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US 11,543,007 B2Granted
Skew limiter for a Toric-drive CVT
AssigneeTransmission Cvtcorp Inc.
InventorsAlexandre Blouin, Maxime Desjarlais
Life of this patent
Estimating the term…
Abstract
In part, skew limiter for a toric-drive CVT embodiments are disclosed. A skew limiter may include a shaped piece that limits the skew angle to a known angle notwithstanding the tilt angle of the rollers.
Claims21
A toric-drive continually variable transmission comprising:
- a longitudinal shaft lying in a longitudinal axis and supporting an input disk thereon and an output disk via a non-rotating sleeve;
- the input and output disks having facing toroidal surfaces;
- at least two rollers interconnecting the toroidal surfaces of the input and output disks;
- each of the at least two rollers having an axle provided with a distal end;
- each at least two rollers being so mounted to the non-rotating sleeve as to be movable along a skew axis and a tilt axis;
- a control ring so mounted to the transmission as to be pivotable about the longitudinal axis, the control ring including apertures each receiving the distal end of the roller axle of one of the at least two rollers;
- pivotment of the control ring about the longitudinal axis causing a movement of the at least two rollers in the skew axis;
- and
- a skew limiter provided between the roller axle of one of the at least two rollers and the control ring;
- the skew limiter including first and second shaped projections so configured as to abut the control ring when a predetermined maximal skew angle of the roller is reached;
- the skew limiter thereby limiting the skew angle to a known maximal angle notwithstanding the tilt angle of the at least two rollers.
8 more elements
A toric-drive continually variable transmission comprising:
- a longitudinal shaft lying in a longitudinal axis and supporting an input disk thereon and an output disk via a non-rotating sleeve;
- the input and output disks having facing toroidal surfaces;
- at least two rollers interconnecting the toroidal surfaces of the input and output disks;
- each of the at least two rollers having an axle provided with a distal end;
- each at least two rollers being so mounted to the non-rotating sleeve as to be pivotable about a skew axis and a tilt axis;
- wherein, for each roller, the tilt axis is parallel to the planes of the input and output disks and the skew axis is oriented substantially parallel to a diametral axis of the roller;
- a control ring so mounted to the transmission as to be pivotable about the longitudinal axis, the control ring including apertures each receiving the distal end of the roller axle of one of the at least two rollers;
- pivotment of the control ring about the longitudinal axis causing a movement of the at least two rollers about a skew axis;
- and
- a skew limiter provided between the roller axle of one of the at least two rollers and the control ring;
- the skew limiter including first and second shaped projections so configured as to abut the control ring when a predetermined maximal skew angle of the roller is reached;
- the skew limiter thereby limiting the skew angle to a known maximal angle notwithstanding the tilt angle of the at least two rollers.
9 more elements
Dependencies are inferred from the claim text.