Paper containers

A paper container with vertical and horizontal slits in its side surfaces addresses the issue of skewer instability by using elastic holding pieces to securely retain skewers, preventing fall-out during handling.

JP3250825UActive Publication Date: 2025-04-02KITAHARA SANGYO
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Patent Information

Application Number
JP2025000367U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-04-02
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

Existing paper containers fail to stably hold skewers protruding from food items like yakitori and frankfurters due to loose fitting in grooves, leading to potential skewer displacement and fall-out during handling.

Method used

A paper container with vertical and horizontal slits in its side surfaces forming holding pieces that sandwich skewers, utilizing elastic retention to prevent skewer movement and ensure stability.

Benefits of technology

The container effectively prevents skewers from falling out by securely holding them between vertical edges and elastic holding pieces, maintaining stability during transport.

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Abstract

To provide a paper container capable of stably holding skewered foods such as yakitori and frankfurters, the skewers of which protrude from the food ingredients. [Solution] This paper container 1 has an open top surrounded by side surfaces 11, 12 rising from the bottom surface, and side surface 12 has a vertical slit extending downward from the upper edge and a horizontal slit extending left and right intersecting the vertical slit, thereby forming a holding piece that is pushed open left and right from the vertical slit, and the paper container 1 is characterized in that the skewer 22 of the skewer 2 stored on the bottom surface is passed through the vertical slit and protrudes outward, and the vertical edge of the holding piece is pressed against the skewer 22 to hold the skewer 2.
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Description

[Technical field]

[0001] This invention relates to a paper container that can stably hold skewers stored on its bottom surface. [Background technology]

[0002] Skewers with skewers protruding from the food, such as yakitori and frankfurters, are stored on the bottom of a container with the top open, with the skewers protruding from the container. However, if the skewers move freely, the container cannot hold the skewers stably, and in some cases the skewers may fall out of the container. To address this issue, a container has been proposed that has a groove on the side through which the skewers can pass and through which they can protrude (Patent Document 1). The groove (groove portion) of the container disclosed in Patent Document 1 is used when pulling out only the skewers from the food, and the skewers are stored on the bottom of the container, with the skewers passing through the groove and protruding from the container (see Patent Document 1, Figure 4). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication No. 3175492 Summary of the Invention [Problem to be solved by the invention]

[0004] In the container disclosed in Patent Document 1, the skewers of food placed on the bottom are simply fitted into the grooves on the side from above, and the fit of the skewers in the grooves is loose, so the skewers are not prevented from moving out of the grooves. In particular, the container disclosed in Patent Document 1 requires the food to be pressed against the side to pull out the skewers, so the skewers tend to move in a direction perpendicular to the side, and the skewers may unexpectedly fall out of the container. Therefore, we investigated a paper container that can stably hold skewers that protrude from the food, such as yakitori and frankfurters. [Means for solving the problem]

[0005] As a result of these studies, what was devised was a flat, approximately rectangular paper container formed by folding a paper sheet, with an open top surrounded by side surfaces that rise from the bottom, and the side surfaces have vertical slits extending downward from the upper edge and horizontal slits that intersect the vertical slits and extend in the left-right direction, thereby forming a holding piece that is pushed open in the left-right direction from the vertical slit, and the skewers of skewers stored on the bottom are passed through the vertical slits and protrude outward, thereby pressing the vertical edge of the holding piece against the skewers to hold the skewers.

[0006] The paper container to which this invention is applied can be of any shape of bottom and side, or any number of sides. If the bottom is square or polygonal and has multiple sides, at least one side is provided with a set of vertical and horizontal slits, but multiple or all sides may have one or more sets of vertical and horizontal slits. The vertical and horizontal slits are basically straight cutting lines or slits, but they may also be grooves that make the sides thinner to make them easier to cut, or curved, wavy, or folded.

[0007] The vertical slit may extend downward at an angle, but it is preferable that it extends straight downward. The horizontal slit may extend left and right from the middle of the vertical slit, but it is preferable that it extends left and right from the lower end of the vertical slit, intersecting the vertical slit. In the case of a vertical slit extending straight downward, it is preferable that the horizontal slit extends left and right. The vertical edge of the retaining piece is the edge of the retaining piece formed by the vertical slit. After the retaining piece is pushed open, the side surface is formed with a vertical edge due to the vertical slit and a horizontal edge due to the horizontal slit.

[0008] The holding piece is connected to the side except for the vertical and horizontal slits, and is bent or folded open within the range of the length of the horizontal slit extending from the vertical slit, and is in an elastic state biased in the closing direction. If the horizontal slit extends from the vertical slit to either the left or right, a single holding piece is formed. The skewer of the skewer is held by being sandwiched between the vertical edge of the side formed by the vertical slit and the vertical edge of the holding piece in the elastic state. If the horizontal slit extends in both the left and right directions relative to the vertical slit, two holding pieces are formed that open to both the left and right from the vertical slit. The skewer of the skewer is held by being sandwiched between the vertical edges of the left and right holding pieces in the elastic state. Effect of the Invention

[0009] In the paper container of the present invention, the skewers with food placed on the bottom are held between the vertical edge of the side formed by the vertical slit and the vertical edge of the elastic holding piece, or between the vertical edges of the left and right holding pieces in an elastic state. This eliminates the risk of the skewers falling out of the paper container, and prevents problems such as the skewers falling out of the paper container when carrying the paper container containing the skewers. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing an example of a paper container to which the present invention is applied. [Diagram 2] FIG. 2 is a partially enlarged perspective view showing a side portion on which vertical and horizontal slits are provided. [Diagram 3] 13 is a partially enlarged perspective view showing a portion where a pair of holding pieces are opened to the left and right. FIG. [Figure 4] FIG. 2 is a perspective view of the paper container of this embodiment, showing the state in which the skewer is held in place by the holding piece. [Diagram 5] 1 is a partially enlarged perspective view showing the vicinity of a holding piece in a used state in which a skewer of food is held in a pressed state by the holding piece. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiment of the present invention will be described with reference to the drawings. As shown in Fig. 1, the paper container 1 to which the present invention is applied has a bottom surface 16 that is rectangular in plan view, and side surfaces 11, 12 that are slightly open and raised from the long and short sides of the bottom surface 16, respectively, to form a tray-like container with an open top. The paper container 1 of this example is a paper container formed by folding a paper sheet (not shown) as in the conventional case, and is formed by overlapping and gluing the folded pieces provided on both ends of the long side surface 11 to the short side surface 12 from the outside.

[0012] As shown in Fig. 2, the paper container 1 of the present invention is characterized in that, for example, on the side surface 12 on the short side, a vertical slit 13 extending straight down from the upper edge of the side surface 12 to the middle of the side surface 12, and a horizontal slit 14 extending in the left-right direction with the same length from the lower end of the vertical slit 13 are provided. In the paper container 1 of this example, the vertical slit 13 and the horizontal slit 14 are provided only on one of the side surfaces 12 on the short side, but the vertical slit 13 and the horizontal slit 14 may be provided on both side surfaces 12 on the short side, or the vertical slit 13 and the horizontal slit 14 may be provided on the side surface 11 on the long side as long as food can be placed on the bottom surface 16.

[0013] As shown in Fig. 3, the side surface 12 provided with the vertical slit 13 and the horizontal slit 14 forms holding pieces 15 divided into left and right from the vertical slit 13, and each of the left and right holding pieces 15 can be pushed open within the range of the length of the horizontal slit 14. In this example, the holding pieces 15 are pushed open as a whole without bending, with folding lines extending from both ends of the horizontal slit 14 almost parallel to the vertical slit 13. The holding pieces 15 may also be pushed open so that they curve continuously from the side surface 12, without folding lines being set.

[0014] The holding pieces 15 pushed open to the left and right each have a vertical edge 151 formed by the vertical slit 13, and the skewer 22 of the skewer 2 (see Figs. 4 and 5 below) protruding outward through the vertical slit 13 is sandwiched between the vertical edges 151 of both holding pieces to fix the position of the skewer 22 and hold the skewer 2. After the holding pieces 15 are pushed open, the horizontal edges 141 of the side surfaces 12 formed by the horizontal slits 14 can hold the skewer 22 of the skewer 2 sandwiched between the vertical edges 151 of both holding pieces, and the state in which the skewer 22 is sandwiched between the vertical edges 151 of both holding pieces is kept stable.

[0015] 4 and 5, the paper container 1 of this example is suitable for holding a skewer 2 having a long frankfurter as food ingredient 21 placed on the bottom surface 16 and a skewer 22 protruding from the side surface 12 having a vertical slit 13 and a horizontal slit 14. The food ingredient 21 is placed on the bottom surface 16 by pushing open the left and right holding pieces 15 with the skewer 22 protruding outward from the side surface 12 through the vertical slit 13. The skewer 2 is stably held in the paper container 1 of this example by sandwiching the skewer 22 protruding outward from the side surface 12 between the vertical edges 151 of the holding pieces 15 in an elastic state pushed open to the left and right.

[0016] It is sufficient that the holding piece 15 is pushed open by the skewer 22 in an elastic state and holds the skewer 22 with its vertical edge 151 pressed against it. For this reason, in addition to being pushed open outward and in the same direction on the side surface 12 as in this example, it may also be pushed open inward and in the same direction on the side surface 12, or pushed open alternately in both the inner and outer directions on the side surface 12. When the skewer 22 of the skewer 2 is made of wood (this example), the holding piece 15 is made of paper, and the vertical edge 151 pressed against the skewer 22 prevents the skewer 22 from moving by friction. This friction of the holding piece 15 against the skewer 22 also contributes to maintaining the state in which the skewer 22 is sandwiched by the holding piece 15. [Explanation of symbols]

[0017] 1. Paper containers 11 Long side 12 Short side 13 Vertical cut 14 Horizontal cut 141 Horizontal edge 15 Holding piece 151 vertical edge 16 bottom surface 2 skewers 21 food ingredients 22 skewer

Claims

1. In a paper container formed by folding a paper sheet, It has an open top surrounded by sides rising from the bottom, The side surface is provided with a vertical slit extending downward from the upper edge, and a horizontal slit extending in the left-right direction intersecting the vertical slit, thereby forming a holding piece that is pushed open in the left-right direction from the vertical slit, This paper container is characterized in that the skewers are placed on the bottom and stored, and are held by pressing the vertical edges of the holding pieces against the skewers in a state in which the skewers are passed through the vertical slits and protrude outward.

2. The horizontal slits extend in both directions relative to the vertical slits, 2. The paper container according to claim 1, wherein the holding piece is formed of two pieces that open to the left and right from the vertical slit.

Citation Information

Patent Citations

  • container

    JP3175492U