Grille shutter

A grille shutter installed in an opening of a vehicle that takes in traveling wind, the grille shutter comprising:

• a plurality of movable fins arranged in a vehicle up-down direction in the opening, each fin of the plurality of the movable fins being rotatably supported about an axis, the axis being parallel to a vehicle right-left direction;
• and
• an actuator configured to rotationally drive the plurality of movable fins from a closed position to an open position, wherein
• the opening is closed in a case where the plurality of movable fins are positioned at the closed position,
• the opening is opened in a case where the plurality of movable fins are positioned at the opening position,
• the plurality of movable fins at least include
• a first movable fin connected to the actuator, and
• a second movable fin connected to the first movable fin via a time difference link,
• the time difference link is configured to
• cause the second movable fin not to be interlocked with the first movable fin in a case where the first movable fin rotates from the closed position to a predetermined intermediate position, and
• cause the second movable fin to be interlocked with the first movable fin in a case where the first movable fin rotates from the intermediate position to the open position,
• a first end of the time difference link is rotatably connected to a first connecting shaft, the first connecting shaft being fixed to the first movable fin,
• a second end of the time difference link is rotatably connected to a second connecting shaft, the second connecting shaft being fixed to the second movable fin and being movable by a predetermined distance along a longitudinal direction of the time difference link,
• movement of the second connecting shaft relative to the time difference link in the longitudinal direction is permitted in a case where the first movable fin rotates from the closed position to the intermediate position,
• the movement of the second connecting shaft relative to the time difference link in the longitudinal direction is prohibited in a case where the first movable fin rotates from the intermediate position to the open position, and
• a distance from a rotation shaft of the second movable fin to the second connecting shaft is shorter than a distance from a rotation shaft of the first movable fin to the first connecting shaft.