US 4,537,296 AGranted

Clutch driven plate assembly

AssigneeAlma Piston Company

InventorsThaddeus Lech, Jr., Richard T. Popchock

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Abstract

The clutch driven plate assembly includes a hub assembly connectable to a driven shaft and interconnected driven and spring retainer plates rotatably mounted upon the hub assembly. The hub assembly has an inner hub and an outer hub having a driven flange between the plates. A plurality of circumferentially spaced aligned windows are provided in the plates and flange, with at least one compression spring retained within each set of aligned windows thereby defining a yieldable connection between the plates and flange. The inner hub has a cylindrical body provided with a pair of outwardly directed converging hub flanges and the outer hub has a central opening of the same shape as the hub flanges and oversized with respect thereto and loosely receiving the inner hub flanges for limited relative rotation. A back plate is spaced from the inner and outer hubs and secured to the flange, and a resilient spacer is interposed between and bears against the inner and outer hubs and back plate. Axial springs are interposed in compression between one side of the hub flanges and back plate normally biasing the hub flanges away from the back plate. A resilient washer is mounted upon the inner hub, bears against the other side of the inner hub flanges and is retained in compression between the inner hub and the driven plate. The plate springs dampen relative rotary motions between the plates and driven flange and the axial springs, spacer and washer further dampen relative rotary motions between the inner and outer hubs.

Claims27

Dependent claims

A clutch driven plate assembly comprising a hub assembly connectable to a driven shaft;

a driven plate having a peripheral friction facing rotatably mounted upon said hub assembly;
a spring retainer plate rotatably mounted upon said hub assembly and spaced from and secured to said driven plate and rotatable therewith;
said hub assembly including an inner hub and an outer hub having a driven flange;
said inner hub having a splined bore and a pair of outwardly directed converging radial flanges;
said outer hub flange being interposed between said driven plate and said spring retainer plate and having a central opening of the same shape and oversized with respect to and loosely receiving said inner hub flanges for limited rotation thereof relative to said inner hub flanges;
a centrally apertured back plate upon the interior of and bearing against said spring retainer plate and spaced from said inner and outer hubs and secured to said outer hub flange;
a resilient apertured disc spacer interposed between and bearing against said inner and outer hubs and back plate and bearing against said inner hub flanges and outer hub flange on one side of said inner hub;
axial spring means interposed in compression between said inner hub flanges and said back plate normally biasing said inner hub flanges away from said back plate;
a resilient washer mounted upon said inner hub bearing against the other side of said inner hub flanges and retained between said inner hub and said driven plate;
there being a plurality of circumferentially spaced axially aligned windows in said plates and outer hub flange;
and at least one compression spring nested and retained within each set of laterally aligned windows defining a yieldable connection between said driven plate and outer hub flange;
said springs dampening relative rotary motions between said plates and said outer hub flange;
said spring means, spacer disc and washer further dampening relative rotary motions betwen said inner and outer hubs.

10 more elements

In a clutch driven plate assembly having a hub assembly connectable to a driven shaft, a driven plate having a peripheral friction facing rotatably mounted upon said hub assembly, a spring retainer plate rotatably mounted upon said hub assembly and spaced from and secured to said driven plate and rotatable therewith, said hub assembly including an inner hub and an outer hub having a driven flange, there being a plurality of circumferentially spaced axially aligned windows in said plates and outer hub flange, and at least one compression spring nested and retained within each set of laterally aligned windows defining a yieldable connection between said driven plate and outer hub flange, the improvement comprising said inner hub having a splined bore and a pair of outwardly directed converging radial flanges;

said outer hub flange being interposed between said driven plate and said spring retainer plate and having a central opening of the same shape and oversized with respect to and loosely receiving said inner hub flanges for limited rotation thereof relative to said inner hub flanges;
said hub assembly including a centrally apertured back plate upon the interior of and bearing against said spring retainer plate and spaced from said inner and outer hubs and secured to said outer hub flange;
a resilient apertured disc spacer interposed between and bearing against said inner and outer hubs and back plate and bearing against said inner hub flanges and outer hub flange on one side of said inner hub;
axial spring means interposed in compression between said inner hub flanges and said back plate normally biasing said inner hub flanges away from said back plate;
a resilient washer mounted upon said inner hub bearing against the other side of said inner hub flanges and retained between said inner hub and said driven plate;
said springs dampening relative rotary motions between said plates and said outer hub flange;
and
said spring means, disc spacer and resilient washer further dampening relative rotary motions between said inner and outer hubs.

5 more elements

Dependencies are inferred from the claim text.