JPS58149788A - Full automatic washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fully automatic washing machine that automatically performs washing, rinsing, and dehydration steps.

This type of fully automatic washing machine has two methods: a method in which the rotor blades are rotated forward and backward in long cycles during the washing and rinsing processes (hereinafter referred to as the pulsator method), and a method in which the rotor blades are reversed in the forward and reverse directions in short cycles during the washing and rinsing processes. (hereinafter referred to as the agitator method).

In the pulsator system, forward rotation is 27 seconds, stop is 3 seconds, and reverse rotation is 27 seconds.
The rotor blades rotate at a long cycle of seconds, and the rotation speed of the rotor blades during forward and reverse rotations is 40 rpm. easily damaged.

(2) The fabric of the laundry is so loose that it is necessary to untangle it by hand one by one in order to transfer it to the dehydration process after the rinsing process, which is extremely inconvenient.

(3) Even if the machine automatically moves to the spin-drying process after the rinsing process is finished, the washing/spin-drying tank often stops due to excessive imbalance caused by the laundry being tangled in the fabric.
This is extremely inconvenient.

(4) Since the laundry becomes hard and tangled, the tangled parts are not washed well, resulting in uneven washing or rinsing.

It has the following drawbacks.

With the agitator method, the rotor rotates forward and backward slowly within 360", so there is very little chance of tangling or damage to the fabric. However, (a) the cleaning power is weak, and washing or rinsing can be done with only cold water instead of hot water. If you do this, it may not be possible to remove stains from the laundry sufficiently.

(b) In order to reverse the rotation of the rotor within 860°, a complicated mechanism is required, which is uneconomical.

It has the following drawbacks.

SUMMARY OF THE INVENTION In view of the above drawbacks, an object of the present invention is to provide a fully automatic washing machine which is less likely to tangle and damage fabrics, and which has better cleaning power than an agitator type washing machine.

The features of the present invention include an outer tank, a washing/dehydrating tank rotatably provided in the outer tank, a rotary blade rotatably provided at the inner bottom of the washing/dehydrating tank, and a rotary blade that rotates during washing. Alternatively, a fully automatic washing machine is provided with a washing machine motor that rotates forward and reverse during rinsing and rotates the washing and dehydrating tub at high speed in one direction during spin-drying, and has a cylindrical body formed in the upper center of the rotary blade,
The forward rotation time and reverse rotation time of the washing machine motor during washing or rinsing are set to t-3 seconds or less, and the rotation speed of the washing machine rotor during washing or rinsing is set in the range of 100 to 3 GO rpm. In addition, the cylindrical body is provided with efficient small blades.

EMBODIMENT OF THE INVENTION Hereinafter, this invention will be explained in detail based on Example drawing.

In FIG. 1, an outer tank 4 made of synthetic resin is supported in a box-shaped outer frame l made of a steel plate in a vibration-proof manner by means of hanging rods 2 and vibration-proof springs 3. Inside the outer tank 4, a washing and dehydrating tank 5 made of synthetic resin is provided. A balance ring 6 made of synthetic resin is attached to the upper end of the washing/dehydration tank 5 by friction welding.

A large number of dehydration holes 7 are provided in the side wall of the washing and dehydration tank 5.

At the center of the inner bottom of the washing and dehydrating tank 5, there is a rotating blade 8 made of synthetic resin.
step wall. The rotary blade 8 includes a disk-shaped blade body 8a, a plurality of small leg portions 8b disposed on the upper surface of the blade body 8a, and a cylindrical body 8C protruding from the center of the upper surface of the blade body 8m. The plurality of small blade parts 8b provided on the upper surface of the blade body 8m are arranged radially and at equal intervals, so that the force for stirring the washing water is almost the same whether the rotor rotates forward or backward. Set it as follows.

An outer tub lid 9 made of synthetic resin is attached to the upper end of the outer tub 4 in a round shape to prevent laundry from falling between the outer tub 4 and the washing and dehydrating tub 5. A drainage device 10 is installed on the outer bottom surface of the outer tank 4.
A driving device 11 for rotating the rotary blade 8 and the washing/dehydrating tank 5t is mounted via a support stand 12 made of a steel plate. The inner diameter of the outer tank 4 is in the range of 3'JQm to 500 points.

The drainage device IO includes a drainage valve 13 connected to the inner bottom of the outer tank 4.
and nine drain hoses 14 connected to the drain valve 13. The drain hose 14 is installed at the lower part of the side wall of the outer frame 1, and is drawn out of the outer frame 1 through nine pipes 15.

The drive device 11 includes a washing machine motor 16 , a clutch mechanism section 17 , and a transmission mechanism 18 that transmits rotation of the washing machine motor 16 to the clutch mechanism section 17 . Transmission mechanism 1
8 consists of a belt and a pulley. The clutch mechanism section 17 has a function of rotating only the rotary blades 8 in forward and reverse directions during the washing process and the rinsing process, and rotating the washing and dehydrating tub 5 and the rotary blades 8 together at high speed in one direction during the dehydration process. There is. The clutch mechanism section 17 includes a brake device that prevents the washing/drying tub 5 from rotating during the washing process and the rinsing process and stops the rotation of the washing/drying tub 50 after the spin-drying process is completed. The washing machine motor 16 is fixed to the support stand 12 using support legs 19.

A top cover 20t made of synthetic resin and having a clothing input port 20m is fixed to the upper end of the outer frame 1. Clothing slot 20m
The top cover 21 made of synthetic resin is provided so that it can be opened and closed or detached. A panel box 20bt is integrally formed at the rear of the top cover 20. Panel box 2Ob
Inside are a washing machine motor 16, a drive device 17, and a drain valve 1.
3, a timer 23 for controlling the water supply valve 22, a pressure switch 24, and the water supply valve 22.

The timer 23 can be operated from the front of the panel box 20b to select a washing process, a rinsing process, a dehydration process, or a combination thereof.

As shown in FIG. 3, the timer 23 includes a timer motor 25 consisting of a small synchronous motor, and a cam switch c, e cm e c, @ C4m C, # that switches the contact points by a cam plate rotated by the timer motor 25.
c, and a reversing switch 81 e Ss 1i-,
It is connected to the drain valve 13, water supply valve 22, washing machine motor 16, and pressure switch 24. A manual changeover switch 26 is connected in series to the reversing switch S1.

Cam switch C1e c, l c, l c4j c
, aC, switch the contacts according to the time chart shown in FIG. The washing process is set in a range of 10 minutes to 5 minutes. The rinsing step is set in a range of 8 to 5 minutes. Dehydration step Fi is set in the range of 5 minutes to 3 minutes.

As shown in FIG. 4, the reversing switch 51m8m is alternately energized to automatically reverse the washing machine motor 16. The normal rotation time and reverse rotation time of the reversing switch 31iS1 are both set to 3 seconds or less.The rest time of the 1 reversing switch Sl*Sl is set to 1 second or less.

The rotation speed of the washing machine rotary blade 8 is set to 100 to 3 GO rpm in the washing process and the rinsing process, and the rotation speed of the dehydration tank 5 is set to 700 to 11000 rpm in the dehydration process.

The rotor blade 8 has an outer diameter of the blade main body 81 set in the range of 200 to 350 mm (1) height of the rotor blade 8 (dimension from the inner bottom surface of the washing and dehydration tank 5 to the upper end of the cylindrical body 8C of the rotor blade 8) is 60
The highest static water level in the washing and dehydration tank 5, for example 30
Set within the range of 0m.

When a finishing agent feeding device is constructed at the upper end of the cylindrical body 8C, it protrudes above the highest static water level in the washing and dehydrating tank s.

The number of small leg portions 8b of the rotor blade 8 is as shown in figure #E9.
Even if the number is changed, the cleaning power does not change greatly, so it may be set to an appropriate number, but in this example, three are provided. The outer diameter of the cylindrical body 8c is set to 40 to 50 m as the minimum diameter that can be firmly installed without reducing the substantial volume of the washing tub 5.

The cylindrical body 8c of the rotary blade 8 is provided with small blades 8d.

A conceivable shape of the small blades 8d is to extend upward corresponding to the number of small wing parts 8b. Nine different shapes have already been proposed for the purpose of improving the uneven washing of clothes in the washing tub, as shown in Figure 10 and (2). More specifically, in the case of FIG. 1O (8), the diameter φd of the cylindrical body 8c is larger than the diameter φd1, and the cylinder 8c is extended upward from the small wing portion 8b to form a small blade. In terms of cleaning performance in this case, the movement of the bottom and top of the clothes in the tank 5 is such that the bottom part receives a strong stirring force, that is, the shaking force, by the small leg part 8b, but the top part receives φd.

This means that only a small mechanical force is applied by the machine, which means that the washing becomes more uneven. In addition, in the vicinity of the cylindrical portion 8C at the beginning of the small wing portion 8b, there is only a small movement of the clothing due to φd1 compared to the large movement of the clothing in the circumferential direction due to the small wing portion 8b. Clothes tend to get wrapped around the area.

While washing, the action of wrapping the clothes around each other and wrapping the clothes 9 times around the area occurs. This means that even if the agitator method does not cause much damage to clothing as a whole, the damage to the clothing will be large in some areas.

In other words, if there are weak clothing (those that have been used a lot or are inherently weak, such as women's underwear) in the vicinity of 0, problems such as tearing will occur. In addition, although the difference in mechanical force in the vertical direction mentioned earlier promotes the vertical switching of clothing, the clothing switching process essentially takes about 10 minutes compared to the stirring movement in the circumferential direction of the clothing. It has been experimentally confirmed that this occurs only a few times, about 1 to 5 times during the washing time. In other words, this movement can be clearly understood by making all white clothing, adding one or two pieces of red clothing, and checking with a transparent cypress. Therefore, if φdsl is large near the 0 part, the circumferential distance is long and the speed is high, so the wrapping force of the clothing increases and the damage to the clothing increases. Also, ■ in Figure 10 is K I to reduce uneven washing on the top and bottom.
Since φds, which is larger than IId *, is provided at the upper part, there will be less uneven washing compared to the case, but since it is essentially an extension of the leg part 8b, the relative velocity in the vertical direction imparted to the clothing cannot be increased by reducing it.

Therefore, the cleaning efficiency is rather reduced, and the area of each blade portion is increased, so that the motor 16 requires even more power. Therefore, in the present invention, as shown in FIG.
A partial pipe in which no blades are present is provided above t1 from the starting movement part of the K small wing part 8b.

This allows the cloth to be wrapped around the cylindrical portion 8C! In addition to minimizing damage to the cloth, there is no center part of the feathers, etc., so damage to the fabric can be minimized. In addition, the relative speed between the bottom and top cloths is sufficient, making it possible to replace the cloths in the vertical direction. However, in order to improve uneven washing, if small blades were provided in the cylindrical portion 8C, stirring power could be expected there as well, so it was decided to adopt small blades. 11 that exists below the surface of the water
Small blades 8d' and 8d' are installed in between, but we considered adjusting the number of blades by installing 8d' in all 11 spaces, but in this case, simply φd4
It was confirmed that the mechanical force applied to the cloth does not increase as the cylinder rotates.

Therefore, the uneven washing cannot be improved. Therefore, we considered a method of providing small blades 8d' and 8d' between t3 so as to have a wrap margin tm.9. In this case, if each blade has a large number of blades, it will act as a simple cylinder, so it was decided to provide 8d't-1 to 2 blades facing each other in the circumferential direction to 8d'1 to 2 blades. As a result, there is no blade above 8d# and 90@
Since s d / exists with a deviation of 180' from 180', the mechanical force applied to the cloth acts effectively. Therefore, there is no need to increase the diameter of φd4 and the total area of the blades is small, so less power is required for the motor 16.

This small blade 8d can provide a cleaning mechanism with good cleaning efficiency and less uneven cleaning.

When the rotor blade 8 is rotated forward and backward in a short cycle of 3 seconds or less,
As shown in Fig. 5, the rotation speed of the rotor blade 8 is 3QOr.
If it is less than pm, the fabric damage rate can be set lower than that of the conventional pulsator method. 9, the outer diameter of rotor blade 8 is 200
Even if it is changed to ~350■, as can be seen from Figure 6,
Fabric damage rate is not as high as in the conventional pulsator method. This means that the rotation speed of the rotor blade is 100 to 3QQrp.
The same holds true if the value is changed to m. Also, the height t of the rotor blade 8
Even if it is as high as -300wn, as shown in Figure 7,
The fabric damage rate can be set 4 smaller than the conventional pulsator method.

Furthermore, the normal rotation operation time and the reverse rotation operation time of the rotary blade 8 are 3.
If the time is less than 1 second, the fabric damage rate can be set smaller than in the conventional pulsator method, as shown in FIG. This relationship does not change even if the outer diameter of the rotor blade 8 is increased to 320 cm.

Next, the rotary blade 8' is rotated forward and reverse in 3 seconds or less, and
Rotation speed t-100 to 300 r during forward and reverse rotation of rotor blade 8
Experiments have shown that when the pmK is set, cloth entanglement can be suppressed to such an extent that it can be easily loosened when the laundry is lifted from the washing and dehydrating tub 5. This relationship remains the same even if the outer diameter and height of the rotary tool 8 are changed within the range of the above embodiment.9 Therefore, after the washing process or the rinsing process is completed, the laundry is kept in a dumpling state in the washing and dewatering tank 5. Since there is no tangle in the fabric, the transition to the dewatering process 11 is smooth, and the washing and dehydrating tank 50 rotations are stopped due to the occurrence of excessive imbalance, and the fabric is tangled one by one before starting the dewatering process. There will be no problems such as loosening it! Since there is little fabric tangling during the washing and rinsing processes, there will be no uneven washing or rinsing.
In addition, when the washing time is set to 10 minutes, the cleaning power can be reduced to 80 to 150% of that of the conventional nokrushator method, which is superior to the conventional agitator method.

Furthermore, even if the rotary blade 8 with the single cylindrical body 8c is rotated in a short cycle as in this embodiment, the motor input can be kept to about 400W or less, and the conventional pulsator can be used without increasing the motor capacity. The motor used in this method can be used.

Therefore, since it is only necessary to change the rotation speed of the rotor blade to 80, the reversal period, and the shape of the rotor blade, the parts used in the conventional pulsator system can be shared, which is extremely economical.

Furthermore, since it is possible to extend the cylindrical body 8C above the center of the upper surface of the first rotary blade 8 to the highest static water level in the washing/dehydration tank 5, it is possible to incorporate a lint filter device into the cylindrical body 8, or A finishing agent feeding device can be installed, and new functions can be easily added by only processing the rotor blade 8 without processing the washing/dehydration tank 5 and the outer tank 4.

In this embodiment, the cylinder 8C of the rotary blade 8 is integrally formed with the blade body 8a, but the cylinder 8c may be detachably attached to the blade body 81.

With this configuration, molding of the rotor blade 8 is easy and productivity is excellent.

In this embodiment, since a mechanical timer 23 is used, there is a limit to reducing the reversal cycle of the washing machine motor. However, by alternately using the two reversing switches 8118s, the forward rotation α5 seconds solid stop α5 seconds - reverse α5
You can set it to seconds.

Further reductions below this value can be achieved by using an electronic timer. Further, in this embodiment, the outer frame 1 and the outer tank 4Vt are provided separately, but the outer frame 1 may also serve as the outer tank 4t.

As described above, according to the present invention, it is possible to provide a fully automatic washing machine that is less likely to tangle or damage cloth, and which can improve cleaning power over conventional agitator systems.

[Brief explanation of the drawing]

Figures 1 to 9 show an embodiment of the present invention, with Figure 1 being a vertical sectional view of the main parts, Figure 2 being a time chart of the cam switch, Figure 3 being an electrical circuit diagram, and Figure 4 being an inversion. Switch time chart, Figure 5 is a characteristic curve diagram of rotation speed and damage rate, Figure 6
The figure is a characteristic curve diagram of rotor blade diameter and damage rate, Figure 7 is a characteristic curve diagram of rotor blade height and damage rate, Figure 8 is a characteristic curve diagram of operating time and damage rate, and Figure 9 is a characteristic curve diagram of blade number and cleaning. ratio characteristic curve diagram,
10th rIA, (2) is a conventional rotor diagram, and FIG. 11 is a rotor diagram of the present invention. 4... Outer tank, 5... Washing and dehydration tank, 8... Rotating blade, 8C... Cylindrical body, 8d', 8d'... Small blade, 1
6...Washing machine Figure 4 Figure 5 One time fP''number''n) 1435 □ Terachi V needle Figure 9 Number of sheets (Chichi) → Figure 10 CB)

Claims (1)

[Scope of Claims] 1. An outer tank, a washing/dehydrating tank rotatably provided in the outer tank, a rotary blade rotatably provided at the inner bottom of the washing/dehydrating tank, and a rotary blade rotatably installed in the inner bottom of the washing/dehydrating tank. A fully automatic washing machine comprising a washing machine motor that rotates forward and reverse during washing or rinsing and rotates the washing/dehydration tub at high speed in one direction during spin-drying, and having a cylindrical body formed at the center of the upper part of the rotary blade. The forward rotation time and reverse rotation time of the washing machine motor during washing or rinsing are set to 3 seconds or less, and the rotation speed of the washing machine rotor during washing or rinsing is set to 100 to 100.
A fully automatic washing machine set in a range of 300 rpm, and characterized in that a section t1 without small blades and a section l with small blades are provided in the cylindrical portion. ■A section t1 with no small blades and a section As t'' with small blades are provided in the cylindrical part, a wrap margin t3 is provided between each small blade, and each small blade is provided at a predetermined angle offset, and the number of blades is The fully automatic washing machine according to claim 1, characterized in that the number of washing machines is set to 1 to 2.