Patent ID: 7916019

Claim:
Device for detecting a relative position of a first element having a main mechanical function, with respect to a second element, this device comprising: a first element and a second element, wherein the first element is a sash-frame of a door or window, while the second element is a leaf of the door or window, wherein the first element includes two electrically conductive portions isolated from each other, wherein each of the electrically conductive portions is made of an electrically conductive material and has a mechanical support function in a construction of the sash-frame of the door or window, an electrically conductive movable part, wherein the electrically conductive movable part moves between a first position in contact with both electrically conductive portions of the first element and a second position without contact with at least one of the two electrically conductive portions when the door or window is moved, wherein the two electrically conductive portions and the electrically conductive movable part form an electric circuit section, an opening and closing of which respectively correspond to a first and a second position of the first and second elements with respect to each other, wherein the sash-frame of the door or window includes an electrically conductive outer frame and an electrically conductive inner frame, said outer and inner frames constituting said electrically conductive portions, wherein an electric discontinuity is provided in at least one of the frames, and wherein the electrically conductive movable part is capable of bridging the discontinuity in order to close the electric circuit section, said movable part being either carried by the leaf or arranged in the discontinuity and bringing into contact said electrically conductive portions on both sides of the discontinuity when nearing or separating the leaf.