{HEAD ~ The end} of the needle 136 and the needle sheet 143 repeatedly contact to each other according to {TAIL ~ the supplying status} of the electric power to the solenoid coil 130 
{ HEAD ~ The end } of the needle 136 and the needle sheet 143 repeatedly contact to each other according to { TAIL ~ the supplying status } of the electric power to the solenoid coil 130
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH