JPH03218797A - Washing machine - Google Patents

Abstract

PURPOSE:To prevent the switching operation of a rinse mode from being forgotten as much as possible by providing the operation knob of a timer so as to be put in/out between a position protruding to an operation panel and a position almost flush with the operation panel and switching the rinse mode to either a water pool rinse mode or a water pour rinse mode by changing the position of the knob. CONSTITUTION:When executing water pool rinse after draining water in a washing tank, an operation knob 12 is turned in the state of protruding it and rinse operation time is set. In such a case, since the operation knob 12 is protruding and a microswitch 26 is turned on, a water feeding valve 8 is interrupted and water supply is stopped. Afterwards, the water pool rinse operation is executed for the set time. On the other hand, ' when water pour rinse is executed, the knob 12 is turned in the state of protruding it and the rinse operation time is set. Afterwards, the knob 12 is pushed and set in a almost flush with an operation panel 10. In such a case, since the microswitch 26 is turned off, the water feeding valve 8 is still electrified and water is continuously supplied into the washing tank. Then the water pour rise operation is executed for the set time.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides a method in which a motor is energized and cut off for a limited time by a timer, and a washing or rinsing operation is performed based on the rotational drive of the motor. Regarding washing machines.

(Prior Art) In a washing machine, for example, a two-tub washing machine, when performing a rinsing operation, there are two rinsing modes: a preliminary rinsing mode and a water pouring rinsing mode.

In the pre-rinsing mode, after water is poured into the tank to a predetermined water level, a rinsing operation is performed with the water injection stopped. In the water injection rinsing mode, after water is injected into the tank to a predetermined water level, a rinsing operation is performed while continuing to inject water.

The operation panel is provided with a mode switching means, such as a changeover switch, and by operating this changeover switch, the mode can be changed over to either of the above two modes.

(Problem to be Solved by the Invention) However, in the conventional configuration described above, since the changeover switch is a switch that is not very noticeable on the operation panel, it is easy to forget to operate the changeover switch, that is, forget to change the rinse mode. There were many. For this reason, operation is performed in the same rinse mode that was switched during the previous operation. For example, if the mode is switched to water rinsing mode, water rinsing will be performed even if a pre-rinse would be sufficient, resulting in the problem of a large amount of water being wasted. there were. On the other hand, when the mode is switched to the pre-rinsing mode, the pre-rinsing is performed even when water injection rinsing should be performed, resulting in insufficient rinsing.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a washing machine that can prevent forgetting to switch the rinse mode as much as possible.

[Structure of the Invention] (Means for Solving the Problems) The washing machine of the present invention is configured such that the motor is energized and cut off for a limited time by a timer, and the washing or rinsing operation is performed based on the rotational drive of the motor. an operating knob for setting the timer time of the timer, which is movable between a position protruding from the operating surface and a position substantially flush with the operating surface, and a position between the two positions of the operating knob; The present invention is characterized in that it includes mode switching means for switching the rinsing mode to either the test rinsing mode or the water injection rinsing mode.

(Operation) According to the above means, the rinsing mode is switched to either the trial rinsing mode or the water injection rinsing mode by changing the position of the timer operation knob between two positions. That is, the protruding state of the operating knob corresponds to either the pre-rinsing mode or the water pouring rinsing mode. Now, when performing the rinsing operation, the operating knob must be operated in order to set the timer time, so the operating knob must be made to stick out. In other words, if the operating knob is substantially flush with the operating surface, an operation that causes the operating knob to protrude is always performed. Therefore, the user always switches the rinsing mode to one of the modes when performing the rinsing operation, so there is no chance of forgetting to switch the rinsing mode or erroneously operating the rinsing mode.

(Example) Hereinafter, a first example of the present invention will be described with reference to FIGS. 1 to 5.

First, in FIG. 2, a washing tank 2 and a dewatering tank 3 are provided in an outer box 1 of a two-tub washing machine.

A stirring body (not shown) provided in the washing tank 2 is rotationally driven by a washing motor 4. A dehydration tank 5 provided in the dehydration receiving tank 3 is rotationally driven by a dehydration motor 6.

An operation box 7 is provided in a flat manner at the upper rear part of the outer box 1, and inside this operation box 7 are a water supply valve 8 for supplying water to the washing tank 2 and a water supply valve 9 for supplying water to the dehydration tank 5. is provided. These water supply valves 8 and 9 are electromagnetically driven water supply valves.

The operation panel 10, which is the upper surface of the operation box 7, is provided with an operation knob 12 for a wash timer 11 (see FIG. 3), an operation knob 3 for changing water flow, and an operation knob 14 for a dehydration timer (not shown). It is being

The washing timer 11 is a motor-type timer, and as shown in FIG.
have. The washing timer 11 causes the washing motor 4 to be energized and cut off for a limited time.

By rotating the operation knob 12, the timer time of the wash timer 11 is set. A water supply joint 17 is provided on the operation box 7 to the right of the dehydration timer operation knob 14, and a water supply hose 18 is connected to this water supply joint 17.

Here, the operation knob 12 will be explained in detail with reference to FIGS. 3 and 4. As shown in FIG.
A shaft 19 for setting a timer time according to the rotation angle is protruded from the upper part of the shaft 19 . A base body 20 of the operating knob 12 is fitted and fixed to the upper end of this shaft 19. A movable member 21 is provided on the base body 20 so as to be movable in the vertical direction in FIGS. 3 and 4. A compression coil spring 22 is interposed between the movable member 21 and the base body 20, and the movable member 21 is always urged upward by the compression coil spring 22. On the outside of the movable member 21, there is a knob 23a (first
A cover member 23 having a cover (see figure) is fitted and attached. The operation knob 10 is formed with a through hole 10a through which the cover member 23 is inserted and rotated. As shown in FIG. 1, the operating knob 12 is located at a position protruding from the upper surface of the operating panel 10, which is an operating surface, with the movable member 21 positioned upward. Further, as shown in FIG. 4, the operating knob 12 is located at a position substantially flush with the upper surface of the operating panel 10 when the movable member 21 is located downward.

Here, the movable member 21 is moved from an upward position to a downward position by a lock pin 24 attached to the movable member 21 and a so-called heart-shaped cam 25 formed on the right side of the base body 20 in FIG. When pushed into this position, it is held in the downward position. When the movable member 21 is pushed further in the downward position, it returns to the upward position and is held in this state.

On the other hand, as shown in FIG. 3, on the right side of the operation knob 12 and wash timer 11 in the operation box 7, for example, a microswitch 26, which is a mode switching means, is arranged. As shown in FIGS. 3 and 4, this microswitch 26 is opened when the operating knob 12 is in a protruding position, and is closed when the operating knob 12 is in a position where the cheeks are flush with each other. It has become.

Further, in FIG. 5 showing the electrical configuration, power busbars 28 and 29 are led out from a plug 27 connected to a commercial AC power source. A timer switch 15, a microswitch 26, a water supply valve 8, a water level switch 30, a timer motor 16, and an automatic reversing switch 3 are connected between the power supply buses 28 and 29.
1 and a washing unit 4 are connected as shown in the figure.

The water level switch 30 detects the water level in the washing tank 2,
When a predetermined water level is exceeded, the contacts (Co-No) are turned on; otherwise, the contacts (Co-NC) are turned on. The automatic reversing switch 31 is configured to turn on alternately between contacts (c-a) and between contacts (c-b) to rotate the washing motor 4 in forward and reverse directions. Also, wash timer 1
The timer switch 15 of No. 1 is closed when the timer time is set, and is opened when the timer time ends.

Next, the operation of the above configuration will be explained.

First, when performing a washing operation, the operating knob 12 of the washing timer 11 is set in a protruding state, and in this state, the operating knob 12 is
Rotate to set the washing time.

As a result, in FIG. 5, the timer switch 15 closes and the water level switch 30 closes the contact (CO-NC).
Since the current is on, the water supply valve 8 is energized and water is supplied into the washing tank 2. Thereafter, when the water level in the washing tank 2 exceeds a predetermined water level, the water level switch 30 is turned on between the contacts (CO-No), the washing motor 4 and the timer motor 16 are energized, and the washing operation starts. In this case, since the operating knob 12 is protruding, the microswitch 26 is open, and the water supply valve 8 is cut off and the water supply is stopped. Then, the washing operation is performed for the set time.

Next, when rinsing is to be performed after draining the inside of the washing tank 2, the operating knob 12 is rotated in a protruding state to set the rinsing operation time. Here, when performing rinsing in the pre-rinsing mode, the operating knob 12 remains in the protruding state. As a result, the timer switch 15 is closed, and since the water level switch 30 is on between its contacts (Co-NC), the water supply valve 8 is energized and water is supplied into the washing tank 2. After this, when the water level in the washing tank 2 exceeds the predetermined water level, the water level switch 3
0 is turned on between the contacts (CO-NO), the washing motor 4 and the timer motor 16 are energized, and the rinsing operation starts. In this case, since the operating knob 12 is protruding and the microswitch 26 is open, the water supply valve 8 is cut off and the water supply is stopped. After this, a rinsing operation is performed for a set time.

On the other hand, when rinsing is performed in the water injection rinsing mode, after draining the inside of the washing tank 2, the operation knob 12 is rotated with the protruding L7 state to set the rinsing operation time.

After this, the operation knob 12 is pushed in so that it is almost flush with the operation panel 10. As a result, the timer switch 15 closes, and the water level switch 30 contacts (C
o-NC), the water supply valve 8 is energized and water is supplied into the washing tank 2. In this case, since the operation knob 12 is flush with the operation panel 10, the microswitch 26
is closed. Thereafter, when the water level in the washing tank 2 exceeds a predetermined water level, the water level switch 30 is turned on between the contacts (Co-No), the washing motor 4 and the timer motor 16 are energized, and a rinsing operation is started. In this case, since the microswitch 26 is closed, the water supply valve 8 remains energized, and water continues to be supplied into the washing tank 2. Therefore, after this, water injection rinsing operation is performed for a set time.

According to this embodiment having such a configuration, the rinsing mode is switched to either the trial rinsing mode or the water pouring rinsing mode by changing the position of the operating knob 12 of the wash timer 11 between two positions. As a result, when switching the rinse mode, the highly visible operation knob 12 of the wash timer 11 is used. Since the conspicuous operation knob 12 is operated in and out, the user can clearly see which rinse mode is being switched. Therefore, it is possible to prevent the user from forgetting the above switching as much as possible.

In the above embodiment, when performing a washing operation, the operating knob 12 is made to protrude in order to turn the operating knob 12 when setting the time of the washing timer 11. At this time, in the above embodiment, the pre-rinse mode is set when the operation knob 12 of the wash timer 11 is protruded, so the pre-rinse mode is always set when setting the time of the wash timer 11. Therefore, when performing a washing operation, it is possible to reliably prevent the occurrence of a situation in which the detergent liquid flows out due to continuous water supply.

6 and 7 show an embodiment '1s2 of the present invention, and differences from the first embodiment will be explained. M
6 and 7, the operation panel 10 is provided with a rinse operation timer operation knob 32 to the right of the water flow switching operation knob 13. This operation knob 32 is the first
It is configured similarly to the operation knob 12 of the embodiment. That is, the operation knob 32 can be moved in and out between a position where it projects with respect to the upper surface of the operation panel 10 and a position where it is substantially flush with the upper surface of the operation panel 10. By changing the position of the operating knob 32 between two positions, the rinsing mode can be switched to either the pre-rinsing mode or the water pouring rinsing mode. In this case, when the operation knob 32 is pushed out, the water injection rinsing mode is activated. When the operating knob 32 is held substantially flush, the mode can be switched to the rinsing mode. Note that 33 is a wash timer operation knob, and 34 is a dehydration timer operation knob. Therefore, in this second embodiment as well, substantially the same effects as in the first embodiment can be obtained.

[Effects of the Invention] As is clear from the above description, the present invention provides a timer operation knob that can be moved in and out between a position that projects with respect to the operation surface and a position that is flush with the operation surface. Since the rinsing mode is configured to be switched to either the trial rinsing mode or the water pouring rinsing mode by changing the position between two positions, an excellent effect is achieved in that forgetting the rinsing mode switching operation can be prevented as much as possible.

[Brief explanation of drawings]

Figures 1 to 5 show the first embodiment of the present invention, in which the ml diagram is a partial top view of the operation panel, Figure 2 is a breaking pressure surface diagram of the washing machine, and Figures 3 and 4 are FIG. 5 is a vertical sectional view showing different states of the operation knob of the wash timer, and FIG. 5 is an electric circuit diagram. 6 and 7 are a diagram corresponding to FIG. 1 and a diagram corresponding to FIG. 2 showing a second embodiment of the present invention. In the drawing, 4 is a washing motor, 10 is an operation panel, 11 is a washing timer, 12.32 is an operation knob, and 26 is a microswitch (mode switching means).

Claims (1)

[Claims] 1. In a device in which the motor is energized and cut off for a limited time by a timer, and washing or rinsing operation is performed based on the rotational drive of the motor, there is a position where the motor protrudes from the operating surface and a position where it is almost flush with the operating surface. an operating knob which is removable between the two and which sets the timer time of the timer; and a mode switching means which switches the rinsing mode between the rinsing mode and the water injection rinsing mode by changing the position of the operating knob between two positions. A washing machine characterized by comprising: