JPS602485Y2 - microwave oven - Google Patents

microwave oven

Info

Publication number
JPS602485Y2
JPS602485Y2 JP444377U JP444377U JPS602485Y2 JP S602485 Y2 JPS602485 Y2 JP S602485Y2 JP 444377 U JP444377 U JP 444377U JP 444377 U JP444377 U JP 444377U JP S602485 Y2 JPS602485 Y2 JP S602485Y2
Authority
JP
Japan
Prior art keywords
switch
door
main body
closed
cooking
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.)
Expired
Application number
JP444377U
Other languages
Japanese (ja)
Other versions
JPS5399655U (en
Inventor
孝昌 古沢
靖男 村中
芳生 一宮
Original Assignee
ブラザー工業株式会社
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 ブラザー工業株式会社 filed Critical ブラザー工業株式会社
Priority to JP444377U priority Critical patent/JPS602485Y2/en
Publication of JPS5399655U publication Critical patent/JPS5399655U/ja
Application granted granted Critical
Publication of JPS602485Y2 publication Critical patent/JPS602485Y2/en
Expired legal-status Critical Current

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  • Electric Ovens (AREA)

Description

【考案の詳細な説明】 本考案は、高周波発生装置の電源回路を簡略化するとと
もに扉の開放時に人体並びに通信等に悪影響を及ぼす高
周波エネルギーの外部漏洩を防止するスイッチ開閉機構
を備えた電子レンジに関するものである。
[Detailed description of the invention] The present invention is a microwave oven equipped with a switch opening/closing mechanism that simplifies the power supply circuit of the high-frequency generator and prevents external leakage of high-frequency energy that adversely affects the human body and communications when the door is opened. It is related to.

第1図は従来の電子レンジの高周波発生装置の電源回路
の一例を示す簡略結線図である。
FIG. 1 is a simplified wiring diagram showing an example of a power supply circuit of a conventional high frequency generator for a microwave oven.

この電源回路によれば、加熱室の扉が完全に閉成した状
態ではこの扉の開閉に応動するドアスイッチ1と、扉と
本体との間に設けられたラッチ機構の係脱動作に応動す
るラッチスイッチ2がともに閉成しているので、常開形
の押釦式調理スイッチ3を押圧すると、リレー4が働き
その主開閉器5,6が閉成するとともにこのリレー4が
自己保持されるので、電源7より高周波発生装置8へ電
力が供給され、加熱室内に高周波エネルギーが供給され
る。
According to this power supply circuit, when the door of the heating chamber is completely closed, the door switch 1 responds to the opening and closing of the door, and the door switch 1 responds to the engagement and disengagement of the latch mechanism provided between the door and the main body. Since both latch switches 2 are closed, when the normally open push-button cooking switch 3 is pressed, the relay 4 is activated and its main switches 5 and 6 are closed, and the relay 4 is self-held. , power is supplied from the power source 7 to the high frequency generator 8, and high frequency energy is supplied into the heating chamber.

そして、このような従来の高周波発生装置の電源回路で
は、扉が完全に閉成した場合のみ、調理スイッチ3で高
周波発生装置8への電力を供給できるようにしたり、或
いはドアスイッチ1またはラッチスイッチ2が開放する
と前述の電力供給を停止させ、この状態では調理スイッ
チ3を押圧しても電力供給が行えないようにするために
、第1図で示したように、リレー4を含む複雑、高価な
回路構成を必要とした。
In the power supply circuit of such a conventional high frequency generator, the cooking switch 3 can supply power to the high frequency generator 8 only when the door is completely closed, or the door switch 1 or the latch switch can supply power to the high frequency generator 8. 2 is opened, the power supply described above is stopped, and in this state, even if the cooking switch 3 is pressed, power cannot be supplied. In order to prevent the power supply from being supplied even if the cooking switch 3 is pressed, as shown in FIG. This required a unique circuit configuration.

そこで、本考案はこのような複雑、高価な回路構成を要
することなく、調理スイッチを扉の閉成時のみ機械的に
閉成可能とするために、扉の一部に、扉閉成時には本体
内へ挿入される突出片を備えるとともに、押釦の押圧操
作によりスイッチ支持体を移動、保持し、この突出片の
挿入に関連してスイッチを閉成、保持し、更にこのスイ
ッチの開放操作を扉の開放動作に連動させた、安価で安
全な電子レンジを提供するものである。
Therefore, in order to make the cooking switch mechanically closeable only when the door is closed, without requiring such a complicated and expensive circuit configuration, the present invention has been developed so that the cooking switch can be mechanically closed only when the door is closed. It has a protruding piece that is inserted into the interior, and moves and holds the switch support by pressing the push button, closes and holds the switch in connection with the insertion of the protruding piece, and also closes and holds the switch when the switch is opened. To provide an inexpensive and safe microwave oven that is linked to the opening operation of the microwave oven.

以下、図面を参照して本考案を詳細に説明する。Hereinafter, the present invention will be described in detail with reference to the drawings.

第2図は本考案に係る電子レンジの扉開放状態を示す斜
視図、第3図はその要部断面図、第4図はその扉閉成中
の調理側押圧操作時の要部断面図であり、図中9は本体
10内部に設けられた加熱室11の前面開口部を開閉す
る扉、12はこの扉9の前面右寄りに設けられた把手、
12aはこの把手12の前面中央部に把手12を貫通す
るようにして設けられた操作釦、13はこの扉9の本体
10側に設けられた突出片で扉閉成時には加熱室。
Fig. 2 is a perspective view showing the microwave oven according to the present invention with the door open, Fig. 3 is a sectional view of the main part thereof, and Fig. 4 is a sectional view of the main part when the cooking side is pressed while the door is closed. 9 in the figure is a door that opens and closes the front opening of the heating chamber 11 provided inside the main body 10, 12 is a handle provided on the front right side of this door 9,
Reference numeral 12a is an operation button provided at the center of the front surface of the handle 12 so as to pass through the handle 12, and reference numeral 13 is a protruding piece provided on the main body 10 side of the door 9, which opens the heating chamber when the door is closed.

11の前面周縁部に形成された透孔11aより本体10
内へ挿入されるものであり、その先端下部には凹部13
aが形成されている。
The main body 10 is
It is inserted into the body, and there is a recess 13 at the bottom of the tip.
a is formed.

14は同じく扉9の内部で軸14aに枢支され、その先
端部が本体10側に突出して設けられたフック片で扉9
;の閉成時には加熱室11の前面周縁部に形成された透
孔11bより本体内へ挿入され、本体10内部に取付け
られた係止部15に係合し扉9の閉成状態を保持するも
のであり、16はこの係止状態を保持するための弾性力
をフック片14に付勢すこるばね、17は扉9の内部で
軸17aにより枢支され、前記把手12に設けられた操
作釦12aの押圧操作をフック片14に伝達するための
連杆であり、操作釦12aを押圧するとフック片14が
ばね16の張力に抗して揺動し、係止部15より3離脱
せしめられ、扉9が開放可能となる。
Reference numeral 14 denotes a hook piece which is also pivotally supported on a shaft 14a inside the door 9 and whose tip protrudes toward the main body 10 side.
When the door 9 is closed, it is inserted into the main body through the through hole 11b formed in the front periphery of the heating chamber 11, and engages with the locking part 15 installed inside the main body 10 to maintain the closed state of the door 9. 16 is a spring that applies an elastic force to the hook piece 14 to maintain this locked state; 17 is a spring that is pivotally supported by a shaft 17a inside the door 9; This is a link for transmitting the pressing operation of the button 12a to the hook piece 14, and when the operation button 12a is pressed, the hook piece 14 swings against the tension of the spring 16 and is released from the locking part 15. , the door 9 can be opened.

18は本体10内の係止部15近傍に配され、フック片
14が係止部15に係脱されるのに伴ない開閉用アクチ
ュエータ18aがフック片14の先端鉤状部に押圧若し
くは押圧解除されることにより開閉4制御されるラッチ
スイッチ、19は本体10前面上部の操作パネル10a
の右側に設けられた調理開始用の調理側である。
18 is disposed near the locking part 15 in the main body 10, and as the hook piece 14 is engaged and disengaged from the locking part 15, the opening/closing actuator 18a presses or releases the pressure on the hook-shaped tip of the hook piece 14. A latch switch 19 is an operation panel 10a at the upper front of the main body 10, which is controlled to open and close by
This is the cooking side provided on the right side for starting cooking.

20はスイッチ21を支持するスイッチ支持体で、常に
ばばね22により上方に付勢されるとともに、その一部
に設けられた2個の長孔20a。
Reference numeral 20 denotes a switch support body supporting the switch 21, which is always urged upward by a spring 22, and has two elongated holes 20a formed in a part thereof.

20bには夫々本体10内に固定された固定軸23 a
t 23 bが遊嵌するように構成されている。
20b each have a fixed shaft 23a fixed within the main body 10.
t 23 b is configured to fit loosely.

=21aはスイッチ21の開閉用アクチュエータで常に
スイッチ21を開放する方向の弾力性が付勢されている
= 21a is an actuator for opening and closing the switch 21, and is always biased with elasticity in the direction of opening the switch 21.

24はスイッチ支持体20上で先端部が前記開閉用アク
チュエータ21aと当接可能に枢支された回動片で、常
にばばね25により開;開用アクチュエータ21aより
遠ざかるとともに先端部が突出片13の本体10内挿入
位置近傍に位置するように付勢されており、24aはそ
の先端部に設けられたコロである。
Reference numeral 24 denotes a rotary piece whose tip end is pivoted on the switch support 20 so that it can come into contact with the opening/closing actuator 21a, and is always opened by a spring 25; 24a is a roller provided at the tip thereof.

26は本体10内で軸26aに枢支された1字:状レバ
ーで、その一端が前記スイッチ支持体20の上端に連結
されるとともに前記ばね22の弾性力を助長するばね2
7の弾性力を付勢されており、またその他端が前記調理
側19に固定された伝達軸28に連結されていて、結局
、この1字状レバー26は調理側19が押圧された時、
前記スイッチ支持体20を下方に移動せしめるためのも
のである。
Reference numeral 26 denotes a lever in the shape of a straight line, which is pivotally supported on a shaft 26a within the main body 10, and one end of which is connected to the upper end of the switch support 20, and a spring 2 that promotes the elastic force of the spring 22.
7, and the other end is connected to a transmission shaft 28 fixed to the cooking side 19, so that when the cooking side 19 is pressed, this single-shaped lever 26
This is for moving the switch support 20 downward.

以上のような構成よりなる本スイッチ開閉機構において
、先ず扉開放時では第3図で示すように突出片13、並
びにフック片14が本体内へ挿入されていないためラッ
チスイッチ18が開放されたままとなっているとともに
、スイッチ支持体20上の回動片24がばね25の弾性
力により扉9方向に付勢されており、その先端部のコロ
24aがスイッチ21の開閉用アクチュエータ21aと
当接しているものの、スイッチ21を閉成させるには至
らない。
In this switch opening/closing mechanism constructed as described above, first, when the door is opened, the latch switch 18 remains open because the protruding piece 13 and the hook piece 14 are not inserted into the main body as shown in FIG. At the same time, the rotating piece 24 on the switch support 20 is urged in the direction of the door 9 by the elastic force of the spring 25, and the roller 24a at the tip comes into contact with the opening/closing actuator 21a of the switch 21. However, the switch 21 is not closed.

そして、この状態で操作者が誤って調理側19を押圧し
てスイッチ支持体20を下方に移動せしめても、回動片
24並びに開閉用アクチュエータ21aの相対的な位置
関係が変化しないため、スイッチ21は開放してままで
あり、またその後調理側19の押圧を解除すると、スイ
ッチ支持体20並びに1字状レバー26は共にばね22
,27の弾性力により図示した位置に復帰せしめられる
In this state, even if the operator accidentally presses the cooking side 19 and moves the switch support 20 downward, the relative positional relationship between the rotating piece 24 and the opening/closing actuator 21a will not change, so the switch 21 remains open, and when the pressure on the cooking side 19 is subsequently released, the switch support 20 as well as the single-shaped lever 26 are both released by the spring 22.
, 27 returns to the illustrated position.

次に、扉9閉成時の動作について説明すると、扉閉成中
で調理側19の非操作時は図示していないが、この時、
前記回動片24先端部のコロ24aは突出片13の上面
基部に当接するのみで、回動片24全体が殆んど回動す
るには至らず、従って、スイッチ21が開閉用アクチュ
エータ21aにより閉成せしめられることはない。
Next, to explain the operation when the door 9 is closed, when the door is closed and the cooking side 19 is not operated, although not shown, at this time,
The roller 24a at the tip of the rotating piece 24 only contacts the base of the upper surface of the protruding piece 13, and the entire rotating piece 24 hardly rotates. It will never be shut down.

そして、その状態で調理側19を押圧すると、先ず1字
状レバー26が図中反時計方向に回動し、これによりス
イッチ支持体20が下方に移動せしめられ、これに伴な
い回動片24全体も下方に移動することになる。
When the cooking side 19 is pressed in this state, the single-shaped lever 26 first rotates counterclockwise in the figure, thereby moving the switch support 20 downward, and the rotating piece 24 moves downward. The whole thing will also move downwards.

ところが、回動片24はその先端部のコロ24aを突出
片13の上面基部に当接させているため、これら一連の
移動につれてそのコロ24aが突出片13の上面を先端
部方向に転接しながら移動せしめられ、結局、回動片2
4はばね25の弾性力に抗して開閉用アクチュエータ2
1aを押圧する方向に回動せしめられ、スイッチ21を
閉成せしめるとともに遂にはそのコロ24aが突出片1
3の凹部13aに係止される。
However, since the rotating piece 24 has the roller 24a at its tip in contact with the base of the upper surface of the protruding piece 13, the roller 24a rolls into contact with the upper surface of the protruding piece 13 in the direction of the distal end as a result of this series of movements. As a result, the rotating piece 2
4 is an actuator 2 for opening and closing against the elastic force of a spring 25.
1a, the switch 21 is closed, and the roller 24a finally presses the protruding piece 1.
It is locked in the recess 13a of No.3.

そして、このコロ24aと突出片13の凹部13aとの
係合は、ばね25の弾性力により支持されるため調理側
19の押圧が解除された後も継続され、スイッチ支持体
20はスイッチ21が閉成せしめられた位置に保持され
る。
The engagement between the roller 24a and the recess 13a of the protruding piece 13 is supported by the elastic force of the spring 25, so that the engagement between the roller 24a and the recess 13a of the protruding piece 13 continues even after the pressure on the cooking side 19 is released, and the switch support 20 is supported by the elastic force of the spring 25. It is held in the closed position.

尚、この時、ラッチスイッチ18はフック片14により
閉成せしめられていることは勿論である。
Of course, at this time, the latch switch 18 is closed by the hook piece 14.

このようなスイッチ21の閉成状態保持動作は扉9が開
放され、突出片13が本体10外より抜は出る時、解除
される。
This closed state holding operation of the switch 21 is canceled when the door 9 is opened and the protruding piece 13 is removed from the outside of the main body 10.

即ち、先ずスイッチ21が回動片24の回動により開放
され、次いで突出片13の凹部13aと回動片24のコ
ロ24aとの係合が解かれる事により、スイッチ支持体
20、スイッチ21、回動片24及び1字状レバー;2
6が元の位置に復帰せしめられるのである。
That is, first, the switch 21 is opened by the rotation of the rotating piece 24, and then the engagement between the recess 13a of the protruding piece 13 and the roller 24a of the rotating piece 24 is released, so that the switch support 20, the switch 21, Rotating piece 24 and single-shaped lever; 2
6 is returned to its original position.

以上のように本スイッチ開閉機構を備えた電子レンジで
は、扉の閉成に伴ない本体内へ挿入される突出片を扉に
設け、スイッチを支持するスイッチ支持体を調理側の押
圧操作により移動せしめることともに、この時スイッチ
支持体上に枢支された回動片が前記突出片と当接しなが
ら回動しスイッチを閉成せしめるように構成することに
より、扉閉成時にのみ調理側によるスイッチの閉成操作
を可能とし、更にこのスイッチの閉成時には回動片の先
端部が突出片の一部に係止されることにより、調理側の
押圧が解除されても回動片がスイッチを閉成せしめるた
めの回動量を保持されるとと′もにスイッチ支持体の復
帰を妨げ、この一連の保持動作が扉の開放動作に連動し
て全て解除されるように構成したものであるが、このよ
うなスイッチ開閉機構を備えた電子レンジの電源回路を
簡略して示すと第5図のようになる。
As described above, in a microwave oven equipped with this switch opening/closing mechanism, the door is provided with a protruding piece that is inserted into the main body when the door is closed, and the switch support that supports the switch is moved by pressing the cooking side. At the same time, the rotating piece pivotally supported on the switch support rotates while contacting the protruding piece to close the switch, so that the switch can be operated by the cooking side only when the door is closed. Furthermore, when the switch is closed, the tip of the rotating piece is locked to a part of the protruding piece, so even if the pressure on the cooking side is released, the rotating piece will not close the switch. The structure is such that when the amount of rotation needed to close the door is maintained, the switch support is prevented from returning, and this series of holding operations is all released in conjunction with the opening operation of the door. FIG. 5 shows a simplified power supply circuit for a microwave oven equipped with such a switch opening/closing mechanism.

即ち、同図を第11図の従来例と対比すると、7が電源
、8が高周波発生装置、18がラッチスイッチ、21が
調理開始用のスイッチであり、これは従来例と比べてド
アスイッチ、調理開始用スイッチ、リレ一式主開閉器を
一個のスイッチに置換えてしまった極め′て簡素なもの
であり、しかも電子レンジの安全規準にも十分合致して
いる。
That is, when comparing this figure with the conventional example shown in FIG. 11, 7 is a power supply, 8 is a high frequency generator, 18 is a latch switch, and 21 is a switch for starting cooking. It is an extremely simple device that replaces the cooking start switch and relay main switch with a single switch, and also fully meets the safety standards for microwave ovens.

このように本考案に係る電子レンジはスイッチ支持体を
移動させるという新規な構成を有しその調理用のスイッ
チの閉成操作が扉閉成時のみに限定される点は外見上、
従来通りでありながら、その電源回路が従来のもののよ
うな複雑高価なものではなく、極めて簡素、安価なもの
となり、またそのスイッチの閉成状態保持動作を扉の開
放に連動して解除する構成とすれば、不用意な操作並び
にラッチスイッチの接点溶着という不測の事故等により
高周波エネルギーが本体外部に漏洩することを極力防止
しており、本考案の産業上奏する効果は極めて大である
As described above, the microwave oven according to the present invention has a novel configuration in which the switch support is moved, and the fact that the cooking switch can be closed only when the door is closed is apparent.
Although it is the same as the conventional one, the power supply circuit is not complicated and expensive like the conventional one, but is extremely simple and inexpensive, and the closed state of the switch is released in conjunction with the opening of the door. If so, the leakage of high frequency energy to the outside of the main body due to careless operation or unexpected accidents such as welding of the contacts of the latch switch is prevented as much as possible, and the industrial effect of the present invention is extremely large.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の電子レンジの電源回路の簡略図、第2図
は本考案に係る電子レンジの扉開放状態の斜視図、第3
図はその要部断面図、第4図はその扉閉成中で調理側押
圧操作時の要部断面図、第5図はその電源回路の簡略図
である。 図中、8は高周波発生装置、9は扉、10は本体、13
は突出片、19は調理側、20はスイッチ支持体、21
はスイッチ、24は回動片である。
Figure 1 is a simplified diagram of the power supply circuit of a conventional microwave oven, Figure 2 is a perspective view of the microwave oven according to the present invention with the door open, and Figure 3 is a simplified diagram of the power supply circuit of a conventional microwave oven.
The figure is a sectional view of the main part, FIG. 4 is a sectional view of the main part when the cooking side is pressed while the door is closed, and FIG. 5 is a simplified diagram of the power supply circuit. In the figure, 8 is a high frequency generator, 9 is a door, 10 is a main body, 13
19 is a protruding piece, 19 is a cooking side, 20 is a switch support, 21
is a switch, and 24 is a rotating piece.

Claims (1)

【実用新案登録請求の範囲】 内部に加熱室を備えた本体と、この本体に装着され前記
加熱室の前面開口部を開閉する扉と、前記本体内に設け
られ、前記加熱室内に高周波を供給する高周波発生装置
と、本体内に設けられこの高周波発生装置の作動を制御
するためその電源回路内に接続されたスイッチと、この
スイッチを開閉するため本体に設けられた調理釦とを備
えた電子レンジにおいて、 扉の一部に設けられ、扉閉成時には本体内へ挿入される
突片と、 前記スイッチを支持するとともに、常には一方向に弾性
力が付勢され、この弾性力に抗する調理釦の押圧操作に
より移動可能に設けられたスイッチ支持体と、 このスイッチ支持体上に設けられ、常にはスイッチを開
放する方向の弾性力が付勢されていて、扉閉成時には調
理釦の押圧操作による前記支持体の移動に伴ない、前記
突出片と当接しながら回動したスイッチを閉成せしめる
とともに、この時先端部が前記突片の一部に係止される
ことによりそのスイッチ閉成状態を保持する回動片とを
有し、扉閉成時のみ、調理釦の押圧操作によりスイッチ
支持体を移動、保持し、スイッチを閉成、保持可能とし
たことを特徴とする電子レンジ。
[Claims for Utility Model Registration] A main body with a heating chamber inside, a door attached to the main body to open and close the front opening of the heating chamber, and a door provided in the main body to supply high frequency waves into the heating chamber. An electronic device comprising: a high-frequency generator for generating electricity; a switch provided within the main body and connected to its power circuit for controlling the operation of the high-frequency generator; and a cooking button provided on the main body for opening and closing the switch. In a microwave oven, there is a protrusion that is installed in a part of the door and inserted into the main body when the door is closed, and a protrusion that supports the switch and is always biased in one direction by an elastic force that resists this elastic force. A switch support is provided to be movable when the cooking button is pressed, and an elastic force provided on the switch support is always applied in the direction of opening the switch, so that when the door is closed, the cooking button is moved. As the support moves by the pressing operation, the switch is rotated while coming into contact with the protruding piece, and at this time, the tip portion is locked to a part of the protruding piece, thereby closing the switch. A microwave oven characterized in that the switch support is moved and held by pressing a cooking button only when the door is closed, and the switch can be closed and held. .
JP444377U 1977-01-18 1977-01-18 microwave oven Expired JPS602485Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP444377U JPS602485Y2 (en) 1977-01-18 1977-01-18 microwave oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP444377U JPS602485Y2 (en) 1977-01-18 1977-01-18 microwave oven

Publications (2)

Publication Number Publication Date
JPS5399655U JPS5399655U (en) 1978-08-12
JPS602485Y2 true JPS602485Y2 (en) 1985-01-24

Family

ID=28691303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP444377U Expired JPS602485Y2 (en) 1977-01-18 1977-01-18 microwave oven

Country Status (1)

Country Link
JP (1) JPS602485Y2 (en)

Also Published As

Publication number Publication date
JPS5399655U (en) 1978-08-12

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