JP4173016B2

JP4173016B2 - Push-pull tablet

Info

Publication number: JP4173016B2
Application number: JP2003014745A
Authority: JP
Inventors: 田島英幸; 川俣由和
Original assignee: 美和ロック株式会社
Priority date: 2003-01-23
Filing date: 2003-01-23
Publication date: 2008-10-29
Anticipated expiration: 2023-01-23
Also published as: JP2004225384A

Description

【０００１】
【発明の属する技術分野】
本発明は、プシュ・プル錠に関し、特に扉の閉戸時に内外の解錠用ハンドルをプル又はプッシュすると、ラッチ用の仮施錠片（ばねに付勢されている可動ストッパ）が、ラッチ用の仮施錠の解錠機構により、係合解除の方向へ作動するプシュ・プル錠に関する。
【０００２】
【従来の技術】
従来の技術としては、特開２００２−１２９７９６号公報を挙げることができる。この公報には、扉の施錠に用いられるラッチ錠の一実施例（請求項４，請求項５に記載の発明）が記載されている。この実施例の内外の解錠用レバーハンドルは、それぞれ扉の内外の壁面に対してプッシュ（押す）又はプル（引く）の操作が可能である。
【０００３】
そこで、便宜上、該公報に記載されている用語と符号を用いて、該ラッチ錠の錠箱に組み込まれる基本的な部材について説明する。
【０００４】
ケーシング（錠箱）３１内には、例えばプッシュ及びプルの操作が可能な解錠用の内側ハンドルを操作すると、該ハンドル側の揺動片の駆動力によって左右（フロント側又はケースの後壁側）にそれぞれ水平移動する同調部材３９（枠状摺動部材）と、この同調部材３９が水平動すると、該同調部材の上方に配設された板状係合保持部材４１を介して係合解除の方向（上方方向）に内装ばね４８のバネ力に抗して持ち上げられる可動ストッパ３８と、該可動ストッパ３８によって規制が解消され、かつ、反転式のラッチ３５の回動に伴い、後方配設のばね部材３７のバネ力に抗して錠箱６の後壁側へラッチロッド３３を介して後退する枠状可動枠部材３２とが組み込まれている。
【０００５】
前記ラッチ３２の仮施錠時（可動ストッパ３８が上方の内装バネ４８のバネ力により下方に下降している場合）に於いて、同調部材３９は、錠箱６の下部に左右対称に配設された付勢手段４０，４０の付勢ばねのバネ力により、可動枠部材３２に間接的に係合する中立位置へと自動的に復帰する。この時、前記可動ストッパ３８は下降しており、係合保持部材４１の先端係合部は、逆コ字型状の同調部材３９の上壁面に形成された凹所状の被係合部に係合する。
【０００６】
上記構成に於いて、可動ストッパ３８は可動枠部材３２に設けた係止部３２３と係脱されると共に、係止部３２３と係合することにより可動枠部材３２の移動を規制してラッチ３５を仮施錠状態にロックする旨の記載がある（公報の記述）。
【０００７】
果たしてそうであるならば、仮施錠時に於いて、可動ストッパ３８は、ラッチロッドに案内される可動枠部材に係合することから、仮施錠機能が不十分である。換言すれば、可動ストッパ３８が、例えば係合保持部材４１又は／及びラッチロッド３３に係止されているならば、技術的に「可動ストッパ３８の係合機能」を理解することができるが、移動可能な部材に可動可能なストッパ部材を単に係合さるだけでは、係合関係が不十分であり、ラッチの回動を確実に阻止することができない、という問題点がある。また、この実施例では後述する本願発明の第１の目的を達成することができない。
【０００８】
【発明が解決しようとする課題】
本発明の第１の目的は、公報記述の可動ストッパの係合関係が十分か不十分かは別として、このような構成のラッチ錠に新規な構成を加味し、或いは改良し、プッシュ・プル仕様のみならず、片面的仕様（例えばプル仕様）にも変換することができること。第２の目的は、簡単な操作又は構造で、プッシュ・プル仕様から片面的仕様に、又は片面的仕様から本来的なプッシュ・プル仕様に切替えることができること。第３の目的は、扉の閉戸時、ラッチ用の仮施錠片（可動スッパ）が、ラッチロッドに係合し、ラッチの回動を確実に阻止することができること。第４の目的は、ラッチに関連する一連の部材をラッチユニットとして構成し、錠箱に簡単に組み込むことができることである。
【０００９】
【課題を解決するための手段】
本発明のプッシュ・プル錠は、解錠用ハンドルをプル又はプッシュすると、錠箱６内に突出するハンドル側の揺動片の駆動力により、かつ、付勢手段４０の付勢力に抗して水平移動する同調部材３９、この同調部材に連動するようにラッチロッド３３に案内され、かつ可動枠部材３２内に組み込まれた可動ストッパ３８、この可動ストッパを介して可動枠部材の規制を解消するラッチ用仮施錠の解錠機構を備えたプッシュ・プル錠に於いて、前記錠箱の前板７と前記同調部材３９の先端部に相当する垂直壁３９ｂとの間に該同調部材用の規制部材８を回転可能に設け、この同調部材用の規制部材８の突出後端部８ｂは、前記垂直壁３９ｂに形成した嵌合部５５と摺嵌及び非摺嵌関係になるように位置付けられ、前記前板側から該規制部材８を所定量回動すると、前記同調部材３９の前進が阻止され、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わることを特徴とする。
【００１０】
また本発明のプッシュ・プル錠は、解錠用ハンドルをプル又はプッシュすると、錠箱６Ａ内に突出するハンドル側の揺動片の駆動力により、かつ、付勢手段４０Ａの付勢力に抗して水平移動する同調部材３９、この同調部材に連動するようにラッチロッド３３に案内され、かつ可動枠部材３２内に組み込まれた可動ストッパ３８、この可動ストッパを介して可動枠部材の規制を解消するラッチ用仮施錠の解錠機構を備えたプッシュ・プル錠に於いて、前記錠箱６Ａに、前記同調部材３９が前板７Ａ側に直接又は間接的に移動しないように取り外し可能に規制部材８Ａを設け、錠箱に該規制部材８Ａを固定すると同調部材３９の前進を阻止し、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わることを特徴とする。
【００１１】
また本発明のプッシュ・プル錠は、解錠用ハンドルをプル又はプッシュすると、錠箱６Ｂ内に突出するハンドル側の揺動片の駆動力により、かつ、付勢手段４０Ｂの付勢力に抗して水平移動する同調部材３９、この同調部材に連動するようにラッチロッド３３に案内され、かつ可動枠部材３２内に組み込まれた可動ストッパ３８、この可動ストッパを介して可動枠部材の規制を解消するラッチ用仮施錠の解錠機構を備えたプッシュ・プル錠に於いて、前記付勢手段４０Ｂは、前記同調部材３９に突出した受片３９ｃを基準にして錠箱６Ｂの左右の可動ブロック４０ａ、４０ａと、これらの可動ブロックを前記受片３９ｃに圧接する方向にそれぞれ付勢する左右のばね２０、４０ｂとから成り、また、前記錠箱の前板７と前記左側の前板側可動ブロック４０ａとの間に該前板側可動ブロック用の規制部材８Ｂを回転可能に設け、この規制部材８Ｂの突出後端部８ｂは、前記前板側可動ブロックの先端部に相当する垂直壁３９ｂに形成した嵌合部５５Ｂと摺嵌及び非摺嵌関係になるように位置付けられ、前記前板側から該規制部材８Ｂを所定量回動すると、前記同調部材の前進が前板側可動ブロック４０ａを介して間接的に阻止され、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わることを特徴とする。
【００１２】
また本発明のプッシュ・プル錠は、解錠用ハンドルをプル又はプッシュすると、錠箱６Ｃ内に突出するハンドル側の揺動片の駆動力により、かつ、付勢手段４０の付勢力に抗して水平移動する同調部材３９、この同調部材に連動するようにラッチロッド３３に案内され、かつ可動枠部材３２内に組み込まれた可動ストッパ３８、この可動ストッパを介して可動枠部材の規制を解消するラッチ用仮施錠の解錠機構を備えたプッシュ・プル錠に於いて、前記付勢手段４０は、前記同調部材３９に突出した受片３９ｃを基準にして錠箱６Ｃの左右の可動ブロック４０ａ、４０ａと、これらの可動ブロックを前記受片３９ｃに圧接する方向にそれぞれ付勢する左右のばね４０ｂ、４０ｂとから成り、また、前記錠箱に、裏面に設けられた同調部材用の突出規制部８Ｃが同調部材３９或いは前板側可動ブロック４０ａと対面するように前板７Ｃを固定すると、前板７Ｃが同調部材３９の前進を直接又は間接的に阻止して本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わり、一方、前板７Ｃの突出規制部８Ｃが同調部材３９或いは前記左側の前板側可動ブロック４０ａと対面しないように該前板７Ｃの上下が入れ替わるように前板７Ｃを逆様状態にして錠箱６Ｃに固定すると、片面的仕様態様からプッシュ・プル仕様に切り替わることを特徴とする。
【００１３】
さらに、本発明のプッシュ・プル錠は、解錠用ハンドルをプル又はプッシュすると、錠箱６内に突出するハンドル側の揺動片の駆動力により、かつ、付勢手段４０の付勢力に抗して水平移動する同調部材３９、この同調部材に連動するようにラッチロッド３３に案内され、かつ可動枠部材３２内に組み込まれた可動ストッパ３８、この可動ストッパを介して可動枠部材の規制を解消するラッチ用仮施錠の解錠機構を備えたプッシュ・プル錠に於いて、錠箱にハンドル支持座５２、縦軸５３を介して該ハンドル支持座に軸支された揺動片５１を有する取付け座ユニットＵＮを装着し、該取付け座ユニットＵＮの前記ハンドル支持座５２又は前記揺動片５１に、解錠用ハンドル５０と共に揺動する該揺動片５１のプッシュ側への動きを規制する規制片６１を固定すると、前記解錠用ハンドル５０がプッシュ側に動かないために前記同調部材３９の前進が間接的に阻止されて本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わり、一方、前記規制片６１を取付け座ユニットＵＮから取り外すと、片面的仕様態様からプッシュ・プル仕様に切り替わることを特徴とする。
【００１４】
【発明の実施の形態】
図１乃至図１２を参照にして本発明の第１実施例を作用と共に説明する。
【００１５】
（１）環境部材と本発明の特徴
まず、環境部材と本発明の特徴を簡単に説明する。１は寝室、トイレ、玄関等の出入口の戸枠、２はストライクを有する受け金具、３は戸枠の縁（直接的にはストライクも含まれる）、４は水平方向に回動して出入口を開閉する扉（例えば室内扉）、５は室内の扉４の戸先に設けられた錠前、本実施例ではプッシュ・プル錠５である。プッシュ・プル錠５の錠箱６には、前板７（ここではフロント又は／及び取付け前板を意味する）に対して規制部材の一例としての回動ボタン８が設けられ、該回動ボタン８を所定量回動操作すると、プッシュ・プル錠５におけるラッチの解錠態様（仮施錠状態を解錠状態にする態様）が、プッシュ・プル仕様又はプル仕様のいずれかに切り替わるようになっている。
【００１６】
（２）錠箱の構成
図２を参照にして錠箱６の構成を説明する。まず錠箱６は、ケース身６ａと、このケース身６ａの一側開口を閉鎖する矩形状のケース蓋６ｂとから成る。ケース身６ａは前板７を有する。ここで、「前板７」とは、ケース身６ａの取付け前板又は／及びフロントを意味する。取付け前板とフロントとが別体の場合には、普通一般に両者は図示しない固着具を介して合体する。
【００１７】
さて、前板７の中央部には、矩形状のラッチ窓９が形成されており、本実施例では、このラッチ窓９よりも下位の部位に前述した回動ボタン８の先端部８ａが嵌合する円形の貫通孔１０が形成されている。錠箱６は、前板７と交差する幅広側壁１１、下壁１２、上壁１３、上・下壁に交差する後壁１４を有する。
そして、ケース蓋６ｂと対向する前記幅広側壁１１（ここではケース身６ａを例にして説明する。）には、錠箱６内に組み込まれる複数個の部材を案内するガイド部や揺動片が入り込む窓、枢支孔、軸取付け孔等が所要位置にそれぞれ形成されている。
【００１８】
例えば１５は下壁１２に沿うように一番下位の中央部に形成された左右１対の第１案内部（横長の開口、横長溝、横長突起など）、１６はハンドル側の揺動片５１の挟み部分５１ｂが入り込む揺動片用の窓、１７は係合保持部材（上下方向の揺動板、揺動杆など）用の枢支孔である。その他幅広側壁１１には大小の窓が形成されているが、本発明の特定要件に関係がないので割愛する。
【００１９】
（３）錠前の主な構成部材
本発明は、前述したプッシュ・プル型ラッチ錠の基本的な構造を含んでいるので、比較の意味合で可能な限り、特開２００２−１２９７９６号公報に記載の用語及び符号を用いることにする。
【００２０】
さて、錠箱（ケーシング）６内にはラッチの仮施錠・仮施錠の解錠機構を構成する幾つかの部材が組み込まれている。例えば可動枠部材３２、該可動枠部材を案内するラッチロッド３３、ラッチ用支持ブロック３４、ラッチ３５、ラッチを直接ロックするロックピン３６、可動枠部材用ばね部材３７、可動枠部材に内装ばね４８と共に組み込まれる可動ストッパ３８、ハンドル側の揺動片の駆動力によって水平方向へ摺動する枠状の同調部材３９、左右１対の同調部材用付勢手段４０，４０、板状の係合保持部材４１、合成樹脂材で形成された環状のラッチ支持座４９等を備える。なお、錠箱６内には、本発明の特定要件には関係がない本施錠用のロック部材４３や角穴付きカム４４なども備えられているが、これらについては説明を割愛する。
【００２１】
（４）ラッチ仮施錠用の主な構成部材
「可動枠部材３２」…可動枠部材３２は錠箱６内の中間箇所にラッチロッド３３を介して水平動可能に配設されている。つまり、可動枠部材３２はラッチロッド３３に案内されて水平方向に進退動可能である。図３で示すように、可動枠部材３２は、本実施例では玩具のブロック状に形成されている。
図３を基準にして可動枠部材３２とこれに関連するラッチロッド３３とを説明する。３２ａは可動ストッパ３８を内装する直方体或いは立方体状の空洞を有する収納部で、この収納部３２ａの後壁部にはラッチロッド３３の後端部側の大径部３３ａを案内する一つの水平案内貫通孔３２ｂが形成されている。
【００２２】
３２ｃは収納部３２ａの前壁部からブロック状に突出する受部で、この受部３２ｃの前面は後述するピン状のラッチロック部材３６の後端面と当接する。この受部３２ｃにはラッチロッド３３の先端部側の小径部３３ｂを案内する他の水平案内貫通孔３２ｄが形成されている。二個の水平案内貫通孔３２ｂ，３２ｄは同軸線上に位置している。前記収納部３２ａの下壁部の内壁面ないし両端面は、下向きコ字型形状可動ストッパ３８を案内する機能を有している。
【００２３】
「ラッチロッド３３」…ラッチロッド３３は可動枠部材３２の前後の水平案内貫通孔３２ｂ，３２ｄに水平状態に挿通され、かつ、軸回りに回動可能である。
ラッチロッド３３は、本実施例では、仮施錠時、ラッチの後退を確実に阻止することができるように可動ストッパ３８と係合する。つまり、ラッチ３５の水平回動に追従してラッチロックピン３６が後退し、該ラッチロックピンに押される可動枠部材３２の後退を可動ストッパ３８との係合関係により仮施錠状態を確実なものとする。この点、従来の公報記載のラッチ錠と相違する。
【００２４】
「ラッチ用支持ブロック３４」…図４で示すように、ラッチ用支持ブロック３４は、可動枠部材３２の前方の水平案内貫通孔３２ｄを貫通したラッチロッド３３の小径先端部に固定的に設けられている。つまり、支持ブロック３４とラッチロッド３３は一定的に結合している。
【００２５】
しかして、ラッチ支持ブロック３４は、可動枠部材３２の受部３２ｃの前面と対向する円板状のロッド連結部３４ａと、このロッド連結部３４ａの前面に半径方向に突出形成されたラッチロック部材の一例としてのロックピン３６を案内する案内部３４ｂと、この案内部３４ｂに指先状に突出形成されたラッチ軸受け部３４ｃとを有する。
【００２６】
前記案内部３４ｂにはロックピン３６が貫通状態に嵌挿される。また前記軸受け部３４ｃには、ラッチ３５が垂直の枢支ピン４７を介して枢着される。
ラッチ３５…ラッチ３５の種類は問わない。ラッチには、回動しながら後退するもの、単に後退するもの、ラッチロッドを一体的に有するものなど色々ある。本実施例のラッチは、所定量回動（ここでは所定量回る意味合い）する。
【００２７】
さて、ラッチ３５は矩形状の開口を有するラッチ支持座４９に貫通状態に嵌め込まれる。この点公報記載のラッチ錠とは相違する。ラッチ支持座４９を設けることにより、ラッチ３５を安定的に支持することができる。またラッチ３５は、ラッチ錠箱６の前板７のラッチ窓から外方へ突出し、枢支ピン４７を介してラッチ支持ブロック３４に連結されている。ラッチ３５の先端部３５ａに連設する対向壁状後端部３５ｂ，３５ｂは、それぞれ外壁面に小突起状のラッチ保持部４２，４２を有している。また対向壁状後端部３５ｂ，３５ｂの間は、ラッチ支持ブロック３４の軸受け部３４ｃが入り込む収納空間３５ｃとなっている。本実施例では、この収納空間３５ｃを形成する垂直縁部３５ｄの一部にロックピン３６の先端面３６ａが当接する。
【００２８】
「ロックピン３６」…前述したように、ロックピン３６の後端面３６ｂは可動枠部材３２の受部３２ｃの前面に当接する。換言すると、ラッチロック部材３６は軸受け部材の一例としての支持ブロック３４にラッチロッド３３の軸線方向に移動可能に組み付けられると共に、ラッチロック部材３６の前端縁はラッチ３５の後端縁に当接され、ラッチ３５を反転不能な施錠位置にロックできる構成になっている。
【００２９】
「各部材の一体的構成」…本実施例では、図５及び図６で示すように、ラッチ３５と、ラッチ３５を枢支するラッチ支持ブロック３４と、このラッチ支持ブロック３４に連結されたラッチロッド３３と、このラッチロッド３３にスライド自在に設けられた可動枠部材３２は、一つのラッチユニットとして一体的に構成されている。したがって、錠箱６に対する組み込みが容易である。
【００３０】
「ばね部材３７」…可動枠部材３２を直接付勢するばね部材３７は、ラッチ３５が施錠位置に保持される方向に可動枠部材３２及びラッチロック部材３６を常時付勢する。したがって、ばね部材３７はラッチバネとしての機能を有し、その先端部はラッチロッド３３の後端部に巻装されていると共に、可動枠部材３２の収納部３２ａの後壁外壁面に圧接し、一方、他端部はケース身６ａの後壁１４の内壁面に圧接している。
【００３１】
「可動ストッパ３８」…可動ストッパ３８は、金属板材をコ字状に折り曲げ加工することにより構成されている。可動ストッパ３８は、可動枠部材３２の収納部３２ａ内にラッチロッド３３を跨ぐように内装され、かつ、収納部３２ａの内壁面等に昇降自在に案内される。
【００３２】
図７を参照して可動ストッパ３８が仮施錠片の一例である理由について説明する。本実施例では、可動ストッパ３８は、可動枠部材３２の収納部３２ａ内に組み込まれた内装ばね４８により、ラッチロッド３３の後端部側大径部３３ａの内面と係合するように常時係合（下方）方向に付勢されている。
【００３３】
図７の一方は、可動ストッパ３８が内装ばね４８のバネ力に抗してスライド上昇し、ラッチロッド３３の後端部側大径部３３ａのフランジ状内面から離れ、いわゆる仮施錠（係合）を解除した状態の概略図である。この場合に於いて、ラッチ３５が回動することにより、ロックピン３６が矢印Ａ方向（ケース身の後壁方向）へ移動すると、可動枠部材３２は、いわば障害物がないので、ラッチロッド３３に案内されながら矢印Ａ方向に移動する。
【００３４】
一方、図７の他方は、可動ストッパ３８が内装ばね４８のバネ力によりスライド下降し、ラッチロッド３３の後端部側大径部３３ａの内面に入り込み、いわゆる仮施錠（係合）になった状態の概略図である。この時、可動枠部材３２は、ロックピン３６により矢印Ａ方向（ケース身の後壁方向）へ押されても、可動ストッパ３８が障害物になるので、可動枠部材３２は、ラッチロッド３３に案内されて矢印Ａ方向に移動することができない。
【００３５】
したがって、ラッチ３５も回動することができない。それ故に、可動ストッパ３８は、可動枠部材３２の移動を規制してラッチ３５を仮施錠状態にロックするものであるから、いわゆる仮施錠片に相当する。
【００３６】
（５）ラッチ仮施錠の解錠機構の主な構成部材
ここで、内・外の解錠用ハンドル５０について説明する。内・外の解錠用ハンドル５０は、図８で示すように揺動片５１の外端部の各軸部５１ａに固定的に取り付けられている（ここでは説明の便宜上、一方の解錠用ハンドル、揺動片等を示す）。揺動片５１の内端部５１ｂは挟み状に突出形成され、該内端部５１ｂが、図９の矢印で示すように同調部材３９の係合柱３９ａに係合する。
【００３７】
「揺動片５１」…揺動片５１は扉１の室内側と室外側にそれぞれ取り付けられたハンドル支持座５２を介し、かつ、錠箱６の揺動片用の窓１６からその内端部５１ｂが突出するように配設される。揺動片５１はハンドル支持座５２に固定された縦軸５３を介して左右に揺動可能である。
【００３８】
したがって、解錠用ハンドル５０を図８の矢印で示すようにプッシュ（例えば室外側からは押す）又はプル（例えば室内側から引く）方向にそれぞれ操作すると、揺動片５１は左右に揺動する。
【００３９】
「同調部材３９」…枠状の同調部材３９は、操作部材としての解錠用ハンドル５０をプッシュまたはプル操作すると、解錠用ハンドル側の揺動片５１の駆動力により、かつ、付勢部材４０の付勢力に抗して水平移動する。
【００４０】
その結果、前述した可動ストッパ３８は、板状の係合保持部材４１を介し、かつ、内装ばね４８のバネ力に抗して上昇するので、ラッチロッド３３は可動ストッパ３８の規制から解放（係合解除）される。本実施例の同調部材３９は、横長の端面逆コ字型に形成されているが、ガイド機能、係合機能等を付与するために、中央部の垂直壁３９ｂに交差する上壁３９ｃと下壁３９ｄは、錠箱６の後壁１４付近まで延びている。
【００４１】
ところで、前記垂直壁３９ｂには、嵌合部（縦長孔、切欠など）５５が形成され、該嵌合部５５には、図１０で示す規制部材（例えば回動ボタン）８の大径状のストッパ部１８に連設する突状後端部８ｂが、その回動位置如何によって嵌入する。また前記下壁３９ｄには付勢手段用の受片３９ｅが下方に突出している。
「付勢手段４０，４０」…付勢手段４０は、可動ストッパ３８が、ラッチロッド３３の大径部３３ａの内面（係合部）に係止される中立位置に自動的に復帰できるように同調部材３９を付勢する。
【００４２】
しかして、付勢手段４０，４０は、錠箱６の第１案内部１５，１５にそれぞれ案内され、かつ、同調部材３９の受片３９ｅを基準とした左右一対の可動ブロック４０ａ，４０ａと、これらの可動ブロック４０ａ，４０ａを前記受片３９ｅに圧接させる方向にそれぞれ付勢する左右１対のばね４０ｂ，４０ｂとから構成されている。
【００４３】
「係合保持部材４１」…板状の係合保持部材４１は、一端部は錠箱６に可動ストッパ３８の移動方向に揺動可能に支持され、その揺端部には可動ストッパ３８の下端部と当接する筒状の係合保持部４１ａが形成されている。
【００４４】
この係合保持部材４１は、揺動片５１の駆動力により、同調部材３９が付勢手段４０の付勢力に抗して左又は右に移動すると、錠箱６の枢支孔１７を支点に係合保持部４１ａが上方方向に上がり、これにより可動ストッパ３８が上昇し、ラッチロッド３３に対する可動ストッパ３８の係合関係が解消する（係止解除）。
【００４５】
一方、同調部材３９が付勢手段４０により中立位置に復帰すると、同調部材３９の上壁３９ｃに形成した係合凹所６６に前記係合保持部４１ａが係合し、その結果、可動ストッパ３８が下降し、ラッチロッド３３に係合する。
【００４６】
したがって、この実施例では解錠用ハンドル５０をプッシュまたはプル操作すると、同調部材３９の水平移動、係合保持部材４１の上下方向への揺動、これに連動する可動ストッパ３８の移動を介して可動枠部材３２等を仮施錠または仮施錠の状態を解錠状態にすることができる。
【００４７】
上記構成に於いて、錠箱６の前板７の手前から図示しないドライバーの先を回動ボタン８の突出先端部８ａの溝１９に差し込み、回動ボタン８を所定量回動操作すると、同調部材３９の一方が規制又は規制解除されるので、錠前５の態様が、プッシュ・プル仕様又はプル仕様（又はプッシュ仕様）のいずれかに切り替わる。
【００４８】
まず、図１１は回動ボタン８の溝１９が縦の状態の場合である。この縦状態の場合は回動ボタン８の縦長状の突出後端部８ｂも縦の状態である。つまり、同調部材３９が錠箱６の前板７に向かって移動することができるよう該突出後端部８ｂと同調部材３９とが滑り対偶（摺嵌関係）となっている。
【００４９】
したがって、同調部材３９は揺動片５１の駆動力により前板７方向へ移動可能であるから、解錠用ハンドル５０をプッシュ（押す操作）することができる。それ故に、プッシュ・プル錠５が図１１の態様の場合、当該解錠用ハンドル（内外の解錠用ハンドル如何を問わない）を「プル（引く操作）」又は「プッシュ（押す操作）」することができる。この場合プッシュ・プル錠５は、本来的意味でのプッシュ・プル仕様である。
【００５０】
このように解錠用ハンドルを手にした当該解錠用ハンドルを「プル」又は「プッシュ」すると、同調部材３９は左右いずれにでも移動し、その結果、ラッチ用の仮施錠片３８は係止解除（解錠）方向へ移動する。
【００５１】
次に、図１２は回動ボタン８の溝１９が横の状態の場合である。この横状態の場合は回動ボタン８の後端部８ｂも横の状態である。つまり、同調部材３９が錠箱６の前板７に向かって移動することができないよう該突状後端部８ｂと同調部材３９とが非滑り対偶（非摺嵌関係）となっている。
【００５２】
したがって、同調部材３９は揺動片５１の駆動力により前板７方向へ移動不可能であるから、解錠用ハンドル５０をプッシュ（押す操作）することができない。それ故に、プッシュ・プル錠５は、図１２の態様の場合、当該解錠用ハンドルを「プッシュ」ことができないから、プル仕様のみということになる。
【００５３】
このように第１実施例のプッシュ・プル錠５は、ドライバーで回動ボタン８を回動操作するだけで、簡単にプッシュ・プル仕様から片面的仕様（例えばプル仕様）に変換することができる。もちろん、その逆も同様である。
【００５４】
【実施例】
まず第１実施例に於いて、回動ボタン８の突出後端部８ｂの形状は、縦長状以外に楕円形状、菱形形状など自由に設計変更可能である。また、回動ボタン８の突出後端部８ｂに回動ボタン用の支持バネ２０を巻装しても良い。
【００５５】
次にこの欄では、本実施の形態（第１実施例）と異なる実施例について説明する。なお、各実施例は、発明の主たる目的が同一なので、各実施例の説明にあたって、第１実施例と同一又は同様（機能が同一）の部分には、同一又は同様の符号を付し、重複する説明を省略する。
【００５６】
図１３に示す第２実施例に於いて、前記第１実施例と主に異なる点は、同調部材３９の前進（前板側、左側）を阻止する規制部材８Ａを錠箱６Ａに抜き差し可能に固定したことである。
【００５７】
すなわち、第２実施例のプッシュ・プル錠５Ａは、錠箱６Ａのケース身６ａ（その前板７Ａ又は／及び幅広側壁１１Ａ）又はケース蓋６ｂの前板寄りの部位に複数個の取付け孔１０Ａ，１０Ａを形成し、少なくとも取付け孔１０Ａの一つを介して錠箱６Ａに、同調部材３９が前板７Ａ側に移動しないように取り外し可能に規制部材８Ａを設けてある。
【００５８】
したがって、前板７Ａ、或いは幅広側壁１１Ａ、或いはまたケース蓋６ｂに規制部材８Ａを固定すると、同調部材３９の前進が阻止されるため、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わる。規制部材８Ａの一例としては固定具（例えばネジ）が用いられている。
それ故に、例えば規制部材８Ａをメネジ１０Ａに差し込んで前板７Ａに固定すると「プル操作のみ」となり、一方、規制部材８Ａを前板７Ａから抜き取ると「プッシュ操作も可能」となる。規制部材８Ａは棒状体、板状体、ブロック状などでも良く、その形態をネジに限定するものではない。
【００５９】
なお、第２実施例では規制部材８Ａで同調部材３９の前進を直接阻止しているが、後述する第３実施例のように「同調部材３９の前進を間接的に阻止」するために、例えば螺杆、ピン等の棒状体を前板７Ａの最下部に抜き取の可能に設け、付勢手段４０Ａの前板側可動ブロック４０ａの移動を阻止しても良い（このように構成を置換した場合も当然均等の範囲である）。
【００６０】
図１４及び図１５に示す第３実施例に於いて、前記第１実施例と主に異なる点は、第１実施例と同様の構成を採用し、同調部材３９の前進を間接的に阻止したことである（これも構成を置換した例である）。
【００６１】
すなわち、第１実施例では、回動ボタン８で直接的に同調部材３９の前進を阻止しているが、この第３実施例のプッシュ・プル錠５Ｂでは、錠箱６Ｂの前板７Ｂの最下部に、支持バネ２０を備えた突出後端部８ｂと付勢手段４０Ｂの前板側可動ブロック４０ａとが摺嵌及び非摺嵌関係になるように回動ボタン８Ｂを支持貫通孔１０Ｂに取付け、前記前板側から該回動ボタン８Ｂを所定量回動すると、前記同調部材３９の前進が前板側可動ブロック４０ａを介して阻止され、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わる。
【００６２】
符号５５Ｂは前板側可動ブロック４０ａの垂直壁に形成した嵌合部（例えば縦長孔）である。また前板側可動ブロック４０ａを付勢するばね４０ｂは突出後端部８ｂに巻装された前記支持バネ２０に代えている（図１４参照）。したがって、前板側可動ブロック４０ａと支持バネ２０は、左側の付勢手段Ｂを構成している。
【００６３】
図１６乃至図１８に示す第４実施例に於いて、前記第１実施例と主に異なる点は、前板８Ｃに突起部（ブロック状、棒状、板状などの規制用突起）を一体的に設け、同調部材３９の前進を間接的に阻止したことである（これも構成を置換した例である）。
【００６４】
なお、前板７Ｃの裏面に突出形成した突出規制部８Ｃは、同調部材３９に対面するようにしてあるが、もちろん、前板側可動ブロック４０ａと対面するようにして良い。
【００６５】
しかして、第４実施例のプッシュ・プル錠５Ｃは、錠箱６Ｃに、同調部材３９が前板７Ｃ側に移動しないように突出規制部８Ｃを有する前板７Ｃを取付け、錠箱に前記突出規制部８Ｃが同調部材３９或いは前板側可動ブロック４０ａと対面するように前板７Ｃを固定すると、前板７Ｃが同調部材３９の前進を直接又は間接的に阻止し、本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わり、一方、前板７Ｃを逆様（ここでは、前板７Ｃを垂直状態に回して裏面を表側にすることではなく、上端部と下端部を逆にすることを意味する）にして錠箱６Ｃに固定すると、片面的仕様態様からプッシュ・プル仕様からプル仕様に変換する。
【００６６】
図１９乃至図２１に示す第５実施例に於いて、前記第１実施例と主に異なる点は、錠箱ではなく、扉４の壁面に固定される取付け座ユニットＵＮに規制片６１を設けたことである。
【００６７】
すなわち、錠箱６に扉４を介してハンドル支持座５２、縦軸５３を介して該ハンドル支持座５２に軸支された揺動片５１を有する取付け座ユニットＵＮを装着し、該取付け座ユニットＵＮに固定具６０を介して規制片６１を固定すると、解錠用ハンドル５０がプッシュ側に動かないために、前記同調部材３９の前進が間接的に阻止されて本来的なプッシュ・プル仕様からプル仕様というような片面的仕様態様に切り替わり、一方、規制片６１を取付け座ユニットＵＮから取り外すと、片面的仕様態様からプッシュ・プル仕様からプル仕様に変換する。
【００６８】
この考え方は、揺動片５１の外端部（角軸）５１ａが縦軸５３を支点に左右に自由に動く構造になっている場合に於いて、ある部品を解錠用ハンドルの動きを規制するハンドル支持座５２又はハンドルの軸部に取り付けることにより、例えば前記外端部（角軸）５１ａが扉４の吊元側には動かないようにすれば、プッシュ操作は殺され、プル操作のみが可能になるという発想であるが、同調部材の前進を間接的に阻止する点で、第１実施例の主たる目的と同一である。
【００６９】
ところで、この実施例では、ハンドル支持座５２の一例として左右に取付けビス孔６２，６２を有する丸座を用いている。ビス孔６２，６２の周りには規制片６１用の凹所６４が適宜に形成され、一つのビス孔６２に符合する貫通小孔部６５と、この貫通小孔部６５に連設する縦長状の規制突起部６６とを有する規制片６１が該凹所６４に固着具６０を介して固定的に装着される。なお、ハンドル支持座５２の中心部には角軸孔６３が形成されている。また本発明は、プッシュ・プル仕様とプル仕様との変換例を中心に説明したが、当業者の立場からすれば、をプッシュ・プル仕様とプッシュ仕様との相互変換に変更することは均等の範囲である。
【００７０】
【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）ユーザーが建物の扉の取付け場所を考慮し、プッシュ・プル仕様と、片面的仕様（プル仕様、又はプッシュ仕様）とを、自由に選択することができる。
（２）上記（１）に於いて、第１実施例の場合には、錠箱の前板から見える規制部材を所定量回動するだけの操作で、例えばプッシュ・プル仕様から片面的仕様に、又は片面的仕様から本来的なプッシュ・プル仕様に切替えることができる。第２実施例〜第５実施例も規制部材、或いは突出規制部、或いは規制片を適宜に設けることにより、第１実施例と同様の目的を達成することができる。
（３）扉の閉戸時、ラッチ用の仮施錠片としての可動スッパが、ラッチロッドに係止状態に係合するので、可動枠部材〜ラッチの移動を確実に阻止することができる。
（４）ラッチ３５、ラッチ支持ブロック３４、ラッチロッド３３、可動枠部材３２が一体的に構成されているので、錠箱６に対する組み込みが容易である。
【図面の簡単な説明】
図１乃至図１２は本発明の第１実施例を示す各概略説明図。図１３は本発明の第２実施例を示す説明図。図１４及び図１５は本発明の第３実施例を示す各概略説明図。図１６乃至図１８は本発明の第４実施例を示す各概略説明図。図１９乃至図２１は本発明の第５実施例を示す各概略説明図。
【図１】蓋板の一部、関係のない部材等を省略した内部構造を示す概略説明図。
【図２】蓋板の一部、関係のない部材等を省略した錠箱の概略説明図。
【図３】可動枠部材とロッドとの関係を示す分解斜視図。
【図４】ラッチ、ロックピン、支持ブロック、ロッド、可動枠部材等の概略説明図。
【図５】ラッチユニット（ラッチ、ロックピン、支持ブロック等）の概略説明図。
【図６】図５の６−６線概略断面図。
【図７】可動枠部材と可動ストッパとロッドとの係合関係を示す概略説明図。
【図８】取付け座ユニットの斜視図。
【図９】同調部材と取付け座ユニットの揺動片との関係を示す説明図。
【図１０】規制部材の一例を示す説明図。
【図１１】プッシュ操作が可能な場合の概略説明図。
【図１２】規制部材（回動ボタン）を回動し、錠前の仕様態様を変換した場合（プッシュ不可）の概略説明図。
【図１３】第２実施例を示す図１と同様の概略説明図。
【図１４】第３実施例を示す図１と同様の概略説明図。
【図１５】規制部材（回動ボタン）と規制される部材との関係を示す斜視図。
【図１６】第４実施例を示す図１と同様の概略説明図。
【図１７】前板の正面図。
【図１８】図１７の１８−１８断面図。
【図１９】取付け座ユニットを上方から見た概略説明図。
【図２０】取付け座ユニットを正面から見た概略説明図。
【図２１】取付け座ユニットの概略断面説明図。
【符号の説明】
１…戸枠、２…受け金具、３…縁、４…扉、５Ａ，５Ｂ，５Ｃ…錠前（プッシュ・プル錠）、６，６Ａ，６Ｂ，６Ｃ…錠箱、６ａ…ケース身、６ｂ…ケース蓋、７，７Ａ，７Ｂ，７Ｃ…前板、８，８Ａ，８Ｂ，８Ｃ…規制部材（回動ボタン、突出規制部等）、８ａ…先端部、８ｂ…突出後端部、１８…ストッパ部、１９…溝、９…ラッチ窓、１０，１０Ａ…貫通孔、１１，１１Ａ…幅広側壁、２０…支持バネ、３２…可動枠部材、３２ａ…収納部、３２ｂ，３２ｄ…水平案内貫通孔、３２ｃ…受部、３３…ラッチロッド、３３ａ…大径部、３３ｂ…小径部、３４…支持ブロック、３４ａ…ロッド連結部、３４ｂ…案内部、３４ｃ…ラッチ軸受け部、３５…ラッチ、３５ａ…先端部、３５ｂ…後端部、３５ｃ…収納空間、３５ｄ…垂直縁部、３６…ラッチロック部材、３７…可動枠部材用ばね部材、３８…可動ストッパ、３９…同調部材、３９ａ…係合柱、３９ｂ…垂直壁、３９ｃ…上壁、５５，５５Ｂ…嵌合部、５６…係合凹所、４０，４０Ａ，４０Ｂ…同調部材用付勢手段、４０ａ…可動プロック、４０ｂ…ばね、４１…係合保持部材、４８…可動ストッパ用内装ばね、４９…ラッチ支持座、５０…解錠用ハンドル、５１…揺動片、５１ａ…外端部、５１ｂ…内端部、５２…ハンドル支持座、５３…縦軸、ＵＮ…取付け座ユニット、６０…固着具、６１…規制片、６２…取付けビス孔、６３…角軸孔。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a push-pull lock, and in particular, when a door for unlocking is pulled or pushed when the door is closed, a temporary locking piece for latching (a movable stopper biased by a spring) is used for latching. The present invention relates to a push-pull lock that operates in the direction of disengagement by a temporary unlocking mechanism.
[0002]
[Prior art]
  JP-A-2002-129796 can be cited as a conventional technique. This publication describes an example of a latch lock used for locking a door (the inventions according to claims 4 and 5). The inner and outer unlocking lever handles of this embodiment can be pushed (pulled) or pulled (pulled) against the inner and outer walls of the door.
[0003]
  Therefore, for the sake of convenience, basic members incorporated into the lock box of the latch lock will be described using terms and symbols described in the publication.
[0004]
  In the casing (lock box) 31, for example, when an unlocking inner handle that can be pushed and pulled is operated, the left and right (front side or rear wall side of the case) are driven by the driving force of the swing piece on the handle side. ), And when the synchronizing member 39 moves horizontally, the engagement is released via the plate-like engagement holding member 41 disposed above the synchronizing member. The movable stopper 38 is lifted against the spring force of the internal spring 48 in the direction (upward direction), the restriction is eliminated by the movable stopper 38, and the rearward arrangement is provided as the reversing latch 35 rotates. A frame-shaped movable frame member 32 that is retracted via a latch rod 33 to the rear wall side of the lock box 6 against the spring force of the spring member 37 is incorporated.
[0005]
  During temporary locking of the latch 32 (when the movable stopper 38 is lowered downward by the spring force of the upper internal spring 48), the tuning member 39 is disposed symmetrically at the lower part of the lock box 6. The spring force of the biasing springs of the biasing means 40, 40 automatically returns to the neutral position where it is indirectly engaged with the movable frame member 32. At this time, the movable stopper 38 is lowered, and the tip engaging portion of the engagement holding member 41 is in a recessed engagement portion formed on the upper wall surface of the inverted U-shaped synchronization member 39. Engage.
[0006]
  In the above configuration, the movable stopper 38 is engaged with and disengaged from the engaging portion 323 provided on the movable frame member 32, and the movement of the movable frame member 32 is restricted by engaging with the engaging portion 323 to latch 35. Is locked in a temporarily locked state (description in the publication).
[0007]
  If so, at the time of temporary locking, the movable stopper 38 is engaged with the movable frame member guided by the latch rod, so that the temporary locking function is insufficient. In other words, if the movable stopper 38 is locked to, for example, the engagement holding member 41 or / and the latch rod 33, the “engagement function of the movable stopper 38” can be technically understood. Simply engaging the movable stopper member with the movable member causes a problem that the engagement relationship is insufficient, and the rotation of the latch cannot be reliably prevented. Further, in this embodiment, the first object of the present invention described later cannot be achieved.
[0008]
[Problems to be solved by the invention]
  A first object of the present invention is to add or improve a new structure to the latch lock having such a structure, whether or not the engagement relationship of the movable stopper described in the publication is sufficient or insufficient. It can be converted not only to specifications but also to single-sided specifications (for example, pull specifications). The second purpose is to be able to switch from push-pull specification to single-sided specification or from single-sided specification to original push-pull specification with a simple operation or structure. The third purpose is that when the door is closed, the latching temporary locking piece (movable spar) engages with the latch rod and can reliably prevent the latch from rotating. A fourth object is that a series of members related to the latch can be configured as a latch unit and can be easily incorporated into the lock box.
[0009]
[Means for Solving the Problems]
  The push-pull lock of the present invention is a lock box when the unlocking handle is pulled or pushed.6Energizing means by the driving force of the swinging piece on the handle side protruding inward40Member that moves horizontally against the biasing force39Latch rod to interlock with this tuning member33Guided to,AndMovable frame member32Movable stopper built in38In the push-pull lock provided with a latch temporary locking unlocking mechanism that eliminates the restriction of the movable frame member via the movable stopper, the front plate 7 of the lock boxAnd a regulating member 8 for the tuning member is rotatably provided between the tuning wall 39 and a vertical wall 39b corresponding to the tip of the tuning member 39.,The protruding rear end 8b of the regulating member 8 for the tuning member is formed with a fitting portion 55 formed on the vertical wall 39b.To have a sliding and non-sliding relationshipPositionedWhen the regulating member 8 is rotated by a predetermined amount from the front plate side, the advancement of the tuning member 39 is prevented and the original push / pull specification is switched to a one-sided specification mode such as a pull specification. To do.
[0010]
  The push-pull lock of the present invention is a lock box when the unlocking handle is pulled or pushed.6 AEnergizing means by the driving force of the swinging piece on the handle side protruding inward40AMember that moves horizontally against the biasing force39Latch rod to interlock with this tuning member33Guided to,AndMovable frame member32Movable stopper built in38In the push-pull lock provided with the unlocking mechanism of the temporary lock for latch that removes the restriction of the movable frame member through the movable stopper, the synchronization member 39 is disposed on the front plate 7A side in the lock box 6A. A restricting member 8A is provided so as to be removable so as not to move directly or indirectly, and when the restricting member 8A is fixed to the lock box, the advancement of the tuning member 39 is prevented, and the original push-pull specification is referred to as a pull specification. It switches to the one-sided specification aspect, It is characterized by the above-mentioned.
[0011]
  The push-pull lock of the present invention is a lock box when the unlocking handle is pulled or pushed.6BEnergizing means by the driving force of the swinging piece on the handle side protruding inward40BMember that moves horizontally against the biasing force39Latch rod to interlock with this tuning member33Guided to,AndMovable frame member32In a push-pull lock equipped with a movable stopper 38 incorporated therein, and a mechanism for unlocking a temporary lock for latch that eliminates the restriction of the movable frame member via the movable stopper,The urging means 40B is attached to the left and right movable blocks 40a, 40a of the lock box 6B with reference to the receiving piece 39c protruding from the synchronizing member 39, and in the direction in which these movable blocks are pressed against the receiving piece 39c. It consists of left and right springs 20, 40b,Also,Front plate 7 of the lock boxThe front plate side movable block restricting member 8B is rotatably provided between the front plate side movable block 40a and the left front plate side movable block 40a. The protruding rear end 8b of the restricting member 8B is formed on the front plate side movable block. A fitting portion 55B formed on the vertical wall 39b corresponding to the tip portion;To have a sliding and non-sliding relationshipPositionedWhen the regulating member 8B is rotated by a predetermined amount from the front plate side, the advancement of the tuning member is performed via the front plate side movable block 40a.IndirectlyIt is blocked, and is switched from the original push / pull specification to the one-sided specification mode such as the pull specification.
[0012]
  The push-pull lock of the present invention is a lock box when the unlocking handle is pulled or pushed.6CEnergizing means by the driving force of the swinging piece on the handle side protruding inward40Member that moves horizontally against the biasing force39Latch rod to interlock with this tuning member33Guided to,AndMovable frame member32In a push-pull lock equipped with a movable stopper 38 incorporated therein, and a mechanism for unlocking a temporary lock for latch that eliminates the restriction of the movable frame member via the movable stopper,The urging means 40 is attached to the left and right movable blocks 40a, 40a of the lock box 6C with reference to the receiving piece 39c protruding from the tuning member 39, and the movable blocks are pressed in the direction in which they are pressed against the receiving piece 39c. It consists of left and right springs 40b, 40b,Also,In the lock box,Provided on the backFor tuning membersWhen the front plate 7C is fixed so that the protrusion restricting portion 8C faces the tuning member 39 or the front plate side movable block 40a, the front plate 7C directly or indirectly prevents the forward movement of the tuning member 39, and the original push- From the pull specification to the one-sided specification mode such as the pull specification, on the other hand, the protrusion restricting portion 8C of the front plate 7C is the tuning member 39 orOn the leftThe front plate 7C so as not to face the front plate side movable block 40a.The front plate 7C so that the top and bottom of theWhen fixed to the lock box 6C in the reverse state,For push / pull specificationsIt is characterized by switching.
[0013]
  Furthermore, the push-pull lock of the present invention can be used when the unlocking handle is pulled or pushed.6Energizing means by the driving force of the swinging piece on the handle side protruding inward40Member that moves horizontally against the biasing force39Latch rod to interlock with this tuning member33Guided to,AndMovable frame member32Movable stopper built in38In a push-pull lock provided with a mechanism for unlocking a temporary lock for latch that eliminates the restriction of the movable frame member via the movable stopper, the handle is attached to the lock box via the handle support seat 52 and the vertical axis 53. A mounting seat unit UN having a swing piece 51 pivotally supported by a support seat is mounted, and the mounting seat unit UN is mounted.The movement to the push side of the swinging piece 51 swinging together with the unlocking handle 50 is restricted to the handle support seat 52 or the swinging piece 51.When the restriction piece 61 is fixed,AboveSince the unlocking handle 50 does not move to the push side, the advancement of the tuning member 39 is indirectly blocked to switch from the original push / pull specification to the one-sided specification mode such as the pull specification,AboveWhen the restriction piece 61 is removed from the mounting seat unit UN,For push / pull specificationsIt is characterized by switching.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  The first embodiment of the present invention will be described together with the operation with reference to FIGS.
[0015]
  (1) Environmental members and features of the present invention
First, the environmental member and the features of the present invention will be briefly described. 1 is a door frame of an entrance / exit of a bedroom, toilet, entrance, etc., 2 is a receiving bracket having a strike, 3 is an edge of the door frame (directly including a strike), 4 is a horizontal pivot that moves the entrance / exit A door to be opened and closed (for example, an indoor door) 5 is a lock provided at the door end of the indoor door 4, which is a push-pull lock 5 in this embodiment. The lock box 6 of the push-pull lock 5 is provided with a rotation button 8 as an example of a regulating member with respect to the front plate 7 (which means the front or / and the mounting front plate). When 8 is rotated by a predetermined amount, the unlocking mode of the latch in the push-pull lock 5 (the mode in which the temporarily locked state is set to the unlocked state) is switched to either the push-pull specification or the pull specification. Yes.
[0016]
  (2) Structure of lock box
  The configuration of the lock box 6 will be described with reference to FIG. First, the lock box 6 includes a case body 6a and a rectangular case lid 6b that closes one side opening of the case body 6a. The case body 6 a has a front plate 7. Here, the “front plate 7” means a front plate or / and front of the case body 6a. When the front plate and the front are separated, the two are usually not shown.IndicationUnion through a fastener that does not.
[0017]
  Now, a rectangular latch window 9 is formed at the center of the front plate 7. In this embodiment, the tip 8a of the rotary button 8 described above is fitted in a lower part of the latch window 9. A mating circular through hole 10 is formed. The lock box 6 has a wide side wall 11 that intersects the front plate 7, a lower wall 12, an upper wall 13, and a rear wall 14 that intersects the upper and lower walls.
A guide portion and a swing piece for guiding a plurality of members incorporated in the lock box 6 are provided on the wide side wall 11 (here, the case body 6a will be described as an example) facing the case lid 6b. An entering window, a pivotal support hole, a shaft mounting hole, and the like are formed at required positions.
[0018]
  For example, 15 is a pair of left and right first guide portions (a laterally long opening, a laterally long groove, a laterally long protrusion, etc.) formed at the lowermost central portion along the lower wall 12, and 16 is a swing piece 51 on the handle side. A swing piece window 17 into which the sandwiched portion 51b enters, and a pivot support hole 17 for an engagement holding member (vertical swing plate, swing rod, etc.). In addition, although the large and small window is formed in the wide side wall 11, since it is not related to the specific requirements of this invention, it omits.
[0019]
  (3) Main components of the lock
  Since the present invention includes the basic structure of the above-described push-pull type latch lock, the terms and symbols described in JP-A-2002-129796 are used as much as possible in the meaning of comparison. .
[0020]
  Now, in the lock box (casing) 6, several members constituting a temporary locking / unlocking mechanism of the latch are incorporated. For example, the movable frame member 32, the latch rod 33 that guides the movable frame member, the latch support block 34, the latch 35, the lock pin 36 that directly locks the latch, the movable frame member spring member 37, and the inner spring 48 on the movable frame member Movable stopper 38 incorporated together, frame-shaped synchronization member 39 that slides in the horizontal direction by the driving force of the swing piece on the handle side, a pair of left and right tuning member urging means 40, 40, and plate-shaped engagement holding A member 41, an annular latch support seat 49 formed of a synthetic resin material, and the like are provided. The lock box 6 is also provided with a lock member 43 for locking and a cam 44 with a square hole which are not related to the specific requirements of the present invention, and the description thereof is omitted.
[0021]
  (4) Main components for latch temporary locking
“Moving frame member 32”... The moving frame member 32 is disposed at an intermediate position in the lock box 6 so as to be horizontally movable via a latch rod 33. That is, the movable frame member 32 is guided by the latch rod 33 and can move forward and backward in the horizontal direction. As shown in FIG. 3, the movable frame member 32 is formed in a toy block shape in this embodiment.
The movable frame member 32 and the latch rod 33 associated therewith will be described with reference to FIG. Reference numeral 32a denotes a storage portion having a rectangular parallelepiped or a cubic cavity in which the movable stopper 38 is housed. One horizontal guide for guiding the large diameter portion 33a on the rear end side of the latch rod 33 is provided on the rear wall portion of the storage portion 32a. A through hole 32b is formed.
[0022]
  A receiving portion 32c projects in a block shape from the front wall portion of the storage portion 32a. The front surface of the receiving portion 32c comes into contact with a rear end surface of a pin-shaped latch lock member 36 described later. The receiving portion 32c is formed with another horizontal guide through hole 32d for guiding the small diameter portion 33b on the tip end side of the latch rod 33. The two horizontal guide through holes 32b and 32d are located on the coaxial line. The inner wall surface or both end surfaces of the lower wall portion of the storage portion 32a have a function of guiding the downward U-shaped movable stopper 38.
[0023]
  “Latch rod 33”... The latch rod 33 is horizontally inserted into the front and rear horizontal guide through holes 32b and 32d of the movable frame member 32 and is rotatable about the axis.
In this embodiment, the latch rod 33 engages with the movable stopper 38 so as to reliably prevent the latch from retreating during temporary locking. That is, the latch lock pin 36 retreats following the horizontal rotation of the latch 35, and the retraction of the movable frame member 32 pushed by the latch lock pin ensures the temporary locking state by the engagement relationship with the movable stopper 38. And This is different from the conventional latch lock described in the publication.
[0024]
  “Latch Support Block 34”: As shown in FIG. 4, the latch support block 34 is fixedly provided at the small-diameter end of the latch rod 33 passing through the horizontal guide through hole 32d in front of the movable frame member 32. ing. That is, the support block 34 and the latch rod 33 are fixedly coupled.
[0025]
  Thus, the latch support block 34 includes a disk-shaped rod coupling portion 34a that faces the front surface of the receiving portion 32c of the movable frame member 32, and a latch lock member that is formed to project radially from the front surface of the rod coupling portion 34a. As an example, it has a guide portion 34b for guiding a lock pin 36, and a latch bearing portion 34c formed to project from the guide portion 34b like a fingertip.
[0026]
  A lock pin 36 is fitted and inserted into the guide portion 34b. A latch 35 is pivotally attached to the bearing portion 34c via a vertical pivot pin 47.
Latch 35 ... The type of latch 35 is not limited. There are various types of latches, such as those that retreat while rotating, those that simply retreat, and those that integrally have a latch rod. The latch of this embodiment rotates a predetermined amount (in this case, meaning to rotate a predetermined amount).
[0027]
  Now, the latch 35 is fitted into the latch support seat 49 having a rectangular opening in a penetrating state. This is different from the latch lock described in the publication. By providing the latch support seat 49, the latch 35 can be stably supported. The latch 35 protrudes outward from the latch window of the front plate 7 of the latch lock box 6 and is connected to the latch support block 34 via a pivot pin 47. Opposing wall-like rear end portions 35b and 35b connected to the front end portion 35a of the latch 35 have small projection-like latch holding portions 42 and 42 on the outer wall surfaces, respectively. A space 35c between the opposite wall-shaped rear end portions 35b and 35b is a space where the bearing portion 34c of the latch support block 34 enters. In the present embodiment, the front end surface 36a of the lock pin 36 abuts on a part of the vertical edge 35d that forms the storage space 35c.
[0028]
  “Lock Pin 36” As described above, the rear end surface 36 b of the lock pin 36 abuts on the front surface of the receiving portion 32 c of the movable frame member 32. In other words, the latch lock member 36 is assembled to a support block 34 as an example of a bearing member so as to be movable in the axial direction of the latch rod 33, and the front end edge of the latch lock member 36 is brought into contact with the rear end edge of the latch 35. The latch 35 can be locked at a non-reversible locking position.
[0029]
  “Integral configuration of each member” In this embodiment, as shown in FIGS. 5 and 6, a latch 35, a latch support block 34 that pivotally supports the latch 35, and a latch connected to the latch support block 34 The rod 33 and the movable frame member 32 slidably provided on the latch rod 33 are integrally configured as one latch unit. Therefore, incorporation into the lock box 6 is easy.
[0030]
  “Spring member 37”... The spring member 37 that directly biases the movable frame member 32 constantly biases the movable frame member 32 and the latch lock member 36 in the direction in which the latch 35 is held at the locking position. Therefore, the spring member 37 has a function as a latch spring, and the front end portion thereof is wound around the rear end portion of the latch rod 33 and is pressed against the outer wall surface of the rear wall of the storage portion 32a of the movable frame member 32. On the other hand, the other end is in pressure contact with the inner wall surface of the rear wall 14 of the case body 6a.
[0031]
  “Moving stopper 38”... The moving stopper 38 is formed by bending a metal plate material into a U-shape. The movable stopper 38 is housed in the storage portion 32a of the movable frame member 32 so as to straddle the latch rod 33, and is guided to be movable up and down on the inner wall surface of the storage portion 32a.
[0032]
  The reason why the movable stopper 38 is an example of a temporary locking piece will be described with reference to FIG. In this embodiment, the movable stopper 38 is always engaged so as to engage with the inner surface of the rear end side large-diameter portion 33a of the latch rod 33 by an internal spring 48 incorporated in the storage portion 32a of the movable frame member 32. It is biased in the combined (downward) direction.
[0033]
  In one of FIGS. 7A and 7B, the movable stopper 38 slides up against the spring force of the internal spring 48 and is separated from the flange-shaped inner surface of the rear end side large-diameter portion 33 a of the latch rod 33, so-called temporary locking (engagement). It is the schematic of the state which cancelled | released. In this case, when the lock pin 36 moves in the direction of arrow A (in the direction of the rear wall of the case body) by the rotation of the latch 35, the movable frame member 32 has no obstacle so to speak, the latch rod 33 It moves in the direction of arrow A while being guided by.
[0034]
  On the other hand, in the other of FIGS. 7A and 7B, the movable stopper 38 slides down by the spring force of the internal spring 48 and enters the inner surface of the rear end side large-diameter portion 33a of the latch rod 33, so-called temporary locking (engagement). It is the schematic of a state. At this time, even if the movable frame member 32 is pushed in the direction of arrow A (in the direction of the rear wall of the case body) by the lock pin 36, the movable stopper 38 becomes an obstacle, so the movable frame member 32 is attached to the latch rod 33. It is guided and cannot move in the direction of arrow A.
[0035]
  Therefore, the latch 35 cannot be rotated. Therefore, the movable stopper 38 corresponds to a so-called temporary locking piece because it restricts the movement of the movable frame member 32 and locks the latch 35 in the temporary locking state.
[0036]
  (5) Main components of the unlocking mechanism of the latch temporary lock
  Here, the inner and outer unlocking handles 50 will be described. As shown in FIG. 8, the inner / outer unlocking handle 50 is fixedly attached to each shaft portion 51a at the outer end of the swing piece 51 (here, for the sake of convenience of explanation, one of the unlocking handles 50 is used. Shows handle, swing piece, etc.). The inner end portion 51b of the swing piece 51 is formed so as to be sandwiched, and the inner end portion 51b engages with the engagement column 39a of the tuning member 39 as indicated by an arrow in FIG.
[0037]
  "Oscillating piece 51": The oscillating piece 51 is connected to the inner end portion of the lock box 6 through a handle supporting seat 52 attached to the indoor side and the outdoor side of the door 1, and from the oscillating piece window 16 of the lock box 6. 51b is arranged to protrude. The swing piece 51 can swing left and right via a vertical axis 53 fixed to the handle support seat 52.
[0038]
  Therefore, when the unlocking handle 50 is operated in the push (for example, pushing from the outdoor side) or pull (for example, pulling from the indoor side) direction as indicated by the arrow in FIG. 8, the swing piece 51 swings to the left and right. .
[0039]
  “Synchronizing member 39”: The frame-shaped synchronizing member 39 is urged by the driving force of the swinging piece 51 on the unlocking handle side when the unlocking handle 50 as the operating member is pushed or pulled. Move horizontally against 40 biasing forces.
[0040]
  As a result, the above-described movable stopper 38 rises through the plate-like engagement holding member 41 and against the spring force of the internal spring 48, so that the latch rod 33 is released from the restriction of the movable stopper 38 (engagement). Is canceled). Although the tuning member 39 of the present embodiment is formed in a horizontally long end face inverted U shape, an upper wall 39c and a lower wall intersecting the vertical wall 39b at the center are provided to provide a guide function, an engagement function, and the like. The wall 39d extends to the vicinity of the rear wall 14 of the lock box 6.
[0041]
  By the way, the vertical wall 39b is formed with a fitting portion (vertically long hole, notch or the like) 55, and the fitting portion 55 has a large-diameter shape of a regulating member (for example, a rotary button) 8 shown in FIG. The projecting rear end portion 8b connected to the stopper portion 18 is inserted depending on the rotation position. A receiving piece 39e for biasing means protrudes downward from the lower wall 39d.
“Biasing means 40, 40”... The biasing means 40 can automatically return the movable stopper 38 to a neutral position where the movable stopper 38 is locked to the inner surface (engagement portion) of the large-diameter portion 33a of the latch rod 33. The tuning member 39 is biased.
[0042]
  Thus, the biasing means 40, 40 are respectively guided by the first guide portions 15, 15 of the lock box 6, and a pair of left and right movable blocks 40a, 40a with reference to the receiving piece 39e of the tuning member 39, The movable blocks 40a and 40a are composed of a pair of left and right springs 40b and 40b that urge the movable blocks 40a and 40a in a direction in which they are pressed against the receiving piece 39e.
[0043]
  "Engagement holding member 41" ... One end of the plate-like engagement holding member 41 is supported by the lock box 6 so as to be swingable in the moving direction of the movable stopper 38, and the lower end of the movable stopper 38 is supported at the rocking end. A cylindrical engagement holding portion 41a that is in contact with the portion is formed.
[0044]
  When the synchronizing member 39 moves left or right against the urging force of the urging means 40 by the driving force of the swing piece 51, the engagement holding member 41 uses the pivot hole 17 of the lock box 6 as a fulcrum. The engagement holding portion 41a is moved upward, whereby the movable stopper 38 is raised, and the engagement relationship of the movable stopper 38 with respect to the latch rod 33 is canceled (unlocking).
[0045]
  On the other hand, when the synchronization member 39 is returned to the neutral position by the biasing means 40, the engagement holding portion 41a is engaged with the engagement recess 66 formed in the upper wall 39c of the synchronization member 39. As a result, the movable stopper 38 is engaged. Descends and engages the latch rod 33.
[0046]
  Therefore, in this embodiment, when the unlocking handle 50 is pushed or pulled, the tuning member 39 is moved horizontally, the engagement holding member 41 is swung up and down, and the movable stopper 38 is moved in conjunction therewith. The movable frame member 32 and the like can be temporarily locked or temporarily locked.
[0047]
  In the above configuration, when the tip of a driver (not shown) is inserted into the groove 19 of the projecting tip 8a of the rotary button 8 from the front of the front plate 7 of the lock box 6 and the rotary button 8 is rotated by a predetermined amount, it is synchronized. Since one of the members 39 is regulated or released, the lock 5 is switched to the push / pull specification or the pull specification (or push specification).
[0048]
  First, FIG. 11 shows a case where the groove 19 of the rotation button 8 is in a vertical state. In this vertical state, the vertically long projecting rear end 8b of the rotary button 8 is also in the vertical state. That is, the protruding rear end 8b and the synchronization member 39 are in a sliding pair (sliding relationship) so that the synchronization member 39 can move toward the front plate 7 of the lock box 6.
[0049]
  Therefore, the tuning member 39 can be moved in the direction of the front plate 7 by the driving force of the swing piece 51, so that the unlocking handle 50 can be pushed (pressed). Therefore, when the push / pull lock 5 is in the form of FIG. 11, the unlocking handle (regardless of the inner and outer unlocking handles) is “pulled (pulled)” or “pushed (pressed)”. be able to. In this case, the push-pull lock 5 has a push-pull specification in the original sense.
[0050]
  When the unlocking handle with the unlocking handle in this way is “pulled” or “pushed”, the tuning member 39 moves to the left or right, and as a result, the latch temporary locking piece 38 is locked. Move in the unlocking (unlocking) direction.
[0051]
  Next, FIG. 12 shows a case where the groove 19 of the rotation button 8 is in a horizontal state. In this horizontal state, the rear end 8b of the rotary button 8 is also in the horizontal state. That is, the projecting rear end 8b and the synchronization member 39 are non-slipping pair (non-sliding relationship) so that the synchronization member 39 cannot move toward the front plate 7 of the lock box 6.
[0052]
  Therefore, since the tuning member 39 cannot move in the direction of the front plate 7 by the driving force of the swing piece 51, the unlocking handle 50 cannot be pushed (pressed). Therefore, in the case of the embodiment of FIG. 12, the push-pull lock 5 cannot be “pushed” with respect to the unlocking handle, and therefore has only a pull specification.
[0053]
  As described above, the push-pull lock 5 of the first embodiment can be easily converted from a push-pull specification to a one-sided specification (for example, a pull specification) simply by rotating the rotation button 8 with a screwdriver. . Of course, the reverse is also true.
[0054]
【Example】
  First, in the first embodiment, the shape of the protruding rear end 8b of the rotary button 8 can be freely changed in design such as an elliptical shape or a rhombus shape in addition to the vertically long shape. Further, a support spring 20 for the rotation button may be wound around the protruding rear end portion 8 b of the rotation button 8.
[0055]
  Next, in this section, an example different from the present embodiment (first example) will be described. Since each embodiment has the same main purpose, the same or similar (same function) parts as those in the first embodiment are denoted by the same or similar reference numerals in the description of each embodiment. Description to be omitted is omitted.
[0056]
  In the second embodiment shown in FIG. 13, the main difference from the first embodiment is that the regulating member 8A that prevents the synchronization member 39 from moving forward (front plate side, left side) can be inserted into and removed from the lock box 6A. It is fixed.
[0057]
  In other words, the push-pull lock 5A of the second embodiment has a plurality of mounting holes 10A in the case body 6a (the front plate 7A or / and the wide side wall 11A) of the lock box 6A or a portion near the front plate of the case lid 6b. , 10A, and a regulating member 8A is provided in the lock box 6A through at least one of the mounting holes 10A so as to be removable so that the synchronization member 39 does not move toward the front plate 7A.
[0058]
  Accordingly, when the regulating member 8A is fixed to the front plate 7A, the wide side wall 11A, or also the case lid 6b, the advancement of the tuning member 39 is prevented. Switch to the specification mode. As an example of the regulating member 8A, a fixture (for example, a screw) is used.
Therefore, for example, when the regulating member 8A is inserted into the female screw 10A and fixed to the front plate 7A, only “pull operation” is performed, and when the regulating member 8A is removed from the front plate 7A, “push operation is also possible”. The regulating member 8A may be a rod-shaped body, a plate-shaped body, a block-shaped body, or the like, and the form is not limited to a screw.
[0059]
  In the second embodiment, the regulating member 8A directly prevents the advancement of the tuning member 39. However, in order to “indirectly prevent the advancement of the tuning member 39” as in the third embodiment to be described later, for example, A rod-like body such as a screw or a pin may be provided in the lowermost part of the front plate 7A so as to be able to be removed, and the movement of the front plate side movable block 40a of the urging means 40A may be prevented (when the configuration is replaced in this way) Is of course an equivalent range).
[0060]
  In the third embodiment shown in FIGS. 14 and 15, the main difference from the first embodiment is the same configuration as that of the first embodiment, which indirectly prevents the advancement of the tuning member 39. (This is also an example in which the configuration is replaced).
[0061]
  That is, in the first embodiment, the advancement of the tuning member 39 is directly prevented by the rotation button 8, but in the push-pull lock 5B of the third embodiment, the outermost plate 7B of the lock box 6B is the outermost. At the bottom,Provided with support spring 20A rotation button 8B is attached to the support through-hole 10B so that the projecting rear end 8b and the front plate side movable block 40a of the biasing means 40B are in a sliding fit and non-sliding relationship, and the turning is performed from the front plate side. When the button 8B is rotated by a predetermined amount, the advancement of the tuning member 39 is blocked via the front plate side movable block 40a, and the original push / pull specification is switched to the one-sided specification mode such as the pull specification.
[0062]
  Reference numeral 55B denotes a fitting portion (for example, a vertically long hole) formed on the vertical wall of the front plate side movable block 40a. The spring 40b for urging the front plate side movable block 40a isInstead of the support spring 20 wound around the protruding rear end 8b (see FIG. 14). Therefore, the front plate side movable block 40a and the support spring 20 constitute the left biasing means B.
[0063]
  In the fourth embodiment shown in FIGS. 16 to 18, the main difference from the first embodiment is that the front plate 8C is integrally provided with a protrusion (block, bar, plate or other restricting protrusion). This is that the forward movement of the tuning member 39 is indirectly prevented (this is also an example in which the configuration is replaced).
[0064]
  The protrusion restricting portion 8C formed to protrude from the back surface of the front plate 7C faces the tuning member 39, but may of course face the front plate side movable block 40a.
[0065]
  Thus, in the push-pull lock 5C of the fourth embodiment, the front plate 7C having the protrusion restricting portion 8C is attached to the lock box 6C so that the synchronization member 39 does not move to the front plate 7C side, and the protrusion protrudes into the lock box. When the front plate 7C is fixed so that the restricting portion 8C faces the tuning member 39 or the front plate side movable block 40a, the front plate 7C directly or indirectly prevents the tuning member 39 from moving forward, and the original push-pull Switch from specification to single-sided specification such as pull specification, while the front plate 7C is reversed(Here, the front plate 7C is not turned to the vertical state and the back side is not the front side, but the upper end and the lower end are reversed.)When fixed to the lock box 6C, the one-sided specification mode is converted to the push-pull specification.
[0066]
  In the fifth embodiment shown in FIGS. 19 to 21, the main difference from the first embodiment is that a regulating piece 61 is provided not on the lock box but on the mounting seat unit UN fixed to the wall surface of the door 4. That is.
[0067]
  That is, a mounting seat unit UN having a handle support seat 52 via the door 4 and a swing piece 51 pivotally supported by the handle support seat 52 via the vertical axis 53 is mounted on the lock box 6. When the restriction piece 61 is fixed to the UN via the fixing tool 60, the unlocking handle 50 does not move to the push side, so that the advancement of the tuning member 39 is indirectly blocked, and the original push / pull specification is not achieved. On the other hand, when the regulation piece 61 is removed from the mounting seat unit UN, the one-sided specification mode is changed to the push-pull specification to the pull-type specification.
[0068]
  This idea is to regulate the movement of the unlocking handle for a certain part when the outer end (square axis) 51a of the swinging piece 51 is structured to move freely left and right with the vertical axis 53 as a fulcrum. By attaching to the handle support seat 52 or the shaft portion of the handle so that, for example, the outer end portion (square shaft) 51a does not move to the hanging side of the door 4, the push operation is killed and only the pull operation is performed. However, it is the same as the main purpose of the first embodiment in that the advancement of the tuning member is indirectly blocked.
[0069]
  By the way, in this embodiment, as an example of the handle support seat 52, a round seat having mounting screw holes 62, 62 on the left and right is used. A recess 64 for the restricting piece 61 is appropriately formed around the screw holes 62, 62, and a through small hole portion 65 that coincides with one screw hole 62, and a vertically long shape that is continuous with the through small hole portion 65. A restricting piece 61 having a restricting protrusion 66 is fixedly attached to the recess 64 via a fixing tool 60. An angular hole 63 is formed at the center of the handle support seat 52. Although the present invention has been described mainly with reference to the conversion example between the push-pull specification and the pull specification, from the standpoint of a person skilled in the art, it is equivalent to changing to the mutual conversion between the push-pull specification and the push specification. It is a range.
[0070]
【The invention's effect】
  As is clear from the above description, the present invention has the following effects.
(1) The user can freely select the push-pull specification and the one-sided specification (pull specification or push specification) in consideration of the installation location of the building door.
(2) In the above (1), in the case of the first embodiment, for example, the push-pull specification is changed to the one-sided specification by simply rotating the regulating member visible from the front plate of the lock box by a predetermined amount. Or, it is possible to switch from the single-sided specification to the original push-pull specification. In the second to fifth embodiments, the same purpose as that of the first embodiment can be achieved by appropriately providing the restricting member, the protrusion restricting portion, or the restricting piece.
(3) When the door is closed, the movable spar as a temporary locking piece for latching is engaged with the latch rod in a locked state, so that the movement of the movable frame member to the latch can be reliably prevented.
(4) Since the latch 35, the latch support block 34, the latch rod 33, and the movable frame member 32 are integrally configured, the incorporation into the lock box 6 is easy.
[Brief description of the drawings]
1 to 12 are schematic explanatory views showing a first embodiment of the present invention. FIG. 13 is an explanatory view showing a second embodiment of the present invention. 14 and 15 are schematic explanatory views showing a third embodiment of the present invention. 16 to 18 are schematic explanatory views showing a fourth embodiment of the present invention. 19 to 21 are schematic explanatory views showing a fifth embodiment of the present invention.
FIG. 1 is a schematic explanatory view showing an internal structure in which a part of a cover plate, unrelated members, etc. are omitted.
FIG. 2 is a schematic explanatory diagram of a lock box in which a part of a lid plate, unrelated members, etc. are omitted.
FIG. 3 is an exploded perspective view showing a relationship between a movable frame member and a rod.
FIG. 4 is a schematic explanatory diagram of a latch, a lock pin, a support block, a rod, a movable frame member, and the like.
FIG. 5 is a schematic explanatory diagram of a latch unit (latch, lock pin, support block, etc.).
6 is a schematic cross-sectional view taken along line 6-6 of FIG.
FIG. 7 is a schematic explanatory view showing an engagement relationship among a movable frame member, a movable stopper, and a rod.
FIG. 8 is a perspective view of a mounting seat unit.
FIG. 9 is an explanatory view showing the relationship between the tuning member and the swing piece of the mounting seat unit.
FIG. 10 is an explanatory view showing an example of a regulating member.
FIG. 11 is a schematic explanatory diagram when a push operation is possible.
FIG. 12 is a schematic explanatory diagram of a case where a regulating member (rotation button) is rotated to change the specification of the lock (not pushable).
FIG. 13 is a schematic explanatory view similar to FIG. 1 showing a second embodiment.
FIG. 14 is a schematic explanatory view similar to FIG. 1 showing a third embodiment.
FIG. 15 is a perspective view showing a relationship between a regulating member (rotating button) and a regulated member.
FIG. 16 is a schematic explanatory view similar to FIG. 1 showing a fourth embodiment.
FIG. 17 is a front view of the front plate.
18 is a cross-sectional view taken along line 18-18 in FIG. 17;
FIG. 19 is a schematic explanatory view of the mounting seat unit as viewed from above.
FIG. 20 is a schematic explanatory view of the mounting seat unit as seen from the front.
FIG. 21 is a schematic sectional explanatory view of a mounting seat unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Door frame, 2 ... Receiving bracket, 3 ... Edge, 4 ... Door, 5A, 5B, 5C ... Lock (push / pull lock), 6, 6A, 6B, 6C ... Lock box, 6a ... Case body, 6b ... Case lid, 7, 7A, 7B, 7C ... front plate, 8, 8A, 8B, 8C ... regulating member (rotating button, projection regulating part, etc.), 8a ... tip part, 8b ... projecting rear end part, 18 ... stopper Part, 19 ... groove, 9 ... latch window, 10, 10A ... through hole, 11, 11A ... wide side wall, 20 ... support spring, 32 ... movable frame member, 32a ... storage part, 32b, 32d ... horizontal guide through hole, 32c ... receiving part, 33 ... latch rod, 33a ... large diameter part, 33b ... small diameter part, 34 ... support block, 34a ... rod connecting part, 34b ... guide part, 34c ... latch bearing part, 35 ... latch, 35a ... tip Part, 35b ... rear end part, 35c ... storage space, 35d ... vertical edge part, 3 ... Latch lock member, 37 ... Spring member for movable frame member, 38 ... movable stopper, 39 ... tuning member, 39a ... engaging column, 39b ... vertical wall, 39c ... upper wall, 55, 55B ... fitting portion, 56 ... Engaging recess, 40, 40A, 40B ... biasing means for tuning member, 40a ... movable block, 40b ... spring, 41 ... engagement holding member, 48 ... internal spring for movable stopper, 49 ... latch support seat, 50 ... Unlocking handle 51... Oscillating piece 51 a. Outer end portion 51 b. Inner end portion 52. Handle supporting seat 53. Vertical axis UN UN mounting seat unit 60. 62: mounting screw hole, 63: square shaft hole.

Claims

When the unlocking handle is pulled or pushed, the tuning member 39 moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box 6 and against the biasing force of the biasing means 40 , is guided by the latch rod 33 to work on the member, and a movable stopper 38 which is incorporated in the movable frame member 32, the unlocking mechanism latching the temporary locking to eliminate the restriction of the movable frame member through the movable stopper in the push-pull lock with, rotatably regulating member 8 for the tuning member between the vertical wall 39b corresponding to the tip end portion of the front plate 7 and the tuning member 39 of the lock box, this The protruding rear end portion 8b of the regulating member 8 for the tuning member is positioned so as to have a sliding fit and a non-sliding fit relationship with the fitting portion 55 formed on the vertical wall 39b, and the regulating member 8 from the front plate side. And turn the Advancement of the timber 39 is prevented, the push-pull lock, characterized in that switching on one side specifications such a manner that the pull specifications from inherent push-pull design.

2. The push-pull lock according to claim 1, wherein the restricting member 8 is a rotary button having a groove 10 for a driver at a tip portion.

In claim 1, the movable stopper 38 is always urged so as to engage with the large-diameter portion 33a on the rear end side of the latch rod by the spring force of the internal spring 48 incorporated in the movable frame member 32 . In this manner, the push-pull lock is characterized in that the backward movement of the movable frame member 32 is restricted.

2. The movable frame member 32 guided by the latch rod 33, the latch support block 34 connected to the tip of the latch rod 33, and the guide portion 34b of the latch support block 34 in a penetrating state. A push-pull lock, wherein the lock pin to be fitted and the latch 35 pivotally supported by the bearing portion 34c of the latch support block 34 are integrally configured as a latch unit.

2. The push-pull lock according to claim 1, wherein an annular latch support seat 49 is fitted into the latch window 9 formed on the front plate.

When the unlocking handle is pulled or pushed, the tuning member 39 moves horizontally by the driving force of the swing piece on the handle side protruding into the lock box 6A and against the biasing force of the biasing means 40A . is guided by the latch rod 33 to work on the member, and a movable stopper 38 which is incorporated in the movable frame member 32, the unlocking mechanism latching the temporary locking to eliminate the restriction of the movable frame member through the movable stopper In the provided push-pull lock, a restriction member 8A is provided on the lock box 6A so as to be removable so that the tuning member 39 does not move directly or indirectly to the front plate 7A side. A push-pull lock characterized in that when 8A is fixed, the tuning member 39 is prevented from moving forward and the original push-pull specification is switched to a one-sided specification mode such as a pull specification.

When the unlocking handle is pulled or pushed, the tuning member 39 moves horizontally by the driving force of the swing piece on the handle side protruding into the lock box 6B and against the biasing force of the biasing means 40B . is guided by the latch rod 33 to work on the member, and a movable stopper 38 which is incorporated in the movable frame member 32, the unlocking mechanism latching the temporary locking to eliminate the restriction of the movable frame member through the movable stopper In the provided push-pull lock, the urging means 40B includes the left and right movable blocks 40a, 40a of the lock box 6B on the basis of the receiving piece 39c protruding from the tuning member 39, and these movable blocks. consists of a right and left spring 20,40b that each biased in a direction which presses the receiving piece 39c, also, the front plate side friendly between the front plate side movable block 40a of the left and front plate 7 of the lock box A restricting member 8B for the moving block is rotatably provided, and the protruding rear end 8b of the restricting member 8B is slidably fitted with a fitting portion 55B formed on the vertical wall 39b corresponding to the tip of the front plate side movable block. and Hisuri positioned so fitted a relationship, when the predetermined amount of rotation of the regulating member 8B from the front plate side, forward of said tuning member is indirectly prevented through the front plate side movable block 40a, originally A push-pull tablet that is switched from a standard push-pull specification to a one-sided specification mode such as a pull specification.

When unlocking handle pull or push, the driving force of the handle-side swinging piece projecting into the lock box 6C, and the tuning member 39 which horizontally moves against the urging force of the urging means 40, the tuning is guided by the latch rod 33 to work on the member, and a movable stopper 38 which is incorporated in the movable frame member 32, the unlocking mechanism latching the temporary locking to eliminate the restriction of the movable frame member through the movable stopper In the provided push-pull lock, the biasing means 40 includes the left and right movable blocks 40a, 40a of the lock box 6C on the basis of the receiving piece 39c protruding from the tuning member 39, and the movable blocks. left and right spring 40b for urging respectively in the direction of pressure contact with the receiving piece 39c, composed of a 40b, also the lock box, regulating projection 8C for tuning member provided on the back surface the tuning member 39 walk When the front plate 7C is fixed so as to face the front plate side movable block 40a, the front plate 7C directly or indirectly prevents the forward movement of the tuning member 39, so that the original push / pull specification is changed to the pull specification. The front plate 7C is switched so that the upper and lower sides of the front plate 7C are switched so that the protrusion restricting portion 8C of the front plate 7C does not face the tuning member 39 or the left front plate side movable block 40a. A push-pull lock that switches from a one-sided specification mode to a push-pull specification when fixed in the lock box 6C in an inverted state.

When the unlocking handle is pulled or pushed, the tuning member 39 moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box 6 and against the biasing force of the biasing means 40 , is guided by the latch rod 33 to work on the member, and a movable stopper 38 which is incorporated in the movable frame member 32, the unlocking mechanism latching the temporary locking to eliminate the restriction of the movable frame member through the movable stopper In the push-pull lock provided, a mounting seat unit UN having a handle support seat 52 and a swing piece 51 pivotally supported by the handle support seat via a longitudinal axis 53 is mounted on the lock box, and the mounting seat the handle support seat 52 or the rocking piece 51 of the unit UN, when fixing the restricting piece 61 for restricting the movement of the push side of the swinging Dohen 51 which swings together with the unlocking handle 50, for the unlocking C $ 50 is switched to single-sided specification such a manner that the forward tuning member 39 is indirectly prevented by pull specifications from inherent push pull specification to not move the push side, whereas, the restricting piece 61 A push-pull lock that is switched from a one-sided specification mode to a push-pull specification when removed from the mounting seat unit UN.

In claim 9, the restricting piece 61 is connected to the through hole portion 65 fitted in the recess 64 formed around the screw hole 62 of the handle support seat 52, and the through hole portion 65. In addition, the push-pull lock has a vertically long restricting projection 66 that restricts the movement of the swing piece 51 toward the push side .