| 摘要 |
PROBLEM TO BE SOLVED: To more certainly prevent the deformation of the projected part on an inner peripheral side forming an empty chamber for injecting a primary molding resin toward the empty chamber part by the effect of resin molding pressure in a method for producing a hollow product made of a resin by integrally bonding two divided members after primary molding by a secondary molding. SOLUTION: The projected part 249 on an inner peripheral side positioned on the inner peripheral side of the empty chamber part 243 of a joining part is molded on one divided member 240 among two divided members 240, 241 at the time of primary molding and the support projected part 245 positioned on the further inner peripheral side from the projected part 249 on the inner peripheral side to support the projected part 249 on the inner peripheral side 249 is molded on the other divided member 241 and, at the time of secondary molding, the temp. of the other divided member 241 having the support projected part 245 is made lower than that of one divided member 240 having the projected part 249 on the inner peripheral side. |
