Self-propelled self-guiding lawn mower

摘要: A fully automatic self-propelled self-guiding lawn mower in which guidance of the is based on principal a magnet following passive ribbon or wire ferromagnetic material. The includes two drive wheels located opposite sides vehicle. Each wheel connected to shaft vehicle through separate solenoid controlled clutch and each equipped with electromagnet brake. turned at constant rate speed by battery powered electric motor. system for controlling movement direction rotably mounted bar horizontally aligned longitudinal axis fixedly coupled an electrical contact wiper arm that traverses arcuate array radially extending contacts. one contacts different ones combinations actuators operate clutches brakes other mechanisms associated cutter assembly portion sets cutting blades, first set performing majority grass second trimming off ragged edges might be left blades. Cleaning vanes are also provided. blade tip relatively very slow; being about 3500 feet per minute.