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Title:
CONSTANT VELOCITY UNIVERSAL JOINT
Document Type and Number:
WIPO Patent Application WO/2013/175960
Kind Code:
A1
Abstract:
This constant velocity universal joint is provided with an outer joint member (11) having an opening section (17) at one end thereof, and also with an inner joint member (12) for transmitting torque while allowing an angular displacement between the outer joint member (11) and the inner joint member (12) with balls (13) therebetween. The large-diameter end (22) of a boot (21) for closing the opening section (17) of the outer joint member (11) is mounted to the opening section (17) of the outer joint member (11), the small-diameter end (23) of the boot (21) is mounted to a shaft (15) extending from the inner joint member (12), and a lubricating agent (20) is enclosed within the inner space (25) formed by the outer joint member (11) and the boot (21). Ball bearings (26, 27) for holding the boot (21) at a standstill relative to the rotation of the outer joint member (11) and the shaft (15) are disposed between the opening section (17) of the outer joint member (11) and the large-diameter end (22) of the boot (21), and between the shaft (15) and the small-diameter end (23) of the boot (21). A boot guard section (66) is provided to a boot mounting adapter (54) to which the small-diameter end (23) of the boot (21) is mounted, and the boot guard section (66) prevents the boot (21) from interfering with the shaft (15).

Inventors:
KOBAYASHI Tomoshige (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
OSUGI Masafumi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
TAKABE Shinichi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
Application Number:
JP2013/062925
Publication Date:
November 28, 2013
Filing Date:
May 08, 2013
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
KOBAYASHI Tomoshige (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
OSUGI Masafumi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
TAKABE Shinichi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
International Classes:
F16D3/84; F16J3/04; F16J15/52
Foreign References:
JP2012031936A2012-02-16
JP2002235771A2002-08-23
JPS53116563U1978-09-16
JPS55145721U1980-10-20
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (Ehara Patent Office, 15-26 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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