| 摘要 |
<p>The expulsion device comprises an expulsion member (17) which is attached pivotably to a brewing cylinder (9) arranged so as to be displaceable along a parallel drive spindle (6), and a projection (22) arranged in the lower region on a side piece (2) of a frame (1). A second plunger (8), mounted displaceably in the brewing cylinder (9), is displaceable during a downward movement of the brewing cylinder (9) up to the one upper end of the latter. Ground coffee (40), which has been compressed to form a cake, is conveyed out of the brewing cylinder (9) during this displacement movement. It rests on the embossed end face (42) of the second plunger (8). The expulsion member (17) comprises two pivoting levers (18, 19) which extend along the sides of the brewing cylinder (9). They are mounted in the lower region of the brewing cylinder (9) so as to be pivotable about a pivot axis (23). The ends of the pivoting levers (18, 19) facing away from the pivot axis are connected to an expulsion plate (20). One of the pivoting levers has an L-shaped continuation (21). The latter acts, together with the projection (22), as actuating means for pivoting out the expulsion member (17). Due to the fact that both the one end (41) of the brewing cylinder (9) and the end face (42) of the second plunger (8) are curved and matched to one another in such a way that a sliding surface (50) of the expulsion plate (20) rubs over the surfaces (41, 42) virtually without gaps during the pivoting of the expulsion member (17), the cake can be scraped off without any appreciable residues of ground coffee remaining. <IMAGE></p> |
