US 11,718,137 B2
Shock assembly with automatically adjustable ride height
Nick D'Orazio, Santa Cruz, CA (US); Michael R. Labbe, Scotts Valley, CA (US); Rick Strickland, Dacula, GA (US); and Connor Randall, Salida, CO (US)
Assigned to Fox Factory, Inc., Duluth, GA (US)
Filed by Fox Factory, Inc., Duluth, GA (US)
Filed on Feb. 25, 2021, as Appl. No. 17/185,766.
Claims priority of provisional application 63/110,204, filed on Nov. 5, 2020.
Claims priority of provisional application 62/982,629, filed on Feb. 27, 2020.
Prior Publication US 2021/0268857 A1, Sep. 2, 2021
Int. Cl. B60G 15/06 (2006.01); F16F 9/32 (2006.01); F16F 9/512 (2006.01)
CPC B60G 15/062 (2013.01) [F16F 9/3264 (2013.01); F16F 9/5126 (2013.01); B60G 2202/312 (2013.01); B60G 2500/114 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A shock assembly comprising:
a main chamber comprising a fluid therein;
a pump tube within said main chamber, said pump tube having a fluid flow path internal thereto, said pump tube disposed axially along a center of said main chamber;
a damping piston coupled to a shaft, said damping piston and a portion of said shaft disposed axially about said pump tube, said damping piston disposed in said main chamber to divide said main chamber into a compression side fluid chamber and a rebound side fluid chamber;
an automatic ride height adjustment assembly comprising:
a tube-in-shaft pump assembly; and
a spring preload piston assembly;
wherein said tube-in-shaft pump assembly comprises:
an intake/exhaust port through a portion of said pump tube; and
a fluid path from said pump tube to said spring preload piston assembly;
wherein an axial motion of said damping piston and said shaft along said pump tube during a compression stroke pump said fluid through said pump tube and into said spring preload piston assembly; and
wherein a SAG ride height is established by an axial location of said intake/exhaust port of said pump tube.