Power roller unit for toroidal-type continuously variable...

Details Power roller unit for toroidal-type continuously variable... Power roller unit for toroidal-type continuously variable...

2006-07-18

2006-07-18

Fenstermacher, David (Department: 3682)

Friction gear transmission systems or components

Friction gear includes idler engaging facing concave surfaces

Toroidal

C476S042000, C476S067000

Reexamination Certificate

active

07077781

ABSTRACT:
A power roller unit for a toroidal-type continuously variable transmission, has: a trunnion including a support plate portion, a pair of bent wall portions, two pivot shafts, and a connecting member; a displacement shaft; a power roller; a thrust ball bearing including an outer ring, a ball, and a retainer; a thrust bearing, wherein the thrust bearing is held by a hold portion disposed in the support plate portion, and wherein, where the distance between the small end face of the power roller and the connecting member is expressed as a, the distance between the outer ring and the opposed surface of the hold portion opposed to the outer ring is expressed as b, and the thickness of the thrust bearing is expressed as c, the sum of a and b is set smaller than c.

REFERENCES:
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patent: 2003/0190994 (2003-10-01), Ishikawa et al.
patent: 2004/0087412 (2004-05-01), Mori et al.
patent: 6-41004 (Y2) (1994-10-01), None
patent: 10-30700 (A) (1998-02-01), None
patent: 2001-304366 (A) (2001-10-01), None

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