Abstract: In a screen wiper apparatus for a motor vehicle, a drive shaft is mounted for rotation about its axis in a fixed bearing. The apparatus includes a screen wiper having a drive head which is fixed on the drive spindle by coupling means. Complementary indexing means are provided, for indexing the angular position of the drive head with respect to the drive spindle, in which the drive head includes an element having a form complementary with that of a corresponding indexing element carried by a member which is coupled in rotation to the drive spindle.

Abstract: The rear part of a motor vehicle includes a rear window and a screen wiping apparatus for the rear window, comprising an electrical drive motor unit arranged inside the vehicle and having a drive shaft which projects out of the vehicle. The drive shaft extends through a bearing bush which is fitted in a hole formed through either the rear window or an adjacent portion of the vehicle body-work. A shouldered mounting bush is also fitted in this hole, around the bearing bush. The bearing bush has a threaded portion projecting externally, and the drive motor unit is secured to the vehicle by means of a nut which is tightened on this threaded portion. A rear light, typically a stop light arranged inside the vehicle so as to shine through the rear window, is secured on the screen wiping apparatus.