Patent ID: 8459474

Claim:
A rotary fitting for a corner cupboard having a bottom wall and a top wall, the rotary fitting comprising: a lower mounting bracket comprising provisions for being fixed to the bottom wall of the corner cupboard; an upper mounting bracket comprising provisions for being fixed to the top wall of the corner cupboard; a supporting column having a main tube, a lower end, an upper end and a longitudinal axis, and being designed to be rotary mounted to the lower mounting bracket with the lower end and to the upper mounting bracket with the upper end such that the supporting column is rotating about the longitudinal axis; and at least two pie cut-shaped shelves to be supported by the supporting column one above the other and to be fixed for rotation with the main tube about the longitudinal axis; wherein the supporting column includes a lower length adjusting assembly comprising: an axial support element fixed in the main tube and comprising a lower end side including a recess; at least one actuation window cut in the main tube below the axial support element; a screw element having a head fitting in the recess, a cylindrical actuation part accessible through the at least one actuation window with the head in the recess of the axial support element, and a threaded shaft; a nut element arranged on the threaded shaft; and a lower end element fixed to the nut element, movable with regard to the main tube along the longitudinal axis and fixed for rotation with the main tube about the longitudinal axis; and wherein the supporting column further includes an upper length adjusting assembly comprising: a tube element partially arranged within the main tube and extending beyond the main tube to a variable extent; and a clamping element releasably clamping the tube element for fixing the variable extent to which the tube element extends beyond the main tube.