| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a sound-proof cover which uses manufacturing equipment and a mold with simple configurations and simple manufacturing processes and is suppressed in the formation of underfill parts in convex portions of the back surface of a sound absorbing member. SOLUTION: The sound-proof cover 1 includes a cover body 2 having a back surface 20 having a reference plane 200 at the body side and a sound absorbing member 3 which has a front surface 30 having a reference plane 300 at the sound absorbing member side and a back surface 31 having convex portions 310 and 311 and is arranged at the back side of the cover body 2 and formed of a resin foam. The front surface 30 of the sound absorbing member 3 has a concave portion 301 arranged at the front side of the convex portions 310 and 311. The method of manufacturing the sound-proof cover 1 includes a process of injecting a foaming-resin material P into a cavity 71 of a mold 4 comprising the first mold 5 which has the first mold face 50 having a reference plane forming face 500 corresponding to the reference plane 300 at the sound absorbing member side and a concave portion molding section 501 corresponding to the concave portion 301 and the second mold 6 having the second mold face 60 having convex portion molding sections 600 and 601 corresponding to the convex parts 310 and 311. COPYRIGHT: (C)2010,JPO&INPIT |
