| 主权项 |
1. A vehicular headlamp comprising:
a lamp unit provided with a light source and configured to be pivotable in an upward and downward direction as well as in a leftward and rightward direction; an actuator including a driving shaft configured to rotate and move in a forward and backward direction in order to pivot the lamp unit thereby adjusting an irradiation direction of light emitted from the light source; and a connecting mechanism configured to connect the lamp unit and the actuator in order to transmit a driving force of the actuator to the lamp unit, wherein the actuator is disposed in front of or behind the lamp unit, wherein the connecting mechanism includes: a slider configured to be movable in the forward and backward direction, the slider including a first inserting hole which the driving shaft passes through and a second inserting hole spaced apart from the first inserting hole; a rack configured to be engaged with a gear unit of the driving shaft and to be moved with the slider in the forward and backward direction; and a connecting shaft connected to a lower end portion of the lamp unit and configured to be inserted through the second inserting hole of the slider, and a pinion gear unit, which is engaged with the rack, is formed on a portion of a peripheral surface of the connecting shaft; when the driving shaft of the actuator is moved in the forward and backward direction, the actuator performs a levelling adjustment for adjusting a direction of an optical axis changed with weight of in-vehicle loads by pivoting the lamp unit in the upward and downward direction, and when the driving shaft of the actuator is rotated, the actuator performs a swivel adjustment for adjusting a direction of the optical axis in accordance with a travelling direction of a vehicle by pivoting the lamp unit in the leftward and rightward direction. |
