JPH11264652A - Low temperature showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dewing on a door with a simple configuration, related to a low-temperature showcase using a see-through door. SOLUTION: On the lower side of sliding doors 6 and 6 provided at an opening 3 of the heat-insulation box of a low-temperature showcase, a folding door 11 is installed for free attaching/detaching the folding door 11 comprises a heat ray reflection transparent panel or an opaque heat-insulation panel wherein the heat ray intruding from outside of a storage chamber 5 can be shielded or the storage chamber 5 side can be heat-insulated from the sliding doors 6 and 6 side. A bending part 11B which bends upward near the center of the folding door 11 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-temperature showcase for displaying and storing products such as ice cream and frozen foods in a storage room, and more particularly to a low-temperature showcase in which an upper opening is openably closed by a transparent door. .

[0002]

2. Description of the Related Art Conventionally, low-temperature showcases for displaying and storing frozen goods such as ice cream and frozen foods have been installed in stores such as convenience stores and supermarkets. As shown in FIGS. 31 to 36, the main body of the low-temperature showcase 100 is constituted by an insulating box 102 having an opening 103 on the upper surface.
A storage room 105 is formed therein.

A rail 107 is provided at an upper surface opening 103 of the heat-insulating box 102 so as to face the front and rear heat-insulating walls 104, 104, and the rail 107 is provided in two stages of an upper rail 107A and a lower rail 107B. ing. And
The upper rail 107A is formed to have a wider front-rear and left-right width, and the lower rail 107B is formed to have a smaller front-rear and left-right width.

[0004] Sliding doors 106, 106 are mounted on the upper rail 107A and the lower rail 107B, respectively, so as to be movable left and right (FIG. 32). The door 106 is formed by fitting a see-through glass plate 106B into a pair of surrounding frames 106A, and a handle 106C for opening and closing the door 106 is provided.

The opening 103 of the storage room 105 is
The storage room 105 is openably and closably closed by 6 and 106.
The inside is maintained at a predetermined freezing temperature. Then, by moving the handle 106C provided on one of the doors 106, the opening 103 is opened and the product in the storage room 105 is taken out. That is, the opening 103 of the heat-insulating box 102 is closed by the openable and closable sliding doors 106, 106, and the sliding doors 106, 106 are made transparent so that the goods stored in the storage room 105 can be seen. Sales promotion was planned.

[0006]

As described above, by making the door 106 of the low-temperature showcase 100 transparent, it is possible to select a product in the storage room 105 without opening the door 106. Has low heat insulation performance, and depending on the installation conditions of the low-temperature showcase 100, condensation may form on the door 106 (see FIG. 1).
Is indicated by a wavy line). When such dew condensation occurs, the internal transparency is significantly impaired, despite the fact that the glass door is angled.

Therefore, it is conceivable to use a multi-layer glass plate or a heat ray reflection film. However, direct sunlight may enter the storage room 105 depending on the place where the low-temperature showcase 100 is installed. In addition to the problem that the quality of the product deteriorates, the cost also rises.

In order to avoid this, FIGS.
As shown in FIG. 5, it has been considered that the heat insulating panel 114 is mounted on the upper and lower rails 107A and 107B instead of the door 106. However, this cannot function as a showcase.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and has an object to prevent dew condensation on a low-temperature showcase using a transparent door with a simple structure. And

[0010]

According to the first aspect of the present invention, there is provided a low-temperature showcase according to the present invention, wherein a storage chamber is formed in a heat-insulating box having an upper opening, and the upper opening is openably closed by a transparent door. A heat-reflective transparent panel or an opaque heat-insulating panel, and a folding door is provided below the door so as to be detachably mounted in the heat-insulating box body. Can be pulled up from the upper surface opening in the opened state.

In the low-temperature showcase according to the second aspect of the present invention, a storage room is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is closed and opened by a transparent door. A low-temperature showcase, comprising a sliding door detachably mounted on a lower side of a door in a heat insulating box body and made of a heat ray reflective transparent panel or an opaque heat insulating panel.

The low-temperature showcase according to the third aspect of the present invention is configured such that a storage room is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is opened and closed by a transparent sliding door. There is provided a self-winding roll sheet made of a heat-reflective transparent sheet or an opaque heat-insulating sheet, and one end of this roll sheet is fixed to one end of one door constituting the door. In addition, the other end is fixed to the other end of the other door body.

The low-temperature showcase according to a fourth aspect of the present invention is a low-temperature showcase, wherein a storage room is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is closed and opened by a transparent door. An opaque heat insulating panel is attached to the portion of the door where dew condensation occurs.

Further, in the low-temperature showcase according to the fifth aspect of the present invention, a storage room is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is opened and closed by a transparent door. , Equipped with a transparent plate provided in the dew condensation portion of the door,
This transparent plate has a predetermined interval below the door, is detachably attached to the door by a suction cup, and is provided with a sealing material around the door to reach the door.

Further, the low-temperature showcase according to the invention of claim 6 comprises a storage room in a heat-insulating box body opened on the upper surface,
The upper surface opening is configured to be openably and closably closed by a transparent door, and includes a transparent plate provided over the entire lower side of the door, and the transparent plate has a predetermined interval with the door, A low-temperature showcase characterized by being detachably attached to a door by a suction cup and having an edge in contact with the door.

In the low-temperature showcase according to the present invention, a storage chamber is formed in a heat-insulating box which opens on the upper surface, and the upper-surface opening is opened and closed by a transparent door. A heat ray reflective film is attached to the back surface of the door, and bands of black or a color close to black are formed at predetermined intervals on the surface of the door.

[0017]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a low-temperature showcase 1 to which the present invention is applied, FIG.
FIG. 3 is a vertical sectional side view taken along line AA of FIG. 2, FIG. 4 is a perspective view of a folding door 11 provided below the sliding door type door 6, and FIG. FIG. 6 is a front view of the upper section of the low-temperature showcase 1 provided, and FIG.
1 shows an upper vertical sectional front view of a low-temperature showcase 1 showing an open state.

The low-temperature showcase 1 is for displaying and storing frozen goods such as ice cream and frozen food. The main body is constituted by an insulating box 2 provided with an opening 3 on its upper surface. The inside is a storage room 5. An upper rail 7 composed of an upper rail 7A and a lower rail 7B, which are provided in upper and lower two stages on the peripheral wall of the conventional example, is formed in the upper surface opening 3 of the heat insulating box 2.

The upper rail 7A has a wider front, rear, left and right width than the lower rail 7B, and a pair of sliding door-type doors 6, 6 are mounted on the respective rails 7A, 7B so as to be movable left and right. . Each of the doors 6, 6 is provided with a surrounding frame 6A and a transparent glass plate 6 which can be seen through the frame 6A.
B. One side of the frame 6A has a handle 6C
The door 6 is configured to be openable and closable left and right by operating the handle 6C. The opening 3 of the storage room 5 is closed by doors 6, 6, whereby the inside of the storage room 5 is maintained at a predetermined freezing temperature.

A step 9 is provided in the heat insulating box 2 at a small interval below the rails 7A and 7B, and the step 9 is formed inside the lower rail 7B.
A folding door 11 having handles 11A provided on both edges thereof is detachably mounted on the stepped portion 9.
Is composed of a heat ray reflective transparent panel or an opaque heat insulating panel. The folding door 11 is provided with two bent portions 11B near the center at a small interval, and the bent portion 11B can be bent by pulling up one of the left and right handles 11A. (FIG. 4).

That is, the folding door 11 is provided below the doors 6 and 6 and is removably installed in the heat-insulating box body 2. By pulling the handle 11A of the folding door 11 provided outside the box and pulling it out of the refrigerator, the bent portion 11B is bent and can be opened upward (FIG. 6).

As described above, the folding door 1 is provided inside the doors 6 and 6.
1, the folding door 11 enters the storage room 5 from outside through the sliding doors 6, 6 even under conditions where the outside air temperature and humidity are poor, such as when the low-temperature showcase 1 is installed outdoors. In this way, the storage room 5 and the sliding doors 6, 6 can be insulated from each other.

As a result, it is possible to avoid or significantly reduce the condensation on the glass plate 6B as shown by the dashed line in FIG. 1, and to improve the cooling capacity in the storage room 5.

Further, since the folding door 11 is detachably installed inside the sliding doors 6, 6, the storage room 5 in an indoor room or the like is provided.
The folding door 11 can be removed and placed under conditions where the temperature and humidity inside are stable. In particular, even when the folding door 11 is attached, the folding door 11 can be pulled up from the upper surface opening 3 by bending upward with one of the sliding door type doors 6 being opened, so that the delivery of the product is easy. It is possible to do.

Next, FIGS. 7, 8, 9 and 10 show another embodiment of the low-temperature showcase 1 of the present invention. in this case,
Sliding door-type doors 6, 6 as described above are placed on the upper rail 7 in the heat insulating box 2, whereby the upper surface opening 3 of the heat insulating box 2 is opened.
Is closed. Below the sliding doors 6, 6, a lower rail 8 is provided at a small interval, and the lower rail 8 is located inside the lower rail 7B of the upper rail 7.

Like the upper rail 7, the lower rail 8 also includes an upper rail 8A provided in two stages above and below the peripheral wall of the heat insulating box 2.
A lower rail 8B is formed. The upper rail 8A provided on the upper side has a wider front-rear and left-right width, and the lower rail 8B provided on the lower side has a smaller front-rear and left-right width than the upper rail 8A. On the upper rail 8A and the lower rail 8B of the lower rail 8, sliding doors 12, 12 which can be opened and closed, respectively, are placed. The sliding doors 12, 12 are constituted by a heat ray reflecting transparent panel or an opaque heat insulating panel.
12A, 12A are handles for opening and closing the sliding doors 12, 12.

As described above, the sliding doors 12, 12 are provided below the sliding doors 6, 6 on the upper side of the heat insulating box 2, and the sliding doors 12, 12 are constituted by a heat ray reflecting transparent panel or an opaque heat insulating panel. Therefore, it is possible to cut off heat rays entering the storage room 5 from the outside,
It is possible to insulate the door and the doors 6, 6 provided above the sliding doors 12, 12.

If the temperature and humidity in the storage room 5 are stable and the sliding doors 12, 12 are unnecessary as described above, they can be removed and placed. In addition, since either one of the sliding doors 12 can be easily opened with one of the doors 6 being opened, it is possible to easily carry out delivery of the product.

Next, FIGS. 11, 12, 13, and 14 show another embodiment of the low-temperature showcase 1 of the present invention. In this case, sliding doors 6 similar to those described above are mounted on the upper rail 7 on the peripheral wall of the heat insulating box 2, thereby closing the upper opening 3 of the heat insulating box 2. Further, a pair of steps 10, 10 are provided in front and back of the heat-insulating box 2 below the sliding doors 6, 6 at a small interval, and the steps 10, 10 are located below the upper rail 7. It is located inside the rail 7B.

In this case, a roll sheet 13 is attached below the doors 6,6. The roll sheet 13 has one end fixed to the right frame 6A of the right door 6 and the other end fixed to the left frame 6A of the left door 6. The roll sheet 13 is formed of a heat ray reflective transparent sheet or an opaque heat insulating sheet. The roll sheet 13 is configured to be able to be automatically wound around a substantially center.

Further, the roll sheet 13 is provided at a small interval below the sliding doors 6, 6 placed in the opening 3 of the heat insulating box 2. When the opening 3 of the storage room 5 is closed, the roll sheet 13 covers substantially the entire lower side of the doors 6, 6. Further, when the right sliding door 6 or the left sliding door 6 is opened, it is wound substantially at the center, and the roll sheet 13 is configured so as not to be slacked down and hinder the product removal (FIG. 14).

As described above, the rollable roll sheet 13 is attached to the lower side of the sliding doors 6, 6 on the upper side of the heat insulating box 2, and the roll sheet 13 is made of a heat ray reflective transparent sheet or an opaque heat insulating sheet. When the doors 6 and 6 are closed, the roll sheet 13 can be covered with the opening 3 of the storage room 5 below the sliding doors 6 and 6. Through which heat rays entering the storage room 5 from the outside can be cut off.
It is possible to insulate the side and the sliding doors 6 and 6 from each other. Further, since the roll sheet 13 can be wound in accordance with the opening and closing of one of the sliding doors 6, there is no hindrance to delivery of the product.

Next, FIGS. 15, 16, 17 and 18 show still another embodiment of the low-temperature showcase 1 of the present invention. Also in this case, a pair of sliding doors 6, 6 are placed on the upper rail 7 on the peripheral wall of the heat insulating box 2 as described above, thereby closing the upper opening 3 of the heat insulating box 2. Each of the double-doors 6, 6 has an opaque insulation panel 14,
14 are attached, and the heat insulating panels 14, 14
Is attached to the portion of the glass plates 6B, 6B constituting the sliding doors 6, 6 where condensation occurs (the near side shown in FIG. 1). The heat insulating panels 14 and 14 are attached to the lower surfaces of the sliding doors 6 and 6, and are attached to about a half below the center of the sliding doors 6 and 6. Thus, the heat rays entering the storage room 5 are shut off, and the dew condensation generated portions of the sliding doors 6, 6 are insulated from the storage room 5 side.

As described above, the opaque heat insulating panels 14 and 14 are stuck on the lower surfaces of the sliding doors 6 and 6 on the upper side of the heat insulating box 2 and are also stuck to about half of the sliding doors 6 and 6 below the center. Since it is attached, it is possible to cut off heat rays that enter the storage room 5 from the outside, and at the same time, the sliding doors 6, 6
Can be thermally insulated from the inside of the storage room 5. In addition, the heat insulation panels 14 and 14 can be attached to an existing sliding door, and the heat insulation panels 14 and 14 can be attached.
Since 14 is opaque, it is also possible to give an advertisement for a product. Further, even under conditions where the outside air temperature and humidity are poor, such as when the low-temperature showcase 1 is installed outdoors, it is possible to prevent condensation on the surfaces of the sliding doors 6 and 6 and deterioration of the quality of products in the storage room 5 as described above. Will be able to

Next, FIGS. 19, 20, 21 and 22 show still another embodiment of the low-temperature showcase 1 of the present invention. Also in this case, a pair of sliding doors 6, 6 are placed on the upper rail 7 on the peripheral wall of the heat insulating box 2 as described above, thereby closing the upper opening 3 of the heat insulating box 2. And
In this case, the transparent plates 15, 15 are attached to the double doors 6, 6. The transparent plates 15, 15 are attached to the surfaces of the glass plates 6B, 6B constituting the sliding doors 6, 6, which are approximately half below the center where dew condensation occurs.

Around the transparent plates 15, 15, a packing 15 A as a sealing material that does not allow water droplets and air to pass.
15A are provided, and suckers 15B are provided at the four corners.
Has been fixed. The transparent plates 15, 15 are fixed to the lower surfaces of the sliding doors 6, 6 with suction cups 15B, so that the packings 15A, 15A provided around the transparent plates 15, 15 become glass plates 6B, 6B. An air layer is formed on the rear surface of the sliding doors 6, 6 in contact with the lower surface of the door 6, and this is defined as a heat insulating space 16. Thereby, the dew condensation generated portions of the doors 6 and 6 can be insulated from the storage room 5 side.

As described above, the transparent plates 15, 15 are attached to the lower surfaces of the sliding doors 6, 6 on the upper side of the heat insulating box 2 by a plurality of suction cups 15B. , 6 are attached to about a half below the center, and predetermined insulating spaces 16, 16 are formed on the back surfaces of the sliding doors 6, 6. With this, it is possible to block heat rays that enter the storage room 5 from the outside, and at the same time, the sliding door type door 6,
It becomes possible to insulate the dew condensation portion 6 from the inside of the storage room 5.

Further, the transparent plates 15 are provided with a plurality of suction cups 15.
Can be detachably attached to the sliding doors 6, 6 by B... If the temperature and humidity in the storage room 5 are stable and the transparent plates 15, 15 are unnecessary as described above, remove and place them. And can be attached to existing sliding doors. Further, even under conditions where the outside air temperature and humidity are poor, such as when the low-temperature showcase 1 is installed outdoors, it is possible to prevent condensation on the surfaces of the sliding doors 6 and 6 and deterioration of the quality of products in the storage room 5 as described above. Will be able to

Next, FIGS. 23, 24, 25 and 26 show still another embodiment of the low-temperature showcase 1 of the present invention. Also in this case, a pair of sliding doors 6 and 6 are placed on the upper rail 7 on the peripheral wall of the heat insulating box 2 as described above, thereby closing the upper opening 3. Such sliding doors 6, 6
Transparent plates 17, 17 similar to those described above are attached to the entire lower surfaces of the glass plates 6B, 6B. The suction cups 15B are fixed to the four corners of the transparent plates 17 and 17 in the same manner as described above, and the surroundings of the transparent plates 17 and 17 are in close contact with the lower surfaces of the frames 6A and 6A of the sliding doors 6 and 6. It is configured to touch.

The transparent plates 17, 17 are fixed to the lower surfaces of the sliding doors 6, 6 with suction cups 15B, so that the periphery of the transparent plates 17, 17 is the frame 6A of the sliding doors 6, 6. , 6A, an air layer is formed on the entire rear surface of the sliding doors 6, 6 between the glass plates 6B, 6B to form heat insulating spaces 16, 16, respectively. Thus, the entire area of the doors 6, 6 can be insulated from the storage room 5 side.

As described above, the transparent plates 17, 17 are attached to the lower surfaces of the sliding doors 6, 6 on the upper side of the heat insulating box 2 by a plurality of suction cups 15B, and the transparent plates 17, 17 are attached to the sliding door 6, respectively. , 6 are formed in close contact with the entire lower side to form predetermined heat insulating spaces 16, 16 on the rear surfaces of the sliding doors 6, 6. This makes it possible to block the heat rays that enter the storage room 5 from the outside and to insulate the dew condensation of the sliding doors 6 from the inside of the storage room 5.

The transparent plates 17, 17 are suction cups 15B.
Can be detachably attached to the lower surface of the sliding doors 6, 6 so that if the temperature and humidity in the storage room 5 are stable and the transparent plates 17, 17 are unnecessary as described above, they can be removed and placed. It can be attached to existing sliding doors. Further, even under conditions where the outside air temperature and humidity are poor such as when the low-temperature showcase 1 is installed outdoors, it is possible to prevent condensation on the surfaces of the sliding doors 6 and 6 and deterioration of the quality of the products in the storage room 5 as described above. Will be able to do it.

Next, FIGS. 27, 28, 29 and 30 show still another embodiment of the low-temperature showcase 1 of the present invention. Also in this case, a pair of sliding doors 6, 6 are placed on the upper rail 7 on the peripheral wall of the heat insulating box 2 as described above, thereby closing the upper opening 3 of the heat insulating box 2. And
In this case, the heat ray reflective films 18 and 18 are stuck on the back surfaces of the glass plates 6B and 6B constituting the doors 6 and 6 respectively, and a band 19 of a color similar to black or black is formed on the surfaces of the glass plates 6B and 6B. Are formed at predetermined intervals.

That is, a plurality of bands 19... Of a predetermined width are provided on the surfaces of the sliding doors 6, 6 in a horizontal stripe shape (in this case, a vertical stripe, an oblique stripe, a lattice stripe pattern, a polka dot pattern or the like is provided in black). And the sliding door 6,
The heat ray reflective films 18 and 18 are attached to the back surface of 6.

At this time, the goods in the storage room 5 can be easily visually recognized from the gaps between the bands 19... Can be absorbed. The light that enters the storage room 5 without being absorbed by these bands 19.
8 and 18 are reflected.

As described above, a plurality of strips 19 having a predetermined width are formed in a horizontal stripe pattern on the upper surfaces of the glass plates 6B, 6B of the sliding doors 6, 6 provided on the heat insulating box 2, and the sliding doors are provided. Since the heat ray reflective films 18, 18 are attached to the back surfaces of the doors 6, 6, light entering the storage room 5 from the outside can be absorbed by these bands 19. ..Heat ray reflection film 1 for remaining light passing between
8, and 18 can be reflected.

In this case, the temperature of the sliding doors 6, 6 can be increased by absorbing the light in the bands 19... ., The temperature of the sliding doors 6, 6 can be further increased. As a result, dew condensation on the sliding doors 6 can be prevented.

Since the plurality of bands 19 are formed at predetermined intervals, the inside of the storage room 5 can be seen through the gap, and the inside of the storage room 5 can be easily visually recognized. At the same time, it is possible to attach the band 19... Or the heat ray reflective film 18 to the existing sliding door. This prevents condensation on the surfaces of the sliding doors 6 and 6 and deterioration of the quality of the products in the storage room 5 even under conditions where the outside air temperature and humidity are poor, such as when the low-temperature showcase 1 is installed outdoors. Will be able to do it.

[0049]

As described above in detail, according to the first aspect of the present invention, the storage chamber is formed in the heat insulating box which opens on the upper surface, and the upper surface opening is closed by a transparent door so that it can be opened and closed. The low-temperature showcase comprises a folding door which is detachably mounted on the lower side of the door inside the heat-insulating box body and is made of a heat-reflective transparent panel or an opaque heat-insulating panel. Can be pulled up from the upper surface opening in the open state, so that the folding door can block heat rays entering from outside through the door, or insulate the storage room side and the door side from each other.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the folding door is removably installed in the heat-insulating box, it can be removed and placed if it is unnecessary, and can be lifted up from the upper opening by bending upward with the door open. Therefore, it does not hinder the delivery of the product, and is convenient.

According to the second aspect of the present invention, in the low-temperature showcase in which the storage chamber is formed in the heat insulating box body opened to the upper surface, and the upper surface opening is opened and closed by a transparent door, On the side, a detachable sliding door made of a heat ray reflective transparent panel or an opaque heat insulating panel is provided so as to be detachably installed in the heat insulating box body, and this sliding door blocks heat rays entering from outside through the door, or And the door side can be insulated.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the sliding door is removably installed in the heat insulating box, it can be detached and placed when it is unnecessary, and can be easily opened and closed. It is very convenient.

According to the third aspect of the present invention, there is provided a low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is openably closed by a transparent sliding door. On the lower side, a self-winding roll sheet made of a heat ray reflective transparent sheet or an opaque heat insulating sheet is provided, and one end of this roll sheet is fixed to one end of one door body constituting a door, and the other end is Since it was fixed to the other end of the other door, the roll sheet covered the lower side of the door when the door was closed, and cut off heat rays entering from outside through the door,
Alternatively, the storage room side and the door side can be insulated.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the roll sheet is wound in accordance with the opening and closing of the door, it does not hinder the delivery of the product, and the roll sheet can be removed together with the door, which is very convenient. Further, since the roll sheet is attached to the existing door, the versatility is enhanced.

According to the fourth aspect of the present invention, in a low-temperature showcase in which a storage room is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is opened and closed by a transparent door, the condensation of the door is reduced. Since the opaque heat insulating panel is attached to the generation part, it becomes possible to block the heat rays entering from the outside through the door and to insulate the dew condensation generation part of the door from the storage room side.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the heat insulating panel is opaque, it can be used for advertisement of merchandise and the like, which is very convenient. In addition, since the heat insulating panel can be attached to an existing door, it is also versatile.

According to the fifth aspect of the present invention, in a low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is opened and closed by a transparent door, the condensation of the door is provided. A transparent plate is provided on the generating part, and this transparent plate has a predetermined interval under the door, is detachably attached to the door by a suction cup, and a seal material that reaches the door is provided around the door, so the door A heat insulating space can be formed on the back surface of the door by the transparent plate and the door at the portion where dew condensation occurs.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the transparent plate is detachably attached to the door by the suction cup, it can be easily attached and detached, and can be detached and installed when unnecessary, and can be attached to the existing door, so that it is versatile. It will be.

According to the sixth aspect of the present invention, in a low-temperature showcase in which a storage room is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is closed by a transparent door so as to be openable and closable, A transparent plate is provided over the entire side, and this transparent plate has a predetermined interval with the door, and is detachably attached to the door by a suction cup, and the edge of the transparent plate is in contact with the door, so the transparent plate and the door Thereby, a heat insulating space can be formed in the entire rear surface of the door.

Thus, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent condensation on the door surface and deterioration of the quality of products in the storage room. become able to.

In particular, since the transparent plate is detachably attached to the door by the suction cup, it is easy to attach and detach, and can be detached and installed when unnecessary, and can be attached to the existing door, so that it is versatile. It will be.

According to the seventh aspect of the present invention, in a low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is openably closed by a transparent door, And a band of black or a color similar to black was formed at predetermined intervals on the surface of the door, so that part of the light incident on the door from the outside was absorbed by the band, and the rest was The light passes through the space between the heat ray reflection films and is reflected.

Since the reflected light is also partially absorbed by the band, the temperature of the entire door including the band is effectively increased. As a result, even under conditions where the outside air temperature and humidity are poor, such as when a low-temperature showcase is installed outside the refrigerator, it is possible to effectively prevent dew condensation on the door surface and quality deterioration of storage room products. Become.

In particular, since the bands are formed at predetermined intervals, it is possible to see through the storage room from the gap, and it is possible to maintain good visibility in the storage room.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low-temperature showcase of the present invention.

FIG. 2 is a front view of the low-temperature showcase of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view of a folding door provided below a sliding door.

FIG. 5 is an upper longitudinal sectional front view of a low-temperature showcase provided with a folding door below a sliding door.

FIG. 6 is an upper longitudinal sectional front view of the low-temperature showcase showing the opened state of the sliding door and the folding door of FIG. 5;

FIG. 7 is a top vertical sectional side view of a low-temperature showcase provided with a sliding door below a sliding door type door.

8 is a perspective view of a sliding door and a sliding door of the low-temperature showcase of FIG. 7;

9 is an upper vertical sectional front view of the low-temperature showcase of FIG. 7;

10 is an upper vertical sectional front view of the low-temperature showcase shown in FIG. 7 with a door and a sliding door opened.

FIG. 11 is an upper longitudinal sectional side view of a low-temperature showcase provided with a roll sheet below a sliding door.

FIG. 12 is a perspective view of a sliding door and a roll sheet of the low-temperature showcase of FIG. 11;

FIG. 13 is an upper vertical sectional front view of the low-temperature showcase of FIG. 11;

14 is an upper longitudinal sectional front view showing a state where a door of the low-temperature showcase of FIG. 11 is opened.

FIG. 15 is an upper longitudinal sectional side view of a low-temperature showcase in which a heat insulating panel is attached to a lower surface of a sliding door.

FIG. 16 is a perspective view of the low-temperature showcase door of FIG.

FIG. 17 is an upper longitudinal sectional front view of the low-temperature showcase of FIG. 15;

18 is an upper longitudinal sectional front view showing a state where a door of the low-temperature showcase of FIG. 15 is opened.

FIG. 19 is an upper vertical sectional side view of a low-temperature showcase in which a transparent plate is attached to a lower surface of a sliding door.

FIG. 20 is a perspective view of a door of the low-temperature showcase of FIG. 19;

FIG. 21 is an upper longitudinal sectional front view of the low-temperature showcase of FIG. 19;

FIG. 22 is an upper longitudinal sectional front view showing a state where a door of the low-temperature showcase of FIG. 19 is opened.

FIG. 23 is an upper longitudinal sectional side view of a low-temperature showcase in which a heat insulating space is provided by a transparent plate over the entire lower surface of a sliding door.

FIG. 24 is a perspective view of a door of the low-temperature showcase of FIG. 23;

FIG. 25 is an upper longitudinal sectional front view of the low-temperature showcase of FIG. 23;

26 is an upper vertical sectional front view of the low-temperature showcase of FIG. 23 with a door opened.

FIG. 27 is an upper longitudinal sectional side view of a low-temperature showcase in which a heat ray reflective film is provided on a lower surface of a sliding door and a band is provided on an upper surface.

FIG. 28 is a perspective view of a door of the low-temperature showcase of FIG. 27;

FIG. 29 is an upper longitudinal sectional front view of the low-temperature showcase of FIG. 27;

30 is an upper vertical sectional front view of the low-temperature showcase of FIG. 27 with a door opened.

FIG. 31 is a side view of a low-temperature showcase provided with a conventional sliding door.

FIG. 32 is a sectional view taken along line BB of FIG. 31;

FIG. 33 is an upper vertical sectional side view of a conventional low-temperature showcase using a heat insulating panel.

FIG. 34 is a perspective view of the heat insulating panel of FIG. 33.

FIG. 35 is an upper longitudinal sectional front view of the low-temperature showcase of FIG. 33;

FIG. 36 is an upper longitudinal sectional front view of the low-temperature showcase with the heat insulating panel of FIG. 33 opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 2 Insulated box 3 Opening 5 Storage room 6 Sliding door 6A Frame 6B Glass plate 6C Handle 7 Upper rail 9 Stepped part 11 Folding door 11B Bent part 13 Roll sheet 14 Insulation panel 15 Transparent plate 15B suction cup 16 Insulated space 17 Transparent plate 18 Heat ray reflective film 19 belt

Claims (7)

[Claims] 1. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is openably closed by a transparent door, wherein the heat-insulating box is provided below the door. A folding door that is detachably installed in the body and is made of a heat ray reflective transparent panel or an opaque heat insulating panel is provided. By folding the folding door upward, the folding door can be pulled up from the upper surface opening with the door opened. A low-temperature showcase characterized by the fact that: 2. A low-temperature showcase, wherein a storage chamber is formed in a heat insulating box body opened to the upper surface, and the upper surface opening is openably closed by a transparent door, wherein the heat insulating box is provided below the door. A low-temperature showcase which is detachably installed in a body and comprises an openable sliding door made of a heat-ray reflecting transparent panel or an opaque heat insulating panel. 3. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is openably and closably closed by a see-through sliding door type door. A self-winding roll sheet made of a heat-reflective transparent sheet or an opaque heat insulating sheet. One end of this roll sheet is fixed to one end of one door constituting the door, and the other end is the other end. A low-temperature showcase fixed to the other end of the door body. 4. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened on the upper surface, and the upper surface opening is closed by a transparent door so as to be openable and closable. Low-temperature showcase with panels attached. 5. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is openably closed by a transparent door. The transparent plate has a predetermined interval below the door, is detachably attached to the door by a suction cup, and has a sealing material around the door to the door. Features a low-temperature showcase. 6. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box that opens to the upper surface, and the upper surface opening is closed by a transparent door so as to be openable and closable. A transparent plate provided at a predetermined distance from the door, which is detachably attached to the door by a suction cup, and the edge of which is in contact with the door. Low temperature showcase. 7. A low-temperature showcase in which a storage chamber is formed in a heat-insulating box body opened to the upper surface, and the upper surface opening is closed by a transparent door so as to be openable and closable. A low-temperature showcase, wherein a black band or a band similar to black is formed at predetermined intervals on the surface of the door.