| 摘要 |
The conical tip (6) and the corresponding recess of the funnel (4) are offset towards the vertical longitudinal centre plane of the casing (1). The relative distance (A) of either is approx. 2/5 of the horizontal distance (B) between the vertical plane and the opposite side of tip/funnel. The height (C) of the centering projection (3) and the corresponding maximum opening width of the funnel are less than 1 cm smaller than the horizontal distance (B). The projecting part (D) of the projection is approx. 0.65 of the height (C). The pivot point (12) of the coupling lock is at a distance to the end face (2), in the vertical longitudinal centre plane of the head. |
