JP2004225384A

JP2004225384A - Push/pull lock

Info

Publication number: JP2004225384A
Application number: JP2003014745A
Authority: JP
Inventors: Hideyuki Tajima; 田島英幸; Yoshikazu Kawamata; 川俣由和
Original assignee: Miwa Lock KK; Miwa Lock Co Ltd
Current assignee: Miwa Lock KK; Miwa Lock Co Ltd
Priority date: 2003-01-23
Filing date: 2003-01-23
Publication date: 2004-08-12
Anticipated expiration: 2023-01-23
Also published as: JP4173016B2

Abstract

<P>PROBLEM TO BE SOLVED: To enable free selection between push/pull specifications and one-side specifications (pull specifications or push specifications) in a user's consideration of a place for mounting a door of a building. <P>SOLUTION: A push/pull lock is equipped with: a synchronization member which is horizontally moved by a driving force of an oscillating piece on a handle side, protruded in a lock case, and against an urging force of an urging means, when a handle for unlocking is pulled or pushed; a movable stopper which built in a movable frame member to be guided by a latch rod in synchronization with the synchronization member; and an unlocking mechanism for temporary locking for a latch, which eliminates the regulation of the movable frame member via the movable stopper. In the push/pull lock, a regulation member 8 is provided on the front plate of the lock case in such a manner that a sliding-fitting or non-sliding-fitting relationship is established between a protrusive back end 8b and the synchronization member 39, so that the advance of the synchronization member can be inhibited when the regulation member 8 is turned from the side of the front plate by a prescribed amount, and so that switching can be performed from a mode of the original push/pull specifications to a mode of the one-side specifications such as the pull specifications. <P>COPYRIGHT: (C)2004,JPO&NCIPI

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、付勢手段の付勢力に抗して水平移動する同調部材、この同調部材に連動するようにラッチロッドに案内される可動枠部材内に組み込まれた可動ストッパ、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、前記錠箱の前板に、突出後端部８ｂと前記同調部材３９とが摺嵌及び非摺嵌関係になるように規制部材８を設け、前記前板側から該規制部材を所定量回動すると、前記同調部材の前進が阻止され、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、付勢手段の付勢力に抗して水平移動する同調部材、この同調部材に連動するようにラッチロッドに案内される可動枠部材内に組み込まれた可動ストッパ、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、付勢手段の付勢力に抗して水平移動する同調部材、この同調部材に連動するようにラッチロッドに案内される可動枠部材内に組み込まれた可動ストッパ、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６Ｂの前板７Ｂに、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規制部材８Ｂを設け、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、付勢手段の付勢力に抗して水平移動する同調部材、この同調部材に連動するようにラッチロッドに案内される可動枠部材内に組み込まれた可動ストッパ、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、前記錠箱に裏面に設けられた突出規制部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或いは前板側可動ブロック４０ａと対面しないように該前板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・プル仕様から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、付勢手段の付勢力に抗して水平移動する同調部材、この同調部材に連動するようにラッチロッドに案内される可動枠部材内に組み込まれた可動ストッパ、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、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は不要なので抜き取ってある。
【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]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a push-pull lock, and in particular, when an inner or outer unlocking handle is pulled or pushed when a door is closed, a temporary locking piece (a movable stopper biased by a spring) for a latch is used for a latch. The present invention relates to a push-pull lock that is operated in a direction of disengagement by a temporary unlocking mechanism.
[0002]
[Prior art]
As a conventional technique, JP-A-2002-129796 can be cited. This publication describes an embodiment (the invention according to claims 4 and 5) of a latch lock used for locking a door. The inner and outer unlocking lever handles of this embodiment can be pushed (pulled) or pulled (pulled) on the inner and outer wall surfaces of the door, respectively.
[0003]
Therefore, for convenience, basic members incorporated in the lock box of the latch lock will be described using terms and reference numerals described in the publication.
[0004]
In the casing (lock box) 31, for example, when an unlocking inner handle that can be operated by push and pull is operated, the driving force of the swinging piece on the handle side causes the driving force of the swinging piece on the handle side (the front side or the rear wall side of the case) ), And when the tuning member 39 moves horizontally, the engagement is released via a plate-shaped engagement holding member 41 disposed above the tuning member. The movable stopper 38 is lifted up against the spring force of the interior spring 48 in the direction (upward direction), and the restriction is released by the movable stopper 38. And a frame-shaped movable frame member 32 that retreats via the latch rod 33 to the rear wall side of the lock box 6 against the spring force of the spring member 37.
[0005]
When the latch 32 is temporarily locked (when the movable stopper 38 is lowered downward by the spring force of the upper interior spring 48), the tuning member 39 is disposed symmetrically below the lock box 6. Due to the spring force of the urging springs of the urging means 40, 40, the movable frame member 32 is automatically returned to the neutral position in which it is indirectly engaged with the movable frame member 32. At this time, the movable stopper 38 is lowered, and the distal end engagement portion of the engagement holding member 41 is engaged with the concave engagement portion formed on the upper wall surface of the inverted U-shaped tuning member 39. Engage.
[0006]
In the above configuration, the movable stopper 38 is engaged with and disengaged from the locking portion 323 provided on the movable frame member 32, and the movable stopper 38 regulates the movement of the movable frame member 32 by engaging with the locking portion 323. Is described to be locked in a temporarily locked state (described in the official gazette).
[0007]
If so, at the time of temporary locking, since the movable stopper 38 engages with the movable frame member guided by the latch rod, the temporary locking function is insufficient. In other words, if the movable stopper 38 is locked to, for example, the engagement holding member 41 and / or the latch rod 33, the "engagement function of the movable stopper 38" can be understood technically. Simply engaging the movable stopper member with the movable member has a problem that the engagement relationship is insufficient and the rotation of the latch cannot be reliably prevented. 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 provide a latch lock having such a configuration in addition to or improving a novel configuration by adding a push-pull to a latch lock having such a configuration regardless of whether the engagement relationship of the movable stopper described in the publication is sufficient or insufficient. Being able to convert not only specifications but also single-sided specifications (for example, pull specifications). A second object is to be able to switch from the push-pull specification to the one-sided specification or from the one-sided specification to the original push-pull specification with a simple operation or structure. A third object is that when the door is closed, a temporary locking piece (movable spur) for a latch engages with a latch rod and can reliably prevent rotation of the latch. A fourth object is that a series of members related to the latch can be configured as a latch unit and easily incorporated in a lock box.
[0009]
[Means for Solving the Problems]
When the unlocking handle is pulled or pushed, the push-pull lock of the present invention moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A movable member incorporated in a movable frame member guided by a latch rod so as to interlock with the synchronized member, and a temporary unlocking of a latch for releasing regulation of the movable frame member through the movable stopper. In a push-pull lock provided with a mechanism, a regulating member 8 is provided on a front plate of the lock box so that the protruding rear end portion 8b and the tuning member 39 have a sliding fit and a non-sliding fit relationship. When the regulating member is rotated by a predetermined amount from the front plate side, the advancing of the tuning member is prevented, and the mode is switched from the original push-pull specification to a one-sided specification such as a pull specification.
[0010]
Further, in the push-pull lock of the present invention, when the unlocking handle is pulled or pushed, the push-pull lock is horizontally moved by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A moving tuning member, a movable stopper incorporated in a movable frame member guided by a latch rod in conjunction with the tuning member, and a release of a temporary locking for a latch for releasing regulation of the movable frame member through the movable stopper. In a push-pull lock provided with a lock mechanism, a regulating 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. When the regulating member 8A is fixed, the tuning member 39 is prevented from advancing, and is switched from the original push-pull specification to a one-sided specification such as a pull specification.
[0011]
Further, in the push-pull lock of the present invention, when the unlocking handle is pulled or pushed, the push-pull lock is horizontally moved by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A moving tuning member, a movable stopper incorporated in a movable frame member guided by a latch rod in conjunction with the tuning member, and a release of a temporary locking for a latch for releasing regulation of the movable frame member through the movable stopper. In the push-pull lock provided with the lock mechanism, the protruding rear end portion 8b and the front plate side movable block 40a of the urging means 40B are in a sliding fit and a non-sliding relationship on the front plate 7B of the lock box 6B. When the regulating member 8B is provided and the regulating member 8B is rotated by a predetermined amount from the front plate side, the advancement of the tuning member is prevented via the front plate-side movable block 40a, and the original push-pull specification is obtained. Like pull specification Wherein the switch to one side specifications embodiment.
[0012]
Further, in the push-pull lock of the present invention, when the unlocking handle is pulled or pushed, the push-pull lock is horizontally moved by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A moving tuning member, a movable stopper incorporated in a movable frame member guided by a latch rod in conjunction with the tuning member, and a release of a temporary locking for a latch for releasing regulation of the movable frame member through the movable stopper. In the push-pull lock provided with the lock mechanism, when the front plate 7C is fixed such that the protrusion restricting portion 8C provided on the back surface of the lock box faces the tuning member 39 or the front plate side movable block 40a, The plate 7C directly or indirectly prevents the tuning member 39 from moving forward and switches from the original push-pull specification to a one-sided specification mode such as a pull specification, while the projection restricting portion 8C of the front plate 7C is a tuning portion. 39 or if the front plate 7C so as not to face the front plate side movable block 40a fixed to the lock box 6C reversed-like state, to the single-sided specification aspects, wherein the switching to the pull specifications from the push-pull design.
[0013]
Further, in the push-pull lock of the present invention, when the unlocking handle is pulled or pushed, the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A tuning member that moves horizontally, a movable stopper that is incorporated in a movable frame member that is guided by a latch rod so as to interlock with the tuning member, and a temporary lock for latch that releases regulation of the movable frame member through the movable stopper. In a push-pull lock equipped with an unlocking mechanism, a mounting box unit UN having a handle support seat 52 in a lock box and a swinging piece 51 pivotally supported by the handle support seat via a longitudinal axis 53 is mounted. When the regulating piece 61 is fixed to the mounting seat unit UN via the fixture 60, the unlocking handle 50 does not move to the push side, so that the advancement of the tuning member 39 is indirectly prevented, and the original push Switches to one side specifications such a manner that the pull specifications from the pull specification, while when removing the restricting piece 61 from the mounting seat unit UN, characterized in that the switch from one side Specifications embodiment the pull specifications from the push-pull design.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
The first embodiment of the present invention will be described together with the operation with reference to FIGS.
[0015]
(1) Environmental components and features of the present invention
First, environmental members and features of the present invention will be briefly described. 1 is a door frame of an entrance such as a bedroom, a toilet, an entrance, etc., 2 is a receiving bracket having a strike, 3 is an edge of the door frame (including a strike directly), and 4 is a door which is rotated in a horizontal direction to open an entrance. A door (eg, an indoor door) 5 that opens and closes is a lock provided on the door of the indoor door 4, and 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 a front plate 7 (which means a front or / and front plate for attachment). When the rotary operation of the lever 8 is performed by a predetermined amount, the unlocking state of the latch in the push-pull lock 5 (the state in which the temporarily locked state is changed to the unlocked state) is switched to either the push-pull specification or the pull specification. I have.
[0016]
(2) Configuration 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 for closing 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 a front of the case body 6a. In the case where the front plate and the front are separate from each other, they are generally combined through an unillustrated fastener.
[0017]
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 fits into a lower part of the latch window 9. A circular through-hole 10 is formed. The lock box 6 has a wide side wall 11, a lower wall 12, an upper wall 13, which intersects with the front plate 7, and a rear wall 14 which intersects the upper and lower walls.
On the wide side wall 11 facing the case lid 6b (the case body 6a will be described as an example), a guide portion and a swinging piece for guiding a plurality of members incorporated in the lock box 6 are provided. A window, a pivot hole, a shaft mounting hole, and the like are formed at required positions.
[0018]
For example, reference numeral 15 denotes a pair of left and right first guide portions (horizontal openings, horizontal grooves, horizontal protrusions, etc.) formed at the lowermost central portion along the lower wall 12, and 16 denotes a handle-side swinging piece 51. Reference numeral 17 denotes a pivoting hole for an engagement holding member (a vertical swinging plate, a swinging rod, and the like) into which the sandwiching portion 51b enters. In addition, large and small windows are formed in the wide side wall 11, but they are omitted because they are not related to the specific requirements of the present invention.
[0019]
(3) Main components of lock
Since the present invention includes the basic structure of the push-pull type latch lock described above, the terms and symbols described in JP-A-2002-129796 are used as far as possible in the meaning of comparison. .
[0020]
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 for guiding the movable frame member, the latch support block 34, the latch 35, the lock pin 36 for directly locking the latch, the spring member 37 for the movable frame member, and the interior spring 48 for the movable frame member. A movable stopper 38, a frame-shaped tuning member 39 which slides in the horizontal direction by the driving force of the swinging piece on the handle side, a pair of right and left tuning member urging means 40, 40, and a plate-shaped engagement holding. A member 41, an annular latch support seat 49 formed of a synthetic resin material, and the like are provided. Note that the lock box 6 also includes a lock member 43 for main locking and a cam 44 with a square hole which are not related to the specific requirements of the present invention, but the description thereof will be omitted.
[0021]
(4) Main components for latch temporary locking
"Movable frame member 32" The movable frame member 32 is disposed at an intermediate position in the lock box 6 via a latch rod 33 so as to be horizontally movable. 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 related latch rod 33 will be described with reference to FIG. Reference numeral 32a denotes a storage portion having a rectangular parallelepiped or cube-shaped cavity in which the movable stopper 38 is provided. 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 of the storage portion 32a. A through hole 32b is formed.
[0022]
A receiving portion 32c protrudes in a block shape from a front wall portion of the storage portion 32a, and a front surface of the receiving portion 32c contacts 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 a coaxial line. The inner wall surface or both end surfaces of the lower wall portion of the storage portion 32a has a function of guiding the downward movable U-shaped movable stopper 38.
[0023]
"Latch rod 33"... Latch rod 33 is horizontally inserted through front and rear horizontal guide through holes 32b and 32d of movable frame member 32, and is rotatable around its axis. In the present embodiment, the latch rod 33 engages with the movable stopper 38 so that the latch can be reliably prevented 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 portion of the latch rod 33 that has passed through the horizontal guide through hole 32 d in front of the movable frame member 32. ing. That is, the support block 34 and the latch rod 33 are fixedly connected.
[0025]
The latch support block 34 has a disc-shaped rod connecting portion 34a facing the front surface of the receiving portion 32c of the movable frame member 32, and a latch lock member formed on the front surface of the rod connecting portion 34a so as to protrude in the radial direction. A guide portion 34b for guiding the lock pin 36 as an example, and a latch bearing portion 34c formed so as to protrude in a finger shape from the guide portion 34b.
[0026]
A lock pin 36 is inserted into the guide portion 34b in a penetrating state. A latch 35 is pivotally attached to the bearing portion 34c via a vertical pivot pin 47.
Latch 35 ... The type of the latch 35 is not limited. There are various types of latches, such as one that retreats while rotating, one that simply retreats, and one that integrally has a latch rod. The latch according to the present embodiment rotates by a predetermined amount (in this case, means to rotate by a predetermined amount).
[0027]
Now, the latch 35 is fitted in a 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 projects 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. The opposed wall-shaped rear ends 35b, 35b connected to the front end 35a of the latch 35 have small projection-shaped latch holding portions 42, 42 on the outer wall surfaces, respectively. A storage space 35c is provided between the opposing wall-shaped rear ends 35b, 35b, into which the bearing 34c of the latch support block 34 enters. In the present embodiment, the distal end surface 36a of the lock pin 36 contacts a part of the vertical edge 35d that forms the storage space 35c.
[0028]
“Lock pin 36”... As described above, the rear end face 36 b of the lock pin 36 contacts the front surface of the receiving portion 32 c of the movable frame member 32. In other words, the latch lock member 36 is mounted on the 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 edge of the latch lock member 36 is in contact with the rear edge of the latch 35. , The latch 35 can be locked at a locked position that cannot be inverted.
[0029]
"Integral Configuration of Each Member" In this embodiment, as shown in FIGS. 5 and 6, a latch 35, a latch support block 34 for pivotally supporting 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 formed as one latch unit. Therefore, the incorporation into the lock box 6 is easy.
[0030]
"Spring member 37" The spring member 37 that directly urges the movable frame member 32 constantly urges the movable frame member 32 and the latch lock member 36 in the direction in which the latch 35 is held at the locked position. Therefore, the spring member 37 has a function as a latch spring, and its tip end is wound around the rear end of the latch rod 33 and pressed against the rear wall outer wall surface 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]
"Movable stopper 38" The movable stopper 38 is formed by bending a metal plate material into a U-shape. The movable stopper 38 is provided inside the storage portion 32a of the movable frame member 32 so as to straddle the latch rod 33, and is guided on the inner wall surface of the storage portion 32a so as to be movable up and down.
[0032]
The reason why the movable stopper 38 is an example of the temporary locking piece will be described with reference to FIG. In the present embodiment, the movable stopper 38 is always engaged with the inner surface of the rear end side large diameter portion 33a of the latch rod 33 by the internal spring 48 incorporated in the storage portion 32a of the movable frame member 32. It is urged in the 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 separates from the flange-like 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 diagram of the state which canceled. In this case, when the lock pin 36 moves in the direction of the arrow A (toward 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 FIG. 7, the movable stopper 38 slides down due to 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 by the lock pin 36 in the direction of arrow A (toward the rear wall of the case body), the movable stopper 38 becomes an obstacle. Guided and unable to move in the direction of arrow A.
[0035]
Therefore, the latch 35 cannot rotate. Therefore, since the movable stopper 38 regulates the movement of the movable frame member 32 and locks the latch 35 in the temporarily locked state, it corresponds to a so-called temporary locking piece.
[0036]
(5) Main components of the latch temporary unlocking mechanism
Here, the inner and outer unlocking handles 50 will be described. The inner and outer unlocking handles 50 are fixedly attached to the respective shaft portions 51a at the outer ends of the swinging pieces 51 as shown in FIG. 8 (here, for convenience of explanation, one unlocking handle 50). Handle, rocking piece, etc.). The inner end portion 51b of the swinging piece 51 is formed so as to protrude in a sandwich shape, and the inner end portion 51b engages with the engaging column 39a of the tuning member 39 as shown by an arrow in FIG.
[0037]
"Swinging piece 51": The swinging piece 51 is passed through the handle support seats 52 attached to the inside and outside of the door 1 respectively, and from the swinging piece window 16 of the lock box 6 to the inner end thereof. 51b is provided so as to protrude. The swinging piece 51 can swing left and right through a vertical axis 53 fixed to a handle support seat 52.
[0038]
Therefore, when the unlocking handle 50 is operated in a push (for example, pushing from the outdoor side) or a pull (for example, pulling from the indoor side) direction as shown by an arrow in FIG. 8, the swinging piece 51 swings right and left. .
[0039]
"Tuning member 39": When the unlocking handle 50 as an operating member is pushed or pulled, the frame-shaped tuning member 39 is driven by the driving force of the swinging piece 51 on the unlocking handle, and the urging member is pressed. It moves horizontally against the urging force of 40.
[0040]
As a result, the movable stopper 38 rises via the plate-shaped engagement holding member 41 and against the spring force of the interior spring 48, so that the latch rod 33 is released from the regulation of the movable stopper 38 (engagement). Is canceled). The tuning member 39 of the present embodiment is formed in a horizontally long end-face inverted U-shape. However, in order to provide a guide function, an engagement function, and the like, an upper wall 39c intersecting with a central vertical wall 39b and a lower wall 39c are provided. The wall 39 d extends to near the rear wall 14 of the lock box 6.
[0041]
Meanwhile, a fitting portion (a vertically long hole, a notch, or the like) 55 is formed in the vertical wall 39b, and the fitting portion 55 has a large-diameter shape of a regulating member (for example, a rotation button) 8 shown in FIG. The protruding rear end portion 8b connected to the stopper portion 18 fits depending on the rotation position. A receiving piece 39e for urging means protrudes downward from the lower wall 39d. "Biasing means 40, 40"... The biasing means 40 enables the movable stopper 38 to automatically return to the neutral position where the movable stopper 38 is locked to the inner surface (engaging portion) of the large diameter portion 33a of the latch rod 33. The tuning member 39 is biased.
[0042]
The urging means 40, 40 are guided by the first guide portions 15, 15 of the lock box 6, respectively, and have a pair of left and right movable blocks 40a, 40a based on the receiving piece 39e of the tuning member 39. The movable blocks 40a are composed of a pair of left and right springs 40b, 40b which urge each of the movable blocks 40a, 40a in a direction in which they are pressed against the receiving piece 39e.
[0043]
"Engagement holding member 41": One end of the plate-shaped 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 provided at the swinging end. A cylindrical engagement holding portion 41a that contacts the portion is formed.
[0044]
When the tuning member 39 moves to the left or right against the urging force of the urging means 40 by the driving force of the swinging piece 51, the engagement holding member 41 pivots around the pivot hole 17 of the lock box 6. The engagement holding portion 41a moves upward, whereby the movable stopper 38 rises, and the engagement of the movable stopper 38 with the latch rod 33 is released (unlocking).
[0045]
On the other hand, when the tuning member 39 is returned to the neutral position by the urging means 40, the engaging holding portion 41a is engaged with the engaging recess 66 formed in the upper wall 39c of the tuning member 39, and as a result, the movable stopper 38 Moves down and engages with the latch rod 33.
[0046]
Therefore, in this embodiment, when the unlocking handle 50 is pushed or pulled, the tuning member 39 moves horizontally, the engaging and holding member 41 swings up and down, and the movable stopper 38 moves in conjunction therewith. The movable frame member 32 and the like can be temporarily locked or the state of the temporary locking can be set to the unlocked state.
[0047]
In the above configuration, when the tip of a screwdriver (not shown) is inserted into the groove 19 of the protruding distal end portion 8a of the rotation button 8 from just before the front plate 7 of the lock box 6, and the rotation button 8 is rotated by a predetermined amount, the tuning is performed. Since one of the members 39 is regulated or unregulated, the mode of the lock 5 is switched to either a push-pull specification or a pull specification (or a 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 protruding rear end portion 8b of the rotation button 8 is also in a vertical state. That is, the protruding rear end portion 8b and the tuning member 39 are in a sliding pair (sliding fit) so that the tuning member 39 can move toward the front plate 7 of the lock box 6.
[0049]
Therefore, since the tuning member 39 can be moved in the direction of the front plate 7 by the driving force of the swinging piece 51, the unlocking handle 50 can be pushed (pressed). Therefore, when the push-pull lock 5 is in the mode shown in FIG. 11, the unlocking handle (regardless of the internal or external unlocking handle) is "pulled (pulled)" or "pushed (pushed)". be able to. In this case, the push-pull lock 5 is a push-pull specification in an essential sense.
[0050]
When the unlocking handle having the unlocking handle in this hand is "pulled" or "pushed", the tuning member 39 moves to the left or right, and as a result, the temporary locking piece 38 for latching is locked. Move in the unlock (unlock) direction.
[0051]
Next, FIG. 12 shows a case where the groove 19 of the rotation button 8 is in a horizontal state. In the horizontal state, the rear end 8b of the rotation button 8 is also in the horizontal state. That is, the protruding rear end portion 8b and the tuning member 39 are in a non-slip pair (non-slidable relationship) so that the tuning member 39 cannot move toward the front plate 7 of the lock box 6.
[0052]
Therefore, the tuning member 39 cannot be moved in the direction of the front plate 7 by the driving force of the swinging piece 51, so that the unlocking handle 50 cannot be pushed. Therefore, in the case of the embodiment shown in FIG. 12, the push-pull lock 5 cannot “push” the unlocking handle, so that it has only the pull specification.
[0053]
Thus, 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 turning the turning 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 portion 8b of the rotation button 8 can be freely changed in design such as an elliptical shape or a rhombic 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 8b of the rotation button 8.
[0055]
Next, in this section, an example different from the present embodiment (first example) will be described. In each embodiment, since the main object of the invention is the same, in the description of each embodiment, parts that are the same as or similar to the first embodiment (functions are the same) are given the same or similar reference numerals, and are duplicated. The description of the operation will be omitted.
[0056]
The main difference between the second embodiment shown in FIG. 13 and the first embodiment is that the regulating member 8A for preventing the tuning member 39 from moving forward (on the front plate side, left side) can be inserted into and removed from the lock box 6A. It is fixed.
[0057]
That is, the push-pull lock 5A of the second embodiment has a plurality of mounting holes 10A in the case body 6a of the lock box 6A (the front plate 7A and / or the wide side wall 11A) or the portion near the front plate of the case lid 6b. , 10A, and a locking member 8A is provided in the lock box 6A via at least one of the mounting holes 10A so that the tuning member 39 does not move toward the front plate 7A.
[0058]
Therefore, when the regulating member 8A is fixed to the front plate 7A, the wide side wall 11A, or 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, "pull operation only" is performed, and when the regulating member 8A is removed from the front plate 7A, "push operation is also possible". The restricting 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 advancement of the tuning member 39 is directly prevented by the regulating member 8A. However, in order to “indirectly prevent the advancement of the tuning member 39” as in a third embodiment described later, for example, A rod-like body such as a screw or a pin may be provided at the lowermost part of the front plate 7A so as to be able to be pulled out to prevent the movement of the front plate-side movable block 40a of the urging means 40A (in the case where the configuration is replaced in this way). Is of course equivalent range).
[0060]
The third embodiment shown in FIGS. 14 and 15 is different from the first embodiment mainly in that a configuration similar to that of the first embodiment is adopted and the advancement of the tuning member 39 is indirectly prevented. (This is also an example in which the configuration is replaced.)
[0061]
That is, in the first embodiment, the turning button 8 directly prevents the tuning member 39 from advancing. However, in the push-pull lock 5B of the third embodiment, the push-pull lock 5B of the lock box 6B has the uppermost plate 7B. At the lower part, a rotation button 8B is attached to the support through hole 10B so that the protruding rear end portion 8b and the front plate-side movable block 40a of the urging means 40B have a sliding fit and a non-sliding fit relationship. When the rotation button 8B is rotated by a predetermined amount, the advancement of the tuning member 39 is stopped via the front plate side movable block 40a, and the mode is switched from the original push-pull specification to a single-sided specification such as a 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. Also, the spring 40b for urging the front plate side movable block 40a is omitted because it is unnecessary.
[0063]
The fourth embodiment shown in FIGS. 16 to 18 is mainly different from the first embodiment in that a projection (a regulating projection such as a block, a bar, or a plate) is integrally formed on the front plate 8C. And indirectly prevents the tuning member 39 from moving forward (this is also an example in which the configuration is replaced).
[0064]
The projection restricting portion 8C protruding from the rear surface of the front plate 7C faces the tuning member 39, but may naturally face the front plate-side movable block 40a.
[0065]
In the push-pull lock 5C of the fourth embodiment, a front plate 7C having a protrusion restricting portion 8C is attached to the lock box 6C so that the tuning member 39 does not move to the front plate 7C side. When the front plate 7C is fixed so that the regulating 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 operation is performed. The specification is switched to a one-sided specification such as a pull specification. On the other hand, when the front plate 7C is reversed and fixed to the lock box 6C, the one-sided specification is changed from the push-pull specification to the pull specification.
[0066]
The fifth embodiment shown in FIGS. 19 to 21 is different from the first embodiment mainly in that a regulating piece 61 is provided not on a lock box but on a mounting seat unit UN fixed to a wall surface of a door 4. That is.
[0067]
That is, the lock seat 6 is equipped with the handle support seat 52 via the door 4 and the mounting seat unit UN having the swinging piece 51 pivotally supported by the handle support seat 52 via the longitudinal axis 53. When the restricting 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 prevented, and the original push-pull specification is removed. The mode is switched to a one-sided specification such as a pull specification. On the other hand, when the regulating piece 61 is removed from the mounting seat unit UN, the one-sided specification is changed from a push-pull specification to a pull specification.
[0068]
This concept restricts the movement of the handle for unlocking a part when the outer end (square axis) 51a of the rocking piece 51 is configured to freely move left and right about the vertical axis 53 as a fulcrum. If the outer end (square axis) 51a is not moved toward the hanging side of the door 4 by attaching the handle to the handle support seat 52 or the shaft of the handle, the push operation is killed and only the pull operation is performed. This is the same as the main purpose of the first embodiment in that the advancement of the tuning member is indirectly prevented.
[0069]
In this embodiment, as an example of the handle support seat 52, a round seat having mounting screw holes 62 on the left and right is used. A recess 64 for the restriction piece 61 is appropriately formed around the screw holes 62, 62, and a small through-hole 65 corresponding to one screw hole 62 and a vertically long hole continuous with the small through-hole 65. A restricting piece 61 having a restricting projection 66 is fixedly attached to the recess 64 via a fixing tool 60. A square shaft hole 63 is formed in the center of the handle support seat 52. Although the present invention has been described mainly with respect to the example of conversion between the push-pull specification and the pull specification, from the standpoint of those skilled in the art, changing to the mutual conversion between the push-pull specification and the push specification is equivalent. Range.
[0070]
【The invention's effect】
As is apparent from the above description, the present invention has the following effects.
(1) The user can freely select a push-pull specification and a one-sided specification (pull specification or push specification) in consideration of a mounting location of a building door.
(2) In the above-mentioned (1), in the case of the first embodiment, the regulation member viewed from the front plate of the lock box is simply rotated by a predetermined amount, for example, from a push-pull specification to a one-sided specification. , Or from one-sided specifications to the original push-pull specifications. In the second to fifth embodiments as well, the same purpose as in the first embodiment can be achieved by appropriately providing a regulating member, a protrusion regulating portion, or a regulating piece.
(3) When the door is closed, the movable sputter as a temporary locking piece for the latch 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 formed, the latch 35 can be easily incorporated into the lock box 6.
[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, and the like are omitted.
FIG. 2 is a schematic explanatory view of a lock box in which a part of a cover plate, unrelated members, and the like 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 view of a latch, a lock pin, a support block, a rod, a movable frame member, and the like.
FIG. 5 is a schematic explanatory view of a latch unit (latch, lock pin, support block, etc.).
FIG. 6 is a schematic sectional view taken along line 6-6 of FIG. 5;
FIG. 7 is a schematic explanatory view showing an engagement relationship between 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 diagram showing a relationship between a tuning member and a rocking piece of a 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 view in a case where the regulation member (rotation button) is rotated to change the specification mode of the lock (push is impossible).
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 a front plate.
18 is a 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 viewed 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 section, etc.), 8a: tip end, 8b: projecting rear end, 18: stopper 19, groove, 9: latch window, 10, 10A: through hole, 11, 11A: wide side wall, 20: support spring, 32: movable frame member, 32a: storage portion, 32b, 32d: horizontal guide through hole, 32c: receiving portion, 33: latch rod, 33a: large diameter portion, 33b: small diameter portion, 34: support block, 34a: rod connecting portion, 34b: guide portion, 34c: latch bearing portion, 35: latch, 35a: tip Part, 35b: rear end, 35c: storage space, 35d: vertical edge, 3 ... Latch lock member, 37 ... Spring member for movable frame member, 38 ... Movable stopper, 39 ... Tuning member, 39a ... Engaging column, 39b ... Vertical wall, 39c ... Top wall, 55, 55B ... Mating part, 56 ... Engaging recesses, 40, 40A, 40B: urging means for tuning member, 40a: movable block, 40b: spring, 41: engagement holding member, 48: interior spring for movable stopper, 49: latch support seat, 50: Unlocking handle, 51 ... swinging piece, 51a ... outer end, 51b ... inner end, 52 ... handle support seat, 53 ... longitudinal axis, UN ... mounting seat unit, 60 ... fixing tool, 61 ... regulating piece, 62: mounting screw hole, 63: square shaft hole.

Claims

When the unlocking handle is pulled or pushed, the tuning member moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A push / pull lock provided with a movable stopper incorporated in a movable frame member guided by a latch rod, and a temporary unlocking mechanism for a latch for releasing the restriction of the movable frame member through the movable stopper. In this case, a regulating member 8 is provided on the front plate of the lock box so that the protruding rear end portion 8b and the tuning member 39 are in a sliding-fit and non-sliding-fit relationship, and the regulating member is placed from the front plate side. A push-pull lock characterized in that when the fixed rotation is made, advancement of the tuning member is prevented, and the push-pull lock is switched from the original push-pull specification to a one-sided specification such as a pull specification.

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

In the first aspect, the movable frame member 32 is always urged in the engagement direction by the spring force of the interior spring 48 incorporated in the movable frame member 32, and the movable frame member 32 is behind the latch rod that guides the movable frame member 32. A push-pull lock characterized by being regulated by a movable stopper (38) engaged with a large-diameter portion (33a) on the end side.

2. The latch frame according to claim 1, wherein the movable frame member is guided by the latch rod, the latch support block is connected to the distal end of the latch rod, and the guide portion of the latch support block is penetrated. A push-pull lock, wherein a lock pin to be fitted and a latch 35 supported by a bearing portion 34c of a latch support block 34 are integrally formed as a latch unit.

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

When the unlocking handle is pulled or pushed, the tuning member moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A push / pull lock provided with a movable stopper incorporated in a movable frame member guided by a latch rod, and a temporary unlocking mechanism for a latch for releasing the restriction of the movable frame member through the movable stopper. In the lock box 6A, a regulating member 8A is provided so as to be removable so that the tuning member 39 does not move directly or indirectly to the front plate 7A side, and when the regulating member 8A is fixed to the lock box, the tuning member 39 The push-pull lock is characterized in that the push-pull lock is prevented from moving forward and is switched from an original push-pull specification to a one-sided specification such as a pull specification.

When the unlocking handle is pulled or pushed, the tuning member moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A push / pull lock provided with a movable stopper incorporated in a movable frame member guided by a latch rod, and a temporary unlocking mechanism for a latch for releasing the restriction of the movable frame member through the movable stopper. In this case, a regulating member 8B is provided on the front plate 7B of the lock box 6B so that the protruding rear end portion 8b and the front plate-side movable block 40a of the urging means 40B have a sliding fit and a non-sliding fit relationship. When the regulating member 8B is rotated by a predetermined amount from the front plate side, the advancement of the tuning member is prevented via the front plate side movable block 40a, and the original push-pull specification is changed to a one-sided specification such as a pull specification. Switching Push-pull lock, characterized.

When the unlocking handle is pulled or pushed, the tuning member moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A push / pull lock provided with a movable stopper incorporated in a movable frame member guided by a latch rod, and a temporary unlocking mechanism for a latch for releasing the restriction of the movable frame member through the movable stopper. Here, when the front plate 7C is fixed such that the projection restricting portion 8C provided on the back surface of the lock box faces the tuning member 39 or the front plate side movable block 40a, the front plate 7C directly advances the tuning member 39. Or, it is indirectly blocked and switched from the original push-pull specification to a one-sided specification such as a pull specification, while the protrusion restricting portion 8C of the front plate 7C is adjusted to the tuning member 39 or the front plate-side movable block 4. When fixing the front plate 7C so as not to face the a to lock box 6C reversed-like state, the push-pull lock, characterized in that switching to the pull specifications from the push-pull design from one side specifications embodiment.

When the unlocking handle is pulled or pushed, the tuning member moves horizontally by the driving force of the swinging piece on the handle side protruding into the lock box and against the urging force of the urging means. A push / pull lock provided with a movable stopper incorporated in a movable frame member guided by a latch rod, and a temporary locking / unlocking mechanism for a latch for releasing the restriction of the movable frame member through the movable stopper. In this case, the mounting seat unit UN having the swinging piece 51 pivotally supported by the handle supporting seat via the handle supporting seat 52 and the longitudinal axis 53 is attached to the lock box, and the fixture 60 is attached to the mounting seat unit UN. When the regulating piece 61 is fixed through the lock member, the unlocking handle 50 does not move to the push side, so that the advancing of the tuning member 39 is indirectly prevented, and the piece from the original push-pull type to the pull type is changed. Specifications switches to embodiments, on the other hand, by removing the restriction piece 61 from the mounting seat unit UN, push-pull lock, characterized in that switching from single-sided specification embodiments the pull specifications from the push-pull design.

According to the ninth aspect, the restricting piece 61 is provided with a through hole 65 that fits into a recess 64 formed around the screw hole 62 of the handle support seat 52, and is connected to the through hole 65. A push-pull lock having a vertically long regulating projection 66.