Title:
SLIDING SPLINE SHAFT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/225203
Kind Code:
A1
Abstract:
This sliding spline shaft device is provided with male splines, and female splines which fit together with the male splines so as to be capable of moving in the axial direction, with at least one of the sets of splines having a surface-treated layer. The surface-treated layer has, in order, an undercoat layer, an intermediate layer containing phosphate, and a topcoat layer containing a solid lubricant. The undercoat layer contains iron nitride and/or iron carbide, and a base material surface has high hardness; therefore, there is little microscopic deformation of the sliding surface and an increase in the real contact area can be suppressed, thereby preventing stick-slip.
Inventors:
KASHIWABARA SHIGETOSHI (JP)
KATADA KUNIO (JP)
HIRAIWA SHUNSUKE (JP)
KAWAGUCHI AKIHUMI (JP)
NISHIJIMA TAKEO (JP)
SUZUKI SHINICHI (JP)
KATSUMADA YASUYUKI (JP)
NAKAJIMA MAKOTO (JP)
KODAMA TOKUNORI (JP)
ITO MASATO (JP)
IWASA AIKI (JP)
KATADA KUNIO (JP)
HIRAIWA SHUNSUKE (JP)
KAWAGUCHI AKIHUMI (JP)
NISHIJIMA TAKEO (JP)
SUZUKI SHINICHI (JP)
KATSUMADA YASUYUKI (JP)
NAKAJIMA MAKOTO (JP)
KODAMA TOKUNORI (JP)
ITO MASATO (JP)
IWASA AIKI (JP)
Application Number:
PCT/JP2019/015959
Publication Date:
November 28, 2019
Filing Date:
April 12, 2019
Export Citation:
Assignee:
NISSAN MOTOR (JP)
NIHON PARKERIZING (JP)
NIHON PARKERIZING (JP)
International Classes:
F16D1/02; C10M103/02; C10M103/06; C23C8/22; C23C8/30; C23C8/50; F16D3/06
Domestic Patent References:
| WO2014061655A1 | 2014-04-24 |
Foreign References:
| JP2016196922A | 2016-11-24 | |||
| JPH0436458A | 1992-02-06 | |||
| JP2004360707A | 2004-12-24 | |||
| JP2008019916A | 2008-01-31 | |||
| JP2010111906A | 2010-05-20 | |||
| JP2013189569A | 2013-09-26 |
Other References:
See also references of EP 3798459A4
Attorney, Agent or Firm:
MATOBA, MOTONORI (JP)
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