Title:
EXTERNAL JOINT MEMBER OF CONSTANT VELOCITY UNIVERSAL JOINT AND FRICTION PRESSURE WELDING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/032926
Kind Code:
A1
Abstract:
Disclosed is an external joint member (11) for a constant velocity universal joint provided with a cup portion (12) comprising track grooves (30, 31) formed on the inner periphery of the cup portion so that torque transmission elements (19, 41) engage with the track grooves (30, 31), and a shaft (13) formed on the bottom portion of the cup portion (12), wherein the external joint member (11) is composed of two members which are a cup member (12') and a shaft member (13'), a solid short shaft (31) of the cup member (12') and the solid shaft member (13') are subjected to friction pressure welding, both the cup member (12') and the shaft member (13') are made of medium-carbon steel, at least the cup member (12') comprises the short shaft (31) subjected to a forging process to have a diameter smaller than the bottom portion of the cup portion, a recess (32) is provided on an end surface of the short shaft (31) to form an annular joint surface (34), a recess (33) is provided on one end surface of the shaft member (13') to form an annular joint surface (35), and both the annular joint surfaces (34, 35) are abutted and subjected to friction pressure welding.
Inventors:
YOSHIDA KAZUHIKO (JP)
NAKAGAWA TOHRU (JP)
FUWA MORIYASU (JP)
SUZUKI TATSUYUKI (JP)
SHIBATA TAKAAKI (JP)
NAKAGAWA TOHRU (JP)
FUWA MORIYASU (JP)
SUZUKI TATSUYUKI (JP)
SHIBATA TAKAAKI (JP)
Application Number:
PCT/JP2011/068917
Publication Date:
March 15, 2012
Filing Date:
August 23, 2011
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
YOSHIDA KAZUHIKO (JP)
NAKAGAWA TOHRU (JP)
FUWA MORIYASU (JP)
SUZUKI TATSUYUKI (JP)
SHIBATA TAKAAKI (JP)
YOSHIDA KAZUHIKO (JP)
NAKAGAWA TOHRU (JP)
FUWA MORIYASU (JP)
SUZUKI TATSUYUKI (JP)
SHIBATA TAKAAKI (JP)
International Classes:
F16D3/20; B23K20/12; B23K20/22; B23K20/24
Foreign References:
| JP2010164181A | 2010-07-29 | |||
| JP2008208935A | 2008-09-11 | |||
| JP2008019983A | 2008-01-31 | |||
| JP2008087517A | 2008-04-17 | |||
| JP2006064060A | 2006-03-09 | |||
| JP2006218983A | 2006-08-24 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)
Kunihiko Shiromura (JP)
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Claims:
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