Patent ID: 8006437
Filing Date: 2011-08-30
Classification: B60J

Abstract:
1. A long glass run channel assembly which is made of an elastic polymeric material, and which is capable of being continuously mounted along an inside of a groove of a door frame, the groove being formed between an interior side wall and an exterior side wall arranged substantially parallel to each other in a width direction of a car, the door frame comprising a vertical frame which is arranged in a vertical direction along a center pillar of the car, an upper frame which includes an inclination frame extending obliquely downward along a front pillar or a rear pillar, and a corner frame which integrally connects an upper end of the vertical frame and an end of the upper frame at a side of the center pillar while being made to intersect each other at a predetermined intersection angle, the glass run channel assembly being configured to guide a windowpane which moves up and down within a door when mounted to the inside of the groove, the glass run channel assembly comprising: a long upper side portion made of a vulcanized elastic rubber whose coefficient of static friction with the door frame is μ a long vertical side portion made of an olefin system thermoplastic elastomer whose coefficient of static friction with the door frame is μ a corner portion made of a thermoplastic elastomer and mounted along the corner frame of the door frame, wherein each of the upper side portion and the vertical side portion comprises: wherein each of the upper side portion and the vertical side portion is formed by extrusion-molding to have a substantially U-shape constant cross-section with the bottom wall and both the interior and exterior side wall portions in a state before being mounted to the door frame, wherein each of the interior side wall portion and the exterior side wall portion has an interior seal lip and an exterior seal lip, each extending in a folded-back shape toward the bottom wall integrally from a protruding tip thereof while holding a space to the side wall portions, wherein, when mounted to the door frame, both the upper side portion and the vertical side portion are changed to a shape in which an expansion degree of the U-shape between the interior side wall portion and the exterior side wall portion before mounting is reduced by the elastic deformation of the bent connections, wherein after mounting, an elastic force f wherein the cross-sectional shapes of the upper side portion and the vertical side portion are adjusted such that the frictional force per unit length obtained by multiplying the coefficient μ