JP2002292181A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine having less entanglement and excellent replacement of a wash and/or less damage of cloth at a spin-drying process. SOLUTION: At washing and residually rinsing, a water level is set so that a level of the wash is above the water level by 30-70% in a standard volume of a wash. Rotation and stoppage of a washing-spin-drying tub 3 are repeated. A pulsator 4 is synchronously rotated with the washing-spin-drying tub 3 at rotation of the washing-spin-drying tub 3 and only the pulsator 4 is rotated at stoppage of rotation of the washing-spin-drying tub 3. At washing, washing water is jetted from a port 28a of a circulating mechanism 12 into the washing- spin-drying tub 3. A hot air feeding means 7 is provided for feeding hot air into the washing-spin-drying tub 3 to dry clothes. During the drying, the washing- spin-drying tub 3 is allowed to rotate and the hot air is fed into the washing- spin-drying tub 3 from the hot air feeding means 7 and a drain valve 21 is repeatedly opened and closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having a washing process such as washing, rinsing and dehydration and a drying function.

[0002]

2. Description of the Related Art A washing / drying machine rotates a washing / dehydrating tub during a washing process, and circulates a large amount of washing water from the upper side into the washing / dehydrating tub over the entire circumference from between the washing / dehydrating tub and an outer tub. There is something to do, but there is little change of laundry. During the drying process, stop the washing / dewatering tub and rotate the pulsator,
Although hot air is supplied into the washing / dehydrating tub, the pulsator is constantly rotating, so that the cloth may be damaged.

[0003]

SUMMARY OF THE INVENTION The present invention provides a washing machine in which laundry is not easily entangled and is easily replaced, and / or the cloth is less damaged during drying.

[0004]

According to a first aspect of the present invention, there is provided a first washing machine provided with a housing having a clothing slot on an upper surface, a lid for opening and closing the clothing slot, and a housing. Outer tub, a drain valve connected to a drain hole formed in the bottom surface of the outer tub, a washing / dehydrating tub rotatably provided in the outer tub, and a low wall inner surface of the washing / dehydrating tub In the washing machine having a pulsator rotatably provided on the side, the washing / dehydrating tub is repeatedly rotated and stopped during the washing operation, and the pulsator is washed / demounted during the rotation of the washing / dehydrating tub. It is characterized in that the pulsator is rotated synchronously with the water tub and only the pulsator is rotated when the rotation of the washing / dehydrating tub is stopped.

Therefore, during the washing operation, the clothes are easily replaced, and the occurrence of entanglement and twisting is extremely small.

A second washing machine according to the present invention repeats the rotation and stop of the washing / dehydrating tub even during the rinsing operation, and rotates the pulsator synchronously with the washing / dehydrating tub during the rotation of the washing / dehydrating tub. When the rotation of the washing / dehydrating tub is stopped, only the pulsator is rotated.

[0007] Therefore, during the rinsing operation, the clothes are easily replaced, and the occurrence of entanglement and twisting is extremely small.

[0008] A third washing machine according to the present invention is characterized in that the water level during the washing and rinsing operation is set so that the laundry will jump out of the water surface by 30% to 70% at a standard washing amount.

Therefore, the amount of water used during the washing and rinsing operation is small, and water saving and detergent saving can be achieved.

[0010] A fourth washing machine according to the present invention is provided with a circulation mechanism for forcibly circulating the washing water in the outer tub from the inlet and out of the outlet, and forcibly circulating the washing water. The washing water is sprayed from the outlet to the washing / dewatering tub.

Accordingly, the washing water is evenly applied to the laundry, and the washing performance is improved.

A fifth washing machine according to the present invention is characterized in that the washing machine
The washing / dewatering tub is provided with hot air supply means for supplying warm air to the dehydration tub to dry the clothes. It is characterized by supplying wind.

Therefore, the finish during washing and drying is good and the fabric is not damaged.

According to a sixth aspect of the present invention, there is provided a washing machine having a housing having a clothes input port on an upper surface, a lid for opening and closing the clothes input port, an outer tub provided in the housing, and an opening of the outer tub. An inner lid that opens and closes, a drain valve connected to a drain hole formed in the bottom surface of the outer tub, a washing / dehydrating tub rotatably provided in the outer tub, In a washing machine provided with a pulsator rotatably provided on the inner surface side of the wall and hot air supply means for supplying warm air to the washing / dehydrating tub to dry clothes, during a drying operation,
It is characterized in that hot air is supplied from the hot air supply means to the washing / dehydrating tub and the drain valve is opened and closed intermittently.

Therefore, the release of hot air / steam can be minimized, the drying efficiency is improved, the finish at the time of drying is good, and the damage to the cloth is small. In addition, dew water can be drained.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A washing and drying machine according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of the washing and drying machine.

FIG. 1 will be described below. Opening 6 on top
An outer tub 2 suspended by hanging rods 17 and 18 with springs having different lengths in a box-shaped housing 1 having a length, and a stainless steel washing / dehydrating tub 3 provided coaxially in the outer tub 2. And The outer tub 2 is provided with an openable / closable inner lid 11 pivotally supported by a shaft 11a.
Then, the inner lid 11 is closed. Opening 6 of housing 1
Is an opening for putting laundry into the washing / dehydrating tub 3 and taking out the laundry. In relation to the opening 6, an upper lid 5 is provided on the upper surface of the housing 1 to cover the opening 6 so that the opening 6 can be opened and closed. The outer tub 2 is inclined by being suspended from the housing 1 by the suspension rods 17 and 18 having different lengths. Since the outer tub 2 is inclined, the laundry can be easily taken in and out of the washing / dehydrating tub 3. Many small holes 3a are formed around the stainless steel washing and dewatering tub 3. A circulation hose 14 made of resin is attached to the inner wall of the washing / dewatering tub 3 to form a circulation path 16. The circulation hose 14 is provided with a lint filter 15 for catching lint and the like. At the bottom of the washing / dewatering tub 3, a pulsator 4 for stirring the washing water to generate a water flow is provided. A plurality of back ribs 4b are provided on the back side of the pulsator 4, and the washing water is circulated by the pump-up action of the back ribs 4b. The washing / dewatering tub 3 and the pulsator 4 are supported by an output shaft (not shown) of a drive mechanism 23 provided below the outer tub 2 so as to be rotatable forward and backward.

The driving mechanism 23 includes a motor 24 for generating a driving force for rotating the washing / dewatering tub 3 and the pulsator 4, and a bearing 25.
The bearing portion 25 includes an inner tub shaft (not shown) for supporting and rotating the washing / dewatering tub 3. The inner tank axis is
The upper end is connected to the bottom of the washing / dehydrating tub 3 through the bottom of the outer tub 2. In addition, the upper end of the inner tank shaft is
A blade shaft 26 connected to the rotor 4 is rotatably inserted therein.

The washing / dewatering tub 3 and the pulsator
So that the bearings 25 can be individually driven.
A clutch (not shown) is built in. When the washing / drying tub 3 rotates, the driving force of the motor 24 is transmitted to both the washing / drying tub 3 and the pulsator 4 so that the washing / drying tub 3 and the pulsator 4 are moved. When it rotates synchronously in one direction at a low speed and the rotation of the washing / dehydrating tub 3 stops,
The driving force of the motor 24 is transmitted to the pulsator 4 via the bearing 25, and only the pulsator 4 is rotated forward and backward. At the time of spin-drying, the driving force of the motor 24 is transmitted to both the spin-drying tub 3 and the pulsator 4, and the spin-drying tub 3 and the pulsator 4 rotate in one direction at high speed. Then, the laundry in the washing / dewatering tub 3 is dehydrated by centrifugal force.

A drainage mechanism 19 for draining water from the outer tub 2 is provided on the bottom surface of the outer tub 2. The drainage mechanism 19
It is provided at the lowest position of the outer tub 2. By providing the drainage mechanism 19 at this position, it is possible to drain all the water in the outer tub 2.

The drainage mechanism 19 includes a drainage hole 20 opened on the bottom of the outer tub 2, a drainage valve 21 connected to the drainage hole 20, and a drainage passage 22 extending from the drainage valve 21. It is. Further, a circulation mechanism 12 for forcibly circulating the washing water is provided. The circulation mechanism 12 includes a suction hose 27 connected below the drain hole 20, a pump 13 connected to the suction hose 27, and a pump 1.
The discharge hose 28 is connected to the discharge hose 28.

Next, the method of the washing operation will be described below.

In the washing, the water level is set so that the laundry is projected from the water surface by 30% to 70% at a standard washing amount. The washing / dewatering tub 3 is set at 60 to 100 r. p. m at low speed and repeat rotation and stop (pulsator 4
(Spinning and stopping at the same speed as the dehydration tub 3 are repeated in synchronization with the dehydration tub 3), and when the rotation of the washing / dehydration tub 3 is stopped, only the pulsator 4 is inverted right and left for a short time. As the reversal time, the ON / OFF time in the standard washing capacity is about 1 second in order to prevent the laundry from being entangled or twisted. As the washing capacity decreases, the reversal time of the pulsator 4 decreases. Also, the washing liquid is sucked from the suction port 27a by always operating the pump 13 during washing,
The washing liquid is evenly sprayed onto the laundry in the washing / dehydrating tub 3 from a discharge port 28a provided in the upper portion of the outer tub 2. By the above-mentioned operation method, it is possible to save water and detergent during washing, to minimize the occurrence of entanglement and twisting of laundry, to reduce washing unevenness, and to improve washing performance.
In addition, the water level is set so that the laundry will jump out of the water surface by 30% to 70% at the standard washing amount even in the case of the rinse.
In addition, the washing / dehydrating tub 3 is kept at 60-100
r. p. m, and rotate and stop repeatedly (the pulsator 4 repeats the rotation and stop at the same speed as the washing / dewatering tub 3 in synchronization with the washing / dewatering tub 3). When the rotation is stopped, only the pulsator 4 is inverted right and left for a short time. The reversal time of the pulsator 4 is the same as the reversal time at the time of washing. Therefore, the occurrence of entanglement, twisting and the like of the laundry can be extremely reduced even during the rinsing, and water can be saved. In the fully automatic course, a drying process is started after washing, rinsing and dehydration are completed.

Next, the hot air supply means 7 for supplying warm air to the washing / dewatering tub 3 will be described below. The hot air supply means 7 includes an air blower 9, a blower duct 10 connected to the blower 9, and a heat generating device 8 provided in the blower duct 10, provided at an upper portion of the outer tub 2. The outside air sucked from the lower part of the washing machine 1 is heated by the heating device 8 to become hot air, and the hot air is supplied from the outlet 10 a into the washing / dewatering tub 3 through the air duct 10. The temperature of the hot air is about 70C to 80C.

Next, the operation of the drying process will be described.
During drying, the washing / dehydrating tub 3 is rotated at a low speed in one direction (about 6
0r. p. m) (while the pulsator 4 rotates in one direction at the same number of revolutions as the washing / dewatering tub 3), the warm air is supplied into the washing / dewatering tub 3 from the outlet 10a of the blower duct 10 to make the clothes. Allow to dry. During the drying, water droplets that have condensed on the inner wall of the outer tub 2 due to the temperature difference from the outside air temperature collect at the drain port 17, and by repeatedly opening and closing the drain valve 21, the release of hot air and steam is minimized. Drain. Therefore,
Good drying efficiency and good finish at the time of drying.

[0026]

According to the present invention, in washing and rinsing, the washing / dehydrating tub is rotated / stopped, and when the washing / dehydrating tub is stopped, only the pulsator is driven. Can be.

Since the drying is performed while rotating the washing / dehydrating tub, the drying can be performed while suppressing damage to the cloth.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a washing and drying machine according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Outer tub 3 Washing / dehydration tub 4 Pulsator 7 Hot air supply means 8 Heating device 9 Blower 10 Blower duct 10a Outlet 12 Circulation mechanism 13 Pump 20 Drain hole 21 Drain valve 23 Drive mechanism 24 Motor 25 Bearing part 27 Suction hose 28 Discharge hose 28a Discharge port

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenji Yamamoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3B155 AA01 AA05 AA16 AA18 AA19 CA06 CB07 CB49 FC02 FD01 FD02 KA19 LA02 LA11 LB22 LB31 MA01

Claims (6)

[Claims] 1. A housing having a clothing inlet on an upper surface, a lid for opening and closing the clothing inlet, an outer tub provided in the housing, and a drain hole formed on a bottom surface of the outer tub. A drain valve, a washing / dewatering tub rotatably provided in the outer tub, and a pulsator rotatably provided on the lower wall inner surface side of the washing / dewatering tub, During the washing operation, the rotation and stop of the washing / dehydrating tub are repeated.
A washing machine characterized by rotating a washing machine and a washing / dewatering tub synchronously, and rotating only the pulsator when the washing / drying tub stops rotating. 2. The washing machine according to claim 1, wherein the washing and dewatering tub is repeatedly rotated and stopped even during the rinsing operation, and the pulsator is washed and rotated when the washing and dewatering tub is rotated.
A washing machine characterized in that the washing machine rotates in synchronization with the dewatering tub and rotates only the pulsator when the rotation of the washing / dewatering tub is stopped. 3. The washing machine according to claim 2, wherein the water level during the washing and rinsing operation is set such that the laundry jumps out of the water surface by 30% to 70% at a standard washing amount. . 4. The washing machine according to claim 1, further comprising a circulation mechanism for forcibly circulating the washing water in the outer tub by sucking the water from an inlet and discharging the washing water from an outlet. Washing water from the outlet
A washing machine characterized by spraying into a dehydration tub. 5. The washing machine according to claim 1, further comprising hot air supply means for supplying warm air to the washing / dewatering tub to dry the clothes, and wherein the washing / drying is performed during the drying. A washing machine wherein hot air is supplied from the hot air supply means to the washing / dehydrating tub while rotating a water tub. 6. A housing having a clothing input port on an upper surface, a lid for opening and closing the clothing input port, an outer tub provided in the housing, an inner lid for opening and closing an opening of the outer tub, A drain valve connected to a drain hole formed in the bottom of the tub, a washing / dehydrating tub rotatably provided in the outer tub, and a rotatable provided on the lower wall inner surface side of the washing / dehydrating tub. A washing machine provided with a pulsator and a hot air supply means for supplying warm air to the washing / dehydrating tub to dry clothes. A washing machine characterized by supplying hot air to a dehydration tank and intermittently opening and closing a drain valve.