JPS647207Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an oil filter spacer mounting device mainly applied to automobile engines.

(Conventional technology) Conventionally, oil filters were treated as consumables.
It is generally installed removably and replaceably on the outside surface of the engine block, but due to the layout of the engine room, the oil filter must be installed so that it protrudes outward from the outside surface of the engine block, otherwise it will be difficult to replace it. In this case, the oil filter is attached to the outer surface of the engine block via a spacer.

Here, the spacer is generally fastened to the engine block by a center bolt inserted through the center of the spacer with an O-ring interposed between the spacer and the outer end of the center bolt on the outer surface of the spacer. The oil filter is removable using the screw.

(Problems to be solved by the invention) In the above conventional technology, when the center bolt is tightened, the spacer rotates relative to the engine block, causing the
The ring may be twisted and deformed, resulting in poor sealing performance.

SUMMARY OF THE PRESENT EMBODIMENT It is an object of the present invention to provide a device which solves the above problems by preventing the spacer from rotating when the center bolt is tightened.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a mounting surface of an engine block which is brought into contact with an O-ring,
The mounting surface of the spacer for installing the oil filter,
A center bolt inserted through the center of the spacer is screwed into the engine block for fastening, and the bolts are integrally protruded from the mounting surface of the engine block and the mounting surface of the spacer and are orthogonal to each other. It is characterized in that it is provided with an engaging protrusion that engages with the user.

(Example) The present invention will be explained with reference to the illustrated embodiments.

Referring to FIGS. 1 and 2, 1 is an engine block, and 2 is an oil filter, and the filter 2 is attached to the outer surface of the block 1 via a spacer 3.

To explain this in more detail, the engine block 1
On the outer surface of the block 1, as shown in FIG.
A central oil flow hole 5 connected to the lubricating oil passage 4 inside
and an annular oil inflow groove 6 around the mounting base 7, and the spacer 3 has a bolt insertion hole 8 in the center that matches the outflow hole 5, and a bolt insertion hole 8 in the center that matches the inflow groove 6. An O-ring 10 is provided on the outer periphery of the end surface of the spacer 3 facing the mounting base 7, and a center bolt 11 is inserted into the insertion hole 8 to connect it to the outflow hole. 5, the spacer 3 is fastened to the mounting base 7, and the center bolt 11 has a shaft hole 12 passing through it in the axial direction.
and a threaded portion 13 at the outer end, and the oil filter 2 is screwed into the threaded portion 13 and fastened to the outer end surface of the spacer 3, and is pumped into the inflow groove 6 from an oil pump (not shown). Oil flows into the filter 2 through the communication hole 9, and oil that has passed through the filter element 14 in the filter 2 is supplied to the lubricating oil passage 4 through the shaft hole 12 and the outflow hole 5. I tried to force it. In the drawings, reference numeral 16 indicates a reed valve provided on the inflow side of the filter 2.

Although the above is not particularly different from the conventional one, according to the present invention, an engaging portion 15 is provided to prevent the spacer 3 from rotating relative to the engine block 1. Each protrusion 15a, 15b is provided on the outer periphery of the end portion and on the outer side of the mounting base 7.
are protruded to form the engaging portion 15, and the rotation of the spacer 3 in the tightening rotational direction of the center bolt 11, that is, in the clockwise direction in FIG. I did it like that.

(Function) The function of the present invention will be explained based on the above embodiment. When the spacer 3 is fastened to the engine block mounting base 7 by tightening the center bolt 11, the friction torque from the bolt 11 is applied to the spacer spacer 3. However, according to the present invention, this frictional torque is received by the engaging portion 15 to prevent the spacer 3 from rotating relative to the block 1, and to prevent the spacer 3 from rotating with respect to the block 1. O-ring 1 to be installed
0 is the bolt 11 without receiving any force in the rotational direction.
is clamped between both 3 and 7 by the axial tightening force of
No irregular deformation such as twisting occurs in the O-ring 10,
The sealing performance is improved, and oil leakage from the joint surface between the spacer 3 and the mounting base 7 can be reliably prevented.

(Effects of the invention) As described above, according to the invention, the mounting surface of the engine block 1 that comes into contact with the O-ring 10,
Since the engaging protrusions 15a and 15b are provided integrally with the mounting surface of the spacer 3 and engage perpendicularly to each other, the center bolt 11 inserted through the center of the spacer 3 is connected to the engine block 1. Rotation of the spacer 3 with respect to the engine block 1 due to the screw engagement is prevented by the engagement of the engagement protrusions 15a and 15b, and deformation of the O-ring 10 is prevented by the engagement protrusions 15a and 15b.
Since the process is completed after a and 15b are engaged, there is no need to provide a positioning pin or the like on the spacer 3, and irregular deformation such as twisting of the O-ring can be prevented, good sealing performance can be obtained, and the installation is easy. have an effect.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an engine block equipped with the device of the present invention, and FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, showing the oil filter installed. 1...Engine block, 2...Oil filter, 3...Spacer, 10...O ring, 11...
...Center bolt, 15...Engagement part.

Claims (1)

[Scope of utility model registration request] The mounting surface of the engine block that contacts via the O-ring and the mounting surface of the spacer for mounting the oil filter are fastened together by threading a center bolt inserted through the center of the spacer into the engine block. A spacer for an oil filter of an engine, characterized in that an engaging protrusion is provided that protrudes integrally from the mounting surface of the engine block and the mounting surface of the spacer and engages orthogonally to each other. mounting device.