-side storage space having one end opened is formed, and a cover-side engagement assisting member fixed in the cover-side storage space and engageable with the connection member. By engaging the main body side engagement assisting member and the lid side engagement assisting member, the main body side engaging portion and the lid side engaging portion are connected.
[0012]
According to the improper opening prevention mechanism for the substrate case having such a configuration, the connection member is engaged with the main body side engagement auxiliary member and the lid side engagement auxiliary member, whereby the main body side engagement portion and the lid side engagement are engaged. Therefore, the main body side engaging portion and the lid side engaging portion can be easily connected, and the case main body member and the case lid member can be easily coupled and held in the closed state.
[0013]
  Moreover, since the connection part with the case main body member or the case cover member in at least one of the main body side engaging part and the lid side engaging part is configured to be cut, if the connecting part is cut, the case main body member The case lid member can be removed, but when the connecting portion is cut in this way, the destruction trace remains, so that it can be easily found and illegal acts can be effectively suppressed. Furthermore, the main body side engaging portion is composed of a separate main body side accommodating portion and a main body side engaging auxiliary member, and the lid side engaging portion is composed of a separate lid side accommodating portion and a lid side engaging auxiliary member. Therefore, it becomes more difficult to duplicate the main body side engaging portion and the lid side engaging portion (that is, the case main body member and the case lid member), and it is expected that fraud is suppressed.
  In addition,The main body side engagement assisting member is configured to have a main body side engaging space that can accommodate and engage one end side of the connecting member, and the main body side engaging space is opened to the side connected to the lid side engaging portion. In this way, the main body side engagement assisting member is accommodated in the main body side accommodating space and welded or bonded to be fixed to the main body side engaging portion, and the lid side engagement assisting member is connected to the other end side of the connection member. The lid-side engagement assisting member is configured to have a lid-side engagement space that can be accommodated and engaged, and the lid-side engagement space opens to the side connected to the body-side engagement portion. It is preferable to be housed in the housing space and welded or bonded to be fixed to the lid side engaging portion. Furthermore, it is preferable that the main body side engagement portion and the lid side engagement portion are made of a transparent resin material, and the main body side engagement auxiliary member and the lid side engagement auxiliary member are made of a colored resin material. Thereby, it is possible to more reliably prevent an illegal act such as duplication of the main body side engaging portion and the lid side engaging portion (that is, the case main body member and the case lid member).
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show a pachinko machine PM as a representative example of a gaming machine provided with a mechanism for preventing unauthorized opening of a substrate case according to the present invention. First, an overall configuration of the pachinko machine PM will be described with reference to these drawings. Summarize. Here, FIG. 1 is a front view of the pachinko machine PM, and FIG. 2 is a rear view of the pachinko machine PM.
[0015]
In the pachinko machine PM, an opening front frame 2 configured in a rectangular frame size corresponding to the front frame 2 is formed in front of each other on the front surface of the outer frame 1 which is configured in an outer rectangular frame size and forms a vertically fixed holding frame. The hinge members 3a and 3b disposed on the left and upper sides are attached so as to be able to be opened and closed laterally and attached and detached, and are always in a closed state engaged with the outer frame 1 using the locking device 4 provided on the right side of the front. Retained.
[0016]
Hinge mechanisms 7a and 7b each having a square glass door 5 and a ball tray 6 provided on the front left side of the front frame 2 as game development members for developing pachinko games in the front frame 2 , 7c can be opened / closed and attached / detached sideways, and an operation handle 8 for performing a game ball launching operation is provided at the lower right side of the ball tray 6. A rectangular frame-shaped storage frame (not shown) that protrudes rearward from the center to the top of the front frame 2 is formed integrally with the front frame 2, and the game board is configured with a predetermined gauge setting in the storage frame. 10 is detachably set and held, and the game area PA on the front of the game board faces the glass door 5 that is normally held closed.
[0017]
On the back side of the front frame 2, there is a plurality of back set boards 30 provided on the back side of the front frame 2, which have a window that communicates with the front and rear in the center and is formed in a rectangular frame shape slightly smaller than the front frame 2. The levers L, L... Are detachably set and held. Each part of the back set board 30 is equipped with a prize ball device such as a ball storage tank 31 for storing game balls, a tank rail 32, an alignment standby passage 33, a prize ball cassette 34, a prize ball discharge passage 35, and the like. Various control board assemblies such as a power supply board assembly 40 and a main board assembly 50 are attached to the main board assembly.
[0018]
An auxiliary mechanism portion called a game assisting board (not shown) is formed in the lower region of the front frame 2 whose front side is covered with the ball tray 6, and a ball hitting device ( A storage cassette (not shown) for temporarily storing game balls that are connected to the prize ball discharge passage 35 on the back set board 30 side and cannot be discharged to the ball tray 6 are provided.
[0019]
The pachinko machine PM is used in a game in which the front frame 2, the glass door 5, and the ball tray 6 are all closed and locked, and a game ball is stored in the ball tray 6 and the operation handle 8 is rotated. A game is started. When the operation handle 8 is turned, the game balls stored in the ball tray 6 are shot one by one into the game area PA of the game board 10 by the hitting ball launcher, and the pachinko game is developed thereafter.
[0020]
In the pachinko machine PM schematically configured as described above, the main substrate assembly 50 is provided with an unauthorized opening prevention mechanism. The main substrate assembly 50 will be described below with reference to FIGS. 3 is a perspective view of the main board assembly 50, FIG. 4 is a side sectional view of the main board assembly 50, FIG. 5 is an exploded perspective view of the main board assembly 50, and FIG. 7A is a rear view of the lid member 70, FIG. 7A is an enlarged view showing a state in which the locking arm 63 is locked to the locking protrusion 75, and FIG. FIG. 8A is an enlarged side sectional view showing a state before the locking arm 63 is locked to the locking projection 75, and FIG. FIG. 6 is an enlarged side sectional view showing a state before being locked to a protrusion 75.
[0021]
As shown in FIGS. 3 to 5, the main board assembly 50 mainly includes a main control board 51 that comprehensively controls the operation of the pachinko machine PM and a main board case 55 that accommodates the main control board 51 therein. Composed. Further, the main board case 55 includes a case main body member 60 fixed to the back set board 30 of the pachinko machine PM, a case lid member 70 attached to the case main body member 60 so as to be openable and closable, and a back surface side of the main control board 51. The case cover member 70 is configured to be attachable to the case body member 60 in a state where the main control board 51 and the inner cover 80 are attached to the inner surface side of the case cover member 70.
[0022]
As shown in FIG. 5, the main control board 51 includes a CPU 52 arranged at the center of the main control board 51, left connection connectors 53, 53,... Arranged on the left side of the main control board 51. It has electronic components such as right connection connectors 54, 54,... Arranged on the right side of the substrate 51. In the four corners of the main control board 51, board attachment holes 51a, 51a,... Are formed so as to be fitted to boss parts 71b of the board attachment part 71 formed in the case lid member 70. Pin holes 51 b, 51 b, 51 b are formed at three positions near the edge of the main control board 51, and are fitted with positioning pins 81, 81, 81 of the inner cover 80.
[0023]
The case body member 60 has a rectangular box shape having an opening on the front surface side, and is integrally formed by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). Reinforcing ribs 61 are formed vertically and horizontally on the bottom of the case main body member 60 to improve the strength of the case main body member 60 and to receive the inner cover 80 accommodated in the case. Yes.
[0024]
Hinge shafts 62 and 62 are formed at the left end portion of the case main body member 60 so as to be hingedly engaged with the hinge arms 74 and 74 of the case lid member 70, respectively. Locking arms 63, 63 projecting forward are formed on the outer surfaces of the upper and lower side walls of the case body member 60, and as shown in FIGS. 7 and 8, the locking protrusions 75, 75 of the case lid member 70 are respectively provided. It is designed to be locked.
[0025]
An inner guard rib 64 protrudes from the inner side of the edge of the case body member 60, and is positioned inside the outer guard rib 78 of the case lid member 70 when the case lid member 70 is attached to the case body member 60. It is supposed to be. An edge contact portion 65 is formed on the outer side of the edge of the case body member 60 so as to be connected to the inner guard rib 64, and the outer guard rib 78 is edged when the case lid member 70 is attached to the case body member 60. It comes in contact with the part contact part 65.
[0026]
The case lid member 70 has a rectangular box shape covering the opening of the case body member 60, and is integrally formed by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). The As shown in FIGS. 6 and 18, boss-shaped substrate mounting portions 71, 71,... Are formed at the four corners of the back surface (inner surface side) of the case lid member 70 with screw holes 71a, 71a,. The main control board 51 and the inner cover 80 are fixed to the inner surface of the case cover member 70 by being fixed by board mounting screws 89.
[0027]
A boss 71b having a thickness equivalent to that of the main control board 51 and having a diameter slightly smaller than the board attachment hole 51a of the main control board 51 is provided at the tip of the board attachment part 71. , The front surface of the main control board 51 protrudes from the board mounting surface 71c (see FIG. 18) with which the main control board 51 abuts, and is configured to be able to fit into the board mounting hole 51a.
[0028]
A left connector opening 72 is formed on the left side of the case lid member 70. As shown in FIGS. 3 and 17, the main control board 51 is mounted with the case lid member 70 mounted on the case body member 60. The left connection connectors 53, 53,... Are exposed to the outside. .. Are formed on the right side of the case lid member 70. With the case lid member 70 attached to the case body member 60, the right connection connectors 54, 54 of the main control board 51 are formed. 54,... Are exposed to the outside. Note that the peripheral portions (rib portions) of the left and right connector openings 72 and 73 are preferably in contact with the front side of the main control board 51. Thereby, it can prevent that tools, such as a wire and a cell board, are inserted in the case from the left and right connector openings 72 and 73.
[0029]
As shown in FIG. 6, hinge arms 74 and 74 are formed at the left end portion of the case lid member 70, and are hingedly engaged with the hinge shafts 62 and 62 of the case main body member 60, respectively. Then, the hinge shafts 62 and 62 of the case main body member 60 and the hinge arms 74 and 74 of the case cover member 70 are hinge-engaged, so that the case cover member 70 is centered on the hinge shaft 62 with respect to the case main body member 60. It is attached so that it can swing open and close.
[0030]
On the outer surfaces of the upper and lower side walls of the case lid member 70, locking projections 75 and 75 that can be locked with the locking arms 63 and 63 of the case body member 60 are formed. Then, as shown in FIG. 7A, when the case lid member 70 is overlaid (swinged) on the case main body member 60 to be in the closed state, the locking arms 63 and 63 are locked to the locking protrusions 75 and 75, respectively. The case lid member 70 is mounted and held in a closed state with respect to the case main body member 60.
[0031]
A locking auxiliary protrusion 76 is formed in front of the locking protrusion 75 (upper in FIGS. 7 and 8), and the locking arm 63 is locked to the locking protrusion 75 as shown in FIG. In this state, the locking auxiliary protrusion 76 is adjacent to the tip of the locking arm 63 (on the side opposite to the locking protrusion 75). Accordingly, it becomes difficult to hook a finger or a tool on the tip of the locking arm 63, so that the locking state of the locking arm 63 with respect to the locking projection 75 can be prevented from being easily released.
[0032]
The auxiliary locking protrusion 76 may be formed so as to be adjacent to the distal end and both side portions of the engaging arm 63 in a state where the engaging arm 63 is engaged with the engaging protrusion 75. This makes it difficult to hook a finger or a tool on both sides of the locking arm 63 in addition to the tip of the locking arm 63, so that the locking state of the locking arm 63 with respect to the locking projection 75 is easily released. It can prevent more reliably.
[0033]
Finger hooks 77 and 77 are formed on the right side (the left side in FIG. 6) of the locking projection 75, and the operator can perform this operation while the locking arm 63 is not locked to the locking projection 75. The case lid member 70 can be easily opened and closed with respect to the case main body member 60 by hooking the finger rests 77 and 77 with fingers.
[0034]
Outer guard ribs 78 project from the outer edge of the case lid member 70, and when the case lid member 70 is attached to the case body member 60 as shown in FIG. The member 60 is positioned outside the inner guard rib 64 and is in contact with the edge contact portion 65 of the case main body member 60.
[0035]
As a result, a slight gap is generated between the edge of the case lid member 70 (outer guard rib 78) and the edge of the case body member 60 (edge contact portion 65). Even if a tool such as a tool (not shown) is to be inserted into the case, a slight labyrinth-shaped tool formed between the outer guard rib 78 of the case lid member 70 and the inner guard rib 64 of the case body member 60 is used. Since it must pass through the gap, it is possible to prevent tools such as wires and cell plates from being illegally inserted into the case.
[0036]
A substrate abutting portion 79 is formed inside the edge portion of the case lid member 70. When the main control substrate 51 is attached to the inner surface side of the case lid member 70 as shown in FIG. The surface of the main control board 51 that is in contact with the edge of the board 51 and faces the case lid member 70 (that is, the front side of the main control board 51) is covered with the case lid member 70.
[0037]
As a result, the substrate abutting portion 79 abuts against the edge of the main control substrate 51, and the main control substrate 51 is placed in the case in a state where the surface of the main control substrate 51 facing the case lid member 70 is covered by the case lid member 70. Since it is attached to the inner surface side of the lid member 70, even if tools such as a wire or a cell plate are inserted into the case from the gap between the case main body member 60 and the case lid member 70, these tools remain in the main control board 51. Since the surface facing the case lid member 70 cannot be reached, illegal acts on the main control board 51 can be prevented more reliably.
[0038]
The inner cover 80 has a rectangular plate shape matching the shape of the main control board 51, and is integrally formed using a transparent resin material such as ABS resin or polycarbonate (PC). Positioning pins 81, 81, 81 are formed at three positions near the edge of the inner cover 80, and are fitted into the pin holes 51 b, 51 b, 51 b of the main control board 51, respectively. It just overlaps the back side of the substrate 51. Further, the positioning pin 81 is fitted into a lid-side pin hole 85 (see FIG. 6) formed in the case lid member 70 in a state of being fitted to the pin hole 51b of the main control board 51. .
[0039]
.. Are formed at the four corners of the inner cover 80 with screw passage holes 82a, 82a,... 71,... Are fixed with screws. Then, with the main control board 51 oriented in a predetermined direction, the board mounting hole 51a of the main control board 51 is fitted to the boss 71b of the board mounting section 71, and the positioning pins 81 of the inner cover 80 are further controlled. The board mounting screws 89 are fitted in the pin holes 51 b of the board 51 and fitted into the lid side pin holes 85 of the case lid member 70 and the inner cover 80 is placed on the back side of the main control board 51. Is passed through the screw passage hole 82a of the inner cover 80 and fixed to the screw hole 71a of the board attachment portion 71, whereby the main control board 51 and the inner cover 80 are attached to the inner surface side of the case lid member 70.
[0040]
A peripheral rib 83 is formed on the edge of the inner cover 80 so as to be in contact with the edge of the main control board 51. With the peripheral rib 83 in contact with the edge of the main control board 51, the inner cover 80 is configured to cover the surface of the main control board 51 that faces the case main body member 60 (that is, the back side of the main control board 51).
[0041]
As a result, the peripheral rib 83 of the inner cover 80 comes into contact with the edge of the main control board 51, and the surface of the main control board 51 facing the case main body member 60 is covered with the inner cover 80. Even if a tool such as a wire or a cell plate is inserted into the case through the gap between the case 60 and the case lid member 70, these tools are not included in the main body of the main control board 51 (in addition to the surface facing the case lid member 70). Since the surface facing the member 60 cannot be reached, illegal acts on the main control board 51 can be prevented more reliably.
[0042]
Thus, when the case lid member 70 is attached to the case body member 60 in a closed state that covers the opening of the case body member 60, the locking arm 63 is only locked to the locking projection 75. The case lid member 70 can be easily opened with respect to the case body member 60. Therefore, in order to prevent the case lid member 70 mounted in the closed state from being opened and to prevent unauthorized operation, the substrate assembly 50 is provided with an unauthorized opening prevention mechanism. Therefore, the unauthorized opening prevention mechanism 100 provided in the substrate assembly 50 will be described in detail below with additional reference to FIGS.
[0043]
Here, FIG. 9 is an exploded perspective view of the main body side engaging portion 110 configured in the unauthorized opening prevention mechanism 100, and FIG. 10 is an exploded perspective view of the lid side engaging portion 120 configured in the unauthorized opening prevention mechanism 100. 11 is a front view of the main body side engaging portion 110, FIG. 12 is a rear view of the lid side engaging portion 120, FIG. 13 is a perspective view of the connecting member 150 configured in the unauthorized opening prevention mechanism 100, and FIG. It is the perspective view which looked at the connection member 150 of this from the other side.
[0044]
15A is a side view of the connecting member 150 viewed from the long side in the rectangular cross section, FIG. 15B is a plan cross-sectional view taken along arrows XV-XV in FIG. (A) is a side view seen from the short side direction in the rectangular cross section of the connecting member 150, FIG. 16 (b) is a plan sectional view along the arrow XVI-XVI in FIG. 16 (a), and FIG. FIG. 18 is a side sectional view of the main substrate assembly 50, and FIG. 18 is a side sectional view of the main substrate assembly 50 in an open state.
[0045]
The unauthorized opening prevention mechanism 100 includes four main body side engaging portions 110, 110,... Provided connected to the case main body member 60, and four cover side engaging portions provided connected to the case cover member 70. , And four connection members 150, 150,... For connecting the main body side engaging portion 110 and the lid side engaging portion 120, respectively, and the case lid member 70 is mounted on the case main body member 60. Sometimes, the main body side engaging portion 110 and the lid side engaging portion 120 are configured to be connectable.
[0046]
The main body side engaging portion 110 includes a main body side accommodating portion 111 provided integrally with the case main body member 60 and a main body side engaging assisting member 130 fixed to the main body side accommodating portion 111. As shown in FIG. 9, the main body side accommodating portion 111 is formed in a rectangular parallelepiped box shape (using a transparent resin material) at the right end of the case main body member 60 and opened on the front side (upper side in FIG. 9). ) Integrally formed. In addition, a main body side receiving space HS <b> 1 capable of storing the main body side engagement assisting member 130 is formed inside the main body side receiving portion 111. Body-side mounting guide grooves 112, 112 are formed in a concave shape on two opposing surfaces that form a short side of a rectangular cross section on the inner surface side of the body-side housing portion 111, and the body of the body-side engagement assisting member 130. The side mounting guide portions 131 and 131 are engaged with each other.
[0047]
The main body side connecting guide ribs 113 and 113 are formed to protrude from two opposite sides of the front side edge of the main body side accommodating portion 111 that form the long side of the rectangular cross section. The side rib engaging portions 124 and 124 are engaged with each other. Body-side rib engaging portions 114, 114 are formed on two opposite sides of the front-side edge of the body-side accommodating portion 111 that form a short side of the rectangular cross section, and the lid of the lid-side engaging portion 120. The side connection guide ribs 123 and 123 are engaged with each other.
[0048]
The lid-side engagement portion 120 includes a lid-side accommodation portion 121 that is integrally formed with the case lid member 70 and a lid-side engagement assisting member 140 that is fixed to the lid-side accommodation portion 121. As shown in FIG. 10, the lid-side accommodating portion 121 is integrally formed with the case lid member 70 in the shape of a rectangular parallelepiped box having an open back side (upward in FIG. 10) at the right end of the case lid member 70. When 70 is attached to the case main body member 60, the main body side accommodating portion 111 is opposed to and overlapped. In addition, a lid side accommodation space HS <b> 2 that can accommodate the lid side engagement assisting member 140 is formed inside the lid side accommodation portion 121. Lid-side mounting guide grooves 122 and 122 are formed in concave shapes on the two opposing surfaces that form the long side of the rectangular cross section on the inner surface side of the lid-side accommodating portion 121. The side mounting guide portions 141 and 141 are engaged with each other.
[0049]
Lid-side connecting guide ribs 123, 123 are formed on the opposite sides of the short side of the rectangular cross section of the back-side edge of the lid-side housing 121, and the lid-side housing 121 is formed on the main body side. When it overlaps facing the accommodating part 111, it engages with the main body side rib engaging parts 114, 114 of the main body side accommodating part 111, respectively. On the two opposite sides that form the long side of the rectangular cross section of the back side edge of the lid side accommodating part 121, lid side rib engaging parts 124, 124 are formed in a concave shape, and the lid side accommodating part 121 is When facing and overlapping with the main body side accommodating portion 111, the main body side connecting guide ribs 113 and 113 of the main body side accommodating portion 111 are engaged with each other.
[0050]
Thereby, when the lid side accommodating part 121 overlaps with the main body side accommodating part 111, the main body side coupling guide ribs 113, 113 and the lid side rib engaging parts 124, 124 engage with each other, and the lid side coupling Since the guide ribs 123 and 123 and the main body side rib engaging portions 114 and 114 are engaged with each other, the lid side accommodating portion 121 (the lid side engaging portion 120) with respect to the main body side accommodating portion 111 (the main body side engaging portion 110). Positioning can be performed more reliably.
[0051]
A connecting portion 125 (see FIGS. 6 and 12) between the lid side engaging portion 120 (the lid side accommodating portion 121) and the case lid member 70 is configured to be cuttable. The side engaging portion 120 (lid side accommodating portion 121) and the case lid member 70 can be separated. As described above, a transparent resin material is used as the material of the main substrate case 55 (the case main body member 60 and the case lid member 70). Among them, it is preferable to use an ABS resin. Thereby, when the cutting operation is performed on the member as described above, the butadiene, which is a component of the ABS resin, has a rubber property, and the member is easily whitened without being cracked. An effect is obtained. Further, even if the main board case 55 is forcibly opened, there is an effect that the member is similarly whitened and the trace is easily left clearly.
[0052]
As shown in FIG. 9, the body side engagement assisting member 130 has a rectangular parallelepiped box shape having an opening on the front side (upper side in FIG. 9), and is a colored translucent resin made of ABS resin, polycarbonate (PC), or the like. The material is integrally molded by a molding means such as injection molding, and is configured to be accommodated in the main body side accommodation space HS1 of the main body side accommodation portion 111. In addition, a main body side engagement space CS <b> 1 that can accommodate half of the connection member 150 is formed inside the main body side engagement assisting member 130.
[0053]
Body-side mounting guide portions 131 and 131 are formed in convex shapes on the two opposing surfaces that form the short side of the rectangular cross section on the outer surface side of the body-side engagement assisting member 130. The main body side mounting guide grooves 112 and 112 are engaged with each other. Then, from the opening side (front side) of the main body side housing portion 111, the main body side engagement assisting member 130 is engaged with the main body side housing portion while the main body side mounting guide portions 131, 131 are engaged with the main body side mounting guide grooves 112, 112. 111, the main assembly side engagement assisting member 130 is welded to the main assembly side accommodating portion 111 in this state, and as shown in FIG. The main housing side housing space HS1 of the side housing portion 111 is fixed. Note that the means for fixing the main body side engagement assisting member 130 to the main body side accommodating portion 111 is not limited to welding, and for example, an adhesive or the like may be used.
[0054]
At this time, the main assembly side engagement assisting member 130 is fixedly installed in the main assembly side accommodation space HS1 of the main assembly side accommodation portion 111, so that the main assembly side engagement portion 110, that is, the main assembly side engagement portion 110 is incorporated in the main assembly side engagement portion 110. A joint space CS1 is formed (in place of the main body-side accommodation space HS1). Thus, since the main body side engaging portion 110 is composed of the separate main body side accommodating portion 111 and the main body side engaging auxiliary member 130, the main body side engaging portion 110 (that is, the case main body member 60). Can be more difficult to copy and can be expected to prevent fraud. Moreover, since the material of the main body side accommodating portion 111 is a transparent resin material, the material of the main body side engagement assisting member 130 is a colored translucent resin material different from that of the main body side accommodating portion 111. It can be easily determined whether or not the regular main body side engagement assisting member 130 is fixed to the portion 111, that is, whether or not the case main body member 60 is a duplicate.
[0055]
Body-side hole portions 132 and 132 are formed on two surfaces of the body-side engagement assisting member 130 that are opposed to each other by forming a short side of a rectangular cross section, and the body-side engagement protrusions 151 and 151 of the connection member 150 It is comprised so that engagement is possible. As shown in FIG. 11, in the state where the main body side engagement assisting member 130 is fixed to the main body side accommodating portion 111, the outer side of the main body side hole portion 132 is blocked by the main body side accommodating portion 111, The main body side that can be engaged with the main body side engagement protrusion 151 of the connection member 150 is formed on the engagement auxiliary member 130, that is, the two surfaces that form the short side of the rectangular cross section on the inner surface side of the main body side engagement portion 110. A recess 132a is formed.
[0056]
Body-side protrusion guide portions 133 and 133 are formed on two faces that form and face the long side of the rectangular cross section on the inner surface side of the body-side engagement assisting member 130, and the lid-side engagement protrusion of the connection member 150. 152, 152 can be accommodated.
[0057]
As shown in FIG. 10, the lid side engagement assisting member 140 has a rectangular parallelepiped box shape having an opening on the back side (upper side in FIG. 10), and is a colored translucent resin made of ABS resin, polycarbonate (PC), or the like. The material is integrally molded by molding means such as injection molding, and is configured to be housed in the lid-side housing space HS2 of the lid-side housing portion 121. In addition, a lid side engagement space CS <b> 2 that can accommodate half of the connection member 150 is formed inside the lid side engagement assisting member 140.
[0058]
Lid-side mounting guide portions 141 and 141 are formed on the two opposing surfaces that form the long side of the rectangular cross section on the outer surface side of the lid-side engagement assisting member 140, and The lid side mounting guide grooves 122 and 122 are engaged with each other. Then, from the opening side (rear surface side) of the lid-side housing 121, the lid-side engagement assisting member 140 is moved to the lid-side housing while the lid-side mounting guides 141, 141 are engaged with the lid-side mounting guide grooves 122, 122. The lid side engagement assisting member 140 is inserted into the lid side accommodation space HS2, and in this state, the lid side engagement assisting member 140 is welded to the lid side accommodating portion 121. The lid housing space HS2 of the side housing portion 121 is fixed. Note that the means for fixing the engagement assisting member 140 to the lid side accommodating portion 121 is not limited to welding, and for example, an adhesive or the like may be used.
[0059]
At this time, the lid-side engagement assisting member 140 is fixedly installed in the lid-side accommodation space HS2 of the lid-side accommodation portion 121, so that the lid-side engagement member 120, that is, the lid-side engagement portion 120 is placed inside the lid-side engagement portion 120. A joint space CS2 is formed (instead of the lid-side accommodation space HS2). Thus, since the lid side engaging part 120 is composed of the separate lid side accommodating part 121 and the lid side engaging auxiliary member 140, the lid side engaging part 120 (that is, the case lid member 70). Can be more difficult to copy and can be expected to prevent fraud. Moreover, since the material of the lid side accommodation part 121 is a transparent resin material, the material of the lid side engagement assisting member 140 is a colored translucent resin material different from that of the lid side accommodation part 121. It can be easily determined whether or not the regular lid-side engagement assisting member 140 is fixed to the portion 121, that is, whether or not the case lid member 70 is a duplicate.
[0060]
In the state where the body side engagement assisting member 130 is fixed to the body side accommodating portion 111 and the lid side engagement assisting member 140 is fixed to the lid side accommodating portion 121, the body side accommodating portion 111 (ie, When the main body side engaging portion 110) and the lid side accommodating portion 121 (that is, the lid side engaging portion 120) overlap each other, the main body side engaging space CS1 and the lid side engaging space CS2 are connected. An engagement space CS in which the connection member 150 can be disposed is formed.
[0061]
Cover-side hole portions 142 and 142 are formed on two surfaces of the lid-side engagement assisting member 140 that are opposed to each other by forming the long side of the rectangular cross section, and the lid-side engagement protrusions 152 and 152 of the connection member 150 It is comprised so that engagement is possible. As shown in FIG. 12, in the state where the lid-side engagement assisting member 140 is fixed to the lid-side accommodating portion 121, the outer side of the lid-side hole 142 is blocked by the lid-side accommodating portion 121. On the two surfaces facing and forming the long side of the rectangular cross section on the inner surface side of the engagement auxiliary member 140, that is, the lid-side engagement portion 120, the lid side that can be engaged with the lid-side engagement protrusion 152 of the connection member 150 A recess 142a is formed.
[0062]
Lid-side projection guide portions 143 and 143 are formed on two opposite surfaces of the lid-side engagement assisting member 140 that form the short side of the rectangular cross section on the inner surface side. 151 and 151 can be accommodated.
[0063]
As shown in FIGS. 13 to 16, the connecting member 150 has a hollow rectangular parallelepiped shape having an opening at one end, and is integrally formed by a molding means such as injection molding using a resin material such as ABS resin or polycarbonate (PC). Molded. In addition, the connection member 150 is configured to be disposed in the engagement space CS so that one end side of the connection member 150 faces the main body side engagement portion 110 and faces the unlock direction opposite to the lock direction. .
[0064]
Main body side engaging protrusions 151 and 151 are formed on two opposing surfaces forming a short side of a rectangular cross section on one end side of the connecting member 150, and the one end side of the connecting member 150 is the main body. When positioned in the side engagement space CS1, the main body side recesses 132a and 132a are engaged, and when one end of the connection member 150 is positioned in the lid side engagement space CS2, the lid side protrusion guide portions 143 and 143 are disengaged. It is to be accommodated.
[0065]
Lid-side engaging projections 152 and 152 are formed on two opposite surfaces forming the long side of the rectangular cross section on the other end side of the connecting member 150 so as to be swingable inward and outward, as shown in FIG. When the other end side of the connection member 150 is located in the lid side engagement space CS2, the connection side 150 engages with the lid side recesses 142a and 142a, and as shown in FIG. 18, the other end side of the connection member 150 is in the main body side engagement space CS1. When it is located, it abuts on the inner surface of the main assembly side engagement assisting member 130 and is accommodated in the main assembly side projection guide portions 133 and 133 in a non-engaged state.
[0066]
A direction identification mark 153 that can identify the orientation of the connection member 150 is formed on the other end surface of the connection member 150. As shown in FIG. 13, the direction identification mark 153 is a “lock” character recessed on the other end surface of the connection member 150, and the connection member 150 is disposed in the engagement space CS facing the lock direction. In some cases, the direction identification mark 153, that is, the other end side of the connection member 150 faces forward (toward the lid side engaging portion 120). Thereby, it is possible to prevent an error in the arrangement direction (locking direction and unlocking direction) of the connection member 150 in the engagement space CS, and further, the main body side engagement portion in the locked state via the connection member 150. 110 and the lid side engaging part 120 can be recognized.
[0067]
The direction identification mark 153 (character portion) may be colored differently from the other portions, and the direction identification mark 153 (character portion) on the other end surface of the connecting member 150 may be identified in a region other than the direction identification mark 153 (character portion). You may make it color different from the surface except the mark 153 (character part) and the other end surface of the connection member 150. In this way, the discrimination power of the direction identification mark 153 can be improved.
[0068]
Further, the direction identification mark 153 is not limited to the “lock” character, and may be a character, a symbol, a picture, or the like. Further, the direction identification mark 153 may be formed on the other end surface of the connection member 150 by printing, painting, or the like, or a print seal or the like may be attached. In addition, the direction identification mark 153 is not limited to the other end surface of the connection member 150, but may be provided on one end surface or a side surface of the connection member 150 so that the direction of the connection member 150 can be identified as direction identification means.
[0069]
In the unauthorized opening prevention mechanism 100 configured as described above, in order to connect the main body side engaging portion 110 and the lid side engaging portion 120 with the case lid member 70 mounted on the case main body member 60, first, 4 One of the connecting members 150, 150,... Is oriented in the locking direction, and one end side of the connecting member 150 is inserted into the main body side engaging space CS1 in the main body side engaging portion 110. At this time, the main body side engagement protrusions 151 and 151 of the connection member 150 abut on the inner side of the main body side engagement assisting member 130 and swing inward, and one end of the connection member 150 is in the main body side engagement space CS1. When it reaches the bottom, it is restored and swayed outward to engage with the body side recesses 132a and 132a of the body side engagement assisting member 130. That is, one end side of the connection member 150 facing the lock direction is engaged with the main body side engaging portion 110 via the main body side engagement assisting member 130.
[0070]
Next, the other three connecting members 150, 150, 150 are directed in the unlocking direction, and the other end side of the connecting member 150 is inserted into the main body side engaging space CS 1 in the main body side engaging portion 110. At this time, the lid-side engagement protrusions 152, 152 of the connection member 150 abut on the inner surface of the body-side engagement assisting member 130 and swing inward. The protrusion guides 133 and 133 are accommodated in a non-engaged state. That is, as shown in FIG. 18, the other end side of the connection member 150 facing the unlocking direction is accommodated and held in the main body side engaging portion 110 via the main body side engagement assisting member 130 so that it can be inserted and removed. At this time, the lid-side engagement protrusions 152, 152 press the inner side surface of the main body side engagement assisting member 130 by elastic force, and the other end side of the connection member 150 is difficult to come off from the main body side engagement portion 110. Yes.
[0071]
Subsequently, the case lid member 70 is swung and attached to the case main body member 60, and the lid side engaging portion 120 (lid side accommodating portion 121) faces the main body side engaging portion 110 (main body side accommodating portion 111). And overlap. Then, in the connection member 150 facing the lock direction, the other end side of the connection member 150 is inserted into the lid-side engagement space CS2 in the lid-side engagement portion 120. At this time, the lid-side engagement protrusions 152, 152 of the connection member 150 abut on the inner side of the lid-side engagement assisting member 140 and swing inward, and the other end of the connection member 150 is the lid-side engagement space CS2. When it reaches the bottom of the lid, it is restored and swung outward and engages with the lid-side recesses 142a and 142a of the lid-side engagement assisting member 140. That is, the other end side of the connection member 150 facing the lock direction is engaged with the lid side engaging portion 120.
[0072]
On the other hand, in the connection member 150 facing the unlocking direction, one end side of the connection member 150 is inserted into the lid-side engagement space CS2 in the lid-side engagement portion 120. At this time, the main body side engagement protrusions 151 and 151 of the connection member 150 abut on the inner surface of the lid side engagement assisting member 140 and swing inward. In this state, the lid side of the lid side engagement assisting member 140 The protrusion guides 143 and 143 are accommodated in a non-engaged state. That is, one end side of the connecting member 150 facing the unlocking direction is accommodated in the lid side engaging portion 120 so that it can be inserted and removed.
[0073]
In this way, when the case lid member 70 is swung and attached to the case main body member 60 so that the lid side engaging portion 120 overlaps the main body side engaging portion 110, the four connecting members 150, 150,... Are disposed in the engagement space CS formed by connecting the main body side engagement space CS1 and the lid side engagement space CS2 so as to face the locking direction, and the other three connection members 150. , 150, 150 are disposed in the engagement space CS in the unlocking direction.
[0074]
That is, one end side of the connecting member 150 facing the lock direction is engaged with the main body side engaging portion 110 via the main body side engaging auxiliary member 130, and the other end side is connected to the lid side via the lid side engaging auxiliary member 140. By engaging with the engaging portion 120, the main body side engaging portion 110 and the lid side engaging portion 120 are coupled via the connecting member 150, and as shown in FIGS. 3 and 17, the case main body member 60 and The case lid member 70 is coupled and held in a closed state. Thereby, the main body side engaging part 110 and the lid side engaging part 120 can be easily connected, and the case main body member 60 and the case cover member 70 can be easily coupled and held in the closed state.
[0075]
If the case body member 60 and the case lid member 70 are coupled and held in a closed state by the unauthorized opening prevention mechanism 100, the connection member 150 and the body housed in the engagement space CS facing the lock direction. It is very difficult to release the engagement between the side engagement portion 110 and the lid side engagement portion 120, and when the main substrate case 55 (main substrate assembly 50) is opened, the connecting portion 125 is cut to close the lid side engagement. Since it is necessary to separate the joint portion 120 and the case lid member 70, the cutting trace clearly remains after the main substrate case 55 (main substrate assembly 50) is opened, and unauthorized opening can be detected at an early stage.
[0076]
In addition, one end side of the connection member 150 is positioned in the main body side engagement space CS1, the main body side engagement protrusions 151 and 151 engage with the main body side recesses 132a and 132a, and the other end side of the connection member 150 is the lid side engagement. Since the lid-side engaging projections 152, 152 engage with the lid-side recesses 142a, 142a located in the joint space CS2, the body-side engaging portion 110 and the lid-side engaging portion 120 can be more easily connected. The case body member 60 and the case lid member 70 can be easily coupled and held in the closed state.
[0077]
Furthermore, since the connection member 150 is formed in a rectangular parallelepiped shape and does not rotate in the engagement space CS formed in accordance with the connection member 150, when the connection member 150 faces the locking direction, the connection member 150 is easily connected to the main body side. The engagement protrusions 151 and 151 can be engaged with the main body side recesses 132a and 132a, and the lid side engagement protrusions 152 and 152 can be engaged with the lid side recesses 142a and 142a, so that the connecting member 150 is unlocked. , The lid-side engagement projections 152, 152 are easily accommodated in the body-side projection guides 133, 133 (in the body-side engagement space CS1) in a non-engaged state, and the body-side engagement projections 151, 151 Can be accommodated in the lid-side protrusion guide portions 143 and 143 (in the lid-side engagement space CS2) in a non-engaged state.
[0078]
Further, since the connection member 150 can be disposed in the engagement space CS in the lock direction and the unlock direction opposite to the lock direction, the main body side engagement portion 110 and the lid side engagement portion 120 Can be selectively coupled in a locked state (in which the case lid member 70 and the case main body member 60 are coupled and held) or in an unlocked state (in which the case lid member 70 is detachable from the case main body member 60). .
[0079]
Next, in the main board assembly 50 in which the case main body member 60 and the case lid member 70 are coupled and held in the closed state as described above, the maintenance and inspection of the main control board 51 accommodated therein is performed. Further description will be made with reference to FIGS. Here, FIG. 19 is a perspective view of the main board assembly 50 in the opened state, FIG. 20 is a perspective view showing a state in which the connecting member 150 facing the lock direction is inserted into the main body side engaging portion 110, and FIG. FIG. 6 is a perspective view showing a state in which a connection member 150 facing the lock direction is extracted from the main body side engaging portion 110.
[0080]
When performing maintenance and inspection work, for example, using a tool such as a nipper, a connecting portion 125 (for example, as shown in FIG. 3, below the right end of the case lid member 70) between the lid side engaging portion 120 and the case lid member 70. The connecting part 125) located is cut off. As a result, the lid-side engaging portion 120 and the case lid member 70 are separated, so that the main board case 55 (main board assembly 50) can be opened as shown in FIG. Maintenance and inspection of the main control board 51 attached to the side can be performed. The other three connection members 150, 150, 150 are disposed in the engagement space CS so as to face the unlocking direction, and are accommodated in the main body side engagement portion 110 and the lid side engagement portion 120 so as to be insertable / removable. It is.
[0081]
Four main body side engaging portions 110 and four lid side engaging portions 120 are provided at the right ends of the case main body member 60 and the case lid member 70, respectively, but the main body side engaging portion 110 and the lid side engaging portion 120 are provided. When the case main body member 60 and the case lid member 70 are joined and held in a closed state, one set of the main body side engaging portion 110 and the lid side engaging portion 120 is connected by the connecting member 150.
[0082]
For this reason, even if the connection part 125 with the case cover member 70 of the lid side engagement part 120 connected with the main body side engagement part 110 is cut, the other set can still be used, and the maintenance inspection is performed as described above. After the process is completed, any one set of unused main body side engaging portion 110 and lid side engaging portion 120 are connected by the connecting member 150. For this reason, in the case of the main board assembly 50 in the present embodiment, three maintenance inspections can be performed on the way.
[0083]
In order to connect any one set of unused main body side engaging portion 110 and lid side engaging portion 120 with the connecting member 150, as shown in FIG. After extracting from the main body side engaging portion 110, as shown in FIG. 20, the connecting member 150 is inverted in the locking direction, and one end side of the connecting member 150 facing the locking direction is inserted into the main body side engaging portion 110. In this state, the case lid member 70 may be attached to the case main body member 60 again.
[0084]
According to the main board assembly 50 according to the present embodiment described above, the case body member 60 and the case lid member 70 are coupled and held in the closed state by the unauthorized opening prevention mechanism 100, so that the lock direction is set in the engagement space CS. It is very difficult to release the engagement between the connecting member 150 accommodated facing the main body side engaging portion 110 and the lid side engaging portion 120, and the main board case 55 (main board assembly 50) is opened. Since it is sometimes necessary to cut the connecting portion 125 to separate the lid-side engaging portion 120 and the case lid member 70, the cut trace remains clearly after the main board case 55 (main board assembly 50) is opened, which is illegal. Can be detected early.
[0085]
Further, since the connection member 150 can be disposed in the engagement space CS in the lock direction and the unlock direction opposite to the lock direction, the main body side engagement portion 110 and the lid side engagement portion 120 Can be selectively coupled in a locked state (in which the case lid member 70 and the case main body member 60 are coupled and held) or in an unlocked state (in which the case lid member 70 is detachable from the case main body member 60). .
[0086]
At the time of maintenance inspection, the connecting portion 125 is cut to open the main board case 55, and maintenance inspection is performed in this state. However, the case main body member 60 and the case lid member 70 have a plurality of sets on the main body side. Since the joint part 110 and the lid side engaging part 120 are provided, after the maintenance inspection is completed, the main body side engaging part 110 and the lid side engaging part 120 of the set in which the connecting part 125 has not been cut yet are unloaded. The connecting member 150 that has been inserted in the locking direction is extracted and reversed, and is inserted again in the locking direction, and the main body side engaging portion 110 and the lid side engaging portion 120 are connected to each other. 70 can be held in a closed state again.
[0087]
Further, one end side of the connection member 150 facing the lock direction is engaged with the main body side engaging portion 110 via the main body side engagement assisting member 130, and the other end side is connected to the lid side via the lid side engaging auxiliary member 140. Since it engages with the engaging part 120, the main body side engaging part 110 and the lid side engaging part 120 can be easily connected, and the case main body member 60 and the case cover member 70 are easily coupled in the closed state. Can be held.
[0088]
Furthermore, one end side of the connection member 150 is positioned in the main body side engagement space CS1, the main body side engagement protrusions 151 and 151 are engaged with the main body side recesses 132a and 132a, and the other end side of the connection member 150 is the lid side engagement. Since the lid-side engaging projections 152, 152 engage with the lid-side recesses 142a, 142a located in the joint space CS2, the body-side engaging portion 110 and the lid-side engaging portion 120 can be more easily connected. The case body member 60 and the case lid member 70 can be easily coupled and held in the closed state.
[0089]
Further, since the connection member 150 is formed in a rectangular parallelepiped shape and does not rotate in the engagement space CS formed in accordance with the connection member 150, when the connection member 150 faces the locking direction, it can be easily connected to the main body side. The engagement protrusions 151 and 151 can be engaged with the main body side recesses 132a and 132a, and the lid side engagement protrusions 152 and 152 can be engaged with the lid side recesses 142a and 142a, so that the connecting member 150 is unlocked. , The lid-side engagement projections 152, 152 are easily accommodated in the body-side projection guides 133, 133 (in the body-side engagement space CS1) in a non-engaged state, and the body-side engagement projections 151, 151 Can be accommodated in the lid-side protrusion guide portions 143 and 143 (in the lid-side engagement space CS2) in a non-engaged state.
[0090]
Further, the direction identification mark 153 formed on the other end surface of the connection member 150 can prevent an error in the arrangement direction (lock direction and unlock direction) of the connection member 150 in the engagement space CS. The main body side engaging portion 110 and the lid side engaging portion 120 in the locked state can be recognized via the connection member 150.
[0091]
In addition, the main body side engaging portion 110 is composed of a separate main body side accommodating portion 111 and a main body side engaging auxiliary member 130, and the lid side engaging portion 120 is separate from the separate lid side accommodating portion 121 and the lid side engaging portion. Since the auxiliary member 140 is configured, it is more difficult to duplicate the main body side engaging portion 110 and the lid side engaging portion 120 (that is, the case main body member 60 and the case cover member 70), and anti-fraud can be suppressed. .
[0092]
Furthermore, the material of the main body side accommodating portion 111 and the lid side accommodating portion 121 is a transparent resin material, whereas the material of the main body side engaging auxiliary member 130 and the lid side engaging auxiliary member 140 is the main body side accommodating portion 111 and Since it is a colored translucent resin material different from the lid-side housing 121, the main body-side housing 111 (and the lid-side housing 121) has a regular body-side engagement assisting member 130 (and the lid-side engagement assisting member 140). Can be easily determined, that is, whether or not the case body member 60 (and the case lid member 70) is a duplicate.
[0093]
Further, the inner guard rib 64 of the case main body member 60 and the outer guard rib 78 of the case cover member 70 are connected to the edge of the case cover member 70 (outer guard rib 78) and the edge of the case main body member 60 (edge contact portion 65). When a tool (not shown) such as a wire or a cell plate is inserted into the case through the gap, a small gap is generated between the outer guard rib 78 of the case lid member 70 and the case body. Since it has to pass through a slight labyrinth-shaped gap formed between the inner guard ribs 64 of the member 60, it is possible to prevent tools such as wires and cell plates from being illegally inserted into the case. .
[0094]
Further, the substrate contact portion 79 formed on the case lid member 70 is in contact with the edge of the main control board 51, and the surface of the main control board 51 that faces the case lid member 70 is covered with the case lid member 70. Since the main control board 51 is attached to the inner surface side of the case lid member 70, even if a tool such as a wire or a cell plate is inserted into the case from the gap between the case main body member 60 and the case lid member 70, these Since the tool cannot reach the surface of the main control board 51 that faces the case lid member 70, it is possible to more reliably prevent an illegal act on the main control board 51.
[0095]
Further, since the peripheral rib 83 of the inner cover 80 contacts the edge of the main control board 51 and the surface of the main control board 51 facing the case main body member 60 is covered with the inner cover 80, the case main body member 60. Even if a tool such as a wire or a cell plate is inserted into the case through a gap between the case cover member 70 and the case cover member 70, these tools are not included in the main body of the main control board 51 (in addition to the surface facing the case cover member 70). Since the surface facing 60 cannot be reached, it is possible to more reliably prevent an illegal act on the main control board 51.
[0096]
Further, by using an ABS resin as a material for the main board case 55 (the case body member 60 and the case lid member 70), when a cutting operation is performed on the connecting portion 125, butadiene which is a component of the ABS resin has a rubber property. Thus, since the member is easily whitened without being cracked, the effect of clearly leaving the cut traces is obtained. Further, even if the main board case 55 is forcibly opened, there is an effect that the member is similarly whitened and the trace is easily left clearly.
[0097]
In the above-described embodiment, the inner guard rib 64 is formed inside the edge portion of the case body member 60, the outer guard rib 78 is formed outside the edge portion of the case lid member 70, and the outer guard rib 78 is the inner guard rib 64. However, the present invention is not limited to this, and as shown in FIG. 22, the outer edge of the case body member 60 is located outside the edge of the case body member 60. The outer guard rib 268 is formed on the inner side of the case lid member 274 and the inner guard rib 274 is formed on the inner side of the edge portion of the case lid member 70, and the outer guard rib 268 is positioned on the outer side of the inner guard rib 274. H.275 may be contacted.
[0098]
In the above-described embodiment, the main board assembly 50 including the main board case 55 and the unauthorized opening prevention mechanism 100 is provided in the pachinko machine PM. However, the present invention is not limited to this. It may be provided in a gaming machine such as a ball gaming machine.
[0099]
Furthermore, in the above-described embodiment, the main body side engagement protrusions 151 and 151 are formed on the two opposing surfaces that form the short side of the rectangular cross section of the connecting member 150, and the long side of the rectangular cross section of the connecting member 150 is formed. The lid-side engaging projections 152, 152 are formed on the two faces that are formed and opposed to each other. However, the present invention is not limited to this, and the main body is formed on the two faces that form the long side of the rectangular cross section of the connecting member 150 and face each other. The side engagement protrusions 151 and 151 may be formed, and the cover side engagement protrusions 152 and 152 may be formed on two surfaces facing each other by forming a short side of the rectangular cross section of the connection member 150. At this time, the formation positions of the main body side concave portion and the lid side concave portion, and the main body side protrusion guide portion and the lid side protrusion guide portion are also reversed.
[0100]
Further, in the above-described embodiment, the connection member 150 is formed in a rectangular parallelepiped shape having a rectangular cross section, but is not limited thereto, and may be formed in a rectangular parallelepiped shape or a cubic shape, for example. It may be formed into a cylindrical shape.
[0101]
Furthermore, in the above-described embodiment, the case main body member 60 and the case lid member 70 are provided with four sets of the main body side engaging portion 110 and the lid side engaging portion 120 (including the connection member 150 and the like). It is not limited, only one set may be provided, and a plurality of sets other than the four sets may be provided. In the above-described embodiment, only one set of the main body side engaging portion 110 and the lid side engaging portion 120 is connected at one time. However, the present invention is not limited to this, and a plurality of sets may be connected at one time. Good.
[0102]
【The invention's effect】
As described above, according to the unauthorized opening prevention mechanism for a substrate case according to the present invention, the main body side engaging portion and the main body side engaging auxiliary member are engaged with the main body side engaging auxiliary member and the lid side engaging auxiliary member. Since the lid side engaging portion is connected, the main body side engaging portion and the lid side engaging portion can be easily connected, and the case main body member and the case lid member are easily coupled and held in the closed state. be able to.
[0103]
Moreover, since the connection part with the case main body member or the case cover member in at least one of the main body side engaging part and the lid side engaging part is configured to be cut, if the connecting part is cut, the case main body member The case lid member can be removed, but when the connecting portion is cut in this way, the destruction trace remains, so that it can be easily found and illegal acts can be effectively suppressed. Furthermore, the main body side engaging portion is composed of a separate main body side accommodating portion and a main body side engaging auxiliary member, and the lid side engaging portion is composed of a separate lid side accommodating portion and a lid side engaging auxiliary member. Therefore, it becomes more difficult to duplicate the main body side engaging portion and the lid side engaging portion (that is, the case main body member and the case lid member), and it is expected that fraud is suppressed.
[Brief description of the drawings]
FIG. 1 is a front view of a pachinko machine shown as an example of a gaming machine provided with a board case according to the present invention.
FIG. 2 is a rear view showing the back side of the pachinko machine.
FIG. 3 is a perspective view of a main substrate assembly.
FIG. 4 is a cross-sectional side view of the main substrate assembly.
FIG. 5 is an exploded perspective view of a main board assembly.
FIG. 6 is a rear view of the case lid member.
7A is an enlarged view showing a state where the locking arm is locked to the locking projection, and FIG. 7B is an enlarged side sectional view showing a state where the locking arm is locked to the locking projection. is there.
8A is an enlarged view showing a state before the locking arm is locked to the locking protrusion, and FIG. 8B is an enlarged view showing a state before the locking arm is locked to the locking protrusion. It is a sectional side view.
FIG. 9 is an exploded perspective view of a main body side engaging portion configured in the unauthorized opening prevention mechanism.
FIG. 10 is an exploded perspective view of a lid side engaging portion configured in the unauthorized opening prevention mechanism.
FIG. 11 is a front view of a main body side engaging portion.
FIG. 12 is a rear view of the lid side engaging portion.
FIG. 13 is a perspective view of a connection member configured in the unauthorized opening prevention mechanism.
14 is a perspective view of the connection member in FIG. 13 as viewed from the opposite side.
15A is a side view seen from the long side direction in the rectangular cross section of the connecting member, and FIG. 15B is a plan cross sectional view along the arrow XV-XV in FIG. 15A.
16A is a side view of the connecting member viewed from the short side direction in the rectangular cross section, and FIG. 16B is a plan sectional view taken along arrows XVI-XVI in FIG.
FIG. 17 is a side sectional view of the main board assembly in a closed state.
FIG. 18 is a side sectional view of the main board assembly 50 in an open state.
FIG. 19 is a perspective view of the main board assembly in an open state.
FIG. 20 is a perspective view showing a state in which the connecting member facing the locking direction is inserted into the main body side engaging portion.
FIG. 21 is a perspective view showing a state in which the connecting member facing the unlocking direction is extracted from the main body side engaging portion.
FIG. 22 is an enlarged side sectional view showing a modified example of the outer guard rib and the inner guard rib.
[Explanation of symbols]
L lever
PA game area
PM Pachinko machine
CS engagement space
CS1 Body side engagement space
CS2 Lid side engagement space
HS1 main unit side accommodation space
HS2 lid side accommodation space
1 outer frame
2 Front frame
3a, 3b Hinge member
4 Locking device
5 Glass door
6 bowl
7a, 7b, 7c Hinge mechanism
8 Operation handle
10 Game board
30 Back set board
31 ball storage tank
32 Tank rail
33 Alignment waiting passage
34 prize ball cassette
35 prize ball discharge passage
40 Power supply board assembly
50 Main board assembly
51 Main control board (51a board mounting hole, 51b pin hole)
52 CPU
53 Left side connector
54 Right side connector
55 Main board case
60 Case body member
61 Reinforcement rib
62 Hinge shaft
63 Locking arm
64 Inside guard rib
65 Edge contact part
70 Case lid member
71 board mounting part (71a screw hole, 71b boss part, 71c board mounting surface)
72 Left connector opening
73 Right connector opening
74 Hinge arm
75 Locking protrusion
76 Locking auxiliary protrusion
77 Finger rest
78 Outer guard rib
79 Substrate contact part
80 Inner cover
81 Positioning pin
82 Inner cover mounting part (82a screw passage hole)
83 Surrounding ribs
85 Lid side pin hole
89 Board mounting screws
100 Unauthorized Opening Prevention Mechanism
110 Body side engaging part
111 Body side housing
112 Body side guide groove
113 Body side connecting guide rib
114 Body side rib engaging part
120 Lid side engaging part
121 Cover side housing
122 Lid side guide groove
123 Lid side guide rib
124 Lid engagement part on lid side
125 connecting part
130 Body side engagement assisting member
131 Body side mounting guide
132 Body side hole (132a Body side recess)
133 Main body side protrusion guide
140 Lid-side engagement assisting member
141 Lid side mounting guide
142 lid side hole (142a lid side recess)
143 Lid side protrusion guide
150 connecting member
151 Body side engagement protrusion
152 Lid-side engagement protrusion
153 Direction identification mark
268 outer guard rib (another embodiment)
274 Inner guard rib (another embodiment)
275 Edge contact portion (another embodiment)

Claims (3)

ケース本体部材と、前記ケース本体部材に開閉可能に装着されるケース蓋部材とを備え、前記ケース本体部材に前記ケース蓋部材を閉止状態で装着して形成されるケース内部に遊技機に搭載された電子部品を制御する制御基板を収容する基板ケースにおいて、
前記ケース本体部材に連結して設けられた本体側係合部と、前記ケース蓋部材に連結して設けられた蓋側係合部と、前記本体側係合部と前記蓋側係合部とを連結可能な接続部材とを備え、
前記接続部材を用いて前記本体側係合部と前記蓋側係合部とを連結させることで前記ケース蓋部材が前記ケース本体部材に閉止状態で装着された状態を保持し、前記本体側係合部および前記蓋側係合部の少なくともいずれかにおける前記ケース本体部材もしくは前記ケース蓋部材との連結部を切断することで前記ケース本体部材から前記ケース蓋部材を開放することができるように構成された基板ケースの不正開放防止機構であって、
前記本体側係合部が、
前記ケース本体部材に一体に設けられ、前記蓋側係合部と連結される側の一端が開口した本体側収容空間が形成された本体側収容部と、
前記本体側収容空間内に固設されて前記接続部材と係合可能な本体側係合補助部材とから構成され、
前記蓋側係合部が、
前記ケース蓋部材に一体に設けられ、前記本体側係合部と連結される側の一端が開口した蓋側収容空間が形成された蓋側収容部と、
前記蓋側収容空間内に固設されて前記接続部材と係合可能な蓋側係合補助部材とから構成されており、
前記接続部材を前記本体側係合補助部材と前記蓋側係合補助部材とに係合させることにより、前記本体側係合部と前記蓋側係合部とが連結されるように構成されていることを特徴とする基板ケースの不正開放防止機構。A case body member, and a case lid member that is attached to the case body member so as to be openable and closable, and is mounted on a gaming machine inside a case formed by attaching the case lid member to the case body member in a closed state. In a board case that houses a control board that controls electronic components,
A main body side engaging portion provided connected to the case main body member; a lid side engaging portion provided connected to the case lid member; the main body side engaging portion; and the lid side engaging portion . A connecting member that can be coupled,
By connecting the body side engaging portion and the lid side engaging portion using the connection member, the case lid member is held in a closed state on the case body member, and the body side engagement The case lid member can be opened from the case body member by cutting the case body member or the connecting portion with the case lid member in at least one of the joint portion and the lid side engaging portion. A mechanism for preventing unauthorized opening of the printed circuit board case,
The main body side engaging portion is
A main body side housing portion formed integrally with the case main body member, and formed with a main body side housing space in which one end on the side connected to the lid side engaging portion is opened;
It is composed of a main body side engagement auxiliary member fixed in the main body side accommodation space and engageable with the connection member,
The lid side engaging portion is
A lid-side housing portion formed integrally with the case lid member and formed with a lid-side housing space in which one end on the side connected to the body-side engaging portion is opened;
A lid side engagement auxiliary member fixed in the lid side accommodation space and engageable with the connection member;
The main body side engaging portion and the lid side engaging portion are coupled by engaging the connecting member with the main body side engaging auxiliary member and the lid side engaging auxiliary member. A mechanism for preventing unauthorized opening of a substrate case. 前記本体側係合補助部材が前記接続部材の一端側を収容して係合可能な本体側係合空間を有して構成され、前記本体側係合空間が前記蓋側係合部と連結される側に開口するようにして前記本体側係合補助部材が前記本体側収容空間内に収容されるとともに溶着もしくは接着されて前記本体側係合部に固設され、The main body side engagement assisting member is configured to have a main body side engagement space which can accommodate and engage one end side of the connection member, and the main body side engagement space is connected to the lid side engagement portion. The main body side engagement assisting member is accommodated in the main body side accommodating space and is welded or bonded to be fixed to the main body side engaging portion so as to open to the main body side accommodating space,
前記蓋側係合補助部材が前記接続部材の他端側を収容して係合可能な蓋側係合空間を有して構成され、前記蓋側係合空間が前記本体側係合部と連結される側に開口するようにして前記蓋側係合補助部材が前記蓋側収容空間内に収容されるとともに溶着もしくは接着されて前記蓋側係合部に固設されていることを特徴とする請求項１に記載の基板ケースの不正開放防止機構。The lid-side engagement assisting member is configured to have a lid-side engagement space that can receive and engage the other end side of the connection member, and the lid-side engagement space is connected to the body-side engagement portion. The lid-side engagement assisting member is accommodated in the lid-side accommodation space and is welded or bonded to be fixed to the lid-side engagement portion so as to open to the closed side. The unauthorized opening prevention mechanism for a substrate case according to claim 1. 前記本体側係合部および前記蓋側係合部が透明樹脂材料から作られ、前記本体側係合補助部材および前記蓋側係合補助部材が有色樹脂材料から作られていることを特徴とする請求項１もしくは２に記載の基板ケースの不正開放防止機構。The main body side engaging portion and the lid side engaging portion are made of a transparent resin material, and the main body side engaging auxiliary member and the lid side engaging auxiliary member are made of a colored resin material. The mechanism for preventing unauthorized opening of a substrate case according to claim 1 or 2.
JP2003080571A 2003-03-24 2003-03-24 Mechanism for preventing unauthorized opening of circuit board case Expired - Fee Related JP3691041B2 (en)

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JP4684178B2 (en) * 2006-06-22 2011-05-18 株式会社ソフイア Game machine
JP5534194B2 (en) * 2010-03-05 2014-06-25 株式会社三洋物産 Game machine

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