公开(公告)号：EP3190031A1

公开(公告)日：2017-07-12

申请号：EP15837280.5

申请日：2015-09-03

申请人： Nippon Steel & Sumitomo Metal Corporation

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

IPC分类号： B62D21/02 ,  B62D25/04 ,  B62D25/20

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 ho 1 and a first region inner height hi 1 have a constant value and the difference between the first region outer height ho 1 and the first region inner height hi 1 is smaller than the difference between a second region outer height ho 2 and a second region inner height hi 2 ; in a second region, the second region outer height ho 2 has a value which is larger than the second region inner height hi 2 and constant, or the second region outer height ho 2 has a value which is smaller than the second region inner height hi 2 and constant; in a first transition region, a first transition region outer height ho 1∼2 is continuously varied between the first region outer height ho 1 and the second region outer height ho 2 , and a first transition region inner height hi 1∼2 is continuously varied between the first region inner height hi 1 and the second region inner height hi 2 .

摘要翻译： 该汽车构件具有封闭截面，该封闭截面包括接合部分，其中内板的两个侧壁的边缘部分与外板的两个侧壁的边缘部分接合，其中在第一区域中，第一区域外部高度ho1 并且第一区域内部高度hi1具有恒定值并且第一区域外部高度ho1与第一区域内部高度hi1之间的差值小于第二区域外部高度ho2与第二区域内部高度hi2之间的差值; 在第二区域中，第二区域外部高度ho2具有大于第二区域内部高度hi2且恒定的值，或者第二区域外部高度ho2具有小于第二区域内部高度hi2且恒定的值; 在第一过渡区域中，第一过渡区域外部高度ho1〜2在第一区域外部高度ho1和第二区域外部高度ho2之间连续变化，并且第一过渡区域内部高度hi1〜2在第一区域 内部高度hi1和第二区域内部高度hi2。

公开(公告)号：EP3103578A1

公开(公告)日：2016-12-14

申请号：EP15760701.1

申请日：2015-03-16

申请人： Nippon Steel & Sumitomo Metal Corporation

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

IPC分类号： B23K11/11 ,  B23K11/00 ,  B23K11/16 ,  B60R19/04 ,  B60R19/34 ,  B62D25/04 ,  B62D25/08 ,  B62D25/20 ,  C22C38/00 ,  C22C38/38

CPC分类号： B23K11/16 ,  B23K11/115 ,  B23K11/3009 ,  B23K11/31 ,  B23K35/02 ,  B23K35/0205 ,  B23K2201/006 ,  B23K2201/18 ,  B23K2201/185 ,  B23K2201/28 ,  B23K2203/04 ,  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 d ng (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 t ave (mm), the spot weld portion satisfies d ng > d(t ave ) 1/2 when 0.5 mm ≤ t ave ng > 1.05d when 1.1 mm ≤ t ave ≤ 2.6 mm, in accordance with the average thickness t ave (mm).

摘要翻译： 提供了可以减少焊接部分处的断裂的焊接结构。 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d ng（mm）时，点焊所使用的电极的前端直径为d（mm），在搭接部的钢板的平均厚度为t ave（mm），点焊部满足d 根据平均厚度t ave（mm），当1.1 mm‰¤¤¤2.6 mm时，0.5 mm‰t ave <1.1 mm，d ng> 1.05d时，ng> d（t ave）1/2。

公开(公告)号：EP3208487A1

公开(公告)日：2017-08-23

申请号：EP15851586.6

申请日：2015-10-16

申请人： Nippon Steel & Sumitomo Metal Corporation

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

IPC分类号： F16F7/12 ,  B60R19/34 ,  B62D21/15 ,  F16F7/00

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.

摘要翻译： 本发明提供一种冲击吸收部件10，其能够通过周期性屈曲吸收沿轴向施加的冲击载荷来减轻重量，同时确保吸收能量，其中冲击吸收部件10具备由金属板构成的主体部20， 与轴向垂直的横截面以及由金属片构成并且沿着轴向方向设置在主体中的中空部分的中心片30，主体20的多边形形状包括一对长边20a，20b ）彼此相对时，中心片30与主体20的多边形形状的长边（20a，20b）中的每一个接合，并且主体20的片厚度t1（mm）和片厚度t2 （mm）满足1.3×t1≤t2。