Refrigerator

Abstract

In a refrigerator, rail devices are connected below the center of a pull-out door in a vertical direction, and connected to two ends thereof in a horizontal direction, and rail holding members are arranged on an inner casing in a heat-insulating material so as to hold both the right and left ends of the bottom of a container.

1 . A refrigerator which includes: a main body including an inner casing, an outer casing, and a heat-insulating material filled between the inner casing and the outer casing; a storage compartment of a pull-out type formed inside the main body and having an open front face; a pull-out door which opens and closes the open front face of the storage compartment; a partition which makes a separation for the storage compartment of the main body; and a rail device which has a fixed rail and a movable rail, is fixed to an inner wall of the inner casing with the fixed rail and the movable rail previously put together, connects the pull-out door and the main body such that a distance between the pull-out door and the main body is extendable and shortenable, and allows a container provided inside the storage compartment to move forward and backward, the refrigerator comprising
 the rail device provided on a step portion formed on each of two sides of a bottom of the storage compartment.   
     
     
         2 . The refrigerator according to  claim 1 ,
 wherein the rail device is fixed to a rail holding member having, at a lower part, an integrally formed inward inclination prevention portion which prevents the rail device from inclining inward.   
     
     
         3 . The refrigerator according to  claim 1 ,
 wherein the rail device is disposed at a gap portion provided in a side wall of the inner casing.   
     
     
         4 . The refrigerator according to  claim 1 ,
 wherein the bottom of the storage compartment is a bottom face of the inner casing.   
     
     
         5 . The refrigerator according to  claim 1 ,
 wherein the bottom of the storage compartment is a top face of the partition.   
     
     
         6 . The refrigerator according to  claim 2 ,
 wherein a plurality of the pull-out doors are vertically arranged on the refrigerator, and   an upper rail holding member and a lowermost rail holding member have different cross sectional shapes, the upper rail holding member being the rail holding member which holds the rail device which allows the pull-out door arranged at an upper position to be pulled forward and pushed backward, and the lowermost rail holding member being the rail holding member which holds the rail device which allows the pull-out door arranged at a lowermost position to be pulled forward and pushed backward.   
     
     
         7 . The refrigerator according to  claim 6 ,
 wherein the lowermost position rail holding member is a substantially L-shaped member formed along a side wall and a bottom face of the inner casing.   
     
     
         8 . The refrigerator according to  claim 2 ,
 wherein the rail holding member has a hole formed therein through which the filled heat-insulating material passes.   
     
     
         9 . The refrigerator according to  claim 1  which further includes: a door frame fixed to the pull-out door and connected to the rail device to hold the container; and a reinforcing plate which fixes the door frame to the pull-out door, the refrigerator comprising:
 the reinforcing plate vertically extending along the pull-out door and formed as a single member; 
 the door frame fixed to a lower part of the reinforcing plate; and 
 the container engaged at an upper part of the reinforcing plate. 
 
     
     
         10 . The refrigerator according to  claim 9 ,
 wherein the pull-out door includes: an inner door board; an outer door board; and a heat-insulating material that fills, by foaming, a space between the inner door board and the outer door board, and   the reinforcing plate is provided in contact with the inner door board in the space.   
     
     
         11 . The refrigerator according to  claim 10 ,
 wherein the reinforcing plate includes a reinforcing plate flange portion extending toward the outer door board.   
     
     
         12 . The refrigerator according to  claim 11 ,
 wherein the reinforcing plate flange portion includes a hole through which the heat-insulating material passes.   
     
     
         13 . The refrigerator according to  claim 9 , comprising
 a bead at a position corresponding to a part of the reinforcing plate to which the door frame is attached.