Abstract: A spring for use in conjunction with a vehicle, in particular a leaf spring (1), preferably a parabolic spring, has a single-part spring leaf (12) made of steel, in particular spring steel, having a central region (2) and two adjoining edge regions (4a, 4b), wherein the edge regions (4a, 4b) each have an end region (5a, 5b), the end regions (5a, 5b) can each be connected to a chassis in a stationary manner via a rolled eye (11), and the total length of the spring when installed on the vehicle is substantially unchangeable in all load states. In the unloaded state, the spring leaf (12) has two bending sections (13, 14), which each have a curvature with a curvature direction, wherein the curvature directions of the two bending sections (13, 14) are opposed, and the two bending sections (13, 14) merge into each other in the region of a turning point (15).

Abstract: A spring leaf for a leaf spring (1) has an upper side (13), a lower side (14), two lateral sections extending between the upper side (13) and the lower side (14), a longitudinal axis (15), a section plane (III) extending perpendicularly to the upper side (13) and lower side (14) and through the longitudinal axis (15), two end sections (3a, 3b), and a middle section (4) extending between the end sections (3a, 3b). The middle section (4) has a clamping region (5). A main tension region (6a, 6b) is provided between at least one of the end sections (3a, 3b) and the clamping region (5), the thickness (S) of which decreases in the direction from the clamping region (5) to the end section (3a, 3b), in particular decreases parabolically.

Abstract: In a method for producing a spring leaf (2) for a leaf spring, in particular a parabolic spring or suspension spring, wherein the spring leaf (2) comprises two end regions, a central region, a top side which is subjected to tensile stress in the operative state, and a bottom side (1) which is subjected to pressure in the operative state, at least one hole (3) is introduced into the bottom side (1). The bottom side (1) is peened locally in the region around the hole (3).

Abstract: A spring for use in conjunction with a vehicle, in particular a leaf spring (1), preferably a parabolic spring, has a single-part spring leaf (12) made of steel, in particular spring steel, having a central region (2) and two adjoining edge regions (4a, 4b), wherein the edge regions (4a, 4b) each have an end region (5a, 5b), the end regions (5a, 5b) can each be connected to a chassis in a stationary manner via a rolled eye (11), and the total length of the spring when installed on the vehicle is substantially unchangeable in all load states. In the unloaded state, the spring leaf (12) has two bending sections (13, 14), which each have a curvature with a curvature direction, wherein the curvature directions of the two bending sections (13, 14) are opposed, and the two bending sections (13, 14) merge into each other in the region of a turning point (15).

Abstract: In a method for producing a spring leaf (2) for a leaf spring, in particular a parabolic spring or suspension spring, wherein the spring leaf (2) comprises two end regions, a central region, a top side which is subjected to tensile stress in the operative state, and a bottom side (1) which is subjected to pressure in the operative state, at least one hole (3) is introduced into the bottom side (1). The bottom side (1) is peened locally in the region around the hole (3).

Abstract: A spring leaf for a leaf spring (1) has an upper side (13), a lower side (14), two lateral sections extending between the upper side (13) and the lower side (14), a longitudinal axis (15), a section plane (III) extending perpendicularly to the upper side (13) and lower side (14) and through the longitudinal axis (15), two end sections (3a, 3b), and a middle section (4) extending between the end sections (3a, 3b). The middle section (4) has a clamping region (5). A main tension region (6a, 6b) is provided between at least one of the end sections (3a, 3b) and the clamping region (5), the thickness (S) of which decreases in the direction from the clamping region (5) to the end section (3a, 3b), in particular decreases parabolically.