Bicycle frame
AssigneeInspiral Cycles Limited
InventorGary EWING
Life of this patent
Estimating the term…
Abstract
A frame for a bicycle is disclosed. The bicycle also has a drivetrain, and a plurality of wheels. The frame has a main frame portion, a rear frame portion, a pair of shock absorber mounts, and a pair of linkages. The first linkage is pivotably connected to the rear frame portion and pivotably connected to the main frame portion. The second linkage is also pivotably connected to the rear frame portion and to the main frame portion and further provides a mounting for a drivetrain component such as an idler or bottom bracket. Both linkages also rotate in a counter direction relative to the rotation of the rear frame portion.
Claims19
A frame for a bicycle, the bicycle including said frame, a drivetrain and a plurality of wheels, the frame comprising:
- a main frame portion;
- a rear frame portion for receiving a rear wheel;
- a first linkage pivotably connected at a first location to said rear frame portion and pivotably connected at a second location, distal of said first location, to said main frame portion;
- a second linkage pivotably connected at a third location to said rear frame portion and pivotably connected at a fourth location, distal of said third location, to said main frame portion;
- and
- a plurality of shock absorber mounts for mounting a shock absorber for cushioning movement between said rear frame portion and said main frame portion, wherein said second linkage comprises at least one mounting for at least one component of a drivetrain of a bicycle, and wherein rotation of said rear frame portion in a first rotational direction relative to said main frame portion results in rotation of said first and second linkages in a second rotational direction relative to said main frame portion, said second rotational direction being opposite to said first rotational direction.
A bicycle, comprising:
- a front wheel;
- a rear wheel;
- a drivetrain;
- and
- a frame, comprising:
- a main frame portion;
- a rear frame portion for receiving said rear wheel;
- a first linkage pivotably connected at a first location to said rear frame portion and pivotably connected at a second location, distal of said first location, to said main frame portion;
- a second linkage pivotably connected at a third location to said rear frame portion and pivotably connected at a fourth location, distal of said third location, to said main frame portion;
- a shock absorber;
- and
- a shock absorber mount for mounting said shock absorber between said rear frame portion and said main frame portion, wherein said second linkage comprises a drivetrain mount for mounting a component of said drivetrain, and wherein rotation of said rear frame portion in a first rotational direction relative to said main frame portion results in rotation of said first and second linkages in a second rotational direction relative to said main frame portion, said second rotational direction being opposite to said first rotational direction.
Dependencies are inferred from the claim text.