Continuously variable transmission device

摘要

A continuously variable transmission device including a guiding cover rotating about a first axis, a guided cover rotating about a second axis, a planet gear including a first belt in contact with an inner surface of the guiding cover and a second belt in contact with an inner surface of the guided cover, contact areas between the belts and the inner surfaces of the covers being defined in a single first radial plane relative to the first axis, wherein the planet gear rotates about a third axis contained in the first radial plane, the angular orientation relative to the first axis defining the transmission ratio of the device, and wherein the planet gear pivots about a fourth axis perpendicular to the first radial plane and nonintersecting with the first axis, and pivots about a fifth axis parallel to the first radial plane and perpendicular to the third axis.

主权项

1. A continuously variable transmission device for transmitting a rotational movement, comprising:
a driving bell rotating around a first axis; a driven bell rotating around a second axis aligned with the first axis; a planet gear provided with a first belt in contact with an inner surface of the driving bell and a second belt in contact with an inner surface of the driven bell, contact zones between said belts and the inner surfaces of the bells being defined in a same first radial plane relative to the first axis, while the planet gear rotates around a third axis included in the first radial plane and an angular orientation of which relative to the first axis defines the transmission ratio of the device and while the planet gear pivots around a fourth axis perpendicular to the first radial plane and not intersecting the first axis;wherein the planet gear pivots around a fifth axis parallel to the first radial plane and perpendicular to the third axis.