JP2010100792A - Sealant member for weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealant member of small specific gravity for automobile weather strip. <P>SOLUTION: The non-drying sealant member 70, used for the weather strip 10 such as an opening weather strip etc. for sealing a space between automobile door 2 and the periphery 6 of an opening of an automobile body, is made by mixing a foam resin powder in a rubber-based or synthetic resin-based fundamental material having at least stickiness. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sealant member used for a weather strip for an automobile that seals between a vehicle body opening / closing member for opening / closing a vehicle body opening such as an automobile door, luggage, sliding roof, and the periphery of the vehicle body opening. .

  Hereinafter, the present invention will be described with reference to an example of a sealant member for an opening trim weather strip used for sealing an automobile door 2 and a vehicle body opening peripheral edge 6 as shown in FIG. It can also be used in the same manner for a weather strip sealant member used for sealing a vehicle body opening / closing member that opens and closes a vehicle body opening such as a sliding roof.

Conventionally, as shown in FIG. 4, the seal between the door 2 and the vehicle body opening peripheral edge 6 includes a door weather strip 160 attached to an outer retainer such as a door frame in the door 2, and an inner periphery of the door frame. The glass run 150 is attached to the channel 3 and the opening trim weather strip 110 is attached to the flange 7 at the periphery 6 of the vehicle body opening.
The flange 7 is formed by joining the outer panel 9 defining the vehicle body opening peripheral edge 6 and the tip of the inner panel 8 inside the vehicle by welding or the like.

  An opening trim weather strip 110 attached to the flange 7 is provided in the opening of the vehicle body, and the door 2 and the vehicle body opening are located further inside the vehicle than the portion where the door weather strip 160 seals the periphery 6 of the vehicle body opening. The space between the peripheral edges 6 is sealed. The opening trim weather strip 110 is attached to the flange 7 by an attachment base portion (trim portion) 120 having a substantially U-shaped cross section, and the hollow seal portion 130 contacts and swells the bulging portion 2a of the door frame. The trim portion 120 includes a holding lip 125 in which an insert member 124 such as a metal insert is embedded to hold the flange 7.

  As described above, the flange 7 is formed by joining the outer panel 9 defining the periphery of the vehicle body opening and the tip of the inner panel 8 inside the vehicle by welding or the like. The panel 9 and the inner panel 8 form a cavity outside the flange 7. Through this cavity, wind noise, tire noise, road surface reflection noise, and other noises are transmitted over the entire periphery of the opening of the vehicle body, but the flange 7 is uneven by spot welding and the unevenness of the sheet metal at the end of the flange 7. Creates a gap. The above noise leaks from this gap and is transmitted into the vehicle.

In order to prevent the noise leaking from the flange 7 and rainwater, dust and noise entering the vehicle from the outside of the vehicle via the inside of the trim part 120 of the opening trim weather strip 110, and to prevent the end surface of the flange 7 from being rusted. In some cases, a non-drying sealant member 170 having high viscosity is sealed inside the trim portion 120 (see, for example, Patent Document 1).
However, since the sealant member 170 has been mixed with a mineral substance as a filler in order to maintain physical properties, the weight of the sealant member 170 as a whole increases, and the request for weight reduction of the vehicle cannot be satisfied. That is, mineral substances often have a specific gravity of 2 or more, and the specific gravity of the sealant member 170 as a whole is increased to about 1.5.
Japanese Utility Model Publication No. 50-42291

  Therefore, an object of the present invention is to provide a sealant member having a small specific gravity for an automobile weather strip.

In order to solve the above-mentioned problem, the present invention of claim 1 is a non-drying sealant member used for a weather strip that seals between a vehicle body opening / closing member of a vehicle and a periphery of the vehicle body opening of a vehicle.
The sealant member is a sealant member for a weather strip, in which a foamed resin powder is mixed in at least an adhesive base material.

  In the first aspect of the present invention, in the sealant member, a foamed resin powder is mixed in at least an adhesive base material. For this reason, the specific gravity of the sealant member can be greatly reduced while maintaining the viscosity of the sealant member, which can contribute to the weight reduction of the vehicle. Since the foamed resin is a powder, it can be uniformly dispersed in the base material.

  In the present invention of claim 2, the base material is butyl rubber, ethylene-propylene rubber, polyisobutylene rubber, natural rubber, isoprene rubber, styrene-isoprene rubber, polybutene resin, acrylic, silicone resin. Is a sealant member for weatherstrips containing at least two of any one of an ethylene-vinyl acetate copolymer system.

  In the present invention of claim 2, the base material is butyl rubber, ethylene-propylene rubber, polyisobutylene rubber, natural rubber, isoprene rubber, styrene-isoprene rubber, polybutene resin, acrylic, silicone resin. Since it contains any two or more of an ethylene-vinyl acetate copolymer system, it can have sufficient adhesiveness, soundproofing, and rustproofing.

  The present invention of claim 3 is a sealant for a weather strip, wherein the sealant member contains at least one of calcium carbonate, calcium silicate, magnesium silicate, silicon dioxide, zinc white, titanium white, and clay as a filler. It is a member.

  In the present invention of claim 3, since the sealant member contains any one or more of calcium carbonate, calcium silicate, silicate mass magnesium, silicon dioxide, zinc white, titanium white, and clay as a filler, the sealant member is reinforced. And processability can be improved.

  The present invention of claim 4 is a sealant member for a weather strip, wherein the sealant member contains at least one of a petroleum solvent, liquid polybutene, mineral oil, liquid polyisobutylene, and liquid polyacrylate as a softening agent. is there.

  In the present invention of claim 4, since the sealant member contains at least one of a petroleum solvent, liquid polybutene, mineral oil, liquid polyisobutylene, and liquid polyacrylate as a softening agent, the sealant member has an appropriate softness. It is easy to fill the trim portion of the weather strip.

The weather strip used in the present invention according to claim 5 is integrally formed with a mounting base attached to a flange provided on one of the vehicle body opening / closing member and the vehicle body opening peripheral member, and the mounting base. A seal portion that is attached and seals between the vehicle body opening / closing member and the vehicle body opening / closing member in contact with the vehicle body opening / closing periphery or the vehicle body opening / closing member that is the other member;
The mounting base has a substantially U-shaped cross section or a substantially J-shaped cross section formed from the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, and the sealant member is formed on the inner surface of the mounting base having a substantially U-shaped cross section or a substantially J-shaped cross section. A weatherstrip sealant member that is attached and has a flange end inserted into the sealant member.

  The weather strip used in the present invention according to claim 5 includes an attachment base (trim portion) attached to a flange provided on any one member of a vehicle body opening / closing member or a vehicle body opening periphery of an automobile, A seal portion that is integrally attached to the mounting base and contacts the vehicle body opening periphery or the vehicle body opening / closing member that is the other member, and seals between the vehicle body opening / closing member and the vehicle body opening periphery. Have. For this reason, when the attachment base is attached to the outer periphery of the door frame or the periphery of the vehicle body opening, the seal portion comes into contact with the periphery of the vehicle body opening or the vehicle body opening / closing member when the vehicle body opening / closing member is closed. And the periphery of the opening of the vehicle body can be sealed.

  The mounting base portion (trim portion) has a substantially U-shaped or substantially J-shaped cross section formed from the vehicle outer side wall, the vehicle inner side wall, and the bottom wall. For this reason, the flange formed on the outer periphery of the vehicle body opening / closing member or the vehicle body door opening edge is inserted into the mounting base, and the vehicle outer side wall, the vehicle inner side wall, the bottom wall, and the sealant member formed on the inner surface thereof. Alternatively, since the tip of the flange is held by the seal lip, the flange does not drop off, and the automobile weather strip can be easily attached even if the thickness of the flange changes.

  Further, the sealant member is attached to the inner surface of the attachment base portion having a substantially U-shaped cross section or a substantially J-shaped cross section, and the attachment base portion is attached by inserting the tip of the flange into the sealant member. For this reason, a flange can be firmly hold | maintained with a highly adhesive sealant member. In addition, the force that securely wraps and holds the tip of the flange inside the sealant member is strong, the flange is difficult to come off from the sealant member, and noise can be prevented from entering the vehicle from the flange.

  According to the present invention of claim 6, the vehicle body opening / closing member is a door, and the weather strip is a sealant member for a weather strip which is an opening trim weather strip.

  In the present invention of claim 6, since the vehicle body opening / closing member is a door and the weather strip is an opening trim weather strip, the opening trim weather strip is securely held on the flange at the periphery of the vehicle body opening. In addition, it is possible to reliably prevent noise from entering the vehicle through the gap between the flange and the opening trim weather strip.

  In the present invention, since the foam of the foamed resin is mixed in at least the base material having adhesiveness, the sealant material can greatly reduce the specific gravity of the sealant member while maintaining the viscosity of the sealant member. Can contribute to weight reduction.

  The embodiment of the present invention will be described by taking the sealant member 70 used for the mounting base (trim portion) 20 of the opening trim weather strip 10 as an example. In addition to the opening trim weather strip 10, the present invention is also used for a weather strip sealant member 70 used for a vehicle body opening and a vehicle body opening / closing member that closes the opening as described above. Can do.

Embodiments of the present invention will be described.
The sealant member 70 is based on an adhesive base material, and is mixed with foamed resin.
The base material preferably has a glass transition point of −10 ° C. or lower. When the glass transition point is −10 ° C. or lower, the sealant member 70 has sufficient adhesive force, and the flange 7 can be firmly held.

As the base material, butyl rubber, ethylene-propylene rubber, polyisobutylene rubber, natural rubber, isoprene rubber, styrene-isoprene rubber, etc. are used for rubber, and polybutene resin is used for synthetic resin. Acrylic, silicone resin, ethylene-vinyl acetate copolymer (EVA), and the like can be used, and two or more of these substrates can be appropriately mixed and used.
The sealant member contains a softener, a tackifier, a filler, and an anti-aging agent in addition to the polymer as a base material. Furthermore, a rust preventive agent for preventing rust of the flange can be contained.

  Butyl rubber, which is a rubber base material, is an adhesive mainly composed of butyl rubber, ethylene-propylene rubber is an adhesive mainly composed of ethylene-propylene rubber, and polyisobutylene rubber is polyisobutylene. It is an adhesive mainly composed of rubber. The natural rubber-based adhesive is an adhesive mainly composed of natural rubber, and the isoprene rubber-based adhesive is an adhesive mainly composed of isoprene rubber. The styrene-isoprene rubber system is a block copolymer of styrene and isoprene. A block copolymer of styrene and butylene can also be used.

Polybutene resin, which is a synthetic resin base material, is an adhesive mainly composed of polybutene resin, and acrylic is an adhesive mainly composed of polyacrylate ester, polyacrylate ester copolymer, etc. is there.
The silicone resin adhesive is composed of a silicone rubber, a silicone resin, and an organic solvent, and has excellent heat resistance and adhesive strength in high and low temperature atmospheres.
The ethylene-vinyl acetate copolymer (EVA) -based adhesive is an adhesive mainly composed of a resin obtained by copolymerizing ethylene vinyl alcohol and vinyl acetate.

As the foamed resin, a foamed resin such as polystyrene, polyethylene, polypropylene, and urethane can be used.
The foamed resin powder preferably has a foamed particle size of 50 μm to 100 μm. In this case, the foamed resin can be mixed uniformly into the base material, and the physical properties of the sealant member 70 can be made uniform. In addition, if it is less than 50 micrometers, handling of powder will be troublesome, and if it exceeds 100 micrometers, the uniformity of the physical property after mixing will fall.

  The foamed resin has an apparent specific gravity of 0.001 to 0.1. In this case, the specific gravity of the foamed resin is extremely low, the effect of lowering the specific gravity of the sealant member 70 is great, the strength of the foamed particles is large, and mixing with the base material is easy. If the apparent specific gravity of the foamed resin is greater than 0.1, in order to reduce the specific gravity of the sealant member 70, the amount of foamed resin mixed into the sealant member 70 increases, and the sealability of the sealant member 70 decreases. This is because if the apparent specific gravity of the foamed resin is smaller than 0.001, the strength of the foamed resin is lowered and the foamed resin may be crushed during mixing. The amount of the foamed resin powder added is preferably 25 to 55% by volume, although it depends on the specific gravity. If it is less than 25% by volume, the apparent specific gravity of the sealant member 70 does not decrease, and a sufficient weight reduction cannot be obtained. On the other hand, if it is larger than 55% by volume, the adhesiveness of the sealant member 70 is lowered, and a stable sealing property cannot be obtained.

The filler preferably contains at least one of calcium carbonate, calcium silicate, silicate magnesium, silicon dioxide, zinc white, titanium white, and clay. In this case, the volume of the sealant member 70 can be increased, the cost can be reduced, and the reinforcement and workability can be improved.
The filler is also used for the purpose of imparting heat resistance, electrical properties, coloring, and the like. The filler is required to be easily dispersed uniformly, less deteriorated in physical and chemical properties, and inexpensive.

Softeners are those that are well compatible with the polymer of the base material, and that disperse within the tissue to relax the bond and plastic flow, or soften by providing lubricity to wet and adhere the adherend. is there.
As the softening agent, petroleum solvents, liquid polybutene, mineral oil, liquid polyisobutylene, liquid polyacrylic acid ester and the like can be used.

  The tackifier imparts an adhesive force to the sealant member 70, and a cohesive force, an apparent viscosity is reduced, and a critical surface tension is reduced, thereby improving the adhesive force. For example, rosin, rosin derivatives, polyterpene resins, terpene phenol resins, petroleum resins, and the like can be used for the sealant member 70.

  The anti-aging agent is to prevent the sealant member 70 from being oxidized and deteriorated by ozone, heat or light, and the anti-aging agent used in ordinary rubber products can be used in the present invention. . There are two types of anti-aging agents, phenolic and amine-based, which can react with radicals generated in the base material to prevent oxidation of the base material.

As described above, the structure of the sealant member 70 of the present invention contains a base material having adhesiveness, a filler, a softener, a tackifier, an anti-aging agent, and a rust inhibitor. And the said foamed resin is mixed in as one kind of filler in it.
As the sealant member 70, for example, butyl rubber is used as a rubber component and polybutene resin is used as a resin component to form a base material. A foamed resin, calcium carbonate and calcium silicate are used as fillers, and a petroleum solvent is used as a softening agent. The amount of the base material used is 20% to 50% by weight, the filler is 20% to 50% by weight, and the softening component is about 10% to 30% by weight.

As a first blending example of the sealant member 70, the following can be performed.
Base material (mixture of butyl rubber and polybutene resin as base material) specific gravity 1.0
40 parts by weight Filler (mixture of calcium carbonate and calcium silicate) specific gravity 2.5 50 parts by weight Softener (petroleum solvent) specific gravity 1.0 10 parts by weight
1 part or less each of tackifier and anti-aging agent The following foamed resin is further mixed in the above.
Foamed resin (foamed polystyrene) specific gravity 0.01 30 parts by volume

Furthermore, as a second blending example of the sealant member 70, the following can be performed.
Base material (mixture of butyl rubber and polybutene resin as base material) 40 parts by weight Filler (mixture of calcium carbonate and calcium silicate) 50 parts by weight Softener (petroleum solvent) 10 parts by weight
1 part or less each of tackifier and anti-aging agent The following foamed resin is further mixed in the above.
50 volume parts of foamed resin (polystyrene foam)

  In the first blending example, the specific gravity of the sealant member 70 is 1.0, and the specific gravity of the conventional sealant member 70 is 1.4. Therefore, when used in the weather strip 10 having a total length of 2.5 m, , The weight can be reduced by 48g. Further, in the second blending example, the specific gravity of the sealant member 70 is 0.7, and when used in the weather strip 10 having a total length of 2.5 m, the weight is reduced by 84 g.

Next, the case where the sealant member 70 of the present invention is used for the opening trim weather strip 10 will be described with reference to FIGS.
FIG. 1 is a cross-sectional view of a portion along line AA in FIG. 3 in a state in which the opening trim weather strip 10 of the present invention is attached to the vehicle body opening peripheral edge 6 in FIG.
FIG. 2 is a perspective view showing a state in which the opening trim weather strip 10 is attached to the vehicle body opening peripheral edge 6 in a state in which the door 2 of the automobile is opened. FIG. 3 is a front view of the opening trim weather strip 10 attached to the periphery 6 of the vehicle body opening.

  As shown in FIG. 2, a vehicle body 1 of an automobile has a vehicle body opening, and the vehicle body opening is opened and closed by a door 2 that is an opening / closing member of the vehicle body opening. The periphery of the vehicle body opening forms a vehicle body opening peripheral edge 6, and the front ends of the outer panel 9 and the inner panel 8, which define the vehicle body opening peripheral edge 6 constituting the vehicle body 1. It is united and welded to form a flange 7 (see FIG. 1). An opening trim weather strip 10 is attached to the flange 7 for sealing between the periphery 6 of the vehicle body opening and the door 2.

The opening trim weather strip 10 is linearly formed by extrusion. As shown in FIG. 3, the straight opening trim weather strip 10 is attached to the flange 7 so as to form an annular shape along the shape of the peripheral edge 6 of the vehicle body opening. The attachment is carried out sequentially from one end of the opening trim weather strip 10 to the flange 7, and when the attachment is completed, the other end is joined to the one end. This terminal may be formed into an annular shape by being joined by the connecting portion 11.
Further, the ends of the opening trim weather strip 10 may be bonded to each other before mounting.

Next, a sectional shape of the opening trim weather strip 10 using the sealant member 70 according to the embodiment of the present invention will be described with reference to FIG.
The opening trim weather strip 10 is in contact with a mounting base portion (trim portion) 20 having a substantially U-shaped cross section, which is attached to the flange 7, and a bulging portion 2 a of the door frame of the door 2. 6 has a hollow seal portion (hollow seal portion) 30 for sealing between the two.

The trim portion 20 has a substantially U-shaped cross section composed of the vehicle outer side wall 21, the vehicle inner side wall 22 and the bottom wall 23, and in order to increase the force with which the trim portion 20 clamps the flange 7, The embedded insert member 24 is made of sheet metal, wire, or hard synthetic resin. In the case of sheet metal or hard synthetic resin, a large number of strip-shaped bone fragments are arranged in parallel in the width direction, and the strip-shaped bone fragments are connected in a ladder shape or fishbone shape in the longitudinal direction, or a strip-shaped bone A continuous zigzag piece is used. In order to increase the flexibility of the trim portion 20, it is possible to use one that separates the connecting portions of the strip-shaped bone fragments one by one or plural after the insert member 24 is embedded. A continuous zigzag of strip-shaped bone fragments is also stretchable in the longitudinal direction and has flexibility.
As the wire insert member 24, a so-called wire carrier type member in which a wire is bent in a zigzag shape and held in a longitudinal direction by a plurality of threads is used.

  On the inner surface of the trim portion 20, a plurality of vehicle outer side holding lips 25 and a vehicle inner side holding lip 26 are extended from the vehicle outer side wall 21 and the vehicle inner side wall 22 toward the oblique bottom wall 23, respectively. When the flange 7 on the periphery 6 of the vehicle body opening is inserted into the inside of the trim portion 20 having a substantially U-shaped cross section, the vehicle outer side holding lip 25 and the vehicle inner side holding lip 26 sandwich the side surface of the flange 7 so that the opening trim The strip 10 can be held on the flange 7.

In the present embodiment, a plurality of short vehicle outer side holding lips 25 are formed, and one long vehicle inner side holding lip 26 is formed. Since the number of sheet metals constituting the flange 7 is different in each part of the periphery 6 of the vehicle body opening, the thickness of the flange 7 changes. The vehicle interior holding lip 26 bends flexibly as the thickness of the flange 7 changes, and can reliably hold the flange 7 at any thickness.
A cover lip 29 extends from the continuous portion of the bottom wall 23 of the trim portion 20 and the vehicle interior side wall 22 in the vehicle interior direction to cover the tip of the garnish 40 mounted in the vehicle to improve the aesthetic appearance.

As shown in FIG. 1, the sealant member 70 of the present invention is inserted into the trim portion 20. As described above, the sealant member 70 is based on an adhesive base material, in which a foamed resin is mixed, and a filler, a rust preventive agent, and the like are appropriately mixed.
The base material preferably has a glass transition point of −10 ° C. or lower. When the glass transition point is −10 ° C. or lower, the sealant member 70 has sufficient adhesive force, and the flange 7 can be firmly held.

As shown in FIG. 1, the sealant member 70 made of this base material is inserted in close contact with the bottom wall 23 on the inner surface of the trim portion 20, and the tip of the flange 7 is inserted into the sealant member 70, and the sealant member is inserted. 70 holds the tip of the flange 7.
In the present embodiment, the side surface of the flange 7 is held by a plurality of vehicle outer side holding lips 25 and one vehicle inner side holding lip 26. For this reason, even if the thickness of the flange 7 changes, the inside holding lip 26 is deformed and held, so that the force for holding the flange 7 is strong and the gap between the flange 7 and the trim portion 20 is reliably sealed. Can do.

  In addition, the tip of the flange 7 is held by a highly adhesive sealant member 70. For this reason, the flange 7 can be more strongly held together with the vehicle outer side holding lip 25 and the vehicle inner side holding lip 26. Since the front end of the flange 7 is wrapped with the sealant member 70, the flange 7 can be prevented from being rusted, noise can be prevented from entering from the outside of the vehicle, and rainwater and dust can be sealed.

  Further, in the opening trim weather strip 10, a hollow seal portion 30 is integrally formed with the trim portion 20. In the present embodiment, it is integrally formed on the outer surface of the vehicle outer side wall 21. The hollow seal portion 30 abuts against the bulging portion 2a of the door 2 when the door is closed, and seals between the door 2 and the periphery 6 of the vehicle body opening. In addition to the hollow seal portion 30, a lip-shaped seal lip may be provided.

  When the hollow seal portion 30 is formed of a sponge material of EPDM rubber or olefinic thermoplastic elastomer, and the trim portion 20 is formed of a solid material or fine foamed material of EPDM rubber or olefinic thermoplastic elastomer, the weather resistance is improved. You can get a good product. In this case, the opening trim weather strip 10 is entirely olefin-based, and can be used after being pulverized and recycled together.

In addition, the shape of the trim part 20 can also be made into cross-sectional substantially J shape. In this case, the vehicle interior side wall 22 is small and the vehicle exterior side wall 21 is not provided with the vehicle exterior side wall lip 25, and the vehicle exterior side wall 21 is provided with a sidewall sealant member 71, and the other parts are the same. .
The trim portion 20 has a substantially J-shaped cross section, and has a sealant member 70 at a portion in close contact with the inner bottom wall 23, the vehicle interior side wall 22 is formed short, and is formed to a length that holds the sealant member 70. Yes. Further, the outer side holding lip 25 is not formed on the inner surface of the outer side wall 21 but a side wall sealant member formed of an adhesive or a double-sided adhesive tape is provided.

Next, a method for manufacturing the opening trim weather strip 10 will be described.
The opening trim weather strip 10 is formed by extrusion molding, and even when an insert member 24 made of metal or hard synthetic resin is embedded in the trim portion 20, the insert member 24 and the solid rubber and the hollow portion constituting the trim portion 20 are hollow. The sponge rubber constituting the seal portion 30 can be integrally extruded by an extruder.

  In molding of the opening trim weather strip 10, synthetic rubber and thermoplastic elastomer are used as the molding material. For example, EPDM rubber is used for synthetic rubber, and polyolefin-based elastomer is used for thermoplastic elastomer. As the sponge material, the above EPDM rubber and thermoplastic elastomer are used by foaming.

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 and foam. In the case of a thermoplastic elastomer or soft synthetic resin, it is heated and foamed simultaneously with or after extrusion, and then cooled and solidified.
After this extrusion molding, in the case of rubber, after vulcanization, the trim part 20 is opened in a letter C shape, and the sealant member 70 is continuously inserted into the trim part 20 and pressed against the bottom wall 23. As a result, the sealant member 70 is bonded into the trim portion 20. Thereafter, if necessary, the insert member 24 of the trim portion 20 is separated and then bent into a substantially U-shaped cross section.
Thereafter, it is cut to a predetermined length to produce an extruded part.

The opening trim weather strip 10 manufactured in this way is cut to a predetermined size and attached to the flange 7 at the opening edge of the vehicle body of the automobile.
When the opening trim weather strip 10 is attached to the flange 7, the trim part 20 is inserted into the flange 7 as it is, or the trim part 20 is temporarily fixed with a substantially U-shaped opening slightly open, and the flange 7 may be inserted into the sealant member 70 and attached by a roll forming method.

FIG. 7 is a cross-sectional view showing a state in which the opening trim weather strip according to the first embodiment of the present invention is mounted on the periphery of the vehicle body opening at the portion along the line AA in FIG. 6. It is a perspective view of the side of a car. It is a front view of the opening trim weather strip which is an embodiment of the present invention. It is a partial cross section figure in the state which attached the conventional opening trim weather strip to the opening edge of a motor vehicle.

Explanation of symbols

6 Car body opening periphery 10 Opening trim weather strip 20 Mounting base (trim)
21 Car Outer Side Wall 22 Car Inside Side Wall 23 Bottom Wall 30 Hollow Seal Part 70 Sealant Member

Claims (6)

In a non-drying sealant member used for a weather strip that seals between a vehicle body opening / closing member of an automobile and a vehicle body opening periphery of the automobile,
A sealant member for a weather strip, characterized in that a foamed resin powder is mixed in at least an adhesive base material.   The base materials are butyl rubber, ethylene-propylene rubber, polyisobutylene rubber, natural rubber, isoprene rubber, styrene-isoprene rubber, polybutene resin, acrylic, silicone resin, ethylene-vinyl acetate copolymer The sealant member for a weather strip according to claim 1, comprising any two or more of united (EVA) systems.   The weatherstrip according to claim 1 or 2, wherein the sealant member contains at least one of calcium carbonate, calcium silicate, magnesium silicate, silicon dioxide, zinc white, titanium white, and clay as a filler. Sealant material for use.   4. The sealant member according to claim 1, wherein the sealant member contains at least one of a petroleum solvent, liquid polybutene, mineral oil, liquid polyisobutylene, and liquid polyacrylate as a softening agent. Sealant material for weather strip. The weather strip includes a mounting base that is attached to a flange provided on either the vehicle body opening / closing member or the periphery of the vehicle body opening, and is integrally attached to the mounting base. A seal part that seals between the vehicle body opening / closing member and the vehicle body opening / closing member in contact with the vehicle body opening / closing member or the vehicle body opening / closing member as a member;
The mounting base portion has a substantially U-shaped cross section or a substantially J-shaped cross section formed from a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and the sealant member has the substantially U-shaped cross section or the substantially J-shaped cross section. The sealant member for a weather strip according to any one of claims 1 to 4, wherein the sealant member is attached to an inner surface of a base portion, and a leading end of a flange is inserted into the sealant member.   6. The weather strip sealant member according to claim 1, wherein the vehicle body opening / closing member is a door, and the weather strip is an opening trim weather strip.

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