DUST COVER - NOK CORP

Title:

DUST COVER

Document Type and Number:

WIPO Patent Application WO/2018/056159

Kind Code:

A1

Abstract:

Provided is a dust cover in which external foreign objects and knuckle rust infiltrating a cutout in a pinch bolt ball joint do not accumulate on a seal part, thereby preventing wear from contact of the seal part with external foreign objects and knuckle rust that have accumulated. To achieve this purpose, in this dust cover (10), a spherical part in a stud having the spherical part and a shaft part is accommodated in a socket, and the dust cover (10) is mounted on a ball joint having a knuckle is fastened to the shaft part. The dust cover (10) is provided with a large-diameter opening fixed to the outer peripheral surface of the socket, a small-diameter opening (30) attached to the shaft part of the stud, and a film part (40) linking the large-diameter opening and the small-diameter opening (30) together. The small-diameter opening (30) is provided with a seal part (32) in close contact with the outer peripheral surface of the shaft part, and a contact part (33) in close contact with the knuckle. The contact part (33) has formed therein foreign object discharge grooves (35) that discharge external foreign objects that would accumulate in the small-diameter opening (30).

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Inventors:

SATO NORIAKI (JP)
HIROTA TAKUMA (JP)

Application Number:

PCT/JP2017/033221

Publication Date:

March 29, 2018

Filing Date:

September 14, 2017

Export Citation:

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Assignee:

NOK CORP (JP)

International Classes:

F16C11/06; F16J3/04; F16J15/52

Foreign References:

JP2007278352A	2007-10-25
US20090289424A1	2009-11-26
JP2006275259A	2006-10-12
JPS6243869U	1987-03-17
JP2003172334A	2003-06-20
JPH11108044A	1999-04-20

Other References: