Motor-driven lawn mower with improved drive clutch

摘要

A motor-driven lawn mower provided with means suitable for connecting and disconnecting the axis carrying the driving wheels from the other driving gears wherein said means consist of a clutch comprise a first housing member (9) integral with the motion drive shaft (4) to the wheels, which exhibits a cam profile (10) comprising at least one inclined portion (11) continuing with a straight portion (12) parallel to the shaft axis; a second housing member (13) idly mounted on said shaft (4) and integral with a toothed wheel (15) connected to the drive, said second housing member (13) exhibiting a cam profile (14) comprising at least one inclined portion (23) continuing with a straight portion (24) parallel to the shaft (4) axis, said cam profile (14) of said second housing (13) facing said cam profile (10) of said first housing (9); means (20) suitable for being concurrently engaged by the cam profiles of said first and second housing to constrain them in rotation. <IMAGE>