The main difference in {HEAD ~ relation} to {TAIL ~ the embodiment} shown in FIG 1 is the shape of the elastic element, which here is more a disc than a sleeve 
to
The main difference in { HEAD ~ relation } to { TAIL ~ the embodiment } shown in FIG 1 is the shape of the elastic element , which here is more a disc than a sleeve
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL 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 OTH