JP2010047157A - Weather strip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip for an automobile which meets the need for the weight reduction of the automobile without using any insert, and has a large holding force of a flange of an automobile body. <P>SOLUTION: The weather strip 10 comprises a trim 20 and a hollow seal 40. The trim 20 has a substantially U-shaped section composed of an exterior sidewall 21, a bottom wall 23, and an interior sidewall 22. Flange holding lips extend from inner sides of the exterior sidewall and the interior sidewall, respectively, inside the trim 20, and covers 21b, 22b are formed on outer surfaces of the exterior sidewall 21 and the interior sidewall 22. A material forming the covers 21b, 22b contains small volume of oil smaller than that of a material forming the exterior sidewall 21, the bottom wall 23, and the interior sidewall 22. The exterior sidewall 21, the bottom wall 23, the interior sidewall 22, and the cover parts 21b, 22b are formed of solid materials or fine foam materials composed of rubber or thermoplastic elastomers. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a weather strip for an automobile that is mounted on a flange or the like at the periphery of a vehicle body opening of an automobile.

An automobile has openings such as a door opening and a trunk room opening, and weather strips are attached to the periphery of each vehicle body opening to seal between the periphery of the vehicle body opening and a mating member such as a door or a trunk lid. .
When these weather strips are attached to the periphery of the vehicle body opening, they are attached by inserting a flange at the periphery of the vehicle body opening into the trim portion of the weather strip.

For example, as shown in FIG. 4, the seal of the opening of the rear trunk of the automobile is attached to the flange 7 provided at the front end of the vehicle body opening peripheral edge 6 of the automobile body corresponding to the periphery of the lid of the rear trunk. A strip 110 is mounted.
The weather strip 110 is formed of a trim portion 120 attached to the flange 7 and a hollow seal portion 140 which is in contact with the back surface of the trunk lid 2 and seals the space therebetween.

The trim portion 120 includes a vehicle outer side wall 121, a vehicle inner side wall 122, and a bottom wall 123. The trim portion 120 is formed in a substantially U-shaped cross section, and in order to reinforce the holding of the flange 7, A sheet metal insert 129 is embedded.
In the inside of the substantially U-shaped cross section, the vehicle outer side flange holding lips 124 and 125 and the vehicle inner side flange holding lips 126 and 127 from the inner surfaces of the vehicle outer side wall 121 and the vehicle inner side wall 122 are respectively formed in the trim section 120 in a cross-sectionally C shape. The flange 7 is held extending toward the bottom wall 123 side.

  In order to attach the weather strip 110 to the flange 7, the front end of the flange 7 provided around the opening of the rear trunk is inserted into the trim portion 120. The trim portion 120 is provided with vehicle outer flange holding lips 124 and 125 and vehicle inner flange holding lips 126 and 127. The holding force is reinforced by the insert 129, and the flange holding lips 124, 125, 126 and 127 are used. The flange 7 is held and sealed to maintain the posture of the weather strip 110 and prevent the flange 7 from coming off. At this time, the hollow seal portion 140 is in contact with the outer peripheral end portion of the back surface of the trunk lid 2 to seal between the vehicle body opening peripheral edge 6 and the trunk lid 2.

  However, the insert 129 is often made of metal in order to enhance the holding force of the trim portion 120, which increases the overall weight of the weather strip 110, which is preferable for the needs for weight reduction of automobiles. There wasn't.

  For this reason, as shown in FIG. 5, the metal side insert 221, the vehicle interior side wall 222, and the bottom wall 223 are not embedded in the trim portion 220 of the weather strip 210 having the hollow seal portion 240. Is formed of a hard rubber material or a high-hardness resin material (for example, see Patent Document 1).

Similarly, as shown in FIG. 6, in order to increase the fitting force with the flange, the main body 311 of the weather strip 310 is formed of a material with a large shrinkage rate, and the surface 313 of the seal lip 312 is made of a material with a small shrinkage rate. (For example, refer to Patent Document 2). However, in this case, a material having a large shrinkage ratio uses hard rubber, and a material having a small shrinkage ratio uses soft rubber. For this reason, it was not possible to sufficiently cope with the change with time of the material, there was little room for selection of the material, and the holding force of the main body 311 of the weather strip 310 was not sufficient.
Japanese Patent No. 3752637 JP 63-34259 A

  Accordingly, an object of the present invention is to provide an automotive weather strip that does not use an insert, and that has a greater gripping force on the flange portion of the vehicle body in response to the need for weight reduction of the vehicle.

In order to solve the above-mentioned problem, the present invention of claim 1 is a weather strip for an automobile which is attached to a flange at the periphery of a vehicle body opening and seals between the periphery of the vehicle body opening and a mating member.
The weather strip is attached to the flange to hold the weather strip, and has a substantially U-shaped cross section. The weather strip is integrally formed with the trim portion and comes into contact with the mating member so that the periphery of the vehicle body opening and the mating member A hollow seal portion for sealing between
The trim part has a substantially U-shaped cross section consisting of a vehicle outer side wall, a bottom wall and a vehicle inner side wall, and a flange holding lip extends from the inner surface of the vehicle outer side wall and the vehicle inner side wall inside the trim part,
The cover part is formed on the outer surface of the vehicle outer side wall and the vehicle inner side wall, and the material forming the cover part is formed of a material having less oil content than the material forming the vehicle outer side wall, the bottom wall and the vehicle inner side wall,
The vehicle outer side wall, the bottom wall, the vehicle inner side wall, and the cover portion are automobile weather strips formed of a solid material or fine foam material of rubber or thermoplastic elastomer.

  In the first aspect of the present invention, the weather strip is attached to the flange to hold the weather strip, and has a substantially U-shaped cross section. The trim is integrally formed with the trim portion and comes into contact with the mating member. A hollow seal portion that seals between the periphery of the opening and the counterpart member is provided. For this reason, a weather strip can be hold | maintained and fixed by attaching a trim part to a vehicle body opening part periphery. And the attitude | position is hold | maintained so that a weather strip may not fall down with the attached trim part, and a hollow seal part can contact | abut to a counterpart member reliably and can seal between a vehicle body opening part periphery and a counterpart member. .

  The trim part has a substantially U-shaped cross section consisting of a vehicle outer side wall, a bottom wall and a vehicle inner side wall, and a flange holding lip extends from the inner surface of the vehicle outer side wall and the vehicle inner side wall inside the trim part. . Therefore, the weather strip can be stably held by the flange holding lip on the outer side of the vehicle and the flange holding lip on the inner side of the vehicle, and the weather strip can be mounted with the rigid, substantially U-shaped trim portion.

  The cover part is formed on the outer surface of the vehicle outer side wall and the vehicle inner side wall, and the material forming the cover part is formed of a material having less oil content than the material forming the vehicle outer side wall, the bottom wall and the vehicle inner side wall. . For this reason, with the passage of time, an oil transition occurs from a material with a high oil content to a material with a low oil content, and the volume of the material with a low oil content increases so that the vehicle outer side wall and the vehicle inner side wall are separated. It can be deformed in the internal direction, that is, in the direction of sandwiching the flange. Then, as the time elapses, the force with which the trim portion clamps the flange increases, and the weather strip does not fall out of the flange.

  The outer side wall, bottom wall, inner side wall and cover part are made of solid or fine foam material of rubber or thermoplastic elastomer, so the rigidity of the entire trim part becomes high and flanges can be inserted without embedding the insert. The power to pinch is great. Extrusion molding of rubber or thermoplastic elastomer solid material or fine foam material without an insert makes extrusion easy and high productivity. Since there is no insert, the weight of the weatherstrip can be reduced.

  According to a second aspect of the present invention, the cover portion is a weather strip for an automobile in which the thickness increases as it goes to the tip of the vehicle outer side wall and the vehicle inner side wall.

  In the present invention of claim 2, since the thickness of the cover portion increases toward the tips of the vehicle outer side wall and the vehicle inner side wall, the vehicle outer side increases as time passes and toward the tip of the vehicle outer side wall and the vehicle inner side wall. The degree of deformation of the side wall and the vehicle inner side wall in the inner direction is increased, and the flange can be clamped more strongly.

  According to a third aspect of the present invention, there is provided a weather strip for an automobile in which the material forming the cover portion is formed of a material having an oil content of 10% or less than the material forming the vehicle outer side wall, the bottom wall and the vehicle inner side wall. is there.

  According to the third aspect of the present invention, the material forming the cover portion is formed of a material having an oil content of 10% or more lower than the material forming the vehicle outer side wall and the bottom wall and the vehicle inner side wall. The amount of oil transferred from the material that forms the wall and the vehicle interior side wall to the material that forms the cover is increased, and the degree of deformation of the exterior side wall and the vehicle interior side wall increases inward, and the flange is pinched more strongly. Can do.

  The present invention of claim 4 is an automobile weather strip in which the oil is a process oil.

  In the present invention of claim 4, since the oil is a process oil, it is possible to easily achieve the present invention without requiring any special material by changing the amount of the process oil used for rubber or the like. it can.

  According to the present invention of claim 5, the weather strip is an automotive weather strip formed of EPDM rubber or olefin-based thermoplastic elastomer.

  In the present invention of claim 5, the weather strip is formed of EPDM rubber or olefinic thermoplastic elastomer. For this reason, the cover portion and the vehicle inner side wall, the vehicle outer side wall and the bottom wall can be co-extruded using the same type of material, regardless of whether they are formed of EPDM rubber or olefinic thermoplastic elastomer. A product with good weather resistance can be obtained. Moreover, since it is the same olefin resin / rubber, it can be recycled without separation, and an easily recyclable product can be obtained.

  According to the present invention of claim 6, the weather strip is an automotive weather strip which is a trunk weather strip or a back door weather strip.

  In the present invention of claim 6, since the vehicle body opening / closing member is a door, and the weather strip is a trunk weather strip or a back door weather strip, and between the trunk and the trunk lid, and the vehicle body opening periphery. Rain water and dust entering from between the back door can be reliably sealed, and noise entering the vehicle can be reliably prevented.

  In the present invention, the cover portion is formed on the outer surfaces of the vehicle outer side wall and the vehicle inner side wall, and the material forming the cover portion is a material having less oil content than the material forming the vehicle outer side wall, the bottom wall and the vehicle inner side wall. As the time passes, the oil shifts from a material with a high oil content to a material with a low oil content, and the material with a low oil content increases in volume, The inner side wall of the vehicle can be deformed in the inner direction, i.e., the direction in which the flange is clamped. The trim portion increases the force of clamping the flange, and the weather strip does not fall out of the flange.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows an embodiment of the present invention, and is a cross-sectional view of a weather strip 10 when mounted on a vehicle body. FIG. 2 shows an embodiment of the present invention, and is applied to the vehicle body. It is sectional drawing of the weather strip 10 which changed with time after mounting | wearing of each, and is sectional drawing along the AA line of FIG. 3, respectively. FIG. 3 is a schematic perspective view seen from the upper left of the automobile, and shows the relationship between the vehicle body opening peripheral edge 6 of the automobile and the trunk lid 2 in the rear trunk.
The embodiment of the present invention will be described by taking a weather strip 10 attached to a rear trunk as an example. However, the present invention is widely used for an automobile opening such as a back door weather strip, an automobile door opening, and a roof opening. Can be used for weather strips to seal.

As shown in FIG. 1, the weather strip 10 according to the embodiment of the present invention is formed of a trim portion 20 attached to the flange 7 and a hollow seal portion 40 that contacts and seals the trunk lid 2.
The trim portion 20 has a substantially U-shaped cross section including a vehicle outer side wall 21, a vehicle inner side wall 22, and a bottom wall 23. Inside the vehicle outer side wall 21, the vehicle inner side wall 22, and the bottom wall 23, inserts made of bone pieces such as metal plates are not embedded, but are formed of a solid material or a fine foam material of rubber or thermoplastic elastomer. Yes.

  The vehicle outer side wall 21, the vehicle inner side wall 22 and the bottom wall 23 of the weather strip 10 are preferably formed of EPDM rubber or an olefinic thermoplastic elastomer. Whether the fine foam material or the solid material is formed of either EPDM rubber or olefinic thermoplastic elastomer, a product having good weather resistance can be obtained. Moreover, since it is the same olefin resin / rubber, it can be recycled without separation, and an easily recyclable product can be obtained.

  When the vehicle outer side wall 21, the bottom wall 23, and the vehicle inner side wall 22 are formed of a solid material or a fine foam material of rubber or thermoplastic elastomer, the rigidity of the entire trim portion 20 is increased, and the insert is embedded. Even if not, the force which clamps the flange 7 with the vehicle outer side wall 21 and the vehicle inner side wall 22 is large. In addition, since a solid material or fine foamed material of rubber or thermoplastic elastomer is extruded without an insert, extrusion is easy and productivity is high.

  The outer side wall 21, the bottom wall 23, and the inner side wall 22 of the weather strip 10 are preferably formed of EPDM rubber or olefin-based thermoplastic elastomer, and the hardness thereof is an IRHD hardness of 70 to 90 degrees. Or it is preferable to form with a fine foam material. In this case, even when the flange 7 is bent along the vehicle body, it is possible to have flexibility that can follow the bending and sufficient rigidity to hold the flange 7.

A vehicle outer side wall cover portion 21b and a vehicle inner side wall cover portion 22b are formed on the outer surfaces of the vehicle outer side wall 21 and the vehicle inner side wall 22, respectively.
The vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b are formed of EPDM rubber or olefin thermoplastic elastomer which is the same olefin-based material as the vehicle outer side wall 21, the vehicle inner side wall 22, and the bottom wall 23. It is preferable. When formed with the same material, when the weather strip 10 is formed, it is easy to perform co-extrusion molding, and the two are bonded well.

  The material that forms the vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b is formed of the same material, but the material that forms the vehicle outer side wall 21, the vehicle inner side wall 22, and the bottom wall 23 described above. It is formed of a material having a lower oil content. For this reason, with the passage of time, oil shifts from a material with a high oil content to a material with a low oil content. As shown in FIG. 2, the volume of the material having a low oil content, that is, the vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b is increased, and the vehicle outer side wall 21 and the vehicle inner side wall 22 are moved in the inner direction, that is, The flange 7 can be deformed in the clamping direction. Then, as time elapses, the force that causes the trim portion 20 to clamp the flange 7 increases, and the weather strip 10 does not fall out of the flange 7.

  The oil used for the vehicle outer side wall 21, the vehicle inner side wall 22, the bottom wall 23, the vehicle outer side wall cover portion 21b, and the vehicle inner side wall cover portion 22b is usually a process oil used for rubber, thermoplastic elastomer or the like. be able to. In this case, the amount of oil contained in each material can be easily changed by changing the amount of the process oil, and the physical properties of the material are not affected.

  The vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b are preferably formed such that the thickness increases toward the tips of the vehicle outer side wall 21 and the vehicle inner side wall 22, that is, in the opening direction. With this formation, the degree of deformation of the vehicle outer side wall 21 and the vehicle inner side wall 22 in the inner direction increases with the passage of time as it goes to the tips of the vehicle outer side wall 21 and the vehicle inner side wall 22. Can be pinched.

  The material forming the vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b is preferably formed of a material having an oil content of 10% or less than the material forming the vehicle outer side wall 21 and the vehicle inner side wall 22. If the oil content is less than 10%, the amount of oil transferred from the material forming the vehicle outer side wall 21 and the vehicle inner side wall 22 to the material forming the vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b increases. The vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b are increased in volume, and the degree of deformation of the vehicle outer side wall 21 and the vehicle inner side wall 22 inward is increased, and the flange 7 is clamped more strongly. Can do.

  If the difference in oil content is not more than 10%, the amount of oil transferred from the vehicle outer side wall 21 and the vehicle inner side wall 22 to the vehicle outer side wall cover portion 21b and the vehicle inner side wall cover portion 22b cover portion decreases, and the vehicle outer side wall 21 is reduced. And the deformation of the vehicle interior side wall 22 is reduced, and the force for clamping the flange 7 is reduced.

On the inner surface of the vehicle outer side wall 21, as in the conventional case, a first vehicle outer flange holding lip 24 and a second vehicle outer flange holding lip 25 are arranged in an obliquely upward direction toward the inside of the substantially U-shaped cross section in order from the opening side. The first vehicle inner flange holding lip 26 and the second vehicle inner flange holding lip 27 are formed on the inner surface of the vehicle inner side wall 22 in an oblique direction toward the inside of the substantially U-shaped cross section.
For this reason, when the weather strip 10 is attached to the flange 7, the flange 7 can be stably held by the two outside flange holding lips 24, 25 and the inside flange holding lips 26, 27.

  In this embodiment, the vehicle outer side flange holding lips 24, 25 and the vehicle inner side flange holding lips 26, 27 are formed of the same material as the vehicle outer side wall 21, the vehicle inner side wall 22, and the bottom wall 23. The lips 24, 25 and the vehicle inner side flange holding lips 26, 27 may be formed of a material whose hardness is lower than the material of the vehicle outer side wall 21, the bottom wall 23 and the vehicle inner side wall 22. In this case, when the vehicle outer side wall 21 and the vehicle inner side wall 22 are deformed inward, the vehicle outer flange holding lips 24, 25 and the vehicle inner flange holding lips 26, 27 abut on the flange 7 flexibly. Even if there are irregularities on the surface, the flange 7 can be securely held.

  In this case, the vehicle outer flange holding lips 24, 25 and the vehicle inner flange holding lips 26, 27 can be manufactured with IRHD hardnesses of 60 degrees to 70 degrees. In this case, even if there is unevenness on the surface of the flange 7, it has sufficient flexibility to be able to flexibly contact the flange 7 and can have sufficient rigidity to hold the flange 7. .

  It is possible to form a body seal lip 28 which is relatively thick and has a substantially uniform thickness as a whole from the vicinity of the front end of the outer surface on the opening side of the vehicle outer side wall 21 and is made of a sponge material. In that case, when the body seal lip 28 comes into contact with the peripheral edge 6 of the vehicle body opening, its tip can be brought into line contact, and the force that the tip presses is large, and the sealing performance is good. Accordingly, rainwater, dust, noise and the like are prevented from entering the vehicle interior from the trim portion 20 through the flange 7 from the vehicle body opening periphery 6 and the space between the vehicle body opening periphery 6 and the weather strip 10 is sealed. be able to.

Further, when the body seal lip 28 is formed with substantially the same thickness from the base to the tip, the elasticity of the body seal lip 28 is improved when the tip of the body seal lip 28 comes into contact with the peripheral edge 6 of the vehicle body opening. Thus, the force with which the front end presses the vehicle body opening peripheral edge 6 is strong, and the sealing property is good.
The vicinity of the vehicle outer side wall 21 is made of solid rubber, and the tip side from the vicinity of the center is made of sponge material. Therefore, the flexibility of the body seal lip 28 is increased, and the sealing performance can be ensured by following the unevenness and deformation of the vehicle body opening periphery 6.

A cover seal lip 29 is formed at the lower portion of the inner side wall 22 of the vehicle interior side wall so as to curve downward in the vehicle interior direction. After the weather strip 10 is mounted on the flange 7, the cover seal lip 29 is disposed so as to cover ends of a garnish (not shown), a panel (not shown) and the like provided in the passenger compartment. While sealing between the strip 10 and garnish, a panel, etc., the gap is covered and the appearance is good.
When the cover seal lip 29 is formed of a sponge material, the flexibility is improved, and the sealing performance can be secured by following the change in the gap between the garnish and the panel.

  As shown in FIG. 1, a caulking member 50 may be attached to the inner surface of the bottom wall 23 inside the trim portion 20. In this case, the sealing performance can be improved by inserting the tip of the flange 7 into the caulking member 50.

  A hollow seal portion 40 is formed on the outer surface of the bottom wall 23 of the trim portion 20 so as to face upward. The hollow seal portion 40 can be formed of a sponge material in a hollow shape having a substantially rhombus, oval or substantially circular cross section. Since it is hollow, it has flexibility, and when the trunk lid 2 is closed, the hollow seal portion 40 does not deform abnormally as compared with the lip shape, and reliably hits the predetermined position of the trunk lid 2. Touch and seal. Further, when the cross section of the hollow seal portion 40 is substantially rhombus or oval, when the tip of the hollow seal portion 40 comes into contact with the trunk lid 2, the bulging portion of the central portion of the approximately rhombus or oval is bent and bent. And can be contacted flexibly.

  In addition, when the hollow seal portion 40 is formed of a sponge material, when the hollow seal portion 40 comes into contact with the trunk lid 2 that is a mating member to be sealed, the hollow seal portion 40 has a large flexibility and can be reliably used according to the shape of the trunk lid 2. The tip can come into contact with the surface, and the sealing performance is high.

When the trim portion 20 is attached to the flange 7, as described above, the trim strip 20 is held by the vehicle outer flange holding lips 24, 25 and the vehicle inner flange holding lips 26, 27, and the weather strip 10 is stabilized in posture. Held.
Then, the hollow seal portion 40 integrally formed on the upper portion of the outer surface of the trim portion 20 is surely brought into contact with the back surface of the trunk lid 2 and seals between the trunk lid 2 and the vehicle body opening peripheral edge 6. Can do.

  Sponge materials such as the hollow seal portion 40, the body seal lip 28, and the cover seal lip 29 can be formed of a rubber foam having a specific gravity of 0.3 to 0.6. In this case, since it is formed of a rubber foam having a specific gravity of 0.3 to 0.6, the weight of the weather strip 10 can be reduced, and it is rich in elasticity and flexibility and can be sealed even after long-term use. Sex can be secured.

  The hollow seal portion 40 is formed from the vicinity of the center portion of the outer surface of the bottom wall 23 through the neck portion 41. Since the hollow seal portion 40 is formed via the neck portion 41, the hollow seal portion 40 can be freely deformed and sealed according to the shape of the mating member. The neck portion 41 can be formed of a solid material. In this case, the rigidity of the neck portion 41 is high, the position of the hollow seal portion 40 is stable, and when the hollow seal portion 40 comes into contact with the vehicle body opening edge 6 or the mating member, the contact position is stable, and the sealing property Can be secured.

  In the molding of the weather strip 10 of the present invention, synthetic rubber and thermoplastic elastomer are used. For example, EPDM rubber can be used for synthetic rubber, and polyolefin-based elastomer can be used for thermoplastic elastomer. When EPDM rubber and olefinic thermoplastic elastomer are used, co-extrusion molding can be performed using the same type of material, and a product with good weather resistance can be obtained. Moreover, since it is the same olefin resin / rubber, it can be recycled without separation, and an easily recyclable product can be obtained.

The straight portion of the weather strip 10 is formed by an extruder and then cut into a predetermined length to be manufactured. The portion to be attached to the corner portion is formed by molding, and the straight portions are simultaneously connected by molding.
In the case of synthetic rubber, it is conveyed to a vulcanizing tank after extrusion and heated by hot air or high frequency to vulcanize. In the case of a thermoplastic elastomer, it is cooled and solidified.

FIG. 4 shows an embodiment of the present invention, and is a cross-sectional view when a weather strip is mounted on a vehicle body, and is a cross-sectional view along the line AA in FIG. 3. FIG. 4 shows an embodiment of the present invention, and is a cross-sectional view when a weather strip is attached to a vehicle body and changes with time, and is a cross-sectional view along the line AA in FIG. 3. It is a schematic perspective view seen from diagonally above the automobile It is sectional drawing of the conventional weather strip. It is sectional drawing of the other conventional weather strip. It is sectional drawing of the other conventional weather strip.

Explanation of symbols

2 Trunk lid 6 Car body opening periphery 7 Flange 10 Weather strip 20 Trim part 21 Car outer side wall 21b Car outer side wall cover part 22 Car inner side wall 22b Car inner side wall cover part 23 Bottom wall 40 Hollow seal part

Claims (6)

In an automobile weather strip that is attached to a flange on the periphery of the vehicle body opening and seals between the periphery of the vehicle body opening and the mating member,
The weather strip is attached to the flange to hold the weather strip, and has a substantially U-shaped cross section. And a hollow seal portion for sealing between the mating member and
The trim part has a substantially U-shaped cross section comprising an outer side wall, a bottom wall and an inner side wall, and a flange holding lip extends from the inner surface of the outer side wall and the inner side wall inside the trim part. And
A cover portion is formed on the outer surface of the vehicle outer side wall and the vehicle inner side wall, and the material forming the cover portion is formed of a material having less oil content than the material forming the vehicle outer side wall, the bottom wall and the vehicle inner side wall. And
The automobile weather strip, wherein the vehicle outer side wall, the bottom wall, the vehicle inner side wall and the cover portion are formed of a solid material or a fine foam material of rubber or thermoplastic elastomer.   The automotive weather strip according to claim 1, wherein the cover portion increases in thickness as it goes to a tip of the vehicle outer side wall and the vehicle inner side wall.   The material for forming the cover is made of a material having an oil content of 10% or more lower than that of the material forming the vehicle outer side wall, bottom wall and vehicle inner side wall. Weather strip.   4. The automobile weather strip according to claim 1, wherein the oil is a process oil.   The automobile weather strip according to any one of claims 1 to 4, wherein the weather strip is formed of an EPDM rubber or an olefin-based thermoplastic elastomer.   The automobile weather strip according to any one of claims 1 to 5, wherein the weather strip is a trunk weather strip or a back door weather strip.

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