Method for manufacturing shutter device for vehicle

A method of manufacturing a shutter device for a vehicle, which adjusts an amount of air flowing from an outside of a vehicle surface to an inside thereof and includes:

• a frame member having an opening provided therein and mounted on the vehicle;
• a fin extending in a first direction;
• and
• a rotary shaft unit configured to pivotally support the fin on the frame member to be pivotable in the opening of the frame member, wherein
• the frame member includes
• an upper base that extends in the first direction,
• a lower base that is provided below the upper base and extends in the first direction, and
• at least one pillar that extends in a direction intersecting the first direction and is connected to the upper base and the lower base, and
• the method comprising:
• preparing the upper base, the lower base, and the pillar independently from one another;
• and
• mounting an upper portion of the pillar on the upper base, mounting a lower portion of the pillar on the lower base to assemble the frame member.