JP3194779U - Lunch box - Google Patents

Abstract

[PROBLEMS] To provide a lunch box capable of minimizing the cost increase while effectively utilizing the advantages (breathability, bactericidal action, incense, etc.) of wood. SOLUTION: A side frame 11, a bottom plate 12 integrally attached to the lower surface side of the side frame 11, and a lid plate 20 that is detachably covered on the upper surface side of the side frame 11, are cooked inside. In the lunch box 1 in which food is stored, any one specific member (preferably the bottom plate 12) of the side frame 11, the bottom plate 12, and the lid plate 20 is a single piece of wood called cedar, straw or warp wood, The other member is a synthetic resin material. [Selection] Figure 1

Description

  The present invention relates to a lunch box (food container) for storing cooked foods such as rice and side dishes represented by ekiben.

  One type of lunch box of this type is a folding box made of wood such as cedar and straw. Wooden folding boxes have moderate breathability, hygroscopicity, and bactericidal action (inhibition of miscellaneous bacteria growth), so they have a particularly good freshness, such as rice and red rice. Is preferred by.

  However, wooden folding boxes tend to be shunned because they tend to warp wood and are not easy to assemble and due to high material costs. Synthetic resin food containers are the mainstream.

  Synthetic resin food containers are easy to assemble and can be manufactured on an automated machine, and the material cost is low, but they are not breathable or hygroscopic, so they are stored in comparison with wooden folding boxes. The food to be used (especially rice and red rice) is not very good. Nor does it smell the wood.

  In this regard, Patent Document 1 discloses a food container as a lunch box in which wood is attached to the inner surface of the side frame of a box made of a plate material such as polystyrene foam so as to take advantage of the wood. Proposed.

  According to this, although the bactericidal action by wood and its scent are obtained, since the side frame itself is a synthetic resin material such as styrene foam, the air permeability is not improved. Moreover, even if it is a product cost, the material cost of the wood to stick will increase excessively.

Utility model registration No. 3143291

  Therefore, the subject of this invention is providing the lunch box which enabled it to suppress cost increase to the minimum, utilizing the advantage of wood effectively.

  In order to solve the above problems, the present invention includes a side frame, a bottom plate integrally attached to the lower surface side of the side frame, and a lid plate that is detachably covered on the upper surface side of the side frame, In the lunch box in which the cooked food is stored, any one specific member of the side frame, the bottom plate, and the lid plate is made of a single piece of wood, and the other member is made of a synthetic resin material. Yes.

  As described above, the specific member made of a single piece of wood may be the side frame or the lid plate, but in the lunch box for storing rice or red rice, it is preferably the bottom plate.

  According to the present invention, some specific members of the lunch box constituted by the side frame, the bottom plate, and the lid plate, in particular, the wood has the bottom plate as a single piece of wood and the other members as synthetic resin materials. Due to moderate air permeability, hygroscopicity, and bactericidal action (inhibition of miscellaneous bacteria growth), food can be kept longer with good preservation (especially rice and red rice).

  In the lunch box, the bottom plate may be a flat plate that does not require bending, and since the contact area with food is large, in the present invention, the bottom plate is preferably made of wood. Moreover, even if it costs, since it replaces with the synthetic resin material used for a specific member and a timber is used, the cost increase only by the difference will suffice.

The perspective view which shows the lunch box which concerns on embodiment of this invention in the state which opened the lid | cover. Sectional drawing in the state which opened the lid | cover of the said lunch box.

  Next, an embodiment of the present invention will be described with reference to FIGS. 1 and 2, but the present invention is not limited to this.

  As shown in FIGS. 1 and 2, the lunch box 1 according to this embodiment includes a box body 10 having an open upper surface, and a lid body 20 that is detachably covered on the upper surface opening of the box body 10. Yes.

  The box body 10 includes an annular side frame 11 formed by integrally joining both ends of a strip having a predetermined width, and a bottom plate 12 integrally attached to the lower surface side of the side frame 11.

  In this embodiment, the side frame 11 is formed in a quadrilateral shape, but may be formed in an arbitrary shape such as a polygonal shape such as a triangle or a pentagon, or a circular shape including an ellipse. In accordance with this, the bottom plate 12 is formed in the same shape as the side frame 11.

  In the lunch box 1 according to this embodiment, the side frame 11 and the lid body 20 are made of a plate material such as a polystyrene foam resin, whereas the bottom plate 12 is made of wood. As this timber, cedar, straw, red pine, and wood generally called a warp are used. In this example, the bottom plate 12 is a warp.

  Further, the thickness of the wood (bottom plate 12) is not easily deformed at the time of assembly, and after assembly, it may be about 1.2 to 2 mm so as to sufficiently withstand the weight of the food to be stored. In this embodiment, it is preferably 1.5 mm.

  If it is less than 1.2 mm, it is easy to be deformed and difficult to assemble, and there is a risk of bottoming out when food is put in due to insufficient strength. On the other hand, if the thickness exceeds 2 mm, the thickness is excessive, which increases the material cost and the weight.

  In attaching the bottom plate 12, in this embodiment, as shown in FIG. 2, the groove 11a is formed over the entire circumference of the inner surface on the lower surface side of the side frame 11, and the peripheral portion 12a of the bottom plate 12 is fitted into the groove 11a. The so-called raised bottom type.

  The side frame 11 made of a synthetic resin material and the outer surface of the lid 20 may be decorated by printing or a decorative sheet.

  Further, although not shown, a partition plate for separately storing food in the box body 10 may be provided. The partition plate may be made of either synthetic resin or wood, but is preferably made of wood in the same manner as the bottom plate 12.

  According to the lunch box 1 according to this embodiment, the bottom plate 12 is preferably made of natural wood such as cedar, firewood, red pine, etc., so that the natural wood has appropriate air permeability, hygroscopicity, and bactericidal action. It has good properties and can make food (especially rice and red rice) last longer. In addition, a faint scent of wood is produced.

  Unlike the above embodiment, only the side frame 11 is made of wood, the bottom plate 12 and the cover plate 20 are made of synthetic resin, and only the cover plate 20 is made of wood, and the box body of the side frame 11 and the bottom plate 12 An embodiment in which 10 is made of a synthetic resin is also included in the present invention.

1 Lunch Box 10 Box Body 11 Side Frame 12 Bottom Plate 20 Lid Plate

Claims (2)

A lunch box that includes a side frame, a bottom plate that is integrally attached to the lower surface side of the side frame, and a lid plate that is detachably covered on the upper surface side of the side frame, and that contains cooked food inside. In
The lunch box, wherein any one of the side frame, the bottom plate, and the cover plate is made of a single piece of wood, and the other member is made of a synthetic resin material.   The lunch box according to claim 1, wherein the specific member is the bottom plate.

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