| 摘要 |
The present document shows a spring suspension device (20) for an agricultural implement, comprising a casing (22, 23), a beam (111') extending through the casing, and at least two spring elements (21a, 21b, 24a, 24b) disposed in a space between the casing and the beam. The casing and the beam are resiliently rotatable relative to each other about a rotational axis (C) extending along a longitudinal direction (L) of the beam. The said at least two spring elements (21a, 21b, 24a, 24b)differ substantially from each other with respect to shape and/or material properties, and first and second side faces (111r1,111r2;111p1, 111p2)of the beam (111' ), which interact with the respective spring elements (21a, 21b, 24a, 24b), differ substantially from each other with respect to the radius of curvature (R), viewed in a plane perpendicular to the longitudinal direction (L). |
