Unmanned aerial vehicle

1. An aerial vehicle, comprising:

a package carrier including a plurality of vertical members, the plurality of vertical members being changeable in relative positions in a horizontal direction and surrounding a package in the horizontal direction to prevent falling of the package;

a plurality of rotary wings which are changeable in relative positions in the horizontal direction;

an actuator configured to change the relative positions of the plurality of vertical members and the relative positions of the plurality of rotary wings; and

a plurality of arms moveable by the actuator,

wherein the relative positions of the plurality of vertical members and the relative positions of the plurality of rotary wings are changeable,

wherein the package carrier is changed in shape in the horizontal direction in accordance with the relative positions of the plurality of vertical members, and

wherein the change in the relative positions of the plurality of rotary wings is in conjunction with the shape of the package carrier,

wherein each of the plurality of vertical members is held by a corresponding one of the plurality of arms, and

wherein each of the plurality of rotary wings is held by a corresponding one of the plurality of arms.

2. The aerial vehicle according to claim 1 , wherein each of the plurality of arms is configured to hold both at least a corresponding one of the plurality of vertical members and at least a corresponding one of the plurality of rotary wings.

3. The aerial vehicle according to claim 2 ,

wherein the plurality of arms extend in the horizontal direction and are extendable and contractible, and

wherein the actuator is configured to extend and contract the plurality of arms.

4. The aerial vehicle according to claim 1 ,

wherein the plurality of arms include:

a first group of arms configured to hold the plurality of vertical members; and

a second group of arms configured to hold the plurality of rotary wings, and

wherein the actuator includes:

a first actuator configured to move the first group of arms; and

a second actuator configured to move the second group of arms.

5. The aerial vehicle according to claim 4 , wherein the second group of arms each vertically overlap with a corresponding one of the first group of arms and extend in the same direction.

6. The aerial vehicle according to claim 4 , wherein the second group of arms extend in directions different from those of the first group of arms.

7. The aerial vehicle according to claim 4 , wherein the plurality of vertical members are changeable so that a maximum inscribed rectangle thereamong is formed into a similar shape or a non-similar shape.

8. The aerial vehicle according to claim 7 ,

wherein the plurality of rotary wings include:

a first pair of rotary wings which are adjacent to each other along a first direction; and

a second pair of rotary wings which are adjacent to each other along a second direction orthogonal to the first direction,

wherein, when the inscribed rectangle is formed into an elongated rectangle in the first direction, and a clearance of the first pair of rotary wings is set larger than a clearance of the second pair of rotary wings.

9. The aerial vehicle according to claim 4 , wherein a change amount of the relative positions of the plurality of rotary wings is proportional to a change amount of the relative positions of the plurality of vertical members.

10. The aerial vehicle according to claim 4 ,

wherein the plurality of rotary wings are arranged on an outer side from the shape of the package carrier by a distance, and

wherein a size of the distance is proportional to a size of the shape of the package carrier.

11. The aerial vehicle according to claim 4 ,

wherein the first group of arms extend in the horizontal direction and are extendable and contractible, and

wherein the first actuator is configured to extend and contract the first group of arms.

12. The aerial vehicle according to claim 4 ,

wherein the second group of arms extend in the horizontal direction and are extendable and contractible, and

wherein the second actuator is configured to extend and contract the second group of arms.

13. The aerial vehicle according to claim 4 , wherein the second actuator is configured to swing each of the second group of arms at least at one position.

14. The aerial vehicle according to claim 13 , wherein the second actuator is configured to swing each of the second group of arms in a horizontal direction.

15. The aerial vehicle according to claim 13 , wherein the second actuator is configured to swing each of the second group of arms in a perpendicular direction.