Patent ID: 8210554
Filing Date: 2012-07-03
Classification: B62K,Y10T

Abstract:
1. A bicycle frame assembly comprising: a seat tube; a head tube generally aligned with the seat tube and horizontally offset therefrom; at least one horizontal tube that extends between the seat tube and the head tube; a seat stay assembly that extends rearward from the seat tube; a chain stay that extends rearward from the seat tube generally under the seat stay; and a joint formed between at least two of the seat tube, head tube, horizontal tube, seat stay assembly and chain stay, the joint having a male portion and a female portion that overlap one another; the male portion having at least three steps of gradually increasing diameter in a direction moving away from a distal end of the male portion, each step being separated by a rise that is generally perpendicular to and formed between adjacent steps; the female portion having at least three steps that are each separated by a rise, the steps and rises of the female portion oriented in a substantially similar manner as the steps and rises of the male portion so that both of the steps and the rises of the male and female portion can be bonded together.