Patent ID: 7331745
Filing Date: 2008-02-19
Classification: F16B

Abstract:
1. A nut comprising: an outer body which has an axial port; and inner body, which is movably accepted in the port in an axial direction, has an axial internal thread and is divided into at least two jaws in an axial direction, which jaws bear an internal thread segment of said internal thread on their radially inner surface and which, when the outer body is moved relative to the inner body in the loosening direction of the nut are moved apart; initial means for guiding provided on the outer body; and second means for guiding provided on the jaws which interact with the initial guide means such that the jaws are closed, when the outer body is moved relative to the inner body in the tightening direction of the nut, characterized in that: the second means for guiding interacts with the initial means for guiding such that the jaws when the outer body is moved relative to the inner body in the loosening direction, are pushed radially outwards and, when the outer body is moved in the tightening direction relative to the inner body, are pushed radially inwards.