Aktuator zum Öffnen und Schliessen einer Tür oder einer Heckklappe eines Autos

Details

Veröffentlichungs-Nr.

EP3702638

Aktenzeichen

EP19159435

Anmeldetag

26. Februar 2019

Veröffentlichung

14. Juli 2021

Erteilung

14. Juli 2021

Rechtsraum

EP

IPC

F16F1/02E05F1/10E05F15/622

Abstract

An actuator for opening and closing a door or a tailgate of a car comprises a helical compression spring and a motor. The helical compression spring is provided for opening a door or the tailgate of a car when compressive forces of the helical compression spring are released. The motor is provided for compressing the helical compression spring in order to close the door or the tailgate of the car. The helical compression spring comprises a helically coiled coated steel wire. The helically coiled coated steel wire comprises a steel core and a metallic coating layer. The steel core comprises a steel alloy. The steel alloy comprises between 0.8 and 0.95 wt% carbon, between 0.2 and 0.9 wt% manganese; between 0.1 and 1.4 wt% silicon; optionally one or more than one of the micro-alloying elements chromium, vanadium, tungsten, molybdenum, niobium or boron; optionally aluminum; unavoidable impurities; and iron. The microstructure of the steel core is drawn lamellar pearlite. The metallic coating layer comprises at least 84% by mass of zinc; and preferably aluminum.

Anmelder

Firma

NV Bekaert SA

Land

🇧🇪 Belgien

Fachgebiete