JPS58221986A - Drum type washer - 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 The present invention relates to improvements in drum-type washing machines.

Drum-type washing machines have the advantage of using less water and not damaging the items being washed, but because the washing is done by dropping the items to be washed, they tend to produce foam, which reduces the cleaning power.

Conventionally, this problem has been addressed by using low-foaming detergents, but low-foaming detergents are currently difficult to obtain.

By the way, the generation of bubbles during washing occurs because the items to be washed fall into the detergent solution. Therefore, if there is no detergent solution at the point where the item to be washed falls, bubbles will not be generated.
If left as is, the detergent solution is unlikely to be included in the items being washed.

At the beginning of the washing process, there are 2
Because it contains air, bubbles are generated by this air,
Decreases cleaning power.

The present invention has been made in view of the above-mentioned points, and includes a step of pouring detergent solution into the object to be washed by using a pump device in order to impregnate the object with the detergent solution and washing the object with the detergent solution. After using a pump device to inject detergent solution into the object to be washed and expel the air inside the object, the rotating drum is rotated to wash the object, thereby suppressing the generation of bubbles and improving cleaning performance. .

Hereinafter, the present invention will be explained in detail with reference to the drawings.

Fig. 1 is a schematic structural explanatory diagram showing an example of the structure of a drum-type washing machine according to the present invention, Fig. 2 is an electric circuit diagram of the pump device and drum drive motor 2 of the drum-screwing machine, and Fig. 3 2 is a time chart of the operation in the electric circuit shown in FIG. 2, and FIG. 4 is a time chart of another embodiment.

In Fig. 1, ■ is a rotating drum, 2 is a washing tank with a built-in rotating drum l, 3 is a water tank provided at the bottom of the washing tank 2, and 4 is a washing tank that collects the washing liquid accumulated in the water tank 3 into a rotating drum l. Pump device that injects water into the interior, 5-discharge program timer, 6
7 is a drum drive morph that drives the rotating drum 1; 7 is a water supply valve that supplies water to the washing tank 2; 8 is a vibration isolation mechanism; 9
is a drain valve that drains water from the water receiving tank 3.

FIG. 2 shows the circuit of the pump device 4 and the drum drive mokro.
(having contacts a, b), and the drum drive mokro is connected to a power source via a switch S2 (having contacts a, b). These switches Sl and S2 are connected to the contacts a and b as shown in FIG. 3 during the washing process.
opens and closes. In other words, at the beginning of the washing process, the contact aK47J on the switch SI side is replaced and the pump device 4
is activated, and after a predetermined time, the contact is switched to the pump device 4.
stops. At this time, the switch S2 side is a contact point and the drum drive motor is not energized, but
When a predetermined period of time has elapsed after the contact point a on the switch S1 side is turned on and the pump device 4 is stopped, the contact point a of this switch S2 is turned on, and the drum drive motor starts being energized. At the same time, the contact a on the switch S1 side is also turned on, and the pump device 4 starts operating.

Next, the operation of the drum-type washing machine having the above structure will be explained.

The first v1 water supply valve 7 is opened to supply water to the washing tank 2. At this time, the water level in the washing tank 2 is set to approximately the lower end of the rotating drum 1. This can be done by providing a water level switch or a switch to detect the amount of water supplied.

When the water level in the washing tank 2 reaches almost the lower end of the rotating drum 1, the water supply valve 7 is closed and the washing step (moves on).

At the start of the washing process, the pump device 4 is operated for a predetermined period of time to inject detergent liquid from the water receiving tank 3 onto the object to be washed in the rotating drum 1, thereby expelling the air inside the object to be washed. After expelling the air inside the item to be washed, the pump device 4 is stopped,
After a predetermined period of time has elapsed, the drum rotation motor 6 is activated to rotate the rotary drum 1 to perform washing, and the pump device 4 is activated again to perform washing while pouring detergent solution from the water receiving tank 3 into the washing tank 2. Let's do it.

In the above embodiment, the contact a on the switch S1 side is turned on, then switched from the a side to the b side, and then the contact a is turned on again to operate the pump device 4. However, as shown in FIG. Immediately after water is injected by the pump device 4, the contact a on the switch S2 side may be turned on to operate the drum drive motor without turning on the side.

Further, in the above embodiment, water is constantly injected from the water tank 3 to the rotating drum l during washing, but as shown in FIG.
Water may be injected intermittently.

As mentioned above, the drum-type washing machine invented by Liu Se consists of a washing tank with a built-in rotating drum, a water tank provided at the bottom of the washing tank, a pump device that injects the detergent liquid accumulated in the water tank into the rotating drum, and a program timer. The water level is set almost at the bottom of the rotating drum, and at the beginning of the washing process,
The pump device injects water from the water tank into the rotating drum for a predetermined period of time, and then the rotating drum is rotated to start washing, and during washing, the pump device pumps water into the rotating drum.
According to this drum-type washing machine, water is injected into the rotating drum.
It suppresses the generation of bubbles, allows the use of general synthetic detergents, and improves cleaning performance.

[Brief explanation of drawings]

Fig. 1 is a schematic structural explanatory diagram showing an example of the structure of a drum-type washing machine according to the present invention, Fig. 2 is an electric circuit diagram of the pump device and drum drive motor 2 part in the drum-type washing machine, Fig. 3 Vi, FIG. 2 is a time chart of the operation in the electric circuit, and FIG. 4 is a time chart of another embodiment. l: Cough @Ju・Kototo 2=Washing tank, 3: Water tank, 4:
Pump device, 6: drum drive moke, s, s2: switch. Agent Patent attorney Aihiko Fukushi (and 2 others) 1 Figure 3 Figure 4

Claims (1)

[Claims] 1. A washing tank with a built-in rotating drum, a water tank provided at the bottom of the washing tank, a pump device for injecting detergent liquid accumulated in the water tank into the rotating drum, and a program timer,
The water level is set at approximately the lower end of the rotating drum, and at the start of the washing process, water is injected from the water tank into the rotating drum by the pump device for a predetermined period of time, and then the rotating drum is rotated to start washing, and A drum-type washing machine specially designed to inject water from the water tank into the rotating drum using a pump device during washing. 2. At the start of the washing process, a pump device injects water from a water tank into the rotating drum for a predetermined period of time, and after stopping the pump device for a predetermined period of time, the rotating drum is rotated to start washing. Drum type washing machine as described in section. 3. The drum type washing machine according to claim 1, wherein at the start of the washing process, water is injected into the rotating drum from the water receiving tank by a pump device for a predetermined period of time, and then the rotating drum is immediately rotated to start washing. 4. The drum-type washing machine according to claim 1, in which a pump device is constantly operated to inject water from a water tank into the rotating drum during washing. 5. During washing, a pump device is operated intermittently to inject water from a water tank into the rotating drum intermittently (*.