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.
Claims10
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 an outer surface comprised of a plurality of equally spaced generally circular raised bands of ridges running parallel about its circumference which provide a grip surface for a rider's footwear,
- wherein said outer layer has a second centered, symmetrical, cylindrical cavity with a diameter equal to or larger than, an 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 first portion comprises a single piece having a plurality of integral cylindrical pegs that are formed as a part of said first portion, protruding perpendicularly from said mating surface, wherein said second portion has a plurality of holes spaced to receive said pegs,
- wherein said inner layer further comprises two hemicylindrical portions, which contacts and holds via friction said foot-operated gear shifter of the motorcycle, and prevents rotational and lateral movement between the foot-operated gear shifter and said gear shifter cover, and
- wherein said inner layer and said outer layer are joined via a plurality of continuous raised ridges and grooves, wherein said raised ridges are arranged transversely along the axis running parallel about its circumference and which mate with the plurality of corresponding grooves arranged transversely along the axis, such that said plurality of raised ridges fit securely into said plurality of grooves to prevent lateral axial movement between said outer layer and said inner layer.
A motorcycle gear shifter cover comprising a generally cylindrical hollow tube having a first centered, symmetrical, cylindrical cavity, shaped to accept a 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 larger than an outer diameter of said inner layer,
- wherein said outer layer has an inner wall with two continuous parallel recessed grooves perpendicular to said concentric axis, wherein said inner layer has an outer wall, with an outer diameter, having two continuous 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 consists of a single piece having four integral cylindrical pegs that are formed as a part of said first portion, protruding perpendicularly from said mating surface, wherein said second portion has four holes spaced to receive said pegs,
- wherein each peg in said four integral cylindrical pegs terminates in a free end, said free end having a flange running about its circumference which engages an inner surface of one of the four holes in said second portion,
- 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 the motorcycle, and prevents rotational and lateral movement between the foot-operated gear shifter and said gear shifter cover.
Dependencies are inferred from the claim text.