| 摘要 |
The bottom wall (6) has a slot (8) which extends from the first pair first side wall and terminates at its other side wall (3). The first pair first side wall terminates at a distance from the bottom wall (6) to produce an opening in the side wall. A slot extends from the opening and terminates in the top wall (7). The second pair of side walls (4,5) each has a slot which is parallel with the first pair side walls and have an inner housing for accommodating the needle (10) and is displaceably arranged in the outer housing. The inner housing has a pair of opposite side walls (16), a bottom wall (18), and/or a further side wall (20) and a top wall (19). The bottom wall (18) has a slot (22) which extends from an opening into the inner housing at the outer housing side wall, terminating at its opposite edge part. |
