JP3522652B2 - rice cooker - Google Patents
rice cookerInfo
- Publication number
- JP3522652B2 JP3522652B2 JP2000151875A JP2000151875A JP3522652B2 JP 3522652 B2 JP3522652 B2 JP 3522652B2 JP 2000151875 A JP2000151875 A JP 2000151875A JP 2000151875 A JP2000151875 A JP 2000151875A JP 3522652 B2 JP3522652 B2 JP 3522652B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- ball
- chamber cover
- rice cooker
- damping
- 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 - Fee Related
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims description 36
- 235000009566 rice Nutrition 0.000 title claims description 36
- 240000007594 Oryza sativa Species 0.000 title 1
- 238000013016 damping Methods 0.000 claims description 76
- 230000001105 regulatory effect Effects 0.000 claims description 48
- 241000209094 Oryza Species 0.000 claims description 35
- 230000033228 biological regulation Effects 0.000 claims description 31
- 230000002093 peripheral effect Effects 0.000 description 9
- 230000003584 silencer Effects 0.000 description 7
- 238000010411 cooking Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cookers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は炊飯ジャー等の炊
飯器に関し、特に調圧ボールの制振構造に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker such as a rice cooker, and more particularly to a vibration control structure for pressure regulating balls.
【０００２】[0002]
【従来の技術】圧力型の炊飯器においては、蒸気通路の
途中に調圧装置を設けて炊飯器の内部圧力を所定の加圧
状態に設定するようにしている。この調圧装置は、蒸気
通路の途中に設けた弁孔上に調圧ボールを載せ、その自
重と弁孔部分に作用する蒸気圧力とをバランスさせて調
圧作用を行うものである。この調圧作用は、蒸気圧力が
上昇して調圧ボールの自重を越えると、これを押しのけ
て弁孔を開放し、蒸気を排出させる。蒸気の排出により
蒸気圧力が低下すると調圧ボールが元の状態に戻り弁孔
を閉塞する。そうすると、再び蒸気圧力が上昇するとい
う作用を繰り返すものである。2. Description of the Related Art In a pressure type rice cooker, a pressure adjusting device is provided in the middle of a steam passage to set the internal pressure of the rice cooker to a predetermined pressure. This pressure regulating device places a pressure regulating ball on a valve hole provided in the middle of the steam passage, and balances its own weight with the steam pressure acting on the valve hole portion to perform the pressure regulating action. When the steam pressure rises and exceeds the self-weight of the pressure adjusting ball, this pressure adjusting action pushes away the pressure adjusting ball to open the valve hole and discharge the steam. When the steam pressure drops due to the discharge of steam, the pressure regulating ball returns to its original state and closes the valve hole. Then, the action of increasing the vapor pressure again is repeated.
【０００３】[0003]
【発明が解決しようとする課題】しかし、調圧ボールは
所要の自重を得るために、金属、セラミック等の硬質材
により形成されているため、上記の調圧作用により激し
く振動して、弁座部材等に繰り返し衝突することにより
騒音発生の原因となる。However, since the pressure-regulating ball is made of a hard material such as metal or ceramic in order to obtain the required self-weight, it vibrates violently due to the above-mentioned pressure-regulating action and the valve seat Repeated collisions with members etc. cause noise generation.
【０００４】そこで、この発明は上記の調圧ボールの振
動を抑制することにより騒音を減衰させ、静かに炊飯で
きるようにすることを課題とする。Therefore, an object of the present invention is to suppress noises by suppressing the vibration of the pressure-regulating ball so that rice can be cooked quietly.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明は、蒸気通路の途中に設けた弁孔上に調
圧ボールを載せ、その調圧ボールの自重と蒸気圧力との
バランスにより炊飯器の内部圧力を所定の圧力に設定す
る調圧装置を設けてなる炊飯器において、上記調圧装置
に取付けた制振部材の一部を上記の調圧ボールに接触又
は接近させ、該調圧ボールの振動を抑制するようにした
ものである。In order to solve the above-mentioned problems, the present invention places a pressure-regulating ball on a valve hole provided in the middle of a steam passage, and adjusts the self-weight of the pressure-regulating ball and the steam pressure. In a rice cooker provided with a pressure adjusting device for setting the internal pressure of the rice cooker to a predetermined pressure depending on the balance, a part of the damping member attached to the pressure adjusting device is brought into contact with or close to the pressure adjusting ball, The vibration of the pressure regulating ball is suppressed.
【０００６】上記の構成によると、加圧炊飯時に調圧ボ
ールが振動すると、制振部材に当接して振動が抑制され
る結果、騒音が減衰される。According to the above construction, when the pressure regulating ball vibrates during pressure cooked rice, it abuts against the vibration damping member and the vibration is suppressed. As a result, noise is attenuated.
【０００７】上記の調圧装置は、上記の調圧ボールを収
納する調圧室カバーを有し、上記制振部材をゴム部材に
より形成し、該制振部材を上記調圧室カバーに取付けた
構成を採用することができる。The pressure regulating device has a pressure regulating chamber cover for accommodating the pressure regulating balls, the vibration damping member is formed of a rubber member, and the vibration damping member is attached to the pressure regulating chamber cover. A configuration can be adopted.
【０００８】また、上記の制振部材としては、次のよう
な構成をとることができる。即ち、
（１）上記の調圧室カバーの上面部に取付けられる取付
け部と、その取付け部の両端部から上記調圧ボールの両
側に沿って下方に伸びる制振部と、各制振部の下部に設
けられた係止部とにより形成し、上記制振部の下方に至
るに従い外方に広がる傾斜を付与し、上記係止部を上記
調圧室カバーの下部に係合した構成。
（２）円弧状にわん曲した制振部と、そのわん曲凸面の
中央部に設けた取付け部とにより形成し、該取付け部を
上記調圧カバーの上面部に取付け、上記制振部を上記調
圧ボールの上面に対向させた構成。
（３）円弧状にわん曲した制振部と、その両端部に設け
た取付け部とにより形成し、各取付け部を上記調圧室カ
バーの対向した側面部に取付け、上記制振部のわん曲凹
面を上記調圧ボールの上面に対向させた構成。
（４）上記の制振部材を左右一対の部材により形成し、
各制振部材を、取付け部と制振部とにより形成し、各取
付け部を上記調圧室カバーの両側にそれぞれ取付け、各
制振部を上記調圧ボールの両側に対向させた構成。The vibration damping member may have the following structure. That is, (1) a mounting portion mounted on the upper surface of the pressure regulating chamber cover, a vibration damping portion extending downward from both ends of the mounting portion along both sides of the pressure regulating ball, and a damping portion of each vibration damping portion. And a locking portion provided on a lower portion of the pressure regulation chamber cover. (2) It is formed by a vibration damping portion curved in an arc shape and a mounting portion provided at the center of the curved convex surface, and the mounting portion is mounted on the upper surface portion of the pressure regulating cover, and the vibration damping portion is formed. A structure facing the upper surface of the pressure regulating ball. (3) Formed by a vibration damping part curved in an arc shape and mounting parts provided at both ends thereof, each mounting part is mounted on the opposite side surface part of the pressure regulation chamber cover, and the vibration damping part is bent. A structure in which a curved concave surface faces the upper surface of the pressure regulating ball. (4) The vibration damping member is formed by a pair of left and right members,
Each damping member is formed of a mounting portion and a damping portion, each mounting portion is mounted on both sides of the pressure regulating chamber cover, and each damping portion is opposed to both sides of the pressure regulating ball.
【０００９】なお、以上は調圧装置における騒音減衰手
段であるが、これに加えて、該調圧装置よりも蒸気通路
出口側に、通路の絞り部と拡大部とからなる消音装置を
設けた構成を採用することができる。この構成による
と、消音装置が調圧装置より出口側にあるので、調圧装
置における前記の制振部材による騒音減衰効果に加え、
消音装置の消音効果により、炊飯器の蒸気通路における
騒音を一層効果的に減衰させることができる。The above is the noise attenuating means in the pressure regulator, but in addition to this, a muffler comprising a narrowed portion and an enlarged portion of the passage is provided on the steam passage outlet side of the pressure regulator. A configuration can be adopted. According to this configuration, since the silencer is located on the outlet side of the pressure regulator, in addition to the noise damping effect of the vibration damping member in the pressure regulator,
Due to the muffling effect of the muffling device, noise in the steam passage of the rice cooker can be more effectively attenuated.
【００１０】[0010]
【発明の実施の形態】以下、この発明の実施形態を図面
に基づいて説明する。図１に示した第１実施形態の炊飯
ジャーは、開閉自在に取付けられた蓋１を有する。この
蓋１は、蓋本体２の上部に蓋上板３を嵌着すると共に、
蓋本体２の下面に放熱板セット４を着脱自在に取付けた
ものであり、蓋フック５によりジャー本体６に係合され
る。また、放熱板セット４は放熱板フック７により蓋本
体２に係合される。上記の放熱板セット４は、蓋本体２
の内部に装着された蓋ヒーター（図示省略）の熱をジャ
ー本体６の炊飯鍋８側に放熱するために設けられる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The rice cooker of the first embodiment shown in FIG. 1 has a lid 1 attached so as to be openable and closable. In this lid 1, a lid top plate 3 is fitted on an upper portion of a lid body 2, and
A radiator plate set 4 is detachably attached to the lower surface of the lid body 2, and is engaged with the jar body 6 by a lid hook 5. The heat sink plate set 4 is engaged with the lid body 2 by the heat sink plate hook 7. The heat dissipation plate set 4 is the lid body 2
It is provided in order to radiate the heat of the lid heater (not shown) mounted inside the jar body 6 to the rice cooking pot 8 side of the jar body 6.
【００１１】上記の放熱板セット４、蓋本体２及び蓋上
板３により蒸気通路９が形成される。蒸気通路９の入口
となる蒸気口１１は放熱板セット４に設けられ、蒸気通
路９の出口となる蒸気孔１２が蓋上板３に設けられる。A steam passage 9 is formed by the heat dissipation plate set 4, the lid body 2 and the lid upper plate 3. A steam port 11 serving as an inlet of the steam passage 9 is provided in the radiator plate set 4, and a steam hole 12 serving as an outlet of the steam passage 9 is provided in the lid upper plate 3.
【００１２】上記の蒸気通路９の内部において、蒸気口
１１の近くに調圧装置１３が組み込まれる。また、その
調圧装置１３の出側におねば除去装置１４が設けられ、
そのおねば除去装置１４と蒸気孔１２との間に消音装置
１５が設けられる。Inside the steam passage 9, a pressure adjusting device 13 is installed near the steam port 11. In addition, a stripping device 14 is provided on the outlet side of the pressure adjusting device 13,
A muffler 15 is provided between the shaving device 14 and the steam hole 12.
【００１３】調圧装置１３は、前記の蒸気口１１の上方
に設けられた弁座部材１６と、その上部に設けられた調
圧室カバー１７と、調圧ボール１８、及びソレノイド１
９とにより構成される。上記の弁座部材１６、調圧室カ
バー１７は放熱板セット４に設けられ、ソレノイド１９
は蓋本体２に設けられる。上記の弁座部材１６と調圧室
カバー１７との間に調圧室２１が形成され、その弁座部
材１６に弁孔２２が形成される。調圧ボール１８は調圧
室２１に収納され、調圧室カバー１７との間に所要の隙
間をおき、通常は弁孔２２の周りに形成された案内リブ
２３により弁孔２２を閉塞する安定位置にある。The pressure adjusting device 13 includes a valve seat member 16 provided above the steam port 11, a pressure adjusting chamber cover 17 provided above the valve seat member 16, a pressure adjusting ball 18, and a solenoid 1.
9 and 9. The valve seat member 16 and the pressure regulation chamber cover 17 are provided in the heat dissipation plate set 4, and the solenoid 19
Is provided on the lid body 2. A pressure adjusting chamber 21 is formed between the valve seat member 16 and the pressure adjusting chamber cover 17, and a valve hole 22 is formed in the valve seat member 16. The pressure-regulating ball 18 is housed in the pressure-regulating chamber 21, has a required gap between the pressure-regulating chamber 21 and the pressure-regulating chamber cover 17, and normally stabilizes the valve hole 22 by a guide rib 23 formed around the valve hole 22. In position.
【００１４】上記のソレノイド１９の先端部が調圧室２
１のスリット２４（図２参照）から内部に挿入され、そ
の先端が調圧ボール１８の中心に向け接近して設けてい
る。調圧作用が不要な場合においては、ソレノイド１９
を調圧室２１の内方に向け突き出すことにより、調圧ボ
ール１８を案内リブ２３上に押し上げ、弁孔２２を開放
する。調圧作用を行わせる場合には、逆にソレノイド１
９を外方に後退させ、調圧ボール１８を弁孔２２上に戻
す。調圧作用は、調圧ボール１８の自重と、弁孔２２の
部分に作用する蒸気圧力のバランスにより行われる。The tip of the solenoid 19 is the pressure adjusting chamber 2
It is inserted from the slit 24 (see FIG. 2) of No. 1 and the tip thereof is provided close to the center of the pressure regulating ball 18. When the pressure regulating action is unnecessary, the solenoid 19
Is pushed inward of the pressure adjusting chamber 21, the pressure adjusting ball 18 is pushed up onto the guide rib 23, and the valve hole 22 is opened. On the contrary, when the pressure regulating action is performed, the solenoid 1
9 is retracted outward, and the pressure regulating ball 18 is returned onto the valve hole 22. The pressure adjusting action is performed by the balance between the weight of the pressure adjusting ball 18 and the steam pressure acting on the valve hole 22.
【００１５】このとき、前述の「従来の技術」の項で説
明したように、調圧ボール１８の振動により騒音が発生
するが、これを抑制する制振構造については後述する。At this time, as described in the above-mentioned "Prior Art", noise is generated by the vibration of the pressure regulating ball 18, but a vibration damping structure for suppressing this will be described later.
【００１６】前記のおねば除去装置１４は、サイクロン
室２５と、サイクロンキャップ２６とにより構成され
る。サイクロン室２５は、その内周壁に接線方向に開放
された吹き込み口３０が設けられる。サイクロンキャッ
プ２６は、サイクロン室２５の上面に嵌着されてこれを
閉塞する閉塞板２７と、その閉塞板２７を貫通して下方
に伸びる排気筒２８とからなる。閉塞板２７の上面に排
気筒２８と同芯の消音装置１５用の入口筒２９が上向き
に一体に設けられる。閉塞板２７の上面において、入口
筒２９の側方に側方案内筒３１が設けられる。The above-mentioned strip removing device 14 comprises a cyclone chamber 25 and a cyclone cap 26. The cyclone chamber 25 is provided with a blow port 30 that is open in the tangential direction on the inner peripheral wall thereof. The cyclone cap 26 includes a closing plate 27 that is fitted on the upper surface of the cyclone chamber 25 to close the same, and an exhaust pipe 28 that penetrates the closing plate 27 and extends downward. On the upper surface of the closing plate 27, an inlet cylinder 29 for the silencer 15 which is concentric with the exhaust cylinder 28 is integrally provided upward. On the upper surface of the blocking plate 27, a side guide cylinder 31 is provided on the side of the inlet cylinder 29.
【００１７】上記のサイクロン室２５にサイクロンキャ
ップ２６を被せることにより、前記のおねば除去装置１
４が構成される。このおねば除去装置１４において、吹
き込み口３０からおねば混じりの蒸気が吹き込まれる
と、周壁の内面に沿う旋回が生じ、サイクロン作用によ
り気液分離が行われ、おねばと蒸気が分離される。分離
された蒸気は排気筒２８を通り入口筒２９を経て消音装
置１５に吹き出される。By covering the above cyclone chamber 25 with the cyclone cap 26, the above-mentioned stick removing device 1
4 are configured. In this stick removal device 14, when steam mixed with stick is blown from the blowing port 30, swirling occurs along the inner surface of the peripheral wall, and gas-liquid separation is performed by the cyclone action, so that stick and steam are separated. The separated vapor passes through the exhaust pipe 28 and the inlet pipe 29 and is blown to the muffler 15.
【００１８】消音装置１５は、前記のサイクロンキャッ
プ２６と、その閉塞板２７上に被せられた蒸気マフラー
３２とにより構成される。蒸気マフラー３２は上端閉塞
の円筒形をなし、中央部に下端開放の中央案内筒３３が
設けられる。また、その中央案内筒３３と周壁３４との
間の上端閉塞面に、上下両端が開放されたマフラー排気
筒３５が設けられる。上記の周壁３４の下端縁が閉塞板
２７の外周縁に着脱自在に嵌合される。中央案内筒３３
は前記の入口筒２９の外側に嵌合され、またマフラー排
気筒３５は前記の側方案内筒３１の内側に嵌合される。The muffler 15 is composed of the cyclone cap 26 and the steam muffler 32 covered on the closing plate 27 thereof. The steam muffler 32 has a cylindrical shape with an upper end closed, and a central guide tube 33 with an open lower end is provided at the center. Further, a muffler exhaust pipe 35 whose upper and lower ends are opened is provided on the upper end closed surface between the central guide cylinder 33 and the peripheral wall 34. The lower end edge of the peripheral wall 34 is detachably fitted to the outer peripheral edge of the closing plate 27. Central guide tube 33
Is fitted to the outside of the inlet pipe 29, and the muffler exhaust pipe 35 is fitted to the inside of the side guide pipe 31.
【００１９】上記の中央案内筒３３と入口筒２９の上下
方向の間隔、両者の半径方向の間隔、及び中央案内筒３
３の下端と閉塞板２７の上面との間隔は、蒸気の通過に
支障を来さない範囲で狭い断面積をもつように形成さ
れ、蒸気の通路を縮小させる第１の絞り部３６となって
いる。The vertical gap between the central guide cylinder 33 and the inlet cylinder 29, the radial distance between them, and the central guide cylinder 3
The interval between the lower end of 3 and the upper surface of the closing plate 27 is formed to have a narrow cross-sectional area within a range that does not hinder the passage of steam, and serves as a first throttle portion 36 that reduces the steam passage. There is.
【００２０】中央案内筒３３の外周面と周壁３４の内周
面との間に広い空間が形成され、この部分が拡大部３７
となっている。前記の絞り部３６は、中央案内筒３３の
下端部において拡大部３７に連通される。A wide space is formed between the outer peripheral surface of the central guide cylinder 33 and the inner peripheral surface of the peripheral wall 34, and this portion is the enlarged portion 37.
Has become. The narrowed portion 36 is communicated with the enlarged portion 37 at the lower end portion of the central guide cylinder 33.
【００２１】また、前記の側方案内筒３１の上端と蒸気
マフラー３２の上端壁面との間隔、側方案内筒３１とマ
フラー排気筒３５の半径方向の間隔、マフラー排気筒３
５の下端と閉塞板２７の上面との間隔は、蒸気の通過に
支障を来さない範囲で狭い断面積をもつように形成さ
れ、蒸気の通路を縮小させる第２の絞り部３８となって
いる。The distance between the upper end of the side guide cylinder 31 and the upper wall surface of the steam muffler 32, the radial distance between the side guide cylinder 31 and the muffler exhaust pipe 35, the muffler exhaust pipe 3
The interval between the lower end of the plate 5 and the upper surface of the closing plate 27 is formed to have a narrow cross-sectional area within a range that does not hinder the passage of steam, and serves as a second throttle portion 38 that reduces the passage of steam. There is.
【００２２】次に、前記の調圧装置１３における調圧ボ
ール１８の制振構造について説明する。図３に示すよう
に、調圧室カバー１７にゴム製の制振部材４２が取付け
られる。この制振部材４２は、全体として一定幅をな
し、下向きコの字状の左右対称形に屈曲形成されたもの
である。中央部が水平の取付け部４３となり、その両端
部から若干外広がりに傾斜した制振部４４、４４が形成
され、各制振部４４、４４の下端部に上向きに屈曲した
係止部４６、４６が形成される。上記の各制振部４４、
４４は、図４（ｅ）（ｆ）に示すように、後方（ソレノ
イド１９の位置と反対方向）に向けて狭くなるように、
傾斜角θが付けられる。Next, the vibration control structure of the pressure control ball 18 in the pressure control device 13 will be described. As shown in FIG. 3, a rubber damping member 42 is attached to the pressure regulation chamber cover 17. The damping member 42 has a constant width as a whole and is bent and formed in a left-right symmetrical shape having a downward U-shape. The central portion serves as a horizontal mounting portion 43, and damping portions 44, 44 are formed from both ends thereof so as to incline slightly outward, and locking portions 46 bent upward are provided at the lower ends of the damping portions 44, 44. 46 is formed. Each of the above-mentioned vibration damping units 44,
As shown in FIGS. 4 (e) and 4 (f), 44 is narrowed toward the rear (the direction opposite to the position of the solenoid 19),
A tilt angle θ is attached.
【００２３】上記の制振部材４２は、その取付け部４３
が調圧室カバー１７の上面に左右方向に沿わされ、その
両端部と制振部４４との間の屈曲部分が調圧室カバー１
７に設けた一対のスリット４７、４７（図３参照）に挿
通され、各制振部４４が調圧室カバー１７の内面から若
干の隙間をおいて斜めに配置される。各制振部４４の下
端部の係止部４６が、調圧室カバー１７の下端部に設け
られた下向きの係合凹所４８に係合される。The damping member 42 has a mounting portion 43.
Is laid along the upper surface of the pressure regulation chamber cover 17 in the left-right direction, and the bent portion between both ends of the pressure regulation chamber cover 17 and the vibration damping portion 44 is covered by the pressure regulation chamber cover 1.
7 are inserted into the pair of slits 47, 47 (see FIG. 3), and the respective damping portions 44 are obliquely arranged with a slight gap from the inner surface of the pressure regulation chamber cover 17. The locking portion 46 at the lower end portion of each damping portion 44 is engaged with the downward engaging recess 48 provided at the lower end portion of the pressure regulation chamber cover 17.
【００２４】前記の弁孔２２を閉塞した状態の調圧ボー
ル１８は、前記の制振部４４の内面に対し、図３に示す
ように接触するか、又は接近する。また、図４（ｃ）に
示すように、両側の制振部４４、４４は上方に向かって
狭くなっているので、調圧ボール１８の上向きの運動を
緩衝する作用を行う。また、前述のように、制振部４
４、４４も傾斜角θで後方に向かって狭くなっているの
で、調圧ボール１８の後方向きの運動を緩衝する作用を
行う。The pressure regulating ball 18 with the valve hole 22 closed is brought into contact with or close to the inner surface of the vibration damping portion 44 as shown in FIG. Further, as shown in FIG. 4 (c), since the damping portions 44, 44 on both sides are narrowed upward, they serve to buffer the upward movement of the pressure regulating ball 18. In addition, as described above, the vibration damping unit 4
Since 4 and 44 are also narrowed rearward at the inclination angle θ, they serve to buffer the backward movement of the pressure regulating ball 18.
【００２５】第１実施形態の炊飯ジャーは以上のように
構成され、次にその作用について説明する。炊飯の当初
はソレノイド１９が内方に突き出して調圧ボール１８を
案内リブ２３上に移動させ、弁孔２２を開放する。炊飯
の進行により蒸発が生じる時期にソレノイド１９を後退
させると、調圧ボール１８がその自重でもとの状態に戻
り、弁孔２２を閉塞する。弁孔２２の部分に作用する蒸
気圧力が一定以上に達すると、その圧力で調圧ボール１
８を押し上げて弁孔２２を開放する。その開放により蒸
気圧力が低下すると調圧ボール１８が再び弁孔２２を閉
塞する。その閉塞により蒸気圧力が再び上昇すると、調
圧ボール１８を押し上げる。このような調圧作用を繰返
し、炊飯鍋８の内部を一定の加圧状態に維持して炊飯を
行う。The rice cooker of the first embodiment is constructed as described above, and its operation will be described below. At the beginning of rice cooking, the solenoid 19 projects inward to move the pressure adjusting ball 18 onto the guide rib 23 and open the valve hole 22. When the solenoid 19 is retracted at the time when evaporation occurs due to the progress of cooking rice, the pressure regulating ball 18 returns to its original state by its own weight, and the valve hole 22 is closed. When the vapor pressure acting on the valve hole 22 reaches a certain level or more, the pressure regulates the ball 1
8 is pushed up to open the valve hole 22. When the steam pressure decreases due to the opening, the pressure regulating ball 18 closes the valve hole 22 again. When the steam pressure rises again due to the blockage, the pressure regulating ball 18 is pushed up. By repeating such a pressure adjusting action, rice is cooked while maintaining the inside of the rice cooking pot 8 at a constant pressure.
【００２６】上記の調圧作用により調圧ボール１８が振
動した場合、調圧ボール１８はゴム製の制振部材４２の
制振部４４、４４に当接してその振動が抑制される。When the pressure-regulating ball 18 vibrates due to the above-mentioned pressure-regulating action, the pressure-regulating ball 18 comes into contact with the vibration damping portions 44, 44 of the rubber vibration damping member 42 to suppress the vibration.
【００２７】上記の調圧装置１３から出た蒸気は、おね
ば除去装置１４に入り、前述のサイクロン作用によりお
ねばが分離される。おねばはサイクロン室２５内に滞留
し、蒸気は排気筒２８を通って消音装置１５に入る。消
音装置１５に入った蒸気は、第１の絞り部３６を通過し
て拡大部３７に入り、さらに第２の絞り部３８を通り、
マフラー排気筒３５、蒸気孔１２を経て外部に放出され
る。The steam discharged from the pressure adjusting device 13 enters the bed removing device 14 and is separated by the cyclone action. The sleeper stays in the cyclone chamber 25, and the steam enters the silencer 15 through the exhaust pipe 28. The steam that has entered the silencer 15 passes through the first throttle portion 36, enters the expansion portion 37, and further passes through the second throttle portion 38,
It is discharged to the outside through the muffler exhaust pipe 35 and the steam holes 12.
【００２８】消音装置１５には炊飯器の内部で発生する
音、調圧装置１３，おねば除去装置１４等で発生する音
が蒸気と同じ経路で通過して外部に放出されるが、各絞
り部３６、３８、及びその途中の拡大部３７を通過する
間に圧力損失をうけて、騒音レベルが低下する。In the muffler 15, the sound generated inside the rice cooker, the sound generated by the pressure regulator 13, the bed remover 14, etc. pass through the same path as the steam and is emitted to the outside. The noise level decreases due to the pressure loss while passing through the portions 36 and 38 and the enlarged portion 37 in the middle thereof.
【００２９】上記の制振部材４２及び消音装置１５の消
音効果を確認するために、上記の第１実施形態と同じ構
造の制振部材４２及び消音装置１５で実験した結果を次
に示す。In order to confirm the muffling effect of the vibration damping member 42 and the muffling device 15, the following is the result of an experiment conducted with the vibration damping member 42 and the muffling device 15 having the same structure as the first embodiment.
【００３０】〔実験条件〕
１．８リットル炊きのＩＨ型炊飯ジャーに３０００ｍｌ
の水を入れて沸騰させた。この時の蒸気孔１２近辺にお
ける騒音を、以下の実施品を用いて計測した。[Experimental conditions] 3000 ml in an IH type rice jar of 1.8 liters cooked
Boiled with water. The noise around the steam holes 12 at this time was measured using the following products.
【００３１】（１）従来品：制振部材４２、消音装置１
５共に装備せず
（２）本発明品Ａ：制振部材４２装備
（３）本発明品Ｂ：制振部材４２、消音装置１５共に装
備(1) Conventional product: damping member 42, silencer 1
5 Not equipped with both (2) Product A of the present invention: Equipment for damping member 42 (3) Product B of the present invention: Equipment for both damping member 42 and silencer 15
【００３２】[0032]
【表１】 [Table 1]
【００３３】次に、調圧ボール１８のその他の制振構造
について説明する。図５（ａ）に示した第２実施形態の
制振部材４２は、わん曲した制振部４４と、そのわん曲
凸部側の中央部に設けた取付け部４３とからなる。その
取付け部４３を調圧室カバー１７の上面部の内側に取付
け、わん曲凹面を調圧ボール１８の上面に対向させる。
わん曲した制振部４４の両端部を調圧ボール１８に接触
させる。この接触面に同図（ｂ）のように、小突起４９
を設けて点接触となるようにしてもよい。Next, another damping structure of the pressure regulating ball 18 will be described. The vibration damping member 42 of the second embodiment shown in FIG. 5A is composed of a curved vibration damping portion 44 and a mounting portion 43 provided in the central portion on the curved convex portion side. The mounting portion 43 is mounted inside the upper surface of the pressure regulation chamber cover 17, and the curved concave surface faces the upper surface of the pressure regulation ball 18.
Both ends of the curved damping portion 44 are brought into contact with the pressure regulating ball 18. On this contact surface, as shown in FIG.
May be provided to make point contact.
【００３４】図６（ａ）（ｂ）に示した第３実施形態の
制振部材４２は、半円弧状にわん曲した制振部４４と、
その両端部に設けた取付け部４３とからなる。各取付け
部４３を調圧室カバー１７の対向した側面部に取付け、
制振部４４のわん曲凹面を調圧ボール１８の上半面に接
触させる。The vibration damping member 42 of the third embodiment shown in FIGS. 6A and 6B has a vibration damping portion 44 curved in a semi-circular shape,
It is composed of attachment parts 43 provided at both ends thereof. Attach each mounting portion 43 to the opposite side surfaces of the pressure regulation chamber cover 17,
The curved concave surface of the vibration damping portion 44 is brought into contact with the upper half surface of the pressure regulating ball 18.
【００３５】図７（ａ）（ｂ）に示した第４実施形態の
制振部材４２は、左右一対の組合わせにより形成され
る。各制振部材４２は、平面視ヘの字形に屈曲されて制
振部４４と、その背面中央部に設けられた取付け部４３
とにより形成される。制振部４４の前後両端部が調圧ボ
ール１８の側面に接触される。同図（ｃ）に示したもの
は、中央部から前後方向に伸びた制振部４４がそれぞれ
外方にわん曲しており、そのわん曲凸面が調圧ボール１
８に接触するようになっている。The damping member 42 of the fourth embodiment shown in FIGS. 7A and 7B is formed by a pair of left and right combinations. Each damping member 42 is bent in a V shape in plan view, and a damping portion 44 and a mounting portion 43 provided at the center of the back surface thereof.
It is formed by and. Both front and rear ends of the vibration damping portion 44 are brought into contact with the side surface of the pressure regulating ball 18. In the structure shown in FIG. 7C, the damping portions 44 extending from the central portion in the front-rear direction are each bent outward, and the curved convex surface has the pressure-regulating ball 1
It comes in contact with 8.
【００３６】以上の図５から図７に示した第２実施形態
から第４実施形態の各制振部材４２は、いずれも調圧ボ
ール１８に接触するように配置しているが、接触するこ
となく接近するように配置してもよい。いずれの場合
も、調圧ボール１８が制振部４４に当接して、その振動
が緩和されるので、振動に伴う騒音が抑制される。The damping members 42 of the second to fourth embodiments shown in FIGS. 5 to 7 are arranged so as to come into contact with the pressure regulating ball 18, but they should come into contact with each other. Instead, they may be arranged so as to approach each other. In either case, the pressure-regulating ball 18 comes into contact with the vibration-damping portion 44 to reduce the vibration, so that the noise accompanying the vibration is suppressed.
【００３７】[0037]
【発明の効果】以上のように、この発明によれば、加圧
炊飯に伴う調圧ボールの振動が抑制されるので、その振
動音に伴う騒音が減衰され、静かな炊飯を行うことがで
きる。また、蒸気通路の出側に消音装置を設置する構成
を併用することにより、蒸気通路において発生する全体
の騒音を減衰させることができる。As described above, according to the present invention, since the vibration of the pressure-regulating ball accompanying the pressure-cooked rice is suppressed, the noise accompanying the vibration sound is attenuated, and the rice can be cooked quietly. . Further, by using a structure in which a muffling device is installed on the outlet side of the steam passage, it is possible to reduce the overall noise generated in the steam passage.
【図１】第１実施形態の炊飯ジャー蓋部分の断面図FIG. 1 is a cross-sectional view of a rice jar lid portion of a first embodiment.
【図２】同上の放熱板セットの斜視図FIG. 2 is a perspective view of the heat dissipation plate set mentioned above.
【図３】同上の調圧装置部分の断面図FIG. 3 is a cross-sectional view of the pressure regulator device portion of the above.
【図４】（ａ）同上の制振部材の平面図 （ｂ）同じく制振部材の正面図 （ｃ）同じく制振部材の断面図 （ｄ）同じく制振部材の側面図 （ｅ）（ｂ）図のｅ−ｅ線の断面図 （ｆ）（ｂ）図のｆ−ｆ線の断面図 （ｇ）（ｂ）図のｇ−ｇ線の断面図FIG. 4A is a plan view of the vibration damping member of the above. (B) A front view of the vibration damping member (C) Similarly, a sectional view of the damping member (D) Similarly, a side view of the damping member. (E) Sectional drawing of the ee line of (b) figure (F) Sectional drawing of the ff line of (b) figure (G) Sectional drawing of the gg line of (b) figure
【図５】（ａ）第２実施形態の断面図 （ｂ）第２実施形態の変形例の断面図FIG. 5A is a sectional view of the second embodiment. (B) Sectional drawing of the modification of 2nd Embodiment.
【図６】（ａ）第３実施形態の断面図 （ｂ）（ａ）図のｂ−ｂ線の断面図FIG. 6A is a sectional view of the third embodiment. (B) Sectional drawing of the bb line of (a) figure
【図７】（ａ）第４実施形態の断面図 （ｂ）（ａ）図のｂ−ｂ線の断面図 （ｃ）第４実施形態の変形例の断面図FIG. 7A is a sectional view of the fourth embodiment. (B) Sectional drawing of the bb line of (a) figure (C) Sectional view of a modification of the fourth embodiment.
１ 蓋 ２ 蓋本体 ３ 蓋上板 ４ 放熱板 ５ 蓋フック ６ ジャー本体 ７ 放熱板フック ８ 炊飯鍋 ９ 蒸気通路 １１ 蒸気口 １２ 蒸気孔 １３ 調圧装置 １４ おねば除去装置 １５ 消音装置 １６ 弁座部材 １７ 調圧室カバー １８ 調圧ボール １９ ソレノイド ２１ 調圧室 ２２ 弁孔 ２３ 案内リブ ２４ スリット ２５ サイクロン室 ２６ サイクロンキャップ ２７ 閉塞板 ２８ 排気筒 ２９ 入口筒 ３０ 吹き込み口 ３１ 側方案内筒 ３２ 蒸気マフラー ３３ 中央案内筒 ３４ 周壁 ３５ マフラー排気筒 ３６ 第１の絞り部 ３７ 拡大部 ３８ 第２の絞り部 ３９、３９’ スリット ４１ スリット ４２ 制振部材 ４３ 取付け部 ４４ 制振部 ４６ 係止部 ４７ スリット ４８ 係合凹所 ４９ 小突起 1 lid 2 Lid body 3 lid top plate 4 Heat sink 5 lid hook 6 jar body 7 Heat sink hook 8 rice cooker 9 steam passage 11 Steam port 12 steam holes 13 Pressure regulator 14 Oneba removal equipment 15 silencer 16 valve seat member 17 Pressure regulation chamber cover 18 Pressure regulation ball 19 solenoid 21 Pressure regulation chamber 22 valve hole 23 Guide rib 24 slits 25 cyclone room 26 cyclone cap 27 Block 28 Exhaust stack 29 Inlet tube 30 blow mouth 31 Side guide tube 32 Steam muffler 33 Central guide tube 34 Peripheral wall 35 muffler stack 36 First diaphragm 37 Enlargement 38 Second diaphragm 39, 39 'slit 41 slits 42 Damping member 43 Attachment 44 Vibration control unit 46 Locking part 47 slits 48 engagement recess 49 small protrusions
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山藤 光治 大阪市北区天満１丁目20番５号 象印マ ホービン株式会社内 (56)参考文献 特開 平11−267015（ＪＰ，Ａ) 実開 昭57−183911（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 27/00 103 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuharu Yamato 1-20-5 Tenma, Kita-ku, Osaka City Zojirushi Mahobin Co., Ltd. (56) References JP-A-11-267015 (JP, A) 57-183911 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) A47J 27/00 103
Claims (5)
ールを載せ、その調圧ボールの自重と蒸気圧力とのバラ
ンスにより炊飯器の内部圧力を所定の圧力に設定する調
圧装置を設けてなる炊飯器において、上記の調圧装置
は、上記の調圧ボールを収納する調圧室カバーを有し、
上記調圧室カバーに取付けられる制振部材をゴム部材に
より形成し、上記の制振部材を、上記の調圧室カバーの
上面部に対する取付け部と、その取付け部の両端部から
上記調圧ボールの両側に沿って下方に伸びる制振部と、
各制振部の下部に設けられた係止部とにより形成し、上
記制振部にその下方に至るに従い外方に広がる傾斜を付
与し、上記係止部を上記調圧室カバーの下部に係合し、
該取付け部を上記調圧室カバーの上面部に取付け、上記
制振部を上記調圧ボールに接触又は接近させ、該調圧ボ
ールの振動を抑制するようにしたことを特徴とする炊飯
器。1. A pressure regulating device for mounting a pressure regulating ball on a valve hole provided in the middle of the steam passage, and setting the internal pressure of the rice cooker to a predetermined pressure by balancing the weight of the pressure regulating ball and the steam pressure. in rice cooker comprising providing said pressure regulator
Has a pressure regulation chamber cover for accommodating the pressure regulation ball,
The rubber member is used as the damping member that is attached to the pressure regulation chamber cover.
And the vibration damping member of the pressure regulation chamber cover
From the mounting part to the top surface and both ends of the mounting part
A damping part extending downward along both sides of the pressure regulating ball,
Formed by the locking part provided at the bottom of each damping part,
The vibration damping part has a slope that spreads outward as it goes downward.
The engaging portion is engaged with the lower portion of the pressure regulation chamber cover,
Attach the mounting portion to the upper surface of the pressure regulation chamber cover,
A rice cooker characterized in that a vibration damping portion is brought into contact with or close to the pressure regulating ball to suppress vibration of the pressure regulating ball.
ールを載せ、その調圧ボールの自重と蒸気圧力とのバラ
ンスにより炊飯器の内部圧力を所定の圧力に設定する調
圧装置を設けてなる炊飯器において、上記の調圧装置
は、上記の調圧ボールを収納する調圧室カバーを有し、
上記調圧室カバーに取付けられる制振部材をゴム部材に
より形成し、上記の制振部材を円弧状にわん曲した制振
部と、そのわん曲凸面の中央部に設けた取付け部とによ
り形成し、該取付け部を上記調圧室カバーの上面部に取
付け、上記制振部を上記調圧ボールの上面に対向させて
接触又は接近させ、該調圧ボールの振動を抑制するよう
にしたことを特徴とする炊飯器。2. A pressure regulating valve is provided on a valve hole provided in the middle of the steam passage.
The pressure control ball and the steam pressure
Control to set the internal pressure of the rice cooker to the specified pressure.
In a rice cooker provided with a pressure device,
Has a pressure regulation chamber cover for accommodating the pressure regulation ball,
The rubber member is used as the damping member that is attached to the pressure regulation chamber cover.
More forming a damping unit for damping member is curved in an arcuate shape described above, the Curved formed by a mounting portion provided in a central portion of the convex surface, the upper surface portion of the pressure regulating chamber cover mounting portion the mounting, and the vibration damping portion is opposed to the upper surface of the pressure regulating balls
Contact or approach to suppress vibration of the pressure-adjusting ball
Rice cooker that is characterized by
ールを載せ、その調圧ボールの自重と蒸気圧力とのバラ
ンスにより炊飯器の内部圧力を所定の圧力に設定する調
圧装置を設けてなる炊飯器において、上記の調圧装置
は、上記の調圧ボールを収納する調圧室カバーを有し、
上記調圧室カバーに取付けられる制振部材をゴム部材に
より形成し、上記の制振部材を円弧状にわん曲した制振
部と、その両端部に設けた取付け部とにより形成し、各
取付け部を上記調圧室カバーの側面部に取付け、上記制
振部のわん曲凹面を上記調圧ボールの上面に対向させて
接触又は接近させ、該調圧ボールの振動を抑制するよう
にしたことを特徴とする炊飯器。3. A pressure regulating valve is provided on a valve hole provided in the middle of the steam passage.
The pressure control ball and the steam pressure
Control to set the internal pressure of the rice cooker to the specified pressure.
In a rice cooker provided with a pressure device,
Has a pressure regulation chamber cover for accommodating the pressure regulation ball,
The rubber member is used as the damping member that is attached to the pressure regulation chamber cover.
The vibration damping member is formed by a vibration damping portion curved in an arc shape and mounting portions provided at both ends thereof, and each mounting portion is mounted on a side surface portion of the pressure regulation chamber cover. the Curved concave damping portion is opposed to the upper surface of the pressure regulating balls
Contact or approach to suppress vibration of the pressure-adjusting ball
Rice cooker that is characterized by
ールを載せ、その調圧ボールの自重と蒸気圧力とのバラ
ンスにより炊飯器の内部圧力を所定の圧力に設定する調
圧装置を設けてなる炊飯器において、上記の調圧装置
は、上記の調圧ボールを収納する調圧室カバーを有し、
上記調圧室カバーに取付けられる制振部材をゴム部材に
より形成し、上記の制振部材を左右一対の部材により形
成し、各制振部材を、取付け部と制振部とにより形成
し、各取付け部を上記調圧室カバーの両側にそれぞれ取
付け、各制振部を上記調圧ボールの両側面に対向させて
接触又は接近させ、該調圧ボールの振動を抑制するよう
にしたことを特徴とする炊飯器。4. A pressure regulating valve is provided on a valve hole provided in the middle of the steam passage.
The pressure control ball and the steam pressure
Control to set the internal pressure of the rice cooker to the specified pressure.
In a rice cooker provided with a pressure device,
Has a pressure regulation chamber cover for accommodating the pressure regulation ball,
The rubber member is used as the damping member that is attached to the pressure regulation chamber cover.
More form, the damping member described above was formed by a pair of right and left members, each damping member is formed by the mounting portion and the vibration damping unit, mounted respectively each mounting portion on both sides of the pressure regulating chamber cover, each damping portion to face the both side surfaces of the pressure regulating balls
Contact or approach to suppress vibration of the pressure-adjusting ball
Rice cooker that is characterized by
に、通路の絞り部と拡大部とからなる消音装置を設けた
ことを特徴とする請求項１から４のいずれかに記載の炊
飯器。5. The rice cooker according to any one of claims 1 to 4 , wherein a muffler comprising a narrowed portion and an enlarged portion of the passage is provided on the steam passage outlet side of the pressure regulator. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000151875A JP3522652B2 (en) | 2000-05-23 | 2000-05-23 | rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000151875A JP3522652B2 (en) | 2000-05-23 | 2000-05-23 | rice cooker |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003346729A Division JP3657594B2 (en) | 2003-10-06 | 2003-10-06 | rice cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001327396A JP2001327396A (en) | 2001-11-27 |
| JP3522652B2 true JP3522652B2 (en) | 2004-04-26 |
Family
ID=18657365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000151875A Expired - Fee Related JP3522652B2 (en) | 2000-05-23 | 2000-05-23 | rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3522652B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6745236B2 (en) * | 2016-03-24 | 2020-08-26 | 象印マホービン株式会社 | Cooker |
| CN112535411A (en) * | 2020-12-24 | 2021-03-23 | 珠海格力电器股份有限公司 | Ball valve subassembly and a kind of deep pot lid and electric rice cooker |
-
2000
- 2000-05-23 JP JP2000151875A patent/JP3522652B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001327396A (en) | 2001-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3522652B2 (en) | rice cooker | |
| CN209863470U (en) | Cooking utensil's silencing device and cooking utensil | |
| JP3476745B2 (en) | rice cooker | |
| JP3657594B2 (en) | rice cooker | |
| JP6935091B2 (en) | Cooker | |
| JP2003523597A (en) | Apparatus for reducing and cooling the noise level of components having moving parts | |
| JP7729601B2 (en) | water heater | |
| KR100304830B1 (en) | Muffler with stamped inner plate defining tubes and separation chamber | |
| EP4265290A1 (en) | Continuous positive airway pressure device | |
| JP2010273719A (en) | Rice cooker | |
| JPH0547732U (en) | Fan / filter unit | |
| CN115371104A (en) | Integrated kitchen range head and integrated kitchen range with same | |
| CN114719441B (en) | Gas water heater and shell assembly thereof | |
| JP2500794B2 (en) | How to adjust the air flow rate of a centrifugal blower | |
| CN118794045B (en) | Fume exhaust fan | |
| TWI765737B (en) | Heating cookers and electric pots | |
| JPH0321699Y2 (en) | ||
| JP3631516B2 (en) | Combustion equipment | |
| CN216724160U (en) | Pressure cooking utensil with simple structure | |
| JPS6229795Y2 (en) | ||
| JP4398418B2 (en) | whistle | |
| JPH081348Y2 (en) | Electromagnetic water supply valve | |
| JP5141323B2 (en) | rice cooker | |
| JP2972728B1 (en) | Rice cooker alarm | |
| JP2003102566A (en) | Kitchen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040203 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040204 |
|
| LAPS | Cancellation because of no payment of annual fees |