JPS5812035B2 - Sentakuki - 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 selectively use various types of washing water streams and rinsing water streams depending on the type of fiber or the thickness of the fabric to be washed. It is something.

Conventional washing machines have two types of water flow: a rotating water flow that rotates continuously in one direction only, and an automatic reversing water flow that reverses every 30 seconds. A total of four types of water flow can be selected by combining two types of strength and weakness by switching.

This invention selectively obtains a plurality of different water flows in the water flow direction or water flow rotation direction switching cycle, and moreover, allows more types of water flows to be obtained with a smaller number of automatic reversing switches. .

Hereinafter, a detailed description will be given according to the drawings. In FIG. 1, M is a pulsator drive motor, S is a water flow selection switch,
Sa is an interlocking switch that opens and closes in conjunction with the water flow selection switch S, T1. T2 is an automatic reversing switch.

The water flow selection switch S consists of four switches 1, 2, 3°4 connected in parallel to one power supply terminal 10.

The first switch 1 is an automatic reversing switch T by means of a conductor 13.
It is directly connected to the normal rotation side circuit 11 of the motor M without going through one movable contact.

The second switch 2 is connected to an automatic reversing switch T by a conductor 14.
1 movable contact 5.

The third and fourth switches 3 and 4 each have the same conductor 1
5 is connected to the movable contact 6 of the automatic reversing switch T2.

The four switches are closed only alternatively, not two at the same time.

The automatic reversing switch 11 includes a contact 16 of the normal rotation side circuit 11 and a contact 17 of the reverse rotation side circuit 12, which the movable contact 5 contacts alternately.

The movable contact 5 is operated by a cam (not shown) driven by a clock mechanism of a time switch (not shown), and
As shown in the figure, both contacts 16 and 17 are contacted for 26 seconds each, and there is a pause time of 4 seconds between switching between the two contacts.

The other automatic reversing switch T2 also comprises contacts 18, 19, which the movable contacts 6 contact alternately.

The movable contact 6 is operated by another cam (not shown) driven by the clock mechanism, and as shown in FIG.
8.19 for 10 seconds each, with a 5 second pause between switching of both contacts.

Interlocking switch Sa is contact 18. of automatic reversing switch T2.
It consists of two switches 7.8, each connected to 19 via a conductor 20.21.

One switch 7 is the movable contact 5 of the automatic reversing switch T1.
The other switch 8 is connected to the contact 25 of the conducting wire 22 connected to the normal rotation side circuit 11 and the contact 26 of the conducting wire 23 connected to the forward rotation side circuit 11, and the other switch 8 is connected to the reverse rotation side circuit 12 by the conducting wire 24.

When the third switch 3 of the water flow selection switch S is closed,
The switch 7 is brought into contact with the contact 26 and is interlocked so that the switch β is closed.

When the fourth switch 4 is closed, the switch 7 is interlocked so as to contact the contact 25.

Note that 27 is a conductive wire that connects the motor M to the other power supply terminal 9.

When the first switch 1 of the water flow selection switch S is closed to select the water flow, the motor M is connected to the power source via the conductor 13 and the normal rotation side circuit 11, and the motor M is connected to the power supply as shown in FIG.
As shown in ``, only normal rotation is continuous rotation in one direction.

When the second switch 2 is closed, the automatic reversing switch T1 is connected to the power supply via the conductor 14, and the movable contact 5 connects the contact 16 of the forward rotation side circuit 11 and the contact 17 of the reverse rotation side circuit 12.
According to the automatic switching contact, the motor M repeats forward rotation for 26 seconds, rest for 4 seconds, and reverse rotation for 26 seconds, as shown in FIG. 3 "2".

When the third switch 3 is closed, the switch 7 contacts the contact 26 at the same time, the switch 8 is closed, and the automatic reversing switch T2 is connected to the power supply via the conductor 15.
Another normal rotation side circuit is formed by the series circuit of the conductor wire 20 and the conductor wire 23, and another reverse rotation side circuit is formed by the series circuit of the conductor wire 21 and the conductor wire 24.

Therefore, based on the automatic switching contact between the contact 18 of the forward rotation side circuit and the contact 19 of the reverse rotation side circuit by the movable contact 6,
The motor M rotates normally for 10 seconds as shown in Figure 3 "3".
Pause for 1 second, then reverse for 10 seconds and repeat.

When the fourth switch 4 is closed, the switch 7 contacts the contact 25 and the switch 8 is opened), and the contact 18 of the automatic reversing switch T2 is connected to the other automatic reversing switch T1 via the conductor 20 and the conductor 22. It is connected to the movable contact 5.

Therefore, one automatic reversing switch T2 is connected to the motor M under the control of the other automatic reversing switch T1.

Power is supplied to the motor M only for the 10 seconds when the movable contact 6 is in contact with the contact 18 in the automatic reversing switch T2, but since the switch 8 is open, the motor M is supplied with power only during the 10 seconds when the movable contact 6 is in contact with the contact 19, and both before and after that time. Total 20 with 5 seconds each
No power is supplied to the motor M during the second period.

Furthermore, power is supplied to the motor M alternately to the forward rotation side circuit 11 and the reverse rotation side circuit 12 by the automatic reversal switch T1.

In other words, one cycle of the automatic reversing switch T2 is 30 seconds, while one cycle of the other automatic reversing switch T1 is 1 minute, so when the movable contact 6 contacts the contact 18 at a certain point, the other movable contact 5 Even if the movable contact 5 is in contact with the contact 16, the next time the movable contact 6 contacts the contact 18, the movable contact 5 will be in contact with the contact 17.

Note that since it is difficult in terms of construction to bring both rotating contacts 5 and 6 into contact with each other at the same time, the operation of movable contact 6 is delayed by t (FIG. 2).

Therefore, as shown in FIG. 3 "4", the motor M repeats forward rotation for 10 seconds, rest for 20 seconds, and reverse rotation for 10 seconds.

The water flow caused by the rotation of this motor is novel and unprecedented.

Conventionally, automatic reversing water flow has been proposed in which either the forward or reverse rotation is stopped, but in this case, the result is only intermittent rotation in one direction.

One of the water streams obtained by embodying this invention is suitable for overflow type rinsing operations.

10 seconds of forward rotation stirs the items to be washed in the water, 20 seconds of pause causes bubbles and detergent components in the water to rise to the surface of the water and flow out from the overflow port, and the next 10 seconds of reverse rotation removes the washing caused by the previous normal rotation. It untwists objects and stirs the objects being washed in water.

This allows for effective rinsing without twisting the items to be washed, and is also effective in saving electricity.

As described above, the four stages of water flow by changing the rotational direction of the motor or the rotational direction switching cycle are selectively used depending on the agitation action and the thickness of the fiber or fabric.

For example, the water flow selected by switch 1 of the water flow selection switch S is selected for particularly thick fabrics such as linen or cotton, and the water flow selected by switch 2 is selected by switch 3 for fabrics of normal thickness such as cotton. The water flow is suitable for chemical fibers, etc., and the water flow selected by switch 4 is suitable for the rinsing operation as described above, as well as for very delicate chemical fibers.

By combining each of the above four stages of water flow with rotational speed switching by two-stage pole number conversion of motor M, a total of 8
It is possible to achieve a step-wise flow, and the diversification of fibers can be dealt with more precisely.

In addition, in the above embodiment, the constant rotation water flow by switch 1 of the water flow selection switch S is not a water flow that can be achieved due to the essential constituent elements of this invention, but when embodying this invention, in addition to expanding the uses of the washing machine, This is added to the example as a water stream whose presence is preferable.

As described above, this invention not only makes it possible to obtain an automatic reversal water flow by controlling each automatic reversal switch alone, but also
It is possible to obtain a rinsing operation in which the machine rotates for a short time and pauses for a long time, and an automatically reversing water flow that is suitable for delicate chemical fibers.

[Brief explanation of the drawing]

Figure 1 is an electrical circuit diagram of a washing machine embodying this invention.
FIG. 2 is a changeover cycle direction of the automatic reversing switch, and FIG. 3 is a diagram showing changes in the rotational direction of the motor (water flow). Explanation of numbers, M: Pulsator drive motor, TTl, T
2: Automatic reversal switch, S: Water flow selection switch.

Claims (1)

[Claims] 1. A first automatic reversing switch that is alternately connected to the forward rotation side circuit and the reverse rotation side circuit of the pulsator drive motor at a predetermined cycle; and a switching cycle of the first automatic reversal switch. a second automatic reversing switch that is alternately connected to the forward rotation side circuit and the reverse rotation side circuit at a cycle that is an integral multiple; and a first water flow selection that connects each automatic reversal switch individually to the pulsator drive motor. One circuit of the forward rotation side circuit and the reverse rotation side circuit which are switched and connected by the switch group and the second automatic reversing switch is opened, and the other circuit is connected in series with the first automatic reversing switch to drive the pulsator. a second water flow selection switch group connected to the motor for automatic reversal, and the automatic reversal water flow is controlled independently by each automatic reversal switch, and the first automatic reversal switch controls the energization of the other circuit in the second automatic reversal switch. This washing machine is capable of selectively obtaining short-time energization, long-period automatic reversing water flow, which is alternately applied to the normal rotation side circuit and the reverse rotation side circuit of the motor through the motor.