Connection device between members of a machine

Device according the previous claim, characterised in that said displacement means are suitable for mutually displacing said second coupling with respect to said first coupling by an amount proportional to the relative displacement of the two elements of the first coupling.

Machine tool comprising a connection device between its members comprising at least one first and one second coupling suitable for being connected together to orientate said members of said machine in work position, characterised in that said first coupling comprises at least one first and one second toothed elements mutually mobile between an initial reference configuration and a work configuration corresponding to a predetermined orientation of said members of said machine tool, said second coupling comprising at least two toothed elements fixed together with said initial configuration and displacement means of said second coupling with respect to said first coupling suitable for taking said second coupling into a connection position with said first coupling once said work condition of said first coupling has been reached in correspondence with a relative displacement between said first and second toothed elements of said first coupling equal to the difference between the sum of the pitch of two or more teeth of said first element of said first coupling and the sum of the pitch of two or more teeth of said second toothed element of said first coupling.

(canceled)