JPH0530710Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an automatic detergent dosing device for a washing machine that automatically dispenses detergent into a tub.

Prior Art For example, a conventional one-tub centrifugal dewatering washing machine has a configuration shown in FIG. That is, an outer box 2 is provided on the top of the main body 1 to cover its periphery. An automatic detergent dispenser 3 is disposed on the top of the outer box 2, and a control device automatically opens and closes the lid 4 to push the detergent in the detergent container case 5 through the detergent extrusion pipe 6 and push the coil spring 7. It is rotated by 8 motors and the detergent is pushed out and dropped. The fallen detergent is received in a detergent receiver 9, tap water is poured into the detergent receiver 9 through a water supply valve 10, and the detergent and tap water are dropped into an inner tank (washing tub) 11. A rotary blade 12 is disposed within the inner tank 11 so as to be rotatable left and right, and the rotational force of a motor 13 is transmitted to the rotary blade 12 via a V-belt 14.

At the time of dehydration, the inner tank 11 is rotated by the action of the mechanical case 15 so as to perform dehydration. Further, a water receiver 16 is provided to cover the outer periphery of the inner tub 11 to receive washing water, and the water receiver 16 is suspended by vibration isolators 17 at its four corners.

FIG. 4 is a side sectional view of the automatic laundry loading device 3. The detergent container case 5 has a sloped lower part, and the bottom part communicates with a detergent extrusion pipe 6. A coil spring 7 is set in the detergent extrusion pipe 6. This coil spring 7 rotates for a constant time depending on the amount of detergent added.

Problems to be solved by the invention However, in the conventional configuration, when detergent is poured into the detergent container case 5, the detergent enters the detergent extrusion pipe 6 as shown in FIG. An air chamber is generated in front of the lid 4 on the outlet side of the extrusion pipe 6, and the detergent stops leaving the air chamber 18, and the amount of detergent initially introduced is reduced by the amount in the air chamber 18. Therefore, it was not possible to input the appropriate amount.

In addition, as shown in Fig. 6, the detergent container case 1
It is possible that it is not attached to the slope of 9.
In this case, as shown in the figure, the detergent is used from the lid 20 side, leaving detergent residue on the left side, and finally the detergent 21 remains in a diagonal triangular shape.

The present invention is intended to solve the above-mentioned problems, and aims to automatically add detergent at the start of washing, and to allow an appropriate amount of detergent to be added at the start of detergent addition.

Means for Solving the Problems In order to achieve the above object, the present invention includes a box-shaped detergent case for storing powdered detergent, a detergent extrusion pipe communicating with the lowest part of the detergent case, and a detergent extrusion pipe. The detergent case has a coil spring rotatably disposed inside the case, and a motor connected to one end of the coil spring to rotate for a predetermined period of time. The side wall of the detergent container case is connected to the other end of the detergent outlet of one end of the detergent extrusion pipe where the motor is disposed and above the detergent extrusion pipe, and the side wall above the detergent outlet is connected to the side wall of the detergent case almost perpendicularly to the side wall above the detergent outlet. This structure has a slit groove communicating above the detergent outlet.

Effect: With this configuration, the powdered detergent flows through the slit groove to the detergent outlet side of the detergent extrusion pipe, making it possible to prevent the generation of air chambers. As a result,
The appropriate amount of detergent will be added at the beginning when adding detergent.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the automatic detergent dispensing device 22 has a box-shaped detergent container case 23, and the opposing sides of the lower part of the case 23 are formed into substantially V-shaped inclined surfaces. At the bottom of the detergent container case 23, there is a detergent extrusion pipe 25,
A conveying means 26 consisting of a coil spring 7 disposed within the pipe 25 is provided. An outlet 27 is formed at one end of the pipe 25 and covered with a lid 4 that opens and closes this outlet 27. A slit groove 24 is formed on the inclined surface located above the outlet 27 side.

As shown in FIG. 2, the slit groove 24 can have any length L and width.
It may be determined according to the size of the detergent container case 23, the angle of inclination of the inclined surface 23, and the shape of the detergent extrusion pipe 25.

In the above configuration, when powdered detergent is introduced from above the detergent case 23, it flows into the detergent push-out pipe 25 along the slope at the bottom of the detergent case 23, but at this time, the slit groove 24 allows the detergent to flow into the detergent Since the outlet 27 is filled with the detergent, the initial amount of detergent extruded does not include air, so that an appropriate amount can be injected.

Effects of the invention As is clear from the above embodiments, according to the invention, the appropriate amount of powdered detergent can be reliably dispensed the first time the detergent is added, and regardless of the size of the powdered detergent particles, they always flow to the dispenser outlet side. This prevents air from flowing into the detergent and automatically dispenses the correct amount of detergent. In addition, since the width and length of the slit groove can be easily changed using a mold, it can be arbitrarily determined according to the shape and slope of the detergent container case. When this happens, you can insert a rod-shaped object through this slit and remove the detergent lumps directly from above.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of an automatic detergent dosing device showing an embodiment of the present invention, Fig. 2 is a plan view of the same, and Fig. 3 is a longitudinal cross-section of a single-tub centrifugal dehydrating washing machine having a conventional automatic detergent dosing device. 4 is a side sectional view of the same detergent dosing device, FIG. 5 is a sectional view showing the flow of detergent in the same detergent automatic dosing device, and FIG. 6 is a detergent flow diagram of another conventional detergent dosing device. It is a sectional view showing a flow. 22...Detergent container case, 23...Detergent container case, 24...Slit groove, 26...Transportation means,
27...Exit.

Claims (1)

[Scope of utility model registration request] A box-shaped detergent case for storing powdered detergent, a detergent extrusion pipe communicating with the lowest part of the detergent case, a coil spring rotatably arranged inside the detergent extrusion pipe, and one end side of this coil spring. and a motor that rotates for a predetermined period of time, and the opposing side walls of the detergent case have a tapered shape in which the interval narrows toward the bottom. An automatic detergent dosing device for a washing machine, wherein a side wall of the detergent case is connected to an end side and above a detergent extrusion pipe, and a slit groove is formed in the side wall above the detergent outlet almost vertically and communicating with the detergent outlet. .