JP2010269845A - Tetrahedral package body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tetrahedral package body which is formed at a tetrahedral shape and can simply and surely open at a tearing-up state when opening a sealed package container and can utilize it as a container as it is when it is served for a meal after opening. <P>SOLUTION: An upper opening section is sealed by making end sections c, d of the upper opening section come in contact with each other on a bag material 2 which includes a bottom side ab and right and left side sides ac, bd and shows a rectangular shape on a plane, and a blocked section 3 arranged and crossed at right angles to a bottom side ab of the bag material 2 is formed. Thus, a tetrahedral container body 1 consists of a triangular bottom side face section A and a triangular upper side face section B which make the bottom side ab as one common side, and triangular right and left side face sections C, D which make the blocked section 3 as one common side. Further, an opening fracture tape 4 is pasted and arranged on an inner side face of the bag material 2 along an opening port 6 so as to form the opening port 6 which extends from end sections a, b of the bottom side ab to the end sections c, d of the upper opening section of the bag material 2 which are center sections of the blocked section 3. A handle 4A is connected with and formed at end sections a, b positions of the opening fracture tape 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement of a so-called tetra-shaped package formed as a tetrahedron (triangular pyramid) -shaped solid body by connecting a triangular thin film sheet material to other sheet materials by respective edges. The present invention relates to a four-sided package that can be easily opened as a container and used as a container as it is, as well as being displayed and sold in a packaged state in which such objects are three-dimensionally protected.

  Recently, supermarkets, convenience stores, etc. have provided various packed lunches and prepared foods, and these are usually for one serving, so individual purchases and meals by individual purchasers It is convenient because it is possible. Therefore, in order to allow individual packaging in the arranged state, a container is provided with a partition if necessary by a slightly hard thin film sheet material and combined with a container body molded into a predetermined shape. A lid and the like are prepared. Such a tare made of a three-dimensional container or the like of a predetermined shape is scheduled to be discarded as it is after the contents of the cooked food are eaten, but it is bulky to dispose of it as it is, and its processing is troublesome. .

  In order to eliminate these points, for example, a package made of a synthetic resin film as shown in Patent Document 1 has been proposed. The outline of this packaging body is an upper side opened by a packaging bag made of a rectangular thin film sheet material that is opened at one side of the upper part, and is closed by three sides of the right and left sides and the bottom part by heat sealing. By sealing the left and right side upper ends, which are the corners of the edge, together so as to be substantially orthogonal to the bottom, a total of four side surfaces having a triangular shape can be used for the other side surfaces at the respective edges. It is formed into a tetrahedron which is a so-called tetra-shape (triangular pyramid shape) formed continuously with the portion. Before sealing, a predetermined article to be packaged is stored in advance, and is sealed to be slightly higher than atmospheric pressure by filling with an appropriate amount of gas. By opening the forcibly tearing along the left and right side edges (sealing line formed by thermocompression bonding) starting from the central part at the edge, the packaged object before sealing is exposed as it is, It is also assumed that the container has a so-called boat shape that can be taken out.

  According to such a package, it is easy to handle it after it is sealed after storing the contents to be stored and displayed on the storefront, and the package material itself after opening is simply made of synthetic resin. By being a film, there are advantages such as easy disposal.

Japanese Patent No. 3997251

  In order to store and hold various items to be stored in the package according to Patent Document 1 described above and to open the package after sale, after purchase, etc., the starting end (starting point) of tearing at the time of opening is the bag material before packaging Since it is the both ends in the opening part at the time and is cut along the left and right edges of the bag material, it is necessary to give a sufficient tearing force to each of the starting ends. The tearing force applied at this time is obtained by pulling the left and right parts strongly in opposite directions so as to tear the seal closure part of the package to the left and right, and in any case, the tearing force is applied intensively to each of the starting ends. Can be torn smoothly.

  By the way, when storing and sealing work, after storing an article to be stored in a bag having a rectangular shape in a plane so as to form a three-dimensional package, a bent end at an opening of the bag In a state where the parts are spread and brought into contact with each other, the arrangement is orthogonal to the bottom, and the opening is sealed to seal it. However, if the two start end positions for tearing are not in contact with each other at the center position of the seal closing portion and are shifted in the left-right direction, the tearing force in the left-right direction is applied to each start end. There is a case where tearing and unsealing operations are not performed smoothly and the unsealing is difficult. For this reason, there has been a manufacturing problem such as the need for accurate alignment between the ends when the sealed object is sealed after storing the objects.

  Also, if the opening operation is not performed smoothly and it is necessary to use cutting tools such as cutters and scissors, it will be troublesome for openers, generally consumers and purchasers, Moreover, the defect as a product is suspected and a complaint is sent to the product provider.

  Therefore, the present invention was created in view of the conventional circumstances such as the above, for example, to store various items to be stored such as food, sealed as a tetrahedral packaging container, and displayed and sold, Also, to provide a four-sided package that can be easily and reliably opened in the form of a tear when it is opened after purchase, and can be used as a boat-shaped or bowl-shaped container as it is at the time of eating after opening. is there.

In order to solve the above-described problems, in the present invention, the end portions c and d of the upper opening portion of the bag material 2 having a bottom ab and left and right side ac and bd and having a rectangular shape in a plane are matched. By sealing the upper opening in contact with each other, a closed portion 3 is formed which is disposed orthogonally to the bottom side ab of the bag material 2, and a triangular bottom side surface portion A and upper side surface portion having the base side ab as a common side. B and a tetrahedral container body 1 composed of left and right side faces C and D having a common side of the closing part 3 and an opening 6 for opening the container body 1 are formed in the opening 6. It is characterized by comprising an opening break tape 4 that is adhered and arranged on the inner side surface of the bag material 2 along.
The opening break tape 4 has left and right side portions C, so as to form an opening 6 extending from the ends a, b of the bottom side ab to the ends c, d of the upper opening of the bag material 2 that is the central portion of the closing portion 3. It can be formed by adhering to the inner surface of D. Specifically, for example, one side edge of the opening break tape 4 is adhered and arranged along the right and left side ac, bd of the bag material 2 to be heat-sealed, and is picked at the ends a, b of the bottom side ab. 4A can be formed continuously with the opening break tape 4, and the reinforcing portion 7 can be formed at the end portions a and b so that the puller 4A can be pulled apart.
Further, the opening break tape 4 can be formed by adhering to the inner side surfaces of the left and right side surfaces C and D so as to form an opening 6 from the closed portion 3 to the bottom side ab. The breaking tape 4 can be arranged and formed along the left and right sides ac and bd of the bag material 2 or in parallel with a slight gap therebetween. At this time, it is possible to form the non-opening portion 5 in which a part of the bag material 2 itself is left unbroken so as not to reach the bottom side ab but to maintain a slight distance from the bottom side ab.
Further, the opening break tape 4 starts from a position shifted from the central portion of the closed portion 3 of the container body 1 to either one end side, and reaches the middle position of the bottom side ab through the left and right side portions C and D. Thus, it can be arranged and formed so as to be inclined with respect to the left and right sides ac and bd, and the distance between them gradually decreases.
Further, the unsealing break tape 4 can be formed by being continuously attached to the inner surface of each of the closing portion 3, the left and right side portions C and D, and the upper side portion B. From the closed portion 3 as the position, it passes through the inner surface of either the left or right side surface portion C or D, the upper side surface portion B, or the left or right side surface portion C or D, and again reaches the closed portion 3 as the end position. Or arranged in pairs on the left and right so that the predetermined position of the upper side surface B is the starting end, the left and right side surfaces C and D are passed through the inner surface, and the closed portion 3 is the end. Can be formed.

In the four-sided packaging body according to the present invention configured as described above, in the container body 1 hermetically packaged in a tetrahedron shape, the container body 1 is opened by the opening break tape 4 in the sealed-closed closed portion 3. In the breakage, the container body 1 is easily opened to form the opening 6, and the object M to be stored inside is taken out through the opening 6.
The opening break by the opening break tape 4 is made by pulling the opening break tape 4 by an opener so that the material of the container main body 1 is easily torn along the opening break opening tape 6 and the container main body 1 is surely broken and opened to open the opening 6. By forming, the stored object M is taken out.
When the container main body 1 is opened, the opening break tape 4 breaks and opens the container main body 1 from the bottom ab side by peeling off by the puller 4A at the positions a and b of the bottom ab, and the opening break tape 4 at this time is opened. Breaks the bag surface portion of the container main body 1 with the unsealing break tape 4 width along the heat-sealed left and right side ac, bd. Breaking of the container body 1 from the bottom side ab side of the opening break tape 4 gradually discharges the heating steam existing in the container body 1 when the container body 1 cooks the object M to be stored by, for example, a microwave oven, Consider safety for openers.
The breakage and opening are performed by dividing the container body 1 with the bottom side surface portion A as the bottom portion and opening it up and down to form a plate-like shape comprising the bottom side surface portion A and the lower left and right side surface portions C and D continuous therewith. The deformed container main body 1 is used, and the object M accommodated in the container main body 1 can be taken out, for example, eaten as it is. In the container body 1 thus deformed, the upper side surface B, and the upper left and right side surfaces C and D of the half cut continuous with this form a lid, or open in the left-right direction, and the bottom side ab of the container body 1 is defined as a common side. The bottom side surface portion A and the upper side surface portion B that are triangular shapes are boat-shaped dishes having a bottom surface portion.
The pulling handle 4A of the opening break tape 4 makes it easy to start breaking of the opening break tape 4, and the reinforcing portion 7 causes the container body 1 side to be pressed when the pulling operation is performed from the bottom side ab by the pulling handle 4A. Let it happen promptly.
Further, the unsealing by the unsealing break tape 4 from the closing portion 3 to the bottom side ab side is performed by opening the container body 1 in the left-right direction and the triangular bottom side surface part A and the upper side having the bottom side ab in the container body 1 as a common side. The container body 1 is deformed into a boat-shaped dish-like container having the side portions B as bottom portions. Further, the opening with the opening break tape 4 having the closed portion 3 as the start and end without opening the closed portion 3 and the bottom side ab side is performed on a container-shaped container having the bottom side surface A in the container body 1 as the bottom. The container body 1 is deformed.
Opening and breaking of the container body 1 with the opening and breaking tape 4 along the left and right sides ac and bd of the bag material 2 divides the closed part 3 into left and right parts, and also divides the left and right side parts C and D, and is symmetrical in the left and right. A typical boat-shaped container is formed.
In addition, the non-showing part 5 that does not divide the left and right side parts C and D by this opening break tape 4 forms a weir piece of a predetermined height at the center part when opened in a boat shape, To prevent leakage to the outside.
The unsealable breaking tape 4 that reaches the middle position of the bottom side ab while being inclined with respect to the left and right side ac and bd from the position shifted from the central part of the closing part 3 to either one end side becomes asymmetrical on the left and right. A liquid component that forms a boat-shaped vessel and has a weir piece that surrounds the periphery of either the bottom side surface A or the upper side surface B serving as the bottom surface of the vessel, and may leach out of the stored matter M Prevent leakage to the outside.
The unsealed breaking tape 4 arranged on the inner side surfaces of the upper side surface B, the left and right side surfaces C and D, and the closed portion 3 removes the upper portion of the tetrahedron-shaped container main body 1 and removes the bottom side surface portion. By leaving A and the upper side surface part B and the lower side parts C, D which are continuous to the periphery thereof, the container is surrounded by a container shape.

  Since the present invention is configured as described above, the tetrahedral container body 1 to be packaged in a state in which the article M is stored is easily and reliably opened by tearing with the opening break tape 4 to open the opening. 6 can be obtained, and has an advantage that it can be used as a vessel-shaped or vessel-shaped container as it is after opening. In particular, since it can be opened easily and reliably by the opening break tape 4, it is possible to strictly align the inner surfaces of the end portions c and d, which are the starting ends for tear opening at the upper opening of the bag material 2 in the conventional case. The necessary manufacturing problems can be solved, and the efficiency of the sealing work can be improved and the manufacturing cost can be greatly reduced.

  That is, in the present invention, the upper opening is formed in the closed portion 3 that is arranged orthogonally to the bottom ab by the bag material 2 having a bottom ab and left and right side ac, bd and having a rectangular shape in a plane. A container body 1 having a tetrahedral shape composed of a bottom side surface portion A, an upper side surface portion B, left and right side surface portions C, D, and an inner surface of the bag material 2 so as to form an opening 6 in the container body 1. This is because it comprises an opening breaking tape 4 to be arranged, whereby the opening of the opening 6 can be formed easily and reliably by opening the container body 1, and it can be transformed into a boat-shaped or vessel-shaped container after opening. To make it easier.

  The unsealing break tape 4 is attached to the inner side surfaces of the left and right side surfaces C and D so as to reach from the ends a and b of the bottom side ab to the ends c and d of the upper opening of the bag material 2 which is the central part of the closing portion 3. The container body 1 is formed so as to be broken and opened by the puller 4A at the positions of the ends a and b of the bottom side ab, so that the corner on the bottom side of the container body 1 starts from the corner. The container body 1 can be opened by breaking. Therefore, for example, when the object M in the container body 1 is cooked with a microwave oven or the like, rapid and large-scale discharge of the heated steam stored in the container body 1 is prevented, and gradually gradually. Heated steam can be discharged with a safety consideration for the unsealed person.

  In addition, the unsealed breaking tape 4 is forcibly peeled off by having one side edge adhered and arranged along the left and right side ac and bd of the bag material 2 to be heat sealed. Thus, the breaking opening is a straight opening along the right and left side ac, bd, and the opening operation can be made smoother.

  Furthermore, since the reinforcing portion 7 that allows the puller 4A to be separated is formed at the end portions a and b, when the opening break tape 4 is peeled off by the puller 4A to open the break, the container body 1 side is placed. It becomes a supporting part to be pressed down, and the opening operation is performed smoothly.

  A seal at the position of the closing portion 3 is obtained by positioning the opening end of the opening break tape 4 attached to the inner side surfaces of the left and right side portions C and D and the upper side portion B of the container body 1 on the inner side surface of the closing portion 3. The sealing force can also be made fragile. If it does so, it will be peeled and fractured | ruptured as the discharge path of the heating steam of the predetermined pressure which generate | occur | produces from the to-be-contained object M at the time of the cooking with the microwave oven with respect to the to-be-contained object M, and there also exists an advantage which enables cooking by the container main body 1 itself.

  Further, the opening break tape 4 is arranged in parallel with the left and right sides ac and bd of the bag material 2 so that the closing portion 3 is divided into left and right portions by the opening break of the container body 1 by the opening break tape 4. At the same time, the left and right side portions C and D of the container body 1 are also divided, and as a result, a symmetrical boat-shaped container can be easily formed on the left and right sides, and the object M in the container body 1 is completely exposed. Can be taken out.

  Even when the opening break tape 4 breaks, the broken portion does not reach the bottom side ab of the bag material 2, and a part of the bag material 2 itself remains unbroken so as to keep a slight distance from the bottom side ab. In the container obtained when the container body 1 is broken by forming the show part 5, the non-show part 5 is a weir piece having a predetermined height between the developed bottom side surface part A and upper side part B. Thus, for example, leakage of a liquid component that may be leached from the object to be stored M is prevented from being leaked to the outside and the surroundings are not soiled.

  Further, the opening / breaking tape 4 is arranged and formed so as to reach the middle position of the bottom side ab while being inclined with respect to the left and right side ac and bd from the position shifted from the central part in the closed part 3 to either one end side. By doing so, the container main body 1 can be divided by the unsealing break tape 4 to form a boat-shaped vessel that is asymmetrical on the left and right. As a result, on the other hand, the bottom surface portion of the container is continuously left on the upper side surface portion B or the bottom side surface portion A while remaining deeper than the other side. The part also serves as a weir piece that surrounds the surroundings, and helps prevent leakage of liquid components that may leach from the object M to the outside.

  In addition, the opening break tape 4 is continuously attached to the inner side of each of the closing part 3, the left and right side parts C and D, and the upper side part B, and is arranged so as not to reach the bottom side ab position. When the container main body 1 is opened with the opening break tape 4, the opening 6 is a case where the bottom side surface portion A of the container main body 1 is the bottom portion, and the upper portion of each of the upper side portion B and the left and right side portions C, D. Will be excised. Therefore, the periphery of the bottom side surface portion A presents a bowl-shaped container surrounded by the lower portions of the upper side surface portion B and the left and right side surface portions C, D, and the object to be stored M is, for example, a cooked product containing a liquid component. In some cases there is no risk of it leaking out.

  The upper end of the container body 1 with the bottom side surface A as the bottom is the top by setting the start end of the unsealing break tape 4 to a predetermined position of the upper side B and passing through the left and right side surfaces C and D to the closing portion 3. Since it can be excised from the side portion B side, the excision operation is easy, and it can be easily transformed into a vessel-shaped container whose upper edge is the opening 6.

  In addition, the code | symbol attached | subjected in each means of the means for solving said subject and the effect of invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to these descriptions, structures, shapes, and the like indicated by reference numerals and the like in the drawings.

1 shows an embodiment for carrying out the present invention, and is a perspective view in the first embodiment. It is a perspective view when opening similarly, The (a) is when opening from one side of a bottom edge part, (b) is when opening from the other of the bottom edge part further. It is a disassembled perspective view which shows arrangement | positioning of a bag surface part, an opening break tape, etc. when forming a bag material similarly. It is a principal part sectional drawing in a similarly unseal | breaking tape part. It is a perspective view in 2nd Embodiment for implementing this invention. It is a perspective view when similarly opened. It is a top view of the bag material similarly before sealed packaging. It is a perspective view in a 3rd embodiment similarly. It is a perspective view when similarly opened. It is a perspective view in a 4th embodiment similarly. It is a perspective view when similarly opened. It is a perspective view in a 5th embodiment similarly. It is a perspective view of other examples similarly in a 5th embodiment. Similarly, it is a partially cutaway perspective view in the sixth embodiment when an object to be stored is loaded together with a tray.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings is a substantially tetrahedral shape formed of a transparent synthetic resin film / sheet material having a predetermined thickness. (Triangular pyramid shape), that is, a container body formed so as to exhibit a tetra shape. The container body 1 itself is formed by a flat bag material 2 having a rectangular shape having a predetermined width and a predetermined height.

  In this bag material 2, the bottom side ab in the flat state and the left and right side ac and bd continuous thereto are closed by, for example, heat sealing, and only the upper side cd is opened to form an upper opening. (See FIGS. 3 and 7). Then, in the bag material 2 having a rectangular shape on this plane, the inner side surfaces of the ends c and d in the upper opening are brought into contact with each other so that the center positions e and f of the upper side cd are the ends. In addition, a container main body that is arranged and formed so as to be orthogonal to the bottom side ab and has a tetrahedral shape (triangular pyramid shape) by the closed portion 3 formed by sealing and closing with a predetermined width from the edge of the upper opening portion. 1 (see, for example, FIG. 1).

  In this container main body 1, a triangular bottom side surface portion A (abg) having the bottom side ab of the bag material 2 as one side, a triangular upper side surface portion B (abh) having the bottom side ab as a side, A tetrahedron having four faces, a triangular left side C (bhg) having the upper opening side ef or gh as one side, and a triangular right side D (ahg) having the upper opening side ef or gh as a side. (Triangular pyramid). Of course, the volume, height, etc. of the container main body 1 are sufficient to store, for example, the storage object M to be stored.

  Further, in order to open the container body 1 formed in a tetrahedron shape, the opening and breaking tape 4 made of a band material or a string material that breaks and separates the material of the bag material 2 is formed on the left and right side surfaces C, D, the upper side surface portion B, and the inner surface of the closing portion 3 are adhered and arranged. By opening the container main body 1 with the opening break tape 4, the container main body 1 itself is opened and deformed into a boat shape or vessel shape in which an opening 6 is formed. For this purpose, the opening break tape 4 is preliminarily pasted and arranged in a predetermined arrangement form on the inner surface of the bag surface portion of the bag material 2 before being formed as the container body 1. And either one edge part of the opening break tape 4 protrudes out of the container main body 1 to be a puller 4A that breaks and opens the container main body 1, and the both sides thereof start to break. A cut 4B serving as a tearing guide is formed in the bag material 2 itself so as to be smooth. In addition, this cut | interruption 4B itself is provided with the form which has interrupted | blocked without connecting the inside and outside of the container main body 1. FIG.

  In addition, as for the raw material itself of the bag material 2, it is desirable to form with the easily openable uniaxially stretched film which is easily fractured | ruptured along the breaking direction by this opening breakable tape 4. FIG.

  Although not shown, instead of the opening break tape 4, a break line for breaking the material of the bag material 2 should be formed parallel to the left and right side ac, bd or with a slight gap therebetween. Is also possible. This break line is formed by, for example, forming a cut or groove having a depth that reaches, for example, the middle of the thickness of the bag 2 material, and there is a forced external force applied along the break line. 2 is intended to break itself.

  In the first embodiment shown in FIG. 1 to FIG. 4, the opening break tape 4 has an end portion c of the upper opening portion of the bag material 2 that is the central portion of the closing portion 3 from the end portions a and b of the bottom side ab. , D so as to form an opening 6 to be adhered to the inner side surfaces of the left and right side surface parts C, D. Specifically, for example, one side edge of the unsealed breaking tape 4 is adhered and arranged along the left and right side ac, bd of the bag material 2 to be heat-sealed, and a knob-like puller is provided at the end portions a, b. 4A is continuously formed on the opening break tape 4.

  That is, as shown in FIG. 3, when the bag material 2 is formed by a pair of plane rectangular bag surface portions that are heat-sealed or the like at the bottom side ab and the left and right side ac and bd, respectively, It is arranged and formed by being attached to the inner side surface of the bag surface portion along the left and right side ac, bd in the bag surface portion. At this time, the reinforcing portion 7 is formed at the end portions a and b of the bottom side ab so that the pulling handle 4A connected to the opening break tape 4 so as to be located on the outer surface of the bag surface portion can be pulled apart. Further, the puller 4A portion can be formed by color identification, a protruding / bulging shape, a protruding portion shape or the like protruding outward from the container body 1 so that it can be clearly distinguished from other parts of the container body 1.

  In the second embodiment shown in FIG. 5 and FIG. 6, the opening break tape 4 is arranged by sticking the opening break tape 4 on the inner surface of the left and right side ac, bd in the bag material 2. The end of 4 is slightly out of the opening of the bag material 2 and serves as a handle 4A. Further, if necessary, in the vicinity of the end, which is the pull 4A of the opening break tape 4, a cut 4B is provided in the bag material 2 itself on both sides thereof, so that it is easier to cut when tearing by the pull 4A. It is good to be able to plan sex.

  The unsealing / breaking tape 4 itself is arranged along the bent portions of the left and right side ac and bd, but is arranged in a substantially parallel manner with a slight gap from the left and right side ac and bd. There is either one. Further, the opening / breaking tape 4 may be either one or a plurality along the left and right sides ac and bd. In short, the bag material 2 is formed by the puller 4A which is the starting end of the opening / breaking tape 4. As long as it is divided and opened.

  The breakage of the bag material 2 itself by the opening break tape 4 or the break line extends from the upper opening of the bag material 2 to the bottom ab position, and as described later, when opened, it is opened as a boat-shaped container. it can.

  Alternatively, as in the third embodiment shown in FIG. 8 and FIG. 9, at the time of break opening with the opening break tape 4 or the break line, the bottom edge ab is not reached, and a slight gap is maintained with the bottom edge ab. In addition, it is possible to form the non-showing part 5 in which a part of the bag material 2 itself remains without being broken. In this way, at the time of opening, the non-showing portion 5 remains without being broken, and becomes a weir piece having a predetermined height at the central portion when opened as a boat-shaped container, and leaches out from the object to be stored M which is, for example, food. It does not leak out some liquid components to the outside and does not pollute the surroundings.

  10 and 11 show a fourth embodiment, which is configured to exhibit a deformed boat shape at the time of breaking and opening. That is, as shown in FIGS. 8 and 9, the unsealing break tape 4 is at a position shifted from the central portion of the closed portion 3 toward the one end side when the bottom side surface portion A is placed as the bottom portion. For example, the top end is disposed at a position where the height ratio from the bottom is 4: 6, which is an upper position, straddles the boundary line with the upper side surface B through the left and right side surfaces C and D, and the upper side surface B The end is arranged at an inner position on the base ab through both side edges.

  In this case, the pre-arrangement of the opening break tape 4 with respect to the bag material 2 is such that, when the bag material 2 is viewed in a plane, the end portions c and d of the upper opening portion on either one side. It is possible to cope with the problem by arranging it so as to be inclined with respect to the left and right sides ac and bd so as to reach the middle position of the base ab from the inner side position so as to gradually narrow the mutual distance. Moreover, it is desirable that the bag material 2 is formed of an easily openable uniaxially stretched film as in the previous embodiment so that it can be easily broken along the opening break tape 4. In addition, the starting end structure at the time of opening in this opening break tape 4 is comprised similarly to the previous embodiment.

  By carrying out like this, in the container main body 1 after storing and sealing a predetermined object M in the bag material 2, when the container main body 1 is broken and opened by the opening break tape 4, it is opened into a boat shape as shown in FIG. In one half, for example, the object M is placed, and a deep-bottomed vessel-like body surrounding the periphery of the object M is displayed, and the other half has a shallow bottom that serves as a lid that covers the object M. It will be presented. In this way, by using a large and small container-like shape that has a substantially triangular shape on a plane in which the functions of the left and right halves are different at the time of opening, it is possible to select a usage mode according to the type of the object to be stored M or the like.

  FIGS. 12 and 13 show a fifth embodiment, and the unsealed breaking tape 4 in the fifth embodiment includes the closing portion 3, the left and right side portions C and D, and the upper side portion B, respectively. It is formed by adhering to the inner side. Specifically, for example, as shown in FIG. 12, the unsealed breaking tape 4 is one of the left and right side portions C and D, the upper side portion B, and the left and right side portions C and D from the closing portion 3 as the start position. On the other hand, it is continuously formed so as to reach the closing portion 3 as the terminal position again through each inner side surface. In this case, the end portion of the opening break tape 4 is disposed on each of the end portions c and d of the upper opening portion of the bag material 2 or the inner side surface in the vicinity of the end portions c and d of the bag material 2 at the closed portion 3 portion. However, there is no problem and it is sufficient that at least one of the ends becomes the handle 4A to break and open the container main body 1. In addition, it is desirable that the opening / breaking tape 4 itself is linear when the opening / breaking tape 4 is disposed and adhered to the inner side surface of the bag surface portion of the bag material 2. It may be divided into a plurality of pieces and continuously arranged such that their ends overlap.

  Alternatively, for example, as shown in FIG. 13, a predetermined position in the upper side surface portion B is set as a starting end, the left and right side portions C and D are passed through the inner side surfaces, and the closing portion 3 position is terminated at the left and right. Furthermore, it can be arranged and formed continuously at the terminal position. As shown in the drawing, for example, the vicinity of the substantially central portion of the upper side surface portion B is set as a starting end position, and at the starting end position, the end portions of the left and right unsealed breaking tapes 4 are overlapped, and a puller that is the overlapped starting end portion is shown. It is made to open by tearing sequentially from 4A.

  FIG. 14 shows a sixth embodiment in which a tray 10 on which the object to be stored M is placed when the object to be stored M is loaded into the bag material 2 as the container body 1. The form is shown. That is, a triangular bottom surface portion 11 that is not as large as the triangular bottom side surface portion A in the container body 1, and each side of the bottom surface portion 11, at least the charging tip side when charging into the bag material 2. Separately from the bag material 2, a tray 10 having a weir piece 12 that is erected by being bent continuously is prepared. Then, by inserting the object to be stored M placed on the tray 10 into the bag material 2 from the predetermined weir piece 12 side, the smoothness of the operation of inserting the object to be stored M, and after the charging and sealing, It is possible to protect the stored item M.

  The tray 10 is mainly planned to be made of a water- and oil-resistant paper piece, and further a water-absorbing and oil-absorbing non-woven fabric material. The bag material 2 may be formed into a tetrahedron shape from the inside after charging into the bag.

  Next, an example of the use of this will be described. In the bag material 2 in which a predetermined opening break tape 4 is preliminarily adhered and arranged on the inner surface, for example, a predetermined air pressure is sprayed and supplied to the upper opening. Keep open. And, if necessary, the tray 10 is used between the ends c and d of the upper opening portion of the bag material 2 in the opened state, and a predetermined storage object M such as various side dishes is loaded. Then, the inner side surfaces of the end portions c and d are brought into contact with each other, and the closed portion 3 substantially orthogonal to the bottom side ab is sealed and formed to be sealed as the container body 1. At the time of sealing, the portion of the pulling handle 4A which is the starting end of the unsealing break tape 4 is in a state where it is exposed to the ends a and b on the bottom side ab of the container body 1 (see FIG. 1) and out of the closed portion 3 (FIG. 5). , FIG. 8, FIG. 10, FIG. 12, FIG. 13, and FIG. 14).

  At the time of opening, the opening / breaking tape 4 itself is pulled by the puller 4A of the opening / breaking tape 4, the container body 1 is sequentially opened along this, and the opening 6 is formed along the opening site. In the first to fourth embodiments, the container body 1 itself opened by forming the opening 6 has a container shape in which the object to be stored M is exposed on the developed bottom side surface A. Furthermore, it exhibits a boat-like shape placed on the bottom side surface portion A and the upper side surface portion B by exposing the objects to be stored M (see FIGS. 6, 9, and 11). Alternatively, in the fifth embodiment, an upper portion when the bottom side surface A of the container main body 1 is used as a bottom is cut out to exhibit a vessel shape in which the periphery of the bottom side surface A is surrounded. In such an opened state, the stored object M may be transferred to another container if necessary, or the stored object M, for example, food may be fed.

  In addition, when cooking the to-be-contained object M which is a foodstuff with a microwave oven prior to opening, the heating vapor | steam generated in the container main body 1 has a sealing action slightly in the obstruction | occlusion part 3, for example by the opening break tape 4. However, it is possible to cause the steam to be discharged smoothly by peeling and rupturing the ruptured breaking tape portion 4 with internal pressure to become a steam discharge port.

DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Bag material 3 ... Closure part 4 ... Opening break tape 4A ... Puller 4B ... Cut 5 ... Non-opening part 6 ... Opening opening 7 ... Reinforcement part 10 ... Tray 11 ... Bottom part 12 ... Weir piece A ... bottom side surface part B ... upper side surface part C ... left side part D ... right side part M ... contained item ab ... bottom side of bag material cd ... upper side ac, bd of bag material ... left and right side side c, d ... end of bag material e, f: Central part of the upper side of the bag material

Claims (11)

  A closure that is arranged orthogonal to the bottom of the bag material by sealing the upper opening by contacting the ends of the upper opening in the bag material having a bottom and left and right sides and having a rectangular shape in a plane. A tetrahedral container main body comprising a triangular bottom side surface portion, an upper side surface portion, and a triangular left and right side surface portion having a common side as a closed side, and a container. A four-sided package comprising: an opening break tape that is attached to the inner surface of the bag material along the opening so as to form an opening for opening the main body.   2. The opening break tape is adhered and arranged on the inner side surfaces of the left and right side portions so as to form an opening from the end of the bottom side to the end of the upper opening of the bag material that is the central part of the closing portion. The four-sided package described in 1.   Claims wherein one side edge of the unsealing break tape is adhered and arranged along the left and right sides of the bag material to be heat sealed, and a knob-like handle is continuously formed on the unsealing break tape at the end position of the bottom side. Item 4. The four-sided package according to item 2.   The four-sided package according to claim 3, wherein a reinforcing portion is formed at an end portion of the bottom side so that a puller can be pulled apart.   The four-sided package according to claim 1, wherein the opening break tape is formed by adhering to the inner side surfaces of the left and right side portions so as to form an opening from the closed portion to the bottom.   The four-sided package according to claim 2 or 5, wherein the unsealed breaking tape is arranged and formed along the left and right sides of the bag material or in parallel with a slight gap therebetween.   7. The unsealable portion of the unsealed portion of the unsealed portion, wherein the unsealed portion remains unbroken so as to maintain a slight distance from the bottom side without reaching the bottom side. Four-sided package.   The opening break tape is slanted with respect to the left and right sides so that it starts from the center part of the closed part of the container body and moves to one of the ends, and reaches the middle of the bottom via the left and right side parts. The four-sided package according to claim 1, wherein the four-sided package is arranged and formed so that the interval between the two is gradually reduced.   The four-sided package according to claim 1, wherein the unsealing break tape is formed by adhering and arranging continuously on the inner side of each of the closing part, the left and right side parts, and the upper side part.   The unsealable tape continues from the closed part at the start position to the closed part at the end position via the inner side of either the left or right side part, the upper side part, or the left or right side part. The four-sided package according to claim 1, wherein the four-sided package is formed by sticking and arranging.   2. The unsealing and breaking tape is formed by adhering in a continuous manner in pairs on the left and right so that a predetermined position of the upper side surface portion is a starting end, and a closed portion position is terminated by passing through the inner side surfaces of the left and right side surface portions. The four-sided package described in 1.

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