| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube pump excellent in quietness without causing impact noise capable of guaranteeing a positive pumping action. SOLUTION: A flexible tube 51 has a tube overlapping portion M formed by crossing a tube introduction portion 51a and a tube outlet portion 51b, and is disposed along a tube supporting surface 52 over the entire circumference including the tube overlapping portion M. A roller 43 is composed of a single roller in which a pressurizing position to the flexible tube 51 moves in a rotating direction of a pump wheel 42 by receiving rotational driving force of the wheel 42 in one direction. Therefore, the structure of the tube pump can be simplified, and the roller 43 is constantly in contact with the flexible tube 51. COPYRIGHT: (C)2007,JPO&INPIT |
