JPH031080A - Door for storage case - Google Patents

Abstract

PURPOSE:To reduce the allowance of wrapping between the front plate of a cover unit by a method wherein a projected part is provided on the back surface of the end of the front plate, which is wrapped by the cover unit, while an engaging unit, engaging elastically with the projected part of the front plate, is provided on a rib provided so as to pinch the front plate between a decorative body projectingly toward the direction of the cover unit. CONSTITUTION:The lower rim of a front plate 14 is positioned so as to be inserted between a cover unit 16 and a rib 17 so as to be pinched between the cover unit 16 since the back surface of the same is pushed by an abutting part 17a formed on the rib 17. A cut-and-raised projection 14a is provided on the back surface of the front plate 14 while an engaging part 18, engaging elastically with the projection 14a, is provided projectingly on the rib 17 of the decorative frame body 15. The projected part 14a is provided so as to be contracted with the end 14a of the front plate 14 whereby a dimension (a) may be nulified. The aggravation of appearance of a door 12 due to a sink in thickness may be prevented while the thickness of the cover unit 16 may be thinned at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a storage door having a synthetic resin decorative frame attached to the peripheral edge of a front plate constituting the front surface of the door.

(Prior Art) The door of a storage unit, such as a refrigerator, is constructed by filling a thin rectangular box-shaped outer shell with a heat insulating material. In recent years, the outer shell of such a door has been constructed by attaching decorative frames 2, 2 made of synthetic resin to a front plate 1 made of steel plate that constitutes the front surface of the door, as shown in FIG. There is a flood of things. In this case, the front plate 1 constitutes the front surface and both left and right sides of the door, and the decorative frames 2, 2 constitute both the upper and lower sides of the door.

A conventional structure for attaching the decorative frame 2 to the front panel 1 as described above is shown in FIGS. 6 and 7.

That is, two rectangular fitting holes 1a (see FIG. 5) are formed in each of the upper and lower edges of the front plate 1.

In this case, as shown in FIG.
at a position approximately 3 mm away from the end 1b (dimension a is approximately 3 m).
- m) is provided, and the height direction dimension of the hole is approximately 4 mm.
It becomes. On the other hand, as shown in FIG. 7, the decorative frame 2 includes a cover part 3 that rises from the periphery of the plate part 2a and wraps around the front surface of the front plate 1, and a cover part 3 that is located inside the cover part 3. The portion 3 and a rib 4 rising in parallel are integrally formed. Engagement protrusions 3a are integrally provided on the back side of the cover portion 3 in correspondence with the fitting holes 1a of the front plate 1. As shown in FIG. 6, the front plate 1 is arranged such that the edge part is sandwiched between the cover part 3 and the rib 4 of the decorative frame body 2, so that the engaging protrusion 3a of the cover part 3 fits into the fitting hole 1a.
It is installed in a way that prevents it from coming out. In this case, in order to prevent corrosion due to moisture infiltration through the fitting hole 1a of the front plate 1, the front plate 1 is covered by a cover portion 3 up to about 3 mm above the fitting hole 1a (dimension C is 3 mm). In addition, at this time, as described above, in the conventional structure, the total overlap distance d (see FIG. 6) between the cover portion 3 and the front plate 1 is 10 mm. That was it. Therefore, even if an attempt is made to change the design of the cover portion 3 to improve the appearance, the fitting hole 1a is provided at a position a predetermined distance a from the end portion 1b of the front plate 1, which reduces the overall wrap distance d. Due to the restriction of dimensions requiring at least 1Qmm, it was not possible to create a design in which the wrap allowance was smaller than that, which was one of the design constraints.

In addition, since the engaging protrusion 3a is integrally formed on the back surface of the cover part 3, there is a possibility that so-called fill marks may occur on the front surface of the cover part 3, deteriorating the appearance of the surface of the decorative frame body 2.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to reduce the amount of overlap between the cover portion and the front plate, thereby reducing design constraints, and reducing the appearance of the decorative frame body due to sink marks. The purpose is to provide a storage door that can prevent deterioration.

[Structure of the Invention] (Means for Solving the Problems) The storage door of the present invention includes a front plate constituting the front surface of the door, and is attached to the periphery of the front plate and wraps around the front surface of the periphery of the front plate. A decorative frame body made of synthetic resin that integrally has a cover part is provided, a protrusion is provided on the back side of the end of the front plate wrapped in the cover part, and the front plate is sandwiched between the decorative frame body and parallel to the cover part. The present invention is characterized in that a rib is formed on the rib, and an engaging portion that elastically engages with a protrusion at the end of the front plate is provided on the rib in a protruding direction toward the cover portion.

(Function) According to the above means, a protrusion can be formed at the end of the front plate, and the engaging part provided on the rib engages with this protrusion, so that the chemical frame body is attached to the front plate. Installed. In this case, the engagement hole is not provided in the front plate at a predetermined distance from the end of the front plate, but the protrusion can be provided in contact with the end of the front plate, so the wrap area of the cover can be used as a subunit. It becomes possible to make it smaller. In addition, since the ribs are located on the back side of the front plate and are not visible from the outside, even if the ribs have sink marks due to the formation of the engaging portions, the appearance will not deteriorate.

(Example) The following is an example in which the present invention is applied to a refrigerator door.
This will be explained with reference to FIGS. 1 to 4.

FIG. 4 shows the whole refrigerator, and a refrigerator 112 according to this embodiment is provided on the front of the refrigerator main body 11 so as to open and close each chamber.

Although not shown in detail, the door 12 has a thin rectangular box-shaped outer shell 13 with an open back side filled with a heat insulating material, and a chamber for the refrigerator main body 11 on the back side of the outer shell 13. A sealing member for sealing, an inner plate having a pocket for storing bottles, etc. are provided. The outer shell body 13 is the door 1
A decorative frame body 15.15 made of synthetic resin is attached to the peripheral edge of a front plate 14 made of steel plate constituting the front surface of 2,
In this case, the front plate 14 forms the front surface and both left and right sides of the door 12, and the decorative frames 15 and 15 form grooves on each of the upper and lower sides of the door 12.

Here, the structure of the outer shell 13, particularly the attachment of the decorative frame 15 to the front plate 14, will be described with reference to FIGS. 1 to 3. Incidentally, since the structure of attachment to the front plate 14 is the same for both the upper and lower decorative frames 15 and 15, the lower edge side of the front plate 14 will be described here.

The decorative frame body 15 integrally has a cover part 16 that rises from the periphery at a --like height except for the back side of a bottom plate part 15a that is horizontally long and has a generally rectangular plate shape with rounded corners. Among these, the bottom plate part 15a constitutes the lower surface of the door 12, and the cover part 16 wraps around the underlined front surface of the front plate 14.

Further, this decorative frame body 15 is integrally formed with a rib 17 located inside the cover part 16 and rising from the bottom plate part 15a in parallel with the cover part 16. The front plate 1
4 is located such that its lower edge is inserted between the cover portion 16 and the rib 17, and the pressure contact portion 1 formed on the rib 17 is
The back surface is pressed by 7a so that it is sandwiched between it and the cover part 16.

Now, a protrusion 14g is provided on the rear surface of the front plate 14 by cutting and raising, and the protrusion 14a is provided on the rib 17 of the decorative frame 15.
An engaging portion 18 that elastically engages is provided in a protruding manner. A plurality of protrusions 14a, for example two protrusions, are provided on the end portion 14b of the lower edge portion of the front plate 14 wrapped by the cover portion 16. In this case, as shown in FIG. It is formed by forming a notch 14c extending laterally at the lower edge of the holder, and punching out the lower portion of the notch 14c in a triangular shape toward the back side. In this example, the notch 14c was formed at a position 4 mm from the end 14b (
In Figure 1, dimension e is 4 mm). - On the other hand, the engaging portion 18 is integrally provided at a position corresponding to the protruding portion 14a of the rib 17 and protrudes toward the cover portion 16, and as shown in FIG. The lower end 11j18b has a shape (horizontal) extending substantially perpendicular to the rising direction of the rib 17. Further, the engaging portion 18 is formed such that a lower end surface 18b is located 4 mm above the upper surface of the bottom plate portion 15a. 1
Reference numeral 9 denotes a notch hole portion formed in the rib 17, which is located below the engaging portion 18 in the rib 17 and extends laterally.

As shown in FIG. 3, the decorative frame 15 configured as described above is constructed by fitting the lower edge of the front plate 14 between the cover part 16 and the rib 17 from above. 14. At this time, the protrusion 14a of the front plate 14 is
By pressing the engaging portion 18 of the rib 17, the upper part of the notch hole 19 of the rib 17 is elastically deformed as shown by the two-dot chain line in FIG. As a result, as shown in FIG.
The upper end of the engaging portion 18 is engaged with the lower end surface 18b of the engaging portion 18, and thus the front plate 14 and the decorative frame 15 are fixed to each other in a manner that prevents them from coming off. Thereafter, the outer shell 13 is filled with a heat insulating material, and then an inner plate and the like are attached to form the door 12.

At this time, in order to prevent corrosion from the notch 14c of the front plate 14, the cover portion 16 of the decorative frame 15 covers up to about 3 mm above the notch 14c as in the past (
In Figure 1, the dimension f is 3 mm).

Therefore, the wrap width g of the cover portion 16 is 7 mm.

Furthermore, since the wall thickness of the rib 17 is thinner than that of the cover portion 16, a so-called fill sink occurs on the back surface of the rib 17 due to the formation of the engaging portion 18. It becomes the inner surface of the door 12 and does not appear on the exterior of the door 12.

According to this embodiment, since the protrusion 14a is provided in contact with the end 14b of the front plate 14, the front plate 1
Unlike the conventional configuration in which a fitting hole 1a is provided at a position spaced apart by a dimension aM from the end portion 1b of the fitting hole 1a, and the engagement protrusion 3a8 is fitted into the fitting hole 1a, the dimension a can be set to zero, so to speak. Therefore, the wrap allowance dimension g of the cover part 16 is only 7 mm, and compared to the conventional case where there was a dimensional restriction that required the wrap allowance dimension 71 d to be 10 mm or more, the two dimensions of the present application are smaller at 7 mm, and the cover part 16 The design constraints are relaxed and the degree of design freedom increases. Then, an engaging protrusion 3a is provided on the back surface of the cover portion 3.
Unlike the conventional one in which the cover part 16 is provided, there is no unsightly so-called flesh sink on the front surface of the decorative frame body 15, and it is possible to prevent deterioration of the appearance of the door 12 due to the flesh sink. 16 can also be made thinner. Furthermore, in this embodiment, since the protrusion 14a is formed by cutting and raising the front plate 14, the protrusion can be formed easily and inexpensively compared to, for example, forming the protrusion by welding a separate member. can. In addition, since the notch hole 19 is formed in the rib 17, the rib 17 is easily elastically deformed when the protrusion 14a and the engaging portion 18 are engaged with each other, thereby facilitating the installation work. Furthermore, there is an advantage that the amount of deflection and engagement strength of the rib 17 can be adjusted by appropriately changing the size, for example, the width dimension of the notch hole 19.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be applied not only to refrigerators but also to general storages such as heating cabinets, and various modifications can be made to the positions and shapes of the protrusions and engaging parts. Various changes can be made without departing from the spirit of the invention.

[Effects of the Invention] As is clear from the above explanation, according to the M storage door of the present invention, a protrusion is provided on the back side of the end of the front plate wrapped in the cover part, and the decorative frame body is provided with a protrusion. Since the engaging part that elastically engages with the protrusion of the front plate is provided on the rib provided between the front plate and protrudes toward the cover part, the amount of overlap between the cover part and the front plate can be reduced. This has the excellent effect of significantly reducing design constraints and preventing deterioration of the appearance of the cover, that is, the front surface of the door, due to sink marks.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a vertical sectional side view of the main part, FIG. 2 is an exploded perspective view of the main part from the back side, and FIG. 3 is a cover FIG. 4 is an exploded front view of the main part showing a part of the refrigerator with a part cut away. Also,
Figures 5 to 7 show conventional examples; Figure 5 is an exploded perspective view of the outer shell, Figure 6 is a view equivalent to Figure 1, and Figure 7 is a view of the second
It is a figure equivalent figure. In the drawing, 12 is a door, 13 is an outer shell, 14 is a front plate, 14
14b is an end portion, 15 is a decorative frame body, 16 is a cover portion, 17 is a rib, 18 is an engaging portion, and 19 is a notch hole portion. Applicant: Toshiba Corporation

Claims (1)

[Claims] 1. A decorative frame body made of synthetic resin that integrally includes a front plate constituting the front surface of the door, a cover portion that is attached to the peripheral edge of the front plate and wraps around the front surface of the peripheral edge of the front plate, and a decorative frame body made of synthetic resin that wraps around the cover portion. a protrusion provided on the back surface of the end of the front plate;
A rib is formed on the decorative frame parallel to the cover part with the front plate in between, and a rib is provided on the rib to protrude toward the cover part and is elastically attached to a protrusion at the end of the front plate. A storage door comprising an engaging portion that engages.