JP2017039550A - Perforation structure and packaging container with lid using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a perforated structure that is less likely to touch a cut portion during use and improves the feeling of use, and a lidded packaging container using the perforated structure. A separation perforation 16 is formed by a plurality of openings 21 formed at a predetermined interval at a boundary between an individual food container 11 (use prerequisite area) and an individual flange 14 (removal area). It is comprised by the waveform shape which makes 11 side the bottom. The part to be cut 22 of the separation perforation 16 is formed at the bottom of the corrugated shape indicated by the broken line in (1). When the cut portion 22 is cut, as shown in (2), a sharp burr 23 directed outward is generated in the cut portion 22 on the individual food container 11 side. However, since the part to be cut 22 is formed at the bottom of the corrugated shape, the cut portion remaining in the use prerequisite region by cutting is located closer to the individual food container 11 side than the straight line indicated by the two-dot chain line in (1). To do. Therefore, it becomes difficult to touch the cut portion during use, and the usability is improved. [Selection] Figure 3

Description

  The present invention relates to a perforation structure and a packaging container with a lid using the perforated structure, and more particularly to a perforation structure used for separating a removal area from a use premise area and a packaging container with a lid using the perforation structure.

  FIG. 8 is a perspective view of a food container that is one of the conventional perforated structures as shown in Patent Document 1. As shown in FIG.

Referring to the figure, a food storage container 70 is made of a soft synthetic resin sheet, and has four inverted frustoconical individual containers 71 (use prerequisite areas) open at the top, and openings of the individual food containers 71. The flange 73 extends outward from the edge 72 and integrally connects the opening edges 72 of the individual edible containers 71. A split perforation 75 for dividing the flange 73 into individual flanges 74 (removal regions) for the individual food containers 71 is formed in the flanges 73 between the individual food containers 71. Further, in order to separate the individual food container 71 from the individual flange 74, the individual flange 74 has a separation perforation 76 disposed at the periphery of each opening edge 72 of the individual food container 71, and one end portion is a separation sewing machine. An auxiliary perforation 77 connected to the eye 76 and extending at the other end to the outer edge of the individual flange 74 is formed.
In use, first, the split perforation 75 is cut and the flange 73 is divided for each individual flange 74 corresponding to the individual edible container 71 to be used, and then the auxiliary perforation 77 is cut and then the separation perforation is continued. The individual edible container 71 is separated from the individual flange 74 by cutting 76.

JP 2003-252371 A

  The conventional perforated structure as described above may cause a problem after cutting.

  FIG. 9 is an enlarged schematic plan view showing before and after the separation perforation at the “Y” portion shown in FIG. 8. FIG. 10 is a diagram showing the individual food container after separation shown in FIG. 8 filled with food. It is an expansion perspective view of a state.

  First, referring to (1) of FIG. 9, the separation perforation 76 is constituted by a plurality of openings 81 formed at a predetermined interval D. The separation perforations 76 are cut by cutting the cut portions 82 located between the respective openings 81.

  Next, referring to (2) of FIG. 9, the separation perforations 76 are cut by pulling the individual flange 74 outward with respect to the individual edible container 71. Then, at the time of cutting, sharp burrs 83 directed outward are generated in each of the cut portions 82 on the individual food container 71 side.

  Then, referring to FIG. 10, when the individual food container 71 is used, the above-described burrs 83 are generated at a plurality of locations on the outer periphery.

  As a result, the conventional perforated structure has a poor feeling of use, such as a hand touching or being caught by a burr during use.

  The present invention has been made to solve the above-described problems, and provides a perforated structure and a packaging container with a lid using the perforated structure that makes it difficult to touch a cut portion during use and improves the feeling of use. With the goal.

  In order to achieve the above object, the invention according to claim 1 is a perforation structure having a perforation formed at a boundary between a use premise region and a removal region, wherein the perforation is formed. Comprising at least two openings formed at intervals, and a cut portion positioned between each of the openings, the cut portion being one of the edges constituting each of the openings. Thus, it is located on the use premise region side from a straight line contacting each of the lines constituting the specific edge on the use premise region side.

  If comprised in this way, the cutting location which remained in the use premise area | region by cutting will be located in an inward side with respect to a straight line.

  According to a second aspect of the invention, in the configuration of the first aspect of the invention, the perforation is formed in a corrugated shape, and the cut portion is formed in the bottom portion of the perforation.

  If comprised in this way, the outward side of the opening part after a cutting | disconnection will become a curve shape.

  According to a third aspect of the invention, in the configuration of the second aspect of the invention, the waveform shape is set such that the period is set to 4 to 8 mm and the radius of curvature is set to 1 to 1.5 mm.

  If comprised in this way, it will be hard to touch a to-be-cut | disconnected part after a cutting | disconnection.

  According to a fourth aspect of the present invention, in the configuration of the invention according to any one of the first to third aspects, the length of the part to be cut is set to 1 to 1.2 mm.

  If comprised in this way, it will become easy to cut | disconnect a to-be-cut | disconnected part and it will be hard to produce a sharp burr | flash.

  The invention according to claim 5 is a packaging container with a lid, which is made of a synthetic resin and has a container body that is open at the top, and a lid that is made of synthetic resin and that can be freely opened and closed to the container body via a hinge portion. A first tab extending outward from the upper edge of the container body, and extending outward from the lower edge of the lid body, the first tab when being fitted to the container body. And a second tab at least partially overlapping the first tab. The first tab comprises the first perforated structure according to any one of claims 1 to 4, and the second tab. The tab is composed of the second perforation structure according to any one of claims 1 to 4, and the first perforation structure of the first perforation structure and the second perforation structure of the second perforation structure. At least a part of the first removal region of the first tab and the second tab are arranged so as to overlap with the perforation. And at least a portion of the second removal area is intended to be integrated is welded.

  If comprised in this way, if a 1st perforation and a 2nd perforation are cut | disconnected together, a lid will become openable and each cutting part of a container main body and a lid will be located in an inward side.

  As described above, in the first aspect of the present invention, the cut portion remaining in the use premise region by cutting is located on the inner side with respect to the straight line. improves.

  In addition to the effect of the invention described in claim 1, the invention according to claim 2 has a curved shape on the outer side of the opening after cutting, so the outer periphery becomes smooth and the usability is further improved.

  In addition to the effect of the invention of claim 2, the invention described in claim 3 makes it difficult for the finger to touch the part to be cut after cutting. .

  In the invention according to claim 4, in the configuration of the invention according to any one of claims 1 to 3, the cut portion is easy to cut and sharp burrs are not easily generated. The feeling of use is synergistically improved.

  According to the fifth aspect of the present invention, when the first perforation and the second perforation are cut together, the lid can be opened and closed, and the cutting portions of the container body and the lid are positioned on the inner side. Therefore, the feeling of use of both the container main body and the lid body during use is improved.

It is a perspective view of the food storage container as a perforation structure body by the 1st Embodiment of this invention, Comprising: It is a figure corresponding to FIG. 8 of the conventional food storage container. FIG. 2 is an enlarged plan view of an “X” portion shown in FIG. 1. FIG. 10 is an enlarged schematic plan view showing before and after the separation perforation at the “X” portion shown in FIG. 1 and corresponding to FIG. 9 of a conventional food storage container. It is an expansion perspective view of the state which filled the food into the individual food container after separation shown in Drawing 1, and is a figure corresponding to Drawing 10 of the conventional food storage container. It is the top view which showed the closed state of the packaging container with a lid | cover by 2nd Embodiment of this invention. It is the top view which showed the open state of the packaging container with a lid | cover shown in FIG. FIG. 6 is a plan view showing a state in which the first separation perforation and the second separation perforation shown in FIG. 5 are cut. It is a perspective view of the food storage container which is one of the conventional perforation structures. FIG. 9 is an enlarged schematic plan view showing before and after the separation perforation at the “Y” portion shown in FIG. 8. It is an expansion perspective view of the state which filled the foodstuff into the individual food container after separation shown in FIG.

  FIG. 1 is a perspective view of a food storage container as a perforated structure according to the first embodiment of the present invention, and is a view corresponding to FIG. 8 of a conventional food storage container.

  Referring to the drawing, food container 10 made of a soft synthetic resin sheet has a separation perforation 16 formed at the boundary between individual flange 14 (removal area) and individual food container 11 (use prerequisite area). It has been replaced by a wave shape. The effect by having comprised in this way is mentioned later. In addition, since the component of the other food storage container 10 is the same as that by the conventional food storage container 70, description here is not repeated.

  FIG. 2 is an enlarged plan view of the “X” portion shown in FIG. 1, and FIG. 3 is an enlarged plan view schematically showing before and after cutting of the separation perforation in the “X” portion shown in FIG. FIG. 4 is a view corresponding to FIG. 9 of the conventional food storage container, and FIG. 4 is an enlarged perspective view of the individual food container after separation shown in FIG. It is a figure corresponding to FIG.

  First, referring to FIG. 2, the separation perforation 16 is formed in a corrugated shape with the individual food container 11 side as a bottom by a plurality of openings 21 formed at a predetermined interval D. The effect by having comprised in this way is mentioned later.

  A portion 22 to be cut of the separation perforation 16 is formed in a portion indicated by a broken line in (1) of FIG. That is, the part to be cut 22 is one of the edges constituting each of the openings 21 and is in contact with each of the lines constituting the specific edge on the individual food container 11 side, and is indicated by a two-dot chain line in the figure. It is located on the individual container 11 side from the straight line. The effect by having comprised in this way is mentioned later.

  Here, the predetermined interval D, that is, the length of the cut portion 22 is 1 mm. The period W of the waveform shape is set to 4 mm, and the radius of curvature R of the waveform shape is set to 1 mm. The effect by having comprised in this way is mentioned later.

  The separation perforation 16 is cut by referring to (1) and (2) of FIG. 3 and pulling the individual flange 14 outward with respect to the individual edible container 11 to cut the cut portion 22. Then, at the time of cutting, a sharp burr 23 directed outward is generated in the cut portion 22 on the individual food container 11 side.

  However, as described above, since the part 22 to be cut is positioned closer to the individual edible container 11 than the straight line indicated by the two-dot chain line in FIG. It is located in the individual container 11 side with respect to the two-dot chain line. Therefore, it becomes difficult to touch the cut portion during use, and the usability is improved. Moreover, since the outer side of the opening 21 after cutting has a curved shape, the outer periphery becomes smooth and the usability is improved.

  Furthermore, since the period W of the waveform shape, the radius of curvature R of the waveform shape, and the predetermined distance D are set as described above, it is difficult to touch the cut portion 22 after the cut carelessly. A feeling improves. Further, since the cut portion 22 is easily cut and sharp burrs 23 are not easily generated, the usability is improved synergistically with the position of the cut portion 22 described above.

  Finally, referring to FIG. 4, the individual edible container 11 becomes a container with excellent usability because the above-described burr 23 does not protrude to the outer periphery during use.

  FIG. 5 is a plan view showing the closed state of the lidded packaging container according to the second embodiment of the present invention, and FIG. 6 is a plan view showing the opened state of the lidded packaging container shown in FIG. FIG. 7 is a plan view showing a state where the first separation perforation and the second separation perforation shown in FIG. 5 are cut.

  Referring to these drawings, the packaging container 30 with a lid is formed by integrally forming a sheet of polyethylene terephthalate (PET) having a thickness of 0.35 mm, and the upper part is open. The upper rim 35 is a substantially regular octagonal container body 31 with a rounded corner, and the container body 31 is fitted to the container body 31 via a hinge portion 33 so as to be openable and closable, and the lower edge 36 is a plan view with a rounded corner. It consists of a substantially regular octagonal lid 32.

  The container main body 31 is formed with a first tab 41 extending outward from the upper edge 35 of the container main body 31 at a position facing the hinge portion 33, and the lid 32 extends outward from the lower edge 36 thereof. A second tab 42 is formed which overlaps with the first tab 41 when the container body 31 and the lid 32 are fitted together.

  A first separation perforation 51 is formed on the first tab 41 so as to span from the one end 43 to the other end 44 in the direction along the container body 31. Further, the second tab 42 is formed with a second separation perforation 52 that overlaps the first separation perforation 51 when the container body 31 and the lid 32 are fitted together. The first separation perforation 51 and the second separation perforation 52 are formed on an extension line of the lower edge 36 of the lid 32, and have a waveform shape with the container body 31 and the lid 32 as the bottom in plan view. It has become. That is, the first separation perforation 51 has a waveform shape in which a plurality of openings 61 formed at predetermined intervals form the bottom of the container body 31 and the cut portion 62 is formed on the bottom portion. Each of the second separation perforations 52 is formed into a corrugated shape in which a plurality of openings 65 formed at predetermined intervals form the bottom of the lid 32 and a cut portion 66 is formed at the bottom. Has been. The effect of having such a configuration will be described later. Here, the predetermined interval, that is, the length of the cut parts 62 and 66 is set to 1 mm, the period of the waveform shape is set to 4 mm, and the radius of curvature of the waveform shape is set to 1 mm.

  In using the packaging container 30 with a lid, first, referring to FIG. 5, the lid body 32 is fitted to the container body 31 with the contents in the container body 31, and the first separation perforation 51 and the first In the outer portion of the second separation perforation 52, the first tab 41 and the second tab 42 are welded by ultrasonic welding, and they are integrated into a closed state.

  When the contents are taken out from the container main body 31, if the first tab 41 and the second tab 42 are pulled outward with respect to the container main body 31 and the lid body 32, the first separation perforation 51 and the second tab Since the separation perforations 52 are formed so as to overlap as described above, they are cut together.

  Then, referring to FIG. 5 and FIG. 7, a welded portion (removal region) of the first tab 41 and the second tab 42 along with the cutting of the first separation perforation 51 and the second separation perforation 52. Is separated and removed from the first tab 41 and the second tab 42 (precondition for use) in the inner portions of the first separation perforation 51 and the second separation perforation 52, so that the lid 32 is opened and closed. Is possible. In addition, since the cut portion 62 of the first separation perforation 51 and the cut portion 66 of the second separation perforation 52 are positioned as described above, the cutting portions of the container main body 31 and the lid 32 are provided. Is located on the container body 31 and the lid body 32 side, and the burrs 63 and 67 do not protrude from the outer periphery of the lidded packaging container 30. The lid 32 is opened and closed by picking the knurled knob 19.

  If comprised in this way, the closed state until the time of opening will be stabilized, the reliability of the packaging container 30 with a lid will improve, and the usability | use_condition of both the container main body 31 and the cover body 32 in use will improve.

  In each of the above embodiments, the length of the part to be cut that has been set to the specific length may be set to another length, but considering the shape and size of the fingertip, 1 It is preferable if it is set in a range of ˜1.2 mm.

  In each of the above embodiments, the period and the radius of curvature of the waveform shape set to the specific length may be set to other lengths, respectively, but the period is in the range of 4 to 8 mm. It is preferable that the radius of curvature is set in the range of 1 to 1.5 mm.

  Further, in each of the above embodiments, the cut portion is located at the bottom portion of the corrugated shape, but is one of the edges constituting each of the openings, and constitutes a specific edge on the use area side. What is necessary is just to be located in the use premise area side from the straight line which touches each of each line.

  Furthermore, in each of the above-described embodiments, the separation perforation has a corrugated shape, but the cut portion is one of the edges constituting each of the openings, and constitutes a specific edge on the use prerequisite region side. Any other shape may be used as long as the shape is located closer to the use premise region than the straight line in contact with each of the lines.

  Furthermore, in the first embodiment, the perforated structure is a food storage container. However, the perforated structure has a use prerequisite area and a removal area, and has a perforation formed at the boundary between them. Other articles may be used.

  Furthermore, in each of the above embodiments, the perforation structure has a use premise area and a removal area. However, when using any area, for example, if the area is determined according to the use frequency, good.

DESCRIPTION OF SYMBOLS 10 ... Food storage container 11 ... Individual food container 14 ... Individual flange 16 ... Separation perforation 21 ... Opening part 22 ... Cut part 30 ... Packaging container with a lid 31 ... Container body 32 ... Lid body 33 ... Hinge part 35 ... Upper edge 36 ... lower edge 41 ... first tab 42 ... second tab 51 ... first separation perforation 52 ... second separation perforation 61 ... opening 62 ... part to be cut 65 ... opening 66 ... part to be cut In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (5)

A perforation structure having a perforation formed at the boundary between the use premise region and the removal region,
At least two openings formed at intervals, constituting the perforation;
A cut portion positioned between each of the openings,
The to-be-cut portion is one of the edges constituting each of the openings, and is located on the use prerequisite area side from a straight line contacting each of the lines constituting the specific edge on the use prerequisite area side, Perforated structure.   The perforation structure according to claim 1, wherein the perforation is formed in a corrugated shape, and the cut portion is formed in a bottom portion of the perforation.   The perforated structure according to claim 2, wherein the corrugated shape has a period set to 4 to 8 mm and a curvature radius set to 1 to 1.5 mm.   The perforated structure according to any one of claims 1 to 3, wherein a length of the cut portion is set to 1 to 1.2 mm. A packaging container with a lid,
A container body made of a synthetic resin and having an open top;
It is made of a synthetic resin, and includes a lid that can be freely opened and closed via a hinge portion on the container body,
A first tab extending outward from an upper edge of the container body at a position facing the hinge portion;
A second tab extending outward from a lower edge of the lid, and a second tab at least partially overlapping with the first tab when mated with the container body;
The first tab comprises the first perforated structure according to any one of claims 1 to 4, and the second tab comprises the first perforation according to any one of claims 1 to 4. 2 perforated structures,
The first perforation structure of the first perforation structure and the second perforation of the second perforation structure are arranged so as to overlap, and at least the first removal region of the first tab A lidded packaging container in which a part and at least a part of a second removal region of the second tab are welded and integrated.

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