Gas-assisted pressure injection molding for attachment inside motor vehicle includes hollow section with curved front wall conforming with class A finish standards and avoiding sagging

摘要

The molding (50) has a hollow cross section, with front- (58) and rear- (60) walls joined by upper- (62) and lower- (64) walls. The molding is formed using pressurized gas to make the channel extending through the molding. A fixed section extends down from the front wall to the rear immediately below the lower wall, in an arrangement preventing sagging in the free outer surface of the molding, and covering any gas channel passing through. Preferred features: The upper wall of the hollow body also has an outer surface free of sagging. The back wall has a region forming a connection with another object and a further connecting section joining the base wall. The region of connection is essentially planar. The other object is a part of a motor vehicle e.g. a metal wall (52). The front wall has an upper region with non-convex surface. The lower wall connects to the front wall below the non-convex surface.