Structural fenders for laterally-spaced wheels on a riding device

A structural fender for a riding device comprising:

• a truck with a hanger comprising a horizontal hanger member with a first end, a second end, and a transverse through bore disposed along an axle axis;
• one wheel axle;
• a left side structural fender securely connected with the first end of the horizontal hanger member, and the left side structural fender covers a left side wheel with a first axle bore disposed along the axle axis,
• a right side structural fender securely connected with the second end of the horizontal hanger member, and a right side structural fender covers a right side wheel with a second axle bore along the axle axis,
• the left side structural fender comprising an inner side wall connected with an arcuate surface connected with an outer side wall, wherein the arcuate surface corresponds to an outside curved surface of the left side wheel and leaves exposed a bottom portion of the left wheel allowing the left wheel to touch a riding surface;
• the right side structural fender comprising an inner side wall connected with an arcuate surface connected with an outer side wall, wherein the arcuate surface corresponds to an outside curved surface of the right side wheel and leaves exposed a bottom portion of the right wheel allowing the right wheel to touch a riding surface;
• the axle is disposed along the axle axis through the outer transverse bore in the outer side wall of the left structural fender, through the first wheel axle bore, through the inner transverse bore in the inner side wall of the left structural fender, through the transverse bore in the horizontal hanger member, through the inner transverse bore in the inner side wall of the right structural fender, through the second wheel axle bore, and through the outer transverse bore in the outer side wall of the right structural fender;
• wherein the inner transverse bores and the outer transverse bores are concentric and are sized to receive the wheel axle, and wherein the wheel axle is secured to the structural fender so that each wheel rotates within each structural fender;
• wherein the wheel bearing axle is supported by the inner side wall and outer side wall on each side of each wheel;
• wherein each structural fender is comprised of a material of sufficient strength to support the wheel axle;
• and
• wherein the structural fender and hanger comprise a single rigid body.

A truck for a riding device comprising,

• three rigid bodies comprising;
• a baseplate comprising an outer top surface with a top opening that opens to a revolute floating kingpin bearing cavity that connects with a free float chamber, an outer lower surface with a lower recess to receive a compliant body, a lower opening connected with a pivot arm spherical bearing cavity to receive a pivot arm, a right side surface, a left side surface, wherein the outer top surface, the outer lower surface, the left side surface, and the right side surface of the baseplate securely connect with and insert into a tubular frame forming a first rigid body;
• a hanger comprising a central horizontal member with an upper surface, a lower surface, a first end with a first axle bore, a second end with a second axle bore, and the pivot arm with a male spherical bearing surface on a distal end, wherein the upper surface comprises an upper recess and a central bore disposed within the upper recess, and wherein the lower surface comprises a lower opening connected with a hanger spherical bearing cavity, and wherein the upper recess, central bore, hanger spherical bearing cavity, and the lower opening are concentric, wherein a first wheel is connected with the first end and a second wheel is connected with the second end, and wherein the hanger comprises a second rigid body;
• a revolute floating kingpin comprising an upper arm with a male bearing surface and an end, and a lower arm with an outside surface and an end with threads that passes through a hemispheric bearing and is secured by a nut, wherein the upper arm and the lower arm are connected and are perpendicular to each other comprising a third rigid body;
• the compliant body comprising an elastomeric component with a top, a bottom, a circular side surface, and a central bore that is sized to receive and moveably secure the lower arm outside surface of the revolute floating king pin, and providing a primary motion of suspension;
• an upper spherical joint moveably connecting the hanger pivot arm male bearing surface with the baseplate pivot arm spherical bearing cavity;
• a lower spherical joint moveably connecting the hanger with the lower arm of the revolute floating kingpin;
• a revolute joint moveably connecting the upper arm of the revolute floating kingpin with the baseplate and forming an axis of rotation, wherein a free float chamber and lower recess define the range of rotation of the revolute floating kingpin relative to the baseplate;
• and
• a hanger pivot axis between a centroid point of the upper spherical joint and a centroid point of the lower spherical joint.