CRASH-ACTIVE HEAD REST

摘要

The headrest for a seat in a vehicle has a support (5) on which are pivot-connected an upper and a lower rocker (11,15) pivotable around a horizontal pivot point. An impact element (13) is connected to the rockers and with the rockers and the support forms a four-bar link which is driven by an energy accumulator so that the impact element travels to a rear locked crash position. The upper and the lower rocker occupy in relation to each other an alignment which deviates from the parallel form. The upper and lower rockers have different lengths, with the lower being longer than the upper.