JP2008044650A - Dispensing container for food, etc., method of punching the dispensing container, and punching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a sharp angled part from being left on dispensing containers separated from one another. <P>SOLUTION: The dispensing container has a plurality of storage recesses 1, and can be separated apart along a separation line 3 formed on a connecting portion 2 connecting the storage recesses 1. At the starting end of the separation line 3, an incision 4 is so formed as to connect the outer peripheral edges 5 of both subcontainers across the separation line 3 to the separation line 3 through an arcuate or elliptical continuous curve. A punching method for the dispensing container includes the first step of forming a penetrating incision line of an almost V shape, which is made by arcs or elliptic arcs that come in contact with each other along a virtual outer peripheral line and a virtual separation line of the container, on a unit of the dispensing container having a plurality of storage recesses formed by vacuum or air pressure molding, using a Thomson cutter, and the second step of punching a mold using a punching cutter having a punching line shaped along the virtual outer peripheral line, crossing the incision line at the point where it is formed and having a noncutting portion between the crossing portions. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a subdivision container for foods, and more particularly to a structure of a separation line portion of a subdivision container that includes a plurality of food storage recesses and can be individually separated by a separation line, and is further subdivided by vacuum molding or the like The present invention relates to a method for punching a container into individual molded products and an apparatus therefor.

  In recent years, from the viewpoint of increasing the number of people living alone, the small number of households, and the convenience of preserving food, small containers that can be separated individually have been used for various foods such as confectionery, tofu, and frozen foods. Yes. As such a subdivided container, for example, as shown in Patent Document 1, it is provided with a plurality of storage recesses for storing food, and each adjacent storage recess is connected via a flat connecting portion, Is known in which a separation line composed of perforations or the like is formed in order to separate each storage recess. Such a subcontainer is convenient because it can be cut off as much as it is consumed and the rest can be stored as it is.

  In addition, this type of subdivided container is generally formed into individual containers by punching with a punching blade after a plurality of storage recesses of a desired shape are formed on a heat-treated synthetic resin sheet by vacuum or pressure forming. A molded product is obtained. Then, food is stored in each storage recess, and depending on the food, the opening is sealed and then packaged into a product.

Japanese Utility Model Publication No. 3-50714

  However, as shown in FIG. 4 (a), this type of conventional subdividing container simply forms a separation line (c) such as a perforation in a flat continuous part (b) that connects adjacent storage recesses (a). Therefore, as shown in FIG. 4 (b), a right-angled corner (d) is formed on the periphery of each connecting portion (b) separated from the separation line (c). In some cases, fingers or the like were hurt at the corner (d). In addition, there is a part in which a notch recess (e) as shown in FIG. 10C is formed at the start (and end) part of the separation line (c). As shown in FIG. 4D, an acute angle portion is left, and the risk of damaging fingers and the like has not been resolved.

  In view of such a situation, the present invention aims to provide a subdivided container in which a cut portion having a predetermined shape is formed at the start (end) of a separation line so that no acute angle portion remains. is there. In addition, since it is difficult to provide the cut portion with the predetermined shape by punching with a conventional cutting blade, a method of punching from a synthetic resin sheet while forming the cut portion after forming a container is also disclosed. Is. Furthermore, a punching device suitable for the punching method is also disclosed.

  In order to solve the above-mentioned problem, the present invention is a subdivided container that includes a plurality of food storage recesses, and that can be separated by a separation line provided in a continuous portion in which each storage recess is connected by a flange. At the start end (end), a means was adopted in which a cut portion having a shape in which the outer peripheral edges of the containers on both sides sandwiching the separation line and the separation line were connected by a continuous curve of an arc shape or an elliptic arc shape was employed.

  In addition, as a method for punching a sub-container having such a structure, an arc or an elliptical arc is formed along a virtual outer peripheral line and a virtual separation line of the sub-container in which a plurality of storage recesses are formed by vacuum or pressure forming. A first step in which a cutting line having a substantially V shape in contact with each other is penetrated by a Thomson blade, and intersects the cutting line at the portion where the cutting line is provided along the virtual outer peripheral line, and A means of forming a punching method was adopted from the second step of punching a molded product with a punching blade having a punching line having a shape in which a non-cut portion was provided in between.

  In the first step, the cutting line is provided by a Thomson blade, and at the same time, a separation line made of a perforation is provided at the virtual separation line.

  Furthermore, as a punching device that realizes the punching method, a cutting device provided with a Thomson blade that penetrates a cutting line in which an arc or an elliptical arc is in contact with each other along a virtual outer peripheral line and a virtual separation line of the container. A punching machine provided with a punching blade that has a punching line along the imaginary outer circumferential line and intersects the cutting line at the part where the cutting line is provided, and a non-cutting part is provided between the crossing parts. Adopted the means of continuously installing the machine.

  In the sub-container with the above configuration, the cut portion provided at the starting end of the separation line is configured by an arc-shaped continuous curve, so that when the containers are separated by the separation line, no sharp portion remains at the corner. It was possible to surely prevent hurting fingers and the like.

  In addition, when punching out a small container from a synthetic resin sheet obtained by vacuum molding or the like of each individual container, in advance, using a Thomson blade in the first step, the arc or elliptical arc is in contact with each other and penetrates a cut line that is substantially V-shaped. In addition, in the second step, since the non-cut portion is provided so that the cut portion remains, it is punched along the outer peripheral line, so that it is possible to punch a molded product having the cut portion of the above shape which has been difficult in the past. It has become possible. Furthermore, at that time, since the triangular tongue piece formed by the cut portion is connected by the non-cutting portion, the tongue piece can be punched without falling off, so that the tongue piece is mixed into food or the like. Can be prevented.

  In addition, when the cut line and the separation line are provided at the same time in the first step, the cut part and the separation line are surely continuous, so that the separation is easy and the corner after the separation has a smooth continuous curve. Come to compose.

  Furthermore, the punching device having the above configuration can easily provide a subdivided container having a predetermined-shaped cut portion in a simple process.

  Hereinafter, a preferred embodiment of a sub-container according to the present invention will be described with reference to the drawings. Fig.1 (a) is a perspective view of a subdivision container, The same figure (b) is explanatory drawing of the shape of the connection part at the time of isolate | separating with a separation line.

  In FIG. 1, 1, 1 is a storage recess for storing foods, 2 is an adjacent storage recess 1, 1 is a connecting portion that connects the opening edges of each other with a flat flange, and 3 is at the center of the connecting portion 2. The separation line formed by the perforation provided can be separated from the separation line 3 into the individual storage recesses 1 and 1. Reference numeral 4 denotes a notch provided at the start (end) portion of the separation line 3 in the flange-like outer peripheral edge 5 of the container. The cut portion 4 is formed in a shape in which the outer peripheral edge 5 on both sides of the separation line 3 and the intermediate separation line 3 are connected by an arc-shaped or elliptical arc-shaped continuous curve, respectively. In other words, arcs (elliptical arcs) face each other and have a substantially V-shape that touches a symmetrical shape. As a result, as shown in FIG. 5B, since the corner portion of the container separated by the separation line is constituted by only a continuous curve, there is no sharp portion left, and fingers and the like can be removed. It can be surely prevented from being damaged.

  Although FIG. 1 shows a configuration in which two storage recesses 1 and 1 are provided in series, the present invention is not limited to this, and the present invention can be applied to a configuration having storage recesses of n rows and m columns. In this case, the outer peripheral edge of the container is the same as the above example, but as for the portion where the intermediate separation lines intersect, adjacent separation lines are connected in an arc shape as shown in FIG. A similar effect can be obtained by providing a cut in a substantially cross shape.

  FIG. 4D is a plan view showing another embodiment, in which the separation line 3 of the container is provided at an angle rather than a right angle with respect to the outer peripheral edge 5. Even in such a case, the shape of the cut portion 4 is a shape in which the outer peripheral edge 5 and the separation line 3 are connected by arc-shaped or elliptical arc-shaped continuous curves having different curvature radii of rounding, and the cut portion 4 is inclined. The shape is substantially V-shaped. Also in this case, similarly to the above, each cut container is formed with a corner portion composed only of a curve, and there is no sharp portion, so that fingers and the like are not damaged.

  Next, the manufacturing method of the subdivision container which has the notch | incision of the said shape is demonstrated. This type of subdivided container is generally punched with a punching blade adapted to the outer peripheral shape of the unit container after molding a plurality of storage recesses of a desired shape by vacuum or pressure molding on a heat-treated synthetic resin sheet. Thus, molded products are obtained as individual containers. However, in the conventional punching process, when a punching blade made of a steel male blade and a female blade used in a punching machine is used, the shape of the cut portion as described above, that is, the circular arc is symmetrical. It was difficult to make the shape substantially V-shaped in contact with the shape (or asymmetric shape). Therefore, in the present invention, the following steps are adopted as a container punching method.

  The punching process will be described with reference to FIG. 2. In FIG. 2, (a) shows one unit of a subdivided container in which a plurality of storage recesses 11 are formed by vacuum or pressure forming, and there is a burr 12 on the periphery. And the part shown with the dotted line is the virtual outer periphery line 13 punched out as a subdivision container. Actually, since it is continuously formed on a long synthetic resin sheet, this one unit is continuously formed in the horizontal direction or the vertical direction in the figure. FIGS. 5B, 5C, and 5D are enlarged views of a portion (A) surrounded by an alternate long and short dash line in FIG. Reference numeral 14 denotes a virtual separation line.

  FIG. 2B shows the first step of punching, and in order to form a part of the cut portion 4, the arc is substantially symmetrical with the virtual outer circumferential line 13 and the virtual separation line 14 in contact with each other. This is a step of penetrating the cut line 15 having a shape. This incision line 15 can be provided by forming a Thomson blade which is easy to shape and relatively inexpensive and having the above shape and pressing it. At this time, if the separation line 16 made of a perforation is provided, the shape of the cut line and the separation line can be reliably and continuously configured, so that the separation becomes easy. It is possible to provide the separation line 16 in a separate process.

  Next, FIG. 10C shows the second step of punching. Here, as in the prior art, the subdividing container is punched out using a punching blade. However, the shape of the punching line 17 of the punching blade is basically the shape along the virtual outer peripheral line 13 in FIG. 1A, but in the portion where the cutting line 15 is provided, the left and right punching lines 17 and The cut lines 15 intersect each other, and a non-cut portion 18 is provided between the intersecting portions of the punching lines 17. The reason why the punch line 17 and the cut line 15 intersect is that the cut line 15 has an arc shape, so that when the position shift occurs, the punch line 17 and the cut line 15 are surely punched in consideration of the case where the punch line 17 cannot be punched. . Further, the non-cutting portion 18 is provided when the punching lines 17 from the left and right are continuously provided, and the substantially triangular tongue formed by the punching lines 17 and the cutting lines 15 falls off and is stored in the storage recess 11. This is because there is a possibility that it may be mixed in foods that are used, which is a sanitary problem. On the other hand, since the non-cutting portion 18 is provided, the substantially triangular tongue piece 19 remains connected to the burr 12, so there is no fear of the mixing. By such punching, a subdivided container having a cut portion as shown in FIG.

  Note that, as described above, the punching line 17 and the cutting line 15 intersect and are punched, and as can be seen from FIG. However, since the cut line 15 has an arc shape or an elliptical arc shape and the punching line 17 intersects in a direction close to the tangential direction, the angle formed by the corner portion is very large as compared with a right angle. The angle is not enough to actually hurt fingers and the like.

  In the punching operation of a molded product, by performing the first and second steps, a substantially V-shaped cut portion in which an arc (elliptical arc) is in contact with a symmetrical shape as shown in FIG. 4 can be obtained. Since the shape of the Thomson blade can be arbitrarily set, even when an asymmetric cut portion as shown in FIG. 1D is formed, it can be punched by the same method as described above.

  Next, an outline of a punching apparatus that realizes the punching method will be outlined together with the entire molding process shown in FIG. In FIG. 3, (a) is a heat treatment step, (b) is a molding step by vacuum or compressed air, (c) is a first step of punching, (d) is a second step of punching, from left to right in the figure. The work proceeds in this direction, but among these, the apparatus according to (c) and (d) becomes the punching apparatus of the present invention.

  In the thermal heat treatment step (a), reference numeral 21 denotes a heater, which raises the temperature of the synthetic resin sheet (S) as a raw material to a moldable softness. In the molding step (b), the flexible synthetic resin sheet is molded by vacuum or pressure molding with the male mold 22 or the female mold 23 to mold a plurality of storage recesses. After the forming step (b), the sheet is cut into one unit of a molded product of the subdivided container or a continuous sheet thereof by a cutting step (not shown).

  Next, in the first step (c) of punching, one unit of the molded product is held on the holding base 24, and the cutting machine 26 to which the Thomson blade 25 having the shape of the cutting line 15 is attached is lowered and pressed. The cut line 15 having the above shape is provided (see FIG. 2B). At this time, a separation line 16 composed of perforations or the like can be provided simultaneously. In the second step (d) of the punching continuous to the first step, the punching is performed by a punching machine 28 provided with a punching blade 27 having a shape of the punching wire 17 and consisting of a male blade 27a and a female blade 27b. The molded product is punched (see FIG. 2C). Thereby, the molded product (P) of the subdivided container having the cut portion 4 described above is completed.

(A) is a perspective view showing one embodiment of a sub-container according to the present invention, (b) is an explanatory diagram of the shape of a continuous portion when separated by a separation line, and (c) is a case where the separation lines intersect It is explanatory drawing of the shape of an incision. Moreover, (d) is a plan view of another embodiment, and shows a case where the separation line is provided with an inclination. (A) is a top view which shows one unit of the subdivision container which provided the several storage recessed part by shaping | molding, (b), (c), (d) shows the process of stamping (a) enclosed with the dashed-dotted line It is an enlarged view of the part. It is the schematic of the whole molding process of a container including a punching process, (c), (d) is the punching apparatus of this invention. It is explanatory drawing of separation by the separation line of the conventional subdivision container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage recessed part 2 Continuously provided part 3 Separation line 4 Cut part 5 Outer periphery 11 Storage recessed part 12 Burr 13 Virtual outer peripheral line 14 Virtual separation line 15 Cut line 16 Separation line 17 Punching line 18 Non-cutting part 19 Tongue piece 21 Heater 22 Male type 23 Female 24 Holding stand 25 Thomson blade 26 Cutting machine 27 Cutting blade 28 Punching machine

Claims (4)

  A subdivision container having a plurality of storage recesses for foods, each of which can be separated by a separation line provided in a continuous portion provided with a flange, with the separation line sandwiched between the start (end) of the separation line A subdivided container for foods or the like, characterized in that a cut portion having a shape in which the outer peripheral edges of the containers on both sides and the separation line are connected by a continuous curve in an arc shape or an elliptic arc shape is provided.   For one unit of a subdivided container in which a plurality of storage recesses are formed by vacuum or compressed air molding, along the virtual outer peripheral line and the virtual separation line of the container, a cut line in which an arc or an elliptical arc is in contact with each other to form a substantially V shape A first step penetrating with a Thomson blade, and a punching line having a shape along the imaginary outer peripheral line, intersecting the cut line at the portion where the cut line is provided, and providing a non-cut portion between the cross portions And a second step of punching a molded product with a punching blade having the above.   3. The method for punching a subdividing container according to claim 2, wherein in the first step, the cut line is penetrated by a Thomson blade, and at the same time, a separation line comprising perforations is provided in the virtual separation line.   A cutting machine provided with a Thomson blade that penetrates a cutting line that is substantially V-shaped by contacting arcs or elliptical arcs along the virtual outer circumference and virtual separation line of the container, and along the virtual outer circumference, It is characterized by continuously providing a punching machine provided with a punching blade having a punching line having a shape in which a cutting line is provided between the crossing parts and a non-cutting part is provided between the crossing parts at a part where the cutting line is provided. Sub-container punching device.

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