JPH02249597A - Detergent feeding device for washing machine - Google Patents

Abstract

PURPOSE:To prevent a detergent from remaining on a detergent receiving tray and to sufficiently feed a detergent by a method wherein the detergent receiving tray over the upper surface of which water flows to feed a detergent is inclined to a given low angle position and stopped thereat during the feed of a detergent, and thereafter, it is inclined to a high angle position. CONSTITUTION:When a time to feed a detergent comes, a crank 36 of a receiving tray drive unit 35 is rotated, a lever part 31 of a detergent receiving tray 29 is lifted up by means of a link 32 and inclined around an axle part 30. In this case, an engaging recessed part 37 is pushed up from below in a state to be engaged with an engaging protrusion 38 of a small cover 21 by means of the rear of the receiving tray to open the small cover 21. Thereafter, a motor 20 is energized in a slight delay, and the rotation force thereof is transmitted to a detergent delivery member 16 to rotationally drive the member. In which case, a powdery detergent 46 in a case 10 is moved forward to the interior of a detergent delivery part 15, and is dropped through an outlet part to the receiving tray 29. In which case, when the receiving tray 29 is moved to an inclination position (I) being 1/3-2/3 an inclination final position, inclination is stopped, and the receiving tray is held in a current position. Thereafter, after elapse of a set time, inclination of the receiving tray 29 is also restarted and moved to an inclination final position (II), and is held in this position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention] (Industrial Application Field) The present invention relates to a detergent supply device for a washing machine or the like that supplies detergent by water flowing onto a detergent receiver.

(Prior Art) Conventionally, for example, in a washing machine, 6j HQ of detergent
For example, the detergent receiver is provided with a relatively large downward slope toward the inside of the washing tub, and by flowing water onto the detergent receiver, the detergent dropped onto the detergent receiver is washed away by the water. , those designed to be supplied into the above-mentioned washing tub etc. are provided.

(Problem to be Solved by the Invention) However, in the above-mentioned conventional method, the flow of water on the detergent receiver is too good, so only water flows well, and the detergent cannot be supplied sufficiently.In other words, The problem was that detergent residue was left on the detergent receiver. Such problems are particularly likely to occur in areas with low water pressure or during periods of low water pressure, where the amount of water flowing is low.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to supply detergent by water flowing onto a detergent receiver, and to supply the detergent by flowing water onto the detergent receiver. To provide an excellent detergent supply device for a washing machine, etc., which can sufficiently perform detergent supply without causing any problems.

[Structure of the Invention] (Means for Solving the Problems) The detergent supply device for a washing machine or the like of the present invention has a detergent receiver which is supplied with detergent by flowing water onto its upper surface. The feature is that the device is tilted to a predetermined small angle position, temporarily stopped +l, and then tilted to a large angle position.

(Function) According to the above means, when the detergent is supplied, the detergent receiver first tilts to a predetermined small angle position and pauses (1).
Water becomes stagnant on the detergent receptor, increasing contact between the detergent and the water and promoting dissolution of the detergent by the water. In such a situation, the detergent receiver is then tilted to the final large angle position, so that detergent is dispensed without being left on the detergent receiver.

(Example) Hereinafter, one example in which the present invention is applied to a detergent supply device for a full 1-1 dynamic washing machine will be described with reference to the drawings.

First, in FIG. 2, C2] indicates the outer box of the entire fully automatic washing machine, and a washing tub (not shown) is installed inside. 2 is a cover attached to the outer box 1, for example, a bi-folded cover 3 is provided, an operation panel 4 is provided, and a rear panel 5 is installed. 6 and detergent 1 (supplying device 7 is installed).

The detergent (11, supply device 7 is mainly composed of a double case formed by an outer case 8 and an inner case) [7], as shown in FIG. ．．
C) is detachably attached to the rear panel 5 by means of a fixed claw 1 formed on the outer case 8 and a movable claw 13 formed on a push button 12 that can be moved out and placed. 14 is a lid for the entire case 10. Reference numeral 15 denotes a detergent delivery section formed at the end of the inner case 9, where a coiled detergent delivery member 1 is inserted.
6 is installed internally.

Reference numeral 17 denotes a detergent delivery member provided so as to engage with the detergent delivery member 16 and rotate. Reference numeral 18 denotes a shaft of the detergent delivery member 16, to which a motor 20 transmits rotational force via a selective transmission mechanism 19, for example, with two types of gears having different reduction ratios. On the other hand, 21 is a small lid whose upper part is pivoted to open and close the distal end outlet of the detergent delivery section 15, and a closing force is applied to this by a spring 22.

In contrast, 23 shown in FIG. 1 is a water supply valve 24 (fifth
This is a water injector that receives water supply from the washing machine (see figure) and injects it into the washing tub.
5, and a water inlet 20 at the bottom (i).
The water inlet 27 is connected to the water outlet 27. 28 is a water guide disposed in a gradual downward direction from the position immediately below the water inlet 27, and a shovel-shaped detergent receiver shown in Fig. 4 is located further rearward of this guide. The two bodies are pivoted so as to be vertically movable by a shaft 30 at the middle of their backs. Reference numeral 31 is a part of a lever extending further rearward from the shaft 30, and the tip of this lever is connected to a link 32. M at the bottom end of
I am doing ltN. The link 32 is attached to a crank 36 that is attached to the output shaft of a receiver drive unit 35 that includes a motor 33 (see FIGS. 5 and 6), a deceleration mechanism (not shown), and a solenoid 34 (see the same figure). ing. Reference numeral 37 denotes four engaging parts formed at the rear end of the detergent receiver 29, as shown in FIG.
8 from below.

And it is shown in Figure 5:39
The device is a micro combicoater of type L"C, to which signals are input manually from an input circuit 40 consisting of various switches. Also, from three microcomputers, signals are input to the receiver drive unit 35. A drive circuit 41 for driving the motor 33, a drive circuit 42 for driving the solenoid 34, a drive circuit 43 for driving the motor 20 for driving the detergent delivery member 16, and the water supply valve 24. Operation signals are output to the respective drive circuits 44 for performing the operation.

In addition to the motor 3 and the solenoid 34, there is a switch 45 connected in series with the motor 33 as shown in FIG. is in a closed state and is set to open when the crank 36 reaches a set upper limit position as described later.

Next, the operation of the above-mentioned 171W power source will be described.

First, assuming that detergent, especially powdered detergent 46, is stored in the case 10 (inner case 9) of the detergent supply device 7, when the detergent is supplied, first the water supply valve is opened as shown in FIG. 24 is energized.

Follow? Then, the water supply valve 24 is opened, and the water supplied through the water supply valve 24 is supplied into the washing tub from the water supply port 26 via the water supply device 23. At the same time, water is also dropped onto the water passage guide 28 through the water passage port 27, and this water flows backward on the water passage guide 28, and at this time, the front part is moved to the first position by the biasing force of a spring (not shown), etc. It falls onto the detergent receiver 29 which is in the upper position shown by the solid line in FIG.

Subsequently, the motor 3 of the receiver drive unit 35
3 and the solenoid 34 are energized, the crank 36 is rotated and the link 32 is pulled up. Therefore,
The detergent receiver 29 is also rotated or tilted about the shaft portion 30 by lifting up the lever part 31 by the link 32 so that the rear part is raised and the front part is lowered. In some cases, the engagement recess 37 is small M21.
The small fi 21 is opened by engaging with the engaging protrusion 38 from below and pushing it up. At this time, the portion of the engaging convex portion 38 that contacts the engaging concave portion 37 is sloped (not shown), and the upward displacement of the rear part of the detergent receiver 29 is converted into a displacement in the opening direction of the small lid 21. , to ensure that the opening is carried out smoothly.

After this, after a delay of about 2 to 3 seconds, the motor 20 for driving the detergent delivery member 16 is energized, and its rotational force is transmitted to the detergent delivery member 16 via the transmission mechanism 19 to rotate it, particularly in the spiral direction of the coil. Drive to rotate. Based on this, the powdered detergent 46 in the case 10 is advanced through the detergent delivery section 15 and is dropped onto the detergent receiver 29 from the outlet at the tip.

Here, when the detergent receiver 29 tilted as described above reaches a tilting position of 1/3 to 2/3 of the final tilting position (the position shown by the two-dot chain line in FIG. 1 [11]), the receiver drive unit The motor 33 of No. 35 is temporarily cut off, so that the detergent receiver 29 is stopped from tilting at its small angle tilting position, and is held at the stopped position by the solenoid 34, which is continuously energized.

Thereafter, when the set time elapses, for example, about 5 to 10 seconds, the motor 33 of the receiver drive unit 35 is energized again, and the tilting of the detergent receiver 29 is resumed and progresses. The detergent receiver 29 reaches the final tilting position indicated by the two-dot chain line in FIG. 1 [1]. Incidentally, when the detergent receiver 29 reaches the final tilting position, the crank 3
6 reaches the set upper limit position, the switch 45 in the receiver drive unit 35 is opened and the power supply to the motor 33 is cut off. However, the solenoid 34 remains energized, thereby holding the detergent receiver 29 in this final tilted position.

As described above, according to this embodiment, when the powdered detergent 46 is supplied,
The detergent receiver 29 is first tilted to a predetermined small angle position and then temporarily stopped, whereby the detergent receiver 2
The water flowing onto the detergent receiver 29 becomes in a situation where it stays on the detergent receiver 29, and the contact between the powdered detergent 46 and the water increases, and the dissolution of the powdered detergent 46 by the water progresses. In such a situation, the detergent receiver 29 is then tilted to the final large angle position, so that the powdered detergent 46 is not left on the detergent receiver 29 and is supplied into the washing tub. . Therefore, the powder detergent 46 can be sufficiently supplied even in low water pressure areas or during low water pressure hours, and washing performance and rinsing performance can be stably obtained.

Incidentally, after the set time has passed after the supply of powdered detergent 46 is started, the solenoid 34 of the receiver drive unit 35, the motor 20 for driving the detergent delivery member 16, and the water supply valve 24 are operated as shown in FIG. As a result, the supply of the powdered detergent 46 is stopped, the detergent receiver 29 returns to its original state, and the water supply is further stopped.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but is particularly applicable to the specific structure for tilting the detergent receiver 29, or to applications other than washing machines, such as dishwashers, and other points. However, modifications may be made as appropriate without departing from the spirit of the invention.

[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 provided with a detergent receiver, and allows water to flow through the detergent receiver -1-. When supplying detergent, the detergent receiver is
Tilt to a predetermined small angle amount of 11°"t and temporarily stop +1-
The feature is that it is tilted to a large angle position, which allows the necessary detergent to be supplied not only in low water pressure areas and during low water pressure times. Even with detergent detergents such as F, it is possible to perform the detergent without leaving any detergent residue on the detergent receiver, and the washing performance and rinsing performance are both stable. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG.
The figure is a perspective view of the entire fully automatic washing machine, Figure 3 is a vertical cross-sectional view of the detergent supply device in the washing machine, Figure 4 is a perspective view of the main parts of the machine, and Figure 5 is an electrical configuration diagram. , Fig. 6 is a circuit diagram of the receiver drive unit (j.1 diagram), Fig. 7 is a time chart at the time of substitute supply of detergent (detergent). A, 2 (1 is the motor, 2'3 is the water injector, 24 is the water supply valve, 2
8 is a water flow guide, 29 is a detergent receiver, 32 is a link, 3 is a motor, 35 is a receiver drive unit, 40 is a powdered detergent (detergent). Applicant: Co., Ltd. 1, Toshiba

Claims (1)

[Claims] 1. The device is equipped with a detergent receiver, and is configured to supply detergent dropped onto the detergent receiver by flowing water onto the detergent receiver; A detergent supply device for a washing machine or the like, characterized in that it is tilted to a predetermined small angle position, temporarily stopped, and then tilted to a large angle position.