We claim the ornamental design of a supporting element for a furniture component, as shown and described.
FIG. 1 is a top front perspective view of a supporting element for a furniture component, showing our new design;
FIG. 2 is a bottom rear perspective view of the supporting element for a furniture component as shown in FIG. 1;
FIG. 3 is a left side plan view of the supporting element for a furniture component as shown in FIG. 1;
FIG. 4 is a right side plan view of the supporting element for a furniture component as shown in FIG. 1;
FIG. 5 is a front plan view of the supporting element for a furniture component as shown in FIG. 1;
FIG. 6 is a rear plan view of the supporting element for a furniture component as shown in FIG. 1;
FIG. 7 is a top plan view of the supporting element for a furniture component as shown in FIG. 1; and,
FIG. 8 is a bottom plan view of the supporting element for a furniture component as shown in FIG. 1.
The broken line portions of the drawings are for illustrating certain surface features of the supporting element for a furniture component and form no part of the claimed design.