JPH0532013Y2 - - Google Patents
Info
- Publication number
- JPH0532013Y2 JPH0532013Y2 JP1988035976U JP3597688U JPH0532013Y2 JP H0532013 Y2 JPH0532013 Y2 JP H0532013Y2 JP 1988035976 U JP1988035976 U JP 1988035976U JP 3597688 U JP3597688 U JP 3597688U JP H0532013 Y2 JPH0532013 Y2 JP H0532013Y2
- Authority
- JP
- Japan
- Prior art keywords
- rice
- inner pot
- heater
- rice cooker
- 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 - Lifetime
Links
- 241000209094 Oryza Species 0.000 claims description 90
- 235000007164 Oryza sativa Nutrition 0.000 claims description 90
- 235000009566 rice Nutrition 0.000 claims description 90
- 238000010411 cooking Methods 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Cookers (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、保温兼用の電気炊飯器に関するもの
である。[Detailed description of the invention] (Industrial field of application) The present invention relates to an electric rice cooker that also serves as heat insulation.
（従来技術）
従来の電気炊飯器は、炊飯時の加熱方式とし
て、炊飯器本体の底部中央部に設けた炊飯用ヒー
タを直接内鍋底面に接触させて加熱するようにし
たいわゆる直接加熱方式のものと、炊飯器本体の
内面と内鍋の外面との間の空間部内の空気を加熱
して行うようにしたいわゆる間接加熱方式のもの
とがある。(Prior art) Conventional electric rice cookers use a so-called direct heating method in which a rice heater installed at the center of the bottom of the rice cooker body is brought into direct contact with the bottom of the inner pot to heat the rice. There is also a so-called indirect heating method that heats the air in the space between the inner surface of the rice cooker body and the outer surface of the inner pot.
ところが、上記直接加熱方式のみで炊飯を行う
ようにした電気炊飯器では、内鍋の底部付近と内
鍋の上方部付近との間の加熱温度差が大きくなつ
て内鍋底部付近と内鍋上方部付近との間に加熱ム
ラ（炊きムラ）ができることがあるという問題が
あり、他方、上記間接加熱方式のみで炊飯を行う
ようにした電気炊飯器では、内鍋の底面及び外側
面から均一加熱し得るが直接加熱方式に比べて熱
効率が悪いという問題があつた。 However, in an electric rice cooker that cooks rice using only the above-mentioned direct heating method, the heating temperature difference between the area near the bottom of the inner pot and the area above the inner pot becomes large. On the other hand, electric rice cookers that cook rice using only the indirect heating method described above have the problem of uneven heating (uneven cooking) between the inner pot and the outer pot. However, there was a problem that the thermal efficiency was lower than that of the direct heating method.
（考案の目的）
本考案は、上記した従来の電気炊飯器の問題点
に鑑み、炊飯時の炊きムラをなくすとともに間接
加熱のみによる加熱方式に比べて熱損失を小さく
し得るようにし、しかも炊飯時における内鍋に対
する加熱空間を保温時における内鍋への加熱空間
として共用し得るようにした電気炊飯器を提供す
ることを目的とするものである。(Purpose of the invention) In view of the above-mentioned problems with conventional electric rice cookers, the present invention eliminates uneven cooking when cooking rice, reduces heat loss compared to a heating method using only indirect heating, and makes it possible to cook rice. An object of the present invention is to provide an electric rice cooker in which the heating space for the inner pot during heating can also be used as the heating space for the inner pot during warming.
（目的を達成するための手段）
本考案の電気炊飯器は、炊飯器本体内の底部中
央部に前記炊飯器本体内に収容される内鍋の底面
と接触する炊飯用主ヒータを設け、さらに前記炊
飯器本体内の底部隅角部に該炊飯器本体の内側面
と前記内鍋の外側面の間の空間部の空気を加熱し
得る炊飯用補助ヒータを設けるとともに、炊飯器
本体に、前記空間部に対応する位置にあつて該空
間部の空気を加熱する保温用ヒータを設けたこと
を特徴としている。(Means for Achieving the Object) The electric rice cooker of the present invention is provided with a main heater for rice cooking in the center of the bottom of the rice cooker body, which comes into contact with the bottom surface of the inner pot housed in the rice cooker body, and further includes: An auxiliary heater for rice cooking that can heat the air in the space between the inner surface of the rice cooker main body and the outer surface of the inner pot is provided at the bottom corner of the rice cooker main body, and the It is characterized in that a heat-retaining heater is provided at a position corresponding to the space and heats the air in the space.
（作用）
本考案の電気炊飯器によれば、内鍋底面に接触
する炊飯用主ヒータにより内鍋をその底面から直
接加熱できると同時に炊飯器本体内側面と内鍋外
側面間の空間部の空気を加熱する炊飯用補助ヒー
タにより内鍋をその外側面から間接加熱できるの
で、内鍋内を均一加熱し得るようになる。(Function) According to the electric rice cooker of the present invention, the inner pot can be directly heated from the bottom surface by the rice cooking main heater in contact with the bottom surface of the inner pot. Since the inner pot can be indirectly heated from the outer surface of the rice cooker by the rice cooking auxiliary heater that heats air, the inside of the inner pot can be heated evenly.
又、本考案の電気炊飯器では、炊飯器本体に、
上記空間部に対応する位置にあつて該空間部の空
気を加熱する保温用ヒータを設けており、該空間
部の空気を、炊飯時においては上記炊飯用補助ヒ
ータで加熱でき、又保温時においては保温用ヒー
タで加熱できる。従つて、上記空間部を、炊飯時
及び保温時の両加熱時においてそれぞれ間接加熱
空間として共用できる。 In addition, in the electric rice cooker of this invention, the rice cooker itself has
A heat-retaining heater is provided at a position corresponding to the space and heating the air in the space, and the air in the space can be heated by the auxiliary rice-cooking heater when cooking rice, and when keeping warm. can be heated with a heater. Therefore, the above-mentioned space can be used in common as an indirect heating space during both cooking and keeping warm rice.
（実施例）
第１図ないし第３図にはそれぞれ本考案の第１
ないし第３実施例の電気炊飯器が示されている。
この第１ないし第３の各実施例では保温兼用の電
気炊飯器が採用されている。(Example) Figures 1 to 3 each show the first example of the present invention.
An electric rice cooker according to a third embodiment is shown.
In each of the first to third embodiments, an electric rice cooker that also serves as a heat retainer is employed.
第１図に示す第１実施例の電気炊飯器は、外ケ
ース１１と内ケース１２とを環状の肩部材１３で
連結し且つ該外ケース１１と内ケース１２間に断
熱材１４を介設してなる炊飯器本体１内に内鍋３
を収容し、さらに該炊飯器本体１の上部に、炊飯
器本体１の上部を被覆する外蓋２１と内鍋３の開
口を閉塞する鍋蓋２２を有する蓋ユニツト２を枢
着して構成されている。 The electric rice cooker of the first embodiment shown in FIG. 1 has an outer case 11 and an inner case 12 connected by an annular shoulder member 13, and a heat insulating material 14 interposed between the outer case 11 and the inner case 12. Inner pot 3 inside rice cooker body 1
A lid unit 2 is pivotally mounted on the top of the rice cooker body 1 and has an outer lid 21 that covers the top of the rice cooker body 1 and a pot lid 22 that closes the opening of the inner pot 3. ing.
炊飯器本体１内の底部には、その中央部１ａに
内鍋３の底面３ｂに接触する円盤状の炊飯用主ヒ
ータ５と、隅角部１ｂに内ケース内側面１２ａと
内鍋外側面３ａとの間の空間部１０の空気を加熱
し得る環状の炊飯用補助ヒータ６とが設けられて
いる。 At the bottom of the rice cooker main body 1, there is a disk-shaped main heater 5 for rice cooking that contacts the bottom surface 3b of the inner pot 3 at the center portion 1a, and an inner case inner surface 12a and an inner pot outer surface 3a at the corner portions 1b. An annular auxiliary heater 6 for rice cooking that can heat the air in the space 10 between the rice cooker and the rice cooker is provided.
炊飯用主ヒータ５は、内鍋３の底面３ｂの外径
よりやや小さい外径を有している。この炊飯用主
ヒータ５の中央部には内鍋底面３ｂの温度を検知
して炊飯用ヒータ５，６の発熱制御をする温度セ
ンサー７が設けられている。又、この炊飯用主ヒ
ータ５は、内ケース１２の底部１２ｂ上にスプリ
ング１６により浮動状態で設置されている。尚、
この炊飯用主ヒータ５は、炊飯器本体１内に内鍋
３が収容されていないときにはその上面５ａが鎖
線５a′で示すように上動しており、炊飯器本体１
内に内鍋３を収容すると炊飯用主ヒータ５の上面
５ａが内鍋３の底面３ｂに押圧されて実線図示位
置まで押し下げられるようになつている。 The main heater 5 for rice cooking has an outer diameter slightly smaller than the outer diameter of the bottom surface 3b of the inner pot 3. A temperature sensor 7 is provided in the center of the main rice-cooking heater 5 to detect the temperature of the bottom surface 3b of the inner pot and control the heat generation of the rice-cooking heaters 5 and 6. Moreover, this rice cooking main heater 5 is installed in a floating state on the bottom part 12b of the inner case 12 by a spring 16. still,
When the inner pot 3 is not housed in the rice cooker main body 1, the main heater 5 for rice cooking has its upper surface 5a moved upward as shown by a chain line 5a'.
When the inner pot 3 is housed inside, the top surface 5a of the main heater 5 for rice cooking is pressed against the bottom surface 3b of the inner pot 3 and pushed down to the position shown by the solid line.
炊飯用補助ヒータ６は、炊飯器本体１内の底部
隅角部１ｂにおいて内ケース底部１２ｂ上面にビ
ス止めされている。又この炊飯用補助ヒータ６
は、この第１実施例では、炊飯器本体１内に内鍋
３を収容したときに該内鍋３の底部隅角部３ｃ外
面が接触して、該内鍋３を支持し得るように設置
されている。この炊飯用補助ヒータ６の上半部分
は、内ケース１２の内側面１２ａと内鍋３の外側
面３ａとの間に形成されている環状の空間部１０
内に臨ませており、炊飯用補助ヒータ６に通電さ
れると該補助ヒータ６からの輻射熱で空間部１０
内の空気を加熱するようになる。 The rice cooking auxiliary heater 6 is screwed to the upper surface of the inner case bottom 12b at the bottom corner 1b inside the rice cooker main body 1. Also, this auxiliary heater for rice cooking 6
In this first embodiment, when the inner pot 3 is housed in the rice cooker main body 1, the outer surface of the bottom corner 3c of the inner pot 3 comes into contact with the inner pot 3, and is installed so that the inner pot 3 can be supported. has been done. The upper half of this rice-cooking auxiliary heater 6 has an annular space 10 formed between the inner surface 12a of the inner case 12 and the outer surface 3a of the inner pot 3.
When the rice cooking auxiliary heater 6 is energized, the space 10 is heated by radiant heat from the auxiliary heater 6.
It starts to heat the air inside.
内ケース１２の外側面には、内鍋３内の米飯を
保温するための保温用ヒータ８が設けられてい
る。この保温用ヒータ８は、内ケース１２の外面
で且つ上記空間部１０に対応する位置にあつて、
通電時に該空間部１０の空気を加熱するようにな
つている。 A heat-retaining heater 8 for keeping the cooked rice in the inner pot 3 warm is provided on the outer surface of the inner case 12. This heat-retaining heater 8 is located on the outer surface of the inner case 12 and at a position corresponding to the space 10.
The air in the space 10 is heated when electricity is applied.
前記鍋蓋２２は外蓋２１の下面中央部にピン２
３によつて支持されている。 The pot lid 22 has a pin 2 at the center of the lower surface of the outer lid 21.
It is supported by 3.
外蓋２１の底板２１ａの上面には保温時に鍋蓋
２２を加熱するための保温用の蓋ヒータ９が設け
られている。 A lid heater 9 for heat retention is provided on the upper surface of the bottom plate 21a of the outer lid 21 to heat the pot lid 22 during heat retention.
この第１実施例の電気炊飯器では、炊飯時に
は、炊飯用主ヒータ５と炊飯用補助ヒータ６に同
時に通電され主ヒータ５からの発熱は内鍋底面３
ｂから接触伝熱して内鍋３の底部を直接加熱し、
他方補助ヒータ６からの発熱はその一部が内鍋３
の底部隅角部３ｃ外面から接触伝熱する一方で残
りの熱で内ケース内側面１２ａと内鍋外側面３ａ
との間の空間部１０内の空気を加熱して、内鍋３
を側周部からも間接加熱するようになる。従つて
内鍋３内の米飯は、該内鍋３の下面及び側周面か
ら均一に加熱されるようになり、炊き上り状態が
良好となる（炊きムラが生じない）。又、両炊飯
用ヒータ５，６のうちの主ヒータ５は、その上面
５ａ全面が内鍋底面３ｂに接触しているので、該
主ヒータ５部分の熱効率が良好となり、内鍋３を
その側周部からも加熱し得るようにしたものにお
いて間接加熱方式のみで構成した従来の電気炊飯
器に比してその全体の熱効率を向上させることが
できるようになる。尚、炊飯作用が終了すれば、
通電が炊飯用ヒータ５，６側から保温用ヒータ
８，９側に切換つて保温される。この保温時に
は、炊飯器本体１側の保温用ヒータ８は、炊飯器
本体内側面１２ａと内鍋外側面３ａ間の空間部１
０の空気を加熱して、内鍋３をその側周部から間
接加熱するようになる。 In the electric rice cooker of the first embodiment, when cooking rice, power is supplied to the main heater 5 for rice cooking and the auxiliary heater 6 for rice cooking at the same time, and the heat generated from the main heater 5 is transferred to the bottom surface of the inner pot.
The bottom of the inner pot 3 is directly heated by contact heat transfer from b,
On the other hand, part of the heat generated from the auxiliary heater 6 is transferred to the inner pot 3.
While contact heat is transferred from the outer surface of the bottom corner 3c, the remaining heat is transferred between the inner case inner surface 12a and the inner pot outer surface 3a.
By heating the air in the space 10 between the inner pot 3 and
is heated indirectly from the side periphery. Therefore, the cooked rice in the inner pot 3 is uniformly heated from the lower surface and side circumferential surface of the inner pot 3, and the rice is well cooked (no uneven cooking occurs). Moreover, since the main heater 5 of the rice-cooking heaters 5 and 6 has its entire upper surface 5a in contact with the inner pot bottom surface 3b, the thermal efficiency of the main heater 5 portion is good, and the inner pot 3 is placed on that side. In a device that can heat from the periphery, the overall thermal efficiency can be improved compared to a conventional electric rice cooker that uses only an indirect heating method. In addition, once the rice cooking action is finished,
Electricity is switched from the rice-cooking heaters 5 and 6 to the heat-retaining heaters 8 and 9 to keep the rice warm. During this heat retention, the heat retention heater 8 on the side of the rice cooker main body 1 is connected to the space 1 between the inner side surface 12a of the rice cooker main body and the outer surface 3a of the inner pot.
0 air is heated, and the inner pot 3 is indirectly heated from its side periphery.
第２図に示す第２実施例の電気炊飯器では、炊
飯用主ヒータ５は内ケース底部上面１２ａにビス
止め固定されている。又、この炊飯器本体１内の
底部隅角部１ｂに設けられる環状の炊飯用補助ヒ
ータ６は、インコロイ式のものが採用されてい
て、炊飯器本体１内の底部隅角部１ｂに設けられ
た環状の熱反射板２４の内側（内鍋３の底部隅角
部外面と熱反射板２４との間の空間部内）にヒー
タ保持金具２５で支持されている。従つて、この
炊飯用補助ヒータ６からの発熱は、輻射熱となつ
て内ケース内側面１２ａと内鍋外側面３ａ間の空
間部１０内の空気を加熱して内鍋３を間接加熱す
るようになる。尚、上記熱反射板２４とヒータ保
持金具２５は、共通のビス２６で内ケース底板１
２ｂ上に固定されている。 In the electric rice cooker of the second embodiment shown in FIG. 2, the main heater 5 for rice cooking is fixed to the bottom upper surface 12a of the inner case with screws. The annular rice cooking auxiliary heater 6 provided at the bottom corner 1b of the rice cooker main body 1 is of the Incoloy type. It is supported by a heater holding fitting 25 inside the annular heat reflecting plate 24 (inside the space between the outer surface of the bottom corner of the inner pot 3 and the heat reflecting plate 24). Therefore, the heat generated from the rice cooking auxiliary heater 6 becomes radiant heat, heats the air in the space 10 between the inner case inner surface 12a and the inner pot outer surface 3a, and indirectly heats the inner pot 3. Become. The heat reflecting plate 24 and the heater holding fitting 25 are attached to the inner case bottom plate 1 using a common screw 26.
2b.
（考案の効果）
本考案の電気炊飯器は、内鍋３の底面３ｂと接
触する主ヒータ５と炊飯器本体内側面１２ａと内
鍋外側面３ａの間の空間部１０の空気を加熱し得
る補助ヒータ６との２つの炊飯用ヒータを使用し
ているので、主ヒータ５により内鍋３の底面３ｂ
から直接加熱できるようにしたものであつても補
助ヒータ６により上記空間部１０の空気を加熱し
て内鍋３の側周面からも加熱することができ、内
鍋３内の米飯を均一に炊き上げることができる
（炊きムラが生じなくなる）とともに、そのよう
に内鍋３の外側を均一に加熱し得るようにしたも
のであつても、従来の間接加熱のみによる炊飯方
式のものに比して熱効率が向上するという効果が
ある。(Effect of the invention) The electric rice cooker of the invention can heat the air in the space 10 between the main heater 5 that comes into contact with the bottom surface 3b of the inner pot 3, the inner side surface 12a of the rice cooker body, and the outer surface 3a of the inner pot. Since two rice-cooking heaters are used, including the auxiliary heater 6, the bottom surface 3b of the inner pot 3 is heated by the main heater 5.
Even if the rice is heated directly from the inner pot 3, the auxiliary heater 6 can heat the air in the space 10 and also heat from the side surface of the inner pot 3, so that the cooked rice in the inner pot 3 can be heated evenly. Even though the rice can be cooked evenly (no uneven cooking occurs) and the outside of the inner pot 3 can be heated evenly, it is still more efficient than the conventional rice cooking method that uses only indirect heating. This has the effect of improving thermal efficiency.
又、本考案の電気炊飯器によれば、炊飯器本体
１に、上記空間部１０に対応する位置にあつて該
空間部１０の空気を加熱する保温用ヒータ８を設
けているので、該空間部１０の空気を、炊飯時に
おいては炊飯用補助ヒータ６で加熱でき、又保温
時においては保温用ヒータ８で加熱できる。従つ
て、上記空間部１０を、炊飯時及び保温時の両加
熱時において内鍋３に対する間接加熱空間として
共用できるという効果がある。 Further, according to the electric rice cooker of the present invention, the rice cooker main body 1 is provided with the heat-retaining heater 8 which is located at a position corresponding to the space 10 and heats the air in the space 10. The air in the portion 10 can be heated by the auxiliary rice-cooking heater 6 when cooking rice, and can be heated by the heat-retaining heater 8 when keeping the rice warm. Therefore, there is an effect that the space 10 can be used in common as an indirect heating space for the inner pot 3 during both cooking and keeping warm rice.
第１図及び第２図はそれぞれ本考案の第１及び
第２実施例にかかる電気炊飯器の縦断面図であ
る。
１……炊飯器本体、１ａ……底部中央部、１ｂ
……底部隅角部、２……蓋ユニツト、３……内
鍋、３ａ……外側面、３ｂ……底面、５……炊飯
用主ヒータ、６……炊飯用補助ヒータ、８……保
温用ヒータ、１０……空間部、１２ａ……内側
面。
1 and 2 are longitudinal sectional views of electric rice cookers according to first and second embodiments of the present invention, respectively. 1...Rice cooker main body, 1a...Bottom center, 1b
... Bottom corner, 2 ... Lid unit, 3 ... Inner pot, 3a ... Outer surface, 3b ... Bottom surface, 5 ... Main heater for rice cooking, 6 ... Auxiliary heater for rice cooking, 8 ... Heat retention heater, 10...space, 12a...inner surface.
Claims (1)
体１内に収容される内鍋３の底面３ｂと接触する
炊飯用主ヒータ５を設け、 さらに前記炊飯器本体１内の底部隅角部１ｂに
該炊飯器本体１の内側面１２ａと前記内鍋３の外
側面３ａの間の空間部１０の空気を加熱し得る炊
飯用補助ヒータ６を設けるとともに、 前記炊飯器本体１に、前記空間部１０に対応す
る位置にあつて該空間部１０の空気を加熱する保
温用ヒータ８を設けた、 ことを特徴とする電気炊飯器。[Claims for Utility Model Registration] A rice cooking main heater 5 is provided in the bottom central portion 1a of the rice cooker body 1 and comes into contact with the bottom surface 3b of the inner pot 3 housed in the rice cooker body 1, and further, the rice cooker body An auxiliary heater 6 for rice cooking capable of heating the air in the space 10 between the inner surface 12a of the rice cooker main body 1 and the outer surface 3a of the inner pot 3 is provided in the bottom corner 1b of the rice cooker body 1, and An electric rice cooker characterized in that the main body 1 is provided with a heat-retaining heater 8 located at a position corresponding to the space 10 and heating the air in the space 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988035976U JPH0532013Y2 (en) | 1988-03-17 | 1988-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988035976U JPH0532013Y2 (en) | 1988-03-17 | 1988-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01138320U JPH01138320U (en) | 1989-09-21 |
| JPH0532013Y2 true JPH0532013Y2 (en) | 1993-08-17 |
Family
ID=31262598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988035976U Expired - Lifetime JPH0532013Y2 (en) | 1988-03-17 | 1988-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0532013Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632021Y2 (en) * | 1989-07-31 | 1994-08-24 | 北栄精機株式会社 | rice cooker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546265B2 (en) * | 1976-08-13 | 1979-03-27 | ||
| JPS5617088U (en) * | 1979-07-16 | 1981-02-14 | ||
| JPS5617088A (en) * | 1979-07-20 | 1981-02-18 | Matsushita Electric Ind Co Ltd | Manufacture of magnetoelectricity converting element |
| JPS5753453U (en) * | 1980-09-08 | 1982-03-27 | ||
| JPS5916027U (en) * | 1982-07-21 | 1984-01-31 | 双葉電子工業株式会社 | Push button switch with lock mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5720089Y2 (en) * | 1977-06-14 | 1982-04-28 |
-
1988
- 1988-03-17 JP JP1988035976U patent/JPH0532013Y2/ja not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546265B2 (en) * | 1976-08-13 | 1979-03-27 | ||
| JPS5617088U (en) * | 1979-07-16 | 1981-02-14 | ||
| JPS5617088A (en) * | 1979-07-20 | 1981-02-18 | Matsushita Electric Ind Co Ltd | Manufacture of magnetoelectricity converting element |
| JPS5753453U (en) * | 1980-09-08 | 1982-03-27 | ||
| JPS5916027U (en) * | 1982-07-21 | 1984-01-31 | 双葉電子工業株式会社 | Push button switch with lock mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01138320U (en) | 1989-09-21 |
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