Dual Box
Encyclopedia
Dual Box or DualBox is the trademark name for the patented tubular sidewall inline skating frame, which employs the mechanical properties of the tubular to optimize the performance of a frame or chassis that secures the wheels on an inline skate (a critical component of high performance skates).
Designed in 1999 by Dutch
Design Engineer Diederik Hol
at Mogema
, the Dual Box design was devised to optimize the elastic properties of inline skate frames (which the skater interprets as stiffness and feel, and contribute greatly to ride quality and power transmission) via the properties of the tubular sidewalls to enhance rigidity.
The Dual Box design successfully eliminates the need for horizontal cross-bracing in inline skate frames, and provided progressive flexural feel for the skater rather than the isolated areas of varying stiffness which were inherent to many, more traditional double-void extrusion
frames.
Through a product partnership with the Mogema company, the Rollerblade
professional racing team debuted the Dual Box frame to the world in 2001 after which time team athletes rode Dual Box frames across the finish line first in numerous Swiss Inline Cup, World Inline Cup
and World Championship events. During this time the Dual Box became one of the most recognized and successful frame designs in speed skating
, with 45 athletes winning their Gold, Silver and Bronze medals at the 2001 World Speed Skating Championship on the frames.
Since 2003, the Rollerblade company has produced Dual Box frames under licence from Mogema and has specified Dual Box technology in their high-performance skate product lines. Today, following the dissolution of Mogema in 2006, Dual Box designer Diederik Hol's own company CadoMotus produces its own skating frames based on an evolution of the Dual Box tubular sidewall.
Designed in 1999 by Dutch
Netherlands
The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...
Design Engineer Diederik Hol
Diederik Hol
Diederik Hol is a Dutch Design Engineer, designer of the patented Dual Box inline skate frame and the Narrow Shape Cross-Section ice blade, and founder/director of skate company CadoMotus Skating BV....
at Mogema
Mogema
Mogema is a registered brand trademark owned by Sportsinline International BV , a Dutch company that specialized in the design and production of inline- and ice speedskating products. Sportsinline International was founded by the parent company of the Mogema group to design and produce speedskating...
, the Dual Box design was devised to optimize the elastic properties of inline skate frames (which the skater interprets as stiffness and feel, and contribute greatly to ride quality and power transmission) via the properties of the tubular sidewalls to enhance rigidity.
The Dual Box design successfully eliminates the need for horizontal cross-bracing in inline skate frames, and provided progressive flexural feel for the skater rather than the isolated areas of varying stiffness which were inherent to many, more traditional double-void extrusion
Extrusion
Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section...
frames.
Through a product partnership with the Mogema company, the Rollerblade
Rollerblade
Rollerblade is a brand of inline skates owned by Nordica, part of the Tecnica Group of Trevignano, Treviso, Italy.The company was started by Scott Olsen and Brennan Olson in Minneapolis as Ole's Innovative Sports; when they sold the company, it became Rollerblade, Inc...
professional racing team debuted the Dual Box frame to the world in 2001 after which time team athletes rode Dual Box frames across the finish line first in numerous Swiss Inline Cup, World Inline Cup
World Inline Cup
The World Inline Cup is the leading competition in inline speed skating. It is accredited by the International Roller Sports Federation.The cup consists of a series of marathons held throughout the year. It was founded in 1998 as the European Inline Cup, and became the World Inline Cup in 2000....
and World Championship events. During this time the Dual Box became one of the most recognized and successful frame designs in speed skating
Inline speed skating
Inline speed skating is the sport of racing on inline skates It is often called inline racing by participants. Although it primarily evolved from racing on traditional roller skates, the sport is similar enough to ice speed skating that many competitors are now known to switch between inline and...
, with 45 athletes winning their Gold, Silver and Bronze medals at the 2001 World Speed Skating Championship on the frames.
Since 2003, the Rollerblade company has produced Dual Box frames under licence from Mogema and has specified Dual Box technology in their high-performance skate product lines. Today, following the dissolution of Mogema in 2006, Dual Box designer Diederik Hol's own company CadoMotus produces its own skating frames based on an evolution of the Dual Box tubular sidewall.