ACTUATING DEVICE OF THE ARTICULATED LEVER OR CAM TYPE FOR THE PRECISE POSITIONING OF A PIVOTABLE ARM

摘要

An articulated lever or cam type actuating device (10) is disclosed comprising a body (15) coupled to a sliding control piston (11), said piston actuating means (12a, 12b) along a piston axis (A) In order to induce a pivotal movement of the pivotable arm 14 about a first axis of rotation B perpendicular to the axis of the piston A during the sliding motion of coupled or connected to the piston actuating means 12a , 12b and operatively coupled to the pivotable arm 14 through the interposition of an articulating lever or cam mechanism 13 , the pivotable arm 14 being at an angle of non-actuation A first part movable between a non-operative angular position and an operative angular position, the piston actuating means 12a , 12b being displaceable relative to each other along the piston axis A (12a) and a second part (12b), and means for adjusting the length of the piston actuating means (12a, 12b) (20), comprising a second axis of rotation (C) transverse to the axis of the piston (A) between the first part 12a and the second part 12b of the piston actuating means 12a, 12b along the piston axis A In order to change the length of the piston actuating means 12a, 12b by converting it into a relative displacement of ) is included.