JP3006350U - Air-cleaner filter element - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a cleaner element having an increased surface area without changing the height and depth of peaks and valleys in a conventional filter element for an air cleaner. [Structure] In a filter element 1 in which peaks and valleys are formed in a zigzag continuous cross-sectional shape by any of woven cloth, non-woven cloth, and paper, the cross-sectional shape of the bottom of the valley is formed into a circular shape 1c having an appropriate curvature.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cross-sectional shape of a filter element of an engine air cleaner, and more particularly to a filter element that can form a larger surface area even if the depth of a valley or the height of a crest is the same.

[0002]

[Prior art]

 Conventionally, in the filter element of an engine air cleaner, an element body 11 made of woven cloth or non-woven cloth is shown in FIG. 4 in order to secure a required air filtration area without increasing the outer shape of the cleaner itself. As shown, sharp peaks 11a and valleys 11b are continuously formed in a zigzag cross section. In FIG. 4, reference numeral 12 denotes a guard body made of a metal mesh for holding the zigzag cross-sectional shape and protecting the element body 11 itself.

In the conventional element body 11 described above, in order to increase the surface area, that is, the filtering area with the same outer shape or the same outer diameter, it is sufficient to raise the peak 11a and deepen the valley 11b. When the surface area is increased by this method, the inner diameter of the cleaner becomes smaller due to the depth of the valley 11b, which may cause interference with the suction pipe to be connected or the connection adapter, and the peaks and valleys become too deep. As a result, it is difficult for air suction to be smooth between the ridge 11a side and the valley 11b side of the element body 11, and there is a difference in suction rate between the ridge side and the valley side, making it difficult to obtain the effect of increasing the surface area. .

[0004]

[Problems to be solved by the device]

 In view of this point, an object of the present invention is to provide a filter element having an increased surface area without changing the height and depth of the peaks and valleys in the conventional filter element for an air cleaner.

[0005]

[Means for Solving the Problems] The structure of the filter element of the present invention made for the purpose of solving the above problems is a cross-sectional shape in which peaks and valleys are continuous in a zigzag shape by any of woven cloth, non-woven cloth, and paper. In the filter element formed in the above, the cross-sectional shape of the bottom of the valley is formed in a circular shape having an appropriate refractive index.

In the present invention, it is possible to form the cross-sectional shape of the crests of the peaks in a circular shape having an appropriate curvature, or to form the peaks and valleys having the circular tops and bottoms together.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of an example of the filter element of the present invention, FIG. 2 is a cross-sectional view of a main part of another example of the present invention, FIG. 3 is a diagram for explaining the size of the surface area, and FIG. FIG. 4 is a cross-sectional view of a main part of an example of a conventional element.

In FIGS. 1 and 2, reference numeral 1 denotes a filter element body made of woven fabric such as cotton, non-woven fabric of cotton or chemical fiber, or paper. The element body 1 has peaks 1a and valleys similar to conventional products. 1b is formed in a continuous zigzag shape.

In the present invention, when forming the ridges 1a and the valleys 1b, in the embodiment of FIG. 1, the bottom of the valleys 1b is formed in the circular portion 1c by a part of a circle having an appropriate curvature or radius. .

In the above circular portion 1c, the total length of the sides near the bottom of the valley 11b of the conventional product shown by the chain line as schematically shown in FIG. 3 and the bottom of the valley 1b according to the present invention shown by the solid line are A comparison with the circumferential length of the circular portion 1c to be formed shows that the length of the circular portion 1c of the valley 1b of the present invention is large, in other words, the surface area of the filter element is large.

In the example of FIG. 1, the bottom side of the valley 1b of the element body 1 is formed in a circular portion 1c, but in the present invention, this cross-sectional shape is as shown in FIG. It may be applied to the top of the mountain 1a. 1d is a circular portion formed on the top of the mountain 1a.

With this configuration, the circular portions 1c and 1d of the peaks 1a and the valleys 1b having the cross-sectional perimeter larger than that of the conventional product are formed on the entire outer circumference of the filter element body 1, so that the entire filter element is The surface area can be made large even if the height and depth of the zigzag peaks and valleys are the same as those of the conventional product.

Further, in the conventional filter element, since the valley is formed in a V shape, the bottom thereof is likely to be clogged with dust, and in this respect as well, the suction efficiency is likely to decrease, but as in the present invention. If the bottom of the valley is made to have a circular cross section, the inhaled dust will be distributed over a wide range, and clogging will not easily occur.

In the embodiment of the present invention shown in FIGS. 1 and 2, a mesh guard for securing the outer surface shape of the element body 1 and protecting the outer surface is not shown, but it is similar to the conventional product. Guards shall be provided.

Further, although the circular portion 1c or 1d according to the present invention is formed only on the top of the peak 1a in the filter element body 1 (not shown), the same effect of increasing the surface area as in the embodiment of FIG. 1 can be obtained. .

[0016]

[Effect of device]

 The present invention is as described above, and the peak area and the valley depth of the filter element body in which the peaks and valleys are continuous in a zigzag shape are kept the same as those of the conventional one, and the surface area of the element body is increased. Since it can be formed, a filter element having a large air suction area can be obtained without increasing the outer shape (inner diameter, outer diameter).

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of an example of a filter element of the present invention.

FIG. 2 is a sectional view of a main part of another example of the present invention.

FIG. 3 is a diagram for explaining the size of the surface area.

FIG. 4 is a sectional view of a main part of an example of a conventional element.

[Explanation of symbols]

 1 Filter element body 1a Mountain 1b Valley 1c Circular part

Claims (3)

[Scope of utility model registration request] 1. A filter element in which ridges and valleys are formed in a zigzag continuous cross-sectional shape by any one of woven cloth, non-woven cloth, and paper, and the cross-sectional shape of the bottom of the valley is formed into a circular shape having an appropriate curvature. Air-cleaner filter element characterized by: 2. A filter element in which peaks and troughs are formed in a zigzag continuous cross-sectional shape by any one of woven cloth, non-woven cloth, and paper, and the cross-sectional shapes of the bottom of the troughs and the peaks of the peaks are appropriately circular A filter cleaner element for an air cleaner, characterized in that 3. A filter element in which ridges and valleys are formed in a zigzag continuous cross-sectional shape by any of woven cloth, non-woven cloth, and paper, and the cross-sectional shape of the peak is formed to have a circular shape with an appropriate curvature. Air-cleaner filter element characterized by: