JP7698598B2 - Packaging materials - Google Patents

Description

This disclosure relates to packaging materials, brackets, and fasteners.

Packaging materials used for packing and transporting parts for automobiles and various machines have been known for some time. For example, the following Patent Document 1 discloses a packaging material for transporting large and heavy parts such as automobile transmissions. This packaging material is used to pack multiple parts that have a small diameter at one end and a large diameter at the other end, and is equipped with a first packaging member and a second packaging member (Patent Document 1, Abstract, Claim 1, paragraph 0008, etc.).

The first packaging member is a long member having a plurality of first recesses for holding one end of the packaged parts. The second packaging member is a long member having second recesses arranged on both sides of the first packaging member for holding the other end of the packaged parts. In this first packaging member, at least the first recesses located on the outside in the arrangement direction of the packaged parts among the plurality of first recesses are formed at an inclination angle with respect to a direction perpendicular to the longitudinal direction of the first packaging member.

With this configuration, the conventional packaging material can reduce the number of packaging materials and lower costs. In addition, the small-diameter end and the large-diameter end of the packaged parts can be arranged in an alternating inverted manner, and the packaged parts at both ends in the arrangement direction can be arranged in an inclined position. This reduces dead space and allows the packaged parts to be packed efficiently (Patent Document 1, paragraph 0010, etc.).

In addition, assembly cushioning materials have been proposed that are efficient in storage and can accommodate packaging objects of various shapes and sizes. For example, the assembly cushioning material described in the following Patent Document 2 is formed into the desired packaging shape by appropriately combining side plate members, end plate members, and partition plate members made only from sheet materials such as foamed polyethylene and foamed polypropylene.

This cushioning material for assembly has grooves on the sides of the side plate members and the end plate members, insertion holes on the side plate members at positions corresponding to the fitting holes of the bottom plate member, the partition plate is formed in a shape corresponding to the packaged object, and a protrusion corresponding to the insertion hole is provided on the end edge (Patent Document 2, Abstract, Claim 1, paragraph 0007, etc.). This conventional cushioning material for assembly makes it easy to realize cushioning packaging for various packaged objects (same document, paragraph 0013, etc.).

Utility Model Registration No. 3201210 Utility Model Registration No. 3205888

When transporting large, heavy items such as automobile transmissions, for example, multiple parts are packed in a packaging material such as that described in Patent Document 1 above, and placed on a metal cart. Each item packed in the packaging material and placed on the cart has a fastener such as a band or strap hung through a bracket provided on the cart, and is fixed to the cart together with the packaging material by the fastener.

The shape, size, or number of items packed and transported in packaging materials such as automobile parts may change each time due to changes in the model of the automobile, changes in the design of the parts, or changes in production plans. The conventional packaging material described in Patent Document 1 above is suitable for transporting large and heavy items, but the shape, size, and number of the first recesses and second recesses correspond to the shape, size, and number of the items to be packed.

Therefore, this conventional packaging material has room for improvement in that it cannot flexibly accommodate changes in the shape, size, or number of items to be packed. In addition, the conventional assembly cushioning material described in Patent Document 2 above can flexibly accommodate changes in the shape, size, or number of items to be packed, but due to its structure, it is not suitable for packaging large, heavy items.

In addition, when an item packed using the above-mentioned conventional packaging materials or assembled cushioning materials is placed on a cart and secured to the cart by hanging a fastener such as a belt that is passed through a bracket on the cart, the position of the bracket on the cart cannot be changed. Therefore, these conventional packaging materials or assembled cushioning materials have issues with the stability and fixation of the items on the cart when the shape, size, or number of the items being packed is changed.

The present disclosure provides a packaging material that can flexibly accommodate changes in the shape, size, or number of large and heavy items to be packaged, and that provides good stability and fixation of the packaged items, as well as brackets and fasteners that can be used with the packaging material.

One aspect of the present disclosure is a packaging material for packaging an item, comprising: a base member on which the item is placed; a support member that is detachably attached to the base member and supports the item; and a bracket that is fixed between the base member and the support member, the bracket having a connecting portion that connects one end of a fixture that is hung across the item, and an engaging portion that detachably engages the other end of the fixture.

According to the packaging material of the above aspect, an item can be placed on a base member, and the item can be supported by a support member attached to the base member. Therefore, cooperation between the base member and the support member allows for stable support of large and heavy items. In addition, by changing at least one of the shape, size, or arrangement of the support member that is detachably attached to the base member and supports the item, it is possible to flexibly accommodate changes in the shape, size, or number of items placed on the base member.

In addition, in the packaging material according to the above embodiment, when the support member is attached to the base member, one end of a fastener such as a band or strap is connected to the connecting portion of the bracket, and the bracket can be fixed between the base member and the support member. Then, the item to be packaged can be placed on the base member and supported by the support member, and a fastener having one end connected to the connecting portion of the bracket is hung over the item, and the other end of the fastener is engaged with the engaging portion of the bracket, thereby improving the stability and fixation of the item to be packaged.

Furthermore, by changing at least one of the shape, size, or arrangement of the support member attached to the base member in response to changes in the shape, size, or number of items placed on the base member, the position of the bracket fixed between the base member and the support member can be flexibly changed. Therefore, according to the above-mentioned one aspect of the present disclosure, it is possible to provide a packaging material that can flexibly accommodate changes in the shape, size, or number of large and heavy items to be packaged, and that provides good stability and fixation of the packaged items.

In the packaging material according to the above aspect of the present disclosure, the bracket may have a plurality of supported surfaces that face a plurality of supporting surfaces provided on the support member.

This configuration improves the stability and fixation of the item packed in the packaging material when the item is transported. More specifically, the item packed in the packaging material is transported, for example, on a dolly or loaded onto a trailer, cargo plane, or cargo ship. Due to the shaking and vibrations caused during transportation, forces in various directions act on the brackets of the packaging material that pack the item via the fasteners that are stretched across the item.

In this case, the multiple supported surfaces of the bracket facing different directions are supported by the multiple supporting surfaces of the support member that face each of the supported surfaces, improving the fixation and stability of the bracket fixed between the base member and the support member. Therefore, the fastener that is placed across the item when the item packaged in the packaging material is transported can be reliably supported and fixed by the bracket with excellent fixation and stability, improving the stability and fixation of the packaged item.

The packaging material according to the above aspect of the present disclosure may further include a fastener for fastening the base member and the support member.

With this configuration, the base member and the support member attached to the base member can be fastened together with a fastener. This improves the stability and fixation of the support member relative to the base member, and improves the stability and fixation of an item placed on the base member and supported by the support member when the item is packed in packaging material.

In the packaging material according to the above aspect of the present disclosure, the base member may have a positioning portion that holds the support member in a predetermined position.

With this configuration, when the support member is attached to the base member, the positioning portion can hold the support member in a predetermined position. This allows the support member to support a predetermined position of an item placed on the base member, improving the stability and fixation of the item packaged in the packaging material. In addition, the support member attached to the base member can be prevented from moving, improving the stability and fixation of the item supported by the support member. The positioning portion includes, for example, at least one of a recess that engages a part of the support member and a protrusion that restricts the movement of the support member.

The positioning portion of the base member may also be formed in a plurality of patterns corresponding to variations in the number of items placed on the base member. Such a plurality of patterns of the positioning portion includes a plurality of patterns corresponding to variations in the number of items to be packed, such as, for example, a four-item pattern when four items are placed on the base member, and a five-item pattern when five items are placed on the base member. This allows the arrangement of the support member to be easily changed in response to changes in the number of items placed on the base member.

In the packaging material according to the above aspect of the present disclosure, the base member and the support member may be foamed resin molded products.

This configuration makes it possible to reduce the weight of the base member and the support member, improve their cushioning properties, and improve their recyclability. In addition, when an item packed in packaging material is transported, the base member and the support member can absorb vibrations, improving the stability and fixation of the item placed on the base member and supported by the support member.

Another aspect of the present disclosure is a bracket that is fixed to a packaging material for packaging an item, the packaging material comprising a base member on which the item is placed, and a support member that is detachably attached to the base member and supports the item, the bracket being fixed between the base member and the support member and having a connecting portion that connects one end of a fastener that is spanned across the item, and an engaging portion that detachably engages the other end of the fastener.

When packaging an item with packaging material, the bracket according to the above embodiment can be fixed between a base member on which the item is placed and a support member that is detachably attached to the base member. One end of a fastener such as a band or strap can be connected to the connecting portion of the bracket, and the fastener can be hung on an item placed on the base member and supported by the support member, and the other end of the fastener can be engaged with the engaging portion of the bracket. In other words, the item can be fixed to the packaging material by the fastener that is hung on the item via the bracket fixed between the base member and the support member.

Furthermore, by changing at least one of the shape, size, or arrangement of the support member attached to the base member in response to changes in the shape, size, or number of items placed on the base member, the position of the bracket fixed between the base member and the support member can be flexibly changed. Therefore, according to the above-mentioned one aspect of the present disclosure, it is possible to provide a bracket that can flexibly accommodate changes in the shape, size, or number of large and heavy items to be packaged, and that provides good stability and fixation of the packaged items.

Another aspect of the present disclosure is a fastener for connecting a first foamed resin molded product and a second foamed resin molded product, comprising: a nut that is non-rotatably fitted into a recess provided in a first fastening portion of the first foamed resin molded product; and a bolt that is inserted into a second through hole that penetrates the second fastening portion of the second foamed resin molded product and a first through hole that penetrates the first fastening portion of the first foamed resin molded product and opens into the recess, and is screwed into the nut fitted into the recess, the nut having a bottomed screw hole that limits the amount of threading of the bolt to a predetermined amount of threading, and the bolt has a length that is the sum of the thickness when the first fastening portion and the second fastening portion are elastically compressed and the predetermined amount of threading.

According to the fastener according to the above aspect of the present disclosure, the fastening force for fastening the first fastening portion of the first foam molded product and the second fastening portion of the second foam molded product can be limited to a predetermined range, and the first fastening portion and the second fastening portion can be compressed within the elastic range to firmly fasten them while preventing damage. Therefore, for example, when the base member and the support member of the packaging material according to the above aspect of the present disclosure are foam molded resin products, the first fastening portion of the base member as the first foam molded resin product and the second fastening portion of the support member as the second foam molded resin product can be compressed within the elastic range to firmly fasten them while preventing damage.

Here, the fastening direction of the first foam molded product and the second foam molded product by the fastener according to the above embodiment is, for example, the depth direction of the first through hole penetrating the first fastening part and the second through hole penetrating the second fastening part, i.e., the axial direction of the bolt inserted into the first through hole and the second through hole. In this case, the nut that is non-rotatably fitted into the recess can be said to be the same non-circular nut that is fitted into a non-circular recess when viewed from the fastening direction. Note that non-circular shapes include, for example, ellipses, ovals, triangles, rectangles, other polygons, crosses, stars, or other irregular shapes.

In the fastener according to the above aspect of the present disclosure, the bolt may be provided integrally with a disk-shaped washer portion having a larger diameter than the head between the cylindrical portion having the threaded portion and the head.

With this configuration, when the first foam-molded product and the second foam-molded product are fastened together by the fastener according to the above-mentioned embodiment, the stress acting from the end face of the bolt head to the second fastening portion of the second foam-molded product can be alleviated by the washer portion, which has a larger area than the end face of the head. Therefore, when the first foam-molded product and the second foam-molded product are fastened together by the fastener according to the above-mentioned embodiment, damage to the second fastening portion of the second foam-molded product can be more reliably prevented.

According to the present disclosure, it is possible to provide a packaging material that can flexibly accommodate changes in the shape, size, or number of items to be packaged and has good stability and fixation of the items, as well as brackets and fasteners to be used with the packaging material.

FIG. 1 is a perspective view of one embodiment of a packaging material, bracket, and fastener according to the present disclosure. 2 is an enlarged perspective view showing an example of a fastener that is hung across an article to be packaged with the packaging material of FIG. 1 . FIG. 2 is a top view of a base member constituting the packaging material of FIG. 1 . 2 is a bottom view of a base member constituting the packaging material of FIG. 1 . 1. FIG. 4 is a plan view showing another arrangement pattern of the support members in the packaging material of FIG. FIG. 2 is a perspective view of a support member constituting the packaging material of FIG. 1, as viewed obliquely from above. 2 is a perspective view of a support member constituting the packaging material of FIG. 1, as viewed obliquely from below. FIG. 2 is a perspective view of a bracket constituting the packaging material of FIG. 1, as viewed obliquely from above and below; FIG. FIG. 2 is a perspective view of a fastener constituting the packaging material of FIG. 1 . FIG. 10 is a front view in cross section of the nut of the fastener of FIG.

Embodiments of the packaging material, bracket, and fastener according to the present disclosure will be described below with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of the packaging material, bracket, and fastener according to the present disclosure. FIG. 2 is an enlarged perspective view showing an example of a fastener S that is stretched across an item G to be packaged using the packaging material 100 of FIG. 1.

The packaging material 100 of this embodiment is used, for example, to pack a large and heavy item G, such as an automobile transmission. The packaging material 100 is used to pack the item G at the sender, such as a parts factory, and is transported from the sender to the destination, such as an automobile factory, with the item G packed in it, at which point it is unpacked and collected for repeated use.

One or more items G packed in the packaging material 100 are transported, for example, by being placed on a dolly or loaded onto a trailer, cargo plane, or cargo ship. The packaging material 100 supports and fixes the packed items G to ensure the stability of the items G during transportation, and protects the items G from shocks and vibrations acting on the items G during transportation. The packaging material 100 includes, for example, a base member 110, a support member 120, and a bracket 130. The packaging material 100 also includes, for example, a fastener 140 (see FIG. 9).

In the example shown in FIG. 1, the packaging material 100 includes one base member 110, four sets of support members 120, and four pairs of brackets 130. The number of support members 120 and the number of brackets 130 included in the packaging material 100 are not particularly limited. In other words, the packaging material 100 can include one or more support members 120 and one or more brackets 130 depending on the number of items G to be placed on one base member 110.

As shown in FIG. 2, when the item G is packed with the packaging material 100, the item G is placed on the base member 110 and supported by the support member 120 that is detachably attached to the base member 110. In this state, a fastener S such as a fastening band or a fastening strap is further hung over the item G from one end to the other end of the item G. As a result, the item G is fixed to the packaging material 100 by the fastener S. Details will be described later, but the bracket 130 fixed between the base member 110 and the support member 120 has a connecting portion 131 that connects one end of the fastener S that is hung over the item G, and an engaging portion 132 that detachably engages the other end of the fastener S.

Figures 3 and 4 are top and bottom views, respectively, of the base member 110 constituting the packaging material 100 of Figure 1. Figure 5 is a plan view showing another arrangement pattern of the support members 120 on the base member 110 of Figure 1.

The base member 110 is, for example, a foamed resin molded product. The material of the base member 110 can be, for example, PIOCELAN (registered trademark), which combines the properties of polystyrene and polyolefin, as well as polystyrene, polypropylene, polyethylene, polyethylene terephthalate, etc. The base member 110 has, for example, a rectangular plate shape and has an uneven upper surface. The length of each side of the base member 110 is, for example, 1 m or more, and the thickness of the base member 110 is, for example, 100 mm or less.

As shown in Figures 1 and 3, the base member 110 has, for example, a positioning portion 111 that holds the support member 120 in a predetermined position. More specifically, in this embodiment, the positioning portion 111 is a recess provided on the upper surface of the base member 110. Note that the positioning portion 111 is not limited to a recess, and may be a protrusion provided on the upper surface of the base member 110. The positioning portion 111 has a shape that fits a part of the support member 120, engages with a part of the support member 120, and holds the support member 120 in a predetermined position on the base member 110.

The positioning portion 111 includes, for example, a plurality of positioning portions 111A, 111B, 111C of different shapes. Each of the plurality of positioning portions 111A, 111B, 111C is, for example, a recess into which a portion of each of the plurality of support parts 121, 122, 123 of different shapes constituting the support member 120 is fitted, and there are portions where the positioning portions are arranged in different overlapping positions. Note that the number of positioning portions 111A, 111B, 111C of different shapes included in the positioning portion 111 can be changed according to the number of support parts 121, 122, 123 constituting the support member 120.

The positioning unit 111 includes, for example, a plurality of patterns corresponding to variations in the number of objects G placed on the base member 110. More specifically, the positioning unit 111 includes, for example, two patterns, a four-piece pattern when four objects G are placed on the base member 110 as shown in FIG. 1, and a five-piece pattern when five objects G are placed on the base member 110 as shown in FIG. 5. The positioning unit 111 may further include three or more patterns, such as a six-piece pattern.

As shown in FIG. 4, the base member 110 has a recess 112 for non-rotatably fitting a nut 141 (see FIG. 9) of a fastener 140 described below. The recess 112 is provided, for example, in a first fastening portion 113 of the base member 110 that is fastened by the fastener 140. Details will be described later, but the fastening direction of the fastener 140 that fastens the base member 110 and the support member 120 is the thickness direction of the base member 110, which is perpendicular to the paper surface of FIG. 4.

In this case, the recess 112 for fitting the nut 141 non-rotatably can be said to be a recess 112 of the same shape as the nut 141 for fitting the non-circular nut 141 when viewed from the fastening direction of the fastener 140. More specifically, the shape of the recess 112 is, for example, a rectangular parallelepiped shape for snugly fitting the rectangular parallelepiped nut 141 with a predetermined dimensional tolerance, and is rectangular when viewed from the fastening direction of the fastener 140.

The shape of the recesses 112 as viewed from the fastening direction of the fastener 140 can be any non-circular shape, such as an ellipse, an oval, a triangle, a square, another polygon, a cross, a star, or another irregular shape, to match the shape of the nut 141. Each of the multiple recesses 112 provided on the bottom surface of the base member 110 is provided at a position that overlaps with the mounting position of each of the multiple support members 120 attached to the upper surface of the base member 110 in the fastening direction of the fastener 140, for example.

The base member 110 also has a first through hole 114 through which a bolt 142 (see FIG. 9) of a fastener 140 that fastens the base member 110 and the support member 120 is inserted. Each first through hole 114, for example, passes through a first fastening portion 113 of the base member 110 and opens to the bottom surface of each recess 112 and a positioning portion 111 on the upper surface of the base member 110. The first fastening portion 113 of the base member 110 is a portion that is fastened to a second fastening portion 125 (see FIG. 5) of the support member 120 by a fastener 140 described later, for example.

As will be described in detail later, each support member 120 attached to the base member 110 has one or more second through holes 124 (see FIG. 5) that pass through a second fastening portion 125 that is fastened to a first fastening portion 113 of the base member 110. The first through holes 114 of the base member 110 are provided at positions corresponding to the second through holes 124 of each of the support members 120 that are arranged at the mounting position on the upper surface of the base member 110, and allow the bolts 142 of the fasteners 140 inserted into the second through holes 124 of each of the support members 120 to pass through.

That is, the recesses 112 and the first through holes 114 of the base member 110 are provided to correspond to the arrangement of the four patterns of support members 120 when four objects G are placed on the base member 110, as shown in FIG. 1, for example. At the same time, the recesses 112 and the first through holes 114 of the base member 110 are provided to correspond to the arrangement of the five patterns of support members 120 when five objects G are placed on the base member 110, as shown in FIG. 5, for example.

Figure 6 is a perspective view of the support member 120 constituting the packaging material 100 in Figure 1, seen from diagonally above. Figure 7 is a perspective view of the support member 120 constituting the packaging material 100 in Figure 1, seen from diagonally below. Figure 8 is a perspective view of the bracket 130 constituting the packaging material 100 in Figure 1, seen from diagonally above and below. Figure 9 is a perspective view of the fastener 140 constituting the packaging material 100 in Figure 1. Figure 10 is a front view showing a cross section of the nut 141 of the fastener 140 in Figure 9.

The support member 120 is, for example, a foamed resin molded product similar to the base member 110. The support member 120 has, for example, three support parts 121, 122, and 123 of different shapes. Each support member 120 may be composed of one support part, or may be composed of two or more support parts. As shown in FIG. 2, each support part 121, 122, and 123 has a support surface 121a, 122a, and 123a that supports the item G placed on the base member 110.

The first support part 121 has, for example, a concave support surface 121a on the upper surface, and is positioned below the front end of the item G placed on the base member 110. The support surface 121a of the first support part 121 has, for example, a shape that follows the outline of the lower part of the front end of the item G to be packed, and supports the front end of the large and heavy item G from below across the entire width of the item G.

The first support part 121 has, for example, countersunk portions 121b at both ends of the longitudinal direction of the support part 121, which is the width direction of the supported item G. A second through hole 124 is provided at the bottom of the countersunk portion 121b, through which the bolt 142 of the fastener 140 is inserted. The second through hole 124 passes through, for example, the second fastening portion 125 of the first support part 121, which is fastened to the first fastening portion 113 of the base member 110 by the fastener 140, and opens to the bottom surface of the countersunk portion 121b and the bottom surface of the first support part 121, respectively.

As will be described in detail later, as shown in FIG. 7, the first support part 121 has, for example, a plurality of support surfaces 121c that face a plurality of supported surfaces 135 of a bracket 130 that is fixed between the base member 110 and the first support part 121. The plurality of support surfaces 121c of the first support part 121 are provided, for example, as recesses 121d that engage the bracket 130.

The second support part 122, for example, like the first support part 121, has a concave support surface 122a on the upper surface, and is positioned below the rear end of the item G placed on the base member 110. The support surface 122a of the second support part 122 has a shape that follows the outline of the lower part of the rear end of the item G to be packed, and supports the rear end of the large and heavy item G from below across the entire width of the item G.

The second support part 122, like the first support part 121, has countersunk 122b at both ends of the longitudinal direction of the support part 122, which is the width direction of the supported item G. A second through hole 124 is provided at the bottom of the countersunk 122b, through which the bolt 142 of the fastener 140 is inserted. The second through hole 124 passes through, for example, the second fastening part 125 of the second support part 122, which is fastened to the first fastening part 113 of the base member 110 by the fastener 140, and opens to the bottom surface of the countersunk 122b and the bottom surface of the second support part 122, respectively.

As will be described in detail later, the second support part 122, like the first support part 121, has, for example, a plurality of support surfaces 122c that face a plurality of supported surfaces 135 of the bracket 130 fixed between the base member 110 and the second support part 122. For example, like the first support part 121, the plurality of support surfaces 122c of the support part 122 are provided as recesses 122d that engage the bracket 130.

The third support part 123, for example, like the first support part 121 and the second support part 122, has a concave support surface 123a on the upper surface, and is positioned below the upper right rear part of the item G placed on the base member 110. The support surface 123a of the third support part 123 has a shape that follows the outer shape of the upper right rear part of the item G to be packed, and supports the upper right rear part of a large and heavy item G from below and behind. The third support part 123 has a slender columnar shape extending vertically when attached to the horizontally arranged plate-like base member 110, for example.

That is, the third support part 123 is provided in a columnar shape to fill the vertical gap formed between the upper right rear part of the item G placed on the horizontally arranged base member 110 and the upper surface of the base member 110. The lower end of the third support part 123 has, for example, a plurality of protrusions 123b that engage with a recessed positioning part 111C provided on the upper surface of the base member 110. By engaging these plurality of protrusions 123b with the recessed positioning part 111C provided on the upper surface of the base member 110, the third support part 123 can be detachably attached to the base member 110 without using a fastener 140.

The bracket 130 has, for example, a bottom plate portion 133 and a main body portion 134 connected to one end of the bottom plate portion 133. The bottom plate portion 133 has, for example, a rectangular planar shape, and the main body portion 134 is connected to one end in the longitudinal direction. With this configuration, the bracket 130 has a roughly L-shape when viewed from the width direction, which is the short side direction of the bottom plate portion 133. The bracket 130 can be manufactured from a metal such as aluminum. The bracket 130 may also be a non-foamed resin molded product made of a resin such as polystyrene, polypropylene, polyethylene, or polyethylene terephthalate.

The main body 134 has, for example, a rectangular cylindrical columnar portion 134a extending in a direction perpendicular to the bottom plate portion 133, and an inclined portion 134b provided between the columnar portion 134a and the bottom plate portion 133. The aforementioned connecting portion 131 and engaging portion 132 are provided on the columnar portion 134a of the main body 134. As shown in FIG. 2, the connecting portion 131 connects one end of the fastener S that is hung across the article G, and the engaging portion 132 detachably engages the other end of the fastener S.

The connecting portion 131 is, for example, a pair of through holes provided on both sides of the columnar portion 134a in the width direction when the short side direction of the bottom plate portion 133 is the width direction of the columnar portion 134a. The pair of through holes constituting the connecting portion 131 have a common center line parallel to the width direction of the columnar portion 134a. As shown in FIG. 2, for example, the connecting portion 131 is fixed by inserting a bolt B or a pin through the width direction of the columnar portion 134a, and connects one end of the fixing device S via the bolt B or the pin.

When the longitudinal direction of the bottom plate portion 133 is the front-rear direction of the columnar portion 134a, the engagement portion 132 is, for example, a notch provided in the rear portion of the columnar portion 134a opposite to the front portion where the inclined portion 134b is provided. The engagement portion 132 is, for example, an edge portion of a notch provided in an arc shape at the top of the columnar portion 134a, where the rear portion of the columnar portion 134a is notched from the lower end to the upper end. As shown in FIG. 2, for example, the engagement portion 132 engages a hook H attached to the other end of the fixture S, one end of which is connected to the connecting portion 131, thereby detachably engaging the other end of the fixture S.

On the upper surface of the bottom plate portion 133, for example, a rectangular frame-shaped first convex portion 133a and a linear second convex portion 133b are provided. The linear second convex portion 133b is provided so as to cross the middle portion in the longitudinal direction of the rectangular frame-shaped first convex portion 133a in the short direction. On the upper surface of the bottom plate portion 133, the height in the protruding direction of the second convex portion 133b is higher than the height in the protruding direction of the first convex portion 133a. The bottom surface of the bottom plate portion 133 is a flat surface without any irregularities.

7, the first convex portion 133a and the second convex portion 133b on the upper surface of the bottom plate portion 133 engage with the groove portions 121d1, 122d1 provided in the recesses 121d, 122d of the first support part 121 or the second support part 122 constituting the support member 120. In this manner, when the bottom plate portion 133 engages with the recesses 121d, 122d of the first support part 121 or the second support part 122, respectively, the bottom surface of the bottom plate portion 133 is flush with the bottom surface of the first support part 121 or the second support part 122, for example, without any step.

When the direction perpendicular to the upper surface of the bottom plate portion 133 is taken as the height direction of the bracket 130, the inclined portion 134b of the main body portion 134 has an inclined surface 134b1 between the center in the height direction of the front part of the columnar portion 134a and the first convex portion 133a on the upper surface of the bottom plate portion 133. A rectangular recess 134b2 is formed in the inclined surface 134b1 of this inclined portion 134b. As shown in FIG. 7, the inclined portion 134b engages with the recesses 121d, 122d of the first support part 121 or the second support part 122 constituting the support member 120.

In this manner, when the inclined portion 134b of the main body 134 is engaged with the recesses 121d, 122d of the first support part 121 or the second support part 122, the protrusions 121d2, 122d2 provided on the recesses 121d, 122d are engaged with the recesses 134b2 of the inclined portion 134b. In this state, the front end of the columnar portion 134a of the main body 134 is engaged with the recesses 121d, 122d of the first support part 121 or the second support part 122, as shown in FIG. 7.

That is, the bracket 130 has a plurality of supported surfaces 135 that face the plurality of support surfaces 121c, 122c that define the recesses 121d, 122d when engaged with the recesses 121d, 122d of either the first support part 121 or the second support part 122 of the support member 120. The plurality of supported surfaces 135 include, for example, the upper surface and side surface of the bottom plate part 133, the outer surfaces of the first convex part 133a and the second convex part 133b, the side surface and front surface of the front end part of the columnar part 134a, the side surface and the inclined surface 134b1 of the inclined part 134b, and the bottom surface and inner surface of the recess 134b2, as shown in FIG.

The fastener 140 is a fastener 140 that connects the base member 110 and the support member 120. The fastener 140 includes a nut 141 and a bolt 142. The nut 141 is non-rotatably fitted into a recess 112 provided in the first fastening portion 113 on the bottom surface of the base member 110 shown in FIG. 4. The nut 141 has, for example, a rectangular parallelepiped shape that corresponds to the rectangular parallelepiped recess 112 of the base member 110.

The bolt 142 is inserted into a second through hole 124 that penetrates the second fastening portion 125 of each of the first support part 121 and the second support part 122 that constitute the support member 120. Furthermore, the bolt 142 is inserted into a first through hole 114 that penetrates the first fastening portion 113 of the base member 110 and opens into the recess 112, and is screwed into a nut 141 that is fitted into the recess 112.

As shown in FIG. 10, the nut 141 has a bottomed screw hole 141a that limits the amount of threading of the bolt 142 to a predetermined amount of threading SA. That is, the depth D of the bottomed screw hole 141a is, for example, equal to the predetermined amount of threading SA of the bolt 142. The bottomed screw hole 141a is provided, for example, in the center in the longitudinal direction of the rectangular parallelepiped nut 141. This increases the area of the side surface of the nut 141, and can alleviate the stress acting on the recess 112 of the base member 110 from the side surface of the nut 141 when the bolt 142 is screwed into the bottomed screw hole 141a of the nut 141.

The bolt 142 has a length L which is the sum of the thickness T when the first fastening portion 113 of the base member 110 and the first support part 121 or the second fastening portion 125 of the second support part 122 of the support member 120 are elastically compressed, and a predetermined screw-in amount SA of the bolt 142. In addition, the bolt 142 has a disk-shaped washer portion 142d which has a larger diameter than the head 142c, which is integrally provided between the cylindrical portion 142b having the threaded portion 142a and the head 142c.

The nut 141 and bolt 142 constituting the fastener 140 are non-foamed resin molded products made of resin such as polystyrene, polypropylene, polyethylene, or polyethylene terephthalate. The nut 141 and bolt 142 may also be made of metal, for example.

The following describes the functions of the packaging material 100, bracket 130, and fastener 140 of this embodiment.

As described above, the packaging material 100 of this embodiment is a packaging material 100 for packaging an item G. The packaging material 100 includes a base member 110 on which the item G is placed, a support member 120 that is detachably attached to the base member 110 and supports the item G, and a bracket 130 that is fixed between the base member 110 and the support member 120. The bracket 130 has a connecting portion 131 that connects one end of a fixing device S that is hung across the item G, and an engaging portion 132 that detachably engages the other end of the fixing device S.

With this configuration, the packaging material 100 of this embodiment can place an item G on the base member 110, and further support the item G with the support member 120 attached to the base member 110. Therefore, the base member 110 and the support member 120 work together to stably support a large and heavy item G. In addition, by changing at least one of the shape, size, and arrangement of the support member 120 that is detachably attached to the base member 110 and supports the item G, it is possible to flexibly respond to changes in the shape, size, or number of items G placed on the base member 110.

In addition, when the support member 120 is attached to the base member 110, the packaging material 100 of this embodiment can fix the bracket 130 between the base members 110 and 120 with one end of a fastener S such as a band or strap connected to the connecting portion 131 of the bracket 130. Then, the item G to be packed is placed on the base member 110 and supported by the support member 120, and the fastener S, one end of which is connected to the connecting portion 131 of the bracket 130, is hung over the item, and the other end of the fastener S is engaged with the engaging portion 132 of the bracket 130, thereby improving the stability and fixation of the item G to be packed.

Furthermore, as described above, the packaging material 100 of this embodiment can flexibly change the position of the bracket 130 fixed between the base member 110 and the support member 120 by changing at least one of the shape, size, and arrangement of the support member 120 attached to the base member 110. Therefore, according to this embodiment, it is possible to provide a packaging material 100 that can flexibly accommodate changes in the shape, size, or number of large and heavy items G to be packed, and that provides good stability and fixation of the items G to be packed.

In addition, in the packaging material 100 of this embodiment, the bracket 130 has a plurality of supported surfaces 135 that face the plurality of support surfaces 121c, 122c provided on the support member 120, as described above.

This configuration can improve the stability and fixation of the item G packed in the packaging material 100 when the item G is transported. More specifically, the item G packed in the packaging material 100 is transported, for example, by being placed on a dolly or loaded onto a trailer, cargo plane, or cargo ship. Due to the shaking and vibrations during transportation, forces in various directions act on the bracket 130 of the packaging material 100 that packs the item G via the fixing device S that is stretched across the item G.

At this time, the multiple supported surfaces 135 of the bracket 130 facing different directions are supported by the multiple supporting surfaces 121c, 122c of the supporting member 120 that face each of the supported surfaces 135, improving the fixation and stability of the bracket 130 fixed between the base member 110 and the supporting member 120. Therefore, the fastener S that is hung on the item G when the item packed in the packaging material 100 is transported can be reliably supported and fixed by the bracket 130, which has excellent fixation and stability, improving the stability and fixation of the packaged item G.

In addition, the packaging material 100 of this embodiment further includes a fastener 140 that fastens the base member 110 and the support member 120.

With this configuration, the packaging material 100 of this embodiment can fasten the base member 110 and the support member 120 attached to the base member 110 with the fastener 140. This improves the stability and fixation of the support member 120 to the base member 110, and improves the stability and fixation of the item G placed on the base member 110 and supported by the support member 120 when the item G is packed with the packaging material 100.

In addition, in the packaging material 100 of this embodiment, the base member 110 has a positioning portion 111 that holds the support member 120 in a predetermined position.

With this configuration, when the support member 120 is attached to the base member 110, the support member 120 can be held in a predetermined position by the positioning portion 111. This allows the support member 120 to support a predetermined position of the item G placed on the base member 110, improving the stability and fixation of the item G packaged in the packaging material 100. In addition, the support member 120 attached to the base member 110 can be prevented from moving, improving the stability and fixation of the item G supported by the support member 120.

In addition, in the packaging material 100 of this embodiment, the base member 110 and the support member 120 are foamed resin molded products.

This configuration allows the base member 110 and the support member 120 to be lighter, have improved cushioning properties, and be more recyclable. In addition, when the item G packed in the packaging material 100 is transported, the base member 110 and the support member 120 can absorb vibrations, improving the stability and fixation of the item G placed on the base member 110 and supported by the support member 120.

Conventional packaging materials stabilize the packaged items by, for example, placing the packaging material containing the packaged items on a cart, hanging fasteners such as bands or straps on the packaging material via brackets attached to the cart, and fixing the packaging material to the cart with the fasteners. In this case, the position of the brackets attached to the cart cannot be changed. Therefore, conventional packaging materials have issues with the stability and fixation of the items on the cart when the shape, size, or number of the items to be packaged is changed.

In contrast, the bracket 130 of this embodiment is fixed to a packaging material 100 for packaging an item G. As described above, the packaging material 100 includes a base member 110 on which the item G is placed, and a support member 120 that is detachably attached to the base member 110 and supports the item G. The bracket 130 is fixed between the base member 110 and the support member 120, and has a connecting portion 131 that connects one end of the item G that is spanned across the item G, and an engaging portion 132 that detachably engages the other end of the fastener S.

With this configuration, the bracket 130 of this embodiment can be fixed between the base member 110 on which the item G is placed and the support member 120 that is detachably attached to the base member 110 when the item G is packaged with the packaging material 100. Then, one end of a fastener S such as a band or strap can be connected to the connecting portion 131 of the bracket 130, and the fastener S can be hung on the item G placed on the base member 110 and supported by the support member 120, and the other end of the fastener S can be engaged with the engaging portion 132 of the bracket 130. In other words, the item G can be fixed to the packaging material 100 by the fastener S that is hung on the item G via the bracket 130 fixed between the base member 110 and the support member 120.

Furthermore, the bracket 130 of this embodiment can flexibly change the position of the bracket 130 by changing at least one of the shape, size, or arrangement of the support member 120 attached to the base member 110 in response to changes in the shape, size, or number of the items G placed on the base member 110. Therefore, according to this embodiment, it is possible to provide a bracket 130 that can flexibly accommodate changes in the shape, size, or number of large and heavy items G to be packed, and that provides good stability and fixation of the packed items G.

In addition, in the packaging material 100 of this embodiment, if the support member 120 of the foamed resin molded product is fastened to the base member 110 of the foamed resin molded product with normal fasteners such as bolts and nuts, the fastening force of the fasteners may be excessive, which may damage the base member 110 and the support member 120. In addition, if the fastening force of normal fasteners is insufficient to avoid damage to the base member 110 and the support member 120, the base member 110 and the support member 120 cannot be firmly fastened together, and stability may be compromised.

In contrast, the fastener 140 of this embodiment is a fastener 140 that connects the base member 110 as the first foamed resin molded product and the support member 120 as the second foamed resin molded product. The fastener 140 includes a nut 141 and a bolt 142. The nut 141 is non-rotatably fitted into the recess 112 provided in the first fastening portion 113 of the first foamed resin molded product. The bolt 142 is inserted into the second through hole 124 that penetrates the second fastening portion 125 of the second foamed resin molded product, and is inserted into the first through hole 114 that penetrates the first fastening portion 113 of the first foamed resin molded product and opens into the recess 112, and is screwed into the nut 141 that is fitted into the recess 112. The nut 141 has a bottomed screw hole 141a that limits the amount of screwing of the bolt 142 to a predetermined screwing amount SA. The bolt 142 has a length L that is the sum of the thickness T when the first fastening portion 113 and the second fastening portion 125 are elastically compressed and the predetermined screw-in amount SA.

The fastener 140 of this embodiment can limit the fastening force for fastening the first fastening portion 113 of the base member 110 as the first foam molded product and the second fastening portion 125 of the support member 120 as the second foam molded product to a predetermined range. Therefore, the fastener 140 of this embodiment can compress the first fastening portion 113 of the base member 110 as the first foam molded product and the second fastening portion 125 of the support member 120 as the second foam molded product within the elastic range to firmly fasten them while preventing damage.

In the fastener 140 of this embodiment, the bolt 142 has a disk-shaped washer portion 142d that is integrally provided between the cylindrical portion 142b having the threaded portion 142a and the head portion 142c and has a larger diameter than the head portion 142c.

With this configuration, when the fastener 140 of this embodiment fastens the base member 110 as the first foam molded product and the support member 120 as the second foam molded product, the stress acting from the end face of the head 142c of the bolt 142 to the second fastening portion 125 of the support member 120 can be alleviated by the washer portion 142d, which has a larger area than the end face of the head 142c. Therefore, when the base member 110 and the support member 120 are fastened according to this embodiment, damage to the second fastening portion 125 of the support member 120 can be more reliably prevented.

As described above, according to this embodiment, it is possible to flexibly respond to changes in the shape, size, or number of the items G to be packed, and it is possible to provide a packaging material 100 that has good stability and fixation of the items G, and a bracket 130 and a fastener 140 used with the packaging material 100.

Although the embodiments of the packaging material, bracket, and fastener according to the present disclosure have been described in detail above using the drawings, the specific configuration is not limited to this embodiment, and even if there are design changes and the like within the scope of the gist of this disclosure, they are included in this disclosure. For example, the packaging material may include a fixture that is hung across the item.

100 Packaging material (first foamed resin molding)
110 Base member (second foamed resin molded product)
111 Positioning portion 112 Recess 113 First fastening portion 114 First through hole 120 Support member 121c Support surface 122c Support surface 124 Second through hole 125 Second fastening portion 130 Bracket 131 Connection portion 132 Engagement portion 135 Supported surface 140 Fastener 141 Nut 141a Bottomed screw hole 142 Bolt 142a Threaded portion 142b Cylindrical portion 142c Head 142d Washer portion G Article L Length S Fixture SA Predetermined screw-in amount T Thickness

Claims (5)

A packaging material for packaging an item, comprising:
a base member on which the article is placed, a support member detachably attached to the base member to support the article, and a bracket fixed between the base member and the support member,
The packaging material is characterized in that the bracket has a connecting portion for connecting one end of a fastener that is hung across the article, and an engaging portion for detachably engaging the other end of the fastener. The packaging material according to claim 1, characterized in that the bracket has multiple supported surfaces that face multiple supporting surfaces provided on the support member. The packaging material according to claim 1, further comprising a fastener for fastening the base member and the support member. The packaging material according to claim 1, characterized in that the base member has a positioning portion that holds the support member in a predetermined position. The packaging material according to claim 1, characterized in that the base member and the support member are foamed resin molded products.

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