JPH0713753U - Food container - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the stored food is heated in a microwave oven etc., the deviation prevention function does not deteriorate, and in addition to the strength of the container and the deviation prevention effect, synthetic resin food with deviation prevention function superior to conventional products. Providing a container. A food container comprising a container body 1 for containing food, a lid 2 and an intermediate pressing member 3, wherein the intermediate pressing member is provided with a plurality of downward convex portions 6 in contact with the food to be stored. Food container made of synthetic resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a food container having a function of preventing misalignment of stored items, and more particularly to a container having a function of preventing misalignment of foods, which stores cooked foods to be taken home or to be served outdoors.

[0002]

[Prior art and its problems]

 BACKGROUND ART Synthetic resin containers for storing cooked foods, confectionery, etc. have been well known, and a device for preventing misalignment of these foods has been announced. For example, in Japanese Utility Model Laid-Open No. 1-116116, in order to prevent the food from being unbalanced in the container when bringing back cooked food such as yakisoba, the side of the food containing the container bottom and lid is There has been proposed a synthetic resin food container having a convex portion on its bottom. In addition, in Japanese Utility Model Laid-Open No. 3-117644, in order to prevent foods such as eclairs from being contacted during transportation and being partially damaged, a partition is provided in the container body so that foods can be individually stored. In addition to the above, a synthetic resin container has been proposed in which a convex portion is provided on the side wall of the storage portion and on the food-side surface of the lid, thereby enabling stable storage of the stored food product.

As described above, in the conventional food container with the deviation preventing function, the protrusion is mainly provided on the wall surface of the container body or the lid to prevent the deviation. In some cases, the container body and lid may be deformed by heat and pressure when heated with a vacuum, etc., and the effect of preventing misalignment may be greatly diminished. There are drawbacks such as deterioration. Further, in the above-mentioned conventional container, since the food is held down by the convex portion or the like provided on the inner surface of the lid, a large space is inevitably formed between the food and the lid. There are also problems that promote food gaps. In addition, it may be difficult to secure the arrangement and amount of convex portions suitable for preventing deviation from the strength of the container or the processed surface, and it can be said that the conventional food container with a deviation preventing function described above is sufficiently effective. Absent.

[0004]

[Problems to be solved by the device]

 The present invention solves the above-mentioned problems found in containers having a function of preventing misalignment of stored foods, and even if the stored foods are heated in a microwave oven or the like, the function of preventing misalignment is not deteriorated, and the strength of the container is improved. It is an object of the present invention to provide a food container made of a synthetic resin, which is superior to conventional products in terms of the slip prevention effect, and has a slip prevention function.

[0005]

[Means for Solving the Problems]

 The inventors of the present invention have completed the present invention as a result of intensive studies to solve the above problems. That is, according to the present invention, there is provided a food container comprising a container main body for storing food, a lid and an intermediate presser member, wherein the intermediate presser member is made of a synthetic resin sheet having a plurality of downward convex portions in contact with the food to be stored. A food container characterized by comprising: Also, according to the present invention, there is provided the above food container, characterized in that an engaging portion for engaging with the container body is provided on a peripheral portion of the intermediate pressing member.

[0006] The food container of the present invention is a food container having a function of preventing misalignment of food, which is seen in the prior art, and prevents misalignment by an intermediate presser member, and cooked pasta such as spaghetti or macaroni. It is suitable as a container for cooked noodles such as fried noodles, fried noodles and fried noodles. It is preferably used when the cooked foods are displayed in a tilted manner in a showcase or brought home. The shift-preventing inner presser member, which characterizes the present invention, is a resin sheet having a shift-preventing convex portion below. The convex portion has a function of preventing the food from shifting, but it is desirable that the convex portion not only presses the food from above but also presses it into the food. Further, since the convex portion also serves as a rib of the intermediate presser member, even if the material for forming the intermediate presser member is thin, it can have the strength necessary for preventing the displacement.

The intermediate presser member having the function of preventing the contents from slipping has the effect of preventing the slippage by merely placing the convex portion on the food product without pushing it. This shows that the downward convex portion of the member has a surprising effect, and it is almost effective in preventing the food from slipping only by covering the food with a resin sheet such as a food protection film. Absent. Originally, the food protection film was intended to prevent the food from coming into contact with the lid of the container so that it would not look good, and it may be used under the intermediate presser member to cover the food. Absent. As described above, it is possible to provide the function of preventing misalignment and protecting food only by placing the intermediate presser member on the food, but the locking part provided at the peripheral edge of the member is provided between the container body and the lid. When sandwiched and fixed, the function to prevent misalignment is greatly enhanced. Further, since the member is separated from the container body and the lid, even if the stored food is heated in a microwave oven or the like, no pressure is exerted, so that the function deterioration when the stored food is heated is caused. Few. In addition, if the downward convex portion of the member is formed as a line object, the heat deformation rate of the portion decreases, and if a window is provided in the member, the heat deformation rate of the sheet surface of the member decreases. Then, the deterioration of the deviation prevention function during heating is almost eliminated. Even if the member does not have a window, the function of preventing misalignment is far superior to that of the conventional one, and since there is no window, it is possible to put a hole or the like on it and further, like the above-mentioned protective film. It can also exert its function.

The inner presser member described in detail above mainly suppresses the food from shifting in the horizontal direction at the downward convex portion, but the food is displaced upward due to the space between the container body and the lid. It also has the effect of suppressing. Therefore, it is preferable that the window provided in the intermediate presser member has a size that does not affect the displacement of the food, and in general, the size of one window is 15 to 80% of the sheet surface of the member, preferably 30 to 70% is preferable. Further, when pushed into food to prevent misalignment, the depth of the convex portion varies depending on the shape of the convex portion and the like, but normally it is about 20 to 40% of the thickness of the stored food. Good. In addition, when food is simply pressed from above to prevent misalignment, it is preferable to make the protrusions at least at the contact depth. As the intermediate presser member, a plurality of members each having a different downward convex shape may be used, or may be used on a food item protected by a food protective film such as a polypropylene film. In addition, a knob may be provided on the member to facilitate the removal of the member when eating.

The food container of the present invention can be formed of various synthetic resins, and particularly preferable resins are as follows. Styrene resins such as polystyrene, styrene-maleic anhydride copolymer, styrene-acrylic acid copolymer, styrene-methacrylic acid copolymer, and a mixture of polystyrene and polyphenyl ether; low density polyethylene, high density polyethylene, Olefin resins such as linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-propylene-butene copolymer; vinyl chloride such as polyvinyl chloride and polyvinylidene chloride Resins; ethylene-vinyl acetate copolymer and the like.

The above-mentioned synthetic resin is used in a sheet form for the food container forming material of the present invention, but the sheet may be a laminate of a plurality of films. For example, an aliphatic polyamide film such as nylon-6 film may be laminated to provide gas barrier property, and for this purpose, aromatic polyamide such as MXD nylon or saponified product of ethylene-vinyl acetate copolymer may also be used. used. An inorganic filler such as talc or calcium carbonate may be added to the synthetic resin sheet used in the present invention in an amount of 5 to 50% by weight, and heat resistance and strength can be improved by the addition. It is also preferable to use the synthetic resin as a foam sheet, and the use of the foam improves the heat retaining property of the food container. The foaming ratio of the foam is preferably 1.2 to 25 times.

The resin sheet described above can be used for all of the parts constituting the food container of the present invention, but the particularly preferable type of resin sheet differs depending on the part of the food container. For example, it is preferable that the intermediate presser member and the lid are made of a transparent resin sheet whose contents are easily seen, and the container body is made of a resin sheet having high strength and high moisture retention. Also, since it is better to change the coefficient of thermal expansion between the container body and the lid, it is preferable to decide the material to be used in consideration of this. Specific examples of the resin sheet used for each portion include a container body such as a transparent stretched film having a thickness of 50 to 200 μm for the intermediate pressing member and a transparent stretched film having a thickness of 50 to 300 μm for the lid. Examples include an inorganic filler-containing resin sheet having a thickness of 100 to 500 μm, or a resin foam sheet having a thickness of 0.3 to 3.0 mm, preferably 0.5 to 2.0 mm. As a preferable combination of the lid and the intermediate pressing member and the container body, a stretched polystyrene film is used for the intermediate pressing member and the lid, and a heat resistant material such as a polypropylene sheet containing a filler and a styrene-methacrylic acid copolymer is used for the container body. Examples include the use of a certain polystyrene resin foam sheet.

[0012]

【Example】

 Next, the food container of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view for explaining an example of the food container of the present invention, 1 is a container body, 2 is a lid, 3 is an intermediate pressing member, 4 is stored food, 5 is a convex portion on the bottom of the container, and 6 is an intermediate pressing member. A convex portion below the member, 8 is a locking portion at the peripheral edge of the member, 9 is a stepped portion inside the peripheral edge of the member, 10 is a brim at the peripheral edge of the container, and 11 is a peripheral edge portion of the lid. The container body, the lid and the intermediate pressing member can be easily manufactured by a method such as thermoforming the resin sheet into a desired shape and then punching. The convex portion 5 on the bottom of the container is a convex portion for enhancing the displacement prevention effect by the convex portion 6 below the intermediate presser member, and its shape is not particularly limited, but the direction of the convex portion 5 and the convex portion 6 is changed. Great effect of preventing misalignment. Even if the convex portion 5 does not exist, if the convex portion 6 is sufficiently pressed into the food 4, the strong prevention ability is exerted. Further, as shown in FIG. 5, the convex portions 5 and the convex portions 6 may be used in the same direction.

FIG. 2 is a plan view and a side view of the intermediate presser member 3, and 7 in FIG. 2 is a window. As can be seen from the figure, the intermediate presser member can have a wide variety of shapes, and various types other than (a) to (d) can be used. Note that (a) to (d) are plan views, and (a ') to (d') are side views corresponding to (a) to (d). 2 (a) and 2 (b), the downward convex portion has a rectangular cross section in the lateral direction (longer direction) and a triangular or trapezoidal intermediate presser member in the longitudinal direction, and downward convex portions in FIGS. 2 (c) and 2 (d). The part shows a cone-shaped intermediate presser member. The former is advantageous for pressing food from above, and the latter is advantageous for deeply inserting it inside food.Therefore, the shape of the intermediate presser member may be appropriately selected in consideration of the type of food and the purpose of use. . Further, both the downward convex portion having the shape as shown in (a) and (b) and the downward convex portion having the conical shape may be formed on one intermediate presser member.

The number of downward convex portions formed on the intermediate presser member varies depending on the shape and role of the convex portions, but when the food is pressed lightly from above, the convex portions having the shape shown in FIG. There should be two or more. When this convex portion and the convex portion 5 at the bottom of the container shown in FIG. 1 are used together, there is an effect that the contents hardly shift during normal transportation. In particular, if the directions of the convex portions 5 and the convex portions 6 are different, it is possible to almost completely prevent the displacement of the contents. If the number of downward convex portions formed on the intermediate presser member is conical, the larger the number, the higher the deviation prevention ability.However, if there are many such convex portions, the food storage area will decrease and manufacturing costs will increase. It is desirable to set the minimum number required considering the type and transportation method. The number is 2 to 16, preferably 4 to 8 in one food container for one meal.

The intermediate presser member 3 exists on the upper part of the container body so as to cover the opening of the container body 1. It is desirable that the peripheral edge engaging portion 8 of this member is in contact with the brim 10 at the upper peripheral edge of the container body, and the step portion 9 inside the engaging portion 8 is fitted to the upper side wall of the container body (Fig. 1). In this way, the intermediate pressing member 3 held by the container body 1 does not move from a predetermined place even when the container is laid down or moved violently, and therefore the function of preventing the contents from shifting is not deteriorated. However, even when the intermediate presser member 3 does not have the locking portion 8 and / or the stepped portion 9, if the intermediate presser member 3 is provided with the downward convex portion 6 as described above, the function of preventing the displacement of the intermediate presser member is not lost. In addition, the fact that the intermediate pressing member covers the opening of the container body to separate the food from the upper space also contributes to preventing the food from shifting.

When the lid 2 is put on the container body 1, it is preferable that the peripheral edge portion 11 thereof fits with the brim tip portion 12 at the peripheral edge of the upper portion of the container body. It is desirable that the flat surface portion 13 on the inner side of the lid peripheral edge abuts on the brim 10 of the container body, and the engaging portion 8 on the peripheral edge of the intermediate pressing member 3 is sandwiched therebetween. If the lid is formed in such a shape, the contents will not be spilled even if the food container is repeatedly squeezed, so that it is easy to handle. However, it is not limited to the above because the lid can be prevented from falling off by a method such as placing a lid on the container containing the food and then fastening it with a rubber band. FIG. 3 is a perspective view showing an example of the intermediate pressing member, the container body, and the lid described in detail above. 3A shows a lid, FIG. 3B shows an intermediate pressing member, and FIG. 3C shows a container body. Further, FIG. 4 shows a perspective view when food is put in the food container.

[0017]

[Effect of device]

 In the food container according to claim 1, since the contents are prevented from being displaced at the downward convex portion of the inner presser member, the food in the container is prevented from being unbalanced at the time of transportation, and therefore the food is hardened. Therefore, the troubles such as the deterioration of the flavor and the unpleasant appearance are reduced. In the food container according to claim 2, since the inner presser member is locked to the container body by the peripheral portion, the effect of preventing the contents from shifting is enhanced, and therefore the flavor and aesthetics of the food are retained. The effect is further enhanced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a typical food container of the present invention.

FIG. 2 is a diagram illustrating a plan view and a side view of an intermediate presser member used in a typical food container of the present invention.

FIG. 3 is a perspective view showing an example of a lid, an intermediate presser member, and a container body that constitute a typical food container of the present invention.

FIG. 4 is a perspective view showing a state in which food is stored in a food container composed of the members shown in FIG.

FIG. 5 is a perspective view showing another example of a lid, an intermediate presser member, and a container body that constitute a typical food container of the present invention.

[Explanation of symbols]

1 Container main body 8 Locking part on the periphery of the intermediate presser member 2 Lid 9 Step part of the intermediate presser member 3 Intermediate presser member 10 Collar on the upper peripheral edge of the container 4 Stored food product 11 Edge of the lid 5 Convex part on the bottom of the container 12 Tip of the collar Part 6 Projection below the intermediate presser member 13 Flat part inside the lid periphery 7 Window provided in the intermediate presser member

Claims (2)

[Scope of utility model registration request] 1. A food container comprising a container main body for storing food, a lid and an intermediate presser member, wherein the intermediate presser member is made of a synthetic resin sheet having a plurality of downward convex portions in contact with the food to be stored. Characteristic food container. 2. The food container according to claim 1, wherein an engaging portion for engaging with the container body is provided at a peripheral portion of the intermediate presser member.