Patent ID: 7913595
Filing Date: 2011-03-29
Classification: B23Q,Y10T

Abstract:
1. Clutch device for tool holders or for tool chucking devices or workpiece chucking devices for the releasable form-fitting engagement of a drive shaft ( 19 ) of an associate drive source ( 17 ) with a spindle ( 16 ) of the tool holder ( 12 ) or of the chucking device, wherein the drive shaft ( 19 ) and the spindle ( 16 ) support separate dog elements ( 24 , 26 a , 40 ), and wherein a clutch element ( 27 ) compensating for an alignment error between the drive shaft and the spindle is arranged between the two dog elements, whereby the movement of said clutch element is restricted with respect to the drive shaft and the spindle, and wherein said clutch element is provided with appropriate dog elements ( 24 , 24 a ) and is coupled in a form-fitting manner with the dog elements of the drive shaft and of the spindle, said the dog elements comprising a keyway ( 24 ) extending transversely to the drive shaft ( 19 ) or to the spindle ( 16 ), or a strip-shaped dog ( 26 ; 26 a ) and said clutch element being held on one of the drive shaft or spindle by locking means ( 37 , 38 ).