Collapsible Bicycle Frame
Document Type
Oral Presentation
Campus where you would like to present
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.
Recommended Citation
Stone, Keith, "Collapsible Bicycle Frame" (2015). Symposium Of University Research and Creative Expression (SOURCE). 42.
https://digitalcommons.cwu.edu/source/2015/constructedobjects/42
Poster Number
27
Department/Program
Engineering Technologies, Safety, & Construction
Additional Mentoring Department
Engineering Technologies, Safety, & Construction
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.
Faculty Mentor(s)
Charles Pringle