Glass run and method of assembling door glass on glass run

A glass run for guiding a door glass lifting or lowering in a ditch, which is fittable along a frame having a substantially U-shape in cross section of an automobile door, the glass run comprising:

• a body having a substantially U-shape in cross-section including an inner-cabin side wall, an outer-cabin side wall and a connecting wall which connects the side walls;
• an inner lip which is extending toward said connecting wall side from an outer-cabin side surface of said inner-cabin side wall and slidably brought into contact with said door glass;
• and an outer lip which is extending toward an inner-cabin side from an inner side surface of an end position of said outer-cabin side wall and slidably brought into contact with said door glass, the outer lip being forked into an inner-attaching lip which extends toward said connecting wall side from an inner-cabin side surface of the end position of said outer-cabin side wall and faces said inner lip and an outer-attaching lip which is substantially perpendicular to a direction in which the inner-attaching lip extends from a base root of the inner-attaching lip and extending toward an opposite side to said connecting wall side;
• wherein:
• said inner lip is substantially S shaped in cross section, of which one interval between a base root and an intermediate part is swelled and curved toward said inner-cabin side wall side and another interval between the intermediate part and a top end of said inner lip is swelled and curved toward said outer-cabin side wall side;
• and
• while inserting said door glass into the ditch for assembling said door glass, as an end surface of said door glass is slidably moved toward the top end side from the base root of said inner lip and just before said door glass abuts the outer-attaching lip of said outer lip, a displacement point on a surface on an opposite side to said connecting wall side of said inner lip, on which a direction of a curve of said inner lip changes, is on said connecting wall side compared with a top end of the outer-attaching lip of said outer lip.

A method of assembling a door glass on a glass run for guiding a door glass lifting or lowering in a ditch, which is fittable along a frame having a substantially U-shape in cross section of an automobile door, the glass run comprising:

• a body having a substantially U-shape in cross-section including an inner-cabin side wall, an outer-cabin side wall and a connecting wall which connects the side walls;
• an inner lip which is extending toward said connecting wail side from an outer-cabin side surface of said inner-cabin side wall and slidably brought into contact with said door glass;
• and an outer lip which is extending toward an inner-cabin side from an inner side surface of an end position of said outer-cabin side wall and slidably brought into contact with said door glass, the outer lip being forked into an inner-attaching lip which extends toward said connecting wall side from an inner-cabin side surface of the end position of said outer-cabin side wall and faces said inner lip and an outer-attaching lip which is substantially perpendicular to a direction in which the inner-attaching lip extends from a base root of the inner-attaching lip and extending toward an opposite side to said connecting wall side;
• said inner lip is substantially S shaped in cross section, of which one interval between a base root and an intermediate part is swelled and curved toward said inner-cabin side wall side and another interval between the intermediate part and a top end of said inner lip is swelled and curved toward said outer-cabin side wall side;
• a displacement point on a surface on an opposite-side to said connecting wall side of said inner lip, on which a direction of a curve of said inner lip changes, is on said connecting wall side compared with a top end of the outer-attaching lip of said outer lip;
• wherein
• said door glass is inserted into the ditch of the glass run by abutting an end surface of said door glass on a base root of said inner lip first, abutting an outer-cabin side surface of said door glass on an inner-cabin side surface of the inner-attaching lip of said outer lip via an inner-cabin side surface of the outer-attaching lip of said outer lip and abutting an inner-cabin side surface of said door glass on said inner lip while slidably moving said door glass toward the top end side from the base root of said inner lip for holding said door glass.