JP4550637B2

JP4550637B2 - Thumb turn device

Info

Publication number: JP4550637B2
Application number: JP2005080733A
Authority: JP
Inventors: 哲也堤
Original assignee: Goal Co Ltd
Current assignee: Goal Co Ltd
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2010-09-22
Anticipated expiration: 2025-03-18
Also published as: JP2006257840A

Description

本発明は、不正な解錠を防止できる扉錠のサムターン装置に関するものである。 The present invention relates to a door lock thumb-turn device that can prevent unauthorized unlocking.

一戸建てやマンション等の玄関扉を不正に解錠する行為の一つとして、いわゆるサムターン回しが知られている。これは、扉と扉枠との隙間（いわゆるチリ）や、扉にあけた穴に針金や紐等を挿入し、この不正解錠手段で室内側に取り付けてあるサムターン装置のツマミを解錠方向に回転させ、デッドボルトを後退させることにより不正解錠するものである。 A so-called thumb turn is known as one of the acts of illegally unlocking the entrance doors of detached houses and condominiums. This is the direction of unlocking the thumb turn device knob that is attached to the room interior by inserting a wire or string into the gap between the door and door frame (so-called dust) or a hole in the door. And unlocking illegally by retracting the deadbolt.

本発明は、上記事情に鑑みてなされたものであり、その主たる目的は、いわゆるサムターン回しを有効に防止するサムターン装置を提供することにある。 The present invention has been made in view of the above circumstances, and a main object thereof is to provide a thumb turn device that effectively prevents so-called thumb turn.

上記目的を達成するために、本発明のサムターン装置は、回転動作により錠手段を施錠・解錠するサムターン軸と、このサムターン軸に係脱可能とされ、サムターン軸と係合してサムターン軸を回転させるツマミとを備えるサムターン装置であって、サムターン軸が、その基端から基端方向に一体に設けられたガイド軸部を有し、このガイド軸部に、軸方向２位置に周方向に形成された係止溝が形成され、前記ツマミが、サムターン軸に対して周方向に回転可能で軸方向に移動不可能なツマミ本体と、ツマミ本体内に軸方向移動可能に設けられていて、ガイド軸部に挿通され、ガイド軸部に対して軸方向及び回転方向に可動な可動ブロックと、前記可動ブロックに設けられ、可動ブロックに対してガイド軸部の半径方向へ移動可能な係止部材と、この係止部材に形成され、前記ガイド軸部を挿通可能な軸挿通孔と、前記係止部材を径方向外方に付勢する付勢手段とを備え、前記係止部材の軸挿通孔内にガイド軸部が挿通され、前記係止部材が第１の係止溝に係止する位置にあるとき前記可動ブロックが前記サムターン軸と離脱しツマミ本体がサムターン軸に対して空転状態（空転モード）となり、前記係止部材が第２の係止溝に係止する位置にあるとき可動ブロックが前記サムターン軸と係合し、ツマミ本体がサムターン軸を操作可能な状態（操作モード）となることを特徴とする。 In order to achieve the above object, the thumb turn device of the present invention has a thumb turn shaft that locks and unlocks the locking means by a rotational operation, and can be engaged with and disengaged from the thumb turn shaft, and engages with the thumb turn shaft to move the thumb turn shaft. A thumb turn device comprising a knob for rotating, wherein the thumb turn shaft has a guide shaft portion integrally provided in the base end direction from the base end thereof, and the guide shaft portion is circumferentially positioned at two positions in the axial direction. The formed locking groove is formed, and the knob is provided so as to be rotatable in the circumferential direction with respect to the thumb turn shaft and not movable in the axial direction, and to be movable in the axial direction in the knob body. A movable block that is inserted through the guide shaft portion and is movable in the axial direction and the rotational direction with respect to the guide shaft portion, and a locking member that is provided on the movable block and is movable in the radial direction of the guide shaft portion with respect to the movable block A shaft insertion hole formed in the locking member, through which the guide shaft portion can be inserted, and a biasing means for biasing the locking member radially outward, the shaft insertion hole of the locking member When the guide shaft portion is inserted through and the locking member is in a position where the locking member is locked in the first locking groove, the movable block is detached from the thumb turn shaft, and the knob body is in an idle state with respect to the thumb turn shaft (idling). Mode), the movable block engages with the thumb-turn shaft when the locking member is in a position to be locked in the second locking groove, and the knob body is in a state in which the thumb-turn shaft can be operated (operation mode). It is characterized by that.

好ましくは、上記構成に加えて前記係止部材が、前記サムターン軸の径方向の対向位置であって、前記第１の係止溝と第２の係止溝の間隔に等しい軸方向距離離れた位置に２個設けられてなることを特徴とするモード切換式防犯サムターン装置である。 Preferably, in addition to the above-described configuration, the locking member is located at a position opposed to the thumb turn shaft in the radial direction, and is separated by an axial distance equal to the interval between the first locking groove and the second locking groove. It is a mode-switching type crime prevention thumb turn device characterized in that two are provided at a position.

また、好ましくは、上記構成に加えて前記係止部材の半径方向外端に、前記係止部材と一体に設けられた押圧部材が設けられ、ツマミ本体の外部から操作可能であることを特徴とするモード切換式防犯サムターン装置である。 Preferably, in addition to the above configuration, a pressing member provided integrally with the locking member is provided at a radially outer end of the locking member, and can be operated from the outside of the knob body. It is a mode switching type crime prevention thumb turn device.

また、好ましくは、上記構成に加えて前記係止部材に押圧部材が一体に設けられ、該押圧部材の移動位置が前記ツマミ本体の外部から視認可能であることを特徴とするモード切換式防犯サムターン装置である。 Preferably, in addition to the above configuration, a pressing member is integrally provided on the locking member, and a moving position of the pressing member is visible from the outside of the knob main body. Device.

また、好ましくは、上記構成に加えて前記係止部材及び可動ブロックと軸方向の移動を一体に行うブロックカバーが可動ブロックに設けられ、可動ブロックとサムターン軸との係合・離脱に対応して、前記ブロックカバーが、ツマミ本体に収納しもしくはツマミ本体から突出し、これにより操作・空転モードの確認ができることを特徴とするモード切換式防犯サムターン装置である。 Preferably, in addition to the above-described configuration, a block cover that integrally moves the locking member and the movable block in the axial direction is provided on the movable block, corresponding to engagement / disengagement between the movable block and the thumb turn shaft. A mode-switchable crime prevention thumb-turn device characterized in that the block cover is housed in or protrudes from the knob body so that the operation / idle mode can be confirmed.

また、好ましくは、上記構成に加えてツマミ本体は、サムターン軸に対し回転可能であるとともに、サムターン軸に対する周方向の位置決めがなされることを特徴とするモード切換式防犯サムターン装置である。 Preferably, in addition to the above configuration, the knob main body is a mode-switching type security thumb turn device characterized in that the knob body is rotatable with respect to the thumb turn shaft and is positioned in the circumferential direction with respect to the thumb turn shaft.

本発明のサムターン装置によれば、係止部材をサムターン軸の径方向へ移動させてこのサムターン軸を操作可能位置に移動するためには、係止部材を付勢手段に抗してサムターン軸の径方向内側へ移動させる必要がある。しかも、外出時などにはツマミをサムターン軸と離脱状態（空転モード）にしておくことができる。これにより、針金や紐等による不正解錠を有効に防止することができる。また、在宅時には、ツマミをサムターン軸と係合状態に移動させることができ、この状態（操作モード）では通常のサムターンと同じ操作性が得られる。 According to the thumb turn device of the present invention, in order to move the locking member in the radial direction of the thumb turn shaft and move the thumb turn shaft to the operable position, the locking member is moved against the biasing means. It is necessary to move radially inward. In addition, the knob can be separated from the thumb-turn shaft (idling mode) when going out. Thereby, illegal unlocking by a wire, a string, etc. can be prevented effectively. When the user is at home, the knob can be moved into engagement with the thumb-turn shaft. In this state (operation mode), the same operability as that of a normal thumb-turn can be obtained.

以下、本発明のサムターン装置について、実施例に基づき更に詳細に説明する。
まず、本実施例のサムターン装置１０が適用される扉錠１の一例を図１４により説明する。図１４において１０２は錠ケースである。この錠ケース１０２は、扉１００の戸先側端部の上下方向略中央部に取り付けられ、扉１００を施錠、解錠するデッドボルト１０８を備えている。デッドボルト１０８は、錠ケース１０２の戸先側端面から出没可能とされており、そのデッドボルト１０８を出没させるための出没操作機構が錠ケース１０２に内蔵されている。 Hereinafter, the thumb turn device of the present invention will be described in more detail based on examples.
First, an example of the door lock 1 to which the thumb turn device 10 of the present embodiment is applied will be described with reference to FIG. In FIG. 14, reference numeral 102 denotes a lock case. The lock case 102 is attached to a substantially central portion in the vertical direction of the door end side end portion of the door 100 and includes a dead bolt 108 that locks and unlocks the door 100. The dead bolt 108 can be projected and retracted from the end face side end face of the lock case 102, and a retracting operation mechanism for retracting the dead bolt 108 is built in the lock case 102.

このデッドボルト１０８の出没、つまり前進または後退は、錠ケース１０２内の出没操作機構に連結するように取り付けられる室内側のサムターン装置１０のツマミ１１とこれと一体回転可能なサムターン軸１２、または室外側のシリンダー錠１１０の鍵（不図示）の操作により行われる。 The dead bolt 108 is moved in and out, that is, moved forward or backward. The knob 11 of the indoor thumb turn device 10 and the thumb turn shaft 12 which can be rotated together with the knob 11 of the indoor side mounted to be connected to the moving operation mechanism in the lock case 102 or the chamber. This is performed by operating a key (not shown) of the outer cylinder lock 110.

なお、図示の扉錠１は、本発明のサムターン装置１０が適用される一例としての彫込本締錠であるが、本発明のサムターン装置は、ケースロックや面付錠あるいは電気錠などにも適用可能である。
また、扉錠の施錠、解錠機構は、本実施例のようにデッドボルトを出没作動させるものに限らず、サムターンやシリンダーの操作によって、レバーハンドルやノブなどの回転を制御して、施錠、解錠するようにした扉錠にも適用できる。 The illustrated door lock 1 is an engraved book lock as an example to which the thumb turn device 10 of the present invention is applied. However, the thumb turn device of the present invention can be applied to a case lock, a face lock, an electric lock, or the like. Applicable.
In addition, the locking and unlocking mechanism of the door lock is not limited to the mechanism that causes the dead bolt to move in and out as in this embodiment, but the rotation of the lever handle or knob is controlled by the operation of the thumb turn or cylinder to lock, It can also be applied to door locks that are unlocked.

図１は、本実施例のサムターン装置の縦断面図であり、図１４のＩ−Ｉ線に沿う面で切断した態様の一部を示している。図２は図１のＸ−Ｘ線に沿う断面図、図３は図２のＡ−Ａ断面図、図４は図２のＢ―Ｂ断面図である。
本実施例のサムターン装置１０は、取付座２０と、この取付座２０に回転可能に取り付けられ、回転操作によりデッドボルト１０８を進退させるサムターン軸１２と、このサムターン軸１２に係脱可能とされるツマミ１１とを主要部に備えている。 FIG. 1 is a longitudinal sectional view of the thumb turn device of the present embodiment, and shows a part of an aspect cut along a plane along line II in FIG. 2 is a cross-sectional view taken along line XX of FIG. 1, FIG. 3 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB of FIG.
The thumb turn device 10 of this embodiment is attached to a mounting seat 20, a thumb turn shaft 12 that is rotatably attached to the mounting seat 20, and advances and retracts the dead bolt 108 by a rotating operation, and can be engaged with and disengaged from the thumb turn shaft 12. A knob 11 is provided in the main part.

図１〜図４はツマミ１１がサムターン軸１２と離脱して空転し得る状態（空転モード）を示し、図９〜図１１は、ツマミ１１がサムターン軸１２に係合して一体に回動する状態（操作モード）を示している。図６〜８は、後述する押圧部材６８，７８を押し下げて空転モードと操作モードの間を移動している状態を示している。
図５は、サムターン装置を構成する各部品を示す展開斜視図である。 1 to 4 show a state in which the knob 11 can be separated from the thumb turn shaft 12 and idle (spinning mode), and FIGS. 9 to 11 are engaged with the thumb turn shaft 12 and rotate integrally. Indicates the state (operation mode). 6 to 8 show a state where pressing members 68 and 78 described later are pushed down to move between the idling mode and the operation mode.
FIG. 5 is an exploded perspective view showing each part constituting the thumb turn device.

以下、主に図１〜図４及び図５を参照しながらサムターン装置１０の構成について説明する。以下においては、図１の右側（扉側）を先端方向とし左側を基端方向として説明する。
サムターン装置１０のサムターン軸１２は、先端側を太径部分１２１とし、基端側を細径部分１２２とした段付円柱形であり、その太径部分１２１の基端部１２ａには径方向外側へ拡径してフランジ１５が形成されている。このフランジ１５の中心からサムターン軸１２の基端方向に延出する細形部分１２２によって円柱形状のガイド軸部１７が一体形成されている。 Hereinafter, the configuration of the thumb turn device 10 will be described mainly with reference to FIGS. 1 to 4 and 5. In the following description, the right side (door side) in FIG. 1 will be described as the distal end direction and the left side as the proximal direction.
The thumb-turn shaft 12 of the thumb-turn device 10 has a stepped cylindrical shape having a large-diameter portion 121 on the distal end side and a small-diameter portion 122 on the proximal end side, and the proximal end portion 12a of the large-diameter portion 121 has a radially outer side. A flange 15 is formed by expanding the diameter of the flange 15. A cylindrical guide shaft portion 17 is integrally formed by a narrow portion 122 extending from the center of the flange 15 toward the proximal end of the thumb turn shaft 12.

太径部分１２１の基端部１２ａから少し先端側位置に取付溝１３が設けられ、太径部分１２１の基端部１２ａと取付溝１３との間に、サムターン軸１２を直径方向に貫通する貫通孔１４が設けられている。取付溝１３は、周方向に形成されており、図１に示すように、止めリング２０６がはめ込まれる。 A mounting groove 13 is provided at a position slightly distal to the base end portion 12a of the large-diameter portion 121, and penetrates the thumb turn shaft 12 in the diametrical direction between the base end portion 12a of the large-diameter portion 121 and the mounting groove 13. A hole 14 is provided. The mounting groove 13 is formed in the circumferential direction, and a retaining ring 206 is fitted therein as shown in FIG.

２０は、サムターン軸１２を回転可能に保持する取付座である。この実施例では取付座２０は、サムターン胴２０１と座板２０２とから構成され、座板２０２にはサムターン軸１２を回転可能に挿通し得る円筒状の挿通部２０４が形成されている。座板２０２の先端面２０５と止めリング２０６との間に筒状のスペーサ２０７が配置されることにより、サムターン軸１２は、その軸方向への移動が規制された状態で取付座２０に回転可能に保持される。
座板２０２は、上部に形成されたネジ挿通孔２０８からネジ２０９を挿入しサムターン胴２０１のネジ孔２０１ａに螺入することによりサムターン胴２０１に固着される。 Reference numeral 20 denotes a mounting seat for rotatably holding the thumb turn shaft 12. In this embodiment, the mounting seat 20 includes a thumb turn cylinder 201 and a seat plate 202, and a cylindrical insertion portion 204 through which the thumb turn shaft 12 can be rotatably inserted is formed in the seat plate 202. By disposing a cylindrical spacer 207 between the front end face 205 of the seat plate 202 and the retaining ring 206, the thumb turn shaft 12 can rotate to the mounting seat 20 in a state in which movement in the axial direction is restricted. Retained.
The seat plate 202 is fixed to the thumb turn cylinder 201 by inserting a screw 209 through a screw insertion hole 208 formed in the upper portion and screwing it into the screw hole 201a of the thumb turn cylinder 201.

サムターン軸１２の太径部分１２１の先端部は、断面十字状の係止部１２ｂに形成されており、この十字状の係止部１２ｂが、錠ケースに内蔵された出没操作機構に接続される。サムターン軸１２の太径部分１２１の基端側にツマミ１１が連結された状態でツマミ１１を回すと、サムターン軸１２の係止部１２ｂが出没操作機構を介してデッドボルト１０８を進退させることができる。 The distal end portion of the large-diameter portion 121 of the thumb turn shaft 12 is formed in a cross-shaped locking portion 12b, and this cross-shaped locking portion 12b is connected to a retracting operation mechanism built in the lock case. . When the knob 11 is turned in a state where the knob 11 is connected to the proximal end side of the large-diameter portion 121 of the thumb turn shaft 12, the locking portion 12b of the thumb turn shaft 12 can advance and retract the dead bolt 108 via the retracting operation mechanism. it can.

サムターン軸１２の太径部分１２１の基端部１２ａ寄りに設けられた前記貫通孔１４は、直径方向に貫通して開設されており、その内部にコイルバネ１８が挿入される。このコイルバネ１８の両端に、後述のホルダー４０内において球体１９，１９が周方向に摺動可能に保持されるようになっている。
前記サムターン軸１２のフランジ１５には、上下２箇所に係合凹部１６，１６がそれぞれ形成されている。これらの係合凹部１６，１６には、ツマミ１１を構成する後述の可動ブロック５の係合凸部５ｆ，５ｇが係脱可能とされる。 The through hole 14 provided near the proximal end portion 12a of the large-diameter portion 121 of the thumb turn shaft 12 is opened through in the diameter direction, and a coil spring 18 is inserted therein. At both ends of the coil spring 18, spheres 19 and 19 are held so as to be slidable in the circumferential direction in a holder 40 described later.
The flange 15 of the thumb turn shaft 12 is formed with engaging recesses 16 in two places at the top and bottom. Engaging projections 5f and 5g of the movable block 5 described later constituting the knob 11 can be engaged with and disengaged from these engaging recesses 16 and 16.

サムターン軸１２の前記ガイド軸部１７には、軸方向に等間隔をあけて周方向に第１〜第３の係止溝１７ａ，１７ｂ，１７ｃが刻設されている。 The guide shaft portion 17 of the thumb-turn shaft 12 is provided with first to third locking grooves 17a, 17b, and 17c in the circumferential direction at equal intervals in the axial direction.

ホルダー４０は、内径がサムターン軸１２の基端部側の外径よりもやや大径とされている。そして、内周面には、半径方向で対面する２箇所を他の内径よりも大径とした凹状の位置決め部２１，２１が設けられている。
この位置決め部２１，２１は、前記球体１９，１９を保持するもので、サムターン軸１２にホルダー４０を装着する際に球体１９，１９を収容しておく。
コイルバネ１８の押圧付勢により球体１９，１９が位置決め部２１，２１側に押圧され、サムターン軸１２に対してツマミ１１が回転したとき、１８０度の２位置に保持してツマミ１１を定位置に保つことができる。 The holder 40 has a slightly larger inner diameter than the outer diameter of the thumb turn shaft 12 on the proximal end side. The inner peripheral surface is provided with concave positioning portions 21 and 21 in which two locations facing each other in the radial direction are larger in diameter than other inner diameters.
The positioning portions 21 and 21 hold the spheres 19 and 19 and store the spheres 19 and 19 when the holder 40 is attached to the thumb turn shaft 12.
When the spheres 19 and 19 are pressed toward the positioning portions 21 and 21 by the pressing bias of the coil spring 18 and the knob 11 rotates with respect to the thumb turn shaft 12, the knob 11 is held at two positions of 180 degrees to bring the knob 11 into a fixed position. Can keep.

また、このホルダー４０の外周面には、一対の脚部２２，２２が突設されている。各脚部２２，２２には、ネジ挿通孔２３が形成されており、このネジ挿通孔２３にネジ２４を挿通して、ツマミピース３１のネジ孔３６ａに螺入することにより、ホルダー４０をツマミピース３１，３２に組み付けるようになっている。
ツマミ１１は、サムターン軸１２に対して回転のみ可能で軸方向への移動を規制されたツマミ本体１１ａと、ツマミ本体１１ａ内に装着され、ツマミ本体１１ａに対し軸方向に移動可能な可動部材１１ｂを備える。ツマミ本体１１ａは、一対をなすツマミピース３１，３２の開放端同士を合わせ、サムターン軸１２のフランジ１５の周囲を周方向に回転可能に構成されている。 Further, a pair of leg portions 22, 22 project from the outer peripheral surface of the holder 40. A screw insertion hole 23 is formed in each leg portion 22, 22, and a screw 24 is inserted into the screw insertion hole 23 and screwed into a screw hole 36 a of the knob piece 31. The pieces 31 and 32 are assembled.
The knob 11 can be rotated only with respect to the thumb turn shaft 12 and is restricted to move in the axial direction. The knob 11 is mounted in the knob main body 11a and is movable in the axial direction with respect to the knob main body 11a. Is provided. The knob main body 11a is configured such that the open ends of the pair of knob pieces 31 and 32 are aligned with each other so that the periphery of the flange 15 of the thumb turn shaft 12 can be rotated in the circumferential direction.

可動部材１１ｂは、可動ブロック５、ブロックカバー３３、係止部材６５，７５および押圧部材６８，７８から構成される。
可動ブロック５は、略矩形状で軸方向にガイド穴５ａが形成されている。このガイド穴５ａは、前記ガイド軸部１７よりもやや大径で、このガイド軸部１７が挿通されることにより、可動ブロック５が回転可能で、且つ、軸方向移動可能に保持される。
可動ブロック５に設けられたガイド穴５ａにガイド軸部１７が挿通され、可動ブロック５を介して可動部材１１ｂがガイド軸部１７に対して回動自在に、且つ、軸方向に移動可能に保持される。 The movable member 11b includes the movable block 5, the block cover 33, the locking members 65 and 75, and the pressing members 68 and 78.
The movable block 5 is substantially rectangular and has a guide hole 5a formed in the axial direction. The guide hole 5a has a slightly larger diameter than the guide shaft portion 17, and when the guide shaft portion 17 is inserted, the movable block 5 can be rotated and held in an axially movable manner.
A guide shaft portion 17 is inserted into a guide hole 5 a provided in the movable block 5, and the movable member 11 b is held to be movable with respect to the guide shaft portion 17 and movable in the axial direction via the movable block 5. Is done.

可動ブロック５には、上面から下方に向けて第１摺動溝６１が形成され、下面から上方に向けて第２摺動溝７１が形成されている。第２摺動溝７１は第１摺動溝６１より先端側に間隔ｘを置いて形成されている。第１、第２摺動溝６１，７１はガイド穴５ａを径方向に越える位置まで形成されている。第１摺動溝６１と対向する下面には、第１バネ収納穴６３が開けられ、第２摺動溝７１と対向する上面には第２バネ収納穴７３が開けられている。第１バネ収納穴６３および第２バネ収納穴７３は、径方向に向けてガイド穴５ａに達しない深さで形成されている。第１摺動溝６１の溝底６１ａは第１バネ収納穴６３の穴底６３ａより下面寄りに深く形成され、第２摺動溝７１の溝底７１ａは第２バネ収納穴７３の穴底７３ａより上面寄りまで深く形成されている。 In the movable block 5, a first sliding groove 61 is formed downward from the upper surface, and a second sliding groove 71 is formed upward from the lower surface. The second sliding groove 71 is formed at a distance x from the distal end side of the first sliding groove 61. The first and second sliding grooves 61 and 71 are formed up to a position exceeding the guide hole 5a in the radial direction. A first spring housing hole 63 is formed in the lower surface facing the first sliding groove 61, and a second spring housing hole 73 is opened in the upper surface facing the second sliding groove 71. The first spring storage hole 63 and the second spring storage hole 73 are formed with a depth that does not reach the guide hole 5a in the radial direction. The groove bottom 61 a of the first sliding groove 61 is formed deeper toward the lower surface than the hole bottom 63 a of the first spring housing hole 63, and the groove bottom 71 a of the second sliding groove 71 is the hole bottom 73 a of the second spring housing hole 73. It is formed deeper to the upper surface.

第１摺動溝６１には、第１係止部材６５の先端部６５ｃが上下方向に摺動可能に差し込まれ、第２摺動溝７１には、第２係止部材７５の先端部７５ｃが上下方向に摺動可能に差し込まれている。第１係止部材６５の上端部には、Ｌ字形の屈曲部６７が形成され、第１押圧部材６８の下部に係合されている。第２係止部材７５の下端部には、逆向きのＬ字形の屈曲部７７が形成され、第２押圧部材７８の上部に係合されている。第１係止部材６５と第１押圧部材６８とは一体に、第２係止部材７５と第２押圧部材７８とは一体に動く。第１係止部材６５には、軸挿通孔６６が設けられ、第２係止部材７５には、軸挿通孔７６が設けられている。軸挿通孔６６、７６は、ガイド軸部１７が挿通可能で、且つ、回転可能な大きさ・形状であり、実施例ではガイド軸部１７よりわずかに径の大きい円形である。 A distal end portion 65c of the first locking member 65 is inserted into the first sliding groove 61 so as to be slidable in the vertical direction, and a distal end portion 75c of the second locking member 75 is inserted into the second sliding groove 71. It is slidably inserted in the vertical direction. An L-shaped bent portion 67 is formed at the upper end portion of the first locking member 65 and is engaged with the lower portion of the first pressing member 68. At the lower end of the second locking member 75, an inverted L-shaped bent portion 77 is formed and engaged with the upper portion of the second pressing member 78. The first locking member 65 and the first pressing member 68 move integrally, and the second locking member 75 and the second pressing member 78 move integrally. The first locking member 65 is provided with a shaft insertion hole 66, and the second locking member 75 is provided with a shaft insertion hole 76. The shaft insertion holes 66 and 76 have a size and shape in which the guide shaft portion 17 can be inserted and rotated. In the embodiment, the shaft insertion holes 66 and 76 have a circular shape slightly larger in diameter than the guide shaft portion 17.

第１バネ収納穴６３、第２バネ収納穴７３には、第１コイルバネ６４、第２コイルバネ７４が収納されている。
第１押圧部材６８には第２バネ収納穴７３を覆う被覆部６８ａが一体に形成され、第２コイルバネ７４の径方向外端７４ａが当接している。第２押圧部材７８には第１バネ収納穴６３を覆う被覆部７８ａが一体に形成され、第１コイルバネ６４の径方向外端６４ａが当接している。第１係止部材６５の先端６５ｃは第１コイルバネ６４の内端６４ｂに当接し、第２係止部材７５の先端７５ｃは第２コイルバネ７４の内端７４ｂに当接している。これにより第１係止部材６５、第２係止部材７５は径方向外側に付勢される。 A first coil spring 64 and a second coil spring 74 are stored in the first spring storage hole 63 and the second spring storage hole 73.
The first pressing member 68 is integrally formed with a covering portion 68a that covers the second spring housing hole 73, and a radially outer end 74a of the second coil spring 74 is in contact therewith. The second pressing member 78 is integrally formed with a covering portion 78a that covers the first spring housing hole 63, and a radially outer end 64a of the first coil spring 64 is in contact therewith. The distal end 65 c of the first locking member 65 is in contact with the inner end 64 b of the first coil spring 64, and the distal end 75 c of the second locking member 75 is in contact with the inner end 74 b of the second coil spring 74. As a result, the first locking member 65 and the second locking member 75 are urged radially outward.

第１押圧部材６８は内径方向を内方向規制面６８ａによって規制され、外径方向を外方向規制面６８ｂによって規制されている。同様に第２押圧部材７８は内径方向を内方向規制面７８ａによって規制され、外径方向を外方向規制面７８ｂによって規制されている。これにより第１押圧部材６８、第２押圧部材７８は径方向の所定間隔内を移動可能である。第１押圧部材６８の外方向規制面６８ｂが当接しているとき軸挿通孔６６はガイド軸部１７と径方向に一致しない位置にあり、第１押圧部材６８が内方向規制面に当接しているとき軸挿通孔６６はガイド軸部１７と径方向に一致する位置にある。 The first pressing member 68 is regulated in the inner diameter direction by the inner-direction regulating surface 68a, and the outer diameter direction is regulated by the outer-direction regulating surface 68b. Similarly, in the second pressing member 78, the inner diameter direction is restricted by the inward restriction surface 78a, and the outer diameter direction is restricted by the outer direction restriction surface 78b. Thereby, the 1st press member 68 and the 2nd press member 78 can move within the predetermined space | interval of radial direction. When the outer-direction restricting surface 68b of the first pressing member 68 is in contact, the shaft insertion hole 66 is in a position that does not coincide with the guide shaft portion 17 in the radial direction, and the first pressing member 68 is in contact with the inner-direction restricting surface. The shaft insertion hole 66 is in a position that coincides with the guide shaft portion 17 in the radial direction.

さらに、この可動ブロック５には、先端側の端面上下に係合凸部５ｆ，５ｇが突設されている。これらの係合凸部５ｆ，５ｇは、前記サムターン軸１２のフランジ１５に設けた係合凹部１６，１６にそれぞれ係合可能な形状となっていて、係合時に可動ブロック５とサムターン軸１２とは一体的に回転する。
また、この可動ブロック５は、基端側の端面上下にＬ字状および逆Ｌ字状の被噛合部５ｈ，５ｉが突設されている。これら被噛合部５ｈ，５ｉには、ブロックカバー３３の噛合部３３ｂ，３３ｃが噛合され一体となる。 Further, the movable block 5 is provided with protruding protrusions 5f and 5g on the top and bottom of the end face on the tip side. These engaging projections 5f and 5g are shaped to be able to engage with engaging recesses 16 and 16 provided in the flange 15 of the thumb turn shaft 12, respectively. When engaged, the movable block 5 and the thumb turn shaft 12 Rotate together.
Further, the movable block 5 has L-shaped and inverted L-shaped meshed portions 5h and 5i projecting from the upper and lower end surfaces on the base end side. The meshed portions 5 b and 33 are meshed with the meshed portions 33 b and 33 c of the block cover 33.

ツマミ本体１１ａを構成する左右のツマミピース３１，３２は、それぞれ板状に形成された二つ割り構造となっており、その各開放端部同士を重ね合わせるように突き合せて、その軸挿通孔内に前記可動ブロック５を収容可能となっている。
そして、各ツマミピース３１，３２の外表面には、湾曲状に凹んだ把持部３１ａ，３２ａが設けられており、手指で左右のツマミピース３１，３２を把持操作し易いようにしている。 The left and right knob pieces 31, 32 constituting the knob body 11 a have a split structure formed in a plate shape, and the open ends thereof are butted together so as to overlap each other in the shaft insertion hole. The movable block 5 can be accommodated.
And the grip parts 31a and 32a dented in the curved shape are provided in the outer surface of each knob piece 31 and 32, and it makes it easy to hold | grip the left and right knob pieces 31 and 32 with a finger.

左側ツマミピース３１には、先端部内面の上下部に周縁に沿って側壁３５，３５が立設されている。そして、この各側壁３５，３５には、互いに向き合う接合部３６，３６がそれぞれ設けられている。各接合部３６，３６には、ネジ孔３６ａ，３６ａが形成されており、前記ホルダー４０側からのネジ２４が螺入される。
また、右側ツマミピース３２には、先端部内面の上下部に互いに内向きの被接合部３７，３７が突設されている。この被接合部３７，３７には、ネジ挿通孔３７ａ，３７ａがそれぞれ形成されており、前記ホルダー４０側からのネジ２４が挿通される。 The left knob piece 31 has side walls 35, 35 erected along the peripheral edge at the upper and lower portions of the inner surface of the tip portion. The side walls 35 and 35 are provided with joint portions 36 and 36 that face each other. Screw holes 36a and 36a are formed in the joint portions 36 and 36, and the screws 24 from the holder 40 side are screwed into the joint portions 36 and 36.
Further, the right knob piece 32 is provided with inwardly bonded portions 37, 37 projecting in the upper and lower portions of the inner surface of the distal end portion. Screw insertion holes 37a and 37a are formed in the joined portions 37 and 37, respectively, and the screws 24 from the holder 40 side are inserted therethrough.

なお、接合部３６，３６と被接合部３７，３７とは、左右のツマミピース３１，３２を重ね合わせたとき、前後方向で相互に接合する位置に形成されている。これにより、両者の接合位置では、ネジ孔３６ａ，３６ａとネジ挿通孔３７ａ，３７ａとが一致する。
よって、ホルダー４０のネジ挿通孔２３，２３およびネジ挿通孔３７ａ，３７ａを介して前記ネジ２４をネジ孔３６ａ，３６ａに螺入することにより、ホルダー４０と左右のツマミピース３１，３２とが一体的に組み付けられる。 The joining portions 36 and 36 and the joined portions 37 and 37 are formed at positions where the left and right knob pieces 31 and 32 are joined to each other in the front-rear direction. Thereby, screw hole 36a, 36a and screw penetration hole 37a, 37a correspond in both joining position.
Therefore, by screwing the screw 24 into the screw holes 36a, 36a through the screw insertion holes 23, 23 and the screw insertion holes 37a, 37a of the holder 40, the holder 40 and the left and right knob pieces 31, 32 are integrated. Assembled.

また、左右のツマミピース３１，３２には、裏面先端側において半円形状に凹む切欠き３９が形成されている。この切欠き３９は、前記サムターン軸１２のフランジ１５の外径に対応しており、サムターン軸１２を挟んで左右のツマミピース３１，３２を重ね合わせたとき、切欠き３９内にフランジ１５が位置する。
さらに、左側ツマミピース３１の裏面基端側には、板面に対して垂直な２本の支軸３８，３８が突設されている。この支軸３８，３８は、左右のツマミピース３１，３２を重ね合わせたとき、ガイド軸部１７の基端側における位置決め作用を果たすとともに、右側ツマミピース３２の裏面に当接して左右のツマミピース３１，３２間の間隔を保持する。 Further, the left and right knob pieces 31 and 32 are formed with notches 39 that are recessed in a semicircular shape on the front end side of the back surface. The notch 39 corresponds to the outer diameter of the flange 15 of the thumb turn shaft 12. When the left and right knob pieces 31, 32 are overlapped with the thumb turn shaft 12, the flange 15 is located in the notch 39. To do.
Further, two support shafts 38, 38 perpendicular to the plate surface are projected from the rear surface proximal end side of the left knob piece 31. When the left and right knob pieces 31 and 32 are overlapped, the support shafts 38 and 38 perform a positioning operation on the proximal end side of the guide shaft portion 17 and abut against the back surface of the right knob piece 32 so that the left and right knob pieces are in contact with each other. The interval between 31 and 32 is maintained.

ブロックカバー３３は、本体部３３ａの基端面が弓形状で、外周面を左右のツマミピース３１，３２の基端面に略等しい形状にしている。
このブロックカバー３３は、内周面の上部にＬ字状の噛合部３３ｂが、下部に逆Ｌ字状の噛合部３３ｃがそれぞれ突設されている。これらの噛合部３３ｂ，３３ｃは、前記可動ブロック５の被噛合部５ｈ，５ｉに噛合可能な形状となっている。
これにより、被噛合部５ｈ，５ｉの延出方向に合わせて噛合部３３ｂ，３３ｃを挿入して接合すると、両者が噛み合ってブロックカバー３３を可動ブロック５に一体化することができる。 As for the block cover 33, the base end surface of the main-body part 33a is bow-shaped, and the outer peripheral surface is made into the shape substantially equal to the base end surface of the left and right knob pieces 31 and 32. FIG.
The block cover 33 is provided with an L-shaped engagement portion 33b at the upper portion of the inner peripheral surface and an inverted L-shaped engagement portion 33c at the lower portion. These meshing portions 33 b and 33 c have shapes that can mesh with the meshed portions 5 h and 5 i of the movable block 5.
As a result, when the meshing portions 33b and 33c are inserted and joined in accordance with the extending direction of the meshed portions 5h and 5i, they are meshed so that the block cover 33 can be integrated with the movable block 5.

本実施例のサムターン装置１０の組立構造について概要を説明する。
まず、第１押圧部材６８に第１係止部材６５のＬ字形の屈曲部６７を係止し、第２押圧部材７７に第２係止部材７５のＬ字形の屈曲部７８を係止する。
そして、可動ブロック５の第１バネ収納穴６３、第２バネ収納穴７３に、コイルバネ６４，７４をそれぞれ収納した状態で、第１摺動溝６１に第１係止部材６５の先端部６５ｃを係止し、かつ、第２摺動溝７１に第２係止部材７５の先端部７５ｃを係止する。
コイルバネ６４，７４の各一端が、第１押圧部材６８、第２押圧部材７８の各被覆部６８ａ，７８ａの底面にそれぞれ当接する。 An outline of the assembly structure of the thumb turn device 10 of this embodiment will be described.
First, the L-shaped bent portion 67 of the first locking member 65 is locked to the first pressing member 68, and the L-shaped bent portion 78 of the second locking member 75 is locked to the second pressing member 77.
Then, in a state where the coil springs 64 and 74 are housed in the first spring housing hole 63 and the second spring housing hole 73 of the movable block 5, the distal end portion 65 c of the first locking member 65 is inserted into the first sliding groove 61. The distal end portion 75 c of the second locking member 75 is locked in the second sliding groove 71.
One end of each of the coil springs 64 and 74 comes into contact with the bottom surface of each of the covering portions 68a and 78a of the first pressing member 68 and the second pressing member 78, respectively.

次いで、第１、第２押圧部材６８，７８の押圧部６８ｄ，７８ｄを例えば親指と人差し指で把持し、コイルバネ６４，７４の弾発力に抗して各被覆部６８ａ，７８ａの底面が可動ブロック５の上面および下面に当接する位置まで第１押圧部材６８を押し下げ、第２押圧部材７８を押し上げる。
このとき、可動ブロック５のガイド穴５ａと第１、第２係止部材６５，７５の各軸挿通孔６６，７６とが一致する。 Next, the pressing portions 68d and 78d of the first and second pressing members 68 and 78 are gripped by, for example, the thumb and forefinger, and the bottom surfaces of the covering portions 68a and 78a are movable blocks against the elastic force of the coil springs 64 and 74. 5, the first pressing member 68 is pushed down to a position where it abuts against the upper surface and the lower surface and the second pressing member 78 is pushed up.
At this time, the guide hole 5a of the movable block 5 and the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 coincide with each other.

可動ブロック５の被噛合部５ｈ，５ｉに、ブロックカバー３３の噛合部３３ｂ，３３ｃを噛合させ、ガイド穴５ａにサムターン軸１２のガイド軸部１７を挿入し可動ブロック５がブロックカバー３３に当接させると、第１，第２係止溝１７ａ、１７ｂに第１、第２係止部材６５，７５の各軸挿通孔６６，７６が一致した位置で止まる。
ここで、押圧部材６８，７８を放すと、コイルバネ６４，７４の弾発力により第１、第２係止部材６５，７５が移動し、各軸挿通孔６６，７６の周縁が第１、第２係止溝１７ａ，１７ｂにそれぞれ係止される。この状態は、図２〜４に示すように、可動ブロック５の係合凸部５ｆ，５ｇがサムターン軸１２の係合凹部１６，１６と非係合位置にあり、サムターン軸１２に対して、ツマミ１１は空転する状態となっており、この状態に保持される。 The engaging portions 33 b and 33 c of the block cover 33 are engaged with the engaged portions 5 h and 5 i of the movable block 5, the guide shaft portion 17 of the thumb turn shaft 12 is inserted into the guide hole 5 a, and the movable block 5 contacts the block cover 33. As a result, the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 stop at the positions where the first and second locking grooves 17a and 17b coincide with each other.
Here, when the pressing members 68 and 78 are released, the first and second locking members 65 and 75 are moved by the elastic force of the coil springs 64 and 74, and the peripheral edges of the shaft insertion holes 66 and 76 are the first and first. 2 are engaged with the engaging grooves 17a and 17b, respectively. In this state, as shown in FIGS. 2 to 4, the engaging convex portions 5 f and 5 g of the movable block 5 are in the non-engaging positions with the engaging concave portions 16 and 16 of the thumb turn shaft 12. The knob 11 is in an idling state and is held in this state.

可動ブロック５にブロックカバー３３を噛合したとき、ブロックカバー３３の先端面が第１、第２押圧部材６８，７８の基端をそれぞれ支持する。
上記の、ツマミ１１の空転状態の保持位置では、第１、第２押圧部材６８，７８が、コイルバネ６４，７４の弾発力により径方向外側へ押圧力により付勢され第１、第２押圧部材６８，７８はツマミピース３１，３２の上、下端部より突出した状態にある。
なお、ツマミピース３１，３２は、左右のツマミピース３１，３２を重ね合わせ、軸方向に隣接して位置する接合部３６と被接合部３７とを合わせる。
このとき、各接合部３６のネジ孔３６ａと被接合部３７のネジ挿通孔３７ａとが一致する。 When the block cover 33 is engaged with the movable block 5, the front end surfaces of the block cover 33 support the base ends of the first and second pressing members 68 and 78, respectively.
At the holding position of the knob 11 in the idling state described above, the first and second pressing members 68 and 78 are urged by the pressing force radially outward by the elastic force of the coil springs 64 and 74, respectively. The members 68 and 78 protrude from the upper and lower ends of the knob pieces 31 and 32.
In addition, the knob pieces 31 and 32 overlap the left and right knob pieces 31 and 32 to match the joining portion 36 and the joined portion 37 that are positioned adjacent to each other in the axial direction.
At this time, the screw hole 36a of each joint part 36 and the screw insertion hole 37a of the joined part 37 coincide.

サムターン軸１２の貫通孔１４にはコイルバネ１８を挿入しておき、その両端にボール１９，１９を置いた状態で組み込まれる。
そして、ホルダー４０の位置決め部２１，２１内にボール１９，１９を保持した状態で、ツマミピース３１，３２にホルダー４０の各脚部２２，２２が組み付けられ、脚部２２，２２のネジ挿通孔２３にネジ２４を挿通し、ツマミピース３１のネジ孔３６ａにそれぞれ螺入される。 A coil spring 18 is inserted into the through-hole 14 of the thumb-turn shaft 12 and assembled with the balls 19 and 19 placed on both ends thereof.
Then, with the balls 19 and 19 held in the positioning portions 21 and 21 of the holder 40, the leg portions 22 and 22 of the holder 40 are assembled to the knob pieces 31 and 32, and the screw insertion holes of the leg portions 22 and 22 are assembled. The screw 24 is inserted into the screw 23 and screwed into the screw hole 36a of the knob piece 31.

これによりツマミピース３１，３２に押圧部材６８，７８が保持された状態でホルダー４０が組み付けられる。ホルダー４０の内面は球体が滑らかに摺動し得る円筒面に形成され、１８０度ごとに位置する位置決め部２１において内径がやや大きく形成されており、これによってサムターン軸に対するツマミ１１の周方向の位置決めがなされている。球体１９が位置決め部２１に位置するとき、可動ブロック５の係合凸部５ｆ，５ｇがサムターン軸１２の係合凹部１６に係合可能な対応位置にある。なお、サムターン軸に対するツマミ１１の周方向の位置決めは対応する面に異なる磁極の磁石を設けることにより行うこともできる。 As a result, the holder 40 is assembled in a state where the pressing members 68 and 78 are held on the knob pieces 31 and 32. The inner surface of the holder 40 is formed as a cylindrical surface on which the sphere can smoothly slide, and the inner diameter is slightly larger at the positioning portion 21 positioned every 180 degrees, thereby positioning the knob 11 in the circumferential direction with respect to the thumb turn shaft. Has been made. When the sphere 19 is positioned at the positioning portion 21, the engagement convex portions 5 f and 5 g of the movable block 5 are in corresponding positions where the engagement concave portions 16 of the thumb turn shaft 12 can be engaged. The positioning of the knob 11 with respect to the thumb turn axis in the circumferential direction can also be performed by providing magnets with different magnetic poles on the corresponding surfaces.

空転モードでは、図２に示すように押圧部材６８，７８の各先端側とツマミピース３１，３２の各側壁３５，３５との間に間隙Ｇが生じている。
よって、押圧部材６８，７８が、ツマミピース３１，３２の各側壁３５，３５の間において進退可能となる。
これにより、可動部材１１ｂを軸方向に移動し得るツマミ１１が構成される。 In the idling mode, as shown in FIG. 2, gaps G are generated between the tip ends of the pressing members 68 and 78 and the side walls 35 and 35 of the knob pieces 31 and 32.
Therefore, the pressing members 68 and 78 can advance and retreat between the side walls 35 and 35 of the knob pieces 31 and 32.
Thereby, the knob 11 which can move the movable member 11b to an axial direction is comprised.

すなわち、可動ブロック５が基端側に位置するときは、第１、第２係止部材６５，７５の各軸挿通孔６６，７６がガイド軸部１７の第１、第２係止溝１７ａ，１７ｂにそれぞれ係止される。
このときは、図２に示すように、サムターン軸１２のフランジ１５の係合凹部１６から可動ブロック５の係合凸部５ｆ，５ｇが離脱しており、サムターン軸１２に対しツマミ１１は空転する状態の空転モードであり自在に回転可能であるが、ツマミ１１を回転してもサムターン軸１２は回動しない。 That is, when the movable block 5 is located on the proximal end side, the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 are connected to the first and second locking grooves 17a and 17a of the guide shaft portion 17, respectively. 17b, respectively.
At this time, as shown in FIG. 2, the engaging convex portions 5 f and 5 g of the movable block 5 are detached from the engaging concave portion 16 of the flange 15 of the thumb turn shaft 12, and the knob 11 rotates idly with respect to the thumb turn shaft 12. The idle rotation mode in this state is freely rotatable, but the thumb turn shaft 12 does not rotate even when the knob 11 is rotated.

次に、押圧部材６８，７８を把持して押し込むと、可動ブロック５のガイド穴５ａの中心と第１、第２係止部材６５，７５の各軸挿通孔６６，７６の中心とが一致する。
この状態で、押圧部材６８，７８を先端方向に押すと可動ブロック５が先端方向に移動する。 Next, when the pressing members 68 and 78 are gripped and pushed in, the center of the guide hole 5a of the movable block 5 and the center of the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 coincide. .
In this state, when the pressing members 68 and 78 are pushed in the distal direction, the movable block 5 moves in the distal direction.

すると、図９〜１１に示す如く第２、第３係止溝１７ｂ，１７ｃに第１、第２係止部材６５，７５の各軸挿通孔６６，７６の周縁が係止される。
このとき、図９、図１０に示すようにフランジ１５の係合凹部１６，１６に可動ブロック５の係合凸部５ｆ，５ｇが係合されて、ツマミ１１とサムターン軸１２とが連結状態となり、ツマミ１１の回転によりサムターン軸１２を回転操作可能な状態の操作モードの位置になる。
即ち、この操作モードの位置で、ツマミ１１を左右の何れかに回すと、サムターン軸１２も一体的に回転する。 Then, as shown in FIGS. 9 to 11, the peripheral edges of the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 are locked in the second and third locking grooves 17b and 17c.
At this time, as shown in FIGS. 9 and 10, the engaging protrusions 5f and 5g of the movable block 5 are engaged with the engaging recesses 16 and 16 of the flange 15, and the knob 11 and the thumb turn shaft 12 are connected. The thumb turn shaft 12 can be rotated by the rotation of the knob 11 to be in the operation mode position.
That is, when the knob 11 is rotated to the left or right at the position of this operation mode, the thumb turn shaft 12 also rotates integrally.

本実施例のサムターン装置１０は、空転モード（ツマミ１１の可動部材１１ｂとサムターン軸１２との非係合状態）においては、サムターン回しなどの不正解錠操作によりツマミ１１を回転しても、ツマミ１１は空転するだけで、サムターン軸１２は回転しないので扉錠を開錠することはできない。 The thumb turn device 10 according to the present embodiment is configured so that in the idling mode (the movable member 11b of the knob 11 is not engaged with the thumb turn shaft 12), even if the knob 11 is rotated by an illegal unlocking operation such as thumb turn, the knob 11 11 simply runs idle, and the thumb turn shaft 12 does not rotate, so the door lock cannot be unlocked.

ツマミ１１をサムターン軸１２に係合させるには、各押圧部材６８，７８を指でつかみ、コイルバネ６４，７４の付勢力に対抗して径方向内側へ押し込み、そのまま押圧部材６８，７８をサムターン軸１２の先端側に向けて移動させて係合させる。この際、押圧部材６８，７８が一対配置されているため、何れか１個のみ設けられている場合に比して均等な力が両方に加わらない限り、ツマミ１１をサムターン軸１２に係合させることは困難であり、工具を利用して不正解錠することがきわめて困難となる。
押圧部材６８，７８が軸径方向に押し込まれて内端まで移動すると、図６〜８に示すように、第１、第２係止部材６５，７５の各軸挿通孔６６，７６が、ガイド軸部１７と略一致する位置となりガイド軸部１７を軸方向に摺動可能となる。 In order to engage the knob 11 with the thumb turn shaft 12, each of the pressing members 68 and 78 is grasped with a finger and pushed inward in the radial direction against the urging force of the coil springs 64 and 74, and the pressing members 68 and 78 are directly moved to the thumb turn shaft. It moves toward the front end side of 12 and engages. At this time, since a pair of pressing members 68 and 78 are arranged, the knob 11 is engaged with the thumb turn shaft 12 unless a uniform force is applied to both as compared with the case where only one of them is provided. It is difficult to perform unauthorized unlocking using a tool.
When the pressing members 68 and 78 are pushed in the axial direction and moved to the inner end, the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 are guided as shown in FIGS. The guide shaft portion 17 can be slid in the axial direction at a position substantially coincident with the shaft portion 17.

そして、図１０に示すように可動ブロック５のガイド軸１７上の先端側への移動が規制された時点で押圧部材６８，７８の把持を止めると、図９〜１１に示すように、コイルバネ６４，７４の付勢力によって第１、第２係止部材６５，７５が径方向外側に移動し、その軸挿通孔６６内縁が第２係止溝１７ｂに，軸挿通孔７６の内縁が第３係止溝１７ｃに係止される。
この状態では、サムターン軸１２のフランジ１５の係合凹部１６，１６に可動ブロック５の係合凸部５ｆ，５ｇが係合されて、ツマミ１１とサムターン軸１２とが連結状態となり、ツマミ１１とサムターン軸１２とが一体的に回転する操作モードの位置になる。
ここで、ツマミ１１を左右の何れかに回すと、サムターン軸１２も一体的に回転し、扉錠１のデッドボルト１０８が戸先側端面から出没する。このデッドボルト１０８の出没、つまり前進または後退によって施錠、解錠がなされる。 Then, when the gripping of the pressing members 68 and 78 is stopped when the movement of the movable block 5 to the front end side on the guide shaft 17 is restricted as shown in FIG. 10, the coil spring 64 is shown in FIGS. , 74 move the first and second locking members 65, 75 radially outward, the inner edge of the shaft insertion hole 66 is in the second locking groove 17b, and the inner edge of the shaft insertion hole 76 is the third engagement. Locked in the stop groove 17c.
In this state, the engaging convex portions 5f and 5g of the movable block 5 are engaged with the engaging concave portions 16 and 16 of the flange 15 of the thumb turn shaft 12, and the knob 11 and the thumb turn shaft 12 are connected to each other. It becomes the position of the operation mode in which the thumb turn shaft 12 rotates integrally.
Here, when the knob 11 is turned to either the left or right, the thumb turn shaft 12 also rotates integrally, and the dead bolt 108 of the door lock 1 appears and disappears from the door end side end surface. The deadbolt 108 is locked and unlocked by moving up and down, that is, moving forward or backward.

本実施例のサムターン装置１０も、通常のサムターン装置と同様に、ツマミ１１は、解錠時が縦向き状態とされ、施錠時が横向き状態とされる（図１２、図１３は、共に施錠時の横向き状態を示す。）。
空転モードにおいては、上述のコイルバネ１８と球体１９，１９の配置により、ツマミ１１はサムターン軸１２に対して、１８０度毎に周方向の位置決めがなされる。
よって、ツマミ１１の長方形状の基端面を、解錠状態では縦向き状態とすると共に、施錠状態では横向き状態となるように取り付けることで、位置決めが自動的になされ、施錠状態か解錠状態であるかを常に正しく視認することが可能となる。 Similarly to the normal thumb turn device, the thumb turn device 10 according to the present embodiment is also in a state in which the knob 11 is in the vertical state when unlocked and in the horizontal state in the locked state (FIGS. 12 and 13 are both in the locked state). Shows the sideways state.)
In the idling mode, the knob 11 is positioned in the circumferential direction with respect to the thumb turn shaft 12 every 180 degrees by the arrangement of the coil spring 18 and the spheres 19 and 19 described above.
Therefore, the rectangular base end surface of the knob 11 is placed in a vertically oriented state in the unlocked state and attached in a horizontally oriented state in the locked state, so that the positioning is automatically performed, and in the locked state or the unlocked state. It is possible to always visually recognize whether or not there is.

ところで、本実施例のサムターン装置１０は、上述したように、施錠、解錠の際にツマミ１１とサムターン軸１２とを係合させる必要があり、空転モードではツマミ１１とサムターン軸１２とは係合しておらず、ツマミ１１はサムターン軸１２に対して空転する。
空転モードでは、図１２（ａ）〜（ｄ）に示すように、ブロックカバー３３がツマミピース３１，３２の外周縁から外方に突出し、つまみ１１が空転モードにあることを視認できる。
そして、この空転モードにおいて、不正解錠しようと室外側から針金や紐などでツマミ１１を回転させても、サムターン軸１２に対してツマミ１１が単に空転するだけで、サムターン軸１２を回転させることができず、扉錠の不正解錠が防止される。 By the way, as described above, the thumb turn device 10 of this embodiment needs to engage the knob 11 and the thumb turn shaft 12 at the time of locking and unlocking. In the idling mode, the knob 11 and the thumb turn shaft 12 are engaged. The knob 11 is idle with respect to the thumb turn shaft 12.
In the idling mode, as shown in FIGS. 12A to 12D, the block cover 33 protrudes outward from the outer peripheral edges of the knob pieces 31 and 32, and it can be visually confirmed that the knob 11 is in the idling mode.
In this idling mode, even if the knob 11 is rotated with a wire or a string from the outdoor side in order to unlock it illegally, the knob 11 is merely idly rotated with respect to the thumb turn axis 12 to rotate the thumb turn axis 12. This prevents the door lock from being illegally unlocked.

特に、本実施例のサムターン装置１０は、コイルバネ６４，７５により押圧部材６８，７８が径方向外側に押圧付勢力を受けている。
また、第１、第２係止溝１７ａ，１７ｂに第１、第２係止部材６５，７５の各軸挿通孔６６，７６の内縁が係止されて移動が規制されている。
従って、例えば不正解錠をするために、針金などの道具を用いて押圧部材６８，７８を押し込もうとした場合、サムターン軸１２の径方向内側へ押し込み、さらに、ツマミ１１の可動部材１１ｂを軸方向先端側へ移動させなければならず、このような一連の操作はほとんど不可能である。 In particular, in the thumb turn device 10 of this embodiment, the pressing members 68 and 78 receive the pressing biasing force radially outward by the coil springs 64 and 75.
Further, the inner edges of the shaft insertion holes 66 and 76 of the first and second locking members 65 and 75 are locked in the first and second locking grooves 17a and 17b, so that the movement is restricted.
Therefore, for example, when trying to push the pressing members 68 and 78 using a tool such as a wire in order to perform unauthorized unlocking, the pressing members 68 and 78 are pushed inward in the radial direction of the thumb turn shaft 12, and further, the movable member 11b of the knob 11 is pushed. Such a series of operations is almost impossible because it must be moved toward the tip end in the axial direction.

このように、本実施例のサムターン装置１０によれば、施錠、解錠するためには、ツマミ１１の各押圧部材６８，７８をサムターン軸１２の径方向内側へ押し込むと共に、軸方向先端側へ移動させる必要がある。これらの押し込み移動操作を室外側から工具等により行うことは困難であり、不正解錠が防止される。
また、室内に人がいるときには、押圧部材６８，７８を押し込むと共に可動部材１１ｂを軸方向先端側に移動させてツマミ１１とサムターン軸１２とを連結した状態、即ち操作モードの位置に移動させておくことによりツマミ１１で、施錠、解錠操作する場合、押圧部材６８，７８を押し込んだり移動させると言う格別の操作は不要で、従来のツマミと同様、単に回転するだけで施錠、解錠ができるので手際に便利である。操作する際毎に可動部材を先端方向に押す必要なく操作できるものである。
係止部材の半径方向外端に、係止部材と一体に設けられた押圧部材が設けられ、ツマミ本体の外部から操作可能であることにより、操作性がよく、さらに押圧部材の移動位置が前記ツマミ本体の外部から視認可能であることにより、押圧部材の位置でモードの状態が確認できる。
またブロックカバー等を設けることによりモードの状態の確認がよりし易くなるものであり、さらにまた、ツマミの位置決めにより、ツマミを操作モードにする時、必ず正しい向きになるので、従来と同様ツマミの向きによって施錠、解錠状態が一目で判別できる。 As described above, according to the thumb turn device 10 of the present embodiment, in order to lock and unlock, the pressing members 68 and 78 of the knob 11 are pushed inward in the radial direction of the thumb turn shaft 12 and toward the distal end in the axial direction. Must be moved. It is difficult to perform these push-in movement operations from outside with a tool or the like, and unauthorized unlocking is prevented.
Further, when there is a person in the room, the pressing members 68 and 78 are pushed in and the movable member 11b is moved to the distal end side in the axial direction so that the knob 11 and the thumb turn shaft 12 are connected, that is, moved to the position of the operation mode. Therefore, when the knob 11 is locked and unlocked, there is no need to push or move the pressing members 68 and 78. Like the conventional knob, the knob 11 can be locked and unlocked simply by rotating. It is convenient because it can be done. The movable member can be operated without having to push the movable member in the distal direction every time it is operated.
A pressing member provided integrally with the locking member is provided at the radially outer end of the locking member, and is operable from the outside of the knob body, so that the operability is good, and the movement position of the pressing member is By being visible from the outside of the knob body, the mode state can be confirmed at the position of the pressing member.
In addition, it is easier to check the mode status by providing a block cover, etc.Furthermore, the positioning of the knob will always be in the correct orientation when setting the knob to the operation mode. The locked and unlocked state can be discriminated at a glance according to the direction.

本実施例のサムターン装置の空転モードの状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state of the idling mode of the thumb turn apparatus of a present Example. 図１のＸ−Ｘ線に沿う縦断面図である。It is a longitudinal cross-sectional view which follows the XX line of FIG. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図２のＢ―Ｂ断面図である。FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2. サムターン装置を構成する各部品を示す展開斜視図である。It is an expansion | deployment perspective view which shows each component which comprises a thumb turn apparatus. サムターン装置の押圧部材を押し込んで先端方向に少し移動した状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state which pushed the pressing member of the thumb turn apparatus and moved a little in the front end direction. 図６のサムターン軸に沿う横断面図である。FIG. 7 is a cross-sectional view taken along the thumb turn axis of FIG. 6. 図７のＡ−Ａ断面図である。It is AA sectional drawing of FIG. サムターン装置の操作モードを示す縦断面図である。It is a longitudinal cross-sectional view which shows the operation mode of a thumb turn apparatus. 図９のサムターン軸に沿う横断面図である。FIG. 10 is a transverse sectional view taken along the thumb turn axis of FIG. 9. 図１０のＡ−Ａ断面図である。It is AA sectional drawing of FIG. サムターン装置のツマミが空転位置にある状態を示す説明図であり、（ａ）は斜視図、（ｂ）は平面図、（ｃ）は左側面図、（ｅ）は正面図である。It is explanatory drawing which shows the state in which the knob of a thumb turn apparatus exists in an idling position, (a) is a perspective view, (b) is a top view, (c) is a left view, (e) is a front view. サムターン装置のツマミが操作位置にある状態を示す説明図であり、（ａ）は斜視図、（ｂ）は平面図、（ｃ）は左側面図、（ｅ）は正面図である。It is explanatory drawing which shows the state which has the knob of a thumb turn apparatus in an operation position, (a) is a perspective view, (b) is a top view, (c) is a left view, (e) is a front view. 本発明のサムターン装置を扉に取り付けた態様の概要を示す平面図である。It is a top view which shows the outline | summary of the aspect which attached the thumb turn apparatus of this invention to the door.

Explanation of symbols

５ｆ，５ｇ係合凸部
１１ツマミ
１１ａツマミ本体
１１ｂ可動部材
１２サムターン軸
１５フランジ
１６係合凹部
１７ガイド軸
１７ａ，１７ｂ，１７ｃ係止溝
１８コイルバネ
３１，３２ツマミピース
６１，７１第１、第２摺動部材
６５，７５第１、第２係止部材
６６，７６軸挿通孔
６８，７８第１押圧部材、第２押圧部材 5f, 5g Engaging convex part 11 Knob 11a Knob main body 11b Movable member 12 Thumb turn shaft 15 Flange 16 Engaging concave part 17 Guide shaft 17a, 17b, 17c Locking groove 18 Coil spring 31, 32 Knob piece 61, 71 First, second Sliding member 65,75 First and second locking member 66,76 Shaft insertion hole 68,78 First pressing member, second pressing member

Claims

A thumb-turn shaft that locks and unlocks the locking means by rotating operation;
A thumb turn device comprising a knob capable of being engaged with and disengaged from the thumb turn shaft and rotating the thumb turn shaft by engaging with the thumb turn shaft,
The thumb turn shaft has a guide shaft portion integrally provided in the base end direction from the base end,
First and second locking grooves formed in the circumferential direction at two positions in the axial direction are formed in the guide shaft portion,
The knob is
A knob body that can rotate in the circumferential direction with respect to the thumb-turn shaft and cannot move in the axial direction,
A movable block provided in the knob body so as to be movable in the axial direction, inserted through the guide shaft portion, and movable in the axial direction and the rotational direction with respect to the guide shaft portion;
A locking member provided on the movable block and movable in the radial direction of the guide shaft portion with respect to the movable block;
A shaft insertion hole formed in the locking member and capable of inserting the guide shaft portion;
Urging means for urging the locking member radially outward,
A guide shaft portion is inserted into the shaft insertion hole of the locking member,
When the locking member is in a position to be locked in the first locking groove, the movable block is detached from the thumb turn shaft, the knob body is in an idle state (idling mode) with respect to the thumb turn shaft, and the locking member is A mode-switchable crime prevention thumb-turn device in which the movable block engages with the thumb-turn shaft when in a position to be locked in the second locking groove, and the knob main body is in a state (operation mode) in which the thumb-turn shaft can be operated.

Two of the locking members are provided at positions opposite to each other in the radial direction of the thumb turn shaft and at an axial distance that is equal to the interval between the first locking groove and the second locking groove. The mode switching type crime prevention thumb turn device according to claim 1.

The mode according to claim 1 or 2, wherein a pressing member provided integrally with the locking member is provided at a radially outer end of the locking member and can be operated from the outside of the knob body. Switchable crime prevention thumb turn device.

The mode switching type crime prevention thumb turn device according to claim 1 or 2, wherein a pressing member is integrally provided on the locking member, and a moving position of the pressing member is visible from outside the knob body.

A block cover that integrally moves in the axial direction with the locking member and the movable block is provided in the movable block, and the block cover is housed in the knob body corresponding to engagement / disengagement of the movable block and the thumb turn shaft. 5. The mode-switching type crime prevention thumb turn device according to claim 1, wherein the mode-switching type security thumb-turn device can protrude from the main body of the knob and thereby confirm the operation / idle mode.

6. The mode switching type crime prevention thumb turn device according to claim 1, wherein the knob main body is rotatable with respect to the thumb turn shaft and is positioned in the circumferential direction with respect to the thumb turn shaft.