Refrigerator

1. A refrigerator comprising:

a refrigerator main body having a cooling chamber;

a cooling chamber door to open and close the cooling chamber;

area storage member disposed at a rear area of the cooling chamber; and

a front storage member disposed at a front of the rear storage member and movable in back and forth directions along the cooling chamber with respect to the rear storage member,

wherein the rear storage member and the front storage member are implemented as a rear tray and a front tray, respectively, each having a storage space therein, and

the refrigerator further comprises connection links to couple the front tray to the rear tray such that the front tray is movable up and down with respect to the rear tray,

wherein the connection links are disposed at both sides of each of the front tray and the rear tray, and

wherein for each of the both sides, the connection links comprises:

a rear link having one end coupled to a rear portion of the rear tray and an other end coupled to a rear portion of the front tray; and

a front link disposed below the rear link and the front link having one end coupled to a front portion of the rear tray and an other end coupled to a front portion of the front tray.

2. The refrigerator of claim 1 , further comprising rails to guide the rear tray and the front tray back and forth, and

wherein each of the rails comprises a fixed rail fixed to the cooling chamber, and a movable rail retractably coupled to the fixed rail.

3. The refrigerator of claim 2 , wherein the front tray comprises front link receiving portions to receive front end portions of the rear link and the front link, respectively, and

wherein the rear tray comprises rear link receiving portions to receive rear end portions of the rear link and the front link, respectively.

4. The refrigerator of claim 3 , wherein the front tray slides along the movable rail and when the movable rail is stopped after being slid to a front of the fixed rail by a predetermined length, the front tray moves down with respect to the rear tray.

5. The refrigerator of claim 4 , wherein the front link comprises a horizontal section extending from the rear portion of the rear tray toward the front tray, and an inclined section inclined from the horizontal section toward the rear portion of the front tray, and

the rear link comprises an inclined section upwardly inclined from the rear portion of the rear tray, and a horizontal section horizontally extending from the inclined section toward the front portion of the front tray.

6. The refrigerator of claim 5 , wherein the rear link and the front link contact each other at least along the respective inclined sections of the rear link and the front link to support the front tray when the front tray is moved down.

7. The refrigerator of claim 6 , wherein contact surfaces are formed at a lower end of the rear link and an upper end of the front link, respectively.

8. The refrigerator of claim 1 , wherein the rear storage member is implemented as a rear shelf disposed at a rear area of the cooling chamber,

and the front storage member is implemented as a front shelf movable with respect to the rear shelf, and

the refrigerator further comprises support members to support the front shelf and the rear shelf, wherein the support members provide support to the front shelf when the front shelf extends from the rear shelf, and provide for the front shelf to be disposed below the rear shelf when the front shelf is retracted to the rear shelf.

9. The refrigerator of claim 8 , wherein each of the support members comprises a guide portion configured to guide the front shelf to and from the extended position to the retracted position.

10. The refrigerator of claim 9 , wherein a plurality of protrusions are formed on a lower surface of the rear shelf, and protrusion receiving portions to receive the protrusions therein are formed on the support members.

11. The refrigerator of claim 10 , wherein the protrusions comprise front protrusions formed on a front area of the rear shelf, and rear protrusions formed on a rear area of the rear shelf.

12. The refrigerator of claim 11 , wherein the rear shelf is perpendicularly rotatable based on the rear protrusions.

13. The refrigerator of claim 8 , wherein a single plate-shaped shelf is disposed above or below the rear shelf and the front shelf.

14. The refrigerator of claim 13 , wherein the single plate-shaped shelf, the rear shelf and the front shelf are formed of a rigid material.

15. The refrigerator of claim 14 , wherein the single plated-shaped shelf, the rear shelf and the front shelf are formed of glass, each having a corrosion-processed portion formed by corrosion processing with respect to at least one surface thereof.

16. The refrigerator of claim 1 , further comprising:

a drawer disposed in the cooling chamber;

a cover disposed on the drawer; and

a cover driving unit to allow the cover to be slidable upon drawing the drawer out.

17. The refrigerator of claim 16 , wherein the cover driving unit comprises:

a pinion;

a first rack disposed on the drawer and engaged with the pinion; and

a second rack disposed on the cover and engaged with the pinion.

18. The refrigerator of claim 16 , wherein the cover driving unit comprises:

a belt connected to the cover and the drawer, respectively; and

a plurality of pulleys to movably support the belt.

19. The refrigerator of claim 18 , wherein the cover driving unit comprises a power transfer piece having one side connected to the belt and an other side protruding toward the drawer, and

wherein the drawer comprises a non-contact section non-contactable with the power transfer piece along a rotating direction of the belt.

20. A refrigerator comprising:

a refrigerator main body having a cooling chamber;

a cooling chamber door to open and close the cooling chamber;

a rear storage member disposed at a rear area of the cooling chamber;

a front storage member disposed at a front of the rear storage member and movable in back and forth directions along the cooling chamber with respect to the rear storage member;

a drawer disposed in the cooling chamber;

a cover disposed on the drawer; and

a cover driving unit to allow the cover to be slidable upon drawing the drawer out,

wherein the cover driving unit comprises:

a belt connected to the cover and the drawer, respectively; and

a plurality of pulleys to movably support the belt,

wherein the cover driving unit comprises a power transfer piece having one side connected to the belt and an other side protruding toward the drawer, and

wherein the drawer comprises a non-contact section non-contactable with the power transfer piece along a rotating direction of the belt.