JP4481766B2 - Packing structure - Google Patents

Description

  The present invention relates to the structure of a cardboard packaging box.

  Usually, a cushioning member is interposed between a cardboard packaging box and a stored item contained in the packaging box (see, for example, Patent Documents 1 and 2). The packaging box includes, for example, a main body including a side wall and a lid that covers an opening of the main body. In addition, the buffer member is attached to, for example, an upper portion of the accommodated item, and prevents the impact from being transmitted to the accommodated item when the packing box receives an impact.

  In such a configuration, the buffer member may be deformed (plastically deformed) in response to an external impact, for example. If the buffer member is deformed, there is a possibility that the buffer member may fall out of the stored item. In particular, when the buffer member is formed of cardboard in consideration of recyclability, the buffer member is likely to drop off. In addition, depending on the shape of the accommodated item and the buffer member, there is a case in which the cushioned member easily falls off from the accommodated item even if it does not deform. However, it is not preferable that the buffer member is removed from the stored product because a sufficient buffer effect cannot be exhibited.

Therefore, in order to prevent the buffer member from falling off the stored product, the buffer member and the stored product are fixed with a tape, or the buffer member and the packaging box are integrally formed.
JP 2003-175974 A JP-A-11-227770

However, when the buffer member and the container are fixed with a tape, work for fixing the container and the buffer member is required at the time of packing the container, which is troublesome. As a result, the cost increases. Further, when the buffer member and the packaging box are integrally formed, the shape of the packaging box becomes complicated, resulting in an increase in cost.
The present invention has been made under such a background, and an object of the present invention is to realize, at a low cost, a structure for preventing a shock-absorbing member from falling off from a stored item in a cardboard packaging box structure. .

In order to achieve the above object, the invention according to claim 1 is a structure of a cardboard packaging box (3), which is surrounded by four side walls (14) and whose upper end is opened, and a rectangular body (10). A lid (11) having an upper surface (19) having a shape and four side pieces (20) bent downward from four sides of the upper surface and covering the upper end opening (18) of the main body, and a packaging box A buffer member including at least two interference blocks (41 to 43) for filling a space between the container (2) and the side wall generated above the inside, and a connection plate (44) for connecting the buffer blocks to each other (4), and the connection plate includes a back surface facing the accommodated item and a surface opposite to the back surface, and the connection plate has each buffer block attached to the back surface. connects the respective buffer block each other, the buffer member When the connection plate is disposed so as to overlap the inside of the side wall of the main body, there is a hole (48) communicating with the joint insertion holes (22, 23) formed in the side wall of the main body and the side piece of the lid. It is the packing structure characterized by being formed.

In addition, the alphanumeric characters in parentheses represent corresponding components in the embodiments described later. The same applies hereinafter.
According to this configuration, the main body, the lid, and the buffer member can be fixed by inserting the joint through the hole in the side wall of the main body, the hole in the side piece of the lid, and the hole in the connection plate of the buffer member. Thereby, it can prevent that a buffer member is fixed reliably and moves carelessly, and can prevent falling from a stored article.

  Moreover, when fixing a main body and a lid | cover with a joint, a buffer member can be fixed simultaneously. Thereby, the labor for fixing a buffer member can be reduced in the packing operation of stored items, and labor saving can be realized. Furthermore, a simple configuration in which a hole is formed in the connection plate is sufficient, and as a result, a configuration for preventing the buffer member from falling off the accommodated product can be realized at low cost.

According to a second aspect of the present invention, the periphery of the hole for joint insertion formed in the connection plate of the buffer member has a region where the thickness is reduced by pressing the corrugated cardboard, The packing structure according to claim 1, further comprising a region where the thickness is reduced by pressing the surface around the hole on the side piece of the lid.
Compared to the conventional configuration in which the hole for joint insertion is formed only on the side piece of the lid and the side wall of the main body, this configuration increases the thickness of the cardboard around the hole for joint insertion. Can be prevented. Thereby, a conventional joint, that is, a joint that has been inserted through only the side wall of the main body and the side piece of the lid can be used as it is, and further cost reduction can be realized.

Embodiments of the present invention will be specifically described below with reference to the drawings.
FIG. 1 is an illustrative perspective view showing a schematic configuration of a packaging unit having a packaging structure according to an embodiment of the present invention. The packing unit 1 is for packing a container 2 having a substantially rectangular parallelepiped outer shape such as a printer or a copying machine. The packaging unit 1 includes a packaging box 3 for containing the accommodated item 2 and buffer members 4, 5, 6, 7 interposed between the packaging box 3 and the accommodated item 2.

The packaging box 3 is formed in a rectangular parallelepiped shape using corrugated cardboard, and includes a base 9, a main body 10, and a lid 11.
The base 9 has a bottom surface 12 formed in a rectangular shape. A rectangular side piece 13 is extended from each of the four sides of the bottom surface 12. Each of these side pieces 13 can be bent upward with respect to the bottom surface 12.

  The main body 10 is disposed above the bottom surface 12 of the base 9 and has four side walls 14 formed integrally. Each side wall 14 is formed in a rectangular shape, and adjacent side walls 14 are connected so as to be orthogonal to each other. Thereby, the main body 10 has a rectangular cross section. The main body 10 has a space S defined by being surrounded by four side walls 14.

  The base 9 and the main body 10 are connected to each other using a joint 15. Specifically, holes 16 and 17 for inserting the joints 15 are formed in the center of each side piece 13 of the base 9 and the center of the lower end of each side wall 14. When the four sides of the bottom surface 12 of the base 9 are brought into contact with the lower four sides of the main body 10 (the lower edge of each side wall 14), the holes 16 and the corresponding holes 17 communicate with each other. A joint 15 is inserted into the holes 16 and 17 communicating with each other (only one joint 15 is shown in FIG. 1).

The lid 11 covers the opening 18 by covering the opening 18 at the upper end of the main body 10 and has an upper surface 19 formed in a rectangular shape. The upper surface 19 is disposed above the opening 18 of the main body 10. A rectangular side piece 20 is extended from each of the four sides of the upper surface 19. Each of these side pieces 20 is bent downward with respect to the upper surface 19.
Similar to the case of connecting the base 9 and the main body 10, the main body 10 and the lid 11 are connected to each other using a joint 21. Specifically, holes 22 and 23 for inserting the joints 21 are formed in the center of each side piece 20 of the lid 11 and the center of the upper end of each side wall 14 of the main body 10. In the state where the opening 18 is closed along the edge of the opening 18 of the main body 10 (the upper edge of each side wall 14) and the four sides of the upper surface 19 of the lid 11, the holes 22 and the corresponding holes 23 Are communicating. A joint 21 is inserted into the holes 22 and 23 that communicate with each other (only one joint 21 is shown in FIG. 1). The joint 15 and the joint 21 have the same configuration.

The buffer members 4, 5, 6, and 7 are appropriately formed in a shape corresponding to the shape inside the packing box 3 and the outer shape of the stored item 2, for example, 2 on each of the upper side and the lower side of the stored item 2. One is attached.
The two buffer members 4 and 5 attached to the upper side of the stored product 2 are formed in a symmetrical shape with the stored product 2 interposed therebetween, and receive the upper surface of the stored product 2 and part of the four side surfaces. . These two buffer members 4 and 5 are surrounded by the side wall 14 of the main body 10 of the packaging box 3 and are sandwiched between the side wall 14 and the container 2.

  The two buffer members 6, 7 attached to the lower side of the stored product 2 are formed in symmetrical shapes with the stored product 2 interposed therebetween. These two buffer members 6 and 7 are disposed on the bottom surface 12 of the base 9 of the packaging box 3 and receive the bottom surface of the container 2 and part of the four side surfaces. Further, these two buffer members 6 and 7 are surrounded by the side wall 14 of the main body 10 of the packaging box 3 and are not slipped on the bottom surface 12 of the base 9 by being sandwiched between the side wall 14 and the container 2. Has been.

2A is a front view of the buffer member 4, FIG. 2B is a cross-sectional bottom view taken along line AA of FIG. 2A, and FIG. 2C is FIG. It is a cross-sectional side view which follows the BB line of (A). Since the buffer member 4 and the buffer member 5 have the same configuration, only the configuration of the buffer member 4 among the buffer members 4 and 5 will be described below.
2A to 2C, the buffer member 4 is formed of, for example, corrugated cardboard, and includes first to third buffer blocks 41 to 43 and the first to third buffers. It has the connection board 44 which connects the buffer blocks 41-43.

In the state in which the container 2 is stored in the container 3, a space (gap) is generated between the container 2 and the side wall 14 (illustrated by a two-dot chain line) of the main body 10. -The 3rd buffer blocks 41-43 are for filling up the space which has arisen above in packing box 3 among this space.
The first buffer block 41 is formed by integrally stacking a plurality of substantially square cardboards in the thickness direction. The first buffer blocks 41 are arranged at both ends of the buffer member 4 in the longitudinal direction L (hereinafter simply referred to as “longitudinal direction”), and form a pair. The front surfaces 41a of the first buffer blocks 41 face each other and receive the pair of side surfaces 2a and 2b of the container 2. The back surface 41 b of the first buffer block 41 is received by the corresponding side wall 14 of the main body 10 via the connection plate 44.

  Similar to the first buffer block 41, the second buffer block 42 is formed by integrally stacking a plurality of substantially square cardboards in the thickness direction. The second buffer block 42 is disposed between the pair of first buffer blocks 41. For example, two second buffer blocks 42 are provided, and are arranged in the longitudinal direction L at a predetermined interval. The surface 42a of the second buffer block 42 is orthogonal to the surface 41a of the first buffer block 41, and receives one side surface 2c sandwiched between the pair of side surfaces 2a and 2b of the accommodated product 2. ing. Further, the back surface 42 b of the second buffer block 42 is received by the corresponding side wall 14 of the main body 10 via the connection plate 44.

The third buffer block 43 is formed integrally by laminating a plurality of rectangular cardboards that are long in the longitudinal direction L in the thickness direction. The third buffer block 43 is spanned between the surfaces 41 a of the pair of first buffer blocks 41. The surface 43 a of the third buffer block 43 receives the upper surface 2 d of the stored item 2.
The connection plate 44 includes a side plate 45 parallel to the vertical direction, a top plate 46 extending from the upper end edge of the side plate 45, and a pair of end plates 47 extending from both end edges in the longitudinal direction L of the side plate 45. Contains. The side plate 45, the top plate 46, and the pair of end plates 47 are integrally formed.

The side plate 45 is formed in a rectangular shape elongated in the longitudinal direction L. One side surface of the first buffer block 41 and the back surface 42b of the second buffer block 42 are attached to the back surface 45b of the side plate 45, respectively. Further, the surface 45 a of the side plate 45 is in contact with the corresponding side wall 14 of the main body 10.
Similar to the side plate 45, the top plate 46 is formed in a rectangular shape elongated in the longitudinal direction L and extends horizontally. The upper surface of the first buffer block 41 and the back surface 43b of the third buffer block 43 are attached to the back surface of the top plate 46, respectively.

The pair of end plates 47 are each formed in a substantially square shape, and are orthogonal to the side plate 45 and the top plate 46. The upper end edges of these end plates 47 are in contact with both end edges of the top plate 46. The back surface 41 b of the first buffer block 41 is attached to the back surface of the end plate 47. Further, the surface of the end plate 47 is in contact with the corresponding side wall 14 of the main body 10.
Referring to FIG. 1, one of the features of this embodiment is that the buffer member 4 can be fixed by using a joint 21 for connecting the side wall 14 of the main body 10 and the side piece 20 of the lid 11. It is in the point.

Specifically, as shown in FIG. 2, a hole 48 for inserting the joint 21 is formed in the side plate 45 of the connection plate 44 of the buffer member 4. The hole 48 of the side plate 45 is disposed at the center in the longitudinal direction of the side plate 45 and is positioned between the two second buffer blocks 42.
With reference to FIG. 1, in the state where the container 2 to which the buffer members 4, 5, 6, 7 are attached is accommodated in the main body 10 and the lid 11 is put on the main body 10, the side piece 20 of the lid 11. As shown in FIG. 3 (A), they are arranged on the outside of the side wall 14 of the main body 10. Further, the side plate 45 of the connection plate 44 of the buffer member 4 is disposed so as to overlap the inside of the side wall 14. At this time, the hole 22 of the side piece 20 of the lid 11, the hole 23 of the side wall 14 of the main body 10, and the hole 48 of the connection plate 44 of the buffer member 4 communicate with each other.

  Further, areas around the hole 48 of the connection plate 44 of the buffer member 4 and the hole 22 of the side piece 20 of the lid 11 are provided with areas where the cardboard is pressed to reduce its thickness. Yes. Specifically, a partial region of the back surface 45 b of the side plate 45 of the connection plate 44 of the buffer member 4 is recessed, and this partial region is a surface pressing portion 49. The surface pressing portion 49 is formed, for example, in a rectangular shape around the hole 48 of the side plate 45, and the thickness of the corrugated cardboard is made thinner than other portions of the side plate 45.

Similarly, a partial region of the outer side surface 20 a of the side piece 20 of the lid 11 is recessed, and this partial region serves as a surface pressing portion 24. The surface pressing portion 24 is formed, for example, in a rectangular shape around the hole 22 of the side piece 20, and the thickness of the corrugated cardboard is made thinner than other portions of the side piece 20.
As a result, the thickness T1 of the side piece 20, the side wall 14, and the side plate 45 around the joint insertion holes 22, 23, and 48 is set in a region other than the periphery of the joint insertion holes 22, 23, and 48. It is equal to the thickness T2 of the side piece 20 and the side wall 14 (T1 = T2). Each said hole 22,23,48 is formed in the long hole, for example.

A known joint 21 is used. Specifically, the joint 21 includes a tubular portion 30, a flange portion 31 provided at one end of the tubular portion 30, and first and second movable pieces 32 provided on the inner peripheral surface of the tubular portion 30. , 33. The entire joint 21 is integrally formed of synthetic resin, for example.
The outer peripheral surface of the cylindrical part 30 is formed in the shape corresponding to the periphery of the hole 22, 23, 48 for joint insertion.

The flange portion 31 is formed in a plate shape and extends outward in the radial direction of the cylindrical portion 30.
The first movable piece 32 is formed in an L-shaped cross section, and includes an arm portion 32a extending from the inner peripheral surface of the cylindrical portion 30 and an extending portion 32b extending from the arm portion 32a. The first movable piece 32 is rotatable with respect to the tubular portion 30 with the connecting portion between the arm portion 32a and the tubular portion 30 as a fulcrum F1.

  The second movable piece 33 is formed in a T-shaped cross section, and includes an arm portion 33a extending from the inner peripheral surface of the cylindrical portion 30 and an extending portion 33b extending from the arm portion 33a. The second movable piece 33 is rotatable with respect to the tubular portion 30 with the connecting portion between the arm portion 33a and the tubular portion 30 as a fulcrum F2. When the second movable piece 33 is rotated in one direction (clockwise direction in FIG. 3A), the extending portion 33b comes into contact with the arm portion 32a of the first movable piece 32 and the first The movable piece 32 is rotated in the opposite direction (counterclockwise direction in FIG. 3A).

The lid 11, the main body 10 and the buffer member 4 are fixed using the joint 21 as follows. That is, first, the side piece 20 of the lid 11, the side wall 14 of the main body 10, and the side plate 45 of the buffer member 4 are overlapped to align the positions of the joint insertion holes 22, 23, 48.
Next, the tubular portion 30 of the joint 21 is inserted into the joint insertion holes 22, 23, and 48, and the flange portion 31 is brought into contact with the surface pressing portion 24 of the side piece 20. Then, the second movable piece 33 of the joint 21 is rotated in one direction to raise the extending portion 33 b so as to be parallel to the flange portion 31.

Thereby, the extending | stretching part 33b protrudes in the radial direction outward of the cylindrical part 30, as shown to FIG. 3 (B). At this time, the first movable piece 32 is rotated in the opposite direction as the second movable piece 33 is rotated, and the extending portion 32 b is raised so as to be parallel to the flange portion 31. Thereby, the extending portion 32 b protrudes outward in the radial direction of the tubular portion 30.
By the above operation, the extending portion 32 b of the first movable piece 32 and the extending portion 33 b of the second movable piece 33 abut on the surface pressing portion 49 of the side plate 45 of the buffer member 4. As a result, the joint 21 strongly holds the lid 11, the main body 10, and the buffer member 4 by the flange portion 31 and the first and second movable pieces 32 and 33. Thereby, fixation of the lid | cover 11, the main body 10, and the buffer member 4 is achieved.

  As described above, according to this embodiment, the joint 21 is inserted into the hole 23 of the side wall 14 of the main body 10, the hole 22 of the side piece 20 of the lid 11, and the hole 48 of the connection plate 44 of the buffer member 4. The main body 10, the lid 11, and the buffer member 4 can be fixed. Thereby, the buffer member 4 can be securely fixed and can be prevented from inadvertently moving, and can be prevented from falling out of the stored item 2. As a result, the buffering effect of the buffer member 4 can be satisfactorily exhibited.

  Further, when the main body 10 and the lid 11 are fixed by the joint 21, the buffer member 4 can be fixed at the same time. Thereby, it is possible to reduce labor for fixing the shock-absorbing member 4 and to save labor in the packing operation of the stored items 2. Furthermore, a simple configuration in which the hole 48 is formed in the connection plate 44 is sufficient, and as a result, a configuration for preventing the buffer member 4 from dropping from the accommodated product 2 can be realized at low cost.

  Further, the surface pressing portions 49 and 24 are formed on the connection plate 44 of the buffer member 4 and the side piece 20 of the lid 11 to reduce the thickness of the cardboard around the joint insertion holes 22, 23 and 48. Therefore, in contrast to the conventional configuration in which the joint insertion holes are formed only on the side piece of the lid and the side wall of the main body, in this embodiment, the holes around the joint insertion holes 22, 23, 48 are provided. It is possible to prevent the cardboard thickness from increasing.

Thereby, a conventional joint, that is, a joint that has been inserted through only the side wall of the main body and the side piece of the lid can be used as it is, and further cost reduction can be realized.
The present invention is not limited to the contents of the above embodiment, and various modifications can be made within the scope of the claims. For example, the number of the buffer blocks may be at least two. For example, among the first to third buffer blocks 41 to 43, only the first buffer block 41 or the second buffer block 42 may be used. In addition, only the first and second buffer blocks 41 and 42 may be used, only the first and third buffer blocks 41 and 43 may be used, or the second and third buffer blocks 42 and 42 may be used. Only 43 may be used.

In addition, each of the first to third buffer blocks 41 to 43 may be provided, or two or three or more may be provided. Furthermore, the buffer blocks 41 to 43 may be formed of a material other than cardboard, such as polystyrene foam.
Furthermore, the lid 11 may be fitted inside the side wall 14 of the main body 10. In this case, the side piece 20 of the lid 11 is disposed on the inner side (inner side surface) of the side wall 14 of the main body 10, and the connection plate 44 of the buffer member 4 is further disposed on the inner side. In this case, the surface pressing portion is formed around the hole 23 by recessing the outer surface of the side wall 14 of the main body 10.

Moreover, it is not necessary to provide a surface pressing part. Further, the buffer members 6 and 7 on the lower side of the accommodation product 2 are configured in the same manner as the buffer members 4 and 5, and the buffer members 6, 7, the main body 10, and the base 9 are fixed by the joint 15. May be.
Further, the outer shape of the stored item 2 is not limited to a rectangular parallelepiped shape, and may have other shapes. Further, the stored item 2 may be a device other than a printer or a copying machine.

It is an illustration perspective view showing a schematic structure of a packing unit provided with a packing structure concerning one embodiment of this invention. (A) is a front view of a buffer member, (B) is a sectional bottom view taken along the line AA in (A), and (C) is a sectional view taken along the line BB in (A). It is a side view. It is a cross-sectional side view of the main part of this embodiment, (A) is a state in which the side piece of the lid, the side wall of the main body and the side plate of the buffer member are overlapped, and the alignment of the holes for joint insertion is aligned. (B) has shown the state by which the joint was penetrated to the hole for joint penetration, and the lid | cover, the main body, and the buffer member were fixed.

Explanation of symbols

2 Contained Items 3 Packing Box 4 Buffering Member 10 Main Body 11 Lid 14 Side Wall 18 Opening 19 Upper Surface 20 Side Piece 22 Hole 23 Hole 24 Surface Pushing Section (A Region Where Cardboard Thickness is Reduced)
41 1st buffer block 42 2nd buffer block 43 3rd buffer block 44 Connection board 48 Hole 49 Surface pressing part (area | region where thickness of cardboard was made thin)

Claims (2)

A cardboard box structure,
Surrounded by four side walls, the upper end is an open body,
A lid having a rectangular upper surface and four side pieces bent downward from the four sides of the upper surface, covering the opening by covering the upper end opening of the main body;
A buffer member including at least two buffer blocks for filling a space between the container and the side wall generated above in the packing box, and a connection plate connecting the buffer blocks;
The connection plate includes a back surface facing the accommodation item, and a surface opposite to the back surface,
The connecting plate connects each buffer block by attaching each buffer block to the back surface,
When the connecting plate of the cushioning member is disposed so as to overlap the inside of the side wall of the main body, a hole communicating with the hole for joint insertion formed in the side wall of the main body and the side piece of the lid is formed. Packing structure characterized by that. The periphery of the joint insertion hole formed in the connection plate of the buffer member has a region where the cardboard is pressed to reduce its thickness,
The packing structure according to claim 1, further comprising a region where the thickness of the side wall of the main body or the hole on the side piece of the lid is reduced by pressing the surface.

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