JPS6241749Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea relates to washing machines.

With conventional washing machines that do not automatically carry out a series of processes such as water supply, washing, draining, and rinsing, if the operator does not stay close to the washing machine and monitor the end of the water supply while water is being supplied, excessive water supply may occur and the washing tank will drain. There was a risk of water overflowing.

This idea allows the solenoid valve or electric pump that supplies water to the washing tank and the pulsator drive motor to be selectively connected to the power source via a time switch, and only during the scheduled water supply time measured in advance in each household. The purpose is to prevent excessive water supply by operating a solenoid valve or electric pump using a time switch.

In the figure, 1 is the main body of the washing machine, which has a washing tank inside like a normal washing machine. Reference numeral 2 denotes a control box containing a time switch, etc., and is equipped with a water supply port 3 and an outlet 4 for supplying water to the washing tank.

Reference numeral 5 denotes an electromagnetic valve, which is connected and fixed to a water faucet 6, leads out a water supply hose 5a from the outlet side, and is provided with a power cord 5b with a plug 5c for supplying power to an electromagnet for driving the valve. 7 is an electric pump, and the one shown in the drawing is a submersible pump that is placed in a water tank 8 such as a bathtub, and the water supply hose 7 is connected from the discharge side.
A and a power cord 7b with a plug 7c for supplying power to a motor for driving an impeller. Each of the water supply hoses 5a, 7a can be removably connected to the water supply port 3, and the plugs 5c, 7c can be removably connected to the outlet 4.

In the electrical circuit diagram of FIG. 2, 9 is a plug connected to a power source, 10 is a motor that drives a pulsator provided in the washing tank, and 11 is a notification device, ie, a buzzer. 12 is a time switch, which has a main contact 12b that can be closed for an arbitrary period of time by rotating a manual operation knob 12a, similar to a normal spring-driven time switch, and a main contact 12b that closes several seconds before the main contact opens. It has an auxiliary contact 12c. Reference numeral 13 denotes a manual changeover switch, which has two sets of contacts 13b and 13 that are opened and closed by a manual changeover knob 13a.
It has c. One contact 13b is connected in series with the main contact 12b of the time switch together with the outlet 4, and the other contact 13c is connected in series with the main contact 12b together with the motor 10, and in parallel with the series circuit of the contact 13b and the outlet 4. . Buzzer 11 is connected to a series circuit of main contact 12b and auxiliary contact 12c.

The manual switching knob 13a is also connected to a drain valve,
As shown in FIG. 3, it has a "drain" operating position in which the drain valve is opened by rotational operation.

When the water supply hose and plug of the electromagnetic valve 5 or the electric pump 7 are connected to the water supply port 3 and the outlet 4, and the manual switching knob 13a is operated to the "water supply" position as shown in FIG. 3, the manual switching switch is activated as shown in FIG. Since the contact 13b is closed and the contact 13c is opened, the outlet 4 is connected to the time switch 1.
Connect to the power supply via 2. Therefore, the solenoid valve 5 or the electric pump 7 can be operated via the outlet 4 for an arbitrary time period set by the manual operation knob 12a of the time switch.

Although the minute flow rate of water supply and the lift height from the bathtub 8 to the water supply port 3 differ in each household, the time required to supply water to the washing tank is measured in advance, and the time switch 12 is set according to the measured time. By setting only the time, when the water supply to the washing tank is almost completed, the solenoid valve 5 or the electric pump 7
operation can be stopped. Furthermore, by increasing or decreasing the setting amount of the time switch 12, the amount of water supplied to the washing tank can be increased or decreased.

Since the auxiliary contact 12c closes several seconds before the set water supply time limit expires, the buzzer 11 sounds and performs a notification operation.

When the manual switching knob 13a is operated to the "wash/pre-rinse" position, the contact 13b is opened,
Since the contact 13c is closed, the motor 10 is connected to the power source via the time switch 12. Therefore, the motor 10 is operated for an arbitrary time period set by the manual operation knob 12a of the time switch to perform washing or pre-rinsing, and the buzzer sounds a few seconds before the time limit expires, as in a normal washing machine.

Further, when the manual switching knob 13a is operated to the "water pouring rinse" position, both the contacts 13b and 13c are closed, and a so-called water pouring rinse can be performed in which the motor is operated while water is being supplied.

Figures 5 and 6 show another embodiment, in which an opening 2a of the control box 2 through which the shaft of the time switch passes.
The indicator 14 is rotatably provided with appropriate friction. As described above, the water supply time measured in advance for each household can be indicated by moving the indicator 14 as appropriate.

In addition, in the case where the water supply hose 5a led from the solenoid valve 5 is connected to the water supply port 3 of the washing machine as in the above embodiment, by leading the water supply hose 5a to another water tank such as a bathtub, it is possible to control the water supply to that water tank. can be used.

As described above, this invention includes a water supply port 3 to which a water supply hose can be detachably connected, and a time switch 12.
Since it is equipped with an outlet 4 whose energization is controlled by The remaining hot water in the bathtub can be appropriately used for washing, and there is no need to stand next to the washing machine to monitor the end of the water supply as in the past, and it is possible to prevent water overflow due to excessive water supply. Moreover,
Since the time switch 12 that controls the operation of the pulsator drive motor 10 is used to time-limit the water supply to the washing tank, the solenoid valve 5 connected to the outlet 4 or the electric pump 7 is controlled in order to control the operation. There is no need to separately prepare a dedicated time switch, and it can be manufactured at low cost.

[Brief explanation of the drawing]

Figure 1 is a front view of a washing machine embodying this idea, Figure 2 is an electric circuit diagram, Figure 3 is an enlarged front view of the manual switching knob, and Figure 4 is an illustration of opening and closing the manual switching switch, marked with circles. indicates the contact is closed. 5th~
6 shows another embodiment, FIG. 5 is a partially enlarged front view of the control box, and FIG. 6 is a sectional view taken along line A--A in FIG. 5. Explanation of symbols, 5 is a solenoid valve, 7 is an electric pump, 1
0 is a motor, 12 is a time switch, and 13 is a manual changeover switch.

Claims (1)

[Scope of Claim for Utility Model Registration] A water supply hose 5a led from a solenoid valve 5 connected to a water faucet 6 or a water supply hose 7a led from the discharge side of an electric pump 7 that pumps water from a water tank 8 such as a bathtub can be attached and detached. a water supply port 3 for supplying water to the washing tank, and an outlet 4 to which the power plugs 5c and 7c of the solenoid valve 5 or the electric pump 7 are removably connected.
, a motor 10 that drives a pulsator provided in the washing tank, and a time switch 12 that closes the contact 12b for an arbitrary time period set by the manual operation knob 12a.
and a manual changeover switch 13 for selectively connecting the outlet 4 and the motor 10 to a power source via a time switch 12, and a solenoid valve 5 connected to the outlet 4 only for a time period set by the time switch 12. Alternatively, the washing machine is characterized in that the electric pump 7 is operated to control the water supply to the washing tank, and the motor 10 is operated for a time period set by the time switch 12 to perform the washing action.