The present invention relates to a gripping area and a surface structure for a working device. In particular, the invention relates to a surface structure for a working device, which has at least one curved surface, on which there is a first surface normal and a second surface normal, which forms an α angle, wherein the surface structure comprises a base structure, which has a base surface and at least one side surface, wherein the side surface, along with the base surface, forms a β angle, and wherein the surface normal of the base surface of the base structure is parallel to the first surface normal, wherein the surface structure further comprises a variant structure, which comprises a base surface and at least one side surface, wherein a γ angle is formed between the base surface and the side surface, wherein the variant structure is different from the base structure and wherein the surface normal of the base surface of the variant structure is parallel to the second surface normal, and the γ angle is smaller than the β angle by at least the amount of the α angle. The invention also relates to a working device with such a surface.