| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mold for manufacturing a foam roller which, in manufacturing the same by integral molding with a shaft, prevents the generation of cell roughening of foam cells and cracks in the ends of a molding and which can give the high-quality foam roller free from such defects. <P>SOLUTION: The mold 10 is used for manufacturing the foamed body roller comprising an shaft 1 and a foamed body supported on the outer periphery of the shaft. The mold comprises a hollow pillar-shaped mold main body 11 and cap members 12 which are inserted in the openings of both ends of the mold main body, hold the shaft end parts and at the same time plug the openings, wherein the manufacture of the foam roller is performed by injecting a raw material into the mold main body in such a state that the shaft is installed to penetrate the center line of the mold main body. The cap members 12 comprises, in the inner periphery of the parts holding the shaft 1 end parts, at least one air leak gap 12a which extends almost to the longitudinal direction and makes the inside and the outside of the mold main body 11 communicant. <P>COPYRIGHT: (C)2007,JPO&INPIT |
