Back to results
US 4,821,860 AGranted
Friction facing material and carrier assembly
AssigneeAutomotive Products plc
InventorsPeter F. Crawford, Ian C. Maycock, Graham R. Bicknell
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAutomotive Products plc
InventorsPeter F. Crawford, Ian C. Maycock, Graham R. Bicknell
Estimating the term…
A friction material and carrier assembly (which is to be used in the construction of a driven plate of a dry friction clutch) comprises a circular carrier plate having at its periphery radially extending spokes or paddles which are elastically pliable axially of the carrier plate. Two annular friction facings which are resilient and capable of flexing are bonded by respective layers of silicone rubber to opposite sides of the paddles. Each rubber layer can be formed by a plurality of strips or beads of rubber. The paddles arrangement is capable of sinuous flexing circumferentially of the assembly, and when the assembly is in a driven plate in a clutch applying the clamp load specified for the clutch, the overall axial thickness of the combination formed by the paddles and rubber layers and the friction facings is reduced by between 0.05 mm and 2.00 mm.
A friction facing material and carrier assembly for a dry clutch driven plate, wherein said carrier assembly is sinuously flexible in a circumferential direction under a specified axial clamp load of the clutch, said friction facing material being disposed in an annular array around an being adhesively bonded to and flexible with said carrier, and said friction facing material and/or said bonding material and/or said carrier are/is so resiliently deformable that, under the specified axial clamp load, the overall thickness of said carrier and friction facing material between the clamping surfaces is reduced by between 0.05 mm and 2.00 mm inclusive.
Dependencies are inferred from the claim text.