Flexible spring element made of a fibre-plastic composite material

A flexible spring element (1) made of a fiber-plastic composite material (4, 22), comprising

• two cover layers (2, 3) made of a first fiber-plastic composite material (4) on each of two outer sides (9, 10) lying opposite one another,
• wherein fibers (5) within the cover layers (2, 3) are aligned parallel relative to one another at least in bundles and run parallel to the outer side (9, 10) associated with the respective cover layer (2, 3);
• at least one curved portion (13, 14, 25), in which a center plane (8) of the unloaded flexible spring element (1) running with equal spacing between the two cover layers (2, 3) runs in a curved manner in a longitudinal direction (7) of the flexible spring element (1);
• at least one longitudinal portion (15, 16, 17) in which the center plane (8) of the unloaded flexible spring element (1) either has no significant curvature or has a reversal of curvature,
• wherein in an intended deflection of the flexible spring element (1), a cover layer portion (18) arranged directed outwardly in the curved portion (13, 14, 25) is subjected to tensile loading and an opposing cover layer portion (19) directed inwardly in the curved portion (13, 14, 25) is subjected to compressive loading,
• wherein the flexible spring element (1) comprises exclusively the two cover layers (2, 3) in the at least one longitudinal portion (15, 16, 17), and
• wherein the at least one curved portion (13, 14, 25) the flexible spring element (1) comprises a spacing extending element (20, 21) made of a different material than the two cover layers (2, 3) arranged between the two cover layers (2, 3).