JP2004137721A

JP2004137721A - Thumb-turn device for lock

Info

Publication number: JP2004137721A
Application number: JP2002302122A
Authority: JP
Inventors: Kenji Ogawa; 小川健二
Original assignee: Miwa Lock KK; Miwa Lock Co Ltd
Current assignee: Miwa Lock KK; Miwa Lock Co Ltd
Priority date: 2002-10-16
Filing date: 2002-10-16
Publication date: 2004-05-13
Anticipated expiration: 2022-10-16
Also published as: JP4289596B2

Abstract

<P>PROBLEM TO BE SOLVED: To use a thumb-turn device having the same constitution in response to right and left arbitrary places of a door. <P>SOLUTION: The thumb-turn device for a lock is composed of a thumb-turn mounting cylinder having a stopper for a movable locking piece, a selective mounting hole for a stopper pin and a guide slot, a cylindrical operating body externally fitted to the mounting cylinder, the movable locking piece incorporated into a guide groove of the inner wall surface of an operating body in cooperation with the operating body and urged in the direction that the locking piece is engaged with the stopper, and a rotating body of interiorly finished rotatably to the mounting cylinder while having a movable pin capable of abutting against the first pushing surface or second pushing surface of the operating body as being penetrated to the slot. When the stopper pin is changed and inserted to the second selective mounting hole from the first selective mounting hole, the direction of the locking of the operating body is reversed. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、錠前用サムターン装置に関し、特に扉の左右勝手違いに対応して使用することができる錠前用サムターン装置に関する。
【０００２】
【従来の技術】
従来、錠前に於いて、錠前を構成する主たる部材（例えばラッチ）の傾斜方向を変更して左右勝手の変更を行うことができる考え方が示唆されている（特開平２００１−２８８９３８号公報）。この公報に記載のアイデアは、錠前を構成する錠箱のフロントなどを取り外すことなく、フロントから突出したラッチを錠箱内装の補助バネのバネ力に抗して軸方向外側に引き、フロントの開口部に形成して係合部との係合関係でラッチの向きを変え、左右勝手の変更をするものであるから、比較的簡単な作業により左右勝手を実現することができる。
【０００３】
ところで、錠前用サムターン装置に関しても、同一の装置を「ある部材（例えばサムターン）を操作したり」或いは「ある部材（例えばストッパー）の取付け位置を変えたり」して扉の勝手違いに対応して使用することができれば非常に便利である。
【０００４】
しかしながら、現在、錠前用サムターン装置に於いて、簡単な操作により、扉の「左勝手」又は「右勝手」のいずれにも使用することができ、また、施錠も極めて簡単にできる錠前用サムターン装置が出現していない。
【０００５】
【発明が解決しようとする課題】
本発明は、以上のような従来技術に鑑み、第１の目的は、固定部材としてのサムターン取付け筒に形成した選択取付け孔に対するストッパーピンの取付け位置を変えることにより、簡単に施錠方向を変えることができる錠前用サムターン装置を提供することである。これにより扉の開き勝手（左勝手又は右勝手）に対応して同一構造のサムターン装置をそのまま使用することができる。
【０００６】
第２の目的は、ダイヤル錠のように、筒状操作体を指で一方向へ回転操作するだけで極めて簡単に施錠することができることである。第３の目的は、サムターン装置を合鍵或いは可動ロック片の係合を解除するための係合解除具を操作しない限り、容易に解錠状態にすることができないことである。特に、ガラスを有する扉に錠前が取付けられている場合に於いて、侵入者によってガラスを割られた場合であっても、筒状操作体を解錠方向へ容易に回すことができないことである。これによって、外部からの不正な解錠を防止することができる。なお、付随的な目的としては、施錠時にクリック感を得ることができることである。
【０００７】
【課題を解決するための手段】
本発明の錠前用サムターン装置は、中空胴部に可動ロック片用ストッパー部、ストッパーピン用選択取付け孔、案内長孔をそれぞれ有するサムターン取付け筒と、このサムターン取付け筒に回転自在に外嵌合する筒状操作体と、この筒状操作体と協働するように該筒状操作体の内壁面の案内溝に組み込まれ、かつ、付勢バネにより前記ストッパー部と係合する方向へ常時付勢された１又は２の可動ロック片と、前記サムターン取付け筒に回転自在に内装されていると共に、前記案内長孔を貫通して筒状操作体の第１押圧面又は第２押圧面と当接可能な可動ピンを有する回転体とから成り、扉が左勝手の場合に於いて、前記筒状操作体を指で操作して一方向へ回転すると、前記回転体は可動ピンを介して筒状操作体の第１押圧面に押し回されて施錠位置へと回転すると共に、可動ロック片が前記ストッパー部の一側面に係合可能な状態になり、一方、扉が右勝手の場合には、前記ストッパーピンを第１選択取付け孔から第２選択取付け孔へと差し替えると、筒状操作体の施錠方向が逆となり、前記筒状操作体を指で操作して他方向へ回転すると、回転体は可動ピンを介して筒状操作体の第２押圧面に押し回されて施錠位置へと回転すると共に、可動ロック片がストッパー部の他側面に係合可能な状態になることを特徴とする。
【０００８】
上記構成に於いて、筒状操作体を施錠方向へ回転した際、所定の位置にて該筒状操作体の第１当り面又は第２当り面が選択取付け孔に取り外し可能に取付けたストッパーピンに当ることを特徴とする。
【０００９】
【発明の実施の形態】
図１乃至図２５は、本発明の第１実施例を示す各説明図である。まず、図１乃至図１５は扉の左勝手の場合にサムターン装置Ｘを扉１の自由端部に取付けたことを前提としている。まず図１を参照に扉の開き勝手について簡単に説明する。一般に戸枠ａの縦枠に取付けられた蝶番ｂの軸が扉１の開く側から見て左側に見える場合が「左勝手」と言われている。
【００１０】
次に図２を参照に本発明の環境部材を説明する。なお、図２は本発明の技術的思想を説明するための概略説明図であるから、扉の厚さ寸法、扉に対する錠前を構成する各部材の取付け位置等は設計図面通りではない。また、本発明の特定要件に関係のない部分や部材は簡略ないし省略してある。
【００１１】
さて、Ｘは住宅、施設、事務所、管理室等の出入り口（非常口も含む）の扉１に取付けられた錠前である。本発明の錠前用サムターン装置２は屋内側３の扉面１ａに突出状態に取付けられる。したがって、４は屋外、５は屋外側の扉面１ｂに突出状態に取付けられ、かつ、内部に複数個のピンタンブラーを有するシリンダー錠６を内蔵したシリンダー取付け筒である。
【００１２】
７は扉１の自由端部に埋め込まれた錠箱、８は錠箱７に受け座を介して所定量回転自在に設けられた駆動カム（当業者用語では「ダルマ」）、９は駆動カム８の駆動力により出没する施錠片（当業者用語では「デッドボルト」）である。デッドボルト９は、図示しない戸枠側のストライクに係脱する。
【００１３】
本発明の錠前用サムターン装置２は、後述するサンターン取付け筒にシリンダー錠を内蔵しているが、普通一般に室内（サムターン）側のシリンダー錠の駆動軸と屋外側のシリンダー錠６のそれとは同軸に位置し、いずれか一方を回転させると、デッドボルト９は錠箱７のフロントを基準にして出没する。
【００１４】
すなわち、内外のシリンダー錠の駆動軸は、互いに連動するように機械的に連結されており、いずれか一方の鍵Ｋ，Ｋ１を操作すると、駆動カム８が回転し、その係合駆動腕によりデッドボルト９が出没（施・解錠）する。
【００１５】
次に本発明の錠前用サムターン装置２を構成する主要部材について説明する。１１は一端部側が扉１の内壁面１ａから突出し、一方、他端部が錠箱７の幅広側壁に形成した嵌合孔に嵌合するように扉１に固定されたサムターン取付け筒である。この固定部材としてのサムターン取付け筒１１は、図３（説明の便宜上、先端部側かつ底面側から見た斜視図）及び図４（説明の便宜上、後端部側かつ平面側から見た斜視図：図３のサムターン取付け筒１１を手前側に引っ繰り返した斜視図）で示すように、長筒状の中空胴部１２と、この中空胴部１２の先端部側の開口を一部塞ぐ環状部１３とから成る。
【００１６】
しかして、１４，１４は中空胴部１２の後端部外周壁の一部に対称的に突設された嵌合突起で、これらの嵌合突起１４，１４は、前述した錠箱７の嵌合孔に嵌合する。１５は前記嵌合突起１４の一つ、又は中空胴部１２の後端部外周壁の一部に小突起状に設けられたストッパー部で、このストッパー部１５は、扉１の開き勝手が「左勝手」又は「右勝手」の場合に於いて、後述する可動ロック片３１，３１Ａのいずれかを介してサムターンシリンダー３５並びに回転体３６の解錠方向への回転を阻止する。
【００１７】
１６はストッパー部１５を基準にして中空胴部１２の後端部外周壁の一部に形成された案内長孔で、この案内長孔１６は、本実施例では扉１に対する取付け状態に於いて、中空胴部１２の底面側に形成されている。
図３はサムターン取付け筒１１の説明の便宜上、先端部側かつ底面側から見た斜視図であるが、この図３から明らかなように、案内長孔１６は嵌合突起１４の内壁面の略中央部に突起状に形成されたストッパー部１５の前方直下に位置するように中空胴部１２の周方向に弧状に形成されている。
【００１８】
１７ａ，１７ｂは案内長孔と同様に中空胴部１２の後端部外周壁の一部に形成されたストッパーピン用選択取付け孔である。これらの選択取付け孔１７ａ，１７ｂは、本実施例では中空胴部１２の前記案内長孔１６が形成されたその周方向線上に所定間隔を有して合計２個形成されている。ここでは図４を基準にすると、上方の嵌合突起１４付近に形成された一つの選択取付け孔１７ａ（図４では右側、図１２では左側）を、説明の便宜上第１選択取付け孔、一方、第１選択取付け孔と対をなす他方の選択取付け孔１７ｂ（図４では左側、図１２では右側）を第２選択取付け孔と称する。
【００１９】
１８は扉１の開き勝手に対応して前記第１・第２選択取付け孔１７ａ，１７ｂに選択的に差し込まれるストッパーピンである。このストッパーピン（例えばオネジ）１８を第１・第２選択取付け孔（例えばメネジ）１７ａ，１７ｂのいずれかにそれぞれ差し替えると、後述する筒状操作体の施錠方向が逆となる。本実施例では、図１で示すように扉が左勝手の場合には、第１選択取付け孔１７ａにストッパーピン１８を螺着する。したがって、ストッパーピン１８を第１選択取付け孔１７ａから第２選択取付け孔１７ｂへと差し替えると、筒状操作体の施錠方向が逆となる。この点については、扉の右勝手の場合として図１６乃至図２５を参照に後述する。
【００２０】
１９はサムターン取付け筒１１の中空胴部１２の後端部内周壁にリング状に形成された弾性止め具用係止溝である。
【００２１】
次に２１はサムターン取付け筒１１に外嵌合する筒状操作体で、この筒状操作体２１は、図５及び図６で示すようにサムターン取付け筒１１の中空胴部１２に回転可能に装着される筒状制御部２２と、この筒状制御部２２の外端部外周壁の一部に対称的に突設された複数個の山形状指掛け操作部２３とから成る。
【００２２】
しかして、２４は前記筒状制御部２２の内端部の外周壁に周方向に沿って一部形成された第１制御係合部（例えば長孔、切欠部など）で、この第１制御係合部２４は、図５図（サムターン取付け筒１１の底部の方を上方に示した説明図）を基準にすると、上方に見え、後述する可動ピン３９用の第１押圧面２４ａと、この第１押圧面２４ａと対向する他方の切欠端面（第２押圧面）２４ｂと、第１押圧面２４ａと切欠端面２４ｂの間の弧状切欠端面２４ｃとをそれぞれ有している。
【００２３】
一方、２５は同じく前記筒状制御部２２の内端部の外周壁に周方向に沿って一部形成された第２制御係合部（例えば長孔、切欠部など）で、この第２制御係合部２５は、図６（サムターン取付け筒１１の上部の方を上方に示した説明図）を基準にすると、上方に見え（図５では下方に位置する仮想線の部分）、前述したストッパーピン１８と係合可能な第１当り面２５ａと、ストッパーピン１８を前述した第２選択取付け孔１７ｂに差し替えた場合に該ストッパーピン１８に当接する第２当り面２５ｂとを有する。
【００２４】
さらに筒状操作体２１は、内端部の内周壁に可動ロック片３１の形状に適合する複数個の案内溝２６，２６を有する。これらの案内溝２６，２６は、図６で示すように、例えば周方向に一部形成された第１遊嵌合溝２６ａと、この第１遊嵌合溝２６ａと直交する第２嵌合溝２６ｂとから成り、本実施例では左右一対の可動ロック片３１をサムターン取付け筒１１のストッパー部１５に対して係脱する方向にそれぞれ案内する。なお、前記各第２嵌合溝２６ｂは、可動ロック片３１の係合爪部が突出するようにそれぞれ内端面まで至っている。
【００２５】
３１，３１Ａは左右に対称的に設けられた可動ロック片である。各可動ロック片３１，３１Ａは、前述したように左右の案内溝２６，２６にそれぞれスライド自在に遊嵌合する。本実施例では、各可動ロック片３１は、筒状操作体２１と協働するように該筒状操作体の内壁面の案内溝２６，２６にそれぞれに組み込まれ、かつ、付勢バネ３４によりサムターン取付け筒１１のストッパー部１５と係合する方向へそれぞれ常時付勢されている。
【００２６】
換言すれば、図７で示すように所定間隔を有して左右に対向する第１可動ロック片３１と第２可動ロック片３１Ａは、サムターン取付け筒１１の中空胴部１２の外壁面にそれぞれ添設状態に設けられ、かつ、筒状操作体２１の筒状制御部２２の案内溝２６，２６に係脱方向（回転体の駆動軸４０の軸方向）にスライド自在に組み込まれている。
【００２７】
このようにサムターン取付け筒１１と筒状操作体２１との間に対称的に配設された一対の可動ロック片３１，３１Ａは、同一形状なので、説明の便宜上、一方の可動ロック片３１の構成のみを説明し、他方の可動ロック片３１Ａのそれについては同一の符号を付し、重複する説明を省略する。
【００２８】
しかして、可動ロック片３１は、図７で示すように案内溝２６の第１遊嵌合溝２６ａに遊嵌合するやや弧状の第１嵌合指部３２と、この嵌合指部３２に直交状態に連設しかつ案内溝２６の第２嵌合溝２６ｂに嵌合する人差し指状の第２嵌合指部３３とから成り、前記第２嵌合指部３３の外端部には、サムターン取付け筒１１のストッパー部１５と係脱する刃先状の係合爪部３３ａが形成されている。
【００２９】
３４，３４は可動ロック片３１，３１Ａをそれぞれ一方向（係脱方向）に常時付勢する付勢バネ（例えばコイルバネ）で、これらの付勢バネ３４，３４は、筒状操作体２１の案内溝２６，２６に適宜収納されている。
【００３０】
次にサムターン取付け筒１１に内装されたサムターンシリンダー錠３５並びに回転体３６について説明する。錠前用サムターン装置２の筒状操作体２１はもっぱら錠前Ｘを施錠するために、一方、合鍵Ｋ１はもっぱら錠前Ｘを解錠するために用いられている。
【００３１】
したがって、本実施例では解錠用合鍵Ｋ１との関係で、サムターン取付け筒１１にはサムターンシリンダー錠３５が組み込まれている。これにより、錠前用サムターン装置２は、用途如何を問わず、両面シリンダーの錠前として用いることができる。
【００３２】
さて、サムターンシリンダー錠３５は、解錠用合鍵Ｋ１のステム部を挿入するための挿入溝、ピンタンブラー等を有し、外側のシリンダー錠６と特段異なる点は存在しない。したがって、その詳細な説明は割愛する。
【００３３】
図２で示すように円柱状回転体３６は、サムターン取付け筒１１の後端部側に内装されている。この回転体３６は、図５で示すように、内端部の端面中央部に軸方向に向かってマイナス状の係合溝３７を有する。この係合溝３７には図示しないシリンダー錠６の回転軸或いはクラッチ機構を構成する部材が係合する。また回転体３６は、外周壁の一部に取付け孔としてのメネジ３８を有している。
【００３４】
しかして、前記メネジ３８にはサムターン取付け筒１１の案内長孔１６から突出し、かつ、筒状操作体２１の第１制御係合部２４内に至る可動ロック片係合解除用可動ピン３９が取り外し可能に螺合している。そして、図６で示すように回転体３６の外端面の中央部には駆動軸４０が設けられている。回転体３６は、サムターン取付け筒１１から外れないように前述した係止溝１９に係合する弾性止め具４１（例えばＣ型リング）にその外端面が支持される。
【００３５】
次に図８乃至図１５を参照にして扉の左勝手の場合における本発明の作用について説明する。図８は錠前Ｘの解錠時における筒状操作体２１の指掛け操作部２３の位置を示す。また図９は、錠前Ｘが解錠状態（本実施例では一方の可動ロック片３１がストッパー部１５の一側面１５ａから係合解除された状態）から施錠状態（可動ロック片３１がストッパー部１５の一側面１５ａに係止された状態）になる場合を示す。
【００３６】
ところで、本実施例では、解錠状態の時、（イ）筒状操作体２１の山形状指掛け操作部２３は、図１１の左図で示すように略上下に位置し、（ロ）またサムターン取付け筒１１の第１選択取付け孔１７ａに差し込まれたストッパーピン１８は、図１２の左図で示すように筒状操作体２１の第１当り面２５ａから離れ、（ハ）可動ロック片係合解除用可動ピン３９は、図１３の左図で示すようにサムターン取付け筒１１のストッパー部１５の一側面１５ａから離れて案内長孔１６の一方側の切欠端面１６ａ或いは筒状操作体２１の第１押圧端面２４ａに当接し、（ニ）筒状操作体２１の一方の第１押圧端面２４ａは、図１４の左図で示すように前記案内長孔１６の一方側の切欠端面１６ａと半径方向にて略一致し、（ホ）可動ロック片３１は、可動ピン３９の位置に関連付けられているため、図９で示すようにその第１嵌合指部３２の周方向縁辺が押されることにより、付勢バネ３４のバネ力に抗して筒状操作体２１内へと後退している。（ヘ）この時、合鍵Ｋ１はサムターンシリンダー錠３５に差し込まれているが、錠前Ｘが解錠状態であるため、自由に抜き取ることができる。
【００３７】
そこで、上記解錠状態から施錠状態にする場合には、（ａ）筒状操作体２１の指掛け操作部２３に指を掛け、そのまま図８の矢印方向へ略９０度回す。なお、筒状操作体２１の回転角度に関しては多少余裕がある。この時合鍵Ｋ１を使用せず、筒状操作体２１を指で回して施錠状態にする。これにより施錠時、筒状操作体２１の山形状指掛け操作部２３は、図１１の右図で示すように左右に位置し、（ｂ）サムターン取付け筒１１のストッパーピン１８には、図１２の右図で示すように筒状操作体２１の第１当り面２５ａが当接し、（ｃ）可動ロック片係合解除用可動ピン３９は、筒状操作体２１の回転角度に余裕があるため、図１３の右図で示すようにサムターン取付け筒１１のストッパー部１５の一側面１５ａを超えて右側へと移動して案内長孔１６の他側の切欠端面１６ｂに当接ないし当接可能な状態となり、（ｄ）筒状操作体２１の一方の第１押圧端面２４ａは、図１４の右図で示すように前記案内長孔１６の一方側の切欠端面１６ａから離れる反面、他方側の他方側の切欠端面１６ｂに接近して可動ピン３９を挟むように対向し、（ｅ）可動ロック片３１は、図９の仮想線で示すように、可動ピン３９がその第１嵌合指部３２の周方向縁辺から離れることにより、付勢バネ３４のバネ力により筒状操作体２１から突出し、その係合爪部３３ａがサムターン取付け筒１１のストッパー部１５の一側面１５ａに係止される。
【００３８】
なお、本実施例では、可動ロック片３１は可動ピン３９の位置に関連付けられているため、施錠時に筒状操作体２１を多少逆方向に戻す必要がある。この点も考慮し、本実施例では可動ピン３９の第１嵌合指部３３の端部は傾斜状に形成され、この傾斜状のカム面３２ａに可動ピン３９が摺接可能である。
【００３９】
したがって、扉１の左勝手の場合に於いて、図１５で示すようにサムターン装置２の筒状操作体２１を反時計方向に回転すると、デッドボルト９は駆動カム８を介して右側に突出する。
【００４０】
一方、図１０は、施錠状態から解錠状態にする場合を示す。つまり、可動ロック片３１がストッパー部１５の一側面１５ａに係止された状態からその係合が解除される場合である。施錠状態の時、筒状操作体２１を反対の方向に回そうとしても、可動ロック片３１の係合爪部３３ａがサムターン取付け筒１１のストッパー部１５の一側面１５ａに係合していることから、回すことができない。本実施例では、回転体３６を回すための合鍵Ｋ１が必要である。
【００４１】
そこで、サムターンシリンダー錠３５に合鍵Ｋ１を差し込み、合鍵Ｋ１を当然解錠方向へと回す訳であるが、ここで合鍵Ｋ１の操作により回転体３６が回り始めると、回転体３６と一体の可動ピン３９が可動ロック片３１の傾斜状のカム面３２ａを押し付けながら次第に第１嵌合指部３２の周方向縁辺に至る。
【００４２】
その結果、可動ロック片３１は案内溝２６に案内されながら、かつ、付勢バネ３４のバネ力に抗して後退する。可動ロック片３１が筒状操作体２１の内部へと後退すると、その係合爪部３３ａはストッパー部１５から離れる（係合解除）。そこで、そのまま合鍵Ｋ１を回すと、可動ピン３９が筒状操作体２１の第１押圧面２４ａを押し戻すことになるので、筒状操作体２１は前述した解錠位置へと回転する。
【００４３】
このように、本実施例では、施錠の際には指で筒状操作体２１を施錠方向へ回転操作すると、可動ロック片３１は所定の位置にて案内溝２６に案内されながら付勢バネ３４のバネ力により突出してストッパー部１５の一側面１５ａに係合する。そのため該筒状操作体２１は解錠方向への回転が阻止される。一方、解錠の際には、前記解錠用合鍵Ｋ１の操作による可動ピンの周方向への移動に伴い可動ロック片３１は付勢バネ３４のバネ力に抗して係合解除の方向へ後退する。
【００４４】
次に図１６乃至図２５は、扉の右勝手の場合に於いて、上述したサムターン装置Ｘを扉１の自由端部に取付ける或いは取付けた時である。扉の左勝手については前述したが、図１６で示すように、戸枠ａの縦枠に取付けられた蝶番ｂの軸が扉１の開く側から見て右側に見える場合が「右勝手」と言われている。本発明の実施例は、サムターン取付け筒１１に形成した選択取付け孔１７ａ，１７ｂに対するストッパーピン１８の取付け位置を変えることにより、簡単に施錠方向を変えることができる。
【００４５】
換言すれば、図１７及び図１８で示すように他の部材を交換することなく、ストッパーピン１８のみを第１選択取付け孔１７ａから第２選択取付け孔１７ｂへと差し替えると、筒状操作体２１を逆方向へ所定量回すことが可能となる。この場合筒状操作体２１の回転方向が変換するので、本実施例では他方の可動ロック３１Ａを使用することにし、図１９及図２０で示すように、他方の可動ロック３１Ａがトスッパー部１５の他側面１５ｂに係脱する。
【００４６】
しかして、図２１で示すように筒状操作体２１を指で操作して他方向（矢印で示す時計方向）へ回転すると、図２２で示すように第１選択取付け孔１７ａ付近に位置する筒状操作体２１の第２当り面２５ｂは、ストッパーピン１８の方へ接近して行く。
【００４７】
一方、図２３で示すように、回転体の可動ピン３９は筒状操作体２１の第２押圧面２４ｂに押し回されて施錠位置へと回転する（３９は右側から左側へと移動）。これにより所定の位置にて筒状操作体２１の第２当り面２５ｂがストッパーピン１８に当り、また可動ロック片３１Ａはストッパー部１５の他側面１５ｂに係合可能な状態になる。具体的な作動態様は、前述した左勝手の場合と同じなので重複説明は割愛するが、理解を深める意味合いで、図１９乃至図２５を示す。
【００４８】
図１９は図９と同様の説明図であり、錠前Ｘが解錠状態（本実施例では他方の可動ロック片３１Ａがストッパー部１５の他側面１５ｂから係合解除された状態）から施錠状態（可動ロック片３１Ａがストッパー部１５の他側面１５ｂに係止された状態）になる場合を示す。解錠状態の時における各部材の態様は、前述した（イ）〜（ヘ）と同様である。
【００４９】
一方、図２０は解錠状態から施錠状態になる場合の説明図である。この時の作動態様も前述した（ａ）〜（ｅ）と同様である。図２３は図１３と同様の説明である。底面図から見ると、可動ピン３９は案内長孔１６の他方の切欠端面１６ｂに位置し、図１３と比較すると反対側に位置していることが判る。したがって、筒状操作体２１を同図の左図矢印方向に回転すると、可動ピン３９は筒状操作体２１の第２押圧端面２４ｂに押されて案内長孔１６内を移動し、その結果、同図の右図に示す左側に移動する。
【００５０】
そこで、図２３の右図に於いて、筒状操作体２１の回転を前記左図矢印方向とは反対方向に多少戻すと、第２可動ロック片３１Ａが可動ピン３９から多少離れるので、第２可動ロック片３１Ａは付勢バネ３４のバネ力により突出し、ストッパー部１５の他側面１５ｂに係合する（なお、前述したように本実施例では、可動ロック片３１Ａも可動ピン３９の位置に関連付けられているため、施錠時に筒状操作体２１を多少逆方向に戻す必要がある）。
【００５１】
図２４は背面側から見た可動ピン３９と第２押圧端面２４ｂ並びにストッパーピン１８と筒状操作体２１の第２当り面２５ｂとの関係をそれぞれ示す。この場合筒状操作体２１を矢印で示す反時計方向に回転すると、可動ピン３９は筒状操作体２１の第２当り面２５ｂに押されて右図で示すように右側に移動する。また筒状操作体２１の第２当り面２５ｂはストッパーピン１８に当接する。
【００５２】
したがって、右勝手の場合に於いて、図２５で示すように同一のサムターン装置２の筒状操作体２１を時計方向に回転すると、デッドボルト９は駆動カム８を介して左側に突出する。
【００５３】
【実施例】
第１実施例に於いて、固定部材側のストッパー部１５は後端部外周壁の一部に周方向に突壁状に設けても良い。また、筒状操作体２１の筒状制御部２２に形成された制御係合部２４は、周方向に形成された案内長孔であっても良い。さらに、筒状操作体は、平面Ｌ型のレバーではなく、実施例で示したノブ型でも良いことから、施錠時における筒状操作体の回転方向は、必ずしも左右勝手に対応させる必要はない（左勝手の場合は必ず左回転にする必要はない）。
【００５４】
加えて、第１実施例ではサムターン取付け筒にサムターンシリンダー３５を内装し、解錠の場合には合鍵Ｋ１で解錠する旨を説明したが、可動ロック片を押し下げる解錠手段としては、適当な係合解除具（ドライバー、ピンセット、螺合ネジなど）でも可能なので、サムターンシリンダー３５や合鍵Ｋ１は本発明の特定（限定）要件ではない。合鍵Ｋ１は実施態様項の解錠手段の一例に過ぎない。
【００５５】
次にこの欄では、本発明の技術的思想に含まれる設計変形例（構成要件を加味したものも含む）を説明する。なお、以下の実施例の説明にあたって、第１実施例と同一又は同様（機能が同一）の部分には、同一又は同様の符号を付し、重複する説明を省略する。
【００５６】
図２６乃至図２９は、本発明の技術的思想に含まれる設計変形例（第２実施例）を示す。図２６及び図２７は第２実施例の概念図である。したがって、特にストッパーピン用選択取付け孔１７ａ、１７ｂやストッパーピン１８の位置に関しては、説明の便宜上、底面視から概念的に図示しているに過ぎない（図２９で示すように、選択取付け孔１７ａ、１７ｂ等は左右に見える）。
【００５７】
この第２実施例において、第１実施例と主に異なる点は、（１）可動ロック片３１Ｂを１個にしたこと、（２）可動ロック片３１Ｂの形状を小鳥のように平面十字型にしたこと、（３）したがって、可動ロック片３１Ｂの第１嵌合指部３２は、第２嵌合指部３３に交差するように左右に対称的に連設していること、（４）第２嵌合指部３３の先端部の係合爪部３３ａは必ずしも刃先状ではなく、例えば指先先状に形成したこと、（５）第２制御係合部２５Ａをサムターン取付け筒１１Ａの案内長孔１６が位置しているその周方向線上に形成せず、例えば筒状操作体２１Ａの中空胴部の指掛け操作部２３付近に形成したこと、（６）したがって、ストッパーピン用選択取付け孔１７ａ、１７ｂは、筒状操作体２１Ａの先端部に所要間隔を有して形成され、図２６で示すように第１選択取付け孔１７ａにストッパーピン１８を差し込んで場合には扉の左勝手に対応し、一方、図２７で示すように第２選択取付け孔１７ｂにストッパーピン１８を差し込んで場合には扉の右勝手に対応すること等である。
【００５８】
上記構成に於いて、図２９（図１４と同様な図）を参照にすると、例えば扉の左勝手の場合に於いて、筒状操作体２１Ａを矢印方向に回転すると、回転体３６と一体の可動ピン３９は、筒状操作体２１Ａの第１押圧面２４ａに押されて時計方向へ移動し、同図の右図のようになる。この時第１選択取付け孔１７ａのストッパーピン１８に筒状操作体２１Ａの第１当り面２５ａが当接係合する。また可動ロック片３１Ｂの係合爪部３３ａはストッパー部１５の一側面１５ａに係合する。
【００５９】
したがって、ストッパーピン１８を第２選択取付け孔１７ｂに差し込んだ場合には、図２７で示すように、筒状操作体２１Ａの施錠方向は、矢印Ｂで示すように図２６の矢印方向Ａとは逆になり、施錠時、可動ロック片３１Ｂの係合爪部３３ａはストッパー部１５の他側面１５ｂに係合する。
【００６０】
それ故に、この筒状操作体と協働するように該筒状操作体の内壁面の案内溝に組み込まれ、かつ、付勢バネにより固定部材側のストッパー部と係合する方向へ常時付勢された可動ロック片は、１個（第２実施例）又は２個（第１実施例）のいずれの場合であっても、固定部材側の第１選択取付け孔１７ａ又は第２選択取付け孔１７ｂのいずれか一方にストッパーピン１８を差し込むことにより、筒状操作体２１（２１Ａ）の施錠回転方向が変わり、これにより扉の勝手違い（左勝手、右勝手）に対応して本発明のサムターン装置を扉の自由端部に取付けることができる。
【００６１】
次に図３０及び図３１に示す第３実施例のサムターン装置２Ａに於いて、第１実施例と主に異なる点は、サムターン取付け筒１１Ｂの中空胴部１２の外周壁に凹所５１を形成し、一方、施錠時に該凹所５１と対向する山形或いは曲面状の凹所５２を筒状操作体２１Ｂの筒状制御部２２Ｂの内壁面に形成し、前記凹所には、クリック機構構成部材を組み込んだことである。しかして、クリック機構構成部材としては、サムターン取付け筒１１Ｂの凹所５１に組み込んだクリックバネ５３と、このクリックバネ５３により付勢され、かつ、ストッパー部１５に可動ロック片３１の係合爪部３３ａが係合可能な状態になった時（錠前の施錠時）に筒状操作体２１Ｂの曲面状の凹所５２に係合するロケット頭部型クリック係合体５４とから成る。このように構成すると、施錠時にクリック感を得ることができる。
【００６２】
【発明の効果】
以上の説明から明らかなように、本発明にあっては、次に列挙するような効果がある。
（１）固定部材側の第１選択取付け孔又は第２選択取付け孔のいずれか一方にストッパーピンを差し込むことにより、筒状操作体の施錠回転方向が変わり、これにより扉の勝手違い（左勝手、右勝手）に対応して本発明のサムターン装置を扉の自由端部に取付けることができる。
（２）ダイヤル錠のように、筒状操作体を指で一方向へ回転操作するだけで簡単に施錠することができることである。
（３）サムターン装置を合鍵或いは可動ロック片の係合を解除するための係合解除具を操作しない限り、容易に解錠状態にすることができないことである。特に、ガラスを有する扉に錠前が取付けられている場合に於いて、侵入者によってガラスを割られた場合であっても、筒状操作体を解錠方向へ容易に回すことができないことである。これによって、外部からの不正な解錠を防止することができる。
【図面の簡単な説明】
図１乃至図２５は本発明の第１実施例を示す各説明図、図２６乃至図２９は本発明の第２実施例を示す各説明図、図３０及び図３１は本発明の第３実施例を示す各説明図である。
【図１】扉の左勝手の場合に於いて、扉に本発明を取付けた状態の説明図。
【図２】実施環境を含む使用状態の一例を示す概略説明図。
【図３】サムターン取付け筒の先端部側かつ底面側から見た斜視図。
【図４】サムターン取付け筒の後端部側かつ平面側から見た斜視図。
【図５】主たる部材の分解斜視図（底部側から見た状態）。
【図６】図５と対比した主たる部材の概略説明図（上部側から見た状態）。
【図７】主たる部材（可動ピン、可動ロック片、付勢バネなど）の概略説明図。
【図８】筒状操作体の操作態様の一例（左勝手）を示す正面図。
【図９】解錠状態から施錠状態になる場合の概略説明図。
【図１０】施錠状態から解錠状態になる場合の概略説明図。
【図１１】左勝手の場合に於いて、筒状操作体の施錠回転方向を示す正面図。
【図１２】図１１に於いて、平面から見た説明図。
【図１３】図１１に於いて、底面から見た説明図。
【図１４】図１１に於いて、背面から見た説明図。
【図１５】左勝手の場合に於いて、駆動カムやデットボルトの移動方向を示す説明図。
【図１６】扉の右勝手の場合に於いて、扉に本発明を取付けた状態の説明図。
【図１７】サムターン取付け筒に対するストッパーピンの差込位置を示す説明図。
【図１８】左右勝手の場合における背面からの違いを示す説明図。
【図１９】扉の右勝手の場合に於いて、図９と同様の説明図。
【図２０】扉の右勝手の場合に於いて、図１０と同様の説明図。
【図２１】扉の右勝手の場合に於いて、筒状操作体の施錠回転方向を示す正面図。
【図２２】図２１に於いて、平面から見た説明図。
【図２３】図２１に於いて、底面から見た説明図。
【図２４】図２１に於いて、背面から見た説明図。
【図２５】右勝手の場合に於いて、駆動カムやデットボルトの移動方向を示す説明図。
【図２６】左勝手の場合の施錠時における概念的な説明図。
【図２７】右勝手の場合の施錠時における概念的な説明図。
【図２８】要部（可動ロック片）の他例を示す説明図。
【図２９】左勝手の場合の背面からの説明図。
【図３０】第３実施例の図２と同様な概略説明図。
【図３１】要部の概略説明図。
【符号の説明】
Ｘ…錠前、１…扉、２…サムターン装置、３…屋内、４…屋外、５…シリンダー取付け筒、６…シリンダー錠、７…錠箱、８…駆動カム、９…施錠片、１１，１１Ａ，１１Ｂ…サムターン取付け筒、１２…中空胴部、１３…環状部、１４…嵌合突起、１５…ストッパー部、１５ａ…ストッパー部の一側面、１５ｂ…ストッパー部の他側面、１６…案内長孔、１６ａ…一方の切欠端面、１６ｂ…他方の切欠端面、１７ａ…第１選択取付け孔、１７ｂ…第２選択取付け孔、１８…ストッパーピン、１９…弾性止め具用係止溝、２１，２１Ａ，２１Ｂ…筒状操作体、２２，２２Ｂ…筒状制御部、２３…指掛け操作部、２４…第１制御係合部、２４ａ…第１押圧面、２４ｂ…第２押圧面、２５…第２制御制御係合部、２５ａ…第１当り面、２５ｂ…第２当り面、２６…案内溝、２６ａ…第１遊嵌合溝、２６ｂ…第２嵌合溝、３１，３１Ａ，３１Ｂ…可動ロック片、３２…第１嵌合指部、３２ａ…カム面、３３…第２嵌合指部、３３ａ…係合爪部、３４…付勢バネ、３５…サムターンシリンダー錠、３６…回転体、３８…メネジ、３９…可動ピン、４０…駆動軸、４１…止め具。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a thumb-turn device for a lock, and more particularly to a thumb-turn device for a lock that can be used in response to a difference in right and left of a door.
[0002]
[Prior art]
Conventionally, in locks, there has been suggested an idea that the inclination of a main member (for example, a latch) constituting the lock can be changed to change the right and left hand (Japanese Patent Laid-Open No. 2001-288938). The idea described in this publication is that the latch protruding from the front is pulled axially outward against the spring force of the auxiliary spring inside the lock box without removing the front of the lock box that constitutes the lock, thereby opening the front of the lock box. The left and right hand is changed by changing the direction of the latch in the engagement relationship with the engaging part and formed on the part, so that the left and right hand can be realized by relatively simple work.
[0003]
By the way, with regard to the lock thumb-turn device, the same device can be used to “operate a certain member (for example, a thumb turn)” or “change the mounting position of a certain member (for example, a stopper)” to deal with the difference in the doors. It would be very convenient if it could be used.
[0004]
However, at present, a thumb-turn device for a lock can be used for either "left hand" or "right hand" of a door by a simple operation, and can be locked very easily. Has not appeared.
[0005]
[Problems to be solved by the invention]
A first object of the present invention is to change the locking direction easily by changing a mounting position of a stopper pin with respect to a selective mounting hole formed in a thumb-turn mounting cylinder as a fixing member in view of the above conventional technology. To provide a thumb-turn device for a lock. Thus, the thumb turn device having the same structure can be used as it is in response to the opening of the door (left hand or right hand).
[0006]
A second object is to lock the cylindrical operation body very easily just by rotating the cylindrical operation body in one direction with a finger, like a dial lock. A third object is that the thumb-turn device cannot be easily unlocked unless a disengagement device for disengaging a key or a movable lock piece is operated. In particular, when a lock is attached to a door having glass, even if the glass is broken by an intruder, the tubular operation body cannot be easily turned in the unlocking direction. . As a result, unauthorized unlocking from outside can be prevented. An additional purpose is to be able to obtain a click feeling when locking.
[0007]
[Means for Solving the Problems]
A thumb-turn device for a lock according to the present invention includes a thumb-turn mounting cylinder having a stopper portion for a movable lock piece, a selection mounting hole for a stopper pin, and a guide slot in a hollow body, and rotatably externally fitted to the thumb-turn mounting cylinder. A cylindrical operating body, which is incorporated in a guide groove on an inner wall surface of the cylindrical operating body so as to cooperate with the cylindrical operating body, and is constantly biased by a biasing spring in a direction in which the stopper is engaged. One or two movable lock pieces, which are rotatably mounted in the thumb-turn mounting cylinder, penetrate the guide elongated holes, and come into contact with the first pressing surface or the second pressing surface of the cylindrical operating body. When the door is left-handed and the tubular operating body is rotated in one direction by operating a finger, the rotating body becomes cylindrical through the movable pin. Pushed around the first pressing surface of the operating body While rotating to the lock position, the movable lock piece can be engaged with one side surface of the stopper portion. On the other hand, when the door is right-handed, the stopper pin is moved from the first selection mounting hole to the second selection mounting hole. When the cylindrical operating body is replaced with the selective mounting hole, the locking direction of the cylindrical operating body is reversed, and when the cylindrical operating body is operated by a finger and rotated in the other direction, the rotating body is moved through the movable pin to the second position of the cylindrical operating body. (2) While being pushed by the pressing surface and rotating to the locking position, the movable lock piece can be engaged with the other side surface of the stopper portion.
[0008]
In the above configuration, when the cylindrical operation body is rotated in the locking direction, the first contact surface or the second contact surface of the cylindrical operation body is detachably attached to the selective attachment hole at a predetermined position. It is characterized by hitting.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 to 25 are explanatory views showing a first embodiment of the present invention. First, FIGS. 1 to 15 assume that the thumb turn device X is attached to the free end of the door 1 in the case of the left hand of the door. First, with reference to FIG. 1, the opening of the door will be briefly described. Generally, the case where the axis of the hinge b attached to the vertical frame of the door frame a is visible on the left side when viewed from the side where the door 1 opens is referred to as "left hand".
[0010]
Next, the environmental member of the present invention will be described with reference to FIG. Since FIG. 2 is a schematic explanatory view for explaining the technical idea of the present invention, the thickness dimension of the door, the mounting position of each member constituting the lock with respect to the door, and the like are not the same as the design drawings. Further, parts and members not related to the specific requirements of the present invention are simplified or omitted.
[0011]
X is a lock attached to a door 1 of an entrance (including an emergency exit) of a house, facility, office, management room, or the like. The lock thumb-turn device 2 of the present invention is attached to the door surface 1a on the indoor side 3 in a protruding state. Therefore, reference numeral 4 denotes an outdoor, and reference numeral 5 denotes a cylinder mounting cylinder which is mounted on the door surface 1b on the outdoor side in a protruding state and has a built-in cylinder lock 6 having a plurality of pin tumblers therein.
[0012]
Reference numeral 7 denotes a lock box embedded in the free end of the door 1, 8 denotes a drive cam ("Dharma" in the term of a person skilled in the art) provided rotatably on the lock box 7 via a receiving seat by a predetermined amount, and 9 denotes a drive cam. 8 is a lock piece ("dead bolt" in a term of ordinary skill in the art) that appears and disappears by the driving force of No. 8. The dead bolt 9 is disengaged from a strike on the door frame side (not shown).
[0013]
The lock thumb-turn device 2 of the present invention has a built-in cylinder lock in a sun-turn mounting cylinder described later. Generally, the drive shaft of the indoor (thumb-turn) side cylinder lock and that of the outdoor cylinder lock 6 are coaxial. When one of them is positioned and one of them is rotated, the deadbolt 9 appears and retracts with reference to the front of the lock box 7.
[0014]
That is, the drive shafts of the inner and outer cylinder locks are mechanically connected so as to interlock with each other, and when one of the keys K, K1 is operated, the drive cam 8 rotates and the engagement drive arm causes the drive cam 8 to be dead. The bolt 9 appears (applies and unlocks).
[0015]
Next, main members constituting the lock thumb-turn device 2 of the present invention will be described. Reference numeral 11 denotes a thumb-turn mounting cylinder fixed to the door 1 such that one end protrudes from the inner wall surface 1a of the door 1 and the other end fits into a fitting hole formed in the wide side wall of the lock box 7. The thumb-turn mounting cylinder 11 as the fixing member is shown in FIG. 3 (for convenience of explanation, a perspective view from the front end side and from the bottom side) and FIG. 4 (for convenience of explanation, a perspective view from the rear end side and from the plane side). : A perspective view in which the thumb-turn mounting cylinder 11 of FIG. 3 is repeatedly turned to the near side), a long cylindrical hollow body 12 and an annular part partially closing the opening at the tip end side of the hollow body 12. 13.
[0016]
The fitting projections 14 are provided symmetrically on a part of the outer peripheral wall of the rear end of the hollow body 12, and these fitting projections 14 are used for fitting the lock box 7 described above. Fit into the hole. Reference numeral 15 denotes a stopper provided on one of the fitting protrusions 14 or on a part of the outer peripheral wall of the rear end of the hollow body 12 in a small protrusion shape. In the case of "left hand" or "right hand", the rotation of the thumb turn cylinder 35 and the rotating body 36 in the unlocking direction is prevented via one of the movable lock pieces 31, 31A described later.
[0017]
Reference numeral 16 denotes a guide elongated hole formed in a part of the outer peripheral wall of the rear end of the hollow body 12 with reference to the stopper portion 15. In this embodiment, the guide elongated hole 16 is in a state of being attached to the door 1. , Formed on the bottom side of the hollow body 12.
FIG. 3 is a perspective view of the thumb-turn mounting cylinder 11 as viewed from the front end side and the bottom side for the sake of convenience of description. As is clear from FIG. It is formed in an arc shape in the circumferential direction of the hollow body 12 so as to be located immediately below the front of the stopper 15 formed in the center at the protrusion.
[0018]
Reference numerals 17a and 17b are selective mounting holes for stopper pins formed on a part of the outer peripheral wall of the rear end of the hollow body 12 similarly to the guide elongated holes. In the present embodiment, a total of two of these selective mounting holes 17a and 17b are formed at predetermined intervals on a circumferential line of the hollow body 12 where the guide elongated hole 16 is formed. Here, with reference to FIG. 4, one selective mounting hole 17a (right side in FIG. 4, left side in FIG. 12) formed near the upper fitting projection 14 is a first selective mounting hole for convenience of description, The other selective mounting hole 17b (the left side in FIG. 4 and the right side in FIG. 12) that is paired with the first selective mounting hole is referred to as a second selective mounting hole.
[0019]
Reference numeral 18 denotes a stopper pin that is selectively inserted into the first and second selective mounting holes 17a and 17b in accordance with the opening of the door 1. When the stopper pin (for example, male screw) 18 is replaced with one of the first and second selective mounting holes (for example, female screw) 17a and 17b, the locking direction of the tubular operating body described later is reversed. In this embodiment, when the door is left-handed as shown in FIG. 1, a stopper pin 18 is screwed into the first selective mounting hole 17a. Therefore, when the stopper pin 18 is replaced from the first selective mounting hole 17a to the second selective mounting hole 17b, the locking direction of the tubular operating body is reversed. This point will be described later with reference to FIGS. 16 to 25 as a case of the right hand of the door.
[0020]
Reference numeral 19 denotes a ring-shaped locking groove for an elastic stopper formed on the inner peripheral wall of the rear end of the hollow body 12 of the thumb-turn mounting cylinder 11.
[0021]
Next, reference numeral 21 denotes a cylindrical operating body which is fitted externally to the thumb-turn mounting cylinder 11, which is rotatably mounted on the hollow body 12 of the thumb-turn mounting cylinder 11 as shown in FIGS. And a plurality of mountain-shaped finger hooking operation parts 23 symmetrically protruding from a part of the outer peripheral wall of the outer end of the cylindrical control part 22.
[0022]
Reference numeral 24 denotes a first control engagement portion (e.g., a long hole, a notch, or the like) partially formed in the outer peripheral wall of the inner end of the cylindrical control portion 22 along the circumferential direction. Referring to FIG. 5 (an explanatory view in which the bottom of the thumb-turn mounting cylinder 11 is shown upward), the engaging portion 24 is seen upward, and a first pressing surface 24 a for a movable pin 39 described later, It has the other notch end surface (second pressing surface) 24b facing the first pressing surface 24a, and an arc-shaped notch end surface 24c between the first pressing surface 24a and the notch end surface 24b.
[0023]
On the other hand, reference numeral 25 denotes a second control engaging portion (for example, a long hole, a notch portion, etc.) formed in the outer peripheral wall at the inner end of the cylindrical control portion 22 along the circumferential direction. Referring to FIG. 6 (an explanatory diagram in which the upper part of the thumb-turn mounting cylinder 11 is shown upward), the engaging portion 25 is seen upward (in FIG. 5, a portion indicated by an imaginary line located below), and It has a first contact surface 25a that can be engaged with the pin 18, and a second contact surface 25b that comes into contact with the stopper pin 18 when the stopper pin 18 is replaced with the second selective mounting hole 17b described above.
[0024]
Further, the tubular operating body 21 has a plurality of guide grooves 26, 26 which are adapted to the shape of the movable lock piece 31 on the inner peripheral wall at the inner end. As shown in FIG. 6, for example, these guide grooves 26, 26 have a first loose fitting groove 26a partially formed in the circumferential direction and a second fitting groove orthogonal to the first loose fitting groove 26a. In the present embodiment, the pair of left and right movable lock pieces 31 are guided in directions in which they are engaged with and disengaged from the stopper portion 15 of the thumb turn mounting cylinder 11. Each of the second fitting grooves 26b reaches the inner end face so that the engaging claw portion of the movable lock piece 31 protrudes.
[0025]
31 and 31A are movable lock pieces provided symmetrically on the left and right. Each of the movable lock pieces 31, 31A is slidably loosely fitted into the left and right guide grooves 26, 26 as described above. In the present embodiment, each movable lock piece 31 is incorporated in each of the guide grooves 26 on the inner wall surface of the cylindrical operating body so as to cooperate with the cylindrical operating body 21, and is biased by an urging spring 34. Each of them is always urged in a direction to engage with the stopper portion 15 of the thumb turn mounting cylinder 11.
[0026]
In other words, as shown in FIG. 7, the first movable lock piece 31 and the second movable lock piece 31A facing each other at a predetermined interval are attached to the outer wall surface of the hollow body 12 of the thumb-turn mounting cylinder 11, respectively. It is provided in an installed state and is slidably incorporated in the guide grooves 26 of the tubular control section 22 of the tubular operating body 21 in the engaging and disengaging direction (the axial direction of the drive shaft 40 of the rotating body).
[0027]
Since the pair of movable lock pieces 31 and 31A symmetrically arranged between the thumb-turn mounting cylinder 11 and the tubular operating body 21 have the same shape, the configuration of one movable lock piece 31 is provided for convenience of explanation. Only the following description will be given, and the same reference numerals will be given to those of the other movable lock piece 31A, and redundant description will be omitted.
[0028]
As shown in FIG. 7, the movable lock piece 31 is loosely fitted into the first loose fitting groove 26a of the guide groove 26. An index finger-shaped second fitting finger 33 which is continuously provided in an orthogonal state and which is fitted into the second fitting groove 26b of the guide groove 26. The outer end of the second fitting finger 33 has An engagement claw 33a having a blade-like shape is formed to engage with and disengage from the stopper 15 of the thumb-turn mounting cylinder 11.
[0029]
34, 34 are biasing springs (for example, coil springs) for constantly biasing the movable lock pieces 31, 31A in one direction (an engaging and disengaging direction), and these biasing springs 34, 34 guide the cylindrical operating body 21. It is appropriately housed in the grooves 26, 26.
[0030]
Next, the thumb turn cylinder lock 35 and the rotating body 36 provided inside the thumb turn mounting cylinder 11 will be described. The tubular operating body 21 of the lock thumb-turn device 2 is used exclusively for locking the lock X, while the duplicate key K1 is used exclusively for unlocking the lock X.
[0031]
Therefore, in this embodiment, the thumb-turn cylinder lock 35 is incorporated in the thumb-turn mounting cylinder 11 in relation to the unlocking key K1. Thus, the lock thumb-turn device 2 can be used as a lock for a double-sided cylinder regardless of the application.
[0032]
The thumb-turn cylinder lock 35 has an insertion groove, a pin tumbler, and the like for inserting the stem portion of the unlocking key K1, and there is no particular difference from the outer cylinder lock 6. Therefore, the detailed description is omitted.
[0033]
As shown in FIG. 2, the columnar rotating body 36 is provided inside the rear end of the thumb-turn mounting cylinder 11. As shown in FIG. 5, the rotating body 36 has a negative engaging groove 37 in the axial direction at the center of the inner end face. The engaging groove 37 is engaged with a rotating shaft of the cylinder lock 6 (not shown) or a member constituting a clutch mechanism. The rotating body 36 has a female screw 38 as a mounting hole in a part of the outer peripheral wall.
[0034]
The female pin 38 is provided with a movable lock piece disengaging movable pin 39 projecting from the guide slot 16 of the thumb-turn mounting cylinder 11 and reaching the inside of the first control engagement portion 24 of the cylindrical operating body 21. Screwed as possible. As shown in FIG. 6, a drive shaft 40 is provided at the center of the outer end surface of the rotating body 36. The outer end surface of the rotating body 36 is supported by an elastic stopper 41 (for example, a C-shaped ring) that engages with the above-described locking groove 19 so as not to come off the thumb-turn mounting cylinder 11.
[0035]
Next, the operation of the present invention in the case of the left hand of the door will be described with reference to FIGS. FIG. 8 shows the position of the finger hooking operation section 23 of the tubular operation body 21 when the lock X is unlocked. FIG. 9 also shows a state in which the lock X is unlocked (in this embodiment, one movable lock piece 31 is disengaged from one side surface 15a of the stopper portion 15) and then is locked (the movable lock piece 31 is in the stopper portion 15). (A state locked to one side surface 15a).
[0036]
By the way, in the present embodiment, in the unlocked state, (a) the mountain-shaped finger-holding operation section 23 of the tubular operation body 21 is located substantially up and down as shown in the left diagram of FIG. The stopper pin 18 inserted into the first selective mounting hole 17a of the mounting cylinder 11 separates from the first contact surface 25a of the cylindrical operating body 21 as shown in the left diagram of FIG. The release movable pin 39 is separated from one side surface 15a of the stopper portion 15 of the thumb-turn mounting cylinder 11 as shown in the left diagram of FIG. The first pressing end face 24a of the cylindrical operating body 21 is in contact with the first pressing end face 24a in the radial direction, as shown in the left diagram of FIG. And (e) the movable lock piece 31 Since the circumferential edge of the first fitting finger portion 32 is pushed as shown in FIG. 9, the cylindrical operation is performed against the spring force of the biasing spring 34 because the position is associated with the position of the moving pin 39. It has receded into the body 21. (F) At this time, the duplicate key K1 is inserted into the thumb-turn cylinder lock 35, but since the lock X is in the unlocked state, it can be freely removed.
[0037]
Therefore, when changing from the unlocked state to the locked state, (a) the finger is hooked on the finger-holding operation unit 23 of the tubular operation body 21 and the finger is turned substantially 90 degrees in the direction of the arrow in FIG. Note that there is some room for the rotation angle of the tubular operation body 21. At this time, without using the duplicate key K1, the tubular operation body 21 is turned by a finger to be in a locked state. As a result, at the time of locking, the mountain-shaped finger hooking operation part 23 of the cylindrical operation body 21 is located on the left and right as shown in the right diagram of FIG. As shown in the right diagram, the first contact surface 25a of the tubular operating body 21 abuts, and (c) the movable lock piece engagement releasing movable pin 39 has a margin in the rotation angle of the tubular operating body 21. As shown in the right view of FIG. 13, the movable member 11 moves to the right side beyond the one side surface 15 a of the stopper portion 15 of the thumb-turn mounting cylinder 11 to be brought into contact with the cutout end surface 16 b on the other side of the guide slot 16. (D) One of the first pressing end surfaces 24a of the cylindrical operating body 21 is separated from the cutout end surface 16a on one side of the guide slot 16 as shown in the right diagram of FIG. Approaching the notch end face 16b of the movable pin 39 9 (e), the movable lock piece 31 moves the movable pin 39 away from the circumferential edge of the first fitting finger 32 as shown by the imaginary line in FIG. As a result, the engaging claw portion 33a projects from the cylindrical operation body 21 and is locked to one side surface 15a of the stopper portion 15 of the thumb turn mounting cylinder 11.
[0038]
In the present embodiment, since the movable lock piece 31 is associated with the position of the movable pin 39, it is necessary to return the cylindrical operation body 21 in a slightly reverse direction at the time of locking. In consideration of this point, in the present embodiment, the end of the first fitting finger portion 33 of the movable pin 39 is formed in an inclined shape, and the movable pin 39 can slide on the inclined cam surface 32a.
[0039]
Therefore, in the case of the left hand of the door 1, when the cylindrical operation body 21 of the thumb turn device 2 is rotated counterclockwise as shown in FIG. 15, the dead bolt 9 protrudes to the right via the drive cam 8. .
[0040]
On the other hand, FIG. 10 shows a case where the locked state is changed to the unlocked state. In other words, this is the case where the engagement is released from the state where the movable lock piece 31 is locked on the one side surface 15a of the stopper portion 15. In the locked state, the engaging claw portion 33a of the movable lock piece 31 is engaged with the one side surface 15a of the stopper portion 15 of the thumb turn mounting cylinder 11, even if the cylindrical operation body 21 is turned in the opposite direction. From, can not be turned. In this embodiment, a duplicate key K1 for rotating the rotating body 36 is required.
[0041]
Therefore, the duplicate key K1 is inserted into the thumb-turn cylinder lock 35, and the duplicate key K1 is naturally turned in the unlocking direction. However, when the rotating body 36 starts to rotate by the operation of the duplicate key K1, the movable pin integrated with the rotating body 36 is rotated. 39 gradually reaches the circumferential edge of the first fitting finger portion 32 while pressing the inclined cam surface 32 a of the movable lock piece 31.
[0042]
As a result, the movable lock piece 31 retreats while being guided by the guide groove 26 and against the spring force of the biasing spring 34. When the movable lock piece 31 retreats into the inside of the tubular operating body 21, the engaging claw 33a separates from the stopper 15 (disengagement). Therefore, when the duplicate key K1 is turned as it is, the movable pin 39 pushes back the first pressing surface 24a of the tubular operating body 21, so that the tubular operating body 21 rotates to the unlocking position described above.
[0043]
As described above, in the present embodiment, when the cylindrical operation body 21 is rotated in the locking direction with a finger at the time of locking, the movable lock piece 31 is guided by the guide groove 26 at a predetermined position, and the urging spring 34 is moved. And engages with one side surface 15 a of the stopper portion 15. Therefore, the cylindrical operation body 21 is prevented from rotating in the unlocking direction. On the other hand, at the time of unlocking, the movable lock piece 31 moves in the direction of disengagement against the spring force of the biasing spring 34 in accordance with the movement of the movable pin in the circumferential direction by the operation of the unlocking key K1. fall back.
[0044]
Next, FIGS. 16 to 25 show the case where the above-mentioned thumb turn device X is attached to the free end of the door 1 in the case of the right hand of the door. Although the left hand of the door is described above, as shown in FIG. 16, the case where the axis of the hinge b attached to the vertical frame of the door frame a is seen on the right side when viewed from the opening side of the door 1 is referred to as “right hand”. It is said. In the embodiment of the present invention, the locking direction can be easily changed by changing the mounting position of the stopper pin 18 with respect to the selective mounting holes 17a and 17b formed in the thumb turn mounting cylinder 11.
[0045]
In other words, as shown in FIGS. 17 and 18, if only the stopper pin 18 is replaced from the first selective mounting hole 17a to the second selective mounting hole 17b without replacing other members, the cylindrical operating body 21 Can be turned a predetermined amount in the reverse direction. In this case, since the rotation direction of the tubular operating body 21 is changed, in this embodiment, the other movable lock 31A is used, and as shown in FIGS. The other side 15b is disengaged.
[0046]
When the cylindrical operating body 21 is operated by a finger to rotate in the other direction (clockwise direction indicated by an arrow) as shown in FIG. 21, the cylinder located near the first selective mounting hole 17a as shown in FIG. The second contact surface 25b of the operation member 21 approaches the stopper pin 18.
[0047]
On the other hand, as shown in FIG. 23, the movable pin 39 of the rotating body is pushed around the second pressing surface 24b of the tubular operating body 21 and rotates to the locking position (39 moves from right to left). As a result, the second contact surface 25b of the tubular operating body 21 contacts the stopper pin 18 at a predetermined position, and the movable lock piece 31A can be engaged with the other side surface 15b of the stopper portion 15. The specific operation mode is the same as the case of the left hand described above, and thus redundant description is omitted, but FIGS. 19 to 25 are shown for the purpose of deepening understanding.
[0048]
FIG. 19 is an explanatory view similar to FIG. 9, in which the lock X is unlocked (in the present embodiment, the other movable lock piece 31A is disengaged from the other side surface 15b of the stopper portion 15), and then the lock state ( The state where the movable lock piece 31A is locked to the other side surface 15b of the stopper portion 15) is shown. The mode of each member in the unlocked state is the same as the above (A) to (F).
[0049]
On the other hand, FIG. 20 is an explanatory diagram in the case where the state changes from the unlocked state to the locked state. The operation mode at this time is also the same as the above (a) to (e). FIG. 23 is the same as FIG. It can be seen from the bottom view that the movable pin 39 is located on the other cutout end face 16b of the guide slot 16 and is located on the opposite side as compared with FIG. Therefore, when the tubular operating body 21 is rotated in the direction of the arrow in the left figure in the figure, the movable pin 39 is pushed by the second pressing end face 24b of the tubular operating body 21 and moves in the guide elongated hole 16, and as a result, It moves to the left side shown in the right figure of FIG.
[0050]
Therefore, in the right view of FIG. 23, when the rotation of the tubular operating body 21 is slightly returned in the direction opposite to the arrow direction in the left figure, the second movable lock piece 31A is slightly away from the movable pin 39, so that the second The movable lock piece 31A protrudes by the spring force of the urging spring 34 and engages with the other side surface 15b of the stopper portion 15 (in the present embodiment, as described above, the movable lock piece 31A is also associated with the position of the movable pin 39). Therefore, it is necessary to return the cylindrical operation body 21 in the slightly opposite direction at the time of locking.)
[0051]
FIG. 24 shows the relationship between the movable pin 39 and the second pressing end surface 24b and the relationship between the stopper pin 18 and the second contact surface 25b of the tubular operating body 21 as viewed from the rear side. In this case, when the cylindrical operation body 21 is rotated in the counterclockwise direction indicated by the arrow, the movable pin 39 is pushed by the second contact surface 25b of the cylindrical operation body 21 and moves rightward as shown in the right diagram. The second contact surface 25b of the cylindrical operating body 21 abuts on the stopper pin 18.
[0052]
Therefore, in the case of right hand, when the cylindrical operation body 21 of the same thumb turn device 2 is rotated clockwise as shown in FIG. 25, the dead bolt 9 projects to the left via the drive cam 8.
[0053]
【Example】
In the first embodiment, the stopper portion 15 on the fixing member side may be provided on a part of the outer peripheral wall of the rear end portion in a circumferentially protruding wall shape. Further, the control engagement portion 24 formed on the cylindrical control portion 22 of the cylindrical operation body 21 may be a guide elongated hole formed in the circumferential direction. Further, the cylindrical operation body may be the knob type shown in the embodiment instead of the flat L-shaped lever, so that the rotation direction of the cylindrical operation body at the time of locking does not necessarily have to correspond to the left and right sides ( If you are left-handed, you do not need to rotate counterclockwise.)
[0054]
In addition, in the first embodiment, the thumb-turn cylinder 35 is provided inside the thumb-turn mounting cylinder, and in the case of unlocking, the unlocking is performed by the duplicate key K1, but the unlocking means for pushing down the movable lock piece is suitable. The thumb-turn cylinder 35 and the duplicate key K1 are not specific (limited) requirements of the present invention because they can be released by an engagement release tool (a screwdriver, tweezers, a screw). The duplicate key K1 is merely an example of the unlocking means of the embodiment.
[0055]
Next, in this section, a description will be given of a design modification example (including one in which the configuration requirements are added) included in the technical idea of the present invention. In the following description of the embodiments, the same or similar portions (functions are the same) as those in the first embodiment are denoted by the same or similar reference numerals, and duplicate description is omitted.
[0056]
FIGS. 26 to 29 show a design modification (second embodiment) included in the technical idea of the present invention. 26 and 27 are conceptual diagrams of the second embodiment. Therefore, in particular, the positions of the stopper pin selective mounting holes 17a and 17b and the stopper pin 18 are only conceptually illustrated from the bottom view for convenience of description (as shown in FIG. 29, the selective mounting holes 17a and 17b). , 17b, etc. appear to the left and right).
[0057]
The second embodiment is different from the first embodiment mainly in that (1) the number of the movable lock pieces 31B is one, and (2) the shape of the movable lock pieces 31B is a flat cross like a bird. (3) Therefore, the first fitting finger portions 32 of the movable lock piece 31B are symmetrically connected to each other so as to intersect the second fitting finger portions 33, (4) The engaging claw 33a at the tip of the two fitting finger portions 33 is not necessarily formed in the shape of a blade, but is formed in the shape of a fingertip, for example. 16 is not formed on the circumferential line where it is located, but is formed, for example, near the finger hooking operation portion 23 of the hollow body of the cylindrical operation body 21A. (6) Therefore, the stopper pin selection mounting holes 17a, 17b. Has a required interval at the tip of the cylindrical operating body 21A. When the stopper pin 18 is inserted into the first selective mounting hole 17a as shown in FIG. 26, it corresponds to the left hand of the door, while the stopper pin is inserted into the second selective mounting hole 17b as shown in FIG. When 18 is inserted, it corresponds to the right hand of the door.
[0058]
Referring to FIG. 29 (similar to FIG. 14) in the above configuration, for example, in the case of the left hand of the door, when the cylindrical operating body 21A is rotated in the direction of the arrow, the rotating body 36 and the rotating body 36 are integrated. The movable pin 39 is pushed by the first pressing surface 24a of the tubular operating body 21A and moves clockwise, as shown in the right diagram of FIG. At this time, the first contact surface 25a of the cylindrical operating body 21A abuts and engages with the stopper pin 18 of the first selective mounting hole 17a. The engaging claw 33a of the movable lock piece 31B engages with one side surface 15a of the stopper portion 15.
[0059]
Therefore, when the stopper pin 18 is inserted into the second selective mounting hole 17b, as shown in FIG. 27, the locking direction of the tubular operating body 21A is different from the arrow direction A of FIG. On the contrary, at the time of locking, the engaging claw portion 33a of the movable lock piece 31B engages with the other side surface 15b of the stopper portion 15.
[0060]
Therefore, it is incorporated in the guide groove on the inner wall surface of the tubular operating body so as to cooperate with the tubular operating body, and is always urged by a biasing spring in a direction of engaging with the stopper portion on the fixed member side. Regardless of the number of the movable lock pieces, either one (the second embodiment) or two (the first embodiment), the first selective mounting hole 17a or the second selective mounting hole 17b on the fixed member side. By inserting the stopper pin 18 into any one of the above, the locking rotation direction of the tubular operation body 21 (21A) changes, and accordingly, the thumb-turn device of the present invention can cope with the difference of the doors (left hand, right hand). Can be attached to the free end of the door.
[0061]
Next, in the thumb-turn device 2A of the third embodiment shown in FIGS. 30 and 31, the main difference from the first embodiment is that a recess 51 is formed in the outer peripheral wall of the hollow body 12 of the thumb-turn mounting cylinder 11B. On the other hand, a mountain-shaped or curved-shaped recess 52 facing the recess 51 at the time of locking is formed on the inner wall surface of the tubular control portion 22B of the tubular operating body 21B, and a click mechanism component member is provided in the recess. Is to incorporate. The click mechanism components include a click spring 53 incorporated in the recess 51 of the thumb-turn mounting cylinder 11B, and an engagement claw of the movable lock piece 31 urged by the click spring 53 and attached to the stopper portion 15. A rocket head-type click engagement body 54 that engages with the curved concave portion 52 of the tubular operating body 21B when the 33a is in an engageable state (when the lock is locked). With this configuration, a click feeling can be obtained when locking.
[0062]
【The invention's effect】
As is apparent from the above description, the present invention has the following effects.
(1) By inserting a stopper pin into one of the first selection mounting hole and the second selection mounting hole on the fixing member side, the locking rotation direction of the tubular operating body changes, thereby changing the door's own hand (left hand) , Right hand), the thumb-turn device of the present invention can be attached to the free end of the door.
(2) Like a dial lock, it can be easily locked by simply rotating the tubular operating body in one direction with a finger.
(3) The unlocking state of the thumb-turn device cannot be easily released unless an engagement release tool for releasing the engagement of the key lock or the movable lock piece is operated. In particular, when a lock is attached to a door having glass, even if the glass is broken by an intruder, the tubular operation body cannot be easily turned in the unlocking direction. . As a result, unauthorized unlocking from outside can be prevented.
[Brief description of the drawings]
1 to 25 are explanatory diagrams showing a first embodiment of the present invention, FIGS. 26 to 29 are explanatory diagrams showing a second embodiment of the present invention, and FIGS. 30 and 31 are third embodiment of the present invention. It is each explanatory drawing which shows an example.
FIG. 1 is an explanatory view of a state in which the present invention is attached to a door in a case where the door is left-handed.
FIG. 2 is a schematic explanatory view showing an example of a use state including an implementation environment.
FIG. 3 is a perspective view of the thumb-turn mounting cylinder as viewed from the distal end side and the bottom side.
FIG. 4 is a perspective view of the rear end portion of the thumb turn mounting cylinder and a plan view thereof.
FIG. 5 is an exploded perspective view of a main member (as viewed from the bottom side).
FIG. 6 is a schematic explanatory view of a main member in comparison with FIG. 5 (a state viewed from the upper side).
FIG. 7 is a schematic explanatory view of main members (movable pins, movable lock pieces, urging springs, and the like).
FIG. 8 is a front view showing an example (left-handed) of an operation mode of the tubular operation body.
FIG. 9 is a schematic explanatory diagram in a case where a state is changed from an unlocked state to a locked state.
FIG. 10 is a schematic explanatory diagram in a case where the state changes from a locked state to an unlocked state.
FIG. 11 is a front view showing the locking rotation direction of the tubular operation body in the case of left-handedness.
FIG. 12 is an explanatory view seen from a plane in FIG. 11;
FIG. 13 is an explanatory diagram viewed from the bottom surface in FIG. 11;
FIG. 14 is an explanatory view as viewed from the back in FIG. 11;
FIG. 15 is an explanatory diagram showing a moving direction of a driving cam and a dead bolt in the case of left-handed.
FIG. 16 is an explanatory view of a state where the present invention is attached to the door in a case where the door is right-handed.
FIG. 17 is an explanatory diagram showing a position where a stopper pin is inserted into a thumb turn mounting cylinder.
FIG. 18 is an explanatory diagram showing the difference from the back in the case of left and right hand.
FIG. 19 is an explanatory view similar to FIG. 9 in the case of the right hand of the door.
FIG. 20 is an explanatory diagram similar to FIG. 10 in a case where the door is right-handed;
FIG. 21 is a front view showing the locking rotation direction of the tubular operation body in the case of the right hand of the door.
FIG. 22 is an explanatory diagram viewed from a plane in FIG. 21;
FIG. 23 is an explanatory diagram viewed from the bottom surface in FIG. 21;
FIG. 24 is an explanatory view as viewed from the back in FIG. 21;
FIG. 25 is an explanatory diagram showing a moving direction of a drive cam and a dead bolt in a right-handed case.
FIG. 26 is a conceptual explanatory diagram at the time of locking in the case of left-handedness.
FIG. 27 is a conceptual explanatory diagram at the time of locking in a right-handed case.
FIG. 28 is an explanatory view showing another example of a main part (movable lock piece).
FIG. 29 is an explanatory view from the back in the case of a left hand.
FIG. 30 is a schematic explanatory view similar to FIG. 2 of a third embodiment.
FIG. 31 is a schematic explanatory view of a main part.
[Explanation of symbols]
X: Lock, 1 ... Door, 2 ... Thumb-turn device, 3 ... Indoor, 4 ... Outdoor, 5 ... Cylinder mounting cylinder, 6 ... Cylinder lock, 7 ... Lock box, 8 ... Drive cam, 9 ... Locking piece, 11, 11A Reference numeral 11B: Thumb-turn mounting cylinder, 12: hollow body, 13: annular part, 14: fitting projection, 15: stopper part, 15a: one side of the stopper part, 15b: other side of the stopper part, 16: guide elongated hole , 16a: One notch end face, 16b: The other notch end face, 17a: First selective mounting hole, 17b: Second selective mounting hole, 18: Stopper pin, 19: Locking groove for elastic stopper, 21, 21A, 21B: cylindrical operating body, 22, 22B: cylindrical control unit, 23: finger-hung operating unit, 24: first control engaging unit, 24a: first pressing surface, 24b: second pressing surface, 25: second control Control engagement part, 25a ... first contact surface, 25b ... Contact surface, 26 guide groove, 26a first loose fitting groove, 26b second fitting groove, 31, 31A, 31B movable lock piece, 32 first fitting finger part, 32a cam surface, 33 ... Second fitting finger portion, 33a engaging claw portion, 34 urging spring, 35 thumb lock cylinder, 36 rotating body, 38 female screw, 39 movable pin, 40 drive shaft, 41 stopper .

Claims

A thumb turn mounting cylinder having a movable lock piece stopper portion, a stopper pin selection mounting hole, and a guide elongated hole in a hollow body portion, a cylindrical operating body rotatably fitted to the thumb turn mounting cylinder, and a cylindrical operating body. One or two movable lock pieces incorporated in a guide groove on the inner wall surface of the tubular operating body so as to cooperate with the operating body, and constantly urged by a biasing spring in a direction of engaging with the stopper portion. A rotating body that is rotatably housed in the thumb-turn mounting cylinder and has a movable pin that penetrates the guide long hole and can contact the first pressing surface or the second pressing surface of the cylindrical operating body; In the case where the door is left-handed, when the cylindrical operating body is rotated in one direction by operating a finger, the rotating body is pressed against the first pressing surface of the cylindrical operating body via a movable pin. Turned and rotated to the locked position and movable When the door is right-handed, when the stopper pin is replaced with the second selective mounting hole from the first selective mounting hole, the lock piece can be engaged with one side surface of the stopper portion. When the locking direction of the tubular operating body is reversed, and the tubular operating body is operated by a finger and rotated in the other direction, the rotating body is pushed around the second pressing surface of the tubular operating body via the movable pin, and A thumb-turn device for a lock, wherein the thumb-turn device for a lock is turned to a locking position and the movable lock piece is in a state capable of engaging with the other side surface of the stopper portion.

2. The stopper according to claim 1, wherein when the cylindrical operating body is rotated in the locking direction, the first contact surface or the second contact surface of the cylindrical operating body is detachably attached to the selective mounting hole at a predetermined position. A thumb-turn device for a lock characterized by hitting a pin.

2. The lock thumb-turn device according to claim 1, wherein the movable lock pieces 31 and 31A having the same shape are provided symmetrically at predetermined intervals.

The lock thumb-turn device according to claim 1, wherein the movable lock piece (31B) is formed in a flat cross shape.

In the first aspect, the movable lock piece 31 is provided with a first fitting finger portion having a cam surface at an end portion that is in sliding contact with the movable pin, and is connected to the first fitting finger portion in a direction intersecting therewith and protrudes. A thumb lock device for a lock, comprising: a second fitting finger portion having an engagement claw portion engaging and disengaging from a stopper portion at an end portion.

2. The thumb-turn cylinder according to claim 1, wherein the thumb-turn mounting cylinder includes a thumb-turn cylinder lock which is operated by operation of an unlocking key, and in unlocking, the movable pin is moved by the operation of the unlocking key. A thumb lock device for a lock, wherein the movable lock piece retreats in the direction of disengagement against the spring force of the biasing spring.

In the lock box attached to the door 1 according to claim 1 or 2, the outer cylinder lock 6 that can be applied and unlocked by the operation of a duplicate key is provided with a thumb-turn through a drive cam 8 in the lock box. A thumb-turn device for a lock, which is provided coaxially with a cylinder lock 35.

2. A concave part is formed in the outer peripheral wall of the hollow body part 12 of the thumb-turn mounting cylinder 11B, and a mountain-shaped concave part facing the concave part at the time of locking is formed in the cylindrical operating body 21B. A thumb-turn device for a lock, wherein the thumb-turn device is formed on an inner wall surface of the control section 22B, and a click mechanism component is incorporated in the recess.

A thumb-turn mounting cylinder having a stopper portion for a movable lock piece, a selective mounting hole for a stopper pin, and a guide long hole, a cylindrical operating body externally fitted to the thumb-turn mounting cylinder, and cooperating with the cylindrical operating body. A movable lock piece incorporated in a guide groove on the inner wall surface of the tubular operating body and urged in a direction to engage with the stopper portion; A rotary member having a movable pin that can penetrate through the hole and contact the first pressing surface or the second pressing surface of the cylindrical operating body, and the stopper pin is moved from the first selective mounting hole to the second selective mounting hole. A thumb-turn device for a lock, wherein the locking direction of the tubular operation body is reversed when the thumb-turn device is replaced.