Patent ID: 6227776
Filing Date: 2001-05-08
Classification: B23Q,F16H,Y10T

Abstract:
A machine tool in which a work table for accepting a workpiece to be machined is fed in a feeding direction relative to a fixed member, characterized in that the work table is guided by a linear linkage mechanism, the linear linkage mechanism comprising a first arm linked to the fixed member at its one end so as to swivel about a first axis, a second arm having the same length as the first arm, the second arm being linked to the first arm at its one end so as to swivel about a second axis and also linked to the work table at its other end so as to swivel about a third axis, a first gear secured on the fixed member at the one end of the first arm and being coaxial with the first axis, a second gear secured on the second arm at the other end thereof and being coaxial with the second axis, a chain wound between the first and the second gears, the first gear having a diameter twice that of the second gear.