Title:
TORQUE TUNING METHOD AND TORQUE TUNING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/110485
Kind Code:
A1
Abstract:
In a torque tuning method according to the present invention, a ball stud (10) is rotated about an axial center of the ball stud (10) by a motor (22), and when a curve is drawn in which a rotational torque of the motor (22) rises and falls from the top during the rotation, and rises again from the bottom, the rotational torque at the bottom is determined as a reference value. Next, a ball part (10b) is included in a housing (11) by insert molding. Next, the ball stud (10) is rotated by the motor (22) about the axial center of the ball stud (10) at a speed higher than a speed at which an inner spherical surface (11a) covering the ball part (10b) is worn. Next, the rotational torque of the motor 22 is measured during the rotation. Next, when the measured rotational torque reaches the reference value, the motor (22) is stopped.
Inventors:
KURODA SHIGERU (JP)
NAGATA YUYA (JP)
NAGATA YUYA (JP)
Application Number:
PCT/JP2019/040399
Publication Date:
June 04, 2020
Filing Date:
October 15, 2019
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
International Classes:
F16C11/06; B60G21/055; F16C43/02
Foreign References:
| JPH0861356A | 1996-03-08 | |||
| JP2010096334A | 2010-04-30 | |||
| JP2017129223A | 2017-07-27 | |||
| JP2018173129A | 2018-11-08 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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