B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/683
B29C 45/14 (2006.01) B60J 10/08 (2006.01) B60R 13/06 (2006.01)
Patent
CA 2037213
A method for forming a molded portion composed of solid rubber onto an end of an extruded weather strip having a base portion composed of solid rubber and a lip-shaped sealing portion composed of sponge rubber and extending from the base portion. The method includes the steps of inserting the end of the extruded weather strip into a cavity of a mold, the cavity having a cross-sectional shape identical with that of the end of the extruded weather strip. The method further includes injecting a molding material into the cavity from a gate of the mold while throttling the molding material flowing to the end of the lip-shaped sealing portion of the extruded weather strip by a protruding portion protruding into a passageway of the cavity leading to the end of the lip-shaped sealing portion of the extruded weather strip at a position close thereto. This causes the pressure of the molding material acting on the end of the lip-shaped sealing portion of the extruded weather strip to be smaller than that of the molding material acting on an end of the base portion of the extruded weather strip.
Nozaki Masahiro
Sumi Toshikyuki
Borden Ladner Gervais Llp
Toyoda Gosei Co. Ltd.
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