TW201105833A - Washing machine - Google Patents

Abstract

The topic of the present invention is to provide a laundry machine to discharge cleaning water from the upper portion of the circulating waterway in which the rear blades in the pump proceeds the relifting of water. The structure of circulating waterway won't block the rotation of the textiles, and the discharged water can be scattered to form a water membrane of a large fan shape. The solution is a laundry machine having the rear blades (18) formed on the back side of the stirring wing (9) allocated at the lower portion of the laundry tank (8), and a circulating waterway (19) to proceed the relifting of water by using the pumping function generated by the rear blades. The laundry machine to discharge the cleaning water from the upper portion of the circulating waterway (19) toward the inner side of the said laundry tank (8) has the following feature: the upper portion of the waterway lid (20) of the said circulating waterway (19) has a protrusion part (29) formed to protrude toward the inner side of the tank. A laterally long slit-like discharg opening (26) is formed on the protrusion part (29).

Description

[Technical Field] The present invention relates to the use of a pump which is formed on a back surface of a back surface of a stirring blade disposed in a washing tank to raise the washing water. The rising washing water can be sprinkled from the upper part into the washing machine inside the washing machine. [Prior Art] A washing machine having a structure in which a washing blade (pulsator) provided in a lower portion of the washing tank is rotationally driven to wash the laundry, and the agitating blade The space portion on the back side is provided with a back surface vane that functions as a pumping action integrally with the stirring blade, and a circulating water path extending from the space portion (functioning energy as a pumping chamber) toward the upper side of the washing tank is formed. A washing machine having a structure in which an opening (a discharge port) having a horizontally long slit shape is provided from the upper portion of the circulation water passage toward the inside of the washing tank is known (for example, see Patent Document 1). This is a cycle in which the washing operation by the rotation of the stirring blade is driven, and the pumping of the back blade is simultaneously driven by the rotation, and the water is washed from the spring. The road rises and then circulates from the upper opening portion toward the spout in the washing tank. The discharge water discharged from the upper portion of the circulating water passage in accordance with the circulation of the washing water is sprayed on the washing water surface which is easily floated and exposed on the washing water surface in the tank to improve the washing performance. . . . ......

[Patent Document 1] JP-A-2001-347095

S-5-201105833 [Problems to be Solved by the Invention] In the above-described configuration, it is desirable to form the water discharged from the circulating water passage portion, and to expand into a water film to form a water sprinkling state, and to spray a large amount of the washing water. Further, the washing water can be sprayed in a comprehensive manner without being affected by the position of the washing material. Therefore, for example, as described in the above Patent Document 1, a concave portion is provided on the bottom surface of the balancer on the upper portion of the washing tank (also serving as a dewatering tank), The water is taken up by the rising water in the circulating water path, and then expanded into a fan shape to obtain a water sprinkling state. However, in this case, since the balancer has a unique structure, there is no interchangeability of the balancer of the washing machine which is different from the washing capacity, etc., and it is not efficient, and the assembly work is complicated. In addition, the water passage cover is disposed so as to form a circulation water passage between the inner wall surface of the washing tank, but the discharge port portion formed in the intermediate portion in the height direction of the water passage cover is increased as much as possible. In the case of a horizontal length, it is possible to sprinkle water to a wide range of water film forms on the inside of the washing tank (inside the groove). However, there is a limit to the size of the waterway cover. For example, when the entire waterway cover is largely protruded toward the inside of the groove or the surface area is increased, the rotation of the laundry (generally referred to as "fabric rotation") and the flow resistance of the water flow are caused. The rotation of the laundry is hindered. The obstruction of this rotation action has a great influence on the cleaning effect. Therefore, when the current situation is to be put into practical use, the size, shape, and the like of the above-described discharge port -6 - 201105833 may be limited, and it is not easy to cope with it. The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a fan-shaped water film in which a discharge water is widely spread, and it is possible to reduce the rotation of the laundry and the hindrance of the fabric rotation. A washing machine that improves washing performance. [Means for Solving the Problem] In order to achieve the above object, the washing machine of the present invention includes a bottomed cylindrical washing tank provided in the body, and a lower agitating wing rotatably disposed in the washing tank. a back surface blade formed on a back surface of the stirring blade; a bottom portion formed in the washing tank, a pumping chamber for accommodating the back surface blade; and an upper portion extending from the pumping chamber along the wall of the washing tank, A waterway cover that forms a circulating water path between the inner surfaces of the washing tank wall is formed, and a protruding portion that protrudes toward the inside of the washing tub is formed in an upper portion of the waterway cover, and a protruding port having a horizontally long slit shape is formed in the protruding portion. According to the above-described means, it is possible to provide a washing machine in which a discharge port is provided in the protruding portion, so that a horizontally long slit shape can be formed largely, and a fan-shaped water film that greatly expands in the lateral direction can be obtained. . Therefore, the spit water can be spread widely over the inside of the trough. Further, since the protruding portion is disposed at the upper portion of the water passage cover, it is possible to reduce the occurrence of imperfections in the rotation of the fabric and to improve the washing performance of the washing machine. [Embodiment] (First embodiment) Hereinafter, a first embodiment in which the washing machine of the present invention is applied to a dehydration washing machine will be described with reference to Figs. 1 to 4 . First, Fig. 2 is a side elevational view showing a part of the overall structure of the dehydration washing machine, and the body 1 forming the outer contour of the washing machine is an outer box 2 having a substantially rectangular box shape and a top cover 3 covered thereon. In the top cover 3, the folding cover 5 that can switch the laundry input port 4 is rotatably provided. Inside the body 1, the bottomed cylindrical water tank 6 which is open to the upper side is elastically supported by the elastic support mechanism 7, and in the interior of the water tank 6, the bottomed cylindrical dewatering and washing tank 8 is rotatably Equipped with. In the inner lower portion of the lower portion of the dewatering and washing tank 8, the stirring blade 9 for washing (including cleaning) is rotatably disposed, and a plurality of the peripheral wall portions of the dewatering and washing tank 8 are formed. The through hole for dehydration is 1 〇, and the upper end portion is provided with a balancer 1 1 in which, for example, a liquid (not shown) is enclosed. A drive unit 12 is provided on the outer bottom surface side of the water tank 6, and the drive unit is provided with a motor for washing and dehydrating, a clutch mechanism for switching the power transmission, and the like, whereby the drive unit I2 performs the laundry operation. At this time, only the stirring blade 9 is rotated, and when the dehydrating operation is performed, the dewatering and washing tank 8 is rotated together with the stirring blade 9. Further, a drain port 13 is formed at the bottom of the water tank 6, and the drain port 13 is connected to an electric type. The drain valve I4 is connected to the drain valve 14 and drained to the outside of the machine. A gas curved pipe 16 is connected to the water discharge port 13, and a gas pressure -8 - 201105833 pipe 16 is connected to a pressure type water level sensor (not shown) via an air pipe or the like to detect the water level in the tank. Further, in the upper portion of the water tank 6, there is provided an overflow passage 17 which is formed to communicate with the outside. Further, in the present embodiment, the configuration is such that a circulation water passage 19 extending in the vertical direction is formed along the side wall of the dewatering and washing tank 8. As will be described later in detail, a water passage cover 20 that forms a water path between the inner wall (the inner wall of the tank) of the washing tank 8 is disposed, and the lower end portion of the water passage cover 20 is formed at the bottom of the stirring blade 9 and the dewatering and washing tank 8 The inner and lower parts are connected to each other. In the inner lower portion, specifically, the back side of the agitating blade 9, a back blade 18 that functions as a pumping force is integrally formed, and the back blade 18 is housed in a pump chamber 22 formed in a space portion at the bottom of the groove. This pumping chamber 22 is in communication with the aforementioned circulating water passage 19. In addition, in FIG. 2, the operation panel 23 is provided in the front part (left side of the figure) of the said top cover 3, and the power supply "starting / closing" as various operation keys is arrange|positioned together with the display part not shown. The operation keys used, the operation keys for selecting the "mode" operation, the operation keys for "start/temporary stop", and the like are used to set operation keys such as specific operation conditions. In the inside of the operation panel 23, a control device 24 having a configuration of a so-called PC board unit mainly composed of, for example, a microcomputer is provided as a control means for automatically controlling the steps of the washing operation, the dehydration operation, and the like in accordance with a program or the like stored in advance. Play the function. Next, a specific structure of the above-described circulating water passage 19 will be described with reference to Figs. 1, 3 and 4. 1 is a longitudinal side view showing a part of the dewatering and washing tank 8 in an enlarged manner, and FIG. 3 is a cross-sectional view taken along line A_A of FIG. 1 and showing a cross-sectional view taken along line A-A of FIG. 1, and FIG. Similarly, the cross-sectional view shown is cut along the line B^B in Fig. 1. First, in Fig. 1, the dewatering and washing tank 8 is particularly formed into a strong structure capable of withstanding centrifugal dewatering, and detailed description thereof will be omitted. As will be described briefly, metal sheets, plastics, metal plates, etc., will be described below. In the present embodiment, the material is formed into a circulating water passage along the vertical direction of the inner wall surface (the inner wall surface of the tank) of the dewatering and washing tank 8 in consideration of the suitability of the material, and the strength, the light weight, the assembly workability, and the like. By using the shape of the inner wall surface of the groove, the water passage cover 20 having an arc shape (see Figs. 3 and 4) is formed on the inner side of the groove to form a circulating water passage 19 which serves as a space. The water passage cover 20 has a lower end portion and the pump chamber 22 extending upward along the inner wall of the groove to form a space between the inner wall surface of the dewatering and washing tank 8. In order to use this space as a water passage, in particular, as shown in Fig. 3, a gasket 25 made of an elastic member such as rubber is interposed between the joint portion of the water passage cover 20 and the inner wall surface of the tank to form a water seal structure. Further, the groove wall constituting the circulating water passage 19 is a non-porous wall portion having no small holes 1 ,, whereby the water passing performance of the circulating water passage 19 can be satisfactorily maintained. Further, as shown in Fig. 1, in the water passage cover 20, a plurality of discharge ports 26, 27, 28 are formed in a stepwise manner in the vertical direction (three stages in the illustrated embodiment). In other words, in the present embodiment, the specific configuration of the discharge ports 26 to 28 is the first discharge port 26 located at the uppermost stage, the second discharge port 27 located at the second stage, and the third discharge port 28 located at the lowermost stage. Composition. -10- 201105833 These discharge ports 26 to 28 are each formed into a horizontally long slit shape, wherein the second discharge port 27 is as shown in the cross-sectional view of Fig. 4, and is flat and slightly curved with respect to the water passage cover 20. The circular flat portion 21 is formed and opened toward the inner side (horizontal direction) of the orthogonal groove. Therefore, the opening has a gentle circular arc shape, and the cross-sectional shape of the circulating water passage 19 corresponds to a passage narrow in the depth direction, and this configuration is substantially the same as the third discharge port 28 in the lowermost stage. On the other hand, the first discharge port 26 of the uppermost stage is formed in the horizontally long slit shape similar to the discharge ports 27 and 28, and is opened in the horizontal direction (lateral direction) inside the groove. However, the first discharge port is provided. The shape of the waterway cover 20 of 26 is formed as a protruding portion 29 that protrudes toward the inside of the groove on the rotation center side of the dewatering and washing tank 8, and the first discharge port 26 is formed at the most protruding end portion thereof. That is, the protruding portion 29 of the present embodiment has a cross-sectional shape as shown in Fig. 3, and its longitudinal sectional shape is also as shown in Fig. 1, and all of them are slightly deformed in an arc shape (of course, In the case of a smooth circular arc shape, the protruding portion 29 largely protrudes toward the inner side of the groove, and as a result, a space portion having a larger depth direction from the inner wall surface of the dewatering and washing tank 8 is formed. For example, in FIG. 3, the arc shape in the left-right direction of the outer peripheral portion of the protruding portion 29 is three portions which are roughly divided into a central portion and right and left side portions, and the circular arc shapes are gentle, and the arcs of the left and right side portions are circular. The shape is curved to the same curvature. The central portion of these is divided toward the inner side of the groove in such a manner that the width of the both sides is wide in the left-right direction, and the line intersecting the arc-shaped wire E, the so-called normal line (the solid arrow in the figure) The number is shown to the inside of the slot. C*. -11 - 201105833 Therefore, the opening portion at the center portion of the first discharge port 26 is opened in the horizontal direction, and the details are as described later, and the discharge direction of the circulating water is generally As shown in FIG. 3, the center side of the inside of the groove in the direction of the hollow arrow C direction is opposed to this, and the normal direction (solid arrow) of each opening portion of the left and right side portions of the first discharge port 26 is directed In the circumferential direction (in the groove inner circumferential direction) in the dewatering and washing tank 8, the discharge direction of the circulating water is sprinkled as the main body in the circumferential direction of each of the hollow arrows D1 and D2 as shown in FIG. Of course, the spouting water that is sprinkled in the direction of the arrows C, D1, and D2 is a water film that is continuous in the horizontal direction from the first discharge port 26, that is, in the wide range as shown by the two-point lock line in the figure. Spread greatly into a fan shape and sprinkle inside the groove. Further, as shown in FIG. 4, the second discharge port 27 formed in the flat portion 21 of the water passage cover 20 is formed in a flat portion by an arc shape, and therefore has an arc shape as indicated by a solid arrow in the figure. The wiring is in the normal direction of the straight line, and the direction in which the discharge port 27 is discharged (the direction of the hollow arrows EI to E5) is discharged in the same direction as the normal direction. Further, the means for attaching the dewatering and washing tank 8 of the water passage cover 20 can be variously considered. For example, the water passage cover 20 is made of plastic, and a hook-shaped hook portion (not shown) is integrally provided at a plurality of portions, and After being hooked to the hole portion provided in the groove wall, the hole is fixed to the screw hub portion provided integrally with the water passage cover 20 via the slot wall screw, thereby being mountable and fixed, and the screw fixing portion can be reduced according to the fixing means. -12- 201105833 Next, the action of the dehydration washing machine of the above configuration will be described. In the case of washing a laundry (not shown), for example, a control device 24 that inputs operating conditions such as an operation mode and a condition from the operation panel 23, and a water supply means, a drive unit 12, and the like (not shown) are used. Drive control is performed to automatically perform the washing step, the washing step, and the dehydrating step. Hereinafter, a description will be given of a standard mode operation for executing the amount of laundry in which the washing machine has the highest washable capacity. Further, the steps of washing and dehydrating other than the washing step will be described in detail. In this case, as shown in Fig. 1, the water level of the dewatering and washing tank 8 is also set to the highest water level S, and the water supply is higher than the second discharge port 27, and only the first discharge port 26 is located in the space inside the tank. The drive unit 12 such as a motor is driven to be energized, and the power is transmitted to the stirring blade 9 to rotate, and the washing operation is started. Operating in the standard mode, the flow of water generated by the agitating blades 9 is a flow of water set to a predetermined degree. The washing and washing water are agitated by the rotation of the stirring blade 9, and the monkey is rotated in the vertical direction while rotating in the horizontal direction (reverse operation), and the laundry does not rotate in the groove (fabric rotation) Thereby, it is possible to obtain a desired washing effect without laundry unevenness. At the same time, the pumping action is generated in accordance with the rotation of the back blade 18, and the washing water is sucked into the pumping chamber 22 on the inner side from the periphery of the agitating blade 9, and sent to the circulating water passage 19 which is in communication with the pumping chamber 22. The washing water that has risen in the circulating water passage 19 reaches the protruding portion 29 formed at the upper end portion of the water passage cover 20, and is strongly discharged from the first discharge port 26 that faces the space inside the tank. The water that is spit out is made up of a wide angle that utilizes the traverse portion 29

S -13- 201105833 The wide surface forms a horizontally long and thin slit-like discharge port. As shown by the two-point lock line in Fig. 3, it is a wide-area water film that reaches the circumferential direction of each of the left and right peripheral walls. In the normal direction, when the washing water is discharged from the first discharge port 26, the normal direction is indicated by the solid arrow, and the middle and right circumferential directions are in the middle D1. The direction indicated by D2, in the central portion between them, is directed toward the groove and is discharged in the direction indicated by the hollow arrow C. Of course, the flow of water to the water indicated by the solid arrow is to be discharged into the water film state in the left and right direction, and the whole is a wide range as shown by the two-point lock line in the figure, and is formed into a fan. Water film. In this manner, the washing water in the dewatering and washing tank 8 is sucked into the pumping chamber 22 from the stirring blade 9, and is circulated in the circulating water passage 19 and discharged from the first discharge into the tank, and is repeatedly executed in the washing operation. Further, in the washing step, particularly in the initial stage of the operation, the laundry starts from the surface of the water. This phenomenon is a state in which the washing water is not sufficiently permeated to the washing portion where the air enters the overlapping portion of the laundry such as clothes, and the washing operation is performed, causing the laundry to expand due to the air, and the washing portion is floated and exposed to the surface of the water. The state of the upper. Therefore, when the laundry operation is performed in this state, of course, the laundry in the water is not rotated by the above-mentioned water (the fabric is rotated and does not directly contact the flow of the washing water, and a good fruit cannot be expected. In the inside of the trough, according to the inside of the empty arrow, the normal side is spit out of the wide area and is easily discharged by the exit 26, and the immersion of the polyester is started.) The cleaning effect is not cleaned -14-201105833 Therefore, in this In the embodiment, the back blade 18 also rotates in accordance with the rotation of the stirring blade 9, whereby the water in the pumping chamber 22 is lifted by the pumping action and rises in the circulating water path 19. Then, the rising water is discharged from the first discharge port 26 of the protruding portion 29 formed at the uppermost position of the washing water level toward the inside of the groove, and the water discharged is discharged in the horizontal direction, as shown in FIG. No, it expands into a fan-like water film, and sprinkles it in a wide range of water in the tank. In this case, since the water storage capacity of the protruding portion 29 is large, even if the first discharge port 26 is formed in a large horizontally long shape, the discharge water can be smoothly discharged. Therefore, even when a part of the laundry floats and is exposed on the water surface, the discharge water can be sufficiently sprinkled from the exposed portion (washing material). As a result, it is possible to promote the moisturizing action of the washing water to the laundry in the floating state, and to exert the action of suppressing the laundry to be floated, and to directly discharge the water from the upper side, and to promote the washing action. Further, by receiving the spouting water, the air remaining in the laundry is also easily detached, and the floating portion of the laundry is also easily immersed in the water. Therefore, the stirring operation in the horizontal direction of the laundry in the horizontal direction, the reverse rotation operation in the up-down direction, and the like is performed actively. In this case, the protruding portion 29 is located above the washing water level, and does not interfere with the stirring water flow 'rotation action of the laundry or the like. Of course, 'the laundry that has been subjected to the stirring action at the beginning of the laundry operation is often lifted to the surface of the water, causing a part of it to be exposed.' But even in such a case, it will withstand the discharge from the third

S -15- 201105833 The pressure of the spit water from the mouth 26 can suppress the washings that are intended to float upwards, and can always perform an efficient cleaning function. In addition, the laundry that is in a tendency to float will endure the borrowing. The circulating water flow causes a water flow that sucks water from the periphery of the stirring blade 9 in the tank, and receives the water discharged from the first discharge port 26 in the upper portion of the tank. By the flow of the water, the rinsing, and the like, the laundry can be easily pulled downward, and the like, and the so-called up-and-down operation of the laundry can be promoted to improve the washing performance. When such a washing step for a predetermined period of time is performed, the process proceeds to the washing step, and the amount of detergent is sprinkled in the same operation mode as the above-described washing operation. Of course, by the pumping action by the back blade 18, the laundry which is likely to cause floating is sprinkled with water from above to promote the washing action. Next, when moving to the dehydration step, switching of the power transmission by the driving unit 12 is performed, and the dewatering and washing tank 8 is rotated at a high speed in one direction. The water contained in the laundry is dehydrated by centrifugation, and is discharged from the plurality of through holes 1 to the side of the water tank 6, and discharged to the outside of the machine via the drain hose 1 or the like. After the dehydration step for a predetermined period of time has elapsed, the control unit 24 ends the full operation of the standard mode in which the drive unit 12 is stopped. Further, in Fig. 4, the discharge direction in which water is ejected from the second discharge port 27 formed in the flat portion 21 of the water passage cover 2 is indicated by hollow arrows E1 to E5. In the second discharge port 27 (the third discharge port 28 is also used in the same manner), the case where the water is discharged can be used, for example, when the amount of laundry is small, and the amount of washing water is small. This is briefly explained as follows. -16-201105833 The second discharge port 27 is formed as a flat portion 21 having a small arc-shaped projection amount toward the inside in order to form the flat circulating water passage 19, but the flat water passage structure except the upper end Other than the protruding portion 29 of the portion, the rest reaches the lower portion of the chestnut chamber 22, and the configuration is slightly the same. This is because the position at which the movement of the laundry in the washing operation intersects with the water flow or the like is made to be a flat circulating water passage 19 so as not to be hindered by the so-called woven fabric rotation or the like. Therefore, the discharge state of the water from the second discharge port 27 shown in Fig. 4 is discharged along the arc-shaped curvature in the direction indicated by the solid arrow and the hollow arrows E1 to E5 in the normal direction. . However, since the discharge port 27 is formed in a flat arc-shaped portion, the directions indicated by the hollow arrows E1 to E5 are slightly displaced from each other, and the opening range in the lateral direction is narrowed. Therefore, the center side of the entire inner groove is a linear discharger, and the discharge range (angle) in the left-right direction is not the first discharge port 26 as shown by the two-point lock line in the figure (see Fig. 3) Such a fan shape, and a water film having a narrow width is discharged. In addition, in FIG. 1, the washing water is the discharge water at the highest water level S, and the first discharge port 26 can function effectively, but at this time, from the second and third discharge ports 27 and 28 located in the water, The discharge of water toward the inside of the tank is generated, and the circulation of the washing water is promoted, which is also extremely effective for the washing action. In addition, the first and second discharge ports 26 and 27 face the space in the groove, and the discharge water can function effectively (the water level at this time is located at the upper position of the third discharge port 28), and is derived from the projection 29 ( The discharge water of the first discharge port 26) expands into a fan shape and reaches the far side, and is derived from the flat portion 21 (the

S -17- 201105833 2 The discharge water of the discharge port 27) is a water film that is narrower than the width of the first discharge port 26 and falls to the side of the groove wall, so that the water discharge effect of the discharge water with less uneven discharge can be expected to the inside of the groove. . According to the first embodiment described above, the following effects can be obtained. The pumping action of the back blade 18 of the stirring blade 9 forms a circulating water passage 19 for circulating the washing water, and is discharged from the upper portion of the circulating water passage 19 toward the inside of the dewatering and washing tank 8. Since the first discharge port 26 is provided in the protruding portion 29 formed on the upper portion of the water passage cover 20 in which the circulating water passage 19 is formed, as shown in FIG. 3, the wide surface of the wide angle range of the protruding portion 29 is greatly used. The first discharge port 26 having a horizontally long slit shape is formed in the ground, and as a result, the fan-shaped water film which has been greatly expanded can be discharged to a wide extent on the inner side of the waste. Therefore, the laundry floating in the washing operation can be effectively sprinkled without being affected by the position thereof, and particularly in the initial stage of the washing operation, it is easy to form the laundry which is gathered with air and float to the water surface and exposed. In the state, the water (spraying) of the exposed portion (washing material) can promote the wetting of the water, and it is expected to exert the effect of pressing it back into the water. Moreover, the laundry is effectively stirred in the washing water and also promotes the up-and-down reversal of the laundry by the circulating water flow, so that the so-called fabric rotation can be made good, and the water is also added. The flushing effect can effectively improve the washing performance. Further, since the projecting portion 29 of the upper portion of the circulating water passage 19 is generally located above the washing water level, it is possible to prevent the movement of the laundry, the resistance to the water flow, and the like, and the fabric rotation becomes good. On the other hand, in addition to the protruding portion 29, the flat portion 21' of the majority of the circulating water passages 19 in the washing water is -18-201105833. As shown in the cross-sectional view of Fig. 4, the amount of protrusion toward the inner side of the waterway cover 20 is shown. (The arc-shaped portion) is small and has a flat structure. In particular, it is possible to reduce the movement of the laundry in the same direction of the dewatering and washing tank 8 and the hindrance of the water flow. This also effectively improves the washing performance. Further, since the "circulating water passage 19" can be constituted by the water passage cover 20 without being shared with other structural components such as the balancer 11, there is no problem such as compatibility with other different types of machines. (Second Embodiment) FIG. 5 to FIG. 8 are the same as the first embodiment of the present invention, and the same portions as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted, and only the different portions will be described below. Detailed description. In the drawings, Fig. 5 is a longitudinal side view showing a part of the circulation water passage 3 of the present embodiment in an enlarged manner, and Figs. 6(a) to (d) are examples showing that the strength of the cleaning action is "strong" or "weak". FIG. 7 is a plan view showing a dehydration and washing tank in a falling area of the discharge water in response to "strong" or "weak" operation, and FIG. 8 is a view showing " A diagram of the discharge state of the spit out water of the "weak" and "weak" operations. In the second embodiment, the configuration of the first embodiment is substantially the same as the configuration of the circulating water passage 30. The following is a description of the characteristics of the circulating water passage 30 with reference to Fig. 5 . The circulating water passage 30 is also disposed above the highest water level S of the washing water, and covers the -19-201105833 waterway cover 31 having the protruding portion 3 2 protruding toward the inner side of the groove to be in the groove. A circulating water passage 30 having a space portion is formed between the wall surfaces, and the shape thereof is substantially the same as that of the first embodiment. However, specifically, it has the following differences. First, the water passage cover 31 is provided with the first discharge port 33 so as to be located at the uppermost portion thereof, and has the second and third discharge ports similar to those of the first embodiment at a position lower than the first discharge port 33. 27, 28. Here, the protruding portion 32 provided with the first discharge port 33 is as shown in FIG. 5, and the arcuate portion of the center portion protruding toward the inside of the groove is most protruded, and the upper and lower portions thereof are gently formed. Show the arc-shaped part of the right side retreating. Therefore, the upper side of the protruding portion 32 has an inclined surface having an oblique angle 0 which is inclined toward the rear with respect to the so-called vertical line, and the first discharge port 33 is formed in the inclined surface portion 32a. In this manner, the discharge port 3 3 that is opened so as to be orthogonal to the inclined surface portion 32a is formed to be inclined upward, and is formed at an upward position of the elevation angle 0 to the horizontal line shown in FIG. 5, and the elevation angle Θ is the inclination angle. /3 is the same (Θ = β ), depending on the tilt angle; S. Further, a rib portion 34 that protrudes in an eaves shape continuous with the discharge port 33 is provided only on the upper edge portion side of the discharge port 33 that is opened obliquely upward in the discharge port 33. The rib portion 34 is formed obliquely upward in the opening direction of the discharge port 33, and protrudes toward the inside of the groove to be integrally formed. Further, the hollow arrow F in the figure shows the discharge direction of the discharged water, and is slightly discharged upward. Next, with reference to Fig. 6, the "strong" and "weak" operation of the washing operation is shown, and the intensity of the washing water supplied by the laundry is shown as "strong" and "weak". The number of rotation control -20- 201105833 system mode. The ON/OFF control of the drive unit 12 (especially the motor), the rotation speed control, and the like are performed by the control device 24 (hereinafter, the rotation control of the agitation blade 9 will be described). This is a direct influence on the strength of the pumping action of the back blade 18 of the stirring blade 9. As a result, as will be described later, the jetting distance of the discharged water from each of the discharge ports 33, 27, and 28 is greatly increased. Variety. By the way, the agitating blades 9 are all driven to rotate in the normal and reverse directions. First, FIG. 6(a) shows that the agitating blades 9 are controlled to be in common ON and OFF times for a short period of time to generate a "weak" washing water flow. In the time mode, the "weak" operation during the washing operation is displayed. On the other hand, Fig. 6 (b) shows that the maximum rotation speed of the stirring blade 9 is the same as that of Fig. 6 (a), but the ON time becomes longer and the OFF time Shorter mode. In particular, when the ON time of the rotation in one direction is long, the flow of the washing water is increased rapidly, and the mechanical action of the agitating blade 9 to the laundry is also increased. In this case, the "strong" operation can be performed. Figure 6 (c) shows that the ON and OFF times are common to Figure 6 (a), but the maximum rotational speed (RPM) is controlled at a low speed. Therefore, the "weak" operation of the weaker "weak" washing water flow is shown compared to Fig. 6(a). Figure 6 (d) shows the mode when the strongest "strong" wash water flow is obtained. For example, the ON and OFF times are the same as those in Figures 6(a) and (c), but the maximum rotational speed (RPM) is the highest. In this case, it is also possible to determine how to set the ON and OFF times to display the same cleaning power as in Fig. 6(b). However, depending on the rotation speed - 21 - 201105833, the strongest "strong" can be performed. Running. Further, Figs. 7 and 8 are for explaining the discharge state of the discharge water corresponding to the above-mentioned "strong" or "weak" water flow, and the detailed description will be made in the following description. Next, the discharge function of the washing water in the circulating water passage 30 according to the above configuration will be described. First, a case where the standard operation mode is set in the same manner as in the first embodiment will be described with reference to Fig. 5 . Therefore, the washing water level is at the highest water level s higher than the second discharge port 27, and only the first discharge port 33 faces the space inside the groove, and the washing water flow generated by the stirring blade 9 is set to a predetermined "strong". Water flow. Here, in the present embodiment, the protruding portion 32 provided with the first discharge port 33 has an inclined surface portion 32a that is inclined at a slight inclination angle toward the rear, and the first discharge port 3 is formed by the inclined surface portion 3 2 a. 3, the discharge water system is discharged in the direction of the hollow arrow F in substantially the same manner as the normal direction. In the present embodiment, the rib portion 34 is protruded from the upper side of the opening edge of the first discharge port 33. «In the absence of this rib 34, there is a tendency for the water spouted from the spout 3 3 to fall immediately by gravity. On the other hand, when the rib portion 34 is provided, when the water is discharged, the surface tension is increased from the upper edge of the opening to the rib portion 34, and the surface tension is continued to contact the lower surface side of the rib portion 34. As a result, the water can be sprayed far. In addition, since the rib portion 34 has a shape in which the first discharge port 33 having a horizontally long slit shape protrudes from the upper side so as to cover the opening thereof, foreign matter (for example, a coin or the like) from the upper side can be prevented. The fall of the other causes the -22-201105833 to invade the spit out of the 3 3 situation. Further, the discharge angle of the water is determined by the inclination of the inclined surface portion 3 2 a to determine the elevation angle 0 of the discharge direction, and the water is discharged obliquely upward. Since the water is discharged so as to draw a parabola (see Fig. 8), the form of the discharge in the flat direction can reach a farther portion. For example, the pumping action of the back blade 18 can be increased, or the washing tank 8 can be large in capacity. In the same manner as in the first embodiment, the water is discharged into the tank in the same manner as in the first embodiment, and the net performance is improved by being sprinkled from the upper and upper sides of the laundry which is easy to float. Furthermore, the elevation angle of the spout angle is 0, theoretically, the angle of 45 degrees is far. However, due to the rotation of the stirring blade 9 in the standard operation mode, there is a spout that the water flies too far to reach the outside of the slot, so the elevation angle is 0. Set below 30 degrees. On the other hand, the second and third discharge systems provided in the flat portion 21 are suppressed in a slit-like opening having a narrow width, and are formed to be linearly discharged toward the inside of the groove in a manner of being flattened, so that the water is sprinkled. As described above, in the above-described standard mode operation, the washing operation is generally performed with a constant intensity flow. Of course, the stirring blade 9 (the back blade is made to have a constant rotation speed, etc., and the flying distance from the first discharge port 3 3 is also slightly constant. Therefore, the sprinkling water is expanded into a fan shape to perform water sprinkling to sprinkle water on the laundry. The oblique angle is such that the discharge is more dehydrating than the water. Of course, the film is sprinkled with water to help wash the spray. In the case of the turning speed, for example, the washing water 18 which is also reduced in the width of the mouth 27 and the horizontal portion 2 is also controlled, and the water can be discharged, and it is possible to have -23-201105833. However, in this case, the first discharge port 33 is used. The discharge water can be efficiently injected into the remote area on the opposite side, but it is not easy to inject the discharge water to the front area. Of course, if the spit water can be sprinkled in the tank, the washing performance can be expected to be further improved. Therefore, in the present embodiment, the spray distance of the discharge water can be varied in accordance with the rotation control of the stirring blade 9. Hereinafter, a rotation control mode for obtaining the stirring blade 9 for "strong" or "weak" the flow intensity of the washing water will be described with reference to Fig. 6 . In Fig. 6, for example, in the control mode shown in Fig. 6(d) where the flow of the washing water is the strongest, since the rotation speed (RPM) is the highest and the pumping action of the back blade 18 is the strongest, the water can be strongly strong in the circulation water path 30. The ground rises and is discharged from the first discharge port 33 formed in the protruding portion 32 to the farthest side. In Fig. 7, the area G of the discharge water which is drawn in the fan shape by the oblique line of the cross is displayed, and the discharge water (watering) range of the discharge water is displayed, and is discharged from the circulation water path 30 to the farthest side. On the other hand, in the rotation control mode shown in FIG. 6(c) which shows the weakest washing water flow, for example, the pumping action of the back blade 18 is also weak, and the discharge water from the first discharge port 33 falls to the front. Corresponding to the range corresponding to the slightly smaller fan-shaped region 以 shown by oblique lines in FIG. When the falling areas G and Η of the discharge water are combined, most of the inner area of the dewatering and washing tank 8 is occupied, and the washing water can be more effectively sprinkled with the washing material. Therefore, if the rotation control mode of the "strong" water flow as shown in Fig. 6 (d) and the rotation control mode of the "weak" water flow as shown in Fig. 6 (c) are interactively executed, -24-201105833 can finally sprinkle the spit water. By the full range of the inside of the groove, it is possible to expect a cleaning effect without unevenness. Further, the mode of "strong" or "weak" operation by the stirring blade 9 is not limited to being performed in the washing step, and may be set, for example, to concentrate on the initial stage of the washing operation in which the laundry is easily floated. The process, including the washing step, and the like, can be carried out with various modifications. Further, in general, such a washing machine has such a "strong" and "weak" operating function as described above. Therefore, it is not necessary to add a new configuration, and it is easy to obtain a basis only by setting a program in the control device 24 in advance. The control mode of "strong" and "weak" operation achieved by the rotation control of the stirring blade 9. Further, as shown in Fig. 6, the rotation control of the stirring blade 9 can be performed by changing the maximum rotation speed (RPM) or by changing the ratio of the ON and OFF periods, that is, "strong" or "weak" operation. The mode can also be implemented with various changes. Next, description will be made based on FIG. Fig. 8 is a view showing the discharge state of the washing water in the "strong" and "weak" modes of the washing water flow, and shows that the amount of the washing material and the water level are effective from the discharge ports 33 and 27, The discharge water of 2 8 shows that the "strong" water flow operation and the broken line indicate the "weak" water flow operation. In the example of the figure, the state in which the discharge water of the strength of the "weak" water flow is increased or decreased (spray distance) is discharged to the center side of the inside of the groove. Further, since the second and third discharge ports 27 and 28 are formed in the horizontal direction (lateral direction) of the inside of the groove, the spray distance is as shown in the figure.

S -25-201105833 The first discharge port 33 of the opening is greatly different, and since the second and third discharge ports 27 and 28 are formed in the flat portion 21 having a narrow width, the water is not formed as shown in FIG. The discharge water width of the membrane is linear and fan-shaped. Further, another use example will be described with reference to this FIG. For example, when the water level is set to the upper position of the third discharge port 28, the discharge water from both the first and second discharge ports 33 and 27 can be effectively utilized. In other words, in this case, as shown in the figure, it is possible to simultaneously use two kinds of discharge waters which are different from the spray distance and the water film, and to further achieve the water sprinkling effect on the laundry. The other is not limited to this, and the desired spray distance can be obtained by appropriately adjusting the capacity (diameter) of the dewatering and washing tank 8. According to the second embodiment described above, the following effects can be obtained. In particular, as shown in FIG. 5, the first discharge port 33 of the protruding portion 32 is formed in a portion having an inclined surface that faces obliquely upward toward the groove inner side of the protruding portion 32, so that the discharge port is similarly opened in the upward direction. form. Therefore, the discharge water discharged from the upward discharge port 3 3 can be sprayed to the far side by drawing a parabola, and it is easy to obtain the same effect as the pump performance of the lift back blade 18. This is very effective for increasing the fan-shaped water film toward the laundry, and, by this, has an advantage that the design of the back blade 18 can be made easy. Further, since the eaves-shaped ribs 34 are protruded from the upper edge side of the opening of the first discharge port 33, the surface tension generated on the lower surface side of the ribs 34 can be used to promote the discharge to the far side and become a rib. The portion 34 covers the opening of the discharge port -26-201105833 3 3, whereby it is possible to effectively prevent foreign matter such as coins dropped from above from entering the discharge port 33. Further, in Fig. 6, it is explained that the "strong" or "weak" operation depending on the various strengths of the washing water flow can be selectively switched in accordance with the rotation control of the stirring blade 9, which means that the back blade 18 can be simultaneously switched. The strength of the pump works. Therefore, the spray distance of the discharge water from the first discharge port 33 can be changed by the rotation control of the agitation blade 9, and as shown in Fig. 7, the drop region G or the sputum of the discharge water can be alternately obtained, and as a result, Can improve the cleaning performance without unevenness. Further, the rotation control of the stirring blade 9 can be easily performed in a program, and can be performed, for example, in the initial stage of the washing step, thereby promoting the effect of moisturizing the laundry which is easily floated by air and returning to the water. The control of the expected cleaning effect of the original cleaning action is also easily performed, and the protrusion 32 formed on the upper portion of the waterway cover 31 forming the circulation water path 30 is disposed at a higher water level than the washing step of the standard operation mode. At the position, the portion from the protruding portion 32 to the lower pumping chamber 22 is configured as a flat portion 21 having only a slight arc shape, and the second and third discharge ports 27 and 28 are provided in the flat portion 21. . Thereby, the protruding portion 32 does not hinder the flow of the washing water or the rotation of the fabric, and the desired washing performance can be ensured. Further, since the plurality of discharge ports are provided in the protruding portion 32 and the flat portion 21, the washing effect by the discharge water can be improved for the plurality of washing water levels corresponding to the amount of laundry.

Further, in the present embodiment, the first discharge port 33 provided in the protruding portion 32 is opened upward, whereas the second and third discharge ports 27 and 28 provided in the flat portion 21 are oriented toward each other. Since it is opened in the horizontal direction, the case where these discharge ports 33, 27, and 28 which are opened in different directions are combined and discharged can be discharged in the entire range of the groove, and the cleaning action without unevenness can be achieved. In this case, the second and third discharge ports 27 and 28 may be formed as upward openings having different angles, or all of the discharge ports may be opened in different directions. Furthermore, the invention is not limited to the embodiments described above and shown in the drawings. For example, the protruding portion formed in the upper portion of the circulating water passage has a slightly rounded cross section. Although the portion where the discharge port is formed is desirably an arc shape in order to obtain a fan-shaped water film, it may be changed into various shapes. In addition, the washing machine may have at least a pumping action provided with a back blade of the agitation blade, and may be applied to, for example, a structure having a washing function as a non-porous washing tank unit, and the like, which does not exceed the execution. Various changes and modifications can be made without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an enlarged side elevational view showing a first embodiment of the present invention applied to a main part of a dehydration and washing tank for a dehydration washing machine. Fig. 2 is a side elevational view, partly in section, showing the entire structure of the dehydration washing machine. Fig. 3 is a cross-sectional view taken along line A - A of Fig. 1; Fig. 4 is a cross-sectional view taken along line B - B of Fig. 1. Fig. 5 is a longitudinal sectional view showing a portion of the circulation water passage of the second embodiment of the present invention in an enlarged manner. Fig. 6 is a view showing, by way of example, a rotation control mode of a plurality (a., b, c, d) by a stirring blade which is "strong" or "weak" in the cleaning intensity. Fig. 7 is a plan view showing a dehydration and washing tank in a drop region of the discharge water in response to "strong" or "weak" operation. Fig. 8 is a view showing a discharge state of the discharge water in response to "strong" or "weak" operation. [Description of main components] 1 : Main body 6 : Sink 8 : Dewatering and washing tank (laundry tank) 9 : Stirring wing 1 8 : Back blade 1 9,3 0 : Circulating water channel 20, 3 1 : Waterway cover 21 : Flat part 22: pumping chambers 26, 33: first discharge port (discharge port) 27, 28: second, third discharge port (discharge port) 2 9, 3 2: protruding portion 3 2 a : inclined face portion 34: rib portion

S -29-

Claims (1)

201105833 VII. Patent application scope: 1. A washing machine characterized by: having: a bottomed cylindrical washing tank disposed in the body: a stirring wing rotatably disposed in a lower portion of the washing tank; forming a back side blade of the back side of the stirring wing; a bottom portion formed in the washing tank, a pumping chamber for accommodating the back side blade; and an upper portion extending from the pumping chamber along the wall of the washing tank, in front of the laundry A waterway cover that forms a circulating water path between the inner surfaces of the groove wall is formed, and a protruding portion that protrudes toward the inner side of the washing tub is formed in an upper portion of the waterway cover, and a protruding port having a horizontally long slit shape is formed in the protruding portion. 2. The washing machine according to claim 1, wherein the portion of the protruding portion where the discharge port is provided is an inclined surface that faces obliquely upward toward the inner side of the washing tub, and the discharge port of the protruding portion faces upward Direction opening. 3. The washing machine according to claim 1 or 2, wherein an eave-shaped rib is protruded from an upper edge side of the opening of the discharge port. 4. The washing machine according to claim 1 or 2, wherein, according to the rotation control of the agitation blade, switching the strength of the pumping action by the back blade to switch the discharge water from the discharge port The spray distance changes. 5. The washing machine of claim 1 or 2, wherein the protrusion is formed at a position higher than a maximum water level of the washing step -30-201105833. 6. The washing machine according to claim 1 or 2, wherein the waterway cover is provided with a discharge port 7 in addition to the flat portion of the upper portion which protrudes from the lower portion of the protruding portion. The washing machine, wherein the opening of the flat portion is provided in the opening of the discharge portion of the protruding portion, the outlet portion of the flat portion is opened in different directions, and the outer portion is in the outer portion, and is disposed in the aforementioned flat-31.