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