JP5702999B2 - Disposable containers and food in containers - Google Patents

Description

  The present invention relates to a disposable container particularly suitably used for foods such as heating and cooking of foods, and a food containing a container containing foods in the disposable containers.

  In recent years, when baking pastries such as pound cakes or cooking pot dishes such as oden, it is easy to clean up after use, so disposable cups and pots made of paper etc. More and more containers are being used. For example, Patent Document 1 discloses a confectionery container in which the shape of a side wall (peripheral wall portion) is well maintained while being made of thin paper by complicatedly folding thin paper.

However, since this container for confectionery is manufactured by a method of complicatedly folding thin paper one by one, there is a problem that the manufacturing cost is high.
On the other hand, as shown in FIG. 9, as a container formed from a sheet material obtained by laminating a PET film or the like on thin paper or the like, a circular bottom 61 and an edge of the bottom 61 are erected, and wrinkles are repeated in the circumferential direction. There is a gathering cup 60 composed of the formed peripheral wall portion 62. The gathering cup 60 is manufactured at a low cost because a plurality of, for example, circular sheet materials are stacked, and a plurality of the gathering cups 60 are collectively press-molded. Therefore, it is also conceivable to use such a gathering cup 60 for cooking such as pot cooking.

  However, the gathering cup 60 has insufficient shape retention, and there is a problem that if the contents are inserted, the wrinkles of the peripheral wall portion spread and the contents cannot be stably held. In addition, there is a problem that it is difficult to hold the contents after putting them in, for example, from the kitchen to the table. In order to improve the shape retention, it may be possible to use a thicker sheet material. However, the moldability during the production of the gathering cup 60 is deteriorated, and the shape retention is improved when a liquid material is added. There were limits.

As a method for solving such a problem, for example, the shape retaining property of the gathering cup 60 may be supplemented by using a combination of outer frames made of metal in the form shown in FIG. Conceivable.
For example, as shown in FIG. 10, a paper having a bottomless cylindrical main body 71 having a polygonal cross section (in this example, a substantially hexagonal shape), and a flange portion 72 positioned on the lower outer periphery of the main body 71. It is also conceivable to supplement the shape retention of the gathering cup 60 by using the made frame 70 as an outer frame and holding the gathering cup 60 in the main body 71 of the frame 70. The frame body 70 in this example is formed of a single sheet 70 ′ whose paper material is cut into the shape shown in FIG. 11A, and is formed into the shape of FIG. 10 by assembling the sheet 70 ′ when in use. The Prior to use, the sheet 70 'can be stored in a folded state as shown in FIG. 11 (b). Such a paper folding type frame is also disclosed in, for example, Patent Document 3 as a paper holder.

Japanese Patent No. 3051452 Japanese Utility Model Publication No. 7-36940 JP 2000-325236 A

However, when a gathering cup is used in combination with a metal outer frame, and cooking such as cooking in a pot, if it is heated on a hot plate or the like, the outer frame also becomes hot, which is a concern in terms of safety. The It is also conceivable that the metal outer frame damages the plate surface of the hot plate. Also, since the metal outer frame is not suitable for use in a microwave oven, the gathering cup with the outer frame attached is preheated in a microwave oven and then moved to a hot plate for use. It cannot be used.
On the other hand, a paper folding type frame does not become hot like metal even when heated, and there is no fear of damaging the plate surface. It can also be used in a microwave oven.

  However, when manufacturing such a folding-type frame, it is necessary to cut the material paper into a predetermined shape and then fold it by hand, which is very laborious and necessary. The paper area is large, which is disadvantageous in terms of cost.

  The present invention has been made in view of the above circumstances, and has a very low cost disposable container that is excellent in shape retention, ease of transport, and safety, and that is suitable for use in a hot plate or a microwave oven, and the use thereof. The issue is to provide food in containers.

The disposable container of the present invention includes an inner container and an outer frame that holds the inner container. The inner container is a bottomed gathering cup that is formed by press molding of a non-metallic sheet and has a flange on the peripheral wall portion. And the outer frame is formed by press molding of a non-metallic sheet having a thickness larger than that of the non-metallic sheet, and has a bottomed or bottomless cylindrical main body having a flange on a peripheral wall portion. .
The cylindrical main body may have a bottom, and an opening may be formed at the bottom.
The outer frame preferably has a handle connected to the cylindrical main body.
It is preferable that a locking opening for locking to the handle is formed in the peripheral wall portion of the gathering cup.
It is preferable to further include an annular flange member fitted to the outer periphery of the peripheral wall portion of the outer frame. In that case, it is preferable that a locking portion for locking the flange member is formed on the peripheral wall portion of the outer frame. Alternatively, it is preferable that the hook member is formed with a hook portion that is engaged with an upper end of the peripheral wall portion of the outer frame.
An underlay sheet on which the gathering cup is placed may be further provided.
In manufacturing the disposable container according to the present invention, the non-metallic sheet for forming the inner container and the non-metallic sheet for forming the cylindrical main body are stacked and pressed when the disposable container is manufactured. It has the process of shape | molding, It is characterized by the above-mentioned.
The food in a container according to the present invention includes the disposable container and the food in the disposable container.

  According to the present invention, it is possible to provide a very low-cost disposable container that is excellent in shape retention, ease of transport, and safety, and that is also suitable for use in a hot plate or a microwave oven, and a food in a container using the same. .

It is a perspective view which shows an example of the disposable container of this invention, (a) The figure which shows a mode that a gathering cup and an outer frame are piled up, (b) The figure which shows the mode after piling up. It is a perspective view which shows the other example of an outer frame. It is a perspective view which shows the other example of a disposable container, (a) The figure which shows an outer frame, (b) The figure which shows a gathering cup, (c) The outer frame of (a) and the gathering cup of (b) are combined It is a figure. It is a perspective view which shows the usage example of the disposable container provided with the sheet | seat for underlay. It is a figure which shows another example of the disposable container of this invention, (a) The top view of a collar member, (b) It is a perspective view which shows a mode that the collar member of (a) was fitted to the outer frame. It is a figure which shows another example of the disposable container of this invention, (a) The top view of a collar member, (b) It is a perspective view which shows a mode that the collar member of (a) was fitted to the outer frame. It is a perspective view which shows an example of a gathering cup. It is a perspective view which shows an example of a gathering cup. It is a perspective view which shows an example of a gathering cup. It is a perspective view which shows a well-known frame. It is a figure which shows the sheet | seat which forms the frame of FIG. 10, (a) The top view which shows the state which expand | deployed the sheet | seat, (b) It is a perspective view which shows the state which folded the sheet | seat.

Hereinafter, the present invention will be described in detail.
The disposable container of the present embodiment includes a gathering cup as an inner container in which food such as oden, stew, cheese fondue cheese, and the like, and an outer frame as a frame for holding the gathering cup.
FIG. 1 is a view showing a disposable container 10A according to an embodiment of the present invention. As shown in FIG. 1 (a), this disposable container 10A includes a gathering cup 30A in an outer frame 20A and overlaps them. As shown in FIG.1 (b), it is used in the state which hold | maintained the gathering cup 30A in the outer frame 20A. The outer frame 20A and the gathering cup 30A in this example have the same shape and are formed to have substantially the same size.

[Gathering cup (inner container)]
The illustrated gathering cup 30A is formed by a method of press-molding a circular non-metallic sheet, and has a circular bottom portion 31 and a tapered peripheral wall portion 32 erected while gradually expanding from the edge of the bottom portion 31. It consists of and. In the peripheral wall portion 32, one end on the side where the bottom portion 31 does not exist, that is, the upper end 32a is opened, and serves as an inlet for putting contents into the gathering cup 30A. A large number of ridges formed so as to gradually increase in width from the bottom 31 toward the upper end 32a are repeatedly formed in the circumferential wall 32 along the circumferential direction.

The non-metallic sheet forming the gathering cup 30A is a sheet made of a material other than metal. The use in a microwave oven becomes possible by using a non-metallic sheet. In addition, since the non-metallic sheet generally has a lower thermal conductivity than the metallic sheet, it is possible to form the gathering cup 30A that does not easily reach a high temperature up to the peripheral wall portion of the container even when placed on the hot plate. it can. Therefore, the gathering cup 30A made of a non-metallic sheet is suitable for use in cooking.
The non-metallic sheet is not particularly limited, but specifically, a heat-resistant synthetic resin film that does not deform or damage even at the heating temperature on the hot plate; the raw material is wood and / or other plant tissue Natural pulp obtained by performing chemical and / or mechanical treatment, pulp made from cloth or paper, pulp materials such as a mixture of these pulps, known methods such as acid papermaking or neutral papermaking Obtained by making paper according to the above; a sheet having the paper as a base material and having a coating layer formed on at least one surface of the paper base material; a laminate in which a synthetic resin film is laminated on at least one surface of the paper base material Paper; etc. can be used.
Although there is no restriction | limiting in particular as a synthetic resin film in laminated paper, For example, it is a synthetic resin film of thickness 5-40 micrometers which consists of polyethylene, a polypropylene, or these mixtures.

In particular, paper and a paper-based sheet are preferably used because they are not only excellent in heat resistance but also difficult to deform at high temperatures and have appropriate rigidity, and are excellent in convenience as a disposable container. As the paper or paper substrate used for such an inner container, high-quality paper, medium-quality paper, glossy paper, kraft paper, glassine, sulfuric acid paper, and honshi paper are preferable. A coating layer containing water repellent, oil-repellent, water-proofing agent, oil-proofing agent, etc. is provided on one or both sides of a paper substrate such as glossy paper, kraft paper, glassine, sulfate paper, etc. Water-resistant paper and oil-resistant paper imparted with properties are preferred. Furthermore, since sufficient water resistance and oil resistance can be obtained at a high temperature during cooking, the water repellent, the oil repellent, the water repellent, and the oil repellent preferably contain a silicone resin or a fluororesin. The coating amount of these water repellent, oil repellent, water resistant agent, oil resistant agent and the like is not particularly limited, but is 0.01 to 10 g / m ² as the solid content per side.

In particular, glassine made from pulp made from wood, using pulp raw material that has been beaten until the Canadian Standard Freeness (CSF) is less than 100 ml, and finished to high density using a calendar process, etc. And high-density paper such as semi-glassin are used as paper bases, and water-repellent agents such as silicone resins and fluororesins, oil-repellent agents, water-proofing agents, oil-proofing agents, etc. Water-resistant paper and oil-resistant paper can be particularly preferably used. At this time, if necessary, a coating layer is further provided under the water repellent, the oil repellent, the water repellent, the oil repellent, and the like. The effect of can be made easier.
The thickness of the paper substrate is preferably 30 to 100 μm, more preferably 40 to 90 μm. Such a thickness is preferable from the viewpoints of workability and workability when a large number of non-metallic sheets are stacked and press-molded, and ease of handling as an inner container. More preferably, it is 50-80 micrometers.

As the above-mentioned silicone resin used for forming the coating layer, a polysiloxane containing an addition-type vinyl group is used as a base polymer, and polymethylhydrogensiloxane is blended as a cross-linking agent to react in the presence of a platinum catalyst. A polysiloxane having a silanol group at the condensation type terminal as a base polymer and polymethylhydrogensiloxane as a cross-linking agent and subjected to a condensation reaction in the presence of an organotin acylate catalyst: 3 called a silicone resin Those having a three-dimensional network structure formed by condensation using a tetrafunctional silanol can be used.
When forming the oil-resistant layer, the silicone resin is diluted with an organic solvent, or is made into a water-based emulsion or solvent-free form, such as gravure coating, roll coating, air knife coating, Mayer bar coating, etc. Coated with.

As an example of a non-metallic sheet suitable for the formation of the gathering cup 30A, for example, glassine paper (trade name “special SL (processed) 70” manufactured by Oji Specialty Paper Co., Ltd., US basis weight 71 g / m ² , thickness 63.0 μm), a silicone main ingredient (trade name “KS-778E”) manufactured by Shin-Etsu Chemical Co., Ltd. and a curing agent (trade name “PL-56”) are mixed at a mass ratio of 100: 1. One-side oil-resistant paper produced by applying a coating solution diluted with toluene to a concentration of 8% by mass at a dry mass of 1.0 g / m ² can be exemplified.

[Outer frame]
The outer frame 20A of the illustrated example is formed of a bottomed cylindrical main body formed by press-molding a circular non-metallic sheet using the same mold as the gathering cup 30A.
That is, the cylindrical main body of the outer frame 20A is erected while gradually increasing in diameter from the circular bottom 21 having the same shape as the bottom 31 of the gathering cup 30A and the edge of the bottom 21, and is almost the same as the gathering cup 30A. It is comprised from the taper-shaped surrounding wall part 22 which is the same height. In the peripheral wall portion 22, one end (upper end) 22 a on the side where the bottom portion 21 does not exist is open. A large number of ridges formed so as to gradually increase in width from the bottom 21 toward the upper end 22a side are repeatedly formed in the circumferential wall portion 22 along the circumferential direction.

  Thus, the use with a microwave oven becomes possible by forming the cylindrical main body of the outer frame 20A with a non-metallic sheet. Further, the non-metallic sheet generally has a lower thermal conductivity than the metallic sheet, and therefore, it is possible to form the outer frame 20A that is difficult to be heated even when placed on a hot plate.

Further, the cylindrical main body of the outer frame 20A can be stably transported while retaining the gathering cup 30A even when the contents are put in the gathering cup 30A that is the inner container, that is, the gathering cup. It must be harder to deform than 30A.
Therefore, in the present invention, a nonmetallic sheet used for forming the gathering cup 30A as a nonmetallic sheet (hereinafter also referred to as an outer frame forming sheet) used for the cylindrical main body of the outer frame 20A. A sheet having a thickness greater than that of a sheet made (hereinafter sometimes referred to as a gathering cup forming sheet) is used. By using such an outer frame forming sheet, the outer frame 20A effectively suppresses deformation even when the contents are put into the gathering cup 30A and the gathering cup 30A is deformed in the direction of spreading for the contents. can do.

Note that the difficulty of deforming the gathering cup 30A and the cylindrical body is affected by the sheet rigidity of the sheet used as the material, the press molding conditions (such as the width of the ridge), and the size of the peripheral wall portion. Of these, the seat rigidity is an important factor that determines the difficulty of deformation. Therefore, in order to make the cylindrical body of the outer frame 20A harder to deform than the gathering cup 30A, the relationship between the sheet rigidity of the cylindrical body of the outer frame 20A and the sheet rigidity of the gathering cup 30A is specified. Is also possible. However, the sheet rigidity can be measured only for a sheet before being subjected to processing such as press molding, and it is difficult to measure or estimate from the sheet after press molding. In addition, sheet rigidity is determined in combination with factors such as sheet thickness and geometric properties such as a laminated structure, material properties such as density and elastic modulus, etc. receive.
Therefore, in the present invention, “thickness” that can be easily measured even after press molding is adopted as an index of difficulty of deformation of the gathering cup 30A and the outer frame 20A, and the gathering cup is used as the outer frame forming sheet. A thicker sheet than the forming sheet is used.

  As the outer frame forming sheet, preferably, the raw material is chemical pulp such as hardwood bleached kraft pulp, softwood bleached kraft pulp, mechanical pulp such as GP, RGP, TMP, etc. Selected from high-quality paper, medium-quality paper, non-glossy paper, kraft paper, and other acidic paper, neutral paper, and alkaline paper made by a long-mesh Yankee type paper machine and circular paper machine. The These may be either single layer papermaking or multilayer papermaking. In addition, although used paper pulp can also be used as a raw material, it is more preferable not to use used paper pulp from a food use viewpoint.

When a single-layer paper base is used as the outer frame forming sheet, the thickness is preferably in the range of 33 to 400 μm (basis weight is equivalent to about 30 to 350 g / m ² ). A thicker sheet than the gathering cup forming sheet can be selected as appropriate. More preferably, the thickness is in the range of 150 to 400 μm (basis weight is equivalent to about 120 to 320 g / m ² ), and still more preferably the thickness is in the range of 200 to 300 μm (basis weight is equivalent to about 160 to 240 g / m ² ). .)
On the other hand, when a multi-ply paper base is used as the outer frame forming sheet, the thickness is preferably in the range of 120 to 600 μm (basis weight is equivalent to about 100 to 500 g / m ² ). Therefore, a thicker sheet than the gathering cup forming sheet can be selected as appropriate. More preferably, the thickness is in the range of 150 to 400 μm (basis weight is equivalent to about 120 to 320 g / m ² ), and still more preferably the thickness is in the range of 200 to 300 μm (basis weight is equivalent to about 160 to 240 g / m ² ). .)
As a more suitable outer frame forming sheet, regardless of whether it is single-layered or multi-layered, the thickness is in the range of 120 to 600 μm, more preferably in the range of 150 to 400 μm, and still more preferably in the range of 200 to 300 μm. belongs to.
Moreover, the paper material (laminated paper material) which laminated | stacked the paper material etc. which were mentioned above suitably by methods, such as paste bonding and extrusion lamination (lamisand), can also be used.

  Further, the outer frame forming sheet is not limited to the above-mentioned paper base material, so-called synthetic paper using resin as a raw material, heat-resistant laminated paper combining resin and paper, PP, PET, PEN, A heat-resistant film made of resin such as polyimide or a film such as a composite film obtained by appropriately laminating these can also be used. The thickness of the film is preferably 12 to 200 μm, and more preferably 75 to 200 μm in view of rigidity, assembly workability, and the like.

The sheet rigidity as the outer frame forming sheet before press molding is evaluated by, for example, the magnitude of the bending moment required to bend the sheet to a specific angle as measured by the JIS P8125: 2000 Taber stiffness tester method. be able to. Therefore, it is preferable that the outer frame forming sheet has a bending moment value determined by the Taber stiffness tester method larger than that of the gathering cup forming sheet. Specific numerical values are preferably 0.50 mN · m or more from the viewpoint of preventing deformation of the gathering cup 30 </ b> A and 60 mN · m or less from the viewpoint of workability by press molding. A more preferable range is 1.0 mN · m to 30 mN · m, and further preferably 1.5 mN · m to 15 mN · m.
In addition, the sheet | seat which uses the paper made continuously as a base material differs in the Taber stiffness value by the direction to evaluate, even if it is the same sheet, for the anisotropy of the fiber orientation of a base material. In many cases, the stiffness value parallel to the papermaking direction in which the pulp fibers are oriented is maximized, and the stiffness value in the direction perpendicular to the papermaking direction is minimized. Therefore, as the outer frame forming sheet, it is preferable that both the minimum value and the maximum value of the Taber stiffness to be measured are within the preferable range.

As a suitable combination of the outer frame forming sheet and the gathering cup forming sheet satisfying the above conditions, for example, as a gathering cup forming sheet, a paper base having a basis weight of 30 to 100 g / m ² (thickness 30 to 100 μm). A combination using a paper having a basis weight of 120 to 500 g / m ² (thickness of 150 to 600 μm) can be exemplified as the outer frame forming sheet using an oil resistant paper coated with a water / oil resistance agent on the material. The combination is not limited to these.

  Such a gathering cup 30A and the outer frame 20A can be manufactured by a method in which a gathering cup forming sheet and an outer frame forming sheet are separately press-molded using the same mold, but these sheets are overlapped together. 10A of disposable containers can be manufactured with high productivity by press-molding.

Specifically, a plurality of gathering cup forming sheets are stacked on one outer frame forming sheet. Then, using a press molding machine provided with a pair of punches and dies as a molding die, the punch is disposed on the gathering cup forming sheet side, and the die is disposed on the outer frame forming sheet side, and press molding is performed. According to such a method, the gathering cup 30A and the outer frame 20A can be manufactured together with high productivity, and the cylindrical body of the outer frame 20A is formed slightly larger than the gathering cup 30A. The gathering cup 30A can be smoothly and stably stored in the frame 20A.
In the press molding step, the number of sheets for gathering cup formation can be appropriately set according to the thickness of the sheet. In addition, the number of outer frame forming sheets is preferably one as described above from the viewpoint of formability, but may be plural depending on the thickness.

Since the disposable container 10A described above is a combination of the gathering cup 30A and the outer frame 20A, the gathering cup 30A is excellent in shape retention and easy to carry even when contents are put therein.
In addition, since both the gathering cup 30A and the outer frame 20A are formed from a non-metallic sheet, they can be disposable, easy to clean after cooking, light in weight and easy to use. The gathering cup 30A is normally discarded after each use, but the outer frame 20A may be discarded after being used a plurality of times depending on the use situation.
Further, since both the gathering cup 30A and the outer frame 20A are formed from a non-metallic sheet, they are not easily heated to a high temperature even when used on a hot plate, and are excellent in safety and hot. The plate surface of the plate is not damaged. In addition, since it is suitable for use in a microwave oven, the disposable container 10A can be preheated in a microwave oven and then moved to a hot plate for use. large.

        Further, both the gathering cup 30A and the outer frame 20A can be manufactured by press molding. Further, as described above, the outer frame forming sheet and the gathering cup forming sheet are overlapped, and the gathering cup 30A and the outer frame 20A are overlapped. Can also be manufactured at once. Therefore, the disposable container 10A can be manufactured at a very low cost.

        In the above description, the bottomed body having the bottom 21 is illustrated as the cylindrical main body of the outer frame 20A, but it may be bottomless without the bottom. Even in the case of a bottomless shape, the peripheral wall portion of the outer frame is formed by press molding and has a tapered shape with the diameter gradually increased upward, so that the gathering cup 30A can be held inside thereof. The bottomless outer frame can be manufactured by, for example, a method of hollowing out the bottom after press molding.

  Even in the case of a bottom, as shown in FIG. 2, for example, a circular opening 21 a by punching or the like may be formed in the bottom 21. An outer frame made of a bottomless cylindrical body or an outer frame 20B having an opening 21a formed in the bottom 21 as shown in FIG. 2 is adopted, and a gathering cup 30A is accommodated inside thereof, such as a hot plate or a frying pan. When placed on the heating means, the heat from the heating means is easily transmitted to the gathering cup 30A. Therefore, the outer frame can be made bottomless or can be bottomed with the opening 21a according to the type of contents put in the gathering cup 30A. The shape, size, number, arrangement pattern, and the like of the openings to be formed can be appropriately set according to the degree of heating required for the contents. The larger the total area of the openings, the better the heat conduction to the gathering cup 30A, and the smaller the total area, the better the strength of the bottom 21. In addition, the opening here may be formed so that the inner surface and the outer surface of the bottom portion communicate with each other, and the center of the bottom portion 21 is cut into a circular shape or the like as in the example of FIG. It is not limited to a thing, A simple cut is also included. Moreover, the cylindrical main body provided with the bottom part which has an opening part can be manufactured also by the method of press-molding the cyclic | annular nonmetallic sheet | seat which formed the opening part previously besides the method of punching out the center etc. of a bottom part after press molding.

        Moreover, you may provide the handles 24 and 24 in an outer frame, as shown to Fig.3 (a). As in this example, the pair of handles 24, 24 extending upward from the upper end 20a of the cylindrical main body are integrally formed with the cylindrical main body at positions facing each other, so that the user can use each hand 24, The disposable containers each holding 24 and containing the gathering cup 30A in the outer frame 20C can be stably transported from a microwave oven to a hot plate, for example.

Thus, when the handles 24, 24 are provided on the outer frame 20C, the gathering cup to be combined therewith is, for example, as shown in FIG. 3B, on the upper end 32a side of the peripheral wall portion 32 of the gathering cup 30C. It is preferable to form a pair of elongated slit-like locking openings 33, 33 extending in the circumferential direction at positions facing each other by punching or the like. Then, as shown in FIG. 3C, the gathering cup 30 </ b> C can be stably held in the outer frame 20 </ b> C by locking the locking openings 33 and 33 to the handles 24 and 24.
In particular, when the outer frame has a bottomless cylindrical main body, or as shown in FIG. 2, a handle is provided for the outer frame 20B in which the opening 21a is formed in the bottom 21, and the gathering cup 30C If it is set as the structure which latched the locking openings 33 and 33, it can prevent that the gathering cup 30C falls out of the outer frame and falls.

  Further, as shown in FIG. 3 (a), notches 21 and 21 extending toward the lower end 20b of the outer frame 20C are formed on both sides of the handles 24 and 24 of the outer frame 20C, respectively. When 30C is housed in the outer frame 20C, it is preferable that the locking openings 33 and 33 can be locked to the handles 24 and 24 stably.

  In this example, the handles 24, 24 are also formed with ridges derived from press molding at the time of manufacturing the outer frame 20C, but the ridges may not be formed at the handle portions.

In the above embodiment, the handle 24, 24 of the outer frame 20C extends upward from the upper end 20a of the cylindrical main body, and has a pair of extensions with elongated cutouts 21, 21 formed on both sides. The piece-like handles 24 and 24 are illustrated. However, if the notches are formed on both sides, even if the handle does not extend from the upper end of the cylindrical main body, the locking openings 33 and 33 can be locked to the handle. Therefore, the handle does not necessarily extend from the upper end of the cylindrical main body. On the other hand, when it is not necessary to lock the locking openings 33, 33, an extended piece-like handle having notches on both sides may be used.
Further, the handle is not limited to a pair of handles that can be held with both hands, and may be a handle for one hand that does not form a pair, and a pair of extended strip-shaped handles are formed to be longer, Each of the handles may be connected to each other so as to form a “handle” by providing notches and engaging them with each other. Furthermore, the handle may not be connected to the cylindrical main body by integral formation, and only the handle may be manufactured separately and joined to the cylindrical main body for connection.

  Moreover, what is necessary is just to set suitably the position of the latching opening part formed in a gathering cup, a number, a shape, etc. according to the number, structure, etc. of a handle. For example, the shape is not limited to the shape formed by punching, and may be a simple cut.

  Although not shown, a step portion is formed along the circumferential direction in each of the peripheral wall portion of the gathering cup and the peripheral wall portion of the cylindrical main body of the outer frame, and the step portion of the gathering cup and the step portion of the outer frame are related to each other. You may comprise so that it may stop. Thus, by providing the level | step-difference part latched mutually, a gathering cup can be stably hold | maintained within an outer frame. In addition, even in the case of a bottomless outer frame or an outer frame 20B in which a relatively large opening 21a is formed in the bottom portion 21 as shown in FIG. 2, the gathering cup 30A held inside falls out of the outer frame and falls. Can be prevented. The step portion may be formed in one step for each of the gathering cup and the outer frame, or may be formed in a plurality of steps.

  Moreover, the height of the cylindrical main body of the outer frame and the height of the gathering cup may be different. For example, the height of the gathering cup is set larger than the height of the outer frame, and when the gathering cup is stored in the outer frame, the peripheral wall portion of the gathering cup extends above the upper end of the outer frame. . Then, the extended portion may be folded outward so that the folded portion is hooked on the upper end of the outer frame. As described above, by forming the gathering cup so as to be hooked on the upper end of the outer frame, the gathering cup is stabilized in the outer frame, and the outer frame has no bottom, or a relatively large opening 21a is formed in the bottom 21. When it is formed, it is possible to prevent the gathering cup from falling off the outer frame when the disposable container is transported.

In the above description, the disposable container composed of the gathering cups 30A, 30C and the outer frames 20A, 20C is illustrated, but it may be a disposable container further provided with an underlay sheet. For example, when used for cheese fondue or chocolate fondue, as shown in FIG. 4, a circular underlay sheet 50 interposed between the heating surface of a heating means such as a hot plate H and the disposable container 10A is used. Is preferably placed on the heating surface of the hot plate H, and then the disposable container 10A is placed thereon. The melting temperature of cheese for cheese fondue is about 100 ° C., the melting temperature of chocolate for chocolate fondue is about 60 ° C., and these melting temperatures are lower than the general heating temperature in a hot plate. Therefore, by providing the underlay sheet, the contents of the gathering cup 30A can be heated at a lower temperature even when the hot plate is set to the general heating temperature, and the contents can be prevented from being burnt. Can do.
The underlay sheet can be used as appropriate depending on the type of contents, the temperature of the heating means used, etc., regardless of the presence or absence of the bottom portion of the outer frame and the presence or absence of the opening portion on the bottom portion.

The material of the underlay sheet 50 can be appropriately selected and used from the materials exemplified above as the non-metallic sheet for the outer frame.
Further, as illustrated in FIG. 2, in the case of the outer frame 20B in which the bottom 21 is punched to form the opening 21a, the punched piece can be used as an underlay sheet.

  Moreover, as shown in FIG. 5, it is preferable that the disposable container further includes an annular flange member 40A that fits on the outer periphery of the peripheral wall portion 22 of the outer frame 20A. The inner periphery of the flange member 40A in the illustrated example is larger than the outer periphery of the bottom portion 21 of the outer frame 20A and smaller than the outer periphery of the upper end 22a of the peripheral wall portion 22 of the outer frame 20A. By using such a collar member 40A and fitting it into the outer frame 20A, the shape of the outer frame 20A can be maintained even if the gathering cup disposed on the inner side tends to spread due to the contents.

  Thus, in the disposable container provided with the collar member 40A, a locking portion for locking the collar member 40A is formed on the peripheral wall portion 22 of the outer frame 20A so that the collar member 40A does not slide down. preferable. Specifically, as shown in FIG. 5B, in the peripheral wall portion 22, a linear slit 23 along the circumferential direction is formed as a locking portion, and the inner peripheral side of the flange member 40A is hooked on the slit 23, The form which latches is mentioned. The slit 23 may be a wide opening or a simple cut. Alternatively, an incision such as an inverted U-shape is made in the peripheral wall portion of the outer frame, and a portion surrounded by the incision is tilted outward to form a support piece (locking portion), and the eaves member 40A is placed on the support piece You may be made to do. Such locking portions are preferably formed at equal intervals at three locations in terms of locking stability, but may be at least two locations.

Or as shown in FIG. 6, you may employ | adopt what has the hook-shaped hook part 41 latched to the upper end 22a of the surrounding wall part 22 of 20 A of outer frames as the collar member 40B. The hook 41 extends from the inner periphery of the flange member 40B and can be bent so as to be hooked on the upper end 22a of the peripheral wall 22 of the outer frame 20A. The hook portion may be formed extending from the outer periphery of the flange member. In addition, it is preferable in terms of locking stability that the hooking portions are formed at three equal intervals as shown in the figure, but it is sufficient if there are two or more hooking portions.
The material of the flange members 40A and 40B can be appropriately selected from the materials exemplified above as the non-metallic sheet for the outer frame.

  The shapes of the gathering cup and the cylindrical main body of the outer frame are not limited to those having a circular bottom and a constant peripheral wall. For example, as a gathering cup, a gathering cup 30D having a polygonal (quadrangle in this example) bottom 31 as shown in FIG. 7 or a gathering cup 30E having a constant peripheral wall height as shown in FIG. It may be. That is, in the present invention, the gathering cup includes a bottom portion by press molding a non-metallic sheet, and a peripheral wall portion that is erected from an edge portion of the bottom portion and is gradually expanded in diameter by forming a ridge. There is no limitation on the shape of the bottom, the height of the peripheral wall, and the like. Further, as shown in the example of FIG. 7, the peripheral wall portion ridges may be partially formed at positions corresponding to the corners (four corners) of the bottom portion 31 and the peripheral wall portion 32 may be tapered. It does not have to be formed uniformly around the circumference.

Also, as an outer frame combined with this, it is molded by press molding, and preferably is molded by press molding using the same mold as that used for forming the gathering cup, and has the same shape, bottomless or bottomed. What is necessary is just to have a cylindrical main body.
In the disposable container provided with the gathering cups 30D and 30E as shown in FIGS. 7 and 8, the outer frame is provided with a handle, and the gathering cup is provided with a latching opening for latching the handle. May be. Furthermore, a step part may be formed in the gathering cup and the outer frame, and these configurations can be freely combined.

The degree of taper of the cylindrical body of the outer frame and the gathering cup can be set as appropriate. However, from the viewpoint of ease of use as a container and shape retention of the gathering cup, the angle (taper degree) of the peripheral wall with respect to the horizontal direction is The range of 80 to 10 degrees is preferable, and 70 to 45 degrees is more preferable.
In addition, the taper degree of the surrounding wall part of a gathering cup can be adjusted with the number of the gathers formed.

Although there is no restriction | limiting in particular in the use of the disposable container demonstrated above, It uses suitably especially for foodstuffs, such as a heating of a foodstuff and cooking.
The food to be heated and cooked is not particularly limited, and examples thereof include pot dishes such as oden, casserole, cheese fondue, chocolate fondue, oil fondue, curry, stew and the like.
A disposable container is mounted on heating means, such as a hot plate and a frying pan, and is used for heating and cooking, for example. In addition, since it is suitable for use in this disposable container and microwave oven, it can be used for various usage methods such as preheating in a microwave oven and then moving on a hot plate, and there is no limitation on the usage method. .

A disposable container distribute | circulates with the form of the food in a container provided with the disposable container alone or the disposable container and the foodstuff which entered this disposable container.
In particular, in the form of food in a container, as food, for example, cheese used for cheese fondue, chocolate used for chocolate fondue, etc., it is in a solid state at room temperature (20 ± 15 ° C.) and is in a fluid state by heating. Is preferably employed.
In addition, in the case of food in a container in which food is combined with a disposable container having an underlay sheet, after the food is put in the gathering cup during distribution, the underlay sheet is used as a lid in the gathering cup. By placing and packaging on food, the gathering cup can be prevented from being crushed and deformed during distribution.

The size of the disposable container is not particularly limited, but when used for food, for example, the outer frame 20A, 20B, 20C having a circular cross-sectional shape as the size of the cylindrical main body of the outer frame. The diameter of the lower end 20b is preferably 5.0 to 21.0 cm, more preferably 7.0 to 18.0 cm, and the length from the upper end 20a to the lower end 20b is preferably 1.5 to 8.0 cm. More preferably, it is 4.0-6.0 cm. Moreover, the suitable taper degree of a surrounding wall part is as having mentioned above. Moreover, the diameter of the bottom part 31 of the gathering cups 30A and 30C combined with this is comparable to the diameter of the lower end 20b of the cylindrical main body of the outer frame. Further, the length from the upper end 32a of the gathering cups 30A, 30C to the edge of the bottom 31 may be approximately the same as the length from the upper end 20a to the lower end 20b of the outer frames 20A, 20B, 20C. Can be set as appropriate.
Further, as the outer frame combined with the rectangular gathering cup 30D as shown in FIG. 7, the maximum radial length at the lower end (the length corresponding to the diagonal line in this example) is preferably 5. It is 0 to 21.0 cm, more preferably 7.0 to 18.0 cm, and other suitable sizes and the like are the same as the ranges described in the case of the outer frames 20A, 20B, and 20C having a circular cross section. It is.
Moreover, it is preferable that the underlay sheet has a size and shape that allows the entire lower end of the outer frame to be placed.

10A Disposable container 20A, 20B, 20C Outer frame 24 Handle 30A, 30C, 30D, 30E Gathering cup 33 Locking opening 40A, 40B Ling member 50 Sheet for underlay

Claims (12)

An inner container and an outer frame for holding the inner container;
The inner container and the outer frame are separate bodies,
The inner container is a bottomed gathering cup formed by press molding of a non-metallic sheet and having a flange on the peripheral wall portion, and the outer frame is a non-metallic sheet having a larger thickness than the non-metallic sheet. A disposable container having a bottomed or bottomless cylindrical main body formed by press molding and having a flange on a peripheral wall portion. The disposable container according to claim 1, comprising a plurality of inner containers and one outer frame that holds the plurality of inner containers. The disposable container according to claim 1 or 2 , wherein the cylindrical main body has a bottom, and an opening is formed in the bottom. The said outer frame has a handle connected to the said cylindrical main body, The disposable container as described in any one of Claims 1-3 characterized by the above-mentioned. The disposable container according to claim 4 , wherein a locking opening for locking to the handle is formed in a peripheral wall portion of the gathering cup. The disposable container according to any one of claims 1 to 5 , further comprising an annular flange member fitted to an outer periphery of the peripheral wall portion of the outer frame. The disposable container according to claim 6 , wherein a locking portion for locking the flange member is formed on the peripheral wall portion of the outer frame. The disposable container according to claim 6 , wherein a hook portion that is engaged with an upper end of the peripheral wall portion of the outer frame is formed on the collar member. The disposable container according to any one of claims 1 to 8 , further comprising an underlay sheet on which the gathering cup is placed. It is a manufacturing method of the disposable container according to any one of claims 1 to 9 ,
A method for manufacturing a disposable container, comprising a step of press-molding a non-metallic sheet for forming the inner container and a non-metallic sheet for forming the cylindrical main body. In the step, a plurality of non-metallic sheets for forming the inner container are stacked on one non-metallic sheet for forming the cylindrical main body and press-molded. The manufacturing method of the disposable container of 10. A food in a container comprising the disposable container according to any one of claims 1 to 9 and the food in the disposable container.

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