Engine-driven lawn mower system with a retractable belt-driven rotary grass trimming flail unit, and methods of mounting the unit on lawn mowers

摘要: A motorized lawn mowing machine has a generally horizontal deck with an engine releasably mounted thereon. vertical drive shaft driven by the protrudes through opening in to mount grass cutter blade thereon below deck. adaptor plate is on between and deck, having for passing radially extending extension arm mechanism parallel arms projecting at sidewisely forward angle. The houses first pulley fixed rotate level of arms. slideably supports flail assembly upper second alignment pulley. An endless belt member trained around pulleys, manipulatable connected slide device engage tauten assembly.