JP2005066000A - Washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damage of delicate laundry and to wash it in a short period of time by washing the laundry by a weak water flow process of rotating a pulsator at a low speed and a strong water flow process of rotating the pulsator at a high speed in a washing machine prevented from damaging the clothes and efficiently removing dirt by the combination of the water flow processes. <P>SOLUTION: This washing machine is provided with a motor 16, a washing/spin-drying tub 13, the pulsator 14 disposed in the bottom part of the washing/spin-drying tub 13 and rotated by the drive of the motor, and a control means 24 sequentially controlling the washing and a rising processes. This washing machine, in the washing or rinsing process, is provided with the weak water flow process of partially frequency-cutting the energization to the motor 16 and rotating the pulsator 14 at the low speed, and the strong water flow process of rotating the pulsator 14 at the high speed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a washing machine that efficiently removes dirt without damaging clothing by a combination of water flows.

  Conventionally, this type of washing machine is generally configured as shown in FIG. 4 (see, for example, Patent Document 1). Hereinafter, the configuration will be described.

  FIG. 4 shows a conventional washing machine described in Patent Document 1. As shown in FIG. In FIG. 4, the washing / dehydrating tub 1 has a pulsator 2 rotatably disposed on the bottom surface, the water receiving tub 3 is provided outside the washing / dehydrating tub 1, and the motor 4 includes a V-belt 5 and a speed reducer. The washing / dehydrating tub 1 or the pulsator 2 is driven via the mechanism / clutch 6. The drain valve 7 drains the washing water in the washing / dehydration tank 1, and the water supply valve 8 supplies water to the washing / dehydration tank 1. In addition, the water receiving tank 3 is supported by the suspension 10 on the outer frame 9 with vibration isolation. The annular fluid balancer 11 is provided in the upper part of the washing and dewatering tank 1 to reduce vibration during dehydration.

  The control means 12 controls the motor 4, the drain valve 7, the water supply valve 8, etc., and sequentially controls a series of steps of washing, rinsing and dewatering.

  The operation in the above configuration will be described. When washing delicate clothes such as a sweater, the control means 12 controls the water supply valve 8 when the operation is started after putting clothes and a predetermined amount of detergent into the washing and dewatering tub 1. Then, a predetermined amount of water is supplied into the washing and dewatering tub 1, and then the motor 4 is controlled to drive the pulsator 2.

At this time, the control means 12 partially cuts the energization so that the delicate clothes are not damaged (the energization ratio of the motor 4 is 1/3 energization when the half wave of the power source is 1), and the pulsator 2 Is rotating at low speed. By the rotation of the pulsator 2, the clothes in the washing and dewatering tub 1 are agitated and the dirt is removed.
Japanese Patent Laid-Open No. 10-323482

  However, since the conventional washing machine only rotates the pulsator 2 at a low speed when washing delicate clothes, it is difficult to remove dirt from the clothes. In order to remove the dirt, washing time and rinsing are performed. There was a problem that the time had to be set longer.

  The present invention solves the above-mentioned conventional problems, washing clothes in a weak water fashion that rotates the pulsator at a low speed and a strong water fashion that rotates the pulsator at a high speed, without damaging delicate clothes, An object of the present invention is to provide a washing machine capable of washing in a short time.

  In order to solve the above-described conventional problems, a washing machine of the present invention includes a motor, a washing tub / dehydration tub, and a pulsator disposed at the bottom of the washing tub / dehydration tub and rotatably disposed by driving the motor. And a control means for successively controlling the washing and rinsing process, etc., in the washing or rinsing process, the control means partially cuts the frequency of energization to the motor and rotates the pulsator at a low speed. And a strong water fashion that rotates the pulsator at high speed.

  Thereby, delicate clothes can be washed without being damaged in the weak water fashion, and can be washed in the short time in the strong water fashion.

  The washing machine of the present invention can be washed in a short time without damaging delicate clothes.

  The first invention accomplishes washing, rinsing, dehydration process, and the like with a motor, a washing tub / dehydration tub, a pulsator at the bottom of the washing tub / dehydration tub and rotatably disposed by driving the motor. A control means for performing next control, the control means in the at least one of the washing process and the rinsing process, the weak water prevalence process in which the pulsator is rotated at a low speed by partially cutting off the power to the motor In addition, by executing both the strong water fashion that rotates the pulsator at a high speed, it is possible to combine a weak water flow that does not damage clothes and a strong water flow that easily removes dirt, so that delicate clothes are not damaged and short. Can be washed in time.

  In the second aspect of the invention, the control means of the first aspect of the invention efficiently combines a weak water flow that does not damage clothes and a strong water flow that easily removes dirt by executing the weak water fashion and the strong water fashion alternately. Therefore, it can be washed in a short time without damaging delicate clothes.

  According to a third aspect of the present invention, after the control means of the first or second aspect of the invention executes the strong water epidemic period at the start of at least one of the washing process and the rinsing process, the weak water epidemic period and the strong water epidemic period are performed. By alternately executing, clothing that floats on the water surface after water supply can be drawn into the water at the beginning of the stroke due to the strong water fashion, and the clothing can be soaked in water, so that the clothing is immersed in water And effective washing and rinsing can be performed in the subsequent steps.

  In the fourth aspect of the invention, the strong water epidemic water flow executed at the start of at least one of the washing process and the rinsing process by the control means of the third invention is stronger than the water flow of the subsequent strong water epidemic stage. With this setting, clothing that floats on the water after water supply can be drawn into the water strongly at the beginning of the stroke by the strong water trend of strong water flow, so that the clothing can be sufficiently saturated with water. Can be immersed in water, and more effective washing and rinsing can be performed in the subsequent steps.

  In a fifth aspect of the invention, the washing machine according to any one of the first to fourth aspects of the present invention supplies water to the pump chamber formed on the back side of the pulsator, and from the pump chamber toward the upper side wall of the washing tub / dehydration tub. By providing a circulating water channel having an opening at one end to spray water toward the center of the washing tub / dehydration tub, even when the clothes float on the surface of the washing water during washing, Since it can act on dirt, the washing nonuniformity of clothing can be reduced.

  In the sixth aspect of the invention, the control means of the fifth aspect of the invention sets the water flow at the strong water fashion level to a strength that can spray the washing water from the opening, so that only when the water current is at the strong water fashion level. The clothes floating on the surface of the water can be washed with water and allowed to act on the dirt, so that uneven washing can be reduced while suppressing foaming.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a washing machine according to Embodiment 1 of the present invention, FIG. 2 (a) is an energization waveform diagram during the strong water fashion of the washing machine, and FIG. 2 (b) is a weakness of the washing machine. FIG. 3 shows an operation time chart of the washing machine.

  In FIG. 1, a washing / dehydrating tank 13 has a pulsator 14 rotatably disposed on the bottom surface, and a water receiving tank 15 is provided so as to contain the washing / dehydrating tank 13. The motor 16 drives the washing / dehydrating tub 13 and the pulsator 14 via the V belt 17 and the speed reduction mechanism / clutch 18. The drain valve 19 drains the washing water in the washing / dehydrating tub 13, and the water supply valve 20 supplies water to the washing / dehydrating tub 13. Further, the water receiving tank 15 is supported by the suspension 22 on the outer frame 21 with vibration isolation. An annular fluid balancer 23 is provided at the top of the washing and dewatering tank 13 to reduce vibration during dehydration.

  The control means 24 controls the motor 16, the drain valve 19, the water supply valve 20, etc., and sequentially executes a series of steps of washing, rinsing and dewatering.

  On the inner side surface of the washing and dewatering tub 13, a circulation water channel 27 is formed by the circulation water channel cover 26 having the opening 25 and the washing and dewatering tub 13. When the motor 16 is energized, the rotation of the pulsator 14 causes washing water on the back surface of the pulsator 14 to pass through the circulating water channel 27 from the pump chamber 29 formed on the outer periphery thereof by the lower blades 28 of the pulsator 14, 25 is discharged into the washing and dewatering tank 13.

  As shown in FIG. 2 (b), the control means 24 sets the energization ratio to the motor 16 to 1 when the half wave of the power supply is 1, cuts the energization partly and sets the pulsator 14 at a low speed. As shown in FIG. 2 (a), there is a weak water fashion that rotates, and a strong water fashion that rotates the pulsator 14 at a high speed with the energization ratio to the motor 16 being 1/1. In the strong water epidemic, a strong water flow (for example, 1.0 second on-4.0 second off) and a standard water flow (for example, 0.5 second on-4.0 second off) are provided. .

  In addition, the water flow in the strong water fashion is discharged from the opening 25 into the washing and dehydrating tank 13, and the water flow in the weak water fashion (for example, 3.0 seconds on-5.5 seconds off) 25 so that washing water is not discharged. Other configurations are the same as the conventional one.

  To explain the operation in the above configuration, clothes and detergent are put into the washing and dewatering tank 13, and when the operation is started, the water supply valve 20 is opened to supply water to a predetermined water level, and then the motor 16 is driven. The power of the motor 16 is transmitted to the pulsator 14 through the washing shaft, and the pulsator 14 rotates.

  At this time, as shown in FIG. 3, the control means 24 executes a strong water flow as strong as the strong water epidemic for a certain time (for example, 30 seconds). Thereafter, the standard water flow for the weak water epidemic and the strong water epidemic are alternately executed at regular intervals (for example, the weak water epidemic is about 50 seconds and the strong water epidemic is about 20 seconds).

  Since the clothes are dry at the end of the water supply, they float on the surface of the water. Therefore, by first executing the strong water flow of the strong water epidemic period for a certain period of time, the clothes floating in the washing water can be drawn into the water by the strong water epidemic period and water can be soaked into the clothes at the start of the washing process. It can be sufficiently immersed in washing water. Thus, effective washing and rinsing can be performed in the subsequent process.

  In addition, as described above, by executing the weak water epidemic stage and the strong water epidemic period alternately at the optimal time, while washing the clothes gently without damaging the clothes in the weak water epidemic stage, without damaging the clothes in the strong water epidemic stage, Since the dirt can be removed firmly, the delicate clothes can be washed without damaging the clothes. At this time, by setting the execution time of the weak water epidemic period to be longer than the execution time of the strong water epidemic period, the effect of deferment washing for delicate clothes, that is, the dirt on the clothes floats from the clothes and is strong. The dirt can be separated from the clothes in the water fashion. Moreover, since the time of strong water epidemic is short, washing can be performed without damaging delicate clothes.

  In addition, after the strong water flow at the start of the washing process, the weak water epidemic process and the strong water epidemic process are alternately executed at an optimal time, and the water flow at the strong water epidemic period at this time is set to a standard water stream. This is because the washing water is sufficiently soaked in the clothing by the strong water flow at the start of the washing process, and the clothing is sufficiently immersed in the washing water. Can be washed gently without damaging.

  Also, since clothes such as theta tend to float, they may float above the water surface even during washing. Therefore, the water flow of the strong water fashion level is set so that the washing water is sprinkled from the opening 25, so that the clothes above the water surface can also be washed to act on the dirt.

  Further, if the amount of water sprayed from the opening 25 is too large, bubbles may be formed too much. Therefore, the water flow in the fashion of weak water is energized to the motor 16 so that the washing water is not discharged from the opening 25. The ratio is set. As a result, it is possible to reduce washing unevenness while suppressing excessive formation of bubbles due to watering.

  The control unit 24 may perform the same operation in the rinsing process.

  As described above, since the washing machine according to the present invention can be washed in a short time without damaging delicate clothes, the combination of water currents can efficiently remove dirt without damaging clothes. It is useful as a washing machine to perform.

Longitudinal sectional view of the washing machine in Embodiment 1 of the present invention Side sectional view of the washing machine (A) Energization waveform diagram of the washing machine in the strong water fashion (b) Energization waveform diagram of the washing machine in the weak water fashion Operation time chart of the washing machine Vertical section of a conventional washing machine

Explanation of symbols

13 Washing and Dewatering Tank 14 Pulsator 16 Motor 24 Control Means

Claims (6)

A motor, a washing tub / dehydration tub, a pulsator disposed at the bottom of the washing tub / dehydration tub and rotatably disposed by driving the motor, and a control means for successively controlling washing, rinsing, dehydration processes, etc. The control means includes a weak water prevalence process in which at least one of a washing process and a rinsing process, the energization of the motor is partially cut in frequency and the pulsator is rotated at a low speed, and the pulsator is operated at a high speed. A washing machine that performs both of the strong water epidemic rotating in. The washing machine according to claim 1, wherein the control means executes the weak water fashion and the strong water fashion alternately. The washing means according to claim 1 or 2, wherein the control means executes the strong water fashion period at the start of at least one of the washing process and the rinsing process, and then alternately executes the weak water fashion process and the strong water fashion process. Machine. The washing means according to claim 3, wherein the control means sets the water flow in the strong water fashion stage executed at the start of at least one of the washing process and the rinsing process to be stronger than the water stream in the subsequent strong water fashion process. Machine. A pump chamber formed on the back side of the pulsator, and a circulating water channel having an opening at one end to feed water from the pump chamber toward the upper side wall of the washing tub / dehydration tub and spray water toward the center of the washing tub / dehydration tub The washing machine according to any one of claims 1 to 4, further comprising: The washing machine according to claim 5, wherein the control means sets the water flow of a strong water fashion level to a strength at which the washing water can be sprinkled from the opening.

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