Disclosed is a filler piece mounting assembly for a lifting column. The lifting column includes a first casing and a second casing sliding in the first casing. The filler piece mounting assembly includes a resilient filler piece and a fixed frame for fixing the resilient filler piece. The resilient filler piece is disposed outside an outer wall of the second casing and axially fixed relative to the first casing. The fixed frame is disposed at a front end of the first casing and moves relative to the first casing. A first inclined surface is disposed on an outside of the resilient filler piece. The fixed frame includes an extrusion part for extruding the first inclined surface, and the extrusion part extrudes the first inclined surface to radially deform the resilient filler piece to adjust a clearance between the resilient filler piece and the second casing.

The invention relates to a telescopic column (2) and a method for collapsing and extending the telescopic column (2) for a height adjustable furniture. The telescopic column (2) comprising an outer column (210), an intermediate column (220), an inner column (230) and a fixating member (400) configured to fixate the height position of the intermediate column (220) at a predetermined height position relative the outer column (210) when said telescopic column (2) is in an upper stroke range. Wherein the inner column (230) is adapted to be driven by a driving unit and comprises a first engaging portion for interacting with the fixating member (400) such that the fixating member (400) is disengaged and enables the inner column (230) to move in tandem with the intermediate column (220) relative the outer column (210), when the telescopic column (2) is in a lower stroke range and wherein the fixating member (400) is resiliently loaded.