The screw feed mechanism 39, which converts {HEAD ~ the rotating movement} of {TAIL ~ the thrust receiving flange} 74 into a thrusting movement of the output rod 33, includes a male thread member 95 and a female thread member 96 
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The screw feed mechanism 39 , which converts { HEAD ~ the rotating movement } of { TAIL ~ the thrust receiving flange } 74 into a thrusting movement of the output rod 33 , includes a male thread member 95 and a female thread member 96
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH