JP2013100121A - Food container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily-unsealable food container.SOLUTION: In the food container, a body portion 1 for storing food and a cover 2 are connected via a hinge portion 3. An adhesive portion 5a is provided in part where the body portion 1 and the cover 2 are each connected, and A fragile portion 4a for separating a connection region including the adhesive portion 5a from other regions is formed in the body portion 1 and/or the cover 2. The food container A is provided which is unsealed by application of an outer force to the connection region 6a and breakage of the fragile portion 4a.

Description

  The present invention relates to a food container. More specifically, the present invention relates to a food container that can be easily opened.

  There are various materials for food containers, but food containers made of synthetic resin, among others, are lighter and less expensive than containers made of glass, metal, ceramics, etc., and have a certain strength. It is widely used as a container for storing foods and distributing and selling them. A food container made of a synthetic resin can be processed into a shape suitable for the properties and storage conditions of the food to be filled by using a processing technique such as molding.

  When transporting, selling, preserving food in a container, it is required that the container is securely sealed from the viewpoint of hygiene. On the other hand, when removing food from a food container There is a demand for easy opening.

  For example, in Patent Document 1, in a container in which a filling part and a lid part filled with a raw material are connected via a folded part, a joint portion between the filling part and the lid part formed at the time of sealing the container, There is disclosed a natto container in which a separation line for separation is provided in either the lid portion or the filling portion. The separation line is formed on each of the paired sides of the filling part or the lid part. When the separation line is broken, the lid part and the filling part are separated, and the natto container is opened. Is done.

  Further, in Patent Document 2, in a food container in which a filling portion for filling food and a lid portion are continuously provided via a hinge portion, a flange portion provided on the peripheral edge of the opening of the filling portion, or a hinge of the lid portion. The food container by which the cutting line for cutting off the area | region containing a junction part from a filling part or a cover part was formed in a part of the side facing a part is disclosed.

  In each of the above two containers, a cut line is provided at the adhesive portion between the filling portion and the lid portion formed on the container at the time of sealing by a cut line provided on either the lid portion or the filling portion. It is left unfilled or left on the lid or lid. For this reason, in the said container, the sealed container can be opened, without peeling off the adhesion part of a filling part and a cover part.

JP 2002-59990 A JP 2005-153981 A

  The main object of the present invention is to provide a food container that can be easily opened.

That is, this disclosure
A food container in which a body part for storing food and a lid part are connected via a hinge part, and an adhesive part is provided on a part of the surfaces of the body part and the lid part that are joined to each other, A fragile portion that separates the bonding region including the bonding portion from the other region is formed in the main body portion and / or the lid portion, and is opened by applying an external force to the bonding region to break the fragile portion. Provide food containers.
A food container in which the fragile portion is a broken line is suitable.
Further, the hinge portion is provided on one side of the four sides constituting the lid portion formed in a rectangular shape in plan view or a square shape in plan view, and the fragile portion is formed at corners at both ends of the side facing the hinge portion. Food containers are preferred.

  According to the present invention, a food container that can be easily opened by breaking a fragile portion is provided.

It is a perspective view which shows typically the structure of the food container A which concerns on the 1st Embodiment of this invention. It is a perspective view showing typically the composition of modification 1 of food container A. It is a perspective view which shows typically the structure of the deformation | transformation Embodiment 2 of the food container A. It is a perspective view which shows typically the structure of the food container B which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows typically the structure of the food container C which concerns on the 3rd Embodiment of this invention.

  Hereinafter, preferred embodiments for carrying out the present invention will be described. In addition, embodiment described below shows an example of typical embodiment of this invention, and, thereby, the range of this invention is not interpreted narrowly.

1. First Embodiment (1) Configuration of Food Container A The configuration of a food container A according to the first embodiment of the present invention will be described with reference to FIGS. These FIG. 1 (A) to (D) shows a series of shape changes until the food container A in an open state is sealed and opened again.

  First, as shown to FIG. 1 (A), the food container A is roughly comprised from the main-body part 1, the cover part 2, the hinge part 3, and the weak part 4a. The main body 1 and the lid 2 are connected via a hinge 3. Moreover, the two weak parts 4a and 4a are formed in the corner | angular parts 22 and 22 of the both ends of edge | side S2 facing the one side of the hinge part 3 side of the cover part 2. As shown in FIG.

  In the main body 1 of the food container A, a space E that can contain food is formed by the bottom surface 13 and the wall surface 14, and one surface that faces the bottom surface 13 is open upward. (Not shown) is accommodated (see FIG. 1A). On the outside of the opening 15, a main body outer peripheral edge (flange) 11 is provided around the opening 15 as shown in FIG. The “food” described in the present invention is not limited to food that has been cooked, but includes food raw materials before processing, foods in the middle of processing, and the like, and is not limited narrowly.

  The lid portion 2 of the food container A is configured to be folded to the main body portion 1 with the hinge portion 3 as a fold line portion, whereby the opening portion 15 of the main body portion 1 is sealed (FIG. 1B). ) Status). As shown in FIG. 1 (A), the lid 2 has a protrusion that is fitted into the opening 15 for the purpose of increasing the strength and retaining the lid 2 at a position suitable for sealing the opening 15. A frame 23 may be provided. In addition, a lid outer peripheral edge (flange) 21 that is joined to the main body outer peripheral edge 11 (flange) is provided on the outer periphery of the lid part 2.

  The material of the main body 1 and the lid 2 of the food container A is preferably a synthetic resin, for example, or may be a composite of a synthetic resin and a member of another material. As the synthetic resin, various thermoplastic resins such as polyethylene resin, polystyrene resin, polypropylene resin, and polyethylene terephthalate resin can be used. Among these resins, a material having elasticity is preferable for the reason described later, and a thermoplastic resin foam of a polystyrene resin or the like is preferable.

  A method for forming the main body 1 and the lid 2 is not particularly limited, and can be performed by a known method such as vacuum forming. When the main body 1, the lid 2, or the main body 1 and the lid 2 are formed of a composite material, for example, a plurality of types of synthetic resins are laminated, or a synthetic resin such as a sheet made of synthetic resin and paper You may use the material which combined the sheet | seat which consists of materials other than.

  The food container A shown in FIG. 1 is a square in plan view for both the main body 1 and the lid 2, but the shape of the food container A of the present embodiment can also be a rectangular shape in plan view, a polygon, etc. , Not limited. In addition, the main body 1 may be provided with irregularities (not shown) on the bottom surface 13, the wall surface 14, or the bottom surface 13 and the wall surface 14 for reinforcement, etc. An air hole (not shown) may be provided.

  The hinge part 3 of the food container A of the present embodiment has a structure formed integrally with the main body part 1 and the lid part 2, for example. In addition, when the main body 1 is sealed with the lid 2, the hinge 3 can be bent so that the entire protruding strip frame 23 of the lid 2 can surely enter the opening 15 of the main body 1. For example, as shown in FIG. 1, triangular grooves 31 and 31 may be extended on both sides thereof. Further, a break line (not shown) for facilitating the bending of the lid portion 2 may be formed in the triangular grooves 31 and 31. Employing the hinge configuration as described above facilitates the positioning of the lid portion 2 with respect to the main body portion 1 and facilitates bending, so that the sealing operation can be performed more easily. In addition, the structure which connects the main-body part 1 and the cover part 2 may be sufficient as the hinge part 3 in this invention formed separately from the main-body part 1 and the cover part 2. FIG.

  Next, the weak parts 4a and 4a will be described. As shown in FIG. 1 (B), the fragile portions 4a and 4a in the food container A are constituted by broken lines formed by straight lines connecting two sides forming the corner portions 22 and 22, respectively. The break line is formed by discontinuous cuts, and thus becomes a weaker part than the periphery thereof. Therefore, the break line is a part that can be easily separated by an external force. In addition, what is necessary is just to select suitably the width | variety of a break line, the depth, a space | interval, etc. according to the intensity | strength etc. of the material used for the food container A. FIG.

  Further, the configuration of the fragile portions 4a, 4a is not particularly limited to the breaking line, and may be formed so as to be easily broken or separated by making the thickness thinner than other portions of the lid portion 2. Any shape may be used. Further, the line configuration of the fragile portions 4a, 4a is not particularly limited to a linear shape, and may be formed by a plurality of straight lines, may be formed in a curved line, a linear part and a curved part. It may be comprised from these.

(2) About sealing (blocking) of food container A The sealing of the food container A will be described in more detail with reference to FIGS. 1 (A) and 1 (B). In the opened food container A shown in FIG. 1 (A), the lid portion 2 side is bent in the direction of arrow X with the hinge portion 3 as a fold line portion, thereby sealing the opening portion 15 of the main body portion 1. Is done. In order to maintain the sealed state of the opening 15, the pair of corners 22 and 22 formed at both ends of the side S <b> 2 of the lid 2 are bonded to the surfaces where the main body 1 and the lid 2 are joined. Portions 5a and 5a are formed (see FIG. 1B). In the food container A, the outer peripheral edge (flange) of the main body portion is formed on the main body portion 1 and the lid portion 2 so that the bonding portions 5a and 5a having a sufficient area to maintain the sealed state can be formed. 11 and the outer periphery (flange) 21 of a cover part are provided, and this point is the same in other embodiments described later.

  The adhesive portions 5a and 5a in the food container A can be formed by a known method such as heat fusion, adhesive, or bonding using a pressure sensitive adhesive sheet. Which method is adopted depends on the main body 1 and the lid. It can be appropriately selected depending on the material of the portion 2. Moreover, you may fix two corner | angular parts 22 and 22 of the cover part 2 of the food container A shown in FIG.1 (B) from the outer side of the food container A with another members, such as an adhesive tape. In addition, since heat sealing does not require an additional member or a solvent in order to seal the food container A, it is suitable. When a polystyrene-based thermoplastic foamed resin is used, thermal welding using ultrasonic waves is preferable. By sealing with the adhesive portions 5a and 5a described above, the sealed state can be reliably applied to the food container A in the course of distribution and sales until the food container A is opened.

(3) About opening of food container A Opening of the food container A is demonstrated referring FIG.1 (C) and (D). In opening the food container A in the sealed state, the fragile portion 4a is first broken. Specifically, when the fragile portions 4a and 4a are pushed down with a finger or the like in the direction indicated by arrows F1 and F1 in FIG. 1C, the fragile portions 4a and 4a are easily broken.

  The fragile portions 4a and 4a are formed at positions that separate the joining regions 6a and 6a of the main body 1 and the lid portion 2 including the bonding portions 5a and 5a from other regions. For this reason, when the fragile portions 4a and 4a are broken, the joining regions 6a and 6a formed at the corner portions 22 and 22 at both ends of the side S2 of the lid portion 2 are separated from the lid portion 2 while maintaining an adhesive state. . Then, when the joining regions 6a, 6a are separated from the lid portion 2, the lid portion 2 that has lost the adhesion portion with the main body portion 1 is lifted and developed in the direction indicated by the arrow Y shown in FIG. Thus, the food container A is opened. Thus, food container A of this embodiment can be opened easily by breaking weak parts 4a and 4a.

  When the food container A is made of an elastic material such as a polystyrene resin thermoplastic resin foam and the main body 1 and the lid 2 are integrally molded with the hinge 3, the lid 2 When the fragile portions 4a, 4a are broken and the joining regions 6a, 6a are separated from the lid portion 2, the adhesive portion with the main body portion 1 is lost, and the restoring force that tries to return to the shape at the time of molding automatically Lift up in the direction of arrow Y and open.

  In the conventional container, the operation of separating the lid portion 2 itself from the main body portion 1 and opening it is performed by using a fingertip (narrow gap between the outer peripheral edge (flange) 11 and 21 of the main body portion 1 and the lid portion 2 in a joined state. It is a very troublesome work to be performed by inserting a claw), etc., but according to the breaking work of the weakened parts 4a, 4a as in this embodiment, the unsealed food container A is more easily opened. There is an advantage that you can. Note that this important advantage is the same in other embodiments.

(4) Modified embodiment 1 of food container A
As a modified embodiment 1 of the food container A of the present embodiment, a food container A1 in which the fragile portions 4a and 4a are formed on the main body 1 side is shown in FIG. 2A to 2D show a series of changes in shape until the opened food container A1 is sealed and opened again, as in FIG.

  In the food container A1 shown in FIG. 2 (A), the fragile portions 4a and 4a are formed at the corner portions 12 and 12 at both ends of the side S1 opposite to one side of the main body portion 1 on the hinge portion 3 side. Regarding the configuration other than the formation positions of the fragile portions 4a, 4a, the food container A1 is the same as the food container A shown in FIG. 1, and the details thereof are as described above.

  As in the case of the food container A, the lid 2 side of the food container A1 in the opened state is bent in the direction of the arrow X with the hinge part 3 as the fold line part, whereby the opening part 15 of the main body part 1 is sealed. It is stopped (FIG. 2 (A)). In order to maintain the sealing state of the opening 15, the bonding portion 5 a is attached to the joint surface between the main body 1 and the lid 2 at the pair of corners 12, 12 formed at both ends of the side S 1 of the main body 1. , 5a are formed (see FIG. 2B).

  As shown in FIG. 2 (C), the food container A1 is opened by connecting the joining regions 6a and 6a formed at the corners 12 and 12 at both ends of the side S1 of the main body 1 with the arrow F2 from the main body 1 side. , F2 is pushed up in the direction, thereby breaking the fragile portions 4a, 4a. When the fragile portions 4a and 4a are broken, the lid portion 2 in the food container A1 loses the adhesive portion with the main body portion 1, so that it is unfolded in the direction indicated by the arrow Y, whereby the food container A1 is opened. (See FIG. 2D).

(5) Modified embodiment 2 of food container A
As a modified embodiment 2 of the food container A of the present embodiment, FIG. 3 shows a food container A2 in which a total of four fragile portions 4a are formed on both the main body 1 side and the lid 2 side. 3 (A) to 3 (D) also show a series of shape changes until the food container A2 in the opened state is sealed and opened again, as in FIG.

  In the food container A2 shown in FIG. 3A, the fragile portion 4a includes a side S1 that faces the one side of the main body 1 on the hinge 3 side and a side S2 that faces the one side of the lid 2 on the hinge 3 side. A total of four portions are formed at the corners 12 and 12 and the corners 22 and 22 at both ends. About the structure except the point where the weak part 4a was formed in four places, the food container A1 is the same as that of the food container A shown in FIG. 1, The detail is as above-mentioned.

  As in the case of the food container A, the food container A2 in the open state is bent in the direction of the arrow X with the hinge part 3 as the fold line part, so that the opening part 15 of the main body part 1 is sealed. It is stopped (FIG. 3 (A)). In order to maintain the sealing state of the opening 15, the joint surfaces of the corners 12 and 12 at both ends of the side S 1 of the main body 1 and the corners 22 and 22 at both ends of the side S 2 of the lid 2 are Bonded portions 5a and 5a are formed (see FIG. 3B). The weakened portions 4a and 4a provided at the corner portions 12 and 12 of the main body 1 and the weakened portions 4a and 4a provided at the corner portions 22 and 22 of the lid portion 2 are sealed by the lid portion 2 of the main body portion 1. When the fragile portion 4a (main body portion 1 side) and the fragile portion 4a (lid portion 2 side), which are in a positional relationship facing each other vertically, overlap each other, a total of two fragile portions 4a and 4a are formed. (See FIG. 3B).

  Here, as shown in FIG. 3 (C), the opening operation of the food container A2 is performed by joining regions formed at the corners 12, 12, 22, and 22 at both ends on one side of the food container A2 facing the hinge part 3. 6a and 6a are pushed down from the lid part side 2 in the directions of arrows F1 and F1 by a finger or the like, and the fragile parts 4a and 4a are broken. In food container A2, since weak parts 4a and 4a formed in lid part 2 are in a position which overlaps with weak parts 4a and 4a formed in main part 1, joint area 6a and 6a will be pushed down below. In addition, not only the fragile portions 4a and 4a formed in the lid portion 2 but also the fragile portions 4a and 4a formed in the main body portion 1 are broken, and as a result, the joining regions 6a and 6a are connected to the main body portion 1 and the lid portion 2. Completely separated from Thereby, the cover part 2 loses an adhesion part with the main-body part 1, is expand | deployed in the direction which the arrow Y shows, and food container A2 is opened (refer FIG.3 (D)). In addition, in the food container A2, even when the joining regions 6a and 6a are pushed upward from the main body 1 side (not shown), the four weak portions 4a are formed in the same manner as when pushed down. It breaks and the joining area | regions 6a and 6a of the main-body part 1 and the cover part 2 are completely isolate | separated from the main-body part 1 and the cover part 2, Thereby, food container A2 can be opened.

  As described above, the food container A of the present embodiment and the food containers A1 and A2 which are the modified embodiments 1 and 2 are provided with the bonding portions 5a and 5a of the main body 1 and the lid 2 by the above-described configuration. Only by applying an external force to the joining regions 6a and 6a to be included, either the main body 1 or the lid 2 or the weakened portions 4a and 4a formed in the main corner 1 and the lid 2 are easily broken. It is devised to be opened. With this configuration, the food containers A, A1, and A2 can be easily opened without applying excessive force to the containers, and the food contained in the food containers A, A1, and A2 can be easily eaten. It becomes possible. In addition, in the structure of the food containers A and A2 in which the fragile portions 4a and 4a are formed at least on the lid portion 2, the positions of the fragile portions 4a and 4a can be easily seen from above. 6a, 6a) can be easily recognized, so that the food containers A, A2 can be opened more easily. About the ease of visual recognition of this opening location, it is the same also about the food containers B and C in 2nd, 3rd embodiment mentioned later.

2. Second Embodiment A food container B according to a second embodiment of the present invention is schematically shown in FIG. 4A to 4D show a series of changes in shape from when the food container B in an open state is sealed and reopened. About the structure of the food container B, the same code | symbol is attached | subjected to the same thing as the food container A of 1st Embodiment shown in FIG. 1, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4A, the food container B is roughly composed of a main body portion 1, a lid portion 2, a hinge portion 3, and a fragile portion 4b. About the main-body part 1, the cover part 2, and the hinge part 3, it is the same shape as the food container A mentioned above, Comprising: Only the structure of the weak part 4b differs from the structure of the weak parts 4a and 4a in the food container A. Yes.

  Here, the weak part 4b formed in the food container B is formed in a straight line parallel to the hinge part 3 over the entire side S2 of the lid part 2 facing the hinge part 3, and this weak part. Both ends of 4 b reach the end of the lid 2.

  The weak part 4b in the food container B is constituted by a broken line, for example, like the weak part 4a provided in the food container A of the first embodiment. This break line becomes a portion that is weaker than the periphery due to the formation of discontinuous cuts, and becomes a portion that is easily cut off. As in the case of the fragile portions 4a, 4a of the first embodiment, the width, depth, interval, etc. of the break line cuts may be appropriately selected according to the strength of the material used for the food container B.

  Further, the configuration of the fragile portion 4b is not limited to the breaking line, as in the case of the fragile portions 4a and 4a of the first embodiment, and can be easily reduced in thickness compared to the other portions of the lid portion 2. The fragile portion 4b is not limited to one that is formed in a straight line, and may be formed in a plurality of straight lines. Alternatively, it may be formed in a curved line, and may be composed of a linear part and a curved part.

  FIG. 4A shows an unsealed state of the food container B before sealing. FIG. 4B shows a state after sealing. Similar to the food container A of the first embodiment, in the food container B, the lid 2 is folded in the direction of the arrow X shown in FIG. It is folded. Moreover, the adhesion part 5b is formed in a part of joining surface of the main-body part 1 and the cover part 2, and the food container B is sealed.

  For example, as shown in FIG. 4B, the bonding portion 5b is linear (rectangular) along the fragile portion 4b in the outside (end side) bonding region 6b divided by the fragile portion 4b. Can be provided. In FIG. 4B, only one bonding portion 5b is provided in the bonding region 6b, but it may be provided in a plurality of locations.

  FIG. 4C shows a state when the food container B is opened. In the food container B sealed with the adhesive portion 5b, when the rectangular joining region 6b divided by the fragile portion 4b is pushed down in the direction indicated by the arrow F1, the fragile portion 4b is broken. When the fragile portion 4 b is broken, the joining region 6 b of the lid portion 2 joined to the main body portion 1 by the adhesive portion 5 b is separated from the other regions of the lid portion 2. And when joining area | region 6b is cut | disconnected from the cover part 2, the cover part 2 which lost the adhesion part with the main-body part 1 will lift, and it expand | deploys in the direction shown by the arrow Y shown to FIG. Is opened.

  Moreover, also about the food container B of this embodiment, if the main-body part 1 and the cover part 2 are integrally molded via the hinge part 3 with the material which has elasticity, when the weak part 4b is fractured | ruptured. The lid portion 2, which has lost the adhesive portion with the main body portion 1, is automatically lifted in the direction of the arrow Y by the restoring force to return to the shape when the hinge portion 3 is molded, so that the food container B is further opened. It becomes easy.

  As described above, the food container B of the present embodiment has the above-described configuration, and the fragile portion 4b is broken and easily opened by pushing down the fragile portion 4b formed on the lid portion 2 downward. The weak part 4b may be formed only in the main body part 1 or in both the main body part 1 and the lid part 2 in the food container B as in the first and second modifications of the first embodiment.

3. 3rd Embodiment About the food container C which concerns on the 3rd Embodiment of this invention, it shows typically in FIG. FIGS. 5A to 5D show a series of changes in shape from when the food container B in the open state is sealed and reopened. About the structure of the food container C, the same code | symbol is attached | subjected to the same thing as the food container A of 1st Embodiment shown in FIG. 1, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5A, the food container C is roughly composed of a main body portion 1, a lid portion 2, a hinge portion 3, and a fragile portion 4c. About the main-body part 1, the cover part 2, and the hinge part 3, it is the same shape as the food container A, and only the weak part 4c differs from the weak part 4a in the food container A. The weakened part 4c formed in the food container C is formed in a curved line (curved line shape) at the center part of the side S2 opposite to the hinge part side of the lid part 2. Further, both ends of the fragile portion 4 c reach the end portion of the lid portion 2.

  Although the form of the food container C of this embodiment is not specifically limited, In this embodiment, in the same manner as the food containers A and B described above, in addition to a square in plan view, a rectangular shape in plan view and a polygonal shape are used. Moreover, in the food container C, it can also be set as the planar view (upward view) circular form (especially not shown). When the food container C is formed in a circular shape in plan view, the adhesive portion 5c can be provided on a part of the circumference facing the part of the circumference where the hinge part 3 is formed.

  The fragile portion 4c in the food container C is a linear fragile portion 4a, 4a provided in the food container A of the first embodiment, or a linear shape provided in the food container B of the second embodiment. Unlike the weak part 4b, it is comprised by the broken line which consists of a curve. This broken line is also a portion that is easily cut off by forming discontinuous cuts and becoming weaker than the periphery.

  What is necessary is just to select suitably according to the intensity | strength etc. of the material used for the food container A also about the width | variety of the break line of a break line, a depth, a space | interval, etc. Further, the configuration of the fragile portion 4c is not limited to the breaking line, as in the other embodiments, and is formed so as to be easily broken by reducing the thickness compared to other portions of the lid portion 2. Any shape can be used as long as it is.

  The weakened portion 4c provided in the food container C is formed from a curved broken line, and the joining region 6c including the adhesive portion 5c has a substantially semicircular shape. When done, it is easy to match the shape of a rounded fingertip, and therefore has the advantage of being easy to apply force. The bonding portion 5c provided in the bonding region 6c is provided at one location, but may be provided at a plurality of locations, and the shape thereof is not limited to the illustrated shape.

  FIG. 5C shows a state when the food container C is opened. In the food container C sealed with the adhesive portion 5c, when the joining region 6c portion divided into the fragile portions 4c is pushed down in the direction indicated by the arrow F1, the fragile portion 4c is broken by the force. When the fragile portion 4 c is broken, the joining region 6 c of the lid portion 2 joined to the main body portion 1 by the adhesive portion 5 c is separated from other regions of the lid portion 2. Thereby, the cover part 2 which lost the adhesion part with the main-body part 1 lifts, expand | deploys in the direction shown by the arrow Y shown to FIG 5 (D), and the food container C is opened.

  Moreover, also about the food container C of this embodiment, if the structure by which the main-body part 1 and the cover part 2 were integrally molded via the hinge part 3 with the material which has elasticity, the time when the weak part 4c was fractured | ruptured is adopted. Then, the lid portion 2 that has lost the adhesive portion with the main body portion 1 is automatically lifted in the direction of the arrow Y by the restoring force to return to the shape at the time of molding of the hinge portion 3, so that the food container C is opened. It becomes easier.

  As described above, also in the food container C of the present embodiment, only the fragile portion 4c is broken by pushing down only the joint region 6c separated from the other regions by the fragile portion 4c, thereby the lid portion 2 Can be opened easily. In addition, the weak part 4c may be formed only in the main-body part 1 or both the main-body part 1 and the cover part 2 in the food container C similarly to the modification 1 and 2 of 1st Embodiment.

  In all the embodiments described above, the food container (A, A1, A2, B, C) can be opened only by simple opening means of pushing the joining area (6a, 6b, 6c) of the main body 1 and the lid 2. Is performed by breaking the fragile portions (4a, 4b, 4c). For this reason, in the food container according to the present invention, it is possible to open the food container without excessive force and eat the food contained in the food container. That is, according to the simple opening means of the food container, it is possible to prevent the food from being accidentally spilled from the container or stuck to the hand during the opening operation. Although it is an example, it is suitable for accommodating natto, which is viscous and may contaminate hands.

A, A1, A2, B, C: Food container E: Space S1, S2: Side

1: Body 11: Body outer periphery (flange)
12, 12: Corner 13: Bottom 14: Wall 15: Opening

2: Lid 21: Lid outer periphery (flange)
22, 22: Corner 23: Convex frame

3: Hinge 31: Triangular groove

4a, 4b, 4c: weak parts 5a, 5b, 5c: adhesive parts 6a, 6b, 6c: bonding regions

Claims (3)

A food container in which a body part for storing food and a lid part are connected via a hinge part,
An adhesive part is provided in a part of the surface where the main body part and the lid part are joined to each other
A fragile portion that separates the bonding region including the bonding portion from other regions is formed in the main body portion and / or the lid portion, and an external force is applied to the bonding region to break the fragile portion,
Food container to be opened.   The food container according to claim 1, wherein the fragile portion is a broken line. The hinge portion is provided on one side of four sides constituting the lid portion formed in a rectangular shape in plan view or a square shape in plan view,
The food container according to claim 1 or 2, wherein the fragile portion is formed at corners at both ends of the side facing the hinge portion.

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