JP4885255B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container in which a container body provided with an opening on an upper surface and a lid body that opens and closes the opening of the container body, and in particular, determines that the lid body has been tampered with. The present invention relates to a packaging container that can be used.

  In stores such as supermarkets and convenience stores, foods such as cut fruits and side dishes are housed and sold in packaging containers made of synthetic resin. Some packaging containers are a combination of a container main body having an opening on the upper surface and a lid that covers the opening of the container main body. Various types of packaging containers are also provided in which it is possible to determine that the lid has been illegally opened.

  For example, Patent Document 1 describes a packaging container that makes it difficult or impossible to reseal a lid once opened. As shown in FIG. 6, the packaging container is provided with a fixing portion 130 in which a concave portion 111 provided on the peripheral portion of the container body 110 and a convex portion 121 provided on the peripheral portion of the lid 120 are fitted, Two easy-cutting lines 122 and 123 for opening the lid 120 are provided on the lid 120 inside the fixing part 130, and a portion sandwiched between the two easy-cutting lines 122 and 123 is provided. It is characterized by having a peeling portion 124.

  In this packaging container, the container main body 110 and the lid 120 are securely fixed by the fixing portion 130, and the peeling portion 124 provided on the lid 120 is cut along the easy cutting lines 122 and 123 when the lid is opened. Thus, the lid can be easily opened. Further, when the lid 120 that has been opened is closed again, the easy-cut lines 122 and 123 are cut, so that it is clearly determined that the packaging container is once opened. be able to.

  Of the two easy-cut lines 122, 123, one 122 reaches the other side from one side of the lid 120, and the other 123 is provided halfway from one side to the other side. The peeled part 124 that remains after cutting remains in the lid 120 so that the peeled part 124 is not inadvertently mixed in the container or food, or scattered around.

  Patent Document 2 describes an unauthorized opening prevention container in which a trace is displayed on a lid that has been once opened. As shown in FIG. 7, the tamper-evident prevention container includes a body container 210 having a collar 211 at the upper edge of the opening and a lid body 220 having a ring groove 221 into which the collar 211 can be fitted and locked. A knob piece 222 is integrally projected from a part of the outer periphery of the ring concave groove 221 of the body 220.

  In this tamper-evident container, it is extremely difficult to remove the lid 220 from the body container 210 once the collar 211 is inserted into the ring groove 221, and by strongly pulling the knob piece 222 upward, The lid can be opened. That is, when the knob piece 222 is pulled, a part of the ring groove 221 is torn to form notches 223 and 223, and the inner diameter of the ring groove 221 is increased by the action of the notches 223 and 223. The lid 220 can be easily removed from the body container 210.

  And since this notch 223,223 is displayed as a trace when this lid 220 is closed again, it can be discriminate | determined that this tamper-evident prevention container was opened by this notch 223,223. .

JP 2007-55656 A Registered Utility Model No. 3114730

  In the packaging container described in Patent Document 1, one of the two easy-to-cut lines 122 and 123 reaches one side from the one side to the other side of the lid 120, and the other 123 extends from one side to the other side. In the case of the lid body 120 formed from a thin synthetic resin sheet, when the two easy cutting lines 122 and 123 are cut for opening, the peeling portion is provided. It is difficult to make the state where 124 is connected to the lid 120, and the other easy cutting line 123 is likely to be cut to the other side.

  Then, the packaging container not only becomes difficult to open when the lid 120 once opened is closed again, but also the peripheral portions of the container body 110 and the lid 120 overlap each other. The surface is reduced, and coupled with the fact that it is not fixed by the fixing portion 130, the fitting force between the two 120 and 110 decreases. Therefore, this packaging container has a problem that when the savory food is accommodated, the sap becomes easily leaked from the packaging container.

  Further, in the tamper-evident prevention container described in Patent Document 2, when the lid 220 is opened, notches 223 and 223 are formed in a part of the ring groove 221, and the inner diameter of the ring groove 221 increases. For this reason, when the lid 220 is closed again, the ring groove 221 and the collar 211 of the body container 210 are not fitted and locked. Therefore, this tamper-evident prevention container has a problem that the lid 220 that has been once opened cannot be closed again and used.

  In view of the above, an object of the present invention is to provide a packaging container that can not only determine that the cover has been opened illegally, but also can be used with the cover closed again.

  The packaging container according to the present invention is a packaging container comprising a container body provided with an opening on the upper surface, and a lid that opens and closes the opening. The container body includes a bottom and a bottom of the bottom. A main body peripheral wall portion provided upward from the outer periphery, a main body outer flange portion provided outward from the upper edge of the main body peripheral wall portion, and a rising portion provided upward from the outer periphery of the main body outer flange portion The main body peripheral wall portion is formed with a reverse taper portion inclined so as to increase in diameter from the inner end edge adjacent to the main body outer flange portion to the bottom side, and is formed on the rising portion. Has a notch at least at one location, and the lid body has a top portion, a lid peripheral wall portion provided downward from the outer periphery of the top portion, and an outer periphery from the lower end edge of the lid peripheral wall portion. The lid inner flange part installed, and upward from the outer periphery of the lid inner flange part An engaging portion that overlaps with the reverse taper portion of the container body, and is provided to surround outward from the upper edge of the engaging portion and overlaps with the outer flange portion of the main body, and the outer peripheral edge rises from the container body. A lid outer flange portion that is in contact with or close to the portion is integrally formed, and the lid outer flange portion is a knob that protrudes from a notch portion formed in the rising portion of the container body in the vicinity of a corner portion of one side. An easy-opening line is formed that is capable of tearing to the middle not reaching the other side adjacent to the knob, and the tear-preventing means is used to prevent tearing of the easy-opening line. And the other side.

  According to this packaging container, the lid is overlapped with the reverse taper portion of the container main body so that the lid is fitted and closed so as not to be detached from the container main body. The outer diameter of the lower end edge of the engaging portion of the lid is slightly larger than the inner diameter of the upper end edge of the reverse tapered portion, but the engaging portion of the lid is deformed by elastic deformation of the lid and the container body. It overlaps with the reverse taper portion of the container body, and therefore fits inside so as not to open easily. Further, the lid body in the closed state is difficult to open the lid by gripping the lid outer flange portion when the outer peripheral edge of the lid outer flange portion is in contact with or close to the rising portion of the container body.

  The closed lid is in a state in which a knob portion protruding from the outer flange portion protrudes from a notch portion formed in the rising portion of the container body. By picking up this knob, the easy-open line is torn. The easy-open line is not torn to the other side of the lid outer flange portion by the tear preventing means, and the knob is maintained in a state of being connected to the lid outer flange portion. Therefore, by further picking up the portion of the lid outer flange portion in the vicinity of the knob portion, this portion is lifted, and the lid can be opened from this portion as a starting point.

  And even if this easy-opening line is torn, this packaging container is fitted inside so that the engaging part of the lid overlaps the reverse taper part of the container body, and the lid outer flange part of the lid and the container The lid can be closed again so that the main body outer flange portion of the main body overlaps. Therefore, even if this packaging container accommodates savory food, the spillage is difficult to leak out. And since the outer side flange part is torn by the easy-opening line, it can discriminate | determine that the lid was once opened in the store. The easy-open line is formed by perforations, half cuts, or the like.

  In the packaging container according to the present invention, it is preferable that the tear preventing means has a plurality of grooves formed in a direction orthogonal to or intersecting with the easy-open line.

  According to this packaging container, the tear prevention means is formed by a number of grooves orthogonal to or intersecting the easy-open line, so that the structure for reinforcing the outer flange portion of the lid can also be used as the tear prevention means. it can. The numerous grooves are preferably formed by knurled eyes or flat knurled eyes, but may be twill knurled eyes.

  Further, in the packaging container according to the present invention, a main body inner flange portion that overlaps with the cover inner flange portion of the lid body is provided around the main body peripheral wall portion of the container main body inward from the lower end edge of the reverse taper portion. It is preferable that

  According to this packaging container, the lid body and the container main body not only overlap the lid outer flange portion of the lid body and the main body outer flange portion of the container body, and the engagement portion and the reverse taper portion overlap. By overlapping the lid inner flange portion of the lid body and the main body inner flange portion of the container main body, the sealing performance can be improved.

  Further, in the packaging container according to the present invention, the container main body is directed upward from the inner edge of the main body inner flange portion so as to stop the inner peripheral edge of the lid inner flange portion of the closed lid body. It is preferable that the protrusion part which protruded in is provided.

  According to this packaging container, since the protruding portion protrudes upward at the inner edge of the inner flange portion of the main body of the container body, the inner flange portion of the lid is sandwiched between the protruding portion of the container main body and the reverse tapered portion. Thus, the interval between the lid peripheral wall portions facing the lid is less likely to be narrowed, and therefore it is difficult to open the lid illegally.

  Further, in the packaging container according to the present invention, a hill portion is provided at a bottom portion of the container body, and a receiving frame portion for fitting the hill portion is provided at a top portion of the lid body. Is preferred.

  According to this packaging container, the hill portion is provided at the bottom of the container body, and the receiving frame portion that externally fits the hill portion is provided at the top of the lid, so that the packaging container is not easily collapsed. Can be. That is, even if a lateral external force is applied by fitting the receiving frame portion provided at the top of the stacked lower packaging container to the hill portion provided at the bottom of the upper packaging container, Since the upper and lower packaging containers are not displaced, they are unlikely to fall over.

  According to the present invention, the easy opening line that does not reach the other side adjacent to the knob portion formed near the corner of one side of the lid outer flange portion of the lid body is formed together with the tear preventing means, thereby opening the lid. In addition, when the lid is opened, the easy-opening line has an engagement portion, a lid outer flange portion, a reverse taper portion, and a body outer flange portion formed on the lid body and the container body, respectively. It is possible to provide a packaging container that can exhibit excellent sealing properties when the lid is closed again. In addition, the packaging container of the present invention can easily determine that the lid has been illegally opened.

It is a disassembled perspective view which shows one Embodiment of the container for packaging which concerns on this invention. It is one Embodiment of the packaging container which concerns on this invention, Comprising: It is a schematic sectional front view which shows the state opened. It is one Embodiment of the packaging container which concerns on this invention, Comprising: It is a schematic sectional front view which shows the state closed. It is a top view which shows one Embodiment of the packaging container which concerns on this invention. It is a principal part expansion perspective view which shows one Embodiment of the packaging container which concerns on this invention. An example of the conventional packaging container is shown, (a) is a top view, (b) is a partial cross-sectional front view. It is a perspective view which shows an example of the conventional unauthorized opening prevention container.

  An embodiment of a packaging container according to the present invention will be described with reference to FIGS. The packaging container includes a container body 10 having an opening 10a on the upper surface, and a lid 20 that opens and closes the opening 10a.

  The container body 10 includes a substantially rectangular bottom portion 11 having a circular arc at its corners, a body peripheral wall portion 12 that extends upward from the outer periphery of the bottom portion 11, and an outer periphery from the upper edge of the main body peripheral wall portion 12. The main body outer flange portion 13 provided and the rising portion 14 provided around the main body outer flange portion 13 upward from the outer periphery are integrally formed. The container body 10 is molded from a transparent, translucent or colored synthetic resin sheet.

  As shown in FIG. 2, the peripheral wall portion 12 has a side wall portion 12a inclined in a taper shape so as to increase in diameter upward from the outer periphery of the bottom portion 11, and an outer periphery from the upper end edge of the side wall portion 12a. The main body inner flange portion 12b and the reverse taper portion 12c inclined in a taper shape so as to decrease in diameter upward from the outer peripheral edge of the main body inner flange portion 12b are integrally formed. Therefore, the upper end edge of the reverse tapered portion 12c and the inner peripheral edge of the main body outer flange portion 13 are provided adjacent to each other, and the reverse tapered portion 12c expands from the inner peripheral edge of the main body outer flange portion 13 to the bottom portion 11 side. It is inclined to.

  Further, a protruding portion 12e protrudes at the center portion upward from the boundary between the inner edge of the main body inner flange portion 12b and the upper end edge of the side wall portion 12a. The protruding portion 12e protrudes lower than the reverse tapered portion 12c. Further, the bottom portion 11 is provided with a hill portion 11b that rises at a substantially right angle to the bottom portion main body 11a. Further, the side wall 12a and the bottom 11 are provided with a plurality of reinforcing ribs 15, 15,.

  Further, a narrow groove 16 is formed at least at one place from the main body inner flange portion 12b to the reverse taper portion 12c and the inner portion of the main body outer flange portion 13 for venting air when the lid is closed. The groove 16 can prevent the lid 20 from swelling when the lid is closed.

  The rising portion 14 is formed in an inverted U-shaped cross section, and has an inner rising portion 14a erected on the outer periphery of the main body outer flange portion 13, and an outer side facing the inner rising portion 14a with a certain distance on the outside. The rising portion 14b and the folded portion 14c that connects both upper end edges of the inner rising portion 14a and the outer rising portion 14b are integrated.

  Further, the rising portion 14 is formed in a substantially square frame shape in plan view, but each corner portion of the inner rising portion 14a is formed in an arc shape, and each corner portion of the outer rising portion 14b is formed in a shape close to a right angle. Has been. As shown in FIG. 1, the lower edge of the outer rising portion 14b is provided with a large number of fine irregularities 14d and reinforced, and even if the finger or the like is slightly directed outwardly, Is not cut off.

  And the notch part 14e is formed in at least one place (four places in drawing) of the rising part 14. FIG. In the cutout portion 14e, the inner rising portion 14a, the outer rising portion 14b, and the folded portion 14c have their spaces in the rising portion 14 closed by end face portions (not numbered). In addition, the notch part 14e is formed in the substantially V shape by the front view.

  On the other hand, as shown in FIG. 1 and FIG. 2, the lid body 20 includes a substantially rectangular top portion 21 whose corners are arcuate, and a lid peripheral wall portion 22 that is provided downward from the outer periphery of the top portion 21. A lid inner flange portion 23 provided outward from the lower edge, an engagement portion 24 provided upward from the outer periphery of the lid inner flange portion 23, and an outer edge from the upper edge of the engagement portion 24. A lid outer flange portion 25 that is circumferentially provided in a direction is integrally formed. The lid 20 is formed from a transparent synthetic resin sheet so that an object to be contained such as food can be seen. However, the lid 20 may be formed from a semitransparent or colored synthetic resin sheet depending on the use mode.

  When the lid is closed, the lid inner flange portion 23 overlaps the main body inner flange portion 12b, and the boundary between the inner peripheral edge of the lid inner flange portion 23 and the lid peripheral wall portion 22 is the protruding portion 12e of the container main body 10. I struggle with. Therefore, when the lid is closed, the lid inner flange portion 23 is sandwiched between the protruding portion 12e and the lower end edge of the reverse tapered portion 12c of the container body 10.

  Moreover, the engaging part 24 overlaps with the reverse taper part 12c of the container main body 10 at the time of lid closing. Therefore, the length of the engaging portion 24 and the length of the reverse tapered portion 12c are substantially the same. Further, the lid outer flange portion 25 overlaps with the main body outer flange portion 13 when the lid is closed, and the outer peripheral edge is in contact with or close to the inner rising portion 14 a of the container main body 10.

  The four corners of the lid outer flange portion 25 are formed in an arc shape corresponding to the arc shape of each corner portion of the inner rising portion 14a. Further, near one corner of the lid outer flange portion 25, there is formed a knob portion 25a that enters the notch portion 14e of the rising portion 14 and protrudes from the tip.

  A large number of fine irregularities 25b are formed on the outer peripheral edge side of the lid outer flange portion 25 and are reinforced, so that even if a finger hits, the finger or the like is not cut. The unevenness 25b is formed into a wave shape when viewed from the front side, a number of peaks and valleys are formed short in the width direction at each side, and a direction (radiation) connecting the corner and the center at the corner. Direction).

  The irregularities 25b are formed by knurled eyes such as flat knurled eyes and twill knurled eyes, for example. In addition, although the unevenness 25b is also formed in the knob portion 25a, it is preferably formed by a twill knurled eye so as to prevent slipping.

  The lid outer flange portion 25 is formed with an easy-open line 26 that can be torn halfway from the knob portion 25a to the other side 25c adjacent to the knob portion 25a. The easy-open line 26 is formed by perforation or half cut. Therefore, when the user picks the knob portion 25 a and pulls it toward the other side 25 c, the lid outer flange portion 25 is torn at the easy-open line 26.

  However, since the unevenness 25b is interposed between the terminal 26a of the easy opening line 26 and the other side 25c, the unevenness 25b serves as the tear preventing means 27, and the lid outer flange portion 25 is connected to the easy opening line 26. The terminal 25a is not further torn toward the other side 25c, so that the portion 25d ahead of the easy-open line 26 is not separated.

  The top portion 21 of the lid body 20 is provided with a receiving frame portion 21 a that externally fits the hill portion 11 b provided on the bottom portion 11 of the container body 10. The illustrated receiving frame portion 21a is formed by two ridges, but may be an L-shaped receiving frame portion 21a or a square-shaped receiving frame portion 21a provided at four corners.

  Here, the usage method of this packaging container is demonstrated. In the closed state, as shown in FIG. 3, the lid inner flange portion 23, the engaging portion 24, and the lid outer flange portion 25 of the lid body 20 are respectively the main body inner flange portion 12 b and the reverse tapered portion 12 c of the container body 10. The main body outer flange portion 13 overlaps and fits inside. Then, a sealed space is formed by the lid 20 and the container body 10, but the air in the space is exhausted from the groove 16 formed in the container body 10 when the lid is closed. 21 does not swell upward.

  Since the lid inner flange portion 23 is sandwiched between the reverse tapered portion 12c and the protruding portion 12e at four locations, the lid peripheral wall portion 22 of the lid body 20 is deformed by applying force, and the lid outer flange The part 25 cannot be lifted and opened illegally. Further, since the outer peripheral edge of the lid outer flange portion 25 is in contact with or close to the inner rising portion 14a of the rising portion 14 of the container body 10, the lid outer flange portion 25 cannot be directly picked.

  Then, a user such as a purchaser of the product presses the outer rising portion 14b of the container body 10 with one hand and holds the knob 25a of the lid outer flange portion 25 with the other hand to open the lid. Pull toward 25c. As shown in FIG. 4, the knob 25 a protrudes from the notch 14 e of the container body 10, so that it is easy to pick, and since the easy opening line 26 is formed in the lid outer flange 25, The flange portion 25 can be easily torn by the easy opening line 26.

  However, as shown in FIG. 5, since the tear prevention means 27 is provided on the other side 25 c side by the unevenness 25 b, it is not torn from the terminal 26 a of the easy-open line 26 to the other side 25 c, and therefore A portion 26 d ahead of the knob portion 25 a and the easy-open line 26 is not separated from the lid outer flange portion 25.

  And a user pulls up the lid outer side flange part 25 of the part torn by the easy-opening line 26 with the other hand, hold | suppressing the outer side rising part 14b etc. of the container main body 10 with one hand. Then, the lid body 20 and the container main body 10 are elastically deformed, and the lid inner flange portion 23, the engaging portion 24, and the lid outer flange portion 25 of the lid body 20 are the main body inner flange portion 12b and the reverse taper portion 12c, respectively. The lid can be opened away from the main body outer flange portion 13.

  And even when the items to be contained are not used up for food contained in the packaging container, the engaging portion for sealing between the container body 10 and the lid 20 is not broken by the lid. Can be closed again. That is, the lid inner flange portion 23, the engagement portion 24, and the lid outer flange portion 25 of the lid body 20 are overlapped with the main body inner flange portion 12b, the reverse taper portion 12c, and the main body outer flange portion 13 of the container body 10, respectively. Match. Therefore, even if the sap comes out from the stored food, the spill does not leak out from the packaging container.

  Further, in this packaging container, the lid inner flange portion 23 is sandwiched between the protruding portion 12e of the container body 10 and the lower end edge of the reverse tapered portion 12c, and the outer peripheral edge of the lid outer flange portion 25 is the inner side of the container body 10. Since it is in contact with or close to the rising portion 14a, it cannot be easily opened unless the knob 25a is picked and the easy opening line 26 is torn. Therefore, when the packaging container is illegally opened at a store, the packaging container can be easily identified.

  That is, it can be determined that the lid 20 whose lid outer flange portion 25 is not torn by the easy-open line 26 is not opened. On the contrary, when the lid outer flange portion 25 is torn by the easy-open line 26, it can be determined that the packaging container has been illegally opened.

  In the store, as shown by the phantom line in FIG. 3, a plurality of packaging containers are stacked, but the receiving frame portion 21a of the lower packaging container externally fits the hill portion 11b of the upper packaging container. As a result, the position does not shift even when an external force is applied.

  In addition, this invention can be variously changed without being limited to the said embodiment. For example, the tear preventing means 27 may be formed by a hole or a collar provided in the terminal 26a of the easy-open line 26, instead of the unevenness 25b. Moreover, although the said unevenness | corrugation 25b is provided in the perimeter of the lid outer flange part 25, as long as it functions only as the tear prevention means 27, you may provide it only in the terminal 26a of the easy-open line 26.

  In addition, the container body 10 may not include the protruding portion 12e and the elevated portion 11b, and the body peripheral wall portion 12 does not include the body inner flange portion 12b, and the side wall portion 12a and the reverse tapered portion 12c are directly provided. , May be provided adjacent to each other. Further, the container body 10 and the lid body 20 are not limited to a quadrangular planar shape, and may be a polygon such as a circle, an ellipse, a triangle, or a pentagon.

  Moreover, the rising part 14 of the container main body 10 is good also as only the inner side rising part 14a instead of double of the inner side rising part 14a and the outer side rising part 14b. In this case, the upper end edge of the inner rising portion 14a is preferably provided with an uneven 25b shape for reinforcement and not to be injured.

DESCRIPTION OF SYMBOLS 10a ... Opening part 10 ... Container main body 11 ... Bottom part 11b ... Elevated part 12 ... Main body surrounding wall part 12b ... Main body inner side flange part 12c ... Reverse taper part 12e ... Projection part 13 ... Main body outer side flange part 14 ... Rising part 20 ... Lid 21 ... Top 21a ... Receiving frame 22 ... Lid peripheral wall 23 ... Lid inner flange 24 ... Engagement 25 ... Lid outer flange 25a ... Knob 25c ... Other side 26 ... ... Easy opening line 26a ... Easy opening line terminal 27 ... Tearning prevention means

Claims (5)

A packaging container comprising a container body provided with an opening on the upper surface, and a lid for opening and closing the opening,
The container main body includes a bottom, a main body peripheral wall portion provided upward from an outer periphery of the bottom portion, a main body outer flange portion provided outward from an upper end edge of the main body peripheral wall portion, and the main body outer flange portion. And a rising portion that is provided so as to extend upward from the outer periphery of the main body. The main body peripheral wall portion is inclined so as to expand from the inner end edge adjacent to the main body outer flange portion to the bottom side. A reverse taper portion is formed, and the rising portion is formed with a notch portion at least in one place,
The lid includes a top portion, a lid peripheral wall portion provided downward from the outer periphery of the top portion, a lid inner flange portion provided outward from a lower end edge of the lid peripheral wall portion, and the lid inner side An engagement portion that is provided upward from the outer periphery of the flange portion and overlaps with the reverse taper portion of the container main body, is provided outwardly from an upper end edge of the engagement portion and overlaps with the outer flange portion of the main body, and A lid outer flange portion whose outer peripheral edge is in contact with or close to the rising portion of the container main body is integrally formed, and the lid outer flange portion is formed in the rising portion of the container main body in the vicinity of one corner. A knob part protruding from the cut-out part formed is formed, an easy-opening line is formed that allows tearing to the middle not reaching the other side adjacent to the knob part, and tearing is performed to prevent tearing of the easy-opening line. The blocking means is the terminal of the easy-open line Serial packaging containers, characterized in that provided between the other side.   The packaging container according to claim 1, wherein the tear preventing means has a plurality of grooves formed in a direction orthogonal to or intersecting with the easy-open line.   The main body peripheral wall portion of the container main body is provided with a main body inner flange portion that overlaps with a lid inner flange portion of the lid body, and is provided inwardly from the lower end edge of the reverse taper portion. The packaging container according to 2.   The container body is provided with a protruding portion that protrudes upward from the inner edge of the inner flange portion of the main body so as to stop the inner peripheral edge of the inner flange portion of the lid of the closed lid. The packaging container according to claim 3, wherein the container is a packaging container.   The base part of the said container main body is provided with the hill part, The top part of the said cover body is provided with the receiving frame part which externally fits the said hill part, It is characterized by the above-mentioned. The packaging container according to one item.

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