JP6492697B2 - Paper lid and container fused with it - Google Patents

Description

  The present invention relates to a paper-made paper lid that seals a container for storing a product, and relates to a paper lid that can be partially opened.

A paper lid that is used for a container having a flange and is made of a paper that is peeled off and opened, can be discarded as it is together with the rest of the contents without being washed.
However, when the paper lid is peeled off from the sealing portion and opened, it is difficult to peel off if the sealing strength is too strong, and paper backs are generated on the back side of the cardboard, which is not preferable in appearance. In addition, if the seal strength is too weak, there is a problem such as peeling off unexpectedly.

For such a problem, for example, in Patent Document 1,
A paper lid that seals the flange portion of the rectangular container with a seal portion that is substantially the same shape as the flange portion, and a handle piece with two score lines is provided at one corner of the lid, centered from the tip of the score line. The handle piece back half-cut line is applied, and the peripheral edge back half-cut line is provided along the inner edge of the seal portion outside the center side tip of the handle piece back half-cut line. A peripheral front half cut line having a constant width is provided on the outer side, a short preliminary back half cut line is provided on the center side at a half or less of the cut line, and the handle is provided to the center of the short preliminary back half cut line. A paper lid characterized by extending the back half-cut line for one piece is proposed.
In this method, there is no problem such as paper smearing in the seal portion, and it can be opened cleanly and reliably without using scissors or a knife.

  However, in Patent Document 1, the entire opening of the container can be opened at the time of opening. However, when it is partially opened by half, an inadvertent tear is likely to occur, and the remaining lid is deformed. Many problems have arisen, such as the soiling of the surroundings caused by the removal of items and the difficulty of storing the remaining contents.

Japanese Patent No. 3924986

  Then, although the opening part of a container is closed integrally, it is a subject of this invention to obtain the paper lid | cover which can be opened in the state which divided the opening part separately separately.

The invention according to claim 1 of the present invention is
A paper lid having a substantially square outer shape to be sealed on the flange portion of the container,
Divided into two by the central dividing table half-cut line that bisects the square area of the outer shape,
Each of the divided lids is provided with a handle piece by two cut lines,
Apply a half cut line for the grip piece inside the root end of the cut line of the handle piece,
Furthermore, two parallel center back half-cut lines having a certain width are given to the center split table half-cut line, and connected to the back half-cut line for the handle piece,
Two parallel handle front half cut lines having a certain width are provided outside the back half cut line for the handle piece,
Peripheral back half-cut line having a certain width in parallel along the inner edge of the flange part and connected to the center back half-cut line and the back half-cut line for the handle piece,
The paper lid is characterized in that a peripheral front half-cut line is formed on the outer side of the peripheral back half-cut line and connected to the cut line .

The invention according to claim 2 of the present invention is
2. The paper lid according to claim 1, wherein the handle pieces are provided at alternate positions at the intersections of the center-partitioned table half-cut line and the outer shape.

The invention according to claim 3 of the present invention is
3. The paper cover according to claim 1 or 2, wherein the central divided table half-cut line is divided into two by the table half-cut line at the center of two opposite sides of the square of the outer shape.

Wherein the invention according to claim 4 of the present invention, at the corner adjacent to the bunch hand piece, the periphery table half pieces lines, and that both peripheral back half pieces line is formed than the other corner with a large radius of the curve The paper lid according to any one of claims 1 to 3 .

In the invention according to claim 5 of the present invention, between the notch line of the handle piece and the handle table half-cut line parallel to the notch line, from the middle of the notch line, the angle of 45 degrees or less with respect to the notch line of the handle piece. The paper lid according to any one of claims 1 to 4 , wherein an auxiliary surface half-cut line is provided at an angle.

The invention according to claim 6 of the present invention, the auxiliary table half slice line of the handle piece, the intersection near the score lines of the handle piece, in claim 5, characterized in that the cut's line the paper lid The paper lid described.

The invention according to claim 7 of the present invention is a container in which the paper lid according to any one of claims 1 to 6 is fused.

The paper lid of the present invention can be opened by dividing the opening of the container opening. Therefore, when the contents are solid, it is possible to take out only half and store the other half.
In addition, when the contents are liquid, the opening can be prevented from opening completely, so that it is difficult to spill and the contents are not easily melted or cooled.
Further, the two openings can be opened either, and the opening order can be freely selected.

It is the top view and front view which showed 1st Embodiment of the container which melt | fused the paper lid | cover of this invention. It is the elements on larger scale in the vicinity of the handle in 1st Embodiment of the paper lid of this invention, and the expanded sectional view near the opened paper lid. It is the figure which showed the process of opening in the longitudinal cross-sectional view which looked at the container of 1st Embodiment of the container which melt | fused the paper lid | cover of this invention from the right side. It is the top view and front view which showed 2nd Embodiment of the container which melt | fused the paper lid | cover of this invention. It is the top view and front view which showed 3rd Embodiment of the container which melt | fused the paper lid | cover of this invention. It is the top view and front view which showed 4th Embodiment of the container which melt | fused the paper lid | cover of this invention. It is the top view and front view which showed 5th Embodiment of the container which melt | fused the paper lid | cover of this invention. It is the top view and front view which showed 6th Embodiment of the container which melt | fused the paper lid | cover of this invention.

Hereinafter, embodiments of the paper lid of the present invention will be described in detail with reference to the drawings.
The paper lid 2 of the present invention is a paper lid 2 that seals the flange 11 of the container 1 having a quadrangular fusion surface as shown in FIGS. 1-1, 1-2, and 2-1. The paper lid 2 has substantially the same outer shape as the flange 11 of the container 1.
The paper lid 2 is divided into two by a central dividing table half-cut line 21 that bisects the square area of the outer shape. In the first embodiment, the center division table half-cut line is divided into two by the table half-cut line at the center of two opposite sides of the square of the outer shape.
Of course, the center cut table half-cut line may not be a line that bisects completely. Depending on the contents, a center split table half-cut line may be provided at different ratio positions on the left and right, such as 2: 1.

In addition, the handle pieces are provided at staggered positions at the intersections of the center divided table half-cut line and the outer shape, and the handle pieces 23 are respectively formed on the divided lids by two cut lines 22. Is provided.
On the inner side of the base end portion of the cut line 22 of the handle piece 23, a back half cut line 24 for the handle piece is provided.

Further, two parallel center back half-cut lines 25 having a certain width are applied to the center split table half cut line 21 and connected to the handle piece back half cut line 24.
Moreover, the auxiliary table half-cut line 29 is formed between the cut line of the handle piece and the peripheral surface half-cut line parallel to the cut line at an angle of 45 degrees or less with respect to the handle piece cut line from the middle of the cut line. And the vicinity of the intersection with the cut line of the handle piece was defined as a cut line.
In addition, two parallel handle piece front half-cut lines 26 having a certain width were provided outside the handle piece back half-cut line 24.
Then, a peripheral back half-cut line 27 having a constant width was provided in parallel along the flange inner edge 111 and connected to the center back half-cut line 25 and the handle piece back half-cut line 24.
Further, a peripheral front half-cut line 28 is provided outside the peripheral back half-cut line 27 and connected to the cut line 22 or the grip piece back half-cut line 24. The position of the peripheral front half-cut line 28 may be outside or inside the flange portion inner edge 111, but the peripheral back half-cut line 27 is a position that does not go outside the position of the flange inner edge 111. Provided.

  In the above example, it is assumed that a container having a quadrangular fused portion is a quadrangular paper container, but a quadrangular plastic container may be used. However, paper is preferable because of environmental problems related to resources and waste.

2, 3, and 2-2, the paper lid 2 of the present invention is unsealed by pinching the handle piece 23 by hand and pulling it up, according to the cut line 22, and the flange portion 11. Remove from.
When the handle piece 23 is further pulled up, the handle surface is lifted according to the handle piece back half-cut line 24, and the handle is connected to the auxiliary table half-cut line 29 while breaking along the auxiliary table half-cut line 29. The half cut line 26 on one side also starts to break.
Here, each front half-cut line and back half-cut line are provided with a certain width, so that the paper of the base material breaks while being delaminated inside the layer.
The width of the front half-cut line and the back half-cut line is set to 0.5 to 3 mm.
Since it breaks while delamination, the center back half-cut line 25 and the peripheral back half-cut line 27 connected to the back half-cut line 24 for the handle piece are turned up, and as a result, the front side is also connected to the half-cut line 26 on the handle piece. The center split table half-cut line 21 and the peripheral table half-cut line 28 are further broken continuously.
According to this method, a paper lid can be provided that can be surely opened with a clean appearance without a paper smudge or the like in the seal portion of the paper lid. In particular, since the handle piece 23 is composed of the two cut lines 22, the startability of opening can be improved and the opening can be easily performed.

Also, the corners of the flange are connected with a curve so that the corners are separated from the planned half-cut line so that the lid is not cut off halfway.
In particular, at the corner adjacent to the handle piece 23 that does not intersect with the central split table half-cut line 21, both the peripheral front half-cut line 28 and the peripheral back half-cut line 27 are formed with large radius curves. This radius is preferably not less than 50 percent and less than 95 percent of the length of the small divided flange.
This is because the peripheral edge half-cut line 28 and the peripheral back half-cut line 27 are particularly easily applied, so that the cover member connected to the handle piece 23 is not cut.
In the opened state of the lid, as shown in FIG. 2-2, the front and back half-cut lines are shifted, and half of the lid 2 is opened as shown in FIG.

  FIG. 4 shows a second embodiment in which the handle piece 23 has an angle of 45 degrees with respect to the flange, which is partially turned easily.

  FIG. 5 shows a third embodiment in which the angle of the handle piece 23 is made parallel to the center dividing table half-cut line, and is partially easily turned. The connecting portion of the handle piece 23 and the peripheral front half-cut line 28 and the peripheral back half-cut line 27 is connected by a curve so that the handle piece 23 is not cut and the remaining half of the lid is easily left. ing.

  FIG. 6 shows a fourth embodiment in which the position of the handle piece 23 is provided at the corner of the flange 11 so that it can be opened more easily.

  FIG. 7 shows that when the half lid is opened, it can be opened in a diagonal line of the flange, and the center split table half-cut line 21 and the center split back half-cut line 25 are provided in parallel to the diagonal line of the flange. This is a fifth embodiment example. In the case of this lid, even if the contents are large, it is easy to put out, and when the contents are tangled with the contents, it is difficult to spill.

  FIG. 8 shows that when the half lid is opened, it can be opened into a trapezoidal shape, and the central divided front half-cut line 21 and the central divided back half-cut line 25 are parallel to the diagonal of the flange. It is the example of 6th Embodiment provided. In the case of this lid, even if the contents are long, it is easy to take out and has a feature that it is difficult to spill.

The present invention is as described above, and the container body may be made of paper, a plastic sheet formed by vacuum forming or pressure forming, or injection molded.
In the case of paper, the basis weight is 200 g / m ² to 800 g / m ² , the density is 0.6 to 1.1 g / cm ³ , and the back of the paper is a thermoplastic resin such as polyethylene. It is preferable to use a laminated sheet that is covered with a film, punched with a big blade, and bonded together.

The base paper used for the paper lid of the present invention is a paperboard having a basis weight of 200 g / m ² to 500 g / m ² and needs to be printed on the surface, so at least one side is white coated manila, coated ball, ivory Etc. can be used. Furthermore, since it is necessary to seal the flange portion 11 of the square paper container by heat sealing or the like, the back surface is excellent in sealability such as a thin polyethylene film, ethylene / vinyl acetate copolymer, or polypropylene film of 15 μm to 80 μm. A laminated sheet with a laminated thermoplastic film is used. These thermoplastic films also take into account the hygiene when the contents are food, and also serve as a moisture barrier.
These can be easily manufactured using a dry lamination machine or an extruder lamination machine.
Further, since the handle piece back half-cut line 24 is provided on the extension of the cut line 22 of the handle piece 23, when the handle piece 23 is pulled up as described above, the lid surface is broken according to the handle piece back half-cut line 24, and at first glance. Since the opened tear mark remains, the paper lid 2 can be provided with virginity.

The width between the peripheral back half-cut line 27 and the peripheral front half-cut line 28 is 1 to 3 mm, although it varies depending on the size of the paper lid 2. If it is larger than 3 mm, the delamination of the paperboard does not go smoothly, and if it is smaller than 1 mm, each edge enters the peripheral back half cut line 27 and the peripheral front half cut line 28 from the front and back of the lid. However, there is a concern that the two may overlap each other.
This is the same for the distance between the center divided back half-cut line 25 and the center divided table half-cut line 21 and the distance between the handle piece back half-cut line 24 and the handle piece front half-cut line 26.

The same applies to the cut line 22 formed by the handle piece 23, and the cut line 22 and the subsequent back half-cut line 24 for the handle piece may be shifted vertically and horizontally and may not be connected as a straight line. If they are not connected linearly in this way, they will be displaced from the cut line 22 and broken, and reliable opening will not be possible.
In order to solve such a problem, in the present invention, the handle piece cut line 22 is inserted from the middle of the cut line between the cut line 22 of the handle piece and the half cut line 26 of the handle piece parallel to the cut line. The auxiliary table half-cut line 29 was made at an angle of 45 degrees or less.
Further, in the auxiliary table half-cut line 29 of the handle piece, the vicinity of the intersection with the cut line 22 of the handle piece is defined as a cut line.
For this reason, even if the cutting position is shifted, the position where the breakage is surely made is connected from the handle piece 23 to the peripheral surface half-cut line 28, and the opening is ensured.
The reason why the auxiliary surface half-cut line 29 is set to 45 degrees or less with respect to the cut line 22 is that if it is 45 degrees or more, the direction of break to break is bent in the vertical direction and may be in the direction of coming off the outside as it is. Because.

  The paper lid 2 of the present invention is sealed by a flat flange portion 11 of a square paper or plastic container, but the flange portion is flat even if the container is round, triangular or pentagonal. Can be used.

The present invention is as described above, and it is easy to open only half of the lid and leave the rest. Moreover, since it can be opened from either side, it has a high degree of freedom.
In addition, the paper lid of the present invention can be a paper lid that can be opened reliably and cleanly with no appearance of paper missing in the seal portion. Furthermore, since the handle piece is made of two cut lines, the startability of opening can be improved and the opening can be easily performed.
In addition, since the back half-cut line for the handle piece is provided from the back on the extension of the handle piece, the lid surface is torn according to the back half-cut line for the handle piece, and the opened tear mark remains at first glance. It is possible to make a paper lid excellent in the above.
In addition, even when the position registration of the cut line and the back half-cut line for the handle piece does not match in the manufacturing process, the cut is made along the short preliminary back half-cut line, thereby enabling reliable opening.
And since the preliminary front half-cut line was added to the outer half-cut line on the outer side of the two handle piece back half-cut lines in parallel to the peripheral front half-cut line, at the time of opening, it is separated from the back half-cut line for the handle piece. Even if it is torn, the tear is corrected by the preliminary half-cut line and cut by being connected to the peripheral half-cut line, so that the opening can be made more reliable.
Moreover, it can be set as the paper cover which can be opened more easily by providing either one of two cut lines extending in the center direction to the vicinity of the peripheral surface half-cut line.
Therefore, the paper or plastic container to which the paper lid of the present invention is bonded is easily opened with only one handle when the half is opened, and the remaining half is easily left.
In addition, when taking out the other half, it can be easily removed by pulling up the next handle and opening it, and since only the cutting blade is changed in the process so far, the productivity is high,
The merit of the present invention is great, such as an increase in cost.

1 ······················································································································ Paper lid 21 ··· Center cut table half-cut line 22 ··· Cut line 23 ··· Handle piece 24 ········· ····························· 26・ Surrounding table half-cut line 29 ... ・ ・ ・ ・ ・ Auxiliary table half-cut line

Claims (7)

A paper lid having a substantially square outer shape to be sealed on the flange portion of the container,
Divided into two by the central dividing table half-cut line that bisects the square area of the outer shape,
Each of the divided lids is provided with a handle piece by two cut lines,
Apply a half cut line for the grip piece inside the root end of the cut line of the handle piece,
Furthermore, two parallel center back half-cut lines having a certain width are given to the center split table half-cut line, and connected to the back half-cut line for the handle piece,
Two parallel handle front half cut lines having a certain width are provided outside the back half cut line for the handle piece,
Peripheral back half-cut line having a certain width in parallel along the inner edge of the flange part and connected to the center back half-cut line and the back half-cut line for the handle piece,
A paper lid characterized in that a semi-periphery line is formed on the outer side of the peripheral back half-cut line and connected to the cut line .   2. The paper lid according to claim 1, wherein the handle pieces are provided at alternate positions at the intersection of the half-cut line of the center division table and the outer shape.   3. The paper lid according to claim 1, wherein the central divided table half-cut line is divided into two by the table half-cut line at the center of two opposite sides of the square of the outer shape. At the corner adjacent to the bunch hand piece, the periphery table half pieces lines, and in any one of claims 1 to 3, characterized in that both the peripheral back half pieces line was formed with a large radius of the curve than the other corners The paper lid described. Auxiliary table half-cut line was made between the cut line of the handle piece and the handle table half-cut line parallel to the cut line at an angle of 45 degrees or less to the cut line of the handle piece from the middle of the cut line. The paper lid according to any one of claims 1 to 4 . 6. The paper lid according to claim 5 , wherein, in the auxiliary front half-cut line of the handle piece, the vicinity of the intersection with the cut line of the handle piece is a line obtained by cutting the paper lid. A container, wherein the paper lid according to claim 1 is fused.

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