WINDSHIELD WIPER ARM Russian patent published in 2003 - IPC

FIELD: automotive industry. SUBSTANCE: invention relates to design of windshield wiper arm with elongated sleeve providing coupling of drive shaft with arm holder. Proposed windshield wiper arm has arm holder, sleeve 2 with through conical hole 3 to accommodate cone of drive shaft 4, and stopper 5 made in form of hollow cylinder 6 with bottom part 7 in form of ball segment at one side and open end face 8 at other side covering arm fasteners 9. Lugs 10 with end bosses 11 pointed outside are made on open end face 8 of hollow cylinder 6 of stopper 5, and edge projections 13 are made on inner surface 12 of sleeve 2. Each edge projection is formed by bevel 14 of angle of outer end face 15 of sleeve 2 at one side and through channel 16 at other side. Windshield wiper arm is installed on cone of drive shaft 4 passing through conical hole 3 of sleeve 2, and fasteners 9 are covered by stopper 5 so that lugs 10 of stopper 5 are located on inner surface 12 of sleeve 2 and are fixed in sleeve by means of inner surface 12 sleeve 2 being fixed in sleeve by means of end bosses 11 on its edge projections. EFFECT: improved repairability of windshield wiper arm owing to higher reliability of fixing of stopper at repeated removal and installation. 6 cl, 3 dwg