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公开(公告)号：US10661328B2
公开(公告)日：2020-05-26
申请号：US15111548
申请日：2015-03-12
发明人： Yoshiyuki Kaseda , Yutaka Mikazuki
摘要： A production method of a wheel rim includes: a step of forming a cylindrical rim material into a rim shape; and a step of increasing a sheet thickness of at least one opening end edge of the rim material at least one of before and after the step of forming of the cylindrical rim material. In addition, in the step of increasing of the sheet thickness, in a state in which the opening end edge is inserted into an annular groove of a die provided with the annular groove which is wider than the sheet thickness of the opening end edge, a thickened portion is formed by exerting a compressive load in an axial direction of the rim material on the opening end edge.
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公开(公告)号：US10787142B2
公开(公告)日：2020-09-29
申请号：US16327089
申请日：2017-08-24
发明人： Yutaka Mikazuki , Eiji Isogai , Masahiro Nakata , Kenji Yamamoto
IPC分类号： B60R19/56
摘要： This supporting structure for an underrun protector includes a stay body that connects a beam and a frame to each other; a stay reinforcing body that reinforces the stay body from an outside in a vehicle width direction; and a gusset provided between the stay reinforcing body and the beam. A stay body web face of the stay body is provided with an opening part. A pair of wall face parts provided to extend outward in the vehicle width direction from both ends of the opening part in a vehicle forward-rearward direction is provided so as to face each other. Each of the wall face parts is provided at a height corresponding to an installation position of the gusset and abuts against an inner surface of the stay reinforcing body in the vehicle width direction.
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公开(公告)号：US10384251B2
公开(公告)日：2019-08-20
申请号：US15555656
申请日：2016-03-09
发明人： Eiji Isogai , Yutaka Mikazuki , Riki Okamoto
摘要： In performing burring processing on a sheet-like member, the following processes are performed: a punching process of performing punching processing of the sheet-like member; a hole expansion process of performing hole expansion processing of a punched hole formed by the punching process; a re-punching process of performing punching processing again on a portion surrounding the punched hole expanded by force in the hole expansion process; and a burring process of pushing a portion surrounding a re-punched hole that is a punched hole formed by the re-punching process and forming a vertical wall.
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公开(公告)号：US10603703B2
公开(公告)日：2020-03-31
申请号：US15515348
申请日：2015-09-30
发明人： Eiji Isogai , Nobusato Kojima , Riki Okamoto , Yutaka Mikazuki
摘要： The present invention provides a method of manufacturing a press-formed product. The method includes: a first process of preparing a material that is long in a first direction, and when viewed in a cross-section perpendicular to the first direction, the cross-section is a hollow cross-section that is long in a second direction perpendicular to the first direction; and a second process of bending the material in a direction intersecting the second direction when viewed from the first direction, by pressing the material along the second direction.
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公开(公告)号：US10427633B2
公开(公告)日：2019-10-01
申请号：US15546420
申请日：2016-02-01
发明人： Yutaka Mikazuki , Eiji Isogai , Kenji Yamamoto , Takashi Ariga , Seiya Ishii
摘要： [Object] To improve load resistance performance in response to collision.[Solution] An end structure of a vehicle according to the present invention includes: a beam 2 that extends in a vehicle width direction; and a connecting structure 3 that connects the beam 2 to a vehicle body frame. In a cross-sectional view perpendicular to the vehicle width direction, the beam 2 includes a first top surface part 2a and a first bottom surface part 2b which face each other, a first side surface part 2c that connects one ends of the first top surface part 2a and the first bottom surface part 2b, and first flange parts 2d that are formed to protrude vertically outwardly at the other ends of the first top surface part 2a and the first bottom surface part 2b. The beam 2 is fixed to the connecting structure 3 by at least one of bonding of a protrusion 6 that is provided in the connecting structure 3 and is arranged to protrude inside the beam 2 to the first top surface part 2a and the first bottom surface part 2b and bonding of a beam attachment member provided in the connecting structure 3 to the first flange parts 2d.
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