RIGID AXLE FOR A MOTOR VEHICLE COMPRISING A SPRING SEAT BODY

The invention relates to a spring seat body (13) for connection with a rigid axle (1) of a motor vehicle, having an upper spring seat surface (13.1), a lower seating surface (13.2), lateral edge surfaces (13.3, 13.4, 13.5, 13.6) which lie between the spring seat surface and the seating surface, and holding means for holding clamping means for fastening at least one spring to the spring seat body, wherein the lateral edge surfaces comprise a first edge surface (13.3) and a second edge surface (13.4) which face away from each other and, in the fastened state of the spring seat body on the rigid axle, extend transversely to the rigid axle, wherein the first edge surface (13.3) in the fastened state of the spring seat body on the rigid axle lies closer to an end of the rigid axle carrying a vehicle wheel than the second edge surface (13.4), and wherein the first edge surface has an edge profile (13.31) which, in the fastened state of the spring seat body on the rigid axle, lies in overlap with the rigid axle. In order for the spring seat body (13) to offer improved robustness, in particular increased fatigue strength in its connection with a generic rigid axle and thereby enable a reduction in the total weight of the rigid axle, the invention provides that said edge profile (13.31), viewed from above, is formed at least partially as an outwardly protruding, preferably convex edge profile, whose tip or apex (13.32) lies in a region of the first edge surface (13.3) which extends along a central length region (L13.31) running transversely to the rigid axle of the upper spring seat surface (13.1), wherein said central length region is less than one-third, preferably less than one-quarter, particularly preferably less than one-fifth of the length (L13.1) of the upper spring seat surface. In particular, the invention relates to a rigid axle for a motor vehicle, in particular a commercial vehicle, with such a spring seat body.