Abstract: A bicycle (10) with a frame (12) formed out of composite material is disclosed. The frame of this bicycle includes a head unit or module (34) that is attached to two body units (36, 38). The head unit and body unit are formed out of a urethane core and can be formed of stiffened fiberglass, carbon fibers, or like nonmetallic material. The head unit and body units are formed with bores (78, 81, 83, 90) in which sleeves and cables are seated to accommodate the installation of the other components of the bicycle to the frame. The body is further formed with a set of rearwardly extending members that form the chain stays (22) of the bicycle. Dropouts (104) are seated in recesses formed in the chain stays. The bicycle includes a front derailleur/rear brake assembly (30) with a front derailleur (134) that can be both selectively moved up and down and selectively pivoted along a lateral axis of the bicycle. By selecting an appropriately sized head unit, the frame of the bicycle can built to a specific size.
Abstract: A bicycle including a novel bicycle frame and seat support as disclosed. Bicycle frame includes a top tube as a first section extends substantially vertically from the second section extends diagonally downward towards the rear tube to which two frame stays which are joined to chain stays adjacent the rear wheel hub are attached. A center tube extends from a bottom bracket to the top tube section adjacent where the frame stays are joined to the top tube. A beam seat support formed out of a pair of elongated beams is attached to the frame top tube first section. A bicycle seat is attached to the end of the beam seat support.
Type:
Grant
Filed:
August 31, 1993
Date of Patent:
January 17, 1995
Assignee:
Allsop, Inc.
Inventors:
James D. Allsop, Paul Barkley, David E. Calapp
Abstract: A bicycle including a novel bicycle frame and seat support as disclosed. Bicycle frame includes a top tube as a first section extends substantially vertically from the second section extends diagonally downward towards the rear tube to which two frame stays which are joined to chain stays adjacent the rear wheel hub are attached. A center tube extends from a bottom bracket to the top tube section adjacent where the frame stays are joined to the top tube. A beam seat support formed out of a pair of elongated beams is attached to the frame top tube first section. A bicycle seat is attached to the end of the beam seat support.
Type:
Grant
Filed:
April 22, 1992
Date of Patent:
August 31, 1993
Assignee:
Allsop, Inc.
Inventors:
James D. Allsop, Paul Barkley, David E. Calapp
Inventors:
Jason Avery, Stephen Chen, Tyler Do, Amelia Helmick, Jeffrey Kelsoe, Sean Lim, Paul Van Wieren, Andrew Wilson, Andrew Reuter, Diego Meneses, Jonathan Viner, Joshua Viner, Matthew Alfin, Zachary Rapoport, Samuel Ach