Patent ID: 7735617
Filing Date: 2010-06-15
Classification: F16D

Abstract:
1. A lever system for actuating a clutch in the power train of a motor vehicle or for actuating a disc brake, comprising: a lever ( 7 ) with a first side ( 7 . 1 ) rotatably supported on a pivot ( 8 ) and with a side ( 7 . 2 ) in functional connection with a pressing means ( 6 ), wherein said lever ( 7 ) rests on a movable fulcrum ( 12 ) provided by a moveable support unit ( 10 ) that is displaceable in radial direction relative to the rotation axis of the clutch or the disc brake and which is displaceable by means of a motor-driven ( 15 ) spindle ( 14 ), wherein said moveable support unit ( 10 ) rests on a raceway ( 11 ) and comprises a first roller set ( 20 . 1 ) and a second roller set ( 20 . 2 ), wherein each of the first and second roller sets ( 20 . 1 , 20 . 2 ) includes at least first, second, and third rollers ( 21 , 22 , 22 . 1 , 22 . 2 ), wherein said first and second rollers ( 22 . 1 , 22 . 2 ) include approximately equal first diameters and wherein said third roller ( 21 ) includes a second diameter that is deviant from said first diameter, the lever system further comprising first and second idler rollers ( 25 . 1 , 25 . 2 ), first and second idler roller axles ( 26 . 1 , 26 . 2 ), and mount hub ( 18 ), wherein said first and second roller sets ( 20 . 1 , 20 . 2 ) respectively rest loosely on a corresponding idler roller from said first and second idler rollers ( 25 . 1 , 25 . 2 ), which is disposed on an idler roller axle from said first and second idler roller axles ( 26 . 1 , 26 . 2 ) which is connected with said mount hub ( 18 ).