Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via radially directed...
Reexamination Certificate
2007-01-09
2007-01-09
Binda, Greg (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Having lubricating means
For coupling having torque transmitted via radially directed...
C464S132000
Reexamination Certificate
active
10729015
ABSTRACT:
Across shaft has four trunnions externally provided with roller bearings in a plurality of rows. Each of the trunnions is formed with a recess at its distal end face. A bottom region of the recess is formed in a spherical shape. An inner diameter of an opening region of the recess except the bottom region in a spherical shape is set to be gradually larger toward an opening end edge of the recess. A depth of the recess from the opening end edge to the deepest point is set to be 30 to 70% of the total length of the rollers in an axial direction. By providing this recess is a shape of a punch bowl, rigidity of each of the trunnions of the cross shaft can be reduced, while securing sufficient strength of the trunnion.
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SAE Universal Joint and Driveshaft Design Manual, AE-7, Society of Automotive Engineers, Warrendale, PA, p. 64, TJ1079.S62 1979.
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French Search Report dated Jun. 23, 2005 with a partial English translation.
Komeyama Nobuo
Yamamoto Kenji
Binda Greg
Koyo Seiko Co. Ltd.
McGinn IP Law Group PLLC
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