JP6534110B2 - Packaging body and method of manufacturing packaging body - Google Patents

Description

  The present invention relates to packaging technology, and more particularly to packaging technology for packaging an object by a thermoplastic material.

  2. Description of the Related Art In recent years, various packaging techniques have been used with the spread of various product display methods and mail order services. For example, when packaging an object using a transparent plastic material, there is an advantage that the object can be viewed from the outside.

  As an example, Patent Document 1 discloses a heat sealing and heat shrinking packaging technique using a heat shrinkable foamed plastic sheet having a single layer or a multilayer heat shrinkable polypropylene film and a heat seal layer.

  Further, according to Patent Document 2, a skin film is coated with a skin film extended along the outer shape of the package placed on a base material, and the skin film is bonded at a contact surface with the base material and a covering space Disclosed is a skin pack package whose inside is vacuum degassed.

  Further, according to Patent Document 3, the left and right side blocks are integrally connected to both sides of the base block via hinges, and the base block and the left and right side blocks are provided with recesses for storing products on the inner surfaces of the blocks. Packaging containers are disclosed.

Unexamined-Japanese-Patent No. 5-42967 Unexamined-Japanese-Patent No. 5-201470 JP, 2006-131249, A

  When the package is transported by placing the package in which the object is packaged by heat shrinking the plastic film directly, the package may move in the box, and an impact may be applied to the package and the object inside. . Therefore, such packages are often packaged with cushioning materials. However, even if there is a shock absorbing material, depending on the shape of the object, such as when the shape of the object is complicated or delicate, the object may be deformed or broken due to an impact during transportation, etc. .

  Further, in the skin pack package, the object is fixed by utilizing the tension of the film for the skin pack, so depending on the shape of the object, the object may be deformed or broken under the influence of the film tension. There is a case.

  In addition, in the case of using a plastic packaging container, a mold for the packaging container is required, and the production of the packaging container itself requires labor and cost.

  The present invention has been made in view of the above, and it is possible to package an object in a simple process, and to suppress the breakage and deformation of the object regardless of the shape of the object. And it aims at providing the manufacturing method of a package.

  In order to solve the above-mentioned subject, the package which is one mode of the present invention is formed with the material which has a frame, the subject of the package arranged inside the frame, and the material which has thermoplasticity, and the above-mentioned subject And a packaging material that integrally covers the frame.

  In the package, the frame may have at least two openings communicating the inside and the outside of the frame.

  In the package, the at least two openings may be respectively provided on at least two surfaces facing each other.

  In the package, the packaging material is a film connecting an object covering portion covering the object, a frame covering portion covering the frame, and the object covering portion and the frame covering portion. It may have a part.

  In the package, the frame covering portion covers an area of the surface of the frame excluding at least the bottom of the frame, and a portion of the frame including the bottom can be opened and closed. Also good.

  The packaging body may further include a base portion integrally formed with the packaging material from the same material as the packaging material and extending in a planar manner around the frame.

  The method for producing a package according to another aspect of the present invention has a step of placing a frame on a stage, a step of placing an object to be wrapped inside the frame, and a sheet-like thermoplasticity. The material having thermoplasticity is thermally shredded while covering the material having thermoplasticity on the object and the support while heating the material and exhausting air from below the stage, the material having thermoplasticity while heat shrinking. And integrally covering the object and the frame.

  A method of manufacturing a package according to still another aspect of the present invention includes the steps of: wrapping a frame and an object of the package disposed inside the frame with a sheet-like material having thermoplasticity; B. covering the object and the frame integrally with the thermoplastic material while heat shrinking the thermoplastic material by heating the plastic material.

  In the method of manufacturing the package, the frame has at least two openings communicating the inside and the outside of the frame, and the material having a thermoplastic property is thermally shrunk while the material is thermally contracted. And the inner side of the frame from the at least two openings to cover the inner side of the frame and the object, and the object may be fixed to the frame.

  According to the present invention, since the object and the frame of the package are integrally covered with the material having thermoplasticity, the object is fixed to the frame through the material having thermoplasticity, and the object is heated. It is protected by the material and frame which have plasticity. Therefore, it is possible to package the object in a simple process, and to suppress breakage or deformation of the object regardless of the shape of the object.

It is a perspective view which illustrates the packing object concerning the embodiment of the present invention. It is a front view of the package shown in FIG. It is AA sectional drawing of the package body shown in FIG. It is BB sectional drawing of the package body shown in FIG. It is a bottom view of the package shown in FIG. It is a figure which shows the state which opened the bottom face of the package body shown in FIG. It is a perspective view which shows an example of the thermoforming apparatus used for manufacture of the package which concerns on embodiment of this invention. It is a front view which shows typically the internal structure of the thermoforming apparatus shown in FIG. It is a perspective view which shows typically the structure of the fixed cassette shown in FIG. It is a flowchart which shows the manufacturing method of the package body which concerns on embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing method of the package body which concerns on embodiment of this invention. It is a schematic diagram which shows the modification of the frame used in the package body which concerns on embodiment of this invention.

  Hereinafter, a package and a method of manufacturing the package according to the embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited by these embodiments. Further, in the descriptions of the respective drawings, the same parts are denoted by the same reference numerals.

  The drawings referred to in the following description merely schematically show the shapes, sizes, and positional relationships to the extent that the contents of the present invention can be understood. That is, the present invention is not limited to only the shapes, sizes, and positional relationships illustrated in the drawings.

  FIG. 1 is a perspective view illustrating a package according to an embodiment of the present invention. FIG. 2 is a front view of the package shown in FIG. FIG. 3 is a cross-sectional view of the package shown in FIG. FIG. 4 is a cross-sectional view of the package shown in FIG. FIG. 5 is a bottom view of the package shown in FIG. FIG. 6 is a view showing a state in which the bottom of the package shown in FIG. 5 is opened.

  As shown in FIGS. 1 to 6, a package 1 according to an embodiment of the present invention includes a frame 11 and an object (hereinafter, also simply referred to as an object) of a package disposed inside the frame 11. And a packaging material 12 for covering the object 10 and the frame 11. Further, around the frame 11, a base portion 13 integrally formed of the same material as the packaging material 12 is provided.

  Although FIG. 1 illustrates a toy doll (figure) as the object 10 of packaging, the type, shape, size, and material of the object 10 are not particularly limited, and a vacuum forming method using a thermoplastic material is used. As long as it is a solid object that can be coated by the above, it is possible to package anything as the object 10.

  The frame 11 is a frame-like member provided with a space on the inside, and maintains the overall shape of the package 1 as a framework or core of the package 1 and protects the object 10 disposed on the inside. It has a function. The inside of the frame 11 and the outside of the frame 11 communicate with each other at at least two openings 14 a and 14 b.

  Here, in the present application, “arrange inside” means to simply arrange the object 10 in the space existing inside the frame 11, and arrange so that the object 10 fits inside the space. It is not the intention to limit to. That is, it does not exclude that part of the object 10 protrudes from the openings 14a and 14b of the frame 11.

  The shape and structure of the frame 11 are not particularly limited as long as at least two openings that connect the inner space and the outer space are provided. For example, as the shape of the frame 11, as shown in FIG. 1, the outer side surface of a triangular prism or other polygonal column or column having a hollow inside and both end surfaces open as shown in FIG. Various shapes can be adopted such as a bowl shape, a cone shape, a polygonal pyramid shape, a frustum shape, and a dome shape.

  Moreover, as a structure of the frame 11, if the shape mentioned above can be formed, it will not be specifically limited. Specifically, the frame 11 may be produced by combining various members such as a plate-like member and a rod-like member, or the frame 11 may be produced, for example, by cutting the inside of a block-like member. . Alternatively, the frame 11 may be manufactured by providing an opening on the side surface of the hollow container in advance, such as a plastic bottle.

  As a material of the frame 11, any material can be used as long as it can maintain its shape even if heating and exhausting are performed in the step of thermoforming described later. Specific examples thereof include metals, wood, glass, ceramics, stone materials, hard plastics, resin materials such as expanded polystyrene and urethane foam, and paper materials such as cardboard and cardboard.

  In this embodiment, the three rectangular plate portions 11a, 11b, and 11c are formed by bending a rectangular cardboard at two places on the long side, and the end portions are adhered with an adhesive tape or the like to form a triangular prismatic frame body. 11 is produced. In this case, the openings 14a and 14b are respectively formed in two places of two mutually opposing surfaces (front and back in FIG. 1) of the frame 11 (see FIG. 4).

  By arranging the object 10 on the inner side of such a frame 11, specifically, on the inner wall of one plate portion 11c, the other plate portions 11a and 11b are placed above the object 10 like a roof. It will be covered. Here, preferably, the width w of the frame 11 is equal to or greater than the width of the object 10 disposed inside, so that the object 10 fits below the plate portions 11 a and 11 b. Thus, the object 10 can be protected from impact on the object 10 from the upper side of the frame 11 and the side where the plate portions 11a and 11b exist.

  The packaging material 12 is formed by a thermoforming method (vacuum forming method) using a material having thermoplasticity (hereinafter referred to as a thermoplastic material). As a thermoplastic material, the thermoplastic resin material and the composite material containing a thermoplastic resin are mentioned, for example. Specific examples of the thermoplastic material forming the packaging material 12 will be described later. As the packaging material 12, a transparent resin material may be used, or the packaging material 1 may be provided with a decorative property by using the packaging material 12 to which a pattern or a coloring is given. In the present embodiment, since the transparent thermoplastic resin material is used as the packaging material 12, the object 10 and the frame 11 coated on the packaging material 12 can be visually recognized from the outside.

  The packaging material 12 excludes the contact area 10 a between the object 10 and the frame 11 and the bottom surface 11 d of the frame 11 among the surface of the object 10 and the surface (inner wall surface, outer wall surface, and side surface) of the frame 11. The entire area is integrally covered and further integrated with the base portion 13 extending around the frame 11. In detail, the packaging material 12 includes a first covering portion 12a covering the object 10 from the opening 14a side of the front, a second covering portion 12b covering the object 10 from the opening 14b side of the back, and a frame 11 And a film portion 12d connecting the first covering portion 12a and the second covering portion 12b to the third covering portion 12c.

  The first covering portion 12 a and the second covering portion 12 b (object covering portion) protect the surface of the object 10, and except for the contact area 10 a of the object 10 with the frame 11, It is formed to be in close contact with the surface. Therefore, the first covering portion 12a and the second covering portion 12b have a shape conforming to the surface shape of the object 10, and the shape of the object 10 from the outside of the first covering portion 12a and the second covering portion 12b It can be viewed visually. When the packaging material 12 is formed of a transparent material, it is also possible to visually recognize the surface state of the object 10 from the outside.

  The third covering portion 12 c (frame covering portion) is also formed in close contact with the inner wall surface, the outer wall surface, and the side surface of the frame 11.

  The film portion 12d is formed to be bridged between the first covering portion 12a and the second covering portion 12b covering the object 10 and the portion covering the inner wall surface of the frame 11 in the third covering portion 12c. It is done. Thus, the object 10 is fixed to the frame 11 by connecting the first covering portion 12 a and the second covering portion 12 b and the third covering portion 12 c by the film portion 12 d.

  Although FIGS. 3 and 4 schematically show a state in which the film portion 12d is disposed on one plane located at the center of the width w direction of the frame 11, the film portion 12d is thin. Because it is in the form of a membrane, it is not necessarily disposed on one plane, and the position is not limited to the center in the width w direction. In addition, wrinkles and slight variations in thickness may be observed in the film portion 12d.

  The base portion 13 is integrally formed with the packaging material 12 by the same material as the packaging material 12 and extends around the frame 11 along the same plane as the bottom surface 11 d. Here, depending on the shape of the frame 11, it may be difficult to make the package 1 stand on its own. Even in such a case, by providing the base portion 13, the package 1 can be stably made to stand on its own. The shape and size of the base portion 13 are not particularly limited. For example, when packing the package 1 in a box etc., you may cut the base part 13 according to the bottom faces, such as a box. Thereby, the movement of the package 1 inside the box or the like can be suppressed without separately using a shock absorbing material or the like. Moreover, when displaying the package 1 on a display shelf etc., you may cut the base part 13 according to space, such as a display shelf. Of course, the base portion 13 may not necessarily be provided.

  As shown in FIG. 5, when the package 1 is viewed from the bottom side, the bottom surface 11 d of the frame 11 (the back side of the plate portion 11 c) is exposed without being covered by the packaging material 12. Therefore, the bottom surface 11d may be openable and closable. For example, after the rectangular plate-like member is bent to form three plate portions 11a, 11b and 11c, the end portions of the plate-like members are temporarily fixed using, for example, the adhesive tape 15 without completely fixing them. Keep it. Thereby, as shown in FIG. 6, the plate portion 11c can be opened by peeling off the adhesive tape 15. Alternatively, a lid structure that can be opened and closed may be provided on part of the plate portion 11c.

  As shown in FIG. 4, the object 10 is placed on the plate portion 11c, and the inner wall side of the plate portion 11c is covered with the third covering portion 12c. Therefore, when the plate portion 11c is opened as shown in FIG. 6, the bottom surface (contact area 10a with the frame 11) of the object 10 and the third covering portion 12c are exposed in the opening 16. The object 10 can be taken out from the package 1 by peeling the first covering portion 12 a and the second covering portion 12 b from the object 10 so as to spread the third covering portion 12 c from the opening 16.

  Next, a method of manufacturing the package according to the present embodiment will be described. FIG. 7 is a perspective view showing an example of a thermoforming apparatus used for manufacturing the package according to the present embodiment. FIG. 8 is a front view schematically showing an internal structure of the thermoforming apparatus shown in FIG. FIG. 9 is a perspective view schematically showing the structure of the fixing cassette shown in FIG.

  Here, in the present application, a member having a thickness of less than about 0.20 mm (or less than about 0.25 mm) generally referred to as a film, and a thickness of about 0.20 mm or more generally referred to as a sheet (or about 0). These are collectively referred to as sheet materials without distinction from members of .25 mm or more).

  As shown in FIGS. 7 and 8, the thermoforming apparatus 100 includes a chamber 101, a heating source 102 installed in the chamber 101, a stage 105 in which an air vent 106 is bored, and a heating source for the stage 105. And a vacuum suction source 107 installed on the opposite side of 102. In the following description, the direction in which the heating source 102 is provided with respect to the stage 105 is referred to as the upper side, and the direction in which the vacuum suction source 107 is provided is referred to as the lower side.

  The size and shape of the chamber 101 are not particularly limited, and may be appropriately selected in accordance with the size and shape of the object 10. In the present embodiment, a substantially rectangular chamber 101 is used, which is miniaturized so as to be mountable on a desk.

  A part of the front of the chamber 101 (upper part of the stage 105) is an open window W, through which the object 10, the fixed cassette 120, etc. can be taken in and out of the chamber 101.

  The panel below the window W is provided with a thermometer 103 for measuring and displaying the temperature in the chamber 101, a power switch 104 of the heating source 102, and a power switch 108 of the vacuum suction source 107.

  The heat source 102 is, for example, an electric heater, and when the sheet material SH is disposed in the vicinity (downward) of the heat source 102, the temperature is controlled to a temperature at which the sheet material SH can be sufficiently softened. For example, when general-purpose resin such as vinyl chloride resin is used as the material of the sheet material SH, heating is performed so that the atmosphere in the chamber 101 (specifically, in the vicinity of the heating source 102) becomes, for example, about 40 ° C to 90 ° C. The temperature in the chamber 101 and the set temperature of the heating source 102 may be appropriately determined in accordance with the material, thickness, and the like of the sheet material SH.

  The stage 105 is a pedestal on which the frame 11 is placed when the package 1 is manufactured. The stage 105 is provided with a step so that the central portion 105 a is slightly higher than the peripheral portion 105 b. By providing such a step, the fixed cassette 120 can be sufficiently pulled down to the height of the central portion 105 a of the stage 105 when the package 1 is manufactured. Further, a large number of air vent holes 106 are formed on the entire surface of the central portion 105 a of the stage 105. In the present embodiment, the small holes provided in the punching board are used as the air vent holes 106 by manufacturing the stage 105 using the punching board.

  The vacuum suction source 107 is constituted of, for example, a vacuum pump and a motor built in the lower part of the chamber 101, and forcibly exhausts the inside of the chamber 101 through an air vent hole 106 formed in the stage 105.

  In the chamber 101, a cassette fixing frame 111 for supporting the fixing cassette 120 is disposed movably in the vertical direction. The cassette fixing frame 111 is a U-shaped frame provided with a guide groove 112 into which the fixing cassette 120 is inserted. Further, four guide poles 113 are provided at four corners in the chamber 101 so as to penetrate four places of the corner of the cassette fixing frame 111. The fixed cassette 120 can move up and down along the guide poles 113 while maintaining a state parallel to the stage 105.

  Guide slits 109 are provided on both side surfaces of the chamber 101. The cassette fixing frame 111 is connected with two handles 114 that pass through the guide slits 109. By moving these handles 114 up and down along the guide slits 109, the cassette fixing frame 111 can be moved between the heating source 102 and the stage 105. Also, a stopper is provided on the handle 114, and the cassette fixing frame 111 can be temporarily fixed at a desired height.

  FIG. 9 is a perspective view showing the structure of the fixing cassette 120 for holding the sheet material SH. As shown in FIG. 9, the fixing cassette 120 includes a first frame 121 and a second frame 122 which sandwich the sheet material SH. The first frame 121 and the second frame 122 are respectively provided with a step concave portion 123 and a step convex portion 124 fitted to each other. The outer edge of the step recess portion 123 and the outer edge of the step protrusion portion 124 have a size substantially corresponding to the outer edge of the sheet material SH.

  Pin-shaped male blades 126 are provided in the stepped recess 123 at predetermined intervals. In addition, a concave female blade 127 to which the male blade 126 can be fitted is provided at a position where the stepped convex portion 124 faces the male blade 126. When the sheet material SH is disposed in the stepped recess 123 of the first frame 121 and covered with the second frame 122, and the sheet material SH is strongly sandwiched between the first frame 121 and the second frame 122, the male blade 126 and the female The fixing attachment hole SH1 is bored in the peripheral portion of the sheet material SH by the blade 127. Further, the male blade 126 is engaged with these fixing attachment holes SH 1, and the sheet material SH is fixed to the fixing cassette 120.

  The fixing attachment hole SH1 of the sheet material SH may be formed in advance. In this case, when arranging the sheet material SH in the stepped recess 123 of the first frame 121, the fixing attachment hole SH1 may be fitted into the male blade 126. Further, the structure of the fixing cassette 120 is not limited to that shown in FIG. For example, the first frame 121 and the second frame 122 may be connected by a hinge at one side. Alternatively, the female blade 127 may be provided on the first frame 121 side and the male blade 126 may be provided on the second frame 122 side.

  The structure of the thermoforming apparatus used when manufacturing the package 1 is not limited to what is shown in FIGS. 7-9. See also Japanese Patent No. 572303 for details of the thermoforming apparatus.

  FIG. 10 is a flowchart showing a method of manufacturing a package according to the present embodiment. FIG. 11 is a schematic view for explaining the method of manufacturing the package according to the present embodiment.

  First, as preparation for the thermoforming apparatus 100, the sheet material SH is set in the fixing cassette 120 and inserted in advance into the cassette fixing frame 111. In addition, the cassette fixing frame 111 is pulled upward, and a stopper is placed so as to stay immediately below the heating source 102.

  Here, the sheet material SH is a member to be the packaging material 12 that covers the object 10 and the frame 11, and is a sheet-like thermoplastic material. As a material of the sheet material SH (thermoplastic material), it is a material that has thermoplasticity that is softened by heat and thermally shrunk to be in a formable processable state, and can be formed into a sheet or a film. It can be used without limitation. Specific examples include polyvinyl chloride (PVC), amorphous polyethylene terephthalate (A-PET), polypropylene (PP), polystyrene (PS), polyethylene (PE), acrylonitrile butadiene styrene copolymer synthetic resin (ABS resin), etc. Thermoplastic resin (plastic) is mentioned. Further, a foamed sheet formed of expanded polystyrene (PSP), expanded polyethylene (PEF) or the like may be used as the sheet material SH. Furthermore, a sheet formed of engineering plastic such as polycarbonate (PC) or acrylic can also be used as the sheet material SH.

  Alternatively, as the material of the sheet material SH, a composite material in which another material is dispersed in a thermoplastic resin may be used. Examples of the material to be dispersed include fibers and powders of ceramics. In addition, the sheet material SH may be formed of a composite material in which a carbon fiber is impregnated with a thermoplastic resin. Such a composite material is also called a carbon fiber resin material or a carbon fiber reinforced resin (carbon fiber CFRP).

  The thickness of the sheet material SH is not particularly limited, and the thickness may be appropriately selected depending on the purpose and application of producing the package 1, the function to be imparted to the package 1, the material of the sheet material SH, and the like. For example, in order to facilitate removal of the object 10 from the package 1, it is preferable to use a thin (for example, about 0.05 mm to 0.3 mm) sheet material SH. Alternatively, in order to strengthen the protection function of the object 10, it is preferable to use a thick (for example, about 0.4 mm to 2.0 mm) sheet material SH.

  In addition, as the sheet material SH, a colorless and transparent sheet may be used, or a transparent or opaque colored or patterned sheet may be used. When a transparent sheet is used, the object 10 can be visually recognized from the outside of the package 1. Moreover, when using a colored or patterned sheet, the packaging body 1 can be decorated.

  As such a sheet material SH, a thermoplastic sheet or a heat shrinkable film commercially available for thermoforming or packaging may be used, or the above-mentioned thermoplastic material is processed to a desired thickness. Sheets or films may be used.

In step S10, the frame 11 is placed on the stage 105 in the chamber 101 (see FIG. 11). The direction in which the frame 11 is arranged is the direction in which the two openings 14a and 14b are not closed. Specifically, one side surface of the frame 11 may be brought into contact with the stage 105 as the bottom surface 11 d.
In the subsequent step S11, the object 10 is placed inside the frame 11.

  In the subsequent step S12, the sheet material SH is placed on the frame 11 and the object 10 while heating and evacuating the inside of the chamber 101. In detail, the power switch 104 of the heating source 102 is turned on to heat the inside of the chamber 101 to soften the sheet material SH. Further, the power switch 108 of the vacuum suction source 107 is turned on to evacuate the chamber 101. In this state, the stopper of the cassette fixing frame 111 is removed and the handle 114 is pulled down, so that the frame 11 and the object 10 are covered with the softened sheet material SH. At this time, it is preferable to lower the cassette fixing frame 111 sufficiently downward until the sheet material SH contacts the central portion 105 a of the stage 105.

  As a result, the softened sheet material SH (thermoplastic resin) adheres to the outer wall surface and the side surface of the frame 11 while thermally shrinking, and enters the inside of the frame 11 from the openings 14a and 14b to enter the surface of the object 10 And it adheres to the inner wall surface of the frame 11. As a result, the first covering portion 12a, the second covering portion 12b, and the third covering portion 12c are formed, and the thermoplastic resins respectively entering the inside of the frame 11 from the opening 14a side and the opening 14b side The film portions 12d are formed in association with each other. Here, in the thermoforming apparatus 100, since the chamber 101 is exhausted from the lower side of the stage 105 through the air vent hole 106, a shadow is seen from the upper side of the frame 11 (the direction in which the sheet material SH is lowered). The thermoplastic material can be closely adhered also to the region where the heat treatment is performed, specifically, the inner wall surface of the frame 11 or the surface of the object 10 disposed inside the frame 11.

  Thereafter, the power switch 104 of the heating source 102 and the power switch 108 of the vacuum suction source 107 are turned off to cure the softened thermoplastic material (i.e., the packaging material 12). Thereby, the package 1 shown in FIGS. 1 to 6 is obtained. After this, if necessary, part of the base portion 13 or the base portion 13 itself may be cut.

  As described above, according to the present embodiment, since the object to be packaged is integrally covered with the frame together with the packaging material, the surface of the object is protected by the packaging material, and the object is packaged via the packaging material. Can be fixed to the frame. Thereby, even when transporting the package, the object can be fixed to the inside of the frame, and the object can be protected by the frame, thereby suppressing breakage or deformation of the object regardless of the shape of the object. It is possible to

  Further, according to the present embodiment, since the object and the frame are covered with the packaging material by thermoforming, the packaging material after curing is hardly tensioned. Therefore, it is possible to suppress breakage or deformation of the object due to the influence of the tension of the packaging material.

  Further, according to the present embodiment, when the packaging material is formed using a transparent thermoplastic material, the object can be visually recognized from the outside of the package, so it is easy without unpacking the package. The object can be confirmed.

  Further, according to the present embodiment, by using the frame provided with at least two openings, the package in which the object to be packaged is integrally covered with the frame by the packaging material can be easily formed by thermoforming. It can be manufactured by the process.

  Further, according to the present embodiment, since the thermoforming is performed while exhausting air from the lower side of the stage 105 through the air vent holes 106, it is possible to cover the object and the frame with the packaging material.

  In the embodiment described above, the object is placed inside the frame in a standing state, but of course the direction in which the object is placed is not limited to this, for example, even when the object is laid down good.

  Moreover, in the said embodiment, although the target object was arrange | positioned so that it might fit inside a frame, a part of target object may be protruded from a frame. For example, when the package is packed and transported in a box, the frame and the base can prevent the movement of the package in the box.

  Moreover, in the said embodiment, although the case where the external shape used the frame 11 which makes triangle columnar shape was demonstrated, as mentioned above, if the at least 2 opening which connects the inner side and the outer side of a frame is provided The shape of the frame is not limited to this. FIG. 12 is a schematic view showing a modification of the frame used in the package according to the embodiment of the present invention. For example, as shown in FIG. 12, a frame 20 may be used in which the plate-like member 21 on the bottom side and the plate-like member 22 on the ceiling side are connected by two plate-like members 23 arranged on the side. Alternatively, the bottom plate 21 and the ceiling plate 22 may be connected by a plurality of (for example, four) bar members instead of the two plate members 23.

  Moreover, in the said embodiment, although the case where the package 1 was produced with the thermoforming apparatus illustrated in FIG. 7 was demonstrated, if it is an apparatus which can be made to heat-shrink a thermoplastic material and coat a target object, It is possible to produce the package according to the invention. As a specific example, a skin pack packaging machine, a shrink packaging machine, etc. are mentioned.

  For example, when using a skin pack packaging machine, a frame is placed on the skin pack packaging machine instead of the backing usually used in skin pack packaging, and an object is placed on the inside of the frame to heat the skin pack film It may be contracted to cover the frame and the object. Here, the film for skin pack is a thin sheet material (film material) formed of thermoplastic resin (heat-shrinkable plastic) such as polyethylene and polyvinyl chloride.

  Moreover, when using a shrink wrapping machine, it is sufficient to wrap the frame and the object placed inside the frame with a shrink film and heat-shrink the film by heating to cover the frame and the object. Here, the film for shrink is a thin sheet material (film material) formed of a thermoplastic resin (heat-shrinkable plastic) such as polyethylene, polypropylene, polyvinyl chloride, or the sheet material (film material). It is formed into a shape or a cylinder, and is also called a shrink film or a shrink film pack. In this case, the entire frame may be covered with a shrink film and thermally shrunk so that the entire outer wall surface of the frame may be covered with a packaging material made of a heat-shrinkable resin. By opening part of the film, the frame may be exposed from the packaging material in part of the package. In the latter case, the exposed frame portion or a part thereof can be opened and closed (refer to the plate portion 11c illustrated in FIG. 5), and the opening of the frame portion or a trace thereof is opened (exemplified in FIG. The object 10 may be taken out from the opening 16). Of course, after the entire outer wall surface of the frame is covered with the packaging material, a part of the packaging material may be removed to expose a part of the frame. Moreover, it is also possible to produce a package manually by using a shrink film and a heating device such as a dryer.

  The present invention is not limited to the above-described embodiment and modification, and various inventions can be formed by appropriately combining a plurality of components disclosed in the above-described embodiment and modification. For example, some components may be excluded from all the components shown in the above-mentioned embodiment and modification, or even if it is formed combining suitably the components shown in the above-mentioned embodiment and modification. good.

DESCRIPTION OF SYMBOLS 1 package 10 object 10a contact area | region 11, 20 frame 11a, 11b, 11c board part 11d bottom face 12 packaging material 12a 1st coating | coated part 12b 2nd coating | coated part 12c 3rd coating | coated part 12d film | membrane part 13 base part 14a, 14b , 16 openings 15 adhesive tape 21, 22, 23 plate member 100 thermoforming apparatus 101 chamber 102 heating source 103 thermometer 104, 108 power switch 105 stage 105 a central portion 105 a peripheral portion 106 air vent hole 107 vacuum suction source 109 guide slit 111 Cassette fixing frame 112 Guide groove 113 Guide pole 114 Handle 120 Fixing cassette 121 1st frame 122 2nd frame 123 Stepped recess 124 Stepped protrusion 126 Male blade 127 Female blade SH Sheet material SH1 Fixing mounting hole

Claims (6)

Frame body,
An object of packaging disposed inside the frame;
A packaging material which is formed of a thermoplastic material and integrally covers the object and the frame;
Equipped with
The frame has at least two openings communicating the inside and the outside of the frame,
The packaging material is
An object covering portion for covering the object, the first covering portion covering the object from the side of the first opening of the at least two openings, and the first of the at least two openings An object covering portion including a second covering portion covering the object from the side of a second opening different from the opening of
A frame covering portion for covering the frame;
A film unit connecting the object covering unit and the frame covering unit;
The film portion is spread between a portion where the first covering portion and the second covering portion are connected and a portion of the frame covering portion covering the inner wall surface of the frame. body. The package according to claim 1 , wherein the at least two openings are respectively provided on at least two surfaces facing each other. The frame covering portion covers an area of the surface of the frame excluding at least the bottom surface of the frame;
Among the frame, the portion including the bottom surface can be opened and closed, package of Claim 1 or 2. The package according to any one of claims 1 to 3 , further comprising: a base portion integrally formed with the packaging material by the same material as the packaging material and extending in a planar manner around the frame. . Placing a frame on the stage;
Placing an object of packaging inside the frame;
The material having thermoplasticity is thermally shrunk by covering the material having thermoplasticity on the object and the frame while heating the material having thermoplasticity in a sheet form and exhausting air from below the stage. While integrally covering the object and the frame with the material having thermoplasticity;
A method of producing a package comprising: The frame has at least two openings communicating the inside and the outside of the frame,
The material having thermoplasticity covers the outside of the frame while heat shrinking, and enters the inside of the frame from the at least two openings, and covers the inside of the frame and the object. Furthermore, the manufacturing method of the package body of Claim 5 which fixes the said target object with respect to the said frame.

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