초록 ▼

The invention relates to a device for detecting the angle of rotation between two components (1, 2), which are rotatably interconnected via a pin (3). Said device comprises an angle sensor (5), which is directly or indirectly connected to one of the two components (1 or 2) in a rotationally fixed ma

The invention relates to a device for detecting the angle of rotation between two components (1, 2), which are rotatably interconnected via a pin (3). Said device comprises an angle sensor (5), which is directly or indirectly connected to one of the two components (1 or 2) in a rotationally fixed manner and whose sensor shaft (8) is rotatably fixed to the other component (2 or 1) via a lever-shaped driver (9), whereby the angle of rotation is detected by the angle sensor (5) from the twisting of the sensor shaft (8). The aim of the invention is to improve the device of the aforementioned type such that the angle of rotation between two components can be detected in a significantly more precise manner, and such that the device can be used in a more reliable and practical manner. To this end, the invention provides that the sensor shaft (8) is connected to the driver (9) via at least one torsion-proof flexible element (11, 12).

대표청구항 ▼

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

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. 2. The device of claim 1 wherein said angular sensor includes a casing fixed to a bolt retaining plate connected to said bolt.3. The device of claim 2 wherein the casing of the angular sensor is surrounded by a protective cover which is fixed to the casing of the angular sensor for completely enclosing said casing.4. The device of claim 1 wherein a second torsionally stiff but flexibly elastic element is positioned between said catch and said second end of said connecting shaft.5. The device of claim 4 wherein said first torsionally stiff but flexibly elastic element is formed as a metallic bellows.6. The device of claim 5 wherein the catch is fixed at such a distance from the bolt that, in the event of the lying of the catch on a front side of the bolt, axial motion transmitted by the connecting shaft to the bellows is permitted.7. The device of claim 6 wherein a gasket is positioned between the catch and the front side of the bolt for sealing the coaxial longitudinal passage in said bolt.8. The device of claim 4 wherein said second torsionally stiff but flexibly elastic element is formed as a sleeve, which is firmly joined both with the catch and the connecting shaft.9. Apparatus for recording an angle of relative rotation between a first component and a second component connected by a bolt for relative rotation about a rotational axis through the bolt, the bolt allowing some relative radial movement of the components as a result of radial play between the bolt and at least one of the components, the apparatus comprising:a sensor device including a sensor shaft rotatable about a rotary shaft axis therethrough, the sensor device being fixedly mounted on the first component for radial movement and rotation therewith about the rotational axis such that the sensor shaft is disposed at least substantially coaxial to the rotational axis in or adjacent to a first axial end of a passage extending at least generally axially through the bolt; a catch fixedly mounted on the second component at a location spaced radially outwardly from the rotational axis for radial movement and rotation with the second component generally about the rotational axis relative to the bolt and the first component, the catch extending radially inwardly to a location in or adjacent to a second axial end of the passage through the bolt opposite the first axial end of the passage; and a connecting shaft having a radial extent less than a radial extent of the passage extending through the passage, the connecting shaft connecting the catch and the sensor shaft for joint rotation with the second component relative to the first component, including at least one torsionally stiff but flexibly elastic element disposed and being sufficiently flexible for allowing some relative radial movements of the catch and the sensor shaft corresponding to any relative radial movement of the components as a result of the radial play between the bolt and the at least one of the components, such that if the first and second components are relatively rotated by an angle of rotation and simultaneously relatively radially moved, the at least one torsionally stiff but flexibly elastic element will be correspondingly flexed and the sensor shaft will be rotated relative to the sensor device by an angle of rotation equal to the angle of relative rotation of the components. 10. The apparatus of claim 9, wherein the first component includes spaced apart elements and the second component is located in the space between the elements, and wherein the catch has a lever shape which extends axially away from the second component beside one of the elements of the first component to a location radially outwardly of and axially beyond the one element of the first component, and from the location axially beyond the one element of the first component radially inwardly to the location in or adjacent to the second axial end of the passage through the bolt.11. The apparatus of claim 9, wherein the at least one torsionally stiff but flexibly elastic element includes a torsionally stiff but flexibly elastic element connecting the connecting shaft to the sensor shaft.12. The apparatus of claim 11, wherein the at least one torsionally stiff but flexibly elastic element comprises a second torsionally stiff but flexibly elastic element connecting the connecting shaft to the catch.13. The apparatus of claim 12, wherein the second torsionally stiff but flexibly elastic element comprises a sleeve connected between the connecting shaft and the catch.14. The apparatus of claim 9, wherein the at least one torsionally stiff but flexibly elastic element comprises a metallic bellows connected between the sensor shaft and the connecting shaft.