JP4128375B2 - Locking and unlocking device - Google Patents

Locking and unlocking device Download PDF

Info

Publication number
JP4128375B2
JP4128375B2 JP2002049930A JP2002049930A JP4128375B2 JP 4128375 B2 JP4128375 B2 JP 4128375B2 JP 2002049930 A JP2002049930 A JP 2002049930A JP 2002049930 A JP2002049930 A JP 2002049930A JP 4128375 B2 JP4128375 B2 JP 4128375B2
Authority
JP
Japan
Prior art keywords
key
inner cylinder
cylinder
hole
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002049930A
Other languages
Japanese (ja)
Other versions
JP2003247364A (en
Inventor
直樹 前田
Original Assignee
美和ロック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 美和ロック株式会社 filed Critical 美和ロック株式会社
Priority to JP2002049930A priority Critical patent/JP4128375B2/en
Publication of JP2003247364A publication Critical patent/JP2003247364A/en
Application granted granted Critical
Publication of JP4128375B2 publication Critical patent/JP4128375B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Lock And Its Accessories (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、シリンダ錠と、このシリンダ錠に対して施解錠操作を行う合カギと具備する施解錠装置の改良に関するものである。
【0002】
【従来の技術】
近年、特殊な工具を用いることでカギ穴内のタンブラーを操作して不正解錠を行うピッキングと称される犯罪が多発している。そこで、このような不正解錠に対して、施解錠装置のシリンダ錠部分をピッキング困難なものとすることで、不正解錠を防止する対策が採られ始めている。
【0003】
この種のシリンダ錠としては、図8,9に示すように、例えばすり鉢状の凹部、所謂、ディンプル71を表裏面の所定の位置に設けた合カギ73を用いるものがある。このシリンダ錠は、カギ穴に挿入される合カギ73のディンプル71に応じてタンブラーピンを移動させ、内筒に外挿した外筒との境界部にタンブラーピンのシアラインを一致させて、内筒を外筒に対し回転規制解除して解錠を行う。
【0004】
図11に示すように、このシリンダ錠75は、合カギ73を抜きとった状態でタンブラーピン77がスプリング79に押され、外筒81と内筒83を貫いているため、内筒83を回転させることができない。一方、図10に示すように、合カギ73をカギ穴76に差し込むと、所定箇所のタンブラーピン77が後退し、タンブラーピン77のシアライン85が外筒81と内筒83との境界部87にそろい、内筒83を回転させることができる。
【0005】
【発明が解決しようとする課題】
しかしながら、上記したディンプルタイプのシリンダ錠は、カギ穴に挿入した合カギのディンプルに応じて所定箇所のタンブラーピンを後退させ、タンブラーピンのシアラインを外筒と内筒との境界部に一致させて、内筒の回動規制を解除する点では従来の合カギの側縁に山谷を形成させる構造によるピンシリンダ機構を踏襲したものとなっている。
【0006】
そして、上記シリンダ錠では、合カギのディンプル形成面に垂直な方向でタンブラーピンを当接させるため、タンブラーピンが当接する方向の距離を大きく確保することができず、カギ違いを増やすことが困難となる。つまり、タンブラーピンが当接する方向の距離が、合カギの厚みに依存していた。これに対し、合カギの厚みを厚くすれば、カギ穴が大きくなり、不正解錠をより容易にさせることとなった。
【0007】
また、上記構造のシリンダ錠では、略板状に形成される合カギを用いる構成であり、カギ穴の形状を略スリット状に形成した構造であることから、スリットの両端部分を利用するなど、シリンダ錠に対しての回転操作など不正な解錠操作を可能とするような構造となっており、合カギの形状およびカギ穴の形状についても、ピッキング等の不正な操作への対処が望まれている。
【0008】
本発明は上記状況に鑑みてなされたもので、ピッキング等の不正解錠に対する抵抗力を向上させることが可能となる合カギおよびシリンダ錠の構造をもった施解錠装置を提供する。また、不正な解錠操作等、合カギを用いない解錠操作を行った場合に、解錠を不可能とし、防犯性の向上が図られた施解錠装置を得ることを目的としている。
【0009】
【課題を解決するための手段】
次に、上記の課題を解決するための手段を、実施の形態に対応する図面を参照して説明する。
この発明の請求項1記載の施解錠装置1は、外筒7と、該外筒7に対し回動自在な内筒11とを備え、前記外筒7と内筒11とに亘ってタンブラーピン17が貫通配置されるシリンダ錠3に、前記内筒11に形成されるカギ穴13に合カギ51を挿入することにより、前記タンブラーピン17を前記カギ穴14から半径方向所定位置に移動させ、前記外筒7と内筒11との境界部27に前記タンブラーピン17のシアライン25を一致させることで前記内筒7の回動規制を解除する施解錠装置1であって、
円形穴状に形成されるカギ穴13を備えた内筒11と、
前記カギ穴13に挿入される挿入部55が断面円形が連続する円柱状に形成され、該挿入部55の外周面に前記タンブラーピン17に対応して深さを組み合わされる複数の凹部59が形成される合カギ51と、
前記内筒11のカギ穴13内の所定位置に配置され、該カギ穴13内方向に突出する係合凸部33と、
前記合カギ51の外周面に形成され、前記係合凸部33に係合する係合凹部61と、
を具備するとともに、
前記内筒11には、半径方向に挿通穴29が形成され、該挿通穴29に先端が前記係合凸部33となる摺動片31が前記内筒11の半径方向に摺動自在に設けられ、
前記外筒7の内周面には、前記挿通穴29に対応して空間部35が形成され、該空間部35内に、前記摺動片31の基端に当接し前記係合凸部33をカギ穴13内に突出状態で支持するとともに、押圧力によって元の形状に復元せず圧潰する支持片37が設けられており、
前記合カギ51による操作時には、前記シアライン25が一致するとともに、前記係合凸部33と前記係合凹部61とが嵌合し、前記カギ穴13内部の形状と前記合カギ挿入部55の形状とが合致し、前記合カギ51の回動操作が前記内筒11に伝達され、
前記カギ穴13に対して正しく合う形状でない物が挿入された際には、前記係合凸部33が押圧されて、前記摺動片31の摺動により支持片37が圧潰し、前記内筒11と前記外筒7との境界部分27に、前記摺動片31が位置して、前記内筒11の回動を不能とすることを特徴とする。
【0010】
この施解錠装置1によれば、合カギ51の挿入部55の形状を断面円形な円柱状とし、カギ穴13の形状を円形穴としたので、このシリンダ錠3に対して不正な解錠操作を行おうとカギ穴13に工具などを係止しようとしても、掛かる形状でないことから、内筒11を回動させる操作を行うことが不可能であり、これにより防犯性を得られる。
また、この施解錠装置1によれば、カギ穴13内に、不正な解錠操作を行おうとして工具などを挿入した際に、係合凸部33が押圧されると、挿通穴29に沿って摺動片31が外筒7の空間部35へと後退移動することとなり、空間部35内では摺動片31を支持していた支持片37が元の形状に復元せず圧潰される。これにより摺動片31は、外筒7と内筒11との境界部27に位置することとなり、内筒11を外筒7に対して回動させることが不可能となり、すなわち不正な解錠操作を不能とする。
なお、前記支持片37を、厚みの薄い円形パイプより構成することで、31摺動片が後退移動した際には、容易に圧潰され、不正な解錠操作に対する解錠不能状態への移行を確実に行うことが可能となる。
【0011】
請求項2記載の施解錠装置は、前記合カギ51の挿入部55は、軸方向に段部を介して外径が異なり、多段に形成されて、細径部57を備えるとともに、先端が円錐状に形成されることを特徴とする。
【0012】
この施解錠装置1によれば、合カギ51の形状を凹部(ディンプル)59のみではなく、多段に形成される細径部57を形成して、これら細径部57と凹部59との組み合わせでカギ違いを構成させることが可能となる。
【0013】
請求項3記載の施解錠装置は、前記係合凸部33は、前記内筒11の軸線方向に平行とされる長尺な突条形状に形成され、前記係合凹部61は、前記挿入部55の軸線方向に平行とされる長尺な溝条に形成されることを特徴とする。
【0014】
この施解錠装置によれば、係合凸部33と係合凹部61との係合状態が、軸線方向に長尺となり、係合凹部61側である合カギ51の回動操作を確実に係合凸部33側である内筒11に伝達でき、合カギ51による内筒11の施解錠の操作が行えることとなる。
【0019】
【発明の実施の形態】
図1は本発明による施解錠装置の実施の形態を示す側断面図、図2は同施解錠装置のシリンダ錠の側断面図、図3は同施解錠装置のシリンダ錠の正面図である。
【0020】
図1に示すように、本発明の施解錠装置1を構成するシリンダ錠3は、外装筒5の内側に、外筒7を相対回転不能に装着する。外装筒5は、基端5aが図示しない錠機構本体側の錠箱に固定され、先端側半部5bが扉面より突出し、さらに外周を化粧リング9などにて覆われる。
外筒7の内部には、カギ穴13を有した内筒11を回転自在に内設している。外筒7と内筒11とには、両者に亘って半径方向に貫通穴15を穿設している。この貫通穴15は、一端がカギ穴13に開口し、他端が外筒7の外周面に開口している。
【0021】
貫通穴15は、カギ穴13の軸線方向に沿って複数配設されるとともに、図4に示すように、カギ穴13の軸線に対して約45°傾斜した左右の各位置にも配設され、それぞれカギ穴13の軸線方向に沿って複数配設され、すなわち本実施の形態では、貫通穴15がカギ穴13の軸線方向に対し3方向となっている。
【0022】
また、貫通穴15は、カギ穴13内に開口する先端側が小径穴となり、外筒7の外周面に開口する後端側が大径穴となっている。この小径穴と大径穴との境は、内筒11内で段部16となっている。
【0023】
それぞれの貫通穴15には、タンブラーピン17を内設している。
タンブラーピン17は、外筒7を外装筒5に装着する前に、予め貫通穴15に装着される。タンブラーピン17は、先端側となる段付ピン18と、後端側となるドライバーピン19とからなる。段付ピン18は、後端側にフランジ状の角部18aを有し、先端側が円錐状に形成される。ドライバーピン19は、後端側に凹部19aを有し、段付ピン18と同軸上となって段付ピン18の後端面に当接する。
【0024】
タンブラーピン17は、段付ピン18の角部18aが、貫通穴15の段部16に当接することで、段付ピン18の先端が所定寸法、カギ穴13に突出した状態で、それ以上の突出が止められる(図2参照)。
なお、外筒7の外周面には、湾曲した薄板状の蓋材21が取り付けられ、外筒7の外周面に位置する貫通穴15の開口が塞がれる。
【0025】
蓋材21とドライバーピン19の凹部19aとの間には、圧縮したスプリング23を配設している。従って、タンブラーピン17は、通常時(合カギの非挿入時(図2参照))、先端をカギ穴13に突出させた状態となり、先端が押圧されることでスプリング23の付勢力に抗して貫通穴15内へ後退するようになっている。タンブラーピン17は、段付ピン18とドライバーピン19とに二分割してあり、その境が所謂シアライン25となる。このシアライン25は、それぞれのタンブラーピン17において、先端から異なる位置で設定される。すなわち、内筒11は、各タンブラーピン17のシアライン25が外筒7との境界部27に全て一致しなければ回動規制が解除されない。
【0026】
また、内筒11のカギ穴13の奥方位置には、半径方向に貫通した互いに対向する一対の挿通穴29が形成される。
各挿通穴29は内筒11の軸線方向に長い長穴よりなり、内筒11の軸芯を中心に互いが対向して配設される摺動片31が嵌挿される。摺動片31は、略矩形板状に形成され、挿通穴29内を内筒11の径方向に摺動自在とされる。摺動片31の長さは、内筒11の厚さよりやや長尺に形成される。また、摺動片31の先端は、曲面より形成され略かまぼこ状となり係合凸部33とされる。摺動片31が内筒11に嵌挿されて取り付けられた状態で、先端の係合凸部33がカギ穴13内にて突条状に突出する。また摺動片31の基端は内筒11の外周面と略面一となる。
【0027】
内筒11の各挿通穴29に対応して、外筒7の内周面における奥方の対向位置には空間部35が形成される。空間部35は、外筒7の軸線方向に沿う略凹溝状に形成される。
この凹溝状の空間部35には、支持片37が嵌入される。この支持片37は、圧潰することが可能な素材、好ましくは外力により変形し、元の形状に復元しない材質、すなわち可塑性のある材質よりなり、本実施の形態では円形パイプより構成され、好ましくは、薄厚なパイプよりなる。この支持片37は空間部35内に位置し、外筒7内周面より突出せず、内筒11の摺動片31基端に当接する。
【0028】
また、内筒11と外筒7との境界部分において、タンブラーピン17の配設される位置に対して対向した位置(図中下部)には、外筒7に対する内筒11の回転を、一時的に保持し、かつ、外筒7に対して内筒11を回転させた際のクリック感を得るための係止部39が配設される。係止部39は、略杆状の係止部材41と、この係止部材41を外筒7内周面から内筒11外周面に付勢させるバネなどの付勢部材43で構成される。内筒11の外周面には軸線方向に沿う溝45が形成され、この溝45に係止部材41がかかり、外筒7に対する内筒11の回転の一時的な回転停止を行う。
【0029】
なお、内筒11の奥方先端には、図示しない錠機構に連動連結される連結ダルマ47が連結される。この連結ダルマ47は、外筒7の奥方端部において回動自在に支持されている。
【0030】
次に、この施解錠装置1に用いられる合カギ51について説明する。
この合カギ51は、図5に示すように、つまみ部53と挿入部55とで構成される。
つまみ部53は、略矩形板状に形成される。挿入部55は、断面円形が連続する円柱状に形成される。本実施の形態の挿入部55は、図5に示すように、中途部が細径となり、すなわち段部を介して外径が異なり、多段に形成されて、細径部57を備え、また、先端が円錐状に形成される。
【0031】
挿入部55の外周面には、タンブラーピン17を貫通穴15内へ後退させ、軸線方向所定位置に配置させる略擂鉢状の凹部、所謂、ディンプル59が形成される。このディンプル59は、上記したようにそれぞれ異なるシアライン25の位置を、境界部27に一致させる深さを有する。
なお、このディンプル59は、挿入部55の外径とも組み合わされ、すなわち、この挿入部55における細径部57の径や、ディンプル59の深さでカギ違いを実現している。
【0032】
また、この合カギ51の挿入部55の先端部における半径方向の外側に位置する両側面には、図6に示すように、係合凹部61が設けられる。この係合凹部61は、挿入部55の軸線方向に沿って長尺とされる略U字状の凹溝よりなる。本実施の形態では、これら係合凹部61は、つまみ部53の板面に対して直交する方向に配置される。そして、内筒11のカギ穴13内における上記した係合凸部33と互いに嵌め合うように構成され、すなわち係合凸部33の外形と係合凹部61の溝形状とは略同形に設定される。
【0033】
次に、このように構成された施解錠装置1の動作を説明する。
図2および図3に示すように、合カギ51の非挿入時には、各タンブラーピン17はスプリング23によって付勢され、先端をカギ穴13内に突出させている。また、それぞれのタンブラーピン17のシアライン25は、不連続となり、その結果ドライバーピン19が外筒7と内筒11との境界部27に配置している。このため、内筒11は、外筒7に対して回動が規制されている。
【0034】
このシリンダ錠3に対して図5に示す正規な合カギ51が挿入されると、合カギ51先端の係合凹部61がカギ穴13内の係合凸部33と係合しあう。また、同時に、それぞれのタンブラーピン17が、合カギ61に設けた所定のディンプル59に落ち込み、またはタンブラーピン17が挿入部55の細径部57等の外周面にて当接し、貫通穴15の軸線方向所定位置に移動する。これにより、各タンブラーピン17のシアライン25が図1に示すように一直線上に連続し、外筒7と内筒11との境界部27に一致する。すなわち、内筒11は、回動規制が解除された状態となる。
【0035】
そして、合カギ51を回動させると、係合凹部61と係合凸部33とが軸線方向にて互いに周方向への噛み合いとなり、回動方向の操作力を伝達させ、また摺動片31基端と支持片37との境で互いに離れるとともに、シアライン25を境にタンブラーピン17が分離し、内筒11が外筒7に対して回動し、すなわち解錠となる。
【0036】
なお、合カギ51の挿入部55とカギ穴13とは、その先端部において、合カギ51の外径とカギ穴13の内径が嵌合状態であり、かつ係合凹部61と係合凸部33とが嵌合状態であることから、カギ穴13内部の形状と合カギ挿入部55の形状とが合致することとなって、合カギ51の回動操作が内筒11に伝わり、内筒11の回動が可能となる。
【0037】
ここで、例えば、この施解錠装置1を不正に解錠させようと、シリンダ錠3の内筒11に対してドライバーなどの工具を使った場合、カギ穴13内に、工具等を挿入することとなるが、このカギ穴13に対して正しく合う形状でないことから、係合凸部33に対して噛み合うことができず、これにより係合凸部33を押圧することとなる。すると、係合凸部33を先端とする摺動片31が、内筒11の挿通穴29を半径方向外側に摺動移動し、基端に当接している支持片37を押圧することとなる。支持片37は、その押圧力により、図7に示すように、変形し、すなわち圧潰して、摺動片31が挿通穴29を摺動後退し、その基端が外筒7の空間部35内に移動することとなる。これにより、内筒11と外筒7との境界部分27に、摺動片31が位置することになり、無理に回動を行おうとしても、内筒11は回動が不能となり、すなわち解錠操作が不可能となる。
【0038】
従ってこのように構成された施解錠装置1では、シリンダ錠3の内筒11を外筒7に対して回動するには、各タンブラーピン17を貫通穴15の軸線方向所定位置に移動させる合カギ51をカギ穴13内に挿入し、各タンブラーピン17のシアライン25を境界部27に一致させなければならないとともに、カギ穴13内において、カギ穴13形状と合カギ51の挿入部55の外形が合致し、係合凹部61と係合凸部33とが互いに嵌合する構成とされなければならない。
【0039】
これにより、平板形状の合カギを用い、シリンダ錠の内筒を回動させる従来のような施解錠装置に比べ、シリンダ錠3のカギ穴13の形状を円形としたことにより、カギ穴13に対しての不正な操作、すなわち内筒11を回動させようとしても、回動方向に掛かる形状ではないことから、この内筒11を回動させることが構造上不可能であり、防犯性が高い施解錠装置を得られることとなる。そして特に、従来の平板形状の合カギに比べ、合カギ51の挿入部55の形状を円柱状としたことで、ディンプル59の深さを多段に構成することができ、かつ、挿入部55の外径を細径部57などと組み合わせることが可能となるので、カギ違いの組合せを増大させることが可能となる。
【0040】
また、上記施解錠装置1によれば、内筒11内を径方向に摺動可能な摺動片31を設け、この摺動片31の外周側の外筒7に圧潰可能な支持片37を設けた構成としたことで、合カギ51以外の工具等をカギ穴13内に挿入することにより、摺動片31が外筒7と内筒11との境界部27へ移動してしまい、これにより内筒11を外筒7に対して回動不能としてしまうことから、不正な解錠操作を合カギ51以外の物等で行おうとするとシリンダ錠3が操作不能となり、すなわち施錠状態を維持して使用不可能な状態とすることができ、不正に解錠する犯罪を未然に防ぐことができる。
【0041】
なお、上述した実施の形態では、合カギ51の構造として、細径部57を挿入部55の略中途部分に設けた構成としたが、この細径部57の形成位置は、挿入部55に形成されるディンプル59とともに、その他の位置に形成してもよく、この細径部57およびディンプル59の形成位置や、細径部57の径など、種々の組合せとすることで、カギ違いを増やすことが可能となる。
【0042】
また、シリンダ錠3のカギ穴13内に配置される係合凸部33を有した摺動片31の位置を、カギ穴13の奥方に位置させ、この係合凸部33に対応する合カギ挿入部55の係合凹部61を挿入部55の先端に配置させる構成として述べたが、カギ穴13内の中途部分に係合凸部33を配置し、合カギ挿入部55の中途部分に係合凹部61を設けるなど、その配置位置については他の位置として構成してもよい。
【0043】
【発明の効果】
以上説明したように本発明による施解錠装置では、合カギの挿入部の形状を断面円形な円柱状とし、カギ穴の形状を円形穴としたので、このシリンダ錠に対して不正な解錠操作を行おうとカギ穴に工具などを係止しようとしても、回動方向に掛かる形状でないことから、内筒を回動させる操作を行うことが不可能であり、防犯性が高い施解錠装置を得られることとなる。そして、この施解錠装置では、シリンダ錠の内筒を外筒に対して回動するには、各タンブラーピンを軸線方向所定位置に移動させる合カギをカギ穴内に挿入し、各タンブラーピンのシアラインを境界部に一致させなければならないとともに、カギ穴内において、カギ穴形状と合カギの挿入部の外形が合致し、係合凹部と係合凸部とが互いに嵌合する構成とされなければならず、合カギの複製などが容易に行えず、このことからも防犯性が高い施解錠装置を得られることとなる。
【0044】
また、従来の平板形状の合カギに比べ、合カギの挿入部の形状が円柱状であることから、凹部の深さを多段に構成することができ、かつ、挿入部の外径を細径部などと組み合わせることが可能となるので、カギ違いの組合せを増大させることが可能となる。
【0045】
さらに、係合凸部と係合凹部とを、軸線方向に長尺な構成とすることで、係合凸部と係合凹部との係合状態が、周方向での噛み合いが長尺となり、係合凹部側である合カギの回動操作を確実に係合凸部側である内筒に伝達でき、合カギによる内筒の施解錠の操作が行えることとなる。
【0046】
また、内筒内を径方向に摺動可能な摺動片を設け、この摺動片の外周側の外筒に圧潰可能な支持片を設けた構成としたことで、合カギ以外の工具等をカギ穴内に挿入することにより、摺動片が外筒と内筒との境界部へ移動してしまい、これにより内筒を外筒に対して回動不能としてしまうことから、不正な解錠操作を合カギ以外の物等で行おうとするとシリンダ錠が操作不能となり、すなわち施錠状態を維持して使用不可能な状態とすることができ、不正に解錠する犯罪を未然に防ぐことができる。
【図面の簡単な説明】
【図1】本発明による施解錠装置の実施の形態を示す側断面図である。
【図2】同施解錠装置のシリンダ錠の側断面図である。
【図3】同施解錠装置のシリンダ錠の正面図である。
【図4】同施解錠装置のシリンダ錠の正断面図である。
【図5】同施解錠装置の合カギを示す側面図である。
【図6】同施解錠装置の合カギを示す正面図である。
【図7】同施解錠装置の操作状態を示す正断面図である。
【図8】従来の施解錠装置の合カギを示す斜視図である。
【図9】同合カギの断面図である。
【図10】従来の施解錠装置のシリンダ錠を示す断面図である。
【図11】従来の施解錠装置のシリンダ錠を示す断面図である。
【符号の説明】
1…施解錠装置
3…シリンダ錠
7…外筒
11…内筒
13…カギ穴
17…タンブラーピン
25…シアライン
27…境界部
29…挿通穴
31…摺動片
33…係合凸部
35…空間部
37…支持片
51…合カギ
55…挿入部
57…細径部
59…凹部(ディンプル)
61…係合凹部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a locking / unlocking device including a cylinder lock and a key for performing a locking / unlocking operation on the cylinder lock.
[0002]
[Prior art]
In recent years, a crime called picking, in which unauthorized unlocking is performed by operating a tumbler in a keyhole by using a special tool, has frequently occurred. In view of this, in order to prevent such unauthorized unlocking, measures are being taken to prevent unauthorized unlocking by making it difficult to pick the cylinder lock portion of the locking / unlocking device.
[0003]
As this type of cylinder lock, as shown in FIGS. 8 and 9, for example, there is one using a mortar-shaped recess, that is, a so-called dimple 71 provided with a key 73 provided at a predetermined position on the front and back surfaces. The cylinder lock moves the tumbler pin in accordance with the dimple 71 of the fitting key 73 inserted into the key hole, and aligns the shear line of the tumbler pin with the boundary portion with the outer cylinder that is externally inserted into the inner cylinder. Unlock the outer cylinder by releasing the rotation restriction.
[0004]
As shown in FIG. 11, the cylinder lock 75 rotates the inner cylinder 83 because the tumbler pin 77 is pushed by the spring 79 and the outer cylinder 81 and the inner cylinder 83 are penetrated with the key 73 removed. I can't let you. On the other hand, as shown in FIG. 10, when the fitting key 73 is inserted into the key hole 76, the tumbler pin 77 at a predetermined position is retracted, and the shear line 85 of the tumbler pin 77 is formed at the boundary portion 87 between the outer cylinder 81 and the inner cylinder 83. The inner cylinder 83 can be rotated.
[0005]
[Problems to be solved by the invention]
However, the above-described dimple-type cylinder lock has a tumbler pin at a predetermined position retracted according to the dimple of the key inserted in the key hole, and the shear line of the tumbler pin is made to coincide with the boundary between the outer cylinder and the inner cylinder. In the point of canceling the rotation restriction of the inner cylinder, the pin cylinder mechanism having a structure in which a valley is formed on the side edge of the conventional key is followed.
[0006]
In the above cylinder lock, the tumbler pins are brought into contact with each other in the direction perpendicular to the dimple formation surface of the key, so that it is difficult to secure a large distance in the direction in which the tumbler pins come into contact, and it is difficult to increase the difference in keys. It becomes. That is, the distance in the direction in which the tumbler pin comes into contact depends on the thickness of the key. On the other hand, if the thickness of the key is increased, the key hole becomes larger, which makes unauthorized unlocking easier.
[0007]
Moreover, in the cylinder lock of the above structure, it is a configuration using a joint key formed in a substantially plate shape, and since the shape of the key hole is formed in a substantially slit shape, both end portions of the slit are used, etc. It has a structure that allows unauthorized unlocking operations such as rotating operations on cylinder locks, and it is desirable to deal with unauthorized operations such as picking with respect to the shape of the key and the shape of the key hole. ing.
[0008]
The present invention has been made in view of the above circumstances, and provides a locking / unlocking device having a structure of a key and a cylinder lock that can improve resistance to illegal unlocking such as picking. Another object of the present invention is to obtain a locking / unlocking device in which unlocking is impossible when an unlocking operation such as an unauthorized unlocking operation is performed without using a key, and crime prevention is improved.
[0009]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The locking / unlocking device 1 according to claim 1 of the present invention includes an outer cylinder 7 and an inner cylinder 11 that is rotatable with respect to the outer cylinder 7, and the tumbler pin extends between the outer cylinder 7 and the inner cylinder 11. The tumbler pin 17 is moved from the key hole 14 to a predetermined position in the radial direction by inserting the key 51 into the key hole 13 formed in the inner cylinder 11 in the cylinder lock 3 through which the numeral 17 is disposed. The locking / unlocking device 1 releases the rotation restriction of the inner cylinder 7 by matching the shear line 25 of the tumbler pin 17 with the boundary portion 27 between the outer cylinder 7 and the inner cylinder 11,
An inner cylinder 11 having a keyhole 13 formed in a circular hole shape;
The insertion portion 55 to be inserted into the keyhole 13 is formed in a cylindrical shape having a circular cross section, and a plurality of recesses 59 whose depths are combined corresponding to the tumbler pins 17 are formed on the outer peripheral surface of the insertion portion 55. The key 51
An engaging convex portion 33 which is disposed at a predetermined position in the key hole 13 of the inner cylinder 11 and protrudes inwardly of the key hole 13;
An engagement recess 61 formed on the outer peripheral surface of the joint key 51 and engaged with the engagement protrusion 33;
And having
An insertion hole 29 is formed in the inner cylinder 11 in the radial direction, and a sliding piece 31 whose tip is the engagement convex portion 33 is provided in the insertion hole 29 so as to be slidable in the radial direction of the inner cylinder 11. And
A space portion 35 is formed on the inner peripheral surface of the outer cylinder 7 corresponding to the insertion hole 29, and contacts the proximal end of the sliding piece 31 in the space portion 35, and the engagement convex portion 33. Is provided in the keyhole 13 in a protruding state, and a support piece 37 that is crushed without being restored to its original shape by a pressing force is provided,
At the time of operation by the joint key 51, the shear line 25 is matched, and the engagement convex part 33 and the engagement concave part 61 are fitted, so that the shape inside the key hole 13 and the shape of the joint key insertion part 55 are fitted. And the rotation operation of the key 51 is transmitted to the inner cylinder 11,
When an object having a shape that does not properly fit in the keyhole 13 is inserted, the engagement convex portion 33 is pressed, and the support piece 37 is crushed by the sliding of the slide piece 31, and the inner cylinder The sliding piece 31 is positioned at a boundary portion 27 between the outer cylinder 7 and the outer cylinder 7 to make the inner cylinder 11 unrotatable.
[0010]
According to the locking / unlocking device 1, the shape of the insertion portion 55 of the key 51 is a circular column with a circular cross section, and the shape of the key hole 13 is a circular hole. Even if an attempt is made to lock a tool or the like in the key hole 13 to perform the operation, it is impossible to perform an operation of rotating the inner cylinder 11 because it is not a hooked shape, thereby obtaining crime prevention.
Further, according to this locking / unlocking device 1, when the engaging convex portion 33 is pressed when a tool or the like is inserted into the key hole 13 to perform an unauthorized unlocking operation, along the insertion hole 29. Thus, the sliding piece 31 moves backward to the space portion 35 of the outer cylinder 7, and the support piece 37 supporting the sliding piece 31 is crushed in the space portion 35 without being restored to the original shape. As a result, the sliding piece 31 is positioned at the boundary portion 27 between the outer cylinder 7 and the inner cylinder 11, and the inner cylinder 11 cannot be rotated with respect to the outer cylinder 7, that is, unauthorized unlocking. Disable operation.
The support piece 37 is formed of a thin circular pipe, so that when the 31 sliding piece moves backward, it is easily crushed and shifts to an unlockable state with respect to an unauthorized unlocking operation. It is possible to perform reliably.
[0011]
The locking / unlocking device according to claim 2, wherein the insertion portion 55 of the key 51 has an outer diameter that is different from each other through a step portion in the axial direction, is formed in multiple steps, includes a small diameter portion 57, and has a conical tip. It is formed in the shape.
[0012]
According to this locking / unlocking device 1, the shape of the key 51 is not limited to the recesses (dimples) 59, but the narrow diameter portions 57 formed in multiple stages are formed, and the combination of the narrow diameter portions 57 and the recesses 59 It is possible to configure key differences.
[0013]
The locking / unlocking device according to claim 3, wherein the engagement convex portion 33 is formed in a long ridge shape parallel to the axial direction of the inner cylinder 11, and the engagement concave portion 61 includes the insertion portion. It is characterized by being formed in a long groove that is parallel to the axial direction of 55.
[0014]
According to this locking / unlocking device, the engagement state of the engagement convex portion 33 and the engagement concave portion 61 is elongated in the axial direction, and the rotation operation of the joint key 51 on the engagement concave portion 61 side is reliably engaged. It can transmit to the inner cylinder 11 which is the joint convex part 33 side, and the operation of locking / unlocking the inner cylinder 11 by the joint key 51 can be performed.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
1 is a side sectional view showing an embodiment of the locking / unlocking device according to the present invention, FIG. 2 is a side sectional view of a cylinder lock of the locking / unlocking device, and FIG. 3 is a front view of the cylinder lock of the locking / unlocking device.
[0020]
As shown in FIG. 1, the cylinder lock 3 which comprises the locking / unlocking apparatus 1 of this invention mounts the outer cylinder 7 inside the exterior cylinder 5 so that relative rotation is impossible. The outer cylinder 5 has a base end 5a fixed to a lock box on the side of the lock mechanism main body (not shown), a front end side half portion 5b protruding from the door surface, and an outer periphery covered with a decorative ring 9 or the like.
Inside the outer cylinder 7, an inner cylinder 11 having a key hole 13 is rotatably provided. The outer cylinder 7 and the inner cylinder 11 are provided with through holes 15 in the radial direction across both. One end of the through hole 15 opens to the key hole 13, and the other end opens to the outer peripheral surface of the outer cylinder 7.
[0021]
A plurality of through-holes 15 are disposed along the axial direction of the key hole 13 and are also disposed at left and right positions inclined about 45 ° with respect to the axis of the key hole 13 as shown in FIG. In this embodiment, a plurality of through holes 15 are provided in three directions with respect to the axial direction of the key hole 13.
[0022]
Further, the through hole 15 has a small diameter hole at the front end side that opens into the key hole 13, and a large diameter hole at the rear end side that opens to the outer peripheral surface of the outer cylinder 7. The boundary between the small diameter hole and the large diameter hole is a step portion 16 in the inner cylinder 11.
[0023]
A tumbler pin 17 is provided in each through hole 15.
The tumbler pin 17 is attached to the through hole 15 in advance before attaching the outer cylinder 7 to the outer cylinder 5. The tumbler pin 17 includes a stepped pin 18 on the front end side and a driver pin 19 on the rear end side. The stepped pin 18 has a flange-shaped corner portion 18a on the rear end side, and the tip end side is formed in a conical shape. The driver pin 19 has a recess 19 a on the rear end side, and is coaxial with the stepped pin 18 and contacts the rear end surface of the stepped pin 18.
[0024]
The tumbler pin 17 has a corner 18a of the stepped pin 18 that abuts the step 16 of the through hole 15 so that the tip of the stepped pin 18 protrudes into the keyhole 13 with a predetermined size. The protrusion is stopped (see FIG. 2).
A curved thin plate-like lid member 21 is attached to the outer peripheral surface of the outer cylinder 7, and the opening of the through hole 15 located on the outer peripheral surface of the outer cylinder 7 is closed.
[0025]
A compressed spring 23 is disposed between the lid member 21 and the recess 19 a of the driver pin 19. Therefore, the tumbler pin 17 is in a state where the tip is protruded into the key hole 13 at normal time (when the joint key is not inserted (see FIG. 2)), and the tip is pressed against the urging force of the spring 23. Then, it is retracted into the through hole 15. The tumbler pin 17 is divided into a stepped pin 18 and a driver pin 19, and the boundary is a so-called shear line 25. The shear line 25 is set at a different position from the tip of each tumbler pin 17. That is, in the inner cylinder 11, the rotation restriction is not released unless all the shear lines 25 of the tumbler pins 17 coincide with the boundary portion 27 with the outer cylinder 7.
[0026]
In addition, a pair of insertion holes 29 facing each other and penetrating in the radial direction are formed in the inner position of the key hole 13 of the inner cylinder 11.
Each insertion hole 29 is a long hole that is long in the axial direction of the inner cylinder 11, and a sliding piece 31 that is disposed so as to face each other about the axis of the inner cylinder 11 is fitted. The sliding piece 31 is formed in a substantially rectangular plate shape and is slidable in the radial direction of the inner cylinder 11 in the insertion hole 29. The length of the sliding piece 31 is slightly longer than the thickness of the inner cylinder 11. Further, the tip of the sliding piece 31 is formed from a curved surface and has a substantially semi-cylindrical shape as an engaging convex portion 33. In a state where the sliding piece 31 is fitted and attached to the inner cylinder 11, the engaging convex portion 33 at the tip protrudes in a protruding shape in the keyhole 13. Further, the base end of the sliding piece 31 is substantially flush with the outer peripheral surface of the inner cylinder 11.
[0027]
Corresponding to each insertion hole 29 of the inner cylinder 11, a space portion 35 is formed at the opposite position on the inner peripheral surface of the outer cylinder 7. The space 35 is formed in a substantially concave groove shape along the axial direction of the outer cylinder 7.
A support piece 37 is fitted into the concave groove-shaped space 35. This support piece 37 is made of a material that can be crushed, preferably a material that is deformed by an external force and does not restore to its original shape, that is, a plastic material. In the present embodiment, the support piece 37 is composed of a circular pipe, preferably It consists of a thin pipe. The support piece 37 is located in the space 35, does not protrude from the inner peripheral surface of the outer cylinder 7, and abuts on the base end of the sliding piece 31 of the inner cylinder 11.
[0028]
Further, at the boundary portion between the inner cylinder 11 and the outer cylinder 7, the rotation of the inner cylinder 11 with respect to the outer cylinder 7 is temporarily performed at a position facing the position where the tumbler pin 17 is disposed (lower part in the figure). An engaging portion 39 is provided for holding the inner cylinder 11 and obtaining a click feeling when the inner cylinder 11 is rotated with respect to the outer cylinder 7. The locking portion 39 includes a substantially hook-shaped locking member 41 and a biasing member 43 such as a spring for biasing the locking member 41 from the inner peripheral surface of the outer cylinder 7 to the outer peripheral surface of the inner cylinder 11. A groove 45 along the axial direction is formed on the outer peripheral surface of the inner cylinder 11, and a locking member 41 is applied to the groove 45, and the rotation of the inner cylinder 11 with respect to the outer cylinder 7 is temporarily stopped.
[0029]
A connecting dharma 47 that is interlocked and connected to a lock mechanism (not shown) is connected to the inner end of the inner cylinder 11. The connecting dharma 47 is rotatably supported at the back end of the outer cylinder 7.
[0030]
Next, the key 51 used for the locking / unlocking device 1 will be described.
As shown in FIG. 5, the joint key 51 includes a knob portion 53 and an insertion portion 55.
The knob portion 53 is formed in a substantially rectangular plate shape. The insertion portion 55 is formed in a columnar shape having a continuous circular cross section. As shown in FIG. 5, the insertion portion 55 of the present embodiment has a small diameter in the middle, that is, the outer diameter is different via the step portion, is formed in multiple stages, and includes the small diameter portion 57. The tip is formed in a conical shape.
[0031]
On the outer peripheral surface of the insertion portion 55, a so-called dimple 59, a so-called dimple 59, in which the tumbler pin 17 is retracted into the through hole 15 and arranged at a predetermined position in the axial direction, is formed. As described above, the dimple 59 has such a depth that the positions of the different shear lines 25 coincide with the boundary portion 27.
The dimple 59 is combined with the outer diameter of the insertion portion 55, that is, a key difference is realized by the diameter of the narrow diameter portion 57 in the insertion portion 55 and the depth of the dimple 59.
[0032]
Moreover, as shown in FIG. 6, the engagement recessed part 61 is provided in the both sides | surfaces located in the radial direction outer side in the front-end | tip part of the insertion part 55 of this joint key 51. As shown in FIG. The engaging recess 61 is formed of a substantially U-shaped groove that is elongated along the axial direction of the insertion portion 55. In the present embodiment, these engaging recesses 61 are arranged in a direction orthogonal to the plate surface of the knob portion 53. And it is comprised so that it may mutually fit with the above-mentioned engagement convex part 33 in the key hole 13 of the inner cylinder 11, ie, the external shape of the engagement convex part 33 and the groove shape of the engagement recessed part 61 are set to substantially the same shape. The
[0033]
Next, operation | movement of the locking / unlocking apparatus 1 comprised in this way is demonstrated.
As shown in FIGS. 2 and 3, when the joint key 51 is not inserted, each tumbler pin 17 is urged by the spring 23 to project the tip into the key hole 13. Further, the shear lines 25 of the respective tumbler pins 17 are discontinuous, and as a result, the driver pins 19 are arranged at the boundary portions 27 between the outer cylinder 7 and the inner cylinder 11. For this reason, the inner cylinder 11 is restricted from rotating with respect to the outer cylinder 7.
[0034]
When the proper lock 51 shown in FIG. 5 is inserted into the cylinder lock 3, the engagement recess 61 at the tip of the lock 51 engages with the engagement protrusion 33 in the lock hole 13. At the same time, each tumbler pin 17 falls into a predetermined dimple 59 provided in the joint key 61, or the tumbler pin 17 abuts on the outer peripheral surface such as the small diameter portion 57 of the insertion portion 55, and the through hole 15 Move to a predetermined position in the axial direction. As a result, the shear line 25 of each tumbler pin 17 continues in a straight line as shown in FIG. 1 and coincides with the boundary portion 27 between the outer cylinder 7 and the inner cylinder 11. That is, the inner cylinder 11 is in a state in which the rotation restriction is released.
[0035]
Then, when the joint key 51 is rotated, the engagement concave portion 61 and the engagement convex portion 33 are engaged with each other in the circumferential direction in the axial direction, and an operation force in the rotation direction is transmitted, and the sliding piece 31 is transmitted. While being separated from each other at the boundary between the base end and the support piece 37, the tumbler pin 17 is separated from the shear line 25, and the inner cylinder 11 rotates with respect to the outer cylinder 7, that is, unlocks.
[0036]
It should be noted that the insertion portion 55 and the key hole 13 of the joint key 51 have a fitting state in which the outer diameter of the joint key 51 and the inner diameter of the key hole 13 are in the leading end portion, and the engagement concave portion 61 and the engagement convex portion. 33 is in a fitted state, the shape inside the key hole 13 and the shape of the fitting key insertion portion 55 are matched, and the rotation operation of the fitting key 51 is transmitted to the inner cylinder 11, and the inner cylinder 11 can be rotated.
[0037]
Here, for example, when a tool such as a screwdriver is used for the inner cylinder 11 of the cylinder lock 3 in order to illegally unlock the locking / unlocking device 1, the tool or the like is inserted into the key hole 13. However, since the shape does not match the key hole 13 correctly, the engagement convex portion 33 cannot be engaged, and the engagement convex portion 33 is thereby pressed. Then, the sliding piece 31 having the engagement convex portion 33 as the distal end slides and moves radially outward through the insertion hole 29 of the inner cylinder 11 and presses the supporting piece 37 that is in contact with the proximal end. . As shown in FIG. 7, the support piece 37 is deformed, that is, crushed by the pressing force, and the slide piece 31 slides and retreats through the insertion hole 29, and its base end is the space portion 35 of the outer cylinder 7. Will move in. As a result, the sliding piece 31 is positioned at the boundary portion 27 between the inner cylinder 11 and the outer cylinder 7, and even if the sliding piece 31 is forced to rotate, the inner cylinder 11 cannot be rotated. Lock operation becomes impossible.
[0038]
Therefore, in the locking / unlocking device 1 configured in this way, in order to rotate the inner cylinder 11 of the cylinder lock 3 with respect to the outer cylinder 7, each tumbler pin 17 is moved to a predetermined position in the axial direction of the through hole 15. The key 51 must be inserted into the key hole 13, and the shear line 25 of each tumbler pin 17 must be aligned with the boundary 27, and the shape of the key hole 13 and the outer shape of the insertion part 55 of the key 51 are inserted in the key hole 13. And the engagement concave portion 61 and the engagement convex portion 33 must be fitted to each other.
[0039]
As a result, the shape of the key hole 13 of the cylinder lock 3 is circular compared to a conventional locking / unlocking device that uses a flat joint key and rotates the inner cylinder of the cylinder lock. Even if an unauthorized operation is performed, that is, when the inner cylinder 11 is to be rotated, the inner cylinder 11 is not configured to be rotated, and thus the inner cylinder 11 cannot be rotated structurally. A high locking / unlocking device can be obtained. In particular, since the shape of the insertion part 55 of the joint key 51 is a columnar shape compared to a conventional flat joint, the depth of the dimple 59 can be configured in multiple stages, and Since the outer diameter can be combined with the small-diameter portion 57 and the like, it is possible to increase the combinations with different keys.
[0040]
Further, according to the locking / unlocking device 1, the sliding piece 31 that can slide in the radial direction in the inner cylinder 11 is provided, and the support piece 37 that can be crushed is provided on the outer cylinder 7 on the outer peripheral side of the sliding piece 31. With the provided structure, the sliding piece 31 moves to the boundary portion 27 between the outer cylinder 7 and the inner cylinder 11 by inserting a tool or the like other than the fitting key 51 into the key hole 13. This makes the inner cylinder 11 unrotatable with respect to the outer cylinder 7, so if an unauthorized unlocking operation is performed with something other than the key 51, the cylinder lock 3 becomes inoperable, that is, the locked state is maintained. It is possible to prevent the crime that is illegally unlocked.
[0041]
In the embodiment described above, the structure of the key 51 is such that the small diameter portion 57 is provided in the middle of the insertion portion 55. However, the formation position of the small diameter portion 57 is located at the insertion portion 55. It may be formed at other positions together with the dimples 59 to be formed, and the key difference is increased by using various combinations such as the formation position of the narrow diameter portion 57 and the dimple 59 and the diameter of the narrow diameter portion 57. It becomes possible.
[0042]
Further, the position of the sliding piece 31 having the engaging convex portion 33 disposed in the key hole 13 of the cylinder lock 3 is positioned in the back of the key hole 13, and the joint key corresponding to the engaging convex portion 33 is located. Although the configuration has been described in which the engaging concave portion 61 of the insertion portion 55 is disposed at the tip of the insertion portion 55, the engaging convex portion 33 is disposed in the middle portion in the key hole 13, and the engagement key portion 55 is engaged in the middle portion. For example, the concavity 61 may be provided as another position.
[0043]
【The invention's effect】
As described above, in the locking and unlocking device according to the present invention, the shape of the insertion portion of the key is a circular column with a circular cross section, and the shape of the key hole is a circular hole. Even if you try to lock a tool or the like in the key hole, it is impossible to rotate the inner cylinder because it is not shaped in the rotation direction, and you can get a locking and unlocking device with high crime prevention. Will be. In this locking / unlocking device, in order to rotate the inner cylinder of the cylinder lock with respect to the outer cylinder, a key for moving each tumbler pin to a predetermined position in the axial direction is inserted into the key hole, and a shear line of each tumbler pin is inserted. In the key hole, the shape of the key hole should match the outer shape of the insertion part of the fitting key, and the engagement recess and the engagement protrusion should be fitted to each other. Therefore, duplication of the key cannot be easily performed, and from this, it is possible to obtain a locking / unlocking device with high crime prevention.
[0044]
In addition, since the shape of the insertion part of the joint key is a columnar shape compared to a conventional flat joint key, the depth of the recess can be configured in multiple stages, and the outer diameter of the insertion part is small. Since it can be combined with a part or the like, it is possible to increase combinations with different keys.
[0045]
Furthermore, by making the engagement convex portion and the engagement concave portion long in the axial direction, the engagement state between the engagement convex portion and the engagement concave portion becomes long in the meshing in the circumferential direction, The pivoting operation of the engagement key on the engagement recess side can be reliably transmitted to the inner cylinder on the engagement projection side, and the inner cylinder can be locked and unlocked by the engagement key.
[0046]
In addition, by providing a sliding piece that can be slid in the radial direction in the inner cylinder, and by providing a crushable support piece on the outer cylinder on the outer peripheral side of this sliding piece, tools other than fitting keys, etc. Is inserted into the key hole, the sliding piece moves to the boundary between the outer cylinder and the inner cylinder, which makes the inner cylinder unrotatable with respect to the outer cylinder. If you try to operate with something other than the key, the cylinder lock becomes inoperable, that is, you can keep the locked state and make it unusable, and you can prevent illegal unlocking crimes .
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment of a locking / unlocking device according to the present invention.
FIG. 2 is a side sectional view of a cylinder lock of the locking / unlocking device.
FIG. 3 is a front view of a cylinder lock of the locking / unlocking device.
FIG. 4 is a front sectional view of a cylinder lock of the locking / unlocking device.
FIG. 5 is a side view showing the key of the locking / unlocking device.
FIG. 6 is a front view showing the key of the locking / unlocking device.
FIG. 7 is a front sectional view showing an operation state of the locking and unlocking apparatus.
FIG. 8 is a perspective view showing a key of a conventional locking / unlocking device.
FIG. 9 is a cross-sectional view of a combination key.
FIG. 10 is a cross-sectional view showing a cylinder lock of a conventional locking / unlocking device.
FIG. 11 is a cross-sectional view showing a cylinder lock of a conventional locking / unlocking device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Locking / unlocking device 3 ... Cylinder lock 7 ... Outer cylinder 11 ... Inner cylinder 13 ... Key hole 17 ... Tumbler pin 25 ... Shear line 27 ... Boundary part 29 ... Insertion hole 31 ... Sliding piece 33 ... Engaging convex part 35 ... Space Portion 37 ... Supporting piece 51 ... Joint key 55 ... Insertion portion 57 ... Small diameter portion 59 ... Recess (dimple)
61 ... engaging recess

Claims (3)

外筒と、該外筒に対し回動自在な内筒とを備え、前記外筒と内筒とに亘ってタンブラーピンが貫通配置されるシリンダ錠に、前記内筒に形成されるカギ穴に合カギを挿入することにより、前記タンブラーピンを前記カギ穴から半径方向所定位置に移動させ、前記外筒と内筒との境界部に前記タンブラーピンのシアラインを一致させることで前記内筒の回動規制を解除する施解錠装置であって、
円形穴状に形成されるカギ穴を備えた内筒と、
前記カギ穴に挿入される挿入部が断面円形が連続する円柱状に形成され、該挿入部の外周面に前記タンブラーピンに対応して深さを組み合わされる複数の凹部が形成される合カギと、
前記内筒のカギ穴内の所定位置に配置され、該カギ穴内方向に突出する係合凸部と、
前記合カギの外周面に形成され、前記係合凸部に係合する係合凹部と、
を具備するとともに、
前記内筒には、半径方向に挿通穴が形成され、該挿通穴に先端が前記係合凸部となる摺動片が前記内筒の半径方向に摺動自在に設けられ、
前記外筒の内周面には、前記挿通穴に対応して空間部が形成され、該空間部内に、前記摺動片の基端に当接し前記係合凸部をカギ穴内に突出状態で支持するとともに、押圧力によって元の形状に復元せず圧潰する支持片が設けられており、
前記合カギによる操作時には、前記シアラインが一致するとともに、前記係合凸部と前記係合凹部とが嵌合し、前記カギ穴内部の形状と前記合カギ挿入部の形状とが合致し、前記合カギの回動操作が前記内筒に伝達され、
前記カギ穴に対して正しく合う形状でない物が挿入された際には、前記係合凸部が押圧されて、前記摺動片の摺動により支持片が圧潰し、前記内筒と前記外筒との境界部分に、前記摺動片が位置して、前記内筒の回動を不能とすることを特徴とする施解錠装置。
A cylinder lock having an outer cylinder and an inner cylinder rotatable with respect to the outer cylinder, in which a tumbler pin extends through the outer cylinder and the inner cylinder, in a key hole formed in the inner cylinder By inserting a lock key, the tumbler pin is moved from the key hole to a predetermined position in the radial direction, and the shear line of the tumbler pin is aligned with the boundary between the outer cylinder and the inner cylinder, thereby rotating the inner cylinder. A locking / unlocking device for releasing the movement restriction,
An inner cylinder with a keyhole formed in a circular hole shape;
An insertion key that is inserted into the key hole is formed in a cylindrical shape having a circular cross section, and a plurality of recesses that are combined in depth corresponding to the tumbler pin are formed on the outer peripheral surface of the insertion part; ,
An engagement projection that is disposed at a predetermined position in the key hole of the inner cylinder and projects inward in the key hole;
An engagement recess formed on the outer peripheral surface of the key and engaging with the engagement protrusion;
With comprising a,
An insertion hole is formed in the inner cylinder in the radial direction, and a sliding piece whose tip is the engagement convex portion is provided in the insertion hole so as to be slidable in the radial direction of the inner cylinder,
A space portion is formed on the inner peripheral surface of the outer cylinder corresponding to the insertion hole, and the engagement convex portion protrudes into the key hole in contact with the base end of the sliding piece in the space portion. A support piece that supports and crushes without being restored to its original shape by a pressing force is provided.
At the time of operation by the fitting key, the shear line is matched, the engagement convex portion and the engagement concave portion are fitted, and the shape inside the key hole and the shape of the fitting key insertion portion are matched, The turning operation of the key is transmitted to the inner cylinder,
When an object having a shape that does not properly fit the keyhole is inserted, the engagement convex portion is pressed, and the support piece is crushed by sliding of the slide piece, and the inner cylinder and the outer cylinder A locking / unlocking device according to claim 1, wherein the sliding piece is positioned at a boundary portion between the inner cylinder and the inner cylinder to prevent rotation .
前記合カギの挿入部は、軸方向に段部を介して外径異なり、多段に形成されて、細径部を備えるとともに、先端が円錐状に形成されることを特徴とする請求項1記載の施解錠装置。Claim insertion portion of the case key is, unlike the outer diameter via a step portion in the axial direction, are formed in multiple stages, provided with a small-diameter portion, characterized in that the tip is formed in a conical shape The locking / unlocking device according to 1. 前記係合凸部は、前記内筒の軸線方向に平行とされる長尺な突条形状に形成され、前記係合凹部は、前記挿入部の軸線方向に平行とされる長尺な溝条に形成されることを特徴とする請求項1または2記載の施解錠装置。  The engaging projection is formed in a long ridge shape that is parallel to the axial direction of the inner cylinder, and the engaging recess is a long groove that is parallel to the axial direction of the insertion portion. The locking / unlocking device according to claim 1, wherein the locking / unlocking device is formed.
JP2002049930A 2002-02-26 2002-02-26 Locking and unlocking device Expired - Fee Related JP4128375B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002049930A JP4128375B2 (en) 2002-02-26 2002-02-26 Locking and unlocking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002049930A JP4128375B2 (en) 2002-02-26 2002-02-26 Locking and unlocking device

Publications (2)

Publication Number Publication Date
JP2003247364A JP2003247364A (en) 2003-09-05
JP4128375B2 true JP4128375B2 (en) 2008-07-30

Family

ID=28662318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002049930A Expired - Fee Related JP4128375B2 (en) 2002-02-26 2002-02-26 Locking and unlocking device

Country Status (1)

Country Link
JP (1) JP4128375B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5455209B2 (en) * 2009-09-24 2014-03-26 株式会社シブタニ Multi-row pin cylinder lock
CN103195298A (en) * 2013-04-16 2013-07-10 龚道宽 Novel lock with high safety performance
JP2023096525A (en) * 2021-12-27 2023-07-07 株式会社Lixil cylinder lock and door

Also Published As

Publication number Publication date
JP2003247364A (en) 2003-09-05

Similar Documents

Publication Publication Date Title
JP4401605B2 (en) Thumb turn
JP4128375B2 (en) Locking and unlocking device
JPH09235922A (en) Variable code type cylinder lock
JP2950731B2 (en) Lock device
JP3283741B2 (en) Cylinder lock
JP3898036B2 (en) Cylinder lock
JPH09235921A (en) Variable code type cylinder lock
JP2980251B2 (en) Cylinder lock
JP3090356B2 (en) Cylinder lock
JP4154192B2 (en) Sliding door lock
JP3025419B2 (en) Lock device
JP4292014B2 (en) Thumb turn
JP2595638Y2 (en) Cylinder lock
JP3361746B2 (en) Cylinder lock
JP3297862B2 (en) Pin tumbler lock and pin tumbler lock device
JP2511039Y2 (en) Variable code type cylinder lock
JP2596564Y2 (en) Key device
JP3628656B2 (en) Cylinder lock
JP3367759B2 (en) Cylinder lock
JP4181671B2 (en) Cup tablets
JPH0448296Y2 (en)
JP3260724B2 (en) Variable code cylinder lock device
JP2600311Y2 (en) Key device
JP2583410Y2 (en) Variable code type cylinder lock
JP3074077U (en) Double pin tumbler type locking device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050120

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20071220

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080108

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080305

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080415

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080514

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110523

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees