JPS585076B2 - Automatic washing machine control device - Google Patents

Description

Detailed Description of the Invention The present invention provides an automatic washing machine that automatically controls a series of processes such as washing, draining, rinsing, etc. by opening and closing a group of cam switches using a group of cams rotated intermittently by a timer motor. Regarding
In addition to automatically performing the entire process, it is also possible to stop the process as many times as you like at any point during the entire process using a single cam switch, and it is also possible to restart the process by simply pressing a button without having to operate the timer. It is something to do.

This will be explained below based on the drawings.

Figure 10 is an electrical circuit diagram, where 30 is a power supply, 31 is a rotor (
32 is a water supply solenoid valve; 33 is a drain solenoid valve; 34
35, 36° 37 is a "full course" water level switch that detects the water level of the outer tank (not shown) that houses the washing and dewatering tank and switches from the NC contact to the NO contact when it reaches the specified water level.
, a switch that is opened and closed as shown in Fig. 12 by operating the three push buttons ``separate operation'' and ``off.'' 1 is a timer motor, which is intermittently rotated by a group of cams to be described later. Cam switch group 38.3
9°40.41 is opened and closed according to the programming diagram in FIG.

Reference numeral 42 denotes a reversing cam switch which is switched in a relatively short cycle by a cam which will be described later and which is continuously rotated by the timer motor 1, and is used to automatically reversely rotate the rotor blade.

When the "full course" button of the push buttons is pressed, the changeover switch 37 closes to the b contact, and the main cam switch 3
When 8 is closed, all processes from washing to dehydration are carried out automatically. However, when the "separate operation" button is pressed, the selector switch 37 closes to the a contact, so the cam switch 39 changes to the a
It will operate only while the contact is closed.

That is, when the a contact of the cam switch 39 is opened, the operation is stopped, and in the embodiment shown in the figure, the operation is stopped once during the washing process.

That is, the a contact 43 of the cam switch 39 acts as a stop cam switch.

Also, when the "off" button is pressed, the switch 35 is opened and the operation is stopped at that point.

Furthermore, if you press the "Full course" and "Separate driving" buttons,
The switch 36 momentarily closes to the a contact and momentarily drives the timer motor 1.

The present invention is characterized by the process in which the stop cam switch 43 is opened, and the characteristics will be explained below starting from the configuration of the timer.

1 is a timer motor attached to the base plate 2; 3 is a gear coaxial with a pinion 4 rotated by the timer motor 1; 5 is a gear 7 that is rotatably supported on the base plate 1 by a hollow shaft 6 and meshes with the gear 3 on the outer periphery. A cam drive body that integrally has
The timer motor 1 rotates once every 60 seconds, for example.

A first cam group 8 is further provided on the outer periphery of the cam drive body 5, and this cam group 8 operates the first contact plate group 9 to activate the first contact plate group 9.
Controls the cam switch group.

10 is a terminal of the first cam switch group. The reversing cam switch 42 is one of this first cam switch group.

Reference numeral 11 denotes a cam cylinder fixed to a shaft 12 whose one end is inserted into the hollow shaft 6. One end of this cam cylinder is fitted into the cam drive body 5, and a ratchet gear 13 is mounted on the inner surface of this one end.
are integrated.

While the cam driving body 5 continuously rotates once every 60 seconds, the cam barrel 11 is rotated little by little intermittently, and a second cam group 14 is provided on its outer periphery. The second contact plate group 15 is actuated by the group 14 to control the second cam switch group such as the cam switches 38, 39°40.41, etc.

16 is a terminal of the second cam switch group.

An operating knob (not shown) is attached to the other end of the shaft 12.

Next, the intermittent drive mechanism of the cam cylinder 11 will be explained.

Inside the cam drive body 50 on the board side, there is a feed pawl lever 1.
7 and presser lever 18 are pivotally supported by support shafts 19 and 20, respectively.

The ratchet gear 13 is attached to the tip of the feed pawl lever 17.
A pawl 21 is formed which engages with the cam cylinder 11 to rotate the cam cylinder 11 intermittently, and a first protrusion 22 is provided to protrude from the back side of the pawl 21.

On the other hand, there is an inclined surface 23 at the tip from the back side of the tip of the presser lever 18.
A second protrusion 24 having a
, 24 protrude from a fan-shaped opening 25 provided on the end surface of the cam drive body 5 on the substrate side, and are positioned between the cam drive body 5 and the substrate 2.

A spring 26 is wound around the protrusion 27 of the presser lever 18, and one end of the spring 26 is engaged with the presser lever, and the other end is engaged with the feed pawl lever 17.

Then, turn the presser lever 18 clockwise, that is, the second protrusion 2
4 is biased toward the center, and this second protrusion 24
comes into contact with the first protrusion 22, so that the feed pawl lever 1
7 in the counterclockwise direction, and is normally in the state shown in FIG.

A third protrusion 29 having an inclined surface 28 is protruded from the substrate 2 so as to be located between the substrate and the cam drive body 5, and this inclined surface 28 is in contact with the inclined surface 23 of the second protrusion 24. They are designed to touch each other.

When the timer motor 1 is driven, the cam drive body 5 is rotated in the direction of the arrow in FIG.
contact with the inclined surface 28 of.

Since the cam drive body 5 still rotates, the second protrusion 24 slides on the inclined surfaces 23 and 28 and rides on the third protrusion 29, which means that the presser lever 18 rotates counterclockwise against the spring 26. It moves me.

At this time, the feed pawl lever 17 has the first protrusion 22 and the third protrusion 29.
It is not rotated because it is touching.

(State in Figure 4) When further rotated, the first protrusion 22 moves to the third position as shown in Figure 5.
Since it comes off the protrusion 29, the feed pawl lever 17 is released from the spring 26.
It is rotated clockwise by the force of , and its pawl 21 engages with the ratchet gear 13 of the cam cylinder.

This engagement causes the cam barrel 11 to rotate together with the cam drive body 5.

When the second protrusion 24 eventually comes off from the third protrusion 29, the sixth protrusion 24
As shown in the figure, the presser lever 18 is rotated clockwise by the spring 26, and the feed pawl lever 17 is further rotated counterclockwise by the second protrusion 24 pushing the first protrusion 22.
The pawl 21 is disengaged from the ratchet gear 13, and the rotation of the cam cylinder 110 is stopped.

By repeating the above operations, the cam cylinder 11 is intermittently rotated each time the cam drive body 5 rotates once.

Now, among the cam group 14 provided on the cam cylinder which is intermittently driven in this way, the stop cam 44 that controls the stop cam switch 43 has a stop cam switch 4 as shown in FIG.
3 is provided, and an operator 47 for operating the movable contact piece 46 of the stop cam switch is provided on this step 45, and an operator 47 that operates the movable contact piece 46 of the stop cam switch is depressed during intermittent rotation of the stop cam (cam barrel). The switch 43 is opened when the switch 43 is opened.

That is, in the figure, if angle A is one intermittent rotation angle, the step portion 45 having its outer peripheral angle B is provided within this angle.

FIG. 7 shows the closed state immediately before the stop cam switch 43 opens in the middle of the washing process. From this state, as the stop cam switch 43 rotates intermittently in the direction of the arrow, as shown in FIG.
3 will be opened.

Assuming that the "separate operation" button is pressed now and the changeover switch 37 is closed to the a contact, the timer motor 1 is stopped and the cam drive body 5 and cam barrel 11 are moved so that the pawl 21 engages with the ratchet gear 13. The cam barrel stops while rotating.

In order to close the stop cam switch 43 again from this state, the timer motor 1 must be driven to rotate the cam drive body 5 to complete one intermittent rotation operation of the cam barrel 11 which has stopped midway. For example, the operator 47 can climb up the stepped portion 45 and come to a position as shown in FIG. 9 to reclose it.

The time required to drive the timer motor 1 for this re-closing may be the time required to complete one intermittent rotational movement of the cam barrel 11, and this time may be very short, for example 0. It may take about .2 to 0.3 seconds.

Therefore, by simply driving the timer motor 1 instantaneously using an instantaneous switch, for example, the stop cam switch 43 can be closed again and operation can be restarted.

In this embodiment, a stepped portion is provided on the main cam (not shown) that controls the main cam switch so that the main cam switch 38 is also opened during one intermittent rotation in the same way as the stop cam switch is opened. The main cam switch can be closed simply by momentarily driving the timer motor.

Here, a method of using the washing machine of the present invention will be explained.

If you want to automatically complete the entire process, press the "Full Course" button as described above.

Then, the timer motor 1 is instantaneously driven through the a contacts of the switch 35 and the switch 36 to close the main cam switch 38, and the load circuit 48 is energized through the main cam switch 38 and the b contact of the changeover switch 37. We do everything from washing to final dehydration.

Next, if you want to wash your clothes in two parts (for example, for colored clothes and white clothes), press the "separate operation" button.

Then, the main cam switch 38 is closed as in the case of "full course", and the load circuit 48 is energized via the main cam switch 38, the a contact of the changeover switch 37, and the stop cam switch 43, and washing is performed.

When the washing process reaches the middle, the stop cam switch 43 opens as shown in FIG. 8 to stop the operation.

Then, take out the laundry, put in the next laundry, press the "separate operation" button again to instantaneously drive the timer motor 1, close the stop cam switch 43 again as shown in Figure 9, and resume washing. do.

When the washing process is completed, the stop cam switch 43 is opened, that is, the cam switch 39 is closed to the b contact, and the operation is stopped.

Therefore, when you combine the laundry washed in the previous wash with the laundry washed this time and press the "Full course" button, the changeover switch 37 switches to the B contact, draining, rinsing... the final spin, and then pressing the "Full course" button. process can be carried out.

Therefore, since the washing is done in two parts, it is possible to prevent the color from staining the white items, and since the rinsing and spin-drying are done all at once, it is possible to save time and complete the work in a short time.

In the above embodiment, the stop cam switch 43 is opened in the middle of the washing process so that washing can be done twice. can be stopped.

Figures 13 and 14 are circuit and programming diagrams of another embodiment, in which case the "separate operation" is started again after the washing process is completed.
By pressing the button, the stop cam switch 43 is closed and the final rinsing process is automatically performed, and by further pressing the "separate operation" button, the final dewatering process can be performed.

As described above, according to the present invention, not only can the entire process be carried out automatically until the end, but also the operation can be stopped as many times as desired at different points during the entire process, for example, during the washing process. Many courses can be set, such as washing clothes multiple times or not performing the final spin-drying process to prevent damage to the clothes.

Moreover, many such courses can be made with one stop cam switch, and the cost can be reduced without increasing the number of cam switches or selection switches.

To resume operation once stopped, the timer motor can be instantaneously driven by a manual switch that closes instantaneously, and operation is easy as only one button operation is required without turning the timer knob. It is.

Furthermore, the manual switch for restarting operation can be an instantaneous switch, so a simple switch can be used, which has excellent effects.

[Brief Description of the Drawings] Figures 1 to 9 show a timer used in the automatic washing machine of the present invention, and Figure 1 is a front sectional view showing the inside of the timer based on the line Figure 2 is a partially cutaway side view of the timer, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, and Figures 4 to 6 are cross sections corresponding to Figure 3 showing different operating states. 7 to 9 are front views showing different operating states of the stop cam switch and the stop cam, FIG. 10 is an electric circuit diagram of the automatic washing machine of the present invention, and FIG. 11 is the same programming diagram, Figure 12 is a diagram of the relationship between the interpolation button and the switch.
FIGS. 13 and 14 are electrical circuit diagrams and programming diagrams showing another embodiment. 1... Timer motor, 38... Main cam,
48...Load circuit, 37...Manual changeover switch, 4
3...Stop cam switch, 44...Cam, 45.
...Stepped section, 36...Manual switch.

Claims (1)

[Claims] 1. In an apparatus that automatically controls a series of processes such as washing, draining, rinsing, etc. by opening and closing a group of cam switches using a group of cams rotated intermittently by a timer motor, the main cam switch is One contact of a manual changeover switch is inserted between the load circuits, and a stop cam switch is inserted between the other contact of the changeover switch and the load circuit, and the cam that controls the stop cam switch is connected to the stop cam switch. A stepped portion is formed to open the stop cam switch within the rotation range during intermittent rotation, and the timer motor is instantaneously driven by a manual switch to rotate the cam and open the stop cam switch. A control device for an automatic washing machine that allows it to close again. 2. The control device for an automatic washing machine according to claim 1, wherein the stop cam switch is opened at least once during the washing process. 3. The control device for an automatic washing machine according to claim 1, wherein the stop cam switch is opened at the end of the final rinsing step.