Three-wheeled rear-steering scooter
AssigneeSbyke USA LLC
InventorBradley E. Wernli
Life of this patent
Estimating the term…
Abstract
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.
Claims15
A method of riding a three-wheeled scooter in an upright standing position, the method comprising the steps of:
- placing a left foot or a right foot on a side of a non pivotable front wheel and on a support, the non pivotable front wheel disposed at a front side of the support;
- placing the other foot on a ground;
- grasping a handle bar with a hand;
- pushing off with the other foot placed on the ground in a forward direction;
- after a sufficient forward velocity is reached, placing the left foot and the right foot on the support so that the left foot is disposed on a left side of a non pivotable front wheel and a right foot is disposed on a right side of the non pivotable front wheel;
- rolling the support to a left side about a longitudinal axis of the support while a fork of the non-pivotable front wheel remains fixed with respect to the support to yaw rear wheels disposed under the support to turn left;
- rolling the support to a right side about the longitudinal axis of the support while a fork of the non-pivotable front wheel remains fixed with respect to the support to yaw rear wheels disposed under the support to turn right.
A three wheeled scooter for a rider standing in an upright position, the scooter comprising:
- a support for supporting the rider and rotatable about a longitudinal axis;
- a front wheel which has a rotational axis defined by rotation of the front wheel on the ground, the rotational axis of the front wheel being fixed with respect to the longitudinal axis of the support as the support rotates about the longitudinal axis, the rotational axis of the front wheel being disposed at an elevation higher than the support;
- a handle bar disposed over the front wheel;
- a pair of rear wheels disposed at an aft portion of the support, the pair of rear wheels being yawable relative to the longitudinal axis between a neutral position and a yawed position, the rear wheels defining a rear wheel rotational axis which is disposed at an elevation lower than the support;
- wherein steering of the scooter is effectuated by angular yawing of the rear wheels relative to the longitudinal axis.
Dependencies are inferred from the claim text.