JPH0235596B2 - - Google Patents

Description

[Detailed Description of the Invention] The advantage of pre-washing with water in a washing machine is that it removes mud, sweat and salt from clothes simply by the power of stirring the water of the pulsator.
This prevents the water from increasing in hardness due to mud, sweat, and salt when the water is discharged outside the machine along with the wastewater, and detergent is then added to wash it.

As hardness increases, it becomes difficult for detergent to dissolve, so pre-washing makes it easier for detergent to dissolve.

Also, if you do not pre-wash, the detergent will be adsorbed to dirt, sweat, and salt, and the detergent that is adsorbed to these stains will not work to separate the stains from other clothes, and the detergent will be more difficult to clean than when pre-washed. , efficiency becomes worse.

Although the effects of such prewashing have been recognized,
In reality, it is not carried out because the washing process increases and is cumbersome. In particular, with conventional automatic washing machines, in order to perform pre-washing, you have to set the timer to the wash only course, drain the water after washing, set the timer to the normal wash course, and add detergent, which is very time-consuming. Even if the effect of prewashing is known, it will not be carried out.

In the present invention, a washing course including pre-washing is set on the timer, and the detergent put into the box before operation is automatically pre-washed and then put into the washing tank to automatically perform the washing course including pre-washing from beginning to end. It is intended for this purpose.

Next, the structure and operation of one embodiment of the present invention will be explained with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a washing machine, in which 1 is an inner tank for washing and dewatering, 2 is a fluid balancer fixed to the upper edge, 3 is a stirring blade rotatably disposed in the inner tank 1, 4 is an outer tank for housing the inner tank 1 in a watertight manner;
Reference numeral 5 denotes a rod that suspends and supports the buffer body 7 from the outer box 6 of the outer tank 4. 8 is an electromagnetic drain valve that controls the water in the outer tank 4 with a time switch, etc.; 9 is a drain hose; 10 is a motor connected to the mechanical case part 12 by a V-belt 11;
In step 2, select between washing and dehydration.

13 is a top plate that covers the upper part of the outer box 6, 14 is a top plate 1
3 is a lid pivotally supported, and 15 is an operation box portion having a rear wall formed integrally with the top plate 13, and the operation box 15 is formed by an operation plate 16 on which a time switch, a changeover switch, etc. are arranged. are doing.

FIG. 2 is a partially sectional perspective view of the inner tank 1. FIG. 1
8 is a detergent case containing liquid detergent, and claw 1
It is fixed to the liquid balancer 14 at 9. Reference numeral 20 denotes an inlet for putting detergent into the case 18.

FIG. 3 is a longitudinal sectional view of the detergent case 18. To explain the movement of detergent in order from pre-washing (washing with water) to main washing (washing with detergent added), first, before performing pre-washing, liquid detergent is introduced into the first chamber 21 through the inlet 20 of the detergent case 18. Next, set the timer, supply water, and once the washing is complete, the water will be dehydrated. During dehydration, the first chamber 21 of the detergent case 18
The detergent placed in the detergent is subjected to centrifugal force and moves upward along the inclined wall surface 22, and the opening/closing valve 24 of the opening 23 provided in the wall surface 22 is opened by the centrifugal force and is transferred to the second chamber 25. While being subjected to centrifugal force, the detergent remains in the second chamber 25 due to the centrifugal force. When the dehydration is completed, the detergent, which is no longer subject to centrifugal force, is poured into the inner tank 1 through an opening 26 provided toward the center of the second chamber 25. After that, carry out the normal washing process. 27 is a spring attached to the on-off valve.

As explained above, according to the present invention, the washing process including water washing as pre-washing is automatically performed, and detergent can be used efficiently, making it extremely easy to use, and moreover, the washing efficiency is extremely high.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a washing machine showing an embodiment of the present invention, FIG. 2 is a partial cross-sectional perspective view of the inner tank of the same main part,
FIG. 3 is a longitudinal cross-sectional view of the main part of the detergent case, and FIG. 4 is an enlarged plan view of the timer scale. 1... Inner tank, 2... Fluid balancer, 3... Stirring blade, 4... Outer tank, 5... Rod, 6... Outer box, 7...
...Buffer, 8...Solenoid drain valve, 9...Drain hose, 10...Motor, 11...V belt, 12
... Mecha case, 13 ... Top plate, 14 ... Lid, 1
5...Operation box section, 16...Operation board, 18...Detergent case, 19...Law, 20...Inlet, 21...
...First chamber, 22...Wall surface, 23...Opening, 24
...Opening/closing valve, 25...Second chamber, 26...Opening,
27...Spring.

Claims (1)

[Claims] 1 A partitioned compartment is formed inside the box, passage holes are provided in the partition walls between the compartments, and liquid detergent is passed through the passage hole by centrifugal force and gravity due to the rotation of the dehydration/washing tank. The box body is removably attached to an inertia ring fixed to the upper opening edge of the dehydration/washing tank, and a wash timer is set to supply water, pre-wash, and dewater before the wash course,
The washing machine has a timer set so that the detergent put into the box body is automatically put into the inner tank after the spin-drying after the pre-washing is completed, and the time period is set to move on to the washing process.