JP4014251B2

JP4014251B2 - Door latch bracket

Info

Publication number: JP4014251B2
Application number: JP11432897A
Authority: JP
Inventors: 奈良智裕
Original assignee: 美和ロック株式会社
Priority date: 1997-04-15
Filing date: 1997-04-15
Publication date: 2007-11-28
Anticipated expiration: 2017-04-15
Also published as: JPH10292681A

Description

【０００１】
【発明の属する技術分野】
本発明は、ドア側のデッドボルト、ラッチボルト（ここでは総称して「ドアーラッチ」と言う。）と係合する縦枠側のドアーラッチの受け金具に関する。
【０００２】
【従来の技術】
従来、この種の受け金具の一例は、実公平６−４９７８０号公報に記載されている。この公報記載の実施例は、基本的には建物の縦枠の凹所に嵌め込まれるトロヨケ（受けケース）と、このトロヨケの左右の側壁に対して移動することができるように該トロヨケに嵌め込まれ、かつ、開口端縁に係合突片が外方向に設けられていると共に底壁に嵌合孔を有するスライドボックスと、このスライドボックスの前記底壁及びトロヨケの底壁の間に介在し、かつ、一側上面に前記嵌合孔に嵌合する偏心突起を有するスライドボックス用移動円盤と、前記凹所内に組み込まれたトロヨケをカバーするように縦枠に固着される取付けカバーとから成る。
【０００３】
上記構成に於いては、構成する部品点数が少ないと言う利点があるものの、スライドボックスをトロヨケの左右の側壁に対して移動させる場合には、ドライバーの先端部を移動円盤の偏心突起に形成された係合溝に差し込み、ドライバーを回すようにしながら、かつ、移動円盤がある軌跡を描くように該ドライバーを移動させ、これによりスライドボックスの左右動の調整をしなければならなかった。
【０００４】
したがって、ドライバーを慎重に操作する必要があると共に、スライドボックスの微調整が容易でないと言う問題点があった。
【０００５】
また上記構成に於いては、バネ部材を構成要件とする他の実施例よりも各部材の組合わせが容易であると言う利点を有するものの、例えば予めトロヨケを縦枠の窪み内に嵌め込んだ後、該トロヨケのケース部内の底面に移動円盤を挿入し、次にスライドボックスの嵌合孔に移動円盤の偏心突起を合わせようとする場合は、円盤はスライドボックスの下方に自重により落下するので、事実上両方の組合わせが困難である。
【０００６】
そこで、実際はトロヨケを縦枠の窪み内に嵌め込む前に各部材（トロヨケ、移動円盤、スライドボックス）を横設状態にして適当に組合わせ、組合わせた状態で縦枠の窪み内に嵌め込む必要がある。この場合最終的に取付けカバーを縦枠に固着し、これによりトロヨケを縦枠の窪み内に固定する訳であるが、この時前記各部材を組合わせた状態に於いてスライドボックスへの押さえが十分でなく、仮に窪み内に嵌め込んだトロヨケに対してスライドボックスが窪みの前方方向に動くと、移動円盤がスライドボックスの嵌合孔からスッポリ外れると言う問題点があった。したがって、現在、このような不便から各部材の組合わせについて合理的な工夫が要望されている。
【０００７】
【発明が解決しようとする課題】
本発明は以上のような従来の問題点に鑑み、第１の目的は、部品点数を少なくするという従来の一実施例の利点を生かしつつ、ドライバーの操作性を向上させ、これによりスライドボックスの微調整を容易に行うことができることである。第２の目的は、構成する各部材を効率的に組合わせることができることである。第３の目的は、スライドボックスの微調整の際に、スライドボックスが上下方向に揺れないことである。第４の目的は、特に駆動カムを容易にトロヨケ内に組み込むことができることである。
【０００８】
【課題を解決するための手段】
本発明のドアーラッチの受け金具は、建物の縦枠２の凹所３に嵌め込まれるトロヨケ１と、このトロヨケの左右の側壁６ａ、６ｂに対して移動することができるように該トロヨケに嵌め込まれ、かつ、左右の開口端縁に第１・第２の係合突片１３、１４がそれぞれ外方向に設けられていると共に、底壁１２ｅに長孔１６を有するスライドボックス１０と、このスライドボックスの前記底壁１２ｅ及びトロヨケの底壁６ｅに介在し、かつ、中央部にドライバー用係合部３２及び前記底壁１２ｅに設けられた係合突起１７が係合する扁心カム溝３１をそれぞれ有するスライドボックス用駆動カム３０と、前記凹所３内に組み込まれたトロヨケをカバーするように縦枠に固着される取付けカバー２０とを備えるドアーラッチの受け金具であること。
【０００９】
そして、上記構成の第１の係合突片１３は、取付けカバー２０の中央部開口２１を形成する係合縁部２２を挟着状態で摺接係合する３個に分割された係合爪片であり、また、これらの係合爪片の構成は、前記係合縁部２２の中央部に陥没状に形成した案内溝２３の上面に乗っかるように係合する中央の係合爪片１３ｂと、前記中央部の両側部の内壁面側にそれぞれ差し込まれた状態で係合する上下の係合爪片１３ａ、１３ｃとから成り、これによりスライドボックス１０は取付けカバー２０に一体的に組み合わされていることを特徴とする。
【００１０】
また上記構成に於いて、駆動カム３０Ａの上面中央部に、ドライバーの先端部が係合する係合部３２Ａを有する突起軸３５を設け、この突起軸３５をスライドボックス１０Ａの長孔１６Ａに嵌合させたことを特徴とする。
【００１１】
さらに、上記構成に於いて、トロヨケ１Ｂのケース部６Ｂの底壁６ｅに嵌合孔４０を形成し、駆動カム３０Ｂをこの嵌合孔４０に嵌合させたことを特徴とする。
【００１２】
【発明の実施の形態】
以下、図面に示す本発明の実施の形態を、ドア側のドアーラッチ（デッドボルト、ラッチボルト）５０との関係で、建物の縦枠２の凹所３に取付けた場合で説明する。
【００１３】
まず１は建物（特にドア用）の縦枠２に形成された凹所３に嵌め込まれるトロヨケである。このトロヨケ１は固着手段４を介して直接又は後述する取付けカバーを介して前記凹所内に固定される。またこのトロヨケ１の表面は方形状に開口５し、この開口５から内方に凹所を形成するケース部６の上下開口縁部には、１対の取付突片７、７がそれぞれ設けられている。なお、これらの取付突片７、７は前記凹所３に連通する縦枠２の表面切欠部に入り込み、縦枠２の表面と面一状態に成る。
【００１４】
ここで図１を基準にトロヨケ１のケース部６を説明すると、６ａが左側壁、６ｂが右側壁、６ｃが上壁、６ｄが下壁、そして、６ｅが底壁である。底壁６ｅは前記凹所３内の底壁内面に当接する。
【００１５】
次に１０はトロヨケ１の左右の側壁６ａ、６ｂに対してスライド移動することができるように該トロヨケ１に嵌め込まれるスライドボックスである。このスライドボックス１０は、トロヨケ１の開口５よりも多少小さい方形開口１１を有するケース状のラッチ収容部１２と、このラッチ収容部１２の開口縁から左右にそれぞれ延びる複数個の係合突片１３、１４とから構成されている。
【００１６】
しかして、図１を基準にトロヨケ１に遊嵌合する前記ラッチ収容部１２を説明すると、１２ａはトロヨケ１の左側壁６ａと対向する左側壁、一方、１２ｂはトロヨケ１の右側壁６ｂと対向する右側壁、そして、１２ｃは上壁、１２ｄは下壁、１２ｅは底壁である。トロヨケ１にスライドボックス１０を組み込むと、前記底壁１２ｅとトロヨケ１の底壁６ｅとの間には所要の空間が形成され、この所要の空間内に後述する駆動カムが摺動可能に介在する。
【００１７】
ところで、前記係合突片１３、１４はスライドボックス１０のガタツキ防止機能を有する点で共通であるが、左側壁１２ａの端縁から連なって左（外）方向へ突出する第１の係合突片１３は、特に調整の際の上下方向の揺れを防止するため、またトロヨケ１に対するスライドボックス１０の取付けの利便性のために３個に分割されている。そして、これらの分割された３個の係合爪片１３ａ、１３ｂ、１３ｃは、取付けカバー２０の方形状中央部開口２１を形成する係合縁部２２を互いに挟み込んだ（挾着）状態で摺接する。一方、右側壁１２ｂの端縁から連なって右方向へ突出する第２の係合突片１４は単なる１枚の長板状に形成されている。そして、この係合突片１４は、図４で示すようにトロヨケ１の右側壁６ｂの端縁並びに縦枠２の凹所の表面開口側と取付けカバー２０の内壁面との間に形成された間隙部１５に入り込む状態となる。したがって、係合突片１４は取付けカバー２０の内壁面とトロヨケ１の右側壁６ｂの端縁を摺接する。
【００１８】
なお、前記係合爪片１３ａ、１３ｂ、１３ｃは取付けカバー２０の開口縁部２２に案内されるように工夫し、本実施例では、例えば開口縁部２２を陥没状の案内溝２３とし、この案内溝２３に中央の係合爪片１３ｂを係合させている。
【００１９】
また前記ラッチ収容部１２の底壁１２ｅの中央部には、幅方向にドライバー挿入用の透孔１６の一例である長孔が形成されていると共に、この透孔１６寄り、あるいは透孔から離れた適当な部位で、かつ、底壁１２ｅの外壁面（トロヨケ１の底壁６ｅと対向する面）には、係合突起１７が１個設けられている。
【００２０】
３０はスライドボックス１０の底壁１２ｅとトロヨケ１の底壁６ｅとの間に介在し、かつ、スライドボックス１０の前記係合突起１７と係合する扁心カム溝３１を有する駆動カムである。この駆動カム３０は円盤状に形成され、略中央部にはドライバー５１の先端部が係合する係合部（係合溝、係合孔）３２が形成されている。
【００２１】
しかして、前記扁心カム溝３１は、弧状或いは半円形の偏心溝でも良いが、各部材の組み合わせの利便性を考慮し、本実施例では偏心円状の溝を採用している。
【００２２】
上記構成に於いて、各部材１、３０、１０、２０の組み合わせ順序について説明する。まずトロヨケ１を建物の縦枠２の凹所３に嵌め込む。次に取付けカバー２０の係合縁部２２に、スライドボックス１０の第１の係合突片１３を係合させる。この時、スライドボックス１０が第１の係合突片１３を介して取付けカバー２０に挾着するように、取付けカバー２０の案内溝２３の上面にその１つ（中間）の係合爪片１３ｂを差込み係合させ、かつ、他（上下）の係合爪片１３ａ、１３ｃを取付けカバー２０の内壁面側に差し込む。これによりスライドボックス１０は取付けカバー２０に一体的に組合わされる。
【００２３】
次にスライドボックス１０のラッチ収容部１２をトロヨケ１に嵌め込む前に、スライドボックス１０の係合突起１７に偏心カム溝３１を介して駆動カム３０をぶら下げる。この場合駆動カム３０は自重により多少なりとも回転するので、駆動カム３０の位置がトロヨケ１の開口５と一致しなくなる。そこで、適当に指で駆動カム３０を回しながらトロヨケ１の開口５に合わせ、一致した所でスライドボックス１０のラッチ収容部１２をトロヨケ１に嵌め込む。そうすると、トロヨケ１の上下の取付け突片７が縦枠２の凹所３と連通する表面切欠部に面一状態にフイットする。そこで、固着手段４を介して取付けカバー２０並びにトロヨケ１を縦枠２に固着する。
【００２４】
また上記構成に於いて、ドアーラッチ５０との良好な係合状態を得るために、スライドボックス１０をトロヨケの左右の側壁６ａ、６ｂに対して移動調整する場合には、取付けカバー２０の中央部開口２１からスライドボックス１０の透孔１６へとドライバー５１を差込み、ドライバーの先端部を駆動カム３０の係合部３２に係合させる。そして、駆動カム３０の係合部３２を中心に、例えばドライバー５１を時計方向に回転させると、駆動カム３０はその位置でドライバー５１と同方向に回転する。そうすると、スライドボックス１０の係合突起１７と駆動カム３０の偏心カム溝３１との摺接関係により、スライドボックス１０は、図８で示すようにトロヨケの右の側壁６ｂへと摺動する。この時スライドボックス１０は、その第１の係合突片１３並びに取付けカバー２０の案内溝２３を介し、安定的（上下に揺れることなく）に移動する。また透孔１６は長孔なので、ドライバー５１がそのままでもスライドボックス１０の移動の障害にならない。
【００２５】
【実施例】
第１実施例に於いて、駆動カム３０をトロヨケ１に容易に組み込むことができるように、例えばトロヨケ１のケース部６の底壁６ｅの内面に駆動カム３０を支持する１又は２以上の駆動カム用支持突起を設けても良い。
【００２６】
以下、この欄では本発明の他の実施例について説明する。なお、他の実施例の説明に当たって前記本発明の第１実施例と同一の構成部分には同一の符号を付し、重複する説明を省略する。
【００２７】
まず図９及び図１０は第２実施例を示すドアーラッチの受け金具である。この第２実施例の特徴は、駆動カム３０Ａの上面（表面）中央部に、ドライバーの先端部が係合する係合部３２Ａを有する突起軸３５を設け、この突起軸３５をスライドボックス１０Ａの長孔１６Ａに嵌合させた点である。
【００２８】
このように構成すると、トロヨケ１Ａに駆動カム３０Ａを組込む際に、予め駆動カム３０Ａをスライドボックス１０Ａのラッチ収容部１２の底壁１２ｅに付着するように取付け、駆動カム３０Ａと、ライドボックス１０Ａと、取付けカバー２０Ａを一緒にまとめてトロヨケ１Ａに組込むことができる。
【００２９】
すなわち、駆動カム３０Ａをスライドボックス１０Ａのラッチ収容部１２の底壁１２ｅに付着させると、駆動カム３０Ａの突起軸３５はスライドボックス１０Ａの長孔１６Ａに嵌合し、一方、スライドボックス１０Ａの係合突起１７は駆動カム３０Ａの偏心カム溝３１に入り込むので、駆動カム３０Ａは２点で支持される格好に成る。したがって、駆動カム３０Ａはスライドボックス１０Ａから容易に落下せず、各部材を合理的に組合わせることができる。
【００３０】
次に図１１及び図１２は第３実施例を示すドアーラッチの受け金具である。この第３実施例の特徴は、トロヨケ１Ｂのケース部６Ｂの底壁６ｅに大径の嵌合孔４０を形成し、駆動カム３０Ｂをこの嵌合孔４０に嵌合させた点である。この場合前記ケース部６Ｂの底壁６ｅに駆動カム３０Ｂ用嵌合凹所を形成しても同様である。
【００３１】
このように構成すると、各部材の組合わせの際、まずトロヨケ１Ｂを縦枠２の凹所３に嵌め込み、次に駆動カム３０Ｂをトロヨケ１Ｂの嵌合孔４０に嵌合させる。この場合駆動カム３０Ｂの外径（直径）は、嵌合孔４０の孔の径を適当に考慮して設計されているので、駆動カム３０Ｂの外周壁はトロヨケ１Ｂの嵌合孔４０を形成する内周壁４１に当接し、トロヨケ１Ｂの底壁６ｅから容易に落下しない。
【００３２】
そこで、取付けカバー２０Ｂの係合縁部２２に、スライドボックス１０Ｂの第１の係合突片１３を係合させ、取付けカバー２０Ｂを持ちながらスライドボックス１０Ｂをトロヨケ１Ｂのケース部６Ｂに嵌め込む。したがって、このように構成しても各部材を合理的に組合わせすることができると言う利点がある。
【００３３】
【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）中央部にドライバー用係合部が設けられ、かつ、上面にスライドボックスの底壁の係合突起と係合する扁心カム溝が設けられたスライドボックス用駆動カムを用いているので、ドライバーの操作性を向上させ、これによりスライドボックスの微調整を容易に行うことができる。
（２）特に、本発明は、構成する各部材を効率的に組合わせることができると共に、スライドボックスの微調整の際に、スライドボックスが上下方向に揺れないと共に、取付けカバー２０がスライドボックスから簡単に外れない。
（３）請求項２及び請求項３に記載の発明は、駆動カムをトロヨケ内に組み込む際に、駆動カムがスライドボックス又はトロヨケから容易に外れない。したがって、各部材をトロヨケ内に合理的に組合わせることができる。
【図面の簡単な説明】
図１ないし図８は本発明の第１実施例を示す各説明図。図９及び図１０は本発明の第２実施例を示す各説明図、図１１及び図１２は本発明の第３実施例を示す各説明図である。
【図１】第１実施例の分解斜視図。
【図２】使用状態の正面からの説明図。
【図３】図２の３−３線拡大断面図。
【図４】図２の４−４線拡大断面図。
【図５】要部（駆動カム、トロヨケ）の分解斜視図。
【図６】要部（取付けカバー、スライドボックス）の分解斜視図。
【図７】主要部の正面からの説明図。
【図８】図７を基準にし、ドライバーでスライドボックスを移動させた説明図。
【図９】第２実施例の分解斜視図。
【図１０】要部の説明図。
【図１１】第３実施例の分解斜視図。
【図１２】要部の説明図。
【符号の説明】
１、１Ａ、１Ｂ…トロヨケ、２…縦枠、３…凹所、４…固着手段、５…開口、６、６Ｂ…ケース部、７…取付け突片、１０、１０Ａ、１０Ｂ…スライドボックス、１２…ラッチ収容部、６ｅ、１２ｅ…底壁、１３、１４…係合突片、１３ａ、１３ｂ、１３ｃ…係合爪片、１６、１６Ａ…透孔、１７…係合突起、、２０、２０Ａ、２０Ｂ…取付けカバー、２１…中央部開口、２２…縁部、２３…案内溝、３０、３０Ａ、３０Ｂ…駆動カム、３１…偏心カム溝、３２、３２Ａ…係合部、３５…突起軸、４０…嵌合孔、４１…内周壁、５０…ドアーラッチ、５１…ドライバー。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a receiving bracket for a door latch on a vertical frame side that engages with a dead bolt and a latch bolt on a door side (collectively referred to herein as “door latch”).
[0002]
[Prior art]
Conventionally, an example of this type of metal fitting is described in Japanese Utility Model Publication No. 6-49780. The embodiment described in this publication is basically fitted to a troyoke (receiving case) fitted in a recess in a vertical frame of a building and to the left and right side walls of the troyoke so as to be movable. And, an opening is provided between the slide box having an engagement protrusion on the outer edge and a fitting hole in the bottom wall, and the bottom wall of the slide box and the bottom wall of the troyoke, And a slide box moving disk having an eccentric protrusion that fits into the fitting hole on the upper surface of one side, and a mounting cover that is fixed to the vertical frame so as to cover the trowel incorporated in the recess.
[0003]
In the above configuration, although there is an advantage that the number of components is small, when the slide box is moved with respect to the left and right side walls of the troyoke, the tip of the driver is formed on the eccentric protrusion of the moving disk. It was necessary to adjust the left and right movement of the slide box by inserting it into the engaging groove and moving the driver so as to turn the driver and drawing a moving track.
[0004]
Therefore, there is a problem that the driver needs to be carefully operated and that the fine adjustment of the slide box is not easy.
[0005]
In addition, the above configuration has an advantage that the combination of each member is easier than other embodiments having a spring member as a constituent element, but, for example, the troy is pre-inserted in the recess of the vertical frame. Later, when a moving disk is inserted into the bottom surface of the case of the troyoke, and then the eccentric protrusion of the moving disk is aligned with the fitting hole of the slide box, the disk falls under the slide box due to its own weight. In fact, the combination of both is difficult.
[0006]
Therefore, in fact, before fitting the troyoke into the hollow of the vertical frame, each member (troyoke, moving disk, slide box) is placed in a horizontal state and properly combined, and then fitted into the hollow of the vertical frame in the combined state. There is a need. In this case, the mounting cover is finally fixed to the vertical frame, and the troyoke is fixed in the recess of the vertical frame, but at this time, the pressing to the slide box is performed in a state where the above-mentioned members are combined. If the slide box moves in the forward direction of the depression with respect to the Troyoke that is not enough, the moving disk will be disengaged from the fitting hole of the slide box. Therefore, at present, rational ingenuity is desired for the combination of each member due to such inconvenience.
[0007]
[Problems to be solved by the invention]
In view of the conventional problems as described above, the first object of the present invention is to improve the operability of the driver while taking advantage of the conventional embodiment of reducing the number of parts, thereby improving the operability of the slide box. Fine adjustment can be easily performed. The second object is to be able to efficiently combine the constituent members. The third purpose is that the slide box does not swing up and down during fine adjustment of the slide box. The fourth object is that the drive cam can be particularly easily integrated into the trolley.
[0008]
[Means for Solving the Problems]
The door latch receiving bracket of the present invention is fitted into the troyoke so that it can move relative to the troyoke 1 fitted into the recess 3 of the vertical frame 2 of the building and the left and right side walls 6a, 6b of the troyoke, In addition, first and second engaging protrusions 13 and 14 are provided outwardly on the left and right opening edges, respectively, and a slide box 10 having a long hole 16 in the bottom wall 12e, and the slide box The bottom wall 12e and the bottom wall 6e of Troyoke are provided with a driver cam engaging portion 32 and a flat cam groove 31 engaged with the engaging projection 17 provided on the bottom wall 12e, respectively. A door latch receiving bracket including a slide box drive cam 30 and a mounting cover 20 fixed to a vertical frame so as to cover a trowel incorporated in the recess 3.
[0009]
And the 1st engaging protrusion 13 of the said structure is divided into three engaging claws which slidably engage the engaging edge part 22 which forms the center part opening 21 of the attachment cover 20 in the clamping state. a piece, the configuration of these engagement pawls are central Kakarigotsumehen 13b that engages to get on the upper surface of the guide groove 23 formed on the internal concave in the central portion of the engagement edge portion 22 And upper and lower engaging claw pieces 13a and 13c which are engaged with each other in the state of being inserted into the inner wall surfaces on both sides of the central portion , whereby the slide box 10 is integrally combined with the mounting cover 20. It is characterized by.
[0010]
Further, in the above configuration, a projection shaft 35 having an engagement portion 32A with which the tip of the driver is engaged is provided at the center of the upper surface of the drive cam 30A, and this projection shaft 35 is fitted into the long hole 16A of the slide box 10A. It is characterized by being combined.
[0011]
Further, in the above configuration, a fitting hole 40 is formed in the bottom wall 6e of the case portion 6B of the troyoke 1B, and the drive cam 30B is fitted into the fitting hole 40.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention shown in the drawings will be described in the case of being attached to a recess 3 of a vertical frame 2 of a building in relation to a door-side door latch (dead bolt, latch bolt) 50.
[0013]
First, reference numeral 1 denotes a troyoke fitted into a recess 3 formed in a vertical frame 2 of a building (especially for a door). The trowel 1 is fixed in the recess directly through the fixing means 4 or through a mounting cover described later. The surface of the troyoke 1 has a square opening 5, and a pair of mounting protrusions 7 and 7 are provided on the upper and lower opening edges of the case part 6 that forms a recess inward from the opening 5. ing. These mounting protrusions 7 and 7 enter the surface notch portion of the vertical frame 2 communicating with the recess 3 and are flush with the surface of the vertical frame 2.
[0014]
Here, the case portion 6 of the troyoke 1 will be described with reference to FIG. 1. 6a is a left side wall, 6b is a right side wall, 6c is an upper wall, 6d is a lower wall, and 6e is a bottom wall. The bottom wall 6e contacts the inner surface of the bottom wall in the recess 3.
[0015]
Next, reference numeral 10 denotes a slide box fitted into the troyoke 1 so that it can slide with respect to the left and right side walls 6a, 6b of the troyoke 1. The slide box 10 includes a case-like latch housing portion 12 having a rectangular opening 11 that is slightly smaller than the opening 5 of the trolley 1, and a plurality of engaging protrusions 13 extending from the opening edge of the latch housing portion 12 to the left and right. , 14.
[0016]
Thus, the latch accommodating portion 12 that loosely fits to the troyoke 1 will be described with reference to FIG. 1. 12a is the left side wall facing the left side wall 6a of the troyoke 1, and 12b is opposite to the right side wall 6b of the troyoke 1. The right side wall, 12c is the upper wall, 12d is the lower wall, and 12e is the bottom wall. When the slide box 10 is incorporated in the troyoke 1, a required space is formed between the bottom wall 12e and the bottom wall 6e of the troyoke 1, and a drive cam described later is slidably interposed in the required space. .
[0017]
By the way, the engagement protrusions 13 and 14 are common in that the slide box 10 has a backlash prevention function. However, the engagement protrusions 13 and 14 are connected to the edge of the left wall 12a and protrude in the left (outward) direction. The piece 13 is divided into three parts for preventing vertical shaking particularly during adjustment, and for the convenience of mounting the slide box 10 to the trolley 1. The three engagement claw pieces 13a, 13b, and 13c thus divided are slid in a state in which the engagement edge portion 22 that forms the rectangular central opening 21 of the mounting cover 20 is sandwiched (attached) to each other. Touch. On the other hand, the second engaging protruding piece 14 that continues from the edge of the right side wall 12b and protrudes to the right is formed as a single long plate. And this engagement protrusion 14 was formed between the edge of the right side wall 6b of Troyoke 1 and the surface opening side of the recess of the vertical frame 2 and the inner wall surface of the mounting cover 20, as shown in FIG. The gap 15 enters the state. Therefore, the engagement protrusion 14 is in sliding contact with the inner wall surface of the mounting cover 20 and the edge of the right side wall 6b of the trolley 1.
[0018]
The engaging claw pieces 13a, 13b, and 13c are devised so as to be guided by the opening edge 22 of the mounting cover 20, and in this embodiment, for example, the opening edge 22 is formed as a recessed guide groove 23. A central engaging claw piece 13 b is engaged with the guide groove 23.
[0019]
In addition, a long hole, which is an example of a through hole 16 for inserting a driver, is formed in the center portion of the bottom wall 12e of the latch housing portion 12 in the width direction, and is close to or away from the through hole 16. In addition, one engagement protrusion 17 is provided on the outer wall surface of the bottom wall 12e (the surface facing the bottom wall 6e of the troyoke 1) at an appropriate portion.
[0020]
Reference numeral 30 denotes a drive cam that is interposed between the bottom wall 12e of the slide box 10 and the bottom wall 6e of the trolley 1 and has a flat cam groove 31 that engages with the engagement protrusion 17 of the slide box 10. The drive cam 30 is formed in a disk shape, and an engagement portion (engagement groove, engagement hole) 32 with which the tip of the driver 51 is engaged is formed in a substantially central portion.
[0021]
Thus, the eccentric cam groove 31 may be an arc-shaped or semicircular eccentric groove, but in consideration of the convenience of the combination of the members, an eccentric circular groove is employed in this embodiment.
[0022]
In the above configuration, the combination order of the members 1, 30, 10, and 20 will be described. First, the troyoke 1 is inserted into the recess 3 of the vertical frame 2 of the building. Next, the first engagement protrusion 13 of the slide box 10 is engaged with the engagement edge 22 of the mounting cover 20. At this time, one (intermediate) engagement claw piece 13b is formed on the upper surface of the guide groove 23 of the mounting cover 20 so that the slide box 10 is attached to the mounting cover 20 via the first engagement protrusion 13. Are inserted and engaged, and the other (upper and lower) engaging claw pieces 13 a and 13 c are inserted into the inner wall surface side of the mounting cover 20. As a result, the slide box 10 is integrally combined with the mounting cover 20.
[0023]
Next, before the latch housing portion 12 of the slide box 10 is fitted into the trolley 1, the drive cam 30 is hung on the engagement protrusion 17 of the slide box 10 via the eccentric cam groove 31. In this case, since the drive cam 30 rotates somewhat due to its own weight, the position of the drive cam 30 does not coincide with the opening 5 of the trolley 1. Therefore, the drive cam 30 is appropriately rotated with the finger so as to be aligned with the opening 5 of the troyoke 1 and the latch accommodating portion 12 of the slide box 10 is fitted into the troyoke 1 at the coincident place. Then, the upper and lower mounting protrusions 7 of Troyoke 1 fit in a flush state with the surface notch communicating with the recess 3 of the vertical frame 2. Therefore, the attachment cover 20 and the trojoke 1 are fixed to the vertical frame 2 via the fixing means 4.
[0024]
In the above configuration, in order to obtain a good engagement state with the door latch 50, when the slide box 10 is moved and adjusted with respect to the left and right side walls 6a, 6b of the troyoke, the central opening of the mounting cover 20 is opened. The driver 51 is inserted from 21 into the through hole 16 of the slide box 10, and the tip of the driver is engaged with the engaging portion 32 of the drive cam 30. Then, for example, when the driver 51 is rotated clockwise around the engaging portion 32 of the drive cam 30, the drive cam 30 rotates in the same direction as the driver 51 at that position. Then, due to the sliding contact relationship between the engagement protrusion 17 of the slide box 10 and the eccentric cam groove 31 of the drive cam 30, the slide box 10 slides to the right side wall 6b of Troyoke as shown in FIG. At this time, the slide box 10 moves stably (without shaking up and down) via the first engaging protrusion 13 and the guide groove 23 of the mounting cover 20. Moreover, since the through-hole 16 is a long hole, even if the driver 51 is left as it is, it does not hinder the movement of the slide box 10.
[0025]
【Example】
In the first embodiment, for example, one or more drives that support the drive cam 30 on the inner surface of the bottom wall 6e of the case portion 6 of the troyoke 1 so that the drive cam 30 can be easily incorporated into the troyoke 1 Cam support protrusions may be provided.
[0026]
Hereinafter, other embodiments of the present invention will be described in this section. In the description of the other embodiments, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.
[0027]
First, FIGS. 9 and 10 show a door latch receiving metal fitting according to a second embodiment. The feature of the second embodiment is that a projection shaft 35 having an engagement portion 32A with which the tip of the driver is engaged is provided at the center of the upper surface (surface) of the drive cam 30A, and this projection shaft 35 is connected to the slide box 10A. This is the point fitted in the long hole 16A.
[0028]
If comprised in this way, when assembling the drive cam 30A in the Troyoke 1A, the drive cam 30A is attached in advance so as to adhere to the bottom wall 12e of the latch housing portion 12 of the slide box 10A, and the drive cam 30A, the ride box 10A, The mounting cover 20A can be assembled together and incorporated into the Troyoke 1A.
[0029]
That is, when the drive cam 30A is attached to the bottom wall 12e of the latch housing portion 12 of the slide box 10A, the projecting shaft 35 of the drive cam 30A is fitted into the long hole 16A of the slide box 10A, while the engagement of the slide box 10A. Since the mating protrusion 17 enters the eccentric cam groove 31 of the drive cam 30A, the drive cam 30A can be supported at two points. Therefore, the drive cam 30A does not easily fall from the slide box 10A, and the respective members can be reasonably combined.
[0030]
Next, FIGS. 11 and 12 show a door latch receiving metal fitting according to a third embodiment. The feature of the third embodiment is that a large-diameter fitting hole 40 is formed in the bottom wall 6e of the case portion 6B of Troyoke 1B, and the drive cam 30B is fitted into the fitting hole 40. In this case, even if a fitting recess for the drive cam 30B is formed in the bottom wall 6e of the case portion 6B, the same applies.
[0031]
If comprised in this way, in the case of a combination of each member, first, the troyoke 1B is fitted in the recess 3 of the vertical frame 2, and then the drive cam 30B is fitted in the fitting hole 40 of the troyoke 1B. In this case, the outer diameter (diameter) of the drive cam 30B is designed in consideration of the diameter of the fitting hole 40, so that the outer peripheral wall of the drive cam 30B forms the fitting hole 40 of the trowel 1B. It abuts against the inner peripheral wall 41 and does not fall easily from the bottom wall 6e of the troyoke 1B.
[0032]
Therefore, the first engagement protrusion 13 of the slide box 10B is engaged with the engagement edge portion 22 of the attachment cover 20B, and the slide box 10B is fitted into the case portion 6B of the trolley 1B while holding the attachment cover 20B. Therefore, even if comprised in this way, there exists an advantage called being able to combine each member rationally.
[0033]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) Since the driver engaging portion for the driver is provided at the center, and the driving cam for the slide box having the flat cam groove for engaging the engaging protrusion of the bottom wall of the slide box on the upper surface is used. The operability of the driver can be improved, and the fine adjustment of the slide box can be easily performed.
(2) In particular, according to the present invention, the constituent members can be combined efficiently, the slide box does not swing up and down during fine adjustment of the slide box, and the mounting cover 20 is removed from the slide box. It cannot be easily removed.
(3) In the inventions according to claims 2 and 3, when the drive cam is incorporated into the troyoke, the drive cam is not easily detached from the slide box or troyoke. Therefore, each member can be reasonably combined in the troyoke.
[Brief description of the drawings]
1 to 8 are explanatory views showing a first embodiment of the present invention. FIGS. 9 and 10 are explanatory views showing a second embodiment of the present invention, and FIGS. 11 and 12 are explanatory views showing a third embodiment of the present invention.
FIG. 1 is an exploded perspective view of a first embodiment.
FIG. 2 is an explanatory view from the front in use.
3 is an enlarged cross-sectional view taken along line 3-3 in FIG.
4 is an enlarged sectional view taken along line 4-4 of FIG.
FIG. 5 is an exploded perspective view of a main part (drive cam, troyoke).
FIG. 6 is an exploded perspective view of main parts (a mounting cover and a slide box).
FIG. 7 is an explanatory view from the front of the main part.
FIG. 8 is an explanatory diagram in which the slide box is moved with a screwdriver based on FIG. 7;
FIG. 9 is an exploded perspective view of the second embodiment.
FIG. 10 is an explanatory diagram of a main part.
FIG. 11 is an exploded perspective view of a third embodiment.
FIG. 12 is an explanatory diagram of a main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Troyoke, 2 ... Vertical frame, 3 ... Recess, 4 ... Adhering means, 5 ... Opening, 6, 6B ... Case part, 7 ... Mounting protrusion 10, 10A, 10B ... Slide box, 12 ... Latch receiving part, 6e, 12e ... Bottom wall, 13,14 ... engaging protrusion, 13a, 13b, 13c ... engaging claw piece, 16, 16A ... through hole, 17 ... engaging protrusion, 20, 20A, 20B ... Mounting cover, 21 ... Center portion opening, 22 ... Edge, 23 ... Guide groove, 30, 30A, 30B ... Drive cam, 31 ... Eccentric cam groove, 32, 32A ... engagement portion, 35 ... projection shaft, 40 ... Fitting hole, 41 ... Inner wall, 50 ... Door latch, 51 ... Driver.

Claims

Troyoke 1 to be fitted in the recess 3 of the vertical frame 2 of the building, and the left and right opening edges, which are fitted to the troyoke so as to be able to slide and move with respect to the left and right side walls 6a and 6b of the troyoke. The first and second engaging protrusions 13 and 14 are respectively provided in the outward direction, and the slide box 10 having the long hole 16 in the bottom wall 12e, the bottom wall 12e of the slide box, A drive cam 30 for a slide box that is interposed in the bottom wall 6e and has a flat cam groove 31 that engages with a driver engagement portion 32 and an engagement projection 17 provided on the bottom wall 12e at the center portion; , a receiving metal of Doaratchi and a mounting cover 20 which is secured to the vertical frame to cover Toroyoke incorporated within the recess 3, the first engaging projection piece 13 is attached The engagement edge 22 that forms the central opening 21 of the bar 20 is engaged pawl is divided into three to sliding engagement in clamping state, and configuration of these engagement pawls are A central engaging claw piece 13b that engages so as to ride on the upper surface of a guide groove 23 formed in a recessed shape in the central portion of the engaging edge portion 22, and the inner wall surface side of both side portions of the central portion are respectively inserted. The door latch receiving bracket is characterized by comprising upper and lower engaging claw pieces 13a and 13c that are engaged with each other , whereby the slide box 10 is integrally combined with the mounting cover 20 .

In Claim 1, the protrusion shaft 35 which has the engaging part 32A which the front-end | tip part of a driver engages in the upper surface center part of the drive cam 30A is provided, and this protrusion shaft 35 is fitted in the long hole 16A of the slide box 10A. The door latch bracket is characterized by the combination.

The door latch receiving metal fitting according to claim 1, wherein a fitting hole 40 is formed in the bottom wall 6e of the case portion 6B of the trowel 1B, and the driving cam 30B is fitted into the fitting hole 40.