B60D1/14—Draw-gear or towing devices characterised by their type
B60D1/167—Draw-gear or towing devices characterised by their type consisting of articulated or rigidly assembled bars or tubes forming a V-, Y-, or U-shaped draw gear
B60D1/1675—Draw-gear or towing devices characterised by their type consisting of articulated or rigidly assembled bars or tubes forming a V-, Y-, or U-shaped draw gear comprising extendable, retractable or foldable members