Springrate controlled motor bearing

摘要

A spring rate-switchable engine bearing with a supporting bearing element and a supporting element is presented, which has at least two spring elements arranged in parallel or in series between the supporting bearing element and the supporting element. One ofthe spring elements can be blocked by a switching device, in which the switching device has a double toggle mechanism. Extraordinarily high axial forces in the range of >10 kN can be transmitted due to this design according to the present invention in the blocked state of the spring element, and an especially compact design is also obtained due to this design at the same time. Moreover, a lightweight and small motor operator drive can be directly integrated in the engine bearing according to the present invention due to the extraordinarily high power amplification of the double toggle mechanism being used without additional supplementary components being necessary outside the bearing.