Spring device at a swivelable hatch of a motor vehicle
AssigneeStabilus GmbH
InventorsUlrich Koestler, Arne Koehler, Christoph Ulrich, Nadja Kaiser
Life of this patent
Estimating the term…
Abstract
A spring device at a swivelable hatch of a motor vehicle, having a gas spring and a helper spring between the body of the motor vehicle and the hatch. The hatch is a front hood which can be raised into a pedestrian protection position prior to an impact of a pedestrian on the front hood, by an actuator activated by a sensor device. The helper spring is preloaded with a preloading force which, in case of a malfunction in which the gas spring has no gas pressure or a reduced gas pressure, is sufficient to adjust the front hood into the raised pedestrian protection position and to hold the front hood in the raised pedestrian protection position prior to the impact.
Claims13
A spring device arranged at a swivelable hatch configured as a front hood that can be raised into a pedestrian protection position by an actuator activated by a sensor device prior to an impact of a motor vehicle, comprising:
- a gas spring;
- a helper spring arranged between a body of the motor vehicle and the hatch that is preloaded with a preloading force which, in case of a malfunction in which the gas spring has one of no gas pressure and a decreased gas pressure, is sufficient to adjust the front hood into the raised pedestrian protection position and to hold the front hood in the raised pedestrian protection position.
Dependencies are inferred from the claim text.