Continuously variable transmission
First Claim
1. A shaft for supporting components of, and for facilitating the shifting of a speed ratio of, a continuously variable transmission (CVT), the shaft comprising:
- a first end and a second end, wherein each of the first and second ends has threads;
a central bore;
a slot placed between the first and second ends;
a first surface adapted to receive, and prevent rotational movement of, a first stationary support of the CVT;
a second surface adapted to receive, and prevent rotational movement of, a second stationary support of the CVT; and
wherein the slot is located in a portion of the shaft that is between the first and second surfaces.
3 Assignments
0 Petitions
Accused Products
Abstract
A continuously variable transmission is disclosed for use in rotationally or linearly powered machines and vehicles. The single axle transmission provides a simple manual shifting method for the user. An additional embodiment is disclosed which shifts automatically dependent upon the rotational speed of the wheel. Further, the practical commercialization of traction roller transmissions requires improvements in the reliability, ease of shifting, function and simplicity of the transmission. The disclosed transmission may be used in vehicles such as automobiles, motorcycles, and bicycles. The transmission may, for example, be driven by a power transfer mechanism such as a sprocket, gear, pulley or lever, optionally driving a one way clutch attached at one end of the main shaft.
316 Citations
20 Claims
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1. A shaft for supporting components of, and for facilitating the shifting of a speed ratio of, a continuously variable transmission (CVT), the shaft comprising:
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a first end and a second end, wherein each of the first and second ends has threads; a central bore; a slot placed between the first and second ends; a first surface adapted to receive, and prevent rotational movement of, a first stationary support of the CVT; a second surface adapted to receive, and prevent rotational movement of, a second stationary support of the CVT; and wherein the slot is located in a portion of the shaft that is between the first and second surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A shaft comprising:
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a generally cylindrical and elongated body; a bore, through at least part of the elongated body, along a longitudinal axis of the elongated body; a slot in the elongated body, the slot providing a passage from the bore to an external surface of the elongated body; a first threaded end; a second threaded end located at a distal end relative to the first threaded end; a first surface adapted to prevent relative rotation, with respect to the shaft, of a first component to be mounted on the shaft; a second surface adapted to prevent relative rotation, with respect to the shaft, of a second component to be mounted on the shaft; and wherein the slot is located in a portion of the shaft that is between the first and second surfaces. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A continuously variable transmission (CVT) comprising:
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a shift rod; a sleeve; a first support member; a second support member; and a shaft, the shaft comprising; a central bore; a slot placed between a first and a second end of the shaft; a first surface adapted to receive and prevent rotational movement of the first support member; and a second surface adapted to receive and prevent rotational movement of the second support member; wherein the shift rod is placed in the central bore; and wherein the sleeve is mounted coaxially about the shaft. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification