JPH11247995A - Coupling type gasket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of such a problem that a burrlike part of adhesive which is solidified in a joint part after being pushed out of the joint parts is dropped into an oil pan. SOLUTION: When members 2, 3 are joined, an excess of an adhesive applied to end parts of parts 2a, 3a to be joined, is pushed out of the end parts. Of this adhesive, an adhesive part 8 pushed out toward opposite ends of the parts 2a, 3a to be joined is retained in cut-outs 6, 7, thereby it is possible to prevent the adhesive 8 from being pushed out from the opposite ends of the parts 2a, 3a to be joined. Thus, the adhesive 8 which is solidified so as to have a burr-like shape, can be prevented from being dropped into an oil pan, thereby it is possible to prevent oil form being mingled therein with foreign matter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection type gasket in which a gasket main body has a structure in which a plurality of divided members are combined, and more particularly to a connection type gasket characterized in a form at a joint portion of each member.

[0002]

2. Description of the Related Art Conventionally, as an oil pan gasket, a cylinder head gasket, or the like, a connection type gasket having a structure in which a gasket body is divided into a plurality of members may be used. The reason why such a connection type gasket is used is that a large amount of residual material is not generated and the material cost can be reduced.For example, an oil pan gasket is punched out of a stainless steel sheet and is integrated. When manufacturing as, a large amount of residual material after punching the gasket will be generated, but the members divided into a plurality are punched out so that there is no waste in the steel sheet, and as a combination structure of them In the case of manufacturing, the above does not occur. FIG. 7 illustrates a connection type oil pan gasket 100 of this type.
Are members 101 to 1 each having a gasket body divided into four parts.
04, and the joining portions of the divided members 101 to 104 are, for example, as shown in FIG.
As shown in detail in FIG. 1, a convex portion provided on one member 101 is fitted into a concave portion provided on the other member 102, and the ends of these joint portions are made of, for example, epoxy resin. An adhesive is applied, so that the two members 101 and 102 are joined at the joint.

[0003]

However, when an adhesive is applied to the ends of the above-mentioned joints and joined, the adhesive protrudes from both ends of the joints, and then these solidify to form burrs. (Such as 105 shown in FIG. 8) may be attached to both side ends. For example, an oil pan gasket in which such a burr-like substance is adhered is formed by an oil pan and a block. If interposed, the burr-like material falls into the oil pan, and a problem occurs that foreign matter is mixed into the oil.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connection type gasket in which a burr-like substance of an adhesive solidified at a joint does not protrude from both ends of the joint and falls into, for example, an oil pan. Is to provide.

[0005]

In order to solve the above-mentioned problems, a connection type gasket according to the present invention has a gasket main body having a structure in which a plurality of divided members are combined. When joining
Such a concave portion for releasing the adhesive is provided at one joint portion of the member or at both joint portions of the member, and is applied to various gaskets such as an oil pan gasket and a cylinder head gasket. Things. The adhesive depends on the material of the gasket body, but may be a resin-based one such as epoxy or a synthetic rubber-based one such as NBR (nitrile butadiene rubber) or CR (chloroprene rubber). Also, the shape of the concave portion is
Although it is not particularly limited, the joint portion is provided with a cutout at, for example, both side ends thereof to allow the adhesive to escape, and the size thereof is appropriately determined without impairing the original function of the gasket. Shall be. By providing the concave portion for releasing the adhesive in this manner, the protrusion of the adhesive can be retained in the concave portion, so that the solidified burr-like material described above falls into the oil pan. Therefore, there is no problem that foreign matter is mixed in the oil.

[0006]

FIG. 1 shows an example of an embodiment of the present invention.
This will be described with reference to FIGS. As shown in FIG. 1, the connection type gasket according to the present embodiment is an oil pan gasket 1 interposed between an oil pan and a cylinder block (both not shown). The gasket main body has a combination structure of approximately rectangular members 2 to 5 made of a stainless steel plate divided into four parts. For example, as shown in detail in FIG. Is formed so as to be fitted in the concave portion provided in the other member 3, and an adhesive of epoxy resin is applied to the ends of these joint portions 2 a and 3 a. As a result, the joining portions 2a and 3
The members 2 and 3 are joined at a. Moreover, in this embodiment, recesses are provided at both ends of the joints 2a and 3a in the members 2 and 3, respectively, and these recesses allow substantially semicircular notches to be formed at both ends of the joints 2a and 3a. 6 and 7 are formed respectively. The notches 6 and 7 are connected to the joining portions 2a and 3 as described later.
This is for letting out the adhesive that has protruded from a.

[0007] When such a gasket 1 is used, a large amount of residual material is not generated and the material cost can be reduced. In addition, as described above, the adhesive is bonded to the joints 2a and 3a.
Can be prevented from protruding from both sides of the. That is, when the members 2 and 3 are joined, the adhesive applied to the ends of the joints 2a and 3a protrudes from these ends, and of the adhesive which has protruded, both ends of the joints 2a and 3a. The adhesive 8 protruding in the direction is retained in the cutouts 6 and 7, thereby preventing the adhesive 8 from protruding from both side ends of the joints 2 a and 3 a. Therefore, the adhesive 8 hardened into a burr-like material as described above does not fall into the oil pan, and there is no problem that foreign matter is mixed in the oil.

In the present embodiment, a description has been given of a case in which substantially semicircular notches 6 and 7 are formed at both side ends of the joints 2a and 3a in order to release the protrusion of the adhesive. As shown in FIG. 6, V-shaped notches 9 and 10 may be formed on both side ends of the joints 2a and 3a. In addition, as shown in FIG. 4, notches 11 and 12 may be provided only on both side ends of the joint 2a. Further, when the joint portion 3a is provided with, for example, a bolt hole 13, the notch portions 6 and 7 are provided, and the joint portions 3a protrude from the end surfaces of the joint portions 2a and 3a to the upper and lower surfaces thereof. As a recess for releasing the adhesive 14, a release hole 15 as shown in FIG. 5 or a gap 16 as shown in FIG.
3 may be prevented. In this case, the shape and size of the escape hole 15 are not limited to the most suitable one for allowing the adhesive 14 to escape, and of course, the provision of such a concave portion is appropriate so as not to impair the original function of the gasket. I do. 3 to 6, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

[0009]

According to the connection type gasket of the present invention, there is caused a problem that the burr-like substance of the adhesive solidified at the joining portion falls into, for example, an oil pan and mixes foreign matter into oil. Nor.

[Brief description of the drawings]

FIG. 1 is a plan view of an oil pan gasket according to the present embodiment.

FIG. 2 is a detailed view of a portion A in FIG.

FIG. 3 is a detailed view of a concave portion according to another oil pan gasket.

FIG. 4 is a detailed view of a concave portion according to another oil pan gasket.

FIG. 5 is a detailed view of a concave portion according to another oil pan gasket.

FIG. 6 is a detailed view of a concave portion according to another oil pan gasket.

FIG. 7 is a plan view of a conventional oil pan gasket.

FIG. 8 is a detailed view of a portion B in FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Oil pan gasket (connection type gasket) 2-5 Members (gasket main body) 2a, 3a Joint 6,7 Notch (concave) 8,14 Extruded adhesive 9,10,11,12 Notch (concave) 15) Release hole (recess) 16 Gap (recess)

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takeshi Kenda 3-1-1, Hinodai, Hino-shi, Tokyo Inside Hino Motors, Ltd.

Claims (1)

[Claims] 1. A connection type gasket in which a gasket main body has a combination structure of members divided into a plurality of members, wherein when joining the members with a required adhesive, a concave portion for releasing the adhesive is provided in at least the member. A connection type gasket provided on one of the joints.