JP3635510B2

JP3635510B2 - Locking device for open sliding door

Info

Publication number: JP3635510B2
Application number: JP04949796A
Authority: JP
Inventors: 青木栄祥
Original assignee: 美和ロック株式会社
Priority date: 1996-02-13
Filing date: 1996-02-13
Publication date: 2005-04-06
Anticipated expiration: 2016-02-13
Also published as: JPH09217539A

Description

【０００１】
【発明の属する技術分野】
本発明は開放状態引戸用ロック装置に関する。本発明は、例えば特別養護老人ホームや病院などの非常口用引戸に適する。
【０００２】
【従来の技術】
従来、特別養護老人ホームや病院などの非常口用引戸は、火災、緊急時等の非常時以外の時は施錠状態になっている場合が多い。非常口はあくまでも非常用であり、非常口を完全に開放しておくことは、特に惚け老人や病人に対して管理上問題があると共に、外部からの侵入（泥棒）も有り得るからである。
【０００３】
しかしながら、非常口と言っても、管理上の観点から常に完全に閉じていなければならないと言う訳ではなく、管理上の問題点を解消できるのであれば、換気の目的から、人が通ることができない開放空間を設定した状態で引戸をロックあるいはストッパーできればより望ましい。
【０００４】
【発明が解決しようとする課題】
しかしながら、従来、特別養護老人ホームや病院などの非常口用引戸に於いて、風を入れたいが人の出入りを防止する開放空間を設定することができる開放状態引戸用ロック装置が存在していない。
【０００５】
そこで、請求項１記載の発明は、上記のような開放空間を設定することができる開放状態引戸用ロック装置を提供することである。そして、本発明の具体的な発明の課題は、戸枠の縦枠側に設けられた錠本体に引戸の縦框側に設けられたガイド部材のガードアームがロックされたままの状態で引戸を手で開くだけで所望の開放空間が確実に得ることができ、一方、停電などの非常時には前記ガードアームを錠本体の係止カムから解放させ、ガードアームの係合端部を自動的に錠ケースから落下させることである。
【０００６】
また請求項２及び請求項３記載の発明は、駆動源の作動杆が伸張した時にロック部材を容易かつ確実に係止カムに係止させることを目的とする。
【０００７】
また請求項４記載の発明は、駆動源の通電時に於いて、ガイド部材のガードアームを錠本体の係止カムに容易に係合させることができる反面、錠本体が解錠の時にはガードアームが自然に係止カムから外れることである。
【０００８】
また請求項５記載の発明は、意匠上のデザイン性を考慮すると同時に、ガイド部材のガードアームを錠本体の係止カムに係合させる時に所望の位置で位置決め停止させることである。
【０００９】
また請求項６記載の発明は、惚け老人などに引戸を自由に開けられたくない場合に、引戸のガイド部材側でも仮のロックをしておくことができることである。
【００１０】
さらに、請求項７記載の発明は、ガイド部材のガードアームをロックしたままの状態で開放空間を任意に調整したうえで、引戸のガイド部材側でも仮のロックをしておくことができることである。
【００１１】
【課題を解決するための手段】
本発明の開放状態引戸用ロック装置は、引戸側に設けられたガイド部材１０と、戸枠側に設けられた錠本体３０とを備え、前記ガイド部材は、引戸側に固定的に設けられた水平のアームレール１１と、このアームレール１１の外表面と重なり合い、かつ、一端部に該アームレールに案内されながらスライドするスライド係合駒１８を有すると共に、他端部の係合端部１２ａが錠本体３０と係脱するガードアーム１２とから成り、一方、前記錠本体は、錠ケース３１に軸支され、かつ、ガードアーム１２を係止する係合部４７を有する係止カム４３と、同じく錠ケース３１に軸支され、かつ、前記係止カムに形成された第２係止部４９に係合すると共にバネ部材６０で一方向に付勢されたロック部材５５と、錠ケース３１に設けられ、かつ、通電時作動杆４１の突出端部が前記ロック部材５５を押付ける駆動源４０とから成り、通電時はガイド部材１０のガードアーム１２が錠本体３０の係止カム４３にロックされた状態で引戸１の縦框４と戸枠の縦枠６の間に開放空間１４を設定でき、一方、非通電時には前記作動杆４１の収縮に伴い、ロック部材５５が係止カム４３から外れ、ガードアーム１２が自重で係止カム４３から落下することを特徴とする。
【００１２】
ここで、「所望の開放空間」とは、通常の平均的な２〜３歳児が通り抜けることができない引戸と戸枠との隙間を言う。
【００１３】
【発明の実施の形態】
以下、図面に示す本発明の実施の形態を、引戸の枠（縦框、横框、中框）に取り付けたガード部材（アームレール及びガードアーム）１０と、このガイド部材のガードアーム１２を係止ロック及び係止解除する戸枠の外表面側に取り付けた錠本体３０との係脱関係で説明する。
【００１４】
まず図１乃至図１３に基づき本発明の第１実施例について説明する。１は、例えば非常口の引戸である。この引戸１には、普通一般の引戸や引戸式の窓が含まれる。周知のように、引戸１は金属性の引戸枠２と、この引戸枠２内に取り付けられたガラス３とから成るタイプが普及している。そして、例えば引戸１の中央部には縦框４と交差する帯状の中框５が設けられている。一方、６は戸枠の縦枠で、この戸枠の縦枠６は引戸の縦框４と対向する。
【００１５】
次に１０は引戸枠２の適当な箇所、本実施例では図１で示すように引戸枠２の中央部に固定的に設けられ、かつ、錠本体３０と係脱するガード部材である。このガード部材１０は縦框４の中央部から中框５にかけて水平状態に固設されたアームレール１１と、このアームレール１１の外表面と略重なり合い、かつ、該アームレールに案内されながらスライドすると共に、錠本体３０と係脱するガードアーム１２とから成る。
【００１６】
しかして、前記アームレール１１は、長溝状のレール空間部１３の長さ分だけガードアーム１２をスライドさせ、図１で示すように所望の開放空間１４を設定することができる。この開放空間１４は、前述したように風を入れたいが人の出入りを防止することができる常識的な隙間である。アームレール１１は、本実施例では固定ベース部１５の左右に形成された固着具用貫通孔１６を介して引戸枠２に固定される。
【００１７】
１７は図７で示すように固定ベース部１５にトラック状に周設された係止枠部で、この係止枠部１７の右端部１７ａはガードアーム１２に対してストッパーの機能し、またその左端部１７ｂは固定ベース部に適宜に固定される。一方、ガードアーム１２は、一端部にアームレールのレール空間部１３内を水平移動するスライド係合駒１８を有すると共に、他端部には錠本体３０と係脱する係合杆１９が突設されている。この係合杆１９は錠本体３０から係止を解除（解錠）されると、アームレール１１に係止されるスライド係合駒１８を支点に自重で回転落下する。なお、前記係合杆１９の突出端部にはフランジ部２０が形成されている。
【００１８】
３０は引戸１の開閉の有無を問わず、普段はガイド部材１０のガードアーム１２の係合杆１９を施錠（ロック）し、非常時にはその係合杆１９を解錠（係止解除）する錠本体である。そこで、図３乃至図１０を参照しながら錠本体３０の構成について説明する。
【００１９】
まず３１は戸枠の縦枠６の中央部に縦方向に固定された錠ケースで、この錠ケース３１は上方収納部３１ａと、この上方収納部３１ａに連設する下方収納部３１ｂから成る。上方収納部３１ａは下方収納部３１ｂと連通しているが、下方収納部３１ｂよりも前方に突出し、ガードアーム１２の係合杆１９が位置する係合端部１２ａと当接する底壁３２を有する。この底壁３２の奥行きは、ガードアーム１２の横幅と略同一に設定されている。したがって、ガードアーム１２の係合端部１２ａが下方収納部３１ｂの前壁３３と対向すると、上方収納部３１ａの前壁３４とガードアーム１２の係合端部１２ａの外壁面は略同一垂直面に位置する。また下方収納部３１ｂは、本実施例では底壁が開口３５していると共に、前記前壁３３には縦方向に案内切欠部３６が形成されている。この案内切欠部３６は一側壁寄りの部位に位置し、前記開口３５と連通する下端から上部へと形成されている。
【００２０】
次に４０は錠ケース３１の上方収納部３１ａ内に設けられた駆動源の一例としてのソレノイドである。このソレノイド４０は上方収納部３１ａの後壁３７に縦方向に適宜固定されている。したがって、作動杆４１は上下方向に伸縮動するが、本実施例では非通電時には収縮し、一方、通電時は伸張する構造である。
【００２１】
４２は作動杆４１の突出端部に固定的に設けられた当接片である。この当接片４２は作動杆４１と交差する方向に突出している。当接片４２は、作動杆４１が収縮する際は受け板としての機能を、一方、作動杆４１が伸張する際は押し圧片としの機能を発揮する。
【００２２】
次に４３は錠ケース３１の下方収納部３１ｂ内に設けられた係止手段の一例としての係止カムである。この係止カム４３は、下方収納部３１ｂの中央部寄りの部位に横設軸架された第１の枢軸４４に枢支されている。この係止カム４３は下方収納部３１ｂ内で所望する角度（ガードアーム１２の係合杆１９と係脱する角度）回動可能であれば円形、多角形など形状は特に問わない。本実施例の係止カム４３の形状は、人の手を内側方向から見た場合に親指乃至人差し指に似た部分がある。
【００２３】
しかして、４５は係止カム４３の下端部に形成された親指状の第１係止部で、この第１係止部４５は、図３を基準にすると、錠ケース３１の案内切欠部３６に臨んでいる。４６はこの第１係止部に対して湾曲状に延びる人差し指状の当接部で、この当接部４６は、図３を基準にすると、前記案内切欠部３６に対して斜め方向に交差している。この当接部４６と第１係止部４５がガードアーム１２の係合端部１２ａと係脱するガードアーム用係合部４７を形成している。
【００２４】
また４８は手根部に相当する上端部位に形成された弧状部で、この弧状部４８と人差し指状の当接部４６の間の中手骨に相当する上端部寄りの部位には、第２係止部４９が形成されている。この第２係止部４９は第１の枢軸４４方向に形成された切欠凹所である。
【００２５】
次に５５はソレノイドの作動杆４１と係止カム４３との間に介在するロック部材である。このロック部材５５は、基部が下方収納部３１ｂの上部右端部に横設軸架された第２の枢軸５６に枢支され、かつ、作動杆４１の当接片４２と圧接する揺動板５７と、この揺動板５７の自由端部に一対の枢支アーム５８を介して回転自在に設けられた係合ローラー５９とから成る。ロック部材５５は、第２の枢軸５６に巻装されたバネ部材６０により、常時作動杆４１の方向に付勢されている。また係合ローラー５９は係合カム４３の第２係止部４９と係脱する。
【００２６】
上記構成に於て、まず図３がソレノイド４０が非通電時の状態を示す。この非通電時の状態は、停電時はもちろんであるが、例えば火災など非常時の場合に遠隔制御装置の制御によりなされる。この時ソレノイド４０の作動杆４１は図示しない復帰バネにより収縮している。作動杆４１が収縮すると、ロック部材５５は常時バネ部材６０により上方方向に付勢されているので、第２の枢軸５６を支点に回転して上方に浮き上がる。そして、ロック部材５５の係合ローラー５９が係止カム４３の第２係止部４９から外れると、係止カム４３は第１の枢軸４４を支点に反時計方向に自重で回転する。その結果、ガードアーム１２の係合杆１９が係止カム４３の係合部４７から開放され、ガードアーム１２の係合端部１２ａは、アームレール１１に係止されるスライド係合駒１８を支点に自重で回転落下し、かつ、ガードアーム１２は垂れ下がる。そこで、引戸１を完全に開放することができる。
【００２７】
次に図９は係止カム４３にガードアーム１２の係合杆１９を掛ける前の非通電時の状態からソレノイド４０に通電した場合を示す。この場合作動杆４１は、矢印でし示すように不完全の状態で伸張する。そして、作動杆４１の不完全伸張に伴い、その当接片４２により、ロック部材５５は係止ローラー５９が係止カム４３の弧状部４８に当たるまで下方へと押し下げられる。しかし、この状態では係止カム４３はまだ回転しない。そこで、例えば引戸１を完全に閉じ、ガードアーム１２の係合杆１９を矢印で示すように錠ケース３１の案内切欠部３６へと下方から差し入れ、係止カム４３にガードアーム１２の係合杆１９を掛けるようにする。
【００２８】
次に図１０はガードアーム１２の係合杆１９を係止カム４３に掛け、かつ、ロック部材５５に係止カム４３がロックされた場合を示す。この場合ソレノイド４０は通電状態のままである。ガードアーム１２の係合杆１９を錠ケース３１の案内切欠部３６へと下方から差し入れると、係合杆１９は係止カム４３の当接部４６に当たる。そこで、ガードアーム１２の係合端部１２ａが下方収納部３１ｂの前壁３３と対向する位置あるいは係合端部１２ａが上方収納部３１ａの底壁３２に当接するまで係合杆１９を移動させると、係止カム４３は第１の枢軸４４を支点に時計方向へ回転する。ロック部材５５の係合ローラー５９はこの係止カム４３の回転に伴い弧状部４８の弧状面をソレノイド４０の作動杆４１に押されながらその場で転動する。そして、係止カム４３の第２係止部４９が係合ローラー５９と対向する位置へと移行してくると、該係合ローラー５９は第２係止部４９に落ち込む。この時ソレノイド４０の作動杆４１は完全に伸張すると共に、ロック部材５５はバネ部材６０のバネ力に抗して反時計方向へ回転する。そこで、ガイド部材１０が錠本体３０に施錠された状態で引戸１を開くと、ガードアーム１２がアームレール１１をスライドし、図１で示すように引戸１と戸枠の縦枠６との間に開放空間１４が生ずる。
【００２９】
【実施例】
まず第１実施例に於いては、駆動源４０の一例としてソレノイドを示し、その作動杆４１は非通電時には収縮し、一方、通電時は伸張する構造である旨を説明したが、図１４で示すようにソレノイドの上端部に作動杆４１Ａを確実に復帰させるために、復帰スプリング２５を作動杆４１Ａの突出上端部に巻装しても良い。
【００３０】
次にこの実施例の欄では、発明の実施の形態の欄で述べた第１実施例の主要部に他の構成要件を加味した実施例を列挙する。なお、これらの実施例の説明に於いては、図面に発明の実施の形態で説明した符号をそのまま付し、あるいは同様の符号を付し、重複する説明を省略する。
【００３１】
図１５乃至図１９の第２実施例は、ガイド部材１０Ａの構成に特徴がある。ガイド部材１０Ａは、アームレール１１Ａと、ガードアーム１２Ａとから成る点は第１実施例と同様である。しかし、この実施例は、引戸を開く前にガードアーム１２Ａに設けられた操作部材６５を操作しない限り、自由に引戸を開き、開放空間を設定できないことを発明の目的している。
【００３２】
しかして、６６はアームレール１１Ａの固定ベース部１５Ａの適宜箇所に形成された係合孔、係合溝等の係合部である。この係合部６６は、操作片の位置を考慮し、本実施例ではアームレール１１Ａの一端部に設けられている。
【００３３】
前記操作部材６５は、ガードアーム１２Ａの係合杆１９Ａを有しない一端部に軸６７を介して回動可能に枢支されたシーソ式操作片６８と、この操作片６８の先端部６８ａに枢支ピン６９を介して取付けられ、かつ、アームレール１１Ａのレール空間部１３Ａを移動するスライド係合駒１８Ａを貫通した状態で係合部６６と係脱する係合棒７０とから成る。
【００３４】
上記構成に於いては、シーソ式操作片６８の後端部６８ｂを押すと係合棒７０は係合部６６から外れ、一方、その先端部６８ａを押すと係合棒７０は係合部６６と係合する。したがって、引戸を自由に開けられたくない場合はシーソ式操作片６８の先端部６８ａを押し、ガイド部材１０Ａ側でも仮のロックをしておけば良い。
【００３５】
図２０乃至図２３の第３実施例は、ガイド部材１０Ａの構成をそっくり含み、シーソ式操作片６８用付勢バネ７１を設けた点に特徴がある。この付勢バネ７１は、シーソ式操作片６８の後端部６８ｂの内側に適宜設けられたスプリングであり、操作片６８を係合棒７０が係合部６６に係合する方向に常時付勢する。
【００３６】
上記構成に於いては、引戸を閉じた際にスライド係合駒１８Ａが係合部６６に位置すると、付勢バネ７１に係合方向に付勢されている係合棒７０は係合部６６に自動的に係合し、その結果、ガードアーム１２Ａがアームレール１１Ａとロック状態に成る。なお、この実施例の説明に於いては、ガイド部材１０Ａの構成をそっくり利用しているので、便宜上第２実施例の符号をそのまま用いる。
【００３７】
図２４乃至図２６の第４実施例は、ガイド部材１０Ｂの構成に特徴がある。ガイド部材１０Ｂは、アームレール１１Ｂと、ガードアーム１２Ｂとから成る点は第１実施例と同様である。しかし、この実施例は、引戸を開く前にガードアーム１２Ｂに設けられた操作部材６５Ｂを操作しない限り、自由に引戸を開き、開放空間を設定できないのみならず、前記開放空間を任意に調整することができることを発明の目的している。したがって、この第４実施例は第２実施例の改良例である。
【００３８】
まず６６Ｂはアームレール１１Ｂの固定ベース部１５Ｂの適宜箇所に形成された係合孔、係合溝等の係合部である。この係合部６６Ｂは、操作片の位置を考慮し、本実施例ではアームレール１１Ｂの一端部に設けられている。
【００３９】
前記操作部材６５Ｂは、ガードアーム１２Ｂの係合杆１９Ｂを有しない一端部に軸６７Ｂを介して回動可能に枢支されたシーソ式操作片６８Ｂと、この操作片６８Ｂの先端部６８ａに枢支ピン６９Ｂを介して取付けられ、かつ、アームレール１１Ｂのレール空間部１３Ｂを移動するスライド係合駒１８Ｂを貫通した状態で係合部６６Ｂと係脱する係合棒７０Ｂとから成る。なお、操作片６８Ｂの先端部６８ａとその後端部６８ｂの符号は便宜上第２実施例の符号をそのまま用いる。
【００４０】
次に７２はアームレール１１Ｂの固定ベース部１５Ｂに所定間隔を設けて形成された複数個の調整孔である。この調整孔７２は、本実施例では多少長孔状であり、アームレール１１Ｂの長手方向に合計６形成されている。
【００４１】
上記構成に於いては、シーソ式操作片６８Ｂの後端部６８ｂを押すと係合棒７０Ｂは係合部６６Ｂから外れ、一方、その先端部６８ａを押すと係合棒７０Ｂは係合部６６Ｂと係合する。したがって、引戸を自由に開けられたくない場合はシーソ式操作片６８Ｂの先端部６８ａを押し、ガイド部材１０Ｂ側でも仮のロックをしておけば良い点は第２実施例と同様である。
【００４２】
また開放空間を任意に設定したい場合は、操作部材６５Ｂの係合棒７０Ｂを係合部６６Ｂから係合解除させた状態にしながら引戸を所望の位置まで開く。そして、シーソ式操作片６８Ｂの先端部６８ａを押し、前記係合棒７０Ｂを係合部６６Ｂに係合させる。
【００４３】
図２７及び図２８の第５実施例は、ガイド部材１０Ｂの構成をそっくり含み、シーソ式操作片６８Ｂ用付勢バネ７１Ｂを設けた点に特徴がある。この付勢バネ７１Ｂは、シーソ式操作片６８Ｂの後端部６８ｂの内側に適宜設けられたスプリングであり、操作片６８Ｂを係合棒７０Ｂが係合部６６Ｂに係合する方向に常時付勢する。
【００４４】
上記構成に於いては、引戸を閉じた際にスライド係合駒１８Ｂが係合部６６Ｂに位置すると、勢バネ７１Ｂに係合方向に付勢されている係合棒７０Ｂは係合部６６Ｂに自動的に係合し、その結果、ガードアーム１２Ｂがアームレール１１Ｂとロック状態に成る。また開放空間を任意に設定したい場合は、操作部材６５Ｂの係合棒７０Ｂを係合部６６Ｂから係合解除させた状態にしながら引戸を所望の位置まで開き、シーソ式操作片６８Ｂの後端部６８ｂから指を離すと、付勢バネ７１Ｂのバネ力により操作片６８Ｂを係合棒７０Ｂは自動的に係合部６６Ｂに係合する。なお、この実施例の説明に於いては、ガイド部材１０Ｂの構成をそっくり利用しているので、便宜上第４実施例の符号をそのまま用いる。
【００４５】
【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）特別養護老人ホームや病院の引戸窓あるいは非常口の引戸に使用し、戸枠の縦枠側に設けられた錠本体に引戸の縦框側に設けられたガイド部材のガードアームがロックされたままの状態で引戸を手で開くだけで所望の開放空間が確実に得ることができ、一方、停電などの非常時には前記ガードアームを錠本体の係止カムから解放させ、ガードアームの係合端部を自動的に錠ケースから落下させることができる。したがって、管理上の問題点を解消できると同時に、換気の目的を達成することができる。
（２）請求項２及び請求項３記載の発明は、駆動源の作動杆が伸張した時にロック部材を容易かつ確実に係止カムに係止させることができる。
（３）請求項４記載の発明は、駆動源の通電時に於いて、ガイド部材のガードアームを錠本体の係止カムに容易に係合させることができる反面、錠本体が解錠の時にはガードアームが自然に係止カムから外れる。
（４）請求項５記載の発明は、ガイド部材のガードアームを錠本体の係止カムに係合させる時に所望の位置で位置決め停止させることができる。
（５）請求項６記載の発明は、惚け老人などに引戸を自由に開けられたくない場合に、引戸のガイド部材側でも仮のロックをしておくことができることである。
（６）請求項７記載の発明は、ガイド部材のガードアームをロックしたままの状態で開放空間を任意に調整したうえで、引戸のガイド部材側でも仮のロックをしておくことができる。
【図面の簡単な説明】
図１ないし図１９は本発明の実施の形態を説明するための第１実施例に基づく各説明図。その他の図面は主要部又は要部の他の実施例を示す各説明図である。
【図１】第１実施例を用いた実施の形態を説明するための説明図（開放空間を設定した場合）。
【図２】第１実施例を用いた実施の形態を説明するための説明図（引戸を閉めた場合）。
【図３】第１実施例の錠本体の概略的な斜視図。
【図４】図３の４−４線に基づく概略断面説明図。
【図５】第１実施例の主要部の説明図。
【図６】第１実施例の主要部の説明図。
【図７】第１実施例の主要部の説明図。
【図８】第１実施例の主要部の説明図。
【図９】停電開放後のソレノイド通電状態（ガードアームの係合前）。
【図１０】図９に於いて、錠本体がガードアームをロックした状態。
【図１１】ガイド部材の概略説明図。
【図１２】図１１の１２−１２線拡大断面図。
【図１３】ガイド部材のアームレールの説明図。
【図１４】第１実施例の要部（駆動源）の他の例を示す説明図。
【図１５】主要部の第２実施例（ガイド部材１０Ａ）の正面図。
【図１６】第２実施例の底面側から見た概略説明図（操作部材が係合）。
【図１７】第２実施例の底面側から見た概略説明図（操作部材が係合解除）。
【図１８】第２実施例の要部（アームレール１１Ａ）の説明図。
【図１９】第２実施例の要部（操作部材６５）の説明図。
【図２０】第３実施例（ガイド部材１０Ａ）の底面側から見た概略説明図。
【図２１】図２０の２２−２２線拡大断面図。
【図２２】第３実施例の操作部材が係合解除した概略説明図。
【図２３】第３実施例の要部（アームレール１１Ａ）の説明図。
【図２４】第４実施例（ガイド部材１０Ｂ）の底面側から見た概略説明図。
【図２５】第４実施例の操作部材が係合解除した概略説明図。
【図２６】第４実施例の要部（アームレール１１Ｂ）の説明図。
【図２７】第５実施例（ガイド部材１０Ｂ）の底面側から見た概略説明図。
【図２８】第５実施例の操作部材が係合解除した概略説明図。
【符号の説明】
１…引戸、２…引戸枠、４…縦框、６…戸枠の縦枠、１０、１０Ａ、１０Ｂ…ガード部材、１１、１１Ａ、１１Ｂ…アームレール、１２、１２Ａ、１２Ｂ…ガードアーム、１３、１３Ａ、１３Ｂ…レール空間部、１４…開放空間、１５、１５Ａ、１５Ｂ…固定ベース部、１８、１８Ａ、１８Ｂ…スライド係合駒、１９、１９Ａ、１９Ｂ…係合杆、３０…錠本体、３１…錠ケース、３１ａ…上方収納部、３１ｂ…下方収納部、３２…底壁、３３、３４…前壁、３６…案内切欠部、４０…ソレノイド、４１…作動杆、４２…当接片、４３…係止カム、４４…第１の枢軸、４５…第１係止部、４６…当接部、４７…係合部、４８…弧状部、４９…第２係止部、５５…ロック部材、５９…係合ローラー、５６…第２枢支部、６０…バネ部材、６６、６６Ｂ…係合部、６５、６５Ｂ…操作部材、６８、６８Ｂ…操作片、７０、７０Ｂ…係合棒、７１、７１Ｂ…付勢バネ、７２…調整孔。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device for an open state sliding door. The present invention is suitable for emergency exit sliding doors such as nursing homes and hospitals.
[0002]
[Prior art]
Conventionally, emergency exit sliding doors such as nursing homes and hospitals are often locked in cases other than emergency such as fires and emergencies. This is because the emergency exit is for emergency use, and opening the emergency exit completely has a management problem especially for the elderly and sick, and there may be an intrusion (thief) from the outside.
[0003]
However, even if it is an emergency exit, it does not mean that it must always be completely closed from a management point of view, and if the management problem can be solved, a person cannot pass for the purpose of ventilation. It would be more desirable if the sliding door could be locked or stopped with the open space set.
[0004]
[Problems to be solved by the invention]
However, conventionally, in emergency exit sliding doors such as nursing homes and hospitals, there is no open sliding door lock device that can set an open space to prevent people from entering and leaving the wind.
[0005]
In view of this, an invention according to claim 1 is to provide an open state sliding door locking device capable of setting the open space as described above. And the subject of the concrete invention of the present invention is that the sliding door is mounted in a state where the guard arm of the guide member provided on the vertical side of the sliding door is locked to the lock body provided on the vertical frame side of the door frame. The desired open space can be reliably obtained simply by opening it by hand. On the other hand, in the event of a power failure or the like, the guard arm is released from the locking cam of the lock body, and the engagement end of the guard arm is automatically locked. It is to drop from the case.
[0006]
Further, the present invention has an object to easily and surely lock the locking member with the locking cam when the operating rod of the drive source is extended.
[0007]
In the invention according to claim 4, when the drive source is energized, the guard arm of the guide member can be easily engaged with the locking cam of the lock body, while the guard arm is unlocked when the lock body is unlocked. It is natural to come off the locking cam.
[0008]
The invention according to claim 5 is to stop positioning at a desired position when engaging the guard arm of the guide member with the locking cam of the lock body while considering the design of the design.
[0009]
According to the sixth aspect of the present invention, when it is not desired to open the sliding door freely by an elderly person or the like, a temporary lock can be provided even on the guide member side of the sliding door.
[0010]
Furthermore, the invention described in claim 7 is that the open space can be adjusted arbitrarily while the guard arm of the guide member is locked, and the temporary lock can be provided on the guide member side of the sliding door. .
[0011]
[Means for Solving the Problems]
The open state sliding door locking device of the present invention includes a guide member 10 provided on the sliding door side and a lock body 30 provided on the door frame side, and the guide member is fixedly provided on the sliding door side. The horizontal arm rail 11 has a slide engagement piece 18 that overlaps with the outer surface of the arm rail 11 and slides while being guided by the arm rail at one end, and an engagement end 12a at the other end. The lock body 30 and the guard arm 12 that engages and disengages, while the lock body is pivotally supported by the lock case 31 and has an engagement cam 47 that engages the guard arm 12; Similarly, a lock member 55 that is pivotally supported by the lock case 31 and engages with a second locking portion 49 formed on the locking cam and is biased in one direction by a spring member 60, Provided and The projecting end of the hour operating rod 41 is composed of a drive source 40 that presses the lock member 55. When energized, the guard arm 12 of the guide member 10 is locked to the locking cam 43 of the lock body 30 and the sliding door 1 is locked. The open space 14 can be set between the vertical rod 4 and the vertical frame 6 of the door frame. On the other hand, when the energizing rod 41 contracts when the power is not energized, the lock member 55 is detached from the locking cam 43 and the guard arm 12 is It falls from the locking cam 43 by its own weight.
[0012]
Here, the “desired open space” refers to a gap between a sliding door and a door frame that a normal average 2-3 year-old child cannot pass through.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
In the following, the embodiment of the present invention shown in the drawings is related to a guard member (arm rail and guard arm) 10 attached to a sliding door frame (vertical rod, horizontal rod, middle rod) and a guard arm 12 of this guide member. A description will be given of the locking and disengagement with the lock body 30 attached to the outer surface of the door frame to be locked and unlocked.
[0014]
First, a first embodiment of the present invention will be described with reference to FIGS. 1 is an emergency exit sliding door, for example. The sliding door 1 includes an ordinary general sliding door and a sliding door type window. As is well known, the type of sliding door 1 is made up of a metallic sliding door frame 2 and a glass 3 mounted in the sliding door frame 2. Then, for example, a belt-shaped intermediate collar 5 that intersects the vertical fence 4 is provided at the center of the sliding door 1. On the other hand, 6 is a vertical frame of the door frame, and the vertical frame 6 of this door frame faces the vertical fence 4 of the sliding door.
[0015]
Next, reference numeral 10 denotes a guard member which is fixedly provided at an appropriate portion of the sliding door frame 2, in this embodiment, as shown in FIG. The guard member 10 has an arm rail 11 fixed in a horizontal state from the center portion of the vertical rod 4 to the middle rod 5 and substantially overlaps with the outer surface of the arm rail 11 and slides while being guided by the arm rail. In addition, it comprises a lock body 30 and a guard arm 12 that engages and disengages.
[0016]
Thus, the arm rail 11 can set the desired open space 14 as shown in FIG. 1 by sliding the guard arm 12 by the length of the long groove-like rail space 13. As described above, the open space 14 is a common-sense gap that allows the wind to enter but prevents people from entering and exiting. In this embodiment, the arm rail 11 is fixed to the sliding door frame 2 through the fixing tool through holes 16 formed on the left and right sides of the fixed base portion 15.
[0017]
Reference numeral 17 denotes a locking frame portion that is provided in a track shape around the fixed base portion 15 as shown in FIG. 7. The right end portion 17a of the locking frame portion 17 functions as a stopper for the guard arm 12, and The left end portion 17b is appropriately fixed to the fixed base portion. On the other hand, the guard arm 12 has a slide engagement piece 18 that horizontally moves in the rail space 13 of the arm rail at one end, and an engagement rod 19 that engages and disengages from the lock body 30 at the other end. Has been. When the engagement rod 19 is unlocked (unlocked) from the lock body 30, the engagement rod 19 rotates and falls by its own weight with the slide engagement piece 18 locked to the arm rail 11 as a fulcrum. A flange portion 20 is formed on the protruding end portion of the engagement rod 19.
[0018]
30 is a lock that normally locks (locks) the engagement rod 19 of the guard arm 12 of the guide member 10 and unlocks (unlocks) the engagement rod 19 in an emergency, regardless of whether the sliding door 1 is opened or closed. It is the main body. Therefore, the configuration of the lock body 30 will be described with reference to FIGS. 3 to 10.
[0019]
First, reference numeral 31 denotes a lock case fixed in the vertical direction at the center of the vertical frame 6 of the door frame. The lock case 31 includes an upper storage portion 31a and a lower storage portion 31b connected to the upper storage portion 31a. The upper storage portion 31a communicates with the lower storage portion 31b, but has a bottom wall 32 that projects forward from the lower storage portion 31b and contacts the engagement end portion 12a where the engagement rod 19 of the guard arm 12 is located. . The depth of the bottom wall 32 is set to be substantially the same as the lateral width of the guard arm 12. Therefore, when the engagement end portion 12a of the guard arm 12 faces the front wall 33 of the lower storage portion 31b, the front wall 34 of the upper storage portion 31a and the outer wall surface of the engagement end portion 12a of the guard arm 12 are substantially the same vertical surface. Located in. The lower storage portion 31b has an opening 35 in the bottom wall in this embodiment, and a guide cutout portion 36 is formed in the front wall 33 in the vertical direction. The guide notch 36 is located at a position near one side wall, and is formed from the lower end communicating with the opening 35 to the upper part.
[0020]
Next, reference numeral 40 denotes a solenoid as an example of a drive source provided in the upper storage portion 31 a of the lock case 31. The solenoid 40 is appropriately fixed in the vertical direction to the rear wall 37 of the upper storage portion 31a. Therefore, the operating rod 41 expands and contracts in the vertical direction. In this embodiment, the operating rod 41 contracts when not energized, while it expands when energized.
[0021]
Reference numeral 42 denotes a contact piece fixedly provided at the protruding end of the operating rod 41. The contact piece 42 protrudes in a direction intersecting with the operating rod 41. The abutment piece 42 functions as a receiving plate when the operating rod 41 contracts, while it functions as a pressing piece when the operating rod 41 extends.
[0022]
Next, reference numeral 43 denotes a locking cam as an example of locking means provided in the lower storage portion 31 b of the lock case 31. The locking cam 43 is pivotally supported by a first pivot 44 that is horizontally mounted on a portion near the center of the lower storage portion 31b. The locking cam 43 may have any shape such as a circle or a polygon as long as it can be rotated within a desired angle (an angle to be engaged with or disengaged from the engagement rod 19 of the guard arm 12) in the lower storage portion 31b. The shape of the locking cam 43 of this embodiment has a portion similar to the thumb or index finger when a human hand is viewed from the inside.
[0023]
Thus, 45 is a thumb-shaped first locking portion formed at the lower end of the locking cam 43. The first locking portion 45 is a guide notch 36 of the lock case 31 with reference to FIG. It faces. 46 is an index finger-like contact portion extending in a curved shape with respect to the first locking portion, and this contact portion 46 intersects the guide notch 36 in an oblique direction with reference to FIG. ing. The contact portion 46 and the first locking portion 45 form a guard arm engagement portion 47 that engages with and disengages from the engagement end portion 12a of the guard arm 12.
[0024]
Reference numeral 48 denotes an arcuate portion formed at the upper end portion corresponding to the carpal portion, and the second engagement portion is located near the upper end portion corresponding to the metacarpal bone between the arcuate portion 48 and the index finger-like contact portion 46. A stop 49 is formed. The second locking portion 49 is a notch recess formed in the direction of the first pivot 44.
[0025]
Reference numeral 55 denotes a lock member interposed between the solenoid operating rod 41 and the locking cam 43. The lock member 55 is pivotally supported by a second pivot 56 having a base that is horizontally installed on the upper right end of the lower storage portion 31b, and a rocking plate 57 that is in pressure contact with the contact piece 42 of the operating rod 41. And an engaging roller 59 provided rotatably at a free end of the swing plate 57 via a pair of pivot arms 58. The lock member 55 is always urged in the direction of the operating rod 41 by a spring member 60 wound around the second pivot 56. The engagement roller 59 is engaged with and disengaged from the second locking portion 49 of the engagement cam 43.
[0026]
First, FIG. 3 shows a state in which the solenoid 40 is not energized. This non-energized state is, of course, not only during a power failure, but is controlled by the remote control device in the case of an emergency such as a fire. At this time, the operating rod 41 of the solenoid 40 is contracted by a return spring (not shown). When the operating rod 41 contracts, the lock member 55 is constantly urged upward by the spring member 60, so that it rotates about the second pivot 56 and lifts upward. When the engaging roller 59 of the locking member 55 is disengaged from the second locking portion 49 of the locking cam 43, the locking cam 43 rotates by its own weight in the counterclockwise direction with the first pivot 44 as a fulcrum. As a result, the engagement rod 19 of the guard arm 12 is released from the engagement portion 47 of the locking cam 43, and the engagement end portion 12 a of the guard arm 12 moves the slide engagement piece 18 locked to the arm rail 11. The fulcrum rotates and falls under its own weight, and the guard arm 12 hangs down. Therefore, the sliding door 1 can be completely opened.
[0027]
Next, FIG. 9 shows a case where the solenoid 40 is energized from the non-energized state before the engagement cam 19 of the guard arm 12 is engaged with the locking cam 43. In this case, the operating rod 41 extends in an incomplete state as indicated by an arrow. Then, with the incomplete extension of the operating rod 41, the lock member 55 is pushed down by the contact piece 42 until the locking roller 59 hits the arcuate portion 48 of the locking cam 43. However, the locking cam 43 has not yet rotated in this state. Therefore, for example, the sliding door 1 is completely closed, and the engagement rod 19 of the guard arm 12 is inserted from below into the guide notch 36 of the lock case 31 as indicated by the arrow, and the engagement arm 43 of the guard arm 12 is inserted into the locking cam 43. 19 is multiplied.
[0028]
Next, FIG. 10 shows a case where the engagement rod 19 of the guard arm 12 is hooked on the locking cam 43 and the locking cam 43 is locked to the lock member 55. In this case, the solenoid 40 remains energized. When the engagement rod 19 of the guard arm 12 is inserted into the guide cutout portion 36 of the lock case 31 from below, the engagement rod 19 hits the contact portion 46 of the locking cam 43. Therefore, the engagement rod 19 is moved until the engagement end portion 12a of the guard arm 12 faces the front wall 33 of the lower storage portion 31b or until the engagement end portion 12a contacts the bottom wall 32 of the upper storage portion 31a. Then, the locking cam 43 rotates clockwise with the first pivot 44 as a fulcrum. The engagement roller 59 of the lock member 55 rolls on the spot while the arcuate surface of the arcuate portion 48 is pushed by the operating rod 41 of the solenoid 40 as the locking cam 43 rotates. When the second locking portion 49 of the locking cam 43 moves to a position facing the engagement roller 59, the engagement roller 59 falls into the second locking portion 49. At this time, the operating rod 41 of the solenoid 40 is completely extended, and the lock member 55 rotates counterclockwise against the spring force of the spring member 60. Therefore, when the sliding door 1 is opened while the guide member 10 is locked to the lock body 30, the guard arm 12 slides on the arm rail 11, and as shown in FIG. 1, between the sliding door 1 and the vertical frame 6 of the door frame. An open space 14 is created in
[0029]
【Example】
First, in the first embodiment, a solenoid is shown as an example of the drive source 40, and it has been explained that the operating rod 41 contracts when not energized, while it expands when energized. As shown, the return spring 25 may be wound around the protruding upper end of the operating rod 41A in order to reliably return the operating rod 41A to the upper end of the solenoid.
[0030]
Next, in the column of this example, examples in which other structural requirements are added to the main part of the first example described in the column of the embodiment of the invention are listed. In the description of these examples, the reference numerals described in the embodiments of the present invention are attached to the drawings as they are, or the same reference numerals are given, and the redundant description is omitted.
[0031]
The second embodiment of FIGS. 15 to 19 is characterized by the structure of the guide member 10A. The guide member 10A is the same as the first embodiment in that the guide member 10A includes an arm rail 11A and a guard arm 12A. However, this embodiment has the object of the invention that the sliding door cannot be opened freely and the open space cannot be set unless the operating member 65 provided on the guard arm 12A is operated before the sliding door is opened.
[0032]
Reference numeral 66 denotes an engaging portion such as an engaging hole or an engaging groove formed at an appropriate position of the fixed base portion 15A of the arm rail 11A. In consideration of the position of the operation piece, the engaging portion 66 is provided at one end of the arm rail 11A in the present embodiment.
[0033]
The operating member 65 is pivoted to a seesaw type operating piece 68 that is pivotally supported via a shaft 67 at one end portion of the guard arm 12A that does not have the engagement rod 19A, and a distal end portion 68a of the operating piece 68. It comprises an engagement rod 70 that is attached via a support pin 69 and that engages and disengages with the engagement portion 66 in a state of passing through a slide engagement piece 18A that moves through the rail space portion 13A of the arm rail 11A.
[0034]
In the above configuration, when the rear end portion 68b of the seesaw type operating piece 68 is pushed, the engaging rod 70 is disengaged from the engaging portion 66, while when the leading end portion 68a is pushed, the engaging rod 70 is moved to the engaging portion 66. Engage with. Therefore, when it is not desired to open the sliding door freely, the tip end portion 68a of the seesaw type operation piece 68 may be pushed to temporarily lock the guide member 10A.
[0035]
The third embodiment shown in FIGS. 20 to 23 includes the configuration of the guide member 10A, and is characterized in that an urging spring 71 for a seesaw type operating piece 68 is provided. The urging spring 71 is a spring provided as appropriate inside the rear end portion 68 b of the seesaw type operation piece 68, and constantly urges the operation piece 68 in a direction in which the engagement rod 70 engages the engagement portion 66. To do.
[0036]
In the above configuration, when the sliding engagement piece 18A is positioned at the engagement portion 66 when the sliding door is closed, the engagement rod 70 biased in the engagement direction by the biasing spring 71 is engaged with the engagement portion 66. As a result, the guard arm 12A is locked with the arm rail 11A. In the description of this embodiment, since the configuration of the guide member 10A is completely used, the reference numerals of the second embodiment are used as they are for the sake of convenience.
[0037]
The fourth embodiment shown in FIGS. 24 to 26 is characterized by the structure of the guide member 10B. The guide member 10B is the same as the first embodiment in that it includes an arm rail 11B and a guard arm 12B. However, in this embodiment, unless the operation member 65B provided on the guard arm 12B is operated before the sliding door is opened, the sliding door cannot be freely opened to set the open space, and the open space is arbitrarily adjusted. It is an object of the invention to be able to. Therefore, the fourth embodiment is an improved example of the second embodiment.
[0038]
First, reference numeral 66B denotes an engaging portion such as an engaging hole or an engaging groove formed at an appropriate position of the fixed base portion 15B of the arm rail 11B. In consideration of the position of the operation piece, the engagement portion 66B is provided at one end of the arm rail 11B in this embodiment.
[0039]
The operating member 65B is pivoted to a seesaw type operating piece 68B pivotally supported at one end portion of the guard arm 12B that does not have the engagement rod 19B via a shaft 67B, and a distal end portion 68a of the operating piece 68B. It comprises an engaging rod 70B that is attached via a support pin 69B and engages with and disengages from the engaging portion 66B in a state of passing through the slide engaging piece 18B that moves through the rail space portion 13B of the arm rail 11B. In addition, the code | symbol of 2nd Example is used for the code | symbol of the front-end | tip part 68a and the rear-end part 68b of the operation piece 68B as it is for convenience.
[0040]
Next, 72 is a plurality of adjustment holes formed at predetermined intervals in the fixed base portion 15B of the arm rail 11B. The adjustment holes 72 are somewhat elongated holes in this embodiment, and a total of six adjustment holes 72 are formed in the longitudinal direction of the arm rail 11B.
[0041]
In the above configuration, when the rear end portion 68b of the seesaw type operating piece 68B is pushed, the engaging rod 70B is disengaged from the engaging portion 66B, while when the leading end portion 68a is pushed, the engaging rod 70B is moved to the engaging portion 66B. Engage with. Therefore, when it is not desired to open the sliding door freely, the tip 68a of the seesaw type operation piece 68B is pushed and the guide member 10B side may be temporarily locked as in the second embodiment.
[0042]
When it is desired to arbitrarily set the open space, the sliding door is opened to a desired position while the engagement rod 70B of the operation member 65B is disengaged from the engagement portion 66B. And the front-end | tip part 68a of the seesaw-type operation piece 68B is pushed, The said engaging rod 70B is engaged with the engaging part 66B.
[0043]
The fifth embodiment of FIGS. 27 and 28 is characterized in that it includes the configuration of the guide member 10B, and is provided with a biasing spring 71B for a seesaw type operating piece 68B. The urging spring 71B is a spring provided as appropriate inside the rear end portion 68b of the seesaw type operation piece 68B, and constantly urges the operation piece 68B in the direction in which the engagement rod 70B engages with the engagement portion 66B. To do.
[0044]
In the above configuration, when the sliding engagement piece 18B is positioned at the engagement portion 66B when the sliding door is closed, the engagement rod 70B biased in the engagement direction by the biasing spring 71B is moved to the engagement portion 66B. As a result, the guard arm 12B is locked with the arm rail 11B. When it is desired to arbitrarily set the open space, the sliding door is opened to a desired position while the engagement rod 70B of the operation member 65B is disengaged from the engagement portion 66B, and the rear end portion of the seesaw type operation piece 68B. When the finger is released from 68b, the operating bar 68B automatically engages the engaging portion 66B with the operating piece 68B by the spring force of the biasing spring 71B. In the description of this embodiment, since the configuration of the guide member 10B is completely used, the reference numerals of the fourth embodiment are used as they are for convenience.
[0045]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) The guard arm of the guide member provided on the vertical side of the sliding door is locked to the lock body provided on the vertical frame side of the door frame. The desired open space can be reliably obtained by simply opening the sliding door by hand while it is in the state. On the other hand, in the event of an emergency such as a power failure, the guard arm is released from the locking cam of the lock body, and the guard arm is engaged. The end can be automatically dropped from the lock case. Therefore, management problems can be solved and at the same time the purpose of ventilation can be achieved.
(2) According to the second and third aspects of the invention, the lock member can be easily and reliably locked to the locking cam when the operating rod of the drive source is extended.
(3) According to the invention of claim 4, the guard arm of the guide member can be easily engaged with the locking cam of the lock body when the drive source is energized, while the guard body is unlocked when the lock body is unlocked. The arm naturally disengages from the locking cam.
(4) According to the fifth aspect of the present invention, when the guard arm of the guide member is engaged with the locking cam of the lock body, the positioning can be stopped at a desired position.
(5) The invention according to claim 6 is that, when it is not desired for the elderly with a blindness to freely open the sliding door, the sliding door can be temporarily locked even on the guide member side.
(6) The invention according to claim 7 can be temporarily locked even on the guide member side of the sliding door after arbitrarily adjusting the open space while the guard arm of the guide member is locked.
[Brief description of the drawings]
1 to 19 are explanatory diagrams based on a first example for explaining the embodiment of the present invention. The other drawings are explanatory views showing other embodiments of the main part or the main part.
FIG. 1 is an explanatory diagram for explaining an embodiment using a first example (when an open space is set).
FIG. 2 is an explanatory diagram for explaining the embodiment using the first embodiment (when the sliding door is closed).
FIG. 3 is a schematic perspective view of the lock body of the first embodiment.
4 is a schematic cross-sectional explanatory diagram based on line 4-4 in FIG. 3;
FIG. 5 is an explanatory diagram of a main part of the first embodiment.
FIG. 6 is an explanatory diagram of a main part of the first embodiment.
FIG. 7 is an explanatory diagram of a main part of the first embodiment.
FIG. 8 is an explanatory diagram of a main part of the first embodiment.
FIG. 9 shows a solenoid energized state after the power failure is released (before the guard arm is engaged).
FIG. 10 shows a state where the lock body locks the guard arm in FIG.
FIG. 11 is a schematic explanatory view of a guide member.
12 is an enlarged sectional view taken along line 12-12 of FIG.
FIG. 13 is an explanatory diagram of an arm rail of a guide member.
FIG. 14 is an explanatory diagram showing another example of the main part (drive source) of the first embodiment.
FIG. 15 is a front view of a second embodiment (guide member 10A) of the main part.
FIG. 16 is a schematic explanatory view of the second embodiment viewed from the bottom side (the operating member is engaged).
FIG. 17 is a schematic explanatory view of the second embodiment viewed from the bottom side (the operation member is disengaged).
FIG. 18 is an explanatory diagram of a main part (arm rail 11A) of a second embodiment.
FIG. 19 is an explanatory diagram of a main part (operation member 65) of the second embodiment.
20 is a schematic explanatory view of the third embodiment (guide member 10A) viewed from the bottom surface side. FIG.
21 is an enlarged cross-sectional view taken along line 22-22 in FIG. 20;
FIG. 22 is a schematic explanatory view in which the operation member of the third embodiment is disengaged.
FIG. 23 is an explanatory diagram of a main part (arm rail 11A) of a third embodiment.
FIG. 24 is a schematic explanatory view of the fourth embodiment (guide member 10B) viewed from the bottom surface side.
FIG. 25 is a schematic explanatory view in which the operation member of the fourth embodiment is disengaged.
FIG. 26 is an explanatory diagram of a main part (arm rail 11B) of the fourth embodiment.
FIG. 27 is a schematic explanatory view seen from the bottom side of the fifth embodiment (guide member 10B).
FIG. 28 is a schematic explanatory view in which the operation member of the fifth embodiment is disengaged.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sliding door, 2 ... Sliding door frame, 4 ... Vertical fence, 6 ... Vertical frame of door frame 10, 10A, 10B ... Guard member, 11, 11A, 11B ... Arm rail, 12, 12A, 12B ... Guard arm, 13 13A, 13B ... Rail space part, 14 ... Open space, 15, 15A, 15B ... Fixed base part, 18, 18A, 18B ... Slide engagement piece, 19, 19A, 19B ... Engagement bar, 30 ... Lock body, 31 ... Lock case, 31a ... Upper storage part, 31b ... Lower storage part, 32 ... Bottom wall, 33, 34 ... Front wall, 36 ... Guide notch part, 40 ... Solenoid, 41 ... Actuation rod, 42 ... Contact piece, 43 ... locking cam, 44 ... first pivot, 45 ... first locking portion, 46 ... contact portion, 47 ... engaging portion, 48 ... arc-shaped portion, 49 ... second locking portion, 55 ... lock member , 59 ... engaging roller, 56 ... second pivot, 60 ... spring member, 66, 6 B ... engaging portion, 65,65B ... operating member, 68,68B ... operating piece, 70,70B ... engaging rod, 71,71B ... biasing spring, 72 ... adjustment hole.

Claims

A guide member 10 provided on the sliding door side and a lock body 30 provided on the door frame side are provided, and the guide member is provided with a horizontal arm rail 11 fixedly provided on the sliding door side, and the arm rail 11. And a guard arm 12 that has a slide engagement piece 18 that slides while being guided by the arm rail at one end, and an engagement end 12a at the other end is engaged with and disengaged from the lock body 30. On the other hand, the lock body is pivotally supported by the lock case 31 and has a locking cam 43 having an engagement portion 47 for locking the guard arm 12, and is also pivotally supported by the lock case 31. A locking member 55 that is engaged with the second locking portion 49 formed in the locking cam and is urged in one direction by the spring member 60, and provided in the lock case 31, and of the operating rod 41 when energized The protruding end is the lock It comprises a drive source 40 for pressing the material 55, and when energized, the vertical arm 4 of the sliding door 1 and the vertical frame 6 of the door frame with the guard arm 12 of the guide member 10 locked to the locking cam 43 of the lock body 30. On the other hand, when the energizing rod 41 is contracted, the lock member 55 is detached from the locking cam 43 and the guard arm 12 falls from the locking cam 43 with its own weight when the energizing rod 41 is contracted. A lock device for an open state sliding door.

In claim 1, the drive source 40 is a solenoid, and a contact piece 42 that presses against the swing plate 57 of the lock member 55 is provided at the protruding end of the operating rod 41 of the solenoid. A lock device for an open state sliding door.

The engagement roller 59 that engages and disengages with the second engagement portion 49 of the engagement cam 43 is provided at the tip of the swing plate 57 of the lock member 55 according to claim 1. Locking device for open doors.

In claim 1, the locking cam 43 includes a thumb-shaped first locking portion 45 formed at a lower end portion, and an index finger-shaped contact portion 46 extending in a curved shape with respect to the first locking portion. And an arcuate portion 48 formed at the upper end portion corresponding to the wrist portion, and a notch recess formed at a portion near the upper end portion corresponding to the metacarpal bone between the arcuate portion 48 and the index finger-like contact portion 46 A locking device for an open state sliding door, characterized by having a place-like second locking portion 49.

In claim 1, the lock case 31 is composed of an upper storage portion 31a, and a lower storage portion 31b that is connected to the upper storage portion 31a and has a guide notch 36 on the front wall 33 upward from the lower end. The upper storage portion 31a communicates with the lower storage portion 31b, but protrudes forward from the lower storage portion 31b and has a bottom wall 32 that contacts the engagement end portion 12a of the guard arm 12. Locking device for sliding doors.

In claim 1, the guide member 10A comprises an arm rail 11A and a guard arm 12A, and an engaging portion 66 is formed on the fixed base portion 15A of the arm rail 11A, while one end of the guard arm 12A is formed. An operating member 65 is provided at the portion, and the operating member is attached to an operating piece 68 pivotally supported at one end of the guard arm 12A, and a distal end portion 68a of the operating piece 68, and the rail space of the arm rail 11A. An open state sliding door locking device comprising: an engaging rod 70 that engages and disengages with the engaging portion 66 in a state of passing through the slide engaging piece 18A that moves the portion 13A.

In claim 1, the guide member 10B comprises an arm rail 11B and a guard arm 12B, and a plurality of adjustment holes 72 are formed in the fixed base portion 15B of the arm rail 11B, while the guard arm 12B An operating member 65B is provided at one end of the operating piece. The operating member is attached to an operating piece 68B pivotally supported at one end of the guard arm 12B, and a tip 68a of the operating piece 68B. An open state sliding door locking device comprising an engaging rod 70B that engages and disengages with the engaging portion 66B while passing through the slide engaging piece 18B that moves in the rail space portion 13B.