JPS63162008A - Bonding structure of plate end of oil filter - Google Patents

Abstract

PURPOSE:To secure the appropriate thickness of an adhesive layer in the title bonding structure of a plate end and to prevent the sticking of an adhesive to a heater, by providing a projecting stopper part and a part for preventing the protrusion of the adhesive to the plate end. CONSTITUTION:The projecting stopper part 1a and the part 1b for preventing the protrusion of the adhesive are provided to the plate end 1. When the adhesive 2 is arranged between the end plate 3 of a filter element 4 and the plate end 1, the plate end 1 is pressed, and the adhesive 2 is melted by a heater to bond the end plate 3 and the plate end 1. In this case, the thickness of the adhesive layer can be fixed by the stopper part 1a and the height of the projection. Besides, since the protrusion part of the adhesive 2a is covered by the protrusion preventing part 1b, the sticking of the protruded adhesive to the heater can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an oil filter for automobiles, and more particularly to an adhesive structure for a plate end of an oil filter.

[Conventional technology]

Conventionally, the bonding structure of the plate end of an oil filter is as shown in FIG. 6. When bonding the P filter element 4 and the plate end with a flat bonding surface using real melt adhesive, the heater 5 is attached to the plate end. It is pressed and bonded by melting hot melt adhesive.

[Problem that the invention seeks to solve]

In the adhesive structure of the plate end of the oil filter described above, as shown in FIG. 7, it is difficult to secure proper adhesive layers W and L, resulting in insufficient adhesive strength, and as shown in FIG. When pressing 5, the adhesive 2 shows the sign 2.
There was a problem in that it protruded out and adhered to the heater 5 as shown in a.

[Means for solving problems]

In the present invention, a stopper part having a protrusion that can set the adhesive layer to a constant thickness and a protrusion prevention part that covers the adhesive protrusion part are formed on the plate end.

[Effect]

In the plate end adhesive structure of the present invention, r
When adhesive is placed between the end plate of the 8 element and the plate end, and the plate end is pressed by a heater to melt the adhesive and bond the end plate and the plate end, the protruding stopper portion of the plate end The thickness of the adhesive layer can be made constant depending on the height of the protrusion,
In addition, since the overflowing adhesive portion is covered by the overflow prevention portion of the plate end, the overflowing adhesive does not adhere to the heater.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention shown in the drawings will be described. Second
The figure is a half-sectional view showing the overall structure of an oil filter having an embodiment of the bonding structure of the plate end of the oil filter according to the present invention, and FIG. 1 is a detailed view of the plate end portion of the oil filter shown in FIG. 2. In Fig. 2, ■ is the plate end, 2 is the adhesive, 3 is the end plate of the overlay element 4, and the case 7 is blind at one end.
A filter element 4 is housed inside. The open end of this case 7 is closed with a beam reinforcement plate 12,
The closure plate 11 provided on this plate 12 is fixed to the periphery of the open end of the case 7 by tightening. This fixing portion 8 projects in the axial direction of the case 7 and forms a stopper portion. A gasket holding portion IO is provided by bending the closure plate 11. At the center of reinforcement plate ■2 is an oil outlet 12a that also serves as a mounting hole.
However, a plurality of oil inlets 12'o are provided around it. 13 is a check valve, 14 is a protector, 15 is a support spring, 16 is an annular projection, and 17 is a relief valve.

In FIG. 1, the plate end 1 is pressed with an iron plate so that a protruding stopper portion 1a and an adhesive extrusion prevention portion 1b are provided on the outer periphery. The upper and lower end surfaces of the filter element 4 are sealed by hot melt adhesive 6 and end plates 3 made of kraft paper. A method of placing hot melt adhesive 2 between the filter element 4 and plate end 1 and heating and bonding with a heater is a method that can shorten the assembly time and reduce processing costs.
As shown in FIG. 1, the protruding stopper portion 1a as thick as the plate end 1 comes into contact with the end plate 3 of the element 4, and the adhesive layer thickness is set to the optimum layer thickness as shown in FIG. Obtainable. Moreover, the adhesive 2a that protrudes from the stopper part 1a during adhesion is accommodated within the protrusion prevention part 1b, and can be prevented from protruding from the plate end.

In the above examples, hotmate adhesive was used, but the invention is not limited to this, and epoxy adhesive,
It is also possible to use various other adhesives.

In addition, although the plate end 1 is made of iron plate, the material is not limited thereto. Furthermore, the shape of the stomper portion 1a is not limited to a ring shape, but may be shaped as shown in FIGS. 3 and 4. Alternatively, the shape of the extrusion prevention portion 1b may be such that a slit ld is formed in line with the opening of the axial oil passage C of the filter element 4, as shown in FIG.

〔Effect of the invention〕

As described above, in the plate end bonding structure of the oil filter according to the present invention, the end plate 3 of the filter element
The thickness of the adhesive between the plate end 1 and the plate end 1 can be made the same as the thickness of the protrusion on the stopper part of the plate end, and the thickness of the protrusion on the stopper part can be set to the optimal thickness L of the adhesive. The thickness of the adhesive can be set to the optimum thickness, which has the effect of increasing adhesive strength.
Covering with b has the effect of preventing the adhesive from adhering to the heater.

[Brief explanation of the drawing]

FIG. 1 is an enlarged cross-sectional view of essential parts showing the structure of an embodiment of the adhesive structure for the plate end of an oil filter according to the present invention;
FIG. 2 is a half-sectional view showing the overall structure of an oil filter having an embodiment of the adhesive structure for the plate end of the oil filter according to the present invention, and FIGS. 3 to 5 show the adhesive structure for the plate end of the present invention. 6 is a schematic diagram showing the bonding structure and heater at the end of plate 1 of a conventional oil filter; FIG. 7 is a diagram showing the relationship between adhesive layer thickness and adhesive strength. The characteristic diagram, FIG. 8, is a schematic diagram showing a state in which adhesive protrudes in a conventional plate end adhesive structure. ■...Plate end, 1a...Stopper part, 1
b...Protrusion prevention part, ld...Slit 2, 6
... Adhesive, 3... End plate of filtration element, 4...
-Filtration element, 5...heater.

Claims (1)

[Claims] An adhesive structure for a plate end of an oil filter, characterized in that the plate end is formed with a stopper part having a protrusion that can set an adhesive layer to a constant thickness, and an extrusion prevention part that covers an adhesive extrusion part.