公开(公告)号：US09662705B2

公开(公告)日：2017-05-30

申请号：US14573138

申请日：2014-12-17

Applicant: DENSO CORPORATION

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

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

CPC classification number: B21J5/12 ,  B21D13/02 ,  B21J13/02 ,  B30B1/261

Abstract: 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：US11897022B2

公开(公告)日：2024-02-13

申请号：US16513923

申请日：2019-07-17

Applicant: DENSO CORPORATION

Inventor： Kenichi Kachi ,  Hisashi Kobayashi ,  Sachi Onaga ,  Kazuhiro Mitsukawa ,  Yoshinori Sakimoto ,  Taichi Asano ,  Kazutaka Suzuki

IPC: B21D53/02 ,  B21D13/04 ,  F28F1/12

CPC classification number: B21D53/022 ,  B21D13/04 ,  F28F1/126

Abstract: A fin according to the present disclosure is a corrugated fin formed of a metal plate by bending into a corrugated shape, and the corrugated fin includes peak portions extending in a first direction, valley portions extending in the first direction, and inclined portions connecting the peak portions and the valley portions adjacent to each other. The peak portions and the valley portions are alternately arranged in a second direction perpendicular to the first direction, and a thickness of the metal plate at each apex of the peak portions and the valley portions is larger than a thickness of the inclined portions of the metal plate.

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.

公开(公告)号：US09259775B2

公开(公告)日：2016-02-16

申请号：US13741462

申请日：2013-01-15

Applicant: DENSO CORPORATION

Inventor： Kazuhiro Mitsukawa ,  Masafumi Takahashi ,  Keisuke Nakamura ,  Hidemasa Otsubo ,  Nobuyuki Morikawa

IPC: B21D53/02 ,  B21D13/00 ,  B23P15/26 ,  F28F1/40 ,  B21D13/04 ,  F28F1/12 ,  F28D21/00

CPC classification number: B21D53/022 ,  B21D13/00 ,  B21D13/04 ,  B23P15/26 ,  F28D2021/0089 ,  F28F1/128 ,  F28F1/40 ,  F28F2215/08 ,  Y10T29/5142

Abstract: Flat-plate connecting portions are formed in a band plate by a connecting-portion forming unit. The flat-plate connecting portions are cut off by another connecting-portion forming unit except one flat-plate connecting portion so as to form a corrugated-plate connecting portion. A corrugated-plate portion is formed by a corrugation forming unit, so that the corrugated-plate portion has multiple projections arranged in a width direction of the band plate and each of the projections extends in a plate feeding direction. The corrugated-plate connecting portion corresponding to a predetermined connecting number is cut off so as to form a corrugated fin having a predetermined number of corrugated-plate portions.

Abstract translation: 平板连接部分通过连接部分形成单元形成在带板中。 平板连接部分除了一个平板连接部分之外被另一个连接部分形成单元切掉，以形成波纹板连接部分。 波纹板部分由波纹形成单元形成，使得波纹板部分具有在带板的宽度方向上布置的多个突起，并且每个突起沿板馈送方向延伸。 对应于预定连接数的波纹板连接部分被切断，以便形成具有预定数量波纹板部分的波纹状散热片。

公开(公告)号：US20130180698A1

公开(公告)日：2013-07-18

申请号：US13741462

申请日：2013-01-15

Applicant: DENSO CORPORATION

Inventor： Kazuhiro Mitsukawa ,  Masafumi Takahashi ,  Keisuke Nakamura ,  Hidemasa Otsubo ,  Nobuyuki Morikawa

IPC: B21D53/02 ,  B21D13/00 ,  B23P15/26

CPC classification number: B21D53/022 ,  B21D13/00 ,  B21D13/04 ,  B23P15/26 ,  F28D2021/0089 ,  F28F1/128 ,  F28F1/40 ,  F28F2215/08 ,  Y10T29/5142

Abstract: Flat-plate connecting portions are formed in a band plate by a connecting-portion forming unit. The flat-plate connecting portions are cut off by another connecting-portion forming unit except one flat-plate connecting portion so as to form a corrugated-plate connecting portion. A corrugated-plate portion is formed by a corrugation forming unit, so that the corrugated-plate portion has multiple projections arranged in a width direction of the band plate and each of the projections extends in a plate feeding direction. The corrugated-plate connecting portion corresponding to a predetermined connecting number is cut off so as to form a corrugated fin having a predetermined number of corrugated-plate portions.

Abstract translation: 平板连接部分通过连接部分形成单元形成在带板中。 平板连接部分除了一个平板连接部分之外被另一个连接部分形成单元切掉，以形成波纹板连接部分。 波纹板部分由波纹形成单元形成，使得波纹板部分具有在带板的宽度方向上布置的多个突起，并且每个突起沿板馈送方向延伸。 对应于预定连接数的波纹板连接部分被切断，以便形成具有预定数量波纹板部分的波纹状散热片。

公开(公告)号：US10220431B2

公开(公告)日：2019-03-05

申请号：US15043674

申请日：2016-02-15

Applicant: DENSO CORPORATION

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

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

Abstract: 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.