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US 2016/0280319 A1Published application
Pole Propelled Velocipede
OwnerRobert B. Doddsinventor
Life of this patent
Estimating the term…
Abstract
A two wheeled vehicle is propelled by the feet of a rider and hand-grasped poles when pushing against the ground. A forward wheel on a forward member and a rear wheel on a rearward member align along a longitudinal axis. The forward member rotates about a vertical steering axis. A saddle supports the rider. A torso brace allows the rider to balance and steer the device.
Claims20
A two-wheeled vehicle comprising:
- a forward structural member supported by a front wheel rotatably mounted thereto, the forward structural member pivotally connected to a rearward structural member supported by a rear wheel rotatably mounted thereto, the front wheel and the rear wheel in tandem, the front wheel pivotable about a substantially vertical steering axis, the steering axis and a point of contact of the rear wheel with the ground defining a plane, a point of contact of the front wheel with the ground located rearward of a point at which the steering axis intersects the ground, a point of contact of the front wheel with the ground and a point of contact of the rear wheel with the ground defining a longitudinal axis;
- a saddle mountable to the rearward structural member positioned forward of the rear wheel axle and aligned in the plane;
- and
- a torso brace mountable to the forward structural member or rearward structural member configured to be engaged by contact with a part of a rider's body other than a limb, whereby the movement of the rider's body against the brace can cause the front wheel to pivot about the steering axis;
- wherein the vehicle is configured to be propelled by the feet of a rider pushing against the ground on opposite sides of the longitudinal axis.
2 more elements
A two-wheeled vehicle comprising:
- a forward structural member supported by a front wheel rotatably mounted thereto, the forward structural member pivotally connected to a rearward structural member supported by a rear wheel rotatably mounted thereto, the front wheel and the rear wheel in tandem, the front wheel pivotable about a substantially vertical steering axis, the steering axis and a point of contact of the rear wheel with the ground defining a plane, a point of contact of the front wheel with the ground located rearward of a point at which the steering axis intersects the ground;
- a saddle mountable to the rearward structural member positioned forward of the rear wheel axle and aligned in the plane;
- a torso brace attached to the forward structural member or rearward structural member configured to be engaged by the torso of a rider;
- and
- at least one pole;
- wherein the vehicle is configured to be propelled by the feet of a rider and with poles pushing against the ground.
3 more elements
A two-wheeled vehicle comprising:
- a forward structural member supported by a front wheel rotatably mounted thereto, the forward structural member pivotally connected to a rearward structural member supported by a rear wheel rotatably mounted thereto, the front wheel and the rear wheel in tandem, the front wheel pivotable about a substantially vertical steering axis, the steering axis and a point of contact of the rear wheel with the ground defining a plane, a point of contact of the front wheel with the ground located rearward of a point at which the steering axis intersects the ground;
- and
- a means attached to said rearward structural member configured to support mass of a rider positioned with its center-of-mass located in said plane forward of said point of contact of the rear wheel with the ground and rearward of said steering axis, said means further configured to resist torsion applied about said center-of-mass in a plane substantially parallel to the surface of the ground, said torsion produced from torque developed by the feet of said rider pushing against the ground, whereby said torque tends to twist said rearward member with respect to the surface of the ground;
- wherein said forward structural member responds to said torque by tending to pivot the front wheel about a point of contact with the ground in a direction corresponding to that of said torque.
1 more element
Dependencies are inferred from the claim text.