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