ONE TOUCH™ CAN OPENER INTERNATIONAL DESIGN EXCELLENCE AWARDS 2007 GOLD WINNER CASE STUDY
To meet such strict size criteria, maximum function and efficiency was required from a minimum number of parts. To achieve the necessary reduction in parts, value engineering and intense optimization was called for, central to which was the injection moulding process which would enable multiple features and functions to be integrated into each part.
Using injection moulding conveniently afforded the creative team together with lead design consultant Mark Sanders of MAS Design Products Ltd., the almost total creative freedom that a project such as this called for. Most of the design goals were indeed met when it was realised that the drive gearing for the powerful cutter could be combined with a ‘geneva mechanism’ for the timing function using the same parts
Through the use of injection molded polymers and high quality multi-cavity molds, the complexity and precision required for each part was achieved. For the internal mechanism, Acetal (plastic polyoxymethylene) was chosen for its rigidity and durability as well as its ability to reduce friction. Choosing Acetal also eliminated the necessity for separate bearings, allowing the part count to be reduced even further.
The result was a unique (and patented) mechanism, made of just parts. Several functions being integrated into each part which can generate the necessary 50 Kg force, provide the timing function and still be efficient enough to open over 100 cans with just one set of AA batteries.