JPH05261042A - Filter for vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide the filter for a vacuum cleaner, which can prevent a fact that even if part gets wet, its wetness spreads to the whole filter, gas passability of the whole filter is deteriorated, and the suction performance of the vacuum cleaner for using its filter is deteriorated. CONSTITUTION:The filter 2 is constituted by constituting a base material of a material having gas passability and a fine mesh such as nonwoven cloth, etc., made of polyester, fixing a tape material 3 having flexibility such as soft vinyl chloride and also having a low melting point to the base material so as to divide the whole by heating and pressurization, and also, the tape material 3 is infiltrated into the base material by heating and pressurization and filled between fibers of the base material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter used in an electric vacuum cleaner which can also absorb water.

[0002]

2. Description of the Related Art Conventionally, filters used in vacuum cleaners that can also absorb water are made of a non-woven fabric made of polyester or the like and are made of fine mesh material to remove dust in the intake air sucked by the vacuum cleaner. Only the air after filtering and removing dust was taken in by the motor fan.

[0003]

Such a conventional filter is an aggregate of fine fibers, and when a part thereof is immersed in water, the water permeates the entire filter due to a capillary phenomenon. Therefore, when the water absorbed during water absorption wets even a part of the filter, the water easily permeates into the entire filter due to the capillary phenomenon, and the entire filter is immediately wet. When the filter gets wet with water, the water is retained between the fine fibers constituting the filter, and the gap between the fibers is filled with water. Therefore, there is a problem that the ventilation pressure loss of the filter is extremely increased and the intake performance is significantly reduced. The present invention is to solve the above problems, and an object thereof is to provide a filter for an electric vacuum cleaner which is excellent in usability and productivity, in which the wetness does not easily spread to the whole even when a part thereof gets wet. To do.

[0004]

In order to achieve the above-mentioned object, a filter for a vacuum cleaner of the present invention has flexibility such as soft vinyl chloride so as to divide the filter into a plurality of pieces, and a base material. Heating tape material with lower melting point,
The tape material is fixed to the filter by pressurization, and the tape material is partially melted by heating and pressurizing to fill the gaps between the fibers of the filter base material to fill the gaps.

[0005]

According to the present invention, with the above-described structure, the water sucked into the dust box wets a part of the filter, and even if the water permeates and diffuses in the filter due to the capillary phenomenon, the water is heated and pressed by the tape material. When reaching the part filled with the base material, the gap between the thin fibers of the filter base material is filled and filled with a part of the tape material melted by heating and pressurizing at that part. It cannot penetrate or diffuse further, so that the filter does not spread further. Therefore, the part of the filter that does not get wet can be surely secured, and therefore good air permeability can be secured, so that the suction performance of the electric vacuum cleaner using this filter can be reliably maintained. Further, fixing and filling of the tape material to the filter are performed by pressing the tape material with a heated roller, which can be continuously and easily and reliably performed. Further, since the tape material used has a melting point lower than that of the base material, even when the tape material is partially melted to fill the filter, the confidence of the filter is not melted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In the figure, reference numeral 1 is a dust box for storing dust and water therein, and the dust box 1 is made of resin and a filter 2 is provided therein. The filter 2 has the appearance as shown in FIG. 2, and the base material is made of polyester non-woven fabric,
Before the sewing, the tape material 3 made of soft vinyl chloride is pressed by the heated roller and fixed to the filter 2, whereby the filter portion is divided into a plurality of parts. In addition, the tape material 3 is pressed by the heated roller and is applied to the filter 2
When it is fixed to the filter 2, it is partially melted and filled between the fibers of the base material of the filter 2 to completely fill the gap.

Therefore, even if a part of the filter 2 gets wet by the water sucked into the dust box 1, the water is blocked at the part filled with the tape material 3 and cannot penetrate or diffuse further, so that the wetness of the filter further spreads. There is no such thing. Therefore, the part of the filter 2 which is not wet can be surely secured, and good air permeability can be secured.

Further, the fixing of the tape material 3 to the filter 2 and the filling of the tape material into the filter 2 are performed by rolling a roller which is heat-transferred by an electric heater while rolling the roller while pressing the tape material on the tape material. , Pressurize. The tape material 3 is made of soft vinyl chloride and has a low melting point because it is made of polyester as a base material. Therefore, even if a part of the tape material 3 is melted, the base material does not melt, and therefore the filter 2 has holes. There is no.

[0010]

As is apparent from the above embodiments, according to the present invention, water is absorbed in the dust box by dividing the substrate portion into a plurality of filter portions by fixing a tape material such as soft vinyl chloride. Even if a part of the filter gets wet, the penetration and diffusion of the water is surely blocked at the part where the tape material is filled in the base material, so that the wetness may spread to the entire filter. It is possible to provide a filter for an electric vacuum cleaner that is reliably prevented, ensures good ventilation, and can maintain good intake performance.

Further, there is a practical effect that fixing and filling of the tape material to the filter substrate can be carried out very easily and reliably and continuously.

Further, there is an effect that the base material of the filter is not melted when the tape material is melted and holes are not opened so that the tape material can be processed reliably.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an electric vacuum cleaner using a filter according to an embodiment of the present invention.

FIG. 2 is a perspective view of the filter.

FIG. 3 is a sectional view of a tape material filling portion of the filter.

[Explanation of symbols]

 2 Filter 3 Tape material

Claims (1)

[Claims] 1. A base material having breathability such as polyester non-woven fabric and made of a fine mesh material and a tape made of a material having flexibility and a melting point lower than that of the base material are heated and heated. A filter for an electric vacuum cleaner, which is fixed so as to be divided into a plurality of parts by pressure, and a tape material is permeated into a base material to fill gaps between fibers of the base material.