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The purpose of this experiment is to research and design an innovative bike that serves a dual purpose of a reclining chair and an off road bike. This invention is designed to provide users the ability to work or relax off the beaten track for an entire day while minimizing the amount of supplies needed. Our design was influenced by the research done with regards to cost of production, ease of use, safety, and bicycle functionality. These considerations were made priorities so that the final product would be the most cost effective, quality product possible.
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CONVERTIBLE BIKE CHALLENGE
TAYLOR AMAREL & KAITLIN THOMAS
Problem
To comfortably work or relax off the beaten path for an entire day requires carrying bulky, heavy equipment and tools.
Current Obstacles
Reaching remote locations Carrying heavy supplies Assembling cumbersome equipment Purchasing multiple products and
supplies
Solution
Design a bike that satisfies the following parameters: Capable of off-road travel Converts into a hammock or recliner Minimizes excess equipment required Safe and easy to use Viable price point for the target market Provides the ability to work or relax
Design Ideas
“Concept Frame Design” Features:
Collapsible concept frame Recliner style chair
Advantages: Great aesthetics Lowest risk of serious injury
Disadvantages: Expensive to manufacture Uncertain bike functionality
Design Ideas
Figure 1a. Initial Concept Sketch of the Conceptual Frame Design in bike form
Figure 1b. Initial Concept Sketch of the Conceptual Frame Design in chair form
“Concept Frame Design”
Design Ideas
“Suspended Seat Design” Features:
Inverted bike frame with telescoping members Hammock style seat
Advantages: Cheaper than the Concept Frame Design
Disadvantages: Complicated to manufacture Diminished bike functionality Unstable when in use
Design Ideas
Figure 2a. Initial Concept Sketch of the Suspended Seat Design in bike form
Figure 2b. Initial Concept Sketch of the Suspended Seat Design in chair form
“Suspended Seat Design”
Design Ideas
“Final Design” Features:
Inverted mountain bike frame with hinged member
Hammock style Advantages:
Inexpensive and unobtrusive modifications Streamlined conversion process Completely maintains bike functionality
Disadvantages: Requires custom parts
Design Ideas
Figure 3a. Final sketch of the Final Design in hammock form
Figure 3b. Final sketch of the Final Design in hammock form with material
“Final Design”
Selection Process
Criteria Concept Frame Design Suspended Seat Design
Final Design
Cost 1 8 7
Functionality 7 3 7
Aesthetics 6 4 10
Safety 8 4 9
Ease of Use 6 3 9
Special Requirements 8 7 8
Conversion Time 5 4 7
Table 1. A qualitative table of bike characteristic ratings with 10 being the best and 0 being the worst, these are estimates based on design and inherent advantages or disadvantages.
Research Model Conversion Process
Figure 4. Position 1
Research Model Conversion Process
Figure 5. Position 2
Research Model Conversion Process
Figure 6. Position 3
Research Model Conversion Process
Figure 7. Position 4
Research Model Conversion Process
Figure 8. Position 5
Research Model Conversion Process
Figure 9. Position 6
Prototype Model
Figure 10. Photograph of the prototype for the Final Design in hammock form with material
Conclusion
Overall the Final Design proved to be the most viable option for a variety of reasons. Prefabricated mountain bike frame reduces
cost Unmodified frame increases safety Multi-purpose components reduce cost Compact reconfiguration and storage No tools required
References
Suciu, Peter. "Creating Bikes And Parts With A 3D Printer - BikeRadar." Bikes, Bike Reviews, Cycling Routes, Race News - BikeRadar. Bike Radar, 20 Aug. 2012. Web. 26 Nov. 2012. <http://www.bikeradar.com/news/article/creating-bikes-and-parts-with-a-3d-printer-34996/>.
Autodesk Inc.. "Autodesk - AutoCAD - Select a Service Provider to Print Your AutoCAD 3D Model." Autodesk - 3D Design & Engineering Software for Architecture, Manufacturing, and Entertainment. Autodesk Inc., 18 May 2011. Web. 26 Nov. 2012. <http://usa.autodesk.com/adsk/servlet/pc/item?id=13779273&siteID=123112>.
"Labor Rates - Wheelworks Bicycle Stores and Cycling Centers." Wheelworks Bicycle Stores and Cycling Centers - The New England Bicycle Source. N.p., 13 Apr. 2011. Web. 26 Nov. 2012. <http://wheelworks.com/articles/labor-rates-pg132.htm>.
"Shimano Parts - Bicycles and gear for every type of riding - Diamondback, Fox, Giant, Raleigh, Felt, Santa Cruz & more." BicycleWarehouse.com - Largest Bicycle Retailer in San Diego - 8 Locations in San Diego and Riverside County. N.p., 14 Oct. 2008. Web. 26 Nov. 2012. <http://www.bicyclewarehouse.com/product-list/shimano-parts-pg286/>.
"Technology | Reliable and durable bike manufacturing." Rocky Mountain Bicycles | Mountain, road, urban & path bikes. N.p., 26 Aug. 2011. Web. 26 Nov. 2012. <http://www.bikes.com/main+en+02_100+technology.html>.
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