{HEAD ~ The plurality} of recesses 36 are arranged at {TAIL ~ intervals} along a trajectory of a locking projection 33 of an antenna structure body 3 generated when the antenna structure body 3 turns 
{ HEAD ~ The plurality } of recesses 36 are arranged at { TAIL ~ intervals } along a trajectory of a locking projection 33 of an antenna structure body 3 generated when the antenna structure body 3 turns
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL 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 OTH