JP5250323B2 - Rotating body for washing machine or washing dryer - Google Patents

Description

  The present invention relates to a washing machine or a washing dryer having a pulsator that imparts mechanical force to laundry.

  An electric washing machine with a washing / dehydrating tub arranged vertically has a pulsator at the center of rotation of the washing / dehydrating tub, and the water flow in the washing / dehydrating tub is agitated by the rotation of the pulsator. The clothes can be washed. This pulsator is provided with a plurality of convex ribs formed radially from the center of the disk. A conventional pulsator is a method in which water filled in a washing and dewatering tank is stirred by a pulsator, and clothes are washed by the stirred water flow.

  Further, in recent new pulsators, as disclosed in Patent Documents 1 and 2, a plurality of protrusions formed radially from the rotation center part and a trough part formed between the protrusions. The protrusion is configured to gradually protrude from the center of rotation toward the outer periphery.

  Further, when the circumferential cross-sectional shape separated from the center to a predetermined position is developed, the surface of the pulsator gradually reaches the valley from the protrusion, and gradually corrugates from the valley to the protrusion. In addition, there is a pulsator in which the valley portion has a shape in which the protrusion portions are smoothly connected or the valley portion has a protrusion portion lower than the protrusion portion (see Patent Document 3).

JP 2005-80946 A JP 2005-81102 A JP-A-2005-87579

  In the conventional pulsator, the clothes are washed by the water flow generated by the plurality of ridges, and the clothes are washed by applying a turning force to the water in the washing tub by the pulsator and thereby stirring the clothes. Therefore, a sufficient amount of water is required for clothing. When the amount of water was small, the clothes collided with the ribs in the pulsator, and the clothes were damaged due to the impact and surface friction at that time. Even if the water in the washing tub is abundant, if the washing operation that emphasizes only the swirl type turning force is continued for a long time, this mechanical force causes the clothing to rub against the clothing. There was a fragile problem.

  In addition, an electric washing machine having a washing tub arranged vertically has been spotlighted. In these dry washing machines, since this pulsator is rotated in a state where water is not put into the rotating tub, there is a disadvantage that the clothes are not easily stirred and the clothes are entangled into a dumpling state.

  On the other hand, the new pulsator in recent years has a pulsator with a wave shape feature that gradually reaches the valley from the raised part and gradually rises from the valley to the raised part, and can easily give vertical vibrations. However, since there is no convex part like the previous pulsator and there is very little surface friction, the turning force of the pulsator is weak and it is difficult to disperse clothing appropriately. As a result, it was difficult to remove the lint attached between the clothes.

The present invention includes a washing / dehydrating tub , a rotating body provided at the bottom of the washing / dehydrating tub and having a water passage hole, an outer tub that encloses the washing / dehydrating tub and accumulates washing water, and the washing / dehydrating tub. In the washing and drying machine provided with a driving device that rotationally drives the water tank and the rotating body, the rotating body has a disk shape, and has a plurality of convex blades on the surface thereof, and the convex blades A concave shape is formed in the valley portion formed by gently tying, and an operation of loosening clothing is performed by two steps due to the step between the convex blade and the valley and the step between the concave shape and the valley. It is.

  According to the present invention, the two steps of the step formed by the convex shaped blade formed circumferentially from the rotation center portion that is the uppermost portion of the pulsator and the concave shaped portion formed between the convex shaped blades, the washing and dewatering tub is provided. (1) Horizontal stirring action of clothes realized by a general turning force, (2) Action of shaking clothes and shaking clothes, and (3) Normal fixed It is possible to perform an up-and-down switching operation of clothing obtained by rotating the pulsator in a free state where the washing tub is not fixed.

  Furthermore, by performing these various movements in a single washing process, it is possible to provide an optimum washing machine having good washing performance and cloth unwinding performance at the time of drying.

  The present invention will be described by taking the fully automatic washing machine of FIG. 1 as an example. As shown in FIG. 1, the outer frame 1 has an outer tank 2 suspended from the outer frame 1 by a suspension rod assembly 6, and a balance ring 4 is fastened in the upper part of the outer tank 2. A washing / dehydrating tub 3 is provided, and a pulsator 5 is attached to the shaft of the drive unit 15 at the center of the bottom of the washing / dehydrating tub 3. The drive device 15 of this embodiment is composed of a speed reduction clutch device 8, a motor 7, a belt 12, and the like. The speed reduction clutch device 8 is attached to the bottom of the outer tub 2 and is driven via the belt 12. The structure is such that the rotation of the motor 7 is transmitted. A drainage device 9 for draining water in the outer tub is further attached to the outer tub 2.

  The shape and operation of the pulsator 5 arranged in this way will be described.

  When the laundry is put into the washing and dewatering tub 3, a standard course is selected and a start button (not shown) is pushed, a prescribed amount of water is supplied into the outer tub 2, the motor 7 is energized, and washing is started. At this time, the speed reduction clutch device 8 is on the “washing” side, and the rotation of the motor 5 is transmitted only to the pulsator 5 via the speed reduction clutch device 8 (the washing and dewatering tub is in a fixed state) at about 150 r / min. The pulsator 5 rotates intermittently for a specified time with a pause time between clockwise / counterclockwise rotations. Thereafter, the deceleration clutch device 8 is switched to the washing / dehydrating tub 3 free state, and the “tank-free washing” in which the washing / dehydrating tub 3 is made free and the pulsator 5 is rotated is executed for a specified time.

  The pulsator 5 has a disk shape, and has a configuration in which valleys 13 are formed radially from the center of rotation to the outer periphery to form a dish shape. In this valley portion 13, four radial convex blades 10 from the rotation center portion toward the outer peripheral portion are formed. And in the trough part 13 between each convex blade | wing 10, the concave shape 11 provided in the reverse direction to the convex blade | wing 10 is formed. An operation of stirring the garment with the convex blades 10 formed in a circumferential shape from the center of rotation of the pulsator 5 is generated, and the garment is stirred with a step due to the concave shape 11 provided between the convex blades 10 of the pulsator 5. Generate action. By these two stirring actions, a wide variety of water flows are generated, and the clothes can be effectively washed.

  Furthermore, by the relative movement of the washing tub and the pulsator by the above-described “tank-free washing” operation, it is possible to generate a change in the vertical garment necessary for washing the garment separately from the movement of the conventional garment.

  When the washing process is completed, the motor 7 stops and the drainage device 9 operates to drain the washing water in the outer tub 2. When drainage is completed, the motor 7 is energized again, the decelerating clutch device 8 is switched to dewatering, the rotation of the motor 7 is transmitted to the washing and dewatering tub 3 and rotated at about 900 r / min, and the dewatering operation is started.

  After completing the specified time dehydration operation, a brake device (not shown) is operated to stop the rotation of the washing and dewatering tub 3. Thereafter, the washing / dehydrating tub 3 is intermittently rotated at a low speed (about 200 r / min), and the laundry stuck to the washing / dehydrating tub 3 during the dehydration operation is peeled off from the washing / dehydrating tub 3.

  Further, when there is a drying process, after rotating the washing and dewatering tub 3 for a specified time, the speed reduction clutch device 8 is switched to “washing”, and the pulsator 5 is rotated to supply warm air while loosening the laundry to perform the drying operation. To start. At this time, an effective operation of loosening laundry can be performed by the two steps formed by the convex blades 10 of the pulsator 5 and the concave shape 11 of the pulsator 5, and a finish with less wrinkles can be provided when drying is completed.

  In this invention, it has the whole structure which formed the some convex-shaped rib radially from the disk-shaped rotation center part which used the base of the pulsator to the circumference. And the concave shape is further formed in the trough between each convex-shaped rib. If it demonstrates with the cross-sectional shape of a pulsator, the operation | movement which stirs clothing by the level | step difference of the convex rib formed in the circumference from the rotation center part used as the uppermost part of a pulsator and the trough part of a base will generate | occur | produce. Furthermore, a step is generated by the concave shape formed in the valley portion of the base, and an operation of stirring clothes is generated. To provide a pulsator having both a method of washing clothes with a swirl force of water, which is an effect of two types of pulsators of the prior art, and a method of washing clothes by applying vertical vibrations, which are the effects of the two types of pulsators of the prior art. it can.

It is a main part sectional view of a washing machine provided with a pulsator of one example of the present invention. It is an external appearance perspective view which shows the pulsator of one Example of this invention. It is the figure seen from P which shows the pulsator of one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer frame 2 Outer tub 3 Washing / dehydration tub 4 Balance ring 5 Pulsator 6 Hanging rod assembly 7 Motor 8 Deceleration clutch device 9 Drainage device 10 Convex blade 11 Concave shape 12 Belt 13 Valley 15 Drive device

Claims (3)

A washing / dehydrating tub , a rotating body provided at the bottom of the washing / dehydrating tub and having a water passage hole, an outer tub containing the washing / dehydrating tub and storing washing water, the washing / dehydrating tub and the rotation In a washing and drying machine provided with a driving device for rotationally driving the body, the rotating body has a disc shape, and has a plurality of convex blades on its surface, and gently connects the convex blades. A concave shape is formed in the formed trough, and an operation of loosening clothing is performed by two steps due to a step between the convex blade and the trough and a step between the concave shape and the trough. Washing and drying machine.   2. The washing / drying machine according to claim 1, wherein the rotating body has a disk shape that is dish-shaped from the center toward the outer periphery. A washing / dehydrating tub , a rotating body provided at the bottom of the washing / dehydrating tub and having a water passage hole, an outer tub containing the washing / dehydrating tub and storing washing water, the washing / dehydrating tub and the rotation In the washing / drying machine rotating body in the washing / drying machine provided with the drive device for rotationally driving the body,
The rotating body has a disk shape, and has a plurality of convex blades on the surface thereof, and forms a concave shape in a valley formed by gently connecting the convex blades, and the convex blades. An operation for loosening clothes is performed by two steps of a step between the groove and the valley and a step between the concave shape and the valley .

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