said case main body including on the lateral wall thereof transverse projections which extend to such a position that said {HEAD ~ transmission cover member} and said V belt cover engage {TAIL ~ the lateral wall} of said case main body 
engage
said case main body including on the lateral wall thereof transverse projections which extend to such a position that said { HEAD ~ transmission cover member } and said V belt cover engage { TAIL ~ the lateral wall } of said case main body
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH