Motorcycle Gear Shifter Cover
AssigneeUniversity of Akron Research Foundation
InventorsDerek Darnell Fromby, Shasta Sadler
Life of this patent
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Abstract
A motorcycle gear shifter cover comprising a pair of hemicylindrical halves, wherein each half has a first centered, symmetrical, cylindrical cavity for mounting on the shift peg of a of a motorcycle and comprises two layers, an outer layer and an inner layer, and wherein the outer layer and the inner layer share a common, concentric axis and wherein the outer layer has mating surfaces for joining and affixing said halves around a gear shift peg, and the inner layer contacts and holds the foot-operated gear shifter to prevent movement between the gear shifter and the gear shifter cover.
Claims16
A motorcycle gear shifter cover comprising a pair of hemicylindrical halves, wherein each half has a first centered, symmetrical, cylindrical cavity, shape for mounting on the shift peg of a foot-operated gear shifter of a motorcycle, said hemicylindrical halves comprising two layers, an outer layer and an inner layer,
- wherein said outer layer surrounds said inner layer and wherein said outer layer and said inner layer share a common, concentric axis and said first centered, symmetrical, cylindrical cavity,
- wherein said outer layer has a second centered, symmetrical, cylindrical cavity with a diameter equal to, or slightly larger than, the outer diameter of said inner layer,
- wherein said outer layer has an inner wall, wherein said inner layer has an outer wall,
- wherein said outer layer further comprises two hemicylindrical portions having mating surfaces, a first portion and a second portion,
- wherein said portions have mean for joining said halves around a gear shift peg and affixing said halves to said gear shift peg, and
- wherein said inner layer further comprises two hemicylindrical portions, which contacts and holds via friction said foot-operated gear shifter of a motorcycle, and prevents rotational and lateral movement between said gear shifter and said gear shifter cover.
A motorcycle gear shifter cover comprising a generally cylindrical hollow tube having a first centered, symmetrical, cylindrical cavity, shaped to accept the foot-operated gear shifter of a motorcycle, said cover comprising two layers, an outer layer and an inner layer,
- wherein said outer layer surrounds said inner layer and wherein said outer layer and said inner layer share a common, concentric axis and said first centered, symmetrical, cylindrical cavity,
- wherein said outer layer has a second centered, symmetrical, cylindrical cavity with a diameter equal to, or slightly larger than, the outer diameter of said inner layer,
- wherein said outer layer has an inner wall with two parallel recessed grooves perpendicular to said concentric axis, wherein said inner layer has an outer wall, with said outer diameter, having two parallel protruding ridges perpendicular to said concentric axis, such that said protruding ridges align and mate with said recessed groves and prevent lateral axial movement of said inner layer relative to said outer layer,
- wherein said outer layer has an outer surface comprised of ten equally spaced generally circular raised bands of ridges running parallel about its circumference which provide a grip surface for the rider's footwear,
- wherein said outer layer further comprises two hemicylindrical portions having mating surfaces, a top portion and a bottom portion, wherein said top portion has four integral cylindrical pegs protruding perpendicularly from said mating surface, wherein said second portion has four holes spaced to receive said pegs,
- wherein each peg in said pegs terminates in a free end, said free end having a flange running about its circumference which engages the inner surface of an individual hole in said holes in said second portion,
- wherein said each peg has a small gap of 1 mm or less running parallel to and along its length centered along its diameter, originating at said mating surface of said top portion and terminating at said free end, and
- wherein said inner layer further comprises two hemicylindrical portions, wherein said portions are comprised of rubber which contacts and holds via friction said foot-operated gear shifter of a motorcycle, and prevents rotational and lateral movement between said gear shifter and said gear shifter cover.
Dependencies are inferred from the claim text.