Invention Grant
- Patent Title: Ball joint manufacturing method and stabilizer link manufacturing method
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Application No.: US16497988Application Date: 2018-03-23
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Publication No.: US11179992B2Publication Date: 2021-11-23
- Inventor: Shigeru Kuroda
- Applicant: NHK SPRING CO., LTD.
- Applicant Address: JP Kanagawa
- Assignee: NHK SPRING CO., LTD.
- Current Assignee: NHK SPRING CO., LTD.
- Current Assignee Address: JP Kanagawa
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2017-071678 20170331
- International Application: PCT/JP2018/011746 WO 20180323
- International Announcement: WO2018/181010 WO 20181004
- Main IPC: B60G21/055
- IPC: B60G21/055 ; F16C11/06

Abstract:
The ball joint manufacturing method for manufacturing a ball joint including a ball stud which includes a substantially spherical metal ball section, and a resin housing rotatable accommodating the ball section of the ball stud, includes: a step of forming the housing to cover an outer periphery of the ball section; an induction heating step of subjecting the ball section to induction heating in a state in which the ball section is accommodated in an accommodation section of the housing until the temperature of the ball section reaches a predetermined target temperature; and a cooling step of cooling the ball section which has been subjected to the induction heating, wherein a torque adjustment step including the induction heating step and the cooling step is repeatedly performed.
Public/Granted literature
- US20200039317A1 BALL JOINT MANUFACTURING METHOD AND STABILIZER LINK MANUFACTURING METHOD Public/Granted day:2020-02-06
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