Fixing member, self-aligning bearing mechanism, actuator, and lamp
An actuator includes: an output unit 30 having an output shaft 33 ; and a first worm 40 and a second worm 50 extending along a face perpendicular to the output shaft 33 , wherein: the output unit 30 includes a rotating mechanism 34 a configured to be meshed with the first worm 40 to rotate the output shaft 33 about a predetermined rotation axis 33 a , and a moving mechanism 39 configured to be meshed with the second worm 50 to move the output shaft 33 in a direction orthogonal to the rotation axis 33 a ; the first worm 40 and the second worm 50 are placed to sandwich the output shaft 33 ; and a distance between the second worm 50 and the output shaft 33 is shorter than a distance between the first worm 40 and the output shaft 33.
1. An actuator comprising:
an output unit having an output shaft; and
a first worm and a second worm extending along a face perpendicular to the output shaft, wherein:
the output unit includes
a flange;
a rotating mechanism configured to be meshed with the first worm to rotate the output shaft about a predetermined rotation axis, and
a moving mechanism configured to be meshed with the second worm to move the output shaft in a direction orthogonal to the rotation axis;
the first worm and the second worm are placed to sandwich the output shaft;
a distance between the second worm and the output shaft is shorter than a distance between the first worm and the output shaft;
the moving mechanism has a helical gear rack formed on a face opposed to the second worm in the output unit, the helical gear rack configured to be meshed with the second worm; and
the flange extends in a direction orthogonal to the rotation axis and overlaps the entire helical gear rack in a direction parallel to the rotation axis.
2. The actuator according to claim 1 , wherein
the helical gear rack is formed on a shortest line connecting the output shaft to the second worm.
3. The actuator according to claim 1 , wherein:
the actuator has a circuit board;
the first worm and the second worm are placed on one face side of the circuit board; and
in electronic components placed on the circuit board, an electronic component is placed protruding above a position where the first worm or the second worm is placed, and the electronic component is placed on an opposite side of the output shaft of the second worm.
4. A lamp comprising:
the actuator according to claim 1 ; and
a lamp unit having a light source, the lamp unit being connected to the output shaft of the actuator.