JPS62149313A - Oil filter - Google Patents

Abstract

PURPOSE:To realize high reliability and low cost by realizing simultaneously both connection of a casing and a plate and connection of a cover plate and the plate by a clamping part. CONSTITUTION:A plate 10 is turned back so as to sandwich a cover plate 5 and the turned-back end part of the plate 10 is clamped and fixed to the opening end of a casing 2, and thereby the plate 10 is fixed for the cover plate 5 and also the cover plate 5 is fixed. As a result, since the plate 10 is only clamped and fixed to the opening end of the casing 2 and conventional welding is not necessitated, an assembling man-hour can be reduced and high reliability and low cost can be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spion type oil filter installed in an internal combustion engine such as an automobile.

[Conventional technology]

A conventionally well-known oil filter consists of closing the open end of a casing housing a filter element with a cover plate having an oil inlet and an oil outlet, a plate welded to the outside of the cover plate, and connecting the outer periphery of the plate and the above-mentioned It has a structure in which the open end of the casing is secured by winding.

[Problem that the invention seeks to solve]

However, according to the above configuration, since there are welding locations and seaming locations, there are problems in that the manufacturing process is complicated, the cost is high, and reliability is also lacking.

[Means for solving problems]

The present invention provides: - A filter element is housed in a cup-shaped casing having an open end at all ends, and the open end of the casing is connected to a lid having an oil outlet in the center and an oil inlet around the outlet. An oil filter closed with a plate, in which a plate is arranged outside the cover plate, the plate is folded back to the inside of the cover plate so as to sandwich the cover plate, and the folded end of the plate is The casing is secured to the open end of the casing by tightening, and the cover plate is held between the tightening and a portion of the plate located outside the cover plate.

[Effect]

In the present invention, the plate is folded back so as to sandwich the lid plate, and the folded end of the plate is secured to the open end of the casing, thereby making it possible to fix the plate to the lid plate and also fixing the lid plate. can also be fixed.

〔Effect of the invention〕

Therefore, according to the present invention, conventional welding is not required by simply fixing the plate to the open end of the casing, reducing assembly man-hours and achieving high reliability and low cost. .

〔Example〕

FIG. 1 shows an oil filter 1 according to an embodiment of the present invention, in which a filter element 4 is housed via a spring 3 in a cup-shaped casing 2 with an open wide end. The open end of the casing 2 is closed by a cover plate 5 via a check valve 6. A detailed view of the vicinity of the lid plate 5, which is the key point of the present invention, is shown in FIG. In FIG. 2, the cover plate 5 has an oil passage hole 7 serving as an oil outlet and a threaded portion 8 in the center thereof, and a plurality of inlets 9 serving as oil inlets on the outer circumferential portion thereof. Reference numeral 10 denotes a plate located below and outside of the lid plate 5, and has a recessed portion 12 with a flat portion 11. The cover plate 10 is folded back to the inside of the cover plate 10.
It looks like it's holding it in place. A gasket 13 is inserted into the recess 12 and coupled thereto. 14 is a flange portion at the open end of the casing 2. Reference numeral 15 denotes a seam-fastened portion formed by seaming and fixing the folded end of the plate 10 and the open end of the casing 2. They are arranged so as to be sandwiched between them. Note that the plate 10 is not welded to the cover plate 5, but only contacts it.

According to the above configuration, the seaming portion simultaneously realizes (1) coupling the casing 2 and the plate 1O, and (2) coupling the lid plate 5 and the plate 10.

To explain the operation, contaminated lubricating oil from an internal combustion engine flows into the inlet 9 and flows into the main body of the oil filter 1 while deforming the check valve 6. The inflowing contaminated oil is filtered by passing through the filter element 4 and becomes clean oil, which is then supplied to the lubricating section of the internal combustion engine via the oil passage hole 7. Note that if the filter element 4 becomes clogged and causes an increase in oil pressure, the bypass valve 16
will be released.

Further, this oil filter 1 is threaded so as to compress a gasket 13 into a threaded part of an internal combustion engine (not shown) at a threaded part 8 of the cover plate 5.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 3 is a cross-sectional view showing an enlarged main part of the figure. 2...Casing, 4...Filter element, 5
...Lid plate, 8...Oil passage hole as oil outlet, 9.
...Inlet 1o...plate as oil inlet. 15... Sealing part.

Claims (1)

[Claims] A filter element is housed in a cup-shaped casing having an open end at one end, and the open end of the casing is
An oil filter closed by a lid plate having an oil outlet in the center and an oil inlet around the outlet, a plate being disposed outside the lid plate, and the plate being extended to the inside of the lid plate. The folded end portion of the plate is secured to the open end of the casing by being folded back so as to sandwich the cover plate, and the folded end portion of the plate is secured to the open end of the casing, and the portion of the plate located outside of the cover plate is connected to the folded end portion of the plate. An oil filter characterized in that the lid plate is sandwiched between.