| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a perforating method, efficiently and suitably forming a through hole in an easily deformable foam molding and a perforating device for a foam molding, suitably implementing the perforating method. <P>SOLUTION: A plurality of foam moldings 10 presenting a plate-like shape are aligned in parallel, and a punching tool 22 is caused to rush in and penetrate at a required speed sequentially from one side of these foam moldings 10. At this time, broken and separated unnecessary discard material 14 from each foam molding 10 is sequentially stored in a tip recessed part 36 provided at the tip of the punching tool 22. When the punching tool 22 penetrates all of the foam moldings 10 so that the tip is projected to the other side, the unnecessary discard material 14 stored in the tip recessed part is removed from the other side using sucking air of a removing mechanism. Prior to rush-in of the punching tool 22, the aligned foam moldings 10 are respectively compressed from the same direction as the rush-in direction of the punching tool 22 in the range of 3 to 5%. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
