JPH06147739A - Refrigerator - Google Patents

Abstract

PURPOSE:To provide a high quality door for a refrigerator, in which the employment of new shade is permitted, cost is reduced and designedness is improved, by a method wherein the defects of a resin molded form, such as sink mark, weld line and the like which are produced on the surface of the outer plate for a door of a synthetic resin upon attaching a supporting piece and the like thereto so far, are eliminated, the degree of selectivity of the configuration of the surface plate for the door is improved and the molding of a new material (provided with aluminum foil and the like) is permitted. CONSTITUTION:An outer plate 103 for a door is provided with a retaining pawl 112 and a supporting piece 113 for contacting a door frame 104 with the inner peripheral rim of a side surface 103 by pressure to attach them thereto at the inner peripheral rim of the side surface 103' while libs and the like are not provided on the surface 103''' of the door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure having a door outer plate integrally formed of a synthetic resin of a refrigerator.

[0002]

2. Description of the Related Art In recent years, in the refrigerator, the quality of the door, which is the face of the refrigerator, has been improved from the viewpoint of comfort in daily life and the like as a part of furniture or the added value as a decorative surface.

Among them, in the heat-insulating door body composed of a door outer plate made of a synthetic resin which has an integrated and refreshing feeling,
A film or the like having the outer surface printed in a desired color is transferred by pressing it onto the outer surface heated to a predetermined temperature. Alternatively, the door outer plate was painted to have a desired color. For example, Japanese Patent Laid-Open No. 2-
The structure described in Japanese Patent No. 219975 was adopted. The conventional details will be described with reference to FIGS. 5 to 9, where 1 is a refrigerator main body and 2 is a door. 3 is a door outer plate injection-molded from a synthetic resin material, 4 is a door frame that holds the gasket 6, and 5 is a support piece having a door frame locking piece 7 provided on the surface of the door outer plate 3. 7'is a support piece provided on the side surface 3 '. Reference numeral 7 ″ is a locking claw. Reference numeral 8 is a door inner surface plate installed on the upper end surface of the door frame.
Is a foam heat insulating material filled between the door outer plate and the door inner face plate, and forms a heat insulating door body by this configuration.

[0004]

However, in the above-mentioned conventional structure, since the supporting piece for fixing the door frame is provided on the front surface side of the door outer plate as shown in FIGS. 6 and 7, the supporting piece is formed on the surface. There is a defect of the resin material in which sink marks due to resin shrinkage or the like and weld lines due to rough damage of the resin flow are generated.

Further, in order to solve these drawbacks, as shown in FIG. 5, the surface of the door outer plate is formed in an arc shape having a convex shape in the center from both ends, and is formed by the thermal transfer roller 11 such as the transfer film 10. The stress was dealt with against the pressing force and the thermal contraction after the thermal transfer processing. For this reason, there are drawbacks in terms of design and cost, such as the shape of the door outer plate being regulated and the cost of post-processing being extremely high.

The door frame is closely sealed to the side surface of the door outer plate and is sealed. However, since only the side surface seal is provided, inclination of the door frame attachment or the like is likely to occur and leakage occurs during foam filling. Alternatively, it has a drawback in assembly that it needs to be reworked.

The present invention solves the conventional problems.
It eliminates the defects of synthetic resin products such as sink marks and weld lines that appear on the surface of the door outer plate, and eliminates the need for transfer film and painting to be post-processed. Further, it is an object of the present invention to provide a refrigerator door which is excellent in assembling property without leakage of the foamed heat insulating material and which has a high design effect at a low cost.

[0008]

In order to achieve the above object, the first means of the present invention is to provide a locking claw for inserting a door frame and a supporting piece on a side peripheral portion of a door outer plate, After the door frame is inserted, the door inner surface plate is arranged on the support portion of the door frame, and the formed space is filled with the foamed heat insulating material to form the door.

The second means is to provide a hole having a diameter of 1 mm or less on the flat surface portion of the support piece formed continuously on the peripheral portion of the side surface of the door outer plate, and the end portion of the support piece with the support side of the other side surface. It has a edging structure.

[0010]

According to the present invention, in the first means having the above-mentioned constitution, since the insertion support piece (rib) such as the door frame is not required on the surface of the door outer plate, the surface side is a uniform surface made of only the base resin. As a result, there is no sink mark or weld line and it is possible to provide a door outer plate with excellent appearance quality. Further, according to this configuration, since the surface of the door outer plate having a continuous different shape can be formed from the arcuate surface, it is possible to expand the selection of the design surface according to the shape.

Further, since the door frame is inserted, fixed and sealed in the U-shaped space formed by the continuous inverted L-shaped support piece formed below the locking claws at the peripheral edge of the side surface, leakage of the foamed heat insulating material is prevented. It is possible to provide a door structure with excellent assemblability.

Furthermore, by providing a hole with a diameter of 1 mm or less on the flat surface of the support piece and bleeding air when filling the foam insulation material, it is possible to provide a heat-insulating door body having an excellent filling property.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A refrigerator according to an embodiment of the present invention will be described below with reference to FIGS. 101 is a refrigerator body, and an upper door 102, a middle door 102 ', and a lower door 10 are provided at the front opening.
2 ″ is provided. The door has the same structure and will be described below with the upper door 102. Reference numeral 103 denotes a door outer plate injection-molded by ABS or the like containing Al foil.
It is made in the shape of a container whose inner surface is opened by 3 '''.

Reference numeral 112 denotes an inner peripheral edge portion 103 "of the side surface 103 '.
The engaging claw 113 provided on the lower side is a support piece which is continuously formed in a substantially inverted L shape on the lower side thereof, and is edged with the other side surface and the end portion 113 ′, and has an engaging portion 114.

Denoted at 115 is a large number of holes having a diameter of 1 mm or less on the flat surface portion 113 "of the support piece 113. 104 is a door frame, and a groove 104" for holding a gasket 106 (not shown),
The recess 104 'corresponding to the locking claw 112 and the engaging portion 1
The claw 104 corresponding to 14 is integrally formed. As for the attachment, it is press-fitted and inserted and fixed. Reference numeral 108 denotes a door inner surface plate that covers the inner surface opening portion.

Door outer plate 103, door frame 104, and door inner face plate 10
The door 103 is made into a heat insulating structure by the foam heat insulating material 109 foam-filled in the space between 8.

With the above structure, the surface 1 of the door outer plate 103 is formed.
03 ″ ″ has no supporting piece or the like and can make the base material have a uniform thickness, so that the drawbacks of the resin molded product such as sink marks (welts) and weld lines are eliminated. Furthermore, the content rate of Al foil pieces is 1%
The use of the above ABS materials has made it possible to select new colors. Design piece on the outer surface of the door supports 11
If it is substantially lower than 3, different shapes can be selected, and the effect of design can be improved.

Further, since the door frame 104 inserted and fixed in the door outer plate 103 is fixed in position by the inner peripheral edge portion 103 "and the inner surface of the support piece 113, and is brought into surface pressure contact and sealed,
Since there is no inclination due to variations in the assembly of the door frame, and the leakage of the heat insulating material does not occur when filling the foam heat insulating material, the appearance quality is maintained.

Further, the flat portion 113 "of the support piece 113 has a hole 1
Since 15 is provided, air is vented during filling to provide a heat-insulating door structure with excellent filling properties (hole 15 diameter 1 mm
In the following, the diameter is made smaller than the foam diameter of the heat insulating cell to prevent leakage. ).

Further, the end portion 113 'of the supporting piece 113 is cut along the four corners with a length b dimension which is about twice the length a dimension of the supporting piece 113 on the other side surface, so that the supporting piece on the four side surfaces 4 side. It is possible to perform integral molding by dividing the side mold. Therefore, the side surface is reinforced by the support piece integrated with the door outer plate, and the door outer plate 103 having excellent strength can be provided.

[0021]

As is apparent from the above description, the door frame is press-fitted by the locking claws and the supporting pieces provided on the inner peripheral edge of the side surface of the door outer plate to cover the opening of the door outer plate. By providing a door with a foam insulating material filled in the space with the face plate, we provide a door body with excellent appearance that eliminates the defects of resin molded products such as sink marks and weld lines due to ribs on the surface of the door outer plate. At the same time, it is possible to provide an inexpensive door that does not require post-processing, transfer film, or painting to cover the defects of resin molded products. In addition, it is possible to enhance the design effect by expanding the shape selection of the door outer plate. Furthermore, it is possible to mold with an ABS material containing Al foil, and it is possible to select a new color.

Further, since the door frame is press-fitted and attached to the supporting piece and the inner peripheral edge of the side surface, and the supporting piece is provided with the air vent hole, a heat insulating door excellent in filling property without leakage of the foamed heat insulating material is provided. Can be provided.

In addition, since the four side surface support pieces are integrally formed on the mold by cutting the edge of the support piece with the support piece on the other side, it is possible to provide a door outer plate having a strong side surface and excellent strength. .

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

2 is a cross-sectional view showing a cross section BB of the embodiment of FIG.

FIG. 3 is a rear perspective view of a door outer plate showing an embodiment.

FIG. 4 is an external view of a refrigerator showing an embodiment.

FIG. 5 is a perspective view showing a transfer film specification of a conventional example.

FIG. 6 is a rear view of the door outer plate of the embodiment.

7 is an enlarged view of the main part A of FIG.

FIG. 8 is a sectional view of a main part of a conventional example.

FIG. 9 is an external view of a refrigerator showing a conventional example.

[Explanation of symbols]

 102 door 103 door outer plate 103 ′ side surface 103 ″ side inner peripheral edge 103 ″ ″ surface 104 door frame 104 ″ gasket insertion groove 108 door inner surface plate 109 foam insulation 112 locking claw 113 support piece 113 ′ end of support piece Part 113 ″ flat part of support piece 115 hole

Claims (4)

[Claims] 1. A container made of synthetic resin, which is integrally molded into a container shape having an inner surface opened by a surface and four side surfaces, a locking claw at a peripheral portion of the side surface, and a substantially inverted L-shaped support extending in a facing direction. A door outer plate provided with a side, a door inner surface plate covering an inner surface opening of the door outer plate, a support portion of the door inner surface plate, and a gasket insertion groove, and is inserted by the locking claw and the support piece. A refrigerator comprising a fixed door frame, a space formed by the door outer plate, the door inner face plate, and the door frame, filled with a foamed heat insulating material. 2. The refrigerator according to claim 1, wherein the surface of the outer panel of the door has a continuous different shape. 3. The refrigerator according to claim 1, wherein a large number of holes having a diameter of 1 mm or less are provided in a flat surface of a support piece continuously formed below the locking claw. 4. The end portion of the support piece provided on the peripheral portion of the side surface is
The refrigerator according to claim 1, wherein the refrigerator is cut off from the support piece on the other side.