公开(公告)号：US09662705B2

公开(公告)日：2017-05-30

申请号：US14573138

申请日：2014-12-17

申请人： DENSO CORPORATION

发明人： Hidemasa Otsubo ,  Masafumi Torimoto ,  Kazuhiro Mitsukawa ,  Masahito Sugiura ,  Takao Ikeda

IPC分类号： B21J5/12 ,  B21J13/02 ,  B21D13/02 ,  B30B1/26

CPC分类号： B21J5/12 ,  B21D13/02 ,  B21J13/02 ,  B30B1/261

摘要： A processing machine for performing a bending operation on a workpiece includes a die, a punch movable in a first direction for pressing the workpiece against the die, a slide member movable in a second direction perpendicular to the first direction, a first cam device that moves the punch toward the die for deforming the workpiece when being actuated by movement of the slide member, a second cam device that moves the punch for pressing a surface of the workpiece when being actuated by movement of the slide member. The pressure angle of the second cam device is smaller than a pressure angle of the first cam device. The processing machine further includes a drive member configured to move the slide member such that the second cam device is actuated after the first cam device is actuated.

公开(公告)号：US10220431B2

公开(公告)日：2019-03-05

申请号：US15043674

申请日：2016-02-15

申请人： DENSO CORPORATION

发明人： Kazuhiro Mitsukawa ,  Masafumi Torimoto ,  Shinya Nii ,  Takao Ikeda ,  Kenta Nonoyama

IPC分类号： B21D53/22 ,  B21D53/02 ,  B21D13/08 ,  B21D13/10

摘要： An offset fin manufacturing method for manufacturing offset fins includes a feeding step of feeding a strip plate, a connection forming step of forming a connection in the strip plate, and an offset fin forming step of bending a planar plate portion located between corresponding two of the connections. In the offset fin forming step, each offset fin is formed such that two of top surface portions, which are located at an upstream end and a downstream end, respectively, of the offset fin in a feed direction of the strip plate, are respectively and directly connected to corresponding two of the connections. One of two of lateral surface portions joined to a corresponding one of the two of the top surface portions is not offset, and thereby a length of the corresponding one of the two of the top surface portions measured along a wave continuation direction is increased.

公开(公告)号：US10022765B2

公开(公告)日：2018-07-17

申请号：US14681384

申请日：2015-04-08

申请人： DENSO CORPORATION

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

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

摘要： 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.