Seat harness release device for safety belt in vehicle, has chamber and piston formed such that large displacement or deformation of medium from and/or in chamber occurs during action of large forces than action of small forces on medium

摘要

The device (10) has a safety mechanism including a blocking unit with a medium i.e. fluid, which is force-fittingly coupled to a release button (22) by a movable piston (26) that limits a chamber such that an application of force on the release button is transferred in a direction on the medium in the chamber. The medium is selected and the chamber and piston are formed such that a large displacement or deformation of the medium from and/or in the chamber occurs during the action of large forces than an action of small forces by the release buttons on the medium.