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