JP2522406Y2 - Gasket for oil filter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasket for sealing an oil filter and its mounting portion in an engine mounted on an automobile or the like, and more specifically, to a gasket for an oil filter mounted on the oil filter. It relates to structural improvement.

[0002]

2. Description of the Related Art Conventionally, an oil filter for an engine mounted on an automobile or the like and a gasket for an oil filter for sealing a mounting portion thereof are generally constructed as shown in FIG. That is, the annular groove (7) conventionally provided in the oil filter (1)
And an O-ring shaped annular gasket (8) having the same shape as the annular groove (7), and the oil filter (1) is screwed to the oil filter mounting body (2). In order to assist the action of removing the metal powder generated in the oil filter, measures such as adding a magnet type iron powder removing device (not shown) in the oil filter have been taken.

[0003] In mounting the oil filter (1), after applying oil to the contact peripheral surface of the annular gasket (8), the oil filter (1) is manually rotated and tightened to an appropriate position. The magnet type iron powder removing device is a mounting structure in which a structure in which the iron powder removing device is inserted and fixed in a cylinder of the oil filter (1) is generally used.

[0004]

However, the O-ring shaped annular gasket (8) mounted in the annular groove (7) of the oil filter (1) is coated with oil for sliding on its contact peripheral surface. As can be seen from the above description, an extremely delicate feeling of mounting is required. If the rotation power is excessive, not only the stress is relaxed but also the annular gasket (8) may come off from the annular groove (7) or crack. If the tightening is loose, oil leakage will occur immediately. Further, in the structure in which the iron powder removing device is mounted in the cylinder of the oil filter (1), the post-processing structure in which the oil contacts the iron powder removing device after passing through the oil filter (1) due to the arrangement. Therefore, a significant effect on the purification and the life of the filter cannot be expected. An object of the present invention is to provide a gasket for an oil filter which removes such a serious drawback and not only facilitates mounting, but also has a strong metal powder removing action, is accurately mounted, and achieves stable sealing. And

[0005]

The present invention will be described with reference to the drawings. As shown in FIG. 2, an oil filter (1) for purifying oil of an engine and an oil filter mounting body (2) are sandwiched between the oil filter (1) and the oil filter mounting body (2). A gasket (3) for an oil filter which is attached and seals these two members (1) and (2). As shown in FIG. 1, an annular plate (4) along the sealing peripheral surface of the oil filter (1) is provided. A sealing portion (5) made of an elastic material such as synthetic rubber or synthetic resin is fixed to the outer peripheral side of the annular plate (4), and a permanent magnet (6) is disposed on the inner peripheral side. And Further, the annular plate (4) itself is formed of a magnetic material,
Is characterized in that a seal portion (5) made of an elastic body is disposed on the outer peripheral side of the seal member.

[0006]

The present invention has the following excellent functions with the above structure. To attach the gasket for oil filter (3) of the present invention to the oil filter mounting body (2),
As shown in FIG. 2, the permanent magnet (6) of the oil filter gasket (3) is magnetically attached to the mounting portion of the oil filter (1) in advance, and the seal portion (5) is arranged at an appropriate position. The oil filter (1) is screwed onto the oil filter mounting body (2), and the sealing portion (5) is brought into close contact with both sealing surfaces to complete the mounting. The mounted gasket (3) for an oil filter is compressed while maintaining an appropriate shape to exert a strong sealing action. On the other hand, the permanent magnet (6) disposed on the oil filter gasket (3) exerts a magnetic effect at the inlet of the oil flow path and before the filter, leaving iron powder discharged from the engine. It does not allow iron powder or the like to enter the filter.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to carry out the present invention, in forming the seal portion (5) of the gasket (3) for an oil filter,
It has been released from providing a structure for preventing falling-off from the annular groove (7) as in the prior art. For example, although not shown, the sectional shape is square, or the laminated shape sandwiching the annular plate (4) from both sides is free. With, a shape with high sealing performance can be selected. Further, in the permanent magnet (6), the annular plate (4) may be formed of a magnetic material or a metal plate that is magnetized later, and the annular plate (4) itself may have an adsorption function of iron powder or the like. The shape is not limited to the ring shape shown in FIGS. 1 and 2, and a plurality of magnetic pieces may be arranged at appropriate intervals.

The gasket for an oil filter of the present application (3)
As shown in FIG. 2, the oil circulation holes (9) are disposed at appropriate positions on the annular plate (4) so as to allow the oil to smoothly flow in and pass through, since they are arranged in the flow path directly facing the circulating oil.
It is important to provide a plurality of.

[0009]

According to the present invention, iron powder and the like are almost completely removed by the permanent magnet (6) integrated with the seal portion (5), and the performance and life of the filter are greatly improved. Further, the magnetic force of the permanent magnet (6) provides the effect of holding the seal portion (5), thereby eliminating improper mounting. In the seal portion (5), the hardness, mass, material and the like can be freely selected, not to mention the shape and shaping, and the sealing performance can be pursued.

[0010]

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing a state in which one embodiment of the present invention is mounted.

FIG. 3 is a sectional view showing a conventional structure that does not use the present invention.

[0011]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil filter 2 Oil filter mounting body 3 Oil filter gasket 4 Annular plate 5 Seal part 6 Permanent magnet 7 Annular groove 9 Oil circulation hole

Claims (3)

(57) [Scope of request for utility model registration] A gasket for an oil filter (1) sandwiched between an oil filter (1) for purifying oil of an engine and an oil filter mounting body (2) to seal the two members (1) and (2). In 3), an annular plate (4) is provided along the sealing peripheral surface of the oil filter (1), and a seal portion (5) made of an elastic body is fixed to the outer peripheral side of the annular plate (4). A gasket for an oil filter, wherein a permanent magnet (6) is disposed on a peripheral side. 2. The oil filter for an oil filter according to claim 1, wherein said annular plate (4) is formed of a magnetic material, and a seal portion (5) is provided on an outer peripheral side of said annular plate (4). gasket. 3. The gasket for an oil filter according to claim 1, wherein when the permanent magnet (6) provided on the annular plate (4) is mounted, the permanent magnet (6) is magnetically attached to the oil filter (1).