JP2002213865A - Cooling storage chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling storage chamber, wherein the shape of an external surface member is simplified and is preferable in view of sanitation. SOLUTION: A cooling storage chamber R is constituted, with a storage chamber 20 being constructed in a heat insulation box 18 which opens frontally, and the heat insulation is achieved by closing an opening 22 of the heat insulating box 18 with doors 2, 3 supported turnably on the heat insulating box 18 with a hinge member 9 located at upper and lower portions on one side of the left and the right and free to open and close; and in the cooling storage chamber R, the doors 2, 3 comprise an outer surface member 4 and an inner surface member 5, resinous caps 7, 8 coupling these outer surface member 4 and the inner surface member 5 on the left and right opposite sides, and a heat insulating member which is filled in a space surrounded by these outer surface member 4 and the inner surface member 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage chamber formed in a heat-insulating box having a front opening, and the opening of the storage chamber is rotatable with respect to the heat-insulating box by hinges located at one side in the horizontal direction. The present invention relates to a cooling storage that is openably and closably closed by a door pivotally supported by the cooling storage.

[0002]

2. Description of the Related Art Conventionally, in a cooling storage of this type, an opening of a heat insulating box which is opened at the front is closed by a door which is rotatably supported. The door includes an outer surface material and an inner surface material. The outer surface material has flanges formed on both side edges thereof and bent toward the inner surface material side, and caps made of, for example, resin are attached to upper and lower edges. A door is formed by foaming and filling a heat insulating material in a space surrounded by the outer surface material, the inner surface material, the flange of the outer surface material, and the cap.

[0003]

On the other hand, the cooling storage used for business use has no change in the height of the door.
In many cases, the width of the main body is changed according to the installation place or the request of the user. Therefore, when the width of the main body is changed in the process of manufacturing the cooling storage, the width of the door must be changed accordingly. At this time, if flanges are formed at both ends of the outer surface material constituting the door as in the related art, it is impossible to change the width of the door. Manufacturing must be performed, and there has been a problem that productivity is reduced.

[0004] Further, in the conventional door of the cooling storage, since caps are attached to the upper and lower ends on both sides, dust easily accumulates on the caps themselves, and there is a problem in hygiene. In particular, in a cooling storage room in which storage rooms are defined vertically and doors are formed in each case, a cap formed at the upper end of a door that closes the lower storage room by taking food in and out of the upper storage room. For example, meat juice may be attached, and if the meat juice between the cap and the outer surface material enters, cleaning becomes difficult and there is a hygiene problem.

The present invention has been made in order to solve the conventional technical problems, and an object of the present invention is to provide a cooling storage which can simplify the shape of the outer surface material and is hygienic. And

[0006]

SUMMARY OF THE INVENTION The cooling storage of the present invention comprises:
A storage room is formed in the heat-insulating box body that opens to the front, and the opening of the heat-insulating box body can be opened and closed by a door that is pivotally supported by the heat-insulating box body by hinges located on one side in the left-right direction and up and down. Wherein the door comprises an outer surface material and an inner surface material,
It is characterized by comprising a resin cap for connecting the outer surface material and the inner surface material on both left and right sides, and a heat insulating material filled in a space surrounded by the outer surface material and the inner surface material and the cap.

According to the present invention, the storage chamber is formed in the heat-insulating box body opening to the front, and the opening of the heat-insulating box body is rotatable to the heat-insulating box body by hinges located on one side in the horizontal direction. In a cooling storage box which is openably and closably closed by a pivotally supported door, the door includes an outer surface material and an inner surface material, a resin cap for connecting the outer surface material and the inner surface material on both left and right sides, and an outer surface material and an inner surface material. Since it is composed of the inner surface material and the heat insulating material filled in the space surrounded by the cap, there is no need to form a bent flange on the inner surface material side on both sides of the outer surface material, and the shape of the outer surface material is reduced. Simplification can be achieved and productivity can be improved.

In addition, since the caps extend up and down on both the left and right sides of the door, dust is less likely to accumulate on the caps themselves as compared to the case where the caps are mounted on the left and right sides of the door. Becomes

The cooling storage according to the second aspect of the present invention is the first aspect of the invention.
In addition to the above invention, a cap reinforcing plate made of a steel plate is attached to the inside of the cap, and a hinge engaging portion with which a hinge engages is formed integrally with the reinforcing plate of the cap.

According to a second aspect of the present invention, in addition to the first aspect, a cap reinforcing plate made of a steel plate is attached to the inside of the cap, and the hinge is engaged with the cap reinforcing plate by a hinge. Since the joint is formed integrally, the resin cap can be reinforced, and the strength of the door can be improved.

Further, since the hinge engaging portion with which the hinge engages is formed integrally with the cap reinforcing plate, a hinge reinforcing plate for engaging the hinge is not required, and the number of parts can be reduced. Become like

According to a third aspect of the present invention, there is provided a cooling storage unit.
In addition to the invention of the above, the upper hinge on one side in the left-right direction is engaged with the hinge engaging portion, and the hinge reinforcing plate with which the lower hinge is engaged is attached separately from the cap reinforcing plate in the door. The hinge reinforcing plate is formed of a steel plate having a greater thickness than the cap reinforcing plate.

According to the third aspect of the present invention, in addition to the second aspect of the present invention, the upper hinge is engaged with the hinge engaging portion and the lower hinge is engaged with the lower hinge. Attach the reinforcing plate inside the door as a separate body from the cap reinforcing plate,
Since the hinge reinforcement plate is made of a thicker steel plate than the cap reinforcement plate, the portion that engages with the lower hinge where the load of the door is added is strongly reinforced to prevent the door from deforming and falling off Will be able to

According to a fourth aspect of the present invention, in addition to the first, second or third aspect of the present invention, the cooling storage is provided with a recessed handle base attached to the non-pivot side of the door and an inside of the cap. A plurality of reinforcing bars formed integrally are provided, and the reinforcing bar at a position corresponding to the handle base is shaped to avoid the handle base.

According to the fourth aspect of the present invention, in addition to the first, second or third aspect of the present invention, the concave handle base attached to the non-pivot side of the door and the inside of the cap are integrated. The reinforcing bar at a position corresponding to the handle base has a shape avoiding the handle base, so that the strength of the cap itself can be improved. Further, since the reinforcing bar at the position corresponding to the handle base is shaped to avoid the handle base, there is no problem in mounting the handle base.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a cooling storage R of the present invention,
FIG. 2 shows a plan sectional view of the cooling storage R. The cooling storage R of the embodiment is a vertical commercial freezer installed in a kitchen of a hotel or a restaurant, and is constituted by a heat insulating box 18 opened to the front. In a storage room 20 formed in the heat insulating box 18, shelves 21 for mounting cooked foods (dishes) and ingredients are installed, and furthermore, a front opening of the storage room 20 is provided. Reference numeral 22 is vertically divided at the center by a not-shown middle partition in the horizontal direction. The front opening 22 is provided with a support 31 for receiving a gasket 30 of the doors 2 and 3, which will be described in detail later, at the center in the vertical direction.

Further, a cooling device 24 is provided in the upper part of the storage room 20.
Of the storage chamber 20 is cooled to a predetermined temperature by this cooler. Further, a machine room 27 is defined on a top surface of the heat insulating box 18 by a front panel 25 and panels 26 constituting both side surfaces and a rear surface.
The compressor 28, the condenser 29, and the like that constitute the above-mentioned components are installed, and together with the cooler, constitute a well-known refrigerant circuit of the cooling device 24.

On the other hand, the upper and lower openings 22 of the storage room 20 partitioned by the intermediate partition are closed by two sets of double doors (insulated doors) 2, 3 so as to be openable and closable. Here, the doors 2 and 3 will be described with reference to FIGS. FIG.
FIG. 4 is an exploded perspective view of the door 2 on the non-pivot side, FIG. 4 is an enlarged exploded perspective view of a handle portion, FIG.
6 is an exploded perspective view of the pivot-side door 2, and FIG. 7 is a pivot-side door 2.
FIG. The doors 2 and 3 are external members 4
, The inner surface material 5, the pivot-side cap 7, the non-pivot-side cap 8, and a foam heat insulating material (not shown).

The outer surface member 4 is made of, for example, a plate-like member made of a steel plate.
A flange 10 is formed, which is bent toward the inner surface material 5 when attached to the inner surface member 5 and then further bent inward with such an end. A flange 10 formed at an upper end and a lower end located on the pivot side of the outer surface member 4 serves as a hinge engaging portion for attaching a hinge member 9 for rotatably attaching the door 2 to the opening 22 of the heat insulating box 18. Hinge hole 11 and screw hole 12 are formed.

Then, both ends of the outer surface member 4 are cut in accordance with the width dimension of the cooling storage R main body, and a handle 50 is attached to the non-pivot side. The handle 50 includes a handle body 51 and a handle cover 52, and is fixed to the outer surface member 4 by the handle base 32.

Here, on the non-pivot side of the outer surface material 4,
A notch 33 for attaching the handle base 32 is formed. A screw hole 34 for fixing the handle base 32 is formed in the vicinity of the notch 33, in the present embodiment, above and below.

The handle base 32 is formed so as to be recessed rearward as shown in FIGS. 3 and 4, and a lower flange 53 is formed on the periphery of the handle base 32 abutting on the notch 33. An upper flange 54 is formed on the front surface of the lower flange 53 so as to form a groove between the lower flange 53 and the lower flange 53 which is recessed inside the small handle base 32. At the upper and lower portions of the lower flange 53, mounting portions 55 extending upward and downward, respectively, are formed. A holding portion 56 that is recessed rearward is formed on the mounting portion 55, and the holding portion 56 has a nut having substantially the same inner diameter as that of the holding portion 56 for attaching the handle body 51 to the outer surface member 4. The member 57 can be stored.

Further, the holding portion 56 is formed with a screw hole 56A for matching with the screw hole 57A of the nut member 57. Further, the upper or lower edge of the holding portion 56 is provided with a passage 5.
8 are formed.

The handle body 51 has screw holes 5 formed in the holding portion 56 of the handle base 32 at the upper and lower portions.
A mounting hole 51A is formed to match 6A.
The handle body 51 and the handle cover 52 are detachably attached to each other by engaging portions formed on the outer edge.

With the above configuration, when attaching the handle 50 to the outer surface member 4, first, the lower flange 53 of the handle base 32 is brought into contact with the inner surface of the outer surface member 4 so as to close the notch 33. At this time, the end face of the notch 33 of the outer surface material 4 is inserted into a groove formed between the lower flange 53 and the upper flange 54 of the handle base 32. This allows
An end face of the notch 33 of the outer surface material 4 is held between the lower flange 53 and the upper flange 54. The screw hole 34 formed in the outer surface material 4 and the holding portion 56 of the handle base 32
A is matched.

The holding portion 56 of the handle base 32
After the nut member 57 is placed on the handle body 51, the mounting portion 55 of the handle base 32 is
Is placed. At this time, the mounting hole 51 of the handle body 51
A is aligned with the screw hole 34 of the outer surface member 4, and the handle body 51, the outer surface member 4, and the handle base 32 are fixed together by screws (not shown).

At this time, since the holding portion 56 is formed on the handle base 32 and the nut member 57 into which the screw is screwed can be held, the screw can be easily fastened to the nut member 57. As a result, the handle can be firmly fixed to the outer surface material.

When the handle body 51 is attached, the nut member 57 is placed on the holding portion 56 of the handle base 32, and the lower flange 53 of the handle base 32 is slid along the back side of the outer surface material 4 to thereby handle the handle base 32. 32 can be attached to the notch 33 of the outer surface material 4, so that the operation of attaching the handle body 51 can be simplified.

Further, as will be described later, the heat insulating material is foamed and filled between the outer surface material 4 and the inner surface material 5, so that the heat insulating material enters from a passage 58 formed in the holding portion 56 of the handle base 32. The heat insulating material is filled between the outer surface material 4 and the holding part 56, and the nut member 57 existing in the holding part 56 is
The handle base 32 is pressed against the back surface and firmly holds the outer surface material 4.
Can be attached to Note that a handle cover 52 is attached to the front surface of the handle body 1.

The non-pivot side cap 8 is attached to the non-pivot side of the outer surface member 4 to which the handle 50 is attached. The non-pivot side cap 8 is a cover member for the non-pivot side end of the outer surface member 4, and is a resin plate-shaped member formed from the upper end to the lower end of the outer surface member 4. The non-pivot side cap 8 has a flange 8A formed at a front end and a rear end.
Is formed so that the flange 10 can be covered from the side.

Inside the non-pivot side cap 8, for example, a reinforcing bar 14 is formed at the front from the upper part to the lower part. The reinforcing bar 14 is provided with the non-pivot side cap 8.
And a plurality of bars 14A projecting from the front to the center. Thereby, the non-pivot side cap 8 can be reinforced, and the non-pivot side cap 8 can be formed firmly.

The crosspiece 14A at a position where it comes into contact with the handle base 32 is formed to retreat rearward and sideward in accordance with the shape of the handle base 32.
The shape avoids. Thereby, the mounting of the handle base 32 is not hindered.

On the other hand, an upper cap reinforcing plate 60 and a lower cap reinforcing plate 61 made of a steel plate are mounted inside the non-pivot side cap 8. Upper cap reinforcing plate 60
Is a plate-like member having a substantially L-shaped cross section, and a flange 60A is formed on the front and rear surfaces. The upper cap reinforcing plate 60 is provided on a flange 1 formed at the upper end of the outer surface material 4.
The upper surface 60B, which is formed to have a dimension slightly smaller than the width dimension of 0 and forms one surface of the L-shape, is configured to abut the inside of the upper end of the outer surface material 4. A side surface 60C that constitutes the other surface of the L-shape is formed so as to extend downward and is provided with a notch for abutting and attaching to a reinforcing bar 14 formed inside the non-pivot side cap 8. A notch 62 is formed, and a flange 63 is formed at the front end of the notch 62 so as to contact the reinforcing bar 14.

Thus, since the upper cap reinforcing plate 60 is attached inside the non-pivot side cap 8, the non-pivot side cap 8 made of resin can be reinforced and the strength of the doors 2, 3 can be increased. Can be improved.

On the other hand, the lower cap reinforcing plate 61 is a plate-like member having a substantially L-shaped cross section formed of a steel plate thicker than the upper cap reinforcing plate 60, and has flanges 61A formed on the front and rear surfaces. ing. This lower cap reinforcing plate 6
1 is formed to have a dimension slightly smaller than the width dimension of the flange 10 formed at the lower end of the outer surface material 4, and the lower surface 61 </ b> B forming one L-shaped surface is in contact with the inside of the lower end of the outer surface material 4. Is configured. A side surface 61C constituting the other surface of the L-shape is formed to extend below the reinforcing bar 14 of the non-pivot side cap 8.

As a result, the lower cap reinforcing plate 61 to which the weight of the door 2 or 3 is applied is made of a thicker steel plate than the upper cap reinforcing plate 60, so that the door 2 or 3 can be held firmly. become able to.

On the other hand, the pivot-side cap 7 is a cover member attached to the pivot-side end of the external member 4 like the non-pivot-side cap 8, and extends from the upper end to the lower end of the external member 4. It is a resin-made plate-shaped member formed by the above. The pivot-side cap 7 has a flange 7A formed at a front end and a rear end, and is formed so as to cover the flange 10 of the outer surface material 4 from the side.

Further, inside the pivot-side cap 7,
For example, a reinforcing bar 13 is formed at the front from the upper part to the lower part. The reinforcing bar 13 is formed integrally with the pivot-side cap 7, and has a plurality of bars 13A protruding from the front to the center. Thereby, the pivot-side cap 7 can be reinforced, and the pivot-side cap 7 can be formed firmly. The reinforcing bar 13 formed on the pivot-side cap 7
Like the non-pivot-side cap 8, the handle base 32 may be formed to avoid the handle base 32. Thus, the non-pivot-side cap 8 and the pivot-side cap 7 can use the same members, and the number of parts can be reduced.

On the other hand, inside the pivot-side cap 7,
A steel plate cap reinforcing plate 35 and a hinge reinforcing plate 36 are attached. The cap reinforcing plate 35 is a plate-like member having a substantially L-shaped cross section, and has a flange 35A formed on the front and rear surfaces. The cap reinforcing plate 35 is provided on the outer surface material 4.
The upper surface 35 is formed to have a dimension slightly smaller than the width dimension of the flange 10 formed at the upper end of the upper surface 35 and forms one L-shaped surface.
B is configured to contact the inside of the upper end of the outer surface material 4. Also, a side surface 35 constituting the other surface of the L-shape.
C is formed so as to extend downward, and a notch 37 is formed for abutting and attaching to the reinforcing bar 13 formed inside the pivot-side cap 7, and a front end of the notch 37 is A flange 38 that contacts the reinforcing bar 13 is formed.

The upper surface 35 of the cap reinforcing plate 35
B has a hinge hole 39 and a screw hole 40 as hinge engaging portions for matching the hinge hole 11 and the screw hole 12 formed in the flange 10 at the upper end of the outer surface material 4. With the cap reinforcing plate 35 aligned with the flange 10 at the upper end of the outer surface member 4, a hinge collar 41 with which the hinge member 9 is engaged is attached from above the hinge holes 11 and 39, and the screw holes 12 and 40 are A fixing screw 42 is attached from above.

As a result, the cap reinforcing plate 35 is attached inside the cap 7, so that the resin cap 7 can be reinforced and the strength of the doors 2, 3 can be improved.

Since the hinge hole 39 for engaging the hinge member 9 is formed integrally with the cap reinforcing plate 35, a hinge reinforcing plate for engaging the hinge member 9 is not required, and the number of parts can be reduced. Will be able to do it.

On the other hand, the hinge reinforcing plate 36 is a plate-like member having a substantially L-shaped cross section and made of a steel plate thicker than the cap reinforcing plate 35.
A is formed. The hinge reinforcing plate 36 is formed to have a dimension slightly smaller than the width dimension of the flange 10 formed at the lower end of the outer surface material 4. It is configured to abut against. Further, a side surface 36C constituting the other surface of the L-shape is formed to extend below the reinforcing bar 13 of the cap 7.

On the lower surface 36B of the hinge reinforcing plate 36,
A hinge hole 43 and a screw hole 44 are formed as hinge engagement portions for matching the hinge hole 11 and the screw hole 12 formed in the flange 10 at the lower end of the outer surface member 4.
With the hinge reinforcing plate 36 aligned with the flange 10 at the lower end of the outer surface member 4, a hinge collar 46 with which the hinge member 9 engages from below the hinge holes 11 and 43 is attached. A fixing screw 47 is attached from below the screw holes 12 and 44 via a hinge stopper 45 as shown in FIG.

Thus, the hinge reinforcing plate 36 with which the lower hinge member 9 engages is attached to the door 2 or 3 separately from the cap reinforcing plate 35, and the hinge reinforcing plate 36 is
Since the door 2 or 3 is made of a steel plate thicker than the cap reinforcing plate 35, the portion engaging with the lower hinge member 9 to which the load of the door 2 or 3 is applied is strongly reinforced to deform or drop the door 2 or 3. Can be prevented beforehand.

The inner surface member 5 is made of, for example, a stainless steel plate-like member.
A mounting groove 64 for mounting the O. 0 is formed. The gasket 30 is an annular member formed of, for example, a soft synthetic resin, has a hollow inside, and is detachably attached to an attachment groove 64 formed in the inner surface member 5.

With the above configuration, when assembling the door 2 or 3, the inner surface member 5 is brought into contact with the inner surface of the flange 10 of the outer surface member 4 to which the handle 50 is attached, as described above. Thereafter, the cap reinforcing plate 35 is provided on the pivotal side of the door 2 or 3.
After fixing the hinge reinforcing plate 36 with the fixing screws 42 and 47, the pivot-side cap 7 is attached from the pivot side. Further, the upper cap reinforcing plate 60 and the lower cap reinforcing plate 61 are attached to the non-pivot side of the door 2 or 3, and the non-pivot side cap 8 is attached from the non-pivoting side. The space between the inner surface material 5, the outer surface material 4, and the caps 7 and 8 is filled with a foamed heat insulating material. The doors 2 and 3 are configured by attaching the gasket 30 to the inner surface material 5.

This eliminates the need to form bent flanges on both sides of the outer surface material 4 on the inner surface material 5 side, thereby simplifying the shape of the outer surface material 4 and improving productivity. Will be able to

Further, since the caps 7 and 8 extend vertically on both left and right sides of the doors 2 and 3,
Dust is less likely to accumulate on the cap itself as compared to a case where the cap is attached to the upper and lower sides of the cap, and the sanitary condition is improved.

[0050]

As described above in detail, according to the present invention, a storage chamber is formed in a heat-insulating box body opening to the front, and the opening of the heat-insulating box body is insulated by hinges located on one side in the horizontal direction. In a cooling storage box closed and opened by a door pivotally supported on a box body, the door is made of a resin material connecting an outer surface material and an inner surface material and connecting the outer surface material and the inner surface material on both left and right sides. Since it is composed of the cap, the outer surface material, the inner surface material, and the heat insulating material filled in the space surrounded by the cap, it is necessary to form a flange bent toward the inner surface material on both sides of the outer surface material. As a result, the shape of the outer surface material can be simplified, and the productivity can be improved.

Also, since the caps extend up and down on both the left and right sides of the door, dust is less likely to accumulate on the caps themselves as compared to the case where the caps are mounted on the left and right sides of the door. Becomes

According to the second aspect of the present invention, in addition to the first aspect of the present invention, a cap reinforcing plate made of a steel plate is attached to the inside of the cap, and the hinge is engaged with the cap reinforcing plate. Since the joining portion is formed integrally, the cap made of resin can be reinforced and the strength of the door can be improved.

Further, since the hinge engaging portion with which the hinge engages is formed integrally with the cap reinforcing plate, a hinge reinforcing plate for engaging the hinge is not required, and the number of parts can be reduced. Become like

According to the third aspect of the present invention, in addition to the second aspect of the present invention, the upper and lower hinges are engaged with the hinge engaging portion with the upper and lower hinges in the left-right direction. Attach the reinforcing plate inside the door as a separate body from the cap reinforcing plate,
Since the hinge reinforcement plate is made of a thicker steel plate than the cap reinforcement plate, the portion that engages with the lower hinge where the load of the door is added is strongly reinforced to prevent the door from deforming and falling off Will be able to

According to the fourth aspect of the present invention, in addition to the first, second or third aspect of the present invention, the recessed handle base attached to the non-pivot side of the door and the inside of the cap are integrated. The reinforcing bar at a position corresponding to the handle base has a shape avoiding the handle base, so that the strength of the cap itself can be improved. Further, since the reinforcing bar at the position corresponding to the handle base is shaped to avoid the handle base, there is no problem in mounting the handle base.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cooling storage according to the present invention.

FIG. 2 is a plan sectional view of the cooling storage of the present invention.

FIG. 3 is an exploded perspective view of a door on a non-pivot side.

FIG. 4 is an enlarged exploded perspective view of a handle portion.

FIG. 5 is a vertical sectional side view of a door on a non-pivot side.

FIG. 6 is an exploded perspective view of a pivot side door.

FIG. 7 is a longitudinal side view of a pivot side door.

[Explanation of symbols]

 R Cooling storage 2, 3 Door 4 Outer surface material 5 Inner surface material 7 Pivot side cap 8 Non-pivot side cap 9 Hinge member 10 Flange 11 Hinge hole 12 Screw hole 13, 14 Reinforcement bar 18 Heat insulation box 22 Front opening 30 Gasket 32 Handle base 33 Notch 34 Screw hole 35 Cap reinforcing plate 35A flange 35B Upper surface 35C Side surface 36 Hinge reinforcing plate 36A Flange 36B Lower surface 36C Side surface 37 Notch 38 Flange 39, 43 Hinge hole 40, 44 Screw hole 41, 46 Hinge collar 42, 47 Fixing Screw 50 Handle 51 Handle body 52 Handle cover 53 Lower flange 54 Upper flange 55 Mounting part 56 Holding part 57 Nut member 60 Upper cap reinforcing plate 60A Flange 60B Upper surface 60C Side surface 61 Lower cap reinforcing plate 61A Flange 61 Lower surface 61C side 62 notch 63 flange 64 attachment groove

Claims (4)

[Claims] A storage chamber is formed in a heat-insulating box that opens to the front, and the opening of the heat-insulating box is rotatably supported by the heat-insulating box by hinges located on one side in the horizontal direction. A door that can be opened and closed by a door that is openable and closable, wherein the door includes an outer surface material and an inner surface material, a resin cap that connects the outer surface material and the inner surface material on both left and right sides, and an outer surface material and an inner surface material. And a heat insulating material filled in a space surrounded by the cap. 2. A cap reinforcing plate made of a steel plate is attached to the inside of the cap, and a hinge engaging portion with which the hinge engages is formed integrally with the cap reinforcing plate. 1 cold storage. 3. The hinge engaging portion is engaged with the upper hinge on one side in the left-right direction, and the hinge reinforcing plate with which the lower hinge is engaged is separate from the cap reinforcing plate. 3. The cooling storage according to claim 2, wherein the hinge reinforcing plate is mounted in a door, and the hinge reinforcing plate is made of a steel plate thicker than the cap reinforcing plate. 4. A reinforced handle base attached to a non-pivot side of the door, and a plurality of reinforcing bars integrally formed inside the cap, wherein the reinforcement is located at a position corresponding to the handle base. 4. The cooling storage according to claim 1, wherein the crosspiece is shaped to avoid the handle base.