JPH06319890A - Water flow generaing device for washing machine - Google Patents

Abstract

PURPOSE:To prevent a flow route inside a cylinder from being narrowed due to the formation of a bearing section when the washing water is taken in a mixing blade and is used as a pump and improve the efficiency of collecting the lint. CONSTITUTION:In the water flow generating device for the washing machine which draws water in the washing tub inside of a mixing blade 5 by rotating it and eject the water from the head of the mixing blade 5, cylinder body 12 with blade 14 radioactively arranged around the mixing blade 5 and with a cone shaped section 15 formed and an angular mixing blade cover 13 with an impeller 16 placed around the peripheral surface at intervals in the cone shaped section 15 of the cylinder 12. The space between the section 15 of the cylinder 12 and the cover 13 is formed on a route 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water flow inducing device for a washing machine.

[0002]

2. Description of the Related Art As a water flow inducing device for a washing machine, a stirring blade (agitator) for rotating an impeller is known, and the water flow induced by the stirring blade is used to separate a water flow for washing. It is considered that a water stream is created and lint (lint waste) is collected by this water stream.

FIG. 4 shows an example of such a washing machine.
The outer tank 3 is provided with a vibration-proof spring and a vibration-proof means 2 including a suspension rod.
The washing / dehydrating tub 4 is disposed in the outer tub 3, and the stirring blade 5 is provided in the washing / dehydrating tub 4. Then, a motor 6 is installed below the outer tub 3, the rotating shaft of the motor 6 is connected to a mechanism portion 9 via a V belt 7 and a pulley 8, and a drive shaft 10 provided in the mechanism portion 9 is provided with a stirring blade. Connect to 5. In the figure, 11 is a lint filter provided on the top of the stirring blade 5.

In order to perform washing, the motor 6 is rotated and this rotational force is transmitted to the drive shaft 10 of the mechanism section 9 via the V belt 7 and the pulley 8, and the rotation of the drive shaft 10 is further stirred. 5 is transmitted and rotated to wash and dehydrate tank 4
A water flow is generated inside, and the water flow removes dirt adhering to the laundry.

By the way, it has been considered that lint that comes out of the laundry during washing is collected by a lint filter 11 provided on the top of the stirring blade 5, and as a structure of the stirring blade 5 for that purpose, for example, as shown in FIG. There is something to show.

In this structure, a partition wall 22 is provided in a spiral shape inside a rotary disk 21, and a spiral flow path toward the center is formed between the partition walls, and a lower end is provided above the rotary disk 21 at the center of the spiral. A cylindrical body 23 is erected so as to communicate with each other, vanes 24 are radially arranged on the peripheral surface of the cylindrical body 23, and water intake holes 25 in each spiral flow path are formed at the bottom of the rotary disk 21. Although not shown in the drawings, the bearing portion of the drive shaft of the mechanism portion 9 is formed into the cylindrical body 23.
Is formed on the bottom of the.

When the stirring blade 5 rotates during the washing operation, the rotary disc 21 acts as a centripetal pump, which is one of the unsteady pumps, and the rotary disc 21 draws the wash water in the washing / dehydrating tub 4 at the bottom. It is taken into the flow path from the hole 25 and pushed up inside the cylindrical body 23. The washing water thus taken into the cylindrical body 23 passes through the lint filter 11 at the top and returns to the washing / dehydrating tank 4. At this time, the lint contained in the wash water is collected by the lint filter 11.

[0008]

When the bearing portion, into which the drive shaft of the mechanism portion is inserted, is formed directly on the cylindrical body, ribs for reinforcement are required, and the flow passage becomes narrower by that amount, and the lint filter is removed. And the lint collection efficiency decreases.

An object of the present invention is to eliminate the disadvantages of the conventional example, prevent the flow passage in the cylindrical body from being narrowed due to the formation of the bearing portion, and improve the lint collection efficiency. An object is to provide an evoking device.

[0010]

Means for Solving the Problems In order to achieve the above object, the present invention provides a water flow inducing device for a washing machine, which pumps water in a washing tub into the stirring blade by rotating the stirring blade and discharges the water from the head of the stirring blade. In the above, a cylindrical body in which the stirring blades are arranged radially around the blade and the lower portion is formed into a skirt-expanded portion, and an impeller is provided on the peripheral surface in combination with a space in the skirt-expanded portion of the cylinder. And a mountain-shaped stirring blade cover arranged to form a gap between the flared portion of the cylindrical body and the mountain-shaped stirring blade cover, and the stirring blade cover is the top of the mountain-shaped portion. The gist of the present invention is to have a bearing portion into which the rotary drive shaft is inserted.

[0011]

According to the first aspect of the present invention, the flow path is formed in a mountain shape in the gap between the lower skirt-like portion of the cylindrical body and the mountain-shaped stirring blade cover, and the impeller is disposed there. Therefore, the wash water that has flowed into this flow path is efficiently pumped up to the upper part of the cylindrical body by the impeller.

According to the second aspect of the present invention, in addition to the above-mentioned action, the bearing portion into which the rotary drive shaft for transmitting the rotational force from the motor is inserted is provided on the side of the stirring blade cover, and thus on the side of the cylindrical body. Reinforcement is not necessary as compared with the case of providing, and the flow path can be formed wider by that much, and the flow rate to the lint filter is increased and the lint collection efficiency is increased.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional front view showing an embodiment of a water flow inducing apparatus of the present invention, FIG. 2 is a vertical sectional front view of the same as above, and FIG. The washing and dehydrating tub 4 of the fully-automatic one-tub type washing machine described above in No. 4 or in the case of the two-tank type washing machine, it is arranged in the washing tub and is a centripetal pump which is one of the unsteady pumps. Is used.

The stirring blade 5 of the present invention comprises a cylindrical body 12 and a stirring blade cover 13 which is assembled with the lower portion of the cylindrical body 12, and the cylindrical body 12 has blades 14 arranged radially around the lower portion. It was formed in the hem widened portion 15, and the water intake hole 18 was formed in the hem widened portion 15.

The stirring blade cover 13 is formed in a mountain shape so as to be combined with the inside of the flared portion 15 of the cylindrical body 12, and an impeller 16 is arranged on the peripheral surface. The inner shape of the widened portion 15 is formed so as to be substantially the same. Also,
A bearing portion 19 into which the drive shaft 10 for transmitting the rotational force from the motor is inserted is formed on the top of the stirring blade cover 13.

When the mountain-shaped stirring blade cover 13 is incorporated in the skirt-shaped widened portion 15 of the cylindrical body 12, a gap serving as a flow passage 17 is formed between the both, and the impeller 16 is in the flow passage 17. Will be installed in.

Next, the operation will be described. When the motor 6 is rotated during the washing operation, this rotational force is applied to the drive shaft 10,
It is transmitted to the stirring blade 5 via the bearing portion 19 and is rotated. As a result, the wash water in the washing / dehydrating tank 4 that has entered the flow passage 17 from the water intake hole 18 is pushed up in the flow passage 17 by the impeller 16 provided here, and further pushed up in the cylindrical body 12. It reaches the lint filter 11 on the upper side, and discharges it into the washing / dehydrating tank 4 from here. Then, when passing through the lint filter 11, lint contained in the wash water is collected.

In this case, the bearing 19 is attached to the stirring blade cover 13
Since it is formed on the side of the cylindrical body 12, it is not necessary to provide ribs for reinforcement as compared with the case of forming on the side of the cylindrical body 12, and the flow path 17 can be formed wider by that amount.
The flow rate supplied to unit 1 increases. Further, since the flow passage 17 is formed in a mountain shape and the impeller 16 is arranged here, the washing water can be pumped well.

Further, a washing water intake hole 18 to the flow path 17 is provided.
Is formed on the upper portion of the skirt-shaped widened portion 15 of the cylindrical body 12, the laundry is not drawn into the bottom portion of the stirring blade 5 at the time of water intake.

[0020]

As described above, in the water flow inducing device of the washing machine of the present invention, when the washing water is taken into the stirring blade and passed through the lint filter to the upper portion and is jetted from here, the flow passage in the stirring blade is provided. It is possible to secure a large amount of water and to smooth the flow of the washing water flowing through this flow path, so that the flow rate increases, the amount of lint collected increases, and lint recovery can be performed efficiently.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a water flow inducing device for a washing machine according to the present invention.

FIG. 2 is a vertical sectional front view showing an embodiment of the water flow inducing apparatus for a washing machine according to the present invention in an exploded state.

FIG. 3 is a cross-sectional plan view showing an embodiment of a water flow inducing device for a washing machine according to the present invention.

FIG. 4 is a vertical sectional side view of a washing machine in which the water flow inducing device for a washing machine of the present invention is implemented.

FIG. 5 is a perspective view showing a conventional example of a water flow inducing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer box 2 ... Anti-vibration means 3 ... Outer tank 4 ... Washing / dehydrating tank 5 ... Stirring blade 6 ... Motor 7 ... V belt 8 ... Pulley 9 ... Mechanism part 10 ... Drive shaft 11 ... Lint filter 12 ... Cylindrical body 13 ... Stirring blade cover 14 ... Blade 15 ... Spreading portion 16 ... Impeller 17 ... Flow path 18 ... Water intake hole 19 ... Bearing 21 ... Rotating disk 22 ... Partition wall 23 ... Cylindrical body 24 ... Blade 25 ... Water intake hole

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[Procedure amendment]

[Submission date] December 13, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Water flow inducing device for a washing machine

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water flow inducing device for a washing machine.

[0002]

2. Description of the Related Art As a water flow inducing device for a washing machine, a stirring blade (agitator) for rotating an impeller is known, and the water flow induced by the stirring blade is used to separate a water flow for washing. It is considered that a water stream is created and lint (lint waste) is collected by this water stream.

FIG. 4 shows an example of such a washing machine.
The outer tank 3 is provided with a vibration-proof spring and a vibration-proof means 2 including a suspension rod.
The washing / dehydrating tub 4 is disposed in the outer tub 3, and the stirring blade 5 is provided in the washing / dehydrating tub 4. Then, a motor 6 is installed below the outer tub 3, the rotating shaft of the motor 6 is connected to a mechanism portion 9 via a V belt 7 and a pulley 8, and a drive shaft 10 provided in the mechanism portion 9 is provided with a stirring blade. Connect to 5. In the figure, 11 is a lint filter provided on the top of the stirring blade 5.

In order to perform washing, the motor 6 is rotated and this rotational force is transmitted to the drive shaft 10 of the mechanism section 9 via the V belt 7 and the pulley 8, and the rotation of the drive shaft 10 is further stirred. 5 is transmitted and rotated to wash and dehydrate tank 4
A water flow is generated inside, and the water flow removes dirt adhering to the laundry.

By the way, it has been considered that lint that comes out of the laundry during washing is collected by a lint filter 11 provided on the top of the stirring blade 5, and as a structure of the stirring blade 5 for that purpose, for example, as shown in FIG. There is something to show.

In this structure, a partition wall 22 is provided in a spiral shape inside a rotary disk 21, and a spiral flow path toward the center is formed between the partition walls, and a lower end is provided above the rotary disk 21 at the center of the spiral. A cylindrical body 23 is erected so as to communicate with each other, vanes 24 are radially arranged on the peripheral surface of the cylindrical body 23, and water intake holes 25 in each spiral flow path are formed at the bottom of the rotary disk 21. Although not shown in the drawings, the bearing portion of the drive shaft of the mechanism portion 9 is formed into the cylindrical body 23.
Is formed on the bottom of the.

When the stirring blade 5 rotates during the washing operation, the rotary disc 21 acts as a centripetal pump, which is one of the unsteady pumps, and the rotary disc 21 draws the wash water in the washing / dehydrating tub 4 at the bottom. It is taken into the flow path from the hole 25 and pushed up inside the cylindrical body 23. The washing water thus taken into the cylindrical body 23 passes through the lint filter 11 at the top and returns to the washing / dehydrating tank 4. At this time, the lint contained in the wash water is collected by the lint filter 11.

[0008]

When the bearing portion, into which the drive shaft of the mechanism portion is inserted, is formed directly on the cylindrical body, ribs for reinforcement are required, and the flow passage becomes narrower by that amount, and the lint filter is removed. And the lint collection efficiency decreases.

An object of the present invention is to eliminate the disadvantages of the conventional example, prevent the flow passage in the cylindrical body from being narrowed due to the formation of the bearing portion, and improve the lint collection efficiency. An object is to provide an evoking device.

[0010]

Means for Solving the Problems In order to achieve the above object, the present invention provides a water flow inducing device for a washing machine, which pumps water in a washing tub into the stirring blade by rotating the stirring blade and discharges the water from the head of the stirring blade. In the above, a cylindrical body in which the stirring blades are radially arranged around the blade and the lower portion is formed into a skirt-expanded portion, and an impeller is attached to the peripheral surface in combination with an interval in the skirt-expanded portion of the cylinder. And a mountain-shaped stirring blade cover arranged to form a gap between the flared portion of the cylindrical body and the mountain-shaped stirring blade cover, and the stirring blade cover is the top of the mountain-shaped portion. The gist of the present invention is to have a bearing part into which the rotary drive shaft is inserted, and for the stirring blade cover, the upper end part of the impeller is fixed around the bearing part.

[0011]

According to the first aspect of the present invention, the flow path is formed in a mountain shape in the gap between the lower skirt-like portion of the cylindrical body and the mountain-shaped stirring blade cover, and the impeller is disposed there. Therefore, the wash water that has flowed into this flow path is efficiently pumped up to the upper part of the cylindrical body by the impeller.

According to the second aspect of the present invention, in addition to the above-mentioned action, the bearing portion into which the rotary drive shaft for transmitting the rotational force from the motor is inserted is provided on the side of the stirring blade cover, and thus on the side of the cylindrical body. Reinforcement is not necessary as compared with the case of providing, and the flow path can be formed wider by that much, and the flow rate to the lint filter is increased and the lint collection efficiency is increased.

According to the third aspect of the present invention, in addition to the above action, the upper end portion of the impeller is fixed around the bearing portion, so that the rotational force from the motor is surely and efficiently transmitted to the impeller. And further transmitted to the stirring blade.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional front view showing an embodiment of a water flow inducing apparatus of the present invention, FIG. 2 is a vertical sectional front view of the same as above, and FIG. The washing and dehydrating tub 4 of the fully-automatic one-tub type washing machine described above in No. 4 or in the case of the two-tank type washing machine, it is arranged in the washing tub and is a centripetal pump which is one of the unsteady pumps. Is used.

The stirring blade 5 of the present invention comprises a cylindrical body 12 and a stirring blade cover 13 which is assembled with the lower portion of the cylindrical body 12, and the cylindrical body 12 has blades 14 arranged radially around the lower portion. It was formed in the hem widened portion 15, and the water intake hole 18 was formed in the hem widened portion 15.

The stirring blade cover 13 is formed in a mountain shape so as to be combined with the inside of the flared portion 15 of the cylindrical body 12, and an impeller 16 is arranged on the peripheral surface. The inner shape of the widened portion 15 is formed so as to be substantially the same. Also,
A bearing portion 19 into which the drive shaft 10 for transmitting the rotational force from the motor is inserted is formed on the top of the stirring blade cover 13. In this case, the upper end of the impeller 16 is fixed around the bearing 19.

When the mountain-shaped agitating blade cover 13 is installed inside the flared portion 15 of the cylindrical body 12, a gap to be the flow passage 17 is formed between the two, and the impeller 16 is in the flow passage 17. Will be installed in.

Next, the operation will be described. If the motor 6 is rotated during the washing operation, this rotational force is applied to the drive shaft 10,
It is transmitted to the stirring blade 5 via the bearing portion 19 and is rotated. As a result, the wash water in the washing / dehydrating tank 4 that has entered the flow passage 17 from the water intake hole 18 is pushed up in the flow passage 17 by the impeller 16 provided here, and further pushed up in the cylindrical body 12. It reaches the lint filter 11 on the upper side, and discharges it into the washing / dehydrating tank 4 from here. Then, when passing through the lint filter 11, lint contained in the wash water is collected.

In this case, since the upper end portion of the impeller 16 is fixed around the bearing portion 19, the rotational force of the motor 6 is reliably and efficiently transmitted to the entire stirring blade 5 via the impeller 16. .

In this case, the bearing 19 is attached to the stirring blade cover 13
Since it is formed on the side of the cylindrical body 12, it is not necessary to provide ribs for reinforcement as compared with the case of forming on the side of the cylindrical body 12, and the flow path 17 can be formed wider by that amount.
The flow rate supplied to unit 1 increases. Further, since the flow passage 17 is formed in a mountain shape and the impeller 16 is arranged here, the washing water can be pumped well.

Further, the intake hole 18 for washing water to the flow path 17 is provided.
Is formed on the upper portion of the skirt-shaped widened portion 15 of the cylindrical body 12, the laundry is not drawn into the bottom portion of the stirring blade 5 at the time of water intake.

[0022]

As described above, in the water flow inducing device of the washing machine of the present invention, when the washing water is taken into the stirring blade and passed through the lint filter to the upper portion and is jetted from here, the flow passage in the stirring blade is provided. It is possible to secure a large amount of water and to smooth the flow of the washing water flowing through this flow path, so that the flow rate increases, the amount of lint collected increases, and lint recovery can be performed efficiently.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a water flow inducing device for a washing machine according to the present invention.

FIG. 2 is a vertical sectional front view showing an embodiment of the water flow inducing apparatus for a washing machine according to the present invention in an exploded state.

FIG. 3 is a cross-sectional plan view showing an embodiment of a water flow inducing device for a washing machine according to the present invention.

FIG. 4 is a vertical sectional side view of a washing machine in which the water flow inducing device for a washing machine of the present invention is implemented.

FIG. 5 is a perspective view showing a conventional example of a water flow inducing device.

[Explanation of Codes] 1 ... Outer box 2 ... Anti-vibration means 3 ... Outer tub 4 ... Washing / dewatering tub 5 ... Stirring blades 6 ... Motor 7 ... V belt 8 ... Pulley 9 ... Mechanism part 10 ... Drive shaft 11 ... Lint filter 12 ... Cylindrical body 13 ... Stirring blade cover 14 ... Blade 15 ... Hem spreading part 16 ... Impeller 17 ... Flow path 18 ... Water intake hole 19 ... Bearing part 21 ... Rotating disk 22 ... Partition wall 23 ... Cylindrical body 24 ... Blade 25 ... Water intake Hole

Front page continuation (72) Nobuyoshi Sonoda 1-1-1 Yamate, Funabashi, Chiba Prefecture Nihon Kenketsu Funabashi Manufacturing Co., Ltd. (72) Yoshiro Nagasu 1-1-1 Yamate, Funabashi, Chiba Japan (72) Inventor Masanobu Yatsu 1-1-1 Yamate, Funabashi City, Chiba Nippon Kentai Co., Ltd. Funabashi Works

Claims (2)

[Claims] 1. A water flow inducing device for a washing machine in which water in a washing tub is pumped into the agitating blade by the rotation of the agitating blade and discharged from the head of the agitating blade, and the agitating blade is radially arranged around the agitating blade. Then, the lower part is formed into a skirt-expanded portion, and is composed of a mountain-shaped stirring blade cover in which an impeller is arranged on the peripheral surface in combination with an interval in the skirt-expanded portion of the cylinder, A water flow inducing device for a washing machine, characterized in that a gap between the flared portion of the cylindrical body and the mountain-shaped stirring blade cover is formed in the flow path. 2. The water flow inducing device for a washing machine according to claim 1, wherein the stirring blade cover has a bearing portion into which the rotary drive shaft is inserted, at the top of the mountain portion.