Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BALL JOINT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2014/171199
Kind Code:
A1
Abstract:
Provided is a technique whereby a DLC film having a desired surface roughness and a desired film hardness can be easily formed within a short period of time while preventing cost increase so that a large quantity of boll joints, which are less expensive and yet have stable sliding characteristics, can be supplied. A method for manufacturing a ball joint provided with a ball stud that has a spherical surface section and a holder section that pivotally holds the spherical surface section, said method comprising: an intermediate underlayer-forming step for forming an intermediate underlayer, that has a fine irregular surface structure, on the surface of the spherical surface section using a sputtering method; and an amorphous hard carbon film-forming step for forming an amorphous hard carbon film, that has a root mean square roughness on the surface of 6.5-35 nm, on the intermediate underlayer using a PIG plasma film formation method.

More Like This:
Inventors:
MIYAKE, Koji (INC. 575, Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
NISHIUMI, Ryohei (INC. 575, Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
KOMORI, Kentaro (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
Application Number:
JP2014/055280
Publication Date:
October 23, 2014
Filing Date:
March 03, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON ITF, INC. (575 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
HONDA MOTOR CO., LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 〒1078556, JP)
International Classes:
F16C11/06; C23C14/14; C23C16/27
Domestic Patent References:
2012-06-28
Foreign References:
JP2008163430A2008-07-17
JP2000042802A2000-02-15
JP2005500489A2005-01-06
JPH084770A1996-01-09
Attorney, Agent or Firm:
JODAI, Tetsuji et al. (2/F Shin-Yamamoto Bldg, 1-1-25 Dojima, Kita-ku, Osaka-sh, Osaka 03, 〒5300003, JP)
Download PDF: