JP5346452B2 - Lunch box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lunch box capable of preventing mixture of a foreign substance by covering a valve part to discharge steam with a label and capable of discharging steam when the steam is generated inside a container body without interference of the label because a valve is securely opened. <P>SOLUTION: The lunch box includes the container body which can be heated in a microwave oven, and a lid to cover an opening of the container body in the sealed state. The lid of the lunch box includes a lid body to cover the opening of the container body, a recess formed in a part of the upper surface of the lid body, the valve formed of a notch formed in the recess for discharging steam generated inside the container body, a minute steam discharging groove formed in the peripheral edge of the recess, and the label pasted to the lid body. The outer circumference of the label is located in the vicinity of the outside end of the steam discharging groove, and the label can cover the recess and the steam discharging groove on the whole or leaving a part of the outer circumference of the groove. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a bento container for packaging lunch boxes, side dishes, and the like sold at supermarkets and convenience stores.

Conventionally, the lids of lunch containers sold at supermarkets, convenience stores, etc., form a valve with a U-shaped notch to remove steam generated when heated in a microwave oven, and foreign matter enters from the valve. In order to prevent this, a valve seal having both ends attached thereto is provided.

For this reason, there has been a drawback that it is necessary to attach a valve seal and a label, which is troublesome and costly.
In addition, since the valve seal with both ends adhered to the upper part of the U-shaped notch is used, if both ends of the U-shaped notch are pressed against the valve seal, the steam is difficult to escape. There was a drawback that it would.
nothing special

    In view of the conventional drawbacks as described above, the present invention covers the valve portion for removing steam with a label to prevent foreign matter from entering, and when steam is generated in the container body, the label is not disturbed, and the valve is reliably The object is to provide a lunch container that can be opened and discharged to the outside.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

In order to achieve the above object, the present invention provides a lunch box comprising a container body capable of heating in a microwave oven and a lid that covers the opening of the container body in a sealed state. The lid covers the opening of the container body. A lid body, a recess formed in a part of the upper surface of the lid body, a valve formed in the recess and a notch for venting steam generated in the container body, and a peripheral portion of the recess The lid that can be covered with a minute steam vent groove formed on the outer peripheral portion of the steam vent groove and an outer peripheral portion located in the vicinity of the outer end of the steam vent groove , leaving a part of the outer periphery of the recess and the steam vent groove. The label is affixed to the main body , and the label adheres to the adhesive surface of the label while passing through the vapor vent groove so as to prevent the intrusion from passing through the vapor vent groove. It constitutes a lunch box.

  As is clear from the above description, the present invention has the following effects.

(1) Since a valve formed by a notch is formed in a recess formed in a part of the upper surface of the lid body, the steam generated in the container body when heated in a microwave oven pushes the valve up into the recess. It can enter, pass through the minute steam vent from the concave portion, and be discharged to the outside.
Therefore, the valve can be reliably moved in the valve opening direction as compared with the conventional case where the valve and the valve seal are in surface contact.

(2) According to (1), the outer peripheral portion is positioned near the outer end of the minute steam vent groove, and the label is pasted while leaving a part of the outer peripheral portion of the minute steam vent groove. Steam can be reliably discharged from the inside of the recess.
In particular, according to the present invention, since the outer peripheral portion of the label having an adhesive layer is located in the vicinity of the outer end portion of the minute steam vent groove, insects entering from the minute steam vent groove can be prevented through the adhesive layer .

(3) According to the above (1), the concave portion where the valve is formed and the minute steam vent groove can be covered with the label, and it is not necessary to use the valve seal and the label as in the conventional case, and the handling is easy. Cost can be reduced.

(4) According to the above (1), it is only necessary to form a recess, a valve, and a minute steam vent on the lid, which can be easily manufactured.

(5) In claim 2, the same effects as in the above (1) to (4) can be obtained, and the internal volume can be effectively prevented from being reduced. Steam can be discharged to the outside more efficiently than a simple steam vent.

  Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

1 to FIG. 6, the lunch container 1 of the present inventor 1 is a lunch container of the present invention, and this lunch container 1 has a lid fitting recess 3 inside an opening end portion in which a lunch food 2 is stored. The formed circular container body 4 and the fitting part 5 fitted and fixed to the lid fitting recess 3 of the container body 4 are locked to the flat upper surface outer peripheral part made of a transparent material. A lid body 7 having a protruding ring 6, a part of the upper surface of the lid body 7, and a shallow dish-shaped rectangular recess 8 formed in a portion near the outer periphery in the embodiment of the present invention, A valve 10 formed with a U-shaped notch 9 on the bottom surface, and each piece formed on the lid body 7 at the peripheral edge of the recess 8 has a plurality of minute dimensions having a width dimension of 2 mm or less and a depth of 1 mm or less. An outer peripheral part is located in the vicinity of the outer side of the steam release groove 11 and the plurality of steam release grooves 11, and the recess 8 and the steam Is composed of a lid 13 comprising a valve seal serves label 12 that can cover all come grooves 11.

In the lunch container 1 having the above-described configuration, the lunch food 2 is stored in the container body 4, and the opening of the container body 4 is fitted to the fitting part 5 of the lid 13 and the lid fitting recess 3 of the container body 4. The inside of the container body 4 is in a sealed state.
In this state, when heated in a microwave oven, steam is generated from the lunch food 2 stored in the container body 4, and the generated steam pushes up the valve 10 to enter the recess 8, and a plurality of the steam enters from the recess 8. Since the outer end of the label 12 is in the vicinity of the outer ends of the plurality of minute steam vent grooves 11 by entering the minute steam vent groove 11 and increasing the pressure in the steam vent groove 11, The part label can be pushed up, and the steam release groove 11 can be opened and discharged to the outside.
Normally, a plurality of minute steam vents 11 are covered with the label 12, so that it is possible to surely prevent the entry of insects and the like, and the valve 10 is formed on the bottom surface of the recess 8. Can be moved to.
[Different forms for carrying out the invention]

  Next, different modes for carrying out the present invention shown in FIGS. 7 to 18 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

The first embodiment for carrying out the present invention shown in FIG. 7 to FIG. 9 is mainly different from the lunch box shown in FIG. 1 to FIG. 6 in that the outer end portions of a plurality of minute steam vents 11 are provided. The lunch box 1A configured using such a label 12A is the same as the lunch box shown in FIGS. 1 to 6 in that the label 12A that can be pasted while leaving a part of the label 12A is used . The effect is obtained.
Although the outer end portion of the minute steam vent groove 11 is opened, the minute steam vent groove 11 has a minute size. For example, even if a small insect enters and enters the recess 8, It can adhere to the adhesive surface (adhesive layer) 12a of the label 12A while passing through the minute vapor vent groove 11 to prevent its intrusion. That is, it is possible to capture the insect that is entering through the adhesive surface of the label 12A.

10 to 12 is different from the lunch container shown in FIGS. 1 to 6 in that the inventor conceived the present inventor bent the outer peripheral portion into an angle to form the lid fitting portion 14. A rectangular container body 4A and a lid 13A in which an angle-shaped fitting portion 15 that fits so as to cover the lid fitting portion 14 is formed on the outer periphery covering the opening of the container body 4A are used. In this respect, even with the lunch box 1B configured as described above, the same effect as the lunch box shown in FIGS. 1 to 6 can be obtained.

In the lunch container considered by the present inventor shown in FIGS. 13 to 15, the main difference from the lunch container shown in FIGS. 1 to 6 is that the outer peripheral portion is bent into an angle to form the lid fitting portion 14A. A lid main body 7A in which a circular container main body 4B and an angle fitting portion 15A that fits so as to cover the lid fitting portion 14A are formed on the outer peripheral portion covering the opening of the container main body 4B, and this lid The lunch box 1C configured in this way is the same as the lunch box shown in FIGS. 1 to 6 in that the lid 13B having a circular shallow dish-shaped recess 8A formed at the center of the main body 7A is used . The effect is obtained.

16 to 18 is different from the lunch container shown in FIGS. 13 to 15 in that the present invention has a relatively different structure in which minute steam vents 11 are formed on the outer periphery. A small circular shallow dish-shaped concave portion 8B is formed, and a label 16 covering the concave portion 8B is adhered to the concave portion 8B, and the surface of the lid 13B or the bottom surface of the container body 4, or the surface of the lid 13B in the embodiment of the present invention. Even with the lunch box 1D configured as described above, the same effect as the lunch box shown in FIGS. 13 to 15 can be obtained by attaching the product label 17.
In addition, although each form which implements this invention demonstrated what formed several steam venting groove | channels, you may form one steam venting groove | channel.

  INDUSTRIAL APPLICABILITY The present invention is used in the manufacturing industry for lunch containers used for lunch boxes sold at supermarkets and convenience stores.

The perspective view of the lunch container which this inventor considered . Sectional drawing which follows the 2-2 line of FIG. The perspective view of the container main body of the lunch container which this inventor considered . The perspective view of the lid | cover of the lunch container which this inventor considered . Sectional drawing which follows the 5-5 line of FIG. Explanatory drawing of the state from which the vapor | steam of the lunch box which the present inventor considered escapes. The perspective view of the 1st form for carrying out the present invention. Sectional drawing which follows the 8-8 line of FIG. The principal part expanded sectional view of the 1st form for implementing this invention. The perspective view of the lunch container which this inventor considered . Sectional drawing which follows the 11-11 line of FIG. The principal part expanded sectional view of the lunch container which this inventor considered . The perspective view of the lunch container which this inventor considered . Sectional drawing which follows the 14-14 line | wire of FIG. The principal part expanded sectional view of the lunch container which this inventor considered . The perspective view of the lunch container which this inventor considered . FIG. 17 is a sectional view taken along line 17-17 in FIG. 16; The principal part expanded sectional view of the lunch container which this inventor considered .

1, 1A, 1B, 1C, 1D: lunch box,
2: lunch food, 3: lid fitting recess,
4, 4A, 4B: container main body, 5: fitting part,
6: Locking projection ring 7, 7A: Lid body
8, 8A, 8B: recess, 9: notch,
10: valve, 11: minute steam vent,
12, 12A: label, 13, 13A, 13B: lid,
14, 14A: lid fitting portion, 15, 15A: fitting portion,
16: Label, 17: Product label.

Claims (2)

In a lunch box comprising a container body capable of heating in a microwave oven and a lid that covers the opening of the container body in a sealed state, the lid body covers the opening of the container body, and a top surface of the lid body. A recess formed in the recess, a valve formed by a notch for extracting steam generated in the container body formed in the recess, a minute steam vent formed in the peripheral edge of the recess, and The outer peripheral part is located in the vicinity of the outer end of the steam vent groove, and is composed of a label attached to the lid body that can cover the recess and leave a part of the outer peripheral part of the steam vent groove , The lunch container , wherein the label is adhered so that an insect entering from the steam vent groove is adhered to an adhesive surface of the label while passing through the steam vent groove and the intrusion can be prevented . The concave portion formed in a part of the upper surface of the lid body is formed in a shallow dish shape, and a plurality of minute steam vents are formed in the lid body at the peripheral edge of the concave portion. The lunch box according to claim 1.

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