JP2007293570A - Heat-insulating panel of vending machine and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-insulating panel of a vending machine and its manufacturing method for greatly saving the labor and the time for production, and facilitating mass production. <P>SOLUTION: This panel is equipped with two rectangular surface sheets 4, 4 disposed in parallel at a prescribed interval, edge members 20 inserted along four sides 24 of the surface sheets 4, 4, and a foaming heat-insulating material 1 filled and solidified in a space formed by the edge members 20 and the surface sheets 4, 4. One edge member 20a among the four edge members 20 is constituted of a rubber or plastic packing member 8 forming a hard base part 28 and a soft seal part 29 integrally and simultaneously in two colors. The hard base part 28 of the packing member 8 is inserted to be sandwiched by each one side 24a, 34a of the two surface sheets 4, 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heat insulating panel for a vending machine and a method for manufacturing the same.

In the conventional vending machine heat insulation panel manufacturing method, first, a rectangular plate-shaped heat insulating material is formed in advance by foaming and solidifying urethane foam, and two metal surface sheets are adhered to both surfaces of the heat insulating material. A manufacturing method is known in which a hard resin sash (edge member) is attached along both long sides of the heat insulating material, and a soft resin cylindrical packing is attached to one sash (for example, a patent) Reference 1).
JP 2002-170154 A

  The conventional method for manufacturing such a heat insulating panel includes a step of foaming and solidifying urethane foam to form a heat insulating material, a step of attaching a metal surface sheet to the heat insulating material, a step of attaching a sash, and a sash. It is necessary to go through the process of attaching the packing in order, and it is very time-consuming and time-consuming, so that mass production is difficult. Moreover, since a space for stocking parts being assembled is required for each process, a very large work space is required.

  Accordingly, an object of the present invention is to provide a heat insulating panel for a vending machine and a method for manufacturing the same which can greatly reduce the labor and time of production and can easily perform mass production.

In order to achieve the above object, a method for manufacturing a heat insulating panel of a vending machine according to the present invention includes an edge member provided along four sides of two rectangular surface sheets arranged in parallel at a predetermined interval. Insulation of a vending machine that forms an intermediate body having an internal space, injects and foams a resin liquid while filling the internal space of the intermediate body with the edge member, and fills the internal space with the foamed resin. In the panel manufacturing method, a packing member in which a hard base portion and a soft seal portion are integrally formed by rubber or plastic two-color simultaneous molding is interposed as the edge member along one of the four sides. Then, the resin liquid is injected into the internal space of the intermediate.
Further, the hard base portion of the packing member is interposed so as to be sandwiched between the one side of the two top sheets.

Moreover, the heat insulating panel of the vending machine according to the present invention includes two rectangular topsheets arranged in parallel at a predetermined interval, and edge members interposed along the four sides of the topsheet, In a heat insulating panel of a vending machine comprising the edge member and a foam heat insulating material filled and solidified in a space formed by the top sheet, one edge member of the four edge members However, it is constituted by a rubber or plastic packing member in which a hard base portion and a soft seal portion are integrally molded simultaneously in two colors.
Moreover, the hard base part of the said packing member is interposed so that it may be clamped by the said 1 side of the two said surface sheets.

The present invention has the following remarkable effects.
The heat insulation panel of the vending machine according to the present invention is configured such that one of the edge members interposed along the four sides of the two rectangular surface sheets arranged in parallel is a hard base. Since the soft seal part is composed of a rubber or plastic packing member that is molded simultaneously in two colors, the packing member can be integrated at the same time as the injected and foamed resin liquid is solidified. The trouble of retrofitting a member is unnecessary. Therefore, the labor and time for manufacturing the heat insulation panel can be reduced, and mass production can be easily performed. In addition, according to this manufacturing method, the number of steps for assembling and the like is small, so that there are few places for stocking parts and units in the middle of the assembly, and the working place can be reduced. Then, the packing can be firmly bonded to the board by integrating the packing member (compared with the case where it is retrofitted).
Further, since the hard base portion of the packing member is interposed so as to be sandwiched between one side of the two surface sheets, during the production, the resin liquid is injected into the internal space of the intermediate body. The resin liquid can be surely prevented from leaking. In addition, the strength of the front edge increases in the state of the heat insulation panel of the finished product, so it is excellent in durability, and even if the front door is repeatedly opened and closed and hits the front edge, it is difficult to damage and the packing function deteriorates There is no.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
1 to 4 show an embodiment of a heat insulating panel of a vending machine according to the present invention. This heat insulating panel includes two rectangular surface sheets 4, 4 arranged in parallel at a predetermined interval. , Four edge members (sealing members) 20 interposed along the four sides 24 of the surface sheets 4, 4, the inside formed by the four edge members 20, and the surface sheets 4, 4. And a foam heat insulating material 1 filled and solidified in the space 2. The top sheet 4 has a vertically long rectangular shape, and is made of a non-metallic material such as a glass fiber-containing sheet or paper, or a metal plate.

Next, the four edge members 20 will be described. Of the four edge members 20..., One edge member 20a (disposed in the longitudinal direction on the front side) is formed by simultaneously molding the hard base 28 and the soft seal part 29 in two colors (different materials). This is a rubber or plastic packing member 8 formed at the same time. Specifically, the hard base portion 28 is formed in a U-shaped cross section and is disposed so as to open in the internal space 2 (open backward). Further, the soft seal portion 29 is a strip plate portion integrally formed along the longitudinal direction on the front surface of the hard base 28, and a thin-walled cylindrical seal portion integrally formed on the front surface of the strip plate portion, Have The hard base 28 is sandwiched (interposed) by the one side 24a, 24a on the front side of the top sheets 4, 4, and the soft seal portion 29 protrudes from the one side 24a, 24a to the front side. Yes. Then, the rear surface of the front door of the vending machine is brought into close contact with the soft seal portion 29 of the heat insulating panel set in the vending machine, thereby preventing the lateral temperature movement in the vending machine. As described above, the packing member 8 serves both as a sealing function to be in close contact with the front door in the state of a heat insulation panel as a finished product, and as a function of preventing leakage of the resin liquid injected into the space 2 during the manufacturing process.
Of the four edge members 20..., The three edge members 20 b other than the packing member 8 are formed of a foam member 9 such as a foamed polystyrene, foamed polyethylene, or foamed polyurethane having a square bar shape.

1 and 4, reference numeral 3 denotes a flat vacuum heat insulating material, which includes a flat heat insulating core material and a sealing bag that seals and encloses the heat insulating core material in a vacuum state. The heat insulating core material is, for example, a porous material in which open cells are formed as a whole, such as glass wool or polyurethane foam, and the sealing bag is formed by laminating aluminum vapor-deposited PET and aluminum foil. It has a multilayer structure in which polyethylene or the like is further laminated. When the heat insulating core is sealed inside the sealing bag, it is evacuated and the inside is kept in a vacuum state. The vacuum heat insulating material 3 is integrated with the foam heat insulating material 1 solidified in the space 2, and is disposed at a lower position in the space 2.
The foam heat insulating material 1 is made of foamed polyurethane or the like in which a resin liquid is foamed and solidified.

Moreover, when forming the surface sheet 4 from a glass fiber containing sheet | seat, it is a sheet-like composite material which included the polypropylene resin in the glass fiber, for example, Comprising: A long glass fiber is uniform in one direction or orthogonal shape (cross shape) It is desirable to have the structure arranged in the above, and it has sufficient strength and rigidity, hardly undergoes dimensional change due to thermal expansion and moisture absorption drying, and does not warp. And since the polypropylene resin is contained, the permeation | transmission of the inside of a water | moisture content is prevented, deterioration of the foaming urethane of the foam heat insulating material 1 is prevented, and heat insulation performance does not fall.
Further, when the top sheet 4 is formed from paper, if a hard plate such as a metal is interposed between the top sheet 4 and the vacuum heat insulating material 3, the vacuum heat insulating material 3 is protected against contact of external protrusions and the like. (Not shown).
Further, a screw receiving member 25 having a female screw hole or a lower hole for screwing a screw may be disposed integrally with the foam heat insulating material 1 in the space 2. When a heat insulating panel is set in a vending machine and fixed to an adjacent product storage or the like, a screw cannot be screwed directly to the surface sheet 4 made of glass fiber-containing sheet or paper. Fixing is possible by screwing into the female screw hole or the like.

Next, the manufacturing method of a heat insulation panel is demonstrated. In FIG. 4, two rectangular surface sheets 4, 4 are arranged in parallel at a predetermined interval, and the inner side surface 14, between the surface sheets 4, 4 with the vacuum heat insulating material 3 and the screw receiving members 25. Adhere to 14 with adhesive. Then, the hard base portion 28 of the packing member 8 is sandwiched (interposed) along one long side 24a, 24a of the four sides 24 ..., 24 ... of the surface sheets 4, 4, and the soft seal portion. 29 is projected from one side 24a, 24a. Further, along the remaining three sides 24b, a foamed member 9 is interposed to form a plate-like intermediate body 15 having the internal space 2 (FIG. 4 omits the illustration of one surface sheet 4). did).
Then, the intermediate body 15 set in a foaming jig is pressed from above and below with a pressing device (not shown). Then, as shown in FIG. 4, the nozzle 26 is inserted into the injection hole formed in the edge member 20, the resin liquid F is injected and foamed into the space 2, and the foamed resin is filled into the internal space 2.

2 and 3, after the foamed resin is solidified and the foam heat insulating material 1 is formed, it is taken out from the press device and the jig is removed, and the heat insulating panel is completed as shown in FIG. To do.
Here, when manufacturing a heat insulation panel by extrusion molding, or the assembly method as described above in Patent Document 1, the packing member must be retrofitted to the edge member of the heat insulating material. Not suitable for production. Further, since a plurality of processes are performed, a space for stocking parts, intermediate assembly units, and the like is required for each process, and a large work space must be secured.
On the other hand, according to the manufacturing method of the heat insulation panel of the present invention, the packing member 8 can be integrated together with the injection and solidification of the resin liquid by molding (close molding) that integrally foams in the jig, so that it is retrofitted. There is no need for labor, less labor and time for production, and mass production becomes possible. In addition, since there are few steps such as assembling, a large number of places for stocking parts and the like are not required.

  As described above, the manufacturing method of the heat insulating panel of the vending machine according to the present invention is the edge member 20 along the four sides 24 of the two rectangular surface sheets 4, 4 arranged in parallel at a predetermined interval. ..., an intermediate body 15 having an internal space 2 is formed, and the resin liquid F is injected and foamed into the internal space 2 while preventing leakage by the edge member 20 ... A packing member 8 in which the hard base portion 28 and the soft seal portion 29 are integrally formed by rubber or plastic two-color simultaneous molding is used as an edge member 20 along one side 24a of the four sides 24. Since it is a manufacturing method in which the resin liquid F is injected into the internal space 2 of the intermediate body 15, the packing member 8 can be integrated simultaneously with the solidification of the injected and foamed resin liquid F, and the packing member is attached to the edge member 20. This eliminates the need for retrofitting. Thus, it is possible to reduce the labor and time for manufacturing the heat insulation panel, and mass production becomes possible. In addition, since there are few steps such as assembly, there are few places for stocking parts and the like, and the work place can be reduced. Further, the packing can be firmly bonded to the board by integrating the packing member (compared with the case where it is retrofitted).

  Further, since the hard base portion 28 of the packing member 8 is interposed so as to be sandwiched between the one side 24a, 24a of the two surface sheets 4, 4, the resin liquid F is placed in the internal space 2 of the intermediate body 15. Leakage of the resin liquid F when injecting can be reliably prevented.

In addition, the heat insulating panel of the vending machine according to the present invention includes two rectangular surface sheets 4, 4 arranged in parallel at a predetermined interval, and four sides 24 of the surface sheets 4, 4. Of the four edge members 20... Of the four edge members 20..., And the foamed heat insulating material 1 filled and solidified in the space 2 formed by the edge members 20. Since one edge member 20a is composed of a rubber or plastic packing member 8 in which a hard base portion 28 and a soft seal portion 29 are integrally molded simultaneously in two colors, solidification of the injected and foamed resin liquid F is achieved. At the same time, the packing member 8 can be integrated, and the labor of retrofitting the packing member to the edge member 20 is unnecessary. Thus, it is possible to reduce the labor and time for manufacturing the heat insulation panel, and mass production is easily possible.
Moreover, since the hard base 28 is integrated with the solidified foam heat insulating material 1, the packing member 8 is firmly fixed. Therefore, even if the front door is repeatedly opened and closed and hits the packing member 8, the packing member 8 is unlikely to be separated, and the durability is superior to a heat insulating panel to which the packing member is retrofitted.

Further, since the hard base portion 28 of the packing member 8 is interposed so as to be sandwiched between the sides 24 a and 24 a of the two surface sheets 4 and 4, the resin liquid F is contained in the inner space 2 of the intermediate body 15. It is possible to reliably prevent leakage of the resin liquid F when injected into the inside.
In addition, the strength of the front edge increases in the state of the heat insulation panel of the finished product, so it is excellent in durability, and even if the front door is repeatedly opened and closed and hits the front edge, it is difficult to damage and the packing function is reduced There is no.

It is a perspective view which shows one Embodiment of the heat insulation panel of the vending machine which concerns on this invention. It is an AA expanded sectional view of FIG. It is BB expanded sectional drawing of FIG. It is an explanatory front view which shows a manufacturing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foam heat insulating material 2 Space 4 Top sheet 8 Packing member
15 intermediate
20, 20a Edge member
24, 24a side
28 Rigid base
29 Soft seal part F Resin liquid

Claims (4)

An internal space (2) is provided by interposing an edge member (20) along four sides (24) of two rectangular surface sheets (4) and (4) arranged in parallel at a predetermined interval. An intermediate body (15) is formed, and the resin liquid (F) is injected and foamed into the internal space (2) of the intermediate body (15) by the edge member (20) to prevent leakage. In the manufacturing method of heat insulation panel of vending machine filled with foam resin
One side (24a) of the above four sides (24a) is a packing member (8) made by integrally molding the hard base (28) and the soft seal portion (29) by rubber or plastic two-color simultaneous molding. A method for producing a heat-insulating panel for a vending machine, wherein the resin liquid (F) is injected into the internal space (2) of the intermediate body (15).   The hard base (28) of the packing member (8) is interposed so as to be sandwiched between the one side (24a) (24a) of the two top sheets (4), (4). Of insulation panels for vending machines. Two rectangular topsheets (4) and (4) arranged in parallel at a predetermined interval, and an edge member interposed along four sides (24) of the topsheets (4) and (4) ( 20), and a foam insulation (1) filled and solidified in the space (2) formed by the edge member (20) and the top sheet (4) (4), and the heat insulation of the vending machine In the panel,
A rubber or plastic packing member in which one edge member (20a) of the four edge members (20) integrally molds the hard base portion (28) and the soft seal portion (29) in two colors. (8) It is comprised by the heat insulation panel of the vending machine characterized by the above-mentioned.   The hard base (28) of the packing member (8) is interposed so as to be sandwiched between the one side (24a) (24a) of the two top sheets (4), (4). 3. Insulation panel of vending machine according to 3.

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