ROLLING TRACTION PLANETARY DRIVE - FALLBROOK TECHNOLOGIES INC

Title:

ROLLING TRACTION PLANETARY DRIVE

Document Type and Number:

WIPO Patent Application WO2006014617

Kind Code:

A3

Abstract:

A traction-drive system that in one embodiment comprises an idler (110) rotatable about a longitudinal axis, a plurality of rotatable and generally disc-shaped planet rollers (300) each having an inner contact surface (310), a case contact surface (315) and an idler contact surface (320), the inner contact surface being of a first diameter, the case contact surface being a second diameter and the idler contact surface being of a third diameter, the planet rollers distributed about the idler and each planet roller contacting the idler at its respective idler contact surface. The traction drive system of this embodiment also comprises an inner ring (400) rotatable about the longitudinal axis adapted to contact the case contact surface of each of the planet rollers. In some embodiments, the inner contact surface of each roller only contacts the inner ring, the case contact surface of each roller only contacts the case ring and the idler contact surface of each roller only contacts the idler.

Inventors:

MILLER DONALD C (US)
SMITHSON ROBERT A (US)

Application Number:

PCT/US2005/025539

Publication Date:

July 27, 2006

Filing Date:

July 19, 2005

Export Citation:

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Assignee:

FALLBROOK TECHNOLOGIES INC (US)
MILLER DONALD C (US)
SMITHSON ROBERT A (US)

International Classes:

F16H15/48; F16H13/14; F16H57/08

Foreign References:

US5037361A	1991-08-06
US6406399B1	2002-06-18
US6095940A	2000-08-01
JPH1163130A	1999-03-05

Other References: