JP2006223638A - Washing machine - Google Patents

Washing machine Download PDF

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JP2006223638A
JP2006223638A JP2005042224A JP2005042224A JP2006223638A JP 2006223638 A JP2006223638 A JP 2006223638A JP 2005042224 A JP2005042224 A JP 2005042224A JP 2005042224 A JP2005042224 A JP 2005042224A JP 2006223638 A JP2006223638 A JP 2006223638A
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blade
pumping
laundry
rotation
washing
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Satoshi Nishiwaki
智 西脇
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Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Home Appliances Corp
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Priority to JP2005042224A priority Critical patent/JP2006223638A/en
Publication of JP2006223638A publication Critical patent/JP2006223638A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To increase the washing performance by splashing a large amount of washing water on laundry while suppressing the damage or the tangling of the laundry. <P>SOLUTION: A rotating blade 11 which is arranged at the internal lower section of an internal tub 2 is constituted of an agitating blade 12 which agitates the laundry S, and a pumping blade 13 which pumps up the washing water W through a pumping passage 4 and splashes the washing water W onto the laundry. The pumping blade 13 is driven by a driving shaft 9, and the agitating blade 12 is driven with a delay from the rotation of the pumping blade 13 through a transmitting means comprising an engaging structure of a protuberance 17 and a protuberance 15 by the pumping blade 13. Thus, the pumping blade 13 is rotated earlier than the rotation of the agitating blade 12, and the washing water W is splashed onto the laundry S before the laundry S is agitated, and therefore, a larger amount of the washing water W by the delay can be splashed onto the laundry S, and the laundry S is impregnated with the washing water W. Also, on the contrary, since the agitating blade 12 is rotated behind the rotation of the pumping blade 13, a mechanical force which is applied to the laundry S is reduced by the delay, and damage or the tangling of the laundry S can be suppressed to a small amount. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、洗濯槽の内下部に回転翼を配設し、洗濯槽の側部に揚水路を設けた洗濯機に関する。   The present invention relates to a washing machine in which rotating blades are disposed at the inner and lower portions of a washing tub and a pumping path is provided at a side of the washing tub.

近年、洗濯機においては、節水性能が求められており、すなわち、より少ない水量で洗濯できることが要望されている。しかしながら、洗濯時の水量を少なくすると、洗濯物への洗濯水の浸透が少なくなり、充分な洗濯性能を得ることが困難となる。それを補う洗濯方法として、洗濯物に上から洗濯水をかけつつ、洗濯物を撹拌することが考えられている。   In recent years, water-saving performance has been demanded in washing machines, that is, washing with a smaller amount of water has been demanded. However, if the amount of water at the time of washing is reduced, the penetration of the washing water into the laundry is reduced, making it difficult to obtain sufficient washing performance. As a washing method to compensate for this, it has been considered that the laundry is stirred while washing water is applied to the laundry from above.

このために、洗濯槽には、底部に回転翼が設けられると共に、側部に揚水路が設けられ、回転翼を回転させることで、洗濯水を揚水路を通じ揚げて洗濯物にかけ、それと同時に洗濯物を撹拌するようになっており、要するに、洗濯物に洗濯水を効率良く浸透させつつ、洗濯物を動かすようになっている。
特開平7− 8680号公報 特開平7−16389号公報
For this purpose, the washing tub is provided with a rotary blade at the bottom and a pumping channel at the side. By rotating the rotary blade, the washing water is pumped through the pumping channel and applied to the laundry. In other words, the laundry is moved while the washing water is efficiently permeated into the laundry.
Japanese Patent Laid-Open No. 7-8680 Japanese Unexamined Patent Publication No. 7-16389

上述のものの場合、回転翼は、それ1つで、洗濯水を揚水路を通じ揚げて洗濯物にかけるのと、洗濯物を撹拌するのとを行うようになっており、そのため、洗濯性能を上げるべく、洗濯物により多くの洗濯水をかけようとすると、回転翼の回転を増すことで、洗濯物の撹拌も多くなり、その分、洗濯物同士の擦れや、洗濯物と回転翼との擦れ、並びに洗濯物と洗濯槽との擦れなど、洗濯物に与える機械力による洗濯物の傷みが大きくなり、絡みも大きくなってしまう。かといって、洗濯物の傷みや絡みを少なくしようとすると、回転翼の回転を少なくすることで、洗濯物に多くの量の洗濯水をかけることができず、洗濯性能を上げることができない。   In the case of the above-described one, the rotor blade is one, and it is designed to lift the washing water through the pumping channel and apply it to the laundry, and to stir the laundry, thus improving the washing performance. Therefore, if more washing water is applied to the laundry, the rotation of the rotating blades increases, so that the stirring of the laundry also increases, and accordingly the rubbing between the laundry and the rubbing between the laundry and the rotating blades. In addition, damage to the laundry due to mechanical force applied to the laundry, such as rubbing between the laundry and the washing tub, increases, and the entanglement also increases. On the other hand, when trying to reduce the damage and entanglement of the laundry, it is impossible to apply a large amount of washing water to the laundry by reducing the rotation of the rotor blades, and the washing performance cannot be improved.

本発明は上述の事情に鑑みてなされたものであり、従ってその目的は、洗濯物の傷みや絡みを少なく抑えつつ、洗濯物に多くの量の洗濯水をかけることができて、洗濯性能を上げることのできる洗濯機を提供するにある。   The present invention has been made in view of the above circumstances. Therefore, the object of the present invention is to allow a large amount of washing water to be applied to the laundry while reducing the damage and entanglement of the laundry, thereby improving the washing performance. To provide a washing machine that can be raised.

上記目的を達成するために、本発明の洗濯機においては、洗濯槽の内下部に回転翼を配設し、洗濯槽の側部に揚水路を設けたものにおいて、前記回転翼を、前記洗濯槽の内部に洗濯水と共に収容された洗濯物を撹拌する撹拌翼と、前記洗濯水を前記揚水路を通じ揚げて前記洗濯物にかける揚水翼との2翼で構成し、それら揚水翼と撹拌翼とを駆動軸に同軸に取付け、揚水翼を駆動軸で駆動し、撹拌翼を揚水翼で伝動手段を介し揚水翼の回転から遅延して駆動するようにしたことを特徴とする(請求項1の発明)。   In order to achieve the above object, in the washing machine of the present invention, a rotary blade is disposed in the inner and lower portions of the washing tub, and a pumping path is provided in a side portion of the washing tub. It comprises two blades: a stirring blade that stirs the laundry stored together with the washing water inside the tub, and a pumping blade that lifts the washing water through the pumping path and puts it on the laundry. Are attached coaxially to the drive shaft, the pumping blade is driven by the drive shaft, and the stirring blade is driven by the pumping blade with a delay from the rotation of the pumping blade via the transmission means (claim 1). Invention).

上記手段によれば、撹拌翼を揚水翼で伝動手段を介し揚水翼の回転から遅延して駆動する分、撹拌翼が回転されるより早く揚水翼が回転され、それによって、洗濯物を撹拌する前から洗濯物に洗濯水がかけられ、それだけ多くの洗濯水を洗濯物にかけ得るようになる。又、逆には、揚水翼が回転されるより遅くから撹拌翼が回転されるので、それだけ、洗濯物に与える機械力が減り、洗濯物の傷みや絡みを少なく抑え得るようになる。   According to the above means, the pumping blade is rotated by the pumping blade with the pumping blade being delayed from the rotation of the pumping blade through the transmission means, so that the pumping blade is rotated faster than the stirring blade is rotated, thereby stirring the laundry. Washing water is applied to the laundry from the front, so that much washing water can be applied to the laundry. On the contrary, since the stirring blade is rotated after the pumping blade is rotated, the mechanical force applied to the laundry is reduced accordingly, and the damage and entanglement of the laundry can be suppressed.

以下、本発明の第1実施例(第1の実施形態)につき、図1ないし図6を参照して説明する。
まず、図1には、外槽1と、これの内部に配設した内槽2を示している。これらは図示しない外箱に内設したもので、外槽1は一般に複数本の吊り棒及びスプリングを主体とする弾性吊持機構(これも図示せず)により揺動可能に弾性支持されており、内槽2は回転可能に設けられている。
A first embodiment (first embodiment) of the present invention will be described below with reference to FIGS.
First, FIG. 1 shows an outer tub 1 and an inner tub 2 disposed therein. These are installed in an outer box (not shown), and the outer tub 1 is generally elastically supported to be swingable by an elastic suspension mechanism (not shown) mainly composed of a plurality of suspension bars and springs. The inner tank 2 is rotatably provided.

又、外槽1は貯水槽であり、一方、内槽2は洗濯槽であると共に脱水槽でもあって、周側部のほゞ全域に図示しない脱水孔を多数有しており、上縁部に回転バランサ3を有している。更に、内槽2の側部には揚水路4を設けている。この揚水路4は、内槽2の側部を上下に延びたもので、下端部に入水口5を有しており、上端部とそれより下位の上部とにそれぞれ出水口6,7を有している。   The outer tub 1 is a water storage tub, while the inner tub 2 is a washing tub and a dehydration tub. The rotary balancer 3 is provided. Further, a pumping path 4 is provided on the side of the inner tank 2. The pumping path 4 extends from the side of the inner tank 2 up and down, has a water inlet 5 at the lower end, and has outlets 6 and 7 at the upper end and the lower upper part, respectively. is doing.

一方、外槽1の底部外下方には駆動装置であるモータ8を取付けており、このモータ8の回転軸を駆動軸9として、外槽1の底部中央及び内槽2の底部中央をそれぞれ回転可能に貫通させ、内槽2の内下部に突出させている。なお、駆動軸9の周囲には伝動軸10を回転可能に嵌挿していて、これを外槽1の底部中央を回転可能に貫通させ、内槽2の底部に取付けている。又、図示しないが、モータ8には、駆動軸9から伝動軸10への駆動力の伝達を選択的にするクラッチ機構を内設すると共に、駆動軸9を制動する、ひいてはクラッチ機構を介して伝動軸10を制動する電気ブレーキなどブレーキ機能を持たせている。   On the other hand, a motor 8 as a driving device is attached to the lower part of the outer tub 1 outside the bottom, and the center of the bottom of the outer tub 1 and the center of the bottom of the inner tub 2 are rotated by using the rotation shaft of the motor 8 as a drive shaft 9. It penetrates as much as possible and protrudes from the inner bottom of the inner tank 2. A transmission shaft 10 is rotatably fitted around the drive shaft 9, and the transmission shaft 10 is rotatably passed through the center of the bottom of the outer tub 1 and attached to the bottom of the inner tub 2. Although not shown, the motor 8 is provided with a clutch mechanism for selectively transmitting the driving force from the drive shaft 9 to the transmission shaft 10 and brakes the drive shaft 9. A brake function such as an electric brake for braking the transmission shaft 10 is provided.

そして、上記内槽2の内下部に突出した駆動軸9の上部には、回転翼11を取付けている。この回転翼11は、撹拌翼12と揚水翼13との2翼から成り、これらを駆動軸9の上部に同軸に取付けている。そして、そのうちの撹拌翼12は、図3に示すように、上面に例えば一方の回転方向(図では時計回り方向)に湾曲した撹拌羽根14を複数有するものであり、下面の外周部に突起15を被係合部として1個のみ有している。これに対して、揚水翼13は、下面に例えば直状のポンプ羽根16を多数放射状に有するものであり、上面の外周部に突起17を係合部として1個のみ有している(図4は、突起15と突起17との個数比が1:1であることを概略的に示している)。   A rotating blade 11 is attached to the upper part of the drive shaft 9 protruding from the inner and lower parts of the inner tank 2. The rotary blade 11 is composed of two blades of a stirring blade 12 and a pumping blade 13, and these are coaxially attached to the upper part of the drive shaft 9. The agitation blade 12 has a plurality of agitation blades 14 curved in one rotation direction (clockwise direction in the figure) on the upper surface, as shown in FIG. Has only one as an engaged portion. On the other hand, the pumping blade 13 has a large number of, for example, straight pump blades 16 radially on the lower surface, and has only one protrusion 17 as an engaging portion on the outer peripheral portion of the upper surface (FIG. 4). Schematically shows that the number ratio of the protrusions 15 to the protrusions 17 is 1: 1).

しかして、図5に示すように、揚水翼13は、駆動軸9に嵌合して、該駆動軸9の外周部に形成した複数の凹条部18に、揚水翼13の中央内周部に形成した複数の凸条部19を係合させることにより、駆動軸9と一体回転するように取付けている。又、撹拌翼12は、揚水翼13の上方にて、下面の中央周りの凹部20を揚水翼13の上面の中央周りの突部21に被合して段付きねじ22により抜け止めすることによって、駆動軸9に回転可能に取付けると共に、揚水翼13に対しても回転可能に取付けている。この取付状態で、突起15は、揚水翼13が駆動軸9で回転駆動されるときの突起17の旋回位置と同一の旋回位置に存して係合するようになっている。   Thus, as shown in FIG. 5, the pumping blade 13 is fitted to the drive shaft 9, and a plurality of concave portions 18 formed on the outer peripheral portion of the drive shaft 9 are connected to the central inner peripheral portion of the pumping blade 13. The plurality of ridges 19 formed in the above are engaged so as to rotate together with the drive shaft 9. In addition, the stirring blade 12 is disposed above the pumping blade 13 by engaging the recess 20 around the center of the lower surface with the protrusion 21 around the center of the upper surface of the pumping blade 13 and preventing it from coming off with a stepped screw 22. In addition to being rotatably attached to the drive shaft 9, the drive shaft 9 is also rotatably attached to the pumping blade 13. In this attached state, the protrusion 15 is engaged at the same turning position as the turning position of the protrusion 17 when the pumping blade 13 is rotationally driven by the drive shaft 9.

又、図1に示すように、外槽1の底部の中央周りには、複数の吸水口23を形成していて、これに揚水翼13のポンプ羽根16が中央付近を近接させて臨ませている。更に、その揚水翼13のポンプ羽根16には、前記揚水路4の入水口5が側方より近接して臨んでいる。
このほか、図示しないが、洗濯機の運転全般を制御する制御装置を有している。
As shown in FIG. 1, a plurality of water inlets 23 are formed around the center of the bottom of the outer tub 1, and the pump blades 16 of the pumping blades 13 face the vicinity of the center. Yes. Further, the inlet 5 of the pumping path 4 faces the pump blade 16 of the pumping blade 13 closer to the side.
In addition, although not shown, it has a control device for controlling the overall operation of the washing machine.

次に、上記構成のものの作用を述べる。
洗濯時、洗濯物S(図1参照)が収容された内槽2の内部には、洗濯水W(図1参照)と洗剤とが図示しない供給装置により供給され、供給された洗濯水Wは、内槽2内に貯留されると共に、内槽2の脱水孔及び吸水口23を通じて外槽1内にも貯留される。
Next, the operation of the above configuration will be described.
During washing, the washing water W (see FIG. 1) and the detergent are supplied into the inner tub 2 in which the laundry S (see FIG. 1) is stored by a supply device (not shown). In addition to being stored in the inner tank 2, it is also stored in the outer tank 1 through the dewatering hole and the water inlet 23 of the inner tank 2.

この状況で、制御装置がモータ8に通電し、これを起動させることによって、揚水翼13が駆動軸9により図1に矢印Aで示すように回転駆動される。すると、揚水翼13はポンプ羽根16により、洗濯水Wを、図1に矢印Bで示すように外槽1内から吸水口23を通じ吸引して、揚水路4の入水口5から揚水路4を通じて揚げ、出水口7又は出水口6から吐出させる。この出水口7又は出水口6のいずれから吐出させるかは、そのときの洗濯水Wの貯留水位によるものであり、洗濯水Wの貯留水位が低ければ、出水口7から吐出し、洗濯水Wの貯留水位が高ければ、出水口6から吐出する。
しかして、出水口7又は出水口6から吐出された洗濯水Wは、内槽2内の洗濯物Sに上からかけられ、洗濯物Sに浸透する。
In this situation, the control device energizes and activates the motor 8, whereby the pumping blade 13 is rotationally driven by the drive shaft 9 as indicated by an arrow A in FIG. 1. Then, the pumping blade 13 uses the pump blade 16 to suck the washing water W from the outer tub 1 through the water inlet 23 as shown by the arrow B in FIG. 1 and from the water inlet 5 of the pumping channel 4 through the pumping channel 4. Deep-fried and discharged from water outlet 7 or water outlet 6. Whether the water is discharged from the water outlet 7 or the water outlet 6 depends on the stored water level of the washing water W at that time. If the stored water level of the washing water W is low, the water is discharged from the water outlet 7. If the stored water level is high, the water is discharged from the water outlet 6.
Thus, the washing water W discharged from the water outlet 7 or the water outlet 6 is applied to the laundry S in the inner tub 2 from above and penetrates into the laundry S.

そして、この場合、揚水翼13の突起17と撹拌翼12の突起15との個数比が1:1であるから、揚水翼13がほゞ1回転したところで、すなわち、揚水翼13の回転から該揚水翼13の回転のほゞ1回転時間遅延して、突起17が突起15に係合し、その係合構造を介して撹拌翼12が揚水翼13により図2に同じく矢印Aで示すように回転駆動される。従って、突起17と突起15との係合構造は、撹拌翼12を揚水翼13の回転から遅延して揚水翼13により駆動する伝動手段として機能するものである。   In this case, since the number ratio between the projections 17 of the pumping blade 13 and the projections 15 of the stirring blade 12 is 1: 1, the pumping blade 13 is rotated approximately once, that is, from the rotation of the pumping blade 13. The rotation of the pumping blade 13 is delayed by about one rotation time, and the projection 17 is engaged with the projection 15, and the stirring blade 12 is moved by the pumping blade 13 through the engagement structure as shown by the arrow A in FIG. Driven by rotation. Therefore, the engagement structure of the protrusion 17 and the protrusion 15 functions as a transmission means for driving the stirring blade 12 by the pumping blade 13 with a delay from the rotation of the pumping blade 13.

このように撹拌翼12が回転駆動されれば、内槽2内の洗濯物Sが撹拌翼12に回されると共に、撹拌翼12の回転により生ずる水流に乗っても動かされ、撹拌される。又、このときには、揚水翼13の回転も続いているので、洗濯物Sに上から洗濯水Wがかけられることが続いており、かくして、洗濯物Sに上から洗濯水Wをかけつつ、洗濯物Sを撹拌することが行われる。   If the stirring blade 12 is driven to rotate in this way, the laundry S in the inner tub 2 is rotated to the stirring blade 12 and is also moved and stirred even when riding on the water flow generated by the rotation of the stirring blade 12. At this time, since the pumping blade 13 continues to rotate, the washing water W continues to be applied to the laundry S from above, and thus the washing water W is applied to the laundry S from above. Stirring the product S is performed.

図6は、このときの制御の一例を示しており、モータ8を、120〔rpm〕の回転速度で、1秒間の正転(例えば時計回り方向の回転)をさせ、その後に0.5秒間の休止をして、1秒間の逆転(例えば時計回りとは反対の方向の回転)をさせ、その後に0.5秒間の休止をする。これを繰返すことで、各正転時及び各逆転時には、駆動軸9はそれぞれ2回転ずつする。従って、それぞれ、そのうちの最初の1回転で洗濯物に上から洗濯水をかけることのみを行い、続く1回転で洗濯物に上から洗濯水をかけつつ、洗濯物を撹拌することを行う。   FIG. 6 shows an example of the control at this time. The motor 8 is rotated forward at a rotational speed of 120 [rpm] for 1 second (for example, rotated clockwise), and thereafter 0.5 seconds. And then reverse for 1 second (for example, rotating in the direction opposite to the clockwise direction), and then rest for 0.5 second. By repeating this, the drive shaft 9 makes two rotations each time during each forward rotation and each reverse rotation. Therefore, the washing water is only applied to the laundry from the top in the first rotation, and the laundry is stirred while the washing water is applied to the laundry from the top in the subsequent rotation.

このように本構成のものでは、内槽2の底部に回転翼11を配設し、内槽2の側部に揚水路4を設けたものにおいて、回転翼11を、内槽2の内部に洗濯水と共に収容された洗濯物を撹拌する撹拌翼12と、洗濯水を揚水路4を通じ揚げて洗濯物にかける揚水翼13との2翼で構成し、それら揚水翼13と撹拌翼12とを駆動軸9に同軸に取付け、揚水翼13を駆動軸9で駆動し、撹拌翼12を揚水翼13で突起17と突起15との係合構造から成る伝動手段を介し揚水翼13の回転から遅延して駆動するようにしている。   As described above, in this configuration, the rotary blade 11 is disposed at the bottom of the inner tank 2 and the pumping path 4 is provided at the side of the inner tank 2. The agitation blades 12 for agitating the laundry stored together with the washing water and the pumping blades 13 for raising the washing water through the pumping path 4 and applying it to the laundry are composed of two wings. Coaxially attached to the drive shaft 9, the pumping blade 13 is driven by the drive shaft 9, and the stirring blade 12 is delayed from the rotation of the pumping blade 13 through the transmission means comprising the engagement structure of the projection 17 and the projection 15 by the pumping blade 13. To drive.

これにより、撹拌翼12が回転されるより早く揚水翼13が回転され、洗濯物を撹拌する前から洗濯物に洗濯水がかけられるので、それだけ多くの洗濯水を洗濯物にかけて浸透させ得るようになる。又、逆には、揚水翼13が回転されるより遅くから撹拌翼12が回転されるので、それだけ、洗濯物に与える機械力が減り、洗濯物の傷みや絡みを少なく抑え得るようになる。かくして、洗濯物の傷みや絡みを少なく抑えつつ、洗濯物に多くの量の洗濯水をかけることができるようになって、洗濯性能を上げることができる。   As a result, the pumping blade 13 is rotated faster than the stirring blade 12 is rotated, and the washing water is poured onto the laundry before the laundry is stirred, so that more washing water can permeate the laundry. Become. Conversely, since the stirring blade 12 is rotated later than the pumping blade 13 is rotated, the mechanical force applied to the laundry is reduced accordingly, and the damage and entanglement of the laundry can be suppressed to a small extent. Thus, it is possible to apply a large amount of washing water to the laundry while suppressing the damage and entanglement of the laundry, thereby improving the washing performance.

又、特に上記構成のものの場合、撹拌翼12を揚水翼13の回転から遅延して揚水翼13により駆動する伝動手段を、揚水翼13に設けた突起17と撹拌翼12に設けた突起15との係合構造としており、簡単な構成であるから、実現が容易である。
なお、突起17と突起15は、撹拌翼12と揚水翼13のそれぞれ外周部に設けており、それによって、それら突起17,15を中心側に設けるより、突起17,15が係合するときに突起17,15にかかる力を小さくできる(突起17,15にかかる力は撹拌翼12及び揚水翼13のそれぞれ中心部から突起17,15までの距離に反比例して小さくなる)ので、突起17,15の耐久性を高く得ることができる。
In particular, in the case of the above-described configuration, the transmission means for driving the stirring blade 12 by the pumping blade 13 with a delay from the rotation of the pumping blade 13 includes the projection 17 provided on the pumping blade 13 and the projection 15 provided on the stirring blade 12. Since the engagement structure is simple and the configuration is simple, it is easy to realize.
In addition, the protrusion 17 and the protrusion 15 are provided on the outer peripheral portions of the stirring blade 12 and the pumping blade 13, respectively, so that when the protrusions 17 and 15 are engaged rather than providing the protrusions 17 and 15 on the center side. Since the force applied to the protrusions 17 and 15 can be reduced (the force applied to the protrusions 17 and 15 decreases in inverse proportion to the distance from the center of each of the stirring blade 12 and the pumping blade 13 to the protrusions 17 and 15). High durability of 15 can be obtained.

以上に対して、図7ないし図13は本発明の第2ないし第6実施例(第2ないし第6の実施形態)を示すもので、第1実施例と同一の部分には同一の符号を付して説明を省略し、異なる部分についてのみ述べる。   7 to 13 show the second to sixth examples (second to sixth embodiments) of the present invention. The same reference numerals are used for the same parts as in the first example. A description will be omitted, and only different parts will be described.

[第2実施例]
図7に示す第2実施例においては、撹拌翼12に突起15を2個、180度角隔てて設け、突起15と揚水翼13の突起17との個数比を2:1としている。
このようにすることにより、揚水翼13がほゞ半回転したところで、すなわち、揚水翼13の回転から該揚水翼13の回転のほゞ半回転時間遅延して、突起17が突起15に係合し、その係合構造を介して撹拌翼12が揚水翼13により回転駆動される。
[Second Embodiment]
In the second embodiment shown in FIG. 7, two protrusions 15 are provided on the stirring blade 12 at an angle of 180 degrees, and the number ratio between the protrusion 15 and the protrusion 17 of the pumping blade 13 is 2: 1.
By doing so, the projection 17 is engaged with the projection 15 when the pumping blade 13 is rotated approximately half, that is, the rotation of the pumping blade 13 is delayed from the rotation of the pumping blade 13 by approximately a half rotation time. Then, the stirring blade 12 is rotationally driven by the pumping blade 13 through the engagement structure.

従って、このものの場合には、揚水翼13の回転から撹拌翼12の回転が始まるのが、第1実施例よりも揚水翼13のほゞ半回転時間早まり、洗濯物を撹拌する前に洗濯物に洗濯水をかける時間がその揚水翼13のほゞ半回転時間短くなる。よって、それだけ、洗濯物を撹拌する前に洗濯物に洗濯水をかける時間が短くなるが、揚水翼13が洗濯水を揚水路4を通じて揚げる揚水能力は、揚水翼13の大きさ(ポンプ羽根16の大きさ)等によって異なるから、このようにして、洗濯物を撹拌する前に洗濯物にかける洗濯水の量を調整することができる。   Therefore, in this case, the rotation of the stirring blade 12 from the rotation of the pumping blade 13 is approximately half a rotation time earlier than that of the first embodiment, and the laundry is stirred before the laundry is stirred. The time for which the washing water is applied to the pump is shortened by about a half rotation time of the pumping wing 13. Therefore, the time for applying the washing water to the laundry before stirring the laundry is shortened, but the pumping capacity of the pumping blade 13 to pump the washing water through the pumping path 4 is the size of the pumping blade 13 (pump blade 16 In this way, the amount of washing water applied to the laundry can be adjusted before the laundry is agitated.

[第3実施例]
図8に示す第3実施例においては、撹拌翼12に突起15を4個、90度角隔てて設け、突起15と揚水翼13の突起17との個数比を4:1としている。
このようにすることにより、揚水翼13がほゞ1/4回転したところで、すなわち、揚水翼13の回転から該揚水翼13の回転のほゞ1/4回転時間遅延して、突起17が突起15に係合し、その係合構造を介して撹拌翼12が揚水翼13により回転駆動される。
[Third embodiment]
In the third embodiment shown in FIG. 8, four protrusions 15 are provided on the stirring blade 12 at a 90-degree angle, and the number ratio of the protrusions 15 to the protrusions 17 of the pumping blades 13 is 4: 1.
By doing so, when the pumping blade 13 is rotated approximately 1/4, that is, the rotation of the pumping blade 13 is delayed by about 1/4 rotation time from the rotation of the pumping blade 13, the projection 17 is projected. 15, and the stirring blade 12 is rotationally driven by the pumping blade 13 through the engagement structure.

従って、このものの場合には、揚水翼13の回転から撹拌翼12の回転が始まるのが、第1実施例よりも揚水翼13のほゞ3/4回転時間早まり、洗濯物を撹拌する前に洗濯物に洗濯水をかける時間がその揚水翼13のほゞ3/4回転時間短くなる。洗濯物を撹拌する前に洗濯物にかける洗濯水の量は、このように調整しても良い。   Therefore, in this case, the rotation of the stirring blade 12 from the rotation of the pumping blade 13 is about 3/4 times faster than the first embodiment, and before the laundry is stirred. The time for applying the washing water to the laundry is shortened by about 3/4 rotation time of the pumping wing 13. The amount of washing water applied to the laundry before stirring the laundry may be adjusted in this way.

又、このものの場合、突起15は2個を90度角隔てて設けるだけでも良いが、4個をそれぞれ90度角隔てて設けたことにより、その2個ずつのいずれの間にも揚水翼13の突起17を位置させることができるので、突起15に対する突起17の配置、ひいては揚水翼13に対する撹拌翼12の組立てが容易にできるようになる。
なお、第1実施例から、これら第2、第3実施例のものをも含めて、回転翼11の1回の回転角度は、360/突起個数以上とする必要がある。
In this case, the two protrusions 15 may be provided with a 90-degree angle apart, but by providing four with a 90-degree angle each, the pumping blade 13 is provided between each of the two projections 15. Therefore, the arrangement of the protrusion 17 with respect to the protrusion 15 and the assembly of the stirring blade 12 with respect to the pumping blade 13 can be facilitated.
From the first embodiment, including the ones of the second and third embodiments, the rotation angle of the rotary blade 11 needs to be 360 / the number of protrusions or more.

[第4実施例]
図9ないし図11に示す第4実施例においては、駆動軸9の負荷を検知する負荷検知手段として、モータ8に流れる電流を検知する電流センサ31を具えると共に、駆動軸9の回転位置、ひいては揚水翼13の回転位置を検知する回転位置検知手段として、ホールIC32を具え、これらの検知信号を例えばDSP(デジタルシグナルプロセッサ)から成る制御装置33に入力するようにしている。
[Fourth embodiment]
In the fourth embodiment shown in FIGS. 9 to 11, the load detecting means for detecting the load of the drive shaft 9 includes a current sensor 31 for detecting the current flowing through the motor 8, and the rotational position of the drive shaft 9. As a result, as a rotational position detecting means for detecting the rotational position of the pumping wing 13, a Hall IC 32 is provided, and these detection signals are input to a control device 33 composed of, for example, a DSP (digital signal processor).

そして、それらの入力並びにあらかじめ記憶された制御プログラムに基づき、制御装置33が、モータ駆動回路34を介してモータ8に駆動制御信号を与えるようにしている。
具体的には、この場合、図10に示すように、制御装置33が、最初(洗濯物撹拌前)に、モータ8に例えば1秒間に10度角回転するように駆動制御信号を与えることにより、駆動軸9を洗濯物撹拌時より低速で回転させる(ステップS1)。この状況で、次に、電流センサ31によるモータ電流の検知結果から、モータ8に流れている電流が所定値以上であるか否かの判断をする(ステップS2)。
Based on these inputs and a control program stored in advance, the control device 33 gives a drive control signal to the motor 8 via the motor drive circuit 34.
Specifically, in this case, as shown in FIG. 10, the control device 33 gives a drive control signal to the motor 8 so as to rotate, for example, 10 degrees per second for 1 second (before washing agitation). The drive shaft 9 is rotated at a lower speed than when the laundry is stirred (step S1). Next, in this situation, it is determined from the detection result of the motor current by the current sensor 31 whether or not the current flowing through the motor 8 is greater than or equal to a predetermined value (step S2).

ここで、モータ8に流れる電流は、揚水翼13の突起17が撹拌翼12の突起15に係合するまでは小さく、係合したときには大きくなる。上述のステップS2における所定値は、その揚水翼13の突起17が撹拌翼12の突起15に係合したとき(駆動軸9の負荷が大きくなったとき)にモータ8に流れる電流であり、従って、ステップS2でモータ8に流れている電流が所定値以上である(YES)と判断されれば、揚水翼13の突起17が撹拌翼12の突起15に係合したと判断され、このときの駆動軸9の回転位置をホールIC32の検知結果から検出する(ステップS3)。   Here, the current flowing through the motor 8 is small until the protrusion 17 of the pumping blade 13 engages with the protrusion 15 of the stirring blade 12 and increases when engaged. The predetermined value in step S2 described above is the current that flows to the motor 8 when the protrusion 17 of the pumping blade 13 is engaged with the protrusion 15 of the stirring blade 12 (when the load on the drive shaft 9 increases), and accordingly. If it is determined in step S2 that the current flowing through the motor 8 is greater than or equal to a predetermined value (YES), it is determined that the protrusion 17 of the pumping blade 13 is engaged with the protrusion 15 of the stirring blade 12, and at this time The rotational position of the drive shaft 9 is detected from the detection result of the Hall IC 32 (step S3).

その後、モータ8(駆動軸9)を停止させ(ステップS4)、反転させる。
図11は、その後の制御内容を示しており、モータ8を100〔rpm〕で回転させてから、揚水翼13の突起17が撹拌翼12の突起15に係合する回転位置に達するときには、その直前からモータ8の回転速度を0〔rpm〕近くまで減じ、揚水翼13の突起17が撹拌翼12の突起15に係合する回転位置に達して以後、モータ8の回転速度を150〔rpm〕にまで増す。
Thereafter, the motor 8 (drive shaft 9) is stopped (step S4) and reversed.
FIG. 11 shows the contents of the subsequent control. When the motor 17 is rotated at 100 [rpm] and reaches the rotational position where the projection 17 of the pumping blade 13 engages the projection 15 of the stirring blade 12, The rotational speed of the motor 8 is reduced to near 0 [rpm] from immediately before, and the rotational speed of the motor 8 is reduced to 150 [rpm] after reaching the rotational position where the projection 17 of the pumping blade 13 engages the projection 15 of the stirring blade 12. It increases to.

そして、その後、モータ8を停止(休止)させ、次いで、反転させる。この反転についても、モータ8を100〔rpm〕で回転させてから、揚水翼13の突起17が撹拌翼12の突起15に係合する回転位置に達するときには、その直前からモータ8の回転速度を0〔rpm〕近くまで減じ、揚水翼13の突起17が撹拌翼12の突起15に係合する回転位置に達して以後、モータ8の回転速度を150〔rpm〕にまで増す。
以上を繰返すもので、すなわち、この場合、反転するごとの、揚水翼13の突起17が撹拌翼12の突起15に係合するときの駆動軸9の回転速度を低回転速度に設定している。
Thereafter, the motor 8 is stopped (paused) and then reversed. Also for this reversal, when the motor 8 is rotated at 100 [rpm] and then reaches the rotational position where the projection 17 of the pumping blade 13 engages the projection 15 of the stirring blade 12, the rotational speed of the motor 8 is increased immediately before that. After decreasing to near 0 [rpm] and reaching the rotational position where the protrusion 17 of the pumping blade 13 engages the protrusion 15 of the stirring blade 12, the rotational speed of the motor 8 is increased to 150 [rpm].
That is, the rotation speed of the drive shaft 9 when the protrusion 17 of the pumping blade 13 is engaged with the protrusion 15 of the stirring blade 12 every time it is reversed is set to a low rotation speed. .

このようにすることにより、揚水翼13の突起17が撹拌翼12の突起15に係合するときの衝撃を和らげ、衝突音の発生をなくし得ると共に、突起17,15の耐久性を一段と高く得ることができる。   By doing so, the impact when the projection 17 of the pumping blade 13 engages with the projection 15 of the stirring blade 12 can be reduced, the generation of collision noise can be eliminated, and the durability of the projections 17 and 15 can be further increased. be able to.

[第5実施例]
図12に示す第5実施例においては、揚水翼13の突起17と撹拌翼12の突起15との個数比が1:1のものにおいて、洗濯時、最初に、モータ8を例えば120〔rpm〕の回転速度で0.4秒間回転させることで、0.8回転させ、これを正逆両方向に1回ずつ行うことにより、揚水翼13の回転だけを正逆両方向に1回ずつ行い、その後に、モータ8を例えば120〔rpm〕の回転速度で1秒間回転させることで、2回転させ、揚水翼13から撹拌翼12に駆動力を伝達して該撹拌翼12の回転を行うことを正逆両方向に交互に続ける。
[Fifth embodiment]
In the fifth embodiment shown in FIG. 12, when the number ratio of the projections 17 of the pumping blade 13 and the projections 15 of the stirring blade 12 is 1: 1, the motor 8 is first set to 120 [rpm], for example, at the time of washing. By rotating at a rotational speed of 0.4 second for 0.8 second and performing this once each in the forward and reverse directions, so that only the pumping blade 13 is rotated once in both forward and reverse directions, and thereafter The motor 8 is rotated at a rotational speed of 120 [rpm] for 1 second, for example, so that the motor 8 is rotated twice so that the driving force is transmitted from the pumping blade 13 to the stirring blade 12 to rotate the stirring blade 12. Continue alternately in both directions.

このようにすることにより、洗濯物を撹拌する前に洗濯物にかける洗濯水の量を増すことができる。
なお、この場合、最初の揚水翼13の回転だけを正逆両方向に行うのは、少なくとも1回ずつであれば良いもので、1回ずつ以上であっても良い。
By doing so, it is possible to increase the amount of washing water applied to the laundry before stirring the laundry.
In this case, the first rotation of the pumping wing 13 may be performed in both forward and reverse directions at least once, and may be performed once or more.

[第6実施例]
図13に示す第6実施例においては、上記第5実施例のものにおいて、揚水翼13から撹拌翼12に駆動力を伝達して該撹拌翼12の回転を行うときに、モータ8の回転速度を例えば120〔rpm〕から150〔rpm〕に上げて撹拌翼12の回転速度を増すようにしている。
このようにすることにより、洗濯物の撹拌をより盛んに行い、洗濯性能を上げることができる。
このほか、本発明は上記し且つ図面に示した実施例にのみ限定されるものではなく、要旨を逸脱しない範囲内で適宜変更して実施し得る。
[Sixth embodiment]
In the sixth embodiment shown in FIG. 13, when the driving force is transmitted from the pumping blade 13 to the stirring blade 12 to rotate the stirring blade 12 in the fifth embodiment, the rotation speed of the motor 8 is increased. For example, the rotation speed is increased from 120 [rpm] to 150 [rpm] to increase the rotational speed of the stirring blade 12.
By doing in this way, laundry can be stirred more actively and washing performance can be raised.
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within a range not departing from the gist.

本発明の第1実施例を示す、揚水翼のみ駆動状態の概略縦断面図1 is a schematic longitudinal sectional view of a pumping blade only in a driven state, showing a first embodiment of the present invention. 揚水翼及び撹拌翼駆動状態の概略縦断面図Schematic longitudinal sectional view of pumping blade and stirring blade drive state 回転翼(撹拌翼、揚水翼)の斜視図Perspective view of rotor blade (stirring blade, pumping blade) モータ及び回転翼の概略斜視図Schematic perspective view of motor and rotor blades 駆動軸及び回転翼の縦断面図Longitudinal section of drive shaft and rotor blade 洗濯時の回転翼駆動のタイムチャートTime chart of rotating blade drive during washing 本発明の第2実施例を示す図4相当図FIG. 4 equivalent view showing a second embodiment of the present invention. 本発明の第3実施例を示す図4相当図FIG. 4 equivalent view showing a third embodiment of the present invention. 本発明の第4実施例を示す概略電気構成図Schematic electrical configuration diagram showing a fourth embodiment of the present invention フローチャートflowchart 図6相当図6 equivalent diagram 本発明の第5実施例を示す図6相当図FIG. 6 equivalent view showing the fifth embodiment of the present invention. 本発明の第6実施例を示す図6相当図FIG. 6 equivalent view showing the sixth embodiment of the present invention.

符号の説明Explanation of symbols

図面中、2は内槽(洗濯槽)、4は揚水路、8はモータ、9は駆動軸、11は回転翼、12は撹拌翼、13は揚水翼、15は突起(伝動手段、被係合部)、17は突起(伝動手段、係合部)、31は電流センサ(負荷検知手段)、32はホールIC(回転位置検知手段)、33は制御装置を示す。   In the drawings, 2 is an inner tub (washing tub), 4 is a pumping path, 8 is a motor, 9 is a drive shaft, 11 is a rotating blade, 12 is a stirring blade, 13 is a pumping blade, 15 is a protrusion (transmission means, engaged) , 17 is a protrusion (transmission means, engaging portion), 31 is a current sensor (load detection means), 32 is a Hall IC (rotational position detection means), and 33 is a control device.

Claims (4)

洗濯槽の内下部に回転翼を配設し、洗濯槽の側部に揚水路を設けたものにおいて、
前記回転翼を、前記洗濯槽の内部に洗濯水と共に収容された洗濯物を撹拌する撹拌翼と、前記洗濯水を前記揚水路を通じ揚げて前記洗濯物にかける揚水翼とで構成し、
それら揚水翼と撹拌翼とを駆動軸に同軸に取付け、
揚水翼を駆動軸で駆動し、
撹拌翼を揚水翼で伝動手段を介し揚水翼の回転から遅延して駆動するようにしたことを特徴とする洗濯機。
In the one where the rotor blades are arranged in the lower part of the washing tub and the pumping path is provided on the side of the washing tub
The rotary blade is composed of a stirring blade that stirs laundry stored together with washing water in the washing tub, and a pumping blade that lifts the washing water through the pumping path and applies the laundry to the laundry.
These pumping blades and stirring blades are coaxially mounted on the drive shaft,
Drive the pumping wing with the drive shaft,
A washing machine, wherein a stirring blade is driven by a pumping blade with a delay from rotation of the pumping blade via a transmission means.
伝動手段が、揚水翼に設けた係合部と、撹拌翼に設けた被係合部との係合構造から成ることを特徴とする請求項1記載の洗濯機。   The washing machine according to claim 1, wherein the transmission means comprises an engaging structure of an engaging portion provided on the pumping blade and an engaged portion provided on the stirring blade. 駆動軸の負荷を検知する負荷検知手段を具備し、駆動軸を洗濯物撹拌前に撹拌時より低速で回転させての前記負荷検知手段の検知結果から係合部が被係合部に係合するときの回転位置を検出し、それに基づき、反転するごとの、係合部が被係合部に係合するときの駆動軸の回転速度を低回転速度に設定することを特徴とする請求項2記載の洗濯機。   Load detecting means for detecting the load on the drive shaft is provided, and the engaging portion is engaged with the engaged portion from the detection result of the load detecting means when the drive shaft is rotated at a lower speed than when stirring before washing the laundry. The rotation position of the drive shaft is detected, and the rotation speed of the drive shaft when the engagement portion engages with the engaged portion is set to a low rotation speed each time the rotation position is reversed based on the rotation position. 2. The washing machine according to 2. 揚水翼の回転だけを正逆両方向に1回ずつ以上行い、その後に、揚水翼から伝動手段を介しての撹拌翼の駆動を行うことを特徴とする請求項1記載の洗濯機。

2. The washing machine according to claim 1, wherein the rotation of the pumping blade is performed at least once in both forward and reverse directions, and thereafter the stirring blade is driven from the pumping blade through the transmission means.

JP2005042224A 2005-02-18 2005-02-18 Washing machine Pending JP2006223638A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010022871A (en) * 2007-07-03 2010-02-04 Panasonic Corp Washing machine
WO2015117529A1 (en) * 2014-02-06 2015-08-13 海尔亚洲国际株式会社 Washing machine
CN105297327A (en) * 2015-10-30 2016-02-03 无锡飞翎电子有限公司 Pulsator washing machine, control method of pulsator washing machine and power-driven system of pulsator washing machine
JP2020048776A (en) * 2018-09-26 2020-04-02 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. Washing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010022871A (en) * 2007-07-03 2010-02-04 Panasonic Corp Washing machine
WO2015117529A1 (en) * 2014-02-06 2015-08-13 海尔亚洲国际株式会社 Washing machine
CN105297327A (en) * 2015-10-30 2016-02-03 无锡飞翎电子有限公司 Pulsator washing machine, control method of pulsator washing machine and power-driven system of pulsator washing machine
CN105297327B (en) * 2015-10-30 2019-01-04 无锡飞翎电子有限公司 Rotary drum washing machine and its control method and power-driven system
JP2020048776A (en) * 2018-09-26 2020-04-02 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. Washing machine
JP7123318B2 (en) 2018-09-26 2022-08-23 青島海爾洗衣机有限公司 washing machine

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