JP3275633B2 - Dehydration combined washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing and dewatering, in which laundry in a washing and dewatering tub is washed by rotating a pulsator, rinsed, and dewatered by rotating the washing and dewatering tub.

[0002]

2. Description of the Related Art Conventionally, this type of washing machine for both dehydration and washing is configured as shown in FIGS. Hereinafter, the configuration will be described.

[0003] As shown in FIG. 7, an exterior body 1 includes a support plate 2.
The outer tub 3 is supported by a suspension 4 elastically. The outer tub 3 has a pulsator 5 rotatably at the center bottom.
Is included in the washing and dewatering tub 6. The pulsator 5 has a back blade 7 on the lower surface. A cylindrical circulating water channel 8 is provided in the body of the washing and dewatering tub 6, and a discharge unit 9 is provided above the circulating water channel 8. The washing and dewatering tub 6 is provided with a plurality of through holes 6a in the inner peripheral wall.
A convex portion 6b long in the longitudinal axis direction of the washing and dewatering tub 6 is formed between the hole 6a and the hole 6a.

The clutch mechanism 10 is mounted on the outer bottom surface of the support plate 2, and has a dehydrating shaft 11 connected to a washing and dewatering tub 6 formed on a concentric double shaft and a washing fixed to the pulsator 5. It supports the shaft 12 and transmits the power of the motor 14 transmitted by the V-belt 13 to the dewatering shaft 11 and the washing shaft 12 while switching the power, and also has a brake mechanism for fixing the washing and dewatering tub 4 during washing and rinsing. ing.

The electromagnetic valve 15 opens and closes the electromagnetic drain cock 16 and closes the electromagnetic drain cock 16 by non-excitation so that washing and rinsing can be performed. The electromagnetic valve 15 is excited to excite the electromagnetic drain cock. When the cock 16 is opened, the washing / dewatering tub 6 is released and the braking of the washing / dewatering tub 6 is released, so that the washing / dewatering tub 6 is rotatable and dehydration is performed. The water supply valve 17 supplies water to the washing and dewatering tub 6.

[0008] As shown in FIG. 8, the control device 18 controls the bidirectional thyristors 20 a-2 in response to a command from the control means 19.
0d is controlled, and the motor 14, the solenoid valve 15, and the water supply valve 17 are controlled to sequentially control a series of steps of washing, rinsing, and dewatering. Reference numeral 21 denotes a capacitor for advancing the motor 14.

The operation of the above configuration will be described. First, after the power is turned on, the clothes are put into the washing and dewatering tub 6 and the operation is started. The reverse inversion drive is performed. At this time, the motor 14 due to frictional resistance applied to the pulsator 5
Then, the back electromotive force generated between the terminals of the capacitor 21 in the off state is converted into a pulse to detect the amount of clothes (cloth amount) in the washing and dewatering tub 6.

The water supply valve 17 is turned on in accordance with the amount of cloth to automatically supply water. When a predetermined water level is reached, the water supply valve 17 is turned off, and the pulsator 5 is turned on and off by turning on and off the motor 14 and reversing the forward and reverse directions. It drives and stirs the clothes to execute the washing process. In the washing and rinsing steps, at the same time as the pulsator 5 is driven, the washing liquid in the lower part of the outer tub 3 is sucked up by the back blade 7 by the pump-up action, and the circulating water 8
And is discharged from the upper discharge section 9 to promote the capture of the lint and the dissolution of the detergent.

At about the same time as the end of the washing or rinsing step, the solenoid valve 15 is turned on, and the electromagnetic drain cock 16 is opened.
The operation of switching the power of the motor 14 to the spinning shaft 11 and the release of the braking of the spinning shaft 11 are performed simultaneously. Therefore, the water in the washing and dewatering tub 6 and the outer tub 3 are discharged to the outside of the machine, and at the same time, the washing and dewatering tub 6 becomes rotatable. At the end of drainage, the motor 14 is turned on and off to control the washing and dewatering tub 6.
Is rotated, the clothes are pressed against the inner wall of the washing and dewatering tub 6 having the convex portion 6b by centrifugal force and squeezed, and water is discharged out of the washing and dewatering tub 6 through the hole 6a provided in the washing and dewatering tub 6, It is discharged outside the machine through the drain cock 16.

[0010]

However, in such a conventional configuration, when delicate clothes (bras, slips, etc.) are washed at the same time from jeans and towels, there is a possibility that the delicate clothes are broken before being washed. However, if the stirring is performed with a relatively strong water flow, a wire (not shown) for preventing the clothes from being deformed may pop out.

When the washing or rinsing process is completed and the process proceeds to the dehydration process, the motor 14 is turned on and off to start the rotation of the washing and dewatering tub 6.
The clothes in the center of the washing and dewatering tub 6 move to the inner wall of the washing and dewatering tub 6, and the protruding wires also move to the inner wall of the washing and dewatering tub 6. At this time, wire (not shown)
May enter the hole 6a and come into contact with the outer tub 3, causing an abnormal sound to occur at the same time as the rotation of the washing and dewatering tub 6, or damaging the inner wall of the outer tub 3, There was a problem that the strength was significantly reduced.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to suppress the entry of foreign matter such as a brassiere, a wire such as a slip into a hole in an inner wall of a washing and dewatering tub, and to prevent abnormal dehydration noise.

[0013]

In order to achieve the above object, the present invention provides an outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a washing and dewatering tub. A washing machine comprising: a pulsator rotatably disposed at a central bottom of a water tank; a motor for driving the pulsator; and a clutch mechanism for switching the power of the motor during a spinning operation and transmitting the power to the spinning shaft. The first object of the present invention is to form a plurality of holes in an inner peripheral wall of the combined dewatering tub and to provide a plurality of convex portions long in the dehydration axis direction between the holes.

[0014] The projection of the first means for solving the problem may be:
The arrangement in the vicinity of the hole is a second problem solving means.

[0015] The convex portion of the first means for solving the problem may be
A third problem solving means is to provide a gentle slope on the side close to the hole and a steep slope on the opposite side.

[0016] The convex portion of the first means for solving the problem may be
The fourth problem-solving means is that the convex portion extends linearly and continuously in the dehydrating axis direction.

Also, an outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a pulsator rotatably disposed at the center bottom of the washing and dewatering tub. A motor for driving the pulsator, a clutch mechanism for switching the power of the motor during the dehydrating operation and transmitting the pulsator to the dehydrating shaft, and a pump in the pulsator for pumping up the water in the outer tub. A circulating water passage for discharging the washing and dewatering tub from the upper part or the body part, wherein the washing and dewatering tub is provided with a plurality of holes in an inner peripheral wall,
The provision of a plurality of long protrusions in the direction of the dewatering axis between these holes and the circulating water passage is a fifth problem solving means.

[0018]

According to the first aspect of the present invention, there is provided:
When foreign objects such as wires such as brassiere and slip contact the inner wall of the washing and dewatering tub, a plurality of long protrusions in the dehydration axis direction are provided between the holes. The protrusions are in the way and are sandwiched between the protrusions, so that movement to the holes is suppressed, and entry into the holes can be prevented.

Further, according to the second means for solving the problem, when the end of the foreign matter such as a wire approaches the hole along the inner wall of the washing and dewatering tub, the convex portion is disposed near the hole.
Convex parts can be prevented from entering the hole, and a wide area can be secured between the hole and the foreign material such as wire in the range from the hole to the washing and spinning tub rotating direction or anti-rotating direction Even if it is, the convex part becomes an obstacle and can be prevented from entering the hole.

According to the third means for solving the problem, when the end of a foreign substance such as a wire moves near the hole during stirring with the pulsator, a gentle slope is provided on the side near the hole where the convex portion is close to the hole. As a result, foreign objects such as wires can escape easily, and the steep slope is provided on the side opposite to the side where the convex portions are close to the holes, so that foreign objects such as wires can be removed from multiple convex portions between the holes. The movement is restrained by being sandwiched between the holes, the movement is prevented from moving toward the hole, and it is possible to prevent the hole from entering the hole.

According to the fourth means for solving the problem, when foreign matter such as a wire such as a brassiere and a slip comes into contact with the inner wall of the washing and dewatering tub, the projection is linearly and continuously extended in the dehydrating axial direction. As a result, foreign matters such as wires can be prevented from entering the holes due to the obstruction of the projections over the entire height of the inner peripheral wall of the washing and dewatering tub with which the cloth contacts.

Further, according to the fifth means for solving the problem, when a foreign matter such as a wire such as a bra and a slipper comes into contact with the inner wall of the washing and dewatering tub, a convex portion long in the dehydrating axial direction is formed between the hole and the circulating water channel. Since a plurality of wires are provided, foreign matter such as a wire is hindered by the convex portions, and is in a state of being sandwiched between the convex portions, and does not enter the gaps between the holes and the inner wall of the circulating water channel and the washing and dewatering tank. .

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in the figure, the washing and dewatering tub 22 has a body made of stainless steel and has a plurality of through holes 2 formed in the inner peripheral wall.
2a is provided. The hole 22a has a substantially conical tapered portion 22b (P = 50 ° to 100 °), and the inner diameter Q = φ
It has a shape of 2.5 to 3.3 and a height R of 1 to 1.6 mm. A plurality of convex portions 22c long in the longitudinal axis direction of the washing and dewatering tub 22 are formed between the holes 22a. The protrusion 22c has a width S = 3.5 to 5 mm and a height T
= About 0.6 to 1.5 mm. Other configurations are the same as the conventional example. When the washing and dewatering tub 22 is a resin molded product, the tapered portion 22b can be formed in an inverted substantially conical shape.

In the above configuration, when delicate clothes (bras, slips, etc.) are washed from jeans and towels at the same time, the delicate clothes may break before being washed. As shown in the figure, the wire 23 for preventing the clothing from breaking down may pop out.

The washing or rinsing step is completed as it is, the dehydration step is started, and the motor 14 is turned on and off to start the rotation of the washing and dewatering tub 22. At this time,
The clothes in the center of the washing and dewatering tub 22 move to the inner wall of the washing and dewatering tub 22 by centrifugal force. At the same time, foreign matter such as the wire 23 moves to the inner wall of the washing and dewatering tub 22 and comes into contact therewith.

At this time, since a plurality of projections 22c are provided between the hole 22a and the adjacent hole 22a,
In the case of a foreign substance such as 3, the plurality of convex portions 22 c interfere
2c, the movement is suppressed, and the hole 2
2a. Also, the end of the wire 23 and the like hits the tapered portion 22b even in the vicinity of the hole 22a, so that it is possible to prevent the wire 23 from entering the hole 22a and protruding outside the washing and dewatering tub 22.

Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the washing and dewatering tub 24 has a convex portion 24c disposed near the tapered portion 24b of the hole 24a. That is, the pitch Z between the holes 24a and the holes 24a is 38.
The distance U from the tapered portion 24b to the convex portion 24c is about 2.5 to 4.0 mm with respect to 〜50 mm. Other configurations are the same as those of the first embodiment.

In the above configuration, the washing or rinsing step is completed and the dehydration step is started, and the motor 14 is turned on and off to start the rotation of the washing and dewatering tub 24. At this time, even if the end of the wire 23 for preventing shape collapse such as a bra approaches the hole 24a along the inner wall of the washing and dewatering tub 24 due to centrifugal force, the wire 23 and the like between the hole 24a and the adjacent hole 24a. It is possible to secure a wide area where the foreign matter is sandwiched. Further, even if the rotation direction of the washing and dewatering tub 24 is either x or y, the convex portion 24c becomes an obstacle and can be prevented from entering the hole 24a.

Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, the washing and dewatering tub 25 has a convex portion 25c provided with a gentle slope 25d (angle V = 50 ° to 85 °) on the side near the hole 25a near the hole 25a.
A steep slope 25e (angle W = 5 ° to 40 °) is provided on the side opposite to the side where the protrusion 25c is close to the hole 25a. Other configurations are the same as those of the first embodiment.

In the above configuration, in addition to the rising during dehydration, even if the end of the foreign matter such as the wire 23 moves around in the vicinity of the hole 25a during the stirring of the pulsator 5 in the washing or rinsing process, the foreign matter such as the wire 23 is not removed. It is easy to escape in the vicinity of the hole 25a, and once it enters between the plurality of convex portions 25c between the holes 25a, it is narrowed by the steep slope 25e, so that it does not move toward the hole 25a, 25a can be suppressed.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the washing and dewatering tub 26 has a convex portion 26c linearly and continuously extending in the direction of the dewatering shaft 11. Other configurations are the same as those of the first embodiment.

In the above configuration, even during stirring from the minimum water level to the maximum water level in the washing or rinsing process, and during dehydration, foreign matter such as the wire 23 extends over the entire height of the inner peripheral wall of the washing and dewatering tub 26 with which the clothes abut. The protrusion 26c becomes an obstacle, so that entry into the hole 26a can be suppressed.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the washing and dewatering tub 27 is provided with a hole 27a having a substantially conical tapered portion 27b in the inner wall, and the washing and dewatering tub 27 is provided between the hole 27a and the adjacent hole 27a. A plurality of protrusions 27c are provided in the longitudinal axis direction of 27.
Further, the washing and dewatering tub 2 is also provided between the hole 27a and the circulation channel 8.
7 are provided with a plurality of convex portions 27c which are long in the longitudinal axis direction.
Here, the circulation channel 8 is a resin molded product, and is fitted at the upper part, the trunk part, and the lower part of the washing and dewatering tub 27.

In the above configuration, when the operation is performed using bath water, hot water, or the like, the deformation of the circulating water channel 8 increases, and the gap 8a between the circulating water channel 8 and the washing and dewatering tub 27 tends to increase. Even if foreign matter such as the wire 23 abuts against the inner wall of the washing and dewatering tub 27, the foreign matter such as the wire 23 is in a state of being caught between the plurality of convex portions 27c, 27a and the gap 8a between the circulation channel 8 and the inner wall of the washing / dewatering tub 27 can be suppressed.

[0040]

As described above, the present invention provides an outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a rotatable center of the washing and dewatering tub. A pulsator, a motor for driving the pulsator, and a clutch mechanism for switching the power of the motor during the dehydrating operation and transmitting the pulsator to the dehydrating shaft. Since a plurality of holes are formed in each of the holes and a plurality of long protrusions extending in the dehydration axis direction are provided between the holes, foreign matter such as a wire such as a brassiere and a slip may hit the inner wall of the washing and dewatering tub. When it touches, a plurality of convex parts will be in the way, it will be sandwiched between the convex parts, movement to the hole will be suppressed, it can be prevented from entering the hole, preventing abnormal dehydration noise Can be.

Further, since the convex portion is disposed near the hole,
When the end of a foreign substance such as a wire approaches the hole along the inner wall of the washing and dewatering tub, the convex part can prevent it from entering the hole and remove foreign substances such as a wire from the hole to the hole. A large area to be sandwiched can be ensured, and the convex portion can be an obstacle in either the rotation direction or the anti-rotation direction of the washing and dewatering tub, and can be prevented from entering the hole.

Also, since the convex portion has a gentle slope on the side close to the hole and a steep slope on the opposite side, when the end of a foreign substance such as a wire moves near the hole during stirring with the pulsator, the hole may be removed. Foreign matter such as wires can escape easily in the vicinity,
On the side opposite to the side where the convex portion is close to the hole, the convex portion is sandwiched between the convex portions and the movement is suppressed, and the convex portion does not move toward the hole, so that it can be prevented from entering the hole.

Also, since the protruding portion extends linearly and continuously in the direction of the dehydrating axis, foreign matter such as a wire and the like are not covered by the protruding portion over the entire height of the inner peripheral wall of the washing and dewatering tub with which the cloth contacts. Can be an obstacle and can be prevented from entering the hole.

Further, an outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a pulsator rotatably disposed at the center bottom of the washing and dewatering tub. A motor for driving the pulsator, a clutch mechanism for switching the power of the motor during the dehydrating operation and transmitting the pulsator to the dehydrating shaft, and a pump in the pulsator for pumping up the water in the outer tub. A circulating water passage for discharging the washing and dewatering tub from the upper part or the body part, wherein the washing and dewatering tub is provided with a plurality of holes in an inner peripheral wall,
Since a plurality of projections long in the dehydration axis direction are provided between these holes and the circulation water channel, when a foreign substance such as a wire such as a bra and a slip comes into contact with the inner wall of the washing and dehydrating tub,
Foreign matter such as a wire is obstructed by the convex portion and is interposed between the convex portions, so that it is possible to suppress entry into the hole and the gap between the circulation water channel and the inner wall of the washing and dewatering tank.

[Brief description of the drawings]

FIG. 1 is a sectional view of a washing machine with dehydration according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged cross-sectional view of a washing / drying tub of the washing / drying machine.

FIG. 3 is a partially enlarged sectional view of a washing and dewatering tub of a washing and dewatering washing machine according to a second embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view of a washing and dewatering tub of a washing and dewatering washing machine according to a third embodiment of the present invention.

FIG. 5 is a sectional view of a washing machine with dehydration according to a fourth embodiment of the present invention.

FIG. 6 is a partially enlarged sectional view of a washing and dewatering tub of a washing and dewatering washing machine according to a fifth embodiment of the present invention.

FIG. 7 is a cross-sectional view of a conventional washing machine for both dehydration and dehydration.

FIG. 8 is a block circuit diagram of the washing machine for combined use with dehydration.

[Explanation of symbols]

 Reference Signs List 3 outer tub 5 pulsator 10 clutch mechanism 11 dehydrating shaft 14 motor 22 washing and dehydrating tub 22a hole 22c convex portion

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-148389 (JP, A) JP-A-54-62665 (JP, A) JP-A-7-39680 (JP, A) 77689 (JP, U) JP-A 63-39387 (JP, U) JP-A 1-1111587 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06F 37/12 D06F 39 / 12

Claims (5)

(57) [Claims] 1. An outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a pulsator rotatably disposed at a central bottom of the washing and dewatering tub. A motor for driving the pulsator, and a clutch mechanism for switching the power of the motor during the spinning operation and transmitting the power to the spinning shaft. The washing and spinning tub has a plurality of holes formed in an inner peripheral wall thereof. A dehydrating / washing machine provided with a plurality of convex portions long in the direction of the dehydrating axis between the holes. 2. The washing machine according to claim 1, wherein the convex portion is disposed near the hole. 3. The washing machine according to claim 1, wherein the convex portion has a gentle slope on the side close to the hole and a steep slope on the opposite side. 4. The washing machine according to claim 1, wherein the projections extend linearly and continuously in the direction of the spin-drying shaft. 5. An outer tub, a washing and dewatering tub contained in the outer tub and rotatably supported by a dehydrating shaft, and a pulsator rotatably disposed at the center bottom of the washing and dewatering tub. A motor for driving the pulsator, a clutch mechanism for switching the power of the motor during the dehydrating operation and transmitting the pulsator to the dehydrating shaft, and a pump in the pulsator for pumping up the water in the outer tub. A circulating water passage for discharging the washing and dewatering tub from the upper portion or the body portion,
The washing and dewatering tub is a dehydrating and washing machine in which a plurality of holes are formed in an inner peripheral wall, and a plurality of long protrusions are provided between the holes and the circulation channel in the direction of the dehydrating axis.