WO2016084280A1 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
WO2016084280A1
WO2016084280A1 PCT/JP2015/004341 JP2015004341W WO2016084280A1 WO 2016084280 A1 WO2016084280 A1 WO 2016084280A1 JP 2015004341 W JP2015004341 W JP 2015004341W WO 2016084280 A1 WO2016084280 A1 WO 2016084280A1
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WO
WIPO (PCT)
Prior art keywords
washing
discharge port
water channel
water
tub
Prior art date
Application number
PCT/JP2015/004341
Other languages
French (fr)
Japanese (ja)
Inventor
井上　恵介
東山　義幸
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN201580034624.8A priority Critical patent/CN106661808B/en
Priority to SG11201700781PA priority patent/SG11201700781PA/en
Publication of WO2016084280A1 publication Critical patent/WO2016084280A1/en
Priority to PH12017500090A priority patent/PH12017500090A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to a washing machine, and more particularly to a washing machine that performs washing, rinsing, and dehydration processes.
  • This type of washing machine which has been proposed in the past, circulates the washing liquid using a circulation channel installed in the washing / dehydrating tub and applies the washing liquid to the clothing from the top of the washing / dehydrating tub.
  • a circulation channel installed in the washing / dehydrating tub and applies the washing liquid to the clothing from the top of the washing / dehydrating tub.
  • FIG. 9 is a longitudinal sectional view of a conventional washing machine described in Patent Document 1.
  • the washing and dewatering tub 53 is supported in a vibration-proof manner by a suspension 54 in the main body 55.
  • a plurality of circulation water channel covers 56 are attached to the inner surface of the washing and dewatering tank 53, and a plurality of independent circulation water channels 57a and 57b are formed between the plurality of circulation water channel covers 56 and the washing and dewatering tank 53. Yes.
  • a blade 58 is integrally provided on the back surface of the stirring blade (pulsator) 52, and a pump chamber 59 is formed on the outer periphery of the blade 58.
  • the pump chamber 59 communicates with the circulation water channels 57a and 57b.
  • the opening part 60 is opened toward the inside of the washing and dewatering tank 53 in the upper part of the circulating water channels 57a and 57b.
  • the watering nozzle 61 is provided in the opening 60 at the upper part of the circulating water channel 57b, and the waste thread filter 62 is provided in the opening 60 at the upper part of the circulating water channel 57a.
  • the motor 63 drives the stirring blade 52 via the V belt 64 and the speed reduction mechanism 65.
  • the water level sensor 66 is connected to the lower part of the water receiving tank 51.
  • the water level sensor 66 detects the water levels a and b in the washing and dewatering tub 53.
  • the output of the water level sensor 66 is input to the control device 67.
  • the stirring blade 52 rotates according to the rotation of the motor 63, and the laundry 73 and the washing liquid in the washing and dewatering tub 53 are stirred.
  • the washing liquid between the blade 58 provided on the stirring blade 52 and the water receiving tank 51 receives centrifugal force by the rotation of the blade 58 and is pushed out to the outside of the bottom of the water receiving tank 51.
  • the washing liquid pushed out of the bottom of the water receiving tank 51 passes through the circulating water channels 57a and 57b, passes through the watering nozzle 61 and the waste thread filter 62, and intermittently enters the washing and dewatering tank 53 in accordance with the rotation of the motor 63. To be sprinkled. As a result, a large amount of washing liquid is sprinkled from above on the laundry in the washing and dewatering tub 53.
  • the washing machine has a water supply valve 72 and a drain valve 74.
  • the washing liquid is sprinkled from the two opposing openings in the washing and dewatering tub. Moreover, since one of the two openings is provided with a lint filter, the washing liquid is sprayed from only one spray nozzle. For this reason, the washing liquid is not evenly sprinkled on the laundry in the washing and dewatering tank. As a result, there has been a problem that the unevenness of the laundry becomes large.
  • the washing liquid is sprinkled over a wide range with respect to the laundry in the washing and dewatering tub from a plurality of discharge ports formed in the upper part of the circulation channel formed in the washing and dewatering tub.
  • the present invention prevents uneven washing and improves foaming properties.
  • a washing machine with improved cleaning performance is provided.
  • the washing machine of the present invention includes a main body, a water tub, a washing and dewatering tub, a pulsator, a blade, a motor, and at least one water channel cover.
  • the water tank is provided inside the main body.
  • the washing / dehydrating tub is rotatably included in the water tub.
  • the pulsator is rotatably disposed at the center inner bottom portion of the washing and dewatering tank, and forms a pump chamber in the water tank at a position below the pulsator.
  • the blades are formed integrally with the pulsator and are disposed in the pump chamber.
  • the motor rotates the pulsator and the washing / dehydrating tub.
  • the at least one water channel cover is provided on the inner wall of the washing / dehydrating tub, and forms a circulation channel for circulating the washing liquid in the pump chamber to the washing / dehydrating tub.
  • Each of the at least one water channel cover includes a side cover part and an upper cover part having a horizontally long shape provided continuously with an upper part of the side cover part.
  • the upper cover portion has a plurality of discharge ports for supplying the washing liquid into the washing / dehydrating tub at the same height in the circumferential direction of the washing / dehydrating tub.
  • FIG. 1 is a schematic vertical sectional view of a washing machine according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the washing and dewatering tank of the washing machine.
  • FIG. 3 is a cross-sectional view of the washing and dewatering tub of the washing machine as seen from the other direction.
  • FIG. 4 is a view of the water channel cover of the washing machine as viewed from the circulation water channel side.
  • FIG. 5 is an enlarged view of a main part of the water channel cover of the washing machine.
  • FIG. 6 is a cutaway view showing the main part of the upper water channel of the circulation water channel of the washing machine.
  • FIG. 7 is a cutaway view showing an upper water channel portion of the circulation water channel of the washing machine.
  • FIG. 8 is a diagram showing a relationship between the discharge range from the circulation channel of the washing machine and the laundry.
  • FIG. 9 is a longitudinal sectional view of a conventional washing machine.
  • FIG. 1 is a schematic vertical sectional view of a washing machine according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the washing and dewatering tank of the washing machine.
  • FIG. 3 is a cross-sectional view of the washing and dewatering tub of the washing machine as seen from the other direction.
  • FIG. 4 is a view of the water channel cover of the washing machine as viewed from the circulation water channel side.
  • FIG. 5 is an enlarged view of a main part of the water channel cover of the washing machine.
  • FIG. 6 is a cutaway view showing the main part of the upper water channel of the circulation water channel of the washing machine.
  • the water tank 3 is supported in a vibration-proof manner by a plurality of suspensions 2 inside the main body 1.
  • the suspension 2 absorbs vibration generated in the water tank 3 during dehydration.
  • a drain port 25 and a drain valve 26 are provided at the bottom of the water tank 3.
  • a washing / dehydrating tank 7 for storing laundry is rotatably arranged in the water tank 3.
  • a large number of dewatering holes 5 are provided on the side wall of the washing and dewatering tub 7.
  • An annular fluid balancer 6 is attached to the upper part of the washing and dewatering tub 7. The fluid balancer 6 is for reducing dehydration vibration.
  • the washing / dehydrating tub 7 is rotatably arranged around the washing / dehydrating shaft 4.
  • the washing / dehydrating shaft 4 is hollow and has a double structure.
  • a pulsator 8 is rotatably disposed on the inner bottom of the washing and dewatering tub 7. The pulsator 8 agitates clothes (laundry).
  • a motor 9 is attached to the bottom of the water tank 3.
  • the motor 9 includes a clutch mechanism and a brake mechanism.
  • the motor 9 brakes the dewatering shaft of the washing / dehydrating shaft 4 during washing.
  • the motor 9 drives the washing shaft of the washing / dehydrating shaft 4 to rotate the pulsator 8 at the same time. Further, the motor 9 releases braking of the dewatering shaft of the washing / dewatering shaft 4 during dewatering.
  • the motor 9 drives the washing / dehydrating shaft 4 and rotates the washing / dehydrating tub 7 at the same time.
  • the drain valve 26 is opened, and the washing liquid or the rinsing liquid in the water tub 3 is drained out of the machine from the drain port 25 through the drain valve 26.
  • the upper frame 21 covers the upper part of the main body 1.
  • the upper frame 21 has an open / close lid 28 that covers the laundry input port 27 so as to be freely opened and closed.
  • the laundry input port 27 is formed at a substantially central portion of the upper portion of the main body 1.
  • An operation display unit 23 is provided on the front surface of the upper frame 21.
  • a control device 24 is provided inside the operation display unit 23.
  • a water supply valve 22 is provided inside the rear portion of the upper frame 21. The water supply valve 22 supplies water into the washing and dewatering tub 7.
  • the control device 24 includes control means (not shown) composed of a microcomputer.
  • the control device 24 is configured to sequentially control a series of steps of washing, rinsing, and dewatering by controlling the motor 9, the water supply valve 22, the drain valve 26, and the like.
  • a bottom member 31 made of synthetic resin is attached to the lower part of the washing and dewatering tub 7.
  • the bottom surface member 31 constitutes a bottom surface portion of the washing and dewatering tub 7.
  • the bottom surface member 31 has a step portion (not shown) that faces the pulsator 8 in proximity to the side surface.
  • a space in which the pulsator 8 is accommodated is formed between the stepped portion and the inner bottom surface of the bottom surface member 31.
  • a pump chamber 19 is formed between the back surface of the pulsator 8 and the bottom surface of the bottom surface member 31.
  • a blade 18 is disposed in the pump chamber 19.
  • the blade 18 is provided in the pulsator 8.
  • the outer peripheral end 8a of the pulsator 8 is located above the stepped portion.
  • a pair of water channel covers 14 are provided on the inner wall of the washing and dewatering tub 7 so as to face each other.
  • a lint filter 32 is disposed at one position rotated 90 ° from the water channel cover 14.
  • a cover 33 is provided at a position opposite to the lint filter 32 that is the other position rotated by 90 ° from the water channel cover 14.
  • the position rotated by 90 ° from the water channel cover / the other position rotated by 90 ° means that the water tank 3 is viewed from above (that is, around the dehydrating shaft 4), and clockwise / It is the position rotated 90 ° counterclockwise.
  • a low water level discharge port 34 is formed in the cover 33 at a position approximately in the middle of the height of the washing and dewatering tub 7.
  • the bottom member 31 has a circular arc shape in which the position where the water channel cover 14 is mounted is substantially the same diameter as the washing and dewatering tub 7. With this shape of the bottom surface member 31, a space communicating from the pump chamber 19 is formed. Further, the bottom surface member 31 is configured such that the circulating water channel 10 formed by attaching the water channel cover 14 and the pump chamber 19 communicate with each other.
  • the surface of the bottom surface member 31 and the surface of the water channel cover 14 are configured to have a shape having almost no step.
  • the water channel cover 14 has a stepped portion 37 at the lower end. The step portion 37 of the water channel cover 14 and the step portion of the bottom surface member 31 are configured to be continuous.
  • the water channel cover 14 has a substantially T-shape.
  • the water channel cover 14 includes a side cover portion 15 and an upper cover portion 16.
  • the side cover 15 is disposed on the side of the inner wall of the washing / dehydrating tub 7 so as to extend in the direction of the rotation axis (vertical) of the washing / dehydrating tub 7.
  • the upper cover portion 16 is disposed at a position below the fluid balancer 6 above the washing / dehydrating tub 7 so as to extend in the circumferential direction of the washing / dehydrating tub 7.
  • the side cover portion 15 is watertightly attached to the side surface of the washing and dewatering tub 7 via a packing member or the like.
  • the upper cover portion 16 is attached to the side surface of the washing and dewatering tub 7 by attaching the rear cover portion 38 (see FIG. 7) from the side surface side of the washing and dewatering tub 7.
  • the circulating water channel 10 includes a side water channel 17 formed in the side cover portion 15 and an upper water channel 20 formed in the upper cover portion 16.
  • the upper water channel 20 includes a first upper water channel 41, a second upper water channel 42, and a third upper water channel 43.
  • the washing liquid in the pump chamber 19 is sent toward the circulation channel 10 of the channel cover 14 by the rotation of the blade 18.
  • the washing liquid is also sent into the lint filter 32 and the cover 33.
  • the upper cover part 16 has a first discharge port 11 at a center part of the upper cover part 16 and above the side cover part 15.
  • the upper cover portion 16 has a second discharge port 12 at the left end portion (as viewed from the rotation center of the washing / dehydrating tub 7) of the upper cover portion 16, and the right end portion (washing / detaching) of the upper cover portion 16.
  • a third discharge port 13 is provided at the rotation center of the water tank 7.
  • the first discharge port 11, the second discharge port 12, and the third discharge port 13 are disposed below the fluid balancer 6 and are disposed at substantially the same height in the circumferential direction of the washing and dewatering tub 7.
  • the water channel cover 14 has a first guide wall 35 and a second guide wall 36 on the circulating water channel 10 side from the upper part of the side cover part 15 to the upper end part side of the upper cover part 16. Have.
  • the first guide wall 35 is disposed with a space between the right inner surface of the water channel cover 14.
  • the first guide wall 35 bends toward the second upper water channel 42 as it goes upward so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the second upper water channel 42. ing.
  • the upper end portion of the first guide wall 35 constitutes the right edge portion of the first discharge port 11.
  • a first restriction wall 44 is disposed at the right end portion of the second upper water passage 42 so as to be substantially parallel to the right inner surface of the water passage cover 14 along the end portion of the second discharge port 12. The first regulating wall 44 allows the washing liquid in the second upper water channel 42 to flow toward the second discharge port 12.
  • the second guide wall 36 is disposed with a space between the left inner surface of the water channel cover 14.
  • the second guide wall 36 bends toward the third upper water channel 43 as it goes upward so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the third upper water channel 43. ing.
  • the upper end portion of the second guide wall 36 constitutes the left edge portion of the first discharge port 11.
  • a second restriction wall 45 is disposed at the left end portion of the third upper water channel 43 so as to extend along the left inner surface of the water channel cover 14 along the end portion of the third discharge port 13. The second restriction wall 45 allows the washing liquid in the third upper water channel 43 to flow toward the third discharge port 13.
  • a space is provided between the first guide wall 35 and the second guide wall 36 so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the first discharge port 11. Yes.
  • a first upper water channel 41 is provided between the first guide wall 35 and the second guide wall 36.
  • the first upper water channel inlet 41 a that is an inlet to the first upper water channel 41 is a second upper water channel inlet 42 a that is an inlet to the second upper water channel 42 and a third upper water channel inlet that is an inlet to the third upper water channel 43. It is narrower than 43a.
  • the first discharge port 11 has a shape in which the lower edge of the opening at the center portion is raised upward, and the opening at the center portion is narrowed.
  • the first discharge port 11 has a shape that protrudes upward as the opening lower edges of both end portions become both ends, and becomes narrower as the openings at both ends become both end sides. With such a configuration, water is sprayed from the first discharge port 11 over a wide area substantially uniformly.
  • the second discharge port 12 has a shape in which the lower edge of the opening bulges upward as it goes to the end, and the opening becomes narrower as it goes to the end. With such a configuration, water is sprayed over a wide range from the second discharge port 12.
  • the third discharge port 13 has a shape in which the lower edge of the opening is raised upward toward the end, and the opening is narrowed toward the end. With such a configuration, water is sprayed over a wide range from the third discharge port 13.
  • the user puts the laundry into the washing and dewatering tub 7 and presses the start button (not shown) of the operation display unit 23. Then, the cloth amount detection means (not shown) detects the cloth amount, and the detergent amount corresponding to the cloth amount is displayed on the operation display unit 23.
  • the water supply valve 22 is operated under the control of the control device 24 to supply water to the water level corresponding to the amount of cloth, the pulsator 8 rotates, and the washing process is started. .
  • the detergent When the washing process is started, the detergent is efficiently dissolved in the supplied water by the rotation of the pulsator 8.
  • the washing liquid in which the detergent is dissolved rises from the pump chamber 19 to the upper water channel 20 from the side water channel 17 of the circulation water channel 10 by the centrifugal force generated by the rotation of the blades 18.
  • the washing liquid is divided into the first upper water channel 41, the second upper water channel 42 and the third upper water channel 43 by the first guide wall 35 and the second guide wall 36. Then, the washing liquid is sprinkled from the first discharge port 11, the second discharge port 12 and the third discharge port 13 toward the laundry in the washing and dewatering tub 7, and the washing solution penetrates into the laundry.
  • the water channel cover 14 includes a first guide wall 35 that guides the washing liquid to the second upper water channel 42 from the upper part of the side cover part 15 to the upper end part side of the upper cover part 16 on the circulating water channel 10 side, and a third upper part. Since it has the 2nd guide wall 36 which leads to the water channel 43, and has the 1st upper water channel 41 between the 1st guide wall 35 and the 2nd guide wall 36, the wash water which flows through circulation water channel 10 is efficiently made into 1st.
  • the first discharge port 11, the second discharge port 12, and the third discharge port 13 can be branched.
  • the shapes of the first guide wall 35 and the second guide wall 36, the cross-sectional areas of the first upper water channel 41, the second upper water channel 42, and the third upper water channel 43, etc., the first discharge port 11, the second discharge port can be made substantially uniform.
  • the first discharge port 11 has a shape in which the lower edge of the opening at the center portion is raised upward and the opening at the center portion is narrowed. If the opening width of the central portion is not narrowed, the washing liquid flows most easily from the central portion, so that the amount of the washing liquid from the central portion increases and the washing liquid cannot be sprayed over a wide range. In the present embodiment, since the opening of the central portion of the first discharge port 11 is narrowed, the concentration of the washing liquid in the central portion is suppressed, and the washing liquid is sprayed over a wide range from the entire first discharge port 11. Can do.
  • the first discharge port 11 has a shape that protrudes upward as the opening lower edge of both end portions becomes both ends, and becomes narrower as the opening of both end portions becomes both end sides.
  • the washing liquid is guided by the first guide wall 35 and the second guide wall 36 and spreads throughout the first discharge port 11, and the first guide wall 35 is Since the flow is blocked by the second guide wall 36, the flow rate of the washing liquid from both ends of the first discharge port 11 is increased.
  • the first discharge port 11 has a shape that protrudes upward as the opening lower edge of both end portions becomes both ends, and narrows as the opening of both end portions becomes both end sides. The flow rate of the washing liquid from both ends of the first discharge port 11 can be suppressed, and the washing liquid can be sprayed from the entire first discharge port 11 over a wide area substantially uniformly.
  • the second discharge port 12 has a shape in which the lower edge of the opening bulges upward as it reaches the end, and the opening narrows as it reaches the end.
  • the third discharge port 13 has a shape in which the lower edge of the opening bulges upward toward the end, and the opening narrows toward the end.
  • the washing water flowing into the second upper water channel 42 is restricted in flow by the first restriction wall 44 and flows toward the second discharge port 12.
  • the opening width of the second discharge port 12 is made the same, the flow rate of the washing water on the first regulating wall 44 (right end) side of the second discharge port 12 increases, and the second upper water channel 42. It becomes easy to flow in the extending direction of the water, resulting in uneven washing water discharge.
  • the second discharge port 12 has a shape such that the lower edge of the opening protrudes upward and becomes narrower as it becomes the right end, so that the right end The amount of washing water discharged from the section side is reduced. For this reason, the wash water discharged from the second discharge port 12 is sprayed evenly over a wide area on the laundry.
  • the washing water that has flowed into the third upper water channel 43 is restricted in flow by the second restriction wall 45 and flows toward the third discharge port 13.
  • the opening width of the third discharge port 13 is the same, the flow rate of the washing water on the second regulating wall 45 (left end) side of the third discharge port 13 increases, and the third upper water channel 43. It becomes easy to flow in the extending direction of the water, resulting in uneven washing water discharge.
  • the third discharge port 13 has such a shape that the lower edge of the opening bulges upward as it becomes the left end, and the opening becomes narrow. The amount of washing water discharged from the section side is reduced. For this reason, the wash water discharged from the 3rd discharge outlet 13 is sprayed uniformly over a wide range with respect to the laundry.
  • FIG. 8 is a diagram showing a relationship between the discharge range from the circulation channel of the washing machine and the laundry in the embodiment of the present invention.
  • the water sprayed from the first discharge port 11, the second discharge port 12, and the third discharge port 13 of one circulation water channel 10 occupies about half the area in the washing and dewatering tub 7. For this reason, by sprinkling water from the pair of circulation channels 10, the washing liquid can be sprinkled from above to almost the entire laundry 30 in the washing and dewatering tub 7, and the washing liquid can permeate the laundry. Can do. Thereby, washing unevenness can be prevented and washing performance can be improved.
  • the angle between the center position of the first discharge port 11 and the center position of the second discharge port 12 and the angle between the center position of the first discharge port 11 and the center position of the third discharge port 13 are 35 ° to It is preferable to set in the range of 45 °.
  • the angle between the center position of the first discharge port 11 and the center position of the second discharge port 12 / the third discharge port 13 is as viewed from above the water tank 3 (that is, around the dehydrating shaft 4). This is the angle (absolute value of the angle) rotated from the center position of the first discharge port 11 counterclockwise / clockwise to the center position of the second discharge port 12 / third discharge port 13.
  • water can be uniformly distributed throughout the washing and dewatering tub 7.
  • water can be sprayed throughout the washing and dewatering tub 7 by setting the angle within the above range.
  • the rinsing water is widely sprayed from above the laundry as in the washing process, so that the rinsing can be promoted and the rinsing performance can be improved.
  • FIG. 7 is a cutaway view showing the upper water channel 20 of the circulation water channel 10 in the embodiment of the present invention.
  • the upper cover portion 16 has inclined surfaces 39 at both ends on the front side. Due to the inclined surfaces 39 at both ends of the upper cover portion 16, both ends of the upper cover portion 16 are continuous with the inner peripheral surface of the washing and dewatering tub 7 with a smooth inclination. Therefore, in the washing process and the rinsing process, the laundry is less likely to be caught at both ends of the upper cover portion 16, and the washing unevenness due to the laundry being caught and difficult to rotate can be suppressed.
  • the upper cover portion 16 has a raised portion 40 on the inner surface side of the washing and dewatering tub 7 at the opening peripheral edge of the first discharge port 11, the second discharge port 12, and the third discharge port 13.
  • the three discharge ports of the first discharge port 11, the second discharge port 12, and the third discharge port 13 are formed in the water channel cover 14.
  • the second discharge port 12 and the third discharge port 13 may be provided.
  • either the second discharge port 12 or the third discharge port 13 may be omitted.
  • a total of four discharge ports may be formed in the upper cover portion 16, two on the left and right sides with respect to the side cover portion 15.
  • the water channel cover 14 has a plurality of discharge ports in the circumferential direction of the washing and dewatering tub 7 at the upper portion, and the shape and number of the discharge ports are not limited to the embodiment.
  • the water channel cover 14 that forms the water circulation channel 10 in a watertight manner has the side cover portion 15 in which the inner wall portion of the washing and dewatering tub 7 has a vertically long shape, and the top portion has a horizontally long shape.
  • a certain upper cover portion 16 is integrally formed in a substantially T shape. When viewed from the center of the washing and dewatering tank 7, the upper cover portion 16 has a first discharge port 11 at the center, a second discharge port 12 on the left side of the first discharge port 11, and a third discharge port 13 on the right side.
  • the washing liquid is sprinkled from the first discharge port 11, the second discharge port 12, and the third discharge port 13 into the washing and dewatering tub 7 via the circulation water channel 10, thereby washing.
  • the laundry in the washing and dewatering tub 7 can be stirred while sprinkling the washing liquid uniformly from above. As a result, washing unevenness and rinsing unevenness can be prevented, and washing performance and rinsing performance can be improved.
  • the washing machine of the first invention includes a main body, a water tub, a washing and dewatering tub, a pulsator, a blade, a motor, and at least one water channel cover.
  • the water tank is provided inside the main body.
  • the washing / dehydrating tub is rotatably included in the water tub.
  • the pulsator is rotatably disposed at the center inner bottom portion of the washing and dewatering tank, and forms a pump chamber in the water tank at a position below the pulsator.
  • the blades are formed integrally with the pulsator and are disposed in the pump chamber.
  • the motor rotates the pulsator and the washing / dehydrating tub.
  • the at least one water channel cover is provided on the inner wall of the washing / dehydrating tub, and forms a circulation channel for circulating the washing liquid in the pump chamber to the washing / dehydrating tub.
  • Each of the at least one water channel cover includes a side cover part and an upper cover part having a horizontally long shape provided continuously with an upper part of the side cover part.
  • the upper cover portion has a plurality of discharge ports for supplying the washing liquid into the washing / dehydrating tub at substantially the same height in the circumferential direction of the washing / dehydrating tub.
  • the upper cover portion has a plurality of discharge ports at both ends in the circumferential direction of the washing and dewatering tub, and each of the plurality of discharge ports is an upper portion.
  • the opening becomes narrower.
  • the upper cover portion includes a first discharge port at the center of the upper cover portion, a second discharge port on the left side of the first discharge port, and a first discharge port.
  • Each of the plurality of discharge ports including the third discharge port is provided on the right side.
  • the second discharge port and the third discharge port are provided in the range of 35 ° to 45 ° to the left and right with respect to the first discharge port. With this configuration, the washing liquid can be sprinkled over a wider range.
  • At least one water channel cover is provided at two opposing positions of the washing and dewatering tub. With this configuration, the washing liquid can be sprayed over a wide range.
  • a sixth invention is the water supply valve for supplying water to the water tank according to any one of the first to fifth inventions, and a control means for controlling operations of the motor and the water supply valve to control each step of washing, rinsing and dehydration.
  • the water tank is supported in a vibration-proof manner inside the main body. With this configuration, washing can be performed automatically and vibration can be reduced.
  • the washing machine according to the present invention improves washing performance by preventing washing unevenness by stirring the washing liquid evenly over the laundry in the washing and dewatering tank while sprinkling the washing liquid uniformly from above. Can be applied to drum-type and other washing machine applications.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Provided is a washing machine that comprises: a washing/spin-drying tub (7) that is accommodated inside a water tank so as to be able to freely rotate; a pulsator (8) that is arranged on a central inner base part of the washing/spin-drying tub (7) so as to be able to freely rotate; and a water channel cover (14) that is provided on an inner wall of the washing/spin-drying tub (7). A pump chamber (19) is formed at a position below the pulsator (8) inside the water tank. A circulating water channel that circulates a washing liquid inside the pump chamber (19) to the washing/spin-drying tub (7) is formed by the water channel cover (14). The water channel cover (14) includes a side surface cover part (15) and an upper cover part (16) that is connected to an upper part of the side surface cover part (15) and has a horizontally elongated shape. The upper cover part (16) has disposed therein, at substantially the same height in a circumferential direction of the washing/spin-drying tub (7), a plurality of discharge openings (11, 12, 13) for supplying the washing liquid into the washing/spin-drying tub (7).

Description

洗濯機Washing machine
　本発明は、洗濯機に関するものであり、より詳細には、洗い、すすぎ、脱水行程を行う洗濯機に関するものである。 The present invention relates to a washing machine, and more particularly to a washing machine that performs washing, rinsing, and dehydration processes.
　従来提案されているこの種の洗濯機は、洗浄性能向上のために、洗濯兼脱水槽に設置した循環水路を利用して洗濯液を循環し、洗濯兼脱水槽上部より洗濯液を衣類に掛けながら洗浄する（例えば、特許文献１参照）。 This type of washing machine, which has been proposed in the past, circulates the washing liquid using a circulation channel installed in the washing / dehydrating tub and applies the washing liquid to the clothing from the top of the washing / dehydrating tub. (For example, refer patent document 1).
　図９は、特許文献１に記載された従来の洗濯機の縦断面図である。 FIG. 9 is a longitudinal sectional view of a conventional washing machine described in Patent Document 1.
　図９において、洗濯兼脱水槽５３は、本体５５内にサスペンション５４によって防振支持されている。複数の循環水路カバー５６が、洗濯兼脱水槽５３の内面に、取着され、複数の循環水路カバー５６と洗濯兼脱水槽５３との間に独立した複数の循環水路５７ａ、５７ｂが形成されている。 In FIG. 9, the washing and dewatering tub 53 is supported in a vibration-proof manner by a suspension 54 in the main body 55. A plurality of circulation water channel covers 56 are attached to the inner surface of the washing and dewatering tank 53, and a plurality of independent circulation water channels 57a and 57b are formed between the plurality of circulation water channel covers 56 and the washing and dewatering tank 53. Yes.
　また、羽根５８が、撹拌翼（パルセータ）５２の裏面に一体に設けられ、羽根５８の外周にポンプ室５９が形成されている。ポンプ室５９は循環水路５７ａ、５７ｂに連通している。そして、開口部６０が、循環水路５７ａ、５７ｂの上部に洗濯兼脱水槽５３の内部に向けて開口している。散水ノズル６１が、循環水路５７ｂの上部の開口部６０に設けられ、糸くずフィルタ６２が、循環水路５７ａの上部の開口部６０に設けられている。 Further, a blade 58 is integrally provided on the back surface of the stirring blade (pulsator) 52, and a pump chamber 59 is formed on the outer periphery of the blade 58. The pump chamber 59 communicates with the circulation water channels 57a and 57b. And the opening part 60 is opened toward the inside of the washing and dewatering tank 53 in the upper part of the circulating water channels 57a and 57b. The watering nozzle 61 is provided in the opening 60 at the upper part of the circulating water channel 57b, and the waste thread filter 62 is provided in the opening 60 at the upper part of the circulating water channel 57a.
　モータ６３は、Ｖベルト６４および減速機構６５を介して、撹拌翼５２を駆動する。水位センサ６６は、水受槽５１の下部に接続されている。水位センサ６６は、洗濯兼脱水槽５３内の水位ａ、ｂを検知する。水位センサ６６の出力は、制御装置６７に入力するようになっている。 The motor 63 drives the stirring blade 52 via the V belt 64 and the speed reduction mechanism 65. The water level sensor 66 is connected to the lower part of the water receiving tank 51. The water level sensor 66 detects the water levels a and b in the washing and dewatering tub 53. The output of the water level sensor 66 is input to the control device 67.
　以上の構成にて、洗い行程では、モータ６３の回転に応じて撹拌翼５２が回転し、洗濯兼脱水槽５３内の洗濯物７３と洗濯液が撹拌される。一方、撹拌翼５２に設けた羽根５８と水受槽５１との間の洗濯液は、羽根５８の回転により遠心力を受けて、水受槽５１底部の外側に押し出される。水受槽５１底部の外側に押し出された洗濯液は、循環水路５７ａ、５７ｂを通り、散水ノズル６１および糸くずフィルタ６２を通り、洗濯兼脱水槽５３内に、モータ６３の回転に応じて間欠的に、散水される。これにより、多量の洗濯液が、洗濯兼脱水槽５３内の洗濯物に対して、上方より散水される。図９において、洗濯機は、給水弁７２と、排水弁７４とを有する。 With the above configuration, in the washing process, the stirring blade 52 rotates according to the rotation of the motor 63, and the laundry 73 and the washing liquid in the washing and dewatering tub 53 are stirred. On the other hand, the washing liquid between the blade 58 provided on the stirring blade 52 and the water receiving tank 51 receives centrifugal force by the rotation of the blade 58 and is pushed out to the outside of the bottom of the water receiving tank 51. The washing liquid pushed out of the bottom of the water receiving tank 51 passes through the circulating water channels 57a and 57b, passes through the watering nozzle 61 and the waste thread filter 62, and intermittently enters the washing and dewatering tank 53 in accordance with the rotation of the motor 63. To be sprinkled. As a result, a large amount of washing liquid is sprinkled from above on the laundry in the washing and dewatering tub 53. In FIG. 9, the washing machine has a water supply valve 72 and a drain valve 74.
　しかしながら、従来の構成では、洗濯液は、洗濯兼脱水槽内に、対向する２ヶ所の開口部から、散水される。しかも２ヶ所の開口部のうち１か所は糸くずフィルタを設けているので、洗濯液は、実質１ヶ所の散水ノズルからのみ散水される。このため、洗濯液は、洗濯兼脱水槽内の洗濯物にムラなく均一には振り掛けられない。この結果、洗濯物の洗いむらが大きくなるという問題があった。 However, in the conventional configuration, the washing liquid is sprinkled from the two opposing openings in the washing and dewatering tub. Moreover, since one of the two openings is provided with a lint filter, the washing liquid is sprayed from only one spray nozzle. For this reason, the washing liquid is not evenly sprinkled on the laundry in the washing and dewatering tank. As a result, there has been a problem that the unevenness of the laundry becomes large.
特開平７－３１７８５号公報Japanese Unexamined Patent Publication No. 7-31785
　本発明は、洗濯兼脱水槽内に形成された循環水路の上部に形成された複数の吐出口から、洗濯兼脱水槽内の洗濯物に対して、広範囲に、洗濯液を散水する。これにより、本発明は、洗いむらを防止し、泡立て性を向上させる。その結果、洗浄性能が向上した洗濯機が提供される。 In the present invention, the washing liquid is sprinkled over a wide range with respect to the laundry in the washing and dewatering tub from a plurality of discharge ports formed in the upper part of the circulation channel formed in the washing and dewatering tub. As a result, the present invention prevents uneven washing and improves foaming properties. As a result, a washing machine with improved cleaning performance is provided.
　本発明の洗濯機は、本体と、水槽と、洗濯兼脱水槽と、パルセータと、羽根と、モータと、少なくとも１つの水路カバーと、を備える。水槽は、本体内部に設けられている。洗濯兼脱水槽は、水槽内に回転自在に内包されている。パルセータは、洗濯兼脱水槽の中央内底部に回転自在に配設されており、水槽内であってパルセータの下方の位置にポンプ室を形成する。羽根は、パルセータと一体的に形成されており、ポンプ室に配設されている。モータは、パルセータおよび洗濯兼脱水槽を回転駆動する。少なくとも１つの水路カバーは、洗濯兼脱水槽の内壁に設けられており、ポンプ室内の洗濯液を洗濯兼脱水槽に循環する循環水路を形成する。少なくとも１つの水路カバーのそれぞれは、側面カバー部と、側面カバー部の上部に連設した横長形状である上部カバー部と、を含む。上部カバー部は、洗濯兼脱水槽の円周方向に同一高さに、洗濯兼脱水槽内に洗濯液を供給する複数の吐出口を有する。 The washing machine of the present invention includes a main body, a water tub, a washing and dewatering tub, a pulsator, a blade, a motor, and at least one water channel cover. The water tank is provided inside the main body. The washing / dehydrating tub is rotatably included in the water tub. The pulsator is rotatably disposed at the center inner bottom portion of the washing and dewatering tank, and forms a pump chamber in the water tank at a position below the pulsator. The blades are formed integrally with the pulsator and are disposed in the pump chamber. The motor rotates the pulsator and the washing / dehydrating tub. The at least one water channel cover is provided on the inner wall of the washing / dehydrating tub, and forms a circulation channel for circulating the washing liquid in the pump chamber to the washing / dehydrating tub. Each of the at least one water channel cover includes a side cover part and an upper cover part having a horizontally long shape provided continuously with an upper part of the side cover part. The upper cover portion has a plurality of discharge ports for supplying the washing liquid into the washing / dehydrating tub at the same height in the circumferential direction of the washing / dehydrating tub.
図１は、本発明の第１の実施の形態における洗濯機の縦断面摸式図である。FIG. 1 is a schematic vertical sectional view of a washing machine according to the first embodiment of the present invention. 図２は、同洗濯機の洗濯兼脱水槽の断面図である。FIG. 2 is a cross-sectional view of the washing and dewatering tank of the washing machine. 図３は、同洗濯機の洗濯兼脱水槽を他の方向から見た断面図である。FIG. 3 is a cross-sectional view of the washing and dewatering tub of the washing machine as seen from the other direction. 図４は、同洗濯機の水路カバーを循環水路側から見た図である。FIG. 4 is a view of the water channel cover of the washing machine as viewed from the circulation water channel side. 図５は、同洗濯機の水路カバーの要部拡大図である。FIG. 5 is an enlarged view of a main part of the water channel cover of the washing machine. 図６は、同洗濯機の循環水路の上部水路の要部を示す切り欠き図である。FIG. 6 is a cutaway view showing the main part of the upper water channel of the circulation water channel of the washing machine. 図７は、同洗濯機の循環水路の上部水路部を示す切り欠き図である。FIG. 7 is a cutaway view showing an upper water channel portion of the circulation water channel of the washing machine. 図８は、同洗濯機の循環水路からの吐出範囲と洗濯物との関係を示す図である。FIG. 8 is a diagram showing a relationship between the discharge range from the circulation channel of the washing machine and the laundry. 図９は、従来の洗濯機の縦断面図である。FIG. 9 is a longitudinal sectional view of a conventional washing machine.
　以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
　（第１の実施の形態）
　図１は、本発明の第１の実施の形態における洗濯機の縦断面摸式図である。図２は、同洗濯機の洗濯兼脱水槽の断面図である。図３は、同洗濯機の洗濯兼脱水槽を他の方向から見た断面図である。図４は、同洗濯機の水路カバーを循環水路側から見た図である。図５は、同洗濯機の水路カバーの要部拡大図である。図６は、同洗濯機の循環水路の上部水路の要部を示す切り欠き図である。 (First embodiment)
FIG. 1 is a schematic vertical sectional view of a washing machine according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view of the washing and dewatering tank of the washing machine. FIG. 3 is a cross-sectional view of the washing and dewatering tub of the washing machine as seen from the other direction. FIG. 4 is a view of the water channel cover of the washing machine as viewed from the circulation water channel side. FIG. 5 is an enlarged view of a main part of the water channel cover of the washing machine. FIG. 6 is a cutaway view showing the main part of the upper water channel of the circulation water channel of the washing machine.
　図１において、水槽３は、本体１の内部に、複数のサスペンション２によって防振支持されている。サスペンション２が、脱水時に水槽３に生じる振動を、吸収する。水槽３の底部には、排水口２５と排水弁２６とが、設けられている。 1, the water tank 3 is supported in a vibration-proof manner by a plurality of suspensions 2 inside the main body 1. The suspension 2 absorbs vibration generated in the water tank 3 during dehydration. A drain port 25 and a drain valve 26 are provided at the bottom of the water tank 3.
　水槽３の内部には、洗濯物を収納する洗濯兼脱水槽７が、回転可能に配設されている。洗濯兼脱水槽７の側壁には、多数の脱水孔５が、設けられている。洗濯兼脱水槽７の上部には、環状の流体バランサ６が、取り付けられている。流体バランサ６は、脱水振動低減用である。 In the water tank 3, a washing / dehydrating tank 7 for storing laundry is rotatably arranged. A large number of dewatering holes 5 are provided on the side wall of the washing and dewatering tub 7. An annular fluid balancer 6 is attached to the upper part of the washing and dewatering tub 7. The fluid balancer 6 is for reducing dehydration vibration.
　洗濯兼脱水槽７は、洗濯・脱水軸４を中心に、回転可能に配設されている。洗濯・脱水軸４は、中空で２重構造である。洗濯兼脱水槽７の内底部には、パルセータ８が、回転自在に配設されている。パルセータ８は、衣類（洗濯物）を撹拌する。 The washing / dehydrating tub 7 is rotatably arranged around the washing / dehydrating shaft 4. The washing / dehydrating shaft 4 is hollow and has a double structure. A pulsator 8 is rotatably disposed on the inner bottom of the washing and dewatering tub 7. The pulsator 8 agitates clothes (laundry).
　水槽３の底部には、モータ９が、取り付けられている。モータ９は、クラッチ機構およびブレーキ機構を、内蔵している。モータ９は、洗濯時には、洗濯・脱水軸４の脱水軸を制動させる。モータ９は、洗濯時には、同時に、洗濯・脱水軸４の洗濯軸を駆動して、パルセータ８を回転駆動する。また、モータ９は、脱水時には、洗濯・脱水軸４の脱水軸の制動を解除する。モータ９は、脱水時には、同時に、洗濯・脱水軸４を駆動して、洗濯兼脱水槽７を回転駆動する。脱水時には、排水弁２６が開放され、水槽３内の洗濯液、または、すすぎ液が排水口２５から排水弁２６を介して機外に排水される。 A motor 9 is attached to the bottom of the water tank 3. The motor 9 includes a clutch mechanism and a brake mechanism. The motor 9 brakes the dewatering shaft of the washing / dehydrating shaft 4 during washing. At the time of washing, the motor 9 drives the washing shaft of the washing / dehydrating shaft 4 to rotate the pulsator 8 at the same time. Further, the motor 9 releases braking of the dewatering shaft of the washing / dewatering shaft 4 during dewatering. At the time of dehydration, the motor 9 drives the washing / dehydrating shaft 4 and rotates the washing / dehydrating tub 7 at the same time. At the time of dehydration, the drain valve 26 is opened, and the washing liquid or the rinsing liquid in the water tub 3 is drained out of the machine from the drain port 25 through the drain valve 26.
　上部枠体２１は、本体１の上部を覆う。上部枠体２１は、洗濯物投入口２７を覆う開閉蓋２８を、開閉自在に有する。洗濯物投入口２７は、本体１の上部の略中央部に形成されている。上部枠体２１の前面部には、操作表示部２３が、設けられている。操作表示部２３の内方には、制御装置２４が、設けられている。上部枠体２１の後部内方には、給水弁２２が、設けられている。給水弁２２は、洗濯兼脱水槽７内に給水する。 The upper frame 21 covers the upper part of the main body 1. The upper frame 21 has an open / close lid 28 that covers the laundry input port 27 so as to be freely opened and closed. The laundry input port 27 is formed at a substantially central portion of the upper portion of the main body 1. An operation display unit 23 is provided on the front surface of the upper frame 21. A control device 24 is provided inside the operation display unit 23. A water supply valve 22 is provided inside the rear portion of the upper frame 21. The water supply valve 22 supplies water into the washing and dewatering tub 7.
　制御装置２４は、マイクロコンピュータからなる制御手段（図示せず）を具備する。制御装置２４は、モータ９、給水弁２２、排水弁２６などを制御することにより、洗い、すすぎ、脱水の一連の行程を逐次制御するように構成されている。 The control device 24 includes control means (not shown) composed of a microcomputer. The control device 24 is configured to sequentially control a series of steps of washing, rinsing, and dewatering by controlling the motor 9, the water supply valve 22, the drain valve 26, and the like.
　洗濯兼脱水槽７の下部には、合成樹脂製の底面部材３１が、装着されている。底面部材３１は、洗濯兼脱水槽７の底面部を構成する。底面部材３１は、側面にパルセータ８と近接して対向する段部（図示せず）を有する。段部と底面部材３１の内底面との間に、パルセータ８が収容される空間が、形成されている。この空間には、パルセータ８裏面と底面部材３１内底面との間に、ポンプ室１９が、形成される。ポンプ室１９には、羽根１８が、配置される。羽根１８は、パルセータ８に設けられている。パルセータ８の外周端部８ａは、段部の上方に位置している。 A bottom member 31 made of synthetic resin is attached to the lower part of the washing and dewatering tub 7. The bottom surface member 31 constitutes a bottom surface portion of the washing and dewatering tub 7. The bottom surface member 31 has a step portion (not shown) that faces the pulsator 8 in proximity to the side surface. A space in which the pulsator 8 is accommodated is formed between the stepped portion and the inner bottom surface of the bottom surface member 31. In this space, a pump chamber 19 is formed between the back surface of the pulsator 8 and the bottom surface of the bottom surface member 31. A blade 18 is disposed in the pump chamber 19. The blade 18 is provided in the pulsator 8. The outer peripheral end 8a of the pulsator 8 is located above the stepped portion.
　図２～図６に示すように、洗濯兼脱水槽７の内壁に、相対向して、一対の水路カバー１４が、設けられている。水路カバー１４から９０°回転した一方の位置に、糸屑フィルタ３２が、配設されている。また、水路カバー１４から９０°回転した他方の位置である糸屑フィルタ３２と相対向する位置に、カバー３３が、設けられている。ここで、水路カバー１４から９０°回転した位置／９０°回転した他方の位置とは、水槽３を上から見て（すなわち、脱水軸４のまわりに）、水路カバー１４の位置から右まわり／左まわりに９０°回転した位置のことである。カバー３３には、洗濯兼脱水槽７の高さの略中間の位置に、低水位吐出口３４が、形成されている。 As shown in FIGS. 2 to 6, a pair of water channel covers 14 are provided on the inner wall of the washing and dewatering tub 7 so as to face each other. A lint filter 32 is disposed at one position rotated 90 ° from the water channel cover 14. In addition, a cover 33 is provided at a position opposite to the lint filter 32 that is the other position rotated by 90 ° from the water channel cover 14. Here, the position rotated by 90 ° from the water channel cover / the other position rotated by 90 ° means that the water tank 3 is viewed from above (that is, around the dehydrating shaft 4), and clockwise / It is the position rotated 90 ° counterclockwise. A low water level discharge port 34 is formed in the cover 33 at a position approximately in the middle of the height of the washing and dewatering tub 7.
　底面部材３１は、水路カバー１４が装着される位置が、洗濯兼脱水槽７と略同径の円弧状の形状を有している。底面部材３１のこの形状により、ポンプ室１９から連通する空間が形成される。また、底面部材３１は、水路カバー１４を装着することにより形成される循環水路１０とポンプ室１９とが連通するように構成されている。底面部材３１の表面と水路カバー１４の表面は、ほぼ段差のない形状となるように構成されている。水路カバー１４は、下端部に、段部３７を有する。水路カバー１４の段部３７と底面部材３１の段部とは、連続するよう構成されている。 The bottom member 31 has a circular arc shape in which the position where the water channel cover 14 is mounted is substantially the same diameter as the washing and dewatering tub 7. With this shape of the bottom surface member 31, a space communicating from the pump chamber 19 is formed. Further, the bottom surface member 31 is configured such that the circulating water channel 10 formed by attaching the water channel cover 14 and the pump chamber 19 communicate with each other. The surface of the bottom surface member 31 and the surface of the water channel cover 14 are configured to have a shape having almost no step. The water channel cover 14 has a stepped portion 37 at the lower end. The step portion 37 of the water channel cover 14 and the step portion of the bottom surface member 31 are configured to be continuous.
　水路カバー１４は、略Ｔ字状の形状を有する。水路カバー１４は、側面カバー部１５と、上部カバー部１６とを含む。側面カバー部１５は、洗濯兼脱水槽７の内壁部側面に、洗濯兼脱水槽７の回転軸（上下）方向に延びるように、配設される。上部カバー部１６は、洗濯兼脱水槽７の上部の流体バランサ６の下方位置に、洗濯兼脱水槽７の円周方向に延びるように、配設される。水路カバー１４を洗濯兼脱水槽７の側面に装着することにより、循環水路１０が、形成される。具体的には、側面カバー部１５は、洗濯兼脱水槽７の側面にパッキング部材等を介して水密的に装着される。上部カバー部１６は、洗濯兼脱水槽７の側面側より後カバー部３８（図７参照）を装着することにより、洗濯兼脱水槽７の側面に装着される。循環水路１０は、側面カバー部１５内に形成される側面水路１７と、上部カバー部１６内に形成される上部水路２０により構成される。上部水路２０は、第１上部水路４１と第２上部水路４２と第３上部水路４３とにより構成される。 The water channel cover 14 has a substantially T-shape. The water channel cover 14 includes a side cover portion 15 and an upper cover portion 16. The side cover 15 is disposed on the side of the inner wall of the washing / dehydrating tub 7 so as to extend in the direction of the rotation axis (vertical) of the washing / dehydrating tub 7. The upper cover portion 16 is disposed at a position below the fluid balancer 6 above the washing / dehydrating tub 7 so as to extend in the circumferential direction of the washing / dehydrating tub 7. By attaching the water channel cover 14 to the side surface of the washing and dewatering tub 7, the circulating water channel 10 is formed. Specifically, the side cover portion 15 is watertightly attached to the side surface of the washing and dewatering tub 7 via a packing member or the like. The upper cover portion 16 is attached to the side surface of the washing and dewatering tub 7 by attaching the rear cover portion 38 (see FIG. 7) from the side surface side of the washing and dewatering tub 7. The circulating water channel 10 includes a side water channel 17 formed in the side cover portion 15 and an upper water channel 20 formed in the upper cover portion 16. The upper water channel 20 includes a first upper water channel 41, a second upper water channel 42, and a third upper water channel 43.
　パルセータ８を回転させると、羽根１８の回転により、ポンプ室１９内の洗濯液が、水路カバー１４の循環水路１０に向かって、送られる。また、糸屑フィルタ３２およびカバー３３内にも、洗濯液が、送られる。 When the pulsator 8 is rotated, the washing liquid in the pump chamber 19 is sent toward the circulation channel 10 of the channel cover 14 by the rotation of the blade 18. The washing liquid is also sent into the lint filter 32 and the cover 33.
　上部カバー部１６は、上部カバー部１６の中央部であって側面カバー部１５の上方の位置に、第１吐出口１１を有する。上部カバー部１６は、上部カバー部１６の左側端部（洗濯兼脱水槽７の回転中心から見て）に、第２吐出口１２を有し、上部カバー部１６の右側端部（洗濯兼脱水槽７の回転中心から見て）に、第３吐出口１３を有する。第１吐出口１１、第２吐出口１２、および第３吐出口１３は、流体バランサ６の下方に配置され、洗濯兼脱水槽７の円周方向に略同じ高さに配置されている。 The upper cover part 16 has a first discharge port 11 at a center part of the upper cover part 16 and above the side cover part 15. The upper cover portion 16 has a second discharge port 12 at the left end portion (as viewed from the rotation center of the washing / dehydrating tub 7) of the upper cover portion 16, and the right end portion (washing / detaching) of the upper cover portion 16. A third discharge port 13 is provided at the rotation center of the water tank 7. The first discharge port 11, the second discharge port 12, and the third discharge port 13 are disposed below the fluid balancer 6 and are disposed at substantially the same height in the circumferential direction of the washing and dewatering tub 7.
　図４に示すように、水路カバー１４は、循環水路１０側に、側面カバー部１５の上部から上部カバー部１６の上端部側に亘って、第１ガイド壁３５と第２ガイド壁３６とを有する。 As shown in FIG. 4, the water channel cover 14 has a first guide wall 35 and a second guide wall 36 on the circulating water channel 10 side from the upper part of the side cover part 15 to the upper end part side of the upper cover part 16. Have.
　第１ガイド壁３５は、水路カバー１４の右内側面との間に間隔を有して配置されている。第１ガイド壁３５は、側面水路１７を上部水路２０に向かって上昇する洗濯液を、第２上部水路４２に向かって案内するように、上方になるに従って第２上部水路４２に向かって湾曲している。第１ガイド壁３５の上端部は、第１吐出口１１の右側の口縁部を構成している。第２上部水路４２の右端部には、第２吐出口１２の端部に沿うように、水路カバー１４の右内側面と略並行に第１規制壁４４が配置されている。第１規制壁４４は、第２上部水路４２内の洗濯液が第２吐出口１２に向かって流れるようにしている。 The first guide wall 35 is disposed with a space between the right inner surface of the water channel cover 14. The first guide wall 35 bends toward the second upper water channel 42 as it goes upward so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the second upper water channel 42. ing. The upper end portion of the first guide wall 35 constitutes the right edge portion of the first discharge port 11. A first restriction wall 44 is disposed at the right end portion of the second upper water passage 42 so as to be substantially parallel to the right inner surface of the water passage cover 14 along the end portion of the second discharge port 12. The first regulating wall 44 allows the washing liquid in the second upper water channel 42 to flow toward the second discharge port 12.
　第２ガイド壁３６は、水路カバー１４の左内側面との間に間隔を有して配置されている。第２ガイド壁３６は、側面水路１７を上部水路２０に向かって上昇する洗濯液を、第３上部水路４３に向かって案内するように、上方になるに従って第３上部水路４３に向かって湾曲している。第２ガイド壁３６の上端部は、第１吐出口１１の左側の口縁部を構成している。第３上部水路４３の左端部には、第３吐出口１３の端部に沿うように、水路カバー１４の左内側面と略並行に第２規制壁４５が配置されている。第２規制壁４５は、第３上部水路４３内の洗濯液が第３吐出口１３に向かって流れるようにしている。 The second guide wall 36 is disposed with a space between the left inner surface of the water channel cover 14. The second guide wall 36 bends toward the third upper water channel 43 as it goes upward so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the third upper water channel 43. ing. The upper end portion of the second guide wall 36 constitutes the left edge portion of the first discharge port 11. A second restriction wall 45 is disposed at the left end portion of the third upper water channel 43 so as to extend along the left inner surface of the water channel cover 14 along the end portion of the third discharge port 13. The second restriction wall 45 allows the washing liquid in the third upper water channel 43 to flow toward the third discharge port 13.
　第１ガイド壁３５と第２ガイド壁３６との間には、側面水路１７を上部水路２０に向かって上昇する洗濯液を第１吐出口１１に向かって案内するように、間隔が空けられている。第１ガイド壁３５と第２ガイド壁３６との間に、第１上部水路４１を有する。第１上部水路４１への入口である第１上部水路入口４１ａは、第２上部水路４２への入口である第２上部水路入口４２ａと第３上部水路４３への入口である第３上部水路入口４３ａよりも狭い。この構成により、略同一の洗濯液の流量が、第１吐出口１１と、第２吐出口１２と、第３吐出口１３とに向かって流れる。 A space is provided between the first guide wall 35 and the second guide wall 36 so as to guide the washing liquid rising in the side water channel 17 toward the upper water channel 20 toward the first discharge port 11. Yes. A first upper water channel 41 is provided between the first guide wall 35 and the second guide wall 36. The first upper water channel inlet 41 a that is an inlet to the first upper water channel 41 is a second upper water channel inlet 42 a that is an inlet to the second upper water channel 42 and a third upper water channel inlet that is an inlet to the third upper water channel 43. It is narrower than 43a. With this configuration, substantially the same flow rate of the washing liquid flows toward the first discharge port 11, the second discharge port 12, and the third discharge port 13.
　第１吐出口１１は、中央部分の開口下縁が上方に向けて隆起した形状になっており、中央部分の開口が狭くなっている。また、第１吐出口１１は、両端部分の開口下縁が両端になるに従って上方に向けて隆起し、両端の開口が両端側になるに従って狭くなる形状を有している。このような構成により、第１吐出口１１から広範囲に略均一に散水される。 The first discharge port 11 has a shape in which the lower edge of the opening at the center portion is raised upward, and the opening at the center portion is narrowed. The first discharge port 11 has a shape that protrudes upward as the opening lower edges of both end portions become both ends, and becomes narrower as the openings at both ends become both end sides. With such a configuration, water is sprayed from the first discharge port 11 over a wide area substantially uniformly.
　第２吐出口１２は、端部になるに従って開口下縁を上方に向けて隆起し、端部になるに従って開口が狭くなる形状を有している。このような構成により、第２吐出口１２から広範囲に散水される。 The second discharge port 12 has a shape in which the lower edge of the opening bulges upward as it goes to the end, and the opening becomes narrower as it goes to the end. With such a configuration, water is sprayed over a wide range from the second discharge port 12.
　第３吐出口１３は、端部になるに従って開口下縁を上方に向けて隆起し、端部になるに従って開口が狭くなる形状を有している。このような構成により、第３吐出口１３から広範囲に散水される。 The third discharge port 13 has a shape in which the lower edge of the opening is raised upward toward the end, and the opening is narrowed toward the end. With such a configuration, water is sprayed over a wide range from the third discharge port 13.
　以上のように構成した洗濯機において、以下、その動作、作用を説明する。 The operation and action of the washing machine configured as described above will be described below.
　洗い行程をスタートするには、ユーザーが、洗濯兼脱水槽７内に洗濯物を投入し、操作表示部２３のスタートボタン（図示せず）を押す。すると、布量検知手段（図示せず）が、布量を検知して、操作表示部２３に布量に応じた洗剤量が、表示される。ユーザーが、表示された洗剤量を投入すると、制御装置２４の制御により、給水弁２２が動作して、布量に応じた水位まで給水され、パルセータ８が回転して、洗い工程が開始される。 To start the washing process, the user puts the laundry into the washing and dewatering tub 7 and presses the start button (not shown) of the operation display unit 23. Then, the cloth amount detection means (not shown) detects the cloth amount, and the detergent amount corresponding to the cloth amount is displayed on the operation display unit 23. When the user inputs the displayed amount of detergent, the water supply valve 22 is operated under the control of the control device 24 to supply water to the water level corresponding to the amount of cloth, the pulsator 8 rotates, and the washing process is started. .
　洗い工程が開始されると、パルセータ８の回転により、給水された水に効率よく洗剤が溶解される。洗剤が溶解された洗濯液は、羽根１８の回転による遠心力により、ポンプ室１９から循環水路１０の側面水路１７から上部水路２０へ上昇する。そして、洗濯液は、第１ガイド壁３５と第２ガイド壁３６とにより、第１上部水路４１、第２上部水路４２および第３上部水路４３に分流される。そして、洗濯液は、第１吐出口１１、第２吐出口１２および第３吐出口１３から洗濯兼脱水槽７内の洗濯物に向かって散水され、洗濯液が洗濯物に浸透する。 When the washing process is started, the detergent is efficiently dissolved in the supplied water by the rotation of the pulsator 8. The washing liquid in which the detergent is dissolved rises from the pump chamber 19 to the upper water channel 20 from the side water channel 17 of the circulation water channel 10 by the centrifugal force generated by the rotation of the blades 18. The washing liquid is divided into the first upper water channel 41, the second upper water channel 42 and the third upper water channel 43 by the first guide wall 35 and the second guide wall 36. Then, the washing liquid is sprinkled from the first discharge port 11, the second discharge port 12 and the third discharge port 13 toward the laundry in the washing and dewatering tub 7, and the washing solution penetrates into the laundry.
　水路カバー１４は、循環水路１０側に、側面カバー部１５の上部から上部カバー部１６の上端部側に亘って、洗濯液を第２上部水路４２に導く第１ガイド壁３５と、第３上部水路４３に導く第２ガイド壁３６とを有し、第１ガイド壁３５と第２ガイド壁３６との間に第１上部水路４１を有するので、循環水路１０を流れる洗濯水を、効率よく第１吐出口１１と、第２吐出口１２と、第３吐出口１３とに分岐させることができる。 The water channel cover 14 includes a first guide wall 35 that guides the washing liquid to the second upper water channel 42 from the upper part of the side cover part 15 to the upper end part side of the upper cover part 16 on the circulating water channel 10 side, and a third upper part. Since it has the 2nd guide wall 36 which leads to the water channel 43, and has the 1st upper water channel 41 between the 1st guide wall 35 and the 2nd guide wall 36, the wash water which flows through circulation water channel 10 is efficiently made into 1st. The first discharge port 11, the second discharge port 12, and the third discharge port 13 can be branched.
　第１ガイド壁３５と第２ガイド壁３６の形状、第１上部水路４１と第２上部水路４２と第３上部水路４３の断面積等を調整することによって、第１吐出口１１、第２吐出口１２、第３吐出口１３へ流れる洗濯水の流量を略均等にすることができる。 By adjusting the shapes of the first guide wall 35 and the second guide wall 36, the cross-sectional areas of the first upper water channel 41, the second upper water channel 42, and the third upper water channel 43, etc., the first discharge port 11, the second discharge port The flow rate of the washing water flowing to the outlet 12 and the third discharge port 13 can be made substantially uniform.
　図４に示すように、第１吐出口１１は、中央部分の開口下縁が上方に向けて隆起し、中央部分の開口が狭くなる形状を有している。中央部分の開口幅を狭めていない場合には、洗濯液が中央部分から最も流れ易いために、中央部分からの洗濯液の量が増大し、洗濯液を広範囲に散水することができない。本実施の形態では、第１吐出口１１の中央部分の開口を狭めているので、洗濯液が中央部分に集中するのを抑制し、洗濯液を第１吐出口１１全体から広範囲に散水させることができる。 As shown in FIG. 4, the first discharge port 11 has a shape in which the lower edge of the opening at the center portion is raised upward and the opening at the center portion is narrowed. If the opening width of the central portion is not narrowed, the washing liquid flows most easily from the central portion, so that the amount of the washing liquid from the central portion increases and the washing liquid cannot be sprayed over a wide range. In the present embodiment, since the opening of the central portion of the first discharge port 11 is narrowed, the concentration of the washing liquid in the central portion is suppressed, and the washing liquid is sprayed over a wide range from the entire first discharge port 11. Can do.
　また、第１吐出口１１は、両端部分の開口下縁が両端になるに従って上方に向けて隆起し、両端部分の開口が両端側になるに従って狭くなる形状を有している。両端部分の開口を狭めていない場合には、洗濯液は、第１ガイド壁３５と第２ガイド壁３６に案内されて、第１吐出口１１全体に広がり、両端部分で第１ガイド壁３５と第２ガイド壁３６に流れを遮られるため、第１吐出口１１両端部分からの洗濯液の流量が増大する。 Also, the first discharge port 11 has a shape that protrudes upward as the opening lower edge of both end portions becomes both ends, and becomes narrower as the opening of both end portions becomes both end sides. When the openings at both end portions are not narrowed, the washing liquid is guided by the first guide wall 35 and the second guide wall 36 and spreads throughout the first discharge port 11, and the first guide wall 35 is Since the flow is blocked by the second guide wall 36, the flow rate of the washing liquid from both ends of the first discharge port 11 is increased.
　本実施の形態では、第１吐出口１１は、両端部分の開口下縁が両端になるに従って上方に向けて隆起し、両端部分の開口が両端側になるに従って狭くなる形状を有しているので、第１吐出口１１の両端部分からの洗濯液の流量が抑制でき、洗濯液を第１吐出口１１全体から略均一に広範囲に散水させることができる。 In the present embodiment, the first discharge port 11 has a shape that protrudes upward as the opening lower edge of both end portions becomes both ends, and narrows as the opening of both end portions becomes both end sides. The flow rate of the washing liquid from both ends of the first discharge port 11 can be suppressed, and the washing liquid can be sprayed from the entire first discharge port 11 over a wide area substantially uniformly.
　第２吐出口１２は、端部になるに従って開口下縁が上方に向けて隆起し、端部になるに従って開口が狭くなる形状を有する。第３吐出口１３は、端部になるに従って開口下縁が上方に向けて隆起し、端部になるに従って開口が狭くなる形状を有する。 The second discharge port 12 has a shape in which the lower edge of the opening bulges upward as it reaches the end, and the opening narrows as it reaches the end. The third discharge port 13 has a shape in which the lower edge of the opening bulges upward toward the end, and the opening narrows toward the end.
　第２上部水路４２に流入した洗濯水は、第１規制壁４４により流れが規制され第２吐出口１２に向かって流れる。このとき、第２吐出口１２の開口幅を同じにした場合、第２吐出口１２の第１規制壁４４（右側端部）側の洗濯水の流量が多くなり、また、第２上部水路４２の延設方向に流れやすくなり、不均一な洗濯水の吐出となる。これに対し、本実施の形態では、第２吐出口１２が、右側端部になるに従って開口下縁が上方に向けて隆起し、開口が狭くなるような形状を有しているので、右側端部側から吐出する洗濯水の量が絞られる。このため、第２吐出口１２から吐出される洗濯水が、洗濯物に対し広範囲に均等に散水される。 The washing water flowing into the second upper water channel 42 is restricted in flow by the first restriction wall 44 and flows toward the second discharge port 12. At this time, if the opening width of the second discharge port 12 is made the same, the flow rate of the washing water on the first regulating wall 44 (right end) side of the second discharge port 12 increases, and the second upper water channel 42. It becomes easy to flow in the extending direction of the water, resulting in uneven washing water discharge. On the other hand, in the present embodiment, the second discharge port 12 has a shape such that the lower edge of the opening protrudes upward and becomes narrower as it becomes the right end, so that the right end The amount of washing water discharged from the section side is reduced. For this reason, the wash water discharged from the second discharge port 12 is sprayed evenly over a wide area on the laundry.
　第３上部水路４３に流入した洗濯水は、第２規制壁４５により流れが規制され第３吐出口１３に向かって流れる。このとき、第３吐出口１３の開口幅を同じにした場合、第３吐出口１３の第２規制壁４５（左側端部）側の洗濯水の流量が多くなり、また、第３上部水路４３の延設方向に流れやすくなり、不均一な洗濯水の吐出となる。これに対し、本実施の形態では、第３吐出口１３が、左側端部になるに従って開口下縁が上方に向けて隆起し、開口が狭くなるような形状を有しているので、左側端部側から吐出する洗濯水の量が絞られる。このため、第３吐出口１３から吐出される洗濯水が、洗濯物に対し広範囲に均等に散水される。 The washing water that has flowed into the third upper water channel 43 is restricted in flow by the second restriction wall 45 and flows toward the third discharge port 13. At this time, if the opening width of the third discharge port 13 is the same, the flow rate of the washing water on the second regulating wall 45 (left end) side of the third discharge port 13 increases, and the third upper water channel 43. It becomes easy to flow in the extending direction of the water, resulting in uneven washing water discharge. On the other hand, in the present embodiment, the third discharge port 13 has such a shape that the lower edge of the opening bulges upward as it becomes the left end, and the opening becomes narrow. The amount of washing water discharged from the section side is reduced. For this reason, the wash water discharged from the 3rd discharge outlet 13 is sprayed uniformly over a wide range with respect to the laundry.
　図８は、本発明の実施の形態における洗濯機の循環水路からの吐出範囲と洗濯物との関係を示す図である。 FIG. 8 is a diagram showing a relationship between the discharge range from the circulation channel of the washing machine and the laundry in the embodiment of the present invention.
　図８に示すように、一方の循環水路１０の第１吐出口１１、第２吐出口１２、および第３吐出口１３からの散水は、洗濯兼脱水槽７内の約半分の面積を占める。このため、一対の循環水路１０からの散水により、洗濯兼脱水槽７内の洗濯物３０のほぼ全体に上方より、洗濯液を、散水することができ、洗濯物に洗濯液を、浸透させることができる。これにより、洗いむらを防止して、洗浄性能を向上することができる。 As shown in FIG. 8, the water sprayed from the first discharge port 11, the second discharge port 12, and the third discharge port 13 of one circulation water channel 10 occupies about half the area in the washing and dewatering tub 7. For this reason, by sprinkling water from the pair of circulation channels 10, the washing liquid can be sprinkled from above to almost the entire laundry 30 in the washing and dewatering tub 7, and the washing liquid can permeate the laundry. Can do. Thereby, washing unevenness can be prevented and washing performance can be improved.
　実験の結果、第１吐出口１１の中心位置と第２吐出口１２の中心位置との角度、第１吐出口１１の中心位置と第３吐出口１３の中心位置との角度は、３５°～４５°の範囲に設定することが好ましい。ここで、第１吐出口１１の中心位置と第２吐出口１２／第３吐出口１３の中心位置との角度とは、水槽３を上から見て（すなわち、脱水軸４のまわりに）、第１吐出口１１の中心位置から左まわり／右まわりに第２吐出口１２／第３吐出口１３の中心位置まで回転した角度（角度の絶対値）のことである。この構成により、洗濯兼脱水槽７内全体にむらなく散水することができる。循環水路の洗濯液の流速、吐出口の形状等により異なるが、角度を上記範囲に設定することにより、洗濯兼脱水槽７内全体に散水することができる。 As a result of the experiment, the angle between the center position of the first discharge port 11 and the center position of the second discharge port 12 and the angle between the center position of the first discharge port 11 and the center position of the third discharge port 13 are 35 ° to It is preferable to set in the range of 45 °. Here, the angle between the center position of the first discharge port 11 and the center position of the second discharge port 12 / the third discharge port 13 is as viewed from above the water tank 3 (that is, around the dehydrating shaft 4). This is the angle (absolute value of the angle) rotated from the center position of the first discharge port 11 counterclockwise / clockwise to the center position of the second discharge port 12 / third discharge port 13. With this configuration, water can be uniformly distributed throughout the washing and dewatering tub 7. Although depending on the flow rate of the washing liquid in the circulation channel, the shape of the discharge port, and the like, water can be sprayed throughout the washing and dewatering tub 7 by setting the angle within the above range.
　なお、すすぎ行程においても、すすぎ水を洗い行程の場合と同じように、洗濯物の上方から幅広く散水するので、すすぎを促進してすすぎ性能を向上することができる。 In the rinsing process, the rinsing water is widely sprayed from above the laundry as in the washing process, so that the rinsing can be promoted and the rinsing performance can be improved.
　図７は、本発明の実施の形態における循環水路１０の上部水路２０を示す切り欠き図である。 FIG. 7 is a cutaway view showing the upper water channel 20 of the circulation water channel 10 in the embodiment of the present invention.
　図７に示すように、上部カバー部１６は、前面側の両端部に、傾斜面３９を有する。上部カバー部１６の両端部の傾斜面３９により、上部カバー部１６の両端部は、洗濯兼脱水槽７の内周面に滑らかな傾斜で連続する。従って、洗い工程、すすぎ工程において、洗濯物が上部カバー部１６の両端部で引っかかりにくくなり、洗濯物が引っかかり、回転しにくくなることによる洗いむら、すすぎむらを抑制することができる。 As shown in FIG. 7, the upper cover portion 16 has inclined surfaces 39 at both ends on the front side. Due to the inclined surfaces 39 at both ends of the upper cover portion 16, both ends of the upper cover portion 16 are continuous with the inner peripheral surface of the washing and dewatering tub 7 with a smooth inclination. Therefore, in the washing process and the rinsing process, the laundry is less likely to be caught at both ends of the upper cover portion 16, and the washing unevenness due to the laundry being caught and difficult to rotate can be suppressed.
　また、上部カバー部１６は、第１吐出口１１、第２吐出口１２、および第３吐出口１３の開口周縁に、洗濯兼脱水槽７内面側に隆起部４０を有する。隆起部４０を有することにより、第１吐出口１１、第２吐出口１２、および第３吐出口１３に洗濯物が入り込んだり、引っかかったりしにくくなり、洗濯物が引っかかることによる洗いむら、すすぎむらを抑制することができる。 Further, the upper cover portion 16 has a raised portion 40 on the inner surface side of the washing and dewatering tub 7 at the opening peripheral edge of the first discharge port 11, the second discharge port 12, and the third discharge port 13. By having the raised portion 40, it becomes difficult for the laundry to enter or get caught in the first discharge port 11, the second discharge port 12, and the third discharge port 13, and washing or rinsing unevenness due to the laundry getting caught Can be suppressed.
　なお、上述した本実施の形態では、水路カバー１４に、第１吐出口１１と第２吐出口１２と第３吐出口１３の３つの吐出口を形成したが、例えば、第１吐出口１１をなくして、第２吐出口１２と第３吐出口１３のみとしてもよい。また、第２吐出口１２あるいは第３吐出口１３のいずれか一方をなくしてもよい。あるいは、上部カバー部１６に側面カバー部１５に対して左右にそれぞれ２つ、合計４つの吐出口を形成してもよい。 In the present embodiment described above, the three discharge ports of the first discharge port 11, the second discharge port 12, and the third discharge port 13 are formed in the water channel cover 14. Alternatively, only the second discharge port 12 and the third discharge port 13 may be provided. Further, either the second discharge port 12 or the third discharge port 13 may be omitted. Alternatively, a total of four discharge ports may be formed in the upper cover portion 16, two on the left and right sides with respect to the side cover portion 15.
　本発明は、水路カバー１４が上部に洗濯兼脱水槽７の円周方向に複数の吐出口を有するものであり、吐出口の形状、数等は実施の形態に限定されるものではない。 In the present invention, the water channel cover 14 has a plurality of discharge ports in the circumferential direction of the washing and dewatering tub 7 at the upper portion, and the shape and number of the discharge ports are not limited to the embodiment.
　以上のように、本実施の形態においては、循環水路１０を水密的に形成する水路カバー１４は、洗濯兼脱水槽７の内壁部が縦長形状である側面カバー部１５と、上部が横長形状である上部カバー部１６とで略Ｔ字形状に一体形成されている。上部カバー部１６は、洗濯兼脱水槽７の中心から見た場合、中央部に第１吐出口１１を、第１吐出口１１の左側に第２吐出口１２を、右側に第３吐出口１３を有する。パルセータ８の回転により、洗濯液が、循環水路１０を経由して、第１吐出口１１、第２吐出口１２、第３吐出口１３から洗濯兼脱水槽７内に散水されることにより、洗い行程およびすすぎ行程において、洗濯兼脱水槽７内の洗濯物に対して、上方から満遍なく洗濯液を散水しながら撹拌することができる。その結果、洗いむらおよびすすぎむらを防止して、洗浄性能およびすすぎ性能を向上することができる。 As described above, in the present embodiment, the water channel cover 14 that forms the water circulation channel 10 in a watertight manner has the side cover portion 15 in which the inner wall portion of the washing and dewatering tub 7 has a vertically long shape, and the top portion has a horizontally long shape. A certain upper cover portion 16 is integrally formed in a substantially T shape. When viewed from the center of the washing and dewatering tank 7, the upper cover portion 16 has a first discharge port 11 at the center, a second discharge port 12 on the left side of the first discharge port 11, and a third discharge port 13 on the right side. Have As the pulsator 8 rotates, the washing liquid is sprinkled from the first discharge port 11, the second discharge port 12, and the third discharge port 13 into the washing and dewatering tub 7 via the circulation water channel 10, thereby washing. In the process and the rinsing process, the laundry in the washing and dewatering tub 7 can be stirred while sprinkling the washing liquid uniformly from above. As a result, washing unevenness and rinsing unevenness can be prevented, and washing performance and rinsing performance can be improved.
　以上に説明したように、第１の発明の洗濯機は、本体と、水槽と、洗濯兼脱水槽と、パルセータと、羽根と、モータと、少なくとも１つの水路カバーと、を備える。水槽は、本体内部に設けられている。洗濯兼脱水槽は、水槽内に回転自在に内包されている。パルセータは、洗濯兼脱水槽の中央内底部に回転自在に配設されており、水槽内であってパルセータの下方の位置にポンプ室を形成する。羽根は、パルセータと一体的に形成されており、ポンプ室に配設されている。モータは、パルセータおよび洗濯兼脱水槽を回転駆動する。少なくとも１つの水路カバーは、洗濯兼脱水槽の内壁に設けられており、ポンプ室内の洗濯液を洗濯兼脱水槽に循環する循環水路を形成する。少なくとも１つの水路カバーのそれぞれは、側面カバー部と、側面カバー部の上部に連設した横長形状である上部カバー部と、を含む。上部カバー部は、洗濯兼脱水槽の円周方向に略同一高さに、洗濯兼脱水槽内に洗濯液を供給する複数の吐出口を有する。この構成により、洗い行程において、洗濯兼脱水槽内の洗濯物に対して、上方から満遍なく洗濯液を散水しながら撹拌することができるので、洗いむらを防止して洗浄性能を向上することができる。 As described above, the washing machine of the first invention includes a main body, a water tub, a washing and dewatering tub, a pulsator, a blade, a motor, and at least one water channel cover. The water tank is provided inside the main body. The washing / dehydrating tub is rotatably included in the water tub. The pulsator is rotatably disposed at the center inner bottom portion of the washing and dewatering tank, and forms a pump chamber in the water tank at a position below the pulsator. The blades are formed integrally with the pulsator and are disposed in the pump chamber. The motor rotates the pulsator and the washing / dehydrating tub. The at least one water channel cover is provided on the inner wall of the washing / dehydrating tub, and forms a circulation channel for circulating the washing liquid in the pump chamber to the washing / dehydrating tub. Each of the at least one water channel cover includes a side cover part and an upper cover part having a horizontally long shape provided continuously with an upper part of the side cover part. The upper cover portion has a plurality of discharge ports for supplying the washing liquid into the washing / dehydrating tub at substantially the same height in the circumferential direction of the washing / dehydrating tub. With this configuration, in the washing process, the washing liquid in the washing and dewatering tub can be stirred while sprinkling the washing liquid uniformly from above, so that washing unevenness can be prevented and washing performance can be improved. .
　第２の発明は、第１の発明において、上部カバー部は、洗濯兼脱水槽の円周方向の両側端部に、複数の吐出口のそれぞれを有し、複数の吐出口のそれぞれは、上部カバー部の中央側から離間するに従って開口が狭い。この構成により、洗濯液を広範囲に散水することができる。 According to a second invention, in the first invention, the upper cover portion has a plurality of discharge ports at both ends in the circumferential direction of the washing and dewatering tub, and each of the plurality of discharge ports is an upper portion. As the distance from the center side of the cover portion increases, the opening becomes narrower. With this configuration, the washing liquid can be sprayed over a wide range.
　第３の発明は、第１または第２の発明において、上部カバー部は、上部カバー部の中央部に第１吐出口と、第１吐出口の左側に第２吐出口と、第１吐出口の右側に第３吐出口と、を含む複数の吐出口のそれぞれを有する。この構成により、洗濯液を広範囲に散水して、洗濯物に洗濯液を浸透させることができ、洗いむらを防止して洗浄性能を向上することができる。 According to a third invention, in the first or second invention, the upper cover portion includes a first discharge port at the center of the upper cover portion, a second discharge port on the left side of the first discharge port, and a first discharge port. Each of the plurality of discharge ports including the third discharge port is provided on the right side. With this configuration, it is possible to spray the washing liquid over a wide range and allow the washing liquid to penetrate into the laundry, thereby preventing washing unevenness and improving the washing performance.
　第４の発明は、第３の発明において、第２吐出口および第３吐出口は、第１吐出口に対してそれぞれ左右に３５°～４５°の範囲に設けられている。この構成により、より広範囲に洗濯液を散水することができる。 In a fourth aspect based on the third aspect, the second discharge port and the third discharge port are provided in the range of 35 ° to 45 ° to the left and right with respect to the first discharge port. With this configuration, the washing liquid can be sprinkled over a wider range.
　第５の発明は、第１から第４のいずれかの発明において、少なくとも１つの水路カバーは、洗濯兼脱水槽の相対向する位置に２つ設けられている。この構成により、広範囲に洗濯液を散水することができる。 According to a fifth invention, in any one of the first to fourth inventions, at least one water channel cover is provided at two opposing positions of the washing and dewatering tub. With this configuration, the washing liquid can be sprayed over a wide range.
　第６の発明は、第１から第５のいずれかの発明において、水槽に給水する給水弁と、モータ及び給水弁の動作を制御し、洗い、すすぎ及び脱水の各行程を制御する制御手段と、を備え、水槽は、本体内部に防振支持されている。この構成により、自動で洗濯を行うことができ、また、振動を低減できる。 A sixth invention is the water supply valve for supplying water to the water tank according to any one of the first to fifth inventions, and a control means for controlling operations of the motor and the water supply valve to control each step of washing, rinsing and dehydration. The water tank is supported in a vibration-proof manner inside the main body. With this configuration, washing can be performed automatically and vibration can be reduced.
　以上のように、本発明にかかる洗濯機は、洗濯兼脱水槽内の洗濯物に対して、上方から満遍なく洗濯液を散水しながら撹拌することにより、洗いむらを防止して洗浄性能を向上させることが可能となるので、ドラム式や他の洗濯機の用途に適用できる。 As described above, the washing machine according to the present invention improves washing performance by preventing washing unevenness by stirring the washing liquid evenly over the laundry in the washing and dewatering tank while sprinkling the washing liquid uniformly from above. Can be applied to drum-type and other washing machine applications.
　１　本体
　２　サスペンション
　３　水槽
　７　洗濯兼脱水槽
　８　パルセータ
　９　モータ
　１０　循環水路
　１１　第１吐出口
　１２　第２吐出口
　１３　第３吐出口
　１４　水路カバー
　１５　側面カバー部
　１６　上部カバー部
　１７　側面水路
　１８　羽根
　１９　ポンプ室
　２０　上部水路
　２２　給水弁
　２４　制御装置
　３１　底面部材
　３５　第１ガイド壁
　３６　第２ガイド壁 DESCRIPTION OF SYMBOLS 1 Main body 2 Suspension 3 Water tank 7 Washing and dewatering tank 8 Pulsator 9 Motor 10 Circulating water channel 11 1st discharge port 12 2nd discharge port 13 3rd discharge port 14 Water channel cover 15 Side surface cover part 16 Upper cover part 17 Side surface water channel 18 Blade 19 Pump chamber 20 Upper water channel 22 Water supply valve 24 Control device 31 Bottom member 35 First guide wall 36 Second guide wall

Claims (6)

  1. 　本体と、
    　前記本体内部に設けられた水槽と、
    　前記水槽内に回転自在に内包された洗濯兼脱水槽と、
    　パルセータであって、前記洗濯兼脱水槽の中央内底部に回転自在に配設され、前記水槽内であって前記パルセータの下方の位置にポンプ室を形成するパルセータと、
    　前記パルセータと一体的に形成され、前記ポンプ室に配設される羽根と、
    　前記パルセータおよび前記洗濯兼脱水槽を回転駆動するモータと、
    　前記洗濯兼脱水槽の内壁に設けられ、前記ポンプ室内の洗濯液を前記洗濯兼脱水槽に循環する循環水路を形成する少なくとも１つの水路カバーと、を備え、
    　前記少なくとも１つの水路カバーのそれぞれは、側面カバー部と、前記側面カバー部の上部に連設した横長形状である上部カバー部と、を含み、
    　前記上部カバー部は、前記洗濯兼脱水槽の円周方向に同一高さに、前記洗濯兼脱水槽内に洗濯液を供給する複数の吐出口を有する、
    洗濯機。     The body,
    A water tank provided inside the main body;
    A washing and dewatering tub contained rotatably in the water tub;
    A pulsator, which is rotatably disposed at the center inner bottom of the washing and dewatering tank, and forms a pump chamber in the water tank at a position below the pulsator;
    A blade formed integrally with the pulsator and disposed in the pump chamber;
    A motor that rotationally drives the pulsator and the washing and dewatering tub;
    Provided on the inner wall of the washing and dewatering tub, and comprising at least one water channel cover that forms a circulation channel for circulating the washing liquid in the pump chamber to the washing and dewatering tub,
    Each of the at least one water channel cover includes a side cover part, and an upper cover part having a horizontally long shape provided continuously with an upper part of the side cover part,
    The upper cover portion has a plurality of discharge ports for supplying a washing liquid into the washing / dehydrating tub at the same height in the circumferential direction of the washing / dehydrating tub,
    Washing machine.
  2. 　前記上部カバー部は、前記洗濯兼脱水槽の円周方向の両側端部に、前記複数の吐出口のそれぞれを有し、
    　前記複数の吐出口のそれぞれは、前記上部カバー部の中央側から離間するに従って開口が狭い、
    請求項１に記載の洗濯機。     The upper cover portion has each of the plurality of discharge ports at both ends in the circumferential direction of the washing and dewatering tub,
    Each of the plurality of discharge ports has a narrow opening as the distance from the center side of the upper cover portion increases.
    The washing machine according to claim 1.
  3. 　前記上部カバー部は、前記上部カバー部の中央部に第１吐出口と、前記第１吐出口の左側に第２吐出口と、前記第１吐出口の右側に第３吐出口と、を含む前記複数の吐出口のそれぞれを有する、
    請求項１または２に記載の洗濯機。     The upper cover portion includes a first discharge port at a central portion of the upper cover portion, a second discharge port on the left side of the first discharge port, and a third discharge port on the right side of the first discharge port. Each of the plurality of discharge ports;
    The washing machine according to claim 1 or 2.
  4. 　前記第２吐出口および前記第３吐出口は、前記第１吐出口に対してそれぞれ左右に３５°～４５°の範囲に設けられている、
    請求項３に記載の洗濯機。     The second discharge port and the third discharge port are respectively provided in a range of 35 ° to 45 ° to the left and right with respect to the first discharge port.
    The washing machine according to claim 3.
  5. 　前記少なくとも１つの水路カバーは、前記洗濯兼脱水槽の相対向する位置に２つ設けられている、
    請求項１～４のいずれか１項に記載の洗濯機。     The at least one water channel cover is provided at two opposing positions of the washing and dewatering tub,
    The washing machine according to any one of claims 1 to 4.
  6. 　前記水槽に給水する給水弁と、
    　前記モータ及び前記給水弁の動作を制御し、洗い、すすぎ及び脱水の各行程を制御する制御手段と、を備え、
    　前記水槽は、前記本体内部に防振支持されている、
    請求項１～５のいずれか１項に記載の洗濯機。     A water supply valve for supplying water to the water tank;
    Control means for controlling the operation of the motor and the water supply valve, and controlling the steps of washing, rinsing and dewatering,
    The water tank is supported in a vibration-proof manner inside the main body,
    The washing machine according to any one of claims 1 to 5.
PCT/JP2015/004341 2014-11-26 2015-08-28 Washing machine WO2016084280A1 (en)

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JP6937465B2 (en) * 2018-01-31 2021-09-22 パナソニックＩｐマネジメント株式会社 Washing machine

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JPH01146584A (en) * 1987-12-02 1989-06-08 Matsushita Electric Ind Co Ltd Operation of washing machine
JPH0956985A (en) * 1995-08-21 1997-03-04 Hitachi Ltd Fully automatic washing machine
JP2002119796A (en) * 2000-10-19 2002-04-23 Hitachi Ltd Washing machine
JP2011139815A (en) * 2010-01-08 2011-07-21 Panasonic Corp Washing machine

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JPH01146584A (en) * 1987-12-02 1989-06-08 Matsushita Electric Ind Co Ltd Operation of washing machine
JPH0956985A (en) * 1995-08-21 1997-03-04 Hitachi Ltd Fully automatic washing machine
JP2002119796A (en) * 2000-10-19 2002-04-23 Hitachi Ltd Washing machine
JP2011139815A (en) * 2010-01-08 2011-07-21 Panasonic Corp Washing machine

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PH12017500090A1 (en) 2017-05-22
CN106661808A (en) 2017-05-10
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SG11201700781PA (en) 2017-02-27
JP6311125B2 (en) 2018-04-18

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