{TAIL ~ The clutch mechanism} transmits the driving force of the input rotating element by {HEAD ~ the contraction} of the coil spring 
{ TAIL ~ The clutch mechanism } transmits the driving force of the input rotating element by { HEAD ~ the contraction } of the coil spring
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH