Wiper blade and wiper device for cleaning vehicle windows

A wiper device, comprising:

• a wiper arm, wherein the wiper arm is substantially U-shaped in cross section in a connecting region with a wiper blade adapter, the wiper arm comprising:
• a base section from which, on opposite sides, legs originate, which have an inwardly bent, strip-shaped holding section on the side lying opposite the base section;
• and
• a wiper blade a comprising:
• wiper blade body extending in a wiper blade longitudinal axis, the wiper blade body comprising the wiper blade adapter,
• wherein the wiper blade adapter makes possible a mechanical connection, constructed as detent connection, of the wiper blade with a wiper arm adapter arranged on a wiper arm,
• wherein the wiper blade adapter comprises at least one elastically arranged detent tongue, which cooperates in a form-fitting manner with the wiper arm adapter to form the detent connection,
• wherein the legs of the wiper arm embrace the wiper blade adapter laterally,
• wherein the connecting or releasing between the wiper blade adapter and the wiper arm adapter takes place substantially in a direction which runs perpendicular to the wiper blade longitudinal axis, and the at least one detent tongue has a mounting region, which embraces the holding section of the wiper arm adapter for formation of the detent connection,
• wherein the mounting region has a contour which is adapted in a form-fitting manner to the cross section of the holding section,
• wherein the detent tongue is articulated on the wiper blade adapter on an upper side facing the wiper arm adapter, and wherein the detent tongue comprises, on the side facing the upper side, a ramp section which on relative moving to the holding section of the wiper arm adapter, produces a movement of the detent tongue transversely to the mounting or dismantling direction, and
• wherein the detent tongue has an actuating region which adjoins the mounting region on the side facing away from the base section of the wiper arm adapter, and wherein the actuating region with a mounted wiper arm adapter is arranged beneath the holding section of the wiper arm adapter.