| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipette device that can be operated easily. SOLUTION: The pipette device has an adjuster for a volume of metering, wherein a feed screw 16 has a first male screw 23.1 and at least another male screw 23.2 with a flight configuration differing from that of the first male screw, a feed screw nut 17 has an at least one related female screw 24 or the feed screw nut has a first female screw 24.1 and at least another female screw 24.2 having a flight configuration differing from that of the first female screw, the feed screw has at least another related male screw 23, and in the case of the further male screw of the feed screw or the further female screw of the feed screw nut, the feed screw nut at least partially has a gap d between the screw nut and the feed screw, at position h of the outside diameter and/or the inside diameter of the male screw of the feed screw and in the radial direction R with respect to the axis A of the feed screw. COPYRIGHT: (C)2010,JPO&INPIT |
