An installation base member couples to an opening of an automobile body and has a substantially U-shaped cross section. A hollow seal member includes a first base root and a second base root which extend from an outer-cabin side wall of the installation base member. The hollow seal member in cross section protrudes from the first base root outwardly to a first turning point, curves toward a base root of the flange and connects with the second base root. A side of the first base root includes solid (dense) material. An interval between the first and the second base roots includes sponge material. A first border between the solid (dense) material of the side of the first base root and the sponge material is closer to an exterior of the automobile than the first turning point.

An installation base member couples to an opening of an automobile body and has a substantially U-shaped cross section. A hollow seal member includes a first base root and a second base root which extend from an outer-cabin side wall of the installation base member. The hollow seal member in cross section protrudes from the first base root outwardly to a first turning point, curves toward a base root of the flange and connects with the second base root. A side of the first base root includes solid (dense) material. An interval between the first and the second base roots includes sponge material. A first border between the solid (dense) material of the side of the first base root and the sponge material is closer to an exterior of the automobile than the first turning point.

A weather strip formed from at least two materials having distinct physical properties and a corresponding glass run channel. In particular, the weather strip includes a base portion and two sidewalls located on opposite edges of the base portion. The base portion and sidewalls each include a strip of first material and joints between the base portion and the sidewalls each include a strip of second material more flexible than the first material. The weather strip further includes at least one projection and the glass run channel includes at least one opening for establishing a press fit engagement with the at least one projection. In addition to the first two materials, the weather strip may also be formed of an additional third material having a low friction index and located to come into direct contact with a windowpane. The weather strip is co-extruded out of the first and second material.

A weather strip formed from at least two materials having distinct physical properties and a corresponding glass run channel. In particular, the weather strip includes a base portion and two sidewalls located on opposite edges of the base portion. The base portion and sidewalls each include a strip of first material and joints between the base portion and the sidewalls each include a strip of second material more flexible than the first material. The weather strip further includes at least one projection and the glass run channel includes at least one opening for establishing a press fit engagement with the at least one projection. In addition to the first two materials, the weather strip may also be formed of an additional third material having a low friction index and located to come into direct contact with a windowpane. The weather strip is co-extruded out of the first and second material.

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.

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.

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.

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.

A glass run for guiding a door glass in a frame includes: a body including an outer-cabin side wall, an inner-cabin side wall, and a connecting wall which connects the side walls and forms a channel; an outer-cabin side lip which extends toward an inside of the channel from the outer-cabin side wall and is slidably brought into contact with an outer-cabin side surface of the door glass; an inner-cabin side lip which extends toward the inside of the channel from the inner-cabin side wall and is slidably brought into contact with an inner-cabin side surface of the door glass. The outer-cabin side lip and the inner-cabin side lip include an ethylene--olefin copolymer to which a silane crosslinking is applied. The body includes a thermoplastic resin to which the silane crosslinking is not applied.

A retractable truck bed cover having an array of parallel aluminum slats joined together by connective hinges including leading and trailing edge configuration for improving the security of the cover by covering and concealing the seam between adjacent slats while improving the connective hinge's resistance to the effects of aging and/or exposure to temperature fluctuations. The truck bed cover connective hinge slat is designed to be in an array of discrete slats, which are joined to one another by means of joiner members secured at each end to slat end caps. The distal ends of the joiner members are attached to slat end caps at the distal ends of the slats, thereby preventing the joiner members from shrinking in relationship to the slats due to aging and I or exposure to temperature fluctuations.