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