Glass run for motor vehicle

A glass run for attachment along an inner periphery of a door frame structure of a motor vehicle, for guiding a door glass as it is raised and lowered, and for forming a seal between a peripheral portion of the door glass and the door frame structure when the door glass is raised to close a window opening of a door, the glass run comprising:

• a main body having a generally U-shaped cross section comprising a bottom wall, a first side wall, a second side wall, and an opening that define a run cavity configured for receiving and supporting the peripheral portion of the door glass, the main body being adapted to be inserted into a channel provided along the inner periphery of the door frame structure wherein the first side wall has an opening-side inner surface and a bottom-side inner surface, the bottom-side inner surface of the first side wall is configured to be inclined at an angle with respect to the door glass when the door glass is in a raised position such that a distance between the bottom-side inner surface of the first side wall and a first side of the peripheral portion of the door glass increases toward the bottom wall;
• a first flexible seal lip configured to extend obliquely inwardly from an opening end of the first side wall into the run cavity, wherein an inside surface of the first flexible seal lip is adapted to contact the first side of the peripheral portion of the door glass extending into the run cavity, and a projecting end of the first flexible seal lip extends towards the bottom-side inner surface of the first side wall so as to enable the projecting end to contact the bottom-side inner surface of the first side wall;
• and
• a second flexible seal lip configured to extend obliquely inwardly from an opening end of the second side wall into the run cavity and to contact a second side of the peripheral portion of the door glass extending into the run cavity,
• wherein the first and second flexible seal lips are adapted to be pushed toward their respective side walls by contact with the peripheral portion of the door glass, whereby when the first flexible seal lip is pushed toward the first side wall by contact with the first side of the peripheral portion of the door glass, and the projecting end of the first flexible seal lip contacts the bottom-side inner surface of the first side wall, the projecting end of the first flexible seal lip moves along the inclined bottom-side inner surface of the first side wall towards the bottom wall of the main body.