JPH0417898A - Operation control of washing machine - Google Patents
Operation control of washing machineInfo
- Publication number
- JPH0417898A JPH0417898A JP2121340A JP12134090A JPH0417898A JP H0417898 A JPH0417898 A JP H0417898A JP 2121340 A JP2121340 A JP 2121340A JP 12134090 A JP12134090 A JP 12134090A JP H0417898 A JPH0417898 A JP H0417898A
- Authority
- JP
- Japan
- Prior art keywords
- water level
- sensing
- stirring
- pulse
- washing
- 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.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000013019 agitation Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 abstract description 26
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000012209 synthetic fiber Substances 0.000 description 14
- 229920002994 synthetic fiber Polymers 0.000 description 14
- 229920000742 Cotton Polymers 0.000 description 11
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、洗たく機の布量検出方法に係り、特に布量検
出後の洗たく水位の制御に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for detecting the amount of cloth in a washing machine, and particularly to controlling the washing water level after detecting the amount of cloth.
従来、布量センシングは、通常洗たく水位より低い水位
を設定し、いわゆるセンシング水位でセンシング撹拌を
行ない、撹拌ＯＦＦ時のモータ惰性回転時のコンデンサ
端子電圧の変化で布量を決定し、洗たく水位を設定して
いた。このセンシング法は、衣類が充分に水を吸水する
ような操作を行なっているため、衣類の吸水性によって
、結果が異なる。従って、同し衣類量であっても、例え
ば、木綿と化繊では吸水量の違いによりセンシング結果
が異なる。このため化繊類の場合は木綿類に較べ、布量
が少ない方向にセンシングされ水位が低目に設定される
。通常全ての衣類に対して充分な洗たく水量を与える必
要があるため、化繊類の水位をカバーするために、木綿
類に対しては、水位が高めになるよう設定せざるを得ず
、効率的な洗たく条件をすべての衣類に与えることは困
難であった。Conventionally, in cloth amount sensing, a water level is set lower than the normal water level for washing, and sensing agitation is performed at the so-called sensing water level.The amount of cloth is determined by the change in capacitor terminal voltage during motor inertia rotation when stirring is OFF, and the water level to be washed is determined. It was set. In this sensing method, the clothing absorbs enough water, so the results vary depending on the water absorbency of the clothing. Therefore, even if the amount of clothing is the same, for example, the sensing results will differ between cotton and synthetic fibers due to the difference in water absorption. For this reason, in the case of synthetic fibers, sensing is performed in the direction of a smaller amount of cloth than in the case of cotton, and the water level is set lower. Normally, it is necessary to provide a sufficient amount of water for washing all clothes, so in order to cover the water level for synthetic fibers, the water level for cotton items must be set higher, which is not efficient. It has been difficult to provide all clothing with suitable washing conditions.
従来は、布質に対して適正な水位を制御するようには配
慮されておらず、経済的、効率的な洗たくを行なうため
には問題があった。Conventionally, no consideration has been given to controlling the water level appropriately for the fabric quality, which has caused problems in economical and efficient washing.
本発明は、布質を検出し、適正な洗たく水位を設定、経
済的、効率的な洗たく条件を提供することにある。The purpose of the present invention is to detect the fabric quality, set an appropriate washing water level, and provide economical and efficient washing conditions.
上記目的を達成するために、センシング撹拌ＯＦＦ後の
コンデンサ端子電圧の変化が、同じ衣類でも、センシン
グする水位によって異なり、かつその変化状態が布質に
よっても変わることに着目し、−次センシング水位、二
次センシング水位を設けて、各水位でのセンシング結果
より最終洗たく水位を決定するようにしたものである。In order to achieve the above objective, we focused on the fact that the change in capacitor terminal voltage after sensing agitation is turned off varies depending on the sensing water level even for the same clothing, and that the state of change also changes depending on the fabric quality. A secondary sensing water level is provided, and the final washing water level is determined from the sensing results at each water level.
一次センシングと二次センシングの結果より、木綿、化
繊のおおまかな認識が可能となるので、その結果より、
洗たく水流９時間、すすぎ回数。From the results of primary sensing and secondary sensing, it is possible to roughly recognize cotton and synthetic fibers;
9 hours of water flow, rinsing times.
脱水時間等を制御し、布量、布質に対応した好適な洗た
く状態を提供できる。By controlling the dehydration time, etc., it is possible to provide suitable washing conditions corresponding to the amount and quality of the cloth.
本発明の一実施例と図面に基づいて説明する。 An embodiment of the present invention will be explained based on the drawings.
本発明の一実施例を採用した洗たく機は、第１図に示す
ように、鋼板製の外枠１内には吊り棒２およびコイルば
ねや弾性ゴム部材からなる防振装置３によって合成樹脂
製の外槽４を吊架する構成となっている。吊り捧２及び
防振装置３は４個設ける。洗たくするための水を溜める
外槽４内には、合成樹脂製の洗たく着脱水槽５を回転自
在に設ける。洗たく着脱水槽５には多数の脱水孔５ａを
設け、中央底部にはパルセータ若しくはアジテータから
なる撹拌翼６を回転自在に設ける。洗い作業及びすすぎ
作業時には洗たく着脱水槽５を静止させ、撹拌翼６を時
計方向及び反時計方向に反転回動させる。また脱水運転
時は、洗たく着脱水槽を一方向に回転させる。撹拌翼６
及び、洗たく着脱水槽５の回転は、駆動装置７により行
なわれる。As shown in FIG. 1, a washing machine employing an embodiment of the present invention has a suspension rod 2 and a vibration isolator 3 made of a coil spring or an elastic rubber member in an outer frame 1 made of a steel plate. The structure is such that the outer tank 4 is suspended. Four hanging beams 2 and four vibration isolators 3 are provided. A synthetic resin washable water tank 5 is rotatably provided in an outer tank 4 that stores water for washing. A large number of dehydrating holes 5a are provided in the washing/dehydrating tank 5, and a stirring blade 6 consisting of a pulsator or an agitator is rotatably provided at the center bottom. During washing and rinsing operations, the washing attachment/detachment water tank 5 is kept stationary, and the stirring blades 6 are reversely rotated clockwise and counterclockwise. In addition, during dewatering operation, the washing/detaching tank is rotated in one direction. Stirring blade 6
The rotation of the washable and detachable water tank 5 is performed by a drive device 7.
駆動装置７はモータ８とこのモータ８の回転を撹拌翼６
若しくは洗たく着脱水槽５に伝達するためのプーリー９
ａやベルト９ｂからなる伝達手段９と、洗い及びすすぎ
時に撹拌翼６のみを回転させたりあるいは、脱水時に洗
たく着脱水槽５を回転させたりするクラッチ装置１０と
その切替えを行なうソレノイド７ａと排水を司どる排水
装置１２とからなる。The drive device 7 includes a motor 8 and a stirring blade 6 that controls the rotation of the motor 8.
Or a pulley 9 for transmitting the water to the detachable water tank 5.
a and a belt 9b, a clutch device 10 that rotates only the agitating blade 6 during washing and rinsing, or rotates the washing attachment/detachment tank 5 during dehydration, a solenoid 7a that performs switching, and a solenoid 7a that controls drainage. It consists of a drainage device 12.
駆動装置７は、外槽４の底面に鋼板製の支持板１５を用
いて固定する。外槽４には外槽４内の水の圧力を水位セ
ンサー２６に伝達するチューブ２７を接続する導入口４
Ｃが設けである。The drive device 7 is fixed to the bottom surface of the outer tank 4 using a support plate 15 made of a steel plate. The outer tank 4 has an inlet 4 that connects a tube 27 that transmits the pressure of water in the outer tank 4 to a water level sensor 26.
C is provided.
外枠１の上部には洗たく物を投入する投入口１９ａとコ
ントローラー等の電気部品を収納する操作箱１９ｂとを
形成した合成樹脂製のトップカバー１９が設けである。A top cover 19 made of synthetic resin is provided on the top of the outer frame 1, and has an input port 19a into which items to be washed are placed, and an operation box 19b in which electrical components such as a controller are stored.
投入口１９ａには合成樹脂製のフタ２０を設ける。A lid 20 made of synthetic resin is provided on the inlet 19a.
操作箱１９ｂの上面には操作パネル２１が取付けてあり
、操作箱１９ｂ内には給水電磁弁２４を設ける。An operation panel 21 is attached to the upper surface of the operation box 19b, and a water supply solenoid valve 24 is provided inside the operation box 19b.
操作箱１９ｂに配置した水位センサー２６は外槽４内の
水の圧力を検出することにより、規定水位まで水が溜っ
たかどうか判定する。水位センサ２６は、コア、コイル
、ばね等から構成される。A water level sensor 26 disposed in the operation box 19b detects the pressure of water in the outer tank 4 to determine whether the water has accumulated to a specified water level. The water level sensor 26 is composed of a core, a coil, a spring, and the like.
洗たく、すすぎ、脱水等を制御するコントローラ一部は
収納箱３１内に配置する。A part of the controller that controls washing, rinsing, dehydration, etc. is placed inside the storage box 31.
操作パネル２１には、電源スイツチボタン２９及び外部
操作スイッチ類が配置されている。A power switch button 29 and external operation switches are arranged on the operation panel 21.
第２図は、操作パネル２１を示したものである。FIG. 2 shows the operation panel 21. As shown in FIG.
以上の構成において、電源スイツチボタン２９を押して
電源スィッチをＯＮＬ、外部操作スイッチの「センサー
（標＄）」ボタンを押すと、コントローラーからの信号
で、給水電磁弁２４に通電され、洗たく着脱水槽５に通
電される。この時ソレノイド７ａにも通電され脱水モー
ドとなり、モータ８には、０．５ 秒ＯＮ、４秒ＯＦＦ
で通電され、洗たく着脱水槽５はゆるやかな回転で一方
向に回転し、槽内の洗たく物に均一に給水の水が掛かる
ようにしている。In the above configuration, when the power switch button 29 is pressed to turn the power switch ONL and the "sensor (standard $)" button of the external operation switch is pressed, the water supply solenoid valve 24 is energized by a signal from the controller, and the washing/detaching water tank 5 is energized. At this time, the solenoid 7a is also energized and enters dehydration mode, and the motor 8 is turned on for 0.5 seconds and turned off for 4 seconds.
energized, the washing attachment/detachment water tank 5 rotates slowly in one direction so that the items to be washed in the tank are uniformly sprayed with water.
このような動作をさせることにより、槽内の衣類は湿布
と乾布が混在せず、完全湿布状態にて布量を検知するた
め、精度向上が図れる。By performing such an operation, the amount of clothing in the tank is not mixed with compressed cloth and dry cloth, and the amount of cloth is detected in a completely compressed state, so that accuracy can be improved.
又、センシング水位までの給水を水位センサーが検知す
ると、給水電磁弁２４．ソレノイド７ａへの通電を停止
し、モータ８へ通電し撹拌を行なう。この時クラッチ装
置１１０は、脱水動作モードとなっているため、クラッ
チ装置１０を確実に洗い動作モードとするよう、洗たく
兼脱水槽を適正位置まで回動させる。これは、衣類を傷
めることのないように、布量検出撹拌より強く、通常の
洗たく撹拌より弱い撹拌水流、すなわち、０．５秒０Ｎ
−０，５秒ＯＦＦを８秒間動作させた後布量検出撹拌を
行なう。Also, when the water level sensor detects water supply up to the sensing water level, the water supply solenoid valve 24. The energization to the solenoid 7a is stopped, and the motor 8 is energized to perform stirring. At this time, the clutch device 110 is in the dewatering operation mode, so the washing and dehydrating tank is rotated to an appropriate position to ensure that the clutch device 10 is in the washing operation mode. This is a stirring water flow that is stronger than cloth amount detection stirring and weaker than normal washing stirring, that is, 0N for 0.5 seconds, so as not to damage the clothes.
After operating -0.5 seconds OFF for 8 seconds, cloth amount detection stirring is performed.
布量検出行程は、０．４秒０Ｎ−１秒○ＦＦの反転撹拌
を行なわせ、撹拌ＯＦＦ時の撹拌翼６が惰性にて回転し
た時のモータ８の逆起電力をモータ８駆動用コンデンサ
８ａの端子電圧にて検知し、これを直流矩形波パルスに
変換し、このノ（シス間の時間ｔｌ を測定して布量を
判定するものである。In the cloth amount detection process, reverse stirring is performed from 0N to 1 second FF for 0.4 seconds, and the back electromotive force of the motor 8 when the stirring blade 6 rotates by inertia when stirring is OFF is transferred to the capacitor for driving the motor 8. The amount of cloth is determined by detecting the terminal voltage of 8a, converting it into a DC rectangular wave pulse, and measuring the time tl between the pulses.
すなわち、洗たく物が多い場合は撹拌翼６への抵抗が大
きいため、惰性回転が妨げられ、）（シス間の時間し１
は長くなり、洗たく物の量が少ない場合には逆にパルス
間の時間ｔ１は短くなる。In other words, when there are many things to wash, the resistance to the stirring blades 6 is large, which prevents inertia rotation, and the time between
If the amount of laundry to be washed is small, the time t1 between pulses becomes short.
第３図は、モータ８の駆動用コンデンサ８ａの端子電圧
をパルスに変換する回路であり、回路中のＶｌ、Ｖｏの
関係を時間変化とともに表わした図が第４図である。こ
の図は比較的洗たく負荷が少ない状態を表わしたもので
、モータ８ＯＦＦ後の１発目のパルス■と２発目のパル
ス＠の立上り時間幅ｊｌを計測しこれを１０回繰返し、
合計の時間Σ１＋ を予めマイコンに記憶させた、洗た
く量と時間幅データとを比較し、第１回目の洗たく量セ
ンシングデータを得る。FIG. 3 shows a circuit that converts the terminal voltage of the driving capacitor 8a of the motor 8 into pulses, and FIG. 4 is a diagram showing the relationship between Vl and Vo in the circuit as well as changes over time. This figure shows a state where the washing load is relatively small, and the rising time width jl of the first pulse ■ and the second pulse @ after the motor 8 is turned off is measured, and this is repeated 10 times.
The total time Σ1+ is stored in advance in the microcomputer, and the washing amount and time width data are compared to obtain the first washing amount sensing data.
次ニ１例えば第１回目のセンシング結果が中水位と判定
された場合（これは、定格負荷量のおおよそ５〜７割負
荷に対応するものであるが、）、給水電磁弁２４へ通電
を開始し、給水を再開し水位センサーが中水位を検出す
るまで継続する。中水位まで給水後、第２回目のセンシ
ング撹拌を行なう。撹拌時限は０．４ 秒０Ｎ−１秒Ｏ
ＦＦと第１回目センシング撹拌反転時限と同じである。Next D1 For example, if the first sensing result is determined to be a medium water level (this corresponds to approximately 50 to 70% of the rated load), energization to the water supply solenoid valve 24 is started. Then, water supply is resumed and continues until the water level sensor detects the middle water level. After water is supplied to the middle water level, the second sensing stirring is performed. Stirring time limit is 0.4 seconds 0N-1 seconds O
It is the same as the FF and the first sensing stirring reversal time period.
第２回目のセンシング撹拌について第５図に基づいて説
明する。図は、衣類量を定格の６割とした場合の、セン
シング水位（横軸）とパルス時間幅Σｔｚ（縦軸）の関
係を木綿、化繊および木綿。The second sensing stirring will be explained based on FIG. 5. The figure shows the relationship between sensing water level (horizontal axis) and pulse time width Σtz (vertical axis) for cotton, synthetic fiber, and cotton when the amount of clothing is 60% of the rated value.
化繊の混合布の場合とを示しである。又、右側に示した
水位は、第１回目センシング（センシング水位）のパル
ス時間幅Σｔに対する設定水位を表わしたものである。The figure shows the case of a synthetic fiber mixed fabric. Further, the water level shown on the right side represents the set water level with respect to the pulse time width Σt of the first sensing (sensing water level).
この図から、センシング水位とパルス時間幅の関係は木
綿と化繊では異なる。From this figure, the relationship between sensing water level and pulse time width is different for cotton and synthetic fibers.
即ち、センシング水位でのΣｔ１は木綿の場合高水位域
に対し化繊は中水位域であり、また、水位を上げてのパ
ルス時間幅の変化も、変化率で０２〉θ１の関係にある
。これは木綿と化繊とでは、同じ衣類量であっても、吸
水量が異なるため、木綿に較べ化繊は軽く検出され易い
ことを意味する。That is, Σt1 at the sensing water level is in the high water level range for cotton, while it is in the medium water level range for synthetic fibers, and the change in pulse time width when the water level is raised also has a relationship of 02>θ1 in terms of rate of change. This means that cotton and synthetic fibers have different amounts of water absorption even when the amount of clothing is the same, so synthetic fibers are lighter and easier to detect than cotton.
さて、中水位でのセンシング結果、パルス時間幅Σｔ２
はセンシング水位でのパルス時間幅Σｔｌとは、変化率
θ１なる関係がある。従って洗たく衣類は化繊類が多い
ことになりセンシング水位で得られたΣｔ１の結果の中
水位では適正でないことを意味することになり、ここで
高水位に設定をし直すように制御するものである。Now, the sensing result at the middle water level is the pulse time width Σt2
There is a relationship between the pulse time width Σtl at the sensing water level and the rate of change θ1. Therefore, the clothes to be washed are often made of synthetic fibers, which means that the medium water level of Σt1 obtained from the sensing water level is not appropriate, and the control is performed to reset the setting to a high water level. .
要約すると化繊類の場合は、センシング水位で設定した
水位をワンランク補正するように制御し適正な洗たく条
件を提供するようにしたものである。In summary, in the case of synthetic fibers, the water level set by the sensing water level is controlled to be corrected by one rank to provide appropriate washing conditions.
本実施例では化繊のみの場合のパルス時間幅の変化率θ
２を切り分は値としているが、θ２＋αと設定すること
により、水位補正をより木綿に近い混合布にまで展開す
ることができる。また各々洗たく容量によって０２は異
なるものであるから、各洗たく容量についての切り分は
値０２を設定していく必要がある。さらにここでは水位
のみを補正した例を述へたが、洗たく、すすぎ水流２時
間及び脱水時間等の制御も可能である。In this example, the rate of change in pulse time width θ when using only synthetic fibers
2 is used as the cutoff value, but by setting θ2+α, the water level correction can be applied to mixed fabrics that are more similar to cotton. Further, since the value 02 differs depending on the volume to be washed, it is necessary to set the value 02 for each volume to be washed. Furthermore, although an example in which only the water level is corrected has been described here, it is also possible to control the washing, rinsing water flow for 2 hours, dehydration time, etc.
本発明によれば衣類の量を適正に把握できるので、布量
検出後の洗たく動作を適正に制御することができる。According to the present invention, since the amount of clothes can be properly grasped, the washing operation after detecting the amount of clothes can be appropriately controlled.
第１図は本発明の一実施例の全自動法たく機の縦断面図
、第２図は操作パネルを示す図、第３図は布量センシン
グ回路図、第４図は軽負荷時のＶｉ、Ｖｏの関係図、第
５図はセンシング水位とパルス時間幅の関係を、木綿、
化繊、混合衣類の例で示した図である。
１・・・外枠、２・・・吊り棒、３・・・防振装置、４
・・・外槽、５・・・洗たく兼脱水槽、６・・・撹拌翼
、７・・・駆動装置、８・・モータ、９・・・伝達手段
、１０・・・クラッチ装置、１２・・・排水装置、１５
・・支持板、２６・・水位センサー
′ｌｌｚ口Fig. 1 is a vertical cross-sectional view of a fully automatic combing machine according to an embodiment of the present invention, Fig. 2 is a diagram showing the operation panel, Fig. 3 is a cloth amount sensing circuit diagram, and Fig. 4 is a Vi , Vo. Figure 5 shows the relationship between sensing water level and pulse time width.
It is a figure shown as an example of synthetic fiber and mixed clothing. 1... Outer frame, 2... Hanging rod, 3... Vibration isolator, 4
...Outer tank, 5.Washing and dewatering tank, 6.Agitation blade, 7.Driving device, 8.Motor, 9.Transmission means, 10.Clutch device, 12. ...Drainage system, 15
・・Support plate, 26・・Water level sensor 'llz mouth
Claims (1)
する洗たく機において、第１回目のセンミングで設定し
た水位で更に第２回目のセンシングを行ない、１回目と
２回目のセンシング結果の変化率の大小で、水位を補正
するよう制御したことを特徴とする洗たく機の運転制御
方法。 ２、請求項第１項において、補正水位は、通常設定水位
の範囲内であり、規定変化率以下の場合にのみ、水位を
ワンランク上げるように補正したことを特徴とする洗た
く機の運転制御方法。 ３、請求項第１項において、第１回目のセンシング結果
で高水位を設定した場合は水位を補正を行なわないよう
にしたことを特徴とする洗たく機の運転制御方法。[Claims] 1. In a washing machine that detects the amount of cloth by the magnitude of the load torque during the washing and agitation process, a second sensing is further performed at the water level set in the first sensing, and the first and second sensing are performed. A washing machine operation control method characterized in that the water level is controlled to be corrected based on the magnitude of the rate of change of the sensing result. 2. The washing machine operation control method according to claim 1, wherein the corrected water level is within the range of the normally set water level and is corrected to raise the water level by one rank only when the rate of change is less than a specified rate of change. 3. The washing machine operation control method as set forth in claim 1, wherein the water level is not corrected when a high water level is set based on the first sensing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121340A JPH0417898A (en) | 1990-05-14 | 1990-05-14 | Operation control of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121340A JPH0417898A (en) | 1990-05-14 | 1990-05-14 | Operation control of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417898A true JPH0417898A (en) | 1992-01-22 |
Family
ID=14808843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2121340A Pending JPH0417898A (en) | 1990-05-14 | 1990-05-14 | Operation control of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417898A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61261221A (en) * | 1985-05-16 | 1986-11-19 | Ishizuka Glass Ltd | Production of glass article having mottled pattern |
| JPH0838785A (en) * | 1994-07-07 | 1996-02-13 | Lg Electronics Inc | Apparatus and method for detecting amount of loading of fabric in washing machine |
| US6591439B2 (en) * | 1999-06-22 | 2003-07-15 | Whirlpool Corporation | Control for an automatic washer with spray pretreatment |
| JP2007000740A (en) * | 2005-06-22 | 2007-01-11 | Toto Ltd | Sterilization washing device |
| WO2013031047A1 (en) * | 2011-09-02 | 2013-03-07 | パナソニック株式会社 | Drum-type washing machine |
| GB2553554A (en) * | 2016-09-08 | 2018-03-14 | Intaco Ltd | Water conditioning apparatus |
-
1990
- 1990-05-14 JP JP2121340A patent/JPH0417898A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61261221A (en) * | 1985-05-16 | 1986-11-19 | Ishizuka Glass Ltd | Production of glass article having mottled pattern |
| JPH0417898B2 (en) * | 1985-05-16 | 1992-03-26 | Ishizuka Glass | |
| JPH0838785A (en) * | 1994-07-07 | 1996-02-13 | Lg Electronics Inc | Apparatus and method for detecting amount of loading of fabric in washing machine |
| US6591439B2 (en) * | 1999-06-22 | 2003-07-15 | Whirlpool Corporation | Control for an automatic washer with spray pretreatment |
| JP2007000740A (en) * | 2005-06-22 | 2007-01-11 | Toto Ltd | Sterilization washing device |
| WO2013031047A1 (en) * | 2011-09-02 | 2013-03-07 | パナソニック株式会社 | Drum-type washing machine |
| JP2013052052A (en) * | 2011-09-02 | 2013-03-21 | Panasonic Corp | Drum type washing machine |
| GB2553554A (en) * | 2016-09-08 | 2018-03-14 | Intaco Ltd | Water conditioning apparatus |
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