US 6,440,035 B2Granted

Continuously variable transmission for motor vehicles

AssigneeHonda Giken Kogyo Kabushiki Kaisha

InventorsYoshiaki Tsukada, Kazuhiko Nakamura, Toshiya Nagatsuyu

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Abstract

To provide a continuously variable transmission for motor vehicles which transmits power with a speed change from a driving member to a driven member. In the continuously variable transmission, power transmission is effected by moving a carrier which supports a shifting rotating member in frictional contact with the driving member and the driven member. No other special mechanism other than the continuously variable transmission is needed to push to move the motor vehicle with a small force. At least either one of the driving member and the driven member is driven by a power disconnecting means to move away from the other member along the axis of a transmission shaft, thereby releasing at least one of the driving member and the driven member from frictional contact with the first and second friction transfer surfaces.

Claims14

Dependent claims

A continuously variable transmission for motor vehicles, comprising:

a transmission shaft;
a driving member rotated together with said transmission shaft;
a driven member rotatably supported on said transmission shaft;
a carrier movable along the axis of said transmission shaft;
a support shaft including an axis along a conical generator having its centerline on the axis of said transmission shaft and being supported on said carrier;
and
a shifting rotating member having conical first and second friction transfer surfaces in frictional contact, respectively, with said driving member and driven member, and rotatably and axially slidably supported on said support shaft, wherein said continuously variable transmission includes a power disconnecting means for releasing at least one of said driving member and said driven member from frictional contact with the first and second friction transfer surfaces by driving at least one of said driving member and said driven member wherein said rotating members will move away from each other along the axis of said transmission shaft.

4 more elements

A continuously variable transmission for motor vehicles, comprising:

a transmission shaft;
a driving member mounted on said transmission shaft for rotation together with said transmission shaft;
a driven member rotatably supported on said transmission shaft;
a carrier selectively movable along the axis of said transmission shaft;
a support shaft including an axis along a conical generator having its centerline on the axis of said transmission shaft and being supported on said carrier;
and
a shifting rotating member having conical first and second friction transfer surfaces in frictional contact, respectively, with said driving member and driven member, and rotatably and axially slidably supported on said support shaft;
a power disconnecting member for releasing at least one of said driving member and said driven member from frictional contact with the first and second friction transfer surfaces by driving at least one of said driving member and said driven member wherein said rotating members are movable away from each other along the axis of said transmission shaft.

5 more elements

Dependencies are inferred from the claim text.