Arrangement of shaft coupling element for windscreen wiper

A universal shaft coupling element for a windscreen wiper which attaches the wiper to a fastening device of a vehicle, said shaft coupling element comprising:

• a main body having
• a longitudinal top surface,
• first and second lateral sides extending away from said top surface, each lateral side having a central lower cutout, and said first lateral side also having an upper extent extending above said top surface,
• a central portion extending away from said top surface and located between said central cutouts of said lateral sides, and
• a first transversal bore in said central portion opening transversally away from said top surface so that a central pin of the wiper is receivable therein;
• a first coupling arrangement on said main body for coupling said main body to a lock pin of a fastening device, said first coupling arrangement, including
• second and third transversal bores in said central portion of said main body, said second and third bores (a) being located on opposite longitudinal sides of said first bore, (b) opening transversally away from said top surface, and (c) having respective different sizes in order to transversally accommodate respective different sized lock pins therein, and
• a jag on each longitudinal side of said first bore such that opening of the first, second and third transverse bores is facilitated;
• a second coupling arrangement on said main body for coupling said main body to a hook end of a fastening device, said second coupling arrangement including
• first and second flexible adjustment pawls located longitudinally in series along an upper part of the top surface which together with said upper extent of said first lateral side receive therebetween and engage respective sides of different sized hook ends as the hook end receives said central portion therein, and
• a moving part located at end of said main body between said first and second lateral sides which movingly engages an inside hooking portion of the hook end as the central portion is received in the hook end.