Actuator and vehicle headlamp

摘要

A coupling member has a first driven portion and an output shaft to be coupled to a lamp unit, and is rotatable in the horizontal direction about the shaft center of the output shaft. A driven member has a second driven portion and a follower portion, and is rotatable relative to the coupling member. An acting portion is engaged with the follower portion. A first driving unit is engaged with the first driven portion to rotate the coupling member relative to the driven member. A second driving unit is engaged with the second driven portion to rotate the driven member relative to the coupling member. When the second driving unit rotates the driven member, the acting portion engaged with the follower portion causes the rotation center to move, and the coupling member is moved together with the driven member.

主权项

1. An actuator comprising:
a coupling member comprising an output shaft to be coupled to a lamp unit and a first driven portion, the coupling member being rotatable in a first direction about a shaft center of the output shaft; a driven member comprising a second driven portion arranged on a first side of a rotation center aligned with the shaft center and a follower portion arranged on a second side of the rotation center opposite to the first side, the driven member being rotatable relative to the coupling member about the rotation center; an acting portion engaged with the follower portion; a first driving unit engaged with the first driven portion to rotate the coupling member relative to the driven member about the shaft center; and a second driving unit engaged with the second driven portion to rotate the driven member relative to the coupling member, wherein, when the second driving unit rotates the driven member, the acting portion engaged with the follower portion causes the rotation center to linearly move in a second direction and the coupling member is moved together with the driven member in the second direction.