JP2008099892A - Food service cart - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food service cart which allows a temperature display means to perform appropriate temperature display, with respect to the food service cart provided with a storage chamber for storing dishes and the temperature display means for displaying temperature inside the storage chamber. <P>SOLUTION: In the food service cart 1, the room temperature of a cold chamber 31 or the like is detected by a cold chamber thermistor 86 and the like, and displayed to a cold storage temperature display part 60 and the like (S23). On the basis of a passed update period to be counted by an update period timer 87, temperature display of the cold storage temperature display part 60 and the like are updated whenever necessary. In doing this, when a cold storage operation switch 61 and the like are operated, the update period timer 87 is initialized (S21), the temperature display of the cold chamber 31 and the like is performed to the storage temperature display part 60 and the like. Also, when abnormal temperature is detected by the cold room thermistor 86 and the like, and an error occurs (S24: YES), the update period timer 87 is initialized (S21) at the point of time when the occurring error is canceled, and the room temperature in the cold storage 31 and the like when the error is canceled is displayed to the cold storage temperature display part 60 and the like (S23). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a distribution vehicle that includes a storage room in which tableware is stored and is used for the distribution of tableware stored in the storage room, and more particularly to a distribution vehicle that includes temperature display means capable of displaying the temperature in the storage room. is there.

  2. Description of the Related Art Conventionally, a distribution car that includes a storage room in which tableware is stored and adjusts the temperature of the storage room to an appropriate temperature is used in various environments such as hotels and hospitals. These trolleys can adjust the temperature in the storage room to an appropriate temperature, so that the dishes on the tableware can be distributed at an appropriate temperature, and many dishes can be served. It is very useful in environments where food needs to be served.

Here, in these distribution vehicles, the distribution operator needs to accurately grasp the temperature condition in the storage room because it is necessary to distribute the food at an appropriate temperature. In consideration of this point, various kinds of arrangement vehicles having a temperature display unit for displaying the temperature in the storage room have been developed. As a distribution vehicle provided with such a temperature display unit, a distribution vehicle described in Patent Document 1 is known.
JP-A-2005-245975

  In addition, in some arrangement vehicles having a temperature display unit, the temperature in the storage room is detected at any time and the temperature in the storage room is displayed on the temperature display unit in real time. Here, in the case of a distribution vehicle that updates the display of the storage room temperature in real time, it is extremely higher than the actual storage room temperature under various circumstances such as when the door provided in the storage room is opened. A temperature or a low temperature may be displayed on the temperature display unit. This phenomenon is caused by the fact that the display of the temperature display unit is updated in real time, and the user misunderstands by visually recognizing “extremely high temperature display or extremely low temperature display”, so that is not preferable. Absent.

  In order to solve this problem, there is a layout vehicle configured to update the display of the temperature display unit at predetermined time intervals. In such a wheeled vehicle, since the display of the temperature display unit is updated at predetermined time intervals, it is possible to reduce the influence of various situation changes such as when the door is opened. That is, since the temperature display that causes misunderstanding to the user can be reduced, the distribution vehicle that updates the temperature display at a predetermined time interval is more useful than the distribution vehicle that updates the temperature display in real time.

As described above, the distribution vehicle that updates the temperature display at a predetermined time interval has an advantage that it can prevent the dizzying change of the temperature display, but the temperature display is updated at the predetermined time interval. There is a problem in that the previous storage room temperature is displayed until the time has elapsed.
In particular, in a distribution vehicle, a temperature detection function (for example, a thermistor) that detects a temperature adjustment function (for example, a heater unit or a cooling unit) or a temperature detection unit (for example, a thermistor) that detects the temperature in the storage room detects the abnormal temperature. In such a case, the temperature in the storage room changes greatly, so that a large error occurs between the actual temperature in the storage room and the temperature displayed. And since the state where the temperature display greatly deviated from the actual temperature in the storage room is continued for a predetermined time interval at the longest, the user may misunderstand the storage room temperature. .
In addition, in the distribution vehicle that updates the temperature display at every predetermined time interval including the above case, even if the distribution operator wants to immediately know the current temperature in the storage room, the elapse of the predetermined time interval. You have to wait for the temperature display to update. In other words, there is no means for satisfying the request of the laying worker who wants to know immediately in the laying car.

  The present invention has been made in order to solve the above-described conventional problems, and relates to a distribution vehicle including a storage room in which tableware is stored and a temperature display means for displaying the temperature in the storage room, and is suitable for the temperature display means. An object of the present invention is to provide a distribution vehicle capable of displaying various temperatures.

  In order to achieve the above object, the distribution vehicle according to claim 1 is a storage room capable of storing tableware on which food is placed, temperature adjusting means for adjusting the temperature in the storage room, and detecting the temperature in the storage room. An operating means for switching the operation of the temperature adjusting means in a distribution vehicle comprising: a temperature detecting means that performs temperature detection means; and a temperature display means that displays a temperature in the storage room based on a detection result of the temperature detecting means; A time measuring means for measuring a predetermined update period during which the temperature display of the temperature display means is updated; and a display of the temperature display means is updated based on the elapse of a predetermined update period by the time measuring means, and the operating means Display control means for initializing the time measurement result by the time measurement means based on the above operation.

  According to a second aspect of the present invention, the distribution vehicle includes a storage room capable of storing tableware on which food is placed, temperature adjusting means for adjusting the temperature in the storage room, and temperature detection means for detecting the temperature in the storage room. And a temperature display means for displaying the temperature in the storage room based on the detection result of the temperature detection means, and clocks a predetermined update period during which the temperature display of the temperature display means is updated. Based on the elapse of a predetermined update period by the time measuring means and the time update means, the display of the temperature display means is updated, and when an abnormality is detected by the temperature detecting means, the time measurement result by the time measuring means is initialized. And a display control means for converting the display control means.

The distribution vehicle according to claim 1 is used when serving dishes or the like placed on the tableware placed in the storage room while adjusting the temperature in the storage room to an appropriate temperature by the temperature adjusting means. The distribution vehicle is provided with temperature display means. The temperature in the storage room is displayed based on the detection result of the temperature detection means, and is updated as needed every predetermined update period timed by the time measurement means. Is done.
Here, when the operation means for switching the operation of the temperature adjusting means is operated, the time measurement result of the time measuring means is initialized by the display control means, so that the temperature in the storage room at that time is displayed in the temperature display means. Is displayed. As a result, when the layout operator wants to immediately grasp the temperature in the storage room, it is possible to grasp the temperature in the storage room at that time point by simply operating the operation means without waiting for the elapse of a predetermined update period. it can.

In addition, the distribution car according to claim 2 is used when a dish or the like placed on the tableware placed in the storage room is distributed while adjusting the temperature in the storage room to an appropriate temperature by the temperature adjusting means. The distribution vehicle is provided with temperature display means. The temperature in the storage room is displayed based on the detection result of the temperature detection means, and is updated as needed every predetermined update period timed by the time measurement means. Is done.
Here, when an abnormality is detected by the temperature detecting means, the display control means initializes the time measurement result by the time measuring means, so that the temperature in the storage room at that time is displayed on the temperature display means. In other words, since the temperature in the storage room at the time when the abnormality is resolved is displayed on the temperature display means, when returning from the abnormality, the layout operator does not wait for the update period to elapse and the temperature in the storage room at that point in time. Can be grasped.

An embodiment in which the present invention is applied to a so-called wagon type trolley will be described in detail with reference to the drawings.
Here, a wagon-type barge is, for example, a tray of hotel bread, seat bread, etc., containing 10 to 20 meals, stored in a cold and heat-operated cabinet and transported to a place to eat After that, the car is suitable for the barge work in which the tray is taken out from the inside of the cabinet and placed on the top as soon as it is timely, while waiting for the cold and warm operation to restart.

First, a schematic configuration of the layout vehicle 1 according to the present embodiment will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of a distribution vehicle 1 according to the present embodiment.
As shown in FIG. 1, the distribution vehicle 1 includes a movable gantry 2, a main body 3 placed on the movable gantry 2, a top plate 4 provided on the upper portion of the main body 3, and the like.

  In this respect, the movable frame 2 is provided with wheels 11 on the bottom surface thereof, and is movable in the front-rear direction. Furthermore, the brake pedal 12 is equipped in the bottom face, and it can fix to a floor reliably only by depressing the brake pedal 12 lightly. Thereby, the unintentional movement of the layout vehicle 1 can be prevented during standby or sloping ground associated with the layout work.

  Moreover, as shown in FIG. 2, the main body 3 is formed in the inside in the refrigerator compartment 31, the refrigerator compartment 32, and the machine room 33. As shown in FIG. In the refrigerator compartment 31, a tray 17 containing dishes to be kept cold is stored (see FIG. 1). The warm room 32 stores the tray 17 containing the food to be kept warm (see FIG. 1). The machine room 33 is provided with a cooling unit 42 including a compressor 39 and the like. The details of the refrigerator compartment 31, the warm compartment 32, and the machine compartment 33 will be described later in detail with reference to the drawings.

  A warm room door 13, a cold room door 14, and a machine room panel 15 are disposed on the front side of the main body 3 (see FIG. 1). The warm room door 13 is disposed at the front portion of the warm room 32 so as to be freely opened and closed. And the window 16 is formed in the door 13 for warm chambers, The several tray 17 accommodated in the warm chamber 32 can be confirmed. The refrigerator compartment door 14 is disposed at the front portion of the refrigerator compartment 31 so as to be freely opened and closed. Similarly to the refrigerator compartment door 13, the refrigerator compartment door 14 is also provided with a window 16, and a plurality of trays 17 accommodated in the refrigerator compartment 32 can be confirmed. On the other hand, the machine room panel 15 is disposed in the front part of the machine room 33 and is fixed to the opening edge of the front part of the machine room 33 with screws.

  As shown in FIG. 1, an operation panel 20 is provided between the refrigerator compartment door 14, the machine compartment panel 15, and the warm compartment compartment door 13 that are in a vertical arrangement relationship. The operation panel 20 is an operation unit for performing operations related to temperature control of the refrigerator compartment 31 and the warm compartment 32. The details of the operation panel 20 will be described later in detail with reference to the drawings.

A handle 21 is provided at the end of the top plate 4. The handle 21 facilitates the moving operation of the layout vehicle 1 by the handle operator holding the handle 21.
The top plate 4 is provided with a foldable side table 22. The foldable side table 22 can be fixed at a position horizontal to the top surface of the top plate 4, and the tray 17 can be placed on the top plate 4 and the foldable side table 22. That is, the top surfaces of the top plate 4 and the foldable side table 22 can be used as a space for displaying dishes in the tray 17 or a space for performing a serving work.
Although FIG. 1 shows a state in which the folding side table 22 is expanded, the folding side table 22 can be folded along the side surface of the main body 3.

Next, the structure of the refrigerator compartment 31 and the warm compartment 32 of the distribution vehicle 1 which concerns on this embodiment is demonstrated. As shown in FIG. 3, the refrigerating chamber 31 is configured as a heat insulating box whose periphery is covered with a heat insulating material 40 made of urethane foam, and has a structure in which the heat insulating performance in the refrigerating chamber 31 is enhanced.
The warming chamber 32 is configured as a heat insulating box whose periphery is covered with a heat insulating plate 41, and has a structure in which the heat insulating performance in the warming chamber 32 is enhanced. In this regard, because of the size restriction of the main body 3, the refrigerator compartment 31 and the refrigerator compartment 32 are formed adjacent to each other, but the adjacent refrigerator compartment 31 and the refrigerator compartment 32 are formed by the heat insulating material 40 and the insulator plate 41. Therefore, the functions of the refrigerator compartment 31 and the refrigerator compartment 32 are not impaired.

In the machine room 33, as described above, the cooling unit 42 for cooling the refrigerator room 31 is disposed. The cooling unit 42 includes a compressor 39, a condenser, an air cooling fan, an air filter, an evaporator, a capillary, a constant pressure expansion valve, and the like.
Here, the copper pipe 43 which comprises the evaporator of the cooling unit 42 is affixed on the back side of the left-right upper surface of the refrigerator compartment wall surface 34, and is enclosed with the heat insulating material 40 by urethane foam. Accordingly, the air inside the refrigerator compartment 31 is cooled by the copper pipe 43 via the wall surface 34 of the refrigerator compartment. And since the natural convection arises in the refrigerator compartment 31 because the air inside the refrigerator compartment 31 is cooled, the inside of the refrigerator compartment 31 is cooled equally.
In addition, the wall surface 34 of the refrigerator compartment to be cooled is suppressed to about −15 ° C. to about −5 ° C.

  On the other hand, a heater panel 45 is disposed in the warming chamber 32 on the warming chamber wall 35 adjacent to the machine chamber 33. The food stored in the warming chamber 32 can be warmed by the radiation of the far infrared rays of the heater panel 45. Furthermore, the warm air is forcibly circulated in the warm room 32, so that the food stored in the warm room 32 can also be warm.

Here, the configuration of the heater unit 54 related to the warming function of the warming chamber 32 will be described in detail with reference to the drawings. FIG. 4 is an explanatory diagram showing an outline of the configuration related to the heater unit 54.
As shown in FIG. 4, in the warming chamber 32, as described above, the heater panel 45 is provided on the warming chamber wall 35 adjacent to the machine chamber 33, and the code heater 55 is provided on the back side of the heater panel 45. Is arranged.
Further, a partition plate 53 is provided on the back surface side of the heater panel 45 at a position facing the heater panel 45, and an outlet channel 57 is formed between the heater panel 45 and the partition plate 53. Here, a cord heater 55 is disposed on the partition plate 53 on the surface side of the outlet flow path 57. The blowout flow passage 57 communicates with the inside of the warming chamber 32 at the lower portion of the warming chamber 32 through a blowout port 58 formed below the heater panel 45.

On the other hand, on the back side of the partition plate 53, an intake plate 59 is provided at a position facing the partition plate 53, and a suction flow path 49 is formed between the partition plate 53 and the intake plate 59. The suction flow path 49 communicates with the blowout flow path 57 via a heating fan chamber 48 formed on the back side of the intake plate 59.
Here, the heating fan chamber 48 has a heating fan 56 that sucks air in the warming chamber 32 through the suction channel 49 and blows out the air to the warming chamber 32 through the blowout channel 57. It is arranged.
Therefore, when the cord heater 55 and the heating fan 56 installed in the heating fan chamber 48 are driven, the air in the warm storage chamber 32 flows into the suction flow path 49 and passes through the heating fan chamber 48 before being blown out. It flows into the channel 57. The air that has flowed into the blowout flow path 57 is heated by the cord heater 55 to become warm air, and is blown into the warming chamber 32 through the blowout port 58. Since the warm air blown into the warming chamber 32 is again sucked from the suction passage 49, the air flow in the warming chamber 32 has a forced circulation structure of warm air.

  Next, the operation panel 20 for performing operations related to temperature control of the refrigerator compartment 31 and the warm compartment 32 will be described in detail with reference to the drawings. FIG. 5 is an explanatory diagram showing an operation part of the operation panel 20.

As shown in FIG. 5, the operation panel 20 is provided with a refrigeration temperature display section 60, a refrigeration temperature setting operation section 65, a refrigeration operation switch 61, and a refrigeration operation lamp 62 with respect to the refrigerator compartment 31.
The refrigeration temperature display unit 60 is a display unit that displays the internal temperature or the set temperature of the refrigeration room 31 based on a temperature display control processing program to be described later. The internal temperature display in the refrigeration temperature display unit 60 is updated to the internal temperature at that time as needed every predetermined update period. Control related to the display of the refrigeration temperature display unit 60 will be described in detail later with reference to the drawings.
The refrigeration temperature setting operation unit 65 is provided with a refrigeration temperature setting button 66, a refrigeration temperature increase button 67, and a refrigeration temperature decrease button 68. The refrigeration temperature setting button 66 is a button used when setting a set temperature in the temperature control of the refrigeration chamber 31. The refrigeration temperature increase button 67 and the refrigeration temperature decrease button 68 are buttons for increasing and decreasing the set temperature value of the refrigeration chamber 31.

The refrigeration operation switch 61 is a switch for operating or stopping the cooling unit 42. When the refrigeration operation switch 61 is turned on, the operation of the cooling unit 42 is started based on a refrigeration operation control program described later. Is done. That is, by turning on the refrigeration operation switch 61, the refrigeration chamber 31 is cooled based on the set temperature.
The refrigeration operation lamp 62 is a lamp that is turned on and off in conjunction with the refrigeration operation switch 61. That is, when the refrigeration operation switch 61 is turned on, the refrigeration operation lamp 62 is turned on, and when the refrigeration operation switch 61 is turned off, the refrigeration operation lamp 62 is turned off. Therefore, by checking the lighting mode of the refrigeration operation lamp 62, the laying operator can check the driving mode of the cooling unit 42.

Further, the operation panel 20 is provided with a storage temperature display unit 70, a storage temperature setting operation unit 75, a storage operation switch 71, and a storage operation lamp 72 with respect to the storage room 32.
The warming temperature display unit 70 is a display unit that displays the internal temperature or the set temperature of the warming room 32 based on a temperature display control processing program to be described later. The internal temperature display in the temperature storage temperature display unit 70 is updated to the internal temperature at that time as needed every predetermined update period. The control related to the display of the warming temperature display unit 70 will be described in detail later with reference to the drawings.
The warming temperature setting operation unit 75 is provided with a warming temperature setting button 76, a warming temperature increase button 77, and a warming temperature decrease button 78. The warming temperature setting button 76 is a button used when setting a set temperature in the temperature control of the warming chamber 32. The warming temperature increase button 77 and the warming temperature decrease button 78 are buttons for increasing and decreasing the set temperature value of the warming chamber 32.

The warming operation switch 71 is a switch for operating or stopping the operation of the heating fan 56 and the code heater 55. When the warming operation switch 71 is turned on, based on the warming operation control program described later, The operation of the cord heater 55 and the heating fan 56 is started. That is, when the warming operation switch 71 is turned on, the warming chamber 32 is heated based on the set temperature.
The warming operation lamp 72 is a lamp that is turned on and off in conjunction with the warming operation switch 71. That is, when the warming operation switch 71 is turned on, the warming operation lamp 72 is turned on, and when the warming operation switch 71 is turned off, the warming operation lamp 72 is turned off. Therefore, by checking the lighting mode of the warming operation lamp 72, the layout operator can check the driving mode of the code heater 55 and the heating fan 56.

  Here, the setting operation of the set temperature for the refrigerator compartment 31 and the warm compartment 32 will be described. Since the setting operation for the set temperature is the same for both the refrigerator compartment 31 and the refrigerator compartment 32, the operation for setting the preset temperature for the refrigerator compartment 31 will be described as an example.

Usually, in the refrigeration temperature display section 60, the internal temperature of the refrigeration room 31 is lit and displayed. Here, when the refrigeration temperature setting button 66 is pressed, instead of the internal temperature of the refrigeration chamber 31, the current set temperature related to the refrigeration chamber 31 is displayed in a flashing manner on the refrigeration temperature display unit 60.
At this time, by maintaining the state where the refrigeration temperature setting button 66 is pressed, a setting mode in which the set temperature related to the refrigeration room 31 can be changed is set. In this setting mode, by operating the refrigeration temperature increase button 67 and the refrigeration temperature decrease button 68, the set temperature related to the refrigerator compartment 31 can be changed to a desired set temperature. That is, by pressing the refrigeration temperature increase button 67 in a state where the refrigeration temperature setting button 66 is pressed, the set temperature related to the refrigeration room 31 being blinked is increased. When the set temperature related to the refrigerator compartment 31 is to be lowered, the refrigerator temperature lowering button 68 is operated while the refrigerator temperature setting button 66 is pressed.
Then, when the set temperature related to the refrigerator compartment 31 blinking on the refrigerator temperature display unit 60 reaches a desired value, the pressed state of the refrigerator temperature setting button 66 is released. As a result, the value that is blinking is changed to a new set temperature at the same time that the setting mode is exited.

Next, a control system of the layout vehicle 1 according to the present embodiment will be described in detail with reference to the drawings. FIG. 6 is a block diagram showing a control system of the layout vehicle 1.
As shown in FIG. 6, the control system of the allocation vehicle 1 is configured with a control unit 80 as a core. The control unit 80 includes a CPU 81, a ROM 82, a RAM 83, and the like.
The ROM 82 includes a temperature control program related to the refrigerator compartment 31 and a temperature control program related to the refrigerator compartment 32, as well as a later-described storage operation control processing program (see FIG. 7), refrigerator operation control processing program (see FIG. 8), and temperature display. Various programs necessary for controlling the distribution vehicle 1 such as a control processing program (see FIG. 9) are stored. The CPU 81 performs various calculations based on various programs stored in the ROM 82. The RAM 83 is used as a temporary storage unit related to the calculation processing result of the CPU 81 and the like.

Further, the operation panel 20 is connected to the control unit 80. As described above, the operation panel 20 includes the refrigeration temperature display section 60, the refrigeration operation switch 61, the refrigeration temperature setting operation section 65 (that is, the refrigeration temperature setting button 66, the refrigeration temperature increase button 67, the refrigeration temperature decrease button 68), A warming temperature display unit 70, a warming operation switch 71, and a warming temperature setting operation unit 75 (that is, a warming temperature setting button 76, a warming temperature increase button 77, and a warming temperature decrease button 78) are provided. .
Since the functions of the refrigeration operation switch 61, the refrigeration temperature setting operation unit 65, the refrigeration operation switch 71, and the refrigeration temperature setting operation unit 75 have already been described, description thereof will be omitted. Then, an operation signal based on operations of the refrigeration operation switch 61, the refrigeration temperature setting operation unit 65, the refrigeration operation switch 71, and the refrigeration temperature setting operation unit 75 is transmitted to the control unit 80. Control based on the signal is performed.
Then, as described above, the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70 display the room temperature and the set temperature related to the refrigeration chamber 31 and the refrigeration chamber 32, respectively. And the display of the refrigerator temperature display part 60 and the refrigerator temperature display part 70 is controlled based on the temperature display control processing program mentioned later.

The control unit 80 is connected with a warm room thermistor 85 and a cold room thermistor 86.
The warm room thermistor 85 is disposed in the warm room 32 and detects the temperature in the warm room 32. The warming room thermistor 85 transmits the detection result to the control unit 80, so that the control unit 80 controls the temperature of the warming room 32 and the warming temperature display unit based on the detection result of the warming room thermistor 85. 70 display control is performed.
The refrigerator compartment thermistor 86 is disposed in the refrigerator compartment 31 and detects the temperature in the refrigerator compartment 31. And since the refrigerator compartment thermistor 86 transmits the said detection result to the control unit 80, the control unit 80 controls the temperature control of the refrigerator compartment 31 and the display control of the refrigerator temperature display part 60 based on the detection result of the said refrigerator compartment thermistor 86. I do.

The heater unit 54 is connected to the control unit 80 via a temperature control circuit 89. As described above, the heater unit 54 includes the code heater 55, the heating fan 56, and the like. Here, the temperature control circuit 89 performs drive control of the code heater 55 and the heating fan 56 in accordance with a command from the CPU 81.
Further, a cooling unit 42 is connected to the control unit 80 via a temperature control circuit 89. As described above, the cooling unit 42 includes the compressor 39, a condenser, an air cooling fan, an air filter, an evaporator, a capillary, a constant pressure expansion valve, and the like. The temperature control circuit 89 also controls driving of the compressor 39 and the like in accordance with a command from the CPU 81.

An update period timer 87 and a drive control timer 88 are connected to the control unit 80.
The update period timer 87 is a time measuring unit that measures an update period (for example, 15 seconds) in which the temperature display in the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70 should be updated. The update period timer 87 is controlled (start timing, reset, etc.) based on a signal transmitted from the CPU 81 by executing a temperature display control processing program to be described later.
The drive control timer 88 is a time measuring means for measuring a predetermined period related to the start of operation of the compressor 39 and the code heater 55. The drive control timer 88 is always running, and is referred to as appropriate in a refrigeration operation control processing program and a refrigeration operation control processing program to be described later.
The predetermined periods (operation delay period, operation standby period, and simultaneous activation prohibition period) determined by referring to the drive control timer 88 will be described in detail later.

A battery 90 is connected to the control unit 80. Therefore, the battery 90 functions as a drive source related to the control system of the layout vehicle 1. The battery 90 is also connected to the operation panel 20. That is, the battery 90 also functions as a drive source related to the display of the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70.
Here, the battery 90 is configured to be connectable to the external power source 95 via the power connector 91, and can be charged by receiving power supply from the external power source 95. Further, since it is possible to connect to the external power source 95 via the power connector 91, the layout vehicle 1 can also perform various controls using the external power source 95 as a drive source.

Next, the warming operation control processing program in the allocation vehicle 1 according to the present embodiment will be described in detail with reference to the drawings. FIG. 7 is a flowchart of the warming operation control processing program.
The warming operation control processing program is a program for controlling the operation mode of the heater unit 54 and adjusting the temperature of the warming chamber 32 by being executed by the CPU 81.

  As shown in FIG. 7, in the warming operation control processing program, first, the CPU 81 determines whether or not the warming operation switch 71 is turned on. When the warming operation switch 71 is turned on (S1: YES), the CPU 81 stores warming operation start timing data in the RAM 83 based on the drive control timer 88 and drives the heating fan 56. Start (S2). Thereby, since the operation of the heating fan 56 is started (S2), the air in the warm chamber 32 is forcibly circulated in the warm chamber 32 before being heated by the cord heater 55. On the other hand, when the warming operation switch 71 is turned off (S1: NO), the CPU 81 stores the warming operation stop timing data indicating the time when the warming operation switch 71 is turned off in the RAM 83, and The warehouse operation control processing program is terminated.

  When the driving of the heating fan 56 is started (S2), the CPU 81 refers to the drive control timer 88 and determines whether or not the operation delay period has elapsed (S3). Here, the operation delay period is a predetermined period (for example, 5 seconds) from the ON operation of the warming operation switch 71. Accordingly, the CPU 81 refers to the warming operation start timing data stored in the RAM 83 and the drive control timer 88 to make a determination regarding the elapse of the operation delay period. When the driving delay period has elapsed (S3: YES), the CPU 81 shifts the process to S4. On the other hand, if the operation delay period has not yet elapsed, the CPU 81 returns the process to S1. At this time, if the warming operation switch 71 is in the ON state, the operation of the heating fan 56 is continued.

  When the process proceeds to S4, the CPU 81 refers to the warming operation stop timing data stored in the RAM 83 and the drive control timer 88, and determines whether or not the operation standby period has elapsed. Here, the operation standby period is a predetermined period from the previous drive stop of the heater unit 54. When the operation standby period has elapsed (S4: YES), the CPU 81 shifts the process to S5. On the other hand, when the operation standby period has not yet elapsed (S4: NO), the CPU 81 returns the process to S1. Also in this case, if the warming operation switch 71 is in the ON state, the operation of the heating fan 56 is continued.

In S5, the CPU 81 refers to the compressor start time data stored in the RAM 83 and the drive control timer 88 to determine whether or not the simultaneous start prohibition period has elapsed. Here, the simultaneous activation prohibition period is a predetermined period from the start of activation of the compressor 39 constituting the cooling unit 42. The compressor operation start time data is data stored in the RAM 83 in S16 of the refrigeration operation control program to be described later, and is data indicating the time when the operation of the compressor 39 is started.
When the simultaneous activation prohibition period has elapsed (S5: YES), the CPU 81 shifts the process to S6. On the other hand, when the simultaneous activation prohibition period has not elapsed (S5: NO), the CPU 81 returns the process to S1. Also in this case, if the warming operation switch 71 is in the ON state, the operation of the heating fan 56 is continued.

When the process proceeds to S <b> 6, the CPU 81 determines the current temperature in the warm room 32 (hereinafter referred to as the warm room temperature) based on the detection result of the warm room thermistor 85 and the warm room 32 stored in the RAM 83. With reference to the set temperature, it is determined whether or not the temperature in the warm storage room is equal to or higher than the set temperature.
When the temperature in the warm room is equal to or higher than the set temperature (S6: YES), the CPU 81 stops driving the code heater 55 (S7). After stopping the driving of the code heater 55, the CPU 81 returns the process to S1. On the other hand, when the temperature in the warm storage room is lower than the set temperature (S6: NO), the CPU 81 drives the code heater 55. Here, when driving the code heater 55 in the drive stop state, the CPU 81 stores the heater operation start time data in the RAM 83. After driving the code heater 55, the CPU 81 returns the process to S1.
When the process is returned to S1, if the warming operation switch 71 is not turned OFF, the processes of S1 to S8 are continuously performed.

Next, the refrigeration operation control processing program in the allocation vehicle 1 according to the present embodiment will be described in detail with reference to the drawings. FIG. 8 is a flowchart of the refrigeration operation control processing program.
The refrigeration operation control processing program is a program for controlling the operation mode of the cooling unit 42 and adjusting the temperature of the refrigeration room 31 by being executed by the CPU 81.

  As shown in FIG. 8, in the refrigeration operation control processing program, first, the CPU 81 determines whether or not the refrigeration operation switch 61 is turned on. When the refrigeration operation switch 61 is turned ON (S11: YES), the CPU 81 shifts the process to S12. On the other hand, when the refrigeration operation switch 61 is turned off (S11: NO), the CPU 81 stores the refrigeration operation stop timing data indicating the time point when the refrigeration operation switch 61 is turned off in the RAM 83, and performs the refrigeration operation control process. Exit the program.

  In S12, the CPU 81 refers to the drive control timer 88 and the refrigeration operation stop timing data stored in the RAM 83, and determines whether or not the operation standby period has elapsed. Here, the operation standby period in this case is a predetermined period (for example, 3 minutes) from the previous driving stop of the cooling unit 42. When the operation standby period has elapsed (S12: YES), the CPU 81 shifts the process to S13. On the other hand, when the operation standby period has not yet elapsed (S12: NO), the CPU 81 returns the process to S11 again.

  In S13, the CPU 81 determines whether or not the simultaneous activation prohibition period has elapsed. The simultaneous activation prohibition period in this case refers to a predetermined period from the start of operation of the code heater 55 that constitutes the heater unit 54. Specifically, the CPU 81 refers to the drive control timer 88 and the heater operation start timing data stored in the RAM 83 to make a determination regarding the elapse of the simultaneous activation prohibition period. If the simultaneous activation prohibition period has elapsed (S13: YES), the CPU 81 proceeds to S14. On the other hand, when the simultaneous activation prohibition period has not yet elapsed (S13: NO), the CPU 81 returns the process to S11.

After shifting to S <b> 14, the CPU 81 refers to the current temperature in the refrigerating room 31 (hereinafter referred to as the refrigerating room temperature) based on the detection result of the refrigerating room thermistor 86 and the set temperature of the refrigerating room 31 stored in the RAM 83. Then, a determination is made as to whether or not the temperature in the refrigerator compartment is equal to or lower than the set temperature.
When the refrigerator compartment temperature is equal to or lower than the set temperature (S14: YES), the CPU 81 stops the operation of the compressor 39 (S15). After stopping the driving of the compressor 39, the CPU 81 returns the process to S11. On the other hand, when the refrigerator temperature is higher than the set temperature (S14: NO), the CPU 81 operates the compressor 39 (S16). Here, when the operation of the compressor 39 in the operation stop state is started, the CPU 81 stores the compressor operation start time data in the RAM 83. After driving the compressor 39, the CPU 81 returns the process to S11.
When the process is returned to S11, if the refrigeration operation switch 61 is not turned OFF, the processes of S11 to S16 are continuously performed.

  As described above with reference to FIGS. 7 and 8, the cord heater 55 is not driven unless the operation delay period elapses in the layout vehicle 1 according to the present embodiment. Thereby, unnecessary driving / stopping of the cord heater 55 due to chattering or the like of the warming operation switch 71 can be prevented. In addition, since the heating fan 56 forcibly circulates the air in the warming chamber 32 at least during the operation delay period, the temperature distribution in the warming chamber 32 when the code heater 55 is driven can be made uniform. it can.

In the warming operation control processing program, the code heater 55 is not driven unless the operation standby period has elapsed. That is, since the state where the driving of the code heater 55 is stopped can be maintained during the operation standby period, it is possible to prevent the heater unit 54 from being shortened due to unnecessary driving / stopping of the code heater 55.
Similarly, in the refrigeration operation control processing program, if the operation standby period has not elapsed, the operation of the compressor 39 is not started, and the state where the compressor 39 has stopped operating can be maintained during the operation standby period. it can. That is, it is possible to prevent the cooling unit 42 from being shortened due to unnecessary driving and stopping of the compressor 39.

  Further, the distribution vehicle 1 is controlled so as not to drive the code heater 55 unless the simultaneous activation prohibition period has elapsed by the warming operation control processing program. In the refrigeration operation control processing program, the compressor 39 is controlled not to start unless the simultaneous activation prohibition period has elapsed. That is, since the start times of the compressor 39 and the code heater 55 are surely different, an instantaneous increase in current consumption that occurs when the compressor 39 and the code heater 55 are started simultaneously can be suppressed. In addition, by suppressing an increase in instantaneous current consumption, it is possible to prevent a failure of the layout vehicle 1 and the power source.

Next, the temperature display control processing program in the layout vehicle 1 will be described in detail with reference to the drawings. FIG. 9 is a flowchart of the temperature display control processing program.
Here, the temperature display control processing program means that the display of the refrigeration room temperature and the refrigeration room temperature in the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70 is updated periodically, and in a predetermined case, immediately. This is a program for performing control to display the temperature in the warm room and the temperature in the cold room.

As shown in FIG. 9, when the execution of the temperature display control processing program is started, first, the CPU 81 initializes the time measurement result of the update period timer 87 (S21), and starts the time measurement of the update period timer 87 (S22). ). Then, at the same time when the update period timer 87 starts to count, the CPU 81 displays the temperature in the refrigeration room and the temperature in the refrigeration room based on the detection results of the refrigeration room thermistor 85 and the refrigeration room thermistor 86. The information is displayed on the display unit 70 (S23).
After displaying the temperature on the temperature display unit corresponding to the connected thermistor, the CPU 81 shifts the process to S24.

After shifting to S24, the CPU 81 determines whether or not an abnormal temperature is detected by the warm room thermistor 85 and the cold room thermistor 86. That is, the CPU 81 determines whether or not the temperature in the cold room and the temperature in the cold room based on the detection results of the cold room thermistor 85 and the cold room thermistor 86 are abnormal temperatures.
In the allocation vehicle 1 according to the present embodiment, when the connection to the warm room thermistor 85 and the cold room thermistor 86 is disconnected, as a detection result, an extreme warm room temperature, a cold room temperature (for example, Infinite) is transmitted to the CPU 81. Therefore, when the connection relating to the warm room thermistor 85 and the cold room thermistor 86 is disconnected, an abnormal temperature is detected in the process of S25.
When the abnormal temperature is detected (S24: YES), the CPU 81 shifts the process to S27. On the other hand, when the abnormal temperature is not detected (S24: NO), the CPU 81 shifts the process to S25.

When the abnormal temperature is not detected (S24: NO) and the process proceeds to S25, the CPU 81 determines whether or not the refrigeration operation switch 61 or the refrigeration operation switch 71 is turned on. When the refrigeration operation switch 61 or the warm storage operation switch 71 is turned on (S25: YES), the CPU 81 returns the process to S21. On the other hand, if neither the refrigeration operation switch 61 nor the refrigeration operation switch 71 is operated (S25: NO), the CPU 81 proceeds to S26.
Here, when the refrigeration operation switch 61 or the warm storage operation switch 71 is turned on, the process returns to S21, the timing of the update period timer 87 is initialized (S21), and the timing of the update period timer 87 is started. (S22) Since the indoor temperature display (S23) is performed, when the refrigeration operation switch 61 or the refrigeration operation switch 71 is operated, the indoor temperature at that time is displayed as a temperature. That is, the serving operator can immediately grasp the room temperatures of the refrigerator compartment 31 and the refrigerator compartment 32 only by operating the refrigerator operation switch 61 and the refrigerator operation switch 71.

In S26, the CPU 81 refers to the update period timer 87, and determines whether or not an update period (for example, 15 seconds) has elapsed. If the update period has elapsed (S26: YES), the process returns to S21. As a result, the update period timer 87 starts timing for the next update period (S21, S22), and the temperature display unit (the refrigeration temperature display unit 60, the refrigeration temperature display unit 70) at the next update period transition time. Temperature display (refrigerated room temperature, warm room temperature) is made (S23).
On the other hand, when the update period has not yet elapsed (S26: NO), the CPU 81 returns the process to S24. Therefore, until the update period elapses, the temperature display (the refrigeration temperature display unit 60, the refrigeration temperature display unit 70) has the temperature display (the refrigeration room temperature, the refrigeration room temperature) displayed in the immediately preceding S23. It will be displayed.

  Here, when an abnormal temperature is detected (S24: YES) and the process proceeds to S27, the CPU 81 displays an error on the temperature display unit corresponding to the thermistor that detected the abnormal temperature (S27). For example, when an abnormal temperature is detected by the refrigerator compartment thermistor 86, the CPU 81 displays an error display on the refrigerator temperature display unit 60. After displaying an error on the temperature display unit corresponding to the thermistor that detected the abnormal temperature, the CPU 81 proceeds to S28.

  After shifting to S28, the CPU 81 determines whether or not the error has been resolved. That is, the CPU 81 again obtains detection results from the warm room thermistor 85 and the cold room thermistor 86, and determines whether or not an abnormal temperature has been detected. If the abnormal temperature is still detected and the error has not been resolved (S28: NO), the CPU 81 returns the process to S27 and continues the error display of the corresponding temperature display section. On the other hand, if the detection result from the corresponding thermistor is no longer abnormal temperature, the CPU 81 determines that the error has been resolved (S28: YES), and returns the process to S21. As a result, the timing of the update period timer 87 is initialized (S21), and the update period timer 87 starts timing of the new update period (S22), and the temperature in the refrigerator compartment and the temperature in the refrigerator compartment when the error is resolved are refrigerated. It is displayed on the temperature display part 60 and the warming temperature display part 70 (S23).

Here, a specific example in which the error is eliminated will be described. For example, when the temperature in the refrigerator compartment and the temperature in the refrigerator compartment are abnormal temperatures, if the temperature in the refrigerator compartment and the temperature in the refrigerator compartment are within a predetermined range, the CPU 81 determines that the error has been resolved. To do.
Also, when the connection to the thermistor is broken or when the thermistor itself is broken, the thermistor detects an abnormal temperature by connecting the broken part or replacing the thermistor itself. Things will disappear. Therefore, by taking the above measures, the CPU 81 determines that the error has been eliminated.
As described above, when the error is resolved (S28: YES), the process is returned to S21, so that the error display in the temperature display unit (the refrigeration temperature display unit 60, the storage temperature display unit 70) and the error occurrence time The temperature display is changed to the temperature display at the time of error elimination (S23). That is, when the error is resolved, the layout operator can grasp a normal temperature display indicating the temperature in the refrigerator compartment and the temperature in the refrigerator compartment at that time.

  As described above, the distribution vehicle 1 according to the present embodiment executes the temperature display control processing program, and the refrigeration temperature display unit 60, for each predetermined update period, based on the time measurement result of the update period timer 87, The display of the warm storage temperature display unit 70 is updated. This prevents the temperature display in the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70 from fluctuating immediately and greatly under the influence of the opening of the door 13 for the refrigeration room and the door 14 for the refrigeration room. Can do. That is, the arrangement worker can reliably grasp the room temperatures of the refrigerator compartment 31 and the refrigerator compartment 32 even when the door 13 for the refrigerator compartment is opened.

  In addition, when the refrigeration operation switch 61 and the refrigeration operation switch 71 are turned ON (S25: YES), the timekeeping vehicle 1 resets the time measurement result of the update period timer 87 based on the temperature display control processing program (S21). ), The temperature in the refrigerator compartment and the temperature in the refrigerator compartment at that time are displayed on the refrigerator compartment temperature display 60 and the compartment temperature indicator 70 (S23). That is, by operating the refrigeration operation switch 61 and the refrigeration operation switch 71, the layout operator can immediately grasp the current room temperatures of the refrigeration room 31 and the refrigeration room 32.

  Further, when an abnormal temperature is detected by the warm room thermistor 85 and the cold room thermistor 86 and an error occurs (S24: YES), when the error is resolved (S28: YES), the cold room 31, The current room temperature of the storage room 32 is displayed on the refrigeration temperature display part 60 and the storage temperature display part 70 (S23). That is, when the error is resolved, the serving user can grasp the current room temperature from the temperature display of the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70. In this regard, since the temperature display indicating the room temperature at the time of the error occurrence is not displayed on the refrigeration temperature display unit 60 and the refrigeration temperature display unit 70, the garage car dealer can move the indoors of the refrigeration room 31 and the warm room 32. There is no misunderstanding of temperature.

  The present invention is not limited to the above-described embodiment, and it goes without saying that various improvements and modifications can be made without departing from the spirit of the present invention. For example, in the present embodiment, the present invention is applied to the allocation vehicle 1 including both the cold storage room 31 and the warm storage room 32. However, the present invention is applied only to a distribution vehicle including only the cold storage room 31 and the warm storage room 32. It is also possible to apply it to a chariot. Further, in the present embodiment, the layout vehicle 1 is a manual layout vehicle, but the layout vehicle itself may be applied to an auxiliary electric layout vehicle that is self-propelled by a driving source such as a battery.

It is an external appearance perspective view of the distribution vehicle which concerns on this embodiment. It is explanatory drawing which shows the main body in the state which removed the door for warm rooms, the door for refrigerator compartments, the panel for machine rooms, and the operation panel in the allocation vehicle which concerns on this embodiment. It is explanatory drawing which shows the internal structure of the main body of the layout vehicle which concerns on this embodiment. It is explanatory drawing regarding the heater unit of the layout vehicle which concerns on this embodiment. It is explanatory drawing which shows the operation panel of the layout vehicle which concerns on this embodiment. It is a control system block diagram of the layout vehicle which concerns on this embodiment. It is a flowchart of the warming operation control process program of the allocation vehicle which concerns on this embodiment. It is a flowchart of the refrigeration operation control processing program of the allocation vehicle which concerns on this embodiment. It is a flowchart of the temperature display control processing program of the allocation vehicle which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheel arrangement 17 Tray 31 Refrigeration room 32 Warm storage room 42 Cooling unit 54 Heater unit 60 Refrigeration temperature display part 61 Refrigeration operation switch 70 Warm temperature display part 71 Warm operation switch 80 Control unit 85 Warm room thermistor 86 Refrigeration room thermistor 87 Update period timer

Claims (2)

A storage room for storing dishes on which food is placed;
Temperature adjusting means for adjusting the temperature in the storage chamber;
Temperature detecting means for detecting the temperature in the storage chamber;
Based on the detection result of the temperature detection means, a temperature display means for displaying the temperature in the storage room,
Operation means for switching the presence or absence of operation of the temperature adjusting means;
Clocking means for timing a predetermined update period in which the temperature display of the temperature display means is updated;
Display control means for updating the display of the temperature display means based on the elapse of a predetermined update period by the time measuring means, and for initializing the time measurement result by the time measuring means based on the operation of the operation means; A distribution car characterized by comprising. A storage room for storing dishes on which food is placed;
Temperature adjusting means for adjusting the temperature in the storage chamber;
Temperature detecting means for detecting the temperature in the storage chamber;
Based on the detection result of the temperature detection means, a temperature display means for displaying the temperature in the storage room,
Clocking means for timing a predetermined update period in which the temperature display of the temperature display means is updated;
Display control for updating the display of the temperature display unit based on the elapse of a predetermined update period by the timing unit and initializing the timing result by the timing unit when an abnormality is detected by the temperature detection unit And a distribution vehicle comprising: means.

Images