Patent ID: 6048035
Filing Date: 2000-04-11
Classification: B60B

Abstract:
A bicycle wheel rim comprising:an annular frame formed from a metal strip with opposite end portions, said annular frame having a central axis and includingspaced left and right annular tire retaining walls adapted for retaining a bicycle tire therebetween, each of said tire retaining walls having an inner edge proximate to the central axis, and a brake pad contacting surface opposite to the other one of said tire retaining walls,an annular inner spoke mounting wall interconnecting said inner edges of said tire retaining walls, andan annular outer connecting wall disposed around said spoke nounting wall and interconnecting said tire retaining walls,said tire retaining walls, said spoke mounting wall and said outer connecting wall cooperatively confining an annular channel,each of said left and right annular tire retaining walls, said spoke mounting wall and said outer connecting wall having two confronting end faces that are disposed respectively at said end portions of said metal strip and that are in close contact with each other;a connecting member fitted in said channel and extending into said end portions of said metal strip; anda weld connection provided solely on said confronting end faces of at least one of said spoke mounting wall and said outer connecting wall to bond together said end portions of said metal strip, said brake pad contacting surfaces of said tire retaining walls being free of any weld flash.