JP4685086B2 - Disc lock device - Google Patents

Disc lock device Download PDF

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JP4685086B2
JP4685086B2 JP2007319858A JP2007319858A JP4685086B2 JP 4685086 B2 JP4685086 B2 JP 4685086B2 JP 2007319858 A JP2007319858 A JP 2007319858A JP 2007319858 A JP2007319858 A JP 2007319858A JP 4685086 B2 JP4685086 B2 JP 4685086B2
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key
inner cylinder
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初夫 中井
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株式会社クローバー
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Description

この発明は、自動販売機、現金自動取引装置、金庫、貸ロッカー、建物の出入口の扉など、各種用途に適用されるディスク錠装置に関し、特に、この発明は、不適正な鍵が錠本体に挿入された場合は、その鍵を回すことができないディスク錠装置に関する。   The present invention relates to a disk lock device applied to various uses such as a vending machine, a cash automatic transaction apparatus, a safe, a rental locker, and a door of a building, and in particular, the present invention relates to an improper key in a lock body. The present invention relates to a disk lock device that cannot be rotated when inserted.

従来、この種のディスク錠装置として、高さが複数段階のいずれかに設定される矩形状の鍵山が長さ方向に複数設けられた鍵と、この鍵を挿入して正逆回動することにより施錠動作および解錠動作する錠本体との組み合わせから成るものが存在していた。前記錠本体は、外筒の内部に内筒が回動可能に配備され、前記内筒の内部には、複数のディスクと軸状のラッチ部材とが装填されている。   Conventionally, as this type of disc lock device, a key having a plurality of rectangular key ridges whose height is set in any one of a plurality of stages, and a forward and reverse rotation by inserting the key are inserted. There exist some which consist of the combination with the lock | rock main body which carries out locking operation | movement and unlocking operation | movement. The lock body has an inner cylinder rotatably disposed inside an outer cylinder, and a plurality of disks and a shaft-shaped latch member are loaded in the inner cylinder.

上記のディスク錠装置では、鍵の鍵違いは各鍵山の高さを変えることにより実現されるが、鍵山の高さを多段階に設定すると、各鍵山の高さに応じた形状の鍵挿通孔を有する多種類のディスクを製作しなければならず、ディスクの製作コストが高くつき、また鍵違いの数を増すには限界がある。   In the above-mentioned disk lock device, the key difference between the keys is realized by changing the height of each key pile. However, if the height of the key pile is set in multiple stages, a key insertion hole having a shape corresponding to the height of each key pile. Many types of discs having a large number of discs must be manufactured, and the disc manufacturing cost is high, and there is a limit to increasing the number of key differences.

そこで、出願人は先般、鍵の各鍵山の長さを複数段階のいずれかに設定するとともに、錠本体の各ディスクの厚みを、対応する各鍵山の長さに応じて複数段階のいずれかに設定するようにしたディスク錠装置を提案した（例えば、特許文献１参照）。このディスク錠装置によれば、各ディスクの鍵挿通孔の形状を変えることなく、鍵違いの数を増大することが可能である。   Therefore, the applicant has recently set the key length of each key to one of a plurality of levels, and the thickness of each disk of the lock body to one of a plurality of levels according to the length of each corresponding key stack. A disk locking device has been proposed (see, for example, Patent Document 1). According to this disk locking device, the number of key differences can be increased without changing the shape of the key insertion hole of each disk.

特許第２６１８８１９号公報Japanese Patent No. 2618819

ところが、上記したディスク錠装置では、適正な鍵が錠本体に挿入された場合も、適正でない鍵が錠本体に挿入された場合も、錠本体は鍵を所定の角度だけ回動操作することが可能な構造になっている。このため、間違った鍵を取り出し、その不適正な鍵を適正な鍵と思い込んで無理な力で鍵操作を行い、その結果、鍵や錠本体を破損させたり、解錠できないため、錠本体が故障であると誤認し、誤って錠本体を修理または交換したりするなどのトラブルが発生している。   However, in the above-described disk lock device, the lock body can rotate the key by a predetermined angle regardless of whether an appropriate key is inserted into the lock body or an incorrect key is inserted into the lock body. It has a possible structure. For this reason, the wrong key is taken out, the incorrect key is assumed to be the correct key, and the key is operated with an unreasonable force.As a result, the key or lock body cannot be damaged or unlocked. There is a problem such as misidentifying that it is a malfunction and repairing or replacing the lock body by mistake.

この発明は、上記した問題に着目してなされたもので、不適正な鍵が錠本体に挿入された場合は、その鍵を回せないような構成となすことにより、不適正な鍵を適正な鍵と思い込ませるおそれがないディスク錠装置を提案することを目的とする。   The present invention has been made paying attention to the above-described problem. When an inappropriate key is inserted into the lock body, the key cannot be turned properly. It is an object of the present invention to propose a disk lock device that does not have the risk of being conceived as a key.

この発明によるディスク錠装置は、長さが複数段階のいずれかに設定される矩形状の鍵山が高さを揃えて複数個列設された鍵と、前記鍵を挿入して回動することにより施錠または解錠の動作を行って掛止め金具を連動させる錠本体との組み合わせから成るものである。前記錠本体は、内周面に係合溝が長さ方向に沿って形成されている外筒と、外筒内に回動可能に支持され外筒の後方へ突出する掛止め金具の駆動軸を備えるとともに鍵の挿入を受け付ける待機状態のときに外筒の係合溝と連通する貫通孔が形成されている内筒と、挿入された鍵の各鍵山に対応する内筒内の各位置に内筒に対して少なくとも一方の方向に設定角度だけ回動可能に嵌挿され、外周縁には前記待機状態のときは内筒の貫通孔に対して設定角度だけ位置ずれし設定角度回動したときに内筒の貫通孔と連通する凹欠部が少なくとも１個形成されている複数枚のディスクと、内筒内のディスク間に内筒に対して回動しない状態で嵌挿され、外周縁には内筒の貫通孔と連通する凹欠部が形成されている複数枚の仕切板と、外筒の係合溝と内筒の貫通孔との連通部分に位置するとき内筒の回動を規制する状態を形成し、全ディスクの凹欠部と全仕切板の凹欠部とが一列に揃うことにより生成される凹溝と内筒の貫通孔との連通部分に位置するとき内筒の回動を許容する状態を形成する軸状のラッチ部材とを含んでいる。各ディスクは、前記の対応する鍵山の長さと一致する厚みを有し、各仕切板は、鍵山間の鍵溝の長さと一致する厚みを有し、各ディスクおよび各仕切板の板面には前記待機状態のときに一連に揃って鍵の挿脱が可能となる鍵挿通孔が形成されるとともに、各鍵挿通孔の孔周縁には鍵の回動により鍵山の部分には当接するが鍵山間の鍵溝の部分には当接しない段部が形成されている。   The disc lock device according to the present invention has a key in which a plurality of rectangular key piles whose length is set in any one of a plurality of stages are arranged at a height, and the key is inserted and rotated. It consists of a combination with a lock body that interlocks the latch metal by performing the operation of locking or unlocking. The lock body has an outer cylinder in which an engagement groove is formed on the inner peripheral surface along the length direction, and a drive shaft of a latch fitting that is rotatably supported in the outer cylinder and protrudes rearward of the outer cylinder. An inner cylinder in which a through hole communicating with the engagement groove of the outer cylinder is formed in a standby state for accepting key insertion, and at each position in the inner cylinder corresponding to each key pile of the inserted key. The inner cylinder is inserted so as to be rotatable by a set angle in at least one direction, and the outer peripheral edge is displaced by a set angle with respect to the through-hole of the inner cylinder in the standby state and rotated by a set angle. Sometimes a plurality of discs formed with at least one recess formed in communication with the through hole of the inner cylinder, and the inner periphery of the inner cylinder are inserted and inserted without rotating relative to the inner cylinder. Includes a plurality of partition plates formed with recessed portions communicating with the through holes of the inner cylinder, the engagement grooves of the outer cylinder, and the inner A groove that forms a state that restricts the rotation of the inner cylinder when it is located at a portion that communicates with the through-hole, and that is formed by aligning the notches of all the discs and the notches of all of the partition plates in a line. And a shaft-shaped latch member that forms a state in which the inner cylinder is allowed to rotate when positioned at a communicating portion between the inner cylinder and the through hole of the inner cylinder. Each disk has a thickness that matches the length of the corresponding key pile, and each partition plate has a thickness that matches the length of the keyway between the key rings. A key insertion hole is formed so that the keys can be inserted and removed in a row in the standby state, and the periphery of each key insertion hole comes into contact with the key ring portion by the rotation of the key. A step portion that does not come into contact with the keyway portion is formed.

上記した構成のディスク錠装置において、錠本体が鍵の挿入を受け付ける待機状態にあるとき、外筒の係合溝と内筒の貫通孔との連通部分に軸状のラッチ部材が位置することで、内筒の回動が規制されている。この待機状態では、各ディスクの鍵挿通孔と各仕切板の鍵挿通孔とが一連に揃って鍵の挿入が可能となっている。また、各仕切板の凹欠部は内筒の貫通孔と連通しているが、各ディスクの凹欠部は内筒の貫通孔と位置がずれているので、ラッチ部材は外筒の係合溝と内筒の貫通孔との連通部分に閉じ込められた状態にある。   In the disk lock device having the above-described configuration, when the lock body is in a standby state for accepting the insertion of the key, the shaft-shaped latch member is positioned at the communication portion between the engagement groove of the outer cylinder and the through hole of the inner cylinder. The rotation of the inner cylinder is restricted. In this standby state, the key insertion hole of each disk and the key insertion hole of each partition plate are aligned in series, and the key can be inserted. In addition, although the recessed portion of each partition plate communicates with the through hole of the inner cylinder, the position of the recessed portion of each disk is displaced from the through hole of the inner cylinder, so the latch member is engaged with the outer cylinder. It is in a state of being confined in the communication portion between the groove and the through hole of the inner cylinder.

上記した待機状態の錠本体に適正な鍵を挿入すると、鍵の各鍵山は対応するディスクの位置に位置し、また、鍵山間の各鍵溝は各仕切板の位置に位置する。鍵は各鍵山の位置で各ディスクの鍵挿通孔の段部に当接し、一方、鍵山間の各鍵溝の位置では各仕切板の鍵挿通孔の段部に当接しないので、施錠または解錠操作を行うために鍵を回したとき、各ディスクは鍵山によって引っ掛けられ、一方、各仕切板に対しては鍵は鍵挿通孔を空転し、各ディスクが鍵と一体に設定角度だけ回動する。その結果、全ディスクの凹欠部と全仕切板の凹欠部とが一列に揃って凹溝が生成され、この凹溝は内筒の貫通孔と連通するので、軸状のラッチ部材は内筒の貫通孔と凹溝との連通部分に移動することが可能となる。さらに、鍵を回すと、全ディスクと全仕切板と内筒とが一体に回動し、外筒の係合溝と内筒の貫通孔との連通部分に位置していたラッチ部材が押し出されて内筒の貫通孔と凹溝との連通部分へ移動する。これにより、内筒が外筒からの束縛から解放され、鍵と一体に回動するので、施錠または解錠動作が可能となる。   When an appropriate key is inserted into the lock body in the above-described standby state, each key pile of the key is located at the corresponding disk position, and each key groove between the key piles is located at the position of each partition plate. The key touches the step of the key insertion hole of each disk at the position of each key pile, while the key does not contact the step of the key insertion hole of each partition plate at the position of each key groove between the key piles. When the key is turned to perform the locking operation, each disk is hooked by the key pile. On the other hand, for each partition plate, the key idles through the key insertion hole, and each disk rotates together with the key by a set angle. To do. As a result, the recessed portions of all the discs and the recessed portions of all the partition plates are aligned to form a recessed groove, and the recessed groove communicates with the through hole of the inner cylinder. It becomes possible to move to a communicating portion between the through hole and the recessed groove of the cylinder. Further, when the key is turned, all the disks, all the partition plates, and the inner cylinder rotate integrally, and the latch member located at the communication portion between the engaging groove of the outer cylinder and the through hole of the inner cylinder is pushed out. Then, it moves to the communication portion between the through hole of the inner cylinder and the concave groove. As a result, the inner cylinder is released from the binding from the outer cylinder and rotates together with the key, so that the locking or unlocking operation can be performed.

不適正な鍵を挿入したときは、その鍵の各鍵山と各ディスクとが対応関係にないので、
いずれかの鍵山が仕切板の鍵挿通孔へはみ出て、その鍵挿通孔の段部に鍵の鍵山が当接する。その状態で鍵を回そうとしても、仕切板は鍵山に引っ掛けられるものの、内筒内に回動不能に嵌挿され、また、内筒はラッチ部材が外筒の係合溝と内筒の貫通孔との連通部分に閉じ込められて回動ができない状態にあるので、鍵を回すことができず、待機状態から施錠または解錠の動作を行うことができない。 When an improper key is inserted, each key pile of that key and each disk are not in a correspondence relationship.
One of the key piles protrudes into the key insertion hole of the partition plate, and the key pile of the key comes into contact with the step portion of the key insertion hole. Even if you try to turn the key in this state, the partition plate is hooked on the key ring, but it is non-rotatably inserted in the inner cylinder, and the inner cylinder is latched by the engaging groove of the outer cylinder and the inner cylinder. Since it is confined to the communicating portion with the hole and cannot rotate, the key cannot be turned, and the locking or unlocking operation cannot be performed from the standby state.

この発明の一実施態様においては、前記内筒は、前記待機状態から一方の方向へ決められた角度だけ回動することが可能であるとともに、前記内筒の駆動軸には、内筒の正逆各方向の回動に連動するように、前記掛止め金具が設けられている。   In one embodiment of the present invention, the inner cylinder can be rotated by an angle determined in one direction from the standby state, and a drive shaft of the inner cylinder is attached to the main cylinder. The latch is provided so as to be interlocked with the rotation in each reverse direction.

この実施態様の錠本体は、例えば金庫やロッカーなどに装着されるものであり、例えば施錠状態である待機状態で鍵を挿入して一方の方向へ回動操作すると、内筒が回動して、内筒と連動する掛止め金具が動作し、解錠状態となる。解錠状態から鍵を反対方向へ回して待機状態に戻すと、内筒に掛止め金具が連動し、施錠状態になる。   The lock body of this embodiment is attached to, for example, a safe or a locker. For example, when a key is inserted in a locked state in a standby state and operated to rotate in one direction, the inner cylinder rotates. Then, the latch metal interlocking with the inner cylinder is operated to be unlocked. When the key is turned in the opposite direction from the unlocked state to return to the standby state, the latch is interlocked with the inner cylinder to enter the locked state.

この発明の他の実施態様においては、前記内筒は、前記待機状態から正逆各方向へそれぞれ決められた角度だけ回動することが可能であるとともに、前記内筒の駆動軸には、内筒の正逆各方向の回動に連動するように、かつ内筒が回動方向を変えた後は前記の角度だけ内筒が空転するように、前記掛止め金具が設けられている。   In another embodiment of the present invention, the inner cylinder can be rotated from the standby state by a predetermined angle in each of forward and reverse directions, and the drive shaft of the inner cylinder includes an inner shaft. The latching metal fitting is provided so as to interlock with the rotation of the cylinder in the forward and reverse directions, and so that the inner cylinder rotates idly by the angle after the inner cylinder changes its rotation direction.

この実施態様の錠本体は、例えば建物の玄関口の扉に装着されるものであり、待機状態で鍵を挿入して一方の方向へ回動操作すると、内筒が同方向へ回動して内筒と連動する掛止め金具が駆動し、施錠状態が得られる。また、待機状態で鍵を挿入して逆方向へ回動操作すると、内筒が同方向へ回動して掛止め金具が駆動し、解錠状態が得られる。なお、内筒を回動させて施錠または解錠状態にした後、回動方向を変えて待機状態に戻すときは、掛止め金具は内筒と連動せず、施錠状態または解錠状態が保たれる。   The lock body of this embodiment is attached to, for example, a door of a building entrance. When a key is inserted in a standby state and operated to rotate in one direction, the inner cylinder rotates in the same direction. The latch fitting interlocked with the inner cylinder is driven to obtain a locked state. Further, when the key is inserted and rotated in the reverse direction in the standby state, the inner cylinder is rotated in the same direction and the latch is driven, and the unlocked state is obtained. Note that when the inner cylinder is rotated to the locked or unlocked state and then the rotation direction is changed to return to the standby state, the latch is not interlocked with the inner cylinder and the locked or unlocked state is maintained. Be drunk.

この発明の好ましい実施態様においては、前記鍵は、鍵山間の鍵溝が同じ長さに設定されるとともに、全ての仕切板は、同じ厚みに形成されているが、これに限らず、鍵山間の鍵溝の長さを複数段階のいずれかに設定するとともに、各仕切板の厚みを対応する鍵山間の鍵溝の長さと一致させるようにしてもよく、これにより鍵違いの数を一層増大することが可能である。   In a preferred embodiment of the present invention, the key is configured such that the keyway between the key mountains is set to the same length, and all the partition plates are formed to have the same thickness. The keyway length of each of the keys may be set in any of a plurality of stages, and the thickness of each partition plate may be matched with the length of the keyway between the corresponding key ridges, thereby further increasing the number of key differences. Is possible.

この発明の好ましい実施態様においては、全てのディスクと全ての仕切板は、鍵挿通孔が同一形状に形成されているが、例えば、ディスクの鍵挿通孔と仕切板の鍵挿通孔とを違えるようにしてもよい。   In a preferred embodiment of the present invention, all the disks and all the partition plates have the same key insertion holes. For example, the disk key insertion holes are different from the key insertion holes of the partition plates. It may be.

この発明のさらに好ましい実施態様においては、ピッキングを防止するために、前記鍵は、いずれかの鍵山の位置に前記鍵溝と連続する平坦部が設けられ、前記平坦部に対応する内筒内の位置には、施錠時に内筒の貫通孔と連通する凹欠部が外周縁に形成された第２のディスクが設けられている。   In a further preferred embodiment of the present invention, in order to prevent picking, the key is provided with a flat portion that is continuous with the keyway at any one of the key ridges, and in the inner cylinder corresponding to the flat portion. At the position, there is provided a second disk in which a recessed portion communicating with the through hole of the inner cylinder at the time of locking is formed on the outer peripheral edge.

上記した実施態様のディスク錠装置では、錠本体が鍵の挿入を受け付ける待機状態にあるとき、第２のディスクを含む各ディスクの鍵挿通孔と各仕切板の鍵挿通孔とが一連に揃って鍵を挿入することが可能となっている。また、各仕切板の凹欠部と第２のディスクの凹欠部とは内筒の貫通孔と連通し、一方、その他の各ディスクの凹欠部は内筒の貫通孔と位置がずれている。   In the disk lock device of the above-described embodiment, when the lock body is in a standby state for accepting key insertion, the key insertion hole of each disk including the second disk and the key insertion hole of each partition plate are aligned in series. It is possible to insert a key. Also, the notches of each partition plate and the notches of the second disk communicate with the through holes of the inner cylinder, while the other notches of each disk are displaced from the through holes of the inner cylinder. Yes.

一連に揃った全ディスクおよび全仕切板の鍵挿通孔へピッキングのための不正な工具を挿入して全ディスクを一斉に強制回動させると、鍵の鍵山に対応する位置の各ディスクの凹欠部は内筒の貫通孔と連通するが、第２のディスクの凹欠部は内筒の貫通孔と位置ずれすることになるので、全ディスクの凹欠部が一列に揃わず凹溝が生成されない。そのため、ラッチ部材は内筒の貫通孔と外筒の係合溝との連通部分に閉じ込められたままとなり、内筒が回動可能な状態にならない。   If an illegal tool for picking is inserted into the key insertion holes of all the disks and all the partition plates in a series and all the disks are forcibly rotated all at once, the notches of each disk at the position corresponding to the key pile of the key The part communicates with the through hole of the inner cylinder, but the recessed part of the second disc is displaced from the through hole of the inner cylinder, so that the recessed parts of all the disks are not aligned in a line and a groove is generated. Not. Therefore, the latch member remains confined in the communication portion between the through hole of the inner cylinder and the engaging groove of the outer cylinder, and the inner cylinder does not enter a rotatable state.

この発明は上記の如く、不適正な鍵が錠本体に挿入された場合は、その鍵を回わせないような構成としたから、不適正な鍵を適正な鍵と思い込ませるおそれがなく、無理な力で鍵操作を行うことによる鍵や錠本体の破損などを防止することができる。また、錠本体が故障であると誤認させるおそれがないので、誤って錠本体を修理したり交換したりすることもない。   Since the present invention is configured such that when an improper key is inserted into the lock body as described above, the key cannot be turned. It is possible to prevent the key or the lock body from being damaged due to the key operation with a strong force. In addition, since there is no possibility of misidentifying that the lock body is out of order, the lock body will not be repaired or replaced by mistake.

この発明にかかるディスク錠装置は、鍵と錠本体との組み合わせから成るもので、その第１実施例として、図２および図３に鍵２の外観が、図１および図４〜図１１に錠本体１の構成が、それぞれ示してある。
図１に示す錠本体１は、例えば金庫やロッカーなどの扉に装着され、錠本体１の内筒４と一体回動する金属板より成る板状の掛止め金具１０が鍵２の回動操作により往復動作し、この往復動作により掛止め金具１０が筐体の側に取り付けられる受け金具（図示せず）の溝に係脱するものである。 The disk locking device according to the present invention comprises a combination of a key and a lock body. As a first embodiment, the appearance of the key 2 is shown in FIGS. 2 and 3, and the lock is shown in FIGS. The structure of the main body 1 is shown respectively.
A lock body 1 shown in FIG. 1 is mounted on a door such as a safe or a locker, for example, and a plate-like latching bracket 10 made of a metal plate that rotates integrally with the inner cylinder 4 of the lock body 1 is used to rotate the key 2. The reciprocating operation causes the latch metal 10 to be engaged with and disengaged from a groove of a receiving metal (not shown) attached to the housing side.

図２（１）（２）および図３に示される鍵２は、全体が平板状をなし、鍵操作のためのつまみ部２０と、つまみ部２０より小さな幅であって錠本体１の前後の長さに応じた長さの鍵板部２１とが一体形成されている。前記鍵板部２１の板面は幅方向に沿って逆Ｓ字状に湾曲し、鍵２を錠本体１へ挿入したとき、鍵板部２１の丸みのある先端部２５が後述する内筒４の基底部４０に形成された錐状穴４１に突き当たる。
なお、鍵板部２１は、板面が必ずしも逆Ｓ字形状である必要はなく、矩形状であってもよい。 2 (1), (2) and FIG. 3 have a flat plate shape as a whole, a knob portion 20 for key operation, a width smaller than that of the knob portion 20, and the front and rear of the lock body 1. A key plate portion 21 having a length corresponding to the length is integrally formed. The plate surface of the key plate portion 21 is curved in an inverted S shape along the width direction, and when the key 2 is inserted into the lock body 1, a rounded tip portion 25 of the key plate portion 21 is an inner cylinder 4 described later. It strikes against a conical hole 41 formed in the base 40 of the.
The key plate portion 21 does not necessarily have an inverted S-shaped plate surface, and may have a rectangular shape.

図２（１）（２）は、図１の錠本体１に適合した適正な鍵２を、図３は、図１の錠本体に適合していない不適正な鍵２を、それぞれ示している。
図２（１）（２）に示す鍵２は、鍵板部２１の両側辺に、長さが複数段階（図示例では２段階）のいずれかにそれぞれ設定された複数個（図示例では５個ずつ）の鍵山２２Ａ〜２２Ｅが長さ方向に列設されている。各鍵山２２Ａ〜２２Ｅは高さｈが同一に揃えられている。なお、図示例のものは、説明を容易にするため、第１、第３、第４、第５の各鍵山２２Ａ，２２Ｃ，２２Ｄ，２２Ｅの長さｄをｄ１（例えばｄ１＝１．２ｍｍ）、第２の鍵山２２Ｂの長さｄをｄ２（例えばｄ２＝０．８ｍｍ）の２段階に設定しているが、その段階数を増せば、鍵違いを一層多く設定できる。 2 (1) and 2 (2) show an appropriate key 2 suitable for the lock body 1 of FIG. 1, and FIG. 3 shows an inappropriate key 2 not suitable for the lock body of FIG. .
The keys 2 shown in FIGS. 2 (1) and 2 (2) have a plurality (5 in the illustrated example) each having a length set to one of a plurality of levels (2 in the illustrated example) on both sides of the key plate portion 21. Are provided in a line in the length direction. The key piles 22A to 22E have the same height h. In the illustrated example, the length d of each of the first, third, fourth, and fifth key piles 22A, 22C, 22D, and 22E is set to d1 (for example, d1 = 1.2 mm) for ease of explanation. The length d of the second key pile 22B is set to two stages d2 (for example, d2 = 0.8 mm). However, if the number of stages is increased, more key differences can be set.

第２の鍵山２２Ｂと第３の鍵山２２Ｃとの間、および第３の鍵山２２Ｃと第４の鍵山２２Ｄとの間は同じ長さｔ（例えばｔ＝１．０ｍｍ）の鍵溝２３である。
第１の鍵山２２Ａと第２の鍵山２２Ｂとの間には長さｄ１の鍵山（点線で示す）を、また、第４の鍵山２２Ｄと第５の鍵山２２Ｅとの間には長さｄ２の鍵山（点線で示す）を、それぞれ設けることができるが、この実施例ではそれに代えて、各位置に長さｄ１の第１の平坦部２４Ｆと長さｄ２の第２の平坦部２４Ｇとが形成してある。これらの平坦部２４Ｆ，２４Ｇは両隣の鍵溝２３，２３と連続しているが、第１の鍵山２２Ａと第１の平坦部２４Ｆとの間、第１の平坦部２４Ｆと第２の鍵山２２Ｂとの間、第４の鍵山２２Ｄと第２の平坦部２４Ｇとの間、および第２の平坦部２４Ｇと第５の鍵山２２Ｅとの間は長さｔが同じ（例えばｔ＝１．０ｍｍ）の鍵溝である。 Between the second key pile 22B and the third key pile 22C, and between the third key pile 22C and the fourth key pile 22D, there is a key groove 23 having the same length t (for example, t = 1.0 mm).
A key mountain having a length d1 (shown by a dotted line) is provided between the first key mountain 22A and the second key mountain 22B, and a length d2 is provided between the fourth key mountain 22D and the fifth key mountain 22E. A key pile (indicated by a dotted line) can be provided, but in this embodiment, a first flat portion 24F having a length d1 and a second flat portion 24G having a length d2 are formed at each position instead. It is. These flat portions 24F and 24G are continuous with the adjacent key grooves 23 and 23, but between the first key portion 22A and the first flat portion 24F, the first flat portion 24F and the second key portion 22B. , The fourth key pile 22D and the second flat portion 24G, and the second flat portion 24G and the fifth key pile 22E have the same length t (for example, t = 1.0 mm). It is a key groove.

各鍵山２２Ａ〜２２Ｅの長さｄは後述する第１のディスク５の厚みｕに、また、各平坦部２４Ｆ，２４Ｇの長さｄは後述する第２のディスク７の厚みｖに、さらに、各鍵溝２３の長さｔは仕切板６の厚みｗに、それぞれ対応している。なお、第２のディスク７はピッキングによる不正解錠を防止するためのもので、その種の不正解錠を他の手段で防止するような場合は、第２のディスク７に代えて第１のディスク５を用いることもできる。   The length d of each key pile 22A-22E is the thickness u of the first disk 5 described later, the length d of each flat portion 24F, 24G is the thickness v of the second disk 7 described later, The length t of the keyway 23 corresponds to the thickness w of the partition plate 6, respectively. Note that the second disk 7 is for preventing unauthorized unlocking by picking. When other types of unauthorized unlocking are to be prevented, the first disk 7 is replaced with the first disk 7. A disk 5 can also be used.

図３に示す不適正な鍵２は、第２の鍵山２２Ｂの長さｄがｄ１（例えばｄ１＝１．２ｍｍ）であり、第４の鍵山２２Ｄの長さｄがｄ２（例えばｄ２＝０．８ｍｍ）であり、図２（１）（２）に示した適正な鍵２の各鍵山２２Ｂ，２２Ｄとは長さｄが一致していない。その結果、この不適正な鍵２を錠本体１に挿入した場合（後述する図１０参照）、第２の鍵山２２Ｂと第３の鍵山２２Ｃとが、各鍵山と対応する第１のディスク５Ｂ，５Ｃから仕切板６の側へはみ出すことになり、鍵２を回すことができない。なお、図３において、Ｐ，Ｑで示す破線部分は前記のはみ出し部分である。   In the inappropriate key 2 shown in FIG. 3, the length d of the second key pile 22B is d1 (eg, d1 = 1.2 mm), and the length d of the fourth key pile 22D is d2 (eg, d2 = 0. 8 mm), and the length d does not match the key ridges 22B and 22D of the proper key 2 shown in FIGS. As a result, when the inappropriate key 2 is inserted into the lock body 1 (see FIG. 10 described later), the second key pile 22B and the third key pile 22C are connected to the first disk 5B corresponding to each key pile. It will protrude from 5C to the partition plate 6 side, and the key 2 cannot be turned. In FIG. 3, the broken line portions indicated by P and Q are the protruding portions.

図１に示す錠本体１は、外筒３、内筒４、前面板９、５枚の第１のディスク５Ａ〜５Ｅ、２枚の第２のディスク７Ｆ，７Ｇ、７枚の仕切板６Ａ，６Ｂ、丸軸状のラッチ部材８などで構成されている。内筒４は外筒３の後方へ突出するネジ軸４５を一体に備えている。このネジ軸４５は、掛止め金具１０を駆動する駆動軸を構成するもので、ネジ軸４５には内筒４の回動に連動して回動するように掛止め金具１０が取り付けられている。なお、鍵２および錠本体１を構成する各部材はステンレスなどの金属材により形成されている。   1 includes an outer cylinder 3, an inner cylinder 4, a front plate 9, five first disks 5A to 5E, two second disks 7F and 7G, seven partition plates 6A, 6B, a round shaft-shaped latch member 8 and the like. The inner cylinder 4 is integrally provided with a screw shaft 45 that protrudes rearward from the outer cylinder 3. The screw shaft 45 constitutes a drive shaft for driving the latch metal 10, and the latch metal 10 is attached to the screw shaft 45 so as to rotate in conjunction with the rotation of the inner cylinder 4. . Each member constituting the key 2 and the lock main body 1 is formed of a metal material such as stainless steel.

外筒３は、後端が開放された円筒体であり、図１および図４に示すように、円筒体の底に当たる前端部３０には前面板９が回動自由に嵌挿される円形孔３１が開設されている。前面板９には、鍵２の鍵板部２１の断面形状に一致する逆Ｓ字形状の鍵孔９０が形成されている。この鍵孔９０は、後述する各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇや仕切板６Ａ，６Ｂの鍵挿通孔５０，７０，６０と連通する。   The outer cylinder 3 is a cylindrical body whose rear end is open, and as shown in FIGS. 1 and 4, a circular hole 31 into which the front plate 9 is rotatably inserted in a front end portion 30 that contacts the bottom of the cylindrical body. Has been established. The front plate 9 is formed with an inverted S-shaped key hole 90 that matches the cross-sectional shape of the key plate portion 21 of the key 2. The key hole 90 communicates with the key insertion holes 50, 70, 60 of the disks 5A to 5E, 7F, 7G and the partition plates 6A, 6B, which will be described later.

図４は、鍵２の挿入を受け付ける待機状態を示しており、前面板９の鍵孔９０は上下方向を向いている。なお、この実施例では、錠本体１は前記待機状態では、掛止め金具１０が筐体の側の受け金具の溝に係合した施錠状態となっている。また、錠本体１に鍵２が挿入されたとき、待機状態以外の状態では鍵２を錠本体１から抜き取ることができないようになっている。   FIG. 4 shows a standby state in which the insertion of the key 2 is accepted, and the key hole 90 of the front plate 9 faces in the vertical direction. In this embodiment, in the standby state, the lock body 1 is in a locked state in which the latch metal 10 is engaged with the groove of the receiving metal on the housing side. Further, when the key 2 is inserted into the lock body 1, the key 2 cannot be removed from the lock body 1 in a state other than the standby state.

前記待機状態では、図２（１）（２）に示した適正な鍵２だけでなく、図３に示した不適正な鍵２も、鍵孔９より錠本体１の内部へ挿入することができるが、適正な鍵２は前記待機状態から一方の方向へ所定の角度β（図示例ではβ＝１１０度）回すことが可能であるのに対し、不適正な鍵２は挿入状態のままで回すことができない。以下、鍵２を回すことができる角度βを「鍵操作角度」という。   In the standby state, not only the proper key 2 shown in FIGS. 2 (1) and (2) but also the incorrect key 2 shown in FIG. 3 can be inserted into the lock body 1 from the key hole 9. Although the proper key 2 can be turned from the standby state by a predetermined angle β (β = 110 degrees in the illustrated example) in one direction, the incorrect key 2 remains inserted. I can't turn it. Hereinafter, the angle β at which the key 2 can be turned is referred to as “key operation angle”.

図４において、Ｒ１は待機位置（施錠位置）、Ｒ２は内筒４の回動が許容されて解錠操作が可能となる解錠可能位置、Ｒ３は鍵操作の終端となる解錠位置を示している。同図において、待機位置Ｒ１から解錠可能位置Ｒ２に至るまでは錠本体１の内筒４に対して鍵２が空転する。この実施例では、解錠のための操作角度（以下、「解錠操作角度」という。）αを２０度に設定している。解錠可能位置Ｒ２からさらに鍵２を回すと、内筒４が一体に回り出してネジ軸４５上の掛止め金具１０が一体回動し、筐体の側の受け金具の溝から脱出する。これにより金庫やロッカーなどの扉を開くことが可能な解錠状態となる。したがって、掛止め金具１０が内筒４と一体に回動する角度γは９０度（γ＝β−α）である。   In FIG. 4, R1 is a standby position (locking position), R2 is an unlockable position where the inner cylinder 4 is allowed to rotate and can be unlocked, and R3 is an unlocking position that is the end of the key operation. ing. In the figure, the key 2 is idled with respect to the inner cylinder 4 of the lock body 1 from the standby position R1 to the unlockable position R2. In this embodiment, the unlocking operation angle (hereinafter referred to as “unlocking operation angle”) α is set to 20 degrees. When the key 2 is further rotated from the unlockable position R2, the inner cylinder 4 is integrally rotated, and the latching metal fitting 10 on the screw shaft 45 is integrally rotated to escape from the groove of the receiving metal fitting on the housing side. Thereby, it will be in the unlocked state which can open doors, such as a safe and a locker. Therefore, the angle γ at which the latch metal 10 rotates together with the inner cylinder 4 is 90 degrees (γ = β−α).

外筒３の後端面には、図５に示すように、上記した鍵操作の終端の解錠位置Ｒ３を設定するためのストッパー３５が一体に突設されている。一方、内筒４のネジ軸４５上には回動規制板４７がネジ軸４５と一体に回動するようにナット４６によって固定されている。この回動規制板４７がストッパー３５に当たることで、内筒４の回動が規制され、これにより内筒４の回動が可能な角度γが設定される。回動規制板４７は対角位置に当たり端面４７ａ，４７ｂを有しており、図５（１）に示す待機状態（施錠状態）では、一方の当たり端面４７ｂがストッパー３５に突き当たっている。鍵２を前記した解錠可能位置Ｒ２からさらに回し、掛止め金具１０を内筒４と一体に角度γ（９０度）回動させると、図５（２）に示すように、回動規制板４７の他方の当たり端面４７ａがストッパー３５に突き当たり、それ以上の回動が規制される。   As shown in FIG. 5, a stopper 35 for setting the unlocking position R <b> 3 at the end of the key operation is integrally projected on the rear end surface of the outer cylinder 3. On the other hand, a rotation regulating plate 47 is fixed on the screw shaft 45 of the inner cylinder 4 by a nut 46 so as to rotate integrally with the screw shaft 45. When the rotation restricting plate 47 hits the stopper 35, the rotation of the inner cylinder 4 is restricted, and thereby the angle γ at which the inner cylinder 4 can be rotated is set. The rotation restricting plate 47 has contact end faces 47a and 47b at diagonal positions, and one contact end face 47b abuts against the stopper 35 in the standby state (locked state) shown in FIG. When the key 2 is further rotated from the unlockable position R2 and the latch member 10 is rotated integrally with the inner cylinder 4 by an angle γ (90 degrees), as shown in FIG. The other abutting end face 47a of 47 abuts against the stopper 35, and further rotation is restricted.

外筒３の内周面の所定角度位置には、図６〜図９に示すように、ラッチ部材８の半分が嵌り込んで内筒４の回動を規制する係合溝３２が外筒３のほぼ全長にわたり長さ方向に形成してある。なお、図６は図１のＡ−Ａ線に沿う断面図であり、同図には第１のディスク５Ｂが表されている。図７は図１のＢ−Ｂ線に沿う断面図であり、同図には第２のディスク７Ｆが表されている。図８は図１のＣ−Ｃ線に沿う断面図であり、同図には仕切板６Ａが現れている。図９は図１のＤ−Ｄ線に沿う断面図であり、同図には先頭位置の前部仕切板６Ｂが現れている。なお、各図の（１）は待機時（施錠時）の状態を、（２）は鍵２を解錠操作角度αだけ回したときの解錠操作可能時の状態を、（３）は鍵２を鍵操作角度βだけ回したときの解錠時の状態を、それぞれ示す。   As shown in FIGS. 6 to 9, an engagement groove 32 that fits half of the latch member 8 and restricts the rotation of the inner cylinder 4 is provided at a predetermined angular position on the inner peripheral surface of the outer cylinder 3. Are formed in the length direction over almost the entire length of the. FIG. 6 is a cross-sectional view taken along the line AA in FIG. 1 and shows the first disk 5B. FIG. 7 is a cross-sectional view taken along the line B-B in FIG. 1, in which the second disk 7 </ b> F is represented. FIG. 8 is a cross-sectional view taken along the line CC of FIG. 1, and a partition plate 6A appears in the same figure. FIG. 9 is a cross-sectional view taken along the line DD in FIG. 1, and the front partition plate 6B at the head position appears in the same drawing. In each figure, (1) is the standby (locking) state, (2) is the unlocked operation state when the key 2 is rotated by the unlocking operation angle α, and (3) is the key. The unlocked state when 2 is turned by the key operation angle β is shown respectively.

図６（１）に示すように、外筒３の係合溝３２と内筒４に形成された貫通孔４３との連通部分にラッチ部材８が位置して閉じ込められたとき、内筒４の回動を規制する状態が形成される。係合溝３２の一方の溝壁３３はラッチ部材８が係合溝３２から脱出し易いように傾斜させている。   As shown in FIG. 6 (1), when the latch member 8 is located and confined in the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 formed in the inner cylinder 4, A state for restricting the rotation is formed. One groove wall 33 of the engagement groove 32 is inclined so that the latch member 8 can easily escape from the engagement groove 32.

内筒４は、図１および図６〜図９に示すように、外筒３の後端の開放部より外筒３の内部に回動可能に嵌挿される筒壁部４２を備えている。この筒壁部４２の内部には、５枚の第１のディスク５Ａ〜５Ｅと２枚の第２のディスク７Ｆ，７Ｇと７枚の仕切板６Ａ，６Ｂとが積層した状態で嵌挿されている。仕切板６Ａはディスク間に介在し、前部仕切板６Ｂは先頭に位置する。筒壁部４２の後端部には基底部４０が一体形成されている。基底部４０の内面に前記錐状穴４１が形成され、基底部４０の外面に前記ネジ軸４５が一体に突設されている。   As shown in FIGS. 1 and 6 to 9, the inner cylinder 4 includes a cylindrical wall portion 42 that is rotatably inserted into the outer cylinder 3 from an open portion at the rear end of the outer cylinder 3. Inside the cylindrical wall portion 42, five first disks 5A to 5E, two second disks 7F and 7G, and seven partition plates 6A and 6B are fitted and inserted. Yes. The partition plate 6A is interposed between the disks, and the front partition plate 6B is located at the head. A base 40 is integrally formed at the rear end of the cylindrical wall 42. The conical hole 41 is formed on the inner surface of the base portion 40, and the screw shaft 45 is integrally projected on the outer surface of the base portion 40.

内筒４の筒壁部４２には、鍵２の挿入を受け付ける待機時（施錠時）に外筒３の係合溝３２と位置が揃ったときに連通する貫通孔４３が長さ方向に形成されている。貫通孔４３は、筒壁部４２を貫通するものであり、解錠操作可能時には第１のディスク５Ａ〜５Ｅ、第２のディスク７Ｆ，７Ｇ、仕切板６Ａ、および前部仕切板６Ｂの後述する凹欠部５４，７４，６４が一列に揃うことにより生成される凹溝１００と連通する（図６（２）、図７（２）、図８（２）参照）。   A through-hole 43 that communicates with the engaging groove 32 of the outer cylinder 3 in the lengthwise direction is formed in the cylindrical wall portion 42 of the inner cylinder 4 at the time of waiting for receiving the insertion of the key 2 (at the time of locking). Has been. The through-hole 43 passes through the cylindrical wall portion 42, and when the unlocking operation is possible, the first disks 5A to 5E, the second disks 7F and 7G, the partition plate 6A, and the front partition plate 6B will be described later. The recesses 54, 74, and 64 communicate with the recessed groove 100 that is generated by aligning the recesses 54, 74, and 64 (see FIGS. 6 (2), 7 (2), and 8 (2)).

また、内筒４の筒壁部４２には、第１のディスク５Ａ〜５Ｅ、第２のディスク７Ｆ，７Ｇ、仕切板６Ａ、および前部仕切板６Ｂの外周部にそれぞれ一体形成された扇状の突片５３，７３，６３が係合する開放部４４が形成されており、開放部４４の両端４４ａ，４４ｂには、第１、第２の各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇ、仕切板６Ａ，６Ｂの突片５３，６３，７３の両端が突き当たる。   Further, the cylindrical wall portion 42 of the inner cylinder 4 has a fan-like shape integrally formed on the outer peripheral portions of the first disks 5A to 5E, the second disks 7F and 7G, the partition plate 6A, and the front partition plate 6B. Opening portions 44 with which the projecting pieces 53, 73, 63 are engaged are formed, and first and second disks 5A to 5E, 7F, 7G, and a partition plate 6A are formed at both ends 44a, 44b of the opening portion 44. , 6B projecting pieces 53, 63, 73 abut both ends.

５枚の第１のディスク５Ａ〜５Ｅ、２枚の第２のディスク７Ｆ，７Ｇ、７枚の仕切板６Ａ，６Ｂは、内筒４の筒壁部４２の内径にほぼ一致する直径を有し、外周部には外筒３の内径にほぼ一致する直径を有する扇状の突片５３，７３，６３がそれぞれ一体形成されている。   The five first disks 5 </ b> A to 5 </ b> E, the two second disks 7 </ b> F and 7 </ b> G, and the seven partition plates 6 </ b> A and 6 </ b> B have a diameter that substantially matches the inner diameter of the cylindrical wall portion 42 of the inner cylinder 4. Fan-shaped projecting pieces 53, 73, 63 having a diameter substantially matching the inner diameter of the outer cylinder 3 are integrally formed on the outer peripheral portion.

第１のディスク５Ａ〜５Ｅおよび第２のディスク７Ｆ，７Ｇの各突片５３，７３は、図６および図７に示されるように、各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇが内筒４内で前記の解錠操作角度αだけ回動可能なように前記筒壁部４２に形成された開放部４４の開き角度θ１より小さな角度θ２（θ２＝θ１−α）に形成されている。
各仕切板６Ａ，６Ｂの各突片６３は、図８および図９に示されるように、各仕切板６Ａ，６Ｂが内筒４内で回動しないように前記開放部４４の開き角度θ１と一致する角度θ３（θ３＝θ１）に形成されている。 As shown in FIGS. 6 and 7, the protrusions 53 and 73 of the first disks 5 </ b> A to 5 </ b> E and the second disks 7 </ b> F and 7 </ b> G are arranged in the inner cylinder 4. It is formed at an angle θ2 (θ2 = θ1-α) smaller than the opening angle θ1 of the opening portion 44 formed on the cylindrical wall portion 42 so as to be rotatable by the unlocking operation angle α.
As shown in FIGS. 8 and 9, the projecting pieces 63 of the partition plates 6 </ b> A and 6 </ b> B have an opening angle θ <b> 1 of the opening 44 so that the partition plates 6 </ b> A and 6 </ b> B do not rotate within the inner cylinder 4. The matching angle θ3 (θ3 = θ1) is formed.

第１のディスク５Ａ〜５Ｅ、第２のディスク７Ｆ，７Ｇ、仕切板６Ａ，６Ｂの板面中央には、鍵２の挿入を受け付ける待機状態に一連に揃って鍵２の挿脱が可能となる鍵挿通孔５０，７０，６０がそれぞれ同一形状に形成されている。各鍵挿通孔５０，７０，６０は、鍵２の施錠方向Ｔに位置する孔側縁を復帰動作用の当り縁５０ａ，７０ａ，６０ａとなし、この当り縁５０ａ，７０ａ，６０ａと対向する孔側縁、すなわち解錠方向Ｓに位置する孔側縁に鍵２の各鍵山２２Ａ〜２２Ｅの高さｈに応じた高さの段部５１，７１，６１と、その孔側縁が鍵溝２３の高さ（位置）で切り欠かれた切欠部５２，７２．６２とが形成されている。段部５１，７１，６１は、鍵２の各鍵山２２Ａ〜２２Ｅに当接するが、鍵山間の鍵溝２３の部分に当接せずに切欠部５２，７２．６２へ回り込む。前記切欠部５２，７２，６２は孔側縁を少なくとも解錠操作角度αに対応する角度だけ切り欠いて形成される。   At the center of the plate surfaces of the first discs 5A to 5E, the second discs 7F and 7G, and the partition plates 6A and 6B, a key that allows the key 2 to be inserted and removed in a series in a standby state for accepting the insertion of the key 2. The insertion holes 50, 70, 60 are formed in the same shape. Each of the key insertion holes 50, 70, 60 has a hole side edge located in the locking direction T of the key 2 as a return edge 50a, 70a, 60a for return operation, and a hole facing the contact edge 50a, 70a, 60a. On the side edge, that is, the hole side edge located in the unlocking direction S, the step portions 51, 71, 61 having heights corresponding to the height h of the key ridges 22 A to 22 E of the key 2, and the hole side edges are the key grooves 23. Are formed at the height (position) of notches 52 and 72.62. The step portions 51, 71, 61 abut against the key ridges 22 </ b> A to 22 </ b> E of the key 2, but do not contact the portion of the key groove 23 between the key ridges, but wrap around the notches 52, 72.62. The notches 52, 72, 62 are formed by notching the hole side edges at least by an angle corresponding to the unlocking operation angle α.

第１のディスク５Ａ〜５Ｅ、第２のディスク７Ｆ，７Ｇ、および仕切板６Ａは、外周縁をＵ字状に切り欠いて形成された凹欠部５４，７４，６４を有している。
第１のディスク５Ａ〜５Ｅの凹欠部５４は、前記待機状態に内筒４の貫通孔４３に対して解錠操作角度αだけ回転後方に位置するような角度位置に（図６（１）参照）、また、第２のディスク７Ｆ，７Ｇの凹欠部７４と仕切板６Ａの凹欠部６４とは、前記待機状態に内筒４の貫通孔４３と位置が揃って連通するような角度位置に（図７（１）、図８（１）参照）、それぞれ設けられている。 The first disks 5A to 5E, the second disks 7F and 7G, and the partition plate 6A have recesses 54, 74, and 64 that are formed by cutting the outer peripheral edge into a U shape.
The recesses 54 of the first disks 5A to 5E are at an angular position that is positioned behind the through hole 43 of the inner cylinder 4 by the unlocking operation angle α in the standby state (FIG. 6 (1)). The recesses 74 of the second disks 7F and 7G and the recesses 64 of the partition plate 6A are angled so as to communicate with the through holes 43 of the inner cylinder 4 in the standby state. It is provided at each position (see FIGS. 7 (1) and 8 (1)).

第１のディスク５Ａ〜５Ｅの各凹欠部５４と第２のディスク７Ｆ，７Ｇの各凹欠部７４と仕切板６Ａの各凹欠部６４とが全て一列に揃うことにより生成される凹溝１００と内筒４の貫通孔４３とが連通したとき（図６（２）、図７（２）、図８（２）参照）、内筒４の回動が許容されて解錠操作が可能な状態となり、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に閉じ込められていたラッチ部材８は前記凹溝１００と内筒４の貫通孔４３との連通部分へ移動可能となる。なお、前部仕切板６Ｂには凹欠部６４に代えて突部９９が形成されており、この突部９９によりラッチ部材８の軸方向の移動を規制している。   Grooves generated by aligning the recesses 54 of the first disks 5A to 5E, the recesses 74 of the second disks 7F and 7G, and the recesses 64 of the partition plate 6A all in one row. When 100 and the through hole 43 of the inner cylinder 4 communicate with each other (see FIGS. 6 (2), 7 (2), and 8 (2)), the inner cylinder 4 is allowed to rotate and can be unlocked. Thus, the latch member 8 confined in the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 is moved to the communication portion between the concave groove 100 and the through hole 43 of the inner cylinder 4. It becomes movable. Note that a protrusion 99 is formed on the front partition plate 6B instead of the recess 64, and the protrusion 99 restricts the movement of the latch member 8 in the axial direction.

前記ラッチ部材８は、内筒４の筒壁部４２の長さよりわずかに短い丸軸体であって、外筒３の内周位置に第１、第２の各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇや仕切板６Ａと直交させて配備されている。   The latch member 8 is a round shaft that is slightly shorter than the length of the cylindrical wall portion 42 of the inner cylinder 4, and the first and second disks 5 </ b> A to 5 </ b> E, 7 </ b> F, 7 </ b> G are disposed at the inner peripheral position of the outer cylinder 3. And the partition plate 6A.

第１のディスク５Ａ〜５Ｅおよび第２のディスク７Ｆ，７Ｇは、それぞれの厚みが複数段階（この実施例では２段階）に設定されており、第１のディスク５Ａ〜５Ｅは鍵２の対応する鍵山２２Ａ〜２２Ｅの長さｄと一致する厚みｕを有し、第２のディスク７Ｆ，７Ｇは鍵２の対応する平坦部２４Ｆ，２４Ｇの長さｄと一致する厚みｖを有している。
この実施例では、第１のディスク５Ａ〜５Ｅのうち、５Ａ，５Ｃ，５Ｄ，５Ｅの各ディスクは第１、第３、第４、第５の各鍵山２２Ａ，２２Ｃ，２２Ｄ，２２Ｅの長さｄ１と一致する厚みｕ１（例えばｕ１＝１．２ｍｍ）に、５Ｂのディスクは第２の鍵山２２Ｂの長さｄ２と一致する厚みｕ２（例えばｕ２＝０．８ｍｍ）に、それぞれ設定されている。また、第２のディスク７Ｆ，７Ｇのうち、７Ｆのディスクは第１の平坦部２４Ｆの長さｄ１と一致する厚みｖ１（例えばｖ１＝１．２ｍｍ）に、７Ｇのディスクは第２の平坦部２４Ｇの長さｄ２と一致する厚みｖ２（例えばｖ２＝０．８ｍｍ）に、それぞれ設定されている。
各仕切板６Ａは鍵２の鍵山間の鍵溝２３の長さｔと一致する厚みｗ（例えばｗ＝１．０ｍｍ）を有している。なお、前部仕切板６Ｂの厚みは仕切板６Ａの厚みｗより小さな値に設定されている。 The thicknesses of the first disks 5A to 5E and the second disks 7F and 7G are set to a plurality of stages (two stages in this embodiment), and the first disks 5A to 5E correspond to the key 2. The second disks 7F and 7G have a thickness v that coincides with the length d of the corresponding flat portions 24F and 24G of the key 2. The thickness u coincides with the length d of the key piles 22A to 22E.
In this embodiment, among the first disks 5A to 5E, the 5A, 5C, 5D, and 5E disks have the lengths of the first, third, fourth, and fifth key piles 22A, 22C, 22D, and 22E. The 5B disc is set to a thickness u1 (for example, u2 = 0.8 mm) that matches the length d2 of the second key pile 22B. Of the second disks 7F and 7G, the 7F disk has a thickness v1 (for example, v1 = 1.2 mm) that matches the length d1 of the first flat part 24F, and the 7G disk has the second flat part. Each thickness is set to a thickness v2 (for example, v2 = 0.8 mm) that matches the length d2 of 24G.
Each partition plate 6A has a thickness w (for example, w = 1.0 mm) that matches the length t of the keyway 23 between the key piles of the key 2. The thickness of the front partition plate 6B is set to a value smaller than the thickness w of the partition plate 6A.

上記した第１実施例のディスク錠装置において、錠本体１が待機状態（この実施例では施錠状態）にあるとき、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分にラッチ部材８が位置し、内筒４は回動が規制されている（図６（１）、図７（１）、図８（１）、図９（１）参照）。この待機状態では、各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇの鍵挿通孔５０，７０と各仕切板６Ａ，６Ｂの鍵挿通孔６０とが一連に揃って鍵２を挿入することが可能である。また、第２のディスク７Ｆ，７Ｇの凹欠部７４および各仕切板６Ａの凹欠部６４は内筒４の貫通孔４３と連通しているが（図７（１）、図８（１）参照）、第１のディスク５Ａ〜５Ｅの凹欠部５４は内筒４の貫通孔４３と位置がずれている（図６（１）参照）。このため、ラッチ部材８は外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に位置し、閉じ込められた状態に保持される。   In the disk locking device of the first embodiment described above, when the lock body 1 is in the standby state (in this embodiment, the locked state), the communicating portion between the engaging groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 The latch member 8 is positioned on the inner cylinder 4, and the rotation of the inner cylinder 4 is restricted (see FIGS. 6 (1), 7 (1), 8 (1), and 9 (1)). In this standby state, it is possible to insert the key 2 with the key insertion holes 50, 70 of the disks 5A to 5E, 7F, 7G and the key insertion holes 60 of the partition plates 6A, 6B aligned in series. Further, the recessed portions 74 of the second disks 7F and 7G and the recessed portions 64 of the respective partition plates 6A communicate with the through-holes 43 of the inner cylinder 4 (FIGS. 7 (1) and 8 (1). The recessed portions 54 of the first disks 5A to 5E are displaced from the through holes 43 of the inner cylinder 4 (see FIG. 6A). For this reason, the latch member 8 is located in a communicating portion between the engaging groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 and is held in a confined state.

待機状態の錠本体１に適正な鍵２（図２）を挿入すると、鍵２の各鍵山２２Ａ〜２２Ｅは対応する第１のディスク５Ａ〜５Ｅの位置に位置し、また、各平坦部２４Ｆ，２４Ｇは対応する第２のディスク７Ｆ，７Ｇの位置に位置し、さらに、鍵山間の各鍵溝２３は各仕切板６Ａの位置に位置する（図１参照）。   When an appropriate key 2 (FIG. 2) is inserted into the lock main body 1 in the standby state, the key piles 22A to 22E of the key 2 are positioned at the positions of the corresponding first disks 5A to 5E, and the flat portions 24F, 24G is located at the position of the corresponding second disk 7F, 7G, and each key groove 23 between the key ridges is located at the position of each partition plate 6A (see FIG. 1).

挿入された鍵２は、各鍵山２２Ａ〜２２Ｅが第１のディスク５Ａ〜５Ｅの鍵挿通孔５０の段部５１に当たり、一方、鍵山間の各鍵溝２３の位置では各仕切板６Ａの鍵挿通孔６０の段部６２に当たらないので、鍵２を解錠方向Ｓへ回すと、第１のディスク５Ａ〜５Ｅは鍵山２２Ａ〜２２Ｅによって引っ掛けられ、一方、第２のディスク７Ｆ，７Ｇや各仕切板６Ａ，６Ｂに対しては鍵２は鍵挿通孔７０，６０の切欠部７２，６２に入り込んで空転し、第１のディスク５Ａ〜５Ｅだけが鍵２と一体に解錠操作角度αだけ回動する。その結果、第１のディスク５Ａ〜５Ｅの凹欠部５４と第２のディスク７Ｆ，７Ｇの凹欠部７４と仕切板６Ａの凹欠部６４とが一列に揃って凹溝１００が生成され、この凹溝１００は内筒４の貫通孔４３と連通するので、丸軸状のラッチ部材８は内筒４の貫通孔４３と凹溝１００との連通部分へ移動可能となり、解錠操作が可能な状態となる（図６（２）、図７（２）、図８（２）参照）。   In the inserted key 2, each of the key piles 22A to 22E hits the step portion 51 of the key insertion hole 50 of the first disk 5A to 5E, while the key insertion of each partition plate 6A is performed at the position of each key groove 23 between the key piles. Since it does not hit the stepped portion 62 of the hole 60, when the key 2 is rotated in the unlocking direction S, the first disks 5A to 5E are hooked by the key piles 22A to 22E, while the second disks 7F and 7G and each partition For the plates 6A and 6B, the key 2 enters the notches 72 and 62 of the key insertion holes 70 and 60 and idles, and only the first disks 5A to 5E rotate together with the key 2 by the unlocking operation angle α. Move. As a result, the recesses 54 of the first disks 5A to 5E, the recesses 74 of the second disks 7F and 7G, and the recesses 64 of the partition plate 6A are aligned to form the recess groove 100, Since this concave groove 100 communicates with the through hole 43 of the inner cylinder 4, the round shaft-shaped latch member 8 can be moved to the communication portion between the through hole 43 of the inner cylinder 4 and the concave groove 100, and can be unlocked. (See FIGS. 6 (2), 7 (2), and 8 (2)).

この状態からさらに、鍵２を回すと、全てのディスク５Ａ〜５Ｅ，７Ｆ，７Ｇと全ての仕切板６Ａ，６Ｂと内筒４とが一体回動し、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に位置していたラッチ部材８が傾斜する溝壁３３に沿って係合溝３２より押し出されて内筒４の貫通孔４３と凹溝１００との連通部分へ移動するので、内筒４は外筒３との係わりが切れて束縛から解放され、鍵２と一体に所定の角度γ（９０度）回動する（図６（３）、図７（３）、図８（３）、図９（３）参照）。これにより、掛止め金具１０が内筒４と一体に回動するため、筐体の側の受け金具の溝から脱出して解錠状態となる。   When the key 2 is further rotated from this state, all the disks 5A to 5E, 7F, 7G, all the partition plates 6A, 6B, and the inner cylinder 4 are integrally rotated, and the engagement groove 32 of the outer cylinder 3 is The latch member 8 located at the communicating portion with the through-hole 43 of the cylinder 4 is pushed out from the engaging groove 32 along the inclined groove wall 33 and communicated between the through-hole 43 of the inner cylinder 4 and the recessed groove 100. Therefore, the inner cylinder 4 is disengaged from the outer cylinder 3 and released from the restraint, and rotates together with the key 2 by a predetermined angle γ (90 degrees) (FIG. 6 (3), FIG. 7 (3). ), FIG. 8 (3) and FIG. 9 (3)). Thereby, since the latching metal fitting 10 rotates integrally with the inner cylinder 4, it escapes from the groove | channel of the receiving metal fitting by the side of a housing | casing, and will be in an unlocked state.

そして、この解錠状態から鍵２を施錠方向Ｔへ９０度回すと、内筒４は全てのディスク５Ａ〜５Ｅ，７Ｆ，７Ｇと全ての仕切板６Ａ，６Ｂとともに鍵２と一体に回動して外筒３の係合溝３２と内筒４の貫通孔４３とが連通し、ラッチ部材８は外筒３の係合溝３２と内筒４の貫通孔４３との連通部分へ移動可能となる（図６（２）、図７（２）、図８（２）、図９（２）参照）。このとき、掛止め金具１０は内筒４と一体に回動して筐体の側の受け金具の溝に係合する。この状態からさらに鍵２を回すと、ラッチ部材８は凹溝１００より外筒３の係合溝３２と内筒４の貫通孔４３との連通部分へ移動するので、第１のディスク５Ａ〜５Ｅだけが鍵２とともに回動し、待機状態に戻る（図６（１）、図７（１）、図８（１）、図９（１）参照）。   When the key 2 is turned 90 degrees in the locking direction T from this unlocked state, the inner cylinder 4 rotates together with all the disks 5A to 5E, 7F, 7G and all the partition plates 6A, 6B together with the key 2. The engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 communicate with each other, and the latch member 8 can move to the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4. (See FIGS. 6 (2), 7 (2), 8 (2), and 9 (2)). At this time, the latch metal 10 rotates integrally with the inner cylinder 4 and engages with the groove of the metal receiver on the housing side. When the key 2 is further rotated from this state, the latch member 8 moves from the concave groove 100 to the communicating portion between the engaging groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4, so the first disks 5A to 5E. Only rotate together with the key 2 and return to the standby state (see FIG. 6 (1), FIG. 7 (1), FIG. 8 (1), FIG. 9 (1)).

つぎに、図１０および図１１に示すように、不適正な鍵２を錠本体１に挿入したときは、その不適正な鍵２（図３）と適正な鍵２（図２）とは、第２、第４の各鍵山２２Ｂ，２２Ｄの長さが一致せず、不適正な鍵２の各鍵山２２Ａ〜２２Ｅと第１のディスク５Ａ〜５Ｅとが対応関係にないので、第２の鍵山２２Ｂと第３の鍵山２２Ｃとが隣の仕切板６Ａの鍵挿通孔６０へそれぞれはみ出し、その鍵挿通孔６０の段部６１に鍵２の第２、第３の各鍵山２２Ｂ，２２Ｃが当たる（図１１参照）。その状態で鍵２を解錠方向Ｓへ回そうとしも、仕切板６は鍵山２２Ｂ，２２Ｃに引っ掛けられるものの、内筒４内に回動不能に嵌挿され、また、内筒４はラッチ部材８が外筒３の係合溝３２と内筒４の貫通溝４３との連通部分に閉じ込められて回動できない状態にあるので、鍵２を回すことができず、解錠操作を行うことができない。   Next, as shown in FIG. 10 and FIG. 11, when an improper key 2 is inserted into the lock body 1, the improper key 2 (FIG. 3) and the proper key 2 (FIG. 2) are: Since the lengths of the second and fourth key piles 22B and 22D do not match and the key piles 22A to 22E of the inappropriate key 2 and the first disks 5A to 5E are not in a correspondence relationship, the second key pile 22B and the third key ridge 22C protrude into the key insertion hole 60 of the adjacent partition plate 6A, and the second and third key ridges 22B and 22C of the key 2 hit the step 61 of the key insertion hole 60 ( (See FIG. 11). Even if an attempt is made to rotate the key 2 in the unlocking direction S in this state, the partition plate 6 is hooked on the key piles 22B and 22C, but is inserted in the inner cylinder 4 so as not to rotate, and the inner cylinder 4 is a latch member. 8 is confined in the communication portion between the engagement groove 32 of the outer cylinder 3 and the through groove 43 of the inner cylinder 4 and cannot rotate, so that the key 2 cannot be turned and the unlocking operation can be performed. Can not.

ところで、錠本体１が待機状態にあるとき、第１、第２の各ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇの鍵挿通孔５０，７０と各仕切板６Ａ，６Ｂの鍵挿通孔６０とが一連に揃って鍵２の挿入が可能となっている。また、各仕切板６Ａの凹欠部６４と第２のディスク７Ｆ，７Ｇの凹欠部７４とは内筒４の貫通孔４３と連通し、一方、第１のディスク５Ａ〜５Ｅの凹欠部５４は内筒４の貫通孔４３と位置がずれている。   By the way, when the lock body 1 is in the standby state, the key insertion holes 50 and 70 of the first and second disks 5A to 5E, 7F and 7G and the key insertion holes 60 of the partition plates 6A and 6B are in series. The key 2 can be inserted together. Further, the recesses 64 of the partition plates 6A and the recesses 74 of the second disks 7F and 7G communicate with the through holes 43 of the inner cylinder 4, while the recesses of the first disks 5A to 5E. 54 is displaced from the through hole 43 of the inner cylinder 4.

一連に揃った第１、第２の全てのディスク５Ａ〜５Ｅ，７Ｆ，７Ｇの鍵挿通孔５０，７０と全ての仕切板６Ａ，６Ｂの鍵挿通孔６０へピッキングのための不正な工具を挿入して全ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇを一斉に強制回動させると、第１のディスク５Ａ〜５Ｅの凹欠部５４は内筒４の貫通孔４３と連通するが、第２のディスク７Ｆ，７Ｇの凹欠部７４は内筒４の貫通孔４３と位置ずれすることになるので、全ディスク５Ａ〜５Ｅ，７Ｆ，７Ｇの凹欠部５４，７４が一列に揃わず凹溝１００が生成されない。そのため、軸状のラッチ部材８は内筒４の貫通孔４３と外筒３の係合溝３２との連通部分に閉じ込められたままとなり、解錠可能な状態にならない。   Incorrect tools for picking are inserted into the key insertion holes 50 and 70 of all the first and second disks 5A to 5E, 7F and 7G and the key insertion holes 60 of all the partition plates 6A and 6B. Then, when all the disks 5A to 5E, 7F, and 7G are forcibly rotated all at once, the recessed portions 54 of the first disks 5A to 5E communicate with the through hole 43 of the inner cylinder 4, but the second disk 7F. , 7G recessed portions 74 are displaced from the through holes 43 of the inner cylinder 4, so that the recessed portions 54, 74 of all the disks 5 </ b> A to 5 </ b> E, 7 </ b> F, 7 </ b> G are not aligned and a groove 100 is generated. Not. Therefore, the shaft-like latch member 8 remains confined in the communicating portion between the through hole 43 of the inner cylinder 4 and the engagement groove 32 of the outer cylinder 3, and cannot be unlocked.

図１２〜２４は、この発明の第２実施例であるディスク錠装置の構成を示している。図示例のディスク錠装置も、鍵と錠本体との組み合わせから成り、図１４に鍵２の外観が、図１２、図１３および図１５〜２４に錠本体１の構成が、それぞれ示してある。   12 to 24 show the configuration of a disk locking device according to the second embodiment of the present invention. The illustrated disk lock device also includes a combination of a key and a lock body. FIG. 14 shows the appearance of the key 2 and FIGS. 12, 13 and 15 to 24 show the structure of the lock body 1.

図１４に示される鍵２は、全体が平板状をなし、鍵操作のためのつまみ部２０と、つまみ部２０より小さな幅であって錠本体１の前後の長さに応じた長さの鍵板部２１とが一体形成されている。前記鍵板部２１の板面は略矩形状をなし、鍵２を錠本体１へ挿入したとき、鍵板部２１の丸みのある先端部２５が後述する内筒４の基底部４０に形成された錐状穴４１に突き当たる。   The key 2 shown in FIG. 14 has a flat plate shape as a whole, and has a knob portion 20 for key operation and a width smaller than the knob portion 20 and corresponding to the length of the front and rear of the lock body 1. The plate portion 21 is integrally formed. The plate surface of the key plate portion 21 has a substantially rectangular shape, and when the key 2 is inserted into the lock body 1, a rounded tip portion 25 of the key plate portion 21 is formed on the base portion 40 of the inner cylinder 4 described later. It hits the conical hole 41.

鍵板部２１の両側辺には、長さが複数段階（図示例では２段階）のいずれかにそれぞれ設定された複数個（図示例では７個ずつ）の鍵山２６Ａ〜２６Ｇが長さ方向に列設されている。各鍵山２６Ａ〜２６Ｇは高さｈが同一に揃えられている。なお、図示例のものは、説明を容易にするため、第１，第４，第５，第７の各鍵山２６Ａ，２６Ｄ，２６Ｅ，２６Ｇの長さｄをｄ１（例えばｄ１＝１．２ｍｍ）、第２，第３，第６の各鍵山２６Ｂ，２６Ｃ，２６Ｆの長さｄをｄ２（例えばｄ２＝０．８ｍｍ）の２段階に設定しているが、その段階数を増せば、鍵違いを一層多く設定できる。   On both sides of the key plate portion 21, a plurality (seven in the illustrated example) of key piles 26 </ b> A to 26 </ b> G each having a length set in any one of a plurality of stages (two in the illustrated example) are arranged in the length direction. It is lined up. The key piles 26A to 26G have the same height h. In the illustrated example, for ease of explanation, the length d of each of the first, fourth, fifth, and seventh key piles 26A, 26D, 26E, and 26G is set to d1 (for example, d1 = 1.2 mm). The length d of each of the second, third, and sixth key piles 26B, 26C, and 26F is set to two stages d2 (for example, d2 = 0.8 mm). If the number of stages is increased, the key difference is increased. Can be set more.

第２の鍵山２６Ｂと第３の鍵山２６Ｃとの間、第３の鍵山２３Ｃと第４の鍵山２４Ｄとの間、および第５の鍵山２６Ｅと第６の鍵山２６Ｆとの間は、同じ長さｔ（例えばｔ＝１．０ｍｍ）の鍵溝２３である。   The same length is provided between the second key pile 26B and the third key pile 26C, between the third key pile 23C and the fourth key pile 24D, and between the fifth key pile 26E and the sixth key pile 26F. The key groove 23 is t (for example, t = 1.0 mm).

また、第１の鍵山２６Ａと第２の鍵山２６Ｂとの間、第４の鍵山２６Ｄと第５の鍵山２６Ｅとの間、および第６の鍵山２６Ｆと第７の鍵山２６Ｇとの間には、それぞれ長さｄ２の第１の平坦部２７Ｈ、第２の平坦部２７Ｉ、第３の平坦部２７Ｊが形成してある。これらの平坦部２７Ｈ〜２７Ｊの両隣は鍵溝２３，２３が連続しており、第１の鍵山２６Ａと第１の平坦部２７Ｈとの間、第１の平坦部２７Ｈと第２の鍵山２７Ｂとの間、第４の鍵山２６Ｄと第２の平坦部２７Ｉとの間、第２の平坦部２７Ｉと第５の鍵山２６Ｅとの間、第６の鍵山２６Ｆと第３の平坦部２７Ｊとの間、および第３の平坦部２７Ｊと第７の鍵山２６Ｇとの間は、長さｔ（例えばｔ＝１．０ｍｍ）が同じ鍵溝である。   Further, between the first key pile 26A and the second key pile 26B, between the fourth key pile 26D and the fifth key pile 26E, and between the sixth key pile 26F and the seventh key pile 26G, A first flat portion 27H, a second flat portion 27I, and a third flat portion 27J each having a length d2 are formed. On both sides of these flat portions 27H to 27J, key grooves 23, 23 are continuous, and between the first key portion 26A and the first flat portion 27H, the first flat portion 27H and the second key portion 27B, Between the fourth key pile 26D and the second flat portion 27I, between the second flat portion 27I and the fifth key pile 26E, and between the sixth key pile 26F and the third flat portion 27J. And the third flat portion 27J and the seventh key pile 26G are keyways having the same length t (for example, t = 1.0 mm).

各鍵山２６Ａ〜２６Ｇの長さｄは後述する第１のディスク５５の厚みｕに、また、各平坦部２７Ｈ〜２７Ｊの長さｄは後述する第２のディスク７５の厚みｖに、さらに、各鍵溝２３の長さｔは仕切板６５の厚みｗに、それぞれ対応している。   The length d of each key pile 26A-26G is the thickness u of the first disk 55 described later, the length d of each flat portion 27H-27J is the thickness v of the second disk 75 described later, The length t of the keyway 23 corresponds to the thickness w of the partition plate 65, respectively.

図１２および図１３に示す錠本体１は、例えば建物の玄関口などの扉１１（図２３に示す）に装着され、外筒３、内筒４、可動板８０、７枚の第１のディスク５５Ａ〜５５Ｇ，３枚の第２のディスク７５Ｈ〜７５Ｊ、１０枚の仕切板６５Ａ，６５Ｂ、丸軸状のラッチ部材８などで構成されている。   The lock body 1 shown in FIGS. 12 and 13 is mounted on a door 11 (shown in FIG. 23) such as a building entrance, and has an outer cylinder 3, an inner cylinder 4, a movable plate 80, and seven first discs. 55A to 55G, three second disks 75H to 75J, ten partition plates 65A and 65B, a round shaft-shaped latch member 8, and the like.

外筒３は、両端が開放された中空の円筒体であり、図１２および図１３に示すように、前面開口には可動板８０が回動自由に嵌挿されている。可動板８０上には前面カバー８８が被せられている。前面カバー８８は、例えばステンレスなどの金属材により形成される一面が開放された筒状のものであり、前面カバー８８の板面中央には嵌合孔８９が開設されている。可動板８０は、図１６および図１７に示すように、その前面カバー８８の側の側面に前記嵌合孔８９へ回動自由に嵌まる嵌合突部８１が突設してある。また可動板８０には、鍵２の鍵板部２１の断面形状に一致する鍵孔８２が直径線に沿って形成され、鍵孔８２に鍵２を挿入して回動させると、鍵２と一体に可動板８０が回動する。この鍵孔８２は、後述する各ディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊや仕切板６５Ａ，６５Ｂの鍵挿通孔５６，６６，７６と連通する。   The outer cylinder 3 is a hollow cylindrical body whose both ends are open, and as shown in FIGS. 12 and 13, a movable plate 80 is rotatably inserted in the front opening. A front cover 88 is put on the movable plate 80. The front cover 88 has a cylindrical shape with one surface formed of a metal material such as stainless steel, for example, and a fitting hole 89 is formed in the center of the plate surface of the front cover 88. As shown in FIGS. 16 and 17, the movable plate 80 is provided with a fitting projection 81 which is fitted to the fitting hole 89 so as to freely rotate on the side surface on the front cover 88 side. The movable plate 80 is formed with a key hole 82 corresponding to the cross-sectional shape of the key plate portion 21 of the key 2 along the diameter line. When the key 2 is inserted into the key hole 82 and rotated, The movable plate 80 rotates integrally. The key hole 82 communicates with the key insertion holes 56, 66, and 76 of the disks 55A to 55G and 75H to 75J, which will be described later, and the partition plates 65A and 65B.

可動板８０の外周面には、径方向に前記鍵孔８２と直交する一対の筒状の溝８３，８３が対角位置に形成されている。各溝８３には、前部コイルバネ８４を介して前部ボール８５が溝８３内を摺動可能に挿入されている。前部コイルバネ８４は、外筒３に向かう方向に前部ボール８５を付勢しており、可動板８０の回動により前部ボール８５は外筒３の内周面上を摺動する。   On the outer peripheral surface of the movable plate 80, a pair of cylindrical grooves 83, 83 perpendicular to the key hole 82 in the radial direction are formed at diagonal positions. A front ball 85 is slidably inserted into each groove 83 via a front coil spring 84. The front coil spring 84 urges the front ball 85 in the direction toward the outer cylinder 3, and the front ball 85 slides on the inner peripheral surface of the outer cylinder 3 by the rotation of the movable plate 80.

外筒３の内周面には、図１２および図１８に示すように、１８０度等角の位置にそれぞれ前部ボール８５が嵌り込むことが可能な凹部８６，８６が所定の長さだけ長さ方向に形成してある。各凹部８６は、後述する鍵操作の待機位置Ｒ０を設定するためのものであり、可動板８０の鍵孔８２が後述する待機状態にあるときに各前部ボール８５との位置が揃って嵌り込むような角度位置に、それぞれ設けられている。なお、各凹部８６の両側壁は前部ボール８５が凹部８６から脱出し易いように傾斜面８７になっている。   On the inner peripheral surface of the outer cylinder 3, as shown in FIGS. 12 and 18, recesses 86 and 86 into which the front balls 85 can be respectively fitted at 180 ° equiangular positions are long by a predetermined length. It is formed in the vertical direction. Each recess 86 is for setting a standby position R0 for a key operation to be described later, and when the key hole 82 of the movable plate 80 is in a standby state to be described later, the positions of the recesses 86 are aligned with the front balls 85. It is provided at each angular position where Both side walls of each recess 86 are inclined surfaces 87 so that the front ball 85 can easily escape from the recess 86.

図１２および図１３に戻って、外筒３の後面開口には、後面カバー３４が取り付けられている。後面カバー３４の板面中央には軸受孔３６が開設され、軸受孔３６には短筒状の駆動板３７が回動自由に支持されている。前記駆動板３７の外周面には、図２３に示すように、掛止め金具１０の基端部に形成された係合段部１０ａ，１０ｂに当たって掛止め金具１０を往復動させる駆動アーム１２が一体に取り付けられている。駆動板３７の内周面には後述する内筒４の駆動軸４８の板状端部４８ａが挿入される係合穴３９が形成してある。この係合穴３９は、所定の角度（図示例では、９０度）を挟んで対向する当接縁４９ａ，４９ｂを備えている。   Returning to FIGS. 12 and 13, a rear cover 34 is attached to the rear opening of the outer cylinder 3. A bearing hole 36 is formed in the center of the plate surface of the rear cover 34, and a short cylindrical drive plate 37 is rotatably supported in the bearing hole 36. As shown in FIG. 23, a driving arm 12 that reciprocates the latch metal 10 against the engaging step portions 10a and 10b formed at the base end of the latch metal 10 is integrally formed on the outer peripheral surface of the drive plate 37. Is attached. On the inner peripheral surface of the drive plate 37, an engagement hole 39 into which a plate-like end portion 48a of a drive shaft 48 of the inner cylinder 4 described later is inserted is formed. The engagement hole 39 includes contact edges 49a and 49b that face each other across a predetermined angle (90 degrees in the illustrated example).

前記掛止め金具１０は筐体の側の受け金具のラッチ溝（図示せず）と係脱するデッドボルトによって構成されるもので、前記駆動アーム１２の回動操作により往復動作し、この往復動作により前記受け金具のラッチ溝に係脱する。以下の説明において、この掛止め金具１０が受け金具のラッチ溝に係合することで施錠状態となり、受け金具のラッチ溝から脱出することで解錠状態となる。   The latch 10 is constituted by a dead bolt that engages with and disengages from a latch groove (not shown) of a receiving bracket on the side of the housing. To engage and disengage with the latch groove of the metal fitting. In the following description, the latching metal fitting 10 is brought into the locked state by engaging with the latch groove of the receiving metal fitting, and the unlocking state is brought out from the latch groove of the receiving metal fitting.

図１５は、鍵２の挿入を受け付ける待機状態を示しており、可動板８０の鍵孔８２は上下方向を向いている。この実施例では、錠本体１は、鍵２を待機状態から図１５に示すＸ方向に所定の角度ｂ（図示例ではｂ＝１１０度）回動することにより施錠動作を行うとともに、待機状態からＹ方向に所定の角度ｅ（図示例ではｅ＝１１０度）回動することにより解錠動作を行うようになっている。また、錠本体１に鍵２が挿入されたとき、この待機状態以外の状態では鍵２を錠本体１から抜き取ることができないようになっている。以下、鍵２を回動することができる前記角度ｂ，ｅを「鍵操作角度」という。   FIG. 15 shows a standby state in which the insertion of the key 2 is accepted, and the key hole 82 of the movable plate 80 faces in the vertical direction. In this embodiment, the lock body 1 performs a locking operation by rotating the key 2 from the standby state by a predetermined angle b (b = 110 degrees in the illustrated example) in the X direction shown in FIG. The unlocking operation is performed by rotating in the Y direction by a predetermined angle e (e = 110 degrees in the illustrated example). Further, when the key 2 is inserted into the lock body 1, the key 2 cannot be removed from the lock body 1 in a state other than this standby state. Hereinafter, the angles b and e with which the key 2 can be rotated are referred to as “key operation angles”.

図１５において、Ｒ０は待機位置、Ｒ１は施錠操作が可能となる施錠可能位置、Ｒ２は施錠操作の際に鍵操作の終端となる施錠位置を示している。また、Ｒ３は解錠操作が可能となる解錠可能位置、Ｒ４は解錠操作の際に鍵操作の終端となる解錠位置を示している。同図において、待機位置Ｒ０から施錠可能位置Ｒ１または解錠可能位置Ｒ３に至るまでは錠本体１の内筒４に対して鍵２が空転する。この実施例では、施錠のための操作角度（以下、「施錠操作角度」という。）ａおよび解錠のための操作角度（以下、「解錠操作角度」という。）ｄをともに２０度に設定している。施錠可能位置Ｒ１または解錠可能位置Ｒ３からさらに鍵２を回すと、内筒４が対応する各方向へ一体に回り出し、内筒４の駆動軸４８が回動する。   In FIG. 15, R0 is a standby position, R1 is a lockable position where the lock operation is possible, and R2 is a lock position where the key operation is terminated at the time of the lock operation. Further, R3 indicates an unlockable position where the unlocking operation is possible, and R4 indicates an unlocking position where the key operation is terminated at the time of the unlocking operation. In the figure, the key 2 is idled with respect to the inner cylinder 4 of the lock body 1 from the standby position R0 to the lockable position R1 or the unlockable position R3. In this embodiment, the operation angle for locking (hereinafter referred to as “locking operation angle”) a and the operation angle for unlocking (hereinafter referred to as “unlocking operation angle”) d are both set to 20 degrees. is doing. When the key 2 is further rotated from the lockable position R1 or the unlockable position R3, the inner cylinder 4 rotates integrally in the corresponding directions, and the drive shaft 48 of the inner cylinder 4 rotates.

待機状態において、前記解錠状態では、図２３（１）に示すように、前記駆動軸４８の板状端部４８ａは前記係合孔３９の一方の当接縁４９ａと当接している。内筒４が図１５に示すＸ方向へ９０度回動する間は、駆動軸４８の板状端部４８ａが駆動板３７を矢印Ｓの方向に回動させることにより、駆動アーム１２が内筒４と一体に回動する。駆動アーム１２が所定の角度（図示例では６０度）回動すると、図２３（２）に示すように、掛止め金具１０の係合段部１０ａに突き当たり、掛止め金具１０を往動させる。さらに駆動アーム１２が内筒４と一体に３０度回動すると、図２３（３）に示すように、掛止め金具１０の先端が筐体の側の受け金具のラッチ溝に係入して施錠状態となる。次に、この状態から内筒４が反対方向（図１５に示すＹ方向）へ９０度回動することにより、前記待機状態に戻るが、このとき前記駆動軸４８の板状端部４８ａは、図２３（４）に示すように、係合穴３９内で空転するため、駆動アーム１２は内筒４と一体に回動せず、施錠状態が保たれる。   In the standby state, in the unlocked state, as shown in FIG. 23 (1), the plate-like end portion 48 a of the drive shaft 48 is in contact with one contact edge 49 a of the engagement hole 39. While the inner cylinder 4 is rotated 90 degrees in the X direction shown in FIG. 15, the plate-like end portion 48a of the drive shaft 48 rotates the drive plate 37 in the direction of arrow S, so that the drive arm 12 is moved to the inner cylinder. 4 and rotate together. When the drive arm 12 is rotated by a predetermined angle (60 degrees in the illustrated example), as shown in FIG. 23 (2), the drive arm 12 abuts against the engaging step portion 10a of the latch metal 10, and the latch metal 10 is moved forward. Further, when the drive arm 12 is rotated 30 degrees integrally with the inner cylinder 4, as shown in FIG. 23 (3), the leading end of the latching metal fitting 10 is engaged with the latch groove of the receiving metal fitting on the housing side and locked. It becomes a state. Next, from this state, the inner cylinder 4 is rotated 90 degrees in the opposite direction (Y direction shown in FIG. 15) to return to the standby state. At this time, the plate-like end portion 48a of the drive shaft 48 is As shown in FIG. 23 (4), the drive arm 12 does not rotate integrally with the inner cylinder 4 because it idles in the engagement hole 39, and the locked state is maintained.

一方、施錠状態の待機状態においては、前記駆動軸４８の板状端部４８ａは、図２３（４）に示すように、係合孔３９の他方の当接縁４９ｂと当接している。内筒４が図１５に示すＹ方向へ９０度回動する間は、上記と同様に、駆動軸４８が駆動板３７を矢印Ｔの方向に回動させることにより、駆動アーム１２が内筒４と一体に回動する。駆動アーム１２が９０度回動すると、掛止め金具１０が復動し、筐体の側の受け金具のラッチ溝から脱出して解錠状態となり、扉１１を開くことが可能となる。次に、この状態から内筒４が反対方向（図１５に示すＸ方向）へ９０度回動することにより、前記待機状態に戻るが、このとき前記駆動軸４８の板状端部４８ａは係合穴３９内で空転するため、駆動アーム１２は内筒４と一体に回動せず、解錠状態が保たれる。   On the other hand, in the standby state in the locked state, the plate-like end portion 48a of the drive shaft 48 is in contact with the other contact edge 49b of the engagement hole 39 as shown in FIG. While the inner cylinder 4 is rotated 90 degrees in the Y direction shown in FIG. 15, the drive shaft 48 rotates the drive plate 37 in the direction of arrow T in the same manner as described above, whereby the drive arm 12 is moved to the inner cylinder 4. And rotate together. When the drive arm 12 rotates 90 degrees, the latching metal 10 moves backward, escapes from the latch groove of the receiving metal on the housing side, and is unlocked, and the door 11 can be opened. Next, from this state, the inner cylinder 4 is turned 90 degrees in the opposite direction (X direction shown in FIG. 15) to return to the standby state. At this time, the plate-like end portion 48a of the drive shaft 48 is engaged. Since the drive arm 12 idles in the joint hole 39, the drive arm 12 does not rotate integrally with the inner cylinder 4, and the unlocked state is maintained.

なお、扉１１の内面には、図２３に示すように、上記した鍵操作の終端位置Ｒ２，Ｒ４を設定するためのストッパー１３，１４が取り付けられている。駆動アーム１２が各ストッパー１３，１４に当たることで、駆動アーム１２、さらには内筒４の回動が規制され、これにより内筒４の回動が可能な角度ｃ，ｆが設定される。   As shown in FIG. 23, stoppers 13 and 14 for setting the end positions R2 and R4 of the key operation described above are attached to the inner surface of the door 11. When the drive arm 12 hits the stoppers 13 and 14, the rotation of the drive arm 12 and further the inner cylinder 4 is restricted, thereby setting the angles c and f at which the inner cylinder 4 can be rotated.

外筒３の内周面の所定角度位置には、図１３に示すように、ラッチ部材８の半分が嵌り込んで内筒４の回動を規制する状態を形成する係合溝３２が外筒３のほぼ全長にわたり長さ方向に形成してある。なお、図１９は図１３のＡ−Ａ線に沿う断面図であり、同図には第１のディスク５５Ｂが表されている。図２０は図１３のＢ−Ｂ線に沿う断面図であり、同図には第２のディスク７５Ｈが表されている。図２１は図１３のＣ−Ｃ線に沿う断面図であり、同図には仕切板６５Ａが表されている。図２２は図１３のＤ−Ｄ線に沿う断面図であり、同図には先頭位置の前部仕切板６５Ｂが表されている。
また、各図の（１）は待機状態を、（２）は鍵２を施錠操作角度ａだけ回したときの施錠可能時の状態を、（３）は鍵２を鍵操作角度ｂだけ回したときの終端時の状態を、それぞれ示す。 As shown in FIG. 13, an engagement groove 32 that forms a state in which half of the latch member 8 is fitted and restricts the rotation of the inner cylinder 4 is formed at a predetermined angular position on the inner peripheral surface of the outer cylinder 3. 3 is formed in the longitudinal direction over almost the entire length. FIG. 19 is a cross-sectional view taken along the line AA in FIG. 13 and shows the first disk 55B. FIG. 20 is a cross-sectional view taken along the line BB in FIG. 13, and the second disk 75H is shown in the same drawing. FIG. 21 is a cross-sectional view taken along the line CC of FIG. 13, and a partition plate 65A is shown in the same drawing. FIG. 22 is a cross-sectional view taken along the line DD in FIG. 13, and the front partition plate 65B at the head position is shown in the same drawing.
Moreover, (1) of each figure is a standby state, (2) is a state when the key 2 can be locked when the key 2 is turned by the locking operation angle a, and (3) is a key 2 turning the key 2 by the key operation angle b. The state at the time of termination is shown respectively.

図１９（１）に示すように、外筒３の係合溝３２と内筒４に形成された貫通孔４３との連通部分にラッチ部材８が位置して閉じ込められたとき、内筒４の回動を規制する状態が形成される。係合溝３２の両方の溝壁３３ａ，３３ｂは、ラッチ部材８が係合溝３２から脱出し易いように傾斜させている。   As shown in FIG. 19 (1), when the latch member 8 is positioned and confined in the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 formed in the inner cylinder 4, A state for restricting the rotation is formed. Both the groove walls 33a and 33b of the engagement groove 32 are inclined so that the latch member 8 can easily escape from the engagement groove 32.

内筒４は、図１２、図１３および図１９〜図２２に示すように、外筒３の内部に回動可能に嵌挿される筒壁部４２を備えている。この筒壁部４２の内部には、７枚の第１のディスク５５Ａ〜５５Ｇと３枚の第２のディスク７５Ｈ〜７５Ｊと１０枚の仕切板６５Ａ，６５Ｂとが積層した状態で嵌挿されている。仕切板６５Ａはディスク間に介在し、前部仕切板６５Ｂは先頭に位置する。筒壁部４２の後端部には基底部４０が一体形成されている。基底部４０の内面に前記錐状穴４１が形成され、基底部４０の外面に前記駆動軸４８が一体に突設されている。   As shown in FIGS. 12, 13, and 19 to 22, the inner cylinder 4 includes a cylindrical wall portion 42 that is rotatably inserted into the outer cylinder 3. In the cylindrical wall portion 42, seven first disks 55A to 55G, three second disks 75H to 75J, and ten partition plates 65A and 65B are stacked and inserted. Yes. The partition plate 65A is interposed between the disks, and the front partition plate 65B is positioned at the head. A base 40 is integrally formed at the rear end of the cylindrical wall 42. The conical hole 41 is formed on the inner surface of the base portion 40, and the drive shaft 48 projects integrally on the outer surface of the base portion 40.

内筒４の筒壁部４２には、鍵２の挿入を受け付ける待機状態で外筒３の係合溝３２と位置が揃って連通する貫通孔４３が長さ方向に形成されている。貫通孔４３は、筒壁部４２を貫通するものであり、施錠操作可能時には第１のディスク５５Ａ〜５５Ｇ、第２のディスク７５Ｈ〜７５Ｊ、仕切板６５Ａ、および前部仕切板６５Ｂの後述する凹欠部５７Ａ，６７，７７が一列に揃うことにより生成される施錠用の凹溝１００と連通する（図１９（２）、図２０（２）および図２１（２）参照）。また、貫通孔４３は、図示は省略するが、解錠操作可能時（内筒４が解錠操作角度ｄだけ矢印Ｔの方向へ回動したとき）には第１のディスク５５Ａ〜５５Ｇ、第２のディスク７５Ｈ〜７５Ｊ、仕切板６５Ａ、および前部仕切板６５Ｂの凹欠部５７Ｂ，６７，７７が一列に揃うことにより生成される解錠用の凹溝（図示せず）と連通する。   A through-hole 43 is formed in the length direction of the cylindrical wall portion 42 of the inner cylinder 4 so as to communicate with the engaging groove 32 of the outer cylinder 3 in the standby state in which the insertion of the key 2 is accepted. The through hole 43 penetrates the cylindrical wall portion 42, and when the locking operation is possible, the first disk 55A to 55G, the second disk 75H to 75J, the partition plate 65A, and the front partition plate 65B described later. The notches 57A, 67, 77 communicate with the locking groove 100 generated by aligning the notches 57A, 67, 77 (see FIGS. 19 (2), 20 (2), and 21 (2)). The through-hole 43 is not shown in the drawing, but when the unlocking operation is possible (when the inner cylinder 4 is rotated in the direction of the arrow T by the unlocking operation angle d), the first disks 55A to 55G, The two discs 75H to 75J, the partition plate 65A, and the recessed portions 57B, 67, and 77 of the front partition plate 65B communicate with a recess groove for unlocking (not shown) that is generated.

内筒４の筒壁部４２には、第１のディスク５５Ａ〜５５Ｇ、第２のディスク７５〜７５Ｊ、仕切板６５Ａ、および前部仕切板６５Ｂの外周部にそれぞれ一体形成された扇状の突片５９，７９，６９が係合する開放部４４が形成されており、開放部４４の両端４４ａ，４４ｂには、第１、第２の各ディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊ，各仕切板６５Ａ，６５Ｂの突片５９，６９，７９の両端が突き当たる。   Fan-shaped projecting pieces integrally formed on the outer peripheral portions of the first disks 55A to 55G, the second disks 75 to 75J, the partition plate 65A, and the front partition plate 65B, respectively, on the cylindrical wall portion 42 of the inner cylinder 4 59, 79, and 69 are formed with open portions 44, and first and second disks 55A to 55G, 75H to 75J, and partition plates 65A are provided at both ends 44a and 44b of the open portion 44, respectively. Both ends of the 65B protrusions 59, 69, and 79 abut.

内筒４の基底部４０の外周面には、図１２および図１３に示すように、径方向に貫通する貫通孔９１が形成されている。この貫通孔９１の内部には、後部コイルバネ９２を介して２個の後部ボール９３が摺動可能に支持されている。後部コイルバネ９２は、外筒３に向けて各後部ボール９３を付勢している。   As shown in FIGS. 12 and 13, a through hole 91 that penetrates in the radial direction is formed on the outer peripheral surface of the base portion 40 of the inner cylinder 4. Inside the through hole 91, two rear balls 93 are slidably supported via a rear coil spring 92. The rear coil spring 92 urges each rear ball 93 toward the outer cylinder 3.

内筒４の基底部４０と外筒３の内周面との間には、図２４に示すように、ガイドリング９４が嵌挿されている。内筒４の回動により各後部ボール９３はガイドリング９４の内周面上を摺動する。ガイドリング９４の内周面には、１８０度等角の位置にそれぞれ各後部ボール９３が嵌り込むことが可能な桶状の凹部９５，９５が形成してある。各凹部９５は、内筒４が前記待機状態にあるときに各後部ボール９３が嵌り込むような角度位置に、それぞれ設けられている。なお、各凹部９５の両側壁は、後部ボール９３が凹部９５から脱出し易いように傾斜させてある。
このように、内筒４が待機状態にあるときは、各後部ボール９３がガイドリング９４の各凹部９５に嵌り込んでいるから、鍵２を待機状態から施錠操作角度ａまたは解錠操作角度ｄだけそれぞれ回したときに、内筒４が鍵２とともに共回りするのが防止される。 As shown in FIG. 24, a guide ring 94 is fitted between the base portion 40 of the inner cylinder 4 and the inner peripheral surface of the outer cylinder 3. Each rear ball 93 slides on the inner peripheral surface of the guide ring 94 by the rotation of the inner cylinder 4. On the inner peripheral surface of the guide ring 94, bowl-shaped concave portions 95, 95 into which the respective rear balls 93 can be respectively fitted at 180 ° equiangular positions are formed. Each recess 95 is provided at an angular position where each rear ball 93 is fitted when the inner cylinder 4 is in the standby state. Note that both side walls of each recess 95 are inclined so that the rear ball 93 can easily escape from the recess 95.
Thus, when the inner cylinder 4 is in the standby state, each rear ball 93 is fitted in each recess 95 of the guide ring 94, so that the lock operation angle a or the unlocking operation angle d of the key 2 from the standby state. The inner cylinder 4 is prevented from co-rotating with the key 2 when each is rotated.

７枚の第１のディスク５５Ａ〜５５Ｇ、３枚の第２のディスク７５Ｈ〜７５Ｊ、１０枚の仕切板６５Ａ，６５Ｂは、内筒４の筒壁部４２の内径にほぼ一致する直径を有し、外周部には外筒３の内径にほぼ一致する直径を有する扇状の突片５９，６９，７９がそれぞれ一体形成されている。   The seven first disks 55 </ b> A to 55 </ b> G, the three second disks 75 </ b> H to 75 </ b> J, and the ten partition plates 65 </ b> A and 65 </ b> B have a diameter that substantially matches the inner diameter of the cylindrical wall portion 42 of the inner cylinder 4. Fan-shaped projecting pieces 59, 69, 79 having a diameter substantially matching the inner diameter of the outer cylinder 3 are integrally formed on the outer peripheral portion.

第１のディスク５５Ａ〜５５Ｇおよび第２のディスク７５Ｈ〜７５Ｊの各突片５９，７９は、図１９および図２０に示されるように、各ディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊが内筒４内で待機状態から前記の施錠操作角度ａおよび解錠操作角度ｄだけ内筒４に対してそれぞれ回動可能なように、前記筒壁部４２に形成された開放部４４の開き角度θ１より小さな角度θ２（θ２＝θ１−ａ−ｄ）に形成されている。   As shown in FIGS. 19 and 20, the projecting pieces 59 and 79 of the first disks 55 </ b> A to 55 </ b> G and the second disks 75 </ b> H to 75 </ b> J are arranged so that the disks 55 </ b> A to 55 </ b> G and 75 </ b> H to 75J are inside the inner cylinder 4. An angle θ2 that is smaller than the opening angle θ1 of the opening 44 formed on the cylindrical wall portion 42 so as to be rotatable with respect to the inner cylinder 4 by the locking operation angle a and the unlocking operation angle d from the standby state. (Θ2 = θ1-ad).

各仕切板６５Ａ，６５Ｂの各突片６９は、図２１および図２２に示されるように、各仕切板６５Ａ，６５Ｂが内筒４内で回動しないように前記開放部４４の開き角度θ１と一致する角度θ３（θ３＝θ１）に形成されている。   As shown in FIGS. 21 and 22, the protrusions 69 of the partition plates 65 </ b> A and 65 </ b> B have an opening angle θ <b> 1 of the opening 44 so that the partition plates 65 </ b> A and 65 </ b> B do not rotate within the inner cylinder 4. The matching angle θ3 (θ3 = θ1) is formed.

第１のディスク５５Ａ〜５５Ｇ、第２のディスク７５〜７５Ｊ、仕切板６５Ａ，６５Ｂの板面中央には、鍵２の挿入を受け付ける待機状態で一連に揃って鍵２の挿脱が可能となる鍵挿通孔５６，６６，７６がそれぞれ同一形状に形成されている。各鍵挿通孔５６，６６，７６は、対向する一対の孔側縁に鍵２の各鍵山２６Ａ〜２６Ｇの高さｈに応じた高さの段部５８ａ，５８ｂ，６８ａ，６８ｂ，７８ａ，７８ｂがそれぞれ形成されている。各段部５８ａ，５８ｂ，６８ａ，６８ｂ，７８ａ，７８ｂは、鍵２の各鍵山２６Ａ〜２６Ｇに当接するが、鍵山間の鍵溝２３の部分は当接せずに各鍵挿通孔５６，６６，７６内を回動する。   At the center of the plate surfaces of the first disks 55A to 55G, the second disks 75 to 75J, and the partition plates 65A and 65B, a key that allows the key 2 to be inserted and removed in a series in a standby state in which the insertion of the key 2 is accepted. The insertion holes 56, 66, and 76 are formed in the same shape. Each of the key insertion holes 56, 66, 76 has stepped portions 58 a, 58 b, 68 a, 68 b, 78 a, 78 b having heights corresponding to the height h of the key ridges 26 </ b> A to 26 </ b> G of the key 2. Are formed respectively. Each of the step portions 58a, 58b, 68a, 68b, 78a, 78b abuts on the key ridges 26A to 26G of the key 2, but the portion of the key groove 23 between the key ridges does not abut, and the key insertion holes 56, 66 , 76 is rotated.

第１のディスク５５Ａ〜５５Ｇ、第２のディスク７５〜７５Ｊおよび仕切板６５Ａは、外周縁をＵ字状に切り欠いて形成された凹欠部５７Ａ，５７Ｂ，６７，７７を有している。
第１のディスク５５Ａ〜５５Ｇの一方の各凹欠部５７Ａは前記待機状態に内筒４の貫通孔４３に対して施錠操作角度ａだけ回転方向Ｓの後方に位置ずれした角度位置に、他方の各凹欠部５７Ｂは前記待機状態に内筒４の貫通孔４３に対して解錠操作角度ｄだけ回転方向Ｔの後方に位置ずれした角度位置に、それぞれ設けられている（図１９（１）参照）。また、第２のディスク７５Ｈ〜７５Ｊの凹欠部７７および仕切板６５Ａの凹欠部６７は、前記待機状態に内筒４の貫通孔４３と位置が揃って連通するような角度位置に（図２０（１）、図２１（１）参照）、それぞれ設けられている。 The first disks 55A to 55G, the second disks 75 to 75J, and the partition plate 65A have recesses 57A, 57B, 67, and 77 formed by cutting out the outer peripheral edge in a U shape.
One of the notches 57A of each of the first disks 55A to 55G is positioned at an angular position shifted backward in the rotational direction S by the locking operation angle a with respect to the through hole 43 of the inner cylinder 4 in the standby state. Each recess 57B is provided at an angular position displaced backward in the rotational direction T by the unlocking operation angle d with respect to the through hole 43 of the inner cylinder 4 in the standby state (FIG. 19 (1)). reference). Further, the recessed portions 77 of the second disks 75H to 75J and the recessed portions 67 of the partition plate 65A are at angular positions such that they are aligned with and communicate with the through holes 43 of the inner cylinder 4 in the standby state (see FIG. 20 (1) and FIG. 21 (1)), respectively.

第１のディスク５５Ａ〜５５Ｇの各凹欠部５７Ａと第２のディスク７５Ｈ〜７５Ｊの各凹欠部６７と仕切板６５Ａの各凹欠部７７とが全て一列に揃うことにより生成される施錠用の凹溝１００と、内筒４の貫通孔４３とが連通したとき（図１９（２）、図２０（２）、図２１（２）参照）、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に閉じ込められていたラッチ部材８が前記凹溝１００と内筒４の貫通孔４３との連通部分へ移動可能となるため、内筒４の回動が許容されて施錠操作が可能な状態となる。また、図示は省略するが、第１のディスク５５Ａ〜５５Ｇの各凹欠部５７Ｂと第２のディスク７５Ｈ〜７５Ｊの各凹欠部６７と仕切板６５Ａの各凹欠部７７とが全て一列に揃うことにより生成される解錠用の凹溝と、内筒４の貫通孔４３とが連通したとき、同様に内筒４の回動が許容されて、解錠操作が可能な状態となる。
なお、前部仕切板６５Ｂには凹欠部６７に代えて突部９９が形成されており、この突部９９によりラッチ部材８の軸方向の移動を規制している。 For locking generated by the recesses 57A of the first disks 55A to 55G, the recesses 67 of the second disks 75H to 75J, and the recesses 77 of the partition plate 65A all aligned. When the concave groove 100 and the through hole 43 of the inner cylinder 4 communicate with each other (see FIGS. 19 (2), 20 (2) and 21 (2)), the engaging groove 32 and the inner cylinder of the outer cylinder 3 Since the latch member 8 confined in the communication portion with the four through holes 43 can move to the communication portion between the concave groove 100 and the through hole 43 of the inner cylinder 4, the inner cylinder 4 is allowed to rotate. The lock operation is possible. In addition, although not shown in the drawing, the respective recessed portions 57B of the first disks 55A to 55G, the recessed portions 67 of the second disks 75H to 75J, and the recessed portions 77 of the partition plate 65A are all in a line. When the concave groove for unlocking generated by aligning and the through hole 43 of the inner cylinder 4 communicate with each other, the inner cylinder 4 is similarly allowed to rotate and can be unlocked.
Note that a protrusion 99 is formed on the front partition plate 65B instead of the recess 67, and the protrusion 99 restricts the movement of the latch member 8 in the axial direction.

前記ラッチ部材８は、内筒４の筒壁部４２の長さよりわずかに短い丸軸体であって、外筒３の内周位置に第１、第２の各ディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊや仕切板６５Ａと直交させて配備されている。   The latch member 8 is a round shaft that is slightly shorter than the length of the cylindrical wall portion 42 of the inner cylinder 4, and the first and second disks 55 </ b> A to 55 </ b> G and 75 </ b> H to 75 </ b> J are disposed at the inner peripheral position of the outer cylinder 3. Further, it is arranged perpendicular to the partition plate 65A.

第１のディスク５５Ａ〜５５Ｇおよび第２のディスク７５Ｈ〜７５Ｊは、それぞれの厚みが複数段階（この実施例では２段階）に設定されており、第１のディスク５５Ａ〜５５Ｇは鍵２の対応する鍵山２６Ａ〜２６Ｇの長さｄと一致する厚みｕを有し、第２のディスク７５Ｈ〜７５Ｊは鍵２の対応する平坦部２７Ｈ〜２７Ｊの長さｄと一致する厚みｖを有している。   The thicknesses of the first disks 55A to 55G and the second disks 75H to 75J are set in a plurality of stages (two stages in this embodiment), and the first disks 55A to 55G correspond to the key 2. The second disk 75H to 75J has a thickness v corresponding to the length d of the corresponding flat portion 27H to 27J of the key 2. The thickness u matches the length d of the key piles 26A to 26G.

この実施例では、第１のディスク５５Ａ〜５５Ｇのうち、５５Ａ，５５Ｄ，５５Ｅ，５Ｇの各ディスクは第１，第４，第５，第７の各鍵山２６Ａ，２６Ｄ，２６Ｅ，２６Ｇの長さｄ１と一致する厚みｕ１（例えばｕ１＝１．２ｍｍ）に、５５Ｂ，５５Ｃ，５５Ｆの各ディスクは第２，第３，第６の各鍵山２６Ｂ，２６Ｃ，２６Ｆの長さｄ２と一致する厚みｕ２（例えばｕ２＝０．８ｍｍ）に、それぞれ設定されている。また、第２のディスク７５Ｈ〜７５Ｊは第１〜第３の各平坦部２７Ｈ〜２７Ｊの長さｄ２と一致する厚みｖ２（例えばｖ２＝０．８ｍｍ）に、それぞれ設定されている。
また、各仕切板６５Ａは、鍵２の鍵山間の鍵溝２３の長さｔと一致する厚みｗ（例えばｗ＝１．０ｍｍ）を有している。なお、前部仕切板６５Ｂの厚みは仕切板６５Ａの厚みｗより小さな値に設定されている。 In this embodiment, among the first disks 55A to 55G, the 55A, 55D, 55E, and 5G disks have the lengths of the first, fourth, fifth, and seventh key mountains 26A, 26D, 26E, and 26G. The thickness u2 corresponding to the length d2 of each of the second, third, and sixth key piles 26B, 26C, and 26F is equal to the thickness u1 (for example, u1 = 1.2 mm) corresponding to d1. (For example, u2 = 0.8 mm). The second disks 75H to 75J are set to thicknesses v2 (for example, v2 = 0.8 mm) that match the length d2 of the first to third flat portions 27H to 27J.
Each partition plate 65A has a thickness w (for example, w = 1.0 mm) that matches the length t of the keyway 23 between the key piles of the key 2. The thickness of the front partition plate 65B is set to a value smaller than the thickness w of the partition plate 65A.

上記した第２実施例のディスク錠装置において、錠本体１が待機状態にあるとき、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分にラッチ部材８が位置し、内筒４は回動が規制されている（図１９（１）、図２０（１）、図２１（１）、図２２（１）参照）。この待機状態では、各ディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊの鍵挿通孔５６，７６と各仕切板６５Ａ，６５Ｂの鍵挿通孔６６とが一連に揃って鍵２を挿入することが可能である。また、第２のディスク７５Ｈ〜７５Ｊの凹欠部７７および各仕切板６５Ａの凹欠部６７は内筒４の貫通孔４３と連通しているが（図２０（１）、図２１（１）参照）、第１のディスク５５Ａ〜５５Ｇの凹欠部５７Ａ，５７Ｂは内筒４の貫通孔４３と位置がずれている（図１９（１）参照）。このため、ラッチ部材８は外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に位置し、閉じ込められた状態に保持される。   In the disk locking device of the second embodiment described above, when the lock body 1 is in the standby state, the latch member 8 is located at the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4, The inner cylinder 4 is restricted from turning (see FIGS. 19 (1), 20 (1), 21 (1), and 22 (1)). In this standby state, it is possible to insert the key 2 with the key insertion holes 56 and 76 of the disks 55A to 55G and 75H to 75J and the key insertion holes 66 of the partition plates 65A and 65B aligned in series. Moreover, although the recessed part 77 of the 2nd discs 75H-75J and the recessed part 67 of each partition plate 65A are connected with the through-hole 43 of the inner cylinder 4 (FIG. 20 (1), FIG. 21 (1). The recessed portions 57A and 57B of the first disks 55A to 55G are displaced from the through holes 43 of the inner cylinder 4 (see FIG. 19A). For this reason, the latch member 8 is located in a communicating portion between the engaging groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 and is held in a confined state.

待機状態の錠本体１に適正な鍵２を挿入すると、鍵２の各鍵山２６Ａ〜２６Ｇは対応する第１のディスク５５Ａ〜５５Ｇの位置に位置し、また、各平坦部２７Ｈ〜２７Ｊは対応する第２のディスク７５Ｈ〜７５Ｊの位置に位置し、さらに、鍵山間の各鍵溝２３は各仕切板６５Ａの位置に位置する（図１３参照）。   When an appropriate key 2 is inserted into the lock main body 1 in the standby state, the key piles 26A to 26G of the key 2 are positioned at the positions of the corresponding first disks 55A to 55G, and the flat portions 27H to 27J correspond. It is located at the position of the second disks 75H to 75J, and each keyway 23 between the key mountains is located at the position of each partition plate 65A (see FIG. 13).

挿入された鍵２は、各鍵山２６Ａ〜２６Ｇが第１のディスク５５Ａ〜５５Ｇの鍵挿通孔５６の段部５８ａ，５８ｂにそれぞれ当たる。一方、各平端部２７Ｈ〜２７Ｊは第２のディスク７５Ｈ〜７５Ｊの鍵挿通孔７６の段部７８ａ，７８ｂに当たらず、また鍵山間の各鍵溝２３の位置では各仕切板６５Ａの鍵挿通孔６６の段部６６ａ，６６ｂに当たらないので、鍵２を例えば施錠方向Ｓへ回すと、第１のディスク５Ａ〜５５Ｇは鍵山２６Ａ〜２６Ｇによって引っ掛けられ、一方、第２のディスク７５Ｈ〜７５Ｊや各仕切板６５Ａ，６５Ｂに対しては鍵２は鍵挿通孔７６，６６内で空転するため、第１のディスク５Ａ〜５５Ｇだけが鍵２と一体に施錠操作角度ａだけ回動する。その結果、第１のディスク５Ａ〜５５Ｇの凹欠部５７Ａと第２のディスク７５Ｈ〜７５Ｊの凹欠部７７と仕切板６５Ａの凹欠部６７とが一列に揃って施錠用の凹溝１００が生成され、この凹溝１００は内筒４の貫通孔４３と連通するので、丸軸状のラッチ部材８は内筒４の貫通孔４３と施錠用の係合溝１００との連通部分へ移動可能となり、施錠操作が可能な状態となる（図１９（２）、図２０（２）、図２１（２）参照）。   In the inserted key 2, the key piles 26A to 26G respectively contact the step portions 58a and 58b of the key insertion holes 56 of the first disks 55A to 55G. On the other hand, the flat end portions 27H to 27J do not hit the step portions 78a and 78b of the key insertion holes 76 of the second disks 75H to 75J, and the key insertion holes of the partition plates 65A are located at the key grooves 23 between the key mountains. 66, when the key 2 is rotated in the locking direction S, for example, the first disks 5A to 55G are hooked by the key piles 26A to 26G, while the second disks 75H to 75J Since the key 2 is idled in the key insertion holes 76 and 66 with respect to the partition plates 65A and 65B, only the first disks 5A to 55G rotate together with the key 2 by the locking operation angle a. As a result, the recessed portions 57A of the first disks 5A to 55G, the recessed portions 77 of the second disks 75H to 75J, and the recessed portions 67 of the partition plate 65A are aligned to form the locking recessed groove 100. Since the concave groove 100 is generated and communicates with the through hole 43 of the inner cylinder 4, the round shaft-shaped latch member 8 can move to the communication portion between the through hole 43 of the inner cylinder 4 and the engaging groove 100 for locking. Thus, the locking operation is possible (see FIGS. 19 (2), 20 (2), and 21 (2)).

この状態からさらに、鍵２を回すと、外筒３の係合溝３２と内筒４の貫通孔４３との連通部分に位置していたラッチ部材８が傾斜する溝壁３３に沿って係合溝３２より押し出されて内筒４の貫通孔４３と施錠用の凹溝１００との連通部分へ移動するので、内筒４は外筒３との係わりが切れて束縛から解放され、全てのディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊと全ての仕切板６５Ａ，６５Ｂと内筒４とが鍵２と一体に所定の角度ｃ（９０度）回動する（図１９（３）、図２０（３）、図２１（３）、図２２（３）参照）。これにより、駆動アーム１２が内筒４と一体に９０度回動するため、掛止め金具１０が筐体の側の受け金具のラッチ溝に係入して施錠状態となる。   When the key 2 is further rotated from this state, the latch member 8 located at the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4 is engaged along the groove wall 33 inclined. Since it is pushed out of the groove 32 and moves to the communicating portion between the through hole 43 of the inner cylinder 4 and the locking groove 100, the inner cylinder 4 is released from the restraint due to the engagement with the outer cylinder 3, and all the discs 55A to 55G, 75H to 75J, all the partition plates 65A and 65B, and the inner cylinder 4 rotate together with the key 2 by a predetermined angle c (90 degrees) (FIGS. 19 (3) and 20 (3), (Refer FIG. 21 (3) and FIG. 22 (3)). As a result, the drive arm 12 is rotated 90 degrees integrally with the inner cylinder 4, so that the latching metal fitting 10 is engaged with the latch groove of the receiving metal fitting on the housing side and is locked.

そして、この状態から鍵２を反対方向（解錠方向Ｔ）へ９０度回すと、内筒４は全てのディスク５５Ａ〜５５Ｇ，７５Ｈ〜７５Ｊと全ての仕切板６５Ａ，６５Ｂとともに鍵２と一体に回動して外筒３の係合溝３２と内筒４の貫通孔４３とが連通し、ラッチ部材８は外筒３の係合溝３２と内筒４の貫通孔４３との連通部分へ移動可能となる（図１９（２）、図２０（２）、図２１（２）、図２２（２）参照）。この状態からさらに、鍵２を２０度回すと、ラッチ部材８は施錠用の凹溝１００より押し出されて外筒３の係合溝３２と内筒４の貫通孔４３との連通部分へ移動するので、第１のディスク５５Ａ〜５５Ｇだけが鍵２とともに回動し、前記待機状態に戻る（図１９（１）、図２０（１）、図２１（１）、図２２（１）参照）。このとき駆動アーム１２は内筒４と一体に回動しないので、施錠状態が保たれる。   When the key 2 is turned 90 degrees in the opposite direction (unlocking direction T) from this state, the inner cylinder 4 is integrated with the key 2 together with all the disks 55A to 55G and 75H to 75J and all the partition plates 65A and 65B. By rotating, the engagement groove 32 of the outer cylinder 3 communicates with the through hole 43 of the inner cylinder 4, and the latch member 8 moves to the communication portion between the engagement groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4. It becomes possible to move (see FIGS. 19 (2), 20 (2), 21 (2), and 22 (2)). When the key 2 is further rotated 20 degrees from this state, the latch member 8 is pushed out of the locking concave groove 100 and moves to a communication portion between the engaging groove 32 of the outer cylinder 3 and the through hole 43 of the inner cylinder 4. Therefore, only the first disks 55A to 55G rotate with the key 2 and return to the standby state (see FIGS. 19 (1), 20 (1), 21 (1), and 22 (1)). At this time, since the drive arm 12 does not rotate integrally with the inner cylinder 4, the locked state is maintained.

なお、待機状態から鍵２を解錠方向Ｔへ回すときや解錠状態から鍵２を反対方向へ待機状態まで戻すときの錠本体１の動作は、上記した施錠方向Ｓへ回したときの錠動作と同様であるので、ここでは詳細な説明は省略する。   The operation of the lock body 1 when the key 2 is turned in the unlocking direction T from the standby state or when the key 2 is returned from the unlocked state to the standby state in the opposite direction is the lock when the key 2 is turned in the locking direction S described above. Since this is the same as the operation, detailed description is omitted here.

また、待機状態では、適正な鍵２だけでなく不適正な鍵も鍵孔８２より錠本体１の内部へ挿入することができ、適正な鍵２は前記待機状態からいずれの方向へも所定の角度回すことが可能であるが、不適正な鍵は前記待機状態からいずれの方向に回そうとしても、待機状態のままで回すことができないのは、上記した第１実施例と同様である。
さらに、第２のディスク７５Ｈ〜７５Ｊを設けることにより、ピッキングが防止可能となるのも、上記した第１実施例と同様である。 Further, in the standby state, not only the proper key 2 but also an inappropriate key can be inserted into the lock body 1 through the key hole 82, and the proper key 2 is predetermined in any direction from the standby state. Although it is possible to rotate the angle, an improper key cannot be rotated in the standby state no matter which direction it is rotated from the standby state, as in the first embodiment described above.
Furthermore, the provision of the second disks 75H to 75J makes it possible to prevent picking, as in the first embodiment described above.

この発明の一実施例である錠本体に適正な鍵を挿入したときの内部構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows an internal structure when a suitable key is inserted in the lock main body which is one Example of this invention. 適正な鍵の外観を示す平面図と正面図である。It is the top view and front view which show the external appearance of a suitable key. 不適正な鍵の外観を示す平面図である。It is a top view which shows the external appearance of an improper key. 錠本体の正面図である。It is a front view of a lock body. 回動規制板の動作を示す錠本体の背面図である。It is a rear view of the lock body which shows operation | movement of a rotation control board. 鍵操作時の各状態を示す図１のＡ−Ａ線に沿う断面図である。It is sectional drawing in alignment with the AA of FIG. 1 which shows each state at the time of key operation. 鍵操作時の各状態を示す図１のＢ−Ｂ線に沿う断面図である。It is sectional drawing which follows each BB line of FIG. 1 which shows each state at the time of key operation. 鍵操作時の各状態を示す図１のＣ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line | wire of FIG. 1 which shows each state at the time of key operation. 鍵操作時の各状態を示す図１のＤ−Ｄ線に沿う断面図である。It is sectional drawing which follows the DD line | wire of FIG. 1 which shows each state at the time of key operation. この発明の一実施例である錠本体に不適正な鍵を挿入したときの内部構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows an internal structure when an inadequate key is inserted in the lock main body which is one Example of this invention. 図１０のＥ−Ｅ線に沿う断面図である。It is sectional drawing which follows the EE line | wire of FIG. この発明の他の実施例である錠本体に適正な鍵を挿入したときの内部構造を示す横断面図である。It is a cross-sectional view which shows an internal structure when a suitable key is inserted in the lock main body which is another Example of this invention. この発明の他の実施例である錠本体に適正な鍵を挿入したときの内部構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows an internal structure when a suitable key is inserted in the lock main body which is another Example of this invention. 適正な鍵の外観を示す平面図と正面図である。It is the top view and front view which show the external appearance of a suitable key. 錠本体の正面図である。It is a front view of a lock body. 可動板の平面図である。It is a top view of a movable plate. 図１６のＥ−Ｅ線に沿う断面図である。It is sectional drawing which follows the EE line | wire of FIG. 図１２のＦ−Ｆ線に沿う断面図である。It is sectional drawing which follows the FF line | wire of FIG. 図１３のＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line of FIG. 図１３のＢ−Ｂ線に沿う断面図である。It is sectional drawing which follows the BB line of FIG. 図１３のＣ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line of FIG. 図１３のＤ−Ｄ線に沿う断面図である。It is sectional drawing which follows the DD line | wire of FIG. 錠本体の施錠および解錠動作を示す説明図である。It is explanatory drawing which shows locking and unlocking operation | movement of a lock main body. 図１３のＧ−Ｇ線に沿う断面図である。It is sectional drawing which follows the GG line of FIG.

符号の説明Explanation of symbols

１ 錠本体
２ 鍵
３ 外筒
４ 内筒
５Ａ〜５Ｅ，５５Ａ〜５５Ｇ 第１のディスク
６Ａ，６Ｂ，６５Ａ，６５Ｂ 仕切板
７Ｆ，７Ｇ，７５Ｈ〜７５Ｊ 第２のディスク
８ ラッチ部材
１０ 掛止め金具
２２Ａ〜２２Ｅ，２６Ａ〜２６Ｇ 鍵山
２３ 鍵溝
２４Ｆ，２４Ｇ，２７Ｈ〜２７Ｊ 平坦部
３２ 係合溝
４３ 貫通孔
４５ ネジ軸
４８ 駆動軸
５０，６０，７０，５６，６６，７６ 鍵挿通孔
５１，６１，７１，５８ａ，５８ｂ，６８ａ，６８ｂ，７８ａ，７８ｂ 段部
５４，６４，７４，５７Ａ，５７Ｂ，６７，７７ 凹欠部
１００ 凹溝 DESCRIPTION OF SYMBOLS 1 Lock body 2 Key 3 Outer cylinder 4 Inner cylinder 5A-5E, 55A-55G 1st disk 6A, 6B, 65A, 65B Partition plate 7F, 7G, 75H-75J 2nd disk 8 Latch member 10 Latching bracket 22A -22E, 26A-26G Key mountain 23 Key groove 24F, 24G, 27H-27J Flat part 32 Engagement groove 43 Through hole 45 Screw shaft 48 Drive shaft 50, 60, 70, 56, 66, 76 Key insertion hole 51, 61, 71, 58a, 58b, 68a, 68b, 78a, 78b Stepped portion 54, 64, 74, 57A, 57B, 67, 77 Recessed portion 100 Recessed groove

Claims (6)

長さが複数段階のいずれかに設定される矩形状の鍵山が高さを揃えて複数個列設された鍵と、前記鍵を挿入して回動することにより施錠または解錠の動作を行って掛止め金具を連動させる錠本体との組み合わせから成り、
前記錠本体は、内周面に係合溝が長さ方向に沿って形成されている外筒と、
外筒内に回動可能に支持され外筒の後方へ突出する掛止め金具の駆動軸を備えるとともに鍵の挿入を受け付ける待機状態のときに外筒の係合溝と連通する貫通孔が形成されている内筒と、
挿入された鍵の各鍵山に対応する内筒内の各位置に内筒に対して少なくとも一方の方向に設定角度だけ回動可能に嵌挿され、外周縁には前記待機状態のときは内筒の貫通孔に対して設定角度だけ位置ずれし設定角度回動したときに内筒の貫通孔と連通する凹欠部が少なくとも１個形成されている複数枚のディスクと、
内筒内のディスク間に内筒に対して回動しない状態で嵌挿され、外周縁には内筒の貫通孔と連通する凹欠部が形成されている複数枚の仕切板と、
外筒の係合溝と内筒の貫通孔との連通部分に位置するとき内筒の回動を規制する状態を形成し、全ディスクの凹欠部と全仕切板の凹欠部とが一列に揃うことにより生成される凹溝と内筒の貫通孔との連通部分に位置するとき内筒の回動を許容する状態を形成する軸状のラッチ部材とを含んでおり、
各ディスクは、前記の対応する鍵山の長さと一致する厚みを有し、各仕切板は、鍵山間の鍵溝の長さと一致する厚みを有し、各ディスクおよび各仕切板の板面には前記待機状態のときに一連に揃って鍵の挿脱が可能となる鍵挿通孔が形成されるとともに、各鍵挿通孔の孔周縁には鍵の回動により鍵山の部分には当接するが鍵山間の鍵溝の部分には当接しない段部が形成されて成るディスク錠装置。 A rectangular key pile whose length is set in any one of a plurality of stages is arranged in a row, and a lock or unlocking operation is performed by inserting and rotating the key. It consists of a combination with a lock body that interlocks the latch bracket,
The lock body has an outer cylinder in which an engagement groove is formed along the length direction on the inner peripheral surface;
A through-hole is formed that includes a drive shaft for a latching metal that is rotatably supported in the outer cylinder and protrudes toward the rear of the outer cylinder, and communicates with the engaging groove of the outer cylinder in a standby state for accepting key insertion. An inner cylinder,
At each position in the inner cylinder corresponding to each key pile of the inserted key, the inner cylinder is fitted so as to be rotatable at a set angle in at least one direction with respect to the inner cylinder, and the inner cylinder is placed on the outer peripheral edge in the standby state. A plurality of discs formed with at least one recessed portion communicating with the through hole of the inner cylinder when the set angle is displaced by a set angle with respect to the through hole of
A plurality of partition plates that are inserted between the discs in the inner cylinder without rotating relative to the inner cylinder, and the outer peripheral edge is formed with a recessed portion that communicates with the through hole of the inner cylinder;
Forms a state that restricts the rotation of the inner cylinder when it is located at the communication portion between the engagement groove of the outer cylinder and the through hole of the inner cylinder, and the notches of all the discs and the notches of all the partition plates form a line A shaft-shaped latch member that forms a state that allows rotation of the inner cylinder when positioned at a communicating portion between the concave groove generated by aligning with the through-hole of the inner cylinder,
Each disk has a thickness that matches the length of the corresponding key pile, and each partition plate has a thickness that matches the length of the keyway between the key rings. A key insertion hole is formed so that the keys can be inserted and removed in a row in the standby state, and the periphery of each key insertion hole comes into contact with the key ring portion by the rotation of the key. A disk locking device in which a step portion that does not contact the key groove portion is formed. 前記内筒は、前記待機状態から一方の方向へ決められた角度だけ回動することが可能であるとともに、前記内筒の駆動軸には、内筒の正逆各方向の回動に連動するように、前記掛止め金具が設けられている請求項１に記載されたディスク錠装置。   The inner cylinder can be rotated by an angle determined in one direction from the standby state, and the drive shaft of the inner cylinder is interlocked with the rotation of the inner cylinder in forward and reverse directions. Thus, the disk locking device according to claim 1, wherein the latching metal fitting is provided. 前記内筒は、前記待機状態から正逆各方向へそれぞれ決められた角度だけ回動することが可能であるとともに、前記内筒の駆動軸には、内筒の正逆各方向の回動に連動するように、かつ内筒が回動方向を変えた後は前記の角度だけ内筒が空転するように、前記掛止め金具が設けられている請求項１に記載されたディスク錠装置。   The inner cylinder can be rotated from the standby state by a predetermined angle in each of the forward and reverse directions, and the inner cylinder drive shaft can be rotated in the forward and reverse directions of the inner cylinder. 2. The disk locking device according to claim 1, wherein the latching metal fitting is provided so that the inner cylinder rotates idly by the angle after the inner cylinder changes its rotation direction so as to be interlocked. 前記鍵は、鍵山間の鍵溝が同じ長さに設定されるとともに、全ての仕切板は、同じ厚みに形成されている請求項１〜３のいずれかに記載されたディスク錠装置。   The disk lock device according to any one of claims 1 to 3, wherein the key has a key groove between key ridges set to the same length, and all the partition plates are formed to have the same thickness. 全てのディスクと全ての仕切板は、鍵挿通孔が同一形状に形成されている請求項１〜４のいずれかに記載されたディスク錠装置。   The disk locking device according to any one of claims 1 to 4, wherein all the disks and all the partition plates have key insertion holes formed in the same shape. 請求項１〜５のいずれかに記載されたディスク錠装置であって、
前記鍵は、いずれかの鍵山の位置に前記鍵溝と連続する平坦部が設けられ、前記平坦部に対応する内筒内の位置には、鍵の挿入時に内筒の貫通孔と連通する凹欠部が外周縁に形成された第２のディスクが設けられているディスク錠装置。 The disk locking device according to any one of claims 1 to 5,
The key is provided with a flat portion that is continuous with the keyway at any one of the key ridges, and a concave portion that communicates with the through-hole of the inner cylinder when the key is inserted at a position in the inner cylinder corresponding to the flat portion. A disk locking device provided with a second disk having a notch formed on the outer peripheral edge.
JP2007319858A 2007-05-30 2007-12-11 Disc lock device Expired - Fee Related JP4685086B2 (en)

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JP2000096889A (en) * 1998-09-25 2000-04-04 Abloy Oy Combination of cylinder lock and key
JP2001193322A (en) * 2000-01-17 2001-07-17 Clover:Kk Disc lock device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000096889A (en) * 1998-09-25 2000-04-04 Abloy Oy Combination of cylinder lock and key
JP2001193322A (en) * 2000-01-17 2001-07-17 Clover:Kk Disc lock device

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