JP3236222U - Cushioning sheet and cushioning sheet set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning sheet capable of appropriately protecting the contents while reducing the used area of a base paper.
SOLUTION: A cushioning sheet according to one aspect of the present invention is connected to a side panel arranged along an inner surface of a side wall of a box body and a side edge of the side panel via an easy-to-bend line, and is connected to the box body. An end panel arranged along the inner surface of the end wall, a first flap extending from the upper edge of the side panel and bent parallel to the bottom wall of the box, and an extension from the upper edge of the end panel, the bottom. It has a second flap that can be bent parallel to the wall, the first flap and the second flap have the same protrusion length, and the first flap is an isospex with a base angle of 45 ° with the upper edge of the side panel as the base. A triangle or an isobaric trapezoid with the upper edge of the side panel as the lower base and a base angle of 45 ° on the lower base side, and the second flap has a base angle of 45 ° with the upper edge of the end face panel as the base. An equilateral triangle or an isobaric trapezoid with the upper edge of the end face panel as the lower base and a base angle of 45 ° on the lower base side.
[Selection diagram] Fig. 1

Description

The present invention relates to a cushioning sheet and a cushioning sheet set.

Boxes assembled from corrugated cardboard sheets and the like are used for storing and transporting articles. A buffer may be placed on the box to protect the contents. The shock absorber includes four side plates arranged along the inner surface of the side wall and the end wall of the box body, and an annular frame portion connected to the upper edge of the side plates and arranged parallel to the bottom wall of the box body. And a plurality of flaps extending from the peripheral edge of the opening of the frame portion are provided, and a flexible sheet is attached to the frame portion so as to close the opening (Patent Document 1). reference).

Japanese Unexamined Patent Publication No. 2012-35556

In Patent Document 1, an article contained in a box is sandwiched between a pair of shock absorbers from above and below, and the article is held between flexible sheets to protect the article from impact or mechanical pressure. Are listed.

However, the conventional shock absorber as described in Patent Document 1 has a structure in which four side plates extend from the outer peripheral edge of the annular frame portion, and the area of the base paper used for the shock absorber tends to be large. ..

The present invention has been made based on such circumstances, and an object of the present invention is to provide a cushioning sheet capable of appropriately protecting the contents while reducing the used area of the base paper.

The cushioning sheet according to one aspect of the present invention is a box having a square tubular portion having a pair of facing side walls and a pair of facing end walls, and a bottom wall that closes the lower opening of the square tubular portion. A cushioning sheet that is placed inside the body and assembled into a shock absorber that supports the contents, and has a side panel that has an upper edge parallel to the bottom wall and is arranged along the inner surface of the side wall, and the above. An end face panel that has an upper edge parallel to the bottom wall, is connected to the side edge of the side panel via an easy bend line, and is arranged along the inner surface of the end wall, and extends from the upper edge of the side panel. The first flap and the second flap are provided with a first flap that is extended and bent in parallel with the bottom wall, and a second flap that extends from the upper edge of the end face panel and is bent in parallel with the bottom wall. The first flap has an isosceles triangle with a base angle of 45 ° with the upper edge of the side panel as the base, or the bottom of the lower bottom side with the upper edge of the side panel as the lower base. The second flap is an equilateral trapezoid with an angle of 45 °, and the second flap is an isosceles triangle with a base angle of 45 ° with the upper edge of the end face panel as the base, or a lower base with the upper edge of the end face panel as the lower base. It is an isobaric trapezoid with a base angle of 45 ° on the bottom side.

The cushioning sheet according to one aspect of the present invention can appropriately protect the contents while reducing the used area of the base paper.

FIG. 1 is a schematic plan view showing a buffer sheet according to an embodiment of the present invention. FIG. 2 is a schematic perspective view showing a state in which a shock absorber formed by assembling the shock absorber sheet of FIG. 1 is arranged inside a box. FIG. 3 is a schematic plan view showing a cushioning sheet set in which two cushioning sheets of FIG. 1 are combined. FIG. 4 is a sectional view taken along line IV-IV of FIG. FIG. 5 is a schematic plan view showing a cushioning sheet having a form different from that of the cushioning sheet of FIG.

[Explanation of Embodiment of the present invention]
First, embodiments of the present invention will be listed and described.

The cushioning sheet according to one aspect of the present invention is a box having a square tubular portion having a pair of facing side walls and a pair of facing end walls, and a bottom wall that closes the lower opening of the square tubular portion. A cushioning sheet that is placed inside the body and assembled into a shock absorber that supports the contents, and has a side panel that has an upper edge parallel to the bottom wall and is arranged along the inner surface of the side wall, and the above. An end face panel that has an upper edge parallel to the bottom wall, is connected to the side edge of the side panel via an easy bend line, and is arranged along the inner surface of the end wall, and extends from the upper edge of the side panel. The first flap and the second flap are provided with a first flap that is extended and bent in parallel with the bottom wall, and a second flap that extends from the upper edge of the end face panel and is bent in parallel with the bottom wall. The first flap has an isosceles triangle with a base angle of 45 ° with the upper edge of the side panel as the base, or the bottom of the lower bottom side with the upper edge of the side panel as the lower base. The second flap is an equilateral trapezoid with an angle of 45 °, and the second flap is an isosceles triangle with a base angle of 45 ° with the upper edge of the end face panel as the base, or a lower base with the upper edge of the end face panel as the lower base. It is an isobaric trapezoid with a base angle of 45 ° on the bottom side.

The cushioning sheet is usually used as a set of two. More specifically, the two shock absorbers formed by assembling the shock absorber sheet, the first flap and the second flap are parallel to the bottom wall of the box body, respectively, and their tip edges are in plan view. It is used by arranging it so that it protrudes toward the center of the box. In the cushioning sheet, since the first flap and the second flap are isosceles triangles or isosceles trapezoids, the first flap and the second flap are arranged in parallel with the bottom wall of the box body. In this state, a gap is unlikely to occur between the side edges of the first flap and the second flap. Therefore, the cushioning sheet can appropriately protect the contents in the box by accommodating the contents in the box from above the first flap and the second flap. In the cushioning sheet, the first flap directly extends from the upper edge of the side panel, and the second flap directly extends from the upper edge of the end face panel, so that the area used for the base paper can be reduced. Easy to make small.

The first flap is an isosceles trapezoid, the second flap is an isosceles triangle, and the first flap and the second flap cover half the area of the bottom wall in a plan view. It is good to be arranged like this. As described above, the first flap is an isosceles trapezoid, the second flap is an isosceles triangle, and the first flap and the second flap are 1/2 of the bottom wall in a plan view. By arranging so as to cover the area of the box, the contents can be more appropriately protected inside the box.

It is preferable that the lower edge of the side panel is provided with a first recess having the same shape as the first flap, and the lower edge of the end face panel is provided with a second recess having the same shape as the second flap. As described above, the lower edge of the side panel is provided with the first recess having the same shape as the first flap, and the lower edge of the end face panel is provided with the second recess having the same shape as the second flap. Therefore, when a plurality of the buffer sheets are formed by die-cutting from one base paper, the first recess and the second recess of one buffer sheet are formed by punching the other buffer sheet. Since the 1st flap and the 2nd flap can be formed, it is easy to reduce the used area of the base paper and promote resource saving.

The cushioning sheet may be composed of the side panel, the end panel, the first flap and the second flap. The cushioning sheet is composed of the side panel, the end surface panel, the first flap and the second flap, thereby appropriately protecting the contents and easily and surely reducing the used area of the base paper. Can be done.

The cushioning sheet set according to another aspect of the present invention includes a pair of cushioning sheets.

Since the cushioning sheet set includes the pair of cushioning sheets, the contents can be appropriately protected while reducing the used area of the base paper.

In the present invention, "upper" means the upper part in a general usage mode in which a buffer body formed by assembling a cushioning material sheet is arranged inside the box, and "lower" means the upper part in the box body. Means below in the placed general usage. The “isosceles triangle” is not limited to a strict isosceles triangle, and includes, for example, a structure in which a recess, a notch, or the like is formed in a part of the isosceles, or a structure in which the isosceles is curved. The "isosceles trapezoid" is not limited to a strict isosceles trapezoid. include.

[Details of the Embodiment of the present invention]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

[First Embodiment]
<Cushioning sheet>
As shown in FIG. 2, the cushioning sheet 10 of FIG. 1 closes a square tubular portion having a pair of facing side walls 110 and a pair of facing end walls 120, and a lower opening of the square tubular portion. It is arranged in a box body 100 having a bottom wall 130 and assembled into a shock absorber 20 that supports the contents. More specifically, the shock absorber 20 formed by assembling the shock absorber sheet 10 is arranged corresponding to one side wall 110 and one end wall 120 of the box body 100. Further, in the box body 100, another buffer body 20 having the same shape as the buffer body 20 is arranged corresponding to the other side wall 110 and the other end wall 120. That is, the buffer 20 is used as a set of two to protect the contents arranged in the box 100.

The cushioning sheet 10 has an upper edge 11a parallel to the bottom wall 130, a side panel 11 arranged along the inner surface of the side wall 110, and an upper edge 12a parallel to the bottom wall 130, and has a side surface. The end face panel 12 which is connected to the side edge of the panel 11 via an easy-to-bend line 13 and is arranged along the inner surface of the end wall 120, extends from the upper edge 11a of the side panel 11 and is bent in parallel with the bottom wall 130. The first flap 14 is provided, and the second flap 15 extending from the upper edge 12a of the end face panel 12 and being bent in parallel with the bottom wall 130 is provided. Easy-to-bend lines are provided at the boundary line between the side panel 11 and the first flap 14 and the boundary line between the end surface panel 12 and the second flap 15, respectively. Easy-to-fold lines 13 arranged at the boundary between the side panel 11 and the end surface panel 12, easy-to-fold lines arranged at the boundary between the side panel 11 and the first flap 14, and the end surface panel 12 and the second flap 15. The specific configuration of the easily bendable line arranged on the boundary line of the sheet is not particularly limited, and examples thereof include a ruled line formed by pressing one side of the sheet.

The protrusion length L1 of the first flap 14 and the protrusion length L2 of the second flap 15 are equal to each other. That is, the distance between the upper edge 11a of the side panel 11 and the tip end portion of the first flap 14 in the extension direction is equal to the distance between the upper edge 12a of the end face panel 12 and the tip end portion of the second flap 15 in the extension direction. According to this configuration, with the pair of buffers 20 arranged in the box body 100, a gap between the tips of the first flap 14 and the second flap 15 (formed in the center of the bottom wall 130 in a plan view). It is easy to adjust the gap to be obtained).

The first flap 14 is an isosceles triangle having a base angle of 45 ° with the upper edge 11a of the side panel 11 as the base, or an isosceles triangle having a base angle of 45 ° with the upper edge 11a of the side panel 11 as the lower base. It is an isosceles trapezoid. Further, the second flap 15 is an isosceles triangle having a base angle of 45 ° with the upper edge 12a of the end face panel 12 as the base, or an isosceles triangle having the upper edge 12a of the end face panel 12 as the lower base and having a bottom angle of 45 on the lower base side. It is an isosceles trapezoid of °. In this way, the cushioning sheet 10 has the shape of the first flap 14 and the second flap 15 as an isosceles triangle or an isosceles trapezoid, and the protrusion length L1 of the first flap 14 and the protrusion of the second flap 15. It is provided so as to be equal to the length L2.

The cushioning sheet 10 includes a side panel 11, an end surface panel 12, a first flap 14, and a second flap 15. That is, the cushioning sheet 10 does not include members other than the side panel 11, the end surface panel 12, the first flap 14, and the second flap 15. With such a configuration, the cushioning sheet 10 can appropriately protect the contents and easily and surely reduce the used area of the base paper.

The cushioning sheet 10 can be formed by punching out one base paper. Examples of the base paper include paper sheets such as corrugated cardboard and cardboard, and corrugated cardboard is preferable. Examples of the corrugated cardboard sheet include a single-sided corrugated cardboard sheet in which a corrugated cardboard core is bonded to one liner, a double-sided corrugated cardboard sheet in which a liner is further bonded to the top of the single-sided corrugated cardboard sheet, and one side of the double-sided corrugated cardboard sheet. Examples thereof include a double-sided corrugated cardboard sheet in which the top of a single-sided corrugated cardboard is bonded, and a double-sided corrugated cardboard sheet in which the top of a single-sided corrugated cardboard is further bonded to one side of the double-sided corrugated cardboard. Among these, a double-sided corrugated cardboard sheet (double flute) having excellent durability and cushioning against the contents is preferable. Further, the ridgeline direction of the core of the corrugated cardboard sheet can be parallel to the vertical direction from the viewpoint of easily increasing the strength in the vertical direction.

Hereinafter, the buffer sheet 10 will be described in detail.

(Side panel)
The side panel 11 is arranged on the bottom wall 130 along the inner surface of the side wall 110 of the box body 100. The side panel 11 is arranged at a distance from the upper edge of the side wall 110 of the box body 100. The upper limit of the vertical length L3 of the side panel 11 is not particularly limited, but can be, for example, 0.7 times the vertical length of the side wall 110, even if it is 0.6 times. good. On the other hand, the lower limit of the vertical length L3 of the side panel 11 is not particularly limited, but can be, for example, 0.2 times the vertical length of the side wall 110, which is 0.4 times. You may.

The left-right length L4 of the side panel 11 is substantially equal to the left-right length of the side wall 110. With this configuration, the side panel 11 is arranged over both ends of the inner surface of the side wall 110 in the left-right direction.

The side panel 11 has a shape in which the lower edge of a rectangular panel having a vertical length L3 and a horizontal length L4 is partially cut out. More specifically, the lower edge of the side panel 11 is provided with a first recess 11b having the same shape as the first flap 14.

(End face panel)
The end face panel 12 is arranged on the bottom wall 130 along the inner surface of the end wall 120 of the box body 100. The vertical length L5 of the end face panel 12 is equal to the vertical length L3 of the side panel 11. The cushioning sheet 10 has an upper edge 11a of the side panel 11 and an upper edge 12a of the end panel 12 so that the vertical length L5 of the end face panel 12 is equal to the vertical length L3 of the side panel 11. The heights are configured to be equal.

The left-right length L6 of the end face panel 12 is substantially equal to the left-right length of the end wall 120. With this configuration, the end face panel 12 is arranged over both ends of the inner surface of the end wall 120 in the left-right direction. Normally, in the box body 100, the left-right length of the end wall 120 is equal to or less than the left-right length of the side wall 110. Therefore, in the cushioning sheet 10, the left-right length L6 of the end face panel 12 is equal to or less than the left-right length L4 of the side panel 11.

The end face panel 12 has a shape in which the lower edge of a rectangular panel having a vertical length L5 and a horizontal length L6 is partially cut out. More specifically, the lower edge of the end face panel 12 is provided with a second recess 12b having the same shape as the second flap 15.

As described above, the cushioning sheet 10 is provided with a first recess 11b having the same shape as the first flap 14 on the lower edge of the side panel 11, and the second flap 15 is provided on the lower edge of the end face panel 12. By providing the second recess 12b having the same shape as the above, when a plurality of cushioning sheet 10s are formed by punching out from one base paper, as shown in FIG. 3, for one cushioning body. Since the first flap 14 and the second flap 15 of the other cushioning sheet 10-2 can be formed in the first recess 11b and the second recess 12b of the sheet 10-1, the area used for the base paper can be made smaller and saved. It is easy to promote resource recovery.

(1st flap)
The first flap 14 extends from the entire portion of the upper edge 11a of the side panel 11. That is, the width of the base end edge of the first flap 14 is equal to the length of the upper edge 11a of the side panel 11.

In FIG. 1, the first flap 14 is an isosceles trapezoid. More specifically, the first flap 14 is an isosceles trapezoid having a bottom angle of 45 ° on the lower base side and a height (protruding length) equal to that of the second flap 15.

(2nd flap)
The second flap 15 extends from the entire portion of the upper edge 12a of the end face panel 12. That is, the width of the base end edge of the second flap 15 is equal to the length of the upper edge 12a of the end face panel 12.

The second flap 15 is an isosceles triangle. More specifically, the second flap 15 is an isosceles triangle with a base angle of 45 °.

The cushioning sheet 10 has the first flap 14 and the first flap 14 as shown in FIG. 4 because the second flap 15 is the above-mentioned isosceles triangle and the first flap 14 is the above-mentioned isosceles trapezoid. The two flaps 15 are arranged so as to cover an area of 1/2 of the bottom wall 130 in a plan view. As a result, by arranging the two buffers 20 in the box body 100, the entire upper part of the bottom wall 130 can be covered by the first flap 14 and the second flap 15 of the pair of buffers 20. Thereby, the contents can be more appropriately protected in the box body 100.

<Sheet set for shock absorber>
As described above, the shock absorber 20 formed by assembling the shock absorber sheet 10 can appropriately protect the contents by arranging two of the shock absorbers 20 together in the box body 100. A cushioning sheet set including the pair of cushioning sheets 10 is one aspect of the present invention. As shown in FIG. 3, the cushioning sheet set is arranged in the first recess 11b and the second recess 12b of the cushioning sheet 10-1 and the other cushioning sheet 10-2. The first flap 14 and the second flap 15 of the above can be arranged. Since the cushioning sheet set includes the cushioning sheet 10, it is possible to appropriately protect the contents while reducing the used area of the base paper.

<Advantage>
The cushioning sheet 10 is usually used as a set of two. More specifically, the two shock absorbers 20 formed by assembling the shock absorber sheet 10 are such that the first flap 14 and the second flap 15 are parallel to the bottom wall 130 of the box body 100, respectively, and their tip edges thereof. Is used by arranging the box body 100 so as to project toward the center of the box body 100 in a plan view. In the cushioning sheet 10, since the first flap 14 and the second flap 15 are isosceles triangles or isosceles trapezoids having a base angle of 45 °, the first flap 14 and the second flap 15 are the box body 100. When arranged in parallel with the bottom wall 130, a gap is unlikely to occur between the side edges of the first flap 14 and the second flap 15. Therefore, the cushioning sheet 10 can appropriately protect the contents in the box body 100 by accommodating the contents in the box body 100 from the upper side of the first flap 14 and the second flap 15. can. Since the first flap 14 directly extends from the upper edge 11a of the side panel 11 and the second flap 15 directly extends from the upper edge 12a of the end face panel 12, the cushioning sheet 10 is made of a base paper. It is easy to reduce the used area.

[Second Embodiment]
<Cushioning sheet>
The cushioning sheet 40 of FIG. 5 is used in place of the cushioning sheet 10 of FIG. The cushioning sheet 40 is arranged in a box having a square tubular portion having a pair of facing side walls and a pair of facing end walls, and a bottom wall having a bottom wall that closes the lower opening of the square tubular portion. Support the contents. The cushioning sheet 40 has an upper edge 41a parallel to the bottom wall, has a side panel 41 arranged along the inner surface of the side wall, and has an upper edge 42a parallel to the bottom wall, and has a side surface. It extends from the end face panel 42, which is connected to the side edge of the panel 41 via an easy-to-bend line 43 and is arranged along the inner surface of the end wall, and the upper edge 41a of the side panel 41, and is bent in parallel with the bottom wall. The first flap 44 is provided, and the second flap 45 extending from the upper edge 42a of the end face panel 42 and being bent in parallel with the bottom wall is provided. The protrusion lengths of the first flap 44 and the second flap 45 are equal. The first flap 44 is an isosceles trapezoid with the upper edge 41a of the side panel 41 as the lower base and a bottom angle of 45 ° on the lower base side. The second flap 45 is an isosceles trapezoid with an upper edge 42a of the end face panel 42 as a lower base and a bottom angle of 45 ° on the lower base side.

<Advantage>
The cushioning sheet 40 has an isosceles trapezoidal shape in both the first flap 44 and the second flap 45, so that the area used for the base paper can be made smaller. Further, according to this configuration, when a pair of shock absorbers formed by assembling the shock absorber sheet 40 are arranged inside the box, between the tip edges of the first flap 44 and between the tip edges of the second flap 45. A rectangular gap is formed as a whole. As a result, the contents can be easily stored in the box.

[Other embodiments]
The above embodiment does not limit the configuration of the present invention. Therefore, the above-described embodiments can be omitted, replaced or added with components of each of the above-described embodiments based on the description of the present specification and common general technical knowledge, and all of them are construed to belong to the scope of the present invention. Should be.

In the cushioning material sheet, both the first flap and the second flap can be made into an isosceles triangle. For example, when the lateral lengths of the side wall and the end wall of the box are the same (when the lateral lengths of the side panel and the end face panel are the same), the first flap and the second flap are both isosceles triangles. This allows the first and second flaps to cover half the area of the bottom wall of the box.

The lower edge of the side panel may not be provided with a first recess having the same shape as the first flap. Further, the lower edge of the end face panel may not be provided with a second recess having the same shape as the second flap. The cushioning sheet does not have an annular frame as found in conventional shock absorbers. Therefore, a shock absorber conventionally composed of one sheet can be assembled from two cushioning sheet. As a result, even when the first recess is not provided on the lower edge of the side panel and the second recess is not provided on the lower edge of the end face panel, it is easy to adjust the arrangement of the cushioning sheet on the base paper. Therefore, it is easy to promote resource saving.

As described above, the cushioning sheet according to one aspect of the present invention can appropriately protect the contents while reducing the area used for the base paper, and is therefore suitable as a cushioning material to be placed inside the box. Can be used.

10, 10-1, 10-2, 40 Cushioning sheet 11, 41 Side panel 11a, 41a Upper edge 11b First recess 12, 42 End face panel 12a, 42a Upper edge 12b Second recess 13, 43 Easy-to-bend line 14 , 44 1st flap 15, 45 2nd flap 20 Buffer 100 Box body 110 Side wall 120 End wall 130 Bottom wall L1 Protruding length of 1st flap L2 Protruding length of 2nd flap L3 Vertical length of side panel L4 Left-right length of side panel L5 Vertical length of end face panel L6 Left-right length of end face panel

Claims (5)

A cushioning body arranged in a box having a square cylindrical portion having a pair of facing side walls and a pair of facing end walls and a bottom wall for closing the lower opening of the square tubular portion, and supporting the contents. A cushioning sheet that can be assembled
A side panel having an upper edge parallel to the bottom wall and arranged along the inner surface of the side wall,
An end face panel that has an upper edge parallel to the bottom wall, is connected to the side edge of the side panel via an easy bend line, and is arranged along the inner surface of the end wall.
A first flap that extends from the upper edge of the side panel and is bent parallel to the bottom wall.
It has a second flap that extends from the upper edge of the end panel and bends parallel to the bottom wall.
The protrusion lengths of the first flap and the second flap are equal,
The first flap is an isosceles triangle with a base angle of 45 ° with the upper edge of the side panel as the base, or an isosceles trapezoid with the upper edge of the side panel as the lower base and a base angle of 45 ° on the lower base side. It is trapezoidal
The second flap is an isosceles triangle with a base angle of 45 ° with the upper edge of the end face panel as the base, or an isosceles trapezoid with the upper edge of the end face panel as the lower base and a base angle of 45 ° on the lower base side. A trapezoidal cushioning sheet. The first flap is an isosceles trapezoid,
The second flap is the isosceles triangle,
The cushioning sheet according to claim 1, wherein the first flap and the second flap are arranged so as to cover an area of 1/2 of the bottom wall in a plan view. A first recess having the same shape as the first flap is provided on the lower edge of the side panel.
The cushioning sheet according to claim 1 or 2, wherein a second recess having the same shape as the second flap is provided on the lower edge of the end face panel. The cushioning sheet according to claim 1, claim 2 or claim 3, which comprises the side panel, the end face panel, the first flap, and the second flap. A cushioning sheet set comprising the pair of cushioning sheets according to claim 4.

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