Abstract: A disc with friction liners for a mechanical clutch. The blades of the disc include, in the region of each zone (4) in which a friction liner is fixed, a slightly raised portion (1), which prevents overflow of the adhesive on to the bending zones (10) that join the central portion (4) to supplementary engagement zones (7).

Abstract: A clutch module (100) includes a cover plate (12), a diaphragm (14), a pressure plate (16), a friction disc (18) and a reaction plate (20) mounted on a support plate (22) and fixed to the cover plate (12), the cover plate (12) includes a set of fastening lugs (66) which extend axially from a peripheral edge (58) of the cover plate (12, 56), and each of which passes axially through a corresponding axially orientated passage (68, 168) formed at the periphery (70) of one of the support plate (22) and the reaction plate (20), so as to extend axially beyond (90) the radial face (72, 172) of the element and so as to be retained axially with respect to the reaction plate (20) or support plate (22).

Abstract: A clutch friction element having elongate elastic elements (24) interposed circumferentially between two guide washers (18) and a shell (20). Recesses (27), which the shell (20) has for the elongate elements (24), are open radially. The guide washers (18) are connected to each other by an arch (45) and, on the internal surface of this arch, a lining (46) of synthetic material is applied radially.

Abstract: A clutch module is of the kind comprising a mechanism (11), a clutch friction wheel (12) and a flywheel (13), the mechanism (11) itself comprising a cover plate (14) by which it is attached on the flywheel (13), a diaphragm (15) which bears on the cover plate (14), and a pressure plate (16) on which the diaphragm (15) bears. According to the invention, in the vicinity of its periphery having the larger diameter, the flywheel (13) carries ventilating fins (58,58') projecting axially from its front face, that is to say from its surface facing towards the pressure plate (16).

Abstract: The clutch mechanism comprises a cover plate (4), a diaphragm (5) bearing on the cover plate (4), assembly (8) applying the diaphragm (5) pivotally to the cover plate (4), and extending through the diaphragm (5) via widened apertures (53), together with at least one pressure plate (3) on which the diaphragm (5) bears by virtue of an annular projecting engagement element (31), which is divided into engagement sectors. The assembly (8) carries a support crown (71) which is coupled in rotation to the assembly (8), and which is extended in its plane and at its outer periphery by drive tongues (70) which extend through the projecting engagement element (31) of the pressure plate (3). The tongues (70) are adapted to be fixed at their free end to the pressure plate (3). In a modification, the drive tongues (70) are fixed with respect to a secondary abutment member (6, 60, 160) carried by the assembly (8).

Abstract: A torsion damper includes a main damper and a predamper, each of which includes a pair of guide rings and a damper plate between the guide rings. The guide rings and damper plate of the main damper, together with the damper plate of the predamper, are provided with access holes in axial register with each other and defining a common axis extending in the axial direction, so as to form an access passage to enable a fastening tool to be inserted through the axial passage. The torsion damper, constituting (with other components) a clutch module, can thus be secured directly to the crankshaft of a motor vehicle. The guide rings of the predamper are disposed radially outwardly of the common axis of the access holes.

Abstract: A clutch module (10) is of the kind comprising a mechanism (11), a clutch friction wheel (12) and a flywheel (13), the mechanism (11) itself comprising a cover plate (14), which, for its attachment to the flywheel (13), comprises, at least locally, engagement member(s) (39) through which it is in engagement with a groove (40) provided for this purpose on the outer peripheral edge (42) of the flywheel (13).The engagement member(s) (39) are snap-fitting member(s), and a crown (50), for example the starter crown, prevents it from moving.Application in particular to clutch modules for motor vehicles.

Abstract: This relates to a clutch module of the kind comprising a mechanism (11), a clutch friction wheel (12), and a flywheel (13), the mechanism itself comprising a cover plate (14), a diaphragm (15) which engages on the cover plate (14), and a pressure plate (16A) on which the diaphragm (15) engages, while the flywheel (13) is constituted by a reaction plate (16) which is similar to the pressure plate (16A), together with a support plate (27) on which the cover plate (14) is fixed. According to the invention, the pressure plate (16A) is thicker at its outer periphery than at its inner periphery. Applicable to clutch modules, especially for motor vehicles.