Abstract: The invention relates to an overload protection device which has a force-loaded or torque-loaded component, a chamber for receiving a fluid which is at a predetermined pressure, and at least two transmitting elements which are connected to said component in a force-transmitting manner. The transmitting elements serve to transmit a counter-force or a counter-torque, which is generated by the pressure acting upon said transmitting elements, to the component, and is, at the same time, part of a sealing arrangement which occludes an outlet of the chamber due to the fluid pressure. If the force or torque acting upon the component are greater than the counter-force or counter-torque resulting from the predetermined pressure, the sealing arrangement unblocks the outlet, as a result of which the pressure in the chamber drops below said predetermined pressure.

Abstract: The invention relates to an overload protection device (10) which has a force-loaded and/or momentum-loaded component (12), a chamber (32) for receiving a fluid which is at a predetermined pressure (p), and at least one transmitting element (22) which is connected to said component (12) in a force-transmitting manner. The transmitting element (22) serves to transmit a counter-force ( F) and/or counter-momentum, which is generated by the pressure (p) acting upon said transmitting element (22), to the component (12), and is, at the same time, part of a sealing arrangement (20) which occludes an outlet (30) of the chamber (32) by means of the fluid pressure (p). If the force (F) and/or momentum acting upon the component (12) is/are greater than the counter-force ( F) and/or counter-momentum resulting from the predetermined pressure (p), the sealing arrangement (20) unblocks the outlet (30), as a result of which the pressure in the chamber drops below said predetermined pressure (p).

Abstract: Rotating and positioning tool for axially symmetrical workpieces, especially for steering tie rods in motor vehicles. A housing with a recess for the introduction of a workpiece accommodates a clamping mechanism with a crown gear that is positioned and driven at its circumference. An empty space inside the crown gear communicates with the outside through an access slot. The space is demarcated by a contour. Three tension rollers are accommodated inside the empty space in such a way that they can be displaced radially inwardly against the force of springs. The rollers roll along the contour. The distance of the contour from its axis of rotation continuously varies through alternating maxima and minima. As the crown gear rotates, the tension rollers are forced in from a starting position where the distance is maximal and securely clamp the workpiece, which is located at the axis of rotation.