JP2017150187A

JP2017150187A - Cylinder lock

Info

Publication number: JP2017150187A
Application number: JP2016032023A
Authority: JP
Inventors: 真成堂北; Masanari Dokita
Original assignee: Shibutani Co Ltd
Current assignee: Shibutani Co Ltd
Priority date: 2016-02-23
Filing date: 2016-02-23
Publication date: 2017-08-31
Anticipated expiration: 2036-02-23
Also published as: JP6700062B2

Abstract

PROBLEM TO BE SOLVED: To provide a cylinder lock with the sealing function capable of easily separately making a specification of allowing extraction of a key in both a locking sealing state and an unlocking unsealed state and a specification of allowing the extraction of the key only in the locking sealing state.SOLUTION: A cylinder lock comprises a motion conversion mechanism for properly converting rotation of a predetermined angle of an inner cylinder 10 into rotation between a first attitude and a second attitude of a sealing operation body 30 and reciprocating motion in the axial direction. A first groove 23 and a second groove 24 opened on the cylinder tip side, a cylinder thickness part 25 and a second groove 24 for blocking up the first groove 23, are oppositely formed in the cylinder radial direction on an inner surface of an outer cylinder 20. The inner cylinder 10 holds inner cylinder rotation stopping first tumblers 41 and 42. The inner cylinder 10 is retreated to the second groove 24 by contact with a key 50 in an inner cylinder rotation position corresponding to a locking sealing state, and can hold a second tumbler 43 for checking extraction of the key 50 by contact with the key 50 and butting with the cylinder thickness part 25 in the inner cylinder rotation position corresponding to the unlocking unsealed state.SELECTED DRAWING: Figure 2

Description

この発明は、シリンダ錠に関し、特に、配電盤、分電盤等の密閉性が要求される収納部に好適なものに関する。 The present invention relates to a cylinder lock, and particularly relates to a cylinder lock that is suitable for a storage unit such as a switchboard or a distribution board that requires airtightness.

一般に、水密ないし気密な密閉性を要求される場合、扉と扉枠の間にパッキンを備え、パッキンを扉で圧縮する扉密閉構造が採用されている。この種の扉密閉構造においては、従来、密閉ハンドル装置が利用されている。密閉ハンドル装置は、扉又は扉枠にハンドルを備え、扉枠又は扉にハンドル受けを備え、回転するハンドルとハンドル受けの勾配をもった摺動により、ハンドルの回転を扉のパッキン圧縮側への移動に変換し、その後、ハンドル受けとハンドルの係止によって扉をパッキン圧縮位置に保つことができるようになっている（例えば、特許文献１）。 In general, when watertight or airtight sealing is required, a door sealing structure is employed in which a packing is provided between the door and the door frame and the packing is compressed by the door. In this type of door sealing structure, a sealing handle device has been conventionally used. The hermetic handle device includes a handle on the door or door frame, a handle receiver on the door frame or door, and the rotation of the handle to the packing compression side of the door by sliding with the rotating handle and the gradient of the handle receiver. After converting to movement, the door can be kept in the packing compression position by locking the handle receiver and the handle (for example, Patent Document 1).

また、密閉ハンドル装置で扉を密閉する場合、不正な扉の開放を防止するため、施錠が行われる。その施錠には、各種のシリンダ錠が利用されている（例えば、特許文献２）。密閉ハンドル装置とシリンダ錠を採用する場合、密閉ハンドル装置による開閉操作の後に、シリンダ錠を施解錠操作する、という二手間が必要となる。 Further, when the door is sealed with the sealing handle device, locking is performed to prevent unauthorized opening of the door. Various cylinder locks are used for the locking (for example, Patent Document 2). When the hermetic handle device and the cylinder lock are employed, it is necessary to perform the two steps of locking and unlocking the cylinder lock after the opening / closing operation by the hermetic handle device.

一方、シリンダ錠に、内筒の回動と密閉操作体の回動及び軸線方向の往復移動とを連動させるための回り止め機構と運動変換機構とを設け、鍵回し操作によって密閉操作体を軸線方向に往復移動させるものも提案されている（特許文献３）。このような密閉機能付きのシリンダ錠を使用すれば、軸線方向に往復移動する密閉操作体によって扉又は扉枠を押し、パッキンの圧縮を行うことが可能なため、扉の施錠密閉又は解錠密閉解除を鍵回し操作の一手間で済ますことができる。 On the other hand, the cylinder lock is provided with an anti-rotation mechanism and a motion conversion mechanism for interlocking the rotation of the inner cylinder, the rotation of the sealing operation body, and the reciprocation in the axial direction, and the axis of the sealing operation body by the key-turning operation A device that reciprocates in a direction has also been proposed (Patent Document 3). If such a cylinder lock with a sealing function is used, the door or door frame can be pushed by the sealing operation body that reciprocates in the axial direction, and the packing can be compressed, so that the door is locked or unlocked. The release can be done with one key operation.

特開平８−２０９９８９号公報JP-A-8-209989 特開２０１５−８１４７２号公報Japanese Patent Laying-Open No. 2015-81472 特表２００２−５３７５０６号公報Japanese translation of PCT publication No. 2002-537506

しかしながら、特許文献３のような密閉機能付きのシリンダ錠においては、施錠密閉状態と解錠非密閉状態のいずれでも鍵の引き抜きを許すような管理を行いたい需要者と、施錠密閉状態のみで鍵の引き抜きを許すような管理を行いたい需要者とが存在する。これら両需要に応えるには、内部構造を異ならせた二仕様の製品を市場に供給する必要があり、製造上の負担になる。 However, in a cylinder lock with a sealing function as in Patent Document 3, a customer who wants to perform management that allows the key to be pulled out in either a locked sealed state or an unlocked non-sealed state, and a lock only in the locked sealed state. There is a consumer who wants to perform management that allows for withdrawal. In order to meet these two demands, it is necessary to supply products with two specifications with different internal structures to the market, which is a manufacturing burden.

上述の背景に鑑み、この発明が解決しようとする課題は、施錠密閉状態と解錠非密閉状態の両方で鍵の引き抜きを許す管理に対応可能な仕様のものと、施錠密閉状態のみで鍵の引き抜きを許す管理に対応可能な仕様のものとを簡単に作り分けることが可能な密閉機能付きのシリンダ錠を得ることである。 In view of the above-mentioned background, the problem to be solved by the present invention is that of a specification that can handle management that allows the key to be pulled out in both the locked and unlocked state and the unlocked and sealed state, The objective is to obtain a cylinder lock with a sealing function that can be easily made separately from those with specifications that allow management to be pulled out.

上記課題を解決するため、この発明は、鍵穴部を有する内筒と、前記内筒を軸線回りに回動可能に収容する外筒と、前記軸線回りに所定方向を向いた第一姿勢及び当該第一姿勢と所定角度異なる方向に向いた第二姿勢間を回動可能かつ当該第一姿勢の状態で軸線方向に往復移動可能に配置された密閉操作体と、前記第一姿勢の前記密閉操作体の一方向回転を阻止すると共に前記内筒の一方向回転を当該密閉操作体の軸線方向一方側への移動に変換し、当該一方側へ移動した密閉操作体の他方向回転を阻止すると共に当該内筒の他方向回転を当該密閉操作体の軸線方向他方側への移動に変換し、当該他方側へ移動し切った当該密閉操作体の当該第一姿勢及び前記第二姿勢間での回動と当該内筒の回動を一体的に連動させる運動変換機構と、を備えるシリンダ錠において、前記外筒の内面に、筒先側へ開放し筒奥側で閉塞した第一溝と、当該第一溝と筒径方向に対向しかつ当該筒先側へ開放した第二溝と、当該第二溝と筒径方向に対向する位置で当該第一溝を閉塞する筒肉部とが形成されており、前記内筒が、前記一方側へ移動し切った前記密閉操作体となったときの内筒回転位置及び前記第二姿勢の前記密閉操作体となったときの内筒回転位置の二位置のいずれでも、前記鍵穴部に挿入された前記鍵との接触によって前記第一溝又は前記第二溝から当該内筒内に退避させられる第一タンブラを保持しており、前記内筒が、前記二位置のいずれか一方で前記鍵穴部から引き抜かれる前記鍵との接触によって前記第二溝に退避させられ、かつ他方で前記鍵穴部から引き抜かれる前記鍵との接触及び前記筒肉部との突き当りによって当該鍵の引き抜きを阻止する第二タンブラを保持可能なものとされている、という構成を採用した。 In order to solve the above-described problems, the present invention includes an inner cylinder having a keyhole portion, an outer cylinder that accommodates the inner cylinder so as to be rotatable around an axis, a first posture that faces a predetermined direction around the axis, and A sealing operation body arranged to be rotatable between second postures oriented in a direction different from the first posture by a predetermined angle and reciprocally movable in the axial direction in the state of the first posture, and the sealing operation of the first posture While preventing one-way rotation of the body, converting one-way rotation of the inner cylinder to movement of the sealing operation body to one side in the axial direction, and preventing rotation of the sealing operation body moved to the one side in the other direction The other direction rotation of the inner cylinder is converted into the movement of the sealing operation body to the other side in the axial direction, and the rotation of the sealing operation body that has moved all the way to the other side is rotated between the first posture and the second posture. A motion conversion mechanism that integrally interlocks movement and rotation of the inner cylinder. In the cylinder lock, on the inner surface of the outer cylinder, a first groove opened to the cylinder tip side and closed on the cylinder back side, a second groove facing the first groove in the cylinder radial direction and opened to the cylinder tip side, A cylindrical wall portion that closes the first groove is formed at a position facing the second groove and in the cylinder radial direction, and the inner cylinder is the sealing operation body that has completely moved to the one side. The first groove is brought into contact with the key inserted into the key hole portion at any of the two positions of the inner cylinder rotation position when the inner cylinder rotation position is reached and the inner cylinder rotation position when the second operating position is the sealing operation body. Alternatively, the first tumbler that is retracted from the second groove into the inner cylinder is held, and the inner cylinder is brought into contact with the key that is pulled out from the key hole portion at one of the two positions. With the key retracted in the two grooves and withdrawn from the keyhole on the other side Catalyst and employing a configuration that is as capable of holding the second tumblers to prevent withdrawal of the key by the abutment of the cylindrical wall portion.

上記構成によれば、第二姿勢の密閉操作体が往復移動のストロークの一端部にあるとき、内筒の所定角度の一方向回転は、運動変換機構により、密閉操作体の第一姿勢への回転と、この後の一方側への移動とに変換される。このため、第一姿勢の密閉操作体が一方側へ移動し切ってストロークの他端部に至る。このときの内筒回転位置からの内筒の所定角度の他方向回転は、運動変換機構により、密閉操作体の他方側への移動と、この後の第二姿勢への回転とに変換される。このため、第一姿勢の密閉操作体が他方側へ移動し切ってストロークの一端部に至ってから第二姿勢となる。したがって、密閉操作体の第一姿勢又は第二姿勢を施錠姿勢とし、これと反対の第二姿勢又は第一姿勢を解錠姿勢とし、また、密閉操作体の往復移動で扉の密閉と密閉解除を行うように使用可能な密閉機能付きのシリンダ錠とすることができる。
また、一方側へ移動し切った密閉操作体となったときの内筒回転位置及び第二姿勢の密閉操作体となったときの内筒回転位置の二位置のいずれでも、鍵穴部に鍵が未挿入の場合、第一タンブラは、外筒の内面で筒径方向に対向する第一溝又は第二溝に進出して内筒を回り止めし、鍵の挿入により、内筒内に退避させられる。したがって、第二タンブラの有無を問わず、施錠機能を実現することができる。
また、内筒が第二タンブラを保持可能なものとされているので、第二タンブラの有無だけを異ならせれば、二仕様のシリンダ錠に作り分けることが可能である。
第二タンブラを有するシリンダ錠に組み立てた場合、前記二位置のいずれか一方では、第二タンブラが、鍵穴部から引き抜かれる鍵との接触によって第二溝に退避させられるので、鍵を引き抜くことが可能である。これと反対に、二位置の他方では、第二タンブラが、鍵穴部から引き抜かれる鍵と接触しても、外筒の内面の筒肉部と突き当って退避することができず、鍵との接触及び筒肉部との突き当りによって鍵の引き抜きを阻止する。したがって、施錠密閉状態のみで鍵の引き抜きを許す管理に対応可能な仕様のシリンダ錠となる。
逆に、第二タンブラを具備しないシリンダ錠に組み立てた場合、前記二位置のいずれでも鍵を引き抜くことが可能である。したがって、施錠密閉状態と解錠非密閉状態の両方で鍵の引き抜きを許す管理に対応可能な仕様のシリンダ錠となる。
第一溝、第二溝、筒肉部を外筒の内面に形成しているので、二仕様に応じて外筒を作り分けることが不要である。また、筒先側に向かって開放した第一溝及び第二溝や、筒奥側で第一溝を閉塞する筒肉部は、外筒を成型する際にアンダーカットとならず、外筒の製造が複雑、困難化することもない。
すなわち、シリンダ錠の組み立てにおいて第二タンブラの有無のみを異ならせるだけの簡単さで、二仕様のシリンダ錠を作り分けることが可能である。 According to the above configuration, when the sealing operation body in the second posture is at one end of the stroke of the reciprocating movement, the unidirectional rotation of the inner cylinder is performed by the motion conversion mechanism to the first posture of the sealing operation body. It is converted into rotation and subsequent movement to one side. For this reason, the sealing operation body in the first posture moves to one side and reaches the other end of the stroke. The other direction rotation of the inner cylinder at a predetermined angle from the inner cylinder rotation position at this time is converted into the movement of the sealing operation body to the other side and the subsequent rotation to the second posture by the motion conversion mechanism. . For this reason, it becomes a 2nd attitude | position after the sealing operation body of a 1st attitude | position moves to the other side and reaches the one end part of a stroke. Therefore, the first position or the second position of the sealing operation body is set to the locking position, the opposite second position or the first position is set to the unlocking position, and the door is sealed and released by the reciprocating movement of the sealing operation body. It can be set as the cylinder lock with a sealing function which can be used so that it may perform.
In addition, the key hole portion has a key in either of the two positions of the inner cylinder rotation position when it has moved to one side and the inner cylinder rotation position when it has become the second position of the sealing operation body. When not inserted, the first tumbler advances into the first groove or the second groove facing the cylinder radial direction on the inner surface of the outer cylinder to prevent the inner cylinder from rotating, and is retracted into the inner cylinder by inserting a key. It is done. Therefore, the locking function can be realized with or without the second tumbler.
Further, since the inner cylinder is capable of holding the second tumbler, it is possible to make two types of cylinder locks by changing only the presence or absence of the second tumbler.
When assembled into a cylinder lock having a second tumbler, in either one of the two positions, the second tumbler is retracted into the second groove by contact with the key pulled out from the keyhole, so that the key can be pulled out. Is possible. On the other hand, in the other of the two positions, even if the second tumbler comes into contact with the key pulled out from the keyhole portion, it cannot abut against the cylindrical portion of the inner surface of the outer cylinder and retreats. The key is prevented from being pulled out by the contact and the contact with the cylindrical portion. Therefore, it becomes a cylinder lock of the specification which can respond to the management which permits extraction of a key only in a lock sealed state.
Conversely, when assembled into a cylinder lock that does not include the second tumbler, the key can be pulled out at either of the two positions. Therefore, the cylinder lock has a specification capable of handling management that allows the key to be pulled out in both the locked and unlocked state.
Since the first groove, the second groove, and the cylindrical portion are formed on the inner surface of the outer cylinder, it is not necessary to make different outer cylinders according to two specifications. In addition, the first groove and the second groove that are open toward the cylinder tip side, and the cylindrical meat part that closes the first groove on the cylinder back side are not undercut when the outer cylinder is molded, and the outer cylinder is manufactured. Is not complicated and difficult.
That is, in assembling the cylinder lock, it is possible to make two types of cylinder locks differently by simply changing the presence or absence of the second tumbler.

このように、この発明は、施錠密閉状態と解錠非密閉状態の両方で鍵の引き抜きを許す管理に対応可能な仕様のものと、施錠密閉状態のみで鍵の引き抜きを許す管理に対応可能な仕様のものとを簡単に作り分けることが可能な密閉機能付きのシリンダ錠を得ることができる。 As described above, the present invention is compatible with the management that allows the withdrawal of the key in both the locked sealed state and the unlocked unsealed state, and the management that permits the withdrawal of the key only in the locked sealed state. It is possible to obtain a cylinder lock with a sealing function that can be easily made separately from the specification.

（ａ）は、この発明の第一実施形態に係るシリンダ錠の施錠密閉状態に対応のときの内筒及び密閉操作体を示す斜視図、（ｂ）は、前記（ａ）から非密閉状態に対応のときまで変化させときの様子を示す斜視図、（ｃ）は、前記（ｂ）から解錠非密閉状態に対応のときまで変化させたときの様子を示す斜視図(A) is a perspective view which shows an inner cylinder and a sealing operation body at the time of respond | corresponding to the locking sealing state of the cylinder lock which concerns on 1st embodiment of this invention, (b) is a non-sealing state from said (a). The perspective view which shows a mode when changing to the time of correspondence, (c) is a perspective view which shows a mode when changing from the said (b) to the time of corresponding to an unlocking non-sealing state. この発明の第一実施形態に係るシリンダ錠を図１（ａ）のＩＩ−ＩＩ線で示す断面図Sectional drawing which shows the cylinder lock which concerns on 1st embodiment of this invention by the II-II line of Fig.1 (a) 第一実施形態に係るシリンダ錠の図１（ａ）のときの要部外観を示す正面図The front view which shows the principal part external appearance at the time of Fig.1 (a) of the cylinder lock which concerns on 1st embodiment. 第一実施形態に係るシリンダ錠を図１（ｃ）のＩＶ−ＩＶ線で示す断面図Sectional drawing which shows the cylinder lock which concerns on 1st embodiment by the IV-IV line of FIG.1 (c). 第一実施形態に係るシリンダ錠の図１（ｃ）のときの要部外観を示す正面図The front view which shows the principal part external appearance at the time of FIG.1 (c) of the cylinder lock which concerns on 1st embodiment. 第一実施形態に係る内筒の分解斜視図Exploded perspective view of the inner cylinder according to the first embodiment 第一実施形態において第二タンブラを具備しない仕様の図２相当の断面図Sectional drawing equivalent to FIG. 2 of the specification which does not comprise the 2nd tumbler in 1st embodiment. 第一実施形態において第二タンブラを具備しない仕様の図４相当の断面図Sectional drawing equivalent to FIG. 4 of the specification which does not comprise the 2nd tumbler in 1st embodiment. 第二実施形態に係るシリンダ錠を示す断面図Sectional drawing which shows the cylinder lock which concerns on 2nd embodiment. 第二実施形態において第二タンブラを具備しない仕様を示す断面図Sectional drawing which shows the specification which does not comprise the 2nd tumbler in 2nd embodiment 第二実施形態に係るシリンダ錠の止め金側の側面図Side view of the clasp side of the cylinder lock according to the second embodiment

この発明の第一実施形態に係るシリンダ錠を添付図面に基づいて説明する。このシリンダ錠は、図１〜図５に示すように、鍵穴部１１を有する内筒１０と、内筒１０を軸線回りに回動可能に収容する外筒２０と、内筒１０に連結された密閉操作体３０とを備える。 A cylinder lock according to a first embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 5, the cylinder lock is connected to the inner cylinder 10 having the keyhole portion 11, the outer cylinder 20 that accommodates the inner cylinder 10 so as to be rotatable about the axis, and the inner cylinder 10. A sealing operation body 30 is provided.

外筒２０は、扉又は扉枠に固定される。外筒２０は、外鍔と、雄ねじ部とを外周に有し、その外鍔と、雄ねじ部に螺合するナット２１（図１、２、４では図示省略）とにより、扉又は扉枠（いずれも図示省略）の壁を軸線方向に挟むように締結可能になっている。ここで、軸線方向は、内筒１０の回動中心となる軸線に沿った方向に相当する。 The outer cylinder 20 is fixed to a door or a door frame. The outer cylinder 20 has an outer casing and a male threaded portion on the outer periphery, and a door or a door frame (not shown in FIGS. 1, 2, and 4) by the outer casing and a nut 21 (not shown in FIGS. 1, 2, and 4). (Both not shown) can be fastened so as to sandwich the wall in the axial direction. Here, the axial direction corresponds to a direction along the axial line serving as the rotation center of the inner cylinder 10.

なお、図示例は、右開きの扉（図示省略）の前面にシリンダ錠を配置する場合を想定している。この場合、通常、扉を扉枠に対して後方から前方に向かって押してパッキン（図示省略）を圧縮する。したがって、軸線方向を前後方向とし、密閉操作体３０が扉を密閉側に押す方向を後方から前方に向かう一方向とする配置でシリンダ錠が使用される。そして、鍵穴部１１に挿入された鍵５０を回して解錠する際の鍵５０の回転方向は、右開き扉で一般的な右回転（図１中の矢線Ａ方向の回転）とし、施錠する際の鍵５０の回転方向は、左回転（図１中の矢線Ｂ方向の回転）を想定している。 In addition, the example of illustration assumes the case where a cylinder lock is arrange | positioned in front of the door (illustration omitted) of right opening. In this case, usually, the door is pushed from the rear toward the front with respect to the door frame to compress the packing (not shown). Therefore, the cylinder lock is used in an arrangement in which the axial direction is the front-rear direction, and the direction in which the sealing operation body 30 pushes the door toward the sealing side is one direction from the rear to the front. The rotation direction of the key 50 when the key 50 inserted in the keyhole portion 11 is unlocked and rotated is a general right rotation (rotation in the direction of arrow A in FIG. 1) at the right opening door. The rotation direction of the key 50 at the time is assumed to be counterclockwise (rotation in the direction of arrow B in FIG. 1).

密閉操作体３０は、図１〜図５に示すように、内筒１０に嵌め合う回動軸３１と、扉枠又は扉にデッドボルト兼プッシャーとして接触する止め金３２と、回動軸３１のねじ部に螺合する締結部材３３と、止め金３２と締結部材３３間に介在するワッシャ３４と、筒径方向に突き出た係止軸３５と、回動軸３１に設けられた螺旋様のスリット部３６とを有し、内筒１０及び外筒２０に対する相対運動を一体的に行い、止め金３２のところで扉枠に係合して扉の開放を阻止すると共に扉を密閉させるプッシャーとなる。ここで、筒径方向は、軸線方向に直角な方向に相当する。 As shown in FIGS. 1 to 5, the sealing operation body 30 includes a rotation shaft 31 that fits in the inner cylinder 10, a stopper 32 that contacts the door frame or door as a dead bolt and pusher, and a rotation shaft 31. A fastening member 33 screwed into the threaded portion, a washer 34 interposed between the clasp 32 and the fastening member 33, a locking shaft 35 protruding in the cylinder radial direction, and a spiral-like slit provided on the rotating shaft 31 And a portion 36, which integrally performs relative movement with respect to the inner cylinder 10 and the outer cylinder 20, and engages with the door frame at the stopper 32 to prevent the door from being opened and to close the door. Here, the cylinder radial direction corresponds to a direction perpendicular to the axial direction.

密閉操作体３０は、軸線回りに所定方向を向いた第一姿勢（図１（ａ）、図２、図３参照）及び当該第一姿勢と所定角度異なる方向に向いた第二姿勢（図１（ｃ）、図４、図５参照）間を回動可能かつ当該第一姿勢の状態で軸線方向に往復移動可能に配置されている。図示例では、第一姿勢を施錠姿勢とし、第二姿勢を解錠姿勢としている。また、所定角度は、軸線回りに９０°としている。密閉操作体３０に許された往復移動のストロークＬを図５中に示す。 The sealing operation body 30 has a first posture (see FIGS. 1A, 2 and 3) facing a predetermined direction around the axis and a second posture (FIG. 1) facing a direction different from the first posture by a predetermined angle. (C), FIG. 4 and FIG. 5) are arranged so as to be rotatable and reciprocally movable in the axial direction in the state of the first posture. In the illustrated example, the first posture is a locked posture and the second posture is an unlocked posture. The predetermined angle is 90 ° around the axis. FIG. 5 shows the reciprocating stroke L allowed for the sealing operation body 30.

図２、図４に示すように、回動軸３１は、内筒１０の外周に嵌合されている。また、回動軸３１は、外筒２０の内周にも嵌合されている。これら嵌合は、回動軸３１を内筒１０及び外筒２０と所定の同軸度に保つ芯出しを行うと共に、回動軸３１を軸線方向に案内するためのものである。 As shown in FIGS. 2 and 4, the rotation shaft 31 is fitted on the outer periphery of the inner cylinder 10. The rotation shaft 31 is also fitted to the inner periphery of the outer cylinder 20. These fittings are for centering the rotating shaft 31 at a predetermined degree of coaxiality with the inner cylinder 10 and the outer cylinder 20 and for guiding the rotating shaft 31 in the axial direction.

止め金３２は、密閉操作体３０に対する向きを軸線回りに調整可能にするため、回動軸３１と別体に設けられている。止め金３２の向き調整が不要な場合、回動軸３１と一体に形成して部品数を削減してもよい。 The stopper 32 is provided separately from the rotating shaft 31 so that the direction relative to the sealing operation body 30 can be adjusted around the axis. When the direction adjustment of the clasp 32 is unnecessary, it may be formed integrally with the rotating shaft 31 to reduce the number of parts.

ワッシャ３４は、締結部材３３を緩み止めするためのものである。なお、締結部材３３を雌ねじ部材とし、回動軸３１を雄ねじ部材としたが、雄ねじと雌ねじの関係を逆にしてもよい。 The washer 34 is for preventing the fastening member 33 from loosening. Although the fastening member 33 is a female screw member and the rotation shaft 31 is a male screw member, the relationship between the male screw and the female screw may be reversed.

係止軸３５は、回動軸３１のピン孔に圧入されたピンからなり、そのピンの両端部を回動軸３１の直径方向に突出させることで設けられている。なお、図５に示すように、ストロークＬの一端部（図中右端部）で第二姿勢にある密閉操作体３０の係止軸３５と、外筒２０の図中右側の筒先縁との間には、軸線方向に僅かな隙間が設定されている。 The locking shaft 35 is a pin press-fitted into the pin hole of the rotating shaft 31, and is provided by projecting both ends of the pin in the diameter direction of the rotating shaft 31. As shown in FIG. 5, between the locking shaft 35 of the sealing operation body 30 in the second posture at one end portion (right end portion in the figure) of the stroke L and the cylinder tip edge on the right side of the outer cylinder 20 in the drawing. A slight gap is set in the axial direction.

図１、図２、図４に示すスリット部３６は、回動軸３１に軸線回りの方向に一対で設けられている。各スリット部３６は、軸線を中心とするつる巻き線に基づいた螺旋様で軸線回りに９０°の範囲に及んでいる。 A pair of slit portions 36 shown in FIGS. 1, 2, and 4 is provided on the rotation shaft 31 in the direction around the axis. Each slit portion 36 has a spiral shape based on a helical winding centered on the axis and extends in a range of 90 ° around the axis.

図５に示すように、外筒２０は、軸線方向に延びた空間を形成する対向面をもち、かつ当該対向面の一方を他方よりも延長した形状の係止部２２を有する。その空間の幅は、係止軸３５の直径よりも僅かに大きく設定されている。その対向面の一方の延長分は、ストロークＬの一端部で係止軸３５と軸線回りに対向可能な長さとなっている。外筒２０には、一対の係止部２２が軸線回りの１８０°間隔で形成されている。一対の係止部２２と、係止軸３５とが、図１、図５に示すように、ストロークＬの一端部（図中右端部）において第一姿勢の密閉操作体３０の一方向回転（矢線Ｂ方向回転）を阻止し、密閉操作体３０の第一姿勢及び第二姿勢間の回動を許すが、ストロークＬの一端部（図中右端部）から軸線方向一方側（図中左側）へ移動したストローク領域では第一姿勢の密閉操作体３０の回動を阻止するような回り止め構造として機能する。 As shown in FIG. 5, the outer cylinder 20 includes a locking portion 22 having a facing surface that forms a space extending in the axial direction, and one of the facing surfaces is extended from the other. The width of the space is set slightly larger than the diameter of the locking shaft 35. One extension of the facing surface has a length that can be opposed to the locking shaft 35 around the axis at one end of the stroke L. A pair of locking portions 22 are formed on the outer cylinder 20 at intervals of 180 ° around the axis. As shown in FIGS. 1 and 5, the pair of locking portions 22 and the locking shaft 35 rotate in one direction at one end of the stroke L (right end portion in the drawing) in the first posture (see FIG. 1). Although the rotation of the sealing operation body 30 is prevented between the first posture and the second posture, the one end of the stroke L (right end in the drawing) is one side in the axial direction (left side in the drawing). In the stroke region moved to (), it functions as a detent structure that prevents the rotation of the sealing operation body 30 in the first posture.

なお、係止部２２は、外筒２０の外鍔と反対側の筒先縁の一部として設けられている例を示したが、外筒２０の筒先縁以外の筒壁にスリット状に設けてもよい。 In addition, although the latching | locking part 22 showed the example provided as a part of cylinder tip edge on the opposite side to the outer casing of the outer cylinder 20, it provided in the cylinder wall other than the cylinder tip edge of the outer cylinder 20 in slit shape. Also good.

図１（ａ）、（ｂ）に示すように、内筒１０は、内筒１０の回転トルクを密閉操作体３０の一対のスリット部３６に伝達する伝達軸１２を有する。伝達軸１２は、スリット部３６から内筒１０のピン孔に圧入されたピンからなり、そのピンの両端部を内筒１０の直径方向に突出させてスリット部３６に配置することで設けられている。なお、伝達軸１２は、内筒１０に一体に形成してもよい。 As shown in FIGS. 1A and 1B, the inner cylinder 10 has a transmission shaft 12 that transmits the rotational torque of the inner cylinder 10 to a pair of slit portions 36 of the sealing operation body 30. The transmission shaft 12 is composed of a pin press-fitted into the pin hole of the inner cylinder 10 from the slit portion 36, and is provided by projecting both ends of the pin in the diameter direction of the inner cylinder 10 and disposing it in the slit portion 36. Yes. The transmission shaft 12 may be formed integrally with the inner cylinder 10.

係止部２２と係止軸３５とが第一姿勢の密閉操作体３０の一方向回転（矢線Ｂ方向回転）を阻止しているとき、一対のスリット部３６の螺旋様のカム面と、ここに回転トルクを伝達する伝達軸１２とが、内筒１０の一方向回転（矢線Ｂ方向回転）を軸線方向一方側（図中左側）への移動に変換する。係止部２２と係止軸３５とが第一姿勢の密閉操作体３０の他方向回転（矢線Ａ方向回転）を阻止しているとき、一対のスリット部３６の螺旋様のカム面と、ここに回転トルクを伝達する伝達軸１２とが、内筒１０の他方向回転（矢線Ａ方向回転）を軸線方向他方側（図中右側）への移動に変換する。 When the locking portion 22 and the locking shaft 35 prevent one-direction rotation (rotation in the direction of arrow B) of the sealing operation body 30 in the first posture, the spiral cam surfaces of the pair of slit portions 36; The transmission shaft 12 for transmitting the rotational torque here converts the one-way rotation (in the arrow B direction) of the inner cylinder 10 into movement toward one side in the axial direction (left side in the figure). When the locking portion 22 and the locking shaft 35 prevent the other direction rotation (rotation in the direction of arrow A) of the sealing operation body 30 in the first posture, the spiral cam surfaces of the pair of slit portions 36; Here, the transmission shaft 12 that transmits the rotational torque converts the other-direction rotation (rotation in the direction of arrow A) of the inner cylinder 10 into movement toward the other side in the axial direction (right side in the figure).

また、図１（ｂ）、図５に示すように、一対のスリット部３６の内筒１０側の閉塞面と、ここに回転トルクを伝達する伝達軸１２とは、ストロークＬの一端部（図中右端部）において内筒１０の他方向回転（矢線Ａ方向回転）に係合し、内筒１０の他方向回転（矢線Ａ方向回転）と、第一姿勢の密閉操作体３０の第二姿勢への他方向回転（矢線Ａ方向回転）とを一体的に連動させる。なお、図１（ｃ）、図５に示すように、ストロークＬの一端部（図中右端部）において第二姿勢の密閉操作体３０の係止軸３５と外筒２０の筒先縁段差とが密閉操作体３０の他方向回転（矢線Ａ方向回転）を阻止するようになっている。 Further, as shown in FIGS. 1B and 5, the closed surface on the inner cylinder 10 side of the pair of slit portions 36 and the transmission shaft 12 that transmits the rotational torque to one end portion of the stroke L (see FIG. 1). The inner cylinder 10 is engaged in the other direction rotation (arrow A direction rotation) of the inner cylinder 10 at the middle right end), and the inner cylinder 10 is rotated in the other direction (arrow line A direction rotation). The other direction rotation (arrow line A direction rotation) to two postures is integrally linked. In addition, as shown in FIG.1 (c), FIG. 5, the locking shaft 35 of the sealing operation body 30 of a 2nd attitude | position and the cylinder leading edge level | step difference of the outer cylinder 20 in the one end part (right end part in a figure) of the stroke L are. The other direction rotation (arrow A direction rotation) of the sealing operation body 30 is prevented.

また、図１（ｃ）、図５に示すように、ストロークＬの一端部（図中右端部）において密閉操作体３０が第二姿勢になっているときに内筒１０が一方向回転（矢線Ｂ方向回転）する場合、一対のスリット部３６の螺旋様のカム面と、ここに回転トルクを伝達する伝達軸１２とが、内筒１０の一方向回転（矢線Ｂ方向回転）を軸線方向一方側（図中左側）への移動に変換するが、係止軸３５が、直ちに外筒２０の筒先縁に引っ掛るので、密閉操作体３０が、実質的に軸線方向一方側（図中左側）へ移動できない。以後、一対のスリット部３６の螺旋様のカム面と、ここに回転トルクを伝達する伝達軸１２とが、内筒１０の他方向回転（矢線Ａ方向回転）と、密閉操作体３０の第一姿勢への他方向回転（矢線Ａ方向回転）とを一体的に連動させる。 Further, as shown in FIGS. 1C and 5, the inner cylinder 10 is rotated in one direction (arrow) when the sealing operation body 30 is in the second posture at one end of the stroke L (right end in the drawing). When rotating in the direction of line B), the spiral cam surfaces of the pair of slit portions 36 and the transmission shaft 12 for transmitting the rotational torque to the axis of the inner cylinder 10 are rotated in one direction (arrow B direction). However, since the locking shaft 35 is immediately hooked on the cylinder leading edge of the outer cylinder 20, the sealing operation body 30 is substantially moved to one side in the axial direction (in the figure). Cannot move to the left). Thereafter, the spiral cam surfaces of the pair of slit portions 36 and the transmission shaft 12 that transmits the rotational torque thereto are rotated in the other direction of the inner cylinder 10 (rotation in the direction of arrow A) and The other direction rotation (rotation in the direction of arrow A) to one posture is integrally linked.

このように、このシリンダ錠は、第一姿勢の密閉操作体３０の一方向回転（矢線Ｂ方向回転）を阻止すると共に内筒１０の一方向回転（矢線Ｂ方向回転）を密閉操作体３０の軸線方向一方側（図中左側）への移動に変換し（図１（ｂ）の状態から（ａ）の状態への遷移）、軸線方向一方側（図中左側）へ移動した密閉操作体３０の他方向回転（矢線Ａ方向回転）を阻止すると共に内筒１０の他方向回転（矢線Ａ方向回転）を密閉操作体３０の軸線方向他方側（図中右側）への移動に変換し（図１（ａ）の状態から（ｂ）の状態への遷移）、他方側へ移動し切った密閉操作体３０の第一姿勢及び前記第二姿勢間での回動と内筒１０の回動を一体的に連動させる（図１（ｂ）の状態から（ｃ）の状態への遷移とその逆の遷移）運動変換機構を備える。なお、スリット部に相当の部位を内筒に設け、伝達軸に相当の部位を密閉操作体に設けてもよい。 Thus, this cylinder lock prevents the unidirectional rotation (arrow B direction rotation) of the sealing operation body 30 in the first posture and the unidirectional rotation (arrow B direction rotation) of the inner cylinder 10 from the sealing operation body. 30 is converted into movement in one axial direction (left side in the figure) (transition from the state in FIG. 1B to the state in FIG. 1A) and moved to one axial direction (left side in the figure). The other direction rotation (arrow A direction rotation) of the body 30 is prevented and the other direction rotation (arrow A direction rotation) of the inner cylinder 10 is moved to the other side (right side in the figure) of the sealing operation body 30 in the axial direction. Conversion (transition from the state shown in FIG. 1A to the state shown in FIG. 1B), the rotation of the sealing operation body 30 moved to the other side between the first posture and the second posture, and the inner cylinder 10 A movement conversion mechanism that integrally interlocks the rotation of the movement (transition from the state of FIG. 1 (b) to the state of (c) and vice versa). . Note that a portion corresponding to the slit portion may be provided in the inner cylinder, and a portion corresponding to the transmission shaft may be provided in the sealing operation body.

このシリンダ錠は、内筒１０と、密閉操作体３０との間に介在するリターンスプリング６０を備える。リターンスプリング６０は、第二姿勢の密閉操作体３０をストロークＬの一端部（図中右端部）に確実に維持するためのものである。 The cylinder lock includes a return spring 60 interposed between the inner cylinder 10 and the sealing operation body 30. The return spring 60 is for reliably maintaining the sealing operation body 30 in the second posture at one end portion (right end portion in the drawing) of the stroke L.

図１、図２、図４に示すように、内筒１０は、内筒１０を外筒２０に対して回り止めするための複数の第一タンブラ４１，４２と、鍵穴部１１に挿入された鍵５０の引き抜きを規制するための第二タンブラ４３と、内筒１０と外筒２０の相対的な位置を軸線方向に固定するためのストッパタンブラ４４とを対応のタンブラ孔に保持可能なものとされている。 As shown in FIGS. 1, 2, and 4, the inner cylinder 10 is inserted into a plurality of first tumblers 41 and 42 for locking the inner cylinder 10 with respect to the outer cylinder 20 and the keyhole portion 11. A second tumbler 43 for restricting the withdrawal of the key 50 and a stopper tumbler 44 for fixing the relative positions of the inner cylinder 10 and the outer cylinder 20 in the axial direction can be held in the corresponding tumbler holes. Has been.

図６に示すように、第一タンブラ４１，４２、第二タンブラ４３は、それぞれ対応の押しばね４１ａ，４２ａ，４３ａと共に内筒１０のタンブラ孔に挿入される。押しばね４１ａ，４２ａ，４３ａは、共通の筒径方向の一方向に向けて配置されている。第一タンブラ４１，４２と第二タンブラ４３は、対応の押しばね４１ａ，４２ａ，４３ａにより、外筒２０側へ向けて共通の一方向に支持、付勢される。なお、図１〜図６では、内筒１０が第一タンブラ４１，４２、第二タンブラ４３及びストッパタンブラ４４を保持している仕様のシリンダ錠を示している。 As shown in FIG. 6, the 1st tumblers 41 and 42 and the 2nd tumbler 43 are each inserted in the tumbler hole of the inner cylinder 10 with corresponding press spring 41a, 42a, 43a. The push springs 41a, 42a, 43a are arranged in one direction in the common cylinder radial direction. The first tumblers 41 and 42 and the second tumbler 43 are supported and urged in a common direction toward the outer cylinder 20 by corresponding pressing springs 41a, 42a and 43a. 1 to 6 show a cylinder lock having a specification in which the inner cylinder 10 holds the first tumblers 41, 42, the second tumbler 43, and the stopper tumbler 44.

図２、図４に示すように、外筒２０の内面には、軸線方向に延びた第一溝２３と、第一溝２３と筒径方向に対向するように軸線方向に延びた第二溝２４と、第一溝２３を閉塞する筒肉部２５とが形成されている。 As shown in FIGS. 2 and 4, on the inner surface of the outer cylinder 20, a first groove 23 extending in the axial direction and a second groove extending in the axial direction so as to face the first groove 23 in the cylinder radial direction are provided. 24 and the cylindrical part 25 which obstruct | occludes the 1st groove | channel 23 are formed.

第一溝２３は、軸線方向に前方筒先側（図中左側）へ開放し、かつ後方筒奥側（図中右側）で閉塞している。第二溝２４は、軸線方向に前方筒先側（図中左側）へ開放し、かつ第一溝２３よりも後方筒奥側（図中右側）で閉塞している。 The first groove 23 opens in the axial direction to the front cylinder tip side (left side in the figure) and closes on the rear cylinder back side (right side in the figure). The second groove 24 opens in the axial direction toward the front cylinder tip side (left side in the figure) and is closed on the rear cylinder back side (right side in the figure) with respect to the first groove 23.

外筒２０の内面のうち、第一溝２３と第二溝２４間を軸線回りの円周方向に亘る部分は、外筒２０の内径面と同径の円弧面状となっている。 A portion of the inner surface of the outer cylinder 20 that extends between the first groove 23 and the second groove 24 in the circumferential direction around the axis is an arc surface having the same diameter as the inner diameter surface of the outer cylinder 20.

筒肉部２５は、第二溝２４と筒径方向に対向する位置で第一溝２３を閉塞し、かつ外筒２０の内径面と同径で第二溝２４の両溝側面まで連なるように形成されている。 The cylindrical part 25 closes the first groove 23 at a position facing the second groove 24 in the cylinder radial direction, and is continuous to both groove side surfaces of the second groove 24 with the same diameter as the inner diameter surface of the outer cylinder 20. Is formed.

外筒２０は、金型鋳造により、一体に成型されている。 The outer cylinder 20 is integrally molded by die casting.

今、図１（ａ）、図２に示すように軸線方向一方側へ移動し切った密閉操作体３０となったときの内筒回転位置（施錠密閉状態に対応の内筒回転位置）、及び図１（ｃ）、図４に示すように第二姿勢の密閉操作体３０となったときの内筒回転位置（解錠非密閉状態に対応の内筒回転位置）の二位置を考える。 Now, as shown in FIG. 1 (a) and FIG. 2, the inner cylinder rotation position (inner cylinder rotation position corresponding to the locked and sealed state) when the sealing operation body 30 is moved to one side in the axial direction, and Consider two positions of the inner cylinder rotation position (inner cylinder rotation position corresponding to the unlocked non-sealed state) when the sealing operation body 30 is in the second posture as shown in FIGS.

これら二位置のいずれでも、鍵５０が鍵穴部１１に未挿入の状態では、前述の支持、付勢を受ける第二タンブラ４３は、図２、図４中に実線で描くように、筒肉部２５の方へ向けて鍵穴部１１に突出した状態にある。 In any of these two positions, when the key 50 is not inserted into the keyhole portion 11, the second tumbler 43 that receives the above-described support and biasing is a cylindrical portion as depicted by a solid line in FIGS. It is in a state of projecting into the keyhole 11 toward 25.

第二タンブラ４３は、その二位置の一方である図２の内筒回転位置でのみ、鍵穴部１１に対して挿抜される鍵５０の図中下側にある最も先端寄りの鍵山５１の斜面と接触し、その鍵山５１との接触によって、図中二点鎖線で描くように第二溝２４に退避させられ、鍵山５１の通過を許す。そして、前述の支持、付勢を受ける第二タンブラ４３は、鍵山５１の通過後、図中実線で描く位置に復帰させられる。 The second tumbler 43 has a slope of the key mountain 51 closest to the tip on the lower side in the figure of the key 50 inserted into and removed from the keyhole portion 11 only at the inner cylinder rotation position of FIG. 2 which is one of the two positions. Due to contact with the key pile 51, the key pile 51 is retracted into the second groove 24 as depicted by a two-dot chain line in the figure, and the key pile 51 is allowed to pass. And the 2nd tumbler 43 which receives the above-mentioned support and biasing is returned to the position drawn by the solid line in the figure after passing the key pile 51.

第二タンブラ４３は、その二位置の他方である図４の内筒回転位置でのみ、鍵穴部１１に対して挿抜される鍵５０の図中上側にある最も先端寄りの鍵山５１の斜面と接触し、その鍵山５１との接触によって筒肉部２５側へ押されるが、筒肉部２５と筒径方向に突き当って退避することができない。このため、鍵山５１が第二タンブラ４３に引っ掛かって、それ以上、鍵５０の挿抜を行うことができない。したがって、第二タンブラ４３を有する仕様のシリンダ錠では、施錠密閉状態に対応の図２に示す内筒回転位置でのみ、鍵５０の挿抜が許される。 The second tumbler 43 is in contact with the slope of the key mountain 51 closest to the tip on the upper side of the key 50 in the figure of the key 50 to be inserted into and removed from the keyhole portion 11 only at the inner cylinder rotation position of FIG. However, although it is pushed toward the cylindrical portion 25 by the contact with the key pile 51, it cannot hit the cylindrical portion 25 in the cylindrical radial direction and cannot be retracted. For this reason, the key pile 51 is caught by the second tumbler 43, and the key 50 cannot be inserted or removed any further. Therefore, in the cylinder lock of the specification having the second tumbler 43, the insertion and removal of the key 50 is permitted only at the inner cylinder rotation position shown in FIG. 2 corresponding to the locked and sealed state.

一方、鍵５０が鍵穴部１１に未挿入の場合、各第一タンブラ４１，４２は、図２に示す内筒回転位置（施錠密閉状態に対応の内筒回転位置）、及び図４に示す内筒回転位置（解錠非密閉状態に対応の内筒回転位置）の二位置のいずれでも、図中に二点鎖線で描くように、前述の支持、付勢を受ける方の外筒２０の第一溝２３又は第二溝２４内に入り込んで外筒２０と内筒１０に跨った状態にある。このため、内筒１０と外筒２０間の相対的な回動が阻止される。 On the other hand, when the key 50 is not inserted into the keyhole portion 11, each of the first tumblers 41 and 42 has the inner cylinder rotation position shown in FIG. 2 (the inner cylinder rotation position corresponding to the locked sealed state) and the inner cylinder shown in FIG. As shown in the two-dot chain line in the figure, the outer cylinder 20 of the one receiving the above-mentioned support and biasing is in any of the two positions of the cylinder rotation position (the inner cylinder rotation position corresponding to the unlocked non-sealed state). It is in a state where it enters the one groove 23 or the second groove 24 and straddles the outer cylinder 20 and the inner cylinder 10. For this reason, relative rotation between the inner cylinder 10 and the outer cylinder 20 is prevented.

また、各第一タンブラ４１，４２は、その二位置のいずれでも、図中に実線で描くように、鍵穴部１１に挿入された鍵５０との接触によって第一溝２３又は第二溝２４から内筒１０内に退避させられる。このため、鍵５０を施錠又は解錠に対応の方へ回すことによって内筒１０を外筒２０に対して対応の方向に回転させることができる。 Further, each of the first tumblers 41 and 42 is removed from the first groove 23 or the second groove 24 by contact with the key 50 inserted into the keyhole portion 11 as depicted by a solid line in any of the two positions. It is retracted into the inner cylinder 10. For this reason, the inner cylinder 10 can be rotated in a corresponding direction with respect to the outer cylinder 20 by turning the key 50 in a direction corresponding to locking or unlocking.

今、第二タンブラ４３を有する図１〜図６の仕様のシリンダ錠に比して、第二タンブラ４３の無い点でのみ異なる仕様の図７、図８に示すシリンダ錠を考える。図７は、図２に示す内筒回転位置（施錠密閉状態に対応の内筒回転位置）に相当の状態を示し、図８は、図４に示す内筒回転位置（解錠非密閉状態に対応の内筒回転位置）に相当の状態を示す。 Now, consider the cylinder locks shown in FIGS. 7 and 8 having different specifications only in the absence of the second tumbler 43 as compared with the cylinder locks having the second tumbler 43 shown in FIGS. FIG. 7 shows a state corresponding to the inner cylinder rotation position shown in FIG. 2 (inner cylinder rotation position corresponding to the locked / sealed state), and FIG. 8 shows the inner cylinder rotation position shown in FIG. The corresponding state is shown in the corresponding inner cylinder rotation position.

図７、図８に示す仕様のシリンダ錠は、図４のように鍵５０の挿抜を規制する第二タンブラ４３を具備しないため、図７に示す内筒回転位置と図８に示す内筒回転位置のいずれでも、鍵５０を鍵穴部１１に挿抜可能な一方、各第一タンブラ４１，４２と鍵５０の関係は図２、図４に示す仕様のシリンダ錠と同様のものである。 Since the cylinder lock having the specifications shown in FIGS. 7 and 8 does not include the second tumbler 43 that restricts the insertion and removal of the key 50 as shown in FIG. 4, the inner cylinder rotation position shown in FIG. 7 and the inner cylinder rotation shown in FIG. While the key 50 can be inserted into and removed from the keyhole portion 11 at any position, the relationship between the first tumblers 41 and 42 and the key 50 is the same as that of the cylinder lock having the specifications shown in FIGS.

第一実施形態に係るシリンダ錠は、上述のようなものであり、密閉操作体３０がストロークＬの一端部（図中右端部）で第二姿勢（解錠姿勢）にあるとき（図１（ｃ）、図４、図５参照）、鍵穴部１１に挿入された鍵５０が矢線Ｂ方向に回されると、前述の運動変換機構が、内筒１０の矢線Ｂ方向の回転を密閉操作体３０の矢線Ｂ方向の回転に変換する。そして、内筒１０の矢線Ｂ方向の回転角度が９０°のとき（図１（ｂ）、図２、図３参照）、密閉操作体３０は、第一姿勢（施錠姿勢）まで回転させられた状態になる。この状態から鍵５０が更に矢線Ｂ方向に回されると、前述の運動変換機構が、密閉操作体３０を第一姿勢に回り止めし、内筒１０の矢線Ｂ方向の回転を密閉操作体３０の軸方向一方側（図中左側）への移動に変換する。そして、内筒１０の矢線Ｂ方向の更なる回転角度がスリット部３６の角度範囲に相当の９０°になったとき（通算１８０°になったとき）、密閉操作体３０は、第一姿勢のままで軸方向一方側（図中左側）へ移動し切ってストロークＬの他端部（図中左端部）に至る（図１（ｂ）、（ａ）参照。）。すなわち、密閉操作体３０が施錠密閉状態に対応の状態となる。 The cylinder lock according to the first embodiment is as described above, and when the sealing operation body 30 is in the second posture (unlocked posture) at one end portion (right end portion in the drawing) of the stroke L (FIG. 1 ( c), see FIGS. 4 and 5), when the key 50 inserted in the keyhole portion 11 is rotated in the direction of the arrow B, the motion conversion mechanism described above seals the rotation of the inner cylinder 10 in the direction of the arrow B. The operation body 30 is converted into rotation in the direction of arrow B. When the rotation angle of the inner cylinder 10 in the direction of the arrow B is 90 ° (see FIG. 1B, FIG. 2 and FIG. 3), the sealing operation body 30 is rotated to the first posture (locking posture). It becomes a state. When the key 50 is further rotated in the direction of the arrow B from this state, the above-described motion conversion mechanism stops the sealing operation body 30 from rotating to the first posture, and the rotation of the inner cylinder 10 in the direction of the arrow B is closed. The movement is converted to one side (left side in the figure) of the body 30 in the axial direction. When the further rotation angle of the inner cylinder 10 in the direction of the arrow B is 90 ° corresponding to the angle range of the slit portion 36 (when the total angle is 180 °), the sealing operation body 30 is in the first posture. As it is, it moves to the one side in the axial direction (left side in the figure) and reaches the other end part (left end part in the figure) of the stroke L (see FIGS. 1B and 1A). That is, the sealing operation body 30 is in a state corresponding to the locked and sealed state.

一方、密閉操作体３０がストロークＬの他端部（図中左端部）で第一姿勢（施錠姿勢）にあるとき（図１（ａ）、図２、図３参照。）、鍵５０が矢線Ａ方向に回されると、前述の運動変換機構が、密閉操作体３０を第一姿勢に回り止めし、内筒１０の矢線Ａ方向の回転を密閉操作体３０の軸方向他方側（図中右側）への移動に変換する。そして、内筒１０の矢線Ａ方向の回転角度がスリット部３６の角度範囲に相当の９０°になったとき（図１（ｂ）参照。）、密閉操作体３０は、第一姿勢のままで軸方向他方側（図中右側）へ移動し切ってストロークＬの一端部（図中右端部）に至る。すなわち、密閉操作体３０が、非密閉状態に対応の状態となる。この状態から鍵５０が更に矢線Ａ方向に回されると、前述の運動変換機構が、内筒１０の矢線Ａ方向の回転を密閉操作体３０の矢線Ａ方向の回転に変換する。そして、内筒１０の矢線Ａ方向の更なる回転角度がスリット部３６の角度範囲に相当の９０°になったとき（通算１８０°になったとき）、密閉操作体３０は、第二姿勢（施錠姿勢）まで回転させられた状態になる（図１（ｃ）、図４、図５参照。）。すなわち、第一実施形態に係るシリンダ錠は、密閉機能付きのものとなる。 On the other hand, when the sealing operation body 30 is in the first posture (locking posture) at the other end portion (the left end portion in the figure) of the stroke L (see FIGS. 1A, 2 and 3), the key 50 is an arrow. When rotated in the direction of the line A, the motion conversion mechanism described above stops the sealing operation body 30 from rotating in the first posture, and rotates the inner cylinder 10 in the direction of the arrow A in the other axial direction of the sealing operation body 30 ( Convert to movement to the right in the figure. When the rotation angle of the inner cylinder 10 in the direction of the arrow A reaches 90 ° corresponding to the angle range of the slit portion 36 (see FIG. 1B), the sealing operation body 30 remains in the first posture. Thus, it moves to the other side in the axial direction (right side in the figure) and reaches one end part (right end part in the figure) of the stroke L. That is, the sealing operation body 30 is in a state corresponding to the non-sealing state. When the key 50 is further rotated in the arrow A direction from this state, the motion conversion mechanism described above converts the rotation of the inner cylinder 10 in the arrow A direction into the rotation of the sealing operation body 30 in the arrow A direction. When the further rotation angle of the inner cylinder 10 in the direction of the arrow A becomes 90 ° corresponding to the angle range of the slit portion 36 (when the total angle becomes 180 °), the sealing operation body 30 is in the second posture. It will be in the state rotated to (locking attitude | position) (refer FIG.1 (c), FIG.4, FIG.5). That is, the cylinder lock according to the first embodiment has a sealing function.

また、軸方向一方側（図中左側）へ移動し切った密閉操作体３０となったときの図２、図７の内筒回転位置及び第二姿勢の密閉操作体３０となったときの図４、図８の内筒回転位置の二位置のいずれでも、鍵穴部１１に鍵５０が未挿入の場合、第一タンブラ４１，４２が、外筒２０の内面で筒径方向に対向する第一溝２３又は第二溝２４に進出して内筒１０を回り止めし、鍵５０の挿入により、内筒１０内に退避させられる。したがって、第一実施形態に係るシリンダ錠は、図１〜図６に示すように第二タンブラ４３の有無を問わずに施錠機能を実現することができる。 Moreover, the figure when it becomes the sealing operation body 30 of the inner cylinder rotation position of FIG. 2, FIG. 7, and a 2nd attitude | position when it becomes the sealing operation body 30 which moved to the axial direction one side (left side in the figure) completely. 4, when the key 50 is not inserted into the keyhole portion 11 at any of the two positions of the inner cylinder rotation position in FIG. 8, the first tumblers 41, 42 are opposed to each other in the cylinder radial direction on the inner surface of the outer cylinder 20. The inner cylinder 10 is advanced by moving into the groove 23 or the second groove 24, and is retracted into the inner cylinder 10 by inserting the key 50. Therefore, the cylinder lock which concerns on 1st embodiment can implement | achieve a locking function irrespective of the presence or absence of the 2nd tumbler 43, as shown in FIGS.

また、第一実施形態に係るシリンダ錠は、内筒１０が第二タンブラ４３を保持可能なものとされているので、第二タンブラ４３の有無だけを異ならせることにより、図１〜図６に示す仕様のシリンダ錠と、図７、図８に示す仕様のシリンダ錠とに作り分けることが可能である。 In the cylinder lock according to the first embodiment, since the inner cylinder 10 can hold the second tumbler 43, only the presence or absence of the second tumbler 43 is changed, so that FIGS. It is possible to make a cylinder lock having the specifications shown in FIG. 7 and a cylinder lock having the specifications shown in FIGS.

ここで、図１〜図６に示す仕様のシリンダ錠に組み立てた場合、前述の施錠密閉状態に対応する一方の内筒回転位置（図２参照）では、第二タンブラ４３が、鍵穴部１１から引き抜かれる鍵５０との接触によって第二溝２４に退避させられるので、鍵５０を引き抜くことが可能である。これと反対に、前述の解錠非密閉状態に対応する他方の内筒回転位置（図４参照）では、第二タンブラ４３が、鍵穴部１１から引き抜かれる鍵５０と接触しても、筒肉部２５と突き当って退避することができず、鍵５０との接触及び筒肉部２５との突き当りによって鍵５０の引き抜きを阻止する。したがって、施錠密閉状態のみで鍵５０の引き抜きを許す管理に対応可能な仕様のシリンダ錠となる。 Here, when assembled into a cylinder lock having the specifications shown in FIGS. 1 to 6, the second tumbler 43 is moved from the keyhole portion 11 at one inner cylinder rotation position (see FIG. 2) corresponding to the above-described locked sealing state. The key 50 can be pulled out because it is retracted to the second groove 24 by contact with the key 50 to be pulled out. On the other hand, even if the second tumbler 43 comes into contact with the key 50 pulled out from the keyhole portion 11 at the other inner cylinder rotation position (see FIG. 4) corresponding to the above-described unlocked non-sealed state, The key 50 cannot be withdrawn and cannot be retracted, and the key 50 is prevented from being pulled out by contact with the key 50 and abutting against the cylindrical part 25. Therefore, the cylinder lock is of a specification that can be used for management that allows the key 50 to be pulled out only in a locked and sealed state.

逆に、図７、図８に示す仕様のシリンダ錠に組み立てた場合、前述の施錠密閉状態（図７参照）と解錠非密閉状態（図８参照）の両方で鍵５０の引き抜きを許す管理に対応可能な仕様のシリンダ錠となる。 On the other hand, when the cylinder lock having the specifications shown in FIGS. 7 and 8 is assembled, the key 50 can be pulled out in both the above-described locked and sealed state (see FIG. 7) and the unlocked and unsealed state (see FIG. 8). A cylinder lock with specifications that can handle

第一溝２３、第二溝２４、筒肉部２５を外筒２０の内面に形成しているので、前述の二仕様に応じて外筒２０を作り分けることが不要である。また、外筒２０の筒先側に向かって開放した第一溝２３及び第二溝２４や、筒奥側で第一溝２３を閉塞する筒肉部２５は、外筒２０を成型する際にアンダーカットとならず、外筒２０の製造が複雑、困難化することもない。 Since the 1st groove | channel 23, the 2nd groove | channel 24, and the cylindrical part 25 are formed in the inner surface of the outer cylinder 20, it is unnecessary to make the outer cylinder 20 according to the above-mentioned two specifications. In addition, the first groove 23 and the second groove 24 opened toward the cylinder tip side of the outer cylinder 20 and the cylindrical meat portion 25 that closes the first groove 23 on the inner cylinder side are under-formed when the outer cylinder 20 is molded. There is no cut, and the manufacture of the outer cylinder 20 is not complicated and difficult.

すなわち、第一実施形態によれば、施錠密閉状態と解錠非密閉状態の両方で鍵５０の引き抜きを許す管理に対応可能な仕様のものと、施錠密閉状態のみで鍵５０の引き抜きを許す管理に対応可能な仕様のものとを簡単に作り分けることが可能な密閉機能付きのシリンダ錠を得ることができる。 That is, according to the first embodiment, a specification that can handle the management that allows the key 50 to be pulled out in both the locked and unlocked state and the management that allows the key 50 to be pulled out only in the locked and sealed state. It is possible to obtain a cylinder lock with a sealing function that can be easily made separately from those having specifications compatible with the above.

第二実施形態を図９〜図１１に基づいて説明する。なお、以下では、第一実施形態との相違点を述べるに留める。図９は、第二タンブラ１４５を有する仕様のシリンダ錠を示し、図１０は、第二タンブラを具備しない仕様のシリンダ錠を示す。 A second embodiment will be described with reference to FIGS. In the following, only differences from the first embodiment will be described. FIG. 9 shows a cylinder lock with a specification having the second tumbler 145, and FIG. 10 shows a cylinder lock with a specification without the second tumbler.

図９、図１０に示すように、第二実施形態に係る内筒１００は、第一実施形態よりも多い数の第一タンブラ１４１〜１４３と、ストッパタンブラ１４４とを保持している。外筒１２０の第一溝１２３、第二溝１２４は、第一タンブラ１４１〜１４３の数を増やすため、第一実施形態よりも軸線方向に筒奥側へ延長されており、筒肉部１２５の位置もより筒奥側に変更されている。鍵１５０は、第一タンブラ１４１〜１４３の増加に応じて鍵山を増やしたものに変更されている。 As shown in FIGS. 9 and 10, the inner cylinder 100 according to the second embodiment holds a greater number of first tumblers 141 to 143 and stopper tumblers 144 than the first embodiment. In order to increase the number of the first tumblers 141 to 143, the first groove 123 and the second groove 124 of the outer cylinder 120 are extended to the inner side of the cylinder in the axial direction than the first embodiment. The position has also been changed to the tube back side. The key 150 has been changed to one with an increased key pile according to the increase in the first tumblers 141 to 143.

密閉操作体１３０の止め金１３２の板面には、軸線回りに９０°間隔で深座ぐり部１３３が形成されている。止め金１３２は、回動軸１３１に二本のねじ１３４で締結されている。深座ぐり部１３３は、ねじ１３４の頭部を埋める深さで形成されている。図１１に示す未使用の２つの深座ぐり部１３３にねじ止め箇所を変更すれば、止め金１３２の取付方向を第一姿勢又は第二姿勢と施錠姿勢又は解錠姿勢の対応関係を変更することができる。 Deep counterbore portions 133 are formed on the plate surface of the stopper 132 of the sealing operation body 130 at intervals of 90 ° around the axis. The stopper plate 132 is fastened to the rotating shaft 131 with two screws 134. The counterbore portion 133 is formed with a depth that fills the head of the screw 134. If the screwing location is changed to the two unused counterbore parts 133 shown in FIG. 11, the attachment direction of the clasp 132 is changed in correspondence between the first posture or the second posture and the locking posture or the unlocking posture. be able to.

その他、係止軸１３５がスプリングピンに変更され、内筒１００と外筒１２０の嵌め合い部にＯリングが追加されている。 In addition, the locking shaft 135 is changed to a spring pin, and an O-ring is added to the fitting portion between the inner cylinder 100 and the outer cylinder 120.

第二実施形態に係るシリンダ錠は、上述のようなものであり、密閉操作体１３０が回動軸１３１にねじ１３４で締結された止め金１３２を有し、回動軸１３１がねじ１３４の頭部を埋める深座ぐり部１３３を有するので、止め金１３２の締結に必要なスペースを止め金１３２の板厚内で取って、第一実施形態のようにナットで締結する場合よりもシリンダ錠の全長を短縮することができる。したがって、第二実施形態に係るシリンダ錠は、第一タンブラ１４１〜１４３の数を増加させることによりセキュリティ性を向上させつつ、そのための第一溝１２３等の延長に要する外筒１２０の全長増大を止め金１３２の締結省スペース化によって吸収し、シリンダ錠の全長拡大を避けることができる。 The cylinder lock according to the second embodiment is as described above. The sealing operation body 130 has a clasp 132 fastened to the rotation shaft 131 with a screw 134, and the rotation shaft 131 is the head of the screw 134. Since there is a deep counterbore portion 133 that fills the portion, a space required for fastening the stopper plate 132 is taken within the plate thickness of the stopper plate 132, and the cylinder lock is tightened compared to the case of fastening with a nut as in the first embodiment. The overall length can be shortened. Therefore, the cylinder lock according to the second embodiment improves the security by increasing the number of the first tumblers 141 to 143, while increasing the overall length of the outer cylinder 120 required for extending the first groove 123 and the like. By absorbing the clasp 132 to save space, it is possible to avoid an increase in the overall length of the cylinder lock.

なお、上述の実施形態では、運動変換機構の回り止めが有効な第一姿勢を施錠姿勢としたが、扉に第二姿勢の密閉操作体の回り止め部を設ける場合等、扉との接触で密閉操作体を回り止め可能な場合、第二姿勢を施錠姿勢にすることも可能である。また、上述の実施形態で施錠に対応の回転方向を右回転に変更したい場合、スリット部の螺旋巻き方向を逆にして、密閉操作体の止め金の向きを変更すればよい。また、扉枠の前面にシリンダ錠を配置する場合、通常、扉を前方から後方に向かって押してパッキンを圧縮するため、上述の実施形態で第一姿勢を解錠姿勢とし、第二姿勢を施錠姿勢として使用すればよい。また、上述の実施形態ではディスクシリンダ錠を例示したが、この発明は、内筒にタンブラを保持するシリンダ錠であれば、ロータリーディスクシリンダ錠等の他形式にも適用可能である。今回開示された各実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。したがって、本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 In the embodiment described above, the first posture in which the rotation prevention of the motion conversion mechanism is effective is the locking posture. However, when the door is provided with a rotation prevention portion of the sealing operation body in the second posture, the first posture is a contact with the door. When the sealing operation body can be prevented from rotating, the second posture can be set to the locked posture. Moreover, when it is desired to change the rotation direction corresponding to locking to the right rotation in the above-described embodiment, the direction of the clasp of the sealing operation body may be changed by reversing the spiral winding direction of the slit portion. Also, when the cylinder lock is arranged on the front surface of the door frame, the packing is usually compressed by pushing the door from the front to the rear, so the first posture is the unlocked posture and the second posture is locked in the above embodiment. Use it as a posture. In the above-described embodiment, the disk cylinder lock is exemplified. However, the present invention can be applied to other types such as a rotary disk cylinder lock as long as the cylinder lock holds the tumbler in the inner cylinder. Each embodiment disclosed this time should be considered as illustrative in all points and not restrictive. Accordingly, the scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

１０、１００内筒
１１鍵穴部
１２伝達軸
２０、１２０外筒
２２係止部
３０、１３０密閉操作体
３１、１３１回動軸
３５、１３５係止軸
３６スリット部
４１、４２、１４１、１４２、１４３第一タンブラ
４３、１４５第二タンブラ
５０、１５０鍵
１３２止め金
１３３深座ぐり部
１３４ねじ 10, 100 Inner cylinder 11 Keyhole part 12 Transmission shaft 20, 120 Outer cylinder 22 Locking part 30, 130 Sealing operation body 31, 131 Rotating shaft 35, 135 Locking shaft 36 Slit part 41, 42, 141, 142, 143 First tumbler 43, 145 Second tumbler 50, 150 Key 132 Clasp 133 Deep counterbore 134 Screw

Claims

An inner cylinder having a keyhole portion, an outer cylinder that accommodates the inner cylinder so as to be rotatable around an axis, a first attitude that faces a predetermined direction around the axis, and a direction that is different from the first attitude by a predetermined angle A sealing operation body arranged to be rotatable between the second postures and capable of reciprocating in the axial direction in the state of the first posture; and preventing the inner operation of the sealing operation body in the first posture from rotating in one direction The one-way rotation of the cylinder is converted into the movement of the sealing operation body to one side in the axial direction, and the other direction rotation of the sealing operation body moved to the one side is prevented and the other direction rotation of the inner cylinder is controlled to the sealing operation. The movement of the body in the axial direction is converted into movement on the other side, and the rotation between the first posture and the second posture of the sealing operation body that has been moved to the other side and the rotation of the inner cylinder are integrated. In a cylinder lock comprising a motion conversion mechanism linked to
On the inner surface of the outer cylinder, a first groove opened to the cylinder tip side and closed on the cylinder back side, a second groove facing the first groove in the cylinder radial direction and opened to the cylinder tip side, and the second groove And a cylindrical portion that closes the first groove at a position facing the cylindrical radial direction,
Either of the two positions of the inner cylinder rotation position when the inner cylinder becomes the sealing operation body moved to the one side and the inner cylinder rotation position when it becomes the sealing operation body in the second posture. However, holding the first tumbler that is retracted into the inner cylinder from the first groove or the second groove by contact with the key inserted in the keyhole portion,
The inner cylinder is retracted into the second groove by contact with the key pulled out from the key hole portion at one of the two positions, and is contacted with the key pulled out from the key hole portion on the other side and A cylinder lock characterized in that it can hold a second tumbler that prevents the key from being pulled out when it comes into contact with a cylindrical portion.

The sealing operation body has a rotation shaft fitted to the inner cylinder, a locking shaft protruding in a direction orthogonal to the axis, and a spiral slit provided on the rotation shaft;
The inner cylinder has a transmission shaft that transmits the rotational torque of the inner cylinder to the slit portion,
The outer cylinder has an opposing surface that forms a space extending in the axial direction, and has a locking portion in a shape in which one of the opposing surfaces is extended from the other,
In the state where the motion converting mechanism prevents the sealing operation body in the first posture from rotating with the locking portion and the locking shaft, the rotation of the inner cylinder is sealed with the slit portion and the transmission shaft. The cylinder lock according to claim 1, wherein the cylinder lock is converted into a reciprocating movement of the operating body.

The cylinder lock according to claim 2, wherein the sealing operation body has a clasp fastened to the rotation shaft with a screw, and the rotation shaft has a deep counterbore portion that fills the head of the screw.

4. The method of manufacturing a cylinder lock according to claim 1, wherein only the presence or absence of the second tumbler is varied in the assembly of the cylinder lock according to claim 1.