【０００１】
【発明の属する技術分野】
本発明は、開き戸に用いられる錠前に付加して装着される補助錠の取付具及びこれに用いる補助錠の改良に関する。
【０００２】
【従来の技術】
玄関出入り口等の開き戸に用いられる錠前が窃盗団により破壊されるいわゆるピッキングが多発しているが、これの対策として正規の錠前の他に補助錠を簡易に付加することが行われており、その例として例えば図６に示す防犯錠がある。図６はこの補助錠取付金具５及び補助錠６を枠Ｘ１に取付けた状態を示す一部断面の概略平面図である。先ず取付け位置として正規の錠前から離隔した上又は下の位置を選んでスチール製枠Ｘ１の室内側角に溝を有するＬ型金具５５を両面テープにより貼付け、室外側から枠Ｘ１に沿った左右平面部５１と前後平面部５２とで断面略Ｌ字形に形成されこれに連設して室内側に断面略コ字形の挟込み部５３で形成されている取付金具５を室外側から室内側枠を挟込むようにかぶせ、挟込み部５３の室内側端末に上下一対の固定ねじ５４を出入り可能に螺着しＬ型金具５５の溝に先端を合わせてねじ込み、室外側端末の左右平面部５１に補助錠６を装着し、室外側より補助錠６のハウジング６２に内臓されたシリンダー錠を鍵によって施解錠しこれに対応して左右に移動可能なデッドボルト６１によって開閉扉Ｙの開放を抑制可能としたものである。ここで、７は扉Ｙの端部前面の固着された弾性材よりなる戸当たりである。
【０００３】
【発明が解決しようとする課題】
前記従来の補助錠取付金具５が断面略コ字形の挟込み部５３を用い固定ねじ５４の出入りの調節によって枠Ｘ１に固着しているため組立ては容易であるが、固定ねじ５４の出入り量には限度があり，多仕様の枠に柔軟に対応することは困難であり、取付け上下位置は正規の錠前の上又は下に位置をずらさなければならないという制約があり、選定や操作の面での課題を有している。又、固定ねじ５４が室内側に突出しており強度や外観の面から課題を有している。更に、補助錠６のシリンダー錠の施解錠によってデッドボルト６１の左右移動量を確保するためにはハウジングが大型となる上、デッドボルト６１端部側より方向Ｐに向けて加えられる殴打によってシリンダー錠が破壊され易いといった課題を有している。これに対し、本発明は簡易な構造で、多仕様の枠に柔軟に対応可能で、取付け位置は正規の錠前近傍とし、室内側への突出部分がなく強度や外観に優れた補助錠取付具及びこれに用いるデッドボルトの左右移動量を確保でき耐ピッキング性に優れた小型な補助錠を得ることを目的とする。
【０００４】
【課題を解決するための手段】
この目的を達成するために、
請求項１の発明にあっては、 イ）垂直方向におかれた板状の前後方向材２１ａの略中央部に縦長略方形の開口部２１ｃが穿設され該開口部２１ｃの上下端から一方側水平方向に張出している一対の舌片状の固定片２１ｄを有する枠固着部２１と、ロ）前記前後方向材２１ａの前側面から前記一方側へ直交して延出する前板２２ｂと該前後方向材２１ａとで略Ｌ字形に形成され、該前板２２ｂに連結孔２２ｆが穿設されている錠取付部２２と、ハ）表面が実質的に平坦で前記前板２２ｂより厚い板状又はブロック状の前記連結孔２２ｆに嵌着可能な磁石１４とを備え、ニ）前記各固定片２１ｄは正規錠前側が出入りする略方形孔に嵌着可能で、且つ前記磁石１４は一方面を補助錠側に固着し他方面を前記前板２２ｂから突出させ枠前側面に吸着可能とした補助錠取付具により解決した。
請求項２の発明にあっては、イ）垂直方向におかれた板状の前後方向材１１ａと該前後方向材１１ａの前端一方側に直交する左右方向材１１ｂとで略Ｌ字形に形成され、該前後方向材１１ａの略中央部に縦長略方形の開口部１１ｃが穿設され該開口部１１ｃの上下端から該一方側水平方向に張出している一対の舌片状の固定片１１ｄを有する枠固着部１１と、ロ）前記左右方向材１１ｂの自由端側面から前方に延出する連結板１２ａと該連結板１２ａの自由端側面から前記一方側へ直交して延出する前板１２ｂとで略Ｌ字形に形成され、該前板１２ｂに連結孔１２ｆが穿設されている錠取付部１２と、ハ）表面が実質的に平坦で前記前板１２ｂより厚い板状又はブロック状の前記連結孔１２ｆに嵌着可能な磁石１４とを備え、ニ）前記各固定片１１ｄは正規錠前側が出入りする略方形孔に嵌着可能で、且つ前記磁石１４は一方面を補助錠側に固着し他方面を前記前板１２ｂから突出させ枠前側面に吸着可能とした補助錠取付具により解決した。
【０００５】
請求項３の発明にあっては、イ）外筒本体３２ａの軸芯部に嵌合孔３２ｃが穿設された外筒３２と、該嵌合孔３２ｃに摺動可能とされた内筒本体３３ａの前端面より鍵３１が挿着可能な鍵孔３３ｄが穿設され該内筒本体３３ａの後端側に連設された段部３３ｂの周面に切込み３３ｅが設けられ該段部３３ｂとで断面異形部が形成され該段部３３ｂに小突起３３ｆが突設されている内筒３３と、ロ）前記外筒３２及び内筒３３間に移動可能なピン群又はタンブラー群によって該内筒３３の回動を可又は否とするシリンダー錠と、ハ）円板状のカム本体３５ａの軸芯部に前記内筒３３の断面異形部が嵌着可能に穿設された中抜き３５ｂと、該カム本体３５ａ後面に突設されている円柱状の小突起３５ｃとを有するカム３５と、ニ）後部は外周の少なくとも９０度の中心角範囲に歯３４ａと残余が該歯３４ａの刃先円弧面３４ｂとで形成され軸芯部は該歯３４ａの刃底と同じ円周面３４ｃより僅かに小さく前記カム３５が摺動可能な円周面３４ｅが形成され、前部は外周が歯３４ａの刃底を超えない円周面３４ｃで軸芯部３４ｄは前記内筒本体３３ａが嵌着可能に形成され、該軸芯部３４ｄと円周面３４ｅとの境界部には前記段部３３ｂが回動可能な円弧面３４ｇと前記小突起３３ｆが回動可能な円弧面３４ｆとを組合わせた開口部が形成されている歯車３４と、ホ）板状略方形の基部３６ａと中央部上方の略方形のロック部３６ｂとで略凸形に形成され、該基部３６ａの上方と該ロック部３６ｂに跨がって上向き凹溝３６ｃと浅底下向き凹溝３６ｄとを組合せた開口部が穿設されているロック板３６と、ヘ）ばね３７と、ト）横長ブロック状のデッドボルト本体３８ａが前部側よりフラットな第一層と、中間部の中央部下端に前記歯３４ａに噛合可能なラック３８ｇが歯先を下向きに設けられた第二層と、後部下端より前記ロック部３６ｂが着脱可能な略方形状切欠部３８ｅが間隔をおいて一対配設され中間下方に略方形の突出部３８ｆを有する第三層とで一体に形成されているデッドボルト３８と、チ）略方形の座板３０と、リ）前側は基部３９ａと略中央部に前記内筒３３が操作可能な円形窓３９ｃをもった突出部３９ｂとで形成され、後側は上下端部に張出している前記座板３０と前記前板１２ｂ又は２２ｂの上下部が収納可能な一対の突片３９ｅと中央部より上方寄りに水平方向に前記デッドボルト３８が左右に摺動可能な形状の受け溝３９ｄと略中央部に前記外筒３２が嵌着可能な外筒収納孔３９ｎが該円形窓３９ｃと連通し、該外筒収納孔３９ｎの後端回りに平坦なロック板摺動面３９ｍ、縦溝３９ｊ及び３９ｋが設けられてるハウジング３９とを備え、ヌ）前記外筒３２を前記外筒収納孔３９ｎに嵌着して固着し、前記ラック３８ｇの歯先を下向きとし前記受け溝３９ｄに摺動可能とし、前記内筒本体３３ａに前記軸芯部３４ｄを摺動可能に挿着し前記小突起３３ｆは前記円弧面３４ｆに前記段部３３ｂは前記円弧面３４ｇにそれぞれ摺動可能とされ、前記歯３４ａは前記ラック３８ｇと噛合い前記内筒３３の鍵３１による回動により前記デッドボルト３８を左右に移動可能とし、前記中抜き３５ｂを前記内筒３３の断面異形部に合わせて嵌着し、前記凹溝３６ｃ及び３６ｄで形成された開口部に前記小突起３５ｃを通し、前記ロック板摺動面３９ｍ及び縦溝３９ｊに前記ロック板３６を上下に摺動可能に当接し、前記ばね３７を前記基部３６ａと下側突片３９ｅ間に介在させ前記ロック板３６を上方に付勢し、前記上下突片３９ｅと前記左右縦溝３９ｋとで囲まれた空間に前記座板３０を嵌着し固着具３０ｄにより前記ハウジング３９に該座板３０が固着されている請求項１又は２の補助錠取付具に用いる補助錠により解決した。
請求項４の発明にあっては、上向き凹溝３６ｃは円弧状で、下向き凹溝３６ｄは台形状で該下向き凹溝３６ｄは該上向き凹溝３６ｃの円弧の延長部分より食出さない範囲内の形状とされている請求項３に記載の補助錠とするのが好ましい。請求項５の発明にあっては、ロック板３６の基部３６ａ及びロック部３６ｂの境に左右対称直線状の傾斜隅部３６ｅが設けられ、デッドボルト３８の切欠部３８ｅの左右端に前記傾斜隅部３６ｅに合わせた傾斜隅部３８ｈを有している請求項３又は４に記載の補助錠とするのが好ましい。
請求項６の発明にあっては、内筒本体３３ａの段部３３ｂ後端面軸芯部に先端細径部のプラグ３３ｇが突設され、座板３０の左右中央部の下寄り位置に前記プラグ３３ｇ先端が摺動可能な通し孔３０ｃが穿設され、前記通し孔３０ｃに前記プラグ３３ｇの先端を挿着して前記ハウジング３９に該座板３０が固着されている請求項３〜５のいずれかに記載の補助錠とするのが好ましい。
【０００６】
【発明の実施の形態】
本発明の実施の形態を図面に基づき以下詳細に説明する。
図１及び２は、本発明の補助錠取付具の第一例及び補助錠を前側及び後側よりみた分解斜視図である。
図３は、本発明の補助錠取付具の第二例を前側及び後側よりみた分解斜視図である。
図４は、本発明の補助錠のロックボルトの一例である。
図５は、 本発明の補助錠の歯車の一例である。
図６は、従来例の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。
図７は、（ａ）図１、２の補助錠を組立て補助錠取付具の第一例との関係を示す斜視図である。（ｂ）（ａ）の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。
図８は、図１、２の補助錠を組立て補助錠取付具の第二例との関係を示し、（ａ）左勝手の補助錠取付具及び補助錠の斜視図である。（ｂ）（ａ）の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。（ｃ）右勝手の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。
図９は、本発明の補助錠の作動を示し、（Ａ）解錠状態から（Ｅ）施錠状態までの各変化を示す概略裏面図である。
以下の説明において、錠前において鍵挿入による開閉操作を行う通常室外側を前方向、その反対側を後方向とし、前より後に向かって左方向、右方向及び上下とし、各部材の構成は補助錠の使用状態において説明する。又ここで左右方向は使い勝手に合わせて入替え可能であり、それらをまとめると一方、他方となるが説明の便宜上より上記した左方向、右方向として説明する。
又同様の構成要素には、同−符号を付して詳細説明を省略する。
【０００７】
本発明の補助錠取付具及び補助錠について、先ず正規の錠前が扉外面に装着されているいわゆる面付けタイプの第一例の補助錠取付具１を図１、２、７を参照して説明し、ついで正規錠前が扉内面に装着されているいわゆる埋込みタイプの第二例の補助錠取付具２を図３、８を参照して説明し、補助錠取付具１、２のいずれにも共通して用いられる補助錠３を図１、２、７、８を参照して説明する。第一例の補助錠取付具１は、枠固着部１１と、錠取付部１２と、固着具１３と、磁石１４とを有する。又後述する座板３０及び固着具３０ｄは補助錠取付具１と補助錠３との連結材として用いられるが、説明の便宜上その構成を先に説明する。ここで説明するのは図１、２の右勝手の例であり、左勝手の例では左右が逆となる。
枠固着部１１は金属製で、垂直方向におかれた板状の前後方向材１１ａと該前後方向材１１ａの前端に左側へ直交する左右方向材１１ｂとで略Ｌ字形に形成され、前後方向材１１ａには略中央部に縦長の略方形の開口部１１ｃが穿設され該開口部１１ｃの上下端から左右方向材１１ｂ側の水平方向に張出している一対の舌片状の固定片１１ｄとを有している。ここで、開口部１１ｃは後述する図７に示す枠Ｘ１に穿設されている正規錠前のラッチ又はデッドボルトが出入りする縦長の略方形孔８１と同様で該ラッチ又はデッドボルトが出入り可能な大きさとされ、固定片１１ｄの前後幅は開口部１１ｃの前後幅より僅かに小さくとられている。
錠取付部１２は金属製で、左右方向材１１ｂの自由端側面から後方向に延出する連結板１２ａと該連結板１２ａの自由端側面から左側へ直交して延出する前板１２ｂとで略Ｌ字形に形成され、前板１２ｂの自由端側面には後方向に向けて補強及び美観上のための折曲片１２ｃが設けられ、前板１２ｂのの略中央部に後述する磁石１４が嵌着可能な形状の本例では縦長略方形状連結孔１２ｆが穿設され、前板１２ｂの中央部上下端部に一対の皿付き孔１２ｄが穿設され、好ましい構成として前板１２ｂの左右端部上下に間隔をおいて補強のための複数個のリブ１２ｅが突設されている。ここで、連結孔１２ｆの穿設位置は必ずしも前板１２ｂの略中央部に限定されず、中部のいずれかであればよく、折曲片１２ｃは省略してもよい。
座板３０は後述する補助錠３のハウジング後面側に嵌着可能な形状例えば弧状の四隅部をもった略方形材で、左右中央部の下寄り位置に後述する補助錠の内筒後端のプラグの先端細径部が摺動可能な通し孔３０ｃが穿設され、中央部上下に前記皿付き孔１２ｄ及び後述する補助錠３のハウジング後面中央部上下側のねじ孔の対応位置に一対の通し孔３０ａが穿設され、後述する補助錠３のハウジング後面左又は右上下側のねじ孔の対応位置に前記通し孔１３ａの左又は右側に一対の皿付き孔３０ｂが穿設されている。
磁石１４は永久磁石で、板状で、厚みは前板１２ｂの厚みより大きくとられ、一方面は座板３０の後面に接着され、他方面は錠取付部１２の前板１２ｂに穿設された連結孔１２ｆに嵌着され前板１２ｂ後面より突出されて補助錠取付具１と補助錠３とを強固に連結し、その形状に限定はないが、後述する枠Ｘ１前面との固着を安定的に確保するには、強力な磁力をもち吸着面積を可及的に広くとれるように、ハウジングに納まる範囲内で本例に示す縦長の略方形状にとるのが好ましい。又必ずしも板状でなくブロック状であってもよいし、吸着可能であれば前板１２ｂの厚みより大きくなくてもよく、少なくとも枠Ｘ１との固着が安定的に得られるように表面が実質的に平坦であればよい。
固着具１３は皿付き孔１２ｄ、通し孔３０ａ及び後述する補助錠３のハウジング後面中央部上下側のねじ孔３９ｆに挿着可能な例えば頭付小ねじである。固着具３０ｄは皿付き孔３０ｂ及び後述するハウジング後面左上又は右下側のねじ孔３９ｇに挿着可能な例えば頭付小ねじである。
【０００８】
第二例の補助錠取付具２は、枠固着部２１と、錠取付部２２と、固着具１３及び磁石１４を有し、補助錠３とを連結するために座板３０及び固着具３０ｄを用いている。ここで、座板３０、固着具１３、３０ｄ及び磁石１４はそれぞれ第一例の補助錠取付具１において説明した通りであり詳細説明を省略する。ここで説明するのは図３の右勝手の例であり、左勝手の例では左右が逆となる。
枠固着部２１は金属製で、垂直方向におかれた板状の前後方向材２１ａの略中央部に縦長の略方形の開口部２１ｃが穿設され、開口部２１ｃの上下端から左側水平方向に張出している一対の舌片状の固定片２１ｄを有している。ここで、開口部２１ｃは後述する図８に示す枠Ｘ１に穿設されている正規錠前のラッチが出入りする縦長の略方形孔８４と同様で該ラッチが出入り可能な大きさとされ、固定片２１ｄの前後幅は開口部２１ｃの前後幅より僅かに小さくとられている。
錠取付部２２は金属製で、前後方向材２１ａの前側面から左側へ直交して延出する前板２２ｂと該前後方向材２１ａとで略Ｌ字形に形成され、前板２２ｂの自由端側面には後方に向けて折曲片２２ｃが設けられ上下略中央部に磁石１４が嵌着可能な形状の連結孔２２ｆが穿設され、前板２２ｂの中央部上下に一対の皿付き孔２２ｄが穿設され、好ましい構成として前板２２ｂの左右端部上下に間隔をおいて補強のための複数個のリブ２２ｅが突設されている。ここで折曲片２２ｃ及び連結孔２２ｆは錠取付部１２で説明したと同様に変化させてもよい。
【０００９】
次に補助錠取付具１、２のいずれかに用いられる補助錠３は、鍵３１、外筒３２、内筒３３、歯車３４、カム３５、ロック板３６、バネ３７、デッドボルト３８、ハウジング３９を有し、外筒３２と内筒３３とは後述するピン群と、ばねと、孔埋板と組合わせて公知のシリンダー錠を構成している。更に補助錠取付具１又は２と連結するため補助錠３後端部に蓋を兼ねて座板３０を用いている。
鍵３１は、握り部３１ａと該握り部３１ａから後述するシリンダーの各ピン群の出入りに対応する形状に突出形成された山部３１ｂとからなっている公知のものである。
外筒３２は、略円筒状の外筒本体３２ａの軸芯部に内筒３３が嵌合可能な嵌合孔３２ｃが穿設され、前端面３２ｄと内筒３３の軸芯部前端面３３ｃとは面一とされ、外筒本体３２ａの外周面に後端面３２ｂ側より軸芯に平行に平面視において略Ｕ字形浅底で蟻溝形の嵌合溝３２ｅが複数列例えば４列設けられ、各嵌合溝３２ｅには放射状に嵌合孔３２ｃに達する通常同径のピン孔３２ｆが穿設されている。外筒本体３２ａの外周面において嵌合溝３２ｅのない対称位置２か所に例えば円弧面状のキー溝３２ｇが設けられ、後述するハウジング３９のキー溝３９ｉと対応させてある。他に各ピン孔３２ｆには挿入される公知のボトムピン３２ｈ、ドライバー３２ｉ及び通常コイルばねのばね３２ｊとからなるピン群と、各嵌合溝３２ｅの蟻溝に後端面３２ｂ側よりピン孔３２ｆからのピン群の飛出し防止のために圧入される孔埋板３２ｋとを有している。
内筒３３は、嵌合孔３２ｃに嵌合され摺動可能とされた略円筒状の内筒本体３３ａの軸芯部前端面３３ｃ側より鍵３１の山部３１ｂが挿着可能な鍵孔３３ｄが穿設され、内筒本体３３ａの後端側に段部３３ｂが連設され、段部３３ｂの後端周面に平行面の切込み３３ｅが設けられ該段部３３ｂと切込み３３ｅとで断面異形部が形成され、切込み３３ｅの直前の段部３３ｂ周面に円柱状の小突起３３ｆが外側に向けて突設され、段部３３ｂ後端面軸芯部に後側に向けて前記断面異形部より先端細径部を有する段付きプラグ３３ｇが突設され、図示省略するが内筒本体３３ａには嵌合孔３２ｃとの嵌合状態において各ピン孔３２ｆと連通する対応位置に軸芯部に向けて放射状に浅底のめくらピン孔が穿設されている。小突起３３ｆは先端が内筒本体３３ａの外周面から突出しない高さにとられている。ここで、プラグ３３ｇは必ずしも段付きでなく円柱状であってもよいが、座板３０との組立上は段付きとした方が好ましい。又切込み３３ｅは必ずしも平行面でなくてもよく断面異形部が形成されればよく、小突起３３ｆは円柱状でなく異形であってもよい。
【００１０】
歯車３４は、後部は外周の少なくとも９０度の中心角範囲に切られた歯３４ａと残余の該歯３４ａの刃先円弧面３４ｂとを連設し軸芯部は歯３４ａの刃底と同じ円周面３４ｃより僅かに小さく後述するカム３５が摺動可能な大きさの円周面３４ｅが形成され、前部は外周が歯３４ａの刃底と同じ又はこれを超えない円周面３４ｃで軸芯部３４ｄは内径が内筒本体３３ａが嵌着可能な大きさのリング状体に形成され、軸芯部３４ｄと円周面３４ｅとの境界をなす中部は後述する組立て時に段部３３ｂが回動可能な大きさの円弧面３４ｇと小突起３３ｆが回動可能な大きさの円弧面３４ｆとを組合わせた開口部が形成されている。ここで、円弧面３４ｇは円弧面３４ｆに比し半径を小さくとられ、内筒３３の回動により小突起３３ｆが円弧面３４ｆ及び３４ｇの境界３４ｈのいずれかに達したときに歯車３４を回動可能としている。本例では境界３４ｈの間にある円弧面３４ｇは円周角δで例えば１２０度にとられ、歯３４ａの歯切り範囲は円周角β＋γで例えば１４０＋２０＝１６０度にとられているが、この角度を調整して後述するデッドボルト３８の左右移動量を調整可能である。
カム３５は、円板状のカム本体３５ａと該カム本体３５ａの軸芯部に前記内筒３３の段部３３ｂと切込み３３ｅとで形成された断面異形部が嵌着可能な形状の中抜き３５ｂが穿設され、中抜き３５ｂの切込み３３ｅに合わせた面の一方中央部と外周間に円柱状の小突起３５ｃが後側に向けて突設されている。
ロック板３６は、板状略方形の基部３６ａと該基部３６ａの中央部上方に連設された左右幅ｗ×上下高さｈの略方形のロック部３６ｂとで略凸形に形成され、基部３６ａの上方とロック部３６ｂに跨がって円弧状の上向き凹溝３６ｃと台形状の下向き凹溝３６ｄとを組合わせて形成された開口部が穿設され、基部３６ａとロック部３６ｂとの境に開口部によって肉厚が薄くなるのを防止するために左右対称形で角度αをなす直線傾斜状の傾斜隅部３６ｅが設けられている。傾斜隅部３６ｅは補強のためのもので必須要素ではなく、基部３６ａとロック部３６ｂを略直角につなげてもよい。ここで、下向き凹溝３６ｄは上向き凹溝３６ｃの円弧の延長部分より食出さない範囲内の大きさとされ、本例では左右対称形で角度αをなす直線傾斜部分と中央の直線水平部分とで台形状とされこの形状によって、後述するロック板３６動作として急激な下降が行い得るので好ましいが、下降はやや緩やかとはなるものの下向き凹溝３６ｄを上向き凹溝３６ｃより曲率の小さい湾曲面状としてもよい。ここで、傾斜の角度αは例えば１１０度にとられている。
ばね３７は、通常ねじりコイルばねで、中央部のコイル部から上下に先端腕部を有しているが、弓形の板ばねや圧縮コイルばねを用いることもできる。
デッドボルト３８は、成型し易い金属例えば亜鉛ダイキャスト等で得られた横長略方形ブロック状のデッドボルト本体３８ａと、破壊に対する補強のため好ましい付加要素として例えば焼入れ鋼製丸棒の補強材３８ｂとキャップ３８ｃを有している。デッドボルト本体３８ａは前部の切込みなしの第一層と、中間部の左右中央部下端に歯車３４の歯３４ａと噛合可能なラック３８ｇが歯先を下向きとして設けられた第二層と、後部の下端より左右幅ｗ×上下高さｈのロック板３６のロック部３６ｂが着脱可能な僅かに大きい左右幅Ｗ×上下高さＨの略方形状切欠部３８ｅが間隔をおいて左右に一対配設され中間下方に略方形の突出部３８ｆと左右端にロック板３６の傾斜隅部３６ｅに合わせ角度αをなす傾斜隅部３８ｈとを有する第三層が一体に形成され、デッドボルト本体３８ａ側面より第二層のラック３８ｇを避けた中央部水平方向に円柱状の補強材３８ｂ及びそのキャップ３８ｃとが嵌着可能なめくら丸孔３８ｄが設けられ、ラック３８ｇは歯先を下向きとして立てた状態で使用される。ここで、通常第二層の前後厚みは第一層及び第三層の前後厚みより厚くとられている。又ラック３８ｇは歯先は下向きでなく上向きとしても使用可能ではあるが、ゴミや塵埃等の集積防止の点からは歯先を下向きとするのが好ましい。ここで、第一層乃至第三層は一体に形成されているが、それぞれを別体として作り溶着又はねじ等によって固着してもよいが、量産のときは一体としたほうがコスト安である。ここでデッドボルト本体３８ａは必ずしも略方形でなくてもよく、円柱、多角形又はこれらの組合わせであって横長ブロック状であればよい。又傾斜隅部３６ｅが省略される場合は、傾斜隅部３８ｈも省略される。
【００１１】
ハウジング３９は、補助錠３の外筒３２、内筒３３、歯車３４、カム３５、ロック板３６、バネ３７、デッドボルト３８、座板３０、磁石１４、固着具１３、及び３０ｄを収納している。
ハウジング３９の前側は、略船体形の基部３９ａと、基部３９ａの前側略中央部に内筒３３の後端面３３ｃより僅かに小さい円形窓３９ｃをもった略円筒状突出部３９ｂとで形成されている。
ハウジング３９の後側は、上下端部に張出している座板３０と前板１２ｂ又は２２ｂの上下部が収納可能な一対の湾曲面状の突片３９ｅと、中央部より上方寄りに水平方向にデッドボルト３８がラック３８ｇの歯先を下向きとして立てた状態で左右に摺動可能なような上下幅をもった略コ字形の受け溝３９ｄと、後側より略中央部に外筒３２が嵌着可能な大きさに穿設された外筒収納孔３９ｎが前端は小径の円形窓３９ｃと連通し、外筒収納孔３９ｎの上下に外筒３２のキー溝３２ｇに対応する一対の例えば円弧面状のキー溝３９ｉが刻込まれ別途キー溝３２ｇ及び３９ｉを合わせて挿着される本例では丸棒状の−対のキー３９ｐが用意されている。又外筒収納孔３９ｎの後端回りに平坦なロック板摺動面３９ｍを設け該ロック板摺動面３９ｍの左右端部に沿って後側に向けてロック板３６の基部３６ａが上下に摺動可能な幅及び前後厚みをもった縦溝３９ｊが設けられ、縦溝３９ｊの後側に座板３０が収納可能な幅及び前後厚みをもった上下の縦溝３９ｋが連設されている。さらにロック板摺動面３９ｍの下端一方寄り（図２では前から視て左側）にばね３７の中心コイルを挿着支持可能な略円柱状の小突起３９ｈが突設され、小突起３９ｈの他方寄り（図２では前から視て右側）で下方の突片３９ｅ直上位置及び外筒収納孔３９ｎの軸芯に対し略対称の一方寄りで上方の突片３９ｅ直下位置に座板３０に挿着された固着具３０ｄが螺合可能なねじ孔３９ｇが設けられ、各ねじ孔３９ｇに隣合う中央部位置に前板１２ｂの皿付き孔１２ｄと座板３０の通し孔３０ａ又は前板２２ｂの皿付き孔２２ｄと座板３０の通し孔３０ａに挿着された固着具１３が螺合可能なねじ孔３９ｆが設けられている。上下のねじ孔３９ｆ及び３９ｇの後端面３９１は上下同一平面上におかれ、後述する補助錠３の組立てで最後に座板３０を固着したとき、ロック板３６が上下に及びロックボルト３８が左右にそれぞれ移動可能な高さにとられている。
ここで受け溝３９ｄの形状は略コ字形とデッドボルト本体３８ａの略方形に合わせてあるが、デッドボルト本体３８ａが他の形状の場合には略これに合わせた形状とし、デッドボルト３８が左右に摺動可能とすればよい。
ロック板摺動面３９ｍの下方部分及び／又は外筒収納孔３９ｎの上方部分に図示する空隙部分を設けてあるがこれは材料節約と製造時の歪み防止のためのものであって必須の構成ではない。
【００１２】
前記したシリンダー錠では、内筒３３と外筒３２間に移動可能なピン群を介在させているが、前記ピン群に代えて公知の他のピン群や各種タンブラー群を用いたシリンダー錠とすることもできる。
又座板３０には通し孔３０ｃが穿設されこれにプラグ３３ｇ先端が摺動可能とされており内筒３３軸芯部の安定化のためには好ましいが、必須要素ではなく通し孔３０ｃ及びプラグ３３ｇは省略してもよい。
【００１３】
次に補助錠３の組立てについて説明する。
先ず外筒３２の嵌合孔３２ｃに後側より内筒３３の内筒本体３３ａを挿着して外筒３２の前端面３２ｄと内筒３３の軸芯部前端面３３ｃと面一として外筒３２及び内筒３３を組合わせ、各ピン孔３２ｆにボトムピン３２ｈ、ドライバー３２ｉ及びばね３２ｊの組を挿着し突出しないように各嵌合溝３２ｅの蟻溝に孔埋板３２ｋで押さえた状態でハウジング３９後側の外筒収納孔３９ｎに外筒３２を嵌着し、対称位置にあるキー溝３２ｇと対応するキー溝３９ｉとを合わせてキー３９ｐを後側より挿入して外筒３２をハウジング３９に対し不動状態に固着する。
次に、デッドボルト３８をラック３８ｇの歯先を下向きとし第一層を前側、第三層を後側にしてハウジング３９の受け溝３９ｄに左右に摺動可能に嵌着する。
次に、ハウジング３９内に収納されて後側より突出している内筒本体３３ａに歯車３４の軸芯部３４ｄを摺動可能に挿着し、同時に小突起３３ｆは大径の円弧面３４ｆに及び段部３３ｂは小径の円弧面３４ｇにそれぞれ回動可能とされ、歯車３４の歯３４ａはラック３８ｇの歯先と噛合い内筒３３の鍵３１による回動により歯車３４が回動しデッドボルト３８を左右に移動可能とされる。このとき内筒３３後端の段部３３ｂと切込み３３ｅとで形成された断面異形部の後部及びプラグ３３ｇは後方に突出状態とされている。
次に、カム３５の中抜き３５ｂを内筒３３の前記断面異形部に合わせて嵌着するが、このときカム本体３５ａ、内筒３３の断面異形部及び歯車３４の各後面は面一となり、プラグ３３ｇ及び小突起３５ｃが後方に突出状態とされている。
次に、ロック板３６の上向き凹溝３６ｃと下向き凹溝３６ｄとを組合わせて形成された開口部にカム３５のプラグ３３ｇの根元部及び小突起３５ｃを通し、ハウジング３９の縦溝３９ｊ及びロック板摺動面３９ｍにロック板３６を上下に摺動なように当て、ばね３７を基部３６ａの下端とハウジング３９の下側突片３９ｃとに先端腕部がそれぞれ当接するように配設して小突起３９ｈにコイル部を挿着して基部３６ａを上方に付勢する。このとき、ロック板３６のロック部３６ｂは上方位置にあってはロックボルト３８の切欠部３８ｅに遊嵌可能とされ、上向き凹溝３６ｃと下向き凹溝３６ｄとを組合わせた開口部からプラグ３３ｇの先端細径部が後方に突出状態とされている。
最後に、ハウジング３９の上下の突片３９ｅと左右の縦溝３９ｋで囲まれた空間に座板３０を蓋として嵌着し、座板３０の通し孔３０ｃにプラグ３３ｇの先端細径部を挿着し、上下の皿付き孔３０ｂに固着具３０ｄを挿着してハウジング３９の上下のねじ孔３９ｇに螺合して補助錠３の組立てを終了する。補助錠取付具１、２との組立てには後述する通り座板３０の後面略中央部に磁石１４を接着させて行う。
【００１４】
補助錠取付具１、２の組立てを図７、８について説明する。
図７に示す第一例の補助錠取付具１は、右勝手の面付けタイプの扉Ｙ及びスチール製枠Ｘ１に装着される例で、組立て完了した補助錠３の座板３０の後面に接着させた磁石１４を錠取付部１２の連結孔１２ｆに貫通し、前板１２ｂの後面から磁石１４を突出させ、皿付き孔１２ｄ、通し孔３０ａ及びねじ孔３９ｆに固着具１３を螺合して補助錠取付具１と補助錠３を固着する。次いで、枠Ｘ１に穿設されている正規錠前のラッチが出入りする縦長の略方形孔８１に枠固着部１１の固定片１１ｄを嵌着し、枠Ｘ１の扉Ｙと向合う右側面に左右方向材１１ｂが左右に沿い及び錠取付部１２の連結板１２ａが前後に沿って配設され、前板１２ｂの後面から突出している磁石１４を枠Ｘ１前側面に吸着させ補助錠取付具１及び補助錠３を枠Ｘ１への強固な取付けが完了する。
図８に示す第二例の補助錠取付具２は、埋込みタイプの扉Ｙ及びスチール製枠Ｘ２又はＸ３に装着され、（ａ）（ｂ）は左勝手、（ｃ）は右勝手の例で、組立て完了した補助錠３の座板３０の後面に接着させた磁石１４を錠取付部２２の連結孔２２ｆに貫通し、前板２２ｂの後面から磁石１４を突出させ、皿付き孔２２ｄ、通し孔３０ａ及びねじ孔３９ｆに固着具１３を螺合して補助錠取付具２と補助錠３を固着する。次いで正規錠前のラッチがストライク受け板８３に穿設された縦長の略方形孔８４から枠Ｘ２又はＸ３内に収納されたストライクに出入り可能とされている該略方形孔８４を通して枠固着部２１の固定片２１ｄを嵌着し、枠Ｘ２又はＸ３が扉Ｙの側端面と向合う左又は右側面に前後方向材２１ａが前後に沿って配設され、前板２２ｂの後面から突出している磁石１４を枠Ｘ２又はＸ３前側面に吸着させ補助錠取付具２及び補助錠３の枠Ｘ２又はＸ３への強固な取付けが完了する。
本発明の補助錠取付具１、２は、固定片１１ｄ又は２１ｄを略方形孔８１又は８４に嵌着し、磁石１４と枠Ｘ１、Ｘ２又はＸ３前側面との吸着というごく単純な調整のみで、正規錠前の近傍に容易に強固に取付けができる。
又本発明の補助錠３は、補助錠取付具１、２を介して枠Ｘ１、Ｘ２又はＸ３、及び扉Ｙに対応して装着することができ、前側より鍵孔３３ｄへの鍵３１の挿着によるシリンダー錠の開閉操作によってロックボルト３８を左右に移動させ戸当り７を介して扉Ｙの開閉いずれかの状態に保持可能である。
本発明の補助錠取付具１、２に取付けられる補助錠は、必ずしも補助錠３に限定されず、錠取付部１２又は２２に他形式の補助錠を固着して用いることもできる。
【００１５】
補助錠３の作動について、図９（Ａ）〜（Ｅ）の各図に対応して各構成部材毎に分けて順次説明するが、（Ａ）解錠状態から始まり矢印に従って変化し、（Ｅ）施錠状態で終了し本例は右勝手の場合である。図９は補助錠３から座板３０を取外して後部側より視た状態を示しているが、ここでの左右の表示は前記した通りシリンダー錠を鍵３１挿入による開閉操作を行う通常室外側を前とし、前から後に視て左右とし、又回動部分の角度は前から後に視て上端を０度、下端を１８０度とし、０度位置から時計回りＲの角度で表示して説明するので、図９の見掛上の左右とは入替わっている。
（Ａ）解錠状態
鍵３１：山部３１ｂが内筒３３の鍵孔３３ｄに出入れ可能な位置で本例では握り部３１ａが垂直の０度位置におかれる。
内筒３３：後端の切込み３３ｅは水平方向におかれ、小突起３３ｆは１８０度の位置におかれる。
カム３５：切込み３３ｅと同様中抜き３５ｂの平行面部分は水平方向におかれ小突起３５ｃは０度の位置におかれる。
歯車３４：歯３４ａは大部分左半分に、円弧面３４ｂは大部分右半分におかれる。
ロック板３６：上端位置にあり、ロック部３６ｂはデッドボルト３８の右側の切欠部３８ｅに嵌着され、傾斜隅部３６ｅ及び３８ｈが接している。
ばね３７：上側の先端腕部が伸び上端位置におかれている。
デッドボルト３８：最左端位置におかれ左側Ｐ方向のみで右側Ｑ方向には突出部分がないので、扉Ｙの開放を妨げることがない。
（Ｂ）ロック板解除
鍵３１：握り部３１ａを時計回りＲに１８０度回転し（Ａ）と逆向きとする。
内筒３３：握り部３１ａの回転に連動して１８０度回転し後端の切込み３３ｅは水平方向におかれ、小突起３３ｆは０度の位置におかれる。
カム３５：内筒３３の切込み３３ｅから中抜き３５ｂが連動し１８０度回転し平行面部分は水平方向におかれ、小突起３５ｃは１８０度の位置におかれる。
歯車３４：回転せず、（Ａ）と同じ位置にとどまっている。
ロック板３６：回転する小突起３５ｃが下向き凹溝３６ｄの位置に達したときロック板３６を押下げ下限位置に下降する。
ばね３７：下降するロック板３６の基部３６ａ下端によって先端腕部が下端位置に圧縮される。
デッドボルト３８：移動せず、（Ａ）と同じ位置にとどまっている。
（Ｃ）歯車・デッドボルト作動開始
鍵３１：握り部３１ａを時計回りＲに更に６０度回転し２４０度の位置におかれる。
内筒３３：握り部３１ａの回転に連動して更に６０度回転し後端の切込み３３ｅは傾斜方向におかれ、小突起３３ｆは６０度の位置におかれる。
カム３５：内筒３３の回転が切込み３３ｅから中抜き３５ｂが連動し平行面部分は傾斜方向におかれ、小突起３５ｃは２４０度の位置におかれる。
歯車３４：最初は停止しているが角度γが１２０度で余角が２４０度の例のとき内筒３３の回動により小突起３３ｆが円弧面３４ｆと円弧面３４ｇの境界３４ｈに達したとき歯車３４の駆動を開始せしめ、歯３４ａは右半分側に移り始め、円弧面３４ｂは左半分側に移り始める。
ロック板３６：小突起３５ｃが下向き凹溝３６ｄから上向き凹溝３６ｃの位置に達したときばね３７の上向き反発力によってロック板３６を押上げ僅かに上昇せしめるが、デッドボルト３８の右側Ｑ方向への駆動開始によって突出部３８ｆ下端にロック部３６ｂの上端が当接した中間位置におかれる。
ばね３７：ロック板３６の基部３６ａ下端に先端腕部が上向きの反発力を加える。
デッドボルト３８：歯車３４の回動によってラック３８ｇが僅かに駆動され右側Ｑ方向への突出を開始する。
【００１６】
（Ｄ）歯車・デッドボルト作動継続
鍵３１：握り部３１ａを反時計回りに更に９０度回転し３３０度の位置におかれる。
内筒３３：握り部３１ａの回転に連動して更に９０度回転し後端の切込み３３ｅは傾斜方向におかれ、小突起３３ｆは１５０度の位置におかれる。
カム３５：内筒３３の回転が切込み３３ｅから中抜き３５ｂが連動し平行面部分は傾斜方向におかれ、小突起３５ｃは３３０度の位置におかれる。
歯車３４：内筒３３の回動により小突起３３ｆが歯車３４を更に継続して回転せしめ、歯３４ａは更に右半分側に円弧面３４ｂは左半分側に移る。
ロック板３６：歯車３４の回転継続によりデッドボルト３８は更に右側Ｑ方向へ駆動されるが、突出部３８ｆ下端にロック部３６ｂの上端が当接した（Ｃ）の状態が継続する。
ばね３７：（Ｃ）と同じ状態にとどまっている。
デッドボルト３８：歯車３４の回転継続により更に右側Ｑ方向へ駆動される。
（Ｅ）歯車停止、ロック板固定、施錠状態
鍵３１：握り部３１ａを反時計回りに更に１０度回転し３６０（０）度の、（Ａ）と同じ位置におかれる。
内筒３３：握り部３１ａの回転に連動して更に１０度回転し後端の切込み３３ｅは水平方向におかれ、小突起３３ｆは１８０度の位置におかれる。
カム３５：内筒３３の回転に中抜き３５ｂが連動し平行面部分は水平方向におかれ、小突起３５ｃは３６０（０）度の、（Ａ）と同じ位置におかれる。
歯車３４：内筒３３の回動により小突起３３ｆが歯車３４を更に回転せしめ歯３４ａは大部分右半分に、円弧面３４ｂは大部分左半分で（Ａ）と左右対称の位置におかれる。
ロック板３６：歯車３４の回転継続によりロックボルト３８は更に右側Ｑ方向へ駆動され、ロック部３６ｂはばね３７の加圧によってデッドボルト３８の左側の切欠部３８ｅに嵌着され、傾斜隅部３６ｅ及び３８ｈが接している。
ばね３７：（Ａ）と同じく上側の先端腕部が上昇して上端位置におかれている。
ロックボルト３８：歯車３４の回転継続により最右端Ｑ方向位置におかれ左側Ｐ方向には突出部分がないので扉Ａの開放を完全に阻止する。この位置でロックボルト３８に左側Ｐ方向への破壊力が加わった場合には、突出部３８ｆからロック部３６ｂ及び基部３６ａから縦溝３９ｊへ大部分の力が作用し、シリンダー錠への衝撃は緩和される。
以上の補助錠３の解錠状態から施錠状態に至る作動を要約すると、下記の２つの作動を組合せたものとなる。
１）鍵３１回転→内筒３３回転の回転により切込み３３ｅ回転→カム３５回転により小突起３５ｃ回転→ロック板３６は上向き凹溝３６ｃと下向き凹溝３６ｄとで形成された開口部を通し上下に移動→ロック部３６ｂはばね３７の加圧によりデッドボルト３８の切欠部３８ｅと着脱する。
２）内筒３３の回転により小突起３３ｆ回転→小突起３３ｆは歯車３４の大径の円弧面３４ｆでは歯車３４を駆動せず移動、円弧面３４ｆ及び３４ｇの境界３４ｈに達したとき歯車３４を駆動開始→歯車３４の回転によりロックボルト３８を右側Ｑ方向へ駆動し解錠から施錠状態に変化する。
一方施錠状態から解錠状態に至る場合に又左勝手の場合には、上記の順序を逆にして変化する。
【００１７】
【発明の効果】
本発明は補助錠取付具は、簡易な構造で、多仕様の寸法の枠に柔軟に対応可能で、取付け位置が正規の錠前近傍であって、室内側への突出部分がなく強度や外観に優れている。又本発明の補助錠はデッドボルトの移動量を大きく確保でき、小型で耐ピッキング性に優れている。
【図面の簡単な説明】
【図１】本発明の右勝手の補助錠取付具の第一例及び補助錠を前側よりみた分解斜視図である。
【図２】図１の補助錠取付具の第一例及び補助錠を後側よりみた分解斜視図である。
【図３】本発明の右勝手の補助錠取付具の第二例を（ａ）前側及び（ｂ）後側よりみた分解斜視図である。
【図４】本発明の補助錠のロックボルトの一例で、（ａ）上下逆向き正面図、（ｂ）底面図、（ｃ）側面図である。
【図５】本発明の補助錠の歯車の一例で（ａ）正面図、（ｂ）Ａ・Ａ断面図、及びロック板の一例で（ｃ）上下逆向き正面図、（ｄ）側面図である。
【図６】従来例の右勝手の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。
【図７】（ａ）図１、２の補助錠を組立て右勝手の補助錠取付具の第一例との関係を示す斜視図である。（ｂ）（ａ）の補助錠取付具及び補助錠を枠に取付けた状態を示す概略平面図である。
【図８】（ａ）図１、２の補助錠を組立て左勝手の補助錠取付具の第二例との関係を示す斜視図である。（ｂ）（ａ）の補助錠取付具の第二例及び補助錠を枠に取付けた状態を示す概略平面図である。（ｂ）右勝手の補助錠取付具の第二例及び補助錠を枠に取付けた状態を示す概略平面図である。
【図９】図１、２、７、８の補助錠の作動を示し、（Ａ）解錠状態から（Ｅ）施錠状態までの各変化を示す概略裏面図である。
【符号の説明】
１、２ 補助錠取付具
３、６ 補助錠
１１、２１ 枠固着部
１１ａ、２１ａ 前後方向材
１１ｂ 左右方向材
１１ｃ、２１ｃ 開口部
１１ｄ、２１ｄ 固定片
１２、２２ 錠取付部
１２ａ 連結板
１２ｂ、２２ｂ 前板
１２ｃ、２２ｃ 折曲片
１２ｆ、２２ｆ 連結孔
１３、３０ｄ 固着具
１４ 磁石
３０ 座板
３０ａ、３０ｃ 通し孔
３１、６１ 鍵
３２ 外筒
３２ａ 外筒本体
３２ｃ 嵌合孔
３２ｅ 嵌合溝
３２ｆ ピン孔
３２ｇ、３９ｉ キー溝
３２ｈ ボトムピン
３２ｉ ドライバーピン
３２ｊ、３７ ばね
３２ｋ 孔埋板
３３ 内筒
３３ａ 内筒本体
３３ｂ 段部
３３ｄ 鍵孔
３３ｅ 切込み
３３ｆ、３５ｃ、３９ｈ 小突起
３３ｇ プラグ
３４ 歯車
３４ａ 歯
３４ｂ、３４ｆ、３４ｇ 円弧面
３４ｃ、３４ｅ 円周面
３４ｄ 軸芯部
３４ｈ 境界
３５ カム
３５ａ カム本体
３５ｂ 中抜き
３６ ロック板
３６ａ、３９ａ 基部
３６ｂ ロック部
３６ｃ、３６ｄ 凹溝
３６ｅ、３８ｈ 傾斜隅部
３８、６２ デッドボルト
３８ａ デッドボルト本体
３８ｂ 補強材
３８ｃ キャップ
３８ｅ 切欠部
３８ｆ 突出部
３８ｇ ラック
３９ ハウジング
３９ｃ 円形窓
３９ｄ 受け溝
３９ｅ 突片
３９ｊ、３９ｋ 縦溝
３９ｍ ロック板摺動面
３９ｎ 外筒収納孔
Ｘ１〜Ｘ３ 枠
Ｙ 扉[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an auxiliary lock fitting that is attached in addition to a lock used for a hinged door, and an improvement of the auxiliary lock used therefor.
[0002]
[Prior art]
There are many so-called picking that locks used for hinged doors such as entrance doors are destroyed by thieves, but as a countermeasure against this, auxiliary locks can be easily added in addition to regular locks. For example, there is a security lock shown in FIG. FIG. 6 shows the auxiliary lock fitting 5 and the auxiliary lock 6 in a frame X. 1 It is a schematic top view of the partial cross section which shows the state attached to. First, select the upper or lower position separated from the regular lock as the mounting position, and the steel frame X 1 The L-shaped metal fitting 55 having a groove at the indoor side corner is attached with double-sided tape, and the frame X 1 The left and right plane portions 51 and the front and rear plane portions 52 are formed in a substantially L-shaped cross-section, and the mounting bracket 5 formed by a sandwiched portion 53 having a substantially U-shaped cross-section is provided on the indoor side. The pair of upper and lower fixing screws 54 are screwed so as to be able to go in and out of the indoor side terminal of the sandwiching portion 53, and the tip is aligned with the groove of the L-shaped metal fitting 55 and screwed. The auxiliary lock 6 is mounted on the left and right flat portion 51, and the cylinder lock built in the housing 62 of the auxiliary lock 6 is locked and unlocked from the outdoor side with a key. Can be prevented from being released. Here, 7 is a door stop made of an elastic material adhered to the front surface of the end of the door Y.
[0003]
[Problems to be solved by the invention]
The conventional auxiliary lock mounting bracket 5 uses a sandwiching portion 53 having a substantially U-shaped cross section to adjust the frame X by adjusting the entrance and exit of the fixing screw 54. 1 It is easy to assemble because it is firmly attached to, but there is a limit on the amount of the fixing screw 54 that can be put in and out, and it is difficult to respond flexibly to a multi-spec frame. There is a restriction that the position must be shifted below, and there are problems in terms of selection and operation. Further, the fixing screw 54 protrudes to the indoor side, and there are problems in terms of strength and appearance. Furthermore, in order to secure the amount of left and right movement of the dead bolt 61 by locking and unlocking the cylinder lock of the auxiliary lock 6, the housing becomes large and the cylinder lock is applied by striking applied in the direction P from the end side of the dead bolt 61. Has a problem that it is easily destroyed. On the other hand, the present invention has a simple structure, can flexibly cope with multi-specification frames, has an attachment position in the vicinity of a regular lock, has no protruding part to the indoor side, and has excellent strength and appearance. Another object of the present invention is to obtain a small auxiliary lock that can secure the amount of left and right movement of the dead bolt used for this and has excellent picking resistance.
[0004]
[Means for Solving the Problems]
to this end,
In the invention of claim 1, a) a vertically long and substantially rectangular opening 21c is formed in the substantially central portion of the plate-like longitudinal member 21a placed in the vertical direction. A frame adhering portion 21 having a pair of tongue-shaped fixing pieces 21d projecting in the horizontal direction; b) a front plate 22b extending orthogonally from the front side surface of the front-rear direction member 21a to the one side; A lock mounting portion 22 formed in a substantially L shape with the front-rear member 21a and having a connecting hole 22f formed in the front plate 22b; and c) a substantially flat surface. Plate or block shape thicker than the front plate 22b And a magnet 14 that can be fitted into the connecting hole 22f. D) Each of the fixed pieces 21d can be fitted into a substantially square hole through which the regular lock front side enters and exits, and the magnet 14 has one surface fixed to the auxiliary lock side and the other surface protruded from the front plate 22b. Adsorbable to Solved by auxiliary lock fitting.
In the invention of claim 2, a) a plate-like longitudinal member 11a placed in the vertical direction and a lateral member 11b orthogonal to the front end one side of the longitudinal member 11a are formed in a substantially L shape. In addition, a longitudinally substantially rectangular opening 11c is formed in a substantially central portion of the front-rear direction member 11a, and has a pair of tongue-shaped fixing pieces 11d projecting in the horizontal direction on the one side from the upper and lower ends of the opening 11c. Frame adhering portion 11, b) a connecting plate 12a extending forward from the free end side surface of the left-right direction member 11b, and a front plate 12b extending orthogonally from the free end side surface of the connecting plate 12a to the one side. And a lock mounting portion 12 formed in a substantially L shape and having a connecting hole 12f formed in the front plate 12b, and c) the surface is substantially flat. Plate or block shape thicker than the front plate 12b A magnet 14 that can be fitted into the connecting hole 12f. D) Each of the fixed pieces 11d can be fitted into a substantially square hole into which the front side of the regular lock comes in and out, and the magnet 14 is fixed to one side of the auxiliary lock and the other side protrudes from the front plate 12b. Adsorbable to Solved by auxiliary lock fitting.
[0005]
In the invention of claim 3, a) an outer cylinder 32 having a fitting hole 32c drilled in the axial center portion of the outer cylinder main body 32a, and an inner cylinder main body slidable in the fitting hole 32c. A key hole 33d into which the key 31 can be inserted is formed from the front end surface of 33a, and a notch 33e is provided on the peripheral surface of the step portion 33b connected to the rear end side of the inner cylinder main body 33a. B) an inner cylinder 33 in which a deformed section is formed and a small projection 33f is provided on the stepped portion 33b; and b) the inner cylinder by a pin group or a tumbler group movable between the outer cylinder 32 and the inner cylinder 33. A cylinder lock that enables or disables rotation of the cylinder 33, and c) a hollow 35b that is drilled so that the deformed section of the inner cylinder 33 can be fitted into the axial center of the disc-shaped cam body 35a. A cam 35 having a cylindrical small projection 35c protruding from the rear surface of the cam body 35a; The center angle range of at least 90 degrees is formed by the teeth 34a and the remainder formed by the arcuate surface 34b of the teeth 34a, and the shaft core portion is slightly smaller than the same circumferential surface 34c as the blade bottom of the teeth 34a. A slidable circumferential surface 34e is formed, the front portion is a circumferential surface 34c whose outer periphery does not exceed the blade bottom of the tooth 34a, and the shaft core portion 34d is formed so that the inner cylinder main body 33a can be fitted thereto. At the boundary between the core portion 34d and the circumferential surface 34e, an opening is formed by combining an arcuate surface 34g capable of rotating the stepped portion 33b and an arcuate surface 34f capable of rotating the small projection 33f. And a gear-shaped gear 34, and a plate-like substantially square base 36a and a substantially square lock part 36b above the center part, are formed in a substantially convex shape, and extend upwardly across the base part 36a and the lock part 36b. An opening is formed by combining the groove 36c and the shallow bottom downward groove 36d. And a rack 38g that can mesh with the teeth 34a at the lower end of the middle part of the intermediate part. A pair of substantially square-shaped notches 38e to which the lock part 36b can be attached and detached from the lower end of the rear part, and a substantially square-shaped protruding part 38f in the middle lower part. A dead bolt 38 integrally formed with the third layer, h) a substantially square seat plate 30, and b) a front side having a base 39a and a circular window 39c in which the inner cylinder 33 can be operated at a substantially central portion. A pair of protrusions 39e that can be accommodated in the upper and lower portions of the seat plate 30 and the front plate 12b or 22b that are formed on the upper and lower ends, and on the rear side. The dead bolt 38 can slide horizontally in the horizontal direction. A receiving groove 39d having a flexible shape and an outer cylinder housing hole 39n into which the outer cylinder 32 can be fitted in a substantially central portion communicate with the circular window 39c, and a flat locking plate around the rear end of the outer cylinder housing hole 39n. And a housing 39 provided with a sliding surface 39m and vertical grooves 39j and 39k, and n) the outer cylinder 32 is fitted and fixed in the outer cylinder housing hole 39n, and the tooth tip of the rack 38g is directed downward. The shaft groove 34d is slidably inserted into the inner cylinder body 33a so that it can slide in the receiving groove 39d, and the small projection 33f is formed on the arc surface 34f and the step portion 33b is formed on the arc surface 34g. The teeth 34a mesh with the rack 38g, and the dead bolt 38 can be moved to the left and right by the rotation of the key 31 of the inner cylinder 33, and the hollow 35b is deformed in cross section of the inner cylinder 33. To fit the part, said The small protrusion 35c is passed through the opening formed by the grooves 36c and 36d, the lock plate 36 is slidably contacted with the lock plate sliding surface 39m and the vertical groove 39j, and the spring 37 is attached to the base portion. 36a and a lower projecting piece 39e, the lock plate 36 is urged upward, and the seat plate 30 is fitted into a space surrounded by the upper and lower projecting pieces 39e and the left and right vertical grooves 39k. The problem is solved by the auxiliary lock used for the auxiliary lock fitting according to claim 1 or 2, wherein the seat plate 30 is fixed to the housing 39 by 30d.
In the invention of claim 4, the upward concave groove 36c has an arc shape, the downward concave groove 36d has a trapezoidal shape, and the downward concave groove 36d does not protrude from the extended portion of the circular arc of the upward concave groove 36c. Preferably, the auxiliary lock according to claim 3 is shaped. In the invention of claim 5, a symmetric linear inclined corner portion 36 e is provided at the boundary between the base portion 36 a and the lock portion 36 b of the lock plate 36, and the inclined corner is provided at the left and right ends of the notch portion 38 e of the dead bolt 38. It is preferable that the auxiliary lock according to claim 3 or 4 has an inclined corner portion 38h aligned with the portion 36e.
In the invention of claim 6, a plug 33 g having a small distal end portion projects from the rear end surface axial core portion of the stepped portion 33 b of the inner cylinder main body 33 a, and the plug is located at a lower position in the left and right central portion of the seat plate 30. A through hole 30c in which the tip of 33g is slidable is formed, and the seat plate 30 is fixed to the housing 39 by inserting the tip of the plug 33g into the through hole 30c. It is preferable to use the auxiliary lock described above.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings.
1 and 2 are exploded perspective views of a first example of an auxiliary lock fitting of the present invention and an auxiliary lock as viewed from the front side and the rear side.
FIG. 3 is an exploded perspective view of the second example of the auxiliary lock fitting of the present invention as seen from the front side and the rear side.
FIG. 4 is an example of the lock bolt of the auxiliary lock of the present invention.
FIG. 5 is an example of the auxiliary lock gear of the present invention.
FIG. 6 is a schematic plan view showing a state in which a conventional auxiliary lock fitting and an auxiliary lock are attached to a frame.
FIG. 7: is a perspective view which shows the relationship with (a) the 1st example of an auxiliary lock fixture which assembled the auxiliary lock of FIG. (B) It is a schematic plan view which shows the state which attached the auxiliary | assistant lock fixture of (a) and the auxiliary | assistant lock to the frame.
FIG. 8 shows the relationship between the auxiliary lock shown in FIGS. 1 and 2 and the second example of the auxiliary lock fixture, and (a) is a perspective view of the left-handed auxiliary lock fixture and auxiliary lock. (B) It is a schematic plan view which shows the state which attached the auxiliary | assistant lock fixture of (a) and the auxiliary | assistant lock to the frame. (C) It is a schematic plan view which shows the state which attached the auxiliary lock attachment tool and auxiliary lock of the right hand to the frame.
FIG. 9 is a schematic back view showing the operation of the auxiliary lock of the present invention and showing each change from (A) the unlocked state to (E) the locked state.
In the following description, the outside of the normal room that performs the opening / closing operation by inserting the key in the lock is the front direction, the opposite side is the rear direction, the left direction, the right direction, and the up and down direction from the front. This will be described in the state of use. Here, the left and right directions can be interchanged in accordance with the convenience of use, and when they are put together, they are one side and the other, but will be described as the above left direction and right direction for convenience of explanation.
Similar components are denoted by the same reference numerals, and detailed description thereof is omitted.
[0007]
With respect to the auxiliary lock fitting and the auxiliary lock of the present invention, a first example of an auxiliary lock attachment 1 of a so-called imposition type in which a regular lock is attached to the outer surface of a door will be described with reference to FIGS. Next, a so-called embedded type auxiliary lock fitting 2 of a second example in which a regular lock is attached to the inner surface of the door will be described with reference to FIGS. The auxiliary lock 3 used in this manner will be described with reference to FIGS. The auxiliary lock mounting tool 1 of the first example includes a frame fixing part 11, a lock mounting part 12, a fixing tool 13, and a magnet 14. Further, a seat plate 30 and a fixing tool 30d, which will be described later, are used as a connecting member between the auxiliary lock mounting tool 1 and the auxiliary lock 3, and the configuration thereof will be described first for convenience of explanation. Here, the example of the right hand in FIGS. 1 and 2 will be described. In the example of the left hand, the left and right are reversed.
The frame fixing part 11 is made of metal, and is formed in a substantially L shape by a plate-like longitudinal member 11a placed in a vertical direction and a lateral member 11b orthogonal to the left side at the front end of the longitudinal member 11a. The material 11a has a pair of tongue-like fixed pieces 11d extending in the horizontal direction on the left and right direction material 11b side from the upper and lower ends of the opening 11c. have. Here, the opening 11c is a frame X shown in FIG. 1 The latch or deadbolt is sized so that the latch or deadbolt can enter and exit in the same manner as the vertically long substantially rectangular hole 81 through which the latch or deadbolt enters and exits, and the front and rear width of the fixed piece 11d is the front and rear of the opening 11c. It is taken slightly smaller than the width.
The lock mounting portion 12 is made of metal, and includes a connecting plate 12a extending rearward from the free end side surface of the left-right member 11b and a front plate 12b extending orthogonally to the left side from the free end side surface of the connecting plate 12a. The front plate 12b is formed in a substantially L shape, and a bent piece 12c for reinforcement and aesthetics is provided on the free end side surface of the front plate 12b in the rear direction. A magnet 14 (to be described later) is provided at a substantially central portion of the front plate 12b. In this example of the fitting shape, a vertically long substantially rectangular connecting hole 12f is formed, and a pair of countersunk holes 12d are formed in the upper and lower ends of the center portion of the front plate 12b. A plurality of ribs 12e for reinforcement are provided protruding at intervals above and below the end. Here, the drilling position of the connecting hole 12f is not necessarily limited to the substantially central portion of the front plate 12b, and may be any of the middle portion, and the bent piece 12c may be omitted.
The seat plate 30 has a shape that can be fitted to the rear side of the housing of the auxiliary lock 3 to be described later, for example, a substantially rectangular material having arcuate four corners, and is provided at the lower position of the left and right central portions of the rear cylinder inner end of the auxiliary lock to be described later. A through hole 30c in which the tip narrow diameter portion of the plug is slidable is formed, and a pair of screw holes on the upper and lower sides of the central portion of the rear side of the housing of the auxiliary lock 3 to be described later and a pair of screw holes on the upper and lower sides of the auxiliary lock 3 described later. A through hole 30a is formed, and a pair of countersunk holes 30b are formed on the left or right side of the through hole 13a at positions corresponding to the screw holes on the left or right upper and lower sides of the rear surface of the housing of the auxiliary lock 3 to be described later.
The magnet 14 is a permanent magnet, has a plate shape, has a thickness larger than the thickness of the front plate 12 b, one surface is bonded to the rear surface of the seat plate 30, and the other surface is formed in the front plate 12 b of the lock mounting portion 12. The auxiliary lock fitting 1 and the auxiliary lock 3 are firmly connected to each other by being fitted into the connecting hole 12f and protruding from the rear surface of the front plate 12b. 1 In order to stably secure the fixation with the front surface, it is preferable to adopt the vertically long substantially rectangular shape shown in this example within a range that can be accommodated in the housing so that the adsorption area can be as large as possible with a strong magnetic force. . Further, it may not necessarily be plate-like but may be block-like, and if it can be adsorbed, it may not be larger than the thickness of the front plate 12b, and at least the frame X 1 It is sufficient that the surface is substantially flat so that the adhesion can be stably obtained.
The fixing tool 13 is, for example, a headed machine screw that can be inserted into the screw hole 39f on the upper and lower sides of the rear center portion of the housing of the auxiliary lock 3 described later. The fixing tool 30d is, for example, a headed machine screw that can be inserted into a countersunk hole 30b and a screw hole 39g on the upper left or lower right side of the rear surface of the housing described later.
[0008]
The auxiliary lock mounting tool 2 of the second example has a frame fixing part 21, a lock mounting part 22, a fixing tool 13 and a magnet 14, and a seat plate 30 and a fixing tool 30 d are connected to connect the auxiliary lock 3. Used. Here, the seat plate 30, the fasteners 13 and 30d, and the magnet 14 are as described in the auxiliary lock fixture 1 of the first example, and detailed description thereof is omitted. What is described here is an example of the right hand in FIG. 3, and the left and right are reversed in the example of the left hand.
The frame fixing portion 21 is made of metal, and a vertically long and substantially rectangular opening portion 21c is formed in a substantially central portion of a plate-like longitudinal member 21a placed in a vertical direction, and the left horizontal direction extends from the upper and lower ends of the opening portion 21c. A pair of tongue-shaped fixing pieces 21d projecting from each other is provided. Here, the opening 21c is a frame X shown in FIG. 1 The length of the fixed piece 21d is slightly smaller than the front and rear width of the opening 21c, and is the same size as that of the vertically long rectangular hole 84. It has been.
The lock mounting portion 22 is made of metal and is formed in a substantially L shape by a front plate 22b extending perpendicularly to the left side from the front side surface of the front / rear direction member 21a and the front / rear direction member 21a. A bent piece 22c is provided in the rear, and a connecting hole 22f having a shape in which the magnet 14 can be fitted is formed in a substantially central portion in the upper and lower directions, and a pair of countersunk holes 22d are provided in the upper and lower portions of the central portion of the front plate 22b. A plurality of ribs 22e for reinforcement are protruded from the upper and lower ends of the front plate 22b as a preferable structure. Here, the bent piece 22 c and the connecting hole 22 f may be changed in the same manner as described in the lock mounting portion 12.
[0009]
Next, the auxiliary lock 3 used in any of the auxiliary lock fittings 1 and 2 includes a key 31, an outer cylinder 32, an inner cylinder 33, a gear 34, a cam 35, a lock plate 36, a spring 37, a dead bolt 38, and a housing 39. The outer cylinder 32 and the inner cylinder 33 constitute a known cylinder lock in combination with a pin group, a spring, and a hole filling plate, which will be described later. Furthermore, in order to connect with the auxiliary | assistant lock fixture 1 or 2, the seat plate 30 is used for the back end part of the auxiliary | assistant lock 3 also as a lid | cover.
The key 31 is a well-known one comprising a grip part 31a and a peak part 31b that protrudes from the grip part 31a into a shape corresponding to the entrance and exit of each pin group of a cylinder described later.
The outer cylinder 32 is provided with a fitting hole 32c into which the inner cylinder 33 can be fitted in the axial core portion of the substantially cylindrical outer cylinder main body 32a, and the front end surface 32d and the axial core front end surface 33c of the inner cylinder 33. Are arranged on the outer peripheral surface of the outer cylinder main body 32a in parallel with the axial center from the rear end surface 32b side, and are provided with a plurality of, for example, four rows of substantially U-shaped shallow dovetail-shaped fitting grooves 32e in plan view. Each fitting groove 32e is provided with a pin hole 32f having the same diameter that reaches the fitting hole 32c radially. For example, an arcuate key groove 32g is provided at two symmetrical positions on the outer peripheral surface of the outer cylinder main body 32a where there is no fitting groove 32e, and corresponds to a key groove 39i of the housing 39 to be described later. In addition, a pin group consisting of a known bottom pin 32h, a driver 32i and a spring 32j of a normal coil spring inserted into each pin hole 32f, and a dovetail groove of each fitting groove 32e from the pin hole 32f from the rear end face 32b side. And a hole-filled plate 32k that is press-fitted to prevent the pin group from popping out.
The inner cylinder 33 is a key hole 33d into which the peak 31b of the key 31 can be inserted from the shaft core front end face 33c side of the substantially cylindrical inner cylinder main body 33a fitted in the fitting hole 32c and slidable. Is formed, and a stepped portion 33b is continuously provided on the rear end side of the inner cylinder main body 33a. A parallel surface cut 33e is provided on the rear end peripheral surface of the stepped portion 33b, and the stepped portion 33b and the cutout 33e are deformed in cross section. A small cylindrical protrusion 33f projects outward on the circumferential surface of the step 33b immediately before the notch 33e, and the rear portion of the step 33b toward the rear axis surface from the deformed section. A stepped plug 33g having a small-diameter tip is protruded. Although not shown, the inner cylinder main body 33a is directed to the shaft core at a corresponding position communicating with each pin hole 32f in a fitted state with the fitting hole 32c. The shallow blind pin holes are formed radially. The small protrusion 33f has a tip that does not protrude from the outer peripheral surface of the inner cylinder main body 33a. Here, the plug 33g is not necessarily stepped but may be a columnar shape. However, it is preferable that the plug 33g is stepped for assembly with the seat plate 30. Further, the notch 33e does not necessarily have to be a parallel surface, and it is sufficient that a deformed section is formed, and the small protrusion 33f may have a deformed shape instead of a cylindrical shape.
[0010]
The gear 34 includes a tooth 34a whose rear portion is cut at a central angle range of at least 90 degrees on the outer periphery and a cutting edge arc surface 34b of the remaining tooth 34a, and the shaft core portion has the same circumference as the blade bottom of the tooth 34a. A circumferential surface 34e that is slightly smaller than the surface 34c and is slidable by a cam 35 described later is formed, and the front portion is a circumferential surface 34c whose outer periphery is the same as or not exceeding the blade bottom of the tooth 34a. The portion 34d is formed in a ring-shaped body having an inner diameter that allows the inner cylinder body 33a to be fitted, and a stepped portion 33b rotates at the middle portion that forms the boundary between the shaft core portion 34d and the circumferential surface 34e during assembly. An opening is formed by combining an arc surface 34g having a possible size and an arc surface 34f having a size capable of rotating the small protrusion 33f. Here, the radius of the arc surface 34g is made smaller than that of the arc surface 34f, and the gear 34 is rotated when the small projection 33f reaches one of the boundaries 34h of the arc surfaces 34f and 34g by the rotation of the inner cylinder 33. It is possible to move. In this example, the arc surface 34g between the boundaries 34h is taken at 120 degrees, for example, at a circumferential angle δ, and the gear cutting range of the teeth 34a is taken at 140 + 20 = 160 degrees, for example, at a circumferential angle β + γ. By adjusting the angle, it is possible to adjust the amount of left-right movement of the dead bolt 38 described later.
The cam 35 is a disc-shaped cam body 35a and a hollow 35b having a shape in which a deformed section formed by the step portion 33b and the notch 33e of the inner cylinder 33 can be fitted to the shaft core portion of the cam body 35a. Is formed, and a cylindrical small protrusion 35c is protruded toward the rear side between one central portion and the outer periphery of the surface corresponding to the notch 33e of the hollow 35b.
The lock plate 36 is formed in a substantially convex shape by a plate-like substantially square base portion 36a and a substantially rectangular lock portion 36b having a lateral width w × vertical height h that are provided continuously above the center portion of the base portion 36a. An opening formed by combining an arcuate upward concave groove 36c and a trapezoidal downward concave groove 36d straddling the upper portion 36a and the lock portion 36b is formed, and the base portion 36a and the lock portion 36b are formed. In order to prevent the thickness from being reduced by the opening at the boundary, a linearly inclined inclined corner portion 36e having an angle α is provided. The inclined corner portion 36e is for reinforcement and is not an essential element, and the base portion 36a and the lock portion 36b may be connected at a substantially right angle. Here, the downward concave groove 36d has a size that does not protrude from the arc extending portion of the upward concave groove 36c. In this example, the downwardly-grooving groove 36d is symmetrical with a linearly inclined portion having an angle α and a central straight horizontal portion. Although it is trapezoidal and this shape is preferable because a sudden lowering can be performed as the operation of the lock plate 36, which will be described later, the downward depression groove 36d is slightly curved but has a curved surface with a smaller curvature than the upward groove 36c. Also good. Here, the inclination angle α is, for example, 110 degrees.
The spring 37 is usually a torsion coil spring and has a tip arm portion vertically from the coil portion at the center, but an arcuate leaf spring or compression coil spring can also be used.
The dead bolt 38 includes a horizontally long, substantially rectangular block-shaped dead bolt main body 38a obtained by a metal that is easy to mold, such as zinc die cast, and a reinforcing material 38b of a hardened steel round bar, for example, as a preferable additional element for reinforcement against breakage. A cap 38c is provided. The deadbolt body 38a includes a first layer without a notch at the front part, a second layer in which a rack 38g that can mesh with the teeth 34a of the gear 34 is provided at the lower ends of the left and right central parts of the intermediate part, and the rear part A pair of left and right substantially rectangular cutouts 38e having a left and right width W x a vertical height H from which the lock portion 36b of the lock plate 36 having a horizontal width w × vertical height h can be attached and detached are spaced apart from each other. A third layer having a substantially square protruding portion 38f at the lower side of the middle and an inclined corner portion 38h having an angle α in alignment with the inclined corner portion 36e of the lock plate 36 at the left and right ends is integrally formed. Further, a cylindrical reinforcing member 38b and a blind hole 38d into which the cap 38c can be fitted are provided in the horizontal direction in the center, avoiding the rack 38g of the second layer, and the rack 38g stands with the tooth tip downward. Used in Here, the thickness before and after the second layer is usually larger than the thickness before and after the first layer and the third layer. The rack 38g can be used with the tooth tip facing upward rather than downward, but the tooth tip is preferably facing downward from the standpoint of preventing accumulation of dust and dirt. Here, the first layer to the third layer are integrally formed, but each may be formed separately and fixed by welding, screws, or the like. However, in mass production, it is cheaper to integrate them. Here, the dead bolt main body 38a does not necessarily have to be a substantially square shape, and may be a cylinder, a polygon, or a combination thereof, and may be a horizontally long block shape. When the inclined corner portion 36e is omitted, the inclined corner portion 38h is also omitted.
[0011]
The housing 39 accommodates the outer cylinder 32, the inner cylinder 33, the gear 34, the cam 35, the lock plate 36, the spring 37, the dead bolt 38, the seat plate 30, the magnet 14, the fasteners 13 and 30d of the auxiliary lock 3. Yes.
The front side of the housing 39 is formed by a substantially hull-shaped base portion 39a and a substantially cylindrical protruding portion 39b having a circular window 39c slightly smaller than the rear end surface 33c of the inner cylinder 33 at a substantially central portion on the front side of the base portion 39a. Yes.
The rear side of the housing 39 includes a seat plate 30 projecting from the upper and lower ends, a pair of curved projections 39e that can accommodate the upper and lower portions of the front plate 12b or 22b, and a horizontal direction upward from the central portion. A substantially U-shaped receiving groove 39d having a vertical width that allows the dead bolt 38 to slide to the left and right with the tooth tip of the rack 38g standing downward, and the outer cylinder 32 is fitted to the substantially central portion from the rear side. A pair of arcuate surfaces, for example, a pair of arcuate surfaces corresponding to the key grooves 32g of the outer cylinder 32 above and below the outer cylinder accommodating hole 39n, have a front end communicating with a small-diameter circular window 39c. In this example in which a key groove 39i in the shape of a key is engraved and the key grooves 32g and 39i are inserted together, a round bar-shaped key pair 39p is prepared. A flat lock plate sliding surface 39m is provided around the rear end of the outer cylinder housing hole 39n, and the base portion 36a of the lock plate 36 slides up and down along the left and right ends of the lock plate sliding surface 39m. A vertical groove 39j having a movable width and a front and rear thickness is provided, and an upper and lower vertical groove 39k having a width and a front and rear thickness capable of storing the seat plate 30 are continuously provided on the rear side of the vertical groove 39j. Further, a substantially cylindrical small protrusion 39h capable of inserting and supporting the central coil of the spring 37 is provided near one end of the lower end of the lock plate sliding surface 39m (left side as viewed from the front in FIG. 2), and the other of the small protrusions 39h. Inserted into the seat plate 30 at a position just above the lower protrusion 39e on the side (right side as viewed from the front in FIG. 2) and a position just below the upper protrusion 39e that is substantially symmetrical with respect to the axis of the outer cylinder housing hole 39n. A screw hole 39g into which the fixed fixture 30d can be screwed is provided, and the countersunk hole 12d of the front plate 12b and the through hole 30a of the seat plate 30 or the plate of the front plate 22b are located at the central position adjacent to each screw hole 39g. A screw hole 39f into which the fixing tool 13 inserted in the through hole 22d and the through hole 30a of the seat plate 30 can be screwed is provided. The rear end surfaces 391 of the upper and lower screw holes 39f and 39g are placed on the same upper and lower planes. When the seat plate 30 is finally fixed in the assembly of the auxiliary lock 3 to be described later, the lock plate 36 moves up and down and the lock bolt 38 moves left and right. Each of them is taken to a movable height.
Here, the shape of the receiving groove 39d is matched with the substantially U-shape and the substantially square shape of the dead bolt body 38a. However, when the dead bolt body 38a has another shape, the shape is substantially matched to the dead bolt body 38a. Can be slidable.
The gap portion shown in the figure is provided in the lower portion of the lock plate sliding surface 39m and / or the upper portion of the outer cylinder housing hole 39n, but this is for saving material and preventing distortion during manufacture. is not.
[0012]
In the above-described cylinder lock, a movable pin group is interposed between the inner cylinder 33 and the outer cylinder 32. Instead of the pin group, a cylinder lock using other known pin groups or various tumbler groups is used. You can also.
Further, a through hole 30c is formed in the seat plate 30, and the tip of the plug 33g is slidable. This is preferable for stabilizing the shaft core portion of the inner cylinder 33, but is not an essential element. The plug 33g may be omitted.
[0013]
Next, the assembly of the auxiliary lock 3 will be described.
First, the inner cylinder body 33a of the inner cylinder 33 is inserted into the fitting hole 32c of the outer cylinder 32 from the rear side, and the outer cylinder is flush with the front end surface 32d of the outer cylinder 32 and the axial front end surface 33c of the inner cylinder 33. 32 and the inner cylinder 33 are combined, and a pair of a bottom pin 32h, a driver 32i and a spring 32j is inserted into each pin hole 32f and pressed into a dovetail groove of each fitting groove 32e by a hole-filling plate 32k so as not to protrude. The outer cylinder 32 is fitted into the outer cylinder housing hole 39n on the rear side of the housing 39, the key groove 32g at the symmetrical position is aligned with the corresponding key groove 39i, and the key 39p is inserted from the rear side to insert the outer cylinder 32 into the housing. It is fixed to 39 in an immobile state.
Next, the dead bolt 38 is fitted to the receiving groove 39d of the housing 39 so as to be slidable to the left and right with the tooth tip of the rack 38g facing downward, the first layer being the front side and the third layer being the rear side.
Next, the shaft core portion 34d of the gear 34 is slidably inserted into the inner cylinder main body 33a housed in the housing 39 and protruding from the rear side, and at the same time, the small protrusion 33f extends to the large-diameter arc surface 34f. The stepped portion 33b is rotatable on a small circular arc surface 34g, and the teeth 34a of the gear 34 are engaged with the tooth tips of the rack 38g, and the gear 34 is rotated by the rotation of the key 31 of the inner cylinder 33. Can be moved left and right. At this time, the rear part of the deformed section formed by the step 33b and the notch 33e at the rear end of the inner cylinder 33 and the plug 33g are projected rearward.
Next, the hollow 35b of the cam 35 is fitted in accordance with the cross-sectional deformed portion of the inner cylinder 33. At this time, the cam main body 35a, the cross-sectional deformed portion of the inner cylinder 33 and the rear surfaces of the gear 34 are flush with each other. The plug 33g and the small protrusion 35c protrude rearward.
Next, the root portion of the plug 33g and the small protrusion 35c of the cam 35 are passed through the opening formed by combining the upward concave groove 36c and the downward concave groove 36d of the lock plate 36, and the vertical groove 39j of the housing 39 and the lock The lock plate 36 is applied to the plate sliding surface 39m so as to slide up and down, and the spring 37 is disposed so that the tip arm portion comes into contact with the lower end of the base portion 36a and the lower protruding piece 39c of the housing 39. The coil portion is inserted into the small protrusion 39h to bias the base portion 36a upward. At this time, the lock portion 36b of the lock plate 36 can be loosely fitted into the cutout portion 38e of the lock bolt 38 at the upper position, and the plug 33g is opened from the opening portion combining the upward concave groove 36c and the downward concave groove 36d. The tip narrow diameter portion protrudes backward.
Finally, the seat plate 30 is fitted as a lid in the space surrounded by the upper and lower protrusions 39e and the left and right vertical grooves 39k of the housing 39, and the tip small diameter portion of the plug 33g is inserted into the through hole 30c of the seat plate 30. Then, the fixing tool 30d is inserted into the upper and lower countersunk holes 30b and screwed into the upper and lower screw holes 39g of the housing 39, and the assembly of the auxiliary lock 3 is completed. Assembling with the auxiliary lock fittings 1 and 2 is performed by adhering the magnet 14 to the substantially central portion of the rear surface of the seat plate 30 as described later.
[0014]
The assembly of the auxiliary lock fittings 1 and 2 will be described with reference to FIGS.
The auxiliary lock fixture 1 of the first example shown in FIG. 7 is a right-handed imposition type door Y and steel frame X. 1 In the example, the magnet 14 adhered to the rear surface of the seat plate 30 of the auxiliary lock 3 that has been assembled is passed through the connecting hole 12f of the lock mounting portion 12, and the magnet 14 is projected from the rear surface of the front plate 12b. The auxiliary lock fitting 1 and the auxiliary lock 3 are fixed by screwing the fixing tool 13 into the hole 12d with a dish, the through hole 30a, and the screw hole 39f. Then frame X 1 A fixing piece 11d of the frame fixing portion 11 is fitted into a vertically long, substantially rectangular hole 81 through which a latch of a regular lock that is perforated enters and exits. 1 The left and right direction members 11b are arranged along the right and left sides and the connecting plate 12a of the lock mounting portion 12 along the front and rear sides on the right side facing the door Y, and the magnet 14 protruding from the rear surface of the front plate 12b is attached to the frame X. 1 Adsorb to the front side and attach the auxiliary lock fitting 1 and auxiliary lock 3 to the frame X 1 The firm installation to the is completed.
The auxiliary lock fitting 2 of the second example shown in FIG. 8 includes an embedded type door Y and a steel frame X. 2 Or X 3 (A) and (b) are left-handed examples, and (c) is a right-handed example. The magnet 14 bonded to the rear surface of the seat plate 30 of the assembled auxiliary lock 3 is connected to the connecting hole of the lock mounting portion 22. The magnet 14 is protruded from the rear surface of the front plate 22b, and the fixing tool 13 is screwed into the countersunk hole 22d, the through hole 30a, and the screw hole 39f to fix the auxiliary lock mounting tool 2 and the auxiliary lock 3 together. . Next, the latch before the regular lock is moved from the vertically long rectangular hole 84 formed in the strike receiving plate 83 to the frame X. 2 Or X 3 The fixing piece 21d of the frame fixing portion 21 is fitted through the substantially square hole 84 that can enter and exit the strike stored in the frame, and the frame X 2 Or X 3 Is provided on the left or right side facing the side end surface of the door Y along the front-rear direction member 21a, and the magnet 14 protruding from the rear surface of the front plate 22b is attached to the frame X. 2 Or X 3 Adsorbed to the front side and auxiliary lock fitting 2 and auxiliary lock 3 frame X 2 Or X 3 The firm installation to the is completed.
In the auxiliary lock fittings 1 and 2 of the present invention, the fixing piece 11d or 21d is fitted into the substantially square hole 81 or 84, and the magnet 14 and the frame X are fitted. 1 , X 2 Or X 3 It can be easily and firmly attached in the vicinity of the regular lock with only a simple adjustment of adsorption to the front side.
Further, the auxiliary lock 3 of the present invention has a frame X via the auxiliary lock fittings 1 and 2. 1 , X 2 Or X 3 , And the door Y, and the lock bolt 38 is moved to the left and right by opening and closing the cylinder lock by inserting the key 31 into the key hole 33d from the front side. It can be held in either open or closed state.
The auxiliary locks attached to the auxiliary lock attachments 1 and 2 of the present invention are not necessarily limited to the auxiliary lock 3, and other types of auxiliary locks can be secured to the lock attachment portion 12 or 22.
[0015]
The operation of the auxiliary lock 3 will be described separately for each component corresponding to each of FIGS. 9A to 9E, but (A) starts from the unlocked state and changes according to the arrow, (E ) Finished in the locked state, this example is the case of the right hand. FIG. 9 shows a state in which the seat plate 30 is removed from the auxiliary lock 3 and viewed from the rear side, but the left and right displays here indicate the normal outdoor side where the cylinder lock is opened and closed by inserting the key 31 as described above. The front and rear views are left and right, and the angle of the rotating part is viewed from the front and back, with the upper end being 0 degrees and the lower end being 180 degrees. The apparent left and right in FIG. 9 are interchanged.
(A) Unlocked state
Key 31: In this example, the grip portion 31a is placed at a vertical 0 degree position where the peak portion 31b can be put in and out of the key hole 33d of the inner cylinder 33.
Inner cylinder 33: The notch 33e at the rear end is placed in the horizontal direction, and the small protrusion 33f is placed at a position of 180 degrees.
Cam 35: Similar to the notch 33e, the parallel surface portion of the hollow 35b is placed in the horizontal direction, and the small protrusion 35c is positioned at 0 degrees.
Gear 34: The teeth 34a are mostly placed in the left half and the arcuate surface 34b is mostly placed in the right half.
Lock plate 36: Located at the upper end position, the lock portion 36b is fitted into the cutout portion 38e on the right side of the dead bolt 38, and the inclined corner portions 36e and 38h are in contact with each other.
Spring 37: The upper end arm portion is extended and placed at the upper end position.
Dead bolt 38: Since it is placed at the leftmost position only in the left P direction and there is no protruding portion in the right Q direction, it does not prevent the door Y from being opened.
(B) Lock plate release
Key 31: The grip portion 31a is rotated 180 degrees clockwise R, and is in the opposite direction to (A).
Inner cylinder 33: Rotating 180 degrees in conjunction with the rotation of the grip 31a, the notch 33e at the rear end is placed in the horizontal direction, and the small protrusion 33f is placed at the 0 degree position.
Cam 35: The hollow 35b from the cut 33e of the inner cylinder 33 is rotated by 180 degrees, the parallel surface portion is placed in the horizontal direction, and the small protrusion 35c is placed at a position of 180 degrees.
Gear 34: It does not rotate and remains at the same position as (A).
Lock plate 36: When the rotating small protrusion 35c reaches the position of the downward concave groove 36d, the lock plate 36 is lowered to the lower limit position for pressing.
Spring 37: The tip arm portion is compressed to the lower end position by the lower end of the base portion 36a of the lowering lock plate 36.
Deadbolt 38: It does not move and remains at the same position as (A).
(C) Gear / dead bolt operation start
Key 31: The grip 31a is further rotated 60 degrees clockwise R and placed at a position of 240 degrees.
Inner cylinder 33: In conjunction with the rotation of the grip portion 31a, the inner cylinder 33 is further rotated by 60 degrees, the notch 33e at the rear end is placed in an inclined direction, and the small protrusion 33f is placed at a position of 60 degrees.
Cam 35: The rotation of the inner cylinder 33 is linked from the notch 33e to the hollow 35b so that the parallel surface portion is inclined and the small protrusion 35c is positioned at 240 degrees.
Gear 34: Stopping at first, but when the angle γ is 120 degrees and the remainder angle is 240 degrees, when the small projection 33f reaches the boundary 34h between the arc surface 34f and the arc surface 34g by the rotation of the inner cylinder 33 The driving of the gear 34 is started, the tooth 34a starts to move to the right half side, and the circular arc surface 34b starts to move to the left half side.
Lock plate 36: When the small projection 35c reaches the position of the upward concave groove 36c from the downward concave groove 36d, the upward repulsive force of the spring 37 pushes the lock plate 36 up slightly, but in the right Q direction of the dead bolt 38 As a result of the start of driving, the upper end of the lock portion 36b comes into contact with the lower end of the protruding portion 38f.
Spring 37: The tip arm portion applies an upward repulsive force to the lower end of the base portion 36a of the lock plate 36.
Dead bolt 38: The rack 38g is slightly driven by the rotation of the gear 34 and starts to protrude in the right Q direction.
[0016]
(D) Continue gear and dead bolt operation
Key 31: The grip 31a is further rotated 90 degrees counterclockwise and placed at a position of 330 degrees.
Inner cylinder 33: Further rotated 90 degrees in conjunction with the rotation of the grip portion 31a, the notch 33e at the rear end is placed in an inclined direction, and the small protrusion 33f is placed at a position of 150 degrees.
Cam 35: The rotation of the inner cylinder 33 is linked from the notch 33e to the hollow 35b so that the parallel surface portion is inclined and the small protrusion 35c is positioned at 330 degrees.
Gear 34: The small protrusion 33f continues to rotate the gear 34 by the rotation of the inner cylinder 33, and the tooth 34a further moves to the right half side and the arc surface 34b moves to the left half side.
Lock plate 36: Dead bolt 38 is further driven in the right Q direction by continuing rotation of gear 34, but the state of (C) in which the upper end of lock portion 36b is in contact with the lower end of protrusion 38f continues.
Spring 37: stays in the same state as (C).
Dead bolt 38: Driven further in the right Q direction as the gear 34 continues to rotate.
(E) Gear stopped, lock plate fixed, locked state
Key 31: The grip 31a is further rotated counterclockwise by 10 degrees and placed at the same position as (A) of 360 (0) degrees.
Inner cylinder 33: Further rotated by 10 degrees in conjunction with the rotation of the grip portion 31a, the notch 33e at the rear end is placed in the horizontal direction, and the small protrusion 33f is placed at a position of 180 degrees.
Cam 35: The hollow 35b is interlocked with the rotation of the inner cylinder 33, the parallel surface portion is placed in the horizontal direction, and the small protrusion 35c is placed at the same position as (A) of 360 (0) degrees.
Gear 34: The rotation of the inner cylinder 33 causes the small projection 33f to further rotate the gear 34 so that the tooth 34a is mostly in the right half and the arcuate surface 34b is mostly in the left half and is symmetrical with respect to (A).
Lock plate 36: The lock bolt 38 is further driven in the right Q direction by continuing the rotation of the gear 34, and the lock portion 36b is fitted into the left notch 38e of the dead bolt 38 by the pressure of the spring 37, and the inclined corner portion 36e. And 38h are in contact.
Spring 37: Similar to (A), the upper end arm portion is raised to the upper end position.
Lock bolt 38: As the gear 34 continues to rotate, it is placed in the position of the rightmost end Q direction and there is no protruding part in the left P direction, so that the door A is completely prevented from opening. When a destructive force in the left P direction is applied to the lock bolt 38 at this position, most of the force acts from the protruding portion 38f to the lock portion 36b and from the base portion 36a to the longitudinal groove 39j, and the impact on the cylinder lock is reduced. Alleviated.
To summarize the operation of the auxiliary lock 3 from the unlocked state to the locked state, the following two operations are combined.
1) Key 31 rotation → Inner cylinder 33 rotation to cut 33e rotation → Cam 35 rotation to rotate small projection 35c → Lock plate 36 passes up and down through an opening formed by upward groove 36c and downward groove 36d. The movement → lock part 36 b is attached to and detached from the notch part 38 e of the dead bolt 38 by the pressure of the spring 37.
2) Rotation of the small projection 33f by rotation of the inner cylinder 33 → the small projection 33f moves without driving the gear 34 on the large-diameter arc surface 34f of the gear 34, and the gear 34 is moved when the boundary 34h between the arc surfaces 34f and 34g is reached. Driving start → Rotation of the gear 34 drives the lock bolt 38 in the right Q direction to change from unlocked to locked.
On the other hand, in the case of going from the locked state to the unlocked state or in the case of the left hand, the order is changed in the reverse order.
[0017]
【The invention's effect】
In the present invention, the auxiliary lock fitting has a simple structure and can flexibly accommodate a frame of various specifications, the mounting position is in the vicinity of a regular lock, and there is no protruding part to the indoor side, so that the strength and appearance can be improved. Are better. Further, the auxiliary lock of the present invention can ensure a large amount of movement of the dead bolt, is small and has excellent picking resistance.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first example of a right-handed auxiliary lock fitting of the present invention and an auxiliary lock as viewed from the front side.
FIG. 2 is an exploded perspective view of the first example of the auxiliary lock fitting of FIG. 1 and the auxiliary lock as viewed from the rear side.
FIG. 3 is an exploded perspective view of a second example of the right-handed auxiliary lock fitting of the present invention as viewed from (a) the front side and (b) the rear side.
FIG. 4 is an example of the lock bolt of the auxiliary lock of the present invention, (a) a front view upside down, (b) a bottom view, and (c) a side view.
5A is a front view of an auxiliary lock gear according to the present invention, FIG. 5B is a cross-sectional view taken along line A / A, and FIG. 5C is a front view of an upside down direction, and FIG. is there.
FIG. 6 is a schematic plan view showing a state in which a right-handed auxiliary lock fitting and an auxiliary lock of a conventional example are attached to a frame.
7A is a perspective view showing a relationship with a first example of a right-handed auxiliary lock fitting in which the auxiliary locks of FIGS. 1 and 2 are assembled. FIG. (B) It is a schematic plan view which shows the state which attached the auxiliary | assistant lock fixture of (a) and the auxiliary | assistant lock to the frame.
FIG. 8A is a perspective view showing a relationship with a second example of a left-handed auxiliary lock fitting in which the auxiliary locks of FIGS. 1 and 2 are assembled. (B) It is a schematic plan view which shows the state which attached the 2nd example of the auxiliary | assistant lock fixture of (a), and the auxiliary | assistant lock to the frame. (B) It is a schematic plan view which shows the state which attached the 2nd example of the auxiliary lock attachment tool of right hand, and the auxiliary lock to the frame.
FIG. 9 is a schematic back view showing the operation of the auxiliary lock of FIGS. 1, 2, 7 and 8 and showing each change from (A) the unlocked state to (E) the locked state.
[Explanation of symbols]
1, 2 Auxiliary lock fitting
3, 6 Auxiliary lock
11, 21 Frame fixing part
11a, 21a Longitudinal material
11b Left-right direction material
11c, 21c opening
11d, 21d fixed piece
12, 22 Lock mounting part
12a Connecting plate
12b, 22b Front plate
12c, 22c bent piece
12f, 22f connecting hole
13, 30d Fastening tool
14 Magnet
30 seat plate
30a, 30c through hole
31, 61 keys
32 outer cylinder
32a outer cylinder body
32c fitting hole
32e Mating groove
32f pin hole
32g, 39i keyway
32h Bottom pin
32i driver pin
32j, 37 spring
32k hole filling plate
33 inner cylinder
33a Inner cylinder body
33b Step
33d keyhole
33e cutting
33f, 35c, 39h Small protrusion
33g plug
34 Gear
34a Teeth
34b, 34f, 34g Circular arc surface
34c, 34e Circumference surface
34d Shaft core
34h boundary
35 cams
35a Cam body
35b hollow
36 Lock plate
36a, 39a Base
36b Lock part
36c, 36d groove
36e, 38h Inclined corner
38, 62 Deadbolt
38a deadbolt body
38b reinforcement
38c cap
38e Notch
38f protrusion
38g rack
39 Housing
39c round window
39d receiving groove
39e
39j, 39k longitudinal groove
39m Lock plate sliding surface
39n Outer tube storage hole
X 1 ~ X 3 frame
Y door