US 12,257,748 B2
Method for manufacturing composite molded article and composite molded article
Takashi Bando, Toyota (JP); Hiroshi Kito, Toyota (JP); Kazuto Sawada, Toyota (JP); and Batbaatar Liijiijamba, Toyota-shl (JP)
Assigned to VUTEQ CORPORATION, Toyota (JP)
Appl. No. 17/793,392
Filed by VUTEQ CORPORATION, Toyota (JP)
PCT Filed Feb. 16, 2021, PCT No. PCT/JP2021/005585
§ 371(c)(1), (2) Date Jul. 16, 2022,
PCT Pub. No. WO2021/166866, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 2020-027771 (JP), filed on Feb. 21, 2020.
Prior Publication US 2023/0054242 A1, Feb. 23, 2023
Int. Cl. B29C 45/14 (2006.01); B29C 45/26 (2006.01)
CPC B29C 45/1418 (2013.01) [B29C 45/14008 (2013.01); B29C 45/26 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for manufacturing a composite molded article in which a first molded portion formed by a flat plate-like first member which is softened under heating and a second molded portion formed by hardening molten resin are integrally molded, the method comprising:
opening a molding mold that forms a molding space by mold closing and has a weir portion projecting into the molding space,
arranging the flat plate-like first member softened under heating in a part of a portion where the molding space is formed,
forming the first molded portion that is stereoscopic with the mold closing,
simultaneously filling an injected molten resin in a remaining portion of the molding space around the first member outside the weir portion in a state that the weir portion is made to abut against a thin portion reduced in thickness and provided at a peripheral edge of the first molded portion, and
forming the second molded portion that is joined to the first molded portion by hardening molten resin after the resin is caused to contact the first molded portion,
wherein the thin portion is a portion formed by compressing the first member and has a higher density than that of portions other than the thin portion in the first molded portion.