JPH01175889A - Operating method for washing machine - Google Patents

Abstract

PURPOSE:To permit clothes to be easily taken out after dewatering, relaxing a condition that the clothes are pressed to each other, by inversely rotating a rotary blade little by little after the dewatering is finished. CONSTITUTION:When a process advances to the final dewatering via washing- rinsing, a washing tank 5 rotates, and its centrifugal force presses washed clothes to an internal wall of the washing tank 5, when the dewatering is finished, the clothes are formed into a doughnut shape 13. Under this condition, a rotary blade 3 is inversely rotated little by little, and an inverse rotation time limit is different by reduction ratio of a reduction mechanism part 11, but in short, the rotary blade 3, when it rotates about one turn, is stopped next rotated in an opposite direction. By this operation, the rotary blade 3 applies pulsating force to the bottom of the doughnut-shaped clothes, performing the action loosening the clothes entangled coming into strong contact with each other. By this method, in case of taking out the clothes sheet by sheet, it is decreased that one sheet of cloth lifts another cloth attached to the sheet of the cloth, while even in case of taking out at a time all the clothes to be disentangled, because connection between the clothes weakens, disentangling work is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of operating a washing machine for loosening tangles from clothes after washing and dehydration.

2. Description of the Related Art In Japan, so-called whirlpool washing machines are widespread.

This type of washing machine has rotary blades rotatably attached to the inner bottom of the washing and dehydrating tub (hereinafter referred to as the washing tub).

The rotation of this rotating train generates a swirling water flow for washing.

This washer has a strong cleaning power and can be washed in a short time, but it also has the problem of large amounts of tangles (cloth tangles) in the clothes being washed.

In recent years, various improvements have been made to this cloth entanglement. For example, the rotation speed of the rotor blades can be halved from the previous 35 orpm to 170 rpm, 8 degrees, and the diameter of one rotor blade can be reduced to 200 rpm.
:The IM has been increased from about 300 to 3601 IM, and the rotation of the rotor blades has been made smaller, so that the previous 26 to 30 seconds of operation has been changed to 2 to 3 seconds of operation before the rotation is reversed. In other words, the large rotor blades are rotated slowly and the rotation is made in small increments to eliminate strong vortices.

This has led to considerable improvements in cloth entanglement.

Problems to be Solved by the Invention However, in the case of a fully self-help washing machine, dehydration is performed at the end after washing and rinsing, and the washing machine is taken out after the entire process is completed, but this dehydration causes the fabrics to become tangled. If the cloth is pressed against the inner wall in this state, the cloth will be pressed against each other, making it difficult to loosen the laundry when taking it out and loosening it. In addition, when taking out each piece of laundry, the contact and connection A between the cloth and the cloth in contact with it becomes stronger, and when taking out a single piece of laundry, the resistance to take out becomes stronger. , which required considerable force.

In other words, even if there is little tangle of laundry before spin-drying,
The phenomenon appears as if the entanglement has become stronger due to dehydration.

As mentioned above, the tangle of cloth during washing has been considerably improved, but improvements have been desired to make it easier to actually take out the laundry after dehydration.

The present invention is intended to solve these problems.

The purpose is to loosen the state in which cloth is pressed against each other after dehydration, making it easier to remove clothes.

Means for Solving the Problem In order to solve this problem, the present invention reverses the rotation in small increments after the completion of dehydration.

Function: During dehydration, the cloth pressed against the inner wall of the dehydration tank is subjected to intermittent force from the rotary blades, which causes the cloth to be shaken, causing the cloth to press against each other. It loosens up. the result.

This makes it easier to take out clothes and loosen the removed clothes.

Examples Examples of the present invention will be described below with reference to FIGS. 1 to 5. @Figure 1 is the overall configuration diagram of a fully automatic washing machine, and 3
is a rotor blade provided with a plurality of radial peaks 4, and is rotatably provided at the inner bottom of the washing tub 6. 6 is a water tank, 7 is a motor, and this rotational force is applied to a pulley 8. Belt 9. Through the pulley 10, the rotation f is further decelerated by the deceleration mechanism section 11.
This will be communicated to A3.

Here, the shape of one rotation 'A3 will be explained. Figure 2 is a plan view of the rotor blade, Figure 3 is a cross-sectional view of Figure 2, and Figure 4 is a sectional view of the rotor blade.
Figure 5 is a diagram showing the cross-sectional shape of the mountain, and the symbol a Nf'
corresponds to aNf in FIG. 2. The cross-sectional position is the highest part of the mountain (radius R
) is shown.

In Figure 4, the peak is the lowest at position O (the peak is highest at position cl, and the peaks in between are changing gradually).

Figure @6 shows another example in which the peaks are high at positions O and f, and the other peaks are low, but both are not arrays of peaks with the same height; It brings about a change in. The diameter of one rotary blade 3 should be as large as possible, preferably 0.8 or equivalent to the inner diameter of the washing tank.

The operation of the above configuration will be explained.

Fully automatic washing machines perform washing operations in two major steps: washing, rinsing, and water. Now, when the washing machine enters the final dewatering stage after washing and rinsing, the washing tub 6 rotates, and the centrifugal force presses the washed clothes against the inner wall of the washing tub 5, and when the dewatering process is completed, the clothes will appear as shown in 13 in Figure 1. Clothes are donut-shaped ((natteh)
Ru.

The one-reversal time period for reversing the rotation tA3 in small increments in this state varies depending on the reduction ratio of the reduction mechanism section 11.

In short, when the rotor blade 3 rotates about one revolution, it stops and is rotated in the opposite direction to the primary. Through this operation, the rotary blades 3 apply a pulsating force to the lower part of the donut-shaped clothing, bringing the cloth into strong contact and loosening the entangled clothing. If you put out 4 pieces each,
One piece of clothing is less likely to stick together and lift up another piece of clothing, and even when removing and unraveling the entire garment at once, the loosening process becomes easier because the bonds between the fabrics are weakened. Note that the effect can be enhanced by creating a height difference between the heights of the crests of one rotary blade 3.

The time required for combing the clothes varies depending on the type of clothing, but the effect was seen in approximately 10 to 301 J).

Effects of the Invention As described above, according to the present invention, after the dehydration is completed, the rotor blades are reversed little by little, and a pulsating force is applied to the dehydrated clothing to weaken the contact and bond between the cloths. As a result, the strength of tangles in the washing tub is weakened, making it easier to take out clothes, and reducing the work of taking out and stripping clothes.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a fully automatic washing machine showing an embodiment of the present invention, Fig. 2 is a plan view of the same rotor, Fig. 3 is a cross-sectional view of the same machine as shown in Fig. 2, Figs. The figure is a diagram showing the cross-sectional shape of the mountain of the rotor blade. 3...Rotary blade, 4...Mountain of rotor blades, 5
......Washing [■, 7...Motor, 13.
...Deceleration mechanism section, 13...Clothing. Name of agent: Patent attorney Toshio Nakao and 1 other person3-
Iff Yoyoku 4-Yama 5- Shimoto irrigation tank

Claims (3)

[Claims] (1) A method of operating a washing machine characterized by rotating rotary blades at the inner bottom of the washing and dehydrating tub in small increments for a predetermined period of time after completion of dehydration. (2) Set the diameter of the rotor blade to 0.
The method of operating a washing machine according to claim 1, characterized in that the washing machine operating method is set to 8 or about the same level. (3) The method of operating a washing machine according to claim 1 or 2, characterized in that a difference in height is provided between the heights of the plurality of peaks provided on the rotary blade.