Patent ID: 6398247
Filing Date: 2002-06-04
Classification: B62J

Abstract:
A bicycle comprising:a frame including a seat tube, a crossbar extending forwardly of said seat tube, and a tubular connection part connected to and projecting upward from a rear end of said crossbar and sleeved around said seat tube, said seat tube extending upward from said tubular connection part, said tubular connection part having an integral first engagement block projecting rearwardly therefrom; a rack support rod having a front end with a front end face extending in a plane transverse to said rack support rod, a rear support portion extending rearwardly of said front end, and a second engagement block connected integrally to said front end, said second engagement block having a rear connecting face abutting with and connected integrally to said front end face, and an opposite front engagement face to interlock with said first engagement block, said rear connecting face and said front engagement face extending along a direction substantially parallel to said plane of said front end face; a rack member disposed above and fixed to said rear support portion; and mortise-tenon engagement means formed in said first engagement block and said front engagement face for releaseably interlocking said first and second engagement blocks, said mortise-tenon engagement means including a mortise member formed in one of said first engagement block and said front engagement face, and a tenon formed on the other one of said first engagement block and said front engagement face, said second engagement block being slidable relative to said first engagement block along a line substantially parallel to said plane of said front end face.