JP2006160349A - Packaging container lid, packaging container and food packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container lid in which the lids do not fit into each other even when many are stacked, a packaging container using the same, and a food packaging body.
SOLUTION: A lid having a structure in which a top surface portion 2 is positioned lower than an upper end of an opening of a packaging container when it is put on a packaging container, and an upright portion 4 erected from a peripheral edge of the top surface portion; A horizontal portion 5 extending horizontally outward from the distal end of the horizontal portion, a hanging portion 6 extending downward from the distal end of the horizontal portion, and radially outward from the distal end of the hanging portion A convex portion 3 having an inverted U-shaped cross section comprising a flange portion 7 extended in the direction is provided on the periphery of the top surface portion, and locking portions 9 projecting radially inward are provided at a plurality of circumferential positions of the hanging portion. Stop protrusions 8 projecting radially outward are provided at a plurality of circumferential positions on the erected portion, and the locking portions and the locking projections are arranged at positions where they do not face each other. The lid | cover 1 provided in the same height of the upper side rather than.
[Selection] Figure 1

Description

  The present invention relates to a packaging container lid that covers a packaging container that contains various foods such as chopped rice cakes, salads, and confectionery, and closes the container opening. A container lid for packaging, which is lower than the upper end of the opening, and has a low height for the purpose of holding food stored such as chopped rice cake so that it does not dance in the container when carrying it, and stacking it high during display The present invention relates to a packaging container in which a body is covered with the packaging container lid, and a food packaging body in which food is contained in the packaging container.

Conventionally, as a relatively small packaging container for storing foods such as salads and confectionery, a synthetic resin container body and a synthetic resin having a convex U-shaped section on the periphery of the container body A packaging container comprising a packaging container lid is used.
When a food container is manufactured by filling food in this packaging container and covering with a packaging container lid, a large number of packaging container lids are supplied to the production line in a stacked state. Adsorbed by an apparatus or the like, transported, covered and pressed over the opening of the container main body containing the food, and fitted to the container main body by fitting the flange of the container main body into the ridge. This type of packaging container lid is required to be able to smoothly supply individual packaging container lids from the upper side or the lower side without being fitted to each other even in a stacked state.
On the other hand, when a large number of conventional packaging container lids are stacked, the upper and lower ridges are easily fitted to each other, and the work of separating and using the stacked packaging container lids may be hindered. In addition, the horizontal positioning tends to be insufficient, and there is a risk of tilting when the stacking is high.

For example, a packaging container lid disclosed in Patent Document 1 has been proposed as a lid that can accurately suck and transport the stacked lids one by one from above. The packaging container lid is formed on the outer peripheral edge of the ceiling plate so that the upper width of the hollow rising edge having an inverted U-shaped cross section is smaller than the lower width of the hollow rising edge, and the upper and lower portions of the inner peripheral surface of the hollow rising edge A step portion is provided on the boundary line with the ring, and a ring groove is provided on the outer peripheral surface of the hollow rising edge.
Japanese Patent Laid-Open No. 10-120005

  However, the packaging container lid described in Patent Document 1 supports the lid when the top and bottom of the inverted U-shaped hollow rising edge are linearly abutted when a large number of lids are stacked. If a load is applied, the hollow rising edges of the upper and lower lids may be fitted into each other. It may cause problems such as easy.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a packaging container lid in which the lids do not fit into each other even when a large number of stacks are stacked, a packaging container using the same, and a food packaging body.

  In order to achieve the above object, the present invention provides a packaging container lid having a structure in which the top surface portion is positioned lower than the upper open end of the packaging container when the packaging container is put on the packaging container, and is erected from the periphery of the top surface portion. A raised portion, a horizontal portion extending horizontally outward from the distal end of the raised portion, a hanging portion extending downward from the distal end of the horizontal portion, and the hanging portion Convex parts having a reverse U-shaped cross section consisting of a flange part extending radially outward from the tip of the top part are provided on the periphery of the top surface part, and radially inward at a plurality of circumferential positions of the hanging part. Protruding locking portions are provided, stop protrusions protruding radially outward are provided at a plurality of circumferential positions of the upright portion, and the locking portions and the stopping protrusions are arranged at positions that do not face each other, and The locking portion and the locking projection are provided at the same height above the top surface portion. To provide a packaging container lid, characterized in that.

  In the packaging container lid of the present invention, the inner shoulder portion and the outer shoulder portion of the horizontal portion are each formed in a tapered shape, and the lower surface side of each of the locking portion and the retaining protrusion is formed in a tapered shape, respectively, When a plurality of container lids are stacked, the tapered surface of the stopper projection comes into surface contact with the tapered surface of the inner shoulder portion, and the tapered surface of the locking portion comes into surface contact with the tapered surface of the outer shoulder portion. preferable.

  Further, the present invention provides a container body having a bottom portion, a side wall portion standing from the periphery thereof, and a flange or a fitting portion provided at the tip of the side wall portion, and is mounted by closing the opening of the container body. There is provided a packaging container comprising the above-described packaging container lid according to the present invention.

  Moreover, this invention provides the food packaging body by which a foodstuff is accommodated in the container for packaging based on this invention mentioned above.

  The packaging container lid of the present invention is provided with locking portions protruding radially inward at a plurality of circumferential positions of the hanging portion, and provided with stopping protrusions protruding radially outward at a plurality of circumferential positions of the rising portion, Since the locking portion and the locking projection are arranged at positions that do not face each other, and the locking portion and the locking projection are provided at the same height above the top surface, a large number of packaging container lids are stacked. Sometimes, the locking projection and locking part abuts and supports the horizontal part of the lower packaging container lid, so stability in the stacked state is improved, and even if the stacked height is increased, it does not tilt and does not fall easily Become.

  In addition, with the above configuration, even when a large number of packaging container lids are stacked and a load from above is applied, the convex strip portion is difficult to fit into the convex strip portion of the lower packaging container lid, Even if the packaging container lids are stacked, they can be used by being surely adsorbed one by one by suction from above, and troubles such as poor supply of lids can be reduced in the production of food packaging bodies.

  In addition, since the arrangement is such that the undercut stop protrusion and the locking portion do not face each other, the mold can be easily removed during the molding of the packaging container lid, which makes it easy to produce. If the stop protrusions are continuously provided over the entire circumference, it is difficult to remove the mold and workability is deteriorated.

  Moreover, since it was set as the structure which provided the latching | locking part and the latching protrusion in the same height above a top surface part, the height of a protruding item | line part is not made too high like the cover of patent document 1. In addition, since it is possible to prevent the protrusions from being fitted, a short packaging container lid can be produced, and the amount of resin used and the number of stackable sheets can be increased.

  Further, since the height of the ridge is not excessively high, the height of the opening of the packaging container fitted to the ridge can be kept low, and the height of the container can also be lowered. The stacking height when stacking a large number of food packaging bodies containing food in the container for use can also be kept low.

  Also, the inner shoulder and outer shoulder of the horizontal part are each tapered, and the lower surface of each of the locking part and the stop projection is each tapered, so that when a plurality of packaging container lids are stacked, Since the taper surface of the protrusion is in contact with the taper surface of the inner shoulder and the taper surface of the locking portion is in surface contact with the taper surface of the outer shoulder, the taper of the stop protrusion is increased when many packaging container lids are stacked. The surface is in contact with the tapered surface of the inner shoulder and the tapered surface of the locking portion is in surface contact with the tapered surface of the outer shoulder, so that the horizontal overlapping position is fixed, and it is difficult to tilt even when stacked high. Further, since there are a plurality of positions to be supported in the circumferential direction, the load is applied evenly to the horizontal portion, and the lids do not fit into each other even if they are stacked high.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of a packaging container lid (hereinafter referred to as a lid) according to the present invention, FIG. 1 is a partially broken perspective view of the lid 1, and FIG. 2 is a plan view of the lid 1. FIG. 3 is a cross-sectional view of the ridge portion 3 of the lid 1, and FIG. 4 is a cross-sectional view of the ridge portion 3 in a state where a plurality of lids 1 are stacked. In these drawings, reference numeral 1 is a lid, 2 is a top surface portion, 3 is a ridge portion, 4 is a raised portion, 5 is a horizontal portion, 6 is a hanging portion, 7 is a flange portion, 8 is a stop projection, and 9 is a lock , 11 is an inner shoulder, and 12 is an outer shoulder.

  The lid 1 of the present embodiment is a lid 1 having a structure in which the top surface portion 2 is positioned lower than the upper end of the opening of the packaging container when the lid 1 is placed on the packaging container. An upper portion 4, a horizontal portion 5 extending horizontally outward from the tip of the upright portion 4, a drooping portion 6 extending downward from the tip of the horizontal portion 5, and a drooping portion 6 A convex portion 3 having a reverse U-shaped cross section is provided on the peripheral edge of the top surface portion 2. The convex portion 3 is composed of a flange portion 7 extending radially outward from the tip of the top surface portion 2.

  Locking portions 9 projecting radially inward are provided at a plurality of locations in the circumferential direction of the drooping portion 6, and stop projections 8 projecting radially outward are provided at a plurality of locations in the circumferential direction of the upright portion 4. It has been. These locking portions 9 and the locking protrusions 8 are arranged at positions that do not face each other. Further, the locking portion 9 and the locking projection 8 are provided above the top surface portion 2 and at the same height.

  The lid 1 of the present embodiment is produced by molding a synthetic resin sheet. As the synthetic resin of the material, a thermoplastic resin such as a polyethylene terephthalate (PET) resin, a polyethylene resin, a polystyrene resin, or a polypropylene resin is used. Can be mentioned. The thickness of the synthetic resin sheet is not limited, but is generally about 0.15 mm to 0.5 mm.

  The lid 1 of the present embodiment has a circular shape in plan view, but the shape of the lid 1 is not limited to this, and may be a polygon such as an ellipse, an oval, or a rectangle with rounded corners. It is usually a circle or a rectangle with rounded corners.

  The size of the ridge portion 3 is not particularly limited. For example, in the case of the lid 1 having a diameter of about 100 mm, the width of the horizontal portion 5 of the ridge portion 3 is about 4 mm to 10 mm, the upright portion 4 and the hanging portion 6. Is about 4 mm to 10 mm. The lid 1 of the present invention is particularly excellent in the effect of preventing the protrusions 3 from being fitted and improving the stability of the stacked state when a large number of the lids 1 are stacked.

  The stop protrusions 8 provided on the upright portion 4 are at least two locations on the entire circumference of the upright portion 4, preferably at least four locations, more preferably at least six locations. The protrusion length of the stop protrusion 8 from the upright portion 4 is preferably about 0.1 mm to 1.0 mm.

  The locking portions 9 provided on the hanging portion 6 are provided at two or more positions on the entire circumference of the hanging portion 6, preferably four or more locations, and more preferably six or more locations. The protruding length of the locking portion 9 from the hanging portion 6 is preferably about 0.2 mm to 1.0 mm.

  The inner shoulder portion 11 and the outer shoulder portion 12 of the horizontal portion 5 are each formed in a tapered shape, and the lower surface sides of the locking portion 9 and the stop protrusion 8 are also formed in a tapered shape. Accordingly, as shown in FIG. 4, when a large number of lids 1 are stacked, the taper surface of the stop projection 8 is the taper surface of the inner shoulder portion 11, and the taper surface of the locking portion 9 is the taper surface of the outer shoulder portion 12. Is in surface contact. The inclination angle of these tapered surfaces is preferably in the range of 30 to 60 degrees with respect to the horizontal plane. Further, the width of the tapered surfaces of the inner shoulder portion 11 and the outer shoulder portion 12 is preferably about 10% to 40% of the width of the horizontal portion (the width when no taper is provided on the inner shoulder portion and the outer shoulder portion).

  The lid 1 of the present embodiment is provided with locking portions 9 protruding radially inward at a plurality of locations in the circumferential direction of the hanging portion 6, and stop protrusions 8 protruding radially outward at a plurality of locations in the circumferential direction of the upright portion 4. The locking portion 9 and the locking projection 8 are arranged at positions that do not face each other, and the locking portion 9 and the locking projection 8 are provided at the same height above the top surface portion 2. As shown in FIG. 4, when a large number of lids 1 are stacked, the stop projection 8 and the locking portion 9 abut against and support the inner shoulder 11 of the horizontal portion 5 of the lid 1, so that stability in the stacked state is achieved. It improves the performance and does not tilt even if the stacking height is increased, making it difficult to collapse.

  Further, with the above-described configuration, even if a large number of lids 1 are stacked and a load from above is applied, the protruding strip portion 3 is difficult to fit into the protruding strip portion 3 of the lower lid, and the multiple lids 1 are attached. Even if they are stacked, they can be reliably adsorbed one by one by suction from above, and troubles such as poor supply of the lid 1 can be reduced in the production of food packaging.

Further, since the stop protrusion 8 and the locking portion 9 which are undercut are arranged so as not to face each other, the mold can be easily removed when the lid 1 is molded, and the production is easy.
Moreover, since it was set as the structure which provided the latching | locking part 9 and the latching protrusion 8 in the same height above the top-surface part 2, the height of a protruding item | line part is made too high like the cover of patent document 1. Even if it does not do, since it can achieve prevention of fitting of a protruding item | line part, the lid | cover 1 with a short height can be produced, and reduction of use resin and increase of the number of stackable sheets can be aimed at.

  In addition, the height of the ridge 3 is not excessively high, so that the height of the opening of the packaging container fitted to the ridge 3 can be kept low, and the height of the container can also be lowered. The stacking height when stacking a large number of food packages containing food in the packaging container can also be kept low.

  Further, the inner shoulder portion 11 and the outer shoulder portion 12 of the horizontal portion 5 are each formed in a tapered shape, and the lower surface sides of the locking portion 9 and the locking projection 8 are respectively formed in a tapered shape, and a plurality of lids 1 are stacked. Since the tapered surface of the stop projection 8 is in contact with the tapered surface of the inner shoulder portion 11 and the tapered surface of the locking portion 9 is in surface contact with the tapered surface of the outer shoulder portion 12, a large number of lids 1 are stacked. Sometimes, the taper surface of the stop protrusion 8 is in surface contact with the taper surface of the inner shoulder portion 11 and the taper surface of the locking portion 9 is in surface contact with the taper surface of the outer shoulder portion 12 so that the horizontal overlapping position is fixed and the stacking is high. Even tilting is difficult. Further, since there are a plurality of positions to be supported in the circumferential direction, the load is applied to the horizontal portion 5 evenly, and the lids do not fit into each other even if they are stacked high.

  FIG. 5 is a cross-sectional view showing an embodiment of a packaging container according to the present invention. The packaging container 10 includes a container main body 13 including a bottom portion 14, a side wall portion 15 erected in a cylindrical shape from the periphery thereof, and a flange 16 provided at the tip of the side wall portion 15, The lid 1 is configured to close the opening and is mounted.

  The container body 13 is formed by molding a synthetic resin sheet, and examples of the synthetic resin include thermoplastic resins such as polyethylene terephthalate (PET) resin, polyethylene resin, polystyrene resin, and polypropylene resin. Resin compositions containing these resins with an inorganic filler such as titanium oxide or talc can also be used. The synthetic resin sheet may be either a non-foamed sheet or a foamed sheet, and the thickness is not limited, but is generally about 0.25 mm to 2 mm.

  The planar shape of the container main body 13 is circular like the lid 1 described above. The planar shape of the container body 13 is not limited to a circle, and may be an oval, an oval, a polygon such as a rectangle with rounded corners, etc., and is usually a circle or a rectangle with rounded corners. The Further, the height and the diameter of the container body 13 are not limited.

  The front end of the side wall portion 15 is folded back in an inverted J-shaped cross section, and the front end is horizontally provided with a flange 16. When the flange 16 is put on the lid 1 and pressed from above, the flange 16 gets over the engaging portion 9 of the lid 1 and fits into the convex portion 3, and the tip of the flange 16 comes into contact with the inner wall surface of the hanging portion 3. It has become.

  The packaging container 10 according to the present embodiment is formed by covering the opening of the container body 13 with the lid 1 described above, and fitting the flange 16 on the container body 13 side into the ridge portion 3 of the lid 1. Sometimes the top surface 2 of the lid 1 is positioned below the upper end of the opening of the container body 13. By adopting such a structure, it is possible to hold the food stored in the container such as chopped rice cake so that it does not dance in the container. Moreover, since the top | upper surface part 2 of the lid | cover 1 is located below the opening upper end of the container main body 13, the height of the container main body 1 can be made low, Therefore A food packaging body can be stacked highly at the time of display.

  FIG. 6 is a cross-sectional view showing another embodiment of the packaging container according to the present invention. The packaging container 17 of the present embodiment is shown in FIG. 5 described above except that a fitting portion 18 having an inverted U-shaped cross section that fits into the protruding strip portion 3 of the lid 1 is provided at the tip of the container body. It is comprised similarly to the container 10 for packaging.

  When the lid 1 is attached to the container body, the fitting portion 18 is elastically deformed inward so as to get over the locking portion 9 of the lid 1 and fit into the ridge 3. In the state where the lid 1 is mounted, the fitting portion 18 has a relatively wide area between the inner surface side of the ridge portion 3 and the outer surface side of the fitting portion 18, thereby increasing the strength of the packaging container. In addition, the airtightness in the container can be increased.

  The present invention also provides a food package that uses the packaging containers 10 and 17 according to the present invention described above, stores food in the container body 13, and covers the opening of the container body 13 with the lid 1. To do. By using the packaging containers 10 and 17 according to the present invention described above, the food packaging body of the present invention can be pressed down so that the food stored therein, such as chopped rice cake, does not dance in the container. Moreover, since the top | upper surface part 2 of the lid | cover 1 is located below the opening upper end of the container main body 13, the height of the container main body 1 can be made low, Therefore A food packaging body can be stacked highly at the time of display.

1 is a partially broken perspective view showing an embodiment of a lid according to the present invention. It is a top view of the same lid | cover. It is sectional drawing of the protruding item | line part of the same lid | cover. It is sectional drawing of the protruding item | line part of the state which accumulated many lid | covers. It is principal part sectional drawing which shows one Embodiment of the packaging container which concerns on this invention. It is principal part sectional drawing which shows other embodiment of the packaging container which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Lid (packing container lid), 2 ... Top plate part, 3 ... Projection strip part, 4 ... Upright part, 5 ... Horizontal part, 6 ... Hanging part, 7 ... Flange part, 8 ... Stop protrusion, 9 ... Engagement Stop part, 10, 17 ... Packaging container, 11 ... Inner shoulder part, 12 ... Outer shoulder part, 13 ... Container body, 14 ... Bottom part, 15 ... Side wall part, 16 ... Flange, 18 ... Fitting part.

Claims (4)

A packaging container lid having a structure in which the top surface portion is positioned lower than the upper opening end of the packaging container when covered with the packaging container,
An upright standing upright from the periphery of the top surface, a horizontal portion extending radially outward from the tip of the upright, and extending downward from the tip of the horizontal portion A convex portion having an inverted U-shaped cross section comprising a drooping portion and a flange portion extending radially outward from the tip of the drooping portion is provided at the periphery of the top surface portion, and a plurality of circumferential portions of the drooping portion are provided. Locking portions that protrude radially inward are provided at locations, and stop protrusions that protrude radially outward are provided at a plurality of locations in the circumferential direction of the upright portion, and the locking portions and the stop protrusions face each other. A packaging container lid, characterized in that it is disposed at a position not to be disposed, and the locking portion and the locking projection are provided at the same height above the top surface portion.   When the inner shoulder portion and the outer shoulder portion of the horizontal portion are each tapered, and the lower surfaces of the locking portion and the retaining projection are respectively tapered, and a plurality of the packaging container lids are stacked. The taper surface of the stop protrusion is in contact with the taper surface of the inner shoulder portion, and the taper surface of the locking portion is in surface contact with the taper surface of the outer shoulder portion. Container lid for packaging.   3. A container main body comprising a bottom portion, a side wall portion standing upright from the peripheral edge thereof, and a flange or a fitting portion provided at the tip of the side wall portion, and an opening of the container main body being closed and mounted. A packaging container comprising the packaging container lid described in 1. A food package comprising a food container contained in the packaging container according to claim 3.

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