BRIEF DESCRIPTION OF DRAWINGS
The invention will be better understood from the description that follows, with reference to the annexed drawings, in which:
FIG. 1 is a view of the prior art;
FIG. 2 is a perspective view of a first embodiment of the invention;
FIG. 3 is a cross-sectional view of the interface device of FIG. 2;
FIG. 4 is a perspective view of a second embodiment of the invention;
FIG. 5 is a cross-sectional view of the interface device of FIG. 4;
FIG. 6 is a top view of the stiffener of the interface device of FIG. 4;
FIG. 7 is a transverse cross-sectional view of a gliding board provided with a gliding device according to a third embodiment of the invention;
FIG. 8 is partial longitudinal cross-sectional view of the gliding board and of the interface device of FIG. 7;
FIG. 9 is a top view of the gliding board and of the interface device of FIG. 7.