JP3864521B2 - Combined washing machine - Google Patents

Combined washing machine Download PDF

Info

Publication number
JP3864521B2
JP3864521B2 JP33840197A JP33840197A JP3864521B2 JP 3864521 B2 JP3864521 B2 JP 3864521B2 JP 33840197 A JP33840197 A JP 33840197A JP 33840197 A JP33840197 A JP 33840197A JP 3864521 B2 JP3864521 B2 JP 3864521B2
Authority
JP
Japan
Prior art keywords
washing
dewatering
bead
dehydrating
gap
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
Application number
JP33840197A
Other languages
Japanese (ja)
Other versions
JPH11169589A (en
Inventor
真二 松岡
一利 足立
俊次 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP33840197A priority Critical patent/JP3864521B2/en
Publication of JPH11169589A publication Critical patent/JPH11169589A/en
Application granted granted Critical
Publication of JP3864521B2 publication Critical patent/JP3864521B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、洗濯、すすぎ、脱水の一連の行程を自動的に行う脱水兼用洗濯機に関する。
【0002】
【従来の技術】
従来、この種の脱水兼用洗濯機は図10に示すよう構成していた。以下、その構成について説明する。
【0003】
図に示すように、外槽1は、底部にパルセータ2を回転自在に配設した洗濯兼脱水槽3を内包し、吊り棒4により洗濯機外枠5に防振支持されている。洗濯兼脱水槽3の内周壁面には多数の通水孔6とビード7を等間隔ピッチで設けている。この構成で、洗濯、すすぎ、脱水の行程を自動的に行うようにしている。
【0004】
しかし、この構成では、洗濯兼脱水槽3の内周壁面の等間隔ピッチの通水孔6およびビード7により、不快な風切り音を発生する。この風切り音は次式に示すように、洗濯兼脱水槽3の回転数と通水孔6およびビード7の個数により決まる一定の周波数音である。
【0005】
f=n×Z
ただし、f:風切り音の周波数 (Hz)
n:洗濯兼脱水槽3の回転周波数(回転数(rpm)/60)(Hz)
Z:等間隔ピッチの通水孔またはビードの個数
この問題を解決するために、図11に示すような、通水孔6を不等間隔ピッチにする構成が提案されている。
【0006】
【発明が解決しようとする課題】
しかし、このような従来の構成では、通水孔6、ビード7が不等間隔ピッチであるため、ピッチの間隔が不均一であり、洗浄性能や脱水性能の悪化を招くという問題を有していた。また、脱水むら、洗濯むらも発生しやすいという問題を有していた。
【0007】
また、洗濯兼脱水槽3の内周壁面は使用者によく目立つ箇所であるため、デザイン的にも好ましくないという問題を有していた。
【0008】
本発明は上記課題を解決するもので、脱水回転時に洗濯兼脱水槽の内側に発生する風切り音を整流し、また、一定の周波数の風切り音を分散させて、全体の騒音値を低減することを目的としている。
【0009】
【課題を解決するための手段】
本発明は上記目的を達成するもので、上下方向に回転中心軸を有する洗濯兼脱水槽の外側に脱水時の水を受ける外槽を位置させ、洗濯兼脱水槽の底部に回転自在にパルセータを配設し、パルセータおよび洗濯兼脱水槽をモータにより駆動する。洗濯兼脱水槽の内周壁面には略回転軸方向に長い複数のビードを突設し、かつ、ビードは上下方向で分割することで、上下のビード間に隙間を形成し、方向において隣り合う隙間が洗濯兼脱水槽の脱水回転方向とは逆方向に進むにつれて上昇する位置に存在するように構成することで、前記回転軸方向に対し傾斜した前記隙間による列を形成するようにしたものである。
【0010】
これにより、脱水回転時に洗濯兼脱水槽の内側に発生する風切り音を、ビード隙間の傾斜に沿って上昇する風の流れを作ることによって整流することができ、また、ビード長さが順次変化していくことで、一定の周波数の風切り音を分散させて、全体の騒音値を低減することができる。
【0011】
【発明の実施の形態】
本発明の請求項1に記載の発明は、上下方向に回転中心軸を有する洗濯兼脱水槽と、この洗濯兼脱水槽の外側に位置し脱水時の水を受ける外槽と、前記洗濯兼脱水槽の底部に回転自在に配設したパルセータと、前記パルセータおよび洗濯兼脱水槽を駆動するモータとを備え、前記洗濯兼脱水槽の内周壁面には略回転軸方向に長い複数のビードを突設し、かつ、前記ビードは上下方向で分割することで、上下のビード間に隙間を形成し、方向において隣り合う隙間が前記洗濯兼脱水槽の脱水回転方向とは逆方向に進むにつれて上昇する位置に存在するように構成することで、前記回転軸方向に対し傾斜した前記隙間による列を形成するようにしたものであり、脱水回転時に洗濯兼脱水槽の内側に発生する風切り音を、ビード隙間の列に沿って上昇する風の流れを作ることによって整流し、また、ビード長さが順次変化していくことで、一定の周波数の風切り音を分散させて全体の騒音値を低減することができる。また、脱水行程での衣類の洗濯兼脱水槽への貼り付きに対し、ビード隙間が衣類と洗濯兼脱水槽間に隙間を形成し、さらにビード隙間による列が脱水時に水の流れる通路となることで脱水効率を向上することができ、また、回転軸方向に縦長のビードを突設し、さらに上下方向でビードを分割することにより、回転軸方向の断面係数が大きくなり、洗濯兼脱水槽のたる型あるいはつづみ型への変形を防止することができ、剛性を向上することができる。
【0012】
請求項2に記載の発明は、上記請求項1に記載の発明において、隙間による列が複数存在するように構成したものであり、脱水回転数に対応した傾斜角度と傾斜本数を設定することができ、さらに効率よく風切り音を低減し、脱水効率を向上することができる。
【0013】
請求項3に記載の発明は、上記請求項1または2に記載の発明において、ビード断面を略三角形状としたものであり、脱水行程において衣類が洗濯兼脱水槽へ貼り付きにくくなり、脱水効率を向上することができるとともに、略三角形状の先端が洗濯板効果となり、洗濯効率を向上することができる。また、略三角形状の勾配を適度に設定することで、脱水回転による風を逃がし、風切り音が発生しにくいようにすることができる。
【0014】
請求項4に記載の発明は、上記請求項1〜3のいずれか1つに記載の発明において、上下方向の分割によるビード相互間の隙間に通水孔を設けたものであり、脱水時に水の流れる通路上に通水孔を増やすことで、脱水効率を向上することができる
【0015】
【実施例】
以下、本発明の実施例について、図面を参照しながら説明する。
【0016】
(実施例1)
図1に示すように、外槽11は、底部にパルセータ12を回転自在に配設した洗濯兼脱水槽13を内包し、吊り棒14により洗濯機外枠15に防振支持されている。モータ16は、減速機構17を介してパルセータ12および洗濯兼脱水槽13を駆動する。
【0017】
洗濯兼脱水槽13の内周壁面には、図2に示すように、略回転軸方向に複数の長いビード18を突設し、かつ、ビード18は上下方向で分割するとともに、この分割部分の相互間に隙間18aを形成し、水平方向において隣り合う隙間18aが洗濯兼脱水槽13の脱水回転とは逆方向に進むにつれて上昇する位置に存在するように構成している。
【0018】
上記構成において動作を説明する。洗濯、すすぎ行程を終了して脱水行程に入ると、洗濯兼脱水槽13が回転し始める。やがて回転数が安定する脱水定常時に達すると、一定の周波数の風切り音(例えば480Hz)が発生する。ここで、洗濯兼脱水槽13の内周壁面のビードの隙間18aの列に沿って上昇する風の流れ19が発生し、通水孔20およびビード18によって生じる小さな渦(乱流)をかき消し、整流しながら上昇することによって、一定の周波数の風切り音を分散させて全体の騒音値を低減することができる。
【0019】
また、ビードの隙間18aが脱水行程での衣類の洗濯兼脱水槽13への貼り付きに対して隙間を形成し、さらにビードの隙間18aによる列が脱水時に水の流れる通路21となることで、脱水効率を向上することができる。
【0020】
また、回転軸方向に縦長のビード18を設けて、さらにビード18を途中で分割したことで、回転軸方向の断面係数が大きくなり、洗濯兼脱水槽13のたる型あるいはつづみ型への変形を防止することができ、剛性を向上することができる。
【0021】
(実施例2)
図3に示すように、洗濯兼脱水槽13の内周壁面に略回転軸方向に複数の長いビード18を突設し、ビード18は上下方向で分割するとともに、この分割部分の相互間に隙間18aを形成し、ビードの隙間18aによる列が、数個存在するように構成している。他の構成は上記実施例1と同じである。
【0022】
上記構成において動作を説明する。一定の周波数の風切り音を分散させて全体の騒音値を低減する動作は、上記実施例1と同じであるので説明を省略する。ここで、ビードの隙間18aによる列を複数個持つことで、脱水定常回転数(例えば900rpm)に対応した傾斜角度(例えば45°)と傾斜本数(例えば4本)を設定することによって、より効率よく騒音値を低減することができる。
【0023】
(実施例3)
図4に示すように、ビード22は、断面を略三角形状に構成している。他の構成は上記実施例1または2と同じである。
【0024】
上記構成において動作を説明する。洗濯、すすぎ行程を終了して脱水行程に入ると、洗濯兼脱水槽13が回転し、衣類が洗濯兼脱水槽13へ貼り付き始めるが、ビード22の断面を略三角形状とすることで貼り付きにくくなり、脱水効率を向上することができると同時に、ビード22の略三角形状の先端部分が洗濯板効果となり、洗濯効率を向上することができる。
【0025】
また、ビード22の略三角形状の勾配を適度に設定(例えば5゜〜10゜)することで脱水回転による風を逃がし、風切り音を発生しにくくすることができる。
【0026】
(実施例4)
図5に示すように、分割されたビード22の隙間22aに通水孔20を設けた構成としている。他の構成は上記実施例1または2と同じである。
【0027】
上記構成において動作を説明する。脱水回転時に洗濯兼脱水槽13の内周壁面のビードの隙間22aの列が水の流れる通路となり、この通路上に通水孔20を増やすことで、脱水効率を向上することができ、また、このビードの隙間22aの列上に通水孔20をさらに増やすことで、より脱水効率を向上することはいうまでもない。
【0028】
なお、本実施例では、ビード22は、上記実施例3と同様に、断面を略三角形状に構成しているが、断面は略三角形状でなくてもよい。
【0029】
(実施例5)
図6に示すように、ビード22は、回転軸方向に対し傾斜をもつ構成としている。他の構成は上記実施例1または2と同じである。
【0030】
上記構成において動作を説明する。脱水回転時に洗濯兼脱水槽13の内周壁面のビードの隙間22aの列に沿って上昇する風の流れ19の発生と同様に、ビード22に沿って上昇する風の流れ23が発生し、脱水時、風切り音の整流作用が増加する。また洗濯、すすぎ行程時のパルセータ12の正転、反転によって衣類がビード22に沿って転動し、布まわりがよくなり、洗浄効率およびすすぎ効率を向上することができる。
【0031】
なお、本実施例では、ビード22は、上記実施例3と同様に、断面を略三角形状に構成しているが、断面は略三角形状でなくてもよい。
【0032】
(実施例6)
図7に示すように、洗濯兼脱水槽13の内周壁面における、ビード22または上下方向に分割されたビードの隙間22aの列の向き合うものが存在する構成としている。他の構成は上記実施例1または2と同じである。
【0033】
上記構成において動作を説明する。洗濯、すすぎ行程時にはパルセータ12の正転、反転によって衣類がビードの隙間22aに沿って転動するが、ビード22または分割されたビードの隙間22aの列の向き合うものが存在することにより、逆回転の布の転動を交えることで衣類の捻れを低減し、布がらみ抑制することができる。
【0034】
なお、本実施例では、ビード22は、上記実施例3と同様に、断面を略三角形状に構成しているが、断面は略三角形状でなくてもよい。
【0035】
(実施例7)
図8に示すように、洗濯兼脱水槽13の内周壁面には、略回転軸方向に複数の長い凹状のビード24を有し、かつ、ビード24は上下方向で分割するとともに、この分割部分の相互間に隙間を形成し、水平方向において隣り合う隙間が洗濯兼脱水槽13の脱水回転とは逆方向に進むにつれて上昇する位置に存在する構成としている。他の構成は上記実施例1と同じである。
【0036】
上記構成において動作を説明する。洗濯、すすぎ行程を終了して脱水行程に入ると、洗濯兼脱水槽13が回転を始める。やがて回転数が安定する脱水定常時に達すると、一定の周波数の風切り音(例えば480Hz)が発生する。ここで、洗濯兼脱水槽13の外周壁面のビード隙間の列に沿って上昇する風の流れが発生し、通水孔20およびビード24によって生じる小さな渦(乱流)をかき消し、整流しながら上昇することによって、一定の周波数の風切り音を分散させて全体の騒音値を低減することができる。
【0037】
(実施例8)
図9に示すように、ビード25は、断面を略三角形状とし、かつ、ビード25の最深部分に通水孔20を設けた構成としている。他の構成は上記実施例7と同じである。
【0038】
上記構成において動作を説明する。脱水回転時に凹状のビードのため、衣類と洗濯兼脱水槽13に必ず隙間が発生し、さらにビード25が略三角形状のため、勾配にそって効率よく排水ができ脱水率を向上することができる。
【0039】
また、ビード25の略三角形状の勾配を適度に設定(例えば5゜〜10゜)することで脱水回転による風を逃がし、風切り音が発生しにくくすることができる。
【0040】
【発明の効果】
以上のように本発明の請求項1に記載の発明によれば、上下方向に回転中心軸を有する洗濯兼脱水槽と、この洗濯兼脱水槽の外側に位置し脱水時の水を受ける外槽と、前記洗濯兼脱水槽の底部に回転自在に配設したパルセータと、前記パルセータおよび洗濯兼脱水槽を駆動するモータとを備え、前記洗濯兼脱水槽の内周壁面には略回転軸方向に長い複数のビードを突設し、かつ、前記ビードは上下方向で分割することで、上下のビード間に隙間を形成し、方向において隣り合う隙間が前記洗濯兼脱水槽の脱水回転方向とは逆方向に進むにつれて上昇する位置に存在するように構成することで、前記回転軸方向に対し傾斜した前記隙間による列を形成するようにしたから、脱水回転時に洗濯兼脱水槽の内側に発生する風切り音をビード隙間の列に沿って上昇する風の流れを作ることによって整流し、また、ビード長さが順次変化していくことで、一定の周波数の風切り音を分散させて全体の騒音値を低減することができる。また、ビード間の隙間が脱水行程での衣類の洗濯兼脱水槽への貼り付き時に隙間を作り、さらにビード隙間による列の傾斜が脱水時に水の流れる通路となることで脱水効率を向上することができ、また、回転軸方向に縦長のビードを突設し、さらに上下方向でビードを分割することにより、回転軸方向の断面係数が大きくなり、洗濯兼脱水槽のたる型あるいはつづみ型への変形を防止することができ、剛性を向上することができる。
【0041】
また、請求項2に記載の発明によれば、隙間による列が複数存在するように構成したから、脱水回転数に対応した傾斜角度と傾斜本数を設定することができ、さらに効率よく風切り音を低減し、脱水効率を向上することができる。
【0042】
また、請求項3に記載の発明によれば、ビード断面を略三角形状としたから、脱水行程において衣類が洗濯兼脱水槽へ貼り付きにくくなり、脱水効率を向上することができるとともに、略三角形状の先端が洗濯板効果となり、洗濯効率を向上することができる。また、略三角形状の勾配を適度に設定することで、脱水回転による風を逃がし、風切り音が発生しにくいようにすることができる。
【0043】
また、請求項4に記載の発明によれば、上下方向の分割によるビード相互間の隙間に通水孔を設けたから、脱水時に水の流れる通路上に通水孔を増やすことで、脱水効率を向上することができる
図面の簡単な説明】
【図1】 本発明の第1の実施例の脱水兼用洗濯機の断面図
【図2】 同脱水兼用洗濯機の洗濯兼脱水槽の展開図
【図3】 本発明の第2の実施例の脱水兼用洗濯機の洗濯兼脱水槽の展開図
【図4】 本発明の第3の実施例の脱水兼用洗濯機の洗濯兼脱水槽の要部断面図
【図5】 本発明の第4の実施例の脱水兼用洗濯機の洗濯兼脱水槽の要部展開図
【図6】 本発明の第5の実施例の脱水兼用洗濯機の洗濯兼脱水槽の要部展開図
【図7】 本発明の第6の実施例の脱水兼用洗濯機の洗濯兼脱水槽の展開図
【図8】 本発明の第7の実施例の脱水兼用洗濯機の洗濯兼脱水槽の要部断面図
【図9】 本発明の第8の実施例の脱水兼用洗濯機の洗濯兼脱水槽の要部断面図
【図10】 従来の脱水兼用洗濯機の一例の断面図
【図11】 同脱水兼用洗濯機の他の例の断面図
【符号の説明】
11 外槽
12 パルセータ
13 洗濯兼脱水槽
16 モータ
18 ビード
18a ビードの隙間
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combined dehydrating washing machine that automatically performs a series of steps of washing, rinsing, and dehydrating.
[0002]
[Prior art]
Conventionally, this type of dehydrating washing machine has a configuration as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown, the outer tub 1, the bottom portion encloses the washing and dewatering tank 3 which is arranged rotatably Paruse motor 2, and is vibration proof supported by hanging rods 4 in the washing outside frame 5. A large number of water passage holes 6 and beads 7 are provided at equal intervals on the inner peripheral wall surface of the washing and dewatering tub 3. With this configuration, washing, rinsing, and dehydration processes are automatically performed.
[0004]
However, in this configuration, an unpleasant wind noise is generated by the water passage holes 6 and the beads 7 having an equal interval pitch on the inner peripheral wall surface of the washing and dewatering tub 3. This wind noise is a constant frequency sound determined by the number of rotations of the washing and dewatering tub 3 and the number of water passage holes 6 and beads 7 as shown in the following equation.
[0005]
f = n × Z
Where f: wind noise frequency (Hz)
n: Rotation frequency of the washing and dewatering tub 3 (number of rotations (rpm) / 60) (Hz)
Z: Number of water passage holes or beads with equal pitches In order to solve this problem, a configuration has been proposed in which the water flow holes 6 are arranged at unequal pitches as shown in FIG.
[0006]
[Problems to be solved by the invention]
However, in such a conventional configuration, since the water passage holes 6 and the beads 7 have a non-uniform pitch, there is a problem that the pitch interval is non-uniform and the cleaning performance and dewatering performance are deteriorated. It was. In addition, there is a problem that unevenness in dehydration and unevenness in washing are likely to occur.
[0007]
Moreover, since the inner peripheral wall surface of the washing and dewatering tub 3 is a conspicuous part for the user, there is a problem that it is not preferable in terms of design.
[0008]
The present invention solves the above-mentioned problems, and rectifies wind noise generated inside the washing and dewatering tub during dewatering rotation, and also distributes wind noise of a certain frequency to reduce the overall noise value. It is an object.
[0009]
[Means for Solving the Problems]
The present invention achieves the above object, and an outer tub for receiving water during dehydration is positioned outside a washing / dehydrating tub having a central axis of rotation in the vertical direction, and a pulsator is rotatably provided at the bottom of the washing / dehydrating tub. The pulsator and the washing / dehydrating tub are driven by a motor. The inner peripheral wall surface of the washing and dewatering tank projected long plurality of bi over de in substantially axial direction, and bead by dividing in the vertical direction, a gap is formed between the upper and lower bead, the circumferential direction by adjacent gap is configured to the dewatering rotation direction of the washing and dewatering tank located at a position to rise as one proceeds in the reverse direction at, so as to form a row by the gap which is inclined with respect to the rotation axis direction It is a thing.
[0010]
This makes it possible to rectify wind noise generated inside the washing and dewatering tub during dewatering rotation by creating a flow of wind that rises along the inclination of the bead gap, and the bead length changes sequentially. By doing so, it is possible to disperse wind noise at a constant frequency and reduce the overall noise value.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention comprises a washing / dehydrating tub having a central axis of rotation in the vertical direction, an outer tub located outside the washing / dehydrating tub for receiving water during dehydration, and the washing / dehydrating tub. a pulsator rotatably arranged with the bottom of the tank, the pulsator and the washing and dewatering tank and a motor for driving a long plurality of bi over de in substantially axial direction on the inner peripheral wall surface of the washing and dewatering tank The bead is divided in the vertical direction to form a gap between the upper and lower beads, and the gap adjacent in the circumferential direction advances in the direction opposite to the dewatering rotation direction of the washing and dewatering tub. As a result, the wind noise generated inside the washing and dewatering tub during dehydration rotation is formed. Along the rows of bead gaps Rectified by making the flow of air to raise, also, by the bead length successively changed, it is possible to reduce the overall noise level by distributing wind noise constant frequency. In addition, the bead gap forms a gap between the garment and the washing / dehydration tank, while the clothes are stuck to the washing / dehydration tank in the dehydration process, and the row of bead gaps becomes a passage for water to flow during dehydration. The efficiency of dewatering can be improved with the above, and a longitudinal bead is projected in the direction of the rotation axis, and further the bead is divided in the vertical direction, the sectional modulus in the direction of the rotation axis is increased, and It is possible to prevent deformation to a barrel type or a spelling type, and to improve rigidity.
[0012]
The invention of claim 2 is the invention according to the claim 1, which is configured as columns to a plurality of presence by between gap and the inclination angle and inclination number corresponding to the dewatering rotation number, In addition, wind noise can be reduced more efficiently and dewatering efficiency can be improved.
[0013]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the bead cross section has a substantially triangular shape, and the clothes are less likely to stick to the washing and dewatering tub during the dehydration process. In addition, the tip of the substantially triangular shape becomes a washing plate effect, and washing efficiency can be improved. In addition, by setting a substantially triangular gradient appropriately, it is possible to release wind due to dehydration rotation and to prevent wind noise.
[0014]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a water passage hole is provided in a gap between beads by division in the vertical direction. Dehydration efficiency can be improved by increasing the number of water passage holes on the passage through which the water flows .
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
Example 1
As shown in FIG. 1, the outer tub 11 is vibration-damping support to wash the outside frame 15 by a bottom encloses the washing and dewatering tank 13 which is disposed rotatably a Paruse motor 1 2 unit, hanging rod 14 . The motor 16 drives the pulsator 12 and the washing / dehydrating tub 13 via the speed reduction mechanism 17.
[0017]
As shown in FIG. 2, a plurality of long beads 18 project in the direction of the rotation axis on the inner peripheral wall surface of the washing and dewatering tank 13, and the beads 18 are divided in the vertical direction. A gap 18a is formed between them, and the gap 18a adjacent in the horizontal direction is configured to be located at a position that rises in the direction opposite to the dewatering rotation of the washing and dewatering tub 13.
[0018]
The operation in the above configuration will be described. When the washing and rinsing process is finished and the dehydration process is started, the washing and dewatering tank 13 starts to rotate. Eventually, when reaching the steady state of dehydration where the rotational speed is stable, a wind noise (eg, 480 Hz) with a certain frequency is generated. Here, a wind flow 19 rising along the row of bead gaps 18a on the inner peripheral wall surface of the washing and dewatering tank 13 is generated, and a small vortex (turbulent flow) generated by the water flow holes 20 and the beads 18 is drowned out. By rising while rectifying, it is possible to disperse wind noise with a constant frequency and reduce the overall noise value.
[0019]
In addition, the bead gap 18a forms a gap with respect to the garment sticking to the washing and dehydration tank 13 in the dehydration process, and the row of the bead gap 18a serves as a passage 21 through which water flows during dehydration. Dehydration efficiency can be improved.
[0020]
Further, by providing a vertically long bead 18 in the direction of the rotation axis and further dividing the bead 18 in the middle, the sectional modulus in the direction of the rotation axis is increased, and the washing / dehydrating tub 13 is deformed into a barrel type or a zipper type. Can be prevented, and the rigidity can be improved.
[0021]
(Example 2)
As shown in FIG. 3, a plurality of long beads 18 project from the inner peripheral wall surface of the washing and dewatering tub 13 in the direction of the rotation axis, and the beads 18 are divided in the vertical direction, and there are gaps between the divided portions. 18a is formed, and there are several rows of beads 18a. Other configurations are the same as those of the first embodiment.
[0022]
The operation in the above configuration will be described. The operation for reducing the overall noise value by dispersing the wind noise of a certain frequency is the same as that in the first embodiment, and the description thereof will be omitted. Here, by having a plurality of rows of bead gaps 18a, it is possible to set the inclination angle (for example, 45 °) and the number of inclinations (for example, four) corresponding to the dehydration steady rotation speed (for example, 900 rpm), thereby increasing the efficiency. The noise level can be reduced well.
[0023]
(Example 3)
As shown in FIG. 4, the bead 22 has a substantially triangular cross section. Other configurations are the same as those in the first or second embodiment.
[0024]
The operation in the above configuration will be described. When the washing and rinsing process is completed and the dehydration process is started, the washing / dehydrating tub 13 rotates, and the clothing starts to stick to the washing / dehydrating tub 13. This makes it difficult to improve the dewatering efficiency, and at the same time, the substantially triangular tip portion of the bead 22 has a washing plate effect, thereby improving the washing efficiency.
[0025]
Further, by setting the substantially triangular gradient of the bead 22 appropriately (for example, 5 ° to 10 °), it is possible to escape the wind due to the spin-drying and make it difficult to generate wind noise.
[0026]
Example 4
As shown in FIG. 5, the water flow holes 20 are provided in the gaps 22 a of the divided beads 22. Other configurations are the same as those in the first or second embodiment.
[0027]
The operation in the above configuration will be described. A row of bead gaps 22a on the inner peripheral wall surface of the washing and dewatering tub 13 serves as a passage through which water flows during dewatering rotation, and by increasing the water passage holes 20 on this passage, dewatering efficiency can be improved. It goes without saying that the dewatering efficiency is further improved by further increasing the water passage holes 20 on the row of the bead gaps 22a.
[0028]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0029]
(Example 5)
As shown in FIG. 6, the bead 22 is configured to have an inclination with respect to the rotation axis direction. Other configurations are the same as those in the first or second embodiment.
[0030]
The operation in the above configuration will be described. Similar to the generation of the wind flow 19 rising along the row of the bead gaps 22a on the inner peripheral wall surface of the washing and dewatering tank 13 during the spin-drying rotation, the wind flow 23 rising along the bead 22 is generated, and the dehydration Sometimes the rectification of wind noise increases. The washing, Paruse data 1 2 forward during rinsing stroke, rolling clothing by inversion along the bead 22, the cloth around is improved, it is possible to improve the cleaning efficiency and rinsing efficiency.
[0031]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0032]
(Example 6)
As shown in FIG. 7, the inner circumferential wall surface of the washing and dewatering tub 13 has a configuration in which beads 22 or rows of gaps 22 a of beads divided in the vertical direction face each other. Other configurations are the same as those in the first or second embodiment.
[0033]
The operation in the above configuration will be described. Washing, rinsing mode Paruse data 1 2 forward rotation at the time, but the garment by reversing rolls along the bead of the gap 22a, by those of opposing rows of bead 22 or a divided bead gap 22a exists, By combining the reverse rotation of the cloth, the twist of the garment can be reduced and the cloth can be prevented from curling.
[0034]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0035]
(Example 7)
As shown in FIG. 8, the inner circumferential wall surface of the washing and dewatering tub 13 has a plurality of long concave beads 24 substantially in the direction of the rotation axis, and the beads 24 are divided in the vertical direction, and this divided portion. A gap is formed between the two, and a gap adjacent in the horizontal direction is present at a position that rises in the direction opposite to the dewatering rotation of the washing and dewatering tub 13. Other configurations are the same as those of the first embodiment.
[0036]
The operation in the above configuration will be described. When the washing and rinsing process is completed and the dehydration process is started, the washing and dewatering tank 13 starts rotating. Eventually, when reaching the steady state of dehydration where the rotational speed is stable, a wind noise (eg, 480 Hz) with a certain frequency is generated. Here, an ascending wind flow is generated along a row of bead gaps on the outer peripheral wall surface of the washing and dewatering tub 13, so that small vortices (turbulent flow) generated by the water passage holes 20 and the beads 24 are wiped out and rectified while rising By doing so, it is possible to disperse wind noise with a constant frequency and reduce the overall noise value.
[0037]
(Example 8)
As shown in FIG. 9, the bead 25 has a substantially triangular cross section and a water passage hole 20 provided in the deepest part of the bead 25. Other configurations are the same as those of the seventh embodiment.
[0038]
The operation in the above configuration will be described. Due to the concave bead during dewatering rotation, there is always a gap between the clothes and the washing and dewatering tank 13, and the bead 25 has a substantially triangular shape, so that drainage can be efficiently performed along the gradient and the dewatering rate can be improved. .
[0039]
Further, by setting the substantially triangular gradient of the bead 25 appropriately (for example, 5 ° to 10 °), it is possible to release the wind due to the dehydrating rotation and to prevent the generation of wind noise.
[0040]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing and dewatering tub having the center axis of rotation in the vertical direction, and the outer tub located outside the washing and dewatering tub and receiving water during dehydration A pulsator rotatably disposed at the bottom of the washing / dehydrating tub, and a motor for driving the pulsator and the washing / dehydrating tub, the inner circumferential wall surface of the washing / dehydrating tub substantially in the direction of the rotation axis. projecting the long plurality of bi over de, and the bead is to divide in the vertical direction, a gap is formed between the upper and lower bead, a gap adjacent in the circumferential direction dewatering rotation direction of the washing and dewatering tank In order to form a row by the gaps inclined with respect to the rotation axis direction, it is arranged so that it rises as it advances in the opposite direction to the direction of the rotation axis. The wind noise that is generated Rectified by making a flow of air which rises along, also, by the bead length successively changed, it is possible to reduce the overall noise level by distributing wind noise constant frequency. In addition, the gap between the beads creates a gap when clothes are attached to the washing / dehydration tank during the dehydration process, and the inclination of the row due to the bead gap becomes a passage through which water flows during dehydration, thereby improving dewatering efficiency. In addition, by projecting a vertically long bead in the direction of the rotation axis and further dividing the bead in the vertical direction, the sectional modulus in the direction of the rotation axis is increased, so that it becomes a barrel type or a zipper type of a washing and dewatering tub. Can be prevented, and the rigidity can be improved.
[0041]
Further, according to the invention described in claim 2, since the column by inter gap is configured to a plurality of presence, it is possible to set the inclination angle and inclination number corresponding to the dewatering rotation number, more efficiently wind Sound can be reduced and dewatering efficiency can be improved.
[0042]
According to the invention described in claim 3, since the bead cross section has a substantially triangular shape, the clothes are less likely to stick to the washing and dewatering tank in the dehydration process, and the dewatering efficiency can be improved. The tip of the shape becomes a washing board effect, and washing efficiency can be improved. In addition, by setting a substantially triangular gradient appropriately, it is possible to release wind due to dehydration rotation and to prevent wind noise.
[0043]
Further, according to the invention described in claim 4, since the water passage holes are provided in the gaps between the beads by the vertical division, the dewatering efficiency can be improved by increasing the water passage holes on the passage through which water flows during dehydration. Can be improved .
[ Brief description of the drawings]
FIG. 1 is a cross-sectional view of a dehydrating and washing machine according to a first embodiment of the present invention. FIG. 2 is a development view of a washing and dewatering tank of the dehydrating and washing machine. Fig. 4 is a developed view of a washing and dewatering tub of a dehydrating washing machine. Fig. 4 is a cross-sectional view of a main part of a washing and dehydrating tub of a dehydrating washing machine according to a third embodiment of the present invention. Fig. 6 is an exploded view of the main part of the washing and dewatering tank of the dehydrating and washing machine of the example. Fig. 6 is an exploded view of the main part of the washing and dewatering tank of the dehydrating and washing machine of the fifth embodiment of the present invention. FIG. 8 is a developed view of the washing and dewatering tub of the dehydrating and washing machine of the sixth embodiment. FIG. 8 is a cross-sectional view of the main part of the washing and dewatering tub of the dehydrating and washing machine of the seventh embodiment of the present invention. FIG. 10 is a cross-sectional view of a main part of a washing and dewatering tank of a dehydrating and washing machine according to an eighth embodiment of the invention. FIG. 10 is a cross-sectional view of an example of a conventional dehydrating and washing machine. A cross-sectional view DESCRIPTION OF SYMBOLS
DESCRIPTION OF SYMBOLS 11 Outer tub 12 Pulsator 13 Washing and dewatering tub 16 Motor 18 Bead 18a Bead gap

Claims (4)

上下方向に回転中心軸を有する洗濯兼脱水槽と、この洗濯兼脱水槽の外側に位置し脱水時の水を受ける外槽と、前記洗濯兼脱水槽の底部に回転自在に配設したパルセータと、前記パルセータおよび洗濯兼脱水槽を駆動するモータとを備え、前記洗濯兼脱水槽の内周壁面には略回転軸方向に長い複数のビードを突設し、かつ、前記ビードは上下方向で分割することで、上下のビード間に隙間を形成し、方向において隣り合う隙間が前記洗濯兼脱水槽の脱水回転方向とは逆方向に進むにつれて上昇する位置に存在するように構成することで、前記回転軸方向に対し傾斜した前記隙間による列を形成するようにした脱水兼用洗濯機。A washing / dehydrating tub having a central axis of rotation in the vertical direction, an outer tub located outside the washing / dehydrating tub for receiving water during dehydration, and a pulsator rotatably disposed at the bottom of the washing / dehydrating tub the a motor for driving the pulsator and the washing and dewatering tank, projecting a long plurality of bi over de in substantially axial direction on the inner peripheral wall surface of the washing and dewatering tank, and the bead is vertically in by dividing, by the gap formed between the upper and lower bead, the gap adjacent in the circumferential direction dewatering rotation direction of the washing and dewatering tank configured to present at a position increases as the process proceeds in the opposite direction A dehydrating combined washing machine configured to form a row with the gaps inclined with respect to the rotation axis direction . 間による列が複数存在するように構成した請求項1記載の脱水兼用洗濯機。Dewatering the washing machine according to claim 1, wherein the column is configured to a plurality of presence by inter gap. ビード断面を略三角形状とした請求項1または2記載の脱水兼用洗濯機。  The dehydrating combined-use washing machine according to claim 1 or 2, wherein the bead section has a substantially triangular shape. 上下方向の分割によるビード相互間の隙間に通水孔を設けた請求項1〜3のいずれか1項に記載の脱水兼用洗濯機。The dehydrating combined washing machine according to any one of claims 1 to 3, wherein a water passage hole is provided in a gap between the beads by division in the vertical direction.
JP33840197A 1997-12-09 1997-12-09 Combined washing machine Expired - Fee Related JP3864521B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33840197A JP3864521B2 (en) 1997-12-09 1997-12-09 Combined washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33840197A JP3864521B2 (en) 1997-12-09 1997-12-09 Combined washing machine

Publications (2)

Publication Number Publication Date
JPH11169589A JPH11169589A (en) 1999-06-29
JP3864521B2 true JP3864521B2 (en) 2007-01-10

Family

ID=18317820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33840197A Expired - Fee Related JP3864521B2 (en) 1997-12-09 1997-12-09 Combined washing machine

Country Status (1)

Country Link
JP (1) JP3864521B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015019639A1 (en) * 2013-08-09 2015-02-12 シャープ株式会社 Washing machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020029975A (en) * 2000-10-16 2002-04-22 구자홍 The Placement Structure of Embossing and Spin hole for Noise Reduction
KR100473752B1 (en) * 2001-06-14 2005-03-08 가부시키가이샤 히타치세이사쿠쇼 Washing and Drying Machine
KR101998895B1 (en) * 2014-03-20 2019-07-10 윤학균 Tub of a washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015019639A1 (en) * 2013-08-09 2015-02-12 シャープ株式会社 Washing machine
JP2015033512A (en) * 2013-08-09 2015-02-19 シャープ株式会社 Washing machine

Also Published As

Publication number Publication date
JPH11169589A (en) 1999-06-29

Similar Documents

Publication Publication Date Title
US9920465B2 (en) Washing method for washing machine and a washing machine
JPH0757274B2 (en) Roller type agitator type washing machine
JP3864521B2 (en) Combined washing machine
US20040118168A1 (en) Lift of drum-type washing machine and drum-type washing machine using the same
KR100765273B1 (en) lifter in drum-type washing machine
JP2005087579A (en) Electric washing machine or electric washing machine having drying function
JP3984940B2 (en) Washing machine and washing dryer
JPS6111097A (en) Washing machine
US7082793B2 (en) Drum-type washing machine having a laundry drum which can be loaded from the front
CN101210371A (en) Roller for washboard type roller washing machine
KR930006699B1 (en) Rotor in washing machine
SU1390275A1 (en) Washing machine
JP2005192830A (en) Washing machine
JPH10314490A (en) Washing machine provided with main pulsator and auxiliary pulsator
JPS631986Y2 (en)
JPH0314153Y2 (en)
KR20000013798U (en) Drum of Washing Machine
JPH0671089A (en) Washing machine
JPH0126386Y2 (en)
US2152477A (en) Washing machine
JP2000153094A (en) Washing machine commonly used for dehydration
JP2667822B2 (en) Dehydration washing machine
JPH034215Y2 (en)
JPH0133109Y2 (en)
JPS6115831Y2 (en)

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20050624

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20051216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060606

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060802

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

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060912

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060925

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091013

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101013

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111013

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121013

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131013

Year of fee payment: 7

LAPS Cancellation because of no payment of annual fees