JPS6110740Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in over-elements in rectangular air cleaners for vehicle engines.

In general, a rectangular air cleaner for a vehicle engine is made of wavy pleated paper 1' with shape-retaining craft paper 2' pasted on both sides in the longitudinal direction, as shown in Figure 1, and tin plates at both ends. A reinforcing end plate 3' is provided, and a belt-shaped packing 4' made of elastic synthetic resin material such as urethane foam is glued to the bottom periphery, but bending force is applied during manufacturing and attachment/detachment. When this happens, since both sides are only supported by the kraft paper 2', it will easily bend, and in the worst case, it may crack as shown by the dotted lines.

In particular, if the over-element is housed in the cleaner case a, the packing 4' will stick to the underframe b due to pressure and heat, making it difficult to remove the over-element for cleaning or replacement. occurs frequently.

Therefore, this idea is to provide a over-element that is difficult to bend even if bending force is applied during manufacturing or attachment/detachment, and will not be easily damaged even after long-term use. on the underside of the pleated paper with the end plate attached.
A reinforcing member made of wire mesh or metal lath is provided with upwardly bent portions on both side edges and beaded portions are formed in the longitudinal direction of the flat length. It is characterized by being adhered to the above-mentioned paper along with packing.

Figures 2 and 3 show an embodiment of this invention, in which 1 is a piece of paper that has been pleated in a wavy manner and cut to a required length, with features on both sides in the longitudinal direction as described above. A holding craft paper 2 (the upper and lower ends are bent to cover the paper 1) is pasted, and end plates 3 made of tin plate are attached to both end surfaces in an inset manner. On the lower side (corresponding to the upper side in Fig. 2), there is a reinforcing member made of wire mesh or metal lath and having upwardly bent parts 5a on both side edges as shown in Fig. 5, and a bead part 5b formed in the longitudinal direction at the center of the flat part. 5 are fitted and disposed, and elastic band-shaped packing 4 made of urethane foam or the like is integrally adhered to the lower peripheral edge including the reinforcing member 5.
Note that the above-mentioned kraft paper 2 may be cored.

To explain how to attach the reinforcing member 5 and the packing 4, first adhere the kraft paper 2 to both sides of the pleating paper 1, and then attach the kraft paper 2 to the bottom of the element part with the end plates 3 attached to both end faces as shown in Fig. 4 (a). Fit the reinforcing member 5 as shown by the arrow, and place it on a frame-shaped mold 6 into which a required amount of liquid resin 4a such as urethane is injected, as shown in FIG. As shown in FIG. 3C, the reinforcing member 5 is attached so that it is adhered to the lower peripheral edge of the element component to form a packing 4, and the peripheral edge of the reinforcing member 5 is buried in the packing 4.

As described above, in this invention, a reinforcing member such as a wire mesh with upwardly bent portions formed on both side edges and beaded portions in the longitudinal direction of the flat length is fitted and disposed on the underside of the pleated paper. Since the periphery is bonded together with a band-shaped packing material, the element has great bending rigidity, and even if bending force is applied during manufacturing or attachment/detachment, it will not easily bend and will not crack like conventional methods. It can withstand long-term use without causing damage, and is easy to assemble because the reinforcing members can be assembled in a fitted manner without requiring any special holding means to the material.
In addition, if kraft paper with a core is used, it will be less likely to be damaged.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional square element.
FIG. 2 is a perspective view of the embodiment of this invention with a portion cut away after being turned over. FIG. 3 is a sectional view along the longitudinal direction of this invention. FIGS. 4A, 4B, and 4C are explanatory diagrams showing how to attach the reinforcing member. FIG. 5 is a perspective view of the reinforcing member. In the figure, 1, 1'... paper, 2, 2'... kraft paper, 3, 3'... end plate, 4, 4'... packing, 5... reinforcing member, 5a... bending part, 5
b...Bead part.

Claims (1)

[Scope of utility model registration request] On the underside of the pleated paper 1 with kraft paper 2 pasted on both sides and end plates 3 attached to both end faces, upwardly bent parts 5a are provided on both side edges, and bead parts 5b are formed in the longitudinal direction of the flat length. A rectangular air cleaner over-element is formed by fitting and disposing a reinforcing member 5 made of a formed wire mesh or metal lath, and adhering the peripheral edge of the reinforcing member 5 to the above-mentioned paper 1 together with a belt-shaped packing 4 made of an elastic synthetic resin material.