JPH0664483U - Simple cool box - Google Patents

Abstract

(57) [Summary] [Purpose] Keeps post-harvest fruits, vegetables, cut flowers, etc. at a suitable temperature and temporarily stores them suitable for transportation. An object is to provide a simple cool box that can be supplied at low cost. [Structure] A frame member (2) made of a columnar foam material, and a wall member (2) having a high-strength synthetic resin film and a synthetic resin cloth adhered to both sides of a plate-like foam material and a metal vapor deposition film adhered thereto. ) A simple cool box composed of and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simple cool box, and more particularly to a simple cool box suitable for storing and transporting fruits and vegetables after harvesting at an appropriate temperature.

[0002]

[Prior art]

 In recent years, in order to prevent quality deterioration over time of vegetables, fruits, etc., a method has been adopted in which they are transported to and stored in a cool storage box immediately after harvesting. Therefore, a vehicle is often used.

[0003] Furthermore, a small lorry is loaded with vegetables, fruits, etc., and mobile sales are carried out to sell these vegetables and fruits on a business trip to a housing complex or a residential area. In these cases, dust, In order to prevent rain and the like from adhering to the loaded items, a plurality of U-shaped frames are erected on the platform of a freight vehicle, and a frame covered with a vinyl sheet or the like is used for this frame. .

[0004]

[Problems to be solved by the device]

 However, in the above method, the harvested products and commodities may be exposed to high temperatures during transportation, and the transporter must carry out the transportation promptly, which is a heavy burden on the transporter. With the improvement of technology in recent years, various vegetables and fruits can be harvested throughout the year. Therefore, proper temperature transportation during harvesting in summer is an important issue. Also, even when it is not in summer, if the hood is exposed to direct sunlight, the temperature inside the sheet rises, and the quality of fruits, vegetables, etc. is likely to deteriorate.

In order to solve such a problem, a method of installing a cool box equipped with a cooling mechanism on a bed of a truck or the like can be considered. However, the conventional cool box is made of metal and has a cooling mechanism. Since it is provided, it is heavy and costly, and there is a problem that it can be applied only to high-priced products.

Therefore, the present invention has been made from the above viewpoint, and an object thereof is to provide a cool box that has a high heat insulating effect, is lightweight, and can be supplied at low cost.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is as follows. The cool box according to the present invention comprises a columnar frame and a plate-shaped wall member.

Although a lightweight resin can be considered as the frame portion, a foam material is used in the present invention. This foam material is, for example, expanded polystyrene, expanded polypropylene, expanded polystyrene or the like, and expanded polystyrene is particularly preferable.

For the wall surface member, at least the high-strength synthetic resin film and the synthetic resin cloth are attached to both surfaces of the plate-shaped foam material, and the metal vapor deposition film is attached. This foam material is made of polystyrene, polypropylene or the like.

Here, the wall surface member may have a reflective layer attached to both surfaces of a plate-shaped foam member. The reflective layer includes at least a foamed polyethylene sheet, the metal vapor deposition film, the high-strength synthetic resin film, and the synthetic resin cloth. Specifically, the expanded polyethylene sheet is bonded to the metal vapor deposition film on the vapor deposition side via the high-strength synthetic resin film. Then, a foam material is attached to the foamed polyethylene sheet side through a synthetic resin cloth.

As the high-strength synthetic resin film, a high-strength polyethylene film, a high-strength polypropylene film, or the like can be considered. Further, at least one surface of the cold storage will be provided with an entrance / exit for loading / unloading the contained items. The inlet / outlet may be opened and closed by making a U-shaped cut in the wall member. Furthermore, in order to improve the sealing rate of the cold storage, a fastener or a magic tape may be provided at the cut.

[0012]

[Action]

 According to the present invention, the frame of the cool box is made of foam material, and the reflective layer is attached to both sides of the plate-like foam material as the wall member, so that the weight of the cool box as a whole can be reduced and the carry box can be carried. Can be done easily.

Further, in the wall surface member, by providing the reflective layers on both sides of the foamed material, heat from the outside of the cool box is reflected and the cooling air inside is prevented from escaping to the outside. This makes it possible to keep the temperature in the cool box substantially constant.

Further, the cooling effect can be increased by introducing a cooling agent into the cold storage. Further, a cooling device may be provided outside the cold storage, and the cold storage according to the present invention and the cooling device may be connected via a duct.

[0015]

【Example】

 An embodiment of the present invention will be described below. FIG. 1 is a perspective view showing an embodiment of a simple cool box according to the present invention.

In the figure, the simple cold storage forms a hexahedron, and each side of the hexahedron is provided with a styrene foam 2 having a triangular prism shape as a frame portion according to the present invention. Further, each surface of the hexahedron is a laminated sheet 1 having a three-layer structure as a wall member according to the present invention.

Then, the laminated sheet 1 is bonded to the styrofoam 2. As a result, the expanded polystyrene 2 and the laminated sheet 1 constitute a cool box. Here, the inlet / outlet 3a and the inlet / outlet 3b are provided on the two surfaces of the cool box. The inlet / outlet 3 is formed by making a U-shaped cut in the laminated sheet 1, and a detailed description will be given later.

The cool box in the present embodiment can be loaded on the bed of a small-sized freight vehicle, so that the outer dimensions are 1700 mm in length, 1200 mm in width, and 1280 mm in height.

FIG. 2 shows an example of joining the laminated sheet 1 and the expanded polystyrene 2 in this embodiment. In this embodiment, the styrofoam 2 has a triangular prism shape with an isosceles triangle having a included angle of 90 degrees as a bottom surface.

Then, the edge portion of the laminated sheet 1 is sewn to the isosceles surface of the triangular prism. FIG. 3 is an enlarged view showing a first specific example of the entrance / exit 3. In the figure, the inlet / outlet 3 is provided with fasteners 32 that mesh with each other on the side surface of the opening / closing portion 30 and the wall surface of the opening portion 31. Thereby, the flap of the opening / closing part 30 is suppressed.

FIG. 4 is an enlarged view showing a second specific example of the entrance / exit 3. In the figure, in addition to the configuration of FIG. 3 described above, a velcro tape 33 that meshes with each other is attached to the opening / closing portion 30 and the opening 31. Further, in the figure, in order to improve the sealing rate, the opening / closing part 30 and the opening part 31 are provided with unevenness on their respective side surfaces so that they are fitted with each other. Further, rubber packing 34 is attached to the mutual fitting surfaces.

In addition, the area of the opening / closing portion 30 may be larger than the area of the opening portion 31 in the configurations of FIGS. 3 and 4. FIG. 5 is a cross-sectional view of the laminated sheet 1 in this example.

In the figure, the laminated sheet 1 has a three-layer structure of a plate-shaped polystyrene (A) having a thickness of 40 mm and sheets (B) attached to both surfaces of the polystyrene (A).

Further, the sheet (B) has a five-layer structure of PET with aluminum vapor-deposited on one side, a film made of high-strength PE, and foamed PE and PE cloth, and the thickness of this sheet (B) is 1 mm. The degree.

From the above, the weight of the cool box in this embodiment is about 50 kilograms, which is 1/6 the weight of the conventional one having the same size and about 300 kilograms. This makes it easy to attach / detach to / from a truck. In addition, the burden on the lorry will be reduced, which will help to improve the fuel consumption of the lorry and save energy resources.

Next, the cold insulation effect of the cold storage in the present embodiment is shown in FIG. In this figure, a cool box having the outer dimensions shown in Fig. 1 is installed at a place where the outside temperature is 35 degrees Celsius. Then, 240 kg of pods are stored in this refrigerator, and (1) no coolant is added, (2) 30 kg of coolant is added, and (3) 50 kg of coolant is added. The change in the surface temperature of the pod was measured. The measurement time was 5 hours.

The graph (1) in the figure shows the temperature change when the coolant is not added, the graph (2) shows the temperature change when the coolant is 30 kg, and the graph (3) is the coolant 50 kg. The temperature change with time is shown.

From FIG. 6, it is possible to keep the temperature inside the cold storage in the cold storage of the present embodiment substantially constant, and by further adding a required amount of coolant to the inside of the cold storage, It is also possible to keep the temperature below 10 degrees Celsius and prevent the deterioration of the quality of the pods.

[0029]

[Effect of device]

 ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the cool box which has a high heat retention effect, is lightweight, and can be supplied at low cost.

[Submission date] March 23, 1993

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction content]

[0001]

[Industrial applications]

The present invention relates to a simple cold storage, for more information, fruits after harvest, vegetables or on a simple refrigerator that is suitable for storage and transport of cut flowers, etc. at an appropriate temperature,.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

Next, the cold insulation effect of the cold storage in the present embodiment is shown in FIG. In this figure, a cool box having the outer dimensions shown in Fig. 1 is installed at a place where the outside temperature is 35 degrees Celsius. Then, 240 kg of pods were stored in this cool box , and changes in the surface temperature of the pods were measured when 30 kg of the coolant and 50 kg of the coolant were introduced. The measurement time was 5 hours.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

The graph (1) in the figure shows the temperature change in the tank , the graph (2) shows the temperature change when 30 kg of the coolant is charged, and the graph (3) is the temperature when 50 kg of the coolant is charged. Show changes.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a cool box.

FIG. 2 is an enlarged cross-sectional view of a stitched portion between a laminated sheet and a frame portion.

[Fig. 3] Enlarged view of entrance and exit

[Figure 4] Enlarged view of the entrance and exit

FIG. 5 is an enlarged sectional view of a laminated sheet.

FIG. 6 is a graph showing the measurement results of the cold insulation effect of this cold storage.

[Explanation of symbols]

 1 ・ ・ Wall material (laminated sheet) 2 ・ ・ Frame part (Styrofoam) 3 ・ ・ Inlet / outlet 3a ・ ・ Inlet / outlet 3b ・ ・ Inlet / outlet 30 ・ ・ Opening / closing part 31 ・ ・ Opening 32 ・ ・ Fastener 33 ・ ・ Magic Tape 34 ··· Rubber packing

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[Procedure amendment]

[Submission date] March 23, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

Claims (3)

[Scope of utility model registration request] 1. A cool box suitable for holding and transporting harvested fruits, vegetables, ikebana, etc. at an appropriate temperature. A simple cool box comprising at least a high-strength synthetic resin film and a synthetic resin cloth, and a wall member having a metal vapor deposition film. 2. The wall member has a reflection layer adhered to both sides of a plate-shaped foam member, and the reflection layer includes at least a foamed polyethylene sheet, the metal vapor deposition film, and the high-strength synthetic resin film. , Having the synthetic resin cloth, bonding the foamed polyethylene sheet to the vapor deposition side of the metal deposition film via the high-strength synthetic resin film, and foaming the foamed polyethylene sheet side via the synthetic resin cloth. A simple cold storage box according to claim 1, wherein a material is attached. 3. The high-strength synthetic resin film is a high-strength polyethylene film, the synthetic resin cloth is polyethylene cloth, and the metal evaporated film is an aluminum evaporated polyethylene terephthalate sheet. Simple cool box.