TWI417436B - Drum type washing machine - Google Patents

Description

Drum washing machine Field of invention

The present invention relates to a drum type washing machine.

Background of the invention

The previous drum type washing machine construction is as follows. That is, the rotary drum is formed in a bottomed cylindrical shape, and the rotary shaft is inclined from the front side to the bottom inner side of the opening toward the horizontal or horizontal downward direction, and is disposed in the water tank. Then, the rotating drum is rotationally driven to clean the clothes contained in the rotating drum. Further, a drum type washing machine having a circulation function is known, and the washing water in the water tank is circulated by a circulation pump (for example, refer to Japanese Laid-Open Patent Publication No. Hei 10-127978 and JP-A-2008-073128).

The drum type washing machine of the Japanese Laid-Open Patent Publication No. Hei 10-127978 is an injection port formed by gradually changing the nozzle angle from the front side of the rotary drum toward the center of the rotary drum, and the injection in the rotary drum by the circulation means is performed. As a result, it is possible to effectively wash a high-capacity treated object.

In the drum type washing machine of Japanese Laid-Open Patent Publication No. 2008-073128, the pump casing of the circulation pump has two water outlets that can switch the water out of the pump blade. In this way, the positive and negative rotation of the rotating drum can be used to change the direction of the washing water supply during washing and cleaning.

Summary of invention

However, the water circulation technique disclosed in Japanese Laid-Open Patent Publication No. Hei No. 10-127978 discloses a rod-shaped shower jet by a plurality of injection ports formed by gradually changing the nozzle angle, so that each shower is a partial operation. Although it is desired to cover a partial vacancy of the rod-shaped shower with a plurality of injection ports having different angles, the drum type washing machine for water saving purposes must perform water circulation with a small amount of water, and the coverage by the number of ejection ports has its limit.

The water circulation technology disclosed in Japanese Laid-Open Patent Publication No. 2008-073128 has two water outlets that switch water out in accordance with the forward and reverse rotation of the pump blades. In this way, the positive and negative reversal of the rotating drum can be used to change the direction of the washing water supply during washing and cleaning. The laundry that falls when the rotating drum is reversing will receive a shower to increase the weight of the laundry, and the washing power is increased by tapping cleaning. However, for a laundry having an excessively high capacity, the flapping state cannot be achieved, and the flapping cleaning effect cannot be obtained.

The main object of the present invention is to provide a circulatory pump for circulating the washing water in the water tank, which can improve the water discharge efficiency of the washing water from the circulation pump through the water outlet side path to the washing material in the rotating drum, and improve the penetration of the washing water into the washing material. Sliding washing machine with higher washing power.

Therefore, the drum type washing machine of the present invention includes: a rotary drum having a bottomed cylindrical shape; and a water tank provided such that the rotary drum is oriented from the front side toward the inner side surface of the bottom, and the rotation axis direction is horizontal or horizontal. Tilting downward; the motor controls the rotation of the rotating drum; and the water circulation system causes the washing water in the water tank to circulate in the rotating drum through a circulation path connected to the water tank; and drives the motor and the circulating pump to perform At least one of a washing step and a washing step, wherein the water circulation system is provided with: a water inlet, which is disposed on the outer peripheral wall of the water tank, and connects the water outlet side path from the circulation pump; the water guiding path is disposed at the front wall of the water tank, Connecting the water inlet and dispersing the washing water; the plurality of water outlets are disposed in the water guiding path, so that the washing water is spouted between the inner side surface of the front wall of the water tank and the front end wall surface of the rotating drum, and the plurality of injection ports will be plural The washing water spouted from the nozzle is sprayed into a plurality of injection ports in the rotating drum; the plurality of water outlets are in the front wall of the water tank Opening with a specific circumferential direction between the front end wall surface of the rotating drum; the inner surface of the front end wall of the water tank has a guiding surface for guiding the washing water sprayed from the plurality of water outlets to the inner surface of the rotating drum Direction; the washing water spouted by the plurality of water outlets flows along the inner surface of the front wall of the water tank and the guiding surface, and is sprayed from the plurality of injection ports.

This type of drum type washing machine can minimize the water flow pressure loss of the water inlet in the water circulation system. Moreover, the maximum outlet water flow pressure can be ensured, so even if a small amount of water is used, high water pressure washing water can be ejected from the plurality of injection ports. Therefore, for low-volume and high-capacity laundry, more powerful washing water can be sprayed, so that the permeability of the washing water to the laundry and the washing effect can be improved.

Simple illustration

Fig. 1 is a cross-sectional view showing a schematic structure of a drum type washing machine in accordance with a first embodiment of the present invention.

Fig. 2A is a cross-sectional view showing a circulation pump used in the drum type washing machine.

Fig. 2B is a cross-sectional view showing a circulation pump used in the drum type washing machine.

Fig. 3A is a perspective view of a main part of the water tank of the drum type washing machine.

Fig. 3B is an inside side view of the front wall of the water tank of the drum type washing machine as seen from the inside.

Fig. 4 is a cross-sectional view showing the vicinity of a water guiding path of a water circulation path of the drum type washing machine.

Fig. 5 is a front elevational view showing a state in which the drum type washing machine ejects washing water.

Fig. 6 is a plan view showing the inner surface of the front wall of the water tank viewed from the direction of the rotation axis of the rotary drum, in the drum type washing machine according to the second embodiment of the present invention.

Fig. 7 is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the third embodiment of the present invention.

Fig. 8A is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the fourth embodiment of the present invention.

Fig. 8B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L-L line is cut.

Fig. 8C is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the R-R line is cut.

Fig. 9A is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the fifth embodiment of the present invention.

Fig. 9B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L1-L1 line is cut.

Fig. 9C is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the R1-R1 line is cut.

Fig. 9D is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L3-L3 line is cut.

Fig. 10 is a front elevational view showing a state in which the drum type washing machine ejects washing water.

Detailed description of the preferred embodiment

Embodiments of the present invention will be described below with reference to the drawings. Further, the present embodiment does not limit the present invention.

(Embodiment 1)

1 is a cross-sectional view showing a schematic structure of a drum type washing machine in accordance with a first embodiment of the present invention. FIG. 2A is a cross-sectional view of a circulation pump used in the drum type washing machine, and FIG. 2B is a cycle used in the drum type washing machine. A cross-sectional view of the pump.

The drum type washing machine according to the first embodiment automatically controls the motor 6, the water supply system 7, the drainage system 8, and the drying system 9 shown in Fig. 1 according to the mode setting and control program, and at least performs the washing step and washing. The function of the steps, the dehydration step, and the drying step. However, the drying system 9 can be omitted. Further, under the above premise, the washing water in the water tank 3 can be circulated by the water circulation system 16 in the period of the washing preparation step, the washing process, the cleaning process, and the like to prevent the detergent from being dissolved or dissolving too quickly. The function of washing and washing can be improved.

In addition, the water supply system 7 can supply water in a timely manner as indicated by a solid arrow by means of a switch of a solenoid valve, or the water supply can be used to timely put the detergent in the detergent storage portion into the water tank 3. The drain system 8 is drained by a switch of the drain valve 19 at the end of the washing step, at the end of the washing step, and the like as indicated by the dotted arrow. Further, the water circulation system 16 sucks the washing water in the water tank 3 by the circulation pump 20, and returns it to the water tank 3 repeatedly.

That is, the drum type washing machine according to the first embodiment of the present invention includes the selector drum 4, the water tank 3, the motor 6, and the water circulation system 16, the drive motor 6, and the circulation pump 20, and at least one of the washing step and the washing step. step. Here, the rotary drum 4 is formed in a bottomed cylindrical shape. The rotary drum 4 is disposed in the water tank 3 such that the direction of the rotary shaft 10 is inclined from the front side to the bottom inner side surface in a horizontal or horizontal downward direction. The motor 6 rotates and controls the rotary drum 4. The water circulation system 16 circulates the washing water in the water tank 3 through the circulation path connected to the water tank 3 by using the circulation pump 20.

The mode such as the operation program and the selection of various functions are input from the operation panel 21 provided on the upper front portion of the washing machine body 2. The control system 22 displays the display means on the operation panel 21 based on the input information, notifies the user of the operation program and the like. Further, after the start of the operation is set using the input setting means of the operation panel 21, the water detecting means or the like for detecting the water in the water tank 3 outputs the data to the control system and starts driving, and then controls the drain valve 19, the water supply valve, and the like. The operation is carried out by washing, dehydrating, drying, and the like.

Further, the main body opening 2b is provided on the front side of the washing machine body 2, and is configured to be disposed on the rotating drum 4 by the second opening 13 provided on the front side of the water tank 3 and the first opening 54 provided on the front side of the rotating drum 4. Take and place the laundry inside. The body opening 2b is provided with a switch door 5. The opening and closing door 5 seals or opens the second opening 13 via the sealing material 14 fitted to the opening edge of the second opening 13.

In addition, the driving of the rotary drum 4 is performed in a fast forward circular arc rotation mode, and has a forward and reverse circular rotation driving mode, and a forward and reverse continuous rotation driving mode. Here, in the fast forward circular arc rotation mode, the rotary drum 4 performs rotation of more than 90 degrees and less than 180 degrees. The positive and negative arc rotation drive mode is a fast forward and reverse arc rotation interleaving. The forward and reverse continuous rotation driving mode is a rotation speed of the rotary drum 4, so that the laundry thrown up by the rotation of the rotary drum 4 falls from the height of gravity to alternately rotate forward and backward. In the washing step, or in the washing and washing step, the positive and negative arc rotation driving modes and the forward and reverse continuous rotation driving modes are interactively performed.

In this way, the rotary drum 4 can rotate the laundry up to a position exceeding 90 degrees and less than 180 degrees by a rapid arc rotation of more than 90 degrees and less than 180 degrees, and an impatient brake. Moreover, by the sudden braking of the last stage of the throwing on the laundry, a braking state is generated, which can cause the laundry to fall from the inner surface of the rotary drum 4 due to inertia and its own weight, and fall on the upper side due to its own weight. The opposite side to the left and right. Therefore, for the laundry containing the washing water, which is very swollen and moist, and in a soft and slippery state, a particularly strong rinsing action can be applied, that is, the mechanical force is transmitted to the laundry, so that the washing performance can be improved.

Moreover, the forward and reverse arc rotation driving modes are mutually performing a forward fast arc rotation and an inverse fast arc rotation. By the positive and negative arc rotation driving mode, the laundry is thrown up by the fast circular rotation motion which is performed by the forward and reverse interaction, and the upper throwing position and the falling position of each arc rotation driving are exchanged left and right. Therefore, the washing can be prevented from knotting, and at the same time, the washing effect is further enhanced. Moreover, the number of times the mechanical force is transmitted to the laundry can be increased, and the washing performance can be improved.

Moreover, by the high rinsing action, it is possible to suppress the knotting of the laundry caused by the washing and washing steps. Therefore, in the positive and negative arc rotation mode, effective flapping cleaning is performed for a long time, and the washing effect and the washing effect can be improved.

Further, the positive and negative arc rotation driving mode can reduce the knotting, twisting, wrinkling and the like of the laundry, but it is difficult to replace the upper and lower positions of the laundry, and the laundry at the bottom of the rotary drum 4 is difficult to move. This situation is likely to cause uneven cleaning, but as long as the positive and negative continuous rotation drive mode is used together, the upper and lower position exchange of the laundry can be achieved. That is, the positive and negative arc rotation driving mode can reduce the knotting, twisting and wrinkling of the laundry. Moreover, the positive and negative continuous rotation driving mode can reduce the uneven application of the mechanical force to the laundry. The two modes have two different effects on washing and washing. Specifically, the positive and negative arc rotation driving mode can reduce the knotting, twisting, and wrinkling of the laundry, thereby causing the effect of manual washing. The positive and negative continuous rotation driving mode can continuously flip the laundry in a large amount, reduce the unevenness in the laundry, achieve an average and can effectively prevent the stubborn cleaning effect.

The circulation pump 20 is fixed to the platen 2a as shown in Fig. 1 . The water discharge side path 16b connected from the circulation pump 20 in the water circulation system 16 extends to the front of the washing machine body 2 where the second opening 13 is located. Specifically, the circulation pump 20 is located in the resin pump casing 20b in which the rotary vane 20a is housed, as shown in FIGS. 2A and 2B. Further, the circulation pump 20 is integrated with the bearing partition 20d1 at the tip end of the motor casing 20d of the circulation motor 20c, and the rotary vane 20a is directly connected to the motor shaft 20e and fitted into the resin mount 35.

3A is a perspective view of a main part of a water tank of a drum type washing machine according to Embodiment 1 of the present invention, and FIG. 3B is an inside side view of the front wall of the water tank of the drum type washing machine viewed from the inside, and FIG. 4 is a water cycle of the drum type washing machine. A cross-section of the path leading to the water path. As shown in Fig. 3A, below the front wall 3h of the water tank 3, a projecting portion 3a which is slightly U-shaped and protrudes forward is formed. The cover 55 having the same outer shape as that of the protruding portion 3a is such that, as shown in Figs. 3 and 4, the inside of the cover 55a is inserted through the washer 55a, and the water guiding path 55b is attached by screwing or the like.

As shown in FIG. 3A, the lower left portion of the protruding portion 3a (the lower right portion in FIG. 3B), that is, the position at the lower left of the center of rotation of the rotary drum 4, is formed with the opening of the rotary drum 4 in the vertical direction. Nozzle 51. In order to close the opening of the water inlet 51, it is connected to the water outlet side path 16b of the water circulation system 16. Further, the respective upper end portions of the cover 55 which are slightly U-shaped are formed to form a notch portion 55c which does not have a sealing structure including the gasket 55a. The upper end portion of the water guiding path 55b is formed with a notch portion 55c, and a water outlet 55d having a wide opening in the circumferential direction is formed between the notch portion 55c and the inner side surface of the front end wall 3h of the water tank 3 corresponding to the notch portion 55c. Here, the water guiding path 55b is formed in a slightly U-shaped shape by the protruding portion 3a and the cover 55.

The washing water pressurized by the circulation pump 20 flows into the water guiding path 55b via the water outlet side path 16b of the water circulation system 16. Then, the washing water is sprayed by the water outlet 55d to the inner side surface of the front end wall 3h of the water tank 3, and between the surfaces of the front end wall 4b of the corresponding front end wall 3h of the rotary drum 4. The washing water passes through a flow path 52 formed between the inner side surface of the front end wall 3h and the front end wall 4b. In addition, the washing water is ejected into the rotary drum 4 by the injection port 53 via the second opening 13 provided on the front side of the water tank 3 through the second opening 13 in the direction toward the rotary drum 4 (the direction of the arrow a in Fig. 4).

Further, the inlet direction of the water inlet 51, the water outlet 55d, and the injection port 53 is directed toward the slightly rotating center side of the rotary drum 4 (the direction of the arrow in FIG. 3B). Further, between one water inlet 51 and two water outlets 55d, a closed water guiding path 55b is connected. Therefore, the water outlet 55d far from the water inlet 51 can prevent the flow pressure of the washing water from the water inlet 51 to the water outlet 55d from being lowered by the internal shape of the water guiding path 55b.

In this way, the water circulation system 16 is provided with a water inlet 51, a water guiding path 55b, a plurality of water outlets 55d, and a plurality of injection ports 53. Here, the water inlet 51 is provided on the outer peripheral wall of the water tank 3, and is connected to the water outlet side path 16b extending from the circulation pump 20. The water guiding path 55b is provided on the front end wall 3h of the water tank 3, and is connected to the water inlet 51 to divide the washing water. The plurality of water outlets 55d are provided in the water guiding path 55b, and spray the washing water between the inner side surface of the front end wall 3h of the water tank 3 and the surface of the front end wall 4b of the rotary drum 4. Then, the washing water sprayed from the plurality of water outlets 55d is ejected into the rotary drum 4 by the plurality of injection ports 53.

Further, the plurality of water outlets 55d are opened in a specific circumferential direction between the inner side surface of the front end wall 3h of the water tank 3 and the front end wall 4b of the rotary drum 4. Then, the inner side surface of the front end wall 3h of the water tank 3 has a guide surface 56 for guiding the plurality of water outlets 55d to the inside of the rotary drum 4. Further, the washing water sprayed from the plurality of water outlets 55d flows along the inner side surface of the front end wall 3h of the water tank 3 and the guide surface 56, and is then ejected by the plurality of injection ports 53. Then, the opening direction of the water inlet 51, the plurality of water outlets 55d, and the plurality of injection ports 53 is directed toward the rotation center side of the rotary drum 4. According to the above configuration, the drum type washing machine according to the first embodiment of the present invention can suppress the flow pressure loss between the washing water from the water inlet 51 and the water outlet 55d. Therefore, even if the amount of water is small, high-pressure washing water can be ejected from the two injection ports 53; even for low-volume or high-capacity laundry, more powerful washing water can be ejected. As a result, in the drum type washing machine according to the first embodiment of the present invention, the permeability of the washing water to the laundry can be improved, so that the washing effect can be improved.

Fig. 5 is a front elevational view showing a state in which the drum type washing machine according to the first embodiment of the present invention ejects washing water. The laundry at the start of washing is in a fluffy state without washing water, and even if the laundry pile is in the circumferential direction near the left injection port 53 shown in Fig. 5, the rotating drum 4 can be rotated from the right side ejection opening 53. The injection is performed in the vicinity of the first opening 54. Then, the laundry near the ejection opening 53 is quickly wetted, and the volume is reduced, and the state in which the left ejection opening 53 is blocked by the laundry can be released.

Further, in the drum type washing machine according to the first embodiment of the present invention, the washing liquid can be made effective regardless of the amount of laundry in the rotary drum 4. Further, since the position of the water outlet 55d does not contact the laundry in the rotary drum 4, it is possible to prevent the laundry from catching the water outlet, hinder necessary operations such as washing, washing, drying, or the like, and prevent the laundry from being damaged or broken. The jetting effect of the washing water is further improved by the action of switching the position of the laundry up and down in the forward and reverse continuous rotation driving mode, and the action of exchanging the position of the laundry in the forward and reverse circular rotation driving modes.

Further, in the drum type washing machine according to the first embodiment of the present invention, by changing the number of the water outlets 55d and changing the shape of the injection port 53 corresponding to the water outlet 55d, the spray angle of the washing water to the rotary shaft 10 of the rotary drum 4 can be made. The spray spread angles vary.

As a result, the diffusion of the one side jet opening 53 toward the rotating shaft 10 of the rotary drum 4 is small to eject the depth direction of the rotary drum 4. On the other hand, the injection port 53 is sprayed with a large diffusion, and the laundry which is less likely to be wetted near the center of the rotary drum 4 is quickly wetted, thereby improving the washing effect. Further, the volume of the laundry near the center of the rotary drum 4 to the deep portion is reduced by the wetting of the washing water, and the laundry in the rotary drum 4 is easily moved early. Therefore, the washing effect can be improved, and at the same time, because the volume of the laundry is reduced, the washing water can be sprayed from all the washing materials in the increased space, and the washing effect is doubled.

Further, in the first embodiment, the water outlet 55d is provided in two places on the left and right sides, but it may be three or more.

(Embodiment 2)

Fig. 6 is a plan view showing the inner surface of the front wall of the water tank viewed from the direction of the rotation axis of the rotary drum, in the drum type washing machine according to the second embodiment of the present invention. In the second embodiment of the present invention, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted, and only differences will be described.

As shown in Fig. 6, a line segment connecting the center of rotation of the rotary drum 4 and the water inlet 51 is formed as a first line 61 on a plane perpendicular to the direction of the rotary shaft 10 of the rotary drum 4. Then, on both sides of the first line 61 on the plane, a plurality of water outlets 55d different in distance from the water inlet 51 are provided. A line segment connecting the center of rotation of the rotary drum 4 and the water outlet 55d closer to the water inlet 51 is used as the second line 62; the center of rotation of the rotary drum 4 and the water outlet 55d far from the water inlet 51 are provided. The connected line segment is used as the third line 63. Further, the angle α is an angle between the first line 61 and the second line 62, and the angle β is an angle between the first line 61 and the third line 63. Further, the line projected on the plane perpendicular to the direction of the rotation axis 10 of the rotary drum 4 by the lead straight line of the rotation center of the rotary drum 4 is the fourth line 64.

The water inlet 51 is disposed at a position at an angle γ from the fourth line 64. That is, the angle between the first line 61 and the fourth line 64 is an angle γ. When the angle α = angle β is established, the two washing water jets ejected from the water outlet 55d and ejected from the jet port 53 are ejected from the water inlet 51 through the water guiding path 55b, and the pressure is almost the same.

In contrast, when the angle α < angle β, the jet water sprayed by the jet port 53 on the angle α side, the running water pressure is stronger than the angle α = angle β. On the other hand, the washing water sprayed by the injection port 53 on the angle β side, the running water pressure is weaker than the angle α = angle β.

As described above, the drum type washing machine according to the second embodiment of the present invention has an angle α < angle β. With the above configuration, as shown in Fig. 5, the washing water sprayed from the front side of the ejection opening 53 on the left side is slightly upward as shown by the shower shape A, and is carried out at a slightly linear diffusion angle. injection. The washing water sprayed from the front side of the jet opening 53 is ejected in a fan shape having a more diffused shape than the shower shape A as shown in the shower shape B.

That is, the washing water sprayed by the different water outlets 55d is provided with different flow pressures, and is injected into the rotary drum 4 from the left and right injection ports 53 through the first opening 54 of FIG. Therefore, it is possible to realize an injection having a different injection angle to the rotation axis of the rotary drum 4, and an injection having a different injection range and diffusion angle.

Further, in the present embodiment, the water inlet 51 is disposed closer to the right water outlet 55d in Fig. 6 and further away from the left water outlet 55d. Therefore, the discharge water pressure of the right side water outlet 55d which is closer to the distance can be higher than the discharge water pressure of the water outlet 55d which is far away. Further, the injection port 53 which is closer to the water inlet 51 can eject the washing water, and the injection angle to the rotary shaft 10 of the rotary drum 4 can be larger than the injection port 53 which is farther from the water inlet 51. Further, the discharge water can be compressed to reduce the small spray diffusion angle, and the laundry can be sprayed on the laundry on the back side (deep side) of the rotary drum.

On the other hand, when the washing water is sprayed from the injection port 53 which is far from the water inlet 51, the injection angle to the rotary shaft 10 of the rotary drum 4 can be made smaller than the injection opening 53 which is closer to the water inlet 51. Further, the discharge water pressure can be lowered, and the spray diffusion angle can be increased, and the laundry on the front side (open side) of the rotary drum 4 can also be sprayed with washing water.

Therefore, from the position reversed from Fig. 6, that is, the left injection port 53 shown in Fig. 5, the rotation of the rotary drum 4 in the direction of the rotation axis 10 is small, and the injection toward the depth of the rotary drum 4 is small. . Therefore, the jet which is diffused by the right injection port 53 is large, and the washing water is ejected from the laundry which is hard to be wetted from the vicinity of the center of the rotary drum 4 to the deep portion. Further, the volume of the laundry near the center of the rotary drum 4 to the deep portion is reduced by the wetness of the washing water, so that the laundry activity in the rotary drum 4 is more convenient. As a result, the slap cleaning effect at the time of washing can be improved, and the washing water can be sprayed on all the laundry by the space generated by the reduction in the volume of the laundry.

Further, the laundry at the start of washing is in a fluffy state without washing water, and even if the laundry is clogged in the circumferential direction near the left injection port 53 as shown in Fig. 5, the following situation occurs. . In the vicinity of the first opening 54 of the rotary drum 4, the spray having a large diffusion can be performed from the right injection port 53, and the laundry in the vicinity of the injection port 53 can be quickly wetted to reduce the volume. In this way, the state in which the laundry is blocked near the left injection port 53 can be released.

Further, if the position of the water inlet 51 is set to the arrangement side of the circulation pump 20, the water outlet side path 16b connected to the water inlet 51 from the circulation pump 20 can be minimized. The water flow pressure loss in the water circulation system 16 can then be minimized and the water flow pressure at the water outlet 55d can be ensured to be at a maximum. In this way, even if the amount of water is small, the washing water having a higher water pressure can be ejected from the injection port 53, and the strong washing water can be sprayed regardless of the low-volume or high-capacity washing material, thereby improving the permeability of the washing water to the washing material. Therefore, the cleaning effect can be improved.

Further, the jetting effect of the washing water is further improved by the action of switching the laundry position up and down in the forward and reverse continuous rotation driving mode, and the action of swapping the laundry position in the forward and reverse circular arc driving modes.

Further, in the present embodiment, the same effect can be obtained even if the injection port 53, the water outlet 55d, and the water inlet 51 are formed as a right and left inversion structure.

(Embodiment 3)

Fig. 7 is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the third embodiment of the present invention. In the second embodiment of the present invention, the same components as those in the first embodiment or the second embodiment will be denoted by the same reference numerals and will not be described.

As shown in Fig. 7, the opening cross-sectional area of the water inlet 51 is S51; the rotating shaft 10 is disposed in the water outlet 55d on the left and right sides, and the water outlet 55d on the left side of the front side (the front side represents the front view of Fig. 5) The sectional area of the opening is S55d (L), and the opening sectional area of the water outlet 55d on the right side of the front side (the front side represents the front view of FIG. 5) is S55d (R); the sectional area ratio is S55d (L) / S51 = SL, The sectional area ratio S55d(R)/S51=SR.

When the sectional area ratio SL = SR (> 1 or ≦ 1) is established, the two washing water jets ejected from the water outlet 55d and ejected from the ejection port 53 are ejected from the water inlet 51 through the water guiding path 55b, and the pressure is almost the same.

In contrast, when the sectional area ratio SL<SR, SL<1 and SR≧1 are established, the water pressure of the washing water generated between the water inlet 51 and the front left water outlet 55d is the ratio of the sectional area to the SL= SR was even bigger when it was founded. The jet of water sprayed from the front left side injection port 53 has a stronger flow pressure than when the sectional area ratio SL = SR is established. On the other hand, the spray of the washing water sprayed from the front right injection port 53 has a flow pressure which is weaker than when the sectional area ratio SL = SR is established.

As described above, in the drum type washing machine according to the third embodiment of the present invention, the opening sectional area of the plurality of water outlets 55d is different from the opening sectional area of the water inlet 51.

With the above configuration, as shown in Fig. 5, the washing water sprayed from the front side of the ejection opening 53 on the left side is slightly upward as shown by the shower shape A, and is carried out at a slightly linear diffusion angle. injection. The washing water sprayed from the front side of the jet opening 53 is ejected in a fan shape having a more diffused shape than the shower shape A as shown in the shower shape B.

That is, the washing water sprayed by the different water outlets 55d is provided with different flow pressures, and is injected into the rotary drum 4 from the left and right injection ports 53 through the first opening 54 of FIG. Therefore, it is possible to realize an injection having a different injection angle to the rotation axis of the rotary drum 4, and an injection having a different injection range and diffusion angle.

From the position reversed from Fig. 7, that is, the left injection port 53 shown in Fig. 5, the rotation axis direction 10 of the rotary drum 4 is less diffused, and is ejected toward the depth of the rotary drum 4. Therefore, the jet which is diffused by the right injection port 53 is large, and the washing water is ejected from the laundry which is hard to be wetted from the vicinity of the center of the rotary drum 4 to the deep portion. Further, the volume of the laundry near the center of the rotary drum 4 to the deep portion is reduced by the wetness of the washing water, so that the laundry activity in the rotary drum 4 is more convenient. As a result, the slap cleaning effect at the time of washing can be improved, and the washing water can be sprayed on all the laundry by the space generated by the reduction in the volume of the laundry.

Further, the laundry at the start of washing is in a fluffy state without washing water, and even if the laundry is clogged in the circumferential direction near the left injection port 53 as shown in Fig. 5, the following situation occurs. . In the vicinity of the first opening 54 of the rotary drum 4, the spray having a large diffusion can be performed from the right injection port 53, and the laundry in the vicinity of the injection port 53 can be quickly wetted to reduce the volume. In this way, the state in which the laundry is blocked near the left injection port 53 can be released.

Further, the jetting effect of the washing water is further improved by the action of switching the laundry position up and down in the forward and reverse continuous rotation driving mode, and the action of swapping the laundry position in the forward and reverse circular arc driving modes.

Further, in the present embodiment, the same effect can be obtained even if the injection port 53, the water outlet 55d, and the water inlet 51 are formed as a right and left inversion structure.

(Embodiment 4)

8A is an inside side view of the front wall of the water tank viewed from the inside, and FIG. 8B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the LL line is cut; FIG. 8C An enlarged cross-sectional view when the water guiding path of the drum type washing machine is cut off at the RR line. In the fourth embodiment of the present invention, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

As shown in Fig. 8A, the water inlet 51 and the water outlet 55d, which are disposed at the left and right sides of the rotating shaft 10, are respectively connected by a water guiding path 55b which is closed and almost planar and extends in a substantially U-shape. Here, as shown in FIGS. 8B and 8C, the cross-sectional area of the water guiding path 55b on the front left side (here, the front side represents the front view of FIG. 5) is S55b (L), and the front side is right side (here, the front side represents the front side of FIG. 5 The cross-sectional area of the water guiding path 55b of the viewing angle is S55b (R).

In the two water guiding paths 55b, when the sectional area S55b (L) = the sectional area S55b (R) is established, two washing water jets ejected from the water outlet 55d and ejected by the ejection port 53 from the water inlet 51 through the water guiding path 55b The pressure is almost the same.

In contrast, when the sectional area S55b (L) < the sectional area S55b (R) is established, the water flow pressure of the washing water from the water inlet 51 to the front left side water outlet 55d will be larger than the sectional area S55b (L) = The sectional area S55b(R) is larger when it is established. On the other hand, the water sprayed from the front right injection port 53 is weaker than the sectional area S55b (L) = the sectional area S55b (R).

As described above, the drum type washing machine according to the fourth embodiment of the present invention has the cross-sectional area of the plurality of water guiding paths 55b.

With the above configuration, as shown in Fig. 5, the washing water sprayed from the front side of the ejection opening 53 on the left side is slightly upward as shown by the shower shape A, and is carried out at a slightly linear diffusion angle. injection. Further, as shown in the shower shape B, the washing water sprayed from the front side of the jet port 53 is directed downward from the shower shape A, and is sprayed in a fan shape having a more diffused shape than the shower shape A.

That is, the washing water sprayed by the different water outlets 55d is provided with different flow pressures, and is injected into the rotary drum 4 from the left and right injection ports 53 through the first opening 54 of FIG. Therefore, it is possible to realize an injection having a different injection angle to the rotation axis of the rotary drum 4, and an injection having a different injection range and diffusion angle.

Further, by reducing the sectional area of the specific position of the water guiding path 55b, the discharge pressure of the water outlet 55d to which the water guiding path 55b is connected can be increased. Then, the washing water spray from the ejection port 53 can increase the injection angle to the rotary shaft 10 of the rotary drum 4, and reduce the injection range and the diffusion angle.

From the position reversed from Fig. 8A, that is, the left injection port 53 shown in Fig. 5, the rotation of the rotary drum 4 in the direction of the rotation axis 10 is small, and the injection is made toward the depth of the rotary drum 4. Therefore, the jet which is diffused by the right injection port 53 is large, and the washing water is ejected from the laundry which is hard to be wetted from the vicinity of the center of the rotary drum 4 to the deep portion. Further, the volume of the laundry near the center of the rotary drum 4 to the deep portion is reduced by the wetness of the washing water, so that the laundry activity in the rotary drum 4 is more convenient. As a result, the slap cleaning effect at the time of washing can be improved, and the washing water can be sprayed on all the laundry by the space generated by the reduction in the volume of the laundry.

Further, the laundry at the start of washing is in a fluffy state without washing water, and even if the laundry is clogged in the circumferential direction near the left injection port 53 as shown in Fig. 5, the following situation occurs. . In the vicinity of the first opening 54 of the rotary drum 4, the spray having a large diffusion can be performed from the right injection port 53, and the laundry in the vicinity of the injection port 53 can be quickly wetted to reduce the volume. In this way, the state in which the laundry is blocked near the left injection port 53 can be released.

Further, the jetting effect of the washing water is further improved by the action of switching the laundry position up and down in the forward and reverse continuous rotation driving mode, and the action of swapping the laundry position in the forward and reverse circular arc driving modes. Further, in the present embodiment, the same effect can be obtained even if the injection port 53, the water outlet 55d, and the water inlet 51 are formed as a right and left inversion structure.

(Embodiment 5)

Fig. 9A is a perspective view showing the inner side view of the front wall of the water tank when the drum type washing machine according to the fifth embodiment of the present invention is seen from the inside; and Fig. 9B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L1-L1 line is cut; 9C is an enlarged cross-sectional view showing a water guiding path of the drum type washing machine when the R1-R1 line is cut, and FIG. 9D is an enlarged cross-sectional view when the water guiding path of the drum type washing machine is cut off by the L3-L3 line. And Fig. 10 is a front view showing a state in which the drum type washing machine of the fifth embodiment of the present invention ejects washing water. In the fifth embodiment of the present invention, the same components as those in the first embodiment are denoted by the same reference numerals and will not be described.

As shown in Fig. 9A, the water inlet 51 and the water outlet 55d disposed on the left and right sides of the rotating shaft 10 are respectively in a closed state and are almost planar (extremely narrowing the unevenness before and after) and extending. It is connected by a slightly U-shaped water guiding path 55b. Here, as shown in Fig. 9B, in the water guiding path 55b on the front left side (the front side represents the front view of Fig. 10), there is a cross section near the water inlet 51. Further, as shown in Fig. 9C, the rib 3f provided in the protruding portion 3a of the water tank 3 also has a cross-sectional portion. Further, as shown in Fig. 9D, in the front of the curved portion of the protruding portion 3a of the water tank 3, and the groove width of the protruding portion 3a is narrower than the cross-sectional portion near the water inlet 51, there is also a cross-sectional portion. The cross-sectional areas of the respective sections are respectively S55b (L1), S55b (L2), and S55b (L3).

When S55b(L1)>S55b(L2), S55b(L1)>S55b(L3) is established, the water flow pressure of the washing water from the water inlet 51 to the front left side water outlet 55d has a sectional area of S55b (L1). The section of the section hardly changes. However, in the cross-sectional portion of the rib 3f and the cross-sectional portion where the groove portion 3a is narrower than the cross-sectional portion near the water inlet 51, the water flow pressure of the washing water becomes large. The washing water sprayed from the water outlet 55d and discharged by the injection port 53 from the water inlet 51 through the front left side water guiding path 55b is stronger when the sectional area S55b (L1) = S55b (L2) = S55b (L3) pressure.

As described above, in the drum type washing machine of the fifth embodiment, the cross-sectional area of the water guiding path 55b gradually decreases as it approaches the water outlet 55d. Further, if the structure is S55b (L1) > S55b (L2) and S55b (L1) > S55b (L3) > S55d, the washing water sprayed from the injection port 53 through the front left side water outlet 55d can be used more strongly. The pressure is sprayed on the laundry. As shown in Fig. 10, the shower shape A' is sprayed with washing water in a direction slightly lower than the shower A and having a plurality of diffusion angles. However, in the above-described configuration, the washing water from the left injection port 53 as viewed from the front is ejected at an angle which is slightly higher than the shower shape A' and which suppresses linear diffusion as indicated by the shower shape A. That is, by changing the sectional area in the path of the water guiding path 55b, the water flow pressure, the water flow speed, and the water flow rate of the water guiding path 55b can be freely changed. As a result, the spray water jet from the injection port can also adjust the spray angle, the spray width, and the spread angle to the rotary shaft 10 of the rotary drum 4.

Further, in the present embodiment, the same effect can be obtained even if the injection port 53, the water outlet 55d, and the water inlet 51 are formed as a right and left inversion structure.

2. . . Washing machine body

2a. . . Platen

2b. . . Body opening

3. . . sink

3a. . . Protruding

3h, 4b. . . Front wall

4. . . Rotating drum

5. . . Switch door

6. . . motor

7. . . water supply system

8. . . Drainage system

9. . . Drying system

10. . . Rotary axis

13. . . Second opening

14. . . Sealing material

16. . . water circulatory system

16b. . . Outlet side path

19. . . Drain valve

20. . . Circulating pump

20a. . . Rotating blade

20b. . . Pump housing

20c. . . Circulating motor

20d. . . Motor housing

20d1. . . Bearing next door

20e. . . Motor shaft

twenty one. . . Operation panel

twenty two. . . Control System

35. . . Mount

51. . . water intake

52. . . Flow path

53. . . Injection port

54. . . First opening

55. . . cover

55a. . . washer

55b. . . Water guiding path

55c. . . Notch

55d. . . Outlet

56. . . Guide surface

61. . . Line 1

62. . . Line 2

63. . . Line 3

64. . . Line 4

α, β, γ. . . angle

A, A', B. . . Shower shape

S55b (L), S55b (R). . . Sectional area

S55b (L1), S55b (L2), S55b (L3). . . Sectional area

S55d (L), S55d (R). . . Sectional area

L1, L2, L3. . . line

Fig. 1 is a cross-sectional view showing a schematic structure of a drum type washing machine in accordance with a first embodiment of the present invention.

Fig. 2A is a cross-sectional view showing a circulation pump used in the drum type washing machine.

Fig. 2B is a cross-sectional view showing a circulation pump used in the drum type washing machine.

Fig. 3A is a perspective view of a main part of the water tank of the drum type washing machine.

Fig. 3B is an inside side view of the front wall of the water tank of the drum type washing machine as seen from the inside.

Fig. 4 is a cross-sectional view showing the vicinity of a water guiding path of a water circulation path of the drum type washing machine.

Fig. 5 is a front elevational view showing a state in which the drum type washing machine ejects washing water.

Fig. 6 is a plan view showing the inner surface of the front wall of the water tank viewed from the direction of the rotation axis of the rotary drum, in the drum type washing machine according to the second embodiment of the present invention.

Fig. 7 is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the third embodiment of the present invention.

Fig. 8A is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the fourth embodiment of the present invention.

Fig. 8B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L-L line is cut.

Fig. 8C is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the R-R line is cut.

Fig. 9A is a view showing an inner side view of the front wall of the water tank viewed from the inside in the drum type washing machine according to the fifth embodiment of the present invention.

Fig. 9B is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L1-L1 line is cut.

Fig. 9C is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the R1-R1 line is cut.

Fig. 9D is an enlarged cross-sectional view showing the water guiding path of the drum type washing machine when the L3-L3 line is cut.

Fig. 10 is a front elevational view showing a state in which the drum type washing machine ejects washing water.

2. . . Washing machine body

2a. . . Platen

2b. . . Body opening

3. . . sink

4. . . Rotating drum

5. . . Switch door

6. . . motor

7. . . water supply system

8. . . Drainage system

9. . . Drying system

10. . . Rotary axis

13. . . Second opening

14. . . Sealing material

16. . . water circulatory system

16b. . . Outlet side path

19. . . Drain valve

20. . . Circulating pump

twenty one. . . Operation panel

twenty two. . . Control System

54. . . First opening

Claims (4)

A drum type washing machine comprising: a rotating drum formed with a bottomed cylindrical shape; and a water tank disposed such that the rotating drum is oriented from the front side toward the inner side of the bottom, and the rotating shaft is horizontal or horizontally downward. a motor that controls the rotation of the rotating drum; and a water circulation system that causes the washing water in the water tank to circulate in the rotating drum via a circulation path connected to the water tank; and drives the motor and the above The circulation pump is configured to perform at least one of a washing step and a washing step. The drum type washing machine is characterized in that: the water circulation system is provided with: a water inlet, which is disposed on the outer peripheral wall of the water tank, and is connected to the circulation from the circulation path. a water outlet side path of the pump; a water guiding path is disposed at an end wall of the water tank, connecting the water inlet and dispersing the washing water; and the plurality of water outlets are disposed in the water guiding path to make the washing water in the front wall of the water tank The side surface is spouted between the front end wall surface of the rotating drum and the predetermined circumferential direction Openings; and a plurality of ejection port, the outlet of the complex of the above-described discharge of the washing water, injected into the rotary drum, the front end face of the inner wall of the water tub having a guide surface, the guide surface that the system The washing water discharged from the water outlet flows along the inner surface of the front end wall of the water tank and is directed toward the inner surface of the rotating drum, and is sprayed from the injection port, and the water inlet, the water outlet, and the opening direction of the injection port Oriented toward the approximate rotational center side of the rotating drum, and the angle between the rotating drum and the line perpendicular to the approximate rotating center of the rotating drum and the adjacent rotating center of the rotating drum is sag The angle between the line and the line segment formed by the approximate rotation center of the rotating drum and the other injection port is larger, and the distance between the injection port and the water inlet of the larger angle is smaller than the above-mentioned angle The distance between the injection port and the above water inlet is short. The drum type washing machine according to claim 1, wherein the ratio of the sectional area of each water outlet to the sectional area of the water inlet is two or more. In the drum type washing machine according to the first or second aspect of the invention, the cross-sectional area of the predetermined position of the water guiding port and the water guiding path in which the water inlet and the two or more water outlets are different is two or more. The drum type washing machine according to claim 3, wherein the cross-sectional area of the water guiding path in which the water inlet and the two or more water outlets are different is smaller as it is closer to the water outlet.