JP3864521B2 - Combined washing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combined dehydrating washing machine that automatically performs a series of steps of washing, rinsing, and dehydrating.
[0002]
[Prior art]
Conventionally, this type of dehydrating washing machine has a configuration as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown, the outer tub 1, the bottom portion encloses the washing and dewatering tank 3 which is arranged rotatably Paruse motor 2, and is vibration proof supported by hanging rods 4 in the washing outside frame 5. A large number of water passage holes 6 and beads 7 are provided at equal intervals on the inner peripheral wall surface of the washing and dewatering tub 3. With this configuration, washing, rinsing, and dehydration processes are automatically performed.
[0004]
However, in this configuration, an unpleasant wind noise is generated by the water passage holes 6 and the beads 7 having an equal interval pitch on the inner peripheral wall surface of the washing and dewatering tub 3. This wind noise is a constant frequency sound determined by the number of rotations of the washing and dewatering tub 3 and the number of water passage holes 6 and beads 7 as shown in the following equation.
[0005]
f = n × Z
Where f: wind noise frequency (Hz)
n: Rotation frequency of the washing and dewatering tub 3 (number of rotations (rpm) / 60) (Hz)
Z: Number of water passage holes or beads with equal pitches In order to solve this problem, a configuration has been proposed in which the water flow holes 6 are arranged at unequal pitches as shown in FIG.
[0006]
[Problems to be solved by the invention]
However, in such a conventional configuration, since the water passage holes 6 and the beads 7 have a non-uniform pitch, there is a problem that the pitch interval is non-uniform and the cleaning performance and dewatering performance are deteriorated. It was. In addition, there is a problem that unevenness in dehydration and unevenness in washing are likely to occur.
[0007]
Moreover, since the inner peripheral wall surface of the washing and dewatering tub 3 is a conspicuous part for the user, there is a problem that it is not preferable in terms of design.
[0008]
The present invention solves the above-mentioned problems, and rectifies wind noise generated inside the washing and dewatering tub during dewatering rotation, and also distributes wind noise of a certain frequency to reduce the overall noise value. It is an object.
[0009]
[Means for Solving the Problems]
The present invention achieves the above object, and an outer tub for receiving water during dehydration is positioned outside a washing / dehydrating tub having a central axis of rotation in the vertical direction, and a pulsator is rotatably provided at the bottom of the washing / dehydrating tub. The pulsator and the washing / dehydrating tub are driven by a motor. The inner peripheral wall surface of the washing and dewatering tank projected long plurality of bi over de in substantially axial direction, and bead by dividing in the vertical direction, a gap is formed between the upper and lower bead, the circumferential direction by adjacent gap is configured to the dewatering rotation direction of the washing and dewatering tank located at a position to rise as one proceeds in the reverse direction at, so as to form a row by the gap which is inclined with respect to the rotation axis direction It is a thing.
[0010]
This makes it possible to rectify wind noise generated inside the washing and dewatering tub during dewatering rotation by creating a flow of wind that rises along the inclination of the bead gap, and the bead length changes sequentially. By doing so, it is possible to disperse wind noise at a constant frequency and reduce the overall noise value.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention comprises a washing / dehydrating tub having a central axis of rotation in the vertical direction, an outer tub located outside the washing / dehydrating tub for receiving water during dehydration, and the washing / dehydrating tub. a pulsator rotatably arranged with the bottom of the tank, the pulsator and the washing and dewatering tank and a motor for driving a long plurality of bi over de in substantially axial direction on the inner peripheral wall surface of the washing and dewatering tank The bead is divided in the vertical direction to form a gap between the upper and lower beads, and the gap adjacent in the circumferential direction advances in the direction opposite to the dewatering rotation direction of the washing and dewatering tub. As a result, the wind noise generated inside the washing and dewatering tub during dehydration rotation is formed. Along the rows of bead gaps Rectified by making the flow of air to raise, also, by the bead length successively changed, it is possible to reduce the overall noise level by distributing wind noise constant frequency. In addition, the bead gap forms a gap between the garment and the washing / dehydration tank, while the clothes are stuck to the washing / dehydration tank in the dehydration process, and the row of bead gaps becomes a passage for water to flow during dehydration. The efficiency of dewatering can be improved with the above, and a longitudinal bead is projected in the direction of the rotation axis, and further the bead is divided in the vertical direction, the sectional modulus in the direction of the rotation axis is increased, and It is possible to prevent deformation to a barrel type or a spelling type, and to improve rigidity.
[0012]
The invention of claim 2 is the invention according to the claim 1, which is configured as columns to a plurality of presence by between gap and the inclination angle and inclination number corresponding to the dewatering rotation number, In addition, wind noise can be reduced more efficiently and dewatering efficiency can be improved.
[0013]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the bead cross section has a substantially triangular shape, and the clothes are less likely to stick to the washing and dewatering tub during the dehydration process. In addition, the tip of the substantially triangular shape becomes a washing plate effect, and washing efficiency can be improved. In addition, by setting a substantially triangular gradient appropriately, it is possible to release wind due to dehydration rotation and to prevent wind noise.
[0014]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a water passage hole is provided in a gap between beads by division in the vertical direction. Dehydration efficiency can be improved by increasing the number of water passage holes on the passage through which the water flows .
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
Example 1
As shown in FIG. 1, the outer tub 11 is vibration-damping support to wash the outside frame 15 by a bottom encloses the washing and dewatering tank 13 which is disposed rotatably a Paruse motor 1 2 unit, hanging rod 14 . The motor 16 drives the pulsator 12 and the washing / dehydrating tub 13 via the speed reduction mechanism 17.
[0017]
As shown in FIG. 2, a plurality of long beads 18 project in the direction of the rotation axis on the inner peripheral wall surface of the washing and dewatering tank 13, and the beads 18 are divided in the vertical direction. A gap 18a is formed between them, and the gap 18a adjacent in the horizontal direction is configured to be located at a position that rises in the direction opposite to the dewatering rotation of the washing and dewatering tub 13.
[0018]
The operation in the above configuration will be described. When the washing and rinsing process is finished and the dehydration process is started, the washing and dewatering tank 13 starts to rotate. Eventually, when reaching the steady state of dehydration where the rotational speed is stable, a wind noise (eg, 480 Hz) with a certain frequency is generated. Here, a wind flow 19 rising along the row of bead gaps 18a on the inner peripheral wall surface of the washing and dewatering tank 13 is generated, and a small vortex (turbulent flow) generated by the water flow holes 20 and the beads 18 is drowned out. By rising while rectifying, it is possible to disperse wind noise with a constant frequency and reduce the overall noise value.
[0019]
In addition, the bead gap 18a forms a gap with respect to the garment sticking to the washing and dehydration tank 13 in the dehydration process, and the row of the bead gap 18a serves as a passage 21 through which water flows during dehydration. Dehydration efficiency can be improved.
[0020]
Further, by providing a vertically long bead 18 in the direction of the rotation axis and further dividing the bead 18 in the middle, the sectional modulus in the direction of the rotation axis is increased, and the washing / dehydrating tub 13 is deformed into a barrel type or a zipper type. Can be prevented, and the rigidity can be improved.
[0021]
(Example 2)
As shown in FIG. 3, a plurality of long beads 18 project from the inner peripheral wall surface of the washing and dewatering tub 13 in the direction of the rotation axis, and the beads 18 are divided in the vertical direction, and there are gaps between the divided portions. 18a is formed, and there are several rows of beads 18a. Other configurations are the same as those of the first embodiment.
[0022]
The operation in the above configuration will be described. The operation for reducing the overall noise value by dispersing the wind noise of a certain frequency is the same as that in the first embodiment, and the description thereof will be omitted. Here, by having a plurality of rows of bead gaps 18a, it is possible to set the inclination angle (for example, 45 °) and the number of inclinations (for example, four) corresponding to the dehydration steady rotation speed (for example, 900 rpm), thereby increasing the efficiency. The noise level can be reduced well.
[0023]
(Example 3)
As shown in FIG. 4, the bead 22 has a substantially triangular cross section. Other configurations are the same as those in the first or second embodiment.
[0024]
The operation in the above configuration will be described. When the washing and rinsing process is completed and the dehydration process is started, the washing / dehydrating tub 13 rotates, and the clothing starts to stick to the washing / dehydrating tub 13. This makes it difficult to improve the dewatering efficiency, and at the same time, the substantially triangular tip portion of the bead 22 has a washing plate effect, thereby improving the washing efficiency.
[0025]
Further, by setting the substantially triangular gradient of the bead 22 appropriately (for example, 5 ° to 10 °), it is possible to escape the wind due to the spin-drying and make it difficult to generate wind noise.
[0026]
Example 4
As shown in FIG. 5, the water flow holes 20 are provided in the gaps 22 a of the divided beads 22. Other configurations are the same as those in the first or second embodiment.
[0027]
The operation in the above configuration will be described. A row of bead gaps 22a on the inner peripheral wall surface of the washing and dewatering tub 13 serves as a passage through which water flows during dewatering rotation, and by increasing the water passage holes 20 on this passage, dewatering efficiency can be improved. It goes without saying that the dewatering efficiency is further improved by further increasing the water passage holes 20 on the row of the bead gaps 22a.
[0028]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0029]
(Example 5)
As shown in FIG. 6, the bead 22 is configured to have an inclination with respect to the rotation axis direction. Other configurations are the same as those in the first or second embodiment.
[0030]
The operation in the above configuration will be described. Similar to the generation of the wind flow 19 rising along the row of the bead gaps 22a on the inner peripheral wall surface of the washing and dewatering tank 13 during the spin-drying rotation, the wind flow 23 rising along the bead 22 is generated, and the dehydration Sometimes the rectification of wind noise increases. The washing, Paruse data 1 2 forward during rinsing stroke, rolling clothing by inversion along the bead 22, the cloth around is improved, it is possible to improve the cleaning efficiency and rinsing efficiency.
[0031]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0032]
(Example 6)
As shown in FIG. 7, the inner circumferential wall surface of the washing and dewatering tub 13 has a configuration in which beads 22 or rows of gaps 22 a of beads divided in the vertical direction face each other. Other configurations are the same as those in the first or second embodiment.
[0033]
The operation in the above configuration will be described. Washing, rinsing mode Paruse data 1 2 forward rotation at the time, but the garment by reversing rolls along the bead of the gap 22a, by those of opposing rows of bead 22 or a divided bead gap 22a exists, By combining the reverse rotation of the cloth, the twist of the garment can be reduced and the cloth can be prevented from curling.
[0034]
In this embodiment, the bead 22 has a substantially triangular cross section as in the third embodiment, but the cross section may not be substantially triangular.
[0035]
(Example 7)
As shown in FIG. 8, the inner circumferential wall surface of the washing and dewatering tub 13 has a plurality of long concave beads 24 substantially in the direction of the rotation axis, and the beads 24 are divided in the vertical direction, and this divided portion. A gap is formed between the two, and a gap adjacent in the horizontal direction is present at a position that rises in the direction opposite to the dewatering rotation of the washing and dewatering tub 13. Other configurations are the same as those of the first embodiment.
[0036]
The operation in the above configuration will be described. When the washing and rinsing process is completed and the dehydration process is started, the washing and dewatering tank 13 starts rotating. Eventually, when reaching the steady state of dehydration where the rotational speed is stable, a wind noise (eg, 480 Hz) with a certain frequency is generated. Here, an ascending wind flow is generated along a row of bead gaps on the outer peripheral wall surface of the washing and dewatering tub 13, so that small vortices (turbulent flow) generated by the water passage holes 20 and the beads 24 are wiped out and rectified while rising By doing so, it is possible to disperse wind noise with a constant frequency and reduce the overall noise value.
[0037]
(Example 8)
As shown in FIG. 9, the bead 25 has a substantially triangular cross section and a water passage hole 20 provided in the deepest part of the bead 25. Other configurations are the same as those of the seventh embodiment.
[0038]
The operation in the above configuration will be described. Due to the concave bead during dewatering rotation, there is always a gap between the clothes and the washing and dewatering tank 13, and the bead 25 has a substantially triangular shape, so that drainage can be efficiently performed along the gradient and the dewatering rate can be improved. .
[0039]
Further, by setting the substantially triangular gradient of the bead 25 appropriately (for example, 5 ° to 10 °), it is possible to release the wind due to the dehydrating rotation and to prevent the generation of wind noise.
[0040]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing and dewatering tub having the center axis of rotation in the vertical direction, and the outer tub located outside the washing and dewatering tub and receiving water during dehydration A pulsator rotatably disposed at the bottom of the washing / dehydrating tub, and a motor for driving the pulsator and the washing / dehydrating tub, the inner circumferential wall surface of the washing / dehydrating tub substantially in the direction of the rotation axis. projecting the long plurality of bi over de, and the bead is to divide in the vertical direction, a gap is formed between the upper and lower bead, a gap adjacent in the circumferential direction dewatering rotation direction of the washing and dewatering tank In order to form a row by the gaps inclined with respect to the rotation axis direction, it is arranged so that it rises as it advances in the opposite direction to the direction of the rotation axis. The wind noise that is generated Rectified by making a flow of air which rises along, also, by the bead length successively changed, it is possible to reduce the overall noise level by distributing wind noise constant frequency. In addition, the gap between the beads creates a gap when clothes are attached to the washing / dehydration tank during the dehydration process, and the inclination of the row due to the bead gap becomes a passage through which water flows during dehydration, thereby improving dewatering efficiency. In addition, by projecting a vertically long bead in the direction of the rotation axis and further dividing the bead in the vertical direction, the sectional modulus in the direction of the rotation axis is increased, so that it becomes a barrel type or a zipper type of a washing and dewatering tub. Can be prevented, and the rigidity can be improved.
[0041]
Further, according to the invention described in claim 2, since the column by inter gap is configured to a plurality of presence, it is possible to set the inclination angle and inclination number corresponding to the dewatering rotation number, more efficiently wind Sound can be reduced and dewatering efficiency can be improved.
[0042]
According to the invention described in claim 3, since the bead cross section has a substantially triangular shape, the clothes are less likely to stick to the washing and dewatering tank in the dehydration process, and the dewatering efficiency can be improved. The tip of the shape becomes a washing board effect, and washing efficiency can be improved. In addition, by setting a substantially triangular gradient appropriately, it is possible to release wind due to dehydration rotation and to prevent wind noise.
[0043]
Further, according to the invention described in claim 4, since the water passage holes are provided in the gaps between the beads by the vertical division, the dewatering efficiency can be improved by increasing the water passage holes on the passage through which water flows during dehydration. Can be improved .
[ Brief description of the drawings]
FIG. 1 is a cross-sectional view of a dehydrating and washing machine according to a first embodiment of the present invention. FIG. 2 is a development view of a washing and dewatering tank of the dehydrating and washing machine. Fig. 4 is a developed view of a washing and dewatering tub of a dehydrating washing machine. Fig. 4 is a cross-sectional view of a main part of a washing and dehydrating tub of a dehydrating washing machine according to a third embodiment of the present invention. Fig. 6 is an exploded view of the main part of the washing and dewatering tank of the dehydrating and washing machine of the example. Fig. 6 is an exploded view of the main part of the washing and dewatering tank of the dehydrating and washing machine of the fifth embodiment of the present invention. FIG. 8 is a developed view of the washing and dewatering tub of the dehydrating and washing machine of the sixth embodiment. FIG. 8 is a cross-sectional view of the main part of the washing and dewatering tub of the dehydrating and washing machine of the seventh embodiment of the present invention. FIG. 10 is a cross-sectional view of a main part of a washing and dewatering tank of a dehydrating and washing machine according to an eighth embodiment of the invention. FIG. 10 is a cross-sectional view of an example of a conventional dehydrating and washing machine. A cross-sectional view DESCRIPTION OF SYMBOLS
DESCRIPTION OF SYMBOLS 11 Outer tub 12 Pulsator 13 Washing and dewatering tub 16 Motor 18 Bead 18a Bead gap

Claims (4)

A washing / dehydrating tub having a central axis of rotation in the vertical direction, an outer tub located outside the washing / dehydrating tub for receiving water during dehydration, and a pulsator rotatably disposed at the bottom of the washing / dehydrating tub the a motor for driving the pulsator and the washing and dewatering tank, projecting a long plurality of bi over de in substantially axial direction on the inner peripheral wall surface of the washing and dewatering tank, and the bead is vertically in by dividing, by the gap formed between the upper and lower bead, the gap adjacent in the circumferential direction dewatering rotation direction of the washing and dewatering tank configured to present at a position increases as the process proceeds in the opposite direction A dehydrating combined washing machine configured to form a row with the gaps inclined with respect to the rotation axis direction . Dewatering the washing machine according to claim 1, wherein the column is configured to a plurality of presence by inter gap.   The dehydrating combined-use washing machine according to claim 1 or 2, wherein the bead section has a substantially triangular shape. The dehydrating combined washing machine according to any one of claims 1 to 3, wherein a water passage hole is provided in a gap between the beads by division in the vertical direction.

Images