JP4382200B2

JP4382200B2 - Anti-return tool

Info

Publication number: JP4382200B2
Application number: JP21379699A
Authority: JP
Inventors: 稔三輪
Original assignee: 有限会社愛和ライト
Priority date: 1999-07-28
Filing date: 1999-07-28
Publication date: 2009-12-09
Anticipated expiration: 2019-07-28
Also published as: JP2001037978A

Description

【０００１】
【発明の属する技術分野】
本発明は、弾球遊技機の技術分野に属し、詳しくは遊技領域から誘導路への遊技球の戻りを防止するための戻り防止具に関する。
【０００２】
【従来の技術】
パチンコ機などの弾球遊技機では、例えば外側誘導レールと内側誘導レールとによって誘導路を形成し、発射装置から発射された遊技球をその誘導路によって遊技盤上の遊技領域に誘導する。しかし、一旦遊技領域に達した遊技球が障害釘などとの衝突によって跳ね返って誘導路に戻ることがあったので、これを防止するための戻り防止具が誘導路の出口付近に装着されていた。
【０００３】
従来の戻り防止具は、例えば特開平５−１７７０３３号公報に記載されているように、内側誘導レールの先端から外側誘導レールに向かって斜めに延出された弾性薄片を逆止弁として機能させる構造であった。
【０００４】
遊技領域に向かって移動する遊技球は弾性薄片を外側誘導レール側から押しのけるように弾性変形させて通過できるが、遊技領域から誘導路に戻ろうとする遊技球が弾性薄片に衝突すると、弾性薄片は外側誘導レール側に弾性変形して誘導路を閉鎖し、誘導路への逆戻りを防止した。
【０００５】
【発明が解決しようとする課題】
ところで、従来の戻り防止具の場合、遊技領域に向かって移動する遊技球は弾性薄片を外側誘導レール側から押しのけるように弾性変形させて通過するので、遊技球は弾性薄片の反発力によって外側誘導レールに押しつけられることになる。これにより遊技球を外側誘導レールに沿わせることになり、その限りでは遊技球の軌道を整える効果もあった。
【０００６】
ところが、遊技盤とその前面を覆うガラス板との距離はおよそ１９ｍｍとされており、遊技球の直径が約１１ｍｍであるために、遊技球が遊技盤から離れた状態で遊技領域に飛び込むことが多く、その際の遊技球と遊技盤との距離も一定しない（０〜約８ｍｍの範囲で変化する）ので、球筋が不安定となっていた。つまり、遊技者にしてみれば、発射装置の発射力を同じ状態に保っていても、遊技球が狙った場所に行くこともあればそれることもあるわけで、狙いどおりに飛ばないという不満があった。
【０００７】
本発明は、誘導路から遊技領域に飛び込む際の遊技球の軌道を安定させることを目的としている。
【０００８】
【課題を解決するための手段および発明の効果】
上記課題を解決するための請求項１記載の戻り防止具は、
遊技盤に取り付けられている円弧状の外側誘導レールと円弧状の内側誘導レールとの間に形成された誘導路であり発射された遊技球を遊技盤上の遊技領域に誘導する誘導路の出口付近に装着されて、前記遊技領域から前記誘導路への遊技球の戻りを防止する戻り防止具において、
一枚の弾性板金にて形成されていて、支持部材と弾性薄片とを一体に連結した構造の戻り防止具であり、
前記支持部材は、
ともに長方形の平面状である張出部と接面部とを共通の一辺にて連接し、その共通の一辺にて直角に折り曲げてアングル状となした構造で、
前記接面部を前記内側誘導レールの内周面に接触させて、前記張出部を前記内側誘導レールの上側で前記外側誘導レールに向かって延出させた姿勢で前記遊技盤または前記内側誘導レールに取り付けられ、
前記弾性薄片は、
一端を前記張出部の前記共通の一辺と直交する辺に連接され、
前記張出部との連接部では前記遊技盤の表面との間隔が遊技球の直径を超え、先端と前記遊技盤の表面との間隔が遊技球の直径未満となる傾斜状態で配されていて、前記張出部との接続線を軸として板ばね状に弾性変形可能である
ことを特徴とする。
【０００９】
この戻り防止具の弾性薄片は、誘導路側では遊技盤の表面との間隔が遊技球の直径を超え、先端と遊技盤の表面との間隔が遊技球の直径未満となる傾斜状態で配されているので、誘導路から遊技領域に向かって移動する遊技球は、弾性薄片を押しのけるように弾性変形させ、これによる弾性薄片の反発力で遊技盤に押しつけられる。このため、遊技球は常に遊技盤の表面に接触した状態で遊技領域に飛び込む。すなわち、遊技領域に飛び込むときの遊技球と遊技盤との距離は常に０となり、また遊技領域に入ってからも少なくとも最初に障害釘などに接触するまでは遊技盤との接触が維持されるから、球筋がきわめて安定する。この結果、狙いどおりに飛ばないという遊技者の不満も解消される。
【００１０】
弾性薄片は、上記のような傾斜状態で配されていれば、その形状は例えば平面状であってもよいし、曲面状であってもよく、あるいは一部を曲面状として他の一部を平面状にする等も可能であり、形状に制限はない。
【００１１】
支持部材は接面部を内側誘導レールの内周面に接触させて、張出部を内側誘導レールの上側で外側誘導レールに向かって延出させた姿勢で遊技盤または内側誘導レールに取り付けられる。支持部材を遊技盤と内側誘導レールの両方に取り付けることもできる。内側誘導レールは、普通は遊技盤に固定されているから、支持部材は直接または間接的に遊技盤に固定されるわけである。
【００１２】
また戻り防止具は一枚の弾性板金にて形成され、弾性薄片と支持部材とが一体になっているので、例えば板金のプレス加工等で量産するのに適しており、製造コストの低減も可能になる。
【００１３】
【発明の実施の形態】
次に、図面を参照して本発明のいくつかの実施例を説明することにより発明の実施の形態を説明する。なお、遊技盤の構造、誘導路を形成する部材（例えば外側誘導レール及び内側誘導レール）の配置や取り付け構造などは周知であるので、それらの図示と説明は省略する。
【００１４】
【実施例１】
図１及び図２は、遊技盤１０の一部を切り取きした状態で示した図である。これら図１及び図２に示すように、遊技盤１０に取り付けられている外側誘導レール１２と内側誘導レール１４との間には誘導路１６が形成され、またこれらレールよりも内側部分が遊技領域１８とされている。なお、外側誘導レール１２と内側誘導レール１４は、共に板金製である。
【００１５】
内側誘導レール１４の先端は遊技領域１８側に筒状に曲げられてスリーブ２０とされ、スリーブ２０を貫通する釘２０ａが遊技盤１０に打ち込まれている。これにより内側誘導レール１４の先端の位置が固定されている。また、内側誘導レール１４の下端縁（遊技盤１０側の端縁）は、割釘２２によって遊技盤１０に固定されている。そして、スリーブ２０と割釘２２の間には戻り防止具２３が取り付けられている。
【００１６】
戻り防止具２３は、図３及び図４に示すように、弾性薄片２５とアングル状の支持部材２７とを一体に連結した構造である。詳しくは、弾性薄片２５は先端側の平面部２９と支持部材２７側の曲面部３１とからなり、曲面部３１の端において支持部材２７の張出部３３に連設されている。
【００１７】
支持部材２７は、張出部３３、この張出部３３に対してほぼ直角に折り曲げられている接面部３５、接面部３５の一端側をＵターン状に折り曲げて形成された折返部３７からなっている。なお、張出部３３及び接面部３５は平面状であり、接面部３５の両側の折り目間の距離（つまり接面部３５の高さ）は内側誘導レール１４の幅をわずかに上回り、接面部３５と折返部３７の間隔は内側誘導レール１４の板厚とほぼ等しい。
【００１８】
この戻り防止具２３は薄鋼板（本例では厚さが約０．２ｍｍ）を曲げ加工して製造されており、上述のような形状であるので、弾性薄片２５は張出部３３との接続線を軸として板ばね状に弾性変形可能である。
【００１９】
図１、図２及び図５に示すように、支持部材２７（戻り防止具２３）は、接面部３５と折返部３７とで内側誘導レール１４を挟むようにして、接面部３５及び折返部３７を内側誘導レール１４の表面に接触させ、また張出部３３を内側誘導レール１４の上側で外側誘導レール１２に向かって延出させて張出部３３と折返部３７とで内側誘導レール１４を挟む姿勢で、しかも内側誘導レール１４と遊技盤１０によって折返部３７の折り目部分を挟まれる状態で、スリーブ２０と割釘２２の間に配されている。
【００２０】
つまり、接面部３５と折返部３７とで内側誘導レール１４を挟むことで内側誘導レール１４の板厚方向への移動を規制され、折返部３７と張出部３３とで内側誘導レール１４を挟みかつ内側誘導レール１４と遊技盤１０によって折り目部分を挟まれることで内側誘導レール１４の幅方向への移動が規制され、スリーブ２０と割釘２２とによって内側誘導レール１４の長手方向への移動が規制されている。したがって、支持部材２７と内側誘導レール１４及び遊技盤１０との相対位置の変動は規制されている。
【００２１】
また、図５に示すように、折返部３７の高さＨ（遊技盤１０の表面から折返部３７の先端３７ａまでの距離）は遊技球の半径の約６０％以下とされており、誘導路１６を通過する遊技球が内側誘導レール１４に接触した場合でも、折返部３７には接触しない寸法設定である。したがって、折返部３７が遊技球に接触してその進路を乱すことはない。
【００２２】
一方、図１、図２及び図５に示すように、弾性薄片２５は、張出部３３によって片持ちされた状態で誘導路１６の進行方向に沿って延出されており、張出部３３側（誘導路１６側）では遊技盤１０の表面との間隔が大きく（ほぼ内側誘導レール１４の高さ）、平面部２９の先端２９ａと遊技盤１０の表面との間隔が狭い、傾斜状態とされている。弾性薄片２５と遊技盤１０の表面との間隔は、誘導路１６を通過してくる遊技球との関係でいえば、張出部３３側（誘導路１６側）では遊技球の直径より大きく（本例では約１８ｍｍ）、先端２９ａでは遊技球の直径よりも小さい（本例では約２ｍｍ）。
【００２３】
この戻り防止具２３を装着した遊技盤１０においては、誘導路１６から遊技領域１８に向かって移動する遊技球は、弾性薄片２５を押しのけるように弾性変形させ、これによる弾性薄片２５の反発力で遊技盤１０に押しつけられる。このため、遊技球は常に遊技盤１０の表面に接触した状態で遊技領域１８に飛び込む。すなわち、遊技領域１８に飛び込むときの遊技球と遊技盤１０との距離は常に０となり、また遊技領域１８に入ってからも少なくとも最初に障害釘などに接触するまでは遊技盤１０との接触が維持されるから、球筋がきわめて安定する。この結果、狙いどおりに飛ばないという遊技者の不満も解消される。
【００２４】
遊技領域１８から誘導路１６に戻ろうとする遊技球があると、そのような遊技球は平面部２９の先端２９ａに当たる。弾性薄片２５が傾斜状態とされているので、その先端２９ａに当たった遊技球は先端２９ａ側を遊技盤１０に押し付ける方向に弾性薄片２５を弾性変形させる。この弾性薄片２５の変形によって誘導路１６の出口が閉じられるので、遊技球は誘導路１６に流入できない。このように、弾性薄片２５が逆止弁として働くから、遊技球が遊技領域１８から誘導路１６に戻るのは防止される。
【００２５】
また、戻り防止具２３は弾性薄片２５と支持部材２７とを一体にした板金製品なので、プレス加工等で量産するのに適しており、製造コストの低減も可能になる。
【００２６】
【実施例２】
この例は戻り防止具を遊技盤に固定する例である。なお、実施例１と共通の部分が多いので、それらについては実施例１と同じ符号を用いて説明を省略する。
【００２７】
この例においては、遊技盤１０及び外側誘導レール１２は実施例１と同じであり、内側誘導レール１４はスリーブ２０を有さない点で実施例１のものとは異なるが、それ以外は同じである。
【００２８】
戻り防止具４１は実施例１の戻り防止具２３と同様の薄鋼板を曲げ加工して製造されており、弾性薄片２５、張出部３３及び接面部３５は実施例１と同じであるが、図８及び図９に示すように、一対の折返部４３ａ、４３ｂを備える点と固定用の舌片４５を有する点で実施例１とは異なる。ただし、折返部４３ａ、４３ｂの高さ（遊技盤１０の表面から折返部４３ａ、４３ｂの先端までの距離）は、実施例１の折返部３７と同様に高さ遊技球の半径の約６０％以下とされている。
【００２９】
図８及び図９に示すように、舌片４５は張出部３３とは逆の方向に沿って接面部３５からほぼ直角に延出されており、図９に示すように、舌片４５にはビス用の貫通穴４５ａが設けられている。
【００３０】
図６及び図７に示すように、支持部材２７（戻り防止具４１）は、接面部３５と一対の折返部４３ａ、４３ｂとで内側誘導レール１４を挟むようにして、接面部３５及び折返部４３ａ、４３ｂを内側誘導レール１４の表面に接触させ、また張出部３３を内側誘導レール１４の上側で外側誘導レール１２に向かって延出させて張出部３３と折返部４３ａ、４３ｂとで内側誘導レール１４を挟む姿勢で、しかも内側誘導レール１４と遊技盤１０によって折返部４３ａ、４３ｂの折り目部分を挟まれる状態で配されている。そして、舌片４５は遊技盤１０の表面に沿って遊技領域１８側に延出され、貫通穴４５ａを貫通するビス４７によって遊技盤１０に固定されている。
【００３１】
戻り防止具４１は、接面部３５と折返部４３ａ、４３ｂとで内側誘導レール１４を挟むことで内側誘導レール１４の板厚方向への移動を規制され、折返部４３ａ、４３ｂと張出部３３とで内側誘導レール１４を挟みかつ内側誘導レール１４と遊技盤１０によって折り目部分を挟まれることで内側誘導レール１４の幅方向への移動が規制され、ビス４７により遊技盤１０からの離脱を阻まれ内側誘導レール１４の長手方向への移動を規制されている。したがって、支持部材２７と内側誘導レール１４及び遊技盤１０との相対位置の変動は規制されている。
【００３２】
一方、弾性薄片２５は、実施例１と同様に張出部３３によって片持ちされた状態で誘導路１６の進行方向に沿って延出され、張出部３３側（誘導路１６側）では遊技盤１０の表面との間隔が大きく（ほぼ内側誘導レール１４の高さ）、平面部２９の先端２９ａと遊技盤１０の表面との間隔が狭い、傾斜状態とされている。弾性薄片２５と遊技盤１０の表面との間隔は、誘導路１６を通過してくる遊技球との関係でいえば、張出部３３側（誘導路１６側）では遊技球の直径より大きく（本例では約１８ｍｍ）、先端２９ａでは遊技球の直径よりも小さい（本例では約２ｍｍ）。
【００３３】
この戻り防止具４１を装着した遊技盤１０においては、誘導路１６から遊技領域１８に向かって移動する遊技球は、弾性薄片２５を押しのけるように弾性変形させ、これによる弾性薄片２５の反発力で遊技盤１０に押しつけられる。このため、遊技球は常に遊技盤１０の表面に接触した状態で遊技領域１８に飛び込む。すなわち、遊技領域１８に飛び込むときの遊技球と遊技盤１０との距離は常に０となり、また遊技領域１８に入ってからも少なくとも最初に障害釘などに接触するまでは遊技盤１０との接触が維持されるから、球筋がきわめて安定する。この結果、狙いどおりに飛ばないという遊技者の不満も解消される。
【００３４】
遊技領域１８から誘導路１６に戻ろうとする遊技球があると、そのような遊技球は平面部２９の先端２９ａに当たる。弾性薄片２５が傾斜状態とされているので、その先端２９ａに当たった遊技球は先端２９ａ側を遊技盤１０に押し付ける方向に弾性薄片２５を弾性変形させる。この弾性薄片２５の変形によって誘導路１６の出口が閉じられるので、遊技球は誘導路１６に流入できない。このように、弾性薄片２５が逆止弁として働くから、遊技球が遊技領域１８から誘導路１６に戻るのは防止される。
【００３５】
また、折返部４３ａ、４３ｂの高さ（遊技盤１０の表面から折返部４３ａ、４３ｂの先端までの距離）が遊技球の半径の約６０％以下とされているので、誘導路１６を通過する遊技球が内側誘導レール１４に接触した場合でも、折返部４３ａ、４３ｂに接触することはなく、折返部４３ａ、４３ｂが遊技球に接触してその進路を乱すことはない。
【００３６】
しかも、戻り防止具４１は弾性薄片２５と支持部材２７とを一体にした板金製品なので、プレス加工等で量産するのに適しており、製造コストの低減も可能になる。
【００３７】
【実施例３】
この例は内側誘導レールとしてプラスチック製の板体を用いる例である。なお、実施例１、２と共通の部分が多い（戻り防止具においては実施例２とは接面部と折返部の距離が異なるだけである）ので、それらについては実施例１、２と同じ符号を用いて説明を省略する。
【００３８】
本例の内側誘導レール１５はプラスチック製であるので、図１０及び図１１に示すように、板金製の外側誘導レール１２よりも板厚が大きい。また先端部１５ａが円柱の側面状の曲面とされている点で実施例１、２とは異なる。
【００３９】
戻り防止具５１は実施例１、２の戻り防止具２３、４１と同様の薄鋼板を曲げ加工して製造されており、図１１及び図１２に示すように、戻り防止具５１は、実施例１、２と同様の弾性薄片２５、張出部３３、接面部３５と実施例２と同様の折返部４３ａ、４３ｂ及び舌片４５を備えている。ただし、接面部３５と折返部４３ａ、４３ｂの間隔が内側誘導レール１５の板厚に対応して実施例２よりも大きくなっている点で違いがあるが、折返部４３ａ、４３ｂの高さ（遊技盤１０の表面から折返部４３ａ、４３ｂの先端までの距離）は、実施例１、２と同じである。
【００４０】
図１０及び図１１に示すように、支持部材２７（戻り防止具５１）は、接面部３５と折返部４３ａ、４３ｂとで内側誘導レール１５を挟むようにして、接面部３５及び折返部４３ａ、４３ｂを内側誘導レール１５の表面に接触させ、また張出部３３を内側誘導レール１５の上側で外側誘導レール１２に向かって延出させて張出部３３と折返部４３ａ、４３ｂとで内側誘導レール１５を挟む姿勢で、しかも内側誘導レール１５と遊技盤１０によって折返部４３ａ、４３ｂの折り目部分を挟まれる状態で配されている。そして、舌片４５は遊技盤１０の表面に沿って遊技領域１８側に延出され、貫通穴４５ａを貫通するビス４７によって遊技盤１０に固定されている。
【００４１】
戻り防止具５１は、接面部３５と折返部４３ａ、４３ｂとで内側誘導レール１５を挟むことで内側誘導レール１５の板厚方向への移動を規制され、折返部４３ａ、４３ｂと張出部３３とで内側誘導レール１５を挟みかつ内側誘導レール１５と遊技盤１０によって折り目部分を挟まれることで内側誘導レール１５の幅方向への移動が規制され、ビス４７により遊技盤１０からの離脱を阻まれ内側誘導レール１５の長手方向への移動を規制されている。したがって、支持部材２７と内側誘導レール１５及び遊技盤１０との相対位置の変動は規制されている。
【００４２】
一方、弾性薄片２５は、実施例１、２と同様に張出部３３によって片持ちされた状態で誘導路１６の進行方向に沿って延出され、張出部３３側（誘導路１６側）では遊技盤１０の表面との間隔が大きく（ほぼ内側誘導レール１５の高さ）、平面部２９の先端２９ａと遊技盤１０の表面との間隔が狭い、傾斜状態とされている。弾性薄片２５と遊技盤１０の表面との間隔は、誘導路１６を通過してくる遊技球との関係でいえば、張出部３３側（誘導路１６側）では遊技球の直径より大きく（本例では約１８ｍｍ）、先端２９ａでは遊技球の直径よりも小さい（本例では約２ｍｍ）。
【００４３】
この戻り防止具５１を装着した遊技盤１０においては、誘導路１６から遊技領域１８に向かって移動する遊技球は、弾性薄片２５を押しのけるように弾性変形させ、これによる弾性薄片２５の反発力で遊技盤１０に押しつけられる。このため、遊技球は常に遊技盤１０の表面に接触した状態で遊技領域１８に飛び込む。すなわち、遊技領域１８に飛び込むときの遊技球と遊技盤１０との距離は常に０となり、また遊技領域１８に入ってからも少なくとも最初に障害釘などに接触するまでは遊技盤１０との接触が維持されるから、球筋がきわめて安定する。この結果、狙いどおりに飛ばないという遊技者の不満も解消される。
【００４４】
また、折返部４３ａ、４３ｂの高さ（遊技盤１０の表面から折返部４３ａ、４３ｂの先端までの距離）が遊技球の半径の約６０％以下とされているので、誘導路１６を通過する遊技球が内側誘導レール１４に接触した場合でも、折返部４３ａ、４３ｂに接触することはなく、折返部４３ａ、４３ｂが遊技球に接触してその進路を乱すことはない。
【００４５】
遊技領域１８から誘導路１６に戻ろうとする遊技球があると、そのような遊技球は平面部２９の先端２９ａに当たる。弾性薄片２５が傾斜状態とされているので、その先端２９ａに当たった遊技球は先端２９ａ側を遊技盤１０に押し付ける方向に弾性薄片２５を弾性変形させる。この弾性薄片２５の変形によって誘導路１６の出口が閉じられるので、遊技球は誘導路１６に流入できない。このように、弾性薄片２５が逆止弁として働くから、遊技球が遊技領域１８から誘導路１６に戻るのは防止される。
【００４６】
しかも、戻り防止具５１は弾性薄片２５と支持部材２７とを一体にした板金製品なので、プレス加工等で量産するのに適しており、製造コストの低減も可能になる。
【００４７】
【実施例４】
この例は、折返部の形状を半筒状にした例であるが、これ以外は実施例１と同じであるので、それら共通部分については実施例１と同じ符号を用いて説明を省略する。
【００４８】
図１６及び図１７に示すように、この戻り防止具６１の折返部６３は、接面部３５から折り返され、さらに接面部３５側に巻き込まれており、その断面形状は半円状になっている。そして、接面部３５と折返部６３の先端との距離は、内側誘導レール１４の板厚をわずかに下回っている。
【００４９】
この戻り防止具６１は、図８に示すとおり、実施例１のものと同様に内側誘導レール１４の先端部に装着される。その際には折返部６３と接面部３５の間に内側誘導レール１４が押し込まれるので、折返部６３が弾性変形させられ、その反発力によって折返部６３の先端と接面部３５とで内側誘導レール１４を挟持する。この挟持により、内側誘導レール１４と戻り防止具６１（支持部材２７）との連結がより強固になる。
【００５０】
しかも、折返部６３の先端側を巻き込んだことにより、遊技盤１０の表面から折返部６３の先端部までの距離（遊技盤１０上での高さ）を小さくできるので、誘導路１６を通過する遊技球が折返部６３と接触することもない。
【００５１】
また、この戻り防止具６１は、実施例１の戻り防止具２３と同じ効果をも発揮する。
【００５２】
以上、４つの実施例に従って、本発明の実施の形態について説明したが、本発明はこれらの実施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。
【図面の簡単な説明】
【図１】実施例１の戻り防止具の使用状態の説明図であり、図１（ａ）は正面図、図１（ｂ）は図１（ａ）のＡ−Ａ断面図、図１（ｃ）は下面図である。
【図２】実施例１の戻り防止具の使用状態の説明図であり、図２（ａ）は右側面図、図２（ｂ）は右上方からの斜視図、図２（ｃ）は左上方からの斜視図である。
【図３】実施例１の戻り防止具の構造の説明図であり、図３（ａ）は正面図、図３（ｂ）は図３（ａ）のＡ−Ａ断面図、図３（ｃ）は下面図、図３（ｄ）は右側面図である。
【図４】実施例１の戻り防止具の構造の説明図であり、図４（ａ）は右上方からの斜視図、図４（ｂ）は右下方からの斜視図、図４（ｃ）は左上方からの斜視図である。
【図５】実施例１の戻り防止具の使用状態の説明図であり、図５（ａ）は拡大正面図、図５（ｂ）は図５（ａ）のＡ−Ａ断面図である。
【図６】実施例２の戻り防止具の使用状態の説明図であり、図６（ａ）は正面図、図６（ｂ）は図６（ａ）のＡ−Ａ断面図、図６（ｃ）は下面図である。
【図７】実施例２の戻り防止具の使用状態の説明図であり、図７（ａ）は右側面図、図７（ｂ）は右上方からの斜視図、図７（ｃ）は左上方からの斜視図である。
【図８】実施例２の戻り防止具の構造の説明図であり、図８（ａ）は正面図、図８（ｂ）は図８（ａ）のＡ−Ａ断面図、図８（ｃ）は下面図、図８（ｄ）は右側面図、図８（ｅ）は上面図である。
【図９】実施例２の戻り防止具の構造の説明図であり、図９（ａ）は右上方からの斜視図、図９（ｂ）は右下方からの斜視図、図９（ｃ）は左上方からの斜視図、図９（ｄ）は裏面側の下方からの斜視図である。
【図１０】実施例３の戻り防止具の使用状態の説明図であり、図１０（ａ）は正面図、図１０（ｂ）は図１０（ａ）のＡ−Ａ断面図、図１０（ｃ）は下面図である。
【図１１】実施例３の戻り防止具の使用状態の説明図であり、図１１（ａ）は右側面図、図１１（ｂ）は右上方からの斜視図、図１１（ｃ）は左上方からの斜視図である。
【図１２】実施例３の戻り防止具の構造の説明図であり、図１２（ａ）は正面図、図１２（ｂ）は図１２（ａ）のＡ−Ａ断面図、図１２（ｃ）は下面図、図１２（ｄ）は右側面図、図１２（ｅ）は上面図である。
【図１３】実施例３の戻り防止具の構造の説明図であり、図１３（ａ）は右上方からの斜視図、図１３（ｂ）は右下方からの斜視図、図１３（ｃ）は左上方からの斜視図、図１３（ｄ）は裏面側の下方からの斜視図である。
【図１４】実施例４の戻り防止具の使用状態の説明図であり、図１４（ａ）は正面図、図１４（ｂ）は図１４（ａ）のＡ−Ａ断面図、図１４（ｃ）は下面図である。
【図１５】実施例４の戻り防止具の使用状態の説明図であり、図１５（ａ）は右側面図、図１５（ｂ）は右上方からの斜視図、図１５（ｃ）は左上方からの斜視図である。
【図１６】実施例４の戻り防止具の構造の説明図であり、図１６（ａ）は正面図、図１６（ｂ）は図１６（ａ）のＡ−Ａ断面図、図１６（ｃ）は下面図、図１６（ｄ）は右側面図、図１６（ｅ）は上面図である。
【図１７】実施例４の戻り防止具の構造の説明図であり、図１７（ａ）は右上方からの斜視図、図１７（ｂ）は右下方からの斜視図、図１７（ｃ）は左上方からの斜視図、図１７（ｄ）は裏面側の下方からの斜視図である。
【符号の説明】
１０…遊技盤、１２…外側誘導レール（誘導路を形成する部材）、１４、１５…内側誘導レール（誘導路を形成する部材）、１６…誘導路、１８…遊技領域、２３、４１、５１、６１…戻り防止具、２５…弾性薄片、２７…支持部材[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a ball game machine, and more particularly relates to a return prevention tool for preventing a game ball from returning from a game area to a guide path.
[0002]
[Prior art]
In a ball game machine such as a pachinko machine, for example, a guide path is formed by an outer guide rail and an inner guide rail, and a game ball launched from a launcher is guided to a game area on the game board by the guide path. However, the game ball that once reached the game area bounced back due to the collision with the obstacle nail or the like and returned to the guide path, so a return prevention device for preventing this was mounted near the exit of the guide path .
[0003]
A conventional anti-return tool, for example, as described in JP-A-5-177033, causes an elastic thin piece extending obliquely from the front end of the inner guide rail toward the outer guide rail to function as a check valve. It was a structure.
[0004]
The game ball moving toward the game area can pass through the elastic thin piece elastically deformed so as to push the elastic thin piece away from the outer guide rail side, but when the game ball trying to return to the guide path from the game area collides with the elastic thin piece, the elastic thin piece Elastically deformed to the outer guide rail side to close the guide way and prevent return to the guide way.
[0005]
[Problems to be solved by the invention]
By the way, in the case of the conventional anti-return device, the game ball moving toward the game area is elastically deformed so as to push the elastic thin piece away from the outer guide rail side, so that the game ball is guided outside by the repulsive force of the elastic thin piece. It will be pressed against the rail. As a result, the game ball is caused to follow the outer guide rail, and as long as the game ball trajectory is adjusted, there is an effect.
[0006]
However, the distance between the game board and the glass plate covering the front surface is about 19 mm, and the diameter of the game ball is about 11 mm, so that the game ball can jump into the game area in a state of being separated from the game board. In many cases, the distance between the game ball and the game board at that time is not constant (changes in the range of 0 to about 8 mm), so that the ball muscle is unstable. In other words, for the player, even if the launching power of the launching device is kept the same, the game ball may go to the target location or it may be deviated, so it is not complaining that it does not fly as intended was there.
[0007]
An object of the present invention is to stabilize the trajectory of a game ball when jumping from a taxiway into a game area.
[0008]
[Means for Solving the Problems and Effects of the Invention]
The return prevention tool according to claim 1 for solving the above-mentioned problem,
An exit of a guide path that is a guide path formed between an arc-shaped outer guide rail and an arc-shaped inner guide rail attached to the game board and guides a launched game ball to a game area on the game board In a return prevention tool that is mounted in the vicinity and prevents the return of the game ball from the game area to the guide path,
It is formed of a single elastic sheet metal, and is a return preventer having a structure in which a support member and an elastic thin piece are integrally connected,
The support member is
It is a structure in which the overhanging part and the contact surface part, both of which are rectangular flat, are connected at a common side and bent at a right angle at the common side to form an angle.
The game board or the inner guide rail in a posture in which the contact surface portion is brought into contact with the inner peripheral surface of the inner guide rail and the overhanging portion extends toward the outer guide rail above the inner guide rail. Attached to the
The elastic flake is
One end is connected to a side orthogonal to the common side of the overhang,
The connecting portion with the overhanging portion is arranged in an inclined state in which the distance between the surface of the game board exceeds the diameter of the game ball and the distance between the tip and the surface of the game board is less than the diameter of the game ball. The elastic member can be elastically deformed in a leaf spring shape with a connecting line with the projecting portion as an axis .
[0009]
The elastic thin piece of the return prevention device is arranged in an inclined state in which the distance between the surface of the game board on the guide path side exceeds the diameter of the game ball and the distance between the tip and the surface of the game board is less than the diameter of the game ball. Therefore, the game ball moving from the guide path toward the game area is elastically deformed so as to push away the elastic thin piece, and is pressed against the game board by the repulsive force of the elastic thin piece. For this reason, the game ball always jumps into the game area in contact with the surface of the game board. That is, the distance between the game ball and the game board when jumping into the game area is always 0, and contact with the game board is maintained at least until the first contact with the obstacle nail after entering the game area. , The ball muscles are extremely stable. As a result, the dissatisfaction of the player who does not fly as intended is also resolved.
[0010]
As long as the elastic flakes are arranged in an inclined state as described above, the shape thereof may be, for example, a flat shape or a curved surface, or a part of the elastic flake may be a curved surface and the other part may be a curved surface. A planar shape or the like is also possible, and the shape is not limited.
[0011]
The support member is attached to the game board or the inner guide rail in a posture in which the contact surface portion is brought into contact with the inner peripheral surface of the inner guide rail and the overhanging portion extends toward the outer guide rail on the upper side of the inner guide rail. The support member can be attached to both the game board and the inner guide rail . Since the inner guide rail is normally fixed to the game board, the support member is fixed to the game board directly or indirectly.
[0012]
In addition, the anti-return tool is made of a single sheet metal, and the elastic thin piece and the support member are integrated, making it suitable for mass production , for example, by pressing a sheet metal, and reducing manufacturing costs. become.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the invention will now be described by describing several embodiments of the invention with reference to the drawings. Since the structure of the game board and the arrangement and mounting structure of members (for example, the outer guide rail and the inner guide rail) forming the guide path are well known, their illustration and description are omitted.
[0014]
[Example 1]
1 and 2 are views showing a state in which a part of the game board 10 is cut out. As shown in FIG. 1 and FIG. 2, a guide path 16 is formed between the outer guide rail 12 and the inner guide rail 14 attached to the game board 10, and the inner portion of these rails is the game area. It is set to 18. Both the outer guide rail 12 and the inner guide rail 14 are made of sheet metal.
[0015]
The front end of the inner guide rail 14 is bent into a cylindrical shape toward the game area 18 to form a sleeve 20, and a nail 20 a penetrating the sleeve 20 is driven into the game board 10. As a result, the position of the tip of the inner guide rail 14 is fixed. Further, the lower end edge (the end edge on the game board 10 side) of the inner guide rail 14 is fixed to the game board 10 by a split nail 22. A return prevention tool 23 is attached between the sleeve 20 and the split nail 22.
[0016]
As shown in FIGS. 3 and 4, the return prevention tool 23 has a structure in which an elastic thin piece 25 and an angle-shaped support member 27 are integrally connected. Specifically, the elastic thin piece 25 includes a flat surface portion 29 on the front end side and a curved surface portion 31 on the support member 27 side, and is connected to the protruding portion 33 of the support member 27 at the end of the curved surface portion 31.
[0017]
The support member 27 includes an overhang portion 33, a contact surface portion 35 that is bent substantially at right angles to the overhang portion 33, and a folded portion 37 that is formed by bending one end of the contact surface portion 35 into a U-turn shape. ing. Note that the overhang portion 33 and the contact surface portion 35 are planar, and the distance between the folds on both sides of the contact surface portion 35 (that is, the height of the contact surface portion 35) slightly exceeds the width of the inner guide rail 14. And the space | interval of the folding | turning part 37 is substantially equal to the plate | board thickness of the inner side guide rail 14. FIG.
[0018]
The anti-return tool 23 is manufactured by bending a thin steel plate (thickness of about 0.2 mm in this example), and has the shape as described above. Therefore, the elastic thin piece 25 is connected to the overhang portion 33. It can be elastically deformed like a leaf spring with the wire as an axis.
[0019]
As shown in FIGS. 1, 2, and 5, the support member 27 (return prevention tool 23) has the contact surface portion 35 and the folded portion 37 on the inner side so that the inner guide rail 14 is sandwiched between the contact surface portion 35 and the folded portion 37. An attitude in which the surface of the guide rail 14 is brought into contact, and the overhang portion 33 is extended toward the outer guide rail 12 on the upper side of the inner guide rail 14 so that the inner guide rail 14 is sandwiched between the overhang portion 33 and the folded portion 37. In addition, it is disposed between the sleeve 20 and the split nail 22 in a state where the fold portion of the folded portion 37 is sandwiched between the inner guide rail 14 and the game board 10.
[0020]
That is, the movement of the inner guide rail 14 in the thickness direction is restricted by sandwiching the inner guide rail 14 between the contact surface portion 35 and the folded portion 37, and the inner guide rail 14 is sandwiched between the folded portion 37 and the overhang portion 33. The movement of the inner guide rail 14 in the width direction is restricted by the fold portion being sandwiched between the inner guide rail 14 and the game board 10, and the movement of the inner guide rail 14 in the longitudinal direction is restricted by the sleeve 20 and the split nail 22. It is regulated. Therefore, the fluctuation | variation of the relative position of the supporting member 27, the inner side guide rail 14, and the game board 10 is controlled.
[0021]
In addition, as shown in FIG. 5, the height H of the turn-up portion 37 (the distance from the surface of the game board 10 to the tip 37a of the turn-up portion 37) is about 60% or less of the radius of the game ball. Even when a game ball passing through 16 comes into contact with the inner guide rail 14, the dimensions are set so as not to contact the folded portion 37. Therefore, the turn-back portion 37 does not touch the game ball and disturb its course.
[0022]
On the other hand, as shown in FIGS. 1, 2, and 5, the elastic thin piece 25 is extended along the traveling direction of the guide path 16 while being cantilevered by the protruding portion 33, and the protruding portion 33. On the side (guide path 16 side), the gap between the surface of the game board 10 is large (almost the height of the inner guide rail 14), and the gap between the tip 29a of the flat portion 29 and the surface of the game board 10 is narrow. Has been. The distance between the elastic thin piece 25 and the surface of the game board 10 is larger than the diameter of the game ball on the overhang portion 33 side (guide path 16 side) in relation to the game ball passing through the guide path 16 ( In this example, it is about 18 mm), and the tip 29a is smaller than the diameter of the game ball (in this example, about 2 mm).
[0023]
In the game board 10 equipped with the return prevention tool 23, the game ball moving from the guide path 16 toward the game area 18 is elastically deformed so as to push away the elastic thin piece 25, and the repulsive force of the elastic thin piece 25 is thereby caused. It is pressed against the game board 10. For this reason, the game ball always jumps into the game area 18 while being in contact with the surface of the game board 10. That is, the distance between the game ball and the game board 10 when jumping into the game area 18 is always 0, and even after entering the game area 18, contact with the game board 10 is at least until the first contact with the obstacle nail or the like. Since it is maintained, the ball muscle is extremely stable. As a result, the dissatisfaction of the player who does not fly as intended is also resolved.
[0024]
If there is a game ball that is about to return to the guide path 16 from the game area 18, such a game ball hits the tip 29 a of the flat portion 29. Since the elastic thin piece 25 is in an inclined state, the game ball hitting the tip 29a elastically deforms the elastic thin piece 25 in a direction in which the tip 29a is pressed against the game board 10. Since the outlet of the guide path 16 is closed by the deformation of the elastic thin piece 25, the game ball cannot flow into the guide path 16. Thus, since the elastic thin piece 25 acts as a check valve, the game ball is prevented from returning from the game area 18 to the guide path 16.
[0025]
Further, since the return prevention tool 23 is a sheet metal product in which the elastic thin piece 25 and the support member 27 are integrated, it is suitable for mass production by pressing or the like, and the manufacturing cost can be reduced.
[0026]
[Example 2]
In this example, the return prevention tool is fixed to the game board. In addition, since there are many parts in common with the first embodiment, the same reference numerals as those in the first embodiment are used for them, and the description is omitted.
[0027]
In this example, the game board 10 and the outer guide rail 12 are the same as in the first embodiment, and the inner guide rail 14 is different from that in the first embodiment in that it does not have the sleeve 20, but the other is the same. is there.
[0028]
The return prevention tool 41 is manufactured by bending a thin steel plate similar to the return prevention tool 23 of the first embodiment, and the elastic thin piece 25, the overhang portion 33, and the contact surface portion 35 are the same as those of the first embodiment. As shown in FIG.8 and FIG.9, it differs from Example 1 by the point which has a pair of folding | turning parts 43a and 43b and the tongue piece 45 for fixation. However, the height of the folded portions 43a and 43b (the distance from the surface of the game board 10 to the tips of the folded portions 43a and 43b) is about 60% of the height of the radius of the game ball, similar to the folded portion 37 of the first embodiment. It is as follows.
[0029]
As shown in FIGS. 8 and 9, the tongue piece 45 extends from the contact surface portion 35 at a substantially right angle along the direction opposite to the overhang portion 33, and as shown in FIG. Are provided with through holes 45a for screws.
[0030]
As shown in FIGS. 6 and 7, the support member 27 (return prevention tool 41) is configured so that the inner guide rail 14 is sandwiched between the contact surface portion 35 and the pair of return portions 43 a and 43 b so that the contact surface portion 35 and the return portion 43 a, 43b is brought into contact with the surface of the inner guide rail 14, and the overhang portion 33 is extended toward the outer guide rail 12 on the upper side of the inner guide rail 14, so that the overhang portion 33 and the folded portions 43a and 43b guide the inside. The rails 14 are arranged so as to sandwich the folds of the folded portions 43a and 43b by the inner guide rail 14 and the game board 10. The tongue piece 45 is extended to the game area 18 side along the surface of the game board 10 and is fixed to the game board 10 by screws 47 passing through the through holes 45a.
[0031]
The return prevention tool 41 is restricted from moving in the plate thickness direction of the inner guide rail 14 by sandwiching the inner guide rail 14 between the contact surface portion 35 and the turn-up portions 43a and 43b, and the turn-back portions 43a and 43b and the overhang portion 33 are restricted. The inner guide rail 14 is sandwiched between the inner guide rail 14 and the game board 10 so that the fold portion is sandwiched between the inner guide rail 14 and the movement of the inner guide rail 14 in the width direction. In rare cases, the movement of the inner guide rail 14 in the longitudinal direction is restricted. Therefore, the fluctuation | variation of the relative position of the supporting member 27, the inner side guide rail 14, and the game board 10 is controlled.
[0032]
On the other hand, the elastic thin piece 25 is extended along the traveling direction of the guide path 16 in a state where it is cantilevered by the extension portion 33 as in the first embodiment, and a game is played on the extension portion 33 side (guide route 16 side). The distance from the surface of the board 10 is large (almost the height of the inner guide rail 14), and the distance between the tip 29a of the flat surface portion 29 and the surface of the game board 10 is narrowed. The distance between the elastic thin piece 25 and the surface of the game board 10 is larger than the diameter of the game ball on the overhang portion 33 side (guide path 16 side) in relation to the game ball passing through the guide path 16 ( In this example, it is about 18 mm), and the tip 29a is smaller than the diameter of the game ball (in this example, about 2 mm).
[0033]
In the game board 10 equipped with the return prevention device 41, the game ball moving from the guide path 16 toward the game area 18 is elastically deformed so as to push away the elastic thin piece 25, and the repulsive force of the elastic thin piece 25 thereby causes the elastic deformation. It is pressed against the game board 10. For this reason, the game ball always jumps into the game area 18 while being in contact with the surface of the game board 10. That is, the distance between the game ball and the game board 10 when jumping into the game area 18 is always 0, and even after entering the game area 18, contact with the game board 10 is at least until the first contact with the obstacle nail or the like. Since it is maintained, the ball muscle is extremely stable. As a result, the dissatisfaction of the player who does not fly as intended is also resolved.
[0034]
If there is a game ball that is about to return to the guide path 16 from the game area 18, such a game ball hits the tip 29 a of the flat portion 29. Since the elastic thin piece 25 is in an inclined state, the game ball hitting the tip 29a elastically deforms the elastic thin piece 25 in a direction in which the tip 29a is pressed against the game board 10. Since the outlet of the guide path 16 is closed by the deformation of the elastic thin piece 25, the game ball cannot flow into the guide path 16. Thus, since the elastic thin piece 25 acts as a check valve, the game ball is prevented from returning from the game area 18 to the guide path 16.
[0035]
Moreover, since the height of the turn-back portions 43a and 43b (the distance from the surface of the game board 10 to the tips of the turn-back portions 43a and 43b) is about 60% or less of the radius of the game ball, it passes through the guide path 16. Even when the game ball comes into contact with the inner guide rail 14, it does not come into contact with the folded portions 43 a and 43 b, and the folded portions 43 a and 43 b do not come into contact with the game ball and disturb its course.
[0036]
Moreover, since the return prevention tool 41 is a sheet metal product in which the elastic thin piece 25 and the support member 27 are integrated, it is suitable for mass production by press working or the like, and the manufacturing cost can be reduced.
[0037]
[Example 3]
In this example, a plastic plate is used as the inner guide rail. In addition, since there are many parts in common with Examples 1 and 2 (in the anti-return tool, only the distance between the contact surface portion and the folded portion is different from Example 2), the same reference numerals as those in Examples 1 and 2 Description is omitted using.
[0038]
Since the inner guide rail 15 of this example is made of plastic, the plate thickness is larger than that of the outer guide rail 12 made of sheet metal, as shown in FIGS. Further, the first and second embodiments are different from the first and second embodiments in that the tip portion 15a is a cylindrical side surface-shaped curved surface.
[0039]
The return prevention tool 51 is manufactured by bending the same thin steel plate as the return prevention tools 23 and 41 of the first and second embodiments. As shown in FIGS. The elastic thin piece 25, the overhang | projection part 33, the contact surface part 35 similar to 1 and 2, and the folding | returning parts 43a and 43b and the tongue piece 45 similar to Example 2 are provided. However, there is a difference in that the distance between the contact surface portion 35 and the folded portions 43a and 43b is larger than that of the second embodiment corresponding to the plate thickness of the inner guide rail 15, but the heights of the folded portions 43a and 43b ( The distance from the surface of the game board 10 to the tips of the folded portions 43a and 43b) is the same as in the first and second embodiments.
[0040]
As shown in FIGS. 10 and 11, the support member 27 (return prevention tool 51) has the contact surface portion 35 and the turn-back portions 43 a and 43 b so that the inner guide rail 15 is sandwiched between the contact surface portion 35 and the turn-back portions 43 a and 43 b. The inner guide rail 15 is brought into contact with the surface of the inner guide rail 15, and the overhang portion 33 is extended toward the outer guide rail 12 on the upper side of the inner guide rail 15. And the folds of the folded portions 43a and 43b are sandwiched between the inner guide rail 15 and the game board 10. The tongue piece 45 is extended to the game area 18 side along the surface of the game board 10 and is fixed to the game board 10 by screws 47 passing through the through holes 45a.
[0041]
The return preventing tool 51 is restricted from moving in the thickness direction of the inner guide rail 15 by sandwiching the inner guide rail 15 between the contact surface portion 35 and the turn-up portions 43a and 43b, and the turn-back portions 43a and 43b and the overhang portion 33 are regulated. The inner guide rail 15 is sandwiched between the inner guide rail 15 and the fold portion between the inner guide rail 15 and the game board 10, so that the movement of the inner guide rail 15 in the width direction is restricted, and the screw 47 prevents the game board 10 from being separated from the game board 10. In rare cases, the movement of the inner guide rail 15 in the longitudinal direction is restricted. Therefore, the fluctuation | variation of the relative position of the supporting member 27, the inner side guide rail 15, and the game board 10 is controlled.
[0042]
On the other hand, the elastic thin piece 25 is extended along the traveling direction of the guide path 16 in a state where it is cantilevered by the projecting part 33 as in the first and second embodiments, and the projecting part 33 side (guide path 16 side). In this case, the gap between the surface of the game board 10 is large (almost the height of the inner guide rail 15), and the gap between the tip 29a of the flat portion 29 and the surface of the game board 10 is narrow. The distance between the elastic thin piece 25 and the surface of the game board 10 is larger than the diameter of the game ball on the overhang portion 33 side (guide path 16 side) in relation to the game ball passing through the guide path 16 ( In this example, it is about 18 mm), and the tip 29a is smaller than the diameter of the game ball (in this example, about 2 mm).
[0043]
In the game board 10 to which the return prevention tool 51 is attached, the game ball moving from the guide path 16 toward the game area 18 is elastically deformed so as to push away the elastic thin piece 25, and the repulsive force of the elastic thin piece 25 is thereby generated. It is pressed against the game board 10. For this reason, the game ball always jumps into the game area 18 while being in contact with the surface of the game board 10. That is, the distance between the game ball and the game board 10 when jumping into the game area 18 is always 0, and even after entering the game area 18, contact with the game board 10 is at least until the first contact with the obstacle nail or the like. Since it is maintained, the ball muscle is extremely stable. As a result, the dissatisfaction of the player who does not fly as intended is also resolved.
[0044]
Moreover, since the height of the turn-back portions 43a and 43b (the distance from the surface of the game board 10 to the tips of the turn-back portions 43a and 43b) is about 60% or less of the radius of the game ball, it passes through the guide path 16. Even when the game ball comes into contact with the inner guide rail 14, it does not come into contact with the folded portions 43 a and 43 b, and the folded portions 43 a and 43 b do not come into contact with the game ball and disturb its course.
[0045]
If there is a game ball that is about to return to the guide path 16 from the game area 18, such a game ball hits the tip 29 a of the flat portion 29. Since the elastic thin piece 25 is in an inclined state, the game ball hitting the tip 29a elastically deforms the elastic thin piece 25 in a direction in which the tip 29a is pressed against the game board 10. Since the outlet of the guide path 16 is closed by the deformation of the elastic thin piece 25, the game ball cannot flow into the guide path 16. Thus, since the elastic thin piece 25 acts as a check valve, the game ball is prevented from returning from the game area 18 to the guide path 16.
[0046]
In addition, since the return prevention tool 51 is a sheet metal product in which the elastic thin piece 25 and the support member 27 are integrated, it is suitable for mass production by pressing or the like, and the manufacturing cost can be reduced.
[0047]
[Example 4]
This example is an example in which the shape of the folded portion is a semi-cylindrical shape, but other than this is the same as that of the first embodiment, and therefore, the common portions are denoted by the same reference numerals as those of the first embodiment and description thereof is omitted.
[0048]
As shown in FIG.16 and FIG.17, the folding | returning part 63 of this return prevention tool 61 is return | folded from the contact surface part 35, and is further wound in the contact surface part 35 side, The cross-sectional shape is a semicircle shape. . The distance between the contact surface portion 35 and the tip of the folded portion 63 is slightly less than the plate thickness of the inner guide rail 14.
[0049]
As shown in FIG. 8, the return preventing tool 61 is attached to the distal end portion of the inner guide rail 14 as in the first embodiment. At that time, since the inner guide rail 14 is pushed between the folded portion 63 and the contact surface portion 35, the folded portion 63 is elastically deformed, and the repulsive force causes the inner guide rail between the tip of the folded portion 63 and the contact surface portion 35. 14 is sandwiched. By this clamping, the connection between the inner guide rail 14 and the return prevention tool 61 (support member 27) becomes stronger.
[0050]
In addition, since the distance from the surface of the game board 10 to the tip of the turn-up part 63 (height on the game board 10) can be reduced by entraining the front end side of the turn-up part 63, it passes through the guide path 16. The game ball does not come into contact with the folded portion 63.
[0051]
Moreover, this return prevention tool 61 also exhibits the same effect as the return prevention tool 23 of Example 1.
[0052]
Although the embodiments of the present invention have been described according to the four examples, it is needless to say that the present invention is not limited to these examples and can be implemented in various ways without departing from the gist of the present invention. .
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram of a use state of a return prevention tool of Example 1, FIG. 1 (a) is a front view, FIG. 1 (b) is a cross-sectional view taken along line AA in FIG. c) is a bottom view.
FIGS. 2A and 2B are explanatory diagrams of a use state of the return preventing device of the first embodiment, FIG. 2A is a right side view, FIG. 2B is a perspective view from the upper right side, and FIG. It is a perspective view from the direction.
3A and 3B are explanatory views of the structure of the return preventing device of Embodiment 1, FIG. 3A is a front view, FIG. 3B is a cross-sectional view taken along line AA in FIG. 3A, and FIG. ) Is a bottom view, and FIG. 3D is a right side view.
4A and 4B are explanatory views of the structure of the return preventing device of the first embodiment, in which FIG. 4A is a perspective view from the upper right side, FIG. 4B is a perspective view from the lower right side, and FIG. FIG. 2 is a perspective view from the upper left.
FIGS. 5A and 5B are explanatory views of a use state of the return preventing tool of the first embodiment, FIG. 5A is an enlarged front view, and FIG. 5B is a cross-sectional view taken along line AA in FIG.
6A and 6B are explanatory diagrams of a use state of the return preventing device of the second embodiment, in which FIG. 6A is a front view, FIG. 6B is a cross-sectional view taken along the line AA in FIG. c) is a bottom view.
7A and 7B are explanatory views of a use state of the return preventing device of the second embodiment, in which FIG. 7A is a right side view, FIG. 7B is a perspective view from the upper right side, and FIG. It is a perspective view from the direction.
8A and 8B are explanatory views of the structure of the return preventing device of Example 2, in which FIG. 8A is a front view, FIG. 8B is a cross-sectional view taken along line AA in FIG. 8A, and FIG. ) Is a bottom view, FIG. 8D is a right side view, and FIG. 8E is a top view.
9A and 9B are explanatory views of the structure of the return preventing device according to the second embodiment. FIG. 9A is a perspective view from the upper right side, FIG. 9B is a perspective view from the lower right side, and FIG. Is a perspective view from the upper left, and FIG. 9D is a perspective view from the lower side on the back side.
10A and 10B are explanatory views of a use state of the return preventing device of the third embodiment, in which FIG. 10A is a front view, FIG. 10B is a cross-sectional view taken along line AA in FIG. c) is a bottom view.
FIGS. 11A and 11B are explanatory diagrams of a usage state of the return preventing device of Embodiment 3, FIG. 11A being a right side view, FIG. 11B being a perspective view from the upper right side, and FIG. It is a perspective view from the direction.
12A and 12B are explanatory views of the structure of the return preventing device of Example 3, in which FIG. 12A is a front view, FIG. 12B is a cross-sectional view taken along line AA in FIG. 12A, and FIG. ) Is a bottom view, FIG. 12 (d) is a right side view, and FIG. 12 (e) is a top view.
13A and 13B are explanatory diagrams of the structure of the return preventing device of the third embodiment. FIG. 13A is a perspective view from the upper right side, FIG. 13B is a perspective view from the lower right side, and FIG. Is a perspective view from the upper left, and FIG. 13D is a perspective view from the lower side of the back side.
14A and 14B are explanatory views of a use state of the return preventing device of the fourth embodiment, in which FIG. 14A is a front view, FIG. 14B is a cross-sectional view taken along line AA in FIG. c) is a bottom view.
FIGS. 15A and 15B are explanatory diagrams of a use state of the return preventing device of the fourth embodiment, FIG. 15A is a right side view, FIG. 15B is a perspective view from the upper right side, and FIG. It is a perspective view from the direction.
16A and 16B are explanatory views of the structure of the return preventing device of Example 4, in which FIG. 16A is a front view, FIG. 16B is an AA cross-sectional view of FIG. 16A, and FIG. ) Is a bottom view, FIG. 16 (d) is a right side view, and FIG. 16 (e) is a top view.
FIGS. 17A and 17B are explanatory views of the structure of the return preventing device according to the fourth embodiment, in which FIG. 17A is a perspective view from the upper right side, FIG. 17B is a perspective view from the lower right side, and FIG. Is a perspective view from the upper left, and FIG. 17D is a perspective view from the lower side of the back side.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Game board, 12 ... Outer guide rail (member which forms guide path), 14, 15 ... Inner guide rail (member which forms guide path), 16 ... Guide path, 18 ... Game area | region, 23, 41, 51 61 ... Return prevention tool, 25 ... elastic thin piece, 27 ... support member

Claims

An exit of a guide path that is a guide path formed between an arc-shaped outer guide rail and an arc-shaped inner guide rail attached to the game board and guides a launched game ball to a game area on the game board In a return prevention tool that is mounted in the vicinity and prevents the return of the game ball from the game area to the guide path,
It is formed of a single elastic sheet metal, and is a return preventer having a structure in which a support member and an elastic thin piece are integrally connected,
The support member is
It is a structure in which the overhanging part and the contact surface part, both of which are rectangular flat, are connected at a common side and bent at a right angle at the common side to form an angle.
The game board or the inner guide rail in a posture in which the contact surface portion is brought into contact with the inner peripheral surface of the inner guide rail and the overhanging portion extends toward the outer guide rail above the inner guide rail. Attached to the
The elastic flake is
One end is connected to a side orthogonal to the common side of the overhang,
The connecting portion with the overhanging portion is arranged in an inclined state in which the distance between the surface of the game board exceeds the diameter of the game ball and the distance between the tip and the surface of the game board is less than the diameter of the game ball. An anti-return tool characterized by being elastically deformable in the form of a leaf spring with a connection line with the overhanging portion as an axis .

The anti-return device according to claim 1,
The support member is
A folded portion formed by bending an end portion facing the common side of the contact surface portion into a U-turn shape;
The return preventing tool , wherein the folded portion is brought into contact with the outer peripheral surface of the inner guide rail, and the lower end edge of the inner guide rail is sandwiched between the contact surface portion and the folded portion .

The return prevention tool according to claim 1 or 2,
A tongue piece extending from the end portion of the contact surface portion facing the common side along the surface of the game board in a direction opposite to the overhanging portion and screwed to the surface of the game board is provided. <br/> Anti-return device characterized by that.

In the return prevention tool of Claim 2 or 3,
The return prevention tool, wherein a height H of the folded portion, which is a distance from a surface of the game board to a tip of the folded portion, is 60% or less of a radius of the game ball .