JP5558880B2 - Showcase - Google Patents

Description

  The present invention relates to a showcase that displays products while heating them in a display room.

  Conventionally, a store such as a convenience store is provided with a service table on which a cash register is placed. In addition to the cash register, a desktop cooling showcase, a warming showcase, and the like are placed on the service table, and promotional sales such as cooled or heated beverages and cooked foods are performed.

  For example, as shown in Patent Document 1, the heating showcase is generally displayed so that products in the display room can be seen through from the outside, and the front and rear surfaces and both side surfaces of the main body are configured with transparent walls that can be seen through. Yes. In this display room, a shelf composed of rectangular plates made of thin steel plates is installed, and the plate is used as an electric heater (a heater such as a code heater or a sheath heater other than the lamp heater described later in this application). Is called an electric heater, the same applies hereinafter), and the food on the shelf is heated by heat conduction.

  As another heating showcase, for example, as shown in Patent Document 2, a lamp heater is provided above a shelf erected in the display room, and the food on the shelf is heated by radiant heat from the lamp heater. There is. In this case, the lamp heater has a role of illuminating the display room in addition to the role as a heating means, and the lighting effect of the displayed product is improved by the warm color system illumination by the lamp heater. .

Japanese Patent Laid-Open No. 10-43012 JP 2006-158805 A

  However, in the heating by the lamp heater as in Patent Document 2 described above, there is a problem in that the power consumption in the lamp heater increases and the running cost increases. Further, since the lamp heater also serves as illumination, it is difficult to adjust the energization amount, and there is a problem that precise temperature adjustment cannot be performed. For this reason, heating the food too much has caused a rapid deterioration. Furthermore, since the lamp heater is always energized, the life of the heater itself is shortened, the replacement maintenance becomes complicated, and the lamp heater is relatively expensive, leading to an increase in cost. there were.

  Therefore, as in Patent Document 1 described above, when an electric heater is attached to the back side of the upper surface of the shelf and the product on the shelf is heated by heat conduction from the electric heater, the temperature adjustment is performed by controlling energization of the electric heater. However, since the heat insulating material is provided in the lower shelf of the electric heater, the heating action hardly reaches below the shelf. On the other hand, even if an electric heater is provided on the bottom surface of the display room and the product on the bottom surface is heated, there is also a product on the bottom surface, so the effect of the heating action of the electric heater on the bottom surface on the lower side of the shelf. Therefore, the temperature in the display room under the shelf is always low.

  The present invention has been made in order to solve the conventional technical problem, and even when the display room with shelves is heated by an electric heater, the display room can be heated uniformly. The purpose is to provide a showcase.

In order to solve the above problems, a showcase of the present invention comprises a display chamber in a main body, and displays products while heating products in the display chamber, and a shelf for displaying products in the display chamber. A product display space is constructed in the display chambers above and below the shelf, and the shelf has an internal hollow structure. The hollow interior has a space between the upper surface and the lower surface of the shelf. There is a mounting plate, and an electric heater is mounted on the mounting plate. The radiant heat from the electric heater, the air above the mounting plate in the shelf of the internal hollow structure heated by the electric heater, and the mounting The upper and lower surfaces of the shelf are heated by air below the plate .

The showcase of the invention of claim 2 is characterized in that, in the above, the electric heater is mounted on the upper surface of the mounting plate.

  The showcase of the invention of claim 3 is characterized in that in each of the above inventions, an electric heater is provided on the bottom surface of the display chamber located below the shelf.

  A showcase according to a fourth aspect of the present invention is characterized in that in each of the above-mentioned inventions, a door is provided for closing the opening of the display chamber so as to be freely opened and closed.

  The showcase of the invention of claim 5 is characterized in that in each of the above inventions, a warm color LED lighting device for illuminating the display room is provided.

According to the present invention, in a showcase in which a display room is configured in the main body and products are displayed while being heated in the display room, shelves for product display are erected in the display room, and above and below the shelves. The product display space is configured in the display room, and the shelf has an internal hollow structure, and the electric heater is housed in the hollow interior with a space between the upper surface and the lower surface of the shelf. The upper surface and the lower surface of the shelf are heated by the radiant heat and the air in the inner hollow shelf heated by the electric heater.
In particular, since the mounting plate is provided with a space between the upper surface and the lower surface of the shelf and the electric heater is mounted on the mounting plate, the electric heater can be mounted stably. And, because the upper surface and the lower surface of the shelf are heated by the radiation heat from the electric heater and the air on the upper side of the mounting plate and the air on the lower side of the mounting plate in the shelf of the internal hollow structure heated by the electric heater, A heating action can be exerted on the lower surface of the shelf from the entire mounting plate heated by the electric heater. Thereby, the display chamber under the shelf can be heated more efficiently.

  In this way, when the bottom surface of the shelf is heated and the temperature rises, even when an electric heater is provided on the bottom surface as in claim 3, the display chamber on the lower side of the shelf that has conventionally been apt to decrease in temperature is also provided. Heated effectively. Further, since the air in the display room whose temperature has increased below the shelf rises to the upper side of the shelf, it also contributes to heating the products placed on the upper surface of the shelf. As a result, the product on the shelf is heated without any trouble by the air rising from below in addition to the heating action by heat conduction from the shelf upper surface.

  As described above, according to the present invention, the display chamber can be heated uniformly using the electric heater. In addition, as compared with the case where a lamp heater is used, it is possible to achieve accurate temperature adjustment and energy saving. In particular, the present invention is effective when the opening of the display chamber is closed with a door so as to be freely opened and closed as in claim 4.

In addition, if the electric heater is attached to the upper surface of the mounting plate as in the invention of claim 2, the radiant heat from the electric heater can be directly applied to the upper surface of the shelf, and the display chamber above the shelf is not hindered. It becomes possible to heat.

  Furthermore, if a warm color LED lighting device for illuminating the display room is provided as in the invention of claim 5, it is possible to reduce power consumption while warmly illuminating the products in the display room without using a lamp heater. Will be able to.

It is a front view of the showcase of the Example of this invention. It is a perspective view of the showcase of FIG. It is the sectional view on the AA line of the showcase of FIG. It is a top view of the shelf of the showcase of FIG. It is a BB sectional view of the shelf of FIG. It is a disassembled perspective view of the shelf of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3, a showcase 1 according to the embodiment is a desktop heating showcase installed on a so-called table such as a service counter in a store. The showcase 1 includes a main body 2 in which a display chamber 3 is formed, and side plates 5 that are provided on both sides of the main body 2 and are formed of a pair of glass transparent walls that allow the inside of the display chamber 3 to be seen through. 5 etc. A pair glass transparent wall 6 that allows the inside of the display chamber 3 to be seen through is provided on the upper surface and the front surface of the main body 2.

  In addition, in the display chamber 3 according to the embodiment, a partition wall 8 is provided to divide the interior of the display chamber 3 into upper and lower portions, and a heating area 9 (display chamber in claims) is provided above the partition wall 8. ), A switching region 10 that can be switched to room temperature is formed below. The partition wall 8 is constituted by a heat insulating wall in order to block heat conduction in the heating region 9 and the switching region 10. Further, in the embodiment, the upper surface of the partition wall 8 constitutes the bottom surface 11 of the heating region 9 and the products are displayed on the bottom surface 11, so that the products displayed on the bottom surface 11 can be easily seen from the front. For this purpose, the partition wall 8 is provided with a slight inclination forward.

  And the rear surface opening corresponding to each of the back of the heating area | region 9 of the display chamber 3 and the back of the switching area | region 10 is formed in the rear surface of the main body 2, as shown in FIG. The sliding door type rear doors 7, 7, 12, and 12 (both are made of transparent glass that can be seen through) are opened and closed freely. Thereby, the heating area | region 9 and the switching area | region 10 can display and take out the goods in each area | region separately by opening and closing the rear doors 7, 7, 12, and 12, respectively.

  Further, the upper surface of the heat insulating bottom wall 14 of the main body 2 of the embodiment constitutes the bottom surface 15 of the switching region 10. The bottom surface 15 is made of a metal plate such as stainless steel, and an electric heater 16 made of a cord heater or a sheathed heater is disposed on the back side. The electric heater 16 is energized so that the switching region 10 can be used as a heating region, and the non-energized state can be used as a normal temperature region.

  Further, in the present embodiment, the shelf 17 of the present invention is installed in the heating region 9 of the display chamber 3. In this embodiment, only one shelf 17 is installed, but it may be more than this. The shelf 17 is installed at a position at an intermediate height in the vertical direction of the heating area 9 of the display chamber 3, and a product display space (on the shelf 17 and the partition wall 8) is provided in the upper and lower heating areas 9. Composed. A code heater that heats products on the bottom surface 11 and the shelf 17, on the back side of the bottom surface 11 made of a metal plate such as stainless steel and the shelf 17 (details will be described later) formed on the upper surface of the partition wall 8, Alternatively, electric heaters 18 and 19 composed of sheathed heaters are provided.

  On the other hand, the LED lighting device 21 is attached to the main body 2 at the upper outer side of the transparent wall 6 on the front surface, and the LED lighting devices 22 and 23 are also arranged outside the transparent wall 6 at a position corresponding to the front of the partition wall 8. And attached to the main body 2. Each LED illuminating device 21 to 23 emits warm-colored light, the LED illuminating device 21 illuminates the shelf 17 from diagonally upward and forward, and the LED illuminating device 22 illuminates the partition wall 8 from the front. . Further, the LED illumination device 23 illuminates the bottom surface 15 of the switching region 10 from diagonally upward and forward.

  Next, the structure of the shelf 17 constructed in the heating area | region 9 is demonstrated using FIGS. Each of the shelves 17 includes an upper surface material 26 and a lower surface material 27 made of a metal plate such as stainless steel, and a downward flange 26A is formed around the upper surface material 26, and an upward flange 27A is formed around the lower surface material 27. Is formed. Then, the flanges 26A and 27A are overlapped to form a shelf 17 having an internal hollow structure. Reference numeral 28 denotes a bracket for engaging with the main body 2, and is integrated with the upper surface member 26. Reference numeral 30 denotes a guard that stands on the front portion of the upper surface member 26.

  A mounting plate 29 made of a metal plate such as stainless steel is mounted in the shelf 17, and the electric heater 19 is mounted on the top surface of the mounting plate 29. The mounting plate 29 has upper flanges 29 </ b> A on both sides fixed to the inner surfaces of the flanges 27 </ b> A on both sides of the lower surface material 27, and in this state, is disposed at a substantially intermediate height between the upper surface material 26 and the lower surface material 27. That is, as shown in FIG. 5, the mounting plate 29 and the electric heater 19 are positioned inside the hollow of the shelf 17, and the upper surface 26B of the upper surface material 26 (the upper surface of the shelf 17) and the lower surface 27 of the lower surface material 27 (the shelf 17). With a predetermined distance between the lower surface and the lower surface.

  With the above configuration, the heating area 9 and the switching area 10 are each provided with a temperature sensor (not shown). In particular, the heating area 9 includes a product display space on the partition wall 8 and a product display space on the shelf 17. A temperature sensor for detecting the temperature is provided. Based on the output of each temperature sensor, the energization of each electric heater 16, 18, 19 is controlled, thereby heating the inside of the display chamber 3 to a predetermined temperature, for example, + 60 ° C. or more (the switching region 10 is used for heating). Only).

  In this case, as described above, since the lamp heater is not always turned on, the power consumption can be remarkably reduced, and the temperature in the display chamber 3 can be adjusted accurately. Further, since the lighting in the display room 3 also uses the LED lighting devices 21 to 23, the power consumption is further reduced, and in the embodiment, energy savings of 30% to 40% can be achieved as compared with the conventional equivalent capacity model. It was.

  Heat generated from the electric heater 16 is transmitted to the product on the bottom surface 15 of the switching region 10 by heat conduction. Further, heat generated from the electric heater 18 is also transmitted to the product on the bottom surface 11 of the heating region 9 by heat conduction, and the product on the bottom surface 11 and 15 is heated (also referred to as warming, hereinafter the same).

  On the other hand, heat generated from the electric heater 19 in the shelf 17 having an internal hollow structure is transmitted to the mounting plate 29 by heat conduction. Radiant heat directly acts on the upper surface 26B of the upper surface material 26, and the air in the shelf 17 above the mounting plate 29 is heated, and the upper surface 26B of the upper surface material 26 is also heated by this increased temperature air. The The commodity on the shelf 17 is heated by heat conduction from the upper surface 26B, which has been heated by these heating.

  On the other hand, the radiant heat from the entire surface of the heated mounting plate 29 directly acts on the lower surface 27B of the lower surface material 27, and the air in the shelf 17 below the mounting plate 29 is heated. The lower surface 27B of the material 27 is heated. Since the air in the heating region 9 that is in contact therewith is heated by heat conduction from the lower surface 27B that has risen in temperature due to these heatings, the temperature of the lower side of the shelf 17 that has conventionally been difficult to increase even with the electric heater 18 on the bottom surface 11 is provided. The temperature of the product display area also rises. Thereby, the goods located under the shelf 17 can also be heated effectively.

  Further, since the air whose temperature has increased below the shelf 17 eventually rises to the upper side of the shelf 17 via the front side of the shelf 17 and the like, the products on the shelf 17 are also heated by the warm air that has risen. Thereby, the product displayed on the shelf 17 can also be heated without any trouble. In particular, since the opening of the heating region 9 is closed by the doors 7, 7, the inside of the heating region 9 is uniformly heated as a whole.

  It should be noted that the structure of the shelf 17 of the embodiment is not limited thereto, and various modifications can be made without departing from the gist of the present invention. In the embodiment, the present invention is applied to the showcase having the switching region 10, but the present invention is not limited to this, and the showcase may include only the heating region 9.

DESCRIPTION OF SYMBOLS 1 Showcase 2 Main body 3 Display room 5 Side plate 6 Transparent wall 7, 12 Door 8 Partition wall 9 Warming area 17 Shelf 18, 19 Electric heater 26 Upper surface material 27 Lower surface material 29 Mounting plate

Claims (5)

In a showcase that configures a display room in the body and displays products while heating the products in the display room,
A shelf for product display is installed in the display room, and a product display space is formed in the display room above and below the shelf,
The shelf has an internal hollow structure, and a mounting plate is provided in the hollow interior with a space between the upper surface and the lower surface of the shelf, and an electric heater is mounted on the mounting plate. And
The upper and lower surfaces of the shelf are heated by radiant heat from the electric heater and air on the upper side of the mounting plate and air on the lower side of the mounting plate in the inner hollow structure of the shelf heated by the electric heater. Showcase. The showcase according to claim 1, wherein the electric heater is attached to an upper surface of the attachment plate.   The showcase according to claim 1 or 2, wherein an electric heater is provided on a bottom surface of the display room located below the shelf.   The showcase according to any one of claims 1 to 3, further comprising a door that closes an opening of the display chamber so as to be freely opened and closed. The showcase according to any one of claims 1 to 4, wherein a warm color LED lighting device for illuminating the display room is provided.

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