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 {TAIL ~ the body} 4 is detachably mounted to a headrest base 3 
of
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 { TAIL ~ the body } 4 is detachably mounted to a headrest base 3
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