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Patent Searching and Data


Title:
BALL SEAT AND BALL JOINT
Document Type and Number:
WIPO Patent Application WO/2015/056592
Kind Code:
A1
Abstract:
Provided are a ball seat that can be efficiently assembled with high yield, and a ball joint provided with this ball seat. A ball joint (100) is provided with a ball seat (130) for slidably holding a ball part (113) of a ball stud (110). The ball seat (130) is accommodated in an accommodating part (125) of a socket (120), in a manner such that a stud-side holding part (131a) is deformed into an incline by a tapered part (125b) toward the ball part (113). A first groove part (132) is formed in the stud-side holding part (131a) in a holding part (131) of the ball seat (130). The first groove part (132) is formed only into a shape such that the curvature of the inner surface in a transverse cross section is a finite value, or specifically, is formed into a shape that does not include a shape such that the curvature of the inner surface is an infinite value. The first groove part is also shaped such that a primary derivative value of the distance (r(θ)) between the center line (CL) of the cylindrical holding part (131) and the inner surface of the first groove part (132) continually changes.

Inventors:
ICHIKAWA Hisashi (Hamamatsu-kojo500,Furukawa-cho,Minami-ku,Hamamatsu-sh, Shizuoka 60, 〒4358560, JP)
ITO Hiroaki (Hamamatsu-kojo500,Furukawa-cho,Minami-ku,Hamamatsu-sh, Shizuoka 60, 〒4358560, JP)
Application Number:
JP2014/076686
Publication Date:
April 23, 2015
Filing Date:
October 06, 2014
Export Citation:
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Assignee:
KABUSHIKI KAISHA SOMIC ISHIKAWA (1-34-6 Honjo, Sumida-ku Tokyo, 04, 〒1300004, JP)
International Classes:
F16C11/06
Foreign References:
JPH0337409A1991-02-18
JPH08326739A1996-12-10
JP2001263332A2001-09-26
JP2009144749A2009-07-02
JP2012077841A2012-04-19
JPS6439923U1989-03-09
JP2003262213A2003-09-19
Attorney, Agent or Firm:
ITO Hiroyuki (34-31, Aritamadai2-chomeHigashi-ku,Hamamatsu-sh, Shizuoka 26, 〒4313126, JP)
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