{HEAD ~ The arm rest} 4, wherein {TAIL ~ the locking element} includes a latching element by which the guide rods can be locked in discrete elevated positions in the guide channels 
{ HEAD ~ The arm rest } 4 , wherein { TAIL ~ the locking element } includes a latching element by which the guide rods can be locked in discrete elevated positions in the guide channels
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH