TUBE PUMP, LIQUID INJECTION DEVICE, AND TUBE PUMP CONTROL METHOD

PROBLEM TO BE SOLVED: To provide a tube pump capable of restricting fluctuation in starting position of a moving abutment part without raising parts cost. SOLUTION: The tube pump 100 has a tube part 110 for sucking liquid, the moving abutment part 120 movably arranged along the tube part, a motor part 150 for generating rotating torque to move the moving abutment part along the tube part, and a rotating torque control part 151 for changing rotating torque of the motor part. The tube part has parts having a different rotating load when the moving abutment part moves along the tube part, and the parts having a different rotating load comprise parts having a small rotating load and parts having a large rotating load. The rotating torque control part is structured so that the rotating torque of the motor part can be set at stopping torque for rotating the moving abutment part in the part having a small rotating load and for stopping the moving abutment part in the parts having a large rotating load. COPYRIGHT: (C)2006,JPO&NCIPI