Carbriolet vehicle with manually operable emergency mechanism

摘要

The vehicle has a drive shaft or structural unit acting on drive, and a screw formed with regions (19, 20, 21). The regions (19, 20) have a smaller angle of incidence opposite a level standing perpendicular to a rotatable axis of the shaft/unit and acting on drive gear wheels with smaller diameter. The other region (21) has a larger angle of incidence opposite to the level and loaded by a gear wheel of manual emergency operation.