公开(公告)号：US20170233005A1

公开(公告)日：2017-08-17

申请号：US15519034

申请日：2015-10-16

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yasunori SAWA ,  Yoshiaki NAKAZAWA ,  Koichi HAMADA ,  Yasunori ITO ,  Hiroshi YOSHIDA

IPC分类号： B62D21/15 ,  F16F7/12 ,  B60R19/34

CPC分类号： B62D21/15 ,  B60R19/34 ,  B62D21/152 ,  B62D21/157 ,  B62D25/00 ,  F16F7/00 ,  F16F7/12 ,  F16F2224/0233

摘要： An impact absorbing member 10 able to secure absorption energy while lightening weight by absorbing the impact load applied in the axial direction by periodic buckling, wherein the impact absorbing member 10 is provided with a main body 20 comprised of metal sheet and having a polygonal shape in cross-section vertical to an axial direction and a center sheet 30 comprised of metal sheet and provided at a hollow part in the main body along the axial direction, the polygonal shape of the main body 20 includes a pair of long side (20a, 20b) facing each other, the center sheet 30 is joined to each of the long sides (20a, 20b) of the polygonal shape of the main body 20, and the sheet thickness t1 (mm) of the main body 20 and the sheet thickness t2 (mm) of the center sheet 30 satisfy 1.3×t1≦t2.

公开(公告)号：US20170233008A1

公开(公告)日：2017-08-17

申请号：US15502114

申请日：2015-09-03

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Kenichiro OTSUKA ,  Yoshiaki NAKAZAWA ,  Ryuichi NISHIMURA ,  Yasunori SAWA ,  Atsushi ONO ,  Takeshi KAWACHI

IPC分类号： B62D25/02 ,  B62D21/15 ,  B62D25/04

CPC分类号： B62D25/025 ,  B62D21/02 ,  B62D21/15 ,  B62D25/04 ,  B62D25/20

摘要： This automobile member has a closed cross section including joint portions in which edge portions of two side walls of an inner panel are joined with edge portions of two side walls of an outer panel, in which in a first region, a first region outer height ho1 and a first region inner height hi1 have a constant value and the difference between the first region outer height ho1 and the first region inner height hi1 is smaller than the difference between a second region outer height ho2 and a second region inner height hi2; in a second region, the second region outer height ho2 has a value which is larger than the second region inner height hi2 and constant, or the second region outer height ho2 has a value which is smaller than the second region inner height hi2 and constant; in a first transition region, a first transition region outer height ho1˜2 is continuously varied between the first region outer height ho1 and the second region outer height ho2, and a first transition region inner height hi1˜2 is continuously varied between the first region inner height hi1 and the second region inner height hi2.

公开(公告)号：US20170129314A1

公开(公告)日：2017-05-11

申请号：US15322349

申请日：2014-06-30

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yasunori SAWA ,  Yoshiaki NAKAZAWA

IPC分类号： B60J5/04

CPC分类号： B60J5/0443 ,  B60J5/0437 ,  B60J5/0444 ,  B60J5/0483 ,  B60R21/02 ,  B60R2021/0006 ,  B60Y2410/121 ,  B60Y2410/124

摘要： A main body (2) has door attaching portions respectively formed on both end sides of a long longitudinal direction thereof and a bending deformation generation portion (3) disposed between the door attaching portions, and the bending deformation generation portion (3) has a groove bottom portion (4), two edge line portions (5a, 5b), two vertical wall portions (6a, 6b), two curved portions (7a, 7b), and two flanges (8a, 8b). There is provided a bead (13) which is formed toward the longitudinal direction of the main body (2) in a part of the groove bottom portion (4) in a manner to project in a shape having a curved surface toward the outside of a cross-sectional shape of the bending deformation generation portion (3) so as to oppose an impact load acting on a door impact beam (1).

公开(公告)号：US20170008119A1

公开(公告)日：2017-01-12

申请号：US15120543

申请日：2015-03-16

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yoshiaki NAKAZAWA ,  Tohru OKADA ,  Yasuhiro ITO ,  Masanori YASUYAMA ,  Yasunori SAWA

IPC分类号： B23K11/16 ,  B23K11/11 ,  B23K11/30 ,  F16B5/08

CPC分类号： B23K11/16 ,  B23K11/115 ,  B23K11/3009 ,  B23K11/31 ,  B23K35/02 ,  B23K35/0205 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2101/185 ,  B23K2101/28 ,  B23K2103/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/38 ,  F16B5/08

摘要： There is provided a welded structure that can reduce fractures at welded portions. The welded structure includes two or three steel sheets and a lapped portion in which the steel sheets are overlapped and joined by spot welding at a plurality of locations, the welded structure including a spot weld portion, and, when a diameter of a nugget is dng (mm), a tip diameter of an electrode used by the spot welding is d (mm), and an average thickness per steel sheet of the steel sheets at the lapped portion is tave (mm), the spot weld portion satisfies dng>d(tave)1/2 when 0.5 mm≦tave 1.05d when 1.1 mm≦tave≦2.6 mm, in accordance with the average thickness tave (mm).

摘要翻译： 提供了能够减少焊接部的断裂的焊接结构。 焊接结构包括两个或三个钢板和一个重叠部分，其中钢板在多个位置上通过点焊重叠和接合，焊接结构包括点焊部分，并且当熔核直径为dng （mm）时，通过点焊所使用的电极的端部直径为d（mm），并且，在研磨部分的钢板的平均厚度为平均（mm），点焊部分满足d 根据平均厚度tave（mm），当1.1mm≤Tave≤2.6mm时，0.5mm≤Tave<1.1mm，dng> 1.05d时，（Tave）1/2。