JPH10146492A - Water supply system for washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly feed water with no remaining detergent, whenever the detergent is put on the detergent put-in cover, regardless of a high to low city water pressure and more or less quantity of the water, by fitting the surface made at the front of the water-pouring device to the outside shell in a closed contact with the front surface wall whose bottom end surface is made to a reversed-projected form. SOLUTION: The city water reaches the water accommodation box 16 through its faucet via the electromagnetic water supply valve 9, thus, pouring the water into the washing machine via the flow-out port 15. The bottom end of the front surface wall 22 is then positioned below the bottom surface 18 of the water accommodation box 16, when opening the detergent put-in cover, and further, the bottom surface of the front surface wall 22 has a near-linear section 23 at its center, forming a curve 24 near-symmetrically at both sides of this near-linear section 23 to make a reversed- projected form. Whenever a plenty water quantity flows out of the water-pouring device 13, this can save the water flow force, because it hits the near-linear section 23 of the front surface wall 22 to disperse the force-restricted water near-symmetrically to the curve 24 formed at the both sides of the near-linear section 23 to discharge it out of the flow-out port 15 equally as a whole. The detergent on the detergent put-in cover can, therefore, be flowed out uniformly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for a washing machine that pours a large amount of water during washing and rinsing.

[0002]

2. Description of the Related Art Conventionally, a washing machine generally has a structure as shown in FIG. Hereinafter, the configuration will be described.

As shown in the figure, a water receiving tub 1 includes a washing and dewatering tub 3 in which a pulsator 2 is rotatably arranged at the bottom, and is suspended from an outer frame 5 by a suspending rod 4. An exterior body 6 is mounted on the upper part of the outer frame 5, and a cloth input port 7 is formed at a substantially central portion of the exterior body 6, and is covered with a lid 8. In addition, the exterior body 6
An electromagnetic water supply valve 9 and a water injection device 10 are mounted at the rear of the vehicle.
The water injection device 10 is composed of a detergent charging lid 11 rotatably mounted on the water injection device 10 and the outer package 6.
Water is poured into the washing and dewatering tub 3 from 2.

In the above construction, when the detergent is directly introduced into the washing and dewatering tub 3 during the washing process, the lower end of the detergent introduction lid 11 becomes an outlet 12, and water is caused to flow out from the outlet 12 so as to wash and remove. Water is supplied into the water tank 3. When detergent is introduced into the detergent introduction lid 11 of the water injection device 10, when water supply is started at the time of washing, water is poured from the running water port 12, and the detergent is supplied to the washing and dewatering tub 3 together with the water by the force of the water. Inject water. In any case, when the predetermined water level is reached, the pulsator 2 is driven to perform washing.

After the washing is completed and the high-concentration washing liquid is drained, even during the rinsing process, water is supplied from the water inlet 12 to the detergent charging lid 1.
The water is poured into the washing and dewatering tub 3 through 1 and the water is collected in the water receiving tub 1 to diffuse the detergent components attached to the clothes in the rinsing water to perform dilution.

[0006]

In such a conventional construction, since the water is injected from the rear to the front of the water injection device 10, when the water is supplied in a large amount of water, the detergent charging lid 1 is used.
When the detergent is placed on No. 1, there is no detergent remaining and the detergent flows out. However, in the case of a small amount of water, when the detergent is placed on the detergent input lid 11, the water collects at the center of the detergent input lid 11, and the detergent remains on both sides of the detergent input lid 11.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to make it possible to uniformly inject water without detergent residue when a detergent is placed on a detergent charging lid regardless of the level of tap water pressure and the amount of water. I have.

[0008]

According to the present invention, in order to achieve the above object, a detergent pouring lid is provided so as to be openable and closable, and a water pouring device for pouring water into a washing tub from an outlet is provided. The front surface wall is attached to the exterior body while being in close contact with the front wall of the exterior body, and the lower end surface of the front wall is formed in an inverted convex shape.

[0009] Thus, the water injected from the water injection device with the detergent charging lid opened can be uniformly injected from the lower side of the front wall regardless of the level of the tap water pressure and the amount of water. The detergent placed on the charging lid can be flowed uniformly, and the detergent residue can be prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is provided with a water injection device which is provided with a detergent charging lid so as to be openable and closable, and injects water into a washing tub from an outlet, and a surface provided on a front surface of the water injection device. Is attached to the exterior body in close contact with the front wall of the exterior body, the lower end surface of the front wall is formed in an inverted convex shape, and water injected from the water injection device with the detergent charging lid opened is:
Regardless of the level of tap water pressure or the amount of water, it hits the front wall of the exterior body and the lower end face of the front wall is formed in a reverse convex shape, so the flow of water hitting the front wall is dispersed, Water can be uniformly poured from the lower side, and the detergent placed on the detergent charging lid can be uniformly flowed, so that detergent remaining can be prevented.

According to a second aspect of the present invention, in the first aspect of the present invention, the lower end surface of the front wall has a substantially straight portion in the center and curved portions substantially symmetrically on both sides of the substantially straight portion. The water injected from the water injection device with the detergent input lid open should hit the substantially straight part of the front wall regardless of the level of tap water pressure and the amount of water, and suppress the momentum of water. The water whose momentum has been suppressed is distributed almost symmetrically in the curved part formed on both sides of the substantially straight part, so that water can be poured uniformly from the outlet, and the detergent placed on the detergent input lid can be made to flow uniformly. Can be.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a plurality of rectifying ribs are erected at the water outlet of the water injection device, and the lower end face of the front wall formed in an inverted convex shape. And the gap between the rectifying ribs is made substantially even, and even if a large amount of water flows from the water injection device, it hits the inverted convex part of the front wall at the center of the exterior body and suppresses the momentum of the water, In addition, since the gap between the rectifying ribs of the water injection device is arranged almost evenly, it is possible to make the water flow evenly over the entire surface of the detergent input lid, and there is no residual detergent when the detergent is placed on the detergent input lid. It can be prevented from flowing out and spoiling the aesthetics of the user.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIGS. 1 and 2, a water injection device 13 is provided with a detergent input lid 14 so as to be openable and closable, and injects water into a washing and dewatering tub (washing tub) 3 from an outlet 15. A storage box 16 having a front opening is provided. An inflow port 17 is formed on the rear side wall of the storage box 16, a bottom surface 18 of the storage box 16 is inclined forward, a substantially concave portion 19 is formed integrally with the bottom surface 18, and a surface 20 is formed on the outer periphery of the front surface. It is formed integrally.

[0015] The water injection device 13 is provided with
Is attached to the exterior body 21 so as to be in close contact with the front wall 22. At this time, the front opening of the storage box 16 is in contact with the front wall 22 of the exterior body 21, and only the lower part is a non-contact part and the outlet 1
5 is formed. The lower end surface of the front wall 22 has a substantially straight portion 23 at the center, and a curved portion 24 is formed substantially symmetrically on both sides of the substantially straight portion 23 to form an inverted convex shape. The water injection device 13 is configured to be located below the bottom portion 18.

The detergent input lid 14 is rotatable by fitting a C-shaped fitting portion 26 provided on the detergent input lid 14 to a substantially cylindrical convex portion 25 provided at the lower part of the front surface of the storage box 16. attachment,
On the upper side of the detergent input lid 14 on the opposite side of the rotation fulcrum, a claw portion 27 that can be hooked on the front wall 22 is provided so that the detergent input lid 14 can be opened and closed. The electromagnetic water valve 9 attached to the rear part of the exterior body 21 communicates with the inflow port 17 through an inflow hose 28.

In the upper configuration, in the washing and rinsing steps, water enters the electromagnetic water supply valve 9 from the water supply via a water supply hose (not shown), and reaches the storage box 16 through the flow water hose 28 and the flow inlet 17. Then, water is poured into the washing and dewatering tub 3 from the outlet 15.

When the detergent input cover 14 is opened, the lower end of the front wall 22 is located below the bottom 18 of the storage box 16;
Further, the lower end surface of the front wall 22 has a substantially straight portion 23 at the center, and the curved portion 24 is formed substantially symmetrically on both sides of the substantially straight portion 23 so as to be formed in an inverted convex shape.
When a large amount of water flows from the
, The momentum of the water can be suppressed, and the water of which the momentum has been suppressed is a curved portion 24 formed on both sides of the substantially straight portion 23.
, And water flows out from the outlet 15 uniformly. Therefore, when the detergent is placed on the detergent input lid 14, the detergent on the detergent input lid 14 can be uniformly flowed.

In addition, even when the water pressure is low and the amount of water to be injected is small, the exterior body 2 that is in close contact with the surface portion 20 of the water injection device 13 can be used.
1, the front wall 22 and the lower convex surface of the front wall 22 are in a reverse convex shape, and the flow of water can be dispersed not only in the center but also in the entire area of the detergent introduction lid 14. Can flow over the entire area, thereby preventing the detergent from remaining.

(Embodiment 2) As shown in FIGS. 1 and 3, a plurality of rectifying ribs 29 are provided upright at the water outlet 15 of the water injection device 13. The height of the rectifying rib 29 at the center of the outlet 15 is reduced, and the height of the rectifying rib 29 is increased as approaching both ends. The gap D with the upper end is made substantially uniform over the entire lower end surface of the front wall 22. Other configurations are the same as those in the first embodiment.

In the above configuration, when a large amount of water flows from the water injection device 13 when the detergent charging lid 14 is opened, the water impinges on the substantially straight portion 23 of the front wall 22 and can suppress the momentum of the water. The water thus obtained is dispersed in the curved portions 24 formed substantially symmetrically on both sides of the substantially straight portion 23. At this time, since the lower end of the front wall 22 is formed in an inverted convex shape, and the gap between the lower end surface of the front wall 22 and the rectifying rib 29 provided at the outlet 15 is made substantially uniform, the flow of water is dispersed. As a result, water can flow uniformly over the entire surface of the detergent input lid 14. For this reason, when the detergent is placed on the detergent input lid 14, there is no residual detergent, the detergent can be flown, and the user's aesthetic appearance can be prevented.

[0022]

As described above, according to the first aspect of the present invention, there is provided a water injection device which is provided with a detergent charging lid so as to be openable and closable, and injects water into a washing tub from an outlet, and a front surface of the water injection device. The surface portion provided on the outer body is closely attached to the front wall of the outer body and attached to the outer body, and the lower end surface of the front wall is formed in an inverted convex shape, so that water injected from the water injection device with the detergent charging lid open is opened. Irrespective of the level of tap water pressure or the amount of water, it hits the front wall of the exterior body, and the lower end face of the front wall is formed in an inverted convex shape, so that the flow of water hitting the front wall is dispersed, Water can be uniformly poured from the lower side of the wall, and the detergent placed on the detergent charging lid can be uniformly flowed, so that detergent remaining can be prevented.

According to the second aspect of the present invention, the lower end surface of the front wall has a substantially straight portion in the center, and the curved portions are formed substantially symmetrically on both sides of the substantially straight portion. Water injected from the water injection device with the input lid open hits the substantially straight portion of the front wall, regardless of the level of tap water pressure and the amount of water, and was able to suppress the momentum of the water. Water is substantially symmetrically dispersed in the curved portions formed on both sides of the substantially straight portion, so that water can be uniformly injected from the outlet, and the detergent placed on the detergent charging lid can be uniformly flowed.

According to the third aspect of the present invention, a plurality of rectifying ribs are provided upright at the water inlet of the water injection device, and a gap between the lower end surface of the front wall formed in an inverted convex shape and the rectifying rib is substantially formed. Even if a large amount of water flows from the water injection device, it will hit the inverted convex part of the front wall at the center of the exterior body,
Since the pressure of the water is suppressed and the gap between the rectifying ribs of the water injection device is arranged almost evenly, the water can flow uniformly over the entire surface of the detergent charging lid, and the detergent is placed on the detergent charging lid. In this case, there is no residual detergent, and the detergent flows out, so that the user's aesthetic appearance can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a water supply device of a washing machine according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the washing machine provided with the water supply device of the washing machine.

FIG. 3 is a sectional view of a water supply device of a washing machine according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of a washing machine having a conventional water supply device of the washing machine.

[Explanation of symbols]

 Reference Signs List 3 washing and dewatering tub (washing tub) 13 water injection device 14 detergent input lid 15 outlet 20 face 21 exterior body 22 front wall

Continuation of the front page (72) Inventor: Mitsuo Kubo 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A water injection device for opening and closing a detergent input lid for injecting water into a washing tub from an outflow port, wherein a surface provided on a front surface of the water injection device is attached to a front wall of the exterior body and attached to the exterior body. A water supply device for a washing machine, wherein a lower end surface of the front wall is formed in an inverted convex shape. 2. The water supply device for a washing machine according to claim 1, wherein the lower end surface of the front wall has a substantially straight portion in the center, and curved portions are formed substantially symmetrically on both sides of the substantially straight portion. 3. A flow control device according to claim 1, wherein a plurality of rectifying ribs are provided upright at a water outlet of the water injection device so that a gap between a lower end surface of the front wall formed in an inverted convex shape and the rectifying ribs is substantially equal. The water supply device of the washing machine according to the above.