Toyoda Gosei Co., Ltd.

Japan Vilene Company, Ltd.

Hirofumi Otsuka

Masatoshi Hotta

Masatoshi Nojiri

Hiroshi Sugawa

Hideaki Minoura

Kazuhiro Takahashi

Hiroshi Sobue

Tatsuhiko Tsumura

An outer weatherstrip formed of a thermoplastic elastomer fitted to an upper edge portion of a door panel of an automobile door, for sealing a space between the door panel and a door glass includes a main body consisting of a vehicle interior-side side wall, a top wall, and a vehicle exterior-side side wall, and an upper seal lip and a lower seal lip protruding from the vehicle interior-side side wall to the door glass side. A plasticizer-rich layer and a plasticizer-rich layer containing a higher proportion of a plasticizer component compared to the thermoplastic elastomer forming the upper seal lip and the lower seal lip are formed on the sides of the upper seal lip and the lower seal lip abutting on the door glass.

Outer weatherstrip

An automotive glass run that is attached to an inner periphery of a door frame of an automotive door, guides ascending and descending of a door glass, and is formed of a thermoplastic elastomer, includes: a main body having a substantially U-shaped cross section, the main body including a vehicle-exterior side wall, a vehicle-interior side wall, and a bottom wall; a holding lip that extends from at least one of the vehicle-exterior side wall and the vehicle-interior side wall and abuts on the door frame; and a plasticizer rich layer formed on at least one side of the holding lip abutting on the door frame, the plasticizer rich layer including a large amount of plasticizer component compared to the thermoplastic elastomer forming the holding lip.

Automotive glass run

An opening trim weather strip includes an attaching base portion and a hollow seal portion. The hollow seal portion is formed to be divided into a first hollow portion and a second hollow portion. The first hollow portion includes a first outer peripheral sidewall extending from an opening end of a vehicle outside sidewall of the attaching base portion, the hollow seal portion connection wall, a first inner peripheral sidewall, and the vehicle outside sidewall. The second hollow portion includes a second outer peripheral sidewall and a second inner peripheral sidewall. A connector between the first outer peripheral sidewall and the second outer peripheral sidewall forms a hollow seal portion bent portion, and an outer surface of the hollow seal portion bent portion is formed to be positioned in the inner peripheral direction of the vehicle body opening peripheral edge than the tip portion of the second hollow portion.

Opening trim weather strip

An opening trim weatherstrip includes: a mounting base portion which is mounted on a flange; and a hollow seal portion, which is configured to be brought into abutment with a door frame or an outer circumference of a door panel of a motor vehicle door to seal a gap between the motor vehicle door and a vehicle body opening portion circumferential edge, including: a hollow root portion which is formed from the mounting base portion; and a hollow extension portion which is provided so as to extend transversely outwards from the hollow root portion; wherein a deformation rigidity of the hollow extension portion at a portion where the opening trim weatherstrip is mounted on a portion of the vehicle body opening portion circumferential edge which lies near a door hinge is higher than a deformation rigidity of the hollow extension portion at the other portion.

Opening trim weatherstrip

An object of the present invention is, even when the design of a weather strip body with a specific gravity of about 0.5 to 0.85 is improved using a nonwoven fabric, to provide a weather strip with excellent trackability and excellent adhesiveness between the weather strip body and the nonwoven fabric. The weather strip of the present invention comprises a weather strip body having a specific gravity of 0.5 to 0.85 and made of an ethylene-propylene copolymer rubber, an adhesive resin sheet comprising random polypropylene and a polypropylene-based thermoplastic elastomer, and a nonwoven fabric, said nonwoven fabric being attached to the weather strip body via the adhesive resin sheet.

Weather strip

A weather strip having an insert and exhibiting a large holding force against a flange, includes a trim portion and a sealing portion. The trim portion has an outer holding lip formed to extend from an interior surface of an outer side wall, and an inner holding lip formed to extend from an interior surface of an inner side wall, and the insert is embedded in the trim portion. The insert is formed from a band-shaped metallic plate such that a large number of insert pieces, each having a rectangular configuration, extend in a width direction of the band-shaped metallic plate, and are joined in the vicinity of ends of the insert pieces with joining parts in a longitudinal direction of the band-shaped metallic plate into a ladder-shaped configuration. Slits are formed between adjacent insert pieces.

Weather strip for motor vehicle

A weatherstrip includes: a trim portion and a seal portion. The trim portion includes: a main body portion including a first and second side wall portions provided on a vehicle outer side and a vehicle inner side, respectively; a first and second holding lips extending from the first and second side wall portions, respectively; and a first extended wall portion extending from a distal end portion of the first side wall portion. In a trim portion attaching direction, a distal end portion of the first side wall portion is positioned at, or on the weatherstrip inner circumferential side of, a boundary portion between the trim portion and an inner circumferential surface of the seal portion, and a distal end portion of the second side wall portion is positioned on the weatherstrip inner circumferential side of a distal end portion of the first extended wall portion.

Weatherstrip attachable to edge of opening portion in vehicle body

A weather striphas a trim portionand a hollow seal portion. The trim portionis made up of an external sidewall, a bottom walland an internal sidewallto thereby be given a substantially U-shaped cross section. A first flange holding lipis formed on an interior surface of either of the external sidewalland the internal sidewallso as to be positioned on an opening side of the trim portion, a second flange holding lipis formed on the interior surface of the same sidewall so as to be positioned on a bottom wall side of the trim portion, and opposite flange holding lipsare formed on an interior surface of the other of the external sidewalland the internal sidewallso as to be positioned between the first flange holding lipand the second flange holding lipwhile extending therefrom.

A weather strip is provided in which the trim portion does not have an insert member embedded, a notch or a thin wall portions are formed in a portion near the bottom wall of the vehicle exterior sidewall and the vehicle interior sidewall, a thick wall portion is formed in the further front end than the thin wall portion, and both the front ends are inclined so as to approach each other. Two of each of flange holding lips are formed on each of the inner surfaces of both sidewalls; and the angle at which the flange holding lips of the opening side are projected is formed larger than the angle of the flange holding lips of the bottom wall side; the front ends of the flange holding lips of the opening side are formed so as to be contact with or close to each other; the front ends of the flange holding lipsandof the bottom wall side are linearly formed to have a gap in the width direction or in a direction orthogonal to the width direction.

Growing community of inventors

Kiyosu, Japan

Hirofumi Otsuka