JP4296309B2

JP4296309B2 - The inner frame of the ball game machine

Info

Publication number: JP4296309B2
Application number: JP08413996A
Authority: JP
Inventors: 稔三輪
Original assignee: 有限会社愛和ライト
Priority date: 1996-04-05
Filing date: 1996-04-05
Publication date: 2009-07-15
Anticipated expiration: 2016-04-05
Also published as: JPH09271570A

Description

【０００１】
【発明の属する技術分野】
本発明は、弾球遊技機の中枠に関する。
【０００２】
【従来の技術】
従来、弾球遊技機にあっては、長方形の外枠、その外枠に開閉揺動可能に取り付けられた前面枠が設けられていた。そして、前面枠の下部に発射装置が取り付けられ、遊技盤は遊技盤取付枠を介して前面枠に保持されていた。また、遊技盤の背面側に取り付けられた機構盤には、賞球タンク、賞球払出装置、賞球通路等が取り付けられていた。つまり、遊技盤を遊技盤取付枠と機構盤とによってサンドイッチ状態として、これらを前面枠が支持する構造であった。
【０００３】
ところが、このようないわば多層構造であると構造自体が複雑となってしまうため、一体化されたプラスチック成形品であって従来の前面枠、遊技盤取付枠および機構盤の機能を持つ中枠の使用が提案されている。なお、一体化されているプラスチック成形品とは、必ずしも一体成形を言うわけではなく、例えば接着等により一体物とされている場合を含む概念である。
【０００４】
【発明が解決しようとする課題】
この中枠の採用は、弾球遊技機の内部の枠構成を簡略とし、組立などに要する工程や工数も削減されるという優れた効果を発揮したが、中枠と遊技盤との連結構造自体は従来と変わることがなかった。
【０００５】
本発明の目的は、一体的な構造の中枠の利点をさらに向上させることにあり、詳しくは弾球遊技機の組立工程の簡略化や組立工数の削減が可能な中枠を提供することにある。
【０００６】
【課題を解決するための手段】
上記課題を解決するための手段として、請求項１記載の構成を採用できる。この請求項１の弾球遊技機の中枠は、前記遊技盤の高さを上回る縦長と前記遊技盤の巾以上の横長とを有する内枠部、前記内枠部の背面側に配されて前記遊技盤の背面に接触して前記遊技盤の背面側への移動を規制する背面規制部材、前記遊技盤の下面に接触して前記遊技盤の荷重を支承すると共に該遊技盤の下方への移動を規制する下側規制部材、前記背面規制部材との間に前記遊技盤の厚さに相当する距離を保って前記内枠部の内側に向かって突出し前記遊技盤の前面に接触する前面規制部材、前記遊技盤の左側面に接触して左方向の移動を規制する左規制部材及び前記遊技盤の右側面に接触して右方向の移動を規制する右規制部材を前記一体化されているプラスチック成形品の一部として備えたことにより、前記遊技盤を該弾球遊技機の中枠の前面側から前記前面規制部材を避けて前記内枠部内に挿入して前記背面規制部材に押し当てる状態としてから該遊技盤を下方に移動させれば、前記背面規制部材と前記前面規制部材との間に前記遊技盤を嵌め込み、前記遊技盤を前記下側規制部材に支承させ、前記左規制部材に前記遊技盤の左方向の移動を規制させ、前記右規制部材に前記遊技盤の右方向の移動を規制させて前記遊技盤を装着することができる。
【０００７】
遊技盤を中枠の前側から内枠部内に挿入して落とし込むだけで、遊技盤は、背面規制部材と前面規制部材とにより軸方向（前後方向）の移動を規制され、下側規制部材により下方への移動を規制され、左規制部材と右規制部材とにより左右方向の移動を規制されて、中枠に装着されるので、装着は容易である。
【０００８】
なお、内枠部自体が左又は右規制部材を兼ねてもよく、こうすれば構造の一層の単純化が図れる。
【００１１】
また、請求項１の弾球遊技機の中枠には、装着された遊技盤の背面を前面規制部材に向けて押圧する押圧機構を設けてある。その押圧機構は、上端側をビスにて固定され下端側を自由端とされた板バネと、一対の平行面に沿って円柱の一部をそぎ取った形状で前記そぎ取り面に相当する平面部と前記そぎ取りの残部に相当する円弧部とが設けられ、前記円柱の軸を中心にして回転することで前記円弧部を前記板バネに対面させて前記板バネを押圧する押圧位置と前記平面部を前記板バネに対面させて前記板バネに接触しない押圧解除位置とに可変の回転部材と、前記回転部材に取り付けられたレバーとからなり、
前記レバーを介して前記回転部材を回転操作して前記押圧位置にさせれば、前記回転部材によって押圧された前記板バネが前記遊技盤の背面を前記前面規制部材に向けて押圧し、前記レバーを介して前記回転部材を回転操作して前記押圧解除位置にさせれば、前記板バネによる前記遊技盤の背面に対する押圧が解除される構成であるので、押圧機構にて遊技盤の背面を押圧し、遊技盤の前面を前面規制部材に確実に接触させて遊技盤の前面の位置を確実に規定できる。
【００１２】
弾球遊技機においては、発射された遊技球が正確に遊技盤面に到達することが肝心で、そのためには遊技球の発射直後の方向を規制する発射レールとその後の軌道を形成する円弧状のガイドレールとの位置関係がきわめて重要になる。普通、発射レールは中枠の前面側に装着され、ガイドレールは遊技盤の前面に装着されるから、発射レールとガイドレールとの位置関係を正確にするには、中枠と遊技盤の前面との相対位置を正確にすることが必要となる。
【００１３】
この請求項１の構成によれば、押圧機構によって遊技盤を前面側に押圧して遊技盤の前面を前面規制部材に押し当てることになるから、前面規制部材の遊技盤に当たる面の位置を正確にしておきさえすれば、中枠と遊技盤の前面との相対位置を正確に保持できる。よって、発射レールとガイドレールとの位置関係も正確になり、発射された遊技球の軌道も良好となる。
【００１４】
【発明の実施の形態】
次に、本発明の好適な一具体例にしたがって発明の実施の形態を説明する。
【００１５】
【具体例】
図１に示すように、弾球遊技機としてのパチンコ機１０は、可変図柄表示装置１２、可変図柄表示装置１２を始動させる始動入賞口１４、大当たり時に開放される大入賞口１６、普通入賞口１８、風車２０、アウト球を排出するためのアウト穴２１等を有する周知の遊技盤２２を備えている。
【００１６】
遊技盤２２の前面側は、ほぼ全体がプラスチック製のガラス保持枠２４に保持される二重の透明板２６で覆われており、遊技盤２２と透明板２６との間に遊技領域２８が形成されている。また、ガラス保持枠２４は、全体がプラスチック製の中枠３０に開閉自在に装着されており、中枠３０の上部にはいわゆる大当り状態が発生した際に点灯する大当りランプ３２が組み付けられている。
【００１７】
また、図１および図４に示すように、中枠３０は、上辺３４ａが木製で他の３辺がプラスチック製の外枠３４により背面側を囲まれて、開閉自在に保持されている。詳しくは、外枠３４の上下隅に設けられたヒンジ金具３６、３６から突出するヒンジピン３６ａが、中枠３０の上下の軸受部３１、３３に挿入されており、中枠３０はヒンジピン３６ａを軸にして揺動、開閉自在である。なお、図１に示すように、中枠３０の図示右側部分には、外枠３４に対して閉鎖されている中枠３０を施錠、解錠し、また中枠３０に対して閉鎖されているガラス保持枠２４を施錠、解錠するための錠３８が装着されている。
【００１８】
図１に示すように、中枠３０の前面側には、ガラス保持枠２４の下方に、上皿４０を有する皿扉４２がヒンジ（図示略）を介して開閉自在に装着されている。上皿４０には、パチンコ機１０内部から排出される遊技球の出口となる上皿出口４４が開口している。この皿扉４２は、通常の使用時には右裏側にてロックされて閉状態に保持され、併せてガラス保持枠２４によって上辺部分を押さえられ開放を防止されている。したがって、皿扉４２を開くには、ガラス保持枠２４を開放し、さらに右裏側のロックを解除する必要がある。
【００１９】
皿扉４２の下方では、下皿４６を有する下皿部材４８が中枠３０の前面側に固着されており、下皿４６には、パチンコ機１０内部から排出される遊技球の出口となる下皿出口５０が開口している。この下皿４６の底部には、スライド板５２が設けられており、スライド板５２をスライドさせて排出穴（図示略）を開放して遊技球を排出できる。また、下皿部材４８には複数の小孔からなるスピーカ面５４が設けられており、スピーカ面５４の裏側には遊技状態に応じて音声を発するスピーカ（図示しない）が装着されている。
【００２０】
さらに、下皿部材４８には、上皿４０から供給される遊技球を遊技領域２８に発射するための発射ソレノイド１１０（図１には示さない、図２参照）を操作する発射ハンドル５６が設置されている。
次に、中枠３０の構造について説明する。
【００２１】
中枠３０はプラスチック成形品で、図４に示されるように一体化されている。また図２、図３、図６および図７に示すように、中枠３０の中央部には、ほぼ台形の窓５８が設けられており、図２に示すようにこの窓５８の外周に沿って内枠部６０が設けられている。
【００２２】
図２に示すように、この内枠部６０の上側はランプ枠６２の下縁６２ａで規定され、右側は右上壁６４および右下壁６５で規定され、左側は左上壁６６および左下壁６８で規定される。また下側は、左下壁６８の下端部に連設する左コーナー部６９、この左コーナー部６９から突出する左下保持部材７０、右下壁６５に連設する右コーナー部７１および右コーナー部７１から突出し左下保持部材７０と対になる右下保持部材７２によって規定される範囲となる。
【００２３】
この内枠部６０では、ランプ枠６２の直下から右上壁６４沿いと左下壁６８沿いまで連続する（ア）面、右下壁６５から右下保持部材７２付近の（イ）面および左下壁６８に沿って左下保持部材７０付近に続く（ウ）面の延長面は互いにほぼ一致する。つまり、俗に言う「面一（つらいち）」であって、中枠３０を水平面に沿って図示のように寝かせた場合には、（ア）面、（イ）面および（ウ）面の高さは一致する。そして、その同じ状態で、（ア）面の左下部分、（ウ）面および（イ）面と窓５８で囲まれる（エ）面は、（ア）面、（イ）面および（ウ）面に対して一段低くなっている。この（エ）面の破線７３ａから破線７３ｂまでの範囲では、（イ）面および（ウ）面とほぼ面一になる仕切板７３が装着される。そして、（エ）面と仕切板７３との間は入賞球の通路となり、仕切板７３の前面側にはアウト球の通路が形成される。
【００２４】
また、（ア）面、左上壁６６および左下壁６８で囲まれる（オ）面も（ア）面、（イ）面および（ウ）面に対して一段低くなっており、（ア）面の左下部分は相対的に前面側に突出している。図３に示すように、中枠３０の背面側では、この部分は相対的に凹陥していて、ハーネス通路７５となっている。
【００２５】
図２、図６および図７に示すように、（ア）面の上部中央やや左よりには、円筒状の上ダボ７４が、（ア）面にほぼ垂直に立設され、（エ）面にも同様の下ダボ７６が立設されている。
また、左上壁６６には、（ア）面側に突出して左上保持部材７８が設けられ、右上壁６４には左上保持部材７８と対をなす右上保持部材８０が設けられている。
【００２６】
図２、図６、図７および図９に示すように、左下保持部材７０、右下保持部材７２、左上保持部材７８、右上保持部材８０は、（ア）面、（イ）面、（ウ）面に対してほぼ垂直となる下規制部７０ａ、７２ａ、７８ａ、８０ａと（ア）面、（イ）面、（ウ）面にほぼ平行な前規制部７０ｂ、７２ｂ、７８ｂ、８０ｂとを備えており、図９に示すように、前規制部７０ｂ、７２ｂ、７８ｂ、８０ｂと（ア）面、（イ）面、（ウ）面との間には遊技盤２２の厚さとほぼ一致する空隙が形成されている。
【００２７】
図２、図６および図７に示すように、ランプ枠６２には、下縁６２ａに立設された軸ピン８６を介して上側規制部材８８が取り付けられている。この上側規制部材８８は軸ピン８６を中心にして、図２および図６に示される位置と図７に示される位置との間で、ほぼ１８０゜の範囲で回動可能である。
【００２８】
図２および図８に示すように、（ア）面と（イ）面との接続部および（ア）面と（ウ）面との接続部には、それぞれ１枚の板バネ９０、９２が、上端側をビスにて固定され下端側を自由端として取り付けられている。これら板バネ９０、９２の背面側には、回転部材９４、９６が配されている。
【００２９】
図８に示すように、一対の平行面に沿って円柱の一部をそぎ取った形状で、一対の平面部Ｆと一対の円弧部Ｃを有している。これら回転部材９４、９６は、回転軸９８を中心にして回転自在で、図８（ａ）のように平面部Ｆを板バネ９０、９２に対面させた状態では、板バネ９０、９２に接触しないが、図８（ｂ）のように円弧部Ｃを板バネ９０、９２に対面させた状態では、板バネ９０、９２に当接してこれを押圧する。
【００３０】
図２に示すように、回転部材９４、９６にはレバー１０２、１０４が取り付けられており、レバー１０２、１０４を介して回転部材９４、９６を回転させることができる。レバー１０２、１０４は図８に示される回転軸９８を中心にして約９０度の範囲で揺動変位可能で、図２および図７に示される上げ位置にされた際にはその軸線は図８に示されるＵ位置になり、図６に示される下げ位置にされた際にはその軸線は図８に示されるＤ位置になる。
【００３１】
図２、図６および図７に示すように、（エ）面の下側は（イ）面を挟んで（カ）面が設けられている。この（カ）面には発射レール１０６が取り付けられ、（キ）面の背面側に設置される発射ソレノイド１１０の打撃部１１２が発射レール１０６の後端と対向している。この発射レール１０６上に載置された遊技球は、遊技球ストッパ１１４によって落下を阻まれ、発射レール１０６の後端部上にとどまる。この遊技球を発射ソレノイド１１０の励磁にともなって前進突出する打撃部１１２によって打撃すれば、その遊技球を発射レール１０６に沿って打ち出すことができる。
【００３２】
なお、図３に示すように、中枠３０の背面側では、この（キ）面に対応する部分は相対的に凹陥していて、発射ソレノイド１１０を収容するための発射ソレノイド収容部１１８が形成されており、ここに発射ソレノイド１１０を収容した際には打撃部１１２は孔１２０から前面側に突出する。このように、中枠３０の背面側に形成されている発射ソレノイド収容部１１８に発射ソレノイド１１０を収容する構成であるので、発射ソレノイド１１０の稼働に伴う振動や騒音はパチンコ機１０の前面側（遊技客側）に伝達されにくい。
【００３３】
図２、図６および図７に示すように、（カ）面の左側にはアウト球を集合部１２２に落下させるための通路１２４が形成されており、集合部１２２では、（エ）面と仕切板７３との間の通路を通過してきた遊技球（入賞球）と通路１２４を通過してきた遊技球（アウト球）が集合され、機外（遊技機設置島）へ排出される。
【００３４】
また中枠３０には、上皿出口４４に接続される上皿導入部１２６や下皿出口５０に接続される下皿導入部１２８が設けられている。
次に、中枠３０の背面側について説明する。
図３に示すように、中枠３０の最上部には賞球用の遊技球を貯留するための賞球タンク１３０、ヒューズ等を収容するヒューズボックス１３２が装着される。図４に示すように、このヒューズボックス１３２と中枠３０本体の（ア）面の裏側に対応する部分との間には空間が形成され、この空間は前述のハーネス通路７５となっている。したがって、このハーネス通路７５内に単独や束にされた電線（ハーネス）を通すことができる。このように相対的に凹陥しているハーネス通路７５であるから、そのために中枠３０の厚みが増加することはない。また、周囲よりも凹陥しているので、このハーネス通路７５上に部品を設置することができ、部品配置エリアを制限することもない。
【００３５】
また、これら賞球タンク１３０、ヒューズボックス１３２の下方には、賞球タンク１３０から排出される遊技球を整列させて導く賞球誘導レール１３４、賞球をカウントして払出すために賞球誘導レール１３４の下流端に接続される払出装置１３６が設置される。さらに、払出装置１３６の下側には賞球誘導樋１３８が装着され、賞球誘導樋１３８の下端は、左下壁６８（図２参照）に沿って形成されている賞球落下樋１４０に接続されている。
【００３６】
このような構造の中枠３０に装着される遊技盤２２の概略構造は図５に示されるとおりである。
この図５に示すように、遊技盤２２はぼぼ矩形で、前面側には発射レール１０６上から発射された遊技球を遊技領域２８に導くための弧状のガイドレール１５０が取り付けられている。
【００３７】
遊技盤２２の左上隅には、上側規制部材８８（図２参照）に対応する位置に上隅切欠１５２が設けられている。この上隅切欠１５２の下方には、左上保持部材７８（図２参照）に対応する位置に左上切欠１５４が設けられ、これと対向する位置には、右上保持部材８０（図２参照）に対応する位置に右上切欠１５６が設けられている。また、遊技盤２２の左下隅には、左コーナー部６９に整合する形状の左下切欠１５８が設けられ、右下隅には、右コーナー部７１に整合する形状の右下切欠１６０が設けられている。
【００３８】
遊技盤２２の裏面の上ダボ７４に対応する位置には、上ダボ７４の径とほぼ等しい巾で上ダボ７４の長さをわずかに上回る深さの上ダボ溝１６２が設けられている。同様に、下ダボ７６に対応する位置には、下ダボ７６の径とほぼ等しい巾で下ダボ７６の（イ）面および（ウ）面からの突出長さをわずかに上回る深さの下ダボ溝１６４が設けられている。さらに、遊技盤２２の裏面には、アウト穴１６６に連設して、遊技球の径を十分に上回る深さのアウト溝１６８が設けられている。
【００３９】
遊技盤２２の高さＨは、中枠３０の内枠部６０の縦長（左下保持部材７０の下規制部７０ａと右下保持部材７２の下規制部７２ａとを結ぶ直線からランプ枠６２の下縁６２ａまでの距離（図２、図６、図７参照）を、ぼぼ上隅切欠１５２の深さＫに相当するだけ下回る。そして、遊技盤２２の高さＨは、下規制部７０ａと下規制部７２ａとを結ぶ直線から上側規制部材８８の下縁までの距離とほぼ一致している。
【００４０】
また、遊技盤２２の巾Ｗａは内枠部６０の横長（右上壁６４〜左上壁６６の距離、右下壁６５〜左下壁６８の距離、図２、図６、図７参照）をわずかに下回り、左下切欠１５８と右下切欠１６０との距離Ｗｂは左コーナー部６９〜右コーナー部７１の距離（図２、図６、図７参照）とほぼ一致している。
【００４１】
この遊技盤２２を中枠３０に装着するには、予めレバー１０２、１０４を介して回転部材９４、９６を回転させて、図８（ａ）の状態にしておく。
そして、図６に示されるように、上隅切欠１５２内に上側規制部材８８を、左上切欠１５４内に左上保持部材７８を、右上切欠１５６内に右上保持部材８０を位置させ、上ダボ溝１６２に上ダボ７４を挿通させ、下ダボ溝１６４に下ダボ７６を挿通させて、遊技２２盤を（ア）面、（イ）面および（ウ）面に押し当てるようにする。このとき遊技盤２２の下辺２２ｂは左下保持部材７０および右下保持部材７２よりも上（ランプ枠６２側）にあり、左下切欠１５８および右下切欠１６０は左コーナー部６９および右コーナー部７１よりも上（ランプ枠６２側）にあり、遊技盤２２と左下保持部材７０、右下保持部材７２、右コーナー部６９および左コーナー部７１とが干渉し合うことはない（図９（ａ）参照）。なお、遊技盤２２の上辺２２ａとランプ枠６２の下縁６２ａとは軽く接触する程度である。
【００４２】
この図６に示される状態から、遊技盤２２を下降させる（上辺２２ａから下辺２２ｂに向かう方向に沿って移動させる）と、左上切欠１５４の上側が左上保持部材７８内に、右上切欠１５６の上側が右上保持部材８０内に、左下切欠１５８と下辺２２ｂとの角部分が左下保持部材７０内に、右下切欠１６０と下辺２２ｂとの角部分が右下保持部材７２内に嵌入する（図９（ｂ）参照）。そして、左下切欠１５８は左コーナー部６９に密接し、右下切欠１６０は右コーナー部７１に密接する。また、上ダボ溝１６２は上ダボ７４との相対位置を変え、下ダボ溝１６４は下ダボ７６との相対位置を変えるが、上ダボ７４は上ダボ溝１６２に挿通し、下ダボ７６は下ダボ溝１６４に挿通したままである。
【００４３】
つづいて、レバー１０２、１０４を上向きに回して回転部材９４、９６を図８（ｂ）に示される状態にすると、回転部材９４、９６が板バネ９０、９２を遊技盤２２に向かって押圧する。この押圧力は、遊技盤２２を前規制部７０ｂ、７２ｂ、７８ｂ、８０ｂに押しつける力として作用する。
【００４４】
さらに、上側規制部材８８を１８０度回転させて、図６に示される状態から図７に示される状態にすると、遊技盤２２は上向き（ランプ枠６２に向かう方法）の移動を規制される。こうして遊技盤２２の装着作業が完了する。これにより、遊技盤２２は、左下切欠１５８と左コーナー部６９との接触、右下切欠１６０と右コーナー部７１との接触、上ダボ溝１６２と上ダボ７４との接触および下ダボ溝１６４と下ダボ７６との接触により、左右方向（遊技盤２２の盤面に沿う方向）の移動を規制される。なお、左下切欠１５８と左コーナー部６９との接触、右下切欠１６０と右コーナー部７１との接触は、遊技盤２２の下方への移動（発射レール１０６側への移動）も規制している。
【００４５】
また（ア）面、（イ）面および（ウ）面と左上保持部材７８（前規制部７８ｂ）、右上保持部材８０（前規制部８０ｂ）、左下保持部材７０（前規制部７０ｂ）および右下保持部材７２（前規制部７２ｂ）により前後方向（遊技盤２２の厚さ方向）の移動を規制されているが、回転部材９４、９６および板バネ９０、９２による押圧力によって前規制部７０ｂ、７２ｂ、７８ｂ、８０ｂに押しつけられることにより、特に遊技面の位置を正確にされる。この遊技盤２２の前面の位置が正確になると、発射レール１０６と遊技盤２２の前面との相対位置も正確に確保されるので、発射レール１０６とガイドレール１５０との位置関係も正確になり、発射された遊技球の軌道も良好となる。
【００４６】
さらに、遊技盤２２は、左上保持部材７８（下規制部７８ａ）、右上保持部材８０（下規制部８０ａ）、左下保持部材７０（下規制部７０ａ）および右下保持部材７２（下規制部７２ａ）により下方への移動を規制され、上側規制部材８８により上方への移動を規制される。
【００４７】
こうして遊技盤２２は、前後、左右、上下の移動を規制され、中枠３０に対する相対位置を固定される。
このように、遊技盤２２を前面側から中枠３０に挿入して（ア）面、（イ）面、（ウ）面に押し当ててから、下に移動させるだけでも、遊技盤２２を中枠３０に装着できる。したがって、遊技盤２２を固定するために圧締等の機械的な締付を必要としない。締付のための可動部材を含む機械的な構造が不要となるので、中枠３０自体の構造は単純となり、パチンコ機の組立工程の簡略化や組立工数の削減が可能となる。
【００４８】
そして、回転部材９４、９６と板バネ９０、９２との働きにより遊技盤２２の前面の位置を正確なのものとできるので、発射レール１０６とガイドレール１５０との位置関係も正確になり、発射された遊技球の軌道も良好となる。
また、パチンコ機１０が立っている状態なら、遊技盤２２は、その自重により上方へは移動しないのであるが、製造時、運搬時、取付時等などにパチンコ機１０の姿勢が変化することがあり、その場合には遊技盤２２の自重だけでは上方（ランプ枠６２側）への移動を規制できない。そこで上側規制部材８８を設けておけば、パチンコ機１０がいかなる姿勢をとっても、遊技盤２２の上方（ランプ枠６２側）への移動を規制できる。
【００４９】
以上、具体例に従って、本発明の実施の形態について説明したが、本発明はこのような具体例に限定されるものではなく、本発明の要旨を逸脱しない範囲でさまざまに実施できることは言うまでもない。
【００５０】
【発明の効果】
以上説明したように、請求項１の弾球遊技機の中枠は、遊技盤を中枠の前側から内枠部内に挿入して落とし込むだけで、遊技盤は、背面規制部材と前面規制部材とにより軸方向（前後方向）の移動を規制され、下側規制部材により下方への移動を規制され、左規制部材と右規制部材とにより左右方向の移動を規制されて、中枠に装着されるので、装着は容易である。よって、弾球遊技機の組立工程の簡略化や組立工数の削減が可能となる。
また、押圧機構を備えたことにより、発射レールとガイドレールとの位置関係を正確にできるから、発射された遊技球の軌道も良好となる。
【図面の簡単な説明】
【図１】具体例のパチンコ機の正面図である。
【図２】具体例のパチンコ機の中枠の正面図である。
【図３】具体例のパチンコ機の中枠の背面図である。
【図４】具体例のパチンコ機の中枠の側面図である。
【図５】具体例のパチンコ機の遊技盤の正面図である。
【図６】具体例のパチンコ機の中枠に遊技盤を装着する手順の説明図である。
【図７】具体例のパチンコ機の中枠に遊技盤を装着する手順の説明図である。
【図８】具体例のパチンコ機の中枠における板バネの説明図であり、図８（ａ）は回転部材が接触していない状態の説明図、図８（ｂ）は回転部材によって押圧されている状態の説明図である。
【図９】具体例のパチンコ機の中枠における左上保持部材、右上保持部材、左下保持部材および右下保持部材と遊技盤との相対位置の説明図であり、図９（ａ）は遊技盤を嵌入させる前の状態の説明図、図９（ｂ）は遊技盤を嵌入させた状態の説明図である。
【符号の説明】
１０・・・パチンコ機（弾球遊技機）、２２・・・遊技盤、２４・・・ガラス保持枠、２６・・・透明板、２８・・・遊技領域、３０・・・中枠、３１、３３・・・軸受部、３４・・・外枠、３６・・・ヒンジ金具、３６ａ・・・ヒンジピン、４０・・・上皿、４６・・・下皿、５６・・・発射ハンドル、５８・・・窓、６０・・・内枠部（背面規制部材）、６２・・・ランプ枠、６４・・・右上壁、６５・・・右下壁、６６・・・左上壁、６８・・・左下壁、６９・・・左コーナー部（下側規制部材、左右規制部材）、７０・・・左下保持部材（下側規制部材、前面規制部材）、７０ａ、７２ａ、７８ａ、８０ａ・・・下規制部（下側規制部材）、７０ｂ、７２ｂ、７８ｂ、８０ｂ・・・前規制部（前面規制部材）、７１・・・右コーナー部（下側規制部材、左右規制部材）、７２・・・右下保持部材（下側規制部材、前面規制部材）、７４・・・上ダボ（ダボ、左右規制部材）、７５・・・ハーネス通路、７６・・・下ダボ（ダボ、左右規制部材）、７８・・・左上保持部材（下側規制部材、前面規制部材）、８０・・・右上保持部材（下側規制部材、前面規制部材）、８８・・・上側規制部材、９０、９２・・・板バネ（押圧機構）、９４、９６・・・回転部材（押圧機構）、１０２、１０４・・・レバー（押圧機構）、１０６・・・発射レール、１１０・・・発射ソレノイド（発射装置）、１１８・・・発射ソレノイド収容部、１３０・・・賞球タンク、１３２・・・ヒューズボックス、１３４・・・賞球誘導レール、１３６・・・払出装置（遊技球払出装置）、１３８・・・賞球誘導樋、１４０・・・賞球落下樋、１５０・・・ガイドレール、１５２・・・上隅切欠、１５４・・・左上切欠、１５６・・・右上切欠、１５８・・・左下切欠、１６０・・・右下切欠、１６２・・・上ダボ溝（ダボ溝）、１６４・・・下ダボ溝（ダボ溝）、１６６・・・アウト穴、（ア）、（イ）、（ウ）・・・面（背面規制部材）。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a middle frame of a ball game machine.
[0002]
[Prior art]
Conventionally, in a ball game machine, a rectangular outer frame and a front frame attached to the outer frame so as to be capable of opening and closing are provided. A launching device is attached to the lower part of the front frame, and the game board is held on the front frame via the game board attachment frame. In addition, a prize ball tank, a prize ball payout device, a prize ball passage, and the like are attached to a mechanism board attached to the back side of the game board. In other words, the game board is sandwiched between the game board mounting frame and the mechanism board, and these are supported by the front frame.
[0003]
However, since the structure itself is complicated in such a so-called multilayer structure, it is an integrated plastic molded product, which is a conventional front frame, game board mounting frame, and middle frame functioning as a mechanism board. Use is suggested. In addition, the integrated plastic molded product does not necessarily mean integral molding, but includes a concept including a case in which the plastic molded product is integrated by, for example, adhesion.
[0004]
[Problems to be solved by the invention]
  The use of this middle frame has simplified the frame structure inside the ball and ball game machine and reduced the number of processes and man-hours required for assembly, etc., but the connection structure itself between the middle frame and the game board May changeThere wasn't.
[0005]
  The object of the present invention is to further improve the advantage of the inner frame of the unitary structure,For details, seeIt is to provide an intermediate frame that can simplify the assembly process and reduce the number of assembly steps.
[0006]
[Means for Solving the Problems]
  As a means for solving the above-mentioned problems, the configuration described in claim 1 can be adopted. The inner frame of the ball game machine according to claim 1 is arranged on the back side of the inner frame portion having a longitudinal length exceeding the height of the game board and a lateral length greater than the width of the game board. A back surface regulating member that contacts the back surface of the game board and restricts movement of the game board to the back side, contacts the bottom surface of the game board, supports the load of the game board, and lowers the game board Front regulation that protrudes toward the inside of the inner frame portion and contacts the front surface of the game board while maintaining a distance corresponding to the thickness of the game board between the lower regulation member that regulates movement and the back regulation member A member, a left restricting member that contacts the left side of the game board and restricts leftward movement, and a right restricting member that contacts the right side of the game board and restricts rightward movementAs part of the integrated plastic moldingBy providing, the gaming board is inserted into the inner frame portion from the front side of the middle frame of the ball game machine, avoiding the front regulating member and pressed against the back regulating member, and then the gaming board is If it is moved downward, the gaming board is fitted between the back regulating member and the front regulating member, the gaming board is supported by the lower regulating member, and the left regulating member is moved in the left direction of the gaming board. The game board can be mounted by restricting the right movement of the game board by restricting the right movement of the game board.
[0007]
  Just by inserting the game board into the inner frame part from the front side of the middle frame and dropping it down, the game board is restricted from moving in the axial direction (front-rear direction) by the rear regulating member and the front regulating member, and is lowered by the lower regulating member. Is restricted from moving toA left regulating member and a right regulating memberThe movement in the left and right direction is restricted by theSince it is mounted, mounting is easy.
[0008]
  The inner frame itselfLeft or rightIt may also serve as a restricting member, which will further simplify the structure.I can plan.
[0011]
  In addition, the inner frame of the ball game machine according to claim 1 is provided with a pressing mechanism for pressing the back surface of the mounted game board toward the front regulating member.is there. The pressing mechanism includes a flat spring corresponding to the scraping surface in a shape in which a part of a cylinder is scraped along a pair of parallel surfaces, and a leaf spring whose upper end is fixed with a screw and whose lower end is a free end. And a circular arc portion corresponding to the remainder of the scraping, and a rotation position about the axis of the cylinder so that the circular arc portion faces the leaf spring and presses the leaf spring; and It consists of a rotating member that is variable to a pressing release position that does not contact the leaf spring with the flat portion facing the leaf spring, and a lever attached to the rotating member,
  When the rotating member is rotated through the lever to the pressing position, the leaf spring pressed by the rotating member presses the back surface of the game board toward the front regulating member, and the lever If the rotation member is rotated through the position to the pressure release position, the pressure on the back surface of the game board by the leaf spring is released.Therefore, it is possible to reliably define the position of the front surface of the game board by pressing the back surface of the game board with the pressing mechanism and bringing the front surface of the game board into contact with the front regulating member.
[0012]
In a ball game machine, it is important that the launched game ball accurately reaches the surface of the game board. To that end, a launch rail that regulates the direction immediately after the launch of the game ball and an arc shape that forms the trajectory thereafter The positional relationship with the guide rail is extremely important. Normally, the firing rail is attached to the front side of the middle frame and the guide rail is attached to the front side of the game board. Therefore, in order to accurately position the firing rail and the guide rail, the front side of the middle frame and the game board is used. It is necessary to make the relative position of and accurate.
[0013]
  According to the first aspect of the present invention, since the game board is pressed to the front side by the pressing mechanism and the front surface of the game board is pressed against the front regulation member, the position of the surface of the front regulation member that contacts the game board is accurately determined. As long as this is done, the relative position between the middle frame and the front surface of the game board can be accurately maintained. Therefore, the positional relationship between the launch rail and the guide rail is also accurate, and the trajectory of the launched game ball is alsoIt becomes good.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the invention will be described according to a preferred specific example of the present invention.
[0015]
【Concrete example】
As shown in FIG. 1, a pachinko machine 10 as a ball game machine includes a variable symbol display device 12, a start winning port 14 for starting the variable symbol display device 12, a large winning port 16 opened at the time of a big hit, and a normal winning port. 18, a windmill 20, a known game board 22 having an out hole 21 for discharging an out ball, and the like are provided.
[0016]
The front side of the game board 22 is almost entirely covered with a double transparent plate 26 held by a plastic glass holding frame 24, and a game area 28 is formed between the game board 22 and the transparent board 26. Has been. Further, the glass holding frame 24 is entirely attached to a plastic middle frame 30 so as to be freely opened and closed, and a big hit lamp 32 which is turned on when a so-called big hit state occurs is assembled to the upper portion of the middle frame 30. .
[0017]
Further, as shown in FIGS. 1 and 4, the middle frame 30 is held in a freely openable / closable manner with its upper side 34 a surrounded by a wooden outer side 34 a and the other three sides surrounded by a plastic outer frame 34. Specifically, hinge pins 36a projecting from hinge fittings 36, 36 provided at upper and lower corners of the outer frame 34 are inserted into upper and lower bearing portions 31, 33 of the middle frame 30, and the middle frame 30 is pivoted on the hinge pin 36a. It can be swung and opened and closed freely. As shown in FIG. 1, the middle frame 30 that is closed with respect to the outer frame 34 is locked and unlocked at the right side of the middle frame 30 in the drawing, and is also closed with respect to the middle frame 30. A lock 38 for locking and unlocking the glass holding frame 24 is mounted.
[0018]
As shown in FIG. 1, on the front side of the middle frame 30, a dish door 42 having an upper dish 40 is attached below the glass holding frame 24 through a hinge (not shown). An upper dish outlet 44 serving as an outlet for game balls discharged from the pachinko machine 10 is opened in the upper dish 40. During normal use, the dish door 42 is locked on the right back side and held in a closed state, and the upper side portion is pressed and prevented from being opened by the glass holding frame 24. Therefore, in order to open the tray door 42, it is necessary to open the glass holding frame 24 and unlock the right back side.
[0019]
Below the dish door 42, a lower dish member 48 having a lower dish 46 is fixed to the front side of the middle frame 30, and the lower dish 46 serves as an outlet for game balls discharged from the pachinko machine 10. The dish outlet 50 is open. A slide plate 52 is provided at the bottom of the lower plate 46, and the game plate can be discharged by sliding the slide plate 52 to open a discharge hole (not shown). In addition, the lower plate member 48 is provided with a speaker surface 54 composed of a plurality of small holes, and a speaker (not shown) that emits sound according to the gaming state is mounted on the back side of the speaker surface 54.
[0020]
Further, the lower plate member 48 is provided with a firing handle 56 for operating a firing solenoid 110 (not shown in FIG. 1; see FIG. 2) for firing a game ball supplied from the upper plate 40 into the game area 28. Has been.
Next, the structure of the middle frame 30 will be described.
[0021]
The middle frame 30 is a plastic molded product and is integrated as shown in FIG. 2, 3, 6, and 7, a substantially trapezoidal window 58 is provided at the center portion of the middle frame 30, and the outer periphery of the window 58 extends along the periphery as shown in FIG. 2. An inner frame portion 60 is provided.
[0022]
As shown in FIG. 2, the upper side of the inner frame portion 60 is defined by the lower edge 62a of the lamp frame 62, the right side is defined by the upper right wall 64 and the lower right wall 65, and the left side is defined by the upper left wall 66 and the lower left wall 68. It is prescribed. Further, the lower side is a left corner portion 69 provided continuously with the lower end portion of the left lower wall 68, a left lower holding member 70 protruding from the left corner portion 69, a right corner portion 71 and a right corner portion 71 provided continuously with the right lower wall 65. This is a range defined by a lower right holding member 72 that protrudes from the lower left holding member 70 and pairs with the lower left holding member 70.
[0023]
In this inner frame portion 60, the (a) surface that continues from directly under the lamp frame 62 to the upper right wall 64 and the lower left wall 68, the (A) surface near the lower right holding member 72, and the lower left wall 68. The extended surfaces of the (c) surface that follows the vicinity of the lower left holding member 70 along the line substantially coincide with each other. In other words, it is a common “face-to-face”, and when the middle frame 30 is laid along the horizontal plane as shown in the figure, the (A) plane, (B) plane and (C) plane The height matches. And in the same state, the (A) plane, (U) plane, (B) plane and (B) plane surrounded by the window 58 are (A) plane, (B) plane and (C) plane. Is one step lower. In the range from the broken line 73a to the broken line 73b on the (d) plane, a partition plate 73 that is substantially flush with the (a) and (c) planes is mounted. The path between the plane (d) and the partition plate 73 is a path for winning balls, and an out-sphere path is formed on the front side of the partition plate 73.
[0024]
The (a) plane surrounded by the (A) plane, the upper left wall 66 and the lower left wall 68 is also lower than the (A) plane, (B) plane and (U) plane. The lower left part projects relatively to the front side. As shown in FIG. 3, on the back side of the middle frame 30, this portion is relatively recessed to form a harness passage 75.
[0025]
As shown in FIGS. 2, 6 and 7, a cylindrical upper dowel 74 is erected almost perpendicularly to the (A) plane slightly from the upper center of the (A) plane. The same lower dowel 76 is also erected in this.
Further, the upper left wall 66 is provided with an upper left holding member 78 that protrudes to the (A) plane side, and the upper right holding member 80 that is paired with the upper left holding member 78 is provided on the upper right wall 64.
[0026]
As shown in FIGS. 2, 6, 7, and 9, the lower left holding member 70, the lower right holding member 72, the upper left holding member 78, and the upper right holding member 80 include the (a) surface, the (A) surface, ) The lower restricting portions 70a, 72a, 78a, 80a that are substantially perpendicular to the surface and the front restricting portions 70b, 72b, 78b, 80b substantially parallel to the (a) surface, the (a) surface, and the (c) surface. As shown in FIG. 9, the thickness of the game board 22 is substantially the same between the front restricting portions 70b, 72b, 78b, and 80b and the (a), (b), and (c) surfaces. A void is formed.
[0027]
As shown in FIGS. 2, 6, and 7, an upper regulating member 88 is attached to the lamp frame 62 via a shaft pin 86 erected on the lower edge 62 a. The upper restricting member 88 is rotatable about a shaft pin 86 between a position shown in FIGS. 2 and 6 and a position shown in FIG.
[0028]
As shown in FIG. 2 and FIG. 8, one leaf spring 90, 92 is connected to the connecting portion between the (A) surface and the (A) surface and the connecting portion between the (A) surface and the (C) surface, respectively. The upper end side is fixed with screws and the lower end side is attached as a free end. Rotating members 94 and 96 are disposed on the back side of the plate springs 90 and 92.
[0029]
As shown in FIG. 8, a part of a cylinder is scraped along a pair of parallel planes, and a pair of flat surface portions F and a pair of arc portions C are provided. These rotating members 94 and 96 are rotatable around the rotation shaft 98, and contact the leaf springs 90 and 92 when the flat surface portion F faces the leaf springs 90 and 92 as shown in FIG. However, in a state where the arc portion C faces the leaf springs 90 and 92 as shown in FIG. 8B, the leaf springs 90 and 92 are abutted against and pressed.
[0030]
As shown in FIG. 2, levers 102 and 104 are attached to the rotating members 94 and 96, and the rotating members 94 and 96 can be rotated via the levers 102 and 104. The levers 102 and 104 can be oscillated and displaced within a range of about 90 degrees about the rotation shaft 98 shown in FIG. 8, and when the levers 102 and 104 are moved to the raised position shown in FIGS. When the U position shown in FIG. 6 is reached and the lowered position shown in FIG. 6 is set, the axis line becomes the D position shown in FIG.
[0031]
As shown in FIGS. 2, 6, and 7, the lower side of the surface (D) is provided with a surface (F) across the surface (A). The firing rail 106 is attached to this (F) surface, and the striking portion 112 of the firing solenoid 110 installed on the back side of the (K) surface is opposed to the rear end of the firing rail 106. The game ball placed on the firing rail 106 is prevented from falling by the game ball stopper 114 and remains on the rear end portion of the firing rail 106. If the game ball is hit by the hitting portion 112 that protrudes forward with the excitation of the launch solenoid 110, the game ball can be launched along the launch rail 106.
[0032]
As shown in FIG. 3, on the back side of the middle frame 30, a portion corresponding to this (K) surface is relatively recessed, and a firing solenoid housing portion 118 for housing the firing solenoid 110 is formed. When the firing solenoid 110 is accommodated here, the striking portion 112 projects from the hole 120 to the front side. As described above, since the firing solenoid 110 is housed in the firing solenoid housing portion 118 formed on the back side of the middle frame 30, vibrations and noise associated with the operation of the firing solenoid 110 are caused by the front side of the pachinko machine 10 ( Difficult to be transmitted to the player side).
[0033]
As shown in FIGS. 2, 6, and 7, a passage 124 is provided on the left side of the (F) surface to allow the out ball to drop into the collecting portion 122. The game balls (winning balls) that have passed through the passage between the partition plate 73 and the game balls (out balls) that have passed through the passage 124 are gathered and discharged to the outside (the gaming machine installation island).
[0034]
Further, the middle frame 30 is provided with an upper plate introducing portion 126 connected to the upper plate outlet 44 and a lower plate introducing portion 128 connected to the lower plate outlet 50.
Next, the back side of the middle frame 30 will be described.
As shown in FIG. 3, at the top of the middle frame 30, a prize ball tank 130 for storing game balls for prize balls and a fuse box 132 for storing fuses are mounted. As shown in FIG. 4, a space is formed between the fuse box 132 and a portion corresponding to the back side of the (A) surface of the middle frame 30 main body, and this space is the harness passage 75 described above. Therefore, the wires (harnesses) that are single or bundled can be passed through the harness passage 75. Since the harness passage 75 is relatively recessed as described above, the thickness of the middle frame 30 does not increase. Moreover, since it is recessed rather than the circumference | surroundings, components can be installed on this harness channel | path 75, and a components arrangement | positioning area is not restrict | limited.
[0035]
Further, below the prize ball tank 130 and the fuse box 132, a prize ball guide rail 134 for guiding the game balls discharged from the prize ball tank 130 in an aligned manner, and a prize ball guidance for counting and paying out the prize balls. A payout device 136 connected to the downstream end of the rail 134 is installed. Further, a prize ball guide bar 138 is mounted on the lower side of the payout device 136, and the lower end of the prize ball guide bar 138 is connected to a prize ball drop bar 140 formed along the left lower wall 68 (see FIG. 2). Has been.
[0036]
The schematic structure of the game board 22 mounted on the middle frame 30 having such a structure is as shown in FIG.
As shown in FIG. 5, the game board 22 has a substantially rectangular shape, and an arc-shaped guide rail 150 for guiding a game ball launched from the launch rail 106 to the game area 28 is attached to the front side.
[0037]
In the upper left corner of the game board 22, an upper corner notch 152 is provided at a position corresponding to the upper regulating member 88 (see FIG. 2). Below the upper corner notch 152, an upper left notch 154 is provided at a position corresponding to the upper left holding member 78 (see FIG. 2), and at an opposite position to the upper right holding member 80 (see FIG. 2). An upper right notch 156 is provided at a position to be used. Further, a lower left notch 158 shaped to match the left corner portion 69 is provided at the lower left corner of the game board 22, and a lower right notch 160 shaped to match the right corner portion 71 is provided at the lower right corner. .
[0038]
At a position corresponding to the upper dowel 74 on the back surface of the game board 22, an upper dowel groove 162 having a width substantially equal to the diameter of the upper dowel 74 and slightly exceeding the length of the upper dowel 74 is provided. Similarly, at a position corresponding to the lower dowel 76, the lower dowel has a width substantially equal to the diameter of the lower dowel 76 and a depth slightly exceeding the protruding length of the lower dowel 76 from the (a) and (c) surfaces. A groove 164 is provided. Further, an out groove 168 having a depth sufficiently larger than the diameter of the game ball is provided on the back surface of the game board 22 so as to be connected to the out hole 166.
[0039]
The height H of the game board 22 is the length of the inner frame portion 60 of the middle frame 30 (from the straight line connecting the lower restriction portion 70a of the lower left holding member 70 and the lower restriction portion 72a of the lower right holding member 72, below the ramp frame 62. The distance to the edge 62a (see FIGS. 2, 6, and 7) is less than the depth K of the upper corner cutout 152. The height H of the game board 22 is lower than that of the lower restricting portion 70a. The distance from the straight line connecting the restricting portion 72a to the lower edge of the upper restricting member 88 is substantially the same.
[0040]
Further, the width Wa of the game board 22 is slightly longer than the horizontal length of the inner frame portion 60 (the distance from the upper right wall 64 to the upper left wall 66, the distance from the lower right wall 65 to the lower left wall 68, see FIGS. 2, 6, and 7). The distance Wb between the lower corner, the lower left notch 158 and the lower right notch 160 is substantially the same as the distance from the left corner portion 69 to the right corner portion 71 (see FIGS. 2, 6, and 7).
[0041]
In order to attach the game board 22 to the middle frame 30, the rotary members 94 and 96 are rotated in advance via the levers 102 and 104, and the state shown in FIG.
Then, as shown in FIG. 6, the upper regulating member 88 is positioned in the upper corner notch 152, the upper left holding member 78 is positioned in the upper left notch 154, and the upper right holding member 80 is positioned in the upper right notch 156. The upper dowel 74 is inserted through the lower dowel groove 164, and the lower dowel 76 is inserted through the lower dowel groove 164 so that the 22 games are pressed against the (a), (b) and (c) surfaces. At this time, the lower side 22 b of the game board 22 is above the lower left holding member 70 and the lower right holding member 72 (on the lamp frame 62 side), and the lower left notch 158 and the lower right notch 160 are from the left corner portion 69 and the right corner portion 71. And the gaming board 22 and the lower left holding member 70, the lower right holding member 72, the right corner portion 69 and the left corner portion 71 do not interfere with each other (see FIG. 9A). ). Note that the upper side 22a of the game board 22 and the lower edge 62a of the lamp frame 62 are lightly in contact with each other.
[0042]
When the game board 22 is lowered from the state shown in FIG. 6 (moved along the direction from the upper side 22a to the lower side 22b), the upper side of the upper left notch 154 is in the upper left holding member 78 and the upper right notch 156 is 9 is inserted into the lower right holding member 80, the corner between the lower left notch 158 and the lower side 22b is inserted into the lower left holding member 70, and the corner between the lower right cut 160 and the lower side 22b is inserted into the lower right holding member 72 (FIG. 9). (See (b)). The lower left notch 158 is in close contact with the left corner portion 69, and the lower right notch 160 is in close contact with the right corner portion 71. The upper dowel groove 162 changes the relative position with the upper dowel 74, and the lower dowel groove 164 changes the relative position with the lower dowel 76, but the upper dowel 74 is inserted into the upper dowel groove 162, and the lower dowel 76 is in the lower position. The dowel groove 164 remains inserted.
[0043]
Subsequently, when the levers 102 and 104 are turned upward to bring the rotating members 94 and 96 into the state shown in FIG. 8B, the rotating members 94 and 96 press the leaf springs 90 and 92 toward the game board 22. . This pressing force acts as a force for pressing the game board 22 against the front regulating portions 70b, 72b, 78b, 80b.
[0044]
  Further, when the upper regulating member 88 is rotated 180 degrees from the state shown in FIG. 6 to the state shown in FIG. 7, the game board 22 is restricted from moving upward (a method toward the ramp frame 62). Thus, the mounting operation of the game board 22 is completed. Thereby, the game board 22 contacts the lower left notch 158 and the left corner portion 69, contacts the lower right notch 160 and the right corner portion 71, contacts the upper dowel groove 162 and the upper dowel 74, and the lower dowel groove 164. The contact with the lower dowel 76 restricts the movement in the left-right direction (the direction along the board surface of the game board 22). Note that the contact between the lower left notch 158 and the left corner portion 69 and the contact between the lower right notch 160 and the right corner portion 71 are theDownMovement (movement toward the firing rail 106 side) is also restricted.
[0045]
Further, the (a) surface, the (A) surface, the (U) surface, the upper left holding member 78 (front restricting portion 78b), the upper right holding member 80 (front restricting portion 80b), the lower left holding member 70 (front restricting portion 70b) and the right Although movement in the front-rear direction (thickness direction of the game board 22) is restricted by the lower holding member 72 (front restricting portion 72b), the front restricting portion 70b is controlled by the pressing force of the rotating members 94 and 96 and the leaf springs 90 and 92. , 72b, 78b, and 80b, the position of the game surface is particularly accurate. When the position of the front surface of the game board 22 is accurate, the relative position between the launch rail 106 and the front face of the game board 22 is also ensured accurately, so the positional relationship between the launch rail 106 and the guide rail 150 is also accurate. The trajectory of the launched game ball is also good.
[0046]
Further, the game board 22 includes an upper left holding member 78 (lower restricting portion 78a), an upper right holding member 80 (lower restricting portion 80a), a lower left holding member 70 (lower restricting portion 70a), and a lower right holding member 72 (lower restricting portion 72a). ) Is regulated by the upper regulating member 88, and upward movement is regulated by the upper regulating member 88.
[0047]
Thus, the game board 22 is restricted from moving back and forth, left and right, and up and down, and the relative position with respect to the middle frame 30 is fixed.
In this way, the game board 22 is inserted into the middle frame 30 from the front side, pressed against the (a), (b), and (c) surfaces, and then moved down to bring the game board 22 into the middle. It can be attached to the frame 30. Therefore, no mechanical fastening such as pressure fastening is required to fix the game board 22. Since a mechanical structure including a movable member for fastening is not required, the structure of the inner frame 30 itself is simplified, and the assembly process of the pachinko machine can be simplified and the number of assembly steps can be reduced.
[0048]
Since the position of the front surface of the game board 22 can be made accurate by the action of the rotating members 94 and 96 and the leaf springs 90 and 92, the positional relationship between the firing rail 106 and the guide rail 150 is also accurate and fired. The trajectory of the game balls will also be good.
Further, when the pachinko machine 10 is standing, the game board 22 does not move upward due to its own weight, but the posture of the pachinko machine 10 may change during manufacturing, transportation, installation, or the like. In this case, the upward movement (the lamp frame 62 side) cannot be restricted by the weight of the game board 22 alone. Therefore, if the upper restricting member 88 is provided, the upward movement of the game board 22 (the lamp frame 62 side) can be restricted regardless of the posture of the pachinko machine 10.
[0049]
As mentioned above, although embodiment of this invention was described according to the specific example, this invention is not limited to such a specific example, and it cannot be overemphasized that it can implement variously in the range which does not deviate from the summary of this invention.
[0050]
【The invention's effect】
  As described above, the inner frame of the ball game machine of claim 1 isJust by inserting the game board into the inner frame part from the front side of the middle frame and dropping it down, the game board is restricted from moving in the axial direction (front-rear direction) by the rear regulating member and the front regulating member, and is lowered by the lower regulating member. The movement in the right and left directions is restricted by the left restriction member and the right restriction member, and the attachment to the middle frame is easy. Therefore, it is possible to simplify the assembly process of the ball game machine and reduce the number of assembly steps.
  Further, since the positional relationship between the launch rail and the guide rail can be accurately provided by providing the pressing mechanism, the trajectory of the launched game ball is also good.
[Brief description of the drawings]
FIG. 1 is a front view of a specific example of a pachinko machine.
FIG. 2 is a front view of a middle frame of a specific example of a pachinko machine.
FIG. 3 is a rear view of a middle frame of a specific example of a pachinko machine.
FIG. 4 is a side view of a middle frame of a specific example of a pachinko machine.
FIG. 5 is a front view of a game board of a pachinko machine of a specific example.
FIG. 6 is an explanatory diagram of a procedure for mounting a game board on the inner frame of a pachinko machine of a specific example;
FIG. 7 is an explanatory diagram of a procedure for mounting a game board on the inner frame of a pachinko machine of a specific example;
8A and 8B are explanatory views of a leaf spring in the middle frame of the pachinko machine of a specific example, FIG. 8A is an explanatory view in a state where the rotating member is not in contact, and FIG. 8B is pressed by the rotating member. FIG.
FIG. 9 is an explanatory diagram of the relative positions of the upper left holding member, the upper right holding member, the lower left holding member, and the lower right holding member and the game board in the middle frame of the pachinko machine of a specific example, FIG. FIG. 9B is an explanatory diagram of a state in which the game board is inserted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Pachinko machine (ball game machine), 22 ... Game board, 24 ... Glass holding frame, 26 ... Transparent plate, 28 ... Game area, 30 ... Middle frame, 31 , 33 ... Bearing portion, 34 ... Outer frame, 36 ... Hinge bracket, 36a ... Hinge pin, 40 ... Upper plate, 46 ... Lower plate, 56 ... Launch handle, 58 ... Window, 60 ... Inner frame (back regulating member), 62 ... Lamp frame, 64 ... Upper right wall, 65 ... Lower right wall, 66 ... Upper left wall, 68 ... -Lower left wall, 69 ... left corner (lower regulating member, left and right regulating member), 70 ... lower left holding member (lower regulating member, front regulating member), 70a, 72a, 78a, 80a ... Lower regulating part (lower regulating member), 70b, 72b, 78b, 80b ... front regulating part (front regulating member), 71 ... right corner (Lower regulating member, left and right regulating member), 72 .. lower right holding member (lower regulating member, front regulating member), 74... Upper dowel (dowel, left and right regulating member), 75 .. harness path 76 ... Lower dowel (Dowel, left / right regulating member), 78 ... Upper left holding member (lower regulating member, front regulating member), 80 ... Upper right holding member (lower regulating member, front regulating member) , 88... Upper regulating member, 90, 92... Leaf spring (pressing mechanism), 94, 96... Rotating member (pressing mechanism), 102, 104. -Launch rail, 110 ... Launch solenoid (launch device), 118 ... Launch solenoid housing, 130 ... Prize ball tank, 132 ... Fuse box, 134 ... Prize ball guide rail, 136 ..Dispensing device (game ball dispensing device), 138・ Prize ball guide rod, 140 ... Prize ball drop rod, 150 ... Guide rail, 152 ... Upper corner notch, 154 ... Upper left notch, 156 ... Upper right notch, 158 ... Lower left notch , 160 ... lower right notch, 162 ... upper dowel groove (dowel groove), 164 ... lower dowel groove (dowel groove), 166 ... out hole, (A), (I), (U )... Surface (back regulating member).

Claims

An integrated plastic molded product, which is housed in an outer frame of a ball game machine and holds a game board, a launching device and a game ball payout device in the inner frame of the ball game machine,
An inner frame portion having a longitudinal length exceeding the height of the game board and a lateral length greater than the width of the game board;
A back regulating member that is arranged on the back side of the inner frame portion and contacts the back of the game board to regulate the movement of the game board to the back side;
A lower regulating member that contacts the lower surface of the gaming board and supports the load of the gaming board and regulates the downward movement of the gaming board;
A front regulating member that protrudes toward the inside of the inner frame portion and contacts the front surface of the gaming board while maintaining a distance corresponding to the thickness of the gaming board between the back regulating member and
A left regulating member that contacts the left side of the game board and regulates leftward movement;
With a right regulating member that contacts the right side surface of the game board and regulates movement in the right direction,
The game board can be moved downward from the front side of the middle frame of the ball game machine while avoiding the front regulation member and being inserted into the inner frame and pressed against the back regulation member. For example, the gaming board is fitted between the back regulating member and the front regulating member, the gaming board is supported by the lower regulating member, and the left regulating member regulates the leftward movement of the gaming board. , Allowing the right restricting member to be attached to the game board by restricting the rightward movement of the game board,
A pressing mechanism that presses the back of the mounted game board toward the front regulating member ;
A leaf spring whose upper end is fixed with a screw and whose lower end is a free end;
A plane portion corresponding to the scraping surface and an arc portion corresponding to the remainder of the scraping are provided in a shape in which a part of the cylinder is scraped along a pair of parallel surfaces, and the axis of the cylinder is centered. Rotating member that is variable between a pressing position that presses the leaf spring by rotating the arc portion facing the leaf spring and a pressing release position that faces the leaf spring and does not contact the leaf spring by rotating. When,
A lever attached to the rotating member;
If the rotating member is rotated through the lever to the pressing position, the leaf spring pressed by the rotating member presses the back of the game board toward the front regulating member,
If the rotating member is rotated through the lever to the pressing release position, the pressure on the back of the game board by the leaf spring is released.
An inner frame of a ball game machine, which is provided with a pressing mechanism .