JP2022063927A - Weather-strip - Google Patents

Abstract

To provide a weather-strip embedded with an insert for preventing occurrence of irregularities on an outer surface of an installation part.MEANS FOR SOLVING THE PROBLEM: A weather-strip 10 to be installed on a flange 3 formed in an opening peripheral edge 6 of a vehicle body 1, comprises: a vehicle outer side sidewall 30; a vehicle inner side sidewall 40; and installation part 20 of a substantially U-shaped cross section having a bottom wall 50 that connects the vehicle outer side sidewall 30 and the vehicle inner side sidewall 40. A holding part 25 capable of abutting on a flange 3 projecting from the vehicle outer side sidewall 30 and the vehicle inner side sidewall 40 is formed in an opening part 24 of the installation part 20. An insert 80, in which a plurality of strip-shaped skeleton piece parts 81 lie side by side at a prescribed interval in a longitudinal direction, is embedded in the installation part 20. A different material part 90 made of a material different from a member forming the installation part 20 is embedded between an outside surface 23 opposite the opening part 24 of the installation part 20 and the insert 80 or in contact with a surface on the outside surface 23 side of the insert 80.SELECTED DRAWING: Figure 3

Description

The present invention relates to a weather strip in which an insert is embedded in a mounting portion to seal between the peripheral edge of an opening of a vehicle body and a door or the like.

A weather strip is attached to the flange provided along the peripheral edge of the opening of the door or trunk of a vehicle such as an automobile, and the weather strip seals between the peripheral edge of the opening of the door or trunk and the door or trunk. It has become like.

As the above weather strip, for example, in Patent Document 1, as shown in FIG. 5, the mounting portion 200 as the weather strip 100 (referred to as “trim portion” in Patent Document 1) has a substantially U-shaped cross section. A cover lip 600 that covers the end of the interior material (not shown) is provided on one side, and a holding lip 210 is provided inside. Also referred to as "core material") is buried.

As shown in FIG. 6, the insert 800 has a so-called center bond type in which strip-shaped bone fragment portions 810 are connected in the longitudinal direction at regular intervals by connecting portions 820 at the central portion thereof.

By the way, in the mounting portion 200, the space portion 830 (the portion where the insert 800 does not exist) corresponding to the space of the insert 800 in the polymer material covering the insert 800 is a polymer as compared with the portion where the insert 800 exists. As the thickness of the material increases, the amount of expansion and contraction of the polymer material increases accordingly. For example, in a rubber material, the space portion 830 in which the insert 800 does not exist expands significantly during vulcanization after molding, and for example, in an olefin-based thermoplastic elastomer, the space portion 830 in which the insert 800 does not exist shrinks significantly after molding. As a result, the outer surface 230 of the mounting portion 200 has irregularities, which causes a problem that the appearance of the weather strip 100 is deteriorated.

Patent Document 2 discloses the following technique as a solution to the above problem. As shown in FIG. 7, the mounting portion 200 of the weather strip 100 has a vehicle outer side wall 300, a vehicle inner side wall 400, and a bottom wall 500 connecting both side walls 300 and 400, and the vehicle outer side wall 300 has a tubular shape. The hollow seal portion 700 is integrally provided, and the cover lip 600 is integrally provided on the inner side wall 400 side of the vehicle.

As shown in FIG. 8, the insert 800 (referred to as a “core material” in Patent Document 2) forms a plurality of space portions 830 at predetermined intervals in the longitudinal direction, and bones are formed between adjacent space portions 830. By leaving one portion (core material piece portion) 810, the bone fragment portions 810 and the space portions 830 are alternately provided in the longitudinal direction, and the bone fragment portions 810 are connected in the longitudinal direction by the connecting portion 820. Further, as shown in FIG. 7, the connecting portion 820 is embedded in both side walls of the vehicle outer side wall 300 and the vehicle inner side wall 400.

In the weather strip 100, the main body 710 of the tubular hollow seal portion 700 is formed of a second sponge rubber material P2 (sponge material having a specific gravity of 0.5 to 0.7), and the root portion of the tubular hollow seal portion 700 is formed. The 720 is made of a high-rigidity rubber material P4 or a high-rigidity rubber material P5 (solid rubber material having a specific gravity of 1.2 to 1.4). The high-rigidity rubber material P5 is the same as the skin material of the tubular hollow seal portion 700.

Further, the mounting portion 200 is formed by forming the inner portion and the outer portion of the vehicle inner side wall 400 from the tip portion to a range exceeding the connecting portion 820 of the insert 800 with the high-rigidity rubber material P4, whereby the tip of the vehicle inner side wall 400 is formed. The high-rigidity rubber material P4 forming the portion and its peripheral portion surrounds the connecting portion 820 of the insert 800. Here, the high-rigidity rubber material P4 has a specific gravity of 0. 7-1. It is a solid rubber material or a sponge rubber material that can secure strength (rigidity) against reaction force and deformation with respect to the flange 301 in 15.

Further, the mounting portion 200 includes a portion of the outer portion covering the outer surface of the insert 800 excluding the tip end side of the vehicle inner side wall 400 and the tip end side of the vehicle inner side wall 400 of the inner portion covering the inner surface of the insert 800. The portion excluding the above is formed of the third sponge rubber material P3. The third sponge rubber material P3 is, for example, a sponge rubber material having a specific gravity of 0.65 to 0.85.

Due to the above structure, in the portion formed of the sponge rubber material P3, the molding shrinkage amount due to the difference in the thickness dimension of the polymer material between the portion corresponding to the space portion 830 of the insert 800 and the portion corresponding to the bone fragment portion 810. The difference between the two is less likely to appear on the outer surface 230 of the mounting portion 200, and it is possible to prevent the outer surface 230 of the mounting portion 200 from having irregularities that impair the appearance. It is described that the rigidity can be appropriately secured and the holding force of the flange 301 by the holding lip 210 can be secured by forming the peripheral portion thereof.

Japanese Unexamined Patent Publication No. 2010-6243 Japanese Unexamined Patent Publication No. 2010-215149

By the way, in the above-mentioned Patent Document 2, even when the sponge rubber material P3 is formed, the thickness dimension of the polymer material between the portion corresponding to the space portion 830 and the portion corresponding to the bone fragment portion 810 of the insert 800 is determined. The effect on the outer surface 230 of the mounting portion 200 based on the difference in the amount of shrinkage during molding and the amount of expansion during vulcanization due to the difference still remains. Further, Patent Document 2 requires many kinds of materials, and has a problem in terms of cost. Further, a high-rigidity rubber material P4 is used for the portion forming the holding lip 210 and the portion covering the connecting portion 820 of the insert 800. For example, the technique of Patent Document 2 is applied to the weather strip having the insert 800 of Patent Document 1. When applied to 100, the high-rigidity rubber material P4 is used for the outer surface 230 portion, and it is not possible to prevent the occurrence of unevenness that impairs the appearance. In addition, it is difficult to handle various inserts such as inserts without a connecting portion 820.

In order to solve the above problems, the present invention of claim 1 is a weather strip attached to a flange formed on the peripheral edge of an opening of a vehicle body, wherein the weather strip includes a vehicle outer side wall, a vehicle inner side wall, and a vehicle. A mounting portion having a substantially U-shaped cross section having a bottom wall connecting the outer side wall and the inner side wall of the vehicle is provided, and the flange protruding from at least one of the outer side wall of the vehicle and the inner side wall of the vehicle can be contacted in the opening of the mounting portion. A holding portion is formed, and an insert in which a plurality of strip-shaped bone fragments are adjacent to each other at predetermined intervals in the longitudinal direction is embedded in the mounting portion, and between the outer surface and the insert on the opposite side of the opening of the mounting portion. Alternatively, the weather strip is characterized in that a different material portion made of a material different from the member constituting the mounting portion is embedded in contact with the surface on the outer surface side of the insert.
Is.

In the present invention of claim 1, an insert in which a plurality of strip-shaped bone fragments are adjacent to each other at predetermined intervals in the longitudinal direction is embedded in the mounting portion, and the outer surface and the insert are opposite to the opening of the mounting portion. Since a different material portion made of a material different from the member constituting the mounting portion is embedded in the space or in contact with the surface on the outer surface side of the insert, the portion corresponding to the space of the insert in the mounting portion ( The outer surface side of the part where the insert does not exist) is blocked by the dissimilar material part.

Therefore, it is possible to prevent the occurrence of unevenness due to the portion corresponding to the space of the insert (the portion where the insert does not exist) greatly expands or contracts toward the outer surface side due to the dissimilar material portion, and it is possible to prevent deterioration of the appearance.

According to a second aspect of the present invention, in the first aspect of the present invention, the dissimilar material portion is a film-shaped weather strip that is continuously embedded in the longitudinal direction of the mounting portion.

In the present invention of claim 2, since the dissimilar material portion is in the form of a film continuously embedded in the longitudinal direction of the mounting portion, the dissimilar material portion and the insert are co-extruded when the polymer forming the mounting portion is extruded. It is possible to efficiently manufacture weather strips.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the dissimilar material portion is a weather strip formed of a material whose melting temperature is higher than the maximum temperature at the time of manufacturing the weather strip.

In the present invention of claim 3, since the dissimilar material portion is formed of a material whose melting temperature is higher than the maximum temperature at the time of manufacturing the weather strip, the shape of the dissimilar material portion during the manufacturing of the weather strip can be maintained. As a result, the outer surface side of the portion corresponding to the space of the insert (the portion where the insert does not exist) can be blocked, the occurrence of unevenness can be prevented, and the weather strip can be efficiently manufactured.

Here, as the dissimilar material portion, as long as the melting temperature is higher than the maximum temperature at the time of molding the weather strip, the material is not limited, and various materials such as metal, resin, and rubber can be used. When the polymer forming the mounting portion is rubber, the vulcanized rubber material does not melt during vulcanization, so that it can be a different material portion.

According to a fourth aspect of the present invention, in the first to third aspects of the invention, the mounting portion is a weather strip made of a solid material or a sponge material. In the present invention of claim 4, by embedding a different material portion, even when the mounting portion is formed of a solid material or a sponge material, the outer surface side of the portion corresponding to the space of the insert (the portion where the insert does not exist) is blocked. However, it is possible to prevent the occurrence of unevenness. In addition, the rigidity of the mounting portion can be ensured, and the holding force of the holding portion on the flange can be ensured. Further, since it is not necessary to form the mounting portion with a plurality of materials in order to prevent the occurrence of unevenness, it also leads to cost reduction.

According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, the weather strip includes a cover lip extending from the bottom wall of the mounting portion to the inside of the vehicle, and the dissimilar material portion is from the outer side wall of the vehicle to the bottom wall. It is a weather strip that is continuously buried in.

In the weather strip, which has a cover lip that extends from the bottom wall of the mounting part to the inside of the car, the inner side wall of the car is invisible because it is behind the cover lip when viewed from the outer surface, and unevenness is a problem. The surface is the bottom wall and the outer wall of the car.

According to the fifth aspect of the present invention, the cover lip extending from the bottom wall of the mounting portion to the inside of the vehicle is provided, and the dissimilar material portion is continuously embedded in the bottom wall from the outer side wall of the vehicle. Can be reduced.

According to a sixth aspect of the present invention, in the first to fourth aspects of the invention, the weather strip is integrated with a cover lip extending from the bottom wall of the mounting portion to the inside of the vehicle and an outer side wall of the mounting portion. A hollow seal portion is provided, and the dissimilar material portion is a weather strip embedded in the bottom wall.

The weather strip, which has a cover lip that extends from the bottom wall of the mounting part to the inside of the car and a hollow seal that is integrated with the car's outer side wall of the mounting part, has the car's inner side wall and the car when viewed from the outer surface. The outer side wall is invisible because it is behind the cover lip and the hollow seal portion, and the outer surface where unevenness is a problem is the bottom wall portion.

In the present invention of claim 6, the weather strip includes a cover lip extending inward from the bottom wall of the mounting portion and a hollow sealing portion integrated with the vehicle outer side wall of the mounting portion, and the dissimilar material portion is the bottom. Since it is buried in the wall, the amount of different materials used can be further reduced.

A weather strip attached to a flange formed on the peripheral edge of an opening of a vehicle body, the weather strip has a substantially U cross section having a vehicle outer side wall, a vehicle inner side wall, and a bottom wall connecting the vehicle outer side wall and the vehicle inner side wall. It is provided with a shaped mounting portion, and a holding portion capable of contacting a flange protruding from at least one of the vehicle outer side wall and the vehicle inner side wall is formed in the opening of the mounting portion, and the mounting portion has a plurality of strips. Inserts with bone fragments adjacent to each other at predetermined intervals in the longitudinal direction are embedded, and the mounting portion is located between the outer surface opposite to the opening of the mounting portion and the insert, or in contact with the outer surface side surface of the insert. Since the dissimilar material portion made of a material different from the member constituting the insert is embedded, the outer surface side of the portion corresponding to the space of the insert (the portion where the insert does not exist) is blocked by the dissimilar material portion in the mounting portion.

Therefore, it is possible to prevent the occurrence of unevenness due to the portion corresponding to the space of the insert (the portion where the insert does not exist) greatly expands or contracts toward the outer surface side due to the dissimilar material portion, and it is possible to prevent deterioration of the appearance.

It is a perspective view seen from the rear with the front door of an automobile open. It is a front view of the opening trim weather strip which is an embodiment. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 2 of the opening trim weather strip of the first embodiment. 2 is a cross-sectional view taken along the line BB in FIG. 2 of the opening trim weather strip of the second embodiment. It is sectional drawing of the attachment part of the conventional weather strip (Patent Document 1). It is a perspective view of the insert embedded in the attachment part of the weather strip of FIG. It is sectional drawing of the attachment part of the conventional weather strip (Patent Document 2). It is a perspective view of the insert embedded in the weather strip of FIG.

The first embodiment of the present invention will be described with reference to FIGS. 1 to 3. The weather strip of FIG. 1 is an opening trim weather strip 10 for an automobile that seals between the front door 2 of the automobile and the door opening peripheral edge 6.

As shown in FIG. 1, the opening trim weather strip 10 of the present embodiment is mounted on the flange 3 of the door opening peripheral edge 6 on the vehicle body 1 side corresponding to the side door 2 of the vehicle body 1.

As shown in FIG. 2, the opening trim weather strip 10 is formed by connecting two members, a first opening trim weather strip 11 and a second opening trim weather strip 12, at a connecting portion 13. The first opening trim weather strip 11 is composed of a front vertical side portion 11a of a door opening, a rear upper vertical side portion 11b, and an upper side portion 11c connecting the front side vertical side portion 11a and the rear upper vertical side portion 11b. There is.

On the other hand, the second opening trim weather strip 12 is composed of a rear lower vertical side portion 12a and a lower side portion 12b of the door opening.

In the opening trim weather strip 10, the first opening trim weather strip 11 and the second opening trim weather strip 12 are each formed into a long shape having a constant cross section by an extrusion molding method, cut to a predetermined length, and the connection portion 13 is formed. After being connected by, the corner portion 14 is bent according to the shape of the door opening peripheral edge 6 on the vehicle body 1 side.

The opening trim weather strip 10 according to the first embodiment of the present invention will be described with reference to FIG. FIG. 3 is a sectional view taken along the line AA of FIG. 2 in the first opening trim weather strip 11.

The first opening trim weather strip 11 includes a mounting portion 20, a hollow seal portion 70, an insert 80, a cover lip 60, and a dissimilar material portion 90.

The mounting portion 20 has a substantially U-shaped cross section including a vehicle outer side wall 30, a vehicle inner side wall 40, and a bottom wall 50 connecting both side walls 30 and 40, and the vehicle inner side wall is on the opening 24 side. A holding lip 21 is formed from the outer side surface of the vehicle 40 toward the outer side of the vehicle and toward the bottom wall 50 side, and a protrusion 22 is formed on the outer side of the vehicle from the inner side surface of the outer side wall 30 of the vehicle. The holding lip 21 and the protrusion 22 are collectively referred to as a holding portion 25. Then, the mounting portion 20 is inserted into the flange 3 provided along the door opening peripheral edge 6 of the vehicle body 1, and the mounting portion 20 is mounted on the flange 3 by the holding portion 25. In the present embodiment, EPDM (ethylene propylene diene rubber) solid material (durometer A hardness of 60 or more) is used as the material for the mounting portion 20. When the mounting portion 20 is made of a sponge material, it is desirable that the specific gravity is 0.5 or more in consideration of the rigidity of the mounting portion 20 and the like. In order to form the sponge material, for example, the solid material described above mixed with a foaming agent can be used and foamed at the time of vulcanization.

The hollow seal portion 70 bulges and curves toward the outside of the vehicle from the root portion 72 protruding toward the inner peripheral side and the outer peripheral side of the door 2 on the vehicle outer side wall 30 of the mounting portion 20. When the door 2 is closed, the hollow seal portion 70 comes into contact with the door 2 to seal the inside and outside of the vehicle. In the present embodiment, the hollow seal portion 70 uses the same EPDM solid material as the mounting portion 20 for the root portion 72, and the EPDM sponge material for the portion that bulges and curves outward from the mounting portion 20. The hollow seal portion 70 may use a sponge material on the seal surface side and a solid material other than the seal surface side.

The cover lip 60 is formed so as to extend from the bottom wall 50 to the inside of the vehicle in a convex arc shape in the direction opposite to the hollow seal portion 70 side. When the opening trim weather strip 10 is attached to the vehicle body 1, the cover lip 60 is adapted so that its tip portion covers the end portion of an interior product such as a ceiling or garnish (not shown). In this embodiment, the cover lip 60 uses the same EPDM solid material as the mounting portion 20.

The insert 80 is a so-called center bond type in which the strip-shaped bone fragment portion 81 described in Patent Document 1 shown in FIG. 6 is connected in the longitudinal direction by a connecting portion 82 at a central portion thereof. The insert 80 formed a strip-shaped bone fragment portion 81 and a connecting portion 82 by punching out an iron metal plate. The plate thickness of the insert 80 is 0.5 mm. The plate thickness is not limited to 0.5 mm.

For the dissimilar material portion 90 in the first embodiment, polyethylene terephthalate (PET), which is a resin film having a melting temperature higher than the maximum temperature at the time of manufacturing the first opening trim weather strip 11, was used. The thickness of the PET film is about 0.1 mm. The thickness of the PET film is not limited to about 0.1 mm.

The maximum temperature during production of weather strips is, for example, around 170 ° C. during vulcanization for EPDM, which is a rubber material, and around 200 ° C. during molding, for example, for dynamically crosslinked thermoplastic elastomers (TPVs). Therefore, the resin used for the dissimilar material portion 90 is not limited to the PET as long as it does not melt at the above temperature and can maintain its shape.

For example, as the resin film applicable to the dissimilar material portion 90, other than PET, polyester resin films such as polyethylene naphthalate and modified polyester, polypropylene (PP) resin films, and polyolefin resin films such as cyclic olefin resins can be used. Vinyl-based resin films such as polyvinyl chloride and vinylidene chloride, polyether ether ketone (PEEK) resin film, polysulfone (PSF) resin film, polyether sulfone (PES) resin film, polycarbonate (PC) resin film, polyamide resin Examples thereof include a film, a polyimide resin film, an acrylic resin film, and a triacetyl cellulose (TAC) resin film.

The dissimilar material portion 90 and the insert 80 were co-extruded and embedded in the mounting portion 20 when the first opening trim weather strip 11 was extruded. In FIG. 3, EPDM constituting the mounting portion 20 exists between the dissimilar material portion 90 and the insert 80, but the dissimilar material portion 90 is co-extruded while being in contact with the insert 80, and the bones of the dissimilar material portion 90 and the insert 80 are formed. The one-sided portion 81 and the connecting portion 82 may be in contact with each other.

In FIG. 3, the dissimilar material portion 90 is on the surface of the mounting portion 20 opposite to the opening 24, that is, between the outer surface 23 and the insert 80, and is embedded in the bottom wall 50. Further, the dissimilar material portion 90 has a width H of the insert 80 in the bottom wall 50, that is, a width when the vehicle inner side surface of the vehicle inner side wall 40 of the insert 80 and the vehicle outer surface of the vehicle outer side wall 30 are extended toward the outer surface 23. It is buried over the bottom wall 50. When viewed from the outer surface 23 side, the vehicle inner side wall 40 and the vehicle outer side wall 30 cannot be seen because they are behind the cover lip 60 and the hollow seal portion 70, and the outer surface 23 has a problem of unevenness as an appearance defect. This is because it becomes the bottom wall 50.

As a result, the dissimilar material portion 90 prevents the space portion 83 of the insert 80 (the portion where the insert 80 does not exist) from being greatly expanded or contracted toward the outer surface 23, thereby preventing the appearance from being deteriorated. can do. Further, since the resin film used for the dissimilar material portion 90 can be limited to the inside of the bottom wall 50, the amount of the resin film used can be reduced.

The region forming the dissimilar material portion 90 may be buried beyond the width H or may be buried in the width H depending on the degree of occurrence of unevenness when the dissimilar material portion 90 is not present.

Next, a second embodiment of the present invention will be described with reference to FIGS. 2 and 4. FIG. 4 is a sectional view taken along the line BB of FIG. 2 in the second opening trim weather strip 12. The difference between the second embodiment and the first embodiment is that the hollow seal portion 70 of the first opening trim weather strip 11 is not formed in the second opening trim weather strip 12.

Therefore, in FIG. 4, the dissimilar material portion 90 is on the surface of the mounting portion 20 opposite to the opening 24, that is, between the outer surface 23 and the insert 80, and extends from the vehicle outer side wall 30 to the bottom wall 50 and inside the vehicle. It is embedded up to the extension line l of the insert 80 embedded in the side wall 40. Further, in the inner side wall 40 of the vehicle, as in the case of the first embodiment described above, the inside of the insert 80 is embedded in the bottom wall 50 when the inside of the vehicle is extended toward the outer surface side. This is because when viewed from the outer surface 23 side, the vehicle inner side wall 40 is invisible because it is behind the cover lip 60, and the outer surface 23, which has a problem of unevenness as an appearance defect, is the bottom wall 50 and the vehicle outer side wall 30. Because it becomes.

As a result, the dissimilar material portion 90 prevents the space portion 83 of the insert 80 (the portion where the insert 80 does not exist) from being greatly expanded or contracted toward the outer surface 23, thereby preventing the appearance from being deteriorated. can do.

The region forming the dissimilar material portion 90 in the bottom wall 50 may be buried from the extension line l to the inside of the vehicle depending on the degree of occurrence of unevenness when the dissimilar material portion 90 is not present, or the vehicle from the extension line l. It may be buried outside.

The practice of the present invention is not limited to the above embodiment, and various modifications can be made as long as the object of the present invention is not deviated.

For example, in the present embodiment, the opening trim weather strip attached to the flange portion of the front door opening peripheral edge of the vehicle body has been described, but the opening trim weather strip is attached to various opening peripheral edges of the vehicle body such as the rear door opening and the trunk opening. Can be applied to weather strips that are made.

For example, in the present embodiment, the first opening trim weather strip 11 and the second opening trim weather strip 12 having different cross-sectional structures are used and connected at the connection portion 13, but only the first opening trim weather strip 11 is used. For example, the door opening may be formed in an annular shape according to the shape of the peripheral edge 6 and both ends thereof may be connected to each other.

For example, in the present embodiment, an iron metal plate is used as the insert 80, but it may be formed of a metal other than iron or a resin material harder than the material covering the insert.

For example, in the present embodiment, a so-called center bond type insert is used as the insert 80, but a type in which the connecting portion shown in Patent Document 2 is not located in the central portion of the insert or a so-called separation type insert having no connecting portion is used. You may use it.

For example, in the present embodiment, the resin film is used as the material for forming the dissimilar material portion 90, but a metal film such as stainless steel, aluminum, or steel, or a rubber film (sheet) may be used. Further, in consideration of the adhesiveness between the polymer constituting the mounting portion 20 and the dissimilar material portion 90, a film (sheet) having an adhesive layer formed on the surface of the film (sheet) may be used.

For example, in the present embodiment, EPDM is used as the rubber material as the material constituting the opening trim weather strip 10, but it may be formed of a thermoplastic elastomer, a soft synthetic resin, or the like. As the thermoplastic elastomer, an olefin-based thermoplastic elastomer (TPO) or a dynamically crosslinked thermoplastic elastomer (TPV) is desirable from the viewpoints of weather resistance, recycling, cost and the like.

1 Car body 2 Door 3 Flange 6 Door opening peripheral edge 10 Opening trim weather strip 11 1st opening trim weather strip 12 2nd opening trim weather strip 20 Mounting part 23 Outer surface 24 Opening 25 Holding part 30 Car outer side wall 40 Car inner side wall 50 bottom wall
60 Cover lip 70 Hollow seal part 80 Insert 81 Bone fragment part 82 Connection part 83 Space part 90 Dissimilar material part

Claims (6)

A weather strip that is attached to a flange formed on the periphery of the opening of the car body.
The weather strip is
On the outer side wall of the car,
On the inner side wall of the car,
A mounting portion having a substantially U-shaped cross section having a bottom wall connecting the outer side wall of the vehicle and the inner side wall of the vehicle is provided.
In the opening of the mounting portion, a holding portion capable of contacting the flange protruding from at least one of the vehicle outer side wall and the vehicle inner side wall is formed.
An insert in which a plurality of strip-shaped bone fragments are adjacent to each other at predetermined intervals in the longitudinal direction is embedded in the mounting portion.
A different material made of a material different from the member constituting the mounting portion, which is in contact with the outer surface of the mounting portion opposite to the opening and the insert, or in contact with the surface of the insert on the outer surface side. A weather strip characterized by the fact that the part is buried. The weather strip according to claim 1, wherein the dissimilar material portion is in the form of a film continuously embedded in the longitudinal direction of the mounting portion. The weather strip according to claim 1 or 2, wherein the dissimilar material portion is formed of a material whose melting temperature is higher than the maximum temperature at the time of manufacturing the weather strip. The weather strip according to any one of claims 1 to 3, wherein the mounting portion is made of a solid material or a sponge material. The weather strip comprises a cover lip extending inward from the bottom wall of the mounting portion.
The weather strip according to any one of claims 1 to 4, wherein the dissimilar material portion is continuously embedded in the bottom wall from the outer side wall of the vehicle. The weather strip has a cover lip extending from the bottom wall of the mounting portion to the inside of the vehicle.
A hollow seal portion integrated with the vehicle outer side wall of the mounting portion is provided.
The weather strip according to any one of claims 1 to 4, wherein the dissimilar material portion is embedded in the bottom wall.

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