| 摘要 |
PURPOSE:To prevent missuction by invariably positioning the tip of a soft suction tube at the center of a test tube being protected with a pipe as outer cylinder. CONSTITUTION:As a piston shaft 24 of a cylinder 9 starts lowering, first, a pipe holder section 7 is brought down with the pressing of a spring 23 to the position of regulating a yarn spool member 25. Under such a condition, the tip of a suction tube 5 exposed which is housed within a pipe 6 is regulated and housed with the pipe 6 disregarding a bent tip of the tube 5 to correct the tube 5 straight. Under such a condition, with the lowering of the shaft 24, the pipe 6 and the tube 5 go down in the center of the test tube 2. With further lowering of the shaft 24, a spring 23 is compressed with a member 25 and holds a tube retaining section 8 and a pipe retaining section 7 so tightly that the tip of the suction tube 5 is exposed to enable the suction of the sample. |
