中英文翻譯PULSATOR FOR A WASHING MACHINEABSTRACTDisclosed is a pulsator for a washing machine capable of preventing generation of a concentric water flow such as a heart-type water flow. The pulsaltor includes a base plate fixed to the shaft housing, a plurality of plate-shaped wings radially fixed to the upper surface of the base plate and for forming a concentric water flow in the washing water. A plurality of cover plates fixed on the multi-stepped edges of the plurality of plate-shaped wings, a plurality of protrusions radially and in a certain length formed on the upper surface of each of the plurality of cover plates and for generating a water flow of the washing water vertically oriented toward the top of the washing tub by being rotated according to the rotation of the base plat.In general a washing machine for home use is a device which can easily remove dirt and other foreign materials contained in washing articles, using washing water, detergents and so on.Such a washing machine for home use can be classified as a water whirlpool-style washing machine, a water stirring- style washing machine, or a drum-style washing machine by washing methods.In this case, the water whirlpool-style washing machine is a washing machine which washes washing articles by friction among the washing articles. That is, if a pulsator mounted on the bottom of the washing tub is rotated. A heart-shaped water flow is generated to cause contact of the washing articles with each other, so that the washing articles are washed.The water stirring-style washing machine is a washing machine which washes washing articles due to the striking of the washing articles against the washing agitator and the wall of the washing tub. That is, if the washing agitator mounted on the center of the washing tub is regularly rotated the stirring prominence formed on the outer surface of the washing agitator generates a waterflow so that the washing articles strike against the water agitator and the wall of the washing tub. The washing articles are washed by the striking of the washing articles against the water agitator and the wall of the washing tub.On the other hand, the drum-style washing machine is a washing machine which washes washing articles by moving the washing articles up and down in a circular motion. The drum-style washing machine has a cylinder-type drum mounted in parallel with the washing tub. The cylinder-type drum includes a plurality of holes and a plurality of prominences. When the cylinder-type drum is rotated, the plurality of prominences move the washing articles up and the moved-up washing articles drop down due to the gravity of the earth. In the way mentioned above the dirt within the washing articles is washed clear. Of the washing machines mentioned above, the water whirlpool-style washing machine is generally used for home use.The water whirlpool-style washing machine is explained below in detail referring to FIG. 1 and FIG. 2.FIG. 1 is a schematic view of a conventional washing machine and FIG. 2 is a schematic view of the pulsator of FIG. 1. As shown in FIG. 1, a motor 4, which generates a rotating force with an input of external electric power, is mounted on the outer bottom of the reservoir 1. A shaft housing 5 for transmitting the rotating force of motor 4 is connected to the motor 4 through pulleys 21 and a pulley belt 22. A rotating force of shaft housing 5 is transmitted to a pulsator 3 through a shaft 7 0f shaft housing 5. Shaft 7 is protruded inside a washing tub 2 through the bottom of reservoir 1. On the upper portion of shaft 6 pulsator 3 is fixed. As shown in FIG. 2, pulsator 3 has a circular-shaped plate 8, and a plurality of wing prominences 6 radially formed on the upper surface of circular-shaped plate 8. In such a conventional washing machine, motor 4 is rotated with an input of electric power. The rotation of motor 4 is transmitted to shaft housing 5 to thereby rotate shaft7. When shaft 7 is rotated circular-shaped plate 8 0f pulsator 3 is rotated accordingly. The plurality of wing prominences formed on circular-shaped plate 8 is rotated. The rotation of the plurality of wing prominences 6 rotates the washing water and the washing articles. That is, the rotation of pulsator 3 generates a centrifugal force of the washing water. And the centrifugal force moves the outer periphery portion of the washing water upwards while moving the inner portion of the washing water downwards therefore. A heart-type water flow is formed in the washing water. Such a heart-type waterflow which is a concentric waterflow causes the washing articles to be gathered in the center thereof and to make contact with each other so as to remove the dirt of the washing articles.In the washing of washing articles by the heart-type waterflow, the washing articles in the center portion of the heart-type waterftow become tangled with each other to thereby deteriorate the effectiveness of the washing. Since the washing articles move in accordance with the heart-type waterflow, the washing articles in the center portion of the heart-type waterflow are not sufficiently washedSUMMARY OF THE INVENTIONAccordingly, it is an object of the present invention to provide a pulsator for a washing machine capable of preventing generation of a concentric waterflow such as a heart-type waterflow.In order to achieve the object, a pulsator for a washing machine according to an embodiment of the present invention comprises a base plate, a plurality of plate-shaped wings, a plurality of cover plates and a plurality of protrusion. The base plate is fixed to a shaft housing to be rotated according to a rotation of the shaft housing. The plurality of plate-shaped wings is radially and vertically fixed to the upper surface of the base plate so as to be rotated according to the rotation of the plurality of plate-shaped wings. The rotation of the plurality of plate-shaped wings forms a concentric waterflowing washing water. Each of the plurality0f plate-shaped wings has a multi-stepped edge. The plurality of cover plates is fixed on the multi-stepped edges of the plurality of plate- shaped wing s. Each of the plurality of cover plates is a disc-shaped plate having a hole in the center portion. The plurality of protrusions is radially and in a certain length formed on the upper surface of each of the plurality of cover plates the plurality of protrusions is rotated according to the rotation of the base plate to generate a waterflow of the washing water vertically oriented toward the top of the washing tub. Therefore, using the pulsator for a washing machine according to the present invention can generate an effect that prevent the tangling of washing articles by generating a vertically oriented waterflow to inhibit the generation of a concentric waterflow in the washing water. As well as generates another effect that performs washing of the washing articles sufficiently by floating the washing articles fully in the washing tub.洗衣機用波輪摘要公開一種用于能夠防止產(chǎn)生同心水流的洗衣機波輪，如向心水流。該波輪包括一個固定在軸套上的基板，多個被徑向固定在基板的上表面上的板狀葉片，用于在洗滌水中形成同心水流。多個板形葉片被固定在的多級邊緣的蓋板上，以及多個徑向突起物按一定長度形成于每塊蓋板的上表面上，根據(jù)基板的旋轉(zhuǎn)，使洗滌水產(chǎn)生朝洗衣筒頂部垂直運動的水流。一般適用于家用的洗衣機是一種利用洗滌水、洗滌劑等能很容易地除去含在洗滌物中污垢和其它雜質(zhì)的裝置。這樣的家用洗衣機按洗滌方法可分為水渦流式洗衣機、水攪拌式洗衣機、或滾筒式洗衣機。在這種情況下，水渦流式洗衣機是一種靠洗滌物間摩擦清洗洗滌物的洗衣機。就是說，如果安裝在洗衣筒底部上的攪拌器旋轉(zhuǎn)時，產(chǎn)生心形水流，使洗滌物相互接觸，從而對洗滌物品進行洗滌。水攪拌式洗衣機是一種靠洗滌物在洗滌攪拌器和洗衣筒壁上的撞擊來清洗洗滌物品的洗衣機。就是說，當安裝在洗衣筒中央的洗滌攪拌器有規(guī)律地轉(zhuǎn)動時，洗滌攪拌器外表面的攪拌凸出物產(chǎn)生水流，從而使洗滌物撞擊在水攪拌器和洗衣筒的壁上。通過洗滌物撞擊在水攪拌器和洗衣筒壁上來對被洗滌物品進行清洗。另一方面，滾筒式洗衣機則是一種靠洗滌物向上和向下作圓周運動來洗滌被洗滌物品的洗衣機。滾筒式洗衣機具有與洗滌筒平行安裝的圓柱滾筒。圓柱形筒包括多個孔和多個凸起。當圓柱筒轉(zhuǎn)動時，多個凸起使洗滌物向上運動，再靠地球引力作用使向上運動的洗滌物下落。采用上述方法，洗滌物中的污漬被洗滌干凈。上述提到的洗衣機中，水渦流式洗衣機一般作家庭使用。參見圖 1 和圖 2，詳細說明水渦流式洗衣機。圖 1 是一個傳統(tǒng)洗衣機的示意圖，圖 2 為圖 1 洗衣機的波輪的示意圖。如圖 1 所示，電機 4 被安裝在蓄水池 1 外底部，電機 4 靠外部輸入的電力產(chǎn)生轉(zhuǎn)動力，通過滑輪 21 和皮帶 22 將用于傳遞電機 4 的轉(zhuǎn)動力的軸套 5 與電機 4 連接，通過軸套 5 的軸 7 將軸套 5 的轉(zhuǎn)動力傳遞到波輪 3 上，軸 7 穿過蓄水池 1的底部伸入洗衣筒 2 內(nèi)，在軸 6 的上部將脈動器 3 固定住。如圖 2 所示，脈動器 3 具有圓形板 8 以及多個沿徑向形成于圓形板 8 之上表面上的葉片凸出物 60用這種常規(guī)洗衣機，電機 4 隨著輸入的電力而轉(zhuǎn)動，電機 4 的轉(zhuǎn)動被傳遞到軸套 5 上，以使軸 7 轉(zhuǎn)動。當軸 7 轉(zhuǎn)動時，脈動器 3 的圓形板 8 轉(zhuǎn)動，所以，形成于圓形板 8 上的多個葉片凸起也發(fā)生轉(zhuǎn)動，多個葉片凸起 6 的轉(zhuǎn)動帶動洗滌水和洗滌物轉(zhuǎn)動，就是說，波輪 3 的轉(zhuǎn)動產(chǎn)生洗滌水的離心力，該離心力使洗滌水的外環(huán)部分向上運動，同時，使洗滌水的中心部分向下運動，這樣，在洗滌水中形成向心形水流，這種心形水流是一種同心水流，使洗滌物聚集在中央，并且使其彼此接觸，從而除去洗滌物中的污漬。在用心形水流洗滌衣物時，位于心形水流中央部分的洗滌物彼此會纏結(jié)在一起，從而影響洗滌效果，由于洗滌物隨著心形水流運動，位于心形水流中央部分的洗滌物不能被充分地洗滌。因此，本發(fā)明的目的在于提供一種能夠防止產(chǎn)生同心水流如心形水流的洗衣機用波輪。為了達到上述目的，本發(fā)明的洗衣機的波輪含有一塊基板、多個板狀葉片、多塊蓋板以及多個突起物。基板被固定到軸套上，并隨著軸套的轉(zhuǎn)動而轉(zhuǎn)動，多個板形葉片沿徑向垂直固定到基板的上表面上，以便隨著多個板形葉片的轉(zhuǎn)動而使基板轉(zhuǎn)動。多個板狀葉片的轉(zhuǎn)動形成洗滌水同心水流，每個板狀葉片帶有多級邊緣，多塊蓋板被固定在多個板狀葉片的多級邊緣上。每塊蓋在中央部分有孔的盤形板，多個突起物沿徑向并按一定長度形成在每塊蓋板的上表面上，多個突起物隨著基板的轉(zhuǎn)動而轉(zhuǎn)動，以產(chǎn)生朝著洗衣筒頂部垂直運動的洗滌水水流。因此，采用本發(fā)明洗衣機的波輪，由于產(chǎn)生垂直運動水流，避免在洗滌水中產(chǎn)生同心水流，從而能產(chǎn)生防止洗滌物纏結(jié)的效果。并且，由于洗滌物在洗衣筒中完全漂浮，能產(chǎn)生使洗滌物進行充分洗滌的另一種效果。圖 1圖 2圖 2