Abstract: The invention relates to a support for the shaft of a winding tube, comprising: a fixed part with a surface and a channeled portion for receiving said shaft; a movable part coupled to said surface, which can move between a first position wherein the channeled portion of the fixed part and a channeled portion of the movable part form a tubular cavity, and a second position defining an opening for accessing the channeled portion of the fixed part; characterised in that the movable part comprises a load end suitable for receiving said shaft as it is pushed against the movable part, moving said movable part into the second position, and positioning the shaft over said opening when the movable part is in said second position; and in that the support comprises elastic means associated with the movable part and the fixed part, which are designed to hold the movable part in said first position.

Abstract: A roller blind having a canvas, a winding shaft to roll up the canvas, a load bar, and two guides, each defining therein a cavity and being provided with a slit through which the canvas is inserted. The canvas includes on each of its side edges a hem, said hem being configured to be housed inside the cavity, wherein the hem forms a tube including therein a retaining strip. The cross sectional area of said tube is greater than the cross sectional area of the retaining strip, and said hem thickness is greater than the width of the slit into which it is inserted.