JP2693571B2 - Detergent supply device for washing machines, etc. - Google Patents

Description

Description: [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 a detergent, particularly a powder detergent, to the inside of a device such as a washing machine.

(Prior Art) Conventionally, for example, in a washing machine, one in which a powder detergent is automatically supplied to a washing tub inside thereof has been considered.

This is one in which a powder detergent is stored in a predetermined detergent storage case and is supplied and discharged from a detergent outlet at the bottom of the detergent storage case, and the detergent outlet is normally left open.

For this reason, there is a problem that the stored powder detergent in the detergent storage case comes out from the detergent outlet at times other than when the detergent is being supplied, due to vibration during operation of the washing machine, especially when it is rinsed after washing. There is a problem in that, if it comes out or drops during dehydration, it adheres to the laundry and impairs its finish.

Therefore, it has been conventionally considered to provide a lid for opening the detergent outlet of the detergent storage case when the detergent is supplied and closing the detergent outlet when the detergent is not supplied.

(Problems to be solved by the invention) However, at the detergent outlet of the detergent storage case, the powder detergent is apt to stick to the powder detergent due to the moisture and humidity peculiar to the equipment using this detergent, such as a washing machine, and the aggregation thereof is There is still a problem in that the lid becomes incompletely closed by being sandwiched between the detergent outlet and the lid, and the powder detergent comes out from the gap and falls, thereby adhering to the laundry after washing.

The present invention has been made in view of the above circumstances, and an object thereof is to more reliably prevent adhesion of powder detergent, which is likely to come out from the detergent outlet of the detergent storage case to the laundry, except when the detergent is being supplied. It is an object of the present invention to provide an excellent detergent supply device for a washing machine or the like, which is capable of achieving the above and can achieve it with a rational structure.

[Constitution of the Invention] (Means for Solving the Problems) A detergent supply device for a washing machine or the like according to the present invention stores powder detergent in a detergent storage case, and supplies the detergent through a detergent outlet at the bottom of the detergent storage case. And a lid for opening and closing the detergent outlet, and a detergent supply chute that is displaced below the detergent outlet between a substantially horizontal state and a predetermined tilt state and is set in each state. The feature is that the displacement of the detergent supply chute is interlocked with the opening and closing of the lid, and a common drive device is provided for them.

(Operation) According to the above means, the detergent outlet of the detergent storage case can be closed with the lid except when the detergent is being supplied, and even if the powder detergent comes out between the detergent outlet and the lid in the closed state of the lid. , It can be prevented from dropping further downward by the detergent supply chute in a substantially horizontal state.

Further, since the lid is opened / closed in association with the displacement of the detergent supply chute, it is possible to operate them by a common drive device without individually requiring those drive devices.

(Embodiment) An embodiment in which the present invention is applied to a detergent supply device of a fully automatic washing machine will be described below with reference to the drawings.

First, in FIG. 2, reference numeral 1 denotes an outer box of the entire fully automatic washing machine, in which an inner tub 2 which is a washing tub and a dehydrating tub and an outer tub 3 which is a water receiving tub are arranged. An upper cover 4 is mounted on the outer box 1, a rear panel 5 is mounted on the upper cover 4, and a detergent supply device 6 is provided on the rear panel 5.

The detergent supply device 6, as shown in detail in FIG.
A detergent storage case 9 that is doubled by an outer case 7 and an inner case 8 is mainly configured, and a fixed claw 10 formed on the outer case 7 and a movable claw 12 formed on a push button 11 that can be retracted. Therefore, the entire detergent storage case 9 is replaced by the rear panel 5
It is detachably attached to. A lid 13 is provided for the entire detergent storage case 9.

On the other hand, 14 indicates a detergent delivery portion formed at the lower end of the inner case 8, a coil-shaped detergent delivery member 15 is provided therein, and a detergent stirring member that engages with the detergent delivery member 15 and rotates. 16 is arranged in the inner case 8. Detergent delivery member 15
The selective transmission mechanism 18 is provided in association with the shaft 17 at the left end in the figure, for example, by two types of gear sets having different reduction ratios.
The rotational force is transmitted from the motor 19 outside the detergent storage case 9 via the. On the other hand, the detergent delivery unit 14
In the figure, the right end portion is a detergent outlet 20, and a lid (hereinafter referred to as a small lid for the purpose of distinguishing from the lid 13) 21 is pivotally supported on the upper portion to open and close the detergent outlet 20. This small lid 21
A closing force is applied by a spring 22.

Further, in FIG. 2, reference numeral 23 denotes a water injector for receiving water from a water supply valve (not shown) and injecting the water into the inner tank 2. The water injector 23 has a large number of internal parts. It has a comb-shaped projection 24, a water injection port 25 in the lower part, and a water passage 26. A water guide 28 having stopper ribs 27 on its lower surface is pivotally supported at the front end portion thereof from a position directly below the water passage 26, and a detergent is further provided at a lower rear portion of the water guide 28. A supply chute 29 is provided. In this case, the detergent supply chute 29 has a generally shovel shape as shown in FIG. 1, and has guide ribs 30, 31, and 32 on both side portions and an intermediate portion thereof.
Further, a shaft portion 33 is provided so as to project outward from the back middle portion of the detergent supply chute 29, and the entire detergent supply chute 29 is pivotally supported by the shaft portion 33 so as to be vertically rotatable and displaceable. ing. Further, a lever portion 34 is further extended rearward from the shaft portion 33, and a tip end portion of the lever portion 34 is loosely fitted to a lower end portion of the link 35. The link 35 is attached to a crank 37 which is attached to an output shaft of a drive unit 36 which is a drive device including a motor, a speed reduction mechanism, a solenoid and the like (not shown).

Further, an engaging concave portion 38 is formed at the rear end portion of the detergent supply chute 29, and the engaging concave portion 38 is engaged with the engaging convex portion 39 projecting from the rear portion of the small lid 21 from below. . As shown in FIG. 4, the portion of the engaging convex portion 39 in contact with the engaging concave portion 38 is a slanted surface 40. Further, the detergent supply chute 29 is given an upward turning force by a spring 41 shown in FIGS. 1 and 2.

 Next, the operation of the above configuration will be described.

First, as shown in FIGS. 1 and 2, the powder detergent 42 is placed in the detergent storage case 9 (inner case 8) of the detergent supply device 6.
When the detergent is supplied, assuming that the water is stored in a predetermined amount, the water supply valve, the motor of the drive unit 36, and the solenoid are first energized. Therefore, the water supply valve is opened, and the water supplied through the water supply valve is supplied from the water injection port 25 into the inner tank 2 via the water injection device 23, and at the same time, reaches the water passage guide 26 from the water passage port 26. Further, it is supplied from the water guide 28 into the inner tank 2. Along with that, the crank 37 is rotated by the motor of the drive unit 36, and the link 35 is pulled up.
Therefore, the detergent supply chute 29 has also been the spring 41 until now.
As shown in FIG. 2, the spring force of the rear part causes the rear part to be tilted backward and the front part to be substantially horizontal, but the lever part 34 is pulled up by the link 35, and the rear part is centered on the shaft part 33. It is raised and pivoted or tilted so that the front portion is lowered. When the detergent supply chute 29 tilted in this way reaches the tilting final position shown in FIG.
The motor of 36 is de-energized, whereby the detergent supply chute 29 is stopped from rotating any further, and the solenoid of the drive unit 36, which is continuously energized, holds it at the stop position. Further, depending on the rear portion of the detergent supply chute 29 raised, the engaging concave portion 38 is formed on the engaging convex portion 39 of the small lid 21, especially on the inclined surface 40 thereof from the lower rear side as shown in FIGS. 6 and 7. Since it engages and presses this, the small lid 21 is the detergent outlet.
It is released from 20 and opened. Further, due to such tilting of the detergent supply chute 29, the water passage guide 28 has been pushed up by the detergent supply chute 29 via the stopper rib 27 as shown in FIG. The product is released from being pushed up by the detergent supply chute 29 and descends, and changes to the rearwardly downward inclined state shown in FIG. Therefore, the water reaching the water guide 28 from the water inlet 26 of the water injector 23 then flows backward on the water guide 28 as shown by the arrow in FIG. Fell on top, and this detergent supply chute 29
Flowing forward, especially between the guide ribs 30 and 32, the inner tank 2
Will be supplied within.

However, after this, for example, after a delay of about 5 seconds, the detergent delivery member
15 Drive motor 19 is energized and its rotational force is transmitted.
It is transmitted to the detergent delivery member 15 via 18 to rotate the detergent delivery member 15, and in particular, the coil is driven to rotate in the screwing direction. Therefore, based on this, the powdered detergent 42 in the case 9 is advanced in the detergent delivery section 14, and the small lid 21 at the tip is taken out from the opened detergent outlet 20 and on the detergent supply chute 29, which is also particularly It is dropped between the guide ribs 30 and 32. Therefore, the detergent supply chute 29 is in the tilting final position described above, receives the dropped powder detergent 42, and supplies it with the water flowing on the detergent supply chute 29 (between the guide ribs 30 and 32) which is the supply destination. Direct it to the inside of 2.

Then, if the set time has elapsed since the supply of the powder detergent 42 was started, a motor 19 for driving the detergent delivery member 15 and
The solenoid of the drive unit 36 and the water supply valve are respectively cut off, whereby the supply of the powder detergent 42 is stopped, and the detergent supply chute 29 is returned to the original state by the spring force of the spring 41, and therefore Accordingly, the small lid 21 is also returned to the closed state by the spring force of the spring 22, and the water supply is stopped.

Here, the small lid 21 that has been returned to the closed state is stored in the detergent storage case 9 due to vibrations and the like during operation of the washing machine.
42 effectively functions to prevent falling out of the detergent outlet 20 except when supplying detergent,
However, as described above, at the detergent outlet 20 part, the powder detergent 42 is easily solidified and sticking due to water and humidity peculiar to equipment such as a washing machine, and the solidified portion of the detergent outlet 20 and the small lid 21. Sandwiched between them, the closure of the small lid 21 becomes incomplete,
It is conceivable that the powder detergent 42 may come out and fall from the gap. On the other hand, the detergent supply chute 29 that has been returned to the original state described above has a rearward tilted state as described above,
The front part has a substantially horizontal state, of which the front part having a substantially horizontal state receives the powder detergent 42 falling out from the above-mentioned gap between the small lid 21 and the detergent outlet 20, and receiving it. It is possible to prevent the powder detergent 42 from adhering to the laundry after being washed, and to surely obtain a good finish of washing. Further, in this case, the detergent supply chute 29 also effectively functions to prevent water splashing from the inside of the inner tub 2 from reaching the detergent outlet 20, and therefore the detergent outlet chute 29. From the mass of powder detergent 42 in 20 parts,
It can be prevented more effectively.

Further, the small lid 21 is adapted to be opened and closed in conjunction with the displacement of the detergent supply chute 29, so that the drive unit thereof is not required individually, and the drive unit 36 which is a common drive unit Since it can be operated, the structure can be reasonably completed and the price can be provided at a low price.

The present invention is not limited to the embodiments described above and shown in the drawings. In particular, a specific structure for displacing the detergent supply chute 29 and a specific structure for discharging the powder detergent 42 from the detergent storage case 9 and Alternatively, other than the entire washing machine, for example, application to a dishwasher or the like, other points may be appropriately changed and implemented without departing from the gist.

[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 includes a lid for opening and closing the detergent outlet of a detergent storage case which stores powder detergent and delivers it from the detergent outlet. A detergent supply chute is provided below the detergent outlet, which is displaced between a substantially horizontal state and a predetermined tilting state and is set in each state, and the displacement of the detergent supply chute and the opening and closing of the lid are performed. It is characterized in that it is made to interlock and is provided with a common drive device for them, which allows the attachment of the powder detergent to the laundry which is likely to come out of the detergent outlet of the detergent storage case other than during the supply. To
It is possible to prevent more reliably, and the effect of being able to obtain a good finish of washing is achieved. Furthermore, even if the powder detergent is clogged at the detergent outlet portion, it can be prevented more effectively, and further In addition, it is possible to achieve them with a more rational structure, and it is possible to provide them at a lower cost.

[Brief description of the drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a perspective view of a main center portion, Fig. 2 is a vertical sectional side view of a detergent supply device portion in a fully automatic washing machine, and Fig. 3 is the same portion. A vertical front view of the whole, FIG. 4 is a cross-sectional plan view of an interlocking relationship portion between a lid and a detergent supply chute, and FIG. 5 is a vertical side view of the detergent supply device portion in a state different from that of FIG. 2; FIG. 7 is a cross-sectional plan view of the above-mentioned interlocking relation part in a state different from FIG. 4, and FIG. 7 is a plan view of a portion for supplying the detergent by sink. In the drawings, 6 is a detergent supply device, 9 is a detergent storage case, 20 is a detergent outlet, 29 is a detergent supply chute, 36 is a drive unit (driving device), 38 is an engaging concave portion, 39 is an engaging convex portion, and 40 is an engaging convex portion. The beveled surface, 42 indicates a powder detergent.

Claims (1)

(57) [Claims] 1. A powder detergent is stored in a detergent storage case so as to be supplied and discharged from a detergent outlet at a lower portion of the detergent storage case. A lid for opening and closing the detergent outlet is provided and the detergent outlet A detergent supply chute that is displaced between a substantially horizontal state and a predetermined tilt state below and is set in each state is provided, and the displacement of the detergent supply chute and the opening and closing of the lid are interlocked with each other. On the other hand, a detergent supply device such as a washing machine having a common drive device.