JP2004239010A

JP2004239010A - Gravity hinge for opening/closing door

Info

Publication number: JP2004239010A
Application number: JP2003031906A
Authority: JP
Inventors: Minoru Hanaue; 穣花上; Mitsuaki Shoji; 光昭庄司
Original assignee: Best Co Ltd
Current assignee: Best Co Ltd
Priority date: 2003-02-10
Filing date: 2003-02-10
Publication date: 2004-08-26

Abstract

PROBLEM TO BE SOLVED: To provide a gravity hinge for opening/closing a door, easily attachable to a support panel and a door panel made of a thin plate, and presenting fine appearance. SOLUTION: A support hinge H2 is composed of: an upper side door mounting means 20 mounted to the lower end face 17 of the door panel D, and a lower side adjusting means 30 for supporting the door panel. The door mounting means fits and sticks an upper cam 25 with a downward inclined cam face into a cylindrical cam case 19. The adjusting means fits a cylindrical adjusting case 33 to an adjusting bolt 32 on a support plate 31 adjustably in the screw height position, and fits a proximal end shaft part 34a of a fixed shaft 34 hangingly provided on the adjusting case, in a rotation regulated state to a lower cam 35 with an upward inclined cam face. The support plate is placed on a floor face F directly below the door panel, while the door mounting means is connected in series in the fittingly inserted state of a tip shaft part 34c of the fixed shaft into the upper cam. COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】本発明は、各種のドア開閉用ヒンジの中でも、一方にガイドヒンジを備えてドアパネルの開閉を案内すると共に、他方にサポートヒンジを備えてドアパネルを支持し、特にドアパネルの自重を利用して自開又は自閉可能にドアパネルをドア用支持パネルに組み付けるドア開閉用グレビティヒンジに関する。
【０００２】
【従来の技術】一般に、ラバトリーブースなどでは、トイレ用のドアパネルを支持パネルに開閉可能に組み付ける場合、この種のグレビティヒンジを用いたものが多く見られる。
【０００３】
従来、グレビティヒンジを用いてドアパネルを支持パネルに取り付ける場合は、たとえば図９に示すように、床面ｆからの高さ位置調整機能を有する支持金具１で水平度を予め調整してから、その支持金具１で支持パネルｐを支えて笠木ｒに固定している。それから、水平な固定状態にある支持パネルｐに対し、ドアパネルｄの上部側を、ガイドヒンジｈ１を用いて回動可能に取り付けると共に、ドアパネルｄの下部側を、サポートヒンジｈ２を用いて回動可能に取り付けて支持する構造になっている。
【０００４】
上方のガイドヒンジｈ１は、支持パネルｐの木口面上側に固定した取付プレート２ａにドアパネルｄ側に固定した枢着具２ｂを、ガイド軸３を支点として回動可能に連結している。下方のサポートヒンジｈ２は、支持パネルｐの木口面下側に固定した支持アーム４ａに、ドアパネルｄ側に固定した枢着具４ｂを、固定軸５を支点として回動可能に連結している。特に、サポートヒンジｈ２は、固定軸５を、図示省略したが、上下一対の円筒状カムに貫挿し、ドアパネルｄの開閉時に、円筒状カムが向き合う側に有する互いの傾斜カム面をドアパネルｄの自重で支持パネルｐを重ね合わせることにより、ドアパネルｄを自開又は自閉可能に支持する構造になっている。
【０００５】
しかし、最近、支持パネルｐやドアパネルｄとして比較的薄板製のものが好んで使用される中で、上述した木口面取付型のグレビティヒンジは、支持パネルｐやドアパネルｄの薄さによっては、幅狭な木口面にガイドヒンジｈ１やサポートヒンジｈ２をねし止めすることが難しく、取り付けに手間がかかって非常に面倒であった。
【０００６】
そこで、従来、薄板製の支持パネルやドアパネルに対しても比較的簡単に取り付けることができる点に着目し、次のような旗蝶番型のグレビティヒンジが使用されている。
【０００７】
旗蝶番型のグレビティヒンジは、図１０に示すように、左右に一対の取付板６ａ・６ｂを備え、これら取付板の対向する側縁に上下一対の軸筒７ａ・７ｂを直列に並設し、これら軸筒内に、固定軸を嵌挿した上下一対の円筒状カム８・９を内設している。そして、片側の取付板６ａを支持パネルｐの板面にねじ止めする一方、他側の取付板６ｂをドアパネルｄの板面にねじ止めし、ドアパネルｄの開閉時は、円筒状カム８・９が向き合う側に有する互いの傾斜カム面８ａ・９ａをドアパネルｄの自重で重ね合わせることにより、ドアパネルｄを自開又は自閉可能に支持する構造になっている。
【０００８】
【発明が解決しようとする課題】ところが、従来の旗蝶番型グレビティヒンジは、取付板６ａ・６ｂを支持パネルｐとドアパネルｄに多数の止めネジを使って面付けするため、それら止めネジや取付板６ａ・６ｂが露出し、特に美観性を要求されるラバトリーブースなどでは、とりわけ見栄えが悪いという課題があった。
【０００９】
そこで、本発明は、上述のような従来の課題を解決し、薄板製の支持パネルやドアパネルに対しても簡単に組み付けることができ、しかも見栄えの良好なドア開閉用グレビティヒンジを提供することにある。
【００１０】
【課題を解決するための手段】請求項１に記載の発明は、上記課題を解決するために、たとえば以下に示す図示実施の形態のとおり、ドアパネルＤの開閉を案内するガイドヒンジＨ１と、上下一対の円筒状カム２５・３５が向き合う側に有する互いの傾斜カム面ｊ・ｋ・ｍ・ｎ、ｖ・ｗ・ｘ・ｙをドアパネルＤの自重で重ね合わせることにより自開又は自閉可能にドアパネルＤを支持するサポートヒンジＨ２と、からなるドア開閉用グレビティヒンジＨにおいて、前記サポートヒンジＨ２は、前記ドアパネルＤの下端面１７に取り付け、傾斜カム面ｊ・ｋ・ｍ・ｎが下向きの前記上部カム２５を筒状カムケース１９内に嵌入して固着してなるドア取付手段２０と、支持プレート３１と、支持プレート３１上に立設し外周に雄ねじ部３２ｂを有するアジャストボルト３２と、その雄ねじ部３２ｂに内周に有する雌ねじ部３３ｂを螺合させてアジャストボルト３２に対し螺合高さ位置を調整可能に嵌着した筒状アジャストケース３３と、傾斜カム面ｖ・ｗ・ｘ・ｙが上向きの前記下部カム３５に回転規制状態で基端軸部３４ａを嵌着させて前記アジャストケース３３上に垂設した固定軸３４とを備え、前記ドアパネルＤの真下で床面Ｆ上に支持プレート３１を載置する一方、固定軸３４の先端軸部３４ｃを前記上部カム２５に嵌挿した状態で前記ドア取付手段２０を載せて直列に連結するアジャスト手段３０とからなることを特徴とする。
【００１１】
請求項２に記載の発明は、たとえば以下に示す図示実施の形態のとおり、請求項１に記載のドア開閉用グレビティヒンジＨにおいて、前記アジャスト手段３０は、前記支持プレート３１に、前記床面Ｆに有する水勾配ｔに応じて底面４０ａを所望傾斜角度の傾斜面で形成した水勾配ライナー４０を、着脱自在に取り付けてなることを特徴とする。
【００１２】
【発明の実施の形態】以下、図面を参照しつつ、本発明の実施の形態について説明する。
【００１３】
図６に、本発明によるドア開閉用グレビティヒンジを用いてドアパネルを支持パネルに対し組み付けたパネル構造体を示す。パネル構造体１０は、たとえばラバトリーブースのトイレ用パネル構造体で、複数の支持パネルＰを面一に配設して上方の笠木Ｒにより一体に連結し、片側の支持パネルＰに対し、本発明によるグレビティヒンジＨでドアパネルＤを組み付ける構造になっている。
【００１４】
さて、パネル構造体１０において、支持パネルＰおよびドアパネルＤは、共に厚さ２０ｍｍ程度の薄板製で、そのうち支持パネルＰは、床面Ｆからの高さ位置調整機能を有する周知の支持金具１１で水平度を予め調整してから、その支持金具１１で支えて笠木Ｒに取り付けている。そして、水平な固定状態にある片側の支持パネルＰに対しドアパネルＤを、グレビティヒンジＨを使って回動可能に組み付ける。グレビティヒンジＨは、ドアパネルＤの開閉を案内する上方のガイドヒンジＨ１と、ドアパネルＤを開閉可能に支持する下方のサポートヒンジＨ２とからなる。
【００１５】
ガイドヒンジＨ１は、図５に示すように、笠木Ｒに取り付ける金属製の取付プレート１３と、ドアパネルＤの上端面１２に取り付ける樹脂製の取付プレート１４とを備える。取付プレート１３・１４は、共に支持パネルＰおよびドアパネルＤの厚さに合わせた幅寸法の細長に形成するが、笠木側の取付プレート１３は、その先端寄りにガイド軸１５を、その基端をかしめて固定的に立設している。ドアパネル側の取付プレート１４は、ガイド軸１５を軸線周りに回動可能に貫挿する筒穴部１４ａを設けてなる。
【００１６】
一方、サポートヒンジＨ２は、図１〜図３に示すように、ドアパネルＤの下端面１７に固着する上側のドア取付手段２０と、ドア取付手段２０と連結してドアパネルＤを支持する下側のアジャスト手段３０とで構成してなる。
【００１７】
ドア取付手段２０は、図２に示すように、取付プレート１８と、筒状のカムケース１９と、上部カム２５とを備える。取付プレート１８は、ドアパネルＤの厚さに合わせた幅サイズで細長な金属板で形成するが、一端側に止めねじ挿通用の取付穴２２を設け、他端寄りに一部を拡径にして円形のカム取付板部１８ａを形成してなる。カム取付板部１８ａには、中心に嵌め込み穴２３を設け、その嵌め込み穴２３を間に挟んで両側に一対の係合小穴２４を設ける一方、係合小穴２４間と直交する両側に円弧状の差し込み穴２６を設けている。カムケース１９は、上部カム２５の外形状に合わせて両端を開放した金属製の円筒材からなり、図中上端縁の対称位置に、差し込み穴２６と対応する円弧状の係合凸部１９ａを突設している。
【００１８】
上部カム２５は、樹脂材料により一体成形し、図２（ｂ）に示すように、中心に嵌合丸穴２７を形成した内筒部２５ａを設けると共に、内筒部２５ａの外周に外筒部２５ｂを設けてなる。内筒部２５ａには、下端縁〔（図２（ｂ）では上側〕に傾斜カム面ｊ・ｋを半周ずつ左右に分割して設け、外筒部２５ｂにも、下端縁に傾斜カム面ｍ・ｎを半周ずつ左右に分割して設けている。この上部カム２５では、内筒部２５ａの傾斜カム面ｊ・ｋと、外筒部２５ｂの傾斜カム面ｍ・ｎとの設置位相を１８０度ずらして逆向きに形成している。さらに、上部カム２５は、図２（ａ）において上端面中央に、取付プレート１８の嵌め込み穴２３の開口形状に合わせて凸状部２５ｃを設け、凸状部２５ｃの両側に一対の小突起２５ｄを突設している。
【００１９】
そこで、ドア取付手段２０は、取付プレート１８に対しカムケース１９を、差し込み穴２６に係合凸部１９ａを差し込んで、かしめることにより固着する。そして、傾斜カム面ｊ・ｋ・ｍ・ｎを下向きにして上部カム２５をカムケース１９内に嵌入し、凸状部２５ｃを嵌め込み穴２３に嵌め込んで、小突起２５ｄを係合小穴２４に圧入することにより、上部カム２５を取付プレート１８に固着して組み立ててなる。
【００２０】
他方、アジャスト手段３０は、金属製の支持プレート３１と、取付高さ位置調整用の金属製アジャストボルト３２およびアジャストケース３３と、アジャストケース３３上に立設する金属製の固定軸３４と、固定軸３４を嵌挿する樹脂製の下部カム３５とを備える。
【００２１】
支持プレート３１は、円盤状で、中心に取付穴３１ａを設ける一方、図１でも示すように下端周縁を屈曲させて、そこに水勾配ライナー４０を取り付ける環状の係合リブ３１ｂを設けてなる。
【００２２】
水勾配ライナー４０は、樹脂材料により支持プレート３１の外形状に合わせてリング状に成形し、図４に示すように、底面４０ａを、床面Ｆに有する水勾配ｔの傾斜角度に応じて適宜傾斜させた傾斜面で形成し、底面４０ａに所望角度の勾配を設けてなる。しかも、外周には、図において漸次下向きに傾斜する片側に、この下向き傾斜方向を示す目印として突片４０ｂが設けられている。一方、内周縁には、それに沿って環状の係合凸部４０ｃを設け、その係合凸部４０ｃを、図１に示すように、係合リブ３１ｂの内側に弾性的に嵌め付けて支持プレート３１に対し着脱自在に取り付けられるようになっている。そこで、本発明のグレビティヒンジＨでは、図４中矢印Ａで示す排水方向へ傾斜する水勾配ｔが床面Ｆに設けられている場合、支持プレート３１に水勾配ライナー４０を装着してサポートヒンジＨ１を使用する。
【００２３】
アジャストボルト３２は、図２中下端面の中心に取付軸部３２ａを突設し、上部外周に拡径な雄ねじ部３２ｂを設けてなる。他方、アジャストケース３３は、図中下端を開放した円筒状をなし、上端面の中心に軸取付穴３３ａを設け、内周面に、図１に示すとおりアジャストボルト３２の雄ねじ部３２ｂが螺合可能な雌ねじ部３３ｂを形成してなる。さらに外周部には、図２に示すように小穴３３ｃを穿設し、回動操作用の六角レンチを嵌め込むための六角穴付き止めナット３９を小穴３３ｃに圧入する。固定軸３４は、基端軸部３４ａ寄りの外周に、断面八角形の角柱状をなすカム位置決め部３４ｂを設け、先端軸部３４ｃに丸みを付けて形成してなる。
【００２４】
下部カム３５は、略円筒状に一体成形してなり、中心に、固定軸３４のカム位置決め部３４ｂの外形状に合わせて八角形の嵌合穴４１を有する内筒部３５ａを設け、内筒部３５ａの外周に外筒部３５ｂを設けてなる。内筒部３５ａには、上端縁に傾斜カム面ｖ・ｗを半周ずつ左右に分割して設け、外筒部３５ｂにも、上端縁に傾斜カム面ｘ・ｙを半周ずつ左右に分割して設けている。内筒部３５ａの傾斜カム面ｖ・ｗと、外筒部３５ｂの傾斜カム面ｘ・ｙとは、その設置位相を１８０度ずらした逆向きに形成している。
【００２５】
そこで、アジャスト手段３０は、支持プレート３１の取付穴３１ａに取付軸部３２ａを圧入し、支持プレート３１上にアジャストボルト３２を固定的に立設する。一方、アジャストケース３３には、その軸取付穴３３ａに基端軸部３４ａを圧入し、アジャストケース３３上に固定軸３４を固定的に垂設する。そして、アジャストボルト３２の雄ねじ部３２ｂに雌ねじ部３３ｂを螺合させながら、アジャストボルト３２にアジャストケース３３を嵌着する。次いで、アジャスト手段３０は、傾斜カム面ｖ・ｗ・ｘ・ｙを上向きにした下部カム３５に固定軸３４を嵌挿し、同じ八角の嵌合穴４１にカム位置決め部３５ａを嵌着することにより、下部カム３５を軸心周りの回動規制状態でセットして組み立ててなる。
【００２６】
さて、支持パネルＰに対しドアパネルＤを組み付けるために、上述した構成のグレビティヒンジＨを使用するとき、ガイドヒンジＨ１は、図５に示すように、取付プレート１３を、ガイド軸１５の先端を下向きにして笠木Ｒの底板部１６上に止めネジ２７で固着する。一方、取付プレート１４は、筒穴部１４ａを、予め筒穴部１４ａに合わせてドアパネルＤの上端面１２に穿設したヒンジ取付穴２８に嵌め込んで、止めネジ２９で上端面１２上に固着する。なお、ヒンジ取付穴２８には、その底側にガイド軸１５に合わせて一段細い穴径の軸穴部２８ａを設けている。
【００２７】
他方、サポートヒンジＨ２は、図１に示すように、一方のドア取付手段２０を、ドアパネルＤの下端面１７における支持パネルＰ寄りに取り付ける。その場合、取付プレート１８を、カムケース１９を下向きにして上部カム２５の嵌合丸穴２７を、予め固定軸３４の軸径に合わせてドアパネルＤの下端面１７に穿設した軸位置決め穴３８に対し一致させて、ドアパネルＤの下端面１７に止めネジ３７で固着する。
【００２８】
そこで、ドアパネルＤを持ち上げて、図５に示すように、ガイドヒンジＨ１のガイド軸１５を、筒穴部１４ａに通してヒンジ取付穴２８に回転自在に嵌入する一方、図１に示すように、サポートヒンジＨ２のドア取付手段２０を、その真下の床面Ｆ上に設置するアジャスト手段３０と連結する。
【００２９】
この場合、アジャスト手段３０は、水勾配ライナー４０の下向き傾斜方向を示す突片４０ｂの向きを床面Ｆの水勾配の向きに合わせ、支持プレート３１を床面Ｆ上に載置して設置する。そして、固定軸３４の先端軸部３４ｃを、ドア取付手段２０で固持した上部カム２５の嵌合丸穴２７を貫通してドアパネルＤの軸位置決め穴３８に嵌合し、上部カム２５の傾斜カム面ｊ・ｋ・ｍ・ｎを、下部カム３５の傾斜カム面ｖ・ｗ・ｘ・ｙに突き合せて、図３に示すように、ドア取付手段２０をアジャスト手段３０上に載せて直列に連結する。このとき、アジャスト手段の止めナット３９に不図示の六角レンチを嵌め込んで、アジャストケース３３をアジャスタボルト３２に対し回動して螺合高さ位置を調節する。そして、ドアパネルＤが支持パネルＰと整合する所定高さ位置で、且つ傾きのない水平度を保持するように調整する。
【００３０】
なお、サポートヒンジＨ２は、必要に応じて、アジャスタボルト３２に対しアジャストケース３３の螺合高さ位置を適宜に調節することにより、図７に示す最大の螺合高さ位置まで、ドアパネルＤの取付高さ位置を調整して水平度を保持させることができる。
【００３１】
こうしてグレビティヒンジＨは、支持パネルＰに対し、ドアパネルＤをガイドヒンジＨ１によりガイド軸１５を支点として回動可能に組み付けると共に、ドアパネルＤ全体を、サポートヒンジＨ２により固定軸３４を支点として回動可能に水平位置にて支持する。
【００３２】
そこで、このグレビティヒンジＨを用いて組み付けたドアパネルＤは、それを押して、たとえば開方向に回動させると、サポートヒンジＨ２における上部カム３５が、回転規制状態の下部カム３５に対し互いの傾斜カム面を摺接しながら、図８に示すようにドアパネルＤと共に上昇し、所定の開き角度位置まで開かれる。一方、このドアパネルＤに対する開放押圧力を解くと、ドアパネルＤの自重により、上部カム２５が下部カム３５との傾斜カム面に沿って摺接しながら下降し、図１に示すように互いの傾斜カム面が重なり合うことにより、ドアパネルＤが自動的に回動して閉じられる。
【００３３】
【発明の効果】上述の如く構成した本発明によれば、次のような効果が得られる。
【００３４】
請求項１に記載の発明のドア開閉用グレビティヒンジによれば、ドアパネルを自重を利用して自開又は自閉するカム機構を内蔵したサポートヒンジを、ドアパネルの下端面に固着するドア取付手段と、ドアパネルの高さ位置を調整して水平度を保持させる水準調整機構を備えたアジャスト手段を連結してドアパネル下端と床面との間に設置可能な構成であることから、支持パネルやドアパネルが例え木口面の幅狭な薄板製であることに関係なく、手間なく簡単に取り付けることができ、しかも、そのヒンジ取付状態において、従来の旗蝶番型グレビティヒンジを面付けする場合のように止めネジや取付板などが外部に露出する弊害がなく、見栄えも良好であり、特に美観性を要求されるラバトリーブースなどでも好んで使用することができる。
【００３５】
さらに、サポートヒンジがドアパネル下端と床面との間でドアパネルの取付高さ位置を調整して水平度を保持させる機能をもったアジャスト手段を備えた構成であることから、ドアパネルを所望高さの水平位置に任意に調整して支持することができると共に、しかも、支持パネルに関係なく、ドアパネルを単独でも所望高さの水平位置に調整して組み付けることができる。したがって、ドアパネルの組み付け後に、衝撃などを受けてドアパネルが傾くことがあっても、アジャスト手段により調整してドアパネルを水平位置に簡単に修復することができる。
【００３６】
請求項２に記載の発明のドア開閉用グレビティヒンジによれば、アジャスト手段の支持プレートに、床面に有する水勾配に応じて底面を所望傾斜角度の傾斜面で形成した水勾配ライナーを、着脱自在に取り付ける構成にすることにより、ラバトリーブースなどで排水方向へ傾斜する水勾配が床面に設けられている場合であっても、床面の傾斜に対応してドアパネルを常に水平に組み付けることができる。
【図面の簡単な説明】
【図１】本発明によるドア開閉用グレビティヒンジに備えるサポートヒンジの内部構造を示す縦断面図である。
【図２】サポートヒンジの分解斜視図である。
【図３】サポートヒンジを取付状態において示す斜視図である。
【図４】水勾配ライナーを示す縦断面図である。
【図５】ガイドヒンジを取付状態において示す縦断面図である。
【図６】本発明のドア開閉用グレビティヒンジを用いてドアパネルを支持パネルに組み付けたパネル構造体を示す正面図である。
【図７】サポートヒンジを、アジャスタボルトに対しアジャストケースが最大螺合高さ位置にある状態において示す縦断面図である。
【図８】サポートヒンジを、ドア開時に下部カムに対し上部カムが上昇した状態において示す縦断面図である。
【図９】従来の木口面取付型グレビティヒンジを用いてドアパネルを支持パネルに組み付けたパネル構造体を示す正面図である。
【図１０】従来の旗蝶番型グレビティヒンジを取付状態において示す正面図である。
【符号の説明】
Ｄドアパネル
Ｆ床面
Ｈドア開閉用グレビティヒンジ
Ｈ１ガイドヒンジ
Ｈ２サポートヒンジ
Ｐ支持パネル
ｊ・ｋ・ｍ・ｎ上部カムの傾斜カム面
ｖ・ｗ・ｘ・ｙ下部カムの傾斜カム面
ｔ水勾配
１９カムケース
２０ドア取付手段
２５上部カム
３０アジャスト手段
３１支持プレート
３２アジャストボルト
３２ｂ雄ねじ部
３３アジャストケース
３３ｂ雌ねじ部
３４固定軸
３４ａ基端軸部
３４ｃ先端軸部
３５下部カム
４０水勾配ライナー
４０ａ水勾配ライナーの底面[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing hinge, of which one side has a guide hinge to guide the opening and closing of a door panel, and the other side has a support hinge to support the door panel. The present invention relates to a door opening / closing gravity hinge for assembling a door panel to a door support panel so as to be able to self-open or self-close using its own weight.
[0002]
2. Description of the Related Art Generally, in a lavatory booth or the like, when a door panel for a toilet is attached to a support panel so as to be openable and closable, a type using a gravity hinge of this type is often used.
[0003]
Conventionally, when a door panel is attached to a support panel using a gravity hinge, for example, as shown in FIG. 9, the horizontality is previously adjusted by a support fitting 1 having a height position adjusting function from the floor surface f, The support panel p is supported by the support fitting 1 and is fixed to the coping r. Then, the upper side of the door panel d is rotatably attached to the horizontally fixed support panel p using the guide hinge h1, and the lower side of the door panel d is rotatable using the support hinge h2. It is designed to be attached to and supported.
[0004]
The upper guide hinge h1 connects a pivotal attachment 2b fixed to the door panel d side to a mounting plate 2a fixed to the upper side of the cut end of the support panel p so as to be rotatable about the guide shaft 3. The lower support hinge h2 connects the pivotal attachment 4b fixed to the door panel d side to the support arm 4a fixed to the lower side of the cut edge of the support panel p so as to be rotatable about the fixed shaft 5 as a fulcrum. In particular, the support hinge h2, though not shown, has the fixed shaft 5 inserted into a pair of upper and lower cylindrical cams, and when the door panel d is opened and closed, the two inclined cam surfaces on the side facing the cylindrical cams face each other. By overlapping the support panel p with its own weight, the door panel d is supported so as to be able to open or close by itself.
[0005]
However, recently, a relatively thin plate is preferably used as the support panel p or the door panel d, and the above-described cut edge mounting type gravity hinge is, depending on the thinness of the support panel p or the door panel d, It was difficult to fix the guide hinge h1 and the support hinge h2 to the narrow wooden surface, and the installation was troublesome and troublesome.
[0006]
Therefore, focusing on the fact that it can be relatively easily attached to a thin support panel or door panel, the following flag hinge type gravity hinge has been used.
[0007]
As shown in FIG. 10, the flag hinge type hinge has a pair of mounting plates 6a and 6b on the left and right sides, and a pair of upper and lower shaft cylinders 7a and 7b are arranged in series on opposite side edges of these mounting plates. A pair of upper and lower cylindrical cams 8 and 9 having fixed shafts inserted therein are provided inside these shaft cylinders. Then, the one-side mounting plate 6a is screwed to the plate surface of the support panel p, and the other-side mounting plate 6b is screwed to the plate surface of the door panel d. When the door panel d is opened and closed, the cylindrical cams 8.9 are formed. The door panel d is self-opening or self-closing by supporting the inclined cam surfaces 8a and 9a on the sides facing each other by the weight of the door panel d.
[0008]
However, in the conventional flag hinge type gravity hinge, since the mounting plates 6a and 6b are mounted on the support panel p and the door panel d using a large number of set screws, the set screws and The mounting plates 6a and 6b are exposed, and there is a problem that the appearance is particularly poor in a lavatory booth or the like where aesthetics are required.
[0009]
Therefore, the present invention is to solve the above-mentioned conventional problems, and to provide a door opening / closing graffiti hinge which can be easily assembled to a thin support panel or a door panel and has a good appearance. It is in.
[0010]
According to the first aspect of the present invention, a guide hinge H1 for guiding the opening and closing of a door panel D is provided to solve the above-mentioned problem. Self-opening or self-closing is possible by superimposing the inclined cam surfaces j, km, n, v, w, xy, and y of the pair of cylindrical cams 25, 35 on the side facing each other by the weight of the door panel D. In a door opening / closing gravity hinge H comprising a support hinge H2 for supporting the door panel D, the support hinge H2 is attached to the lower end face 17 of the door panel D, and the inclined cam surface j, kmm, n faces downward. The upper cam 25 is fitted into the cylindrical cam case 19 and fixedly attached thereto. The door mounting means 20, a support plate 31, and a male screw portion 32b provided on the support plate 31 and standing upright on the support plate 31 are provided. Adjusting bolt 32, a cylindrical adjusting case 33 in which a male screw portion 32b provided on the inner periphery of the male screw portion 32b is screwed into the adjusting bolt 32 so as to adjust the screw height to the adjusting bolt 32, and an inclined cam surface. a fixed shaft 34 which is fitted on the lower cam 35 having an upwardly directed v, w, xy and rotation restriction state and a base shaft portion 34a is mounted on the adjusting case 33 in a rotation-restricted state, and directly below the door panel D; And the adjusting means 30 for mounting the door mounting means 20 and connecting the door mounting means 20 in series while the tip shaft 34c of the fixed shaft 34 is inserted into the upper cam 25 while the support plate 31 is mounted on the floor F. It is characterized by comprising.
[0011]
According to a second aspect of the present invention, in the door opening / closing gravity hinge H according to the first embodiment, for example, the adjusting means 30 includes the support plate 31 and the floor surface. A water gradient liner 40 having a bottom surface 40a formed by an inclined surface having a desired inclination angle according to a water gradient t included in F is detachably attached.
[0012]
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
FIG. 6 shows a panel structure in which a door panel is assembled to a support panel using a door opening and closing gravity hinge according to the present invention. The panel structure 10 is, for example, a toilet panel structure of a lavatory booth. A plurality of support panels P are arranged flush with each other and connected integrally by an upper skirt R, and the present invention is applied to one side of the support panel P according to the present invention. The door panel D is assembled with the gravity hinge H of the above.
[0014]
Now, in the panel structure 10, the support panel P and the door panel D are both made of a thin plate having a thickness of about 20 mm, and the support panel P is a well-known support fitting 11 having a height position adjusting function from the floor surface F. After adjusting the degree of horizontality in advance, it is supported by the supporting bracket 11 and attached to the skirt R. Then, the door panel D is attached rotatably to the one support panel P in the horizontal fixed state by using the gravity hinge H. The gravity hinge H includes an upper guide hinge H1 that guides the opening and closing of the door panel D, and a lower support hinge H2 that supports the door panel D so that the door panel D can be opened and closed.
[0015]
As shown in FIG. 5, the guide hinge H 1 includes a metal mounting plate 13 that is mounted on the Kasagi R, and a resin mounting plate 14 that is mounted on the upper end surface 12 of the door panel D. Each of the mounting plates 13 and 14 is formed to have a narrow width in accordance with the thickness of the support panel P and the door panel D, and the mounting plate 13 on the skirting side has a guide shaft 15 near its distal end and a proximal end thereof. It is fixed and standing upright. The mounting plate 14 on the door panel side is provided with a cylindrical hole 14a through which the guide shaft 15 is rotatably inserted around the axis.
[0016]
On the other hand, as shown in FIGS. 1 to 3, the support hinge H 2 has an upper door mounting means 20 fixed to the lower end face 17 of the door panel D, and a lower side supporting the door panel D in connection with the door mounting means 20. The adjusting means 30 is used.
[0017]
As shown in FIG. 2, the door attaching means 20 includes an attaching plate 18, a cylindrical cam case 19, and an upper cam 25. The mounting plate 18 is formed of a thin and long metal plate having a width corresponding to the thickness of the door panel D, and is provided with a mounting hole 22 for inserting a set screw on one end side, and a part of the diameter is enlarged near the other end. A circular cam mounting plate 18a is formed. The cam mounting plate portion 18a is provided with a fitting hole 23 at the center and a pair of engaging small holes 24 on both sides with the fitting hole 23 interposed therebetween. An insertion hole 26 is provided. The cam case 19 is made of a metal cylindrical material whose both ends are opened according to the outer shape of the upper cam 25, and protrudes an arc-shaped engaging projection 19a corresponding to the insertion hole 26 at a symmetrical position of the upper end edge in the figure. Has been established.
[0018]
The upper cam 25 is integrally formed of a resin material, and as shown in FIG. 2B, is provided with an inner cylindrical portion 25a having a fitting round hole 27 formed at the center, and an outer cylindrical portion is formed on the outer periphery of the inner cylindrical portion 25a. 25b. The inner cylinder portion 25a is provided with inclined cam surfaces jk on the lower edge (the upper side in FIG. 2 (b)) by dividing the left and right sides by half a circle. The outer cylinder portion 25b also has an inclined cam surface m on the lower edge. In the upper cam 25, the installation phase of the inclined cam surfaces jk of the inner cylindrical portion 25a and the inclined cam surfaces mn of the outer cylindrical portion 25b is 180. Further, the upper cam 25 is provided with a convex portion 25c at the center of the upper end face in FIG. 2 (a) in accordance with the opening shape of the fitting hole 23 of the mounting plate 18. A pair of small projections 25d protrude from both sides of the shape portion 25c.
[0019]
Therefore, the door attaching means 20 secures the cam case 19 to the attaching plate 18 by inserting the engaging projection 19a into the insertion hole 26 and caulking. Then, the upper cam 25 is fitted into the cam case 19 with the inclined cam surfaces j, km, and n facing downward, the convex portion 25c is fitted into the fitting hole 23, and the small projection 25d is pressed into the engaging small hole 24. By doing so, the upper cam 25 is fixed to the mounting plate 18 and assembled.
[0020]
On the other hand, the adjusting means 30 includes a metal supporting plate 31, a metal adjusting bolt 32 and an adjusting case 33 for adjusting a mounting height position, a metal fixed shaft 34 erected on the adjusting case 33, and a fixed member. A lower cam 35 made of resin into which the shaft 34 is inserted.
[0021]
The support plate 31 has a disk shape and is provided with a mounting hole 31a at the center, and is provided with an annular engaging rib 31b for bending the lower end periphery as shown in FIG.
[0022]
The water gradient liner 40 is formed of a resin material into a ring shape according to the outer shape of the support plate 31, and the bottom surface 40a is appropriately formed according to the inclination angle of the water gradient t on the floor surface F as shown in FIG. It is formed by an inclined surface, and the bottom surface 40a is provided with a gradient at a desired angle. In addition, a protruding piece 40b is provided on one side of the outer periphery that is gradually inclined downward in the figure as a mark indicating the downward inclination direction. On the other hand, an annular engaging projection 40c is provided along the inner peripheral edge, and the engaging projection 40c is elastically fitted inside the engaging rib 31b as shown in FIG. 31 can be detachably attached. Therefore, in the gravity hinge H of the present invention, when a water gradient t inclined in the drainage direction indicated by an arrow A in FIG. The hinge H1 is used.
[0023]
The adjusting bolt 32 has a mounting shaft portion 32a protruding at the center of the lower end surface in FIG. 2 and an enlarged external thread portion 32b provided on the outer periphery of the upper portion. On the other hand, the adjust case 33 has a cylindrical shape with the lower end opened in the figure, a shaft mounting hole 33a is provided at the center of the upper end surface, and the male screw portion 32b of the adjust bolt 32 is screwed into the inner peripheral surface as shown in FIG. A possible female screw portion 33b is formed. Further, a small hole 33c is formed in the outer peripheral portion as shown in FIG. 2, and a hexagon socket lock nut 39 for fitting a hexagon wrench for rotating operation is pressed into the small hole 33c. The fixed shaft 34 is formed by providing a cam positioning portion 34b in the form of a prism having an octagonal cross section on the outer periphery near the base shaft portion 34a, and rounding the front shaft portion 34c.
[0024]
The lower cam 35 is integrally formed in a substantially cylindrical shape, and is provided with an inner cylindrical portion 35a having an octagonal fitting hole 41 in the center according to the outer shape of the cam positioning portion 34b of the fixed shaft 34. An outer cylindrical portion 35b is provided on the outer periphery of the portion 35a. The inner cylinder portion 35a is provided with the inclined cam surfaces v and w divided by the left and right at the upper end edge, and the outer cylinder portion 35b is also formed by dividing the inclined cam surfaces x and y into the left and right half by the upper edge. Provided. The inclined cam surfaces v and w of the inner cylindrical portion 35a and the inclined cam surfaces x and y of the outer cylindrical portion 35b are formed in opposite directions with their installation phases shifted by 180 degrees.
[0025]
Therefore, the adjusting means 30 press-fits the mounting shaft portion 32 a into the mounting hole 31 a of the support plate 31, and fixedly raises the adjustment bolt 32 on the support plate 31. On the other hand, in the adjust case 33, the base shaft portion 34a is press-fitted into the shaft mounting hole 33a, and the fixed shaft 34 is fixedly vertically suspended on the adjust case 33. Then, the adjusting case 33 is fitted to the adjusting bolt 32 while the female screw 33b is screwed into the male screw 32b of the adjusting bolt 32. Next, the adjusting means 30 inserts the fixed shaft 34 into the lower cam 35 with the inclined cam surface v · w · x · y facing upward, and fits the cam positioning portion 35a into the same octagonal fitting hole 41. The lower cam 35 is set and assembled in a state where the rotation is restricted around the axis.
[0026]
Now, when the gravity hinge H having the above-described configuration is used to attach the door panel D to the support panel P, the guide hinge H1 connects the mounting plate 13 to the tip of the guide shaft 15 as shown in FIG. It is fixed downward on the bottom plate portion 16 of the Kasagi R with a set screw 27. On the other hand, the mounting plate 14 is fitted in the hinge mounting hole 28 previously drilled in the upper end surface 12 of the door panel D so that the cylindrical hole portion 14a is aligned with the cylindrical hole portion 14a, and is fixed on the upper end surface 12 with a set screw 29. I do. The hinge mounting hole 28 is provided with a shaft hole 28a having a one-step narrower hole diameter in accordance with the guide shaft 15 on the bottom side.
[0027]
On the other hand, the support hinge H2 attaches one door attaching means 20 to the lower end surface 17 of the door panel D near the support panel P as shown in FIG. In this case, the mounting plate 18 is set so that the cam case 19 faces downward, and the fitting round hole 27 of the upper cam 25 is inserted into the shaft positioning hole 38 previously drilled in the lower end face 17 of the door panel D according to the diameter of the fixed shaft 34. On the other hand, they are fixed to the lower end face 17 of the door panel D with set screws 37.
[0028]
Then, the door panel D is lifted, and as shown in FIG. 5, the guide shaft 15 of the guide hinge H1 is rotatably fitted into the hinge mounting hole 28 through the cylindrical hole portion 14a, as shown in FIG. The door attaching means 20 of the support hinge H2 is connected to the adjusting means 30 installed on the floor F directly below the hinge means.
[0029]
In this case, the adjusting means 30 places the support plate 31 on the floor F by setting the direction of the protruding piece 40b indicating the downward inclination direction of the water gradient liner 40 to the direction of the water gradient on the floor F. . Then, the tip shaft portion 34c of the fixed shaft 34 penetrates through the fitting round hole 27 of the upper cam 25 fixed by the door mounting means 20, and fits into the shaft positioning hole 38 of the door panel D. The surfaces j, km, and n are aligned with the inclined cam surfaces v, w, xy of the lower cam 35, and the door mounting means 20 is placed on the adjusting means 30 in series as shown in FIG. connect. At this time, a hexagon wrench (not shown) is fitted into the lock nut 39 of the adjusting means, and the adjusting case 33 is rotated with respect to the adjuster bolt 32 to adjust the screw height position. Then, the door panel D is adjusted so as to maintain a predetermined level at which the door panel D is aligned with the support panel P and to maintain a horizontal level without inclination.
[0030]
The support hinge H2 can adjust the screw height position of the adjust case 33 with respect to the adjuster bolt 32 as necessary, so that the door panel D is moved to the maximum screw height position shown in FIG. By adjusting the mounting height position, the levelness can be maintained.
[0031]
Thus, the gravity hinge H pivotally mounts the door panel D on the support panel P with the guide hinge H1 around the guide shaft 15 as a fulcrum, and rotates the entire door panel D with the support hinge H2 around the fixed shaft 34 as a fulcrum. If possible, support it in a horizontal position.
[0032]
Therefore, when the door panel D assembled by using the gravity hinge H is pushed and rotated, for example, in the opening direction, the upper cam 35 in the support hinge H2 is inclined with respect to the lower cam 35 in the rotation restricted state. While sliding on the cam surface, it rises together with the door panel D as shown in FIG. 8, and is opened to a predetermined opening angle position. On the other hand, when the opening pressing force on the door panel D is released, the upper cam 25 descends while sliding along the inclined cam surface with the lower cam 35 due to the weight of the door panel D, and as shown in FIG. When the surfaces overlap, the door panel D is automatically rotated and closed.
[0033]
According to the present invention configured as described above, the following effects can be obtained.
[0034]
According to the door opening / closing gravity hinge according to the first aspect of the present invention, a door mounting means for fixing a support hinge having a built-in cam mechanism for self-opening or self-closing the door panel using its own weight to the lower end surface of the door panel. And adjusting means having a level adjusting mechanism for adjusting the height position of the door panel to maintain the levelness by connecting the adjusting means with the lower end of the door panel and the floor surface. Regardless of whether it is made of a thin plate with a narrow opening, it can be easily and easily attached without any trouble, and in the hinge mounting state, as in the case of imposing a conventional flag hinge type graffiti hinge There is no harm that the setscrew or mounting plate is exposed to the outside, and the appearance is good, and it can be used favorably even in a lavatory booth or the like where aesthetics are required.
[0035]
Further, since the support hinge is provided with an adjusting means having a function of adjusting the mounting height position of the door panel between the lower end of the door panel and the floor surface to maintain the levelness, the door panel can be adjusted to a desired height. The door panel can be arbitrarily adjusted and supported at a horizontal position, and the door panel alone can be adjusted to a desired horizontal position and assembled independently of the support panel. Therefore, even if the door panel is tilted due to an impact or the like after the door panel is assembled, the door panel can be easily restored to the horizontal position by adjusting the adjustment means.
[0036]
According to the door opening / closing gravity hinge of the invention according to claim 2, the support plate of the adjusting means is provided with a water gradient liner having a bottom surface formed with a slope having a desired slope angle in accordance with a water gradient having a floor surface. Even if the floor has a water gradient that slopes in the direction of drainage in a lavatory booth, etc., the door panel can always be installed horizontally in accordance with the inclination of the floor surface by adopting a configuration that can be detachably attached. Can be.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an internal structure of a support hinge provided in a door opening and closing gravity hinge according to the present invention.
FIG. 2 is an exploded perspective view of a support hinge.
FIG. 3 is a perspective view showing a support hinge in an attached state.
FIG. 4 is a longitudinal sectional view showing a water gradient liner.
FIG. 5 is a longitudinal sectional view showing a guide hinge in an attached state.
FIG. 6 is a front view showing a panel structure in which a door panel is assembled to a support panel using the door opening and closing gravity hinge of the present invention.
FIG. 7 is a vertical cross-sectional view showing the support hinge in a state where an adjust case is at a maximum screw height position with respect to an adjuster bolt.
FIG. 8 is a longitudinal sectional view showing the support hinge in a state where the upper cam is raised with respect to the lower cam when the door is opened.
FIG. 9 is a front view showing a panel structure in which a door panel is assembled to a support panel using a conventional woodcut-surface-attached gravity hinge.
FIG. 10 is a front view showing a conventional flag hinge type gravity hinge in a mounted state.
[Explanation of symbols]
D Door panel F Floor surface H Gravity hinge for door opening / closing H1 Guide hinge H2 Support hinge P Support panel j, km, n Inclined cam surface v, w, xy of upper cam Inclined cam surface t of lower cam Water gradient 19 Cam case 20 Door mounting means 25 Upper cam 30 Adjusting means 31 Support plate 32 Adjust bolt 32b Male screw 33 Adjust case 33b Female screw 34 Fixed shaft 34a Base shaft 34c Tip shaft 35 Lower cam 40 Water gradient liner 40a Water gradient liner Bottom of

Claims

A guide hinge that guides the opening and closing of the door panel, and a support hinge that supports the door panel so that the door panel can be self-opened or self-closed by superimposing the respective inclined cam surfaces on the side where the pair of upper and lower cylindrical cams face each other by the weight of the door panel, In the door opening and closing gravity hinge consisting of
The support hinge is
Door mounting means attached to the lower end surface of the door panel, wherein the upper cam whose inclined cam surface is downwardly fitted and fixed in a cylindrical cam case,
A support plate, an adjust bolt having an external thread portion on the outer periphery and standing on the support plate, and a female screw portion on the inner periphery of the male screw portion are screwed into the adjust bolt so that a screw height position can be adjusted to the adjust bolt. A cylindrical adjust case attached thereto, and a fixed shaft vertically attached to the adjust case by fitting a base shaft portion to the lower cam with the inclined cam surface facing upward in a rotation-restricted state, and directly below the door panel. Adjusting means for placing the support plate on the floor surface and connecting the door mounting means in series with the distal end shaft portion of the fixed shaft being fitted in the upper cam, and connecting the door mounting means in series,
A door hinge for opening and closing, comprising: a hinge;

The adjusting means is characterized in that a water gradient liner having a bottom surface formed by a slope having a desired slope angle in accordance with a water gradient on the floor surface is detachably attached to the support plate. The gravity hinge for opening and closing a door according to claim 1.