JPS6366250B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter for filtering and cleaning fluids such as liquids and gases.

As shown in FIG. 1, a conventionally known overbody of this type is formed by forming a corrugated part 1a on one side and a flat part 1b on the other side with the center of a piece of strip material 1 as a border, and then forming this material 1. It has a structure in which the material 1 is wound through a core 2, and the material 1 is bonded with adhesive A to form a bag-like portion 1c. The contaminated fluid passes through the bag-shaped portion 1c and enters the material 1 as shown by the arrow in FIG.
It is becoming more and more common to pass through and be passed through.

The conventional overbody having the above structure has the following drawbacks.

(1) Since the corrugated portion 1a and the flat portion 1b of the material 1 are bonded together with the adhesive A, the overarea is reduced and the pressure loss of the fluid increases accordingly.

(2) Corrugated part 1a on one side with the center of material 1 as the boundary
However, since the flat portion 1b is provided on the other side, processing is troublesome.

(3) The overall shape is limited to a cylindrical shape, and there is no flexibility in shape.

The present invention aims to provide a carrier which eliminates the above-mentioned drawbacks, and the present invention will be explained in detail below using specific examples.

3 to 6, the material 3 according to the present invention has, as shown in FIG. 3, a fan-shaped overall planar shape in which one side is short and the other end is long. . This material 3 is made up of a plurality of arcuate lines m-
m′...q−q′ is provided. Furthermore, the side l-l' at one end of the material 3 and the side r-r' at the other end are shaped to follow arcuate lines having different centers from the above-mentioned lines. These streaks are formed on the material 3 by using a creasing roller, heat pressing, or the like, and the material 3 may be made of any material such as paper, nonwoven fabric, or felt.

As shown in FIG. 4, the material 3 on which the striations are formed is bent into a wave-shaped cross section at the striations, and
The ends l-l'...r-r' are adhered with an adhesive 4 as shown in FIG. 5 to form an overbody 6. In the figure, reference numeral 5 denotes a core made of an impermeable material such as resin, which is fixed to the inside of the overbody 6 with the adhesive 4 described above.

In the above configuration, the contaminated fluid flows in the direction of the arrow in FIG. 7 and becomes clean.

8 to 10 show other embodiments of the present invention. In this embodiment, the centers of the striations on the material 3 are different, and their radii are also different, and the overbody 6 according to this embodiment is as shown in FIG. 9.

In addition, although the intervals between the plurality of stripes of the material 3 in each of the above embodiments are equal, it is of course possible to make the intervals different. Moreover, the embodiment of the present invention is
It has various uses such as air purifiers for internal combustion engines, purifiers for general air conditioning, oil filters, and general liquid filters.

In summary, the present invention has the following effects.

(1) There is no need to glue the inlet side of the material with adhesive as in the conventional spiral overbody, so the overbody area can be increased and fluid pressure loss can be reduced.

(2) The material is easier to process than the conventional example in which a corrugated portion is formed on one side and a flat portion is formed on the other side with the center of the material as a boundary.

(3) The shape of the overbody can be manufactured into various shapes, which is advantageous when it is desired to change the shape of the overbody depending on the location where the overbody is installed.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a perspective view showing the main parts of Fig. 1, Figs. 3 to 5 are views showing the manufacturing process of the present invention, and Fig. 3 is FIG. 4 is a plan view showing the material shown in FIG. 3 in a bent state, FIG. 5 is a plan view showing the overbody, FIG. 6 is a perspective view of FIG. 5, and FIG. FIG. 5 is a cross-sectional perspective view for explaining the action of the overbody shown in FIG. 5, FIG. 8 is a plan view of a material in another embodiment of the present invention, and FIG. 9 is made by bending the material shown in FIG. 8. FIG. 10 is an enlarged plan view of the main part of FIG. 9. 3...Material.

Claims (1)

[Scope of Claims] 1. A fan-shaped member having a side dimension at one end shorter and a side dimension at the other end longer than that at the one end is bent into a wave-shaped cross section between the one end and the other end, and The material is an overbody having a curved configuration such that the one end is on the inside and the other end is on the outside, and a plurality of striations are formed in the material to bend the material into the wavy cross-sectional shape. , an overbody characterized in that each of the plurality of muscles is composed of arcuate lines having different centers.