JP4516305B2 - Variable lever tumbler lock - Google Patents

Variable lever tumbler lock Download PDF

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JP4516305B2
JP4516305B2 JP2003396000A JP2003396000A JP4516305B2 JP 4516305 B2 JP4516305 B2 JP 4516305B2 JP 2003396000 A JP2003396000 A JP 2003396000A JP 2003396000 A JP2003396000 A JP 2003396000A JP 4516305 B2 JP4516305 B2 JP 4516305B2
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tumbler
key
support shaft
engaging
engagement
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JP2005155195A (en
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晶 三宅
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美和ロック株式会社
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Description

この発明は、可変レバータンブラー錠に係り、特に、鍵違いの変換機構を合理的に変更して構造を簡単にすると共に、外形寸法を小さくすることができる可変レバータンブラー錠に関する。   The present invention relates to a variable lever tumbler lock, and more particularly, to a variable lever tumbler lock that can rationally change a key difference conversion mechanism to simplify the structure and reduce the outer dimensions.

本出願人は、先に、後記特許文献1〜5を以て、新規な可変レバータンブラー錠を提案した。   The present applicant has previously proposed a novel variable lever tumbler lock with Patent Documents 1 to 5 described later.

これらの可変レバータンブラー錠は、レバータンブラー錠の各レバータンブラーを、略C字形で相互に重合するタンブラーAとタンブラーBとを組合わせたものとする一方、支軸をその両端に突設した偏芯軸の軸線回りを回動できるように支承し、一端を支軸に遊嵌させたタンブラーAには合鍵の鍵溝との係合部を形成すると共に、これを合鍵と干渉する方向に付勢し、また、一端を支軸に回動自在に嵌合させたタンブラーBの自由端部外側端縁に解錠切欠を形成すると共に、タンブラーAの合鍵側端縁との係合部と重合する部分を合鍵と干渉しないように成形し、一方、タンブラーAの自由端部内側縁部のタンブラーBと対向する側に係合突起を、また、タンブラーBの内側縁部には支軸を中心とする円弧上にタンブラーAの係合突起と係合可能な係合凹部の複数を夫々形成すると共に、係合凹部の形成角度位置を、合鍵の側端縁に形成された複数種類の深さの鍵溝にタンブラーAの係合部が夫々係合したとき、その係合突起と整合するように設定し、他方、支軸を外方に付勢する一方、内筒の内端部に、内筒の半径方向に移動可能で、外部から操作可能なスイッチ部材を支軸の外側からこれに当接可能に設けたものである。   In these variable lever tumbler locks, each lever tumbler of the lever tumbler lock is a combination of a tumbler A and a tumbler B that are superposed on each other in a substantially C-shape, while a support shaft protrudes from both ends. The tumbler A, which is supported so as to be able to rotate around the axis of the core shaft and has one end loosely fitted to the support shaft, is formed with an engaging portion with a key groove of the key, and is attached in a direction that interferes with the key. In addition, an unlocking notch is formed at the outer edge of the free end of the tumbler B, one end of which is pivotably fitted to the support shaft, and the engagement portion with the engaging side edge of the tumbler A is overlapped The part to be molded is shaped so as not to interfere with the key, and on the other hand, the engagement protrusion is on the side opposite to the tumbler B on the inner edge of the tumbler A, and the support shaft is centered on the inner edge of the tumbler B. Engagement protrusions of tumbler A on the arc A plurality of possible engaging recesses are formed, and the forming angular positions of the engaging recesses are respectively engaged with the engaging portions of the tumbler A in a plurality of types of key grooves formed on the side edge of the key. When this is done, it is set to align with the engaging projection, and on the other hand, the support shaft is urged outward, while the inner end of the inner cylinder can be moved in the radial direction of the inner cylinder and can be operated from the outside. A simple switch member is provided so as to be able to abut on this from the outside of the support shaft.

そして、この発明を理解するためには、上記可変レバータンブラー錠の構造を理解する必要があるが、その構造は上記各特許文献に記載されているので、ここでは簡単に説明する。   And in order to understand this invention, it is necessary to understand the structure of the said variable lever tumbler lock, Since the structure is described in said each patent document, it demonstrates easily here.

図1において符号1はレバータンブラーを示し、このレバータンブラー1を、略C字形で相互に重合するタンブラーA1AとタンブラーB1Bとを組合わせたものとする一方、図で上方に付勢された支軸2をその両端に突設した偏芯軸3(図2参照)の軸線回りを回動できるように支承する。   In FIG. 1, reference numeral 1 denotes a lever tumbler. The lever tumbler 1 is a combination of a tumbler A1A and a tumbler B1B that are superposed on each other in a substantially C shape, and a support shaft biased upward in the figure. 2 is supported so that it can rotate around the axis of an eccentric shaft 3 (see FIG. 2) protruding from both ends thereof.

なお、図1においてタンブラーB1Bにハッチングを施したのはタンブラーA1Aと紛れないようにしただけであって、実際にハッチングが施されているわけではない。図1においてはタンブラーB1Bが手前側に、タンブラーA1Aはその裏側に配置されている。   In FIG. 1, the tumbler B1B is hatched only so as not to be confused with the tumbler A1A, and is not actually hatched. In FIG. 1, the tumbler B1B is disposed on the near side, and the tumbler A1A is disposed on the back side thereof.

また、図1に示すタンブラーA1AのC字形はその開口端が相互に接続されているが、これはタンブラーの剛性を高めるためであって、このようにC字形の開口端を接続したものもC字形の概念に含めるものとする。   In addition, the C-shaped tumbler A1A shown in FIG. 1 has its open ends connected to each other, but this is to increase the rigidity of the tumbler. Included in the concept of glyph.

一方、一端を縦長の逃げ孔4を介して支軸2に遊嵌させたタンブラーA1Aには、合鍵5の鍵溝6との係合部7を形成すると共に、これを合鍵5と干渉する方向、図1では反時計方向に付勢し、また、一端を支軸に回動自在に嵌合させたタンブラーB1Bの自由端部外側端縁に解錠切欠8を形成すると共に、タンブラーA1Aの合鍵側端縁との係合部7と重合する部分を合鍵と干渉しないように成形する。   On the other hand, the tumbler A1A whose one end is loosely fitted to the support shaft 2 through the vertically long escape hole 4 is formed with an engaging portion 7 with the key groove 6 of the key 5 and the direction in which the key 5 interferes therewith. In FIG. 1, an unlocking notch 8 is formed on the outer edge of the free end portion of the tumbler B1B that is urged counterclockwise and is rotatably fitted on one end of the support shaft, and the key of the tumbler A1A is locked. A portion overlapping with the engaging portion 7 with the side edge is molded so as not to interfere with the key.

他方、タンブラーA1Aの自由端部内側縁部のタンブラーB1Bと対向する側に係合突起9を、また、タンブラーB1Bの内側縁部には支軸2を中心とする円弧上にタンブラーAの係合突起9と係合可能な係合凹部11の複数を夫々形成すると共に、係合凹部11の形成角度位置を、合鍵5の側端縁に形成された複数種類の深さの鍵溝6にタンブラーAの係合部が夫々係合したとき、その係合突起と整合するように設定する。   On the other hand, the engagement protrusion 9 is formed on the side of the tumbler A1A facing the tumbler B1B at the inner edge of the free end, and the tumbler A is engaged on the inner edge of the tumbler B1B on an arc centered on the support shaft 2. A plurality of engaging recesses 11 that can be engaged with the protrusions 9 are respectively formed, and the formation angular positions of the engaging recesses 11 are tumbled in a plurality of types of key grooves 6 formed at side edges of the key 5. When the engaging portions of A are respectively engaged, the setting is made so as to align with the engaging protrusions.

図1は一の合鍵を鍵孔に差込んだ状態を示し、したがって解錠切欠8がロッキングバー12と角度的に整合している。   FIG. 1 shows a state in which one key is inserted into the keyhole, so that the unlocking notch 8 is angularly aligned with the locking bar 12.

この状態で、図2及び図3に示すように、シリンダの内端側から変換ピン13を挿入して、スイッチ部材14及び支軸2の内端に嵌装されたスペーサリング15を介して支軸2に矢印方向、すなわち下向きの力を印加すると、支軸2は偏芯軸3の中心軸cの回りを反時計方向に回動する。   In this state, as shown in FIGS. 2 and 3, the conversion pin 13 is inserted from the inner end side of the cylinder, and is supported via the switch member 14 and the spacer ring 15 fitted to the inner end of the support shaft 2. When a force in the direction of the arrow, that is, a downward force is applied to the shaft 2, the support shaft 2 rotates around the central axis c of the eccentric shaft 3 in the counterclockwise direction.

なお、図1はタンブラー1をシリンダの内端側から見ているので、図1においては、支軸2は上記中心軸cの回りを時計方向に回動する。   In FIG. 1, since the tumbler 1 is viewed from the inner end side of the cylinder, in FIG. 1, the support shaft 2 rotates around the central axis c in the clockwise direction.

その結果、支軸2はタンブラーA1Aの一端に形成された前記縦長の逃げ孔4を遊嵌するので、タンブラーAを図1の位置に残した状態でタンブラーB11Bのみを下降させる(図示せず)。   As a result, the support shaft 2 loosely fits the vertically long escape hole 4 formed at one end of the tumbler A1A, so that only the tumbler B11B is lowered with the tumbler A left in the position of FIG. 1 (not shown). .

図1から明らかなように、解錠切欠8とロッキングバー12とは角度的に整合しているから、上記タンブラーB1Bの下降は可能であり、タンブラーA1Aの係合突起9は係合凹部11から抜き外される。   As is clear from FIG. 1, the unlocking notch 8 and the locking bar 12 are angularly aligned, so that the tumbler B1B can be lowered, and the engaging projection 9 of the tumbler A1A is separated from the engaging recess 11. It is removed.

この状態では一の合鍵を抜くことができるので、一の合鍵を鍵孔から抜くと、タンブラーA1Aはその付勢力により図1で反時計方向に回動するが(図示せず)、他の新たな合鍵を挿入することにより、タンブラーA1Aは図1とは異なる新たな角度位置に迄回動する。   In this state, one key can be removed, so when one key is removed from the keyhole, the tumbler A1A is rotated counterclockwise in FIG. By inserting the correct key, the tumbler A1A is rotated to a new angular position different from that in FIG.

この状態で前記変換ピン13(図3参照)を抜いて支軸2を元の位置に戻すと、タンブラーB1Bも連れ動いて図1に示す位置に戻り、このとき係合突起は新たな係合凹部と係合するに致り、タンブラーA1AとタンブラーB1Bとの係合の態様が前とは異なり、したがって鍵違いを変更することができるのである。
特願2001−379268 特願2002−014274 特願2002−113868 特願2002−119781 特願2002−131568
In this state, when the conversion pin 13 (see FIG. 3) is pulled out and the support shaft 2 is returned to the original position, the tumbler B1B is also moved back to the position shown in FIG. In engaging with the recess, the manner of engagement between the tumbler A1A and the tumbler B1B is different from the previous one, and therefore the key difference can be changed.
Japanese Patent Application 2001-379268 Japanese Patent Application No. 2002-014274 Japanese Patent Application 2002-113868 Japanese Patent Application No. 2002-119781 Japanese Patent Application No. 2002-131568

上記した構造の可変レバータンブラー錠は、図4に示すように、外筒16の基部に膨出部17を突出形成し、この膨出部17内にスイッチ部材14を例えば図4で上下方向に案内できる案内洞18を設けている。   As shown in FIG. 4, the variable lever tumbler lock having the above-described structure has a bulging portion 17 protruding from the base portion of the outer cylinder 16, and the switch member 14 is placed in the bulging portion 17 in the vertical direction in FIG. A guide cave 18 that can be guided is provided.

なお、図4で外筒の下方に形成された膨出部は、デザイン上必要なので設けられた膨出部で、可変レバータンブラー錠の必須の構成要素ではない。   In addition, the bulging part formed below the outer cylinder in FIG. 4 is a bulging part provided because it is necessary for design, and is not an essential component of the variable lever tumbler lock.

しかしながら、外筒に形成された膨出部は、その存在故に可変レバータンブラー錠の構造を複雑にするし、また、外筒の加工が面倒になり、加えて、デザイン上不利である、等種々の不都合の原因となっている。   However, the bulging part formed in the outer cylinder complicates the structure of the variable lever tumbler lock because of its existence, and the processing of the outer cylinder becomes troublesome, and in addition, it is disadvantageous in design, etc. Cause inconvenience.

そこで、この発明は、鍵違い変換機構を合理的に変更し、外筒に膨出部を形成しなくても済む可変レバータンブラー錠を提供し、以て上記した種々の不都合を解消することを目的としている。   Therefore, the present invention provides a variable lever tumbler lock that can rationally change the key difference conversion mechanism and eliminates the need to form a bulging portion on the outer cylinder, thereby eliminating the various inconveniences described above. It is aimed.

上記の目的を達成するため、この発明は、レバータンブラー錠の各レバータンブラーを、略C字形で相互に重合するタンブラーAとタンブラーBとを組合わせたものとする一方、中心軸線が外方に向かうように付勢された支軸を、その両端に突設した偏芯軸の軸線回りを回動できるように支承し、一端に開口した逃げ孔を支軸に遊嵌可能に係合させたタンブラーAには合鍵の鍵溝との係合部を形成すると共に、これを合鍵と干渉する方向に付勢し、また、一端を支軸に回動自在に嵌合させたタンブラーBの自由端部外側端縁に解錠切欠を形成して、一の合鍵を鍵孔に挿入したとき各タンブラーBがロッキングバーと角度的に整合するようにし、以て、後述するタンブラーAの係合突起とタンブラーBの係合凹部との切り離しの際タンブラーBがタンブラーAから相対的に下降できるようにし、また、タンブラーAの合鍵側端縁との係合部と重合する部分を合鍵と干渉しないように成形し、一方、タンブラーAの自由端部内側縁部のタンブラーBと対向する側に係合突起を、また、タンブラーBの内側縁部には支軸を中心とする円弧上にタンブラーAの係合突起と係合可能な係合凹部の複数を夫々形成すると共に、係合凹部の形成角度位置を、合鍵の側端縁に形成された複数種類の深さの鍵溝にタンブラーAの係合部が夫々係合したとき、その係合突起と整合するように設定したものにおいて、支軸の内端部に大径鍔部を形成し、軸線方向においてこの大径鍔部と整合する外筒外周面に、これを貫通する雌ねじ孔を形成し、鍵違い変換時、先端から順に小径部、雄ねじ部及び段部を連設した変換用ドライバーを上記雌ねじ孔に捩じ込み、その小径部により支軸の大径鍔部を内方に押動して、タンブラーAの係合突起とタンブラーBの係合凹部とを切り離すようにしたことを特徴とする。 In order to achieve the above-mentioned object, the present invention is such that each lever tumbler of the lever tumbler lock is a combination of tumbler A and tumbler B, which are superposed on each other in a substantially C shape, while the central axis is outward. The support shaft biased so as to face is supported so that it can rotate around the axis of the eccentric shaft projecting at both ends, and the relief hole opened at one end is engaged with the support shaft so as to be freely fitted. The tumbler A is formed with an engagement portion with the keyway of the key, and is urged in a direction that interferes with the key, and the free end of the tumbler B having one end rotatably fitted to the support shaft An unlocking notch is formed in the outer edge of the section so that each tumbler B is angularly aligned with the locking bar when one key is inserted into the keyhole, Tumbler B at the time of separation from the engagement recess of Tumbler B To allow relatively downward from the tumbler A, also by molding a portion of polymerizing with the engagement portion of the duplicate key side edge of the tumbler A so as not to interfere with the duplicate key, whereas the free end inner edge of the tumbler A The tumbler B has an engaging protrusion on the side facing the tumbler B, and an inner edge of the tumbler B has a plurality of engaging recesses that can engage with the engaging protrusion of the tumbler A on an arc centered on the support shaft. When the engaging portion of the tumbler A is engaged with a plurality of types of key grooves formed at the side edge of the key combination, the forming angular position of the engaging recess is aligned with the engaging protrusion. In the one set so as to form a large-diameter flange on the inner end of the support shaft, and on the outer peripheral surface of the outer cylinder aligned with the large-diameter flange in the axial direction, a female screw hole penetrating this is formed. When changing the key difference, connect the small diameter part, male thread part and step part in order from the tip. The converted screwdriver is screwed into the female screw hole, and the large-diameter flange portion of the support shaft is pushed inward by the small-diameter portion so as to separate the engagement protrusion of the tumbler A and the engagement recess of the tumbler B. It is characterized by that.

上記のように構成されたこの発明による可変レバータンブラー錠は、支軸を駆動するため外筒に摺動可能に案内されたスイッチ部材が不要となるので、外筒に膨出部を形成することなく、単なる筒体とすることができる。   Since the variable lever tumbler lock according to the present invention configured as described above does not require a switch member that is slidably guided to the outer cylinder to drive the support shaft, the bulging portion is formed on the outer cylinder. And a simple cylinder.

そのため、可変レバータンブラー錠の構造を簡単かつコンパクトにすることができ、また、鍵違い変換時の操作が確実になる、等種々の効果を奏する。   Therefore, the structure of the variable lever tumbler lock can be made simple and compact, and various effects such as a reliable operation during key-to-key conversion can be achieved.

従来の外筒半径方向に摺動するスイッチ部材の代りに、外筒の基部に設けたねじ孔を挿通する変換用ドライバーにより支軸を直接駆動するので、可変レバータンブラー錠の外筒に膨出部を形成する必要を無くした。   Instead of the conventional switch member that slides in the radial direction of the outer cylinder, the spindle is directly driven by a conversion screwdriver that is inserted through a screw hole provided in the base of the outer cylinder, so that it bulges into the outer cylinder of the variable lever tumbler lock The need to form parts was eliminated.

以下、この発明の実施例を図5乃至図7を参照して説明する。
図5及び図7において符号19は可変レバータンブラー錠の外筒を示し、この外筒19の基端部で、図7において時計盤面に換算して12時の角度位置に、外筒19を貫通する雌ねじ孔21が形成されている。なお、図7においては、図面を明瞭にするために、この雌ねじ孔に付番しない。
Embodiments of the present invention will be described below with reference to FIGS.
5 and 7, reference numeral 19 indicates an outer cylinder of the variable lever tumbler lock. The outer cylinder 19 penetrates the outer cylinder 19 at a base end portion of the outer cylinder 19 at an angular position of 12 o'clock in FIG. A female screw hole 21 is formed. In FIG. 7, the female screw holes are not numbered for the sake of clarity.

この雌ねじ孔21の外筒軸線方向における位置は、支軸2の基端に嵌装されたスペーサリング15(図2及び図3参照)と整合する位置とする。なお、図5において符号20は取付板を示す。   The position of the female screw hole 21 in the outer cylinder axis direction is a position that is aligned with the spacer ring 15 (see FIGS. 2 and 3) fitted to the proximal end of the support shaft 2. In FIG. 5, reference numeral 20 denotes a mounting plate.

一方、図6において符号22は変換用ドライバーを示し、この変換用ドライバー22は、全体の形状が短い棒状体で、その先端(図6で下端)から順に小径部23、上記雌ねじ孔21と螺合する雄ねじ部24及び段部25が連設されている。   On the other hand, in FIG. 6, reference numeral 22 denotes a conversion driver. The conversion driver 22 is a rod-like body having a short overall shape, and is sequentially arranged from the tip (lower end in FIG. 6) to the small diameter portion 23, the female screw hole 21 and the screw. The mating male screw part 24 and the step part 25 are connected.

上記のように構成されたこの発明の一実施例による可変レバータンブラー錠は、図1に示すように、鍵違い変換時それ迄の合鍵5を鍵孔6に挿入してタンブラーBIBの解錠切欠8とロッキングバー12の内側端縁を整合させる。   As shown in FIG. 1, the variable lever tumbler lock according to an embodiment of the present invention constructed as described above is inserted into the key hole 6 when the key is changed, and the unlocking notch of the tumbler BIB is inserted. 8 and the inner edge of the locking bar 12 are aligned.

次いで、図7に示すように、変換用ドライバー22の先端を前記外筒に形成された雌ねじ孔21(図5参照)に捩じ込む。   Next, as shown in FIG. 7, the tip of the conversion driver 22 is screwed into a female screw hole 21 (see FIG. 5) formed in the outer cylinder.

すると、雌ねじ孔21を挿通した小径部23が支軸の大径鍔部であるスペーサリング15の外周縁を、支軸ばね26(図4参照)の弾力に抗して下方に押動する。   Then, the small-diameter portion 23 inserted through the female screw hole 21 pushes the outer peripheral edge of the spacer ring 15, which is the large-diameter collar portion of the support shaft, against the elastic force of the support shaft spring 26 (see FIG. 4).

そのため、支軸2は図7において偏芯軸3(図2及び図3参照)の回りを時計方向に少し回動し、この支軸2の回動に伴ってタンブラーBIBが下方に移動して、係合突起9と係合凹部11との係合を解く。   Therefore, the support shaft 2 slightly rotates clockwise around the eccentric shaft 3 (see FIGS. 2 and 3) in FIG. 7, and the tumbler BIB moves downward as the support shaft 2 rotates. Then, the engagement between the engagement protrusion 9 and the engagement recess 11 is released.

この場合、変換用ドライバーの雄ねじ部24と雌ねじ孔21とは螺合しているので、変換用ドライバーから手を放しても図7に示す状態は変らない。   In this case, since the male screw portion 24 and the female screw hole 21 of the conversion driver are screwed together, the state shown in FIG. 7 does not change even if the hand is released from the conversion driver.

次いで新しい合鍵を挿入すると、タンブラーA1Aは新しい合鍵の鍵溝に対応した角度位置に迄回動するので、この状態で変換用ドライバー22をねじ戻し、小径部23を雌ねじ孔から抜くと、上記支軸ばね26の弾力によってタンブラーB1Bが上昇し、その何れかの係合凹部11が新しい角度位置における係合突起9と係合し、この用にしてタンブラーA1AとタンブラーB1Bとの新しい相対角度位置が定まる。   Next, when a new key is inserted, the tumbler A1A rotates to an angular position corresponding to the keyway of the new key, and in this state, when the conversion driver 22 is unscrewed and the small diameter portion 23 is removed from the female screw hole, The elastic force of the shaft spring 26 raises the tumbler B1B, and any of the engaging recesses 11 engages with the engaging protrusion 9 at the new angular position. For this purpose, a new relative angular position between the tumbler A1A and the tumbler B1B is obtained. Determined.

なお、図示の実施例では、支軸の大径鍔部を支軸とは別体のスペーサリングとし、これを支軸の内端部に嵌装するものとしたが、これは支軸を削り出すとき、或いは塑性加工するとき、支軸と一体に削り出し、或いは形成してもよいことは勿論である。   In the illustrated embodiment, the large-diameter flange portion of the support shaft is a spacer ring that is separate from the support shaft, and this is fitted to the inner end of the support shaft. It goes without saying that, when taking out or plastic working, it may be cut out or formed integrally with the support shaft.

従来の可変レバータンブラー錠の支持機構の一例を示す拡大横断面図。The expanded cross-sectional view which shows an example of the support mechanism of the conventional variable lever tumbler lock. スイッチ部材による支軸の駆動機構を示す拡大外観斜視図で、常態を示す。It is an expansion external appearance perspective view which shows the drive mechanism of the spindle by a switch member, and shows a normal state. 図2と同様のスイッチ部材による支軸の駆動機構を示す拡大外観斜視図で、変換ピンによりスイッチ部材を駆動した状態を示す。FIG. 3 is an enlarged external perspective view showing a driving mechanism of a support shaft by a switch member similar to FIG. 2, showing a state in which the switch member is driven by a conversion pin. 従来の可変レバータンブラー錠の一部断面側面図。The partial cross section side view of the conventional variable lever tumbler lock. この発明の一実施例による可変レバータンブラー錠の平面図。The top view of the variable lever tumbler lock by one Example of this invention. 変換用ドライバーの側面図。The side view of the driver for conversion. この発明の要部を示す図1と同様の可変レバータンブラー錠の拡大横断面図で、それまでの合鍵を一度挿入して抜いた状態を示す。FIG. 2 is an enlarged cross-sectional view of a variable lever tumbler lock similar to FIG. 1 showing the main part of the present invention, showing a state in which the previous key is once inserted and removed.

符号の説明Explanation of symbols

1 レバータンブラー
1A タンブラーA
1B タンブラーB
2 支軸
3 偏芯軸
4 逃げ孔
5 合鍵
6 鍵溝
7 係合部
8 解錠切欠
9 係合突起
11 係合凹部
12 ロッキングバー
13 変換ピン
14 スイッチ部材
15 スペーサリング
16 スペーサリング
19 外筒
20 取付板
21 雌ねじ孔
22 変換用ドライバー
23 小径部
24 雄ねじ部
25 段部
26 支軸ばね
1 Lever Tumbler 1A Tumbler A
1B Tumbler B
DESCRIPTION OF SYMBOLS 2 Support shaft 3 Eccentric shaft 4 Escape hole 5 Joint key 6 Key groove 7 Engagement part 8 Unlocking notch 9 Engagement protrusion 11 Engagement recessed part 12 Locking bar 13 Conversion pin 14 Switch member 15 Spacer ring 16 Spacer ring 19 Outer cylinder 20 Mounting plate 21 Female screw hole 22 Conversion screwdriver 23 Small diameter part 24 Male screw part 25 Step part 26 Spindle spring

Claims (3)

レバータンブラー錠の各レバータンブラーを、略C字形で相互に重合するタンブラーAとタンブラーBとを組合わせたものとする一方、中心軸線が外方に向かうように付勢された支軸を、その両端に突設した偏芯軸の軸線回りを回動できるように支承し、一端に開口した逃げ孔を支軸に遊嵌可能に係合させたタンブラーAには合鍵の鍵溝との係合部を形成すると共に、これを合鍵と干渉する方向に付勢し、また、一端を支軸に回動自在に嵌合させたタンブラーBの自由端部外側端縁に解錠切欠を形成して、一の合鍵を鍵孔に挿入したとき各タンブラーBがロッキングバーと角度的に整合するようにし、以て、後述するタンブラーAの係合突起とタンブラーBの係合凹部との切り離しの際タンブラーBがタンブラーAから相対的に下降できるようにし、また、タンブラーAの合鍵側端縁との係合部と重合する部分を合鍵と干渉しないように成形し、一方、タンブラーAの自由端部内側縁部のタンブラーBと対向する側に係合突起を、また、タンブラーBの内側縁部には支軸を中心とする円弧上にタンブラーAの係合突起と係合可能な係合凹部の複数を夫々形成すると共に、係合凹部の形成角度位置を、合鍵の側端縁に形成された複数種類の深さの鍵溝にタンブラーAの係合部が夫々係合したとき、その係合突起と整合するように設定したものにおいて、支軸の内端部に大径鍔部を形成し、軸線方向においてこの大径鍔部と整合する外筒外周面に、これを貫通する雌ねじ孔を形成し、鍵違い変換時、先端から順に小径部、雄ねじ部及び段部を連設した変換用ドライバーを上記雌ねじ孔に捩じ込み、その小径部により支軸の大径鍔部を内方に押動して、タンブラーAの係合突起とタンブラーBの係合凹部とを切り離すようにしたことを特徴とする可変レバータンブラー錠。 Each lever tumbler of the lever tumbler lock is a combination of a tumbler A and a tumbler B, which overlap each other in a substantially C shape, and a support shaft whose central axis is urged outward is The tumbler A, which is supported so as to be able to turn around the axis of the eccentric shaft protruding from both ends, is engaged with the key groove of the key lock in the tumbler A which is engaged with the escape hole opened at one end so as to be freely fitted. parts to form a, which biases the duplicate key that interfere with direction, one end to form a unlock notch at the free end outer edge of tumbler B which was rotatably fitted in the support shaft When the single key is inserted into the keyhole, each tumbler B is angularly aligned with the locking bar, so that the tumbler is separated from the engagement protrusion of the tumbler A and the engagement recess of the tumbler B, which will be described later. B can descend relative to tumbler A To, also, by forming a portion of polymerizing with the engagement portion of the duplicate key side edge of the tumbler A so as not to interfere with the duplicate key, whereas, engaging on the side facing the tumbler B of the free end inner edge of the tumbler A On the inner edge of the tumbler B, a plurality of engaging recesses that can engage with the engaging protrusions of the tumbler A are formed on the inner edge of the tumbler B, and the engaging recesses are formed. In the case where the angular position is set so as to be aligned with the engaging protrusion when the engaging portion of the tumbler A is engaged with a plurality of depths of key grooves formed on the side edge of the key, respectively. A large-diameter flange is formed at the inner end of the shaft, and a female screw hole is formed on the outer peripheral surface of the outer cylinder that is aligned with the large-diameter flange in the axial direction. A screwdriver for conversion, which has a continuous part, male thread part and step part, is inserted into the female thread hole. The variable lever tumbler is characterized in that the small-diameter portion pushes the large-diameter collar portion of the support shaft inward to separate the engagement protrusion of the tumbler A and the engagement concave portion of the tumbler B. Tablets. 上記支軸の大径鍔部が、支軸内端部に嵌合する蛇の目状のスペーサリングである請求項1に記載の可変レバータンブラー錠。   2. The variable lever tumbler lock according to claim 1, wherein the large-diameter flange portion of the support shaft is a snake-like spacer ring fitted to the inner end portion of the support shaft. 上記支軸の大径鍔部が、支軸に一体に形成されたものである請求項1に記載の可変レバータンブラー錠。   The variable lever tumbler lock according to claim 1, wherein the large-diameter flange portion of the support shaft is formed integrally with the support shaft.
JP2003396000A 2003-11-26 2003-11-26 Variable lever tumbler lock Expired - Fee Related JP4516305B2 (en)

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JP4535315B2 (en) * 2004-03-10 2010-09-01 美和ロック株式会社 Variable lever tumbler lock
JP4632237B2 (en) * 2004-10-20 2011-02-16 美和ロック株式会社 Variable lever tumbler lock
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