JPH08296951A - Base leg fixing structure - Google Patents

Abstract

PURPOSE: To provide a base leg fixing structure in which a concentration of a stress is prevented as much as possible, and occurrence of irregular foam is also prevented. CONSTITUTION: This base leg fixing structure is comprised of a thermal insulated box 3 constituted by filling foamed thermal insulating material 7 between both inner and outer boxes 5 and 6; a base leg 2 arranged at a bottom surface 27 of the thermal insulating box 3; and a reinforcing plate 28 arranged at the thermal insulating material 7 at the end part of the bottom surface 27 of the outer box 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base leg fixing structure for supporting a heat insulating box.

[0002]

2. Description of the Related Art Conventionally, the structure shown in FIGS. Details of the conventional structure will be described below. The conventional platform fixing structure includes an outer box 100, an inner box 101 inserted into the outer box 100, and a heat insulating material 10 between the inner and outer boxes.
Insulation box body 103 filled with 2, and this insulation box body 10
3, a reinforcing plate 105 of a base leg 104 provided on the heat insulating material 102 side of the bottom of the outer box 100, and the reinforcing plate 105 is provided at a distance from the vertical wall 106 of the outer box 100. And a mounting plate 107 for mounting the base leg 104,
The flange 1 that stands upright from the two sides of the mounting plate 107
08.

Regarding the structure of the base leg, as shown in, for example, Japanese Unexamined Patent Publication No. H10-10658 (F25D23 / 00), a base body whose lower surface projects outward from the base body and a recess provided in the base body. And a mounting shaft protruding from the center of the recess, and an adjuster movable within the length of the mounting shaft. In addition, the reinforcing plate 1 shown in FIGS.
Reference numeral 05 is a structure used in a kitchen device having a short horizontal direction, for example, a refrigerator, and the structures shown in FIGS. 12 and 13 are used in a kitchen device having a long horizontal dimension. In this case, the mounting plate 109
Extend in the longitudinal direction, and a pair of flanges 110 also extend in the longitudinal direction from both front and rear ends to constitute the reinforcing plate 111.

[0004]

In any of the above-described conventional structures, the flanges 108 and 110 are intended to secure the strength in any structure, and therefore the place where the flanges 108 and 110 of the outer box 100 are located. Therefore, there is a problem that the outer box 100 is deformed depending on the load due to the concentrated stress.

Further, when the heat insulating material is filled with foam, the flange 10 is used.
Since the flow of the foamed heat insulating material is obstructed at Nos. 8 and 110, there is also a problem that the resulting heat insulating box has uneven foaming. The present invention has been made in view of the above-mentioned problems, and provides a base leg fixing structure for the purpose of preventing stress concentration as much as possible and preventing foaming unevenness.

[0006]

According to the invention of claim 1,
An insulating box body configured by filling a foamed insulating material between the inner and outer boxes, a base leg provided on the bottom surface of the heat insulating box body, and the base leg attached to the heat insulating material side at the end of the bottom face of the outer box. There is provided a base leg fixing structure including a reinforcing plate provided in the. In addition, claim 2
According to another aspect of the present invention, there is provided an insulation box body configured by filling a foam insulation material between the inner and outer boxes, a base leg provided on a bottom surface of the heat insulation box body, and the base leg attached to an end portion of the bottom surface of the outer box. The base leg fixing structure is provided on the side of the heat insulating material, and includes a reinforcing plate that is coupled to the bottom surface and the side wall of the heat insulating box.

According to a third aspect of the present invention, a heat insulating box body formed by filling a foam insulating material between the inner and outer boxes, a base leg provided on a bottom surface of the heat insulating box body, and the base leg are attached. A base plate fixing structure that is provided on the heat insulating material side at the end of the bottom surface of the outer box, is coupled to the bottom surface and the side wall of the heat insulating box body, and comprises at least four reinforcing plates provided at the four corners of the bottom surface of the heat insulating box body. provide.

[0008]

According to the invention of claim 1, an insulating box body formed by filling a foam insulating material between the inner and outer boxes, a base leg provided on a bottom surface of the heat insulating box body, and mounting the base leg, Since the reinforcing plate is provided on the side of the heat insulating material at the end of the bottom surface of the outer box, it is possible to prevent stress concentration of the reinforcing plate to a specific position with respect to the outer box and to uniformly receive the load applied to the base leg. . Furthermore, since it is provided at the end of the bottom surface of the outer box, the flow of the heat insulating material during foaming is prevented from being obstructed.

According to the second aspect of the present invention, a heat insulating box body is formed by filling a foam insulating material between the inner and outer boxes, a base leg provided on the bottom surface of the heat insulating box body, and the base leg. Attaching, provided on the heat insulating material side of the end of the bottom surface of the outer box, in relation to the bottom plate and the side wall of the heat insulating box, which is composed of a reinforcing plate,
Since the stress applied to the reinforcing plate can be released not only to the bottom surface but also to the side wall, the stress concentration on the specific position of the reinforcing plate with respect to the outer box can be prevented, and the load applied to the base leg can be uniformly received. Furthermore, because it is provided at the end of the bottom of the outer box,
Prevents the flow of heat insulating material from being obstructed during foaming.

According to the third aspect of the present invention, an insulating box body formed by filling a foam insulating material between the inner and outer boxes, a base provided on the bottom surface of the heat insulating box, and the base leg are provided. Attachment, reinforcement provided on the side of the heat insulating material at the end of the bottom surface of the outer box, coupled to the bottom surface and side wall of the heat insulating box body, and composed of at least four reinforcing plates provided at the four corners of the bottom surface of the heat insulating box body. Since the stress applied to the plate can be released not only to the bottom surface but also to the side wall, stress concentration at specific positions of the reinforcing plate with respect to the outer box is prevented, and at the same time, it is provided at least at the four corners of the bottom surface. It is possible to uniformly receive the load applied to. Furthermore, since it is provided at the end of the bottom surface of the outer box, the flow of the heat insulating material during foaming is prevented from being obstructed.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a cooling storage provided with the platform fixing structure of the present invention, FIG. 2 is a vertical sectional view of a cooling storage having the platform fixing structure of the present invention, and FIG. 3 is a bottom view of the cooling storage when mounting the platform. 4 is a perspective view of a front leg fixing structure of the present invention, and FIG. 5 is a rear sectional view of a base leg fixing structure of the present invention.
FIG. 6 is a plan view from the side of the heat insulating material showing the base leg fixing structure of the present invention, and FIG. 7 is a plan view from the side of the heat insulating material when the base leg fixing structure of the present invention is used for a cooling storage with a long width. .

Reference numeral 1 shown in FIGS. 1 and 2 is a cooling storage, that is, a so-called vertical type refrigerator body for business use, and a base leg 2 is provided at four corners on the bottom surface of the refrigerator body 1. Further, the refrigerator body 1 is defined by a heat insulating box 3 having an open front surface, and has a storage chamber 4 inside. The heat insulating box 3 comprises an outer box 5 made of stainless steel, an inner box 6 inserted in the outer box 5, and a foamed heat insulating material 7 foam-filled between the inner and outer boxes 5, 6. An opening / closing door 8 is provided on the front surface of the heat insulating box 3 so as to open and close the opening. A handle 9 is provided on the opening / closing door 8.

Further, a cooler 10 for cooling the inside of the storage chamber 4 is provided at an upper part of the storage chamber 4, and a chamber for discharging cool air into the storage chamber 4 is provided in front of the cooler 10. A circulation fan 11 is provided. A drain tray 12 for receiving defrost water is provided below the cooler 10, and the defrost water in the drain tray 12 is drained by a defrost drain pipe 13. Further, the dew condensation water in the storage chamber 4 is introduced into the drainage device 14 through the drainage port provided on the bottom surface of the storage chamber 4 for drainage treatment, and the defrost water drainage pipe 13 is connected to the drainage device 14. ing. In addition, 15 is a net shelf, and 16 is a shelf support for attaching a shelf receiver that supports the net shelf 15.

Further, on the upper part of the refrigerator main body 1, that is, on the heat insulating box 3, a condenser 17, a compressor 18, and a condenser 17, which constitute a refrigeration cycle together with the cooler 10, and the condenser 17 and the compressor 18 are provided. A machine room 20 including a cooling fan 19 for cooling is formed. In addition, this machine room 20
Machine room door 2 that opens and closes the machine room 20 in front of
1 is provided. The machine room door 21 is provided so that the control panel 22 is exposed or visible. Reference numeral 23 is a three-phase power cord and plug.

The base leg fixing structure of the present invention will be described below with reference to FIGS. 3 to 7. The base 2 includes a base 24,
Adjuster 25 whose height can be adjusted with respect to this base body 24
And a screw portion 26 provided on the upper portion of the base body 24. The screw portion 26 is screwed to the bottom surface of the heat insulating box 3, that is, the reinforcing plate 28 spot-welded to the heat insulating material 7 side of the bottom surface 27 of the outer box 5.

As shown in FIG. 6, the reinforcing plate 28 is provided at each corner of the heat insulating box 3 so that at least the end of the reinforcing plate 28 is located below the vertical wall (side wall, back wall, etc.). Has become. In addition, the side wall of the outer box 5 and the bottom surface 27 of the outer box 5
Is connected to a member constituting the above by means of a screw 29, and the screw 29 has a structure in which the reinforcing plate 28 is also screwed together. By adopting this structure, conventionally, when the total load is 720 kg and the plate thickness of the reinforcing plate is 2.6 mm,
The maximum principal stress was 22.5 kg / square millimeter against the allowable range of 15 kg / square millimeter, and the maximum deformation amount was 5.9 mm, which was not suitable, but the plate thickness was 2.3 m.
As for m, the maximum principal stress is 2.3 kg / square millimeter or less, the maximum deformation amount is 1.0 mm or less, and the strength is increased 9.8 times or more.

The structure shown in FIG. 7 is applied to a refrigerator 1 having a long horizontal width, for example, a horizontal commercial refrigerator or a vertical commercial refrigerator of Hirohiro with 6 or more doors. In this case, FIG.
Similarly to the above, the reinforcing plate 28 is provided at each corner, and the reinforcing plate 28 is added to the back side of the refrigerator 1. In this embodiment, one reinforcing plate 28 and the base leg 2 screwed to the reinforcing plate 28 are used.
However, a plurality of reinforcing plates 28 and base legs 2 may be added according to the lateral length. Conventionally, when the total load is 920 kg and the thickness of the reinforcing plate is 2.3 mm,
The maximum principal stress was 14.7 kg / square millimeter against the allowable range of 15 kg / square millimeter, and the maximum deformation amount was 0.8 mm, which was barely suitable, but a claim was actually caused. By using the structure of the present invention, the maximum principal stress is 2.3 or less and the maximum deformation amount is 1.0 m.
It becomes m or less and the strength is increased 6.5 times or more.

That is, according to the first aspect of the present invention, the heat insulating box body 3 formed by filling the foam box heat insulating material 7 between the inner and outer boxes 5, 6 and the base provided on the bottom surface 27 of the heat insulating box body 3. Leg 2
And the reinforcing plate 28 provided on the side of the heat insulating material 7 at the end of the bottom surface 27 of the outer box 5,
It is possible to prevent stress concentration on the specific position of the reinforcing plate 28 with respect to the outer box 5, and to uniformly receive the load applied to the base leg 2. Further, unlike the prior art, there is no flange that obstructs the inflow of the foamed heat insulating material 7, and since it is provided at the end of the bottom surface 27 of the outer box 5, it prevents the flow of the heat insulating material 7 during foaming from being obstructed.

Further, according to the second aspect of the present invention, the heat insulating box body 3 constituted by filling the foamed heat insulating material 7 between the inner and outer boxes 5 and 6, and the base provided on the bottom surface 27 of the heat insulating box body 3. Leg 2
And the base plate 2 attached to the bottom of the outer case 5 and the reinforcing plate 28 provided on the side of the heat insulating material 7 at the end of the bottom 27 of the outer box 5 and connected to the side wall 27 and the side wall of the heat insulating box 3. Since the stress applied to the reinforcing plate 28 can be released not only to the bottom surface 27 but also to the side wall, the stress concentration on the specific position of the reinforcing plate 28 with respect to the outer box 5 is prevented, and the load applied to the base leg 2 is evenly received. be able to. Further, unlike the prior art, there is no flange that obstructs the inflow of the foamed heat insulating material 7, and since it is provided at the end portion of the bottom surface 27 of the outer box 5, it prevents the flow of the heat insulating material 7 during foaming from being obstructed. To do.

According to the third aspect of the invention, the heat insulating box body 3 is formed by filling the foam box heat insulating material 7 between the inner and outer boxes 5 and 6, and the base provided on the bottom surface 27 of the heat insulating box body 3. Leg 2
The base leg 2 is attached, and the base leg 2 is attached to the end of the bottom surface 27 of the outer box 5 on the side of the heat insulating material 7 and is connected to the bottom surface 27 and the side wall of the heat insulating box body 3 and at least the bottom surface 27 of the heat insulating box body 3. Since the reinforcing plate 28 is provided at the four corners, the stress applied to the reinforcing plate 28 can be released not only to the bottom surface 27 but also to the side wall. Therefore, the stress concentration on the specific position of the reinforcing plate 28 with respect to the outer box 5 is concentrated. And at least the bottom surface 2
Since it is provided at the four corners of 7, the load applied to the base leg 2 can be evenly received. Furthermore, unlike the prior art, there is no flange that obstructs the inflow of the foamed heat insulating material 7, and since it is provided at the end of the bottom surface 27 of the outer box 5, the heat insulating material 7 at the time of foaming is formed.
Prevent the flow of water from being blocked.

[0021]

By using the invention of claim 1,
An insulating box body configured by filling a foamed insulating material between the inner and outer boxes, a base leg provided on the bottom surface of the heat insulating box body, and the base leg attached to the heat insulating material side at the end of the bottom face of the outer box. Because of the reinforcement plate provided on the base plate, it is possible to prevent stress concentration on the specific position of the reinforcement plate with respect to the outer box, and to uniformly receive the load applied to the base leg. Furthermore, since it is provided at the end of the bottom surface of the outer box, the flow of the heat insulating material during foaming is prevented from being obstructed. Therefore, it is possible to provide a high-quality heat-insulating box without unevenness of foaming, and also to increase the strength of the heat-insulating box.

According to the second aspect of the present invention, a heat insulating box body formed by filling a foam insulating material between the inner and outer boxes, a base leg provided on the bottom surface of the heat insulating box body, and the base leg are provided. Attaching, provided on the heat insulating material side of the end of the bottom surface of the outer box, in relation to the bottom plate and the side wall of the heat insulating box, which is composed of a reinforcing plate,
Since the stress applied to the reinforcing plate can be released not only to the bottom surface but also to the side wall, the stress concentration on the specific position of the reinforcing plate with respect to the outer box can be prevented, and the load applied to the base leg can be uniformly received. Furthermore, because it is provided at the end of the bottom of the outer box,
Prevents the flow of heat insulating material from being obstructed during foaming. Therefore, it is possible to provide a high-quality heat-insulating box without unevenness of foaming, and also to increase the strength of the heat-insulating box.

Further, according to the invention of claim 3, an insulating box body configured by filling a foam insulating material between the inner and outer boxes, a base leg provided on the bottom surface of the heat insulating box body, and the base leg are provided. Attachment, reinforcement provided on the side of the heat insulating material at the end of the bottom surface of the outer box, coupled to the bottom surface and side wall of the heat insulating box body, and composed of at least four reinforcing plates provided at the four corners of the bottom surface of the heat insulating box body. Since the stress applied to the plate can be released not only to the bottom surface but also to the side wall, stress concentration at specific positions of the reinforcing plate with respect to the outer box is prevented, and at the same time, it is provided at least at the four corners of the bottom surface. It is possible to uniformly receive the load applied to. Furthermore, since it is provided at the end of the bottom surface of the outer box, the flow of the heat insulating material during foaming is prevented from being obstructed. Therefore,
It is possible to provide a high-quality heat-insulating box without unevenness of foaming, and to increase the strength of the heat-insulating box.

[Brief description of drawings]

FIG. 1 is a perspective view of a cooling storage provided with a platform fixing structure of the present invention.

FIG. 2 is a vertical cross-sectional view of a cooling storage having the platform fixing structure of the present invention.

FIG. 3 is a perspective view from the bottom of the cooling storage cabinet when the base legs are attached.

FIG. 4 is a front cross-sectional view showing a platform fixing structure of the present invention.

FIG. 5 is a rear cross-sectional view showing the platform fixing structure of the present invention.

FIG. 6 is a plan view from the side of the heat insulating material showing the base leg fixing structure of the present invention.

FIG. 7 is a plan view from the heat insulating material side when the platform fixing structure of the present invention is used in a cooling storage with a long width.

FIG. 8 is a perspective view from the bottom of the cooling storage when the base leg of the conventional structure is attached.

FIG. 9 is a rear cross-sectional view showing a conventional structure.

FIG. 10 is a front sectional view showing a conventional structure.

FIG. 11 is a plan view from the heat insulating material side showing the conventional structure.

FIG. 12 is a front cross-sectional view of a conventional structure of a cooling storage with a long width.

FIG. 13 is a plan view from the heat insulating material side of the conventional structure of the cooling storage with a long width.

[Explanation of symbols]

 2 legs 3 Insulation box 5 Outer box 6 Inner box 7 Foam insulation 27 Bottom 28 Reinforcing plate

Claims (3)

[Claims] 1. An insulating box body configured by filling a foam insulating material between both inner and outer boxes, a base leg provided on a bottom surface of the heat insulating box body, and an end of the bottom face of the outer box attached with the base leg. Base leg fixing structure consisting of a reinforcing plate provided on the heat insulating material side of the section. 2. An insulating box body configured by filling a foam insulating material between both the inner and outer boxes, a base leg provided on a bottom surface of the heat insulating box body, and an end of the bottom face of the outer box attached with the base leg. A leg fixing structure, which is provided on the heat insulating material side of the portion and includes a reinforcing plate that is coupled to the bottom surface and the side wall of the heat insulating box. 3. An insulating box body configured by filling a foam insulating material between the inner and outer boxes, a base leg provided on a bottom surface of the heat insulating box body, and an end of the bottom face of the outer box attached with the base leg. The base fixing structure, which is provided on the heat insulating material side of the portion, is coupled to the bottom surface and the side wall of the heat insulating box body, and comprises at least reinforcing plates provided at four corners of the bottom surface of the heat insulating box body.