JPS60242887A - Treating agent charging apparatus of washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a processing agent feeding device for a washing machine that can automatically feed a predetermined amount of processing agents for detergents and finishing agents used in general households into a washing tub.

Conventional Structure and Problems Conventionally, in a processing agent loading device for a washing machine, a detergent container for storing one load of detergent is used to automatically introduce detergent, for example, as a processing agent into a washing tub in a predetermined process. There are some that are installed inside the washing machine so that it can be injected into the washing tub at predetermined intervals. However, this type of washing machine is inconvenient because it is necessary to measure the detergent and put it into the detergent container each time you wash the clothes. In addition, the detergent container can store several doses of detergent, and an on-off valve and a flow control valve are provided in the path leading the detergent from the detergent container to the washing tub, and the flow control valve opens in conjunction with the water level in the washing tub. There is one that automatically dispenses detergent by changing the degree of detergent and opening the on-off valve at a predetermined timing for a predetermined period of time. However, with this type of device, even if the opening degree of the flow control valve is changed according to the amount of water in the washing tub,
The resistance of the control valve varies depending on the viscosity of the detergent and the amount of liquid stored in the detergent container, so the amount of detergent that passes within a certain period of time varies, resulting in excessive or insufficient concentration of the washing liquid in the washing tank, resulting in wasted detergent and washing problems. There is a problem of degraded performance.

In addition, the detergent container can store several doses of detergent, and it is equipped with multiple measuring dispensers that measure the detergent from the detergent container and put it into the washing tub, depending on the water level in the washing tub. Some devices operate a metering dispenser, while others operate an operating frame to change the operating stroke of the dispenser to control the amount of detergent dispensed.

However, this type of device has a problem in that the structure is complicated and expensive.

Purpose of the Invention The present invention solves these conventional problems and improves detergents and
To provide a processing agent feeding device for a washing machine which eliminates wastage of processing agent and improves washing performance and ease of use.

Structure of the Invention The treatment agent feeding device for a washing machine of the present invention includes a water supply means for supplying water to a washing tub, a water level detection means for detecting that water in the washing tub has reached a predetermined value, and a treatment agent feeding device for a washing machine. The processing agent is added to the washing tub, and the processing agent is added to the washing tub in an amount corresponding to a set minimum water amount of the washing tub; The structure is such that an operation is performed in which the amount of treatment agent is added to the amount of treatment agent that is the difference between the amount of water at each water level.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. Figure 1 shows the schematic configuration of a washing machine with dehydrating function.
2 is the main body, 2 is an outer tank that is supported by a vibration-proof suspension in the main body 1, and 3 is a dehydration/washing tank (hereinafter referred to as
4 is a stirring blade arranged at the inner bottom of the washing tub 3, and 5 is a motor, which transmits rotational force to the stirring blade 4 or the washing tub 3 by switching operation of a clutch mechanism 6. 7 is motor 5
8 is a drain port, and 9 is a discharge hose to the outside of the machine.

10 is an air trap provided at the bottom of the outer tank 3, and the air trap 10 is a water amount detection switch 11 provided at the top of the main body 1.
It communicates with the air hose 12.

Reference numeral 13 denotes an in-machine water supply pipe, through which water is supplied from an external hose (not shown) into the washing tub 3 via a water supply valve 14 .

In FIG. 2, reference numeral 16 denotes a processing agent storage container provided at the top of the main body 1, in which, for example, liquid detergent is stored. Storage container 1
A metering pump 17 for forcibly injecting a processing agent into the washing tub 3 through a liquid supply pipe 16 is provided at the lower part of the washing tub 3.

To explain the operation in the above configuration, washing J washing tub 3
water amount detection switch 1 according to the amount of laundry.
1, set the water level (not shown) using a timer, and turn on the power, the water supply valve 14 opens and water is supplied into the washing tub 3. When the water level reaches the set water level, the water amount detection switch 11 operates and the water supply starts. The valve 14 closes, water supply to the washing tub 3 ends, the mokuro is driven, the stirring blades 4 rotate, and washing begins.

The metering pump 17 operates in conjunction with the water level setting of the water amount detection switch 11, and detergent is injected into the washing tub 3 from the storage container 15. 3 to 5 show the appropriate amount of detergent at each water level in the washing tub. Using the metering pump 17, first add the detergent for the low water level to the washing tub 3, then turn on the water amount detection switch 11. Even if the water level is set to a medium water level, an additional amount equal to the difference between the amount of detergent for the medium water level and the amount of detergent for the low water level is added. If the water level is high, add the amount of detergent equal to the difference between the amount of detergent for the high water level and the amount of detergent for the medium water level. In this way, an appropriate amount of detergent can be added to the washing tub 3 when the water level is changed after setting.

In the above embodiments, the case where liquid detergent is added to the washing tub before the start of washing has been described, but the same applies to the case where processing agents such as bleach and antistatic agents are added during the final rinse.

Further, in this embodiment, the case where the water level is set manually has been described, but the same applies to the case where the water amount is automatically set according to the amount of cloth.

In this embodiment, the processing agent storage container and metering pump are built into the washing machine main body, but the same applies if they are separate units.

Furthermore, although this embodiment has been described with respect to a dehydrating and washing machine, the present invention can also be applied to a two-tub type washing machine.

Effects of the Invention The processing agent feeding device for a washing machine of the present invention includes a water supply means for supplying water to a washing tub, a water level detection means for detecting that water in the washing tub has reached a predetermined value, and a processing agent for supplying a processing agent to the washing tub. By providing a treatment agent inputting means, and performing an operation of inputting an amount of treatment agent corresponding to the difference between the amount of treatment agent for the set minimum water amount of the pre-washing tank and the amount of treatment agent for the amount of water at each water level. , it is possible to adjust the concentration of the processing agent in the washing tub according to changes in the water level setting of the washing tub and after adding the processing agent, reducing wastage of processing agent,
It is possible to provide a processing agent charging device for a washing machine that prevents performance deterioration due to a shortage of processing agent and has a simple structure and is inexpensive.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-section of a washing machine with dehydration and dehydration functions showing an embodiment of the present invention, Fig. 2 is a sectional view of the main parts, and Figs. 3 to 6 show the amount of treatment agent added to the water level of the washing tub. FIG. 3...Washing tub, 11...Water amount detection switch, 16...Processing agent storage container, 17...
Metering pump. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
figure

Claims (1)

[Claims] A water supply means for supplying water to the washing tub, a water level detection means for detecting that the water in the washing tub has reached a predetermined value, and a processing agent injection means for introducing a processing agent into the washing tub, The operation of adding the treatment agent is the operation of adding the amount of treatment agent for the set minimum water amount of the washing tub, and the amount of treatment agent that is the difference between the amount of treatment agent for the set minimum water amount of the washing tub and the amount of treatment agent for each water level. A processing agent loading device for a washing machine configured to perform a loading operation.