CONTINUOUSLY VARIABLE TRANSMISSION
First Claim
1. A continuously variable transmission, comprising:
- first and second rotating elements that have a common first rotation axis and are arranged opposite to each other so as to be rotatable relative to each other;
a rolling member that is rotatably supported by a support shaft having a second rotation axis separate from the first rotation axis, and is sandwiched between the first and second rotating elements such that torque transmission is possible between the first and second rotating elements;
a transmission controlling section that changes a rotation ratio between the first and second rotating elements by tilting and rolling the rolling member;
a pushing section that pushes the support shaft, when moving axial direction, in an opposite direction to a direction of tilt of the support shaft in accordance with spin moment occurring at the rolling member; and
a thrust force transmitting section that transmits, to the pushing section, thrust force in the axial direction applied from the rolling member based on spin moment occurring at the pushing section.
1 Assignment
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Accused Products
Abstract
A continuously variable transmission includes: first and second rotating elements that has a common first rotation axis; a planetary ball that is rotatably supported by a support shaft having a second rotation axis separate from the first rotation axis, and is sandwiched between the first rotation member and the second rotating member such that torque transmission is possible between them; grooves, etc., that permit change in a rotation ratio between the first and second rotating members by tilting and rolling the planetary ball; an inclined surface that pushes the support shaft in a direction opposite to the direction of tilt of the support shaft in accordance with spin moment occurring at the planetary ball when moving in an axial direction; and a thrust force transmitting section, such as a movable shaft, etc., by which radial thrust force applied from the planetary ball is transmitted to the inclined surface based on spin moment occurring at the planetary ball.
145 Citations
17 Claims
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1. A continuously variable transmission, comprising:
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first and second rotating elements that have a common first rotation axis and are arranged opposite to each other so as to be rotatable relative to each other; a rolling member that is rotatably supported by a support shaft having a second rotation axis separate from the first rotation axis, and is sandwiched between the first and second rotating elements such that torque transmission is possible between the first and second rotating elements; a transmission controlling section that changes a rotation ratio between the first and second rotating elements by tilting and rolling the rolling member; a pushing section that pushes the support shaft, when moving axial direction, in an opposite direction to a direction of tilt of the support shaft in accordance with spin moment occurring at the rolling member; and a thrust force transmitting section that transmits, to the pushing section, thrust force in the axial direction applied from the rolling member based on spin moment occurring at the pushing section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification