Planetary gear type transmission

Details Planetary gear type transmission Planetary gear type transmission

2007-03-09

2009-10-27

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Carrier braked

Reexamination Certificate

active

07608009

ABSTRACT:
A planetary gear type transmission includes a planetary gear mechanism including a sun gear, a ring gear, and a planetary carrier which all have the same axis, an output shaft having the same axis as the planetary gear mechanism, a sleeve supported movable in an axial direction by the output shaft, an inner piece connected to the sleeve while the sleeve is approaching the planetary gear mechanism and including a first inner spline, and an outer piece connected to the sleeve while the sleeve is separating from the planetary gear mechanism and including a second outer spline. The sleeve includes a first outer spline fitted to the first inner spline and a second inner spline fitted to the second outer spline. A distance between the second inner spline and the planetary gear mechanism is smaller than a distance between the first outer spline and the planetary gear mechanism.

REFERENCES:
patent: 1581695 (1926-04-01), Starr
patent: 1634168 (1927-06-01), Ahlm
patent: 4873892 (1989-10-01), Ohkubo
patent: 5842947 (1998-12-01), Weilant
patent: 7534188 (2009-05-01), Pritchard et al.
patent: 2002-321541 (2002-11-01), None

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