JPS6055157B2 - One-tank washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a one-tank washing machine, and particularly to a one-tank washing machine equipped with a finishing agent feeding device that is inexpensive and has stable performance.

The finishing agent dosing device in conventional single-tank washing machines is equipped with a special finishing agent container and a valve that can be opened and closed by a solenoid. During rinsing, the finishing agent in the container is poured into the washing tank by opening the valve with the solenoid. Some are equipped with a separate water supply valve, and during rinsing, the finishing agent in the container is poured into the washing tank with water through this water supply valve, and some are used in combination with the former and latter. , all require a solenoid or water supply valve to inject the finishing agent.
Furthermore, due to the structure of the container, accessory devices such as piping with a water supply valve and an outflow device to a washing tank are required, resulting in high costs.

In addition, the finishing agent itself for piping parts such as water supply valves has a high viscosity, so problems such as clogging of the piping are likely to occur after long-term use. An object of the present invention is to provide a one-tank washing machine that is simple in structure, inexpensive, and has a finishing agent feeding device with stable performance.

In the present invention, a saucer for temporarily storing the finishing agent during washing is provided at the top of the washing tank, and a reservoir is provided on the inner wall of the tank for temporarily storing the finishing agent that is scattered by centrifugal force when the washing tank rotates. By providing this, the finishing agent is introduced into the water tank using the centrifugal force generated by the rotation of the washing tank during dewatering before the final rinse.

Embodiments of the present invention will be described below with reference to the drawings.

The single-tank washing machine has an outer frame 1, a top cover 2 that covers the upper part of the outer frame 1, and an internal mechanical part 3 disposed inside the outer frame 1. is the outer frame 1
It is suspended by a vibration isolator 5 attached to a hanging rod 4 whose one end is fixed to a corner of the frame.

The internal mechanical part 3 is provided with a water tank 6 and a washing tank 7 concentrically with the washing tank 7 on the inside.

A pulsator 8 is located at the center of the inside bottom of the washing tank 7, and a clutch 9 is located at the center of the outside bottom of the water tank 6.
is mounted coaxially with. Further, a motor 10 is provided near the clutch 9 at the outer bottom of the water tank 6, and the clutch 9 is connected with a belt 11. During washing, the rotation of the motor 7 is transmitted to the pulsator 8 via the clutch 9, and during dehydration, the rotation of the motor 7 is transmitted to the washing tank 7. A tank cover 12 that covers the upper end of the washing tank 7 is attached to the upper end opening of the water tank 6. Further, a balancer 13 is disposed at the open end of the washing tank 7 to suppress vibrations of the internal mechanical parts due to load imbalance during dewatering. A receiving tray 14 is formed on the outer periphery of the upper end of the washing tank 7 near the opening side where the balancer 13 is attached.

Furthermore, a tank cover 12 attached to the upper end of the water tank 6
A receptacle 15 is provided in a part of the receptacle 15 corresponding to the position of the receptacle 14 . Further, a finishing agent inlet 16 is provided on the upper surface of the top cover 2 in correspondence with the position of the receptacle 15, and a control box 17 is provided at the rear of the top cover 2. In addition, a reservoir 19 having a drain groove 18 is formed on the inner wall of the water tank 6 all around the circumference.
The finishing agent scattered from the tray 14 by the rotation of the washing tank 7 can be temporarily stored therein. Built into the control box 17 is a timer T that controls a water supply valve W, a solenoid Mgl which switches the clutch 9 to each state of washing and dewatering; an operation display lamp PLl a drain pump P1 and a drain pump P by a timer motor TM. ing. The timer T is provided with cam switches CS1 to CS7, which are turned ON and OFF by the timer motor TM as shown in FIG. 4.

A reversing cam switch TCS inserted into the motor circuit rotates the motor M in the forward and reverse directions at regular intervals. A capacitor C is connected in parallel to the motor M. The pressure switch circle closes to the NO contact when water is supplied, and to the NC contact when there is no water.

The lid switch b is designed to open when the lid (not shown) is opened. Further, the buzzer BZ is energized by the cam switch CS6 when the dehydration is completed. Next, I will explain the effect. When a predetermined amount of finishing agent is put into the finishing agent inlet 16 of the top 4 cover 2, the finishing agent falls through the receiving hole 15 of the tank cover 12 into the receiving tray 14 on the upper part of the balancer 13 and is collected therein. In this state, the items to be washed and detergent are placed in the washing tank 7, and the cam switch CSla is turned ON to start operation. The water supply valve WV is activated by the cam switch CS4a to start water supply, and at the same time, the operation display lamp PL lights up. When a predetermined amount of water is supplied into the washing tank 7, the pressure switch circle switches from the NC contact to the NO contact, and at the same time as the water supply valve WV closes, the motor 10 is turned on, and the motor 10 is turned forward and reverse by the reversing cam switch TCS.
This forward/reverse force is transmitted to the pulsator 8 and washing begins.

At this time, the timer motor TM is also driven and the timer T advances. After a predetermined period of time, cam switch CS6b turns 0F.
F, the motor 10 stops, and at the same time the washing is completed, the drain pump P is driven by the cam switch CS7a, and the washing liquid is drained to the outside. As a result, the pressure switch circle returns from the NO contact to the NC contact. When the drainage is finished, the cam switch CS3a makes the solenoid Mgb≦
When activated, the clutch 9 becomes dehydrated, and the motor 10 is driven in one direction by the cam switch CS5b to rotate the washing tank 7.

As the washing tank 7 rotates, the balancer 13 and the saucer 14
The finishing agent in the tray 14 is also rotated, and the finishing agent in the tray 14 is discharged from the tray 14 by the centrifugal force. The discharged finishing agent moves down the inner surface of the water tank 6 and is received by the reservoir 19, and when the cam switch CS5b is turned 0FF, the motor 10 is stopped and the rotation of the washing tank 7 is also stopped.

Next, when washing is desired, rinsing is performed in the same manner, but the finishing agent in the reservoir 19 on the inner surface of the water tank 6 is mixed with the rinsing water and adheres to the clothes in the rinsing water, achieving the purpose.

The drain 18 is designed so that no rinsing water remains in the reservoir 19.
This is for discharging rinsing water during drainage and dehydration, and although most of the rinsing water in the reservoir 19 is generally discharged by vibration of the water tank 6 during dehydration, it is intended to ensure complete drainage. Furthermore, since the finishing agent has a high viscosity, it flows out of this drain 18 in a short time before being mixed with the rinsing water, and does not descend. When rinsing is completed, the rinsing liquid is drained, and finally the solenoid Mg is activated by the cam switch CS3a, the clutch 9 is put into the dehydration state, and the cam switch CS5b is activated.
The motor 10 is rotated in one direction, and the washing block 7 is rotated to perform dewatering.

Once the dehydration is complete, the entire series of washing steps is complete. According to this embodiment, the structure is extremely simple, without using a special solenoid-based valve opening/closing device, water supply valve, and piping equipment attached to these for the finishing agent dosing device as in the past. It is possible to provide a finishing agent injection device that does not increase costs and eliminates concerns about clogging of the finishing agent in piping.

The present invention provides a one-tank washing machine having the above-described configuration, and has the effect of providing a one-tank washing machine equipped with a finishing agent feeding device that is simple in structure, inexpensive, and has stable performance.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of the single-tank washing machine of the present invention, Fig. 2 is an enlarged partial sectional view of the main part of Fig. 1, and Fig. 3
The figure is an electric circuit diagram of the one-tank washing machine shown in FIG. 1, and FIG. 4 is a cam chart diagram showing the operation of the cam switch in the electric circuit diagram of FIG. 3. 6...Aquarium, 7...Washing tank, 8...
... Pulsator, 12 ... Tank cover, 13
...Balancer, 14 ...Saucer, 1
5...Socket, 16...Finishing agent input port, 18...Drainage groove, 19...Reservoir.

Claims (1)

[Claims] 1. In a single-tank washing tank comprising a washing tank having a pulsator at the bottom and a water tank surrounding the washing tank, a receiving tray for temporary storage of finishing agent is formed near the outer periphery of the upper end of the washing tank. In addition, a receptacle for introducing a finishing agent is provided at the upper end of the water tank corresponding to the receptacle of the washing tank, and a U for temporarily storing the finishing agent scattered by centrifugal force from the receptacle is provided on the inner wall of the aquarium. A single tank type, characterized in that a letter-shaped reservoir is formed around the entire circumference, the reservoir is provided at a position sufficiently lower than the saucer, and a plurality of slit-shaped drain grooves are formed in the reservoir. Washing machine.