Patent ID: 6199887
Filing Date: 2001-03-13
Classification: B62J,Y10T

Abstract:
An extension tube assembly for a bicycle having a hub with an extended member and having a fork with an attachment plate through which the extended member extends, comprising:an extension tube including a first end and a second end, a polygonal compartment being defined in the first end of the extension tube;a positioning member formed corresponding to the polygonal compartment and thus fittingly yet releasably received in the polygonal compartment and adapted to removably abut with the attachment plate of the fork; anda fastener for abutment with the extension tube opposite to the positioning member;wherein the positioning member, a bottom wall defining the polygonal compartment, and the fastener are adapted so that the extended member of the hub extended through the attachment plate can be extended through the positioning member and the bottom wall defining the polygonal compartment and then releasably secured by the fastener.