JP5580839B2 - Gas stove - Google Patents

Gas stove Download PDF

Info

Publication number
JP5580839B2
JP5580839B2 JP2012014007A JP2012014007A JP5580839B2 JP 5580839 B2 JP5580839 B2 JP 5580839B2 JP 2012014007 A JP2012014007 A JP 2012014007A JP 2012014007 A JP2012014007 A JP 2012014007A JP 5580839 B2 JP5580839 B2 JP 5580839B2
Authority
JP
Japan
Prior art keywords
spring
contact member
contact
detection switch
thermal head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2012014007A
Other languages
Japanese (ja)
Other versions
JP2013152062A (en
Inventor
優美子 立石
邦夫 片岡
岳士 深谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rinnai Corp
Original Assignee
Rinnai Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rinnai Corp filed Critical Rinnai Corp
Priority to JP2012014007A priority Critical patent/JP5580839B2/en
Publication of JP2013152062A publication Critical patent/JP2013152062A/en
Application granted granted Critical
Publication of JP5580839B2 publication Critical patent/JP5580839B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)

Description

本発明は、環状のコンロバーナで囲われるバーナ内方空間に挿通される上下方向に長手の支持パイプの上端部に上方に付勢して支持される、感熱素子を内蔵する感熱ヘッドを有する鍋底温度センサを備え、天板上の五徳に調理容器を載置したときに、感熱ヘッドが調理容器の底面に当接して押し下げられるようにしたガスコンロに関する。   The present invention relates to a pan bottom having a thermal head with a built-in thermal element supported by an upper end of a support pipe that is vertically long and inserted into a burner inner space surrounded by an annular stove burner. The present invention relates to a gas stove that includes a temperature sensor and is configured such that when a cooking container is placed on the virtues on a top plate, a thermal head is pressed against the bottom surface of the cooking container.

従来、この種のガスコンロとして、五徳に調理容器が載置されているか否かを検出するために、感熱ヘッドが押し下げられたときにオンする検出スイッチを備えるものが知られている（例えば、特許文献１、２参照）。   Conventionally, as this type of gas stove, there has been known one having a detection switch that is turned on when the thermal head is pushed down in order to detect whether or not the cooking container is placed on the virtues (for example, patents) References 1 and 2).

具体的に説明すると、特許文献１に記載のものでは、支持パイプの外部の定位置に検出スイッチたるマイクロスイッチを固定し、感熱ヘッドが押し下げられたときにその下端部に固定したドグがマイクロスイッチのレバーを押して、マイクロスイッチがオンされるようにしている。   Specifically, in the device described in Patent Document 1, a microswitch as a detection switch is fixed at a fixed position outside the support pipe, and when the thermal head is pushed down, the dog fixed to the lower end of the microswitch is a microswitch. The micro switch is turned on by pushing the lever.

また、特許文献２に記載のものでは、支持パイプの外部の定位置に検出スイッチたるリードスイッチとこれに対向する永久磁石とを固定すると共に、感熱ヘッドと一緒に上下動し、感熱ヘッドの上動位置でリードスイッチと永久磁石との間に挿入される磁性体を設けて、感熱ヘッドが押し下げられたとき、磁性体がリードスイッチと永久磁石との間から下方に離脱して、永久磁石の磁界がリードスイッチに伝わり、リードスイッチがオンするようにしている。   In addition, in the device described in Patent Document 2, a reed switch as a detection switch and a permanent magnet facing the detection switch are fixed at a fixed position outside the support pipe, and moved up and down together with the thermal head, When a magnetic body is inserted between the reed switch and the permanent magnet in the moving position and the thermal head is pushed down, the magnetic body is detached downward from between the reed switch and the permanent magnet, and the permanent magnet The magnetic field is transmitted to the reed switch so that the reed switch is turned on.

ここで、特許文献１に記載のものでは、調理容器からの煮こぼれを生じたとき、マイクロスイッチに煮こぼれ汁がかかると、マイクロスイッチが故障することがある。そのため、マイクロスイッチに煮こぼれ汁がかからないようにカバーを設けることが必要になり、構造が複雑になってコストが高くなる不具合がある。また、特許文献２に記載のものも、リードスイッチ、永久磁石及び磁性体が必要で、コストが高くなる不具合がある。   Here, in the thing of patent document 1, when spilled from a cooking container arises, if a simmering juice is applied to a microswitch, a microswitch may break down. For this reason, it is necessary to provide a cover so that the squeezed juice is not applied to the microswitch, and there is a problem that the structure is complicated and the cost is increased. Moreover, the thing of patent document 2 also has the malfunction which requires a reed switch, a permanent magnet, and a magnetic body, and becomes expensive.

特開平８−８６４４５号公報JP-A-8-86445 特開２０１０−２５４２０号公報JP 2010-25420 A

本発明は、以上の点に鑑み、煮こぼれ汁による検出スイッチの故障を生じない低コストのガスコンロを提供することをその課題としている。   This invention makes it the subject to provide the low-cost gas stove which does not produce the failure of the detection switch by boiled-up soup in view of the above point.

上記課題を解決するために、本発明は、環状のコンロバーナで囲われるバーナ内方空間に挿通される上下方向に長手の支持パイプの上端部に上方に付勢して支持される、感熱素子を内蔵する感熱ヘッドを有する鍋底温度センサを備え、天板上の五徳に調理容器を載置したときに、感熱ヘッドが調理容器の底面に当接して押し下げられるようにしたガスコンロであって、五徳に調理容器が載置されているか否かを検出するために、感熱ヘッドが押し下げられたときにオンする検出スイッチを備えるものにおいて、感熱ヘッドに、支持パイプに対し感熱ヘッドを上方に付勢するばねと、検出スイッチとが収納され、検出スイッチは、ばねを挟んで上下方向に対峙する第１と第２の接点部材を有し、ばねが所定量圧縮されたときに第１接点部材と第２接点部材とが接触して、検出スイッチがオンすることを特徴とする。   In order to solve the above-described problems, the present invention provides a thermal element that is supported by being urged upward by an upper end portion of a vertically long support pipe that is inserted into a burner inner space surrounded by a ring-shaped stove burner. A gas stove having a pan bottom temperature sensor with a built-in thermal head, and when the cooking container is placed on the virtues on the top plate, the thermal head abuts against the bottom of the cooking container and is pushed down. In order to detect whether or not the cooking container is placed on the thermosensitive head, the thermosensitive head is biased upward with respect to the support pipe. A spring and a detection switch are housed, and the detection switch has first and second contact members facing each other in the vertical direction across the spring, and the first contact member and the first switch when the spring is compressed by a predetermined amount. In contact with the contact member, the detection switch is characterized in that on.

本発明によれば、五徳に調理容器を載置する際、感熱ヘッドの押し下げでばねが所定量圧縮されたところで第１接点部材と第２接点部材とが接触して検出スイッチがオンし、五徳に調理容器が載置されたことを検出できる。そして、感熱ヘッドに検出スイッチが収納されるため、検出スイッチに煮こぼれ汁がかかることはなく、煮こぼれ汁による検出スイッチの故障を特別なカバーを設けずに防止できる。また、ばねを挟んで上下方向に対峙する第１と第２の接点部材を設けるだけで検出スイッチを構成できるため、構造が簡単でコストダウンを図ることができる。   According to the present invention, when placing the cooking container on the virtues, the first contact member and the second contact member come into contact with each other when the spring is compressed by a predetermined amount by pushing down the thermal head, and the detection switch is turned on. It is possible to detect that the cooking container has been placed on. And since a detection switch is accommodated in a thermal head, boiled juice is not applied to the detection switch, and failure of the detection switch due to boiled juice can be prevented without providing a special cover. Further, since the detection switch can be configured simply by providing the first and second contact members facing each other in the vertical direction across the spring, the structure is simple and the cost can be reduced.

また、本発明においては、感熱ヘッドに、これを上方に付勢するばねとしてばね定数の異なる上下２個のばねが収納され、これら２個のばねのうちばね定数の小さなものを第１ばね、ばね定数の大きなものを第２ばねとして、第１と第２の接点部材は、第１ばねを挟んで上下方向に対峙し、第１ばねが所定量圧縮されたときに第１接点部材と第２接点部材とが接触して検出スイッチがオンするように構成することが望ましい。   Further, in the present invention, the upper and lower two springs having different spring constants are housed in the thermal head as springs for urging the thermal head upward, and one of the two springs having the smaller spring constant is the first spring, The first spring and the second contact member are opposed to each other in the vertical direction across the first spring, and the first contact member and the first contact member are compressed when a predetermined amount is compressed. It is desirable that the detection switch is turned on when the two contact members come into contact with each other.

ここで、感熱ヘッドを単一のばねで上方に付勢する場合、調理容器の底面に感熱ヘッドを確実に当接させる上で、ばね定数の比較的大きなばねを用いることが必要になるが、これでは、軽量の調理容器を空の状態で五徳に載置する際、感熱ヘッドが押し下げられず、調理容器が五徳上で大きく傾くと共に、検出スイッチがオンしなくなってしまうことがある。一方、上記の如く第１と第２の上下２個のばねで感熱ヘッドを上方に付勢すれば、調理容器が軽量であっても、感熱ヘッドがばね定数の小さな第１ばねを圧縮しつつ押し下げられ、調理容器が五徳上で大きく傾くことを防止できる。そして、第１ばねの圧縮により第１接点部材と第２接点部材とが接触して、五徳に調理容器が載置されたことを確実に検出できる。尚、五徳に調理容器の底面が着座した状態では、第２ばねも圧縮されるようにすることで、調理容器の底面に感熱ヘッドを確実に当接させることができる。   Here, when the thermal head is urged upward with a single spring, it is necessary to use a spring having a relatively large spring constant in order to reliably bring the thermal head into contact with the bottom surface of the cooking container. In this case, when the lightweight cooking container is placed on the virtues in an empty state, the thermal head is not pushed down, the cooking container is largely inclined on the virtues, and the detection switch may not be turned on. On the other hand, if the thermal head is biased upward by the first and second upper and lower springs as described above, the thermal head compresses the first spring having a small spring constant even if the cooking container is light. It can be pushed down and the cooking container can be prevented from tilting greatly on the virtues. And it can detect reliably that the 1st contact member and the 2nd contact member contacted by compression of the 1st spring, and the cooking container was mounted in Gotoku. In the state where the bottom surface of the cooking container is seated on the five virtues, the thermal head can be reliably brought into contact with the bottom surface of the cooking container by compressing the second spring.

また、感熱ヘッドにこれを上方に付勢する単一のばねを収納する場合、第１接点部材と第２接点部材とが上下方向に対向する面で接触して検出スイッチがオンするように構成すると、ばねが所定量圧縮されて検出スイッチがオンしたところで感熱ヘッドをそれ以上押し下げられなくなる。そのため、底面が下方に丸く窪む中華鍋を五徳に載置する際、中華鍋の底面が五徳に着座する前に、感熱ヘッドが押し下げ不能となって、中華鍋を五徳に安定して載置できなくなる。この場合、第１接点部材と第２接点部材を互いに嵌合可能な形状に形成し、第１接点部材と第２接点部材とが接触して検出スイッチがオンした後も感熱ヘッドの押し下げが可能になるように構成すれば、中華鍋も五徳に安定して載置することができ有利である。   In addition, when a single spring that biases it upward is housed in the thermal head, the first contact member and the second contact member are in contact with each other in the vertical direction and the detection switch is turned on. Then, when the spring is compressed by a predetermined amount and the detection switch is turned on, the thermal head can no longer be pushed down. Therefore, when placing the wok with the bottom rounded downward on the virtues, the thermal head can not be pushed down before the bottom of the wok sits on the virtues, and the wok is stably placed on the virtues. become unable. In this case, the first contact member and the second contact member are formed so as to be fitted to each other, and the thermal head can be pushed down even after the first contact member and the second contact member come into contact with each other and the detection switch is turned on. If it is constituted so that the Chinese wok can be placed stably in the five virtues, it is advantageous.

また、感熱ヘッドにこれを上方に付勢する単一のばねを収納する場合、第１接点部材は、ばねの下端を受ける、支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、検出スイッチの一対のリード線に接続される一対の接点が互いに電気的に絶縁した状態で設けられ、第２接点部材は、感熱ヘッドの上端部に固定され、ばねが所定量圧縮されたときに、第１接点部材の本体に設けた両接点に第２接点部材が接触し、両接点が第２接点部材を介して電気的に接続されて検出スイッチがオンするように構成することが望ましい。また、感熱ヘッドに第１と第２の上下２個のばねを収納する場合は、第１ばねを第２ばねの下側に配置し、第１接点部材は、第１ばねの下端を受ける、支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、検出スイッチの一対のリード線に接続される一対の接点が互いに電気的に絶縁した状態で設けられ、第２接点部材は、第１ばねと第２ばねとの間に介設される中間ばね受けで構成され、第１ばねが所定量圧縮されたときに、第１接点部材の本体に設けた両接点に第２接点部材が接触し、両接点が第２接点部材を介して電気的に接続されて検出スイッチがオンするように構成し、或いは、第１ばねを、第２ばねの下側に配置される導電材料製の板ばねで構成して、検出スイッチの一方のリード線を板ばねの下側の端部に接続し、第１接点部材は、板ばねの下側の端部を受ける、支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、検出スイッチの他方のリード線に接続される接点が板ばねの下側の端部に対し電気的に絶縁した状態で設けられ、第２接点部材は、板ばねの上側の端部と第２ばねとの間に介設される中間ばね受けで構成され、板ばねが所定量圧縮されたときに、第２接点部材が板ばねの上側の端部を介して第１接点部材の本体に設けた接点に接触し、又は、板ばねの上側の端部に電気的に接続される第２接点部材の部分が第１接点部材の本体に設けた接点に接触して検出スイッチがオンするように構成することが望ましい。これによれば、感熱ヘッドの上下動で上下に動く第２接点部材に検出スイッチ用のリード線を配線する必要がなく、リード線の断線故障を防止する上で有利である。   Further, in the case where a single spring that biases it upward is housed in the thermal head, the first contact member has a main body that is configured to receive a lower end of the spring and is a spring receiver fixed to the support pipe, The main body is provided with a pair of contacts connected to the pair of lead wires of the detection switch in a state of being electrically insulated from each other. The second contact member is fixed to the upper end of the thermal head, and the spring is compressed by a predetermined amount. When this is done, the second contact member comes into contact with both contacts provided on the main body of the first contact member, and both the contacts are electrically connected via the second contact member to turn on the detection switch. It is desirable. When the first and second upper and lower two springs are housed in the thermal head, the first spring is disposed below the second spring, and the first contact member receives the lower end of the first spring. A main body configured by a spring receiver fixed to the support pipe, and a pair of contacts connected to the pair of lead wires of the detection switch are provided on the main body in a state of being electrically insulated from each other; The member is composed of an intermediate spring receiver interposed between the first spring and the second spring. When the first spring is compressed by a predetermined amount, the first contact member is provided with both contact points provided on the main body of the first contact member. The two contact members are in contact with each other, and both the contacts are electrically connected via the second contact member so that the detection switch is turned on, or the first spring is disposed below the second spring. It consists of a leaf spring made of a conductive material, and one lead wire of the detection switch is connected to the lower end of the leaf spring. Subsequently, the first contact member has a main body constituted by a spring receiver fixed to the support pipe, which receives the lower end of the leaf spring, and is connected to the other lead wire of the detection switch. And the second contact member is provided between the upper end of the leaf spring and the second spring in a state of being electrically insulated from the lower end of the leaf spring. When the leaf spring is compressed by a predetermined amount, the second contact member comes into contact with the contact provided on the main body of the first contact member via the upper end of the leaf spring, or the leaf spring. It is desirable that the portion of the second contact member that is electrically connected to the upper end of the first contact member contacts the contact provided on the main body of the first contact member to turn on the detection switch. According to this, it is not necessary to wire a lead wire for the detection switch to the second contact member that moves up and down by the vertical movement of the thermal head, which is advantageous in preventing a disconnection failure of the lead wire.

本発明の実施形態のガスコンロを示す断面図。Sectional drawing which shows the gas stove of embodiment of this invention. （ａ）図１のコンロに設けられる鍋底温度センサの第１実施形態の断面図、（ｂ）感熱ヘッドを押し下げた状態の第１実施形態の断面図。(A) Sectional drawing of 1st Embodiment of the pan bottom temperature sensor provided in the stove of FIG. 1, (b) Sectional drawing of 1st Embodiment of the state which pushed down the thermal head. （ａ）図１のコンロに設けられる鍋底温度センサの第２実施形態の断面図、（ｂ）感熱ヘッドを押し下げた状態の第２実施形態の断面図。(A) Sectional drawing of 2nd Embodiment of the pan bottom temperature sensor provided in the stove of FIG. 1, (b) Sectional drawing of 2nd Embodiment of the state which pushed down the thermal head. （ａ）図１のコンロに設けられる鍋底温度センサの第３実施形態の断面図、（ｂ）感熱ヘッドを押し下げた状態の第３実施形態の断面図。(A) Sectional drawing of 3rd Embodiment of the pan bottom temperature sensor provided in the stove of FIG. 1, (b) Sectional drawing of 3rd Embodiment of the state which pushed down the thermal head.

図１を参照して、１は、図示省略したコンロ本体の上面を覆う天板を示している。天板１には、バーナ用開口１ａが開設されており、コンロ本体に、バーナ用開口１ａに臨むようにコンロバーナ２を設置している。天板１上には、環状の五徳枠３１に放射状に複数の五徳爪３２を取り付けて成る五徳３がコンロバーナ２を囲うようにして設置されており、五徳３に載置する鍋等の調理容器がコンロバー２で加熱される。   Referring to FIG. 1, reference numeral 1 denotes a top plate that covers the upper surface of a stove body (not shown). The top plate 1 is provided with a burner opening 1a, and the stove burner 2 is installed in the stove body so as to face the burner opening 1a. On the top plate 1, a virtu 3, which is formed by attaching a plurality of virgin claws 32 to a ring-shaped virtuosity frame 31 so as to surround the stove burner 2, cooks a pot or the like placed on the virtues 3. The container is heated with a stove 2.

コンロバーナ２は、混合管２１に連なる環状のバーナボディ２２と、バーナボディ２２上に載置され、バーナボディ２２との間に炎口２３ａを画成する環状のバーナキャップ２３と、バーナキャップ２３上に載置され、バーナキャップ２３との間に二次空気通路を画成する環状の二次空気ガイド板２４とを備える公知の環状バーナで構成されている。また、コンロバーナ２の外周には、点火電極２５と火炎検知のための熱電対２６とが付設されている。更に、コンロバーナ２で囲われるバーナ内方空間を通してコンロバーナ２の上方に突出する鍋底温度センサ４が設置されている。   The stove burner 2 has an annular burner body 22 connected to the mixing tube 21, an annular burner cap 23 that is placed on the burner body 22 and defines a flame opening 23 a between the burner body 22, and the burner cap 23. It is comprised by the well-known annular burner provided with the cyclic | annular secondary air guide plate 24 mounted on the top and defining a secondary air path between the burner caps 23. An ignition electrode 25 and a thermocouple 26 for detecting a flame are attached to the outer periphery of the stove burner 2. Further, a pan bottom temperature sensor 4 is provided that protrudes above the burner 2 through a burner inner space surrounded by the burner 2.

鍋底温度センサ４は、バーナ内方空間に挿通される上下方向に長手の支持パイプ４１と、支持パイプ４１の上端部に支持される感熱ヘッド４２とを備えている。支持パイプ４１は、図示省略した固定具でコンロバーナ２に対し固定される。感熱ヘッド４２は、図２に示す如く、調理容器の底面に当接する集熱板４２ａと、集熱板４２ａで上端が閉塞される内筒４２ｂと、内筒４２ｂを囲う遮熱用の外筒４２ｃとを備え、集熱板４２ａの下面に、集熱板４２ａを介して調理容器の温度を検出するサーミスタ等の感熱素子４３が取り付けられている。   The pan bottom temperature sensor 4 includes a support pipe 41 that is vertically inserted in the burner inner space, and a thermal head 42 that is supported by the upper end of the support pipe 41. The support pipe 41 is fixed to the stove burner 2 with a fixture (not shown). As shown in FIG. 2, the thermal head 42 includes a heat collecting plate 42a that contacts the bottom surface of the cooking container, an inner cylinder 42b whose upper end is closed by the heat collecting plate 42a, and an outer cylinder for heat insulation that surrounds the inner cylinder 42b. 42c, and a heat sensitive element 43 such as a thermistor for detecting the temperature of the cooking container is attached to the lower surface of the heat collecting plate 42a via the heat collecting plate 42a.

内筒４２ｂは、支持パイプ４１の上端に固定したばね受け４４ａに上下動自在に外挿されており、このばね受け４４ａと集熱板４２ａとの間に介設されるばね４４を感熱ヘッド４２に収納して、支持パイプ４１に対し感熱ヘッド４２をばね４４により上方に付勢している。また、内筒４２ｂの下端部には縮径した段差部４２ｄが形成されており、五徳３に調理容器を載せない自由状態では、感熱ヘッド４２がばね受け４４ａの下面への段差部４２ｄの当接で規制される上動端位置に保持される。この上動端位置では、感熱ヘッド４２が五徳３よりも上方に突出している。そして、五徳３に調理容器を載置したとき、感熱ヘッド４２が調理容器の底面に当接してばね４４の付勢力に抗して押し下げられ、集熱板４２ａがばね４４の圧縮反力で調理容器の底面に確実に当接するようにしている。   The inner cylinder 42b is externally inserted in a spring receiver 44a fixed to the upper end of the support pipe 41 so as to be movable up and down, and the spring 44 interposed between the spring receiver 44a and the heat collecting plate 42a is attached to the thermal head 42. The thermal head 42 is urged upward by a spring 44 with respect to the support pipe 41. Further, a stepped portion 42d having a reduced diameter is formed at the lower end portion of the inner cylinder 42b. In a free state where the cooking container is not placed on the Gotoku 3, the thermal head 42 contacts the lower surface of the spring receiver 44a with the stepped portion 42d. It is held at the upper moving end position regulated by contact. At the upper moving end position, the thermal head 42 protrudes above the virtues 3. When the cooking container is placed on Gotoku 3, the thermal head 42 comes into contact with the bottom surface of the cooking container and is pushed down against the urging force of the spring 44, and the heat collecting plate 42a is cooked by the compression reaction force of the spring 44. The bottom surface of the container is surely contacted.

感熱素子４３からのびるリード線４３ａは、支持パイプ４１に挿通され、その下端から外部に引き出されて制御手段たるコントローラ５に接続される（図１参照）。コントローラ５は、感熱素子４３で検出した調理容器の温度が所定の過熱温度に上昇したとき、コンロバーナ２の火力を弱めたり消火したりする制御を行う。尚、リード線４３ａには比較的剛性の高い被覆４３ｂが外挿されており、感熱ヘッド４２の上下動に追従してリード線４３ａが支持パイプ４１内で撓むことなく上下動する。   The lead wire 43a extending from the heat sensitive element 43 is inserted into the support pipe 41, pulled out from the lower end thereof, and connected to the controller 5 as control means (see FIG. 1). The controller 5 performs control to weaken or extinguish the heating power of the stove burner 2 when the temperature of the cooking container detected by the heat sensitive element 43 rises to a predetermined overheating temperature. Note that a relatively high-strength coating 43b is extrapolated to the lead wire 43a, and the lead wire 43a moves up and down without bending in the support pipe 41 following the vertical movement of the thermal head 42.

また、感熱ヘッド４２には、五徳３に調理容器が載置されているか否かを検出するために、感熱ヘッド４２が押し下げられたときにオンする検出スイッチ６が収納されている。そして、検出スイッチ６がオフであるときは、オンであるときとは異なるコンロバーナ２の制御、例えば、コンロバーナ２の点火を禁止する点火制限制御や、コンロバーナ２の燃焼中に検出スイッチ６がオフしたときに火力を弱めたり消火したりする燃焼制限制御をコントローラ５が行うようにしている。以下、検出スイッチ６について詳述する。   Further, the thermal head 42 houses a detection switch 6 that is turned on when the thermal head 42 is pushed down in order to detect whether or not the cooking container is placed on the Gotoku 3. When the detection switch 6 is off, the control switch 6 is different from that when the detection switch 6 is on, for example, ignition limit control for prohibiting ignition of the control burner 2, or the detection switch 6 during combustion of the control burner 2. The controller 5 performs a combustion restriction control that weakens or extinguishes the thermal power when the engine is turned off. Hereinafter, the detection switch 6 will be described in detail.

検出スイッチ６は、ばね４４を挟んで上下方向に対峙する第１接点部材６１と第２接点部材６２とを有している。本実施形態では、第１接点部材６１を、ばね４４の下端を受ける、支持パイプ４１に対し固定のセラミックス等の絶縁材料製の上記ばね受け４４ａで構成される本体を有するものとし、第２接点部材６２を、感熱ヘッド４２の上端部、即ち、集熱板４２ａに固定した金属等の導電材料製の部材で構成している。また、第１接点部材６１と第２接点部材６２とを互いに嵌合可能な形状に形成している。具体的には、第１接点部材６１の本体を上方にのびる筒状に形成し、第２接点部材６２を第１接点部材６１の本体の内周面に嵌合可能な下方にのびる筒状に形成している。   The detection switch 6 includes a first contact member 61 and a second contact member 62 that face each other in the vertical direction with the spring 44 interposed therebetween. In the present embodiment, the first contact member 61 has a main body configured by the spring receiver 44 a made of an insulating material such as ceramics that is fixed to the support pipe 41 and receives the lower end of the spring 44. The member 62 is composed of a member made of a conductive material such as metal fixed to the upper end portion of the thermal head 42, that is, the heat collecting plate 42a. Moreover, the 1st contact member 61 and the 2nd contact member 62 are formed in the shape which can be mutually fitted. Specifically, the main body of the first contact member 61 is formed in a cylindrical shape extending upward, and the second contact member 62 is formed in a cylindrical shape extending downward that can be fitted to the inner peripheral surface of the main body of the first contact member 61. Forming.

第１接点部材６１の本体の第２接点部材６２が嵌合する周面、即ち、内周面には、検出スイッチ６用の一対のリード線６ａ，６ｂに接続される一対の接点６３，６４が互いに電気的に絶縁された状態で設けられている。リード線６ａ，６ｂは、支持パイプ４１に挿通され、その下端から外部に引き出されてコントローラ５に接続される（図１参照）。   A pair of contacts 63, 64 connected to a pair of lead wires 6a, 6b for the detection switch 6 are provided on the peripheral surface, that is, the inner peripheral surface, of the main body of the first contact member 61 with which the second contact member 62 is fitted. Are provided in a state of being electrically insulated from each other. The lead wires 6a and 6b are inserted into the support pipe 41, drawn out from the lower ends thereof, and connected to the controller 5 (see FIG. 1).

これによれば、五徳３に調理容器を載置する際、感熱ヘッド４２の押し下げでばね４４が所定量圧縮されたとき、図２（ｂ）に示す如く、第２接点部材６２が第１接点部材６１に接触（嵌合）して検出スイッチ６がオンする。具体的には、第１接点部材６１の本体に設けた接点６３と接点６４に第２接点部材６２が接触し、両接点６３，６４が第２接点部材６２を介して電気的に接続されて検出スイッチ６がオンする。上記所定量は、調理容器の底面が五徳３に着座するまで感熱ヘッド４２が押し下げられたときのばね４４の圧縮量と同等か若干小さく設定されており、検出スイッチ６がオンしたか否かで五徳３に調理容器が載置されたか否かを検出できる。そして、感熱ヘッド４２に検出スイッチ６が収納されるため、検出スイッチ６に煮こぼれ汁がかかることはなく、煮こぼれ汁による検出スイッチ６の故障を特別のカバーを設けることなく防止できる。また、ばね４４を挟んで上下方向に対峙する第１と第２の接点部材６１，６２を設けるだけで検出スイッチ６を構成できるため、構造が簡単でコストダウンを図ることができる。   According to this, when placing the cooking container on Gotoku 3, when the spring 44 is compressed by a predetermined amount by pushing down the thermal head 42, as shown in FIG. 2B, the second contact member 62 becomes the first contact. The detection switch 6 is turned on upon contact (fitting) with the member 61. Specifically, the second contact member 62 contacts the contact 63 and the contact 64 provided on the main body of the first contact member 61, and both the contacts 63 and 64 are electrically connected via the second contact member 62. The detection switch 6 is turned on. The predetermined amount is set to be equal to or slightly smaller than the compression amount of the spring 44 when the thermal head 42 is pushed down until the bottom surface of the cooking container is seated on the Gotoku 3, and whether or not the detection switch 6 is turned on. It is possible to detect whether or not the cooking container is placed on Gotoku 3. Since the detection switch 6 is housed in the thermal head 42, the detection switch 6 is not covered with simmered juice, and failure of the detection switch 6 due to the simmered juice can be prevented without providing a special cover. In addition, since the detection switch 6 can be configured simply by providing the first and second contact members 61 and 62 facing each other in the vertical direction with the spring 44 interposed therebetween, the structure is simple and the cost can be reduced.

ところで、第１接点部材６１の上端面に一対の接点６３，６４を設け、ばね４４が所定量圧縮されたときに、第２接点部材６２の下端面が第１接点部材６１の上端面（両接点６３，６４）に接触して、両接点６３，６４が電気的に接続されるように検出スイッチ６を構成することも可能である。然し、この場合には、第２接点部材６２が第１接点部材６１に接触すると、感熱ヘッド４２をそれ以上押し下げられなくなる。そのため、底面が下方に丸く窪む中華鍋を五徳３に載置する際、中華鍋の底面が五徳に着座する前に、感熱ヘッド４２が押し下げ不能となって、中華鍋を五徳３に安定して載置できなくなる。一方、本実施形態では、第２接点部材６２が第１接点部材６１に嵌合するため、第２接点部材６２が第１接点部材６１に接触して検出スイッチ６がオンした後も感熱ヘッド４２を押し下げることができ、上記の不具合を生じない。   By the way, a pair of contacts 63, 64 are provided on the upper end surface of the first contact member 61, and when the spring 44 is compressed by a predetermined amount, the lower end surface of the second contact member 62 becomes the upper end surface of the first contact member 61 (both It is also possible to configure the detection switch 6 so that both the contacts 63 and 64 are electrically connected in contact with the contacts 63 and 64). However, in this case, when the second contact member 62 comes into contact with the first contact member 61, the thermal head 42 cannot be pushed down any further. Therefore, when placing the wok with the bottom rounded downward in Gotoku 3, the thermal head 42 cannot be pushed down before the bottom of the wok sits on Gotoku, and the wok is stabilized to Gotoku 3. Cannot be placed. On the other hand, in the present embodiment, since the second contact member 62 is fitted to the first contact member 61, the thermal head 42 even after the second contact member 62 contacts the first contact member 61 and the detection switch 6 is turned on. Can be pushed down, and the above-mentioned problems do not occur.

次に、図３に示す第２実施形態について説明する。第２実施形態では、感熱ヘッド４２に、これを上方に付勢するばねとしてばね定数が比較的小さな第１ばね４４１と、ばね定数が比較的大きな第２ばね４４２との上下２個のばねを収納し、検出スイッチ６を構成する第１と第２の接点部材６１，６２が第１ばね４４１を挟んで上下方向に対峙するようにしている。 Next, a second embodiment shown in FIG. 3 will be described. In the second embodiment, the thermal head 42, which the spring constant is relatively small first spring 44 1 as a spring for biasing upward, the spring constant of the upper and lower two of the relatively large second spring 44 2 housing the spring, first and second contact members 61 and 62 constituting the detection switch 6 is adapted to face the vertical direction across a first spring 44.

ここで、第１ばね４４１は、第２ばね４４２の下側に配置されている。そして、第１ばね４４１の下端を受ける、支持パイプ４１に対し固定の絶縁材料製のばね受け４４ａで第１接点部材６１の本体を構成し、第１ばね４４１とその上側の第２ばね４４２との間に介設する導電材料製の中間ばね受け４４ｂで第２接点部材６２を構成している。第１接点部材６１の本体上端面には、検出スイッチ６用の一対のリード線６ａ，６ｂに接続されるピン状の一対の接点６３，６４が電気的に絶縁した状態で設けられている。そして、第１ばね４４１が所定量圧縮されたとき、図３（ｂ）に示す如く、第２接点部材６２が第１接点部材６１の両接点６３，６４に接触し、両接点６３，６４が第２接点部材６２を介して電気的に接続されて検出スイッチ６がオンするようにしている。尚、接点６３，６４の周面には、第１ばね４４１との間の絶縁のため、絶縁被膜を形成しておくことが望ましい。 Here, the first spring 44 1 is disposed on the second lower side of the spring 44 2. The first spring 44 first undergoes a lower end, the body of the first contact member 61 constituted by a fixed insulating materials made of spring bearing 44a to support pipe 41, the first spring 44 1 and the second spring of the upper It constitutes a second contact member 62 with a conductive material made of the intermediate spring receiver 44b which interposed between the 44 2. A pair of pin-like contacts 63 and 64 connected to the pair of lead wires 6a and 6b for the detection switch 6 are provided on the upper end surface of the main body of the first contact member 61 in an electrically insulated state. When the 1 first spring 44 is compressed a predetermined amount, as shown in FIG. 3 (b), the second contact member 62 comes into contact with the contacts 63, 64 of the first contact member 61, the contacts 63, 64 Are electrically connected via the second contact member 62 so that the detection switch 6 is turned on. Note that the peripheral surface of the contact 63 and 64, since the insulation between the 1 first spring 44, it is desirable to form the insulating coating.

ところで、感熱ヘッド４２を上記第１実施形態の如く単一のばね４４で上方に付勢する場合、調理容器の底面に感熱ヘッド４２を確実に当接させる上で、ばね定数の比較的大きなばねを用いることが必要になる。然し、これでは、軽量の調理容器を空の状態で五徳３に載置する際、感熱ヘッド４２が押し下げられず、調理容器が五徳３上で大きく傾くと共に、検出スイッチ６がオンしなくなってしまうことがある。一方、第２実施形態の如くばね定数の小さな第１ばね４４１とばね定数の大きな第２ばね４４２で感熱ヘッド４２を上方に付勢すれば、調理容器が軽量であっても、感熱ヘッド４２がばね定数の小さな第１ばね４４１を圧縮しつつ押し下げられ、調理容器が五徳３上で大きく傾くことを防止できる。そして、第１ばね４４１の圧縮により第２接点部材６２が第１接点部材６１の両接点６３，６４に接触して検出スイッチ６がオンし、五徳３に調理容器が載置されたことを確実に検出できる。 By the way, when the thermal head 42 is urged upward by the single spring 44 as in the first embodiment, the spring having a relatively large spring constant is used to surely bring the thermal head 42 into contact with the bottom surface of the cooking container. Must be used. However, in this case, when the lightweight cooking container is placed on the Gotoku 3 in an empty state, the thermal head 42 is not pushed down, the cooking container is greatly inclined on the Gotoku 3, and the detection switch 6 is not turned on. Sometimes. On the other hand, if biasing the thermal head 42 with a large second spring 44 2 a small first spring 44 1 and the spring constant of the spring constant as in the second embodiment above, the cooking vessel be lightweight, thermal head 42 spring small first depressed while compressing the spring 44 of the constants, it is possible to prevent the cooking container is greatly inclined on the trivet 3. Then, that the second contact member 62 by the compression of the first spring 44 1 is detected switch 6 in contact with the contacts 63, 64 of the first contact member 61 is turned on, the cooking container trivet 3 is placed It can be detected reliably.

尚、第１ばね４４１の長さは、五徳３に調理容器の底面が着座する前に第１接点部材６１（接点６３，６４）と第２接点部材６２とが接触するように設定されており、この接触後に第２ばね４４２がある程度圧縮された状態で五徳３に調理容器の底面が着座するようにしている。そのため、軽量の調理容器を五徳３に載置した後、調理容器内に調理物を入れれば第２ばね４４２が圧縮され、その圧縮反力で調理容器の底面に感熱ヘッド４２を確実に当接させることができる。また、第２接点部材６２を第１接点部材６１に嵌合するように形成しなくても、第１接点部材６１と第２接点部材６２との接触後の感熱ヘッド４２の押し下げが許容されるため、中華鍋を五徳に支障なく載置できる。 Incidentally, the first length first spring 44 is set so that the first contact member 61 (the contact point 63, 64) and the second contact member 62 is in contact before the bottom surface of the cooking container trivet 3 is seated cage, the bottom surface of the cooking container is adapted to seat in a state that 2 second spring 44 is somewhat compressed after the contact with the trivet 3. Therefore, after placing the cooking vessel lightweight trivet 3, the second spring 44 2 is compressed If you put the food into the cooking vessel, the thermal head 42 securely to the bottom surface of the cooking container with its compression reaction force equivalent Can be touched. Further, even if the second contact member 62 is not formed so as to be fitted to the first contact member 61, the thermal head 42 is allowed to be pushed down after the first contact member 61 and the second contact member 62 come into contact with each other. Therefore, the Chinese wok can be placed on the five virtues without any trouble.

ところで、上記第１実施形態と第２実施形態では、第１接点部材６１の本体（ばね受け４４ａ）を絶縁材料製としているが、これを金属製とし、各接点６３，６４を絶縁材を介して第１接点部材６１の本体に固定してもよい。また、第２接点部材６２の表面に両接点６３，６４に跨って接触可能な導体を取り付ければ、第２接点部材６２を絶縁材料製とすることも可能である。   By the way, in the said 1st Embodiment and 2nd Embodiment, although the main body (spring receiver 44a) of the 1st contact member 61 is made from an insulating material, this is made into a metal and each contact 63 and 64 is passed through an insulating material. The first contact member 61 may be fixed to the main body. Moreover, if the conductor which can be straddled across both the contacts 63 and 64 is attached to the surface of the 2nd contact member 62, the 2nd contact member 62 can also be made from an insulating material.

また、上記第１実施形態や第２実施形態では、第１接点部材６１の本体に、検出スイッチ６用の一対のリード線６ａ，６ｂに接続される一対の接点６３，６４を設けているが、第１実施形態や第２実施形態の変形例として、第１接点部材６１の本体に検出スイッチ６用の一方のリード線６３ａに接続される接点６３のみを設け、第２接点部材６２に検出スイッチ６用の他方のリード線６ｂを接続し、或いは、第２接点部材６２を絶縁材料製の本体を有するものとして、第２接点部材６２の本体にリード線６ｂに接続される接点６４を設け、ばね４４や第１ばね４４１が所定量圧縮されたときに、第２接点部材６２或いは接点６４が接点６３に接触して検出スイッチ６がオンするように構成することも可能である。 In the first and second embodiments, the main body of the first contact member 61 is provided with a pair of contacts 63 and 64 connected to the pair of lead wires 6a and 6b for the detection switch 6. As a modification of the first embodiment or the second embodiment, only the contact 63 connected to the one lead wire 63a for the detection switch 6 is provided on the main body of the first contact member 61, and the second contact member 62 detects it. The other lead wire 6b for the switch 6 is connected, or the second contact member 62 has a main body made of an insulating material, and the contact 64 connected to the lead wire 6b is provided on the main body of the second contact member 62. when the spring 44 and the first spring 44 1 is compressed a predetermined amount, it is also possible in which the second contact member 62 or the contact 64 is configured to detect the switch 6 in contact with the contact 63 is turned on.

また、第１実施形態及び第２実施形態の変形例として、第１接点部材６１を導電材料製、第２接点部材６２を絶縁材料製の本体を有するものとし、第２接点部材６２の本体に検出スイッチ６用の一対のリード線６ａ，６ｂに接続される一対の接点６３，６４を設けることも可能である。更に、第１接点部材６１と第２接点部材６２の少なくとも一方とばね４４又は第１ばね４４１との間に絶縁材を介設すれば、第１と第２の両接点部材６１，６２を共に導電材料製とし、各接点部材６１，６２に各リード線６ａ，６ｂを接続して、両接点部材６１，６２の接触で検出スイッチ６がオンするように構成することも可能である。 As a modification of the first embodiment and the second embodiment, the first contact member 61 has a main body made of a conductive material and the second contact member 62 has a main body made of an insulating material. It is also possible to provide a pair of contacts 63, 64 connected to the pair of lead wires 6a, 6b for the detection switch 6. Furthermore, if interposed an insulating material between the first contact member 61 and at least one spring 44 or the first spring 44 1 of the second contact member 62, the first and second of the two contact members 61 and 62 It is also possible that both are made of a conductive material, each lead wire 6a, 6b is connected to each contact member 61, 62, and the detection switch 6 is turned on when the both contact members 61, 62 are contacted.

但し、第２接点部材６２は、感熱ヘッド４２の上下動で上下に動く可動部材であるため、リード線６ａ，６ｂの少なくとも一方を第２接点部材６２に配線することが必要になる上記変形例では、第２接点部材６２の上下動の繰り返しでリード線の断線を生ずる可能性がある。これに対し、第１実施形態及び第２実施形態では、検出スイッチ６用の一対のリード線６ａ，６ｂを可動部材たる第２接点部材６２に配線する必要がなく、リード線６ａ，６ｂの断線故障を防止する上で有利である。   However, since the second contact member 62 is a movable member that moves up and down by the vertical movement of the thermal head 42, it is necessary to wire at least one of the lead wires 6 a and 6 b to the second contact member 62. Then, there is a possibility that the lead wire is broken by repeating the up and down movement of the second contact member 62. On the other hand, in the first embodiment and the second embodiment, it is not necessary to wire the pair of lead wires 6a and 6b for the detection switch 6 to the second contact member 62 that is a movable member, and the lead wires 6a and 6b are disconnected. This is advantageous in preventing failure.

次に、図４に示す第３実施形態について説明する。第３実施形態は、上記第２実施形態と同様に、感熱ヘッド４２に、ばね定数が比較的小さな第１ばね４４１と、ばね定数が比較的大きな第２ばね４４２とを収納しているが、第１ばね４４１は、第２実施形態のようなコイルばねではなく、第２ばね４４２の下側に配置される導電材料製の板ばね６５で構成されている。 Next, a third embodiment shown in FIG. 4 will be described. The third embodiment, as in the second embodiment, the thermal head 42, the spring constant is relatively small first spring 44 1, the spring constant is accommodated a relatively large second spring 44 2 but first spring 44 1 is not a coil spring as in the second embodiment is composed of a conductive material made of a leaf spring 65 which is disposed on the second lower side of the spring 44 2.

また、第１接点部材６１は、板ばね６５の下側の端部を受ける、支持パイプ４１に対し固定の絶縁材料製のばね受け４４ａで構成される本体を有し、第２接点部材６２は、板ばね６５の上側の端部と第２ばね４４２との間に介設される中間ばね受け４４ｂで構成されている。板ばね６５の下側の端部は、第１接点部材６１の本体、即ち、ばね受け４４ａに固定され、当該端部に検出スイッチ６の一方のリード線６ａが接続されている。また、第１接点部材６１の本体に、検出スイッチ６の他方のリード線６ｂに接続されるピン状の接点６４が板ばね６５の上側の端部に対向し、且つ、板ばね６５の下側の端部に対し電気的に絶縁した状態で設けられている。そして、板ばね６５が所定量圧縮されたとき、図４（ｂ）に示す如く、第２接点部材６２が板ばね６５の上側の端部を介して接点６４に接触して検出スイッチ６がオンするようにしている。 The first contact member 61 has a main body configured to receive a lower end portion of the leaf spring 65 and is configured by a spring receiver 44a made of an insulating material fixed to the support pipe 41, and the second contact member 62 is , and a middle spring receiving 44b that is interposed between the upper end and the 2 second spring 44 of the plate spring 65. The lower end of the leaf spring 65 is fixed to the main body of the first contact member 61, that is, the spring receiver 44a, and one lead wire 6a of the detection switch 6 is connected to the end. Further, a pin-shaped contact 64 connected to the other lead wire 6 b of the detection switch 6 is opposed to the upper end of the leaf spring 65 on the main body of the first contact member 61 and the lower side of the leaf spring 65. It is provided in an electrically insulated state with respect to the end portion of this. When the leaf spring 65 is compressed by a predetermined amount, the second contact member 62 contacts the contact 64 via the upper end of the leaf spring 65 and the detection switch 6 is turned on as shown in FIG. Like to do.

第４実施形態でも、検出スイッチ６用の一対のリード線６ａ，６ｂを可動部材たる第２接点部材６２に配線する必要がなく、リード線６ａ，６ｂの断線故障を防止する上で有利である。更に、第４実施形態では、板ばね６５がリード線６ａに接続される接点に兼用されることになり、部品点数を削減してコストダウンを図ることができる。   Also in the fourth embodiment, it is not necessary to wire the pair of lead wires 6a and 6b for the detection switch 6 to the second contact member 62 that is a movable member, which is advantageous in preventing disconnection failure of the lead wires 6a and 6b. . Furthermore, in the fourth embodiment, the leaf spring 65 is also used as a contact point connected to the lead wire 6a, so that the number of parts can be reduced and the cost can be reduced.

尚、第４実施形態の変形例として、第２接点部材４４ｂに板ばね６５の上側の端部に電気的に接続される部分を設けると共に、接点６４を第２接点部材４４ｂの上記部分に対向する位置に配置し、板ばね６５が所定量圧縮されたときに、第２接点部材４４ｂの上記部分が接点６４に接触して検出スイッチ６がオンするように構成することも可能である。   As a modification of the fourth embodiment, the second contact member 44b is provided with a portion electrically connected to the upper end of the leaf spring 65, and the contact 64 is opposed to the above-mentioned portion of the second contact member 44b. It is also possible to arrange so that when the leaf spring 65 is compressed by a predetermined amount, the above-mentioned portion of the second contact member 44b contacts the contact 64 and the detection switch 6 is turned on.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されない。例えば、上記第２、第３実施形態において、ばね定数の小さな第１ばね４４１や板ばね６５をばね定数の大きな第２ばね４４２の上側に配置することも可能である。この場合、第１ばね４４１又は板ばね６５と第２ばね４４２との間に介設する中間ばね受けで第１接点部材を構成し、感熱ヘッド４２の上端部に第２接点部材を固定すればよい。然し、このものでは、第１と第２の各接点部材が可動部材となるため、リード線６ａ，６ｂの断線故障を防止するには、第２、第３実施形態の方が好ましい。 As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, the second, the third embodiment, it is also possible to a small first spring 44 1 and the leaf spring 65 of the spring constant is arranged in a large second upper spring 44 and second spring constants. In this case, the first spring 44 1 or the plate spring 65 constitutes a first contact member at an intermediate spring receiver that interposed between the 2 second spring 44, the second contact member to an upper end portion of the thermal head 42 fixed do it. However, in this case, since the first and second contact members are movable members, the second and third embodiments are preferable in order to prevent disconnection failure of the lead wires 6a and 6b.

１…天板、２…コンロバーナ、３…五徳、４…鍋底温度センサ、４１…支持パイプ、４２…感熱ヘッド、４３…感熱素子、４４…ばね、４４１…第１ばね、４４２…第２ばね、４４ａ…ばね受け、４４ｂ…中間ばね受け、６…検出スイッチ、６ａ，６ｂ…リード線、６１…第１接点部材、６２…第２接点部材、６３，６４…接点、６５…板ばね。 DESCRIPTION OF SYMBOLS 1 ... Top plate, 2 ... Cono burner, 3 ... Gotoku, 4 ... Pan bottom temperature sensor, 41 ... Support pipe, 42 ... Thermal head, 43 ... Thermal element, 44 ... Spring, 44 1 ... First spring, 44 2 ... First 2 springs, 44a ... spring receiver, 44b ... intermediate spring receiver, 6 ... detection switch, 6a, 6b ... lead wire, 61 ... first contact member, 62 ... second contact member, 63, 64 ... contact, 65 ... leaf spring .

Claims (5)

環状のコンロバーナで囲われるバーナ内方空間に挿通される上下方向に長手の支持パイプの上端部に上方に付勢して支持される、感熱素子を内蔵する感熱ヘッドを有する鍋底温度センサを備え、天板上の五徳に調理容器を載置したときに、感熱ヘッドが調理容器の底面に当接して押し下げられるようにしたガスコンロであって、
五徳に調理容器が載置されているか否かを検出するために、感熱ヘッドが押し下げられたときにオンする検出スイッチを備えるものにおいて、
感熱ヘッドに、支持パイプに対し感熱ヘッドを上方に付勢する単一のばねと、検出スイッチとが収納され、検出スイッチは、ばねを挟んで上下方向に対峙する第１と第２の接点部材を有し、ばねが所定量圧縮されたときに第１接点部材と第２接点部材とが接触して、検出スイッチがオンするようにし、
第１接点部材と前記第２接点部材は互いに嵌合可能な形状に形成され、第１接点部材と第２接点部材とが接触して前記検出スイッチがオンした後も感熱ヘッドの押し下げが可能であることを特徴とするガスコンロ。 A pan bottom temperature sensor having a thermal head with a built-in thermal element, supported upwardly by an upper end portion of a support pipe that is vertically inserted in a burner inner space surrounded by a ring-shaped stove burner. , A gas stove in which when the cooking container is placed on the virtues on the top plate, the thermal head is pressed against the bottom surface of the cooking container,
In order to detect whether or not the cooking container is placed on the five virtues, including a detection switch that is turned on when the thermal head is pushed down,
A single spring for biasing the thermal head upward with respect to the support pipe and a detection switch are housed in the thermal head, and the detection switch has first and second contact members facing each other in the vertical direction across the spring. And when the spring is compressed by a predetermined amount, the first contact member and the second contact member come into contact, and the detection switch is turned on ,
The first contact member and the second contact member are formed in a shape that can be fitted to each other, and the thermal head can be pushed down even after the first contact member and the second contact member come into contact with each other and the detection switch is turned on. gas stove, characterized in that there. 請求項１記載のガスコンロであって、
前記第１接点部材は、前記ばねの下端を受ける、前記支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、前記検出スイッチの一対のリード線に接続される一対の接点が互いに電気的に絶縁した状態で設けられ、
前記第２接点部材は、前記感熱ヘッドの上端部に固定され、ばねが所定量圧縮されたときに、第１接点部材の本体に設けた両接点に第２接点部材が接触し、両接点が第２接点部材を介して電気的に接続されて検出スイッチがオンすることを特徴とするガスコンロ。 The gas stove according to claim 1 , wherein
Wherein the first contact member is subjected to a lower end of said spring, said support pipe to have a body composed of a fixed spring retainer and the body, the pair being connected to a pair of lead wires of said detecting switches The contacts are provided in a state of being electrically insulated from each other,
The second contact member is fixed to the upper end portion of the thermal head, and when the spring is compressed by a predetermined amount, the second contact member comes into contact with both contacts provided on the main body of the first contact member. A gas stove characterized in that the detection switch is turned on by being electrically connected via the second contact member. 環状のコンロバーナで囲われるバーナ内方空間に挿通される上下方向に長手の支持パイプの上端部に上方に付勢して支持される、感熱素子を内蔵する感熱ヘッドを有する鍋底温度センサを備え、天板上の五徳に調理容器を載置したときに、感熱ヘッドが調理容器の底面に当接して押し下げられるようにしたガスコンロであって、
五徳に調理容器が載置されているか否かを検出するために、感熱ヘッドが押し下げられたときにオンする検出スイッチを備えるものにおいて、
感熱ヘッドに、支持パイプに対し感熱ヘッドを上方に付勢するばねとしてばね定数の異なる上下２個のばねと、検出スイッチとが収納され、これら２個のばねのうちばね定数の小さなものを第１ばね、ばね定数の大きなものを第２ばねとして、検出スイッチは、第１ばねを挟んで上下方向に対峙する第１と第２の接点部材を有し、第１ばねが所定量圧縮されたときに第１接点部材と第２接点部材とが接触して検出スイッチがオンし、
第１接点部材と第２接点部材との接触後は、第１ばねがそれ以上圧縮されることなく五徳に調理容器の底面が着座するまで第２ばねのみが圧縮されることを特徴とするガスコンロ。 A pan bottom temperature sensor having a thermal head with a built-in thermal element, supported upwardly by an upper end portion of a support pipe that is vertically inserted in a burner inner space surrounded by a ring-shaped stove burner. , A gas stove in which when the cooking container is placed on the virtues on the top plate, the thermal head is pressed against the bottom surface of the cooking container,
In order to detect whether or not the cooking container is placed on the five virtues, including a detection switch that is turned on when the thermal head is pushed down,
The thermal head contains two upper and lower springs having different spring constants as springs for urging the thermal head upward with respect to the support pipe , and a detection switch . The detection switch has first and second contact members facing each other in the vertical direction across the first spring , and the first spring is compressed by a predetermined amount. Sometimes the first contact member and the second contact member come into contact and the detection switch is turned on,
After the contact between the first contact member and the second contact member, only the second spring is compressed until the bottom surface of the cooking container is seated in the five virtue without further compression of the first spring. . 請求項３記載のガスコンロであって、
前記第１ばねは前記第２ばねの下側に配置され、
前記第１接点部材は、第１ばねの下端を受ける、前記支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、前記検出スイッチの一対のリード線に接続される一対の接点が互いに電気的に絶縁した状態で設けられ、
前記第２接点部材は、第１ばねと第２ばねとの間に介設される中間ばね受けで構成され、第１ばねが所定量圧縮されたときに、第１接点部材の本体に設けた両接点に第２接点部材が接触し、両接点が第２接点部材を介して電気的に接続されて検出スイッチがオンすることを特徴とするガスコンロ。 A gas stove according to claim 3 , wherein
The first spring is disposed below the second spring;
The first contact member has a main body configured to receive a lower end of the first spring and is a spring receiver fixed to the support pipe, and a pair connected to the pair of lead wires of the detection switch. Are provided in a state of being electrically insulated from each other,
The second contact member is composed of an intermediate spring receiver interposed between the first spring and the second spring, and provided on the main body of the first contact member when the first spring is compressed by a predetermined amount. A gas stove, characterized in that a second contact member comes into contact with both contacts, both contacts are electrically connected via the second contact member, and a detection switch is turned on. 請求項３記載のガスコンロであって、
前記第１ばねは、前記第２ばねの下側に配置される導電材料製の板ばねで構成され、前記検出スイッチの一方のリード線が板ばねの下側の端部に接続され、
前記第１接点部材は、板ばねの下側の端部を受ける、前記支持パイプに対し固定のばね受けで構成される本体を有し、この本体に、検出スイッチの他方のリード線に接続される接点が板ばねの下側の端部に対し電気的に絶縁した状態で設けられ、
前記第２接点部材は、板ばねの上側の端部と第２ばねとの間に介設される中間ばね受けで構成され、板ばねが所定量圧縮されたときに、第２接点部材が板ばねの上側の端部を介して第１接点部材の本体に設けた接点に接触し、又は、板ばねの上側の端部に電気的に接続される第２接点部材の部分が第１接点部材の本体に設けた接点に接触して検出スイッチがオンすることを特徴とするガスコンロ。 A gas stove according to claim 3 , wherein
The first spring is a plate spring made of a conductive material disposed below the second spring, and one lead wire of the detection switch is connected to the lower end of the plate spring,
The first contact member has a main body configured to receive a lower end portion of a leaf spring and is fixed to the support pipe, and is connected to the other lead wire of the detection switch. The contact is electrically insulated from the lower end of the leaf spring,
The second contact member is composed of an intermediate spring support interposed between the upper end of the leaf spring and the second spring, and when the leaf spring is compressed by a predetermined amount, the second contact member is The portion of the second contact member that contacts the contact provided on the main body of the first contact member via the upper end of the spring or is electrically connected to the upper end of the leaf spring is the first contact member. A gas stove in which a detection switch is turned on by contacting a contact provided on the main body of the gas.
JP2012014007A 2012-01-26 2012-01-26 Gas stove Active JP5580839B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012014007A JP5580839B2 (en) 2012-01-26 2012-01-26 Gas stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012014007A JP5580839B2 (en) 2012-01-26 2012-01-26 Gas stove

Publications (2)

Publication Number Publication Date
JP2013152062A JP2013152062A (en) 2013-08-08
JP5580839B2 true JP5580839B2 (en) 2014-08-27

Family

ID=49048542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012014007A Active JP5580839B2 (en) 2012-01-26 2012-01-26 Gas stove

Country Status (1)

Country Link
JP (1) JP5580839B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101783171B1 (en) 2017-03-24 2017-09-28 이규순 overheating safety sensor of gas range and it manufacture method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6017504B2 (en) * 2014-09-17 2016-11-02 リンナイ株式会社 Stove burner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137144Y2 (en) * 1980-10-30 1986-10-28
JPS6037059Y2 (en) * 1980-11-08 1985-11-05 三洋電機株式会社 electric cooker
JPS6196825U (en) * 1984-11-28 1986-06-21
JPH0886445A (en) * 1994-09-19 1996-04-02 Tokyo Gas Co Ltd Safety device for gas cooking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101783171B1 (en) 2017-03-24 2017-09-28 이규순 overheating safety sensor of gas range and it manufacture method

Also Published As

Publication number Publication date
JP2013152062A (en) 2013-08-08

Similar Documents

Publication Publication Date Title
US9066372B2 (en) Heating cooking device
US7488920B2 (en) Radiant heater in a cooking hob with a thermal switch
JP3174371U (en) Electromagnetic heating type yakiniku equipment
EP1966541B1 (en) A cooker
US10451292B2 (en) Radiant heater for a cooktop
US11506542B2 (en) Cooktop appliance with a wired temperature sensor
JP5580839B2 (en) Gas stove
JP2016044843A (en) Temperature detection device
JP5763012B2 (en) Detection device for cooking device
JP5564064B2 (en) Gas stove
KR20040011357A (en) Pan bottom temperature sensor for cooking appliance
JP6230396B2 (en) Temperature detector for cooking equipment
JP5237983B2 (en) Temperature sensor
JP2016038181A (en) Temperature detection device
KR101465890B1 (en) Cooking container detection device
JP4288129B2 (en) rice cooker
JP4451260B2 (en) Cooker temperature detection device
JP5699097B2 (en) Cooking container detection device
KR101825876B1 (en) Electric range having wireless electric-port and wireless cooking vessel thereof
JP2013152063A (en) Gas cooking stove
JP5648006B2 (en) Gas stove
WO2016139703A1 (en) Heating cooker
KR20170100810A (en) overheating prevent system of gas range
JP5507589B2 (en) Cooking container detector
EP1865752B1 (en) Radiant heater mounted with a thermal switch in a cooking hob

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130620

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140219

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140318

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140512

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140617

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140711

R150 Certificate of patent or registration of utility model

Ref document number: 5580839

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250