Patent ID: 7742363

Claim:
A mechanical digital display having at least one digit consisting of at least seven segments ( 1 ) for displaying alphanumeric characters, each segment ( 1 ) being a body in the form of a bar ( 1 ) which can pivot on its longitudinal shaft ( 3 ), each of the said bars ( 1 ) having at least two areas resembling a first and a second strip ( 1 ′, 1 ″) having different appearances, the said strips ( 1 ′, 1 ″) being arranged along the length of the bar ( 1 ) in such a way that the orientation of the bar ( 1 ) by a rotation about its longitudinal shaft ( 3 ) enables either the first or the second strip ( 1 ′, 1 ″) to be made visible, the display of an alphanumeric character being achieved as a result of the dissimilarity of appearance between the first and the second strip ( 1 , 1 ″) of the set of bars ( 1 ), the pivoting of one or more bars ( 1 ) to replace the first strip ( 1 ′) with the second strip ( 1 ″) or vice versa generating the display of different alphanumeric characters, characterized in that at least one pinion ( 2 ), fixed to the bar ( 1 ), is positioned around each longitudinal shaft ( 3 ) adjacent to at least one of the ends of said bar ( 1 ), the bars ( 1 ) being pivoted by means of cams ( 4 ) interacting directly or indirectly with each pinion ( 2 ), characterized in that the mechanical digital display comprises an operating device designed to transmit a rotary movement to said cams ( 4 ) by pulses so that the pivoting of the bars ( 1 ) takes place instantaneously or virtually instantaneously.