JP7001267B2

JP7001267B2 - Gas stove

Info

Publication number: JP7001267B2
Application number: JP2018038955A
Authority: JP
Inventors: 英展中島
Original assignee: 株式会社パロマ
Priority date: 2018-03-05
Filing date: 2018-03-05
Publication date: 2022-01-19
Anticipated expiration: 2038-03-05
Also published as: JP2019152397A

Description

本発明は、ガスコンロに関するものである。 The present invention relates to a gas stove.

従来から提供されるガスコンロは、特許文献１で開示されるガスコンロのように、操作つまみによって火力調整操作を行うものが多い。この種のガスコンロで用いられる操作つまみは、操作軸に固定される基部（例えば円板状部分）から細長の突出部が突出した形態のものが一般的であり、使用者が火力調整操作等を行う場合、この突出部を指でつまみながら所望の方向の回転させるように操作を行う。 Many of the gas stoves provided conventionally are those in which the thermal power adjustment operation is performed by the operation knob, as in the gas stove disclosed in Patent Document 1. The operation knob used in this type of gas stove is generally in the form of an elongated protrusion protruding from a base (for example, a disk-shaped part) fixed to the operation shaft, and the user performs a thermal power adjustment operation or the like. When doing so, the operation is performed so as to rotate the protruding portion in a desired direction while pinching it with a finger.

特開２０１７－９２４２号公報Japanese Unexamined Patent Publication No. 2017-9242

従来のガスコンロでは、操作軸に固定される基部とつまみ部とが一体的に形成されていたが、美観向上やカラーバリエーション充実などを図るために、基部とつまみ部とを別部品として構成することが望まれる場合もある。しかし、このように別部品として構成した場合、つまみ部が撓みやすくなり、長期使用に伴う破損等の不具合が生じやすくなる虞がある。 In the conventional gas stove, the base and the knob part fixed to the operation shaft are integrally formed, but in order to improve the aesthetic appearance and enhance the color variation, the base part and the knob part should be configured as separate parts. May be desired. However, when it is configured as a separate part in this way, the knob portion tends to bend, and there is a possibility that problems such as breakage due to long-term use are likely to occur.

本発明は、上述した課題を解決するためになされたものであり、操作つまみの基部とつまみ部とを別部品として構成することができ、つまみ部の強度を高めやすい構成を提供することを目的とするものである。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a configuration in which a base portion of an operation knob and a knob portion can be configured as separate parts, and the strength of the knob portion can be easily increased. Is to be.

本発明の一つであるガスコンロは、
ガスバーナと、
上端側が開放した構成をなし、前記ガスバーナを収容する筐体部と、
前記筐体部の上端側を閉塞するように取り付けられるトッププレートと、
回転可能に構成された操作軸を有し、前記筐体部内に収容される燃料供給装置と、
前記操作軸の先端部に固定されるとともに、前記筐体部及び前記トッププレートによって囲まれた収容空間の外側に少なくとも一部が配置される操作つまみと、
を備え、
前記操作つまみは、
前記操作軸と嵌合する挿入孔が形成され、前記操作軸に固定される基部と、
前記基部に対して前記収容空間側とは反対側から固定されるつまみ部と、
前記基部と前記つまみ部とを連結する連結部材と、
を有し、
前記つまみ部は、
前記操作軸の方向と直交する所定方向に沿って長手状に構成されるとともに前記基部の表面から離れた位置で前記基部と対向して配置される天面部と、
前記天面部の幅方向両側にそれぞれ連結されるとともに前記天面部の長手方向に沿って配置される且つ前記天面部から前記基部側に延びた構成をなす一対の把持面部と、前記天面部の長手方向両側にそれぞれ連結されるとともに一対の前記把持面部の長手方向両側をそれぞれ連結する一対の連結壁部と、を含み、前記天面部とは反対側が開放した構成をなす外周壁部と、
前記外周壁部内において前記天面部の裏面側から前記基部側に突出した構成をなし、内部に前記連結部材が挿入される筒状部と、
を具備し、
前記基部は、
前記外周壁部の端部が当接する当接面部と、
前記操作軸の方向と直交する平面方向において前記当接面部の内側の領域で前記当接面部よりも突出し、前記つまみ部における前記外周壁部と前記筒状部との間の領域に嵌り込む嵌合凸部と、
前記平面方向において前記当接面部の内側の領域で凹状に形成され、前記筒状部の先端部が嵌り込む構成をなし、自身の底部に前記連結部材が挿入される孔部が形成された凹状部と、
を具備し、
前記平面方向において前記当接面部の内側の領域で前記挿入孔が形成され、
前記凹状部の底部と前記筒状部とが前記連結部材によって連結され、
前記嵌合凸部は、前記基部に前記つまみ部が固定された固定状態において、一対の前記把持面部のそれぞれの内壁面と対向し且つそれぞれの内壁面に沿って配置される一対の対向壁部を含む。 The gas stove, which is one of the present inventions, is
With a gas burner,
A housing portion that has a structure in which the upper end side is open and accommodates the gas burner,
A top plate attached so as to close the upper end side of the housing portion, and
A fuel supply device having a rotatable operating shaft and housed in the housing,
An operation knob fixed to the tip of the operation shaft and at least partially arranged outside the accommodation space surrounded by the housing and the top plate.
Equipped with
The operation knob is
An insertion hole that fits with the operating shaft is formed, and a base that is fixed to the operating shaft and
A knob portion fixed to the base portion from the side opposite to the accommodation space side,
A connecting member that connects the base portion and the knob portion,
Have,
The knob is
A top surface portion that is vertically configured along a predetermined direction orthogonal to the direction of the operation axis and is arranged so as to face the base portion at a position away from the surface of the base portion.
A pair of gripping surface portions connected to both sides in the width direction of the top surface portion and arranged along the longitudinal direction of the top surface portion and extending from the top surface portion toward the base portion, and the longitudinal length of the top surface portion. An outer peripheral wall portion including a pair of connecting wall portions connected to both sides in the direction and connecting both sides in the longitudinal direction of the gripping surface portion, and an outer peripheral wall portion having an open side opposite to the top surface portion.
A cylindrical portion having a structure in which the connecting member is inserted into the outer peripheral wall portion so as to project from the back surface side of the top surface portion to the base portion side.
Equipped with
The base is
The contact surface portion with which the end portion of the outer peripheral wall portion abuts,
Fitting that protrudes from the contact surface portion in the inner region of the contact surface portion in a plane direction orthogonal to the direction of the operation axis and fits into the region between the outer peripheral wall portion and the tubular portion in the knob portion. With the convex part,
In the plane direction, the concave shape is formed in the inner region of the contact surface portion, the tip portion of the tubular portion is fitted into the concave shape, and the hole portion into which the connecting member is inserted is formed in the bottom portion thereof. Department and
Equipped with
The insertion hole is formed in the region inside the contact surface portion in the plane direction, and the insertion hole is formed.
The bottom portion of the concave portion and the tubular portion are connected by the connecting member, and the concave portion is connected.
The fitting convex portion is a pair of facing wall portions that face each inner wall surface of the pair of gripping surface portions and are arranged along the respective inner wall surfaces in a fixed state in which the knob portion is fixed to the base portion. including.

このように、操作軸を回転操作し得る操作つまみが、別体として構成されるつまみ部及び基部を備えていれば、つまみ部と基部とを別々に製造すべき要請に対応することができる。
更に、基部につまみ部が固定された固定状態において、基部に形成された嵌合凸部がつまみ部に形成された外周壁部及び筒状部の間の領域に嵌り込む構成をなし、この嵌合凸部に形成された一対の対向壁部が、つまみ部の一対の把持面部のそれぞれの内壁面と対向し且つそれぞれの内壁面に沿って配置される構成をなす。このような構成であるため、使用者のつまみ操作によってつまみ部の一対の把持面部が内側に押されたとしても、一対の把持面部の内側への変位を一対の対向壁部によって規制することができる。よって、つまみ部の撓みに起因する劣化や破損等を抑えることができ、簡易な構成でつまみ部の強度を効果的に高めることができる。
しかも、嵌合凸部を外周壁部の内側に嵌り込ませた形で強度が高められるため、つまみ部と基部の境界が目立つことを抑え、美観を保持し得る補強構造となる。 As described above, if the operation knob capable of rotating the operation shaft includes the knob portion and the base portion configured as separate bodies, it is possible to meet the request that the knob portion and the base portion should be manufactured separately.
Further, in a fixed state in which the knob portion is fixed to the base portion, the fitting convex portion formed on the base portion is fitted into the region between the outer peripheral wall portion and the tubular portion formed on the knob portion, and this fitting is formed. The pair of facing wall portions formed on the convex protrusions are arranged so as to face each inner wall surface of the pair of gripping surface portions of the knob portion and to be arranged along the respective inner wall surfaces. With such a configuration, even if the pair of gripping surfaces of the knobs are pushed inward by the user's knob operation, the inward displacement of the pair of gripping surfaces can be restricted by the pair of facing wall portions. can. Therefore, deterioration and breakage due to bending of the knob portion can be suppressed, and the strength of the knob portion can be effectively increased with a simple configuration.
Moreover, since the strength is increased by fitting the fitting convex portion inside the outer peripheral wall portion, the boundary between the knob portion and the base portion is suppressed from being conspicuous, and the reinforcing structure can maintain the aesthetic appearance.

基部につまみ部が固定された固定状態において、対向壁部の一部が筒状部と把持面部との間に配置されていてもよい。
このように、筒状部と把持面部との間にまで対向壁部が入り込んでいれば、つまみ部の撓みをより一層抑えることができ、つまみ部の強度をより一層高めることができる。 In a fixed state in which the knob portion is fixed to the base portion, a part of the facing wall portion may be arranged between the tubular portion and the gripping surface portion.
As described above, if the facing wall portion is inserted between the tubular portion and the gripping surface portion, the bending of the knob portion can be further suppressed, and the strength of the knob portion can be further increased.

つまみ部は、長手方向中央部における一対の把持面部の幅が、長手方向両端部における一対の把持面部の幅よりも小さくなる括れ形状であってもよい。
このように構成されていれば、使用者が長手方向中央部をつまみやすくなり、操作つまみの回転操作を行いやすくなる。但し、このように使用者が特定の位置をつまみやすい構成であると、使用者による押圧が集中しやすくなるため、把持面部の撓み変形がより一層懸念されるが、つまみ部の強度を高めた構成となっているため、押圧集中に起因する破損や劣化を確実に抑えることができる。よって、使用者の使いやすさと、強度向上とを両立することができる。 The knob portion may have a constricted shape in which the width of the pair of gripping surface portions at the central portion in the longitudinal direction is smaller than the width of the pair of gripping surface portions at both ends in the longitudinal direction.
With such a configuration, it becomes easy for the user to pinch the central portion in the longitudinal direction, and it becomes easy for the user to perform the rotation operation of the operation knob. However, if the configuration is such that the user can easily pinch a specific position, the pressure by the user is likely to be concentrated, so that there is further concern about bending deformation of the gripping surface portion, but the strength of the knob portion is increased. Since it is configured, damage and deterioration due to pressure concentration can be reliably suppressed. Therefore, it is possible to achieve both ease of use for the user and improvement in strength.

基部は、板状に構成され、板厚方向一方側の第１板面が露出した構成をなし、板厚方向他方側の第２板面が収容空間側に配置される板状部と、板状部と一体的に構成されるとともに第１板面から盛り上がった構成をなし、天面部と対向しつつ天面部の長手方向に沿って長手状に配置される盛り上がり部と、板状部と一体的に構成され、第２板面側から突出した構成をなす突出部と、を具備していてもよい。そして、挿入孔が、突出部と盛り上がり部とに跨って形成されていてもよい。更に、盛り上がり部は、板状部の第１板面から湾曲しつつ立ち上がるように一対の立ち上がり部が形成されていてもよく、一対の立ち上がり部のそれぞれの端部に当接面部が設けられていてもよい。そして、基部につまみ部が固定された固定状態において、当接面部に当接する一対の把持面部の各表面と、一対の立ち上がり部の各表面とが、面一となるように連続していてもよい。
このように構成されていれば、つまみ部と基部とが別体として構成されていても、つまみ部と基部の境界付近のデザインが一体感のあるデザインとなる。よって、つまみ部と基部とを別々に製造すべき要請に応えつつ、更に美観の向上を図ることができる。 The base is formed in a plate shape, the first plate surface on one side in the plate thickness direction is exposed, and the second plate surface on the other side in the plate thickness direction is arranged on the accommodation space side, and the plate. It is integrated with the plate-shaped part and is integrally configured with the raised part that is vertically arranged along the longitudinal direction of the top surface while facing the top surface. It may be provided with a projecting portion which is configured to project from the second plate surface side. Then, the insertion hole may be formed so as to straddle the protruding portion and the raised portion. Further, the raised portion may be formed with a pair of rising portions so as to rise while curving from the first plate surface of the plate-shaped portion, and contact surface portions are provided at the respective ends of the pair of rising portions. You may. Then, in the fixed state in which the knob portion is fixed to the base portion, even if each surface of the pair of gripping surface portions that abuts on the contact surface portion and each surface of the pair of rising portions are continuous so as to be flush with each other. good.
If it is configured in this way, even if the knob portion and the base portion are configured as separate bodies, the design near the boundary between the knob portion and the base portion becomes a design with a sense of unity. Therefore, it is possible to further improve the aesthetic appearance while responding to the request that the knob portion and the base portion should be manufactured separately.

嵌合凸部は、前記筒状部の周囲において前記盛り上がり部の幅方向に延びる連結凸部を有していてもよい。更に、一対の前記対向壁部は、前記連結凸部の両端にそれぞれ連結される一対の対向凸部を有していてもよい。そして、各々の前記対向凸部は、前記盛り上がり部の長手方向において前記連結凸部の一方側及び他方側にそれぞれ延びた状態で、一対の前記把持面部のそれぞれの内壁面と対向し且つそれぞれの内壁面に沿って配置される構成であってもよい。
このようにすれば、連結凸部の両側において盛り上がり部の長手方向に延びるように対向凸部を長く配置することができ、より広い範囲にわたって把持面部の内側への変形を規制可能となる。しかも、一対の対向凸部の間に連結凸部が連結されるため、対向凸部の内側への変形についても強固に規制することができる。よって、把持面部が内側へ強く押されても、把持面部の内側への変形をより確実に抑えることができる。 The fitting convex portion may have a connecting convex portion extending in the width direction of the raised portion around the tubular portion. Further, the pair of facing wall portions may have a pair of facing convex portions connected to both ends of the connecting convex portions. Then, each of the opposed convex portions faces the inner wall surface of each of the pair of gripping surface portions in a state of extending to one side and the other side of the connecting convex portion in the longitudinal direction of the raised portion, and each of them. It may be arranged along the inner wall surface.
By doing so, the opposed convex portions can be arranged long on both sides of the connecting convex portion so as to extend in the longitudinal direction of the raised portion, and the deformation of the gripping surface portion inward can be regulated over a wider range. Moreover, since the connecting convex portions are connected between the pair of opposed convex portions, it is possible to firmly regulate the inward deformation of the opposed convex portions. Therefore, even if the gripping surface portion is strongly pushed inward, the deformation of the gripping surface portion inward can be suppressed more reliably.

本発明の一つであるガスコンロは、操作つまみの基部とつまみ部とを別部品として構成することができ、つまみ部の強度を高めやすい。しかも、美観の面でも有利になる。 In the gas stove, which is one of the present inventions, the base portion and the knob portion of the operation knob can be configured as separate parts, and the strength of the knob portion can be easily increased. Moreover, it is also advantageous in terms of aesthetics.

図１は、実施例１のビルトインコンロを概略的に例示する斜視図である。FIG. 1 is a perspective view schematically illustrating the built-in stove of the first embodiment. 図２は、図１のビルトインコンロの平面図である。FIG. 2 is a plan view of the built-in stove of FIG. 図３は、図１のビルトインコンロにおいて、トッププレート等を取り外した状態を例示する斜視図である。FIG. 3 is a perspective view illustrating a state in which the top plate and the like are removed in the built-in stove of FIG. 図４は、図２のＢ－Ｂ断面を概略的に示す断面概略図である。FIG. 4 is a schematic cross-sectional view schematically showing a cross section taken along the line BB of FIG. 図５は、図３からガスバーナ及び操作つまみを分解した分解斜視図である。FIG. 5 is an exploded perspective view of the gas burner and the operation knob disassembled from FIG. （Ａ）は、操作つまみを裏側から見た斜視図であり、（Ｂ）は、操作つまみを表側から見た斜視図である。(A) is a perspective view of the operation knob seen from the back side, and (B) is a perspective view of the operation knob seen from the front side. 図７は、操作つまみの平面図である。FIG. 7 is a plan view of the operation knob. 図８は、操作つまみを図６のＣ－Ｃ位置で切断して示す斜視図である。FIG. 8 is a perspective view showing the operation knob cut at the position CC of FIG. （Ａ）は、つまみ部を裏側から見た斜視図であり、（Ｂ）は、基部を表側から見た斜視図である。(A) is a perspective view of the knob portion as viewed from the back side, and (B) is a perspective view of the base portion as viewed from the front side. （Ａ）は、つまみ部の平面図であり、（Ｂ）は、基部の平面図である。(A) is a plan view of the knob portion, and (B) is a plan view of the base portion. （Ａ）は、つまみ部の正面図であり、（Ｂ）は、基部の正面図である。(A) is a front view of the knob portion, and (B) is a front view of the base portion. （Ａ）は、つまみ部の側面図であり、（Ｂ）は、基部の側面図である。(A) is a side view of the knob portion, and (B) is a side view of the base portion. （Ａ）は、つまみ部の底面図であり、（Ｂ）は、基部の底面図である。(A) is a bottom view of the knob portion, and (B) is a bottom view of the base portion.

＜実施例１＞
以下、本発明の一例を具現化したビルトインコンロ１について、図面に基づいて説明する。これらの図面は、本発明が採用しうる技術的特徴を説明するために用いられるものである。以下に記載されている装置の構造などは、特に特定的な記載がない限り、それのみに限定する趣旨ではなく、単なる説明例である。なお、ビルトインコンロ１は、ガスコンロの一例に相当する。 <Example 1>
Hereinafter, the built-in stove 1 embodying an example of the present invention will be described with reference to the drawings. These drawings are used to illustrate the technical features that may be employed in the present invention. Unless otherwise specified, the structure of the device and the like described below are not intended to be limited thereto, but are merely explanatory examples. The built-in stove 1 corresponds to an example of a gas stove.

ビルトインコンロ１は、図１、図２のような外観をなし、図３のような内部構成となっている。ビルトインコンロ１は、図２で概念的に示すキッチンカウンター１００の所定の載置面１０２Ａに形成されたカウンター孔１０４を通してキッチンカウンター１００の内部に一部（後述する周壁部３２等）が収容されつつ、筐体部３０の一部（被支持部３４）がカウンター孔１０４の周囲の載置面１０２Ａに支持された状態で設置される。図１のように、ビルトインコンロ１は、板状に構成されたトッププレート２が筐体部３０に対して着脱可能に取り付けられてなる。 The built-in stove 1 has the appearance as shown in FIGS. 1 and 2, and has an internal configuration as shown in FIG. The built-in stove 1 is partially accommodated inside the kitchen counter 100 (such as a peripheral wall portion 32 described later) through a counter hole 104 formed in a predetermined mounting surface 102A of the kitchen counter 100 conceptually shown in FIG. , A part of the housing portion 30 (supported portion 34) is installed in a state of being supported by the mounting surface 102A around the counter hole 104. As shown in FIG. 1, the built-in stove 1 has a plate-shaped top plate 2 detachably attached to a housing portion 30.

図３のように、筐体部３０は、ガスバーナ５，６などの各種部品を収容する収容空間の周囲に配置される周壁部３２と、周壁部３２の上端部において外側へと環状に張り出すように形成された被支持部３４と、を備え、上端部３０Ａ側が開放した箱状のケース体として構成されている。周壁部３２は、前後左右のそれぞれに壁部が配置され、これら壁部によって囲まれた内部空間にガスバーナ５，６などの各種部品を収容する構成をなす。 As shown in FIG. 3, the housing portion 30 projects outward in an annular shape at the peripheral wall portion 32 arranged around the accommodation space for accommodating various parts such as gas burners 5 and 6 and the upper end portion of the peripheral wall portion 32. It is configured as a box-shaped case body having a supported portion 34 formed so as to be provided and the upper end portion 30A side is open. The peripheral wall portion 32 is configured such that wall portions are arranged on each of the front, rear, left and right sides, and various parts such as gas burners 5 and 6 are accommodated in the internal space surrounded by these wall portions.

図１、図２で示すトッププレート２は、板状に構成された部品であり、図３等で示す筐体部３０の上端部３０Ａを覆うことにより筐体部３０の上端側に形成された開口部を閉塞する形で、筐体部３０に対して上方側から組み付けられる。トッププレート２は、矩形状の周縁部２Ｂを有しており、この周縁部２Ｂは、筐体部３０における被支持部３４の上方側を覆うように配置される。トッププレート２は、筐体部３０に対して着脱可能とされており、図２のように筐体部３０に組みつけられた状態でビルトインコンロ１の上面部として機能する。 The top plate 2 shown in FIGS. 1 and 2 is a plate-shaped component, and is formed on the upper end side of the housing portion 30 by covering the upper end portion 30A of the housing portion 30 shown in FIG. 3 and the like. It is assembled from above to the housing portion 30 so as to close the opening portion. The top plate 2 has a rectangular peripheral edge portion 2B, and the peripheral edge portion 2B is arranged so as to cover the upper side of the supported portion 34 in the housing portion 30. The top plate 2 is removable from the housing portion 30, and functions as the upper surface portion of the built-in stove 1 in a state of being assembled to the housing portion 30 as shown in FIG.

本構成では、トッププレート２において、ガスバーナ５，６の周囲に平坦な上面を有する平坦部２Ａが設けられており、この平坦部２Ａの上面と直交する方向をビルトインコンロ１の上下方向とする。また、上下方向と直交する方向のうち、図２のように平面視したときのビルトインコンロ１の長手方向がビルトインコンロ１の前後方向であり、これら上下方向及び前後方向と直交する方向がビルトインコンロ１の左右方向（幅方向）である。 In this configuration, in the top plate 2, a flat portion 2A having a flat upper surface is provided around the gas burners 5 and 6, and the direction orthogonal to the upper surface of the flat portion 2A is the vertical direction of the built-in stove 1. Further, among the directions orthogonal to the vertical direction, the longitudinal direction of the built-in controller 1 when viewed in a plan view as shown in FIG. 2 is the front-rear direction of the built-in controller 1, and the directions orthogonal to the vertical direction and the anteroposterior direction are the built-in controller. It is the left-right direction (width direction) of 1.

図１、図２のように、トッププレート２の後ろ側の開口部の内側にはガスバーナ５が設けられ、前側の開口部の内側にはガスバーナ６が設けられている。それぞれの開口部の上側には五徳１１，１２が設けられている。五徳１１，１２は、それぞれの上面に調理鍋（図示略）等の調理容器を載置し得る構成となっている。ガスバーナ５，６は、燃焼ガスを燃焼させて五徳１１，１２に載置された調理容器を加熱するように機能する。なお、本構成では、五徳１１，１２上に平坦な板材を配置したときのその板面と直交する方向がビルトインコンロ１の上下方向となっている。ガスバーナ５の中心にはセンサ部１５が設けられ、ガスバーナ６の中心にはセンサ部１６が設けられている。 As shown in FIGS. 1 and 2, a gas burner 5 is provided inside the opening on the rear side of the top plate 2, and a gas burner 6 is provided inside the opening on the front side. The trivets 11 and 12 are provided above each opening. The trivets 11 and 12 have a structure in which a cooking container such as a cooking pot (not shown) can be placed on the upper surface of each. The gas burners 5 and 6 function to burn the combustion gas to heat the cooking container placed on the trivets 11 and 12. In this configuration, when a flat plate is placed on the trivets 11 and 12, the direction orthogonal to the plate surface is the vertical direction of the built-in stove 1. A sensor unit 15 is provided at the center of the gas burner 5, and a sensor unit 16 is provided at the center of the gas burner 6.

（操作つまみ）
図１のように、ビルトインコンロ１の上面側において、トッププレート２の前端寄りの領域には、操作つまみ２１，２２がそれぞれ設けられている。左側の操作つまみ２１は、ガスバーナ５の点火操作や火力調整操作を行うための操作部であり、図３等で示す燃料供給装置１７の操作軸１７Ａを操作するための操作部となっている。右側の操作つまみ２２は、ガスバーナ６の点火操作や火力調整操作を行うための操作部であり、図３等で示す燃料供給装置１８の操作軸１８Ａを操作するための操作部となっている。燃料供給装置１７は、操作軸１７Ａの回転に応じて点火やガスバーナ５の点火や火力調節を行う公知の点火・火力調節装置として構成されており、燃料供給装置１８は、操作軸１８Ａの回転に応じてガスバーナ６の点火や火力調節を行う公知の点火・火力調節装置として構成されている。燃料供給装置１７，１８はいずれも大部分又は全部が筐体部３０内に挿入されている。なお、操作軸１７Ａ，１８Ａは、それぞれの先端部側の一部が筐体部３０外に突出して配置されていてもよく、操作軸１７Ａ，１８Ａの全体が筐体部３０内に収容されていてもよい。 (Operation knob)
As shown in FIG. 1, on the upper surface side of the built-in stove 1, operation knobs 21 and 22 are provided in the region near the front end of the top plate 2, respectively. The operation knob 21 on the left side is an operation unit for performing an ignition operation and a thermal power adjustment operation of the gas burner 5, and is an operation unit for operating the operation shaft 17A of the fuel supply device 17 shown in FIG. 3 or the like. The operation knob 22 on the right side is an operation unit for performing an ignition operation and a thermal power adjustment operation of the gas burner 6, and is an operation unit for operating the operation shaft 18A of the fuel supply device 18 shown in FIG. 3 or the like. The fuel supply device 17 is configured as a known ignition / thermal power adjustment device that ignites, ignites the gas burner 5, and adjusts the thermal power according to the rotation of the operation shaft 17A, and the fuel supply device 18 rotates the operation shaft 18A. It is configured as a known ignition / thermal power adjusting device that ignites the gas burner 6 and adjusts the thermal power accordingly. Most or all of the fuel supply devices 17 and 18 are inserted in the housing portion 30. The operation shafts 17A and 18A may be arranged so that a part of the tip side thereof projects outside the housing portion 30, and the entire operation shafts 17A and 18A are housed in the housing portion 30. You may.

図３～図５のように、操作つまみ２１は、操作軸１７Ａの先端部に固定されるとともに、一部又は全部が筐体部３０及びトッププレート２によって囲まれた収容空間９９（図４）の外側に配置される。操作つまみ２２は、操作軸１８Ａの先端部に固定されるとともに、一部又は全部が筐体部３０及びトッププレート２によって囲まれた収容空間９９の外側に配置される。なお、以下では、主に操作つまみ２１に着目して詳細を説明する。なお、操作つまみ２２も同様の構成をなしている。 As shown in FIGS. 3 to 5, the operation knob 21 is fixed to the tip of the operation shaft 17A, and a part or all of the operation knob 21 is surrounded by the housing portion 30 and the top plate 2 (FIG. 4). It is placed outside of. The operation knob 22 is fixed to the tip end portion of the operation shaft 18A, and is partially or wholly arranged outside the accommodation space 99 surrounded by the housing portion 30 and the top plate 2. In the following, the details will be described mainly focusing on the operation knob 21. The operation knob 22 has the same configuration.

図６、図８のように、操作つまみ２１は、基部８１、つまみ部８２、連結部材８３などを備える。基部８１は、操作軸１７Ａと嵌合する挿入孔８１Ａが形成され、操作軸１７Ａに固定される部材である。つまみ部８２は、基部８１に対して収容空間９９側とは反対側から固定される部材である。連結部材８３は、ねじ、ボルト等によって構成され、基部８１とつまみ部８２とを連結する部材である。 As shown in FIGS. 6 and 8, the operation knob 21 includes a base 81, a knob portion 82, a connecting member 83, and the like. The base 81 is a member in which an insertion hole 81A that fits with the operation shaft 17A is formed and fixed to the operation shaft 17A. The knob portion 82 is a member fixed to the base portion 81 from the side opposite to the accommodation space 99 side. The connecting member 83 is composed of screws, bolts, and the like, and is a member that connects the base portion 81 and the knob portion 82.

図９（Ａ）、図１０（Ａ）、図１１（Ａ）、図１２（Ａ）、図１３（Ａ）のように、つまみ部８２は、天面部８５、外周壁部８６、筒状部８８，８９などを備え、長手状且つ箱状に構成された部材である。なお、つまみ部８２においては、挿入孔８１Ａの方向（即ち、操作軸１７Ａの方向）を基準方向とし、基準方向と直交する方向のうち、つまみ部８２が延びる方向をつまみ部８２の長手方向及び天面部８５の長手方向とする。基準方向及びつまみ部８２の長手方向と直交する方向をつまみ部８２の幅方向及び天面部８５の幅方向とする。 As shown in FIGS. 9 (A), 10 (A), 11 (A), 12 (A), and 13 (A), the knob portion 82 has a top surface portion 85, an outer peripheral wall portion 86, and a tubular portion. It is a member having 88, 89, etc., and is configured in a long and box shape. In the knob portion 82, the direction of the insertion hole 81A (that is, the direction of the operation shaft 17A) is set as the reference direction, and among the directions orthogonal to the reference direction, the direction in which the knob portion 82 extends is the longitudinal direction of the knob portion 82 and the direction in which the knob portion 82 extends. The direction is the longitudinal direction of the top surface portion 85. The reference direction and the direction orthogonal to the longitudinal direction of the knob portion 82 are defined as the width direction of the knob portion 82 and the width direction of the top surface portion 85.

天面部８５は、操作軸１７Ａの方向と直交する所定方向に沿って長手状且つ板状に構成されるとともに基部８１の表面から離れた位置で基部８１と対向して配置される部位である。外周壁部８６は、天面部８５と一体的に構成され、つまみ部８２の外周壁を構成する部位であり、天面部８５とは反対側が開放した構成をなす。つまり、外周壁部８６は、一端に天面部８５が連結されており、他端側が開放した構成をなし、他端部（天面部８５とは反対側の端部）が開口部として構成されている。外周壁部８６は、天面部８５の幅方向両側にそれぞれ連結されるとともに天面部８５の長手方向に沿って配置され且つ天面部８５から基部８１側に延びた構成をなす一対の把持面部８６Ａ，８６Ｂと、天面部８５の長手方向両側にそれぞれ連結されるとともに一対の把持面部８６Ａ，８６Ｂの長手方向両側をそれぞれ連結する一対の連結壁部８６Ｃ，８６Ｄと、を備える。図１３（Ａ）のように、一対の把持面部８６Ａ，８６Ｂは、板状に構成されるとともにそれぞれの裏側（内部側）の板面（内壁面８７Ａ，８７Ｂ）を対向させた形態で幅方向に向かい合って配置されている。一対の連結壁部８６Ｃ，８６Ｄは、板状に構成されるとともにそれぞれの裏側（内部側）の板面を対向させた形態で幅方向に向かい合って配置されている。 The top surface portion 85 is a portion that is formed in a longitudinal shape and a plate shape along a predetermined direction orthogonal to the direction of the operation shaft 17A and is arranged so as to face the base portion 81 at a position away from the surface of the base portion 81. The outer peripheral wall portion 86 is integrally configured with the top surface portion 85, and is a portion constituting the outer peripheral wall of the knob portion 82, and has a configuration in which the side opposite to the top surface portion 85 is open. That is, the outer peripheral wall portion 86 is configured such that the top surface portion 85 is connected to one end and the other end side is open, and the other end portion (the end portion on the opposite side to the top surface portion 85) is configured as an opening portion. There is. The outer peripheral wall portions 86 are connected to both sides in the width direction of the top surface portion 85, are arranged along the longitudinal direction of the top surface portion 85, and extend from the top surface portion 85 to the base 81 side. The 86B is provided with a pair of connecting wall portions 86C and 86D that are connected to both sides of the top surface portion 85 in the longitudinal direction and are connected to both sides of the pair of gripping surface portions 86A and 86B in the longitudinal direction, respectively. As shown in FIG. 13A, the pair of gripping surface portions 86A and 86B are configured in a plate shape, and the plate surfaces (inner wall surfaces 87A and 87B) on the back side (inner side) of each are opposed to each other in the width direction. They are placed facing each other. The pair of connecting wall portions 86C and 86D are arranged in a plate shape and face each other in the width direction in a form in which the plate surfaces on the back side (inside side) of each are opposed to each other.

図８、図９（Ａ）のように、筒状部８８，８９は、外周壁部８６内において天面部８５の裏面側から基部８１側に突出した構成をなし、内部に連結部材８３が挿入される部位となっている。 As shown in FIGS. 8 and 9A, the tubular portions 88 and 89 have a configuration in which the outer peripheral wall portion 86 projects from the back surface side of the top surface portion 85 toward the base portion 81, and the connecting member 83 is inserted therein. It is a part to be used.

筒状部８８は、つまみ部８２の長手方向においてつまみ部８２の中央よりも連結壁部８６Ｃ側に配置されており、筒状部８８の外周面は、一対の連結壁部８６Ｃ，８６Ｄの内壁面及び一対の把持面部８６Ａ，８６Ｂの内壁面８７Ａ，８７Ｂから離間して配置されている。把持面部８６Ａの内壁面８７Ａと筒状部８８の外周面との間にはこれらを連結する連結壁８４Ａが設けられ、把持面部８６Ｂの内壁面８７Ｂと筒状部８８の外周面との間にはこれらを連結する連結壁８４Ｂが設けられている。上述の基準方向において筒状部８８，８９が突出する方向をつまみ部８２の高さ方向とした場合、天面部８５の裏面からの連結壁８４Ａ，８４Ｂの高さは、筒状部８８，８９の高さよりも小さく、一対の把持面部８６Ａ，８６Ｂの高さよりも小さくなっている。つまり、連結壁８４Ａ，８４Ｂにおける基部８１側の端部は、筒状部８８，８９における基部８１側の端部よりも天面部８５側であり、一対の把持面部８６Ａ，８６Ｂにおける基部８１側の端部よりも天面部８５側でとなっている。このような構成であるため、一対の把持面部８６Ａ，８６Ｂにおける基部８１側の端部付近の各内壁面８７Ａ，８７Ｂと筒状部８８の外周面との間には、隙間が構成されている。 The tubular portion 88 is arranged on the connecting wall portion 86C side of the center of the knob portion 82 in the longitudinal direction of the knob portion 82, and the outer peripheral surface of the tubular portion 88 is inside the pair of connecting wall portions 86C and 86D. The wall surface and the pair of gripping surface portions 86A and 86B are arranged apart from the inner wall surfaces 87A and 87B. A connecting wall 84A connecting these is provided between the inner wall surface 87A of the gripping surface portion 86A and the outer peripheral surface of the tubular portion 88, and between the inner wall surface 87B of the gripping surface portion 86B and the outer peripheral surface of the tubular portion 88. Is provided with a connecting wall 84B that connects them. When the direction in which the tubular portions 88 and 89 protrude in the above-mentioned reference direction is the height direction of the knob portion 82, the heights of the connecting walls 84A and 84B from the back surface of the top surface portion 85 are the tubular portions 88 and 89. It is smaller than the height of the pair of gripping surfaces 86A and 86B. That is, the end portion on the base 81 side of the connecting walls 84A and 84B is closer to the top surface portion 85 than the end portion on the base portion 81 side of the tubular portions 88 and 89, and is on the base 81 side of the pair of gripping surface portions 86A and 86B. It is on the top 85 side of the end. Due to such a configuration, a gap is formed between each inner wall surface 87A, 87B near the end portion on the base 81 side of the pair of gripping surface portions 86A, 86B and the outer peripheral surface of the tubular portion 88. ..

筒状部８９は、つまみ部８２の長手方向においてつまみ部８２の中央よりも連結壁部８６Ｄ側に配置されており、筒状部８９の外周面は、一対の連結壁部８６Ｃ，８６Ｄの内壁面及び一対の把持面部８６Ａ，８６Ｂの内壁面８７Ａ，８７Ｂから離間して配置されている。把持面部８６Ａの内壁面８７Ａと筒状部８９の外周面との間にはこれらを連結する連結壁８４Ｃが設けられ、把持面部８６Ｂの内壁面８７Ｂと筒状部８９の外周面との間にはこれらを連結する連結壁８４Ｄが設けられている。天面部８５の裏面からの連結壁８４Ｃ，８４Ｃの高さは、筒状部８８，８９の高さよりも小さく、一対の把持面部８６Ａ，８６Ｂの高さよりも小さくなっている。つまり、連結壁８４Ｃ，８４Ｄにおける基部８１側の端部は、筒状部８８，８９における基部８１側の端部よりも天面部８５側であり、一対の把持面部８６Ａ，８６Ｂにおける基部８１側の端部よりも天面部８５側でとなっている。このような構成であるため、一対の把持面部８６Ａ，８６Ｂにおける基部８１側の端部付近の各内壁面８７Ａ，８７Ｂと筒状部８９の外周面との間には、隙間が構成されている。 The tubular portion 89 is arranged on the connecting wall portion 86D side of the center of the knob portion 82 in the longitudinal direction of the knob portion 82, and the outer peripheral surface of the tubular portion 89 is inside the pair of connecting wall portions 86C and 86D. The wall surface and the pair of gripping surface portions 86A and 86B are arranged apart from the inner wall surfaces 87A and 87B. A connecting wall 84C connecting these is provided between the inner wall surface 87A of the gripping surface portion 86A and the outer peripheral surface of the tubular portion 89, and between the inner wall surface 87B of the gripping surface portion 86B and the outer peripheral surface of the tubular portion 89. Is provided with a connecting wall 84D connecting these. The heights of the connecting walls 84C and 84C from the back surface of the top surface portion 85 are smaller than the heights of the tubular portions 88 and 89, and smaller than the heights of the pair of gripping surface portions 86A and 86B. That is, the end portion on the base 81 side of the connecting walls 84C and 84D is closer to the top surface portion 85 than the end portion on the base portion 81 side of the tubular portions 88 and 89, and is on the base 81 side of the pair of gripping surface portions 86A and 86B. It is on the top 85 side of the end. Due to such a configuration, a gap is formed between each inner wall surface 87A, 87B near the end portion on the base 81 side of the pair of gripping surface portions 86A, 86B and the outer peripheral surface of the tubular portion 89. ..

つまみ部８２は、長手方向中央部における一対の把持面部８６Ａ，８６Ｂの幅が、長手方向両端部における一対の把持面部８６Ａ，８６Ｂの幅よりも小さくなる括れ形状である。具体的には、つまみ部８２の長手方向一端部側から長手方向中央部側に近づくにつれて一対の把持面部８６Ａ，８６Ｂの幅が次第に小さくなる形状となっており、つまみ部８２の長手方向他端側から長手方向中央部側に近づくにつれて一対の把持面部８６Ａ，８６Ｂの幅が次第に小さくなる形状となっている。つまみ部８２の長手方向中央部付近には、天面部８５の裏面側から基部８１側に向かって突出する規制突起８４Ｅが形成されている。規制突起８４Ｅは、挿入孔８１Ａに挿入される操作軸１７Ａの先端と対向する突起であり、操作軸１７Ａの挿入孔８１Ａへの挿入長さが一定長さとなったときに操作軸１７Ａの先端と当接し、それ以上の挿入を規制する。 The knob portion 82 has a constricted shape in which the width of the pair of gripping surface portions 86A and 86B at the central portion in the longitudinal direction is smaller than the width of the pair of gripping surface portions 86A and 86B at both ends in the longitudinal direction. Specifically, the width of the pair of gripping surface portions 86A and 86B gradually decreases as the knob portion 82 approaches the central portion side in the longitudinal direction from the one end side in the longitudinal direction, and the other end in the longitudinal direction of the knob portion 82. The width of the pair of gripping surface portions 86A and 86B gradually decreases as the side approaches the central portion in the longitudinal direction. A regulation protrusion 84E is formed in the vicinity of the central portion in the longitudinal direction of the knob portion 82 so as to project from the back surface side of the top surface portion 85 toward the base portion 81 side. The regulation protrusion 84E is a protrusion facing the tip of the operation shaft 17A inserted into the insertion hole 81A, and when the insertion length of the operation shaft 17A into the insertion hole 81A becomes a constant length, the regulation protrusion 84E and the tip of the operation shaft 17A. Contact and restrict further insertion.

図９（Ｂ）、図１０（Ｂ）、図１１（Ｂ）、図１２（Ｂ）、図１３（Ｂ）のように、基部８１は、板状部７１と、盛り上がり部７０と、突出部７２と備える。基部８１は、突出部７２の基端側において板状部７１がフランジ状に張り出しており、板状部７１の第１板面７１Ａ側において盛り上がり部７０が盛り上がった突出構成をなしている。突出部７２は、中心に挿入孔８１Ａが形成された筒状（中空状）の構成をなす。挿入孔８１Ａは、平面視矩形状の孔として構成され、上述の基準方向において基部８１を貫通して形成されている。 As shown in FIGS. 9 (B), 10 (B), 11 (B), 12 (B), and 13 (B), the base 81 has a plate-shaped portion 71, a raised portion 70, and a protruding portion. Prepare with 72. The base portion 81 has a protruding portion in which the plate-shaped portion 71 projects like a flange on the base end side of the protruding portion 72, and the raised portion 70 is raised on the first plate surface 71A side of the plate-shaped portion 71. The protruding portion 72 has a cylindrical (hollow shape) structure in which an insertion hole 81A is formed in the center. The insertion hole 81A is configured as a rectangular hole in a plan view, and is formed so as to penetrate the base 81 in the above-mentioned reference direction.

板状部７１は、円板状に構成され、板厚方向一方側の第１板面７１Ａが露出した構成をなし、板厚方向他方側の第２板面７１Ｂが収容空間９９（図４）側に配置される部位である。盛り上がり部７０は、板状部７１と一体的に構成されるとともに第１板面７１Ａから盛り上がった構成をなし、天面部８５と対向しつつ天面部８５の長手方向に沿って長手状に配置される部位である。突出部７２は、板状部７１と一体的に構成され、第２板面７１Ｂ側から突出した構成をなす部位である。挿入孔８１Ａは、突出部７２と盛り上がり部７０とに跨って形成されている。 The plate-shaped portion 71 is formed in a disk shape, and the first plate surface 71A on one side in the plate thickness direction is exposed, and the second plate surface 71B on the other side in the plate thickness direction is the accommodation space 99 (FIG. 4). It is a part placed on the side. The raised portion 70 is integrally formed with the plate-shaped portion 71 and has a raised structure from the first plate surface 71A, and is arranged longitudinally along the longitudinal direction of the top surface portion 85 while facing the top surface portion 85. It is a part of the face. The protruding portion 72 is a portion that is integrally formed with the plate-shaped portion 71 and has a structure that protrudes from the second plate surface 71B side. The insertion hole 81A is formed so as to straddle the protruding portion 72 and the raised portion 70.

図９（Ｂ）、図１０（Ｂ）、図１１（Ｂ）、図１２（Ｂ）のように、盛り上がり部７０は、板状部７１の第１板面７１Ａから湾曲しつつ立ち上がるように一対の立ち上がり部７０Ａ，７０Ｂが形成され、一対の立ち上がり部７０Ａ，７０Ｂのそれぞれの端部に当接面部９０が設けられている。当接面部９０は、外周壁部８６の端部８６Ｅ（開口部）が当接する部位である。なお、図１０（Ｂ）では、つまみ部８２が組み付けられたときに外周壁部８６の端部８６Ｅが配置される位置を二点鎖線で概念的に示している。 As shown in FIGS. 9 (B), 10 (B), 11 (B), and 12 (B), the raised portions 70 are paired so as to rise from the first plate surface 71A of the plate-shaped portion 71 while being curved. The rising portions 70A and 70B are formed, and contact surface portions 90 are provided at the respective ends of the pair of rising portions 70A and 70B. The contact surface portion 90 is a portion where the end portion 86E (opening) of the outer peripheral wall portion 86 abuts. In FIG. 10B, the position where the end portion 86E of the outer peripheral wall portion 86 is arranged when the knob portion 82 is assembled is conceptually shown by a two-dot chain line.

嵌合凸部９２，９３，９４，９５は、当接面部９０から突出する部位である。本構成では、操作軸１７Ａの方向（上述の基準方向）と直交する平面方向において当接面部９０の外縁よりも内側の領域に嵌合凸部９２，９３，９４，９５が設けられており、図１１（Ｂ）、図１２（Ｂ）のように、これら嵌合凸部９２，９３，９４，９５は、当接面部９０の表面よりも突出している。なお、図１２（Ｂ）では、つまみ部８２が組み付けられたときに外周壁部８６の端部８６Ｅ付近が配置される位置を二点鎖線にて概念的に示している。つまみ部８２が基部８１に組み付けられた状態では、嵌合凸部９２，９３，９４，９５がつまみ部８２における外周壁部８６と筒状部８８，８９との間の領域に嵌り込むようになっている。図１３（Ａ）の例では、外周壁部８６の内壁面よりも内側の領域であって且つ筒状部８８，８９の外側の領域が「つまみ部８２における外周壁部８６と筒状部８８，８９との間の領域」の一例に相当し、この領域に嵌合凸部９２，９３，９４，９５が嵌り込むようになっている。 The fitting convex portions 92, 93, 94, 95 are portions protruding from the contact surface portion 90. In this configuration, fitting protrusions 92, 93, 94, 95 are provided in a region inside the outer edge of the contact surface portion 90 in a plane direction orthogonal to the direction of the operation shaft 17A (reference direction described above). As shown in FIGS. 11B and 12B, these fitting protrusions 92, 93, 94, 95 project from the surface of the contact surface portion 90. In addition, in FIG. 12B, the position where the vicinity of the end portion 86E of the outer peripheral wall portion 86 is arranged when the knob portion 82 is assembled is conceptually shown by a two-dot chain line. In the state where the knob portion 82 is assembled to the base portion 81, the fitting convex portions 92, 93, 94, 95 are fitted into the region of the knob portion 82 between the outer peripheral wall portion 86 and the tubular portion 88, 89. It has become. In the example of FIG. 13A, the region inside the inner wall surface of the outer peripheral wall portion 86 and the region outside the tubular portions 88 and 89 are “the outer peripheral wall portion 86 and the tubular portion 88 in the knob portion 82”. Corresponds to an example of "the region between the and 89", and the fitting protrusions 92, 93, 94 and 95 are fitted into this region.

凹状部９７，９８は、上記平面方向において当接面部９０の内側の領域で凹状に形成され、筒状部８８，８９の先端部が嵌り込む構成をなす。凹状部９７，９８の底部９７Ａ，９８Ａには、連結部材８３が挿入される孔部９７Ｂ，９８Ｂが形成されている。 The concave portions 97 and 98 are formed in a concave shape in the inner region of the contact surface portion 90 in the plane direction, and the tip portions of the tubular portions 88 and 89 are fitted into the concave portions 97 and 98. Holes 97B and 98B into which the connecting member 83 is inserted are formed in the bottoms 97A and 98A of the concave portions 97 and 98.

図７のように、基部８１は、上記平面方向において当接面部９０の内側の領域で挿入孔８１Ａが形成されている。更に、凹状部９７，９８の底部９７Ａ，９８Ａと筒状部８８，８９とが連結部材８３によって連結される構成をなしている。 As shown in FIG. 7, in the base portion 81, an insertion hole 81A is formed in a region inside the contact surface portion 90 in the plane direction. Further, the bottom portions 97A, 98A of the concave portions 97, 98 and the tubular portions 88, 89 are connected by the connecting member 83.

図８、図９のように、嵌合凸部９２，９３，９４，９５は、基部８１につまみ部８２が固定された固定状態において、一対の把持面部８６Ａ，８６Ｂのそれぞれの内壁面８７Ａ，８７Ｂと対向し且つそれぞれの内壁面８７Ａ，８７Ｂに沿って配置される一対の対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂを含んでいる。図１０（Ｂ）のように、基部８１につまみ部８２が固定された固定状態では、二点鎖線で示される端部８６Ｅの内縁よりも内側の領域であって且つ筒状部８８，８９の外側の領域に嵌合凸部９２，９３，９４，９５が配置される。そして、対向壁部９２Ａ，９２Ｂは、つまみ部８２の長手方向における筒状部８８の中心よりも連結壁部８６Ｃ側において、一対の把持面部８６Ａ，８６Ｂのそれぞれに沿うように配置されている。対向壁部９３Ａ，９３Ｂは、対向壁部９２Ａ，９２Ｂから間隔をあけて配置され、つまみ部８２の長手方向において筒状部８８の中心より挿入孔８１Ａ側且つ挿入孔８１Ａの中心よりも筒状部８８側において、一対の把持面部８６Ａ，８６Ｂのそれぞれに沿うように配置されている。対向壁部９５Ａ，９５Ｂは、つまみ部８２の長手方向における筒状部８９の中心よりも連結壁部８６Ｄ側において、一対の把持面部８６Ａ，８６Ｂのそれぞれに沿うように配置されている。対向壁部９４Ａ，９４Ｂは、対向壁部９３Ａ，９３Ｂから間隔をあけて配置され且つ対向壁部９５Ａ，９５Ｂから間隔をあけて配置され、つまみ部８２の長手方向において筒状部８９の中心より挿入孔８１Ａ側且つ挿入孔８１Ａの中心よりも筒状部８９側において、一対の把持面部８６Ａ，８６Ｂのそれぞれに沿うように配置されている。そして、対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂの一部が筒状部８８，８９と把持面部８６Ａ，８６Ｂとの間に配置される構成をなす。具体的には、対向壁部９２Ａ，９２Ｂ及び対向壁部９３Ａ，９３Ｂ，のそれぞれの一部が筒状部８８と把持面部８６Ａ，８６Ｂとの間に配置され。そして、対向壁部９４Ａ，９４Ｂ及び対向壁部９５Ａ，９５Ｂ，のそれぞれの一部が筒状部８９と把持面部８６Ａ，８６Ｂとの間に配置される。 As shown in FIGS. 8 and 9, the fitting convex portions 92, 93, 94, 95 have the inner wall surfaces 87A of the pair of gripping surface portions 86A and 86B in a fixed state in which the knob portion 82 is fixed to the base portion 81. It includes a pair of facing wall portions 92A, 92B, 93A, 93B, 94A, 94B, 95A, 95B facing 87B and arranged along the respective inner wall surfaces 87A, 87B. As shown in FIG. 10B, in the fixed state in which the knob portion 82 is fixed to the base portion 81, the region is inside the inner edge of the end portion 86E indicated by the alternate long and short dash line, and the tubular portions 88 and 89. Fitting protrusions 92, 93, 94, 95 are arranged in the outer region. The facing wall portions 92A and 92B are arranged along the pair of gripping surface portions 86A and 86B on the connecting wall portion 86C side of the center of the tubular portion 88 in the longitudinal direction of the knob portion 82. The facing wall portions 93A and 93B are arranged at intervals from the facing wall portions 92A and 92B, and are cylindrical from the center of the tubular portion 88 to the insertion hole 81A side and from the center of the insertion hole 81A in the longitudinal direction of the knob portion 82. On the side of the portion 88, it is arranged along each of the pair of gripping surface portions 86A and 86B. The facing wall portions 95A and 95B are arranged along the pair of gripping surface portions 86A and 86B on the connecting wall portion 86D side of the center of the tubular portion 89 in the longitudinal direction of the knob portion 82. The facing wall portions 94A and 94B are arranged at intervals from the facing wall portions 93A and 93B and at intervals from the facing wall portions 95A and 95B, and are arranged from the center of the tubular portion 89 in the longitudinal direction of the knob portion 82. It is arranged along the pair of gripping surface portions 86A and 86B on the insertion hole 81A side and on the tubular portion 89 side from the center of the insertion hole 81A. A part of the facing wall portions 92A, 92B, 93A, 93B, 94A, 94B, 95A, 95B is arranged between the tubular portions 88, 89 and the gripping surface portions 86A, 86B. Specifically, a part of each of the facing wall portions 92A and 92B and the facing wall portions 93A and 93B is arranged between the tubular portion 88 and the gripping surface portions 86A and 86B. Then, a part of each of the facing wall portions 94A and 94B and the facing wall portions 95A and 95B are arranged between the tubular portion 89 and the gripping surface portions 86A and 86B.

図６、図７のように基部８１につまみ部８２が固定された固定状態では、図６（Ｂ）のように、当接面部９０に当接する一対の把持面部８６Ａ，８６Ｂの各表面と、一対の立ち上がり部７０Ｂ，７０Ａの各表面とが、面一となるように連続している。具体的には、把持面部８６Ｂの表面と立ち上がり部７０Ａの表面とが段差の無い連続した面となるように表面形状が合わせられており、把持面部８６Ａの表面と立ち上がり部７０Ｂの表面とが段差の無い連続した面となるように表面形状が合わせられている。 In the fixed state in which the knob portion 82 is fixed to the base portion 81 as shown in FIGS. 6 and 7, the surfaces of the pair of gripping surface portions 86A and 86B abutting on the contact surface portion 90 and the surfaces of each of the pair of gripping surface portions 86A and 86B as shown in FIG. The surfaces of the pair of rising portions 70B and 70A are continuous so as to be flush with each other. Specifically, the surface shape is matched so that the surface of the gripping surface portion 86B and the surface of the rising portion 70A are continuous surfaces without a step, and the surface of the gripping surface portion 86A and the surface of the rising portion 70B have a step. The surface shape is adjusted so that it becomes a continuous surface with no surface.

図９、図１０のように、嵌合凸部９３は、筒状部８８の周囲において盛り上がり部７０の幅方向に延びる連結凸部９３Ｃを有している。そして、一対の対向壁部９３Ａ，９３Ｂは、連結凸部９３Ｃの両端にそれぞれ連結される一対の対向凸部として構成されている。そして、各々の対向凸部（対向壁部９３Ａ，９３Ｂ）は、盛り上がり部７０の長手方向において連結凸部９３Ｃの一方側及び他方側にそれぞれ延びた状態で、一対の把持面部８６Ａ，８６Ｂのそれぞれの内壁面８７Ａ，８７Ｂと対向し且つそれぞれの内壁面８７Ａ，８７Ｂに沿って配置される構成となっている。同様に、嵌合凸部９４は、筒状部８９の周囲において盛り上がり部７０の幅方向に延びる連結凸部９４Ｃを有している。そして、一対の対向壁部９４Ａ，９４Ｂは、連結凸部９４Ｃの両端にそれぞれ連結される一対の対向凸部として構成されている。そして、各々の対向凸部（対向壁部９４Ａ，９４Ｂ）は、盛り上がり部７０の長手方向において連結凸部９４Ｃの一方側及び他方側にそれぞれ延びた状態で、一対の把持面部８６Ａ，８６Ｂのそれぞれの内壁面８７Ａ，８７Ｂと対向し且つそれぞれの内壁面８７Ａ，８７Ｂに沿って配置される構成となっている。 As shown in FIGS. 9 and 10, the fitting convex portion 93 has a connecting convex portion 93C extending in the width direction of the raised portion 70 around the tubular portion 88. The pair of facing wall portions 93A and 93B are configured as a pair of facing convex portions connected to both ends of the connecting convex portion 93C. Each of the facing convex portions (opposing wall portions 93A and 93B) extends to one side and the other side of the connecting convex portion 93C in the longitudinal direction of the raised portion 70, respectively, of the pair of gripping surface portions 86A and 86B. It is configured to face the inner wall surfaces 87A and 87B of the above and to be arranged along the inner wall surfaces 87A and 87B, respectively. Similarly, the fitting convex portion 94 has a connecting convex portion 94C extending in the width direction of the raised portion 70 around the tubular portion 89. The pair of facing wall portions 94A and 94B are configured as a pair of facing convex portions connected to both ends of the connecting convex portion 94C. Each of the facing convex portions (opposing wall portions 94A and 94B) extends to one side and the other side of the connecting convex portion 94C in the longitudinal direction of the raised portion 70, respectively, of the pair of gripping surface portions 86A and 86B. It is configured to face the inner wall surfaces 87A and 87B of the above and to be arranged along the inner wall surfaces 87A and 87B, respectively.

次に、本構成の効果を例示する。
上述したビルトインコンロ１のように、操作軸１７Ａを回転操作し得る操作つまみ２１が、別体として構成されるつまみ部８２及び基部８１を備えていれば、つまみ部８２と基部８１とを別々に製造すべき要請に対応することができる。 Next, the effect of this configuration will be illustrated.
If the operation knob 21 capable of rotating the operation shaft 17A has a knob portion 82 and a base portion 81 configured as separate bodies as in the built-in stove 1 described above, the knob portion 82 and the base portion 81 are separately provided. It is possible to respond to the request to be manufactured.

更に、ビルトインコンロ１では、基部８１につまみ部８２が固定された固定状態において、基部８１に形成された嵌合凸部９２，９３，９４，９５がつまみ部８２に形成された外周壁部８６及び筒状部８８，８９の間の領域に嵌り込む構成をなし、この嵌合凸部９２，９３，９４，９５に形成された一対の対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂが、つまみ部８２の一対の把持面部８６Ａ，８６Ｂのそれぞれの内壁面８７Ａ，８７Ｂと対向し且つそれぞれの内壁面８７Ａ，８７Ｂに沿って配置される構成をなす。このような構成であるため、使用者のつまみ操作によってつまみ部８２の一対の把持面部８６Ａ，８６Ｂが内側に押されたとしても、一対の把持面部８６Ａ，８６Ｂの内側への変位を一対の対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂによって規制することができる。よって、つまみ部８２の撓みに起因する劣化や破損等を抑えることができ、簡易な構成でつまみ部８２の強度を効果的に高めることができる。しかも、嵌合凸部９２，９３，９４，９５を外周壁部８６の内側に嵌り込ませた形で強度が高められるため、つまみ部８２と基部８１の境界が目立つことを抑え、美観を保持し得る補強構造となる。 Further, in the built-in stove 1, in a fixed state in which the knob portion 82 is fixed to the base portion 81, the outer peripheral wall portion 86 in which the fitting convex portions 92, 93, 94, 95 formed on the base portion 81 are formed on the knob portion 82. And a pair of facing wall portions 92A, 92B, 93A, 93B, 94A, 94B formed in the fitting convex portions 92, 93, 94, 95, which are configured to fit into the region between the tubular portions 88 and 89. , 95A and 95B are arranged so as to face the inner wall surfaces 87A and 87B of the pair of gripping surface portions 86A and 86B of the knob portion 82 and to be arranged along the inner wall surfaces 87A and 87B, respectively. Due to such a configuration, even if the pair of gripping surfaces 86A and 86B of the knobs 82 are pushed inward by the user's knob operation, the pair of gripping surfaces 86A and 86B are displaced inward by a pair of facing each other. It can be regulated by the wall portions 92A, 92B, 93A, 93B, 94A, 94B, 95A, 95B. Therefore, deterioration and breakage caused by the bending of the knob portion 82 can be suppressed, and the strength of the knob portion 82 can be effectively increased with a simple configuration. Moreover, since the fitting convex portions 92, 93, 94, 95 are fitted inside the outer peripheral wall portion 86 to increase the strength, the boundary between the knob portion 82 and the base portion 81 is suppressed from being conspicuous, and the aesthetic appearance is maintained. It becomes a possible reinforcement structure.

また、操作つまみ２１では、基部８１につまみ部８２が固定された固定状態において、対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂの一部が筒状部８８，８９と把持面部８６Ａ，８６Ｂとの間に配置されている。このように、筒状部８８，８９と把持面部８６Ａ，８６Ｂとの間にまで対向壁部９２Ａ，９２Ｂ，９３Ａ，９３Ｂ，９４Ａ，９４Ｂ，９５Ａ，９５Ｂが入り込んでいれば、つまみ部８２の撓み（特に、一対の把持面部８６Ａ，８６Ｂの内側への撓み）をより一層抑えることができ、つまみ部８２の強度をより一層高めることができる。 Further, in the operation knob 21, in a fixed state in which the knob portion 82 is fixed to the base portion 81, a part of the facing wall portions 92A, 92B, 93A, 93B, 94A, 94B, 95A, 95B becomes the tubular portions 88, 89. It is arranged between the gripping surface portions 86A and 86B. In this way, if the facing wall portions 92A, 92B, 93A, 93B, 94A, 94B, 95A, 95B are inserted between the tubular portions 88, 89 and the gripping surface portions 86A, 86B, the knob portion 82 is bent. (In particular, the inward bending of the pair of gripping surface portions 86A and 86B) can be further suppressed, and the strength of the knob portion 82 can be further increased.

図９（Ａ）、図１０（Ａ）、図１３（Ａ）のように、つまみ部８２は、当該つまみ部８２の長手方向中央部における一対の把持面部８６Ａ，８６Ｂの幅が、長手方向両端部における一対の把持面部８６Ａ，８６Ｂの幅よりも小さくなる括れ形状となっている。このように構成されていれば、使用者が長手方向中央部を指でつまみやすくなり、操作つまみ２１の回転操作を行いやすくなる。但し、このように使用者が特定の位置をつまみやすい構成であると、使用者による押圧が集中しやすくなるため、把持面部８６Ａ，８６Ｂの撓み変形や劣化等がより一層懸念されるが、上述した構成によってつまみ部８２の強度が高められていれば、押圧集中に起因する破損や劣化を確実に抑えることができる。よって、使用者の使いやすさと、強度向上とを両立することができる。 As shown in FIGS. 9 (A), 10 (A), and 13 (A), the knob portion 82 has a pair of gripping surface portions 86A and 86B in the central portion in the longitudinal direction of the knob portion 82 having both ends in the longitudinal direction. It has a constricted shape that is smaller than the width of the pair of gripping surface portions 86A and 86B in the portion. With this configuration, it becomes easier for the user to pinch the central portion in the longitudinal direction with his / her fingers, and it becomes easier for the user to perform the rotation operation of the operation knob 21. However, if the configuration is such that the user can easily pinch a specific position, the pressing by the user is likely to be concentrated, so that there is further concern about bending deformation and deterioration of the gripping surface portions 86A and 86B. If the strength of the knob portion 82 is increased by the above-mentioned configuration, damage or deterioration due to pressure concentration can be reliably suppressed. Therefore, it is possible to achieve both ease of use for the user and improvement in strength.

図９（Ｂ）、図１０（Ｂ）、図１１（Ｂ）、図１２（Ｂ）のように、基部８１の盛り上がり部７０は、板状部７１の第１板面７１Ａから湾曲しつつ立ち上がるように一対の立ち上がり部７０Ａ，７０Ｂが形成されており、一対の立ち上がり部７０Ａ，７０Ｂのそれぞれの端部（盛り上がり部７０の突出側の端部）に当接面部９０が設けられている。そして、基部８１につまみ部８２が固定された固定状態において、一対の把持面部８６Ａ，８６Ｂの各表面（各々の露出側の板面）と、一対の立ち上がり部７０Ａ，７０Ｂの各表面とが、面一となるように連続している。このように構成されていれば、つまみ部８２と基部８１とが別体として構成されていても、つまみ部８２と基部８１の境界付近のデザインが一体感のあるデザインとなる。よって、つまみ部８２と基部８１とを別々に製造すべき要請に応えつつ、更に美観の向上を図ることができる。 As shown in FIGS. 9B, 10B, 11B, and 12B, the raised portion 70 of the base 81 rises from the first plate surface 71A of the plate-shaped portion 71 while being curved. As described above, a pair of rising portions 70A and 70B are formed, and a contact surface portion 90 is provided at each end of the pair of rising portions 70A and 70B (the end on the protruding side of the raised portion 70). Then, in the fixed state in which the knob portion 82 is fixed to the base portion 81, each surface of the pair of gripping surface portions 86A and 86B (the plate surface on each exposed side) and each surface of the pair of rising portions 70A and 70B are formed. It is continuous so that it is flush with each other. With this configuration, even if the knob portion 82 and the base portion 81 are configured as separate bodies, the design near the boundary between the knob portion 82 and the base portion 81 becomes a design with a sense of unity. Therefore, it is possible to further improve the aesthetic appearance while responding to the request that the knob portion 82 and the base portion 81 should be manufactured separately.

図９、図１０のように、嵌合凸部９３は、筒状部８８の周囲において盛り上がり部７０の幅方向に延びる連結凸部９３Ｃを有している。そして、一対の対向壁部９３Ａ，９３Ｂは、連結凸部９３Ｃの両端にそれぞれ連結される一対の対向凸部として構成されている。そして、各々の対向凸部（対向壁部９３Ａ，９３Ｂ）は、盛り上がり部７０の長手方向において連結凸部９３Ｃの一方側及び他方側にそれぞれ延びた状態で、一対の把持面部８６Ａ，８６Ｂのそれぞれの内壁面８７Ａ，８７Ｂと対向し且つそれぞれの内壁面８７Ａ，８７Ｂに沿って配置される構成となっている。このようにすれば、連結凸部９３Ｃの両側において盛り上がり部７０の長手方向に延びるように対向凸部（対向壁部９３Ａ，９３Ｂ）を長く配置することができ、より広い範囲にわたって把持面部８６Ａ，８６Ｂの内側への変形を規制可能となる。しかも、一対の対向凸部（対向壁部９３Ａ，９３Ｂ）の間に連結凸部９３Ｃが連結されるため、対向凸部（対向壁部９３Ａ，９３Ｂ）の内側への変形についても強固に規制することができる。よって、把持面部８６Ａ，８６Ｂが内側へ強く押されても、把持面部８６Ａ，８６Ｂの内側への変形をより確実に抑えることができる。なお、嵌合凸部９４も同様の構成を有するため、挿入孔８１Ａを挟んだ長手方向両側でこのような効果を生じさせることができる。 As shown in FIGS. 9 and 10, the fitting convex portion 93 has a connecting convex portion 93C extending in the width direction of the raised portion 70 around the tubular portion 88. The pair of facing wall portions 93A and 93B are configured as a pair of facing convex portions connected to both ends of the connecting convex portion 93C. Each of the facing convex portions (opposing wall portions 93A and 93B) extends to one side and the other side of the connecting convex portion 93C in the longitudinal direction of the raised portion 70, respectively, of the pair of gripping surface portions 86A and 86B. It is configured to face the inner wall surfaces 87A and 87B of the above and to be arranged along the inner wall surfaces 87A and 87B, respectively. By doing so, the facing convex portions (opposing wall portions 93A, 93B) can be arranged long on both sides of the connecting convex portion 93C so as to extend in the longitudinal direction of the raised portion 70, and the gripping surface portion 86A, The inward deformation of the 86B can be regulated. Moreover, since the connecting convex portion 93C is connected between the pair of facing convex portions (opposing wall portions 93A, 93B), the inward deformation of the facing convex portions (opposing wall portions 93A, 93B) is also strongly regulated. be able to. Therefore, even if the gripping surface portions 86A and 86B are strongly pushed inward, the inward deformation of the gripping surface portions 86A and 86B can be suppressed more reliably. Since the fitting convex portion 94 also has the same configuration, such an effect can be produced on both sides in the longitudinal direction sandwiching the insertion hole 81A.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような例も本発明の技術的範囲に含まれる。また、上述した実施例の特徴や後述する実施例の特徴は矛盾しない範囲で様々に組み合わせることが可能である。 <Other Examples>
The present invention is not limited to the examples described in the above description and drawings, and for example, the following examples are also included in the technical scope of the present invention. In addition, the characteristics of the above-mentioned examples and the characteristics of the examples described later can be combined in various ways within a consistent range.

上述した実施例では、ガスコンロの例としてビルトインコンロを例示したが、ビルトイン方式ではない他の方式（例えば、テーブルコンロ）に適用してもよい。 In the above-described embodiment, the built-in stove is illustrated as an example of the gas stove, but it may be applied to another method (for example, a table stove) other than the built-in method.

上述した実施例では、つまみ部８２の表面にメッキ処理が施され、基部８１の表面にメッキ処理が施されていない例を示したが、この例に限定されず、つまみ部８２の表面にメッキ処理が施されておらず、基部８１の表面にメッキ処理が施されていてもよい。或いは、基部８１の表面とつまみ部８２の表面とが異なる色によって構成されていてもよく、基部８１の表面とつまみ部８２の表面とが別々の材料によって構成されていてもよい。 In the above-described embodiment, an example is shown in which the surface of the knob portion 82 is plated and the surface of the base 81 is not plated, but the present invention is not limited to this example, and the surface of the knob portion 82 is plated. The surface of the base 81 may be plated without being treated. Alternatively, the surface of the base 81 and the surface of the knob 82 may be made of different colors, and the surface of the base 81 and the surface of the knob 82 may be made of different materials.

１…ビルトインコンロ（ガスコンロ）
２…トッププレート
５，６…ガスバーナ
１７，１８…燃料供給装置
１７Ａ，１８Ａ…操作軸
２１，２２…操作つまみ
３０…筐体部
７０…盛り上がり部
７０Ａ，７０Ｂ…立ち上がり部
７１…板状部
７２…突出部
８１…基部
８１Ａ…挿入孔
８２…つまみ部
８３…連結部材
８５…天面部
８６…外周壁部
８６Ａ，８６Ｂ…把持面部
８６Ｃ，８６Ｄ…連結壁部
８７Ａ，８７Ｂ…内壁面
８８，８９…筒状部
９０…当接面部
９２，９３，９４，９５…嵌合凸部
９２Ａ，９２Ｂ，９５Ａ，９５Ｂ…対向壁部
９３Ａ，９３Ｂ，９４Ａ，９４Ｂ…対向壁部（対向凸部）
９３Ｃ，９４Ｃ…連結凸部
９７，９８…凹状部
９７Ａ，９８Ａ…底部 1 ... Built-in stove (gas stove)
2 ... Top plate 5, 6 ... Gas burner 17, 18 ... Fuel supply device 17A, 18A ... Operation shaft 21, 22 ... Operation knob 30 ... Housing part 70 ... Swelling part 70A, 70B ... Rising part 71 ... Plate-shaped part 72 ... Projection 81 ... Base 81A ... Insertion hole 82 ... Knob 83 ... Connecting member 85 ... Top surface 86 ... Outer wall 86A, 86B ... Grip surface 86C, 86D ... Connecting wall 87A, 87B ... Inner wall surface 88, 89 ... Cylinder Shape 90 ... Contact surface portion 92, 93, 94, 95 ... Fitting convex portion 92A, 92B, 95A, 95B ... Facing wall portion 93A, 93B, 94A, 94B ... Facing wall portion (opposing convex portion)
93C, 94C ... Connecting convex part 97,98 ... Concave part 97A, 98A ... Bottom

Claims

With a gas burner,
A housing portion that has a structure in which the upper end side is open and accommodates the gas burner,
A top plate attached so as to close the upper end side of the housing portion, and
A fuel supply device having a rotatable operating shaft and housed in the housing,
An operation knob fixed to the tip of the operation shaft and at least partially arranged outside the accommodation space surrounded by the housing and the top plate.
Equipped with
The operation knob is
An insertion hole that fits with the operating shaft is formed, and a base that is fixed to the operating shaft and
A knob portion fixed to the base portion from the side opposite to the accommodation space side,
A connecting member that connects the base portion and the knob portion,
Have,
The knob is
A top surface portion that is vertically configured along a predetermined direction orthogonal to the direction of the operation axis and is arranged so as to face the base portion at a position away from the surface of the base portion.
A pair of gripping surface portions connected to both sides in the width direction of the top surface portion and arranged along the longitudinal direction of the top surface portion and extending from the top surface portion toward the base portion, and the longitudinal length of the top surface portion. An outer peripheral wall portion including a pair of connecting wall portions connected to both sides in the direction and connecting both sides in the longitudinal direction of the gripping surface portion, and an outer peripheral wall portion having an open side opposite to the top surface portion.
A cylindrical portion having a structure in which the connecting member is inserted into the outer peripheral wall portion so as to project from the back surface side of the top surface portion to the base portion side.
Equipped with
The base is
The contact surface portion with which the end portion of the outer peripheral wall portion abuts,
Fitting that protrudes from the contact surface portion in the inner region of the contact surface portion in a plane direction orthogonal to the direction of the operation axis and fits into the region between the outer peripheral wall portion and the tubular portion in the knob portion. With the convex part,
In the plane direction, the concave shape is formed in the inner region of the contact surface portion, the tip portion of the tubular portion is fitted into the concave shape, and the hole portion into which the connecting member is inserted is formed in the bottom portion thereof. Department and
Equipped with
The insertion hole is formed in the region inside the contact surface portion in the plane direction, and the insertion hole is formed.
The bottom portion of the concave portion and the tubular portion are connected by the connecting member, and the concave portion is connected.
The fitting convex portion is a pair of facing wall portions that face each inner wall surface of the pair of gripping surface portions and are arranged along the respective inner wall surfaces in a fixed state in which the knob portion is fixed to the base portion. Gas stove including.

The gas stove according to claim 1, wherein a part of the facing wall portion is arranged between the cylindrical portion and the gripping surface portion in a fixed state in which the knob portion is fixed to the base portion.

The gas stove according to claim 1 or 2, wherein the knob portion has a constricted shape in which the width of the pair of gripping surface portions at the central portion in the longitudinal direction is smaller than the width of the pair of gripping surface portions at both ends in the longitudinal direction. ..

The base is
A plate-shaped portion having a plate-like structure in which the first plate surface on one side in the plate thickness direction is exposed and the second plate surface on the other side in the plate thickness direction is arranged on the accommodation space side.
A raised portion that is integrally formed with the plate-shaped portion and is raised from the first plate surface, and is arranged in a longitudinal shape along the longitudinal direction of the top surface portion while facing the top surface portion.
A protruding portion that is integrally formed with the plate-shaped portion and protrudes from the second plate surface side.
Equipped with
The insertion hole is formed so as to straddle the protruding portion and the raised portion.
The raised part is
A pair of rising portions are formed so as to rise from the first plate surface of the plate-shaped portion while being curved.
The contact surface portion is provided at each end of the pair of rising portions.
In the fixed state in which the knob portion is fixed to the base portion, each surface of the pair of the gripping surface portions that abuts on the contact surface portion and each surface of the pair of the rising portions are continuous so as to be flush with each other. The gas stove according to any one of claims 1 to 3.

The fitting convex portion has a connecting convex portion extending in the width direction of the raised portion around the tubular portion.
The pair of facing wall portions has a pair of facing convex portions connected to both ends of the connecting convex portion.
Each of the facing convex portions is opposed to each inner wall surface of the pair of gripping surface portions and is each inner wall surface in a state of extending to one side and the other side of the connecting convex portion in the longitudinal direction of the raised portion. The gas stove according to claim 4, which is arranged along the line.