Roc (Rotary Compact Cycle Pump) by Gareth Bristow
2012 - 2013, Silver A' Engineering and Technical Design Award Winner
Inspiration
Pumped Ltd was formed by Gareth Bristow and Philip Pike in 2012 to exploit the mechanical advantages of an innovative patented mechanical device, designed by Gareth, that converts a single rotary action into multiple linear movements, with obvious uses for air and fluid displacement. With numerous markets and industrial sectors that would benefit from highly efficient and compact pumps, it was decided that the initial focus would be on a segment of the leisure market Gareth and Philip know very well. Drawing upon their years of experience as cycling enthusiasts, Philip and Gareth are only too aware of the time and effort that is required to inflate a cycle tyre even with the best hand pumps presently on the market. Currently the top selling small pumps require at least 8 pumping actions to achieve 1 psi of pressure and the worst requiring 20 or more pumping actions. With a mountain bike tyre requiring a pressure of 50 psi, it can take considerable time and effort to inflate a tire. They indentified a clear potential for a range of compact cycle pumps that are smaller and deliver an increased volume displacement, that result in far quicker inflation times than those presently on the market. Gareth has now completed the design and development of a range of compact hand pumps that are smaller and deliver at least twice as much air volume per stroke than the current best mini pump design on the market.
Creativity
Innovative features include an ultra compact rotary design that produces a large pumped air volume, giving quicker inflation times and better ergonomics that making tyre inflation easier and reduced chance of breaking valve stems. The ROC pump exploits the mechanical advantages of an innovative and new patented mechanical device that converts a single rotary action into multiple linear movements. ROC pumps are smaller and deliver at least twice as much air volume per stroke than the current best mini pump design on the market. This will give far shorter tyre inflation times with the benefit of less time fixing punctures and giving more time cycling. A cosmetic prototype of the ultra compact pump and working model of the internal mechanism has been recently produced and the manufacture a fully functional prototype to fully test the pump’s operation against the expected specifications in currently underway.
Design Challenges
Gareth Bristow did not encounter any design challenges while designing the award winning Roc Rotary Compact Cycle Pump.
Production Technology
From an engineering point of view, the Roc Rotary Compact Cycle Pump by Gareth Bristow is a good example of a highly-developed project.
       
     
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