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U.S. Department of Energy
Office of Scientific and Technical Information

Weather strip for vehicle and producing method thereof

Patent ·
OSTI ID:6340971

This method describes a method for producing a weather strip composed of a channel shaped base portion, a seal portion projecting from an outer surface of the base portion, and a partially connected core member embedded in the base portion in its longitudinal direction, comprising: supplying a core member made of a strip-shaped thermoplastic synthetic resin sheet and having transversely extending slots at regular intervals in the longitudinal direction of the core member; integrally extruding the core member with rubber material to obtain an extruded body; heating the extruded body to soften the extruded core member and cure the extruded rubber material; bending the extruded core member while the extruded core member remains softened with the rubber material to have a U-shaped cross section to form the base portion and cooling the bent extruded body having the formed base portion.

Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai
Patent Number(s):
US 4676856
OSTI ID:
6340971
Country of Publication:
United States
Language:
English