JP2019201755A - Water sprinkler and washing machine having the same - Google Patents

Abstract

To provide a washing machine having improved performance for cleaning oil contamination such as sebum soil even with a lowered water level, capable of preventing washing unevenness, without cost.SOLUTION: A washing machine comprises a plurality of discharge ports from which washing water is sprayed into a washing tub. The discharge ports include at least a first discharge port from which washing water is sprayed into the central part of the washing tub, and a second discharge port from which washing water is sprayed into the edge part of the washing tub.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a watering device for spraying water into a water tank, and a washing machine using the same.

  In order to increase the detergency of sebum stains (oil stains), high concentration cleaning with increased detergent concentration is effective.

  Conventionally, in order to increase the detergent concentration, there are methods such as increasing the mechanical force and extending the operation time in addition to the method of increasing the amount of detergent or decreasing the amount of water.

  For example, Patent Document 1 discloses that even when the amount of laundry is large, foam generated with a high-concentration detergent solution is spread over the entire laundry to improve the cleaning effect without washing unevenness.

JP 2006-202525 A

  In order to improve the detergency of sebum dirt without running costs, it is necessary to lower the water level without changing the amount of detergent. However, as the amount of laundry increases, a difference in water content occurs between the upper and lower portions of the laundry, which leads to cloth movement and deterioration of washing unevenness.

  Therefore, an object of the present invention is to provide a watering device that can improve the cleaning ability of oil stains such as sebum stains and prevent deterioration of washing unevenness even if the water level is lowered without incurring running costs. is there.

  In order to solve the above problems, the watering device of the present invention has a plurality of outlets through which washing water is sprayed in the washing tub, and the plurality of outlets sprays the washing water at least in the central portion of the rinsing tub. It is set as the structure which has a 1st discharge outlet and the 2nd discharge part which spreads wash water to a washing tub edge part.

  The washing machine of the present invention has an outer tub, a washing tub provided in the outer tub, and a watering device for sprinkling washing water in the washing tub, and the watering device has a plurality of discharge ports. The plurality of discharge ports include at least a first discharge port that sprays washing water to the central portion of the washing tub and a second discharge portion that sprays washing water to the end portion of the washing tub.

  ADVANTAGE OF THE INVENTION According to this invention, even if it falls a water level, it can improve the detergency of oil stains, such as sebum stain, and can provide the watering apparatus which can prevent a washing nonuniformity deterioration, without running cost.

It is a figure which shows the structure of the washing machine which concerns on embodiment of this invention. It is a front view of the watering apparatus assembled | attached to the outer tank cover. It is a figure which shows the structure which removed the watering apparatus from the outer tank cover. It is sectional drawing which shows the relationship between a washing and dewatering tank and a watering apparatus. It is side surface sectional drawing which shows the flow of the washing water from a watering apparatus into the washing and dehydration tank. It is a figure which shows an example of the water supply opening of a watering apparatus. It is a figure which shows the other example of the water supply port of a watering apparatus. It is other side surface sectional drawing which shows the flow of the washing water from a watering apparatus into the washing and dehydration tank. It is a figure which shows an example which provided the wall to the water supply port of the watering apparatus.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

  The washing machine which concerns on embodiment of this invention attaches the watering apparatus mentioned later, and demonstrates the water spraying apparatus of this embodiment in detail after demonstrating the whole structure of a washing machine below.

<Washing dryer>
FIG. 1 is a configuration explanatory diagram of a washing machine (washing / drying machine) according to an embodiment of the present invention.

  As shown in FIG. 1, the washing / drying machine 1 is a vertical washing machine (vertical washing / drying machine) in which a rotation axis of a washing / dehydrating tub 8 (inner tub) that is a washing tub is substantially vertical. An upper surface cover 3 is provided on the upper portion of the housing 2 of the washing / drying machine 1, and an outer lid 4 is provided on the upper surface cover 3. The outer lid 4 is opened rearward to open the opening 5 so that clothes and the like (laundry) can be taken in and out of the washing and dewatering tub 8.

  A water supply hose connection port 6 from the water tap and a water absorption hose connection port (not shown) for sucking the remaining hot water in the bath are provided on the back side (rear side) of the top cover 3.

  The washing / drying machine 1 includes a washing / dehydrating tub 8, an outer tub 9, a driving device 10, a detergent feeding device 11 for feeding a detergent / finishing agent, a water supply unit 7, a drying duct 12, and the like. .

  The washing and dewatering tub 8 has a bottomed cylindrical shape and includes a body plate 8a formed of a stainless steel plate or the like. A large number of through holes 8a1 (only part of which are shown) are formed in the body plate 8a for water flow and air flow. The washing and dewatering tub 8 includes a rotary blade 8b on the inner bottom surface.

  The outer tub 9 has a bottomed cylindrical shape, includes a washing and dewatering tub 8 coaxially, and includes an outer tub cover 9a on the upper portion thereof. The user of the washing / drying machine 1 can put the laundry in and out of the washing and dehydrating tub 8 through the opening 5 by opening the lid member 9b of the outer lid 4 and the outer tub cover 9a.

  The driving device 10 is disposed at the center outside the bottom surface of the outer tub 9. The driving device 10 includes a motor 10a and a clutch mechanism 10b, and a rotating shaft 10c of the driving device 10 is configured to pass through the outer tub 9 and to be coupled to the washing / dehydrating tub 8 and the rotary blade 8b. . The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to at least one of the washing and dewatering tub 8 and the rotary blade 8b.

  The water supply unit 7 is provided on the back side of the top cover 3. The water supply unit 7 supplies tap water from the water supply hose connection port 6 to a detergent charging device 11 and a water cooling / dehumidifying mechanism (not shown). Further, the water supply unit 7 can inject tap water and bath water from the water supply hose connection port 6 into the outer tank 9 through the water supply hose 13 from between the outer tub 9 and the washing / dehydrating tub 8. . Further, the water supply unit 7 can inject tap water from the water supply hose connection port 6 into the upper portion of the washing and dewatering tank 8 through the cleaning hose 14.

  The drop portion 15 provided on the bottom surface of the outer tub 9 communicates with the lower communication pipe 16. The lower communication pipe 16 is connected through a drain valve 17 so as to communicate with the washing water drain path 18.

  The washing water drainage channel 18 is connected to a drainage hose (not shown) that sends out drainage to the outside of the machine.

Incidentally, by closing the drain valve 17, it becomes possible to store wash water and rinsing water in the outer tub 9. Further, by opening the drain valve 17, the water (washing water, rinsing water) in the outer tub 9 can be drained outside the washing / drying machine 1 through the washing water drainage channel 18.

  The drying duct 12 is installed in the vertical direction inside the back surface of the housing 2, and the lower part of the duct is connected to the drop portion 15 of the outer tub 9 by a rubber bellows tube 19. A water-cooled dehumidifying mechanism (not shown) is built in the drying duct 12, and the water supply unit 7 supplies cooling water (tap water) to the water-cooled dehumidifying mechanism. The cooling water flows down the wall surface of the drying duct 12 (a metal plate made of stainless steel or the like), enters the drop-in portion 15, and is discharged out of the machine through the lower communication pipe 16 and the washing water drainage path 18.

  The outlet of the drying duct 12 is connected to the inlet of the fan 20, and the outlet of the fan 20 is connected to the heater 21. The outlet of the heater 21 is connected to the blowout nozzle 24 via the air duct 22 and the rubber bellows tube 23.

  That is, when the fan 20 is driven, the air in the outer tub 9 flows into the drying duct 12 through the drop portion 15. The air dewatered and dehumidified in the drying duct 12 is discharged from the fan 20, then heated by the heater 21, and then blown out from the blowing nozzle 24 into the washing and dewatering tub 8 as high-temperature and low-humidity wind. The

  Although not shown, between the lower communication pipe 16 and the drain valve 17, a temperature for detecting the temperature of the washing water and the temperature of the air discharged from the washing water drain 18 during the drying operation. A sensor is provided.

  The washing and dewatering tub 8 includes a balance ring (also referred to as a fluid balancer) 8c formed of synthetic resin or the like at the upper end edge of the body plate 8a. The balance ring 8c is configured by enclosing a fluid having a large specific gravity therein, and when an eccentricity occurs due to the bias of the laundry when the washing and dewatering tub 8 rotates, the fluid moves in the balance ring 8c. This cancels the eccentricity and maintains the balance of rotation.

  The outer tub cover 9 a has a substantially semicircular inlet and is attached to the upper edge of the outer tub 9. Note that a lid member attached so as to be openable and closable is provided at the insertion port. Although not shown, a connection port to which the bellows tube 23 is connected and a connection port to which a cleaning hose 14 for tank cleaning described later is connected are provided on the back side (rear side) of the outer tank cover 9a. .

  A watering device 25 is fixed to the lower surface of the outer tub cover 9a via a plurality of screws. This watering device 25 is formed in a substantially annular shape, and is arranged so as to circulate along the peripheral edge portion of the outer tub cover 9a.

<Watering device 25 and outer tank cover 9a>
FIG. 2 is a front view of the watering device 25 assembled to the outer tub cover 9a. As shown in the figure, the washing / drying machine 1 of this embodiment includes a watering device 25 in the outer tub cover 9a.

  As will be described later, the watering device 25 according to the present embodiment supplies water to the washing and dewatering tub 8, which is a washing tub, and includes a plurality of discharge portions 27 (27a, 27b, 27c, 27d). It has. Moreover, although the water sprinkler 25 is formed with resin, if predetermined mechanical strength and workability are obtained, it will not be limited to this, It can also form with other materials, such as a metal.

  FIG. 3 is a view in which the watering device 25 is removed from the outer tub cover 9a. As indicated by W in FIG. 3, the washing water supplied from the water supply unit 7 passes through the cleaning hose 14 attached to the outer tub cover 9 a and falls to the water supply port 26 of the watering device 25. Thereafter, the water is poured (sprayed) from the plurality of discharge ports 27 opened in the water supply port 26 into the washing and dewatering tub 8.

  Moreover, as shown in FIG. 4, the water sprinkler 25 is attached to the upper surface of the washing and dewatering tub 8 which is a washing tub through the outer tub cover 9a.

  In order to increase the detergency of oil stains such as sebum, high concentration cleaning with increased detergent concentration is effective. In order to increase the detergent concentration, there are methods such as increasing the amount of detergent or decreasing the amount of water. Therefore, in order to increase the detergency of oil stains such as sebum without incurring running costs, it is desirable to reduce the amount of water and wash without increasing the amount of detergent. However, when the amount of water is reduced, if there is a large amount of laundry in the washing and dewatering tub 8, there will be a difference in water content between the upper and lower parts of the laundry, and the movement of the laundry may be slow, resulting in uneven washing. is there.

  Therefore, in the case where there is a large amount of laundry, the present invention scatters washing water early on the central portion and the end portion (near the inner wall) in the washing and dewatering tub 8 so that the laundry and the end portion stacked in the central portion. Even when the sticky laundry moves more and the amount of water decreases, the moisture content does not differ between the upper and lower parts of the laundry so that high-concentration washing can be performed more quickly. A specific invention will be described below.

  FIG. 5 shows the state of the washing water that pours into the washing and dewatering tub 8 from the washing hose 14. As shown in the figure, the washing water is spread on a substantially straight line at the central portion (Wa), the end portion (Wb), and the intermediate portion (Wc) between the end portion and the central portion of the washing and dewatering tub 8. . As a result, not only the end portion but also the central portion can be sprinkled throughout the washing tub at the water supply stage, so that the entire garment can be easily hydrated, the cloth movement can be improved during washing, and washing unevenness can be suppressed.

  FIG. 6 is an enlarged view of the water supply port 26 of the watering device 25. The washing water supplied from the washing hose 14 flows from the position A in the figure as shown in the figure, and is sprayed from the plurality of discharge ports 27 to the washing and dewatering tank 8. The plurality of discharge ports 27 are arranged on a substantially straight line from the end of the washing tub toward the center. Specifically, the first discharge port 27a, the washing / dehydrating tub, and the washing water are sprayed in the central portion of the washing / dehydrating tub 8 serving as a washing tub in one water supply port 26 (Wa in FIG. 5). The second discharge port 27b for spraying wash water on the end portion 8 (Wb in FIG. 5) is provided on a substantially straight line with a predetermined interval. Thereby, water is spread | dispersed on a substantially straight line toward the center from the edge of a washing tub, and the washing | cleaning and dehydration tub 8 during driving | running | working is spread evenly to clothing. In addition, as shown in the drawing, the third discharge port 37c is dispersed between the first discharge port and the second discharge port (Wc in FIG. 5) for spraying the wash water to the intermediate portion between the central portion and the end portion of the washing and dewatering tub 8. By providing it on a straight line connecting the discharge ports, it is possible to spread evenly on clothing. Further, a fourth discharge port 37d is provided for spraying washing water on the wall of the washing / dehydrating tub 8 (Wd in FIG. 5), and after dehydration rotating at high speed, the laundry is stuck to the wall of the washing tub by centrifugal force. Make sure that the laundry is still wet.

  In addition, it is assumed that the wash water discharged from the discharge port 27 is sprayed to the central portion of the washing and dewatering tank 8 when the water supply pressure of the faucet is 0.1 MPa or more.

  Thus, by arranging the discharge ports on a substantially straight line with a predetermined interval, the wash water can be sprayed from the end of the washing and dewatering tub 8 toward the center. That is, it is possible to improve the cleaning power of sebum stains and prevent deterioration of washing unevenness even if the water level is lowered without using a special rotating blade or the like and without running costs.

  FIG. 7 shows another arrangement example of the discharge ports 27 in the water supply port 26. The plurality of outlets of the watering device 25 may be provided with two outlets 27a1 on the center side of the washing and dewatering tank 8 which is a washing tub.

  FIG. 8 shows the state of water that pours into the washing and dewatering tub 8 through the discharge port 27a1 of FIG. Unlike the discharge port 27 of FIG. 6, when the tub rotates, it is not evenly distributed in the washing tub. However, since the spraying (Wa) to the center of the washing tub is increased, the center of the washing tub is further increased. A lot of washing water is poured into the laundry in the area, the laundry gathered in the center can be moved faster, the water level of the washing water is lowered, and high concentration washing can be done earlier, oil such as sebum Improves dirt cleaning power.

  FIG. 9 shows a state in which a wall 28 serving as a flow path is provided in the discharge port 27a2 of the water supply port. As shown in the figure, a wall 28 in which a flow path through which the discharged wash water flows is provided at the end of the discharge port 27b2. The wall 28 has a shape extending toward the center of the washing tub in order to guide water to the center of the washing tub. Thereby, the water flight distance can be improved by transmitting the water discharged from the discharge port 27b2 through the wall 28. That is, washing water can be supplied to the central portion of the washing tub more reliably.

DESCRIPTION OF SYMBOLS 1 Washing-drying machine 2 Case 3 Top cover 4 Outer lid 5 Opening part 6 Water supply hose connection port 7 Water supply unit 8 Washing and dehydration tank 9 Outer tank 9a Outer tank cover 10 Driving device 11 Detergent input device 14 Washing hose 25 Sprinkling device 26 Water supply port 27 Discharge port 28 Wall

Claims (13)

Having a plurality of outlets through which washing water is sprayed in the washing tub;
The plurality of discharge ports include at least a first discharge port for spraying the wash water to the center of the wash tub and a second discharge unit for spraying the wash water to the end of the wash tub. Watering device characterized by. A watering device according to claim 1,
The plurality of discharge ports have a third discharge port for spraying the wash tub between the center of the wash tub and the end of the wash tub,
The watering device in which the washing water sprayed from the first discharge port, the second discharge port, and the third discharge port is sprayed on a substantially straight line. The watering device according to claim 1 or 2,
The said 2nd discharge outlet is a watering apparatus provided in the wall side of the said washing tub from the said 1st discharge outlet. A watering device according to claim 2 or claim 3, wherein
The watering device in which the second discharge port, the third discharge port, and the first discharge port are provided on a substantially straight line from the end of the washing tub toward the center of the washing tub. A watering device according to any one of claims 1 to 4,
A watering device having a plurality of the first discharge ports. A watering device according to any one of claims 1 to 5,
The watering apparatus which has the wall in which the flow path through which the discharged washing water flows was formed in the tip of the said 1st discharge outlet. An outer tank,
A washing tub provided in the outer tub;
A watering device for sprinkling washing water in the washing tub,
The watering device has a plurality of discharge ports,
The plurality of discharge ports include at least a first discharge port for spraying the wash water to the center of the wash tub and a second discharge unit for spraying the wash water to the end of the wash tub. A washing machine featuring. The washing machine according to claim 7,
The plurality of discharge ports are washing machines provided on the water supply side from a half position in the depth direction of the washing tub. The washing machine according to claim 7 or 8,
The plurality of discharge ports have a third discharge port for spraying the wash tub between the center of the wash tub and the end of the wash tub,
The washing water sprayed from the first discharge port, the second discharge port, and the third discharge port is a washing machine sprayed on a substantially straight line. The washing machine according to any one of claims 7 to 9,
The said 2nd discharge port is a washing machine provided in the wall side of the said washing tub from the said 1st discharge port. The washing machine according to any one of claims 7 to 10,
The said 2nd discharge port, the said 3rd discharge port, and the said 1st discharge port are washing machines provided in the substantially straight line toward the said washing tub center part from the said washing tub edge part. The washing machine according to any one of claims 7 to 11,
A washing machine having a plurality of the first discharge ports. The washing machine according to any one of claims 7 to 12,
A washing machine having a wall formed with a flow path through which discharged wash water flows at the tip of the first discharge port.

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