Electric power steering apparatus

摘要

An electric power steering apparatus having a rack and pinion movement converting mechanism for converting rotation movement of a steering wheel into linear movement by engagement between a pinion shaft and a rack shaft. A motor for assisting a driver's steering force asserted on the steering wheel is provided along with the rack and pinion movement converting mechanism and, an elastic body is inserted in a mechanism passage from the pinion shaft to an output shaft of the motor to produce system with low load exerted on the steering mechanism and with reduced rattle and reduced influence from frictional force of a power assisting motor.