The cam mechanism comprises a first cam member and a second cam member, and it converts {HEAD ~ rotation} of {TAIL ~ the first cam member} about an axis of rotation into a first straight line motion of the second cam member 
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The cam mechanism comprises a first cam member and a second cam member , and it converts { HEAD ~ rotation } of { TAIL ~ the first cam member } about an axis of rotation into a first straight line motion of the second cam member
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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