US2015198207A1PendingUtilityA1

Friction clutch plate with damping springs

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Assignee: CLUTCH IND PTY LTDPriority: Mar 8, 2011Filed: Feb 26, 2015Published: Jul 16, 2015
Est. expiryMar 8, 2031(~4.6 yrs left)· nominal 20-yr term from priority
Inventors:Damian Bibby
F16D 13/686F16D 2300/22F16F 15/13484F16D 13/64F16F 15/12306F16F 15/123
45
PatentIndex Score
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Claims

Abstract

A clutch plate 10 including a plate assembly 11 having an annular periphery to which an assembly of friction material 14, 15 is applied to face in opposite directions. A hub 20 is provided for connection to an output shaft and a hub flange 32 is driveable by the plate assembly 11 to rotate. The hub 20 is driveable to rotate by the hub flange 32 . The hub 20 and the hub flange 32 are angularly displaceable relative to each other within a predetermined range and are coupled together by a tension spring 35, 36, 37 which extends radially relative to the axis of rotation of the hub 20 and which applies a biasing load against relative angular displacement between the hub 20 and the hub flange 32.

Claims

exact text as granted — not AI-modified
1 . A clutch plate including:
 a plate assembly having an annular periphery to which an assembly of friction material is applied to face in each of opposite directions,   a hub for connection to an output shaft,   a hub flange drivable by the plate assembly to rotate,   the hub being drivable to rotate by the hub flange,   the hub and the hub flange being angularly displaceable relative to each other within a predetermined range and being coupled together by a tension spring which extends radially relative to the axis of rotation of the hub and which applies a biasing load against relative angular displacement between the hub and the hub flange.   
     
     
         2 . A clutch plate according to  claim 1 , the hub and the hub flange being coupled together by a pair of radial tension springs disposed diametrically opposite to each other. 
     
     
         3 . A clutch plate according to  claim 1 , the hub and the hub flange being coupled together by three radial tension springs disposed at approximately 120° to each other. 
     
     
         4 . A clutch plate according to  claim 1 , the hub and the hub flange being coupled together by four radial tension springs disposed at approximately 90° to each other. 
     
     
         5 . A clutch plate according to  claim 1 , the radial tension spring being a coil spring. 
     
     
         6 . A clutch plate according to  claim 1 , the radial tension spring having a length dimension of between 20 and 60 mm. 
     
     
         7 . A clutch plate according to  claim 6 , the radial tension spring having a length dimension of about 30 mm. 
     
     
         8 . A clutch plate according to  claim 1 , the radial tension spring having a spring constant in the range of 1 to 10 Kg/mm. 
     
     
         9 . A clutch plate according to  claim 1 , the radial tension spring allowing angular displacement of up to about 60°. 
     
     
         10 . A clutch plate according to  claim 1 , the hub and the hub flange being further coupled together by at least two drive springs, which are positioned equidistantly about the hub, the drive springs being compression springs and being curved and having a substantially constant radius of curvature and being mounted concentric about the hub, the drive springs applying a biasing load against relative angular displacement between the plate assembly and the hub flange. 
     
     
         11 . A clutch plate according to  claim 1 , the hub and the hub flange being further coupled together by two drive springs, which are positioned on opposite sides of the hub. 
     
     
         12 . A clutch plate according to  claim 11 , the hub and the hub flange being further coupled together by two radial tension springs and radially outer ends of the radial tension springs being anchored to the hub flange between facing ends of the drive springs. 
     
     
         13 . A clutch plate according to  claim 1 , the hub and the hub flange being further coupled together by three drive springs, which are positioned at 120° to each other. 
     
     
         14 . A clutch plate according to  claim 13 , the hub and the hub flange being further coupled together by three radial tension springs and radially outer ends of the radial tension springs being anchored to the hub flange between facing ends of the drive springs. 
     
     
         15 . A clutch plate according to  claim 1 , the hub and the hub flange being further coupled together by four drive springs, which are positioned at 90° to each other. 
     
     
         16 . A clutch plate according to  claim 1 , the hub and the hub flange being further coupled together by at least two drive springs, which are coil springs.

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