JP4411016B2 - Open set holding mechanism - Google Patents

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JP4411016B2
JP4411016B2 JP2003158181A JP2003158181A JP4411016B2 JP 4411016 B2 JP4411016 B2 JP 4411016B2 JP 2003158181 A JP2003158181 A JP 2003158181A JP 2003158181 A JP2003158181 A JP 2003158181A JP 4411016 B2 JP4411016 B2 JP 4411016B2
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back set
hinge
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set board
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JP2004357857A (en
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恒吉 大山
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Sammy Corp
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【０００１】
【発明の属する技術分野】
本発明は、固定保持用の外枠に前方に横開き開閉可能に組み付けられた前枠と、この前枠に設けられた収容枠に前枠の後方から収容保持される遊技盤と、前枠の後方に組み付けられ遊技提供時に前記遊技盤の後面側を覆って閉止保持される裏セット盤とを備えた遊技機に関し、なお詳細には裏セット盤を前枠後方に開放させた姿勢で保持させる裏セット盤の開放保持機構に関する。
【０００２】
【従来の技術】
上記のような外枠、前枠、遊技盤および裏セット盤を備えた遊技機として、パチンコ機やアレンジボール機、雀球機などが広く知られている。この種の遊技機の代表例とされるパチンコ機では、遊技施設の遊技島に固定される固定保持用の外枠に、開閉搭載用の前枠が前枠ヒンジ機構を介して前方に横開き開閉可能に取り付けられ、この前枠に設けられた収容枠に遊技盤が着脱可能に収容保持されて、遊技盤の前方を覆うガラス窓を通して遊技盤前面の遊技領域を遊技者に臨ませている。なお遊技盤の着脱形態には、遊技盤を前枠の前方から着脱する遊技盤前方着脱と、前枠の後方から着脱する遊技盤後方着脱の二つの形態があり、いずれかの形態が採用されている。遊技盤の後方には、遊技盤から排出される遊技済み球を処理する処理機構や、入賞状態に応じて遊技球を払い出す賞球機構等を備えた裏セット盤（裏機構盤とも称される）が組み付けられ、常には遊技盤の後面側を覆って閉止保持されている。
【０００３】
ここで、遊技盤の後面側には入賞球を検出する入賞検出器や電動入賞具を開閉させる電磁石、大入賞口を開閉させるソレノイドなど各種の電気部品や可動部品があり、裏セット盤の前面側には遊技済み球の処理通路や球抜き通路など複数の球通路が形成されている。このため、上記した遊技盤の収容形態の如何に拘わらず、遊技盤の後面側および裏セット盤の前面側に対して保守点検や球通路の清掃作業を行う必要がある。また遊技盤後方脱着形態のパチンコ機では遊技盤の着脱を前枠の後面側から行う必要がある。このため、裏セット盤は前枠の後方に開閉可能に取り付けられるものが多く、一般的には、前枠ヒンジ機構と同じ一側縁（例えば左側縁）の上下に設けられた前枠側ヒンジ部材および裏セット盤側ヒンジ部材の軸ピンと軸孔との嵌合を利用した裏セット盤ヒンジ機構により着脱および横開き開閉が可能に組み付けられ、前枠を外枠の前方に開放した状態で裏セット盤を前枠の後方に開放して上記各部の保守点検や清掃作業を行えるように構成されている。
【０００４】
ところが、後方に開放された裏セット盤は、一側縁上下の裏セット盤ヒンジ機構により片持ち支持されて自由に揺動し得る状態であり、遊技島に微少な後傾角度姿勢で固定された外枠の設置傾き角度（一般に１度以下の後傾角度）により、辛うじて外枠側に付勢されているにすぎない。このため、遊技盤の後面側の保守作業中に閉鎖方向に揺動してきたり、裏セット盤の前面側の保守作業中に前後に揺動したりして煩わしいという問題があった。そこで、このような問題を解決するため、裏セット盤を開放したときに、開いた裏セット盤を開放状態に保持させる開放保持機構が提案されている（例えば、特許文献１を参照）。
【０００５】
【特許文献１】
特開2002−292063号公報（第8〜10頁、第13，14，17〜19図）
【０００６】
【発明が解決しようとする課題】
確かに、上記特許文献１に開示された裏セット盤の開放保持機構によれば、裏セット盤を開放状態に保持させることができ、従来問題とされた作業性を改善することができる。しかしながら、このような構成の開放保持機構では、裏セット盤を開放保持できる開き角は、前枠ヒンジ機構と裏セット盤ヒンジ機構との位置関係等により、一般に裏セット盤における反ヒンジ側の後面が側枠杆の前面に当接する開き角までに制限される。このため、遊技盤後方の作業領域は裏セット盤の厚さが厚いほど狭くなり、作業領域を拡大して欲しいという要望や、裏セット盤の厚さによらず確保して欲しいという要望があった。一方、前枠をさらに前方に開くことで前枠と裏セット盤との相対角度を増大させ、これにより作業領域を拡大できそうであるが、開放される側に隣接するパチンコ機の作業領域がその分減殺され、また斜めに入り組んだ作業領域となるため、却って作業性を悪化させてしまうという問題があった。
【０００７】
本発明は、上記のような従来技術の問題や開示技術に対する要望等に鑑みてなされたものであり、遊技盤後方の作業領域を拡大して遊技盤の後面各部および裏セット盤の前面各部に対する保守点検や清掃作業などを容易に行える裏セット盤の開放保持機構を提供することを目的とする。
【０００８】
【課題を解決するための手段】
上記目的達成のため、本発明は、固定保持用の外枠と、この外枠に互いの一側縁側に設けられた前枠ヒンジ機構を介して前方に横開き開閉可能に組み付けられた開閉搭載用の前枠と、前面に遊技領域を有し前枠に設けられた収容枠に前枠の後方から収容保持される遊技盤と、前枠の後方に組み付けられ遊技提供時に遊技盤の後面側を覆って閉止保持される裏セット盤とを備えた遊技機に関するものである。そのうえで、この遊技機における裏セット盤は、前枠ヒンジ機構と同じ一側縁側の前枠および裏セット盤に設けられた前枠側ヒンジ部材と裏セット盤側ヒンジ部材とからなる裏セット盤ヒンジ機構により前枠の後方に横開き開閉および開放された状態で前枠方向にスライド移動が可能に組み付けられ、前枠が外枠の前方に開放されかつ裏セット盤が前枠の後方に開放され前枠方向にスライド移動された状態で裏セット盤がさらに外枠方向に開放されたときに、裏セット盤はその回動半径がスライド量に応じて減少するため、外枠は当該裏セット盤の後面側を収容可能に形成される。そして、裏セット盤および外枠には、裏セット盤の後面側が外枠の枠内に収容された開放姿勢で裏セット盤を仮止めする係合連結構造が設けられて裏セット盤の開放保持機構が構成される。
【０００９】
このような構成の開放保持機構では、裏セット盤が裏セット盤ヒンジ機構により前枠の後方に横開き開閉および開放された状態で前枠方向にスライド移動可能に組み付けられる一方、外枠には裏セット盤が前枠方向にスライド移動された状態でさらに外枠方向に開放されたときに、裏セット盤の後面側を収容可能に形成されている。すなわち、裏セット盤は、裏セット盤を開放させて前枠方向にスライド移動させることで揺動端側（反ヒンジ側）の回動半径をスライド移動量に応じて減少させることができ、また外枠はスライド移動によって回動半径が削減された裏セット盤の後面と当接することなく受容して、裏セット盤の後面側を枠内に収容可能に形成されている。そして、後面側が外枠の枠内に収容された裏セット盤は、このようにして大きく開かれた開放姿勢で、例えば前述した開放保持機構に用いられた公知の掛止フック形態の係合連結構造や、後に実施例で詳細に説明する上下かみ合い形態の係合連結構造により仮止めされる。
【００１０】
従って、本発明に係る裏セット盤の開放保持機構によれば、裏セット盤の後面側を外枠の枠内に収容させて開放保持させることで、前枠に対する裏セット盤の開放角度を増大させて遊技盤後方の作業領域を拡大させることができ、これにより遊技盤の後面各部および裏セット盤の前面各部に対する保守点検や清掃作業、遊技盤の着脱作業などを容易に行うことができる。
【００１１】
【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添付図面を参照しながら説明する。本発明を適用した遊技機の一例として、図１にパチンコ機ＰＭの正面図を、図２にパチンコ機ＰＭの背面図を、図３に外枠を取り外して裏セット盤を開放した状態におけるパチンコ機ＰＭの背面図を示しており、まずこれらの図面を参照してパチンコ機ＰＭの全体概要について説明する。
【００１２】
パチンコ機ＰＭは、外郭方形枠サイズに構成された固定保持用の外枠１０の前面側に、この外枠１０の前側開口面域に合わせた方形枠サイズに構成された開閉搭載用の前枠２０が互いの左側縁上下に配設された前枠ヒンジ機構３（３Ｕ，３Ｌ）で前方に横開き開閉および着脱が可能に取り付けられ、正面右側に設けられた施錠装置４を利用して常には外枠１０と係合された閉鎖状態に保持される。外枠１０は木材や樹脂材等で成形加工された上下の枠板１１，１４および左右の枠板１２，１３を直角に枠組み連結すると共に、各隅角部に補強金具を固定して構成される。
【００１３】
前枠２０の前面上部には、前枠２０の前側面域に合わせた方形状のガラス扉５および上球皿６が前方に横開き開閉および着脱可能に取り付けられ、その下方には遊技球を貯留する下球皿７および遊技球の発射操作を行う発射ハンドル８が取り付けられている。一方、前枠２０の後面側上部には、ガラス扉５の背後に位置して遊技盤３０を収容保持する収容枠２１が設けられている。なお、収容枠には遊技盤３０を前枠２０の前面側から収容する遊技盤前方着脱タイプの収容枠と後面側から収容する遊技盤後方着脱タイプの収容枠があり、また収容枠２１を前枠２０に一体に形成したタイプと別体で形成したタイプがあるが、本実施例では遊技盤３０を前枠２０の後面側から収容する遊技盤後方着脱形態の収容枠２１を前枠２０に一体成型したタイプを示す。
【００１４】
遊技盤３０は、基板となる化粧板（ベニヤとも称される）３１の前面側に内外の案内レールに囲まれて略円形の遊技領域ＰＡが区画形成され、その内側に多数本の遊技釘や各種入賞具３４、画像表示装置３５等が所定のゲージ設定に基づいて配設されている。遊技領域ＰＡの下端にはこの領域を入賞せずに落下した遊技球を化粧板３１の裏面側に排出するアウト口３７が設けられている。
【００１５】
遊技盤３０は、収容枠２１および遊技盤３０の背面視左側の上下に設けられた遊技盤ヒンジ機構５０（５０Ｕ，５０Ｌ）により前枠２０の後方に横開き開閉および着脱が可能に支持され、収容枠２１の周辺各部に設けられた複数の閉鎖クランプ２３，２３′により収容枠２１に収容された閉鎖状態で係止保持され、常には遊技盤前面の遊技領域ＰＡをガラス扉５を通して遊技者に臨ませている。前枠２０の後面側下部には、発射ハンドル８の回動操作に基づいて遊技球を発射する遊技球発射装置９が設けられている。
【００１６】
遊技盤３０の後方に位置して裏セット盤４０が配設される。裏セット盤４０には、上面開放の箱状に形成されて遊技球を貯留する球貯留タンク４１、球貯留タンク４１から供給された遊技球を整列させて流下させるタンクレール４２、整列待機された遊技球を所定の入賞状態に基づいて遊技球を払い出す球払出装置４４、球払出装置から払い出された遊技球を上下の球皿６，７に導く球払出通路４５などの賞球機構、および遊技盤３０から裏面側に排出されたアウト球およびセーフ球を遊技施設側の回収バケットに流下させる遊技済み球排出通路４６が設けられている。また裏セット盤４０の後面側には電源基盤や主制御基板、払出制御基板などの各種回路基盤が取り付けられ、これらの回路基板と電気・電子部品とが配線接続されて遊技可能に構成される。
【００１７】
裏セット盤４０は、前枠２０および裏セット盤４０の背面視右側の上下に設けられた裏セット盤ヒンジ機構６０（６０Ｕ，６０Ｌ）により前枠２０の後方に横開き開閉および着脱が可能に取り付けられ、裏セット盤４０の周縁各部に設けられた複数のロックレバー２５，２５…を利用して常には遊技盤３０の後面側を覆って閉鎖保持される。
【００１８】
さて、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３０は、収容枠２１および遊技盤３０の背面視左側の上下に設けられた遊技盤ヒンジ機構５０によって前枠２０の後方に横開き開閉および着脱可能に支持されており、まずこの遊技盤ヒンジ機構５０について、図４〜図８を加えて参照しながら詳細に説明する。
【００１９】
ここで、図４は後述する開放保持機構により裏セット盤４０を開放保持した状態を示すパチンコ機ＰＭの平面図、図５は収容枠２１から遊技盤３０を取り外した状態で示す遊技盤ヒンジ機構５０の斜視図、図６は収容枠２１に遊技盤３０を収容させた状態の遊技盤ヒンジ機構５０の背面図、図７は上方のヒンジ機構におけるヒンジピンとヒンジ溝との係合状態を主として示す側断面図、図８は収容枠側ヒンジ金具に遊技盤側ヒンジ金具を係脱させるときの作用を主として示す平面図である。なお、以降の説明では、各機構を前枠２０の後方から見た状態を主として説明するため、図２および図３に示した背面視における左右方向をもって左右と称し説明する。
【００２０】
遊技盤ヒンジ機構５０は、上下一対のヒンジ機構５０Ｕ，５０Ｌからなり、それぞれ収容枠２１の左側縁の内側に設けられた収容枠側ヒンジ金具５１，５１、および化粧板３１の外周部に設けられた遊技盤側ヒンジ金具５２，５２のヒンジピン５１ｃ，５１ｃとヒンジ溝５２ｃ，５２ｃとの係脱により水平方向から着脱が可能、および係合状態で揺動開閉が可能なヒンジ機構である。
【００２１】
ここで、収容枠側ヒンジ金具５１は、上下に延びる帯板状の固定フランジ部５１ａと、この固定フランジ部の下部が直角に折り曲げられて後方に水平に延びるヒンジプレート部５１ｂとを有し、ヒンジプレート部５１ｂには、上方の収容枠ヒンジ金具では下方に向けて、下方の収容枠側ヒンジ金具では上方に向けて、相互に対向するようにヒンジピン５１ｃが突出してカシメ固着されている。固定フランジ部５１ａには、収容枠２１のヒンジ金具取付部に突出成形された位置決め突起５３ｄと嵌脱可能な位置決めピン孔５１ｄが形成されるとともに、その左右にサラ穴形態のネジ挿通孔が形成されている。
【００２２】
収容枠２１の左側縁側の上下には、上下の収容枠側ヒンジ金具５１，５１を止着するヒンジ金具取付部が形成されている。このうち、上方のヒンジ金具取付部では、段付き軸状に形成され位置決めピン穴５１ｄと嵌合して収容枠側ヒンジ金具５１を位置決め支持する位置決め突起５３ｄが前枠２０の前面側から後方に突出成形されるとともに、その左右には収容枠側ヒンジ金具のネジ挿通孔と位置整合し軸心にネジ受容孔を有する円筒状のネジボス５３ｂが突出成型されている。また、下方のヒンジ金具取付部では、支持面および前方の壁面が収容枠側ヒンジ金具５１の板厚に合わせて凹状に成型されるとともに、当該前方の壁面に位置決めピン穴５１ｄと嵌合して収容枠側ヒンジ金具５１を位置決めする位置決め突起５３ｄおよび収容枠側ヒンジ金具のネジ挿通孔と位置整合するネジ受容孔が形成されている。
【００２３】
収容枠側ヒンジ金具５１は、例えば板厚1.6mm程度の冷間圧延鋼板をプレス成型等により図示する所定形状に打ち抜きおよび曲げ成形し、ヒンジピン５１ｃをカシメ固着した後、ユニクロメッキ等の所要の表面処理を施して形成される。上下の収容枠側ヒンジ金具５１は、固定フランジ部５１ａに形成されたピン穴５１ｄをヒンジ金具取付部の位置決め突起５３ｄに嵌合させて位置決めし、左右のネジ挿通孔にサラ小ネジ５７を挿通させて前枠側のネジ受容孔に締め込むことにより、上下それぞれの設定位置に固定される。そして、このように収容枠側ヒンジ金具５１，５１が収容枠２１の上下設定位置に取着されると、上下のヒンジプレート部５１ｂ，５１ｂが所定間隔を隔てて上下平行に配設され、これらのヒンジプレート部から突出するヒンジピン５１ｃ，５１ｃが相対向して同一軸上に配設される。
【００２４】
一方、化粧板３１の外周部上下に取り付けられる遊技盤側ヒンジ金具５２，５２は、ともに側面視Ｌ字状をなし、これら上下の遊技盤側ヒンジ金具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。遊技盤側ヒンジ金具５２は、化粧板３１の背面に固定される固定フランジ部５２ａと、この固定フランジ部５２ａの上部または下部が直角に折り曲げられて化粧板３１の外周面と平行に延びるヒンジプレート５２ｂ、このヒンジプレート５２ｂに左右方向に延びて形成されたヒンジ溝５２ｃ、固定フランジ部５２ａに穿設されたネジ挿通孔などからなり、収容枠側ヒンジ金具５１と同様の鋼板を同様の加工手段により加工成形して形成される。
【００２５】
固定フランジ部５２ａおよびヒンジプレート部５２ｂは、遊技盤側ヒンジ金具５２が化粧板３１にネジ固定された取付状態において、平面視、化粧板３１から突出しないように形成されている。具体的には、遊技盤側ヒンジ金具５２の前後方向の外形寸法が化粧板３１の板厚と同一またはこれより幾分小さめに形成され、遊技盤側ヒンジ金具５２の前端角部には化粧板３１の前端角部と同様の円弧状の逃げ面５２ｒが形成されて、遊技盤側ヒンジ金具５２の取付状態において化粧板３１から前後および左右に突出しないようになっている。
【００２６】
ヒンジ溝５２ｃは、化粧板３１の左側面と整合して配設されるヒンジプレート部５２ｂの左端から化粧板３１の盤面に沿って内側に延びる左端開放のＵ字溝状をなし、その溝幅は、左端の開口部でヒンジピン５１ｃの直径よりも幾分大きく右端の軸受部でヒンジピン５１ｃの外径と同一半径の円弧状に形成されている。
【００２７】
一方、遊技盤３０の左側縁側の上下には、遊技盤側ヒンジ金具５２を収容する金具収容部３２が形成されている。すなわち、遊技盤の裏面には、遊技盤側ヒンジ金具の固定フランジ部５２ａを収容する固定収容部３２ａが形成され、遊技盤３０の外周角部には遊技盤側ヒンジ金具のヒンジプレート部５２ｂを収容するプレート収容部３２ｂが切り欠き成形されている。
【００２８】
このうち固定収容部３２ａは、遊技盤側ヒンジ金具５２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、固定フランジ部５２ａの形状に合わせて化粧板３１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３２ａに固定フランジ部５２ａをネジ固定したときに、固定フランジ部５２ａを収容して遊技盤側ヒンジ金具５２が化粧板３１の裏面から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３１の裏面側に固定収容部３２ａを設け、盤面と直交方向にねじ止めすることにより、積層合板の積層方向と直交方向にネジを打ち込んで遊技盤側ヒンジ金具５２を強固に固定することができる。なお、図示するナベ頭形態のネジ５８に代えてサラ頭形態のネジを用いることで化粧板３１の裏面側への突出量をさらに低減させることも可能である。
【００２９】
上下のプレート収容部３２ｂは、ヒンジプレート部５２ｂが配設される化粧板３１の上下の外周部を、上下ヒンジピン５１ｃの突出高さよりも幾分大きめの切り込み深さでルータ加工することにより形成され、遊技盤ヒンジ金具５２を配置したときにヒンジプレート部５２ｂをこのプレート収容部３２ｂ内に収容可能に構成されている。
【００３０】
遊技盤側ヒンジ金具５２は、ヒンジプレート部５２ｂの左端角部を化粧板３１の左端角部（遊技盤の外形輪郭線の交点）に合わせ、上下それぞれのヒンジプレート部５２ｂを化粧板３１の上面または下面に合わせて配設し、固定フランジ部５２ａの裏面側からネジ５８を固定収容部３２ａにねじ込むことにより、遊技盤３０の左角部上下に固定される。そしてこのように遊技盤側ヒンジ金具５２が取り付けられると、遊技盤側ヒンジ金具５２の固定フランジ部５２ａが固定収容部３２ａに収容され、ヒンジプレート部５２ｂがプレート収容部３２ｂに収容されて、遊技盤ヒンジ金具５２が遊技盤３０から前後および外周に突出しないように配設される。またヒンジプレート部５２ｂとプレート収容部３２ｂの切り欠き面との間に、ヒンジピン５１ｃの頭部を受容可能なピン収容空間が形成される。
【００３１】
こうして上下の遊技盤側ヒンジ金具５２，５２が化粧板３１に取着されると、上下のヒンジプレート部５２ｂ，５２ｂは、これらの外面間隔が上下の収容枠側ヒンジ金具におけるヒンジプレート部５１ｂ，５１ｂ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、上下のヒンジ溝５２ｃ，５２ｃが平面視において重なって配設される。
【００３２】
そして、このようにして上下の収容枠側ヒンジ金具５１，５１が収容枠２１の左側縁の内側に取り付けられ、上下の遊技盤側ヒンジ金具５２，５２が化粧板３１の外周部に取り付けられると、ヒンジピン５１ｃに対してヒンジ溝５２ｃを溝の延びる方向から係脱させることができ、係合状態では上下のヒンジピン５１ｃ，５１ｃが形成する揺動軸まわりに相対揺動させることができる。
【００３３】
このため、図８に実線および二点鎖線で示すように、収容枠２１に対して浅い相対角度位置から、収容枠２１に対してほぼ直交する相対角度位置までの広い角度範囲内の任意位置から遊技盤３０を挿抜して収容枠側ヒンジ金具５１と遊技盤側ヒンジ金具５２とを係脱させることができる。また、下側の収容枠側ヒンジ金具が収容枠２１の支持面に沿って配設され、下側の遊技盤側ヒンジ金具が化粧板３１の下面に沿って配設されているため、収容枠側ヒンジ金具５１と遊技盤側ヒンジ金具５２とを係脱させる際に、下側の遊技盤側ヒンジ金具を収容枠側ヒンジ金具近傍の支持面に載置して荷重を支持させた状態で、ヒンジピン５１ｃに対するヒンジ溝５２ｃの位置合わせを行うことができ、あとは収容枠側ヒンジ金具５１に向けて遊技盤３０を水平にスライド移動させることでヒンジピン５１ｃにヒンジ溝５２ｃを係合させることができる。このため、遊技盤３０の荷重を支持したままヒンジピンとピン孔との上下位置合わせを行うような微妙な作業を行う必要がなく、遊技盤３０を容易に装着することができる。
【００３４】
そして、ヒンジピン５１ｃにヒンジ溝５２ｃを係合させた後は、遊技盤３０を収容枠側ヒンジ金具５１の方向に軽く押圧してヒンジピンの軸部とヒンジ溝の軸受部とを係合させ他端側を前後に揺動させることで、上下のヒンジピンを軸心とする揺動軸のまわりに遊技盤３０を回動させて収容枠２１に容易に開閉することができる。
【００３５】
これにより、遊技盤３０が収容枠２１に後方に横開き開閉および着脱可能に収容され、比較的重量の遊技盤であっても収容枠２１の後方から容易に着脱させることができる。また、遊技盤側ヒンジ金具５２が化粧板３１から外周方向に突出しないように配設されるため、遊技盤３０を単体で取り扱う時に周辺部材に引っ掛けて当該周辺部材に損傷を与えたりたり、遊技盤ヒンジ金具５２を変形させてしまうおそれを低減することができる。なお遊技盤３０を揺動閉止させ収容枠２１に収容させた状態では、化粧板３１が収容枠２１の左右の枠壁に挟まれて左右方向に作用する外力に抗するとともに、左右方向に配向されたヒンジ溝５２ｃとヒンジピン５１ｃとの係合によってヒンジ溝５２ｃと直交する前後方向に作用する外力に対しても抗力が高い構成になっている。
【００３６】
以上では、遊技盤側ヒンジ金具５２のヒンジプレート部５２ｂに、化粧板３１の盤面と平行な左右方向にヒンジ溝５２ｃを形成した例を示したが、図９および図１０に示すように、ヒンジプレート部５２ｂに化粧板の盤面と直交する前後方向（あるいはこれらの中間的な斜め方向）にヒンジ溝を形成した遊技盤側ヒンジ金具５２′を用いて遊技盤ヒンジ機構を構成してもよい。
【００３７】
すなわち、この遊技盤ヒンジ機構５０′では、ヒンジ溝５２ｃ′がヒンジプレート部５２ｂの後方から前方に延びる後端開放のＵ字溝状に形成されている。ヒンジプレート部５２ｂにおけるヒンジ溝５２ｃの形成位置は、ヒンジプレート部５２ｂの左端部からヒンジ溝５２ｃ′の中心までの距離が、収容枠２１における前方枠部の支持面からヒンジピン５１ｃの軸心までの距離よりも幾分小さめに設定され、溝幅は後端の開口部でヒンジピン５１ｃの直径よりも幾分大きく前端の軸受部でヒンジピン５１ｃの外径と同一半径の円弧状に形成されている。また、前述したように、下側の収容枠側ヒンジ金具は収容枠２１の支持面に沿って配設され、下側の遊技盤側ヒンジ金具は化粧板３１の下面に沿って配設されている。
【００３８】
このため、収容枠側ヒンジ金具５１と遊技盤側ヒンジ金具５２′とを係脱させる際には、収容枠２１に遊技盤３０をほぼ直交させた配設姿勢として、ヒンジプレート部を収容枠２１の支持面に載置して荷重を支持させ、化粧板３１の側面を収容枠２１の前方枠部に当接させた状態で、遊技盤３０をそのまま左方向に水平にスライド移動させることでヒンジピン５１ｃにヒンジ溝５２を係合させることができる。このため、遊技盤３０の荷重を支持してヒンジピンとピン孔との上下位置合わせを行うような微妙な作業を行う必要がなく、かつヒンジピン５１ｃに対するヒンジ溝５２ｃ′の位置合わせを行う必要もないため、容易に遊技盤３０を装着することができる。
【００３９】
そして、ヒンジピン５１ｃにヒンジ溝５２ｃ′を係合させた後は、遊技盤３０の右辺側を前方に押圧して揺動させることで、ヒンジピン５１ｃとヒンジ溝５２ｃ′との係合状態を確保しつつ上下のヒンジピン５１ｃ，５１ｃを軸とする揺動軸のまわりに遊技盤３０を回動させて収容枠２１に開閉することができる。これにより、遊技盤３０が収容枠２１に後方に横開き開閉および着脱可能に収容され、比較的重量の遊技盤であっても収容枠２１の後方から容易に着脱させることができる。
【００４０】
また、本構成の遊技盤ヒンジ機構では、ヒンジピン５１ｃにヒンジ溝５２ｃ′を係脱させる際の遊技盤３０の角度姿勢に一定の制限（例えば図示した溝形態では収容枠２１に対して遊技盤３０をほぼ直交させた角度姿勢）が生じる一方、一旦ヒンジピン５１ｃにヒンジ溝５２ｃ′を係合させて閉止方向に揺動させると、以降ヒンジピン５１ｃとヒンジ溝５２ｃ′との係合が外れることがない。このため着脱角度位置〜閉止角度位置の間で遊技盤３０を支えることなく自由に揺動開閉し、任意の開放角度位置で保持させることができる。また、遊技盤３０を収容枠２１に閉止させた状態では、前後方向に配向されたヒンジ溝５２ｃ′とヒンジピン５１ｃとの係合によって左右方向に作用する外力に対抗し、またヒンジ溝前端の軸受部とヒンジピン５１ｃとの係合により遊技盤３０の前方から作用する外力に対して抗力が高い構成になっている。
【００４１】
なお、以上では、収容枠側ヒンジ金具５１にヒンジピンを設け、遊技盤側ヒンジ金具５２にヒンジ溝を形成した例を示したが、ヒンジピンとヒンジ溝の配設位置は逆であってもよい。例えば、遊技盤側ヒンジ金具５２に上下内向きに突出するヒンジピンを設けてプレート収容部３２ｂ内に収容させる一方、収容枠側ヒンジ金具５１にヒンジピンと係脱可能なヒンジ溝を形成し、遊技盤側ヒンジ金具５２のヒンジプレート部５２ｂと化粧板３１との間のプレート収容部３２ｂに収容枠側ヒンジ金具のヒンジプレート部５１ｂを進入させて遊技盤側のヒンジピンを収容枠側のヒンジ溝に係合させるように構成することもできる。このような構成によれば、遊技盤側ヒンジ金具が遊技盤の外周方向に突出することがなく、またヒンジプレート部５２ｂに溝を有しないことに加えてヒンジピンがプレート収容部３２ｂ内に配設されるため、外力に対してさらに損傷を受けにくい遊技盤ヒンジ機構を構成することができる。
【００４２】
次に、収容枠２１における遊技盤ヒンジ機構５０（または５０′以下同じ）と対向する右側縁の上下中央部には、上記のようにヒンジ係合され収容枠２１に閉止された遊技盤３０を後方に付勢する開放補助部材５５が付設され、遊技盤３０の着脱をさらに容易に行えるようになっている（図３を参照）。図１１に開放補助部材５５の取付部近傍の斜視図を、図１２に遊技盤３０を開閉する際の開放補助部材５５の作用を示す平断面図を、図１３に開放補助部材５５の取付部近傍の背面図を示す。
【００４３】
開放補助部材５５は、上下所定間隔をおいてネジ挿通孔が穿設された矩形フランジ状の固定部５５ａ、固定部５５ａの左側縁が直角に折り曲げられて前方に延びる第１側辺部５５ｂ、第１側辺部５５ｂの前端側が前方に凸の半円弧状に折り折り返されたアーチ部５５ｃ、アーチ部５５ｃと繋がって第１側辺部と平行に後方に延びる第２側辺部５５ｄ、第２側辺部の後部が第１側辺部と反対側の斜め後方に折り曲げられた付勢片部５５ｅなどからなり、例えば板厚0.5〜１mm程度のステンレス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て形成される。
【００４４】
収容枠２１には、右側方の側枠部が開放補助部材５５の高さ寸法に合わせて切りか欠かれ固定部５５ａを取着する固定支持部２１ａが形成され、その前方にネジを受容するネジボスが上下所定間隔をおいて形成されるとともに、側枠部の内側の壁面が開放補助部材５５の板厚および第１側辺部５５ｂの形状に合わせてザグリ成型され第１側辺受容部２１ｂが設けられている。また化粧板３１の前面を支持する前方枠部には、付勢片部５５ｅを収容枠２１の内側に突出させる切り欠き部２１ｅが形成されている。
【００４５】
開放補助部材５５は、固定部５５ａを固定支持部２１ａに支持させ、固定部に形成されたネジ挿通孔にネジ５９を通してネジボスに螺合締結することで、側枠部の設定位置に固定される。開放補助部材５５がネジ固定されると、第１側辺部５５ｂが側枠部の内側にザグリ成型された第１側辺受容部２１ｂに収容されて側枠部の壁面から内側に突出することなく配設され、アーチ部５５ｃおよび第２側辺部５５ｄが収容枠２１の側枠部と前方枠部との間の溝部に収容され、付勢片部５５ｅが切り欠き部２１ｅから収容枠２１の内側に斜め後方に突出して、その先端側が前後に揺動変位可能に配設される。
【００４６】
ここで、第１側辺部５５ｂおよび第２側辺部５５ｄの外面間隔は、収容枠２１における側枠部と前方枠部との間の溝幅よりも小さく設定されており、付勢片部５５ｅが前方に押圧されたときに、第１側辺部５５ｂから付勢辺部５５ｅの先端に至る各部が弾性変形して弾性力を蓄積する。また、このように第１辺部５５ｂと押圧辺部５５ｅとの間にアーチ部５５ｃを設けることにより、各構成部材の位置制度や形状精度のばらつきの影響を受けにくく、かつ広い範囲に弾性力を蓄積させることで安定した付勢力を発生させることができる。なお、付勢片部５５ｅの先端部は前方に向けて緩いＲ状に形成されており、化粧板３１の前面と滑らかに係合し得るようになっている。
【００４７】
このため、遊技盤ヒンジ機構５０に支持させた遊技盤３０を閉止方向に揺動させると、化粧板３１の前面が前方枠部の支持面と平行になる直前の相対角度位置で、化粧板３１の前面が枠内に斜め後方に突出する付勢片部５５ｅの先端部と滑らかに係合する（図１２中の二点鎖線を参照）。この接触状態から化粧板３１の後面を前方に押圧して遊技盤３０をさらに閉止方向に揺動させると、開放補助部材５５の第１側辺部５５ｂ〜付勢片部５５ｅの先端に至る各部が弾性変形して付勢片部５５ｅの先端側が前方に揺動変位し、化粧板３１の前面が前方枠部に当接する閉鎖角度位置では、付勢片部５５ｅが前方枠部に形成された切り欠き部２１ｅに収容されて前方枠部と化粧板３１との間に挟持されるように配設される（図１２中の実線を参照）。
【００４８】
そして、このように開放補助部材５５を弾性変形させた状態で、収容枠２１の周辺各部に設けられた閉鎖クランプ２３を回動操作し、クランプレバー２３ａを化粧板３１の背面に係合させることで、遊技盤３０が収容枠２１に収容された閉鎖姿勢で収容保持される。
【００４９】
閉鎖クランプ２３は、化粧板３１と係合する前面側に半球状の突起部をエンボス成型したクランプレバー２３ａ、前枠２０に後方に突出して植設されクランプレバーを鉛直面内に回動自在に支持する支軸２３ｂ、支軸２３ｂに支持されたクランプレバー２３ａを前方に付勢するコイルバネ２３ｃ、支軸後端に螺着されてコイルバネ２３ｃを圧縮保持させる袋ナット２３ｄなどにより構成される。
【００５０】
この閉鎖クランプ２３では、レバー側部に曲げ起こされた指掛け部を利用してクランプレバー２３ａを回動操作することにより、クランプレバー２３ａを化粧板３１の後面に係脱させ、コイルバネ２３ｃの弾性を利用して化粧板３１の後面を弾性的に押圧し、化粧板３１の板厚のばらつきに拘わらず遊技盤３０の固定を行えるようになっている。本実施例ではこのような閉鎖クランプ２３を、遊技盤ヒンジ機構５０が設けられた左側縁側に１箇所、開放補助機構５５が設けられた右側縁側の上下に２箇所設け、さらに収容枠２１の下部中央にコイルバネを有しない形態の閉鎖クランプ２３′を１箇所設けた例を示している。
【００５１】
一方、上記のように収容枠２１に閉鎖姿勢で収容保持された遊技盤３０の閉鎖クランプ２３を解放方向に回動操作して閉止を解除し、化粧板３１を前方に押圧する押圧力を解放すると、開放補助部材５５の各部に蓄えられていた弾性力により開放補助部材５５が弾性変形前の形状に自己復帰し、付勢片部５５ｅの先端部が化粧板３１の前面を後方に押圧して遊技盤３０を開放方向に揺動させる。これにより、化粧板３１の右辺側が収容枠２１から浮き上がり、右側面に指掛け可能に配設される。このため、作業者は浮き上がった化粧板３１の右側面に指を掛けて容易に遊技盤３０を揺動開放させることができ、遊技盤３０を適宜な開放角度位置に開放させて脱着作業容易な部位を把持し遊技盤３０を取り外すことができる。
【００５２】
なお、実施例では、開放補助部材５５を収容枠２１の右側縁中央部に一箇所設けた例を示したが、遊技盤ヒンジ機構５０の揺動軸から離れた位置に配設するものであればよく、例えば右側縁の上方もしくは下方に一箇所設け、あるいは上下に複数箇所設け、または上下の枠部に設ける構成としてもよい。
【００５３】
また、閉鎖クランプは、図１４および図１５に示すような閉鎖クランプ２４を用いることもできる。この閉鎖クランプ２４は、先端側が円弧状に曲げ成形され基端側に円筒状のカラーがカシメ固着されたクランププレート２４ａと、クランププレート２４ａのカラーを通して前枠側のネジブッシュに螺合されるボルト２４ｄを主体として構成される。この閉鎖クランプ２４では、ボルト２４ｄを緩めてクランププレート２４ａを回動させ、化粧板３１の背面に係脱させてボルト２４ｄを締め込むことにより、クランププレート２４ａの弾性を利用して化粧板３１の背面を弾性的に押圧し、板厚のばらつき等に拘わらず遊技盤３０の固定を行えるようになっている。また、本構成の閉鎖クランプ２４によれば、機構構成を簡明化してローコストな閉鎖機構を提供することができる。
【００５４】
さて、以上では遊技盤３０の着脱について説明してきたが、パチンコ機ＰＭには遊技盤３０の着脱作業をより容易に行えるように、裏セット盤４０を開放姿勢に保持させる開放保持機構が設けられている。この開放保持機構は、前枠２０および裏セット盤４０の互いの右側縁側に設けられて裏セット盤４０を前枠２の後方に横開き開閉および着脱可能に支持する裏セット盤ヒンジ機構６０と、裏セット盤４０が前枠２０の後方に開放された状態で、裏セット盤を開放姿勢に係止保持する係合連結構造７０とを有して構成される。以下では、まず図１６〜図２１の各図を参照して裏セット盤ヒンジ機構６０について説明し、続いて図２２〜図２７を参照して係合連結構造７０について説明する。
【００５５】
ここで、予め図１６〜図２１の各図について概要説明すると、図１６は裏セット盤ヒンジ機構６０（６０Ｕ，６０Ｌ）を斜め後方から見た斜視図、図１７は裏セット盤４０を開放した状態における上方の裏セット盤ヒンジ機構６０Ｕの背面図、図１８は裏セット盤４０を閉鎖した状態における裏セット盤ヒンジ機構６０の背面図、図１９は裏セット盤４０を閉鎖した状態における裏セット盤ヒンジ機構６０の平面図、図２０は裏セット盤４０を開放して前枠方向にスライドさせた状態における裏セット盤ヒンジ機構６０の平面図、図２１(ａ)(ｂ)はそれぞれ図１９および図２０における裏セット盤ヒンジ機構６０の位置状態を拡大して示す平面図である。
【００５６】
裏セット盤ヒンジ機構６０は上下一対の上下のヒンジ機構６０Ｕ，６０Ｌからなり、各ヒンジ機構６０Ｕ，６０Ｌは、それぞれ前枠２０の後面側にネジ固定された前枠側ヒンジ金具６１，６１と、裏セット盤３０の前面側にネジ固定された裏セット盤側ヒンジ金具６２，６２とからなり、全体としては、前枠側ヒンジ金具６１と裏セット盤側ヒンジ金具６２との嵌合によるヒンジ機構である。
【００５７】
前枠側ヒンジ金具６１は、上下に延びる帯板状の固定フランジ部６１ａと、この固定フランジ部の下部が直角に折り曲げられて後方に水平に延びるヒンジプレート部６１ｂとを有し、ヒンジプレート部６１ｂには上方に突出して先端テーパ状の軸ピン６１ｃがカシメ固着されている。固定フランジ部６１ａには、前枠２０のヒンジ金具取付部に後方に突出成形された位置決め突起６３ｄと嵌脱可能な位置決めピン孔６１ｄが形成されるとともに、その上下にサラ穴形態のネジ挿通孔が形成されている。
【００５８】
前枠側ヒンジ金具６１は、例えば板厚2.3mm程度の冷間圧延鋼板をプレス成型等により図示する所定形状に打ち抜きおよび曲げ成形し、軸ピン６１ｃをヒンジプレート部６１ｂにカシメ固着した後、ユニクロメッキ等の所要の表面処理を施して形成される。そして、固定フランジ部６１ａに形成された位置決めピン穴６１ｄをヒンジ金具取付部の位置決め突起６３ｄに嵌合させて位置決めし、上下のネジ挿通孔にサラ小ネジ６８を挿通させて前枠側のネジ受容孔に締め込むことにより、前枠２０の上下の設定基準位置に固定される。
【００５９】
一方、裏セット盤側ヒンジ金具６２は、上下に延びる帯板状の固定フランジ部６２ａと、この固定フランジ部６２ａの下部が直角に折り曲げられて前方に水平に延びるヒンジプレート部６２ｂとを有し、ヒンジプレート部６２ｂには軸ピン６１ｃの軸外径よりもわずかに大きめの溝幅で固定フランジ部６２ａの支持面と平行に延びる長孔状のピン係合溝６２ｃが形成されている。裏セット盤３０のヒンジ金具取付部には、固定フランジ部６２ａの外周を取り囲むように係合して裏セット盤側ヒンジ金具６２を位置決めする位置決めリブ６４ａおよびネジを受容する円筒状のネジボス６４ｂが形成される一方、固定フランジ部６２ａにはこのように位置決めされたときに裏セット盤側のネジボスと位置整合するサラ穴形態のネジ挿通孔が形成されている。
【００６０】
裏セット盤側ヒンジ金具６２は、前枠側ヒンジ金具６１と同様に、例えば板厚2.3mm程度の冷間圧延鋼板をプレス成型等により図示する所定形状に打ち抜きおよび曲げ成形した後、ユニクロメッキ等の所要の表面処理を施して形成される。そして、固定フランジ部６２ａを位置決めリブ６４ａに係合させて位置決めしネジ挿通孔にサラ小ネジ６８をねじ込んで締め込むことにより、裏セット盤３０の上下の設定位置に固定される。
【００６１】
そして上下の裏セット盤側ヒンジ金具６２，６２のピン係合溝６２ｃ，６２ｃを各々対応する前枠側ヒンジ金具６１，６１の軸ピン６１ｃ，６１ｃに係合させることで、上下のヒンジ金具が相互に係合連結され、上下のヒンジ機構６０Ｕ，６０Ｌが形成される。ここで、図５に示すように、上下の裏セット盤側ヒンジ金具６２，６２の取着間隔は、上下の前枠側ヒンジ金具６１，６１の取着間隔よりも幾分狭く（下側の裏セット盤側ヒンジ金具６２の取着位置が幾分上方に）設定されている。このため、上下のヒンジ金具を相互連結させる際に、まず上方のヒンジ機構６０Ｕに注目して軸ピン６１ｃにピン係合溝６２ｃを係合させ、次いで下方のヒンジ機構６０Ｌに注目して軸ピン６１ｃにピン係合溝６２ｃを係合させることで、１箇所ずつ容易に係合させることができるようになっている。
【００６２】
こうして、上下の前枠側ヒンジ金具６１，６１と裏セット盤側ヒンジ金具６２，６２とが係合連結されると、裏セット盤４０はこれら上下のヒンジ機構６０Ｕ，６０Ｌにより前枠２０の後面側に横開き開閉可能に支持される。また一方で、このヒンジ機構６０Ｕ，６０Ｌでは、軸ピン６１ｃと係合するピン係合溝６２ｃが長孔状に形成されており、裏セット盤４０はピン係合溝６２ｃの延びる方向にこの溝の有効長さ分だけ移動させることができる。
【００６３】
このため、図１９および図２１(ａ)に示す軸ピン６１ｃとピン係合溝６２ｃとの係合位置（以下、便宜的に「溝先端位置」という）で、裏セット盤４０を任意の開放角度に開閉しまた閉鎖保持させることができるほか、裏セット盤４０を開放させた状態で、裏セット盤４０をヒンジ金具側に押圧して裏セット盤４０を前枠２０の前面方向にスライド移動させ、軸ピン６１ｃに対するピン係合溝６２ｃの係合位置を図２０および図２１(ｂ)に示す係合位置（同様に「溝基端位置」という）に変化させて、裏セット盤４０の揺動半径を低減させた状態で裏セット盤４０を開閉させることもできる。
【００６４】
一方、外枠１０における反ヒンジ側の枠板、すなわち正面右側の右枠板１３には、このように揺動半径が低減された裏セット盤４０の右枠杆４７の揺動軌跡に合わせて、裏セット盤４０を受容するための受容切り欠き部１３ｂが形成されている。
【００６５】
このため、前枠２０を外枠１０の前方に開放し、裏セット盤４０を前枠２０の後方に開いて上下ヒンジ金具の係合位置を溝基端位置に変化させ、裏セット盤４０を外枠１０に向けて開放すると、裏セット盤４０が右枠板１３に当接することなく枠内に進入し、従来、前枠２０を開放させた状態では収容困難とされた裏セット盤４０の大部分を外枠１０の枠内に収容させることができる。
【００６６】
さて、このように開放される裏セット盤４０および外枠１０の反ヒンジ側に、裏セット盤４０が開放された状態で裏セット盤４０を開放姿勢に係止保持する係合連結構造７０が設けられている。この係合連結構造７０は、上下方向にかみ合い係合可能な外枠側の係止部材７１と裏セット盤側の被係止部材７２とを主体として構成される。以下、図２２〜図２５を参照して係合連結構造７０について説明する。
【００６７】
なお、図２２は係合連結構造７０を斜め後方から見た斜視図、図２３は裏セット盤４０を開放保持状態にしたときの球貯留タンク３１の高さ位置から見た係合連結構造７０の平面図、図２４は裏セット盤４０を開放保持状態にしたときの係合連結構造７０の高さ位置の平面断面図、図２５は係合連結構造７０の係合過程を示す側面図である。
【００６８】
この係合連結構造７０における係止部材７１は、図２２および図２４に示すように、ネジ部７１ａ、円盤状のフランジ部７１ｂ、およびネジ部７１ａとフランジ部７１ｂとの間を繋ぐ係合軸部７１ｃを有して、全体として平頭ないしトラス頭の木ネジ状をなし、金属線材を旋削ないし転造して形成される。係止部材７１が取り付けられる受容切り欠き部１３ｂの所定位置には、ネジ部７１ａを導入するための下穴が予め穿設されている。
【００６９】
係止部材７１は、フランジ部７１ｂをチャックして回動させる自動打ち込み機により上記下穴にねじ込まれ、フランジ部７１ｂの座面と受容切り欠き部１３ｂの表面との間に係合軸部７１ｃを視認可能な一定間隔（例えば被係止部材７２の板厚の２〜３倍程度の間隔）をおいた打ち込み高さに固定される。なお、フランジ部７１ｂに六角穴や十字スリ割り等の工具係合部を設けて手動で打ち込むように構成してもよい。
【００７０】
被係止部材７２は、サラ穴形態のネジ挿通孔を有して矩形平板状のベース部７２ａ、ベース部７２ａの右側縁が直角に折り曲げられて後方に突出するフックプレート部７２ｂ、フックプレート部７２ｂに下方に開いて形成された係止溝７２ｃ、フックプレート部７２ｂの後端部と係止溝７２ｃとの間に下向き斜面状に形成されたガイド縁面７２ｄなどからなり、例えば板厚１〜1.6mm程度の冷間圧延鋼板をプレス成型等により図示する形状に打ち抜きおよび曲げ成形し、ユニクロメッキ等の所要の表面処理を施して形成される。
【００７１】
一方、係止部材７１の取着位置と整合する裏セット盤４０の右枠杆４７の後面側には、被係止部材７２の板厚およびベース部７２ａの形状に合わせたザグリ部が形成されるとともに、その後方にネジを受容するネジボス４７ａが一体成型されている。被係止部材７２は、裏セット盤４０の右枠杆４７のザグリ部にベース部７２ａを嵌合させて位置決めし、上下のネジ挿通孔にサラ小ネジ７８を通してネジボス４７ａにねじ込むことで右枠杆４７に固定される。
【００７２】
ここで、係止溝７２ｃの溝幅は、係止部材７１における係合軸部７１ｃの軸径と同一若しくはこれよりわずかに大きめに設定され、また係止溝７２ｃの上端の高さ位置は、係合軸部７１ｃが係止溝７２ｃの上端部と係合したときに、この係合連結構造７０と他側縁側の裏セット盤ヒンジ機構６０とで、裏セット盤４０が左右水平に支持される高さ位置に設定されている。
【００７３】
また前述したように、右枠板１３に形成された受容切り欠き部１３ｂは、上下のヒンジ金具の係合位置を溝基端位置に変位させた状態で、裏セット盤４０を外枠１０方向に開放したときの裏セット盤４０の右枠杆４７の揺動軌跡に合わせて切り欠かれており、上記のように裏セット盤４０を外枠１０の内方に揺動させたときに、被係止部材７２のフックプレート部７２ｂが切り受容欠き部１３ｂの内面に沿うように枠内に進入する。一方、裏セット盤４０を開放した状態では、裏セット盤４０は上下のヒンジ機構６０Ｕ，６０Ｌにより片持ち支持された状態にあり、裏セット盤４０の荷重に伴うヒンジ金具の撓みにより右枠杆４７側がわずかに下傾した状態でフックプレート部７２ｂが枠内に進入する。
【００７４】
このため、裏セット盤４０を外枠１０の内方に揺動させると、被係止部材７２は、図２５(ａ)に示すように、まずフックプレート部の下向きのガイド縁面７２ｄが係合軸部７１ｃの外周面に当接する。そこで、裏セット盤４０を外枠１０の枠内に向けて押圧すると、ガイド縁面７２ｄが係合軸部７１ｃに乗り上げるように係合して滑り、裏セット盤４０の右枠杆側をわずかに上動させながら外枠内に移動する。そして、ガイド縁面７２ｄの端部が係合軸部７１ｃの上端を越えると、今度は係止溝７２ｃの溝面が係合軸部７１ｃと係合し、裏セット盤４０が引き込まれるように揺動して係合軸部７１ｃと係止溝７２ｃの上端部とがかみ合い係合する。
【００７５】
こうして係止部材７１と被係止部材７２とが上下にかみ合い係合すると、係合軸部７１ｃと係止溝７２ｃとの係合によって裏セット盤４０が前後方向に係止され、またフックプレート部７２ｂがフランジ部７１ｂと受容切り欠き部１３ｂとの間に挟持されて左右方向に係止される。これにより、裏セット盤４０は、この裏セット盤４０の大部分が外枠１０の枠内に収容された状態で前後および左右の両方向に移動が規制され、図４に示す開放姿勢に係止保持される。
【００７６】
このため、例えば前述した遊技盤３０の着脱作業の他、遊技盤３０における各種入賞具の調整や入賞検出センサの交換作業などの保守作業、あるいは裏セット盤４０における遊技済み球排出通路４６の清掃作業など裏セット盤前面側の保守作業を、裏セット盤４０が閉鎖方向に揺動してこない安定した開放姿勢で行うことができる。また、本構成の開放保持機構では、裏セット盤の大部分が外枠１０の枠内に収容されて開放保持されるため、遊技盤３０の後面と裏セット盤４０の前面との間に広い作業スペースを確保することができ、上記各作業を余裕を持って容易に行うことができる。
【００７７】
一方、作業終了後に裏セット盤４０の開放姿勢を解除するには、裏セット盤４０の右側部分を軽く持ち上げて被係止部材７２を上動させ、係止溝７２ｃと係合軸部７１ｃとのかみ合い係合を解除させて、裏セット盤４０を手前に引き出せばよい。そして適当な開放角度位置で上下のヒンジ金具を先端側係合位置に変位させて揺動閉止させ、あとはロックレバー２５を回動してロック操作することで裏セット盤４０が閉鎖姿勢に保持される。
【００７８】
従って、以上説明したような開放保持機構を備えたパチンコ機ＰＭでは、裏セット盤４０を外枠１０の内方に押圧することで裏セット盤４０を開放保持させることができ、また、開放姿勢の裏セット盤４０を軽く持ち上げて前方に引き出すことで開放保持状態を解除することができる。このため、裏セット盤４０を開放保持および解除させるために裏セット盤４０と外枠１０との隙間に指を差し入れたりレバー操作したり等の煩雑な操作を行う必要がなく、作業性が良好な開放保持機構を提供することができる。
【００７９】
以上では、上下方向にかみ合い係合可能な外枠側の係止部材と裏セット盤側の被係止部材の構成例として、外枠１０側の係止部材７１に係合軸部７１ｃを設け、裏セット盤４０側の被係止部材７２に係止溝７２ｃを設けて、係止溝７２ｃが移動して係合軸部７１ｃにかみ合い係合する形態を例示したが、これらの軸部と溝部の配設位置関係を逆に構成してもよい。図２６および図２７には、このように軸部と溝部の配設位置を逆にした外枠側の係止部材１７１と裏セット盤４０側の被係止部材１７２とからなる係合連結構造１７０を示しており、以下、両図を参照しながらこの係合連結構造１７０について簡潔に説明する。なお、図２６は図２２に対応して係合連結構造１７０を斜め後方から見た斜視図、図２７は図２５に対応して係合連結構造１７０の係合過程を示す側面図である。また係合連結構造１７０以外の各部の構成は既述したパチンコ機と同様であるため重複説明は省略する。
【００８０】
係止部材１７１は、平面視クランク状に折り曲げられた板状体からなり、右枠板の受容切り欠き部１３ｂにネジ固定される固定脚部１７１ａ、固定脚部１７１ａと平行にオフセット成形されて前方に延びるフックプレート部１７１ｂ、フックプレート部１７１ｂに上方に開いて形成された係止溝１７１ｃ、フックプレート部１７１ｂの前端部と係止溝１７１ｃとの間に上向き斜面状に形成されたガイド縁面１７１ｄなどからなり、例えば板厚１〜1.6mm程度の冷間圧延鋼板をプレス成型等により図示する形状に打ち抜きおよび曲げ成形し、ユニクロメッキ等の所要の表面処理を施して形成される。
【００８１】
係止部材１７１は、固定脚部１７１ａに形成されたネジ挿通孔にネジ１７７を挿通してねじ込むことで受容切り欠き部１３ｂの所定位置にネジ固定され、フックプレート部１７１ｂと受容切り欠き部１３ｂの表面との間に、被係止部材１７２の支軸プレート部１７２ｂを受容可能な間隔（固定脚部とフックプレート部とのオフセット寸法であり、例えば被係止部材１７２の板厚の２〜４倍程度の間隔とされる）が形成される。
【００８２】
被係止部材１７２は、サラ穴形態のネジ挿通孔を有して矩形平板状のベース部１７２ａ、ベース部１７２ａの右側縁が直角に折り曲げられて後方に突出する支軸プレート部１７２ｂ、支軸プレート部１７２ｂに固着されて水平内向きに突出する係合軸部１７２ｃなどからなり、係止部材１７１と同様の金属材を加工成形して係合軸部をカシメ固着し所要の表面処理を施して形成される。裏セット盤の右枠杆４７には、既述した被係止部材７２の取付部と同様にザグリ部およびネジボスが一体成型されており、被係止部材１７２は右枠杆４７に位置決めされてサラ小ネジ７８によりネジ固定される。
【００８３】
ここで、係止溝１７１ｃと係合軸部１７２ｃとの関係では、係止溝１７１ｃの溝幅が係合軸部１７２ｃの軸径と同一若しくはわずかに大きめに設定され、係止溝１７１ｃの下端位置および係合軸部１７２ｃの高さ位置は、係合軸部１７２ｃが係止溝１７１ｃの下端部に係合したときに、係合連結構造１７０と他側縁側の裏セット盤ヒンジ機構６０とで、裏セット盤４０が左右水平に支持される高さ位置に設定されている。
【００８４】
また前述したように、右枠板１３に形成された受容切り欠き部１３ｂは、上下のヒンジ金具を溝基端位置に係合させて裏セット盤４０を揺動させたときの右枠杆４７の揺動軌跡に合わせて切り欠かれており、裏セット盤４０を外枠１０の内方に揺動させたときに、被係止部材１７２の支軸プレート部１７２ｂが受容切り欠き部１３ｂの内面に沿うように枠内に進入する。また、上下のヒンジ機構６０Ｕ，６０Ｌに片持ち支持された裏セット盤４０は、その荷重に伴うヒンジ金具の撓みにより右枠杆４７側がわずかに下傾した状態で支軸プレート部１７２ｂが枠内に進入する。
【００８５】
このため、裏セット盤４０を外枠１０の内方に揺動させると、被係止部材１７２は、図２７(ａ)に示すように、まず支軸プレート部１７２ｂが受容切り欠き部１３ｂの表面とフックプレート部１７１ｂとの間に進入し、支軸プレート部に固着された係合軸部１７２ｃが上向きのガイド縁面１７１ｄに当接する。そこで、裏セット盤４０を外枠１０の枠内に向けて押圧すると、係合軸部１７２ｃがガイド縁面１７１ｄに乗り上げるように係合して滑り、裏セット盤４０の右枠杆側をわずかに上動させながら外枠内に移動する。そして、係合軸部１７２ｃがガイド縁面１７１ｄの上端を越えると、今度は係合軸部１７２ｃが係止溝１７１ｃに落入するように係合し、裏セット盤４０が引き込まれるように揺動して係止溝１７１ｃの下端部に係合軸部１７２ｃがかみ合い係合する。
【００８６】
こうして係止部材１７１と被係止部材１７２とが上下にかみ合い係合すると、係止溝１７１ｃと係合軸部１７２ｃとの係合によって裏セット盤４０が前後方向に係止され、また支軸プレート部１７２ｂがフックプレート部１７１ｂと受容切り欠き部１３ｂとの間に挟持されて左右方向に係止される。これにより、裏セット盤４０は、この裏セット盤４０の大部分が外枠１０の枠内に収容された状態で前後および左右の両方向に移動が規制され、図４に示した開放姿勢に係止保持される。
【００８７】
このため、遊技盤３０の着脱作業や保守作業、裏セット盤４０の前面側の保守作業を、裏セット盤４０が閉鎖方向に揺動してこない安定した開放姿勢で行うことができる。また、裏セット盤４０の大部分が外枠１０の枠内に収容されて開放保持されるため、遊技盤３０の後面と裏セット盤４０の前面との間に広い作業スペースを確保することができ、上記のような各作業を余裕を持って容易に行うことができる。
【００８８】
一方、保守作業を終了して裏セット盤４０の開放姿勢を解除するには、裏セット盤４０の右側部分を軽く持ち上げて被係止部材１７２を上動させ、係合軸部１７２ｃと係止溝１７１ｃとのかみ合い係合を解除させて、裏セット盤４０を手前に引き出せばよい。そして適当な開放角度位置で上下のヒンジ金具を先端側係合位置に変位させて揺動閉止させ、あとはロックレバー２５を回動してロック操作することで裏セット盤４０が閉鎖姿勢に保持される。
【００８９】
従って、以上のような開放保持機構を備えたパチンコ機ＰＭでは、裏セット盤４０を外枠１０の内方に押圧することで裏セット盤４０を開放保持させることができ、また、開放姿勢の裏セット盤４０を軽く持ち上げて前方に引き出すことで開放保持状態を解除することができる。このため、裏セット盤４０を開放保持および解除させるために裏セット盤４０と外枠１０との隙間に指を差し入れたりレバー操作したり等の煩雑な操作を行う必要がなく、作業性が良好な開放保持機構を提供することができる。
【００９０】
なお、以上では、係合連結構造を外枠１０および裏セット盤４０の上下中間部または上部に設けた例を示したが、配設する高さ位置は任意であり、例えば外枠１０および裏セット盤４０の下部に設けてもよい。また実施例では被係止部材が係止部材に乗り上げるように移動して上下にかみ合う形態を例示したが、上下のかみ合い形態は上下逆方向であってもよく、例えばヒンジ金具の弾性や裏セット盤の撓みを利用して被係止部材が係止部材の下側に沈み込んで係合するような形態であってもよい。さらに、遊技盤ヒンジ機構や閉鎖クランプ、係合連結構造などについて複数の実施形態を実施例ごとに説明したが、これらは適宜組み合わせて実施することができる。
【００９１】
【発明の効果】
以上説明したように、本発明では、固定保持用の外枠に一側縁側に設けられた前枠ヒンジ機構を介して前方に横開き開閉可能に組み付けられた前枠と、前枠に設けられた収容枠に前枠の後方から収容保持される遊技盤と、前枠の後方に組み付けられ遊技提供時に遊技盤の後面側を覆って閉止保持される裏セット盤とを備えた遊技機において、裏セット盤は前枠ヒンジ機構と同じ一側縁側の前枠および裏セット盤に設けられた裏セット盤ヒンジ機構により前枠の後方に横開き開閉および開放された状態で前枠方向にスライド移動が可能に組み付けられ、前枠が外枠の前方に開放されかつ裏セット盤が前枠の後方に開放され前枠方向にスライド移動された状態で裏セット盤がさらに外枠方向に開放されたときに、裏セット盤はその回動半径がスライド量に応じて減少するため、外枠は当該裏セット盤の後面側を収容可能に形成される。そして、裏セット盤および外枠には裏セット盤の後面側が外枠の枠内に収容された開放姿勢で裏セット盤を仮止めする係合連結構造が設けられて裏セット盤の開放保持機構が構成される。
【００９２】
このような構成の開放保持機構では、裏セット盤を開放させて前枠方向にスライド移動させることで揺動端側の回動半径をスライド移動量に応じて減少させることができ、外枠はスライド移動によって回動半径が削減された裏セット盤の後面と当接することなく受容して、裏セット盤の後面側を枠内に収容可能に形成される。そして、後面側が外枠の枠内に収容された裏セット盤は、大きく開かれた開放姿勢で係合連結構造により仮止めされる。従って、本発明に係る裏セット盤の開放保持機構によれば、裏セット盤の後面側を外枠の枠内に収容させて開放保持させることで、前枠に対する裏セット盤の開放角度を増大させて遊技盤後方の作業領域を拡大させることができ、これにより遊技盤の着脱作業や遊技盤の後面各部および裏セット盤の前面各部に対する保守作業等を容易に行うことができる。
【図面の簡単な説明】
【図１】本発明を適用した遊技機の一例として示すパチンコ機の正面図である。
【図２】上記パチンコ機の背面図である。
【図３】外枠を取り外し裏セット盤を開放した状態におけるパチンコ機の背面図である。
【図４】開放保持機構により裏セット盤を開放保持した状態のパチンコ機の平面図である。
【図５】収容枠から遊技盤を取り外した状態で示す遊技盤ヒンジ機構の斜視図である。
【図６】収容枠に遊技盤を収容させた状態の遊技盤ヒンジ機構の背面図である。
【図７】上方のヒンジ機構におけるヒンジピンとヒンジ溝との係合状態を主として示す側断面図である。
【図８】収容枠側ヒンジ金具に遊技盤側ヒンジ金具を係脱させるときの作用を主として示す平面図である。
【図９】遊技盤ヒンジ機構の他の構成例を示す斜視図である。
【図１０】上記他の構成例の遊技盤ヒンジ機構における収容枠側ヒンジ金具に遊技盤側ヒンジ金具を係脱させるときの作用を主として示す平面図である。
【図１１】開放補助部材の取付部近傍の斜視図である。
【図１２】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１３】開放補助部材の取付部近傍の背面図である。
【図１４】閉鎖クランプの他の構成例を示す斜視図である。
【図１５】上記他の構成例の閉鎖クランプの取付部近傍の平断面図である。
【図１６】裏セット盤ヒンジ機構を斜め後方から見た斜視図である。
【図１７】裏セット盤を開放した状態における上方の裏セット盤ヒンジ機構の背面図である。
【図１８】裏セット盤を閉鎖した状態における裏セット盤ヒンジ機構の背面図である。
【図１９】裏セット盤を閉鎖した状態における裏セット盤ヒンジ機構の平面図である。
【図２０】裏セット盤を開放して前枠方向にスライドさせた状態における裏セット盤ヒンジ機構の平面図である。
【図２１】図１９および図２０における裏セット盤ヒンジ機構の位置状態を拡大して示す平面図である。
【図２２】開放保持機構における係合連結構造を斜め後方から見た斜視図である。
【図２３】裏セット盤を開放保持状態にしたときの球貯留タンクの高さ位置から見た上記係合連結構造の平面図である。
【図２４】裏セット盤を開放保持状態にしたときの上記係合連結構造の高さ位置の平面断面図である。
【図２５】上記係合連結構造の係合過程を示す側面図である。
【図２６】係合連結構造の他の構成例を示す斜視図である。
【図２７】上記他の構成例の係合連結構造の係合過程を示す側面図である。
【符号の説明】
ＰＡ 遊技領域
ＰＭ パチンコ機
３（３Ｕ，３Ｌ） 前枠ヒンジ機構
４ 施錠装置
５ ガラス扉
６ 上球皿
７ 下球皿
８ 発射ハンドル
９ 遊技球発射装置
１０ 外枠
１１ 上枠板
１２ 左枠板
１３ 右枠板（１３ｂ 受容切り欠き部）
１４ 下枠板
２０ 前枠
２１ 収容枠
（２１ａ 固定支持部、２１ｂ 第１側辺受容部、２１ｅ切り欠き部）
２３，２３′ 閉鎖クランプ
（２３ａ クランプレバー、２３ｂ 支軸、２３ｃ コイルバネ、
２３ｄ 袋ナット）
２４ 閉鎖クランプ
（２４ａ クランププレート、 ２４ｄ ボルト）
２５ ロックレバー
３０ 遊技盤
３１ 化粧板
３２ 金具収容部（３２ａ 固定収容部、３２ｂ プレート収容部）
３４ 入賞具
３５ 画像表示装置
３７ アウト口
４０ 裏セット盤
４１ 球貯留タンク
４２ タンクレール
４４ 球払出装置
４５ 球払出通路
４６ 遊技済み球排出通路
４７ 右枠杆（４７ａ ネジボス）
５０，５０′ （５０Ｕ，５０Ｌ） 遊技盤ヒンジ機構
５１ 収容枠側ヒンジ金具
（５１ａ 固定フランジ部、５１ｂ ヒンジプレート部、５１ｃ ヒンジピン、
５１ｄ 位置決めピン孔）
５２，５２′ 遊技盤側ヒンジ金具
（５２ａ 固定フランジ部、５２ｂ ヒンジプレート部、
５２ｃ，５２ｃ′ ヒンジ溝、５２ｒ 逃げ面）
５３ｂ ネジボス
５３ｄ 位置決め突起
５５ 開放補助部材
（５５ａ 固定部、５５ｂ 第１側辺部、５５ｃ アーチ部、
５５ｄ 第２側辺部、５５ｅ 付勢片部）
５７ サラ小ネジ
５８ ネジ
５９ ネジ
６０（６０Ｕ，６０Ｌ） 裏セット盤ヒンジ機構
６１ 前枠側ヒンジ金具
（６１ａ 固定フランジ部、６１ｂ ヒンジプレート部、６１ｃ 軸ピン、
６１ｄ 位置決めピン孔）
６２ 裏セット盤側ヒンジ金具
（６２ａ 固定フランジ部、６２ｂ ヒンジプレート部、６２ｃ ピン係合溝、）
６３ｄ 位置決め突起
６４ａ 位置決めリブ
６４ｂ ネジボス
６８ サラ小ネジ
７０ 係合連結構造
７１ 係止部材
（７１ａ ネジ部、７１ｂ フランジ部、７１ｃ 係合軸部）
７２ 被係止部材
（７２ａ ベース部、７２ｂ フックプレート部、７２ｃ 係止溝、
７２ｄ ガイド縁面）
７８ サラ小ネジ
１７０係合連結構造
１７１ 係止部材
（１７１ａ 固定脚部、１７１ｂ フックプレート部、１７１ｃ 係止溝、
１７１ｄ ガイド縁面）
１７２ 被係止部材
（１７２ａ ベース部、１７２ｂ 支軸プレート部、１７２ｃ 係合軸部）
１７７ ネジ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a front frame assembled to an outer frame for fixing and holding so as to be openable in a laterally open direction, a game board accommodated and retained from the rear of the front frame in a housing frame provided on the front frame, and a front frame And a back set board that covers and holds the rear side of the game board closed when the game is provided, and more specifically, holds the back set board in a posture that is opened to the rear of the front frame It is related with the open holding mechanism of the back set board to be made.
[0002]
[Prior art]
As gaming machines including the outer frame, the front frame, the game board, and the back set board as described above, pachinko machines, arrange ball machines, sparrow ball machines, and the like are widely known. In a pachinko machine that is a typical example of this type of gaming machine, a front frame for opening and closing is opened to the front side via a front frame hinge mechanism on an outer frame for fixing and holding fixed to a gaming island of a gaming facility. The game board is detachably received and held in a storage frame provided in the front frame so that the game area on the front of the game board faces the player through a glass window covering the front of the game board. . There are two forms of attaching and detaching the game board, namely, attaching and detaching the game board from the front of the front frame, and attaching and detaching the game board from the rear of the front frame, and either form is adopted. ing. Behind the game board is a back set board (also called a back mechanism board) equipped with a processing mechanism for processing game balls discharged from the game board and a prize ball mechanism for paying out game balls according to the winning state. And is always kept closed covering the rear side of the game board.
[0003]
Here, on the back side of the game board, there are various electric parts and movable parts such as a prize detector that detects the winning ball, an electromagnet that opens and closes the electric prize tool, and a solenoid that opens and closes the big prize opening. On the side, a plurality of ball passages such as a processed ball processing passage and a ball removal passage are formed. For this reason, it is necessary to perform maintenance and inspection and cleaning of the ball path on the rear side of the game board and the front side of the back set board regardless of the above-described storage form of the game board. Moreover, in the pachinko machine of the game board rear attachment / detachment form, it is necessary to attach and detach the game board from the rear side of the front frame. For this reason, the back set panel is often attached to the rear of the front frame so that it can be opened and closed. Generally, the front frame side hinge provided above and below the same side edge as the front frame hinge mechanism (for example, the left side edge). The back set board hinge mechanism that uses the fitting of the shaft pin and the shaft hole of the member and the back set board side hinge member is assembled so that it can be attached and detached and opened laterally, and the front frame is opened in front of the outer frame. The set panel is opened to the rear of the front frame so that maintenance and inspection of each part can be performed.
[0004]
However, the back set board opened to the rear is in a state where it can be supported by the back set board hinge mechanism on the upper and lower sides and can swing freely, and is fixed to the amusement island with a slight back tilt angle posture. The outer frame is merely urged to the outer frame side by the installation inclination angle of the outer frame (generally a rearward inclination angle of 1 degree or less). For this reason, there has been a problem that it is troublesome because it swings in the closing direction during maintenance work on the rear side of the game board or swings back and forth during maintenance work on the front side of the back set board. Therefore, in order to solve such a problem, an open holding mechanism for holding the opened back set board in an open state when the back set board is opened has been proposed (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
JP 2002-292063 A (pages 8-10, 13, 14, 17-19)
[0006]
[Problems to be solved by the invention]
Certainly, according to the open set holding mechanism of the back set board disclosed in the above-mentioned Patent Document 1, the back set board can be held in an open state, and the workability that has been considered as a problem can be improved. However, in the open holding mechanism having such a configuration, the opening angle at which the back set panel can be held open generally depends on the positional relationship between the front frame hinge mechanism and the back set panel hinge mechanism. Is limited to an opening angle that abuts against the front surface of the side frame rod. For this reason, the work area behind the game board becomes narrower as the thickness of the back set board increases, and there is a request that the work area be expanded or that the work area be secured regardless of the thickness of the back set board. It was. On the other hand, by opening the front frame further forward, the relative angle between the front frame and the back set board is increased, so that the work area can be expanded, but the work area of the pachinko machine adjacent to the opened side is There is a problem that the workability is worsened because the work area is diminished and the work area is slanted.
[0007]
The present invention has been made in view of the above-described problems of the prior art and requests for the disclosed technology, etc., and expands the work area behind the game board to each part of the rear surface of the game board and each part of the front surface of the back set board. It is an object of the present invention to provide an open holding mechanism for a back set panel that can easily perform maintenance inspections and cleaning operations.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is an open / close mount that is assembled so that it can be opened and closed laterally forward through an outer frame for fixing and holding, and a front frame hinge mechanism provided on one outer edge side of the outer frame. Front frame, a game board that has a game area on the front and is accommodated and held from the rear of the front frame in a storage frame provided on the front frame, and a rear side of the game board that is assembled to the rear of the front frame when the game is provided The present invention relates to a gaming machine provided with a back set board that covers and is held closed. In addition, the back set board in this gaming machine is a back set board hinge comprising a front frame on the same side as the front frame hinge mechanism and a front frame side hinge member and a back set board side hinge member provided on the back set board. The mechanism is assembled so that it can slide and move in the direction of the front frame in a state of being opened and closed and opened laterally behind the front frame, The front frame is opened in front of the outer frame and When the back set board is further opened in the outer frame direction with the back set board opened to the rear of the front frame and slid in the front frame direction, Since the turning radius of the back set panel decreases according to the slide amount, the outer frame It is formed so that the rear side of the back set board can be accommodated. The back set board and the outer frame are provided with an engagement connection structure for temporarily fixing the back set board in an open posture in which the rear side of the back set board is accommodated in the frame of the outer frame, so that the back set board is held open. The mechanism is configured.
[0009]
In the open holding mechanism having such a configuration, the back set board is assembled to be slidable in the front frame direction while being opened / closed and opened to the rear of the front frame by the back set board hinge mechanism, while being attached to the outer frame. When the rear set board is slid in the front frame direction and further opened in the outer frame direction, the rear side of the back set board is formed so as to be accommodated. That is, the back set board can reduce the turning radius on the swing end side (the anti-hinge side) according to the slide movement amount by opening the back set board and sliding it in the front frame direction. The outer frame is formed so as to be received without contacting the rear surface of the back set plate whose turning radius is reduced by sliding movement, and the rear surface side of the back set plate can be accommodated in the frame. Then, the back set board whose rear side is accommodated in the frame of the outer frame is in such a wide open position, for example, an engagement connection in the form of a known latching hook used in the above-described open holding mechanism. It is temporarily fixed by the structure and the engagement connecting structure of the upper and lower meshing form which will be described later in detail in the embodiments.
[0010]
Therefore, according to the open holding mechanism of the back set board according to the present invention, the open angle of the back set board with respect to the front frame is increased by accommodating the back side of the back set board in the frame of the outer frame and holding it open. Thus, the work area behind the game board can be expanded, thereby making it possible to easily perform maintenance and inspection, cleaning work, and game board attachment / detachment work for each part on the rear surface of the game board and each front part of the back set board.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. As an example of a gaming machine to which the present invention is applied, FIG. 1 is a front view of a pachinko machine PM, FIG. 2 is a rear view of the pachinko machine PM, FIG. 3 is a pachinko machine in a state where an outer frame is removed and a back set board is opened. The rear view of machine PM is shown, First, the whole outline of pachinko machine PM is explained with reference to these drawings.
[0012]
The pachinko machine PM has a front frame for opening and closing mounted on a front surface side of a fixed holding outer frame 10 having an outer rectangular frame size and having a rectangular frame size matched to a front opening surface area of the outer frame 10. 20 is attached to the front frame hinge mechanism 3 (3U, 3L) disposed above and below the left edge of each other so that it can be opened / closed and attached / detached forward, and always using the locking device 4 provided on the right side of the front. Is held in a closed state engaged with the outer frame 10. The outer frame 10 is constructed by connecting upper and lower frame plates 11 and 14 and left and right frame plates 12 and 13 formed of wood or resin material at right angles to each other and fixing reinforcing brackets to each corner. The
[0013]
A rectangular glass door 5 and an upper ball tray 6 that are fitted to the front side area of the front frame 20 are attached to the front upper portion of the front frame 20 so as to be opened and closed laterally and detachable. A lower ball tray 7 to be stored and a launching handle 8 for performing a launching operation of the game ball are attached. On the other hand, an accommodation frame 21 that accommodates and holds the game board 30 is provided behind the glass door 5 at the upper rear side of the front frame 20. The storage frames include a game board front detachable storage frame that stores the game board 30 from the front side of the front frame 20 and a game board rear detachable storage frame that stores the game board 30 from the rear side. There is a type that is formed separately from the type that is integrally formed with the frame 20, but in the present embodiment, the front frame 20 is provided with a storage frame 21 that is detachable from the rear side of the front of the front frame 20. Shows the integrally molded type.
[0014]
The game board 30 has a substantially circular game area PA defined on the front side of a decorative board (also referred to as veneer) 31 serving as a substrate, surrounded by inner and outer guide rails. Various prize-winning tools 34, an image display device 35, and the like are arranged based on predetermined gauge settings. At the lower end of the game area PA, there is provided an out port 37 through which game balls that have fallen without winning this area are discharged to the back side of the decorative board 31.
[0015]
The game board 30 is supported by a game board hinge mechanism 50 (50U, 50L) provided on the upper left and lower sides of the housing frame 21 and the game board 30 so that the game board 30 can be laterally opened / closed and attached / removed behind the front frame 20, A plurality of closing clamps 23, 23 ′ provided around each part of the storage frame 21 are locked and held in the closed state stored in the storage frame 21, and the player always passes the game area PA on the front of the game board through the glass door 5. To face. A game ball launching device 9 that launches a game ball based on a turning operation of the launch handle 8 is provided at the lower part of the rear side of the front frame 20.
[0016]
A back set board 40 is disposed behind the game board 30. On the back set board 40, a ball storage tank 41 that is formed in a box shape with an open top and stores game balls, a tank rail 42 that aligns and flows down game balls supplied from the ball storage tank 41, and waits for alignment. A prize ball mechanism such as a ball payout device 44 for paying out game balls based on a predetermined winning state, a ball payout mechanism 45 for guiding the game balls paid out from the ball payout device to the upper and lower ball dishes 6, 7; A game-completed ball discharge passage 46 is provided for allowing the out ball and the safe ball discharged from the game board 30 to the back side to flow down to the collection bucket on the game facility side. Further, various circuit boards such as a power supply board, a main control board, and a payout control board are attached to the rear side of the back set board 40, and these circuit boards and electric / electronic components are connected by wiring so that they can be played. .
[0017]
The back set board 40 can be opened / closed and opened / removed laterally behind the front frame 20 by a back set board hinge mechanism 60 (60U, 60L) provided on the upper and lower sides of the front frame 20 and the back set board 40 on the right side of the back view. A plurality of lock levers 25, 25... That are attached and provided at the respective peripheral portions of the back set board 40 are always closed and held covering the rear side of the game board 30.
[0018]
Now, in the pachinko machine PM schematically configured as described above, the game board 30 is located behind the front frame 20 by the game board hinge mechanism 50 provided on the upper and lower sides of the left side of the storage frame 21 and the game board 30. The game board hinge mechanism 50 will be described in detail with reference to FIGS. 4 to 8 in addition.
[0019]
4 is a plan view of the pachinko machine PM showing a state in which the back set board 40 is held open by an opening holding mechanism which will be described later, and FIG. 5 is a game board hinge mechanism shown in a state where the game board 30 is removed from the housing frame 21. FIG. 6 is a rear view of the game board hinge mechanism 50 in a state in which the game board 30 is accommodated in the accommodation frame 21, and FIG. 7 mainly shows an engagement state between the hinge pin and the hinge groove in the upper hinge mechanism. FIG. 8 is a side sectional view, and FIG. 8 is a plan view mainly showing an action when the game board side hinge fitting is engaged and disengaged with the housing frame side hinge fitting. In the following description, in order to mainly describe the state in which each mechanism is viewed from the rear of the front frame 20, the left and right directions in the rear view shown in FIGS.
[0020]
The game board hinge mechanism 50 includes a pair of upper and lower hinge mechanisms 50U and 50L, and is provided on the outer periphery of the storage frame side hinge fittings 51 and 51 provided inside the left edge of the storage frame 21 and the decorative board 31, respectively. This is a hinge mechanism that can be detached from the horizontal direction by engaging / disengaging the hinge pins 51c, 51c of the game board side hinge fittings 52, 52 and the hinge grooves 52c, 52c, and that can swing and open in the engaged state.
[0021]
Here, the housing frame side hinge metal fitting 51 has a strip-like fixed flange portion 51a extending vertically, and a hinge plate portion 51b extending horizontally rearward by bending a lower portion of the fixed flange portion at a right angle, Hinge pins 51c protrude and are fixed by caulking to the hinge plate portion 51b so as to face downward in the upper housing frame hinge fitting and upward in the lower housing frame hinge fitting. The fixing flange portion 51a is formed with a positioning projection 53d projectingly formed on the hinge bracket mounting portion of the housing frame 21 and a positioning pin hole 51d that can be fitted and removed, and screw insertion holes in the form of flat holes are formed on the left and right sides thereof. Has been.
[0022]
On the upper and lower sides on the left edge side of the housing frame 21, hinge fitting mounting portions for fastening the upper and lower housing frame side hinge fittings 51, 51 are formed. Among these, in the upper hinge fitting mounting portion, the positioning projection 53d that is formed in a stepped shaft shape and fits with the positioning pin hole 51d to position and support the housing frame side hinge fitting 51 is provided rearward from the front side of the front frame 20. A cylindrical screw boss 53b that is aligned with the screw insertion hole of the housing frame side hinge metal fitting and has a screw receiving hole in the axial center is protruded and molded on the left and right sides. Further, in the lower hinge fitting mounting portion, the support surface and the front wall surface are formed in a concave shape according to the plate thickness of the storage frame side hinge fitting 51, and the positioning pin hole 51d is fitted to the front wall surface. A positioning projection 53d for positioning the storage frame side hinge metal fitting 51 and a screw receiving hole that aligns with a screw insertion hole of the storage frame side hinge metal fitting are formed.
[0023]
The housing frame-side hinge fitting 51 is formed by punching and bending a cold rolled steel plate having a thickness of about 1.6 mm into a predetermined shape as shown in the drawing by press molding or the like, and fixing the hinge pin 51c by caulking, and then performing a required surface such as unichrome plating. Formed by processing. The upper and lower housing frame side hinge fittings 51 are positioned by fitting pin holes 51d formed in the fixing flange portion 51a to the positioning projections 53d of the hinge fitting mounting portion, and the small screw 57 is inserted into the left and right screw insertion holes. By tightening it in the screw receiving hole on the front frame side, the upper and lower positions are fixed. When the storage frame side hinge fittings 51 and 51 are attached to the upper and lower setting positions of the storage frame 21 in this way, the upper and lower hinge plate portions 51b and 51b are arranged vertically in parallel at a predetermined interval. Hinge pins 51c and 51c protruding from the hinge plate portion are arranged on the same axis so as to face each other.
[0024]
On the other hand, the game board side hinge fittings 52, 52 attached to the upper and lower sides of the outer peripheral portion of the decorative board 31 are both L-shaped in a side view, and are set up in the direction perpendicular to the game board between these upper and lower game board side hinge fittings. It is formed symmetrical with respect to the plane (mirror image). The game board-side hinge metal fitting 52 includes a fixed flange portion 52 a fixed to the back surface of the decorative plate 31, and a hinge plate extending in parallel with the outer peripheral surface of the decorative plate 31 by bending the upper or lower portion of the fixed flange portion 52 a at a right angle. 52b, a hinge groove 52c formed extending in the left-right direction on the hinge plate 52b, a screw insertion hole drilled in the fixing flange portion 52a, and the like, and the same steel plate as the housing frame side hinge fitting 51 is processed in the same manner. Is formed by processing.
[0025]
The fixed flange portion 52 a and the hinge plate portion 52 b are formed so as not to protrude from the decorative plate 31 in a plan view when the game board side hinge fitting 52 is screwed to the decorative plate 31. Specifically, the front and rear external dimensions of the game board side hinge fitting 52 are formed to be the same as or slightly smaller than the plate thickness of the decorative board 31, and the decorative board is formed at the front end corner of the game board side hinge fitting 52. An arc-shaped flank 52r similar to the front end corner portion 31 is formed so that it does not protrude forward and backward and left and right from the decorative board 31 when the game board side hinge fitting 52 is attached.
[0026]
The hinge groove 52c has a U-shaped groove with an open left end extending inwardly along the board surface of the decorative plate 31 from the left end of the hinge plate portion 52b disposed in alignment with the left side surface of the decorative plate 31, and its groove width. Is formed in an arc shape having a radius that is slightly larger than the diameter of the hinge pin 51c at the opening at the left end and the same radius as the outer diameter of the hinge pin 51c at the bearing at the right end.
[0027]
On the other hand, on the upper and lower sides of the left side edge side of the game board 30, a metal fitting housing portion 32 for housing the game board-side hinge metal fitting 52 is formed. That is, a fixed housing portion 32a for housing the fixed flange portion 52a of the game board side hinge metal fitting is formed on the back surface of the game board, and the hinge plate portion 52b of the game board side hinge metal fitting is provided at the outer peripheral corner of the game board 30. The plate accommodating portion 32b to be accommodated is notched.
[0028]
Of these, the fixed housing portion 32a has a cutting depth equal to or slightly larger than the board thickness of the game board side hinge fitting 52, and the back surface of the decorative board 31 is router-processed in accordance with the shape of the fixed flange portion 52a. When the fixed flange portion 52a is fixed to the fixed accommodating portion 32a with screws, the fixed flange portion 52a is accommodated so that the game board side hinge fitting 52 does not protrude rearward from the back surface of the decorative board 31. Yes. Further, by providing the fixed housing portion 32a on the back surface side of the decorative board 31 and screwing in the direction orthogonal to the board surface, the game board side hinge fitting 52 is driven by driving the screw in the direction orthogonal to the lamination direction of the laminated plywood. It can be firmly fixed. In addition, it is also possible to further reduce the amount of protrusion of the decorative plate 31 to the back surface side by using a flat head screw instead of the illustrated pan head screw 58.
[0029]
The upper and lower plate accommodating portions 32b are formed by router processing the upper and lower outer peripheral portions of the decorative plate 31 on which the hinge plate portion 52b is disposed with a cut depth somewhat larger than the protruding height of the upper and lower hinge pins 51c. When the game board hinge fitting 52 is disposed, the hinge plate portion 52b can be accommodated in the plate accommodating portion 32b.
[0030]
The game board side hinge metal fitting 52 aligns the left end corner portion of the hinge plate portion 52b with the left end corner portion (intersection point of the outline outline of the game board) of the decorative plate 31, and the upper and lower hinge plate portions 52b are arranged on the upper surface of the decorative plate 31. Or it arrange | positions according to a lower surface, and it fixes to the left corner part upper and lower sides of the game board 30 by screwing the screw 58 in the fixed accommodating part 32a from the back surface side of the fixed flange part 52a. When the game board side hinge fitting 52 is attached in this way, the fixed flange portion 52a of the game board side hinge fitting 52 is accommodated in the fixed accommodation portion 32a, and the hinge plate portion 52b is accommodated in the plate accommodation portion 32b. The board hinge metal fitting 52 is disposed so as not to protrude from the game board 30 to the front and rear and the outer circumference. Further, a pin housing space that can receive the head of the hinge pin 51c is formed between the hinge plate portion 52b and the cut-out surface of the plate housing portion 32b.
[0031]
Thus, when the upper and lower game board side hinge fittings 52 and 52 are attached to the decorative board 31, the upper and lower hinge plate portions 52b and 52b are separated from each other by the hinge plate portions 51b and 51b in the upper and lower housing frame side hinge fittings. The upper and lower hinge grooves 52c and 52c are disposed so as to overlap each other in a plan view with a space slightly smaller than the inner surface space of 51b.
[0032]
When the upper and lower storage frame side hinge fittings 51 and 51 are attached to the inside of the left side edge of the accommodation frame 21 in this way, and the upper and lower game board side hinge fittings 52 and 52 are attached to the outer peripheral portion of the decorative board 31. The hinge groove 52c can be engaged / disengaged with respect to the hinge pin 51c from the direction in which the groove extends, and in the engaged state, the hinge groove 52c can be relatively swung around the swing shaft formed by the upper and lower hinge pins 51c, 51c.
[0033]
Therefore, as shown by a solid line and a two-dot chain line in FIG. 8, from an arbitrary position within a wide angular range from a shallow relative angle position to the storage frame 21 to a relative angle position substantially orthogonal to the storage frame 21. The game board 30 can be inserted and removed, and the housing frame side hinge fitting 51 and the game board side hinge fitting 52 can be engaged and disengaged. Further, since the lower storage frame side hinge fitting is arranged along the support surface of the accommodation frame 21 and the lower game board side hinge fitting is arranged along the lower surface of the decorative board 31, the accommodation frame When the side hinge bracket 51 and the game board side hinge bracket 52 are engaged and disengaged, the lower game board side hinge bracket is placed on the support surface in the vicinity of the housing frame side hinge bracket and the load is supported. The hinge groove 52c can be aligned with the hinge pin 51c, and then the game board 30 can be horizontally slid toward the housing frame side hinge fitting 51 to engage the hinge groove 52c with the hinge pin 51c. . For this reason, it is not necessary to perform a delicate operation such as aligning the hinge pin and the pin hole with the load of the game board 30 supported, and the game board 30 can be easily mounted.
[0034]
After the hinge groove 52c is engaged with the hinge pin 51c, the game board 30 is lightly pressed in the direction of the housing frame-side hinge fitting 51 to engage the shaft portion of the hinge pin and the bearing portion of the hinge groove to the other end. By swinging the side back and forth, the game board 30 can be rotated around a swinging shaft centered on the upper and lower hinge pins, and can be easily opened and closed to the housing frame 21.
[0035]
Thereby, the game board 30 is accommodated in the accommodation frame 21 so that it can be opened / closed / removed laterally rearward, and even a relatively heavy game board can be easily attached / detached from the rear of the accommodation frame 21. Further, since the game board side hinge fitting 52 is arranged so as not to protrude from the decorative board 31 in the outer peripheral direction, when the game board 30 is handled alone, the game board 30 is hooked on the peripheral member to damage the peripheral member, The risk of deforming the panel hinge fitting 52 can be reduced. When the game board 30 is swingably closed and accommodated in the accommodation frame 21, the decorative plate 31 is sandwiched between the left and right frame walls of the accommodation frame 21 and resists external forces acting in the left-right direction and is oriented in the left-right direction. Due to the engagement between the hinge groove 52c and the hinge pin 51c, the structure is highly resistant to an external force acting in the front-rear direction perpendicular to the hinge groove 52c.
[0036]
In the above, an example in which the hinge groove 52c is formed in the left and right direction parallel to the board surface of the decorative board 31 in the hinge plate portion 52b of the game board side hinge fitting 52 has been shown. However, as shown in FIGS. The game board hinge mechanism may be configured by using a game board side hinge fitting 52 'in which a hinge groove is formed in the plate portion 52b in the front-rear direction (or an intermediate oblique direction) orthogonal to the board surface of the decorative board.
[0037]
That is, in this game board hinge mechanism 50 ', the hinge groove 52c' is formed in a U-shaped groove with an open rear end extending forward from the rear of the hinge plate portion 52b. The hinge groove 52c is formed in the hinge plate portion 52b so that the distance from the left end of the hinge plate portion 52b to the center of the hinge groove 52c ′ is from the support surface of the front frame portion of the storage frame 21 to the axis of the hinge pin 51c. The groove width is set to be slightly smaller than the distance, and the groove width is formed in an arc shape having the same radius as the outer diameter of the hinge pin 51c at the front end bearing portion which is somewhat larger than the diameter of the hinge pin 51c at the rear end opening. Further, as described above, the lower storage frame side hinge metal fitting is arranged along the support surface of the accommodation frame 21, and the lower game board side hinge metal fitting is arranged along the lower surface of the decorative board 31. Yes.
[0038]
For this reason, when the storage frame side hinge metal fitting 51 and the game board side hinge metal fitting 52 ′ are engaged and disengaged, the hinge plate portion is placed in the storage frame 21 with the arrangement posture in which the game board 30 is substantially orthogonal to the storage frame 21. The game board 30 is slid horizontally in the left direction as it is in a state where the load is supported by supporting the load and the side surface of the decorative plate 31 is in contact with the front frame portion of the housing frame 21. The hinge groove 52 can be engaged with 51c. For this reason, it is not necessary to perform a delicate operation such as the vertical positioning of the hinge pin and the pin hole while supporting the load of the game board 30 and the positioning of the hinge groove 52c ′ with respect to the hinge pin 51c. Therefore, the game board 30 can be easily mounted.
[0039]
Then, after the hinge groove 52c ′ is engaged with the hinge pin 51c, the right side of the game board 30 is pressed forward and swung to ensure the engaged state between the hinge pin 51c and the hinge groove 52c ′. However, the game board 30 can be rotated around the swing axis about the upper and lower hinge pins 51c, 51c to be opened and closed to the storage frame 21. Thereby, the game board 30 is accommodated in the accommodation frame 21 so that it can be opened / closed / removed laterally rearward, and even a relatively heavy game board can be easily attached / detached from the rear of the accommodation frame 21.
[0040]
Further, in the gaming board hinge mechanism of this configuration, a certain restriction is imposed on the angular posture of the gaming board 30 when the hinge groove 52c ′ is engaged with and disengaged from the hinge pin 51c (for example, the gaming board 30 with respect to the containing frame 21 in the illustrated groove configuration). However, once the hinge groove 52c ′ is engaged with the hinge pin 51c and swung in the closing direction, the hinge pin 51c and the hinge groove 52c ′ are not disengaged thereafter. . For this reason, it is possible to freely swing open and close without supporting the game board 30 between the attaching / detaching angle position and the closing angle position and hold it at an arbitrary opening angle position. In the state where the game board 30 is closed to the storage frame 21, it opposes the external force acting in the left-right direction by the engagement between the hinge groove 52c 'oriented in the front-rear direction and the hinge pin 51c, and the bearing at the front end of the hinge groove Due to the engagement of the part and the hinge pin 51c, the structure has a high resistance against the external force acting from the front of the game board 30.
[0041]
In the above, an example in which a hinge pin is provided on the housing frame side hinge fitting 51 and a hinge groove is formed on the game board side hinge fitting 52 has been shown, but the arrangement position of the hinge pin and the hinge groove may be reversed. For example, the game board side hinge fitting 52 is provided with a hinge pin protruding in the vertical direction and accommodated in the plate accommodating portion 32b, while the accommodation frame side hinge fitting 51 is formed with a hinge groove that can be engaged with and disengaged from the hinge pin. The hinge plate portion 51b of the housing frame side hinge fitting is inserted into the plate housing portion 32b between the hinge plate portion 52b of the side hinge fitting 52 and the decorative plate 31, and the hinge pin on the game board side is engaged with the hinge groove on the housing frame side. It can also be configured to match. According to such a configuration, the game board side hinge fitting does not protrude in the outer peripheral direction of the game board, and in addition to the hinge plate portion 52b having no groove, the hinge pin is disposed in the plate housing portion 32b. Therefore, it is possible to configure a game board hinge mechanism that is not easily damaged by an external force.
[0042]
Next, the game board 30 that is hinge-engaged and closed to the storage frame 21 as described above is provided at the upper and lower central portions of the right edge of the storage frame 21 that faces the game board hinge mechanism 50 (or the same for 50 'and below). An opening assisting member 55 that urges rearward is provided so that the game board 30 can be attached and detached more easily (see FIG. 3). FIG. 11 is a perspective view of the vicinity of the attaching portion of the opening assisting member 55, FIG. 12 is a plan sectional view showing the action of the opening assisting member 55 when opening and closing the game board 30, and FIG. 13 is an attaching portion of the opening assisting member 55. A rear view of the vicinity is shown.
[0043]
The opening auxiliary member 55 includes a rectangular flange-shaped fixing portion 55a having screw insertion holes formed at predetermined intervals in the vertical direction, a first side portion 55b extending forward by bending a left side edge of the fixing portion 55a at a right angle, An arch portion 55c whose front end side of the first side portion 55b is folded back in a convex semicircular arc shape, a second side portion 55d connected to the arch portion 55c and extending rearward in parallel with the first side portion, The rear part of the two side parts is composed of an urging piece 55e bent diagonally rearward on the opposite side to the first side part. For example, a stainless steel plate having a thickness of about 0.5 to 1 mm is punched and press-molded to form the illustrated shape. It is formed by molding.
[0044]
The receiving frame 21 is formed with a fixing support portion 21a in which the right side frame portion is cut out according to the height dimension of the opening assisting member 55 and the fixing portion 55a is attached, and a screw is received in front thereof. The screw bosses are formed at predetermined intervals in the vertical direction, and the inner wall surface of the side frame portion is counterbored according to the thickness of the opening assisting member 55 and the shape of the first side portion 55b, and the first side receiving portion 21b. Is provided. Further, a notch portion 21 e for projecting the biasing piece portion 55 e to the inside of the housing frame 21 is formed in the front frame portion that supports the front surface of the decorative plate 31.
[0045]
The opening assisting member 55 is fixed at the set position of the side frame portion by supporting the fixing portion 55a on the fixing support portion 21a and screwing and fastening the screw 59 to the screw boss through the screw insertion hole formed in the fixing portion. . When the opening assisting member 55 is screwed, the first side portion 55b is accommodated in the first side receiving portion 21b that is counterbored inside the side frame portion and protrudes inward from the wall surface of the side frame portion. The arch portion 55c and the second side portion 55d are accommodated in the groove portion between the side frame portion and the front frame portion of the accommodating frame 21, and the urging piece portion 55e is accommodated from the notch portion 21e to the accommodating frame 21. It projects obliquely rearward on the inside, and its tip side is disposed so as to be swingable back and forth.
[0046]
Here, the outer surface spacing of the first side portion 55b and the second side portion 55d is set to be smaller than the groove width between the side frame portion and the front frame portion in the housing frame 21, and the biasing piece portion. When 55e is pressed forward, each part from the first side part 55b to the tip of the urging side part 55e is elastically deformed to accumulate elastic force. Further, by providing the arch portion 55c between the first side portion 55b and the pressing side portion 55e as described above, it is difficult to be affected by variations in the position system and shape accuracy of each component member, and the elastic force is applied over a wide range. It is possible to generate a stable urging force by accumulating. In addition, the front-end | tip part of the urging | biasing piece part 55e is formed in the loose R shape toward the front, and can engage smoothly with the front surface of the decorative board 31. FIG.
[0047]
Therefore, when the game board 30 supported by the game board hinge mechanism 50 is swung in the closing direction, the decorative board 31 is in a relative angular position immediately before the front surface of the decorative board 31 becomes parallel to the support surface of the front frame portion. Smoothly engages with the tip of the urging piece 55e that projects obliquely backward into the frame (see the two-dot chain line in FIG. 12). When the rear surface of the decorative board 31 is pressed forward from this contact state to further swing the game board 30 in the closing direction, each part from the first side portion 55b of the opening assisting member 55 to the tip of the biasing piece portion 55e. In the closed angle position where the front end side of the decorative plate 31 abuts against the front frame portion, the biasing piece portion 55e is formed on the front frame portion. It is accommodated in the notch 21e and disposed so as to be sandwiched between the front frame and the decorative plate 31 (see the solid line in FIG. 12).
[0048]
Then, with the opening assisting member 55 elastically deformed in this way, the closing clamps 23 provided at the respective peripheral portions of the housing frame 21 are rotated, and the clamp lever 23 a is engaged with the back surface of the decorative plate 31. Thus, the game board 30 is accommodated and held in the closed posture accommodated in the accommodation frame 21.
[0049]
The closing clamp 23 is a clamp lever 23a embossed with a hemispherical projection on the front side that engages with the decorative plate 31, and is planted to protrude rearward from the front frame 20 so that the clamp lever can be rotated in a vertical plane. A supporting shaft 23b to be supported, a coil spring 23c that urges the clamp lever 23a supported by the supporting shaft 23b forward, a cap nut 23d that is screwed to the rear end of the supporting shaft to compress and hold the coil spring 23c, and the like.
[0050]
In the closed clamp 23, the clamp lever 23a is rotated by using a finger-hanging portion bent on the side of the lever, whereby the clamp lever 23a is engaged with and disengaged from the rear surface of the decorative plate 31, and the elasticity of the coil spring 23c is increased. The game board 30 can be fixed regardless of variations in the thickness of the decorative board 31 by elastically pressing the rear surface of the decorative board 31. In the present embodiment, such a closing clamp 23 is provided at one location on the left edge side where the game board hinge mechanism 50 is provided, two locations above and below the right edge side where the opening assist mechanism 55 is provided, and further below the housing frame 21. The example which provided the closing clamp 23 'of the form which does not have a coil spring in the center is shown.
[0051]
On the other hand, as described above, the closing clamp 23 of the game board 30 held and held in the closing posture in the receiving frame 21 is rotated in the releasing direction to release the closing, and the pressing force pressing the decorative board 31 forward is released. Then, the opening assisting member 55 self-resets to the shape before elastic deformation by the elastic force stored in each part of the opening assisting member 55, and the tip of the urging piece 55e presses the front surface of the decorative plate 31 backward. To swing the game board 30 in the opening direction. As a result, the right side of the decorative plate 31 is lifted from the housing frame 21 and is disposed so as to be hooked on the right side. Therefore, the operator can easily swing and release the game board 30 by placing his / her finger on the right side surface of the decorative board 31 that has been lifted, and the game board 30 can be opened to an appropriate opening angle position for easy detachment work. The game board 30 can be removed by grasping the part.
[0052]
In the embodiment, the example in which the opening assisting member 55 is provided at one central portion on the right edge of the housing frame 21 is shown. However, the opening assisting member 55 may be disposed at a position away from the swing axis of the game board hinge mechanism 50. For example, a configuration may be adopted in which one location is provided above or below the right edge, or a plurality of locations are provided above and below, or provided on the upper and lower frame portions.
[0053]
Moreover, the closing clamp 24 as shown to FIG. 14 and FIG. 15 can also be used for a closing clamp. The closing clamp 24 includes a clamp plate 24a having a distal end bent in an arc shape and a cylindrical collar fixed by caulking to a proximal end, and a bolt screwed into a screw bush on the front frame through the collar of the clamp plate 24a. The main component is 24d. In the closing clamp 24, the bolt 24d is loosened to rotate the clamp plate 24a, and is engaged with and disengaged from the back surface of the decorative plate 31, and the bolt 24d is tightened, thereby utilizing the elasticity of the clamp plate 24a. The back surface is elastically pressed so that the game board 30 can be fixed regardless of variations in plate thickness. Moreover, according to the closing clamp 24 of this structure, a mechanism structure can be simplified and a low-cost closing mechanism can be provided.
[0054]
In the above description, the attachment / detachment of the game board 30 has been described. However, the pachinko machine PM is provided with an open holding mechanism for holding the back set board 40 in an open posture so that the attachment / detachment work of the game board 30 can be performed more easily. ing. This open holding mechanism is provided on the right edge sides of the front frame 20 and the back set board 40, and is provided with a back set board hinge mechanism 60 that supports the back set board 40 so that it can be opened and closed laterally and detachably behind the front frame 2. The back set board 40 is configured to have an engagement connection structure 70 that holds and holds the back set board in an open posture in a state where the back set board 40 is opened to the rear of the front frame 20. Hereinafter, the back set board hinge mechanism 60 will be described first with reference to FIGS. 16 to 21, and then the engagement connection structure 70 will be described with reference to FIGS. 22 to 27.
[0055]
Here, FIG. 16 to FIG. 21 will be briefly described in advance. FIG. 16 is a perspective view of the back set panel hinge mechanism 60 (60U, 60L) as viewed obliquely from the rear, and FIG. 18 is a rear view of the upper back set board hinge mechanism 60U in the state, FIG. 18 is a rear view of the back set board hinge mechanism 60 in a state in which the back set board 40 is closed, and FIG. 19 is a back set in a state in which the back set board 40 is closed. FIG. 20 is a plan view of the panel hinge mechanism 60, FIG. 20 is a plan view of the back set panel hinge mechanism 60 in a state in which the back set panel 40 is opened and slid in the front frame direction, and FIGS. It is a top view which expands and shows the position state of the back set board hinge mechanism 60 in FIG.
[0056]
The back set panel hinge mechanism 60 is composed of a pair of upper and lower hinge mechanisms 60U and 60L. Each hinge mechanism 60U and 60L includes front frame side hinge fittings 61 and 61 fixed to the rear surface side of the front frame 20, respectively. It consists of back set board side hinge fittings 62, 62 fixed to the front side of the back set board 30 by screws. As a whole, the hinge mechanism is formed by fitting the front frame side hinge fitting 61 and the back set board side hinge fitting 62 together. It is.
[0057]
The front frame-side hinge fitting 61 has a strip-shaped fixed flange portion 61a extending vertically, and a hinge plate portion 61b that is bent at a right angle and has a hinge plate portion 61b extending horizontally rearward. A shaft pin 61c having a tapered end is projected and fixed to 61b. The fixing flange portion 61a is formed with a positioning projection 63d projecting rearwardly from the hinge fitting mounting portion of the front frame 20 and a positioning pin hole 61d that can be fitted and removed, and screw insertion holes in the form of flat holes on the top and bottom thereof. Is formed.
[0058]
The front frame side hinge fitting 61 is formed by stamping and bending a cold rolled steel sheet having a thickness of about 2.3 mm into a predetermined shape as shown in the drawing by press molding or the like, and fixing the shaft pin 61c to the hinge plate portion 61b. It is formed by performing a required surface treatment such as plating. Then, the positioning pin hole 61d formed in the fixing flange portion 61a is positioned by fitting it into the positioning projection 63d of the hinge bracket mounting portion, and the small screw 68 is inserted into the upper and lower screw insertion holes, thereby the screw on the front frame side. By tightening into the receiving hole, the front frame 20 is fixed at the upper and lower set reference positions.
[0059]
On the other hand, the back set board side hinge fitting 62 has a strip-like fixed flange portion 62a extending vertically and a hinge plate portion 62b extending horizontally forward by bending a lower portion of the fixed flange portion 62a at a right angle. The hinge plate portion 62b is formed with a long pin-like pin engaging groove 62c extending in parallel with the support surface of the fixed flange portion 62a with a groove width slightly larger than the shaft outer diameter of the shaft pin 61c. On the hinge fitting mounting portion of the back set board 30, there are a positioning rib 64a for positioning the back set board side hinge metal fitting 62 so as to surround the outer periphery of the fixing flange 62a and a cylindrical screw boss 64b for receiving a screw. On the other hand, the fixed flange portion 62a is formed with a screw insertion hole in the form of a flat hole that aligns with the screw boss on the back set board side when positioned in this way.
[0060]
As with the front frame side hinge fitting 61, the back set board side hinge fitting 62 is formed by punching and bending a cold rolled steel sheet having a thickness of, for example, about 2.3 mm into a predetermined shape shown in the figure by press molding, etc. It is formed by applying the required surface treatment. Then, the fixed flange portion 62a is engaged with the positioning rib 64a and positioned, and a flat head screw 68 is screwed into the screw insertion hole and tightened, thereby fixing the back set board 30 at the upper and lower set positions.
[0061]
Then, by engaging the pin engaging grooves 62c, 62c of the upper and lower back set board side hinge fittings 62, 62 with the shaft pins 61c, 61c of the corresponding front frame side hinge fittings 61, 61, respectively, The upper and lower hinge mechanisms 60U and 60L are formed by being engaged with each other. Here, as shown in FIG. 5, the attachment interval between the upper and lower back set-side hinge fittings 62 and 62 is somewhat narrower than the attachment interval between the upper and lower front frame hinge fittings 61 and 61 (the lower side The attachment position of the back set board side hinge fitting 62 is set somewhat upward). For this reason, when the upper and lower hinge fittings are interconnected, first, focus on the upper hinge mechanism 60U, engage the pin engaging groove 62c with the shaft pin 61c, and then focus on the lower hinge mechanism 60L. By engaging the pin engaging groove 62c with 61c, it can be easily engaged one by one.
[0062]
Thus, when the upper and lower front frame side hinge fittings 61 and 61 and the back set board side hinge fittings 62 and 62 are engaged and connected, the rear set board 40 is moved to the rear surface of the front frame 20 by the upper and lower hinge mechanisms 60U and 60L. It is supported so that it can be opened and closed laterally. On the other hand, in the hinge mechanisms 60U and 60L, the pin engaging groove 62c that engages with the shaft pin 61c is formed in a long hole shape, and the back set board 40 is formed in the extending direction of the pin engaging groove 62c. Can be moved by the effective length of.
[0063]
For this reason, the back set board 40 is arbitrarily opened at the engagement position between the shaft pin 61c and the pin engagement groove 62c shown in FIGS. 19 and 21 (a) (hereinafter referred to as “groove tip position” for convenience). In addition to being able to open and close at an angle and to hold it closed, with the back set board 40 opened, the back set board 40 is pressed toward the hinge bracket to slide the back set board 40 toward the front of the front frame 20. The engagement position of the pin engagement groove 62c with respect to the shaft pin 61c is changed to the engagement position shown in FIGS. 20 and 21B (also referred to as “groove base end position”), and The back set board 40 can also be opened and closed with the swing radius reduced.
[0064]
On the other hand, the frame plate on the anti-hinge side of the outer frame 10, that is, the right frame plate 13 on the right side of the front, is matched with the swing trajectory of the right frame rod 47 of the back set panel 40 with the swing radius reduced in this way. A receiving notch 13b for receiving the back set board 40 is formed.
[0065]
For this reason, the front frame 20 is opened to the front of the outer frame 10, the back set board 40 is opened to the rear of the front frame 20, the engagement position of the upper and lower hinge brackets is changed to the groove base end position, and the back set board 40 is When opened toward the outer frame 10, the back set board 40 enters the frame without coming into contact with the right frame plate 13. Conventionally, the back set board 40, which has been difficult to be accommodated when the front frame 20 is opened, is used. A large part can be accommodated in the frame of the outer frame 10.
[0066]
Now, on the opposite side of the back set board 40 and the outer frame 10 thus opened, there is an engagement connecting structure 70 that holds and holds the back set board 40 in an open position with the back set board 40 opened. Is provided. This engagement connection structure 70 is mainly composed of a locking member 71 on the outer frame side capable of meshing and engaging in the vertical direction and a locked member 72 on the back set board side. Hereinafter, the engagement connection structure 70 will be described with reference to FIGS. 22 to 25.
[0067]
22 is a perspective view of the engagement connection structure 70 as viewed obliquely from the rear, and FIG. 23 is an engagement connection structure 70 as viewed from the height position of the ball storage tank 31 when the back set board 40 is held open. FIG. 24 is a plan sectional view of the height position of the engagement connection structure 70 when the back set board 40 is held open, and FIG. 25 is a side view showing the engagement process of the engagement connection structure 70. is there.
[0068]
As shown in FIGS. 22 and 24, the locking member 71 in the engagement connecting structure 70 includes a screw portion 71a, a disk-like flange portion 71b, and an engagement shaft that connects the screw portion 71a and the flange portion 71b. It has a portion 71c and has a flat head or truss head wood screw shape as a whole, and is formed by turning or rolling a metal wire. A pilot hole for introducing the screw portion 71a is formed in advance at a predetermined position of the receiving cutout portion 13b to which the locking member 71 is attached.
[0069]
The locking member 71 is screwed into the pilot hole by an automatic driving machine that chucks and rotates the flange portion 71b, and the engagement shaft portion 71c is interposed between the seat surface of the flange portion 71b and the surface of the receiving notch portion 13b. Is fixed to the driving height with a constant interval (for example, an interval of about 2 to 3 times the plate thickness of the locked member 72). In addition, you may comprise so that it may drive manually by providing tool engaging parts, such as a hexagon hole and a cross slot, in the flange part 71b.
[0070]
The locked member 72 has a screw insertion hole in the shape of a flat hole and has a rectangular flat plate-like base portion 72a, a hook plate portion 72b that protrudes rearward when the right edge of the base portion 72a is bent at a right angle, and a hook plate portion A locking groove 72c formed by opening downward in 72b, a guide edge surface 72d formed in a downward slope between the rear end of the hook plate portion 72b and the locking groove 72c, etc. It is formed by stamping and bending a cold-rolled steel sheet of about 1.6 mm into a shape shown in the figure by press molding or the like, and performing a required surface treatment such as UNIQLO plating.
[0071]
On the other hand, a counterbore portion matching the plate thickness of the locked member 72 and the shape of the base portion 72a is formed on the rear surface side of the right frame rod 47 of the back set board 40 aligned with the mounting position of the locking member 71. In addition, a screw boss 47a for receiving a screw is integrally formed at the rear thereof. The locked member 72 is positioned by fitting the base portion 72a to the counterbore portion of the right frame flange 47 of the back set board 40, and screwed into the screw boss 47a through the small screw 78 in the upper and lower screw insertion holes. It is fixed to the flange 47.
[0072]
Here, the groove width of the locking groove 72c is set to be the same as or slightly larger than the shaft diameter of the engagement shaft portion 71c in the locking member 71, and the height position of the upper end of the locking groove 72c is: When the engagement shaft portion 71c is engaged with the upper end portion of the locking groove 72c, the back set board 40 is horizontally supported by the engagement connecting structure 70 and the back set board hinge mechanism 60 on the other side edge side. The height position is set.
[0073]
Further, as described above, the receiving notch 13b formed in the right frame plate 13 moves the back set board 40 in the direction toward the outer frame 10 in a state where the engaging position of the upper and lower hinge fittings is displaced to the groove base end position. When the back set board 40 is swung inward of the outer frame 10 as described above, it is cut out in accordance with the swing trajectory of the right frame ridge 47 of the back set board 40 when it is opened. The hook plate portion 72b of the locked member 72 enters the frame so as to follow the inner surface of the cut-out receiving portion 13b. On the other hand, in a state where the back set board 40 is opened, the back set board 40 is cantilevered by the upper and lower hinge mechanisms 60U and 60L. The hook plate portion 72b enters the frame with the 47 side slightly inclined.
[0074]
For this reason, when the back set board 40 is swung inward of the outer frame 10, the locked member 72 is first engaged with the downward guide edge surface 72d of the hook plate portion as shown in FIG. It contacts the outer peripheral surface of the shaft portion 71c. Therefore, when the back set board 40 is pressed toward the inside of the outer frame 10, the guide edge surface 72d engages and slides so as to ride on the engagement shaft portion 71c, and the right frame side of the back set board 40 slightly moves. Move to the outer frame while moving up. When the end portion of the guide edge surface 72d exceeds the upper end of the engagement shaft portion 71c, the groove surface of the locking groove 72c is now engaged with the engagement shaft portion 71c so that the back set board 40 is drawn. The engagement shaft portion 71c and the upper end portion of the locking groove 72c are engaged and engaged with each other.
[0075]
When the locking member 71 and the locked member 72 are engaged with each other in this manner, the back set board 40 is locked in the front-rear direction by the engagement between the engagement shaft portion 71c and the locking groove 72c, and the hook plate The portion 72b is sandwiched between the flange portion 71b and the receiving notch portion 13b and is locked in the left-right direction. As a result, the back set board 40 is restricted from moving in both the front and rear and left and right directions with the majority of the back set board 40 being accommodated in the frame of the outer frame 10, and is locked in the open position shown in FIG. Retained.
[0076]
For this reason, for example, in addition to the above-described attaching / detaching work of the game board 30, maintenance work such as adjustment of various winning tools and replacement of the winning detection sensor in the game board 30, or cleaning of the game ball discharge passage 46 in the back set board 40. Maintenance work on the front side of the back set panel such as work can be performed in a stable open posture in which the back set board 40 does not swing in the closing direction. Further, in the open holding mechanism of this configuration, most of the back set board is accommodated in the frame of the outer frame 10 and is held open, so that it is wide between the rear face of the game board 30 and the front face of the back set board 40. A work space can be secured, and the above operations can be easily performed with a margin.
[0077]
On the other hand, in order to release the open posture of the back set board 40 after the work is finished, the right side portion of the back set board 40 is slightly lifted to move the locked member 72 upward, and the lock groove 72c and the engagement shaft portion 71c It is only necessary to release the meshing engagement and pull the back set board 40 forward. Then, the upper and lower hinge brackets are displaced to the front end side engagement position at an appropriate opening angle position to swing and close, and then the lock lever 25 is rotated and locked to hold the back set panel 40 in the closed position. Is done.
[0078]
Therefore, in the pachinko machine PM provided with the open holding mechanism as described above, the back set board 40 can be held open by pressing the back set board 40 inward of the outer frame 10, and the open posture is also provided. The open holding state can be released by slightly lifting the back set board 40 and pulling it forward. For this reason, there is no need to perform complicated operations such as inserting a finger or operating a lever into the gap between the back set board 40 and the outer frame 10 in order to hold and release the back set board 40, and the workability is good. An open holding mechanism can be provided.
[0079]
As described above, the engaging shaft portion 71c is provided on the locking member 71 on the outer frame 10 side as a configuration example of the locking member on the outer frame side and the locked member on the back set panel side that can be engaged with each other in the vertical direction. An example is shown in which the locking groove 72c is provided in the locked member 72 on the back set board 40 side, and the locking groove 72c moves and engages and engages with the engagement shaft portion 71c. You may comprise reversely the arrangement | positioning positional relationship of a groove part. 26 and 27, an engagement connecting structure comprising the outer frame side locking member 171 and the back set board 40 side locked member 172 in which the positions of the shaft portion and the groove portion are reversed in this way. The engagement connecting structure 170 will be briefly described below with reference to both drawings. 26 is a perspective view of the engaging and connecting structure 170 as viewed obliquely from behind corresponding to FIG. 22, and FIG. 27 is a side view showing the engaging process of the engaging and connecting structure 170 corresponding to FIG. Moreover, since the structure of each part other than the engagement connection structure 170 is the same as that of the pachinko machine mentioned above, duplication description is abbreviate | omitted.
[0080]
The locking member 171 is formed of a plate-like body bent in a crank shape in plan view, and is offset-molded in parallel with the fixed leg portion 171a and the fixed leg portion 171a that are screwed to the receiving notch portion 13b of the right frame plate. A hook plate portion 171b extending forward, a locking groove 171c formed to open upward in the hook plate portion 171b, and a guide edge formed in an upward slope shape between the front end portion of the hook plate portion 171b and the locking groove 171c For example, a cold-rolled steel sheet having a thickness of about 1 to 1.6 mm is punched and bent into the shape shown in the figure by press molding or the like, and is subjected to a necessary surface treatment such as unichrome plating.
[0081]
The locking member 171 is screwed into a predetermined position of the receiving notch 13b by inserting a screw 177 into a screw insertion hole formed in the fixed leg 171a and screwed into the receiving notch 13b, and the hook plate 171b and the receiving notch 13b. Between the surfaces of the fixed member 172 and the support plate 172b of the locking member 172 (the offset dimension between the fixed leg portion and the hook plate portion. Is formed at intervals of about 4 times.
[0082]
The locked member 172 includes a flat plate-shaped base portion 172a having a screw hole in the shape of a flat hole, a support plate portion 172b protruding rightward from the right edge of the base portion 172a, and a support shaft. The engaging shaft portion 172c is fixed to the plate portion 172b and protrudes horizontally inward. The metal material similar to that of the locking member 171 is processed and formed, and the engaging shaft portion is caulked and fixed, and the required surface treatment is performed. Formed. A counterbore portion and a screw boss are integrally formed on the right frame rod 47 of the back set board in the same manner as the mounting portion of the locked member 72 described above, and the locked member 172 is positioned on the right frame rod 47. The screw is fixed with a flat head screw 78.
[0083]
Here, in the relationship between the locking groove 171c and the engagement shaft portion 172c, the groove width of the locking groove 171c is set to be the same as or slightly larger than the shaft diameter of the engagement shaft portion 172c, and the lower end of the locking groove 171c. The position and the height position of the engagement shaft portion 172c are such that when the engagement shaft portion 172c is engaged with the lower end portion of the locking groove 171c, the engagement connection structure 170 and the back set board hinge mechanism 60 on the other side edge side Thus, the back set board 40 is set to a height position where it is supported horizontally.
[0084]
Further, as described above, the receiving notch 13b formed in the right frame plate 13 has the right frame ridge 47 when the upper and lower hinge brackets are engaged with the groove base end position and the back set board 40 is swung. The pivot plate portion 172b of the member to be locked 172 is moved away from the receiving notch portion 13b when the back set board 40 is swung inward of the outer frame 10. Enter the frame along the inner surface. Further, the back set board 40 that is cantilevered by the upper and lower hinge mechanisms 60U, 60L has the pivot plate portion 172b in the frame with the right frame flange 47 side slightly tilted by the deflection of the hinge fitting accompanying the load. Enter.
[0085]
For this reason, when the back set board 40 is swung inward of the outer frame 10, as shown in FIG. 27A, the locked member 172 first has the support shaft plate portion 172 b of the receiving notch portion 13 b. The engaging shaft portion 172c that enters between the surface and the hook plate portion 171b and is fixed to the support shaft plate portion comes into contact with the upward guide edge surface 171d. Therefore, when the back set board 40 is pressed toward the inside of the outer frame 10, the engagement shaft portion 172c is engaged and slipped so as to ride on the guide edge surface 171d, and the right frame side of the back set board 40 is slightly moved. Move to the outer frame while moving up. When the engagement shaft portion 172c exceeds the upper end of the guide edge surface 171d, the engagement shaft portion 172c is engaged so as to drop into the locking groove 171c, and the back set board 40 is swung so as to be pulled in. The engaging shaft portion 172c is engaged with and engaged with the lower end portion of the locking groove 171c.
[0086]
Thus, when the locking member 171 and the locked member 172 are engaged with each other in the vertical direction, the back set board 40 is locked in the front-rear direction by the engagement between the locking groove 171c and the engagement shaft portion 172c, and the support shaft is supported. The plate portion 172b is sandwiched between the hook plate portion 171b and the receiving notch portion 13b and locked in the left-right direction. As a result, the back set board 40 is restricted from moving in both the front and rear directions and the left and right directions with most of the back set board 40 being accommodated in the frame of the outer frame 10, and is in the open position shown in FIG. 4. It is held.
[0087]
For this reason, the attaching and detaching work and the maintenance work of the game board 30 and the maintenance work on the front side of the back set board 40 can be performed in a stable open posture in which the back set board 40 does not swing in the closing direction. Moreover, since most of the back set board 40 is accommodated in the frame of the outer frame 10 and is held open, a large work space can be secured between the rear surface of the game board 30 and the front surface of the back set board 40. The above operations can be easily performed with a margin.
[0088]
On the other hand, in order to finish the maintenance work and release the open posture of the back set panel 40, the right side portion of the back set panel 40 is slightly lifted to move the locked member 172 upward to lock the engaging shaft part 172c. It is only necessary to release the meshing engagement with the groove 171c and pull the back set board 40 forward. Then, the upper and lower hinge brackets are displaced to the front end side engagement position at an appropriate opening angle position to swing and close, and then the lock lever 25 is rotated and locked to hold the back set panel 40 in the closed position. Is done.
[0089]
Therefore, in the pachinko machine PM provided with the open holding mechanism as described above, the back set board 40 can be held open by pressing the back set board 40 inward of the outer frame 10, and the The open holding state can be canceled by lifting the back set board 40 lightly and pulling it forward. For this reason, there is no need to perform complicated operations such as inserting a finger or operating a lever into the gap between the back set board 40 and the outer frame 10 in order to hold and release the back set board 40, and the workability is good. An open holding mechanism can be provided.
[0090]
In the above, the example in which the engaging and connecting structure is provided in the upper and lower middle portions or the upper portion of the outer frame 10 and the back set board 40 has been described. You may provide in the lower part of the set panel 40. FIG. Further, in the embodiment, the form in which the locked member moves so as to ride on the locking member and engages up and down is illustrated, but the up-and-down engagement form may be upside down. A form in which the locked member sinks below the locking member and engages using the bending of the board may be adopted. Furthermore, although several embodiment was demonstrated for every Example about the game board hinge mechanism, the closing clamp, the engagement connection structure, etc., these can be implemented in combination as appropriate.
[0091]
【The invention's effect】
As described above, according to the present invention, the front frame assembled to the front frame through the front frame hinge mechanism provided on one side edge side of the fixed holding outer frame so that it can be opened laterally and opened forward is provided on the front frame. In a gaming machine comprising a gaming board that is housed and held in the housing frame from behind the front frame, and a back set board that is assembled behind the front frame and covers and holds the rear side of the gaming board closed at the time of providing the game. The back set panel slides in the direction of the front frame in the state that the front frame on the same side as the front frame hinge mechanism and the back set panel hinge mechanism provided on the back set panel are opened, closed, opened and opened to the rear of the front frame. Can be assembled, The front frame is opened in front of the outer frame and When the back set board is further opened in the outer frame direction with the back set board opened to the rear of the front frame and slid in the front frame direction, Since the turning radius of the back set panel decreases according to the slide amount, the outer frame It is formed so that the rear side of the back set board can be accommodated. The back set board and the outer frame are provided with an engagement connecting structure for temporarily fixing the back set board in an open posture in which the rear side of the back set board is accommodated in the frame of the outer frame, and the open holding mechanism of the back set board Is configured.
[0092]
In the open holding mechanism having such a configuration, the turning radius on the swing end side can be reduced according to the sliding movement amount by opening the back set board and sliding it in the direction of the front frame. Receiving without contacting the rear surface of the back set board whose turning radius is reduced by sliding movement, the rear surface side of the back set board is formed so as to be accommodated in the frame. And the back set board in which the rear surface side was accommodated in the frame of an outer frame is temporarily fixed by the engagement connection structure in the open posture opened widely. Therefore, according to the open holding mechanism of the back set board according to the present invention, the open angle of the back set board with respect to the front frame is increased by accommodating the back side of the back set board in the frame of the outer frame and holding it open. Thus, the work area behind the game board can be expanded, whereby the game board can be easily attached / detached, maintenance work for each part on the rear surface of the game board and each part on the front surface of the back set board, and the like.
[Brief description of the drawings]
FIG. 1 is a front view of a pachinko machine shown as an example of a gaming machine to which the present invention is applied.
FIG. 2 is a rear view of the pachinko machine.
FIG. 3 is a rear view of the pachinko machine with the outer frame removed and the back set board opened.
FIG. 4 is a plan view of the pachinko machine in a state where the back set board is held open by an open holding mechanism.
FIG. 5 is a perspective view of the game board hinge mechanism shown with the game board removed from the housing frame.
FIG. 6 is a rear view of the game board hinge mechanism in a state where the game board is housed in the housing frame.
FIG. 7 is a side sectional view mainly showing an engagement state between a hinge pin and a hinge groove in an upper hinge mechanism.
FIG. 8 is a plan view mainly showing an operation when the game board side hinge fitting is engaged with and disengaged from the housing frame side hinge fitting.
FIG. 9 is a perspective view showing another configuration example of the game board hinge mechanism.
FIG. 10 is a plan view mainly showing an operation when the game board side hinge fitting is engaged with and disengaged from the housing frame side hinge fitting in the game board hinge mechanism of the other configuration example.
FIG. 11 is a perspective view of the vicinity of the attachment portion of the opening assisting member.
FIG. 12 is a plan sectional view showing the action of the opening assisting member when opening and closing the game board.
FIG. 13 is a rear view of the vicinity of the attachment portion of the opening assisting member.
FIG. 14 is a perspective view showing another configuration example of the closing clamp.
FIG. 15 is a plan sectional view of the vicinity of a mounting portion of a closing clamp according to another configuration example.
FIG. 16 is a perspective view of the back set board hinge mechanism as viewed obliquely from the rear.
FIG. 17 is a rear view of the upper back set board hinge mechanism in a state where the back set board is opened.
FIG. 18 is a rear view of the back set board hinge mechanism in a state in which the back set board is closed.
FIG. 19 is a plan view of the back set board hinge mechanism in a state in which the back set board is closed.
FIG. 20 is a plan view of the back set board hinge mechanism in a state where the back set board is opened and slid in the direction of the front frame.
21 is an enlarged plan view showing a position state of a back set board hinge mechanism in FIGS. 19 and 20. FIG.
FIG. 22 is a perspective view of the engaging and connecting structure in the open holding mechanism as viewed obliquely from the rear.
FIG. 23 is a plan view of the engagement connecting structure as seen from the height position of the ball storage tank when the back set board is held open.
FIG. 24 is a plan cross-sectional view of the height position of the engagement connecting structure when the back set board is held open.
FIG. 25 is a side view showing an engagement process of the engagement connecting structure.
FIG. 26 is a perspective view showing another configuration example of the engagement connection structure.
FIG. 27 is a side view showing an engagement process of the engagement connecting structure of the other configuration example.
[Explanation of symbols]
PA game area
PM Pachinko machine
3 (3U, 3L) Front frame hinge mechanism
4 Locking device
5 Glass door
6 Upper ball dish
7 Lower ball dish
8 Launch handle
9 game ball launcher
10 Outer frame
11 Upper frame plate
12 Left frame plate
13 Right frame plate (13b receiving notch)
14 Lower frame plate
20 Front frame
21 storage frame
(21a fixed support portion, 21b first side receiving portion, 21e cutout portion)
23,23 'closure clamp
(23a clamp lever, 23b spindle, 23c coil spring,
23d cap nut)
24 Closure clamp
(24a clamp plate, 24d bolt)
25 Lock lever
30 game board
31 decorative panel
32 bracket housing (32a fixed housing, 32b plate housing)
34 prizes
35 Image display device
37 Out mouth
40 Back set board
41 ball storage tank
42 Tank rail
44 Ball dispenser
45 ball payout passage
46 Played ball discharge passage
47 Right frame 杆 (47a Screw boss)
50, 50 '(50U, 50L) Game board hinge mechanism
51 Housing frame side hinge bracket
(51a fixed flange part, 51b hinge plate part, 51c hinge pin,
51d Positioning pin hole)
52, 52 'Game board side hinge bracket
(52a fixing flange, 52b hinge plate,
52c, 52c 'hinge groove, 52r flank)
53b Screw boss
53d Positioning protrusion
55 Opening auxiliary member
(55a fixing part, 55b first side part, 55c arch part,
55d second side, 55e biasing piece)
57 Sarah machine screw
58 screws
59 screws
60 (60U, 60L) Back set panel hinge mechanism
61 Front frame side hinge bracket
(61a fixed flange, 61b hinge plate, 61c shaft pin,
61d Locating pin hole)
62 Back set panel side hinge bracket
(62a fixing flange, 62b hinge plate, 62c pin engaging groove)
63d Positioning protrusion
64a Positioning rib
64b screw boss
68 Sarah machine screw
70 engagement connection structure
71 Locking member
(71a thread part, 71b flange part, 71c engagement shaft part)
72 Locked member
(72a base part, 72b hook plate part, 72c locking groove,
72d guide edge surface)
78 Sarah machine screw
170 engagement connection structure
171 Locking member
(171a fixed leg portion, 171b hook plate portion, 171c locking groove,
171d Guide edge surface)
172 Locked member
(172a base portion, 172b support shaft plate portion, 172c engagement shaft portion)
177 screw

Claims (1)

固定保持用の外枠と、前記外枠に互いの一側縁側に設けられた前枠ヒンジ機構を介して前方に横開き開閉可能に組み付けられた開閉搭載用の前枠と、前面に遊技領域を有し前記前枠に設けられた収容枠に前記前枠の後方から収容保持される遊技盤と、前記前枠の後方に組み付けられ遊技提供時に前記遊技盤の後面側を覆って閉止保持される裏セット盤とを備えた遊技機において、
前記裏セット盤は、前記前枠ヒンジ機構と同じ一側縁側の前記前枠および前記裏セット盤に設けられた前枠側ヒンジ部材と裏セット盤側ヒンジ部材とからなる裏セット盤ヒンジ機構により、前記前枠の後方に横開き開閉および開放された状態で前記前枠方向にスライド移動が可能に組み付けられ、
前記前枠が前記外枠の前方に開放されかつ前記裏セット盤が前記前枠の後方に開放され前記前枠方向にスライド移動された状態で裏セット盤がさらに外枠方向に開放されたときに、前記裏セット盤はその回動半径がスライド量に応じて減少するため、前記外枠は当該裏セット盤の後面側を収容可能に形成され、
前記裏セット盤および前記外枠には、前記裏セット盤の後面側が前記外枠の枠内に収容された開放姿勢で前記裏セット盤を仮止めする係合連結構造が設けられていることを特徴とする裏セット盤の開放保持機構。An outer frame for fixing and holding, a front frame for opening and closing mounted so as to be able to open and close laterally forward through a front frame hinge mechanism provided on one side edge of each other on the outer frame, and a game area on the front And a game board that is housed and held from the rear of the front frame in a storage frame provided on the front frame, and is closed and held so as to cover the rear surface side of the game board when assembled and provided behind the front frame. In a gaming machine equipped with a back set board
The back set board has a back set board hinge mechanism comprising a front frame side hinge member and a back set board side hinge member provided on the back frame and the front frame on the same side edge side as the front frame hinge mechanism. , Assembled in such a way that it can slide and move in the direction of the front frame in a state of being opened and closed horizontally and opened behind the front frame,
When the front frame is opened in front of the outer frame and the back set board is opened rearward of the front frame and slid in the front frame direction, and the back set board is further opened in the outer frame direction. In addition, since the turning radius of the back set board decreases according to the slide amount, the outer frame is formed so as to accommodate the rear side of the back set board,
The back set board and the outer frame are provided with an engaging connection structure for temporarily fixing the back set board in an open posture in which a rear surface side of the back set board is accommodated in the frame of the outer frame. A feature of opening and holding the back set board.
JP2003158181A 2003-06-03 2003-06-03 Open set holding mechanism Expired - Fee Related JP4411016B2 (en)

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JP4411016B2 true JP4411016B2 (en) 2010-02-10

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