One end of the second axle is pivotally inserted into the second housing, the intermediate portion of the second axle is non pivotally fixed to the second aperture, and {TAIL ~ the other end} of {HEAD ~ the second axle} is pivotally inserted into the counter aperture formed in the second supporting member 
One end of the second axle is pivotally inserted into the second housing , the intermediate portion of the second axle is non pivotally fixed to the second aperture , and { TAIL ~ the other end } of { HEAD ~ the second axle } is pivotally inserted into the counter aperture formed in the second supporting member
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH