JPS606676B2 - dehydration washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a fully automatic washing machine with a built-in taper-shaped washing machine and dewatering tank, which is rotated to drain washing water from its upper part to the water tank side. If the amount of washing water pumped into the water tank exceeds the drainage capacity of the drain hose, this water will accumulate in the water tank during draining, and this will brake the rotation of the washing and spinner tank. This study focuses on the fact that drainage efficiency deteriorates as a result.

To solve this problem, we installed a water reservoir at the bottom of the water tank to temporarily store the water that cannot be covered by the drainage capacity of the drain hose, so that the water level on the water tank side does not become a resistance to the rotation of the washing and dehydration tank. It is also a single performance. However, according to this, the aquarium must be made larger, and the outer tank (which may also be used as both the aquarium and the outer tank) itself must also be made larger, and this cannot be said to be an optimal idea. In addition, when the washing and dehydration tank is continuously rotated during drainage, the washing water that remains at the bottom of the tank is swept away by the washing groove and dehydration tank, which foams the detergent mixed into the previous washing water and causes extreme This may cause cream-like foam and cause the washing and dehydrating tub to become locked.

Therefore, the present invention has been devised to improve drainage efficiency without daring to add any special measures to such a water tank.The washing/dehydration tank is rotated during draining, but it is not continuously driven to rotate. This invention relates to a washing and dehydrating machine in which the rotational speed of a washing and dehydrating tank is intermittently driven to repeatedly increase and decrease, so that water intermittently flows out to the water tank side.

FIG. 1 is a cross-sectional view of a main part of a single-tank fully automatic washing machine that is an embodiment of the present invention.A water tank 1 is suspended in an outer tank by a vibration isolation mechanism, and a pulsator 2 is arranged at the center of the bottom. A conical washing and dehydrating tank 3 is rotatably installed, and when draining water, this washing and dehydrating tank has no holes (it is optional to provide a hole in the upper part).

) 3 is rotated to cause the washing water 4 to flow out from the top to the water tank 1 side, and to be discharged from the bottom of the water tank 1 to the outside of the machine via the drain hose 5. In addition, during dewatering, this washing/dehydrating tank 3 is continuously rotated at high speed to drain water from the laundry 6. By the way, a single-tank fully automatic washing machine with a no-hole washing and dehydrating tank that is generally available on the market has a washing capacity of 2.5k9.
The amount of water used for washing with a water ratio of 10 is set at 25 cm, and during washing or rinsing, the pulsator installed at the bottom of the washing and dehydrating tub is set at 45 cm. p. Rotate 20,000 sand clockwise with a rotation speed of m, stop for 3 seconds, change the direction of rotation alternately with a 3 second pause, such as "20,000 sand counterclockwise, stop for 3 seconds", so-called reverse spiral Nada Azusa. Running a wash.

In addition, when draining water, a drain port is provided at the bottom of the washing and dehydrating tank that is suitable for the water tank side, and when dehydrating, the washing and dehydrating tank is driven at high speed and the water flows out from the top of the tank to the water tank by a pumping method. ing. The fully automatic washing machine shown in FIG. 1 according to the present invention performs washing, rinsing and dehydration in the same way as conventional ones, and the drain is not provided with a drain at the bottom of the washing/dehydration tank 3, but flows from the top to the water tank 1 side by rotation. This pumping and draining system eliminates the conventional drain valve and provides a reliable washing machine that also solves the problem of noise.Figure 2 is similar to Figure 1. This is an electric circuit built into a fully automatic washing machine, and each of the cam switches So to S4 is sequentially selected from the washing process to the final spin-drying process according to the chart in Fig. 3, with the hatched areas shown as closed. Switched.

R. S is a reversing cam switch for rotating the pulsator 2 alternately in forward and reverse directions during washing or rinsing, and as shown in Fig. 4, the cam switch is designed so that the rock points a and b can be selected with a neutral point of 3 seconds in between. The above cam switches So to S4 are integrated into the time switch 7, and the timer motor T.
It is also rotated by M. Furthermore, in this electric circuit, 8 is a water level switch, and as a pre-work of the washing process, power is supplied to the water supply valve 9 through its NC contact and the a contact of the cam switch S3, and a predetermined amount of water is supplied to the washing and dewatering tank 3. When a predetermined amount of water is supplied, the NC contact switches to the NO contact, and the timer motor T. Power is supplied to the motor for washing and dewatering through the a contact of the M cam switch S2, and the pulse generator 2 is operated at 45 m.p.m. p. It rotates at a rotational speed of m to start the washing work. Washing work is a. b
Reversing cam switch R. which alternately switches the contacts. S rotates the pulsator 2 clockwise for 27 seconds, pauses for 3 seconds, rotates counterclockwise for 20,000 sand, pauses for 3 seconds, and alternately rotates the pulsator 2 in reverse with a pause of 3 seconds in between, thereby performing efficient washing using the so-called reverse water flow. When entering the draining process following the washing process, the timer motor T. M, power is supplied to the motor 10 for washing and dewatering. Here, the washing/drying motor 0 is continuously supplied with power through the a contact of the cam switch S2, but the reversing cam switch R. Cam switch S inserted on the a rear point side of S
4 is involved in this drainage process, the motor 10 is connected to the reversing cam switch R.4. Power will be supplied only from the S contact b side. This means that during the draining process, the motor 10 rotates only in one direction, and intermittently rotates in two directions with sand power supplied and three nail sand non-powered alternately. By intermittent driving of the washing and dewatering motor 10, the rotation of the washing and dewatering tank 3 is controlled by the rotation of the reversing cam switch R as shown in the chart of FIG. As shown in correspondence with the switching of the S contact, the 20,000 sand on the B contact side is driven to rotate and gradually increases the number of rotations (indicated by x), but for the next 3 seconds the 2A sand and A contact are in the neutral position. , during the 3-second neutral period, the power supply to the motor 11 is cut off, resulting in only inertial rotation, and the number of rotations is gradually reduced (indicated by y). Repeat three times during the process. The washing and dewatering tank 3 intermittently causes the washing water 4 to flow out from its upper part to the water tank 1 side by this intermittent rotational drive. The washing water 4 that has flowed out to the water tank 1 side is drained out of the machine sequentially according to the drainage capacity of the drain hose 5, and the water exceeding the drainage capacity remains at the bottom of the water tank 1, but the washing water and dehydration tank 3 rotates. The entire outflow is drained during the period of inertial rotation (between 3 lactic acids) where the number decreases,
Therefore, the washing water that remains in the water tank 1 does not put a large load on the rotation of the washing/dehydration tank 3 and the rotation is braked and locked, but the washing water rotates smoothly and drains water efficiently. To further explain this drainage method, the washing and dewatering tank 3 containing laundry and washing water.
is quite heavy, and therefore, when rotating the washing and dewatering tub 3 via the motor 101 and the transmission mechanism,
Since a large load is applied to the motor 101, it takes a certain amount of time to reach the rotational speed necessary to cause the water in the tank 3 to flow out from the top.

During the time allotted for the drainage process, when the washing and dewatering tank 3 is intermittently rotated, the driving time and non-driving time, as well as the number of repetitions thereof, shall be set as per the entrustment. It is necessary to take into account the limitations of drainage capacity, unnecessary brakes or foam locks in the washing/dehydration tank 3, and avoidance of unnecessarily prolonging the drainage process time. We will discuss the results of an experimental investigation focusing on these points.
Here, the time during the drainage process is t, the drive time is t, and the non-drive time is t=n (L + upper 2). , 10t2 are repeated.

The washing capacity is 25 k9, the amount of washing water is 25 k9, and the constant rotation speed of the washing and dehydrating tank 3 when driven continuously is 90 k9. p
．． According to the general fully automatic washing machine structure where m is the structure, if t,≧19 sand is not present during the driving time, residual water will be seen after the draining process is completed after t minutes; The intermittent drive of t=3 minutes, therefore n=3, was obtained as the optimum set value for a fully automatic washing machine from a structural standpoint. This experimental data is shown in FIG. This is based on the driving time as the horizontal axis, and shows how much water is left for various values of time, and the height of the water remaining in the washing and dehydrating tank 3 is set as the subordinate axis. . Three characteristic curves a. b. c is t=2 minutes, 3
This is the data when the settings are set as 4 minutes and 4 minutes.According to this, even if curve a is set to a fairly large value, there is a lot of residual water, and b. In the curve c, a substantially flat result close to zero is obtained at Z15 seconds.

Considering that it is preferable not to take too long t during the drainage process, t=3 minutes is the best example. Therefore, it is necessary to set t, at least 19 sands, but the value of t,, t2, which is as small as possible due to repeated repetition of intermittent rotation drive, is suitable for commercialization, and this experimental data shows that it is not directly possible. However, when compared to the structure of the fully automatic washing machine and the structure of the time switch itself, it is
Second, t2 Ni3 mirror sand was obtained. Incidentally, the setting time, t
If i3 minutes, t, = 20,000 sand, t2 = 3 mirror sand, therefore, n = 3 times, the water is drained numerically as follows. Incidentally, this indicates the proportion of water remaining in the washing/dehydration tank 3 after washing or rinsing that is drained out due to each intermittent rotational drive. According to this, approximately 1
According to the kite's drainage hose, the intended drainage has already been completed by the second intermittent rotational drive, and even with the addition of an extension hose (2 skins and 115 skins), drainage is completed with a small amount of residual water. I understand.

Therefore, if only a general drainage hose is used, the third intermittent rotational drive will perform a work equivalent to dewatering work rather than drainage work, but in order to adapt it to various embodiments, It is necessary to set aside this time. Since the conical washing and dewatering tank 3 has a tapered shape that expands upward, the inner wall of the tank can be successfully raised when draining water by rotation. Further, the time switch is generally configured to rotate each cam switch one pitch every minute. Therefore, in the above equation t=n (ra + t2), t is 1.2.3. It is preferable to select an integer such as .
The value of 39 acids is determined by the reversing cam switch R. which controls the rotation of the pulsator 2 during the washing or rinsing process. It turns out that it is sufficient to use something equivalent to S, or to use it for both purposes. This is a very favorable condition for the design of a time switch, and therefore a low-cost time switch can be expected. In the next rinsing process, switch the water supply valve 1 again to the cam switch S.
Switch 4 to the a contact again and drive the pulsator 2 in reverse,
Perform a so-called overflow rinse. The next drainage process is exactly the same as the previous drainage process, followed by a dewatering process.

Dehydration is performed at the b point of the cam switch S and the cam switch S.
The reversing cam switch R. Regardless of S, a washing and dewatering motor 11 is continuously rotated in a single direction, a washing and dehydrating tank 3 is rotated at high speed, and water is drained from an object 6 to be dehydrated. The rinsing, draining, and dewatering steps after this dehydration step are work settings for improving cleaning, and the functions of each cam switch are the same as those in the previous steps, so explanations will be omitted.

In this way, the fully automatic washing machine that sequentially performs each process and performs predetermined washing finishes its work when the time switch 8 is turned off.

As described above, according to the present invention, washing, draining, rinsing,
In a fully automatic washing machine that automatically performs a series of processes such as dehydration, the drain water flows out from the top to the water tank by driving the conical washing and dehydration tank intermittently, which is different from the conventional method. In addition to being able to provide a dehydrating washing machine that does not require a drain passage at the bottom of the tank and a drain valve that causes noise, it is also possible to provide a washing machine that does not require a drain passage at the bottom of the tank and a drain valve that causes noise. As a result, there is no need for drainage water to accumulate at the bottom of the tank and brake the rotation of the washing/dehydration tank, allowing efficient drainage work without causing the inconveniences that previously existed.
Furthermore, when dewatering is performed in the next step, it does not have any adverse effect on the dewatering work, and is extremely practical.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a fully automatic washing machine according to the present invention, Fig. 2 is its electric circuit diagram, Fig. 3 is a program chart explaining its washing work contents, and Fig. 4 is an intermittent rotational drive in the drainage process. Explanatory diagram and Figure 5 are experimental data. 1... Water tank, 2... Parasetter, 3... Washing and dehydration tank, 4... Washing water, 5... Drain hose, 6... Laundry,
7...Time switch, 8...Water level switch, 9.
...Water supply valve, 10...Washing and dehydration mode, So~S
4... Camswitch, R. S...Reversing cam switch, T. M...Timer mode. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1 The water tank is equipped with a rotatable conical washing/dehydration tank without a hole with a pulsator rotatably placed in the center of the bottom, and each process such as washing, draining, rinsing, and dewatering is controlled by a time switch. In a dehydrating washing machine that performs a predetermined cleaning operation, the structure of the cam switch group incorporated in the time switch is such that the washing and dewatering motor is intermittently energized during all draining processes, and the motor is continuously energized during the dewatering process. What is claimed is: 1. A dehydrating washing machine, characterized in that during the draining process, water is drained from the upper part of the washing/dehydrating tank to the water tank side by intermittent rotation of the washing/dehydrating tank.