Wednesday, March 01, 2017

3D Measuring Device Used to Check Frames

During the Tour de France 2012, the International Cycling Union has inaugurated checks of approved frames and forks in the field; this is done using a scanner. These checks enable the verification of the equipment used by the riders with respect to their conformance to the standards submitted by manufacturers to UCI for approval. In fact, since 1st January 2011 every new model of frame and fork must undergo a process resulting in the delivery of the “UCI Frame” label. This measure strengthens compliance with UCI regulations, and therefore guarantees the principle of equality between competitors.

Checks made during the Tour de France were aimed at five teams during the Belfort-Porrentruy stage on 8th July, and six others during the time-trial stage from Arc-et-Senans to Besançon (9th July).

“These checks in the field have been a success”, notes Julien Carron, UCI Technological Coordinator. “The procedure we established was intended to limit as far as possible any inconvenience to the teams; they welcomed the controlling staff because they know that these measures guarantee compliance with the regulations in a uniform and fair manner between all the teams.”

At the end of the race, the bikes selected to be checked were tagged with a tamper–proof bracelet including a bar code. The equipment was then checked at the hotel where the teams were staying at the end of each stage, with the help of a 3D measuring device that enables the user to scan the geometrical properties of the bikes. The results of the scan were compared with 3-dimensional drawings of the approved models in order to verify whether they were compliant or not. The procedure took under 15 minutes for each frame and fork model tested.

In order to perform this check, UCI used the Romer measuring arm, made by Hexagon Metrology The procedure will be repeated during the following months during Road, Track and Cyclo-Cross events.

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