JPS6310158Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a washing machine. 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 while water is being supplied to monitor the end of the water supply, the amount of water supplied may become excessive and the washing machine will not be able to wash. There was a risk that water would overflow from the tank.

This device uses a timer to notify the operator when the estimated water supply time has been reached, even if the operator is away from the washing machine.

In the figure, 1 is a timer, which includes a timer switch 1a that can be closed for an arbitrary period of time by rotating a manual operation knob 2, similar to a normal spring-driven timer, and a timer switch 1a that can be closed several seconds before the timer switch 1a is opened. auxiliary switch 1b. The time switch 1a is connected in series to the washing motor 3, and the auxiliary switch 1b is connected in series to an alarm, such as a buzzer 4, and its series circuit is connected in series with the time switch 1a and in parallel with the motor 3.

Reference numeral 5 denotes an operation knob for opening and closing the drain valve, and a string 7 is pulled and operated by a lever 6 fixed coaxially with the knob to open and close the drain valve.

A switch 8 is connected in series with the timer switch 1a and the motor 3, and in parallel with the auxiliary switch 1b and the alarm 4, and is opened and closed by the lever 6. In the operating range of the operating knob 5, the drain valve is opened at the "drain" position where the string 7 is pulled the most.
Open switch 8. In the "wash" position where the string 7 is loosened, the drain valve is closed and the switch 8 is closed by the lever 6. At the "water supply notification" position where the string 7 is further loosened, the drain valve is closed and the switch 8 is opened.

If you set the operation knob 5 to the "wash" position and operate the timer knob 2, the motor 3 will start and perform the washing operation, and a few seconds before the end of the set time, the auxiliary switch 1b will close and the alarm 4 will be activated. When the timer switch 1a is opened, the motor 3 and the alarm 4 stop operating.

When you set the operation knob 5 to the "Water supply notification" position and operate the timer knob 2, the motor 3 will not start because the switch 8 is open, but will start several seconds before the end of the time period set by the operation knob 2. In this case, only the alarm 4 operates. Therefore, since the water flow rate per minute differs in each household, measure the time required to supply water to the washing tank in advance, and turn the timer knob 2 at the same time as starting water supply.
By matching the measured water supply time to the measured water supply time, the alarm 4 can be operated to give a notification several seconds before the washing tank reaches the predetermined water level.

Reference numeral 9 is an indicator that indicates the pre-measured water supply time on the scale of the timer, and is rotatably supported in the opening 10a of the control panel 10 through which the timer shaft passes, and can be stopped at any position by friction.

As described above, this invention allows only the timer and alarm to notify the user of the end of the time limit without operating the washing motor. At the end of the estimated time, an alarm can be operated to notify the worker. Therefore, it is possible to prevent an accident in which water overflows from the washing tank due to excessive water supply. It can also be used for purposes other than washing machines, such as notifying the end of the cooking time and notifying the end of the estimated time for water supply to the bathtub.It has a wide range of uses and is of great practical value.

[Brief explanation of drawings]

FIG. 1 is an electrical circuit diagram of the washing machine of this invention, FIG. 2 is a front view of the control panel, and FIG. 3 is a sectional view taken along the line -- in FIG. Explanation of the symbols: 1 is a timer, 1a is a time switch, 1b is an auxiliary switch, 2 is an operating knob, 3 is a washing motor, 4 is an alarm, and 8 is a switch that can be opened and closed at will.

Claims (1)

[Scope of utility model registration request] A timer switch 1a, which can be closed for an arbitrary period of time using a manual operation knob 2, is connected to the washing motor 3, and a series circuit between the auxiliary switch 1b, which is closed immediately before the timer switch 1a opens, and the alarm 4 is timed. A switch 8 is provided, which is connected in series with the switch 1a and in parallel with the washing motor 3, and which is connected in series with the timer switch 1a and the washing motor 3, and in parallel with the auxiliary switch 1b and the alarm 4, and can be opened and closed at will. Washing machine.