JP4422694B2 - Variable cylinder lock - Google Patents

Variable cylinder lock Download PDF

Info

Publication number
JP4422694B2
JP4422694B2 JP2006107169A JP2006107169A JP4422694B2 JP 4422694 B2 JP4422694 B2 JP 4422694B2 JP 2006107169 A JP2006107169 A JP 2006107169A JP 2006107169 A JP2006107169 A JP 2006107169A JP 4422694 B2 JP4422694 B2 JP 4422694B2
Authority
JP
Japan
Prior art keywords
pin
hole
key
plug
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2006107169A
Other languages
Japanese (ja)
Other versions
JP2007277973A (en
Inventor
基次 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Best Corp
Original Assignee
Best Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Best Corp filed Critical Best Corp
Priority to JP2006107169A priority Critical patent/JP4422694B2/en
Publication of JP2007277973A publication Critical patent/JP2007277973A/en
Application granted granted Critical
Publication of JP4422694B2 publication Critical patent/JP4422694B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Lock And Its Accessories (AREA)

Description

本発明は、自動販売機等の開閉扉の施解錠手段として使用されるシリンダ錠で、特に合鍵として施解錠に使用する基準のキーを必要に応じて変更することができる可変式シリンダ錠に関する。   The present invention relates to a cylinder lock used as a locking / unlocking means for an opening / closing door of a vending machine or the like, and more particularly, to a variable cylinder lock that can change a reference key used for locking / unlocking as a combined key as necessary.

一般に、この種の可変式シリンダ錠は、たとえば自動販売機の開閉扉を開錠し、本来は正当に料金を回収する集金担当者が不正を行うのを予防する目的で、施解錠に使用する合鍵の基準キーを変更できる構造になっているが、従来の可変式シリンダ錠の中には、合鍵として使う基準キーの他に変更操作用に可変キーを別途に用意する必要がない構造にしたものがある(特許文献1参照)。   In general, this type of variable cylinder lock is used for locking and unlocking, for example, to unlock the door of a vending machine and to prevent fraudulent operations by a collector who normally collects charges. Although it has a structure that can change the reference key of the combined key, the conventional variable cylinder lock has a structure that does not require a separate variable key for changing operation in addition to the reference key used as a combined key. There is a thing (refer patent document 1).

この従来の可変式シリンダ錠は、軸芯にプラグ貫通穴をあけたシリンダに、軸芯に沿ってキー挿入溝が設けられたプラグを嵌合し、該プラグを、シリンダに対しその外周部からピン穴を通して出入りするピン群のシアライン形成に応じて回動可又は否とするピンシリンダ錠で、シリンダには、外周部に軸芯に向け貫通する複数のピン穴を軸芯方向に列設したピン穴列を基準位置に設け、その基準位置から周方向へ所定の回動角度離隔した可変位置にも同様に複数のピン穴を軸芯方向に列設したピン穴列を並設する一方、プラグには、それがシリンダに対し基準位置又は可変位置にあるとき、シリンダ側の2列のピン穴列の各ピン穴と連通する同数一列のピン穴列を径方向に設け、施解錠に使用する合鍵の中で、基準キーをキー挿入溝に差し込んでプラグを可変位置に回動させてから、その可変位置で抜き差し、基準キーから変更キーに差し換えて該変更キーと対応するピン群の組合せに変えることにより合鍵を変更する構造になっている。
特開2002−4657号公報
In this conventional variable cylinder lock, a plug having a key insertion groove along the shaft core is fitted into a cylinder having a plug through hole in the shaft core, and the plug is connected to the cylinder from its outer periphery. A pin cylinder lock that can be rotated or not according to the shear line formation of the pin group that goes in and out through the pin hole, and the cylinder has a plurality of pin holes arranged in the axial direction in the outer peripheral part. While the pin hole row is provided at the reference position, the pin hole row in which a plurality of pin holes are arranged in the axial direction is also arranged in parallel at the variable position spaced from the reference position in the circumferential direction by a predetermined rotation angle, When the plug is at the reference position or variable position with respect to the cylinder, the same number of pin hole rows communicating with each pin hole of the two pin hole rows on the cylinder side are provided in the radial direction and used for locking and unlocking Insert the reference key into the key insertion slot. From rotates the plug in variable position in its inserted and removed in variable positions, and presumed dead, switch from the reference key change key has a structure of changing the master key by changing the combination of the pin group corresponding to the changed key.
JP 2002-4657 A

ところで、一般のシリンダ錠において、プラグには、その先端部に、シリンダに対する回動範囲を上記基準位置から所定角度(例えば90度)の範囲に規制する回動規制カムがナット等の固着具で嵌脱自在に嵌着されている。そこで、従来の上記可変式シリンダ錠では、施解錠に使用する合鍵の基準キーを変えるときに、基準キーをキー挿入溝に差し込んでプラグを可変位置の方向へ回動させるためには、いったん開閉扉を開けてから、前記ナット等の固着具を緩めて回動規制カムによるプラグの回動規制を解除し、しかる後にプラグを可変位置へ回動し、その可変位置で抜き差して基準キーから変更キーに差し換える作業が必要であった。しかし、これでは、合鍵変更時のたびに、いちいち開閉扉を開けてから、回動規制カムによるプラグの回動規制状態を解除する一連の作業が必要であるため、それだけ合鍵の変更作業が著しく面倒であるという課題があった。   By the way, in a general cylinder lock, a plug is provided at the tip of the plug with a rotation restricting cam that restricts the rotation range with respect to the cylinder within a predetermined angle (for example, 90 degrees) from the reference position. It is detachably fitted. Therefore, in the conventional variable cylinder lock described above, when changing the reference key of the key used for locking / unlocking, in order to insert the reference key into the key insertion groove and rotate the plug toward the variable position, it is opened and closed once. After opening the door, loosen the fasteners such as nuts and release the rotation restriction of the plug by the rotation restricting cam, and then rotate the plug to the variable position and change it from the reference key by inserting and removing at the variable position. It was necessary to replace the key. However, this requires a series of operations to open the opening / closing door each time the key is changed and then release the plug rotation restriction state by the rotation restriction cam. There was a problem of being troublesome.

そこで、本発明の目的は、別途に合鍵変更用の可変キーを用意する必要がなく、しかも、開閉扉を閉めたまま外部操作で簡単に合鍵を可変とする可変式シリンダ錠を提供することにある。   Accordingly, an object of the present invention is to provide a variable cylinder lock that does not require a separate variable key for changing the key, and can easily change the key by an external operation while the door is closed. is there.

そこで、上記目的を達成すべく、請求項1に記載の発明は、たとえば以下に示す図示実施の形態のとおり、軸芯にプラグ貫通穴11をあけたシリンダCに、軸芯に沿ってキー挿入溝29を有するプラグPを嵌合し、該プラグPを、前記シリンダCに対しその外周部10からピン穴を通して出入りするピン群のシアライン形成に応じて回動可又は否とするシリンダ錠であって、前記シリンダCには、前記外周部10に軸芯に向け貫通する複数のピン穴12…を軸芯方向に列設した第1のピン穴列13を基準位置に設け、その基準位置から周方向へ所定の回動角度離隔した可変位置に同様に複数のピン穴14…を軸芯方向に列設した第2のピン穴列15を並設する一方、前記プラグPには、それが前記シリンダCに対し基準位置又は可変位置にあるとき、該記シリンダ側の第1又は第2のピン穴列13・15の各ピン穴12・14と連通する同数一列の第3のピン穴列35を径方向に設け、合鍵の基準キーKを前記キー挿入溝29に差し込んで前記プラグPを可変位置に回動させてから、その可変位置にて抜き差して前記基準キーKから変更キーK´に差し換えて該変更キーK´と対応するピン群の組合せに変更することにより合鍵を可変とする可変式シリンダ錠において、前記シリンダCは、前記外周部10に、キー抜き差し方向手前の基端面10hで開口した軸ガイド穴20を軸芯に沿って穿設し、該軸ガイド穴20の穴底近傍から軸芯と直交する向きに前記プラグ貫通穴11と連通するピン収納穴21を連設すると共に、前記外周部10の先端側の内周面には、ピン逃げ溝10gを凹設する一方、前記軸ガイド穴20には、先端部25a側に円周溝25cを有した制御軸25を、穴底に内設した第1コイルばね22で付勢して軸頭部25dを穴開口20aから外部へ臨ませた規制高さ位置と、該第1コイルばね22に抗して押し込まれると前記円周溝25cが前記ピン収納穴21と一致する規制解除高さ位置との間において深さ方向に移動可能に挿設すると共に、前記ピン収納穴21には、制御ピン26を進退可能に挿設してなり、前記プラグPは、前記シリンダCの基準位置と可変位置間の離隔角度に合わせて前記第3のピン穴列35から周方向へ離隔した角度位置に、前記キー挿入溝29と連通する規制ピン穴36を軸芯と直交する向きに穿設する一方、該規制ピン穴36にストッパピン37を径方向に進退可能に係合させてなり、前記基準キーKを含む合鍵は、板状の摘み部50から前記第1および第2のピン穴列13・15のピン群p1・p2と対応する形状に山部が延設され、その山部の先端側片面にピン係合穴51aを凹設した構成にする一方、合鍵変更時に装着して外部から前記プラグPを回動操作する外部操作部材であって、前記摘み部50を差し挟んで前記合鍵を着脱自在に保持する切り溝54を長さ方向に削設すると共に、長さ方向一端に有した突当て面70で開口したピンガイド穴56を、前記プラグPが可変位置に回動したときに前記シリンダ側の前記軸ガイド穴20と一致する位置に穿設する一方、該ピンガイド穴56に、押圧ピン60を、穴底に内設し付勢力が前記第1コイルばね22より強い第2コイルばね59で穴開口側へ付勢し、前記突当て面70から前記切り溝54と平行に出没自在に突設してなるアタッチメントAを備え、前記基準キーKを基準位置にある前記プラグPのキー挿入溝29に差し込んだとき、その基準位置では、前記ストッパピン37が前記キー挿入溝側から前記シリンダ側の前記ピン逃げ溝10gへ後退して前記基準キーKの抜き差し動作を許す一方、さらに該基準キーKを回して前記プラグPを基準位置から可変位置へ回動させると、該プラグPの回動に従い、前記ストッパピン37は、その先端が前記ピン逃げ溝10gから外れて前記シリンダCの内周面に当接し、その内周面に軸芯方向へ押し戻されて前記キー挿入溝29へ進入し、前記ピン係合穴51aに係合して前記基準キーKの抜き差しを規制し、前記プラグPが可変位置に至ると、前記規制ピン穴36と向い合う前記ピン収納穴21を前記制御軸25の先端と共に塞いだ状態の前記制御ピン26に制止されて前記基準キーKの抜き差し規制状態を保持する一方、合鍵変更時に、前記基準キーKを、その摘み部50を前記切り溝54に差し挟んで前記アタッチメントAに装着した状態で、基準位置にある前記キー挿入溝29に差し込んでから可変位置へ回動すると、その可変位置では、前記押圧ピン60が前記軸ガイド穴20の穴開口20aと一致するため、前記第2コイルばね59の付勢力に基づき前記制御軸25を押し込んで前記規制解除高さ位置へ移動し、該制御軸25の前記円周溝25cに前記制御ピン26を係合し、それに従って前記ストッパピン37を前記キー挿入溝29から後退させて前記基準キーKの抜き差し規制を解除してなることを特徴とする。 In order to achieve the above object, the invention described in claim 1 is, for example, inserted into a cylinder C having a plug through hole 11 in the shaft core along the shaft core, as shown in the embodiment shown below. This is a cylinder lock that is fitted with a plug P having a groove 29 and can be rotated or not according to the formation of a shear line of a pin group that enters and exits the cylinder C from the outer peripheral portion 10 through a pin hole. The cylinder C is provided with a first pin hole row 13 at the reference position in which a plurality of pin holes 12 penetrating the outer peripheral portion 10 toward the axis are arranged in the axial direction. Similarly, a second pin hole row 15 in which a plurality of pin holes 14 are arranged in the axial direction is arranged in parallel at a variable position spaced apart by a predetermined rotation angle in the circumferential direction. The cylinder C is at a reference position or a variable position. At this time, the same number of third pin hole rows 35 communicating with the respective pin holes 12 and 14 of the first or second pin hole row 13 and 15 on the cylinder side are provided in the radial direction, and the reference key K for the key combination is provided. Is inserted into the key insertion groove 29 and the plug P is rotated to a variable position, and then the plug corresponding to the change key K ′ is replaced by replacing the reference key K with the change key K ′. In the variable cylinder lock in which the key is made variable by changing to a combination of groups, the cylinder C has a shaft guide hole 20 opened at the base end surface 10h in front of the key insertion / removal direction along the shaft center. A pin housing hole 21 communicating with the plug through hole 11 from the vicinity of the bottom of the shaft guide hole 20 in a direction perpendicular to the shaft core, and an inner periphery on the distal end side of the outer peripheral portion 10. On the surface, pin escape groove 10g On the other hand, in the shaft guide hole 20, a control shaft 25 having a circumferential groove 25c on the tip end portion 25a side is urged by a first coil spring 22 provided in the bottom of the hole so that a shaft head portion 25d is provided. Between the restriction height position facing the outside from the hole opening 20 a and the restriction release height position where the circumferential groove 25 c coincides with the pin receiving hole 21 when pushed against the first coil spring 22. And a control pin 26 is inserted into the pin receiving hole 21 so as to be able to advance and retreat. The plug P is located between the reference position and the variable position of the cylinder C. A restriction pin hole 36 communicating with the key insertion groove 29 is formed in an angle perpendicular to the shaft center at an angular position spaced in the circumferential direction from the third pin hole row 35 in accordance with the separation angle. Stopper pin 37 can be moved forward and backward in the pin hole 36. In the combined key including the reference key K, a crest is extended from the plate-shaped knob 50 in a shape corresponding to the pin groups p1 and p2 of the first and second pin hole rows 13 and 15. The pin engaging hole 51a is recessed on one side of the front end of the crest, and is an external operation member that is attached when changing the key and rotates the plug P from the outside. The plug P is variable in the pin guide hole 56 opened at the abutting surface 70 provided at one end in the length direction. The pin guide hole 56 is provided with a pressing pin 60 at the bottom of the hole so that the urging force is applied to the first side. The second coil spring 59 stronger than the coil spring 22 is biased toward the hole opening side. And an attachment A that protrudes in and out of the abutment surface 70 in parallel with the cut groove 54, and when the reference key K is inserted into the key insertion groove 29 of the plug P at the reference position, At the reference position, the stopper pin 37 retreats from the key insertion groove side to the pin relief groove 10g on the cylinder side to permit the insertion / removal operation of the reference key K. Further, the reference key K is turned to turn the plug. When P is rotated from the reference position to the variable position side , as the plug P rotates, the stopper pin 37 comes out of the pin relief groove 10g and comes into contact with the inner peripheral surface of the cylinder C. is pushed back to the axial direction enters into the key insertion groove 29 on the inner peripheral surface thereof, engaged with the pin engaging hole 51a to restrict the insertion and removal of the reference key K, the plug P reaches the variable positions , While retaining the insertion and removal restriction state of the reference key K being restrained to the pin receiving hole 21 facing to the restriction pin hole 36 on the control pin 26 in the state plugged together with the tip of the control shaft 25, when duplicate key change When the reference key K is inserted into the key insertion groove 29 at the reference position in a state where the knob 50 is sandwiched between the cut groove 54 and attached to the attachment A, the reference key K is rotated to the variable position. In the variable position, since the pressing pin 60 matches the hole opening 20a of the shaft guide hole 20, the control shaft 25 is pushed in based on the biasing force of the second coil spring 59 and moved to the restriction release height position. Then, the control pin 26 is engaged with the circumferential groove 25c of the control shaft 25, and the stopper pin 37 is retracted from the key insertion groove 29 in accordance with the control pin 26. And characterized in that to release the can feed regulation.

請求項2に記載の発明は、請求項1に記載の可変式シリンダ錠において、たとえば以下に示す図示実施の形態のとおり、前記プラグPは、前記キー挿入溝29の入口側に鍔状のフランジ部30を設け、該フランジ部30に、前記シリンダCの外周部10の基端に被せる保護キャップ40を取り付け、該保護キャップ40には、シリンダCの外周部10の基端に被せた状態において、基準位置と可変位置間の離隔角度に合わせて前記軸ガイド穴20の穴開口20aから周方向へ離隔させた角度位置にボール保持穴46を設け、該ボール保持穴46に球状の保護ボール47を遊嵌して転動自在に保持してなることを特徴とする。   According to a second aspect of the present invention, in the variable cylinder lock according to the first aspect, for example, as shown in the embodiment shown below, the plug P has a flange-like flange on the inlet side of the key insertion groove 29. A protective cap 40 that covers the base end of the outer peripheral portion 10 of the cylinder C is attached to the flange portion 30, and the protective cap 40 is covered with the base end of the outer peripheral portion 10 of the cylinder C. A ball holding hole 46 is provided at an angular position separated from the hole opening 20a of the shaft guide hole 20 in the circumferential direction in accordance with a separation angle between the reference position and the variable position, and a spherical protective ball 47 is provided in the ball holding hole 46. It is characterized by being loosely fitted and held so that it can roll freely.

請求項1に記載の発明によれば、たとえば合鍵を基準キーから他のキーに不正に変更しようとして、基準位置において、基準キーをキー挿入溝に差し込んでプラグを回動して可変位置に移動させたとしても、この可変位置では、制御軸が規制高さ位置にあるため、ストッパピンが制御軸によって軸芯方向へ制御ピンを介して押し戻されてキー挿入溝側へ進入し、基準キーのピン係合穴に係合して基準キーの抜き差しを規制し、これにより、基準キーのみを用いて、これを可変位置へ回動するだけでは、その可変位置で基準キーを抜き差し操作できないので、勝手に合鍵を変更することはできない。一方で、正規に合鍵の基準キーを変更するときは、開閉扉を閉止状態のまま外側から、アタッチメントを使用して外部操作で合鍵を可変する。そのとき、基準キーはアタッチメントに装着した状態で、基準位置にあるプラグのキー挿入溝に差し込んでから可変位置へ回動すると、その可変位置では、押圧ピンが軸ガイド穴の穴開口と一致するため、第2コイルばねの付勢力に基づき制御軸を押し込んで規制解除高さ位置へ移動し、制御軸の円周溝に制御ピンを係合し、それに従ってストッパピンをキー挿入溝から後退させて基準キーの抜き差し規制を解除し、これによって、基準キーから新たな変更キーに差し換えて合鍵を変更可能な状態にする。こうして本発明によれば、別途に合鍵変更用の可変キーを用意する必要がなく、しかも、合鍵変更時のたびに、いちいち開閉扉を開けてから、回動規制カムによるプラグの回動規制状態を解除するような面倒な作業が必要なくなり、開閉扉を閉止状態にしたまま、外側から、アタッチメントを使った簡単な外部操作で合鍵を変更することができる。更には、アタッチメントを、たとえば所有者など責任ある管理者等が一括に管理することにすれば、不正の行われ易い自動販売機等の開閉扉の合鍵を勝手に変更することを予防することができる。   According to the first aspect of the present invention, for example, in an attempt to illegally change the key from the reference key to another key, at the reference position, the reference key is inserted into the key insertion groove and the plug is rotated to move to the variable position. Even in this case, since the control shaft is at the regulated height position at this variable position, the stopper pin is pushed back by the control shaft in the axial direction through the control pin and enters the key insertion groove side, and the reference key Engaging the pin engagement hole to regulate the insertion / extraction of the reference key, and by using only the reference key and turning it to the variable position, the reference key cannot be inserted / removed at the variable position. The key cannot be changed without permission. On the other hand, when the key key for the key combination is changed normally, the key combination is changed by an external operation using an attachment from the outside with the open / close door closed. At that time, when the reference key is attached to the attachment and is inserted into the key insertion groove of the plug at the reference position and then rotated to the variable position, the pressing pin coincides with the hole opening of the shaft guide hole at the variable position. Therefore, the control shaft is pushed in based on the urging force of the second coil spring and moved to the restriction release height position, the control pin is engaged with the circumferential groove of the control shaft, and the stopper pin is retracted from the key insertion groove accordingly. Thus, the restriction on the insertion / removal of the reference key is released, whereby the reference key is replaced with a new change key so that the combined key can be changed. Thus, according to the present invention, there is no need to separately prepare a variable key for changing the key, and each time the key is changed, the opening / closing door is opened and then the rotation restriction state of the plug by the rotation restriction cam is set. This eliminates the troublesome work of releasing the key and allows the key to be changed from the outside by a simple external operation using an attachment while the door is closed. Furthermore, if attachments are managed collectively by a responsible manager such as the owner, for example, it is possible to prevent the opening / closing door key of a vending machine or the like that is easily fraudulent from being changed without permission. it can.

請求項2に記載の発明によれば、保護キャップのボール保持穴を球状の保護ボールで転動自在に塞いでいるため、外部から不正に道具を使い、ボール保持穴を通して悪戯したり破壊しようとしても、それらが保護ボール上で滑って不正行為の妨げとなってシリンダ錠の防犯性を向上させることができる。   According to the second aspect of the present invention, since the ball holding hole of the protective cap is covered with a spherical protective ball so as to be able to roll, an attempt is made to mischief or break through the ball holding hole by using a tool illegally from the outside. However, they can slide on the protective ball to prevent fraud and improve the security of the cylinder lock.

以下、図面を参照しつつ、本発明の最良の実施形態について説明する。   Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.

図1は、本発明の一例である可変式シリンダ錠の分解斜視図、図2は、シリンダ錠の構成部品であるシリンダの構造を示す斜視図、図3は、キー非挿入時のシリンダ錠の断面図である。図示シリンダ錠は、外筒のシリンダCと、内筒のプラグPと、2種類のピン群p1・p2とを有したシリンダ錠本体と共に、シリンダ錠本体の施解錠に使用する合鍵と、特に、その合鍵としての基準キーKを他の変更キーに変えるときに用いるアタッチメントAを備えた構成になっている。   1 is an exploded perspective view of a variable cylinder lock as an example of the present invention, FIG. 2 is a perspective view showing the structure of a cylinder that is a component of the cylinder lock, and FIG. 3 is a view of the cylinder lock when the key is not inserted. It is sectional drawing. The illustrated cylinder lock includes a cylinder lock body having a cylinder C of an outer cylinder, a plug P of an inner cylinder, and two types of pin groups p1 and p2, and a key used for locking and unlocking of the cylinder lock body, It is configured to include an attachment A that is used when the reference key K as the key is changed to another change key.

シリンダCは、図1、図2および図3に示すように、略筒状をなす外周部10の軸芯にプラグ貫通穴11を穿設する一方、外周部10の外周面には、キー抜き差し方向手前の基端寄りに順次、リング嵌込み溝10aとキャップ抜止め鍔部10bとがそれぞれ環状に形成されている。更に、外周面には、軸芯方向に沿った一定の基準位置に、リング嵌込み溝10aからキー抜き差し方向先端に至って細長い浅底な蟻溝形の第1の凹溝10cを設け、第1の凹溝10cに軸芯に向け貫通する同じ穴径のピン穴12…を複数(例えば6個)列設して第1のピン穴列13を形成すると共に、第1の凹溝10cから周方向へ所定の回動角度(例えば50度)離隔した可変位置に、第1の凹溝10cと平行にそれと同様な第2の凹溝10dを並設し、第2の凹溝10dに軸芯に向け貫通する同じ穴径のピン穴14…を複数(例えば6個)列設して第2のピン穴列15を形成している。そして、2列のピン穴列13・15のピン穴12・14には、それぞれ第1列のピン群p1と第2列のピン群p2が移動可能に挿設され、それらピン群の飛び出しを防止するために、第1および第2の凹溝10c・10dに、それら溝形に合わせた形状の穴埋板16・17をそれぞれ圧入して外側から押えている。なお、第1列のピン群p1は、ボトムピンa、チェンジピンb、ドライバc、ピンスプリングdからなる一方、第2列のピン群p2は、チェンジピンe、チェンジドライバf、ピンスプリングgからなる。   As shown in FIGS. 1, 2, and 3, the cylinder C has a plug through hole 11 formed in the axial center of the outer peripheral portion 10 having a substantially cylindrical shape. A ring fitting groove 10a and a cap retaining collar portion 10b are formed in an annular shape sequentially toward the proximal end in the front direction. Further, a first groove 10c having a shallow dovetail shape extending from the ring insertion groove 10a to the front end in the key insertion / removal direction is provided on the outer peripheral surface at a fixed reference position along the axial direction. A plurality of (for example, six) pin holes 12 of the same hole diameter penetrating toward the shaft core are formed in the concave groove 10c to form the first pin hole array 13, and the first concave groove 10c is formed around the first concave groove 10c. A second concave groove 10d similar to the first concave groove 10c is juxtaposed in parallel with the first concave groove 10c at a variable position separated by a predetermined rotation angle (for example, 50 degrees) in the direction, and the shaft core is disposed in the second concave groove 10d. A second pin hole row 15 is formed by arranging a plurality (for example, six) of pin holes 14 having the same hole diameter penetrating in the direction of. The pin group p1 of the first row and the pin group p2 of the second row are movably inserted in the pin holes 12 and 14 of the two pin hole rows 13 and 15, respectively. In order to prevent this, hole filling plates 16 and 17 having shapes corresponding to the groove shapes are press-fitted into the first and second concave grooves 10c and 10d, respectively, and pressed from the outside. The pin group p1 in the first row consists of a bottom pin a, a change pin b, a driver c, and a pin spring d, while the pin group p2 in the second row consists of a change pin e, a change driver f, and a pin spring g. .

一方、外周部10の内周面には、基準位置にある第1のピン穴列13に対し、その対角位置に縦ガイド溝10eを凹設し、縦ガイド溝10eのキー抜き差し方向先端側に、差し込まれるキーを案内して所定の差込位置に位置決めるガイドピン18を軸芯方向へ向け突設している。ガイドピン18は、その先端に丸みを付け、基端側を、外周部10を貫通してあけた***に埋め込む一方、その***を外側から穴埋板片19で塞いで固着している。なお、外周部10には、ガイドピン18の設置位置から先端側に向けて、プラグPの回動角度範囲を規制する規制凸部10fが突設されている。更に、外周部10の内周面には、キー抜き差し方向先端側において、特に可変位置にある第2のピン穴列15に対し、その対角位置にピン逃げ溝10gを凹設してなる。   On the other hand, on the inner peripheral surface of the outer peripheral portion 10, a vertical guide groove 10 e is recessed at the diagonal position with respect to the first pin hole row 13 at the reference position, and the longitudinal guide groove 10 e is on the front end side in the key insertion / removal direction. In addition, a guide pin 18 that guides a key to be inserted and positions it at a predetermined insertion position is provided so as to project in the axial direction. The guide pin 18 is rounded at the tip, and the base end is embedded in a small hole penetrating the outer peripheral portion 10, while the small hole is fixed by closing the small hole with a hole-embedding plate piece 19 from the outside. The outer peripheral portion 10 is provided with a restricting convex portion 10f that restricts the rotation angle range of the plug P from the installation position of the guide pin 18 toward the distal end side. Further, on the inner peripheral surface of the outer peripheral portion 10, a pin relief groove 10 g is recessed at a diagonal position with respect to the second pin hole row 15 that is particularly at a variable position on the front end side in the key insertion / removal direction.

他方、同じ外周部10には、キー抜き差し方向手前の基端に穴開口20aをあけた軸ガイド穴20を軸芯に沿って穿設すると共に、軸ガイド穴20の穴底近傍から軸芯と直交する向きに中心のプラグ貫通穴11と連通するピン収納穴21を連設している。ピン収納穴21は、プラグ貫通穴11と連通する側と反対側の穴開口21aを、外周部10の外周面から外部へ臨ませてなる。該ピン収納穴21には、穴開口21aから制御ピン26を軸ガイド穴20を横切って径方向に進退可能に内挿する。一方、軸ガイド穴20には、ピンスプリングの第1コイルばね22と制御軸25とが挿入される。制御軸25は、その挿入方向先端部25aに、その軸端面から軸方向へピンばね収納穴25bを凹設し、先端部25aの近傍外周には円周溝25cを環状に削設してなる。そこで、制御軸25は、ピンばね収納穴25bにばね一端を嵌め込んで第1コイルばね22を保持した状態で、第1コイルばね22を穴開口20aに通して軸ガイド穴20内へ挿設する。そして、シリンダCでは、制御軸25を、穴底に内設された第1コイルばね22でばね付勢して軸頭部25dを穴開口20aから外部へ臨ませた規制高さ位置と、第1コイルばね22に抗して押し込まれると円周溝25cが制御ピン26のピン収納穴21と一致する規制解除高さ位置との間において、深さ方向に軸移動可能に内挿してなる(図7参照)。   On the other hand, the same outer peripheral portion 10 is provided with a shaft guide hole 20 having a hole opening 20a at the base end in front of the key insertion / removal direction along the shaft core, and from the vicinity of the hole bottom of the shaft guide hole 20 to the shaft core. A pin housing hole 21 communicating with the central plug through hole 11 is provided in a perpendicular direction. The pin housing hole 21 has a hole opening 21 a opposite to the side communicating with the plug through hole 11 facing the outside from the outer peripheral surface of the outer peripheral portion 10. A control pin 26 is inserted into the pin receiving hole 21 from the hole opening 21 a so as to be able to advance and retract in the radial direction across the shaft guide hole 20. On the other hand, a first coil spring 22 of a pin spring and a control shaft 25 are inserted into the shaft guide hole 20. The control shaft 25 has a pin spring accommodation hole 25b formed in the insertion direction distal end portion 25a in the axial direction from the shaft end surface thereof, and a circumferential groove 25c is formed in an annular shape on the outer periphery in the vicinity of the distal end portion 25a. . Therefore, the control shaft 25 is inserted into the shaft guide hole 20 through the hole opening 20a in a state in which one end of the spring is fitted in the pin spring housing hole 25b and the first coil spring 22 is held. To do. In the cylinder C, the control shaft 25 is spring-biased by a first coil spring 22 provided in the bottom of the hole, and a regulated height position where the shaft head portion 25d is exposed from the hole opening 20a to the outside, When pushed against one coil spring 22, the circumferential groove 25 c is inserted so as to be axially movable in the depth direction between the restriction release height position coinciding with the pin receiving hole 21 of the control pin 26 ( (See FIG. 7).

プラグPは、図1および図3に示すように、軸芯に沿って切り溝のキー挿入溝29を断面凸形に削設し、キー挿入溝29のキー挿入側基端に鍔状のフランジ部30を設ける一方、先端側の外周にねじ部31を螺刻すると共に、ねじ部31の基端側の外周には、環状スリット32を設けてなる。フランジ部30には、ピン嵌込み用の***30aが凹設されている。一方、フランジ部30とねじ部31間の胴部33には、キー挿入溝29へ通ずる径方向に、シリンダC側の第1および第2のピン穴列13・15の各ピン穴12・14に対応させて、それらと同数(6個)一列のピン穴34…を列設して第3のピン穴列35を設けてなる。そして、斯かるプラグPにおいて、特に、胴部33の環状スリット32寄りには、シリンダCの基準位置と可変位置間の離隔角度(例えば50度)に合わせて、第3のピン穴列35から周方向へ離隔した角度位置に、キー挿入溝29と連通する貫通穴の規制ピン穴36を、軸芯と直交する径方向に穿設している。規制ピン穴36には、ストッパピン37を径方向に進退可能に係合させている。   As shown in FIGS. 1 and 3, the plug P has a key insertion groove 29, which is a cut groove along the shaft center, cut into a convex cross section, and a flange-like flange on the key insertion side base end of the key insertion groove 29. While providing the part 30, while screwing the screw part 31 in the outer periphery of the front end side, the annular slit 32 is provided in the outer periphery of the base end side of the screw part 31. A small hole 30 a for pin insertion is recessed in the flange portion 30. On the other hand, in the body portion 33 between the flange portion 30 and the screw portion 31, the pin holes 12, 14 of the first and second pin hole rows 13, 15 on the cylinder C side are arranged in the radial direction leading to the key insertion groove 29. Corresponding to the above, the same number (six) of pin holes 34... Are arranged to provide a third pin hole array 35. In such a plug P, in particular, near the annular slit 32 of the body portion 33, from the third pin hole row 35 in accordance with the separation angle (for example, 50 degrees) between the reference position of the cylinder C and the variable position. A restricting pin hole 36 of a through hole communicating with the key insertion groove 29 is formed in a radial direction perpendicular to the axis at angular positions separated in the circumferential direction. A stopper pin 37 is engaged with the restriction pin hole 36 so as to be able to advance and retract in the radial direction.

更に、図示プラグCには、フランジ部30に保護キャップ40を取り付ける。保護キャップ40は、破壊防止のため、たとえば焼入れ強化したステンレス製で、シリンダCの外周部10の基端外周に被せて嵌込み可能な浅底な椀形をなし、円形でフラットな鍵穴部40aには、その中心を径方向に横断して細長いキー通し穴41を設ける一方、鍵穴部40aの内面には、フランジ部30のピン嵌込み用***30aと対応させて同様なピン嵌合穴40bを設けてなる。   Further, a protective cap 40 is attached to the flange portion 30 in the illustrated plug C. The protective cap 40 is made of, for example, hardened and strengthened stainless steel to prevent breakage. The protective cap 40 has a shallow saddle shape that can be fitted over the outer peripheral end of the outer peripheral portion 10 of the cylinder C, and is a circular flat keyhole portion 40a. Is provided with an elongated key passage hole 41 that traverses the center thereof in the radial direction, and a similar pin fitting hole 40b corresponding to the pin fitting small hole 30a of the flange portion 30 on the inner surface of the key hole portion 40a. Is provided.

そこで、プラグPは、フランジ部30のピン嵌込み用***30aに、軸方向両端に突部を有した位置決めピン42の一端突部を嵌め込む一方、他端突部を保護キャップ40側のピン嵌合穴40bに嵌め込むことにより、キー挿入溝29とキー通し穴41を位置合わせして保護キャップ40をフランジ部30に取り付けてなる。斯かるプラグPは、キー挿入溝29とキー通し穴41を、シリンダC側の基準位置にある第1のピン穴列13に合わせてプラグ貫通穴11に嵌合するが、最も奥まで貫挿したとき、フランジ部30が外周部10の基端と面一状態となると共に、保護キャップ40を、外周部10の基端外周に被せて、C型リング42で抜け止めした状態で(図3参照)冠着する一方、先端側のねじ部31がプラグ貫通穴11から外部に突出した状態で、シリンダCに対し回動可能に嵌着する。そこで、プラグPは、シリンダCに対し回動させて基準位置又は可変位置にあるときは、第3のピン穴列35の各ピン穴34がシリンダC側の第1又は第2のピン穴列13・15の各ピン穴12・14と連通するようになっている。なお、プラグPは、環状スリット32に止め輪44を嵌着して抜け止めし、ねじ部31には、シリンダC側の規制凸部10fに突き当ててプラグPの回動角度範囲(例えば90度)を規定する回動規制カム45を嵌着している。   Therefore, the plug P is inserted into the pin fitting small hole 30a of the flange portion 30 with one end protrusion of the positioning pin 42 having protrusions at both ends in the axial direction, and the other end protrusion is a pin on the protective cap 40 side. By fitting in the fitting hole 40 b, the key insertion groove 29 and the key through hole 41 are aligned, and the protective cap 40 is attached to the flange portion 30. In such a plug P, the key insertion groove 29 and the key through hole 41 are fitted into the plug through hole 11 in accordance with the first pin hole row 13 at the reference position on the cylinder C side. When the flange portion 30 is flush with the base end of the outer peripheral portion 10, the protective cap 40 is put on the outer periphery of the base end of the outer peripheral portion 10 and is prevented from coming off by the C-shaped ring 42 (FIG. 3). Reference) On the other hand, the threaded portion 31 on the distal end side is fitted to the cylinder C so as to be rotatable in a state of protruding from the plug through hole 11 to the outside. Therefore, when the plug P is rotated with respect to the cylinder C and is in the reference position or the variable position, each pin hole 34 of the third pin hole array 35 is in the first or second pin hole array on the cylinder C side. The pin holes 12 and 14 of the 13 and 15 are communicated with each other. The plug P is fitted to the annular slit 32 to prevent the plug P from coming off, and the threaded portion 31 abuts against the restricting convex portion 10f on the cylinder C side so that the rotation angle range of the plug P (for example, 90). A rotation restricting cam 45 that regulates the degree) is fitted.

ところで、保護キャップ40は、キー通し穴41を基準位置にある第1のピン穴列13に合わせてシリンダCの外周部10の基端に被せた状態において、基準位置と可変位置間の離隔角度(50度)に合わせて軸ガイド穴20の穴開口20aから周方向へ離隔させた角度位置に、軸ガイド穴20の穴開口20aと対応するボール保持穴46を穿設している。ボール保持穴46は、オリフィス状の貫通穴で、鍵穴部40aの厚さ方向外面側へ漸次穴径が狭まった穴形状になっている。そこで、プラグPは、ボール保持穴46に球状の保護ボール47を遊嵌し、保護キャップ40をシリンダCの外周部10の基端に装着したとき、その基端面10hと保護キャップ40間で保護ボール47を転動自在にボール保持穴46内に保持してなる。そして、プラグPが基準位置から可変位置へ回動すると、それに従って、保護キャップ40と共に保護ボール47がシリンダC側の軸ガイド穴20の穴開口20aから臨む制御軸25の軸頭部25dの真上位置へ回動し、制御軸25を第1コイルばね22に抗して押し込み可能な構造になっている。保護ボール47は、悪戯や破壊等の不正行為防止のため、たとえば保護キャップ40と同様に焼入れ強化したステンレス製であることが望ましい。   By the way, the protective cap 40 has a separation angle between the reference position and the variable position in a state where the key through hole 41 is placed on the base end of the outer peripheral portion 10 of the cylinder C so as to align with the first pin hole row 13 at the reference position. A ball holding hole 46 corresponding to the hole opening 20a of the shaft guide hole 20 is formed at an angular position separated from the hole opening 20a of the shaft guide hole 20 in the circumferential direction in accordance with (50 degrees). The ball holding hole 46 is an orifice-shaped through hole, and has a hole shape in which the diameter of the hole gradually decreases toward the outer surface side in the thickness direction of the keyhole portion 40a. Therefore, when the spherical protective ball 47 is loosely fitted in the ball holding hole 46 and the protective cap 40 is attached to the proximal end of the outer peripheral portion 10 of the cylinder C, the plug P is protected between the proximal end surface 10h and the protective cap 40. The ball 47 is held in the ball holding hole 46 so as to roll freely. Then, when the plug P is rotated from the reference position to the variable position, the protection ball 47 and the protection ball 47 together with the protection cap 40 follow the true position of the shaft head 25d of the control shaft 25 facing the hole opening 20a of the shaft guide hole 20 on the cylinder C side. The control shaft 25 can be pushed up against the first coil spring 22 by rotating to the upper position. The protective ball 47 is desirably made of stainless steel that has been hardened and hardened in the same manner as the protective cap 40, for example, in order to prevent illegal acts such as mischief and destruction.

図示シリンダ錠に使用する合鍵は、図1にその基準キーKを示すとおり、公知の板状のキーで、幅広な摘み部50から第1および第2のピン穴列13・15のピン群p1・p2と対応する形状に山部51が延設されてなる。そして、特に山部51の先端側片面に皿穴状の小さなピン係合穴51aを凹設すると共に、摘み部50のピン係合穴51aを有する片面に対し反対側の他面に、小さな位置決め穴50aを凹設してなる。そして、合鍵として使用する、後述の変更キーK´にも、先端側に同じようにピン係合穴51aと位置決め穴50aとが形成される。   The key used for the illustrated cylinder lock is a known plate-like key, as shown by its reference key K in FIG. 1, from the wide knob 50 to the pin group p1 of the first and second pin hole rows 13 and 15. -The peak part 51 is extended in the shape corresponding to p2. In addition, a countersink-shaped small pin engagement hole 51a is recessed in one side of the tip 51, and a small positioning is provided on the other side opposite to the one side of the knob 50 having the pin engagement hole 51a. The hole 50a is recessed. A pin engagement hole 51a and a positioning hole 50a are also formed on the tip side of the change key K ′, which will be described later, used as a key.

アタッチメントAは、たとえば金属製(樹脂製であってもよい)で、アタッチメント本体52とそれに被せるキャップ53とを備える。アタッチメント本体52は、保護キャップ40と略同径な円柱部52aと、円柱部52aの片側でそれより一段薄肉にした摘み部52bとで形成すると共に、合鍵の板厚に合わせた溝幅で、それらの摘み部52bを差し込み可能な切り溝54を長さ方向に削設している。円柱部52aには、その本体端面55に穴開口56aをあけたピンガイド穴56を、プラグP側の保護キャップ40に有したキー通し穴41とボール保持穴46との相対位置に合わせた開口位置において、切り溝54の横に形成している。ピンガイド穴56には、ピンスプリングの第2コイルばね59と押圧ピン60とが挿入される。   The attachment A is made of, for example, metal (may be made of resin), and includes an attachment main body 52 and a cap 53 that covers the attachment main body 52. The attachment main body 52 is formed by a cylindrical portion 52a having substantially the same diameter as the protective cap 40, and a knob portion 52b that is thinner by one step on the one side of the cylindrical portion 52a, and has a groove width that matches the plate thickness of the key. Cut grooves 54 into which the knobs 52b can be inserted are cut in the length direction. In the cylindrical portion 52a, a pin guide hole 56 having a hole opening 56a formed in the end face 55 of the main body thereof is an opening in accordance with the relative position between the key passage hole 41 provided in the protective cap 40 on the plug P side and the ball holding hole 46 In position, it is formed beside the kerf 54. A second coil spring 59 of a pin spring and a pressing pin 60 are inserted into the pin guide hole 56.

押圧ピン60は、基端60aを一段太径に形成し、その基端の端面から軸方向へピンばね収納穴60bを凹設し、ピンばね収納穴60bにばね一端を嵌め込んで第2コイルばね59を保持した状態で、そのコイルばね59を穴開口56aに通してピンガイド穴56内に挿設する。そして、押圧ピン60を、穴底に内設された第2コイルばね59でばね付勢して穴開口56a側へ付勢し、本体端面55から切り溝54と平行に出没自在に突設している(図7参照)。なお、第2コイルばね59には、シリンダC側の第1コイルばね22より強いばね付勢力をもったピンスプリングが用いられる。   The pressing pin 60 has a base end 60a having a one-stage thick diameter, a pin spring accommodating hole 60b is recessed in the axial direction from the end face of the base end, and one end of the spring is fitted into the pin spring accommodating hole 60b. With the spring 59 held, the coil spring 59 is inserted into the pin guide hole 56 through the hole opening 56a. Then, the pressing pin 60 is urged by the second coil spring 59 provided in the bottom of the hole to be urged toward the hole opening 56a, and protrudes from the end face 55 of the main body in parallel with the kerf 54 so as to protrude and retract. (See FIG. 7). The second coil spring 59 is a pin spring having a spring biasing force stronger than that of the first coil spring 22 on the cylinder C side.

更に、アタッチメント本体52の円柱部52aには、図1に示すように、その外周面に穴開口をあけて切り溝54へ通ずるボール収納穴61を径方向に穿設し、穴開口から順に、位置決めボール62と付勢コイルばね63を内設している。摘み部52bには、その角縁にピン取付穴64を設け、ピン取付穴64に波形スプリングピン65を係合し、該スプリングピン65を嵌合させた細管状の位置決めストッパ66を切り溝54内で挟着している。   Further, in the cylindrical portion 52a of the attachment main body 52, as shown in FIG. 1, a ball storage hole 61 is formed in the outer circumferential surface of the cylindrical body 52a so as to communicate with the kerf 54 in the radial direction. A positioning ball 62 and a biasing coil spring 63 are provided. A pin mounting hole 64 is provided at the corner edge of the knob 52b, a corrugated spring pin 65 is engaged with the pin mounting hole 64, and a tubular positioning stopper 66 fitted with the spring pin 65 is cut into a groove 54. It is pinched inside.

キャップ53は、アタッチメント本体52の円柱部52aに合わせて全体に片側開放の円筒形に形成すると共に、アタッチメント本体52側の切り溝54とピンガイド穴56と対応する溝66と穴67が設けられている。そこで、アタッチメントAは、アタッチメント52側の切り溝54とピンガイド穴56に、キャップ53側の溝66と穴67を合わせて円柱部52aにキャップ53を被せ、押圧ピン60が穴56・67を通して突当て面70から突出した状態で、キャップ53をアタッチメント本体52にねじ止めして組み立ててなる。なお、キャップ53をアタッチメント本体52の円柱部52aに被せたとき、付勢コイルばね63で位置決めボール62を切り溝54側へ付勢する状態となり、これにより、位置決めボール62を切り溝54から付勢コイルばね63に抗して出没自在に保持している(図7参照)。   The cap 53 is formed in a cylindrical shape that is open on one side in accordance with the column portion 52a of the attachment body 52, and is provided with grooves 66 and holes 67 corresponding to the cut grooves 54 and the pin guide holes 56 on the attachment body 52 side. ing. Therefore, in the attachment A, the groove 53 and the pin guide hole 56 on the attachment 52 side are aligned with the groove 66 and the hole 67 on the cap 53 side, and the cap 53 is put on the cylindrical portion 52a, and the pressing pin 60 passes through the holes 56 and 67. The cap 53 is assembled to the attachment main body 52 by screwing in a state of protruding from the abutting surface 70. When the cap 53 is put on the cylindrical portion 52a of the attachment main body 52, the urging coil spring 63 urges the positioning ball 62 toward the kerf 54, thereby attaching the positioning ball 62 from the kerf 54. The coil spring 63 is held against the biasing coil spring 63 (see FIG. 7).

そこで、アタッチメントAは、その使用時は、図6(a)に示すように、たとえば基準キーKを、その山部51を上向きにして摘み部50の後端を位置決めストッパ66に当てて位置決めしながら、摘み部50を切り溝54に差し込んで装着する。すると、アタッチメントAは、切り溝54内で位置決めボール62が弾性的に摘み部50の位置決め穴50bに係合し、基準キーK等を着脱自在に保持する。   Therefore, when the attachment A is used, as shown in FIG. 6A, for example, the reference key K is positioned by placing the rear end of the knob 50 against the positioning stopper 66 with the peak portion 51 facing upward. The knob 50 is inserted into the cut groove 54 and attached. Then, in the attachment A, the positioning ball 62 elastically engages with the positioning hole 50b of the knob 50 in the kerf 54, and the reference key K and the like are detachably held.

さて、上述した構成の可変式シリンダ錠は、図示省略するが、たとえば自動販売機の開閉扉に、図3(a)に示すシリンダ錠本体を、その保護キャップ40の鍵穴部40aを扉表面側から外部へ臨ませて取り付ける。その場合、図示シリンダ錠では、図3(b)に示すように、鍵穴部40aのキー通し穴41を通して外部へ臨むプラグCのキー挿入溝29が図中上向きに断面凸形のキー挿入部が形成され、シリンダC側の第1ピン穴列13および縦ガイド溝10eと、プラグP側の第3のピン穴列35とが一致する基準位置において、キー非挿入状態には、ピン群p1が第1のピン穴12…と第3のピン穴34…に挿入されて整列し、いずれの部分でもシアラインは形成されず、施錠可能状態になっている。一方、このようにプラグPの第3のピン穴列35が第1ピン穴列13と一致する基準位置にあるとき、図3(c)に示すように、プラグCのストッパピン37は、制御軸25を内挿した軸ガイド穴20から図中反時計方向へ50度ずれた位置にあるため、その位置にあるシリンダC側のピン逃げ溝10gへキー挿入溝29側から後退し、合鍵の基準キーKの抜き差し動作を許容する状態にある。   The variable cylinder lock having the above-described configuration is not shown in the figure. For example, the cylinder lock main body shown in FIG. 3A is provided on the door of the vending machine, and the key hole 40a of the protective cap 40 is provided on the door surface side. Install from the outside. In that case, in the illustrated cylinder lock, as shown in FIG. 3 (b), the key insertion groove 29 of the plug C facing the outside through the key through hole 41 of the key hole portion 40a has a key insertion portion having a convex section in the upward direction in the figure. At the reference position where the first pin hole row 13 and the longitudinal guide groove 10e on the cylinder C side are aligned with the third pin hole row 35 on the plug P side, the pin group p1 is in the non-key insertion state. The first pin holes 12 and the third pin holes 34 are inserted and aligned, and no shear line is formed in any part, and the lock is possible. On the other hand, when the third pin hole row 35 of the plug P is in the reference position coincident with the first pin hole row 13 as described above, the stopper pin 37 of the plug C is controlled as shown in FIG. Since the shaft guide hole 20 in which the shaft 25 is inserted is at a position shifted by 50 degrees counterclockwise in the figure, the key insertion groove 29 is retracted from the key insertion groove 29 side to the pin relief groove 10g on the cylinder C side at that position. The standard key K is allowed to be inserted and removed.

そこで、本発明において、いま閉止状態で施錠した開閉扉を開錠するときは、図4(a)に示すように、基準位置において合鍵の基準キーKを保護キャップ40のキー通し穴41からプラグPのキー挿入溝29内に差し込むが、最も奥深く差し込んだときに、山部51の突端を、図4(b)に示すように、ガイドピン16で押し上げて所定の差込位置に案内する。すると、ピン群p1が、山部51の鍵山形状に応じて、第1のピン穴12…と第3のピン穴34…を通って所定のピン群の組合せに揃えられシアラインが形成されて、プラグPは回動可能となる。即ち、図示シリンダ錠は開錠可能となる。そのとき、プラグPが基準位置にあるときは、図4(c)に示すように、上述のようにストッパピン37は、キー挿入溝29側からシリンダC側のピン逃げ溝10gへ後退しているため、基準キーKの抜き差し動作が可能な状態にある。そこで、基準キーKを図中時計方向へ回してプラグPを回動規制カム45で規制する回動角度範囲(90度)まで回動し、それに応じてプラグPの先端で、例えばデッドボルトを動かして開閉扉を開錠する。しかる後、開閉扉を開けて、自動販売機内から、例えば料金を回収するなどの作業を行ってから、開閉扉を閉止し、差し込んだ基準キーKを反対の反時計方向へ90度回動してプラグPを基準位置に戻し、それに応じてプラグPの先端でデッドボルトを逆向きに動かして開閉扉を施錠する。   Therefore, in the present invention, when unlocking the door that is locked in the closed state, as shown in FIG. 4 (a), the reference key K of the combined key is plugged from the key through hole 41 of the protective cap 40 at the reference position. Although it is inserted into the key insertion groove 29 of P, when it is inserted deepest, the protruding end of the peak portion 51 is pushed up by the guide pin 16 and guided to a predetermined insertion position as shown in FIG. Then, according to the key mountain shape of the peak portion 51, the pin group p1 passes through the first pin holes 12 and the third pin holes 34 to be aligned with a predetermined combination of pin groups, and a shear line is formed, The plug P can be rotated. That is, the illustrated cylinder lock can be unlocked. At that time, when the plug P is at the reference position, as shown in FIG. 4C, the stopper pin 37 is retracted from the key insertion groove 29 side to the pin relief groove 10g on the cylinder C side as described above. Therefore, the reference key K can be inserted and removed. Therefore, the reference key K is turned clockwise in the drawing to turn the plug P to the turning angle range (90 degrees) restricted by the turning restricting cam 45, and at the tip of the plug P, for example, a dead bolt is attached. Move to unlock the door. After that, the door is opened and the work such as collecting the charges is performed from the inside of the vending machine, and then the door is closed and the inserted reference key K is rotated 90 degrees counterclockwise. Then, the plug P is returned to the reference position, and the dead bolt is moved in the reverse direction at the tip of the plug P accordingly, and the door is locked.

ところで、図示シリンダ錠において、たとえば合鍵を基準キーから他のキーに変更しようとして、上述した基準位置において、同様に基準キーKをプラグPのキー挿入溝29に差し込んだ状態から、図5(a)・(b)に示すように、仮にプラグPを図中時計方向へ50度回動して可変位置側へ回動させると、このプラグPが回動するに従い、前記ストッパピン37が、ピン逃げ溝10gから外れてシリンダCの内周面に当接し、その内周面に、軸芯方向へ押し戻されてキー挿入溝29へ進入し、皿穴状のピン係合穴51aに係合して基準キーKの抜き差しを規制する。そして、プラグPが可変位置に至ると、規制ピン穴36と向い合うピン収納穴21を制御軸25の先端25aと共に塞いだ状態の制御ピン26に制止されて基準キーKの抜き差し規制状態を保持する。したがって、本発明の可変式シリンダ錠では、基準キーKのみ用いて、これを可変位置へ回動するだけでは、その可変位置で基準キーKを抜き差し操作できないので、勝手に合鍵を変更することはできない。 By the way, in the illustrated cylinder lock, for example, when the key is to be changed from the reference key to another key, the reference key K is similarly inserted into the key insertion groove 29 of the plug P in the above-described reference position, and FIG. As shown in (b), if the plug P is rotated 50 degrees clockwise in the drawing and rotated to the variable position side, as the plug P rotates, the stopper pin 37 Detach from the escape groove 10g and come into contact with the inner peripheral surface of the cylinder C. The inner peripheral surface is pushed back in the axial direction to enter the key insertion groove 29, and engages with the countersunk pin engaging hole 51a. This restricts the insertion and removal of the reference key K. When the plug P reaches the variable position, the pin receiving hole 21 facing the restriction pin hole 36 is restrained by the control pin 26 in a state of being closed together with the tip 25a of the control shaft 25, and the insertion / removal restriction state of the reference key K is maintained. To do. Therefore, in the variable cylinder lock of the present invention, only using the reference key K and turning the variable key to the variable position makes it impossible to insert / remove the reference key K at the variable position. Can not.

そこで、図示シリンダ錠において、合鍵の基準キーKを変える合鍵可変時は、開閉扉を閉止状態のままで、外側から、以下のようにアタッチメントAを使用して外部操作することによって合鍵を可変する。   Therefore, in the illustrated cylinder lock, when changing the key to change the reference key K of the key, the key can be changed by externally operating from the outside using the attachment A from the outside while the door is closed. .

まず、図6(a)に示すように、基準キーKを、前述のように摘み部50を切り溝54に差し込んでアタッチメントAに装着してから、アタッチメントAの摘み部52bを摘んで山部51を保護キャップ40のキー通し穴41からプラグPのキー挿入溝29内に差し込み、突当て面70を保護キャップ40の鍵穴部40aの外面に突き当ててセットする。すると、押圧ピン60がボール保持穴46から臨む保護ボール47の真上で、第2コイルばね59に抗してピンガイド穴56内へ押し込まれて没入する一方、シリンダC内では、前述した施解錠時と同様にピン群p1にシアラインが形成され、プラグPは回動可能となる。   First, as shown in FIG. 6 (a), the reference key K is mounted on the attachment A by inserting the knob 50 into the cut groove 54 as described above, and then the knob 52b of the attachment A is picked. 51 is inserted into the key insertion groove 29 of the plug P from the key through hole 41 of the protective cap 40, and the abutting surface 70 is set against the outer surface of the key hole portion 40 a of the protective cap 40. Then, the pressing pin 60 is pushed into the pin guide hole 56 against the second coil spring 59 just above the protective ball 47 facing the ball holding hole 46, while in the cylinder C, Similar to the time of locking, a shear line is formed in the pin group p1, and the plug P can be rotated.

それから、基準キーKがプラグPのキー挿入溝29に差込み状態のまま、図6(b)に示すように、アタッチメントAを図中時計方向へ回し、プラグPをシリンダCに対し基準位置から50度回動して可変位置へ移動させる。すると、この可変位置では、図7(a)・(c)に示すように、押圧ピン60の位置がシリンダC側の軸ガイド穴20の穴開口20aと一致するため、アタッチメントA側の第2コイルばね59のばね付勢力によって、押圧ピン60がピンガイド穴56から押し出され、保護ボール47を介して軸ガイド穴20に嵌合する。すると、押圧ピン60は、アタッチメントAによるプラグPの回動をロックする共に、第2のコイルばね59の付勢力に基づき、制御軸25を穴底の第1コイルばね22に抗して押し込んで規制解除高さ位置へ移動させる。すると、規制解除高さ位置において、制御軸25の円周溝25a側へそれと対向した制御ピン26が後退し、それに従ってプラグP側のストッパピン37もキー挿入溝29から後退し始める。そして図8(a)・(b)に示すように、制御ピン26のピン後端が円周溝25c内に係合すると、それに従ってストッパピン37も後退してキー挿入溝29から退避し、これにより、ストッパピン37が皿穴状のピン係合穴51aに係合することがなく、基準キーKの抜き差し規制が解除される。なお、この可変位置での基準キーKの差込み状態では、図7(b)に示すように、ピン群p2が、山部51の鍵山形状に応じて、第1のピン穴14…と第3のピン穴34…を通って所定のピン群の組合せに揃えられシアラインが形成される。   Then, with the reference key K inserted in the key insertion groove 29 of the plug P, as shown in FIG. 6B, the attachment A is rotated clockwise in the drawing, and the plug P is moved from the reference position to the cylinder C by 50. Rotate to a variable position. Then, at this variable position, as shown in FIGS. 7A and 7C, the position of the pressing pin 60 coincides with the hole opening 20a of the shaft guide hole 20 on the cylinder C side, so the second on the attachment A side. Due to the spring biasing force of the coil spring 59, the pressing pin 60 is pushed out from the pin guide hole 56 and is fitted into the shaft guide hole 20 via the protective ball 47. Then, the pressing pin 60 locks the rotation of the plug P by the attachment A and pushes the control shaft 25 against the first coil spring 22 at the bottom of the hole based on the urging force of the second coil spring 59. Move to the restriction release height position. Then, at the restriction release height position, the control pin 26 opposed to the circumferential groove 25a side of the control shaft 25 is retracted, and the stopper pin 37 on the plug P side also starts to retract from the key insertion groove 29 accordingly. 8A and 8B, when the rear end of the control pin 26 is engaged in the circumferential groove 25c, the stopper pin 37 is also retracted and retracted from the key insertion groove 29 accordingly. As a result, the stopper pin 37 is not engaged with the countersunk pin engaging hole 51a, and the insertion / removal restriction of the reference key K is released. In the insertion state of the reference key K at this variable position, as shown in FIG. 7B, the pin group p2 has a first pin hole 14 and a third pin according to the key mountain shape of the peak portion 51. Through the pin holes 34, a predetermined combination of pin groups is aligned to form a shear line.

しかる後、そのまま可変位置において、アタッチメントAと共に基準キーKをシリンダCから引き抜く。そして、基準キーKに代え、図6(c)に示すように、変更キーK´を、前述のようにアタッチメントAに装着してから、プラグPのキー挿入溝29内に差し込み、突当て面70を保護キャップ40の鍵穴部40aに突き当ててセットする。すると、この可変位置では、前述したと同様に、アタッチメントAから押圧ピン60がピンガイド穴56を通して押し出されて軸ガイド穴20と嵌合し、アタッチメントAによるプラグPの回動が可変位置でいったんロックされる共に、押圧ピン60で制御軸25を押し込んで規制解除高さ位置へ移動し、ストッパピン37をキー挿入溝29から後退させて変更キーK´を抜き差し自在の状態にする。この可変位置での変更キーK´の差込み状態では、図9に示すように、ピン群p2が、変更キーK´の山部75の鍵山形状に応じて、第2のピン穴14…と第3のピン穴34…を通って前記基準キーKの場合とは異なる所定のピン群の組合せに揃えられて、シアラインが形成される。   After that, the reference key K is pulled out from the cylinder C together with the attachment A at the variable position. Then, instead of the reference key K, as shown in FIG. 6C, the change key K ′ is mounted on the attachment A as described above, and then inserted into the key insertion groove 29 of the plug P, and the abutting surface. 70 is set in contact with the key hole 40a of the protective cap 40. Then, in this variable position, as described above, the pressing pin 60 is pushed out from the attachment A through the pin guide hole 56 and fitted into the shaft guide hole 20, and the rotation of the plug P by the attachment A is temporarily performed in the variable position. While being locked, the control shaft 25 is pushed by the push pin 60 and moved to the restriction release height position, and the stopper pin 37 is retracted from the key insertion groove 29 so that the change key K ′ can be inserted and removed. In the insertion state of the change key K ′ at the variable position, as shown in FIG. 9, the pin group p <b> 2 has the second pin holes 14. Through the three pin holes 34..., A predetermined combination of pin groups different from the case of the reference key K is arranged to form a shear line.

しかる後、図6(d)に示すように、アタッチメントAを変更キーK´から引き抜いてプラグPの回動規制を解除してから、図6(e)に示すように、変更キーK´を図中反時計方向へ50度回動させてプラグPを元の基準位置へ戻す。すると今度は、基準位置においても、変更キーK´の差込み状態では、図10に示すように、ピン群p1が、変更キーK´の山部75の鍵山形状に応じて、第1のピン穴12…と第3のピン穴34…を通って前記基準キーKの場合とは異なる所定のピン群の組合せに揃えられて、シアラインが形成される。こうして、開閉扉を閉止状態のまま外側から、アタッチメントAを使用した外部操作によって合鍵を基準キーKから変更キーK´へ変える可変操作を完了する。従って、基準位置において、改めて元の基準キーKをキー挿入溝29に差し込んで開錠しようとしても、図11に示すように、ピン群p1にシアラインが形成されず、プラグPは回転不能になるため、合鍵として元の基準キーKを使用することができないことになる。   Thereafter, as shown in FIG. 6 (d), the attachment A is pulled out from the change key K 'to release the rotation restriction of the plug P, and then the change key K' is pressed as shown in FIG. 6 (e). In the figure, the plug P is returned to the original reference position by rotating 50 degrees counterclockwise. Then, even at the reference position, when the change key K ′ is inserted, as shown in FIG. 10, the pin group p1 has the first pin hole according to the key mountain shape of the peak portion 75 of the change key K ′. 12 and the third pin holes 34... Are aligned to a predetermined pin group combination different from the case of the reference key K to form a shear line. Thus, the variable operation for changing the key combination from the reference key K to the change key K ′ by the external operation using the attachment A is completed from the outside with the open / close door closed. Therefore, even if the original reference key K is inserted again into the key insertion groove 29 at the reference position and unlocked, no shear line is formed in the pin group p1 and the plug P cannot rotate as shown in FIG. Therefore, the original reference key K cannot be used as a combined key.

本発明の一例である可変式シリンダ錠の分解斜視図である。It is a disassembled perspective view of the variable cylinder lock which is an example of this invention. シリンダ錠の構成部品であるシリンダの構造を示す斜視図である。It is a perspective view which shows the structure of the cylinder which is a component of a cylinder lock. (a)はキー非挿入時のシリンダ錠の線A−A断面図、(b)は線B−B断面図、(c)は線C−C断面図である。(A) is a sectional view taken along line AA of the cylinder lock when the key is not inserted, (b) is a sectional view taken along line BB, and (c) is a sectional view taken along line CC. (a)は基準位置における基準キー挿入時のシリンダ錠を示す線D−D断面図、(b)は線E−E断面図、(c)は線F−F断面図である。(A) is a sectional view taken along line DD showing the cylinder lock when the reference key is inserted at the reference position, (b) is a sectional view taken along line EE, and (c) is a sectional view taken along line FF. (a)は可変位置における基準キー挿入時のシリンダ錠を示す線G−G断面図、(b)は線H−H断面図である。(A) is a sectional view taken along line GG showing the cylinder lock when the reference key is inserted at the variable position, and (b) is a sectional view taken along line HH. 合鍵の変更手順を示す斜視図である。It is a perspective view which shows the change procedure of a key. (a)は可変位置において、アタッチメント装着状態で基準キーを挿入したときシリンダ錠を示す線I−I断面図、(b)は線J−J断面図、(c)は線K−K断面図である。(A) is a sectional view taken along line I-I showing the cylinder lock when the reference key is inserted in the attachment position at the variable position, (b) is a sectional view taken along line JJ, and (c) is a sectional view taken along line KK. It is. (a)は可変位置において、アタッチメント装着状態で基準キーを挿入したときシリンダ錠を示す線L−L断面図、(b)は線M−M断面図である。(A) is a sectional view taken on line LL showing a cylinder lock when a reference key is inserted in the attachment state at a variable position, and (b) is a sectional view taken on line MM. 可変位置における変更キー挿入時のシリンダ錠を示す横断面図である。It is a transverse cross section showing a cylinder lock at the time of change key insertion in a variable position. 基準位置における変更キー挿入時のシリンダ錠を示す横断面図である。It is a transverse cross section showing a cylinder lock at the time of change key insertion in a standard position. 合鍵変更後に元の基準キーを挿入した状態のシリンダ錠を示す横断面図である。It is a cross-sectional view showing the cylinder lock in a state where the original reference key is inserted after the key change.

符号の説明Explanation of symbols

A アタッチメント
C シリンダ
K 基準キー
K´ 変更キー
P プラグ
p1 第1のピン群
p2 第2のピン群
10 シリンダの外周部
10g ピン逃げ溝
11 シリンダのプラグ貫通穴
12・14・34 ピン穴
13 第1のピン穴列
15 第2のピン穴列
20 軸ガイド穴
21 ピン収納穴
22 第1のコイルばね
25 制御軸
25c 円周溝
26 制御ピン
29 キー挿入溝
35 第3のピン穴列
36 規制ピン穴
37 ストッパピン
50 キーの摘み部
51・75 山部
51a ピン係合穴
54 切り溝
56 ピンガイド穴
59 第2のコイルばね
60 押圧ピン
70 突当て面
A Attachment C Cylinder K Reference key K 'Change key P Plug p1 First pin group p2 Second pin group 10 Cylinder outer peripheral portion 10g Pin relief groove 11 Cylinder plug through hole 12, 14, 34 Pin hole 13 First Pin hole row 15 second pin hole row 20 shaft guide hole 21 pin housing hole 22 first coil spring 25 control shaft 25c circumferential groove 26 control pin 29 key insertion groove 35 third pin hole row 36 restriction pin hole 37 Stopper pin 50 Key knob 51/75 Mountain 51a Pin engaging hole 54 Cut groove 56 Pin guide hole 59 Second coil spring 60 Pressing pin 70 Abutting surface

Claims (2)

軸芯にプラグ貫通穴をあけたシリンダに、軸芯に沿ってキー挿入溝を有するプラグを嵌合し、該プラグを、前記シリンダに対しその外周部からピン穴を通して出入りするピン群のシアライン形成に応じて回動可又は否とするシリンダ錠であって、前記シリンダには、前記外周部に軸芯に向け貫通する複数のピン穴を軸芯方向に列設した第1のピン穴列を基準位置に設け、その基準位置から周方向へ所定の回動角度離隔した可変位置に同様に複数のピン穴を軸芯方向に列設した第2のピン穴列を並設する一方、前記プラグには、それが前記シリンダに対し基準位置又は可変位置にあるとき、該記シリンダ側の第1又は第2のピン穴列の各ピン穴と連通する同数一列の第3のピン穴列を径方向に設け、合鍵の基準キーを前記キー挿入溝に差し込んで前記プラグを可変位置に回動させてから、その可変位置にて抜き差して前記基準キーから変更キーに差し換えて該変更キーと対応するピン群の組合せに変更することにより合鍵を可変とする可変式シリンダ錠において、
前記シリンダは、
前記外周部に、キー抜き差し方向手前の基端面で開口した軸ガイド穴を軸芯に沿って穿設し、該軸ガイド穴の穴底近傍から軸芯と直交する向きに前記プラグ貫通穴と連通するピン収納穴を連設すると共に、前記外周部の先端側の内周面には、ピン逃げ溝を凹設する一方、前記軸ガイド穴には、先端部側に円周溝を有した制御軸を、穴底に内設した第1コイルばねで付勢して軸頭部を穴開口から外部へ臨ませた規制高さ位置と、該第1コイルばねに抗して押し込まれると前記円周溝が前記ピン収納穴と一致する規制解除高さ位置との間において深さ方向に移動可能に挿設すると共に、前記ピン収納穴には、制御ピンを進退可能に挿設してなり、
前記プラグは、
前記シリンダの基準位置と可変位置間の離隔角度に合わせて前記第3のピン穴列から周方向へ離隔した角度位置に、前記キー挿入溝と連通する規制ピン穴を軸芯と直交する向きに穿設する一方、該規制ピン穴にストッパピンを径方向に進退可能に係合させてなり、
前記基準キーを含む合鍵は、
板状の摘み部から前記第1および第2のピン穴列のピン群と対応する形状に山部が延設され、その山部の先端側片面にピン係合穴を凹設した構成にする一方、
合鍵変更時に装着して外部から前記プラグを回動操作する外部操作部材であって、前記摘み部を差し挟んで前記合鍵を着脱自在に保持する切り溝を長さ方向に削設すると共に、長さ方向一端に有した突当て面で開口したピンガイド穴を、前記プラグが可変位置に回動したときに前記シリンダ側の前記軸ガイド穴と一致する位置に穿設する一方、該ピンガイド穴に、押圧ピンを、穴底に内設し付勢力が前記第1コイルばねより強い第2コイルばねで穴開口側へ付勢し、前記突当て面から前記切り溝と平行に出没自在に突設してなるアタッチメントを備え、
前記基準キーを基準位置にある前記プラグのキー挿入溝に差し込んだとき、その基準位置では、前記ストッパピンが前記キー挿入溝側から前記シリンダ側の前記ピン逃げ溝へ後退して前記基準キーの抜き差し動作を許す一方、さらに該基準キーを回して前記プラグを基準位置から可変位置へ回動させると、該プラグの回動に従い、前記ストッパピンは、その先端が前記ピン逃げ溝から外れて前記シリンダの内周面に当接し、その内周面に軸芯方向へ押し戻されて前記キー挿入溝へ進入し、前記ピン係合穴に係合して前記基準キーの抜き差しを規制し、前記プラグが可変位置に至ると、前記規制ピン穴と向い合う前記ピン収納穴を前記制御軸の先端と共に塞いだ状態の前記制御ピンに制止されて前記基準キーの抜き差し規制状態を保持する一方、
合鍵変更時に、前記基準キーを、その摘み部を前記切り溝に差し挟んで前記アタッチメントに装着した状態で、基準位置にある前記キー挿入溝に差し込んでから可変位置へ回動すると、その可変位置では、前記押圧ピンが前記軸ガイド穴の穴開口と一致するため、前記第2コイルばねの付勢力に基づき前記制御軸を押し込んで前記規制解除高さ位置へ移動し、該制御軸の前記円周溝に前記制御ピンを係合し、それに従って前記ストッパピンを前記キー挿入溝から後退させて前記基準キーの抜き差し規制を解除してなることを特徴とする、可変式シリンダ錠。
Fit a plug having a key insertion groove along the shaft core into a cylinder with a plug through hole in the shaft core, and form a shear line of a pin group through which the plug enters and exits from the outer periphery of the cylinder through the pin hole. A cylinder lock that can be rotated or not according to the cylinder, wherein the cylinder has a first pin hole row in which a plurality of pin holes penetrating in the axial direction in the outer peripheral portion are arranged in the axial direction. A second pin hole row in which a plurality of pin holes are arranged in the axial direction is arranged in parallel at a variable position provided at a reference position and spaced apart from the reference position by a predetermined rotation angle in the circumferential direction, while the plug The third pin hole row of the same number of rows communicating with each pin hole of the first or second pin hole row on the cylinder side has a diameter when it is at a reference position or a variable position with respect to the cylinder. And insert the reference key of the combined key into the key insertion groove A variable type in which the key is made variable by turning the plug to a variable position and then inserting / removing the plug at the variable position to replace the reference key with a change key and changing to a combination of pins corresponding to the change key. In cylinder lock,
The cylinder is
A shaft guide hole opened at the base end surface in front of the key insertion / removal direction is formed in the outer peripheral portion along the shaft core, and communicates with the plug through hole in a direction perpendicular to the shaft core from near the bottom of the shaft guide hole. The pin housing hole is continuously provided, and a pin relief groove is recessed in the inner peripheral surface on the distal end side of the outer peripheral portion, while the shaft guide hole has a circumferential groove on the distal end portion side. When the shaft is urged by a first coil spring provided in the bottom of the hole and the shaft head is exposed to the outside from the hole opening, and when the shaft is pushed against the first coil spring, the circle The circumferential groove is inserted so as to be movable in the depth direction between the restriction release height position coinciding with the pin accommodation hole, and the control pin is inserted in the pin accommodation hole so as to be able to advance and retreat,
The plug is
The restriction pin hole communicating with the key insertion groove is oriented in a direction perpendicular to the shaft core at an angular position spaced from the third pin hole row in the circumferential direction according to the separation angle between the reference position and the variable position of the cylinder. On the other hand, the stopper pin is engaged with the restriction pin hole so as to advance and retract in the radial direction,
The combined key including the reference key is
A crest is extended from the plate-shaped knob to a shape corresponding to the pin group of the first and second pin hole rows, and a pin engaging hole is recessed on one end of the crest. on the other hand,
It is an external operation member that is mounted when changing the key, and rotates the plug from the outside, and has a cut groove in the length direction that holds the key detachably across the knob. A pin guide hole opened at the abutting surface at one end in the vertical direction is drilled at a position coinciding with the shaft guide hole on the cylinder side when the plug is rotated to the variable position. In addition, a pressing pin is provided in the bottom of the hole, and is biased toward the hole opening side by a second coil spring having a biasing force stronger than that of the first coil spring. Equipped with attachments,
When the reference key is inserted into the key insertion groove of the plug at the reference position, the stopper pin retracts from the key insertion groove side to the pin relief groove on the cylinder side at the reference position, and While allowing the insertion / removal operation, if the reference key is further turned to rotate the plug from the reference position to the variable position side , the stopper pin is disengaged from the pin relief groove as the plug rotates. Abutting on the inner peripheral surface of the cylinder, being pushed back in the axial direction to the inner peripheral surface and entering the key insertion groove, engaging the pin engaging hole to restrict insertion and removal of the reference key , When the plug reaches the variable position, one to hold the insertion and removal restriction state of the reference key is restrained to the pin receiving hole facing said limit pin bore to the control pins of the state plugged together with the tip of the control shaft ,
When the key is changed, when the reference key is inserted into the key insertion groove at the reference position and is turned to the variable position in a state where the knob is inserted into the attachment with the knob portion interposed between the cut groove, the variable position Then, since the pressing pin coincides with the hole opening of the shaft guide hole, the control shaft is pushed in based on the urging force of the second coil spring and moved to the restriction release height position, and the circle of the control shaft is A variable cylinder lock, wherein the control pin is engaged with a circumferential groove, and the stopper pin is retracted from the key insertion groove in accordance therewith to release the restriction of insertion and removal of the reference key.
前記プラグは、前記キー挿入溝の入口側に鍔状のフランジ部を設け、該フランジ部に、前記シリンダの外周部の基端に被せる保護キャップを取り付け、該保護キャップには、シリンダの外周部の基端に被せた状態において、基準位置と可変位置間の離隔角度に合わせて前記軸ガイド穴の穴開口から周方向へ離隔させた角度位置にボール保持穴を設け、該ボール保持穴に球状の保護ボールを遊嵌して転動自在に保持してなることを特徴とする、請求項1に記載の可変式シリンダ錠。
The plug is provided with a flange-like flange portion on the inlet side of the key insertion groove, and a protective cap that covers the proximal end of the outer peripheral portion of the cylinder is attached to the flange portion. The outer peripheral portion of the cylinder is attached to the protective cap. A ball holding hole is provided at an angular position spaced in the circumferential direction from the hole opening of the shaft guide hole in accordance with the separation angle between the reference position and the variable position, and the ball holding hole is spherical. The variable cylinder lock according to claim 1, wherein the protective ball is loosely fitted and held so as to be freely rollable.
JP2006107169A 2006-04-10 2006-04-10 Variable cylinder lock Expired - Fee Related JP4422694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006107169A JP4422694B2 (en) 2006-04-10 2006-04-10 Variable cylinder lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006107169A JP4422694B2 (en) 2006-04-10 2006-04-10 Variable cylinder lock

Publications (2)

Publication Number Publication Date
JP2007277973A JP2007277973A (en) 2007-10-25
JP4422694B2 true JP4422694B2 (en) 2010-02-24

Family

ID=38679681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006107169A Expired - Fee Related JP4422694B2 (en) 2006-04-10 2006-04-10 Variable cylinder lock

Country Status (1)

Country Link
JP (1) JP4422694B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9528300B2 (en) 2012-03-14 2016-12-27 Townsteel, Inc. Cylindrical lockset
US9394722B2 (en) 2013-01-15 2016-07-19 Townsteel, Inc. Attack-thwarting cylindrical lockset
TWI485312B (en) * 2012-03-14 2015-05-21 Townsteel Inc Cylindrical lockset

Also Published As

Publication number Publication date
JP2007277973A (en) 2007-10-25

Similar Documents

Publication Publication Date Title
JP5016485B2 (en) Re-lockable lock assembly
US6910356B2 (en) Anti-pick mogul cylinder
US8806905B2 (en) Padlock assembly
CA2782161C (en) Rekeyable lock cylinder, rekeyable padlock and method of rekeying
JP5535780B2 (en) Key and locking device
US20100043508A1 (en) Pin locking device
US8424349B2 (en) Key cylinder lock arrangements
US6718808B2 (en) Tubular-type locking cylinder and dedicated key
US4624119A (en) Tumbler lock
JP4422694B2 (en) Variable cylinder lock
JP5114369B2 (en) Steering lock device
EP2982817B1 (en) Lock core
JP4320332B2 (en) Variable cylinder lock
US20200378151A1 (en) Lock and key therefor
EP2811087B1 (en) Lock with replaceable bottom pins
EP3048226A1 (en) Lock cylinder replaceable padlock
JP4700508B2 (en) Cylinder lock
JPH07299757A (en) Cylinder lock
CA2486002C (en) Exchangeable lock construction
JP2019073872A (en) Cylinder lock and inner cylinder thereof
JP2001254543A (en) Steering wheel apparatus for automobile
JP2005282049A (en) Cylinder lock
JP2002303066A (en) Cylinder lock
JP2006083672A (en) Variable cylinder lock
JPH0768806B2 (en) Cylinder-lock

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090122

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090526

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090715

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091124

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091204

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121211

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131211

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees