| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube pump superior in quietness without generating an impulsive sound, and capable of guaranteeing the sure pump action. SOLUTION: A flexible tube 51 has a tube overlapping part M formed by crossing a tube introducing part 51a and a tube deriving part 51b, and is arranged over the substantially whole periphery along a tube support surface 52 by including this tube overlapping part M. A roller 43 is composed of a single roller of moving a pressurizing position to the flexible tube 51 in the wheel rotating direction, by receiving rotational driving force in one direction of a pump wheel 42. Thus, a constitution of the tube pump can be simplified, and the roller 43 is also put in a state of always contacting with the flexible tube 51. COPYRIGHT: (C)2008,JPO&INPIT |
