JP3895761B1 - Lunch box - Google Patents

Abstract

【Task】
In the prior art, the structure of many uneven projections and many spatulas attached to prevent misalignment of the rice in the lunch box is complicated. As a result, it is difficult for users to use, expensive, and difficult to wash.
[Solution]
In the lunch box provided with the lid 2 and the container main body 1, when the lid 2 is closed to the upper surface opening of the container main body 1, a pressing portion 3 that holds the contents M in the container main body from above is provided on the back surface 4 of the lid. The vertical cross-sectional shape of the pressing portion 3 is characterized in that it smoothly swells toward the container main body as it goes from the edge of the lid toward the center. This eliminates the misalignment of rice, makes the structure simple, easy to wash and easy to use.
[Selection] Figure 1

Description

  The present invention relates to a lunch box that can reduce the shift of contents such as rice by carrying.

The conventional lunch box has the disadvantage that the rice in the box tends to move away when carried in a bag when going to school. As an improvement of this drawback, there are conventionally known techniques in Patent Document 1 and Patent Document 2. However, the lunch box of Patent Document 1 has a structure in which a large number of uneven projection partitions are provided inside the lunch box main body, and has a problem that the structure is complicated and difficult to wash and difficult to eat. Moreover, in the lunch box of patent document 2, since the rice fixing device comprised from what attached many spatulas to the plastic shaft is used, the number of parts of the lunch box is large, and the structure is complicated and difficult to wash. There was a problem.
JP2004-16777 JP-A-10-99120

As described above, Japanese Patent Application Laid-Open No. 2004-16777 and Japanese Patent Application Laid-Open No. 10-99120 have a complicated structure of protrusions and protrusions at a large number of places and a large number of spatulas attached to prevent misalignment of the rice in the lunch box. As a result, it is difficult for users to use, expensive, and difficult to wash. Therefore, it is an object of the present invention to improve the ease of use and the ease of washing with respect to the conventional lunch box that prevents the deviation, and to make it easy for users to use.

  According to the first aspect of the present invention, in the lunch box including the lid and the container main body, when the lid is closed on the upper surface opening of the container main body, a pressing portion for pressing the contents in the container main body from above is provided on the back surface of the lid. The vertical cross-sectional shape of the holding part is an arc shape that swells smoothly toward the container body as it goes from the edge of the lid toward the center so that the entire contents can be pressed tightly around the center part It is characterized by that.

According to the first aspect of the present invention, the pressing portion provided on the back surface of the lid has a raised central portion, and thus serves to particularly hold the contents (such as rice) in the central portion when the lid is closed. As a result, the central portion of the contents in the container body is compressed to increase the density, and the outer rice is not brought to the center. In addition, since the pressing portion swells smoothly from the edge of the lid toward the center portion, the entire contents are pressed tightly at the central portion and the peripheral portion is roughly pressed to suppress the overall displacement. This eliminates misalignment of the contents such as rice, and the structure is very simple, easy to wash and easy to eat.

  The invention according to claim 2 is characterized in that in the lunch box according to claim 1, the pressing portion provided on the back surface of the lid has a hollow structure so that the accessories of the lunch box can be stored. It is.

  From the above description, the present invention prevents the contents in the lunch box from being displaced, has a very simple structure, is easy for the user to use, and is easy to wash.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The lunch box container of FIG. 1 is composed of a container body 1 that holds rice and the like, and a lid 2, and a protrusion-shaped pressing portion 3 is provided on the back surface 4 of the lid 2. That is, the lunch box shown in FIG. 1 is a lunch box having a lid 2 and a container body 1, and when the lid 2 is closed to the upper surface opening 1 a of the container body 1, the contents M in the container body 1 are pressed from above. Protruding presser 3 is provided on the back surface 4 of the lid 2, and the vertical cross-sectional shape of the presser 3 is swelled smoothly toward the container body 1 side from the edge of the back 4 of the lid 2 toward the center. It is characterized by that.

  FIG. 2 is a view of the lunch box of FIG. 1 as viewed from above. When viewed from above, it can be seen that the substantially circular presser portion 3 indicated by a dotted line is arranged at a large ratio with respect to the surface area of the lid 2. The pressing portion 3 may have a substantially square shape along the shape of the lid 2 in addition to a substantially circular shape as viewed from above. 3 to 4 show a state in which contents M such as rice are packed in the container body 1 and the lid 2 is closed from above. When viewed from the side, the pressing portion 3 on the back surface 4 of the lid 2 has a circular cross section, so that when the lid 2 is closed, the central portion of the contents M is compressed more than the surrounding portion. And the density of the outer portion becomes coarse. As a result, the contents on the outside do not approach the center, and the contents M will not be offset even if the lunch box is stood in the bag when going to school.

  FIG. 5 shows an example in which the lid 2 of the lunch box is turned upside down, and the protruding portion of the pressing portion 3 is shaped like a kamaboko.

  FIG. 6 shows a one-stage separation type lunch box in which a partition plate 5 is provided in the container body 1. The lunch box having the structure shown in FIG. 6 is divided into a plurality of partitions by the partition plate 5 in the container body 1 when the lid 2 is closed to the upper surface opening 1 a of the container body 1 in the lunch box having the lid 2 and the container body 1. A holding part 3 for holding one of the contents M formed from above is provided on a part of the back surface of the lid 2, and the vertical cross-sectional shape of the holding part 3 is increased from the edge of the back surface 4 of the lid 2 toward the center part. It is characterized by a shape that swells smoothly toward the main body. Note that the pressing portion 3 that presses each of the contents M partitioned into a plurality by the partition plate 5 may be divided into a plurality and provided on the back surface 4 of the lid 2.

  FIG. 7 shows an example of a lunch box separated into two stages in the vertical direction. The lunch box shown in FIG. 7 has a structure in which the upper surface opening of the container body 1 is closed by the inner lid 6, and the upper surface opening of the inner lid 6 is closed by the upper lid 7. A pressing portion 3 for pressing the contents in 1 from above is provided. In the illustrated example, the space in the inner lid 6 may be filled with contents, and in that case, a pressing portion may be provided on the back surface of the upper lid 7.

  FIG. 8 is an example in which the space portion 8 is provided in the shape of the protrusion of the pressing portion 3, and a storage lid 9 is provided that provides the space portion 8 from the upper surface of the lid 2 to the pressing portion 3 and closes the upper surface opening of the space portion 8. It is characterized in that the space portion 8 is used as a storage portion, and accessories for lunch boxes such as chopsticks and soy sauce can be stored.

  FIG. 9 is an example in which the shape of the pressing portion 3 from the edge of the back surface 4 of the lid 2 toward the center is an arch shape.

FIG. 10 shows an example in which the separation-type pressing portion 10 is fitted into the back surface 4 of the lid 2 and can be applied to the lid of a conventional lunch box.

The perspective view of the lunch box which shows one embodiment of the present invention The top view of the lunch box in Fig. 1 Sectional view of the container body and lid of the lunch box in FIG. Sectional view of the container body of FIG. 3 with the lid closed A view of the lid with the kamaboko-type holding part turned upside down Sectional view showing a single-stage lunch box Sectional view showing a two-stage separated lunch box Cross-sectional view of a lid provided with a space in the holding part and used as a storage part Cross-sectional view of a lid with a arch-shaped holding part Sectional view of the lid with a press-in part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lunch box container main body 2 Lid 3 Holding part 4 The back surface which touches rice 5 Partition plate 6 Middle cover 7 Upper cover 8 Lid space part 9 Storage lid 10 Separation type holding part

Claims (2)

  In a lunch box with a lid and a container body, when the lid is closed on the top opening of the container body, a holding part is provided on the back of the lid to hold the contents in the container body from above, and the vertical cross-sectional shape of the holding part is The lunch box is characterized by an arc shape that smoothly swells toward the container body as it goes from the edge of the lid toward the center so that the entire contents can be pressed tightly in the center and densely in the periphery. .   2. The lunch box according to claim 1, wherein a pressing portion provided on the back surface of the lid has a hollow structure so that accessories of the lunch box can be stored.

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