公开(公告)号：US20250012605A1

公开(公告)日：2025-01-09

申请号：US18891702

申请日：2024-09-20

Applicant: NHK SPRING CO., LTD.

Inventor： Shinji IINO ,  Saiji UETSUHARA ,  Takuya SATO

IPC: G01D5/14 ,  B60G15/06 ,  B60G17/019 ,  B60G17/08 ,  G01B7/30 ,  G01D5/16

Abstract: A displacement detection device includes a first fixed member, a coil spring including a first end turn portion and a second end turn portion, a rotating member in contact with the first end turn portion, a second fixed member in contact with the second end turn portion, and a detection device capable of detecting an amount of rotation of the coil spring. The rotating member is rotatably supported using a bearing, and the bearing is in contact with the first fixed member and the rotating member.

公开(公告)号：US20240424850A1

公开(公告)日：2024-12-26

申请号：US18826700

申请日：2024-09-06

Applicant: NHK SPRING CO., LTD.

Inventor： Shinji IINO ,  Saiji UETSUHARA ,  Takuya SATO

IPC: B60G11/20 ,  B60G7/00

Abstract: A torsion bar unit includes a cylindrical shaped torsion bar including a fiber-reinforced composite material and extending in a first direction, a first holding member having a first groove for holding an end part of the torsion bar, and a second holding member having a second groove for holding the end part of the torsion bar at a position opposite the first groove and sandwiching and holding the end part of the torsion bar between the first groove and the second groove by overlapping the first holding member and the second holding member.

公开(公告)号：US20210362274A1

公开(公告)日：2021-11-25

申请号：US17395684

申请日：2021-08-06

Applicant: NHK SPRING CO., LTD.

Inventor： Takuya SATO ,  Yuichiro YAMAUCHI ,  Takeshi FURUSE ,  Ryo TANAKA

IPC: B23K26/354 ,  B21F3/04 ,  B21F11/00 ,  B23K26/08 ,  B23K26/00

Abstract: A coiling machine includes a laser heating machine configured to irradiate a wire formed into a helical shape with laser light to thereby heat a part of the wire, and cutting components configured to cut a portion of the wire after the irradiation of the laser light is stopped, a temperature of the portion being higher than before irradiated with the laser light.

公开(公告)号：US20210323047A1

公开(公告)日：2021-10-21

申请号：US17360948

申请日：2021-06-28

Applicant: NHK SPRING CO., LTD.

Inventor： Takeshi FURUSE ,  Daiki HAGIWARA ,  Takuya SATO ,  Yuichiro YAMAUCHI

IPC: B21F3/06 ,  B21F11/00 ,  B21F35/00

Abstract: A coiling machine includes feed rollers for moving a wire, a wire guide, a first forming roller, a second forming roller, a pitch tool, a cutting mechanism, and a support mechanism for supporting the wire. The cutting mechanism includes a cutting rotor. The wire coming out of the wire guide is formed into a helical shape by the first forming roller, the second forming roller and the pitch tool. After one coil spring of a predetermined length is formed, the wire is cut by moving the cutting rotor in the radial direction of the wire. The cutting rotor cuts the wire supported by the support mechanism in the radial direction of the wire between the second forming roller and the pitch tool.