Rotary shafts – gudgeons – housings – and flexible couplings for ro – Shafting
Reexamination Certificate
2008-05-20
2008-05-20
Binda, Greg (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Shafting
C403S359600, C464S906000
Reexamination Certificate
active
10987300
ABSTRACT:
A power transmission shaft such as a spline shaft and a serration shaft is provided which has improved static strength and fatigue strength. In a power transmission shaft, a diameter expansion surface is formed in a valley section of a tooth on the opposite side of a shaft end. First blunt sections in the shape of a curved surface are formed in corners between the diameter expansion surface and a tooth surface adjacent to the diameter expansion surface, in order to blunt edges.
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Nanaware et al. Failures of rear axle shafts of 575 DI tractors, [Online], [retrieved on Jan. 22, 2007]. retrieved from the internet <URL: http://www.sciencedirect.com>.
P.P. Benham et al., Mechanics of Solids and Structures, Chapter 17 “Stress Concentration”, Pitman Books Limited, Pitman Publishing Inc., Marshfield, Massachusetts, 1973, pp. 392-407.
Nakagawa Tohru
Sakurai Katsuhiro
Arent & Fox LLP
Binda Greg
NTN Corporation
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