Patent ID: 6550355
Filing Date: 2003-04-22
Classification: E04G,Y10T

Abstract:
A bicycle crankshaft assembly, comprisinga frame tube having first and second end portions and defining a passage extending between said end portions; said first end portion defining a first opening, and said second end portion defining a second opening, said second opening having a different dimension than said first opening, said passage including a shoulder portion adjacent to said first opening; an axle securely assembled into said passage from said second end portion thereof, said axle including a bushing with a crankshaft rotationally supported therein, said crankshaft including first and second coupling portions extending over said first and second openings of said first and second end portions of said frame body; and a shockproof ring arranged between said bushing and passage in said shoulder portion for supporting said bushing within said passage; wherein said first opening is dimensioned such that a first end of said bushing is limited from extending therethrough.