JP3276241B2 - Cylinder lock - Google Patents
Cylinder lockInfo
- Publication number
- JP3276241B2 JP3276241B2 JP8950694A JP8950694A JP3276241B2 JP 3276241 B2 JP3276241 B2 JP 3276241B2 JP 8950694 A JP8950694 A JP 8950694A JP 8950694 A JP8950694 A JP 8950694A JP 3276241 B2 JP3276241 B2 JP 3276241B2
- Authority
- JP
- Japan
- Prior art keywords
- peripheral surface
- cylinder lock
- plug
- inner peripheral
- case
- 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
Links
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、シリンダ錠の前面から
ドリル加工により、或いは、プラグに衝撃力を加える剪
断加工により、シリンダ錠の機能を破壊する悪質な犯罪
を防止するシリンダ錠に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder lock for preventing a malicious crime from destroying the function of the cylinder lock by drilling from the front surface of the cylinder lock or by shearing to apply an impact force to a plug.
【０００２】[0002]
【従来の技術】施錠されているシリンダ錠は、ドライバ
ピン孔内のドライバピンがプラグのタンブラピン孔に係
入し、プラグの回動を阻止している。鍵孔に正規のキー
を挿入すると、キーに押されたタンブラピンがドライバ
ピンを押動し、ドライバピンの端面がシャーライン（プ
ラグ外周面）と一致するので、プラグが回動可能にな
り、解錠角度に回動して解錠することができる。2. Description of the Related Art In a locked cylinder lock, a driver pin in a driver pin hole engages with a tumbler pin hole of a plug to prevent rotation of the plug. When a regular key is inserted into the keyhole, the tumbler pin pressed by the key pushes the driver pin, and the end face of the driver pin coincides with the shear line (outer peripheral surface of the plug). It can be unlocked by turning to the lock angle.
【０００３】施錠中のシリンダ錠を不正解錠するため
に、シリンダ錠の前面からドリル加工したり、プラグに
衝撃力を加えて剪断加工する悪質な犯罪が発生すること
があるので、シリンダ錠には、このような犯罪を防止で
きる防盗性の高いものでなければならない。ドリル加工
による犯罪を防止するため、シリンダ錠のドライバピン
孔及びタンブラピン孔の前方に、鋼球収容室を設け、高
い表面硬度を有する鋼球を鋼球収容室に回動可能に収容
し、ドリルによる穿孔を防止する手段が古くから知られ
ている（イギリス特許第６７８３号参照）。[0003] In order to illegally unlock a locked cylinder lock, there is a case where a malicious crime such as drilling from the front of the cylinder lock or shearing by applying an impact force to a plug may occur. Must be highly antitheft to prevent such crimes. In order to prevent crimes caused by drilling, a steel ball storage chamber is provided in front of the driver pin hole and tumbler pin hole of the cylinder lock, and a steel ball having a high surface hardness is rotatably stored in the steel ball storage chamber. Means for preventing perforations due to swelling have been known for a long time (see British Patent No. 6783).
【０００４】この穿孔防止手段を設けたシリンダ錠は、
図５の縦断面図に示すように、筒状のケース１には半径
方向に伸びる複数のドライバピン孔２がケース１の軸方
向に配列して設けられ、ドライバピン孔２の中には、ド
ライバピン３と、ドライバピン３をケース１の内周面よ
り突出する方向に付勢するスプリング４が挿入される。
ドライバピン孔２の前方には、ケース１の内周面に開口
する鋼球収容室５が設けられ、鋼球収容室５内には表面
の硬度が高い鋼球６が挿入される。[0004] The cylinder lock provided with the perforation prevention means is as follows.
As shown in the vertical cross-sectional view of FIG. 5, a plurality of driver pin holes 2 extending in the radial direction are provided in the cylindrical case 1 so as to be arranged in the axial direction of the case 1. A driver pin 3 and a spring 4 for urging the driver pin 3 in a direction protruding from the inner peripheral surface of the case 1 are inserted.
In front of the driver pin hole 2 is provided a steel ball storage chamber 5 which is open to the inner peripheral surface of the case 1, and a steel ball 6 having a high surface hardness is inserted into the steel ball storage chamber 5.
【０００５】ケース１内に回動可能に挿入されるプラグ
７には前面に開口する鍵孔８と、鍵孔８からプラグ７の
外周面に貫通し、プラグ７が施錠角度にあるときにドラ
イバピン３に相対するタンブラピン孔９が設けられ、タ
ンブラピン孔９にタンブラピン１０が挿入される。タン
ブラピン孔９の前方には、プラグ７の外周面に開口する
鋼球収容室１１が設けられ、鋼球収容室１１内には表面
の硬度が高い鋼球１２が挿入される。[0005] A plug 7 rotatably inserted into the case 1 has a key hole 8 opened on the front surface, and a key hole 8 penetrating from the key hole 8 to the outer peripheral surface of the plug 7. A tumbler pin hole 9 facing the pin 3 is provided, and a tumbler pin 10 is inserted into the tumbler pin hole 9. In front of the tumbler pin hole 9, there is provided a steel ball storage chamber 11 which is open on the outer peripheral surface of the plug 7, and a steel ball 12 having a high surface hardness is inserted into the steel ball storage chamber 11.
【０００６】鍵孔８にキーが挿入されていない施錠状態
では、スプリング４に押されたドライバピン３の端部が
タンブラピン孔９に係入してプラグ７の回動を阻止し、
ドライバピン３に押動されたタンブラピン１０の端部が
鍵孔８に突出している。鍵孔８に正規のキーを挿入する
と、キーに押されたタンブラピン１０がドライバピン３
を押動し、タンブラピン１０とドライバピン３の接触面
が、プラグ７の外周面に一致するのでプラグが回動可能
となり、キーを解錠角度に回動すると、プラグ７の端部
に固着されたタング１３と固定側の係止部材（図示しな
い）との係合が解除される。In the locked state in which no key is inserted into the keyhole 8, the end of the driver pin 3 pressed by the spring 4 engages with the tumbler pin hole 9 to prevent the rotation of the plug 7,
The end of the tumbler pin 10 pushed by the driver pin 3 projects into the keyhole 8. When a regular key is inserted into the keyhole 8, the tumbler pin 10 pressed by the key is
, The contact surface between the tumbler pin 10 and the driver pin 3 coincides with the outer peripheral surface of the plug 7, so that the plug can be turned. The engagement between the tongue 13 and the locking member (not shown) on the fixed side is released.
【０００７】シリンダ錠の施錠中に、シリンダ錠の前面
からシリンダ錠のシャーライン及びその近傍をドリルで
穿孔して不正解錠しようとしても、ドリルの刃先に当た
った鋼球６，１２が空転してドリルの切削加工を阻止す
る。鋼球６，１２の表面硬度は、ドリルの刃先を受付な
い高い硬度を有するので、鋼球６，１２を切削すること
もできない。かくして、ドリルによるシリンダ錠の破壊
が防止される。During locking of the cylinder lock, even if the shear line of the cylinder lock and the vicinity thereof are drilled from the front surface of the cylinder lock with a drill to attempt to unlock the cylinder lock, the steel balls 6 and 12 hitting the cutting edge of the drill run idle. To prevent drill cutting. Since the surface hardness of the steel balls 6 and 12 has a high hardness that does not accept the cutting edge of the drill, the steel balls 6 and 12 cannot be cut. Thus, breaking of the cylinder lock by the drill is prevented.
【０００８】プラグ７に衝撃力を加えるシリンダ錠の破
壊は、工具などによりプラグ７の前面に矢印Ｐ方向の衝
撃力を加え、シャーラインに係入しているドライバピン
３を剪断し、プラグ７を回動可能にするものである。プ
ラグ７の前面にシャーラインを被覆する被覆段部１４が
設けられているが、この被覆段部１４も剪断される。To break the cylinder lock, which applies an impact force to the plug 7, the impact force in the direction of arrow P is applied to the front surface of the plug 7 by a tool or the like to shear the driver pin 3 engaged with the shear line, Can be rotated. A covering step 14 for covering the shear line is provided on the front surface of the plug 7, and the covering step 14 is also sheared.
【０００９】[0009]
【発明が解決しようとする課題】ケース１に鋼球６を収
容する鋼球収容室５を設け、プラグ７に鋼球１２を収容
する鋼球収容室１１を設けたシリンダ錠では、ドリルに
よる穿孔破壊を防止することはできるが、シリンダ錠の
構造が複雑になる欠点がある。又、プラグ７に衝撃力を
加えてシャーラインを破壊する悪質犯罪を防止すること
はできない。本発明は、ドリルによる穿孔破壊を防止す
ると共に、プラグに衝撃を加える破壊をも防止すること
ができる防盗性に優れたシリンダ錠を提供することを第
１の目的とし、しかも、防盗性に優れたシリンダ錠をコ
ンパクトで使用し易い構造とすることを第２の目的とす
る。In a cylinder lock in which a steel ball housing chamber 5 for housing a steel ball 6 is provided in a case 1 and a steel ball housing chamber 11 for housing a steel ball 12 is provided in a plug 7, a drill hole is used. Although breakage can be prevented, there is a disadvantage that the structure of the cylinder lock is complicated. Further, it is impossible to prevent a malicious crime that destroys the shear line by applying an impact force to the plug 7. The first object of the present invention is to provide a cylinder lock excellent in anti-theft property capable of preventing the breakage caused by drilling and also preventing the destruction by applying an impact to the plug. A second object is to make the cylinder lock compact and easy to use.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、筒状に形成され、内周面より半径方向に
伸びるドライバピン孔にドライバピンが挿入されるケー
スと、該ケースに回動可能に挿入され、前面に鍵孔が開
口し、該鍵孔より外周面に貫通し該ドライバピン孔に相
対するタンブラピン孔にタンブラピンが挿入されるプラ
グとを備えたシリンダ錠において、該ケースの前面と該
ドライバピン孔の間に、該ケースの内周面に交差する受
圧面と、該受圧面より該ケースの前面に伸びる大径内周
面を設け、該プラグの外周面に、該受圧面に滑り接触す
る膨出部を設けると共に、該膨出部に、該プラグの外周
面の延長線上に位置する鋼球を回動可能に収容する鋼球
収容室を該大径内周面により覆われた状態で設け、該膨
出部の前端部に該大径内周面より大径の被覆段部を設
け、該被覆段部が軸方向に延長する該大径内周面の前方
において該大径内周面を被覆することを特徴とするもの
である。To achieve the above object, the present invention provides a case in which a driver pin is inserted into a driver pin hole formed in a cylindrical shape and extending in a radial direction from an inner peripheral surface; to be rotatably inserted, keyhole is open to the front, the cylinder lock having a plug tumbler pins are inserted into opposite tumbler pin holes penetrating the driver pin holes on the outer peripheral surface from said key hole, the between the front and the <br/> driver pin hole of the case, a pressure receiving surface that intersects the inner peripheral surface of the case, the large diameter inner peripheral surface from the receiving pressure surface extending in front of the case is provided, of the plug an outer peripheral surface, provided with a bulging portion for sliding contact with the pressure receiving surface, the bulging portion, the steel balls accommodating chamber for accommodating a steel ball located on the extension of the outer peripheral surface of the plug rotatably provided in a state covered by the large diameter inner peripheral surface, a front end portion of the bulged portion Setting the diameter of the covering step portion than the large diameter inner peripheral surface
In addition, the covering step portion extends in the axial direction in front of the large-diameter inner peripheral surface.
In is characterized in the Turkey to covering the large diameter inner peripheral surface.
【００１１】上記鋼球収容室は、上記膨出部と上記被覆
段部間において形成される（請求項２）。The steel ball accommodating chamber is formed between the bulging portion and the covering step portion.
【００１２】[0012]
【作用】上記のように構成されたシリンダ錠は、従来の
シリンダ錠と同様に施錠，解錠される。施錠中に、シリ
ンダ錠の前面にドリルを当てて、シリンダ錠のシャーラ
インを穿孔破壊しようとしても、ドリルの刃先がプラグ
の鋼球収容室内の鋼球に当たるので、切削が阻止され
る。The cylinder lock constructed as described above is locked and unlocked in the same manner as a conventional cylinder lock. During locking, if a drill is applied to the front surface of the cylinder lock to attempt to pierce and break the shear line of the cylinder lock, the cutting edge is hit by the steel ball in the steel ball storage chamber of the plug, and cutting is prevented.
【００１３】プラグに衝撃力を加えてシリンダ錠の後方
に押し込み、シャーラインに係合するドライバピンを剪
断しようとしても、ケースの受圧面がこの衝撃力を受け
止めるので、プラグが押し込まれてドライバピンが剪断
される虞はない。[0013] Even if an impact force is applied to the plug to push the plug behind the cylinder lock to shear the driver pin engaged with the shear line, the pressure receiving surface of the case receives the impact force. There is no risk of shearing.
【００１４】[0014]
【実施例】本発明の実施例について図面を参照して説明
すると、図１はシリンダ錠の縦断面図、図２は図１のＸ
−Ｘ断面図、図３はシリンダ錠の一部破断正面図であ
る。図１に示すように、筒状のケース１５の上下２箇所
には、複数のドライバピン孔２がケース１５の軸方向に
配列して設けられる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a cylinder lock, and FIG.
-X sectional view, FIG. 3 is a partially cutaway front view of the cylinder lock. As shown in FIG. 1, a plurality of driver pin holes 2 are provided at two locations above and below a cylindrical case 15 so as to be arranged in the axial direction of the case 15.
【００１５】ケース１５の外面の上端部及び下端部に
は、各ドライバピン孔２に重なる溝１６が設けられ、溝
１６の底面には、各ドライバピン孔２を被覆するカバー
１７が嵌着され、ドライバピン孔２の中に挿入されるド
ライバピン３とカバー１７との間に、スプリング４が挿
入され、ドライバピン３はケース１の内周面より突出す
る方向に付勢される（図１参照）。上記のような上下２
列のドライバピン３と同様に、図３に示す矢印Ｙに平行
な軸心を有する複数のドライバピン（図示しない）がケ
ース１５の長手方向に配列される第３のドライバピン列
が設けられる。At the upper end and the lower end of the outer surface of the case 15, grooves 16 are provided so as to overlap the respective driver pin holes 2. A cover 17 for covering the respective driver pin holes 2 is fitted to the bottom of the groove 16. A spring 4 is inserted between the driver pin 3 inserted into the driver pin hole 2 and the cover 17, and the driver pin 3 is urged in a direction to protrude from the inner peripheral surface of the case 1 (FIG. 1). reference). Upper and lower 2 as above
Similar to the driver pins 3 in the row, a third driver pin row is provided in which a plurality of driver pins (not shown) having an axis parallel to the arrow Y shown in FIG.
【００１６】上下のドライバピン孔２の列の前方には、
ケース１５の内周面１５ａに対して直角な受圧面１８
が、内周面１５ａより外方に向けて設けられ、受圧面１
８の周縁部からシリンダ錠の前面に伸びる大径内周面１
９が設けられる。大径内周面１９の前端部には、大径内
周面１９よりも大きい径を有する段部２０が設けられ
る。In front of a row of upper and lower driver pin holes 2,
Pressure receiving surface 18 perpendicular to inner peripheral surface 15a of case 15
Are provided outward from the inner peripheral surface 15a, and the pressure receiving surface 1
Large-diameter inner peripheral surface 1 extending from the periphery of 8 to the front of the cylinder lock
9 are provided. At the front end of the large-diameter inner peripheral surface 19, a step portion 20 having a larger diameter than the large-diameter inner peripheral surface 19 is provided.
【００１７】ケース１５内に回動可能に挿入されるプラ
グ２１には、前面に開口する鍵孔２２と、鍵孔２２から
プラグ２１の外周面２１ａに貫通し、プラグ２１が施錠
角度にあるときにドライバピン３に相対するタンブラピ
ン孔９が設けられ、タンブラピン孔９にタンブラピン１
０が挿入されることは従来例と同様である（図１参
照）。鍵孔２２の断面形状は、タンブラピン孔９の軸心
方向に厚さを有する偏平形状であるので、タンブラピン
孔９の軸心方向に鍵孔の巾を有するシリンダ錠に比較し
て、プラグ２１の外径を小さくすることができ、シリン
ダ錠全体をコンパクトにすることができる利点がある。A plug 21 rotatably inserted into the case 15 has a key hole 22 opened on the front surface and a key hole 22 which penetrates through the outer peripheral surface 21a of the plug 21 when the plug 21 is at a locking angle. A tumbler pin hole 9 facing the driver pin 3 is provided in the tumbler pin hole 9.
Inserting 0 is the same as in the conventional example (see FIG. 1). Since the cross-sectional shape of the keyhole 22 is a flat shape having a thickness in the axial direction of the tumbler pin hole 9, the cross-sectional shape of the plug 21 is smaller than that of the cylinder lock having the width of the keyhole in the axial direction of the tumbler pin hole 9. There is an advantage that the outer diameter can be reduced and the entire cylinder lock can be made compact.
【００１８】ドライバピン３に相対するタンブラピン１
０と同様に、第３のドライバピン列の各ドライバピンに
相対するタンブラピン２３（図３参照）が設けられる。
図２に示すように、鍵孔２２が矢印Ｙの反対方向に偏位
しているので、鍵孔２２の巾方向の延長線上に第３のタ
ンブラピン２３列を設けるスペースが生じる。この第３
のタンブラピン２３列は、キーコードを増加させるため
に設けたものであり、本発明には直接関係はない。Tumbler pin 1 facing driver pin 3
Similarly to the case of 0, a tumbler pin 23 (see FIG. 3) corresponding to each driver pin of the third driver pin row is provided.
As shown in FIG. 2, since the keyhole 22 is deviated in the direction opposite to the arrow Y, there is a space for providing the third row of tumbler pins 23 on an extension of the keyhole 22 in the width direction. This third
Are provided to increase the number of key codes, and are not directly related to the present invention.
【００１９】プラグ２１の外周面には、受圧面１８及び
大径内周面１９に滑り接触する膨出部２４が設けられ、
膨出部２４の前端部には、ケース１５の段部２０に挿入
される大径内周面１９よりも大径の被覆段部２９が設け
られる。この被覆段部２９は、軸方向に延長する大径内
周面１９の前方において大径内周面１９と膨出部２４の
内面を被覆して保護するカバーの役目を果たす。On the outer peripheral surface of the plug 21, there is provided a bulging portion 24 which comes into sliding contact with the pressure receiving surface 18 and the large-diameter inner peripheral surface 19,
At the front end of the bulging portion 24, a covering step portion 29 having a larger diameter than the large diameter inner peripheral surface 19 inserted into the step portion 20 of the case 15 is provided. The covering step 29 has a large diameter extending in the axial direction.
In front of the peripheral surface 19, it serves as a cover for covering and protecting the large-diameter inner peripheral surface 19 and the inner surface of the bulging portion 24.
【００２０】膨出部２４には、被覆段部２９と膨出部２
４間において、上下のタンブラピン１０の前方に位置す
る有底の鋼球収容室２５と、第３列目のタンブラピン２
３の前方に位置する有底の鋼球収容室２６が設けられ
（図２参照）、鋼球収容室２５，２６には、表面硬度が
切削工具を受付ない高硬度に加工された鋼球２７，２８
が挿入される。鋼球収容室２５，２６はケース１５の大
径内周面１９により覆われている。鋼球２７，２８の大
きさは、鋼球収容室２５，２６よりも僅かに小さいの
で、鋼球２７，２８は鋼球収容室２５，２６内で回動可
能である。The bulging portion 24 has a covering step portion 29 and a bulging portion 2.
4 and a bottomed steel ball storage chamber 25 located in front of the upper and lower tumbler pins 10 and the third row of tumbler pins 2.
A steel ball storage chamber 26 with a bottom is provided in front of the steel ball storage chamber 3 (see FIG. 2). The steel ball storage chambers 25 and 26 have steel balls 27 processed to have a high surface hardness not accepting a cutting tool. , 28
Is inserted. The steel ball storage chambers 25 and 26 are
It is covered by a radial inner peripheral surface 19. Since the size of the steel balls 27, 28 is slightly smaller than the steel ball storage chambers 25, 26, the steel balls 27, 28 are rotatable in the steel ball storage chambers 25, 26.
【００２１】プラグ２１の後部側の外周面に環状凹部３
１を周設し、環状凹部３１にストッパリング３２を嵌着
する。従って、プラグ２１はケース１５の軸方向には移
動不能である。プラグ２１の後端部に設けられる軸部３
３は、外周面を切欠する２つの平面部３４により非円形
に形成され、外周面に雄ねじ３５が設けられる（図４参
照）。An annular concave portion 3 is formed on the outer peripheral surface on the rear side of the plug 21.
1 and a stopper ring 32 is fitted into the annular concave portion 31. Therefore, the plug 21 cannot move in the axial direction of the case 15. Shaft 3 provided at rear end of plug 21
3 is formed in a non-circular shape by two flat portions 34 notching the outer peripheral surface, and a male screw 35 is provided on the outer peripheral surface (see FIG. 4).
【００２２】軸部３５には、同形状の非円形孔を有する
回動量規制カム３６と、従来のタング１３と同様のタン
グ（図示しない）が挿通され、雄ねじ３５に螺合するナ
ット（図示しない）によって軸部３５に締着される。回
動量規制カム３６には、プラグ２１を解錠角度から施錠
角度までの回動に規制するカム面３６ａが設けられる。A rotation amount regulating cam 36 having a non-circular hole of the same shape and a tongue (not shown) similar to the conventional tongue 13 are inserted through the shaft portion 35, and a nut (not shown) screwed to the male screw 35. ) Is fastened to the shaft 35. The rotation amount regulating cam 36 is provided with a cam surface 36a that regulates the rotation of the plug 21 from the unlocking angle to the locking angle.
【００２３】次に、以上のように構成されたシリンダ錠
の作用を説明する。施錠中のシリンダ錠の鍵孔２２にキ
ーＫを挿入すると、キーＫの表面及び裏面に配列して設
けられたキーコード用の凹部３０がタンブラピン１０を
押動し、キーＫの一方の端面に設けられたキーコード用
の凹部（図示しない）がタンブラピン２３を押動する。Next, the operation of the thus configured cylinder lock will be described. When the key K is inserted into the key hole 22 of the locked cylinder lock, the key code recesses 30 arranged on the front and back surfaces of the key K push the tumbler pin 10, and the one end face of the key K The provided key code recess (not shown) pushes the tumbler pin 23.
【００２４】押動されたタンブラピン１０，２３の端面
がシャーラインと一致し、プラグ２１が回動可能とな
り、キーＫによってプラグ２１を解錠角度に回動する
と、プラグ２１の後端部に設けられたタングのロックが
解除され、開扉可能になる。プラグ２１を施錠角度に回
動してキーＫを抜き取ると、ドライバピン３がタンブラ
ピン孔９に係入し（第３列のドライバピンも同様に動作
し）シリンダ錠が施錠状態になる。When the end faces of the tumbler pins 10 and 23 pushed coincide with the shear line, the plug 21 can be turned. When the plug 21 is turned by the key K to the unlocking angle, it is provided at the rear end of the plug 21. The locked tongue is unlocked and the door can be opened. When the plug 21 is rotated to the locking angle and the key K is removed, the driver pin 3 engages with the tumbler pin hole 9 (the third row of driver pins operates in the same manner), and the cylinder lock is locked.
【００２５】施錠中に、シリンダ錠の前面にドリルを当
てて、シリンダ錠のシャーラインを穿孔破壊しようとし
ても、ドリルの刃先が鋼球２６，２８に当たり、高硬度
の鋼球２６，２８が空転するので、ドリルによってシリ
ンダ錠を不正解錠する犯罪が阻止される。During locking, if a drill is applied to the front surface of the cylinder lock to attempt to pierce and break the shear line of the cylinder lock, the cutting edge of the drill hits the steel balls 26, 28, and the high hardness steel balls 26, 28 spin. The crime of illegally unlocking the cylinder lock by the drill is prevented.
【００２６】プラグ２１に衝撃力を加えてシリンダ錠の
後方に押し込み、シャーラインに係合するドライバピン
３（第３列のドライバピンを含む）を剪断しようとして
も、ケース１５の受圧面１８がこの衝撃力を受け止める
ので、ドライバピン３が剪断される虞はない。図１に示
すように、ケース１５は、受圧面１８から後面までの距
離が長いので、ケース１５が剪断される虞はない。Even if an impact force is applied to the plug 21 and the plug 21 is pushed behind the cylinder lock, and the driver pins 3 (including the third row of driver pins) engaging with the shear line are to be sheared, the pressure receiving surface 18 of the case 15 is Since this impact force is received, there is no possibility that the driver pin 3 will be sheared. As shown in FIG. 1, the case 15 has a long distance from the pressure receiving surface 18 to the rear surface.
【００２７】[0027]
【発明の効果】本発明は以上のように構成されているの
で、下記に示すように効果を奏する。 (1) 鋼球がシャーラインを保護する位置にあるので、ド
リルを使用した不正解錠を阻止する構造が簡単になる。 (2) ケースに受圧面を設けたので、プラグに衝撃力を与
えてシャーライン上のドライバピンを破壊する不正解錠
も阻止される。上記いずれの不正解錠も阻止されるの
で、シリンダ錠の防盗性が極めて高くなる。 (3) 鍵孔の巾方向を、タンブラピンに対して直角にした
ので、防盗性の極めて高いシリンダ錠をコンパクトにす
ることができた。The present invention is configured as described above, and has the following effects. (1) Since the steel ball is positioned to protect the shear line, the structure for preventing unauthorized unlocking using a drill is simplified. (2) Since the pressure receiving surface is provided on the case, an unauthorized unlocking that applies an impact force to the plug and destroys the driver pin on the shear line is also prevented. Since any unauthorized unlocking is prevented, the anti-theft property of the cylinder lock becomes extremely high. (3) Since the width direction of the keyhole is perpendicular to the tumbler pin, the cylinder lock with extremely high antitheft performance can be made compact.
【図１】シリンダ錠の縦断面図である。FIG. 1 is a longitudinal sectional view of a cylinder lock.
【図２】図１のＸ−Ｘ断面図である。FIG. 2 is a sectional view taken along line XX of FIG.
【図３】シリンダ錠の一部破断正面図である。FIG. 3 is a partially cutaway front view of the cylinder lock.
【図４】シリンダ錠の背面図である。FIG. 4 is a rear view of the cylinder lock.
【図５】穿孔防止型のシリンダ錠の従来例を示す縦断面
図である。FIG. 5 is a longitudinal sectional view showing a conventional example of a perforation prevention type cylinder lock.
２ ドライバピン孔 ３ ドライバピン ９ タンブラピン孔 １０ タンブラピン １５ ケース １５ａ 内周面 １８ 受圧面 １９ 大径内周面 ２１ プラグ ２２ 鍵孔 ２４ 膨出部 ２５，２７ 鋼球収容室 ２６，２８ 鋼球 ２９ 被覆段部 ３３ 軸部 2 driver pin hole 3 driver pin 9 tumbler pin hole 10 tumbler pin 15 case 15a inner peripheral surface 18 pressure receiving surface 19 large diameter inner peripheral surface 21 plug 22 key hole 24 bulging portion 25, 27 steel ball storage chamber 26, 28 steel ball 29 coating Step 33 Shaft
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E05B 15/16 E05B 17/00 E05B 27/10 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) E05B 15/16 E05B 17/00 E05B 27/10
Claims (2)
伸びるドライバピン孔にドライバピンが挿入されるケー
スと、該ケースに回動可能に挿入され、前面に鍵孔が開
口し、該鍵孔より外周面に貫通し該ドライバピン孔に相
対するタンブラピン孔にタンブラピンが挿入されるプラ
グとを備えたシリンダ錠において、該 ケースの前面と該ドライバピン孔の間に、該ケースの
内周面に交差する受圧面と、該受圧面より該ケースの前
面に伸びる大径内周面を設け、該 プラグの外周面に、該受圧面に滑り接触する膨出部を
設けると共に、該膨出部に、該プラグの外周面の延長線
上に位置する鋼球を回動可能に収容する鋼球収容室を該
大径内周面により覆われた状態で設け、該膨出部の前端
部に該大径内周面より大径の被覆段部を設け、該被覆段
部が軸方向に延長する該大径内周面の前方において該大
径内周面を被覆することを特徴とするシリンダ錠。1. A case in which a driver pin is inserted into a driver pin hole formed in a cylindrical shape and extending in a radial direction from an inner peripheral surface, a key hole is opened in a front surface rotatably inserted into the case, in the cylinder lock with a plug said key hole than through the outer peripheral surface tumbler pins on opposite tumbler pin hole in the driver pin hole is inserted, between the front and the driver pin hole of the case, among the case a pressure receiving surface intersecting the peripheral surface, a large diameter inner peripheral surface from the receiving pressure surface extending in front of the case is provided, on the outer peripheral surface of the plug, provided with a bulging portion for sliding contact with the pressure receiving surface, bulging the output section, the steel balls accommodating chamber for accommodating a steel ball located on the extension of the outer peripheral surface of the plug rotatably
Provided in a state covered by the large diameter inner peripheral surface, provided the diameter of the covering step portion than the large diameter inner peripheral surface at the front end portion of the bulged portion, the coating stage
Part is a cylinder lock, wherein the benzalkonium be covering the large diameter inner peripheral surface in the front of the large diameter inner peripheral surface extending in the axial direction.
覆段部間において形成されていることを特徴とする請求
項１記載のシリンダ錠。2. The cylinder lock according to claim 1, wherein the steel ball accommodating chamber is formed between the bulging portion and the covering step portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8950694A JP3276241B2 (en) | 1994-04-27 | 1994-04-27 | Cylinder lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8950694A JP3276241B2 (en) | 1994-04-27 | 1994-04-27 | Cylinder lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07299757A JPH07299757A (en) | 1995-11-14 |
| JP3276241B2 true JP3276241B2 (en) | 2002-04-22 |
Family
ID=13972675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8950694A Expired - Fee Related JP3276241B2 (en) | 1994-04-27 | 1994-04-27 | Cylinder lock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3276241B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535967A (en) * | 2011-11-22 | 2012-07-04 | 董义盛 | Interlocking lock core |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4550301B2 (en) * | 2001-03-09 | 2010-09-22 | 良三 黒田 | Locking device |
| CN104563616B (en) * | 2013-10-28 | 2017-04-26 | 王晓荡 | Idling and locking lock cylinder shielding device anti-theft lock |
-
1994
- 1994-04-27 JP JP8950694A patent/JP3276241B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535967A (en) * | 2011-11-22 | 2012-07-04 | 董义盛 | Interlocking lock core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07299757A (en) | 1995-11-14 |
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