JP6245962B2 - Returnable packaging material - Google Patents

Description

  The present invention relates to a returnable packaging material that is used for packaging a packaged object having a predetermined shape such as a water heater, and can be returned and used repeatedly after use.

  Conventionally, as this type of packaging material, upper and lower support members applied to the top and bottom surfaces of an object to be packaged such as a water heater, and upper and lower exteriors stacked separately from above and below each support member There is a thing provided with a cover (patent documents 1).

JP 2006-168863 A

However, in the above-described conventional packaging material, the packaging material is divided into two types of members, that is, a support member and an exterior cover, after the article to be packaged is brought into the installation site. Therefore, handling such as transportation work is troublesome and complicated. Furthermore, the set quantity of the support member and the exterior cover that have been recovered due to loss of one type of member at the time of return may not match, and the amount management is required for each type of member. It was hanging.
On the other hand, for example, when a packaging material is configured with one member of an exterior cover without using a support member, in the case of a product such as a water heater as an article to be packaged, a front plate is provided on the front surface of the outer case and the front case and the front case. Since it has the predetermined shape which protrudes the joining flange which protrudes on an outer periphery in the junction part with a board, there exists a possibility that protection at the time of conveyance and handling may become inadequate with respect to a front board and a joining flange.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a returnable packaging material that is easy and easy to handle with return and that improves the protection performance of a packaged object of a predetermined shape. And

The returnable packaging material according to the present invention is
A packaging material that has a front plate on the front surface of the outer case as a packaged object and that has a joining flange protruding from the outer periphery at the joint between the outer case and the front plate, and is separately stacked on the bottom surface and the top surface. Because
An exterior tray that integrally forms a bottom wall, a side wall surrounding the periphery of the bottom wall, and an upper and lower two-level step formed on the inner surface side of the side wall;
On the lower step portion of the outer tray, a top bottom cushioning material that is applied to the bottom surface of the package or the outer peripheral portion of the top surface is integrally provided,
On the upper step of the outer tray, a side cushioning material that is applied to the outer peripheral portion of the lower end of the package or the upper end of the side is provided integrally .
The top bottom cushioning material is formed to be harder than the side cushioning material.

  With the above configuration, the top tray cushioning material and the side cushioning material applied to the package are integrally provided on the outer tray, so that the package is not divided into two types of members after loading the package. The member does not become bulky when the material is returned, and handling at the time of return is simple, and it is not necessary to manage each type of member when collecting.

Furthermore, by forming two stepped upper and lower stepped portions on the side wall of the exterior tray, each stepped portion can be provided with a different cushioning material having different hardness depending on the location to protect the object to be packaged in a predetermined shape.
In other words, the front plate on the side of the packaged object is not as rigid as the bottom or top surface of the packaged object, so there is a risk of dents and deformation when subjected to a load when a hard cushioning material is applied. .
Therefore, in the above configuration, a relatively soft cushioning material (side cushioning material) is provided at the upper stepped portion, so that the side cushioning material prevents lateral deformation of the front plate while preventing lateral deformation of the front plate. The load can be absorbed.
On the other hand, the bottom surface and top surface of the package are relatively stiffer than the side surfaces, but if a soft cushioning material is applied, the weight of the package is often added, so the load in the vertical direction is sufficiently received. There is a risk that the bottom or top of the package will be deformed.
Therefore, in the above configuration, the lower step portion is provided with a cushioning material (top bottom cushioning material) that is harder than the side cushioning material. The longitudinal load on the surface can be absorbed.
In this way, a package with a predetermined shape is provided by providing a cushioning material with the required hardness in consideration of the ease of damage, the degree of impact received during transportation and handling, etc. The protection performance of things can be improved.

In the above returnable packaging material,
It is desirable that the top bottom cushioning material disposed on the front side of the packaged object is formed to have a height longer than the protruding length of the joint flange of the packaged object.
Thereby, even if the article to be packaged moves to the front side during transportation and handling, the lower or upper joining flange is received over the protruding length by the front ceiling cushioning material, and damage to the joining flange can be prevented. .

In the above returnable packaging material,
In order to avoid contact with the joint flange of the article to be packaged, it is desirable to form a relief part where the ceiling bottom cushioning material is not provided at both ends of the ceiling cushioning material disposed on the front side of the article to be packaged.
By the way, when the article to be packaged receives a longitudinal load along with dropping or the like and moves to the front side, the lower or upper joint flange is strongly pressed over the entire length against the compressed top cushioning material, Both end portions of the lower or upper joint flange are not relatively rigid and may be deformed.
Therefore, in the above configuration, the both end portions of the front ceiling cushioning material constitute a relief portion where the ceiling cushioning material is not provided, and contact with both ends of the lower or upper joining flange in the package is avoided. To be.
Therefore, even if the article to be packaged moves to the front side due to dropping or the like, the both ends of the lower or upper joint flange are free from contact with the top cushioning material by the relief part and are not loaded. Therefore, deformation of both end portions can be prevented. Furthermore, since the load is not applied to the lower surface of the front plate or both ends of the upper surface without contact with the ceiling cushioning material by the relief portion when a longitudinal load is applied to the package, the lower surface of the front plate or Deformation of both ends of the upper surface can be prevented.

In the above returnable packaging material,
The side cushioning material disposed on the front side of the article to be packaged constitutes a space part in which the side cushioning material is not provided in the central part in order to avoid contact with the front plate of the article to be packaged.
It is desirable that the top-bottom cushioning material disposed on the front side of the article to be packaged be disposed at the position of the space where no side cushioning material is provided in the center.
By the way, when the packaged material in the packaging state falls down to the front side with the packaging material, if the lower end or upper end of the front plate is strongly pressed against the front side cushioning material over the entire length, the lower end or upper end of the front plate Since the rigidity of the central part is not relatively strong, the central part may be deformed.
Therefore, in the above configuration, the central portion of the front side cushioning material constitutes a space portion in which the side cushioning material is not provided, and contact with the lower end portion of the front plate or the central portion of the upper end portion of the package is avoided. I try to do it.
Therefore, even if the article to be wrapped falls to the front side and the lower end portion or upper end portion of the front plate is strongly pressed against the front side cushioning material, the lower end portion or the central portion of the upper end portion of the front plate is separated by the space portion by the side cushioning material. Therefore, the center portion can be prevented from being deformed.
On the other hand, the front ceiling cushioning material is also arranged at the position of the space where no side cushioning material is provided in the center, so the longitudinal load on the front plate is absorbed by the ceiling cushioning material before Damage to the plate can be prevented.

In the above returnable packaging material,
On the lower part of the side wall of the outer tray located on the front side of the packaged object, a recess that is recessed outward from the extension line of the bonding flange of the packaged object is formed in the lower part that continues to the lower stepped part. desirable.
Thus, even if the front ceiling cushioning material compresses due to dropping or the like, and the lower end portion or upper end portion of the joining flange protrudes beyond the thickness of the ceiling cushioning material, the joint flange becomes Since contact with the side wall is avoided, damage to the joint flange can be prevented.

  According to the packaging material according to the present invention, the top and bottom cushioning material and the side cushioning material are integrally provided on the exterior tray and are not divided into two kinds of members when returned, and thus handling associated with the return is easy and easy. In addition, by forming two stepped upper and lower steps on the side wall of the exterior tray and using different cushioning materials with different hardnesses on each stepped portion, the protection performance of the front plate and joint flange that are easily damaged in the package Can be improved.

It is a perspective view for explanation of the example of use which makes a product a packaging state with the packaging material by an embodiment. It is a top view which shows the structure of a packaging material. It is the perspective view showing the state where the structure inside the front wall surface in a packaging material was easy to see. It is the perspective view showing the state where the structure inside the back wall surface in a packaging material was easy to see. It is the perspective view showing the state where the structure of the outer side of the front wall surface in a packaging material was easy to see. It is the perspective view showing the state where the structure of the outer side of the rear wall surface in a packaging material was easy to see. It is sectional drawing which shows the structure of the product packaging state in a packaging material. It is a perspective view which shows the state which accumulated the packaging material at the time of packaging material return.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 1, the packaging material 1 of embodiment is externally fitted by the top | upper surface and bottom face of the product 2 as a packaged thing, respectively, and the exterior tray which affixed the shock absorbing material on the inner wall surface 11. The top surface of the product 2 is the outer surface of the upper portion of the product 2, and the bottom surface of the product 2 is the outer surface of the lower portion of the product 2. The product 2 as the packaged object of a predetermined shape is exemplified by a water heater. The water heater has, in terms of appearance, a vertically long box-like outer case 21 that accommodates equipment, and a plate-like front plate 22 that is attached to the front opening of the outer case 21, and the outer case 21 and the front plate 22 are joined to each other. It has an outer shape in which a joining flange 23 projecting to the outer periphery is provided on the outer part. Further, a pipe 24 (see FIG. 7) such as a water pipe or a gas pipe protrudes from the bottom surface of the outer case 21. And the packaging material 1 is comprised so that the protection function of the front board 22 and the joining flange 23 which are easy to be damaged at the time of transportation and handling in the water heater which is the product 2 will be improved. Note that the upper and lower packaging materials 1 that are externally fitted to the top and bottom surfaces of the product 2 are the same.

  Referring to FIGS. 2 to 6, the exterior tray 11 constituting the packaging material 1 is integrally formed of a synthetic resin such as PP or PET, and includes a substantially rectangular bottom wall 5 and a bottom wall 5. It has a side wall 6 surrounding the periphery, and is formed in a rectangular tray shape with an open top surface. Further, a flange 65 extending outward from the upper end of the side wall 6 is formed on the outer periphery of the upper surface of the outer tray 11 which is opened. Therefore, when carrying the packaged product 2 or the packaging material 1 itself by the packaging material 1, it can be easily held by placing a finger on the flange 65. Furthermore, when the packaging products 1 are arranged side by side with the packaging material 1, the distance between the products 2 can be secured by the flange 65, and contact between adjacent products 2 can be prevented.

  The bottom wall 5 is formed in a convex shape on the outer periphery, and an outer convex recess 51, an inner rectangular frame recess 52, and an arrow-shaped recess 53 in the center are on the outside of the flat surface of the bottom wall 5. Is recessed from the inner surface to the inner surface (see FIGS. 5 and 6). The strength of the bottom wall 5 is ensured by these depressions 51 to 53. The arrow-shaped depression 53 in the center indicates that the side indicated by the arrow corresponds to the front side of the product 2. Concave grooves 54 for arranging the binding band 3 (see FIG. 1B) are formed continuously in the front-rear direction on the left and right positions of the outer surface of the bottom wall 5 (see FIGS. 5 and 6). .) Further, since the front and rear flanges 65 are formed with left and right cutout portions 66 for locking the binding band 3 at positions corresponding to the concave groove portions 54, the cutout portions 66 make it easy to hook the binding band 3 and make it difficult to remove. be able to.

  The side wall 6 is formed to be inclined so as to gradually expand outward from the periphery of the bottom wall 5, and the front wall surface 61 and the rear wall surface 62 disposed on the long side in the rectangular outer tray 11, It consists of four wall surfaces, a right wall surface 63 and a left wall surface 64 disposed on the short side. The side wall 6 is formed with upper and lower stepped portions 71 and 72 which are recessed from the outside to the inside and travel on the inner surface side, and the lower and upper stepped portions 71 and 72 have cushioning materials (tops) having different hardnesses. A bottom cushioning material 12 and a side cushioning material 13) are provided by pasting.

  The upper stepped portion 71 is formed narrow at the center portion of the rear wall surface 62, but is formed over substantially the entire circumference of the side wall 6. The lower stepped portion 72 is formed in a divided manner on each of the wall surfaces 61 to 64 of the side wall 6. That is, the lower stepped portion 72 is formed in the center portion on the right wall surface 63 and the left wall surface 64, is formed in the right end side portion and the left end side portion on the rear wall surface 62, and the intermediate wall portion and both end portions are formed on the front wall surface 61. Except for, it is formed over substantially the entire length. The lower stepped portion 72 is provided with a prismatic top-bottom cushioning material 12 applied to the bottom surface of the product 2 or the outer peripheral portion of the top surface, and the upper stepped portion 71 has a lower side end or a side upper end of the product 2. A prismatic side cushioning material 13 that is applied to the outer peripheral portion of the prism is provided.

  A total of six top cushioning members 12 are provided on the lower stepped portions 72 formed on the respective wall surfaces 61 to 64 of the side wall 6 with an adhesive or the like. That is, the top-bottom cushioning material 12 is disposed at three symmetrical positions on the right and left sides of the outer tray 11 and receives the bottom surface of the product 2 or the outer peripheral portion of the top surface in a balanced manner. In the upper stepped portion 71, the side cushioning material 13 is provided in a total of four, two on the left and right sides on the front wall surface 61 side and two on the left and right sides extending from the left and right wall surfaces 63 and 64 to the rear wall surface 62 side. Specifically, the side cushioning material 13 is provided at the left and right positions on the front wall surface 61 side by being adhered to the upper stepped portion 71 with an adhesive or the like in the range from the left and right corner portions to the vicinity of the center. On the side of the left and right wall surfaces 63, 64 and the rear wall surface 62, the side cushioning material 13 formed in an L shape is provided within a range connecting the formation positions of the top and bottom cushioning materials 12 adjacent to the left and right corner portions on the rear side. The left and right portions are provided on the upper stepped portion 71 with an adhesive or the like. Then, the side cushioning material 13 is set to a size such that the inner side covers the top cushioning material 12 slightly (see FIG. 7), and the inner peripheral diameter formed by the inner side surface of each side cushioning material 13 is the side surface of the product 2. Is substantially the same as the outer diameter of the. Thereby, the outer peripheral part of the lower end of the side surface or the upper end of the side surface of the product 2 is surely applied to the side cushioning material 13, and the outer peripheral part of the bottom surface or the top surface of the product 2 is reliably applied to the top bottom cushioning material 12. Is positioned.

  As described above, since the top bottom cushioning material 12 and the side cushioning material 13 applied to the product 2 are integrally provided on the exterior tray 11, after the product is loaded, as in the conventional example (Japanese Patent Laid-Open No. 2006-168663), two Since it is not divided into types of members (supporting member and exterior cover), the members do not become bulky when returning packaging materials, and handling at the time of return is simple, and there is no need to manage each type of member when collecting . Further, since the side cushioning material 13 and the top cushioning material 12 are divided into a plurality of parts, only the cushioning materials 12 and 13 at positions damaged by use can be replaced, thereby reducing repair labor and costs. be able to.

  The side cushioning material 13 is set to a size that is the same height as the upper end of the side wall 6 of the outer tray 11, but may be a little higher than the position of the upper end of the side wall 6. Thus, when the packaging material 1 is in the packaged state of the product 2 or when the packaging material 1 is returned, the side cushioning material 13 can be grasped even if the upper end of the side wall 6 of the exterior tray 11 at the position where the side cushioning material 13 is formed is grasped by hand. Due to the cushioning action, the hand is not strongly pressed at the upper end of the side wall 6 of the exterior tray 11, and the product 2 and the packaging material 1 can be easily carried.

  The side wall 6 is formed with various bulging portions that are not recessed inward and bulge outward to ensure the strength of the exterior tray 11. With reference to FIGS. 5 and 6, corresponding to the four corners of the bottom wall 5, two corner bulging portions 81 (on the rear wall surface 62 side) and the bottom wall 5 extending from the corners of the bottom wall 5 to the lower stepped portion 72. The two corner bulging portions 82 (front wall 61 side) from the corners to the upper stepped portion 71 strengthen the rigidity at the four corners of the exterior tray 11 to ensure the shape retention of the exterior tray 11. . A wide bulging portion 83 (see FIG. 6) extending from the bottom wall 5 to the upper stepped portion 71 at the center of the rear wall 62 ensures the rigidity of the rear wall 62 and the shape retention of the exterior tray 11. Yes. In addition, the two narrow bulging portions 84 reaching the flange 65 in the wide bulging portion 83 reinforce the strength of the wide bulging portion 83. Referring to FIG. 5, a narrow lower bulging portion 85 extending from the vicinity of bottom wall 5 to lower stepped portion 72 and a narrow width extending from lower bulging portion 85 to flange 65 at an intermediate point portion of front wall surface 61. An upper bulging portion 86, a middle bulging portion 87 left and right reaching the lower stepped portion 72 at the middle of the front wall, and a corner bulging portion 88 formed at both ends of the lower stepped portion 72 of the front wall. In both cases, the rigidity of the front wall surface 61 is ensured.

  To package the product 2 with the packaging material 1 having the above-described configuration, with reference to FIG. 1, the front plate 22 side of the product 2 is directed toward the side indicated by the arrow (arrow-shaped depression 53) of the packaging material 1. One packaging material 1 is fitted to the bottom surface of the product 2 covered with the bag 4 so as to be applied to the top surface cushioning material 12 and the side surface cushioning material 13, and another packaging material 1 is applied to the top surface of the product 2. Are inserted in the same manner with the top and bottom reversed (see FIG. 1A). In this state, when the two binding bands 3 are locked between the upper and lower wrapping materials 1 in the notch portions 66 and the recessed groove portions 54 and wound and fastened, the packaging of the product 2 is completed (see FIG. 1B). ). If necessary, a tubular heat-shrink film may be passed through the packaged product 2 in the vertical direction to heat-shrink and cover the whole. And after the product 2 in this packaging state is unpacked on the user side, as shown in FIG. 8, the upper and lower packaging materials 1 are stacked in the same direction and are transported to the shipping factory and returned, It is used repeatedly until the packaging material 1 is damaged.

  The top cushioning material 12 and the side cushioning material 13 described above can be formed of a material having impact absorption performance, cushioning properties, etc., such as foamed or non-foamed synthetic resin, A material having higher hardness than the side cushioning material 13 is used. That is, by forming the upper and lower stepped portions 71 and 72 on the side wall 6 of the exterior tray 11, each stepped portion 71 and 72 has a cushioning material 12 having different hardness depending on the location where the product 2 having a predetermined shape is protected. , 13 can be provided separately.

  Specifically, the side surface of the product 2, particularly the front plate 22, is not high in rigidity as compared with the bottom surface or top surface of the product 2, so that when a hard cushioning material is applied, it is pressed against the cushioning material when subjected to a load. The front plate 22 may be dented or deformed. Therefore, it is preferable to apply a cushioning material having a relatively soft cushioning property to the side surface of the product 2. Therefore, a side cushioning material 13 having a low hardness is provided in the upper stepped portion 71 so as to correspond to the outer peripheral portion of the side surface lower end or side surface upper end of the product 2 so that the front plate 22 is not strongly pressed by the side cushioning material 13. And absorb the lateral load on the product 2 (see FIG. 7A).

  On the other hand, the bottom surface or top surface of the product 2 is relatively higher in rigidity than the side surface, but the weight of the product 2 is often added to the cushioning material. Therefore, when the soft cushioning material is applied, the bottom surface or top surface of the product 2 is applied. There is a risk that it will not be able to fully receive the load on and will be deformed. Therefore, it is preferable to apply a cushioning material having a certain degree of hardness and high shock absorption to the bottom surface or top surface of the product 2. Accordingly, the bottom surface cushioning material 12 having a hardness higher than that of the side surface cushioning material 13 is provided in the lower stepped portion 72 so as to correspond to the bottom surface of the product 2 or the outer peripheral portion of the top surface. Is absorbed (see FIG. 7A). In this way, a cushioning material having a necessary hardness is arranged in accordance with the portion to be protected of the product 2 in consideration of the degree of impact received during transportation and handling for each portion to be protected by the product 2. The protection performance of the product 2 can be improved.

  In the side wall 6, the lower stepped portions 72 are formed at the same height, and the upper stepped portion 71 is also at the same height. Each of the prismatic top cushioning materials 12 provided in the lower stepped portion 72 is set to the same height, and each of the prismatic side cushioning materials 13 provided in the upper stepped portion 71 is also set to the same height. Then, as shown in FIG. 7A, the top bottom cushioning material 12 has the top surface set to the same height as the upper stepped portion 71 and has a height longer than the protruding length of the joining flange 23 of the product 2. doing. Thereby, even if the product 2 moves to the front side during transportation and handling, the lower or upper joining flange 23 is received over the projecting length by the front ceiling cushioning material 12 to prevent the joining flange 23 from being damaged. it can. Further, the top bottom cushioning material 12 disposed on the front side of the product 2 is formed to have a size to which the lower surface or the upper surface of the front plate 22 in front of the joining flange 23 is applied. Therefore, it is possible to prevent the front plate 22 from being damaged by absorbing the longitudinal load on the product 2 during transportation and handling.

By the way, when a vertical load is applied to the product 2 due to dropping or the like, the top bottom cushioning material 12 is compressed. When the product 2 moves to the front side in this state, the top bottom cushioning material 12 on the compressed front side is lowered. The side or upper joint flange 23 can be strongly pressed over its entire length. Then, both end portions of the lower or upper joint flange 23 are not relatively rigid, and may be deformed by pressing the compressed top cushioning member 12.
Therefore, with reference to FIG. 2, FIG. 3, and FIG. 7B, in the embodiment, both end portions of the front ceiling cushioning material 12 constitute a relief portion 73 in which the ceiling cushioning material 12 is not provided. 2, contact with both ends of the lower or upper joint flange 23 is avoided. Therefore, even if the product 2 moves to the front side due to dropping or the like, the both end portions of the lower or upper joining flange 23 are not in contact with the top floor cushioning material 12 by the relief portion 73 (FIG. 7 ( Since the load is not applied in the case of B), it is possible to prevent deformation of both end portions of the lower or upper joint flange 23. At the same time, the front plate 22 is not subjected to a load on the lower surface or both ends of the upper surface of the front plate 22 without contact with the top cushioning material 12 by the escape portion 73 when a longitudinal load is applied to the product 2. It is possible to prevent deformation of the lower surface or both end portions of the upper surface.

  Further, a recess 74 that is recessed outward from the extension line of the joint flange 23 of the product 2 is formed in the lower portion of the front wall surface 61 that is continuous with the lower stepped portion 72 (see FIGS. 3 and 7). .) Thereby, even when the front top bottom cushioning material 12 is compressed due to dropping or the like, and the leading end portion of the joining flange 23 protrudes beyond the thickness of the top bottom cushioning material 12, the joint flange 23 is made to move to the front wall surface by the recess 74. Since contact with 61 is avoided, damage to the joining flange 23 can be prevented.

  Further, referring to FIG. 7A, the top bottom cushioning material 12 on the front wall surface 61 side is provided such that the inner portion 12a slightly protrudes from the inner edge of the lower stepped portion 72 and protrudes inward. . As a result, when the front ceiling cushioning material 12 is compressed by the product 2 due to dropping or the like as described above, the inner part 12a of the ceiling cushioning material 12 continues from the inner edge of the lower stepped portion 72 downward. It wraps around the part of the wall surface 61 (it becomes a part of the recess 74 in FIG. 7A). Therefore, when the top bottom cushioning material 12 is compressed due to dropping or the like, and the tip end portion of the joining flange 23 protrudes beyond the thickness of the top bottom cushioning material 12, the top bottom cushioning material 12 wraps around the front wall 61 portion below the lower stepped portion 72. Since the joining flange 23 is received by the inner portion 12a of the top bottom cushioning material 12 and contact with the front wall surface 61 is avoided, damage to the joining flange 23 can be prevented.

On the other hand, when the product 2 in the packaging state with the packaging material 1 falls to the front side, if the lower end portion or the upper end portion of the front plate 22 is strongly pressed against the front side cushioning material 13 over the entire width direction, the lower end of the front plate 22 The central portion of the portion or the upper end portion is not relatively rigid and may be deformed.
2 and 3, in the embodiment, the central portion of the front side cushioning material 13 constitutes a space 75 where the side cushioning material 13 is not provided, and the lower end portion of the front plate 22 in the product 2. Alternatively, contact with the central portion at the upper end is avoided. Therefore, even if the product 2 falls to the front side and the lower end portion or upper end portion of the front plate 22 is strongly pressed by the front side cushioning material 13, the lower end portion or the central portion of the upper end portion of the front plate 22 is Since it is in a free state without contact with the side cushioning material 13 and no load is applied, deformation of the center portion of the lower end portion or upper end portion of the front plate 22 can be prevented. On the other hand, since the front top bottom cushioning material 12 is extended to the position of the space 75 where the side cushioning material 13 is not provided in the central portion, the vertical load on the front plate 22 is applied to the top bottom surface. It can be absorbed by the cushioning material 12 to prevent the front plate 22 from being damaged.
As described above, the packaging material 1 can improve the protection performance of the front plate 22 and the joining flange 23 that are easily damaged by the product 2.

In addition, this invention is not limited only to the said embodiment, A various change is possible within the range of the summary of this invention.
For example, the top cushioning material 12 and the side cushioning material 13 are not limited to the number of divisions shown in the embodiment, and may be divided into an arbitrary number, or the side cushioning material 13 may be a single article.
Further, the upper stepped portion 71 and the lower stepped portion 72 can be provided at an arbitrary length at a required position of the side wall 6.
Further, the outer tray 11 may be provided with a water drain hole that can leak from the product 2 on the bottom wall 5 or the side wall 6.

1 Packaging material 2 Product (packaged item)
5 bottom wall 6 side wall 11 exterior tray 12 top cushioning material 13 side cushioning material 21 outer case 22 front plate 23 joint flange 24 pipe 61 front side wall 62 rear side wall 63 right side wall 64 left side wall 65 flange 71 upper stepped portion 72 lower stepped portion 73 Relief part 74 Recess 75 Space part

Claims (5)

A packaging material that has a front plate on the front surface of the outer case as a packaged object and that has a joining flange protruding from the outer periphery at the joint between the outer case and the front plate, and is separately stacked on the bottom surface and the top surface. Because
An exterior tray that integrally forms a bottom wall, a side wall surrounding the periphery of the bottom wall, and an upper and lower two-level step formed on the inner surface side of the side wall;
On the lower step portion of the outer tray, a top bottom cushioning material that is applied to the bottom surface of the package or the outer peripheral portion of the top surface is integrally provided,
On the upper step of the outer tray, a side cushioning material that is applied to the outer peripheral portion of the lower end of the package or the upper end of the side is provided integrally .
The top bottom cushioning material is a returnable packaging material that is harder than the side cushioning material. In the returnable packaging material according to claim 1,
The top cushioning material disposed on the front side of the packaged object is a returnable packaging material that is formed at a height that is longer than the protruding length of the joining flange of the packaged object. In the returnable packaging material according to claim 1 or 2,
A returnable packaging material that constitutes a relief portion in which the ceiling cushioning material is not provided at both ends of the ceiling cushioning material disposed on the front side of the packaging object in order to avoid contact with the joint flange of the packaging object. In the returnable packaging material according to any one of claims 1 to 3,
The side cushioning material disposed on the front side of the article to be packaged constitutes a space part in which the side cushioning material is not provided in the central part in order to avoid contact with the front plate of the article to be packaged.
The top cushioning material disposed on the front side of the article to be packaged is a returnable packaging material that is also disposed at the position of the space where no side cushioning material is provided in the center. In the returnable packaging material according to any one of claims 1 to 4,
Returnable packaging in which a recess recessed outward from the extension line of the joint flange of the packaged object is formed in the lower part of the side wall of the exterior tray located on the front side of the packaged object and continuing to the lower stepped part. Wood.

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