JP7393068B1 - transport container - Google Patents

Abstract

An object of the present invention is to provide a transportation container in which a plastic stage and a molded container are connected with a single member. SOLUTION: A fastener 30 has a large number of pins 32 and hooks 33 arranged in a row at equal pitches and protrudes, and a presser part 35 protrudes in parallel with the pins 32 and hooks 33. The plastic cardboard (plastic cardboard) has one side where the hollow parts lined up in horizontal rows are exposed as the mounting side to which the fastener 30 is attached, and an opening on the inside of the mounting side where the enlarged part 34 of the hook 33 of the fastener 30 is exposed. A pair of mounting foundations are provided. A gripped structure is formed on a pair of parallel sides of the molded container 30, and the gripped structure is provided with a flange portion that is sandwiched between the holding portion 35 of the fastener 30 and the plastic step. There is. [Selection diagram] Figure 1

Description

The present invention relates to a transportation container assembled using a resin receiving material and plastic cardboard (hereinafter referred to as plastic cardboard).

In transportation containers for transporting products, such as automobile parts, between factories, a receiving material is placed on the main plastic stage to prevent the products mounted thereon from being damaged or deformed.

To connect the plastic stage and the receiving material, there are two methods: using adhesive tape, and using fixing tools such as rivets. When adhesive tape is used, because it is fixed with adhesive, the transportation container after use cannot be recycled and is disposed of as industrial waste. On the other hand, a recyclable fixture has been proposed that can be disassembled after use and used repeatedly. For example, Patent Document 1 discloses a rivet that includes a core material and a sleeve, one of which is placed on the front side of a plate material, and the other is placed above the plate material, and the rivet is fastened by inserting the core material into the sleeve. There is. Patent Document 2 discloses that, for two plates each having an opening, a first member is inserted into the opening from one side of the plate, and a second member is inserted from the other side of the plate, so that the plates are connected to each other. A technique for concluding a contract is disclosed.

Patent Document 3 discloses a partition structure in which a plastic stage used as a partition is fixed to a substrate, and a connecting tool that connects the plastic stage using a hollow part thereof is disclosed.

JP2018-31422A Patent No. 7007767 JP2022-97136A

The fixing devices of Patent Documents 1 and 2 have a structure in which the core material/sleeve or the first member/second member are connected and fastened, so two types of members are required for use or recycling. need to be managed separately.

In order to use these conventional fixtures, a relatively large joint area must be prepared on both the plastic stage side and the molded container side, which limits the number and arrangement of stored products. In addition, if the part corresponding to the so-called claw that fastens these is damaged, the fixing part will disassemble, and both the core material/sleeve or the first member/second member will fall off, and the plastic step that is fastening it will fall off. There is also a risk that the receiving material may fall off at the same time.

Furthermore, in these techniques, in order to attach the fixture, it is necessary to provide a relatively large opening on the plastic stage side, which requires drilling. Moreover, there is also a fear that burrs may occur at that time.

The present invention was made in view of the problems of the conventional fixtures, and an object of the present invention is to provide a transport container in which a plastic stage and a molded container are connected with a single member.

That is, the transportation container of the present invention includes a plastic corrugated board in which cavities arranged in horizontal rows are formed by connecting the spaces between the upper and lower liners with rib pillars;
A molded container having a pair of parallel opposing sides in a plan view and shaped to match the product to be stored;
comprising a fastener that fastens the plastic cardboard and the molded container,
The fastener has a plurality of pins arranged at regular intervals along the long side of the band-shaped base and a hook having an enlarged portion at the front end and protrudes in a line, and parallel to the arrangement of the pins and hooks, A holding portion is provided to protrude in the same direction as the pin and hook,
The plastic corrugated board has one side where the horizontal rows of cavities are exposed as a mounting edge on which the fastener is attached, and a mounting base provided with an opening through which a large portion of the hook of the fastener is exposed at a location inside the mounting edge. , a pair of mounting sides are provided so that they are parallel;
In the molded container, grasped structures are formed on each of the pair of side parts, and the grasped structures are provided with a flange part that is sandwiched between the holding part of the fastener and the plastic cardboard. It is characterized by

In the transportation container of the present invention, the fastener is one member, and there is no need to separately manage two types of members as in the past. Therefore, it is easy to manage whether it is used or recycled. In addition, since the fasteners are inserted into the hollow part of the plastic shelf, only the holding parts of the fasteners are exposed when viewed from the top of the transport container, giving greater flexibility in the number and placement of stored products. is increasing.

It is a figure which shows the fastener used for a transportation container, FIG. 1A is a perspective view, and FIG. 1B is a six-sided view. 2A is a diagram showing a plastic stage and a molded container, FIG. 2A shows a plastic stage having a mounting base, and FIG. 2B shows a molded container having a gripped structure. It is a figure explaining how a fastener is attached to the attachment foundation of a plastic stage. It is a figure explaining how a fastener is attached to the attachment foundation of a plastic stage. It is a figure explaining how a fastener is attached to the attachment foundation of a plastic stage. It is a figure explaining how a fastener is attached to the attachment foundation of a plastic stage. It is a figure explaining how a fastener is attached to the attachment foundation of a plastic stage.

Embodiments of the transportation container according to the present invention will be described below based on the drawings.
The transportation container 100 (FIGS. 4B, 6B, and 7B) includes a plastic stage 10 (FIGS. 2A, 3), a molded container 20 (FIG. 2B), and a fastener 30 that fastens the plastic stage 10 and the molded container 20. (Figure 1).

Referring to FIG. 3, the plastic board 10 is generally a plastic corrugated board in which the space between two liners 10a and 10b made of synthetic resin such as polyethylene or polypropylene is connected by a column of ribs 10c made of the same material. The upper and lower liners 10a, 10b and the two adjacent ribs 10c form a cavity 10d having a rectangular (or square) cross-sectional shape, and the cavities 10d are arranged in horizontal rows. The plastic stage 10 as a component of this embodiment is further cut in a predetermined manner to form a mounting base 11, as will be described later. The molded container 20 is a molded member made of resin, and is a molded product by injection molding of resin, a molded product by vacuum molding, or a molded product using a combination of injection molding and vacuum forming (see Patent No. 7215795). As will be described later, a specific gripped structure 21 is molded on the periphery. The fastener 30 is an integrally molded product made of resin.

First, the fastener 30 will be explained. FIG. 1 is a diagram showing a fastener 30, with FIG. 1A being a perspective view and FIG. 1B being a six-sided view. The base portion 31 has a strip shape having a length direction in the y direction and a surface extending in the xy directions in the three-dimensional coordinates x, y, and z shown in the figure. A large number of pins 32 and hooks 33 are arranged in a line along one long side 31a of the base 31 at a pitch interval a in the y direction. The pin 32 and hook 33 protrude in the z direction. In this embodiment, in a row of pins 32 and hooks 33, a total of four hooks 33 are provided at three locations at both ends and in the center, and two pins 32 are provided between the hooks 33. There is. Note that this arrangement may be in any combination.

The pitch interval a is equal to an integral multiple of the pitch interval b (see FIG. 3) of the ribs 10c of the plastic stage 10. Further, the pin 32 and the hook 33 can each be inserted into one of the cavities 10d of the plastic stage 10.

The pin 32 is preferably a cylinder or a cylinder, or the cross section may be a polygon including a triangle, a star shape, or a combination of an arc and a straight line. It is desirable that the tip 32a of the pin 32 has a conical shape so that it can be easily inserted into the cavity 10d. In this embodiment, the pin 32 is a solid cylinder, and the diameter d of the cross section is preferably the same as or slightly larger than one side of the cross-sectional shape of the cavity 10d. If the diameter d of the pin 32 is larger than one side of the cross-sectional shape of the cavity 10d, when the pin 32 is inserted, the shapes of the upper and lower liners 10a, 10b and the adjacent ribs 10c forming the cavity 10d are deformed. , it becomes difficult to pull out due to the elastic force.

The hook 33 has a root 33a that is the same size or slightly smaller than the cross-sectional size of the cavity 10d, and tapers toward a tip 33b. The distal end 33b has an enlarged portion 34 extending from the base 31 to the root 33a in the x direction. The ampullae 34 and the base 31 are separated by a distance h.

Parallel to the row of pins 32 and hooks 33, a holding portion 35 having a length in the y direction is provided so as to protrude in the z direction, which is the same direction as the pins and hooks. The holding portion 35 has a holding surface 35a extending in the yz direction on the side facing the pin 32 and the hook 33. The holding portion 35 has a length t as a width in the y direction and a length s as a width in the z direction. The holding surface 35a is separated by the distance e between the pin and the hook.

On the opposite side of the holding surface 35a, a large number of ribs 36 are provided between the base 31 and the holding part 35 in order to support the holding part 35.

Next, the plastic stage 10 will be explained. The plastic stage 10 used in this embodiment has been subjected to a predetermined cutting process to form a mounting base 11. A pair of mounting bases 11 fix one molded container 20 to the plastic stage 10. The mounting base 11 has one side where the side-by-side hollow parts 10d of the plastic stage 10 are exposed as a mounting side to which the fastener 30 is attached, and an opening where the large part of the hook 33 of the fastener 30 is exposed at a location inside the mounting side. 13a, 13c, and 13d (described later) are provided. The mounting base 11 has various forms, and the optimal mounting bases 11a, 11b, and 11c are selected to form a pair. A pair of mounting foundations of the same form may be formed, or mounting foundations of other forms may be combined. In this specification, three mounting foundations 11a, 11b, 11c will be described. Other forms are also included in the invention without departing from the invention.

In FIG. 2A, a rectangular plastic stage 10 is shown. The mounting base 11a is used when attaching the fastener 30 using one side of the plastic stage 10 as the mounting side 12. A predetermined cutting process is performed on the inside of the mounting side 12 of the plastic stage 10. In the predetermined cutting process, an opening 13a is provided inside the mounting side 12 by a distance h. The opening 13a has a cut side 14a parallel to the mounting side 12. The length of the cut side 14a is longer than the length that connects the ends of the hooks 33 that are farthest apart from each other in a row on the base 31 in which a large number of pins 32 and hooks 33 are arranged in a row. The opening 13a has a cut side 14b extending in the depth direction from both ends of the cut side 14a. The cut side 14b only needs to have a length equal to or longer than the length of the enlarged portion of the fastener 30 in the z direction.

The opening 13a may have a closed loop shape in which the plastic step 10 is partially cut out. The opening 13a in FIG. 2A is cut out in a rectangular shape. Another form of the opening 13a is that for the opposite side 14c of the cut side 14a, only one of the two liners 10a and 10b of the plastic stage is left uncut, and the cut part can be folded back. It may be a form.

The mounting base 11b is a mounting base 11 provided inside the plastic step. The mounting base 11b is composed of two openings 13a and 13b. The opening 13b is an opening for securing a working space for attaching the fastener 30 to the plastic stage 10. The opening 13b has an attachment side 16a, one side of which is cut to a length m that is equal to but longer than the length k of the fastener 30 in the y direction (FIG. 1B). A fastener 30 is attached to this attachment side 16a. The opening 13b has a cut side 16b having a length n longer than the length u of the fastener 30 in the z direction (FIG. 1B) in a direction perpendicular to both ends of the cut side 16a. On the opposite side 16c of the mounting side 16a, only one liner 10a of the two liners 10a and 10b of the plastic stage is left uncut, forming a fold line of the lid part 16d that closes the opening 13b. The lid portion 16d is folded back at the opposite side 16c. The length p of the lid portion 16d from the opposite side 16c to the tip is as short as the thickness of the base portion 31 of the fastener 30. Note that the opposite side 16c may be cut off to form a cut-out opening.

The opening 13c is substantially the same as the opening 13a. The difference is that a cut edge 15a parallel to the attachment edge 16a of the opening 13b is provided at a distance h inward from the attachment edge 16a. The other details are the same, so the explanation will be omitted. Assuming that the mounting bases 11a and 11b are a pair of mounting bases 11 for attaching one molded container 20 to the plastic stage 10, the mounting sides 12 and 16a are parallel, and one molded container 20 is fixed.

FIG. 2B shows a molded container 20. FIG. In the molded container 20, gripped structures 21a and 21b are respectively molded on a pair of side parts 20a and 20a that face each other in parallel in a plan view. In this embodiment, the molded container 20 has a rectangular shape in plan view. The portions other than the gripped structures 21a and 21b are shaped to match the product to be accommodated. The distance between the sides 20a, 20a is equal to the distance q between the mounting sides of the pair of mounting foundations 11.

The gripped structure 21a on the right side has a flange portion 22 sandwiched between the holding portion 35 of the fastener 30 and the plastic stage 10, and a pair of baffle walls 23. The left and right sides of the flange portion 22 are sandwiched by baffle walls 23 standing upright. The distance between the pair of baffle walls 23 is equal to or slightly longer than the length t (FIG. 1A) of the holding portion 35.

The flange portion 22 is a horizontal plate-shaped portion around the molded container 20 in a side view. The ends of the flange portion 22 are side portions 20a and 20b. When the molded container 20 is created by vacuum forming, a non-formed portion existing around the vacuum formed convex portion can be utilized. The flange portion 22 is sandwiched between the holding portion 35 and the plastic stage 10, and due to its gripping force, it is difficult to move in the y direction as well as in the x direction. Although the baffle wall 23 is not necessarily required, the baffle wall 23 restricts the movement of the presser portion 35 in the y direction and prevents the fastener 30 from being largely displaced.

In FIG. 2B, the two gripped structures 21a on the right side of the molded container 20 are each provided with one flange portion 22 for one holding portion 35, and left and right baffle walls 23 sandwiching the flange portion 22. On the other hand, in the gripped structure 21b on the left side, a flange portion 22 and left and right baffle walls 23 are provided for the two holding portions 35. In the grasped structure 21b, the distance between the left and right baffle walls 23 is equal to or slightly longer than the sum of the length t of the two holding portions 35 and the distance between the holding portions 35.

FIG. 3 is a diagram illustrating how the fastener 30 is attached to the mounting base 11a. The pins 32 and hooks 33 of the fastener 30 are aligned in a row toward the attachment side 12 and opposed to the row-shaped cavity 10d (FIG. 3A). Insert the pin 32 and hook 33 into the cavity 10d (FIG. 3B). At this time, the enlarged portion 34 of the hook 33 passes through the cavity 10d and enters the opening 13a. The enlarged portion 34 protrudes in the x direction with respect to the base 33a, and thus protrudes above the liner 10a of the plastic stage 10 (FIG. 3C). The flange portion 22 of the molded container 20 is inserted together with the plastic stage 10 into a gap defined by the distance e between the pin 32 or hook 33 and the pressing surface 35a. Since the enlarged portion 34 protrudes upward, the fastener 30 cannot be pulled out in the z direction. Furthermore, the pins 32 suppress movement in the x and y directions.

Although FIG. 3 shows the mounting foundation 11a, the same applies to the mounting foundations 11b and 11c described later.

FIG. 4 shows an example in which a transport container 100 is configured by a plastic stage 10, a molded container 20, and a fastener 30. In the figure, the plastic stage 10 has a rectangular shape, and mounting bases 11a are provided on the left and right sides, and the left and right sides are the mounting sides 12. Furthermore, gripped structures 21b are formed on the left and right sides of the molded container 20. The molded container 20 has a large number of trays 24 formed by vacuum forming (FIG. 4A). The molded container 20 mounted on the plastic stage 10 is fixed by fasteners 30 from the left and right sides (FIG. 4B). FIG. 4C is a view of the opening 13a viewed from the back side of the plastic stage 10. The enlarged portion 34 at the tip of the hook 33 protrudes toward the molded container 20 side and does not protrude to the back surface of the plastic stage 10 (FIG. 4C). This prevents the fastener 30 from coming off due to the enlarged portion 34 getting caught on something.

5 and 6 show a case where the molded container 20 is fixed at a midway point on the surface of the plastic stage 10. The plastic step 10 has a rectangular shape, and is provided with a mounting base 11a on the left and a mounting base 11b in the center (FIG. 5A). In addition, gripped structures 21a are formed on the left and right sides of the molded container 20 (FIG. 5B). In the mounting base 11b, the lid portion 16d is opened, and the fastener 30 is inserted into a position facing the mounting side 16a using the opening 13b. The molded container 20 is fixed to the plastic stage 10 using the fastener 30 (FIG. 6A). The opening 13b is closed by the lid portion 16d, making the surface flush with the surface of the plastic stage 10 (FIG. 6B).

FIG. 7 shows an example of the mounting foundation 11c provided on the plastic stage 10. The plastic stage 10 is cut into a straight line, leaving only one liner 10a or 10b, and is three-dimensionally bent into a step-like shape. The mounting base 11c is provided at a mountain-shaped bent portion of the plastic stage 10. The mounting sides 17a and 17b of the mounting base 11c are folded lines cut straight, leaving only the lower liner 10b. The opening 13d is the same as the opening 13a (FIG. 7A). The fasteners 30 are inserted into the attachment sides 17a and 17b facing each other to create the transportation container 100 (FIG. 7B).

As described above, according to this embodiment, the mounting bases 11, 11a, 11b, 11c and the grasped structures 21, 21a, 21b must be provided on the plastic stage 10 and molded container 20 sides, respectively. This can be added without increasing the number of steps in the original process of cutting or molding the stage 10 and the molded container 20, and does not impose a burden on the work. On the other hand, the fastener 30 is one member, and there is no need to separately manage two types of members as in the past. Therefore, it is easy to manage whether it is used or recycled. Further, even if damage occurs in some parts, in the worst case, the damaged pieces will simply fall off, and it is possible to avoid falling off of the fastener 30 main body and the plastic stage 10 and molded container 20. Furthermore, in order to attach the fastener 30, there is no need to provide a relatively large opening on the plastic stage 10 side, and there is little risk of burrs occurring. Since the fastener 30 is structured to be inserted into the hollow part 10d of the plastic shelf 10, only the holding part 35 of the fastener 30 is exposed in a plan view of the transport container 100, and the product is inserted into the container. Increased flexibility in number and placement.

100 Transport container 10 Plastic stage 10a, 10b Liner 10c Rib 10d Cavity 11, 11a, 11b, 11c Mounting base 12, 16a, 17a, 17b Mounting sides 13a, 13b, 13c, 13d Opening 14a, 14b, 15a, 16b Cutting side 14c, 16c Opposite sides 16d Lid 20 Molded containers 20a, 20b Sides 21, 21a, 21b Grasped structure 22 Flange 23 Baffle wall 24 Dish 30 Fastener 31 Base 31a Long side 32 Pin 32a Tip 33 Hook 33a Root 33b Tip 34 Enlarged portion 35 Holding portion 35a Holding surface 36 Rib

Claims (5)

A plastic corrugated board with cavities arranged in horizontal rows formed by connecting the spaces between the upper and lower liners with rib pillars,
A molded container having a pair of parallel opposing sides in a plan view and shaped to match the product to be stored;
comprising a fastener that fastens the plastic cardboard and the molded container,
The fastener has a plurality of pins arranged at regular intervals along the long side of the band-shaped base and a hook having an enlarged portion at the front end and protrudes in a line, and parallel to the arrangement of the pins and hooks, A holding portion is provided to protrude in the same direction as the pin and hook,
The plastic corrugated board has one side where the horizontal rows of cavities are exposed as a mounting edge on which the fastener is attached, and a mounting base provided with an opening through which a large portion of the hook of the fastener is exposed at a location inside the mounting edge. , a pair of mounting sides are provided so that they are parallel;
In the molded container, grasped structures are formed on each of the pair of side parts, and the grasped structures are provided with a flange part that is sandwiched between the holding part of the fastener and the plastic cardboard. A transportation container characterized by: 2. The transportation container according to claim 1, wherein the gripped structure includes baffle walls on both sides of the flange portion, with the flange portion interposed therebetween. 2. The transport container according to claim 1, wherein at least one of the pair of mounting bases has an opening formed in the middle of the surface of the plastic cardboard, and one side of the opening is the mounting side. Transport container. 4. The transport container according to claim 3, wherein the opening has a fold line cut on the opposite side of the mounting side leaving one liner, and a lid portion is formed to close the opening. Characteristic transport container. 2. The transportation container according to claim 1, wherein at least one side of the plastic corrugated cardboard where the rows of cavities are exposed is a fold line cut with one liner remaining.