公开(公告)号：US20170349962A1

公开(公告)日：2017-12-07

申请号：US15534472

申请日：2015-12-04

申请人： NHK SPRING CO., LTD.

发明人： Shinichiro KUWATSUKA ,  Yurika OKUDAIRA ,  Akira TANGE ,  Hideki OKADA ,  Ken TAKAHASHI

IPC分类号： C21D9/00 ,  B21D47/00 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/44 ,  B21D53/88 ,  C21D8/06 ,  C21D7/06 ,  C21D6/00 ,  C21D1/60 ,  B60G21/055 ,  B24C1/10 ,  C22C38/54

CPC分类号： C21D9/0068 ,  B21D47/00 ,  B21D53/88 ,  B24C1/10 ,  B60G21/055 ,  B60G2206/427 ,  B60G2206/724 ,  B60G2206/81035 ,  B60G2206/8402 ,  B60G2206/8403 ,  C21D1/60 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D7/06 ,  C21D8/065 ,  C21D9/0075 ,  C21D9/02 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C22C38/60 ,  F16F1/14

摘要： A stabilizer formed by using a metal bar having a solid structure and configured to reduce a displacement between right and left wheels, including a torsion part extending in a vehicle width direction, being capable of a torsional deformation, and having a diameter of 10 to 32 mm, is provided. The stabilizer has a chemical composition containing at least C: 0.15% by mass or more to 0.39% by mass or less, Mn, B, and Fe, and also has a metal structure 90% or more of which is a martensite structure.

公开(公告)号：US20200023707A1

公开(公告)日：2020-01-23

申请号：US16586692

申请日：2019-09-27

申请人： NHK SPRING CO., LTD.

发明人： Norihiro KAWAKAMI ,  Yurika OKUDAIRA ,  Yuushi NOGAMI

IPC分类号： B60G21/055 ,  F16F1/14 ,  B21D7/024

摘要： A hollow stabilizer includes a curved part having eight regions defined in a cross section. A first region includes a 90° first part when the center of the inside of the curve is taken to be at 0° and the center of the outside of the curve is taken to be at 180°. A third region includes a 0° third part. A fifth region includes a 270° fifth part. A seventh region includes a 180° seventh part. The radii of curvature of the respective outer surfaces of the third part and the seventh part are larger and the radii of curvature of the respective outer surfaces of the second part and the sixth part are smaller than the radii of curvature of the respective outer surfaces of the fourth part and the fifth part.

公开(公告)号：US20170349961A1

公开(公告)日：2017-12-07

申请号：US15534470

申请日：2015-12-07

申请人： NHK SPRING CO., LTD.

发明人： Shinichiro KUWATSUKA ,  Yurika OKUDAIRA ,  Akira TANGE ,  Hideki OKADA ,  Ken TAKAHASHI

IPC分类号： C21D9/00 ,  B21D53/88 ,  B24C1/10 ,  C21D1/60 ,  C21D6/00 ,  B21D47/00 ,  C21D8/06 ,  C22C38/00 ,  C22C38/54 ,  C22C38/44 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C21D7/06 ,  F16F1/02 ,  F16F1/14 ,  B60G21/055

CPC分类号： C21D9/0068 ,  B21D47/00 ,  B21D53/88 ,  B24C1/10 ,  B60G21/055 ,  B60G2206/724 ,  B60G2206/8103 ,  B60G2206/8402 ,  B60G2206/8403 ,  C21D1/60 ,  C21D6/00 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D7/06 ,  C21D8/06 ,  C21D8/065 ,  C21D9/00 ,  C21D9/0075 ,  C21D9/02 ,  C21D9/08 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C22C38/60 ,  F16F1/02 ,  F16F1/021 ,  F16F1/14 ,  F16F2224/0208 ,  F16F2226/00

摘要： The invention provides a production method for stabilizers which produces with high productivity in a compact production line, without tempering. The production method for stabilizers of the invention includes: forming a steel bar material containing at least C: 0.15 wt % to 0.39 wt %, Mn, B and Fe into a product shape by bending; and quenching the bent steel bar material in a medium having a heat transfer coefficient higher than or close to that of water.

公开(公告)号：US20210316589A1

公开(公告)日：2021-10-14

申请号：US17355520

申请日：2021-06-23

申请人： NHK SPRING CO., LTD.

发明人： Norihiro KAWAKAMI ,  Yurika OKUDAIRA ,  Yuushi NOGAMI

IPC分类号： B60G21/055 ,  B21D7/024 ,  F16F1/14

摘要： A hollow stabilizer includes a curved part having eight regions defined in a cross section. A first region includes a 90° first part when the center of the inside of the curve is taken to be at 0° and the center of the outside of the curve is taken to be at 180°. A third region includes a 0° third part. A fifth region includes a 270° fifth part. A seventh region includes a 180° seventh part. The radii of curvature of the respective outer surfaces of the third part and the seventh part are larger and the radii of curvature of the respective outer surfaces of the second part and the sixth part are smaller than the radii of curvature of the respective outer surfaces of the fourth part and the fifth part.