The rubber liner (40) has an elongated plate-shaped profile body (41). Multiple through holes (44) are provided in a central cross sectional area of the profile body, which run parallel in longitudinal direction in a horizontal plane. The profile body has a hardness of 60 to 80 shore and the through holes have a rectangular cross section. An independent claim is included for a column rust element with multiple longitudinal and crossbars arranged in one level.
