| 摘要 |
The invention relates to a device (V) for emptying cavities (6) of blister packs (8) containing powder by using suction. The cavities are emptied by means of a suction tube (3) whose leading end comprises flanks which puncture the plane of the blister pack covering foil (5). One flank is centrally arranged and additional ones are radially situated adjacent thereto. According to the invention, a perforation which is as large as possible is produced so that the cavity (6) can be freely punctured in a fractionation-free manner. To this end, the centrally arranged flank is shaped as a cutting edge (4) by a frame (B) which juts out in front of the flattened fore-part (3') of the suction tube (3) and has cutting flanks (4'', 4'') which form a roof-like shape together. The radially adjacent flanks are shaped as tappet blades (61) which rise above the cutting flanks (4'', 4''). The levels of the blades are situated parallel to the level of the frame (diametral D-D) and are smaller than the diameter of the cavity (6) in a lateral direction. |
