Electric power steering apparatus

Abstract

The present invention relates to an electric power steering apparatus including a power transmission belt. The power transmission belt includes: an engagement part provided inside the power transmission belt where the power transmission belt is engaged with a motor pulley and a nut pulley; and a vibration reduction part provided outside the power transmission belt opposite to the engagement part. The engagement part is made of an elastic material, and the vibration reduction part is made of an elastic material that is less rigid than the engagement part. With this configuration, even if vibration and noise are generated from a motor, between the motor and a pulley, and between a belt and the pulley in the process of transmitting a torque of the motor, the vibration and the noise are reduced and prevented from being transferred to a peripheral component.

Dependencies are inferred from the claim text.