Fastening device for a windscreen wiping device

A windscreen wiping device (100) for a vehicle with a fastening element (50), comprising a wiper blade, having

• an elongated upper part (10) which is configured to be at least partially flexible,
• an elongated lower part (12) which is configured to be at least partially flexible,
• a plurality of connecting elements (18) for connecting the upper part (10) and the lower part (12), wherein the connecting elements (18) are spaced apart from one another along a longitudinal extent (8) of the wiper blade (2), and wherein the connecting elements (18) are configured to allow a movement of the upper part (10) and the lower part relative to one another with a motion component along the longitudinal extent (8) of the wiper blade (2), wherein the connecting elements (18) substantially have a thickness which is greater than or equal to 0.4 mm, and
• a fastening device comprising a fastening part (20) on a wiper blade side, wherein the fastening part (20) on the wiper blade side is configured such that by means of a rotation of the fastening part (20) on the wiper blade side relative to the fastening element (50) an engagement is able to be formed in order to fix a position of the fastening part (20) on the wiper blade side relative to the fastening element (50)
• wherein the fastening part (20) includes a first, elastic pin (21) extending perpendicular to the longitudinal direction, and a second pin (22) spaced from the first pin (21) and extending perpendicular to the longitudinal direction, wherein the fastening element (50) includes a first, arcuate-shaped hole (31) that receives the first pin (21) during assembly of the fastening part (20) onto the fastening element (50), and wherein the fastening element (50) includes a second, linear hole (35) that receives the second pin (22) during assembly of the fastening part (20) onto the fastening element (50), wherein the first pin (21) is configured to travel along an arcuate pathway along the arcuate-shaped hole (31) during the engagement, and is configured to be elastically deformed as it travels along the arcuate-shaped hole (31).