JPS6111092A - Washing machine - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、洗濯槽の底部に設けられた回転翼を、短時間
毎に左右に低速回転させる洗濯機に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a washing machine that rotates a rotor blade provided at the bottom of a washing tub at a low speed from side to side at short intervals.

く口）従来の技術 昨今のこの種の洗濯槽は、従来のように回転翼を高速で
長時間回転させて高い洗浄率で洗うものから脱却し、短
時間で左右に低速回転させるようにして衣類の損傷を極
力抑制するものに代ってきている。後者の例は例えば特
開昭５９−１７３９０号公報で示されており、これを第
２図〜第５図に基づいて説明する。(Example) Conventional technology This type of washing tub these days has moved away from the traditional method of rotating the rotor blades at high speed for a long time to achieve a high cleaning rate, and instead rotates at a low speed from side to side for a short period of time. They are now being replaced by products that minimize damage to clothing. An example of the latter is shown in, for example, Japanese Patent Laid-Open No. 17390/1983, and will be explained based on FIGS. 2 to 5.

（１）は脱水槽を兼ねる洗濯槽で、その周壁には多数の
脱水孔（２）を有し、モの口縁にはバランスリング（３
）が取付けられている。そして洗濯槽く１）の底部中央
には、回転翼（４）が配設されている。洗濯槽（１〉は
外槽（５）内に設けられ、外槽（５）の底部には、洗濯
槽（１）や回転翼（４）を回転せしめる駆動モータ（６
）やクラッチやブレーキ装置等を有する駆動機構（７）
が装着され、かかる外！（５）は機枠（８）上部より複
数の吊棒（９）にて防振的に吊下されている。(1) is a washing tub that also serves as a dehydration tank, and has many dehydration holes (2) on its peripheral wall, and a balance ring (3) on the rim of the tub.
) is installed. A rotary blade (4) is disposed at the center of the bottom of the washing tub (1). The washing tub (1) is provided in an outer tub (5), and a drive motor (6) is installed at the bottom of the outer tub (5) to rotate the washing tub (1) and the rotary blades (4).
), a drive mechanism (7) that includes a clutch, a brake device, etc.
It is installed and takes outside! (5) is suspended from the upper part of the machine frame (8) by a plurality of hanging rods (9) in a vibration-proof manner.

而して、上記回転翼（４）は、大径の円形のへ一スク１
０〉と、このヘーヌ（１０）の周縁より中央に向って次
第に突出された略三角柱状の突出部（１１）と、この突
出部の三角形の各頂点よりヘース（１０）の周縁に向っ
て突設された羽根（１２）とから構成される。各羽根（
１２）は第４図から明らかな如くベース（１０）の周縁
に向って同方向く図では右方向）にゆるやかに曲線を描
いて偏向している。上記突出部（１１）の高さくＨ）は
円形ベース（１０）の外径（ｄ）の約に程度で且つ洗濯
槽（１）の水面の高さく　ｈ、）より低くなるよう定め
られている。実施例においては、洗濯槽（１）の内径（
Ｄ　）−４００［ｎｗｎ　］に対し、円形ベース（１０
）の外径＝（ｄ　）　＝　３２０［ｍｍ　］、突出部（
１１）の高さくＨ）−１４０［ｍｍコである。Therefore, the rotary blade (4) has a large diameter circular disk 1.
0>, a substantially triangular prism-shaped protrusion (11) that gradually protrudes from the periphery of the hee (10) toward the center, and a protrusion (11) in the shape of a substantially triangular prism that protrudes from each vertex of the triangle of this protrusion toward the periphery of the hee (10). It consists of a blade (12) provided. Each feather (
12) is deflected in a gentle curve toward the periphery of the base (10) in the same direction (rightward in the figure) as is clear from FIG. The height H) of the protruding portion (11) is set to be approximately equal to the outer diameter (d) of the circular base (10) and lower than the height h,) of the water surface of the washing tub (1). . In the embodiment, the inner diameter of the washing tub (1) (
D)-400 [nwn], circular base (10
) outer diameter = (d) = 320 [mm], protrusion (
The height of 11) is H) -140 [mm].

上記突出部（１１）の頂部には、一段径の小きくなった
頂部略三角柱（１３）が形成されている。この三角柱（
１３）の側面の傾斜（０２）は第５図の如くその下の径
の大きい三角柱（上記突出部（１１））の側面上端の傾
斜（θ１）より緩やかになっている。実施例のものでは
（θ２＞＝１２°、（θ１）＝８°である。At the top of the protrusion (11), a substantially triangular prism (13) is formed at the top, the diameter of which is reduced by one step. This triangular prism (
As shown in FIG. 5, the slope (02) of the side surface of 13) is gentler than the slope (θ1) of the upper end of the side surface of the large-diameter triangular prism (the protrusion (11)) below it. In the example, (θ2>=12°, (θ1)=8°.

図で（１４）は翼軸（１５）の頂部と嵌合するボスで、
回転翼頂部裏側に設けたボス（１６）にインサートされ
ている。回転翼（４）は翼軸（１５）頂部に取付ネジ（
１７）を締着することにより翼軸に取付けられる。In the figure, (14) is a boss that fits with the top of the wing shaft (15).
It is inserted into a boss (16) provided on the back side of the top of the rotor blade. The rotor blade (4) has a mounting screw (
17) to be attached to the wing shaft.

上記回転翼く４）は左右交互に回転きれるが、その回転
数は３００［ｒ、　ｐ、　ｍ１以下に抑えてあり、従来
の回転翼の回転数４５０［ｒ、　ｐ、　ｍ］〜７２０［
ｒ、　ｐ、　ｍａｌに比べ低い。実施例のものは約１８
０［ｒ、　ｐ、　ｍ］に定めである。The above-mentioned rotor blade 4) can rotate left and right alternately, but the rotation speed is kept below 300 [r, p, m1], compared to the rotation speed of conventional rotor blades 450 [r, p, m] to 720 [r, p, m].
It is lower than r, p, and mal. The one in the example is about 18
It is defined as 0[r, p, m].

そして０．５秒〜１秒間の休止を挾んで左右へ１秒〜２
秒間回転させて休止すると云う同一の単周期を集合させ
た反転づイクルを、設定時間中繰返すようにしている。Then, after a pause of 0.5 seconds to 1 second, move left and right for 1 second to 2 seconds.
The inversion cycle, which is a collection of the same single cycle of rotation for seconds and rest, is repeated during a set time.

また、この回転中に、回転翼（４）の回転により洗濯槽
（１）内の水面が第３図一点鎖線の如くすり林状に中央
部が低くなっても、上記突出部り１１）よりも低くなら
ない値となっている。Moreover, even if the water surface in the washing tub (1) becomes lower in the center part due to the rotation of the rotor blade (4) as shown in the dashed line in FIG. It is a value that does not become low.

かかるものにおいて洗濯槽（１）へ給水し布（Ｃ）を入
れ、回転Ｒ（４）を回転させると、回転翼（４）の下部
では従来から使用されている回転翼と同しように布を水
平方向に回転させようとする水流を生し、回転翼の上部
では突出部（１１）の三角柱状の面や羽根（１２）によ
って布を浮き沈みΔせる力を与える。その結果布は、第
２図矢印の如く洗濯槽側壁に沿って一旦回転翼の方へ沈
み、その後三角柱状の突出部（１１）に沿って浮び上が
ってくるような運動をしながら水平方向に回転する。In such a washing machine, when water is supplied to the washing tub (1) and a cloth (C) is put therein, and the rotor R (4) is rotated, the cloth is placed at the lower part of the rotor blade (4) in the same way as the rotor blade used conventionally. A water flow is generated to rotate the cloth in the horizontal direction, and at the top of the rotary blade, the triangular prism-shaped surface of the protrusion (11) and the blades (12) apply a force that causes the cloth to rise and fall. As a result, the cloth temporarily sinks toward the rotor along the side wall of the washing tub, as shown by the arrow in Figure 2, and then floats up along the triangular prism-shaped protrusion (11) in the horizontal direction. Rotate.

特に回転翼の三つの羽根り１２）が第４図の如く同方向
（右方向）にゆるやかに曲線を描いて偏向しているので
、回転翼（４）の回転によって発生する水流に左と右と
で差ができ、右回転の場合はより布を上へ浮き上がらせ
るような水流が強まる。これは右回転の方がより強い力
を水に与えるので、洗濯槽壁に強く当ってその反動て浮
き北がるような水流が生しるのである。この結果布の上
下の動きが発生する。In particular, the three blades 12) of the rotor blade are deflected in a gentle curve in the same direction (to the right) as shown in Figure 4, so the water flow generated by the rotation of the rotor blade (4) is directed to the left and right. There is a difference between the rotation and clockwise rotation, which creates a stronger water flow that lifts the cloth upwards. This is because turning to the right applies a stronger force to the water, which causes the water to hit the wall of the washing tub more strongly, causing a flow of water that floats north due to the reaction. This results in vertical movement of the cloth.

そして突出部（１１）が水面下になるようにしであるの
で、浮き上がってきた布は、突出部（１１）上を乗り越
えやすべなって大きな動きとなる。この際突出部（１１
）は円筒状ではなく三角柱状になっているので、この突
出部でもって布を周囲へ追いやろうとする水流を発生さ
せ、布が突出部へからみつかないようにしている。Since the protruding part (11) is placed below the water surface, the cloth that has floated up can move over the protruding part (11), making a large movement. At this time, the protrusion (11
) is not cylindrical but triangular prism-shaped, so this protrusion generates a stream of water that tries to drive the cloth around, preventing the cloth from getting entangled in the protrusion.

特にこの場合、突出部（１１）の頂部には、一段径の小
きくなった頂部略三角柱り１３）が形成されているので
、大きな径の突出部（１１）の上端部とノ」−さな径の
頂部略三角柱（１３）とでもってこの付近に乱流を発生
させて、この部分へ布が一層からみつきに＜＜シており
、又突出部（１１〉の側面上端の傾斜角（θ１）〈頂部
略三角柱（１３）の側面傾斜角くθ２）となっているの
で、布が回転翼（４）の上を一段と乗り越えやすくなる
。Particularly in this case, since the top of the protrusion (11) is formed with a substantially triangular prism 13) having a smaller diameter by one step, the upper end of the protrusion (11) with a larger diameter is in contact with the upper end of the protrusion (11). The approximately triangular prism (13) at the top with a diameter of ) (The inclination angle of the side surface of the top substantially triangular prism (13) is θ2), making it easier for the cloth to climb over the rotor blade (4).

このように従来例は、洗たく中に衣類がからみ付きにく
いので、からみ付きによる布傷みも少く、回転翼（４）
の回転数が低いので、それだけでも布傷みは少い。In this way, in the conventional example, clothes are less likely to get tangled during washing, so there is less damage to the fabric due to tangles, and the rotary blade (4)
Since the rotation speed is low, there is little damage to the fabric.

斯る従来例は、回転翼（４）の下部では衣類を水平方向
に回転させ、上部では上下に浮き沈みさせ、全体として
衣類を上下に大きく動かすようにしであるが、回転翼（
４）の回転数が非常に低いので、設定時間の当初から衣
類を上下に動かすことが難しい。従って、使用者にとっ
て衣類の動きが悪く見え、洗えないとの印象を与えるこ
とがあった。In such a conventional example, the lower part of the rotor blade (4) rotates the clothing in the horizontal direction, and the upper part of the rotor blade (4) allows the clothing to rise and fall up and down, moving the clothing as a whole vertically.
4) Since the rotation speed is very low, it is difficult to move the clothes up and down from the beginning of the set time. Therefore, the movement of the clothes appears to the user to be poor, giving the impression that the clothes cannot be washed.

（ハ）発明が解決しようとする問題点 本発明は、全体の水流を脈動啓上て衣類の動きを活発化
するものである。(c) Problems to be Solved by the Invention The present invention aims to pulsate the entire water flow to activate the movement of clothing.

（二〉　問題点を解決するための手段 本発明は、回転翼の左右の各回転時間を長短変化させる
と共に、一方向の回転時間を時間の長い順に、他方向の
回転時間を時間の短い順に並へたことにより問題点を解
決するものである。(2) Means for Solving the Problems The present invention changes the length of each rotation time of the left and right sides of the rotor blade, and also changes the rotation time in one direction in the order of the longest time and the rotation time in the other direction in the order of the shortest time. This solves the problem by making it even.

（ホ〉　作用 即ち、いずれかの方向の回転水流が徐々に強化されると
共に他方向が弱められるので、個々の時間差で水流が脈
動するのに加えて水流が洗浄力の高い一方向渦巻水流に
近く成り、衣類の動きを大きくすると共に洗浄力を強化
する。(E) In other words, the rotating water flow in one direction is gradually strengthened and the other direction is weakened, so in addition to the water flow pulsating with individual time differences, the water flow becomes a unidirectional swirling water flow with high cleaning power. It becomes closer and increases the movement of clothes and strengthens the cleaning power.

（へ）実施例 本発明による洗濯機の基本形状は第５ｒ５Ａ〜第８図で
示す従来例のものと同一であり、例えば同形状の回転翼
及び羽根、駆動モータ、駆動機構を備え、洗い及びすす
ぎの行程で回転翼をマイクロコンビコータに予め記憶さ
れている反転サイクルに従って回転させる。詳しくは、
約１８（１’ｒ、　ｐ、　ｍの回転数で、適当な休止時
間を挾んで左右交互に最大３秒の回転時間で反転する。(f) Example The basic shape of the washing machine according to the present invention is the same as that of the conventional example shown in Figs. During the rinsing process, the rotor is rotated according to a reversal cycle stored in the micro combi coater in advance. For more information,
At a rotation speed of approximately 18 (1'r, p, m), rotate left and right alternately for a maximum of 3 seconds with an appropriate rest period in between.

全自動コースでは従来同様に、給水−洗い一排水→中間
脱水−給水−第１すすぎ一排水一中間脱水→給水−第２
すすぎ一排水一最終脱水と云う行程を実行し、この内で
洗い、第１、第２すすぎの各行程で回転翼が間欠的に反
転する。洗い行程、第１すすぎ行程、第２すすぎ行程及
び中間、最終脱水行程の所要時間は予め自由に設定する
ことができる。In the fully automatic course, as before, water supply - washing - drain → intermediate dehydration - water supply - 1st rinse - drain - intermediate dehydration → water supply - 2nd
A process of rinsing, draining, and final dehydration is performed, and the rotary blades are intermittently reversed during each of the first and second rinsing processes. The times required for the washing process, first rinsing process, second rinsing process, and intermediate and final dehydration processes can be freely set in advance.

上記反転サイクル（１サイクル）は第１図で示きれてお
り、休止時間を挾んで左右交互に回転時間を配置してい
る。ここで、左右の各回転時間（Ｔ　１）〜（Ｔ５）は
長短変化し、Ｔｌ＜Ｔ２＜Ｔ３’＜Ｔ４＜Ｔ５の関係に
設定きれる。また、休止時間（Ｔｏ）は一定である。と
のＴ１〜Ｔ５及びＴｏは水流強度を調節する際に変化す
るが、最大３秒程度のものである。また、右回転一体止
一左回転一体止と云う単位（以下単周期）では左右回転
時間の和を各々一定或いはほぼ一定にしである。The above-mentioned reversal cycle (one cycle) is fully illustrated in FIG. 1, and the rotation times are arranged alternately on the left and right with rest times in between. Here, the left and right rotation times (T1) to (T5) vary in length and can be set to the relationship Tl<T2<T3'<T4<T5. Further, the downtime (To) is constant. Although T1 to T5 and To change when adjusting the water flow intensity, they are about 3 seconds at most. In addition, in units of clockwise rotation integrally stopped and counterclockwise rotation integrally stopped (hereinafter referred to as a single period), the sum of the left and right rotation times is kept constant or almost constant.

即ち、Ｔ１＋ＴＳ＝Ｔ２＋Ｔ４＝Ｔ３＋Ｔ３或いはＴＩ
　＋Ｔｓ：Ｔ＊＋Ｔ４：Ｔ３＋Ｔ３である。That is, T1+TS=T2+T4=T3+T3 or TI
+Ts:T*+T4:T3+T3.

この第１実施例の反転サイクルは、右回転時間が短くて
左回転時間が長い第１単周期を２回連続させ、左右の回
転時間が同じである同一単周期を経て、右回転時間が長
くて左回転時間が短い第２単周期を３回連続させ、再び
同一単周期を経−Ｃ第１単周期を１回実行するものであ
る。即ち、右回転時間はＴ１→Ｔ５と増加し、左回転時
間はそれに同期してＴ５４Ｔ１と減少し、各単周期は増
加１向と減少方向に合せて整列させである。また、右回
転の最短のＴ１の後に休＋ｈ（Ｔｏ）を置いて左回転の
最長のＴ５が位置し、左回転の最短のＴｚの前に休止（
Ｔｏ）を置いて右回転の最長のＴ５が位置し７、左右回
転力の落差を最高に大きくしている。In the reversal cycle of the first embodiment, the first single period in which the clockwise rotation time is short and the counterclockwise rotation time is long is repeated twice, and after the same single period in which the left and right rotation times are the same, the clockwise rotation time is long. Then, the second single cycle with a short counterclockwise rotation time is performed three times in a row, and then the same single cycle is repeated, and then the first single cycle is executed once. That is, the clockwise rotation time increases from T1 to T5, and the counterclockwise rotation time synchronizes with this and decreases to T54T1, and each single cycle is aligned in one direction of increase and one direction of decrease. In addition, the longest T5 of left rotation is placed after the shortest T1 of right rotation, and the longest T5 of left rotation is placed, and the pause (To) is placed before the shortest Tz of left rotation.
T5, which is the longest for clockwise rotation, is located after T.

斯る反転サイクルを設定時間中繰返すと、個々の時間差
により水流は脈動し、衣類の動きを大きくする。また、
水流はいずれか一方向で連続するように形成きれ、一方
向渦巻水流に近いものと成り、その強い洗浄力によって
衣類を洗う。When such a reversal cycle is repeated for a set time, the water flow pulsates due to the individual time differences, increasing the movement of the garment. Also,
The water stream can be formed continuously in one direction, creating something similar to a unidirectional swirling water stream, which washes clothes with its strong cleaning power.

（ト〉　発明の効果 本発明に依れば、回転翼を短時間毎に低速回転させる中
で、水流を脈動させると共に、一方向渦巻水流に近いも
のと成すので、からみ、傷みの少い洗いに洗浄力を強化
した洗いを加えることができ、高性能で実用的な洗濯機
を提供できるものである。(G) Effects of the Invention According to the present invention, while the rotor is rotated at a low speed every short period of time, the water flow is pulsated and is made to be similar to a unidirectional swirling water flow. It is possible to add washing with enhanced cleaning power to the washing machine, and it is possible to provide a high-performance and practical washing machine.

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

第１図は本発明による１′５ｉ：濯機の反転刃イクルの
タイムチャート、第２図は本発明及び従来例の全体の縦
断面図、第３図は同しく要部拡大縦断面図、第４図は同
しく回転翼の平面図、第５図は同じく第４図Ａ−０−Ｂ
線に基づく断面図である。 （１）・・脱水兼洗濯槽、（４）・　回転翼。Fig. 1 is a time chart of the 1'5i: reversing blade cycle of a washing machine according to the present invention, Fig. 2 is a longitudinal cross-sectional view of the entire structure of the present invention and a conventional example, and Fig. 3 is an enlarged longitudinal cross-sectional view of the main part. Figure 4 is also a plan view of the rotor, and Figure 5 is also Figure 4 A-0-B.
FIG. (1)... Dehydration/washing tub, (4)... Rotating blade.

Claims (1)

【特許請求の範囲】[Claims] （１）洗濯槽の底部に設けられた回転翼を、左右に所定
順序で短時間毎に低速回転させる洗濯機に於いて、上記
回転翼を一方向回転させた後に他方向回転させ且つ左右
の各回転時間を長短変化させて成る反転サイクルを備え
、この反転サイクル中の左右いずれか一方の回転時間を
時間の長い順に並べると共に他方向の回転時間を時間の
短い順に並べたことを特徴とする洗濯機。(1) In a washing machine that rotates the rotor blades installed at the bottom of the washing tub at low speed for a short period of time from side to side in a predetermined order, the rotor blades are rotated in one direction and then rotated in the other direction; It is characterized in that it has a reversal cycle in which the length of each rotation time is varied, and that the rotation times in either the left or right during this reversal cycle are arranged in order of the longest time, and the rotation times in the other direction are arranged in the order of the shortest time. washing machine.