JP5319896B2 - Chariot - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a distribution car capable of providing a warm meal by heating in a state where food that has been frozen or refrigerated is stored in providing a meal in a hospital, nursing home, accommodation facility, or the like.

  In order to provide meals in facilities such as hospitals, if all of the ingredients are procured, cooked, stored, and served in the facilities, it is necessary to secure appropriate equipment, space, and personnel in the facilities. For this reason, from the viewpoint of efficiency, there are increasing cases of outsourcing the procurement and cooking of foods in recent years. In this case, it is necessary to provide a warm meal by heating the frozen or refrigerated cooked food provided by an external supplier in the facility. Even in the case of cooking in a facility, a cooked food is once frozen or refrigerated and heated during meals to provide a warm meal.

  In such a case, for example, as described in Patent Document 1, if a distribution car including a storage room for storing food and heating means for heating the food in the storage room at a high temperature is used, it is frozen or refrigerated The prepared cooked food can be heated in the facility to serve a warm meal.

When the food is heated in the storage chamber in this way, the storage chamber has a considerably high temperature. Therefore, it is necessary to fill the inside of the panel constituting the inner wall of the storage chamber with a heat insulating material to provide heat insulation. As such a heat insulating material, a urethane foam or the like is used in order to have high heat insulating properties and maintain the rigidity of the panel.
JP 2003-339454 A

  However, the heat resistance temperature of the urethane-based foam is about 100 to 110 ° C., and if it is heated to a temperature higher than that, the urethane-based foam contracts and voids are generated inside the panel. For this reason, in particular, when the temperature in the storage chamber becomes 100 ° C. or higher in order to heat the frozen or refrigerated food in the storage chamber, a gap is generated inside the panel, and the rigidity of the housing is sufficient. May not be maintained.

  The present invention has been made in view of the above points, and even when the temperature in the accommodation chamber becomes high, the heat insulating material is provided inside the panel constituting the housing in which the accommodation chamber is formed. An object of the present invention is to provide a trolley that can prevent a void due to deterioration of the housing and maintain the strength of the housing.

The invention according to claim 1 is a distribution vehicle A comprising a storage chamber 1 for storing food and a heating means for heating the interior of the storage chamber 1, wherein the storage chamber 1 is filled with a heat insulating material 2 inside. The heat insulating material 2a having a thickness in the range of 10 to 30 mm is formed on the inside of the housing 4 and is disposed at least on the housing chamber 1 side among the heat insulating materials 2. It is characterized by being.

Further, the high-temperature resistant insulation 2a is melamine foam, phenolic resin, and wherein the at least one selected from silicone resins.

Further, the interior of the panel 3, another heat insulating material 2b other than the high-temperature resistant insulation 2a is characterized in that it is filled.

  According to the first aspect of the present invention, when the interior of the storage chamber 1 is heated, the panel 3 filled with the heat insulating material 2 can suppress the heat transfer to the outside and improve the heating efficiency. Even when the inside of the storage chamber 1 is heated to a high temperature, when the heat insulating material 2 is heated by the high temperature heat resistant heat insulating material 2a, shrinkage due to deterioration is prevented and the rigidity of the housing 4 is reduced. Can be prevented.

Moreover , high heat resistance and good heat insulating properties are imparted to the high temperature heat resistant heat insulating material 2a, and further improvement of the heat insulating properties of the housing 4 and further suppression of shrinkage due to deterioration of the heat insulating material 2 can be achieved. it can.

Even when the heat resistance of the other heat insulating material 2b is low, the amount of heat transferred to the other heat insulating material 2b is reduced by the high temperature heat resistant heat insulating material 2a, so that Shrinkage due to deterioration can be suppressed, and a decrease in rigidity of the housing 4 can be suppressed.

  In addition, when the high-temperature heat-resistant heat insulating material 2a alone cannot sufficiently secure the rigidity and heat insulating properties of the entire housing 4 or the weight increases, other heat insulating materials 2b having high rigidity, By using a high-performance or light-weight material together, it is possible to impart sufficient rigidity and heat insulation to the housing 4 or to reduce the weight.

  Hereinafter, the best mode for carrying out the present invention will be described.

  2 and 3 is provided with an electric assist function so that it can be moved with a small operating force, and comprises a main body B and a partition C formed separately from the main body B. Has been.

  The main body B is provided with a base 15 having a wheel 13 attached and a perimeter surrounded by a bumper 14, a box-shaped housing 4 with side surfaces on both sides being openings 16, and the housing 4 except for the openings 16 on both sides. The casing 4 is formed on an exterior panel 17 of a plastic molded product to be exteriorized, and the housing 4 is fixed on the base 15. In FIGS. 2 and 3, reference numeral 18 denotes an operation panel provided with various switches 19 such as a switch for operating a motor for driving the wheel 13, a switch for controlling the heating temperature in the temperature-retaining room 8 and the cooling temperature in the cold-reserving room 9, Reference numeral 21 denotes a handle for controlling the traveling direction of the allocation vehicle A, and 22 denotes a folding work table.

  As shown in FIG. 4, the hot air duct 23 is attached to the housing 4 so as to cross the central portion of the interior of the housing chamber 1, whereby the inside of the housing 4 is connected to the front chamber 24 and the latter half of the front half. It is partitioned into a rear chamber 25. Inside the hot air duct 23, air heated by heating means (not shown) such as a heater circulates, and the inside of the accommodation chamber 1 from the hot air outlets 20 provided on both surfaces of the hot air duct 23. It comes to blow out. Further, a cold air duct 26 is provided on the front and rear wall surfaces in the housing 4, and the cold air cooled by a cooling heat exchanger (not shown) is provided on the surface of the cold air duct 26 on the accommodation chamber 1 side. The cold air outlet 27 is blown into the housing chamber 1.

  The opening 16 of the housing 4 is provided with a door 5 that opens and closes the front chamber 24 and a door 5 that opens and closes the rear chamber 25. Each door 5 is pivoted at both front and rear edges of the opening 16. Each door 5 is formed so that it can be folded by pivoting two panels 36 at their end edges.

  Partition portions C that support the tray 12 are accommodated in the front chamber 24 and the rear chamber 25 of the storage chamber 1, respectively. As shown in FIG. 5, the partition portion C includes a partition 10 and a carriage 28 that supports the partition 10.

  The partition 10 is configured by providing a plurality of upper and lower partition units 11 that are supported by a support column 29 and project on both sides of the support column 29 and are connected in a plurality of upper and lower portions. Each partition unit 11 is provided with a receiving plate 30 on both sides, and a shutter member 31 is provided at the lower end of the partition unit 11 so as to be movable up and down while being elastically biased downward.

  The carriage 28 is made of a frame material, has a plurality of side frames 32 arranged on both sides of the partition 10, and a plurality of support frames projecting toward the partition 10 on the side frames 32. 33 is protrudingly provided. Each support frame 33 is connected to the side surface of the partition unit 11, thereby supporting the partition 10. Wheels 34 are provided at the lower part of the carriage 28, whereby the partition portion C is formed so as to be able to travel independently of the main body portion B.

  The partition portion C is accommodated in the front chamber 24 and the rear chamber 25 of the storage chamber 1 through the opening 16 of the housing 4. At this time, the partition 10 is disposed so as to partition the front chamber 24 and the rear chamber 25 forward and backward. As a result, the front chamber 24 and the rear chamber 25 are partitioned in the front-rear direction, one of the partitioned spaces is the warm room 8 provided with the hot air outlet 20, and the other space is provided with the cold air outlet 27. It becomes the cold room 9.

  A plurality of trays 12 on which food is placed are supported by the partition 10 of the partition section C. At this time, the tray 12 inserts the central portion of the tray 12 while pushing up the shutter member 31 between the upper and lower partition units 11 and places one side portion and the other side portion of the tray 12 on the receiving plate 30. Thus, it is supported by the partition 10. The tray 12 can be removed by pulling out the tray 12 supported by the partition 10. The operation of supporting the tray 12 on the partition 10 or removing the tray 12 from the partition 10 is performed through the opening 16 with the door 5 opened while the partition C is accommodated in the accommodation chamber 1, and the partition C is accommodated. It can also be performed in a state of being taken out from the chamber 1. When the partition part C on which the tray 12 is supported is accommodated in the accommodation chamber 1, one side of the tray 12 is disposed in the warm room 8 and the other side is disposed in the cold room 9. When food that requires heat insulation is placed and food that requires cold preservation is placed on the other side, the food can be kept warm and cold.

  In addition, in the distribution vehicle A, high-temperature heating of the food housed in the warming chamber 8 in the housing room 1 can be performed. At this time, for example, the output of a heating means such as a heater for heating the warm air blown out to the heat-retaining room 8 is formed to be changeable. For example, it can be formed to be heated to 100 to 130 ° C. If it does in this way, in the state which stored the frozen or refrigerated foodstuff in the storage room 8 of the storage room 1, the inside of the storage room 8 will be heated at high temperature until this food will become suitable temperature, and after that, a heat storage will be carried out. The food in 8 can be kept at an appropriate temperature.

  In such a wheel arrangement A, in the present invention, as shown in FIG. 1, the casing 4 in which the accommodation chamber 1 is formed is constituted by a panel 3 having heat insulation properties. Thereby, it is possible to improve the heating efficiency in the heat insulating chamber 8 and the cooling efficiency in the cold storage chamber 9 and prevent the outside of the storage chamber 1 from being heated or cooled. At this time, the housing 4 can be configured by combining a plurality of panels 3 formed in an appropriate shape.

  The panel 3 is configured by filling a heat insulating material 2 in a hollow portion of a hollow exterior 6. The exterior 6 can be formed of an appropriate material such as stainless steel. Moreover, although the appropriate thing is used as the heat insulating material 2, the high temperature heat resistant heat insulating material 2a is arrange | positioned at the storage chamber 1 side in a hollow part. As the high-temperature heat-resistant heat insulating material 2a, a material that does not easily cause thermal shrinkage due to deterioration at high temperatures is used, but preferably it does not shrink when heated from room temperature to 150 ° C., or the volume shrinkage is 5%. It is preferable to use those that are less than. Examples of such high-temperature heat-resistant heat insulating material 2a include glass wool, melamine foam, phenol resin (bakelite), silicone resin, and the like, but other appropriate materials can be used. Further, an appropriate other heat insulating material 2b such as a urethane-based foam can be filled on the outer side in the hollow portion so as to be adjacent to the high temperature heat resistant heat insulating material 2a. In particular, even when only the high-temperature heat-resistant heat insulating material 2a cannot secure sufficient rigidity and heat insulating properties of the entire housing 4 or when the weight of the housing 4 increases, urethane foam is used as the other heat insulating material 2b. By using a lightweight, highly rigid and heat insulating material such as a body, sufficient rigidity and heat insulating properties can be imparted to the housing 4 or the weight can be reduced.

  As such a panel 3, what was manufactured by the appropriate method can be used. One example will be described. First, a heat-resistant material 2a having a high temperature and heat resistance is arranged and spread on the bottom of a box-shaped body made of stainless steel or the like having an opening and an injection port. The opening of the box-shaped body is closed with a plate material made of stainless steel or the like, and the plate material and the box-shaped body are joined by welding or the like. Next, a urethane-based foamable resin composition is injected from the injection port and foamed inside to form a urethane-based foam. Finally, the inlet can be closed to obtain the panel 3.

  When the housing 4 is constituted by such a panel 3, when the inside of the housing chamber 1 is heated, heat is transferred to the other heat insulating material 2b made of urethane foam or the like by the high temperature heat resistant heat insulating material 2a. The amount is reduced, and the temperature rise of the other heat insulating material 2b is suppressed. For this reason, it can suppress that other heat insulating materials 2b, such as a urethane-type foam, deteriorate by heat | fever, and shrink | contract, and can prevent the fall of the rigidity of the panel 3 by a space | gap producing in the panel 3. it can. For this reason, even if it is a case where the heat retention room 8 in the storage chamber 1 is heated to a high temperature of 100 ° C. or higher, it is possible to prevent a decrease in rigidity of the housing 4.

  Moreover, even when the high-temperature heat-resistant heat insulating material 2a alone cannot sufficiently secure the rigidity of the housing 4, or when the high-temperature heat-resistant heat insulating material 2a alone cannot sufficiently secure the heat insulating property of the housing 4, Sufficient rigidity and heat insulation can be imparted to the casing 4 by using a material having high rigidity and heat insulation such as urethane foam as the other heat insulating material 2b.

  The thickness of the heat insulating material 2 in the panel 3 is appropriately set according to the material so that the heat transfer inside and outside the housing 4 can be sufficiently suppressed. It is preferable to set the thickness so that the heat insulating material 2b can sufficiently shield the movement of heat to the extent that deterioration due to heat does not occur. Specifically, it can be formed in the range of 10 to 30 mm.

(A) is a schematic sectional drawing which shows an example of the panel which comprises the housing | casing in this invention, (b) is a schematic sectional drawing which shows an example of the said housing | casing. It is a perspective view which shows the whole structure of a layout vehicle. It is a side view same as the above. An example of schematic structure of a housing | casing is shown, (a) is a side view, (b) is sectional drawing. An example of a structure of a partition part is shown, (a) is a front view, (b) is a side view, (c) is a top view.

Explanation of symbols

A arrangement wheel 1 accommodation room 2 heat insulating material 2a high temperature heat resistant heat insulating material 2b other heat insulating material 3 panel

Claims (1)

In a trolley including a storage chamber for storing food and a heating means for heating the storage chamber, the storage chamber is formed inside a housing constituted by a panel filled with a heat insulating material, and the heat insulation those arranged at least accommodating chamber side of the timber is, melamine foam, phenolic resin, I at least one der selected from silicone resin, high-temperature resistant thermal insulation having a thickness in the range of 10~30mm It is a material, and the inside of the said panel is filled with heat insulating materials other than the said high temperature heat resistant heat insulating material, The distribution vehicle characterized by the above-mentioned.

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