Patent ID: 6959497
Filing Date: 2005-11-01
Classification: G01D

Abstract:
1. A device for the recording of an angle of rotation between a first component and a second component in which he first component is connected to a bolt so that it cannot turn, said second component being arranged around the outer circumference of said bolt and extending over a part of a length of said first component so that said second component is capable of turning about said bolt relative to said first component, said device including an angular sensor for recording the angle of rotation, said angular sensor being fixed to one of said first and second components and including a sensor shaft for recording the angle of rotation about an axis of rotation of the sensor shaft and which is connected with the other of said first and second components by at least one torsionally stiff but flexibly elastic element, said first and second components being capable of limited relative radial movement during said turning of said second component about said bolt relative to said first component as a result of radial play between said bolt and at least one of said components, the improvement comprising: said angular sensor being connected positionally fixed with respect to said first component so that said angular sensor cannot turn; and a connecting shaft positioned within a coaxial longitudinal passage formed in said bolt and operably coupled at one end thereof to said sensor shaft, said connecting shaft having a diameter that is smaller than said coaxial longitudinal passage, said torsionally stiff but flexibly elastic element being imposed between said connecting shaft and said sensor shaft, said connecting shaft having a second end including a catch which is fixed to the second component at a location radially outwardly of and adjacent to an end of the bolt opposite the angular sensor so as to turn with said second component about said bolt relative to said first component and so as to move radilly with said second component relative to said bolt and said first component, and such that if any of said limited relative radial movement of said first and second components occurs as said second component is turned by an angle of rotation relative to said first component, said torsionally stiff but flexibly elastic element will flex sufficiently such hat said sensor shaft will be turned relative to said angular sensor by an angle of rotation equal to said angle of rotation by which said second component is turned relative to said first component.