JPS5817600Y2 - 2-tank washing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a two-tank washing machine that performs a rinsing process by repeating a dehydration process and an agitation process in a dehydration tank.

Conventionally, in two-tank washing machines, items to be washed are rinsed in the washing tank, but this requires a large amount of water and takes a long time due to overflow rinsing.

Therefore, after washing, the items to be washed must be placed in a dehydration tank to be dehydrated, and then rinsed in the washing tank again, resulting in a lot of wasted work.

In order to solve these problems, the present invention relates to a two-tank washing machine in which the items to be washed are dehydrated and rinsed in a dehydration tank. By enhancing the rinsing process and performing drainage at the same time as the dehydration process, the overall circuit configuration is simplified and effective dewatering and rinsing can be performed.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a washing time switch, which is controlled by a select switch 2 and can obtain the strength or weakness of the reversal.

Reference numeral 3 denotes a washing motor, which performs washing by repeatedly reversing in time according to a washing time switch 1.

Reference numeral 4 denotes a cock switch, which is linked to a cock knob (not shown) and is opened when draining water, and is closed at other times.

5 is a water supply valve that is energized to supply water when the cock switch 4 is closed; 6 is a dehydration lid switch that opens when the lid is opened and closes when the lid is closed; 7 is a dehydration valve that has contacts T1 to T3. Time switch, 8 is dewatering motor, 9 is drain valve,
10 is a pressure switch that operates depending on the amount of water supplied in the dehydration tank;
11 is a timer motor of the dehydration time switch 7.

As is clear from the circuit configuration and program chart shown in FIGS. 1 and 2, the above-mentioned washing machine has a normally open contact No. of the dehydration lid switch 6 and a dehydration time switch 7 during dehydration.
Contact point T1. The dehydration motor 8 and the timer motor 11 are energized via the T2b side to perform dehydration.

At this time, the drain valve 9 is energized via the contact T3b and is opened.

Next, during the stirring provided immediately after the dehydration process, the contacts Tl, T
2a, the water supply valve 5 is energized via the normally closed contact Nc of the pressure switch 10.

When the water level in the dehydration tank reaches a certain level, the pressure switch 10 switches from the normally closed contact Nc to the normally open contact No.
The dewatering motor 8 rotates and performs a stirring process.

That is, in the stirring process, water is supplied at least initially.

Note that during this stirring process, the drain valve 9 is closed because the contact T3 is open.

The rinsing process is formed by repeating the dehydration process described above several times, at least the stirring process that supplies water at the beginning, and the dehydration and rinsing of the items to be washed is completed by going through this rinsing process and the final dehydration process. It is something.

Note that FIGS. 3 and 4 show other embodiments of the washing machine of the present invention, and the same parts as those in FIG. 1 are indicated by the same symbols.

In this embodiment, the dehydration motor 8 is driven after stirring only when the water level in the dehydration tank falls below a certain level and the normally open contact of the pressure switch 10 is closed.

Therefore, the load on the dewatering motor 8 is reduced.

As is clear from the embodiments described above, the present invention includes a water supply valve that supplies water to a dehydration tank, a dehydration motor that drives the dehydration tank, a dehydration time switch that switches the dehydration motor between a dehydration process and an agitation process, and a dehydration process that controls the dehydration process. and a drain valve that is closed during the agitation process that is opened at the same time, and a rinsing process is formed by repeating the dehydration process and the agitation process in which water is supplied at least initially, and drainage is performed at the same time as the dehydration process, Dewatering and rinsing can be carried out effectively, and since there is no separate drainage process, the overall circuit configuration is simplified and is advantageous in terms of cost.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram showing one embodiment of the washing machine of the present invention, Fig. 2 is a program chart diagram of Fig. 1, Fig. 3 is a circuit diagram showing another embodiment, and Fig. 4 is a circuit diagram of Fig. 3. It is a program chart figure. 5...Water supply valve, 7...Dehydration time switch, 8...Dehydration motor, 9...Drain valve, 10...Pressure switch .

Claims (1)

[Scope of utility model registration request] A water supply valve that supplies water to a dehydration tank, a dehydration motor that drives the dehydration tank, a dehydration time switch that switches the dehydration motor between a dehydration process and an agitation process, and a drain valve that opens during the dehydration process and closes during the agitation process. A two-tank washing machine comprising: a rinsing process is formed by repeating the dewatering process and an agitation process in which water is supplied at least initially, and drainage is performed at the same time as the dewatering process.