| 摘要 |
<p>The device has a housing (1), a sleeve-needle combination (6) that is guided in the housing in axially displaceable manner. The sleeve-needle combination is displaced in a repeated axial movement with the help of a drive (5). The sleeve and the needle are coupled with each other in permanent manner. The sleeve-needle combination has one or multiple inlet openings for the liquid present in a color chamber. The capillary action works through the inlet openings only to the sleeve end with a needle tip (8). The permanent connection between the sleeve and the needle takes place through a ferrule.</p> |
