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Vehicle steering telescopic shaft
   
Document Number
US Patent 7481130
Issued Date
January 27, 2009
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Inventors
Ozawa; Atsushi (Kanagawa-ken,JP)
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Abstract
A vehicle steering telescopic shaft having a male shaft and a female shaft so fitted to each other as not to be rotatable but to be slidable. First torque transmitting members are disposed between the male shaft and the female shaft, and roll when the male shaft and the female shaft make relative movements in axial directions. Elastic members are disposed adjacent in a radial direction to the first torque transmitting members and restrict them when rotated and apply a pre-load to the male shaft and the female shaft through the first torque transmitting members when not rotated. Second torque transmitting members are provided between the male shaft and the female shaft, and slide when the male shaft and the female shaft make the relative movements in the axial directions, and transmit a torque when rotated.
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Number of Claims:
18
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Owner
NSK Ltd. (Tokyo,JP)
Published
January 27, 2009
Application Number
10/489,449
Filed
October 1, 2002
US Classification
74/493   280/775
Int'l Classification
B62D   1/18   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Oct 01, 2001 [JP] 2001-304925 Aug 06, 2002 [JP] 2002-229022
USPTO Field of Search
74/493   74/492   464/167   280/775  
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