Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
First Claim
1. A transmission comprising:
- a plurality of power roller assemblies arranged angularly about a longitudinal axis of the transmission, the power roller assemblies configured to tilt during operation;
a first traction ring in contact with the power rollers;
a second traction ring in contact with the power rollers; and
an idler in contact with the power rollers, the idler adapted to translate with respect to the longitudinal axis;
a shift rod sleeve operably coupled to the idler, the shift rod sleeve configured to rotate with the idler;
a shift rod driver arranged along the longitudinal axis, the shift rod driver operably coupled to the shift rod sleeve;
an output feedback rod coupled to the shift rod driver; and
an output engagement mechanism operably coupled to the output feedback rod,wherein the output engagement mechanism is configured to rotate with the second traction ring.
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Abstract
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously and infinitely variable transmissions (IVT). In one embodiment, a variator is adapted to receive a control system that cooperates with a shift nut to actuate a ratio change in an IVT. In another embodiment, a neutral lock-out mechanism is adapted to cooperate with the variator to, among other things, disengage an output shaft from a variator. Various inventive mechanical couplings, such as an output engagement mechanism, are provided to facilitate a change in the ratio of an IVT for maintaining a powered zero operating condition. In one embodiment, the output engagement mechanism selectively couples an output member of the variator to a ratio adjuster of the variator. Embodiments of a ratio adjuster cooperate with other components of the IVT to support operation and/or functionality of the IVT. Among other things, user control interfaces for an IVT are disclosed.
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Citations
7 Claims
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1. A transmission comprising:
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a plurality of power roller assemblies arranged angularly about a longitudinal axis of the transmission, the power roller assemblies configured to tilt during operation; a first traction ring in contact with the power rollers; a second traction ring in contact with the power rollers; and an idler in contact with the power rollers, the idler adapted to translate with respect to the longitudinal axis; a shift rod sleeve operably coupled to the idler, the shift rod sleeve configured to rotate with the idler; a shift rod driver arranged along the longitudinal axis, the shift rod driver operably coupled to the shift rod sleeve; an output feedback rod coupled to the shift rod driver; and an output engagement mechanism operably coupled to the output feedback rod, wherein the output engagement mechanism is configured to rotate with the second traction ring. - View Dependent Claims (2, 3, 4)
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5. A control system for an infinitely variable transmission (IVT), the control system comprising:
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a shift rod driver; an output feedback rod coupled to the shift rod driver; a control interface housing operably coupled to the shift rod driver, the control interface housing configured to translate axially; an output member configured to be selectively coupled to the output feedback rod; and an output engagement mechanism having a plurality of pins, the output engagement mechanism coupled to the output member, the output engagement mechanism selectively coupled to the output feedback rod. - View Dependent Claims (6, 7)
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Specification