{TAIL ~ The upper casing member} is provided at {HEAD ~ a rear portion} of both sides thereof with holding members through which the casing is grasped 
{ TAIL ~ The upper casing member } is provided at { HEAD ~ a rear portion } of both sides thereof with holding members through which the casing is grasped
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH