JPH0213299Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a packaging device, which has particularly high strength and
This invention relates to a packaging device that is capable of packaging heavy items.

[Technical background of the invention and its problems]

Figures 1 to 3 show a conventional packaging device, which consists of an upper frame that engages with the upper side of the product and a lower frame that engages with the lower side of the product.The lower frame 1 is shown in Figure 1. A fork insertion hole 2 is drilled in the center of the side surface on the long side as shown in FIG. Then, as shown in FIG. 2, the retaining margin 3 and the short side surface portion are fixed with a stapler 4. As shown in FIG. 3, two shock absorbers 6, 6 having engaging recesses 6a that engage with the bottom of both sides of the product 5 are attached to the lower frame 1.
placed at both inner ends of the

The product 5 is placed in the engagement recess 6a of the buffer body 6 of the lower frame 1.
Packaging is performed by engaging the lower sides of both sides of the product 5 and engaging an upper frame (not shown) to the top surface of the product 5.

When a product is transported in the above-mentioned packaging device, the fork of a forklift is inserted into the fork insertion port 2, but the fork may damage the bottom of the product 5 during transport. Since the upper part of the fork insertion slot 2 of the lower frame 1 is made of a single piece of cardboard, its strength is very weak, and especially in the case of a heavy product, the lower frame 1 may deform and the product may tilt. Therefore, it was necessary to be careful when transporting it.

Therefore, when packaging a heavy product, as shown in FIG. , 6 are arranged.

Although this has high strength and does not cause deformation of the lower frame, it has the disadvantage that material costs are high and economic efficiency is poor.

[Purpose of invention]

The present invention was devised in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a packaging device that has great strength and is capable of packaging heavy items at low cost.

[Summary of the idea]

In order to achieve the above object, the packaging device according to the present invention is made of corrugated cardboard, has an upper frame that engages with the upper surface of the product, a fork insertion opening on both long sides, and has a fork insertion opening inside that is attached to the bottom of the product. In a packaging device comprising a lower frame for accommodating a buffer body provided with an engagement recess that engages on the side, the long side side surface portion of the lower frame has a double structure formed by folding in half, and the fork is folded in half. The insertion opening is provided by cutting a portion of the long side side surface upward, and this cut piece is placed in the gap between the double formed side surfaces, and a cross-sectional shape is provided inside both long side side surfaces. An L-shaped paper tube and a reinforcing material are arranged inside the bottom part of the lower frame, and the inner surface of the paper tube engages with the lower corner of the side surface of the product, and the lower surface position is aligned with the fork. The upper end position of the fork insertion opening is the same as that of the upper end of the insertion opening, and the strength of the upper part of the fork insertion opening and the bottom part of the lower frame is increased.

[Example of idea]

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 5 to 9, in which the same parts as in FIGS. 1 to 4 are denoted by the same reference numerals.

5 to 8 show an embodiment of the lower frame portion of the packaging device according to the present invention. The lower frame 1 is made of flat cardboard, and FIG. 5 shows an example of the lower frame portion. As shown in the unfolded state, there are two series of long side side surfaces 1b, 1 each having a width corresponding to the height of the side wall of the lower frame 1 on both longitudinal sides of the bottom surface 1a.
b, 1c, 1c are connected to each other via folding lines A, A, and stopper margins 3a, 3a are connected to both ends of the side surfaces 1c, 1c on the outer end side. In addition, short side side surfaces 1d, 1d constituting the end walls of the lower frame 1 are connected to each other on both sides in the short side direction of the bottom portion 1a via folding lines B, B, and a stopper 3b is provided at both ends. , 3b are arranged in series.

Holes 2a, 2a for forming fork insertion ports 2,2 are formed in the long side side parts 1b, 1b, and holes 7, 7 for handing are bored in one of the short side side parts 1c. There is.

Hole 2a constituting the fork insertion port 2, 2,
2a has one side along the folding line A with the bottom surface 1a on one of the long-side side surfaces 1b and 1c, and the other side approximately at the center in the width direction of the side surface 1b. The cut and bent pieces 2b thus formed are connected at the other side.

In addition, the other side surface portion 1c is formed from its outer edge line to approximately the center in the width direction of the side surface portion 1c, and the bent pieces 2b are connected at one side on the side of the center portion, and the side surface portion When 1c is bent inward, holes 2 in both side parts 1b and 1c
a and 2a are made to exactly match.

When assembling the lower frame 1, the cut and bent pieces 2b, 2b are attached to the side parts 1b, 1 as shown in cross section in FIG.
The sheet is folded in advance along the side parts 1b, 1c so that it is folded along the inside of each side of c, and then the side parts 1b, 1c, 1d are bent along the folding lines A, B, and C. At that time, the stop margins 3b, 3b at both ends of the short side side surfaces 1d, 1d are sandwiched, and the stop margins 3a, 3a at both ends of the long side side surfaces 1c, 1c are inserted into the short side side surfaces 1d, 1d. By fixing along the inside with a stapler 4 or the like, the lower frame 1 having the form shown in FIG. 6 is constructed.

As mentioned above, the holes 2a, 2a of the respective side surfaces 1b, 1c appear in the long side wall portion of the lower frame 1 in a penetrating state, and these constitute the fork insertion opening 2,
Also, the cut pieces 2b, 2b of each hole 2a, 2a are folded into the gap between the side surfaces 1b, 1c above the holes 2a, 2a, so that the upper side wall of the fork insertion opening 2 has a four-layer structure of corrugated cardboard. .

The two buffer bodies 6, 6 are each provided with an engagement recess 6a that engages with the lower corner of the side surface of the product, as shown in FIGS. Notches 8, 8 are provided in the frame 1 at positions corresponding to the holes 7, 7.

The above-mentioned buffer bodies 6, 6 are arranged at both inner ends of the lower frame 1, respectively, and are paper tubes 9, 9 each having an L-shaped cross section.
are arranged along the inner sides of both long sides of the lower frame 1, and both ends thereof are placed on the above-mentioned buffer bodies 6, 6. The paper tube 9 is arranged so that the inner corner of the upper surface engages with the lower corner of the product, and the position on the lower surface is the same as the upper end position of the fork insertion opening 2. Furthermore, inside the bottom part 1a of the lower frame 1, there is a reinforcing material 1 such as wood along the long side surface.
0 and 10 are placed.

In this example, when packaging the product, the 9th
As shown in the figure, the lower corner of the product 5 is
This is done by engaging the paper tubes 9, 9, respectively, engaging the upper frame 11 on the upper surface side of the product 5, and tying up the periphery with a band 12 or the like. When the product 5 is to be transported, the fork 13 is inserted into the fork insertion opening 2 as shown in FIG. 8, and the product 5 is transported.

In this embodiment, the upper end of the fork insertion opening 2, which is subjected to the force of lifting the fork 13 upward, is reinforced with a four-layer structure by folding back the cut pieces 2b, 2b. Since the product 5 is also supported on the lower surface, the lower frame 1 will not be deformed even when transporting a heavy product.

In addition, due to the arrangement of the paper tube 9, the fork 13 does not directly hit the product, so the bottom surface of the product is not damaged. Transport can be carried out. Furthermore, since the reinforcing material 10 is arranged inside the bottom part, deformation of the lower frame 1 can be prevented when transporting without using the forks 13 or when loading and unloading.

[Effect of idea]

As described above, the packaging device according to the present invention has a double structure on the long side surfaces of the lower frame, and folds the cut pieces generated when forming the fork insertion slot inside each long side side surface. They are stacked and placed in the gap between the side surfaces to give the section a quadruple structure, and a paper tube with an L-shaped cross section is placed on the inside of both sides of the long side, and a reinforcing material is placed on the inside of the bottom of the bottom frame. The inner surface of the paper tube engages with the lower corner of the side surface of the product, and the lower surface position is the same as the upper end position of the fork insertion hole, making it easy to use when transporting heavy objects using forks. deformation of the lower frame can be prevented.

Furthermore, since the cardboard near the fork insertion hole has a double or quadruple structure, it can maintain sufficient strength even if a forklift is accidentally operated, preventing the fork from breaking through the cardboard. It can be prevented.

In addition, by arranging the paper tube, the fork does not hit the product directly, which prevents the bottom of the product from being damaged.Furthermore, the reinforcing material is placed inside the bottom of the bottom frame. Deformation of the lower frame during loading and unloading of products can also be prevented. Furthermore, since the material is cardboard, the material cost is low and economical, and various other effects are achieved.

[Brief explanation of the drawing]

1 and 2 are a developed view and a perspective view, respectively, showing the lower frame of a conventional packaging device, and FIG. 3 and 4 are a front view and a perspective view, respectively, showing the state of the lower frame portion of a conventional packaging device. , Fig. 5 to Fig. 8 show an embodiment of the lower frame portion of the packaging device according to the present invention, Fig. 5 is a developed view of the lower frame, Fig. 6 is a perspective view of the lower frame, and Fig. 6 is a perspective view of the lower frame. 7 is an exploded perspective view, FIG. 8 is a front sectional view, and FIG. 9 is a perspective view showing an embodiment of the packaging device according to the present invention. 1... Lower frame, 2... Fork insertion slot, 3... Fasten, 4... Stapler, 5... Product, 6...
Buffer, 7... Hole, 8... Notch, 9... Paper tube, 10... Reinforcement material, 11... Upper frame, 12... Band.

Claims (1)

[Scope of utility model registration request] A buffer body made of corrugated cardboard and having an upper frame that engages with the top surface of the product, fork insertion holes on both sides of the long side, and an engagement recess that engages with the bottom surface of the product inside. In the packaging device, the long side side surface of the lower frame is folded in half to form a double structure, and the fork insertion opening partially extends upward from the long side side surface of the lower frame. This cut and bent piece is placed in the gap between the double side surfaces, and a paper tube with an L-shaped cross section is placed inside both side surfaces on the long side, and a paper tube with an L-shaped cross section is placed on the bottom of the bottom frame. A reinforcing material is arranged inside each section, and the inner surface of the paper tube engages with the lower corner of the side surface of the product, and the lower surface position is the same as the upper end position of the fork insertion opening. packaging equipment.