Patent ID: 7934737
Filing Date: 2011-05-03
Classification: B60R

Abstract:
1. A step device for a vehicle including a movable step arranged in a doorway that is opened and closed by a door, the step device comprising: an electrical drive source; a first transmission mechanism which transmits power from the electrical drive source to the door and opens or closes the door; a second transmission mechanism which transmits power from the electrical drive source to the step through the first transmission mechanism and moves the step; and a plate cam rotated by the first transmission mechanism and engaged with a follower arranged in the second transmission mechanism to enable or disable power transmission between the first and the second transmission mechanisms; wherein the plate cam includes: a first cam portion which pushes the follower during rotation of the plate cam when the door is in a range of a predetermined open/close position to enable or disable power transmission between the first and the second transmission mechanisms; and a second cam portion which frees the follower from the pushing during rotation of the plate cam and disables power transmission between the first and the second transmission mechanisms when the door is outside the range of the predetermined open/close position.