JP3581741B2

JP3581741B2 - Fixing structure between lock handle of lock and cylinder lock

Info

Publication number: JP3581741B2
Application number: JP10828795A
Authority: JP
Inventors: 赤松邦夫
Original assignee: 美和ロック株式会社
Priority date: 1995-04-07
Filing date: 1995-04-07
Publication date: 2004-10-27
Anticipated expiration: 2019-10-27
Also published as: JPH08277661A

Description

【０００１】
【産業上の利用分野】
本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筒状のストッパー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と同時に、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。また第２の目的は、部品点数を少なくしても、１つの部材（抜脱防止片）でシリンダー錠の抜脱防止及び回転防止の両方の効果を得ることができると同時に、シリンダー錠を周方向に力一杯回そうとしても、１つの部材（抜脱防止片）の脚部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に螺着される筒状の抜脱防止片用ストッパー具３０と、前記筒状部１２の前部に形成された貫通孔１８及び前記錠把手１０の筒状部１２の内壁面３６と前記シリンダー錠２５のフラット面２７との間に生ずる間隙３５に脚部４１が差し込まれる抜脱防止片４０と、この抜脱防止片４０の脚部４１が前記抜脱防止片用ストッパー具３０と交差した状態で該抜脱防止片４０を前記筒状部１２に固定する固着具４３とを備え、前記脚部４１には錠把手１０Ａの筒状部１２の内壁面３６と線乃至面接触する圧接部４５が形成されていることを特徴とする。
【０００９】
また本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１０Ａと、この錠把手の筒状部１２Ａ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外筒部５１に該シリンダー錠の軸方向と交差して形成された係合溝４９と、前記筒状部１２Ａの前部に形成された貫通孔１８及び前記錠把手１０の筒状部１２Ａの内壁面３６Ａと前記シリンダー錠２５Ａの係合溝４９との間に生ずる間隙３５Ａに脚部４１Ａが差し込まれる抜脱防止片４０Ａと、この抜脱防止片４０Ａの脚部４１Ａが前記係合溝４９と係合した状態で該抜脱防止片４０Ａを前記筒状部１２Ａに固定する固着具４３とを備え、前記脚部４１Ａには錠把手１０Ａの筒状部１２Ａの内壁面３６Ａと線乃至面接触する圧接部４５Ａが形成されてい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に強力な力が加わる。
【００１１】
しかしながら、間隙に差し込まれた抜脱防止片の脚部と錠把手の筒状部の内壁面とは線ないし面接触の関係にあるので、抜脱防止片の脚部は容易に変形しない。
【００１２】
【実施例】
以下、図面に示す実施例により本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幅広の係合切欠部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、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が、本実施例では一方側の貫通孔の１つ（図２を基準にすると左側の上方に位置する貫通孔）は、後述する抜脱防止片の脚部の肉厚を考慮し、他の貫通孔よりも大きめに形成されている。
【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は図２で示すように錠把手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用ストッパー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及び図４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用ストッパー具である。この抜脱防止片用ストッパー具３０は、本実施例では筒状に形成され、シリンダー錠２５に螺着されている。
【００２２】
しかして、抜脱防止片用ストッパー具３０は、図２及び図４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。
【００２３】
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と錠把手１０の筒状部の内壁面３６との間に生ずる間隙３５に脚部４１がそれぞれ差し込まれる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乃至図４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。
【００２４】
ところで、抜脱防止片４０は、その脚部４１が前記抜脱防止片用ストッパー具３０と交差した状態で該ストッパー具３０の周端面３３と当接する抜脱防止機能を有するが、本実施例では一方の脚部（図２を基準にすると上方の脚部）４１の厚さは、前記係止部４２よりも厚く、圧接部４５としての変形防止機能を有する。すなわち、抜脱防止片４０の少なくとも一方の脚部４１が山形状の肉厚に形成され、抜脱防止片４０を錠把手１０の貫通孔１８に差し込んだ際に、この肉厚部（圧接部）４５の外壁面４５ａが錠把手１０の筒状部１２の内壁面３６と線乃至面接触する。
【００２５】
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。
【００２６】
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の抜脱防止片用ストッパー具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用ストッパー具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。
【００２７】
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に強力な力が加わる。
【００２８】
しかしながら、間隙３５、３５に差し込まれた抜脱防止片４０の少なくとも一方の脚部４１の肉厚部（圧接部）４５の外壁面４５ａと錠把手１０の筒状部１２の内壁面３６とは線乃至面接触の関係にあるので、抜脱防止片４０の脚部４１は容易に変形しない。
【００２９】
すなわち、シリンダー錠２５のフラット面２７側から抜脱防止片４０の一方の脚部４１に周方向への変形（圧接）力が作用しても、抜脱防止片４０の一方の脚部４１は線ないし面接触の状態で筒状部１２の内壁面３６に圧接する。したがって、少なくとも抜脱防止片４０の一方の脚部４１は外拡変位せず、それ故にシリンダー錠２５は周方向に回転しない。
【００３０】
なお、上記圧接力がストッパー具３０に作用した場合、錠把手１０の筒状部１２の係合部２２と係合関係にあるストッパー具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）関係にある用ストッパー具３０の周端面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】
ところで、抜脱防止片４０の脚部４１の形状はＬ字型又はコ字型でも良い旨を記述したが、抜脱防止片４０の脚部４１の形状がコ字型である場合は、本実施例のように一方の脚部４１（上方か又は下方の脚部）に肉厚部（圧接部）４５を形成しても良いのみならず、対向する両方の脚部４１、４１にもそれぞれ肉厚部（圧接部）４５を形成しても良い。そして、この肉厚部（圧接部）４５の形態は、山形状、水平状、波状等でも良い。要は肉厚状の脚部４１の外壁面がシリンダー錠２５の筒状部１２の内壁面３６と圧接可能であれば良い。
【００３２】
【異なる実施例】
次に本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。
【００３３】
図８乃至図１１に示す本発明の第２実施例に於いて、第１実施例と主に異なる点は、抜脱防止片４０Ａのみでシリンダー錠２５Ａの抜脱防止及び回転防止の両方の効果を得ることができるように構成した点である。その結果、この第２実施例のシリンダー錠２５Ａの形態が第１実施例のシリンダー錠２５のそれとは相違し、必しもフラット面やオネジを有しない反面、抜脱防止片４０Ａの脚部４１Ａ、４１Ａが係合する水平方向の係合溝４９を少なくとも１個有し、係合溝４９と錠把手１０Ａの筒状部１２Ａの内壁面３６Ａとの間には間隙３５Ａが生ずる。
【００３４】
すなわち、シリンダー錠２５Ａの大径の環状部５０と連設する小径の外筒部５１には、シリンダー錠２５Ａの軸方向と交差する方向に一対の係合溝４９、４９が形成され、これらの係合溝４９、４９に前記間隙３５Ａを介し、望ましくは断面コ字型の抜脱防止片４０Ａの脚部４１Ａ、４１Ａが係合している。そして、前記上下の脚部４１Ａ、４１Ａの外壁面側には、錠把手１０Ａの筒状部１２Ａの内壁面３６Ａと圧接する山形状の肉厚部（圧接部）４５Ａがそれぞれ形成されている。なお、この実施例に於いても前記肉厚部（圧接部）４５Ａの形状は山形状、水平状、波状等でも良い。またシリンダー錠２５Ａの外部の形態を便宜上大径の環状部５０と、小径の外筒部５１とに区別しているが、構成上は環状部５０も外筒部５１の一部である。
【００３５】
したがって、この実施例では部品点数が少なくなり（第１実施例のようにシリンダー錠２５Ａと螺着する筒状のストッパ具が不要）、抜脱防止片４０Ａのみでシリンダー錠２５Ａの抜脱防止及び回転防止の両方の効果を得ることができる。
【００３６】
【発明の効果】
以上の説明から明らかなように、本発明にあっては次に列挙するような効果がある。
（１）第１実施例に於いては、シリンダー錠のネジ部に一体的に螺着する抜脱防止片用ストッパー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、前記抜脱防止片が変形しない。すなわち、抜脱防止片４０、４０Ａの脚部４１、４１Ａは肉厚部（圧接部）を有するので、その肉厚部（圧接部）４５、４５Ａが錠把手１０、１０Ａの筒状部１２、１２Ａの内壁面３６、３６Ａと線〜面接触の状態で圧接するので、容易に外拡変位せず、したがって、シリンダー錠２５、２５Ａが回転しない。
（３）第２実施例に於いては、部品点数が少なくなり（第１実施例のようにシリンダー錠２５Ａと螺着する筒状のストッパー具が不要であり）、抜脱防止片４０Ａのみでシリンダー錠２５Ａの抜脱防止及び回転防止の両方の効果を得ることができる。
（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は本発明の第１実施例の各説明図。図８及び図１１は本発明の第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用ストッパー具を螺着した状態の説明図。
【図６】抜脱防止片用ストッパー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実施例の図３に相当する一部切欠の分解斜視図。
【図９】第２実施例の図２に相当する概略縦断面説明図。
【図１０】要部の分解斜視図。
【図１１】主要部の概略説明図。
【符号の説明】
１…ハンドルケース、５…ガイド筒、１０、１０Ａ…錠把手、
１２、１２Ａ…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…フラット面、２８…オネジ、
３０…抜脱防止片用ストッパー具、３３…周端面、３５、３５Ａ…間隙、
３６、３６Ａ…内壁面、４０、４０Ａ…抜脱防止片、４１、４１Ａ…脚部、
４３…固着具、４５、４５Ａ…圧接部、４５ａ…（圧接部の）外壁面、
４９…係合溝、５０…環状部、５１…外筒部。[0001]
[Industrial applications]
The present invention relates to a structure for fixing a lock handle of a lock and a cylinder lock to be attached to an opening / closing door of a vending machine or a coin locker.
[0002]
[Prior art]
Conventionally, a lock attached to an opening / closing door of a vending machine or a coin locker is basically a handle case of a lock fixed to the opening / closing door, and a lock handle directly or indirectly fitted in the handle case, A cylinder lock which is detachably fitted to the cylindrical portion of the lock handle is provided. As a countermeasure against theft against a thief, a fixing structure between the lock handle of the lock and the cylinder lock is devised.
[0003]
The 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 does not come off easily, and a thin long plate is inserted in the key hole of the cylinder lock. Inserting a piece and trying to rotate the cylinder lock in the circumferential direction does not rotate.
[0004]
Therefore, in order to solve these problems, a U-shaped engaging tool as a removal prevention piece is inserted into a radial through hole formed in the front part of the tubular portion of the lock handle, and the U-shaped engagement tool is inserted. The engaging tool is fixed to the tubular portion of the lock handle via the fixing tool.
[0005]
In this case, a screw-shaped locking portion is formed on the locking leg of the U-shaped engaging device to engage with a locking groove formed on the outer wall of the cylinder lock.
[0006]
However, in the above configuration, the former problem can be solved for the time being, but the latter problem cannot be sufficiently solved.
[0007]
[Problems to be solved by the invention]
In view of the above-mentioned drawbacks of the related art, the present invention has two points that should be considered in the fixing structure, namely, a lock of a lock which does not easily come out of the lock handle and does not rotate in the circumferential direction in the lock handle. The purpose is to obtain a fixing structure between the handle and the cylinder lock. Therefore, a first object of the present invention is to provide a cylinder stopper which is integrally screwed into a screw portion of a cylinder lock, and a locking member which is fixed to the cylindrical portion of the lock handle. At the same time, the lock cannot be easily removed from the lock handle, and at the same time, if the cylinder lock is to be fully rotated in the circumferential direction, the removal preventing piece is not easily deformed. A second object is that, even if the number of parts is reduced, one member (removal preventing piece) can achieve both the effect of preventing the cylinder lock from being pulled out and the rotation, and at the same time, the circumference of the cylinder lock can be prevented. In this case, the legs of one member (prevention piece) are not easily deformed even if the user tries to make a full turn in the direction.
[0008]
[Means for Solving the Problems]
The structure for fixing the lock handle of the lock and the cylinder lock according to the present invention includes a handle case 1 of the lock fixed to the opening / closing door, and a housing 13 that is provided inside the handle case 1 and is always urged outward by the spring 13 in the outward direction of the handle case 1. A lock handle 10, a cylinder lock 25 removably fitted to the cylindrical portion 12 of the lock handle, a cylindrical stopper member 30 for a detachment prevention piece screwed onto a male screw 28 of the cylinder lock, A leg 41 is formed in a through hole 18 formed in a front portion of the cylindrical portion 12 and a gap 35 formed between an inner wall surface 36 of the cylindrical portion 12 of the lock 10 and the flat surface 27 of the cylinder lock 25. A fixing member 40 to be inserted and a fixing member for fixing the preventing member 40 to the tubular portion 12 in a state where the leg 41 of the preventing member 40 crosses the stopper member 30 for the preventing member. Tool 43, and the leg portion Wherein the inner wall surface 36 and the pressure contact portion 45 to the line or surface contact of the tubular portion 12 of the lock handle 10A is formed in the 1.
[0009]
Further, the lock structure of the lock of the present invention between the lock handle and the cylinder lock includes a handle case 1 of the lock fixed to the opening / closing door, and a housing 13 which is provided inside the handle case 1 and is always urged to the outside of the handle case 1 by a spring 13. 10A, a cylinder lock 25A removably fitted to the cylindrical portion 12A of the lock handle, and a lock formed on the outer cylinder portion 51 of the cylinder lock so as to intersect the axial direction of the cylinder lock. A gap formed between the mating groove 49, the through hole 18 formed at the front of the cylindrical portion 12A, the inner wall surface 36A of the cylindrical portion 12A of the lock 10 and the engaging groove 49 of the cylinder lock 25A. A stopper 40A into which the leg 41A is inserted into 35A, and the stopper 40A is attached to the cylindrical portion 12A with the leg 41A of the stopper 40A engaged with the engaging groove 49. Fixing fixture 43 for fixing The provided, wherein the inner wall surface 36A and a line to the pressure contact portion 45A which surface contact of the tubular portion 12A of the lock handle 10A in the leg portion 41A is formed.
[0010]
[Action]
In the case where 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 the fixing device, for example, a thief inserts a thin long plate piece into the key hole of the cylinder lock. When trying to rotate in the circumferential direction as long as there is a strong force, a strong force is applied to the legs of the pull-out prevention piece from the cylinder lock side.
[0011]
However, since the leg portion of the pull-out preventing piece inserted into the gap and the inner wall surface of the tubular portion of the lock handle have a line or surface contact relationship, the leg portion of the pull-out preventing piece does not easily deform.
[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, or the like. The handle case 1 includes a fitting portion 2 formed in a flange 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 a rear wall of the cylindrical portion 3.
[0013]
Reference numeral 5 denotes a guide cylinder rotatably provided 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 wide engaging notches 7 are formed in appropriate portions of the peripheral wall portion on the opening side. Is provided integrally with an engaging bolt 8 penetrating the through hole 4. A long plate-shaped engaging plate (not shown) is attached to the engaging bolt 8 via a fixing tool such as a nut 9 and indirectly engages with an engaging portion on the vending machine main body side, for example.
[0014]
Reference numeral 10 denotes a lock handle which is slidably fitted into the handle case 1 via the guide tube 5. The lock handle 10 fits into the fitting portion 2 of the handle case 1 and has a slightly T-shaped handle portion 11. And a tubular portion 12 connected to the handle portion 11. The lock handle 10 is also formed to have an arbitrary sectional shape corresponding to the sectional shape of the fitting portion 2 of the handle case 1.
[0015]
Reference numeral 13 denotes a spring interposed between the outer surface of the rear end of the tubular portion 12 of the lock 10 and the inner surface of the rear wall of the guide tube 5. The spring 13 constantly biases the lock 10 outwardly of the handle case 1. Have been. Although not particularly shown, a drive cam is rotatably mounted behind the lock handle, and a lock piece is engaged with the drive cam.
[0016]
Reference numeral 18 denotes a through hole for a pull-out preventing piece formed at a front portion of the cylindrical portion 12 of the lock handle 10 at a required interval. The through-holes 18 for removal prevention pieces are formed so as to be opposed to each other in the radial direction of the cylindrical portion 12 by two in total. In the present embodiment, one of the through-holes on one side (see FIG. 2). In this case, the upper left side through-hole) is formed larger than the other through-holes in consideration of the thickness of the legs of the removal prevention piece described later.
[0017]
Projections 19 are formed on the front outer wall of the tubular portion 12 so as to be located before and after the through hole 18 for removal prevention piece, and engage with or engage with the engagement notches 7 of the guide cylinder 5. Department. 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 pull-out preventing piece formed on the projection portion 19 of the tubular portion 12 of the lock handle 10. The fitting support portion 20 is thinner than the projection portion 19 and has a central portion. Is formed with a through hole, in this embodiment, a female screw hole 21 for a fixture. The outer wall surface of the fitting support 20 is flat.
[0019]
As shown in FIG. 2, reference numeral 22 denotes a protrusion or a long groove-shaped engaging member which is formed so as to protrude from the inner wall of the cylindrical portion 12 of the lock handle 10 and engages with an engaged portion of a stopper member for removal prevention piece described later. It is a joint. In this embodiment, the engaging portions 22 are a plurality of (four in total) ridges formed in the axial direction of the cylindrical portion 12.
[0020]
A cylinder lock 25 is detachably fitted to the lock handle 10, and a key 26 is inserted into the cylinder lock 25. As shown in FIGS. 2 and 4, 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 except the flat surfaces 27, 27. . The cylinder lock 25 is provided with a drive shaft 29 which is turned by operation of the key 26 and is fitted into a fitting hole of the drive cam.
[0021]
Reference numeral 30 denotes a stopper for a removal prevention piece mounted on the outer peripheral wall of the cylinder lock 25. In this embodiment, the stopper member 30 for removal prevention piece is formed in a cylindrical shape, and is screwed to the cylinder lock 25.
[0022]
As shown in FIGS. 2 and 4, the stopper member 30 for removal prevention is provided with a long groove-shaped engaged portion 31 which engages with the ridge engaging portion 22 of the lock 10 on the outer peripheral wall. On the other hand, there is provided a female screw 32 to be screwed with the male screw 28 of the cylinder lock 25 at an appropriate position on the inner peripheral wall.
[0023]
Reference numeral 40 designates a leg 41 in a gap 35 formed between the flat surface 27 of the cylinder lock 25 and the inner wall surface 36 of the cylindrical portion of the lock handle 10. Are L-shaped or U-shaped removal prevention pieces to be inserted respectively. In this embodiment, the pull-out preventing piece 40 is formed in a U-shape as shown in FIGS. 2 to 4 and 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. It comprises a locking portion 42 and the pair of legs 41, 41 extending from the locking portion 42 in a direction orthogonal to the locking portion 42. A locking through hole 44 for a fixing tool 43 is formed in the center of the locking portion 42. The locking through hole 44 for the fixing tool coincides with the female screw hole 21 for the fixing tool described above.
[0024]
The removal prevention piece 40 has a removal prevention function in which the leg 41 abuts on the peripheral end surface 33 of the stopper piece 30 in a state where the leg 41 crosses the stopper piece 30 for the removal prevention piece. Then, the thickness of one leg (upper leg based on FIG. 2) 41 is thicker than the locking portion 42, and has a function of preventing deformation as the press contact portion 45. That is, at least one of the leg portions 41 of the removal prevention piece 40 is formed in a mountain-shaped thickness, and when the removal prevention piece 40 is inserted into the through hole 18 of the lock 10, the thick portion (the pressure contact portion) is formed. The outer wall surface 45a of the lock 45 makes line or surface contact with the inner wall surface 36 of the tubular portion 12 of the lock handle 10.
[0025]
In the above configuration, first, the key 26 is rotated in the unlocking direction, and the lock handle 10 protrudes from the guide cylinder 5 by a predetermined amount 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 tube 5 is not provided, the lock handle 10 directly protrudes from the handle case 1.
[0026]
Therefore, when the cylinder lock 25 is to be replaced, the fastener 43 is first loosened and removed from the female screw hole 21 of the fitting support part 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 stopper member 30 for the removal prevention piece of the cylinder lock 25 is released from the removal prevention piece 40, and the cylinder lock 25 can be pulled out from the lock handle 10 via the key 26. In this case, the stopper member 30 for removal prevention piece is pulled out from the lock handle 10 together with the cylinder lock 25 as shown in FIG.
[0027]
By the way, in the case where 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 tool 43, for example, a thief is When a thin long plate piece is inserted into the key hole of the above, and it is attempted to rotate in the circumferential direction as much as possible, a strong force is applied to the legs 41, 41 of the removal prevention piece 40 from the cylinder lock 25 side.
[0028]
However, the outer wall surface 45a of the thick portion (pressure contact portion) 45 of at least one leg portion 41 of the removal prevention piece 40 inserted into the gaps 35, 35 and the inner wall surface 36 of the tubular portion 12 of the lock 10 are Since there is a line or surface contact relationship, the leg 41 of the pull-out preventing piece 40 is not easily deformed.
[0029]
That is, even if a deformation (pressure contact) force in the circumferential direction is applied to one leg 41 of the removal prevention piece 40 from the flat surface 27 side of the cylinder lock 25, the one leg 41 of the removal prevention piece 40 is It comes into pressure contact with the inner wall surface 36 of the cylindrical portion 12 in a line or surface contact state. Therefore, at least one of the leg portions 41 of the pull-out preventing piece 40 does not expand and displace, so that the cylinder lock 25 does not rotate in the circumferential direction.
[0030]
When the pressing force acts on the stopper 30, the stopper 30 itself, which is engaged with the engaging portion 22 of the tubular portion 12 of the lock 10, also prevents the cylinder lock 25 from rotating. Further, even when the cylinder lock 25 is to be pulled out from the lock handle 10, the legs 41, 41 of the pull-out preventing piece 40 abut on the peripheral end surface 33 of the stopper member 30 for screw connection with the cylinder lock 25. Therefore, the cylinder lock 25 cannot be easily pulled out.
[0031]
By the way, it has been described that the shape of the leg portion 41 of the removal prevention piece 40 may be L-shaped or U-shaped, but if the shape of the leg portion 41 of the removal prevention piece 40 is Not only the thick part (pressure contact part) 45 may be formed on one leg part 41 (upper or lower leg part) as in the embodiment, but also both opposing leg parts 41, 41 may be formed. A thick part (pressure contact part) 45 may be formed. The shape of the thick portion (pressure contact portion) 45 may be a mountain shape, a horizontal shape, a wavy shape, or the like. In short, it is only necessary that the outer wall surface of the thick leg portion 41 can be pressed against the inner wall surface 36 of the cylindrical portion 12 of the cylinder lock 25.
[0032]
[Different embodiments]
Next, different embodiments of the present invention will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and duplicate description will be omitted.
[0033]
The main difference between the second embodiment of the present invention shown in FIGS. 8 to 11 and the first embodiment is that both the removal prevention and rotation prevention of the cylinder lock 25A is achieved only by the removal prevention piece 40A. The point is that it was configured to be able to obtain. As a result, the form of the cylinder lock 25A of the second embodiment is different from that of the cylinder lock 25 of the first embodiment, and the cylinder lock 25A does not necessarily have a flat surface or a male screw, but has the leg portion 41A of the removal prevention piece 40A. , 41A engage at least one horizontal engaging groove 49, and a gap 35A is formed between the engaging groove 49 and the inner wall surface 36A of the cylindrical portion 12A of the lock 10A.
[0034]
That is, a pair of engaging grooves 49, 49 are formed in the small-diameter outer cylinder portion 51 connected to the large-diameter annular portion 50 of the cylinder lock 25A in a direction intersecting the axial direction of the cylinder lock 25A. The legs 41A, 41A of the removal prevention piece 40A, preferably having a U-shaped cross section, are engaged with the engagement grooves 49, 49 via the gap 35A. On the outer wall surface side of the upper and lower leg portions 41A, 41A, a mountain-shaped thick portion (press-contact portion) 45A that presses against the inner wall surface 36A of the tubular portion 12A of the lock 10A is formed. Also in this embodiment, the shape of the thick portion (pressure contact portion) 45A may be a mountain shape, a horizontal shape, a wavy shape, or the like. The external form of the cylinder lock 25A is distinguished into a large-diameter annular portion 50 and a small-diameter outer cylindrical portion 51 for convenience, but the annular portion 50 is also a part of the outer cylindrical portion 51 in terms of configuration.
[0035]
Therefore, in this embodiment, the number of parts is reduced (the need for a cylindrical stopper that is screwed to the cylinder lock 25A as in the first embodiment is unnecessary), and the cylinder lock 25A is prevented from coming off with only the removal prevention piece 40A. Both effects of rotation prevention can be obtained.
[0036]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) In the first embodiment, a stopper member for a lock member which is screwed integrally with a screw portion of a cylinder lock and a lock member which is fixed to a cylindrical portion of a lock handle are combined. Therefore, the cylinder lock does not come off easily from the lock.
(2) Even if the cylinder lock is fully rotated in the circumferential direction, the removal prevention piece does not deform. That is, since the leg portions 41, 41A of the removal prevention pieces 40, 40A have thick portions (pressed portions), the thick portions (pressed portions) 45, 45A are formed of the tubular portions 12, 10A of the locks 10, 10A. Since the inner wall surfaces 36, 36A of the 12A are pressed against each other in a state of line-to-surface contact, they are not easily expanded and displaced, so that the cylinder locks 25, 25A do not rotate.
(3) In the second embodiment, the number of parts is reduced (there is no need for a cylindrical stopper that is screwed to the cylinder lock 25A as in the first embodiment), and only the removal prevention piece 40A is used. It is possible to obtain both effects of preventing the cylinder lock 25A from coming off and preventing rotation.
(4) A projection 19 is formed in the vicinity of the pull-out preventing piece fitting support portion 20 having the through hole 18 formed in the front portion of the cylindrical portion 12 of the lock handle 10, and the projection 19 is engaged. In the embodiment in which the guide tube 5 having the engagement notch 7 on the opening side peripheral wall portion is interposed between the handle case 1 and the cylinder lock, the lock handle 10 can be smoothly moved in the axial direction. While being guided, the guide cylinder having the engaging bolt 8 can be rotated via 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 sectional view taken along the line 2-2 in FIG. 1;
FIG. 3 is an exploded perspective view of a partly cutaway.
FIG. 4 is an exploded perspective view of a main part.
FIG. 5 is an explanatory view of a state in which a stopper member for a removal prevention piece is screwed to the cylinder lock.
FIG. 6 is an explanatory view showing a relationship between a stopper member for a removal prevention piece and a removal prevention piece.
FIG. 7 is an explanatory view showing a connection relationship of main members.
FIG. 8 is an exploded perspective view of a partially cutout corresponding to FIG. 3 of the second embodiment.
FIG. 9 is a schematic longitudinal sectional explanatory view corresponding to FIG. 2 of the second embodiment.
FIG. 10 is an exploded perspective view of a main part.
FIG. 11 is a schematic explanatory view of a main part.
[Explanation of symbols]
1: Handle case, 5: Guide cylinder, 10, 10A: Lock handle,
12, 12A: cylindrical portion, 18: through hole, 19: protrusion, 20: fitting support portion,
25, 25A: cylinder lock, 27: flat surface, 28: male screw,
30: stopper member for removal prevention piece, 33: peripheral end face, 35, 35A: gap,
36, 36A ... inner wall surface, 40, 40A ... removal prevention piece, 41, 41A ... leg,
43: fixing device, 45, 45A: press-contact portion, 45a: outer wall surface (of press-contact portion)
49: engagement groove, 50: annular portion, 51: outer cylinder portion.

Claims

A handle case 1 of a lock fixed to the opening / closing door, a lock handle 10 which is housed in the handle case 1 and is always urged to the outside of the handle case 1 by a spring 13, and is detached from the tubular portion 12 of the lock handle. A cylinder lock 25 to be fitted to the cylinder lock; a cylindrical stopper member 30 for a pull-out preventing piece to be screwed into a male screw 28 of the cylinder lock; a through-hole 18 formed in a front portion of the cylindrical portion 12; A pull-out preventing piece 40 into which a leg 41 is inserted into a gap 35 formed between an inner wall surface 36 of the cylindrical portion 12 of the lock handle 10 and the flat surface 27 of the cylinder lock 25. A fixing tool 43 for fixing the pull-out preventing piece 40 to the tubular portion 12 in a state where the leg 41 intersects with the stopper piece 30 for the pull-out preventing piece is provided. Line and the inner wall surface 36 of the cylindrical portion 12 Fixing structure of the lock handle and the cylinder lock of the lock of the pressure contact portion 45 which contacts are formed.

2. The structure according to claim 1, wherein the press contact portion is formed in a mountain shape.

A lock handle case 1 fixed to the opening / closing door, a lock handle 10A which is provided in the handle case 1 and is always urged outward by the spring 13 to the outside of the handle case 1, and a lock handle cylindrical portion 12A which is detached. A cylinder lock 25A to be fitted as possible, an engagement groove 49 formed in the outer cylinder part 51 of the cylinder lock so as to intersect with the axial direction of the cylinder lock, and a cylinder lock 25A formed in the front part of the cylindrical part 12A. A pull-out preventing piece 40A into which the leg 41A is inserted into a gap 35A formed between the through hole 18 and the inner wall surface 36A of the cylindrical portion 12A of the lock handle 10A and the engagement groove 49 of the cylinder lock 25A. A fixing member 43 for fixing the removal prevention piece 40A to the cylindrical portion 12A in a state where the leg 41A of the removal prevention piece 40A is engaged with the engagement groove 49, and a locking handle is provided on the leg 41A. 10A cylindrical portion 12 Fixing structure of the lock handle and the cylinder lock of the lock of the inner wall surface 36A and a line to the pressure contact portion 45A which surface contact is formed.

In claim 3, the pull-out preventing piece 40A is formed in a U-shape, and the opposing legs 41A, 41A are in pressure contact with the inner wall surface 36A of the tubular portion 12A of the lock 10A in line or surface contact. A structure for fixing a lock handle of a lock and a cylinder lock, wherein each of the portions has a portion 45A.