JP2003166779A - Door structure of refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that, conventionally, a door cap 5 of a refrigerator needs to be painted almost at the center part of the door cap 5 and changed in color from both end sides at the time of a large design change of a door and if the door cap and an ornament part are constituted, enlarging of the ornament part prevents engagement of the parts since the ornament part easily falls out and that costs increase and strength decreases since the number of part items is large for a design process such as fixing small ornament parts. <P>SOLUTION: In this door body, the door cap 5 is engaged with a thin plate type door panel 4 forming a front surface of the refrigerator and an edge part 4a of the door panel. A door cap cover 6 is integrally fixed almost over the door width so as to cover almost all the part of the door cap 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure such as a door hinge of a refrigerator.

[0002]

2. Description of the Related Art FIG. 10 is a perspective view showing a conventional refrigerator door, and FIG. 11 is a sectional view showing the refrigerator door. In the figure, 3 is an upper door of a refrigerator, a door panel 4 having both ends bent backward, a door cap 5 fitted to cover the upper end surface, and a lower door cap 7 fitted to the lower end. The inner plate 8 of the upper door 3 is provided on the rear side to form the upper door shell 3a. Reference numeral 9 is a foamed heat insulating material filled inside the upper door shell 3a.

In order to improve the design of the door, a concave portion 13 is provided on the front side of the central portion of the door cap 5, and a decorative component 13a such as a plated component or potting is fitted so as to fit in the concave portion. The mounting structure of this decorative component 14 is such that
4 claws 14a are fitted.

Further, the recess 13 is not formed in the central portion of the door cap, but the parts are printed by hot stamping or the like to improve the appearance, or the entire door cap 5 is subjected to a coating treatment to improve the design. Some increase.

Although the front surface of the door cap cover is not painted, a technique in which the finger hook portion and the fitting portion of the door cap are composed of a second component is disclosed in Japanese Patent Laid-Open No. 01-1.
It is disclosed in Japanese Patent No. 18087.

Further, although the fitting structure is different, a technique of a refrigerator door with a decorative member, in which a door cap is provided with a plurality of claw pieces and a plurality of claw piece receiving portions, and fitted inside the door cap, is disclosed in Japanese Patent Laid-Open No. 04- It is disclosed in Japanese Patent Publication No. 190079.

[0007]

In the conventional refrigerator door structure, when a large change in the door design is required, it is necessary to paint most of the central portion of the door cap and change the color of both ends. With the configuration of the door cap and the decorative component, there is a problem in fitting the door cap and the decorative component because the decorative component is likely to come off even if the decorative component is made large. In addition, since the strength of the door cap itself is weakened, in the worst case, the refrigerator door may drop off.

Further, if the door cap is used as a single part for masking and painting on both sides, masking work on a curved surface becomes difficult to maintain quality, and most of the work is manual work, resulting in high cost. There was a problem of becoming. That is, there is a problem that mass productivity is poor and mass production cannot be performed.

The present invention eliminates such problems,
The purpose of the present invention is not to increase the cost, to improve the design of the door cap and also to increase the strength, and to satisfy high design requirements.

[0010]

A door structure for a refrigerator according to the present invention comprises a thin plate-like door panel on the front of the refrigerator and a door body provided with a door cap fitted to an edge portion of the door panel. The door cap cover is integrally mounted over almost the entire width of the door so as to cover the cap.

Further, in the door structure of the refrigerator according to the present invention, the mating structure of the door cap and the door cap cover is formed by a curved surface so as to have a lap structure.

Further, in the refrigerator door structure of the present invention, the door panel insertion groove is provided in the entire width of the door cap cover that covers most of it and in the portion of the door cap that is not covered by the door cap cover.

In the refrigerator door structure of the present invention, a fixing hole for joining with the door cap cover is provided on the top surface of the door cap.

Also, the door structure of the refrigerator of the present invention is configured by alternately disposing and fitting the door cap and the claws having a shape different from that of the door cap cover.

Further, the refrigerator door structure of the present invention is provided with a concave portion on the entire top surface of the door cap in the longitudinal direction.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. The first embodiment of the present invention will be described below with reference to FIGS. 1 to 9. Figure 1
Is a front view of the refrigerator of the present invention, FIG. 2 is a perspective view showing the upper door of the present invention, FIG. 3 is a cross-sectional view of a main part of the upper door, and FIG.
FIG. 5 is an enlarged cross-sectional view of the main part of FIG. In the figure, reference numeral 1 denotes a refrigerator main body, the front surface of which is closed by a lower door 2 and an upper door 3. Reference numeral 4 denotes a door panel of this upper door, both end portions 4a of which are bent rearward, and which are mounted so as to cover the upper end surface thereof and the door cap 5 so as to cover the upper central portion from the front direction, and A painted door cap cover 6 is provided. The door cap cover 6 has a basic cross section,
Is covered in a U-shape by the top face, the front face and the rear face rib 6a, and the door panel 4 is inserted into the door panel insertion groove 6b over the entire width of the end face of the front face, so that the structure is hard to shift in the front-rear direction.

Reference numeral 7 denotes a lower door cap provided so as to cover the lower end portion of the upper door 3. Reference numeral 8 is an inner plate of the upper door 3, and 9 is a foamed heat insulating material filled between the door panel 4 and the inner plate 8. Reference numeral 10 is an important notch provided at one end of the door cap 5 and forms a hinge recess 11 for axially supporting the upper door 3.

As shown in FIG. 4, the mating structure of the door cap cover 6 and the door cap 5 on the design surface is not a butt structure but a curved lap structure. The door cap cover end surface 6c covers the design surface end surface 5a of the door cap 5, and has a lap structure in which a gap is provided between the door cap cover end surface A6d and the design surface end surface 5a. Both the door cap 5 and the door cap cover 6 have a length of ± 0.5 in the entire width direction, which is the longitudinal direction, when molding with a mold.
There is a risk of variation of about mm, and if the mating structure is abutting structure, a large gap may occur between the door cap cover 6 and the door cap 5 due to the variation in length during molding, and the door cap cover 6 may Door cap 5
However, since this wrap structure takes these into consideration, it can be easily assembled even if the length varies a little in the entire width direction, and the structure does not look like a gap.

Further, the door cap cover 6 is provided with a door panel insertion groove 6b in the entire width of the front surface, and further, a portion of the door cap 5 which is not covered by the door cap cover 6 is provided with a door panel insertion groove 5b on the door cap 5 side. And both are fitted. Therefore, in the door cap cover 6, the front lower end surface 6e does not float above the door panel 4, and the design surface lower end surface 5c of the door cap 5 also does not float above the door panel 4.

Next, the detailed structure of the door cap 5 will be described. The door cap 5 has a structure in which both end portions on the design surface side, exposed portions on the rear surface side, and an inner shape hidden by the door cap cover 6 are integrally formed in a bag shape over the entire width of the door, and the door cap 5 alone has high strength. Therefore, the strength of the important portion 10 of the door cap 5 and the recessed portion 11 for the hinge can be maintained against the stress when the door is opened and closed. Also, since the door cap cover 6 is attached to the door cap 5,
Further strengthening strength.

Further, there is a concave shape 5d on the entire top surface of the door cap 5 in the longitudinal direction, and the strength of torsion is increased in the entire width direction and the front-back direction. The inner plate 8 is engaged with the inner plate engaging surface 5e on the back surface of the door cap 5.
There are four screw holes 5f for the inner plate 8 in e, where they are connected by screws (not shown). In order to prevent the screw hole 5f and the inner plate engaging surface 5e from being deformed by the torque of the screw, the screw plate reinforcing protrusion 5g is thick in the front-rear direction on the back side of the portion of the inner plate engaging surface 5e where the screw hole 5f is provided. Therefore, there is a protrusion 5g for reinforcing the screw plate on the inner plate engaging surface 5e.

Originally, in consideration of the strength and the mold structure, the screw plate reinforcing projection 5g is thick in the front-rear direction.
It is in the entire vertical direction from the part with f to the top surface, and the projection 5g for reinforcing the screw plate is the back side inner plate engaging surface 31.
And a sink mark occurs on the back surface 51 above it. This sink is
If it is within the range of the inner plate engaging surface 5e, it can be hidden if the inner plate 8 is engaged, but the back surface 51 above it can be visually confirmed, which is a design problem. Therefore, it is necessary to remove the sink marks at the time of forming the parts by performing the meat slimming 5h.

As shown in FIG. 9, normally, the mold of the meat slime 5h has a long dimension M1 and is easily broken in terms of strength, but since the concave shape 5d on the top surface causes the dimension M2.
Therefore, the concave shape 5d is effective over the entire width in the longitudinal direction on the top surface in terms of mold strength.

Next, a detailed fitting structure of the door cap 5 and the door cap cover 6 will be described. The door cap 5 has first claw pieces 5i protruding forward and bent at six places on the end surface on the front curved surface side, and fitted with the first claw piece receiving portion 6e of the door cap cover 6 provided at the corresponding position. I am fit. As a result, the door cap 5 and the door cap cover 6 are fixed in the front-rear direction.

There are six rearwardly projecting second claw pieces 6f on the front side of the front side of the door cap cover 6 and a second curved piece side receiving notch 5j on the front curved surface side of the door cap 5 at a position corresponding thereto. It is fitted. As a result, the door cap 5 and the door cap cover 6 are vertically fixed.

As shown in FIG. 8, the door cap cover 6
The second claw piece 6f of the first claw piece 6f extends over the entire width of the door cap cover 6 at substantially equal intervals above the first claw piece receiving portion 6e, so that the second claw piece 6f does not rattle. Is fixed all over.

Further, regarding the positions of the first claw piece receiving portion 6e and the second claw piece 6f of the door cap cover 6, it is necessary to consider the mold structure. Due to the structure of the door cap cover 6, the claws of the first claw piece receiving portion 6e and the second claw piece 6f are
Each slide piece 6g must be accommodated in the entire core die. At that time, by bringing the first claw piece receiving portion 6e and the second claw piece 6f close to each other, the slide piece 6g
Can be common.

Since there are six second claw pieces 6f each, the number of tops 6g is six. If the gap between the first claw piece receiving portion 6e and the second claw piece 6f is arranged to be large, the frame 6
The number of g is 12, and the number is large and each piece is 6
Since the g is small, both the strength of the slide piece 6g and the overall strength of the core mold are deteriorated, the mass may be damaged in mass production, and the mold cost will be increased. . Therefore, the first claw piece receiving portion 6e and the second claw piece 6f are arranged with a small interval, and
Both the claw piece receiving portion 6e and the second claw piece 6f correspond to each other by a common slide piece 6g.

Further, the third forwardly projecting third claw piece 6h on the rear rib of the door cap cover 6 is fitted to the third claw piece receiving portion 5k on the rear surface of the door cap 5 at the corresponding position. As a result, the door cap 5 and the door cap cover 6 are also fixed in the vertical direction on the back surface.

The door cap 5 and the door cap cover 6 are fixed in the front-rear direction and the up-down direction by the basic cross-sectional shape and the above-mentioned three kinds and 17 pieces of the first claw piece 5i, the second claw piece 6f, and the third claw piece 6h. It has a structure. In the left-right direction, the three types of 17 pieces of the first claw piece 5i, the second claw piece 6f, the third claw piece 6h width, the first claw piece receiving portion 6e, the second claw piece receiving notch 5j, It is controlled with a slight clearance with respect to the width of the third claw piece receiving portion 5k, and has a structure in consideration of the variation in length (± 0.5 mm) at the time of molding with a mold in the entire width direction. Therefore, the assembly becomes easy. After assembly, the width direction is also fixed by the frictional force between the surfaces of the door cap 5 and the door cap cover 6, and as described below, the foam insulation after foaming and the door cap 5 and the door cap cover 6 are completely connected. Fixed to.

Next, at the four holes 12 on the top surface of the door cap 5, the foam insulation material 9 is leaked from the door cap 5 to the rear side of the top surface of the door cap cover 6 at the time of foaming, so that the door cap cover 6 is foamed and insulated. The door cap 5 and the door cap cover 6 are bonded to each other by being bonded to the material 9 and become stronger, and the door cap 5 and the door cap cover 6 are also bonded in the width direction. Therefore, when the door is opened and closed, it goes without saying that the door cap 5 does not rattle.

Further, since there is a notch 5j for receiving the second claw piece on the front surface of the door cap 5, it is a portion corresponding to the notch 5j for receiving the second claw piece on the back side of the front side of the door cap cover 6. By leaking the foam heat insulating material 9 to the lower portion of the second claw piece 6f during foaming, the door cap cover 6 adheres to the foam heat insulating material 9 and the bond between the door cap 5 and the door cap cover 6 becomes stronger.

[0033]

The refrigerator door structure of the present invention comprises a thin plate-like door panel on the front of the refrigerator and a door body provided with a door cap fitted to the edge of the door panel. The door cap is covered with the door cap. Since the door cap cover is integrally mounted almost over the entire width of the door, it is possible to easily color-code with the door cap by painting the entire surface of the door cap cover, and a door with a beautiful appearance can be manufactured at low cost. Further, by plating the door cap cover, it is possible to make the design more highly attractive, and there is an effect that there is no fear of damaging the door cap when opening and closing the door.

Further, in the refrigerator door structure of the present invention, since the mating structure of the door cap and the door cap cover is all curved and lapped, the door cap and the door cap cover are in the longitudinal direction. Even if the length varies during molding with a metal mold, the assembly can be easily performed, and a structure in which no gap is visible between the door cap and the door cap cover can be obtained.

Further, since the door structure of the refrigerator of the present invention is constructed such that the door panel insertion groove is provided in the entire width of the door cap cover that covers most of it and the portion of the door cap not covered by the door cap cover, The lower end surface of the front surface of the door cap cover and the lower end surface of the design surface of the door cap have an effect of not rising from the door panel.

Further, in the refrigerator door structure of the present invention, the door cap top surface is provided with the fixing hole for joining with the door cap cover. By joining with the cover, the door cap and the door cap cover are more firmly joined together, and the door cap and the door cap cover can be securely joined together even in the width direction.

Further, since the door structure of the refrigerator of the present invention is constructed by alternately arranging and fitting the door cap and the claw having a shape different from that of the door cap cover, the length at the time of molding in the full width direction can be improved. It has a structure that takes into account the variation of the height, and the assembly becomes easy.

Further, since the refrigerator door structure of the present invention has a structure in which a concave portion is provided in the entire width in the longitudinal direction on the top surface of the door cap, the strength of the door cap in the entire width direction, the front-back direction, and the twist is increased. In addition, the mold of the slimy meat can be shortened, and the strength of the mold can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing a door structure of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of the door structure of the refrigerator according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a main part of the refrigerator door structure according to the first embodiment of the present invention.

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

FIG. 5 is an exploded enlarged perspective view showing the door structure of the refrigerator according to the first embodiment of the present invention.

FIG. 6 is an exploded perspective view showing the door structure of the refrigerator according to the first embodiment of the present invention.

7 is a cross-sectional view showing the main parts of FIG.

FIG. 8 is a rear exploded perspective view showing a main part of the door structure of the refrigerator according to the first embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a main part of the refrigerator door structure according to the first embodiment of the present invention.

FIG. 10 is a perspective view showing a conventional refrigerator door structure.

FIG. 11 is an enlarged cross-sectional view showing a conventional refrigerator door structure.

[Explanation of symbols]

1 Refrigerator, 2 Lower door, 3 Upper door, 4 Door panel, 5 Door cap, 5a Design surface end surface, 5b Door cap side door panel insertion groove, 5c Design surface lower end surface, 5
d concave shape, 5e inner plate engaging surface, 5f screw hole in inner plate engaging surface, 5g screw plate reinforcing protrusion, 5h slim fit, 5
i 1st claw piece, 5j 2nd claw receiving notch, 5k 3rd
Claw piece receiving part, 6 door cap cover, 6a rear cover, 6b door panel insertion groove, 6c door cap cover end face, 6d door cap cover end face A, 6e first claw piece receiving part, 6f second claw piece, 6g piece, 6h 3rd claw piece, 8 inner plate, 9 foam insulation material, 10 important notch, 1
1 recess for the elbow, 12 top hole.

Claims (6)

[Claims] 1. A thin plate-like door panel in front of a refrigerator and a door body provided with a door cap fitted to an edge portion of the door panel, wherein the door cap cover covers substantially the entire width of the door so as to cover the door cap. The refrigerator door structure is characterized in that it is integrally mounted with. 2. The door structure for a refrigerator according to claim 1, wherein the mating structure of the door cap and the door cap cover has a curved surface and is entirely lapped. 3. The door panel insertion groove is provided in the entire width of the door cap cover that covers most of the door cap and the portion of the door cap not covered by the door cap cover. Refrigerator door structure. 4. The door structure of a refrigerator according to claim 1, wherein a fixing hole for joining with the door cap cover is provided on the top surface of the door cap. 5. The door cap and the claw having a different shape from the door cap cover are alternately arranged and fitted to each other. Refrigerator door structure. 6. The recessed portion is provided on the entire top surface of the door cap in the longitudinal direction, and the recessed portion is provided.
The refrigerator door structure according to claim 3, 4, or 5.