JP6343422B2

JP6343422B2 - Rotary disc tumbler lock

Info

Publication number: JP6343422B2
Application number: JP2013026404A
Authority: JP
Inventors: 木野瀬将明
Original assignee: 美和ロック株式会社
Priority date: 2013-02-14
Filing date: 2013-02-14
Publication date: 2018-06-13
Anticipated expiration: 2033-02-14
Also published as: JP2014152593A

Description

本発明はロータリーディスクタンブラー錠（シリンダー錠）に関し、特に可動障害子が外筒体の半径方向にスライドする方式のロータリーディスクタンブラー錠（シリンダー錠）に関する。 The present invention relates to a rotary disc tumbler lock (cylinder lock), and more particularly, to a rotary disc tumbler lock (cylinder lock) in which a movable obstacle slides in a radial direction of an outer cylinder.

特許文献１は、「タンブラー」と称される可動障害子が支軸を中心にして揺動する振り子式のロータリーディスクタンブラー錠である点で、本発明とは技術的原理が相違する。また特許文献２は、本発明と同様に可動障害子が直線移動するスライド方式のロータリーディスクタンブラー錠なので、本発明と技術的原理が同じである。これらの特許文献に記載の公知発明は、「鍵違いの増大化」を図ることができる点で、本発明の課題と共通するものの、錠前を構成する各部材が同一であっても、可動障害子の配列を任意に変更することにより、鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することができないという問題点がある。 Patent Document 1 is a technical principle different from the present invention in that a movable obstacle called a “tumbler” is a pendulum type rotary disc tumbler lock that swings around a support shaft. Since Patent Document 2 is a slide-type rotary disc tumbler lock in which a movable obstacle moves linearly as in the present invention, the technical principle is the same as that of the present invention. Although the known inventions described in these patent documents are common to the subject of the present invention in that "increase in key difference" can be achieved, even if each member constituting the lock is the same, the movable obstacle There is a problem that it is not possible to provide many types of cylinder locks that can increase the key difference by arbitrarily changing the arrangement of the children.

特許第４００８３０２号Patent No. 4008302 特開２０１１−７４６１３号JP 2011-74613 A

本発明の所期の目的は、製造時、錠前を構成する各部材が同一であっても、長筒状の外筒体或いは内筒体の軸線方向に少なくとも３種類の可動障害子の配列を任意に変更することにより、鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することである。第２の目的は、３種類の可動障害子の内、少なくとも２種類の可動障害子をそれぞれ二分割し、これらを任意に組み合わせ、さらに鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することである。 The intended object of the present invention is to arrange an array of at least three types of movable obstructions in the axial direction of the long cylindrical outer cylinder or the inner cylinder even if the members constituting the lock are the same at the time of manufacture. By changing arbitrarily, it is providing the many kinds of cylinder lock which can obtain the increase in a key difference. The second purpose is to divide at least two of the three types of movable obstacles into two, respectively, and combine them arbitrarily to obtain an increased number of different key locks. Is to provide.

本発明のロータリーディスクタンブラー錠は、内周面にロックカム溝を有する長筒状の外筒体と、この外筒体に回動自在に嵌合すると共に半径方向に解錠切欠を有する内筒体と、この内筒体に設けられていると共に前記ロックカム溝と係脱するロッキングバーと、前記内筒体のタンブラー収容部にタンブラーバネのバネ力に抗して半径方向にスライド自在に設けられ、かつ合鍵のブレードの異なる部位にそれぞれ形成された少なくとも３種類の被係合部分に対応して係合する係合部分をそれぞれ有する少なくとも３種類の可動障害子とから成り、前記３種類の可動障害子は、合鍵のブレードの平坦部の幅方向の左右の縁部分にそれぞれ側端部の直線状縁部から中央部寄りの部位に向かって形成され、かつ、ブレードの挿入方向に形成された複数の切欠溝（ａ）とそれぞれ係合する第１係合部分（４５）を有する複数の第１タンブラー（４１）と、同じく前記平坦部の中央部部分にブレードの挿入方向に沿って波状に形成された長溝（ｂ）と係合する第２係合部分（５５）を有する複数の第２タンブラー（５１）と、合鍵のブレードの側端部の中央部分に形成された大小の複数の窪み（ｃ）とそれぞれ係合する第３係合部分（６５）を有する複数の第３タンブラー（６１）とから成り、これらの第１乃至第３タンブラー（４１）、（５１）、（６１）は、合鍵の挿入方向にそれぞれ仕切板（１６）を介して任意の位置に配設され、前記合鍵のブレードを内筒体のキー孔に差し込んだ時、前記ブレードの各被係合部分に前記３種類の可動障害子の各係合部分がそれぞれ係合することにより、所定方向に移動した該３種類の可動障害子の各受け入れ凹所が前記ロッキングバーの係合板部分に対して一致し、以て、合鍵と共に内筒体を解錠方向へ回動させた時、前記ロックカム溝と前記ロッキングバーとの間に生じる楔作用により、内筒体が外筒体に対して相対回動することを特徴とする。 A rotary disc tumbler lock according to the present invention includes a long cylindrical outer cylindrical body having a lock cam groove on an inner peripheral surface, and an inner cylindrical body that is rotatably fitted to the outer cylindrical body and has an unlocking notch in a radial direction. And a locking bar that is provided on the inner cylinder and is engaged with and disengaged from the lock cam groove, and a tumbler housing portion of the inner cylinder is provided to be slidable in the radial direction against the spring force of the tumbler spring, And at least three types of movable obstacles each having an engaging portion corresponding to at least three types of engaged portions respectively formed at different parts of the blade of the key. The child is formed on the left and right edge portions in the width direction of the flat portion of the blade of the key lock, respectively, from the straight edge portion of the side end portion toward the portion closer to the center portion, and formed in the blade insertion direction. A plurality of first tumblers (41) each having a first engagement portion (45) that respectively engages with a notch groove (a), and is also formed in a wave shape along the blade insertion direction in the central portion of the flat portion. A plurality of second tumblers (51) having a second engaging portion (55) that engages with the elongated groove (b), and a plurality of large and small depressions ( c) and a plurality of third tumblers (61) each having a third engaging portion (65) that engages with each of the first to third tumblers (41), (51), (61), In the insertion direction of the key, each is arranged at an arbitrary position via the partition plate (16), and when the blade of the key is inserted into the key hole of the inner cylinder, the three types By engaging each engaging part of the movable obstacle When each of the three types of movable obstacles moved in a predetermined direction is aligned with the engaging plate portion of the locking bar, the inner cylinder is rotated in the unlocking direction together with the key. The inner cylinder rotates relative to the outer cylinder by the wedge action generated between the lock cam groove and the locking bar.

上記構成に於いて、請求項１に於いて、ロックカム溝が、外筒体の軸線を基準にして対称形成され、これに対応して、一対のロッキングバーがそれぞれ付勢バネにより半径外方向に付勢された状態で内筒体の解錠切欠にそれぞれ配設されていることを特徴とする。また第１タンブラー、第２タンブラー、第３タンブラーの内、少なくともいずれか２以上のタンブラーは、ガイド棒を介して二分割されていることを特徴とする。さらに、本発明のロータリーディスクタンブラー錠は、内周面にロックカム溝を有する長筒状の外筒体と、この外筒体に回動自在に嵌合すると共に半径方向の解錠切欠を有する内筒体と、この内筒体に設けられていると共に前記ロックカム溝と係脱するロッキングバーと、前記内筒体のタンブラー収容部にタンブラーバネのバネ力に抗して半径方向にスライド自在に設けられ、かつ合鍵のブレードの異なる部位にそれぞれ形成された少なくとも３種類の被係合部分に対応して係合する係合部分をそれぞれ有する少なくとも３種類の可動障害子とから成り、前記合鍵のブレードは、平坦部が存在せず、その外周面が曲線状に形成された棒状のものであり、符号ＨをブレードＢ１の縦断面の中心部（軸線）Ｏと直交する水平線とし、一方、符号Ｖを前記中心部（軸線）Ｏと直交する垂直線とした場合に於いて、前記垂直線Ｖが通るブレードの外周面の上下の各部位に前記被係合部分の一つとしての波状長溝がそれぞれ形成され、これらの波状長溝の形成位置に対して略９０度と成る前記水平線Ｈが通るブレードの外周面の左右の各部位に前記被係合部分の他の一つとしての窪みがそれぞれ形成され、さらに、前記波状長溝と前記窪みの間で、これらの窪み及び前記波状長溝にそれぞれ連通しないようにブレードの外周面の一部に前記被係合部分の他のもう一つとしての切欠溝がブレードの中心部寄りの部位に向かってそれぞれ形成されていることを特徴とする。 In the above configuration, in claim 1, the lock cam groove is formed symmetrically with respect to the axis of the outer cylinder, and correspondingly, the pair of locking bars are respectively radially outward by the biasing springs. It is characterized by being respectively disposed in the unlocking notch of the inner cylindrical body in a biased state. In addition, at least any two or more of the first tumbler, the second tumbler, and the third tumbler are divided into two via a guide rod. Further, the rotary disc tumbler lock of the present invention is an inner cylinder having a long cylindrical outer cylinder having a lock cam groove on the inner peripheral surface, and a radially unlocking notch that is rotatably fitted to the outer cylinder. A cylindrical body, a locking bar which is provided on the inner cylindrical body and is engaged with and disengaged from the lock cam groove, and a tumbler accommodating portion of the inner cylindrical body which is slidable in the radial direction against the spring force of the tumbler spring. And at least three types of movable obstacles each having an engaging portion that engages with at least three types of engaged portions respectively formed at different parts of the keyed blade, and the keyed blade Is a rod-shaped member having no flat portion and having an outer peripheral surface formed in a curved shape, and symbol H is a horizontal line perpendicular to the center (axis) O of the longitudinal section of blade B1, while symbol V When a vertical line orthogonal to the central portion (axis) O is formed, a wavy long groove as one of the engaged parts is formed at each of the upper and lower portions of the outer peripheral surface of the blade through which the vertical line V passes. In addition, a recess as another one of the engaged parts is formed in each of the left and right portions of the outer peripheral surface of the blade through which the horizontal line H that is approximately 90 degrees with respect to the formation position of these wavy long grooves, Further, another notched groove as another part of the engaged portion is formed on a part of the outer peripheral surface of the blade so as not to communicate with the recess and the corrugated long groove between the corrugated long groove and the recess. It is characterized by each being formed toward the site | part near the center part.

（ａ）請求項１に記載の発明は、製造時、錠前を構成する各部材が同一であっても、長筒状の外筒体或いは内筒体の軸線方向に少なくとも３種類の可動障害子の配列を任意に変更することにより、合鍵のブレードに形成された３種類の被係合部分に対応して係合する係合部分をそれぞれ有する前記３種類の可動障害子の存在によって、鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することができる。
（ｂ）請求項２に記載の発明は、ロッキングバーの数が増えるので、より解錠が困難なシリンダー錠を提供することができる。
（ｃ）請求項３に記載の発明は、３種類の可動障害子の内、少なくとも２種類の可動障害子をそれぞれ二分割し、これらを任意に組み合わせるので、さらに鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することができる。
（ｄ）請求項４に記載の発明は、請求項１と同様の効果を得ることができる。 (A) According to the first aspect of the present invention, at least three types of movable obstructions are formed in the axial direction of the long cylindrical outer cylinder or the inner cylinder even when the members constituting the lock are the same at the time of manufacture. By arbitrarily changing the arrangement of the above, the presence of the three types of movable obstacles each having an engagement portion that engages with the three types of engaged portions formed on the blades of the key is different. Many types of cylinder locks can be provided.
(B) The invention according to claim 2 can provide a cylinder lock which is more difficult to unlock because the number of locking bars increases.
(C) According to the invention described in claim 3, at least two of the three types of movable obstacles are divided into two parts, and these are arbitrarily combined, so that an increase in key difference can be obtained. Can provide many kinds of cylinder locks.
(D) The invention according to claim 4 can obtain the same effect as that of claim 1.

図１乃至図３０は本発明の第１実施形態を示す各説明図。図３１至図４１は本発明の他の実施形態を示す各説明図。
使用態様の一例を示す外観斜視図。図１で示したタンブラー錠Ｘの軸線０を含む面で切断した概略縦断面図。合鍵の挿入方向Ａに直交する面で切断した概略縦断面図（第１タンブラーが見える）。外筒体の概略断面図。内筒体を構成する主たる部材の概略説明図。第１タンブラーの正面図。図６の７−７線断面図。図６の８−８線断面図。合鍵の挿入方向Ａに直交する面で切断した概略縦断面図（第２タンブラーが見える）。第２タンブラーの正面図。図１０の１１−１１線断面図。図１０の１２−１２線断面図。合鍵の挿入方向Ａに直交する面で切断した概略縦断面図（第３タンブラーが見える）。第３タンブラーの正面図。図１４の１５−１５線断面図。図１４の１６−１６線断面図。シリンダー錠の内部構造を示す説明図（断面の位置によって第１乃至第３タンブラーが見える）。合鍵のブレードの一例を示す斜視からの説明図。ブレードの異なる部位に「３種類の被係合部分」が存在することを示す便宜的な説明図。図１９の２０−２０線断面図。図１９の２１−２１線断面図。図１９の２２−２２線断面図。３種類の可動障害子Ｘの各係合部分４５、５５、６５との係合関係を示す概略説明図。図３に於いて、第１タンブラーが解錠位置へ移動した概略縦断面図。図９に於いて、第２タンブラーが解錠位置へ移動した概略縦断面図。図１３に於いて、第３タンブラーが解錠位置へ移動した概略縦断面図。図２４に於いて、合鍵Ｙと共に内筒体３を解錠方向へ回動させた途中時の概略縦断面図。図２５に於いて、合鍵Ｙと共に内筒体３を解錠方向へ回動させた途中時の概略縦断面図。図２６に於いて、合鍵Ｙと共に内筒体３を解錠方向へ回動させた途中時の概略縦断面図。（ａ）と（ｂ）と（ｃ）は、第１乃至第３タンブラーの配列パターン（例えば便宜上６枚で組み合わせた場合）の一例を示す説明図。本発明を構成する第１タンブラーの異なる実施形態を示す概略説明図（上下に二分割）。図３１の要部（第１タンブラー）の正面図。本発明を構成する第２タンブラーの異なる実施形態を示す概略説明図（上下に二分割）。図３３の要部（第２タンブラー）の正面図。合鍵の第２実施形態を示す斜視図。図３５の３６−３６線概略断面説明図。（ａ）は第１タンブラーの第１係合部分と合鍵の切欠溝ａとの係合を示す概略説明図、（ｂ）は第２タンブラーの第２係合部分と合鍵の長溝ｂとの係合を示す概略説明図、（ｃ）は第３タンブラーの第３係合部分と合鍵の窪みｃとの係合を示す概略説明図。本発明を構成する第３タンブラーの異なる実施形態を示す概略説明図（上下に二分割）図３８の要部（第３タンブラー）の正面図。合鍵の第３実施形態を示す斜視図。図４０の４１−４１線概略断面説明図。 1 to 30 are explanatory views showing a first embodiment of the present invention. 31 to 41 are explanatory views showing other embodiments of the present invention.
The external appearance perspective view which shows an example of a use aspect. The schematic longitudinal cross-sectional view cut | disconnected by the surface containing the axis line 0 of the tumbler tablet X shown in FIG. The schematic longitudinal cross-sectional view cut | disconnected in the surface orthogonal to the insertion direction A of a key (a 1st tumbler can be seen). The schematic sectional drawing of an outer cylinder. Schematic explanatory drawing of the main member which comprises an inner cylinder. The front view of a 1st tumbler. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 6. The schematic longitudinal cross-sectional view cut | disconnected by the surface orthogonal to the insertion direction A of a key (the 2nd tumbler can be seen). The front view of a 2nd tumbler. FIG. 11 is a sectional view taken along line 11-11 in FIG. 10; FIG. 12 is a sectional view taken along line 12-12 of FIG. 10; The schematic longitudinal cross-sectional view cut | disconnected in the surface orthogonal to the insertion direction A of a key (a 3rd tumbler can be seen). The front view of a 3rd tumbler. FIG. 15 is a sectional view taken along line 15-15 in FIG. 14; FIG. 16 is a sectional view taken along line 16-16 in FIG. 14; Explanatory drawing which shows the internal structure of a cylinder lock (a 1st thru | or 3rd tumbler is visible by the position of a cross section). Explanatory drawing from the perspective which shows an example of the blade of a key. Explanatory explanatory drawing which shows that "three types of engaged parts" exist in the different site | parts of a braid | blade. FIG. 20 is a sectional view taken along line 20-20 in FIG. FIG. 21 is a sectional view taken along line 21-21 in FIG. FIG. 22 is a cross-sectional view taken along line 22-22 in FIG. 19. The schematic explanatory drawing which shows the engagement relationship with each engaging part 45, 55, 65 of three types of movable obstruction X. FIG. The schematic longitudinal cross-sectional view which the 1st tumbler moved to the unlocking position in FIG. The schematic longitudinal cross-sectional view in which the 2nd tumbler moved to the unlocking position in FIG. The schematic longitudinal cross-sectional view in which the 3rd tumbler moved to the unlocking position in FIG. In FIG. 24, the schematic longitudinal cross-sectional view in the middle of rotating the inner cylinder 3 with the key Y in the unlocking direction. In FIG. 25, the schematic longitudinal cross-sectional view in the middle of rotating the inner cylinder 3 with the key Y in the unlocking direction. In FIG. 26, the schematic longitudinal cross-sectional view in the middle of rotating the inner cylinder 3 with the key Y in the unlocking direction. (A), (b), (c) is explanatory drawing which shows an example of the arrangement pattern (For example, when combining 6 sheets for convenience) of the 1st thru | or 3rd tumbler. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows different embodiment of the 1st tumbler which comprises this invention (upper and lower division). The front view of the principal part (1st tumbler) of FIG. Schematic explanatory drawing which shows different embodiment of the 2nd tumbler which comprises this invention (upper and lower division). The front view of the principal part (2nd tumbler) of FIG. The perspective view which shows 2nd Embodiment of a key combination. 36 is a schematic cross-sectional explanatory view taken along line 36-36 in FIG. 35. FIG. (A) is schematic explanatory drawing which shows engagement with the 1st engagement part of a 1st tumbler, and the notch groove a of a key combination, (b) is the relationship between the 2nd engagement part of a 2nd tumbler, and the long groove b of a key combination. (C) is a schematic explanatory drawing which shows engagement with the 3rd engagement part of a 3rd tumbler, and the hollow c of a key. Schematic explanatory drawing showing different embodiments of the third tumbler constituting the present invention (divided vertically) The front view of the principal part (3rd tumbler) of FIG. The perspective view which shows 3rd Embodiment of a key combination. 41 is a schematic sectional view taken along line 41-41 in FIG.

図１乃至図３０は、本発明の一実施形態のロータリーディスクタンブラー錠Ｘ（以下、「タンブラー錠」という。）の各説明図である。図１は本発明のタンブラー錠Ｘを扉１の壁部１ａに取り付け、それと共に合鍵Ｙを示した外観斜視図である。まずこの図１に於いて、Ｘはタンブラー錠で、このタンブラー錠Ｘは合鍵Ｙの操作力により、複数の部材を組み合わせて形成された内筒体３が長筒状の外筒体２に対して相対回動する。 FIG. 1 to FIG. 30 are explanatory diagrams of a rotary disc tumbler lock X (hereinafter referred to as “tumbler lock”) according to an embodiment of the present invention. FIG. 1 is an external perspective view of a tumbler lock X of the present invention attached to a wall 1a of a door 1 and a key Y shown therewith. First, in FIG. 1, X is a tumbler lock, and the tumbler lock X has an inner cylindrical body 3 formed by combining a plurality of members with an operating force of a combined key Y. Relative rotation.

実施形態では、扉１（例えば、住宅の扉、自動販売機の扉など）の壁部１ａにタンブラー錠Ｘが水平状態に固着され、前記内筒体３を構成する錠先端部４に化粧カバー５が外嵌合している。 In the embodiment, a tumbler lock X is fixed in a horizontal state on a wall 1 a of a door 1 (for example, a door of a house, a vending machine door, etc.), and a decorative cover is attached to a lock tip 4 constituting the inner cylinder 3. 5 is fitted outside.

図１で示すようにキー孔６を有する錠先端部４及び化粧カバー５は、壁部１ａの外壁面から突出している。また内筒体３を構成する錠後端部７は、外筒体２あるいは内筒体３の軸線０上に位置するテールピース（出力片）８を有している。なお、符号Ａは合鍵Ｙの挿入方向である。本発明のタンブラー錠Ｘは、後述の可動障害子Ｚの係合部分４５、５５、６５及び該係合部分に対応する合鍵Ｙの被係合部分ａ、ｂ、ｃに特徴がある。 As shown in FIG. 1, the lock | rock front-end | tip part 4 and the decorative cover 5 which have the key hole 6 protrude from the outer wall surface of the wall part 1a. Further, the lock rear end portion 7 constituting the inner cylinder 3 has a tail piece (output piece) 8 positioned on the axis 0 of the outer cylinder 2 or the inner cylinder 3. Note that symbol A is the direction in which the key Y is inserted. The tumbler lock X of the present invention is characterized by engagement portions 45, 55, 65 of a movable obstruction Z, which will be described later, and engaged portions a, b, c of a key Y corresponding to the engagement portions.

次に、図２は図１で示したタンブラー錠Ｘの軸線０を含む面で切断した概略縦断面図である。一方、図３は合鍵Ｙの挿入方向Ａに直交する面で切断した概略縦断面図である。図２及び図３を参照してタンブラー錠Ｘの基本的な構成部材を説明する。 Next, FIG. 2 is a schematic longitudinal sectional view taken along a plane including the axis 0 of the tumbler lock X shown in FIG. On the other hand, FIG. 3 is a schematic longitudinal sectional view cut along a plane orthogonal to the insertion direction A of the key Y. The basic structural members of the tumbler lock X will be described with reference to FIGS.

前述したように、２は長筒状の外筒体で、この外筒体の内周面２ａには、該外筒体２の母線に沿ってロックカム溝１１が形成されている（図４参照）。実施形態では、略ハの字形あるいは略逆ハの字形の一対のロックカム溝１１が母線に沿って、かつ外筒体２の軸線０を基準にして上下の中心部に対称に形成されている。実施形態では外筒体２の上下にロックカム溝１１、１１が設けられていることから、これに対応して一対のロッキングバー１２、１２が上下に配設されている。 As described above, reference numeral 2 denotes a long cylindrical outer cylinder, and a lock cam groove 11 is formed on the inner peripheral surface 2a of the outer cylinder along the generatrix of the outer cylinder 2 (see FIG. 4). ). In the embodiment, a pair of lock cam grooves 11 having a substantially C shape or a substantially inverted C shape are formed symmetrically at the center of the upper and lower sides along the generatrix and with respect to the axis 0 of the outer cylinder 2. In the embodiment, since the lock cam grooves 11 and 11 are provided above and below the outer cylindrical body 2, a pair of locking bars 12 and 12 are provided corresponding to this.

図３で示すように、ロッキングバー１２は、外筒体２のロックカム溝１１に対して係脱する外側の尖頭部１２ａと、この尖頭部に連設形成された内側の係合板部分１２ｂとから成り、内筒体３の外周端部に形成された該内筒体の長手方向の解錠切欠１３に適宜に組み込まれている。そして、図２で示すように、内筒体３の錠先端部４の後方に配設された前側の付勢バネ１４と、錠後端部７の内端部に配設された後側の付勢バネ１４により、各ロッキングバー１２は内筒体３の半径外方向にそれぞれ常時付勢されている。 As shown in FIG. 3, the locking bar 12 includes an outer cusp 12 a that engages with and disengages from the lock cam groove 11 of the outer cylinder 2, and an inner engagement plate portion 12 b that is formed continuously with the cusp. And is appropriately incorporated in an unlocking notch 13 in the longitudinal direction of the inner cylinder formed at the outer peripheral end of the inner cylinder 3. As shown in FIG. 2, a front biasing spring 14 disposed behind the lock tip 4 of the inner cylinder 3 and a rear spring disposed at the inner end of the lock rear end 7. Each rocking bar 12 is constantly urged in the radially outward direction of the inner cylinder 3 by the urging spring 14.

次に図２及び図３は、主に内筒体３を構成する部材を、説明の便宜上、適宜に判り易く示した各概略説明図である。実施形態の内筒体３は、中心部にキー孔６を有する錠先端部４と、出力突起片としてのテールピース８を中心部に有する錠後端部７と、この錠後端部７と前記錠先端部４との間に設けられ、かつ該軸線方向と直交する複数の仕切板１６によって区画形成される複数のタンブラー収容部２７並びに複数のタンブラーバネ用収容部２８、不番の仕切板用スロット、軸線方向の解錠切欠１３等を有すると共に、断面弧状の上下の分割体を複数の仕切板等を介して長筒状に形成された内筒本体１５と、この内筒本体に軸線方向に沿って列状に併設されていると共に該軸線方向と直交し、かつ前記タンブラー収容部２７及びタンブラーバネ収容部２８を形成する複数のトラック形状の仕切板１６と、前記内筒本体１５の一端開口２７ａから差し込まれた前記仕切板１６の連結孔１８を貫通して前記錠先端部４及び錠後端部７に架設された所定長の連結棒１９と、同じく前記仕切板１６の貫通小孔２１を貫通して前記錠先端部４及び錠後端部７に架設された所定長のガイド兼連結棒２２とから成る。 Next, FIG. 2 and FIG. 3 are schematic explanatory views showing members constituting the inner cylinder 3 mainly for convenience of explanation. The inner cylinder 3 according to the embodiment includes a lock front end 4 having a key hole 6 at the center, a lock rear end 7 having a tail piece 8 as an output projection piece at the center, and the lock rear end 7. A plurality of tumbler accommodating portions 27, a plurality of tumbler spring accommodating portions 28, and an unnumbered partition plate that are provided between the lock tip 4 and are partitioned by a plurality of partition plates 16 that are orthogonal to the axial direction. An inner cylinder body 15 having a slot for use, an unlocking notch 13 in the axial direction, etc., and an upper and lower divided body having an arcuate cross section formed in a long cylindrical shape via a plurality of partition plates, etc. A plurality of track-shaped partition plates 16 that are arranged side by side along the direction and perpendicular to the axial direction and that form the tumbler accommodating portion 27 and the tumbler spring accommodating portion 28; Inserted from one end opening 27a A connecting rod 19 of a predetermined length penetrating through the connecting hole 18 of the partition plate 16 and spanning the lock front end portion 4 and the lock rear end portion 7, and through the through small hole 21 of the partition plate 16 as described above. It consists of a guide / connecting rod 22 of a predetermined length that is installed on the lock front end 4 and the lock rear end 7.

ここで、図２、図３及び図５を参照にして、さらに内筒体３の構成を説明する。まず図３及び図５を参照にすると、錠先端部４は、短筒状のヘッド部分４ａと、このヘッド部分４ａに連設する環状のフランジ部分４ｂを有し、前述したようにその中心部にキー孔６が形成されている。キー孔６の形状や大きさは、合鍵ＹのブレードＢに対応して適宜に形成されている。そして、前記ヘッド部分４ａの先端面は、前記キー孔６に向かってすり鉢形状に形成された案内曲面となっている。また、前記キー孔６の同心円上には、錠先端部４の後端面から内部に向かって所定長の前支持孔２５が形成されている。実施形態では二本の連結棒１９を用いているので、前支持孔２５は所定間隔を有して上下に一対設けられている。 Here, the configuration of the inner cylinder 3 will be further described with reference to FIGS. First, referring to FIGS. 3 and 5, the lock tip 4 has a short cylindrical head portion 4a and an annular flange portion 4b connected to the head portion 4a. A key hole 6 is formed in the upper surface. The shape and size of the key hole 6 are appropriately formed corresponding to the blade B of the key Y. The leading end surface of the head portion 4 a is a guide curved surface formed in a mortar shape toward the key hole 6. A front support hole 25 having a predetermined length is formed on the concentric circle of the key hole 6 from the rear end surface of the lock front end portion 4 toward the inside. Since two connecting rods 19 are used in the embodiment, a pair of front support holes 25 are provided vertically with a predetermined interval.

次に図２を参照にすると、２６は錠先端部４のフランジ部分４ｂの後端面に面接触するように内筒本体１５の先端部に組み込まれた防御プレートで、この防御プレート２６は適宜に焼き入れされていると共に、その中心部にキー孔６と一致する不番の中心孔、その中心部寄りの部位に前支持孔２５と一致する不番の挿通孔等が適宜に形成されている。なお、防御プレート２６は、例えば内筒本体１５の先端部の上方に形成された長孔状の切欠部分を介して内筒本体１５内に組み込まれる。 Next, referring to FIG. 2, reference numeral 26 denotes a defense plate incorporated in the distal end portion of the inner cylinder main body 15 so as to come into surface contact with the rear end surface of the flange portion 4 b of the lock distal end portion 4. In addition to being quenched, an unnumbered center hole that coincides with the key hole 6 is formed at the center, and an unnumbered insertion hole that coincides with the front support hole 25 is formed at a position near the center. . In addition, the defense plate 26 is incorporated in the inner cylinder main body 15 through the long hole-shaped notch part formed above the front-end | tip part of the inner cylinder main body 15, for example.

次に５図を基準にすると、内筒本体１５は、ハッチングで示した上下の段差状実体部分１５ａ、１５ａを除き、外周の一端部（図面上、右側）が幅広く、一方、他端部（図面上、左側）が幅狭のタンブラー収容部２７を有している。このタンブラー収容部２７は、前述したように、複数のトラック形状の仕切板１６を内筒本体１５に側壁部分に形成された一端開口２７ａから差し込まれることによって、例えば１１個の仕切り空間として形成される（図２参照）。 Next, with reference to FIG. 5, the inner cylinder body 15 has a wide outer peripheral end portion (right side in the drawing) except for the upper and lower stepped substantial portions 15a and 15a shown by hatching, while the other end portion ( The left side in the drawing has a narrow tumbler accommodating portion 27. As described above, the tumbler accommodating portion 27 is formed as, for example, 11 partition spaces by inserting a plurality of track-shaped partition plates 16 into one end opening 27 a formed in the side wall portion of the inner cylinder main body 15. (See FIG. 2).

しかして、図５で示すように、トラック形状の仕切板１６によって区画された一つのタンブラー収容部２７（手前に見える非ハッチングの部分）は、上下のタンブラーバネ用収容部２８と連通すると共に、その上下・左右の幅は、後述する可動障害子（３種類のタンブラー）Ｚの外周形状に対応して適宜に設定される。実施形態では、一つのタンブラー収容部２７の間口に相当する一端開口２７ａは幅広く、上下の段差状ストッパー面１５ｂ、１５ｂ側の奥口に相当する他端開口２７ｂは幅狭である。このタンブラー収容部２７は、実施形態では合鍵Ｙの挿入方向Ａに仕切板１６を介して列状に合計１１個設けられている。 Thus, as shown in FIG. 5, one tumbler accommodating portion 27 (the non-hatched portion visible in the foreground) partitioned by the track-shaped partition plate 16 communicates with the upper and lower tumbler spring accommodating portions 28, The vertical and horizontal widths are appropriately set corresponding to the outer peripheral shape of a movable obstacle (three types of tumblers) Z described later. In the embodiment, the one end opening 27a corresponding to the opening of one tumbler accommodating portion 27 is wide, and the other end opening 27b corresponding to the upper and lower stepped stopper surfaces 15b and 15b is narrow. In the embodiment, a total of 11 tumbler accommodating portions 27 are provided in a row in the insertion direction A of the key Y through the partition plate 16.

しかして、１３は内筒本体１５の上部と下部に対称的に形成された解錠切欠で、この解錠切欠１３は前述した上下の実体部分１５ａ、１５ａの中央部に半径内方向に向かって段差状に形成され、その外側幅広切欠１３ａはロッキングバー１２の尖端部１２ａを嵌合案内し、一方、タンブラー収容部２７と連通する内側幅狭切欠１３ｂは前記ロッキングバー１２の係合板部分１２ｂを嵌合案内する。２８はタンブラー収容部２７内の適宜箇所に形成されたバネ端支持面を有するタンブラーバネ収容部で、実施形態では、上下の段差状実体部分１５ａ、１５ａの内側に対向して水平方向に一対設けられている。 Therefore, 13 is an unlocking notch formed symmetrically at the upper and lower parts of the inner cylinder main body 15, and this unlocking notch 13 is directed radially inward at the center of the upper and lower body parts 15a, 15a. The outer wide notch 13a is formed to be stepped, and guides and guides the pointed end 12a of the locking bar 12. On the other hand, the inner narrow notch 13b communicating with the tumbler accommodating portion 27 connects the engaging plate portion 12b of the locking bar 12. Guidance guide. Reference numeral 28 denotes a tumbler spring accommodating portion having a spring end support surface formed at an appropriate location in the tumbler accommodating portion 27. In the embodiment, a pair of tumbler spring accommodating portions 15a and 15a are provided in the horizontal direction so as to face the inner sides of the upper and lower stepped entity portions 15a and 15a. It has been.

次に同様に図５を参照にして仕切板１６を説明する。なお、設計如何によっては仕切板１６を円形や楕円形に形成し、内筒本体１５の解錠切欠１３と一致する仕切板解錠切欠を形成しても良いが、実施形態では、外観上、図５で示すようなトラック形状に形成している。また設計如何によっては、複数の仕切板１６を内筒本体１５自体に一体形成しても良い。本実施形態では、出願人が提案した特許第４００８３０２号の特許発明（図３、図４）と同様に、内筒本体１５と仕切板１６は別個の部材であり、二つの弧状分割片を一体的に組み合わせて内筒本体１５を形成した後に、該内筒本体１５に多数の仕切板１６を一体的に組み込み、タンブラー収容部２７を区画形成している。 Next, the partition plate 16 will be described with reference to FIG. Depending on the design, the partition plate 16 may be formed in a circular or oval shape, and a partition plate unlocking notch that matches the unlocking notch 13 of the inner cylinder body 15 may be formed. The track shape as shown in FIG. 5 is formed. Further, depending on the design, a plurality of partition plates 16 may be integrally formed with the inner cylinder main body 15 itself. In this embodiment, like the patent invention of the patent No. 4008302 proposed by the applicant (FIGS. 3 and 4), the inner cylinder body 15 and the partition plate 16 are separate members, and the two arc-shaped divided pieces are integrated. After the inner cylinder main body 15 is formed in combination, a large number of partition plates 16 are integrated into the inner cylinder main body 15 so that the tumbler accommodating portions 27 are partitioned.

ところで、両端部又は挿入部端（図面上、左端部）が弧状の嵌合突片を有するトラック形状の仕切板１６は、矩形状の連結孔１８、小円形状の貫通小孔２１及び中央部に形成された横長矩形状の案内開口２９を有する。 Incidentally, the track-shaped partition plate 16 having arc-shaped fitting protrusions at both ends or the insertion portion end (left end portion in the drawing) has a rectangular connecting hole 18, a small circular through hole 21 and a central portion. A horizontally-long rectangular guide opening 29 is formed.

次に図２と図５を参照にして錠後端部７側の構成を説明する。前述したように、錠後端部７はテールピース８を有するが、該テールピース８は、外筒体２の後端部に設けられたワッシヤーリング３１ａ、ストッパーリング３１ｂ等の止め具３１を介して外筒体２の後端部内に回動自在に嵌合するテールプラグ３２の中心部に取付けられている。 Next, the configuration of the lock rear end 7 side will be described with reference to FIGS. As described above, the lock rear end portion 7 has the tail piece 8, and the tail piece 8 has a stopper 31 such as a washer ring 31 a and a stopper ring 31 b provided at the rear end portion of the outer cylindrical body 2. And is attached to the center portion of the tail plug 32 that fits in the rear end portion of the outer cylindrical body 2 in a freely rotatable manner.

錠後端部７を構成するテールプラグ３２は、錠先端部４と同様に連結棒１９の後端部を支持する後支持孔３３を一対有している。連結棒１９は、内筒本体１５に組み込まれた後述の可動障害子Ｚ及び仕切板１６を貫通した状態で、その先端部は前支持孔２５に、一方、後端部は後支持孔３３に支持され、実施形態では、前記前支持孔２５に組み込まれた連結棒付勢バネ３４によって錠後端部７の方向に付勢されている。またガイド兼連結棒２２も連結棒１９と同様に可動障害子Ｚ及び仕切板１６を貫通した状態で、図示しない前後の支持孔にそれぞれ支持されている。 The tail plug 32 constituting the lock rear end portion 7 has a pair of rear support holes 33 for supporting the rear end portion of the connecting rod 19 like the lock front end portion 4. The connecting rod 19 penetrates a movable obstruction Z and a partition plate 16 (described later) incorporated in the inner cylinder main body 15, and its front end portion is in the front support hole 25, while its rear end portion is in the rear support hole 33. In the embodiment, it is biased in the direction of the lock rear end portion 7 by a connecting rod biasing spring 34 incorporated in the front support hole 25. Similarly to the connecting rod 19, the guide / connecting rod 22 is also supported by front and rear support holes (not shown) while penetrating the movable obstruction Z and the partition plate 16.

ここから本発明の特徴事項について説明する。まず図６乃至図８を参照にして環状に形成された可動障害子Ｚを説明する。図６は可動障害子Ｚを構成する３種類のタンブラーの内の第１タンブラー４１の正面図である。この図６を基準にすると、右側の大きな弧状に形成された右端部（ここでは「一端部４１ａ」とする）は、外筒体２の内周面２ａの曲率に対応して形成されているので、タンブラーバネ４２に付勢されている状態（施錠状態）では、外筒体２の内周面２ａに圧接する。左側の小さな弧状端面を有する突起状の左端部（ここでは「突起状他端部４１ｂ」とする）は、解錠時、タンブラー収容部２７を構成する左側の他端開口２７ｂに係入可能であると共に、その小さな弧状端面は外筒体２の内周面２ａにも当接可能である。水平面を有する上側の端部（ここでは「上端部４１ｃ」とする）は、ロッキングバー１２の係合板部分１２用の受け入れ凹所４８を有し、水平面を有する下側の端部（ここでは「下端部４１ｄ」とする）も、同様に前記係合板部分１２用の受け入れ凹所４８を有する。なお、後述するように可動障害子Ｚは、鍵違いの増大化を図るためにその中心部を水平方向に切断して「ニ分割」にしても良いが、実施形態では全体として非真円形状の環状板体に形成している。 The features of the present invention will now be described. First, the movable obstruction Z formed in an annular shape will be described with reference to FIGS. FIG. 6 is a front view of the first tumbler 41 among the three types of tumblers constituting the movable obstacle Z. FIG. With reference to FIG. 6, the right end portion (herein referred to as “one end portion 41 a”) formed in a large arc shape on the right side is formed corresponding to the curvature of the inner peripheral surface 2 a of the outer cylindrical body 2. Therefore, in a state where the tumbler spring 42 is urged (locked state), the outer cylinder 2 is pressed against the inner peripheral surface 2a. The left end of the protrusion having a small arc-shaped end surface on the left side (here, “projection-like other end portion 41b”) can be engaged with the other end opening 27b on the left side constituting the tumbler housing portion 27 when unlocked. At the same time, the small arcuate end surface can also contact the inner peripheral surface 2 a of the outer cylinder 2. The upper end portion (herein referred to as “upper end portion 41 c”) having a horizontal surface has a receiving recess 48 for the engaging plate portion 12 of the locking bar 12, and the lower end portion (here “ Similarly, the lower end 41d "has a receiving recess 48 for the engagement plate portion 12. As will be described later, the movable obstruction Z may be divided into two parts by horizontally cutting the central part in order to increase the key difference. The annular plate body is formed.

しかして、４３は中心部に形成されたブレード用貫通孔で、このブレード用貫通孔４３は、実施形態では内周縁としての左右の垂直端４３ａと上下の水平端４３ｂを有する横方向の矩形状に形成されている。そして、ブレード用貫通孔４３を形成する左右の垂直端４３ａ、４３ａの略中央部分には、ブレード用貫通孔４３と連通する半径外方向の小さな切欠溝４４、４４が対向状態に形成され、これにより、小さな切欠溝４４の水平端とブレード用貫通孔４３の前記垂直端４３ａが略直交状態に交わる角部分（実施形態では４個）が、例えば合鍵ＹのブレードＢの平坦部７１の縁部分７１ａに形成された切欠溝ａと係合する第１係合部分４５に相当する。実施形態では、前記第１係合部分４５は合鍵Ｙの平坦部７１の一側上面と一側下面に形成された上下一対の切欠溝ａに係合するように上下に一対形成されている。それ故に、前記切欠溝ａと前記第１係合部分４５の係合位置如何によって、第１タンブラー４１のスライト位置が決定付けられる。 Thus, reference numeral 43 denotes a blade through hole formed in the center. In the embodiment, the blade through hole 43 has a lateral rectangular shape having left and right vertical ends 43a and upper and lower horizontal ends 43b as inner peripheral edges. Is formed. In the substantially central part of the left and right vertical ends 43a, 43a forming the blade through-hole 43, small radially outward cutout grooves 44, 44 communicating with the blade through-hole 43 are formed in an opposing state. Accordingly, the corner portion (four in the embodiment) where the horizontal end of the small notch groove 44 and the vertical end 43a of the blade through-hole 43 intersect in a substantially orthogonal state is, for example, the edge portion of the flat portion 71 of the blade B of the key Y It corresponds to the first engagement portion 45 that engages with the notch groove a formed in 71a. In the embodiment, a pair of the first engaging portions 45 are formed vertically so as to engage with a pair of upper and lower cutout grooves a formed on one upper surface and one lower surface of the flat portion 71 of the key Y. Therefore, the slite position of the first tumbler 41 is determined by the engagement position of the notch groove a and the first engagement portion 45.

４６はブレード用貫通孔４３を挟むように上下に形成された連結棒１９用貫通孔で、この連結棒１９用貫通孔４６は、第１タンブラー４１がタンブラーバネ４２のバネ力に抗して図面上左側にスライドすることから、長孔矩形状に形成されている。したがって、連結棒１９用貫通孔４６は第１タンブラー４１を案内する案内長孔としての機能を果たす。さらに、４７は一端部４１ａと突起状他端部４１ｂに一対形成された案内長孔で、これらの案内長孔４７にはガイド兼連結棒２２がそれぞれ挿通する。 Reference numeral 46 denotes a through hole for the connecting rod 19 formed vertically so as to sandwich the through hole 43 for the blade. The through hole 46 for the connecting rod 19 is shown in the drawing because the first tumbler 41 resists the spring force of the tumbler spring 42. Since it slides to the upper left side, it is formed in a long hole rectangular shape. Therefore, the through hole 46 for the connecting rod 19 functions as a guide long hole for guiding the first tumbler 41. Further, 47 is a pair of guide long holes formed in the one end portion 41a and the projecting other end portion 41b, and the guide and connecting rods 22 are inserted through these guide long holes 47, respectively.

次に、図９乃至図１２を参照にして環状に形成された第２の可動障害子Ｚを説明する。図９は図３と同様の縦断面図で、内筒本体１５の各タンブラー収容部２７内にそれぞれタンブラーバネ４２に付勢された状態で外筒体２の内周面２ａに大きな弧状面の一端部が圧接した状態で見えるのが第２タンブラー５１である。 Next, the second movable obstacle Z formed in an annular shape will be described with reference to FIGS. FIG. 9 is a longitudinal sectional view similar to FIG. 3, and a large arcuate surface is formed on the inner peripheral surface 2 a of the outer cylindrical body 2 while being urged by the tumbler spring 42 in each tumbler accommodating portion 27 of the inner cylindrical main body 15. The second tumbler 51 can be seen in a state where the one end is in pressure contact.

したがって、図１０は可動障害子Ｚを構成する３種類のタンブラーの内の第２タンブラー５１の正面図である。この第２タンブラー５１は、ブレード用貫通孔５３及び該ブレード用貫通孔５３を形成する上下の水平端５３ｂの中央部に半径内方向に突設形成された第２係合部分５５を除き、その余の構成は前述した第１タンブラー４１と同様なので、説明の便宜上、同一の符号を付して重複する説明を割愛する。 Therefore, FIG. 10 is a front view of the second tumbler 51 among the three types of tumblers constituting the movable obstacle Z. The second tumbler 51 has a blade through-hole 53 and a second engaging portion 55 that is formed projecting radially inwardly at the center of the upper and lower horizontal ends 53b that form the blade through-hole 53. Since the remaining configuration is the same as that of the first tumbler 41 described above, the same reference numerals are assigned for the sake of convenience of description, and redundant descriptions are omitted.

なお、図１０で示すように、第１タンブラー４１の場合と同様に上下左右の各端部は、ここでも「一端部５１ａ」、「突起状他端部５１ｂ」、「上端部５１ｃ」、「下端部５１ｄ」とする。この第２タンブラー５１も第１タンブラー４１と同様に非真円形状の環状形態であるが、鍵違いの増大化を図るためにその中心部を水平方向に切断して「ニ分割」にしても良い。 As shown in FIG. 10, as in the case of the first tumbler 41, the upper, lower, left and right end portions are again “one end portion 51 a”, “projection-like other end portion 51 b”, “upper end portion 51 c”, “ The lower end 51d ”. Similarly to the first tumbler 41, the second tumbler 51 has a non-circular annular shape. However, in order to increase the key difference, the center portion thereof is cut in the horizontal direction to be “divided into two”. good.

しかして、第１タンブラー４１の第１係合部分４５と異なる第２タンブラー５１の前記第２係合部分５５は、ブレードＢの平坦部７１の中央部部分にブレードＢの挿入方向に沿って波状に形成された長溝ｂと係合する。付言すると、前記長溝ｂと前記第２係合部分５５の係合位置如何によって、第２タンブラー５１のスライト位置が決定付けられる。 Thus, the second engagement portion 55 of the second tumbler 51, which is different from the first engagement portion 45 of the first tumbler 41, is wavy along the insertion direction of the blade B in the central portion of the flat portion 71 of the blade B. It engages with the long groove b formed in the. In addition, the slite position of the second tumbler 51 is determined by the engagement position of the long groove b and the second engagement portion 55.

図１３乃至図１６を参照にして環状に形成された第３の可動障害子Ｚを説明する。図１３は図３（図９）と同様の縦断面図で、内筒本体１５の各タンブラー収容部２７内にそれぞれタンブラーバネ４２に付勢された状態で外筒体２の内周面２ａに大きな弧状面の一端部が圧接した状態で見えるのが第３タンブラー６１である。 A third movable obstacle Z formed in an annular shape will be described with reference to FIGS. 13 to 16. FIG. 13 is a longitudinal sectional view similar to FIG. 3 (FIG. 9), and is applied to the inner peripheral surface 2 a of the outer cylindrical body 2 while being urged by the tumbler spring 42 in each tumbler accommodating portion 27 of the inner cylindrical main body 15. The third tumbler 61 can be seen in a state where one end portion of the large arcuate surface is in pressure contact.

したがって、図１４は可動障害子Ｚを構成する３種類のタンブラーの内の第３タンブラー５１の正面図である。この第３タンブラー６１は、ブレード用貫通孔６３及び該ブレード用貫通孔６３を形成する左右の垂直端６３ａのいずれか一方（実施形態）又は両方の中央部に半径内方向に突設形成された第３係合部分６５を除き、その余の構成は前述した第１タンブラー４１や第２タンブラー５１と同様なので、説明の便宜上、第１タンブラー４１と同一の符号を付して重複する説明を割愛する。 Accordingly, FIG. 14 is a front view of the third tumbler 51 among the three types of tumblers constituting the movable obstacle Z. The third tumbler 61 is formed so as to project radially inward at either one (embodiment) of the blade through-hole 63 and the left and right vertical ends 63a forming the blade through-hole 63 or in the center of both. Except for the third engaging portion 65, the rest of the configuration is the same as that of the first tumbler 41 and the second tumbler 51 described above, and therefore, for convenience of explanation, the same reference numerals as those of the first tumbler 41 are used and redundant explanation is omitted. To do.

なお、図１４で示すように、第１タンブラー４１の場合と同様に上下左右の各端部は、ここでも「一端部６１ａ」、「突起状他端部６１ｂ」、「上端部６１ｃ」、「下端部６１ｄ」とする。 As shown in FIG. 14, as in the case of the first tumbler 41, the top, bottom, left and right end portions are again “one end portion 61 a”, “projection-like other end portion 61 b”, “top end portion 61 c”, “ The lower end 61d ”.

しかして、第１タンブラー４１の第１係合部分４５と異なる第３タンブラー６１の前記第３係合部分６５は、ブレードＢの平坦部７１の側端部の中央部分に形成された窪みｃと係合する。付言すると、前記窪みｃと前記第３係合部分６５の係合位置如何によって、第３タンブラー６１のスライト位置が決定付けられる。 Thus, the third engagement portion 65 of the third tumbler 61, which is different from the first engagement portion 45 of the first tumbler 41, has a recess c formed in the central portion of the side end portion of the flat portion 71 of the blade B. Engage. In other words, the slite position of the third tumbler 61 is determined by the engagement position of the recess c and the third engagement portion 65.

図１７は、本発明のシリンダー錠が、内周面２ａにロックカム溝１１を有する外筒体２と、この外筒体２に回動自在に嵌合すると共に半径方向の解錠切欠１３を有する内筒体３と、この内筒体３に設けられていると共に前記ロックカム溝１１と係脱するロッキングバー１２（一つでも良い）と、前記内筒体３のタンブラー収容部２７にタンブラーバネ４２のバネ力に抗して半径方向にスライド自在に設けられ、かつ合鍵ＹのブレードＢの異なる部位にそれぞれ形成された少なくとも３種類の被係合部分（望ましくは大小の切欠溝ａと、波状の長溝ｂと、望ましくは大小の窪みｃ）に対応して係合する３種類の係合部分（第１係合部分４５、第２係合部分５５、第３係合部分６５）をそれぞれ有する少なくとも３種類の可動障害子Ｚとから成ることを示す。 FIG. 17 shows that the cylinder lock of the present invention has an outer cylindrical body 2 having a lock cam groove 11 on the inner peripheral surface 2a, and a radially unlocked notch 13 that is rotatably fitted to the outer cylindrical body 2. An inner cylinder 3, a locking bar 12 (one may be provided) that is provided on the inner cylinder 3 and engages / disengages with the lock cam groove 11, and a tumbler spring 42 in the tumbler housing portion 27 of the inner cylinder 3. And at least three types of engaged portions (preferably large and small notch grooves a and wavy shapes) that are formed to be slidable in the radial direction against the spring force of each and formed in different parts of the blade B of the key Y At least three types of engagement portions (first engagement portion 45, second engagement portion 55, and third engagement portion 65) that engage with the long groove b and desirably the large and small recesses c) are provided. It consists of three kinds of movable obstacles Z It is shown the door.

図１８乃至図２３を参照にして、本発明の合鍵Ｙの一例を説明する。これらの図に於いて、Ｙは合鍵、Ｂはブレード（差し込み部分）、７１は平坦部、７１ａは平坦部の一側上面、７１ｂは平坦部の一側下面、ｂは合鍵のブレードの平面視上或いは斜視上の中央部部分にブレードの挿入方向に沿って波状に形成された長溝、ｃはブレードＢの側面視上の側壁部分の略中央部に形成された窪み、ａは前記長溝ｂと窪みｃとの間に非連通状態に位置し、かつ平面視上或いは斜視上の外周面（一側上面７１）の縁部から中央部寄りの部位に向かって形成された切欠溝である。 An example of the combined key Y of the present invention will be described with reference to FIGS. In these drawings, Y is a key, B is a blade (insertion portion), 71 is a flat portion, 71a is one upper surface on the flat portion, 71b is one lower surface on the flat portion, and b is a plan view of the blade of the key lock. A long groove formed in a wave shape along the insertion direction of the blade in the central portion on the upper or perspective view, c is a recess formed in a substantially central portion of the side wall portion of the blade B in a side view, and a is the long groove b It is a notch groove which is located in a non-communication state with the recess c and is formed from an edge portion of the outer peripheral surface (one-side upper surface 71) in plan view or perspective view toward a portion closer to the center portion.

付言すると、実施形態の合鍵Ｙは、４つの直線状縁部を有する長板状ブレードＢの平坦部７１の前記縁部分７１ａに幅方向（ここでは、説明の便宜上、幅方向を「左右」とする。）に形成された複数の切欠溝ａと、同じく前記平坦部の中央部部分にブレードＢの挿入方向に沿って一本の波状に形成された長溝ｂと、ブレードＢの側端部の中央部分に形成された複数の窪みｃをそれぞれ有し、一方、実施形態の３種類の可動障害子Ｚは、合鍵ＹのブレードＢの平坦面（実施形態では図１８を基準として上を一側上面及び下を一側下面）に形成された長溝ｂと左右の側壁面に形成された窪みｃとの間に非連通状態に位置し、かつ平面視上或いは斜視上、直線状縁部から中央部寄りの部位に向かって形成された大小複数の切欠溝ａと係合する第１タンブラー４１と、合鍵ＹのブレードＢの平面視上或いは斜視上の中央部部分にブレードの挿入方向に沿って波状に形成された前記長溝ｂと係合する第２タンブラー５１と、合鍵ＹのブレードＢの側面視上の側壁部分に形成された前記窪みｃと係合する第３タンブラー６１とから成る。 In addition, the key Y of the embodiment has a width direction on the edge portion 71a of the flat portion 71 of the long plate-like blade B having four linear edges (here, the width direction is “left and right” for convenience of explanation). A plurality of notched grooves a formed in the central portion of the flat portion, a long groove b formed in a wave shape along the insertion direction of the blade B, and a side end portion of the blade B. Each of the three movable obstructions Z of the embodiment has a flat surface of the blade B of the key Y (on the upper side with reference to FIG. 18 in the embodiment). It is located in a non-communication state between the long groove b formed on the upper surface and the lower surface on the one side lower surface and the recess c formed on the left and right side wall surfaces, and is centered from the straight edge in plan view or perspective view A first tab that engages with a plurality of large and small cutout grooves a formed toward the portion closer to the portion. A blur 41, a second tumbler 51 that engages with the long groove b formed in a wavy shape along the insertion direction of the blade in a plan view or a perspective portion of the blade B of the key Y, and a blade of the key Y And a third tumbler 61 that engages with the recess c formed in the side wall portion of B in side view.

なお、図１９はブレードＢの外面の適宜箇所に形成された切欠溝ａと、長溝ｂ及び窪みｃを判り易く示したものである。また図２３は、３種類の可動障害子Ｘの各係合部分４５、５５、６５との係合関係を概略的に示したものである。 FIG. 19 shows the notch groove a, the long groove b, and the depression c formed at appropriate locations on the outer surface of the blade B in an easily understandable manner. FIG. 23 schematically shows the engagement relationship of the three types of movable obstacles X with the engagement portions 45, 55, and 65.

図２４乃至図２６は、合鍵Ｙをキー孔６に差し込んだ場合に於における３種類の可動障害子Ｚのスライド位置をそれぞれ示している。合鍵ＹのブレードＢを内筒体３のキー孔６に差し込んだ時、前記ブレードＢの各被係合部分（切欠溝ａ、長溝ｂ及び窪みｃ）に前記可動障害子Ｚの各係合部分（第１係合部分４５、第２係合部分５５、第３係合部分６５）がそれぞれ係合することにより、所定方向へ移動した該可動障害子Ｚの各受け入れ凹所４８がロッキングバー１２の係合板部分１２ｂに対して完全に一致する。 FIGS. 24 to 26 show the slide positions of the three types of movable obstruction Z when the key Y is inserted into the key hole 6. When the blade B of the key Y is inserted into the key hole 6 of the inner cylindrical body 3, each engagement portion of the movable obstruction Z is inserted into each engagement portion (the notch groove a, the long groove b, and the depression c) of the blade B. Each receiving recess 48 of the movable obstruction Z moved in a predetermined direction by the engagement of the (first engagement portion 45, second engagement portion 55, third engagement portion 65) is the locking bar 12. Completely matches the engagement plate portion 12b.

図２７乃至図２９は、図２４乃至図２６の状態に於いて、合鍵Ｙと共に内筒体３を解錠方向へ回動させた時、ロックカム溝１１とロッキングバー１２との間に生じる楔作用により、内筒体３が外筒体２に対して相対回動することを示す。本発明は可動障害子Ｚがタンブラーバネ４２のバネ力に抗して、その受け入れ凹所４８がロッキングバー１２の係合板部分１２ｂと整合する点で、基本的には可動障害子Ｚが外筒体の半径方向にスライドする方式のロータリーディスクタンブラー錠である点で、可動障害子Ｚが支軸を中心にして揺動する振り子式のロータリーディスクタンブラー錠（特許第４００８３０２号の特許発明）とは技術的原理が相違する。 27 to 29 show the wedge action generated between the lock cam groove 11 and the locking bar 12 when the inner cylinder 3 is rotated together with the key Y in the unlocking direction in the state shown in FIGS. This shows that the inner cylinder 3 rotates relative to the outer cylinder 2. In the present invention, the movable obstruction Z basically resists the spring force of the tumbler spring 42, and the receiving recess 48 is aligned with the engaging plate portion 12b of the locking bar 12, so that the movable obstruction Z is basically the outer cylinder. What is a pendulum type rotary disc tumbler lock in which the movable obstacle Z swings around a support shaft (patented invention of Patent No. 4008302) in that it is a rotary disc tumbler lock that slides in the radial direction of the body? The technical principle is different.

まず実施形態では、第１乃至第３タンブラーの形状を任意に設計変更することができる。また図３１及び図３２は、本発明を構成する第１タンブラー４１の異なる実施形態を示す概略説明図で、該第１タンブラー４１Ａは上下に二分割されている。また図３３及び図３４は、本発明を構成する第２タンブラー５１の異なる実施形態を示す概略説明図で、該第１タンブラー５１Ａも、図３１等で示す第１タンブラー４１Ａと同様に上下に二分割されている。なお、第３タンブラー６１には変更はない。このように構成すると、３種類の可動障害子Ｚの内、少なくとも２種類の可動障害子をそれぞれ二分割し、これらの上下を任意に組み合わせることで、さらに鍵違いの増大化を得ることができる多種類のシリンダー錠を提供することができる。 First, in the embodiment, the design of the first to third tumblers can be arbitrarily changed. 31 and 32 are schematic explanatory views showing different embodiments of the first tumbler 41 constituting the present invention, and the first tumbler 41A is vertically divided into two. FIG. 33 and FIG. 34 are schematic explanatory views showing different embodiments of the second tumbler 51 constituting the present invention. The first tumbler 51A is also vertically moved in the same manner as the first tumbler 41A shown in FIG. It is divided. The third tumbler 61 is not changed. With this configuration, at least two of the three types of movable obstacles Z are divided into two parts, and the upper and lower sides can be arbitrarily combined to further increase the key difference. Many kinds of cylinder locks can be provided.

次に、図３５は合鍵の第２実施形態を示す斜視図である。実施形態の合鍵ＹのブレードＢは、普通一般に使用されている長板のものであるが、例えば合鍵Ｙ１のブレードＢ１は、長板のものではなく、図３５及び図３６に示すように外周面の一部又は全部が曲線状に形成された棒状のものであっても良い。この場合には、ブレードＢ１に「明確な縁部」が存在しないものもあり得るので、図３６の概略断面説明図を参照にして、第１乃至第３タンブラー４１Ａ、５１Ａ、６１の３種類の各係合部分（第１係合部分４５、第２係合部分５５、第３係合部分６５）に対応するブレードＢ１の３種類の各被係合部分（切欠溝ａ、波状長溝ｂ、窪みｃ）の形成位置を説明すると次の通りである。 Next, FIG. 35 is a perspective view showing a second embodiment of the key combination. The blade B of the key Y in the embodiment is of a generally used long plate, but the blade B1 of the key Y1 is not of a long plate, for example, as shown in FIGS. 35 and 36. A part or all of the rod may be formed in a curved shape. In this case, the blade B1 may not have a “clear edge”, so the three types of first to third tumblers 41A, 51A, and 61 are referred to with reference to the schematic sectional view of FIG. Three types of engaged portions (notch groove a, wave-like long groove b, depression) of blade B1 corresponding to each engaging portion (first engaging portion 45, second engaging portion 55, third engaging portion 65) The formation position of c) will be described as follows.

すなわち、図３６に於いて、ＨはブレードＢ１の断面の中心部（軸線）Ｏと直交する水平線とし、一方、Ｖを前記中心部（軸線）Ｏと直交する垂直線とした場合に於いて、前記垂直線Ｖが通るブレードＢ１の外周面の一部に前記波状長溝ｂが形成され、この波状長溝ｂの形成位置に対して略９０度と成る前記水平線Ｈが通るブレードＢ１の外周面の一部に前記窪みｃが形成され、さらに、前記波状長溝ｂと前記窪みｃの間で、これらの被係合部分と連通しないようにブレードＢ１の外周面の一部に前記切欠溝ａがブレードＢ１の中心部寄りの部位に向かって形成されている。実施形態では、前記窪みｃはすり鉢形状であり、また前記切欠溝ａは端面Ｌ字形状である。 That is, in FIG. 36, H is a horizontal line orthogonal to the center (axis) O of the cross section of the blade B1, while V is a vertical line orthogonal to the center (axis) O. The wavy long groove b is formed in a part of the outer peripheral surface of the blade B1 through which the vertical line V passes, and the one of the outer peripheral surface of the blade B1 through which the horizontal line H is about 90 degrees with respect to the formation position of the wavy long groove b. The recess c is formed in a portion, and the notch groove a is formed in a part of the outer peripheral surface of the blade B1 so as not to communicate with the engaged portion between the waved long groove b and the recess c. It is formed toward a portion closer to the center of. In the embodiment, the recess c has a mortar shape, and the notch groove a has an L-shaped end surface.

しかして、図３７の（ａ）は上下に二分割した第１タンブラー４１Ａの第１係合部分４５と合鍵ＹＩのブレードＢ１の切欠溝ａとの係合を示す概略説明図、図３７の（ｂ）は上下に二分割した第２タンブラー５１Ａの第２係合部分５５と前記ブレードＢ１の長溝ｂとの係合を示す概略説明図、図３７の（ｃ）は第３タンブラー６１の第３係合部分６５とブレードＢ１の窪みｃとの係合を示す概略説明図である。 FIG. 37 (a) is a schematic explanatory view showing the engagement between the first engagement portion 45 of the first tumbler 41A divided into two vertically and the notch groove a of the blade B1 of the key YI. FIG. 37B is a schematic explanatory view showing the engagement between the second engagement portion 55 of the second tumbler 51A divided into the upper and lower parts and the long groove b of the blade B1, and FIG. 37C is the third illustration of the third tumbler 61. It is a schematic explanatory drawing which shows engagement with the engaging part 65 and the hollow c of blade B1.

ところで、図３７の（ａ）乃至（ｃ）は、第１タンブラー４１Ａ、第２タンブラー５１Ａの２種類のみ二分割されている実施形態であるが、次に説明するように第３タンブラー６１Ａも、前記第１タンブラー４１Ａや第２タンブラー５１Ａと同様に二分割しても良い。 By the way, (a) thru | or (c) of FIG. 37 is embodiment which only two types, the 1st tumbler 41A and the 2nd tumbler 51A, are divided into two, but the 3rd tumbler 61A, as will be described below, Similarly to the first tumbler 41A and the second tumbler 51A, it may be divided into two.

すなわち、第１タンブラー、第２タンブラー及び第３タンブラーの全部が、複数のガイド棒２２を介して二分割されている実施形態である。そこで、念のために図３８及び図３９は、第３タンブラー６１Ａもガイド棒を介して二分割されていることを示す。
ここで、図３９を参照にして第１実施形態の第３タンブラー６１（図１４）との相違点を簡単に説明すると、第３タンブラー６１Ａは上下に二分割されていることから、第１実施形態の第３タンブラー６１の中央部の左右の案内長孔４７が、第３タンブラー６１Ａでは左右に切断された空間部分４７Ａ、４７Ａとなっている。その余の構成は第３タンブラー６１（図１４）と同様なので、同一の符号を付して重複する説明を割愛する。 That is, the first tumbler, the second tumbler, and the third tumbler are all divided into two via the plurality of guide rods 22. Therefore, as a precaution, FIGS. 38 and 39 show that the third tumbler 61A is also divided into two parts through the guide rod.
Here, the difference from the third tumbler 61 (FIG. 14) of the first embodiment will be briefly described with reference to FIG. 39. Since the third tumbler 61A is vertically divided into two parts, the first embodiment is described. In the third tumbler 61A, left and right guide slots 47 at the center of the third tumbler 61 of the form form space portions 47A and 47A cut to the left and right. Since the rest of the configuration is the same as that of the third tumbler 61 (FIG. 14), the same reference numerals are assigned and redundant description is omitted.

図４０及び図４１は、タンブラー錠が第３タンブラー６１Ａを採用した場合に使用される合鍵Ｙ２の第３実施形態を示す各説明図である。この合鍵Ｙ２は、第２実施形態の合鍵Ｙ１の設計変更例であるから、合鍵Ｙ１と同一の部分には同一の符号を付して重複する説明を省略する。この合鍵Ｙ２は、第３タンブラー６１Ａの突起状の上下の係合部分６５、６５に対応するように、断面トラック形状の左右の側壁部分に上下の窪みｃ、ｃがそれぞれ形成され、これら上下の窪みｃ、ｃは、ブレードＢ１の長手方向（合鍵の挿入方向）に所要間隔を有して複数個形成されている。 40 and 41 are explanatory diagrams showing a third embodiment of the combined key Y2 used when the tumbler lock adopts the third tumbler 61A. Since this key Y2 is an example of a design change of the key Y1 of the second embodiment, the same parts as those of the key Y1 are denoted by the same reference numerals and redundant description is omitted. The key Y2 has upper and lower depressions c and c formed on the left and right side wall portions of the cross-sectional track shape so as to correspond to the projecting upper and lower engaging portions 65 and 65 of the third tumbler 61A. A plurality of indentations c and c are formed with a required interval in the longitudinal direction of blade B1 (the direction in which the key is inserted).

以上のように、他の実施形態では、第１タンブラー、第２タンブラー、第３タンブラーの内、少なくともいずれか２以上のタンブラーは、ガイド棒を介して二分割されているので、列方向の上下のタンブラーを任意に組み合わせ、さらに複雑な鍵違いを得ることができる。 As described above, in other embodiments, at least any two or more of the first tumbler, the second tumbler, and the third tumbler are divided into two via the guide rod, so Any combination of tumblers can be combined to obtain more complex key differences.

なお、錠本体のキー孔（鍵挿入孔）６の形状は、鍵のブレードＢ、Ｂ１、Ｂ２の半径方向の断面形状に対応して適宜に設計されている。 The shape of the key hole (key insertion hole) 6 of the lock body is appropriately designed corresponding to the cross-sectional shape in the radial direction of the key blades B, B1, B2.

本発明は、錠前や建具の分野で利用することができる。 The present invention can be used in the fields of locks and joinery.

Ｘ…タンブラー錠、
Ｙ、Ｙ１…合鍵、
Ｚ…可動障害子、
Ｂ、Ｂ１、Ｂ２…ブレード、
ａ、ｂ、ｃ…被係合部分（切欠溝ａ、波状長溝ｂ、窪みｃ）、
１…扉、２…外筒体、３…内筒体、
４…錠先端部、６…キー孔、
７…錠後端部７、８…テールピース、
１１…ロックカム溝、
１２…ロッキングバー、１２ａ…尖端部、１２ｂ…係合板部分、
１３…解錠切欠、１４…付勢バネ、
１５…内筒本体、
１６…仕切板
１８…連結孔、
２２…ガイド兼連結棒（ガイド棒）、
２７…タンブラー収容部、
２８…タンブラーバネ収容部２８、
Ｚ…可動障害子、
４１、４１Ａ…第１タンブラー、
５１、５１Ａ…第２タンブラー、
６１、６１Ａ…第３タンブラー、
４２…タンブラーバネ、
４５、５５、６５…係合部分、
４５…第１係合部分、
４７…案内長孔、４７Ａ…切断された空間部分、
４８…受け入れ凹所、
５５…第２係合部分、６５…第３係合部分、
７１…平坦部、７１ａ…縁部分。 X ... tumbler lock,
Y, Y1 ... key,
Z ... Movable obstacle,
B, B1, B2 ... Blade,
a, b, c ... engaged portion (notch groove a, wavy long groove b, recess c),
1 ... door, 2 ... outer cylinder, 3 ... inner cylinder,
4 ... lock tip, 6 ... key hole,
7: Lock rear end 7, 8 ... Tailpiece,
11 ... Lock cam groove,
12 ... Rocking bar, 12a ... Point, 12b ... Engagement plate part,
13 ... unlock notch, 14 ... biasing spring,
15 ... inner cylinder body,
16 ... partition plate 18 ... connection hole,
22 ... Guide and connecting rod (guide rod),
27 ... Tumbler housing,
28 ... Tumbler spring accommodating portion 28,
Z ... Movable obstacle,
41, 41A ... the first tumbler,
51, 51A ... the second tumbler,
61, 61A ... Third tumbler,
42 ... Tumbler spring,
45, 55, 65 ... engaging portion,
45 ... first engaging portion,
47 ... guide slot, 47A ... cut space part,
48 ... Receiving recess,
55 ... 2nd engagement part, 65 ... 3rd engagement part,
71: flat portion, 71a: edge portion.

Claims

A long cylindrical outer cylinder having a lock cam groove on the inner peripheral surface, an inner cylinder that is rotatably fitted to the outer cylinder and has an unlocking notch in the radial direction, and provided in the inner cylinder. And a locking bar that engages with and disengages from the lock cam groove, and is slidable in the radial direction against the spring force of the tumbler spring in the tumbler housing portion of the inner cylinder, and is provided at different parts of the blade of the key lock, respectively. Comprising at least three types of movable obstacles each having an engaging portion that engages with at least three types of engaged portions formed,
The three kinds of movable obstacles are respectively formed on the left and right edge portions in the width direction of the flat portion of the blade of the combined key from the straight edge portion of the side end portion toward the portion closer to the center portion, and the insertion of the blade A plurality of first tumblers (41) having first engaging portions (45) respectively engaged with a plurality of notch grooves (a) formed in the direction, and a blade insertion direction in the central portion of the flat portion. A plurality of second tumblers (51) having a second engaging portion (55) that engages with a long groove (b) formed in a wavy shape along the center, and a central portion of the side end portion of the key lock blade The first to third tumblers (41), (51) are composed of a plurality of third tumblers (61) each having a third engaging portion (65) that engages with a plurality of large and small recesses (c). , (61) are partition plates in the insertion direction of the key. 16) is disposed at an arbitrary position via,
When the blade of the key is inserted into the key hole of the inner cylinder, the engagement portions of the three kinds of movable obstacles are engaged with the engaged portions of the blade, respectively, so that the blade moves in a predetermined direction. Receiving recesses of the three kinds of movable obstacles coincide with the engagement plate portion of the locking bar, and therefore when the inner cylinder is rotated in the unlocking direction together with the key, the lock cam groove and the A rotary disc tumbler lock in which the inner cylinder rotates relative to the outer cylinder by a wedge action generated between the locking bar and the locking bar.

The lock cam groove according to claim 1, wherein the lock cam groove is formed symmetrically with respect to the axis of the outer cylinder, and correspondingly, the pair of locking bars are respectively urged radially outward by the urging springs. A rotary disc tumbler lock, wherein the rotary disc tumbler lock is disposed in each unlocking notch of the inner cylinder.

2. The rotary disc tumbler lock according to claim 1, wherein at least any two of the first tumbler, the second tumbler, and the third tumbler are divided into two via a guide rod.

A long cylindrical outer cylindrical body having a lock cam groove on the inner peripheral surface, an inner cylindrical body that is rotatably fitted to the outer cylindrical body and has a radial unlocking notch, and provided in the inner cylindrical body And a locking bar that engages with and disengages from the lock cam groove, and is slidable in the radial direction against the spring force of the tumbler spring in the tumbler housing portion of the inner cylinder, and is provided at different parts of the blade of the key lock, respectively. It comprises at least three types of movable obstacles each having an engaging portion that engages with at least three types of engaged portions formed, and the keyed blade has no flat portion and its outer periphery The surface is a rod having a curved shape, and symbol H is a horizontal line perpendicular to the center (axis) O of the longitudinal section of the blade B1, while symbol V is orthogonal to the center (axis) O. For vertical lines In each of the upper and lower portions of the outer peripheral surface of the blade through which the vertical line V passes, a wavy long groove is formed as one of the engaged portions, and is approximately 90 degrees with respect to the formation position of these wavy long grooves. Recesses as other ones of the engaged parts are respectively formed on the left and right portions of the outer peripheral surface of the blade through which the horizontal line H passes, and further, between these wavy long grooves and the recesses, A cutout groove as another part of the engaged portion is formed on a part of the outer peripheral surface of the blade so as not to communicate with the wavy long groove toward the portion near the center of the blade. Rotary disc tumbler tablets.