Method of manufacturing door glass run for motor vehicle

Details Method of manufacturing door glass run for motor vehicle Method of manufacturing door glass run for motor vehicle

1998-05-21

1999-11-02

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

264251, 264295, B29C 5336, B60J 1002

Patent

active

059764384

ABSTRACT:
A method of manufacturing a door glass run to be attached along an inner periphery of a door frame of a vehicle door. The method includes forming a door glass run having a main portion of a generally U-shaped cross-section, and seal lips which extend from ends of side walls of the main portion toward the inside thereof by extrusion such that one side wall has a height greater than that of the other side wall, forming first, second and third cutouts in the extruded door glass run from a bottom wall of the main portion to angular parts connecting the bottom wall to the side walls such that the first cutout faces about a center of a corner of the door frame, and the second and third cutouts face about borders between the corner of the door frame and straightly extending parts thereof, bending the door glass run having these cutouts in conformity with the corner of the door frame, and filling these cutouts with molding material to mold a bottom wall and angular parts connecting the bottom wall to side walls therein such that the thickness of the angular part connecting the bottom wall to the side wall having a greater height is increased, as compared to that of a corresponding angular part of the extruded glass run.

REFERENCES:
patent: 4183778 (1980-01-01), Mesnel
patent: 4908989 (1990-03-01), Omura et al.
patent: 4964620 (1990-10-01), Omura et al.
patent: 5035937 (1991-07-01), Nozaki
patent: 5407628 (1995-04-01), Nozaki et al.

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