Patent ID: 7705499
Filing Date: 2010-04-27
Classification: F16D

Abstract:
1. Device ( 10 ) for maintaining the position of a rotatably or displaceably mounted shaft ( 11 ) having a surface ( 44 ), wherein a gripping body ( 26 ) is arranged around the shaft ( 11 ), and said gripping body is impinged upon by a force ( 54 , 56 ) in order to form a friction closure between the gripping body ( 26 ) and the surface ( 44 ) of the shaft ( 11 ), characterized in that the force ( 54 , 56 ) for maintaining the position is provided by an actively actuated control member ( 30 , 62 , 70 , 80 ) that is connected at least to one end ( 38 , 40 , 74 ) of the gripping body ( 26 ), that the at least two ends ( 38 , 40 , 74 ) are impinged upon in such a way by the force ( 54 , 56 ) in order to form the friction closure, that a resulting radial force ( 58 ) is generated, which twists the shaft ( 11 ) against a bearing point ( 16 ) of the shaft ( 11 ), whereby the shaft ( 11 ) is prevented from rotating by means of an additional holding moment, and that the shaft ( 11 ) is deflected radially with respect to the shaft bearing ( 16 ) in order to generate an additional tilting moment of the shaft ( 11 ) with respect to the bearing ( 16 ) via the lever arm ( 60 ).