The present invention relates to a tray and a packing apparatus.
A packing apparatus disclosed in PTL 1 described below includes a tray (2A). The tray (2A) is a laminate formed of plate bodies (21A, 22A, 23A, and 24A) made of cardboard sheets. The plate bodies (21A, 22A, 23A, and 24A) are bonded together by a bonding material.
[PTL 1] Japanese Patent Application Publication No. H09-131569
The feature in PTL 1 has the following problems when logistics transportation and freight handling are carried out. When the bonding between the plate bodies (21A, 22A, 23A, and 24A) is weak, there is a fear that bonding sections may peel apart from each other. In particular, there is a fear of strength poverty when objects to be packed are heavy products. There is a fear that the bonding sections of the plate bodies (21A, 22A, 23A, and 24A) may peel apart from each other, and the tray (2A) may deform. As a result, there is a fear that the objects to be packed, that is, the products may come in contact with each other and become damaged.
The present invention has been made in order to solve the abovementioned problems, and an object thereof is to provide a tray that can reliably protect objects to be packed when the logistics transportation or the freight handling is carried out, and a packing apparatus including the tray.
A tray according to the present invention includes: an outer sheet made of a cardboard sheet; at least one intermediate sheet wrapped in the outer sheet, each intermediate sheet being made of a cardboard sheet; and fastening means. The outer sheet includes: a bottom wall; a first lateral wall connected to the bottom wall by a first fold line; a second lateral wall connected to the bottom wall by a second fold line; a first upper wall connected to the first lateral wall by a third fold line parallel to the first fold line; and a second upper wall connected to the second lateral wall by a fourth fold line parallel to the second fold line. The fastening means is configured to fasten the first upper wall and the second upper wall.
A packing apparatus according to the present invention includes the tray.
According to the present invention, the objects to be packed can be reliably protected when the logistics transportation or the freight handling is carried out.
Embodiments are described below with reference to the drawings. Common elements in the drawings are denoted by the same symbols, and overlapping descriptions are simplified or omitted. This disclosure may include all the combinations of the combinable configurations out of the configurations to be described in the embodiments below.
As illustrated in
At least one recessed portion 13 is formed in an upper surface of the tray 1. In this embodiment, the tray 1 includes 15 recessed portions 13. Objects to be packed such as products can be at least partially accommodated in the recessed portions 13. In this embodiment, the shape of the recessed portion 13 is a rectangle in planar view. The shape of the recessed portion 13 in planar view is not limited to a rectangle and may be a square, a circle, an elliptical shape, or a trapezoid.
The outer sheet 2 includes a bottom wall 4, a first lateral wall 5, a second lateral wall 6, a first upper wall 7, and a second upper wall 8. The first lateral wall 5 is connected to the bottom wall 4 by a first fold line 9. The second lateral wall 6 is connected to the bottom wall 4 by a second fold line 10. The first upper wall 7 is connected to the first lateral wall 5 by a third fold line 11 parallel to the first fold line 9. The second upper wall 8 is connected to the second lateral wall 6 by a fourth fold line 12 parallel to the second fold line 10.
An upper surface of the bottom wall 4 is in contact with a lower surface of the intermediate sheet 3 that is lowermost layer. Lower surfaces of the first upper wall 7 and the second upper wall 8 are in contact with an upper surface of the intermediate sheet 3 that is the uppermost layer.
The shape of the bottom wall 4 in this embodiment is a rectangle. The first fold line 9 and the second fold line 10 are formed along the longitudinal direction of the bottom wall 4.
The shape of the bottom wall 4 is not limited to a rectangle. The shape of the bottom watt 4 may be a trapezoid. In this embodiment, the first fold line 9 and the second fold line 10 are parallel to each other. Not limited to this configuration, the first fold line 9 may be oblique to the second fold line 10.
As illustrated in
The outer sheet 2 in this embodiment includes first fastening tabs 15 and second fastening tabs 16. The first fastening tabs 15 are connected to the first upper wall 7 by a fifth fold line 17. The second fastening tabs 16 are connected to the second upper wall 8 by a sixth fold line 18. In the illustrated configuration, there are two first fastening tabs 15, and there are also two second fastening tabs 16. The number of first fastening tabs 15 may be one or three or more. The number of the second fastening tabs 16 may be one or three or more.
The bottom wall 4 has holes 19. In the illustrated configuration, there are two holes 19. In a state in which the tray 1 is assembled, the first fastening tabs 15 and the second fastening tabs 16 are fitted into the holes 19.
In this embodiment, the first upper wall 7 and the second upper wall 8 have shapes that are not symmetrical to each other. The first upper wall 7 is larger than the second upper wall 8. Not limited to this configuration, the shapes of the first upper wall 7 and the second upper wall 8 may be symmetrical to each other.
The shapes of the first upper wall 7 and the second upper wall 8 in this embodiment are rectangles. The shapes of the first upper wall 7 and the second upper wall 8 are not limited to rectangles. The shapes of the first upper wall 7 and the second upper wall 8 may be trapezoids.
The first upper wall 7 has an edge 21 on a side opposite to the third fold line 11. In the illustrated configuration, the edge 21 is parallel to the third fold line 11. Not limited to this configuration, the edge 21 may be oblique to the third fold line 11. The fifth fold line 17 is substantially collinear to the edge 21.
The second upper wall 8 has an edge 22 on a side opposite to the fourth fold line 12. In the illustrated configuration, the edge 22 is parallel to the fourth fold line 12. Not limited to this configuration, the edge 22 may be oblique to the fourth fold line 12. The sixth fold line 18 is substantially collinear to the edge 22.
As illustrated in
As illustrated in
The intermediate sheet 3 has holes 23. In the illustrated configuration, there are two holes 23. The intermediate sheet 3 has longitudinal direction edges 24 and 25. In a state in which the tray 1 is assembled, the following configuration is obtained. Each of the holes 23 in the intermediate sheet 3 is at the same positions as each of the holes 19 in the bottom wall 4. The first fastening tabs 15 and the second fastening tabs 16 are fitted into the holes 23 and the holes 19. The longitudinal direction edge 24 is in contact with or adjacent to the first lateral wall 5. The longitudinal direction edge 25 is in contact with or adjacent to the second lateral wall 6.
In a state in which the tray 1 is assembled, the following configuration is obtained. The first lateral wall 5 and the second lateral wall 6 are perpendicular to the bottom wall 4. The first upper wall 7 and the second upper wall 8 are parallel to the bottom wall 4. The first fastening tabs 15 and the second fastening tabs 16 are prevented from falling out of the holes 23 and the holes 19 by the frictional force between the outer peripheries of the first fastening tabs 15 and the second fastening tabs 16 and the inner peripheries of the holes 23 and the holes 19. The first fastening tabs 15 and the second fastening tabs 16 are in contact with each other.
According to this embodiment, the following effects are obtained when the logistics transportation or the freight handling is carried out. The intermediate sheets 3 are enveloped in the outer sheet 2, and hence the positions of the intermediate sheets 3 are regulated by the first lateral wall 5 and the second lateral wall 6. As a result, the position misalignment of the intermediate sheets 3 can be reliably prevented. Therefore, the deformation of the tray 1 can be reliably prevented. As a result, a case where the objects to be packed, that is, the products are brought into contact with each other and become damaged can be reliably prevented.
The first fastening tabs 15, the second fastening tabs 16, the holes 19, and the holes 23 are examples of fastening means for fastening the first upper wall 7 and the second upper wall 8. According to this embodiment, the first upper wall 7 and the second upper wall 8 can be reliably fastened by a simple configuration. According to this embodiment, the positions of the intermediate sheets 3 can be fastened by causing the first fastening tabs 15 and the second fastening tabs 16 to be in a state of being fitted in the holes 23 in the intermediate sheets 3. According to this embodiment, the first upper wall 7 and the second upper wall 8 can be more reliably fastened by causing the first fastening tabs 15 and the second fastening tabs 16 to be fitted into the holes 19 in the bottom wall 4 in addition to the holes 23 in the intermediate sheets 3. Instead of this configuration, the bottom wall 4 does not necessarily need to include the holes 19. That is, the first fastening tabs 15 and the second fastening tabs 16 may only be fitted into the holes 23 in the intermediate sheets 3. In addition, instead of the configuration in which all the intermediate sheets 3 include the holes 23, only a part of the intermediate sheets 3 on the upper layer side may include the holes 23.
In this embodiment, the first fastening tabs 15 and the second fastening tabs 16 are fitted into the holes 19 and the holes 23 together. Instead of this configuration, the first fastening tabs 15 and the second fastening tabs 16 may be fitted into separate holes.
The fastening means of the present invention is not limited to the abovementioned configuration. For example, the fastening means may be the following fastening means. The lower surfaces of the first upper wall 7 and the second upper wall 8 may be adhered to the upper surface of the intermediate sheet 3 that is the uppermost layer by an adhesive or a double-faced adhesive tape. First fastening tabs and second fastening tabs having hooks may be connected to the first upper wall 7 and the second upper wall 8, and the hooks of the first fastening tabs and the second fastening tabs may be engaged with the lower surface of the bottom wall 4. Instead, first fastening tabs and second fastening tabs having hooks may be connected to the bottom wall 4, and the hooks of the first fastening tabs and the second fastening tabs may be engaged with the upper surface of the first upper wall 7 and the second upper wall 8.
The packing apparatus 30 is assembled as below. The bottom tray 32 is placed on the pallet 31. The trays 1 are placed on the bottom tray 32. In this embodiment, a plurality of (six) trays 1 can be arranged on the bottom tray 32. The bottom walls 4 of the trays 1 are in contact with an upper surface of the bottom tray 32. The trays 1 in which the products 90 are fitted in the recessed portions 13 are stacked up into a plurality of stages. At this time, the positions of the products 90 on the tray 1 and the positions of the products 90 under the tray 1 matches in the front and rear and right and left horizontal directions. Then, the lateral sheet 33 is placed so as to cover the stacked trays 1. Then, the top cap 34 is mounted so as to cover the upper side of the stacked trays 1. Lastly, as illustrated in
According to this embodiment, the following effects can be obtained. A structure in which the products 90 mainly support the load is obtained. The structure is not affected by a change in strength of the tray 1 due to temperature and humidity. Load shifting due to the deformation of the packing material and the like is less likely to occur.
When the packing apparatus 30 is opened, the trays 1 may be individually removed and moved by hand. At that time, even when the products 90 are heavy, the folding deformation of the tray 1 in the horizontal direction thereof, and particularly the folding deformation in the middle of the tray 1 in the longitudinal direction thereof is less likely to occur. As a result, product damage caused by the products 90 being in contact with each other and the dropping of the tray 1 is less likely to occur.
The products 90 are fitted in the recessed portions 13 of the tray 1, and hence the shock that occurs in the trucking or the freight handling is absorbed by the crushing of the laminated cardboards, and the impact is mitigated. Therefore, the damage of the products 90 is less likely to occur.
As illustrated in
As illustrated in
Now, Embodiment 2 is described with reference to
As illustrated in
According to this embodiment, the following effects can be obtained by providing the chamfer portions 26 in the tray 1A. An operator can put his or her fingers in the chamfer portions 26 when the packing apparatus 30 is assembled or when the packing apparatus 30 is opened and the trays 1A are removed, and hence the trays 1A are easily moved and the working property is enhanced even more.
Filing Document | Filing Date | Country | Kind |
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PCT/JP2016/069155 | 6/28/2016 | WO | 00 |