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