JP2004332982A

JP2004332982A - Gas cooking stove

Info

Publication number: JP2004332982A
Application number: JP2003127492A
Authority: JP
Inventors: Hideki Tani; 秀輝谷; Hiroshi Ohori; 弘大堀; Masaya Yamane; 賢哉山根
Original assignee: Rinnai Corp
Current assignee: Rinnai Corp
Priority date: 2003-05-02
Filing date: 2003-05-02
Publication date: 2004-11-25
Anticipated expiration: 2023-05-02
Also published as: KR20040094282A; KR100542700B1; TW200424484A; CN1550721A; CN100376841C; JP4073820B2; TWI231856B

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas cooking stove wherein a glass top panel is prevented from being damaged by a protection ring, and an inserted packing is also prevented from being worn away or falling off, in cleaning and the like. <P>SOLUTION: The top panel 1 is formed by surrounding an outer peripheral edge part of a glass plate 2 by a protection member 7. The protection ring 20 mounted on an opening peripheral edge part of a burner opening 2a of the glass plate 2 comprises cylindrical parts 21b, 22b inserted into the burner opening, and upper and lower rings 21, 22 having upper and lower flange parts 21a, 22a respectively faced to an opening peripheral edge upper face and an opening peripheral edge lower face of the glass plate 2, and a projection 22c mounted on the cylindrical part 22b is engaged with an engagement hole 21c formed on the cylindrical part 21b to connect rings 21, 22. The lower flange part 22a is provided with an extended part 22e kept into contact with the protection member 3 to prevent the rotation of the protection ring 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、コンロ本体の上面をガラス板の外周縁部を保護体で囲繞したガラス天板で覆うガスコンロに関し、詳しくはガラス天板のバーナ開口の開口周縁に取付ける保護リングの改良に関する。
【０００２】
【従来の技術】
ガラス板の外周縁部を枠等の保護体で保護したガラス天板によりコンロ本体の上面を覆うガラストップコンロが知られ、該天板のガラス板に開設したバーナ開口には該開口周縁の保護のために保護リングが取付けられている。
【０００３】
従来、この保護リングは、バーナ開口内に挿入される筒部と、ガラス板の開口周縁上面と開口周縁下面に対向する上下のフランジ部とを備え、上下のフランジ部が該筒部を介して連結されるようにしたものが知られている（例えば、特許文献１の図２参照）。
【０００４】
このような保護リングをバーナ開口の開口周縁に取り付けることにより、開口周縁が保護される。また、煮こぼれ汁のコンロ本体内への確実な落下防止やガラス板の保護を図るため、上フランジ部とガラス板との間にパッキンを介挿したり、下フランジ部とガラス板との間にパッキンが介挿される。
【０００５】
【特許文献１】
特開平１０−３１８５４５号公報
【０００６】
【発明が解決しようとする課題】
ところで、上記従来のガラス天板では、保護リングが丸型であることから天板の清掃などの際に保護リングが回って、ガラス板のバーナ開口周縁の表面や開口内周面を傷つけたり、保護リングとガラス板との間にパッキンが介挿されている場合には、保護リングの回動でパッキンが損耗したり、その結果脱落するといった不具合を生じることがあった。
【０００７】
本発明の課題は、清掃などの際に保護リングによってガラス天板に傷をつけたり、介挿されたパッキンが損耗したり脱落したりすることのないガスコンロを提供することである。
【０００８】
【課題を解決するための手段】
上記課題を解決すべく、本発明は、ガスバーナを収容するコンロ本体と、該コンロ本体の上面開口を覆う天板とからなるガスコンロであって、該天板は、ガラス板と、その外周縁部を囲繞する保護体と、前記ガラス板に開設したバーナ開口の開口周縁を保護する保護リングとからなり、前記保護リングは、前記バーナ開口内に挿入される筒部と、ガラス板の開口周縁上面と開口周縁下面に対向する、該筒部を介して連結される上下のフランジ部とを備え、前記下フランジ部に、前記保護体の一所に達し接触して前記保護リングの回動を阻止する延長部を形成したことを特徴とする。
【０００９】
本発明によれば、延長部の位置が保護体の上方にずれていても、下フランジの延長部による保護体への接触を容易にするため、延長部に下方への折り曲げ片を形成することができる。また、天板にこぼれた煮こぼれ汁のコンロ本体内への確実な落下防止を図るため、上フランジ部とガラス板との間にパッキンを介挿することができ、ガラス板の保護のため、下フランジ部とガラス板との間にパッキンを介挿することができる。
【００１０】
本発明では、ガラス天板の清掃などで人が保護リングに接触して擦っても、下フランジ部の延長部と保護体の接触部が保護リングの回動の抵抗となって、保護リングが回動しない。したがって、保護リングでガラス板のバーナ開口の開口周縁の表面やバーナ開口内周面を擦って傷付けたり、また、ガラス板と保護リングとの間にパッキンを介挿した場合には、保護リングで擦ってパッキンを損耗したり、その結果パッキンが脱落するといった不具合を生じることがない。
【００１１】
本発明の他の態様では、下フランジ部に、保護体の一所に達し接触して保護リングの回動を阻止する延長部を設ける代わりに、下フランジに、コンロ本体の一所に達し接触して保護リングの回動を阻止する延長部を設けた。
【００１２】
本発明のさらに他の態様は、ガスバーナを収容するコンロ本体と、該コンロ本体の上面開口を覆う天板とからなるガスコンロであって、該天板は、ガラス板と、その外周縁部を囲繞する保護体と、前記ガラス板に開設したバーナ開口の開口周縁を保護する保護リングとからなり、前記保護リングは、前記バーナ開口内に挿入される筒部と、ガラス板の開口周縁上面と開口周縁下面に対向する、該筒部を介して連結される上下のフランジ部とを備え、少なくとも前記下フランジ部とガラス板との間にパッキンを介挿したガスコンロにおいて、前記下フランジ部に前記介挿したパッキンを保持する環状凹部を形成したことを特徴とする。
【００１３】
ガラス板の下側に介挿したパッキンは、ガラス板によって圧接されるので、保護リングの回動により下フランジ部から摺動力が作用して、パッキンが下フランジ部から径方向に外れて脱落しやすいが、下フランジ部に設けた環状凹部にパッキンを保持しておけば、パッキンの径方向の移動を規制できるので、保護リングが回動しても、パッキンが下フランジ部から径方向に外れて脱落するのが防止される。
【００１４】
本発明によれば、下フランジ部の環状凹部の外周部の上端に、該上端から続いてガラス板と対向する水平部を設けることができる。このようにすれば、保護リングの回動で、下フランジがガラス板の下面に当たっても、水平な面でガラス板の下面に当たるので、ガラス板の下面に傷が付きづらくできる。さらに、水平部の先端部をガラス板から離反する方向に折曲した場合には、ガラス板の下面に水平部の先端面が当たることがないから、水平部の先端面にエッジやバリがあっても、ガラス板の下面が傷付くのを確実に防止できる。
【００１５】
【発明の実施の形態】
本発明のガスコンロの一実施の形態を図１〜４に基づき説明する。図１〜４において、ガスコロンは、コンロ本体５２の上面５２ａをガラス天板１０で覆ってなっている。コンロ本体５２は上面開放の矩形状の箱体からなり、システムキッチンのワークトップ５３に設けられた開口５３ａの周縁に、コンロ本体５２の周壁上端に折曲形成されたフランジ部５２ｂを係止させることにより、ワークトップ５３の開口５３ａに吊持して設置されている。
【００１６】
ガラス天板１０は、耐熱性ガラス板（セラミックガラス）２と、その外周縁部を囲繞する保護体３と、ガラス板２の左右の各位置に開設したバーナ開口２ａの開口周縁に取り付けた保護リング２０とを備え、バーナ開口２ａにコンロ本体５２内に収容したガスバーナ５４が臨み、ガラス板２の保護リング２０の外側に五徳５５が載置される。図４において、符号５６はバーナ５４の失火を検出するサーモカップルである。５９は炎ガイド５８と保護リング２０との間隙を覆う煮汁カバーである。
【００１７】
保護体３は、ガラス板２の外周縁部を支持する支持枠であるが、これと共にガラス板２の外周縁部を保護する部材でもある。したがって本発明では、この保護体３は、ガラス板２の外周縁部と支持枠との間に介挿した緩衝材を包含したものを意味する。本実施の形態では、保護体３を前後２本の長尺の枠材４、５と左右２本の短尺の枠材６、７とを矩形状に組み付けて形成し、枠材４、５、６、７の間にガラス板２の設置領域を設け、ガラス板２の外周縁部を支持させた。本例では、さらに、保護体３の後部の枠材７の後方に間隙を存して後部片８を差し渡して、枠材５、６、７、後部片８の間に開口１１を形成している。該開口１１は吸気口として利用される。後の枠材５と後部片８との間には開口１１に空気を導くフード状のガイド５７を載置することができる。
【００１８】
後部片８は、垂直壁８ａの下端から内側に水平に突出した縁部８ｂと垂直壁８ａの上端から外側に下る向きにカールした上に凸のフランジ部８ｃとを有する断面構造に形成されており、前の枠材４、左右の枠材６、７も同様の構造に形成されている。これら前の枠材４、左右の枠材６、７および後部片８の長手方向両端の端面は、内方に向けて狭幅となるように４５°の角度で傾斜されている。後の枠材５は、垂直壁５ａの下端から前方に水平に突出した縁部５ｂを有する断面構造に形成されている。後の枠材５の長手方向両端の縁部５ｂは、内側に向けて狭幅となるように４５°の角度で傾斜されている。
【００１９】
後部片８と右の枠材７とは、後部片８の縁部８ｂの端部に設けられた逆三角形状の頭部８ｂ１と枠材７の縁部７ｂの端部に設けられた三角形状の凹部７ｂ１とをかしめることにより結合される。後部片８と左の枠材６、前の枠材４と左の枠材６、前の枠材４と右の枠材７も同様に結合し、これら４本の枠材４、６、７、後部片８を額縁状に組み付ける。また後の枠材５と左の枠材６とは、後の枠材５の縁部５ｂに設けられた逆三角形状の頭部５ｂ１と左の枠材６の縁部６ｂの途中に設けられた三角形状の凹部６ｂ１とをかしめることにより結合する。後の枠材５と右の枠材７も同様に結合される。
【００２０】
ガラス板２の支持部は、前後の枠材４、５、左右の枠材６、７の水平の縁部４ｂ、５ｂ、６ｂ、７ｂとで形成される矩形状の支持枠辺で構成され、この上にガラス板２が載置される。載置されたガラス板２とこれら枠材４、５、６、７の垂直壁４ａ、５ａ、６ａ、７ａとの間には、緩衝材としてのシリコンコーキング材９を充填して、ガラス板２を保護体３に位置ずれしないようにしっかりと保持すると共に水密性を確保する。
【００２１】
保護リング２０は上リング２１と下リング２２とからなり、該上下のリング２１、２２は、バーナ開口２ａ内に挿入される筒部２１ｂ、２２ｂと、ガラス板２の開口周縁上面と開口周縁下面に対向する上下のフランジ部２１ａ、２２ａとを備え、本例では、下リング２２の筒部２２ｂがバーナ開口２ａに隙間を存して挿入され、上リング２１の筒部２１ｂが下リング２２の筒部２２ｂの内周に嵌合されている。この隙間は、保護リングが熱膨張してもガラス板２のバーナ開口２ａの内周面に力を及ぼさない寸法を取っている。
【００２２】
この上下のリング２１、２２の筒部２１ｂ、２２ｂは、両者が上下方向略全長に亙って嵌合する長さを有し、その一方、例えば上リング２１の筒部２１ｂには周方向複数箇所に係合孔２１ｃが形成され、下リング２２の筒部２２ｂには径方向内方に突出する周方向複数箇所に突起２２ｃが形成されている。そして各係合孔２１ｃに各突起２２ｃを係合して、上下のリング２１、２２が分離しないように両筒部２１と２２を結合している。このような保護リング２０をガラス板２のバーナ開口２ａの開口周縁に取り付けることによって、開口周縁が保護されている。なお、突起２２ｃを切起し爪で形成しているが、エンボス状の突起にしてもよい。
【００２３】
また、上フランジ部２１ａとガラス板２との間にはパッキン２３が介挿されており、調理器からこぼれた煮こぼれ汁が上リング２１とガラス板２との間の隙間からバーナ開口２ａを通ってガラス板２の下面に回り込むのをパッキン２３で阻止し、煮こぼれ汁のコンロ本体２内への確実な落下防止が図られている。下フランジ部２２ａとガラス板２との間には、ガラス板２の保護のためにパッキン２４が介挿されている。
【００２４】
本実施の形態では、下フランジ部２２ａに環状凹部２２ｄを設け、ガラス板２の下側に介挿したパッキン２４の下部を該凹部２２ｄに収容して保持している。この下フランジ２２ａの環状凹部２２ｄの外周部全周には、ガラス板２と狭間隙で対向する水平部２２ｆを凹部２２ｄの上端に続けて設けている。
【００２５】
ガラス板２の下側に介挿したパッキン２４は、上下のリング２１、２２を結合することによってガラス板２が圧接するので、保護リング２０の回動により下フランジ部２２ａから摺動力が作用し、パッキン２４が下フランジ部２２ａから径方向に外れて脱落しやすい。上記のように、下フランジ部２２ａに環状凹部２２ｄを設けて、該凹部２２ｄにパッキン２４を保持しておけば、パッキン２４の径方向の移動を規制できるので、パッキン２４が下フランジ部２２ａから径方向に外れて脱落するのが防止される。また凹部２２ｄを設けておけば、パッキン２４の位置決めが容易にでき、保護リング２０を取付ける際の組み立てを簡単にできる。また凹部２２ｄの外周部に水平部２２ｆを設けてガラス板２と対向させておけば、下フランジ２２がガラス板２の下面に当たっても、ガラス板２の下面に傷が付きづらい。
【００２６】
しかしながら、保護リング２０が回動すると、上フランジ部２１ａの外周の垂下部２１ｄがガラス板２のバーナ開口周縁の表面を擦ったり、下リング２２の筒部２２ｂがガラス板２のバーナ開口内周面を擦ったりする虞があり、これらの面に傷をつける危険性がある。
【００２７】
そこで、本発明では、下フランジ部２２ａに延長部２２ｅを設けて保護リング２０の回動防止手段とした。この延長部２２ｅは、下フランジ部２２ａの直径と略同一寸法の幅で下フランジ部２２ａの水平部２２ｆから一方向に水平に伸び、ガラス板２の保護体３の一所に達して接触する長さを有している。本実施の形態では、延長部２２ｅは保護体３の左右の枠材６、７と平行にガラス板２の後方に伸び、保護体３の後の枠材５の垂直壁５ａ下端から前方に水平に伸びた縁部５ｂの前端に達して接触している。
【００２８】
好ましくは、延長部２２ｅの幅方向両側部に下方への折り曲げ片２２ｅ１を設ける。このようにすれば、単なる延長部２２ｅの板厚だけによる縁部５ｂの前端との接触でなく、折曲片２２ｅ１により高さ方向にも接触部が得られるので、縁部５ｂの前端に容易に接触することができ、縁部５ｂの前端との接触を確実にすることができる。また、折り曲げ片２２ｅ１により延長部２２ｅの剛性が向上し、延長部２２ｅの変形を防止することができる。この剛性は折り曲げ片２２ｅ１が長い程よいが、図に示すｗが０でない、即ち少なくとも筒部２２ｂと折り曲げ片２２ｅ１とが一部で重なればよい。
【００２９】
本実施の形態によれば、ガラス天板１０の清掃などで人が保護リング２０に接触して擦っても、下フランジ部２２ａの延長部２２ｅと後部枠材５の縁部５ｂとの接触部が保護リング２０の回動の抵抗となって、保護リング２０が回動しない。したがって、保護リング２０でガラス板２のバーナ開口２ａの開口周縁の表面や開口内周面を擦って傷付けたり、またガラス板２と保護リング２０との間に介挿したパッキン２３や２４を保護リング２０で擦って損耗したり、その結果パッキンが脱落するといった不具合を生じることがない。また下フランジ部２２ａに設けた環状凹部２２ｄにパッキン２４を保持しているので、パッキン２４の径方向の移動を規制して下フランジ部２２ａから外れて脱落するのが防止される。また凹部２２ｄによってパッキン２４の位置決めが容易にでき、保護リング２０を取付ける際の組み立てを簡単にできる。さらに、凹部２２ｄの外周部に設けた水平部２２ｄをガラス板２と対向させているので、下フランジ２２がガラス板２の下面に当たっても、ガラス板２の下面に傷が付きづらい。
【００３０】
本発明の他の実施の形態を図５〜図７により説明する。本実施の形態では、ガスコンロのガラス天板３０は、ガラス板２の前寄りの左右各位置にバーナ開口２ａが、左右のバーナ開口２ａ間の後方位置にこれよりも小径のバーナ開口２ｂが開設されており、バーナ開口２ａ、２ｂの周縁部にそれぞれ保護リング２０、保護リング２０Ａが取付けられている。
【００３１】
ガラス板２の外周縁部には断面コ字状のパッキン１２が嵌合して取付けられており、パッキン１２が取付けられたガラス板２の外周縁部を保護体３の支持枠が囲繞している。保護体３の支持枠は、左右２本の短尺の枠材１３、１４と、前後２本の長尺の枠材１６、１７とを固定具１５を用いて組み立てており、その途中でガラス板２を取付けることによって、保護体３の組み立て完了と同時に天板３０が完成する。この例では、先の実施の形態の開口１１がない保護体となっている。
【００３２】
固定具１５は、図６に示すように、略直角三角形状の水平部１５ａの二側縁から上方に突片１５ｂを突出させてなり、水平部１５ａの内方側端部に２つのねじ孔１５ｃが設けられている。左の枠材１４は、図５のＸ−Ｘ線矢視図である図７に示すように、上片１４ａ、側片１４ｂ、下片１４ｃによって内方に向けて開口した凹溝１４ｄを画成した断面略コ字状に形成され、側片１４ｂの厚みにはねじ止め用溝１４ｅが形成されている。凹溝１４ｄはパッキン１２を取付けたガラス板２の外周縁部を収容する支持部である。また上片１４ａには外縁が連続的に外方へつながるフランジ部１４ｆが形成されている。右の枠材１３、前後の枠材１６、１７も同様の構造に形成されている。これら各枠材の長手方向両端の端面は、内方に向けて狭い幅となるように４５°の角度で傾斜されている。
【００３３】
天板３０を組み立てるには、まず、２つの例えば枠材１４、１７の一端を互いに当接し、その一端を当接した枠材１４、１７の下片１４ｃ、１７ｃの下面に固定具１５の水平部１５ａを当て、枠材１４、１７の側片の外面に固定具１５の突片１５ｂを当てて、その状態で固定具１５のねじ孔１５ｃからねじ１５ｄを枠材１４、１７の溝１４ｅ、１７ｅにねじ込んで、枠材１４、１７に固定具１５を固定する。この一端が固定された枠材１４、１７の凹溝に、外周縁部にパッキン１２が取付けられたガラス板２の２側縁部を挿入し、ついでガラス板２の残りの２側縁部に残りの枠材１４、１６の凹溝を挿入して、固定された枠材１４、１７と残余の枠材１４、１６を、また残余の枠材１４、１６同士を固定具１５とねじ１５ｄで固定することにより、ガラス板２を囲繞した保護体３が額縁状に組み立てられ、ガラス天板３０が完成する。
【００３４】
本実施の形態においても、バーナ開口２ａの開口周縁部に取付けられた保護リング２０は、下リング２２の下フランジ部２２ａの両側部に下方向への折り曲げ片２２ｅ１を有する延長部２２ｅが設けられている。この延長部２２ｅは固定具１５の水平部１５ａの内端面の幅に合わせて幅を狭めて形成してあり、水平部１５ａの内端面に向けて伸びて該内端面に接触している。
【００３５】
またバーナ開口２ｂの開口周縁部に取付けられた保護リング２０Ａは、保護リング２０より小径である点を除いて同じで、保護リング２０の上下のリング２１、２２と同様な上下のリング２１Ａ、２２Ａからなり、下リング２２Ａの下フランジ部２２Ａ１の両側部に下方向への折り曲げ片２２Ｅ１を有する延長部２２Ｅが設けられている。この下フランジ部２２Ａ１の延長部２２Ｅは、左右の枠材１３、１４と平行にガラス板２の後方に伸びて、後の枠材１７におけるパッキン１２を取付けたガラス板２の後縁部保持用の凹溝の下片１７ｃの前端面に接触している。
【００３６】
特にこの例のガラス天板３０では、ガラス板２の外周にパッキン１２が取付けられており、このパッキン１２の厚さ分だけ下片１４ｃや固定具１５の水平部１５ａがガラス板２の裏面から離れることになるので、下方への折り曲げ片２６の先端が接触面として機能する。
【００３７】
なお、固定具１５の水平部１５ａの内側を突片１５ｂと反対側への折り曲げ片に形成することにより、接触部とすることもできる。
【００３８】
本実施の形態でも、ガラス天板３０の清掃などで人が保護リング２０、２０Ａに接触して擦っても、保護リング２０、２０Ａが回動することがなく、ガラス板２のバーナ開口２ａ、２ｂの開口周縁の表面やバーナ開口内周面を擦って傷付けたり、ガラス板２と保護リング２０、２０Ａとの間に介挿したパッキンを保護リングで擦って損耗したり、その結果パッキンが脱落するといった不具合を生じることがない。
【００３９】
図８に示す実施の形態では、図５における保護体３の左右の枠材１３、１４、前後の枠材１６、１７の代わりに用いられる左右の枠材１３１、１４１、前後の枠材１６１、１７１（後の枠材１４１のみ図示）は共に下片がなく、例えば枠材１４１と１６１に取付けた固定具１５１の水平部１５１ａと枠材１４１の上片１４１ａ、側片１４１ｂと、および水平部１５２ａと枠材１６１の上片、側片とにより、パッキン１２を取付けたガラス板２の隣り合う側縁部を保持している。枠材１４１と１７１とこれに取付けた固定具、枠材１３１と１６１とこれに取付けた固定具、枠材１３１と１７１とこれに取付けた固定具についても同様である。
【００４０】
本実施の形態では、保護リング２０の下リング２２の下フランジ部２２ａの延長部２２ｅを前後の枠材１６１、１７１と平行にガラス板２の側方に伸ばして、左右の枠材１３１、１４１におけるパッキン１２の下片１２１ａの前端に接触させた。
【００４１】
なお、この例でも、保護体３のパッキン１２以外の別の構成要素、即ち左右の枠材１３１、１４１、前後の枠材１６１、１７１あるいは固定具１５１の水平部に接触させてもよい。
【００４２】
図９に示す実施の形態では、天板の保護体３の外枠として、ステンレス鋼板のプレス加工により額縁状の枠部１８を一体に形成したものを使用した。額縁状の枠部１８は、水平な上面部１８ａと、該上面部１８ａに続く外方に下降する傾斜部１８ｂと、該傾斜部１８の下端に続く内巻きのカール部１８ｃとを全周に備え、カール部１８ｃの上端近くには長手方向の複数箇所から取付け部１８ｄが水平に突出し、取付け部１８ｄの先端部は上方に折曲して垂直部１８ｅに形成されている。また上面部１８ａの内方寄りの部分は、内方に向けて若干下降する上面傾斜部１８ｆに形成している。
【００４３】
そして保護体３としての枠部１８の枠部１８の取付け部１８ｄと、固定具１９とに設けた図示しないねじ穴を位置あわせして、ねじ１９ａにより固定具１９を取付け部１８ｄに取付ける。このようにして取付けた固定具１９と枠部１８の垂直部１８ｅと上面傾斜部１８ｆとにより、パッキン１２を取付けたガラス板２の側縁部を保持している。
【００４４】
本実施の形態では、保護リング２０の下フランジ部２２ａの延長部２２ｅを保護体３の固定具１９に向けて伸ばして、固定具１９の前端に接触させた。延長部２２ｅは、図３〜６に示した実施の形態と同様、下方への折り曲げ片２２ｅ１を備える。本実施の形態によっても、これまでの実施の形態と同様な効果を奏する。
【００４５】
図１０〜１１は、本発明のさらに他の実施の形態を示す。これまでの実施の形態では、いずれも、キッチンのワークトップの開口に吊持して設置されるドロップインタイプのガスコンロを例にとって説明したが、本実施の形態におけるガスコンロは、コンロ本体３２の下面の脚部３３をキッチンのワーク５３上に着地して載置する上置きタイプである。
【００４６】
コンロ本体３２の上面の開口３２ａを覆うガラス天板４０は、ガラス板２の周囲を額縁状の保護体４３で囲繞してなっている。この保護体４３は、水平なフランジ部４３ａの内周端から垂設した水平部４３ｂをガラス板２の外周部の上面に接触し、フランジ部４３ａの外周端から垂設した垂下部４３ｃをコンロ本体３２の側壁３４の上部寄りの位置に水平に設けた段部３４ａに垂下して、コンロ本体３２に設置されている。垂下部４３ｃの下端部は内側への折り畳み部４３ｄに形成されている。なお、ガラス板２は保護体４３とコーキング材Ｋにて接着されている。
【００４７】
ガラス板２に開設したバーナ開口２ａの周縁部には、これまでと同様、上下のリング２１、２２からなる保護リング２０が取付けられており、下リング２２の下フランジ２２ａにはコンロ本体３２の側壁３４方向に伸びる延長部２２ｅが設けられている。図１０〜１１において、図１〜９に付した符号と同一の符号は同一の部材を示す。
【００４８】
本実施の形態では、延長部２２ｅの両側部に下方への折り曲げ片を設ける代わりに、延長部２２ｅの先端に下方への折り曲げ片２７を設けた。そしてコンロ本体３２の側壁３４の上端から内側に突出してコンロ本体３２の上面の開口３２ａを画成する上縁部３５に、該折り曲げ片２７と接触する受接片２８を設けた。
【００４９】
受接片２８は、その水平部２８ａに矩形状の切り欠き部２９を有する断面Ｌ字形状の板からなり、受接片２８の垂直部２８ｂを側壁３４の段部３４ａ上の内側に後退した上側壁部３４ｂに当てて上縁部３５に取付けられる。受接片２８とガラス板２との干渉を防ぐために、水平部３５ａを有する凹嵌部３５ｂを上縁部３５に形成し、該凹嵌部３５の水平部３５ａに受接片２８の水平部２８ａをねじ２８ｃで取付ける。
【００５０】
下フランジ２２の延長部２２ｅの先端の下方への折り曲げ片２７は、コンロ本体３２の側壁３４の上縁部３５に取付けられた受接片２８の切り欠き部２９内に伸びて、切り欠き部２９の内側面に接触する。したがって、ガラス天板４０の清掃などで人が保護リング２０に接触して擦っても、下フランジ部２２ａの延長部２２ｅと受接片２８の切り欠き部２９との接触部が保護リング２０の回動の抵抗となって、保護リング２０が回動しない。
【００５１】
上記では、受接片２８をコンロ本体３２の側壁３４にねじ止めすることにより設けたが、側壁３４に受接片２８を直接形成してもよい。また下フランジ２２の延長部２２ｅに下方への折り曲げ片２７を設け、切り欠き部２９を受接片２８に設けたが、下方への折り曲げ片２７を受接片２８に設け、切り欠き部２９を下フランジ２２ｅの延長部２２ｅに設けてもよい。さらにはコンロ本体３２の側壁３４に受接片２８を設けないで、下フランジ２２の延長部２２ｅの下方への折り曲げ片２７をコンロ本体３２の側壁３４の内面に直接接触させて、保護リング２０の回動防止を行ってもよい。この例でも、下フランジ２２ａにパッキン２４の収容凹部を形成することができる。
【００５２】
図１２に本発明のさらに他の実施の形態を示す。本実施の形態では、天板のガラス板２のバーナ開口２ａの周縁部に取付けられた保護リング２０は、下リング３８の下フランジ３８ａに、これまでの実施の形態における下リング２２の下フランジ２２ａと違って、回り止め用の延長部が設けられていない。図１２において図２に付した符号と同一の符号は同一の部材を示す。
【００５３】
そこで、保護リング２０が回動しても、ガラス板２の下側に介挿したパッキン２４の脱落等を防ぐために、下フランジ部３８ａに環状凹部３８ｄを設け、ガラス板２の下側に介挿したパッキン２４の下部を該凹部３８ｄに収容して保持している。この下フランジ３８ａの環状凹部３８ｄの外周部全周には、ガラス板２と狭間隙で対向する水平部３８ｆを凹部３８ｄの上端に続けて設けている。また水平部３８ｆの先端部３８ｅは、図１２（ｂ）に示すように、ガラス板２から離反する方向に折曲し、好ましくは図１２（ａ）に示すように、内側に折り畳んだ折り畳み部に形成されている。図１２において、符号３８ｂは下リング３８の筒部、３８ｃはその係合片である。
【００５４】
ガラス板２の下側に介挿したパッキン２４は、上下のリング２１、３８を結合することによってガラス板２が圧接するので、保護リング２０の回動により下フランジ部３８ａから摺動力が作用し、パッキン２４が下フランジ部３８ａから径方向に外れて脱落しやすいが、上記のように、下フランジ部３８ａに環状凹部３８ｄを設けて、該凹部３８ｄにパッキン２４を保持しておけば、パッキン２４の径方向の移動を規制できるので、パッキン２４が下フランジ部３８ａから径方向に外れて脱落するのが防止される。また凹部３８ｄを設けておけば、パッキン２４の位置決めが容易にでき、保護リング２０を取付ける際の組み立てを簡単にできる。
【００５５】
また凹部３８ｄの外周部に水平部３８ｆを設けてガラス板２と対向させておけば、下フランジ３８ａがガラス板２の下面に当たっても、水平な面でガラス板２の下面に当たるので、ガラス板２の下面に傷が付きづらい。しかしながら、図１２（ｃ）に示すように、水平部３８ｆの先端部３８ｅが水平なままである場合には、水平部３８ｆの先端面にエッジやバリがあると、下フランジ３８ａがガラス板２の下面に当たったときに、ガラス板２の下面に傷が付く懸念がある。本実施の形態では、上記のように、水平部３８ｆの先端部３８ｅをガラス板２から離反する方向に折曲したので、ガラス板２の下面に水平部３８ｆの先端面が当たることがないから、水平部３８ｆの先端面にエッジやバリがあっても、ガラス板２の下面の傷付き防止を確実にできる。水平部３８ｆの先端部３８ｅを内側に折り畳んだ折り畳み部に形成した場合には、ガラス板２の傷付き防止効果を一層向上することができる。
【００５６】
【発明の効果】
以上の説明から明らかなように、本発明によれば、ガラス板の外周縁部を保護体で囲繞したガラス天板において、ガラス板のバーナ開口周縁部に取付けられる保護リングの下フランジ部に保護体あるいはコンロ本体の一所に達し接触して、保護リングの回動を阻止する延長部を形成したので、清掃などの際に保護リングが回ってガラス板に傷をつけたり、保護リングとガラス板との間に介挿されたパッキンが損耗したり脱落したりするのを防止することができる。また、下フランジ部にガラス板の下に介挿したパッキンを収容する環状凹部を設けたので、パッキンが下フランジ部から径方向に外れて脱落するのが防止される。
【図面の簡単な説明】
【図１】本発明のガスコンロの一実施の形態における天板を示す平面図（ａ）および裏面図（ｂ）である。
【図２】図１の天板のバーナ開口周縁部に取付けた保護リングの延長部による回動阻止法を示す断面図（ａ）および保護リングの取付け部の拡大断面図（ｂ）である。
【図３】図２の保護リングの下リングを示す斜視図である。
【図４】ガスコンロの全体を示す一部省略断面図である。
【図５】本発明のガスコンロの他の実施の形態における天板を示す裏面図である。
【図６】図５の天板のガラス板を取付ける固定具を示す斜視図である。
【図７】図５の天板における保護リングの延長部による回動阻止法を示す断面図である。
【図８】本発明のガスコンロのさらに他の実施の形態における保護リングの延長部による回動阻止法を示す断面図である。
【図９】本発明のガスコンロのさらに他の実施の形態における保護リングの延長部による回動阻止法を示す断面図である。
【図１０】本発明のガスコンロのさらに他の実施の形態における保護リングの延長部による回動阻止法を示す一部省略斜視図である。
【図１１】図１０の実施の形態の回動阻止法を示す断面図である。
【図１２】本発明のガスコンロのさらに他の実施の形態における保護リングの取付け部を示す断面図で、保護リングの好適例を示す図（ａ、ｂ）および比較例を示す図（ｃ）である。
【符号の説明】
２ガラス板
２ａバーナ開口
３保護体
４〜７枠材
８後部片
９コーキング材
１０ガラス天板
１２パッキン
１５固定具
２０保護リング
２１上リング
２１ｂ上フランジ部
２２下リング
２２ｂ下フランジ部
２２ｄ環状凹部
２２ｅ延長部
２３、２４パッキン
２６下方への折り曲げ片[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gas stove in which the upper surface of a stove main body is covered with a glass top plate having an outer peripheral edge portion of a glass plate surrounded by a protective body, and more particularly, to an improvement in a protection ring attached to a periphery of a burner opening of the glass top plate.
[0002]
[Prior art]
A glass top stove that covers the upper surface of a stove body with a glass top plate in which an outer peripheral portion of a glass plate is protected with a protective body such as a frame is known. Protective ring is installed for.
[0003]
Conventionally, this protection ring has a cylindrical portion inserted into the burner opening, and upper and lower flange portions facing the upper and lower peripheral edges of the opening of the glass plate, and the upper and lower flange portions are interposed through the cylindrical portion. A configuration in which the components are connected is known (for example, see FIG. 2 of Patent Document 1).
[0004]
By attaching such a protection ring to the periphery of the burner opening, the periphery of the opening is protected. In addition, in order to reliably prevent the boiling water from falling into the stove body and protect the glass plate, insert a packing between the upper flange portion and the glass plate, or insert a packing between the lower flange portion and the glass plate. Packing is inserted.
[0005]
[Patent Document 1]
JP-A-10-318545
[0006]
[Problems to be solved by the invention]
By the way, in the above-mentioned conventional glass top plate, since the protection ring is a round shape, the protection ring rotates during cleaning of the top plate and the like, or the surface of the burner opening peripheral edge of the glass plate or the inner peripheral surface of the opening is damaged, When the packing is interposed between the protection ring and the glass plate, the rotation of the protection ring may cause the packing to be worn or to fall off as a result.
[0007]
An object of the present invention is to provide a gas stove that does not damage the glass top plate by a protective ring during cleaning or the like, and does not cause the inserted packing to be worn or dropped.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a gas stove comprising a stove main body for accommodating a gas burner, and a top plate covering an upper surface opening of the stove main body, wherein the top plate has a glass plate and an outer peripheral portion thereof. And a protection ring that protects the periphery of the opening of the burner opening formed in the glass plate. The protection ring includes a cylindrical portion that is inserted into the burner opening, and an upper surface of the periphery of the opening of the glass plate. And upper and lower flange portions facing the lower surface of the opening and connected to each other via the cylindrical portion, and reach the lower flange portion at one position of the protection body to prevent rotation of the protection ring. An extended portion is formed.
[0009]
According to the present invention, even if the position of the extension portion is shifted above the protection body, a bent piece is formed on the extension portion so as to facilitate the contact of the extension portion of the lower flange with the protection body. Can be. In addition, packing can be inserted between the upper flange part and the glass plate to ensure that the boiled spilled juice spilled on the top plate does not fall into the stove body, and to protect the glass plate, A packing can be inserted between the lower flange portion and the glass plate.
[0010]
According to the present invention, even if a person comes into contact with the protection ring and rubs it during cleaning of the glass top plate or the like, the extension of the lower flange portion and the contact portion of the protection body serve as resistance of the rotation of the protection ring, and the protection ring is moved. Does not rotate. Therefore, if the protective ring rubs and scratches the surface of the peripheral edge of the burner opening of the glass plate or the inner peripheral surface of the burner opening, or if a packing is inserted between the glass plate and the protective ring, the protective ring is used. There is no problem that the packing is worn out by rubbing or the packing is dropped as a result.
[0011]
In another aspect of the present invention, instead of providing an extension at the lower flange portion to reach and contact the protective body and prevent the rotation of the protection ring, the lower flange and the contact at the location of the stove body reach the lower flange. Then, an extension for preventing rotation of the protection ring was provided.
[0012]
Still another aspect of the present invention is a gas stove including a stove main body that accommodates a gas burner and a top plate that covers an upper opening of the stove body, wherein the top plate surrounds a glass plate and an outer peripheral edge thereof. And a protection ring for protecting the periphery of the opening of the burner opening formed in the glass plate. The protection ring includes a cylindrical portion inserted into the burner opening, an upper surface of the periphery of the opening of the glass plate, and an opening. An upper and lower flange portion opposed to the peripheral lower surface and connected via the cylindrical portion, and at least a gas stove in which packing is inserted between the lower flange portion and the glass plate; An annular recess for holding the inserted packing is formed.
[0013]
Since the packing inserted under the glass plate is pressed against the glass plate, a sliding force is applied from the lower flange by the rotation of the protective ring, and the packing comes off in a radial direction from the lower flange and falls off. It is easy, but if the packing is held in the annular recess provided in the lower flange, the movement of the packing in the radial direction can be regulated, so even if the protective ring rotates, the packing will come off the lower flange part in the radial direction. From falling off.
[0014]
According to the present invention, a horizontal portion facing the glass plate can be provided at the upper end of the outer peripheral portion of the annular concave portion of the lower flange portion continuously from the upper end. With this configuration, even if the lower flange hits the lower surface of the glass plate due to the rotation of the protection ring, the lower surface of the glass plate hits the lower surface of the glass plate in a horizontal plane, so that the lower surface of the glass plate can be hardly damaged. Furthermore, when the leading end of the horizontal portion is bent in a direction away from the glass plate, there is no edge or burr on the leading end surface of the horizontal portion because the leading end surface of the horizontal portion does not hit the lower surface of the glass plate. However, it is possible to reliably prevent the lower surface of the glass plate from being damaged.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of a gas stove according to the present invention will be described with reference to FIGS. 1 to 4, the gas colon has an upper surface 52 a of a stove body 52 covered with a glass top plate 10. The stove main body 52 is formed of a rectangular box with an open top, and a flange 52b bent at the upper end of the peripheral wall of the stove main body 52 is engaged with the periphery of an opening 53a provided in the worktop 53 of the system kitchen. As a result, the worktop 53 is suspended from the opening 53a.
[0016]
The glass top plate 10 includes a heat-resistant glass plate (ceramic glass) 2, a protective body 3 surrounding the outer peripheral edge thereof, and a protection attached to an opening peripheral edge of the burner openings 2 a opened at left and right positions of the glass plate 2. The gas burner 54 accommodated in the stove body 52 faces the burner opening 2 a, and the glass 55 is placed outside the protection ring 20 of the glass plate 2. In FIG. 4, reference numeral 56 denotes a thermocouple for detecting misfire of the burner 54. Reference numeral 59 denotes a boiling juice cover that covers a gap between the flame guide 58 and the protection ring 20.
[0017]
The protector 3 is a support frame that supports the outer peripheral edge of the glass plate 2, and is also a member that protects the outer peripheral edge of the glass plate 2. Therefore, in the present invention, the protection body 3 means a protection body including a cushioning material inserted between the outer peripheral edge of the glass plate 2 and the support frame. In the present embodiment, the protection body 3 is formed by assembling two long front and rear long frame members 4 and 5 and two left and right short frame members 6 and 7 into a rectangular shape. The installation area of the glass plate 2 was provided between 6 and 7, and the outer peripheral edge of the glass plate 2 was supported. In this example, the rear piece 8 is further inserted with a gap behind the frame member 7 at the rear part of the protection body 3, and an opening 11 is formed between the frame members 5, 6, 7 and the rear piece 8. I have. The opening 11 is used as an intake port. A hood-shaped guide 57 that guides air to the opening 11 can be placed between the rear frame member 5 and the rear piece 8.
[0018]
The rear piece 8 is formed in a cross-sectional structure having an edge portion 8b horizontally protruding inward from the lower end of the vertical wall 8a and an upwardly convex flange portion 8c curled outward from the upper end of the vertical wall 8a. The front frame member 4 and the left and right frame members 6 and 7 have the same structure. End surfaces of both ends in the longitudinal direction of the front frame member 4, the left and right frame members 6, 7 and the rear piece 8 are inclined at an angle of 45 ° so as to become narrower inward. The rear frame member 5 is formed in a cross-sectional structure having an edge 5b horizontally projecting forward from the lower end of the vertical wall 5a. Edges 5b at both ends in the longitudinal direction of the later frame member 5 are inclined at an angle of 45 ° so as to become narrower inward.
[0019]
The rear piece 8 and the right frame member 7 have an inverted triangular head 8b1 provided at the end of the edge 8b of the rear piece 8 and a triangular shape provided at the end of the edge 7b of the frame 7. By crimping the concave portion 7b1. The rear piece 8 and the left frame member 6, the front frame member 4 and the left frame member 6, and the front frame member 4 and the right frame member 7 are connected in the same manner, and these four frame members 4, 6 and 7 are combined. Then, the rear piece 8 is assembled in a frame shape. The rear frame member 5 and the left frame member 6 are provided in the middle of the inverted triangular head 5b1 and the edge 6b of the left frame member 6 provided on the edge 5b of the rear frame member 5. The triangular concave portions 6b1 are joined together by swaging. The rear frame member 5 and the right frame member 7 are similarly connected.
[0020]
The support portion of the glass plate 2 is configured by a rectangular support frame side formed by the front and rear frame members 4 and 5 and the horizontal edges 4b, 5b, 6b and 7b of the left and right frame members 6 and 7, The glass plate 2 is placed on this. A silicon caulking material 9 as a buffer is filled between the placed glass plate 2 and the vertical walls 4a, 5a, 6a, 7a of the frame members 4, 5, 6, 7. Is firmly held on the protective body 3 so as not to be displaced, and watertightness is ensured.
[0021]
The protection ring 20 includes an upper ring 21 and a lower ring 22. The upper and lower rings 21 and 22 are cylindrical portions 21b and 22b inserted into the burner opening 2a, and the upper and lower peripheral edges of the opening of the glass plate 2. And upper and lower flange portions 21a and 22a opposed to the lower ring 22. In this example, the cylindrical portion 22b of the lower ring 22 is inserted with a gap into the burner opening 2a, and the cylindrical portion 21b of the upper ring 21 is It is fitted on the inner periphery of the cylindrical portion 22b. This gap has such a size that it does not exert a force on the inner peripheral surface of the burner opening 2a of the glass plate 2 even if the protective ring thermally expands.
[0022]
The cylindrical portions 21b and 22b of the upper and lower rings 21 and 22 have a length that fits over substantially the entire length in the vertical direction. An engagement hole 21c is formed at a location, and a projection 22c is formed at a plurality of locations in the circumferential direction that protrude inward in the radial direction on the cylindrical portion 22b of the lower ring 22. Each of the projections 22c is engaged with each of the engagement holes 21c, and the two cylindrical portions 21 and 22 are connected so that the upper and lower rings 21 and 22 do not separate. By attaching such a protection ring 20 to the periphery of the burner opening 2a of the glass plate 2, the periphery of the opening is protected. In addition, although the projection 22c is formed by cutting and raising the nail, it may be an embossed projection.
[0023]
Further, a packing 23 is interposed between the upper flange portion 21a and the glass plate 2, and the boiled spilled juice spilled from the cooker passes through the gap between the upper ring 21 and the glass plate 2 to open the burner opening 2a. The gasket 23 is prevented from passing through to the lower surface of the glass plate 2 by the packing 23, so that the boiled juice can be reliably prevented from falling into the stove body 2. A packing 24 is interposed between the lower flange portion 22 a and the glass plate 2 to protect the glass plate 2.
[0024]
In the present embodiment, an annular concave portion 22d is provided in the lower flange portion 22a, and the lower portion of the packing 24 inserted below the glass plate 2 is accommodated and held in the concave portion 22d. A horizontal portion 22f facing the glass plate 2 with a narrow gap is provided continuously to the upper end of the concave portion 22d around the entire outer peripheral portion of the annular concave portion 22d of the lower flange 22a.
[0025]
Since the glass plate 2 is pressed against the packing 24 inserted under the glass plate 2 by connecting the upper and lower rings 21 and 22, a sliding force is applied from the lower flange portion 22 a by the rotation of the protection ring 20. In addition, the packing 24 is easily removed from the lower flange portion 22a in the radial direction. As described above, if the annular concave portion 22d is provided in the lower flange portion 22a and the packing 24 is held in the concave portion 22d, the movement of the packing 24 in the radial direction can be regulated. It is prevented from falling off in the radial direction and falling off. In addition, if the concave portion 22d is provided, the positioning of the packing 24 can be facilitated, and the assembly at the time of mounting the protection ring 20 can be simplified. In addition, if the horizontal portion 22f is provided on the outer peripheral portion of the concave portion 22d and is opposed to the glass plate 2, even if the lower flange 22 hits the lower surface of the glass plate 2, the lower surface of the glass plate 2 is hardly damaged.
[0026]
However, when the protection ring 20 rotates, the hanging portion 21d of the outer periphery of the upper flange portion 21a rubs the surface of the peripheral edge of the burner opening of the glass plate 2, or the cylindrical portion 22b of the lower ring 22 causes the inner peripheral portion of the burner opening of the glass plate 2 to rotate. There is a risk of rubbing the surfaces and there is a risk of damaging these surfaces.
[0027]
Therefore, in the present invention, the extension portion 22e is provided on the lower flange portion 22a to serve as a rotation preventing means of the protection ring 20. The extension portion 22e extends in one direction horizontally from the horizontal portion 22f of the lower flange portion 22a with a width substantially the same as the diameter of the lower flange portion 22a, and reaches one position of the protection body 3 of the glass plate 2 and comes into contact therewith. Have a length. In the present embodiment, the extension portion 22e extends rearward of the glass plate 2 in parallel with the left and right frame members 6 and 7 of the protective body 3, and extends forward from the lower end of the vertical wall 5a of the frame member 5 behind the protective body 3. And reaches and contacts the front end of the edge 5b.
[0028]
Preferably, a bent piece 22e1 is provided on both sides in the width direction of the extension 22e. In this way, the bent portion 22e1 can provide a contact portion in the height direction as well as the contact with the front end of the edge portion 5b due to only the thickness of the extension portion 22e. And the contact with the front end of the edge 5b can be ensured. Moreover, the rigidity of the extension 22e is improved by the bent piece 22e1, and the deformation of the extension 22e can be prevented. This rigidity is better as the bent piece 22e1 is longer, but it is sufficient that w shown in the drawing is not 0, that is, at least the cylindrical portion 22b and the bent piece 22e1 partially overlap.
[0029]
According to the present embodiment, even when a person comes into contact with and rubs against protection ring 20 for cleaning glass top plate 10 or the like, contact portion between extension portion 22e of lower flange portion 22a and edge portion 5b of rear frame member 5 is provided. Is the resistance of the rotation of the protection ring 20, and the protection ring 20 does not rotate. Therefore, the protective ring 20 rubs and scratches the surface of the peripheral edge of the burner opening 2a of the glass plate 2 and the inner peripheral surface of the opening, and protects the packings 23 and 24 inserted between the glass plate 2 and the protective ring 20. There is no problem such as wear due to rubbing with the ring 20 and, as a result, the packing falling off. In addition, since the packing 24 is held in the annular concave portion 22d provided in the lower flange portion 22a, the movement of the packing 24 in the radial direction is restricted, and the packing 24 is prevented from falling off the lower flange portion 22a. In addition, the positioning of the packing 24 can be facilitated by the concave portion 22d, and the assembly when the protection ring 20 is mounted can be simplified. Furthermore, since the horizontal portion 22d provided on the outer peripheral portion of the concave portion 22d faces the glass plate 2, even if the lower flange 22 hits the lower surface of the glass plate 2, the lower surface of the glass plate 2 is hardly damaged.
[0030]
Another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the glass top plate 30 of the gas stove has a burner opening 2a at each of the left and right positions near the front of the glass plate 2, and a smaller diameter burner opening 2b at a rear position between the left and right burner openings 2a. The protection ring 20 and the protection ring 20A are attached to the periphery of the burner openings 2a and 2b, respectively.
[0031]
A packing 12 having a U-shaped cross section is fitted and attached to the outer peripheral edge of the glass plate 2. The support frame of the protective body 3 surrounds the outer peripheral edge of the glass plate 2 to which the packing 12 is attached. I have. The support frame of the protection body 3 is constructed by assembling two short frame members 13 and 14 on the left and right and two long frame members 16 and 17 on the front and rear by using the fixing member 15, and a glass plate in the middle thereof. By attaching 2, the top plate 30 is completed at the same time when the assembly of the protection body 3 is completed. In this example, the protection body has no opening 11 of the above embodiment.
[0032]
As shown in FIG. 6, the fixing member 15 has a projecting piece 15b projecting upward from two side edges of a substantially right-angled triangular horizontal portion 15a, and two screw holes are formed at an inner end of the horizontal portion 15a. 15c is provided. The left frame member 14 defines a concave groove 14d opened inward by an upper piece 14a, a side piece 14b, and a lower piece 14c, as shown in FIG. The side piece 14b is formed with a screwing groove 14e in the thickness of the side piece 14b. The concave groove 14d is a supporting portion for accommodating the outer peripheral edge of the glass plate 2 to which the packing 12 is attached. The upper piece 14a is formed with a flange portion 14f whose outer edge is continuously connected to the outside. The right frame member 13 and the front and rear frame members 16 and 17 are formed in the same structure. The end faces at both ends in the longitudinal direction of these frame members are inclined at an angle of 45 ° so as to have a narrow width inward.
[0033]
In order to assemble the top plate 30, first, for example, two ends of the frame members 14 and 17 are brought into contact with each other, and the lower ends of the frame members 14 and 17 with which one ends are brought into contact with the lower surfaces of the lower pieces 14c and 17c. The projection 15b of the fixture 15 is applied to the outer surface of the side piece of the frame members 14 and 17, and in this state, the screws 15d are screwed from the screw holes 15c of the fixture 15 and the grooves 14e of the frame members 14 and 17, The fixing tool 15 is fixed to the frame members 14 and 17 by screwing it into 17e. The two side edges of the glass plate 2 having the packing 12 attached to the outer peripheral edge are inserted into the concave grooves of the frame members 14 and 17 having one end fixed thereto, and then into the remaining two side edges of the glass plate 2. The recessed grooves of the remaining frame members 14 and 16 are inserted, and the fixed frame members 14 and 17 and the remaining frame members 14 and 16 are connected to each other. By fixing, the protective body 3 surrounding the glass plate 2 is assembled in a frame shape, and the glass top plate 30 is completed.
[0034]
Also in the present embodiment, the protection ring 20 attached to the peripheral edge of the burner opening 2a is provided with extension portions 22e having downwardly bent pieces 22e1 on both sides of the lower flange portion 22a of the lower ring 22. ing. The extension portion 22e is formed to have a reduced width in accordance with the width of the inner end surface of the horizontal portion 15a of the fixture 15, extends toward the inner end surface of the horizontal portion 15a, and contacts the inner end surface.
[0035]
The protection ring 20A attached to the peripheral edge of the burner opening 2b is the same except that it has a smaller diameter than the protection ring 20, and the upper and lower rings 21A and 22A are the same as the upper and lower rings 21 and 22 of the protection ring 20. And extension portions 22E having downwardly bent pieces 22E1 are provided on both sides of the lower flange portion 22A1 of the lower ring 22A. The extension portion 22E of the lower flange portion 22A1 extends rearward of the glass plate 2 in parallel with the left and right frame members 13 and 14, and holds the rear edge of the glass plate 2 to which the packing 12 of the rear frame member 17 is attached. In contact with the front end face of the lower piece 17c of the concave groove.
[0036]
In particular, in the glass top plate 30 of this example, the packing 12 is attached to the outer periphery of the glass plate 2, and the lower piece 14 c and the horizontal portion 15 a of the fixture 15 are separated from the back surface of the glass plate 2 by the thickness of the packing 12. Since they are separated from each other, the distal end of the bent piece 26 functions as a contact surface.
[0037]
In addition, by forming the inside of the horizontal portion 15a of the fixture 15 as a bent piece to the opposite side to the protruding piece 15b, it can also be a contact part.
[0038]
Also in the present embodiment, even if a person comes into contact with and rubs against the protection rings 20 and 20A for cleaning the glass top plate 30, the protection rings 20 and 20A do not rotate, and the burner openings 2a and 2b, the surface of the peripheral edge of the opening and the inner peripheral surface of the burner opening are rubbed and damaged, and the packing inserted between the glass plate 2 and the protective rings 20, 20A is rubbed with the protective ring, causing the packing to fall off. There is no such a problem that it is performed.
[0039]
In the embodiment shown in FIG. 8, left and right frame members 131, 141 and front and rear frame members 161, 161 used in place of the left and right frame members 13, 14 and the front and rear frame members 16, 17 of the protection body 3 in FIG. 171 (only the frame member 141 shown later) has no lower piece. For example, the horizontal portion 151a of the fixing tool 151 attached to the frame materials 141 and 161 and the upper piece 141a, the side piece 141b, and the horizontal portion of the frame material 141 are provided. The side edges of the glass plate 2 to which the packing 12 is attached are held by the upper piece 152a and the upper piece and the side piece of the frame material 161. The same applies to the frame members 141 and 171 and the fixture attached thereto, the frame members 131 and 161 and the fixture attached thereto, and the frame members 131 and 171 and the fixture attached thereto.
[0040]
In the present embodiment, the extension portion 22e of the lower flange portion 22a of the lower ring 22 of the protection ring 20 is extended to the side of the glass plate 2 in parallel with the front and rear frame members 161,171 so that the left and right frame members 131,141 are provided. In contact with the front end of the lower piece 121a of the packing 12 in FIG.
[0041]
Also in this example, another component other than the packing 12 of the protective body 3, that is, the left and right frame members 131 and 141, the front and rear frame members 161 and 171, or the horizontal part of the fixing tool 151 may be brought into contact.
[0042]
In the embodiment shown in FIG. 9, a frame-shaped frame portion 18 integrally formed by pressing a stainless steel plate is used as the outer frame of the top plate protection body 3. The frame-shaped frame portion 18 has a horizontal upper surface portion 18a, an inclined portion 18b descending outward following the upper surface portion 18a, and an inner winding curl portion 18c following the lower end of the inclined portion 18 all around. The mounting portion 18d horizontally protrudes from a plurality of locations in the longitudinal direction near the upper end of the curl portion 18c, and the tip of the mounting portion 18d is bent upward to form a vertical portion 18e. Further, a portion closer to the inside of the upper surface portion 18a is formed in an upper surface inclined portion 18f which slightly descends inward.
[0043]
Then, the mounting portion 18d of the frame portion 18 of the frame portion 18 as the protective body 3 is aligned with a screw hole (not shown) provided in the fixing device 19, and the fixing device 19 is mounted on the mounting portion 18d with the screw 19a. The side edge of the glass plate 2 to which the packing 12 is attached is held by the fixture 19 attached in this manner, the vertical portion 18e of the frame portion 18 and the upper inclined portion 18f.
[0044]
In the present embodiment, the extension 22e of the lower flange portion 22a of the protection ring 20 is extended toward the fixing tool 19 of the protection body 3 and is brought into contact with the front end of the fixing tool 19. The extension 22e includes a downwardly bent piece 22e1 as in the embodiment shown in FIGS. According to this embodiment, the same effects as those of the above embodiments can be obtained.
[0045]
10 to 11 show still another embodiment of the present invention. In the above embodiments, the drop-in type gas stove hung from the opening of the worktop of the kitchen has been described as an example. Is an upper type in which the leg 33 is landed on the work 53 in the kitchen.
[0046]
The glass top plate 40 that covers the opening 32 a on the upper surface of the stove body 32 is formed by surrounding the glass plate 2 with a frame-shaped protection body 43. The protector 43 contacts a horizontal portion 43b vertically extending from an inner peripheral end of a horizontal flange portion 43a with an upper surface of an outer peripheral portion of the glass plate 2, and a stove portion 43c vertically extended from an outer peripheral end of the flange portion 43a. The main body 32 is installed on the stove main body 32 so as to hang down on a step portion 34 a provided horizontally at a position near the upper portion of the side wall 34. The lower end of the hanging part 43c is formed in an inward folded part 43d. The glass plate 2 is adhered to the protective body 43 with a caulking material K.
[0047]
A protection ring 20 composed of upper and lower rings 21 and 22 is attached to the periphery of the burner opening 2a opened in the glass plate 2 as before, and the stove body 32 is attached to a lower flange 22a of the lower ring 22. An extension 22e extending in the direction of the side wall 34 is provided. 10 to 11, the same reference numerals as those in FIGS. 1 to 9 indicate the same members.
[0048]
In the present embodiment, instead of providing downwardly bent pieces on both sides of the extension 22e, a downwardly bent piece 27 is provided at the tip of the extension 22e. And, at the upper edge portion 35 projecting inward from the upper end of the side wall 34 of the stove main body 32 and defining the opening 32 a on the upper surface of the stove main body 32, a receiving and contacting piece 28 that comes into contact with the bent piece 27 is provided.
[0049]
The receiving piece 28 is formed of a plate having an L-shaped cross section having a rectangular notch 29 in a horizontal portion 28 a thereof, and the vertical portion 28 b of the receiving piece 28 is retreated to the inside on the step 34 a of the side wall 34. It is attached to the upper edge 35 in contact with the upper side wall 34b. In order to prevent interference between the receiving piece 28 and the glass plate 2, a concave fitting part 35 b having a horizontal part 35 a is formed on the upper edge 35, and the horizontal part 35 a of the concave fitting part 35 is 28a is attached with the screw 28c.
[0050]
The downwardly bent piece 27 of the extension 22 e of the lower flange 22 extends into the notch 29 of the receiving piece 28 attached to the upper edge 35 of the side wall 34 of the stove body 32, 29 contacts the inner surface. Therefore, even if a person comes into contact with the protection ring 20 and rubs it during cleaning of the glass top plate 40 or the like, the contact portion between the extension portion 22 e of the lower flange portion 22 a and the cutout portion 29 of the receiving piece 28 is formed by the protection ring 20. The protection ring 20 does not rotate due to the resistance of the rotation.
[0051]
In the above description, the receiving piece 28 is provided by being screwed to the side wall 34 of the stove main body 32. However, the receiving piece 28 may be formed directly on the side wall 34. Further, the downwardly bent piece 27 is provided on the extension 22e of the lower flange 22 and the notch 29 is provided on the receiving piece 28. However, the downwardly bent piece 27 is provided on the receiving piece 28, and the notch 29 is provided. May be provided on the extension 22e of the lower flange 22e. Further, the receiving piece 28 is not provided on the side wall 34 of the stove main body 32, and the downwardly bent piece 27 of the extension 22 e of the lower flange 22 is brought into direct contact with the inner surface of the side wall 34 of the stove main body 32, so that the protection ring 20 May be prevented. Also in this example, an accommodation recess for the packing 24 can be formed in the lower flange 22a.
[0052]
FIG. 12 shows still another embodiment of the present invention. In the present embodiment, the protection ring 20 attached to the periphery of the burner opening 2a of the top glass plate 2 is attached to the lower flange 38a of the lower ring 38 by the lower flange 22a of the previous embodiment. Unlike 22a, no extension is provided to prevent rotation. 12, the same reference numerals as those shown in FIG. 2 indicate the same members.
[0053]
Therefore, in order to prevent the packing 24 inserted below the glass plate 2 from dropping off even when the protection ring 20 rotates, an annular concave portion 38d is provided in the lower flange portion 38a, and an intermediate portion is provided below the glass plate 2. The lower part of the inserted packing 24 is accommodated and held in the recess 38d. A horizontal portion 38f facing the glass plate 2 with a narrow gap is provided continuously to the upper end of the concave portion 38d all around the outer peripheral portion of the annular concave portion 38d of the lower flange 38a. Further, the tip portion 38e of the horizontal portion 38f is bent in a direction away from the glass plate 2 as shown in FIG. 12 (b), and is preferably folded inward as shown in FIG. 12 (a). Is formed. In FIG. 12, reference numeral 38b denotes a cylindrical portion of the lower ring 38, and 38c denotes an engagement piece thereof.
[0054]
Since the glass plate 2 is pressed against the packing 24 inserted below the glass plate 2 by connecting the upper and lower rings 21 and 38, a sliding force is applied from the lower flange portion 38 a by the rotation of the protection ring 20. The packing 24 is likely to come off from the lower flange 38a in the radial direction and easily fall off. However, if the annular recess 38d is provided in the lower flange 38a and the packing 24 is held in the recess 38d as described above, Since the movement of the packing 24 in the radial direction can be restricted, the packing 24 is prevented from coming off in the radial direction from the lower flange portion 38a and falling off. If the recess 38d is provided, the positioning of the packing 24 can be facilitated, and the assembly when the protection ring 20 is mounted can be simplified.
[0055]
Further, if a horizontal portion 38f is provided on the outer peripheral portion of the concave portion 38d so as to face the glass plate 2, even if the lower flange 38a hits the lower surface of the glass plate 2, the lower flange 38a hits the lower surface of the glass plate 2 on a horizontal surface. Is hard to be scratched on the lower surface. However, as shown in FIG. 12 (c), when the distal end portion 38e of the horizontal portion 38f remains horizontal, if there is an edge or a burr on the distal end surface of the horizontal portion 38f, the lower flange 38a will be There is a concern that the lower surface of the glass plate 2 may be damaged when hitting the lower surface of the glass plate 2. In the present embodiment, since the distal end portion 38e of the horizontal portion 38f is bent in a direction away from the glass plate 2 as described above, the distal end surface of the horizontal portion 38f does not hit the lower surface of the glass plate 2. Even if there is an edge or a burr on the distal end surface of the horizontal portion 38f, the lower surface of the glass plate 2 can be reliably prevented from being damaged. When the tip portion 38e of the horizontal portion 38f is formed as a folded portion that is folded inward, the effect of preventing the glass plate 2 from being damaged can be further improved.
[0056]
【The invention's effect】
As is clear from the above description, according to the present invention, in the glass top plate in which the outer peripheral edge of the glass plate is surrounded by the protective body, the lower flange portion of the protective ring attached to the burner opening peripheral portion of the glass plate is protected. An extension that reaches the body or the stove body and contacts it to prevent rotation of the protection ring is formed.The protection ring rotates during cleaning and damages the glass plate. It is possible to prevent the gasket inserted between them from being worn or dropped. Further, since the annular recess for accommodating the packing inserted under the glass plate is provided in the lower flange portion, the packing is prevented from coming off in the radial direction from the lower flange portion and falling off.
[Brief description of the drawings]
FIG. 1 is a plan view (a) and a rear view (b) showing a top plate in an embodiment of a gas stove according to the present invention.
FIGS. 2A and 2B are a cross-sectional view showing a method of preventing rotation by an extension of a protection ring attached to a periphery of a burner opening of the top plate of FIG. 1 and an enlarged cross-sectional view of an attachment portion of the protection ring.
FIG. 3 is a perspective view showing a lower ring of the protection ring of FIG. 2;
FIG. 4 is a partially omitted cross-sectional view showing the entire gas stove.
FIG. 5 is a rear view showing a top plate in another embodiment of the gas stove of the present invention.
FIG. 6 is a perspective view showing a fixture for mounting the glass plate of the top plate of FIG. 5;
FIG. 7 is a cross-sectional view showing a method of preventing rotation of the top plate of FIG. 5 using an extension of a protection ring.
FIG. 8 is a cross-sectional view showing a rotation preventing method using an extension of a protection ring in still another embodiment of the gas stove of the present invention.
FIG. 9 is a cross-sectional view showing a rotation preventing method using an extension of a protection ring in still another embodiment of the gas stove of the present invention.
FIG. 10 is a partially omitted perspective view showing a method of preventing rotation by an extension of a protection ring in still another embodiment of the gas stove of the present invention.
FIG. 11 is a cross-sectional view showing a rotation preventing method according to the embodiment of FIG.
FIG. 12 is a cross-sectional view showing a mounting portion of a protection ring in still another embodiment of the gas stove according to the present invention, in which FIGS. is there.
[Explanation of symbols]
2 Glass plate
2a Burner opening
3 Protective body
4-7 Frame material
8 Rear piece
9 Caulking materials
10 Glass top plate
12 Packing
15 Fixture
20 Protection ring
21 Upper ring
21b Upper flange
22 Lower ring
22b Lower flange
22d annular recess
22e extension
23, 24 Packing
26 Folding pieces downward

Claims

A gas stove including a stove body that houses a gas burner and a top plate that covers an upper surface opening of the stove body,
The top plate includes a glass plate, a protection body surrounding the outer peripheral edge thereof, and a protection ring for protecting an opening periphery of a burner opening opened in the glass plate, and the protection ring is provided inside the burner opening. A tubular portion to be inserted, comprising upper and lower flange portions connected to each other through the tubular portion, facing the opening peripheral upper surface and the opening peripheral lower surface of the glass plate,
A gas stove, wherein an extension portion is formed on the lower flange portion to reach a position of the protection body and come into contact with the protection body to prevent rotation of the protection ring.

A gas stove including a stove body that houses a gas burner and a top plate that covers an upper surface opening of the stove body,
The top plate includes a glass plate, a protection body surrounding the outer peripheral edge thereof, and a protection ring for protecting an opening periphery of a burner opening opened in the glass plate, and the protection ring is provided inside the burner opening. A tubular portion to be inserted, comprising upper and lower flange portions connected to each other through the tubular portion, facing the opening peripheral upper surface and the opening peripheral lower surface of the glass plate,
A gas stove, wherein an extension portion is formed on the lower flange portion so as to reach a position of the stove main body and come into contact therewith to prevent rotation of the protection ring.

The gas stove according to claim 1, wherein a bent piece is formed downward at an extension of the lower flange portion.

The gas stove according to any one of claims 1 to 3, wherein a packing is interposed between one or both of the upper and lower flange portions and the glass plate.

A gas stove including a stove body that houses a gas burner and a top plate that covers an upper surface opening of the stove body,
The top plate includes a glass plate, a protection body surrounding the outer peripheral edge thereof, and a protection ring for protecting an opening periphery of a burner opening opened in the glass plate, and the protection ring is provided inside the burner opening. A tubular portion to be inserted, comprising upper and lower flange portions connected to each other through the tubular portion, which are opposed to the opening peripheral upper surface and the opening peripheral lower surface of the glass plate, at least between the lower flange portion and the glass plate. In the gas stove with packing inserted,
A gas stove, wherein an annular concave portion for holding the inserted packing is formed in the lower flange portion.

6. The gas stove according to claim 5, wherein a horizontal portion facing the glass plate is provided at an upper end of an outer peripheral portion of the annular concave portion of the lower flange portion continuously from the upper end.

The gas stove according to claim 6, wherein a tip portion of the horizontal portion is bent in a direction away from the glass plate.