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Title:
POWER TRANSMISSION SHAFT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/003702
Kind Code:
A1
Abstract:
A propeller shaft (1) that is a power transmission shaft has: a shaft member (2) that comprises an iron-based metal and is formed as a cylindrical body; and a balance weight (3) that is welded to the outer circumferential surface of the shaft member (2) and comprises an iron-based metal. In addition, in the propeller shaft (1), at least a part of the balance weight (3) is coated with a sacrificial metal coat (4) that comprises a sacrificial anticorrosion material that contains a metal having a greater ionization tendency than a metal that constitutes the shaft member (2). Accordingly, it is possible to inhibit local progress of corrosion in the surrounding area of the balance weight (3) and improve durability of the propeller shaft (1).

Inventors:
MABE, Yasutomo (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
NAKANE, Kiyokazu (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
KOMAI, Hiromichi (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
ZHU, Xiaojin (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
MASUDA, Toshiyuki (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
ISHIKURA, Kenichiro (7-1, Onna 4-chome, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
Application Number:
JP2018/019227
Publication Date:
January 03, 2019
Filing Date:
May 18, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
B60K17/22; F16C3/02; F16F15/12; F16F15/32
Domestic Patent References:
WO2016154239A12016-09-29
Foreign References:
JP2011012775A2011-01-20
JP2001193795A2001-07-17
JP2015135144A2015-07-27
JP2015113964A2015-06-22
JP2002088806A2002-03-27
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, 〒1040044, JP)
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