JP3718178B2 - Cylinder lock lock / unlock display device - Google Patents

Cylinder lock lock / unlock display device Download PDF

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Publication number
JP3718178B2
JP3718178B2 JP2002109750A JP2002109750A JP3718178B2 JP 3718178 B2 JP3718178 B2 JP 3718178B2 JP 2002109750 A JP2002109750 A JP 2002109750A JP 2002109750 A JP2002109750 A JP 2002109750A JP 3718178 B2 JP3718178 B2 JP 3718178B2
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Prior art keywords
display
cylinder
key
lock
angle
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JP2002109750A
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JP2003301634A (en
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知明 上野
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美和ロック株式会社
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Description

【0001】
【発明の属する技術分野】
この発明は、キャビネットの引出し、ロッカの扉又は出入口のドア等に設けられるシリンダ錠の施解錠の状態を一見してわかるようにしたシリンダ錠の施解錠表示装置の改良に関する。
【0002】
【従来の技術】
従来のこの種の施解錠表示装置としては、例えば、特開平9−25751号公報に記載されたものを挙げることができる。
【0003】
同公報に示された一つの施解錠表示装置は、錠前本体に対して180°回転可能なシリンダーヘッドを設け、表面を異なる二種類の色で着色した表示板及び該表示板の表面の一部を露出させる開口部を有するケースカバーを順に取付け、シリンダーヘッドの回転に伴って表示板又はケースカバーを回転させることにより、ケースカバーの開口部から見える表示板の色により施錠又は解錠状態を確認出来るようにしたものである。
【0004】
また、別の施解錠表示装置は、鍵穴の周囲を異なる二種類の色で着色したシリンダーヘッドを錠前本体に対して180°回転可能に設けるとともに、該シリンダーヘッドの着色を露出させる開口部を有するケースカバーを外被して錠前本体に取り付け、シリンダーヘッドを回転させることにより、ケースカバーの開口部から見える着色部の色の相違から施錠又は解錠状態を確認できるようにしたものである。
【0005】
上記した構成の施解錠表示装置は、勿論所期の機能を発揮することができ実用されているが、表示板或いはシリンダーヘッドの着色部はシリンダー錠の内筒端面内に設けられるので、着色表示部を大きくすることができず、施解錠の表示が遠くからは見えにくい、等改良の余地がある。
【0006】
また、本出願人は、先に、例えば特願平9−369458号を以て、上記した不都合を解消したシリンダ錠の施解錠表示装置を提案した。
【0007】
この発明は、上記本出願人の提案に係るシリンダ錠の施解錠表示装置を改良し、施解錠操作が異なる2種以上のシリンダ錠に対応し得る施解錠表示装置を提供することを目的としている。
【0008】
【課題を解決するための手段】
上記の目的を達成するため、この発明は、施錠時鍵孔に挿入された合鍵を4αの角度回動してその角度位置で合鍵を抜き、解錠時には合鍵を同じ角度反対方向に回してその角度位置で合鍵を抜くタイプのシリンダ錠と、施錠時鍵孔に挿入された合鍵を2αの角度回動し、同じ角度反対方向に回し戻して合鍵を抜き、解錠時施錠時とは反対方向に2αの角度回動し、同じ角度施錠方向に回し戻して合鍵を抜く二つのタイプのシリンダ錠の施解錠状態を同じ機構で表示できるようにしたものであって、シリンダ錠の外筒と同軸に嵌合する内筒の外筒外端面から少し突出する外端外周部に表示リングを回動可能に嵌着し、この表示リングの外面に、その円周方向に沿って、夫々内筒中心軸を見込む角度がαの3つの区画を連設し、これら3つの区画の両端の区画に相互に異なる色彩を施して、夫々施錠状態及び解錠状態に対応する二つの表示部を設けると共に、表示リングの内周面の内側に一定の角度範囲にわたって遊動切欠を形成し、一方、内筒の外周面外端部に、半径方向に突出し、上記遊動切欠と遊動可能に係合するツクを突設し、また、上記遊動切欠とツクの内筒中心軸を見込む角度の差を2αとし、他方、浅いカップ状で底面に内筒の外端面を覗かせる開口と表示リングの表示部を覗かせる表示孔とを形成した外筒キャップをシリンダ錠の外端部を覆うように装着したことを特徴とする。
【0009】
【実施例】
以下、図面を参照してこの発明について説明する。
なお、この発明は、上記αが45度のシリンダ錠、すなわち、鍵孔に合鍵を挿入して90度施錠方向或いは解錠方向に回動し、反対方向に90度戻して合鍵を抜くタイプの錠前、及び鍵孔に合鍵を挿入して180度施錠方向或いは解錠方向に回動し、その侭合鍵を抜くタイプの錠前に特に好適であり、これら二つのタイプの錠前に対し同じ機構で施解錠表示を行うことができる。
【0010】
なお、シリンダ錠は、その構造上、施解錠操作に必要な内筒の回動角度を過小にならない限り任意に設定できるのだが、90度或いは180度以外の回動角度では、施錠或いは解錠操作後の鍵孔の角度位置が異なってしまい、使い勝手が悪くなるので、通常の錠前では上記したように回動(操作)角度が定まっている。
【0011】
しかしながら、この発明は、後に明らかになるように、操作角度が90度、180度以外の任意の操作角度の錠前にも適用することができる。
【0012】
図1乃至図4において符号1は事務机の引出しのシリンダ錠の外筒を、符号2は内筒を夫々示す。なお、内筒2の外周面にはタンブラーを収納するスロット或いはタンブラーばねを収納するばね孔が開口しているが、図示の実施例では図面が煩雑になるのを避けるためこれらの開口の図示を省略している。
【0013】
なお、図示の実施例では、内筒2の外筒1に対する軸線方向の相対位置は、後述のツク9と外筒1の開口端に形成された段部1a(図2及び図3参照)との係合によって定まる。
【0014】
上記内筒2の外端(図2及び図3で左端)外周部には横断面が矩形の表示リング3が回動可能に嵌着されている。
【0015】
この表示リング3の蛇の目状の外面の一部には、図3及び図5に示すように、その円周方向に沿って、夫々内筒中心軸を見込む角度がα(図示の実施例ではα=45度)の3つの区画が連設されている。
【0016】
そして、これら3つの区画の両端の区画に相互に異なる色彩を施して、夫々施錠状態及び解錠状態に対応する二つの表示部、すなわち、図示の実施例では施錠状態を示す第一表示部4と、解錠状態を示す第二表示部5とが区画、形成されている。
【0017】
但し、図示の実施例では、合鍵を時計方向に回動することによりシリンダ錠を施錠するものとする。
【0018】
なお、第一及び第二表示部4、5の中間の中間区画6は、後述するように、表示が切り替わるときに表示窓を通過するだけであるから、第一或いは第二表示部と同一の色彩を施してもよいし、これらとは別の色彩でもよいし、或いは表示リング3の地色としてもよい。
【0019】
また、同様に、第一及び第二表示部4、5は相互に異なる色彩であればよいので、一方を表示リング3の地色としてもよい。
【0020】
図示の実施例における表示リング3は、例えば地色が赤色の合成樹脂製で、第一及び第二表示部4、5の何れか一方を地色の赤色とし、他方を例えば印刷により水色とする。
【0021】
また、図2に示すように、表示リング3の外面の外周縁を残して浅い段部7を形成し、この段部の底面を表示面として水色の印刷等を施すと良い。後述するように表示面が回動して外筒キャップの表示孔の開口端縁と表示面が摺接して摩耗することを防止する為である。
【0022】
また、図2乃至図4に明示するように、表示リング3の内周面の内側(図4で手前側)は一定の角度範囲(図示の実施例では180度)にわたって切り欠かれ、断面が矩形の遊動切欠8が形成されている。
【0023】
一方、図2乃至図4に示すように、内筒2の外周面外端部には、内筒の半径方向に突出する、例えば外形及び横断面形状が矩形のツク9が突設されている。
【0024】
このツク9の半径方向の突出量は上記遊動切欠8の深さよりも小さく設定されており、したがって表示リング3を内筒に嵌着した状態においてツク9は遊動切欠8内で遊動することができる。
【0025】
なお、図示の実施例では、ツク9が円周方向において内筒の中心軸を見込む角度は90度であり、遊動切欠8とツク9の内筒中心軸を見込む角度の差は180度−90度=90度(2α)となっている。
【0026】
他方、図2乃至図4に示すように、シリンダ錠の外端にはこれを覆うように外筒キャップ11が装着されている。
【0027】
この外筒キャップ11は、円形の浅いカップ状で、その底面中央には内筒2の外端面を覗かせるための円形の開口12が形成されており、また、この開口12の外側に連続して、時計盤面に換算して12時の角度位置に、円弧状の表示孔13(図1及び図3参照)が開口している。
【0028】
この表示孔13は前記した表示リング3を覗かせるもので、その半径方向の位置は表示リング3のそれと一致している。
【0029】
また、この表示孔13が内筒の中心を見込む角度は、図示の実施例では約45度(α)となっている。
【0030】
更にまた、図示の実施例では、外筒キャップ11の開口端縁の4ヵ所から半径方向に突出する夫々矩形の支脚14、14が一体に形成されていて、各支脚14が、外筒1の外端面に形成された支脚14の厚さとほぼ同じ深さの固定穴15(図3参照)に嵌め込まれ、かしめによって外筒キャップ11が外筒1に固定される。
【0031】
このかしめは、例えば図1に示すように、支脚14を固定穴15に嵌め込んだ後、固定穴15の開口部に形成された小突起16を加圧し、或いは打撃することにより行う。
【0032】
なお、表示リング3と外筒キャップ11との嵌合を比較的しっくり、換言すれば若干止まりばめ傾向にし、表示リング3と内筒との嵌合を弛み加減にすることが望ましい。
【0033】
施解錠時合鍵を180度回し、その角度位置で合鍵を抜くタイプのシリンダ錠にこの発明を適用する場合、図5及び図6に示すように、例えば解錠状態を示す第2表示部5を時計盤面に換算して12時の角度位置に置く。
【0034】
そして、内筒と一体のツク9の遊動切欠8に対する相対角度位置を、図6に示すように、ツク9の施錠時における回動方向(図5で時計方向、図6で半時計方向)において2αの遊び角度があるように、換言すれば、施錠時ツクが2α(90度)遊動できるように設定する。
【0035】
上記のように構成されたこの発明による施解錠表示装置は、鍵孔17(図1参照)に図示しない合鍵を差込み全タンブラーをシアーラインに揃えた後合鍵を時計方向に180度回すと、これと一体に内筒2及びツク9が施錠方向に回動する。
【0036】
このとき、回動の初期の段階では内筒のツク9は遊動切欠8内で遊動するのみなので、回し始めから90度の角度範囲では内筒2のみが回動して表示リング3は当初の角度位置に残される。
【0037】
内筒2が90度回動すると、図7に示すように、ツク9が遊動切欠8の一方の端部に突き当たり、以降内筒2と表示リング3とが一体的に回動し始める結果、外筒キャップの表示孔13に対し表示リング3が相対的に反時計方向に回動する。
【0038】
そして、内筒2が180度回動し終えると、図8に示すように、施錠状態を示す第一表示部4が時計盤面で12時の角度位置に来るので、表示孔13から見える第一表示部の色により施錠状態を表示することができる。
【0039】
そして、内筒を施錠角度位置に置いた状態で合鍵を抜くと、表示リング3はその角度位置を保つから、次の解錠操作まで施錠の表示はその侭保たれる。
【0040】
同様に、上記とは反対方向(解錠方向:図8で時計方向)に合鍵を回す場合、図8から明らかなように、最初の90度の角度範囲では表示部は動かない。
【0041】
ツク9(内筒)が90度回動すると、図9に示すように、ツク9が遊動切欠8の他方の端部に突き当たり、90度を越えると、表示リング3がツク9と一体的に時計方向に回動し始め、内筒2が解錠方向に180度回動し終えると、図6に示すように、解錠状態を示す第二表示部5が表示孔13の角度位置に戻る。そこでこの角度位置で合鍵を鍵孔から抜く。
【0042】
施解錠時合鍵を90度回し、更に同じ角度回し戻して合鍵を抜くタイプのシリンダ錠にこの発明を適用する場合、図7に示すように、例えば解錠時ツク9が施錠方向において遊動切欠8の一方の端部に突き当たるように、内筒の鍵孔17に対するツク9の相対角度位置を設定する。
【0043】
この状態で合鍵を鍵孔17に差込み、施錠のため内筒2を時計方向(図7では反時計方向)に回すと、ツク9は遊動切欠8内で遊動せず直に表示リング3と一体的に回動し始め、内筒を90度回すと、図8に示すように、また、前記したように、表示リングも90度回って施錠状態を示す第一表示部4が表示孔13と整合する。
【0044】
この状態から合鍵を90度回し戻すと、図9に示すように、また、前記したように、表示リング3を図8に示す角度位置に残したまま、ツク9のみが遊動切欠8内を遊動して、図9に示す角度位置に戻る。
【0045】
この状態で合鍵を抜くと、表示リング3はその角度位置を保つから、次の解錠操作まで施錠の表示はその侭保たれる。
【0046】
解錠のため合鍵を鍵孔に差込んで反時計方向(図9では時計方向)に回すと、図9から明らかなように、表示リング3は直に内筒と一体的に回動し、内筒2が90度回動すると、図6に示すように、第二表示部5が表示孔13と整合する。
【0047】
この状態から合鍵を90度回し戻すと、前記したと同様にして、表示リング3を図6に示す角度位置に残したまま、ツク9のみが遊動切欠8内を遊動して、図7に示す角度位置に戻る。
【0048】
以上各前述の如く、この発明は一般に多用されているαが45度のシリンダ錠に好適であるが、シリンダ錠は、その目的により、例えば45度一定方向に回し、同じ角度回し戻して施解錠するものがあり(この場合α=22.5度)、このタイプのシリンダ錠にもこの発明を適用することができることは言うまでもない

【0049】
【発明の効果】
以上の説明から明らかなように、この発明は、内筒の外端外周部に表示リングを回動可能に嵌着し、この表示リングの外面に、その円周方向に沿って、夫々内筒中心軸を見込む角度がαの3つの区画を連設し、両端の区画に相互に異なる色彩を施して、夫々施錠状態及び解錠状態に対応する二つの表示部を設けると共に、表示リングの内周面の内側に一定の角度範囲にわたって遊動切欠を形成し、一方、内筒の外周面外端部に上記遊動切欠と遊動可能に係合するツクを突設し、上記遊動切欠とツクの内筒中心軸を見込む角度の差を2αとしたので、同一の機構で施解錠操作が異なる2種以上のシリンダ錠にも対応し得る施解錠表示装置を得ることができる、という効果を奏する。
【0050】
また、表示リングを内筒の外端外周部に回動可能に嵌着したから、表示部を大きく見易くすることができる、等種々の効果を奏する。
【図面の簡単な説明】
【図1】この発明の一実施例による施解錠表示装置を設けたシリンダ錠の正面図。
【図2】図1のII−II線による断面図。
【図3】この発明の一実施例による施解錠表示装置を設けたシリンダ錠の構成部材を展開して示す外観斜視図で、主に各部材の外側を表示している。
【図4】この発明の一実施例による施解錠表示装置を設けたシリンダ錠の構成部材を展開して示す外観斜視図で、主に各部材の内側を表示している。
【図5】表示リングの正面図。
【図6】遊動切欠とツクとの係合の変化を説明するための表示リングの裏面図で、解錠表示状態を示す。
【図7】図6と同様の表示リングの裏面図で、ツクのみが遊動切欠内を遊動した状態を示す。
【図8】図6と同様の表示リングの裏面図で、表示リングが施錠表示角度位置にまで回動した状態を示す。
【図9】図6と同様の表示リングの裏面図で、ツクのみが遊動切欠内を遊動して待機角度位置に戻った状態を示す。
【符号の説明】
1 外筒
2 内筒
3 表示リング
4 第一表示部
5 第二表示部
6 中間区画
8 遊動切欠
9 ツク
11 外筒キャップ
12 開口
13 表示孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a lock / unlock display device for a cylinder lock which can be understood at a glance from the state of locking / unlocking of a cylinder lock provided on a drawer of a cabinet, a door of a rocker or a door of an entrance / exit.
[0002]
[Prior art]
As this type of conventional locking / unlocking display device, for example, the one described in JP-A-9-25751 can be exemplified.
[0003]
One locking / unlocking display device disclosed in this publication is provided with a cylinder head that can be rotated by 180 ° with respect to a lock body, and a surface plate colored with two different colors and a part of the surface of the display plate. Attach a case cover with an opening that exposes the cylinder in order, and rotate the display board or case cover as the cylinder head rotates to check the locked or unlocked state by the color of the display board visible from the opening of the case cover It is something that can be done.
[0004]
Further, another locking / unlocking display device is provided with a cylinder head colored around two different colors around the keyhole so that the cylinder head can be rotated 180 ° with respect to the lock body, and has an opening for exposing the coloring of the cylinder head. By covering the case cover and attaching it to the lock body, and rotating the cylinder head, the locked or unlocked state can be confirmed from the difference in the color of the colored portion visible from the opening of the case cover.
[0005]
The locking / unlocking display device having the above-described configuration is of course capable of exhibiting the intended function and is practically used. However, since the colored portion of the display board or cylinder head is provided in the inner cylinder end surface of the cylinder lock, the colored display is provided. There is room for improvement, such as being unable to enlarge the part and being difficult to see the lock / unlock indication from a distance.
[0006]
The present applicant has previously proposed a cylinder lock locking / unlocking display device which has solved the above-mentioned disadvantages, for example, by Japanese Patent Application No. 9-369458.
[0007]
An object of the present invention is to improve the locking / unlocking display device for a cylinder lock according to the proposal of the applicant, and to provide a locking / unlocking display device capable of dealing with two or more types of cylinder locks having different locking / unlocking operations. .
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention rotates the key inserted in the key hole at the time of locking by an angle of 4α and removes the key at the angular position. The cylinder lock of the type that removes the key at the angle position and the key inserted in the key hole at the time of locking rotate the angle of 2α, turn it back in the opposite direction to the same angle, remove the key, and reverse the direction at the time of unlocking It is possible to display the locking and unlocking states of the two types of cylinder locks that are rotated at an angle of 2α, turn back in the same angle locking direction and remove the key, and are coaxial with the outer cylinder of the cylinder lock. A display ring is rotatably fitted to the outer peripheral part of the outer end that slightly protrudes from the outer end surface of the outer cylinder of the inner cylinder that is fitted to the inner cylinder, and the center of the inner cylinder is arranged along the circumferential direction on the outer surface of the display ring. Three sections with an angle α that looks into the axis are connected in series. Applying different colors to the end section, providing two display portions corresponding to the locked state and the unlocked state, respectively, and forming a floating notch over a certain angular range inside the inner peripheral surface of the display ring, On the other hand, at the outer end of the outer peripheral surface of the inner cylinder, a hook projecting radially and movably engaged with the floating notch is projected, and the difference in angle between the floating notch and the inner cylinder central axis of the hook is expected. 2α, and on the other hand, an outer cylinder cap having a shallow cup-like shape with an opening through which the outer end surface of the inner cylinder can be seen and a display hole through which the display part of the display ring can be seen covers the outer end of the cylinder lock. It is characterized by wearing.
[0009]
【Example】
The present invention will be described below with reference to the drawings.
This invention is a cylinder lock in which α is 45 degrees, that is, a type in which a key is inserted into a keyhole, rotated 90 degrees in the locking or unlocking direction, and returned 90 degrees in the opposite direction to remove the key. It is particularly suitable for locks and locks of the type in which the key is inserted into the keyhole and rotated 180 degrees in the locking or unlocking direction and the combined key is removed. Lock display can be performed.
[0010]
The cylinder lock can be arbitrarily set as long as the rotation angle of the inner cylinder necessary for the locking / unlocking operation is not excessively small, but it can be locked or unlocked at a rotation angle other than 90 degrees or 180 degrees. Since the angle position of the keyhole after the operation is different and the usability is deteriorated, the rotation (operation) angle is determined as described above in a normal lock.
[0011]
However, as will become apparent later, the present invention can also be applied to locks having any operation angle other than 90 degrees and 180 degrees.
[0012]
1 to 4, reference numeral 1 denotes an outer cylinder of a drawer lock of the office desk, and reference numeral 2 denotes an inner cylinder. In addition, although the slot which accommodates a tumbler, or the spring hole which accommodates a tumbler spring is opening in the outer peripheral surface of the inner cylinder 2, in order to avoid drawing becoming complicated in the example of illustration, illustration of these opening is shown. Omitted.
[0013]
In the illustrated embodiment, the relative position in the axial direction of the inner cylinder 2 with respect to the outer cylinder 1 is as follows: a post 9 and a step 1a (see FIGS. 2 and 3) formed at the open end of the outer cylinder 1. Determined by the engagement.
[0014]
A display ring 3 having a rectangular cross section is rotatably fitted to the outer periphery of the outer end (left end in FIGS. 2 and 3) of the inner cylinder 2.
[0015]
As shown in FIGS. 3 and 5, a part of the outer surface of the display ring 3 having a serpentine shape has an angle α (see α in the illustrated embodiment) along the circumferential direction. = 45 degrees) are provided in a row.
[0016]
And two different display portions corresponding to the locked state and the unlocked state, respectively, that is, the first display portion 4 indicating the locked state in the illustrated embodiment, are given different colors to both ends of these three sections. And the 2nd display part 5 which shows an unlocking state is divided and formed.
[0017]
However, in the illustrated embodiment, the cylinder lock is locked by rotating the joint key clockwise.
[0018]
Since the intermediate section 6 between the first and second display sections 4 and 5 only passes through the display window when the display is switched as will be described later, it is the same as the first or second display section. A color may be applied, a color different from these may be used, or a ground color of the display ring 3 may be used.
[0019]
Similarly, since the first and second display units 4 and 5 may have different colors, one of them may be the ground color of the display ring 3.
[0020]
The display ring 3 in the illustrated embodiment is made of, for example, a synthetic resin having a red ground color, and one of the first and second display portions 4 and 5 is red in the ground color, and the other is light blue by printing, for example. .
[0021]
In addition, as shown in FIG. 2, it is preferable to form a shallow step 7 while leaving the outer peripheral edge of the outer surface of the display ring 3 and to perform light blue printing or the like using the bottom surface of the step as the display surface. This is to prevent the display surface from rotating and being worn by sliding contact between the opening edge of the display hole of the outer cylinder cap and the display surface, as will be described later.
[0022]
Further, as clearly shown in FIGS. 2 to 4, the inner side (front side in FIG. 4) of the inner peripheral surface of the display ring 3 is cut out over a certain angular range (180 degrees in the illustrated embodiment), and the cross section is A rectangular floating notch 8 is formed.
[0023]
On the other hand, as shown in FIGS. 2 to 4, a hook 9 having a rectangular outer shape and a cross-sectional shape, for example, projects in the radial direction of the inner cylinder at the outer end of the outer peripheral surface of the inner cylinder 2. .
[0024]
The amount of protrusion of the stick 9 in the radial direction is set to be smaller than the depth of the floating notch 8, so that the stick 9 can freely move in the loose notch 8 with the display ring 3 fitted to the inner cylinder. .
[0025]
In the illustrated embodiment, the angle at which the tack 9 looks at the central axis of the inner cylinder in the circumferential direction is 90 degrees, and the difference between the angles at which the inner notch center axis of the loose notch 8 and the tack 9 looks at is 180 degrees-90. Degree = 90 degrees (2α).
[0026]
On the other hand, as shown in FIGS. 2 to 4, an outer cylinder cap 11 is attached to the outer end of the cylinder lock so as to cover it.
[0027]
This outer cylinder cap 11 has a circular shallow cup shape, and a circular opening 12 for allowing the outer end surface of the inner cylinder 2 to be viewed is formed at the center of the bottom surface. Thus, an arc-shaped display hole 13 (see FIGS. 1 and 3) is opened at an angular position of 12:00 in terms of the clock face.
[0028]
The display hole 13 allows the above-described display ring 3 to be viewed, and the radial position thereof coincides with that of the display ring 3.
[0029]
Further, the angle at which the display hole 13 looks at the center of the inner cylinder is about 45 degrees (α) in the illustrated embodiment.
[0030]
Furthermore, in the illustrated embodiment, rectangular support legs 14, 14 projecting radially from four locations on the opening edge of the outer cylinder cap 11 are integrally formed, and each of the support legs 14 is formed on the outer cylinder 1. The outer cylinder cap 11 is fixed to the outer cylinder 1 by caulking and is fitted into a fixing hole 15 (see FIG. 3) having a depth substantially equal to the thickness of the support leg 14 formed on the outer end surface.
[0031]
For example, as shown in FIG. 1, the caulking is performed by pressing or striking the small protrusion 16 formed in the opening of the fixing hole 15 after the support leg 14 is fitted in the fixing hole 15.
[0032]
In addition, it is desirable that the fitting between the display ring 3 and the outer cylinder cap 11 is relatively smooth, in other words, the fitting is slightly stopped and the fitting between the display ring 3 and the inner cylinder is loosened.
[0033]
When the present invention is applied to a cylinder lock of the type in which the lock key is rotated 180 degrees and the lock key is removed at the angular position, as shown in FIG. 5 and FIG. Convert to the clock face and place it at the 12 o'clock angle.
[0034]
Then, the relative angular position of the hook 9 integral with the inner cylinder with respect to the loose notch 8 is as shown in FIG. 6 in the direction of rotation when the hook 9 is locked (clockwise in FIG. 5 and counterclockwise in FIG. 6). In other words, the locking angle is set so that it can move 2α (90 degrees) so that there is a 2α play angle.
[0035]
When the lock / unlock display device according to the present invention constructed as described above is inserted into the key hole 17 (see FIG. 1) and the tumbler is aligned with the shear line, the combined key is rotated 180 degrees clockwise. And the inner cylinder 2 and the hook 9 rotate in the locking direction.
[0036]
At this time, since the inner cylinder hook 9 is only loosely moved in the floating notch 8 at the initial stage of rotation, only the inner cylinder 2 is rotated within the angle range of 90 degrees from the beginning of rotation, and the display ring 3 Left in the angular position.
[0037]
When the inner cylinder 2 rotates 90 degrees, as shown in FIG. 7, the stick 9 strikes one end of the idle cutout 8, and thereafter the inner cylinder 2 and the display ring 3 start to rotate integrally, The display ring 3 is rotated counterclockwise relative to the display hole 13 of the outer cylinder cap.
[0038]
Then, when the inner cylinder 2 has finished rotating 180 degrees, as shown in FIG. 8, the first display portion 4 indicating the locked state comes to the 12 o'clock angle position on the clock face, so the first display visible from the display hole 13 The lock state can be displayed by the color of the display unit.
[0039]
Then, when the key is pulled out with the inner cylinder placed at the locking angle position, the display ring 3 maintains the angular position, so that the lock display is maintained until the next unlocking operation.
[0040]
Similarly, when the key is turned in the opposite direction (unlocking direction: clockwise in FIG. 8), the display unit does not move in the first 90 degree angle range, as is apparent from FIG.
[0041]
When the tack 9 (inner cylinder) rotates 90 degrees, as shown in FIG. 9, the tack 9 abuts against the other end of the idle cutout 8, and when it exceeds 90 degrees, the display ring 3 is integrated with the tack 9. When the inner cylinder 2 starts to rotate clockwise and the inner cylinder 2 has finished rotating 180 degrees in the unlocking direction, the second display portion 5 indicating the unlocked state returns to the angular position of the display hole 13 as shown in FIG. . Therefore, the key is removed from the key hole at this angular position.
[0042]
When the present invention is applied to a cylinder lock of the type in which the unlocking key is turned 90 degrees and then turned back by the same angle and the key is removed, as shown in FIG. 7, for example, the unlocking stick 9 has a loose notch 8 in the locking direction. The relative angular position of the tack 9 with respect to the key hole 17 of the inner cylinder is set so as to abut against one end of the inner cylinder.
[0043]
In this state, when the key is inserted into the key hole 17 and the inner cylinder 2 is rotated in the clockwise direction (counterclockwise in FIG. 7) for locking, the tack 9 does not move in the floating notch 8 and is directly integrated with the display ring 3. When the inner cylinder is turned 90 degrees, as shown in FIG. 8 and as described above, the display ring is also turned 90 degrees and the first display portion 4 indicating the locked state is connected to the display hole 13. Align.
[0044]
When the combined key is turned 90 degrees from this state, as shown in FIG. 9 and as described above, only the stick 9 moves freely in the loose notch 8 with the display ring 3 left at the angular position shown in FIG. Then, it returns to the angular position shown in FIG.
[0045]
When the key is removed in this state, the display ring 3 maintains its angular position, so that the lock display is maintained until the next unlocking operation.
[0046]
When the key is inserted into the keyhole for unlocking and turned counterclockwise (clockwise in FIG. 9), as is apparent from FIG. 9, the display ring 3 is directly rotated integrally with the inner cylinder, When the inner cylinder 2 rotates 90 degrees, the second display unit 5 is aligned with the display hole 13 as shown in FIG.
[0047]
When the combined key is turned 90 degrees from this state, only the stick 9 moves in the loose notch 8 while leaving the display ring 3 in the angular position shown in FIG. Return to the angular position.
[0048]
As described above, the present invention is suitable for a cylinder lock having an α of 45 degrees that is widely used. However, according to the purpose, the cylinder lock can be rotated, for example, at a fixed angle of 45 degrees and turned back at the same angle. Needless to say, the present invention can also be applied to this type of cylinder lock.
[0049]
【The invention's effect】
As is apparent from the above description, the present invention is configured such that a display ring is rotatably fitted to the outer end outer peripheral portion of the inner cylinder, and the inner cylinder is respectively formed on the outer surface of the display ring along the circumferential direction thereof. Three sections with the angle α looking at the central axis are connected in series, and the two ends are colored differently to provide two display sections corresponding to the locked state and the unlocked state respectively. A loose notch is formed on the inner side of the peripheral surface over a certain angular range, and a hook that is slidably engaged with the loose notch is provided at the outer end of the outer peripheral surface of the inner cylinder. Since the difference in the angle at which the cylinder central axis is expected is 2α, there is an effect that it is possible to obtain a locking / unlocking display device that can handle two or more cylinder locks with different locking / unlocking operations by the same mechanism.
[0050]
In addition, since the display ring is rotatably fitted to the outer peripheral portion of the outer end of the inner cylinder, there are various effects such as making the display portion easier to see.
[Brief description of the drawings]
FIG. 1 is a front view of a cylinder lock provided with a locking / unlocking display device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line II-II in FIG.
FIG. 3 is an external perspective view showing the components of a cylinder lock provided with a locking / unlocking display device according to an embodiment of the present invention, mainly showing the outside of each member.
FIG. 4 is an external perspective view showing the components of a cylinder lock provided with a locking / unlocking display device according to one embodiment of the present invention, mainly showing the inside of each member.
FIG. 5 is a front view of a display ring.
FIG. 6 is a rear view of the display ring for explaining a change in engagement between the loose notch and the tack, and shows an unlocked display state.
FIG. 7 is a rear view of the display ring similar to FIG. 6 and shows a state in which only the tack is loosened in the loose notch.
8 is a rear view of the display ring similar to FIG. 6 and shows a state in which the display ring is rotated to the lock display angle position. FIG.
FIG. 9 is a rear view of the display ring similar to FIG. 6 and shows a state where only the tack has moved in the idle cutout and returned to the standby angle position.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inner cylinder 3 Display ring 4 1st display part 5 2nd display part 6 Intermediate | middle partition 8 Floating notch 9 Stick 11 Outer cylinder cap 12 Opening 13 Display hole

Claims (1)

施錠時鍵孔に挿入された合鍵を4αの角度回動してその角度位置で合鍵を抜き、解錠時には合鍵を同じ角度反対方向に回してその角度位置で合鍵を抜くタイプのシリンダ錠と、施錠時鍵孔に挿入された合鍵を2αの角度回動し、同じ角度反対方向に回し戻して合鍵を抜き、解錠時施錠時とは反対方向に2αの角度回動し、同じ角度施錠方向に回し戻して合鍵を抜く二つのタイプのシリンダ錠の施解錠状態を同じ機構で表示できるようにしたものであって、シリンダ錠の外筒と同軸に嵌合する内筒の外筒外端面から少し突出する外端外周部に表示リングを回動可能に嵌着し、この表示リングの外面に、その円周方向に沿って、夫々内筒中心軸を見込む角度がαの3つの区画を連設し、これら3つの区画の両端の区画に相互に異なる色彩を施して、夫々施錠状態及び解錠状態に対応する二つの表示部を設けると共に、表示リングの内周面の内側に一定の角度範囲にわたって遊動切欠を形成し、一方、内筒の外周面外端部に、半径方向に突出し、上記遊動切欠と遊動可能に係合するツクを突設し、また、上記遊動切欠とツクの内筒中心軸を見込む角度の差を2αとし、他方、浅いカップ状で底面に内筒の外端面を覗かせる開口と表示リングの表示部を覗かせる表示孔とを形成した外筒キャップをシリンダ錠の外端部を覆うように装着したことを特徴とするシリンダ錠の施解錠表示装置。 A cylinder lock of the type in which the key inserted in the key hole at the time of locking is rotated by an angle of 4α and the key is pulled out at that angular position, and when unlocking, the key is rotated in the opposite direction of the same angle and the key is pulled out at that angular position, The lock key inserted in the keyhole at the time of locking is rotated by an angle 2α, turned back in the opposite direction to the same angle, the key is pulled out, rotated at an angle 2α in the opposite direction to that at the time of unlocking, and the same angle locking direction The lock and unlock states of the two types of cylinder locks that are turned back to the unlocked key can be displayed with the same mechanism, and from the outer cylinder outer end surface of the inner cylinder that fits coaxially with the outer cylinder of the cylinder lock. A display ring is rotatably fitted on the outer peripheral part of the outer end that protrudes slightly , and three sections each having an angle α that looks at the central axis of the inner cylinder are connected to the outer surface of the display ring along the circumferential direction. And set different colors on both ends of these three sections, Two display portions corresponding to the locked state and the unlocked state are provided, and a loose notch is formed over a certain angular range inside the inner peripheral surface of the display ring, while the outer peripheral surface outer end portion of the inner cylinder is formed, A hook protruding in the radial direction and movably engaged with the floating notch is provided, and a difference in angle between the floating notch and the inner cylinder center axis of the hook is 2α, while a shallow cup shape is formed on the bottom surface. Locking and unlocking of a cylinder lock, characterized in that an outer cylinder cap formed with an opening through which the outer end surface of the inner cylinder can be seen and a display hole through which the display part of the display ring can be seen is mounted so as to cover the outer end of the cylinder lock Display device.
JP2002109750A 2002-04-11 2002-04-11 Cylinder lock lock / unlock display device Expired - Fee Related JP3718178B2 (en)

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JP2015132098A (en) * 2014-01-10 2015-07-23 株式会社ゴール Cylinder lock with lock/unlock display function
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