| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of a tube pump, and to miniaturize the tube pump. SOLUTION: This tube pump 28 is provided with a casing 35, a discharge tube 36 and a presser device 37. In the discharge tube 36, each of flexible tubes 46 and 47 are arranged in the vertical direction, and an end 50 thereof on the upstream side of a part 49 on the way of the flow passage and an end 51 thereof on the downstream side thereof are bound together to form a bundle part 52 with a fastening part 53. The discharge tube 36 is housed in the casing 35 to draw a letterΩalong the cylindrical inner wall 35a of the casing 35. The presser device 37 is provided with a rotary member 56, a torsion spring, a support member 58, an abutting member 59 and a lock, and positioned inside of the part 49 on the way of the flow passage. The abutting member 59 is pushed to the part 49 on the way of the flow passage by the energizing force of the torsion spring during the normal rotation of the rotary member 56. As a result, when normally rotating, the part 49 on the way of the flow passage is evenly crushed, including the bundle part 52, and pressure is continuously stored in the discharge tube 36. COPYRIGHT: (C)2004,JPO |
