Title:
Ball joint
Document Type and Number:
Japanese Patent JP6214463
Kind Code:
B2
Abstract:
Provided is a ball joint that is less affected by fluctuations in environmental temperature, and is capable of stabilizing a torque value required to rock a ball stud in a holder. The ball joint includes: a ball stud (1) including: a shaft member (11); and a ball portion (10) formed at one end of the shaft member (11); and a holder (2) made of a synthetic resin and configured to accommodate the ball portion in a pivotable manner. The holder (2) includes: an opening portion (30) from which the shaft member protrudes; a first member (20) including a first ball sliding contact surface (24) having a concave spherical shape approximate to a spherical surface of the ball portion; and a second member (3) including: a second ball sliding contact surface (31) having a concave spherical shape approximate to the spherical surface of the ball portion; and the opening portion (30) formed in a center of the second ball sliding contact surface. Further, the first member (20) and the second member (3) respectively include joining surfaces (25, 32) fixed to each other by welding, and respectively include fixation reference surfaces (28, 34) that are brought into abutment against each other.
Inventors:
Hisashi Konno
Tokaibayashi
Inoko Kaishi
Tokaibayashi
Inoko Kaishi
Application Number:
JP2014101055A
Publication Date:
October 18, 2017
Filing Date:
May 15, 2014
Export Citation:
Assignee:
THK CO.,LTD.
International Classes:
F16C11/06
Domestic Patent References:
| JP2013177980A | ||||
| JP667919U | ||||
| JP2000213525A | ||||
| JP5863422U |
Foreign References:
| US5921698 |
Attorney, Agent or Firm:
Tetsuro Ide
Katsuo Naruse
Tomohiro Nakamura
Katsuo Naruse
Tomohiro Nakamura