Fastening device for a windscreen wiping device

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

• a longitudinally extended upper part (10) which is configured to be at least partially bendable,
• a longitudinally extended lower part (12) which is configured to be at least partially bendable,
• 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 extension (8) of the wiper blade (2), and wherein the connecting elements (18) are designed to enable a movement of the upper part (10) and of the lower part relative to one another with a movement component along the longitudinal extension (8) of the wiper blade (2), and
• a fastening device comprising a fastening part (20) on a side of the wiper blade, wherein the fastening part (20) on the side of the wiper blade is configured so that an engagement can be formed by means of a rotation of the fastening part (20) on the side of the wiper blade relative to the fastening element (50) in order to fix a position of the fastening part (20) on the side of the wiper blade 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 recess (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, elongated linear recess (35) that receives the second pin (22) during assembly of the fastening part (20) onto the fastening element (50), wherein the arcuate-shaped recess is an elongated bent recess that curves about an axis that is spaced from the arcuate-shaped recess, wherein the first pin (21) is configured to travel along an arcuate pathway along the arcuate-shaped recess (31) during the engagement, and is configured to be elastically deformed as it travels along the arcuate-shaped recess (31).