JP4374375B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine provided with detergent charging means.

  The detergent input part of the washing machine is provided in an upper space in the outer box of the washing machine, and includes a detergent container, a detergent tray for putting detergent into the detergent container, and water supply means. The detergent tray is installed in the detergent container so that it can be pulled out. The water supply means includes a water supply valve provided on the rear side of the detergent container, and a water passage provided on the upper side of the detergent container in communication with the water supply valve. A number of sprinkling holes are provided on the lower surface of the water passage, and water flows down from the sprinkling holes to the detergent tray, and the detergent is poured into the detergent container. And it supplies to an outer tank from the water injection opening provided in the front side of an outer tank through the water injection pipe connected to the bottom part of a detergent container. The bottom surface of the detergent container is formed with an inclined surface so that the water injection pipe connecting portion is lowest.

JP 2005-118607 A

The user pulls out the detergent tray and puts in powder detergent.At this time, if too much detergent is added or if the detergent in the detergent tray is scraped off into the detergent container, the powder detergent is removed from the detergent tray. There is a possibility of falling into the detergent container and entering the water injection pipe as it is. In the water injection pipe, water usually remains, and the detergent absorbs this water and hardens the detergent. In particular, in the case of reserved washing with a long time from the introduction of the detergent to the water supply, the possibility of the detergent solidifying is very high. Since the solidified detergent is very difficult to dissolve, it does not flow completely in the washing water supply and remains in the water injection pipe. The remaining detergent dissolves in the water supply at the time of rinsing water supply, and there is a problem that the rinsing performance is lowered. Furthermore, if the rinse water supply does not completely dissolve (if the water temperature is low as in winter), the solidified detergent accumulates in the water injection pipe and the flow path area decreases. When this happens, the water that has entered the detergent charging section does not reach the outer tub, but overflows from the detergent tray insertion portion of the detergent container, causing water leakage.

  Although it is possible to make it difficult for detergent to enter the water injection pipe by providing the water injection pipe on the back side of the detergent container, it is necessary to increase the depth of the detergent container. However, if the detergent is dropped to the front side of the detergent container with the detergent tray being pulled out, water does not flow in this portion, so the detergent remains almost as it is and accumulates. Therefore, if water is allowed to flow to the front side of the detergent container, there is a risk of water leakage from the drawer portion of the detergent tray at a large flow rate. In order to prevent this, the depth of the detergent container may be increased, but the detergent container becomes larger.

  Although recent washing machines have been increased in capacity, considering the ease of installation at home, it is desirable to avoid increasing the size of the casing of the washing machine. For this purpose, it is necessary to make the detergent charging part as compact as possible, and it is difficult to increase the depth and depth of the detergent charging part.

  An object of the present invention is to provide a washing machine equipped with a highly reliable and space-saving detergent charging mechanism that does not cause residual detergent or water leakage regardless of the flow rate of water supply.

  In order to achieve the above object, a washing machine of the present invention includes a washing tub for washing, an outer tub containing the washing tub, water supply means for supplying water to the outer tub, and draining water in the outer tub. In the washing machine provided with the draining means, the water supply means includes a detergent container having a substantially box-like shape having openings on the upper surface and the front surface, and a thin box-shaped shower water supply unit provided in the upper surface opening of the detergent container. And a drawer-like detergent charging unit that is provided between the detergent container and the shower water supply unit and can be taken in and out from the front opening of the detergent container, and the detergent container is disposed at the bottom of the bottom of the mortar and the outer tub. A water inlet that communicates, and the bottom surface of the detergent container includes a first flow path that guides water flowing from the detergent inlet to the bottom bottom surface of the detergent container and the detergent directly to the water inlet, and the back of the detergent container 2nd leading from the side to the water inlet through the front side of the detergent container Configured to include a flow path.

The second flow path has a first inclined surface that descends from the back side of the detergent container toward the front side, and a second slope that is connected to the first inclined surface and the front side of the detergent container and descends toward the water inlet. And a third slope for spreading the water flowing down from the detergent charging part and the detergent over the entire first slope and flowing it at the top of the first slope. Good.
Further, the first inclined surface may be configured to include a flow rate control member that controls a flow rate that flows forward through the inclined surface at a large flow rate.
Furthermore, it is good to comprise so that it may have the rectification | straightening member which changes the direction of the flow of water to the said 2nd slope at the downstream of the said 1st slope.
Moreover, it is good to comprise so that the partition plate which separates the said 1st flow path and the said 2nd flow path may be provided in the said water injection port part where the said 1st flow path and the said 2nd flow path cross.
Further, it is preferable that the detergent charging portion has an opening on the upper surface and a detergent outlet on the back side surface, and has a protruding portion in substantially half of the width of the bottom surface of the detergent outlet.

In the washing machine of the present invention, the water flowing down from the detergent charging member to the detergent container and the detergent are divided into the first flow path and the second flow path, so that the flow rate of the water flowing through the second flow path is reduced. Even a small detergent container can prevent water leakage from the front opening of the detergent container. Since the second flow path passes through the front side of the detergent container, even if the detergent spills out from the detergent charging section when the detergent charging section is pulled out and the detergent is loaded, this portion becomes the second flow path. Therefore, it is possible to prevent the spilled detergent from being washed away by water and depositing the detergent into the detergent container. At this time, since there is a protrusion on the bottom surface of the detergent outlet of the detergent charging part, it is difficult for the protrusion to spill into the detergent container, and the detergent should be dropped on the part where water flows reliably in the second flow path. Therefore, the detergent does not accumulate in the detergent container.
Further, by spreading the water on the third slope and allowing it to flow over the entire first slope, there is no portion of the first slope where water does not spread, so that no detergent remains.
Further, the flow rate control member provided on the first slope acts to direct a part of the flow rate control member directly to the water injection section when a large flow rate flows through the first slope. Can prevent water leakage.
Moreover, the rectifying member provided on the downstream side of the first slope has the effect of smoothly flowing water from the first slope to the second slope, and can prevent water leakage from the front opening of the detergent container. .
Further, the flow direction of water in the first flow path and the flow direction of water in the second flow path are opposite directions, and flow collision occurs at the water injection port where the first flow path and the second flow path intersect. Since the partition plate is provided in order to prevent deterioration of drainage from the water injection port, water can be smoothly drained from the water injection port, and the water level in the detergent container can be increased, preventing water from overflowing from the detergent container.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external view of a drum type washing machine according to an embodiment of the present invention. 2 is a side view showing the internal structure, FIG. 3 is a plan view showing the internal structure (a part of the upper reinforcing member 36 is cut away), and FIG. 4 is an upper left portion showing the internal structure. It is a front view.

  Reference numeral 1 denotes a housing constituting the outer shell. The housing 1 is mounted on a base 1h, and includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are connected by a U-shaped upper reinforcing member 36, a front reinforcing member 37, and a rear reinforcing member (not shown), and form a box-shaped casing 1 including the base 1. However, it has sufficient strength as a housing.

  Reference numeral 9 denotes a door that closes a slot for loading and unloading the laundry provided in the approximate center of the front cover 1c, and is supported by a hinge 9c provided in the front reinforcing member 37 so as to be opened and closed. When the door opening button 9d is pressed, a lock mechanism (not shown) is released and opened, and the door is locked and closed by pressing the door against the front cover 1c. The front reinforcing member 37 has a circular opening for taking in and out the laundry concentrically with an opening of the outer tub described later.

  Reference numeral 6 denotes an operation panel provided in the upper center of the housing 1 and includes a power switch 39, operation buttons 12 and 13, and a display 14. The operation panel 6 is electrically connected to a control device 38 provided at the lower part of the housing 1.

Reference numeral 19 denotes a detergent container having an opening at the upper part and the front part provided on the upper left side in the housing 1, and a drawer-type detergent tray 7 is mounted from the front opening 19b. When putting in detergents, the detergent tray 7 is pulled out as shown by a two-dot chain line in FIG. The detergent container 19 is fixed to the upper reinforcing member 36 of the housing 1. The bottom surface of the detergent container 19 is cut obliquely to prevent interference with the outer tub 2, and the right side is shallow and the left side is deep when viewed from the front (FIG. 4). The detergent container 19 has a water outlet 19a on the left side or slightly rearward. Accordingly, the bottom surface of the detergent container 19 is formed in a mortar shape such that the position of the water outlet 19a is the lowest.

  On the back side of the detergent container 19, components related to water supply such as a water supply electromagnetic valve 16, a bath water supply pump 17, and a water level sensor 34 are provided. The upper opening 19c of the detergent container 19 includes a water supply unit 15 to which a water supply electromagnetic valve 16 is attached. The top cover 1e is provided with a water supply hose connection port 16a from a water tap and a water absorption hose connection port 17a for remaining hot water in the bath.

  3 is a cylindrical washing and dewatering tub that is rotatably supported, and has a large number of through holes (not shown) for water flow and ventilation on the outer peripheral wall thereof, and the laundry is taken in and out at the front end face. An opening 3a is provided for this purpose. A fluid balancer 3c integrated with the washing and dewatering tub 3 is provided outside the opening 3a. Further, the rotation center axis of the washing and dewatering tub 3 is inclined so that the horizontal or opening side is higher.

  Reference numeral 2 denotes a cylindrical outer tub, which coaxially encloses the washing and dewatering tub 3 and attaches the motor 4 to the outer center of the rear end face. The rotating shaft of the motor 4 passes through the outer tub 2 and is connected to the washing and dewatering tub 3. The outer tub 4 is supported by a damper 5 whose lower side is fixed to the base 1h. Further, the upper side of the outer tub 4 is supported by an auxiliary spring 33 attached to the upper reinforcing member 36, and prevents the outer tub 4 from falling in the front-rear direction. The front end surface of the outer tub 4 has an opening for taking in and out the laundry. The opening provided in the main opening and the front reinforcing member 37 is connected by a rubber bellows 10, and the outer tub 2 is sealed with water by closing the door 9.

  A water supply port 2 a for supplying water and detergents into the outer tub 2 is provided at the rear side of the left outer surface of the outer tub 2. The water supply port 2 a and the water outlet 19 a of the detergent container 19 are connected by a rubber bellows tube 20. A drain port 21 is provided at the lowermost part on the rear side of the bottom of the outer tub.

A circulation pump 24, a filter case 23, and a drain valve 25 are provided between the outer tub 2 and the base 1h. The drain 21 of the outer tub 2 and the filter case 23 are connected by a hose 22. The filter case 23 has a cylindrical shape having an opening on the front side, and a removable filter 23c is attached to the inside of the filter case 23. The filter case 23 collects foreign matter and lint in the washing water. The filter case 23 is inclined so that the front side becomes higher so that the filter 23c can be easily attached and detached by opening the door 1g provided on the lower front cover 1f.

On the back side of the filter case 23, a water inlet 23a, a water outlet 23b, and a suction port 24a of the circulation pump 24 are provided. The drain port 21 and the water inlet 23a of the outer tub 2 are connected by a hose 22, and the drain valve 25 and the water outlet 23b are connected by a hose 25a. Further, a drain hose 26 is connected to the drain valve 25 and drains washing water outside the machine.

  The discharge port 24b of the circulation pump 24 is connected to the circulation hose 27 attached to the outer peripheral wall on the front side of the outer tub 2 through the bellows tube 27a. The circulation hose 27 is connected to a nozzle 27b opened toward the washing and dewatering tub 3 on the upper side of the outer tub 2.

  When the circulation pump 24 is operated with the drain valve 25 closed, the washing water in the outer tub 2 passes through the circulation hose 27 and is sprinkled into the washing / dehydration tub 3 from the nozzle 27b. Further, when the drain valve 25 is opened, the washing water in the outer tub 2 is drained out of the machine.

  An air trap 36 is provided at the lowermost portion of the rear end face of the outer tub 9 and is connected to a water level sensor 34 by a tube 35 to detect the water level in the outer tub 2.

  8 is a drawer-type dry filter provided on the upper right side of the housing 1, and the mesh-type filter 8a is taken out when the filter is cleaned. A drying duct 29 is connected to the drying filter 8. The drying duct 29 is installed inside the back surface of the housing 1 and is connected to an air inlet provided below the rear end face of the outer tub 2 by a rubber bellows tube 29a. A water cooling and dehumidifying mechanism (not shown) is built in the drying duct 29, and cooling water is supplied from the water supply electromagnetic valve 16d to the water cooling and dehumidifying mechanism by the water supply hose 32.

  Reference numeral 28 denotes a blower fan provided on the rear side of the drying filter 8, which connects the intake port to the dry filter 8 and the discharge port to the hot air duct 31 in which a heater (not shown) is built. The hot air duct 31 is connected to the front opening of the outer tub 2 via a rubber bellows tube (not shown).

  When the blower fan 28 is operated during the drying operation and the heater is energized, warm air blows into the washing and dewatering tub 3, warming the laundry and evaporating moisture. The air that has become hot and humid is sucked into the drying duct 29, cooled and dehumidified with cooling water flowing down the water-cooled dehumidifying mechanism to become dry low-temperature air, heated again by the heater through the filter 8a, and inside the washing and dehydrating tub 3 Circulate to blow.

  The control device 38 includes a microcomputer and input circuits from drive circuits, operation buttons, and various sensors. The microcomputer receives various information signals in the user's button operation, washing process, and drying process. The output from the microcomputer is connected to a drive circuit and connected to a motor 4, a water supply electromagnetic valve 16, a drain valve 25, a circulation pump 24, a blower fan 28, etc., and controls opening / closing, rotation, and energization thereof. Further, in order to inform the user of the operating state of the washing machine, it is connected to a display 14 or a buzzer.

  Next, details of the detergent container 19, the detergent tray 7, and the water supply unit 15 will be described with reference to FIGS. 5 is a plan view showing a state in which the detergent tray 7 is set in the detergent container 19, and FIG. 6 is a plan view showing a state in which the detergent tray 7 is pulled out. FIG. 7 is a perspective view of the detergent container 19 as viewed from the rear and diagonally upward, and FIG. 8 is a perspective view of the detergent container 19 as viewed from the diagonally front side. 9 is a longitudinal sectional view of the water supply unit 7 attached to the detergent container 19, cut along the two-dot chain line in FIG. 5, and viewed from the X direction. FIG. 10 is a side view of the detergent tray 7 viewed from the opposite side of the handle 47a, and FIG. 11 is a plan view of the water supply unit 7 viewed from below.

  The front, rear, left and right described in the following description are those when viewed from the front opening 19b side of the detergent container 19 (front side of the washing machine).

  The detergent tray 7 includes a detergent loading chamber 41 on the left side and a softening agent loading chamber 42 on the right side, and has a handle 47 that also serves as a part of the housing 1 on the front side. Reference numeral 47b denotes a movable portion that is pushed by the user with a finger and falls down as shown by a solid line from the two-dot chain line in FIG. 8, and grips the handle 47a to pull out or push in the detergent tray 7. When the hand is released from the handle 47a, the spring 47b returns with a spring force.

  The detergent charging chamber 41 has a box shape with an upper portion and a back side opened, and a bottom surface of the detergent charging chamber 41 is an inclined surface having a high front side and a low back side. A protrusion 44 is provided on the right side of the back end where the detergent and water flow out. A foreign object passage prevention fence 43 is provided slightly on the near side of the rear end.

  The softening agent charging chamber 42 has a box shape with an opening at the top, a siphon 45 on the bottom, a partition 49a, 49b on the back, an opening at the top, and an outlet 46a on the bottom. 46. A softener outflow passage 48 having an opening 48 a on the back side is provided outside the bottom surface of the softener charging chamber 45. A siphon 45 and an outlet 46 a are opened in the softener outlet flow channel 48.

  A partition 7a is provided between the detergent charging chamber 41 and the softener charging chamber 42 and the handle 47, and when the detergent tray 7 is pushed into the detergent container 19, the front opening 19b of the detergent container is closed. .

The water supply unit 15 includes a thin box-shaped water supply chamber 72, a water supply box 73 formed integrally with the water supply chamber 72, and the water supply electromagnetic valve 16. The water supply box 73 is divided into two chambers, a room A66 to which the detergent electromagnetic water supply valve 16b is connected and a room B67 to which the softening finish electromagnetic water supply valve 16c is connected. The water supply box 73 includes a downward projecting portion 68, and the projecting portion 68 is provided with a drain hole A66a connected to the room A66 and a drain hole B67a connected to the room B67.

  The water supply chamber 72 is divided into two chambers, the interior of which is partitioned by a partition wall 71. A detergent water supply chamber 63 connected to the room A 66 is located on the left side of the water supply unit 15, and has a large number of small holes 65 formed on the lower surface thereof. Reference numeral 64 denotes a finishing agent water supply chamber connected to the room B67, and a plurality of holes 69 are opened in front of the lower surface.

A notch 72 is provided on the rear side wall surface of the detergent container 19. When the water supply unit 15 is set in the detergent container 19, the water supply box 73 is fitted into the notch 72, and the protrusion 68 is formed in the detergent container 19. enter.

  The bottom surface of the detergent container 19 is roughly composed of four slopes. The first is the right slope 50 on the right side. The right slope 50 is a slope with a lower left corner formed by obliquely cutting the bottom surface of the detergent container 19 in order to prevent interference between the outer tub 2 and the detergent container 19. The second is a central slope 52 at the center, which is an inclined surface that is substantially horizontal in the left-right direction and becomes lower toward the front. The slope is wider on the back side and narrower on the front side. The third is a left back slope 51 on the left back side, which is inclined to the near side, and the depth of the top of the back side is lower than the top of the back side of the central slope 52. The fourth is a left front slope 53 on the left front side, which is inclined to the back side. The width of the slope in the left-right direction is wide on the front side and narrow on the back side, and the central slope 52 intersects at a substantially central portion on the right side of the slope. The height of the front uppermost portion of the left front slope 53 is lower than the lower surface of the front opening 19b, and is substantially the same height as the rear uppermost portion of the central slope 52. The left back slope 51 and the left front slope 53 meet at a substantially central portion (valley) on the left side of the bottom surface of the detergent container 19. The many portions are at the lowest position on the bottom surface of the laundry container 19, and a water outlet 19a is provided here.

  The right slope 50 is provided with a rib A60 having a stepped upper surface parallel to the slope on the back side. The rib A <b> 60 is for reducing a gap between the bottom surface of the softening agent charging chamber 42 and the bottom surface of the softener outflow channel 48 when the detergent tray 7 is pushed in.

  On the left side in front of the right slope 50, a step portion 55 that protrudes from the slope with the upper surface being substantially horizontal is provided. The left end of the stepped portion 55 is a substantially vertical surface, is located slightly to the right of the intersection of the right slope 50 and the central slope 52 and is connected to the right side of the left front slope 53. The position of the upper surface of the step 55 is lower than the lower surface of the front opening 19 b of the detergent container 19 in order to prevent interference with the detergent tray 7.

  A small inclined surface 54 inclined to the right front side is provided on the left back side of the central inclined surface 52. In front of the small slope 54, there is an arc-shaped rib B56 at the approximate center of the central slope 52 in the left-right direction. The direction of the rib B56 is set so that the extension line of the arc is substantially perpendicular to the back side wall surface of the detergent container 19 on the back side of the arc and the extension line of the arc faces the partition plate 59 described later on the near side. is there.

  There is a rib C57 along the intersection of the right slope 50 and the central slope 52 on the front side of the rib B56. The length of the rib C57 is about 1/3 of the length of the central slope 52 in the front-rear direction, the position in the front-rear direction is slightly forward from the center of the central slope 52, and the front end is slightly behind the intersection with the right slope 50. is there. Further, the front half of the rib C57 overlaps the stepped portion 55. At the left end of the central slope 52, a rib D58 is provided. The length of the rib D58 extends over almost the entire area of the central slope 52 in the front-rear direction, but the frontmost side is missing. The height of the rib B is about 10 mm, and the height of the ribs C and D is about 4 mm.

  The depth on the back side of the central slope 52 is set so that when the detergent tray 7 is pushed in, it has a back end (outflow end) of the detergent tray 7 and a vertical clearance H1 (about 10 mm). Further, a clearance H2 (about 10 mm) in the front-rear direction is provided between the protruding portion 44 of the detergent entry chamber 41 and the back side wall surface of the detergent container 19. By doing so, the detergents and water flowing out from the detergent tray 7 smoothly flow into the detergent container 19.

  A partition plate 59 that separates the left back slope 51 and the left front slope 53 is provided in a valley where the left back slope 51 and the left front slope 53 intersect. The left end surface of the partition plate 59 extends to a part on the right side of the water outlet 19a. The position of the partition plate 59 in the front-rear direction is slightly behind the center of the water outlet 19a in the front-rear direction. Further, the upper surface of the partition plate 59 is slightly lower than the adjacent central inclined surface 50.

  On the inner side of the left and right side surfaces of the detergent container 19, there are step portions 61a and 61b extending in the front-rear direction, and the lower surfaces of the guides 70a and 70b of the detergent tray 7 are placed on this, and the detergent tray 7 is positioned in the vertical and horizontal directions. The detergent tray 7 can be smoothly put in and out of the detergent container 19. A convex stopper 62 is formed on the upper back side of the guides 70a and 70b. When the detergent tray 7 is pulled out, it hits the upper frame 69 of the front opening 19b of the detergent container 19, and the detergent tray 7 is simple. It is designed not to come out. However, when the detergent tray 7 is pulled strongly, the members are deformed so that the detergent tray 7 can be pulled out from the detergent container 19 so that the detergent tray 7 can be easily cleaned.

  Next, the movement of the detergent container 19, the detergent tray 7, and the water supply unit 15 and the flow of water will be described.

  At the time of washing, the user pulls out the detergent tray 7, puts a predetermined amount of powder detergent into the detergent charging chamber 41, puts the softening finish into the softening finishing agent loading chamber 42, and pushes in the detergent tray 7. When the washing process is started and the detergent water supply electromagnetic valve 16b is opened, tap water flows from the room A66 into the detergent water supply room. A part of the water that has flowed into the room A66 is sprayed directly onto the right inclined surface 50 of the detergent container 19 through the drain hole A66a. At this time, the water hitting the right inclined surface 50 is scattered around, but the water splashed on the front surface of the detergent container 19 stops at the rib A60 and therefore does not jump out from the front opening 19b.

  The remaining water that has flowed into the room A66 enters the room A66 of the water supply chamber 72 and pours into the detergent charging chamber 41 through the small hole 65. The detergent in the detergent charging chamber 41 is pushed away by the momentum of water and flows down into the detergent container 19 from the back end with the water. A part of the water and the detergent that has flowed down flows on the left back slope 51 (flow A indicated by an arrow in FIG. 6) and flows into the outer tub 2 from the water outlet 19a. Since the uppermost part of the left rear slope 51 is lower than the uppermost part of the central slope 52, water and detergent that have flowed down to the left rear slope 51 do not flow toward the central slope 52.

  The remaining water and detergent flow through the central slope 52 toward the front side (flow B), change the flow direction at the left front slope 53, make a U-turn, flow into the water outlet 19a, and are supplied into the outer tub 2. The water flowing down from the detergent charging chamber 41 to the central slope 52 first hits the small slope 54. Since the small slope 54 has a low slope on the right front side, the flow spreads in a fan shape here and flows over the entire central slope 52 toward the near side (flows B1, B2, B3). For this reason, the place where the flow stays on the central slope 52 or the place where there is no flow disappears, and the detergent does not stay on the slope. Flows B1, B2, and B3 merge on the left front slope 53 and change the flow direction (flow C).

  The flow direction from the left back slope 51 and the flow from the left front slope 53 are opposite. For this reason, if the partition plate 59 is not provided, the flow from both collides in the vicinity of the water outlet 19a, and the water drainage deteriorates. The partition plate 59 has an effect of changing the direction of flow from both to the water outlet 19a side, and has an effect of allowing water to smoothly flow out of the water outlet 19a.

  The ribs B56, ribs C57, and ribs D58 provided on the central slope 52 have an effect of rectifying water flowing on the slope. The rib B56 is for preventing water from leaking from the front opening 19b of the detergent container 19 when the feed water flow rate is large. If the water supply flow rate is large, the flow velocity of the water flowing toward the front side on the central slope 52 increases, and the U-turn cannot be completely made on the left front slope 53, so that the water may leak from the front opening 19b over the left front slope 53. . By providing the rib B56, the water hitting the rib B56 changes the flow direction to the left along the circular arc surface (flow B4), goes to the partition plate 59, and is discharged directly from the water outlet 19a. For this reason, since the amount of water flowing downstream from the rib B decreases, no water leaks from the front opening 19b. Since the height of the rib B56 is higher than that of the other ribs, the flow direction can be reliably changed even when the flow rate is high, that is, when the water level flowing through the central slope 52 is high.

  When the flow rate is small, the rib D58 prevents the water flowing on the central slope 52 from flowing to the downstream side of the left back slope 51 or the left front slope 53, and serves as a bank to guide all the way to the left front slope 53 and make a U-turn. . On the other hand, when the flow rate is large, a part of the water flowing on the central slope 52 passes over the rib D58 and flows downstream of the left back slope 51 and the left front slope 53 (flow B5). To reduce. This has the effect of preventing water leakage from the front opening 19b, as with the rib B56. Further, the width of the central slope 52 is narrower toward the front side (downstream side). This is to increase the flow velocity on the downstream side of the central slope 52. By doing so, the water turns over the left front slope 53U while spreading over a wide range of the left front slope 53 as much as possible.

  By doing this, when the user pulls out the detergent tray 7 and puts the powder detergent into the detergent charging chamber 41, even if the detergent spills from the back end of the detergent charging chamber 41 and falls to the left front slope 53, It is washed away with water and does not accumulate in the detergent container 19. Further, the protruding portion 44 provided on the right side of the rear end portion of the detergent charging chamber 41 is provided in order to cause a large amount of detergent falling from the detergent charging chamber 41 to fall to the left side of the left front slope 53. Further, since the step portion 55 is provided, even if a large amount of detergent spills out, the detergent does not go to the right side from the left end surface of the step portion 55. The left end surface of the stepped portion 55 is provided at the boundary where water does not flow on the right side from this position when the minimum flow rate is within the usage conditions (when there is a rib C57 described later). Therefore, the spilled detergent is surely washed away with water. In addition, the position of the water outlet 19a is provided on the back side of the detergent container 19 sufficiently away from the detergent dropping position so that the detergent spilled from the detergent charging chamber 41 does not slide down the left front slope 53 and enter the water outlet 19a. It is.

  The rib C57 has a role of a guide for ensuring that water flows to the left end surface of the stepped portion 55. Since the right side of the rib C57 is a right slope, water does not reach the left end surface of the step portion 55 without the rib C57. By providing the rib C57, water that has entered the right side of the rib C57 can be guided to the left end surface of the stepped portion 55. The rib C57 also has a role of rectification so that water can easily make a U-turn on the left front slope 53. The water (flow B3) flowing between the rib C57 and the step portion 55 flows toward the left front slope 53 in the left front direction. For this reason, the water flowing between the ribs C57 and the ribs D58 of the central slope 52 and entering the left front slope 53 (flows B1 and B2 facing substantially forward) is directed to the left side, and the water smoothly flows on the left front slope 53. To turn. For this reason, the water does not overflow from the front opening 19b without being completely bent by the left front slope 53.

  When water is supplied to a specified water level, the motor 4 is rotated, and the washing and dewatering tub 3 is rotated to start washing. When the washing is finished, the water is drained and dehydrated, the detergent electromagnetic water supply valve 16b is opened, water is supplied into the outer tub 2, and the rinsing process is started.

  The rinsing process is usually performed 2 to 3 times. During the final rinse water supply, the soft material finish agent electromagnetic water supply valve 16c is opened to supply water to the soft finish agent introduction chamber 42. The softening agent in the softening agent charging chamber 42 overflows from the partition wall 49 a while being diluted with water, enters the softening agent outlet chamber 46, flows from the outlet 46 a through the softener outlet passage 48, and is located on the right front side of the detergent container 19. It flows down to the back side of the slope 53. And it flows through the central slope 52, changes the flow direction at the left front slope 53, and is supplied into the outer tank 2 from the water outlet 19a.

  When the rinsing process is finished, dehydration is performed and washing is finished. If the drying operation has been washed, drying is performed.

  The washing machine configured as described above has the following operational effects.

  A flow path that flows directly to the water outlet and a flow path that swirls in the detergent container and flows to the water outlet are provided in the detergent container. The uppermost stream part of the swirling channel is provided with a slope that allows water to flow through the entire swirling channel, and a rib that rectifies the flow of water is provided in the swirling channel, so that the detergent stays in the channel. There is nothing.

  Also, the rib shape allows all water to flow through the swirl flow path when the feed water flow rate is low, and directs part of the swirling flow directly to the water outlet when the feed water flow rate increases. Can be prevented.

  In addition, if the detergent is spilled into the detergent container when the user puts in the detergent, the rib is configured so that the spilled detergent is flushed with water, so that the spilled detergent can be prevented from accumulating in the detergent container. .

It is an external view which shows the drum type washing machine of this invention. It is a side view which removes a side plate and shows schematic structure of the drum type washing machine of this invention. It is a top view which removes an upper cover and shows schematic structure of the drum type washing machine of the present invention. It is a front view which removes a front cover and shows container parts, such as detergent, in the drum type washing machine of the present invention. It is a top view which shows the state which set the detergent tray in the detergent container. It is a top view which shows the state which pulled out the detergent tray from the detergent container. It is the perspective view which looked at the detergent container from the back upper part. It is the perspective view which looked at the detergent container from the front upper part. It is sectional drawing which attached the water supply unit to the XX cross section of the detergent container and detergent tray in FIG. It is the side view which looked at the detergent tray in FIG. 5 or FIG. 6 from the back side. It is the bottom view which looked at the water supply unit in FIG. 9 from the downward direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Outer tub 3 Washing / dehydration tub 4 Motor 6 Operation panel 7 Detergent tray 9 Door 15 Water supply unit 16 Water supply solenoid valve 19 Detergent container 19a Outlet 20 Bellows tube 38 Controller 41 Detergent input chamber 44 50 Right slope 51 Left back slope 52 Central slope 53 Right front slope 54 Small slope 56 Rib B
57 Rib C
58 Rib D
59 Partition plate 60 Rib A

Claims (4)

In a washing machine provided with a washing tub for washing, an outer tub containing the washing tub, a water supply means for supplying water to the outer tub, and a drain means for draining water in the outer tub,
The water supply means is provided between a detergent container having openings on the upper surface and the front surface, a thin box-shaped shower water supply unit provided in the upper surface opening of the detergent container, and the detergent container and the shower water supply unit. Consists of a drawer-like detergent input part that can be taken in and out from the front opening of the detergent container,
The detergent container is provided with a water injection port that communicates with the outer tub at the bottom of the bottom of the mortar shape, and the bottom surface of the detergent container directly flows the water and the detergent flowing down from the detergent charging portion to the bottom surface of the detergent container. A first flow path formed by an inclined portion inclined from the back side of the detergent container to the near side so as to lead to the water inlet;
A first inclined surface that is higher than the inclined portion and descends from the back side of the detergent container to the front side, a second inclined surface that is connected to the first inclined surface and the front side of the detergent container and falls toward the water inlet, A second flow path in which a water flowing through the first inclined surface is guided to the second inclined surface to form a U-turn rib and is guided from the back side of the detergent container to the water inlet through the front side of the detergent container. And a washing machine. The washing machine according to claim 1 , wherein the first inclined surface includes a flow rate control member that controls a flow rate that flows forward through the inclined surface when the flow rate is large.   The washing machine according to claim 1, wherein a partition plate that separates the first flow path and the second flow is provided at the water inlet portion where the first flow path and the second flow path intersect. A washing machine featuring.   2. The washing machine according to claim 1, wherein the detergent charging portion has an opening on the upper surface and a detergent outlet on the back side surface, and has a protrusion on a substantially half in the width direction of the bottom surface of the detergent outlet. And a washing machine.

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