A headrest according to an embodiment of the invention in FIGS 2, 3 and 4 is constructed detachably in such a manner that the whole of a main headrest body 4 is made of a cushion like mass of soft material or {HEAD ~ at least the exterior part} of the body 4 is detachably mounted to {TAIL ~ a headrest base} 3 
A headrest according to an embodiment of the invention in FIGS 2 , 3 and 4 is constructed detachably in such a manner that the whole of a main headrest body 4 is made of a cushion like mass of soft material or { HEAD ~ at least the exterior part } of the body 4 is detachably mounted to { TAIL ~ a headrest base } 3
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH