JPH0473580A - Refrigerator door - Google Patents

Abstract

PURPOSE:To provide a door with little increase in weight thereof without losing clearance by simultaneously laminating and fixing a plurality of transparent plastic plates in a tightly closed space between transparent glass plates inside and outside the door through a laminating/fixing plate. CONSTITUTION:Transparent glass plates 1 are disposed on the inside and outside of a door, and a transparent plastic plate 2 comprises a material such as acryl, polycarbonate, stylene, and ABS, etc. A plurality of the transparent plastic plates 2 are spaced away between the transparent glass plates 1 inside and outside the door. A laminate fixing frame 3 laminates and fixes via an interval adjusting spacer 4 the plurality of the end edges of the transparent glass 1 and the transparent plastic plates 2 both being plate-shaped structures. A tightly closed space 5 is a space between the transparent glass plate 1 and the transparent plastic plate 2 and serves as a heat insulating layer. The transparent plastic plate 2 has a specific gravity of 1.0-1.4, and the transparent glass plate 1 2.2-3.7, whereby the door can be made light-weight.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a door body of a refrigerator.

2. Description of the Related Art In the door body of a conventional refrigerator, for example, a door body made of a glass plate that allows the inside of the refrigerator to be seen through is
There is a publication No. 9724. An example of a door body to which a glass plate is applied in this manner is shown in FIG. 2 below.

In Fig. 2, 1 is a transparent glass plate, 3 is a laminated fixed frame,
Reference numeral 4 denotes a spacer for adjusting the interval, and a plurality of transparent glass plates 1 are stacked and provided on the MN'J fixing frame 3 via the spacer 4 for adjusting the interval. In this door body, a plurality of sealed spaces 5 formed between the stacked transparent glass plates 1 are formed as a heat insulating layer. Reference numeral 6 denotes an outer plate, which is provided on the outside of the transparent glass plate, is brought into contact with the laminated fixing frame 3, and has a cutout hole 7 in the center to serve as a transparent part. Reference numeral 8 denotes an inner plate, which, like the outer plate 6, has a cutout hole 9.

A decorative frame 10 is arranged so as to surround the outer periphery of the outer panel 6 and the inner panel 8. Reference numeral 11 denotes a foamed urethane heat insulating material that covers the outer panel 6, inner panel 8, and decorative frame IO except for the sealed space 5.
and the laminated fixing frame 3. I2 is a gasket for sealing inside the refrigerator.

Problems to be Solved by the Invention However, with a door body that allows the inside of the refrigerator to be seen through,
In order to improve the heat insulation performance of the door body, it is necessary to increase the number of transparent glass plates l and spacers 4 for adjusting the distance, thereby increasing the heat insulation layer for the closed space. The problem is that the weight of the door increases significantly, making it inconvenient to open and close the door, and placing an excessive load on the door support.

In order to solve the above-mentioned conventional problems, the present invention creates a door body that does not lose its transparency even if the number of heat insulating layers required to improve its heat insulation performance is increased, and that increases the weight of the door body with a small amount. is intended to provide.

Means for Solving the Problems In order to achieve the above object, the present invention provides a laminated fixing frame for stacking and fixing the edge portions of plate-like bodies via spacers, and a stacked fixing frame for stacking and fixing the edge portions of plate-like bodies on the outside and inside of the door body as the plate-like bodies. A transparent glass plate provided, a plurality of transparent plastic plates laminated with smoothness between the transparent glass plates, and an outer plate and an inner plate provided at the outer edge of the transparent glass plate and having a notch hole in the center. A refrigerator comprising: a decorative frame that surrounds the outer periphery of the outer panel and the inner panel; and a foamed urethane insulation material filled in a space constituted by the decorative frame, the outer panel, the inner panel, and the laminated fixing frame. It was used as a door body.

Function Since the present invention has the above-described configuration, by simultaneously laminating and fixing a plurality of transparent plastic plates in the sealed space between the inner and outer transparent glass plates of the door body using the laminated fixing plate, only the transparent glass base can be fixed. This makes it possible to suppress an increase in the weight of the door body compared to the case of lamination.

Moreover, the transparency of the door body body is not lost due to the plastic plates, and the heat insulating layer can be increased by the plurality of sealed spaces provided between the transparent plastic plates, thereby enhancing the heat insulating performance.

EXAMPLE Hereinafter, a door body of a refrigerator which is an example of the present invention will be described with reference to FIG.

1 is a transparent glass plate arranged on the inside and outside of the door body. 2 is a transparent plastic plate made of materials such as acrylic, polycarbonate, styrene, and ABS.
A plurality of transparent glass plates l are arranged at intervals between the inside and outside of the door body.

Reference numeral 3 denotes a laminated fixing frame, in which edge portions of a plurality of transparent glass plates 1 and transparent plastic plates 2 as plate-like bodies are laminated and fixed via spacers 4 for weekly adjustment. 5 is a closed space,
The space created between the transparent glass plate I and the transparent plastic plate 2 serves as a heat insulating layer. Reference numeral 6 denotes an outer plate which abuts against the laminated fixing frame 3, is provided at the outer edge of the transparent glass plate 1, and has a notch hole 7 in the center.

Reference numeral 8 denotes an inner plate, which, like the outer plate 6, is provided on the outer edge of a transparent glass plate and has a cutout hole 9 in the center. One end of the inner plate 8 is in contact with the transparent glass plate l, the other end is in contact with the decorative frame,
The central notch hole 7.9 is a transparent part. IO is a decorative frame that is in contact with the outer periphery of the outer panel 6 and the inner panel 8. II
is a foamed urethane insulation material, and the outer panel 6, inner panel 8, and decorative frame 10
and the laminated fixing frame 3 is filled.

A gasket I2 is brought into contact with the inner plate 8 and the decorative frame 10, and is capable of sealing the door body inside the refrigerator.

Since this embodiment is constructed as described above, the specific gravity of the transparent plastic plate 2 is 1.0-1.4, while the specific gravity of the transparent glass plate 1 is 2.2-37, When a multilayer structure of three or more layers is required, it is possible to significantly reduce the weight of the door body rather than constructing it with only the transparent glass plate 1.

In addition, since the inner and outer layers of the door body are made of transparent glass plates 1, moisture that enters the sealed space 5 from the outside is prevented.
The dew point in the sealed space 5 does not change for a long period of time, and dew condensation can be prevented.

In addition, since it is easier to color the transparent plastic plate 2, disperse metal powder, and make the liquid crystal etc. into a sandwich compared to the transparent glass plate 1, it is possible to create a variety of designs for the transparent door body. Moreover, it has the advantage of being easy to process.

Effects of the Invention As described above, in the present invention, a plurality of plastic plates can be laminated easily and simultaneously using a lamination fixing frame in order to provide a large number of sealed spaces as heat insulating layers.

Since the specific gravity of the transparent plastic plate is 1.0 to 1.4 and the specific gravity of the transparent glass plate is 2.2 to 3.7, when a multilayer structure of three or more layers is required, the transparent glass plate This has the effect that the door body can be made much lighter than if it were constructed from only one piece, and the door of the refrigerator can be opened and closed easily, and there is no need to place an excessive load on the part that supports the door body.

Furthermore, since the outer and inner layers of the door body are made of transparent glass plates, it is possible to block moisture from entering the sealed space from the outside, and the dew point inside the sealed space does not change for a long period of time, preventing dew condensation. This has the effect of preventing this and maintaining the long-term reliability of the insulation performance.

In addition, we can color transparent plastic plates, disperse metal powder, and make liquid crystals into sand germination.
Since it is simpler than a transparent glass plate, it has the effect that the transparent door body can easily be designed in a variety of ways.

[Brief explanation of the drawing]

FIG. 1 is an enlarged sectional view of a main part of a door body of a refrigerator showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a main part of a door body of a refrigerator showing a conventional example.

Claims (1)

[Claims] A stacking fixing frame that stacks and fixes the edge portions of the plate-like bodies via spacers, transparent glass plates provided as the plate-like bodies on the outside and inside of the door body, and a spacer between the transparent glass plates. A plurality of laminated transparent plastic plates, an outer plate and an inner plate provided on the outer edge of the transparent glass plate and having a notch hole in the center, a decorative frame surrounding the outer periphery of the outer plate and the inner plate, and A door body for a refrigerator comprising a decorative frame, a foamed urethane heat insulating material filled in a space constituted by a decorative frame, an outer panel, an inner panel, and a laminated fixed frame.