Method for connecting two components for conjoint rotation

Method for connecting two components, namely a screw (1) and a rotary tool (8), in a rotationally fixed manner with respect to the longitudinal axis of the component designed as a screw (1), wherein one of the components has an outer driving profile (5) with external drive surfaces (6) and the other component has an inner driving profile (9) being complementary to the outer driving profile (5) and having internal drive surfaces (10), by plugging the driving profiles (5, 9) of the components together axially in order to achieve a positive, rotationally fixed connection of the components by the interaction of the driving profiles (5, 9), wherein

• the driving profiles (5, 9) each define a profile axis (PA, PI) and the profile axis (PA, PI) of the component designed as a screw (1) extends coaxially to the longitudinal axis thereof,
• the drive surfaces (6) of the component with the outer driving profile (5) are inclined relative to the respective profile axis (PA, PI) of the component and approach the respective profile axis (PA, PI) towards the free end of the component,
• the drive surfaces (10) of the component with the inner driving profile (9) are inclined relative to the respective profile axis (PA, PI) of the component and become averted from the respective profile axis (PA, PI) towards the free end of the component, and
• the driving profiles (5, 9) are designed complementary to one another in such a way, that the inclined drive surfaces (6, 10) of the components (1, 8) come into surface contact with one another, when the components (1, 8) are plugged together axially, so that the interaction of the driving profiles (5, 9) produces a force-fit and/or clamping connection between the components (1, 8), via which the components (1, 8) are axially connected to one another,
• wherein
• components (1, 8) are used, in which the drive surfaces (6, 10) of the driving profiles (5, 9) have a constant inclination relative to their profile axis (PA, PI) in the contact regions, in which they come into surface contact/engagement, which inclination is the same for all drive surfaces of both components (1, 8), and
• in that a component with an outer driving profile (5) is used, in which the drive surfaces (6) are all concave or all convex in cross-section, i.e. inwardly or outwardly curved, and a component with an inner driving profile (9) complementary to the outer driving profile (5) is used, the drive surfaces (10) of which inner driving profile (9) are curved in a complementary convex/concave manner with respect to the drive surfaces (6) of the outer driving profile (5) in such a way that, in the plugged state, the drive surfaces (6, 10) of the two components (1, 8), viewed in the circumferential direction, come into surface contact/engagement with one another on both sides of the apex of the concave/convex curvature, and in that the driving profiles (5, 9) are designed in such a way that they do not come into contact with one another in the transition regions lying between the drive surfaces (6, 10).