Refrigerator

1. A refrigerator comprising:

a body having a storage space therein;

a door opening and shutting the storage space, the door being slidably movable with respect to the body;

rails arranged on the door for slidably guiding the door, each of the rails including a fixed rail member that is non-movable with respect to the door, each of the fixed rail members having a surface that is exposed when the door is in an open position and a shut position;

a container arranged in the storage space behind the door, a gap being between the container and at least one of the fixed rail members;

a moving unit connected to a rear surface of the door, the moving unit being configured to move the container in a vertical direction with respect to the rear surface of the door; and

a safety device covering the gap and a portion of a top of the container when in a lower position, the safety device being connected to the exposed surface of one of the fixed rail members.

2. The refrigerator as claimed in claim 1 , wherein the safety device comprises:

a hinge rotatably fastened to said at least one of the fixed rail members; and

a panel fastened to the hinge, the panel pivoting when the container moves in the vertical direction to cover the gap.

3. The refrigerator as claimed in claim 2 , wherein the hinge is fastened to a top surface of said at least one of the fixed rail members.

4. The refrigerator as claimed in claim 2 , wherein the container has a rim at a top end of the container, the rim sliding on a surface of the panel when the container moves in the vertical direction.

5. The refrigerator as claimed in claim 4 , the rim is in contact with the surface of the panel.

6. The refrigerator as claimed in claim 2 , wherein the panel covers the top of the container when the container moves down.

7. The refrigerator as claimed in claim 2 , wherein a rotation angle of the hinge is within a range of an acute angle.

8. The refrigerator as claimed in claim 2 , wherein the safety device further includes a gasket for covering a gap between the panel and said at least one of the fixed rail members.

9. The refrigerator as claimed in claim 8 , wherein the gasket has a first portion and a second portion, the first portion being located between the hinge and a top surface of said at least one of the fixed rail members.

10. The refrigerator as claimed in claim 9 , wherein the second portion of the gasket is attached to the panel and bends when the panel pivots.

11. The refrigerator as claimed in claim 8 , wherein the gasket is formed of a bendable material.

12. The refrigerator as claimed in claim 11 , wherein the panel is formed of a material less flexible than the gasket.

13. The refrigerator as claimed in claim 2 , wherein when the container moves up to a highest position, a top-side end of the panel is higher than a top-side end of the container.

14. The refrigerator as claimed in claim 2 , wherein the panel comprises at least one hole for passing through cold air.

15. A refrigerator comprising:

a body having a storage space therein;

a door opening and shutting the storage space, the door being slidably movable with respect to the body;

rails arranged on the door for slidably guiding the door, each of the rails including a fixed rail member that is non-movable with respect to the door, each of the fixed rail members having a surface that is exposed when the door is in an open position and a shut position;

a container arranged in the storage space behind the door, a gap being between the container and at least one of the fixed rail members;

a moving unit connected to a rear surface of the door, the moving unit being configured to move the container in a vertical direction with respect to the rear surface of the door; and

a safety device covering the gap between the container and said at least one of the fixed rail members when the container moves in the vertical direction, the safety device covering a top of the container when the container moves down, the safety device having at least one thorough hole for passing cold air into the container, and the safety device being connected to the exposed surface of one of the fixed rail members.

16. A refrigerator comprising:

a door movable in a first direction;

a moving unit connected to a rear surface of the door;

a container supported by the moving unit at the rear surface of the door such that the container is movable in the first direction and a second substantially perpendicular direction;

rails located on the door for slidably guiding the door in the first direction, each of the rails including a fixed rail member that is non-movable with respect to the door, each of the fixed rail members having a surface that is exposed when the door moves in the first direction, and a gap being between the container and at least one of the fixed rail members; and

a safety device covering the gap and a portion of a top of the container when in a lower position, the safety device being connected to the exposed surface of one of the fixed rail members.

17. The refrigerator as claimed in claim 16 , wherein the safety device pivots when the container moves in the second direction, the safety device including:

a hinge rotatably fastened to said at least one of the fixed rail members; and

a panel fastened to the hinge, the panel pivoting when the container moves in the second direction to cover the gap.

18. The refrigerator as claimed in claim 17 , wherein the container has a rim at a top end of the container, the rim sliding on a surface of the panel when the container moves in the second direction.

19. The refrigerator as claimed in claim 17 , wherein the safety device further includes a gasket for covering a gap between the panel and said at least one of the fixed rail members.

20. The refrigerator as claimed in claim 17 , wherein the second direction is a vertical direction, when the container moves up to a highest position, a top-side end of the panel being higher than a top-side end of the container.

21. The refrigerator as claimed in claim 2 , wherein a second gap is located between the container and another fixed rail member of the fixed rail members, the refrigerator further comprising a second safety device, the second safety device including:

a second hinge rotatably fastened to said another fixed rail member of the fixed rail members; and

a second panel fastened to the second hinge, the second panel pivoting when the container moves in the vertical direction to cover the second gap.