JPH07294106A - Refrigerator door - Google Patents

Abstract

PURPOSE:To prevent an expandable heat insulation material from leaking from the inside of a door, and prevent cold air from leaking from the inside of a refrigerator by improving an adhesiveness between a door outer surface plate and a door inner surface plate both constituting a drawable door of the refrigerator. CONSTITUTION:A drawable door 13 comprises a door outer surface plate 22 including a flange 28 at rear ends of four sides of the upper and lower and the left and right of the door, a door inner surface plate 23 where a flange 28 of the door outer surface 22 is brought into close contact with a peripheral edge thereof, a door reinforcing plate 24 provided inside the former members and between the left and right of the same and including on the rear part thereof a supporter for supporting an upper peripheral edge of a container, an expandable heat insulation material 25 filled between the door outer surface plate 22 and the door inner surface plate 23, and a gasket mounted on a U-shaped groove 29 provided in a frame shape in the door inner surface plate. There is further provided a recess 31 corresponding to the width and thickness of the door reinforcing plate 24 at a predetermined location of the flange 28 of the door outer surface plate 22 for improving the close contact between the door outer surface plate 22 of the door 13 and the door inner surface plate 23, the outer surfaces of the flange 18 and the door reinforcing plate 24 being made flat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a drawer type door of a refrigerator.

[0002]

2. Description of the Related Art In a refrigerator, for example, drawer type doors 13, 14 are provided at front opening portions of a freezer compartment 8 and a vegetable compartment 9 as shown in FIG.
Some have 15. These are all shown in FIG. 2 and FIG.
A box-shaped door outer surface plate 22 as shown in FIG. 2, a door inner surface plate (also referred to as a door back) 23, and a door reinforcing plate 24 provided between them.
And the foam insulation 25 filled inside and the gasket 26
The door reinforcing plate 24 is provided with a support 19 for detachably supporting the container 16 as shown in FIG. Figure 5
Is a cross-sectional view showing the relationship between the door outer surface plate 22, the door reinforcing plate 24, and the door inner surface plate 23.At the rear end of the door outer surface plate 22, there is a flange 28 extending inward. Door reinforcement plate on the outside 24
The edge of the door reinforcing plate 24 is overlapped with the peripheral edge of the door inner surface plate 23, and the foam insulating material 25 is filled between the door outer surface plate 22 and the door inner surface plate 23 to form the desired door 13. It is supposed to do. A U-shaped groove 29 for mounting the gasket 26 is provided inside the peripheral edge of the door inner surface plate 23, and a fin 30 for increasing the contact area with the foaming heat insulating material 25 is integrally formed on the door reinforcing plate 24. It is provided.

[0003]

However, no fastening parts such as screws are used for fixing the door outer surface plate 22, the door reinforcing plate 24, and the door inner surface plate 23 to the door 13, and each of them has foaming heat insulation. Since the structure depends on the adhesion strength with the material 25, it is difficult to position the door reinforcing plate 24 and the door inner surface plate 23 with respect to the door outer surface plate 22, and the door reinforcing plate 24 and the door inner surface plate 23 may be displaced from each other. The installation of requires the adjustment to maintain the parallelism of the door, and also has the drawback of being weak in twist strength and not being able to withstand heavy loads, and the flange 28 of the door outer surface plate 22 and the door inner surface plate 23 of Since the door reinforcing plate 24 is sandwiched between the peripheral portion, the door inner surface plate 23 is partially raised,
As a result, the close contact between the front flange of the heat insulating box 1 and the gasket 26 may be deteriorated, and the foamed heat insulating material 25 may leak through the gap formed between the door reinforcing plate 24 and the door inner surface plate 23. Therefore, an object of the present invention is to provide a refrigerator door that does not cause these problems.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a door outer surface plate having a flange extending inwardly from the rear ends of the four sides of the upper, lower, left and right sides, and the flange. Door inner face plate having a frame-shaped U-shaped groove inside the peripheral edge portion that closely adheres to the outer surface of the door, a gasket attached to the U-shaped groove, and front and rear of left and right side end portions provided between the door outer face plate and the door inner face plate. The door outer plate and the door inner plate, the door outer plate and the door inner plate are attached to the flange of the door outer plate and the peripheral edge of the door inner plate, and a support for supporting the upper peripheral edge of the container is attached to the rear center part. In the case of a foaming heat insulating material or the like filled between the face plates, the flange of the door outer face plate to which the left and right side end portions of the door reinforcing plate closely contact each other is provided with a recess corresponding to the width and thickness of the door reinforcing plate.

[0005]

With the above construction, since the flange of the door outer surface plate has a recess corresponding to the width and thickness of the door reinforcing plate, the door outer surface plate and the door reinforcing plate can be easily positioned and the door outer surface plate can be easily positioned. Since the outer surface of the flange and the surface of the door reinforcing plate can be made flat, deformation (deformation) of the peripheral edge of the door inner surface plate can be prevented, and the adhesion between the gasket and the front flange of the heat insulation box can be improved. Can be increased.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view showing the internal structure of the refrigerator, and 1 is an outer box 2 made of steel plate, an inner box 3 made of resin,
A heat-insulating box body including a foamable heat insulating material 4. The inside (inner box 3) of this heat-insulating box 1 is divided into an upper refrigerating room 7, a middle freezing room 8 and a lower vegetable room 9 by partitions 5 and 6, and a front opening of the freezing room 8 is formed. The part is provided with a partition body 10 that divides the opening into upper and lower parts. Although not shown, a cooler for generating cold air, a blower and a duct for circulating the cool air to the respective compartments 7, 8, 9 are arranged on the back side of the freezing compartment 8, and the base at the lower rear portion of the heat insulating box 1 is arranged. A compressor 11 is arranged above. The door 12 of the refrigerating compartment 7 is pivotally supported so that the upper and lower sides of the refrigerating compartment 7 can be opened and closed because the refrigerating compartment 7 is at the top, but the doors 13 and 14 of the freezing compartment 8 and the door 15 of the vegetable compartment 9 are both drawer type. At the rear, U-shaped supports 19, 20, and 21 that detachably support the containers 16, 17, and 18 are provided.

The door 13 will be described below as an example. The door 13 is a box-shaped door outer surface plate 22 as shown in FIGS. 2 and 3, a door inner surface plate (also referred to as a door back) 23, a door reinforcing plate 24 provided between them, and the inside thereof is filled. Further, the door reinforcing plate 24 is provided with a plurality of screw holes 27 for attaching the support body 19 on the left and right sides, which are composed of the foaming heat insulating material 25, the gasket 26 and the like. There are flanges 28 extending inward at the rear ends of the upper, lower, left and right sides of the door outer surface plate 22, and the door reinforcing plates 24 are provided on the outer surfaces of the left and right flanges 28.
Both sides are overlapped, and the peripheral edge portion of the door inner surface plate 23 is overlapped on the both sides. FIG. 4 is a cross-sectional view showing the relationship between the door outer surface plate 22, the door reinforcing plate 24, and the door inner surface plate 23. A foaming heat insulating material 25 is filled between the door outer surface plate 22 and the door inner surface plate 23. A U-shaped groove 29 for mounting the gasket 26 is provided inside the peripheral edge of the door inner surface plate 23, and a fin 30 for increasing the contact area with the foaming heat insulating material 25 is integrally formed on the door reinforcing plate 24. It is provided. By the way, as shown in FIG. 4, the feature of the present embodiment is that the flange 28 of the door outer surface plate 22 to which the left and right side end portions of the door reinforcing plate 24 closely contact each other has a recess corresponding to the width and thickness of the door reinforcing plate 24. 31 is provided. This recess 31 is a door outer plate
By eliminating the step formed when the door reinforcing plate 24 is superposed on the flange 28 of 22, the deformation of the peripheral portion of the door inner surface plate 23 is eliminated.

[0008]

With the door constructed as described above, the door outer surface plate and the door reinforcing plate can be easily positioned, and the flange of the door outer surface plate and the outer surface of the door reinforcing plate are flat. As a result, the peripheral edge of the door inner surface plate is not deformed, and the adhesion between the gasket and the front flange of the heat insulating box is improved, so that there is no fear of cold air leakage and the quality of the refrigerator is improved.

[Brief description of drawings]

FIG. 1 is a side sectional view of a refrigerator according to the present invention and a conventional example.

FIG. 2 is a rear perspective view of a refrigerator door according to the present invention and a conventional example.

FIG. 3 is a rear internal perspective view of a refrigerator door according to the present invention and a conventional example.

FIG. 4 is an enlarged cross-sectional view of a main part of a refrigerator door showing an embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a main part of a refrigerator door showing a conventional example.

[Explanation of symbols]

 1 Insulation Box 8 Freezer 13 Door 16 Container 19 Support 22 Door Outer Plate 23 Door Inner Plate (Door Back) 24 Door Reinforcement Plate 25 Foam Insulation 26 Gasket 28 Flange 29 U-shaped Groove 30 Fin 31 Recess

Claims (1)

[Claims] 1. A door outer surface plate having a flange extending inwardly from the rear ends of the upper, lower, left and right sides, and a door inner surface plate having a frame-shaped U-shaped groove inside a peripheral edge portion closely contacting the outer surface of the flange. A gasket attached to the U-shaped groove, and provided between the door outer surface plate and the door inner surface plate so that the front and rear of the left and right side ends are closely attached to the flange of the door outer surface plate and the peripheral portion of the door inner surface plate, and the rear center A door reinforcing plate configured to mount a support member for supporting the upper peripheral edge of the container to the portion, and a foaming heat insulating material filled between the door outer surface plate and the door inner surface plate, the left and right sides of the door reinforcing plate. A door of a refrigerator, characterized in that a flange corresponding to a width and a thickness of a door reinforcing plate is provided on a flange of a door outer surface plate to which side edges are closely attached.