JP2007007091A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the cleaning power and prevent the laundry from being damaged by rubbing between the laundry and the pulsator.
In a washing machine for washing laundry by rotating a pulsator at the bottom of the washing tub with a motor 24 at the bottom of the water tub via a washing shaft, the pulsator 9 includes a disc-shaped main body 35 and the main body 35. Compared to the resin material, the blade crest 34 radiating from the center of the surface is formed of a resin material, and the surface of the pulsator 9 has a frictional force that attracts the laundry when contacting the laundry. By providing the grip portion 43 formed of a high-quality different material, the rotation of the pulsator 9 can be easily transmitted to the laundry, the cleaning power can be improved, and the laundry can be prevented from being damaged due to rubbing between the laundry and the pulsator 9.
[Selection] Figure 2

Description

  The present invention relates to a washing machine including a stirrer rotatably at the bottom of a washing tub.

In a conventional washing machine, a pulsator provided to rotate horizontally at the bottom of a washing tub provided inside a water tub has a blade body protruding radially from the center on a circular main body member. Some of them are provided with a small pulsator that can freely rotate between the blades on the surface of the main body. During this washing process, the pulsator is rotated to generate a complex water flow in the aquarium with the Haneyama and small pulsators. Further, the rotation of the pulsator is transmitted to the laundry in contact with the pulsator and the laundry is rotated, so that the laundry is washed against the generated water flow and the laundry (see, for example, Patent Document 1).

In another washing machine, a pulsator provided at the bottom of the water tub is configured by a blade body projecting radially from the center on a circular main body member that is an integrally molded product of resin. By attaching a stirring blade member formed of a resin material having a higher hardness than the molded resin material of the main body to the top surface in a removable manner, a hard member such as a chuck added to the laundry during the washing process Even if the stirring blade member is in contact with the surface, the stirrer blade member is hard so that it is difficult to be damaged, and there is provided a member that reduces damage to the laundry due to the scratch (for example, see Patent Document 2).
JP 2000-157775 A (see page 6 and FIG. 12) JP 2000-14958 A (see page 4 and FIG. 2)

In the washing machine disclosed in Patent Document 1, when the rotation of the pulsator is transmitted to the laundry in contact with the pulsator, the laundry may get over the blade and slide on the surface of the pulsator in response to the rotation of the blade. The laundry has a problem that it follows the rotation speed of the pulsator at a low rotation speed, and the rotation of the pulsator is difficult to be transmitted to the laundry, and the washing power is weak. In addition, since the blades and the laundry slide, the laundry is rubbed, and there is a problem that damage due to wear occurs.

In addition, in order to suppress the sliding of these laundry, if the hills of the pulsator are provided high, the area where the blades face the washing water will be widened, so that more washing water will be stirred up than necessary. There was a problem that extra power would be generated.

Further, the above-described pulsator and the washing machine of Patent Document 2 are provided to prevent damage to the laundry. According to the washing machine of Patent Document 2, when the laundry is in contact with the pulsator, the pulsator is washed. Since the frictional force against the object is weak, the laundry slides on the surface of the pulsator, and the rotation of the pulsator is not sufficiently transmitted to the laundry. For this reason, the rotational speed of the laundry is lower than the rotational speed of the pulsator, and there is a problem that the cleaning power is weak. Further, there is a problem that the laundry and the stirring blade member are rubbed due to sliding of the laundry and the pulsator, and the laundry is damaged.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a washing machine capable of increasing the cleaning power and preventing the laundry from being damaged by rubbing between the laundry and the pulsator.

In order to achieve the above object, a washing machine according to the present invention is provided with a stirrer rotatably at the bottom of a wash tub provided inside a water tub, and a washing shaft is provided by a motor disposed outside the water tub. In the washing machine that rotates and drives the laundry, the stirrer is formed of a predetermined resin material with a disc-shaped main body and blade peaks that project radially from the center of the surface of the main body. And
A main feature is that a grip portion is provided on the surface of the agitator that has a higher frictional force than the predetermined resin material when the laundry comes into contact with the laundry.

According to the above configuration, since the grip portion having a higher frictional force than the resin material of the main body is provided on the upper surface of the pulsator, the laundry can be prevented from sliding on the surface of the pulsator during rotation of the pulsator. By obtaining a fast moving speed that follows the rotation speed of the pulsator,
The washing power of the laundry can be increased. Furthermore, since the sliding of the pulsator surface of the laundry can be suppressed, damage caused by rubbing between the laundry and the pulsator can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A first embodiment in which the washing machine of the present invention is applied to a washing / drying machine will be described with reference to FIGS. 1 to 5.
FIG. 1 is a longitudinal sectional view showing a schematic configuration of the entire washing / drying machine 1. FIG. 2 is an enlarged perspective view of the pulsator 9. FIG. 3 is a rear view of the pulsator 9. 4 shows X in FIG.
It is sectional drawing of the blade mountain 34 of the pulsator 9 cut | disconnected and shown along a -X line. FIG. 5 is an enlarged view of a main part for explaining the operations of the laundry and the pulsator in the washing process.

In the washing / drying machine 1, as shown in FIG. 1, a water supply port 8 and a rotatable outer lid 5 are attached to the upper surface of the outer frame 2, and the laundry input port 7 is opened and closed by the outer lid 5. And in the outer frame 2,
A water tank 3 having an inner lid 6 attached to the upper surface so as to be openable and closable is suspended and supported in a vibration-proof state.

In this water tub 3, a washing tub 4 for storing laundry (which becomes a drying cabinet when drying) is rotatably supported, and the bottom of the washing tub 4 agitates the washing water and the laundry. A pulsator 9 as a body is rotatably supported. A large number of small holes 10 for centrifugal dehydration and ventilation are provided on the side wall of the washing tub 4.

Further, a water supply hose (not shown) continuing from the water supply port 8 is connected to the upper part of the water tank 3 so that washing water can be supplied into the water tank 3. In addition, the tank 3
A hot air supply mechanism 15 for blowing hot air is provided therein, and the hot air supply mechanism 15 sucks outside air from the external suction port 11 by a fan 16 driven by a fan motor 17,
Hot air is generated by heating with the heater 18. The generated hot air passes through the supply duct 19 connected from the hot air supply mechanism 15 and is blown into the water tank 3 from the upper part of the water tank 3.

On the other hand, a circulation duct 20 that circulates hot air into the water tank 3 is provided in the vertical direction on the outer wall of the water tank 3, and a discharge port 21 is provided on the lower side wall of the water tank 3, and a circulation port 22 is provided above the water tank 3. It is connected to the water tank 3.
Further, an exhaust port 30 is provided at the upper part of the circulation duct 20 to exhaust a part of the hot air to be circulated. The exhaust port 30 is provided with a filter 23 that can collect lint and the like of the laundry floating in the circulation duct 20.

On the other hand, on the outer bottom surface of the water tub 3, a motor 24 (not shown) that transmits rotational force to the pulsator 9 and the washing tub 4 via the washing shaft 25 and the dewatering shaft 26, and the washing shaft 25 and the dewatering shaft are provided. 26
A mechanism 27 having a clutch mechanism (not shown) for switching between the two is provided. Mechanism part 2
The clutch mechanism 7 has a function of switching the transmission of the rotational force of the motor 24 and transmitting it to the washing shaft 25 or the dehydrating shaft 26. The motor 24 is configured to wash the laundry by causing the washing water to flow in the washing tub 4 by rotating the pulsator 9 or the washing tub 4 forward / reversely or intermittently via the washing shaft 25 and the dehydrating shaft 26. And so on.
Further, a drain valve 28 and a drain hose 2 for draining the washing water in the tank 3 are provided on the outer bottom surface of the tank 3.
9 etc. are arranged.

On the other hand, the pulsator 9 has a disk shape in which the main body 35 is integrally formed of a synthetic resin (for example, polypropylene) as shown in FIG. 2, and the upper surface of the main body 35 has an inverted bowl-shaped boss portion in the center. 36, and six blades 34 are formed from the boss portion 36 to the outer periphery of the main body 35 so as to project at substantially equal intervals so as to form an arc.
As shown in FIG. 3, plate-like ribs 38 project radially from the center annular support portion 37 on the back surface of the main body 35. Further, on the back of the central boss portion 36, the motor 2 is connected to the pulsator 9.
A shaft hole 39 for engaging the washing shaft 25 is provided so that the rotation of the washing shaft 25 can be transmitted.
5 and the pulsator 9 do not idle.

Here, the blade mountain 34 provided on the surface of the pulsator 9 will be described with reference to FIG.
The blade hill 34 has a substantially trapezoidal cross section, and an inclined surface 41 is formed in the forward / reverse rotation direction from the upper surface portion 40.
The upper surface portion 40 is formed with a long groove portion 42 in the outer circumferential direction, and a grip formed of a softer material (for example, elastomer or rubber) than the synthetic resin forming the main body 35 in the groove portion 42. The portion 43 is fitted with an interference fit.

The grip portion 43 has a higher frictional force than the synthetic resin forming the main body 35, and when the laundry being washed comes into contact with the rotating grip portion 43, the laundry is gripped by the friction. It is easy to get caught on the contact surface.
Further, in the state in which the grip portion 43 and the blade ridge 34 are fitted, a communication hole 33 that penetrates from the surface of the grip portion 43 to the back surface of the main body 35 through the blade ridge 34 is formed.

Next, the operation of the washing / drying machine having the above configuration will be described.
First, in the washing step, the outer lid 5 and the inner lid 6 are opened, the laundry is poured into the washing tub 4 from the laundry loading port 7, and water is fed from the water supply port 8 with the drain valve 28 closed. Store the washing water. The pulsator 9 is alternately rotated in the forward and reverse directions by the motor 24 to wash the laundry S.
In this washing process, the laundry S is agitated by the complicated water flow generated by the rotation of the pulsator 9 and the blades 34 pushing the washing water, and the inside of the washing tub 4 is complicated by rotating in contact with the pulsator 9. Move and wash.

Here, the operation of the laundry S when it is in contact with the upper surface of the rotating pulsator 9 during the washing process will be described. As shown in FIG. 5, when the laundry S is in contact with the grip portion 43 of the pulsator 9, the laundry S is caught on the contact surface with the grip portion 43 by the strong frictional force of the grip portion 43, and the grip portion 43. Move at approximately the same rotation speed B as
It rotates following the grip part 43. That is, the difference (relative speed) between the rotational speed A and the rotational speed B generated when the laundry S relatively moves and slides on the surface of the pulsator 9 is small.

In other words, the sliding movement (sliding friction or rotational friction) that relatively moves on the contact surface with the grip portion 43 of the laundry S, which occurs when the rotational speed B becomes slower than the rotational speed A, is unlikely to occur. That is, the rotational force of the pulsator 9 is easily transmitted to the laundry S.

Further, the wash water is pushed out to the outer periphery of the pulsator 9 by rotating the rib 38 provided on the back surface of the pulsator 9 (arrow C). By the flow of the washing water in the direction of arrow C, the back side of the pulsator 9 becomes negative pressure, and the water above the pulsator 9 is sucked below the pulsator 9 through the communication hole 33 formed in the grip part 43 (arrow) D). Therefore, the washing water is caused to flow from the arrow D to the arrow C direction. At this time, since the laundry S in the vicinity of the grip portion 43 is also sucked to the grip portion 43 together with the washing water sucked into the communication hole 33, the laundry S in contact with the grip portion 43 is more gripped by the grip portion 43. It is easy to rotate following the rotation speed A.

Then, at the moment when the rotation of the pulsator 9 is reversed by the driving of the motor, the laundry S is separated from the grip portion 43 due to an impact during the rotation. Next, another laundry S is again caught by the grip portion 43 and rotates at substantially the same speed following the rotational speed of the pulsator 9.
As described above, the laundry S is caught or separated from the grip portion during the washing process, and obtains a high rotation speed following the rotation speed of the pulsator as needed.

Next, in the dehydration step, the drain valve 28 is opened and the washing water in the water tub 3 is drained from the drain hose 29, and then the washing tub 4 is rotated in one direction at high speed via the dehydration shaft 26 by the motor 24. The water contained in the laundry S is centrifugally dehydrated from the small hole 10 on the side wall of the washing tub 4, and the water tub 3
It is discharged inside and drained from the drainage hose 29.

In the drying process, the operation of rotating the pulsator 9 in the forward and reverse directions and the operation of rotating the water tank 3 in one direction are alternately performed while supplying the hot air while the drain valve 28 is opened. The mechanism 15 is controlled to supply hot air into the water tank 3.
As shown in FIG. 1, this hot air (for example, 60 to 70 ° C.) drives the fan motor 17 to rotate the fan 16 and energizes and drives the heater 18.
The air is sucked from the external suction port 11 and heated by the heater 18, and is supplied to the water tub 3 and the washing tub 4 through the supply duct 19 to come into contact with the laundry S and dry the laundry S. .

Then, the hot air E containing moisture in contact with the laundry S has a small hole 1 as shown by an arrow F in FIG.
0, after passing through the duct discharge port 21 in the circulation duct 20 along the outer wall of the water tank 3, and then entering the water tank 3 from the circulation port 22 connected from above the water tank 3 toward the water tank 3. It is circulated by flowing in again.
A part of the hot air passing through the circulation duct 20 is exhausted from the exhaust port 30, and the exhausted hot air rises and is exhausted out of the washing / drying machine 1 through the gap of the outer lid 5. At this time, the lint and the like contained in the hot air after coming into contact with the laundry S are removed by the filter 23 when exhausted from the exhaust port 30 to the outside of the circulation duct 20.

Here, the operation of the laundry S in the drying step will be described.
While rotating the pulsator 9 alternately forward and backward under the control of the motor 24, the laundry S is loosened (flapping operation), and hot air is applied to the grip S 43 with frictional force. The flapping force that causes the pulsator 9 to flapping when hooked (for example, the force applied to the laundry by the impact at the time of reverse rotation of the pulsator 9 is transmitted) is transmitted, and the laundry S The contact surface between the laundry S and hot air is switched.
By repeating this flapping operation, the hot air takes moisture from the laundry through the gap formed by the movement of the laundry S and dries the laundry.

As described above, the present embodiment has the following effects.
In the pulsator 9, the grip portion 43 formed of a material (rubber or elastomer) whose frictional force is higher than that of the resin material of the main body 35 is provided on the upper surface of the blade hill 34. In the case where it is in contact with the laundry part, the contacted part of the laundry is likely to be caught on the grip part 43, so that the rotational force is easily transmitted to the laundry S, and the grip part 43 is rotated at a high speed. Can increase the cleaning power.

In addition, since sliding friction and rolling friction that are sliding movements between the blades 34 and the laundry can be suppressed,
Wear due to friction between the laundry S and the pulsator 9 can be reduced. Therefore laundry S
Thus, it is possible to provide a washing / drying machine in which the pulsator 9 is not easily damaged.

For this reason, in the conventional pulsator 9 having a raised Haneyama 34, the area where the Haneyama 34 pushes the washing water increases, and there is a risk that power is consumed due to the extra force pushing the washing water. In the present embodiment, since the laundry S can be hooked on the grip portion and the rotation can be transmitted sufficiently, the power consumption can be reduced, and further, the material of the pulsator 9 is not increased more than necessary. Costs are also reduced.

In the drying process, by providing the grip portion 43, the frictional force that the laundry hangs on the pulsator 9 becomes strong, and the flapping force of the pulsator 9 is easily transmitted by the frictional force. Easy to flapping without sliding against rotation. Therefore, during the flapping operation, the hot air is easily ventilated through the gaps in the laundry S, and the drying efficiency is improved.

Further, with the grip portion 43 fitted to the blade ridge 34, the main body 3 is viewed from the upper surface of the grip portion 43.
5 By providing the communication hole 33 penetrating to the back surface and providing the ribs 38 radially on the back surface of the main body 35, the laundry S can be sucked to the grip portion 43 in the washing process, Since the force with which the laundry S follows is increased, the rotation of the pulsator 9 is transmitted to increase the cleaning power. Further, wear due to friction between the pulsator 9 and the laundry S can be reduced. This is because the rotation of the rib 38 provided on the back surface of the pulsator 9 causes the washing water on the back side of the pulsator 9 to be pushed to the outer periphery, and the negative pressure is generated.
3, the laundry S is sucked like a pump through the grip 3.
It happens by being sucked on.

The grip portion 43 is fitted and joined to the groove portion 42 of the blade crest 34 in an interference fit state. However, the material of the grip portion 43 is insert-molded into the groove portion 42 in advance in a main body 35 formed of synthetic resin. May be integrally coupled. In this case, the groove portion 42 and the grip portion 43 are in close contact with each other without any gap, and the washing water does not penetrate into the groove portion 42. Furthermore, even when the pulsator 9 is expanded by hot air in a drying process or the like, the main body 35 and the blade hill 34
The gap between the grip part 43 and the groove part 42 due to the difference in expansion coefficient between the material and the material of the grip part 43 is eliminated.

Next, a second embodiment according to the present invention will be described with reference to FIG.
The present embodiment is different in the installation part and shape of the grip part, and other configurations are configured in the same manner as in the first embodiment, and the same portions are denoted by the same reference numerals and description thereof is omitted. In the following, different points will be described.
FIGS. 6A and 6B are enlarged views of the pulsator 9 according to the second embodiment, in which FIG. 6A is a plan view and FIG. 6B is a YY sectional view of the grip portion 53 of the pulsator 9.

The pulsator 9 shown in FIG. 6 is also disposed on the inner bottom of the washing tub 4 as in the first embodiment, and is fixed to the washing shaft 25 that transmits the rotation of the motor 24.
The main body 35 of the pulsator 9 is integrally formed of resin. The shape of the pulsator 9 is substantially disc-shaped, and the surface thereof has six arcuate blades 34 projecting radially from the center. A boss portion 36 for fitting and fixing the shaft 25 (not shown) is provided, and radially plate-like ribs 38 (not shown) are provided on the back surface.
In addition, the area of the flat portion 55 between adjacent blade ridges 34 is configured wider than the upper surface 40 of the blade ridges 34.

The flat portion 55 is provided with a grip portion 53, and the grip portion 53 is connected to the main body 3.
5 and the resin material of the blades 34 are formed of a hard material (for example, polyacetal) different from the resin material.
The grip portion 53 has a flat trapezoidal shape, and a plurality of arcuate protrusions 54 that are uneven portions that are substantially parallel to the arc shape of the blade ridge 34 (substantially perpendicular to the rotation direction of the blade ridge 34) are formed on the upper surface.
The grip portion 53 is fitted into a groove portion 52 formed in a flat portion 55 between the blade ridges 34 of the main body 35 and is fixed from the back of the main body 35 with a screw (not shown) or an adhesive. Yes.
Further, in the state where the grip portion 53 and the groove portion 52 of the flat portion 55 are fitted, a plurality of communication holes 56 penetrating from the front surface of the grip portion 53 to the back surface of the main body 35 are formed between the respective arcuate projections 54. .

According to the present embodiment configured as described above, first, in the washing step, the laundry is washed by rotating the pulsator 9 forward and backward with the motor 24 in a state where the washing water is stored in the water tank 3 as described above.
In this washing process, the laundry is washed by floating in the washing water due to the water flow of the washing water generated by the rotation of the pulsator 9 or rotating in contact with the upper surface of the rotating pulsator 9.

Here, the operation of the laundry when it is in contact with the upper surface of the rotating pulsator 9 in the washing process will be described.
In this case, when the laundry comes into contact with the grip portion 53, the laundry is caught on the contact surface of the grip portion 53 according to a stronger frictional force due to the provision of the arcuate protrusion 54.
Furthermore, the rib 38 on the back surface of the pulsator 9 rotates and pushes the wash water on the back side of the pulsator 9 toward the outer periphery of the pulsator 9, so that the water above the pulsator 9 is sucked into the communication hole 56 formed in the grip part 53. When the laundry is sucked onto the grip portion 53 together with the sucked washing water, the contact portion of the laundry with the grip portion 53 becomes the grip portion 5.
3, and rotates following the grip portion 53.
Therefore, rubbing (sliding friction or rotational friction) due to sliding (relative movement) of the laundry on the contact surface with the grip portion 53 hardly occurs.

As described above, the effect of the second embodiment is that the arcuate protrusion 54 is formed in the grip portion 53 substantially at right angles to the rotation direction, and the grip portion 53 is not the upper surface of the blade ridge 34 but the flat portion 55 of the main body 35.
Since the grip portion 53 is provided, the laundry is caught on the grip portion 53 having a relatively large area, so that the rotation of the pulsator 9 is easily transmitted to the laundry, and the washing power of the laundry is improved. Furthermore, since the sliding motion of the pulsator 9 and the laundry is difficult to occur, the wear of the laundry and the pulsator 9 is reduced.
In the second embodiment, the arcuate protrusion 54 is formed as an uneven portion on the surface of the grip portion 53. However, if the surface is further textured, the frictional force becomes higher.

Next, a third embodiment according to the present invention will be described with reference to FIGS.
In addition, this embodiment differs in the material, form, and installation site | part of the grip part 53, About another structure, it is comprised similarly to 1st Embodiment, and attaches | subjects the same code | symbol about the same part. The explanation is omitted, and different points are explained below.
FIG. 7 is an enlarged plan view of the pulsator 9 of the third embodiment.
FIG. 8 is an enlarged plan view of the conductive part 64 as a main part. FIG. 9 is an assembly cross-sectional view of the main parts of the pulsator 9 and the washing shaft 25.

In FIG. 7, the pulsator 9 is disposed on the inner bottom of the washing tub 4 in the same manner as described above, and the motor 24
Is engaged with and fixed to the washing shaft 25 that transmits the rotation. The washing shaft 25 is electrically grounded.

The main body 35 of the pulsator 9 is integrally formed of resin, has a substantially disk shape, and has an arcuate blade ridge 34 projecting radially from the center thereof, and a washing shaft 25 at the center portion.
A boss portion 36 is provided to be fitted and fixed to the plate, and radially on the rear surface, plate-like ribs 38 (FIG. 9).
Reference) is provided.
A conductive portion 64 made of a conductive material (for example, copper, stainless steel, conductive plastic) is provided above the boss portion 36 and the blade ridge 34.
As shown in FIGS. 8 and 9, the conductive portion 64 has a central portion formed in a disk portion 69, and three grip portions 63 radially extend from the disk portion 69 along the blade ridge 34. It is configured.
The disc portion 69 has a concave shape with respect to the grip portion 63, and the outer peripheral portion of the disc portion 69 is on the surface of the pulsator 9 (the upper surface of the boss portion 36 and outside the cap portion 65 described later). It is exposed and a plurality of small protrusions 71 are formed on the grip part 63 so that the laundry can be easily caught.

The disk portion 69 is fitted into the central groove 70 of the boss portion 36, and the grip portion 63 is fitted into the groove portion 62 on the upper surface portion of the blade hill 34.
A resin cap portion 65 is fitted into the central groove 70 so as to cover the upper portion of the concave portion of the disk portion 69. And when the disc part 69 and the cap are couple | bonded with these boss | hub parts 36, the cap part 65, the disc part 69, and the boss | hub part 36 are each in the center.
A threaded hole 66 is formed in the upper end of the washing shaft 25.
7 is connected.
Then, the conductive screw 68 is grounded via the screw 68 by inserting the conductive screw 68 into the communication screw hole 66 from the cap portion 65 side and screwing it into the screw hole 67 of the washing shaft 25 to be fastened. Thus, the conductive wash shaft 25 is electrically connected.

According to the present embodiment configured as described above, in the drying process, the washing tub 4 and the pulsator 9 or only the pulsator 9 are rotated by the motor 24 with the drain valve 28 shown in FIG. The mechanism 15 is driven, and hot air generated by the heater 18 is blown into the washing tub 4 through the duct by the fan 16.
The hot air blown into the washing tub 4 circulates in the washing tub 4, and the wet laundry is deprived of moisture contained in the laundry by the hot air.
At this time, hot air is applied while loosening the laundry (flapping operation) by rotating the pulsator 9 alternately forward and backward. In this flapping operation, the laundry is pulled to the grip portion 63 by the frictional force of the small protrusions 71. The flapping power of the pulsator 9 is fully transmitted,
As the laundry moves, the laundry moves and the contact surface with the hot air is switched.
By repeating this flapping operation, the hot air takes moisture from the laundry through the gap of the movement of the laundry and dries the laundry.

Further, when performing this flapping operation, static electricity may be generated due to the laundry rubbing against each other. The generated static electricity is temporarily charged in the laundry, but when the laundry charged with the static electricity comes into contact with the grip portion 63 of the conductive portion 64, the static electricity passes through the conductive grip portion 63 and the disk portion 69 and the screw 68. , Escape to the grounded wash shaft 25.

As described above, the effect of the third embodiment is that the small protrusion 71 is provided on the grip portion 63, so that the frictional force of the grip portion 63 is higher than that of the resin material of the main body 35, and the flapping force of the pulsator 9 is easily transmitted. .
Furthermore, since the grip portion 63 is formed of a conductive material and is electrically connected to the grounded conductive washing shaft 25 by a screw 68, the pulsator 9 and the laundry are rubbed during the drying process. The generated static electricity can be released through the grip part 63, the screw 68, and the washing shaft 25. Therefore, the user does not feel shock or pain due to static electricity when taking out the laundry from the washing tub 4 after the drying process.
In the present embodiment, the conductive portion 64 is formed by integrally forming the disc portion 69 and the grip portion 63, but these may be separate, and the grip portion is electrically connected to the screw 68 and the electric portion. As long as they are connected.

Further, an antibacterial material is preferably used for the grip portion 63 of these embodiments. For example, the antibacterial coating may be applied to the surface of rubber in which an antibacterial agent is blended with a resin, a copper plate having an antibacterial action, or the grip part 63. This makes it difficult for bacteria to adhere to the laundry.
Moreover, when using an antibacterial material in 3rd Embodiment, it is good to make the material of the electroconductive part 64 into the stainless steel which added copper and silver. In particular, when the conductive member 64 made of silver-added stainless steel (stainless steel added with finely dispersed silver) is installed so as to be exposed on the surface of the pulsator 9, the antibacterial and corrosion resistance causes the inside of the washing tub 4 It has the effect of suppressing the propagation of germs and the like in the inside and the laundry, and suppressing corrosion such as discoloration of the conductive portion 64.
In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

The longitudinal cross-sectional view which shows schematic structure of the whole washing-drying machine to which this invention is applied. The expansion perspective view of the pulsator which shows the 1st Embodiment of this invention. The enlarged back view of a pulsator. Sectional drawing of the blade | wing part cut | disconnected and shown along the XX line of FIG. The enlarged view of the principal part for demonstrating the operation | movement of the laundry in a washing process The enlarged plan view (a) of the pulsator which shows the 2nd Embodiment of this invention, and its YY sectional drawing. The enlarged plan view of the pulsator which shows the 3rd Embodiment of this invention. The enlarged plan view of the principal part. FIG.

Explanation of symbols

In the figure, 1 is a washing dryer, 2 is an outer frame, 3 is a water tub, 4 is a washing tub, 5 is an outer lid, 6 is an inner lid, 7 is a laundry inlet, 8 is a water supply port, 9 is a pulsator, 10 Is a small hole, 11 is an external suction port, 15 is a hot air supply mechanism, 16 is a fan, 17 is a fan motor, 18 is a heater, 19 is a supply duct, 20
Is a circulation duct, 21 is a discharge port, 22 is a circulation port, 23 is a filter, 24 is a motor, 25 is a washing shaft, 26 is a dewatering shaft, 27 is a mechanism, 28 is a drain valve, 29 is a drain hose, 30 is exhaust mouth,
33, 56 and 72 are communication holes, 34 is a blade mountain, 35 is a main body, 36 is a boss portion, 37 is a support portion,
38 is a rib, 39 is a shaft hole, 40 is an upper surface portion, 41 is an inclined surface, 42, 52 and 62 are groove portions, 43
53 and 63 are grip portions, 54 is an arcuate projection (uneven portion), 55 is a flat portion, 64 is a conductive portion, 65 is a cap portion, 66 is a communication screw hole, 67 is a screw hole, 68 is a screw, 69 Is the disk part, 7
0 indicates a central groove, and 71 indicates a small protrusion.

Claims (6)

A stirrer is rotatably provided at the bottom of the washing tub provided inside the water tub,
In the washing machine for washing the laundry, the stirrer is rotationally driven through a washing shaft by a motor disposed outside the water tank,
The stirrer is formed of a predetermined resin material with a disc-shaped main body and a blade ridge protruding radially from the center on the surface of the main body,
A washing machine characterized in that a grip portion is provided on the surface of the agitator that has a higher frictional force than the predetermined resin material when the laundry comes into contact with the laundry. 2. The washing machine according to claim 1, wherein the grip portion is formed of a material different from the predetermined resin material, and the material is softer and has a higher frictional force than the predetermined resin material. 2. The washing machine according to claim 1, wherein the grip part forms an uneven part for hooking the laundry on the surface. The stirrer is provided with ribs projecting radially from the center on the back surface of the main body,
2. A communication hole penetrating from the front surface of the grip portion to the back surface of the main body is provided.
The washing machine described. The washing machine according to claim 1, wherein the grip portion is provided on an upper surface of the blade. 2. The washing machine according to claim 1, wherein the grip portion is provided on the surface of the main body between the blades.

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