Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Tripod coupling
Reexamination Certificate
2005-09-26
2009-06-09
Dunwoody, Aaron M (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling accommodates drive between members having...
Tripod coupling
C464S905000
Reexamination Certificate
active
07544131
ABSTRACT:
In a tripod-type constant velocity joint having an inner joint member, an outer joint member, and three roller units, the radius R1, outer width W1, and inner width W2of the outer periphery cylindrical surface of each roller unit, and the radius R3of the center hole of each roller unit satisfy the inequalities: 0.5Rtc(1/cos 0.3⊖−1)+(R1−R3)μ<W1and 1.5Rtc(1−cos 0.3⊖)+(R1−R3)μ<W2, where Rtc: the radius of a circle passing through the respective centers of tripod spherical surfaces of the inner joint member, ⊖: the maximum joint angle between the outer joint member and the inner joint member, and μ: coefficient of friction between each tripod spherical surface and the wall surface of the center hole of the corresponding roller unit.
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U.S. Appl. No. 11/234,199, filed Sep. 26, 2005, Ando et al.
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Ando Atsushi
Ichikawa Kazuyuki
Kashiwagi Isashi
Wakamatsu Minoru
Dunwoody Aaron M
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Yoyoda Koki Kabuhsiki Kaisha
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