公开(公告)号：US20180281035A1

公开(公告)日：2018-10-04

申请号：US15843306

申请日：2017-12-15

Applicant: DENSO CORPORATION

Inventor： Chiaki SASAKI ,  Kenta TATEYAMA ,  Hidemasa OTSUBO ,  Kengo TAKESHITA

IPC: B21B1/24

Abstract: A steel strip is fed and compressed between a driving roller and a compression roller to generate a stress greater than a yield stress in the steel strip and to elongate one periphery portion of the steel strip, which is on one side, more than the other periphery portion of the steel strip, which is on the other side, in a sending direction. The compression roller includes a first contact portion and a second contact portion. The second contact portion extends from an end of the first contact portion in the axial direction of the compression roller. The end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.

公开(公告)号：US20170050233A1

公开(公告)日：2017-02-23

申请号：US15342394

申请日：2016-11-03

Applicant: DENSO CORPORATION

Inventor： Hidemasa OTSUBO ,  Masahiro SHIMOYA ,  Yoshinobu HAYAKAWA ,  Kengo TAKESHITA

IPC: B21D53/02 ,  F28F1/04 ,  F28F3/02 ,  B21J5/12

CPC classification number: B21D53/022 ,  B21J5/12 ,  F28F1/04 ,  F28F3/022 ,  F28F3/048

Abstract: A protrusion forming device includes a holding portion holding an object that is be processed, a tool bit having a cutting portion capable of cutting an object held by a holding portion, and a drive portion capable of driving the tool bit. The tool bit is movable along a cut-in pathway so that the cutting portion is inserted into the object. The cutting portion is movable along a further-cut pathway so as to form a protrusion part that is cut in a linear shape and is connected to the object. The tool bit continuously contacts the protrusion part while moving along a forming pathway such that the protrusion part extends perpendicular to an outer surface of the object.

Abstract translation: 突起形成装置包括保持被处理物体的保持部，具有能够切割由保持部保持的物体的切割部的刀头和能够驱动刀头的驱动部。 工具钻头沿着切入通道可移动，使切割部分插入到物体中。 切割部分可以沿着另一切割路径移动，以形成被切割为直线形状并连接到物体的突出部分。 工具钻头在沿着成形路径移动的同时连续地接触突出部分，使得突出部分垂直于物体的外表面延伸。