JP2022143275A - Lid material and container using the same - Google Patents

Abstract

To provide a lid material that can reduce environmental loads.SOLUTION: A lid material, which is formed by folding back a blank paper made of paper and is fitted to a cylindrical container main body with a bottom, comprises: a top plate part that covers an opening formed at an upper end of the container main body; a tabular fixed part that is connected to a portion of an end part of the top plate part to be fixed to an outer surface of the container main body; and a tabular engagement part connected to an end part different from the portion fixed with the fixed part at the end part of the top plate part. A slit extending along a portion adjacent to the top plate part of the engagement part is formed at the portion adjacent thereto.SELECTED DRAWING: Figure 5

Description

The present invention relates to a lid member and a container in which the lid member is fitted over a container body.

A conventional container for yogurt or the like is disclosed in US Pat. The container comprises a container body, an inner lid and an outer lid. The container body is made of paper with polyethylene on the inner surface side, and is formed into a bottomed cylindrical shape with a flange around the mouth. The inner lid is made of resin such as polyethylene or polyethylene terephthalate, and is thermally bonded to the flange. The outer cover is formed of a resin molded product and fitted to the flange of the container body.

The contents can be taken out by removing the outer lid and peeling the inner lid from the flange. Also, the container with the remaining contents can be stored with the outer lid closed.

Jitsuzen Sho 57-140384 (pages 3-10, Figure 9)

However, according to the above conventional container, since the outer cover is formed of a resin molded product, there is a problem that the environmental load is increased.

An object of the present invention is to provide a container that can reduce the environmental load.

In order to achieve the above object, the lid member according to the present invention is formed by folding a blank plate made of paper, and is fitted onto a bottomed cylindrical container body. The cover member includes a top plate portion covering an opening formed at the upper end of the container body, and a plate-like fixing portion connected to a part of the end portion of the top plate portion and fixed to the outer surface of the container body. and a plate-like engaging portion connected to an end portion of the top plate portion different from the fixed portion. A slit extending along the adjacent portion is formed in the portion of the engaging portion adjacent to the top plate portion.

According to this configuration, the lid for resealing can be made of paper. Therefore, the environmental load can be reduced by omitting the outer cover, which is a resin molded product.

Further, according to the present invention, in the lid member configured as described above, at least one of the engaging portions is connected to an end portion on the opposite side of the fixing portion and the top plate portion.

Further, according to the present invention, in the lid member configured as described above, the top plate portion has a rectangular shape in a plan view, the fixing portion is connected to one side of the top plate portion, and the remaining sides of the top plate portion are connected to each other. It has three said engaging parts connected with each.

The present invention also provides a container having the lid member configured as described above, wherein the lid member is fitted onto a cylindrical container body with a bottom, and a flange portion extending outward from an upper opening of the container body is sealed. the fixing portion is bent at a connection portion with the top plate portion and fixed to the outer surface of the container body, and the engaging portion is bent at a connection portion with the top plate portion; At the same time, the slit is engaged with the lower surface of the flange portion to hold the lid member on the container body.

ADVANTAGE OF THE INVENTION According to this invention, the container which can reduce an environmental load can be provided.

1 is a perspective view of an example of a container having a lid according to the present invention, viewed from the upper rear side; FIG. It is the perspective view seen from the downward front side of a container. It is an exploded perspective view of a container. It is a figure which shows the blank board which expanded the cover material. It is the perspective view seen from the bottom of the lid|cover material formed by bending|folding a blank plate. FIG. 4 is a side view of a container with a lid attached; FIG. 4 is a side view of the container with the first engaging portion and the second engaging portion lifted; It is the perspective view which looked at the container of the state which lifted the 1st engaging part and the 2nd engaging part from the bottom. FIG. 4 is a side view of the container showing a state in which the lid member is opened and the resin sheet is unsealed; FIG. 4 is a side view of the container with the lid member opened and the resin sheet removed. FIG. 4 is a side view of the container with the lid member closed so that the top plate portion is in contact with the flange portion; FIG. 4B is a side view of the container resealed with the lid member by bending the first engaging portion and the second engaging portion downward;

A container 100 having a lid member 20 according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an example of a container 100 having a lid member 20 according to the present invention, viewed from the rear upper side. FIG. 2 is a perspective view of the container 100 viewed from the front and lower side. FIG. 3 is an exploded perspective view of the container 100. FIG. In this specification, the direction of gravity is defined as downward, and the opposite direction is defined as upward. In addition, the side where a fixing portion 22, which will be described later, is fixed to the container body 10 is referred to as the rear side, and the opposite side thereof is referred to as the front side.

<Container 100>
As shown in FIGS. 1 to 3, the container 100 has a container body 10 and a lid member 20. As shown in FIGS. Contents (not shown) are accommodated inside the container 100 . Here, the content is assumed to be food (for example, gel such as yogurt, jelly, jam, etc.), but is not limited to this. For example, the contents may be powdered foods such as salt, sugar and spices, or solid foods such as processed meat. Contents other than food, such as lubricants such as grease, hairdressing agents, fragrances, and wet wipes, may also be accommodated.

<Container body 10>
The container main body 10 has a bottomed tubular shape capable of accommodating contents in an internal accommodation space 10S. In the container 100 of the present embodiment, for example, the container body 10 may have a configuration in which paper is used as a base material and a coating layer having water resistance, gas barrier properties, etc. is provided inside. Examples of water-resistant coating layers include resin layers made of polyethylene (PE), polyethylene terephthalate (PET), and the like. Moreover, an aluminum layer can be mentioned as the coating layer having a gas barrier property.

Note that the container body 10 may be made of a thermoplastic resin such as polypropylene (PP) or polystyrene (PS). Further, the container body 10 is not limited to these resins, and a wide range of resins that are easy to mold can be used. Moreover, when the container 100 is used to store food, at least the inner surface of the container body 10 is made of a material that is non-toxic or substantially non-toxic to the human body.

As shown in FIGS. 1 to 3, the container body 10 has a bottom portion 11, a side wall portion 12, and a flange portion 13. As shown in FIGS. The side wall portion 12 has a tubular shape extending vertically. The side wall portion 12 is formed by bending a single plate-shaped member into a ring shape and adhering both ends thereof. The container body 10 has a cylindrical shape with a bottom, and the lower portion of the side wall portion 12 is closed by the bottom portion 11 . The bottom portion 11 is fixed at a position shifted upward from the lower end portion of the side wall portion 12 (see FIG. 2). By configuring in this way, the rigidity of the bottom portion 11 can be increased. In addition, when the container body 10 is an integrally molded resin body, the bottom portion 11 may be connected to the lower end portion of the side wall portion 12 .

An opening 14 is formed in the upper end portion of the side wall portion 12 for taking in and out the content accommodated inside the accommodation space 10S (see FIG. 3, etc.). The opening 14 vertically faces the bottom portion 11 . As shown in FIG. 3, opening 14 is larger than bottom 11, but is not so limited. The flange portion 13 extends outward from the upper end of the side wall portion 12 . That is, the flange portion 13 is arranged outside the opening 14 .

The container body 10 has a rectangular shape in plan view. In the container body 10, the outer shape of the bottom portion 11, the outer shape and inner shape of the side wall portion 12 (the outer shape of the opening 14), and the outer shape of the flange portion 13 are all curved corners and adjacent corners in plan view. It has a substantially rectangular shape with two straight line portions that are parallel to each other, and are substantially similar in shape to each other. Each shape described above is generally rectangular. However, the shape is not limited to this, and may be a substantially elliptical shape, a circular shape, a substantially regular polygonal shape, or the like.

<Lid material 20>
The lid member 20 will be described with reference to the drawings. FIG. 4 is a diagram showing the blank plate 200 with the lid member 20 unfolded. FIG. 5 is a bottom perspective view of the lid member 20 formed by bending the blank plate 200. FIG. In addition, in FIG. 4, the flange portion 13 of the container body 10 is indicated by a broken line. Hereinafter, based on the state shown in FIG. 4, the horizontal direction is defined as the longitudinal direction, and the vertical direction is defined as the lateral direction. In FIG. 4, folding lines L1 to L4 are indicated by one-dot chain lines, and cutting lines Ct1 and Ct2 are indicated by two-dot chain lines.

As shown in FIGS. 1 to 3 and the like, the lid member 20 is arranged on the top of the container body 10 . The lid member 20 is formed by forming cutting lines Ct1 and Ct2 on a portion of the blank plate 200 and folding along the folding lines L1 to L4. In addition, as the folding line, for example, a shape that protrudes from one surface of the blank plate 200 and is recessed from the other surface can be mentioned, but it is not limited to this.

As the blank board 200, for example, high-quality paper, kraft paper, imitation paper, coated paper, or the like is used. The basis weight of the blank plate 200 can be, for example, 100 g/m ² to 500 g/m ² . The blank plate 200 has higher rigidity than the resin sheet 30 described later. Therefore, the container 100 can be placed above the lid member 20 . That is, the containers 100 can be arranged one on top of the other.

As shown in FIGS. 4 and 5 , the lid member 20 has a top plate portion 21 , a fixing portion 22 , a first engaging portion 23 and a second engaging portion 24 . The top plate portion 21 has a rectangular shape with curved corners in plan view. The top plate portion 21 has a pair of long side portions 21a and 21b and a pair of short side portions 21c and 21d. The shape of the top plate portion 21 is such that it overlaps with the flange portion 13 of the container body 10 .

As shown in FIG. 4, the folding line L1 of the blank plate 200 is arranged so as to overlap the long side portion 21a of the top plate portion 21 . The fixed portion 22 is connected to the top plate portion 21 via the folding line L1. The folding lines L2 are arranged at both ends of the long side portion 21b of the top plate portion 21 in the longitudinal direction. Further, a cutting line Ct1 is formed in the central portion in the longitudinal direction of the long side portion 21b. As shown in FIG. 4, folding lines L2 are connected to both longitudinal ends of the cutting line Ct1. A second engaging portion 24 is connected to the long side portion 21b of the top plate portion 21 via a folding line L2.

The folding lines L3 are arranged at both ends of each of the pair of short side portions 21c and 21d of the top plate portion 21 in the short direction. A cutting line Ct2 is formed in the center of the short sides 21c and 21d in the width direction. As shown in FIG. 4, folding lines L3 are connected to both ends in the short direction of the cutting line Ct2. A pair of short side portions 21c and 21d of the top plate portion 21 are connected to the first engaging portion 23 via a folding line L3. That is, the lid member 20 has two first engaging portions 23 . The first engaging portions 23 are arranged side by side in the longitudinal direction of the lid member 20 . In addition, the 1st engaging part 23 and the 2nd engaging part 24 are engaging parts.

The fixed portion 22 has an adhesive portion 221 and a movable portion 222 . The fixed portion 22 has a folding line L4 extending in the longitudinal direction at the intermediate portion in the lateral direction. In the fixed portion 22, the adhesive portion 221 and the movable portion 222 are connected via the folding line L4. The opposite side of the portion of the movable portion 222 that is connected to the adhesive portion 221 is connected to the long side portion 21a of the top plate portion 21 via the folding line L1. The fixed portion 22 can be folded along the folding line L4.

The blank plate 200 is folded along the folding line L1. As a result, the fixed portion 22 is vertically provided from the long side portion 21 a of the top plate portion 21 . At this time, the fixed portion 22 is bent so as to be substantially perpendicular to the top plate portion 21 .

Similarly, the blank plate 200 is folded along the folding line L3. As a result, the first engaging portions 23 are vertically provided from the short side portions 21 c and 21 d of the top plate portion 21 . As shown in FIG. 4, the cutting line Ct2 protrudes outward in the longitudinal direction from the folding line L3. Therefore, when the first engaging portion 23 is folded along the folding line L3, the top plate portion 21 is formed with a protruding portion 211 that protrudes outward from the folding line L3. A slit 231 extending along the adjacent portion is formed in the portion of the first engaging portion 23 adjacent to the boundary with the top plate portion 21 (see FIG. 5).

Further, the blank plate 200 is folded along the folding line L2. Thereby, the second engaging portion 24 is vertically provided from the long side portion 21 b of the top plate portion 21 . As shown in FIG. 4, the cutting line Ct1 protrudes outward in the lateral direction from the folding line L2. Therefore, when the second engaging portion 24 is folded along the folding line L2, the top plate portion 21 is formed with a protruding portion 212 that protrudes outward from the folding line L2. A slit 241 extending along the adjacent portion is formed in the portion of the second engaging portion 24 adjacent to the boundary with the top plate portion 21 (see FIG. 5).

The lid member 20 is thus formed by bending the flat blank plate 200 . In the lid member 20 , a printed layer (not shown) may be provided on the upper surface of the top plate portion 21 , the outer surfaces of the fixing portion 22 , the first engaging portion 23 and the second engaging portion 24 . The printed layer forms information about the content contained in the containing space 10S of the container body 10, the image of the product, and the like. In addition, when printing is unnecessary, the printing layer may be omitted.

<Resin sheet 30>
As shown in FIGS. 2 and 3, the container 100 has a resin sheet 30 that covers the upper end of the container body 10 and is sealed by the flange portion 13 to seal the housing space 10S of the container body 10. As shown in FIG. As the resin sheet 30, for example, a PE resin, a PE resin film, a PET resin film, or a laminate thereof, a resin film or a laminate thereof having functions necessary for sealing such as sealability, water resistance, gas barrier properties, etc., is widely adopted. can do. The sealing of the resin sheet 30 to the flange portion 13 is performed, for example, by heat sealing, but a sealing method other than heat sealing may be employed.

In the container 100 , the resin sheet 30 is heat-sealed to seal the container body 10 while the contents are stored in the storage space 10</b>S of the container body 10 .

FIG. 6 is a side view of the container 100 with the lid member 20 attached. As shown in FIG. 6 , the lid member 20 is provided on the container body 10 with the resin sheet 30 sealed to the flange portion 13 . More specifically, the top plate portion 21 is arranged above the resin sheet 30 sealed to the flange portion 13 of the container body 10 .

The inner surface of the adhesive portion 221 of the fixing portion 22 extending from the long side portion 21 a is attached to the outer surface of the side wall portion 12 of the container body 10 . Thereby, the lid member 20 is attached to the container body 10 . As the bonding of the bonding portion 221 to the side wall portion 12, for example, bonding with an adhesive can be given, but the bonding is not limited to this. For example, a wide variety of fixing methods, such as fixing by hot-melt, that can firmly fix the lid member 20 to the side wall portion 12 can be employed.

The movable part 222 is not adhered to the fixed part 22 . By having the movable portion 222, when fixing the adhesive portion 221 to the side wall portion 12, adjustment is possible by the movable portion 222, and the top plate portion 21 can be accurately arranged on the upper surface of the flange portion 13. becomes. In addition, since the movable portion 222 is provided, the opening angle of the lid member 20 can be increased.

By bending the first engaging portions 23 so as to extend vertically from the short side portions 21 c and 21 d of the top plate portion 21 , the short side portions of the flange portion 13 and the resin sheet 30 are bent to the respective first engaging portions. It fits in the slit 231 of 23. In addition, by bending the second engaging portion 24 so as to extend vertically from the long side portion 21 b of the top plate portion 21 , the long side portion of the flange portion 13 and the resin sheet 30 form the slit 241 of the second engaging portion 24 . fit in. By doing so, the lid member 20 is attached to the top of the container 100 . That is, the lid member 20 is held by the container body 10 .

In addition, in the lid member 20 of the present embodiment, the second engaging portion 24 connected to the long side portion 21b of the top plate portion 21 and the first engaging portion 23 connected to both short side portions 21c and 21d. have That is, the lid member 20 has three engaging portions. However, the present invention is not limited to this, and the second engaging portion 24 may be continuously provided to the long side portion 21b on the opposite side with the fixing portion 22 and the top plate portion 21 interposed therebetween. Alternatively, the second engaging portion 24 may be omitted and a pair of first engaging portions 23 may be provided.

Next, operations for opening and resealing the container 100 will be described with reference to the drawings. FIG. 7 is a side view of the container 100 with the first engaging portion 23 and the second engaging portion 24 lifted. FIG. 8 is a bottom perspective view of the container 100 with the first engaging portion 23 and the second engaging portion 24 lifted. FIG. 9 is a side view of the container 100 showing a state in which the lid member 20 is opened and the resin sheet 30 is unsealed. FIG. 10 is a side view of the container 100 with the lid member 20 opened and the resin sheet 30 removed. FIG. 11 is a side view of the container 100 with the lid member 20 closed so that the top plate portion 21 is in contact with the flange portion 13. FIG. FIG. 12 is a side view of the container 100 with the lid member 20 resealing the container body 10. FIG.

In the following description, closing the opening 14 of the container body 10 that has been opened by peeling the resin sheet 30 from the flange portion 13 is referred to as resealing. When resealing with the lid member 20, the lid member 20 is locked so as not to be unintentionally opened.

As shown in FIG. 6 , in the container 100 , the resin sheet 30 is sealed on the upper surface of the flange portion 13 . The opening 14 of the container body 10 is sealed with a resin sheet 30 .

As a result, the resin sheet 30 has water resistance, gas barrier properties, etc., so foreign matter such as moisture, dust, and dust is prevented from entering the housing space 10S, and a hygienic state is maintained at the time of sealing. In addition, outflow of gases such as air and water vapor in the accommodation space 10S to the outside is also suppressed. As a result, drying of the contents is suppressed, and odor leakage to the outside or transfer of the odor to the contents can be suppressed.

When opening the container 100, first, the lid member 20 is opened. For this purpose, both first engagement portions 23 of the lid member 20 are lifted horizontally (see FIGS. 7, 8, etc.). Thereby, the slit 231 of the first engaging portion 23 is separated from the short side portion of the flange portion 13 and the resin sheet 30 . In other words, the short sides of the flange portion 13 and the resin sheet 30 are removed from the slits 231 .

Similarly, the second engaging portion 24 of the lid member 20 is lifted horizontally (see FIGS. 7, 8, etc.). Thereby, the slit 241 of the second engaging portion 24 is separated from the long side portion of the flange portion 13 and the resin sheet 30 . In other words, the long side portion of the flange portion 13 and the resin sheet 30 are removed from the slit 241 .

As a result, the lid member 20 is opened while only the adhesive portion 221 of the fixing portion 22 is fixed to the side wall portion 12 of the container body 10 (see FIG. 9). More specifically, by moving upward the top plate portion 21 of the lid member 20 with the first engaging portion 23 and the second engaging portion 24 being lifted, the top plate portion 21 is moved around the rear side. open. At this time, the adhesive portion 221 is fixed to the side wall portion 12, and the movable portion 222 rotates around the connecting portion (folding line L4 shown in FIG. 4) with the adhesive portion 221. As shown in FIG. Further, the top plate portion 21 rotates around the connecting portion (folding line L1 shown in FIG. 4) with the movable portion 222 .

Since the fixed part 22 has the movable part 222, the lid member 20 can be easily opened and the opening angle can be increased. In other words, it becomes easier to access the opening 14 when the lid member 20 is opened.

Then, as shown in FIG. 9, the resin sheet 30 is peeled off from the flange portion 13 with the lid member 20 opened. In the container 100 of the present embodiment, one of the corners of the resin sheet 30 may have a curved gripping portion (not shown) having a smaller radius than the other corners. The resin sheet 30 is peeled off from the flange portion 13 of the container body 10 by pinching the grip portion and lifting it upward. As a result, the container body 10 is unsealed (see FIG. 10).

By opening the container body 10 , the contents stored inside the storage space 10</b>S of the container body 10 can be taken out from the opening 14 . The resin sheet 30 is completely removed from the flange portion 13 of the container body 10 . After the resin sheet 30 is peeled off from the flange portion 13, the resin sheet 30 is no longer necessary.

Depending on the contents, the leftovers taken out may be stored in the storage space 10S. In such a case, the container body 10 is resealed with the lid member 20 to close the opening 14 .

Next, resealing of the container body 10 with the lid member 20 will be described. As shown in FIG. 11 , with the first engaging portion 23 and the second engaging portion 24 lifted, the lid member 20 is rotated so that the top plate portion 21 contacts the upper surface of the flange portion 13 .

Then, while the lower surface of the top plate portion 21 is in contact with the flange portion 13, the first engaging portion 23 and the second engaging portion 24 are bent downward. As a result, the short sides of the flange portion 13 are fitted inside the slits 231 of the first engaging portion 23 . Also, the long side of the flange portion 13 fits into the slit 241 of the second engaging portion 24 . In other words, the inner surface of the slit 231 of the first engaging portion 23 is engaged with the lower surface of the short side of the flange portion 13, and the inner surface of the slit 241 of the second engaging portion 24 is engaged with the lower surface of the long side of the flange portion 13. locked to.

That is, the bonding portion 221 of the fixing portion 22 is fixed by bonding to one side of the side wall portion 12 of the container body 10 which is rectangular in plan view. The second engaging portion 24 is engaged with the flange portion 13 formed on the remaining long side, and the first engaging portion 23 is engaged with each flange portion 13 formed on each short side. In this manner, the lid member 20 can close the opening 14 of the container body 10 once opened. That is, the lid member 20 can reseal the container body 10 .

The first engaging portion 23 and the second engaging portion 24 are engaged with the flange portion 13 , respectively, so that the lid member 20 is locked to the container body 10 at the time of resealing. As a result, even if an external force such as vibration or impact acts on the container 100, the lid member 20 is difficult to open.

By resealing the container body 10 with the lid member 20 in this manner, it is possible to prevent foreign matter such as water (liquid), dust, etc. from entering the housing space 10S of the container body 10 . As a result, even after the package is opened, the content can be stored while preventing contamination by foreign matter.

Further, after the container body 10 is resealed with the lid member 20, the lid member 20 allows the container body 10 to be unsealed according to the above-described procedure (see FIGS. 6 to 9). In other words, by using the lid member 20, the container 100 can be opened and resealed multiple times.

In addition, since the lid member 20 can be resealed, it is possible to reduce the waste amount of resin and reduce the environmental load compared to a structure having a separate resin outer lid.

It should be noted that the present invention is not limited to the configuration described above, and various modifications are possible, and configurations obtained by appropriately combining technical means disclosed in different configurations are also within the technical scope of the present invention. included.

INDUSTRIAL APPLICABILITY According to the present invention, the container can be used as a container that contains food or the like as a content and has a lid that can be opened and closed multiple times.

REFERENCE SIGNS LIST 100 container 10 container body 10S accommodation space 11 bottom 12 side wall 13 flange 14 opening 200 blank plate 20 lid member 21 top plate 21a long side 21b long side 21c short side 21d short side 211 projecting portion 22 fixing portion 221 adhesive portion 222 movable portion 23 first engaging portion 231 slit 24 second engaging portion 241 slit 30 resin sheet Ct1 cutting line Ct2 cutting line L1 folding line L2 folding line L3 folding line L4 folding line

Claims (4)

A lid material fitted to a bottomed cylindrical container body,
Formed by folding a paper blank board,
a top plate portion covering an opening formed at the upper end of the container body;
a plate-shaped fixing portion connected to a part of the end portion of the top plate portion and fixed to the outer surface of the container body;
a plate-like engaging portion connected to an end portion of the top plate portion different from the fixed portion;
A cover member, wherein a slit extending along the adjacent portion is formed in the portion of the engaging portion adjacent to the top plate portion. 2. The cover material according to claim 1, wherein at least one of said engaging portions is connected to an end portion on the opposite side of said fixing portion and said top plate portion. The top plate portion has a rectangular shape in plan view,
The fixing portion is connected to one side of the top plate portion,
3. The cover material according to claim 1, having three said engaging portions connected to each of the remaining sides of said top plate portion. a lid material according to any one of claims 1 to 3;
a cylindrical container body with a bottom on which the lid member is fitted;
a resin sheet sealed to a flange extending outward from an opening at the top of the container body,
The fixed portion is bent at a connection portion with the top plate portion and fixed to the outer surface of the container body,
A container, wherein the engaging portion is bent at a connecting portion with the top plate portion, and the slit is engaged with the lower surface of the flange portion to hold the cover member on the container body.

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