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US 2019/0291529 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 first spring mounted around said damper, said first spring disposed to become compressed during a compression stroke of said damper;
- a second spring mounted around said damper, said second spring disposed to become compressed during a compression stroke of said damper;
- a preload piston coupled to at least one of said first spring and said second spring, said preload piston disposed to cause said at least one of said first spring and said second spring to become more compressed or less compressed as said preload piston moves relative to said damper;
- a remotely controllable preload adjuster coupled to at least one of said first spring and said second spring, said remotely controllable preload adjuster configured to partially compress or expand said at least one of said first spring and said second spring independently of said compression stroke;
- and
- a logic unit coupled to said shock absorber, said logic unit configured to send a signal to said remotely controllable preload adjuster, said signal to cause said remotely controllable preload adjuster to partially compress or expand said at least one of said first spring and said second spring.
4 more elements
Dependencies are inferred from the claim text.