JP3969052B2

JP3969052B2 - Traveling mechanism and sliding door

Info

Publication number: JP3969052B2
Application number: JP2001317237A
Authority: JP
Inventors: 健一藤崎
Original assignee: Dainippon Ink and Chemicals Co Ltd
Current assignee: DIC Corp
Priority date: 2001-10-15
Filing date: 2001-10-15
Publication date: 2007-08-29
Anticipated expiration: 2021-10-15
Also published as: JP2003120115A

Description

【０００１】
【発明の属する技術分野】
本発明は、タンス、食器棚、キャビネット等の各種収納用等の引き戸、これら引き戸等に用いられる走行機構に関する。
【０００２】
【従来の技術】
従来、各種収納に用いられる開閉用等の引き戸として、通常二つの平板状の扉が上下各二条のレールやガイド部等にそれぞれ摺動可能に取り付けられて構成され、一方または両方の扉が開閉作動させられる。
その一例を図１２により説明すると、図１２（ａ）の引き戸においては、天板１と地板２とにそれぞれガイドレール３と下レール４とが各２条対向して設けられ、これらに摺動可能に嵌め込む二枚の扉５には、その裏面上部にガイドレール３に当接するガイド６が、裏面下部に下レール４上を摺動する戸車７がそれぞれ設けられている。
また図１２（ｂ）の引き戸においては、二枚の扉５の上部にそれぞれランナー８を取り付け、下部にそれぞれガイド溝９を形成する一方、天板１には各ランナー８を回転可能に収容して扉５を吊り下げる上ガイドレール部１０Ａを、床２Ａには各ガイド溝９に摺動可能に差し込まれる下部ガイド１０Ｂを設けている。
また図１２（ｃ）では、二つの扉５の裏面上部にランナー１１をそれぞれ取り付け、裏面下部にはそれぞれガイドローラ１２を固定する。天板１には各ランナー１１を受ける上レール１３を固定し、地板２には各ガイドローラ１２を受ける下レール１４をそれぞれ固定する。
そして上述の各構成を有する引き戸においては、引き違い構造であるために、二つの扉をそれぞれ別々のレール等の走行路を走行させることで開閉操作を行うことになる。そのため、開状態では二枚の扉は二条の走行路上で厚み方向に重ねられ、閉状態では相互に重ならないようにずれた状態で厚み方向に段差が設けられている。
【０００３】
【発明が解決しようとする課題】
しかしながら、このような引き違い構造では、扉の厚み方向に扉二枚分の走行スペースと二条の走行路が要求され、特に扉を閉じた閉状態では段差が生じるために美観を損ねるという欠点がある。
本発明は、このような実情に鑑みて、１条のガイドレールで扉等の部材を保持して走行可能とした操作性の良い走行機構と引き戸を提供することを目的とする。
【０００４】
【課題を解決するための手段】
本発明による走行機構は、走行車輪と、該走行車輪に連結されている主ガイドローラと、走行車輪に回動可能に保持された支持部材と、該支持部材に設けられているガイドローラと、支持部材を回動する方向に付勢する付勢部材とを備えた車輪部と、走行車輪と主ガイドローラとガイドローラとを走行可能に収容すると共に付勢部材によってガイドローラを逃がして支持部材を回動させる空隙部が設けられている１条の直線状のガイドレールとを備え、走行車輪と主ガイドローラとガイドローラとがガイドレールに収容された状態で支持部材を走行させ、前記ガイドローラがガイドレールの空隙部から逃げた状態で支持部材を停止させるようにしたことを特徴とする。
支持部材で支持された扉等の部材は、走行時に車輪部がガイドレールに沿って走行することで一体に移動することができ、非走行時にはガイド部が付勢部材の付勢力で空隙部に逃げることで支持部材が回動するために扉等の部材はその走行方向に交差する方向に変位することになり、扉等の部材は走行時と非走行時とでその位置を移動させることができ、１条の直線状のガイドレールで複数の扉等の部材を保持して位置をずらせて走行でき、省スペースを達成できる上に非走行時には複数の扉等の部材を並べることができて見栄えがよい。
【０００５】
また本発明による引き戸は、ガイドレールに取り付けられた複数の扉がガイドレールに沿って移動して互いに重ねられた開状態と相互にずれた閉状態とを取るようにした引き戸において、走行車輪と、該走行車輪に連結されている主ガイドローラと、走行車輪に回転可能に保持されている支持部材と、該支持部材に設けられたガイドローラとを備えた戸車と、走行車輪と主ガイドローラとガイドローラとを走行可能に収容すると共にガイドローラを逃がすことで支持部材を回動させる空隙部を設けた１条の直線状のガイドレールと、支持部材にそれぞれ連結されていて支持部材が回動することでその面に交差する方向に移動する前記扉とを備え、走行車輪及び主ガイドローラと共にガイドローラがガイドレールに収納された状態で一の扉をその面に交差する方向に移動させてガイドレールに沿って走行可能とし、ガイドローラがガイドレールの空隙部に逃げた状態で一の扉が他の扉と相互にずれた閉状態をとるようにしたことを特徴とする。
一の扉は走行時には一の扉を押すことで他の扉に対して重なる方向に変位するために他の扉が障壁になることなく開閉のための走行操作をスムーズに行え、閉状態では他の扉と同一面上に並ぶことになるから、扉の開閉操作に際して操作性が良好である上に閉状態ではこれら扉が同一面上に並んで段差が生じないから見栄えがよい。しかも、一の扉の開閉作動のための走行時には走行車輪と主ガイドローラとガイドローラはガイドレールに収納して走行し、扉を閉状態にする際にはガイドレールの空隙部にガイドローラを逃がすことで支持部材を回動させて一の扉をその扉の面に交差する方向に移動させる。そのため、他の扉に対して一の扉を同一のガイドレールで走行でき、閉状態で扉を同一面上に並べることができる。
【０００６】
また、戸車にはガイドローラをガイドレールの空隙部に逃がす方向に付勢する付勢部材が設けられていてもよい。
戸車の走行時にガイド部がガイドレールの空隙部に至れば自動的に空隙部に逃げて扉をその扉の面に交差する方向に移動させることができる。
また支持部材は略Ｌ字状に形成されていて、扉が連結された第一部材とガイドローラが設けられた第二部材とを有していてもよい。
ガイド部が第二部材と共にガイドレールの空隙部に逃げることで第一部材が一体に回動して扉がその扉の面に交差する方向に移動する。
【０００８】
【発明の実施の形態】
次に本発明の実施形態を図１乃至図７により説明する。
図１は実施の形態による引き戸の要部斜視図、図２は各扉に取り付けられる第１戸車を示す斜視図、図３は各扉に取り付けられる第２戸車を示す斜視図、図４は戸車と扉の嵌合部の構成を示すものであって、（ａ）は嵌合前の斜視図、（ｂ）は嵌合状態の水平断面図、図５はガイドレールに扉に付けた戸車を収容した状態を示すもので、（ａ）は要部平面図、（ｂ）は要部縦断面図、図６は扉の先端部を示す図、図７は引き戸の操作工程を示すもので、（ａ）は閉状態、（ｂ）は開放操作開始状態、（ｃ）は開放操作途中状態を示す図、図８は引き戸の操作工程を示すもので、（ａ）は開放操作途中状態、（ｂ）は開状態を示す図である。図１に示す実施の形態による引き戸２０は、側壁の上端と下端（または天板と地板）にそれぞれ１条のガイドレール２１Ａ、２１Ｂが設けられている。複数、例えば２枚の扉２２Ａ，２２Ｂの上部と下部の裏面にはそれぞれ二つの戸車２３、２４が装着されており（図１では一方の扉のみを示す）、これら戸車２３，２４を介して各扉２２Ａ，２２Ｂはガイドレール２１Ａ，２１Ｂに摺動可能に保持されている。尚、扉２２Ａ、２２Ｂの上部に取り付ける戸車２３，２４と下部に取り付ける戸車２３，２４とは支持部材２６の向きが逆（線対称）になっているが、同一機能を有しており、本書では同一符号を用いて説明する。
しかも二枚の扉２２Ａ，２２Ｂは上下の各１条のガイドレール２１Ａ、２１Ｂ上を走行可能に設けられ、扉２２Ａ，２２Ｂは閉状態で平面上に並べられ、開状態または走行状態で互いに重なるよう厚み方向にずれる。
【０００９】
各扉２２Ａ（２２Ｂ）の上部と下部の裏面にそれぞれ設けた二つの戸車２３、２４は図２及び図３に示す構成を有しており、一方を第１戸車２３、他方を第二戸車２４とする。
図２に示す第１戸車２３において、例えば略Ｌ字形板状をなす支持部材２６の屈曲部に軸部２７が回転可能に起立して取り付けられ、軸部２７の他端には例えば半円筒状のフレーム２８が固定されている。フレーム２８には回転軸２８ａが貫通して支持され、フレーム２８の両側には回転軸２８ａを回転中心とした一対の走行ローラ２９，２９（走行車輪）が回転可能に設けられている。走行ローラ２９の外周面はフレーム２８よりも外側に突出している。
フレーム２８の外周面には略Ｌ字形の板部３０が一体形成されており、板部３０の一方の板状部３０ａは支持部材２６と略平行に延在していて板状部３０ａと略平行に主ガイドローラ３１が回転可能に支持されている。
支持部材２６は長板部２６ａ（第一部材）と短板部２６ｂ（第二部材）とでなる略Ｌ字形を形成していて、長板部２６ａの自由端部には、この第１戸車２３を扉２２Ａに装着するための扉取り付け部３３が設けられている。この扉取り付け部３３は例えば略直方体形状の本体３４とその両側部に設けられた弾性変形可能な係合部３５、３５とで形成され、各係合部３５は段付きの板状でその自由端部と途中部分とにそれぞれ係合凸部３５ａ、３５ｂが設けられている。また長板部２６ａの扉取り付け部３３と軸部２７との間に係止部３６が設けられている。
【００１０】
短板部２６ｂにはその延在方向に沿って適宜数、例えば１つのガイドローラ３８ａが回転可能に設けられ、このガイドローラ３８ａは主ガイドローラ３１と略平行な面上、好ましくは支持部材２６に対して同一高さ位置に設けられている。
更に軸部２７には付勢部材として例えばコイルバネ４０が巻回されており、その一端はフレーム２８に係止され、他端は係止部３６に係止されている。支持部材２６は図２に示すように主ガイドローラ３１及びガイドローラ３８ａが直線状をなす位置（一点鎖線図示）と主ガイドローラ３１及び長板部２６ａが直線状をなす位置（実線図示）との間でなす適宜角度、例えば略９０度の角度範囲に亘って軸部２７を中心に回動可能とされている。しかもコイルバネ４０によって、主ガイドローラ３１及び長板部２６ａが直線状をなす位置方向に常時付勢されている。
また図３に示す第２戸車２４においては、第１戸車２３とほぼ同一の構成を備えており（同一符号を付している）、相違するところは支持部材２６の短板部２６ｂ′が第１戸車２３の短板部２６ｂより長く形成され、ガイドローラ３８ｂは第１戸車２３のガイドローラ３８ａより数が多く、例えば短板部２６ｂ′の長手方向に沿って２個設けられている。
そして図１に示すように各扉２２Ａ、２２Ｂにおいて、その上部裏面に例えば各１個の第１戸車２３と第２戸車２４とが所定間隔をおいて取り付けられ、下部裏面にもこれらに対向する位置にそれぞれ第１戸車２３と第２戸車２４とが同一の配列で取り付けられている。
【００１１】
第１及び第２戸車２３，２４の扉取り付け部３３，３３を装着する扉２２Ａ、２２Ｂの部分には図４に示すように扉嵌合部４２がそれぞれ設けられている。扉嵌合部４２は扉２２Ａ（２２Ｂ）の裏面に固着されたフランジ部４３内に扉取り付け部３３を嵌合させる凹陥部４４が形成され、凹陥部４４の両側面４４ａ、４４ａには深さ方向途中部分に係止溝４５、４５がそれぞれ形成されている。また扉２２Ａ（２２Ｂ）の上端面または下端面に位置するフランジ部４３の部分には凹陥部４４に連通する差し込み部４６が設けられ、扉取り付け部３３の嵌合時に扉取り付け部３３の基部が挿入されることになる。
そのため、凹陥部４４に第１または第２戸車２３，２４の扉取り付け部３３を挿入した際に扉取り付け部３３の両側の各係合部３５は弾性変形して挿入されて途中部分の係合凸部３５ｂが係止溝４５に係合し，自由端部の係合凸部３５ａがフランジ部４３と凹陥部４４の交差角部に係止することで連結される（図４（ｂ）参照）。
次に図１及び図５に示す各ガイドレール２１Ａ（及び２１Ｂ）は縦断面視で略コの字形のガイド壁４７を有していて開口部４７ａが上方（下方）を向いており、開口部４７ａの両側には幅の小さいガイド部４８，４８がガイドレール２１Ａ（２１Ｂ）の延在方向に沿って設けられている。そしてガイドレール２１Ａにおいて、扉２２Ａ及び扉２２Ｂの閉状態における第１及び第２戸車２３、２４の取り付け位置及び間隔に対応して裏面側のガイド部４８及び側壁４７の一部が切り欠かれた第１切り欠け部４９（空隙部）と第２切り欠け部５０（空隙部）とが形成されている。
【００１２】
ここで第１切り欠け部４９は第１戸車２３のガイドローラ３８ａ直径より若干長く形成され、支持部材２６が軸部２７を中心に回動した際に短板部２６ｂ及び１個のガイドローラ３８ａが第１切り欠け部４９から外部に突出可能としている。同様に第２切り欠け部５０は第２戸車２４の二つのガイドローラ３８ｂ、３８ｂ間長さより若干長く形成され、支持部材２６が回動した際に短板部２６ｂ′及び二個のガイドローラ３８ｂ、３８ｂが第２切り欠け部５０から外部に突出可能としている。しかも第１切り欠け部４９よりも第２戸車２４のガイドローラ３８ｂ及び３８ｂ間の長さの方が大きく、第２戸車２４のガイドローラ３８ｂ、３８ｂが第１切り欠け部４９を通過する際にで回動して外部に突出することはない。しかも二つの扉２２Ａ、２２Ｂを保持するガイドレール２１Ａ、２１Ｂはその長手方向に直交する２等分線に対して線対称に形成されており、２等分線からガイドレール２１Ａ、２１Ｂの各両端に向かって比較的近い位置にそれぞれ第１切り欠け部４９、４９が形成され、比較的遠い位置にそれぞれ第２切り欠け部５０，５０が形成されている。
【００１３】
図５に示すようにガイドレール２１Ａ（２１Ｂ）に第１及び第２戸車２３，２４を挿入した際、それぞれの支持部材２６はコイルバネ４０の付勢力に抗して主ガイドローラ３１とガイドローラ３８とが同一直線状をなすように収容されて、第１及び第２戸車２３，２４がガイドレール２Ａ（２１Ｂ）に沿って摺動可能とされ、この時、一対の走行ローラ２９、２９は開口部４７ａに対向する側壁４７底面４７ｂを走行し、主ガイドローラ３１及びガイドローラ３８はガイド部４８，４８に挟まれて開口部４７ａ上を走行することになる。
そのため扉２２Ａ，２２Ｂの各戸車２３，２４の各ガイドローラ３８ａ、３８ｂがガイドレール２１Ａ，２１Ｂ上から第１及び第２切り欠け部４９，５０に侵入した状態で、各支持部材２６，２６が回動するために両扉２２Ａ，２２Ｂは同一平面上に並ぶ閉状態になり（図７（ａ）参照）、一方の扉２２Ａは各戸車２３，２４が第１及び第２切り欠け部４９，５０から外れた状態で、閉状態位置にある他方の扉２２Ｂに対して扉の厚み方向にずれた走行可能状態になる（図７（ｃ）、図８参照）。
【００１４】
扉２２Ａと扉２２Ｂは閉状態で同一平面状に位置し、両扉２２Ａ、２２Ｂの当接部には例えば図６に示すようにゴムや合成樹脂等からなる弾性変形可能な当接部５１、５１を取り付けている。各当接部５１は例えば平面視フック型にされている。
当接部５１を支持する各扉２２Ａ、２２Ｂの保持部５２は断面視略凹曲線状に形成されている。閉状態の扉２２Ａ、２２Ｂの一方を押して開方向に移動させる際に各支持部材２６の長板部２６ａが軸部２７を中心に回動するために、各扉２２Ａ，２２Ｂの保持部５２と当接部５１は、相互に接触しないように長板部２６ａの回動円弧による当接部５１や保持部５２の回動軌跡より引っ込められている。
また図７（ａ）に示す扉２２Ａ、２２Ｂの平面視で、扉２２Ａの走行方向の全幅をＬとして第１戸車２３の扉取り付け部３３と扉２２Ａの扉嵌合部４２との連結部ａは例えば１／２Ｌの長さ位置にあり、第２戸車２４の扉取り付け部３３と扉２２Ａの扉嵌合部４２との連結部ｂは扉２２Ａの外端近傍に設けるものとする。
【００１５】
本実施の形態による引き戸２０は上述の構成を有しており、次に引き戸２０の組み立て方法と操作方法について説明する。
先ず二つの扉２２Ａ，２２Ｂを有する引き戸２０の組み立てに際して、図１に示すように側壁の上端と下端にそれぞれガイドレール２１Ａ、２１Ｂが設けられている。それぞれ各扉２２Ａ、２２Ｂに装着されるべき第１戸車２３及び第２戸車２４を一組として、各ガイドレール２１Ａ、２１Ｂに２組の第１戸車２３及び第２戸車２４をそれぞれ挿入する。
挿入に際して、第１戸車２３及び第２戸車２４の走行ローラ２９，２９をガイド壁部４７の開口部４７ａに対向する底面４７ｂに当接させると共に、コイルバネ４０の付勢力に抗してガイドローラ３８ａや３８ｂが主ガイドローラ３１、３１と直線状をなすようにした状態で開口部４７ａに挿入する（図１及び図５参照）。
これによりコイルバネ４０の付勢力に抗してガイドローラ３８ａ、３８ｂが主ガイドローラ３１と共にガイド部４８、４８に当接して開口部４７ａ内を摺動可能となることで、各支持部材２６の長板部２６ａは図１に示すようにガイドレール２１Ａ、２１Ｂに略直角に起立することになり、長板部２６ａの先端に扉取り付け部３３が位置する。
そして先ず扉２２Ａ、２２Ｂの一方、例えば扉２２Ａについて図１及び図４に示すように裏面上下端に各一対設けた各扉嵌合部４２を、それぞれ上下のガイドレール２１Ａ、２１Ｂの各第１戸車２３及び第２戸車２４の各扉取り付け部３３に嵌合することで扉２２Ａは裏面上端の第１及び第２戸車２３，２４と裏面下端の第１及び第２戸車２３，２４とに連結されてガイドレール２１Ａ、２１Ｂにスライド可能に保持されたことになる。
【００１６】
その後、扉２２Ａを若干スライドさせることで、図７（ａ）に示すように上下の第１戸車２３はガイドローラ３８ａ，３８ａがガイドレール２１Ａ、２１Ｂの第１切り欠け部４９、４９に至るために、コイルバネ４０の付勢力によって各支持部材２６が時計回りに回動する。これと同時に各扉の上下の第２戸車２４もガイドローラ３８ｂ、３８ｂが第２切り欠け部５０、５０に到達してコイルバネ４０の付勢力で同様に回動して第２切り欠け部５０、５０内に落ち込むために各支持部材２６が時計回りに回動する。
これによって扉２２Ａはガイドレール２１Ａ、２１Ｂに当接または近接する閉状態位置に変位する。
次に扉２２Ｂを上述した扉２２Ａと同様に各第１戸車２３及び第２戸車２４の各支持部材２６に連結して、各ガイドローラ３８ａ、３８ｂを第１切り欠け部４９、第２切り欠け部５０に落ち込ませることで各支持部材２６が図７（ａ）で反時計回りに回動してガイドレール２１Ａ、２１Ｂに当接または近接する閉状態位置に変位する。
この状態で図７（ａ）に示すように二つの扉２２Ａ、２２Ｂは同一平面状に並んで互いに当接する先端の当接部５１、５１同士が弾性的に当接した閉状態になる。
【００１７】
次にこのように組み立てられた引き戸２０の操作方法について図７及び図８により説明する。
先ず、図７（ａ）に示す二つの扉２２Ａ、２２Ｂの閉状態で一方の扉２２Ａを開けるために扉２２Ａを他方の扉２２Ｂ方向に押すと、扉２２Ａの第１戸車２３は第１切り欠け部４９から外に突出しているガイドローラ３８ａが開口部４７ａのガイド部４８に当接しつつガイドレール２１Ａ、２１Ｂ内に回動する。すると、支持部材２６がコイルバネ４０の付勢力に抗して軸部２７を中心に（図７では反時計方向に）回動することになる。
そのため、ガイドローラ３８ａはガイドレール２１Ａ、２１Ｂの開口部４７ａ内に戻りつつ主ガイドローラ３１がガイドレール２１Ａ、２１Ｂ内を走行し、長板部２６ａがガイドレール２１Ａ、２１Ｂから離間する方向に起立する（図７（ｂ）参照）。同時に第２戸車２４でもガイドローラ３８ｂ、３８ｂが第２切り欠け部５０の外からガイドレール２１Ａ、２１Ｂの開口部４７ａ内に戻りつつ主ガイドローラ３１がガイドレール２１Ａ、２１Ｂ内を走行し、長板部２６ａがガイドレール２１Ａ、２１Ｂから離間する方向に起立する。
これによって扉２２Ａはガイドレール２１Ａ、２１Ｂから離間し、他方の扉２２Ｂとは厚み方向にずれた位置に至るよう、長板部２６ａを半径として円弧を描いて扉２２Ｂと略平行状態を保ちつつ回動する（図７（ｃ）参照）。
【００１８】
そして図７（ｃ）に示すように支持部材２６の長板部２６ａがガイドレール２１Ａ、２１Ｂと略直交する位置に至ると主ガイドローラ３１とガイドローラ３８ａ，３８ｂとが開口部４７ａ内で直線状になって各戸車２３，２４の支持部材２６，２６の回動が終了し、扉２２Ａは静止状態の扉２２Ｂとは厚み方向に若干の隙間を以て完全に離間する。
更に扉２２Ａをスライドさせると、第１及び第２戸車２３，２４は扉２２Ｂの戸車２３，２４と同一のガイドレール２１Ａ、２１Ｂ上を摺動し、他方の扉２２Ｂと次第に重なる状態になる（図８（ａ）参照）。扉２２Ａをスライドさせる際、第１戸車２３に続いて第２戸車２４がガイドレール２１Ａ、２１Ｂを摺動し、その途中で第２戸車２４のガイドローラ３８ｂ、３８ｂが第１切り欠け部４９を通過するが、ガイドローラ３８ｂ、３８ｂは２つで構成されていて第１切り欠け部４９の長さより長いために、第１切り欠け部４９に落ち込んで支持部材２６が回動することはない。
そして扉２２Ａにおける移動方向先端側の第１戸車２３の主ガイドローラ３１が静止状態（閉位置）にある他方の扉２２Ｂの第１戸車２３の主ガイドローラ３１に当接した図８（ｂ）に示す位置で停止し、開状態となる。尚、ガイドレール２１Ａ，２１Ｂ内で走行ローラ２９または主ガイドローラ３１の停止位置近傍にブレーキ機構を設けても良い。
【００１９】
尚、図８（ｂ）で見ると一方の扉２２Ａと他方の扉２２Ｂとの重なる割合は小さく見えるが、各扉２２Ａ、２２Ｂの第１戸車２３の主ガイドローラ３１の位置を第２戸車２４により近接した位置またはガイドレール２１Ａ、２１Ｂのより外端に近接した位置に設ければ、二つの扉２２Ａ、２２Ｂをほぼ全体に重ねることができる。
また開状態の扉２２Ａを閉状態にするには扉２２Ａを他方の扉２２Ｂから離れる方向にスライドさせればよい。
この場合、第１及び第２戸車２３，２４がガイドレール２１Ａ、２１Ｂを摺動して、それぞれ第１切り欠け部４９及び第２切り欠け部５０に至るとコイルバネ４０の付勢力で各支持部材２６が回動して扉２２Ａがガイドレール２１Ａ、２１Ｂに密着または近接して他方の扉２２Ｂと同一平面状に並ぶ閉状態になる（図７（ａ）参照）。
【００２０】
上述のように本実施の形態による引き戸２０によれば、閉状態で二つの扉２２Ａ、２２Ｂが同一平面状に並んで当接状態になるために、扉同士に段差が発生することなく美観を得られる。しかも１条のガイドレール２１Ａ、２１Ｂ上で二つの扉２２Ａ，２２Ｂを択一的に開閉操作できるから省スペース化でき、開閉操作に際して両扉２２Ａ，２２Ｂが衝突することもなく他方の扉２２Ｂに対して厚み方向にずれた位置でスライドするから良好な操作性が得られる。
【００２１】
次に本実施の形態の変形例について図９乃至図１１により説明する。
上述の実施の形態では、図５（ｂ）に示すように扉２２Ａ、２２Ｂの上下対向する位置に設けた第１戸車２３，２３、第２戸車２４、２４に関してそれぞれ支持部材２６が上下方向の遠い側に、走行ローラ２９，２９が上下方向の近い側に対向して位置するようにガイドレール２１Ａ、２１Ｂに収納されている構成としたが、本変形例では、図９及び図１１に示すように、扉２２Ａ、２２Ｂの上下対向する位置に設けた第１戸車２３，２３、第２戸車２４、２４に関してそれぞれ支持部材２６が下側に、走行ローラ２９，２９が上側に位置するように同一方向に並べた状態でガイドレール２１Ａ、２１Ｂに収納されている構成を有している。
そのため、図１０に示すガイドレール５２Ａ（５２Ｂ）では、ガイド壁部４７に関して開口部４７ａが下面に形成され、開口部４７ａの両側にガイド部４８，４８が設けられている。またコの字型のガイド壁部４７において裏面側の側壁５３にその長手方向に沿って第１切り欠け部４９と第２切り欠け部５０が所定間隔で穿孔されている。
【００２２】
そして上部のガイドレール５２Ａは図９及び図１１に示すように、開口部４７ａに対向する底面４７ｂが天板１の下面側に取り付けられ、天板１の端部にはガイドレール５２Ａを隠すように突出部５４が形成されている。更に開口部４７ａから下側の支持部材２６や主ガイドローラ３１及びガイドローラ３８ａが下方に露出するので、側壁５３から下方に延びる断面略Ｌ字形のカバー部５５を設けて支持部材２６等を覆っている。
また下部のガイドレール５２Ｂも開口部４７ａを下側に向けて地板２の下側に取り付けられており、開口部４７ａから露出する支持部材２６や主ガイドローラ３１及びガイドローラ３８ｂ等は目視しにくい位置にあるためにカバー部材は取り付けていない。
【００２３】
尚、上述の実施の形態では引き戸２０を構成する２枚の扉２２Ａ、２２Ｂについて、それぞれ上下に第１及び第２戸車２３，２４をそれぞれ取り付けて上下のガイドレール２１Ａ、２１Ｂを走行するようにしたが、本発明はこのような構成に限定されることなく扉２２Ａ、２２Ｂの上部または下部の一方のみに戸車２３，２４を設けるようにしてもよい。この場合、戸車２３，２４とガイドレールを設けない他方の部分には単にローラを設けるだけでもよいし、設けなくても良い。
また、上述の実施の形態では引き戸２０について説明したが、本発明による第１戸車２３及び第２戸車２４とガイドレール２１Ａ（２１Ｂ）からなる戸車機構は、引き戸に限定されることなく各種の走行機構として用いることができる。しかも走行時における走行機構で支持される扉等の部材の走行位置と停止時における扉等の部材の停止位置とをその部材の厚み方向にずらすことで、扉等の部材は停止状態で同一面上に複数並べたり別個の部材と並べたりすることができ、走行時に他の扉等の部材や別個の部材等が障害となることなくスムーズに走行可能となる。
【００２４】
【発明の効果】
上述のように本発明による走行機構によれば、支持部材で支持された扉等の部材は走行機構の走行時と非走行時とでその位置を変位させることができ、１条の直線状のガイドレールで複数の扉等の部材を保持して走行でき、省スペースを達成できる上に非走行時には複数の扉等の部材を並べることができて見栄えがよい。
【００２５】
また本発明による引き戸によれば、扉の開閉操作時には閉状態の位置から扉をずらせて走行をスムーズに行うことができ、扉の閉状態では扉を同一面上に並べて段差を生じないので見栄えがよい。しかも扉の操作に際して１条の直線状のガイドレールで操作できるために省スペース化できて操作性がよい。
【図面の簡単な説明】
【図１】本発明の実施の形態による引き戸の部分構成を示す斜視図である。
【図２】図１に示す引き戸に取り付けられる第１戸車の斜視図である。
【図３】図１に示す引き戸に取り付けられる第２戸車の斜視図である。
【図４】戸車に設けた支持部材の扉取り付け部と扉に取り付けた扉嵌合部とを示すものであって、（ａ）は装着前の要部斜視図、（ｂ）は扉取り付け部と扉嵌合部との装着状態を示す水平断面図である。
【図５】ガイドレールに第１戸車が収納された状態を示すもので、（ａ）は平面図、（ｂ）は縦断面図である。
【図６】扉の先端部を示す部分平面図である。
【図７】引き戸の開閉操作を示す平面図であって、（ａ）は閉状態、（ｂ）は開放操作開始時、（ｃ）は開放操作途中状態を示す図である。
【図８】引き戸の開閉操作を示す平面図であって、（ａ）は開放操作が更に進んだ状態、（ｂ）は開状態を示す図である。
【図９】実施の形態の変形例を示す引き戸の一方の扉の縦断面図である。
【図１０】図９に示す引き戸のガイドレールの部分斜視図である。
【図１１】図９に示す引き戸の開状態における縦断面図である。
【図１２】（ａ）、（ｂ）、（ｃ）は従来の引き戸の戸車機構を示す図である。
【符号の説明】
２０引き戸
２１Ａ，２１Ｂガイドレール
２２Ａ，２２Ｂ扉
２３第１戸車（車輪部）
２４第２戸車（車輪部）
２６支持部材
２６ａ長板部（第一部材）
２６ｂ、２６ｂ′ 短板部（第二部材）
２９走行ローラ（走行車輪）
３１主ガイドローラ
３８ａ，３８ｂガイドローラ（ガイド部）
４０コイルバネ（付勢部材）
４９第一切り欠け部（空隙部）
５０第二切り欠け部（空隙部）[0001]
BACKGROUND OF THE INVENTION
The present invention is used for sliding doors for various storage such as chests, cupboards, cabinets, etc., and these sliding doors. Traveling mechanism About.
[0002]
[Prior art]
Conventionally, as a sliding door for opening and closing used for various types of storage, usually two flat doors are slidably attached to each of the upper and lower rails and guides, and one or both doors can be opened and closed. Operated.
An example of this will be described with reference to FIG. 12. In the sliding door of FIG. 12A, two guide rails 3 and two lower rails 4 are provided on the top plate 1 and the base plate 2, respectively, and slide on these. The two doors 5 that can be fitted with each other are provided with a guide 6 that contacts the guide rail 3 at the upper part of the rear surface and a door wheel 7 that slides on the lower rail 4 at the lower part of the rear surface.
In the sliding door of FIG. 12B, runners 8 are respectively attached to the upper portions of the two doors 5 and guide grooves 9 are formed at the lower portions thereof, while the top plate 1 rotatably accommodates the runners 8. An upper guide rail portion 10A for suspending the door 5 is provided, and a lower guide 10B that is slidably inserted into each guide groove 9 is provided on the floor 2A.
Moreover, in FIG.12 (c), the runner 11 is each attached to the back surface upper part of the two doors 5, and the guide roller 12 is fixed to each back surface lower part. An upper rail 13 that receives each runner 11 is fixed to the top plate 1, and a lower rail 14 that receives each guide roller 12 is fixed to the base plate 2.
And since the sliding door which has each above-mentioned composition is a sliding structure, opening and closing operation is performed by making two doors run along running roads, such as a separate rail, respectively. Therefore, the two doors are overlapped in the thickness direction on the two running paths in the open state, and a step is provided in the thickness direction in a closed state so as not to overlap each other.
[0003]
[Problems to be solved by the invention]
However, with such a sliding structure, a travel space for two doors and two travel paths are required in the thickness direction of the door, and there is a drawback in that the appearance is impaired because a step is generated particularly in the closed state where the door is closed. is there.
In view of such a situation, the present invention makes it possible to run by holding a member such as a door with a single guide rail. Good operability Traveling Provide mechanism and sliding door The purpose is to do.
[0004]
[Means for Solving the Problems]
A traveling mechanism according to the present invention includes a traveling wheel and A main guide roller coupled to the traveling wheel; A support member rotatably held on the traveling wheel, and provided on the support member Guide roller And a wheel portion provided with a biasing member that biases the support member in a rotating direction, and a traveling wheel, Main guide roller and guide roller And urging member Guide roller A gap is provided to allow the support member to rotate by releasing One straight line With guide rails, The support member is caused to travel in a state where the traveling wheel, the main guide roller, and the guide roller are accommodated in the guide rail, and the support member is stopped in a state where the guide roller has escaped from the gap portion of the guide rail. To .
A member such as a door supported by the support member can move integrally when the wheel portion travels along the guide rail when traveling, and the guide portion is moved to the gap portion by the urging force of the urging member when not traveling. Since the support member rotates by escaping, the member such as the door is displaced in a direction crossing the traveling direction, and the member such as the door can move its position when traveling and when not traveling. Yes, one article Linear The guide rails can hold the members such as a plurality of doors and shift the positions to achieve space saving, and the members such as the plurality of doors can be arranged at the time of non-traveling.
[0005]
Also according to the present invention sliding door Is In a sliding door in which a plurality of doors attached to a guide rail move along the guide rail to take an open state and a closed state shifted from each other, a traveling wheel is connected to the traveling wheel. The main guide roller, the support member rotatably supported by the traveling wheel, the door wheel provided with the guide roller provided on the support member, and the traveling wheel, the main guide roller, and the guide roller can travel. And a linear guide rail provided with a space for rotating the support member by letting the guide roller escape, and the support member is connected to the support member, and the support member rotates to the surface. The door moves in the intersecting direction, and the one roller is moved in the direction intersecting the surface in the state that the guide roller is housed in the guide rail together with the traveling wheel and the main guide roller. Travelable and then along a guide rail Te, guide rollers, characterized in that the one door in a state of escaping the air gap of the guide rail and to take a closed state shifted to and from another door .
Since one door is displaced in a direction that overlaps with the other doors by pushing one door during driving, the other doors can be smoothly opened and closed without becoming a barrier, and in the closed state Since the doors are arranged on the same surface, the operability is good when the door is opened and closed, and in the closed state, the doors are arranged on the same surface and no difference in level is produced. Moreover, Traveling wheels when traveling to open and close one door And main guide roller and guide roller Is stored in the guide rail, and when the door is closed, Guide roller Rotate the support member by releasing That door Move in a direction that intersects the door surface. for that reason, Other doors Against One door Can be run on the same guide rail, and the doors can be arranged on the same surface in the closed state.
[0006]
Also, in the door cart Guide roller There may be provided a biasing member that biases the guide rail in the direction of escaping to the gap of the guide rail.
If the guide part reaches the gap of the guide rail when the door is running, it automatically escapes to the gap and opens the door. The face of the door It can be moved in the direction that intersects.
The support member It is formed in a substantially L shape, The first member to which the door is connected; Guide roller May be provided.
When the guide part escapes into the gap of the guide rail together with the second member, the first member rotates together and the door That Move in a direction that intersects the face of the door.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS.
1 is a perspective view of a main part of a sliding door according to an embodiment, FIG. 2 is a perspective view showing a first door wheel attached to each door, FIG. 3 is a perspective view showing a second door wheel attached to each door, and FIG. And (a) is a perspective view before mating, (b) is a horizontal sectional view in a mated state, and FIG. 5 is a guide rail attached to the door on a guide rail. It shows the housed state, (a) is a plan view of the main part, (b) is a vertical sectional view of the main part, FIG. 6 is a diagram showing the tip of the door, FIG. 7 is a process for operating the sliding door, (A) is a closed state, (b) is an opening operation start state, (c) is a view showing an opening operation halfway state, FIG. 8 is a drawing showing a sliding door operation process, (a) is an opening operation halfway state, ( b) is a diagram showing an open state. The sliding door 20 according to the embodiment shown in FIG. 1 is provided with a single guide rail 21A, 21B on the upper and lower ends (or top plate and base plate) of the side wall. A plurality of, for example, two doors 22A and 22B are provided with two door wheels 23 and 24 on the upper and lower back surfaces (only one door is shown in FIG. 1). Each door 22A, 22B is slidably held by guide rails 21A, 21B. The doors 23 and 24 attached to the upper parts of the doors 22A and 22B and the door cars 23 and 24 attached to the lower parts of the doors 23A and 24B have opposite directions (line symmetry), but have the same function. In the following description, the same reference numerals are used.
Moreover, the two doors 22A and 22B are provided so as to be able to run on the upper and lower guide rails 21A and 21B, and the doors 22A and 22B are arranged on a plane in the closed state and overlap each other in the opened state or the running state. It shifts in the thickness direction.
[0009]
The two door wheels 23 and 24 provided on the upper and lower back surfaces of each door 22A (22B) have the configuration shown in FIGS. 2 and 3, with one being the first door wheel 23 and the other being the second door wheel. 24.
In the first door wheel 23 shown in FIG. 2, for example, a shaft portion 27 is rotatably mounted on a bent portion of a support member 26 having a substantially L-shaped plate shape, and the other end of the shaft portion 27 is, for example, a semi-cylindrical shape. The frame 28 is fixed. A rotating shaft 28a is penetrated and supported by the frame 28, and a pair of traveling rollers 29, 29 (traveling wheels) with the rotating shaft 28a as a rotation center are rotatably provided on both sides of the frame 28. The outer peripheral surface of the traveling roller 29 protrudes outward from the frame 28.
A substantially L-shaped plate portion 30 is integrally formed on the outer peripheral surface of the frame 28, and one plate-like portion 30a of the plate portion 30 extends substantially parallel to the support member 26 and is substantially the same as the plate-like portion 30a. A main guide roller 31 is rotatably supported in parallel.
The support member 26 forms a substantially L-shape including a long plate portion 26a (first member) and a short plate portion 26b (second member), and the first end of the long plate portion 26a has a first end door. A door mounting portion 33 for mounting 23 to the door 22A is provided. The door mounting portion 33 is formed by, for example, a substantially rectangular parallelepiped main body 34 and elastically deformable engaging portions 35 and 35 provided on both sides thereof, and each engaging portion 35 is a stepped plate shape and is free. Engagement convex portions 35a and 35b are provided at the end portion and the middle portion, respectively. Further, a locking portion 36 is provided between the door mounting portion 33 and the shaft portion 27 of the long plate portion 26a.
[0010]
An appropriate number, for example, one guide roller 38a is rotatably provided on the short plate portion 26b along the extending direction thereof, and the guide roller 38a is on a surface substantially parallel to the main guide roller 31 and preferably the support member 26. Are provided at the same height position.
Further, for example, a coil spring 40 is wound around the shaft portion 27 as an urging member, one end of which is locked to the frame 28, and the other end is locked to the locking portion 36. As shown in FIG. 2, the support member 26 has a position where the main guide roller 31 and the guide roller 38a form a straight line (shown by an alternate long and short dash line), and a position where the main guide roller 31 and the long plate portion 26a form a straight line (shown by a solid line). It is possible to rotate around the shaft portion 27 over an appropriate angle between them, for example, an angle range of approximately 90 degrees. In addition, the main guide roller 31 and the long plate portion 26a are always urged by the coil spring 40 in a linear position direction.
The second door 24 shown in FIG. 3 has substantially the same configuration as that of the first door 23 (the same reference numerals are given), and the difference is that the short plate portion 26b ′ of the support member 26 is the first. The guide roller 38b is formed to be longer than the short plate portion 26b of the one door wheel 23, and there are more guide rollers 38a than the guide roller 38a of the first door wheel 23. For example, two guide rollers 38b are provided along the longitudinal direction of the short plate portion 26b '.
As shown in FIG. 1, in each door 22A, 22B, for example, each one first door wheel 23 and second door wheel 24 is attached to the upper back surface at a predetermined interval, and the lower back surface also faces them. The first door wheel 23 and the second door wheel 24 are attached to the positions in the same arrangement.
[0011]
As shown in FIG. 4, door fitting portions 42 are respectively provided in the portions of the doors 22 A and 22 B to which the door mounting portions 33 and 33 of the first and second door pulleys 23 and 24 are attached. The door fitting portion 42 is formed with a recessed portion 44 for fitting the door mounting portion 33 in a flange portion 43 fixed to the back surface of the door 22A (22B), and a depth is formed on both side surfaces 44a and 44a of the recessed portion 44. Locking grooves 45 and 45 are formed in the middle part in the direction. Further, an insertion portion 46 communicating with the recessed portion 44 is provided in a portion of the flange portion 43 located on the upper end surface or the lower end surface of the door 22A (22B), and the base portion of the door attachment portion 33 is provided when the door attachment portion 33 is fitted. Will be inserted.
Therefore, when the door mounting part 33 of the 1st or 2nd door wheel 23 and 24 is inserted in the recessed part 44, each engaging part 35 of the both sides of the door mounting part 33 is elastically deformed, and is inserted in the middle part. The convex portion 35b engages with the locking groove 45, and the engaging convex portion 35a at the free end is connected by being locked to the intersecting corner portion of the flange portion 43 and the recessed portion 44 (see FIG. 4B). ).
Next, each guide rail 21A (and 21B) shown in FIGS. 1 and 5 has a substantially U-shaped guide wall 47 in a longitudinal sectional view, and an opening 47a faces upward (downward). On both sides of 47a, narrow guide portions 48, 48 are provided along the extending direction of the guide rail 21A (21B). In the guide rail 21A, the guide portion 48 on the back side and a part of the side wall 47 are cut out corresponding to the mounting positions and intervals of the first and second door wheels 23 and 24 in the closed state of the door 22A and the door 22B. A first cutout portion 49 (gap portion) and a second cutout portion 50 (gap portion) are formed.
[0012]
Here, the first cutout portion 49 is formed slightly longer than the diameter of the guide roller 38a of the first door wheel 23, and when the support member 26 rotates about the shaft portion 27, the short plate portion 26b and one guide roller 38a. Can protrude from the first cutout portion 49 to the outside. Similarly, the second cutout portion 50 is formed slightly longer than the length between the two guide rollers 38b, 38b of the second door wheel 24, and the short plate portion 26b ′ and the two guide rollers 38b when the support member 26 rotates. , 38b can protrude from the second cutout portion 50 to the outside. In addition, the length between the guide rollers 38 b and 38 b of the second door wheel 24 is larger than that of the first notch portion 49, and the guide rollers 38 b and 38 b of the second door wheel 24 pass through the first notch portion 49. It does not rotate and project outside. In addition, the guide rails 21A and 21B that hold the two doors 22A and 22B are formed symmetrically with respect to the bisector perpendicular to the longitudinal direction, and each end of the guide rails 21A and 21B from the bisector. First cutout portions 49 and 49 are formed at positions relatively close to each other, and second cutout portions 50 and 50 are formed at positions relatively far from each other.
[0013]
As shown in FIG. 5, when the first and second door pulleys 23 and 24 are inserted into the guide rail 21 A (21 B), each support member 26 resists the urging force of the coil spring 40 and the main guide roller 31 and the guide roller 38. And the first and second door pulleys 23 and 24 are slidable along the guide rail 2A (21B). At this time, the pair of running rollers 29 and 29 are opened. The main guide roller 31 and the guide roller 38 travel between the guide portions 48 and 48 and travel on the opening 47a.
Therefore, each support member 26, 26 is in a state where the guide rollers 38a, 38b of the door wheels 23, 24 of the doors 22A, 22B have entered the first and second cutout portions 49, 50 from above the guide rails 21A, 21B. In order to rotate, both doors 22A and 22B are in a closed state aligned on the same plane (see FIG. 7 (a)), and one door 22A has the first and second cutout portions 49, In a state of being out of 50, the other door 22B in the closed position is in a travelable state shifted in the door thickness direction (see FIGS. 7C and 8).
[0014]
The door 22A and the door 22B are closed and located on the same plane, and the contact portions of both the doors 22A and 22B are elastically deformable contact portions 51 made of rubber or synthetic resin, for example, as shown in FIG. 51 is attached. Each contact portion 51 is, for example, a hook type in a plan view.
The holding portions 52 of the doors 22A and 22B that support the contact portion 51 are formed in a substantially concave curve shape in a sectional view. When the one of the closed doors 22A and 22B is pushed and moved in the opening direction, the long plate portion 26a of each support member 26 rotates about the shaft portion 27, so that the holding portions 52 of the doors 22A and 22B The contact portions 51 are retracted from the rotation locus of the contact portion 51 and the holding portion 52 by the rotation arc of the long plate portion 26a so as not to contact each other.
Further, in a plan view of the doors 22A and 22B shown in FIG. 7A, the connecting portion a between the door mounting portion 33 of the first door wheel 23 and the door fitting portion 42 of the door 22A, where L is the total width in the traveling direction of the door 22A. Is, for example, at a length of 1/2 L, and the connecting portion b between the door mounting portion 33 of the second door wheel 24 and the door fitting portion 42 of the door 22A is provided near the outer end of the door 22A.
[0015]
The sliding door 20 according to the present embodiment has the above-described configuration. Next, an assembly method and an operation method of the sliding door 20 will be described.
First, when assembling the sliding door 20 having two doors 22A and 22B, as shown in FIG. 1, guide rails 21A and 21B are provided at the upper and lower ends of the side walls, respectively. The first door wheel 23 and the second door wheel 24 to be mounted on the doors 22A and 22B are set as a set, and the two sets of the first door wheel 23 and the second door wheel 24 are inserted into the guide rails 21A and 21B, respectively.
At the time of insertion, the running rollers 29 and 29 of the first door wheel 23 and the second door wheel 24 are brought into contact with the bottom surface 47b facing the opening 47a of the guide wall portion 47, and the guide roller 38a is resisted against the urging force of the coil spring 40. And 38b are inserted into the opening 47a in a state of being linear with the main guide rollers 31, 31 (see FIGS. 1 and 5).
As a result, the guide rollers 38 a and 38 b abut against the guide portions 48 and 48 together with the main guide roller 31 against the urging force of the coil spring 40 and can slide in the opening 47 a, so that the length of each support member 26 is increased. As shown in FIG. 1, the plate portion 26 a stands up substantially at right angles to the guide rails 21 A and 21 B, and the door mounting portion 33 is located at the tip of the long plate portion 26 a.
First, one door 22A, 22B, for example, the door 22A, as shown in FIGS. 1 and 4, each door fitting portion 42 provided on each of the upper and lower sides of the back surface is respectively connected to the first of the upper and lower guide rails 21A, 21B. The door 22A is connected to the first and second door pulleys 23, 24 at the upper end of the back surface and the first and second door wheels 23, 24 at the lower end of the back surface by fitting to the door mounting portions 33 of the door wheel 23 and the second door wheel 24. Thus, the guide rails 21A and 21B are slidably held.
[0016]
Thereafter, by sliding the door 22A slightly, the guide rollers 38a, 38a reach the first cutout portions 49, 49 of the guide rails 21A, 21B in the upper and lower first door wheels 23 as shown in FIG. 7A. Further, each support member 26 is rotated clockwise by the biasing force of the coil spring 40. At the same time, the guide rollers 38b, 38b reach the second cutout portions 50, 50 in the second upper and lower doors 24 above and below the doors and rotate in the same manner by the urging force of the coil spring 40. Each support member 26 rotates clockwise to fall into 50.
As a result, the door 22A is displaced to the closed position in contact with or close to the guide rails 21A and 21B.
Next, the door 22B is connected to the support members 26 of the first door wheel 23 and the second door wheel 24 in the same manner as the door 22A described above, and the guide rollers 38a and 38b are connected to the first notch 49 and the second notch. Each support member 26 is rotated counterclockwise in FIG. 7A by being lowered into the portion 50 and is displaced to a closed position in contact with or close to the guide rails 21A and 21B.
In this state, as shown in FIG. 7 (a), the two doors 22A and 22B are in a closed state in which the contact portions 51 and 51 at the tips that contact each other are aligned in the same plane and elastically contact each other.
[0017]
Next, the operation method of the sliding door 20 assembled in this way will be described with reference to FIGS.
First, when the door 22A is pushed in the direction of the other door 22B in order to open one door 22A in the closed state of the two doors 22A and 22B shown in FIG. 7A, the first door wheel 23 of the door 22A is first cut. Guide protruding outward from the chipped portion 49 roller 38a rotates into the guide rails 21A and 21B while contacting the guide portion 48 of the opening 47a. Then, the support member 26 rotates about the shaft portion 27 against the urging force of the coil spring 40 (counterclockwise in FIG. 7).
Therefore, guide roller The main guide roller 31 travels in the guide rails 21A and 21B while returning to the openings 47a of the guide rails 21A and 21B, and the long plate portion 26a stands up in a direction away from the guide rails 21A and 21B (see FIG. 7). (See (b)). At the same time guide in the second door car 24 roller The main guide roller 31 travels inside the guide rails 21A and 21B while returning from the outside of the second notch 50 into the openings 47a of the guide rails 21A and 21B, and the long plate portion 26a is connected to the guide rail 21A. Stands up in a direction away from 21B.
As a result, the door 22A is separated from the guide rails 21A and 21B, and is kept in a state substantially parallel to the door 22B by drawing an arc with the long plate portion 26a as a radius so as to reach a position shifted from the other door 22B in the thickness direction. It rotates (see FIG. 7C).
[0018]
Then, as shown in FIG. 7C, when the long plate portion 26a of the support member 26 reaches a position substantially orthogonal to the guide rails 21A, 21B, the main guide roller 31 and the guide rollers 38a, 38b are straight in the opening 47a. Thus, the rotation of the support members 26 and 26 of the door rollers 23 and 24 is completed, and the door 22A is completely separated from the stationary door 22B with a slight gap in the thickness direction.
When the door 22A is further slid, the first and second doors 23 and 24 slide on the same guide rails 21A and 21B as the doors 23 and 24 of the door 22B and gradually overlap the other door 22B ( (See FIG. 8 (a)). When sliding the door 22A, the second door 24 slides on the guide rails 21A and 21B following the first door 23, and the guide rollers 38b and 38b of the second door 24 pass the first notch 49 along the way. Although it passes, since the guide rollers 38b, 38b are composed of two and are longer than the length of the first notch 49, the support roller 26 does not fall into the first notch 49 and rotate.
Then, the main guide roller 31 of the first door wheel 23 on the front end side in the moving direction of the door 22A is in contact with the main guide roller 31 of the first door wheel 23 of the other door 22B in the stationary state (closed position). Stops at the position shown in FIG. A brake mechanism may be provided in the vicinity of the stop position of the traveling roller 29 or the main guide roller 31 in the guide rails 21A and 21B.
[0019]
8B, the overlapping ratio of the one door 22A and the other door 22B appears to be small, but the position of the main guide roller 31 of the first door 23 of each door 22A, 22B is the second door 24. If the doors 22A and 22B are provided at positions closer to each other or closer to the outer ends of the guide rails 21A and 21B, the two doors 22A and 22B can be almost overlapped.
Moreover, what is necessary is just to slide the door 22A in the direction which leaves | separates from the other door 22B in order to make the door 22A of an open state closed.
In this case, when the first and second door wheels 23 and 24 slide on the guide rails 21A and 21B and reach the first cutout portion 49 and the second cutout portion 50, respectively, the supporting members are urged by the biasing force of the coil spring 40. 26 is rotated, and the door 22A is brought into close contact with or close to the guide rails 21A and 21B to be in a closed state aligned with the other door 22B (see FIG. 7A).
[0020]
As described above, according to the sliding door 20 according to the present embodiment, since the two doors 22A and 22B are in contact with each other in the same plane in the closed state, the door can be aesthetically produced without any step difference. can get. Moreover, since the two doors 22A and 22B can be selectively opened and closed on one guide rail 21A and 21B, the space can be saved, and both doors 22A and 22B do not collide during the opening and closing operation. On the other hand, since it slides at a position shifted in the thickness direction, good operability is obtained.
[0021]
Next, modified examples of the present embodiment will be described with reference to FIGS.
In the above-described embodiment, as shown in FIG. 5 (b), the support members 26 are arranged in the vertical direction with respect to the first door wheel 23, 23 and the second door wheel 24, 24 provided at the vertically opposite positions of the doors 22A, 22B. The travel rollers 29 and 29 are accommodated in the guide rails 21A and 21B on the far side so as to be opposed to the near side in the vertical direction. In this modified example, as shown in FIGS. As described above, the support member 26 is located on the lower side and the running rollers 29 and 29 are located on the upper side with respect to the first doors 23 and 23 and the second doors 24 and 24 provided at positions vertically opposite to the doors 22A and 22B. It has the structure accommodated in guide rail 21A, 21B in the state arranged in the same direction.
Therefore, in the guide rail 52A (52B) shown in FIG. 10, the opening 47a is formed on the lower surface of the guide wall 47, and the guides 48, 48 are provided on both sides of the opening 47a. Further, in the U-shaped guide wall portion 47, a first notch portion 49 and a second notch portion 50 are perforated at a predetermined interval along the longitudinal direction of the side wall 53 on the back surface side.
[0022]
9 and 11, the upper guide rail 52A has a bottom surface 47b facing the opening 47a attached to the lower surface side of the top plate 1, and hides the guide rail 52A at the end of the top plate 1. A protrusion 54 is formed on the surface. Further, since the lower support member 26, the main guide roller 31, and the guide roller 38a are exposed downward from the opening 47a, a cover portion 55 having a substantially L-shaped cross section extending downward from the side wall 53 is provided to cover the support member 26 and the like. ing.
The lower guide rail 52B is also attached to the lower side of the main plate 2 with the opening 47a facing downward, and the support member 26, the main guide roller 31 and the guide roller 38b exposed from the opening 47a are difficult to see. The cover member is not attached because it is in position.
[0023]
In the above-described embodiment, the two doors 22A and 22B constituting the sliding door 20 are mounted on the upper and lower guide rails 21A and 21B by attaching the first and second door pulleys 23 and 24, respectively. However, the present invention is not limited to such a configuration, and the doors 23 and 24 may be provided only on one of the upper or lower portions of the doors 22A and 22B. In this case, the rollers may or may not be provided in the other portion where the doors 23 and 24 and the guide rail are not provided.
Moreover, although the sliding door 20 was demonstrated in the above-mentioned embodiment, the door car mechanism which consists of the 1st door wheel 23 and the 2nd door wheel 24 and guide rail 21A (21B) by this invention is not limited to a sliding door, but various driving | running | working. It can be used as a mechanism. In addition, by shifting the travel position of the member such as the door supported by the travel mechanism during travel and the stop position of the member such as the door when stopped in the thickness direction of the member, the member such as the door is in the same plane in the stopped state. A plurality of members can be arranged on top of each other or can be arranged with separate members so that other members such as other doors, separate members and the like can be smoothly traveled during travel.
[0024]
【The invention's effect】
As described above, according to the traveling mechanism of the present invention, a member such as a door supported by the support member can be displaced in position when the traveling mechanism is traveling and when it is not traveling. Linear It can run while holding a plurality of members such as doors with a guide rail, and space saving can be achieved, and a plurality of members such as a plurality of doors can be arranged during non-traveling.
[0025]
Also according to the present invention sliding door According to the above, when the door is opened and closed, the door can be shifted smoothly from the closed position, and when the door is closed, the doors are arranged on the same surface and no difference in level is produced, so that the appearance is good. Moreover, when operating the door, Linear Because it can be operated with a guide rail, it can save space and has good operability.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a partial configuration of a sliding door according to an embodiment of the present invention.
FIG. 2 is a perspective view of a first door pulley attached to the sliding door shown in FIG.
3 is a perspective view of a second door pulley attached to the sliding door shown in FIG. 1. FIG.
FIGS. 4A and 4B show a door attachment portion of a support member provided on the door pulley and a door fitting portion attached to the door, wherein FIG. 4A is a perspective view of a main part before mounting, and FIG. 4B is a door attachment portion. It is a horizontal sectional view which shows the mounting state with a door fitting part.
FIGS. 5A and 5B show a state in which the first door is stored in the guide rail, wherein FIG. 5A is a plan view and FIG. 5B is a longitudinal sectional view.
FIG. 6 is a partial plan view showing a front end portion of the door.
FIGS. 7A and 7B are plan views showing a sliding door opening / closing operation, where FIG. 7A is a closed state, FIG. 7B is a diagram showing a state in the middle of the opening operation, and FIG.
FIGS. 8A and 8B are plan views showing a sliding door opening / closing operation, in which FIG. 8A shows a state in which the opening operation has further progressed, and FIG. 8B shows an open state;
FIG. 9 is a longitudinal sectional view of one door of a sliding door showing a modification of the embodiment.
10 is a partial perspective view of a guide rail of the sliding door shown in FIG.
11 is a longitudinal sectional view of the sliding door shown in FIG. 9 in an open state.
FIGS. 12A, 12B, and 12C are diagrams showing a conventional sliding door door mechanism. FIG.
[Explanation of symbols]
20 Sliding door
21A, 21B Guide rail
22A, 22B door
23 First door (wheel)
24 Second door (wheel)
26 Support member
26a Long plate part (first member)
26b, 26b 'short plate part (second member)
29 Traveling roller (traveling wheel)
31 Main guide roller
38a, 38b Guide roller (guide part)
40 Coil spring (biasing member)
49 First notch (void)
50 Second notch (void)

Claims

A traveling wheel, a main guide roller coupled to the traveling wheel, a support member rotatably held on the traveling wheel, a guide roller provided on the support member, and a rotation of the support member A wheel portion provided with a biasing member that biases in a direction to perform,
A linear guide rail that accommodates the traveling wheel, the main guide roller, and the guide roller so as to be able to travel, and is provided with a space that allows the guide roller to escape by the biasing member and rotate the support member; With
The support member is caused to travel in a state where the traveling wheel, the main guide roller, and the guide roller are accommodated in the guide rail, and the support member is stopped in a state where the guide roller has escaped from the gap portion of the guide rail. A traveling mechanism characterized .

In a sliding door in which a plurality of doors attached to the guide rail are moved along the guide rail and overlapped with each other and in a closed state shifted from each other,
A door wheel including a traveling wheel, a main guide roller coupled to the traveling wheel, a support member rotatably held on the traveling wheel, and a guide roller provided on the support member;
A single linear guide rail that accommodates the traveling wheel, the main guide roller, and the guide roller so as to be able to travel and is provided with a gap that rotates the support member by escaping the guide roller;
The door is connected to each of the support members and moves in a direction intersecting the surface by rotating the support member,
In a state where the guide roller is housed in the guide rail together with the traveling wheel and the main guide roller, the door can be moved along the guide rail so as to be able to travel along the guide rail. A sliding door characterized in that the one door is in a closed state in which it is displaced from the other door in a state where it escapes into the gap .

The sliding door according to claim 2, wherein the door roller is provided with a biasing member that biases the guide roller in a direction in which the guide roller escapes to the gap of the guide rail.

4. The sliding door according to claim 2, wherein the support member is formed in a substantially L shape and includes a first member to which the door is connected and a second member to which the guide roller is provided.