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US 6,270,065 B1Granted
Seat suspension assembly for a two-wheeler
AssigneeCato Hals Design AS
InventorCato Hals
Life of this patent
Estimating the term…
Abstract
A seat suspension assembly for a bicycle has a movable and cushioning intermediate section between a lower seat post part and an upper seat attachment part. The intermediate section comprises parallel bars journalled to a head on top of the seat post, and to the seat attachment part. A springing mechanism is equipped with a system for adjusting the effective spring rate of the springing mechanism.
Claims15
A seat suspension assembly for a vehicle, comprising:
- a seat attachment part having at least two first bearing portions;
- a seat post part including a seat post and a seat post head attached to a top of said seat post, with at least two second bearing portions provided on said seat post head;
- at least two generally parallel bars each having a first end and a second end, with the first end of one of said bars being journalled to one of said first bearing portions, the second end of said one bar being journalled to one of said second bearing portions, the first end of a second of said bars being journalled to another of said first bearing portions, and the second end of said second bar being journalled to another of said second bearing portions;
- a spring mechanism arranged adjacent said at least two bars to provide an upwardly directed force against said seat attachment part such that said at least two bars extend obliquely from said at least two second bearing portions to said at least two first bearing portions;
- and
- a system to adjust the effective spring rate of said spring mechanism, wherein said spring mechanism includes a linearly acting spring having first and second ends with a spring acting line passing therethrough, and wherein said system is to adjust the effective spring rate of said spring mechanism by laterally shifting said first end of said spring relative to said spring acting line.
3 more elements
A seat suspension assembly for a vehicle, comprising:
- a seat attachment part having at least two first bearing portions;
- a seat post part having at least two second bearing portions,
- at least two generally parallel bars each having a first end and a second end, with the first end of one of said bars being journalled to one of said first bearing portions, the second end of said one bar being journalled to one of said second bearing portions, the first end of a second of said bars being journalled to another of said first bearing portions, and the second end of said second bar being journalled to another of said second bearing portions;
- a torsion spring having a hub and a first and a second arm extending from said hub, with said hub surrounding one of said bearing portions, said first arm engaging one of said at least two bars, and said second arm engaging one of said seat attachment part and said seat post part;
- a spring mechanism arranged adjacent said at least two bars to provide an upwardly directed force against said seat attachment part;
- and
- a system to adjust the effective spring rate of said spring mechanism.
4 more elements
A seat suspension assembly for a vehicle, comprising:
- a cupulate seat attachment part having at least two first bearing portions projecting from an inner surface thereof;
- a cupulate seat post part having at least two second bearing portions projecting from an inner surface thereof;
- at least two substantially parallel bars each having a first end and a second end, with the first end of one of said bars being journalled to one of said first bearing portions, the second end of said one bar being journalled to one of said second bearing portions, the first end of a second of said bars being journalled to another of said first bearing portions, and the second end of said second bar being journalled to another of said second bearing portions;
- and
- a spring mechanism arranged adjacent said bars to provide an upwardly directed force against said seat attachment part.
2 more elements
Dependencies are inferred from the claim text.