JPH08254387A - Open showcase - Google Patents

Abstract

PURPOSE: To overlap the ends of the screen curtains of adjacent night covers and improve energy-saving by alternately arranging the night covers. CONSTITUTION: An open showcase 1 for cold reserving goods arranged in the case is designed to form a cold air curtain to a lower cold air inlet from an upper cold air outlet in the front opening of a casing 2. Respectively adjacent night covers 13 and 14 of a plurality of night covers covering the front part of the air curtain during non business hours are alternately arranged. Then, when the screen curtains 13N and 14N of the night covers 13 and 14 are extended, the end parts of the adjacent screen curtains 13N and 14N are overlapped one upon another so that a space between the screen curtains 13N and 14N is not formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase in which a front surface of a casing is opened to form a product inlet / outlet, and more specifically, it is used for displaying frozen / refrigerated food products in food stores. The present invention relates to a structure for mounting a night cover, which is more energy-saving in a frozen / refrigerated open showcase.

[0002]

2. Description of the Related Art In a self-service food store such as a supermarket, a frozen / refrigerated open showcase as shown in FIGS. 7 to 9 is used for displaying refrigerated food and fresh food.

The open showcase 51 has a plurality of shelves 53, 53 provided in a casing 52, for example.
... A product such as food is placed thereon, and cool air is rectified and blown out as an air curtain from the cool air outlet 54 provided at the upper part to the lower side of the casing 52 to form the lower exterior of the front opening of the casing 52. Cold air intake 55 provided in
The cool air is sucked from the inside of the casing 52 and the cool air is sent to the evaporator for cooling from the lower part of the duct 57 provided between the casing 52 and the inner panel 56 by the blower fan, and the products in the casing 52 are cooled by the continuation of this cycle. ing.

The upper front end of the casing 52 is covered with a canopy 58 which serves as a ceiling exterior, and a canopy illumination 59 is disposed below the canopy 58. The light from the canopy illumination 59 is reflected by a canopy top plate 58a to store the inside of the cabinet. Is evenly illuminated. Further, in front of the cool air outlet 54, there is formed a nosing portion 60 which is connected to the canopy top plate 58a and covers the front portion thereof. Inside the nosing portion 60, a dew-proof heater and a remote thermometer 63 for displaying the temperature inside the refrigerator are provided. The body of is arranged. Then, a night cover 62 having a roll-shaped shielding curtain 62N is attached immediately before the front wall of the nosing portion 60 of the canopy top plate 58, and when the store is closed at night, the shielding curtain 62N is pulled out to showcase the showcase. The opening of 51 is covered to reduce the load on the showcase.

[0005]

By the way, as shown in FIG. 7, the shielding curtains 62N and 62N wound in a roll shape have a length of about 3 cm (about 90 cm) to 4 shaku (about 90 cm) in consideration of easy opening and closing. It is manufactured with a frontage size of about 120 cm, and the night covers 62, 62 are linearly attached in series to the showcase. Therefore, there is also a structural limitation of the night covers 62, 62, and the shielding curtain 62 of the adjacent night covers 62.
A gap C of 10 to 20 mm was generated between N and 62N.
Therefore, the inside of the showcase has a negative pressure, and when the night cover shielding curtains 62N and 62N are shielded at night or the like, the gap C is generated.
From the above, the phenomenon that the outside air is sucked into the storage occurred, and the energy saving rate was only about 20 to 28% in the use of meat and fresh fish compared to when the night cover was not used.

The present invention has been made in view of the above circumstances,
The purpose is to arrange the night covers in an alternating manner and to overlap the left and right edges of the shielding curtains of the adjacent night covers, thereby eliminating the gap between the adjacent shielding curtains and sucking the outside air into the refrigerator. An object of the present invention is to provide an open showcase capable of reducing the running cost by reducing the phenomenon as much as possible, improving the energy saving rate.

[0007]

In order to achieve the above object, in the present invention, an air curtain of cold air is formed in a front opening of a casing from a cool air blowout port at an upper part toward a cool air intake port at a lower part, In an open showcase for keeping the products displayed in a refrigerator cool, out of a plurality of night covers that cover the front of the air curtain when not in operation, adjacent night covers are alternately arranged, and a shielding curtain for the night covers is provided. It is characterized in that the end portions of adjacent shielding curtains can be overlapped with each other when the sheet is pulled out. In other words, in the present invention, in order to overlap the shielding curtain end portions of the adjacent night covers, the night covers are alternately arranged and the shielding curtain surfaces are superposed when pulled out.

In the present invention, in order to reduce the load of the showcase during non-business hours and enhance the energy saving efficiency, the night covers arranged alternately are
It is necessary to arrange the shielding curtain surfaces so that they are closest to each other.

Further, the shielding curtain material of the night cover is
A film-shaped transparent vinyl body or an aluminum woven cloth having a heat insulating and ventilation effect is preferable in order to secure a close overlap and prevent the phenomenon of sucking outside air into the chamber as much as possible.

Further, it is preferable that the night covers arranged in a staggered manner are provided with a dimension adjusting elongated hole in the night cover casing or its mounting fitting because the mounting is easy and the overlap can be smoothly performed.

[0011]

[Operation] By adopting the above configuration, the present invention eliminates the gap between the shielding curtains of the night cover, and when the night cover is shielded (not in business), the negative pressure inside the cooled showcase is reduced. It is possible to prevent as much as possible the phenomenon that outside air is sucked into the refrigerator from the gap between the shielding curtains of the night cover due to
Using the same material as the conventional night cover, and under the same temperature conditions as the conventional showcase, the energy saving was about 39-48% compared to when the night cover was not used.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an overall perspective view of an open showcase of the present invention, and FIGS. 2 and 3 are a sectional side view and a side view of a main part showing a first embodiment of the present invention.

As shown in FIGS. 1 and 2, an open showcase 1 for storing and displaying products such as foods at a low temperature.
Is a ceiling part 2a having an opening, a back part 2b covering the back, a bottom part 2c at the bottom, a bottom front part 2d covering the bottom front, and a side view (not shown) covering both side surfaces. A casing 2 is integrally formed by filling 2e, and a duct 4 for circulating cold air is provided between these parts and the inner panel 3.

At the top end position of the casing 2, a honeycomb-shaped cool air outlet 5 is provided on the top plate 3a of the inner panel to rectify and blow out cool air as an air curtain, and blows out into the open showcase 1. The chilled cold is
It is guided into the duct 4 from a cold air suction port 6 opening at the rear of the lower front surface portion 2d. Further, in the lower duct 4, a blower fan (not shown) for sending the air taken in from the cold air suction port 6 and an evaporator (not shown) for cooling the air sent from the blower fan are provided. The cool air is blown out from the cool air outlet 5 through the duct 4 by the blower fan, and the circulation of the cool air cools the products placed on the display shelves 7, 7 in the open showcase 1. There is.

The front end of the upper part of the casing 2 is covered with a canopy 8 serving as a ceiling exterior, and a canopy illumination 9 is arranged below the canopy 8 and the light of the canopy illumination 9 is reflected by a canopy top plate 8a. Is evenly illuminated. In addition, a nosing portion 10 is formed in front of the cool air outlet 5 so as to cover the front of the canopy top plate 8a, and a dew-proof heater 11 is provided inside the nosing portion 10 (see FIG. 3). .

The front wall 10a of the nosing portion 10 is formed on an inclined surface which is tilted forward to form a wide space S inside, and a main body of a remote thermometer 12 for displaying the inside temperature of the space S. The scale 12a of the thermometer 12 is attached to the inclined surface of the front wall 10a of the nosing portion.

Between the front wall 10a of the nosing portion and the canopy top plate 8a, a night cover 1 which is the subject of the present invention is provided.
3, 14 are attached. For convenience of explanation, in FIG. 3, the night cover on the back side is 13, and the night cover on the front side is 14. As shown in FIGS. 3 to 5, in the open showcase 1 of the present invention, the night covers 13 and 14 are arranged in a staggered manner in order to overlap the left and right ends of the shielding curtains 13N and 14N of the adjacent night covers 13 and 14. One night cover 13 is provided with elongated holes 13a, 13b, 13c, 13d directly provided in the night cover casing 13e at a position where the upper part of the front wall 10a of the nosing portion is slightly bent at the cool air outlet 5 side. Screw 15 through
a, 15b, 15c, 15d, canopy top plate 8
It is attached to a (see FIGS. 3 and 4).

The other night cover 14 is formed by bending the upper part of the front wall 10a of the nosing portion deeper toward the cool air outlet 5 side and lowering the night cover 13 through the mounting brackets 16, 16 having a stepped shape. It is screwed to the canopy top plate 8a and the nosing portion front wall 10a, alternating with the night cover 13. That is, the night cover 14 has the long holes 14a, 14b, 1 provided in the night cover casing 14e.
4c, 14d through screws 17a, 17b, 17c, 1
It is attached to the mounting brackets 16 and 16 by 7d, and the mounting brackets 16 and 16 are provided in the upper long holes 16a, 16b and 16
It is attached to the bent vertical wall portion 10b of the front wall 10a of the nosing portion through screws c and 16d (FIGS. 3 and 5).
reference).

Of course, in the above case, the night covers 13 and 14 arranged alternately are arranged such that the surfaces of the shielding curtains 13N and 14N of the night covers are closest to each other.

Also, the night cover shielding curtains 13N, 14
The material of N is preferably a film-shaped transparent vinyl body or an aluminum woven cloth having a heat insulating and ventilation effect. And the shielding curtains 13N and 14N of this night cover
Is an automatic restoration type winding system in which the shafts 15 and 17 attached to the casing ends 13f, 13f, 14f, and 14f of the night cover casings 13e and 14e are equipped with springs.

Reference numeral 18 is an on / off switch of the canopy illumination 9, and 19 is a glow lamp of the canopy illumination 9. Further, 22 is an illumination attached to the top plate portion 3a of the internal panel 3, and 23 is a shelf illumination.

Next, a second embodiment of the present invention will be described with reference to FIG. It should be noted that the same components as those of the first embodiment are designated by the same reference numerals in the drawings and the description thereof is omitted.

In the second embodiment, the night cover 20,
21 with the unwinding port facing each other and the shielding curtain 2 of the night cover
The 0N and 21N are arranged close to each other, and are alternately arranged, and the canopy top plate is provided with screws (not shown) through the long holes (not shown) provided in the night cover casings of the night covers 20 and 21, respectively. It is attached to 8a.

Of course, in both of the embodiments, the shielding curtains 13N, 14N, 20N and 21N of the night covers are slightly larger than the conventional frontage dimension (about 50 to 80 mm), and the night covers 13 and 14 or the night covers 20 and 21 are large. By alternately arranging the shielding curtains 13N and 14N or the shielding curtains 20N and 21N of adjacent night covers so that the shielding curtain surfaces are in contact with each other. I removed the gap C. Therefore, when the night cover is down (not in business), the negative pressure inside the cooling case inside does not cause the outside air to be sucked into the inside through the gap between the night covers. Under the same material and the same temperature condition as the case, the energy saving was about 39 to 48% when compared to when the night cover was not used.

[0025]

Since the present invention is constructed as described above,
It has the following remarkable effects.

In the open showcases according to claims 1, 2 and 3, the night covers are arranged in a staggered manner so as to overlap the end portions of the shield curtains of the adjacent night covers, and the shield curtain surfaces are superposed. At the same time, because the shielding curtain surfaces of the night cover are arranged so as to be closest to each other, when the night cover is shielded, there is a phenomenon that the outside air is sucked into the refrigerator by the negative pressure inside the cooling case refrigerator. It can be prevented as much as possible. as a result,
Under the same material and same temperature condition as the conventional night cover and showcase, the energy saving was about 39 to 49% compared to when the night cover was not used.

Compared to when using the conventional night cover, this is per showcase of 8 shaku (about 240 cm),
This is a calculation that reduces the running cost by about 14,000 yen to 26,000 yen per year.

Further, in the invention of claim 4, since the long hole for adjusting the dimensions is provided in the night cover casing or the fitting of the showcase which is used by connecting a plurality of units in the store, the frontage is set even at the time of factory shipment. Can be shipped with a large night cover attached, and even at the shop floor, after connecting the showcases, the gap between the shielding curtains of adjacent night covers can be adjusted by moving the night covers and overlapping them to create a gap. It can be resolved.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an open showcase of the present invention.

FIG. 2 is a sectional side view of the first embodiment of the open showcase of the present invention.

FIG. 3 is a side view of a main part of the first embodiment of the present invention.

FIG. 4 is a perspective explanatory view showing a mounting structure of an upper night cover according to the first embodiment of the present invention.

FIG. 5 is a perspective explanatory view showing the mounting structure of the lower night cover of the first embodiment of the present invention.

FIG. 6 is a side view of essential parts of a second embodiment of the present invention.

FIG. 7 is an overall perspective view of a conventional open showcase.

FIG. 8 is a sectional side view of a conventional open showcase.

FIG. 9 is a side view of a main part of a conventional open showcase.

[Explanation of symbols]

1 Open Showcase 2 Casing 2a Ceiling 2b Rear 2c Bottom 2d Front 2e Insulation 3 Internal panel 3a Top panel 4 Duct 5 Cold air outlet 6 Cold air intake 7 Display shelf 8 Canopy 8a Top 9 Canopy lighting 10 Nosing Part 10a Front wall 10b Folded vertical wall part 11 Dew-proof heater 12 Remote sensing thermometer 12a Scale part 13 Night cover 13N Night cover shielding curtain 13a, 13b, 13c, 13d Long hole 13e Night cover casing 13f Casing end 14 Night cover 14N Night cover shielding curtain 14a, 14b, 14c, 14d Long hole 14e Night cover casing 14f Casing end 15 Shaft 15a, 15b, 15c, 15d Screw 16 Mounting bracket 16a, 16b, 16c, 16d, 16e, 16f, 1
6g, 16h long hole 17 shaft 17a, 17b, 17c, 17d screw 18 ON / OFF switch 19 glow lamp 20 night cover 20N night cover shielding curtain 21 night cover 21N night cover shielding curtain 22 illumination 23 shelf illumination S space C Gap

Claims (4)

[Claims] 1. An open showcase, in which an air curtain of cool air is formed from an upper cool air outlet toward a lower cool air inlet at a front opening of a casing to keep the products displayed in a refrigerator cold during non-business hours. Out of a plurality of night covers covering the front of the air curtain, adjacent night covers are alternately arranged so that the ends of the adjacent curtains can be overlapped with each other when the shields of the night covers are pulled out. An open showcase characterized by 2. The open showcase according to claim 1, wherein the staggered night covers are arranged so that their shielding curtain surfaces are closest to each other. 3. The shielding curtain material of the night cover is a film-shaped transparent vinyl body or an aluminum woven cloth having a heat insulating and ventilation effect, and
The open showcase described. 4. The staggered night covers are provided with long holes for dimension adjustment in a night cover casing or a fitting thereof.
Or the open showcase described in 3.