Rollover protection system for motor vehicles with a roll bar to be actively controlled by a sensor

摘要

The invention is based on a known rollover protection system for motor vehicles, with a roll bar (1), which in a stationary support (5) is guided in a pretensioned drive for sensor-controlled extension of the defined (1) from a rest position into a protective position, and a locking device (7) for the in the protective position, and erected roll-over body (1).In order to achieve a very simple, cost-effective and yet highly effective locking device (7), i.e, lock against the advance of the rollover bar (1) according to an accident, to provide the invention,, the invention provides that a pivotably connected to the vehicle and in the locking sense by a jumper spring (8) is prestressed - catch lever arrangement (9; 9c; 11) with two at least over the width of the defined (1) extending arms (9a, b; 11b, c) is provided which, in the protective position of the defined in direct active contact with corresponding supports on the roll bar (1) are pivotable.