JPS6298181A - Manufacture of door for refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

In this specification, refrigerators include not only those that store things at low temperatures, but also so-called freezers that freeze and store things.

Conventional technology and its problems As shown in Fig. 6, this type of door is a door that is opened in a heat insulating wall panel (43) that partitions the inside (41) and outside (42) of a refrigerator (not shown). It is known to be erected at an entrance/exit (44) made of a heat insulating panel. In other words, refrigerator 17ij (45) has a pair of front and back sides (7) and 11 (46
) (47) g, pair (7) l ffi (46)
(47) and a plastic frame member (48) that connects them together, and then a heat insulating material (49) such as urethane foam is placed between the pair of thin plates (46) and (47). It is made by injection foaming. The material for the thin plates (46) and (47) is selected from aluminum, steel, stainless steel, etc. depending on the purpose, and the color and surface finish are standardized for each material. Therefore, if a user requests something that does not meet the standards and attempts are made to comply with the request, problems such as delayed delivery and high costs will occur. Many of the user's requests are particularly related to color, and it is conceivable to paint the surface of the heat insulating panel after manufacturing it. In this case, since the heat insulating material is sensitive to heat, baking painting cannot be performed and painting is limited to room temperature painting, but room temperature painting poses a problem in the durability of the coating film.

An object of the present invention is to provide a method for manufacturing refrigerator/freezer doors that can easily meet user requirements such as color for the door surface.

Means for Solving the Problems In the method of manufacturing a door for a refrigerator 1 according to the present invention, a door body made of a heat insulating panel and a plurality of decorative panels each exhibiting mutually different colors or patterns are made separately, and the surface of the door body is One of the decorative panels is stacked on top of the other, and the periphery of the decorative panel is fixed to the door body with a push edge.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.

As shown in Figures 1 and 2, the refrigerator door consists of a rectangular door body (1), a rectangular decorative board (2) of approximately the same size, and a rectangular frame-shaped rim (3). It consists of.

As shown in detail in Figure 3, the door body (1) has almost the same structure as the conventional door mentioned at the beginning, and includes a pair of front and back plates (4) and (5), and a frame member (6). ) and insulation (
7), and each of these materials is the same as the conventional one. The pair of thin plates (4) and (5) are generally flat as a whole, and the thin plate (4) on the front side is the thin plate (5) on the back side.
Although it is slightly larger than the above, there is an inwardly bent protrusion (8) on the periphery of the former thin plate (4), with reference to the inside and outside of the refrigerator.
On the peripheral edge of the latter thin plate (5) there is an outwardly bent ridge (9).
is provided. The frame member (6) has a thin plate (5) on the back side.
) through steps and inner surface b (crocodile padskin (1
0) is attached to the vertical wall (11), and the vertical wall (11) where the vertical wall (11) is attached.
1) Lower horizontal wall (12) extending outward from the lower end
and an upper horizontal wall (13) extending inward from the upper end of the vertical wall (11). An outward groove (14) is formed at the tip of the lower horizontal wall (12), into which an inward bent ridge (8) is fitted, and an inward groove (14) is formed at the tip of the upper horizontal wall (13). 15) into which an outwardly bent flange (9) is fitted.

The decorative board (2) is attached to the door body (as shown in detail in Figure 3).
It is of a size that can be overlapped with the surface of 1) to cover the entire surface thereof, and its material is the same as that of thin plates (4) and (5). The surface has been subjected to necessary surface treatments such as painting.

In addition to the illustrated decorative board (2), a plurality of decorative boards (2) with mutually different colors or patterns are prepared.

As shown in detail in Figure 3, the rim (3) has a cross-sectional shape and is a decorative board (2) that is fitted onto the door body (1).
The front wall (16) and the front wall (16
) and a side wall (17) extending inward from the outer periphery of the door body (1). It is made by bending it, or by assembling four L-shaped members of appropriate size into a square, welding the four corners, and integrating them into a frame shape.

Next, the steps for manufacturing the door will be explained. Door body (1)
are made using the same procedure as traditional doors. In addition, a decorative board (2) is made by a different procedure. Then, attach double-sided adhesive tape (not shown) or apply adhesive to the surface of the door body (1), and apply a decorative board (2) on top of it.
) on top of each other, then press the edge (3) on top of the decorative board (2).
), and screw the screw (18) into the lower horizontal wall (12) of the frame member (6) at an appropriate location through the side wall (17) of the rim (3) to secure the rim (3) to the door. Fix it to the main body (1).

FIG. 4 shows a modification of the rim. The ridge (3) shown in Figures 1 and 2 has an annular shape with a uniform width when viewed from the front, but the ridge (31) shown in Figure 4 has an annular shape with rounded corners. It shows.

FIG. 5 shows yet another modification of the rim. The two types of ridges (3031) described above are both formed integrally, but the ridge (32) according to this modification is composed of four L-shaped pieces (33) (34) of two types with different lengths. ) and four corner fittings (35). The length of the two L-shaped pieces (33) (34) is the door body (1)
or slightly shorter than the long and short sides of the rectangle formed by the decorative board (2). Each corner fitting (35) has the same square cross section as the L-shaped piece and is square when viewed from the front;
Four L-shaped pieces (33) (34) are attached to the decorative board (2) and the door body (1).
4) is fixed to the door body (1) with the opposing ends pressed against each other from above and from the outside.

Effects of the Invention According to this invention, a decorative board exhibiting a color or pattern desired by the user can be selected from among a plurality of decorative boards and fixed to the surface of the door body, thereby reducing delivery time and cost. It becomes easier to respond to user requests without causing problems.

Also, since the door body and decorative panel are made separately,
Even though the door body is made of a heat insulating panel, the decorative panel can be painted by baking.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of the refrigerator, FIG. 2 is a front view of the refrigerator, FIG. 3 is an enlarged cross-sectional view of the same portion, and FIG. FIG. 5 is a partially exploded perspective view showing another modification of the rim, and FIG. 6 is a sectional view corresponding to FIG. 3 showing a conventional refrigerator. (1)... Door body, (2)... Decorative board, (3) (3
1) (32)... Pressed edges. Figure 1 Figure 2 Figure 4 Figure 3 Figure 5 Figure N6

Claims (1)

[Claims] A door body (1) made of an insulating panel and a plurality of decorative laminates (2) exhibiting mutually different colors or patterns are made separately, and any one of the decorative laminates (2) is stacked on the surface of the door body (1). Align the periphery of the same decorative board (2) with the pressed edge (3) to the door body (
1) Method for manufacturing a refrigerator door that is fixed.