JP3632708B2 - Fixing structure between lock handle and cylinder lock - Google Patents

Description

【０００１】
【産業上の利用分野】
本願発明は自動販売機やコインロッカーの開閉扉に装着される錠前の錠把手とシリンダー錠との固定構造に関する。
【０００２】
【従来の技術】
従来、自動販売機やコインロッカーの開閉扉に装着される錠前は、基本的には開閉扉に固定される錠前のハンドルケースと、このハンドルケース内に直接又は間接的に嵌合する錠把手と、この錠把手の筒状部に取り外し可能に嵌合するシリンダー錠とから構成され、泥棒に対する盗難防止対策として、錠前の錠把手とシリンダー錠との固定構造が工夫されている。
【０００３】
この固定構造で問題にすべき点は、泥棒が工具を利用して錠把手からシリンダー錠を引き抜こうとしても、容易にシリンダー錠が抜けないことであり、またシリンダー錠のキー穴に細い長板片を差し込み、シリンダー錠を周方向に回そうとしても回転しないことである。
【０００４】
そこで、これらの問題点を解消するために、錠把手の筒状部の前部に形成された半径方向の貫通孔に抜脱防止片としてのコ字型係合具を差し込み、このコ字型係合具を固着具を介して錠把手の筒状部に固定する。
【０００５】
この場合コ字型係合具の係止脚部にシリンダー錠の外壁に形成された係止溝と係合するネジ状係止部を形成している。
【０００６】
しかしながら、上記構成においては、前者の問題点を一応解決することができるとはいうものの、後者の問題点を十分に解決することができない。
【０００７】
【発明が解決しようとする課題】
本願発明は以上のような従来の欠点に鑑み、固定構造で問題にすべき２点、すなわち、シリンダー錠が錠把手から容易に抜けないと同時に、錠把手内で周方向に回転しない錠前の錠把手とシリンダー錠との固定構造を得ることである。そこで、本願発明の第１の目的は、シリンダー錠のネジ部に一体的に螺着する抜脱防止片変形防止具又は筒状抜脱防止具と錠把手の筒状部に固定される抜脱防止片とが相俟ってシリンダー錠が錠把手から容易に抜けないことであり、また第２の目的は、シリンダー錠を周方向に力一杯回そうとしても、前記抜脱防止片が容易に変形しないことである。
【０００８】
【課題を解決するための手段】
本願発明の錠前の錠把手とシリンダー錠との固定構造は、開閉扉に固定される錠前のハンドルケース１と、ハンドルケース１に内装されかつバネ１３でハンドルケース１の外方向に常時付勢された錠把手１０と、この錠把手の筒状部１２に取り外し可能に嵌合するシリンダー錠２５と、このシリンダー錠のオネジ２８に螺合するメネジ３２を有する筒状の装着部３３と該装着部３３の一方の周端部から延設する抜脱防止片用当接アーム３４とを有する筒状の抜脱防止片変形防止具３０と、Ｌ字型又はコ字型に形成されといると共に、錠把手１０の嵌合支持部２０の外壁面２０ａと面接触の状態で当接する係止部４２と該係止部４２から直交方向に延設すると共に前記シリンダー錠２５のフラット面と前記当接アームの面状内壁面３６との間に生ずる間隙３５に前記内壁面に線ないし面接触の状態で支持されるように錠把手の筒状部１２の貫通孔１８を介して差し込まれる脚部４１とをと有する抜脱防止片４０と、該抜脱防止片４０を前記筒状部１２に固定する固着具４３とを備えることを特徴とする。
【０００９】
また本願発明の錠前の錠把手とシリンダー錠との固定構造は、開閉扉に固定される錠前のハンドルケース１と、ハンドルケース１に内装されかつバネ１３でハンドルケース１の外方向に常時付勢された錠把手１０と、この錠把手の筒状部１２に取り外し可能に嵌合するシリンダー錠２５Ａと、このシリンダー錠のオネジ２８Ａに螺着された筒状の抜脱防止具３０Ａと、Ｌ字型又はコ字型に形成されといると共に、錠把手１０の嵌合支持部２０の外壁面２０ａと面接触の状態で当接する係止部４２と該係止部４２から直交方向に延設すると共に前記シリンダー錠２５Ａのフラット面２７Ａとシリンダー錠２５Ａの環状部５０に延設された当接変形防止アーム５１の面状内壁面３６Ａとの間に生ずる間隙３５Ａに前記内壁面に線ないし面接触の状態で支持されるように錠把手の筒状部１２の貫通孔１８を介して差し込まれる脚部４１とをと有する抜脱防止片４０Ａと、該抜脱防止片４０Ａを前記筒状部１２に固定する固着具４３とを備えることを特徴とする。
【００１０】
【作用】
シリンダー錠が錠把手に組み込まれ、抜脱防止片が固着具を介してシリンダー錠の筒状部に固定されている場合に於いて、例えば泥棒がシリンダー錠のキー孔に細い長板片を差し込み、力の有る限り周方向に回転しようとした時、シリンダー錠側から抜脱防止片の脚部及び当接変形防止アームの両方に強力な力が加わる。
【００１１】
しかしながら、所要間隙に差し込まれた抜脱防止片の脚部の外壁面と当接変形防止アームの内壁面とは密接状態な関係にあるので、抜脱防止片の脚部は変形しようにも変形することができない。
【００１２】
【実施例】
以下、図面に示す実施例により本願発明を詳細に説明する。図１ないし図７は第１実施例である。１は自動販売機、コインロッカーなどの開閉扉に固定される錠前のハンドルケースで、このハンドルケース１は鍔状に形成された嵌合部２と、嵌合部に連設する円筒状部３とから成る。ハンドルケース１の嵌合部は正面側から見るとＴ字型、Ｏ字型等任意の形状に形成され、また前記円筒状部３の後壁には貫通孔４が形成されている。
【００１３】
５はハンドルケース１の円筒状部３に回動可能に内装されるガイド筒である。このガイド筒５の上下部には軸芯方向にガイド切欠部６が形成され、また開口側の周壁部の適宜部位には矩形状の係合切欠部７が形成され、さらに後部側の有壁には前記貫通孔４を貫通する係合ボルト８が一体的に設けられている。係合ボルト８には図示しない長板状の係合板がナツト９等の固定具を介して取り付けられ、例えば自動販売機本体側の係合部と間接的に係合する。
【００１４】
１０はハンドルケース１内にガイド筒５を介して摺動可能に嵌合する錠把手で、この錠把手１０はハンドルケース１の嵌合部２に嵌合するややＴ字型状の把手部１１と、この把手部１１に連設する筒状部１２とから成る。錠把手１０もハンドルケース１の嵌合部２の断面形状に対応して任意の断面形状に形成される。
【００１５】
１３は錠把手１０の筒状部１２の後端外側面とガイド筒５の後壁内面との間に介在するバネで、このバネ１３により錠把手１０はハンドルケース１の外方向に常時付勢されている。なお、特に図示しないが、錠把手の後方部には駆動カムが回動可能に内装され、この駆動カムにはロック片が係合している。
【００１６】
１８は錠把手１０の筒状部１２の前部に所要間隔を有して形成された抜脱防止片用貫通孔である。この抜脱防止片用貫通孔１８は小さな四角形状で、筒状部１２の半径方向に合計２個づつ対設して形成されている。
【００１７】
１９は前記抜脱防止片用貫通孔１８の前後に位置するように筒状部１２の前部外壁に突出形成され、かつ、ガイド筒５の係合切欠部７に係合あるいは嵌合する突起部である。この突起部１９はガイド筒５の係合切欠部７との係合関係を十分に考慮し、筒状部１２の軸芯方向に幅広に形成するのが望ましい。
【００１８】
２０は錠把手１０の筒状部１２の前記突起部１９に形成された抜脱防止片用嵌合支持部で、この嵌合支持部２０は突起部１９よりも肉厚が薄く、その中央部には貫通孔、本実施例では固着具用メネジ孔２１が形成されている。なお、嵌合支持部２０の外壁面はフラット状である。
【００１９】
２２は錠把手１０の筒状部１２の内壁に突出形成され、かつ、後述する抜脱防止片変形防止具の被係合部と係合する突条或いは長溝状の係合部である。この係合部２２は、本実施例では筒状部１２の軸芯方向に形成された複数本（合計４個）の突条である。
【００２０】
２５は錠把手１０に取り外し可能に嵌合するシリンダー錠で、このシリンダー錠２５にはキー２６が差し込まれる。シリンダー錠２５の外周壁には、図２で示すように上下にフラット面２７、２７が形成され、またフラット面２７、２７を除いたその他の部分にはオネジ２８が形成されている。そして、シリンダー錠２５にはキー２６の操作で回動し、かつ、駆動カムの嵌合孔と嵌合する駆動軸２９が設けられている。
【００２１】
３０はシリンダー錠２５の外周壁に装着される抜脱防止片変形防止具である。この抜脱防止片変形防止具３０は、本実施例ではシリンダー錠２５に螺着されている。
【００２２】
ところで、抜脱防止片変形防止具３０は、図２乃至図７で示すように、外周壁に前述した錠把手１０の突条係合部２２と係合する長溝状の被係合部３１を有し、一方、内周壁の適宜箇所に前述したシリンダー錠２５のオネジ２８と螺合するメネジ３２を有する筒状の装着部３３と、この装着部３３の一方の周端部から軸芯方向に延設する抜脱防止片用当接アーム３４とから成る。
【００２３】
そして、前記抜脱防止片用当接アーム３４は、本実施例では合計４本設けられており、シリンダー錠２５のフラット面２７、２７とそれぞれ所要間隙３５、３５を有して対向する２本の当接変形防止アーム３４ａ、３４ａは、他の２本の当接ガイドアーム３４ｂ、３４ｂとは多少相違している。
【００２４】
すなわち、図２で示すようにフラット面２７、２７とそれぞれ対設する一対の当接変形防止アーム３４ａ、３４ａは、これらの当接変形防止アーム３４ａ、３４ａとは直交方向に対設する一対の当接ガイドアーム３４ｂ、３４ｂよりも肉厚に形成され、かつ、それらの内壁面３６、３６はフラット面２７、２７と同様に面状に形成されている。なお、前記当接変形防止アーム３４ａ、３４ａは、本実施例では上下に対設しているが、必ずしも対設する必要がなく、当接変形防止アーム３４ａを１本のみ設けても良い。
【００２５】
４０は錠把手１０の筒状部１２の抜脱防止片用貫通孔１８及びシリンダー錠２５のフラット面２７と当接変形防止アーム３４ａの内壁面３６との間に生ずる所要間隙３５に脚部４１が差し込まれるＬ字型又はコ字型の抜脱防止片である。この抜脱防止片４０は、本実施例では図２又は図６で示すようにコ字型状に形成され、錠把手１０の嵌合支持部２０の外壁面２０ａと面接触の状態で当接する係止部４２と、この係止部４２から直交方向に延設する前記一対の脚部４１、４１とから成る。そして、前記係止部４２の中央部には固着具４３用係止貫通孔４４が形成されている。固着具用の係止貫通孔４４は前述した固着具用メネジ孔２１と符合する。また抜脱防止片４０は、その脚部４１がストッパー機能を有するように前記抜脱防止片変形防止具３０と交差した状態で抜脱防止片変形防止具３０の装着部３３の周端面と当接する。なお、抜脱防止片４０の脚部４１は、設計上容易に変形しないように肉厚にするのが望ましい。
【００２６】
上記構成に於いては、まずキー２６を解錠方向に回転し、錠把手１０がバネ１３のバネ力によりガイド切欠部６と係合するガイドピン１４に案内されながらガイド筒５から所定量飛び出す。この場合ガイド筒５が設けられていない実施例に於いては、錠把手１０はハンドルケース１から直接飛び出す。
【００２７】
そこで、シリンダー錠２５を交換しようとする場合は、まず固着具４３を緩めて嵌合支持部２０の固着具用メネジ孔２１から取り外し、次に抜脱防止片４０を錠把手１０の貫通孔１８から引き抜く。その結果、シリンダー錠２５の抜脱防止片変形防止具３０は抜脱防止片４０から開放され、キー２６を介してシリンダー錠２５を錠把手１０から引き抜くことができる。この場合抜脱防止片変形防止具３０は、図５で示すようにシリンダー錠２５と共に錠把手１０から引き抜かれる。
【００２８】
ところで、シリンダー錠２５が錠把手１０に組み込まれ、抜脱防止片４０が固着具４３を介してシリンダー錠２５の嵌合支持部２０に固定されている場合に於いて、例えば泥棒がシリンダー錠２５のキー孔に細い長板片を差し込み、力の有る限り周方向に回転しようとした時、シリンダー錠２５側から抜脱防止片４０の脚部４１、４１及び抜脱防止片変形防止具３０の当接変形防止アーム３４ａ、３４ａの両方に強力な力が加わる。
【００２９】
しかしながら、所要間隙３５、３５に差し込まれた抜脱防止片４０の脚部４１、４１の外壁面４１ａ、４１ａと当接変形防止アーム３４ａ、３４ａの内壁面とは密接状態な関係にあるので、抜脱防止片４０の脚部４１、４１は変形しようにも変形することができない。すなわち、シリンダー錠２５のフラット面２７、２７側から抜脱防止片４０の脚部４１、４１に周方向への変形（圧接）力が作用しても、抜脱防止片４０の脚部４１、４１は線ないし面接触の状態で肉厚状当接変形防止アーム３４ａ、３４ａの内壁面に支持される。
【００３０】
したがって、抜脱防止片４０の脚部４１、４１は外拡変位しない。なお、上記圧接力が変形防止具３０に作用した場合、錠把手１０の筒状部１２の係合部２２と係合関係にある変形防止具３０自体もシリンダー錠２５の回転を阻止している。またシリンダー錠２５を錠把手１０から引き抜こうとしても、抜脱防止片４０の脚部４１、４１はシリンダー錠２５と一体（螺着）関係にある変形防止具３０の装着部３３に当接しているので、シリンダー錠２５を容易に引き抜くことができない。
【００３１】
【異なる実施例】
次に本願発明の異なる実施例につき説明する。なお、第１実施例と同一の部分には同一の符号を付し、重複する説明を省略する。
【００３２】
図８乃至図１１に示す本願発明の第２実施例に於いて、第１実施例と主に異なる点は、筒状抜脱防止具３０Ａに当接変形防止アームなどを有する当接アームを形成するのではなく、シリンダー錠２５Ａの環状部５０にＬ又はコ字型抜脱防止片４０Ａ用の当接変形防止アーム５１を形成した点である。
【００３３】
すなわち、シリンダー錠２５Ａの外筒の環状部５０には、環状部５０と連設するネジ部の上方フラット面２７Ａに対向するように当接変形防止アーム５１が所要の長さ延設されている。つまり図１１で示すように、この当接変形防止アーム５１の内壁面３６Ａとシリンダー錠２５Ａのフラット面２７Ａとの間に生ずる間隙３５Ａに抜脱防止片４０Ａの脚部４１が差し込まれる。
【００３４】
したがって、この実施例では筒状抜脱防止具３０Ａはシリンダー錠２５Ａのオネジ２８Ａと螺着し、該シリンダー錠２５Ａと一体的に結合しているので、抜脱防止具３０Ａは、シリンダー錠２５Ａに対してはストッパー機能を有する抜脱防止片４０Ａと相俟ってシリンダー錠２５Ａが錠把手１０Ａから抜脱するのを防止するが、抜脱防止片４０Ａに対しては脚部４１の変形を防止する機能を有しない。この第２実施例では、当接変形防止アーム５１は１本のみ設けられているが、上下のフラット面２７Ａに対面するように一対設けても良い。
【００３５】
なお、この第２実施例に於いて、シリンダー錠２５Ａに当接変形防止アーム５１を形成せず、抜脱防止片４０Ａの脚部４１自体の肉厚を厚いものにしても良い。
【００３６】
【発明の効果】
以上の説明から明らかなように、本願発明にあっては次に列挙するような効果がある。
（１）シリンダー錠のネジ部に一体的に螺着する抜脱防止片変形防止具又は筒状抜脱防止具と錠把手の筒状部に固定される抜脱防止片とが相俟ってシリンダー錠が錠把手から容易に抜けない。
（２）シリンダー錠を周方向に力一杯回そうとしても、前記抜脱防止片が容易に変形しない。特に当接変形防止アーム（３４ａ、５１）の内壁面（３６、３６Ａ）がシリンダー錠（２５、２５Ａ）のフラット面（２７、２７Ａ）と同様に面状に形成されている場合は、抜脱防止片（４０、４０Ａ）の脚部は当接変形防止アームの内壁面に、いわば線〜面接触の状態で圧接するので、きわめて容易に外拡変位しない。
（３）抜脱防止片用当接アーム３４が、合計４本設けられており、シリンダー錠２５の２個のフラット面２７、２７とそれぞれ所要間隙３５、３５を有して対向する２本の当接変形防止アーム３４ａ、３４ａと、これらの当接変形防止アーム３４ａ、３４ａと交差方向に対設する当接ガイドアーム３４ｂ、３４ｂとから成る実施例に於いては、抜脱防止片４０を抜脱防止片変形防止具３０の当接アーム３４に位置決めされた状態で容易に差し込むことができる。
（４）錠把手１０の筒状部１２の前部に形成された貫通孔１８を有する抜脱防止片嵌合支持部２０の近傍に突起部１９が形成され、一方、この突起部１９が係合する係合切欠部７を開口側の周壁部に有するガイド筒５がハンドルケース１とシリンダー錠との間に介在している実施例に於いては、錠把手１０が軸心方向にスムースに案内されると共に、該錠把手を介して係合ボルト８を有するガイド筒を回転することができる。
【図面の簡単な説明】
図１ないし図７は本願発明の第１実施例の各説明図。図８及び図１１は本願発明の第２実施例の各説明図。
【図１】第１実施例の錠前の基本的な部材の組合わせを示す説明図。
【図２】図１の２ー２線概略縦断面説明図。
【図３】一部切欠の分解斜視図。
【図４】要部分解斜視図。
【図５】シリンダー錠に抜脱防止片変形防止具を螺着した状態の説明図。
【図６】抜脱防止片変形防止具と抜脱防止片との関係を示す説明図。
【図７】主要部材の結合関係を示す説明図。
【図８】第２実施例の一部切欠の分解斜視図。
【図９】要部の分解斜視図。
【図１０】要部の説明図。
【図１１】要部の説明図。
【符号の説明】
１…ハンドルケース、５…ガイド筒、１０、１０Ａ…錠把手、１２…筒状部、１８…貫通孔、１９…突起部、２０…嵌合支持部、２５、２５Ａ…シリンダー錠、２７、２７Ａ…フラット面、２８、２８Ａ…オネジ、３０…抜脱防止片変形防止具、３０Ａ…筒状の抜脱防止具、３４…当接アーム、３４ａ、５１…当接変形防止アーム、３６、３６Ａ…内壁面、３５、３５Ａ…間隙、４０、４０Ａ…抜脱防止片、４１、４１Ａ…脚部、４３…固着具。[0001]
[Industrial application fields]
The present invention relates to a fixing structure between a lock handle and a cylinder lock attached to an opening / closing door of a vending machine or a coin locker.
[0002]
[Prior art]
Conventionally, the lock attached to the opening / closing door of a vending machine or coin locker is basically a lock handle case fixed to the opening / closing door, and a lock handle fitted directly or indirectly into the handle case, It is composed of a cylinder lock that is removably fitted to the cylindrical portion of the lock handle, and a fixing structure between the lock handle and the lock of the lock is devised as a theft prevention measure against the thief.
[0003]
What should be a problem with this fixing structure is that even if a thief tries to pull out the cylinder lock from the lock handle using a tool, the cylinder lock cannot be easily removed, and a thin long plate is inserted into the key hole of the cylinder lock. If you insert a piece and try to turn the cylinder lock in the circumferential direction, it will not rotate.
[0004]
Therefore, in order to solve these problems, a U-shaped engaging tool as a removal preventing piece is inserted into a radial through hole formed in the front portion of the cylindrical portion of the lock handle, and this U-shaped The engaging tool is fixed to the cylindrical portion of the lock handle via the fixing tool.
[0005]
In this case, a screw-like locking portion that engages with a locking groove formed on the outer wall of the cylinder lock is formed on the locking leg portion of the U-shaped engagement tool.
[0006]
However, in the above configuration, the former problem can be solved for the time being, but the latter problem cannot be solved sufficiently.
[0007]
[Problems to be solved by the invention]
In view of the above-mentioned conventional drawbacks, the present invention has two points that should be a problem with the fixing structure, that is, the lock of the lock that does not rotate in the circumferential direction in the lock handle at the same time that the cylinder lock cannot be easily removed from the lock handle It is to obtain a fixing structure between the handle and the cylinder lock. Accordingly, a first object of the present invention is to provide a removal prevention piece deformation prevention device that is integrally screwed to the threaded portion of the cylinder lock or a tubular removal prevention device that is fixed to the tubular portion of the lock handle. The cylinder lock cannot be easily removed from the lock handle in combination with the prevention piece. The second purpose is that the removal prevention piece can be easily removed even if the cylinder lock is rotated in the circumferential direction. It is not deformed.
[0008]
[Means for Solving the Problems]
The lock structure of the lock handle and the cylinder lock according to the present invention has a lock handle case 1 fixed to the open / close door, a handle case 1, and a spring 13 that is constantly urged outward by the spring 13. A lock handle 10, a cylinder lock 25 that is removably fitted to the cylindrical portion 12 of the lock handle, a cylindrical mounting portion 33 having a female screw 32 that is screwed into a male screw 28 of the cylinder lock, and the mounting portion A cylindrical removal prevention piece deformation preventing device 30 having a removal prevention piece contact arm 34 extending from one peripheral end portion of 33, and being formed in an L shape or a U shape, A locking portion 42 that comes into contact with the outer wall surface 20a of the fitting support portion 20 of the lock handle 10 in a state of surface contact, and extends in the orthogonal direction from the locking portion 42 and contacts the flat surface of the cylinder lock 25. Between the planar inner wall surface 36 of the arm A removal preventing piece 40 having a leg portion 41 inserted through the through hole 18 of the cylindrical portion 12 of the lock handle so that the gap 35 is supported in a line or surface contact state with the inner wall surface ; And a fixing tool 43 for fixing the pull-out prevention piece 40 to the cylindrical portion 12.
[0009]
The lock structure of the lock handle and the cylinder lock according to the present invention includes a handle case 1 that is fixed to the open / close door, a handle case 1 that is built in the handle case 1 and is constantly biased outward by the spring 13. A lock handle 10, a cylinder lock 25 A that is removably fitted to the cylindrical portion 12 of the lock handle, a cylindrical removal prevention tool 30 A that is screwed onto the male screw 28 A of the cylinder lock, and an L-shape. In addition to being formed in a U-shape or a U-shape, a locking portion 42 that contacts the outer wall surface 20a of the fitting support portion 20 of the lock handle 10 in a surface contact state, and extends from the locking portion 42 in the orthogonal direction. In addition, a line or surface contact with the inner wall surface is formed in a gap 35A formed between the flat surface 27A of the cylinder lock 25A and the planar inner wall surface 36A of the contact deformation preventing arm 51 extending on the annular portion 50 of the cylinder lock 25A. State of 40 A of leg prevention parts which have the leg part 41 inserted through the through-hole 18 of the cylindrical part 12 of a lock handle so that it may be supported in this state, and this removal prevention piece 40 A are attached to the said cylindrical part 12 The fixing tool 43 is fixed.
[0010]
[Action]
When the cylinder lock is incorporated in the lock handle and the removal prevention piece is fixed to the cylindrical part of the cylinder lock via a fastener, for example, a thief inserts a thin long plate piece into the key hole of the cylinder lock. When an attempt is made to rotate in the circumferential direction as long as there is a force, a strong force is applied to both the leg portion of the removal preventing piece and the contact deformation preventing arm from the cylinder lock side.
[0011]
However, since the outer wall surface of the leg portion of the removal prevention piece inserted into the required gap and the inner wall surface of the contact deformation prevention arm are in close contact with each other, the leg portion of the removal prevention piece is deformed to be deformed. Can not do it.
[0012]
【Example】
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. 1 to 7 show a first embodiment. Reference numeral 1 denotes a lock handle case fixed to an opening / closing door of a vending machine, a coin locker, etc. The handle case 1 includes a fitting portion 2 formed in a bowl shape, and a cylindrical portion 3 connected to the fitting portion. Consists of. The fitting portion of the handle case 1 is formed in an arbitrary shape such as a T shape or an O shape when viewed from the front side, and a through hole 4 is formed in the rear wall of the cylindrical portion 3.
[0013]
Reference numeral 5 denotes a guide cylinder that is rotatably mounted in the cylindrical portion 3 of the handle case 1. Guide notches 6 are formed in the upper and lower portions of the guide cylinder 5 in the axial direction, and rectangular engagement notches 7 are formed at appropriate portions of the peripheral wall on the opening side. Is integrally provided with an engaging bolt 8 penetrating the through hole 4. A long plate-like engagement plate (not shown) is attached to the engagement bolt 8 via a fixture such as a nut 9 and indirectly engages with an engagement portion on the vending machine main body side, for example.
[0014]
Reference numeral 10 denotes a lock handle that is slidably fitted into the handle case 1 via the guide cylinder 5. The lock handle 10 is fitted to the fitting portion 2 of the handle case 1 and has a slightly T-shaped handle portion 11. And a cylindrical portion 12 provided continuously to the handle portion 11. The lock handle 10 is also formed in an arbitrary cross-sectional shape corresponding to the cross-sectional shape of the fitting portion 2 of the handle case 1.
[0015]
A spring 13 is interposed between the outer surface of the rear end of the cylindrical portion 12 of the lock handle 10 and the inner surface of the rear wall of the guide tube 5. The spring 13 always urges the lock handle 10 outward of the handle case 1. Has been. Although not particularly shown, a drive cam is rotatably mounted in the rear portion of the lock handle, and a lock piece is engaged with the drive cam.
[0016]
Reference numeral 18 denotes a through hole for a removal preventing piece formed at a front portion of the cylindrical portion 12 of the lock handle 10 with a required interval. The through-holes 18 for the removal preventing pieces are small quadrangular shapes, and are formed in a pair of two in total in the radial direction of the cylindrical portion 12.
[0017]
Reference numeral 19 denotes a protrusion which is formed on the front outer wall of the cylindrical portion 12 so as to be positioned before and after the through-hole 18 for the removal preventing piece, and which engages or fits into the engagement notch portion 7 of the guide tube 5. Part. It is desirable that the protrusion 19 be formed wide in the axial direction of the cylindrical portion 12 in consideration of the engagement relationship with the engagement notch 7 of the guide cylinder 5.
[0018]
Reference numeral 20 denotes a fitting support portion for a removal preventing piece formed on the projection portion 19 of the cylindrical portion 12 of the lock handle 10, and this fitting support portion 20 is thinner than the projection portion 19 and has a central portion. Are formed with through holes, in this embodiment, female screw holes 21 for fixing tools. In addition, the outer wall surface of the fitting support part 20 is flat.
[0019]
Reference numeral 22 denotes a protrusion or long groove-like engaging portion that is formed on the inner wall of the cylindrical portion 12 of the lock handle 10 and that engages with an engaged portion of an anti-detachment piece deformation prevention device described later. In this embodiment, the engaging portion 22 is a plurality (four in total) of protrusions formed in the axial direction of the cylindrical portion 12.
[0020]
A cylinder lock 25 is removably fitted to the lock handle 10, and a key 26 is inserted into the cylinder lock 25. As shown in FIG. 2, flat surfaces 27, 27 are formed on the outer peripheral wall of the cylinder lock 25, and male screws 28 are formed on other portions excluding the flat surfaces 27, 27. The cylinder lock 25 is provided with a drive shaft 29 that is rotated by the operation of the key 26 and is fitted into the fitting hole of the drive cam.
[0021]
Reference numeral 30 denotes an anti-detachment piece deformation prevention device attached to the outer peripheral wall of the cylinder lock 25. The removal preventing piece deformation preventing tool 30 is screwed to the cylinder lock 25 in this embodiment.
[0022]
By the way, as shown in FIG. 2 thru | or FIG. 7, the removal prevention piece deformation | transformation prevention tool 30 has the long groove-shaped engaged part 31 engaged with the protrusion engaging part 22 of the lock handle 10 mentioned above on an outer peripheral wall. On the other hand, a cylindrical mounting portion 33 having a female screw 32 screwed with the male screw 28 of the cylinder lock 25 described above at an appropriate location on the inner peripheral wall, and from one peripheral end of the mounting portion 33 in the axial direction. It comprises a contact arm 34 for the removal preventing piece that extends.
[0023]
In the present embodiment, a total of four contact prevention arms 34 for the removal preventing pieces are provided, and the two contact arms 34 are opposed to the flat surfaces 27 and 27 of the cylinder lock 25 with the required gaps 35 and 35, respectively. The contact deformation prevention arms 34a and 34a are slightly different from the other two contact guide arms 34b and 34b.
[0024]
That is, as shown in FIG. 2, the pair of contact deformation preventing arms 34a and 34a facing the flat surfaces 27 and 27, respectively, is paired with the pair of contact deformation preventing arms 34a and 34a perpendicularly. The contact guide arms 34 b and 34 b are formed to be thicker than the abutment guide arms 34 b and 34 b, and the inner wall surfaces 36 and 36 are formed in a planar shape in the same manner as the flat surfaces 27 and 27. The contact deformation preventing arms 34a and 34a are vertically arranged in the present embodiment, but are not necessarily provided in a pair, and only one contact deformation preventing arm 34a may be provided.
[0025]
Reference numeral 40 denotes a leg 41 in a required gap 35 formed between the through hole 18 for the removal preventing piece of the cylindrical portion 12 of the lock handle 10 and the flat surface 27 of the cylinder lock 25 and the inner wall surface 36 of the contact deformation preventing arm 34a. It is an L-shaped or U-shaped pull-out prevention piece into which is inserted. In this embodiment, the pull-out preventing piece 40 is formed in a U-shape as shown in FIG. 2 or FIG. 6, and comes into contact with the outer wall surface 20a of the fitting support portion 20 of the lock handle 10 in a surface contact state. The locking portion 42 includes the pair of leg portions 41 and 41 extending from the locking portion 42 in the orthogonal direction. A locking through hole 44 for the fastener 43 is formed at the center of the locking portion 42. The locking through hole 44 for the fastener is coincident with the aforementioned female screw hole 21 for the fastener. Further, the removal preventing piece 40 is in contact with the peripheral end surface of the mounting portion 33 of the removal preventing piece deformation preventing device 30 in a state where the leg portion 41 has a stopper function so as to intersect with the removal preventing piece deformation preventing device 30. Touch. In addition, it is desirable that the leg portion 41 of the removal preventing piece 40 is made thick so as not to be easily deformed in design.
[0026]
In the above configuration, first, the key 26 is rotated in the unlocking direction, and the lock handle 10 jumps out of the guide cylinder 5 while being guided by the guide pin 14 engaged with the guide notch 6 by the spring force of the spring 13. . In this case, in the embodiment in which the guide cylinder 5 is not provided, the lock handle 10 protrudes directly from the handle case 1.
[0027]
Therefore, when the cylinder lock 25 is to be replaced, the fixing tool 43 is first loosened and removed from the fixing tool female screw hole 21 of the fitting support portion 20, and then the removal preventing piece 40 is removed from the through hole 18 of the lock handle 10. Pull out from. As a result, the removal preventing piece deformation preventing tool 30 of the cylinder lock 25 is released from the removal preventing piece 40, and the cylinder lock 25 can be pulled out from the lock handle 10 through the key 26. In this case, the removal preventing piece deformation preventing tool 30 is pulled out from the lock handle 10 together with the cylinder lock 25 as shown in FIG.
[0028]
By the way, when the cylinder lock 25 is incorporated in the lock handle 10 and the removal preventing piece 40 is fixed to the fitting support portion 20 of the cylinder lock 25 via the fixing member 43, for example, a thief is a cylinder lock 25. When a thin long plate piece is inserted into the key hole of the cylinder and attempts to rotate in the circumferential direction as long as there is force, the leg portions 41 and 41 of the removal preventing piece 40 and the removal preventing piece deformation preventing device 30 are removed from the cylinder lock 25 side. A powerful force is applied to both of the contact deformation preventing arms 34a and 34a.
[0029]
However, since the outer wall surfaces 41a and 41a of the leg portions 41 and 41 of the removal preventing piece 40 inserted into the required gaps 35 and 35 and the inner wall surfaces of the contact deformation preventing arms 34a and 34a are in a close relationship, The leg portions 41 and 41 of the removal preventing piece 40 cannot be deformed even if they are deformed. That is, even if a circumferential deformation (pressure contact) force acts on the leg portions 41, 41 of the removal prevention piece 40 from the flat surfaces 27, 27 side of the cylinder lock 25, the leg portions 41, 41 of the removal prevention piece 40, 41 is supported on the inner wall surfaces of the thick contact deformation preventing arms 34a, 34a in a line or surface contact state.
[0030]
Therefore, the leg portions 41, 41 of the removal preventing piece 40 are not displaced outwardly. In addition, when the said press-contact force acts on the deformation | transformation prevention tool 30, the deformation | transformation prevention tool 30 itself which is engaged with the engaging part 22 of the cylindrical part 12 of the lock handle 10 also prevents rotation of the cylinder lock 25. . Even if the cylinder lock 25 is pulled out of the lock handle 10, the leg portions 41, 41 of the removal preventing piece 40 come into contact with the mounting portion 33 of the deformation preventing device 30 that is integral (screwed) with the cylinder lock 25. Therefore, the cylinder lock 25 cannot be pulled out easily.
[0031]
[Different embodiments]
Next, different embodiments of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as 1st Example, and the overlapping description is abbreviate | omitted.
[0032]
The second embodiment of the present invention shown in FIGS. 8 to 11 is mainly different from the first embodiment in that a contact arm having a contact deformation preventing arm and the like is formed on the cylindrical removal preventing tool 30A. Instead, the contact deformation preventing arm 51 for the L or U-shaped removal preventing piece 40A is formed on the annular portion 50 of the cylinder lock 25A.
[0033]
That is, the contact deformation preventing arm 51 is extended to the annular portion 50 of the outer cylinder of the cylinder lock 25 </ b> A so as to face the upper flat surface 27 </ b> A of the screw portion continuous with the annular portion 50. . That is, as shown in FIG. 11, the leg portion 41 of the removal preventing piece 40A is inserted into a gap 35A formed between the inner wall surface 36A of the contact deformation preventing arm 51 and the flat surface 27A of the cylinder lock 25A.
[0034]
Therefore, in this embodiment, the cylindrical removal preventing tool 30A is screwed to the male screw 28A of the cylinder lock 25A and is integrally coupled with the cylinder lock 25A. Therefore, the removal prevention tool 30A is attached to the cylinder lock 25A. On the other hand, the cylinder lock 25A is prevented from being detached from the lock handle 10A in combination with the removal preventing piece 40A having a stopper function, but the leg 41 is prevented from being deformed with respect to the removal preventing piece 40A. It does not have a function to do. In the second embodiment, only one contact deformation preventing arm 51 is provided, but a pair may be provided so as to face the upper and lower flat surfaces 27A.
[0035]
In the second embodiment, the abutting deformation preventing arm 51 may not be formed on the cylinder lock 25A, and the leg portion 41 of the removal preventing piece 40A may be thick.
[0036]
【The invention's effect】
As apparent from the above description, the present invention has the following effects.
(1) A combination of an anti-detachment piece or a cylindrical anti-detachment tool that is integrally screwed onto the threaded portion of the cylinder lock and an anti-detachment piece that is fixed to the cylindrical part of the lock handle. The cylinder lock cannot be easily removed from the lock handle.
(2) Even if an attempt is made to rotate the cylinder lock in the circumferential direction as much as possible, the removal preventing piece does not easily deform. In particular, when the inner wall surfaces (36, 36A) of the abutting deformation preventing arms (34a, 51) are formed in a planar shape similar to the flat surfaces (27, 27A) of the cylinder locks (25, 25A), they are removed and removed . Since the leg portions of the prevention pieces (40, 40A) are in pressure contact with the inner wall surface of the contact deformation prevention arm in a so-called line-to-surface contact state, they do not displace very easily.
(3) A total of four contact prevention arms 34 for removal prevention pieces are provided, and the two flat surfaces 27 and 27 of the cylinder lock 25 are opposed to each other with the required gaps 35 and 35, respectively. In the embodiment comprising the abutting deformation preventing arms 34a, 34a and the abutting guide preventing arms 34b, 34b facing the abutting deformation preventing arms 34a, 34a in the crossing direction, the removal preventing piece 40 is provided. It can be easily inserted while being positioned on the contact arm 34 of the removal preventing piece deformation preventing device 30.
(4) A protrusion 19 is formed in the vicinity of the removal preventing piece fitting support portion 20 having a through hole 18 formed in the front portion of the cylindrical portion 12 of the lock handle 10, while the protrusion 19 is engaged. In the embodiment in which the guide cylinder 5 having the engaging notch portion 7 to be joined in the peripheral wall portion on the opening side is interposed between the handle case 1 and the cylinder lock, the lock handle 10 is smooth in the axial direction. While being guided, the guide tube having the engagement bolt 8 can be rotated through the lock handle.
[Brief description of the drawings]
1 to 7 are explanatory views of a first embodiment of the present invention. 8 and 11 are explanatory views of a second embodiment of the present invention.
FIG. 1 is an explanatory view showing a combination of basic members of a lock according to a first embodiment.
FIG. 2 is a schematic longitudinal cross-sectional explanatory view taken along line 2-2 in FIG.
FIG. 3 is an exploded perspective view of a partially cutout.
FIG. 4 is an exploded perspective view of a main part.
FIG. 5 is an explanatory view showing a state in which a removal prevention piece deformation preventing device is screwed onto the cylinder lock.
FIG. 6 is an explanatory view showing the relationship between the removal preventing piece deformation preventing tool and the removal preventing piece.
FIG. 7 is an explanatory diagram showing a coupling relationship of main members.
FIG. 8 is an exploded perspective view of a partly cutout of the second embodiment.
FIG. 9 is an exploded perspective view of a main part.
FIG. 10 is an explanatory diagram of a main part.
FIG. 11 is an explanatory diagram of a main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Handle case, 5 ... Guide cylinder 10, 10A ... Lock handle, 12 ... Cylindrical part, 18 ... Through-hole, 19 ... Projection part, 20 ... Fitting support part, 25, 25A ... Cylinder lock, 27, 27A ... Flat surface, 28, 28A ... Male screw, 30 ... Detachment prevention piece deformation prevention tool, 30A ... Cylindrical removal prevention tool, 34 ... Contact arm, 34a, 51 ... Contact deformation prevention arm, 36, 36A ... Inner wall surface, 35, 35A ... gap, 40, 40A ... removal prevention piece, 41, 41A ... leg, 43 ... fixing tool.

Claims (5)

開閉扉に固定される錠前のハンドルケース１と、ハンドルケース１に内装されかつバネ１３でハンドルケース１の外方向に常時付勢された錠把手１０と、この錠把手の筒状部１２に取り外し可能に嵌合するシリンダー錠２５と、このシリンダー錠のオネジ２８に螺合するメネジ３２を有する筒状の装着部３３と該装着部３３の一方の周端部から延設する抜脱防止片用当接アーム３４とを有する筒状の抜脱防止片変形防止具３０と、Ｌ字型又はコ字型に形成されていると共に、錠把手１０の嵌合支持部２０の外壁面と面接触の状態で当接する係止部４２と該係止部４２から直交方向に延設すると共に前記シリンダー錠２５のフラット面と前記当接アームの面状内壁面３６との間に生ずる間隙３５に前記内壁面に線ないし面接触の状態で支持されるように錠把手の筒状部１２の貫通孔１８を介して差し込まれる脚部４１とをと有する抜脱防止片４０と、該抜脱防止片４０を前記筒状部１２に固定する固着具４３とを備える錠前の錠把手とシリンダー錠との固定構造。The lock handle case 1 fixed to the open / close door, the lock handle 10 which is built in the handle case 1 and is always urged outward by the spring 13, and the cylindrical portion 12 of the lock handle are removed. A cylindrical mounting portion 33 having a cylinder lock 25 that can be fitted, a female screw 32 that is threadedly engaged with a male screw 28 of the cylinder lock, and a removal preventing piece that extends from one peripheral end portion of the mounting portion 33. A cylindrical pull-out prevention piece deformation preventing device 30 having an abutting arm 34 and an L-shape or U-shape, and in surface contact with the outer wall surface of the fitting support portion 20 of the lock handle 10. A locking portion 42 that abuts in the state, and extends in an orthogonal direction from the locking portion 42, and the gap 35 formed between the flat surface of the cylinder lock 25 and the planar inner wall surface 36 of the abutting arm. Supported in a line or surface contact with the wall In this way, the removal preventing piece 40 having the leg portion 41 inserted through the through hole 18 of the cylindrical portion 12 of the lock handle, and the fixing tool 43 for fixing the removal preventing piece 40 to the tubular portion 12. A lock structure with a lock handle and a cylinder lock. 請求項１において、当接変形防止アーム３４ａは肉厚に形成されていることを特徴とする錠前の錠把手とシリンダー錠との固定構造。2. The structure for fixing a lock handle and a cylinder lock according to claim 1, wherein the contact deformation preventing arm 34a is formed thick. 請求項１又は請求項２に於いて、抜脱防止片用当接アーム３４は、合計４本設けられており、シリンダー錠２５の２個のフラット面２７、２７とそれぞれ所要間隙３５、３５を有して対向する２本の当接変形防止アーム３４ａ、３４ａと、これらの当接変形防止アーム３４ａ、３４ａと交差方向に対設する当接ガイドアーム３４ｂ、３４ｂとから成ることを特徴とする錠前の錠把手とシリンダー錠との固定構造。In Claim 1 or Claim 2, there are provided a total of four abutment arms 34 for removal prevention pieces, and the two flat surfaces 27, 27 of the cylinder lock 25 and the required gaps 35, 35 respectively. It has two contact deformation preventing arms 34a, 34a facing each other, and contact guide arms 34b, 34b facing the contact deformation preventing arms 34a, 34a in the crossing direction. Fixing structure between lock handle and cylinder lock. 請求項１において、抜脱防止片嵌合支持部２０の近傍には突起部１９が形成され、一方、この突起部１９が係合する係合切欠部７を開口側の周壁部に有するガイド筒５がハンドルケース１とシリンダー錠との間に介在していることを特徴とする錠前の錠把手とシリンダー錠との固定構造。2. A guide cylinder according to claim 1, wherein a protrusion 19 is formed in the vicinity of the removal preventing piece fitting support portion 20, and an engagement notch 7 with which the protrusion 19 engages is formed on the peripheral wall portion on the opening side. A fixing structure of a lock handle and a cylinder lock of the lock, wherein 5 is interposed between the handle case 1 and the cylinder lock. 開閉扉に固定される錠前のハンドルケース１と、ハンドルケース１に内装
されかつバネ１３でハンドルケース１の外方向に常時付勢された錠把手１０と、この錠把手の筒状部１２に取り外し可能に嵌合するシリンダー錠２５Ａと、このシリンダー錠のオネジ２８Ａに螺着された筒状の抜脱防止具３０Ａと、Ｌ字型又はコ字型に形成されていると共に、錠把手１０の嵌合支持部２０の外壁面と面接触の状態で当接する係止部４２と該係止部４２から直交方向に延設すると共に前記シリンダー錠２５Ａのフラット面２７Ａとシリンダー錠２５Ａの環状部５０に延設された当接変形防止アーム５１の面状内壁面３６Ａとの間に生ずる間隙３５Ａに前記内壁面に線ないし面接触の状態で支持されるように錠把手の筒状部１２の貫通孔１８を介して差し込まれる脚部４１とをと有する抜脱防止片４０Ａと、該抜脱防止片４０Ａを前記筒状部１２に固定する固着具４３とを備える錠前の錠把手とシリンダー錠との固定構造。A lock handle case 1 fixed to the opening / closing door, a lock handle 10 which is built in the handle case 1 and is always urged outward by the spring 13, and a cylindrical portion 12 of the lock handle are removed. A cylinder lock 25A that can be fitted, a cylindrical removal prevention tool 30A that is screwed onto the male screw 28A of the cylinder lock, and an L-shaped or U-shaped shape, and the fitting of the lock handle 10 A locking portion 42 that comes into contact with the outer wall surface of the joint support portion 20 in a state of surface contact, and extends from the locking portion 42 in a direction orthogonal to the flat surface 27A of the cylinder lock 25A and the annular portion 50 of the cylinder lock 25A. A through-hole of the cylindrical portion 12 of the lock handle so that the gap 35A formed between the extending contact-preventing arm 51 and the planar inner wall surface 36A is supported in line or surface contact with the inner wall surface. 18 through Fixing structure of the pull-out preventing piece 40A, and lock the lock handle and cylinder lock and a fastener 43 for securing the 該抜 de prevention piece 40A into the tubular portion 12 having an a Murrell leg 41.

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