Grille shutter device

1. A grille shutter device comprising a fin unit including slat members inside an opening provided at a part of a decorative side of a vehicle front, the fin unit being configured to selectively assume a closed state and an open state, the closed state being a state where the slat members are each disposed so as to close the opening in a vehicle front view, the open state being a state where the slat members have been moved from respective positions in the closed state to a vehicle rear side of the opening and arrayed in a row substantially along a vehicle front-rear direction.

2. The grille shutter device according to claim 1 , wherein

the slat members each move to a position on the vehicle rear side of the opening and on a vehicle upper side of the opening while maintaining substantially the same orientation as in the closed state when the slat members shift from the closed state to the open state.

3. The grille shutter device according to claim 1 , wherein

in the open state, a lower end of each of the slat members is located at substantially the same position as an upper edge of the opening, or a position farther on a vehicle upper side than the upper edge.

4. The grille shutter device according to claim 1 , further comprising:

support members that support and couple to one another the slat members so as to allow the slat members to turn around an axis oriented in a vehicle width direction; and

a driving mechanism configured to move the slat members between the open state and the closed state by turning one of the support members substantially in the vehicle front-rear direction.

5. The grille shutter device according to claim 4 , wherein

the driving mechanism is configured to turn a support member, among the support members, that supports a slat member, among the slat members, located on a vehicle lower side relative to a slat member located farthest on a vehicle upper side of the slat members, substantially in the vehicle front-rear direction between the open state and the closed state.

6. The grille shutter device according to claim 4 , wherein

the support members include upper link members and lower link members, a first upper link member among the upper link members is rotatably mounted at a part of a first slat member among the slat members on a vehicle upper side, and first lower link member among the lower link members is rotatably mounted at a part of the first slat member farther on a vehicle lower side than the part at which the first upper link member is mounted on the first slat member, and

the first upper link member and the first lower link member form a four-joint link by being mounted to the first slat member.

7. The grille shutter device according to claim 4 , wherein

each of the support members has a cutout at a position corresponding to a portion of another of the support members at which one of the slat members is supported.

8. The grille shutter device according to claim 1 , further comprising

a frame that is installed on the vehicle rear side of the opening wherein

the fin unit is provided inside the frame.

9. The grille shutter device according to claim 1 , wherein

each of the slat members has a rectangular plate shape with a plate thickness direction oriented in the vehicle front-rear direction and a longitudinal direction oriented in a vehicle width direction.

10. The grille shutter device according to claim 1 , wherein

in the closed state, the slat members are each disposed such that an in-plane direction of each of the slat members follows a plane continuous with the decorative side, and

in the open state, the slat members have been moved from the respective positions in the closed state to a position on the vehicle rear side of the opening and on a vehicle upper side of the opening.