Power steering apparatus

摘要

An electric power steering apparatus includes: a worm gear; a worm wheel that is connected to the worm gear; a second bearing that rotatably supports the worm gear; a coil spring that biases the second bearing in a preload direction to push the worm gear against the worm wheel; a bearing case that supports the second bearing, and guides the movement of the second bearing along the preload direction; and a shock absorbing member that is provided at a location. The second bearing moves in an opposite direction of the preload direction to be brought into contact with the shock absorbing member at the location.

主权项

1. A power steering apparatus comprising:
a worm gear that receives a drive force to rotate; a worm wheel that is connected to the worm gear; a bearing portion that rotatably supports the worm gear; a biasing portion that biases the bearing portion in one direction to push the worm gear against the worm wheel; a supporting portion that supports the bearing portion, and guides a movement of the bearing portion along the one direction; and a shock absorbing mechanism that is provided at a location, wherein the bearing portion moves in an opposite direction of the one direction to be brought into contact with the shock absorbing mechanism at the location.