JP2007310597A - Food heating device and automatic vending machine equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food heating device for heating only food suitable for heating by micro-waves and an automatic vending machine equipped with this food heating device. <P>SOLUTION: This food heating device 10 equipped with a food input port 13 for inputting food contained in a container from the outside and a heating part 16 for heating the food input from the food input port by micro-waves is provided with a detection part 19 for detecting that the food to be input is pet bottle beverage X to be heated and a control part 20 for deciding whether or not the food input from the food input port 13 is to be heated based on the detection result of the detection part 19, and for heating the food by the heating part 16 when it is decided that the food is to be heated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a food heating apparatus for heating food contained in a container such as a plastic bottle beverage by microwaves and a vending machine provided with the same.

  In general, when heating foods in containers such as cans and plastic bottles, these foods can be stored in a showcase and heated, or stored and heated in a vending machine. Like to sell.

  However, such showcases and vending machines are not always effective heating means in terms of energy efficiency because foods stored or stored are always heated and stored. In addition, long-time high-temperature heat storage causes deterioration of food quality, and there is a problem in that food is discarded at an early stage or the expiry date is shortened.

In order to solve such problems, in a vending machine equipped with a food heating apparatus using microwaves as a heating means, the food carried out from the storage section provided at the upper part of the main body of the vending machine rolls on the gently inclined portion. However, there is known one that is heated to a predetermined temperature by a microwave while being conveyed to an extraction portion provided at the lower part of the main body of the vending machine (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-275273

  However, when food is put into a food heating apparatus using microwaves and heated, there is a problem that heating foods that cannot be heated by microwaves, for example, canned beverages, may cause failure of the food heating apparatus. It was.

  In addition, even when food that can be heated by microwaves, such as hot plastic bottle drinks, is heated, the container may be damaged if the beverage is not contained or small in quantity, and the loading direction is not appropriate. Sometimes the beverage in the container might not be heated uniformly.

  The present invention has been made in view of the above problems, and an object thereof is to provide a food heating apparatus capable of heating only food suitable for heating by microwaves and a vending machine equipped with the same. There is to do.

  In order to achieve the above object, the present invention provides a food heating apparatus including a food input unit into which food in a container is input from the outside, and a heating unit that heats the food input from the food input unit by microwaves. Detecting means capable of detecting that the food to be input is a PET bottle beverage to be heated, and whether or not the food input from the food input unit is to be heated based on a detection result by the detecting means. A food heating apparatus is provided that includes a determination unit that determines and a control unit that heats the food with the heating unit when the determination unit determines that the food is to be heated.

  According to this food heating device, since the food is heated by the heating means when it is detected that it is a plastic bottle beverage to be a predetermined heating target and it is determined that the food is a heating target food based on the detection result, Only the PET bottle beverage suitable for heating by the microwave can be heated.

  In order to achieve the above object, the present invention proposes a vending machine provided with the food heating device in a vending machine that sells a plastic bottle beverage to be heated.

  According to this vending machine, the food is heated by the heating means when it is detected that it is a plastic bottle beverage to be a predetermined heating target, and it is determined that the food is a heating target food based on the detection result. Only the PET bottle beverage suitable for heating by the microwave can be heated.

  According to the food heating device and the vending machine according to the present invention, it becomes possible to heat only the plastic bottle beverage suitable for heating by microwaves. For example, foods that cannot be heated by microwaves are introduced. In this case, the food is not heated, and it is possible to improve safety by preventing failure of the device and deterioration of the food.

  1 to 7 show a first embodiment of the present invention. FIG. 1 is a front view of a food heating apparatus, FIG. 2 is a schematic sectional side view of the food heating apparatus shown in FIG. 1, and FIG. 4 is an enlarged side view of the heating unit shown in FIG. 4, FIG. 4 is a cross-sectional view illustrating a state in which a hot plastic bottle beverage is stored in the heating unit shown in FIG. 3, and FIG. 5 is an end view of the transport unit shown in FIG. FIG. 6 is a block diagram showing a control system configuration of the food heating apparatus shown in FIG. 1, and FIG. 7 is a heating operation of the food heating apparatus shown in FIG. It is a flowchart which shows.

  As shown in FIG. 1, a display device 11, a speaker 12, a food inlet 13, and a food outlet 14 are provided on the front surface of the food heating device 10 from the upper part to the lower part.

  The display device 11 is for displaying characters, graphics, symbols, still images, moving images, and the like, and is composed of, for example, a liquid crystal display. As long as the same display is possible, a known CRT display, plasma display, organic EL display, or the like may be used.

  The speakers 12 are for outputting sound, signal sound, and the like, and are disposed on both lower sides of the display device 11. Two or more speakers 12 are preferably provided in order to obtain a three-dimensional sound effect by a stereo method or the like, but may be one. Moreover, it is not limited to the case where both the display device 11 and the speaker 12 are provided, and either one may be provided.

  The food input port 13 is used to input food to be heated by the food heating device 10 from the outside, and is disposed at the lower center of the speaker 12. Moreover, the food inlet 13 is formed in the circular shape which has a diameter a little larger than the outer diameter of the hot plastic bottle drink used as a heating object among the input food. Thereby, the hot plastic bottle drink is poured in the longitudinal direction.

  The food outlet 14 is for taking out the heated food, and is disposed below the food inlet 13. In addition, the food outlet 14 is provided with an open / close door 14a that can be opened manually.

  As shown in FIG. 2, inside the food heating apparatus 10, a transport unit 15, a heating unit 16, a carry-out unit 17, and a power source 18 are provided.

  The transport unit 15 is for transporting food input from the food input port 13 to the heating unit 16, and communicates between the food input port 13 and the heating unit 16.

  The carry-out unit 17 is for carrying out the food heated by the heating unit 16 to the food take-out port 14, and communicates between the heating unit 16 and the food take-out port 14.

  The power supply 18 is for supplying electric power to the whole food heating apparatus 10, and a general household power supply is used in this embodiment.

  As shown in FIGS. 3 and 4, the heating unit 16 is a known microwave heating apparatus including a heater 16 a and an applicator (microwave irradiation chamber). In the following description, unless otherwise specified, the description will be made using the hot plastic bottle beverage X to be heated as the food input from the food input port 13.

  The heater 16a is a well-known magnetron, and generates a microwave by the electric power supplied from the power source 18 and emits it from the antenna 16a1.

  The applicator includes a waveguide 16b, a storage cylinder 16c, and a lower lid 16d.

  The waveguide 16b is connected to the storage cylinder 16c, and propagates the microwave emitted from the heater 16a in the direction of the storage cylinder 16c.

  The storage cylinder 16c has a cylindrical shape with an upper surface and a lower surface opened. The upper surface opening is connected to the transport unit 15 and the lower surface opening is connected to the waveguide 16b. Further, an upper cover 15a is provided at the opening on the upper surface of the storage cylinder 16c, that is, the end of the transport unit 15 on the heating unit 16 side so as to be freely openable and closable. The plastic bottle drink X is carried in from the upper surface opening, and the microwave is prevented from leaking from the storage cylinder 16c. In the present embodiment, the storage cylinder 16c has a cylindrical shape, but is not limited to this, and may have a shape other than a cylinder, for example, an ellipse or a polygon. Moreover, although the upper cover 15a was made into the slide type, it is not limited to this, A hinge type etc. may be sufficient if it opens and closes the upper surface opening part of the storage cylinder 16c.

  The lower lid 16d is provided so that a part of the lower plate surface 16h of the waveguide 16b can be freely opened and closed. By opening and closing the lower lid 16d, the hot plastic bottle beverage X is carried out to the carry-out unit 17, and The hot plastic bottle drink X that has been carried in is supported and stored in the storage cylinder 16c, and microwaves are prevented from leaking from the storage cylinder 16c.

  The hole 16e is provided in the upper plate surface 16f of the waveguide 16b, and the antenna 16a1 of the heater 16a (magnetron) is inserted.

  The stub 16g is provided on the upper plate surface 16f, and functions as a matching unit for efficiently causing the microwaves emitted from the antenna 16a1 to enter the hot plastic bottle beverage X.

  In the heating unit 16 configured as described above, the direction of the spout of the hot plastic bottle beverage X is stored as the lower surface, and the microwave is concentrated from the antenna 16a1 to the constricted portion of the hot plastic bottle beverage X, thereby It becomes possible to efficiently guide the convection of the beverage inside, and the hot plastic bottle beverage X can be heated uniformly.

  In this embodiment, one heater 16a and one waveguide 16b are provided. However, the present invention is not limited to this, and a plurality of heaters 16a and waveguides 16b may be provided. Thereby, a microwave is irradiated to the hot plastic bottle drink X from a plurality of directions, and it becomes possible to heat in a shorter time.

  As shown in FIG. 5, a micro switch 19a, a weight sensor 19b, a material sensor 19c, and a color sensor 19d are provided at the end of the transport unit 15 including the upper lid 15a on the heating unit 16 side as detection units described later. Yes. The upper lid 15a is closed before the hot plastic bottle beverage X is carried into the storage cylinder 16c, so that the upper lid 15a supports the hot plastic bottle beverage X introduced from the food inlet 13, and the heating section 16 of the transport section 15 is supported. While storing in the edge part of the side, it detects that a detection part is the hot plastic bottle drink X used as heating object. Thereby, it is not necessary to provide a detection part in an applicator (microwave irradiation chamber).

  A concave portion 15a1 having a predetermined diameter (r1) is formed at substantially the center of the surface of the upper lid 15a on the transport unit 15 side, and the diameter (r1) covers the spout of the hot plastic bottle beverage X. It is set to a value larger than the diameter (r) of the cap and smaller than the diameter (R) of the bottom surface of the hot plastic bottle beverage X (r <r1 <R). Thereby, when the hot plastic bottle drink X is poured into the food inlet 13 from the spout direction, the cap of the hot plastic bottle drink X comes into contact with the recess 15a1.

  The micro switch 19a is provided at the approximate center of the recess 15a1, and the switch is turned on when the charged hot plastic bottle X comes into contact with the micro switch 19a. This makes it possible to detect the direction in which the hot plastic bottle beverage X is introduced.

  In this embodiment, the micro switch 19a is provided to detect the charging direction of the hot plastic bottle beverage X. However, the present invention is not limited to this, and the micro switch 19a is provided at a predetermined position on the end of the transport unit 15 on the heating unit 16 side. That is, when the pour spout direction of the hot plastic bottle beverage X is stored as the lower surface, a light source and a phototube are provided at a position corresponding to the vicinity of the constricted portion, and the spout direction of the hot plastic bottle beverage X is stored as the lower surface. The light from the light source is not reflected by the plastic bottle beverage X and can be detected by the photoelectric tube, and the light from the light source is reflected by the hot plastic bottle beverage X and cannot be detected by the photoelectric tube when stored with the spout direction as the upper surface. The feeding direction of the plastic bottle beverage X may be detected.

  The weight sensor 19b is a well-known weight sensor including a capacitance change detection type weight sensor, a load cell, and the like. The weight sensor 19b is formed in an annular shape and is embedded under the recess 15a1, and the charged hot plastic bottle beverage X And the recess 15a1 come into contact with each other, the weight of the hot plastic bottle beverage X is detected. Thereby, the weight of the hot plastic bottle beverage X can be detected when the spout direction is stored as the lower surface.

  The material sensor 19c is provided at a predetermined position at the end of the transport unit 15 on the heating unit 16 side, that is, at a position corresponding to a constricted portion when the pouring direction of the hot plastic bottle beverage X is stored as the lower surface. The material sensor 19c detects the infrared spectrum of the reflected light by irradiating the constricted portion of the hot plastic bottle beverage X with near infrared rays. Generally, the constricted portion of the hot plastic bottle beverage X has no packaging material such as a film, and the material of the hot plastic bottle beverage X is exposed. Thereby, when the spout direction is stored as the lower surface, it is possible to detect the material of the hot plastic bottle beverage X from the infrared spectrum of the reflected light.

  The color sensor 19d is provided at a predetermined position at the end of the transport unit 15 on the heating unit 16 side, that is, at a position corresponding to the cap when the pour spout direction of the hot plastic bottle beverage X is stored as the lower surface. The color sensor 19d irradiates the cap of the hot plastic bottle beverage X from the RGB three-color light emitting diodes to detect the amount of reflected light. Generally, the cap of the hot plastic bottle beverage X is orange or yellow. This makes it possible to detect the color of the cap of the hot plastic bottle beverage X from the amount of reflected light when the spout direction is stored as the lower surface.

  As shown in FIG. 6, the control unit 20 is for controlling the entire food heating apparatus 10 and is a well-known computer including a CPU, a memory such as a RAM and a ROM, and the like. The control unit 20 is connected with a detection unit 19, a storage unit 21, a display device 11, a speaker 12, an upper lid 15a, a heater 16a, and a lower lid 16d, and is based on a program stored in its own memory. Output a control signal.

  The detection unit 19 includes a micro switch 19a, a weight sensor 19b, a material sensor 19c, and a color sensor 19d. The micro switch 19a outputs input direction data to the control unit 20, and the weight sensor 19b controls the weight data. The data is output to the unit 20. The material sensor 19c operates based on a control signal input from the control unit 20 and outputs material data to the control unit 20, and the color sensor 19d operates based on a control signal input from the control unit 20. The color data is output to the control unit 20.

  The storage unit 21 includes a rewritable storage element such as an EEPROM, and stores character data 21a, voice data 21b, and the like. Based on a control signal input from the control unit 20, the character data 21a or The audio data 21b is output to the control unit 20.

  The display device 11 displays character data 21 a input from the control unit 20, and the speaker 12 outputs voice data 21 b input from the control unit 20.

  The upper lid 15a opens and closes the upper surface opening of the storage cylinder 16c based on a control signal input from the control unit 20, and the heater 16a emits microwaves based on the control signal input from the control unit 20, 15d is configured to open and close part of the lower plate surface 16h based on a control signal input from the control unit 20.

  As shown in FIG. 7, when the food heating apparatus 10 is activated, the control unit 20 performs an initial process (step S11). That is, the control unit 20 closes the upper lid 15a, reads the character data 21a or the voice data 21b from the storage unit 21, and displays a message saying, for example, “Put in a hot plastic bottle beverage from the spout direction”. The information is displayed on the device 11 or output from the speaker 12 by voice.

  Next, the control unit 20 determines whether or not food is input from the food input port 13 (step S12), and repeats the process of step S12 until the food is input. In the present embodiment, an objective sensor (not shown) is provided at the end of the transport unit 15 on the food inlet 13 side, and food detection data is output to the control unit 20, and the control unit 20 is provided with an objective sensor (not shown). It is determined whether or not the food has been input based on the detection data input from (1).

  As a result of this determination, when food is input from the food input port 13, the food is stored at the end of the transport unit 15 on the heating unit 16 side as shown in FIG. Then, the color sensor 19d is driven (step S13).

  Next, the control unit 20 uses the input direction data input from the micro switch 19a, the weight data input from the weight sensor 19b, the material data input from the material sensor 19c, and the color data input from the color sensor 19d. It is determined whether the processed food is a food to be heated (step S14).

  As a result of this determination, when the food is a food to be heated, that is, when a hot plastic bottle drink X containing orange or yellow cap and containing a predetermined weight of beverage is introduced from the spout direction, the control unit 20 The lower lid 16d is closed (step S15), the upper lid 15a is opened (step S16), and the hot plastic bottle beverage X is stored in the storage cylinder 16c as shown in FIG.

  Next, the control unit 20 closes the upper lid 15a (step S17), and drives the heater 16a to heat the hot plastic bottle beverage X to a predetermined temperature (step S18). Thereby, it becomes possible to heat only the hot plastic bottle drink X suitable for heating by microwaves.

  As a result of the determination in step S14, if the food is not a food to be heated, the control unit 20 opens the upper lid 15a without performing the processes in steps S15 to S18 (step S19).

  After the process of step S18 or step S19, the control unit 20 opens the lower lid 16d (step S20), and carries out the hot plastic bottle beverage X from the storage cylinder 16c to the food outlet 14 via the carry-out unit 17.

  At the same time, the control unit 20 reads the character data 21a or the voice data 21b from the storage unit 21 and displays, for example, a message “heating is completed” on the display device 11 when the food to be heated is added. Or output from the speaker 12 by voice. Alternatively, when a food other than the food to be heated is input, that is, when it is determined in step S14 that the food is not the food to be heated, for example, “Please input from the spout direction”, “ A message indicating the reason for determining that the product is not subject to heating, such as “Put in a hot plastic bottle beverage”, “Put in a plastic bottle”, or “Put in a hot plastic bottle beverage”. The information is displayed on the display device 11 or output from the speaker 12 by voice (step S21). Thereby, the user of the food heating apparatus 10 can know the reason why the input food is determined not to be heated.

  After the process of step S21, the control unit 20 repeatedly performs the processes of step S11 to step S21 until the food heating device 10 stops.

  Thus, according to the present embodiment, when a predetermined attribute of the hot plastic bottle beverage X to be heated is detected and determined to be a food to be heated based on the detected predetermined attribute, heating is performed. Since the food is heated by the unit 16, it is possible to heat only the hot plastic bottle drink X suitable for heating by microwave. For example, when food that cannot be heated by microwave is input. Without heating the food, it is possible to improve safety by preventing device failure and food deterioration.

  Further, the material sensor 19c irradiates the constricted portion of the hot plastic bottle beverage X with near infrared rays and detects the infrared spectrum of the reflected light. Therefore, when the spout direction is stored as the lower surface, the infrared of the reflected light is stored. Since it is possible to detect the material of the hot PET bottle beverage X from the spectrum, when a container other than a PET bottle, for example, a can or a bottle is inserted, the food is not heated, and the microwave and the can Can be prevented from being discharged or excessive or insufficient heating of food.

  Further, the color sensor 19d irradiates the caps of the hot plastic bottle beverage X from the RGB three-color light emitting diodes to detect the respective reflected light amounts, so that when the pour spout direction is stored as the lower surface, respectively. It is possible to detect the color of the cap of the hot plastic bottle beverage X from the amount of reflected light, so that the food can be heated when a non-hot plastic bottle, for example, a cold plastic bottle beverage is introduced. Therefore, it is possible to prevent the PET bottle having low heat resistance from being damaged or excessive or insufficient heating of the beverage in the PET bottle.

  Furthermore, since the weight of the hot plastic bottle drink X is detected when the charged hot plastic bottle drink X comes into contact with the recess 15a1 by the weight sensor 19b, the hot pet bottle is stored when the spout direction is stored as the lower surface. Since it becomes possible to detect the weight of the bottled beverage X, when the food of a predetermined weight or less, for example, when no beverage is contained or a small amount of hot plastic bottle beverage X is introduced, the food is not heated, It is possible to prevent the gas in the PET bottle from expanding and bursting or causing excessive or insufficient heating of the beverage in the PET bottle.

  Furthermore, since the switch is turned on when the injected hot plastic bottle X comes into contact with the micro switch 19a by the micro switch 19a, it is possible to detect the input direction of the hot plastic bottle beverage X. When a food other than a plastic bottle introduced from the mouth direction, for example, a hot plastic bottle beverage X introduced from the bottom direction is introduced, the food is not heated, and the beverage in the plastic bottle is unevenly heated. Can be prevented.

  Furthermore, since the detection part 19 which detects the attribute which the hot plastic bottle drink X used as a heating object has is provided in the edge part by the side of the heating part 16 of the conveyance part 15 containing the upper cover 15a, an applicator (microwave irradiation chamber) ), It is not necessary to provide the detection unit 19, so that the detection unit 19 can be prevented from being damaged by the microwaves emitted from the heater 16 a, and the detection unit 19 serves as an antenna and the microwaves are applied to the applicator ( It is possible to prevent leakage outside the microwave irradiation chamber.

  Furthermore, when it is determined that the food is not a heating target, a message indicating the reason for the determination that the food is not a heating target is displayed on the display device 11, so that the user of the food heating device 10 does not input the food that is the heating target. Since it is possible to know the reason why it is determined that there is not, it is possible to easily add a hot plastic bottle drink X suitable for heating by microwaves when feeding food again, thereby preventing erroneous feeding. Can do.

  Further, when it is determined that the food is not a heating target, a message indicating the reason for the determination that the food is not a heating target is output from the speaker 12 by voice. Because it becomes possible to know the reason why it is determined that it is not, the hot PET bottle drink X suitable for heating by the microwave can be easily charged when the food is charged again, thereby preventing erroneous charging. be able to.

  8 to 13 show a second embodiment of the present invention. FIG. 8 is a front view of the food heating apparatus, FIG. 9 is a schematic sectional side view of the food heating apparatus shown in FIG. 8, and FIG. FIG. 11 is a block diagram showing the control system configuration of the food heating apparatus shown in FIG. 8, and FIG. 12 is FIG. FIG. 13 is a flowchart showing a heating operation of the food heating apparatus shown in FIG. 8. FIG. 13 is a block diagram showing a modification of the control system configuration of the food heating apparatus shown in FIG.

  The difference between the second embodiment and the first embodiment is that, instead of detecting that it is a hot bottle and a plastic bottle, the barcode given to the hot plastic bottle drink X is detected. . Note that the same components as those of the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  That is, as shown in FIG. 8, the barcode reader 19e is a well-known barcode reader composed of a laser-type or CCD-type scanner or the like, and has a food inlet 13 provided on the front surface of the food heating device 10A. It is placed sideways and reads barcodes printed on food. Thereby, it becomes possible to detect the barcode given to the hot plastic bottle beverage X.

  In this embodiment, the bar code reader 19e is provided to read the bar code of the food. However, the present invention is not limited to this. As long as the hot bottled drink X and other food can be identified, the QR code or ST It may be a code or the like.

  In addition, a set temperature selection unit 22 including three buttons is provided below the barcode reader 19e, and each button has “slimming (50 degrees)”, “appropriate temperature (55 degrees)”, and “heating”. Corresponding to “(60 degrees)”, the set temperature of the food to be heated can be selected.

  As shown in FIG. 9, the inlet door 13 a is provided at the end of the food inlet 13 on the side of the transport unit 15 so as to be freely opened and closed.

  As shown in FIG. 10, the material sensor 19c and the color sensor 19d provided on the upper lid 15a in the first embodiment are omitted by providing the barcode reader 19e.

  As shown in FIG. 11, the control unit 20A includes a detection unit 19A, a storage unit 21, a display device 11, a speaker 12, an upper lid 15a, a heater 16a, and a lower lid 16d, as well as an inlet door 13a and a set temperature selection unit. 22 is connected, and the detection unit 19A includes a micro switch 19a, a weight sensor 19b, and a barcode reader 19e.

  The barcode reader 19e outputs the barcode data to the control unit 20A, the set temperature selection unit 22 outputs the selected set temperature data to the control unit 20A, and the inlet door 13a receives the control signal input from the control unit 20A. The food inlet 13 leading to the transport unit 15 is opened and closed based on the above.

  In this embodiment, the barcode reader 19e is provided. However, the present invention is not limited to this, and the food data receiver 19f may be provided at a predetermined position of the food heating apparatus 10A.

  As shown in FIG. 12, the plurality of vending machines 30 installed outside the food heating apparatus 10A sell hot plastic bottle beverages X, and when selling food, The unique food data set for each column and given to the food stored in each column is transmitted. The food data receiver 19 f receives food data transmitted from each vending machine 30. Thereby, it becomes possible to detect the food data given to the hot plastic bottle beverage X. Further, the food data receiver 19f outputs food data to the control unit 20A. Note that the food data transmission / reception method may be wired or wireless, and there may be one vending machine 30.

  As shown in FIG. 13, when the food heating apparatus 10A is activated, the control unit 20A performs an initial process (step S11). That is, the control unit 20A closes the inlet door 13a and the upper lid 15a, and reads the character data 21a or the voice data 21b from the storage unit 21, for example, “Hold the barcode of the hot plastic bottle beverage over the barcode reader” The message “Please put in the hot plastic bottle drink from the direction of the spout” is displayed on the display device 11 or outputted from the speaker 12 by voice.

  Next, the control unit 20A performs the following processing instead of the processing of Step S12 and Step S13. That is, it is determined whether or not the barcode data input from the barcode reader 19e is a predetermined barcode (step S22), and the process of step S22 is repeated until the predetermined barcode is input.

  As a result of the determination, when a predetermined barcode is input, that is, when the barcode of the hot plastic bottle beverage X whose cap color is orange or yellow is read, the control unit 20A opens the inlet door 13a ( Step S23). Thereby, the hot plastic bottle drink X can be introduced.

  When the hot plastic bottle drink X is introduced from the food inlet 13, the input direction data input from the micro switch 19a and the weight data input from the weight sensor 19b are input, so that the same as in the first embodiment. Moreover, 20 A of control parts perform the process of step S14-step S21, and repeat the process of step S11-step S21 until the food heating apparatus 10 stops. At that time, in the process of step S18, the control unit 20A drives the heater 16a so that the hot PET bottle beverage X reaches the set temperature input from the set temperature selection unit 22, and the hot PET bottle beverage X Is preferably displayed on the display device 11 or output from the speaker 12 by voice.

  In this embodiment, after opening the inlet door 13a in step S23, the inlet door 13a is closed in the initial process performed again. However, the present invention is not limited to this, and input from an objective sensor (not shown) is performed. After detecting that food has been input from the food input port 13 based on the detected food data, the input port door 13a may be closed immediately. Thereby, it is possible to prevent an object from being introduced from the food inlet 13 before the hot plastic bottle beverage X is introduced and before it is carried out to the food outlet 14.

  Thus, according to the present embodiment, in addition to the same effects as the first embodiment, when the barcode of the hot plastic bottle beverage X is read by the barcode reader 19e, the inlet door 13a opens, Since the hot plastic bottle drink X can be introduced, containers other than plastic bottles or non-hot plastic bottles are not introduced, and further, the safety of the apparatus is improved by preventing the failure of the apparatus and the deterioration of food. I can.

  Further, since the food data transmitted from each vending machine 30 is received by the food data receiver 19f, it is possible to detect the food data given to the hot plastic bottle beverage X. Only the hot plastic bottle beverage X sold by the machine 30 can be heated.

  Furthermore, when the food heating device 10A is provided inside the bucket type vending machine that sells the hot plastic bottle beverage X, and the hot plastic bottle beverage X is sold, the bucket (conveying mechanism) is used as the hot plastic bottle beverage. The same effect can be obtained when X is introduced into the food inlet 13 from the spout direction and the food data is transmitted from the vending machine main body to the food data receiver 19f. At that time, in the process of step S23, the control unit 20A may close the insertion port door 13a immediately after opening it for a predetermined time. Accordingly, it is possible to prevent the food from being introduced through the food inlet 13 before the hot plastic bottle beverage X is introduced and before it is carried out to the food outlet 14, thereby preventing mischief. In addition, it is possible to improve safety by preventing failure of the apparatus.

  In addition, the structure of this invention may combine the structure of each said embodiment, or may replace a one part structure part.

  The configuration of the present invention is not limited to the above embodiments, and various modifications may be made without departing from the spirit of the present invention.

Front view of food heating device Schematic side sectional view of the food heating apparatus shown in FIG. Enlarged side view of the heating section shown in FIG. Sectional drawing explaining the state which stored the plastic bottle drink for hot in the heating part shown in FIG. The expanded sectional view explaining the state which conveyed the plastic bottle drink for heating to the edge part of the conveyance part shown in FIG. The block diagram which shows the control system structure of the food heating apparatus shown in FIG. The flowchart which shows the heating operation of the food heating apparatus shown in FIG. Front view of food heating device Schematic side sectional view of the food heating device shown in FIG. The expanded sectional view explaining the state which conveyed the plastic bottle drink for hot to the edge part of the conveyance part shown in FIG. The block diagram which shows the control system structure of the food heating apparatus shown in FIG. 12 is a block diagram showing a modification of the control system configuration of the food heating apparatus shown in FIG. The flowchart which shows the heating operation of the food heating apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,10A ... Food heating apparatus, 11 ... Display apparatus, 12 ... Speaker, 13 ... Food input, 13a ... Input port door, 15 ... Conveyance part, 15a ... Top cover, 16 ... Heating part, 19, 19A ... Detection part, 19a DESCRIPTION OF SYMBOLS ... Microswitch, 19b ... Weight sensor, 19c ... Material sensor, 19d ... Color sensor, 19e ... Bar code reader, 19f ... Food data receiver, 20, 20A ... Control part, X ... Plastic bottle drink for hot

Claims (14)

In a food heating apparatus comprising a food input unit into which food in a container is input from the outside, and a heating means for heating the food input from the food input unit by microwaves,
Detection means capable of detecting that the food to be input is a plastic bottle beverage to be heated, and
Based on the detection result by the detection means, determination means for determining whether or not the food introduced from the food input unit is a heating target,
A food heating apparatus, comprising: a control unit that heats the food by the heating unit when the determination unit determines that the food is a food to be heated. The food heating apparatus according to claim 1, wherein the detection unit includes a material detection unit that detects a material of a predetermined plastic bottle beverage. The food heating apparatus according to claim 1, wherein the detection unit includes a color detection unit that detects a color of a cap that covers a spout of a predetermined PET bottle beverage. The food heating apparatus according to any one of claims 1 to 3, wherein the detection means includes weight detection means for detecting the weight of a predetermined plastic bottle beverage. The food heating apparatus according to any one of claims 1 to 4, wherein the detection unit includes a loading direction detection unit that detects a loading direction of a predetermined plastic bottle beverage. A transport unit for transporting food charged from the food input unit to the heating means;
The heating means has an opening for carrying the food conveyed by the conveying unit into the inside,
The food heating apparatus according to any one of claims 1 to 5, wherein a lid for opening and closing the opening of the heating unit is provided at one end of the transport unit, and a detection unit is provided at one end of the transport unit including the lid. . The food heating apparatus according to claim 1, wherein the detection means includes identification information detection means for detecting identification information given to a predetermined plastic bottle beverage. The food heating apparatus according to claim 7, wherein the identification information detection unit includes a reception unit that receives identification information from at least one vending machine that sells a predetermined plastic bottle beverage. The food heating apparatus according to claim 7 or 8, wherein the food input unit includes input enabling means that enables food to be input when the identification information is detected by the identification information detection means. The food heating apparatus according to any one of claims 7 to 9, wherein the detection means includes weight detection means for detecting the weight of a predetermined plastic bottle beverage. The food heating apparatus according to any one of claims 7 to 10, wherein the detection unit includes a loading direction detection unit that detects a loading direction of a predetermined plastic bottle beverage. The food heating apparatus according to any one of claims 1 to 11, further comprising display means for displaying a determination reason to the outside when the determination means determines that the food is not a food to be heated. The food heating apparatus according to any one of claims 1 to 12, further comprising voice output means for outputting a judgment reason to the outside by voice when the judgment means judges that the food is not to be heated. In a vending machine that sells PET bottle beverages that are subject to heating,
A vending machine comprising the food heating device according to any one of claims 1 to 13.

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