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US 2021/0260951 A1Published application
Suspension with hydraulic preload adjust
AssigneeFox Factory, Inc.
InventorChristopher Paul COX
Life of this patent
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Abstract
A shock absorber for a vehicle having a damper and a first and second springs mounted coaxially around the damper and a preload adjuster for partially compressing at least one of the springs independently of the compression stroke. In one embodiment the preload adjuster is remotely controllable. In another embodiment the shock absorber includes an additional mechanism for preloading at least one of the springs.
Claims1
A shock absorber comprising:
- a damper with a cylinder, said cylinder having a piston and rod therein;
- a spring mounted around said damper, said spring disposed to become compressed during a compression stroke of said damper;
- a preload piston coupled to said spring, said preload piston disposed to cause said-spring to become more compressed or less compressed as said preload piston moves relative to said damper;
- and
- a preload adjuster coupled to said spring, said preload adjuster configured to partially compress or expand said spring independently of said compression stroke, said preload adjuster including a chamber configured to contain a compressible fluid, said compressible fluid and said spring creating a composite spring rate during operation of said shock absorber.
2 more elements
Dependencies are inferred from the claim text.