JP4170021B2

JP4170021B2 - Lock release prevention operation tool

Info

Publication number: JP4170021B2
Application number: JP2002155592A
Authority: JP
Inventors: 木下琢生
Original assignee: 美和ロック株式会社
Priority date: 2002-02-13
Filing date: 2002-05-29
Publication date: 2008-10-22
Anticipated expiration: 2022-05-29
Also published as: JP2003307053A

Description

【０００１】
【発明の属する技術分野】
本発明は、錠前の不正解除防止操作具に関し、特に戸（開閉戸、引戸）に取り付けられる錠前の不正解除防止操作具に適する。
【０００２】
【従来の技術】
従来、例えば内側引戸に取り付けられる錠前の操作具は、ケース状の取り付け枠と、この取り付け枠に上下方向にスライド自在に装着され、かつ、取り付け枠の垂直案内長孔から突出する摘み部を有する摘み操作板とから成り、前記摘み操作板には内側引戸に設けられた引戸錠の施錠片（例えば鎌片）を施錠又は解錠方向へ作動させるための駆動軸が設けられていた。
【０００３】
上記構成に於いて、内外の引戸が鎌片を介して施錠されている場合、泥棒が引戸錠の鎌片を後退させようとする時には、例えば重なり合った内側と外側の框の接合面に硬いバーを差込み、無理やりに隙間を作る。そして、先端部が鉤状の針金部材（泥棒の道具の一つ）を隙間から差込み、引戸錠を構成する摘み操作板の摘みに引っ掛けようとする。このような場合、針金部材の先端部が摘み部に引っ掛かると、泥棒は摘み部を介して上手に摘み操作板を上方に持ち上げる。そうすると、鎌片が摘み操作板のスライド、連動部材の移動などを介して後退する。
【０００４】
したがって、摘み操作板を単純に持ち上げる又は押し下げるという一つのアクション操作だけで鎌片が解錠する引戸錠は、戸のガラスを局部的に破らなくても、不正解除される確立が高いという問題点がある。
【０００５】
【発明が解決しようとする課題】
本発明の第１の目的は、泥棒が外から戸の隙間、針金部材などを利用して摘み操作部材を操作し、錠前の鎌片を解錠状態にすることを確実に防止することを目的とする。特に、本発明は、戸が施錠状態の時に於いて、泥棒が錠前の鎌片を室外から解錠方向へ後退させようとする時に、例えば重なり合った内側と外側の框の接合面に硬いバーを差し込んで無理やりに隙間を作り、次にその隙間に針金部材などを差込んで、摘み操作部材を操作しながら戸に装備された錠前の鎌片を解錠方向へと回転させる行為を確実に防止することができることを目的としている。
【０００６】
第２の目的は、各部材を合理的に組み合わせ、第１の目的を達成することである。第３の目的は、第２実施例又は第３実施例に於いて、片手の指二本（例えば左手の親指と人差し指）で摘み操作部材の突起状先端部を摘むようにするだけで、ロック解除操作片が作動（回動或いはスライド）し、そのまま突起状先端部を摘んだ状態で摘み操作部材をスライドさせ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】
本発明の錠前の不正解除防止操作具は、案内窓５ａに連通する嵌合凹所９を有するケース本体１と、このケース本体１の裏側に固定され、かつ、垂直長孔１３を有する蓋体８と、前記垂直長孔１３を貫通する施錠片用駆動軸５６の内端部を支持し、かつ、前記案内窓５ａから突出する摘み部２０を操作すると前記嵌合凹所９内をスライドするようにケース本体１と蓋体８との間に内装された摘み操作部材６と、この摘み操作部材６に支持板４０を介して一体的に設けられ、かつ、摘み用先端部４９が前記摘み部２０から突出するように後端部４８が軸支されたロック解除操作片４２と、摘み操作部材６の初期位置に於いて、このロック解除操作片４２の後端部４８に突起状の当り部３５が当接するように前記摘み操作部材６に軸支され、かつ、他方の突起状係合部３６が固定部材としての蓋体又はケース本体の係止部に係止されているロック片３０とから成る。
【０００８】
また本発明の錠前の不正解除防止操作具は、案内窓に連通する嵌合凹所を有するケース本体と、前記嵌合凹所をカバーするようにケース本体の裏側に固定された蓋体と、前記嵌合凹所に上下動自在に内装され、かつ、前記案内窓から突出する摘み部を有する摘み操作部材と、この摘み操作部材に一体的に設けられた支持板を介して該摘み操作部材に支持された施錠片用駆動軸と、摘み操作部材に回動可能に軸支され、かつ、バネで復帰方向に付勢されたロック解除操作片とから成り、前記摘み操作部材６Ａの初期位置に於いて、前記ロック解除操作片は、摘み操作部材の摘み部から突出する突起状先端部に片手の指を引っ掛けるようにして操作されると、摘み操作部材に設けられたロック片が自由な状態になるように回転し、このままの状態を保持しながらさらに片手の他の指で前記摘み部を摘んで摘み操作部材をスライドさせると、前記ロック片はロック解消方向へと回転するように軸支されていることを特徴とする。
【０００９】
上記構成に於いて、ロック解除操作片４２Ａの先端部は、親指の先端部の外観が呈するように指先状に形成され、摘み操作部材６Ａの摘み部２０Ａに形成した上下いずれかの摘み切欠部６１から多少突出していることを特徴とする（段落００４８参照）。
【００１０】
さらに、本発明の錠前の不正解除防止操作具は、案内窓に連通する嵌合凹所を有するケース本体と、前記嵌合凹所をカバーするようにケース本体の裏側に固定された蓋体と、前記嵌合凹所に上下動自在に内装され、かつ、前記案内窓から突出する摘み部を有する摘み操作部材と、この摘み操作部材に一体的に設けられた支持板を介して該摘み操作部材に支持された施錠片用駆動軸と、摘み操作部材に回動可能に軸支され、かつ、バネで復帰方向に付勢されたロック解除操作片とから成り、前記摘み操作部材６Ａの初期位置に於いて、前記ロック解除操作片は、摘み操作部材の摘み部から突出する突起状先端部が片手の指でプッシュするように押圧されると摘み操作部材に設けられたロック片が自由な状態になるように回転し、このままの状態を保持しながらさらに片手の他の指で前記摘み部を摘んで摘み操作部材をスライドさせると前記ロック片はロック解消方向へと回転するように軸支されていることを特徴とする。
【００１１】
上記構成に於いて、ロック解除操作片は、摘み操作部材の摘み部に形成された嵌合口に遊嵌合する操作片と、この操作片に係合するように前記摘み部内に軸支されたストッパー機能を有するブロック状のロック片用解除部とから成ることを特徴とする。
【００１２】
【発明の実施の形態】
図１乃至図１３は、本発明の一実施例を示す各説明図である。１は錠前の不正解除防止操作具（以下、単に「操作具」という。）である。操作具１は、例えば図２で示すように内側引戸２に固定的に取り付けられる。錠前の一例としての引戸錠の構成は特に図示しないが、一般に内側引戸２の框内に設けられ、仮想線で示したように長板状の連動部材３に軸支された施錠片（鎌片）４を有し、施錠片４は相手方の外側引戸に設けた受け金具に掛合する。本実施例では引戸錠そのものは発明の特定要件ではないので、詳細な説明は割愛する。
【００１３】
操作具１の構成部材を大まかに区分けすると、任意形状のケース本体５と、このケース本体５内にスライド自在に内装され、かつ、ケース本体５の案内窓５ａから突出する突起状摘み部２０を有する摘み操作部材（通称、「サムターン」）６と、この摘み操作部材６に他の部材を介して間接的に設けられ、かつ、該摘み操作部材６を初期位置の所でロックするロック機構部材７と、前記摘み操作部材６及びロック機構部材７を覆うようにケース本体５の裏側に固定された蓋体８とから構成されている。
【００１４】
以下、順番に各構成部材を説明する。図１は操作具１の斜視図である。図２は図１の２−２線拡大概略断面図である。図１及び図２を参照にしてケース本体５を説明する。
【００１５】
ケース本体５は、合成樹脂材で長枠状に形成されている。ここではケース本体５の付随的な形状についての説明は省略する。５ａはケース本体５の中央部に縦方向に形成された長方形状の案内窓、５ｂはケース本体５の上下端部にそれぞれ形成された固着具用取り付け孔、５ｃはケース本体５の上下端部の裏面にそれぞれ形成されたメネジ小孔である。
【００１６】
なお、ケース本体５の両端部の外壁面は傾斜状に形成されているが、上端部から下端部に至るまでその外壁面５ｄは垂直であっても良い。
【００１７】
９はケース本体５の裏側に形成された所要の嵌合凹所である。この嵌合凹所９は、少なくとも摘み操作部材６及びロック機構部材７を収納する大きさを有している。また、嵌合凹所９の一側内面には比較的小さな切欠溝９ａ（図５の左側を参照）が形成されている。さらに、嵌合凹所９の中央部は前記案内窓５ａと連通している。
【００１８】
１０はケース本体５の裏側の上端部から下端部にかけてトラック形状に浅く形成された嵌合溝で、この嵌合溝１０には長板状の蓋体８が嵌り合う。なお、嵌合溝１０は取り付け孔５ｂやメネジ小孔５ｃが形成された部分を除き、前記嵌合凹所９と連通している。
【００１９】
また、本実施例ではケース本体５の裏側に形成した嵌合溝１０の中に任意形状の蓋体８を嵌め込んでいるが、設計如何によっては蓋体８をケース枠状に形成し、ケース本体５に外嵌合させても良い。
【００２０】
ここで図３を参照に蓋体８について説明する。図３は蓋体８を嵌合板部１１の内壁面側から見た斜視図である。嵌合板部１１の上下端部には、前述した取り付け孔やメネジ小孔にそれぞれ符合する複数個の貫通孔１２が形成されている。１３は嵌合板部１１の中央部に形成された垂直長孔で、この垂直長孔１３には後述する水平棒状の駆動軸５６が貫通状態に突出する。１４，１５は嵌合板部１１の左右端部をそれぞれ直角に折り曲げて形成された対向側壁である。ここでは、図３を基準にすると、符号１４が左対向側壁、１５が右対向側壁である。
【００２１】
右対向側壁１５の下端部寄りの部位には切欠状の係合溝１６（図５では左側に見える。）が形成されている。左右の対向側壁１４，１５はケース本体５の嵌合凹所９に嵌合すると、嵌合凹所９の左右の側壁面と面接触状態に対向する。この時、蓋体８の係合溝１６とケース本体５の切欠溝９ａとは連通状態に一致する（図５参照）。なお、蓋体８の係合溝１６の方がケース本体５の切欠溝９ａよりも小さい。
【００２２】
図４及び図５は主要部の概略断面説明図である。前述したように、ケース本体５の嵌合凹所９には摘み操作部材６及びロック機構部材７が組み込まれ、しかも、これらの組み合わせ部材６，７を覆うように蓋体８がケース本体５の裏側に固着具を介して固定される。特に図５は蓋体８をケース本体５の嵌合凹所９に嵌合した状態に於いて、内部構造を示すために、蓋体の嵌合板部１１を省略し、かつ、左右の対向側壁１４，１５を断面で示してある。以下、図６ないし図１１も参照にして本発明の主要部について説明する。
【００２３】
まず摘み操作部材６から説明する。摘み操作部材６はケース本体５の嵌合凹所９内にスライド自在に組み込まれると、図４で示すように摘み部２０の先端部は案内窓５ａから突出する。摘み部２０は、本実施例では嵌合凹所９の内壁面と摺動するスライド板部２１の中央部から中空角柱状に突出している。摘み部２０は縦断面である図１０及び背面図である図１１で示すように、長いケース枠状片に形成されている。
【００２４】
すなわち、２２はスライド板部２１に連設する不完全な突壁状の周側壁部で、この周側壁部２２の下端部は、図１１で示すように一部切欠２３と成っている。２４は摘み部２０は裏面の上下端部にそれぞれ段差状に形成された取り付け凹所で、これらの取り付け凹所２４，２４には、さらに取り付け小孔２５，２５がそれぞれ形成されている。なお、前記取り付け小孔２５，２５は設計如何によっては、係合小突起にしても良い。
【００２５】
２６は下方の取り付け凹所２４と摘み部２０側の開口との間に形成されたロック片用の浅い収容凹所である。この浅い収容凹所２６は、前記中空摘み部２０の開口２０ａと連通している。２７はスライド板部２１の内壁面の切欠２３側に形成された小軸穴である。
【００２６】
次に図５及び図６を参照にしてロック機構部材７について説明する。ここで、「ロック機構部材」とは、少なくとも摘み操作部材６の移動をロックするロック片３０及び該ロック片のロック状態を解除するロック解除操作片４２の両方を意味する。
【００２７】
まず摘み操作部材６の上方向への移動をロックするロック片３０から説明する。ここで図６に示すロック片３０説明する前に図２に戻る。図２で示すように、摘み操作部材６の摘み部２０がケース本体５の案内窓５ａの下部に位置（ここでは「初期位置」とする。）する時は、施錠片４は突出し、図示しない外側引戸の受け金具に掛合している。
【００２８】
したがって、従来の引戸錠に於いては、一般に摘み部２０を摘んで摘み操作部材６を上方に押し上げると、施錠片４は引戸錠の連動部材３を介して内側引戸２へと後退する。そこで、本実施例では、摘み操作部材６をワンタッチ（一つのアクション）で押し上げることができないように、ロック片３０等を摘み操作部材６の裏側の浅い収容凹所２６に組み込んでいる。
【００２９】
そこで、図６はロック片３０、短軸３１、ロック片用付勢バネ３２をそれぞれ示す。ロック片３０はアングル状に形成され、中央部には短軸３１用の軸孔３４が形成されている。この軸孔３４を基準にすると、上方に指向して延びている部分がロック解除操作片４２の後端部のストッパー５０と衝突する親指状の当り部３５である。一方、当り部３５に連設して横方向に伸び、かつ、固定部材であるケース本体５の切欠溝９ａの切欠端面又は蓋体８の係合溝１６の端面１６ａに係止されるのが人差し指状の係合部３６である。
【００３０】
前記係合部３６は、短軸３１に巻装されたロック片用付勢バネ３２の一端部を受けるバネ端受け部３７を有している。短軸３１は摘み操作部材６の小軸孔２７と支持板４０の小軸孔４６を介して固定的に横設される。
【００３１】
また、付勢バネ３２の他端部は図５で示すように摘み操作部材６の周側壁部２２の内面に圧接する。図５に於いて、ロック片３０は短軸３１を中心に付勢バネ３２のバネ力に抗して反時計方向に回転可能であるが、初期位置ではその回転はロック解除操作片４２のストッパー５０に阻止されている。
【００３２】
次に図７，図８を参照にロック解除操作片用支持板４０、ロック解除操作片用支軸４１、ロック解除操作片４２について説明する。金属製のやや長い支持板４０は摘み操作部材６の収容凹所２６に一部の切欠２３（図１１を参照）の除いて閉鎖するように摘み操作部材６の裏側に嵌め込まれる。
【００３３】
したがって、本実施例では所定寸法の長板状に形成されている。４３は上下端部にそれぞれ形成された貫通小孔で、これらの貫通小孔４３，４３は、摘み操作部材６の取り付け小孔２５，２５或いは係合小突起にそれぞれ符合する。４４はやや長孔状の中心孔で、この中心孔４４には棒状の駆動軸５６の内端部が遊嵌合する。
【００３４】
しかして、支持板４０の中央部４０ａは括れており、この括れ部分４０ａから左右一対の軸受け部４５，４５が突出している。また、軸受け部４５，４５の下方の括れ部分４０ａの近くには前述した短軸３１の他端部を支持する小軸孔４６が形成されている。
【００３５】
一本の指で押圧されるロック解除操作片４２は、支持板４０に軸受け部４５，４５、支軸４１を介して枢支されている。このロック解除操作片４２は、左右の軸受け部４５，４５内に回転自在に位置するブロック状の後端部４８と、この後端部４８から板状に延びる摘み用先端部４９と、この摘み用先端部４９に対して角度方向（たとえば略９０度方向）に後端部４８から延びる突片状のストッパー５０とを有する。
【００３６】
前記後端部４８には支軸４１用の軸孔５１が形成されている。また後端部４８は切欠を有する中空となっている。符合５２は図４で示すように支軸４１に巻装されたロック解除操作片４２用のバネで、このバネ５２の一端部は摘み操作部材６に、一方、他端部はロック解除操作片４２の後端部４８の内壁面に圧接している。図４に於いて、ロック解除操作片４２はバネ５２のバネ力により常時時計方向に（摘み用先端部４９が水平状態になるように）付勢されている。
【００３７】
最後に図１２を参照してその他の部材について説明する。５５は支持板４０の外壁面と接合し、かつ、駆動軸５６を有する垂直板５７を所定位置に閉じ込める捕捉板である。この捕捉板５５は支持板４０と略同一の大きさであり、上下端部には支持板４０の貫通小孔４３並びに摘み操作部材６の取り付け小孔２５と一致する固着具用の孔５８，５８が形成されている。また上下端部より折り曲げ部を介してやや外側にオフセットする中央部には前記駆動軸５６が貫通する円形孔５９が形成されている。
【００３８】
前記垂直板５７は、図４で示すように支持板４０の外壁面と捕捉板５５の内壁面との間に生じた間隙内に多少上下動可能に捕捉されている。
上記構成に於いて、摘み操作部材６の初期位置に関して図４及び図５を参照に説明する。前述したように、「初期位置」では摘み操作部材６の摘み部２０がケース本体５の案内窓５ａの下部に位置している。この場合施錠片４は突出し、外側引戸の受け金具に掛合している。
【００３９】
そこで、今仮に泥棒が引戸錠の鎌片４を後退させようとし、内側と外側の框の接合面に薄板状の硬いバーを差込み、内外の引戸の間に無理やりに隙間を作り、かつ、鉤状の針金部材を該隙間から差込み、摘み部２０に引っ掛け、本実施例では摘み操作部材６を上方に持ち上げようとしたとする。
【００４０】
しかして、摘み操作部材６にかかる上方方向の力により、ロック片３０の係合部３６が固定部材である蓋体８の係合溝１６の切欠端面に押され、その結果、ロック片３０が反時計方向に回転しようとしても、ロック片３０は摘み操作部材６と一緒に移動するように該摘み操作部材６と支持板４０の間に設けられ、かつ、ロック片３０の当り部３５がロック解除操作片４２のストッパー５０に当たっているので、これが障害となり、そのままでは該ロック片３０は回転することができない。
【００４１】
図１３はロック片３０が回転した場合に説明図である。この場合ロック片３０に対する障害を解消させるために、まずロック解除操作片４２の摘み用先端部４９を、例えば左手の一指し指で矢印Ａ方向へ押し下げる。フラット状先端部４９を押し下げると、ロック解除操作片４２は支軸４１を中心にバネ５２のバネ力に抗して反時計方向に回転する。そうすると、ロック解除操作片４２の後端部４８は浮き上がった状態になるので、ストッパー５０が邪魔にならなくなり、ロック片３０は反時計方向に回転可能な状態となる。
【００４２】
そこで、摘み用先端部４９を矢印Ａ方向へ押し続けたまま（一つのアクション操作を続けたまま）、摘み操作部材６の摘み部２０の下面に左手の親指を押し当てて該摘み操作部材６をそのまま矢印Ｂ方向へ持ち上げる（二つ目のアクション操作）。
【００４３】
そうすると、摘み操作部材６がケース本体５の嵌合凹所９内をスライド上昇するのに追従し、かつ、ロック片３０の係合部３６は蓋体８の係合溝１６の切欠端面などに押されるので、ロック片３０は短軸３１を中心に付勢バネ３２のバネ力に抗して反時計方向に回転する。その結果、鎌片４は連動部材の移動などを介して後退する。
【００４４】
【実施例】
実施例に於いて、摘み操作部材６の摘み部２０は、中空角柱状であるが、形態は特に問わない。例えば中空円柱でも良い。また、ロック片３０の係合部３６は、固定部材である蓋体８の係止部としての係合溝１６の切欠端面に係合するが、蓋体８が対向側壁１５を有しない場合には、ケース本体５の係止部としての切欠溝９ａの切欠端面に直接係止される。要はロック片３０の係合部３６は、固定部材５，８の係止部に係合すれば良い。
【００４５】
次に、この欄では第２実施例及び第３実施例について説明する。なお、これらの実施例の説明にあたって、第１実施例と同一又は同様の部分には、同一又は同様の符号を付し、重複する説明を省略する。
【００４６】
図１４乃至図１９に示す第２実施例に於いて、第１実施例と主に異なる点は、ロック解除操作片４２Ａと摘み操作部材６Ａの形状である。また、金属製の蓋体８Ａが合成樹脂製のケース本体５Ａに外嵌合している点である。
【００４７】
第１実施例で述べたようにロック解除操作片４２Ａと摘み操作部材６Ａの形状は、発明の実体を変更しない限り、任意に設計変更可能である。
【００４８】
すなわち、第１実施例では、一本の指で押圧されるロック解除操作片４２の先端部４９は、摘み操作部材６の角筒状突出先端部２０からフラット状に水平方向へと食み出ているのに対し、第２実施例の一本の指で押圧されるロック解除操作片４２Ａの先端部４９Ａは、例えば親指の先端部の外観が呈するように指先状に形成され、摘み操作部材６Ａの摘み部２０Ａに形成した摘み切欠部６１から上方方向に多少突出している。摘み切欠部６１は、突出先端部２０Ａの上壁部又は突出先端部２０Ａの下壁部のいずれでも良いが、この第２実施例では角筒状の突出先端部２０Ａの上壁部に形成されている。なお、前記摘み切欠部６１を前記突出先端部２０Ａの下壁部に形成した図面は特に図示しない。
【００４９】
また第１実施例の蓋体８は、図５で示すようにケース本体５の裏側の嵌合凹所９に内嵌合しているに対し、第２実施例のケース枠状に形成された蓋体８Ａは、ケース本体５Ａの裏側に形成した嵌合凹所９Ａや小さな切欠部９ａ（蓋体８Ａの任意形状の係合溝１６Ａと符合する部分）を有する壁部に外嵌合している。なお、この場合ロック片３０の係合部３６を内側のケース本体の切欠部９ａの端面に係止させることも出来るが、ケース本体５Ａは合成樹脂材で形成されているので、その切欠部９ａを蓋体８Ａの係合溝１６Ａよりもやや大きめにし、ロック片３０の係合部３６を金属製の蓋体８Ａの切欠端面１６ａに係止させている。
【００５０】
また前記ケース本体５の外壁面５ｄと、摘み操作部材６Ａの突出先端部２０Ａの外壁面２０ｄは略面一である。そして、ロック解除操作片４２Ａの先端部４９Ａの外壁面もケース本体５の外壁面５ｄから食み出ないように工夫されている。その他ロック解除操作片４２Ａの後端部４８Ａの形状、ストッバー５０Ａの形状、ロック解除操作片４２Ａ用のバネ５２Ａの形状やそのバネ端部の当り部分の相違、支持板４０Ａの中心孔４４Ａの大きさなど付随的な相違があるが、これらは本発明の実体（内容）に影響を与えるものではない。
【００５１】
上記構成に於いては、ロック片３０に対する障害を解消させるために、まずロック解除操作片４２Ａの親指状先端部４９Ａに、例えば左手の人差し指で掛けて押圧するようにする。そうすると、ロック解除操作片４２Ａは支軸を中心にバネ５２Ａのバネ力に抗して回転する。
【００５２】
その結果、ロック解除操作片４２Ａの後端部４８Ａは浮き上がった状態になるので、ストッパー５０Ａが邪魔にならなくなり、ロック片３０の係合部３６は蓋体８Ａの切欠端面１６ａに摺接して反時計方向に回転し始める。この点は、第１実施例と作用は同じである。
【００５３】
そこで、鉤状先端部４９Ａに左手の指を引掛けるようにして（一つのアクション操作を続けたまま）、摘み操作部材６Ａの摘み部２０Ａの下面に左手の親指を押し当てて該摘み操作部材６Ａをそのまま持ち上げる（二つ目のアクション操作）。
【００５４】
したがって、この点も第１実施例と作用は同様である。しかし、どちらかと言えば、鉤状先端部４９Ａに１本の指先を引っ掛けたままの状態で摘み部２０Ａの下面に親指を押し当てて該摘み操作部材６Ａをそのまま持ち上げる方が、操作性が良い。
【００５５】
次に図２０乃至図２５に示す第３実施例に於いて、第１実施例と主に異なる点は、摘み操作部材６Ｂの形状は、その基本的形態は変わらないが、摘み部２０Ｂの形状が異なっている。すなわち、摘み部２０Ｂの上壁に矩形状の嵌合口６４が形成されている反面、摘み部２０Ｂの前壁にはロック解除操作片４２Ｂの先端部用開口部が形成されていない。
【００５６】
そこで、ロック解除操作片４２Ｂの構成に工夫を加えている。すなわち、第３実施例のロック解除操作片４２Ｂは、摘み操作部材６Ｂの前記嵌合口６４に遊嵌合する操作片６６と、この操作片６６に係合するように摘み操作部材６Ｂの摘み部２０Ｂ内に支軸４１を介して軸支されたストッパー機能を有するブロック状のロック片用解除部６５とから成る。
【００５７】
しかして、前記操作片６６は、摘み操作部材６Ｂの摘み部２０Ｂの上壁或いは前記嵌合口６４から上方に突出する偏平状の頭部６６ａと、この頭部６６ａに段差状に連設する首部６６ｂと、この首部６６ｂを介して下方に連設し、かつ、内壁面が湾曲状に形成された係合壁部６６ｃとから成り、前記係合壁部６６ｃの中央部には、解除部６５の湾曲状外壁面の係合突起６７が係合する被係合部（小係合孔、小係合溝など）６８が形成されている。
【００５８】
一方、前記ブロック状解除部６５の上壁には、支軸４１に巻装されたバネ５２Ｂの一部が係合するバネ用切欠部６９が形成されているものの、後端部が開放している点、バネ５２Ｂを内装している点、下壁にストッパー５０Ｂを有する点などは第１実施例と同様である。
【００５９】
その他金属製蓋体８Ｂが合成樹脂製ケース本体５Ｂに外嵌合している点、前記ケース本体５Ｂの外壁面５ｄと、摘み操作部材６Ｂの突出先端部２０Ｂの外壁面２０ｄとは略面一である点が相違する。
【００６０】
ここで第２実施例の説明と重複するが、第３実施例のケース枠状に形成された蓋体８Ｂは、図２３で示すようにケース本体５Ｂの裏側に形成した嵌合凹所９Ｂや小さな切欠部９ａ（蓋体８Ｂの任意形状の係合溝１６Ｂと符合する部分）を有する壁部に外嵌合している。
【００６１】
なお、第３実施例も第２実施例と同様にケース本体５Ｂは合成樹脂材で形成されているので、ケース本体５Ｂの切欠部９ａを蓋体８Ｂの係合溝１６Ｂよりもやや大きめにし、ロック片３０の係合部３６を金属製蓋体８Ｂの切欠端面１６ａに係止させている。
【００６２】
上記構成に於いては、ロック片３０に対する障害を解消させるために、まずロック解除操作片４２Ｂの駆動片に相当する操作片６６の頭部６６ａを、例えば左手の人差し指で押圧する。
【００６３】
そうすると、ロック解除操作片４２Ｂの解除部６５は支軸４１を中心にバネ５２Ｂのバネ力に抗して回転する。その結果、ロック解除操作片４２Ｂの後端部に相当するロック片用解除部６５は浮き上がった状態になるので、ストッパー５０Ｂが邪魔にならなくなり、ロック片３０の係合部３６は蓋体８Ｂの切欠端面１６ａに摺接して反時計方向に回転し始める。この点は、第１実施例の作用は同じである。
【００６４】
そこで、操作片６６の頭部６６ａを左手の人差し指でプッシュしたまま（一つのアクション操作を続けたまま）、摘み操作部材６Ｂの摘み部２０Ｂの下面に左手の親指を押し当てて該摘み操作部材６Ｂをそのまま持ち上げる（二つ目のアクション操作）。
【００６５】
したがって、この点も第１実施例の作用と略同様である。しかし、どちらかと言えば、操作片４２Ｂを１本の指で押圧したままの状態で摘み部２０Ｂの下面に親指を押し当てて該摘み操作部材６Ｂをそのまま持ち上げる方が、操作性が良い。
【００６６】
【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作用・効果がある。
（１）摘み操作部材６を動かすためには、まず、ロック解除操作片４２のロック状態を解消させ、次いでロック解除操作片４２の解錠状態を維持しながら摘み操作部材６を移動させる必要がある。すなわち、本発明では、ロック解除操作片４２の摘み用先端部を操作して該ロック解除操作片４２を回転させ、その後端部がロック片３０の突起状当り部３５の障害に成らないように第１のアクション操作をしながら、次いで摘み操作部材６の摘み部２０を摘んですばやく該摘み操作部材６をスライドさせる第２のアクション操作を同時にする必要があるので、泥棒が外から戸の隙間、針金部材などを利用して摘み操作部材を操作しても、摘み操作部材はそう簡単には移動しない。したがって、錠前の鎌片を解錠状態にすることを確実に防止することができる。
（２）各部材を合理的に組み合わせ、前記（１）の効果を達成することができる。
（３）第２実施例又は第３実施例に於いて、片手の指二本（例えば左手の親指と人差し指）で摘み操作部材の突起状先端部を摘むようにするだけで、ロック解除操作片が作動（回動或いはスライド）し、そのまま突起状先端部を摘んだ状態で摘み操作部材をスライドさせることができる。したがって、非常に操作性が良い。
【図面の簡単な説明】
図１乃至図１３は本発明の第１実施例を示す各概略説明図。図１４乃至図１９は本発明の第２実施例を示す各概略説明図。図２０乃至図２５は本発明の第３実施例を示す各概略説明図。
【図１】第１実施例の全体の斜視図。
【図２】図１の２−２線拡大概略断面図。
【図３】蓋体の内壁面側から見た斜視図。
【図４】主要部の拡大概略縦断面説明図。
【図５】蓋体側から見た主要部の拡大概略断面説明図。
【図６】要部（ロック片など）の分解斜視図。
【図７】要部（摘み操作部材、ロック解除部材など）の分解斜視図。
【図８】要部（ロック解除部材、支持板など）の説明図。
【図９】要部（ロック解除部材の動き）の説明図。
【図１０】図７の１０−１０線断面図（摘み操作部材の断面）。
【図１１】摘み操作部材の背面図。
【図１２】他の部材の分解斜視図。
【図１３】ロックを解消させる場合の説明図。
【図１４】第２実施例の全体の斜視図。
【図１５】主要部の概略縦断面説明図。
【図１６】要部（ロック解除操作片、バネ）の説明図。
【図１７】蓋体側から見た主要部の概略断面説明図。
【図１８】要部（摘み操作部材、ロック解除部材など）の分解斜視図。
【図１９】要部（ロック解除部材、支持板など）の説明図。
【図２０】第３実施例の全体の斜視図。
【図２１】主要部の概略縦断面説明図。
【図２２】要部（ロック解除操作片の構成）の説明図。
【図２３】蓋体側から見た主要部の概略断面説明図。
【図２４】要部（摘み操作部材、ロック解除部材など）の分解斜視図。
【図２５】要部（摘み操作部材、ロック解除部材、支持板など）の説明図。
【符号の説明】
１…操作具、２…内側引戸、３…連動部材、４…施錠片、５，５Ａ，５Ｂ…ケース本体、５ａ…案内窓、５ｂ…固着具用取り付け孔、５ｃ…メネジ小孔、５ｄ…摘み部の外壁面、６，６Ａ，６Ｂ…摘み操作部材、７…ロック機構部材、８，８Ａ，８Ｂ…蓋体、９．０Ａ，９Ｂ…嵌合凹所、９ａ…切欠溝或いは切欠部、１０…嵌合溝、１１…嵌合板部、１２…貫通孔、１３…垂直長孔、１４…左対向側壁、１５…右対向側壁、１６…係合溝、１６ａ…切欠端面、２０，２０Ａ，２０Ｂ…摘み部、２１…スライド板部、２２…周壁部、２３…切欠、２４…取り付け凹所、２５…取り付け小孔、２６…収容凹所、２７…小軸穴、３０…ロック片、３１…短軸、３２…ロック片用付勢バネ、３４…軸孔、３５…当り部、３６…係合部、３７…バネ端受け部、４０，４０Ａ…ロック解除操作片用支持板、４０ａ…括れ部分、４１…ロック解除操作片用支軸、４２，４２Ａ，４２Ｂ…ロック解除操作片、４３…貫通小孔、４４，４４Ａ…中心孔、４５…軸受け部、４６…小軸孔、４８，４８Ａ…後端部、４９，４９Ａ…摘み用先端部、５０，５０Ａ，５０Ｂ…ストッパー、５１…軸孔、５２，５２Ａ，５２Ｂ…バネ、５５…捕捉板、５６…駆動軸、５７…垂直板、５８…孔、５９…円形孔、６１…摘み切欠部、６４…嵌合部、６５…ロック片用解除部、６６…操作片、６８…被係合部、６７…係合突起、６９…バネ用切欠部、Ａ，Ｂ…矢印。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an unlocking operation tool for unlocking a lock, and is particularly suitable for an unlocking operation tool for a lock attached to a door (opening / closing door, sliding door).
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a lock operating tool attached to an inner sliding door has a case-like attachment frame and a knob that is slidably mounted on the attachment frame in the vertical direction and protrudes from a vertical guide slot in the attachment frame. The knob operation plate is provided with a drive shaft for operating a locking piece (for example, sickle piece) of a sliding door lock provided on the inner sliding door in a locking or unlocking direction.
[0003]
In the above configuration, when the inner and outer sliding doors are locked via the sickle piece, when the thief tries to retract the sliding door sickle piece, for example, a hard bar is attached to the joint surface of the overlapping inner and outer hooks. And forcibly create a gap. Then, a wire member (one of thief's tools) having a hook-like tip portion is inserted from the gap, and tries to be hooked on the knob of the knob operation plate constituting the sliding door lock. In such a case, when the tip of the wire member is caught by the knob, the thief lifts the knob operation plate upward through the knob. Then, the sickle piece moves backward through the picking operation plate slide and the movement of the interlocking member.
[0004]
Therefore, the sliding door lock that unlocks the sickle piece by only one action operation of simply lifting or pushing the knob operation plate is highly likely to be illegally released without locally breaking the door glass. There is.
[0005]
[Problems to be solved by the invention]
The first object of the present invention is to reliably prevent a thief from operating the knob operating member from outside using a door gap, a wire member, etc., and bringing the sickle piece of the lock into an unlocked state. And In particular, in the present invention, when the door is locked, when a thief tries to retract the lock sickle piece from the outside in the unlocking direction, for example, a hard bar is attached to the joint surface of the overlapping inner and outer hooks. Inserting and forcibly creating a gap, and then inserting a wire member into the gap to prevent the act of rotating the lock sickle mounted on the door in the unlocking direction while operating the knob operation member. The purpose is to be able to.
[0006]
A second object is to achieve a first object by rationally combining the members. The third purpose is to release the lock in the second or third embodiment by simply picking the projecting tip of the operation member with two fingers of one hand (for example, the thumb and index finger of the left hand). The operation piece is actuated (rotated or slid), and the picking operation member can be slid in the state where the protruding tip is picked as it is.
[0007]
[Means for Solving the Problems]
The lock release unauthorized operation tool according to the present invention includes a case body 1 having a fitting recess 9 communicating with a guide window 5a, and a lid body fixed to the back side of the case body 1 and having a vertical elongated hole 13. 8 and the inner end portion of the locking piece drive shaft 56 penetrating the vertical elongated hole 13, and when the knob 20 protruding from the guide window 5 a is operated, it slides in the fitting recess 9. As described above, the knob operating member 6 installed between the case body 1 and the lid body 8 is provided integrally with the knob operating member 6 via the support plate 40, and the knob tip 49 is the knob. The unlocking operation piece 42 whose rear end 48 is pivotally supported so as to protrude from the portion 20 and the rear end 48 of the unlocking operation piece 42 at the initial position of the knob operation member 6 are projected to contact each other. Is pivotally supported by the knob operating member 6 so that the portion 35 contacts, and Consisting locking pieces 30 for the other of the projecting engagement portion 36 is engaged with an engaging portion of the lid or the case body as a fixing member.
[0008]
Further, the unauthorized unlocking prevention operation tool of the lock of the present invention is a case body having a fitting recess communicating with the guide window, a lid fixed to the back side of the case body so as to cover the fitting recess, A knob operating member that is mounted in the fitting recess so as to be movable up and down and has a knob portion protruding from the guide window, and a knob plate that is provided integrally with the knob operating member. And a lock releasing operation piece pivotally supported by the knob operation member and biased in the return direction by a spring, and an initial position of the knob operation member 6A. In this case, when the unlocking operation piece is operated by hooking a finger of one hand on the protruding tip protruding from the knob of the knob operation member, the lock piece provided on the knob operation member is free. Rotate to the state and remain as it is When the held while further sliding the knob operation member is in the other fingers pinching the knob portion of one hand, the locking piece characterized in that it is supported so as to rotate to the locked solved direction.
[0009]
In the above configuration, the unlocking operation piece 42A The tip of The appearance of the tip of the thumb Fingertip-shaped picking operation member 6A Knob part 20A The top or bottom knob notch formed on 61 It is characterized by slightly protruding from (See paragraph 0048) .
[0010]
Furthermore, the lock release unauthorized operation tool according to the present invention includes a case body having a fitting recess communicating with the guide window, and a lid fixed to the back side of the case body so as to cover the fitting recess. The knob operation member is provided in the fitting recess so as to be movable up and down and has a knob portion protruding from the guide window, and the knob operation through a support plate provided integrally with the knob operation member. A locking piece drive shaft supported by the member, and a lock release operation piece pivotally supported by the knob operation member and biased in a return direction by a spring, and the initial stage of the knob operation member 6A In the position, when the unlocking operation piece is pressed such that the protruding tip protruding from the knob of the knob operation member is pushed by a finger of one hand, the lock piece provided on the knob operation member is free. Rotate to the state and remain as it is Retention while further the locking piece and a knob operation member is slid in with other fingers of one hand pinching the knob portion is characterized by being pivotally supported so as to rotate to the locked solved direction.
[0011]
In the above configuration, the unlocking operation piece is pivotally supported in the knob so as to engage with the operation piece loosely fitted in the fitting port formed in the knob of the knob operation member. It is characterized by comprising a block-like lock piece releasing portion having a stopper function.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
1 to 13 are explanatory views showing an embodiment of the present invention. Reference numeral 1 denotes an operation tool for preventing unauthorized release of a lock (hereinafter simply referred to as “operation tool”). The operation tool 1 is fixedly attached to the inner sliding door 2, for example, as shown in FIG. Although the structure of the sliding door lock as an example of the lock is not particularly shown, it is generally provided in the tub of the inner sliding door 2 and is a locking piece (sickle piece) pivotally supported by the long plate-like interlocking member 3 as indicated by a virtual line. ) 4 and the locking piece 4 engages with a receiving metal fitting provided on the other party's outer sliding door. In the present embodiment, the sliding door lock itself is not a specific requirement of the invention, so a detailed description is omitted.
[0013]
When the constituent members of the operation tool 1 are roughly divided, a case main body 5 having an arbitrary shape and a protruding knob 20 that is slidably mounted in the case main body 5 and protrudes from the guide window 5a of the case main body 5 are provided. A knob operating member (commonly known as “thum turn”) 6 and a lock mechanism member that is indirectly provided on the knob operating member 6 via another member and locks the knob operating member 6 at an initial position. 7 and a lid body 8 fixed to the back side of the case body 5 so as to cover the knob operation member 6 and the lock mechanism member 7.
[0014]
Hereinafter, each component will be described in order. FIG. 1 is a perspective view of the operation tool 1. FIG. 2 is an enlarged schematic sectional view taken along line 2-2 of FIG. The case body 5 will be described with reference to FIGS. 1 and 2.
[0015]
The case body 5 is formed in a long frame shape with a synthetic resin material. Here, the description of the incidental shape of the case body 5 is omitted. 5a is a rectangular guide window formed in the longitudinal direction in the center of the case body 5; 5b is a fixing tool mounting hole formed in the upper and lower ends of the case body 5; 5c is the upper and lower ends of the case body 5; It is a female screw small hole formed in each back surface.
[0016]
In addition, although the outer wall surface of the both ends of the case main body 5 is formed in an inclined shape, the outer wall surface 5d may be vertical from the upper end to the lower end.
[0017]
Reference numeral 9 denotes a required fitting recess formed on the back side of the case body 5. The fitting recess 9 has a size for accommodating at least the knob operation member 6 and the lock mechanism member 7. Further, a relatively small cutout groove 9a (see the left side of FIG. 5) is formed on one inner surface of the fitting recess 9. Further, the central portion of the fitting recess 9 communicates with the guide window 5a.
[0018]
Reference numeral 10 denotes a fitting groove formed shallowly in a track shape from the upper end to the lower end on the back side of the case body 5, and a long plate-like lid body 8 is fitted into the fitting groove 10. The fitting groove 10 communicates with the fitting recess 9 except for a portion where the attachment hole 5b and the female screw small hole 5c are formed.
[0019]
Further, in this embodiment, a lid 8 having an arbitrary shape is fitted in a fitting groove 10 formed on the back side of the case body 5, but the lid 8 is formed in a case frame shape depending on the design. The main body 5 may be externally fitted.
[0020]
Here, the lid 8 will be described with reference to FIG. FIG. 3 is a perspective view of the lid body 8 as seen from the inner wall surface side of the fitting plate portion 11. A plurality of through holes 12 are formed in the upper and lower ends of the fitting plate portion 11 so as to respectively match the mounting holes and female screw small holes described above. Reference numeral 13 denotes a vertical elongated hole formed in the central portion of the fitting plate portion 11, and a horizontal rod-shaped drive shaft 56, which will be described later, protrudes through the vertical elongated hole 13 in a penetrating state. Reference numerals 14 and 15 denote opposing side walls formed by bending right and left ends of the fitting plate portion 11 at right angles. Here, on the basis of FIG. 3, reference numeral 14 is a left facing side wall, and 15 is a right facing side wall.
[0021]
A notch-like engagement groove 16 (visible on the left side in FIG. 5) is formed in a portion near the lower end of the right facing side wall 15. When the left and right opposing side walls 14, 15 are fitted in the fitting recess 9 of the case body 5, they face the left and right side wall surfaces of the fitting recess 9 in a surface contact state. At this time, the engagement groove 16 of the lid body 8 and the cutout groove 9a of the case body 5 coincide with the communication state (see FIG. 5). Note that the engagement groove 16 of the lid 8 is smaller than the cutout groove 9 a of the case body 5.
[0022]
4 and 5 are schematic cross-sectional explanatory views of main parts. As described above, the knob operating member 6 and the lock mechanism member 7 are incorporated in the fitting recess 9 of the case body 5, and the lid body 8 of the case body 5 covers the combination members 6 and 7. It is fixed to the back side via a fastener. In particular, FIG. 5 omits the fitting plate portion 11 of the lid and shows the left and right opposing side walls in order to show the internal structure when the lid 8 is fitted in the fitting recess 9 of the case body 5. 14 and 15 are shown in cross section. The main part of the present invention will be described below with reference to FIGS.
[0023]
First, the knob operation member 6 will be described. When the knob operating member 6 is slidably incorporated in the fitting recess 9 of the case body 5, the tip of the knob 20 protrudes from the guide window 5a as shown in FIG. In this embodiment, the knob 20 protrudes in a hollow prism shape from the center of the slide plate 21 that slides with the inner wall surface of the fitting recess 9. As shown in FIG. 10 which is a longitudinal section and FIG. 11 which is a rear view, the knob 20 is formed in a long case frame-shaped piece.
[0024]
That is, reference numeral 22 denotes an incomplete protruding wall-shaped peripheral side wall portion continuously provided on the slide plate portion 21, and the lower end portion of the peripheral side wall portion 22 is partially cut away as shown in FIG. 11. Reference numeral 24 denotes attachment recesses formed in steps on the upper and lower ends of the back surface, and attachment small holes 25 and 25 are further formed in these attachment recesses 24 and 24, respectively. The small mounting holes 25 and 25 may be small engaging projections depending on the design.
[0025]
Reference numeral 26 denotes a shallow receiving recess for a lock piece formed between the lower mounting recess 24 and the opening on the knob 20 side. The shallow receiving recess 26 communicates with the opening 20 a of the hollow knob 20. Reference numeral 27 denotes a small shaft hole formed on the inner wall surface of the slide plate portion 21 on the side of the notch 23.
[0026]
Next, the lock mechanism member 7 will be described with reference to FIGS. Here, the “lock mechanism member” means at least both the lock piece 30 that locks the movement of the knob operation member 6 and the unlock operation piece 42 that releases the lock state of the lock piece.
[0027]
First, the lock piece 30 that locks the upward movement of the knob operation member 6 will be described. Returning to FIG. 2 before describing the locking piece 30 shown in FIG. As shown in FIG. 2, when the knob portion 20 of the knob operation member 6 is positioned below the guide window 5a of the case body 5 (here, referred to as “initial position”), the locking piece 4 protrudes and is not shown. Engage with the outer sliding door bracket.
[0028]
Therefore, in the conventional sliding door lock, generally, when the knob portion 20 is picked and the knob operating member 6 is pushed upward, the locking piece 4 moves backward to the inner sliding door 2 via the interlocking member 3 of the sliding door lock. Therefore, in this embodiment, the lock piece 30 and the like are incorporated in the shallow receiving recess 26 on the back side of the knob operation member 6 so that the knob operation member 6 cannot be pushed up by one touch (one action).
[0029]
FIG. 6 shows the lock piece 30, the short shaft 31, and the lock piece biasing spring 32, respectively. The lock piece 30 is formed in an angle shape, and a shaft hole 34 for the short shaft 31 is formed in the center. With this shaft hole 34 as a reference, a portion extending upward is a thumb-shaped contact portion 35 that collides with a stopper 50 at the rear end portion of the unlocking operation piece 42. On the other hand, it is connected to the contact portion 35 and extends in the lateral direction, and is locked to the notch end surface of the notch groove 9a of the case body 5 as a fixing member or the end surface 16a of the engagement groove 16 of the lid 8. This is an index finger-like engaging portion 36.
[0030]
The engaging portion 36 has a spring end receiving portion 37 that receives one end portion of the lock piece biasing spring 32 wound around the short shaft 31. The short shaft 31 is fixedly provided horizontally through the small shaft hole 27 of the knob operation member 6 and the small shaft hole 46 of the support plate 40.
[0031]
Further, the other end of the biasing spring 32 is in pressure contact with the inner surface of the peripheral side wall 22 of the knob operating member 6 as shown in FIG. In FIG. 5, the lock piece 30 can be rotated counterclockwise around the short shaft 31 against the spring force of the biasing spring 32, but the rotation is the stopper of the unlocking operation piece 42 in the initial position. 50 is blocked.
[0032]
Next, the lock release operation piece support plate 40, the lock release operation piece support shaft 41, and the lock release operation piece 42 will be described with reference to FIGS. The slightly longer support plate 40 made of metal is fitted on the back side of the knob operation member 6 so as to be closed in the accommodation recess 26 of the knob operation member 6 except for a part of the notches 23 (see FIG. 11).
[0033]
Therefore, in this embodiment, it is formed in a long plate shape having a predetermined dimension. Reference numerals 43 denote through-holes formed in the upper and lower ends, respectively, and these through-holes 43 and 43 respectively correspond to the attachment holes 25 and 25 of the knob operation member 6 or the engaging small protrusions. Reference numeral 44 denotes a slightly elongated center hole, and the inner end portion of the rod-shaped drive shaft 56 is loosely fitted in the center hole 44.
[0034]
Thus, the central portion 40a of the support plate 40 is constricted, and a pair of left and right bearing portions 45, 45 project from the constricted portion 40a. A small shaft hole 46 for supporting the other end portion of the short shaft 31 is formed near the constricted portion 40a below the bearing portions 45, 45.
[0035]
The unlocking operation piece 42 pressed by one finger is pivotally supported on the support plate 40 via bearing portions 45 and 45 and a support shaft 41. The unlocking operation piece 42 includes a block-shaped rear end portion 48 that is freely rotatable in the left and right bearing portions 45, 45, a knob front end portion 49 that extends in a plate shape from the rear end portion 48, and the knob. And a protruding piece-like stopper 50 extending from the rear end portion 48 in an angular direction (for example, a direction of approximately 90 degrees) with respect to the front end portion 49 for use.
[0036]
A shaft hole 51 for the support shaft 41 is formed in the rear end portion 48. The rear end 48 is hollow with a notch. 4, reference numeral 52 is a spring for the unlocking operation piece 42 wound around the support shaft 41 as shown in FIG. 4. One end of the spring 52 is on the knob operating member 6, while the other end is on the unlocking operation piece. 42 is in pressure contact with the inner wall surface of the rear end portion 48. In FIG. 4, the unlocking operation piece 42 is always urged clockwise by the spring force of the spring 52 (so that the knob tip 49 is in a horizontal state).
[0037]
Finally, other members will be described with reference to FIG. Reference numeral 55 denotes a capture plate that is joined to the outer wall surface of the support plate 40 and confines the vertical plate 57 having the drive shaft 56 in a predetermined position. The catch plate 55 is substantially the same size as the support plate 40, and the upper and lower end portions thereof have fixing tool holes 58, which coincide with the through small holes 43 of the support plate 40 and the mounting small holes 25 of the knob operation member 6. 58 is formed. In addition, a circular hole 59 through which the drive shaft 56 passes is formed in a central portion that is slightly offset outward from the upper and lower end portions via a bent portion.
[0038]
As shown in FIG. 4, the vertical plate 57 is captured in a gap formed between the outer wall surface of the support plate 40 and the inner wall surface of the capturing plate 55 so as to be movable up and down somewhat.
In the above configuration, the initial position of the knob operation member 6 will be described with reference to FIGS. As described above, at the “initial position”, the knob portion 20 of the knob operation member 6 is positioned below the guide window 5 a of the case body 5. In this case, the locking piece 4 protrudes and is engaged with the receiving metal fitting of the outer sliding door.
[0039]
Therefore, a thief now tries to retreat the sickle piece 4 of the sliding door lock, inserts a thin plate-like hard bar into the joining surface of the inner and outer hooks, forcibly creates a gap between the inner and outer sliding doors, and In this embodiment, it is assumed that the knob operation member 6 is lifted upward by inserting a wire-shaped wire member from the gap and hooking it on the knob 20.
[0040]
Thus, the upward force applied to the knob operation member 6 pushes the engaging portion 36 of the lock piece 30 against the notch end surface of the engagement groove 16 of the lid body 8 as a fixing member. As a result, the lock piece 30 is Even if it is intended to rotate counterclockwise, the lock piece 30 is provided between the knob operation member 6 and the support plate 40 so as to move together with the knob operation member 6, and the contact portion 35 of the lock piece 30 is locked. Since it hits the stopper 50 of the release operation piece 42, this becomes an obstacle, and the lock piece 30 cannot be rotated as it is.
[0041]
FIG. 13 is an explanatory diagram when the lock piece 30 rotates. In this case, in order to eliminate the obstacle to the lock piece 30, first, the tip end portion 49 for picking the unlocking operation piece 42 is pushed down in the direction of the arrow A with the index finger of the left hand, for example. When the flat tip portion 49 is pushed down, the unlocking operation piece 42 rotates counterclockwise around the support shaft 41 against the spring force of the spring 52. Then, since the rear end portion 48 of the unlocking operation piece 42 is lifted, the stopper 50 does not get in the way, and the lock piece 30 is rotatable counterclockwise.
[0042]
Therefore, while holding the knob tip 49 in the direction of arrow A (while one action operation is continued), the thumb of the left hand is pressed against the lower surface of the knob part 20 of the knob operation member 6 to select the knob operation member 6. Is lifted in the direction of arrow B (second action operation).
[0043]
As a result, the knob operating member 6 follows the sliding rise in the fitting recess 9 of the case body 5, and the engaging portion 36 of the lock piece 30 is formed on the notch end surface of the engaging groove 16 of the lid body 8. Since it is pushed, the lock piece 30 rotates counterclockwise around the short shaft 31 against the spring force of the biasing spring 32. As a result, the sickle piece 4 moves backward through the movement of the interlocking member.
[0044]
【Example】
In the embodiment, the knob portion 20 of the knob operation member 6 has a hollow prism shape, but the form is not particularly limited. For example, a hollow cylinder may be used. Further, the engaging portion 36 of the lock piece 30 engages with a notch end surface of the engaging groove 16 as a locking portion of the lid body 8 that is a fixing member, but the lid body 8 does not have the opposing side wall 15. Is directly locked to the cut-out end face of the cut-out groove 9a as the lock portion of the case body 5. In short, the engaging portion 36 of the lock piece 30 may be engaged with the engaging portion of the fixing members 5 and 8.
[0045]
Next, in this section, the second embodiment and the third embodiment will be described. In the description of these embodiments, the same or similar parts as those in the first embodiment are denoted by the same or similar reference numerals, and redundant description is omitted.
[0046]
In the second embodiment shown in FIGS. 14 to 19, the main difference from the first embodiment is the shapes of the unlocking operation piece 42A and the knob operation member 6A. Further, the metal lid 8A is externally fitted to the synthetic resin case body 5A.
[0047]
As described in the first embodiment, the design of the unlocking operation piece 42A and the knob operation member 6A can be arbitrarily changed unless the substance of the invention is changed.
[0048]
That is, in the first embodiment, the distal end portion 49 of the unlocking operation piece 42 that is pressed by one finger protrudes horizontally from the square tubular projecting distal end portion 20 of the knob operation member 6 in the horizontal direction. On the other hand, the distal end portion 49A of the unlocking operation piece 42A pressed by one finger of the second embodiment is formed in a fingertip shape so that the appearance of the distal end portion of the thumb is exhibited, for example, and a knob operation member It slightly protrudes upward from a knob notch 61 formed in the knob 20A of 6A. The knob notch 61 is an upper wall portion of the protruding tip portion 20A or Of the protruding tip 20A Any of the lower wall portions may be used, but in the second embodiment, the lower wall portion is formed on the upper wall portion of the protruding end portion 20A having a rectangular tube shape. The drawing in which the knob notch 61 is formed in the lower wall portion of the protruding tip 20A is not particularly shown. .
[0049]
Further, the lid body 8 of the first embodiment is formed in the case frame shape of the second embodiment, while being internally fitted in the fitting recess 9 on the back side of the case body 5 as shown in FIG. The lid 8A is externally fitted to a wall portion having a fitting recess 9A formed on the back side of the case main body 5A and a small notch 9a (a portion coinciding with the engagement groove 16A of an arbitrary shape of the lid 8A). Yes. In this case, the engaging portion 36 of the lock piece 30 can be locked to the end surface of the cutout portion 9a of the inner case body. Synthetic resin material The notch 9a is made slightly larger than the engaging groove 16A of the lid 8A, and the engaging portion 36 of the lock piece 30 is engaged with the notch end surface 16a of the metal lid 8A. Yes.
[0050]
The outer wall surface 5d of the case body 5 and the outer wall surface 20d of the projecting tip portion 20A of the knob operation member 6A are substantially flush with each other. The outer wall surface of the distal end portion 49A of the unlocking operation piece 42A is devised so as not to protrude from the outer wall surface 5d of the case body 5. In addition, the shape of the rear end 48A of the unlocking operation piece 42A, the shape of the stover 50A, the shape of the spring 52A for the unlocking operation piece 42A and the contact portion of the spring end, the size of the center hole 44A of the support plate 40A However, these do not affect the substance (content) of the present invention.
[0051]
In the above configuration, in order to eliminate the obstacle to the lock piece 30, first, the thumb-shaped tip portion 49 </ b> A of the unlocking operation piece 42 </ b> A is hung and pressed with, for example, the left index finger. Then, the unlocking operation piece 42A rotates against the spring force of the spring 52A around the support shaft.
[0052]
As a result, the rear end portion 48A of the unlocking operation piece 42A is in a lifted state, so that the stopper 50A does not get in the way, and the engaging portion 36 of the lock piece 30 slides against the notch end surface 16a of the lid body 8A. Start rotating clockwise. This is the same as the first embodiment.
[0053]
Therefore, the left hand thumb is pressed against the lower surface of the knob 20A of the knob operation member 6A so that the finger of the left hand is hooked on the hook-shaped tip 49A (while one action operation is continued). Lift 6A as it is (second action operation).
[0054]
Therefore, this point is the same as the first embodiment. However, if anything, it is better to lift the knob operation member 6A as it is by pressing the thumb against the lower surface of the knob 20A while one fingertip is hooked on the hook-shaped tip 49A. .
[0055]
Next, in the third embodiment shown in FIGS. 20 to 25, the main difference from the first embodiment is that the shape of the knob operation member 6B is the same as the shape of the knob portion 20B. Is different. That is, while the rectangular fitting port 64 is formed on the upper wall of the knob 20B, the front opening of the unlocking operation piece 42B is not formed on the front wall of the knob 20B.
[0056]
Therefore, a device is added to the configuration of the unlocking operation piece 42B. That is, the unlocking operation piece 42B of the third embodiment includes an operation piece 66 that is loosely fitted to the fitting port 64 of the knob operation member 6B, and a knob portion of the knob operation member 6B that is engaged with the operation piece 66. 20B, and a block-like lock piece releasing portion 65 having a stopper function that is pivotally supported via a support shaft 41.
[0057]
The operation piece 66 includes a flat head 66a that protrudes upward from the upper wall of the knob 20B of the knob operation member 6B or the fitting port 64, and a neck that is provided stepwise on the head 66a. 66b, and an engaging wall portion 66c that is connected downward via the neck portion 66b and has an inner wall surface formed in a curved shape, and a release portion 65 is provided at the center of the engaging wall portion 66c. An engaged portion (small engagement hole, small engagement groove, etc.) 68 to be engaged with the engagement protrusion 67 of the curved outer wall surface is formed.
[0058]
On the other hand, a spring notch 69 is formed on the upper wall of the block release portion 65 to engage with a part of the spring 52B wound around the support shaft 41, but the rear end is opened. This is the same as the first embodiment in that it has a spring 52B and a stopper 50B on the lower wall.
[0059]
In addition, the point that the metal lid 8B is externally fitted to the synthetic resin case main body 5B, the outer wall surface 5d of the case main body 5B, and the outer wall surface 20d of the protruding tip 20B of the knob operation member 6B are substantially flush with each other. Is different.
[0060]
Here, although overlapping with the description of the second embodiment, the lid body 8B formed in the case frame shape of the third embodiment has a fitting recess 9B formed on the back side of the case body 5B as shown in FIG. It is externally fitted to a wall portion having a small notch portion 9a (a portion that coincides with the engagement groove 16B having an arbitrary shape on the lid 8B).
[0061]
In addition, since the case body 5B is made of a synthetic resin material in the third embodiment as well as the second embodiment, the notch portion 9a of the case body 5B is made slightly larger than the engagement groove 16B of the lid body 8B. The engaging portion 36 of the lock piece 30 is locked to the notch end surface 16a of the metal lid 8B.
[0062]
In the above configuration, in order to eliminate the obstacle to the lock piece 30, first, the head 66a of the operation piece 66 corresponding to the drive piece of the unlocking operation piece 42B is pressed with, for example, the left index finger.
[0063]
Then, the unlocking portion 65 of the unlocking operation piece 42B rotates around the support shaft 41 against the spring force of the spring 52B. As a result, the lock piece release portion 65 corresponding to the rear end portion of the lock release operation piece 42B is in a lifted state, so that the stopper 50B does not get in the way, and the engaging portion 36 of the lock piece 30 can be connected to the lid 8B. The slidable contact with the notch end surface 16a starts to rotate counterclockwise. In this respect, the operation of the first embodiment is the same.
[0064]
Therefore, while pushing the head 66a of the operation piece 66 with the index finger of the left hand (while continuing one action operation), the left thumb is pressed against the lower surface of the knob portion 20B of the knob operation member 6B. Lift 6B as it is (second action operation).
[0065]
Therefore, this point is also substantially the same as the operation of the first embodiment. However, if anything, it is better to press the thumb on the lower surface of the knob 20B and lift the knob operation member 6B as it is while the operation piece 42B is pressed with one finger.
[0066]
【The invention's effect】
As is clear from the above description, the present invention has the following actions and effects.
(1) In order to move the knob operation member 6, it is first necessary to release the lock state of the unlocking operation piece 42 and then move the knob operation member 6 while maintaining the unlocked operation piece 42. is there. That is, in the present invention, the tip end portion for picking the unlocking operation piece 42 is operated to rotate the unlocking operation piece 42 so that the rear end portion does not become an obstacle to the protruding contact portion 35 of the lock piece 30. While performing the first action operation, it is then necessary to simultaneously perform the second action operation of picking the knob portion 20 of the knob operation member 6 and quickly sliding the knob operation member 6, so that the thief has a gap between the door and the outside. Even if the knob operation member is operated using a wire member or the like, the knob operation member does not move so easily. Therefore, it is possible to reliably prevent the sickle piece before the lock from being unlocked.
(2) Each member can be rationally combined to achieve the effect (1).
(3) In the second embodiment or the third embodiment, the unlocking operation piece can be obtained simply by picking the protruding tip of the picking operation member with two fingers of one hand (for example, the thumb and index finger of the left hand). The picking operation member can be slid while operating (turning or sliding) and holding the protruding tip as it is. Therefore, the operability is very good.
[Brief description of the drawings]
1 to 13 are schematic explanatory views showing a first embodiment of the present invention. 14 to 19 are schematic explanatory views showing a second embodiment of the present invention. 20 to 25 are schematic explanatory views showing a third embodiment of the present invention.
FIG. 1 is an overall perspective view of a first embodiment.
FIG. 2 is an enlarged schematic cross-sectional view taken along line 2-2 of FIG.
FIG. 3 is a perspective view seen from the inner wall surface side of the lid.
FIG. 4 is an enlarged schematic vertical cross-sectional explanatory view of a main part.
FIG. 5 is an enlarged schematic cross-sectional explanatory view of a main part viewed from the lid side.
FIG. 6 is an exploded perspective view of a main part (such as a lock piece).
FIG. 7 is an exploded perspective view of a main part (a knob operation member, a lock release member, etc.).
FIG. 8 is an explanatory diagram of a main part (lock release member, support plate, etc.).
FIG. 9 is an explanatory diagram of a main part (movement of a lock release member).
10 is a cross-sectional view taken along line 10-10 in FIG. 7 (cross section of a knob operation member).
FIG. 11 is a rear view of a knob operation member.
FIG. 12 is an exploded perspective view of another member.
FIG. 13 is an explanatory diagram for releasing the lock.
FIG. 14 is an overall perspective view of a second embodiment.
FIG. 15 is a schematic longitudinal cross-sectional explanatory view of a main part.
FIG. 16 is an explanatory diagram of a main part (unlock operation piece, spring).
FIG. 17 is a schematic cross-sectional explanatory view of a main part viewed from the lid side.
FIG. 18 is an exploded perspective view of a main part (a knob operation member, a lock release member, etc.).
FIG. 19 is an explanatory diagram of a main part (lock release member, support plate, etc.).
FIG. 20 is an overall perspective view of a third embodiment.
FIG. 21 is a schematic longitudinal cross-sectional explanatory view of a main part.
FIG. 22 is an explanatory diagram of a main part (configuration of an unlocking operation piece).
FIG. 23 is a schematic cross-sectional explanatory view of a main part viewed from the lid side.
FIG. 24 is an exploded perspective view of a main part (a knob operation member, a lock release member, etc.).
FIG. 25 is an explanatory diagram of a main part (a knob operation member, a lock release member, a support plate, and the like).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Operation tool, 2 ... Inner sliding door, 3 ... Interlocking member, 4 ... Locking piece, 5, 5A, 5B ... Case main body, 5a ... Guide window, 5b ... Fixing tool attachment hole, 5c ... Female screw small hole, 5d ... Outer wall surface of knob, 6, 6A, 6B ... knob operating member, 7 ... lock mechanism member, 8, 8A, 8B ... lid, 9.0A, 9B ... fitting recess, 9a ... notch groove or notch, DESCRIPTION OF SYMBOLS 10 ... Fitting groove, 11 ... Fitting plate part, 12 ... Through-hole, 13 ... Vertical long hole, 14 ... Left opposing side wall, 15 ... Right opposing side wall, 16 ... Engaging groove, 16a ... Notch end surface, 20, 20A, 20B ... Picking part, 21 ... Slide plate part, 22 ... Surrounding wall part, 23 ... Notch, 24 ... Mounting recess, 25 ... Mounting hole, 26 ... Housing recess, 27 ... Small shaft hole, 30 ... Lock piece, 31 ... Short shaft, 32 ... Biasing spring for lock piece, 34 ... Shaft hole, 35 ... Contact part, 36 ... Engagement part, 37 ... Spring end receiver 40, 40A ... unlocking operation piece support plate, 40a ... constricted part, 41 ... unlocking operation piece spindle, 42, 42A, 42B ... unlocking operation piece, 43 ... through hole, 44, 44A ... Center hole, 45 ... bearing portion, 46 ... small shaft hole, 48, 48A ... rear end portion, 49, 49A ... tip for picking, 50, 50A, 50B ... stopper, 51 ... shaft hole, 52, 52A, 52B ... Spring, 55 ... capture plate, 56 ... drive shaft, 57 ... vertical plate, 58 ... hole, 59 ... circular hole, 61 ... knob notch, 64 ... fitting part, 65 ... release part for lock piece, 66 ... operation piece 68 ... engaged portion, 67 ... engaging protrusion, 69 ... notch for spring, A, B ... arrow.

Claims

A case body 5 having a fitting recess 9 communicating with the guide window 5a, a lid body 8 fixed to the back side of the case body 5 and having a vertical long hole 13, and a lock passing through the vertical long hole 13 Between the case main body 5 and the lid 8 so as to slide in the fitting recess 9 when the knob 20 protruding from the guide window 5a is operated while supporting the inner end of the single drive shaft 56. The knob operation member 6 installed in the knob, and the knob 48 is provided integrally with the knob operation member 6 via the support plate 40, and the rear end portion 48 is formed so that the knob tip 49 protrudes from the knob 20. At the initial position of the unlocking operation piece 42 supported by the shaft and the knob operation member 6, the knob operation member 6 is arranged so that the projecting contact portion 35 abuts against the rear end portion 48 of the lock release operation piece 42. And the other protruding engagement portion 36 is fixed to the fixing member. Unauthorized release preventing operation member of the lock consisting of the locking piece 30 for being engaged with an engaging portion of the lid of Te.

In claim 1, at the initial position of the knob operation member 6, the lock piece 30 is always engaged with the notch end surface 16 a of the engagement groove 16 formed on the side wall of the lid body 8. An operation tool for preventing unauthorized release of a lock, which is biased by a biasing spring 32 provided on the short shaft 31 of the lock.

2. The projecting wall-shaped peripheral side wall portion according to claim 1, wherein the knob operating member 6 is connected to the slide plate portion 21 and is formed with a partial notch 23 from which the engaging portion 36 of the lock piece 30 protrudes. 22 and a long case frame-like piece having a receiving recess 26 for storing the lock piece 30, and a long plate-like support plate 40 is fixed so as to close the receiving recess 26. An operation tool for preventing unauthorized release of a lock.

A case body 5 having a fitting recess 9 communicating with the guide window 5a, a lid body 8 fixed to the back side of the case body 5 and having a vertical long hole 13, and a lock passing through the vertical long hole 13 The case main body 1 and the case main body 56 are supported so as to slide in the fitting recess 9 when the inner end portion of the single drive shaft 56 is supported via the support plate 40 and the knob 20 protruding from the guide window 5a is operated. A knob operating member 6 provided between the lid 8 and the knob operating member 6 is provided on the knob operating member 6 via the support plate 40, and the knob tip 49 protrudes from the knob 20. The unlocking operation piece 42 on which the end portion 48 is pivotally supported, and the initial position of the knob operation member 6, the projecting contact portion 35 abuts on the rear end portion 48 of the unlocking operation piece 42. The other protrusion-like engaging portion 3 that is pivotally supported by the knob operating member 6 There unauthorized release preventing operation member of the lock consisting of the locking piece 30 for being engaged with an engaging portion of the case body as a fixing member.

A case main body having a fitting recess communicating with the guide window, a lid fixed to the back side of the case body so as to cover the fitting recess, and being fitted in the fitting recess so as to be movable up and down, And a knob operating member having a knob protruding from the guide window, a drive shaft for the locking piece supported by the knob operating member via a support plate provided integrally with the knob operating member, and a knob operation. The unlocking operation piece is pivotally supported by the member and biased in the return direction by a spring, and at the initial position of the knob operation member 6A, the unlocking operation piece is a knob operation. When operated by hooking a finger of one hand on the protruding tip protruding from the knob part of the member, the lock piece provided on the knob operation member rotates so as to be free and maintains this state. While using the other finger of one hand Sliding the knob operation member picking section, said locking piece unauthorized release preventing operation device of the lock, characterized in that it is axially supported so as to rotate to the locked solved direction.

A case main body having a fitting recess communicating with the guide window, a lid fixed to the back side of the case body so as to cover the fitting recess, and being fitted in the fitting recess so as to be movable up and down, And a knob operating member having a knob protruding from the guide window, a drive shaft for the locking piece supported by the knob operating member via a support plate provided integrally with the knob operating member, and a knob operation. The unlocking operation piece is pivotally supported by the member and biased in the return direction by a spring, and at the initial position of the knob operation member 6A, the unlocking operation piece is a knob operation. When the protruding tip protruding from the knob of the member is pressed so as to be pushed by a finger of one hand, the lock piece provided on the knob operation member rotates so as to be free, and this state is maintained. While further picking the knob with the other finger of one hand Unauthorized release preventing operation tool of padlock the lock piece and sliding the knob operating member, characterized in that it is axially supported so as to rotate to the locked solved direction picking.

7. The unlocking operation piece according to claim 6, wherein the operation piece is loosely fitted to a fitting port formed in the knob portion of the knob operation member, and is pivotally supported in the knob portion so as to be engaged with the operation piece. An unlocking prevention tool for a lock, characterized by comprising a block-like lock piece release portion having a stopper function.