Elastic coupling device between two substantially aligned shafts

An elastic coupling device between a driving shaft (100) and a driven shaft (200) that are substantially aligned, including a drive plate (1) for rotational coupling to the driving shaft (100), a hub (17) for rotational coupling to the driven shaft (200) and, between the hub (17) and the drive plate (1), two guide washers (1 through 3,9) disposed on respective opposite sides of a flange (10) with circumferential action spring means (11, 110) operating between the flange (10) and the guide washers (1 though 3-9), characterized in that the drive plate (1) is constrained to rotate with one of the guide washers (1,2), constituting a first guide washer, while the flange (10) is fastened, possibly after taking up circumferential play, to the hub (17) and in that the hub (17) is directed axially towards the first guide washer (1), in that the first guide washer (1,2) carries the other guide washer (2-9), constituting a second guide washer, fixed to an outside periphery of said first guide washer, and in that said device is thicker at the outside periphery than at an inside periphery of said first guide washer, and wherein said first guide washer is rotationally coupled to the drive plate by elastic tongues (50) allowing axial displacement of the first guide washer, and wherein the first guide washer surrounds the drive plate.