Title:
BALL JOINT SEAL STRUCTURE AND FERRULE RING MOUNTING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/162678
Kind Code:
A1
Abstract:
This ball joint seal structure has a ferrule ring interposed between the small-diameter opening of a dust cover and a knuckle. The ball joint connects the knuckle to a stud, and a ball head on the end of the stud is housed in a socket so as to be rockable and rotatable. A dust cover has a large-diameter opening surrounding the socket that houses the ball head, and the small-diameter opening surrounding the stud, the large-diameter opening and the small-diameter opening being connected by a membrane. The ferrule ring is provided with an annular portion that suppresses entrance of dust through a notch that occurs when, for example, a pinch bolt knuckle is employed, and has, at the outer peripheral end, an inclined portion that is inclined toward the dust cover side.
Inventors:
SASAKI NAOYA (JP)
HOSEN TATSURO (JP)
HOSEN TATSURO (JP)
Application Number:
PCT/JP2023/004021
Publication Date:
August 31, 2023
Filing Date:
February 07, 2023
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16C11/06
Domestic Patent References:
| WO2017018169A1 | 2017-02-02 |
Foreign References:
| US6357956B1 | 2002-03-19 | |||
| JP2015152058A | 2015-08-24 | |||
| JP2011064208A | 2011-03-31 | |||
| JP2011064208A | 2011-03-31 | |||
| JP2016125625A | 2016-07-11 |
Attorney, Agent or Firm:
KIRIYAMA Hiroshi et al. (JP)
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