公开(公告)号：US11571943B2

公开(公告)日：2023-02-07

申请号：US17355520

申请日：2021-06-23

Applicant: NHK SPRING CO., LTD.

Inventor： Norihiro Kawakami ,  Yurika Okudaira ,  Yuushi Nogami

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

Abstract: 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：US11167615B2

公开(公告)日：2021-11-09

申请号：US16586692

申请日：2019-09-27

Applicant: NHK SPRING CO., LTD.

Inventor： Norihiro Kawakami ,  Yurika Okudaira ,  Yuushi Nogami

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

Abstract: 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：US20250033428A1

公开(公告)日：2025-01-30

申请号：US18716979

申请日：2022-12-22

Applicant: NHK SPRING CO., LTD.

Inventor： Tomoyuki Miyasaka ,  Rintaro Fujimura ,  Norihiro Kawakami

IPC: B60G21/055

Abstract: A stabilizer manufacturing method includes forming a first end and a second end of a stabilizer by processing a tubular member such that each of the first end and the second end has a wall thickness equivalent to a wall thickness of a main body of the stabilizer. The first end and the second end constitutes both ends of the stabilizer, and the first end and the second end are formed by sandwiching and pressing the ends of the tubular member by two pairs of pressing members, facing directions of the two pairs of pressing members being different from each other.