Electrical power assist for wheeled child carrier

An electric power-assisted wheeled child carrier comprising:

• a frame;
• a left rear wheel and a right rear wheel connected to the frame;
• and
• an electric drive mechanism for electrically powering rotation of the left rear wheel and the right rear wheel, the electric drive mechanism comprising:
• a motor,
• a left output shaft and a right output shaft each coupled to the motor and configured to be rotated by the motor,
• a left rear wheel shaft coupled to the left rear wheel, and a right rear wheel shaft coupled to the right rear wheel, and
• a left clutch joining the left output shaft and the left rear wheel shaft, and a right clutch joining the right output shaft and the right rear wheel shaft, wherein the left clutch and the right clutch are each an overrunning clutch.

An electric power-assisted stroller comprising:

• a frame defining a seating area;
• a handle joined to an upper portion of the frame;
• a left rear wheel and a right rear wheel, each connected to the frame;
• and
• an electric drive mechanism for electrically powering rotation of the left rear wheel and the right rear wheel, the electric drive mechanism comprising:
• a motor,
• a left output shaft and a right output shaft each coupled to the motor and configured to be rotated by the motor,
• a left rear wheel shaft coupled to the left rear wheel, and a right rear wheel shaft coupled to the right rear wheel, and
• a left clutch joining the left output shaft and the left rear wheel shaft, and a right clutch joining the right output shaft and the right rear wheel shaft, the left clutch and the right clutch each configured to move axially,
• wherein the left clutch is biased toward the left output shaft when the left rear wheel shaft is rotating more quickly than the left output shaft and wherein the right clutch is biased toward the right output shaft when the right rear wheel shaft is rotating more quickly than the right output shaft.