The slide element has a tongue upwardly extending from the front end thereof and provided with an inclined outer surface which abuts {HEAD ~ the front end} of {TAIL ~ the cover member} 
of
The slide element has a tongue upwardly extending from the front end thereof and provided with an inclined outer surface which abuts { HEAD ~ the front end } of { TAIL ~ the cover member }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL