US 8,534,146 B2 · Geared, continuously variable speed transmission

Abstract

A continuously variable speed transmission includes a first guideway, a second guideway, wherein the first guideway and the second guideway remain stationary during operation at a particular speed ratio. The transmission includes a first member moveably connected to the first guideway and the second guideway, the first member includes gear teeth and a second member having gear teeth positioned at an adjustable angle relative to the first member. The speed ratio of the transmission is determined based on angle of the second member relative to the first member. In another variation, the first member may be either an input member or a control member, and the second member may be either an input member or a control member. An additional member connected to the center of the gear between the first and second members would then serve as the output member.

Claims24

Dependent claims

A continuously variable speed transmission, comprising:

a first guideway;
a second guideway;
wherein the first guideway and the second guideway remain stationary during operation at a particular speed ratio;
a first member moveably connected to the first guideway and the second guideway, the first member further comprising gear teeth;
a second member having gear teeth positioned at an adjustable angle relative to the first member;
a first gear engagingly connected to the gear teeth of the first member and the gear teeth of the second member;
a third member operably connected to the first gear and having gear teeth;
a second gear engagingly connected to the gear teeth of the third member;
and
wherein the speed ratio of the transmission is determined based on angle of the second member relative to the first member.

7 more elements

Dependencies are inferred from the claim text.

Geared, continuously variable speed transmission

Life of this patent

Geared, continuously variable speed transmission

Life of this patent

Abstract

Claims24