Continuously variable transmission
First Claim
1. A drill press comprising:
- a motor of a drill press;
a continuously variable transmission coupled to the motor, the continuously variable transmission having a plurality of power adjusters, each power adjuster adapted to rotate about an axis centrally located within the adjuster;
a shifting mechanism for the continuously variable transmission, the shifting mechanism comprising;
at least one platform; and
a plurality of spindle supports engaged with the platform such that the spindle supports adjust the axis of rotation of the power adjusters in response to axial movement of the platform.
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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.
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Citations
19 Claims
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1. A drill press comprising:
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a motor of a drill press; a continuously variable transmission coupled to the motor, the continuously variable transmission having a plurality of power adjusters, each power adjuster adapted to rotate about an axis centrally located within the adjuster; a shifting mechanism for the continuously variable transmission, the shifting mechanism comprising;
at least one platform; anda plurality of spindle supports engaged with the platform such that the spindle supports adjust the axis of rotation of the power adjusters in response to axial movement of the platform. - View Dependent Claims (2, 3, 4, 5)
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6. A method of regulating torque transmission in a drill press, the method comprising:
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providing a torque input from a motor of the drill press; applying the torque input to a first rotatable member mounted on a shaft; contacting the first rotatable member to at least one traction roller having a spindle about which the traction roller rotates; contacting the traction roller to a second rotatable member mounted on the shaft; providing a spindle support attached to one end of the spindle; and providing a platform adapted to engage the spindle support such that the spindle support adjusts an axis of rotation of the traction roller in response to at least in part axially sliding the platform along the shaft. - View Dependent Claims (7, 8, 9)
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10. A drill press comprising:
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a motor of the drill press; a continuously variable transmission coupled to the motor, the continuously variable transmission comprising;
a rotatable driving member mounted on a shaft;a plurality of power adjusters in frictional contact with the driving member; a rotatable support member mounted on the shaft, capable of axial movement along the shaft, and in frictional contact with the power adjusters; and a first platform positioned on a first end of the support member and adapted to move axially along the shaft with the support member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification