JP2007275327A - Detergent injecting device of washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent injecting device of a washing machine, which has a simple structure that improves the washing performance without extending the time for washing process by injecting powder detergent into a washing tank after dissolving the powder detergent inside the detergent case, while preventing a detergent case from being clogged with the powder detergent inside. <P>SOLUTION: A powder detergent injecting section 37 of a detergent case 29 is formed with its back surface wall 37a formed lower than a front surface wall 37b and right and left surface walls 37c while a bottom surface 37d tilting downward from the front surface wall 37b toward the back surface wall 37a. A slit 38 is provided at a back corner part formed by the bottom surface 37d and the back surface wall 37a. A water filling case 31 is made of ribs 40 partly inserted into the slit 38 in a state that the detergent case 29 is contained. The detergent device has a simple structure and improves washing performance without extending the time for washing process while preventing the detergent case from being clogged with the powder detergent inside. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a detergent charging device for a washing machine that mainly loads powder detergent into a washing tub.

  Conventionally, a detergent input device of a washing machine has poured the supplied detergent into the washing tub together with the poured water (for example, see Patent Document 1).

  FIG. 4 shows a general washing machine detergent charging device, and its configuration will be described below.

  As shown in the figure, the detergent case 1 has the bottom surface 3 of the detergent charging part 2 inclined rearward and downward with a substantially constant inclination, and a large opening 4 is provided at the rear part so that the detergent flows out. The detergent case 1 is housed in a water pouring case 5 so as to be freely drawn out. The water pouring case 5 is provided with a water pouring part 6 having a plurality of water pouring holes 6 a above the detergent case 1, and the rear of the detergent case 1 from the rear to the front. A flowing water surface 7 inclined downward is provided, and a water inlet 8 is provided in front. Water is supplied to the water injection section 6 through a water supply path 9, and the supplied water is sprinkled on the detergent charging section 2 of the detergent case 1 through a plurality of water injection holes 6 a, and the water is on the bottom surface 3. The water flows backward, falls onto the water flow surface 7 of the water injection case 5 from the opening 4, flows forward on the water flow surface 7, and is poured into the washing tub (not shown) from the water injection port 8. Yes.

  In the above-described configuration, when the detergent case 1 is pulled out, the powder detergent 10 is introduced into the detergent charging unit 2, and water is supplied to the water injection unit 6 through the water supply path 9 in a state where the detergent case 1 is stored in the water injection case 5. The supplied water is sprinkled on the powder detergent 10 introduced into the detergent introduction part 2 through the plurality of water injection holes 6a, and the powder detergent 10 flows rearward on the bottom surface 3 together with water, and flows in the water injection case 5 from the opening 4. It falls on the surface 7, flows forward on the flowing water surface 7, and is put into the washing tub through the water inlet 8.

After that, when the water level in the washing tub reaches a predetermined water level, the water supply is stopped, the pulsator (not shown) provided at the inner bottom of the washing tub is rotated, and the water and the laundry are agitated. The detergent 10 is dissolved in water, and the dissolved detergent components are allowed to act on the dirt of the laundry to execute washing.
Japanese Patent Application Laid-Open No. 08-019691

  However, in such a conventional washing machine detergent loading device, the charged powder detergent 10 is directly poured into the washing tub together with the poured water. Therefore, in order for the detergent component to act on the dirt of the laundry, it is necessary to sufficiently dissolve the powder detergent 10 in the washing water in the washing tub, and therefore, sufficient cleaning performance cannot be obtained. there were. Further, in order to obtain a sufficient cleaning performance, it is necessary to lengthen the washing process time in order to dissolve the powder detergent, which is inconvenient.

  The present invention solves the above-mentioned conventional problems, and with a simple configuration, the powder detergent put in the detergent case is dissolved in the detergent case and put into the washing tub, thereby reducing the time of the washing process. It is an object of the present invention to provide a detergent charging device for a washing machine that improves the cleaning performance without increasing the length.

  In order to solve the above-mentioned conventional problems, a detergent charging device for a washing machine according to the present invention includes a detergent case having a detergent charging portion formed in a box shape, and the detergent case is retractably housed from a water supply path. On the flowing water surface in which the supplied water is sprinkled on the detergent charging part from one or a plurality of water injection holes of the water pouring part provided above and the water flowing out from the detergent charging part is inclined downward from the rear to the front And a water pouring case configured to be poured into the washing tub from a water pouring port provided in front of the detergent, and the detergent charging portion has a rear wall formed lower than the front wall and the left and right wall, and a bottom surface. It is formed to be inclined downward from the front wall toward the rear wall, and is provided with a slit-like hole in a rear corner formed by the bottom surface and the rear wall. It is obtained by forming a rib, which is partially inserted into paid by said slit-shaped hole in the state.

  In this way, with a simple configuration, the powder detergent put into the detergent case is dissolved in the detergent case and put into the washing tub, thereby improving the washing performance without lengthening the washing process time. In the detergent case, the powder detergent is prevented from being clogged.

  The washing machine detergent charging device of the present invention has a simple configuration, and dissolves the powder detergent charged in the detergent case in the detergent case and puts it in the washing tub, thereby extending the time of the washing process. In addition, the cleaning performance can be improved and the powder detergent can be prevented from being clogged in the detergent case.

  According to a first aspect of the present invention, there is provided a detergent case having a detergent charging portion formed in a box shape, and one of a water injection portion in which the detergent case is housed so that the detergent case can be pulled out forward and water supplied from a water supply path is provided above or Water sprayed from the plurality of water injection holes onto the detergent charging part and the water flowing out of the detergent charging part flows on the flowing water surface inclined downward from the rear to the front, and is poured into the washing tub from the water inlet provided at the front. The detergent injection part is formed such that the rear wall is formed lower than the front wall and the left and right wall walls, and the bottom surface is inclined downward from the front wall toward the rear wall. A slit-like hole is formed in a rear corner formed by the bottom surface and the rear wall, and the water injection case is partially inserted into the slit-like hole in a state where the detergent case is accommodated. With a simple configuration, the detergent detergent in the detergent case is dissolved in the detergent case and put into the washing tub. It is possible to improve the cleaning performance without increasing the time and to prevent clogging of the powder detergent in the detergent case.

  In the second invention, in particular, in the first invention, the slit-shaped hole is formed from the rear wall to the bottom surface of the detergent charging portion, and the rib is formed from the rear surface to the flowing water surface of the water injection case. Thus, the rib can be supported on two sides, the strength can be improved, and the slit-like hole is also provided on the bottom surface, so that it can be drained reliably.

  According to a third aspect of the present invention, in particular, in the first or second aspect of the present invention, the dimension of the gap between the slit-like hole and the rib is such that water does not adhere due to surface tension, so that the water in which the detergent is dissolved is the gap. In this case, it is possible to prevent the problem that the detergent component adheres to the part and causes clogging, or the remaining water falls on the laundry after dehydration and wets the laundry again. .

  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.

(Embodiment 1)
FIG. 1 is a side sectional view of a washing machine having a detergent charging device according to Embodiment 1 of the present invention, FIG. 2 is a side sectional view of an essential part of the detergent charging device, and FIG. It is a side perspective view.

  In FIG. 1, a main body 11 of a washing machine supports a water tank 13 by a suspension 12 in a suspension and vibration-proof manner. The washing / dehydrating shaft 14 is hollow and has a biaxial structure. The washing and dewatering tub (washing tub) 15 has a number of dewatering holes 16 on the side wall, a fluid balancer 17 at the upper part of the inner periphery, and a pulsator 18 at the center bottom. The transmission mechanism 19 includes a reduction gear (not shown) during washing and a switching clutch (not shown) for the washing / dehydrating shaft 14 and a brake (not shown) for stopping the washing / dehydrating tub 15 during dehydration. ) Is built-in.

  The motor 20 is attached to the bottom of the water tank 13, and the motor-side pulley 21 and the mechanical-side pulley 22 transmit the power of the motor 20 to the washing / dehydrating shaft 14 via the belt 23.

  An upper frame 24 is disposed on the upper portion of the main body 11, and a laundry input / exit 25 for communicating the washing and dewatering tub 15 and the outside is formed at a substantially central portion of the upper frame 24, and the laundry The inlet / outlet port 25 is covered with a lid 26 so as to be freely opened and closed. A control device 27 is arranged inside the upper frame 24 on the front side, and a water supply valve 28 that can be opened and closed by electromagnetic force is arranged inside the rear frame. At the rear of the laundry loading / unloading port 25, a detergent case 29 is housed so that the detergent case 29 can be pulled out forward, and a detergent filling device 32 comprising a water injection case 31 communicating with the water supply valve 28 and the hose 30 is disposed.

  The configuration of the detergent charging device 32 will be described with reference to FIGS. FIG. 2A shows a state where the detergent case 29 is pulled out from the water injection case 31, and FIG. 2B shows a state where the detergent case 29 is stored in the water injection case 31.

  The water injection case 31 is provided with a water injection part 33 in the upper part, and this water injection part 33 is composed of a lower water injection part 33a constituting the lower part and an upper water injection part 33b covering the upper part, and the lower water injection part 33a and the upper water injection part 33b are provided. By welding and fixing, a water injection portion path 33c communicating with the water supply valve 28 is formed. One or a plurality of small water injection holes 34 are provided in the water injection portion path 33c. In the state where the detergent case 29 is accommodated in the water injection case 31, a flowing water surface 35 inclined downward from the rear to the front is provided below the detergent case 29, and a water inlet 36 is provided in the front.

  As shown in FIG. 3, the detergent case 29 is composed of a powder detergent charging part (detergent charging part) 37 for charging powder detergent and a softening agent charging part 41 for charging softener. .

  The powder detergent charging part 37 is formed in a box shape, and the rear wall 37a is formed lower than the front wall 37b and the left and right wall 37c. Thereby, the water overflowing from the powder detergent charging part 37 flows down from the upper end of the rear wall 37a onto the water flow surface 35 of the water injection case 31. Further, the bottom surface 37d of the powder detergent charging portion 37 is inclined rearward and downward with a substantially constant inclination, and a plurality of slit-like holes 38 extending in the vertical direction from the rear wall 37a to the bottom surface 37d are provided in the rear portion. ing.

  The water injection case 31 is provided with a plurality of ribs 40 extending in the vertical direction from the rear surface 39 to the flowing water surface 35 at positions corresponding to the slit-shaped holes 38. When the detergent case 29 is accommodated in the water injection case 31, the rib 40 is partially inserted into the slit-shaped hole 38 and protrudes into the powder detergent charging portion 37. At this time, a gap of about 1.5 mm, for example, is provided between the inner periphery of the slit-shaped hole 38 and the rib 40. Due to this gap, water does not remain between the inner peripheral portion of the slit-like hole 38 and the rib 40 due to surface tension.

  The softening agent charging portion 41 is formed in a box shape, and a cylindrical portion 41a having a drain tube is provided therein, and a substantially concave cap 42 is put on the cylindrical portion 41a to form a siphon structure that discharges residual water. is doing.

  About the detergent injection | throwing-in apparatus 32 comprised as mentioned above, the operation | movement and an effect | action are demonstrated. The user pulls out the detergent case 29 from the water pouring case 31, puts a predetermined amount of powder detergent into the powder detergent pouring portion 37 of the water pouring case 31, and throws the soft finish into the softening agent throwing portion 41, and then the detergent The case 29 is accommodated in the water injection case 31, and the start switch provided in the control device 27 is turned on. Thereby, the water supply valve 28 is opened, and water flows into the water injection section path 33 c through the hose 30 communicating with the detergent charging device 32. The water that has flowed into the water injection section path 33c is vigorously discharged from one or a plurality of small water injection holes 34.

  The water released vigorously is sprinkled into the powder detergent charging unit 37 in which the powder detergent is charged. As a result, water accumulates in the powder detergent charging unit 37 and is stirred in the water in which the powder detergent accumulates due to the momentum of the water and dissolved in the water. The water in which the detergent is dissolved climbs over the upper end of the rear wall 37 a, flows down to the water injection case 31, flows on the water flow surface 35, and is discharged from the water injection port 36 into the washing and dewatering tub 15. Then, when the water level in the water tank 13 reaches a predetermined water level, the water supply valve 28 is closed. Thereafter, the remaining water accumulated in the powder detergent charging portion 37 is discharged to the water injection case 31 through the gap between the inner peripheral portion of the slit-shaped hole 38 and the rib 40, flows on the water flow surface 35, and is washed from the water injection port 36. It is discharged into the dehydration tank 15.

  Thereafter, the pulsator 18 provided at the center bottom of the washing and dewatering tank 15 is rotated, and the water and the laundry in which the detergent is dissolved are agitated so that the dissolved detergent component acts on the dirt on the laundry, and the washing process is performed. Execute. Thus, since the powder detergent is dissolved in water at the start of the washing process, it is not necessary to lengthen the washing process time for dissolving the detergent, and the washing performance can be improved in a short time.

  Thereafter, the process proceeds to a rinsing process, and in the final rinsing process, water is poured into the softening agent charging unit 41, so that the softening agent charged therein flows out and flows on the water surface 35 and is washed from the water pouring port 36. It is discharged into the cum dewatering tank 15. When the water level in the water tank 13 reaches a predetermined water level, the water supply is terminated, the pulsator 18 is rotated, and the final rinsing process is executed. At this time, the remaining water remaining in the softener charging portion 41 is discharged by the siphon structure constituted by the cylindrical portion 41a and the substantially concave cap 42. Thereafter, a final rinsing process for a predetermined time is executed, and in the final dewatering process, the washing and dewatering tub 15 is rotated at a high speed to discharge the water of the laundry. After performing a dehydration process for a predetermined time, a series of washing, rinsing and dehydration processes are completed.

  The user repeats the above operation when performing the next series of washing, rinsing, and dehydration processes. That is, after the water injection is completed, the water accumulated in the powder detergent charging portion 37 is discharged to the water injection case 31 through the gap between the inner peripheral portion of the slit-like hole 38 and the rib 40. In this case, for example, when the water pressure of tap water is weak, when the state in which the powder detergent cannot be completely dissolved in the water during water injection occurs, the undissolved amount of the powder detergent is between the inner periphery of the slit-shaped hole 38 and the rib 40. However, the rib 40 enters and exits the slit-shaped hole 38 because the user pulls out the detergent case 29 from the irrigation case 31 and stores it again during the next washing. The slit-shaped hole 38 is cleaned by the rib 40. It is possible to prevent a problem that the slit-shaped hole 38 is clogged and does not drain.

  Further, the slit-shaped hole 38 is formed from the rear wall 37a to the bottom surface 37d of the powder detergent charging portion 37, and the rib 40 is formed from the rear surface 39 to the flowing water surface 35 of the water injection case 31. The strength can be improved. Moreover, since the slit-shaped hole 38 is provided also in the bottom face 37d, it can drain reliably.

  Between the inner peripheral part of the slit-shaped hole 38 and the rib 40, a gap of about 1.5 mm is provided on the entire circumference, for example, and the gap between the inner peripheral part of the slit-shaped hole 38 and the rib 40 is provided. In this case, the water does not remain due to surface tension, so the water in which the detergent is dissolved remains in the gap, causing detergent components to adhere to the area, causing clogging, and washing after the dehydration is completed. It is possible to prevent the problem that the remaining water falls on the item and wets the laundry again.

  In the above embodiment, a plurality of slit-like holes 38 and ribs 40 are provided. However, even if each of the slit-like holes 38 and one rib 40 is provided, the same effect can be obtained as long as the water can be drained from the gap. .

  As described above, the detergent charging device of the washing machine according to the present invention has a simple configuration and dissolves the powder detergent charged in the detergent case in the detergent case and puts it in the washing tub. This is useful as a detergent charging device for a washing machine that improves the cleaning performance and prevents clogging of the powder detergent in the detergent case without increasing the time.

Side sectional view of a washing machine having the detergent charging device according to Embodiment 1 of the present invention. (A) Main part side sectional view in a state where the detergent case of the detergent charging device is pulled out from the water injection case (b) Main part side sectional view in a state where the detergent case of the detergent charging device is stored in the water injection case Perspective view of essential parts of the detergent charging device Side sectional view of a conventional washing machine detergent charging device

Explanation of symbols

15 Washing and dewatering tub (washing tub)
28 Water supply valve (water supply route)
29 Detergent case 30 Hose (water supply route)
31 Water injection case 32 Detergent input device 33 Water injection part 34 Water injection hole 35 Water flow surface 36 Water injection port 37 Powder detergent input part (detergent input part)
37a Rear wall 37b Front wall 37c Left and right wall 37d Bottom 38 Slit-shaped hole 40 Rib

Claims (3)

A detergent case having a detergent charging part formed in a box shape, and one or a plurality of water injection holes of a water injection part in which the detergent case is housed so that it can be pulled out forward and water supplied from a water supply path is provided above The water sprinkled on the detergent charging part and the water flowing out from the detergent charging part flowed on the water surface inclined downward from the rear to the front, and was poured into the washing tub from the water inlet provided in the front. A water injection case, and the detergent charging portion is formed such that a rear wall is formed lower than the front wall and the left and right wall walls, and a bottom surface is formed to be inclined downward from the front wall toward the rear wall. A slit-like hole is provided in a rear corner portion formed by the rear wall, and the water injection case has a rib that is partially inserted into the slit-like hole in a state where the detergent case is accommodated. Detergent dosing device of the washing machine. The detergent charging device for a washing machine according to claim 1, wherein the slit-shaped hole is formed from the rear wall to the bottom surface of the detergent charging portion, and the rib is formed from the rear surface to the flowing water surface of the water injection case. The detergent charging device for a washing machine according to claim 1 or 2, wherein the dimension of the gap between the slit-shaped hole and the rib is such that water does not adhere due to surface tension.

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