Abstract: Protection devices in motor vehicles typically have a movable element, for example a roll bar (1) or a flap, which, in the initial state, is fixed in its position by a releasable holding device. In the event of a hazard, the movable element can be released under sensor control by a common pyrotechnic actuator (11) and can be deployed with the protection being activated. The protection device also has a means (8, 9) for locking the deployed, movable element. A driving pressure chamber (12, 15), which is fixed on the bodywork and in which a driving piston (2 with 13, 16) connected to the movable element is accommodated in a guided manner, is connected downstream of the pyrotechnic actuator (11).

Abstract: The invention relates to a motor vehicle door hinge for the pivotal fitting of a vehicle door to a vehicle body, including a door member adapted to be fitted to the vehicle door and a pillar member adapted to be fitted to the vehicle body, these being pivotally interconnected. The invention further relates to a set of components for motor vehicle door hinges including a door member and a pillar member for the pivotal fitting of a vehicle door to a vehicle body. In order to provide a motor vehicle door hinge which can be manufactured particularly cost-effectively and furthermore to provide a set of components for the manufacture of a motor vehicle door hinge, the components of which permit the manufacture of at least two hinges which can be employed on a vehicle, provision is made in the case of the motor vehicle door hinge, that the pillar member and/or the door member are formed from at least two components, i.e. a base plate fittable on the vehicle side and a support arm fittable to the base plate.

Abstract: This type of rollover protection system typically comprises a roll bar body that is either firmly anchored to the vehicle, or is displaceably guided in a guide element that is fixed to the vehicle, in conjunction with a locking device that serves as a retraction blocking mechanism to lock the deployed roll bar body against any unintended retraction. To structurally control high peak loads that occur in a rollover without a total failure of the protective system, particularly of the locking device in deployable systems, the invention provides that the roll bar body, possibly the associated guide element and its fixation on the vehicle as well as the retraction blocking mechanism be configured as a rigid system relative to the maximum load that occurs in a rollover. A cross-member-type support element terminating the roll bar body on the end face is configured as a predetermined deformation point for a limited defined deformation path in load direction for energy degradation.

Abstract: This type of rollover protection system typically comprises a roll bar body (2) that is either firmly anchored to the vehicle, or is displaceably guided in a guide element (1) that is fixed to the vehicle, in conjunction with a locking device that serves as a retraction blocking mechanism to lock the deployed roll bar body (2) against any unintended retraction.