JP3533863B2 - Pump for electric pot - Google Patents
Pump for electric potInfo
- Publication number
- JP3533863B2 JP3533863B2 JP01348797A JP1348797A JP3533863B2 JP 3533863 B2 JP3533863 B2 JP 3533863B2 JP 01348797 A JP01348797 A JP 01348797A JP 1348797 A JP1348797 A JP 1348797A JP 3533863 B2 JP3533863 B2 JP 3533863B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing member
- insertion hole
- groove
- shaft insertion
- impeller
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Cookers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電動ポット用のポ
ンプに関するものである。TECHNICAL FIELD The present invention relates to a pump for an electric pot.
【０００２】[0002]
【従来の技術】図７には従来例が示してある。ポンプＡ
は２個のケーシング１、２をシール用の隔壁３とＯリン
グ２０を挟み込んだ状態でねじ４により固定して外殻を
構成してある。一方のケーシング１の内部にはモータの
ような駆動手段６の回転軸７が突入してあり、該回転軸
７にマグネット固定板８が取付けてあり、マグネット固
定板８にリング状の駆動用マグネット９が取付けてあ
る。また、他方のケーシング２には吸い込み口１２と吐
出口１０とが設けてあり、また該他方のケーシング２の
内面には連結アーム１３と軸固定部１４とからなる軸支
持部１５を設け、その軸固定部１４に固定軸１６の一端
を固定している。固定軸１６の他端部にはインペラ１７
が回動自在に支持してある。インペラ１７の中心部分に
は軸受け部材１８が設けられ、該軸受け部材１８の他端
部は半球状になってシール用の隔壁３に接触している。
インペラ１７の内部には従動用マグネット１９が埋設し
てあり、モータのような駆動手段６の回転軸７とインペ
ラは駆動用マグネット９と従動用マグネット１９により
磁気結合されている。2. Description of the Related Art FIG. 7 shows a conventional example. Pump A
Has two casings 1 and 2 fixed by screws 4 with a partition wall 3 for sealing and an O-ring 20 sandwiched therebetween to form an outer shell. A rotating shaft 7 of a driving means 6 such as a motor is projected into the inside of one casing 1, a magnet fixing plate 8 is attached to the rotating shaft 7, and a ring-shaped driving magnet is attached to the magnet fixing plate 8. 9 is attached. Further, the other casing 2 is provided with a suction port 12 and a discharge port 10, and the inner surface of the other casing 2 is provided with a shaft support portion 15 including a connecting arm 13 and a shaft fixing portion 14, One end of a fixed shaft 16 is fixed to the shaft fixing portion 14. An impeller 17 is attached to the other end of the fixed shaft 16.
Is rotatably supported. A bearing member 18 is provided at the center of the impeller 17, and the other end of the bearing member 18 is in the shape of a hemisphere and is in contact with the partition wall 3 for sealing.
A driven magnet 19 is embedded inside the impeller 17, and the rotating shaft 7 of the driving means 6 such as a motor and the impeller are magnetically coupled by the driving magnet 9 and the driven magnet 19.
【０００３】上記のような構成の電動ポット用のポンプ
Ａは、出湯釦を押せばモータのような駆動手段６が回転
し、磁気的に結合されたインペラ１７が回転することに
より湯が吸い込み口１２から吐出口１０を通して出湯す
るものである。図７の矢印は湯の流れを示している。In the pump A for an electric pot having the above-mentioned structure, when the tap button is pressed, the driving means 6 such as a motor is rotated and the magnetically coupled impeller 17 is rotated to suck hot water. The hot water is discharged from 12 through the discharge port 10. The arrow in FIG. 7 indicates the flow of hot water.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記のよう
な構造の電動ポット用のポンプＡを長期間使用している
と、水の中に含まれる微細な不純物やミネラル分がポン
プＡの内部の回転部に付着堆積し（いわゆる水垢となっ
て付着堆積し）、動作不能となる不良が発生するという
問題があった。However, when the pump A for the electric pot having the above-mentioned structure is used for a long period of time, fine impurities and minerals contained in the water are generated inside the pump A. There is a problem in that a defect that becomes adhered and deposited on the rotating part (so-called scale and adheres and accumulates) and becomes inoperable occurs.
【０００５】そこで、上記動作不良の対策として、回転
部のギャップを大きく取っている（つまり軸受け部材１
８の軸挿入孔１８ａ（図８参照）の内面部と、この軸挿
入孔１８ａに挿入される固定軸１６の外面部とのギャッ
プを大きっている）が、このように回転部のギャップを
大きく取ると、インペラ１７の振れが大きくなり、イン
ペラ１７の振れによって騒音が大きくなるという問題が
ある。Therefore, as a countermeasure against the above-mentioned malfunction, the gap of the rotating portion is made large (that is, the bearing member 1).
8 has a large gap between the inner surface of the shaft insertion hole 18a (see FIG. 8 ) and the outer surface of the fixed shaft 16 inserted into the shaft insertion hole 18a). If it is set large, the runout of the impeller 17 becomes large, and the runout of the impeller 17 causes a large noise.
【０００６】本発明は上記の従来例の問題点に鑑みて発
明したものであって、回転部のギャップを従来のように
大きくしなくても水垢により動作不能となるようなこと
がなく、また、騒音を抑制することができる電動ポット
用のポンプを提供することを課題とするものである。The present invention has been made in view of the above-mentioned problems of the conventional example, and does not become inoperable due to water stains even if the gap of the rotating portion is not increased as in the conventional case. An object of the present invention is to provide a pump for an electric pot that can suppress noise.
【０００７】[0007]
【課題を解決するための手段】上記従来例の問題点を解
決して本発明の課題を達成するために、本発明は、イン
ペラ１７の軸受け部材１８の軸挿入孔１８ａの内面部に
水垢逃げ用の溝１８ｂを設けた電動ポット用のポンプＡ
において、両端部が開口した筒状の軸受け部材１８の軸
挿入孔１８ａの内面部に軸方向にわたって両端部が軸受
け部材１８の両開口端部においてそれぞれ開口するよう
に溝１８ｂを設けて成ることを特徴とするものである。
このような構成とすることで、軸受け部材１８の軸挿入
孔１８ａの内面部と固定軸１６の外面部との間のギャッ
プに浸入又は生成した水垢が回転により水垢逃げ用の溝
１８ｂに押しやられて逃がされることでギャップが確保
され、この結果回転不能となるような事態を招かないよ
うにできるものであり、溝１８ｂの両端部の開口から外
部にいっそう効果的に逃がすことができるものである。 Means for Solving the Problems] With the above-mentioned problems with the prior art in order to achieve the object of the present invention, the present invention is, in
Pump A for an electric pot, in which a groove 18b for escape of scale is provided in the inner surface of the shaft insertion hole 18a of the bearing member 18 of the peller 17.
The shaft of the tubular bearing member 18 with both ends open
Both ends of the insertion hole 18a are axially supported on the inner surface of the insertion hole 18a.
So that they are opened at both open ends of the bracket member 18, respectively.
It is characterized in that the groove 18b is provided in the.
With such a configuration, the scale that has entered or generated in the gap between the inner surface portion of the shaft insertion hole 18a of the bearing member 18 and the outer surface portion of the fixed shaft 16 is pushed to the scale escape groove 18b by the rotation. gap is ensured by escapes Te state, and are not able to not to cause a situation such that a result nonrotatable, out of the opening at both ends of the groove 18b
It can be released more effectively to the club.
【０００８】また、インペラ１７の軸受け部材１８の軸
挿入孔１８ａの内面部に溝１８ｂが１つ設けてあること
が好ましい。このような構成とすることで、簡単な構成
でギャップの水垢を逃がすことができるものである。Further, it is preferable that one groove 18b is provided in the inner surface portion of the shaft insertion hole 18a of the bearing member 18 of the impeller 17. With such a structure, it is possible to release the water stains in the gap with a simple structure.
【０００９】また、インペラ１７の軸受け部材１８の軸
挿入孔１８ａの内面部の複数箇所に溝１８ｂが設けてあ
ることが好ましい。このような構成とすることで、軸受
け部材１８の軸挿入孔１８ａの内面部と固定軸１６の外
面部との間のギャップに浸入又は生成した水垢を効果的
に逃がすことができるものである。Further, it is preferable that grooves 18b are provided at a plurality of positions on the inner surface of the shaft insertion hole 18a of the bearing member 18 of the impeller 17. With such a configuration, it is possible to effectively escape the water scale that has entered or generated in the gap between the inner surface portion of the shaft insertion hole 18a of the bearing member 18 and the outer surface portion of the fixed shaft 16.
【００１０】また、インペラ１７の軸受け部材１８の軸
挿入孔１８ａの内面部の周方向を複数等分した位置にそ
れぞれ内面部の軸方向にわたって端部が軸受け部材１８
の端部において開口するように溝１８ｂを設けてあるこ
とが好ましい。このような構成とすることで、軸受け部
材１８の軸挿入孔１８ａの内面部と固定軸１６の外面部
との間のギャップに浸入又は生成した水垢を回転により
溝１８ｂに押し込んで逃がし、更に溝１８ｂの端部の開
口から外部に効果的に逃がすことができ、しかも、この
場合、周方向において均等に逃がすことができるもので
ある。Further, at the positions where the circumferential direction of the inner surface portion of the shaft insertion hole 18a of the bearing member 18 of the impeller 17 is divided into a plurality of equal parts, the end portions of the bearing member 18 extend in the axial direction of the inner surface portion.
It is preferable that the groove 18b is provided so as to open at the end of the. With such a configuration, the scale that has entered or generated in the gap between the inner surface portion of the shaft insertion hole 18a of the bearing member 18 and the outer surface portion of the fixed shaft 16 is pushed into the groove 18b by the rotation and escaped. It can be effectively released to the outside from the opening at the end of 18b, and in this case, it can be released evenly in the circumferential direction.
【００１１】また、筒状をした軸受け部材１８の一端部
が閉塞され、該閉塞部分１８ｃの外面部が略半球状をし
ており、筒状をした軸受け部材１８の軸挿入孔１８ａの
内面部に軸方向にわたって端部が軸受け部材１８の開口
端部において開口するように溝１８ｂを設けることも好
ましい。このような構成とすることで、片持ち構造の軸
受け部材１８において、軸受け部材１８の軸挿入孔１８
ａの内面部と固定軸１６の外面部との間のギャップに浸
入又は生成した水垢を回転により溝１８ｂに押し込んで
逃がし、更に、溝１８ｂの端部の開口から外部に効果的
に逃がすことができるものである。 Further, one end of the cylindrical bearing member 18 is closed, the outer surface of the closed portion 18c is substantially hemispherical, and the inner surface of the shaft insertion hole 18a of the cylindrical bearing member 18 is closed. It is also preferable to provide the groove 18b so that the end portion opens in the opening end portion of the bearing member 18 over the axial direction. With such a configuration, in the bearing member 18 having a cantilever structure, the shaft insertion hole 18 of the bearing member 18
It is possible to push the water scale, which has infiltrated or generated in the gap between the inner surface portion of a and the outer surface portion of the fixed shaft 16, into the groove 18b by rotation and to escape, and further to effectively escape to the outside from the opening of the end portion of the groove 18b. It is possible.
【００１２】[0012]
【発明の実施の形態】以下本発明を添付図面に示す実施
形態に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.
【００１３】図１、図２には本発明の電動ポット用のポ
ンプＡが示してある。基本的構造は図７に示す従来例と
大略同じである。すなわち、ポンプＡは２個のケーシン
グ１、２をシール用の隔壁３とＯリング２０とを介して
挟んだ状態でねじ４により固定して外殻を構成してあ
る。一方のケーシング１の外部にはモータのような駆動
手段６が取付けてあり、このモータのような駆動手段６
の回転軸７が一方のケーシング１の内部に突入してあ
り、一方のケーシング１内において上記回転軸７にマグ
ネット固定板８が取付けてあり、マグネット固定板８に
リング状の駆動用マグネット９が取付けてある。また、
他方のケーシング２には吸い込み口１２と吐出口１０と
が設けてあり、また該他方のケーシング２の内面には連
結アーム１３と軸固定部１４とからなる軸支持部１５を
設け、その軸固定部１４に固定軸１６の一端を固定して
あり、固定軸１６の他端部はシール用の隔壁３の中央部
に設けた嵌め込み凹所３ａに嵌め込んである。FIGS. 1 and 2 show a pump A for an electric pot according to the present invention. The basic structure is almost the same as the conventional example shown in FIG. That is, the pump A has an outer shell formed by fixing two casings 1 and 2 with a partition wall 3 for sealing and an O-ring 20 interposed therebetween and fixing them with screws 4. A driving means 6 such as a motor is attached to the outside of the one casing 1, and the driving means 6 such as the motor.
Rotating shaft 7 is projected into the inside of one casing 1, a magnet fixing plate 8 is attached to the rotating shaft 7 in one casing 1, and a ring-shaped drive magnet 9 is attached to the magnet fixing plate 8. It is installed. Also,
The other casing 2 is provided with a suction port 12 and a discharge port 10, and the inner surface of the other casing 2 is provided with a shaft support portion 15 including a connecting arm 13 and a shaft fixing portion 14, and the shaft is fixed. One end of the fixed shaft 16 is fixed to the portion 14, and the other end of the fixed shaft 16 is fitted into a fitting recess 3a provided in the central portion of the partition wall 3 for sealing.
【００１４】固定軸１６にはインペラ１７が回動自在に
支持してある。インペラ１７の中心部分の上部と下部と
にはそれぞれ軸受け部材１８が設けられ、該軸受け部材
１８のうちシール用の隔壁３側の軸受け部材１８の端部
はシール用の隔壁３に接触している。インペラ１７の内
部には従動用マグネット１９が埋設してあり、モータの
ような駆動手段６の回転軸７とインペラは駆動用マグネ
ット９と従動用マグネット１９により磁気結合されてい
る。An impeller 17 is rotatably supported on the fixed shaft 16. A bearing member 18 is provided on each of an upper portion and a lower portion of a central portion of the impeller 17, and an end portion of the bearing member 18 on the side of the partition wall 3 for sealing is in contact with the partition wall 3 for sealing. . A driven magnet 19 is embedded inside the impeller 17, and the rotating shaft 7 of the driving means 6 such as a motor and the impeller are magnetically coupled by the driving magnet 9 and the driven magnet 19.
【００１５】そして、本発明においては、上記インペラ
１７の中心に設けた軸受け部材１８の軸挿入孔１８ａの
内面部に水垢逃げ用の溝１８ｂを設けてある。Further, in the present invention, a groove 18b for escape of scale is provided in the inner surface of the shaft insertion hole 18a of the bearing member 18 provided at the center of the impeller 17.
【００１６】しかして、上記のような構造の電動ポット
用のポンプＡは、出湯釦（図示せず）を押せばモータの
ような駆動手段６が回転し、駆動用マグネット９が回転
することで、この駆動用マグネット９に磁気的に結合さ
れた従動用マグネット１９が回転するものであり、この
ことにより従動用マグネット１９を一体に埋設したイン
ペラ１７が回転し、インペラ１７の回転により湯が吸い
込み口１２から吐出口１０を通して出湯するものであ
る。図１の矢印は湯の流れを示している。In the pump A for the electric pot having the above-described structure, when the hot water discharge button (not shown) is pressed, the driving means 6 such as a motor rotates and the driving magnet 9 rotates. The driven magnet 19 magnetically coupled to the driving magnet 9 rotates, whereby the impeller 17 in which the driven magnet 19 is embedded is rotated, and the rotation of the impeller 17 sucks hot water. Hot water is discharged from the mouth 12 through the outlet 10. The arrow in FIG. 1 indicates the flow of hot water.
【００１７】このような電動ポット用のポンプＡにおい
ては、長期間使用していると、水の中に含まれる微細な
不純物やミネラル分が水垢となって軸受け部材１８の軸
挿入孔１８ａの内面部と固定軸１６の外面部との間のギ
ャップに浸入又は生成するが、本発明においては、軸挿
入孔１８ａの内面部に１乃至複数個の水垢逃げ用の溝１
８ｂを形成してあるので、上記軸受け部材１８の軸挿入
孔１８ａの内面部と固定軸１６の外面部との間のギャッ
プに浸入又は生成する水垢が、回転した時に軸挿入孔１
８ａの内面部に形成した溝１８ｂに押しやられて逃げる
ことになり、上記ギャップが確保されてインペラ１７の
動作不良が生じないようにしてある。In such a pump A for an electric pot, when it is used for a long period of time, fine impurities and minerals contained in water become scales, and the inner surface of the shaft insertion hole 18a of the bearing member 18 becomes. It penetrates into or is generated in the gap between the shaft and the outer surface of the fixed shaft 16. However, in the present invention, one or more grooves 1 for escape of scale are formed in the inner surface of the shaft insertion hole 18a.
Since 8b is formed, the water vapor that enters or is generated in the gap between the inner surface portion of the shaft insertion hole 18a of the bearing member 18 and the outer surface portion of the fixed shaft 16 rotates when the shaft insertion hole 1
The groove 18b formed on the inner surface of 8a pushes the groove 8b away, so that the gap is secured and the impeller 17 does not malfunction.
【００１８】すなわち、図２には図１においてインペラ
１７の中心部の上部に設けた軸受け部材１８を示し、図
３には図１においてインペラ１７の中心部の下部に設け
た軸受け部材１８を示している。つまり、図１において
は固定軸１６に対してインペラ１７を両持ち支持するた
めにインペラ１７の中心部の上部と下部とにそれぞれ図
２や図３に示すような両持ち用の軸受け部材１８を設け
たものであり、この両持ち用の軸受け部材１８には一端
部に鍔部１８ｄが設けてあり、この鍔部１８ｄがインペ
ラ１７の上下方向の端部に露出するようにインペラ１７
の孔に嵌め込まれて取付けてある。上記両持ち用の軸受
け部材１８の詳細が図６に示してある。そして、両持ち
用の軸受け部材１８は軸挿入孔１８ａの内面部に軸方向
にわたって形成した水垢逃げ用の溝１８ｂの両端部が軸
受け部材１８の軸挿入孔１８ａの両開口端部においてそ
れぞれ外部に開口しているものである。That is, FIG. 2 shows the bearing member 18 provided above the center of the impeller 17 in FIG. 1, and FIG. 3 shows the bearing member 18 provided below the center of the impeller 17 in FIG. ing. That is, in FIG. 1, in order to support both ends of the impeller 17 with respect to the fixed shaft 16, bearing members 18 for both ends as shown in FIGS. 2 and 3 are provided at the upper part and the lower part of the central part of the impeller 17, respectively. The bearing member 18 for both ends is provided with a flange 18d at one end, and the flange 18d is exposed at the vertical end of the impeller 17 so as to be exposed.
It is attached by being fitted into the hole of. FIG. 6 shows the details of the bearing member 18 for both ends. In the bearing member 18 for both ends, both ends of the groove 18b for escape of water dust formed in the inner surface portion of the shaft insertion hole 18a in the axial direction are exposed to the outside at both open ends of the shaft insertion hole 18a of the bearing member 18, respectively. It is open.
【００１９】したがって、この実施形態においては軸受
け部材１８の軸挿入孔１８ａの内面部と固定軸１６の外
面部との間のギャップに浸入又は生成した水垢が、回転
により溝１８ｂに押しやられて逃がされ、更に該溝１８
ｂの両端部の開口から外部に効果的に逃がされるもので
ある。このように、軸受け部材１８の軸挿入孔１８ａの
内面部と固定軸１６の外面部との間のギャップに浸入又
は生成した水垢を溝１８ｂに逃がすことができるので、
大きな騒音が発生しないように上記軸受け部材１８の軸
挿入孔１８ａの内面部と固定軸１６の外面部との間のギ
ャップをできるだけ小さくしても、上記ギャップ間に水
垢が溜まって動作不良を起こすのが防止できることにな
る。 Therefore, in this embodiment, the scale that has entered or generated in the gap between the inner surface of the shaft insertion hole 18a of the bearing member 18 and the outer surface of the fixed shaft 16 is pushed to the groove 18b by the rotation and escapes. The groove 18
It is effectively released to the outside from the openings at both ends of b. In this way, since the water scale that has entered or generated in the gap between the inner surface of the shaft insertion hole 18a of the bearing member 18 and the outer surface of the fixed shaft 16 can be released to the groove 18b,
Even if the gap between the inner surface of the shaft insertion hole 18a of the bearing member 18 and the outer surface of the fixed shaft 16 is made as small as possible so that a large amount of noise is not generated, water stains accumulate in the gap and cause malfunction. Can be prevented
It
【００２０】ところで、上記した両持ち支持用の軸受け
部材１８、片持ち支持用の軸受け部材１８のいずれにお
いても、軸受け部材１８の軸挿入孔１８ａの内面部に溝
１８ｂを設けるに当たり、該溝１８ｂを１つ設けてもよ
く、あるいは複数個（例えば２個、あるいは図２、図
３、図６のように３個、あるいは図示をしていないが４
個以上）設けてもよいものである。 By the way, in forming the groove 18b in the inner surface portion of the shaft insertion hole 18a of the bearing member 18 in both the bearing member 18 for supporting both ends and the bearing member 18 for supporting cantilever, the groove 18b is provided. One may be provided, or a plurality (for example, two, or three as shown in FIGS. 2, 3, and 6 , or not shown but four)
More than one ) may be provided.
【００２１】ここで、溝１８ｂを１つ設けたものは、簡
単な構造でギャップの水垢を逃がすことができる。ま
た、溝１８ｂを複数個設けたものは、ギャップの水垢を
確実に逃がすことができる。ここで、軸挿入孔１８ａの
内面部に溝１８ｂを複数個設ける場合、図２、図３、図
６等に示すように、軸挿入孔１８ａの内面部の周方向を
複数等分した位置にそれぞれ内面部の軸方向にわたって
端部が軸受け部材１８の端部において開口するように溝
１８ｂを設けるのが好ましものである。このように、軸
挿入孔１８ａの内面部の周方向を複数等分した位置に溝
１８ｂを設けるとで、軸受け部材１８の軸挿入孔１８ａ
の内面部と固定軸１６の外面部との間のギャップに浸入
又は生成した水垢を周方向において均等に効果的に逃が
すことができることになる。Here, with one groove 18b, the water stains in the gap can be released with a simple structure. In addition, if a plurality of grooves 18b are provided, the water stains in the gap can be surely released. Here, when a plurality of grooves 18b are provided on the inner surface portion of the shaft insertion hole 18a, FIG. 2, FIG .
As shown in FIG. 6 and the like, a groove 18b is provided at a position where the circumferential direction of the inner surface portion of the shaft insertion hole 18a is divided into a plurality of equal parts so that the end portion thereof opens at the end portion of the bearing member 18 over the axial direction of the inner surface portion. Is the preferred one. In this way, by providing the groove 18b at the position where the circumferential direction of the inner surface portion of the shaft insertion hole 18a is equally divided, the shaft insertion hole 18a of the bearing member 18 is formed.
It is possible to effectively and effectively disperse the scales that have infiltrated or generated in the gap between the inner surface of the fixed shaft 16 and the outer surface of the fixed shaft 16 in the circumferential direction.
【００２２】[0022]
【発明の効果】本発明の請求項１記載の発明にあって
は、上述のように、インペラの軸受け部材の軸挿入孔の
内面部に水垢逃げ用の溝を設けた電動ポット用のポンプ
において、両端部が開口した筒状の軸受け部材の軸挿入
孔の内面部に軸方向にわたって両端部が軸受け部材の両
開口端部においてそれぞれ開口するように溝を設けてあ
るので、軸受け部材の軸挿入孔の内面部と固定軸の外面
部との間のギャップに浸入又は生成した水垢が回転によ
り垢逃げ用の溝に押しやられて逃がされることでギャッ
プが確保されるものであり、この結果回転不能となるよ
うな事態を招かないようにできるものであり、しかも、
上記のようにギャップに水垢が溜まらないような構造な
ので、従来のようにギャップを大きくする必要がないの
で、騒音を押さえることができるものであり、更に溝の
両端部の開口から外部にいっそう効果的に逃がすことが
できて、ギャップに水垢が溜まらないようにできるもの
である。 According to the first aspect of the present invention, as described above, a pump for an electric pot in which a groove for escape of scale is provided in the inner surface of the shaft insertion hole of the bearing member of the impeller.
Insertion of a cylindrical bearing member with open ends at
Both ends of the bearing member on both sides of the inner surface of the hole in the axial direction.
Since the groove is provided so as to open at the opening end, the water that has entered or generated in the gap between the inner surface of the shaft insertion hole of the bearing member and the outer surface of the fixed shaft is a groove for escaping dirt by rotation. The gap is secured by being pushed to and released by, and as a result, it is possible to prevent the situation that rotation becomes impossible, and moreover,
Since structures like does not collect is of scale in the gap as described above, since the conventional no need to increase the gap to state, and are not able to suppress noise, further groove
More effectively escape from the openings at both ends to the outside
What you can do to prevent the accumulation of scale in the gap
Is.
【００２３】また、請求項２記載の発明にあっては、上
記請求項１記載の発明の効果に加えて、インペラの軸受
け部材の軸挿入孔の内面部に溝が１つ設けてあるので、
簡単な構成でギャップの水垢を逃がすことができるもの
である。Further, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, since one groove is provided in the inner surface portion of the shaft insertion hole of the bearing member of the impeller,
With a simple structure, it is possible to escape the water stains in the gap.
【００２４】また、請求項３記載の発明にあっては、上
記請求項１記載の発明の効果に加えて、インペラの軸受
け部材の軸挿入孔の内面部の複数箇所に溝が設けてある
ので、軸受け部材の軸挿入孔の内面部と固定軸の外面部
との間のギャップに浸入又は生成した水垢を効果的に逃
がすことができるものである。According to the invention of claim 3, in addition to the effect of the invention of claim 1, grooves are provided at a plurality of positions on the inner surface of the shaft insertion hole of the bearing member of the impeller. It is possible to effectively escape the scale that has entered or is generated in the gap between the inner surface of the shaft insertion hole of the bearing member and the outer surface of the fixed shaft.
【００２５】また、請求項４記載の発明にあっては、上
記請求項３記載の発明の効果に加えて、インペラの軸受
け部材の軸挿入孔の内面部の周方向を複数等分した位置
にそれぞれ内面部の軸方向にわたって端部が軸受け部材
の端部において開口するように溝を設けてあるので、軸
受け部材の軸挿入孔の内面部と固定軸の外面部との間の
ギャップに浸入又は生成した水垢を回転により溝に逃が
し、更に、溝の端部の開口から外部に効果的に逃がすこ
とができ、しかも、この場合、周方向においてギャップ
の水垢を均等に逃がすことができて、ギャップに水垢が
溜まらないようにできるものである。According to the invention of claim 4, in addition to the effect of the invention of claim 3, the inner surface of the shaft insertion hole of the bearing member of the impeller is divided into a plurality of positions in the circumferential direction. Since the groove is provided so that the end portion opens at the end of the bearing member in the axial direction of the inner surface portion, respectively, it penetrates into the gap between the inner surface portion of the shaft insertion hole of the bearing member and the outer surface portion of the fixed shaft. The generated scale can be released to the groove by rotation, and further can be effectively released to the outside from the opening at the end of the groove, and in this case, the scale can be released evenly in the circumferential direction, and the gap It is possible to prevent the accumulation of scale.
【００２６】また、請求項５記載の発明にあっては、上
記請求項１又は請求項２又は請求項３記載の発明の効果
に加えて、筒状をした軸受け部材の一端部が閉塞され、
該閉塞部分の外面部が略半球状をしており、筒状をした
軸受け部材の軸挿入孔の内面部に軸方向にわたって端部
が軸受け部材の開口端部において開口するように溝を設
けてあるので、片持ち構造の軸受け部材において、軸受
け部材の軸挿入孔の内面部と固定軸の外面部との間のギ
ャップに浸入又は生成した水垢を回転により溝に押し込
んで逃がし、更に溝の端部の開口から外部に効果的に逃
がすことができて、ギャップに水垢が溜まらないように
できるものである。 According to the invention of claim 5, in addition to the effect of the invention of claim 1, claim 2 or claim 3, one end of the cylindrical bearing member is closed.
An outer surface portion of the closed portion has a substantially hemispherical shape, and a groove is provided in an inner surface portion of a shaft insertion hole of a cylindrical bearing member so that an end portion is opened at an opening end portion of the bearing member in the axial direction. Therefore, in the bearing member having a cantilever structure, the water scale that has infiltrated or generated in the gap between the inner surface portion of the shaft insertion hole of the bearing member and the outer surface portion of the fixed shaft is pushed into the groove by rotation and is released, and further the end of the groove is released. It is possible to effectively let it escape from the opening of the part to the outside and prevent the accumulation of scale in the gap .
【図１】本発明の電動ポット用のポンプの断面図であ
る。FIG. 1 is a cross-sectional view of a pump for an electric pot according to the present invention.
【図２】同上のインペラの上部に設けられる両持ち用の
軸受け部材を示し、（ａ）は平面図であり、（ｂ）は断
面図である。FIG. 2 shows a bearing member for both-ends support provided on the upper part of the impeller, in which (a) is a plan view and (b) is a sectional view.
【図３】同上のインペラの下部に設けられる両持ち用の
軸受け部材を示し、（ａ）は断面図であり、（ｂ）は平
面図である。3A and 3B show a bearing member for supporting both ends provided in the lower portion of the above-mentioned impeller, FIG. 3A is a sectional view, and FIG. 3B is a plan view.
【図４】同上の電動ポット用のポンプの正面図である。FIG. 4 is a front view of a pump for the electric pot of the above.
【図５】同上の電動ポット用のポンプの平面図である。FIG. 5 is a plan view of a pump for the electric pot of the above.
【図６】同上の両持ち用の軸受け部材を示し、（ａ）は
拡大平面図であり、（ｂ）は拡大断面図である。6A and 6B show the bearing member for dual-supporting, and FIG. 6A is an enlarged plan view and FIG. 6B is an enlarged sectional view.
【図７】従来例の電動ポット用のポンプの断面図であ
る。 FIG. 7 is a cross-sectional view of a conventional pump for an electric pot.
It
【図８】従来例の軸受け部材の軸挿入孔を示す拡大平面
図である。 FIG. 8 is an enlarged plan view showing a shaft insertion hole of a conventional bearing member.
It is a figure.
Ａ ポンプ ３ 隔壁 １６ 固定軸 １７ インペラ １８ 軸受け部材 １８ａ 軸挿入孔 １８ｂ 溝 １８ｃ 閉塞部分 A pump 3 partitions 16 fixed axis 17 Impeller 18 Bearing member 18a shaft insertion hole 18b groove 18c Blocked part
フロントページの続き (56)参考文献 特開 昭62−292114（ＪＰ，Ａ) 特開 平６−241186（ＪＰ，Ａ) 実開 平５−77595（ＪＰ，Ｕ) 実開 平７−30397（ＪＰ，Ｕ) 特公 昭50−34241（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 27/21 101 A47J 41/00 303 F04D 13/02 Front page continuation (56) Reference JP 62-292114 (JP, A) JP 6-241186 (JP, A) Actual flat 5-77595 (JP, U) Actual flat 7-30397 (JP , U) Japanese Patent Publication No. 50-34241 (JP, B1) (58) Fields investigated (Int.Cl. 7 , DB name) A47J 27/21 101 A47J 41/00 303 F04D 13/02
Claims (5)
部に水垢逃げ用の溝を設けた電動ポット用のポンプにお
いて、両端部が開口した筒状の軸受け部材の軸挿入孔の
内面部に軸方向にわたって両端部が軸受け部材の両開口
端部においてそれぞれ開口するように溝を設けて成るこ
とを特徴とする電動ポット用のポンプ。1. A pump for an electric pot, wherein an inner surface of a shaft insertion hole of a bearing member of an impeller is provided with a groove for escape of scale .
The shaft insertion hole of the cylindrical bearing member with both ends open.
Both ends of the inner surface are axially open at both ends of the bearing member.
A pump for an electric pot, characterized in that a groove is provided so as to open at each end .
部に溝が１つ設けてあることを特徴とする請求項１記載
の電動ポット用のポンプ。2. A pump for an electric pot according to claim 1, wherein one groove is provided in an inner surface portion of the shaft insertion hole of the bearing member of the impeller.
部の複数箇所に溝が設けてあることを特徴とする請求項
１記載の電動ポット用のポンプ。3. The pump for an electric pot according to claim 1, wherein grooves are provided at a plurality of positions on the inner surface of the shaft insertion hole of the bearing member of the impeller.
部の周方向を複数等分した位置にそれぞれ内面部の軸方
向にわたって端部が軸受け部材の端部において開口する
ように溝を設けて成ることを特徴とする請求項３記載の
電動ポット用のポンプ。4. A groove is provided at a position where the circumferential direction of the inner surface portion of the shaft insertion hole of the bearing member of the impeller is divided into a plurality of equal parts so that the end portion opens at the end portion of the bearing member over the axial direction of the inner surface portion. The pump for an electric pot according to claim 3, wherein
れ、該閉塞部分の外面部が略半球状をしており、筒状を
した軸受け部材の軸挿入孔の内面部に軸方向にわたって
端部が軸受け部材の開口端部において開口するように溝
を設けて成ることを特徴とする請求項１又は請求項２又
は請求項３記載の電動ポット用のポンプ。 5. A cylindrical bearing member is closed at one end thereof, and an outer surface portion of the closed portion has a substantially hemispherical shape, and extends axially in an inner surface portion of a shaft insertion hole of the cylindrical bearing member. The pump for an electric pot according to claim 1, 2, or 3, wherein a groove is provided so that the end portion opens at the opening end portion of the bearing member .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01348797A JP3533863B2 (en) | 1997-01-28 | 1997-01-28 | Pump for electric pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01348797A JP3533863B2 (en) | 1997-01-28 | 1997-01-28 | Pump for electric pot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10201626A JPH10201626A (en) | 1998-08-04 |
| JP3533863B2 true JP3533863B2 (en) | 2004-05-31 |
Family
ID=11834489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01348797A Expired - Fee Related JP3533863B2 (en) | 1997-01-28 | 1997-01-28 | Pump for electric pot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3533863B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6324999B2 (en) * | 2013-12-27 | 2018-05-16 | 株式会社イワキ | Magnet pump |
-
1997
- 1997-01-28 JP JP01348797A patent/JP3533863B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10201626A (en) | 1998-08-04 |
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