Patent ID: 6672763
Filing Date: 2004-01-06
Classification: E01D,F16C

Abstract:
A bridge bearing adapted to slideably connect a substructure and a superstructure to each other, whereby displacement occurs in a linear and/or cardanic manner in at least one of horizontal X and Y directions and tiltable in a Z direction in a hypothetical three-dimensional coordinate system, the bearing is constructed as an X-, Y-, and Z-bearing comprising a base plate (2) that has four projecting shaft holders (3) that are set apart from each other in which two Y-shafts (4) are held, whereby on each of the Y-shafts (4) an additional shaft holder (6) is movably arranged, the additional shaft holders are connected to each other by two X-shafts (5), and a carriage (7) is guided on the X and Y shafts (5, 6) by slide bushings (9, 8) and can be moved linearly in both the X and Y directions, and the carriage (7) has a curved shaft disc (19) thereon that is received in a complementary recess (20) of a cover plate (10) connected to the carriage so that the cover plate (10) can be tilted in the Z-direction by a first pivot bearing (18) formed by the shaft disc containing the cover plate wherein the Y-shafts (4) are affixed in the projecting shaft holders (3) using mounting caps (11), each of which are pressed against the respective projecting shaft holder (3) with a mounting bolt (12) that is located in facing ends of the Y-shafts (4).