JPS582714B2 - washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washing machine, and more particularly to a washing machine that can obtain novel water flow changes with excellent washing effects.

In order to obtain an excellent washing effect without twisting or entangling the items to be washed, a varied water flow is required, and a strong water flow is also necessary for washing thick items.

Conventionally, automatic reversing water flow that periodically reverses in both forward and reverse directions,
The fixed rotating water stream that rotates continuously in one direction was selected depending on the items to be washed.

However, the constant rotating water flow used for washing thick materials has the disadvantage that it does not change easily, and the automatic reversing water flow has the disadvantage that the water flow is weak because the water flow is canceled out when it is reversed.

Furthermore, due to the diversification of fibers, it was possible to obtain four types of water flows by adding strength changes to the above-mentioned automatically reversing water flow and constant rotation water flow by changing the number of poles of the moke, but with the help of motor windings. This has the disadvantage that the wiring becomes complicated and expensive.

This invention changes the constant rotating water flow with a simple configuration,
It provides an excellent cleaning effect.

Furthermore, with a simple configuration, it is possible to obtain as many as four types of water flow.

Hereinafter, a detailed description will be given with reference to the drawings. In FIG. 1, reference numeral 10 denotes a pulsator drive motor capable of forward and reverse rotation, and has a forward rotation side conducting wire 11 and a reverse rotation side conducting wire 12 led out to the outside.

RSI and RS2 are automatic reversing switches driven by a timer, and three automatic reversing switches RS1 and RS2 each having a movable contact C that alternately contacts two contacts a and b are connected in series to the motor 10 in parallel with each other. .

One automatic reversing switch RS1 contacts each contact a and b for 25 seconds, with a rest time of 5 seconds between them.

The other automatic reversing switch RS2 contacts each contact point a, b for 5 seconds each, with a rest time of 10 seconds between them.

SW1 is a reversal cycle changeover switch, which has a contact a connected to the movable contact C of one automatic reversing switch RS1, a contact b connected to the movable contact C of the other automatic reversing switch RS2, and both contacts a and b. It has a movable contact C that is manually operated to selectively contact.

SW2 is a constant rotation reversal switch, with contact a connected to the forward rotation side conductor 11 and contact b connected to the reverse rotation side conductor 12.
and a movable contact C that is manually operated so as to selectively contact both contacts a and b.

One contact a, a of each automatic reversing switch RSI, RS2
are connected to the normal rotation side conductor 11, respectively, and the other contacts b,
b is the movable contact C of the constant rotation/reversal changeover switch SW2.
connected to.

A movable contact C of the inversion period changeover switch SW1 is connected to one side of the power source via a timer contact T.

Reversal period selection switch SWI and fixed rotation reversal selection switch S
W2 and W2 are arranged so as to be interlocked with each other, and the combination of the two provides four stages of operation.

FIG. 2 is a table showing the relationship between the four stages of operation, that is, the four stages of water flow, and the contacts that are closed at that time. In the table, the ○ mark indicates that the contact is closed, and the blank space indicates that it is open.

The four-stage operation is performed using push buttons P1 to P4, for example.

P5 is a push button that stops the motor 10 regardless of the time limit contact T.

When the pushbutton P1 is pressed, the reversal period changeover switch SW1 is closed to the contact a on the RSI side of one automatic reversal switch,
The constant rotation/inversion changeover switch SW2 is closed at its contact b.

That is, the automatic reversing switch RS1 is connected to the power source, and its contacts a and b are connected to the forward rotation side conductor 11 and the reverse rotation side conductor 12 of the motor.

As a result, as shown in Figure 3, 25 seconds of normal rotation, 5 seconds of rest,
Automatic reversal water flow of 25 seconds reversal can be obtained.

When the pushbutton P2 is pressed, the automatic reversal switch RS1 is connected to the power supply in the same way as described above, and the constant rotation reversal switch SW2 is connected to the power supply.
is closed at its contact a, and both contacts a and b of the automatic reversing switch RSI are connected to the normal rotation side conducting wire 11.

As a result, the water flow rotates in the normal direction during the time corresponding to the reverse rotation in the water flow described above, and an intermittent constant rotation water flow is obtained in which the water flow rotates in the same direction for 25 seconds at a time with a 5 second pause in between.

When the pushbutton P3 is pressed, the reversal cycle changeover switch SW1 is closed to the contact b on the other automatic reversal switch RS2 side.
The constant rotation/inversion changeover switch SW2 is closed at its contact b.

That is, the automatic reversing switch RS2 is connected to the power source, and its contacts a and b are connected to the forward rotation side conductor 11 and the reverse rotation side conductor 12 of the motor.

As a result, 5 seconds forward rotation, 10 seconds pause, 5 seconds reverse rotation...
An automatically reversed water flow that is automatically reversed at a period of . . . and is weaker than the water flow generated by the push button P1 can be obtained.

When the pushbutton P4 is pressed, the automatic reversal switch RS2 is connected to the power supply in the same way as described above, and the constant rotation reversal switch SW2 is connected to the power supply.
is closed at its contact a, and both contacts a and b of the automatic reversing switch RS1 are connected to the normal rotation side conducting wire 11.

As a result, an intermittent, constant rotating water flow is obtained that rotates in the same direction every 5 seconds with a 10 second pause in between.

Note that the present invention does not preclude the inversion cycle changeover switch SW1 and the constant rotation inversion changeover switch SW2 from being operated separately without having an interlocking structure.

As described above, this invention allows one contact of the automatic reversing switch to be selectively connected to the forward rotation side circuit and the reverse rotation side circuit of the motor, so that the automatic reversing switch can be connected to the normal automatic reversing water flow and the automatic reversing switch. It is possible to obtain a constant rotating intermittent water flow that rotates intermittently in the same direction even when the water is switched.

Moreover, the constant rotating intermittent water flow does not cancel out the water flow when it reverses like the automatic reversing water flow, so it becomes a stronger water flow than the automatic reversing water flow, and it also includes a pause time, so the water flow changes. An excellent cleaning effect can be obtained.

In addition, by equipping the above configuration with multiple automatic reversing switches with different reversing cycles, it is not only possible to obtain multiple types of automatically reversing water flow, but also to easily change the strength of the constant rotation water flow. Ta.

In other words, in the past, it was necessary to change the number of poles of the motor in order to vary the strength of the constant rotating water flow, but by changing the reversal period of multiple automatic reversing switches, the intermittent period of the constant rotating water flow can be changed. Of course, by adding a change in the number of poles of the motor to the configuration of this invention, more types of water flows can be obtained (
(This invention does not preclude this.) However, in this invention, it is possible to obtain a practically sufficient type of water flow with just the above configuration.

[Brief explanation of drawings]

Figure 1 is an electrical circuit diagram of a washing machine embodying this invention.
Figure 2 is a table showing the opening/closing relationship of the contacts in the circuit diagram.
FIG. 3 is a diagram showing changes in the rotational direction of water flow. Explanation of numbers, 10... Pulsator drive motor, RS
1, RS2... automatic reversal switch, SW1... reversal cycle changeover switch, SW2... constant rotation reversal changeover switch.

Claims (1)

[Claims] 1. An automatic reversing switch that alternately connects the forward rotation side circuit and the reverse rotation side circuit of the pulsator drive motor to a power supply after a predetermined rest time, and the iE rotation side contact of the automatic reversal switch. a reversing side contact and a changeover switch that selectively connects one of the contacts to a normal rotation side circuit and a reverse rotation side circuit of the motor, the automatic reversing water flow based on the automatic reversing switch, and the automatic reversing switch A washing machine that can selectively obtain a constant rotation intermittent water stream that rotates intermittently in the same direction even when switched. 2 Select multiple automatic reversal switches that alternately connect the forward rotation side circuit and reverse rotation side circuit of the Pulsake 1 drive motor to the power supply at different cycles with a predetermined rest time, and those automatic reversal switches. A constant rotation switch that selectively connects the forward rotation side contact and reverse rotation side contact of each automatic reversal switch to the motor's forward rotation side circuit and reverse rotation side circuit. and selectively obtain multiple types of automatically reversed water streams based on each automatic reverse switch and multiple types of constant rotation intermittent water streams that rotate intermittently in the same direction even when each automatic reverse switch is switched. A washing machine that allows you to wash your clothes. 3. The constant rotation reversal changeover switch is provided on one of the forward rotation side contact and the reverse rotation side contact of each automatic reversal switch in series with the contact on the same side, and forms a common circuit for each automatic reversal switch. A washing machine according to claim 2. 4. The reversal period changeover switch and the constant rotation reversal changeover switch are arranged in conjunction with each other, and the period of the water flow and whether the water flow is constant rotation or reversal can be selected by operation (1) according to claim 2 or 3. washing machine.