JPS6032860Y2 - electric refrigerator door - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a frame structure of an electric refrigerator door.

Various proposals have been made for refrigerator doors, but for example, as shown in Figure 1, three wedge-shaped cuts 2 are provided in one continuous rod-shaped body 1 made by extrusion molding, and the lower frame is cut in order from the left in the figure. 3A, right frame 3B.

A method is known in which a door frame is constructed by shaping the upper frame 3c and the left side frame 3D and sequentially bending them at right angles using a bending machine.

According to this, it is relatively easy to assemble, but since it has a uniform frame-like shape and the mouth pieces are the same color, it is difficult to assemble it in terms of design. I can't.

Therefore, an object of the present invention is to provide a door for an electric refrigerator that can be varied in design and is easy to assemble.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 2 and 3, the door according to the present invention has an upper frame 11A, a lower frame 11B, and left and right side frames 12.
A and 12B are provided as a framework, and an exterior panel 13 made of a painted steel plate is attached to this framework.

In this case, the upper frame 11A, the lower frame 11B1, and the right frame 12A
and the left frame 12B are the same in their symmetrical arrangement, so the following describes the upper frame 11A and the left frame 1.
2B will be explained.

Referring to FIGS. 4 and 6, the upper frame 11A includes an outer flange 14 formed in a curtain shape from its front edge to both side edges, and an outer flange 14 formed at a predetermined interval on the inner circumferential side of the outer flange 14. The upper edge of the exterior panel 13 is inserted into the engagement groove formed between these inner flanges 15.

In this case, the inner flange 15 is provided with a plurality of longitudinal ribs 16 that protrude toward the outer flange 14.

Therefore, the exterior panel 1 is placed between the flanges 14 and 15.
3, its upper edge will tightly abut against the inner wall surface of the outer flange 14 by means of the longitudinal ribs 16.

Further, a back plate 1 formed in a hanging shape is provided at the rear of the upper frame 11A.
7 is provided.

This back plate 17 has a retaining head 19 of a door gasket 18.
A mounting groove 20 into which the upper frame 11A is fitted extends along the longitudinal direction of the upper frame 11A.

In addition, according to FIG. 6, the end of the back plate 17 is a hypotenuse part 21 having an angle of 45 degrees with respect to the virtual horizontal plane,
A tongue portion 22 is formed on this oblique side portion 21 and extends in a stepped manner.

Further, the mounting groove 20 is formed at the end of the back plate 17 so as to be bent downward at a right angle so as to connect with an engagement groove 28 of a side frame, which will be described later.

As shown in FIGS. 5 and 6, the left side frame 12B consists of a rod-shaped body whose bottom is shaped by an extruded bottom and has an approximately L-square cross section, and corresponds to the back plate 17 of the upper frame 11A. Back plate 2
3, a side plate 24 attached at right angles to this back plate 23, and an upper frame 11A extending parallel to this side plate 24.
The inner plate 25 is formed to have an inverted cross-section so as to fit the outer wall surface of the inner flange 15 of the inner plate 25.

The side plate 24 and the inner plate 25 form an engagement groove 26 into which the side end of the exterior panel 13 is inserted.

In this case, the outer wall of the inner plate 25 is provided with a vertical rib 27 that is formed to protrude outward to the same extent or slightly wider than the groove width of the engagement groove 26 .

Therefore, the side portion of the exterior panel 13 is strongly brought into contact with the inner wall surface of the side plate 24 due to the elastic restoring force using the vertical rib 27 as a fulcrum.

The back plate 23 is formed with a mounting groove 28 similar to the mounting groove 20 of the back plate 17 explained in FIG. It is opened so as to connect to the engagement groove 20 at the portion.

Further, at the end of the back plate 23, a tapered part 2 formed at an angle of 6 degrees so as to come into contact with the oblique side part 21 of the back plate 17.
9 is provided.

Note that the door gasket 18 is a well-known one, but to briefly explain it, it consists of a rubber strip body disposed along the framework of the door, and includes a retaining head 19 with an arrow-shaped cross section, and a joint head 19 inside. A buffer section 31 having an air layer 30, and a flexible rod-shaped magnet 32 embedded within this buffer section 31.
and a flange cover 3 stretched laterally from the buffer section 31.
3.

This door is assembled as follows.

The exterior panel 13 is made of a painted steel plate that is bent into a substantially U-shape, and each of the bent side edges of the exterior panel 13 is inserted into the engagement groove 26 of the right side frame 12A and left side frame 12B. Insert.

The upper frame 11A and the lower frame 11B are attached to cover this from above and below.

As a result, the upper and lower edges of the exterior panel 13 are each inserted between the outer flange 14 and the inner flange 15 of the upper frame 11A and the lower frame 11B, and are tightly attached therebetween by the vertical ribs 16.

Along with this, the respective ends of the side plate 24 and the inner plate 25 of the side frame are also arranged between the outer flange 14 and the inner flange 15, and the tapered part 29 of the back plate 23 is aligned with the oblique side of the back plate 17. 21.

When the framework is configured in this way, the side end portions of the exterior panel 13 are brought into close contact with the inner wall surface of the engagement groove 26 due to the elastic restoring force using the vertical ribs 27 of the inner plate 25 as fulcrums, and
Since the mounting groove 20 of the back plate 17 and the mounting groove 28 of the back plate 23 are connected at each end, there is no mounting groove 1 on the back side of the framework.
A series of mounting grooves for mounting the door gasket are formed consisting of 20.20 and 28.28.

Then, by adding an appropriate jig (not shown) to the back of this framework, the upper and lower frames 11A are assembled.

A heat insulating material 34 is formed by foaming a foamable synthetic resin in the space formed by the 11B1 side frames 12A, 12B and the exterior panel 13.

In this case, the exterior panel 13 and each frame and each frame are tightly connected, and a tongue portion 22 is interposed between the oblique side portion 21 of the back plate 17 and the tapered portion 29 of the back plate 23. This prevents foamed resin from leaking from these joints.

Thereafter, the interior panel 35 is arranged so as to cover the heat insulating material 34, and is fixed to each back plate 17 and the rod-shaped body with screws, and the door gasket 18 is inserted into the mounting groove 20 with its engaging head 19. and 28 in order to attach it around the back side of the door.

Note that the screw heads for fixing the interior panel 35 are covered by the flange 33 of the door gasket 18.

As is clear from the description of the above embodiments, according to this invention, the upper frame 11A, the lower frame 11B, the side frames 12A,
By providing the ribs 16 and 27 in relation to each retaining groove of 12B, each frame and the exterior can be connected by simply inserting the end of the exterior panel 13 without bending the insertion end. The panels can be assembled with good airtightness to prevent foamed resin from leaking.

Therefore, it is possible to improve the assembly workability, and since extreme bending is not required, even when a painted steel plate is used, it can be processed relatively easily.

In addition, the upper and lower frames 11A, IIB and the side frames 12A, 12B can be made in different colors, and the width of the side plate 24 exposed in a band shape on the side wall of the door can be changed to create a variety of door designs. can be transformed into

In addition, in the above embodiment, the rib 16 is provided on the inner flange 15 side, but in some cases, the rib 16 is provided on the outer flange 14 side.
It may be provided on the inner surface side.

[Brief explanation of the drawing]

Figure 1 is an expanded view of the conventional door frame, Figure 2 is a perspective view of the door according to the present invention, Figure 3 is a rear view of the door frame, and Figure 4 is the same as Figure 2. 5 is a sectional view taken along the line IV-IV of FIG. 2, and FIG.
The figure is a perspective view for explaining the connection state between the upper frame and the side frame. In the figure, IIA is the upper frame, 11B is the lower frame, and 12A. 12B is the side frame, 13 is the exterior panel, 17.23 is the back plate,
18 is a gasket, 20.28 is a second gasket installation
mounting groove, 2 is the oblique side, 22 is the tongue piece, 24 is the side plate, 25
26 is an inner plate, 26 is a first engagement groove, and 27 is a rib.

Claims (1)

[Scope of utility model registration request] In the door of the refrigerator, in which a side frame is attached to each of both ends of an exterior panel whose both ends are bent at a substantially right angle, and an upper frame and a lower frame are attached to the side frames, each of the side frames is a side plate; and an inner plate extending parallel to the side plate and forming a first engagement groove between which the end of the exterior panel is inserted; The door has a wall projecting forward, and the wall has a rib that acts as a fulcrum to elastically press the end of the exterior panel toward the inner surface of the side plate. Each of the upper frame and the lower frame has an outer flange and an inner flange that are arranged parallel to each other and form a second engagement groove between which the upper edge or the lower edge of the exterior panel is inserted. and a rib having an inclined surface in the second engagement groove for guiding the end of the exterior panel so that it comes into close contact with the inner surface of the outer flange or the inner flange when the exterior panel is inserted into the groove. The door of the refrigerator is characterized by its shape.