| 摘要 |
The present invention relates to a motor-driven power steering system. The motor-driven power steering system comprises: a driving member generating power; a worm shaft member which is provided with a worm gear and rotates by engaging with a worm wheel; and a coupler member which is interposed between the driving member and the worm shaft member and transmits the power generated from the driving member to the worm shaft member, wherein the coupler member comprises: an inner coupling portion into which the worm shaft member is inserted to be coupled; an outer coupling portion which is spaced apart from the inner coupling portion and formed to surround an inner circumferential portion, and into which a rotary shaft of the driving member is inserted to be coupled; and a connecting portion which connects the inner coupling portion and the outer coupling portion. The present invention improves durability and reduces the number of parts and weight. |
