Spring for a vehicle

A spring, in particular a flat spring, for use in connection with a vehicle, with a middle region which has a curve with a first curve direction, as well as two edge regions, the middle region also having a base region which essentially runs straight and which provides a section for receiving an axle,

• the spring having a range of motion between an unladen state and a state of maximum load,
• wherein in an unladen state, the edge regions each have a curve with a second curve direction and vertices, with the second curve direction being opposed to the first curve direction, in that the flat spring has a vertex axis running through the vertices of the curves of the edge regions, and in that end regions of the edge regions are tilted away from the vertex axis toward the side of the vertex axis on which the middle region lies,
• wherein the spring is a one-piece flat spring and
• wherein during operation, the vertex axis lies above the middle region in an assembled state in that a force vector applied to the middle region is oriented toward the vertex axis and force vectors applied to the end regions point in the opposite direction, and in that the end regions each display a device for connecting the flat spring with a chassis of a vehicle, said device of each end region comprises a rolled or shaped eye, or is flat, and
• wherein under increasing load applied to the spring in the unladen state until achieving maximum load, the end regions tilt further away from the vertex axis and the middle region deflects over the range of motion of the spring in a direction towards the vertex axis, the middle region being furthest from the vertex axis in the unladen state and closest to the vertex axis in the state of maximum load.