„Or, a 13 oak leaves vert strewn shield, three half-timbered gables in ratio 2:1 each with two windows, gate and gable top sable.“ 
The arms were granted on May 14, 1962, but were already designed in 1940. The arms are canting, Dreierwalde, or three-forest, showing three typical houses in an oak forest.
This image is taken from www.ngw.nl – Heraldry of the World –  an international civic heraldry site by Ralf Hartemink. http://www.ngw.nl/int/dld/d/dreierwa.htm
unknown - constructed and added by Jürgen Krause