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US 10,881,946 B1Granted
Board sport learning kneeboard
OwnerRasyad Chunginventor
Life of this patent
Estimating the term…
Abstract
A truck with two rigid bodies and an elastomeric component wherein a front truck and a rear truck may be connected with a frame to comprise a riding device with a longitudinal roll axis coincident with a virtual line between a front virtual pivot point and a rear virtual pivot point. Each virtual pivot point is located at the intersection of a line projecting upward from the central point of a hanger axle axis and a hanger pivot axis. Virtual pivot points are the points about which the front and rear hanger pivot axis rotate as a result of rider input leaning to the right or left.
Claims16
A truck for a riding device comprising,
- two rigid bodies and at least one elastomeric component,
- a first rigid body comprising a hanger assembly with a projecting member, and at least two radial u-bolts wherein each u-bolt has a first end and a second end,
- a second rigid body comprising an upper base-bushing with a forward radial bearing channel and a rear radial bearing channel, a lower base-bushing with a forward radial bearing channel and a rear radial bearing channel, and a mounting u-bolt that secures together the upper base-bushing and the lower base-bushing forming an annular column,
- at least one elastomeric component sandwiched between a recessed area in the projecting member of the hanger and a recessed area in the lower base bushing, and
- a first radial u-bolt slides within and is moveably constrained by the forward radial bearing channels of the upper base-bushing and the lower base-bushing, and the first end and the second end of the first radial u-bolt are secured to the projecting member, and a second radial u-bolt slides within and is moveably constrained by the rear radial bearing channels of the upper base-bushing and the lower base-bushing, and the first end and the second end of the second radial u-bolt are each secured to the projecting member, forming a revolute joint around a hanger pivot axis,
- the hanger pivot axis that is coincident with a virtual line along a length of the annular column defined by the base-bushings, and
- wherein the movement of the first radial u-bolt and second radial u-bolt in the radial bearing channels defines the rotation of the first rigid body around the hanger pivot axis relative to the second rigid body.
4 more elements
A truck for a riding device comprising,
- two rigid bodies and at least one elastomeric component,
- a first rigid body comprising a hanger assembly with a projecting member, and one radial u-connector wherein the u-connector comprises a first u-strap, a second u-strap, wherein the radial u-connector is secured to the projecting member,
- a second rigid body comprising an upper base-bushing with a forward radial bearing channel and a rear radial bearing channel, a lower base-bushing with a forward radial bearing channel and a rear radial bearing channel, and a mounting u-bolt that secures together the upper base-bushing and the lower base-bushing forming an annular column,
- at least one elastomeric component sandwiched between a recessed area in the projecting member of the hanger and a recessed area in the lower base bushing,
- the first u-strap slides within and is moveably constrained by the forward radial bearing channels of the upper base-bushing and the lower base-bushing, and the second u-strap slides within and is moveably constrained by the rear radial bearing channels of the upper base-bushing and the lower base-bushing, forming a revolute joint,
- a hanger pivot axis, wherein the hanger pivot axis is coincident with the revolute joint and is coincident with a virtual line along a length of the annular column defined by the base-bushings, and
- wherein the movement of the first radial u-strap and second radial u-strap in the radial bearing channels defines the rotation of the first rigid body around the hanger pivot axis relative to the second rigid body.
4 more elements
Dependencies are inferred from the claim text.