ADJUSTING INSTRUMENT COMPRISING MUTUALLY COOPERATING CAM PATTERNS, IN PARTICULAR FOR ADJUSTING AN EXTERIOR VISION UNIT OF A VEHICLE

Adjusting instrument for an exterior vision unit of a vehicle, comprising a base with a foot for attachment to the vehicle, and a frame for carrying the exterior vision unit. The frame is pivotably attached to the base between at least a drive position and a park position via a pair of mutually facing, cooperating cam patterns arranged on the base and the frame, respectively. Each of the two cam patterns comprises cams disposed circumferentially around the pivoting axis in a ring segment, such that cams of the patterns in the drive position engage each other in a rotation-locking manner, and in the pivoting range from and to the drive position adjust over each other. A first cam pattern is provided with a bridge connecting spaced cams in the circumferential direction. The spaced cams form a guiding track on which a guide cam of the second cam pattern is supported.