Motor-Driven Actuator
AssigneeU-Shin Ltd.
InventorsKeisuke FUKUSHIMA, Hideki NOMA
Life of this patent
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Abstract
The present invention is to provide a motor-driven actuator that can prevent generation of hitting sound due to rattling of an output shaft of a motor. The motor-driven actuator is equipped with a motor with an output shaft, worm attached to the output shaft, and rotation member with a worm wheel engaging with the worm inside a case, wherein a bearing member equipped with a regulating face adjacent to a top end of said output shaft and intergrading by biasing force of a spring in a manner said regulating face pushes the top end of said output shaft into the direction of thrust is provided.
Claims6
A motor-driven actuator characterized by that:
- said motor-driven actuator provided with a motor with an output shaft, a worm attached to said output shaft, and a rotation member equipped with a worm wheel that mates with said worm inside a case;
- wherein
- a bearing member equipped with a regulating face adjacent to a top end of said output shaft and intergrading by biasing force of a spring in a manner said regulating face pushes the top end of said output shaft into the direction of thrust
- is provided.
A motor-driven actuator characterized by that:
- said motor-driven actuator for steering lock for a vehicle is equipped with a lock bolt engaging with a steering shaft to prevent rotation of a steering;
- a rotation member holding said lock bolt inside to and fro to the direction of rotation;
- a cam mechanism having a cam groove and a cam follower and moving said lock bolt to the direction of the rotating shaft of said rotation member by moving said cam follower in said cam groove by the rotation of said rotation member, said cam groove disposed a one side of said lock bolt and said rotation member and inclined to the circumferential direction, and said cam follower disposed at the other side and sliding in said cam groove;
- a case body equipped with a lock bolt thrusting hole to trust said lock bolt externally;
- and
- a case cover closing an opening of said case body;
- wherein a rotation holding portion to hold rotatably said rotation member, and a rotation prevention portion engaging with an engagement portion of said lock bolt to prevent rotation of said lock bolt are disposed on the side of said case body.
Dependencies are inferred from the claim text.