Sanitary single-lever mixer

A sanitary single-lever mixer comprising,

• a) a housing which has a receiving compartment which is open towards the top;
• b) a control apparatus which is disposed in said receiving compartment and has at least one movable control element which determines the flow of water, and an adjusting lever which extends upwards and can be tilted about two axes which are perpendicular to one another;
• c) a handle which is connected, at one end, to the adjusting lever;
• d) a closing part which is associated with the housing, covers the upper aperture in the receiving compartment and has a central through-aperture through which the adjusting shaft or the handle extends, and which closing part possesses an upper side which, viewed from above, is convex and spherical;
• and,
• e) a covering part which is associated with the handle and has an underside which is essentially complementary to the upper side of the closing part and slides on said upper side when the handle moves;
• wherein
• f) the covering part associated with the handle is made up of an outer, visible part which is provided with a visible surface, and a sliding part which is connected to said visible part and consists of a material having good sliding properties, and on which the spherical underside of said covering part is constructed.