| 摘要 |
The exchangeable pipette tip assembly ( 3 ) is seated on the pipette body, and has the ejector push ( 6 ) linked to the ejector ( 8 ), while the ejector push button ( 6 ) has the push button toothed bar ( 9 ), and the ejector pusher ( 7 ) has the pusher toothed bar ( 10 ). Inside the pipette body the push button toothed wheel ( 11 ) is disposed, which is engaged with the push button toothed bar ( 9 ), and the pusher toothed wheel ( 12 ), which is engaged with the pusher toothed bar ( 10 ), while both toothed wheels ( 11, 12 ) are interconnected so that they make the same rotational movement around their common axis ( 13 ) of rotation rigidly fixed with respect to the handle ( 1 ).
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