JP3223063U - Cushion sheet - Google Patents

Abstract

A cushioning sheet capable of easily and safely arranging a plurality of articles in a box in a multistage manner. A shock-absorbing sheet 1 according to the present invention is a shock-absorbing sheet comprising a single corrugated cardboard sheet, which is disposed in a box and can divide the inner space of the box in multiple stages, and has a front edge 2a facing each other. 5a and rear edges 2b and 5b, and a pair of left and right side edges 2c and 5c facing each other, and a substantially rectangular partition plate 2 arranged parallel to the bottom surface of the box, and the partition plate A first leg plate 3 extending from a pair of side edges and bent downward, a connection plate 4 extending from the rear edge of the intermediate partition plate and bent upward, and an edge on the front end side in the extending direction of the connection plate The top plate 5 that is substantially the same type as the intermediate partition plate that is folded back in parallel with the intermediate partition plate, and the second leg plate 6 that extends from the edge of the top plate in the extending direction and is bent downward. The length of the second leg plate in the extending direction is the first leg plate and the connection Extension equal to the total length in the direction of. [Selection] Figure 1

Description

  The present invention relates to a buffer sheet.

  Boxes assembled from cardboard sheets or the like are widely used for storing and transporting articles. In this box, a relatively short article may be stored in two or more layers. When a plurality of articles are stacked and accommodated in two or more stages, a cushioning sheet may be arranged between the articles arranged in each stage.

  As this cushioning sheet, for example, a flat protective material made of a corrugated cardboard sheet is used (see JP-A-2006-88612).

Japanese Patent Laid-Open No. 2006-88612

  On the other hand, some articles contained in the box are weak in resistance to pressing, such as being unable to maintain a desired shape when pressed from above. If such an article is arranged in multiple stages with a flat protective material interposed, the article placed below may endure a load from above, and may be deformed or damaged.

  The present invention has been made in view of such inconveniences, and an object of the present invention is to provide a cushioning sheet that allows a plurality of articles to be easily and safely arranged in multiple stages in a box.

  A buffer sheet according to the present invention made to solve the above-mentioned problems is a buffer sheet which is composed of a single cardboard sheet and is arranged in a box, and can divide the internal space of the box into multiple stages, which are opposed to each other. A substantially rectangular middle partition plate disposed in parallel with the bottom surface of the box, and extending from the pair of side edges of the middle partition plate. A first leg plate extending downward and extending from a rear edge of the intermediate partition plate; a connection plate extending upward; and extending from an end edge of the connection plate in the extending direction; and the intermediate partition plate And a second leg plate that extends from the edge of the top end of the top plate in the extending direction and is bent downward, and extends the second leg plate. The length in the extending direction is the total length in the extending direction of the first leg plate and the connecting plate. Equal.

  The buffer sheet according to the present invention can easily and safely arrange a plurality of articles in a box in multiple stages.

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 an assembled state of the cushion sheet of FIG. 1 in the box. FIG. 3 is a schematic side view showing a state in the middle of disposing the buffer sheet of FIG. 1 in the box. FIG. 4 is a schematic side view showing the next state of FIG. 3 in which the cushioning sheet of FIG. 1 is arranged in the box. FIG. 5 is a schematic side view showing a state in which the buffer sheet of FIG. 1 is arranged in the box. FIG. 6 is a schematic plan view showing a buffer sheet according to an embodiment different from the buffer sheet of FIG. 1. FIG. 7 is a schematic perspective view showing an assembled state of the cushion sheet of FIG. 6 in the box. FIG. 8 is a schematic rear view of the buffer sheet of FIG.

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

  The shock-absorbing sheet according to the present invention is a shock-absorbing sheet composed of a single corrugated cardboard sheet and arranged in a box, and can divide the internal space of the box into multi-stages. A substantially rectangular middle partition plate disposed in parallel with the bottom surface of the box, and a first leg plate extending from the pair of side edges of the middle partition plate and bent downward And a connection plate extending from the rear edge of the intermediate partition plate and bent upward, and the intermediate partition plate extending from the end edge of the connection plate in the extending direction and folded back in parallel with the intermediate partition plate And a second leg plate that extends from the end edge of the top plate in the extending direction and is bent downward, and the length of the second leg plate extends in the first direction. It is equal to the total length of the leg plate and the connecting plate in the extending direction.

  The buffer sheet holds the intermediate partition plate in parallel with the bottom surface of the box by first leg plates extending from the pair of side edges of the intermediate partition plate, and the top plate extending from the connection plate is the second leg plate. Can be held in parallel with the intermediate partition plate. Therefore, the buffer sheet is a safe and multi-stage arrangement of a plurality of articles using the space between the middle partition plate and the bottom surface of the box and the space between the middle partition plate and the top plate. Can do. Since the buffer sheet is composed of one cardboard sheet, it is not necessary to combine a plurality of sheet materials when accommodating a plurality of articles in the box. Therefore, the buffer sheet can easily arrange a plurality of articles in the box.

  The buffer sheet may further include a third leg plate extending from an end edge of the connection plate on the base end side in the extending direction. As described above, by further including the third leg plate extending from the end edge on the base end side in the extending direction of the connection plate, the intermediate partition plate can be stably held in parallel with the bottom surface of the box. it can. Moreover, according to this structure, it is easy to make the said connection board follow the side surface of the said box, and it is easy to arrange | position the said top plate in parallel with the said partition plate.

  It is preferable that the third leg plate has a concave portion extending from the end edge on the distal end side in the extending direction to the base end edge, and the middle partition plate has a convex portion complementary to the concave portion. The said buffer sheet can form the said recessed part and a convex part simultaneously by forming the notch corresponding to the said 3rd leg plate in the said partition plate. According to this configuration, since the convex portion functions as a mounting surface for the article while stably holding the middle partition plate and the top plate in parallel with the bottom surface of the box by the third leg plate, Articles can be stably placed on the partition plate.

  The side edge on the rear edge side of the middle partition plate of the first leg plate may be arcuate. Thus, when the side edge on the rear edge side of the middle partition plate of the first leg plate is arcuate, the buffer sheet can be easily installed in the box.

  The buffer sheet may further include a fourth leg plate that extends from the front edge of the middle partition plate, is bent downward, and overlaps the second leg plate. Thus, by further including a fourth leg plate extending from the front edge of the middle partition plate and bent downward and overlapping the second leg plate, the middle partition plate and the top plate are connected to the bottom surface of the box. It can be stably held by parallelism.

  In the present invention, “front”, “rear”, “left”, “right”, “upper”, and “lower” refer to the relative positional relationship in the state in which the buffer sheet is arranged in the box. I mean. The “arc shape” is not limited to a complete arc shape, and includes, for example, a shape approximated to an arc shape by a plurality of straight lines.

[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]
<Buffer sheet>
The buffer sheet 1 in FIG. 1 is composed of one cardboard sheet. The buffer sheet 1 is arranged in the box in the assembled state shown in FIG. The buffer sheet 1 is arranged in a box and is configured so that the internal space of the box can be divided into multiple stages. The box body in which the buffer sheet 1 is disposed is not particularly limited, and examples thereof include a packaging box assembled from cardboard sheets.

  The buffer sheet 1 has a front edge 2a and a rear edge 2b facing each other, and a pair of left and right side edges 2c facing each other, and a substantially rectangular partition plate 2 arranged in parallel with the bottom surface of the box, A first leg plate 3 extending from the pair of side edges 2c of the middle partition plate 2 and bent downward, a connection plate 4 extending from the rear edge 2b of the middle partition plate 2 and bent upward, and an extension of the connection plate 4 Extending from the edge on the leading end side in the extending direction, and extending from the edge on the leading end side in the extending direction of the top plate 5, extending from the end plate in the extending direction of the top plate 5. And a second leg plate 6 that can be bent. Further, the buffer sheet 1 includes a fourth leg plate 7 that extends from the front edge 2 a of the middle partition plate 2, is bent downward, and overlaps the second leg plate 6. In FIG. 1, a thick solid line indicates a cutting line formed by cutting a cardboard sheet, and a thin solid line indicates a ruled line formed by pushing one side of the cardboard sheet. In FIG. 1, a thin two-dot chain line indicates a half-cut line obtained by cutting only one side of the cardboard sheet.

  As the corrugated cardboard sheet used for the buffer sheet 1, a core formed of a base paper in a wave shape is bonded to a liner, and for example, the core formed in a wave shape is bonded to a single liner. Single-sided corrugated sheet, double-sided corrugated sheet with a liner attached to the top of a single-sided corrugated sheet, double-sided corrugated sheet with a single-sided corrugated sheet sheet laminated on one side of a double-sided corrugated sheet, single-sided on one side of a double-sided cardboard sheet A double-sided corrugated cardboard sheet in which the tops of corrugated cardboard sheets are further bonded together can be used. Among these, double-sided cardboard sheets are preferable from the viewpoint of processability, economy, durability, and the like.

  The lower limit of the thickness of the cardboard sheet is preferably 1.5 mm and more preferably 3 mm. On the other hand, the upper limit of the thickness of the corrugated cardboard sheet is preferably 8 mm, and more preferably 5 mm. If the thickness is less than the lower limit, the buffer sheet 1 has insufficient strength, and it may be difficult to maintain a desired shape in the box. On the contrary, if the thickness exceeds the upper limit, it may be difficult to assemble into a shape arranged in the box, or the space for accommodating articles in the box may be reduced due to the buffer sheet 1. is there.

  The ridgeline of the core of the corrugated cardboard sheet is preferably parallel to the front-rear direction of the middle partition plate 2 (direction perpendicular to the front edge 2a and the rear edge 2b, the X direction in FIG. 2). According to this structure, the buffer sheet 1 has the middle partition plate 2 and the top plate 5 that are difficult to bend in the front-rear direction. Therefore, the second partition plate 6 and the fourth leg plate 7 are used as the support columns, and the middle partition plate 2 and the top plate 5 are Easy to hold parallel to the bottom of the box.

(Partition plate)
The middle partition plate 2 divides the accommodation space of the article into two upper and lower stages within the box. That is, in the state of FIG. 2 in which the buffer sheet 1 is arranged in the box, the first accommodation space S1 is provided between the bottom surface of the box and the middle partition plate 2, and the middle partition plate 2 and the top plate 5 are provided. The second accommodation space S2 is provided between the two. The middle partition plate 2 has a substantially rectangular shape having four sides of a front edge 2a, a rear edge 2b, and a pair of side edges 2c. The front edge 2a, the rear edge 2b, and the pair of side edges 2c are respectively opposed to the inner surface of the side wall of the box within the box. Note that the “substantially rectangular shape” is not limited to a complete rectangle, and includes a shape in which corners of the rectangle are chamfered and a shape in which notches are provided on each side.

(First leg plate)
The first leg plate 3 extends from the pair of side edges 2 c of the middle partition plate 2. That is, the buffer sheet 1 has a pair of first leg plates 3 extending from the opposite side edges 2 c of the intermediate partition plate 2. The width of the first leg plate 3 (the length in the direction parallel to the side edge 2c) is preferably equal to or less than the length of the side edge 2c. The length of the first leg plate 3 in the extending direction can be set based on the size of the article accommodated in the first accommodation space S1, and can be set to 3 cm or more and 10 cm or less, for example.

  The side edge 3a on the rear edge 2b side of the middle partition plate 2 of the first leg plate 3 is preferably arcuate. According to this configuration, as will be described later, it is easy to install the buffer sheet 1 in the box while accommodating a plurality of articles in the first accommodation space S1.

  The front-rear direction position (the X-direction position in FIG. 2) of the side edge 3a on the side edge 3b on the rear edge 2b side of the first leg plate 3 is the rear edge 2b. It is preferable that they are substantially the same. According to this structure, it is easy to install the buffer sheet 1 in the box while the side edge on the rear edge 2b side of the middle partition plate 2 of the first leg plate 3 is in contact with the bottom surface of the box.

  An easy folding line is provided at the boundary line between the first leg plate 3 and the middle partition plate 2. The easy folding line is preferably a lead ruled line in which a plurality of cutting lines and a plurality of ruled lines formed by pushing the one side of the corrugated cardboard sheet (the side on which the first leg plate 3 is bent) are alternately continuous.

(Connection plate)
The connection plate 4 has a substantially rectangular shape. The connection plate 4 is bent upward with respect to the middle partition plate 2, thereby functioning as a spacer that keeps the distance between the middle partition plate 2 and the top plate 5. The extension direction length of the connection plate 4 can be set based on the size of the article accommodated in the second accommodation space S2, but may be the same as the extension direction length of the first leg plate 3, for example. it can. The “length in the extending direction of the connecting plate” means the distance between the boundary line between the connecting plate and the partition plate in the extending direction of the connecting plate and the boundary line between the connecting plate and the top plate.

  An easy folding line is provided on the boundary line between the connection plate 4 and the middle partition plate 2 and the boundary line between the connection plate 4 and the top plate 5. Examples of these easy folding lines include a half-cut line obtained by cutting only one side of the corrugated cardboard sheet (the side opposite to the side on which the connection plate 4 and the top plate 5 are bent), and a plurality of cutting lines and one side of the corrugated cardboard sheet. Examples include lead ruled lines in which a plurality of ruled lines formed by pushing the connecting plate 4 and the top plate 5 are bent continuously. Among them, the easy folding line formed at the boundary line between the connection plate 4 and the top plate 5 is preferably a combination of the lead ruled line and the half cut line, and a pair of half cut lines on both sides of the lead ruled line. A shape provided with is particularly preferred. According to this configuration, it is possible to easily and reliably bend the easy-to-bend line when installed on the box while suppressing unintended folding of the easy-to-bend line by the lead ruled line.

(Top board)
The top plate 5 is held in the box in parallel with the middle partition plate 2, and forms a second accommodation space S <b> 2 with the middle partition plate 2. Moreover, the top plate 5 is arrange | positioned under the cover part of a box, and protects the articles | goods accommodated in 2nd accommodation space S2 from the impact from the cover part side.

  The top plate 5 is substantially the same type as the middle partition plate 2. Specifically, the top plate 5 has a substantially rectangular shape having a front edge 5a, a rear edge 5b, and a pair of side edges 5c facing the inner surface of the side wall of the box in the box.

(Second leg plate)
The second leg plate 6 is arranged in the vertical direction in front of the front edge 2 a of the middle partition plate 2 by being bent downward from the top plate 5. The minimum width of the second leg plate 6 (minimum length in the direction parallel to the front edge 5a of the top plate 5) is, for example, ½ or more of the length of the front edge 5a of the top plate 5.

  The length of the second leg plate 6 in the extending direction is equal to the total length of the first leg plate 3 and the connecting plate 4 in the extending direction. That is, in the buffer sheet 1, the first leg plate 3 and the second leg plate 6 abut on the bottom surface of the box body in a state where the partition plate 2 and the top plate 5 are held in parallel. Therefore, the second leg plate 6 functions as a spacer that holds the top plate 5 in parallel with the middle partition plate 2.

  An easy folding line is provided at the boundary line between the second leg plate 6 and the top plate 5. The easy folding line is preferably a half-cut line obtained by cutting only one side of the corrugated cardboard sheet (the side opposite to the side where the second leg plate 6 is bent).

(4th leg plate)
The fourth leg plate 7 supports the intermediate partition plate 2 together with the first leg plate 3. Therefore, the length of the fourth leg plate 7 in the extending direction is equal to the length of the first leg plate 3 in the extending direction. The fourth leg plate 7 extends from the front edge 2 a of the middle partition plate 2. More specifically, the front edge 2a of the middle partition plate 2 is formed with a recess 2d that is recessed by about one sheet, and the fourth leg plate 7 extends from the recess 2d. Thereby, when the 2nd leg board 6 is piled up on the outer surface of the 4th leg board 7, it is suppressed that the 2nd leg board 6 protrudes ahead with respect to the partition plate 2, and the said buffer sheet 1 is put in a box. It can be arranged stably.

  A boundary line between the fourth leg plate 7 and the middle partition plate 2 is provided with an easy folding line. The easy folding line is preferably a lead ruled line in which a plurality of cutting lines and a plurality of ruled lines formed by pushing the one side of the corrugated cardboard sheet (the side on which the fourth leg plate 7 is bent) are alternately continued.

<Installation procedure>
Next, with reference to FIGS. 3-5, the installation procedure in the box 21 of the said buffer sheet 1 is demonstrated. First, as shown in FIG. 3, a plurality of articles X <b> 1 are aligned on the bottom surface 21 a of the box body 21. Further, the buffer sheet 1 is folded in two at the boundary line between the middle partition plate 2 and the connection plate 4 after the first leg plate 3 is folded downward. And the said buffer sheet 1 is inserted in the box 21 so that the connection board 4 and the top plate 5 may be along the inner surface of the rear wall 21b of the box 21. FIG.

  Next, with the arc-shaped side edge 3 a of the first leg plate 3 as a fulcrum, the middle partition plate 2 is tilted toward the bottom surface 21 a side of the box body 21. At this time, the fourth leg plate 7 is bent downward and brought into contact with the bottom surface 21 a of the box body 21. As a result, as shown in FIG. 4, the intermediate partition plate 2 is kept parallel to the bottom surface 21a of the box body 21, and a plurality of articles X1 are stored in the first storage space S1 between the intermediate partition plate 2 and the bottom surface 21a. Is done.

  Subsequently, as shown in FIG. 4, the plurality of articles X <b> 2 are aligned on the upper surface of the middle partition plate 2. Then, the top plate 5 is bent at the boundary line with the connection plate 4, and the top plate 5 is tilted toward the bottom surface 21 a side of the box body 21. At this time, the second leg plate 6 is bent downward, inserted between the fourth leg plate 7 and the front wall 21 c of the box body 21, and brought into contact with the bottom surface 21 a of the box body 21. Thereby, as shown in FIG. 5, the top plate 5 is kept parallel to the middle partition plate 2, and the buffer sheet 1 is installed in the box body 21, and between the middle partition plate 2 and the top plate 5. A plurality of articles X2 are stored in the second storage space S2. Furthermore, as shown in FIG. 5, the lid 21d of the box 21 is assembled. In addition, regarding the installation of the buffer sheet 1, it is not always necessary to assemble the lid portion 21 d of the box body 21. The buffer sheet 1 can be installed in, for example, a tray-like container that does not have a lid.

<Advantages>
The buffer sheet 1 holds the intermediate partition plate 2 in parallel with the bottom surface 21a of the box body 21 by the first leg plates 3 extending from the pair of side edges 2c of the intermediate partition plate 2, and extends from the connection plate 4. The top plate 5 can be held in parallel with the middle partition plate 2 by the second leg plate 6. Therefore, the buffer sheet 1 uses the first accommodation space S <b> 1 between the middle partition plate 2 and the bottom surface 21 a of the box body 21 and the second accommodation space S <b> 2 between the middle partition plate 2 and the top plate 5. A plurality of articles X1 and X2 can be arranged safely and in multiple stages. Since the buffer sheet 1 is composed of one cardboard sheet, it is not necessary to combine a plurality of sheet materials when the plurality of articles X1 and X2 are accommodated in the box body 21. Therefore, the buffer sheet 1 can easily arrange a plurality of articles X1 and X2 in the box body 21.

  Since the buffer sheet 1 includes the fourth leg plate 7 that extends from the front edge 2a of the middle partition plate 2 and is bent downward and overlaps the second leg plate 6, the middle partition plate 2 and the top plate 5 are attached to the box body 21. It can be stably held by being parallel to the bottom surface 21a.

[Second Embodiment]
<Buffer sheet>
The buffer sheet 11 shown in FIG. 6 is composed of one cardboard sheet. The buffer sheet 11 is arranged in the box in the assembled state shown in FIG. The buffer sheet 11 is configured such that the internal space of the box can be divided into multiple stages. The buffer sheet 11 has a front edge 12a and a rear edge 12b facing each other and a pair of left and right side edges 12c facing each other, and a substantially rectangular partition plate 12 arranged in parallel to the bottom surface of the box, A first leg plate 13 extending from the pair of side edges 12c of the middle partition plate 12 and bent downward, a connection plate 14 extending from the rear edge 12b of the middle partition plate 12 and bent upward, and an extension of the connection plate 14 Extending from the edge on the leading end side in the extending direction and extending from the edge on the leading end side in the extending direction of the top plate 15 and the top plate 15 substantially the same type as the middle partition plate 12 folded back in parallel with the middle partition plate 12 And a second leg plate 16 that can be bent. The buffer sheet 11 includes a fourth leg plate 17 that extends from the front edge 12 a of the middle partition plate 12, is bent downward, and overlaps the second leg plate 16. Further, the buffer sheet 11 includes a third leg plate 18 that extends from the end edge of the connection plate 14 on the proximal side in the extending direction. In FIG. 6, a thick solid line indicates a cutting line formed by cutting a cardboard sheet, and a thin solid line indicates a ruled line formed by pushing one side of the cardboard sheet. In FIG. 6, a thin two-dot chain line indicates a half-cut line obtained by cutting only one side of the corrugated cardboard sheet.

  As shown in FIG. 6, the third leg plate 18 is formed by cutting out the rear edge 12 b of the middle partition plate 12. The shock-absorbing sheet 11 includes a third leg plate 18 that extends from the end edge of the connection plate 14 in the extending direction, and the intermediate partition plate 12 has a notch 12e that defines the third leg plate 18. The shape of the buffer sheet 1 in FIG. Therefore, only the third leg plate 18 and the notch 12e will be described below.

(3rd leg plate)
The third leg plate 18 extends from the central portion of the connection plate 14 in the width direction. As shown in FIG. 8, the third leg plate 18 protrudes downward from the lower edge of the connection plate 14 in a state where the buffer sheet 11 is disposed in the box body, and is a partition plate together with the first leg plate 13 and the fourth leg plate 17. 12 is supported in parallel with the bottom surface of the box. Further, the third leg plate 18 supports the connection plate 14 from below in a state in which an end edge on the front end side in the extending direction (hereinafter also referred to as “front end edge 18a”) is in contact with the bottom surface of the box. The top plate 15 is supported in parallel with the middle partition plate 12 together with the bipod plate 16. The length of the third leg plate 18 in the extending direction can be the same as the length of the first leg plate 13 and the fourth leg plate 17 in the extending direction.

  The 3rd leg board 18 has the recessed part 18b from the front-end edge 18a to a base end edge. The recess 18b has a widened portion whose width gradually increases from the base end edge of the third leg plate 18 toward the distal end edge 18a and a reduced width portion whose width gradually decreases in this order. The recessed portion 18b has a reduced width portion on the tip edge 18a side, so that the opening width formed on the tip edge 18a side can be reduced. Accordingly, the cushioning sheet 11 can easily arrange a plurality of articles so as to abut on the inner surface of the third leg plate 18 in the arrangement state of FIG. 7, and eventually supports the third leg plate 18 from the inner surface side by the plurality of articles. Thus, it is easy to stably hold the middle partition plate 12 and the top plate 15 parallel to the bottom surface of the box.

  It is preferable that an easy folding line is not formed at the boundary line between the third leg plate 18 and the connection plate 14. As described above, the easy folding line is not formed at the boundary line between the third leg plate 18 and the connection plate 14, so that the third leg plate 18 can be easily erected, and the partition plate 12 and the top plate 15 can be attached to the box. It is easy to hold stably in parallel with the bottom of the plate.

(Notch)
The notch 12 e defines the third leg plate 18 and defines the outer edge of the middle partition plate 12. Therefore, the third leg plate 18 has the above-described concave portion 18b, so that a convex portion 12f complementary to the concave portion 18b is formed in the intermediate partition plate 12. The convex portion 12f includes a widened portion whose width gradually increases from the base edge toward the distal end side and a reduced width portion whose width gradually decreases in this order. The buffer sheet 11 has a plurality of articles stably disposed on the partition plate 12 because the partition plate 12 has the projections 12f and the projections 12f function as a placement surface for the articles. Can do.

<Advantages>
The buffer sheet 11 includes the third leg plate 18 extending from the end edge of the connection plate 14 in the extending direction base end side, thereby stably holding the intermediate partition plate 12 in parallel with the bottom surface of the box. Can do. Moreover, according to this structure, it is easy to make the connection board 14 follow the side surface of a box, and it is easy to arrange | position the top plate 15 and the partition plate 12 in parallel.

[Other Embodiments]
The said embodiment does not limit the structure of this invention. Therefore, in the above-described embodiment, components of each part of the above-described embodiment can be omitted, replaced, or added based on the description and common general knowledge of the present specification, and they are all interpreted as belonging to the scope of the present invention. Should.

  For example, the buffer sheet may not include the fourth leg plate extending from the front edge of the middle partition plate. Even if the buffer sheet is not provided with the fourth leg plate, it is possible to hold the middle partition plate in parallel with the bottom surface of the box by the first leg plate extending from the pair of left and right side edges of the middle partition plate. .

  The specific shape of each plate in the buffer sheet is not limited to the shape described in the above embodiment. For example, in the buffer sheet, the side edge on the rear edge side of the middle partition plate of the first leg plate may not be arcuate in the first embodiment. Moreover, even when the buffer sheet includes the third leg plate, the third leg plate does not necessarily have to have a recess extending from the end edge on the distal end side in the extending direction to the base end edge.

  The buffer sheet need not necessarily be divided into two stages in the internal space of the box, and may be configured to be divided into three or more stages.

  As described above, the cushioning sheet according to the present invention is suitable for storing a plurality of articles in the box because a plurality of articles can be easily and safely arranged in multiple stages in the box.

1,11 Buffer sheet 2,12 Middle partition plate 2a, 12a Front edge 2b, 12b Rear edge 2c, 12c Side edge 2d Recessed portion 12e Notch 12f Protruding portion 3, 13 First leg plate 3a Side edge 4, 14 Connection plate 5 , 15 Top plate 5a Front edge 5b Rear edge 5c Side edge 6, 16 Second leg plate 7, 17 Fourth leg plate 18 Third leg plate 18a Tip edge 18b Recess 21 Box 21a Bottom surface 21b Rear wall 21c Front wall 21d Lid S1 1 accommodation space S2 2nd accommodation space X1, X2

Claims (5)

A shock-absorbing sheet consisting of a single cardboard sheet, arranged in a box, and capable of dividing the inner space of the box into multiple stages,
A substantially rectangular partition plate that has a front edge and a rear edge facing each other, and a pair of left and right side edges facing each other, and is arranged in parallel with the bottom surface of the box;
A first leg plate extending from a pair of side edges of the intermediate partition plate and bent downward;
A connecting plate extending from the rear edge of the intermediate partition plate and bent upward;
A top plate that extends from the edge of the connecting plate in the extending direction on the front end side and is folded back in parallel with the intermediate partition plate, and substantially the same type as the intermediate partition plate,
A second leg plate extending from the end edge of the top plate in the extending direction and bent downward;
A buffer sheet in which the length of the second leg plate in the extending direction is equal to the total length of the first leg plate and the connecting plate in the extending direction.   The shock-absorbing sheet according to claim 1, further comprising a third leg plate extending from an end edge of the connection plate on the base end side in the extending direction. The third leg plate has a recess extending from the end edge on the distal end side in the extending direction to the base end edge;
The buffer sheet according to claim 2, wherein the partition plate has a convex portion complementary to the concave portion.   The shock absorbing sheet according to claim 1, 2 or 3, wherein a side edge of the rear edge side of the middle partition plate of the first leg plate is arcuate.   The shock-absorbing sheet according to any one of claims 1 to 4, further comprising a fourth leg plate that extends from a front edge of the intermediate partition plate, is bent downward, and overlaps the second leg plate.

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