JPH0628467Y2 - Packaging containers for pizza, etc. - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a packaging container for pizza and the like. More specifically, the invention relates to a packaging container for pizza, etc. Regarding packaging containers.

<Prior art and problems to be solved by the invention> Recently, in addition to the take-out commercial method that you try to bring home and eat after buying pizza or okonomiyaki,
Home delivery services to a certain area are actively performed. By the way, it is delicious to eat pizza and okonomiyaki while it is hot, and half the deliciousness if you eat it after cooling.

Conventionally, as a packaging container for pizza or the like provided in this way,
There is provided a synthetic resin sheet having excellent moldability, and generally, the container bottom is formed in a flat toilet shape so that the pizza or the like can be stored while being stretched horizontally without being bent.

However, since the packaging container having such a structure has a limit to the heat retention property of the container, if the pizza or the like cannot be eaten immediately after the purchase, or the outside air is considerably cold, the pizza or the like can be stored for a sufficiently long time. It cannot be stored warm. Further, after the pizza or the like is stored in a hermetically sealed state, dew condensation may occur in the container as the pizza or the like cools, and dew condensation water may adhere to the pizza or the like to reduce its commercial value.

Therefore, it is an object of the present invention to provide a packaging container for pizza or the like that can keep pizza or the like warm for a sufficiently long time and that does not wet the pizza or the like due to dew condensation water generated in the container.

<Means for Solving the Problems> As a structure of a packaging container for pizza or the like for achieving the object of the above invention, a nonwoven fabric sheet is provided in a container body made of a synthetic resin sheet and bonded in a substantially suspended manner, A step portion is formed on the bottom of the main body so as to enclose a predetermined range in the center of the container, and the portion surrounded by the step portion is covered with a part of the non-woven fabric sheet which is suspended. Is formed as a storage portion for the heat-generating heat insulation device,
In addition to the above-mentioned configuration, as a configuration relating to the combination of the container body of the packaging container and the lid portion, the lid portion is also made of a synthetic resin sheet, and a nonwoven fabric sheet is lined inside the lid portion.

<Operation> According to the first packaging container, since the heat-generating heat insulating tool is stored in the storage part of the heat-generating heat insulating tool formed in the container body, pizza etc. can be stored thereon. This exothermic heat retaining device can forcibly heat pizza and the like. Further, since it is possible to place pizza or the like on the non-woven fabric sheet joined in a substantially air-suspended manner inside the container body, it is possible to prevent direct contact with the inner surface of the container where dew condensation has occurred, and for dew condensation water It can be surely absorbed by the sheet.

According to the second packaging container, in addition to the function of the first packaging container, moisture due to dew condensation on the inner surface of the lid portion can be absorbed by the nonwoven fabric sheet lined in the lid portion.

<Examples> Hereinafter, detailed description will be given with reference to the accompanying drawings illustrating examples.
FIG. 1 is a sectional view of a container body and a lid portion showing a packaging container for pizza and the like according to the present invention.

In FIG. 1, a packaging container (A) for pizza or the like (hereinafter referred to as a packaging container) is composed of a container body (1) which is entirely made of a synthetic resin sheet excellent in shape retention and a lid portion (10). , Each of which is formed into a circular tray shape that can be fitted to each other. The container body (1) and the lid portion (10) may be foamed or non-foamed sheets, but foamed sheets such as expanded polystyrene sheets having excellent heat insulating properties and cushioning properties are preferable.

Inside the container body (1), a nonwoven fabric sheet (2) is provided so as to be joined in a substantially air-suspended manner. The non-woven sheet (2) is adhered from the upper end of the side wall (1a) of the container body (1) up to about 2/3, and then joined by providing a predetermined space from the bottom (1b) of the container body (1). Has been done. The nonwoven fabric sheet (2) may be adhered only to the upper end of the side wall (1a) and joined in a completely suspended state.

On the other hand, on the bottom part (1b) of the container body (1), as can be seen from FIG. 3, four step parts (3) of a predetermined height bulged from the back surface of the bottom part (1b) to the front surface side are formed. It is provided. Each step (3)
As shown in FIG. 2, it is provided in a substantially L-shape when viewed from above, encloses a predetermined range in the central part of the container body (1) in a substantially rectangular shape, and A space (b) (see FIG. 3) surrounded by a stepped portion (3) is formed in 1b), and a space of a storage portion (c) described later that can store the heat-generating heat insulation tool (20) is provided. It is arranged so that it can be secured.

Then, in the container body (1), a part (b) surrounded by the stepped portion (3) is covered with a part of the non-woven fabric sheet (2) in a suspended state, and the heat-generating heat retaining tool (20) is accommodated. An accommodating portion (c) for forming is formed (see FIG. 3). Storage (c)
As a part of the non-woven sheet (2), the non-woven sheet (2) is recessed without being joined to the step portion (3) and is framed in a substantially rectangular shape by the step portions (3). Regarding the looseness of the non-woven sheet (2), as can be seen from FIG. 4, the heat-generating heat retaining tool (20) housed in the housing section (c) partially cuts the non-woven sheet (2) into the above-mentioned part (b). Since the non-woven fabric sheet (2) is pushed inward and the other portion of the non-woven fabric sheet (2) is pulled, it is preferable to set so that the pizza etc. (30) can be supported horizontally in cooperation with the stepped portion (3). The non-woven sheet (2) is preferably a flexible sheet containing polypropylene fibers or viscose rayon fibers and having a density of about 30 g / cm ³ or more, from the viewpoint of air permeability and water absorption.

The height of the stepped portion (3) is such that the heat-generating heat insulating tool (20) housed in the storage part (c) does not protrude from the storage part (c) and push up the pizza etc. (30) from below to deform it. In addition, the heat-generating heat insulation tool (20) is provided at a height that does not extend upward from the inside of the storage section (c).

In addition, as shown in FIG. 3, between the adjacent steps (3) and (3),
A gap (a) is formed, and a vertical groove (4) is formed on the inner surface of the side wall (1a) from the upper end to the bottom (1b). The gap (a) is an air introduction part for supplying fresh air to the part (b) surrounded by the step (3). Flute (4)
Is formed by denting the inner surface of the side wall (1a) and bulging ribs on the outer surface, forming a gap between the side wall (1a) and the nonwoven fabric sheet (2), a) to step (3)
The fresh air supplied to the portion (b) surrounded by is taken in from the outside. According to this, fresh outside air is introduced from the vertical groove (4) through the gap (a) into the portion (b) surrounded by the step (3), passes through the non-woven sheet (2), and pizza, etc. It is supplied to the heat-generating heat retaining tool (20) in the storage portion (c) whose upper part is blocked by (30) to maintain the heat generation of the heat-generating heat retaining tool (20). The position of the vertical groove (4) may be formed at a position that matches the gap (a).

On the other hand, on the inner surface of the lid portion (10), as shown in FIG. 1, the same nonwoven fabric sheet (2) provided inside the container body (1) is used.
Is lined. As the non-woven sheet (2), the lid
It may be closely adhered to the inner surface of (10), or a part thereof may be joined at a constant interval. The non-woven sheet (2) absorbs the condensed water so that the pizza (30) does not get wet with the condensed water formed on the inner surface of the lid (10).
The nonwoven fabric sheet (2) provided inside the container body (1) also has the same function.

As the exothermic heat retaining device (20), for example, a commercially available so-called disposable body warmer is used, but in addition to this, use of a reusable reheater [manufactured by Sekisui Plastics Co., Ltd.] is convenient. As a disposable body warmer, an exothermic composition consisting of iron powder and an oxidization aid, or a water retaining agent such as water and activated carbon added to these substances, a heat generating composition consisting of granular caustic soda and a water retaining agent such as calcium carbonate is aerated. It is known that the air-permeable inner bag is housed in an air-tight bag which is made of a resin film, a coating film, a metal foil or the like having an air blocking property. As a reheater, a heat-resistant bag-shaped body containing a supercoolable solution that generates heat when crystallized, such as an aqueous solution of sodium acetate, and crystallization that activates the solution in the bag-shaped body for crystallization Starter (trigger)
There is one consisting of.

As can be seen from FIG. 4, the packaging container for pizza or the like having the above-mentioned structure is made of a synthetic resin sheet (1).
After accommodating the heat-generating heat insulation tool (20) in the storage part (c) formed inside, the pizza etc. (30) can be horizontally accommodated thereon, so that the heat-generating heat insulation tool (20) can be used to store the pizza. Etc. (30) can be heated globally and forcibly. Also, since the pizza etc. (30) can be placed on the non-woven sheet (2) joined in a substantially air-suspended manner inside the container body (1), direct contact with the inner surface of the container where dew condensation has occurred is prevented. Condensation water can be reliably absorbed by the nonwoven fabric sheet (2) supporting the pizza (30) and the like. In addition, for water due to dew condensation on the inner surface of the lid (10),
It can be absorbed by the nonwoven sheet (2) lined with (10).

FIG. 5 shows a modified example of the packaging container for pizza and the like according to the present invention. In this modified example, the heat-generating heat insulating tool (20) housed in the housing section (c) is too loose due to the non-woven sheet (2),
Step not to fall to the bottom (1b) of the container body (1)
A projecting portion (5) for supporting the heat-generating heat retaining tool (20) is provided in the central portion of the portion (b) surrounded by (3). According to this, the heat-generating heat insulation tool (20) can be accommodated in the storage part (c) while being surely floated, and the heat-generating heat insulation tool (20) can be accommodated.
It is possible to hold the contact surface with the air without reducing it.

Regarding the non-woven fabric sheet (2), a part thereof is
Step (3) by means of heat fusion or joining means using adhesive, etc.
You may provide so that it may be joined to. In this case, the non-woven sheet (2) is stepped from the side wall (1a) so that the non-woven sheet (2) can support the pizza (30) horizontally by cooperating with the step (3). ) It is preferable to tension and join. As a result, the movement of the non-woven sheet (2) in the vicinity of the step (3) is restricted, and it is possible to prevent the stored pizza etc. (30) from moving and to accompany the movement of the pizza etc. (30). Non-woven sheet
The pizza etc. (30) can be stored with good stability without causing local laceration of (2). In addition to this, the stepped portion (3) is formed separately from the container body (1) and is joined to the container body (1) by means such as adhesion, or the shape of the container body (1) is stored. Depending on the shape of the pizza, the pizza can be implemented in a rectangular shape or another shape, and various design changes can be made without departing from the scope of the invention.

<Effects of the Invention> According to the packaging container for pizza and the like according to the present invention, the heat-generating heat insulating tool can be housed in the storage portion formed inside the container body, and the pizza or the like can be stored thereon. Since the pizza or the like can be forcibly heated by the sex heat-retaining tool, the pizza or the like can be kept warm for a sufficiently long time and the deterioration of taste due to coldness can be prevented. In addition, pizza etc. can be placed on a non-woven sheet excellent in air permeability and water permeability that is joined in a substantially air-suspended manner inside the container body, so direct contact of pizza etc. to the inner surface of the container with dew condensation is prevented Condensation water can be absorbed by the nonwoven fabric sheet. Therefore, even if dew condensation occurs in the container, the pizza or the like can be carried without being wet with the dew condensation water, and a decrease in the commercial value of the pizza or the like can be prevented.
In addition, regarding moisture due to dew condensation on the inner surface of the lid,
Since it can be absorbed by the non-woven fabric sheet lined in the lid portion, the pizza and the like can be protected from the condensed water even on the lid portion side.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a container body and a lid showing a packaging container for pizza and the like according to the present invention, FIG. 2 is a plan view of the container body accommodating an exothermic heat retaining device, and FIG. 3 is a perspective view of the container body. FIG. 4 is a sectional view showing a usage state, and FIG. 5 is a sectional view showing another embodiment. (1) …… Container body, (2) …… Nonwoven sheet, (3) …… Step, (10) …… Lid, (A) …… Packing container, (b) …… Enclosed by step Opened part, (c) ... Storage part.

Claims (2)

[Scope of utility model registration request] 1. A non-woven fabric sheet is provided inside a container body made of a synthetic resin sheet so as to be substantially suspended, and a step part surrounding a predetermined range in the center of the container is formed on the bottom part of the container body, and the step part is formed. The portion surrounded by is covered with a part of the non-woven fabric sheet that is suspended in air, and the covered portion is formed as a storage portion for the heat-generating heat insulation tool, which is a packaging container for pizza or the like. . 2. A container main body made of a synthetic resin sheet and a lid. A non-woven fabric sheet is provided inside the container main body so as to be bonded in a substantially suspended manner, and a bottom of the container main body encloses a predetermined range in the center of the container. The portion surrounded by the stepped portion is covered with a part of the non-woven fabric sheet that is suspended in air, and the covered portion is formed as a storage portion for the heat-generating heat retaining tool. On the other hand, a packaging container for pizza or the like, characterized in that a non-woven fabric sheet is lined inside the lid.