| 摘要 |
An upper mold member 32 having an upstream upper punch 32 a, an upper recess portion 32 b and a downstream upper punch 32 c that are serially arranged, from a feed upstream side of a sheet material W and a lower mold member 24 having an upstream lower punch 24 a, a lower recess portion 24 b and a downstream lower punch 24 c that are serially arranged from the feed upstream side of the sheet material W are caused to displace towards a feed downstream side of the sheet material W while the upper mold member 32 and the lower mold member 24 sandwich the sheet material W between them. The productivity of a press apparatus can be improved and the cost can be reduced.
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