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US 12,559,192 B2Granted
Frame for multi-wheeled vehicle
OwnerJohn Campbell Kappsinventor
Life of this patent
Estimating the term…
Abstract
A multi-wheeled vehicle (e.g., bicycle, tricycle, quadricycle) frame includes a head tube, a seat tube, a top tube, a brace member, and a down tube. The seat tube is disposed away from the head tube. The top tube is coupled to the seat tube and coupled to the head tube. The brace member is coupled to the seat tube and coupled to the head tube. The down tube is coupled to the seat tube and coupled to the head tube.
Claims20
A frame for a multi-wheeled vehicle, the frame comprising:
- a head tube;
- a seat tube disposed away from the head tube, the seat tube defining a seat tube neutral axis;
- a top tube coupled to the seat tube at a first seat tube work point and coupled to the head tube at a first head tube work point, the top tube defining a top tube neutral axis, wherein the seat tube neutral axis and the top tube neutral axis intersect at the first seat tube work point;
- a brace member coupled to the seat tube and coupled to the head tube, the brace member defining a brace member neutral axis;
- and
- a down tube coupled to the seat tube at a second seat tube work point and coupled to the head tube at a second head tube work point, the down tube defining a down tube neutral axis, wherein the seat tube neutral axis and the down tube neutral axis intersect at the second seat tube work point,
- wherein the brace member is coupled to the seat tube at the first seat tube work point or the second seat tube work point such that the brace member neutral axis intersects with the seat tube neutral axis and the top tube neutral axis at the first seat tube work point or with the seat tube neutral axis and the down tube neutral axis at the second seat tube work point.
4 more elements
A method for assembling a multi-wheeled vehicle, the method comprising:
- coupling a top tube to a seat tube at a first seat tube work point and to a head tube at a first head tube work point, the top tube defining a top tube neutral axis and the seat tube defining a seat tube neutral axis, wherein the seat tube neutral axis and the top tube neutral axis intersect at the first seat tube work point;
- coupling a down tube to the seat tube at a second seat tube work point and to the head tube at a second head tube work point, the down tube defining a down tube neutral axis, wherein the seat tube neutral axis and the down tube neutral axis intersect at the second seat tube work point;
- and
- coupling a brace member to the seat tube and the head tube, the brace member defining a brace member neutral axis, wherein the brace member is coupled to the seat tube at the first seat tube work point or the second seat tube work point such that the brace member neutral axis intersects with the seat tube neutral axis and the top tube neutral axis at the first seat tube work point or with the seat tube neutral axis and the down tube neutral axis at the second seat tube work point.
1 more element
A multi-wheeled vehicle comprising:
- a head tube;
- a seat tube disposed away from the head tube;
- a top tube coupled to the seat tube and coupled to the head tube;
- a brace member coupled to the seat tube and coupled to the head tube;
- a down tube coupled to the seat tube and coupled to the head tube;
- a seat stay having a first end and a second end, the first end of the seat stay pivotally coupled to the seat tube at a first location;
- and
- a chain stay having a first end and a second end, the first end of the chain stay pivotally coupled to the seat tube at a second location and the second end of the chain stay pivotally coupled to the second end of the seat stay.
5 more elements
Dependencies are inferred from the claim text.