An input device includes a supporting unit which is provided with first shafts, and {HEAD ~ a rotating unit} is connected to the first shafts in {TAIL ~ a rotatable manner} 
is connected in
An input device includes a supporting unit which is provided with first shafts , and { HEAD ~ a rotating unit } is connected to the first shafts in { TAIL ~ a rotatable manner }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL