JP4570124B2

JP4570124B2 - Game board opening and closing mechanism

Info

Publication number: JP4570124B2
Application number: JP2003033423A
Authority: JP
Inventors: 恒吉大山
Original assignee: Sammy Corp
Current assignee: Sammy Corp
Priority date: 2003-02-12
Filing date: 2003-02-12
Publication date: 2010-10-27
Anticipated expiration: 2023-02-12
Also published as: JP2004242745A

Description

【０００１】
【発明の属する技術分野】
本発明は、前面に遊技領域が設けられた遊技盤と、この遊技盤を着脱可能に収容する枠部材とを備え、遊技領域に遊技球を打ち出して遊技を行うように構成された弾球遊技機に関し、なお詳細には遊技盤を枠部材の所定位置に開閉および着脱可能に支持する遊技盤の開閉着脱機構に関する。
【０００２】
【従来の技術】
上記のような遊技盤と枠部材とを備える弾球遊技機として、パチンコ機、アレンジボール機、雀球遊技機等が一般的に知られている。この種の遊技機の代表としてパチンコ機を例に挙げて説明すると、パチンコ機は外郭方形状の外枠に開閉搭載枠たる前枠が横開き開閉可能にヒンジ結合され、この前枠に所要のゲージ設定で遊技領域が形成された遊技盤が立設姿勢で組み付けられている。遊技盤の前方にはガラス扉が横開き開閉可能に前枠に取り付けられており、常には遊技盤の前面を覆って遊技領域を透視可能に閉鎖保持されている。前枠の下部には遊技球発射装置および操作ハンドルが設けられて遊技領域の所望位置に遊技球を打ち出し得るように構成されており、遊技領域に打ち出した遊技球が遊技領域を落下移動する過程で入賞具に入賞するように操作ハンドルを操作して遊技を行うようになっている。
【０００３】
このような構成のパチンコ機にあって、遊技盤は、パチンコ機の機種変更に対する生産対応の柔軟性を確保し、またいわゆる盤面替えや遊技盤の保守交換等に迅速に対応できるように、遊技盤の主要な形状寸法が共通化されており、一般的に、前枠に遊技盤の外形よりも幾分大きめな枠形状に形成された収容枠に着脱可能に収容され、収容枠に設けられた係止機構によって前枠の所定位置に固定保持されるように構成されている。遊技盤の収容形態としては、遊技盤を前枠の後面側から収容枠に着脱する遊技盤後方着脱形態と、前枠の前面側から収容枠に着脱する遊技盤前方着脱形態とがあり、ともに実用化されている。一方、係止機構には、収容枠に収容された遊技盤を強固に固定保持することが基本的機能として求められるが、着脱操作の容易性や迅速性等も同時に要求される。このため、近年では遊技盤を収容枠に収容して操作レバーを一定の固定角度位置に回動操作したときに遊技盤が前枠の所定位置に固定保持される形態の固定装置、いわゆるレバー回動型の固定装置（施錠装置）が考案されている（特許文献１参照）。
【０００４】
例えば、特許文献１に記載された施錠装置は、上述した遊技盤前方着脱形態のパチンコ機において、収容枠（セット保持枠）の所定位置に設けられた保持部と、この保持部に着脱可能に嵌合セットされて回転可能に支持される施錠具とを備え、これらが収容枠の四隅位置などの複数カ所に設けられて構成される。施錠具には前後方向に延びる軸部の後側に収容枠側の保持部に支持される回動支盤が、軸部の前側に指先操作可能な操作部および係合部がともに一体に形成されており、保持部に回動可能に嵌合支持された施錠具を１８０度回動させたときに、軸部から偏心位置にある係合部が遊技盤の前面側に旋回移動して遊技盤側の係合受部と係合し、この係合部と保持部との間に遊技盤を挟持して固定保持するように構成されている。
【０００５】
【特許文献１】
特開２０００−２８８２１５号公報
【０００６】
【発明が解決しようとする課題】
ところで、遊技盤はパチンコ機にとってゲームを展開する場であり、遊技者を惹きつけて飽きさせないように趣向を凝らした構成が要求される。そこで、近年では、ゲーム展開を多様化させるために液晶表示装置が採用されるとともにそのサイズが年々大型化し、また画面表示の高度化に伴って画像表示基板が大型化し、あるいは入賞装置やランプ装置が複雑化するなど、遊技盤に組み付けられる各種遊技構成部品が高度化、複雑化して遊技盤全体の重量が増加の一途をたどっている。また遊技盤自身の外形寸法が大型化する傾向も見られるようになってきている。
【０００７】
このため、遊技盤の装着作業は、大型かつ重量のある遊技盤を支持して収容枠に収容し、さらに係止機構の各部を位置合わせして係合させた状態で片手で遊技盤を支持しながら係止機構を固定操作しなければならず、熟練作業者にとっても煩雑で重労働であるという問題があった。また遊技盤を取り外す脱着作業は、係止機構を解放状態にして遊技盤を収容枠から引き出す操作を行うが、このときには収容枠と遊技盤との間のわずかな隙間を利用して遊技盤を引き出す必要があり、また係止機構の開放時または収容枠から引き出す際に遊技盤の全重量が急に作用するため、装着作業と同様に煩雑かつ重労働であり、適切な支持を怠ると遊技盤を落下させてしまうおそれがあるという問題があった。
【０００８】
本発明はこのような問題や課題に鑑みてなされたものであり、遊技盤の着脱作業を容易化できるような着脱機構を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記目的達成のため、本発明の遊技盤着脱機構は、前面に遊技領域が設けられた遊技盤と、この遊技盤を所定位置で着脱可能に収容する収容部が設けられた枠部材とを備え、遊技領域に遊技球を打ち出して遊技を行うように構成された弾球遊技機において、枠部材の正面視左右一方側配設されて、上下に延びるヒンジピンを有した固定ヒンジ部材と、遊技盤の左右一方側に配設されて、ヒンジピンの直径よりも大きな溝幅で水平方向に延びてヒンジピンと係合可能なヒンジ溝部を有し、ヒンジピンにヒンジ溝部が係合されて枠部材に対して遊技盤を揺動可能に支持する揺動ヒンジ部材と、枠部材の左右一方側に枠部材内方に突出して配設され、遊技盤を枠部材に収容させる際に遊技盤の前面側に当接して、遊技盤をガイドするとともに遊技盤を後面側に押圧する押さえ部材を備え、枠部材の正面視左右他方側および遊技盤の左右他方側に備えられ、押さえ部材により押圧された状態で閉鎖角度位置に位置した遊技盤を枠部材に係止して固定保持する係止機構をさらに備え、係止機構は、遊技盤を左右一方側に押圧する遊技盤左右方向押圧手段を有し、ヒンジピンにヒンジ溝部が係合されて遊技盤が枠部材に収容され、係止機構により遊技盤が固定保持されるときに、押さえ部材により後面側に押圧された揺動ヒンジ部材のヒンジ溝部をヒンジピンに押し当てて、前後への移動を規制した状態で遊技盤を収容するとともに、遊技盤左右方向押圧手段により左右一方側に押圧された揺動ヒンジ部材のヒンジ溝部をヒンジピンに押し当てて、左右への移動を規制した状態で遊技盤を収容するように構成される。
【００１０】
このような構成の開閉着脱機構では、枠部材に配設された固定ヒンジ部材と、遊技盤の一側に配設されて固定ヒンジ部材と係脱および係合状態で相対揺動が可能な揺動ヒンジ部材とによって、遊技盤が収容部に着脱および開閉可能に収容される。このため、遊技盤を装着する装着作業では、揺動ヒンジ部材を固定ヒンジ部材に係合させることに注目して作業を行えばよく、あとはこれらのヒンジ機構に支持された遊技盤を閉止することで遊技盤が所定位置に配設される。また遊技盤を取り外す脱着作業では、ヒンジ機構に支持された遊技盤を閉止位置から開放し、遊技盤の下縁を支持しやすい状態にして遊技盤を取り外すことができる。
また、本構成の開閉着脱機構では、枠部材内方に突出して配設され、遊技盤を枠部材に導入する際に遊技盤をガイドするとともに、遊技盤を枠部材に収容した状態では遊技盤の前面側に当接して遊技盤を後面側に付勢する押さえ部材が備えられている。このため、揺動ヒンジ部材を固定ヒンジ部材に係合支持させ遊技盤を枠部材に収容した状態では遊技盤が押さえ部材と当接して後方に付勢され、遊技盤を揺動閉止させることで遊技盤が所定位置に配設される。従って、このような遊技盤の開閉着脱機構によれば軽い操作力で遊技盤の装着作業を行うことができる。また、押さえ部材の付勢力によって遊技盤が付勢支持されるため、固定ヒンジ部材と揺動ヒンジ部材との係合部分に多少大きめのクリアランスを設定してもガタ等を生じることがなく、不快な振動や騒音を低減して遊技性を向上させるとともに長期信頼性が高い開閉着脱機構を提供することができる。
また、揺動ヒンジ部材が固定ヒンジ部材に係合され遊技盤が前記枠部材に収容されたときに、押さえ部材が遊技盤の前面に当接し遊技盤を後方に付勢して遊技盤の前後方向の位置決め保持をするとともに、係止機構が遊技盤を係止固定するときに、遊技盤左右方向付勢手段が遊技盤を枠部材の一側方に付勢して前記遊技盤の左右方向の位置決め保持をし、ガタや振動を生じることなく確実に係止保持される。
【００１２】
【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、好適な実施例を挙げて添付図面を参照しながら詳細に説明する。なお実施例では、前枠の正面奥部に遊技盤が収容保持された形態のパチンコ機に本発明を適用した場合を主として説明する。
【００１３】
まず、パチンコ機ＰＭの概要構成を図１および図２を参照して要約説明する。
ここで、図１はパチンコ機ＰＭのガラス扉５を開放した状態におけるパチンコ機ＰＭの正面図、図２はガラス扉５および遊技盤２０を取り外した状態におけるパチンコ機ＰＭの正面図（ガラス扉５については背面図）である。
【００１４】
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て開閉搭載用の前枠２が互いの正面左側上下に配設されたヒンジ機構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ダブル錠と称される施錠装置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。
【００１５】
前枠２の前面側には、前枠２の前面域に合わせた方形状のガラス扉５および球皿６が正面左側に設けられたヒンジ機構７ａ，７ｂ，７ｃ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および球皿施錠装置を利用して前枠２の前面を覆う閉鎖状態に保持される。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が取り付けられている。前枠２の上部には方形枠状の収容枠１０が前枠２と一体に成型されており、この収容枠１０に遊技盤固定装置ＦＳを利用して遊技盤２０が着脱可能に立設保持される。
【００１６】
遊技盤２０は、所定板厚の積層合板の表面にセルを貼り付け、これを所定形状にルーター加工した化粧板（「ベニヤ」とも称される）２１を基板として構成される。化粧板２１の前面側には、上下２分割のレール飾り２２，２３がビス止めされてその内側に略円形の遊技領域ＰＡが区画形成され、この遊技領域ＰＡに多数本の遊技釘とともに風車や各種入賞具２４、遊技の進行状況に応じて所定の図柄を表示させる図柄表示装置２５などの遊技構成部品が取り付けられ、遊技領域ＰＡの下端部には入賞具２４に入賞せずに落下した遊技球を遊技盤２０の裏面側に排出させるアウト口２７が設けられている。
【００１７】
常には遊技盤２０の前面を覆って閉鎖保持されるガラス扉５は、中央に前後連通する窓口開口を有して樹脂成型された扉枠５１の背面側に、前後２枚のガラス板が一体化されたガラスアッセンブリ５２がヒンジ機構５３ａ，５３ｂによって横開き開閉および着脱可能に取り付けられ、ガラス施錠装置５４によってガラス扉５の窓口開口を覆う閉止位置に係止保持されている。また、球皿６の背後に位置する前枠２の下部領域には遊技補助盤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、操作ハンドル８の回動操作に基づいて遊技盤２０に遊技球を打ち出す遊技球発射装置や、遊技の展開状態に応じて効果音を発生させる音響装置などが設けられている。
【００１８】
前枠２の裏面側には、中央に前後連通する開口を有して前枠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が着脱可能にセット保持される。裏セット盤３０の各部には、詳細図示省略するが、遊技球を貯留する球貯留タンクや球貯留タンクから供給された遊技球を整列させる整列通路、遊技盤２０における入賞状態等に基づいて遊技球を払い出す球払出装置、球払出装置から払い出された遊技球を球皿６に導く球払出通路などの賞球機構が設けられるとともに、遊技盤２０の裏面側に排出された遊技球を集合させて遊技施設の回収バケットに排出させる排出通路などが設けられている。また裏セット盤３０の裏面側には、電源基盤や主基板などの各種回路基盤および電子部品等が取り付けられ、これらがワイヤーハーネスで接続されて遊技可能に構成される。
【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１球ずつ遊技球発射装置に送り出され、遊技球発射装置のハンマにより遊技盤２０の遊技領域ＰＡに打ち出されて、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、遊技盤２０は前枠２の前方から収容枠１０に着脱可能に収容され、遊技盤固定装置ＦＳを利用して収容枠１０内の所定位置に固定保持される。
【００２１】
遊技盤固定装置ＦＳは、収容枠１０および遊技盤２０の正面左側上下に設けられた開閉着脱機構１００と、互いの正面右側上下に設けられた係止機構２００とを主体として構成され、本実施例では係止機構２００による遊技盤２０の固定忘れを防止する固定忘れ防止機構２５０を併設した例を示している。遊技盤固定装置ＦＳでは、遊技盤２０が開閉着脱機構１００によって収容枠１０に揺動開閉および着脱可能に支持され、係止機構２００によって収容枠１０の所定位置に固定保持される。また固定忘れ防止機構２５０は係止機構２００が未固定状態（係止待機状態）であるときに、この状態を明確にして遊技盤２０の固定忘れを未然に防止する機構である。以下、まず図３〜図８の各図を主に参照しながら開閉着脱機構１００の構成から順次詳細に説明する。
【００２２】
なお図３〜図８の各図について予め簡単に説明すると、図３および図４はそれぞれ開閉着脱機構１００を分離させた状態における上部ヒンジ構造１０１および下部ヒンジ構造１０２の斜視図、図５および図６はそれぞれ遊技盤２０を閉止させた状態における上部および下部ヒンジ構造１０１，１０２の正面図、図７および図８は遊技盤２０を閉止させた状態における上部および下部ヒンジ構造１０１，１０２の平面図（部分平断面図）である。
【００２３】
開閉着脱機構１００は、収容枠１０の内側に配設された上下一対の固定ヒンジ部材１１１，１１２と、遊技盤２０の外周部に配設されて上下の固定ヒンジ部材とそれぞれ係脱および係合状態で相対揺動が可能な上下一対の揺動ヒンジ部材１２１，１２２とを備えて構成され、遊技盤側の上下の揺動ヒンジ部材１２１，１２２を収容枠側の上下の固定ヒンジ部材１１１，１１２に係合させることで遊技盤２０が収容枠１０に揺動開閉可能に支持される。
【００２４】
また開閉着脱機構１００を機能的に分類すると、上部固定ヒンジ部材１１１と上部揺動ヒンジ部材１２１とで上部ヒンジ構造１０１が、下部固定ヒンジ部材１１２と下部揺動ヒンジ部材１２２とで下部ヒンジ構造１０２が構成され、これら上下一対のヒンジ構造１０１，１０２により遊技盤２０が収容枠１０に着脱および揺動開閉可能に支持される。
【００２５】
上部固定ヒンジ部材１１１は、全体として側面視Ｌ字状の板状体をなし、収容枠１０の前面に固定される固定部１１１ａと、この固定部１１１ａの上部が直角に折り曲げられて前方に突出する支持板部１１１ｂ、この支持板部の下面に下方に突出して固着された円柱状のヒンジピン１１１ｃ、固定部１１１ａに形成されたサラモミ孔形態のネジ挿通孔１１１ｈなどを主体として構成される。上部固定ヒンジ部材１１１は、所定板厚の鋼板を打ち抜きおよびプレス成型してＬ字アングル状に形成した後、支持板部１１１ｂにヒンジピン１１１ｃをカシメ圧着またはリベット締結することで形成される。
【００２６】
収容枠１０の内側左上部には、上部固定ヒンジ部材１１１の配設位置に合わせてネジ挿通孔１１１ｈと位置整合するネジ受容孔が形成されており、ネジ挿通孔１１１ｈにサラ小ネジを挿通させてネジ受容孔に螺合締結させることにより、上部固定ヒンジ部材１１１が収容枠１０上方の所定位置にネジ固定される。
【００２７】
下部固定ヒンジ部材１１２は、全体として側面視クランク状の板状体をなし、収容枠１０に支持される支持板部１１２ｂと、この支持板部の前後がそれぞれ上方および下方に直角に折り曲げられた上下の固定部１１２ａ、支持板部１１２ｂの上面に上方に突出して固着された円柱状のヒンジピン１１２ｃ、上下の固定部１１２ａに形成されたサラモミ孔形態のネジ挿通孔１１２ｈなどを主体とし、上部固定ヒンジ部材１１１と同様の板材を同様の加工手段により加工成形して形成される。
【００２８】
収容枠１０の内側左下部には、下部固定ヒンジ部材１１２の配設位置に合わせて固定ヒンジ収容溝１２が設けられ、この収容溝における前後の立設面にネジ挿通孔１１１ｈと位置整合するネジ受容孔１２ｈが形成されている。固定ヒンジ収容溝１２は、下部固定ヒンジ部材１１２の形状および板厚に合わせて凹状に形成されており、この収容溝１２に下部固定ヒンジ部材１１２を収容させたときに、固定部１１２ａの前面および支持板部１１２ｂの上面が収容枠１０の内面と同一面に配設されて、下部固定ヒンジ部材１１２が周囲の枠面から突出しないように平坦に配設される。下部固定ヒンジ部材１１２は、このように下部固定ヒンジ部材１１２を固定ヒンジ収容溝１２に収容させた状態で、前後のネジ挿通孔１１２ｈにサラ小ネジを挿通させてネジ受容溝１２ｈに締め込むことによりネジ固定される。
【００２９】
こうして上下の固定ヒンジ部材１１１，１１２が収容枠１０に取着されると、上下の支持板部１１１ｂ，１１２ｂが所定間隔を隔てて上下平行に配設され、これらの支持板部から突出するヒンジピン１１１ｃ，１１２ｃが相対向して同一軸上に配設される。また、下部固定ヒンジ部材１１２は固定ヒンジ収容溝１２に収容されて固定され、周囲の枠面からヒンジピン１１２ｃのみが上方に突出して配設される。
【００３０】
上下の揺動ヒンジ部材１２１，１２２は、ともに側面視Ｌ字状の板状体をなし、上下揺動ヒンジ部材の中間に遊技盤に直交方向に立てた面に対して面対称（ミラーイメージ）に形成される。そこで、まず図４に全体形状が明示的に示される下部揺動ヒンジ部材１２２について説明すると、下部揺動ヒンジ部材１２２は、化粧板２１の背面に固定される固定部１２２ａと、この固定部１２２ａの下部が直角に折り曲げられて前方に突出するヒンジプレート１２２ｂ、このヒンジプレート１２２ｂに左右方向に延びて形成されたヒンジ溝１２２ｃ、固定部１２２ａに裏面側から形成されたサラモミ孔形態のネジ挿通孔１２２ｈなどからなり、上下の固定ヒンジ部材１１１，１１２と同様の板材を同様の加工手段により加工成形して形成される。
【００３１】
下部揺動ヒンジ部材１２２は、この下部揺動ヒンジ部材が化粧板２１にネジ固定された取付状態において、平面視化粧板２１から前後左右に突出しないように形成されている。具体的には、下部揺動ヒンジ部材１２２の前後方向の外形寸法が化粧板２１の板厚と同一またはこれより幾分小さめに形成され、下部揺動ヒンジ部材１２２の後端角部に化粧板２１と同様の円弧状の逃げ部１２２ｒが形成されて、下部揺動ヒンジ部材１２２が化粧板２１の左端角部に合わせて取り付けられた取付状態において化粧板２１から突出しないようになっている。
【００３２】
ヒンジ溝１２２ｃは、平面視において左端開放のＵ字溝状をなし右方溝端はヒンジピン１１２ｃの外径と同一半径の円弧状に形成されている。またヒンジ溝１２２ｃは前方の溝面が化粧板２１の前面と平行に形成される一方、後方の溝面が斜め後方に延びて形成されており、図１１に下部ヒンジ構造１０２の平面図を示すように、左端の開口部の溝幅Ｗがヒンジピン１１２ｃの直径よりも大きな開口寸法になっている。
【００３３】
一方、遊技盤２０の左下角部には、遊技盤２０の裏面側に下部揺動ヒンジ部材の固定部１２２ａを収容する固定収容部３２ａが形成され、遊技盤２０の下端外周部に下部揺動ヒンジ部材のヒンジプレート１２２ｂを収容する切り欠き部３２ｂが形成されている。
【００３４】
固定収容部３２ａは、下部揺動ヒンジ部材１２２の板厚と同一またはこれより幾分大きめの切り込み深さで、固定部１２２ａの形状に合わせて化粧板２１の裏面をルータ加工することにより形成され、この固定収容部３２ｂに固定部１２２ａをネジ固定したときに、固定部１２２ａを収容して下部揺動ヒンジ部材１２２が化粧板２１の裏面よりも後方に突出しないようになっている。また、このように化粧板２１の裏面側に固定部１２２ａを設け、盤面と直交方向にねじ止めすることにより、遊技盤２０の美観を損ねることなく、かつ積層合板の積層方向と直交方向にネジを打ち込んで下部揺動ヒンジ部材１２２を強固に固定することができる。
【００３５】
切り欠き部３２ｂは、下部固定ヒンジ部材１１２におけるヒンジピン１１２ｃの突出高さよりも幾分大きめの切り込み深さで、化粧板２１の下端外周部をルータ加工することにより形成され、下部揺動ヒンジ部材１２２を取り付けたときにヒンジプレート１２２ｂをこの切り欠き部内に収容して、下部揺動ヒンジ部材１２２が化粧板２１の外周方向に突出しないようになっている。
【００３６】
下部揺動ヒンジ部材１２２は、ヒンジプレート１２２ｂの左端角部を化粧板２１の下面および左側面の交点（遊技盤の外形輪郭線の交点）に合わせて配設し、固定部１２２ａの裏面側からネジ挿通孔１２２ｈを通して皿ビス１２３を固定収容部３２ａにねじ込むことにより、遊技盤２０の左下角部に固定される。そしてこのように下部揺動ヒンジ部材１２２が取り付けられると、下部揺動ヒンジ部材１２２における固定部１２２ａが固定収容部３２ａに収容され、ヒンジプレート１２２ｂが切り欠き部３２ｂに収容されて、下部揺動ヒンジ部材１２２が遊技盤２０の前後および外周方向（遊技盤の外形輪郭線よりも外側）に突出しないように固定配設される。またヒンジプレート１２２ｂの上面と切り欠き部３２ｂの下向き面との間に、ヒンジピン１１２ｃの頭部を受容可能なピン収容空間が形成される。
【００３７】
上部揺動ヒンジ部材１２１は、化粧板２１の背面に固定される固定部１２１ａ、固定部１２１ａの上部が直角に折り曲げられて前方に突出するヒンジプレート１２１ｂ、ヒンジプレート１２１ｂに左右方向に延びて形成されたヒンジ溝１２１ｃ、固定部に裏面側から形成されたサラモミ孔形態のネジ挿通孔１２１ｈなどからなり、前述したように、下部揺動ヒンジ部材１２２と上下面対称に構成されている。そこで、以下では上部揺動ヒンジ部材１２１およびその取付部について確認的に簡潔に説明する。
【００３８】
上部揺動ヒンジ部材１２１は、下部揺動ヒンジ部材１２２と同様に、上部揺動ヒンジ部材が化粧板２１にネジ固定された取付状態において、平面視、化粧板２１から前後左右に突出しないように形成されている。すなわち、上部揺動ヒンジ部材１２１の前後方向の外形寸法が化粧板２１の板厚と同一またはこれより幾分小さめに形成され、上部揺動ヒンジ部材１２１の後端角部に化粧板２１と同様の円弧状の逃げ部１２１ｒが形成されて、上部揺動ヒンジ部材１２１が取り付けられた取付状態において化粧板２１から突出しないようになっている。なお、ヒンジ溝１２１ｃは、既述したヒンジ溝１２２ｃと同様に形成されている。
【００３９】
遊技盤２０の左上角部には、遊技盤２０の裏面側に上部揺動ヒンジ部材の固定部１２１ａを収容する固定収容部３１ａが形成され、遊技盤２０の上方外周部に上部揺動ヒンジ部材のヒンジプレート１２１ｂを収容する切り欠き部３１ｂが形成されている。固定収容部３１ａは、上部揺動ヒンジ部材１２１の板厚と同一またはこれより幾分大きめの切り込み深さで、固定部１２１ａの形状に合わせて化粧板２１の裏面をルータ加工することにより形成され、この固定収容部３１ｂに固定部１２１ａをネジ固定したときに、固定部１２１ａを収容して上部揺動ヒンジ部材１２１が化粧板２１の裏面よりも後方に突出しないようになっている。なお、化粧板２１の裏面側に固定部１２１ａを設けて盤面と直交方向にねじ止めすることで上述した下部揺動ヒンジ部材１２２と同様の効果を得ることができる。
【００４０】
また切り欠き部３１ｂは、遊技盤２０の左上端角部を大きく切り欠くとともに、上部固定ヒンジ部材１１２におけるヒンジピン１１２ｃの突出高さ位置（ピン頭部の高さ位置）よりも幾分低めの高さ位置までさらに化粧板２１の上端外周部をルータ加工することにより形成され、上部揺動ヒンジ部材１２１を取り付けたときに、ヒンジプレート１２１ｂをこの切り欠き部内に収容して、上部揺動ヒンジ部材１２１が化粧板２１の外周方向に突出しないようになっている。
【００４１】
上部揺動ヒンジ部材１２１は、ヒンジプレート１２１ｂの左端角部を化粧板２１におけるこの領域の上面および左側面の交点に合わせて配設し（図５を参照）、固定部１２１ａの裏面側からネジ挿通孔１２１ｈを通して皿ビス１２３を固定収容部３１ａにねじ込むことにより、遊技盤２０の左上部の所定高さ位置に固定される。なお上記所定高さ位置とは、上下のヒンジプレート１２１ｂ，１２２ｂの外面間隔が上下の固定ヒンジ部材における支持板部１１１ｂ，１１２ｂの内面間隔よりも幾分小さめとなる高さ位置をいう。
【００４２】
上部揺動ヒンジ部材１２１が取り付けられると、上部揺動ヒンジ部材１２１における固定部１２１ａが固定収容部３１ａに収容され、ヒンジプレート１２１ｂが切り欠き部３１ｂに収容されて、上部揺動ヒンジ部材１２１が遊技盤２０の前後および外周方向に突出しないように固定配設される。またヒンジプレート１２１ｂの下面と切り欠き部３１ｂの上向き面との間に、ヒンジピン１１１ｃの頭部を受容可能なピン収容空間が形成される。
【００４３】
こうして上下の揺動ヒンジ部材１２１，１２２が化粧板２１に取着されると、上下のヒンジプレート１２１ｂ，１２２ｂは、これらの外面間隔が上下の固定ヒンジ部材における支持板部１１１ｂ，１１２ｂの内面間隔よりも幾分小さめの間隔を有して上下平行に配設され、ヒンジプレートに形成された上下のヒンジ溝１２１ｃ，１２２ｃが平面視において上下重なって配設される。
【００４４】
そして、以上のように上下の固定ヒンジ部材１１１，１１２が収容枠１０の内側に取り付けられ、上下の揺動ヒンジ部材１２１，１２２が遊技盤２０の外周部に取り付けられると、上下のヒンジ溝１２１ｃ，１２２ｃがそれぞれヒンジピン１１１ｃ，１１２ｃとヒンジ溝の延びる方向に係脱可能になり、また係合状態では上下ヒンジピンが形成する揺動軸まわりに相対揺動可能になる。これにより遊技盤２０が収容枠１０に着脱可能かつ係合状態で横開き開閉可能に支持される。
【００４５】
さて、以上のように構成される上下のヒンジ構造１０１，１０２の中間に位置して、遊技盤２０を後方に押圧する押さえ部材１４０が設けられている。図９に押さえ部材１４０を取着する前の同部材および取り付け周辺部の斜視図を示し、図１２に押さえ部材１４０が取り付けられた状態で遊技盤２０を着脱する際の押さえ部材１４０の作用を平断面図として示すように、押さえ部材１４０は、全体としては平面視コの字状ないしユの字状で上下方向に延びて形成されている。
【００４６】
押さえ部材１４０は、上下に延びる帯板状の基板部１４１、基板部１４１の上下中間部が左方に延出されるとともに半円弧状に折り返されたアーチ部１４２、アーチ部１４２の端部が直角に折り返されて前方に延びる側辺部１４３、側辺部の前方が右方（収容枠１０の枠部内方）に折り曲げられて枠内に突出する押圧辺部１４４などからなり、所定板厚の鋼板を打ち抜きおよびプレス成型して図示形状に成形した後、必要に応じて所要の表面処理を施して形成される。
【００４７】
基板部１４１には、正面視において押圧辺部１４４が重ならない上下位置にサラモミ形態のネジ挿通孔１４１ｈが設けられ、また上下のネジ挿通孔１４１ｈの間に位置して収容枠に前方に突出形成された位置決めピン（不図示）と嵌脱可能なピン係合孔１４１ｐが形成されている。押圧辺部１４４は、側辺部１４３から収容枠の内側に向けて略直角に折り曲げられて基板部１４１と平行に延びる一方、押圧辺部１４４の先端側は前方に向けて緩やかなＲ状に形成され、化粧板２１の前面と滑らかに係合し得るようになっている。
【００４８】
一方、押さえ部材１４０が取り付けられる収容枠１０には、押さえ部材取付部３３が形成されている。押さえ部材取付部３３では、収容枠１０の前面が基板部１４１の板厚および形状に合わせて後方に凹設され基板収容部３３ａが形成されるとともに、この基板収容部３３ａに上下のネジ挿通孔１４１ｈと位置整合するネジボスおよびピン孔１４１ｐと位置整合する位置決めピンが形成されている。
また、基板収容部３３ａの左側方に位置して収容枠１０の左側面を左右に連通するスリット状のアーチ収容溝３３ｂが形成されており、アーチ部１４２を収容可能になっている。
【００４９】
押さえ部材１４０は、基板部１４１のピン係合孔１４１ｐを基板収容部３３ａの位置決めピンに嵌合させ、上下のネジ挿通孔１４１ｈにサラ小ネジを挿通させて締め込むことにより押さえ部材取付部３３に固定される。押さえ部材１４０がネジ固定されると、基板部１４１が収容枠１０の内面から突出することなく基板収容部３３ａに収容保持され、アーチ部１４２がアーチ収容溝３３ｂに収容され、側辺部１４３が収容枠１０の左側面と平行に前方に延び、押圧辺部１４４が収容枠１０の枠部内方（遊技盤方向）に向けて突出配設される。
【００５０】
ここで、収容枠１０の枠部内方に向けて突出する押圧辺部１４４は、基板部１４１と平行に延びる基端側の背面の配設位置が、上下のヒンジ構造１０１，１０２を係合させて遊技盤２０を揺動閉止させた状態における化粧板２１の前面の配設位置よりもわずかに後方に位置するように設定されている。一方、この基端側から緩やかなＲ状に形成された押圧辺部１４４の先端側では、その先端の延びる接線方向が遊技盤２０を装着する際の挿入角度より大きく設定され、その背面位置は閉止状態にある化粧板２１の前面よりも前方に位置するように設定されている。
【００５１】
そしてこのような取付状態にあって、押圧辺部１４４はアーチ部１４２の作用によって側辺部１４３を揺動アームとして左右方向に揺動変位可能であるとともに、アーチ部１４２が弾性変形することによって前後方向にも変位可能に支持され、また押圧辺部１４４自身の弾性力によって押圧辺部の基端側に対して先端側が前後に揺動変位可能に配設される。
【００５２】
これにより、上下のヒンジ構造１０１，１０２を係合させる際に、押圧辺部１４４の先端部が化粧板２１の導入を案内して上下のヒンジピン１１１ｃ，１１２ｃにヒンジ溝１２１ｃ，１２２ｃを容易に係合させることができ、またこのようにガイドさせた状態で化粧板２１を基板部１４１と押圧辺部１４４との間に斜めにスライド移動させて上下のヒンジピンとヒンジ溝とをヒンジ結合させることができる（図１２(ａ)を参照）。
【００５３】
一方、遊技盤２０を上下ヒンジピンによる揺動軸まわりに揺動させて収容枠１０内に閉止させた状態においては、押圧辺部１４４が化粧板２１の前面と係合して遊技盤２０を弾性的に後方に押圧する（図１２(ｂ)を参照）。このため閉止状態では上下のヒンジ溝１２１ｃ，１２２ｃがそれぞれヒンジピン１１１ｃ，１１２ｃと係合された状態で後方に押圧され、遊技盤２０が前後にガタついたり振動を生じたりすることがない。なお、この係合状態を詳細に見ると、ヒンジ溝１２１ｃ，１２２ｃの前方の溝面がヒンジピン１１１ｃ，１１２ｃの前方の周面に当接した状態で後方に付勢配設されており、ヒンジ溝１２１ｃ，１２２ｃにおける前方の溝面が遊技盤２０の左側の支持基準面（被支持基準面）を構成する。
【００５４】
化粧板２１の左側縁には、遊技盤２０を収容枠１０に斜めに挿入して上下のヒンジ構造１０１，１０２を係合させ揺動させたときに、裏面側の側縁角部が収容枠１０と当接しないようにＲ状に面取りされて逃げ面２１ｒが形成され、また化粧板２１の前面側にビス止めされる上レール飾り２２には、押圧辺部１４４の突出位置と整合してこの押圧辺部１４４を受容するための受容部３４が切り欠き形成されるとともに、左前端の角部が斜めに面取りされてテーパ面２２ｃが形成され遊技盤着脱時の角度許容度を拡大している。
【００５５】
なお、以上説明した実施例では、上下の固定ヒンジ部材１１１，１１２、上下の揺動ヒンジ部材１２１，１２２、および押さえ部材１４０を、それぞれ別個独立した部材で構成した例を示したが、上下の固定ヒンジ部材あるいは揺動ヒンジ部材を適宜一体化させることもできる。
【００５６】
例えば、図１０に示すように、上下に延びる帯板状の固定部１１５ａの上下を前方に折り曲げて支持板部１１５ｂ，１１５ｂを形成し、これらにヒンジピン１１５ｃ，１１５ｃ′を固着して上下に固定ヒンジ部を有する一体の固定ヒンジ部材１１５を形成することができる。また上下に延びる帯板状の固定部１２５ａの上下にヒンジ溝１２５ｃ，１２５ｃを形成するとともに前方に折り曲げてヒンジプレート１２５ｂ，１２５ｂを形成し、上下に揺動ヒンジ部を有する一体の揺動ヒンジ部材１２５を形成してもよい。さらに、固定ヒンジ部材１１５における上下の支持板部１１５ｂ，１１５ｂの中間に、前述した押さえ部材１４０と同様の構成の押さえ部１４５を形成して、固定ヒンジ部材と押さえ部材とを一体化することも可能である。
【００５７】
上記のような構成によれば、上下の支持板部１１５ｂ，１１５ｂの内面間隔やヒンジプレート１２５ｂ，１２５ｂの外面間隔を各部材の部品精度内に均一化できるとともに、部品点数および取付工数をともに削減することができる。なお、固定ヒンジ部材１１５を収容枠１０に取着するためのネジ挿通孔１１５ｈは、一般的には押さえ部１４５における押圧辺部１４８と前後に重ならない位置に配設されるが、固定ヒンジ部材１４５を固定するために必要なネジ本数や配設ピッチの関係で重複する場合や、押圧辺部１４８の上下位置では収容枠１０の背面側にネジボスを設けることが困難な場合等においては、押圧辺部１４８の背後中央に設けることも均等な荷重支持の上で好ましく、このような場合には押圧辺部１４８にネジ止め工具（ドライバー）を挿通させる工具挿通孔１４８ｈを設けることが好ましい。これにより、特殊な作業工具を用いることなく、また必要以上のネジを使用することなく、固定ヒンジ部材１１５を容易に固定しあるいは取り外すことができる。
【００５８】
さて、以上では収容枠１０および遊技盤２０の互いの左側に設けられた開閉着脱機構１００の構成を中心に説明してきたが、収容枠１０および遊技盤２０の右側には遊技盤２０の脱着作業を容易化する開放補助部材１５０、および収容枠１０に揺動閉止された遊技盤２０を係止保持させる係止機構２００が設けられている。
【００５９】
開放補助部材１５０は、図２に示すように収容枠１０の内部で上方の枠側係止構造２１０の下側に位置して設けられている。開放補助部材１５０は、この部材を取着する前の開放補助部材１５０および取付部周辺の斜視図を図１３に示し、開放補助部材１５０が取り付けられた状態で遊技盤２０を開閉する際の開放補助部材１５０の作用を図１４に平断面図として示すように、概略クランク状に折り曲げられた板状体で構成される。
【００６０】
開放補助部材１５０は、矩形フランジ状の基板部１５１、基板部１５１の左端が前方に凸の半円弧状に折り曲げられたアーチ部１５２、アーチ部１５２と繋がって後方に延びる側辺部１５３、側辺部の後部が左方（収容枠１０の枠部内方）に向けて折り曲げられた付勢片部１５４などからなり、所定板厚の鋼板を打ち抜きおよびプレス成型して図示形状に成形した後、必要に応じて所要の表面処理を施して形成される。
【００６１】
基板部１５１には、上下に所定ピッチをおいてナベ小ネジを挿通させるためのネジ挿通孔１５１ｈが穿設されている。側辺部１５３の前後方向寸法は収容枠１０の前後方向深さに合わせて形成されており、開放補助部材１５０を収容枠１０の所定位置に取り付けたときに、側辺部の後端、換言すれば付勢片部１５４の基端側の後面が収容枠１０の内面よりもわずかに前方に位置するように設定されている。また付勢片部１５４は、側辺部１５３の後端が幾分鋭角に折り曲げられて形成されており、先端側が左斜め前方に向かうように配設される。付勢片部１５４の先端は後方に向けてＲ状に形成され、化粧板２１の裏面と滑らかに係合し得るようになっている。
【００６２】
収容枠１０には、開放補助部材１５０を取り付ける補助部材取付部３５が形成されている。補助部材取付部３５では、収容枠１０の一部が基板部の配設位置形状に合わせて凹設され平坦な基板取着面３５ａが形成されるとともに、この基板取着面３５ａから後方に延びる円筒状のネジボス３５ｂが上下に所定間隔をおいて一体成型されている。
【００６３】
開放補助部材１５０は、基板部１５１を基板取着面３５ａに当接支持させ、上下のネジ挿通孔１５１ｈにナベ小ネジ１５６を挿通させてネジボス３５ｂに締め込むことで補助部材取付部３５に固定される。開放補助部材１５０がネジ固定されると、側辺部１５３が収容枠１０の右側面に沿って後方に延び、その後端から付勢片部１５４が収容枠１０の枠部内方に向けて突出し前端部が左斜め前方に浮き上がるように配設される。このように開放補助部材１５０が取り付けられると、付勢片部１５４は側辺部１５３および付勢片部の弾性力によってその先端側が前後に揺動変位可能に配設される。
【００６４】
また遊技盤２０側には、開放補助部材１５０の配設位置と整合して遊技盤２０の閉止時に開放補助部材１５０を受容する補助部材受容部３６が形成されている。補助部材受容部３６は開放補助部材１５０におけるアーチ部１５２および側辺部１５３を受容すべく、化粧板２１の整合位置が一部切り欠かれるとともに上レール飾り２２の立設壁面が一部左方にコの字状に屈曲形成されて形成され、遊技盤２０を揺動閉止させたときに、開放補助部材１５０と当接することなく補助部材受容部３６内にアーチ部１５２および側辺部１５３を受容可能になっている。
なお、上レール飾り２２の正面の面板は補助部材受容部３６の前方を覆って形成され、ここに指掛け可能な開放操作部２２ｍが形成されている。このため、作業者はこの開放操作部２２ｍを利用して容易に遊技盤２０を開放操作できるとともに、遊技機正面から開放補助部材１５０が直接視認されないようになっている。
【００６５】
このため、上下のヒンジ構造１０１，１０２を係合させて遊技盤２０を閉止方向に揺動させると、化粧板２１や上レール飾り２２が開放補助部材１５０と当接することなく補助部材受容部３６内にアーチ部１５２および側辺部１５３を受容して遊技盤の閉止方向への揺動を許容する。そして化粧板２１の裏面が収容枠１０の内面と平行になる直前の揺動角度位置で化粧板２１の裏面が枠内に斜め前方に突出する付勢片部１５４の先端部と滑らかに係合する。この接触状態から遊技盤２０がさらに閉止方向に揺動されると、開放補助部材１５０が弾性変形して付勢片部１５４の先端側が後方に揺動変位し、次述する係止機構２００によって係止固定される閉鎖角度位置では、図１４中に実線で示すように、付勢片部１５４が収容枠１０の内面と化粧板２１の裏面との間に挟持されるように配設される。
【００６６】
一方、閉鎖角度位置で遊技盤２０を後方に押圧する押圧力を解除すると、開放補助部材１５０に蓄えられていた弾性力により弾性変形前の形状に自己復帰し、付勢片部１５４の先端部が化粧板２１の裏面を前方に押圧して遊技盤２０を開放方向に揺動させる。これにより、遊技盤２０の右辺側が収容枠１０の内面からわずかに浮き上がり（図１４中の二点鎖線を参照）、開放操作部２２ｍに指をかけて遊技盤２０を容易に開放させることができる。
【００６７】
なお、実施例では前方にクランク状に形成されて収容枠１０の前面側から取り付ける形態の開放補助部材１５０を例示したが、開放補助部材を前方にＬ字状に形成して収容枠１０の右側面に固定し、あるいは右側面にスリット状の開口を設けてこの側面の外側で固定し、または開放補助部材を後方にクランク状に形成するとともに収容枠１０にスリット状の開口を設けて収容枠１０の裏面側で固定する形態としてもよい。また、開放補助部材の配設位置は付勢片部が化粧板２１を前方に押圧可能な場所であればよく、例えば上下の枠側係止構造２２０の中間部の他、これらの上下外側や左右中央部に設けてもよく、さらに複数カ所に設ける構成としてもよい。
【００６８】
次に、係止機構２００は、収容枠１０および遊技盤２０の正面右側の上下に設けられており、開閉着脱機構１００により揺動開閉可能に支持された遊技盤２０が閉鎖角度位置に閉止されたときに、この遊技盤２０を係止固定する機構である。係止機構２００は、収容枠１０側に設けられた枠側係止構造２１０と、遊技盤２０側に設けられた盤側係止構造２２０とから構成される。以下、図１５〜図２４の各図を参照して係止機構２００について説明する。
【００６９】
ここで、図１５〜図１８の各図には主として係止機構２００の各部の構成を示しており、このうち図１５は係止機構２００の主要構成を分解状態で示す斜視図、図１６は係止機構２００を構成する各部材の組み付け関係を分解状態で示す平断面図、図１７は係止機構２００における枠側係止構造のレバー部２１５ｃと盤側係止構造の係止受け部２２５との関係を示す平断面図（部分断面図）、図１８は係止機構２００を構成する主要部材の単体正面図である。
【００７０】
また、図１９〜図２４の各図は係止機構２００によって遊技盤２０を固定保持させる際の各部の位置関係および作用を主として示しており、図１９は枠側係止構造２１０と盤側係止構造２２０とを分離状態で示す正面図、図２０は遊技盤２０を着脱する際の枠側係止構造２１０と盤側係止構造２２０との関係を示す側断面図、図２１は係止機構２００による遊技盤２０の係止状態を示す側断面図、図２２は図２１中の矢印 F22−F22方向に見た背面図であって(ａ)図は係止待機状態における背面図、(ｂ)図は係止状態における背面図、図２３は係止機構２００による遊技盤の位置決め作用を説明するための係止状態における係止機構２００の平断面図、図２４は係止機構の許容度を説明するための正面図である。
【００７１】
係止機構２００の配設位置は、遊技盤２０に設けられた遊技領域ＰＡや発射通路の形成位置および開閉着脱機構１００との対称性などを考慮して、できるだけ均等に遊技盤２０を係止保持し得るように設定され、実施例では遊技領域ＰＡの外側の上下２カ所に設けた例を示している。各係止機構２００は、それぞれ収容枠１０に設けられた枠側係止構造２１０と、遊技盤２０に設けられた盤側係止構造２２０とからなる。
【００７２】
枠側係止構造２１０は、収容枠１０に前方に向けて膨出成型された固定支持部２１１、固定支持部２１１の背面側に形成されたボルト支持部２１２、ボルト支持部２１２に後方から圧入され前方の固定支持部２１１に延びて固定配設されたボルト２１３、後端側がボルト２１３のネジ部に螺合されて回動可能に支持される固定レバー２１５などからなる。
【００７３】
固定支持部２１１は、円筒状のレバー収容部２１１ａと円筒前端に円環状に形成された固定支持面２１１ｃとを有し、収容枠１０に前方に開く有底円筒状に形成されている。レバー収容部２１１ａの内径は、固定レバー２１５の回動軸部２１５ａの外径よりもわずかに大きめに形成されており、レバー収容部２１１ａに前方から回動軸部２１５ａを受容して回動自在に嵌合支持し得るようになっている。固定支持面２１１ｃは平坦に形成された円環状の支持面であり、上下左右の４カ所に設けられた固定支持部の固定支持面２１１ｃが同一面上に形成されて遊技盤１０の支持基準面を形成する。なお、この固定支持面２１１ｃの上下位置に前方に突出するガイドピン２１１ｐを形成することも好ましい実施形態であり、このガイドピン２１１ｐについては後に詳述する。
【００７４】
ボルト支持部２１２は、固定支持部２１１の底部に前後連通して開口された支軸孔２１２ａと、その後方に六角形状で前枠後面に開く頭部収容穴２１２ｃとを有し、収容枠１０に固定支持部２１１と一体に成型されている。支軸孔２１２ａはレバー収容部２１１ａと同軸に位置してボルト２１３の軸部２１３ａの外形よりもわずかに小径に形成されており、後方からボルト２１３が圧入されたときにボルトの軸部２１３ａを締め込むように拘持して、ボルト２１３が前後方向に移動しないように固定保持する。また、頭部収容穴２１２ｃはボルト頭部２１３ｃの六角形状に合わせてこれよりわずかに大きめに形成されており、後方からボルト２１３が圧入されたときにボルト頭部を収容してボルト２１３がボルトの軸部まわりに回動しないように保持する。
【００７５】
ボルト２１３は、軸部２１３ａ、軸部の前方に形成されたネジ部２１３ｂおよび後端部に形成されたボルト頭部２１３ｃを有し、一般に市販されている部分ネジタイプの六角ボルトを用いた例を示しており、固定レバー２１５を回動させたときに回動操作角に対して前後方向移動量が遊技盤２０を着脱固定するのに適したネジ部を有するボルトが用いられる。具体的には、本実施例に示す係止機構２００では、ネジピッチ１〜２mm程度のメッキボルトないしステンレスボルトを用いている。
【００７６】
ボルト２１３は前枠２の後面側からボルト支持部２１２に圧入され、ボルト前方のネジ部２１３ｂがレバー収容部２１１ａの軸心に位置して前方に延び、ボルト基端側の軸部２１３ａが支軸孔２１２ａに拘持され、ボルト頭部２１３ｃが頭部収容穴２１２ｃに収容されて、ボルト２１３が前後方向に移動したりボルトの軸部まわりに回動したりすることなくボルト支持部２１２に固定保持される。なお頭部収容穴２１２ｃをボルト頭部２１３ｃの形状に合わせた六角形に形成しているため、圧入固定するボルト２１３におけるネジ食い付き部のラジアル方向角度位置を６０度単位で設定する（または６０度の範囲内で略一定の角度位置に配設する）ことが可能である。
【００７７】
固定レバー２１５は、円柱状の回動軸部２１５ａと、この回動軸部２１５ａの軸心に後端側から形成された雌ネジ部２１５ｂ、回動軸部２１５ａの前方に回動軸部２１５ａを挟んで対向方向に張り出し成型されたレバー部２１５ｃなどを主体として構成され、例えば、ＡＢＳ樹脂やポリアセタール樹脂（ＰＯＭ）などの樹脂材料を用いて射出成型等の成形手段で一体に形成される。これにより、レバー部２１５ｃに対する雌ネジ食い付き部の角度位置を一定に形成することができる。なお、必要に応じて樹脂材料にガラス繊維を添加して部材強度を向上させ、または雌ネジ部２１５ｂにコイル状の金属製ネジインサートを挿入し、あるいは雌ネジ部を形成した金属製ブッシュを圧入ないしインサートモールドして補強する形態としてもよい。
【００７８】
また本実施例では、一方のレバー部２１５ｃの基部裏側に回動軸部２１５ａから円周外方に滑らかに張り出し成型された押圧部２１５ｄ、および回動軸部２１５ａの前端部に所定サイズの六角レンチの先端形状に合わせて形成された工具係合穴２１５ｓを設けた例を示している。ここで、押圧部２１５ｄは、対向方向に形成された２カ所のレバー部のうち、一方のレバー部の基部裏側に形成されるが、この押圧部２１５ｄの配設位置を明確化するために指示指標を設けることが好ましく、図では押圧部２１５ｄが形成された側と反対側のレバー部２１５ｃにマーカ２１５ｍを付した例を示している（図２２を参照）。
【００７９】
固定レバー２１５は、回動軸部２１５ａを固定支持部２１１の前方から固定レバー収容部２１１ａに嵌挿し、雌ネジ部２１５ｂをボルト２１３のネジ部２１３ｂに螺合させて所定量ねじ込むことで固定支持部２１１に回動可能に支持される。そしてこのように固定レバー２１５が取り付けられると、固定レバーのレバー部２１５ｃが固定支持面２１１ｃの前方に対向して配設され、雌雄ネジ部の螺合に応じて回動および前後方向に移動可能に配設されて、収容枠１０に枠側係止構造２１０が形成される。
【００８０】
ここで、前述したボルト２１３の圧入時におけるネジ食い込み部の角度設定、および固定レバー２１５の基準的なねじ込み深さは、マーカ２１５ｍの付されたレバー部２１５ｃを鉛直上方に位置させた状態で、レバー部背面の係止面２１５ｒと固定支持面２１１ｃとの前後方向間隔が後述する係止受け部２２５の厚さ寸法Ｈよりもわずかに大きく、この状態から固定レバー２１５をネジ締結方向（正面視時計回り）に９０度締め込んだときに、レバー部背面の係止面２１５ｒと固定支持面２１１ｃとの前後方向間隔が係止受け部２２５の厚さ寸法Ｈと同一寸法〜わずかに小さめになるように設定される。以下の説明では、このように取り付けられた固定レバー２１５を上記のようにマーカ２１５ｍの付されたレバー部２１５ｃが鉛直上方を向くように位置させた角度位置を「解放位置」という。
【００８１】
なお、固定支持面２１１ｃの上下位置にガイドピン２１１ｐを突出成型する場合には、ガイドピン２１１ｐの固定支持面２１１ｃからの突出高さは、係止受け部２２５の厚さ寸法Ｈよりも幾分小さく（例えば、ボルト２１３のネジピッチの１／２程度小さく）設定される。このようなガイドピン２１１ｐを設ける構成とすれば、固定レバー２１５をねじ込んで上記解放位置に設定する際に、上下のレバー部２１５ｃがガイドピン２１１ｐに当接した角度位置からネジを緩める方向に固定レバー２１５を１／２〜１回転させて、マーカ２１５ｍが付されたレバー部２１５ｃを鉛直上方に位置させることで、固定レバー２１５が解放位置に配設される。このため、角度設定用のジグを用いたり作業者の勘に頼ることなく、迅速且つ確実に固定レバー２１５を解放位置にセットすることができる。
【００８２】
以上のように構成される枠側係止構造２１０と位置整合して、遊技盤１０に盤側係止構造２２０が設けられている。盤側係止構造２２０は、化粧板２１に形成された係止受容部２２１と、上下のレール飾り２２，２３に一体成型された係止受け部２２５とを主体として構成される。
【００８３】
係止受容部２２１は、収容枠側の固定支持部２１１の配設位置および形状に合わせて、これより幾分大きめなＵ字切込み状に化粧板２１の板面を前後貫通してルータ加工することによって形成され、収容枠１０の背面から前方に突出する固定支持部２１１を受容可能に形成されている。
【００８４】
係止受け部２２５は、係止受容部２２１の直前に位置してレール飾２２，２３りの背面から前方に突出する円形フランジ状に形成され、前面側に平坦な係止受け面２２５ｃが設けられている。係止受け面２２５ｃには、固定レバー２１５を解放位置に配設したときのレバー部２１５ｃと相似形態の係止開口２２５ｂが前後連通して形成されている。係止開口２２５ｂは固定レバーの回動軸部２１５ａを挿通させる左右の円弧部とレバー部２１５ｃを挿通させる上下のレバー挿通部とからなり、固定レバー２１５を解放位置にした状態で固定レバーの前方部を前後に挿通可能になっている。
【００８５】
係止受け面２２５ｃの背面側には、係止開口２２５ｂの開口縁部に沿って後方に延びる支持リブ２２５ａが形成されている。支持リブ２２５ａにおける左右の円弧部は、回動軸部２１５ａの外径よりも幾分大きめで、固定支持面２１１ａの円環径に合わせて形成されており、固定レバー２１５を解放位置にして前端のレバー部２１５ｃを挿通させたときに、支持リブ２２５ａの円弧部後端面が固定支持面２１１ａに当接して支持される。すなわち支持リブ２２５ａの後端面が遊技盤２０の右側の支持基準面（被支持基準面）になっている。
【００８６】
一方、係止受け面２２５ｃと対向するレバー部２１５ｃの背面側には、後方に凸の円弧状に形成された係止面２１５ｒが設けられている（図１７を参照）。このため、固定レバー２１５を解放位置にして係止開口２２５ｂを通してレバー部２１５ｃを前方に突出させ、この状態（係止待機状態）から固定レバー２１５をネジ締結方向に回動させたときに、レバー部２１５ｃが係止開口２２５ｂの開口縁部に引っかかることなく回動し、および螺合に応じて後方に移動して、係止面２１５ｒが滑らかに係止受け面２２５ｃと係合する。
【００８７】
また、固定レバー２１５が解放位置に配設された状態では、回動軸部２１５ａに張り出し成型された押圧部２１５ｄが下側のレバー部（マーカ２１５ｍの付されていない側のレバー部）の基部裏側に位置しており、係止開口２２５ｂを通してレバー部２１５ｃを挿通させたときに、押圧部２１５ｄの最大径部分が下側のレバー挿通部にわずかに突出し、その左右において左右の支持リブ２１５ａの内周面と近接した状態で配設される（図２２(ａ)を参照）。
【００８８】
そして、この係止待機状態から固定レバー２１５をネジ締め込み方向（正面視時計回り、図２２では背面方向から見ているため反時計回り）に回動させると、押圧部２１５ｄが左側の支持リブ２２５ａの内周面と係合して係止受け部２２５を正面左方向に押圧する（図２２(ｂ)および図２３を参照）。これにより遊技盤２０が正面左方向に押圧され、上下のヒンジ溝１２１ｃ，１２２ｃが右端の円弧部でヒンジピン１１１ｃ，１１２ｃに当接されて位置決め支持される。このようにして遊技盤２０が前後左右に位置決めされ、ガタや振動を生じることなく確実に係止保持される。
【００８９】
なお、遊技盤２０の下方に位置する係止受け部２２５には、係止受け部２２５の前方を覆う係止受けカバー２２７が下レール飾り２３に横開き開閉可能に取り付けられており、常には閉鎖状態に保持されてガラス扉５の正面側から係止機構２００が視認されないようにするとともに、型式シールあるいは著作権シール等の貼り付け面を形成している。
【００９０】
さて、以上説明した開閉着脱機構１００および係止機構２００を利用して遊技盤２０を収容枠１０に装着固定する場合について、図２５を加えて各図を参照しながら説明する。なお図２５はガラス扉５を開放させた状態におけるパチンコ機ＰＭの平面図である。
【００９１】
遊技盤２０の装着に際しては、ガラス扉５を開放して枠側係止構造２１０の上下２カ所の固定レバー２１５を解放位置に設定しておき、遊技盤２０の左側縁を前方として前枠２の前面側から収容枠１０に斜めに挿入する。そして遊技盤２０の左前端の下部揺動ヒンジ部材１２２を下部固定ヒンジ部材１１２の配設位置に概略合わせて収容枠１０に一旦載置して支持させたうえ（図１１を参照）、化粧板２１の前面を押圧辺部１４４の先端部に係合させて、そのまま遊技盤２０を左斜め後方にスライド移動させる。
【００９２】
すると、側辺部１４３が左方にわずかに揺動変移して収容枠１０の左側面に当接し、押圧辺部１４４の先端位置を位置決めして化粧板２１の導入位置を規定し、上下のヒンジ溝１２１ｃ，１２２ｃを各々上下のヒンジピン１１１ｃ，１１２ｃに導いてこれらの係合を案内する。そして、ヒンジ溝に沿って遊技盤２０を基板部１４１と押圧辺部１４４との間に斜めに受容し、上下のヒンジピンとヒンジ溝とをヒンジ結合させる（図１２(ａ)を参照）。
【００９３】
ここで、上下の揺動ヒンジ部材１２１，１２２がそれぞれ収容部３１ｂ，３２ｂに収容されて遊技盤の外周方向に突出しないように配設されているため、遊技盤の取扱時に揺動ヒンジ部材を引っ掛けて周辺部材に損傷を与えたりたり、揺動ヒンジ部材を変形させてしまうようなことがない。また下部固定ヒンジ部材１１２が固定ヒンジ収容溝１２に収容されて周囲の枠面と平坦に配設されているため、遊技盤２０の装着時に引っかかりを生じることなく滑らかにヒンジ係合させることができる。さらに化粧板２０の裏面角部に逃げ面２１ｒが形成され、上レール飾り２２の前面角部にはテーパ面２２ｃが形成されているため、比較的大きな挿入角度で上下ヒンジ構造をヒンジ結合させることができる。
【００９４】
次いで、このようにヒンジ結合された遊技盤２０を揺動軸まわりに揺動させて収容枠１０内に閉止させる。遊技盤２０を閉止方向に揺動させる過程では、押圧辺部１４４による化粧板２１の押さえ位置が押圧辺部１４４の先端側から基端側に滑らかに変化する。一方、遊技盤２０の右側では化粧板２１の裏面が収容枠１０の内面と平行になる直前の揺動角度位置で化粧板２１の裏面が開放補助部材１５０の付勢片部１５４の先端部と滑らかに係合する。この接触状態から開放補助部材の弾性力に抗して遊技盤２０を後方に押圧すると、開放補助部材１５０が弾性変形して付勢片部１５４の先端側が後方に揺動変位し、化粧板２１の裏面が収容枠１０の内面と平行になる閉鎖角度位置では、付勢片部１５４が収容枠１０の内面と化粧板２１の裏面との間に挟持され収容保持される（図１４中の実線を参照）。
【００９５】
このとき、上下の係止機構２００では、閉鎖角度位置に至る過程で係止受容部２２１が固定支持部２１１を受容して収容枠内に進入し、支持リブ２２５ａの後端面が固定支持面２１１ｃに当接支持されるとともに、固定レバーのレバー部２１５ｃが係止開口２２５ｂを通って係止受け面２２５ｃの前方に突出する。
【００９６】
そこで、前方に突出したレバー部２１５ｃを摘んで時計回りに回動させる。すると固定レバー２１５が回動するとともに螺合に応じて後方に移動し、レバー部背面の係止面２１５ｒが係止受け面２２５ｃと滑らかに係合する。そして固定レバー２１５を解放位置から略９０度締め込んだとき（すなわちマーカ２１５ｍの付されたレバー部２１５ｃが正面右９０度の角度位置まで回動されたとき）に、係止面２１５ｒが係止受け面２２５ｃを後方に押圧してレバー部２１５ｃと固定支持面２１１ｃとの間に係止受け部２２５を挟み込むように挟持し、遊技盤２０を前後方向に位置決めして押圧固定する。
【００９７】
また回動軸部の左側に回動変位したレバー部２１５ｃの基部裏側に形成された押圧部２１５ｄが、上記締め込み過程において正面左側の支持リブ２２５ａの内周面と係合して遊技盤２０を左方に押圧し、遊技盤２０を左右方向に位置決めして押圧固定する。これにより、遊技盤２０がガタなく収容枠１０に位置決めされ固定保持される（図２４(ａ)→(ｂ)）。
【００９８】
一方、このように固定保持された遊技盤２０を取り外す際には、まず遊技盤２０を軽く後方に押さえながら上下の係止機構２００の固定レバー２１５を解放位置に（反時計回りに）回動させる。そしてして遊技盤２０を押さえていた支持力を緩めると、化粧板２１の裏面と収容枠１０の内面との間に挟持されていた付勢辺部１５４が、開放補助部材１５０に蓄えられていた弾性力により変形前の状態に自己復帰して化粧板２１の裏面を前方に押圧し、遊技盤２０を開放方向に揺動させる。このため、遊技盤２０の右辺側が収容枠１０からわずかに浮き上がり（図１４中の二点鎖線を参照）、指掛け可能に現れた開放操作部２２ｍを利用して遊技盤２０を容易に揺動開放させることができる。以降の脱着作業は原則的に上記装着作業と逆の作業を行えばよい。
【００９９】
なお、係止機構２００では、適切なピッチのネジを適切な角度位置に配設することで、上記のように固定レバー２１５を解放位置から９０度締め込んだときに係止受け部２２５が挟持固定されるように構成するとともに、このような標準固定位置で固定レバー２１５の後端面とレバー収容部２１１ａの底面との間に所定のクリアランスＣＡ（例えばネジ１ピッチ相当のクリアランス）が生じるように固定レバー２１５およびレバー収容部２１１ａを設定している。このため、例えば、使用されるレール飾りによって係止受け部２２５の厚さ寸法に差異やばらつきがあったり、化粧板２１に反りがあった場合、あるいは長期にわたる固定状態によって固定レバーに変形が生じた場合であっても、固定レバーの締め込み角度を調整することでこれらの誤差を吸収することができ、遊技盤２０を確実に固定保持できるようになっている。
【０１００】
例えば、係止受け部２２５の厚さが基準となる厚さよりも薄かった場合や、固定レバーのレバー部２１５ｃが摩耗または変形した場合には、図２４(ｃ)に示すように固定レバー２１５を標準的な右９０度の固定位置を超えて回動させることでレバー部２１５ｃを係合させて挟持固定することができる。逆に係止受け部２２５の厚さが基準となる厚さよりも厚かった場合や、化粧板に反りが生じていた場合には、図２４(ｄ)に示すように固定レバー２１５を標準的な右９０度の固定位置まで回動させない角度位置でレバー部２１５ｃを係合させて挟持固定することができる。
【０１０１】
なお、本実施形態では係止受け部２２５をレール飾りに形成し、この係止受け部２２５のみを挟持するように構成することで、化粧板２１に厚さのばらつきがあってもその影響を受けない構成としているが、例えば化粧板２１を含めて挟持させるような形態の場合には、化粧板２１の厚さのばらつきによる誤差を吸収して遊技盤２０を固定保持させることができる。また、固定レバー２１５の締め込みには、必要に応じて固定レバー前端の工具係合穴２１５ｓを利用して六角レンチ等の工具を用いて係止操作を行うこともでき、これによりさらに強固に固定保持させること、および固定レバー２１５を不正に開閉するような悪戯を抑制することが可能である。
【０１０２】
このように、係止機構２００によれば、係止受け部２２５の厚さのばらつきや各部材の誤差等によらず確実に遊技盤２０を係止固定できるとともに、遊技盤２０の状態が係止待機状態にあるか固定状態にあるかを固定レバー２１５の角度位置からも目視認識できる。しかしながら、着脱作業を急ぐあまり下方の係止機構を固定した段階で固定完了と誤認する場合も生じ得る。このため、本パチンコ機ＰＭにおいては、このような誤認によって遊技盤２０が未固定状態のまま遊技に供されることを未然に防止するため、固定忘れ防止機構２５０を設けている。以下、図２１および図２６〜図２８の各図を主として参照しながら固定忘れ防止機構２５０について説明する。
【０１０３】
ここで、図２６および図２７は係止機構２００と固定忘れ防止機構２５０との関係を示す平断面図であって、図２６は係止機構２００が未固定状態における平断面図、図２７は係止機構２００が固定状態における平断面図、図２８は固定忘れ防止機構２５０の作用を示す平面図である。
【０１０４】
各図には固定忘れ防止機構２５０における干渉部材として、干渉突起２５５をガラス扉５に設けた例を示している。干渉突起２５５は、ガラス扉５の裏面側に扉枠５１から後方に突出して設けられており、段付き円柱状の突起部がガラス扉５と一体に成型されている（図１、図２および図２５を併せて参照）。
【０１０５】
干渉突起２５５は、ガラス扉５を閉止させたときにガラス扉の背後に位置して対峙する係止機構２００の位置に合わせて設けられており、ガラス扉５が閉止方向に揺動されときに、解放位置から所定角度締め込まれた係止位置に位置する固定レバー２１５とは干渉しないが、解放位置に位置する固定レバー２１５のレバー部２１５ｃと干渉するように設定されている。すなわち干渉突起２５５は、固定レバー２１５における回動軸部２１５ａの上方または下方に突出するように設けられており、図示する固定忘れ防止機構２５０では回動軸部２１５ａの上方に突出するように配けた例を示している。
【０１０６】
このため、図２１および図２７に、係止機構２００における固定レバー２１５を右９０度の係止位置に位置させて、ガラス扉５を閉止させた状態を示すように、干渉突起２５５は固定レバー２１５と干渉することなく回動軸部２１５ａの上方に位置して収容され、ガラス扉５が完全に閉止施錠される。
【０１０７】
一方、固定レバー２１５が解放位置にあるときにはレバー部２１５ｃが回動軸部２１５ａの上下に位置しており、図２６に示すように、干渉突起２５５の先端部が固定レバーのレバー部２１５ｃと干渉してガラス扉５を閉止させることができない。このため、遊技盤２０の装着作業を行った作業者は、ガラス扉５が閉止できないことで遊技盤２０が完全には固定されていないことを直ちに理解できる。従って、遊技盤２０の固定忘れを未然に防止して遊技盤２０が不完全な固定状態で遊技に供されることを防止することができる。
【０１０８】
なお、本実施例では、ガラス扉５の背面に干渉突起２５５を設け、固定レバー２１５が解放位置にある状態でガラス扉５を閉止させようとしたときに、干渉突起２５５がレバー部２１５ｃと当接してガラス扉５が閉止できないように構成した例を示したが、下側の係止機構のように固定レバー２１５の前方に係止受けカバー２２７が設けられているような場合には、例えば、当該係止受けカバーのカバー面に干渉突起２５５が通過可能な突起挿通孔を設けることで上記実施例と同様に構成することができる。また、上記干渉突起２５５と同様の突起部を係止受けカバー２２７の背面に設け、固定レバー２１５が解放位置にある時には係止受けカバーの突起部が固定レバーのレバー部２１５ｃと当接して閉止されず、これに伴ってガラス扉５が閉止できないように構成してもよい。
【０１０９】
また、係止機構２００では、固定レバー２１５の前端部に六角形の工具係合穴２１５ｓを設け、六角レンチ等の工具を用いて開閉操作可能な形態を例示したが、図２４(ａ)(ｂ)と同様の係止機構の正面図を図２９(ａ)(ｂ)に示すように、この係合穴を施錠装置４の開錠時に用いる合い鍵で開閉操作可能な形態の鍵係合穴２１５ｔとしてもよい。これにより、遊技盤２０の着脱時に別途工具を準備することなく通常使用する合い鍵を用いて作業を行えるとともに、合い鍵を持たない無権限者による不正操作を有効に防止することができる。
【０１１０】
さらに、実施例では固定支持部２１１に雄ネジ部（ボルト２１３）を設け、固定レバー２１５に雌ネジ部２１５ｂを設けて螺合させる形態を示したが、固定支持部２１１と固定レバー２１５のネジによる螺合形態は雌雄を逆転させた形態であってもよい。すなわち、固定支持部２１１の後部に雌ネジ部を形成し、固定レバー２１５の後端に後方に突出する雄ネジ部を設けてこれらを螺合させる形態としてもよい。この場合、固定レバー２１５に雄ネジ部を設ける手段として、例えば、固定レバーのネジ部２１５ｂにスタッドボルトを植設する構成や、上述したと同様のボルト支持部（２１２）を固定レバーに設けて圧入固定する構成、雄ネジ部が形成された金属部材を固定レバーにインサートモールドあるいは圧入して一体に形成する構成など適宜な手段を用いることができる。
【０１１１】
ところで、以上では収容枠の枠部内方に突出して遊技盤２０の前面と係合し、遊技盤２０を後方に押圧する押さえ部材１４０について、遊技盤装着時に遊技盤２０を案内するとともに、遊技盤２０を後方に押圧してガタなく収容枠１０に位置決め保持させる基本的機能を説明した。しかし、押さえ部材１４０にはさらに付加的な機能を持たせてあり、以下この機能について説明する。なお、押さえ部材の作用を示す図１２を適宜参照されたい。
【０１１２】
まず、本実施例の各図に示した開放補助部材１４０では、遊技盤２０を収容枠１０に左斜め前方に挿入して上下のヒンジ構造を係合させたときに、押圧辺部１４４の前端部が当接する化粧板の前面位置すなわち後方への押圧力の作用点は、上下のヒンジピンによって形成される揺動軸から化粧板２１の前面に立てた垂線よりも右側に位置するように設定している。このことは、係合初期段階における回転モーメントは遊技盤２０を閉止させる方向に作用することを意味する。
【０１１３】
一方、上下ヒンジ構造のヒンジ結合後、遊技盤２０を閉止方向に揺動させると、上記押圧力の作用点は押圧辺部１４４の基端側に移動し、閉止位置では化粧板２１の左端近傍を後方に押圧する。このことは、揺動閉止過程において遊技盤２０に作用する回転モーメントが閉止方向から開放方向へと変化していることを意味し、閉鎖角度位置では、力としては遊技盤２０を後方に押圧して位置決め保持させるが、揺動軸を中心とする回転モーメントとしては開放方向に作用することを意味する。
【０１１４】
このため、例示した押さえ部材１４０では、遊技盤２０の角度位置に応じて、開き角の大きい角度位置では遊技盤２０を閉止方向に付勢する閉止補助部材として機能し、閉鎖角度に近い角度位置では上述した開放補助部材１５０と同様に開放方向に付勢する開放補助部材として機能する。これにより着脱作業の操作性を向上させて作業性が良好な固定装置を構成している。
【０１１５】
なお、押圧辺部１４４の形状および遊技盤前面の押圧位置を適宜に設定することによって、上記と異なる機能を持たせることも自在である。例えば、側辺部１４３に対する押圧辺部１４４の屈折角を鋭角に形成し、あるいは押圧辺部１４４の先端に後方に凸の円弧状の突部を形成して、上記押圧力の作用点が遊技盤２０の開閉角度位置に拘わらず揺動軸から立てた垂線よりも常に右側に位置するように設定することで、回転モーメントを常時閉止方向に作用させて閉止補助部材として機能させることができる。また例えば、押圧辺部１４４の長さを短く形成すること等により、押圧力の作用点が上記垂線よりも常に左側に作用するように構成することもでき、これにより開放補助部材として機能させることができる。
【０１１６】
【発明の効果】
以上説明したように、本発明では、前面に遊技領域が設けられた遊技盤と、遊技盤を所定位置で着脱可能に収容する収容部が設けられた枠部材とを備え、遊技領域に遊技球を打ち出して遊技を行うように構成された弾球遊技機において、枠部材に配設された固定ヒンジ部材と、遊技盤の一側に配設されて固定ヒンジ部材と係脱および係合状態で水平方向に相対揺動が可能な揺動ヒンジ部材と、枠部材内方に突出して配設され、遊技盤を枠部材に導入する際に遊技盤をガイドするとともに、遊技盤を枠部材に収容した状態では遊技盤の前面側に当接して遊技盤を後面側に付勢する押さえ部材を備える。
さらに、枠部材と遊技盤の他側に備えられ、遊技盤が閉鎖角度位置に閉止して枠部材に収容されたときにこの遊技盤を係止して固定保持する係止機構を備え、係止機構は、遊技盤を枠部材の一側方に付勢する遊技盤左右方向付勢手段を有し、揺動ヒンジ部材が固定ヒンジ部材に係合され遊技盤が枠部材に収容されたときに、押さえ部材が遊技盤の前面に当接し遊技盤を後方に付勢して遊技盤の前後方向の位置決め保持をするとともに、係止機構が遊技盤を係止固定するときに、遊技盤左右方向付勢手段が遊技盤を一側方に付勢して前記遊技盤の左右方向の位置決め保持をするように構成される。これにより、ガタや振動を生じることなく確実に係止保持される。
【０１１７】
このような構成の開閉着脱機構では、遊技盤の装着作業においては、揺動ヒンジ部材を固定ヒンジ部材に係合させることに注目して作業を行えばよく、あとは開閉着脱機構に支持された遊技盤を閉止するだけで遊技盤が係止待機状態に配設され、固定部材を係止操作することで遊技盤が所定位置に係止保持される。また遊技盤を取り外す脱着作業では、固定部材を解放操作して係止機構による係止を解除し開閉着脱機構に支持された遊技盤を閉止位置から揺動開放し、遊技盤の下縁を支持しやすい状態にして遊技盤を取り外すことができる。従って比較的重量のある遊技盤の全重量を支持しながら微妙な位置合わせを行う必要がなく、遊技盤の着脱作業を容易化することができる。
【０１１８】
また、本構成の開閉着脱機構では、揺動ヒンジ部材が固定ヒンジ部材に係合されたときに遊技盤の前面と係合して遊技盤を後方に付勢する押さえ部材が備えられているため、ヒンジ係合させた後は軽い操作力で遊技盤を装着することができる。また、押さえ部材の付勢力によって遊技盤が付勢支持されるため、固定ヒンジ部材と揺動ヒンジ部材との係合部分に多少大きめのクリアランスを設定してもガタ等を生じることがなく、不快な振動や騒音を低減して遊技性を向上させるとともに長期信頼性が高い開閉着脱機構を提供することができる。
【図面の簡単な説明】
【図１】本発明に係る固定装置を備えた遊技機の一例として示すパチンコ機のガラス扉を開放した状態における正面図である。
【図２】ガラス扉および遊技盤を取り外した状態における上記パチンコ機の正面図（ガラス扉については背面図）である。
【図３】開閉着脱機構を分離させた状態における上部ヒンジ構造の斜視図である。
【図４】開閉着脱機構を分離させた状態における下部ヒンジ構造の斜視図である。
【図５】遊技盤を閉止させた状態における上部ヒンジ構造の正面図である。
【図６】遊技盤を閉止させた状態における下部ヒンジ構造の正面図である。
【図７】遊技盤を閉止させた状態における上部ヒンジ構造の平面図（部分平断面図）である。
【図８】遊技盤を閉止させた状態における下部ヒンジ構造の平面図（部分平断面図）である。
【図９】押さえ部材および取り付け周辺部の斜視図である。
【図１０】固定ヒンジ部材、揺動ヒンジ部材および押さえ部材の他の構成例を示す斜視図である。
【図１１】遊技盤着脱時における下部ヒンジ構造の平面図である。
【図１２】遊技盤を着脱する際の押さえ部材の作用を示す平断面図である。
【図１３】開放補助部材およびその取り付け周辺部を示す斜視図である。
【図１４】遊技盤を開閉する際の開放補助部材の作用を示す平断面図である。
【図１５】本発明に係る固定装置における係止機構の主要構成を分解状態で示す斜視図である。
【図１６】係止機構を構成する各部材の組み付け関係を分解状態で示す平断面図である。
【図１７】係止機構における枠側係止構造の係止部と盤側係止構造の係止受け部との関係を示す平断面図（部分断面図）である。
【図１８】係止機構を構成する主要部材の単体正面図である。
【図１９】枠側係止構造と盤側係止構造とを分離状態で示す正面図である。
【図２０】遊技盤を着脱する際の枠側係止構造と盤側係止構造との関係を示す側断面図である。
【図２１】係止機構による遊技盤の固定状態を示す側断面図である。
【図２２】図２１中の矢印F22−F22方向に見た背面図であって、このうち(ａ)図は係止待機状態における背面図、(ｂ)図は係止状態における背面図である。
【図２３】係止状態における係止機構の平断面図である。
【図２４】係止機構の許容度を説明するための正面図である。
【図２５】ガラス扉を開放させた状態におけるパチンコ機の平面図である。
【図２６】未固定状態における係止機構と固定忘れ防止機構との関係を示す平断面図である。
【図２７】固定状態における係止機構と固定忘れ防止機構との関係を示す平断面図である。
【図２８】固定忘れ防止機構の作用を示す平面図である。
【図２９】固定レバー前端に鍵係合穴を設けた実施例を示す正面図である。
【符号の説明】
ＣＡクリアランス
ＦＳ遊技盤固定装置
ＰＡ遊技領域
ＰＭパチンコ機
Ｈ係止受け部の厚さ寸法
Ｗヒンジ溝入口の開口寸法
１外枠
２前枠
３ａ，３ｂヒンジ機構
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収容枠
１２固定ヒンジ収容溝（１２ｈネジ受容溝）
２０遊技盤
２１化粧板（２１ｒ逃げ面）
２２上レール飾り（２２ｃテーパ面、２２ｍ開放操作部）
２３下レール飾り
２４入賞具
２５図柄表示装置
２７アウト口
３０裏セット盤
３１ａ固定収容部
３１ｂ切り欠き部
３２ａ固定収容部
３２ｂ切り欠き部
３３押さえ部材取付部（３３ａ基板収容部、３３ｂアーチ収容溝）
３４押さえ部材受容部
３５補助部材取付部（３５ａ基板取着面、３５ｂネジボス）
３６補助部材受容部
５１扉枠
５２ガラスアッセンブリ
５３ａ，５３ｂヒンジ機構
５４ガラス施錠機構
１００開閉着脱機構
１０１上部ヒンジ構造
１０２下部ヒンジ構造
１１１上部固定ヒンジ部材
（１１１ａ固定部、１１１ｂ支持板部、１１１ｃヒンジピン、
１１１ｈネジ挿通孔）
１１２下部固定ヒンジ部材
（１１２ａ固定部、１１２ｂ支持板部、１１２ｃヒンジピン、
１１２ｈネジ挿通孔）
１１５固定ヒンジ部材
（１１５ａ固定部、１１５ｂ支持板部、１１５ｃ,１１５ｃ′ ヒンジピン、
１１５ｈネジ挿通孔）
１２１上部揺動ヒンジ部材
（１２１ａ固定部、１２１ｂヒンジプレート、１２１ｃヒンジ溝、
１２１ｈネジ挿通孔）
１２２下部揺動ヒンジ部材
（１２２ａ固定部、１２２ｂヒンジプレート、１２２ｃヒンジ溝、
１２２ｈネジ挿通孔）
１２５揺動ヒンジ部材
（１２５ａ固定部、１２５ｂヒンジプレート、１２５ｃヒンジ溝）
１４０押さえ部材
１４１基板部
（１４１ｈネジ挿通孔、１４１ｐピン係合孔）
１４２アーチ部
１４３側辺部
１４４押圧辺部
１４５押さえ部
１４８押圧辺部（１４８ｈ工具挿通孔）
１５０開放補助部材
１５１基板部（１５１ｈネジ挿通孔）
１５２アーチ部
１５３側辺部
１５４付勢片部
１５６ナベ小ネジ
２１０枠側係止構造
２１１固定支持部
（２１１ａレバー収容部、２１１ｃ固定支持面、２１１ｐガイドピン）
２１２ボルト支持部
（２１２ａ支軸孔、２１２ｃ頭部収容穴）
２１３ボルト
（２１３ａ軸部、２１３ｂネジ部、２１３ｃボルト頭部）
２１５固定レバー
（２１５ａ回動軸部、２１５ｂ雌ネジ部、２１５ｃレバー部、
２１５ｄ押圧部、２１５ｍマーカ、２１５ｒ係止面、
２１５ｓ工具係合穴、２１５ｔ鍵係合穴）
２２０盤側係止構造
２２１係止受容部
２２５係止受け部
（２２５ａ支持リブ、２２５ｂ係止開口、２２５ｃ係止受け面）
２２７係止受けカバー
２５０固定忘れ防止機構
２５５干渉突起[0001]
BACKGROUND OF THE INVENTION
The present invention includes a game board having a game area provided on the front surface and a frame member that detachably accommodates the game board, and is configured to launch a game ball in the game area to play a game. More particularly, the present invention relates to an opening / closing mechanism for a game board that supports the game board in a predetermined position on the frame member so that the game board can be opened and closed.
[0002]
[Prior art]
As a ball ball game machine including the game board and the frame member as described above, a pachinko machine, an arrangement ball machine, a sparrow ball game machine, and the like are generally known. As an example of this type of gaming machine, a pachinko machine will be described as an example. In the pachinko machine, a front frame that is an open / close mounting frame is hinged to a laterally open / closed frame and hinged so that it can be opened / closed horizontally. A game board in which a game area is formed by gauge setting is assembled in a standing posture. In front of the game board, a glass door is attached to the front frame so that it can be opened and closed sideways, and always covers and closes the front of the game board so that the game area can be seen through. A game ball launching device and an operation handle are provided at the lower part of the front frame so that the game ball can be launched at a desired position in the game area, and the process of the game ball launched into the game area falling and moving in the game area The game is operated by operating the operation handle so as to win a prize tool.
[0003]
In a pachinko machine with such a configuration, the game board is designed to ensure flexibility in production support for changing the model of the pachinko machine, and to be able to respond quickly to so-called board change and game board maintenance and replacement. The main shape and dimensions of the board are standardized. Generally, the front frame is detachably accommodated in an accommodation frame formed in a frame shape somewhat larger than the outer shape of the game board, and is provided in the accommodation frame. The locking mechanism is fixed and held at a predetermined position of the front frame. As the storage form of the game board, there are a game board rear attachment / detachment form in which the game board is attached to and detached from the storage frame from the rear side of the front frame, and a game board front attachment / detachment form in which the game board is attached to and detached from the front frame from the front side. It has been put into practical use. On the other hand, the locking mechanism is required as a basic function to firmly fix and hold the game board accommodated in the accommodation frame, but is also required to be easy and quick to attach and detach. For this reason, in recent years, a so-called lever rotation device in which the game board is fixedly held at a predetermined position of the front frame when the game board is stored in the storage frame and the operation lever is rotated to a fixed angle position. A dynamic fixing device (locking device) has been devised (see Patent Document 1).
[0004]
For example, the locking device described in Patent Document 1 can be attached to and detached from a holding portion provided at a predetermined position of a storage frame (set holding frame) in the pachinko machine in the above-described game board front mounting / dismounting form. And a locking tool that is rotatably set and is supported, and these are provided at a plurality of locations such as the four corner positions of the housing frame. The locking tool has a rotating base supported by a holding part on the housing frame side behind the shaft part extending in the front-rear direction, and an operation part and an engaging part that can be operated with the fingertips are integrally formed on the front side of the shaft part. When the locking device that is fitted and supported by the holding portion so as to be rotatable is rotated 180 degrees, the engaging portion that is in an eccentric position from the shaft portion rotates and moves to the front side of the game board. The game board is engaged with a board-side engagement receiving part, and the game board is sandwiched and held between the engagement part and the holding part.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-288215
[Problems to be solved by the invention]
By the way, the game board is a place where a game is developed for a pachinko machine, and an elaborate configuration is required so as to attract the player and not get bored. Therefore, in recent years, liquid crystal display devices have been adopted in order to diversify game development, and the size has increased year by year, and image display substrates have increased in size with the advancement of screen display, or winning devices and lamp devices. As game components become more complex, various game components assembled on the game board are becoming more sophisticated and complex, and the overall weight of the game board is constantly increasing. There is also a tendency to increase the external dimensions of the game board itself.
[0007]
For this reason, the mounting operation of the game board is to support the game board with one hand in a state where the large and heavy game board is supported and accommodated in the accommodation frame, and each part of the locking mechanism is aligned and engaged. However, there is a problem that the locking mechanism has to be fixedly operated, which is troublesome and labor-intensive for skilled workers. In addition, the detaching operation for removing the game board is performed by pulling the game board out of the storage frame with the locking mechanism in the released state. At this time, the game board is removed using a slight gap between the storage frame and the game board. It is necessary to pull out, and the total weight of the game board acts suddenly when the locking mechanism is opened or pulled out of the storage frame. There was a problem that there is a risk of dropping.
[0008]
The present invention has been made in view of such problems and problems, and an object thereof is to provide an attaching / detaching mechanism that can facilitate the attaching / detaching operation of the game board.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a gaming board attaching / detaching mechanism according to the present invention includes a gaming board having a gaming area provided on the front surface, and a frame member provided with an accommodating portion for detachably accommodating the gaming board at a predetermined position. In a bullet ball game machine configured to launch a game ball in a game area to play a game, a fixed hinge member having a hinge pin that is disposed on one side of the frame member when viewed from the front and left and right , and extends vertically, and a game board one of left and right are disposed on the side of having a hinge pin engageable with a hinge groove extending in the horizontal direction larger groove width than the diameter of the hinge pin, relative to the hinge groove is engaged with the frame member to the hinge pin A swing hinge member that swingably supports the game board, and is arranged to protrude inward of the frame member on one of the left and right sides of the frame member. When the game board is accommodated in the frame member, the front side of the game board is contacted. contact, the game board with guiding the game board Comprising a pressing member for pressing the rear side, provided on the other of the left and right sides of the front view the other of the left and right sides and the game board of the frame member, engaging the game board located in the closed angular position in a state of being pressed by the pressing member to the frame member The locking mechanism further includes a locking mechanism for stopping and fixing, and the locking mechanism has a game board horizontal direction pressing means for pressing the game board to the left or right side, and the hinge groove is engaged with the hinge pin so that the game board is framed. When the game board is fixed and held by the locking mechanism, the hinge groove of the swinging hinge member pressed to the rear side by the pressing member is pressed against the hinge pin to restrict the back and forth movement. The game board is accommodated at the same time, and the game board is accommodated in a state where the hinge groove portion of the swing hinge member pressed to the left and right sides by the game board left and right direction pressing means is pressed against the hinge pin and the movement to the left and right is restricted. Configured.
[0010]
In the opening / closing mechanism with such a configuration, the fixed hinge member disposed on the frame member and the swing member disposed on one side of the game board and capable of relative swinging in a disengaged and engaged state with the fixed hinge member. With the moving hinge member, the game board is accommodated in the accommodating portion so as to be detachable and openable. For this reason, in the mounting operation for mounting the game board, it is only necessary to pay attention to engaging the swing hinge member with the fixed hinge member, and then the game board supported by these hinge mechanisms is closed. Thus, the game board is disposed at a predetermined position. Further, in the detaching operation for removing the game board, the game board supported by the hinge mechanism can be released from the closed position, and the game board can be removed in a state where the lower edge of the game board can be easily supported.
Further, in the opening / closing mechanism of the present configuration, the game board is disposed so as to protrude inward of the frame member, guides the game board when the game board is introduced into the frame member, and the game board is stored in the frame member. There is provided a holding member that abuts the front side of the game board and biases the game board to the rear side. Therefore, in a state where the swing hinge member is engaged and supported by the fixed hinge member and the game board is accommodated in the frame member, the game board comes into contact with the pressing member and is urged rearward, thereby swinging and closing the game board. A game board is disposed at a predetermined position. Therefore, according to such a game board opening / closing mechanism, the game board can be mounted with a light operating force. In addition, since the game board is urged and supported by the urging force of the pressing member, even if a slightly larger clearance is set at the engagement portion between the fixed hinge member and the swinging hinge member, there is no backlash and the like. In addition, it is possible to provide an open / close attachment / detachment mechanism that reduces game vibrations and noises and improves game playability and has high long-term reliability.
Further, when the swing hinge member is engaged with the fixed hinge member and the game board is accommodated in the frame member, the pressing member abuts against the front surface of the game board and urges the game board backward to When the locking mechanism locks and fixes the game board, the game board left-right direction biasing means biases the game board to one side of the frame member and holds the game board in the left-right direction. The positioning is held securely, and it is securely held without any play or vibration.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings by way of preferred examples. In the embodiment, a case will be mainly described in which the present invention is applied to a pachinko machine in which a game board is accommodated and held in the front back part of the front frame.
[0013]
First, a schematic configuration of the pachinko machine PM will be briefly described with reference to FIG. 1 and FIG.
Here, FIG. 1 is a front view of the pachinko machine PM in a state where the glass door 5 of the pachinko machine PM is opened, and FIG. 2 is a front view of the pachinko machine PM in a state where the glass door 5 and the game board 20 are removed (the glass door 5 Is a rear view).
[0014]
The pachinko machine PM is configured in an outer rectangular frame size and is formed in the front of the opening of the outer frame 1 that forms a vertically fixed holding frame, and the front frame 2 for opening and closing is configured in a rectangular frame size corresponding to this. The hinge mechanisms 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 always engage with the outer frame 1 using a locking device 4 called a double lock provided on the right side of the front. Kept in a combined closed state.
[0015]
On the front side of the front frame 2, a rectangular glass door 5 and a ball tray 6 matched to the front area of the front frame 2 can be opened / closed and attached / removed horizontally by hinge mechanisms 7 a, 7 b, 7 c provided on the left side of the front side. It is hold | maintained at the closed state which covers the front surface of the front frame 2 using the locking device 4 and the ball tray locking device provided in the front right side. An operation handle 8 for performing a game ball launching operation is attached to the lower right side of the ball tray 6. A rectangular frame-shaped storage frame 10 is formed integrally with the front frame 2 at the upper part of the front frame 2, and the game board 20 is detachably installed on the storage frame 10 by using the game board fixing device FS. Is done.
[0016]
The game board 20 is configured with a decorative board (also referred to as “veneer”) 21 in which cells are attached to the surface of a laminated plywood having a predetermined board thickness and this is router processed into a predetermined shape as a substrate. On the front side of the decorative plate 21, the upper and lower divided rail decorations 22 and 23 are screwed, and a substantially circular game area PA is defined on the inner side thereof. A large number of game nails and a windmill or the like are placed in the game area PA. Game components such as various winning devices 24 and a symbol display device 25 that displays a predetermined symbol according to the progress of the game are attached, and a game that has fallen without winning the winning device 24 at the lower end of the game area PA. An out port 27 for discharging the ball to the back side of the game board 20 is provided.
[0017]
The glass door 5 that always covers and holds the front surface of the game board 20 is closed, and the front and rear glass plates are integrally formed on the back side of the resin-molded door frame 51 having a window opening communicating with the front and rear. The assembled glass assembly 52 is attached by hinge mechanisms 53a and 53b so as to be opened and closed laterally and detachable, and is held by a glass locking device 54 at a closed position covering the window opening of the glass door 5. In addition, an auxiliary mechanism portion called a game assisting board is formed in a lower area of the front frame 2 located behind the ball tray 6, and the operation handle 8 can be turned on each part of the game assisting board. Based on this, a game ball launching device that launches game balls onto the game board 20, an acoustic device that generates sound effects according to the state of game development, and the like are provided.
[0018]
On the back side of the front frame 2, a back set board 30 having an opening communicating in the front-rear direction and formed in a rectangular frame shape slightly smaller than the front frame 2 is detachably set and held. Although not shown in detail in each part of the back set board 30, the game storage is based on the ball storage tank that stores the game balls, the alignment passage that aligns the game balls supplied from the ball storage tank, the winning state in the game board 20, etc. A prize payout mechanism such as a ball payout device for paying out a ball and a ball payout passage for guiding a game ball paid out from the ball payout device to the ball tray 6 is provided, and a game ball discharged to the back side of the game board 20 is provided. A discharge passage or the like for collecting and discharging to a collection bucket of the gaming facility is provided. In addition, various circuit boards such as a power supply board and a main board, electronic parts, and the like are attached to the back side of the back set board 30, and these are connected by a wire harness so as to be playable.
[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 sent one by one to the game ball launching device, and are launched into the game area PA of the game board 20 by the hammer of the game ball launching device. After that, the pachinko game is developed.
[0020]
In the pachinko machine PM schematically configured as described above, the game board 20 is detachably accommodated in the accommodation frame 10 from the front of the front frame 2, and a predetermined inside of the accommodation frame 10 is obtained using the game board fixing device FS. Held fixed in position.
[0021]
The game board fixing device FS is configured mainly by an opening / closing attachment / detachment mechanism 100 provided on the front left and upper sides of the storage frame 10 and the game board 20 and a locking mechanism 200 provided on the upper right and lower sides of the front of each other. In the example, a forgetting prevention mechanism 250 for preventing the locking mechanism 200 from forgetting to fix the game board 20 is shown. In the game board fixing device FS, the game board 20 is swingably opened / closed and attached / detached by the opening / closing attachment / detachment mechanism 100, and fixed and held at a predetermined position of the storage frame 10 by the locking mechanism 200. Further, the forgetting fixing prevention mechanism 250 is a mechanism that, when the locking mechanism 200 is in an unfixed state (locking standby state), makes this state clear and prevents the game board 20 from being forgotten to be fixed. Hereinafter, the configuration of the opening / closing attachment / detachment mechanism 100 will be described in detail sequentially with reference mainly to FIGS. 3 to 8.
[0022]
3 to 8 will be briefly described in advance. FIGS. 3 and 4 are perspective views of the upper hinge structure 101 and the lower hinge structure 102 in a state in which the opening / closing mechanism 100 is separated, respectively. 6 is a front view of the upper and lower hinge structures 101 and 102 when the game board 20 is closed, and FIGS. 7 and 8 are plan views of the upper and lower hinge structures 101 and 102 when the game board 20 is closed. (Partial cross-sectional view).
[0023]
The opening / closing mechanism 100 is engaged and disengaged with a pair of upper and lower fixed hinge members 111 and 112 disposed inside the housing frame 10 and an upper and lower fixed hinge member disposed on the outer periphery of the game board 20. And a pair of upper and lower swing hinge members 121 and 122 capable of relative swing in a state, and the upper and lower swing hinge members 121 and 122 on the game board side are fixed to the upper and lower fixed hinge members 111 and By engaging with 112, the game board 20 is supported by the storage frame 10 so as to be swingable and openable.
[0024]
When the opening / closing mechanism 100 is functionally classified, the upper fixed hinge member 111 and the upper swing hinge member 121 constitute the upper hinge structure 101, and the lower fixed hinge member 112 and the lower swing hinge member 122 represent the lower hinge structure 102. The game board 20 is supported by the housing frame 10 so as to be attachable / detachable and swingable by the pair of upper and lower hinge structures 101, 102.
[0025]
The upper fixed hinge member 111 is a plate-like body having an L shape in side view as a whole, and a fixed portion 111a fixed to the front surface of the housing frame 10 and an upper portion of the fixed portion 111a are bent at a right angle and protrude forward. The support plate portion 111b, the cylindrical hinge pin 111c protruding downward and fixed to the lower surface of the support plate portion, and the screw insertion holes 111h in the form of salamomi holes formed in the fixing portion 111a are mainly configured. The upper fixed hinge member 111 is formed by punching and press-molding a steel plate having a predetermined thickness to form an L-shaped angle, and then crimping or riveting the hinge pin 111c to the support plate portion 111b.
[0026]
A screw receiving hole that is aligned with the screw insertion hole 111h is formed in the upper left part of the inside of the housing frame 10 in accordance with the position of the upper fixed hinge member 111, and a small screw is inserted into the screw insertion hole 111h. Thus, the upper fixing hinge member 111 is fixed to a predetermined position above the housing frame 10 by screwing and fastening into the screw receiving hole.
[0027]
The lower fixed hinge member 112 as a whole has a crank-like plate shape in side view, and the support plate portion 112b supported by the receiving frame 10 and the front and rear of the support plate portion are bent upward and downward at right angles, respectively. The upper and lower fixing parts 112a, the cylindrical hinge pin 112c protruding upward and fixed on the upper surface of the support plate part 112b, and the screw insertion holes 112h in the form of salamomi holes formed in the upper and lower fixing parts 112a are mainly fixed. It is formed by processing and molding a plate material similar to the hinge member 111 by the same processing means.
[0028]
A fixed hinge receiving groove 12 is provided on the inner left lower portion of the receiving frame 10 in accordance with the position where the lower fixed hinge member 112 is disposed, and a screw that aligns with the screw insertion hole 111h on the front and rear standing surfaces of the receiving groove. A receiving hole 12h is formed. The fixed hinge accommodating groove 12 is formed in a concave shape in accordance with the shape and thickness of the lower fixed hinge member 112. When the lower fixed hinge member 112 is accommodated in the accommodating groove 12, the front surface of the fixed portion 112a and The upper surface of the support plate portion 112b is disposed on the same surface as the inner surface of the housing frame 10, and the lower fixed hinge member 112 is disposed flat so as not to protrude from the surrounding frame surface. In the state where the lower fixed hinge member 112 is accommodated in the fixed hinge accommodating groove 12, the lower fixed hinge member 112 is tightened in the screw receiving groove 12h by inserting a small screw into the front and rear screw insertion holes 112h. It is fixed with screws.
[0029]
When the upper and lower fixed hinge members 111 and 112 are attached to the housing frame 10 in this way, the upper and lower support plate portions 111b and 112b are arranged in parallel vertically at a predetermined interval, and the hinge pins projecting from these support plate portions. 111c and 112c are arranged on the same axis so as to face each other. Further, the lower fixed hinge member 112 is received and fixed in the fixed hinge receiving groove 12, and only the hinge pin 112c protrudes upward from the surrounding frame surface.
[0030]
The upper and lower swinging hinge members 121 and 122 are both L-shaped plate-like bodies when viewed from the side, and are symmetrical with respect to a plane upright in the direction perpendicular to the game board between the vertical swinging hinge members (mirror image). Formed. Therefore, first, the lower swing hinge member 122 whose whole shape is explicitly shown in FIG. 4 will be described. The lower swing hinge member 122 includes a fixing portion 122a fixed to the back surface of the decorative plate 21, and the fixing portion 122a. The hinge plate 122b is bent at a right angle to protrude forward, the hinge plate 122b is formed extending in the left-right direction on the hinge plate 122b, and the screw insertion hole is formed in the fixing portion 122a from the back side. 122h and the like, and is formed by processing and molding the same plate material as the upper and lower fixed hinge members 111 and 112 by the same processing means.
[0031]
The lower swing hinge member 122 is formed so as not to protrude from front to back and right and left from the plan view decorative plate 21 in an attached state in which the lower swing hinge member is screwed to the decorative plate 21. Specifically, the outer dimension in the front-rear direction of the lower swing hinge member 122 is formed to be the same as or slightly smaller than the thickness of the decorative plate 21, and the decorative plate is formed at the corner of the rear end of the lower swing hinge member 122. An arc-shaped escape portion 122r similar to that of the decorative plate 21 is formed so that the lower swing hinge member 122 does not protrude from the decorative plate 21 in an attached state in which the lower swing hinge member 122 is attached to the left end corner of the decorative plate 21.
[0032]
The hinge groove 122c has a U-shaped groove with the left end open in plan view, and the right groove end is formed in an arc shape having the same radius as the outer diameter of the hinge pin 112c. The hinge groove 122c has a front groove surface formed in parallel with the front surface of the decorative plate 21, and a rear groove surface extending obliquely rearward. FIG. 11 is a plan view of the lower hinge structure 102. Thus, the groove width W of the opening at the left end is larger than the diameter of the hinge pin 112c.
[0033]
On the other hand, at the lower left corner of the game board 20, a fixed housing portion 32 a for housing the fixed portion 122 a of the lower swing hinge member is formed on the back surface side of the game board 20, and the lower swing is provided at the outer periphery of the lower end of the game board 20. A notch 32b for receiving the hinge plate 122b of the hinge member is formed.
[0034]
The fixed accommodating portion 32a is formed by performing a router process on the back surface of the decorative plate 21 in accordance with the shape of the fixed portion 122a at a cutting depth that is the same as or slightly larger than the plate thickness of the lower swing hinge member 122. When the fixed portion 122a is screwed to the fixed accommodating portion 32b, the fixed portion 122a is accommodated so that the lower swing hinge member 122 does not protrude rearward from the back surface of the decorative plate 21. In addition, by providing the fixing portion 122a on the back surface side of the decorative board 21 and screwing in the direction orthogonal to the board surface, the screw in the direction orthogonal to the lamination direction of the laminated plywood is obtained without impairing the aesthetic appearance of the game board 20. Can be firmly fixed to the lower swinging hinge member 122.
[0035]
The notch 32b is formed by cutting the outer periphery of the lower end of the decorative board 21 with a cutting depth somewhat larger than the protruding height of the hinge pin 112c in the lower fixed hinge member 112, and the lower swing hinge member 122. When the frame is attached, the hinge plate 122b is accommodated in the notch so that the lower swing hinge member 122 does not protrude in the outer peripheral direction of the decorative plate 21.
[0036]
The lower swinging hinge member 122 is disposed so that the left end corner of the hinge plate 122b is aligned with the intersection of the lower surface and the left side of the decorative board 21 (intersection of the outline outline of the game board), and from the back side of the fixed portion 122a. The countersunk screw 123 is screwed into the fixed housing portion 32a through the screw insertion hole 122h, thereby being fixed to the lower left corner of the game board 20. When the lower swinging hinge member 122 is attached in this way, the fixed portion 122a of the lower swinging hinge member 122 is received in the fixed receiving portion 32a, and the hinge plate 122b is received in the cutout portion 32b. The hinge member 122 is fixedly disposed so as not to protrude in the front-rear direction and the outer peripheral direction of the game board 20 (outside the outline outline of the game board). Further, a pin accommodating space capable of receiving the head of the hinge pin 112c is formed between the upper surface of the hinge plate 122b and the downward surface of the notch 32b.
[0037]
The upper swinging hinge member 121 is formed by a fixing portion 121a fixed to the back surface of the decorative plate 21, a hinge plate 121b that protrudes forward by folding the upper portion of the fixing portion 121a at a right angle, and a hinge plate 121b extending in the left-right direction. The hinge groove 121c is formed, and a screw insertion hole 121h in the form of a salamomi hole formed in the fixing portion from the back surface side, etc., and as described above, is configured symmetrically with the lower swing hinge member 122 in the vertical direction. Therefore, in the following, the upper swing hinge member 121 and its mounting portion will be briefly described in a definite manner.
[0038]
Similar to the lower swing hinge member 122, the upper swing hinge member 121 does not protrude from front, rear, left and right from the decorative plate 21 in a mounted state in which the upper swing hinge member is screwed to the decorative plate 21. Is formed. That is, the outer dimension in the front-rear direction of the upper swing hinge member 121 is formed to be the same as or slightly smaller than the plate thickness of the decorative plate 21, and is similar to the decorative plate 21 at the rear end corner of the upper swing hinge member 121. The arc-shaped relief portion 121r is formed so as not to protrude from the decorative plate 21 in the attached state in which the upper swing hinge member 121 is attached. The hinge groove 121c is formed in the same manner as the hinge groove 122c described above.
[0039]
In the upper left corner of the game board 20, a fixed housing part 31 a for housing the fixed part 121 a of the upper swing hinge member is formed on the back side of the game board 20, and the upper swing hinge member is formed on the upper outer periphery of the game board 20. A notch 31b for receiving the hinge plate 121b is formed. The fixed accommodating portion 31a is formed by performing a router process on the back surface of the decorative plate 21 in accordance with the shape of the fixed portion 121a at a cutting depth that is the same as or slightly larger than the plate thickness of the upper swing hinge member 121. When the fixed portion 121a is fixed to the fixed accommodating portion 31b with screws, the fixed portion 121a is accommodated so that the upper swing hinge member 121 does not protrude rearward from the back surface of the decorative plate 21. In addition, the effect similar to the lower swing hinge member 122 mentioned above can be acquired by providing the fixing | fixed part 121a in the back surface side of the decorative board 21, and screwing in the orthogonal direction with a board surface.
[0040]
The notch 31b has a large notch in the upper left corner of the game board 20, and is slightly lower than the protruding height position of the hinge pin 112c (the height position of the pin head) in the upper fixed hinge member 112. Further, the upper peripheral portion of the decorative plate 21 is further processed by router processing up to the position, and when the upper swing hinge member 121 is attached, the hinge plate 121b is accommodated in the cutout portion, and the upper swing hinge member 121 does not protrude in the outer peripheral direction of the decorative plate 21.
[0041]
The upper swinging hinge member 121 is arranged with the left end corner portion of the hinge plate 121b aligned with the intersection of the upper surface and the left side surface of this region of the decorative plate 21 (see FIG. 5), and the screw from the back surface side of the fixing portion 121a. By screwing the countersunk screw 123 into the fixed housing portion 31a through the insertion hole 121h, the game board 20 is fixed at a predetermined height position. The predetermined height position refers to a height position at which the outer surface distance between the upper and lower hinge plates 121b and 122b is somewhat smaller than the inner surface distance between the support plate portions 111b and 112b in the upper and lower fixed hinge members.
[0042]
When the upper swing hinge member 121 is attached, the fixed portion 121a of the upper swing hinge member 121 is received in the fixed receiving portion 31a, the hinge plate 121b is received in the cutout portion 31b, and the upper swing hinge member 121 is moved. The game board 20 is fixedly disposed so as not to protrude in the front-rear and outer peripheral directions. Further, a pin accommodating space capable of receiving the head of the hinge pin 111c is formed between the lower surface of the hinge plate 121b and the upward surface of the notch 31b.
[0043]
When the upper and lower swing hinge members 121 and 122 are attached to the decorative plate 21 in this way, the upper and lower hinge plates 121b and 122b are spaced apart from each other by the distance between the inner surfaces of the support plate portions 111b and 112b in the upper and lower fixed hinge members. The upper and lower hinge grooves 121c and 122c formed in the hinge plate are vertically overlapped with each other in a plan view with a slightly smaller interval.
[0044]
When the upper and lower fixed hinge members 111 and 112 are attached to the inside of the housing frame 10 and the upper and lower swing hinge members 121 and 122 are attached to the outer peripheral portion of the game board 20 as described above, the upper and lower hinge grooves 121c. , 122c can be engaged and disengaged in the extending direction of the hinge pins 111c, 112c and the hinge groove, respectively, and in the engaged state, can be relatively swung around the swing shaft formed by the upper and lower hinge pins. As a result, the game board 20 is supported so as to be detachably attached to the storage frame 10 and to be able to be opened and closed laterally in an engaged state.
[0045]
Now, a pressing member 140 that presses the game board 20 backward is provided in the middle of the upper and lower hinge structures 101 and 102 configured as described above. FIG. 9 shows a perspective view of the same member before mounting the pressing member 140 and an attachment peripheral portion, and FIG. 12 shows the action of the pressing member 140 when the game board 20 is attached and detached with the pressing member 140 attached. As shown in the plan sectional view, the pressing member 140 is formed in a U shape or a U shape as viewed from above and extending in the vertical direction.
[0046]
The pressing member 140 includes a strip-like substrate portion 141 extending vertically, an upper and lower intermediate portion of the substrate portion 141 extending leftward, and an arch portion 142 folded back in a semicircular arc shape, and an end portion of the arch portion 142 having a right angle The side portion 143 is folded back to extend forward, the front portion of the side portion is folded rightward (inward of the frame portion of the housing frame 10), and protrudes into the frame. It is formed by stamping and press-molding a steel plate to form the shape shown in the figure, and then performing a required surface treatment as necessary.
[0047]
The board portion 141 is provided with a salami-shaped screw insertion hole 141h at a vertical position where the pressing side portion 144 does not overlap when viewed from the front, and is formed between the upper and lower screw insertion holes 141h so as to protrude forward in the housing frame. A pin engaging hole 141p that is detachable from the positioning pin (not shown) is formed. The pressing side portion 144 is bent at a substantially right angle from the side side portion 143 toward the inside of the housing frame and extends in parallel with the substrate portion 141, while the front end side of the pressing side portion 144 has a gentle R shape toward the front. It is formed and can be smoothly engaged with the front surface of the decorative board 21.
[0048]
On the other hand, a holding member attaching portion 33 is formed in the housing frame 10 to which the holding member 140 is attached. In the holding member mounting portion 33, the front surface of the housing frame 10 is recessed rearward in accordance with the thickness and shape of the substrate portion 141 to form a substrate housing portion 33a, and upper and lower screw insertion holes are formed in the substrate housing portion 33a. A screw boss that aligns with 141h and a positioning pin that aligns with pin hole 141p are formed.
Further, a slit-like arch receiving groove 33b that is located on the left side of the substrate receiving portion 33a and that communicates the left side surface of the receiving frame 10 to the left and right is formed, and the arch portion 142 can be received.
[0049]
The pressing member 140 is configured by fitting the pin engaging hole 141p of the board portion 141 with the positioning pin of the board housing portion 33a, and inserting and tightening a flat head screw through the upper and lower screw insertion holes 141h. Fixed to. When the pressing member 140 is fixed by screws, the substrate portion 141 is accommodated and held in the substrate accommodating portion 33a without protruding from the inner surface of the accommodating frame 10, the arch portion 142 is accommodated in the arch accommodating groove 33b, and the side portion 143 is Extending forward in parallel with the left side surface of the storage frame 10, the pressing side portion 144 is provided so as to protrude toward the inside of the frame portion of the storage frame 10 (in the game board direction).
[0050]
Here, the pressing side portion 144 that protrudes inward of the frame portion of the housing frame 10 has the rear surface disposed on the base end side extending in parallel with the substrate portion 141 so that the upper and lower hinge structures 101 and 102 are engaged with each other. Thus, the game board 20 is set so as to be slightly behind the position of the front face of the decorative board 21 in a state where the game board 20 is rocked and closed. On the other hand, on the distal end side of the pressing side portion 144 formed in a gentle R shape from the base end side, the tangential direction in which the distal end extends is set to be larger than the insertion angle when the game board 20 is mounted, and the back surface position is It is set to be positioned in front of the front surface of the decorative plate 21 in the closed state.
[0051]
In such an attachment state, the pressing side portion 144 can be displaced in the left-right direction by using the side portion 143 as a swing arm by the action of the arch portion 142, and the arch portion 142 is elastically deformed. The front end side is supported so as to be displaceable also in the front-rear direction, and the distal end side is disposed so as to be swingable back and forth with respect to the proximal end side of the press side part by the elastic force of the press side part 144 itself.
[0052]
As a result, when the upper and lower hinge structures 101 and 102 are engaged, the tip of the pressing side portion 144 guides the introduction of the decorative plate 21 and the hinge grooves 121c and 122c are easily engaged with the upper and lower hinge pins 111c and 112c. In addition, the decorative plate 21 is slid obliquely between the base plate portion 141 and the pressing side portion 144 in the state of being guided in this manner, and the upper and lower hinge pins and the hinge groove are hinge-coupled. Yes (see FIG. 12 (a)).
[0053]
On the other hand, in a state where the game board 20 is swung around the swing axis by the upper and lower hinge pins and is closed in the housing frame 10, the pressing side portion 144 is engaged with the front surface of the decorative board 21 to elastically play the game board 20. To the rear (see FIG. 12B). For this reason, in the closed state, the upper and lower hinge grooves 121c and 122c are pressed backward while being engaged with the hinge pins 111c and 112c, respectively, so that the game board 20 does not rattle or vibrate back and forth. When this engagement state is viewed in detail, the front groove surfaces of the hinge grooves 121c and 122c are urged and arranged rearward in a state where they are in contact with the front peripheral surfaces of the hinge pins 111c and 112c. The front groove surface in 121c, 122c constitutes the left support reference surface (supported reference surface) of the game board 20.
[0054]
On the left side edge of the decorative board 21, when the game board 20 is inserted into the housing frame 10 obliquely and the upper and lower hinge structures 101, 102 are engaged and swung, the side edge corners on the back side are the housing frame. The upper rail decoration 22 that is chamfered in an R shape so as not to come into contact with 10 and is formed with a flank 21r and screwed to the front side of the decorative plate 21 is aligned with the protruding position of the pressing side 144. The receiving portion 34 for receiving the pressing side portion 144 is notched, and the corner portion of the left front end is obliquely chamfered to form a tapered surface 22c to increase the angle tolerance when the game board is attached and detached. Yes.
[0055]
In the embodiment described above, the upper and lower fixed hinge members 111 and 112, the upper and lower swinging hinge members 121 and 122, and the pressing member 140 are shown as examples that are configured separately from each other. The fixed hinge member or the swing hinge member can be integrated as appropriate.
[0056]
For example, as shown in FIG. 10, the upper and lower portions of a belt-like fixing portion 115a extending vertically are bent forward to form support plate portions 115b and 115b, and hinge pins 115c and 115c ′ are fixed to these and fixed vertically. An integral fixed hinge member 115 having a hinge portion can be formed. Also, hinge grooves 125c and 125c are formed above and below a belt-like fixed portion 125a extending vertically and bent forward to form hinge plates 125b and 125b, and an integral swing hinge member having swing hinge portions above and below 125 may be formed. Further, a pressing portion 145 having the same configuration as that of the pressing member 140 described above may be formed in the middle of the upper and lower support plate portions 115b, 115b in the fixed hinge member 115, so that the fixed hinge member and the pressing member are integrated. Is possible.
[0057]
According to the above configuration, the inner surface spacing of the upper and lower support plate portions 115b and 115b and the outer surface spacing of the hinge plates 125b and 125b can be made uniform within the component accuracy of each member, and both the number of components and the number of mounting steps can be reduced. can do. Note that the screw insertion hole 115h for attaching the fixed hinge member 115 to the housing frame 10 is generally disposed at a position that does not overlap with the pressing side portion 148 in the pressing portion 145, but the fixed hinge member 115 When there are overlaps due to the number of screws necessary for fixing 145 and the arrangement pitch, or when it is difficult to provide a screw boss on the back side of the housing frame 10 at the upper and lower positions of the press side portion 148, It is also preferable to provide the center of the back side of the side portion 148 in terms of equal load support. In such a case, it is preferable to provide a tool insertion hole 148h through which the screwing tool (driver) is inserted into the pressing side portion 148. Accordingly, the fixed hinge member 115 can be easily fixed or removed without using a special work tool and without using more screws than necessary.
[0058]
In the above description, the configuration of the opening / closing mechanism 100 provided on the left side of the storage frame 10 and the game board 20 has been mainly described, but the game board 20 is attached to and detached from the right side of the storage frame 10 and the game board 20. An opening assisting member 150 for facilitating the movement and a locking mechanism 200 for locking and holding the game board 20 swingably closed in the housing frame 10 are provided.
[0059]
As shown in FIG. 2, the opening assisting member 150 is provided inside the housing frame 10 and positioned below the upper frame side locking structure 210. The opening assisting member 150 is shown in FIG. 13 as a perspective view of the opening assisting member 150 and the mounting portion before the member is attached, and is opened when the game board 20 is opened and closed with the opening assisting member 150 attached. As shown in FIG. 14 as a cross-sectional plan view, the auxiliary member 150 is composed of a plate-like body that is bent into a substantially crank shape.
[0060]
The opening auxiliary member 150 includes a rectangular flange-shaped substrate portion 151, an arch portion 152 that is bent in a semicircular arc shape with the left end of the substrate portion 151 protruding forward, a side portion 153 that is connected to the arch portion 152 and extends rearward. The rear part of the side part is composed of a biasing piece part 154 bent toward the left side (inward of the frame part of the housing frame 10) and the like. It is formed by performing a required surface treatment as required.
[0061]
The board portion 151 is provided with a screw insertion hole 151h for inserting a pan head screw at a predetermined pitch in the vertical direction. The lateral dimension of the side part 153 is formed in accordance with the longitudinal depth of the storage frame 10, and when the opening assisting member 150 is attached to a predetermined position of the storage frame 10, in other words, In this case, the rear surface on the base end side of the urging piece 154 is set to be positioned slightly forward of the inner surface of the housing frame 10. Further, the urging piece 154 is formed such that the rear end of the side portion 153 is bent at a somewhat acute angle, and the front end side is disposed obliquely forward to the left. The tip of the urging piece 154 is formed in an R shape toward the rear, and can be smoothly engaged with the back surface of the decorative board 21.
[0062]
An auxiliary member attaching portion 35 for attaching the opening auxiliary member 150 is formed in the housing frame 10. In the auxiliary member mounting portion 35, a part of the housing frame 10 is recessed according to the arrangement position shape of the substrate portion to form a flat substrate attachment surface 35a, and extends backward from the substrate attachment surface 35a. Cylindrical screw bosses 35b are integrally formed at a predetermined interval in the vertical direction.
[0063]
The opening assisting member 150 is fixed to the auxiliary member mounting portion 35 by causing the substrate portion 151 to abut on and support the substrate attachment surface 35a, inserting a pan head screw 156 through the upper and lower screw insertion holes 151h, and tightening the screw boss 35b. Is done. When the opening assisting member 150 is screwed, the side portion 153 extends rearward along the right side surface of the storage frame 10, and the urging piece 154 projects from the rear end toward the inside of the frame portion of the storage frame 10. The part is arranged so as to float up diagonally to the left. When the opening assisting member 150 is attached in this way, the urging piece 154 is disposed such that the tip side thereof can be swung back and forth by the elastic force of the side portion 153 and the urging piece.
[0064]
Further, on the game board 20 side, an auxiliary member receiving portion 36 that receives the opening auxiliary member 150 when the gaming board 20 is closed is formed in alignment with the disposition position of the opening auxiliary member 150. The auxiliary member receiving portion 36 is partially cut away at the alignment position of the decorative plate 21 and partially receives the standing wall surface of the upper rail decoration 22 to receive the arch portion 152 and the side portion 153 of the opening auxiliary member 150. The arch portion 152 and the side portion 153 are formed in the auxiliary member receiving portion 36 without contacting the opening auxiliary member 150 when the game board 20 is rocked and closed. It has become acceptable.
The face plate on the front surface of the upper rail decoration 22 is formed so as to cover the front of the auxiliary member receiving portion 36, and an opening operation portion 22m that can be fingered is formed here. For this reason, the operator can easily open the gaming board 20 using the opening operation portion 22m, and the opening assisting member 150 is not directly visible from the front of the gaming machine.
[0065]
Therefore, when the upper and lower hinge structures 101 and 102 are engaged to swing the game board 20 in the closing direction, the decorative plate 21 and the upper rail decoration 22 do not come into contact with the opening auxiliary member 150 and the auxiliary member receiving portion 36. The arch portion 152 and the side portion 153 are received therein to allow the game board to swing in the closing direction. Then, the back surface of the decorative plate 21 is smoothly engaged with the tip of the biasing piece portion 154 projecting diagonally forward into the frame at the swing angle position immediately before the back surface of the decorative plate 21 becomes parallel to the inner surface of the housing frame 10. To do. When the game board 20 is further swung in the closing direction from this contact state, the opening assisting member 150 is elastically deformed, and the tip end side of the urging piece 154 is swung back and is moved by the locking mechanism 200 described below. In the closed angle position where the locking and fixing are performed, as shown by the solid line in FIG. 14, the urging piece 154 is disposed so as to be sandwiched between the inner surface of the housing frame 10 and the rear surface of the decorative plate 21. .
[0066]
On the other hand, when the pressing force that pushes the game board 20 backward at the closing angle position is released, the elastic force stored in the opening assisting member 150 self-resets to the shape before elastic deformation, and the tip of the urging piece 154 Presses the back surface of the decorative board 21 forward to swing the game board 20 in the opening direction. Thereby, the right side of the game board 20 is slightly lifted from the inner surface of the housing frame 10 (see the two-dot chain line in FIG. 14), and the game board 20 can be easily opened by placing a finger on the opening operation portion 22m. .
[0067]
In the embodiment, the opening auxiliary member 150 is illustrated as being crank-shaped forward and attached from the front side of the housing frame 10, but the opening auxiliary member is formed in an L-shape forward and the right side of the housing frame 10. It is fixed to the surface, or a slit-shaped opening is provided on the right side surface and fixed outside the side surface, or the opening assisting member is formed in a crank shape at the rear and the housing frame 10 is provided with a slit-shaped opening. It is good also as a form fixed on the back surface side of 10. The opening assisting member may be disposed at a location where the urging piece portion can press the decorative plate 21 forward. For example, in addition to the middle portion of the upper and lower frame side locking structures 220, You may provide in a center part on either side, and it is good also as a structure provided in more than one place.
[0068]
Next, the locking mechanism 200 is provided above and below the right side of the front surface of the storage frame 10 and the game board 20, and the game board 20 supported by the opening / closing attachment / detachment mechanism 100 so as to be able to swing open / close is closed at the closing angle position. This is a mechanism for locking and fixing the game board 20 when the game is played. The locking mechanism 200 includes a frame side locking structure 210 provided on the storage frame 10 side and a board side locking structure 220 provided on the game board 20 side. Hereinafter, the locking mechanism 200 will be described with reference to FIGS.
[0069]
15 to 18 mainly show the configuration of each part of the locking mechanism 200. FIG. 15 is a perspective view showing the main configuration of the locking mechanism 200 in an exploded state, and FIG. FIG. 17 is an exploded sectional view showing the assembly relationship of the members constituting the locking mechanism 200. FIG. 17 shows a lever portion 215c of the frame side locking structure and a locking receiving portion 225 of the panel side locking structure in the locking mechanism 200. FIG. 18 is a single front view of main members constituting the locking mechanism 200. FIG.
[0070]
19 to 24 mainly show the positional relationship and operation of each part when the game board 20 is fixedly held by the locking mechanism 200. FIG. 19 shows the frame side locking structure 210 and the board side relation. FIG. 20 is a side sectional view showing the relationship between the frame side locking structure 210 and the board side locking structure 220 when the game board 20 is attached and detached, and FIG. FIG. 22 is a side sectional view showing the locked state of the game board 20 by the mechanism 200, FIG. 22 is a rear view seen in the direction of arrows F22-F22 in FIG. 21, and (a) is a rear view in the locked standby state. FIG. 23 is a rear view in the locked state, FIG. 23 is a plan sectional view of the locking mechanism 200 in the locked state for explaining the positioning operation of the game board by the locking mechanism 200, and FIG. It is a front view for demonstrating a degree.
[0071]
The disposition position of the locking mechanism 200 is as uniform as possible in consideration of the game area PA provided on the game board 20, the formation position of the launch passage, and the symmetry with the opening / closing mechanism 100. In the embodiment, an example is shown in which two upper and lower positions are provided outside the game area PA. Each locking mechanism 200 includes a frame side locking structure 210 provided in the storage frame 10 and a board side locking structure 220 provided in the game board 20.
[0072]
The frame-side locking structure 210 is press-fitted into the bolt support portion 212 from the rear side, a fixed support portion 211 that is bulged forward toward the housing frame 10, a bolt support portion 212 formed on the back side of the fixed support portion 211, and the like. The bolt 213 extends and extends to the front fixed support portion 211, and the fixed lever 215 is rotatably supported by being screwed into the screw portion of the bolt 213 at the rear end side.
[0073]
The fixed support portion 211 has a cylindrical lever housing portion 211 a and a fixed support surface 211 c formed in an annular shape at the front end of the cylinder, and is formed in a bottomed cylindrical shape that opens forward in the housing frame 10. The inner diameter of the lever accommodating portion 211a is formed slightly larger than the outer diameter of the rotating shaft portion 215a of the fixed lever 215, and the lever accommodating portion 211a is rotatable by receiving the rotating shaft portion 215a from the front. Can be fitted and supported. The fixed support surface 211c is an annular support surface formed flat, and the fixed support surfaces 211c of the fixed support portions provided at the four positions of the upper, lower, left and right are formed on the same surface, and the support reference surface of the game board 10 is provided. Form. In addition, it is also a preferred embodiment to form a guide pin 211p projecting forward at the upper and lower positions of the fixed support surface 211c, and the guide pin 211p will be described in detail later.
[0074]
The bolt support portion 212 has a support shaft hole 212a that is opened to communicate with the bottom of the fixed support portion 211 in the front-rear direction, and a head receiving hole 212c that is hexagonal and opens on the rear surface of the front frame behind the support shaft hole 212a. Are formed integrally with the fixed support portion 211. The shaft hole 212a is positioned coaxially with the lever accommodating portion 211a and has a slightly smaller diameter than the outer shape of the shaft portion 213a of the bolt 213. When the bolt 213 is press-fitted from the rear, the shaft portion 213a of the bolt is The bolt 213 is fixed and held so that it does not move in the front-rear direction. The head receiving hole 212c is formed slightly larger than the hexagonal shape of the bolt head 213c. When the bolt 213 is press-fitted from the rear, the bolt head 213 is received and the bolt 213 is bolted. Hold it so that it does not rotate around the shaft.
[0075]
The bolt 213 includes a shaft portion 213a, a screw portion 213b formed in front of the shaft portion, and a bolt head portion 213c formed at the rear end portion. A bolt having a screw part suitable for attaching and detaching and fixing the game board 20 with respect to the rotation operation angle when the fixing lever 215 is rotated is used. Specifically, in the locking mechanism 200 shown in the present embodiment, plated bolts or stainless steel bolts having a screw pitch of about 1 to 2 mm are used.
[0076]
The bolt 213 is press-fitted into the bolt support portion 212 from the rear side of the front frame 2, the screw portion 213 b in front of the bolt is located at the axial center of the lever housing portion 211 a and extends forward, and the shaft portion 213 a on the bolt base end side is supported. The bolt head 213c is held in the head hole 212c by being held by the shaft hole 212a, so that the bolt 213 does not move in the front-rear direction and does not rotate around the shaft portion of the bolt. It is held fixed. Since the head receiving hole 212c is formed in a hexagonal shape that matches the shape of the bolt head 213c, the radial direction angular position of the screw biting portion of the bolt 213 to be press-fitted and fixed is set in units of 60 degrees (or 60 It is possible to arrange them at a substantially constant angular position within a range of degrees).
[0077]
The fixed lever 215 includes a columnar rotation shaft portion 215a, a female screw portion 215b formed on the axis of the rotation shaft portion 215a from the rear end side, and a rotation shaft portion 215a in front of the rotation shaft portion 215a. The lever portion 215c and the like which are formed in an opposing direction with the nip interposed therebetween are mainly formed, and are integrally formed by a molding means such as injection molding using a resin material such as ABS resin or polyacetal resin (POM). Thereby, the angle position of the internal thread biting part with respect to the lever part 215c can be formed uniformly. If necessary, glass fiber is added to the resin material to improve member strength, or a coiled metal screw insert is inserted into the female screw portion 215b, or a metal bush having a female screw portion is press-fitted. Or it is good also as a form which insert-molds and reinforces.
[0078]
Further, in this embodiment, a pressing portion 215d that is smoothly projected outward from the rotating shaft portion 215a on the back side of the base portion of one lever portion 215c, and a hexagon wrench of a predetermined size is formed on the front end portion of the rotating shaft portion 215a. The example which provided the tool engagement hole 215s formed according to the front-end | tip shape is shown. Here, the pressing portion 215d is formed on the back side of the base portion of one of the two lever portions formed in the opposing direction, but an instruction is provided to clarify the position of the pressing portion 215d. An index is preferably provided, and in the figure, an example is shown in which a marker 215m is attached to the lever portion 215c on the side opposite to the side where the pressing portion 215d is formed (see FIG. 22).
[0079]
The fixed lever 215 is fixedly supported by fitting the rotation shaft portion 215a into the fixed lever accommodating portion 211a from the front of the fixed support portion 211, screwing the female screw portion 215b into the screw portion 213b of the bolt 213, and screwing in a predetermined amount. The part 211 is rotatably supported. When the fixing lever 215 is attached in this way, the lever portion 215c of the fixing lever is disposed in front of the fixing support surface 211c, and can be rotated and moved in the front-rear direction according to the screwing of the male and female screw portions. The frame side locking structure 210 is formed in the storage frame 10.
[0080]
Here, the angle setting of the screw biting portion at the time of press-fitting the bolt 213 and the standard screwing depth of the fixing lever 215 are in a state where the lever portion 215c with the marker 215m is positioned vertically upward, The distance in the front-rear direction between the locking surface 215r on the back surface of the lever portion and the fixed support surface 211c is slightly larger than the thickness dimension H of the locking receiving portion 225 described later. From this state, the fixing lever 215 is moved in the screw fastening direction (front view). When tightened 90 degrees clockwise, the distance in the front-rear direction between the locking surface 215r on the back of the lever portion and the fixed support surface 211c is the same as the thickness dimension H of the locking receiving portion 225 to slightly smaller. Is set as follows. In the following description, an angular position where the fixed lever 215 thus attached is positioned so that the lever portion 215c with the marker 215m is directed vertically upward as described above is referred to as a “release position”.
[0081]
In the case where the guide pin 211p is protruded and formed on the upper and lower positions of the fixed support surface 211c, the protrusion height of the guide pin 211p from the fixed support surface 211c is somewhat larger than the thickness dimension H of the latch receiving portion 225. It is set to be small (for example, about 1/2 of the screw pitch of the bolt 213). With such a configuration in which the guide pin 211p is provided, when the fixing lever 215 is screwed in and set to the release position, the upper and lower lever portions 215c are fixed in the direction of loosening the screw from the angular position where the upper and lower lever portions 215c are in contact with the guide pin 211p. The fixed lever 215 is disposed at the release position by rotating the lever 215 1/2 to 1 and positioning the lever portion 215c provided with the marker 215m vertically upward. For this reason, the fixing lever 215 can be set to the release position quickly and reliably without using an angle setting jig or relying on the operator's intuition.
[0082]
The board-side locking structure 220 is provided on the game board 10 in alignment with the frame-side locking structure 210 configured as described above. The board side latching structure 220 is mainly composed of a latch receiving portion 221 formed on the decorative board 21 and a latch receiving portion 225 integrally formed with the upper and lower rail decorations 22 and 23.
[0083]
The latch receiving portion 221 is routed through the plate surface of the decorative plate 21 in a front and rear direction so as to be a slightly larger U-shaped cut in accordance with the arrangement position and shape of the fixing support portion 211 on the housing frame side. The fixed support part 211 which is formed by this and protrudes ahead from the back surface of the storage frame 10 is formed so that it can be received.
[0084]
The latch receiving part 225 is located in front of the latch receiving part 221 and is formed in a circular flange shape protruding forward from the back of the rail decorations 22 and 23, and a flat latch receiving surface 225c is provided on the front side. It has been. The locking receiving surface 225c is formed with a locking opening 225b that is similar to the lever portion 215c when the fixed lever 215 is disposed at the release position, and is communicated in the front-rear direction. The locking opening 225b includes left and right arc portions through which the rotation shaft portion 215a of the fixed lever is inserted and upper and lower lever insertion portions through which the lever portion 215c is inserted, and the front of the fixed lever with the fixed lever 215 in the release position. The part can be inserted back and forth.
[0085]
A support rib 225a extending rearward along the opening edge of the locking opening 225b is formed on the back side of the locking receiving surface 225c. The left and right arc portions of the support rib 225a are somewhat larger than the outer diameter of the rotation shaft portion 215a, and are formed in accordance with the annular diameter of the fixed support surface 211a. When the lever portion 215c is inserted, the rear end surface of the arc portion of the support rib 225a comes into contact with and is supported by the fixed support surface 211a. That is, the rear end surface of the support rib 225a is the right support reference surface (supported reference surface) of the game board 20.
[0086]
On the other hand, on the back side of the lever portion 215c facing the locking receiving surface 225c, there is provided a locking surface 215r formed in a rearward convex arc shape (see FIG. 17). For this reason, when the lever 215c protrudes forward through the locking opening 225b with the fixed lever 215 in the release position, and the fixed lever 215 is rotated in this direction (locking standby state) in the screw fastening direction, the lever The portion 215c rotates without being caught by the opening edge of the locking opening 225b, and moves rearward in response to the screwing, so that the locking surface 215r smoothly engages with the locking receiving surface 225c.
[0087]
Further, in the state where the fixed lever 215 is disposed at the release position, the pressing portion 215d that is projected and formed on the rotating shaft portion 215a is the base portion of the lower lever portion (the lever portion on the side where the marker 215m is not attached). When the lever portion 215c is inserted through the locking opening 225b, the maximum diameter portion of the pressing portion 215d slightly protrudes from the lower lever insertion portion, and the left and right support ribs 215a It arrange | positions in the state adjacent to the internal peripheral surface (refer Fig.22 (a)).
[0088]
Then, when the fixing lever 215 is rotated in this locking standby state in the screw tightening direction (clockwise when viewed from the front, and counterclockwise since viewed from the back in FIG. 22), the pressing portion 215d is moved to the left support rib. It engages with the inner peripheral surface of 225a and presses the locking receiving portion 225 leftward in the front direction (see FIGS. 22B and 23). As a result, the game board 20 is pressed to the left in the front, and the upper and lower hinge grooves 121c and 122c are brought into contact with the hinge pins 111c and 112c at the arc portion at the right end to be positioned and supported. In this way, the game board 20 is positioned in the front-rear and left-right directions, and is securely latched and held without causing play or vibration.
[0089]
A lock receiving cover 227 that covers the front of the lock receiving portion 225 is attached to the lock receiving portion 225 located below the game board 20 so as to be openable and closable on the lower rail decoration 23. While being held in a closed state so that the locking mechanism 200 is not visually recognized from the front side of the glass door 5, an affixing surface such as a model seal or a copyright seal is formed.
[0090]
Now, a case where the gaming board 20 is mounted and fixed to the storage frame 10 using the opening / closing attachment / detachment mechanism 100 and the locking mechanism 200 described above will be described with reference to each drawing in addition to FIG. FIG. 25 is a plan view of the pachinko machine PM in a state where the glass door 5 is opened.
[0091]
When the game board 20 is mounted, the glass door 5 is opened and the upper and lower fixing levers 215 of the frame side locking structure 210 are set to the release positions, and the left edge of the game board 20 is set as the front frame 2. Is inserted obliquely into the storage frame 10 from the front side. Then, the lower swing hinge member 122 at the left front end of the game board 20 is temporarily placed and supported on the housing frame 10 in accordance with the position of the lower fixed hinge member 112 (see FIG. 11), and then the decorative board. The front surface of 21 is engaged with the front end of the pressing side portion 144, and the gaming board 20 is slid and moved to the left rearward as it is.
[0092]
Then, the side portion 143 slightly swings to the left and comes into contact with the left side surface of the housing frame 10, positions the tip of the pressing side portion 144, defines the introduction position of the decorative plate 21, and The hinge grooves 121c and 122c are guided to the upper and lower hinge pins 111c and 112c, respectively, to guide their engagement. Then, the game board 20 is received obliquely between the board portion 141 and the pressing side portion 144 along the hinge groove, and the upper and lower hinge pins and the hinge groove are hinge-coupled (see FIG. 12A).
[0093]
Here, since the upper and lower swing hinge members 121 and 122 are housed in the housing portions 31b and 32b, respectively, so as not to protrude in the outer peripheral direction of the game board, the swing hinge members are used when handling the game board. There is no possibility that the peripheral member is damaged by hooking or the swinging hinge member is deformed. In addition, since the lower fixed hinge member 112 is accommodated in the fixed hinge accommodating groove 12 and is disposed flat with the surrounding frame surface, it can be smoothly hingedly engaged without being caught when the game board 20 is mounted. . Further, the relief surface 21r is formed at the corner of the back surface of the decorative plate 20, and the taper surface 22c is formed at the corner of the front surface of the upper rail decoration 22, so that the upper and lower hinge structures are hinged at a relatively large insertion angle. Can do.
[0094]
Next, the game board 20 hinged in this way is swung around the swing shaft and closed in the housing frame 10. In the process of swinging the game board 20 in the closing direction, the pressing position of the decorative board 21 by the pressing side portion 144 smoothly changes from the distal end side to the proximal end side of the pressing side portion 144. On the other hand, on the right side of the game board 20, the back surface of the decorative plate 21 is at the swing angle position immediately before the back surface of the decorative plate 21 becomes parallel to the inner surface of the housing frame 10, and the front end portion of the biasing piece 154 of the opening assisting member 150. Engage smoothly. When the game board 20 is pressed rearward against the elastic force of the opening assisting member from this contact state, the opening assisting member 150 is elastically deformed and the front end side of the urging piece 154 is oscillated and displaced rearward. 14 is sandwiched and accommodated between the inner surface of the housing frame 10 and the back surface of the decorative plate 21 (solid line in FIG. 14). See).
[0095]
At this time, in the upper and lower locking mechanisms 200, the locking receiving portion 221 receives the fixed support portion 211 and enters the receiving frame in the process of reaching the closing angle position, and the rear end surface of the support rib 225a is the fixed support surface 211c. The lever portion 215c of the fixed lever protrudes forward of the latch receiving surface 225c through the latch opening 225b.
[0096]
Therefore, the lever portion 215c protruding forward is picked and rotated clockwise. Then, the fixing lever 215 rotates and moves rearward according to the screwing, and the locking surface 215r on the back surface of the lever portion is smoothly engaged with the locking receiving surface 225c. When the fixing lever 215 is tightened approximately 90 degrees from the release position (that is, when the lever portion 215c with the marker 215m is rotated to the angle position of 90 degrees on the front right), the locking surface 215r is locked. The receiving surface 225c is pressed rearward so that the latch receiving portion 225 is sandwiched between the lever portion 215c and the fixed support surface 211c, and the game board 20 is positioned and pressed and fixed in the front-rear direction.
[0097]
In addition, the pressing portion 215d formed on the back side of the base portion of the lever portion 215c that is rotationally displaced to the left side of the rotation shaft portion engages with the inner peripheral surface of the support rib 225a on the left side of the front face in the above tightening process. Is pressed to the left, and the game board 20 is positioned in the left-right direction and fixed. Thereby, the game board 20 is positioned and fixedly held in the housing frame 10 without any play (FIG. 24 (a) → (b)).
[0098]
On the other hand, when removing the game board 20 fixed and held in this manner, first, the fixing lever 215 of the upper and lower locking mechanisms 200 is rotated to the release position (counterclockwise) while lightly pressing the game board 20 backward. Let Then, when the supporting force holding the game board 20 is loosened, the biasing side portion 154 held between the back surface of the decorative board 21 and the inner surface of the housing frame 10 is stored in the opening assisting member 150. The self-reset to the state before the deformation by the elastic force, presses the back surface of the decorative board 21 forward, and swings the game board 20 in the opening direction. For this reason, the right side of the game board 20 is slightly lifted from the housing frame 10 (see the two-dot chain line in FIG. 14), and the game board 20 can be easily rocked and released using the opening operation part 22m that can be hooked. Can be made. Subsequent detaching work may be performed in reverse to the above mounting work in principle.
[0099]
In the locking mechanism 200, screws having an appropriate pitch are arranged at appropriate angular positions so that the locking receiving portion 225 is clamped when the fixing lever 215 is tightened 90 degrees from the release position as described above. It is configured to be fixed, and at such a standard fixing position, a predetermined clearance CA (for example, a clearance corresponding to one screw pitch) is generated between the rear end surface of the fixing lever 215 and the bottom surface of the lever accommodating portion 211a. The fixed lever 215 and the lever accommodating part 211a are set. For this reason, for example, there is a difference or variation in the thickness dimension of the latch receiving portion 225 depending on the rail decoration used, or the decorative plate 21 is warped, or the fixing lever is deformed due to the fixed state for a long time. Even in this case, these errors can be absorbed by adjusting the tightening angle of the fixing lever, so that the game board 20 can be securely fixed.
[0100]
For example, when the thickness of the latch receiving portion 225 is thinner than the reference thickness, or when the lever portion 215c of the fixing lever is worn or deformed, the fixing lever 215 is moved as shown in FIG. The lever part 215c can be engaged and pinched and fixed by rotating beyond the standard 90 degree fixing position on the right. On the contrary, when the thickness of the latch receiving portion 225 is larger than the reference thickness or when the decorative board is warped, the fixing lever 215 is moved to a standard position as shown in FIG. The lever portion 215c can be engaged and fixed at an angular position where it is not rotated to the fixing position of 90 degrees to the right.
[0101]
In the present embodiment, the latch receiving portion 225 is formed as a rail decoration, and only the latch receiving portion 225 is sandwiched, so that even if the decorative plate 21 has a variation in thickness, the influence is exerted. For example, in the case of a configuration in which the decorative board 21 is sandwiched, the game board 20 can be fixedly held by absorbing errors due to variations in the thickness of the decorative board 21. In addition, the fixing lever 215 can be tightened by using a tool such as a hexagon wrench using the tool engaging hole 215s at the front end of the fixing lever as necessary, thereby further strengthening the fixing lever 215. It is possible to prevent a mischief such as fixing and holding and improperly opening and closing the fixing lever 215.
[0102]
As described above, according to the locking mechanism 200, the gaming board 20 can be reliably locked and fixed regardless of variations in the thickness of the locking receiving portion 225, errors of each member, and the like, and the state of the gaming board 20 is related. Whether the vehicle is in the stop-standby state or the fixed state can be visually recognized from the angular position of the fixing lever 215. However, there may be a case where it is mistaken for the completion of fixing at the stage where the lower locking mechanism is fixed so quickly that the attaching / detaching operation is performed. For this reason, in this pachinko machine PM, in order to prevent the game board 20 from being used in a game in an unfixed state due to such misidentification, a fixing forgetting prevention mechanism 250 is provided. Hereinafter, the fixing forgetting prevention mechanism 250 will be described with reference mainly to FIGS. 21 and 26 to 28.
[0103]
26 and 27 are plan sectional views showing the relationship between the locking mechanism 200 and the fixing forgetting prevention mechanism 250. FIG. 26 is a plan sectional view when the locking mechanism 200 is not fixed. FIG. FIG. 28 is a plan view showing the operation of the forgetting-fixing prevention mechanism 250 when the locking mechanism 200 is in a fixed state.
[0104]
Each figure shows an example in which an interference projection 255 is provided on the glass door 5 as an interference member in the fixing forgetting prevention mechanism 250. The interference protrusion 255 is provided on the back side of the glass door 5 so as to protrude rearward from the door frame 51, and a stepped columnar protrusion is formed integrally with the glass door 5 (FIGS. 1, 2 and (See also FIG. 25).
[0105]
The interference protrusion 255 is provided in accordance with the position of the locking mechanism 200 that is positioned behind and opposes the glass door 5 when the glass door 5 is closed, and when the glass door 5 is swung in the closing direction. The fixing lever 215 positioned at the locking position tightened by a predetermined angle from the release position is set so as not to interfere with the lever portion 215c of the fixing lever 215 positioned at the release position. That is, the interference protrusion 255 is provided so as to protrude above or below the rotation shaft portion 215a of the fixed lever 215, and in the illustrated fixing forgetting prevention mechanism 250, it is disposed so as to protrude above the rotation shaft portion 215a. An example is shown.
[0106]
Therefore, in FIGS. 21 and 27, the interference projection 255 is fixed to the locking lever 200 so that the fixing lever 215 of the locking mechanism 200 is positioned at the locking position of 90 degrees to the right and the glass door 5 is closed. The glass door 5 is completely closed and locked without being interfered with the 215 and positioned above the rotation shaft portion 215a.
[0107]
On the other hand, when the fixed lever 215 is in the release position, the lever portion 215c is positioned above and below the rotation shaft portion 215a, and as shown in FIG. 26, the tip of the interference protrusion 255 interferes with the lever portion 215c of the fixed lever. Thus, the glass door 5 cannot be closed. For this reason, the worker who performed the mounting work of the game board 20 can immediately understand that the game board 20 is not completely fixed because the glass door 5 cannot be closed. Therefore, forgetting to fix the game board 20 can be prevented in advance, and the game board 20 can be prevented from being used in a game in an incompletely fixed state.
[0108]
In this embodiment, when the interference projection 255 is provided on the back surface of the glass door 5 and the glass door 5 is to be closed with the fixing lever 215 in the release position, the interference projection 255 contacts the lever portion 215c. An example is shown in which the glass door 5 cannot be closed in contact with it. However, when a locking receiving cover 227 is provided in front of the fixing lever 215 like the lower locking mechanism, for example, By providing a protrusion insertion hole through which the interference protrusion 255 can pass through the cover surface of the latch receiving cover, the same structure as in the above embodiment can be provided. Also, a projection similar to the interference projection 255 is provided on the back surface of the latch receiving cover 227, and when the fixing lever 215 is in the release position, the projection of the latch receiving cover contacts the lever portion 215c of the fixing lever and closes. However, the glass door 5 may not be closed along with this.
[0109]
Further, in the locking mechanism 200, a hexagonal tool engagement hole 215s is provided at the front end portion of the fixed lever 215, and a mode that can be opened and closed by using a tool such as a hexagon wrench is illustrated, but FIG. As shown in FIGS. 29 (a) and 29 (b), front views of the same locking mechanism as in b) are shown in FIGS. 29 (a) and 29 (b), and this engagement hole can be opened and closed with a key used when unlocking the locking device 4. It may be 215t. Thereby, when the game board 20 is attached and detached, it is possible to perform work using a commonly used matching key without preparing a separate tool, and it is possible to effectively prevent unauthorized operation by an unauthorized person who does not have the matching key.
[0110]
Further, in the embodiment, the male support portion 211 is provided with the male screw portion (bolt 213) and the fixed lever 215 is provided with the female screw portion 215b to be screwed. However, the screw of the fixed support portion 211 and the fixing lever 215 is shown. The screwing form may be a form in which the male and female are reversed. In other words, a female screw portion may be formed at the rear portion of the fixed support portion 211, and a male screw portion protruding rearward may be provided at the rear end of the fixing lever 215 so that these are screwed together. In this case, as means for providing a male screw portion on the fixing lever 215, for example, a structure in which a stud bolt is implanted in the screw portion 215b of the fixing lever, or a bolt support portion (212) similar to the above is provided on the fixing lever. Appropriate means such as a structure for press-fitting and a structure in which a metal member having a male screw part is formed by insert molding or press-fitting into a fixing lever can be used.
[0111]
By the way, in the above, with respect to the holding member 140 that protrudes inward of the frame portion of the housing frame and engages with the front surface of the game board 20 and presses the game board 20 backward, the game board 20 is guided when the game board is mounted. The basic function of pressing the rear 20 to position and hold the housing frame 10 without backlash has been described. However, the holding member 140 has an additional function, which will be described below. Please refer to FIG. 12 showing the operation of the pressing member as appropriate.
[0112]
First, in the opening assisting member 140 shown in each drawing of this embodiment, when the game board 20 is inserted into the housing frame 10 diagonally to the left and engaged with the upper and lower hinge structures, the front end of the pressing side 144 The front surface position of the decorative plate with which the part abuts, that is, the point of action of the backward pressing force, is set so as to be located on the right side of the vertical line standing on the front surface of the decorative plate 21 from the swing shaft formed by the upper and lower hinge pins. ing. This means that the rotational moment in the initial stage of engagement acts in the direction in which the game board 20 is closed.
[0113]
On the other hand, when the game board 20 is swung in the closing direction after the hinges of the upper and lower hinge structures are coupled, the point of action of the pressing force moves to the proximal end side of the pressing side portion 144, and near the left end of the decorative board 21 in the closed position. Press backwards. This means that the rotational moment acting on the game board 20 in the swinging and closing process changes from the closing direction to the opening direction, and at the closing angle position, the game board 20 is pushed backward as a force. This means that the rotation moment about the swing axis acts in the opening direction.
[0114]
For this reason, the illustrated holding member 140 functions as a closing assisting member that biases the gaming board 20 in the closing direction at an angular position with a large opening angle according to the angular position of the gaming board 20, and an angular position close to the closing angle. Then, like the opening assisting member 150 described above, it functions as an opening assisting member that biases in the opening direction. As a result, the operability of the attaching / detaching work is improved to constitute a fixing device with good workability.
[0115]
In addition, it is also possible to give a function different from the above by appropriately setting the shape of the pressing side portion 144 and the pressing position on the front surface of the game board. For example, the refraction angle of the pressing side portion 144 with respect to the side side portion 143 is formed as an acute angle, or a convex arc-shaped protruding portion is formed at the tip of the pressing side portion 144 so that the action point of the pressing force is a game. Regardless of the opening / closing angle position of the panel 20, by setting so as to be always located on the right side of the vertical line set up from the swing axis, it is possible to cause the rotational moment to always act in the closing direction and to function as a closing auxiliary member. In addition, for example, by forming the pressing side portion 144 to be short, the point of action of the pressing force can always be applied to the left side of the perpendicular, thereby functioning as an opening assisting member. Can do.
[0116]
【The invention's effect】
As described above, the present invention includes a game board having a game area provided on the front surface and a frame member provided with a housing part that detachably accommodates the game board at a predetermined position, and a game ball is provided in the game area. In a bullet ball game machine configured to play a game, the fixed hinge member disposed on the frame member and the fixed hinge member disposed on one side of the game board are engaged and disengaged. A swinging hinge member capable of relative swinging in the horizontal direction and a projection protruding inward of the frame member, guides the game board when the game board is introduced into the frame member, and accommodates the game board in the frame member In this state, a pressing member is provided that contacts the front side of the game board and biases the game board to the rear side.
And a locking mechanism provided on the other side of the frame member and the game board for locking and holding the game board when the game board is closed at the closed angle position and received in the frame member. The stopping mechanism has a game board lateral direction biasing means for biasing the game board to one side of the frame member, and when the swing hinge member is engaged with the fixed hinge member and the game board is accommodated in the frame member. In addition, the holding member abuts the front surface of the game board and urges the game board backward to position and hold the game board in the front-rear direction, and when the locking mechanism locks and fixes the game board, The direction biasing means biases the game board to one side to position and hold the game board in the left-right direction. Thereby, it latches and hold | maintains reliably, without producing a backlash and a vibration.
[0117]
With the opening / closing attachment / detachment mechanism having such a configuration, in the game board mounting operation, it is only necessary to pay attention to engaging the swing hinge member with the fixed hinge member, and the rest is supported by the opening / closing attachment / detachment mechanism. By simply closing the game board, the game board is disposed in a standby state, and the game board is locked and held at a predetermined position by operating the fixing member. Also, in the detaching operation to remove the game board, the fixing member is released to release the lock by the lock mechanism, and the game board supported by the opening / closing attachment / detachment mechanism is swung from the closed position to support the lower edge of the game board. The game board can be removed in an easy-to-use state. Therefore, it is not necessary to perform delicate alignment while supporting the entire weight of the relatively heavy game board, and the game board can be easily attached and detached.
[0118]
Further, the opening / closing mechanism of this configuration includes a pressing member that engages with the front surface of the game board and biases the game board backward when the swing hinge member is engaged with the fixed hinge member. After the hinge engagement, the game board can be mounted with a light operating force. In addition, since the game board is urged and supported by the urging force of the pressing member, even if a slightly larger clearance is set at the engaging portion between the fixed hinge member and the swinging hinge member, there is no backlash or the like, which is uncomfortable. It is possible to provide an open / close attachment / detachment mechanism that reduces game vibration and noise and improves long-term reliability.
[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 fixing device according to the present invention in a state where a glass door is opened.
FIG. 2 is a front view of the pachinko machine with the glass door and game board removed (the rear view of the glass door).
FIG. 3 is a perspective view of an upper hinge structure in a state where an opening / closing mechanism is separated.
FIG. 4 is a perspective view of a lower hinge structure in a state where an opening / closing attachment / detachment mechanism is separated.
FIG. 5 is a front view of the upper hinge structure in a state where the game board is closed.
FIG. 6 is a front view of the lower hinge structure in a state where the game board is closed.
FIG. 7 is a plan view (partial plan sectional view) of the upper hinge structure in a state where the game board is closed.
FIG. 8 is a plan view (partial plan sectional view) of the lower hinge structure in a state where the game board is closed.
FIG. 9 is a perspective view of a pressing member and a mounting peripheral portion.
FIG. 10 is a perspective view showing another configuration example of the fixed hinge member, the swing hinge member, and the pressing member.
FIG. 11 is a plan view of the lower hinge structure when the game board is attached and detached.
FIG. 12 is a plan sectional view showing the operation of the pressing member when the game board is attached and detached.
FIG. 13 is a perspective view showing an opening assisting member and a mounting peripheral portion thereof.
FIG. 14 is a plan sectional view showing the action of the opening assisting member when opening and closing the game board.
FIG. 15 is a perspective view showing the main structure of the locking mechanism in the fixing device according to the present invention in an exploded state.
FIG. 16 is a cross-sectional plan view showing the assembled relationship of each member constituting the locking mechanism in an exploded state.
FIG. 17 is a plan sectional view (partial sectional view) showing a relationship between a locking portion of the frame side locking structure and a locking receiving portion of the panel side locking structure in the locking mechanism.
FIG. 18 is a single front view of main members constituting the locking mechanism.
FIG. 19 is a front view showing the frame side locking structure and the board side locking structure in a separated state.
FIG. 20 is a side sectional view showing the relationship between the frame side locking structure and the board side locking structure when the game board is attached and detached.
FIG. 21 is a side sectional view showing a fixed state of the game board by the locking mechanism.
22 is a rear view seen in the direction of arrows F22-F22 in FIG. 21, wherein (a) is a rear view in the locked standby state, and (b) is a rear view in the locked state. .
FIG. 23 is a plan sectional view of the locking mechanism in a locked state.
FIG. 24 is a front view for explaining the tolerance of the locking mechanism.
FIG. 25 is a plan view of the pachinko machine in a state where the glass door is opened.
FIG. 26 is a cross-sectional plan view showing the relationship between the locking mechanism and the forgetting prevention mechanism in an unfixed state.
FIG. 27 is a plan sectional view showing the relationship between the locking mechanism and the forgetting prevention mechanism in a fixed state.
FIG. 28 is a plan view showing the action of the fixing forgetting prevention mechanism.
FIG. 29 is a front view showing an embodiment in which a key engagement hole is provided at the front end of the fixed lever.
[Explanation of symbols]
CA Clearance FS Game board fixing device PA Game area PM Pachinko machine H Thickness dimension of latch receiving part W Opening dimension of hinge groove 1 Outer frame 2 Front frame 3a, 3b Hinge mechanism 4 Locking device 5 Glass door 6 Ball tray 7a , 7b, 7c Hinge mechanism 8 Operation handle 10 Housing frame 12 Fixed hinge housing groove (12h Screw receiving groove)
20 game board 21 decorative board (21r flank)
22 Upper rail decoration (22c taper surface, 22m opening operation part)
23 Lower rail decoration 24 Prize-winning device 25 Symbol display device 27 Out port 30 Back set board 31a Fixed housing portion 31b Notch portion 32a Fixed housing portion 32b Notch portion 33 Holding member attaching portion (33a Substrate housing portion, 33b Arch housing groove)
34 Holding member receiving portion 35 Auxiliary member mounting portion (35a board mounting surface, 35b screw boss)
36 Auxiliary member receiving portion 51 Door frame 52 Glass assembly 53a, 53b Hinge mechanism 54 Glass locking mechanism 100 Opening / detaching mechanism 101 Upper hinge structure 102 Lower hinge structure 111 Upper fixed hinge member (111a fixing portion, 111b support plate portion, 111c hinge pin,
111h Screw insertion hole)
112 lower fixed hinge member (112a fixed part, 112b support plate part, 112c hinge pin,
112h Screw insertion hole)
115 fixed hinge member (115a fixed portion, 115b support plate portion, 115c, 115c ′ hinge pin,
115h Screw insertion hole)
121 Upper swing hinge member (121a fixed part, 121b hinge plate, 121c hinge groove,
121h Screw insertion hole)
122 Lower swing hinge member (122a fixing part, 122b hinge plate, 122c hinge groove,
122h Screw insertion hole)
125 swinging hinge member (125a fixed part, 125b hinge plate, 125c hinge groove)
140 holding member 141 substrate (141h screw insertion hole, 141p pin engagement hole)
142 Arch part 143 Side part 144 Press side part 145 Press part 148 Press side part (148h Tool insertion hole)
150 Opening auxiliary member 151 Substrate (151h screw insertion hole)
152 Arch part 153 Side part 154 Energizing piece part 156 Pan head screw 210 Frame side locking structure 211 Fixed support part (211a Lever accommodating part, 211c fixed support surface, 211p guide pin)
212 bolt support (212a spindle hole, 212c head receiving hole)
213 bolt (213a shaft part, 213b screw part, 213c bolt head part)
215 fixed lever (215a rotating shaft part, 215b female screw part, 215c lever part,
215d pressing part, 215m marker, 215r locking surface,
215s tool engagement hole, 215t key engagement hole)
220 Panel side locking structure 221 Lock receiving portion 225 Lock receiving portion (225a support rib, 225b lock opening, 225c lock receiving surface)
227 Locking receiving cover 250 Forget fixing prevention mechanism 255 Interference protrusion

Claims

A game board (20) provided with a game area on the front side; and a frame member (10) provided with a housing part for detachably containing the game board at a predetermined position, and launching a game ball into the game area In a ball game machine (PM) configured to play games,
A fixed hinge member (111 , 112) having hinge pins (111c, 112c) which are disposed on one side of the frame member on the left and right sides when viewed from the front and extend vertically ;
The game board has hinge grooves (121c, 122c) that are disposed on the left and right sides of the game board and extend in the horizontal direction with a groove width larger than the diameter of the hinge pin and engage with the hinge pin. Swing hinge members (121, 122) that are engaged with the hinge groove to support the game board so as to be swingable with respect to the frame member ;
The frame member is disposed on the left and right sides of the frame member so as to protrude inward of the frame member, and contacts the front side of the game board when the game board is accommodated in the frame member to guide the game board. And a pressing member (140) for pressing the game board to the rear side,
The game board, which is provided on the left and right other side of the frame member in front view and on the other left and right side of the game board and is pressed by the pressing member and positioned at the closed angle position, is fixed to the frame member. A holding mechanism (200) for holding;
The locking mechanism has a game board horizontal direction pressing means (215d) for pressing the game board to the left or right side .
When the hinge groove is engaged with the hinge pin, the game board is accommodated in the frame member, and the game board is fixedly held by the locking mechanism,
The hinge board of the swinging hinge member pressed to the rear surface side by the pressing member is pressed against the hinge pin to house the game board in a state where the forward / backward movement is restricted, and the game board left-right direction The game board is accommodated in a state in which the hinge groove portion of the swing hinge member pressed to the left or right side by the pressing means is pressed against the hinge pin and the movement to the left or right is restricted . A game board opening and closing mechanism characterized by this.