JPS5856544Y2 - refrigerator door body - Google Patents

Description

[Detailed description of the invention] This invention relates to an insulating door body provided on the front of a refrigerator.
This invention relates to an improvement of a door body in which the foamed heat insulating material filled between the outer and inner panels of the door is integrally foamed.

Generally, in the case of such an integrally foamed heat insulating door body, it goes without saying that an injection port for injecting the foamed heat insulating material must be bored in one of the door structures.

However, since the door body is thin, there is no injection space compared to the refrigerator's insulation box body, in other words, there is no space for inserting the injection nozzle, making it easier to position the injection nozzle and fill the insulation material. It is not possible,
Moreover, the injection port was inevitably exposed on the outside of the door outer panel or the door inner panel, making the product extremely unsightly.

The present invention has been developed to overcome these drawbacks.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Reference numeral 1 denotes a door body of the refrigerator, which is made up of a door outer panel 2, a door inner panel 3, and a foamed heat insulating material 4 that is integrally foamed and filled between the two panels 2 and 3.

The door inner plate 3 is made of synthetic resin, and has continuous bulges 3a, 3b, and 3C on the left, right, and bottom sides that are integrally formed by vacuum forming.

Reference numeral 5 denotes a frame-shaped gasket that adheres to the front opening edge of the refrigerator, and is provided on the outer periphery of the back surface of the door body 1.

The above-mentioned plates 2, 3 and gasket 5 are as shown in FIG.
The base 5' of the gasket 5 is interposed between the flange 2' of the door outer plate 2 and the flange 3' of the door inner plate 3, and the two plates 2 are tightened with the female screw 6.
, 3 are assembled to form a sealed space A between both plates 2 and 3.

On the other hand, a support hole 8 for inserting and supporting the shelf support plate 7 is bored inside the bulges 3a and 3b, and a heat insulating material 4 is formed in the bulges 3a and 3b facing the hole 8. A heat insulating material 9 such as glass wool is interposed to prevent leakage.

Further, a protruding portion 3d having a width approximately equal to the length of the hole 8 in the longitudinal direction is integrally formed at a portion immediately behind the hole 8 of the left bulging portion 3a, at a substantially right angle from the bulging portion 3a.

This protrusion 3d extends in a direction perpendicular to the shelf support plate 7 until it reaches the back wall surface of the door inner plate 3.

Furthermore, an injection port 10 for injecting the heat insulating material 4 through a nozzle (not shown) is provided on the surface of the protrusion 3a facing the shelf support plate 7.

Therefore, the door body 1 has an outer panel 2, an inner panel 3, and a gasket 5.
are each fixed to form a closed space A, and after being supported by a foaming fixing jig, the heat insulating material 4 is injected into this space A through the injection port 10.

The heat insulating material 4 then foams and fills the space A.

At this time, since the support hole 8 is covered with the glass wool heat insulating material 9, there is no leakage, and air is also vented through the heat insulating material 9.

After filling the heat insulating material 4, the shelf support plate 7 is attached to the bulge portion 3a.

When inserted into the hole 8 of 3b, the injection port 10 is covered by the support plate 7 and is not exposed to the outside.

Note that 11 is a leakage prevention tape provided on the injection port 10, but it is not necessarily necessary because the injection port 10 is not exposed from the outside due to the support plate 7.

The insulating material 4 is injected not in a thin part of the door body 1, but in a thick part using the bulging part 3a, making it easy to position the injection nozzle. Because it flows, a smooth flow can be obtained.

As is clear from the above explanation, the refrigerator door body according to the present invention includes an outer door panel, an inner door panel with left and right bulges forming the shelf, and an integrally foamed foam plate between these panels. A shelf support plate is bridged between the left and right bulges,
A protruding portion having an injection port for injecting the heat insulating material is formed on the right rear portion of the shelf support plate by integrally extending one protruding portion for a predetermined length in a direction perpendicular to the shelf support plate. Therefore, since the injection port is not exposed to the outside by the shelf support plate, there is no need to separately cover the injection port, the appearance is improved, and the bulging part can position the nozzle when injecting the insulation material with the injection nozzle. Since the heat insulating material also flows from the wide part, it flows smoothly throughout the interior, resulting in a door body with good heat insulation properties.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a refrigerator door according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line ll-Tl' in FIG. 2...Door outer panel, 3...Door inner panel, 3a
, 3 b...Bulging part, 4... Heat insulating material, 7... Shelf support plate, 10... Inlet.

Claims (1)

[Scope of utility model registration request] Consisting of a door outer plate, a door inner plate forming left and right bulges forming a shelf, and a heat insulating material integrally foamed between these drawing boards, a shelf support plate is bridged between the left and right bulges, A refrigerator door body formed by forming a protruding part with an inlet for injecting the heat insulating material immediately behind the shelf support plate and extending a predetermined length in a direction perpendicular to the shelf support plate integrally with one of the protruding parts. .