JP2015227176A - Packaging container enabling food cooking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost packaging container enabling food cooking, effectively protecting the fingers of a user from steam generated during microwave heating, and making a whole container size compact.SOLUTION: A packaging container 300 enabling food cooking includes: an internal barrier 250 in which at least part of a lid flange part 140 is stored inside an opening edge part 240 when engaging a lid part 100 and a body part 200, and the body part 200 is formed outside the opening edge part 240 so as to be erected upward; an external barrier 260 formed on the outside of at least part of the internal barrier 250 so as to be suspended downward from an upper end side; and a handle part 270 capable of being held with the fingers of a user, outside the external barrier 260. A height of the external barrier 260 is formed to be higher than a height of the fingertip of the finger U above the handle part 270 when the user holds the handle part 270.

Description

  The present invention relates to a packaging container, and more particularly, to a packaging container that can be cooked by cooking foods that can be heated and eaten, used as a food package, and cooked by heating in a range.

  2. Description of the Related Art Conventionally, a packaging container made of a material that can be heated by a range and made up of a lid and a container body is known. This packaging container is capable of cooking food by heating it in a state where the food is contained in the container body.

  For example, the packaging container of Patent Document 1 is for food-heat-cookable packaging in which the container main body and the lid body are integrated by fitting the fitting convex portion of the lid body into the fitting concave portion of the container main body. It is a container and the handle part which a user hold | grips is provided in the outer side of the opening edge part of a container main body. Furthermore, between the opening edge part and the handle part, there is provided a barrier that is slanted and slanted.

  And when food is accommodated in a container main body and the range is heated with the lid lightly covered, heated steam spouts from between the opening edge of the container main body and the lid. However, since the barrier is inclined gently and obliquely, the jetted steam is jetted laterally along the barrier. Therefore, there is a possibility that the user's finger holding the handle portion is not reliably protected from the steam.

  Further, the packaging container of Patent Document 2 has a housing portion in which a circular opening is formed, and a pair of gripping flange portions formed so as to protrude outward at the periphery of the opening, The gripping flange portion is formed with a recess for the user to place a finger at a position away from the opening.

  And if the range is heated with the lid lightly covered, the heated steam spouts from between the opening of the container body and the lid, but the recess of the gripping flange is formed at a position away from the opening. Therefore, steam does not reach the user's finger. However, in order to protect the finger from the jetted steam, the gripping flange portion protrudes greatly to the outside, and thus the size of the entire container must be increased. As a result, when such a container is manufactured from a resin sheet by sheet molding, the number of forming containers that can be removed from the mold is reduced, the material cost is increased, and the environmental load is increased.

  Moreover, such food-cookable packaging containers are sold at stores, etc., with foodstuffs contained so that they can be eaten as they are heated, so that the price of the entire product is high for the grocery dealer. In order to avoid this, it is desirable that the container itself be low cost. In addition, general consumers who have purchased this product would like to use a disposable packaging container that is low in price and easy to use so that it can be cooked by heating the range as it is, and the packaging container can be discarded after cooking. It is out.

Design registration No. 1402392 JP2013-255576A

  Therefore, in view of the above problems, the present invention effectively protects the user's finger from the steam generated during the range heating, and can reduce the size of the entire container and can cook food at low cost. A packaging container is provided.

  In order to solve the above problems, a packaging container capable of food heating cooking according to claim 1 of the present invention is molded from a resin sheet that can be cooked in a range, and has a fitting convex part and an outer side than the fitting convex part. Capable of cooking with food, comprising a lid portion provided with a lid flange portion, a resin sheet that can be range-heated, and comprising a fitting recess and a main body provided with an opening edge outside the fitting recess. In the packaging container, at the time of fitting the lid portion and the main body portion, at least a part of the lid flange portion fits inside the opening edge portion, and the main body portion further includes the opening edge portion. An inner barrier formed so as to rise upward, an outer barrier formed by drooping downward from the upper end side to the outside of at least a part of the inner barrier, and an outer side of the outer barrier. A handle that can be gripped by the user's finger For example, the height of the outer barrier, characterized in that the user has formed to be higher than the height of the fingertip of the finger on the handle portion when the gripping the handle portion.

  According to the said characteristic, the vapor | steam ejected to a horizontal direction from an opening edge part by the range heating hits the inner side barrier formed so that it may go upwards, and flows upward along the surface. Therefore, there is no possibility that the user's finger located on the side of the main body touches the ejected steam, and it is safe.

  Furthermore, since the outer barrier is formed to hang downward in the direction opposite to the inner barrier, no vapor flows along the outer barrier, and the height of the outer barrier is Since the height of the fingertip is higher than that of the fingertip, the user's fingertip can be reliably protected even if, for example, the steam blows to the side beyond the inner barrier.

And conventionally, since the handle portion was greatly separated from the opening portion so that the vapor ejected from the opening portion did not reach the finger, the entire shape was projected greatly to the side. However, since the present invention protects the fingers not by the side but by the inner and outer barriers formed in the vertical direction, the overall shape does not protrude greatly to the side and is compact. It becomes. As a result, the number of forming containers that can be removed from the mold increases, and the manufacturing cost also decreases.

  Furthermore, the packaging container according to claim 2 of the present invention capable of cooking by heating is characterized in that the height from the upper end to the lower end of the outer barrier is 5 mm or more.

According to the above feature, since the height of the outer barrier is set to 5 mm or higher, which is higher than the average height of the fingertips of adults, the fingertips can be protected even if any person picks the container.

  Further, the packaging container for food cooking according to claim 3 of the present invention is characterized in that the upper end side of the inner barrier is formed to rise at an angle of 30 degrees or less with respect to the vertical line. .

  According to the said characteristic, the vapor | steam ejected toward the side from the opening edge part hits an inner side barrier, and becomes easy to flow by changing direction upwards.

  Further, in the packaging container capable of cooking by heating according to claim 4 of the present invention, at least a part of the lid flange portion is formed with an opening knob that protrudes outward from the opening edge. It is characterized by.

  According to the above feature, since the opening knob protrudes outward from the opening edge from which the steam is ejected, the user can safely pick the opening knob and open and close the lid. .

  Further, the packaging container capable of cooking by heating according to claim 5 of the present invention is characterized in that the lower end side of the inner barrier is a curved inclined surface.

  According to the above feature, some of the generated steam accumulates around the inner barrier as water droplets, and the water droplet may be heated to become steam, but the lower end side of the inner barrier has a curved inclined surface. Therefore, it is possible to prevent water droplets from collecting by flowing water droplets inside the container.

  The packaging container for food cooking according to the present invention effectively protects the user's fingers from the steam generated during cooked cooking of meat, vegetables and other fresh ingredients, and the overall size of the container is compact. This can reduce the manufacturing cost.

(A) is a plan view of the lid of the packaging container of the present invention, (b) is an AA end view shown in FIG. 1 (a), and (c) is a BB end view shown in FIG. 1 (a). It is. It is a perspective view of the main-body part of the packaging container of this invention. (A) is a plan view of the main body of the packaging container of the present invention shown in FIG. 2, (b) is a CC end view shown in FIG. 3 (a), and (c) is shown in FIG. 3 (a). It is a DD end view. (A) is a top view of the packaging container of this invention, (b) is the EE end elevation shown to Fig.4 (a). FIG. 5B is a diagram showing the movement of steam by enlarging the periphery of the opening edge in a state where the lid is lightly covered and heated in the range in FIG. In FIG. 5, it is a figure explaining an inner side barrier and an outer side barrier in detail. It is a figure which shows the other Example of the packaging container of this invention.

100 lid portion 130 fitting convex portion 140 lid flange portion 230 fitting concave portion 240 opening edge portion 200 main body portion 250 inner barrier 260 outer barrier 270 handle portion 300 packaging container

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIG. 1 shows a lid 100 of a packaging container 300 of the present invention. As shown in the figure, the lid portion 100 has a shallow dish shape that opens downward, and includes a top plate 110 that is substantially rectangular in plan view and a side wall 120 that is formed so as to fall from the end of the top plate 110. Have. A fitting convex portion 130 is provided at the lower end portion of the side wall 120, and a lid flange portion 140 extending in the horizontal direction is provided outside the fitting convex portion 130. The side wall 120, the fitting convex portion 130, and the lid flange portion 140 are continuously provided over the entire circumference in the circumferential direction of the lid portion 100.

  Next, FIG.2 and FIG.3 shows the main-body part 200 of the packaging container 300 of this invention. As shown in the figure, the main body 200 has a shallow dish shape that opens upward, and includes a bottom plate 210 that is substantially rectangular in plan view and a side wall 220 that is formed so as to rise from an end of the bottom plate 210. ing. Legs 211 are provided at the four corners of the bottom plate 210 and are continuous with the side wall 220. Further, a fitting recess 230 is provided at the upper end of the side wall 220, and an opening edge 240 extending in the horizontal direction is provided outside the fitting recess 230. The side wall 220, the fitting recess 230, and the opening edge portion 240 are continuously provided over the entire circumference in the circumferential direction of the main body portion 200.

  Further, an inner barrier 250 formed so as to rise upward from the outer end of the opening edge 240 is provided on both ends in the longitudinal direction of the main body 200. An outer barrier 260 is provided so as to hang downward from the connecting wall 251 on the upper end side.

  And the handle part 270 continuously formed toward the outside from the lower end of the outer barrier 260 is provided, and this handle part 270 can be gripped with a finger by a user using the packaging container 300, and It has a recessed shape so that it can be easily gripped. The height of the outer barrier 260 is formed to be higher than the average height of an adult fingertip, and details thereof will be described later.

  The lid 100 and the main body 200 according to the present embodiment are thermoformed using a material having heat resistance to such an extent that range heating is possible, and in particular, sheet molding (for example, vacuum forming, pressure forming, heat For example, OPS (biaxially stretched polystyrene), heat-resistant PET, or polypropylene is used as the material of the lid 100, and polypropylene or filler is used as the material of the main body 200. Polypropylene or heat-resistant polystyrene can be used. In particular, in the case of a thin container using a resin sheet of about 0.2 to 1.5 mm, the problem that the heat of the vapor in the container is easily transmitted to the finger is likely to occur, and the effect of the present invention becomes remarkable. Further, the heat resistance to the extent that range heating is possible means a level that can withstand range heating of a certain amount of heat (temperature rise × time), which is assumed to be cooked in the packaging container 300 of the present application. For example, steamed shrimp is cooked by placing raw shrimp on the bottom plate 210 of the main body 200 of the packaging container 300 of the present invention, and performing cooking by heating for 500 w for 2 minutes 30 seconds with the lid 100 lightly covered. Things will be possible. The lid 100 and the main body 200 are substantially rectangular in plan view, but can be appropriately changed to other shapes such as a substantially circular shape in plan view and a polygon in plan view.

  Next, the packaging container 300 in a state where the lid 100 shown in FIG. 1 is covered with the main body 200 shown in FIGS. 2 and 3 will be described with reference to FIG.

  As shown in the figure, the fitting convex portion 130 of the lid portion 100 is fitted into the fitting concave portion 230 of the main body portion 200, and the lid flange portion 140 is tightly fitted in the opening edge portion 240 (this state) Is called internal fitting), and the liquid container does not leak out of the container. Further, the opening knob 150 formed continuously from the vicinity of the corner portion of the lid flange 140 is outside the opening edge 240 in the state of being covered as shown in the figure, and includes the inner barrier 250 and the handle. It protrudes to a position that does not overlap the portion 270.

  The state shown in FIG. 4 is a state where food is stored in a container at a store or the like and sold (originally, the food is stored in the packaging container 300, but is not shown in FIG. 4). When the consumer purchases this and cooks it, range heating is performed in the state shown in FIG. The reason why the lid 100 is lightly covered in this manner is that when the lid 100 and the main body 200 are completely fitted and sealed, there is no escape space for steam generated during range heating. In the following description, it is assumed that steam has a property of moving upward in the vertical direction unless there are obstacles or the like.

  First, when the packaging container 300 is taken out after the range heating, as shown in FIG. 5, the consumer (user) places the handle portion 270 with a finger U (for example, thumb) and another finger U1 (for example, an index finger). Grip with At that time, as shown in FIG. 5, steam (see steam S <b> 1 in FIG. 5) blows out laterally from the periphery of the opening edge 240 in the gap between the lid 100 and the main body 200.

  The steam S1 hits the inner barrier 250 rising upward, and is jetted upward along the inner barrier 250 (see steam S2 in FIG. 5). This upward steam S2 does not reach the user's finger U holding the handle portion 270, and the user's finger U is protected from the steam.

  Further, since the outer barrier 260 hangs downward from the upper end side of the inner barrier 250, even if a part of the steam S3 of the steam S2 advances in the lateral direction, it does not fall along the outer barrier 260. (Since steam has the property of traveling upward in the vertical direction, it does not descend downward). Therefore, the user's finger U holding the handle portion 270 is reliably protected from the steam S3.

  Further, since the height of the outer barrier 260 is higher than the height of the fingertip of the user holding the handle portion 270, the steam S3 traveling in the lateral direction does not touch the user's finger U.

  Further, although the inner barrier 250 is directly exposed to the vapor and becomes high temperature, there is a gap X between the inner barrier 250 and the outer barrier 260, and the heat of the inner barrier 250 is not easily transmitted to the outer barrier 260. Furthermore, the outside barrier 250 that has been heated by the heat of the steam is cooled by the outside air present in the gap X. For this reason, the heat of the steam is not easily transmitted to the user's finger U holding the handle portion 270, which is safe.

  Thus, the heat from the inner barrier 250 is not easily transmitted to the outer barrier 260 due to the heat insulating action of the gap X, so that the inner barrier 250 and the outer barrier 260 can be brought close to each other, and as a result, the entire main body 200 is made compact. It can be done.

  Further, the main body 200 may be slightly softened by the range heating. Then, when the main body 200 is lifted, the inner barrier 250, the outer barrier 260, and the periphery thereof may be distorted. However, since the barrier for preventing vapor is composed of a plurality of walls, that is, the inner barrier 250 and the outer barrier 260, the strength of the barrier is increased. Therefore, even if the main body 200 is lifted, the barrier formed by the inner barrier 250 and the outer barrier 260 is not easily distorted, and the effect of the barrier that protects the fingertip from the vapor can be maintained. Furthermore, since the inner barrier 250 and the outer barrier 260 are connected in a substantially U shape in a state of being close to each other (in this embodiment, they are connected by the connecting wall 251), the strength is further increased.

  Next, the configuration of the inner barrier 250 and the outer barrier 260 will be described in more detail with reference to FIG.

  As shown in FIG. 6, the upper portion of the inner barrier 250 is perpendicular to the horizontal line P from the outer end of the opening edge 240 that extends along the horizontal line P that is parallel to the ground and intersects the vertex of the upper end of the inner barrier 250. Thus, it is formed so as to rise at an angle of 30 degrees with respect to the vertical line N intersecting with the top of the inner barrier 250. And by setting the rising angle with respect to the vertical line N to 30 degrees or less, the steam can be blown upward as it is without inadvertently expanding to the side, so the finger U located on the side It can be effectively protected. Further, when the rising angle is set to 0 degrees or less, that is, when the inner barrier 250 is inclined inward beyond the vertical line N, the lid flange portion 140 may be caught by the inner barrier 250, which hinders the attachment / detachment of the lid portion 100. I get out. Further, if the angle is 0 degrees or less, the inner barrier 250 has an undercut shape, so that it is difficult to remove from the mold during sheet molding. Therefore, the rising angle of the inner barrier 250 is optimally from 0 degree to 30 degrees. The vertical line N also coincides with the vertical direction in which the steam rises.

  Moreover, the vapor | steam S1 (refer FIG. 5) spouted from the opening edge part 240 periphery of the clearance gap between the cover part 100 and the main-body part 200 hits the inner side barrier 250, and the one part is cooled and accumulates as a water droplet. Then, the accumulated water droplets are reheated to become steam or ejected together with the steam. However, the lower end side of the inner barrier 250 is curved and has an inclined surface inclined inward, so that water droplets easily flow to the inside of the container and are difficult to accumulate. Further, if not only the lower end of the inner barrier 250 but also the opening edge 240 is inclined inward, water droplets can flow more easily inside the container.

  Further, the height H1 from the upper end 261 to the lower end 262 of the outer barrier 260 is set to 5 mm or more, which is higher than the average height of the adult fingertip of the human fingertip so that the fingertip can be protected from steam. Since this 5 mm is the average height of a human fingertip, it is optimal that the height H1 from the upper end 261 to the lower end 262 be 5 mm or more.

  Here, an example of the heat insulating effect by the gap X between the outer barrier 260 and the inner barrier 250 will be described with specific numerical values. After putting 200 CC of water into the main body 200 of the container of this embodiment (height H1 = 5 mm, gap X = 5 mm, rising angle = 10 degrees, sheet thickness 1.0 mm), and heating for 1 minute in a 1700 w microwave oven, When the outer barrier 260 and the inner barrier 250 were measured with a contact thermometer (Rika Kogyo DP-350), the outer barrier 260 was 31.6 ° C. and the inner barrier 250 was 78.7 ° C. Thus, the high heat insulation effect of the clearance gap X is confirmed, and it turns out that a user's fingertip is protected appropriately.

  Next, a modified example of the present invention will be described with reference to FIG. In the modified example shown in FIG. 7, the shape of the outer barrier and the handle is different from the outer barrier 260 and the handle 270 of the embodiment shown in FIGS. 1 to 6, and other configurations are the same. Details of other configurations are omitted.

  Next, the handle portion 2270 shown in FIG. 7 (a) is different from the recessed shape (see FIG. 6) like the handle portion 270, and the portion inclined from the outside of the outer barrier 2260 and the horizontal bottom surface. Become. Further, the height of the outer barrier 2260 can be arbitrarily changed in a range where the height H2 from the upper end 2261 to the lower end 2262 is 5 mm or more.

  Next, the outer barrier 3260 shown in FIG. 7B is different from the outer barrier 260 (see FIG. 6), and is provided with a convex portion 3263. Thus, by providing the convex portion 3263, the finger U is easily caught on the outer barrier 3260, and the position of the finger U is not easily displaced with respect to the outer barrier 3260. Therefore, since the position of the finger U is difficult to shift, there is no possibility that the finger U may move carelessly and touch the steam. In addition to the convex portion 3263, a concave portion, a step, or the like may be provided so that the overall size of the container does not become too large. In addition, since the height H3 from the upper end 3261 to the lower end 3262 is 5 mm or more, the finger U can be reliably protected from steam.

  The food used in the present invention may be anything as long as it can be cooked by cooking in a range. For example, when seasoning such as fresh seafood, raw vegetables and herbs is placed in the container of the present invention and cooked in a range, aqua pazza can be cooked. In addition, a warm vegetable salad can be cooked by adding raw vegetables such as potatoes and carrots and seasoning liquids such as soy sauce and heating them in a range.

  The packaging container of the present invention is not limited to the above-described examples, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments. Combinations are also included in the scope of rights.

Claims (5)

Molded from a resin sheet capable of range heating, a fitting convex part, and a lid part provided with a lid flange part outside the fitting convex part,
A packaging container that is formed from a resin sheet that can be cooked in a range and includes a fitting recess and a main body provided with an opening edge outside the fitting recess.
At the time of fitting the lid and the main body, at least a part of the lid flange fits inside the opening edge,
Further, the main body portion is formed on the outer side of the opening edge portion so as to rise upward, and an inner barrier,
An outer barrier formed on the outside of at least a part of the inner barrier, and hanging downward from the upper end side;
A handle portion that can be gripped by a user's finger outside the outer barrier, and the height of the outer barrier is greater than the height of the fingertip of the finger on the handle portion when the user grips the handle portion A packaging container capable of cooking by heating, characterized by being formed to be high.   The packaging container according to claim 1, wherein a height from the upper end to the lower end of the outer barrier is 5 mm or more.   The packaging container according to claim 1 or 2, wherein an upper end side of the inner barrier is formed to rise at an angle of 30 degrees or less with respect to a vertical line.   The food can be cooked by heating according to any one of claims 1 to 3, wherein an opening knob projecting outward from the opening edge is formed on at least a part of the lid flange. Packaging container.   The packaging container according to any one of claims 1 to 4, wherein a lower end side of the inner barrier is a curved inclined surface.

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