Patent ID: 6196638
Filing Date: 2001-03-06
Classification: B60B

Abstract:
A bicycle wheel, comprising:a central portion;a plurality of first spoke portions extending outwardly from said central portion with each of said first spoke portions having a first inner end coupled to said central portion and a first outer end;a plurality of second spoke portions extending outwardly from said central portion between said first spoke portions, each of said second spoke portions having a second inner end coupled to said central portion and a second outer end;an annular rim portion having an outer peripheral surface forming a tire receiving recess thereon and an inner peripheral surface coupled to said first and second outer ends of said first and second spoke portions, said first outer ends of said first spoke portions being circumferentially spaced by a first distance from an adjacent one of said second spoke portions located on one side and circumferentially spaced by a second distance from another adjacent one of said second spoke portions on the other side, said second distance being smaller than said first distance; anda plurality of rib portions extending from said inner peripheral surface of said annular rim portion between at least some of said first and second spoke portions that are separated by said first distance, each of said rib portions having a circumferential dimension extending between its ends and a radial dimension, said radial dimension of each of said rib portions increasing in length as each of said rib portions extend from said ends to a middle rib section.