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1. 发明公开

EP4011517A1 METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE 审中-公开
公开(公告)号：EP4011517A1
公开(公告)日：2022-06-15
申请号：EP20849136.5
申请日：2020-08-06
申请人： NIPPON STEEL CORPORATION
发明人： YAMAZAKI, Shohei , NISHIMURA, Ryuichi , HAMADA, Koichi , OISHI, Takuya , YOSHIDA, Tohru
IPC分类号： B21D22/20 , B21D22/26 , B21D28/26 , B21D53/88 , B62D25/10
摘要： A method for manufacturing a press-formed product is provided that can suppress occurrence of a forming defect such as a crack in a starting material during press forming, and can also suppress occurrence of problems when transferring a starting material during press forming. In the method for manufacturing a press-formed product, a manufacturing intermediate is formed by forming, in a flat-sheet shaped blank sheet, a planned outline portion including an undulating shape which is used for forming an outline of an outer circumferential portion of a press-formed product. Further, the flat shape of the blank sheet is maintained in a region from the planned outline portion toward the center of the manufacturing intermediate, or an intermediate stretch-formed portion having a predetermined intermediate forming height is formed in the manufacturing intermediate in the region. Furthermore, a through-hole is formed by piercing a flat portion at which the flat shape is maintained or a stretch-formed-side top portion of the intermediate stretch-formed portion. In addition, the flat portion after the through-hole is formed therein is formed into a stretch-formed portion of a predetermined height, or the intermediate stretch-formed portion after the through-hole is formed therein is formed into a stretch-formed portion of a predetermined height that is greater than the intermediate forming height.

2. 发明授权

EP3037187B1 PRODUCTION METHOD FOR PRESS-MOLDED BODY, AND PRESS MOLDING DEVICE 有权转让
公开(公告)号：EP3037187B1
公开(公告)日：2020-11-04
申请号：EP14852088.5
申请日：2014-09-10
申请人： Nippon Steel Corporation
发明人： OTSUKA, Kenichiro , NAKAZAWA, Yoshiaki , NISHIMURA, Ryuichi , ITO, Yasuhiro
IPC分类号： B21D22/26 , B21D22/20 , B21D24/00 , B62D25/20

3. 发明授权

EP3401193B1 VEHICLE REAR STRUCTURE 有权转让
公开(公告)号：EP3401193B1
公开(公告)日：2020-08-12
申请号：EP17736009.6
申请日：2017-01-06
申请人： Nippon Steel Corporation
发明人： NAKAZAWA, Yoshiaki , NISHIMURA, Ryuichi
IPC分类号： B62D25/20 , B62D25/08 , B62D21/02 , B62D21/15 , B62D29/00

4. 发明公开

EP4316953A1 AUTOMOBILE PANEL AND METHOD FOR MANUFACTURING SAME 审中-实审
公开(公告)号：EP4316953A1
公开(公告)日：2024-02-07
申请号：EP22816243.4
申请日：2022-06-06
申请人： NIPPON STEEL CORPORATION
发明人： NISHIMURA, Ryuichi , SAWA, Yasunori , HAMADA, Koichi
IPC分类号： B62D25/10 , B62D25/06 , F16B5/08
摘要： An automobile hood 1 has joints 20 that join an inner panel 2 and an outer panel 3. The inner panel 2 includes, for example, units 8 and 9 arranged in plurality in an aligned relationship in a cross direction X and arranged in plurality in an aligned relationship in a longitudinal direction Y. The plurality of units 8 and 9 include a plurality of joint-equipped units in which the joint 20 is provided. A predetermined first form or second form is provided in the automobile hood 1. In the first form, in some of the joint-equipped units, namely, joint-equipped units 84, 89, and 9, the joints 20 are arranged in an arrangement including a predetermined pattern P1, and in the remaining joint-equipped units 81, 85, 86, 810, 811, and 812, the joints 20 are arranged in an arrangement including a part of the predetermined pattern P1. In the second form, in each of the joint-equipped units 8 and 9, a plurality of the joints 20 are arranged in an arrangement including the predetermined pattern P 1.

5. 发明公开

EP3912743A1 PRESS-FORMED ARTICLE MANUFACTURING METHOD, AND PRESS LINE 审中-公开
公开(公告)号：EP3912743A1
公开(公告)日：2021-11-24
申请号：EP20741382.4
申请日：2020-01-16
申请人： NIPPON STEEL CORPORATION
发明人： NISHIMURA, Ryuichi , SUZUKI, Toshiya
IPC分类号： B21C51/00 , B21D22/20 , B21D22/26 , B21D24/00 , B21D43/00
摘要： A method of manufacturing a press-formed product includes: capturing the amount of warp in a sheet to be pressed separately for each sheet; and using a die 6, a punch 7, and a movable mold part to press-form the sheet into a press-formed product. During press-forming, the initial position of the movable mold part 9 relative to the die 6 or punch 7 is controlled depending on the amount of warp in the sheet.

6. 发明授权

EP3219589B1 STRUCTURAL MEMBER 有权转让
公开(公告)号：EP3219589B1
公开(公告)日：2020-09-16
申请号：EP15872647.1
申请日：2015-12-01
申请人： Nippon Steel Corporation
发明人： OTSUKA, Kenichiro , NAKAZAWA, Yoshiaki , NISHIMURA, Ryuichi , ITO, Yasuhiro
IPC分类号： B62D25/20 , B62D25/00 , B62D21/15 , B62D25/02 , B62D25/08 , B62D27/02 , B62D29/00

7. 发明授权

EP3037327B9 STRUCTURAL MEMBER FOR AUTOMOBILE BODY 有权转让
公开(公告)号：EP3037327B9
公开(公告)日：2019-08-14
申请号：EP14852343.4
申请日：2014-09-30
申请人： Nippon Steel Corporation
发明人： NISHIMURA, Ryuichi , OTSUKA, Kenichiro , ITO, Yasuhiro , NAKAZAWA, Yoshiaki
IPC分类号： B62D25/20 , B62D29/00

8. 发明公开

EP4361004A1 PANEL STRUCTURE FOR AUTOMOBILE, AND MANUFACTURING METHOD OF PANEL STRUCTURE FOR AUTOMOBILE 审中-实审
公开(公告)号：EP4361004A1
公开(公告)日：2024-05-01
申请号：EP22864488.6
申请日：2022-08-29
申请人： NIPPON STEEL CORPORATION
发明人： YAKUSHIJIN, Yutaka , NISHIMURA, Ryuichi , SAWA, Yasunori
IPC分类号： B62D29/04 , B32B27/00
CPC分类号： B32B27/00 , B62D29/04 , B62D29/005 , B62D25/10 , B62D25/06 , B60J5/0484
摘要： This panel structure for an automobile (10) includes: an outer panel member (1) having a sheet shape; a resin member (2) that is disposed on an inner surface of the outer panel member (1); and an adhesive portion (3) that bonds the outer panel member (1) and the resin member (2), in which the outer panel member (1) includes a base metal (12) and a coating film (14) provided on the base metal (12), the base metal (12) has a sheet thickness of 0.3 mm to 0.5 mm, the resin member (2) has a bending rigidity of 0.3 × 106 N·mm2 or more, and the adhesive portion (3) contains a cured material of a room-temperature curing adhesive.

9. 发明公开

EP4279364A1 AUTOMOBILE PANEL 审中-实审
公开(公告)号：EP4279364A1
公开(公告)日：2023-11-22
申请号：EP22779428.6
申请日：2022-01-21
申请人： NIPPON STEEL CORPORATION
发明人： SAWA, Yasunori , NISHIMURA, Ryuichi
IPC分类号： B62D25/08 , B62D25/10
摘要： An automobile panel is provided in which sufficient surface rigidity is secured in an outer panel even at a location where a space between an inner panel and an outer panel is narrow, while also achieving a reduction in weight. An automobile panel 1 has a sheet-shaped outer panel 2 and a sheet-shaped inner panel 3, and an interior member 30 arranged in a space S between the inner panel 3 and the outer panel 2. The interior member 30 is an elongated member that extends in a first direction D1 along the outer panel 2, and includes a first end 41 that is one end in the first direction D1, and a second end 42 that is another end. The first end 41 has a first connecting portion 45 which is connected to the inner panel 3. The interior member 30 has a second connecting portion 46 that is connected to the outer panel 2, at a position that is separated from the first end 41 along the first direction D1.

10. 发明授权

EP3357795B1 VEHICLE BODY 有权转让
公开(公告)号：EP3357795B1
公开(公告)日：2019-07-17
申请号：EP18153684.8
申请日：2013-04-09
申请人： Nippon Steel Corporation
发明人： OTSUKA, Kenichiro , NISHIMURA, Ryuichi , NAKAZAWA, Yoshiaki
IPC分类号： B62D21/09 , B62D25/20 , B62D27/02 , B62D21/15

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