JPH0642631Y2 - Detergent supply device for washing machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a detergent supply device for a washing machine or the like for supplying detergent, particularly powder detergent, to a detergent receiver of a washing machine or the like.

(Prior Art) Conventionally, as a detergent supply device such as a washing machine used for supplying this kind of powder detergent, as shown in, for example, Japanese Patent Publication No. 54-43827, the detergent is stored and stored in a hopper as a detergent storage section. There is a method in which the powdered detergent thus prepared is dispensed in fixed amounts, temporarily stored and then dispensed.

However, in this product, the powder detergent has a circumstance that it tends to harden due to moisture and humidity peculiar to equipment handling water such as a washing machine before it is supplied. However, there is a problem in that the detergent is often clogged, and smooth and reliable supply cannot be performed.

On the other hand, for example, as shown in Japanese Patent Publication No. 42-18769, there is a method in which the powder detergent stored and stored in the hopper is delivered by the rotation of a screw-shaped delivery member.

According to this, it is possible to rub the powdery detergent, which is easily solidified as described above, by rubbing it with the screw-shaped delivery member while finely supplying it, and thus it is possible to supply it more smoothly and reliably than the above-mentioned one.

However, even in this case, a considerably large amount of detergent adheres to the surface of the screw-shaped delivery member, so that it cannot be sufficiently and reliably supplied.

In addition, in any of the above cases, the powder detergent is apt to stick to the outlet portion, and there is the trouble of having to clean it relatively frequently.If this is not done, the amount of sticking will increase and the detergent output will increase. Is worse, and as a result,
There was also a problem that the detergent could not be supplied smoothly and reliably.

(Problems to be Solved by the Invention) As described above, in any of the conventional ones, the powder detergent cannot be supplied sufficiently smoothly and reliably, and further, the powder detergent is annoyed with sticking at the outlet portion. It was.

The present invention has been made in view of the above-mentioned circumstances, and therefore an object thereof is to supply a powder detergent sufficiently smoothly and reliably, in particular, to prevent sticking at the outlet portion thereof, and further The purpose of the present invention is to provide a detergent supply device such as an excellent washing machine that can achieve it with a more rational structure.

[Means for Solving the Problem] (Means for Solving the Problem) A detergent supply device for a washing machine or the like according to the present invention is a detergent storage device for accommodating and storing a powder detergent, the detergent being oriented so that the outlet faces the detergent receiving portion. A detergent delivery member is provided, the detergent delivery member having a coil shape is rotatably accommodated and arranged in the detergent delivery portion, and a drive device for rotatably driving the detergent delivery member is provided, and a tip end portion of the detergent delivery member is provided. It is characterized in that a portion extending substantially linearly in the axial direction is provided along the inner peripheral surface of the outlet portion of the detergent delivery portion.

(Operation) According to the above means, the detergent delivery member has a coiled configuration, and it is possible to deliver the powder detergent in the detergent delivery portion while finely delivering it, and to reduce the contact area with the powder detergent.

Then, at the outlet portion, a portion of the distal end portion of the detergent delivery member, which extends substantially linearly, rotates along the inner peripheral surface of the outlet portion as the detergent delivery member rotates, and prevents the detergent from sticking. . In this case, if there is a sticky detergent, scrape it off.

(Embodiment) An embodiment in which the present invention is applied to a detergent supply device for a washing machine will be described below with reference to FIGS. 1 to 5.

First, a washing machine main body 1 whose whole view is shown in FIG. 2 has an outer shell, and an outer box 2 covered with an upper cover 3,
On the upper cover 3, a lid 4 is pivotably installed so as to be openable and closable, and an operation panel 5 is provided at a front edge portion in front of the lid 4,
The joint portion 6 is provided at the rear edge portion. In the trapezoidal portion 6, a hopper set opening 7 is formed on the left side in the figure, and the hopper set opening 7 is continuous with the hopper set opening 7 and has a V-shaped cross section as shown in FIG. As shown in FIG. 1, a hopper receiving portion 8 that opens is formed.

In the hopper receiving portion 8, a hopper 9 which is a detergent storage portion whose lower portion is formed in a V-shaped cross section in conformity with the hopper receiving portion 8 and whose both side surfaces are also inclined is accommodated through the hopper set opening 7. At the same time, the claw portion 10 formed on the left side portion of the hopper 9 in FIG. 1 is engaged with the left side edge portion of the hopper set opening 7,
The elastic claw portion 12 having the operation protrusion 11 formed on the right side portion is elastically engaged with the right side edge portion of the hopper set opening 7 to form the hopper 9
I am trying to prevent the fall of.

On the other hand, at the top opening of the hopper 9, the lid 13 is attached to the rear end shaft 14
(Refer to Fig. 3), it is pivotally installed so that it can be opened and closed.
Inside the hopper 9, there is provided a stirring member 18 having a plurality of projections 15 projecting in the front-rear direction, a plurality of projections 16 projecting outwardly around the periphery, and also having a plurality of holes 17, and a shaft 19 for supporting the shaft 19.
It is rotatably supported by the front and rear of the. Further, at the lower end portion of the hopper 9, a detergent delivery portion 20 is formed by extending from the inside of the hopper 9 exclusively to a tubular portion projecting to the outside on the right side in FIG. 1, and an outlet 21 at the tip thereof is provided inside the platform portion 6. It faces the upper surface of the receiving plate 22 disposed at, especially, the detergent receiving portion 23 at the center thereof.

The upper surface of the receiving plate 22 also serves as a water supply channel, and as shown in FIG. 4, it is provided so as to gradually descend toward the supply port 24 at the tip facing the washing tub (not shown) in the outer box 2. In addition, the water supply valve 25 is disposed on the uppermost rear end.

Reference numeral 26 denotes a detergent delivery member rotatably disposed over substantially the entire length of the detergent delivery section 20. The detergent delivery member has a coil shape, and one of the protrusions 16 of the stirring member 18 is attached to the detergent delivery member 26. Engaged. And again, this detergent delivery member 26
As shown in FIG. 5 and FIG. 1, a portion 27 extending substantially linearly in the axial direction along the inner peripheral surface of the outlet 21 portion of the detergent delivery portion 20 is provided at the tip portion of the. ing.

In addition, a transmission shaft 28 is attached to the end of the detergent delivery member 26 opposite to the outlet 21, and the transmission shaft 28 is attached to the detergent delivery unit 20.
It is inserted into the part on the opposite side of the outlet 21 and supported.
Reference numeral 29 denotes a motor, which is a driving device attached to the inner surface of the left side portion of the platform 6 in FIG. Transmission mechanism 31
Are connected by.

Now, in the case of the one configured as described above, when using it, first open the lid 13 of the hopper 9 as shown by the chain double-dashed line in FIG. 3, put the powder detergent 32 in the hopper 9 in this state, and then By closing the lid 13, the powder detergent 32
Are stored in the hopper 9. Then, the necessary switches on the operation panel 5 are operated to wash. Then, the water supply valve 25 and the motor 29 are energized prior to the start of washing, and the energized motor 29 is activated, so that its rotational force is transmitted from the rotary shaft 30 to the transmission shaft 28 via the transmission mechanism 31. It is transmitted to the detergent delivery member 26 in the form of a coil from the transmission shaft 28. Thus, the detergent delivery member
26 is rotatably driven, especially in the so-called screwing direction, and the detergent delivery member 26 rotatably driven in such a manner moves in contact with the powder detergent 32 in the hopper 9, and by the contact, the powder detergent. Outlet 21 in the detergent delivery part 20 while making 32 fine
Toward exit, and from its exit 21 see Figures 1 and 4
Put out as indicated by arrow A in the figure.

Then, the powder detergent 32 that has been dispensed is the detergent receiving portion on the receiving plate 22.
In the detergent receiving portion 23, the fourth water is supplied through the water supply valve 25 which is energized and opened together with the motor 29.
It is made to flow by the water supplied as indicated by an arrow B in the figure, and is supplied from the supply port 24 into the washing tub (not shown) together with the water.

Further, when the powder detergent 32 is supplied as described above, at the outlet 21 portion of the detergent delivery part 20, the portion 27 extending substantially linearly at the tip of the detergent delivery member 26 of the detergent delivery member 26 of the detergent delivery member 26. With rotation, it rotates along the inner peripheral surface of the outlet 21 portion of the detergent delivery section 20, thereby functioning to prevent the powder detergent 32 from sticking. Further, in this case, if there is detergent that has already stuck, the portion 27 extending substantially linearly at the tip of the detergent delivery member 26 functions to scrape it off.

Further, when the detergent delivery member 26 is rotationally driven as described above, the stirring member 18 having one of the protrusions 16 engaged with the detergent delivery member 26 engages the protrusion 16 with the detergent delivery member 26 sequentially. The powder detergent 32 in the hopper 9 is agitated by the rotation so as to be combined with each other, and the powder detergent 32 is smoothly introduced into the detergent delivery section 20.

As described above, according to the present embodiment, the powder detergent 32 stored and stored in the hopper 9 can be delivered by the rotation of the detergent delivery member 26 having a coil shape, and the contact with the rotating detergent delivery member 26 can be achieved. Thus, the powder detergent 32 can be delivered while being finely divided, and the detergent delivery member 26 is made of a wire to form a coil having a hollow portion at the center, so that a flat plate is spirally wound around the shaft. The contact area with the powder detergent 32 can be made extremely smaller than that of a conventional delivery member having a shape, and therefore, the amount of the powder detergent 32 adhering to the surface thereof is very small, or may be none. The detergent 32 can be supplied sufficiently smoothly and reliably without being clogged with the detergent 32.

In addition to that, at the outlet 21 portion of the detergent delivery section 20, a portion 27 of the distal end of the detergent delivery member 26 extending in a substantially straight line is
With the rotation of the detergent delivery member 26, the inner peripheral surface portion of the outlet 21 portion is rotated to prevent sticking of the powder detergent 32, or to function to scrape off the stuck powder detergent 32. The powder detergent 32 does not stick to it anymore, and the trouble of cleaning the powder detergent 32 can be saved, and the detergent can be kept out for a long time. Therefore, the powder detergent 32 can be supplied more smoothly and reliably. is there.

In this case, since the detergent delivery member 26 has a coil shape, the tip of the detergent delivery member 26 is extended in a substantially straight line shape to obtain the effect of preventing the powder detergent 32 from sticking. That is, the effect can be obtained with a more rational structure, so that the increase in price can be suppressed to a smaller extent.

Here, FIGS. 6 and 7 show different embodiments of the present invention. As an alternative detergent delivery member to the detergent delivery member 26, the outer diameter at the outlet 21 of the detergent delivery section 20 is the powder detergent.
In order to avoid compaction of 32, a detergent delivery member 33 having a diameter smaller than the inner diameter of the outlet 21 is used, and a portion 34 extending substantially linearly at the tip of the detergent delivery member 33 is used.
Of the detergent delivery member 26 as described above.
Like the substantially linearly extending portion 27 of the tip, it is provided so as to extend in the axial direction along the inner peripheral surface of the outlet 21 portion of the detergent delivery section 20, and by doing so,
As described above, the outer diameter at the outlet 21 portion of the detergent delivery section 20
Even in the case where the detergent delivery member 33 whose size is smaller than the inner diameter of the 21 part is used, the same operational effect as described above can be obtained.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and one of them is, in particular, the substantially linearly extending portions 2 of the detergent delivery members 26 and 33, respectively.
Both 7,34 may be provided with a slight inclination or curved shape. Further, the stirring member 18 may be provided only with one that requires it, and the drive device for rotationally driving the detergent delivery member 26 is not limited to the motor 29. For example, a water turbine that operates in a water supply passage. And so on.
In addition, the detergent receiving portion is not limited to the detergent receiving portion 23 on the receiving plate 22,
It may be in the washing tub, that is, powder detergent 32
May be supplied directly into the washing tub. And, as a whole, the present invention is not limited to the washing machine, but can be similarly applied to all the devices that function using the powder detergent such as the dishwasher.

[Effects of the Invention] As is clear from the above description, the detergent supply device for a washing machine or the like of the present invention is such that the outlet faces the detergent receiving portion at the lower end of the detergent storage portion that stores and stores the powder detergent. With a delivery unit,
A coil-shaped detergent delivery member is rotatably accommodated and arranged in the detergent delivery section, and a drive device for rotationally driving the detergent delivery member is provided, and an outlet of the detergent delivery section is provided at the tip of the detergent delivery member. The feature is that a portion extending in a substantially linear shape in the axial direction is provided along the inner peripheral surface of the portion so that the powder detergent can be supplied sufficiently smoothly and reliably. , In particular, it does not cause stickiness at the outlet of the detergent delivery section, and therefore, the trouble of cleaning the same can be omitted, and it can be achieved with a more rational structure, and the price increase can be reduced. It has various excellent effects such as suppression.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a vertical sectional front view of a main part, FIG. 2 is an overall perspective view of a washing machine, and FIG. FIG. 4 is a vertical sectional side view of the portion, FIG. 4 is a vertical sectional side view of the same portion at a sectional position different from that of FIG. 3, and FIG. It is a figure. 6 and 7 are an enlarged vertical side view and a front view, respectively, of the main central portion showing a different embodiment of the present invention. In the figure, 9 is a hopper (detergent storage section), 20 is a detergent delivery section, 21
Is an outlet, 23 is a detergent receiver, 26 is a detergent delivery member, 27 is a portion of the detergent delivery member that extends in a substantially straight line, 29 is a motor (driving device), 32 is powder detergent, and 33 is a detergent delivery member. , 34 designates a portion of the detergent delivery member extending in a substantially straight line.

Claims (1)

[Scope of utility model registration request] 1. A detergent storage unit for supplying a powder detergent to a detergent receiving unit of a washing machine or the like, and a detergent storage unit for storing and storing the powder detergent, and an outlet at the lower end of the detergent storage unit. A detergent delivery part provided facing the receiving part, a coil-shaped detergent delivery member rotatably housed in the detergent delivery part, and a drive provided to rotationally drive the detergent delivery member. A device, wherein a portion extending substantially linearly in the axial direction along the inner peripheral surface of the outlet portion of the detergent delivery portion is provided at the distal end portion of the detergent delivery member. Detergent supply device for washing machines.