JPS60242891A - 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 Industrial Application The present invention relates to a processing agent dosing device for a washing machine that can automatically dispense 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 the processing agent loading device of a washing machine, in order to automatically dispense detergent as a processing agent into the washing tub in a predetermined process, a detergent container for storing one load of detergent is used. 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 add it to the detergent container each time a washing operation is performed. In addition, the detergent container can store several doses of detergent, and an on-off valve and a flow control valve are installed in the path leading the detergent from the detergent container to the washing tub. There is a device that automatically dispenses detergent by changing the degree of opening of the on-off valve and opening the on-off valve at a predetermined timing for a predetermined period of time. However, according to this type of product, commercially available detergent stock solutions have different concentrations, so even if you control the amount of detergent according to the amount of water in the washing tub, it is not possible to match the concentration of the detergent stock solution. There is a problem that the concentration of the washing liquid in the washing machine is too high or too low, resulting in wasted detergent and poor cleaning performance.

In addition, the detergent container can store several doses of detergent, and it is equipped with multiple measuring dispensers that measure the amount of detergent from the detergent container and add it to the washing tub. There are those that operate the dispenser, and those that control the amount of detergent dispensed by operating a control stick to change the flow rate of the dispenser.

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

Purpose of the Invention The present invention solves these conventional problems, eliminates waste of processing agents for detergents and finishing agents, improves washing performance, and improves ease of use by adding processing agents to washing machines. It provides equipment.

Structure of the Invention The processing agent charging device for a washing machine according to the present invention includes a storage tank for storing a processing agent, a charging means for charging the processing agent from the storage tank into the washing tub, and a charging device for charging the processing agent according to the concentration of the processing agent. A concentration switching means for switching the operation is provided, and the operation of the treatment agent inputting means is performed based on approximately the maximum common amount of the required amount of low concentration treatment agent and the required amount of high concentration treatment agent with respect to the amount of water in the washing tub. It is structured as follows.

``Description of the Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. Fig. 1 shows a schematic structure 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
(referred to as a washing tub), 4 is an agitation blade disposed at the inner bottom of the washing tub 3, and 6 is a motor, which transmits rotational force to the agitation blade 4 or the washing tub 3 by the switching operation of the clutch mechanism 6. 7 is motor 6
8 is a drain port, and 9 is a discharge hose to the outside of the machine.

1o 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 15 denotes a processing agent storage container provided on the upper part 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. 18 is a concentration changeover switch for the detergent stock solution.

To explain the operation in the above configuration, laundry is put into the washing tub 3, the set water level of the water amount detection switch 11 is adjusted according to the amount of laundry, a timer (not shown) is set, and the power is turned on. When the water is turned on, the water supply valve 14 opens and the washing tub 3
When water is supplied into the tank and reaches the set water level, the water amount detection switch 11
operates, the water supply valve 14 closes, water supply to the washing tub 3 ends, the motor 6 is driven, the stirring blades 4 rotate, and washing begins.

The operation of the metering pump 17 is set in conjunction with the water level setting of the water amount detection switch 11, and the metering pump 17 operates between the time when water is supplied into the washing tub 3 and the time when the stirring blades 4 start rotating. Detergent is injected into the washing tub 3 from the container 15. The appropriate amount of detergent for the amount of water in the washing tub 3 is the maximum common amount of the low concentration detergent amount and the high concentration detergent amount as one unit,
For example, when the ratio is 6=3 as shown in FIG. 3, the operation of the metering pump 17 is based on the maximum common amount of 1 unit
If the concentration selector switch 18 is set to the "low" side, it operates by 6 units, and if it is set to the "high" side, it operates by 3 units. Therefore, by switching the concentration selector switch 18, the concentration of the detergent stock solution can be changed. Also, the concentration in the washing tub 3 can be adjusted appropriately.

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.

Further, in this embodiment, the processing agent storage container and the metering pump are built into the main body of the washing machine, but the same applies if they are provided separately.

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 As is clear from the above embodiments, the processing agent charging device for a washing machine of the present invention includes: a storage tank for storing a processing agent; a charging means for charging the processing agent from the storage tank into the washing tub; Concentration switching means is provided for switching the operation of the processing agent input means depending on the concentration of the treatment agent, and the operation of the treatment agent input means is configured to control the amount of treatment agent required for a low concentration and the amount of treatment agent for a high concentration required for the amount of water in the washing tub. By adopting a configuration in which the processing is carried out based on approximately the most common amount of the processing agent, even if the concentration of the processing agent stock solution changes, the concentration of the processing agent in the washing tub can be maintained at an appropriate level, reducing wastage of the processing agent and reducing processing costs. It is possible to provide a processing agent charging device for a washing machine that prevents performance deterioration due to lack of agent and has a simple structure and is inexpensive.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a washing machine with dehydrating function that shows an embodiment of the present invention, Fig. 2 is a cross-sectional view of the main parts, and Fig. 3 is a diagram showing a comparison of the amount of detergent depending on the washing tub and detergent concentration. be. 3... Washing tub, 16... Processing agent storage container, 17... Metering pump, 18... Concentration selection switch. Figure 1//

Claims (1)

[Claims] A storage tank for storing a processing agent, a charging means for charging the processing agent from the storage tank into a washing tub, and a concentration switching means for switching the operation of the processing agent charging means depending on the concentration of the processing agent,
The treatment agent inputting device for a washing machine is configured such that the operation of the treatment agent input means is performed based on approximately the maximum common amount of the required amount of low concentration treatment agent and the required amount of high concentration treatment agent with respect to the amount of water in the washing tub. 0