Title

Collapsible Bicycle Frame

Presenter Information

Keith Stone

Document Type

Oral Presentation

Location

SURC Ballroom B/C/D

Start Date

21-5-2015

End Date

21-5-2015

Keywords

Collapsible, Bicycle, Frame

Abstract

Traveling with a full size bicycle can be problematic. A light weight bicycle frame was designed to collapse to be able to fit into carry-on luggage for transport on an airplane. The required dimensions of the suitcase are 22 by 14 by 9 inches. This bicycle was also designed to be able to sustain a load of 200 pounds, with minimal deflection throughout the frame. The frame was constructed using aluminum 6061-T6 tubes that were cut to a specific size to be used for telescoping tubes along the front triangle of the frame, known as the top, down, and seat tubes. The telescoping tubes are pin locked when extended to ensure the structural integrity of the frame. These hitch pins were selected due to the ball bearing at the end of the pin, which helps keep the pin in place while the bicycle is being used. The frame along the chain and seat stays of the frame use pin locking tube hinges. These hinges were specifically chosen for this project so that they could assist in easily collapsing the bicycle, while keeping the structural integrity of the bike intact. The designed frame was not to exceed 15 pounds and the finished product was successful, weighing in at less than 13 pounds. While the dimensions of the frame are 38 by 22 by 6 inches when fully extended, the final dimensions of the frame when it is collapsed are 22 by 14 by 5 inches. Other results include load and deflection testing.

Poster Number

27

Faculty Mentor(s)

Charles Pringle

Department/Program

Engineering Technologies, Safety, & Construction

Additional Mentoring Department

Engineering Technologies, Safety, & Construction

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May 21st, 2:30 PM May 21st, 5:00 PM

Collapsible Bicycle Frame

SURC Ballroom B/C/D

Traveling with a full size bicycle can be problematic. A light weight bicycle frame was designed to collapse to be able to fit into carry-on luggage for transport on an airplane. The required dimensions of the suitcase are 22 by 14 by 9 inches. This bicycle was also designed to be able to sustain a load of 200 pounds, with minimal deflection throughout the frame. The frame was constructed using aluminum 6061-T6 tubes that were cut to a specific size to be used for telescoping tubes along the front triangle of the frame, known as the top, down, and seat tubes. The telescoping tubes are pin locked when extended to ensure the structural integrity of the frame. These hitch pins were selected due to the ball bearing at the end of the pin, which helps keep the pin in place while the bicycle is being used. The frame along the chain and seat stays of the frame use pin locking tube hinges. These hinges were specifically chosen for this project so that they could assist in easily collapsing the bicycle, while keeping the structural integrity of the bike intact. The designed frame was not to exceed 15 pounds and the finished product was successful, weighing in at less than 13 pounds. While the dimensions of the frame are 38 by 22 by 6 inches when fully extended, the final dimensions of the frame when it is collapsed are 22 by 14 by 5 inches. Other results include load and deflection testing.