| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive tube pump for surely performing suction operation by stably pressing tubes even if there exists a variation in the thickness in the tubes in the tube pump for pressing a plurality of tubes by using one roller. SOLUTION: This tube pump is provided with the plurality of flexible tubes, a base for holding the tubes for a prescribed distance, and the pressurizing roller for deforming the tubes held on the base so that a void does not remain in a pressing part by pressing the tubes to the base at suction or discharge. The tube pump performs the suction or the discharge by moving the pressurizing roller along the tubes while deforming the tubes by the pressurizing member at suction or discharge. The pressurizing roller or the base moves in the rotary shaft thrust direction of the pressurizing roller according to a thickness difference in the plurality of tubes, and an interval between the pressurizing roller and the base changes to uniformly press the plurality of tubes. COPYRIGHT: (C)2004,JPO |
