JP2004049311A

JP2004049311A - Hinge device of pachinko machine

Info

Publication number: JP2004049311A
Application number: JP2002207457A
Authority: JP
Inventors: Tsugio Kondo; 近藤　次夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2004-02-19
Anticipated expiration: 2022-07-16
Also published as: JP4105490B2

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate attaching work of a door to a support frame and to prevent a hinge pin of a hinge piece from being disengaged from a notch of a hinge receiving piece fraudulently. <P>SOLUTION: A hinge device 10 of a Pachinko machine is fixed to an upper corner part of a door. The hinge device 10 comprises the hinge piece 20 having the hinge pin as the center of rotation of the door and the hinge receiving piece 30 fixed to an upper corner part of the support frame to support the door for supporting the upper end part of the hinge pin 26 of the hinge piece 20 rotatably. The hinge receiving piece 30 comprises the notch 36 in which the hinge pin 26 can be set in the radial direction of the hinge pin 26, with a circular arc part 36e for rotatably supporting the hinge pin 26 and an engagement member 40 to be hooked to the head 26h of the hinge pin 26 set in the circular arc part 36e of the notch 36 for preventing the hinge pin 26 from being disengaged from the notch 36. The engagement member 40 is prevented from moving in the direction out of the head 26h of the hinge pin 26 by the inner surface of the door closed to the support frame. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、扉の上隅部に固定される構造で、その扉の回転中心となるヒンジピンを有するヒンジ片と、前記扉を支持する支持枠の上隅部に固定される構造で、前記ヒンジ片のヒンジピンの上端部を回転可能に支持するヒンジ受け片とを備えるパチンコ機のヒンジ装置に関する。
【０００２】
【従来の技術】
従来のパチンコ機のヒンジ装置は、一般的に、図７の斜視図に示すように構成されている。
即ち、ヒンジ装置８０は、遊戯盤等が取付けられる表枠２の左上隅部と左下隅部とにそれぞれ固定される上部ヒンジ片８３、下部ヒンジ片８５と、略方形枠状に形成されてパチンコ機の本体ケースとなる機台枠３の左上隅部と左下隅部とにそれぞれ固定される上部ヒンジ受け片８２、下部ヒンジ受け片８４とを備えている。
【０００３】
上部ヒンジ片８３の先端部には下向きにヒンジピン８３ｐが形成されており、上部ヒンジ受け片８２の先端にはそのヒンジピン８３ｐが挿入される貫通孔８２ｋが形成されている。また、下部ヒンジ片８５の先端部には貫通孔８５ｋが形成されており、下部ヒンジ受け片８４の先端にその貫通孔８５ｋに挿入されるヒンジピン８４ｐが上向きに形成されている。
このため、表枠２を持ち上げて下部ヒンジ片８５の貫通孔８５ｋに機台枠３の下部ヒンジ受け片８４のヒンジピン８４ｐを通し、同時に上部ヒンジ片８３のヒンジピン８３ｐを上部ヒンジ受け片８２の貫通孔８２ｋに通すことにより、機台枠３に対して表枠２を回動可能に組付けることができる。
【０００４】
【発明が解決しようとする課題】
しかし、上記したパチンコ機のヒンジ装置８０によると、重量の大きな表枠２を持ち上げた状態で、ヒンジ片８３，８５とヒンジ受け片８２，８４との位置合わせを上下同時に行なわなければならないため、機台枠３に対する表枠２の組付け作業に手間が掛かるという問題がある。
本発明は、上記課題を解決するためになされたものであり、組付け作業を容易に行なえるヒンジ装置を提供するとともに、組付けが容易であっても不正に組付け解除が行なえない構成のヒンジ装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記した課題は、各請求項の発明によって解決される。
請求項１の発明は、扉の上隅部に固定される構造で、その扉の回転中心となるヒンジピンを有するヒンジ片と、前記扉を支持する支持枠の上隅部に固定される構造で、前記ヒンジ片のヒンジピンの上端部を回転可能に支持するヒンジ受け片とを備えるパチンコ機のヒンジ装置であって、前記ヒンジ受け片は、前記ヒンジピンをそのヒンジピンの半径方向から嵌め込むことが可能な構造で、前記ヒンジピンを回転可能に支持できる円弧部を備える切欠きと、前記切欠きの円弧部に嵌め込まれたヒンジピンの頭部に掛けられ、その切欠きからの前記ヒンジピンの外れ防止を図る係合部材とを有しており、前記係合部材は、前記支持枠に対して閉じられた扉の内面によって、前記ヒンジピンの頭部から外れる方向の移動が禁止される構成であることを特徴とする。
【０００６】
本発明によると、支持枠の上隅部に固定されたヒンジ受け片の切欠きに対して扉の上隅部に固定されたヒンジ片のヒンジピンをそのヒンジピンの半径方向から嵌め込むことができるため、支持枠の下隅部のヒンジ受け片と扉の下隅部のヒンジ片との連結を行なった後で、その上隅部のヒンジ受け片とヒンジ片との連結を行なうことができる。このため、上下のヒンジ受け片とヒンジ片との位置合わせを同時に行なう必要がなくなり、支持枠に対する扉の組付け作業が容易になる。
また、係合部材は、支持枠に対して閉じられた扉の内面によって、前記ヒンジピンの頭部から外れる方向の移動が禁止される。このため、支持枠に対して扉が閉じられていれば、ヒンジ片のヒンジピンがヒンジ受け片の切欠きから不正に外されることがない。
【０００７】
請求項２の発明では、係合部材は、ヒンジ受け片に取付けられた支持軸が通される軸受けと、先端部分に形成されており、ヒンジピンの頭部に上方から掛けられる爪と、基端部に形成された操作用レバーとを有し、支持枠に固定されたヒンジ受け片に対して上下方向に回動可能な構成であり、前記係合部材の爪を前記ヒンジピンの頭部から外そうとして、その係合部材を上方に移動させると、前記操作用レバーが下前方に移動して閉状態の扉の内面に当接し、前記爪の移動が禁止される。
【０００８】
このため、例えば、特殊工具を使用して係合部材の爪を上方に押上げ、ヒンジ片とヒンジ受け片との連結を不正に解除しようとしても、その係合部材の操作用レバーと扉の内面とによって不正行為を確実に防止できる。なお、扉が開かれた状態では、操作用レバーを引くことで係合部材の爪をヒンジピンの頭部から容易に外すことができる。
また、請求項３のように、係合部材を、弾性力により、爪がヒンジピンの頭部に掛けられる位置に保持する構造が好ましい。
【０００９】
また、請求項４の発明によると、ヒンジピンの頭部には円錐面が形成されており、係合部材の爪の外側には前記円錐面とほぼ等しい傾きの傾斜面が形成されており、前記ヒンジピンがそのヒンジピンの半径方向からヒンジ受け片の切欠きに嵌め込まれる際に、そのヒンジピンの頭部の円錐面が前記係合部材の傾斜面を押圧することでその係合部材の爪が弾性力に抗して押上げられ、前記円錐面が傾斜面から外れて前記ヒンジピンが前記切欠きの円弧部に嵌め込まれた段階で、前記係合部材の爪が弾性力で前記ヒンジピンの頭部に掛けられる。
このため、ヒンジ受け片の切欠きに対するヒンジ片のヒンジピンの嵌め込みをワンタッチで行なうことができる。
【００１０】
【発明の実施の形態】
以下、図１から図６に基づいて、本発明の実施形態１に係るパチンコ機のヒンジ装置の説明を行う。ここで、図１は本実施形態に係るパチンコ機のヒンジ装置の分解斜視図、図２〜図４はヒンジ装置の連結手順を表す斜視図、図５は機台枠に対して表枠が閉じられた状態のヒンジ装置の側面図、図６は機台枠に対して表枠が開かれた状態のヒンジ装置の側面図である。
なお、機台枠及び表枠の左右方向をＸ方向、前後方向をＹ方向及び高さ方向をＺ方向として以下の説明を行なう。
【００１１】
本実施形態に係るパチンコ機のヒンジ装置１０は、パチンコ機の本体ケースとなる略方形枠状の機台枠３に対して遊戯盤等が取付けられる表枠２を回動可能に組付ける装置である。
ヒンジ装置１０は、表枠２の左上隅部に固定される上部ヒンジ片２０（図２等参照）と左下隅部に固定される下部ヒンジ片８５（図７参照）、及び機台枠３の左上隅部に固定される上部ヒンジ受け片３０（図２等参照）と左下隅部に固定される下部ヒンジ受け片８４（図７参照）とから構成されている。ここで、表枠２の下部ヒンジ片８５と機台枠３の下部ヒンジ受け片８４とは、図７に示す従来の下部ヒンジ片８５及び下部ヒンジ受け片８４と等しい構造のため、説明を省略する。即ち、機台枠３が本発明の支持枠に相当し、表枠２が本発明の扉に相当する。
【００１２】
表枠２の左上隅部に固定される上部ヒンジ片２０は、図１（Ａ）に示すように、表枠２の前面に対して面接触状態でほぼ水平に取付けられる略長方形の取付板２２と、その取付板２２に対して直角に折り曲げられて、その表枠２の前方に突出する支持板２４とを有している。支持板２４は、取付板２２の上側でその取付板２２の中央より左側に位置しており、略Ｕ字形に成形されている。そして、支持板２４の先端部分にヒンジピン２６が取付けられるピン孔２５が形成されている。また、取付板２２には、上部ヒンジ片２０をリベット等で表枠２に固定する際に使用される複数の貫通孔２２ｋが形成されている。
【００１３】
ヒンジピン２６は、表枠２の回転中心となるピンであり、ピン本体２６ｍと、ピン本体２６ｍの上寄りに形成された大径部２６ｒと、ピン本体２６ｍの上端部に形成された略円錐台形の頭部２６ｈとから構成されている。ヒンジピン２６は大径部２６ｒが支持板２４のピン孔２５に嵌め込まれ、その位置で例えばカシメられることにより、その支持板２４に固定される。
【００１４】
機台枠３の左上隅部に固定される上部ヒンジ受け片３０は、図１（Ａ）に示すように、互いに直角に形成された横平板３２と縦平板３３とを備えており、両平板３２，３３の幅寸法（Ｘ方向寸法、Ｚ方向寸法）が上部ヒンジ片２０の取付板２２の長さ寸法にほぼ等しく設定されている。また、横平板３２と縦平板３３との奥行き寸法（Ｙ方向寸法）が機台枠３の奥行き寸法Ｌ（厚み寸法Ｌ）にほぼ等しく設定されている。また、横平板３２及び縦平板３３には、上部ヒンジ受け片３０を機台枠３に固定する際に使用される複数のネジ孔３９等が形成されている。
【００１５】
横平板３２の中央より左側には、機台枠３の前方に突出する受け部３２ｕがその横平板３２と同一面上に形成されている。受け部３２ｕは、上部ヒンジ片２０の支持板２４と平面視において同一形状に成形されている。
受け部３２ｕのほぼ中央部分は、横平板３２との境界部分からその受け部３２ｕの先端にかけて略長方形状に切欠かれており、その切欠き部分３２ｃの左右両側に一定高さ寸法の縦壁３４が垂下されている。さらに、左右の縦壁３４の下端は連結板３５によって互いに連結されている。
このため、切欠き部分３２ｃと左右の縦壁３４及び連結板３５とによって、受け部３２ｕのほぼ中央部分には溝状の空間が形成される。また、横平板３２と受け部３２ｕとの境界部分の下側には、左右の縦壁３４と連結板３５とによって区画される開口３２ｘが形成されている。
【００１６】
連結板３５には、上部ヒンジ片２０のヒンジピン２６をそのヒンジピン２６の半径方向から嵌め込むことが可能なピン用切欠き３６が形成されている。ピン用切欠き３６は、図１（Ｂ）に示すように、連結板３５の先端からほぼ中央部にかけて形成されている。即ち、ピン用切欠き３６は、先端の拡開部３６ｗと、ヒンジピン２６のピン本体２６ｍの外径寸法とほぼ等しい幅寸法を有するスリット状の導入部３６ｄと、ピン本体２６ｍが嵌合する円弧部３６ｅとから構成されている。
そして、ヒンジピン２６のピン本体２６ｍ（頭部２６ｈと大径部２６ｒとの間）がピン用切欠き３６の円弧部３６ｅと嵌合し、そのヒンジピン２６の略円錐台形の頭部２６ｈが連結板３５によって下方から支持されることにより、上部ヒンジ片２０は上部ヒンジ受け片３０によって回動可能に支持される。
【００１７】
ここで、上部ヒンジ受け片３０の受け部３２ｕに対する円弧部３６ｅの位置は、上部ヒンジ片２０の支持板２４に対するピン孔２５の位置に等しく設定されている。このため、上部ヒンジ片２０のヒンジピン２６を上部ヒンジ受け片３０の円弧部３６ｅに嵌め込み、機台枠３に対して表枠２が閉じた状態で、上部ヒンジ片２０の支持板２４と上部ヒンジ受け片３０の受け部３２ｕとは完全に重複するようになる。また、受け部３２ｕの周縁には、連結板３５の部分を除いて、縦壁３４とほぼ等しい高さ寸法の補強用縦壁３７が垂下されており、その補強用縦壁３７の先端が縦壁３４の先端に接続されている。さらに、左側の補強用縦壁３７の基端部が縦平板３３に接続されている。
【００１８】
上部ヒンジ受け片３０の受け部３２ｕにおける左右の縦壁３４と連結板３５とによって形成される溝状の空間には、係合部材４０が上下回動可能な状態で取付けられている。係合部材４０は、前述のようにピン用切欠き３６の円弧部３６ｅに嵌め込まれたヒンジピン２６の頭部２６ｈに掛けられることで、そのヒンジピン２６がピン用切欠き３６から外れるのを防止する働きをする。係合部材４０は、図５等に示すように、先端寄りにその係合部材４０の回動中心となる軸受け部４２が形成されており、その軸受け部４２に、図１（Ａ）に示すように、連結ピン４１が通されている。連結ピン４１は、その両端部が左右の縦壁３４に形成された取付け孔３４ｔと左側の補強用縦壁３７に形成された取付け孔３７ｔとに固定されており、連結板３５とほぼ平行に位置決めされている。
即ち、連結ピン４１が本発明の支持軸に相当する。
【００１９】
係合部材４０の軸受け部４２のほぼ真上位置から先端にかけては、連結板３５とほぼ等しい幅寸法及び長さ寸法の上板部４３が形成されている。上板部４３の先端は下方内側に折り返されており、傾斜板部４４が形成されている。さらに、傾斜板部４４の先端が上板部４３とほぼ平行になるまで折り返されて爪４５が形成されている。爪４５は平面円弧形の切欠き部（図示されていない）を有しており、その切欠き部がヒンジピン２６のピン本体２６ｍと嵌合可能に形成されている。
【００２０】
係合部材４０は、爪４５の下面が連結板３５の上面に当接する位置まで図５等において右回動が可能であり、右回動限界位置（図５、図６参照）でその爪４５がピン用切欠き３６に嵌め込まれたヒンジピン２６の頭部２６ｈに掛けられるとともに、爪４５の切欠き部がヒンジピン２６のピン本体２６ｍと嵌合する。この状態で、爪４５の切欠き部とピン用切欠き３６の円弧部３６ｅとは円周方向においてほぼ円状に連続する。したがって、ヒンジピン２６は、爪４５の切欠き部とピン用切欠き３６の円弧部３６ｅとの働きで軸回りにスムーズに回転可能になるとともに、ヒンジピン２６の頭部２６ｈが連結板３５及び爪４５によって下方から支持される。
【００２１】
また、係合部材４０が右回動限界位置にあるときに、その係合部材４０の上板部４３は受け部３２ｕの上面とはほぼ同一面上に保持される。さらに、係合部材４０の傾斜板部４４はヒンジピン２６の頭部２６ｈの外周面（円錐面）とほぼ平行になる。したがって、後記するように、ヒンジピン２６を連結板３５のピン用切欠き３６に嵌合させる際に、ヒンジピン２６の頭部２６ｈの円錐面で係合部材４０の傾斜板部４４の表面を押圧することにより、係合部材４０の爪４５を前記円錐面で押上げることが可能になる。即ち、傾斜板部４４の表面が本発明の傾斜面に相当する。
【００２２】
係合部材４０の軸受け部４２に通された連結ピン４１の回りには、図１（Ａ）に示すように、その係合部材４０を図において右回動させるように付勢されたコイルバネ４７が装着されている。即ち、係合部材４０の爪４５は、コイルバネ４７のバネ力により、ヒンジピン２６の頭部２６ｈと係合する位置（右回動限界位置）に保持される。
また、係合部材４０をコイルバネ４７のバネ力に抗して、図１（Ａ）において左回動させることにより、その係合部材４０の爪４５とヒンジピン２６の頭部２６ｈとの係合を解除することができる。
【００２３】
係合部材４０には、軸受け部４２の後方に操作用レバー４８が設けられている。操作用レバー４８は、係合部材４０をコイルバネ４７のバネ力に抗し、図５、図６等において、左回動させる際に使用するレバーである。また、操作用レバー４８は、機台枠３に対して表枠２が閉じられた状態で、係合部材４０の爪４５がヒンジピン２６の頭部２６ｈから不正に外されるのを防止する機能も有している。
【００２４】
操作用レバー４８は、横レバー４８ｆと縦レバー４８ｓとにより側面略横Ｌ字形に形成されており、その横レバー４８ｆが上板部４３よりも若干低い位置で、その上板部４３と平行に形成されている。そして、横レバー４８ｆが、図６等に示すように、横平板３２の内側に配置されるとともに、その横レバー４８ｆの先端が開口３２ｘに通され、段差４８ｄを介して上板部４３に接続されている。このため、係合部材４０がコイルバネ４７のバネ力で爪４５とヒンジピン２６との係合位置（右回動限界位置）に保持されている状態で、横レバー４８ｆは横平板３２の下面にほぼ当接するようになる。
【００２５】
操作用レバー４８の縦レバー４８ｓは、図５に示すように、機台枠３に対して表枠２は閉じられた状態で、その表枠２の裏面にほぼ当接する位置に保持されている。このため、図５において、例えば、特殊工具を使用し、係合部材４０の爪４５を押上げようとしても、その係合部材４０が左回動を開始した時点で操作用レバー４８の縦レバー４８ｓが下前方に傾斜して表枠２の裏面に当接するため、係合部材４０の左回動が禁止される。
【００２６】
次に、本実施形態に係るパチンコ機のヒンジ装置１０を使用して機台枠３に対する表枠２の組付け等について説明する。
機台枠３に対して表枠２を組付ける場合には、先ず、図７の下半分に示すように、表枠２を持ち上げて、機台枠３の下部ヒンジ受け片８４のヒンジピン８４ｐをその表枠２の下部ヒンジ片８５の貫通孔８５ｋに挿入する。これによって、下部ヒンジ片８５と下部ヒンジ受け片８４との連結が終了する。
【００２７】
次に、図２に示すように、機台枠３に対して表枠２をほぼ直角に保持した状態で、表枠２の上部ヒンジ片２０のヒンジピン２６を機台枠３の上部ヒンジ受け片３０のピン用切欠き３６の方向に移動させる。そして、図３に示すように、ヒンジピン２６の頭部２６ｈの外周面（円錐面）を係合部材４０の傾斜板部４４の表面に当接させた状態で、そのヒンジピン２６のピン本体２６ｍ（頭部２６ｈと大径部２６ｒ間）を半径方向からピン用切欠き３６に押込む。これによって、ヒンジピン２６の頭部２６ｈの円錐面と係合部材４０の傾斜板部４４の表面との摺動作用により、その係合部材４０がコイルバネ４７のバネ力に抗し、図６において、左回動する。
【００２８】
そして、ヒンジピン２６の頭部２６ｈが係合部材４０の傾斜板部４４から外れ、ヒンジピン２６のピン本体２６ｍがピン用切欠き３６の円弧部３６ｅ（図１（Ｂ）参照）に嵌合した段階で、係合部材４０がコイルバネ４７のバネ力で右回動する。これによって、図４、図６に示すように、係合部材４０の爪４５がヒンジピン２６の頭部２６ｈに掛けられ、上部ヒンジ片２０と上部ヒンジ受け片３０との連結が終了する。
【００２９】
このようにして、下部ヒンジ片８５と下部ヒンジ受け片８４及び上部ヒンジ片２０と上部ヒンジ受け片３０との連結が終了すると、表枠２は機台枠３に対してヒンジピン８４ｐ，２６を中心に回動可能となる。機台枠３に対して表枠２が閉じられると、図５に示すように、係合部材４０おける操作用レバー４８の縦レバー４８ｓがその表枠２の裏面にほぼ当接する位置に保持される。このため、例えば、特殊工具を使用し、係合部材４０の爪４５を押上げようとしても、その係合部材４０が左回動を開始した時点で操作用レバー４８の縦レバー４８ｓが表枠２の裏面に当接し、係合部材４０の左回動が禁止される。したがって、機台枠３に対して表枠２が閉じられていれば、上部ヒンジ片２０のヒンジピン２６が上部ヒンジ受け片３０のピン用切欠き３６から不正に外されることがない。
【００３０】
次に、機台枠３から表枠２を外す手順を説明する。
先ず、機台枠３に対して表枠２を約９０°開く（図６参照）。次に、この状態で、操作用レバー４８を手前に引いて係合部材４０を図中左回動させる。これによって、係合部材４０の爪４５が上方に移動し、その爪４５とヒンジピン２６の頭部２６ｈとの係合が解除される。この状態で、ヒンジピン２６をピン用切欠き３６から引き抜くことにより、上部ヒンジ片２０と上部ヒンジ受け片３０との連結を解除することができる。
次に、表枠２を持ち上げて、下部ヒンジ受け片８４のヒンジピン８４ｐを下部ヒンジ片８５の貫通孔８５ｋから引き抜くことにより、下部ヒンジ片８５と下部ヒンジ受け片８４との連結を解除できる。
【００３１】
このように、本実施形態に係るパチンコ機のヒンジ装置１０によると、機台枠３に対して表枠２を組付ける際に、上下のヒンジ受け片３０，８４とヒンジ片２０，８５との位置合わせを同時に行なう必要がなくなり、前記組付け作業が容易になる。
また、係合部材４０は、機台枠３に対して閉じられた表枠２の内面によって、ヒンジピン２６の頭部２６ｈから外れる方向の移動が禁止される。このため、機台枠３に対して表枠２が閉じられていれば、上部ヒンジ片２０のヒンジピン２６が上部ヒンジ受け片３０のピン用切欠き３６から不正に外されることがない。
【００３２】
なお、本実施形態では、機台枠３に対して表枠２を回動可能に組付けるヒンジ装置１０を例に説明を行なったが、このヒンジ装置１０の構造を表枠に対してガラス枠等を回動可能に組付けるヒンジ装置に応用することも可能である。
【００３３】
【発明の効果】
本発明によると、上下のヒンジ片とヒンジ受け片とを同時に連結させる場合と比較して、支持枠に対する扉の組付け作業を容易に行なうことができる。また、支持枠に対して扉が閉じられた状態で、ヒンジ受け片の切欠きからヒンジ片のヒンジピンが不正に外されることがない。
【図面の簡単な説明】
【図１】本発明の実施形態１に係るパチンコ機のヒンジ装置の分解斜視図（Ａ図）、及びピン用切欠きを表す平面図（Ａ図のＢ部拡大図、Ｂ図）である。
【図２】前記ヒンジ装置の連結手順を表す斜視図である。
【図３】前記ヒンジ装置の連結手順を表す斜視図である。
【図４】前記ヒンジ装置の連結手順を表す斜視図である。
【図５】機台枠に対して表枠が閉じられた状態におけるヒンジ装置の側面図である。
【図６】機台枠に対して表枠が開かれた状態におけるヒンジ装置の側面図である。
【図７】従来のパチンコ機のヒンジ装置を表す斜視図である。
【符号の説明】
２　　　表枠（扉）
３　　　機台枠（支持枠）
２０　　上部ヒンジ片
２６　　ヒンジピン
２６ｈ　頭部
２６ｍ　ピン本体
３０　　上部ヒンジ受け片
３６　　ピン用切欠き（切欠き）
３６ｅ　円弧部
４０　　係合部材
４１　　連結ピン（支持軸）
４４　　傾斜板部（傾斜面）
４５　　爪
４７　　コイルバネ
４８　　操作用レバー[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, there is provided a hinge fixed to an upper corner of a door, the hinge having a hinge pin serving as a center of rotation of the door, and a hinge fixed to an upper corner of a support frame for supporting the door, The present invention relates to a hinge device for a pachinko machine including a hinge receiving piece that rotatably supports an upper end portion of one hinge pin.
[0002]
[Prior art]
A hinge device of a conventional pachinko machine is generally configured as shown in a perspective view of FIG.
That is, the hinge device 80 includes an upper hinge piece 83 and a lower hinge piece 85 fixed to the upper left corner and the lower left corner of the front frame 2 to which the game board or the like is attached, and a pachinko machine formed in a substantially rectangular frame shape. An upper hinge receiving piece 82 and a lower hinge receiving piece 84 are respectively fixed to the upper left corner and the lower left corner of the machine frame 3 serving as the main body case of the machine.
[0003]
A hinge pin 83p is formed downward at the tip of the upper hinge piece 83, and a through hole 82k into which the hinge pin 83p is inserted is formed at the tip of the upper hinge receiving piece 82. A through hole 85k is formed at the tip of the lower hinge piece 85, and a hinge pin 84p inserted into the through hole 85k is formed at the tip of the lower hinge receiving piece 84 so as to face upward.
For this reason, the front frame 2 is lifted, and the hinge pin 84p of the lower hinge receiving piece 84 of the machine frame 3 is passed through the through hole 85k of the lower hinge piece 85, and the hinge pin 83p of the upper hinge piece 83 is simultaneously passed through the upper hinge receiving piece 82. By passing through the hole 82k, the front frame 2 can be rotatably attached to the machine frame 3.
[0004]
[Problems to be solved by the invention]
However, according to the above-described hinge device 80 of the pachinko machine, the positioning of the hinge pieces 83 and 85 and the hinge receiving pieces 82 and 84 must be performed simultaneously up and down while the heavy frame 2 is lifted. There is a problem that the assembling work of the front frame 2 to the machine frame 3 is troublesome.
The present invention has been made in order to solve the above-described problems, and provides a hinge device that can easily perform an assembling operation, and has a configuration that does not allow unauthorized assembling to be performed even if the assembling is easy. It is an object to provide a hinge device.
[0005]
[Means for Solving the Problems]
The above-mentioned problem is solved by the invention of each claim.
The invention according to claim 1 is a structure fixed to an upper corner of a door, a hinge piece having a hinge pin serving as a rotation center of the door, and a structure fixed to an upper corner of a support frame supporting the door. A hinge device for a pachinko machine comprising: a hinge receiving piece rotatably supporting an upper end portion of a hinge pin of the hinge piece, wherein the hinge receiving piece is capable of fitting the hinge pin from a radial direction of the hinge pin. A notch having an arc portion capable of rotatably supporting the hinge pin and a hinge pin fitted into the arc portion of the notch to prevent the hinge pin from coming off from the notch. An engagement member, wherein the engagement member is prohibited from moving in a direction away from the head of the hinge pin by an inner surface of the door closed with respect to the support frame. And it features.
[0006]
According to the present invention, the hinge pin of the hinge piece fixed to the upper corner of the door can be fitted into the notch of the hinge receiving piece fixed to the upper corner of the support frame from the radial direction of the hinge pin. After the hinge receiving piece at the lower corner of the support frame and the hinge piece at the lower corner of the door are connected, the hinge receiving piece at the upper corner and the hinge piece can be connected. Therefore, it is not necessary to simultaneously position the upper and lower hinge receiving pieces and the hinge pieces, and the work of assembling the door to the support frame becomes easy.
In addition, the engagement member is prohibited from moving in a direction away from the head of the hinge pin by the inner surface of the door closed with respect to the support frame. For this reason, if the door is closed with respect to the support frame, the hinge pin of the hinge piece will not be incorrectly removed from the notch of the hinge receiving piece.
[0007]
According to the second aspect of the present invention, the engaging member includes a bearing through which the support shaft attached to the hinge receiving piece is passed, a claw formed at the distal end portion, which is hooked on the head of the hinge pin from above, and a base end. And an operation lever formed on the hinge frame. The operation lever is vertically rotatable with respect to a hinge receiving piece fixed to the support frame. Then, when the engaging member is moved upward, the operating lever moves downward and forward to abut on the inner surface of the closed door, and the movement of the claw is prohibited.
[0008]
For this reason, for example, even if the hook of the engaging member is pushed upward using a special tool and the connection between the hinge piece and the hinge receiving piece is illegally released, the operation lever of the engaging member and the door are not moved. The inside can reliably prevent fraud. In the state where the door is opened, the pawl of the engaging member can be easily removed from the head of the hinge pin by pulling the operating lever.
Further, it is preferable that the engaging member is held at a position where the pawl is hooked on the head of the hinge pin by an elastic force.
[0009]
According to the invention of claim 4, a conical surface is formed on the head of the hinge pin, and an inclined surface having an inclination substantially equal to the conical surface is formed outside the claw of the engaging member. When the hinge pin is fitted into the notch of the hinge receiving piece from the radial direction of the hinge pin, the conical surface of the head of the hinge pin presses the inclined surface of the engaging member, so that the claw of the engaging member has an elastic force. At the stage where the conical surface is disengaged from the inclined surface and the hinge pin is fitted into the arc portion of the notch, the claw of the engaging member is hooked on the head of the hinge pin by elastic force. Can be
Therefore, the hinge pin of the hinge piece can be fitted into the notch of the hinge receiving piece with one touch.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the hinge device of the pachinko machine according to the first embodiment of the present invention will be described with reference to FIGS. Here, FIG. 1 is an exploded perspective view of the hinge device of the pachinko machine according to the present embodiment, FIGS. 2 to 4 are perspective views showing a connecting procedure of the hinge device, and FIG. FIG. 6 is a side view of the hinge device with the front frame opened with respect to the machine frame.
The following description will be made with the left and right directions of the machine frame and the front frame set as the X direction, the front-rear direction as the Y direction, and the height direction as the Z direction.
[0011]
The hinge device 10 for a pachinko machine according to the present embodiment is a device for rotatably assembling a front frame 2 on which an amusement board or the like is attached to a substantially square frame-shaped machine frame 3 serving as a main body case of the pachinko machine. is there.
The hinge device 10 includes an upper hinge piece 20 (see FIG. 2 and the like) fixed to the upper left corner of the front frame 2, a lower hinge piece 85 (see FIG. 7) fixed to the lower left corner, and the machine frame 3. An upper hinge receiving piece 30 (see FIG. 2 and the like) fixed to the upper left corner and a lower hinge receiving piece 84 (see FIG. 7) fixed to the lower left corner are provided. Here, the lower hinge piece 85 of the front frame 2 and the lower hinge receiving piece 84 of the machine frame 3 have the same structure as the conventional lower hinge piece 85 and the lower hinge receiving piece 84 shown in FIG. I do. That is, the machine frame 3 corresponds to the support frame of the present invention, and the front frame 2 corresponds to the door of the present invention.
[0012]
As shown in FIG. 1 (A), the upper hinge piece 20 fixed to the upper left corner of the table frame 2 has a substantially rectangular mounting plate 22 which is mounted substantially horizontally in surface contact with the front surface of the table frame 2. And a support plate 24 bent at a right angle to the mounting plate 22 and protruding forward of the front frame 2. The support plate 24 is located above the mounting plate 22 and to the left of the center of the mounting plate 22, and is formed in a substantially U-shape. A pin hole 25 is formed at the tip of the support plate 24 to receive the hinge pin 26. The mounting plate 22 is formed with a plurality of through holes 22k used when fixing the upper hinge piece 20 to the front frame 2 with rivets or the like.
[0013]
The hinge pin 26 is a pin serving as a rotation center of the front frame 2, and includes a pin main body 26m, a large-diameter portion 26r formed above the pin main body 26m, and a substantially frustoconical shape formed at the upper end of the pin main body 26m. 26h. The hinge pin 26 is fixed to the support plate 24 by fitting the large-diameter portion 26r into the pin hole 25 of the support plate 24 and caulking at that position, for example.
[0014]
The upper hinge receiving piece 30 fixed to the upper left corner of the machine frame 3 includes a horizontal flat plate 32 and a vertical flat plate 33 formed at right angles to each other, as shown in FIG. The width dimensions (X-direction dimension, Z-direction dimension) of 32 and 33 are set substantially equal to the length dimension of the mounting plate 22 of the upper hinge piece 20. The depth dimension (Y-direction dimension) between the horizontal flat plate 32 and the vertical flat plate 33 is set substantially equal to the depth dimension L (thickness dimension L) of the machine frame 3. Further, the horizontal flat plate 32 and the vertical flat plate 33 are formed with a plurality of screw holes 39 used for fixing the upper hinge receiving piece 30 to the machine frame 3.
[0015]
On the left side of the center of the horizontal flat plate 32, a receiving portion 32 u protruding forward of the machine frame 3 is formed on the same plane as the horizontal flat plate 32. The receiving portion 32u is formed in the same shape as the support plate 24 of the upper hinge piece 20 in plan view.
A substantially central portion of the receiving portion 32u is cut out in a substantially rectangular shape from a boundary portion with the horizontal flat plate 32 to a tip of the receiving portion 32u, and a vertical wall 34 having a fixed height is provided on both left and right sides of the notched portion 32c. Is drooping. Further, the lower ends of the left and right vertical walls 34 are connected to each other by a connecting plate 35.
For this reason, the notch 32c, the left and right vertical walls 34, and the connecting plate 35 form a groove-like space at a substantially central portion of the receiving portion 32u. An opening 32x defined by the left and right vertical walls 34 and the connecting plate 35 is formed below the boundary between the horizontal flat plate 32 and the receiving portion 32u.
[0016]
The connecting plate 35 is formed with a pin notch 36 into which the hinge pin 26 of the upper hinge piece 20 can be fitted from the hinge pin 26 in the radial direction. As shown in FIG. 1B, the pin notch 36 is formed from the distal end of the connecting plate 35 to a substantially central portion. That is, the notch 36 for the pin is formed by an enlarged portion 36w at the tip, a slit-like introduction portion 36d having a width substantially equal to the outer diameter of the pin main body 26m of the hinge pin 26, and an arc into which the pin main body 26m fits. And a portion 36e.
The pin body 26m (between the head 26h and the large diameter portion 26r) of the hinge pin 26 fits with the arc portion 36e of the notch 36 for the pin, and the substantially frustoconical head 26h of the hinge pin 26 is connected to the connecting plate. The upper hinge piece 20 is rotatably supported by the upper hinge receiving piece 30 by being supported from below by 35.
[0017]
Here, the position of the arc portion 36e with respect to the receiving portion 32u of the upper hinge receiving piece 30 is set equal to the position of the pin hole 25 with respect to the support plate 24 of the upper hinge piece 20. Therefore, the hinge pin 26 of the upper hinge piece 20 is fitted into the arc portion 36e of the upper hinge receiving piece 30, and the support plate 24 and the upper hinge of the upper hinge piece 20 are closed with the front frame 2 closed with respect to the machine frame 3. The receiving portion 32u of the receiving piece 30 completely overlaps. At the periphery of the receiving portion 32u, a reinforcing vertical wall 37 having a height substantially equal to that of the vertical wall 34, excluding the connecting plate 35, is hung down. It is connected to the tip of the wall 34. Further, the base end of the left reinforcing vertical wall 37 is connected to the vertical flat plate 33.
[0018]
An engaging member 40 is mounted in a groove-shaped space formed by the left and right vertical walls 34 and the connecting plate 35 in the receiving portion 32u of the upper hinge receiving piece 30 so as to be vertically rotatable. The engaging member 40 is hung on the head 26h of the hinge pin 26 fitted in the arc portion 36e of the pin notch 36 as described above, thereby preventing the hinge pin 26 from coming off the pin notch 36. Work. As shown in FIG. 5 and the like, the engaging member 40 has a bearing portion 42 that is a center of rotation of the engaging member 40 near the front end, and the bearing portion 42 has the bearing portion 42 shown in FIG. Thus, the connecting pin 41 is passed. The connecting pin 41 has both ends fixed to mounting holes 34t formed in the left and right vertical walls 34 and mounting holes 37t formed in the left reinforcing vertical wall 37, and is substantially parallel to the connecting plate 35. Positioned.
That is, the connecting pin 41 corresponds to the support shaft of the present invention.
[0019]
An upper plate portion 43 having substantially the same width and length dimensions as the connecting plate 35 is formed from a position almost directly above the bearing portion 42 of the engagement member 40 to the tip thereof. The tip of the upper plate portion 43 is folded downward and inward, and an inclined plate portion 44 is formed. Further, the claw 45 is formed by folding back the tip of the inclined plate portion 44 until it is substantially parallel to the upper plate portion 43. The claw 45 has a notch (not shown) having a flat circular arc shape, and the notch is formed so as to be fitted to the pin main body 26m of the hinge pin 26.
[0020]
The engaging member 40 can rotate rightward in FIG. 5 and the like to a position where the lower surface of the claw 45 contacts the upper surface of the connecting plate 35, and at the right rotation limit position (see FIGS. 5 and 6). Is hooked on the head 26h of the hinge pin 26 fitted in the pin notch 36, and the notch of the claw 45 is fitted to the pin main body 26m of the hinge pin 26. In this state, the notch of the claw 45 and the arc portion 36e of the notch 36 for the pin continue in a substantially circular shape in the circumferential direction. Therefore, the hinge pin 26 can be smoothly rotated around the axis by the action of the notch of the claw 45 and the arc portion 36e of the notch 36 for the pin, and the head 26h of the hinge pin 26 is connected to the connection plate 35 and the claw 45. Supported from below.
[0021]
When the engaging member 40 is at the right rotation limit position, the upper plate 43 of the engaging member 40 is held substantially flush with the upper surface of the receiving portion 32u. Further, the inclined plate portion 44 of the engaging member 40 is substantially parallel to the outer peripheral surface (conical surface) of the head 26h of the hinge pin 26. Therefore, as described later, when the hinge pin 26 is fitted into the pin notch 36 of the connecting plate 35, the surface of the inclined plate portion 44 of the engaging member 40 is pressed by the conical surface of the head 26h of the hinge pin 26. This allows the claw 45 of the engagement member 40 to be pushed up by the conical surface. That is, the surface of the inclined plate portion 44 corresponds to the inclined surface of the present invention.
[0022]
As shown in FIG. 1A, a coil spring 47 urged to rotate the engaging member 40 rightward in the figure around the connecting pin 41 passed through the bearing portion 42 of the engaging member 40. Is installed. That is, the claw 45 of the engagement member 40 is held at a position (right rotation limit position) where it engages with the head 26h of the hinge pin 26 by the spring force of the coil spring 47.
By rotating the engaging member 40 counterclockwise in FIG. 1A against the spring force of the coil spring 47, the engagement between the claw 45 of the engaging member 40 and the head 26 h of the hinge pin 26 is prevented. Can be canceled.
[0023]
The engaging member 40 is provided with an operating lever 48 behind the bearing portion 42. The operating lever 48 is a lever used to rotate the engaging member 40 to the left in FIGS. 5, 6 and the like against the spring force of the coil spring 47. Further, the operation lever 48 has a function of preventing the claw 45 of the engaging member 40 from being illegally detached from the head 26h of the hinge pin 26 in a state where the front frame 2 is closed with respect to the machine frame 3. Also have.
[0024]
The operation lever 48 is formed in a substantially lateral L-shape by a lateral lever 48f and a vertical lever 48s, and the lateral lever 48f is slightly lower than the upper plate 43 and is parallel to the upper plate 43. Is formed. As shown in FIG. 6 and the like, the horizontal lever 48f is disposed inside the horizontal plate 32, and the distal end of the horizontal lever 48f is passed through the opening 32x, and is connected to the upper plate 43 via a step 48d. Have been. Therefore, in a state where the engaging member 40 is held at the engagement position (right rotation limit position) between the claw 45 and the hinge pin 26 by the spring force of the coil spring 47, the horizontal lever 48f is substantially attached to the lower surface of the horizontal plate 32. Come into contact.
[0025]
As shown in FIG. 5, the vertical lever 48 s of the operation lever 48 is held at a position where the front frame 2 is substantially in contact with the back surface of the front frame 2 with the front frame 2 closed with respect to the machine frame 3. . For this reason, in FIG. 5, for example, even if a special tool is used to push up the claw 45 of the engaging member 40, the vertical lever of the operating lever 48 is started when the engaging member 40 starts to turn left. Since 48s is inclined forward and downward to come into contact with the back surface of the front frame 2, left rotation of the engaging member 40 is prohibited.
[0026]
Next, assembling of the front frame 2 to the machine frame 3 using the hinge device 10 of the pachinko machine according to the present embodiment will be described.
When assembling the table frame 2 to the machine frame 3, first, as shown in the lower half of FIG. 7, the table frame 2 is lifted, and the hinge pin 84 p of the lower hinge receiving piece 84 of the machine frame 3 is attached. The lower hinge piece 85 of the front frame 2 is inserted into the through hole 85k. Thus, the connection between the lower hinge piece 85 and the lower hinge receiving piece 84 is completed.
[0027]
Next, as shown in FIG. 2, the hinge pin 26 of the upper hinge piece 20 of the front frame 2 is moved to the upper hinge receiving piece of the machine frame 3 while the front frame 2 is held substantially at right angles to the machine frame 3. 30 is moved in the direction of the pin notch 36. Then, as shown in FIG. 3, with the outer peripheral surface (conical surface) of the head 26 h of the hinge pin 26 abutting against the surface of the inclined plate portion 44 of the engaging member 40, the pin main body 26 m of the hinge pin 26 ( The head 26h and the large-diameter portion 26r) are pressed into the pin notch 36 from the radial direction. Thereby, the engagement member 40 resists the spring force of the coil spring 47 by the sliding action between the conical surface of the head 26h of the hinge pin 26 and the surface of the inclined plate portion 44 of the engagement member 40. Turn left.
[0028]
Then, the head 26h of the hinge pin 26 is disengaged from the inclined plate portion 44 of the engaging member 40, and the pin main body 26m of the hinge pin 26 is fitted into the arc portion 36e of the notch 36 for the pin (see FIG. 1B). Accordingly, the engaging member 40 is rotated rightward by the spring force of the coil spring 47. Thereby, as shown in FIGS. 4 and 6, the claw 45 of the engagement member 40 is hooked on the head 26h of the hinge pin 26, and the connection between the upper hinge piece 20 and the upper hinge receiving piece 30 is completed.
[0029]
When the connection between the lower hinge piece 85 and the lower hinge receiving piece 84 and between the upper hinge piece 20 and the upper hinge receiving piece 30 is completed in this way, the front frame 2 is centered on the hinge pins 84p and 26 with respect to the machine frame 3. Can be rotated. When the front frame 2 is closed with respect to the machine frame 3, the vertical lever 48 s of the operating lever 48 of the engaging member 40 is held at a position where the vertical lever 48 s substantially abuts the back surface of the front frame 2 as shown in FIG. You. For this reason, for example, even if a special tool is used to push up the claw 45 of the engaging member 40, the vertical lever 48s of the operating lever 48 is set to the front frame when the engaging member 40 starts to turn left. 2, and the left rotation of the engaging member 40 is prohibited. Therefore, if the front frame 2 is closed with respect to the machine frame 3, the hinge pins 26 of the upper hinge piece 20 will not be incorrectly removed from the pin notches 36 of the upper hinge receiving piece 30.
[0030]
Next, a procedure for removing the front frame 2 from the machine frame 3 will be described.
First, the front frame 2 is opened by about 90 ° with respect to the machine frame 3 (see FIG. 6). Next, in this state, the operating lever 48 is pulled toward the user to rotate the engaging member 40 to the left in the drawing. As a result, the claw 45 of the engagement member 40 moves upward, and the engagement between the claw 45 and the head 26h of the hinge pin 26 is released. By pulling out the hinge pin 26 from the pin notch 36 in this state, the connection between the upper hinge piece 20 and the upper hinge receiving piece 30 can be released.
Next, the connection between the lower hinge piece 85 and the lower hinge receiving piece 84 can be released by lifting the front frame 2 and pulling out the hinge pin 84p of the lower hinge receiving piece 84 from the through hole 85k of the lower hinge piece 85.
[0031]
Thus, according to the hinge device 10 of the pachinko machine according to the present embodiment, when assembling the front frame 2 to the machine frame 3, the upper and lower hinge receiving pieces 30, 84 and the hinge pieces 20, 85 are connected. It is not necessary to perform positioning at the same time, and the assembling work is facilitated.
Further, the inner surface of the front frame 2 closed with respect to the machine frame 3 prevents the engagement member 40 from moving away from the head 26h of the hinge pin 26. For this reason, if the front frame 2 is closed with respect to the machine frame 3, the hinge pins 26 of the upper hinge piece 20 will not be incorrectly removed from the pin notches 36 of the upper hinge receiving piece 30.
[0032]
In this embodiment, the hinge device 10 in which the front frame 2 is rotatably assembled to the machine frame 3 has been described as an example. And the like can be applied to a hinge device for rotatably assembling.
[0033]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the assembly | attachment operation | work of a door with respect to a support frame can be performed easily compared with the case where an upper and lower hinge piece and a hinge receiving piece are connected simultaneously. In addition, the hinge pin of the hinge piece is not illegally removed from the notch of the hinge receiving piece with the door closed with respect to the support frame.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view (FIG. 1A) of a hinge device of a pachinko machine according to Embodiment 1 of the present invention, and a plan view showing a notch for a pin (an enlarged view of a portion B in FIG. 1B).
FIG. 2 is a perspective view showing a connecting procedure of the hinge device.
FIG. 3 is a perspective view showing a connecting procedure of the hinge device.
FIG. 4 is a perspective view showing a connecting procedure of the hinge device.
FIG. 5 is a side view of the hinge device in a state where the front frame is closed with respect to the machine frame.
FIG. 6 is a side view of the hinge device in a state where the front frame is opened with respect to the machine frame.
FIG. 7 is a perspective view illustrating a hinge device of a conventional pachinko machine.
[Explanation of symbols]
2 Table frame (door)
3 Machine frame (support frame)
20 Upper hinge piece 26 Hinge pin 26h Head 26m Pin body 30 Upper hinge receiving piece 36 Notch for pin (notch)
36e Arc part 40 Engaging member 41 Connecting pin (support shaft)
44 Inclined plate (inclined surface)
45 Claw 47 Coil spring 48 Operation lever

Claims

A hinge piece having a hinge pin serving as a center of rotation of the door in a structure fixed to an upper corner of the door, and a hinge piece having a structure fixed to an upper corner of a support frame supporting the door; A hinge device for a pachinko machine including a hinge receiving piece rotatably supporting an upper end portion,
The hinge receiving piece,
A notch provided with an arc portion capable of rotatably supporting the hinge pin, with a structure capable of fitting the hinge pin from a radial direction of the hinge pin,
An engagement member that is hung on the head of the hinge pin fitted into the arc portion of the notch and prevents the hinge pin from coming off from the notch,
The hinge device of a pachinko machine, wherein the engagement member is configured to be prevented from moving in a direction away from a head of the hinge pin by an inner surface of a door closed with respect to the support frame.

It is a hinge device of the pachinko machine according to claim 1,
The engagement member is
A bearing through which a support shaft attached to the hinge receiving piece is passed;
A claw that is formed at the tip and is hung from above on the head of the hinge pin,
An operating lever formed at the base end,
It is a configuration that can rotate vertically with respect to the hinge receiving piece fixed to the support frame,
When the claw of the engaging member is disengaged from the head of the hinge pin and the engaging member is moved upward, the operating lever moves downward and forward to contact the inner surface of the closed door, and A hinge device for a pachinko machine, wherein movement of a nail is prohibited.

A hinge device for a pachinko machine according to any one of claims 1 and 2,
The hinge device for a pachinko machine, wherein the engaging member is held at a position where the engaging member is hung on the head of the hinge pin by an elastic force.

A hinge device for a pachinko machine according to claim 3, wherein
A conical surface is formed on the head of the hinge pin,
On the outside of the pawl of the engaging member, an inclined surface having an inclination substantially equal to the conical surface is formed,
When the hinge pin is fitted into the notch of the hinge receiving piece from the radial direction of the hinge pin, the conical surface of the head of the hinge pin presses the inclined surface of the engagement member, so that the claw of the engagement member is elastic. When the hinge pin is pushed up against the force and the conical surface is disengaged from the inclined surface and the hinge pin is fitted into the arc portion of the notch, the claw of the engaging member is elastically attached to the head of the hinge pin. A hinge device for a pachinko machine, which is configured to be hung.