A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

The purpose of the device storing elastic potential energy in a vehicle is making the use of energy to move it more efficient as the device can store excess energy and provide energy when needed. This will make energy storage in a spring for later use possible when riding at high speed and then braking, not to waste energy in friction brakes, in contrast to what regularly happens; in this way, the use of energy will be more efficient. When the cyclist is tired, is riding up a steep slope, or simply needs energy, he will be able to release energy and thus accelerate to improve energy performance. Likewise, the bicycle user will be able to ride farther, ascend to higher peaks, and use less energy for a journey. This will provide people the opportunity to shift to the use of this vehicle instead of a motor vehicle.

The purpose of the device storing elastic potential energy in a vehicle is making the use of energy to move it more efficient as the device can store excess energy and provide energy when needed. This will make energy storage in a spring for later use possible when riding at high speed and then braking, not to waste energy in friction brakes, in contrast to what regularly happens; in this way, the use of energy will be more efficient. When the cyclist is tired, is riding up a steep slope, or simply needs energy, he will be able to release energy and thus accelerate to improve energy performance. Likewise, the bicycle user will be able to ride farther, ascend to higher peaks, and use less energy for a journey. This will provide people the opportunity to shift to the use of this vehicle instead of a motor vehicle.

A negative pressure air suction type fluid-driven power machine comprises a fluid pressure accumulation bin, a necking port, a flow inlet, a flow guiding cover, a fluid-inlet flow guiding cover, turbine driving blades, a turbine housing, a turbine shaft, a turbine bracket, nozzles surrounding peripheries of the turbine driving blades, a turbine fluid outlet, a fluid negative-pressure flow guiding cover, a fluid negative-pressure outlet, an external driving fluid inlet, an external driving fluid flow guiding cover, and nozzles. The negative pressure air suction type fluid-driven power machine is formed using a gravity acceleration fluid generated by a fluid flowing to a direction opposite to operation of an object as a main driving power source and using a fluid air suction phenomenon as an auxiliary power source, and can replace some effects of steam engines, internal combustion engines, motors and the like.

A vehicle with a front wheel and a front wheel of a vehicle is provided. The front wheel is drivable by a first drive arrangement, and a rear wheel of the vehicle is drivable by a second drive arrangement. The first drive arrangement may be integrated into the front wheel, and includes an electric motor for selectively rotatably driving the front wheel, a reduction gear between the electric motor and the front wheel, and an actuable coupling for selectively coupling or decoupling the electric motor to the reduction gear.

A bicycle control apparatus is provided for controlling a bicycle assist device. The bicycle control apparatus includes a controller that is configured to control an assist motor for assisting a manual drive force of a transmission with a plurality of sprockets. The controller is configured to control an output of the assist motor based on a rotational position of a sprocket of the plurality of sprockets when the transmission performs a shifting operation to switch a chain between two of the plurality of sprockets.

A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

A bicycle detection device is basically provided with a single sensor that is configured to output a first detection signal of a first state in response to a movement of a first operating member. The sensor is configured to output a second detection signal of a second state, which is different from the first state, in response to a movement of a second operating member.