Foil for a turbomachine rotating blade, assembly for a turbomachine rotor, and turbomachine

A foil for a rotating blade of a turbomachine, configured to be mounted to a blade root of said rotating blade and comprising:

• an overall U-shaped cross-section formed by two lateral legs connected through a lower surface, the lower surface covering a lower face of the blade root, the lateral legs each covering at least part of two lateral flanks of the blade root;
• and
• blocking means for prohibiting at least some relative movements between the blade root and said foil,
• said blocking means including at least one oblique tab, partially cut out of a lower surface of the foil and forming, with respect to said lower surface of the foil, a tilted plane protrusion able to be inserted into a housing formed in a lower face of the blade root,
• wherein the tilted plane formed by the oblique tab extends, starting from the lower surface of the foil, from an upstream to downstream direction of airflow in the turbomachine, and
• wherein the foil comprises radial tabs cut out at free ends of the lower surface, each of the radial tabs radially folding along either an upstream face or a downstream face of the blade root such that the radial tabs are present on both the upstream and downstream face and form axial stops limiting relative axial movements between the blade root and the foil, said radial tabs having reduced dimensions compared to dimensions of the upstream and downstream faces of the blade root.