JP2000292045A - Refrigerated showcase - Google Patents

Abstract

(57) [Summary] [Problem] To provide an inexpensive refrigerated showcase that is easy to assemble and excellent in heat insulation efficiency. The present invention facilitates the use of a refrigerated showcase covered by an opening / closing door made of a single transparent plate that is perpendicular to the upper surface and the front surface of a case body, and enhances the heat insulation efficiency. The curved plate 6 has the property of being easily deformed, but it is difficult to deform by fitting the both sides into the groove of the rigid vertical frame member 3 so that the curved plate 6 is distorted by opening and closing the door. Disappears.
Further, when the door is formed of a plurality of curved plates, each curved plate is difficult to be deformed by the frame member. Can be higher. The securing of the hollow layer leads to preventing the airtightness from being reduced in the closed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerated showcase used for displaying, in a refrigerated state, soft drinks, dairy products and the like in cans and bottles for sale.

[0002]

2. Description of the Related Art Conventionally, canned or bottled beverages which are sold in stores or in stores without using a vending machine are so-called refrigerated refrigerators having a transparent body and a transparent plate opening / closing door in a refrigerator body surrounded by heat insulating material. They are displayed in showcases and sold. These beverages and the like are opened and taken out after identifying the type of the product from the outside in the closed state, and then closed again to keep the refrigerated state of the remaining products.

[0003] These refrigerated showcases are of various sizes, but generally the outer periphery is constituted by a heat insulating material or a two-layer glass plate supported by a beam member.
As the refrigerating apparatus, an apparatus using a refrigerating cycle in which a refrigerant is circulated using a compressor is employed.

[0004] Further, refrigerated showcases used in so-called convenience stores and shops such as transportation stations are required to be relatively small and light in weight in order to make them easy to move due to restrictions on installation locations. However, the above-mentioned refrigerated showcase has a difficulty in meeting such demands. Therefore, weight reduction has been performed by making the outer peripheral portion and the opening / closing door made of transparent plastic.

[0005]

However, even if the main body case and the door are made of plastic, if the opening / closing door made of a transparent material is provided on the upper surface of the refrigeration box, it becomes difficult to take out the display items in the lower tier when the refrigeration box is provided in a plurality of tiers. , If you put a door on the front to make it easier to take out the products placed on the bottom,
There is a disadvantage that it is difficult to remove the display items placed in the back. Further, in a small-sized showcase, there is a problem that a beam member provided at a boundary between the front surface and the upper surface obstructs the field of view and makes it difficult to see the displayed item.

Therefore, it has been attempted to integrate the front surface and the upper surface and open the door by lifting the front surface through a knob at the lower end of the front surface. However, a curved surface at the boundary from the front surface to the upper surface is attempted. However, it is difficult to form a high-precision film, and there is a problem that the close contact with the main body is coarse.

Furthermore, if the hollow portion is provided between the transparent plates with two or more door portions in order to increase the refrigeration efficiency, the transparent plate is distorted when a curved plate is used. It is troublesome to assemble them while maintaining uniform intervals. When two or more curved plates are laminated to increase the heat insulation effect and a predetermined gap is provided between the curved plates, if any of the curved plates is distorted, the gap disappears. As a result, the heat insulation effect is reduced, so that higher accuracy is required. For this reason, there is a problem that assembling becomes troublesome, resulting in an increase in manufacturing cost.

An object of the present invention is to provide an inexpensive refrigerated showcase having an opening / closing door capable of accurately assembling a plastic transparent plate having a plurality of curved surfaces into a frame member.

[0009]

In order to achieve the above object, a refrigerated showcase according to the present invention comprises a rigid vertical frame provided on both sides of an opening / closing door provided so as to extend from the upper surface of the case body to the front surface. The door is hardly distorted at the time of opening and closing by being fixed to the groove of the member, and the manufacturing cost is reduced by facilitating the manufacturing.

According to the present invention, the both sides of the curved plate are fixed to the grooves formed on the opposing surfaces of the pair of rigid vertical frame members, thereby suppressing the occurrence of distortion and improving the adhesion of the door. By doing so, the heat insulation is improved and the assembly is facilitated.

In the case where a plurality of curved plates are provided in parallel and at a predetermined interval to increase the refrigeration efficiency, the distortion is prevented by fixing the side portions of the respective curved plates to the grooves of the rigid horizontal frame member. The generation can be suppressed, and the interval between the hollow layers between the curved plates can be kept constant to prevent a decrease in heat insulation.

After the door is fixed with the sides of the curved plate fitted in the grooves of the pair of vertical frame members, the grooves of the horizontal frame member are fitted into the ends of the curved plate. By assembling by fixing, simplification of assembling and securing of the hollow layer are realized.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the overall appearance of a refrigerated showcase according to the present invention will be described. As shown in FIGS. 1 and 2, on the front side of a box-shaped case main body 1, doors 2 and 2 for opening and closing the inside of the case are provided adjacent to each other. Each door 2 has the same left and right sides, and the inside can be seen from above and from the front by two curved plates 6, 6 fitted in parallel to a door frame composed of the vertical frame member 3 and the horizontal frame members 4, 5. .

The case body 1 is made of a plastic molded product having high heat insulation, and has a bottom plate 1a, a back surface 1b, and a side plate 1c.
And the top plate 1d are integrally formed.

The upper end of each door 2 is swingably supported on the case body 1 by hinges 7, 7, and the lower end is brought into close contact with the permanent magnet 8 when the door is closed. The opening and closing operation of the door 2 is performed by a handle 9 attached to the lower center of the door.

Although the inside of the showcase has no single left and right boundary, the entire refrigerator compartment is a single room. However, shelves 10 are provided on the upper and lower sides so that products such as canned juice can be displayed in two stages. Refrigeration unit 11 containing a heat exchanger inside the case
And a display portion in front of the partition plate 12 are partitioned by a partition plate 12.
Here, an electronic refrigeration system using a Peltier element is employed as a cold source of the heat exchanger.

The vertical frame members inside the adjacent doors 2 and 2 can be brought into close contact with the outer surface of the intermediate support member 13 whose outer surface is formed to be the same as the outer peripheral curved surface of the side plate portion 1c. This allows the left and right doors to independently open and close only half of the showcase. Since the number of doors is not limited, the same doors can be arranged side by side.

Next, the structure of the door 2 will be described.
As shown in FIG. 3, the door 2 is fixed in a state where two curved plates 6, 6 are supported by the vertical frame members 3, 3 on both sides, the upper horizontal frame member 4, and the lower horizontal frame member 5. Have been. A gasket 14 for keeping airtight and cushioning is fixed inside the vertical frame member 3 (see FIG. 4).

The curved plate 6 is formed by bending a transparent acrylic material at a right angle and forming a curved portion with a predetermined radius of curvature. Between the two curved plates, a hollow layer S having a uniform gap at a predetermined interval is provided in order to increase the heat insulation efficiency. The number of curved plates may be 3 to 4 depending on the case.
It is also possible to use one sheet.

Since the two curved plates 6 and 6 have a large area and are liable to be distorted by the large area, the hollow layers S and 6 having a uniform gap between them are provided.
It is troublesome to attach it to the frame member in a state where is provided.
In addition, since the curved plates are distorted during use and cause a reduction in the airtightness of the case, in the present invention, these curved plates are fixed as follows.

As shown in FIG. 4, the cross section of the vertical frame member 3 on which the curved plate 6 is mounted has a shape that increases resistance to bending and buckling, that is, high rigidity. As an example of the cross-sectional shape, as shown in FIG. 2B, a groove portion 3a for fitting the side of the curved plate 6 at the bottom of the U-shaped cross section is formed. If the groove 3a and the side of the curved plate 6 are fixed to each other with an adhesive, the curved plates are fixed to the frame member while maintaining a constant gap. Becomes

The procedure for assembling the door 3 is as follows. A curved surface plate 6 is fitted into each groove 3a of one of the vertical frame members 3 at its side, and is fixed with an adhesive. The second curved plate is similarly fixed. Next, the other side of the curved plate 6 is fitted into the groove 3a of the other vertical frame member 3 and similarly fixed using an adhesive. At the time of this fixing, the side portions of the easily deformed curved plate are fitted and fixed in the grooves of the rigid vertical frame member, so that even if some distortion or the like occurs between the two curved plates, these grooves are used. It is possible to guarantee the existence of the hollow layers S which are corrected and are equally spaced.

Next, the upper horizontal frame member 4 and the lower horizontal frame member 5 are fitted into the ends of the respective vertical frame members 3, and the respective ends of the curved plate 6 are fixed to the grooves with an adhesive. It is desirable that the packing 14 be fixed to the vertical frame member 3 in advance.

Since the present invention is characterized by the structure of the door and the method of manufacturing the door, various structures can be adopted for the structure of the case body and the refrigeration system.

[0025]

According to the present invention, since both sides of the curved plate are fitted and fixed in the grooves formed in the rigid vertical frame member, a plurality of easily curved curved plates can be assembled without distortion. Therefore, a refrigerated showcase having a door that can be in close contact with the case body can be provided at low cost.

Further, since the plurality of curved plates are fixed to the rigid frame member, the door is not distorted at the time of opening and closing, and a highly airtight refrigerated showcase can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a refrigerated showcase as an example of an embodiment of the present invention.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is a developed perspective view of the door.

FIG. 4 shows a vertical frame member, (a) is a side view,
FIG. 2B is an enlarged cross-sectional view taken along line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Door 3 Vertical frame member 3a Groove part 6 Curved plate S Hollow layer

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kikuo Sakai 4-27-5 Nishio Hisashi, Arakawa-ku, Tokyo F-term (reference) 3L045 AA04 BA01 CA02 DA04 KA00 PA04

Claims (3)

[Claims] 1. A box-shaped case main body in which an outer wall portion of the upper surface and the front surface other than the area covered by the opening / closing door is made of a heat insulating material, and an opening provided to be continuous from the upper surface to the front surface. A door that is formed so as to be in close contact with the collecting edge and is swingably attached to the case body; the door includes a pair of vertical frame members made of a rigid member; A refrigerated showcase comprising: a transparent curved plate which is fixed in a groove formed on an opposing surface of the member and held in the vertical frame member in a desired shape. . 2. The door according to claim 1, wherein a plurality of the curved plates are fixed to the groove of the horizontal frame member.
A refrigerated showcase, wherein hollow layers are formed at predetermined intervals between the curved plates. 3. The curved door according to claim 1, wherein the door is fixed to each of the pair of vertical frame members in such a manner that each side of the curved panel is fitted into a groove of the pair of vertical frame members. A refrigerated showcase characterized by being assembled by fitting and fixing each groove of a horizontal frame member to a portion.