JP6191863B2 - Web corner paper container - Google Patents

Description

  The present invention belongs to the technical field of a paper container made of paperboard, and particularly relates to a web corner type paper container having a structure in which four corners are folded outward and bonded to the outer surface of a side plate.

  A packaging container called a web corner type paper container has been widely used in general in the past, and the main body of this paper container has a structure in which the four corners are folded outward and bonded to the outer surface of the side plate. It is particularly suitable for adding foods with seasonings or oils, or foods with boiled juice.

  This web corner type paper container is roughly divided into two types, one with the top surface released without a lid and the other with the main body and lid integrated and the container can be closed. The web corner type paper container is suitably used as a paper container for storing food for microwave cooking.

  And as a web corner type paper container with a lid currently on the market for this application, a paper container described in Patent Document 1 is closed by inserting a large lid plate, As in the paper containers described in Documents 2 and 3, the mainstream is to close two lid plates by crossing them or inserting them into cuts.

JP 2007-145392 A JP 2008-68885 A Utility Model Registration No. 3176852

  The above-mentioned web corner type paper container with a lid has either a side plate or a web corner when taking out food from the microwave oven after heating when putting foods and cooking in a microwave oven. However, if the web corner has a folded portion, it is difficult to hold the container, and heat is transmitted when the hand protrudes, so that it is difficult to hold the container.

  This invention is made | formed in view of such a situation, The place made into the objective is to take out in comfort by having it in the state which is not hot, when cooking with a microwave oven and taking out from the inside of a store | warehouse | chamber. An object of the present invention is to provide a web corner paper container that can be used.

In order to achieve the above object, the web corner type paper container of the present invention has a front side plate, a rear side plate, a left side plate, and a right side plate connected to each other through folding lines on the front, rear, left and right sides of a rectangular bottom plate. Each of these side plates is provided with a triangular fold piece connected to both sides via fold lines, and adjacent fold pieces are connected to each other via a radial fold line extending outward from the corner of the bottom plate. The web corner portion is formed, and the front plate and the rear plate are respectively connected to the upper side via a fold line, and the left side plate and the right side plate are connected to the upper side via a fold line. The left half cover plate and right half cover plate are connected in series, and the left half cover plate and the right half cover plate are formed with folding lines for folding in half, and each web corner is folded outward. By sticking to the outside of the side plate in the state After the shape, the flaps on the upper side of the front and rear plates are folded inward, and the lid is covered with the left and right half covers from above. In the folded state, the left and right half lid plates are folded inward, and the tip is inserted into the gap between the left and right sides of the flap to lock it to the side of the flap. The left half lid plate and the right half lid plate which are folded in half are used as vertical handles.

  The web corner type paper container having the above structure has a cut at the center of the front end of the flap on the upper side of the front side plate and the rear side plate and a notch at both the left and right sides. Insertion pieces for locking are connected to the end of the lid plate via a fold line, and the left half lid plate and the right half lid plate are folded inward so that the insertion pieces face each other. By inserting the inserted piece into the flap cut, the flap is cut to lock the plug into the cut, and the left half lid plate and right half lid plate are folded inward and folded at the tip. By inserting the insertion piece into the gap between the left and right ends of the flap, it can be configured to be locked to the side portion of the flap.

In addition, the web corner type paper container having the above-described configuration is formed with a meshing portion of the left half lid plate and the right half lid plate that are in mesh with each other, and the left half lid plate and the right half lid plate are folded inward. Caps are engaged by engaging the meshing parts at their tips, and the left and right half lids are folded inward, and the meshing parts at the tips are inserted into the gaps on the left and right sides of the flap. Thus, it can be configured to be locked to the side portion of the flap.

When the web corner type paper container of the present invention is assembled during cooking, the left half lid plate and the right half lid plate which are folded in half serve as vertical handles, and have portions where heat in this container is not directly transmitted. Because it can be taken in and out of the microwave oven, the cooked container can be taken out of the cabinet with peace of mind. In addition, the left and right half lid plates, which are folded in half, stop the flaps from floating The steaming effect required for cooking is not impaired.

It is a perspective view which shows an example of the web corner type | mold paper container which concerns on this invention. It is an expanded view of the blank which assembles the web corner type | mold paper container of FIG. It is explanatory drawing which shows the state in the middle of assembling a web corner type | mold paper container from the blank of FIG. It is explanatory drawing shown in the state at the time of use the web corner type | mold paper container which assembled the blank of FIG. It is a perspective view which shows the modification of the web corner type | mold paper container which concerns on this invention. It is an expanded view of the blank which assembles the web corner type | mold paper container of FIG. It is explanatory drawing which shows the state in the middle of assembling a web corner type | mold paper container from the blank of FIG. It is explanatory drawing shown in the state at the time of use the web corner type | mold paper container which assembled the blank of FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a web corner paper container according to the present invention, and this web corner paper container is formed by assembling a blank shown in FIG.

  The blank in FIG. 2 is a paperboard with a resin film bonded to the entire surface, and is made by punching out a material that has been subjected to predetermined printing in a multi-faceted state. A front side plate 2, a rear side plate 3, a left side plate 4 and a right side plate 5 are connected to the rectangular bottom plate 1 in front, rear, left and right via folding lines a to d, respectively. Are connected to each other via a fold line f of radiation extending outward from the corner of the bottom plate, and a web corner. Part W is formed.

  The front side plate 2 and the rear side plate 3 are provided with flaps 6 and 7 connected to the upper sides of the front side plate 2 and the rear side plate 3 via a fold line g, and the flaps 6 and 7 are formed with cuts 6a and 7a at the center of the tip. In addition, notches 6b and 7b are formed at the left and right ends. A left half lid plate 8 and a right half lid plate 9 are connected to the left side plate 4 and the right side plate 5 via a fold line h on the upper side thereof, and the left half lid plate 8 and the right half lid plate 9 are connected to each other. Is formed with a folding line i for folding in half, and the left half lid plate 8 and the right half lid plate 9 are respectively connected to the leading ends of the left half lid plate 8 and the right half lid plate 9 via the folding line j. It is installed. In this example, the bases of the cuts 6a and 7a provided at the center of the tip of the flaps 6 and 7 are narrowed, and V-shaped cutouts are formed at the bases of the insertion pieces 8a and 9a. In addition, an oblique fold line k is provided at the tip corners of the left half cover plate 8 and the right half cover plate 9 in order to make it easy to pick the part.

  Moreover, in this blank, three longitudinal ruled lines are formed in the middle of the front side plate 2 and the rear side plate 3 to prevent bending. The fold lines a to k may be basically formed by pushing rules, but the fold lines g of the flaps 6 and 7, the fold lines h of the left half cover plate 8 and the right half cover plate 9, and the left half Regarding the fold line i for folding the cover plate 8 and the right half cover plate 9 in two, and the fold line j of the insertion pieces 8a and 9a, 1) A so-called lead ruled with a notch in the middle of the ruled line, 2) a perforation with a large pitch, 3) a perforation with a small pitch, or the like may be employed as appropriate.

  To assemble the blank shown in FIG. 2, first, the side plates 2 to 5 are erected with respect to the bottom plate 1, and at the same time, the folded pieces 2a to 5a are pulled out and folded to form the web corner portion W. A box shape as shown in FIG. 3 is obtained by pasting the web corner portion W on the outside of the left side plate 4 and the right side plate 5 in a folded state. In the state where the main body is assembled in this way, the upper opening is in a state of being slightly curved outward and expanded due to the repulsive force against the bending of the paperboard. Then, a plurality of assembled products shown in FIG. 3 are stacked and supplied to the filling process.

  In the filling step, the contents shown in FIG. 3 are poured from above, the flaps 6 and 7 on the upper sides of the front plate 2 and the rear plate 3 are bent inward, and then the left half lid plate 8 and the right The half cover plate 9 is bent inward so that the insertion pieces 8a and 9a are opposed to each other, and the opposed insertion pieces are inserted into the cuts 6a and 7a of the flaps 6 and 7, so that the cuts 6a and 6a of the flaps 6 and 7 are obtained. The insertion pieces 8a and 9a are engaged with 7a and covered with the left half lid plate 8 and the right half lid plate 9 as shown in FIG.

  The web corner paper container of FIG. 1 is finally commercialized with a shrink film as needed. The contents include foods and seasonings that are cooked by a microwave oven, and those containing these are sold as products at the store.

  When cooking with a microwave oven, the left half lid plate 8 and the right half lid plate 9 are opened like a double door, and the seasoning and ingredients inside are taken out. At this time, the left half lid plate 8 and the right half lid plate 9 are provided with a diagonal fold line k at the tip corner. The insertion pieces 8a, 9a at the tip of the plate 9 can be easily opened by removing them from the cuts 6a, 7a of the small flaps 6, 7.

  After putting the seasoning taken out into the container together with ingredients (if the seasoning is stored alone, prepare the ingredients separately), fold the flaps 6 and 7 inward, as shown in FIG. The half lid plate 8 and the right half lid plate 9 are folded inward at the fold line i, and the insertion pieces 8a and 9a at the leading ends thereof are inserted into the gaps formed by the notches 6b and 7b at the left and right ends of the flaps 6 and 7, respectively. To engage the sides of the flaps 6,7. In this way, by lifting the ends of the left half lid plate 8 and the right half lid plate 9 folded on the sides of the flaps 6 and 7, the flaps 6 and 7 are prevented from being lifted, The left half lid plate 8 and the right half lid plate 9 serve as handles.

  The web corner type paper container of FIG. 1 is put into a microwave oven and cooked by heating after the use state shown in FIG. At this time, since the height of the entire container is low, it is easy to put it in and out. And when steam is generated by cooking, the left half lid plate 8 and the right half lid plate 9 in a folded state suppress the floating of the flaps 6 and 7, so that the steaming effect required for the range container is not impaired. . Furthermore, since the left half lid plate 8 and the right half lid plate 9 which are folded in half after cooking are used as handles, it can be taken out of the cabinet with a sense of security by having a portion where this heat is not directly transmitted.

  FIG. 5 is a perspective view showing a modified example of the web corner type paper container according to the present invention, and this web corner type paper container is formed by assembling a blank whose development is shown in FIG. Since the blank shown in FIG. 6 has substantially the same shape as the blank of FIG. 2, the same reference numerals are given to portions having the same configuration, and description thereof is omitted.

  The web corner type paper container of FIG. 5 is obtained by changing the locking means of the left half lid plate 8 and the right half lid plate 9 in the web corner type paper container shown in FIG. That is, in the blank of FIG. 6, engagement portions 8 b and 9 b are formed at the distal ends of the left half lid plate 8 and the right half lid plate 9, instead of the insertion pieces 8 a and 9 a, which are in mesh with each other. With the deformation of the left half lid plate 8 and the right half lid plate 9, the cuts 6a and 7a of the flaps 6 and 7 are eliminated. Further, the oblique folding line k at the tip corners of the left half lid plate 8 and the right half lid plate 9 is also eliminated.

The blank shown in FIG. 6 is assembled in the same manner as the blank shown in FIG. 2, and the web corner portion W is formed by the same procedure, and the web corner portion W is folded to the outside of the left side plate 4 and the right side plate 5. By bonding, a box shape as shown in FIG. 7 is obtained. Then, a plurality of assembled products shown in FIG. 7 are stacked and supplied to the filling process.

  In the filling step, the contents shown in FIG. 7 are poured from above, and the flaps 6 and 7 on the upper sides of the front side plate 2 and the rear side plate 3 are bent inward. The half lid plate 9 is bent inward, and the meshing portions 8b and 9b are engaged with each other to cover the left half lid plate 8 and the right half lid plate 9 as shown in FIG.

  When cooking with a microwave oven, the left half lid plate 8 and the right half lid plate 9 are opened like a double door, and the seasoning and ingredients inside are taken out. At this time, by pulling the left half lid plate 8 and the right half lid plate 9 in the opposite directions, the engagement portions 8b and 9b at their tips can be disengaged and easily opened.

  After taking out the seasonings etc. taken out with the ingredients (If the seasonings are only stored, prepare the ingredients separately) and then folding the flaps 6 and 7 inward, as shown in FIG. The half lid plate 8 and the right half lid plate 9 are folded inward at the fold line i, and the engaging portions 8b and 9b at the tip thereof are inserted into the gaps formed by the notches 6b and 7b at the left and right ends of the flaps 6 and 7, respectively. Lock to the sides of the flaps 6,7. In this way, by lifting the ends of the left half lid plate 8 and the right half lid plate 9 folded on the sides of the flaps 6 and 7, the flaps 6 and 7 are prevented from being lifted, The left half lid plate 8 and the right half lid plate 9 serve as handles.

  The web corner type paper container of FIG. 5 is put into a microwave oven and cooked by heating after the use state shown in FIG. At this time, as described above, since the height of the entire container is low, it is easy to put it in and out. And when steam is generated by cooking, the left half lid plate 8 and the right half lid plate 9 in a folded state suppress the floating of the flaps 6 and 7, so that the steaming effect required for the range container is not impaired. . Furthermore, since the left half lid plate 8 and the right half lid plate 9 which are folded in half after cooking are used as handles, it can be taken out of the cabinet with a sense of security by having a portion where this heat is not directly transmitted.

  As mentioned above, the embodiment of the present invention has been described in detail by giving two examples. However, the web corner type paper container according to the present invention is not limited to the above embodiment, and the gist of the present invention is described. Naturally, various changes can be made without departing from the scope.

  For example, in the above example, a paperboard with a resin film bonded to the entire surface was used as the material of the container. However, a resin such as polypropylene, polyethylene, polyethylene terephthalate, polybutylene terephthalate, or the like, may be used for paperboard paperboard. A paperboard appropriately laminated with a film may be used. Further, instead of paperboard, corrugated cardboard sheets with fine corrugations (microflutes) can be used.

  In the above example, the overall shape of the container is rectangular, and the web corner portion is bonded to the short side. However, the overall shape may be a square as long as it is rectangular, or the web corner portion. As for, it is only necessary to determine which of the short side and the long side is bonded according to the container design.

  The web corner paper container of the present invention is preferably used to contain food for cooking in a microwave oven. And in addition to the type of products that are taken out of the bag and cooked in the bag, only the seasoning is put in, and the type of product that is cooked together with ingredients such as eggs, tofu and meat prepared separately Also suitable.

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Front side plate 2a Folding piece 3 Rear side plate 3a Folding piece 4 Left side plate 4a Folding piece 5 Right side plate 5a Folding piece 6,7 Flap 6a, 7a Cut 8 Left half lid plate 8a Insert piece 8b Engagement part 9 Right half lid plate 9a Insertion piece 9b Engagement part W Web corner part a ~ k Folding line

Claims (3)

Front side plate, rear side plate, left side plate, and right side plate are connected to the front, rear, left, and right sides of the rectangular bottom plate through fold lines, and each side plate has a triangular shape with fold lines on both sides. Are connected to each other via radial fold lines extending outward from the corners of the bottom plate to form a web corner, and the front plate and the rear plate are connected to each other. Each of the left side plate and the right side plate has a left half lid plate and a right half lid plate connected to each other via a fold line. The left half lid plate and right half lid plate are formed with fold lines for folding in half, and each web corner is folded to the outside and pasted to the outside of the side plate to form a box shape, then the front side plate Fold the flap on the top side of the rear plate inward It is structured to bend and cover the left half lid plate and right half lid plate from above, and in use, the left half lid plate and the right half lid plate are placed inside with the flap folded inside. The left half lid plate and the right half lid are folded in half and stopped in a folded state by folding it in half and inserting the tip into the gap between the left and right sides of the flap to lock it to the side of the flap. A web corner type paper container characterized in that the board has a vertical handle.   A notch is formed in the center of the front end of the flap on the upper side of the front side plate and the rear side plate, and a notch is formed in both the left and right ends. Insertion pieces for locking are connected to each other. The left and right half lid plates are folded inward so that the insertion pieces face each other, and the opposed insertion pieces are inserted into the flap cuts. The flap is cut into the flap and the lid is closed, the left and right half lids are folded inward, and the inserts at the tip are inserted into the gaps at the left and right ends of the flap. 2. The web corner type paper container according to claim 1, wherein the web corner type paper container is engaged with a side portion of the flap by being inserted. Engagement parts that mesh with each other are formed at the tips of the left and right half lid plates, and the left and right half lid plates are folded inward to engage the meshing portions at the tips. The left half lid plate and the right half lid plate are folded inward, and the engagement portion at the tip is inserted into the gap between the left and right sides of the flap so that it is locked to the side of the flap. The web corner type paper container according to claim 1, wherein

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