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US 12,083,411 B2Granted
Skateboards with a multi-wheel truck
AssigneeKarsten Manufacturing Corporation
InventorsDylan R. Cappello, John A. Solheim, Jordan D. Shoenhair, Justin A. Paselk
Life of this patent
Estimating the term…
Abstract
A multi-wheel truck that minimizes wheel interactions with discontinuous and uneven surfaces. The truck provides a suspension system that absorbs impact force caused by uneven surfaces and a unique attack angle that allows obstacles to be traversed when approached from a wide range of angles.
Claims19
A truck comprising:
- a hanger comprising a first end and a second end spaced from the first end and a longitudinal axis extending from the first end to the second end;
- a wheel assembly located near one of the first end and the second end of the hanger and coupled to the hanger by a central axle, the wheel assembly comprising:
- a central wheel and a level arm each coupled to the central axle;
- wherein the level arm is configured to rotate about the central axle and
- comprises a front aperture, a middle aperture, and a rear aperture;
- a front axle received by the front aperture of the level arm;
- a rear axle received by the rear aperture of the level arm;
- a plurality of auxiliary wheels comprising:
- a leading wheel affixed to the front axle;
- a trailing wheel affixed to the rear axle;
- a shoulder wherein the shoulder further comprises a plurality of notches;
- an attack angle defined between a first reference line tangent to a forwardmost and outermost point of the leading wheel and a forwardmost and outermost point of the central wheel and a second reference line perpendicular to the longitudinal axis;
- wherein the wheel assembly further comprises a spring mechanism configured to limit rotation of the level arm about the central axle;
- wherein the spring mechanism comprises a spring insert received within a spring recess of the level arm;
- and
- wherein the spring mechanism comprises a substantially flat geometry that corresponds to the shape of the spring recess.
13 more elements
A truck comprising:
- a hanger, a pivot saddle, a baseplate, and a plurality of wheels;
- wherein the hanger comprises:
- a first end and a second end spaced from the first end;
- a longitudinal axis extending between the first and second end;
- a first central axle coupled to the first end and a second central axle coupled to the second end;
- wherein the first central axle comprises a first shoulder wherein the first shoulder further comprises a first plurality of notches;
- wherein the second central axle comprises a second shoulder wherein the second shoulder further comprises a second plurality of notches;
- wherein the first central axle and the second central axle extend along the longitudinal axis;
- a first central wheel coupled to the first central axle;
- a second central wheel coupled to the second central axle;
- an assembly;
- the assembly comprising:
- a first level arm coupled to the first central axle and a second level arm coupled to the second central axle;
- wherein the first level arm is configured to couple a first leading wheel and a first trailing wheel;
- wherein the second level arm is configured to couple a second leading wheel and a second trailing wheel;
- wherein the first level arm is configured to rotate about the first central axle;
- wherein the second level arm is configured to rotate about the second central axle;
- wherein the truck further comprises an attack angle defined as an angle between a first reference line and a second reference line;
- wherein the first reference line is tangent to a forwardmost and outermost point of the first leading wheel and a forwardmost and outermost point of the first central wheel;
- and wherein the second reference line is parallel to the longitudinal axis;
- wherein the truck further comprises a first spring mechanism and a second spring mechanism configured to limit rotation of the first level arm and the second level arm about the first central axle and the second central axle;
- wherein the first spring mechanism and the second spring mechanism comprises a first spring insert and a second spring insert received within a first spring recess of the first level arm and a second spring recess of the second level arm;
- and
- wherein the first spring mechanism and the second spring mechanism comprise a substantially flat geometry that corresponds to the shape of the first spring recess and the second spring recess.
21 more elements
Dependencies are inferred from the claim text.