Fastening device for gliding board and board equipped with such a device

A fastening device for a sliding board comprising a base that defines a housing in which a shoe is designed to be immobilized by maintaining means that includes a vertical locking pivot linkable with a board, wherein said base comprises a lower plate and an upper plate designed to support the shoe and said pivot comprises a horizontal wedging disk maintained in a stationary angular position relative to the board when the wedging disk is secured to the board, the wedging disk being inserted between the upper plate and the lower plate to allow a simultaneous rotating of both plates around the wedging disk and a sliding displacement of one of the plates relative to the other plate to adjust the length of the housing to the size of the shoe when the pivot is in an unlocked position, said pivot also comprising only one tightening member for tightening the wedging disk and the two plates together on to the board and for simultaneously locking the rotating and the sliding displacement,

• wherein at least one of the plates is provided with a first oblong orifice coinciding with a second orifice formed opposite it on the other plate, said orifices being designed to receive the wedging disk of said pivot, and
• wherein at least one of the first oblong orifice or the second orifice is formed at the center of a cylindrical shoulder bearing, on its perimeter, rotational locking elements which cooperates with rotation locking elements realized on one surface of the wedging disk when the pivot is in a locked position.