Friction gear transmission systems or components – Friction gear includes idler engaging facing concave surfaces – Toroidal
Reexamination Certificate
2005-06-21
2005-06-21
Fenstermacher, David (Department: 3682)
Friction gear transmission systems or components
Friction gear includes idler engaging facing concave surfaces
Toroidal
C476S048000
Reexamination Certificate
active
06908409
ABSTRACT:
The invention relates to a stepless friction drive (1) in which friction wheels (2) are mounted. Said friction drive is provided with a system that allows a compensatory displacement of the corresponding friction wheel (2) when the input and output wheels are elastically deformed. Said system is mounted between the lower end of every support (1) and the hydraulic piston (6). The compensation system comprises an upper bearing shell (3), a lower bearing shell (5) and balls (4) that are maintained in a defined arrangement by means of a cage (9).
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Matheis Axel
Sich Bernard
Davis & Bujold P.L.L.C.
Fenstermacher David
ZF Friedrichshafen AG
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