US 7,882,917 B2Granted

Motorcycle

AssigneeYamaha Hatsudoki Kabushiki Kaisha

InventorsToshinori Inomori, Yousuke Ishida

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Abstract

A motorcycle is provided with a vehicle body, front and rear wheels, an engine and a power transmission mechanism for connecting the engine to the rear wheel. A centrifugal clutch and a transmission having a plurality of gears are arranged in the power transmission mechanism. A handle is provided on the vehicle body. An accelerator grip is provided on the right side of the handle and a clutch lever is provided on the left side. A shift pedal for changing the transmission gear ratio of the transmission and a side stand are provided on the left side of the vehicle body. A rear brake pedal for braking the rear wheel is provided on the right side of the vehicle body. The motorcycle is also provided with a rotation suppression mechanism for suppressing the rotation of the rear wheel at least when the engine is stopped.

Claims23

Dependent claims

A motorcycle comprising:

a vehicle body;
a rear wheel provided on a rear side of the vehicle body;
a drive source;
a power transmission mechanism for connecting the drive source to the rear wheel;
a centrifugal clutch arranged in the power transmission mechanism;
a transmission having a plurality of gears and arranged in the power transmission mechanism;
a handle provided on the vehicle body;
an accelerator grip provided on a right side of the handle;
a clutch lever provided on a left side of the handle and operatively connected to the centrifugal clutch for disengaging and engaging the centrifugal clutch;
a shift pedal provided on a left side of the vehicle body and operatively connected to the transmission for changing a transmission gear ratio;
a rear brake pedal provided on a right side of the vehicle body and operatively connected to the rear wheel for braking the rear wheel;
a side stand provided on the vehicle body;
and
a rotation suppression mechanism configured to suppress the rotation of the rear wheel at least when the drive source is stopped, and after the motorcycle has been brought to a complete stop.

11 more elements

A motorcycle, comprising:

a drive source;
a power transmission mechanism for operatively connecting the drive source to a rear wheel;
a centrifugal clutch operatively arranged in the power transmission mechanism to automatically engage when the rotational speed of an input member is greater than or equal to an engagement rotational speed and automatically disengage when the rotational speed is less than the engagement speed;
a transmission having a plurality of gears operatively arranged in the power transmission mechanism to provide a plurality of predefined gear ratios;
a clutch actuation member operatively connected to the centrifugal clutch for manually disengaging and engaging the centrifugal clutch when the rotational speed of the input member is greater than or equal to the first rotational speed;
a shift pedal provided on a first side of a vehicle body, the shift pedal operatively connected to the transmission for changing the gear ratio;
a side stand provided on a side of the vehicle body;
and
a rotation suppression mechanism configured to suppress rotation of the rear wheel at least when the drive source is stopped, wherein the rotation suppression mechanism does not include a rear brake foot pedal, wherein the rotation suppression mechanism includes a pressing mechanism for pressing the centrifugal clutch into a connected state when the rotational speed of the centrifugal clutch is insufficient to cause the centrifugal clutch to automatically engage.

6 more elements

Dependencies are inferred from the claim text.