Patent ID: 7637362
Filing Date: 2009-12-29
Classification: F16D

Abstract:
1. A clutch unit with a housing, the clutch unit being mountable to a flywheel and the clutch unit comprising: a first press plate and a second press plate being received in the clutch unit, the first and second press plates being torque proof relative to the housing, the first and second press plates being axially moveable; a first lever arrangement and a second lever arrangement; the first and second press plates, respectively, forming a first clutch and a second clutch with a clutch disk associated with each of the first and second press plates, the first and second clutches being operable independently from each other through the first and second lever arrangements, respectively; the first and second lever arrangements being pivotably supported at the housing, each of the lever arrangements coupled with the respective first or second press plates for opening and closing the respective first or second clutch; the first clutch facing the flywheel being closed in a non actuated state through a disk spring, the disk spring being compressed between the first press plate and the housing, the disk spring being axially disposed between adjacent first and second press plates, wherein the second clutch, being on the side of the first clutch facing away from the flywheel being open in a non-actuated state and is forced closed when a force is applied on the second lever arrangement; an axially operating pull element connected with the second lever arrangement, the second lever arrangement of the second clutch being coupled with the second press plate via the axially operating pull element; and at least one spring element, the at least one spring element being between an end of the axially operating pull element and the second press plate, the at least one spring element being compressed, having a predetermined preload when the second clutch is open, and the at least one spring element elastically deforming when the second clutch is closed wherein the at least one spring element are compressed coil springs, the coil springs being supported at the second press plate and at the axially operating pull element, wherein the coil springs are disposed on the side of the second press plate facing away from the levers.