公开(公告)号：US10022765B2

公开(公告)日：2018-07-17

申请号：US14681384

申请日：2015-04-08

Applicant: DENSO CORPORATION

Inventor： Kazuhiro Mitsukawa ,  Masafumi Torimoto ,  Takao Ikeda ,  Yoshinori Suzuki ,  Koichiro Sato ,  Hidemasa Otsubo

IPC: B21D13/02 ,  B21D13/06 ,  B21D53/02 ,  B21D17/00

Abstract: In a corrugated plate manufacturing apparatus, each of a plurality of primary forming punches includes a plurality of primary pressable portions that are arranged one after another in a slider reciprocating direction and are pressable by a corresponding one of a plurality of primary sliders. When the primary sliders are sequentially moved toward one side in the slider reciprocating direction, each corresponding one of the primary sliders presses the primary pressable portions of the corresponding one of the primary forming punches to press the primary forming punch against a secondary die.