Molded pulp cushioning material

Abstract

To provide a pulp mold cushioning material that can be reduced in size while ensuring impact absorption performance.SOLUTION: A pulp mold cushioning material 10 has a side wall 11 and an upper wall 12A. A plurality of first support protrusions 11a are formed on the side wall 11, and a plurality of second support protrusions 12a are formed on the upper wall 12A. The plurality of first support protrusions 11a are aligned in an up-down direction and a front-rear direction. The plurality of second support protrusions 12a are aligned in the front-rear direction. A distance between two adjacent first support protrusions 11a in the up-down direction and a distance between two adjacent first support protrusions 11a in the front-rear direction are smaller than a distance between two adjacent second support protrusions 12a.SELECTED DRAWING: Figure 2A

Description

[Technical Field]

[0001] The present disclosure relates to molded pulp cushioning. [Background technology]

[0002] When transporting products such as electronic devices, cushioning materials are used to protect the products. The products are placed in outer boxes for transport with the cushioning materials attached to the outside. Molded products made from paper (pulp molded cushioning materials) are sometimes used as cushioning materials. Patent Document 1 listed below discloses a pulp molded cushioning material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-182499 Summary of the Invention [Problem to be solved by the invention]

[0004] Pulp molded cushioning supports products and other items contained within with multiple protrusions formed on the inside. If the height of the protrusions is large, the size of the outer box must be increased accordingly. This leads to a decrease in transportation efficiency. Therefore, a cushioning material that has sufficient cushioning function while keeping the height of the protrusions low is required. [Means for solving the problem]

[0005] One example of a pulp molded buffer proposed in the present disclosure is a pulp molded buffer into which at least a portion of a contained object is fitted in a first direction, the contained object having a first outer surface facing a first direction, two second outer surfaces opposing each other in a second direction intersecting the first direction, and two third outer surfaces opposing each other in a third direction intersecting the first and second directions. The pulp molded buffer has a first wall for supporting the first outer surface of the contained object and a second wall for supporting one of the two second outer surfaces of the contained object. The first wall has a plurality of first support protrusions protruding in the first direction, and the second wall has a plurality of second support protrusions. The first support protrusions are aligned in both the second and third directions. The second support protrusions are aligned in the third direction. The distance between two adjacent first support protrusions in the second direction and the distance between two adjacent first support protrusions in the third direction are smaller than the distance between two adjacent second support protrusions.

[0006] Another example of a pulp molded cushioning material proposed in the present disclosure is a pulp molded cushioning material that accommodates at least a portion of an object having a first outer surface facing a first direction, two second outer surfaces opposing each other in a second direction intersecting the first direction, and two third outer surfaces opposing each other in a third direction intersecting the first and second directions. The pulp molded cushioning material has a first wall for supporting the first outer surface of the object and two third walls opposing each other in the third direction for supporting the two third outer surfaces of the object, respectively. The first wall is formed with a plurality of first support protrusions that protrude in the first direction. The plurality of first support protrusions are aligned in the second direction and the third direction. Each of the two third walls is formed with a third support protrusion. The width of each of the plurality of first support protrusions in the third direction is smaller than 20% of the distance between the third support protrusions formed on the two third walls.

[0007] Another example of a pulp molded cushioning material proposed in the present disclosure is a pulp molded cushioning material for containing at least a portion of an object, the pulp molded cushioning material having a first outer surface facing a first direction, two second outer surfaces opposing each other in a second direction intersecting the first direction, and two third outer surfaces opposing each other in a third direction intersecting the first and second directions. The pulp molded cushioning material has a first wall for supporting the first outer surface of the object, and a plurality of first support protrusions formed on the first wall and aligned in the second and third directions. The width of the first wall in the third direction is larger than the width of the first wall in the second direction. The width of each first support protrusion in the third direction is the same as or smaller than the width of each first support protrusion in the second direction. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing an example of a pulp molded cushioning material proposed in the present disclosure. FIG. [Figure 2A] FIG. 2 is a side view of the pulp molded cushioning material shown in FIG. [Figure 2B] FIG. 2 is an enlarged view of region IIb shown in FIG. [Figure 3] 2A is a cross-sectional view of the molded pulp cushioning material in use, taken along line III-III in FIG. 2A. [Figure 4] 2A is a cross-sectional view of the pulp molded cushioning material in use, taken along line IV-IV in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] The pulp molded cushioning materials proposed in this disclosure will be described below with reference to the drawings. In this disclosure, as an example, pulp molded cushioning materials 10A and 10B shown in Figures 1 and 3 will be described.

[0010] Hereinafter, the Z1 and Z2 directions shown in Figure 1 and elsewhere will be referred to as the upper and lower directions, respectively. The X1 and X2 directions in the same figure will be referred to as the right and left directions, respectively, and the Y1 and Y2 directions will be referred to as the front and rear directions, respectively. These directions are defined to explain the shapes of the elements (parts) of the pulp molded cushioning material and their relative positional relationships. Therefore, the directions shown in the figures do not limit the position of the pulp molded cushioning material 10 during use. Hereinafter, the pulp molded cushioning material will be simply referred to as the "cushioning material."

[0011] As shown in FIGS. 3 and 4, the cushioning materials 10A and 10B are configured to accommodate the left or right portion of the object 90 when in use. Two cushioning materials 10A and 10B are used during the transport of the object 90. The two cushioning materials 10A and 10B accommodate the left and right portions of the object 90, respectively. The use of the cushioning materials 10A and 10B is not limited to this. The cushioning materials 10A and 10B may be configured to accommodate the entire object.

[0012] In the following description, in cases where no distinction is made between the two cushioning materials 10A and 10B, the cushioning materials 10A and 10B will be denoted by the reference numeral "10."

[0013] The contained item 90 is, for example, an electronic device. The electronic device is, for example, an entertainment device that functions as a game device or audio-visual device. The electronic device may also be a personal computer or a server computer. When in use, the cushioning material 10 is attached to the contained item 90 and is housed together with the contained item 90 in an outer box (not shown) for transportation.

[0014] As shown in Fig. 1, the cushioning material 10 is box-shaped and open on one side in the left-right direction. As shown in Fig. 3, the cushioning material 10 (10A) that accommodates the left part of the contained item 90 is open to the right, and the cushioning material 10 (10B) that accommodates the right part of the contained item 90 is open to the left. The structure of these two cushioning materials 10 may be symmetrical, or may be asymmetric depending on the outer shape of the contained item 90.

[0015] 1, the cushioning material 10 has a side wall 11 that faces and supports a side surface 90a (see FIG. 3) of the contained item 90. The cushioning material 10 also has an upper wall 12A, a lower wall 12B, a front wall 13A, and a rear wall 13B.

[0016] The upper wall 12A, the lower wall 12B, the front wall 13A, and the rear wall 13B each extend to one side in the left-right direction from the edge of the side wall 11. That is, in the cushioning material 10 (10A, see FIG. 3) that accommodates the left part of the contained item 90, the walls 12A, 12B, 13A, and 13B extend rightward from the edge of the side wall 11. In the cushioning material 10 (10B, see FIG. 3) that accommodates the right part of the contained item 90, the walls 12A, 12B, 13A, and 13B extend leftward from the edge of the side wall 11. The upper wall 12A and the lower wall 12B face and support the upper surface 90d and the lower surface 90e (see FIG. 3) of the contained item 90, respectively. The front wall 13A and the rear wall 13B face the front surface 90b and the rear surface 90c (see FIG. 4) of the contained object 90, respectively, and support them.

[0017] As shown in FIG. 2A, the width of the storage space inside the cushioning material 10 in the front-to-back direction (the distance between the third support protrusions 13a and 13b described later) is larger than the width of the storage space inside the cushioning material 10 in the up-down direction (the distance between the second support protrusions 12a and 12b described later).

[0018] The cushioning material 10 is a molded product made from paper (e.g., recycled paper) and is molded as a single unit, i.e., the walls 11, 12A, 12B, 13A, and 13B are not formed by folding two adjacent walls together, and are not connected to each other by applying an adhesive to the walls 11, 12A, 12B, 13A, and 13B.

[0019] 1, the side wall 11 is formed with a plurality of first support protrusions 11a for supporting the side surface 90a of the contained object 90. The first support protrusions 11a protrude toward the inside of the cushioning material 10 (in other words, protrude toward the side surface 90a of the contained object 90). The first support protrusions 11a support the side surface 90a of the contained object 90 with their top portions 11c. In other words, the top portions 11c contact the side surface 90a.

[0020] The first support protrusion 11a is recessed on the outside of the cushioning material 10. Therefore, the first support protrusion 11a has support walls 11e and 11f (see FIGS. 3 and 4) formed on the edge of the top 11c and extending outward in the left-right direction from the top 11c.

[0021] As shown in Figure 2A, the multiple first support protrusions 11a are lined up in two directions: the up-down direction (Z1-Z2 direction) and the front-back direction (Y1-Y2 direction). The first support protrusions 11a form multiple rows and multiple columns. The first support protrusions 11a in each row are lined up in the front-back direction. The first support protrusions 11a in each column are lined up in the up-down direction.

[0022] 2, the side wall 11 has 4 rows and 7 columns, but the numbers of rows and columns are not limited to this. That is, the number of rows may be less than 4 or more than 4. Similarly, the number of columns may be less than 7 or more than 7. Furthermore, the numbers of rows and columns may differ depending on the region of the side wall 11 (for example, the front region and the rear region).

[0023] As shown in FIG. 1, the upper wall 12A has a plurality of second support protrusions 12a aligned in the front-to-rear direction, and the lower wall 12B has a plurality of second support protrusions 12b aligned in the front-to-rear direction. The second support protrusions 12a of the upper wall 12A and the second support protrusions 12b of the lower wall 12B may be arranged symmetrically or asymmetrically. The second support protrusions 12a and 12b protrude toward the inside of the cushioning material 10. That is, the second support protrusions 12a of the upper wall 12A protrude downward, and the second support protrusions 12b of the lower wall 12B protrude upward. The second support protrusions 12a and 12b support the outer surfaces (upper surface 90d, lower surface 90e) of the contained item 90 with their peaks.

[0024] Each of the second support protrusions 12a and 12b has a columnar shape extending in the left-right direction. For example, the second support protrusions 12a and 12b may extend from one end of the upper wall 12A and the lower wall 12B in the left-right direction (the opening edge of the cushioning material 10) to the opposite end (the end closer to the side wall 11).

[0025] As shown in FIG. 1, the front wall 13A is formed with a plurality of third support protrusions 13a aligned in the vertical direction. Similarly, the rear wall 13B is formed with a plurality of third support protrusions 13b aligned in the vertical direction. The third support protrusions 13a of the front wall 13A and the third support protrusions 13b of the rear wall 13B may be arranged symmetrically or asymmetrically. The third support protrusions 13a and 13b protrude toward the inside of the cushioning material 10. That is, the third support protrusions 13a of the front wall 13A protrude rearward, and the third support protrusions 13b of the rear wall 13B protrude forward. The third support protrusions 13a and 13b support the outer surfaces (front surface 90b, rear surface 90c) of the contained item 90 with their peaks.

[0026] The third support protrusions 13a and 13b extend in the left-right direction. For example, the third support protrusions 13a and 13b may extend from one end (the opening edge of the cushioning material 10) of the front wall 13A and the rear wall 13B in the left-right direction to the opposite end.

[0027] 2B, two adjacent first support protrusions 11a in the front-rear direction are spaced a distance D1 from each other. Two adjacent first support protrusions 11a in the up-down direction are spaced a distance D2 from each other. Two adjacent second support protrusions 12a in the front-rear direction are spaced a distance D3 from each other.

[0028] Note that distance D1 may be, for example, the distance between the centers of the first support protrusions 11a in the front-to-rear direction. Similarly, distance D2 may be, for example, the distance between the centers of the first support protrusions 11a in the up-down direction. Distance D3 may be, for example, the distance between the centers of the second support protrusions 12a in the front-to-rear direction.

[0029] 2B, distances D1 and D2 are smaller than distance D3. This arrangement of first support protrusions 11a allows the number of first support protrusions 11a to be increased, improving the shock absorption performance of side walls 11, which are more susceptible to external shocks than upper wall 12A and lower wall 12B. This makes it possible to reduce, for example, the thickness of side walls 11 (e.g., the height of first support protrusions 11a in the left-right direction), thereby reducing the size of the outer box.

[0030] Distance D1 and distance D2 may be smaller than half of distance D3. This arrangement of the first support protrusions 11a allows the number of first support protrusions 11a to be further increased, and the shock absorption performance of the side wall 11 can be further improved.

[0031] As shown in Figure 4, each first support protrusion 11a has a width W3 in the front-to-rear direction. The front wall 13A and the rear wall 13B each have third support protrusions 13a and 13b. The third support protrusion 13a formed on the front wall 13A and the third support protrusion 13b formed on the rear wall 13B are separated by a distance L3. The width W3 of the first support protrusion 11a may be less than 20% of the distance L3.

[0032] As described above, the width of the storage space inside the cushioning material 10 in the front-to-back direction (Y1-Y2 direction), i.e., the distance L3 between the third support protrusions 13a and 13b, is greater than the width of the storage space inside the cushioning material 10 in the up-down direction, i.e., the distance L2 between the second support protrusions 12a and 12b (see FIG. 3A). As shown in FIG. 4, by making the width W3 of the first support protrusions 11a less than 20% of the distance L3, a sufficient number of first support protrusions 11a can be ensured in the direction of the larger width (front-to-back direction). Note that the width W3 of some of the first support protrusions 11a formed on the side wall 11 may be outside the range described here (less than 20% of the distance L3).

[0033] The width W3 of the first support protrusions 11a may be smaller than 15% of the distance L3. This allows more first support protrusions 11a to be secured in the front-to-rear direction. More preferably, the width W3 of the first support protrusions 11a may be smaller than 10% of the distance L3.

[0034] The width W3 of the first support protrusion 11a may be 5% or more of the distance L3. If the first support protrusion 11a is excessively small, it becomes difficult to form the first support protrusion 11a. By setting the width W3 of the first support protrusion 11a to 5% or more of the distance L3, it is possible to ensure that the first support protrusion 11a is easily formed.

[0035] As shown in FIG. 4, a groove 11g is formed between two adjacent first support protrusions 11a in the front-rear direction. The width of the groove 11g is smaller than the width W3 of the first support protrusions 11a. This makes it easier to ensure a sufficient number of first support protrusions 11a in the front-rear direction of the cushioning material 10. The width of the groove 11g in the front-rear direction may be smaller than half the width W3 of the first support protrusions 11a. This makes it even easier to ensure a sufficient number of first support protrusions 11a.

[0036] As shown in FIG. 3, each first support protrusion 11a has a width W2 in the vertical direction. The upper wall 12A and the lower wall 12B each have a second support protrusion 12a and 12b. The second support protrusion 12a formed on the upper wall 12A and the second support protrusion 12b formed on the lower wall 12B are separated by a distance L2. The width W2 of the first support protrusion 11a may be less than 30% of the distance L2. This makes it possible to ensure a sufficient number of first support protrusions 11a not only in the front-rear direction but also in the vertical direction. Note that the width W2 of some of the first support protrusions 11a formed on the side wall 11 may be outside the range described here (less than 30% of the distance L2).

[0037] The width W2 of the first support protrusions 11a may be smaller than 25% of the distance L2. This allows more first support protrusions 11a to be secured in the vertical direction. More preferably, the width W2 of the first support protrusions 11a may be smaller than 20% of the distance L2.

[0038] The width W2 of the first support protrusion 11a may be 5% or more of the distance L2. If the first support protrusion 11a is excessively small, it becomes difficult to form the first support protrusion 11a. By setting the width W2 of the first support protrusion 11a to 5% or more of the distance L2, it is possible to ensure that the first support protrusion 11a is easily formed.

[0039] As shown in FIG. 3, a groove 11h is formed between adjacent first support protrusions 11a in the vertical direction. The width of the groove 11h in the vertical direction is smaller than the width W2 of the first support protrusions 11a. This makes it easier to ensure a sufficient number of first support protrusions 11a in the vertical direction of the cushioning material 10. The width of the groove 11h in the vertical direction may be smaller than half the width W2 of the first support protrusions 11a. This makes it even easier to ensure a sufficient number of first support protrusions 11a.

[0040] The width W2 in the up-down direction (see FIG. 3) and the width W3 in the front-to-back direction (see FIG. 4) of each first support protrusion 11a may be, for example, 0.5 cm or more and 3.0 cm or less. The widths W2 and W3 may preferably be 1.0 cm or more and 2.5 cm. The width of the groove 11g between adjacent first support protrusions 11a in the front-to-back direction and the width of the groove 11h between adjacent first support protrusions 11a in the up-to-down direction may be smaller than the widths W2 and W3. This ensures a sufficient number of first support protrusions 11a in both the front-to-back direction and the up-to-down direction.

[0041] The width W2 in the up-down direction may vary in at least one of the front-to-back direction and the up-to-down direction of the cushioning material 10. For example, the width W2 may gradually decrease from the front end to the rear end of the cushioning material 10. Similarly, the width W3 in the up-to-down direction may vary in at least one of the front-to-back direction and the up-to-down direction of the cushioning material 10.

[0042] As yet another example, the widths W2 and W3 may differ depending on the region (e.g., the front region and the rear region) of the side wall 11. For example, the width W2 (or width W3) of the first support protrusions 11a in the front region may be different from the width W2 (or width W3) of the first support protrusions 11a in the rear region. Furthermore, the widths W2 and W3 of some of the first support protrusions 11a may be outside the above-mentioned range (0.5 cm to 4.0 cm).

[0043] 2A, the width of the side wall 11 on which the plurality of first support protrusions 11a are formed in the front-rear direction is greater than the width of the side wall 11 in the up-down direction. However, the width W3 of the first support protrusions 11a in the front-rear direction (see FIG. 4) and the width W2 in the up-down direction (see FIG. 3) may be substantially the same. Alternatively, the width W3 may be smaller than the width W2 in the up-down direction.

[0044] This makes it easier to ensure a sufficient number of first support protrusions 11a in the front-to-rear direction compared to, for example, a case where width W3 is made larger than width W2 to match the shape of side wall 11 (where the width in the front-to-rear direction is larger than the width in the up-down direction). As described above, the width of groove 11g (see FIG. 4) between adjacent first support protrusions 11a in the front-to-rear direction is smaller than width W3 in the front-to-rear direction. This makes it even easier to ensure a sufficient number of first support protrusions 11a in the front-to-rear direction.

[0045] 3 and 4, each first support protrusion 11a has a height H in the left-right direction. A width W3 in the front-rear direction and a width W2 in the up-down direction may be greater than the height H. This ensures ease of molding of the first support protrusion 11a.

[0046] (1) An example of a pulp molded cushioning material proposed in this disclosure is a pulp molded cushioning material into which at least a portion of a contained object is fitted in a first direction, the contained object having a first outer surface facing a first direction, two second outer surfaces opposing each other in a second direction intersecting the first direction, and two third outer surfaces opposing each other in a third direction intersecting the first and second directions. The pulp molded cushioning material has a first wall for supporting the first outer surface of the contained object and a second wall for supporting one of the two second outer surfaces of the contained object. The first wall is formed with a plurality of first support protrusions protruding in the first direction, and the second wall is formed with a plurality of second support protrusions. The plurality of first support protrusions are aligned in the second direction and the third direction, and the plurality of second support protrusions are aligned in the third direction. The distance between two adjacent first support protrusions in the second direction and the distance between two adjacent first support protrusions in the third direction are smaller than the distance between two adjacent second support protrusions. This pulp molded cushioning material allows the number of first support protrusions to be increased. As a result, the height of the first support protrusions can be reduced while ensuring shock absorption performance in the first direction.

[0047] (2) In the pulp molded cushioning material of (1), the distance between two adjacent first support protrusions in the second direction and the distance between two adjacent first support protrusions in the third direction are smaller than half the distance between two adjacent second support protrusions, thereby enabling the formation of even more first support protrusions.

[0048] (3) The pulp molded buffer material of (1) or (2) further includes two third walls facing each other in the third direction for respectively supporting the two third outer surfaces of the contained object. A third support protrusion is formed on each of the two third walls. The width of each of the multiple first support protrusions in the third direction is less than 20% of the distance between the third support protrusions formed on the two third walls. This pulp molded buffer material makes it possible to further increase the number of first support protrusions lined up in the third direction.

[0049] (4) The pulp molded buffer material of any one of (1) to (3) further includes two second walls facing each other in the second direction for respectively supporting two third outer surfaces of the contained object. Each of the two second walls has a second support protrusion formed thereon. The width of each of the multiple first support protrusions in the second direction is less than 30% of the distance between the second support protrusions formed on the two second walls. This pulp molded buffer material makes it possible to further increase the number of first support protrusions lined up in the second direction.

[0050] (5) In the pulp molded cushioning material of any one of (1) to (4), the width of the first wall in the third direction may be greater than the width of the first wall in the second direction. The width of each first support protrusion in the third direction may be the same as or smaller than the width of each first support protrusion in the second direction. This makes it possible to further increase the number of first support protrusions in the third direction.

[0051] (6) In the pulp molded cushioning material of any one of (1) to (5), a groove may be formed between two adjacent first support protrusions in the third direction, and the width of the groove may be smaller than the width of the support protrusions in the third direction, thereby making it possible to further increase the number of first support protrusions in the third direction.

[0052] (7) An example of a pulp molded cushioning material proposed in this disclosure is a pulp molded cushioning material that accommodates at least a portion of an object having a first outer surface facing a first direction, two second outer surfaces facing each other in a second direction intersecting the first direction, and two third outer surfaces facing each other in a third direction intersecting the first and second directions. The pulp molded cushioning material has a first wall for supporting the first outer surface of the object and two third walls facing each other in the third direction for supporting the two third outer surfaces of the object, respectively. The first wall is formed with a plurality of first support protrusions that protrude in the first direction. The plurality of first support protrusions are aligned in the second direction and the third direction. Each of the two third walls is formed with a third support protrusion. The width of each of the plurality of first support protrusions in the third direction is smaller than 20% of the distance between the third support protrusions formed on the two third walls. This pulp molded cushioning material allows for an increased number of first support protrusions aligned in the third direction, thereby reducing the height of the first support protrusions while ensuring shock absorption performance in the first direction.

[0053] (8) Another example of a pulp molded buffer proposed in this disclosure is a pulp molded buffer that accommodates at least a portion of an object, the object having a first outer surface facing a first direction, two second outer surfaces facing each other in a second direction intersecting the first direction, and two third outer surfaces facing each other in a third direction intersecting the first and second directions. The pulp molded buffer includes a first wall for supporting the first outer surface of the object, and a plurality of first support protrusions formed on the first wall and aligned in the second and third directions. The width of the first wall in the third direction is larger than the width of the first wall in the second direction. The width of each first support protrusion in the third direction is the same as or smaller than the width of each first support protrusion in the second direction. This pulp molded buffer allows the number of first support protrusions in the third direction to be increased. As a result, the height of the first support protrusion can be reduced while ensuring the ability to absorb impacts acting in the first direction.

[0054] The pulp molded cushioning material proposed in this disclosure is not limited to the cushioning material 10, and various modifications may be made.

[0055] For example, the shape and size of the first support protrusions 11a may vary depending on the position on the side wall 11. In addition, in the example shown in Fig. 2 etc., the first support protrusions 11a are rectangular, but the shape is not limited to this. For example, the side wall 11 may have first support protrusions 11a that are triangular or circular in side view. [Explanation of symbols]

[0056] 10·10A·10B: Pulp mold cushioning material, 11: Side wall, 11a: First support protrusion, 11c: Top, 11e·11f: Support wall, 11g·11h: Groove, 12A: Upper wall, 12B: Lower wall, 12a and 12b: second support protrusion, 13A: front wall, 13B: rear wall, 13a: third support protrusion, 90: object to be accommodated, 90a: side surface, 90b: front surface, 90c: rear surface, 90d: upper surface, 90e: lower surface.

Claims

1. A pulp molded cushioning material in which at least a portion of an object to be contained is fitted in the first direction, the cushioning material having a first outer surface facing a first direction, two second outer surfaces facing each other in a second direction intersecting the first direction, and two third outer surfaces facing each other in a third direction intersecting the first and second directions, a first wall for supporting the first outer surface of the object; a second wall for supporting one of the two second outer surfaces of the object to be contained; and a plurality of first support protrusions protruding in the first direction are formed on the first wall; a plurality of second support protrusions are formed on the second wall; the plurality of first support protrusions are aligned in the second direction and the third direction, the plurality of second support protrusions are aligned in the third direction, The distance between the centers of two adjacent first support protrusions in the second direction and the distance between the centers of two adjacent first support protrusions in the third direction are smaller than the distance between the centers of two adjacent second support protrusions in the third direction. Molded pulp cushioning material.

2. The distance between the centers of two adjacent first support protrusions in the second direction and the distance between the centers of two adjacent first support protrusions in the third direction are smaller than half the distance between the centers of two adjacent second support protrusions in the third direction. The pulp molded cushioning material according to claim 1.

3. The container further includes two third walls that face each other in the third direction and that support the two third outer surfaces of the container, respectively; a third support protrusion is formed on each of the two third walls; The width of each of the plurality of first support protrusions in the third direction is smaller than 20% of the distance between the third support protrusions formed on the two third walls. The pulp molded cushioning material according to claim 1.

4. The container further includes two second walls that face each other in the second direction and that support two second outer surfaces of the container, respectively; Each of the two second walls is formed with a second support protrusion, The width of each of the plurality of first support protrusions in the second direction is smaller than 30% of the distance between the second support protrusions formed on the two second walls. The pulp molded cushioning material according to claim 3.

5. a width of the first wall in the third direction is greater than a width of the first wall in the second direction; The width of each of the first support protrusions in the third direction is the same as or smaller than the width of each of the first support protrusions in the second direction. The pulp molded cushioning material according to claim 1.

6. a groove is formed between two first support protrusions adjacent to each other in the third direction, The width of the groove is smaller than the width of the first support protrusion in the third direction. The pulp molded cushioning material according to claim 5.

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