Patent ID: 6237662
Filing Date: 2001-05-29
Classification: B60B,B60C,Y10T

Abstract:
A bicycle tire rim comprising:an annular rim formed with opposing first and second side walls and an annular support portion extending therebetween, said first and second side walls and said annular support portion being formed continuously such that said first and second side walls and said annular support portion are airtight with an airtight tire installed thereon;each of said first and second side walls being formed with an annular protrusion, said annular protrusion on said first side wall extending toward said protrusion on said second side wall; andfirst and second recesses formed in said annular rim, said first recess being formed between a portion of said annular protrusion on said first side wall and a portion of said annular support portion, and said second recess being formed between a portion of said annular protrusion on said second side wall and a portion of said annular support portion, each of said first and second recesses formed with a first surface extending in a generally radial direction and second surface extending along a portion of said annular support portion at an angle of about 45.degree. with respect to said first surface, said first and second recesses being configured to receive a bead of a tire and effecting an airtight seal between the beads of the tire and said first and second surfaces of said recesses, wherein each of said first and second recesses is formed by annular protrusions formed on said annular support portion.