JPS5927915Y2 - Washing machine lint filter device - Google Patents

Description

[Detailed description of the invention] This invention improves the lint collection performance of a lint filter that collects lint generated during washing and prevents it from being applied to clothes without sacrificing cleaning performance. It is an object of the present invention to provide a lint filter device that is easy to handle and has good durability.

Conventionally, a rotary blade is placed at the bottom of the washing tub, a filter chamber is provided above the side wall, and a circulating water flow is generated by a circulation channel that communicates from the filter chamber to the bottom of the rotor blade and a blade protruding from the back surface of the rotor blade. Some filter chambers have a structure that collects water using a filter made of nylon or other nets arranged perpendicular to this circulating water flow, but as a means of increasing the collection effect, it is recommended to increase the effective area of the filter. There is a way to strengthen the circulation waterway.

In the former case, it becomes necessary to increase the size of the filter chamber itself, and the size of the washing machine itself increases accordingly, resulting in the worst situation in which the size of the machine becomes large compared to the washing capacity.

On the other hand, in the latter case, the amount of water passing through the filter is increased per unit time (in other words, the water pressure is increased). When lint is collected on the entire surface of the filter and the filter becomes clogged, the maximum water pressure is applied and the durability of the net is reduced. There's a problem.

Furthermore, since the filter oscillates when the washing whirlpool reverses, it has the disadvantage that several percent (according to experiments, 3 to 6 percent) of the collected lint falls off.

The object of the present invention is to remove these and obtain a lint filter device that is easy to handle.

The following description will be given based on an embodiment shown in the drawings. Reference numeral 1 denotes an outer box of a washing machine, 2 a washing tub installed inside the outer box, and a rotary blade 3 arranged at the bottom.

A filter chamber 4 projecting outward is provided above the side wall of the washing tub 2, and an opening 4b is provided at the bottom 4a of the filter chamber 4, which is communicated with a circulation water channel 5 reaching the lower part of the rotary blade 3. ing.

The filter chamber 4 and the washing tub 2 are partitioned through a cover 6 so as to communicate with each other.

This cover 6 has a plurality of small holes (L6a) on the front surface, and has an opening 8b on the top surface through which a filter 8 (to be described later) can be accessed, and is attached flush with the side wall of the washing tub 2. It is designed so that it does not interfere with the movement of the cloth during washing.

It is preferable that the cover 6 has a height dimension such that the upper surface thereof is approximately at the same level as the upper end of the washing tub 2, that is, at a position higher than the washing water level.

Reference numeral 8 denotes a synthetic resin filter disposed in the filter chamber 4 so as to close the opening 4b of the circulation waterway 5. As shown in FIG.
It has a cylindrical outer wall 8d large enough to surround the outer wall 8d, and a bag-shaped inner wall 8a which is formed in a U-shape at the upper end of the outer wall 8d and is connected to the inner wall 8a with an appropriate gap t2. inner wall 8
A plurality of slits 8C are provided on the entire circumference of the inner wall 8a and on the bottom surface 8b, and the bottom surface 8b of the inner wall 8a is provided with a cylindrical outer wall 8d.
The bottom is shallow by 41 minutes so that an appropriate gap t1 is formed when the lower end surface of the filter chamber 4 is brought into contact with the bottom 4a of the filter chamber 4.

Reference numeral 9 denotes a synthetic resin coupling shaft which is removably fitted to the filter 8. The upper end of this joint shaft is integrally formed with a flange 9a formed to close the opening 6b of the cover 6. includes a knob portion 9b for holding and removing the filter 8 with fingers when cleaning it, and an opening portion 6b of the cover 6.
It is provided with a retaining portion 9C that elastically engages with the edge.

Next, installation and removal will be explained.

When installing, first grasp the knob 9b of the flange 9a with your fingers, insert the filter 8 into the filter chamber 4 through the opening 6b of the cover 6, and make sure that the engaging part 9C of the flange 9a is in the opening 6b. Press down until it elastically engages the rim.

As a result, the filter 8 is mounted with the cylindrical outer wall 8d in contact with the bottom 4a of the filter chamber 4.

When the filter 8 is taken out for cleaning, the filter 8 is removed from the filter chamber 4 by grasping the knob 9b and pulling upward to release the engagement by the engaging part 9C.

According to the lint filter device having such a configuration, the washing vortex generated by the rotation of the rotor blades passes directly through the small hole 6a of the cover and the filter sleeve 8C by the action of the pump. , a circulating water flow that uses the circulating waterway 5 as a route is generated.

A space is formed between the inner wall 8a and bottom 8b of the filter 8, and the outer wall 8b and the filter chamber bottom 4a, and the circulating water flow is carried out through the slit 8a at the bottom of the filter and the slit 8C at the inner wall.
Since it passes through the filter 8, it is collected on the entire inner surface of the filter 8.

Therefore, the depth H2 of the filter can be increased by making the filter chamber deeper than the specified water level (Ht) at the corner part 10 of the washing tub, and the collection area can be increased without increasing the flat area. Not only can the collection effect be improved without increasing the size of the washing machine body, but the filter itself is made of synthetic resin, so it will not be damaged by water pressure even if the circulating water flow is designed to be strong. .

Furthermore, even when the washing whirlpool reverses, the filter itself does not swing, and the collected lint does not come off, contributing to an improvement in the collection effect.

The collected lint can be easily pulled out by holding the knob with your fingers and pulling it out as the engaging piece undergoes elastic deformation.Furthermore, the filter and connecting shaft are also removable, making it easy to remove the filter. cleaning is possible.

As explained above, according to the present invention, the collection effect can be improved by eliminating the separation of the collected lint, and in the present invention, the filter has a flange portion that closes the opening provided on the top surface of the cover. Since the connecting shaft is connected, the filter can be installed and the opening can be closed at the same time with just one touch.
Furthermore, when cleaning the filter during washing, conventionally one had to put one's hand into the washing water to remove the filter, but in the present invention, the connecting shaft connected to the filter can be removed from the flange without removing the filter directly. Since the filter can be taken out by pulling it through the filter, it is possible to clean the filter without getting your hands dirty with washing water even during washing.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an enlarged view of the main parts. 8 is a filter.

Claims (1)

[Scope of utility model registration request] A washing tub with rotating blades arranged at the bottom, a filter chamber provided above the side wall of the washing tub in communication with the washing tub via a cover, and a circulation waterway communicating from the filter chamber to the lower part of the rotating blade. The washing machine includes a cylindrical outer wall that surrounds the suction side opening of the circulation waterway, and a bag-shaped inner wall that is connected in a U-shape at the upper end of this outer wall and has a slit around the periphery. A lint filter device for a washing machine, characterized in that a synthetic resin filter is discharged through a provided opening, and a connecting shaft having a flange for opening the opening of the cover is connected to the filter.