JPH07218110A - Inner box structure for refrigerator or the like - Google Patents

Abstract

PURPOSE:To provide a processing jig so as to be common for various specifications by scarcely storing water in the case of easily cleaning in an inner box. CONSTITUTION:An inner box 14 is formed by coupling a bottom plate 24, side plates 26, 28, a back plate 30 and a surface plate 32 to each other. The plate 24 is so formed that four sides of a rectangular metal sheet in the same height in a tray state of a specific depth bent toward its upside. Flanges 34a, 36a, 28a, 40a parallel with a bottom 42 are bent to be formed at upper edges of front and rear, right and left rises of the plate 24. The plates 26, 28 are so perpendicularly coupled to flanges 48, 48 of lower edges at the flanges 38a, 40a extended in a depth direction of the plate 24. The flanges 48, 48 of the plates 26, 28 are formed upward gradients from front ends toward rear ends. Thus, when the flanges 46, 46 of upper edges of the plates 26, 28 are horizontally set, downward gradients are formed at front sides of the bottom 42 of the plate 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner box structure for a refrigerator or the like, and more particularly to an inner box which is easy to clean and can always be kept hygienic, and which is economical to manufacture inner boxes of different sizes. The present invention relates to a possible inner box structure.

[0002]

2. Description of the Related Art A cabinet is configured horizontally to serve as a refrigerator or freezer (hereinafter simply referred to as "refrigerator"), etc., for freezing and storing vegetables, fruits and other fresh foods such as meat and fish (hereinafter referred to as "ingredients") for a long period of time. Horizontal refrigerators are known. This horizontally-long box-shaped main body (cabinet) has an outer box that has a large rectangular opening on the front side, and a large space on the front side that is installed in the outer box with a required gap. A heat-insulating box body composed of an inner box having an open rectangular opening, and a heat insulating material such as urethane foam filled between the boxes, wherein the inner box is a storage for cooling and storing foodstuffs. The room is defined. Further, on the front surface of the main body, a heat insulating door for opening and closing the opening is provided.

The inner box is constructed by connecting a bottom plate, a pair of side plates, a back plate and a top plate to each other. The bottom plate is basically formed by bending four sides of a rectangular bottom face upward. It is formed like a saucer. In addition, the bottom plate is basically a saucer shape, the bottom surface is horizontal, the four inner corners are formed in an arc shape (rounded), and the height of the rising part of the four sides is different between the front side and the rear side. As a result, the bottom surface has a downward slope toward the front side, and the inner four corners are not roughly formed into an arc shape.

[0004]

In the refrigerator, it is unavoidable that the juice produced from the foodstuffs stored in the storage chamber and the water droplets generated during the defrosting operation adhere to the inner surface of the inner box, and are left as they are. As a result, various bacteria will propagate and become unsanitary. Therefore, from the viewpoint of hygiene, the inside of the inner box is regularly cleaned (washed with water). Then, the cleaning water used for cleaning is discharged to the outside through a drain port provided at the bottom of the main body.

In this case, in the inner box employing the bottom plate having the above-mentioned shape, since the inner bottom surface of the inner box is horizontal, the cleaning water cannot be efficiently guided to the drain port, and the bottom surface is cleaned. Sometimes water remained. Also,
In the inner box that employs the bottom plate having the above-described shape, the bottom surface has a slope, so that the cleaning water can be efficiently discharged by providing the drain port on the front side. However, since the inner four corners are square, it is difficult to completely remove the residue such as foodstuffs accumulated here by simple cleaning. Moreover, even if the bottom surface is sloped, the joint between the rising portion of the bottom plate and the side plate is horizontal, so the cleaning water flowing along the side plate may collect at the joint. As described above, if the cleaning water remains on the bottom surface or the seams after cleaning, or if the residue such as foodstuffs remains at the four corners, there is a possibility that various bacteria and the like may propagate at the sites.

[0006] The refrigerator is set to have various specifications such that the inner box size is changed and the storage amount of foodstuffs is different so that it can be used according to various users' usage modes. In this case, in the bottom plate having the above-mentioned shape, if the slope of the bottom surface is constant, the height dimension of the front and rear rising portions will differ depending on various specifications according to the change in the dimension in the depth direction. Therefore, it is necessary to manufacture a mold jig for processing used for bending each corner of the bottom plate for each specification, which increases jig cost and complicates storage and management of the jig. There is. Further, it is pointed out that in the bottom plate manufacturing line, it takes time to change the setup of the mold jig when the order is changed, and the manufacturing efficiency is lowered.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks inherent in the above-mentioned prior art, and is proposed in order to solve the above-mentioned disadvantages. It is an object of the present invention to provide an inner box structure for a refrigerator or the like that is hard to collect and has commonality to processing jigs of various specifications.

[0008]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and to achieve the intended purpose, the present invention is a refrigerator having an inner box which is constructed by connecting a plurality of metal plates to each other and which is opened forward. Etc., at least the bottom plate and the side plate constituting the inner box are formed of separate members, and the bottom plate is formed in a saucer shape with a constant depth by rising portions of the same height bent at the four sides of the sheet metal toward the upper side. The side plate has a lower edge connected to a rising portion extending in the depth direction of the bottom plate, and has an upslope from a front end to a rear end thereof. It is characterized in that the joint between the portion and the lower edge is connected so as to be parallel to the bottom surface of the bottom plate.

Further, in order to achieve the above-mentioned object, another invention of the present application is, in a refrigerator or the like having an inner box which is formed by connecting a plurality of sheet metals to each other and is opened forward, at least a bottom plate constituting the inner box. And a side plate, which are separate members, and the bottom plate is formed in a saucer shape with a certain depth by rising portions of the same height bent at the four sides of the sheet metal, and its inner four corners are arcuate. The side plate is formed, the lower end edge connected to the rising portion extending in the depth direction of the bottom plate, is provided with an upward slope from the front end to the rear end, the bottom plate and the side plate, It is characterized in that a joint between the rising portion and the lower edge is connected so as to be parallel to the bottom surface of the bottom plate.

[0010]

EXAMPLES Next, the inner box structure of a refrigerator or the like according to the present invention will be described below with reference to preferred examples. FIG. 1 is a schematic perspective view showing an exploded inner box according to a preferred embodiment of the present invention,
FIG. 2 is a front view of the horizontal refrigerator according to the embodiment. The horizontally-shaped box-shaped main body 10 of the horizontal refrigerator shown in the figure is mounted in an outer box 12 having a rectangular opening 12a on the front side and a predetermined gap in the outer box 12. Similarly, a rectangular opening portion 14 that is largely open to the front side
It is composed of an inner box 14 having a and a heat insulating material 16 such as urethane foam filled between both boxes 12, 14. And
Inside the inner box 14, a storage chamber 18 for cooling and storing food materials is defined. Further, on the front surface of the main body 10, a heat insulating door 20 that opens and closes the opening 12a is provided. It should be noted that a refrigerating mechanism including a cooler, a fan inside the refrigerator, a condenser, a cooling fan, a compressor, and the like, which function to cool the inside of the storage chamber 18, is provided on a side portion of the main body 10 (neither is shown)
A box body 22 that accommodates is disposed.

The inner box 14 is basically constructed as a box body which opens to the front side by connecting the bottom plate 24, the pair of side plates 26, 28, the back plate 30 and the top plate 32 to each other. It Each of the plates 24, 26, 28, 30, 32 is formed of a sheet metal made of, for example, stainless steel in the illustrated shape, and is connected to each other by a holding member described later.

That is, the bottom plate 24 is formed in a saucer shape having a constant depth by bending four sides of a rectangular sheet metal at the same height toward the upper side, and its inner four corners are formed in an arc shape. . In addition, the front, rear, left and right rising portions 34, 36, 3
Flanges 34a, 36a, 38a, 40a bent outward are formed on the upper edges of the 8, 40, and the respective flanges 34a, 36a, 38a, 40a are parallel to the rectangular bottom surface 42. It is set. As shown in FIG. 4, a through hole 42a communicating with a drainage port 44 provided in the main body 10 is formed at a position biased to the front side of the bottom surface 42, and the cleaning water for cleaning the inside of the inner box is drained through the drainage port 44. It can be discharged to the outside through. In addition, each rising portion 34, 36, 38,
Each of the flanges 34 is provided at a portion corresponding to the four corners of 40.
A flange shorter than a, 36a, 38a, 40a is formed.

Side plates 26 and 28 are vertically connected to left and right flanges 38a and 40a extending in the depth direction of the bottom plate 24. Since the pair of side plates 26 and 28 are bilaterally symmetrical, only the structure of the right side plate 28 in FIG. 1 will be described, and the same parts of the left side plate 26 will be denoted by the same reference numerals. The side plate 28, as shown in FIG.
Flanges 46, 48, 50 bent toward the outside (outside of the inner box) are formed at the upper and lower edges and the rear edge of the rectangular sheet metal, and the flange 48 at the lower edge corresponds to the corresponding flange on the bottom plate 24. In the state of being placed in contact with 40a (see FIG. 4),
The both 48, 40a are sandwiched by a clip-shaped holding member (not shown), whereby the side plate 28 is connected to the bottom plate 24. In addition, the flange 4 at the lower edge of the side plate 28
8 has an upward slope from the front end to the rear end,
As a result, with the upper edge flange 46 set horizontally, the bottom plate 24 connected through the lower edge flange 48 is connected.
The bottom surface 42 is provided with a downward slope toward the front side (see FIG. 3). A curved portion 52 that is curved so as to match the arc shape of the corner of the bottom plate 24 is formed at the front edge of the side plate 28, and the end portion of the curved portion 52 is bent forward. A flange 54 is formed.

A back plate 30 connected to the rear side of the bottom plate 24.
Has flanges 30a and 30b bent outwardly at the upper and lower end edges of a rectangular sheet metal, and the flange 30a at the lower end edge abuts against the rear flange 36a of the bottom plate 24. In the installed state (see FIG. 3), both 30a,
By sandwiching 36a with a holding member, the bottom plate 24
The back plate 30 is connected to the. In addition, curved portions 30c that are curved so as to match the arcuate shape of the corners of the bottom plate 24 are formed at the left and right edge portions of the back plate 30, respectively, and the curved edge portions 30c of the curved portions 30c face outward. A bent flange 30d is formed. Then, the left and right flanges 30d and 30d are connected to the left and right side plates 2 as shown in FIG.
In a state of contacting the rear side flanges 50, 50 of 6, 28, they are connected by a holding member.

As shown in FIG. 1, the top plate 32 is composed of a rectangular horizontal portion 32a having a required size and an inverted L-shaped positioning portion 32b formed by bending the front end edge of the horizontal portion 32a. . Then, the positioning portion 32b is attached to the both side plates 2
The left and right edge portions of the horizontal portion 32a are connected to the front end portions of the flanges 46, 46 of the reference numerals 6, 28, and the flange portions 46, 46 of the upper end edges of the side plates 26, 28 and the back plate 30. , 30a, the corresponding flanges are sandwiched by the holding members, and the inner box 14 opens forward.
Are formed. The inner box 14 is the outer box 1
A top plate 32 is installed in the interior of 2 in a state of being horizontally positioned.

[0016]

Next, an actual assembling procedure of the inner box structure according to the embodiment thus constructed will be described. As shown in FIG. 4, the left and right flanges 38 of the bottom plate 24.
The flanges 48, 48 at the lower end edges of the side plates 26, 28 with the inclination are placed on the a, 40a, and the flanges 38a, 48 /
The holding members 40a and 48 are sandwiched and connected. Also the bottom plate 24
As shown in FIG. 3, the flange 30b at the lower edge of the back plate 30 is placed on the rear flange 36a in FIG. 3, and both flanges 36a and 30b are sandwiched and connected by a holding member. Then, the flanges 50, 50 on the rear side of the side plates 26, 28 and the back plate 30
After aligning the left and right flanges 30d, 30d in the front-rear relationship with each other, the corresponding flanges 50, 30d are sandwiched and connected by a holding member. Furthermore, with the horizontal portion 32a of the top plate 32 placed on the flanges 46, 46 at the upper edge of the side plates 26, 28 and the flange 30a at the upper edge of the back plate 30, each edge portion has a corresponding flange 46, The inner box 14 is assembled by sandwiching and connecting the members 46, 30a with holding members.

The inner box 14 is positioned inside the outer box 12 so that the required clearance is maintained and the top plate 32 is horizontal. Then, by filling the heat insulating material 16 between the boxes 12 and 14, the main body 10 having the heat insulating structure is formed.
At this time, the bottom surface 42 of the inner box 14 is provided with a downward slope toward the front side as shown in FIG. 3, so that the cleaning water can be efficiently guided to the drain port 44. Also the bottom plate 2
4 and side plates 26 and 28 (abutting surfaces of flanges)
Has a slope parallel to the bottom surface 42, so that the side plate 2
When the wash water flowing through 6,28 reaches the seam,
The wash water may flow forward along the gradient and drip onto the bottom surface 42 to prevent wash water from pooling at the seams. Furthermore, the bottom plate 2
Since the four corners are all formed in the shape of an arc, dust and the like can be completely removed by simple cleaning, and cleaning water and the like do not remain, and the inside can always be kept hygienic. Since the seam between the bottom plate 24 and the side plates 26, 28 is parallel to the bottom surface 42 of the inner box 14, the heat insulating door 2
When 0 is opened and the inside of the storage chamber 18 is visually recognized from the opening 12a, the gradient actually attached is not so noticeable, and the operator does not feel uncomfortable. Further, since the seam is close to the bottom surface 42 of the bottom plate 24, the seam is not conspicuous and a good appearance can be obtained.

Here, each corner of the bottom plate 24 is formed by the procedure shown in FIG. That is, first, a required notch 56 is made at a corner (a), and a pair of pieces 58, 58 facing each other with the notch 56 sandwiched are bent and the facing surfaces are butted (b). Thereafter, the corner portion is pressed with a working die jig to form a corner portion having an arcuate inner side (c).

In the refrigerator, the inner diameter of the inner box 14 is changed so that the refrigerator can be used according to the usage of various users.
There are various sizes of food items that can be stored. In this case, in the embodiment, the bottom plate 24 is formed in the shape of a saucer with a certain depth, and then the bottom edges of the side plates 26 and 28 are provided with a slope so that the bottom surface 42 of the inner box 14 inside the outer box 12 is provided. It is possible to give a required gradient. Therefore, as shown in FIG. 7, even if the depth dimension of the bottom plate 24 changes due to a change in the specifications of the inner box 14,
The heights of the rising portions 34, 36, 38, 40 do not differ, and the processing die jig used for bending the corners of the bottom plate 24 is commonly used for various specifications. You can As a result, when manufacturing the bottom plate 24, it is possible to shorten the time required for setup change due to order change. Further, since it is not necessary to prepare the machining die jig for each specification, it is possible to reduce the die cost and the manufacturing cost. In the embodiment, the side plates 26 and 28 are
Only the depth dimension is changed with the height difference between the front and rear at the lower edge being constant (t).

Although the horizontal refrigerator is described in the present embodiment, the present invention can be applied to a vertical refrigerator. Further, the assembling of the bottom plate, the pair of side plates, the back plate and the top plate is not limited to the one using the holding member, but may be fixed by welding such as a tapping screw or a fastening means such as a bolt and a nut. Furthermore, it is also recommended to use a structure such that fitting is possible without using a fixing member.

[0021]

As described above, according to the inner box structure of a refrigerator or the like according to the present invention, since the lower end edge of the side plate connected to the bottom plate is provided with an inclination, the bottom plate is formed into a saucer shape having a constant depth. Underneath, the bottom can be graded. Therefore, the cleaning water for cleaning the inside of the inner box having a slope on the bottom surface can be efficiently guided to the drain port or the like, and the cleaning water or the like can be prevented from remaining on the bottom surface. In addition, since a required gradient is added to the joint between the bottom plate and the side plate, water or the like that has reached the joint along the side plate flows along the gradient without being accumulated in the joint. Moreover, since the bottom surface and the seam are parallel to each other, the presence of the slope of the bottom surface is not taken into consideration, and there is no discomfort.

Further, since all the corners of the bottom plate are formed in an arc shape, dust and the like can be completely removed by simple cleaning, and cleaning water and the like do not remain and the inside is always kept hygienic. You can Furthermore, since the lower edge of the side plate is provided with a slope, when manufacturing the inner box with the dimension in the depth direction changed,
It becomes possible to commonly use a die jig for processing the bottom plate with various specifications. That is, it is not necessary to manufacture or store a large number of mold jigs for processing corresponding to bottom plates having different sizes, and it is possible to reduce manufacturing costs and administrative expenses. Further, when manufacturing the bottom plate, there is an advantage that the time required for setup change when the order is changed can be shortened and the manufacturing efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an exploded inner box according to an embodiment.

FIG. 2 is a front view of the horizontal refrigerator according to the embodiment.

FIG. 3 is a vertical sectional side view of a main part of the horizontal refrigerator according to the embodiment.

FIG. 4 is a vertical sectional front view of a main part of the horizontal refrigerator according to the embodiment.

FIG. 5 is a vertical cross-sectional plan view of essential parts of the horizontal refrigerator according to the embodiment.

FIG. 6 is an explanatory diagram showing a step of forming a corner portion of the bottom plate.

FIG. 7 is an explanatory diagram showing the relationship between the bottom plate and the side plate when the depth dimension of the inner box changes.

[Explanation of symbols]

10 inner box, 24 bottom plate, 26 side plate, 28 side plate, 34
Rise section 36 Rise section, 38 Rise section, 38a Flange, 4
0 rising portion 40a flange, 42 bottom surface, 48 flange

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuyuki Takaoka, 3-16, Hoshizaki, Sakaemachi South Building, Toyoake City, Aichi Prefecture Hoshizaki Electric Co., Ltd. (72) Inventor, Shigekazu Kondo, 16th, South Building, Toyoake City, Aichi Prefecture Inside the company (72) Inventor Yu Hirosawa 16-3 Hoshizaki Electric Co., Ltd., Sakaemachi South Building, Toyoake City, Aichi Prefecture (72) Inventor Shunichi Ueno 16 16th, South Building Sakaemachi, Toyoake City, Aichi Prefecture Hoshizaki Electric Co., Ltd.

Claims (3)

[Claims] 1. A plurality of sheet metals are connected to each other,
In a refrigerator or the like provided with an inner box (14) opening to the front, at least a bottom plate (24) and a side plate (26, 26, which constitute the inner box (14).
28), which is a separate member, and the bottom plate (24) is formed in a saucer shape with a constant depth by the rising portions (34, 36, 38, 40) of the same height, which are formed by bending the four sides of the metal plate upward. Is formed, the side plate (26, 28), the lower edge connected to the rising portion (38, 40) extending in the depth direction of the bottom plate (24), the upward slope from the front end to the rear end. The bottom plate (24) and the side plates (26, 28) are attached to the rising portions (38, 40).
An inner box structure for a refrigerator or the like, in which a joint between the bottom edge and the bottom edge is connected so as to be parallel to the bottom surface (42) of the bottom plate (24). 2. A plurality of sheet metals are connected to each other,
In a refrigerator or the like provided with an inner box (14) opening to the front, at least a bottom plate (24) and a side plate (26, 26, which constitute the inner box (14).
28), which is a separate member, and the bottom plate (24) is formed in a saucer shape with a constant depth by the rising portions (34, 36, 38, 40) of the same height, which are formed by bending the four sides of the metal plate upward. While being formed, the inner four corners are formed in an arc shape, the side plate (26, 28), the bottom plate (24) at the lower end edge connected to the rising portion (38, 40) extending in the depth direction. , An upward slope is provided from the front end to the rear end thereof, and the bottom plate (24) and the side plates (26, 28) are the rising portions (38, 40).
An inner box structure for a refrigerator or the like, in which a joint between the bottom edge and the bottom edge is connected so as to be parallel to the bottom surface (42) of the bottom plate (24). 3. A flange (38a, 40a) bent outward is parallel to a bottom surface (42) at an upper edge of a rising portion (38, 40) extending in the depth direction of the bottom plate (24). As it is formed
At the lower end edge of the side plate (26, 28), a flange (48, 48) bent outward is formed in a state in which an upward slope is applied from the front end toward the rear end, and the bottom plate (24) The inner box structure for a refrigerator or the like according to claim 1 or 2, wherein the side plates (26, 28) are connected with the flanges (38a, 48 / 40a, 48) in contact with each other.