JPH09264660A - Double hinged door for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical means to simultaneously satisfy a fact that dew is hardly condensed at the side edges, positioned facing each other, of the double hinged door of a refrigerator and a fact that sealing ability is improved. SOLUTION: A gap between side edges positioned facing each other when right and left doors 1B and 1A are closed is sealed with an astragal 7 arranged in a jutting out state at the chamber side of the side edge part of the left door 1A and having heat insulation ability, a first packing 9 arranged facing the astragal and on the chamber side of the side edge part of the right door 1B, and a second packing 11 mounted on the outside of the chamber of the side edge part of the right door 1B. A tape 8 made of a soft synthetic resin is affixed on the surface part, making contact with the first packing 9, of the astragal 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled refrigerator,
The present invention relates to a double door such as a freezer, a storage, and a cool storage. In this specification, the term "refrigerator" used in other than this paragraph includes a refrigerator, a storage cabinet, a cold storage cabinet, and the like in addition to the refrigerator.

[0002]

2. Description of the Related Art As a conventional double door of a refrigerator, for example, as shown in FIG. 3, when both doors (101A, 101B) are closed, the gap between the opposite side edges is the same as that of both doors (101A, 101B). Some of them were sealed by rubber fin-like packings (102) attached to the insides of the opposite side edges of the container.

[0003]

However, in the case of the double door of the conventional refrigerator described above, when the both doors (101A, 101B) are closed, the gap between the opposite side edges is a pair of fin-like packings (102). ), The packing (10
The temperature difference between the inside and outside of 2) is very large, and the outside of the packing (102) and both doors (101A, 101A,
There was a problem that dew condensation is likely to occur on the opposite side edge of 101B). On the other hand, the pair of fin-like packings (102) alone do not necessarily have sufficient sealing performance, but the use of a seal having a better sealing performance further aggravates the above-mentioned problem of dew condensation.

Means for solving these problems include:
In the past, a heater with excellent sealing performance was used, and at the same time, a heater was attached to the opposite side edge of both doors where dew condensation occurs, but the manufacturing cost and operating cost of the heater are very high, which is economical. There was a problem in that it was not relevant.

The present invention has been made in view of the above-mentioned problems, and simultaneously satisfies both the point that dew condensation is unlikely to occur at the opposite side edges of the double doors of the refrigerator and the point that the sealability is improved. The challenge is to provide economical means.

[0006]

In order to solve the above-mentioned problems, in the double door of the refrigerator according to the present invention, when the both doors are closed, the gap between the opposite side edges is the same as the side edge of one door. At least one of a ruler edge that is provided inside the refrigerator and has heat insulating properties, and a first packing that is attached to the inside of the refrigerator on the side edge portion of the other door that faces the ruler edge, and the opposite edge portions of both doors. It is supposed to be sealed by the second packing attached to either one of the outside of the refrigerator.

As described above, the gap between the opposite side edges when both doors are closed is sealed by the two seals on the inside and inside of the refrigerator, thereby forming a sealed space in the gap.
Since the temperature gradually increases in the order of the inside of the storage, the above-mentioned closed space, and the outside of the storage, dew condensation is unlikely to occur on the opposite side edge portions of both doors. Moreover, since the inside of the refrigerator is sealed with the heat insulating ruler edge and the first packing and the outside of the refrigerator is sealed with the second packing, the sealing performance is remarkably improved as compared with the prior art at the beginning.

In the double door of the refrigerator according to the present invention, it is preferable that a soft synthetic resin layer is formed on a surface portion of the ruler edge which is in contact with the first packing.
Examples of the soft synthetic resin include foamed ETP.

As described above, by forming the soft synthetic resin layer on the predetermined surface portion of the ruler edge, the adhesion between the first packing and the ruler edge is improved, so that the sealing property can be further improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. In the following description, “left and right” means the left and right in FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the double doors of the assembled refrigerator are composed of a pair of left and right doors (1A, 1B).
(1A, 1B) are a pair of aluminum alloy face plates inside and outside the refrigerator
(2,3) and a rectangular frame made of soft synthetic resin interposed between the peripheral edges of both surface plates (2,3) and the space surrounded by both surface plates (2,3) and the rectangular frame. And a heat insulating material (5) such as foamed polyurethane filled therein.

The side frame member (4) facing the other door of the rectangular frame includes a first vertical wall portion (4a) extending to the left and right and a second vertical wall portion (4a) extending from one side edge thereof toward the outside of the door. 4b) and has a substantially L-shaped cross section. A pair of projecting walls extending toward the inside of the refrigerator are formed at a little distance at the tip edge portion of the first vertical wall portion (4a), and the pair of projecting walls and the first vertical wall located between them. The folded edge (21) of the inside surface plate (2) is fitted into the groove (41) formed by the wall (4a). Also, the first vertical wall portion (4a) of the side frame member (4)
A concave groove (42) opened toward the inside of the refrigerator is formed in the middle part of the width of the container by bending the part in a U shape. Further, a concave groove (43) opening toward the other door is formed at the tip edge portion of the second vertical wall portion (4b) of the side frame member (4) by bending the same portion in a U shape. And the folded edge (31) of the outside surface plate (3) in the groove (43).
Is fitted.

Inside the first vertical wall portion (4a) of the side frame member (4) of the left door (1A), a spacer (6) made of wood or the like is used,
The ruler edge (7) has two doors (1A, 1A)
When B) is closed, first the side frame member (4) of the right door (1B)
It is attached by a screw (not shown) so as to face the vertical wall portion (4a). The ruler edge (7) is, for example, the inner side surface and left and right side surfaces of a foamed polyurethane board with a high expansion ratio are covered with aluminum alloy plates,
The outer surface of the storage is covered with a neoprene rubber plate. In addition, on the right side of the inside surface of the ruler edge (7), foam ET
A tape (8) made of P is attached. This tape (8)
As a result, the first packing () described later and the ruler edge (7) are brought into close contact with each other. As an example of the size of the ruler edge (7), its width is about 100 mm and its thickness is about 20 mm.

Inside the first vertical wall portion (4a) of the side frame member (4) of the right door (1B), a first packing (9) made of, for example, vinyl chloride resin is attached. There is. The first packing (9) has two hollow cylindrical seal parts (9a) on the left and right.
And a connecting portion (9b) having a substantially U-shaped cross section, which connects both seal portions (9a) and is fitted into the groove (42) of the first vertical wall portion (4a) of the side frame member (4). The pipe-shaped stopper (10) is tightly fitted in the storage-side concave groove portion of the connecting portion (9b) fitted in the concave groove (42), and the stopper (10) and the connecting portion are
(9b) is fastened and fixed to the first vertical wall portion (4a) with a screw or the like (not shown).

The second side frame member (4) of the right door (1B)
A second packing (11) made of, for example, vinyl chloride resin is attached to a portion of the vertical wall portion (4b) near the outside of the refrigerator. The second packing (11) is the second packing of the side frame member (4).
A vertical plate-shaped mounting part (11a) that is mounted to the vertical wall part (4a) with screws or the like (not shown), and extends from the inside edge of the mounting part (11a) toward the left diagonal rear side and its leading edge. When the two doors (1A, 1B) are closed, the cross section that can come into close contact with the second vertical wall part (4b) of the side frame member (4) of the left door (1A) is approximately a quarter arc shape. 1 seal part (11b), and a substantially vertical plate-like covering part (11c) extending from the outer side edge of the mounting part (11a) to the right and covering the left side edge of the outer side surface plate (3) , The left edge of the attachment part (11a) extends from the outer edge of the refrigerator and the leading edge of both doors (1A,
When 1B) is closed, it comprises a second sealing part (11d) which is slightly bent inward so that it can be brought into close contact with the right side edge of the outside surface plate (3) of the left door (1B).

According to the double door of the refrigerator having the above structure, the following operational effects are obtained. That is, as shown in FIG. 1, when both doors (1A, 1B) are closed, the gap between the opposite side edges is such that the surface of the tape (8) on the outside of the ruler edge (7) and the first packing. The left and right seal parts (9a) of (9) are closely attached, and the first and second seal parts (11b, 11d) of the second packing (11) are attached to the side frame member (4) of the left door (1A). ) Second
The vertical wall (4b) and the right side edge of the outside surface plate (3) are in close contact with each other and sealed at two locations inside and outside the refrigerator, forming a closed space (X) in the same space. Then, the temperature gradually increases in the order of the inside of the storage, the closed space (X), and the outside of the storage, so that dew condensation does not easily occur on the opposite side edge portions of both doors (1A, 1B). Moreover, the sealability is remarkably improved as compared with the prior art at the beginning of this document.

In general, in the case of a double door, the smaller the vertical and horizontal dimensions of each door, the more noticeable the inclination to the left and right, but in the case of the prior art at the beginning of this document, the fin-like packing (102) is a double door.
Since the doors (101A, 101B) are attached to the inside of the opposite side edges, the door (101A, 101B) has a problem that the left and right inclinations when viewed from the outside are very noticeable (Fig. 3). In the double door, the covering portion (11c) of the second packing (11) covers the left edge portion of the outside surface plate (3) of the right door (1B) and the second sealing portion. Since (11d) is closely attached to the right edge of the outside surface plate (3) of the left door (1A) to cover the same part, the door (1A, 1A,
The left and right tilts of 1B) are less noticeable, and the work of finely adjusting the tilt is also unnecessary.

[0018]

According to the double door of the refrigerator of the present invention,
When the both doors are closed, the gap between the opposite side edges is sealed with a ruler edge having heat insulating property and the first packing on the inside of the refrigerator, and is sealed with the second packing on the outside of the refrigerator,
Condensation occurs on the opposite side edges of both doors by forming a closed space in the same space and gradually increasing the temperature in the inside, the closed space, and the outside in order. In addition to being difficult to do, the sealability can be significantly improved as compared with the prior art at the beginning of this document.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and is an enlarged horizontal cross-sectional view of essential parts showing a closed state of a double door of a refrigerator.

FIG. 2 is an enlarged horizontal cross-sectional view of essential parts showing a state in which one of the double doors of the refrigerator is open.

FIG. 3 is an enlarged horizontal cross-sectional view of essential parts showing a double door of a conventional refrigerator.

[Explanation of symbols]

 (1A) ... Left door (1B) ... Right door (7) ... Ruler edge (8) ... Foamed ETP tape (soft synthetic resin layer) (9) ... 1st packing (11) ... 2nd packing

Claims (2)

[Claims] 1. A gap between opposing side edges when both doors (1A, 1B) are closed is provided inside the side edge of one of the doors (1A) in a box-like shape and has a heat insulating property. Of the ruler edge (7) and the side edge of the other door (1B) facing it, the first packing (9) attached to the inside of the compartment and the opposite side edge of both doors (1A, 1B) A double door of a refrigerator that is sealed by at least one of the second packings (11) attached to the outside of the refrigerator. 2. The double door of the refrigerator according to claim 1, wherein a soft synthetic resin layer (8) is formed on a surface portion of the ruler edge (7) which is in contact with the first packing (9).