JP2022049253A - Food and drink heating device - Google Patents

Abstract

To enhance safety of a food and drink heating device.SOLUTION: A food and drink heating device (1) includes: a plurality of heating shelves (13) to place trays (11) on which a plurality of containers (23) for storing food and drink are arranged; and heating means (20) for heating a plurality of kinds of food and drink placed on the respective heating shelves (13). Temperature detection means (21) for detecting internal temperature is arranged in each one of the heating shelves (13). The heating means (20) and the temperature detection means (21) are respectively arranged in accordance with the respective containers (23). Presence/absence of the tray (11) or the container (23) arranged on the tray (11) is detected by using the temperature detection means (21).SELECTED DRAWING: Figure 4

Description

In the present invention, a plurality of heating shelves for placing trays on which a plurality of containers for accommodating foods and drinks are placed are provided, and a heating means for heating a plurality of foods and drinks placed on each heating shelf is provided. It relates to the provided food and drink heating device.

Conventionally, in facilities such as hospitals and schools, a food and drink heating device capable of heating food and drink for a plurality of people at the same time has been used in order to provide the food and drink heated to a plurality of people.

As this food and drink heating device, a plurality of heating shelves are formed to accommodate trays on which a plurality of containers containing food and drink are placed, and electromagnetic waves (microwaves) or the like are used for the food and drink on each heating shelf. A food and drink heating device having a structure provided with a heating means for heating the above-mentioned food has been developed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-9028

In the above-mentioned conventional food and drink heating device, since the heating means is provided in each heating shelf, insufficient heating or overheating occurs when the container is heated by the heating means, or the tray on which the container is placed is placed. It is desired that the air is not heated by the heating means in the absence of the above.

Therefore, in the present invention according to claim 1, a plurality of heating shelves for placing trays on which a plurality of containers for accommodating foods and drinks are arranged are provided, and a plurality of foods and drinks placed on each heating shelf are heated. In the food and drink heating device provided with the heating means for heating, it was decided to provide a temperature measuring means for detecting the internal temperature in each heating shelf.

Further, in the present invention according to claim 2, in the present invention according to claim 1, the heating means and the temperature measuring means are provided corresponding to each container.

Further, in the present invention according to claim 3, in the present invention according to claim 1 or 2, the presence or absence of a tray or a container arranged on the tray is detected by using the temperature measuring means.

Then, in the present invention, the effects described below are obtained.

That is, in the present invention, a plurality of heating shelves for placing trays on which a plurality of containers for accommodating foods and drinks are placed are provided, and a heating means for heating a plurality of foods and drinks placed on each heating shelf. In the food and drink heating device provided with the above, since the temperature measuring means for detecting the internal temperature is provided in each heating shelf, the internal temperature of each heating shelf can be monitored by the temperature measuring means.

In particular, when the heating means and the temperature measuring means are provided corresponding to each container, it is possible to prevent insufficient heating and overheating that may occur when the food and drink contained in the container is heated by the heating means. can.

Further, when it is decided to detect the presence or absence of the container arranged on the tray or the tray by using the temperature measuring means, the state where the tray on which the container is arranged does not exist or the container is not arranged on the tray. It is possible to prevent empty heating by the heating means.

A front view (a) and a right side view (b) showing a food and drink heating device (shuttle and station). The same plan sectional view (a) and the same right side sectional view (b). A front sectional view (a) and a right side sectional view (b) showing the station. Front view showing each heating shelf.

Hereinafter, a specific configuration of the food / drink heating device according to the present invention will be described with reference to the drawings.

As shown in FIG. 1, the food / drink heating device 1 is configured to be separable into a shuttle 2 capable of accommodating food and drink and a station 3 capable of accommodating the shuttle 2. In the following description, the structure in which the food and drink heating device 1 can be separated into the movable shuttle 2 and the fixed station 3 is described, but the present invention is not limited to this, and the integrated structure is used. However, the configuration is not limited to the movable type and may be a fixed type.

As shown in FIG. 2, the shuttle 2 has four casters 5 attached to the lower part of the horizontally long rectangular plate-shaped bottom plate 4 so that it can be moved (carried), and vertically long rectangular plate-shaped left and right on the upper left and right sides of the bottom plate 4. Side walls 6 and 7 are attached. Further, the shuttle 2 has a horizontally long rectangular plate-shaped top plate 8 attached between the upper ends of the left and right side walls 6 and 7, and a vertically long rectangular plate-shaped shutter 9 that can be opened and closed vertically between the front ends of the left and right side walls 6 and 7. Is attached, and a vertically long rectangular plate-shaped rear wall 10 is attached between the rear ends of the left and right side walls 6 and 7. Further, the shuttle 2 has supports 12 supporting trays 11 for placing a plurality of tableware containing food and drink attached to the left and right side walls 6 and 7 at predetermined intervals. As a result, the shuttle 2 is divided into upper and lower parts by the tray 11 in which the internal space surrounded by the bottom plate 4, the left and right side walls 6, 7 and the top plate 8, the shutter 9, and the rear wall 10 is supported by the support 12. , A plurality of (here, 24 pieces in 12 rows and 2 rows) heating shelves 13 are arranged side by side in the vertical and horizontal directions. The trays 11 are housed side by side in each heating shelf 13.

As shown in FIG. 3, the station 3 forms a hollow box-shaped top plate portion 16 at the upper ends of the left and right side walls 14 and 15 having a vertically long rectangular plate shape. Further, the station 3 has a rectangular plate-shaped shutter 17 that can be opened and closed vertically between the front ends of the left and right side walls 14 and 15, and a hollow box-shaped rear wall portion between the rear ends of the left and right side walls 14 and 15. Forming 18. As a result, the station 3 forms a space 19 for accommodating the shuttle 2 surrounded by the left and right side walls 14, 15 and the top plate portion 16, the shutter 17, and the rear wall portion 18.

The station 3 has a heating means 20 for heating food and drink (tableware) housed in the shuttle 2 with the shuttle 2 housed inside, and a heating means 20 for detecting the temperature inside each heating shelf 13. A temperature measuring means 21 and a control means (computer) 22 for controlling these are provided.

As shown in FIGS. 3 and 4, a plurality of left and right heating means 20 (three in this case) are provided at positions corresponding to the heating shelves 13 of the shuttle 2, and each heating means 20 has each heating shelf 20. The food and drink placed on the tray 11 of 13 can be heated for each food and drink (container 23).

Each heating means 20 connects an electromagnetic wave transmission tube 25 for transmitting an electromagnetic wave to an electromagnetic wave generator 24 for generating an electromagnetic wave (here, a microwave), and emits an electromagnetic wave to the upper part of the electromagnetic wave transmission tube 25. The irradiation opening 26 is formed. The electromagnetic wave radiated from the electromagnetic wave generator 24 is radiated from the electromagnetic wave irradiation opening 26 toward the food and drink (container 23) via the electromagnetic wave transmission tube 25.

A plurality of (here, three) heating means 20 are provided on one side of each heating shelf 13 (on the left side and the right side when the station 3 is viewed from the front), and each heating means 20 is provided. Electromagnetic wave irradiation openings 26 are formed at different positions. On the other hand, the tray 11 has a mark on the upper surface, and when the tray 11 is housed in a regular position, each electromagnetic wave irradiation opening 26 is located directly under each mark. As a result, by placing the container 23 on the mark of the tray 11, the food and drink contained in the container 23 can be separately heated by the heating means 20 corresponding to the position. It suffices if each container 23 can be individually heated, and the case is not limited to the case where each tray 11 is provided with a plurality of electromagnetic wave generators 24 and electromagnetic wave transmission pipes 25, and each tray 11 or each heating shelf 13 has one. It may be configured to be provided with an individual electromagnetic wave generator and an electromagnetic wave transmission tube that branches into a plurality of branches. Further, the tray 11 is not limited to a tray-shaped tray, as long as a plurality of foods and drinks can be arranged, and may be a box-shaped tray, a lunch box, or the like.

As shown in FIGS. 3 and 4, the temperature measuring means 21 is provided with a rectangular box-shaped casing 27 above the heating shelves 13 and 13 (each stage of the shuttle 2) arranged on the left and right sides of the shuttle 2, and the inside of the casing 27. The substrate 28 is attached to the bottom surface of the substrate 28, and a plurality of (here, 6) temperature sensors as temperature measuring means 21 are attached downward. An opening 29 is formed in the casing 27 at a position facing each temperature measuring means 21, and the opening 29 is covered with a transparent window 30 to prevent steam or the like from adhering to the temperature measuring means 21.

Each temperature measuring means 21 is provided at a position facing the electromagnetic wave irradiation opening 26 of each heating means 20 vertically, and detects the temperature of food and drink (the lid of the container 23) heated by each heating means 20. There is.

Each heating means 20 and each temperature measuring means 21 are connected to the control means 22, and each heating means of each heating shelf 13 is monitored by the control means 22 while the temperature inside the heating shelves 13 is monitored by the temperature measuring means 21. 20 are controlled individually.

For example, the control means 22 stores a heating temperature individually set for each food or drink (container 23) arranged in the tray 11 placed on each heating shelf 13 in advance, and the setting heating temperature is set in advance. It is possible to control the heating by the heating means 20 while detecting the temperature by the temperature measuring means 21. Since the heating means 20 and the temperature measuring means 21 are provided corresponding to each container 23, insufficient heating (below the set temperature) that may occur when the food or drink contained in the container 23 is heated by the heating means 20. It is possible to prevent heating) and overheating (heating above the set temperature).

At that time, instead of simultaneously driving a plurality of (here, three) heating means 20 of each heating shelf 13 to heat all the containers 23, heating is performed by one of the heating means 20 for a predetermined time. , The temperature of all the containers 23 is measured by a plurality of temperature measuring means 21, and the heating is performed for a predetermined time only by the heating means 20 corresponding to the container 23 having the lowest temperature. It may be repeated until the temperature is reached. As a result, by heating the corresponding container 23 by any of the heating means 20, it is possible to prevent the surrounding containers 23 from being heated to a temperature higher than the set temperature.

Further, the control means 22 preliminarily drives each heating means 20 of each heating shelf 13 for a certain period of time before the main heating, measures the temperature rise at that time by the temperature measuring means 21, and the set temperature rise is measured. If this is the case, it is determined that the tray 11 or container 23 is installed in the predetermined position, and if the set temperature rise is not measured, it is determined that the tray 11 or container 23 is not installed in the predetermined position. It can be controlled to issue a warning or the like. In this way, the presence or absence of the tray 11 or the container 23 can be detected by using the temperature measuring means 21, and it is possible to prevent the heating means 20 from empty-heating in the absence of the tray 11 or the container 23. be able to.

Further, even if the heating means 20 is not driven, the presence or absence of the tray 11 or the container 23 can be detected by measuring the temperature rise caused by the difference in the heat capacity of the tray 11 or the container 23 with the temperature measuring means 21. Further, when detecting the presence or absence of the tray 11, only the heating means 20 of each heating shelf 13 and the corresponding temperature measuring means 21 may be operated. Further, as the heating means 20, a plate-shaped heating element provided below the tray 11 can also be used. If a plate-shaped heating element or the like is provided below the tray 11, the temperature is measured by the temperature measuring means 21 without the tray 11 to check whether dirt or foreign matter is attached to the window 30 or the like of the temperature measuring means 21. Can be detected, and an alarm prompting cleaning can be issued.

As described above, the food and drink heating device 1 is provided with a plurality of heating shelves 13 for mounting trays 11 on which a plurality of containers 23 for accommodating food and drink are arranged, and is placed on each of the heating shelves 13. A heating means 20 for heating a plurality of foods and drinks is provided, and a temperature measuring means 21 for detecting the internal temperature is provided in each heating shelf 13.

Therefore, in the food / drink heating device 1 having the above configuration, the temperature inside each heating shelf 13 can be monitored by the temperature measuring means 21, and the safety of the food / drink heating device 1 can be improved.

Further, the food / drink heating device 1 has a configuration in which a heating means 20 and a temperature measuring means 21 are provided corresponding to each container 23.

Therefore, in the dietary food heating device 1 having the above configuration, it is possible to prevent insufficient heating and overheating that may occur when the dietary food and drink contained in the container 23 are heated by the heating means 20.

Further, the food / drink heating device 1 is configured to detect the presence / absence of the tray 11 by using the temperature measuring means 21.

Therefore, in the food / drink heating device 1 having the above configuration, it is possible to prevent empty heating by the heating means 20 in a state where the tray 11 on which the container 23 is placed does not exist.

1 Food and beverage heating device 2 Shuttle 3 Station 4 Bottom plate 5 Caster 6,7 Side wall 8 Top plate 9 Shutter
10 rear wall 11 tray
12 Support 13 Heating shelf
14,15 Side wall 16 Top plate
17 Shutter 18 Rear wall
19 Space 20 Heating means
21 Temperature measuring means 22 Control means
23 Container 24 Electromagnetic wave generator
25 Electromagnetic wave transmission tube 26 Electromagnetic wave irradiation opening
27 Casing 28 Substrate
29 openings 30 windows

Claims (3)

Food and beverage heating provided with a plurality of heating shelves for placing trays on which a plurality of containers for accommodating food and drink are arranged, and heating means for heating a plurality of food and drink placed on each heating shelf. In the device
A food and drink heating device characterized in that each heating shelf is provided with a temperature measuring means for detecting the internal temperature. The food and drink heating device according to claim 1, wherein the heating means and the temperature measuring means are provided corresponding to each container. The food or drink heating device according to claim 1 or 2, wherein the presence or absence of a tray or a container arranged on the tray is detected by using the temperature measuring means.

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