JPH0221897A - Waste thread removing filter in washing machine - Google Patents

Abstract

PURPOSE:To greatly reduce the possibility of sticking of waste thread onto a garment after washing at a low cost by forming a lower bent part with a cylindrical member which can be vertically split into a two parts as hinge parts, and by providing a counterflow preventing means in the opening thereof. CONSTITUTION:A waste thread removing filter 16 composed of halves which can be opened at its mid part of the filter so as to facilitate the cleaning thereof is disposed in a hollow cylindrical body 4 projected from the center part of an agitating blade 2. A ring 19 and a cutout 20 are provided in a net frame in the filter 16, and a check valve 21 is fitted in the cutout 20. The check valve 21 is pushed by washing water introduced through the hollow cylindrical body 4 during rotation of the agitating blade 2, so as to open its opening 24, and waste thread is trapped by the filter 16. Further, due to the rising of the level of water in the hollow cylindrical body 4 upon stop of the agitating blade 2, that is, due to returning phenomenon, the check valve 21 is also pushed back so as to close the opening 24, thereby it is possible to waste thread from floating up again.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method for collecting lint, cotton waste, etc. generated during washing and rinsing, in addition to the conventional lint filter that collects lint and cotton waste. By improving.

This prevents lint from re-adhering to clothing.

[Conventional technology]

The conventional lint removing filter is disclosed in Japanese Patent Application Laid-Open No. 58-2124.
As described in No. 90, a back check is used to collect lint, cotton waste, etc. generated during washing and rinsing, and to prevent lint and other waste from resurfacing when the water flow stops when the washing machine is stopped. Some have a hinge configuration with a valve. Since the lint filter cannot be expanded, it is difficult to clean the inside of the filter if the check valve is located at the opening. Furthermore, since the rotation structure of the check valve is a hinge mechanism, the hinge opening force varies widely due to temperature differences, wall thickness fluctuations during molding, etc., and the backflow prevention function does not work properly. The cost is high because it uses an elastic material.

Furthermore, there is also a filter that is provided with a lint collecting filter in the cylindrical part of the second part of the stirring blade and collects lint by utilizing the pump action generated when the stirring blade rotates. Since no check valve is provided, the collection rate is poor due to re-dispersion of the lint.

[Problem to be solved by the invention]

The above conventional technology uses a check valve to collect lint, cotton waste, etc. generated during washing and rinsing, and to prevent the lint from re-floating when the water flow stops when the washing machine stops. It has a hinge configuration with a hole in the opening. Since the filter cannot be expanded, cleaning the inside of the filter will be difficult if a check valve is installed at the opening.

Also, because the rotation structure of the check valve is a hinge mechanism, there is a difference in temperature.

Due to differences in rotational force due to changes in wall thickness during molding, the backflow prevention function is not effective and the collection rate of lint, etc. decreases.

In this way, installing a check valve at the opening of the filter has the disadvantage that it gets in the way and is difficult to remove.
Since the lint collection is not sufficient, lint and the like inevitably adhere to the clothes, which makes the clothes look bad after washing and furthermore makes the customer feel uncomfortable.

As stated above, the purpose of the present invention is to provide a highly reliable lint removal filter that compensates for the inadequacies of the conventional technology and improves the collection rate by preventing lint from becoming dispersed again. The purpose is to provide a washing machine equipped with

[Means to solve the problem]

The lint removing filter is characterized by having a bent portion at the bottom, which is formed by a substantially cylindrical body that can be vertically divided into two parts as a hinge, and a backflow prevention means is provided at the opening of the cylindrical body. [Function] By configuring the above-mentioned backflow prevention mechanism, the check valve attached to the opening is pushed by the water flow due to the suction generated when the stirring blade rotates, and the opening opens. , lint, etc. are collected.

In addition, when the water surface phenomenon in the hollow cylinder occurs when the stirring blade is stopped, that is, when backflow occurs, the check valve is returned to the water flow and closes the opening, thereby preventing the dispersion of lint. .

Furthermore, since the filter can be opened in half, cleaning the inside of the filter is easy even if it has a check valve.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be explained below with reference to the drawings.

In FIG. 1, a stirring blade 2 is shaft-supported above a reducer 3 at the bottom of a washing tank 1, and a hollow cylindrical body 4 is located at the center of the stirring blade 2.
is provided to protrude upward, a driven pulley 5 is similarly supported by a shaft below the reducer 3, and a drive pulley 8 is supported by a shaft above a washing motor 7 which is supported on a main body base 6. They are connected by a belt 9.

On the other hand, in a water receiving tank 10 arranged in parallel with the washing tank 1, a dehydrating tank 11 is supported by a shaft of a dehydrating motor 13 supported on the main body base 6 via a bellows 12 for a water seal. A control panel 15 is provided above the outer frame 14 that supports these components, and is configured to perform washing and dewatering operations by controlling the power supply to the washing motor 7 and the dehydrating motor 13, respectively.

In FIG. 2, a hollow cylindrical body 4 protruding from the center of the stirring blade 2
As shown in FIG. 3, the filter 16 can be opened in half vertically from the center to facilitate cleaning, and can be closed and fixed using a protrusion 25 and a fixing hole 26. A waste refilter 16 is provided. When the stirring blade 2 rotates, the stirring rib 17 provided at the bottom of the stirring blade 2 rotates and sucks up water, so water for washing is sucked from the hollow cylindrical body 4 provided at the top of the stirring blade 2. action will take place. The washing water containing lint sucked in from the hollow cylindrical body 4 passes through the lint removal filter 16, and the washing water is discharged as it is by the stirring rib 17, so the lint etc. are captured by the lint removal filter 16. collected. However, when the stirring blades 2 stop rotating, the pumping action performed by the stirring ribs 17 stops, so the washing water in the hollow cylinder 4 floats to the water surface and is collected in the lint filter 16. The lint, etc. that has been removed will resurface. The method considered to prevent this lint from resurfacing is shown in Fig. 4.

In FIG. 4, a ring 19 and a notch 20 are provided in the net frame 18 of the conventional lint removing filter 16 which is opened vertically in half from the center to facilitate cleaning of the filter shown in FIG. , notch 20 and check valve 21
The notch 20 is provided with a large clearance in the vertical direction.
It has a configuration in which a check valve 21 shown in the figure is attached. When the filter is unfolded as shown in Figure 3, check valve 2
1 remains attached to one side. However, the diameter of the check valve 21 shall be smaller than the opening area of the lint removal filter 16, and the thickness shall be as thin as 0.5 mm, so that it can be attached to the filter 16 immediately by inserting it. The check valve 21 has a conical shape with its apex at its tip. With this configuration, as shown in FIG. 4, the check valve 21 is forced downward to open the opening 24 by the washing water sucked in from the hollow cylindrical body 4 when the stirring blade rotates twice. The lint and the like are collected by the lint collecting filter 16. In addition, due to the water surface floating in the hollow cylinder 4 that occurs when the rotation of the stirring blade 2 is stopped, that is, the return phenomenon, the check valve 21 is also pushed back upwards, closing the opening 24, and lint, etc. resurfacing can be prevented. In this way, the collection rate of lint and other lint in the lint removal filter 16 can be improved at a low cost, and the adhesion of lint to clothes after washing can be significantly reduced. Since the check valve 21 is attached to the lint removal filter 16 that can be divided into two in the direction, it does not get in the way even if the check valve 21 is attached to the opening of the filter, making cleaning the inside of the filter 16 very easy. is the net frame 1 of the filter 16 provided in the blank space of the mold.
8 and can be molded at the same time.

Other embodiments are shown in FIGS. 6 to 9.

The difference from FIGS. 4 and 5 is that the check valve 21 has the same shape and thinner thickness as the opening 24 of the lint filter 16, and is recessed in the center, as shown in the figure. This is because a separate check valve 23 was installed. Furthermore, the hollow shape is cut into 5 to 8 equal parts from the center, and the material is soft like rubber. By attaching such a check valve 23 to the opening 24, the stirring blade 2
During rotation, the check valve 23 expands downward from the center to open the opening 24, as shown in FIG. 6, and lint and the like are collected in the lint filter 16. When the water surface in the hollow cylindrical body 4 rises to the surface, that is, returns, which occurs when the stirring blade 2 stops rotating, the check valve 23 returns to its original shape so as to close the opening 24, and the water is once collected. Prevents scattering of lint, etc. Similarly, since this is attached to the opening 24 of the lint removing filter 16 shown in FIG. 3, it does not get in the way and the inside of the filter can be easily cleaned.

In this way, this configuration can also provide the same effects as those shown in FIGS. 4 and 5.

〔Effect of the invention〕

As described above, according to the present invention, when rinsing is performed in a washing tank or a dehydration tank, the collection of lint, cotton waste, etc. by the lint filter can be improved at a low cost, and the washing It is possible to significantly reduce the adhesion of lint to clothing after finishing.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a washing machine showing an embodiment of the present invention;
Figure 2 is a longitudinal sectional view of the stirring blade and hollow cylinder in Figure 1,
The figure is an enlarged view of a filter that can be opened in half vertically from the center, Figure 4 is a partial sectional view of Figure 2A, Figure 5 is an enlarged view of the check valve 21, and Figure 6 is a partial sectional view. , FIG. 7, FIG. 8, and FIG. 9 are enlarged views of the check valve 23. 16... Lint removal filter 18... Net frame, 19... Ring, 20... Square hole, 21...
・Check valve, Fig. 3 2A

Claims (1)

[Claims] 1. The stirring blade has a hollow cylindrical body rising upward from the center of the bottom, and a removable lint filter is provided inside the hollow cylinder, and the pumping action generated by the rotation of the stirring blade is In the lint collecting filter of a washing machine, the lint collecting filter has a bent part at the bottom, and this bent part is used as a hinge part to form an almost cylindrical shape that can be vertically divided into two parts. A lint removal filter for a washing machine, characterized in that it is formed with a cylindrical body, and a backflow prevention means is provided at the opening of the cylindrical body.