JPS5843543Y2 - Cardboard box with skid structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a cardboard box with a skid structure.

Receiving pallets and skids are usually made of wood or metal and are designed to withstand considerable weight.

In addition, if the load to be loaded is relatively light items such as loose parts or fibers and does not require much strength, it is possible to create a grid by overlapping several plates vertically and horizontally, for example as shown in Figure 1. A so-called simple skid, which has wooden legs attached to it, is used.

By the way, in the case of cargo handling using skids as mentioned above,
If the cargo is simply placed on the skid, the cargo may move and shift due to vibrations during handling or transportation by forklifts, etc., so it is recommended to secure the loaded cargo to the skid using steel bands, etc. Or, as an alternative, a wooden box or framework capable of storing cargo to be loaded has been fixed to the skid by nailing, or a wooden box or framework and skid have been integrally constructed.

However, wooden boxes are quite heavy and expensive to manufacture, so if the cargo to be loaded is relatively light and the cargo can be stacked in two to three levels at most, and does not require much strength. Instead of wooden boxes, cardboard boxes fixed directly onto skids have been used.

Conventionally, to fix a cardboard box on a so-called simple skid,
As shown in Figure 2, G-TRO such as cardboard was attached to the skid structure by nailing, and this G-TRO was glued to the cardboard box using adhesive, etc., which required a lot of work to fix and increased costs. Ta.

In particular, two steps were required: making the skid and fixing the cardboard.

Furthermore, if the cardboard box is fixed to the skid with adhesive, it is impossible to remove the cardboard box when not in use.
It is not possible to fold the cardboard box when returning it from the destination.

In view of the above, the present invention was devised to reduce the labor required for combining skids and cardboard boxes and eliminate the above-mentioned conventional drawbacks, and provides a cardboard box with a simple skid structure. This is what I am trying to do.

That is, in the present invention, legs made of molded images of synthetic resin are arranged at least near the four corners of the bottom of a cardboard box, and each leg has a retaining protrusion with a sharp tip on its upper surface, and the retaining protrusion has a sharp tip on its upper surface. The mating protrusion is inserted into a reinforcing plate material corresponding to the bottom corrugated board, and is pierced through the bottom corrugated board, and a retaining means is provided to prevent the engaging protrusion from coming off, thereby engaging and connecting the legs to the bottom corrugated board. It is characterized by the fact that

Next, embodiments of the present invention will be described based on the drawings.

10 is a cardboard box, and 11 is its bottom cardboard.

Legs 20 are made of molded images of synthetic resin such as polypropylene, polyethylene, polyvinyl chloride, etc., and are arranged near the four corners of the bottom of the cardboard box.

The leg body 20 may have any shape, such as the square shape shown in the figure, the round shape, or any other shape, but several engaging protrusions 21 with sharp tips are integrally provided on the upper surface thereof.

In the case of the rectangular or round leg body 20, it is preferable to make the leg body 20 simply hollow as shown in the figure or hollow with a cross-shaped portion remaining, rather than making it solid, as this promotes weight reduction.

Reference numeral 30 denotes a reinforcing plate material made of wood, synthetic resin, or other rigid material, and is formed to have a length that is approximately the same as or slightly shorter than the vertical and horizontal dimensions of the bottom corrugated cardboard 11, and at least both ends thereof, for example, as shown in FIG. Holes 31 into which the engaging protrusions 21 of the legs 20 can be fitted are formed at both ends and the center.

Several plates 30 are stacked vertically and horizontally so that the holes 31 match, and are combined into a rectangular shape corresponding to the bottom corrugated board 11.
The engaging protrusion 21 of the leg 20 is inserted into the matching hole 31.31 of the overlapping portion, and is connected and held in a rectangular shape.

For example, in the case of FIG. 5, three plates 30 are overlapped in a circular manner both vertically and horizontally, and the engaging protrusions 21 of the legs 20 are inserted through matching holes 31, 31 of each overlapping portion.

The insertion operation of the engagement protrusions 21 is performed by arranging the required number of legs 20 in parallel at predetermined positions, and sequentially inserting the horizontal plate 30 and the vertical plate 30 into the engagement protrusions 21 of the legs. It's easy if you do.

In addition, when the number of engagement protrusions 21 provided on the upper surface of the leg body 20 is two as shown in the figure or other plurality, the same number of holes 31 are formed in the plate material 30 at corresponding positions.

In this case, it is desirable to determine the positions of the engagement protrusions 21 and the holes 31 so that the plate material 30 can be used both vertically and horizontally. For example, when there are two retaining protrusions 21, 45 degrees with respect to the vertical and horizontal directions as shown in the figure. If it is arranged diagonally, the plate material 30 can be used both vertically and horizontally.

In the case of this embodiment, there is no fear that the plates 30 combined into a rectangular shape will wobble or be deformed into a diamond shape.

In addition, as shown in FIG. 7, two plates 30 are overlapped in the shape of a mouth in both the length and width, and the matching holes 31 and 3 in the overlapping portions at the four corners are combined.
This can be carried out by inserting the engagement protrusions 21 of the legs 20 into each of the legs 1 in the same manner as described above.

Furthermore, a single rectangular plate corresponding to the bottom corrugated board 11 can be used as a reinforcing plate material.

A skid structure is obtained by combining the rectangular reinforcing plate 30 and the legs 20 as described above.
The engagement protrusion 21 penetrates the plate material 30 and projects upward.

Therefore, a predetermined cardboard box 10 is placed on the engagement protrusion 21 of this leg body 20, and using the sharpness of the tip of each retaining protrusion 21, a hole is punched from below into a predetermined location of the bottom cardboard 11. Then, the plate material 30 is bonded to the upper surface of the leg body 20 and the bottom corrugated board 11.

The distal end portion 22 through which the engaging protrusion 21 passes is provided with a retaining means to prevent it from coming off from the bottom cardboard box 11, thereby fixing each leg 20 to the cardboard box 10.

Therefore, legs 20 are attached to the bottom cardboard 11 of the cardboard box 10 at least near the four corners, and reinforcing plates 30 are further attached to the legs 20.

As a retaining means for preventing the engagement protrusion 21 from being pulled out, the distal end portion 22 of the engagement protrusion 21 is used as shown in FIGS. 8 and 9.
A retaining cap 25 having a retaining portion 24 corresponding to the retaining portion 23 is provided with a retaining cap 25 having a diameter larger than the corrugated board fitting portion, and after being inserted into the bottom corrugated board 11, a retaining cap 25 having a retaining portion 24 corresponding to the retaining portion 23 is elastically driven. The retaining cap 25 and the leg body 2
0 and the bottom cardboard 11 and reinforcing plate 3
0 can be glued.

When there are a plurality of retaining protrusions 21 on the upper surface of the leg body 20 as shown in the figure, the retaining cap 25 can be a combination of a plurality of cap parts so that it can be fitted to the tips 22 and 22 of the retaining protrusions 21 at once. .

Of course, a separate retaining cap can also be fitted to each tip 22.

In addition, as another embodiment of the locking means, a screw 26 may be formed at the tip 22 of the locking protrusion 21, and a locking cap 27 may be screwed onto the screw 26 (FIG. 10). It is also possible to provide a stopper structure (not shown) that allows the cap to be attached to the distal end portion 22 and latched by only slightly rotating the cap.

A retaining member other than a cap shape may also be provided in the same manner as in each of the above-described embodiments.

In the case of the embodiment using the above-mentioned retaining caps 25, 27, etc., since the retaining caps 25, 27, etc. can be attached and detached, the corrugated box 10 and the leg body 20 can be connected and disassembled as desired.

Furthermore, as another embodiment of the retaining means, as shown in FIG. 11, the tip portion 22 that penetrates the bottom corrugated board 11 is made slightly longer, and the portion is crushed from above and crushed or heated and melted to increase the diameter. It is also possible to prevent the engagement protrusion 21 from being pulled out by pushing the engagement protrusion 21 apart.

Furthermore, as another embodiment of the present invention, as shown in FIG.
Two reinforcing plates 30 are arranged in parallel only in one direction (horizontal direction in the figure), and the engaging protrusions 21 of the legs 20 are inserted into the holes 31 at both ends of these plates 30, respectively. At the same time, it is also possible to make each retaining protrusion 21 penetrate near the four corners of the bottom corrugated board 11, and to prevent it from coming off by the above-described retaining means.

This embodiment is suitable when the load to be loaded is lighter, and the space between the parallel plates 30 and 30 is the cardboard box 1.
It depends on the strength of 0 itself.

Further, when handling cargo using a forklift, the fork is inserted in a direction perpendicular to the plate material 30.

As described above, the present invention is constructed by disposing legs 20 made of synthetic resin moldings at least near the four corners of the bottom of the cardboard box 10, and having a skid structure or integrated with the cardboard box 10. It is suitable for cargo handling when the amount of cargo to be loaded is relatively light.

In particular, a retaining protrusion 21 with a sharp tip is protrudingly provided on the upper surface of the leg 2C, and the engaging protrusion 21 is inserted into a reinforcing plate material 30 corresponding to the bottom corrugated cardboard 11.
The structure of the skid structure and the connection between the skid structure and the cardboard box are can be easily and simultaneously performed without using nailing or adhesive means, can be easily assembled and manufactured in a shorter time than in the past using adhesive means, and a corrugated cardboard box with a skid structure can be provided at low cost.

In the case of the present invention, as described above, the engagement protrusion 21 of the leg 20 is pierced through the bottom cardboard 11 by using its sharp tip to make a hole, so that the bottom cardboard 11 is used for engagement. The reinforcing plate 30 is placed in close contact with the protrusion 21 so as to strongly hold it, and is interposed between the bottom cardboard 11 and the upper surface of the leg 20 to prevent the bottom cardboard 11 from weakening. The engagement and connection with the cardboard 11 can be maintained firmly, stably, and well.

Furthermore, an engagement protrusion 21 penetrated through the bottom cardboard 11
8 or 1 as a retaining means to prevent the
In the case of using the removable retaining cap system as shown in Figure 0, the legs 20 can be attached and detached at will, so when not in use, for example, when returning an empty cardboard box from the destination, the legs can be removed. The body can be removed from the cardboard box, the cardboard box can be folded low, and handling is easy and shipping costs are low.

Therefore, the present invention is extremely suitable as a corrugated cardboard box with a skid structure used when the cargo to be loaded is relatively light and does not require much strength.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a simple skid, FIG. 2 is a longitudinal cross-sectional view showing a state in which a conventional simple skid and a cardboard box are combined, and FIG. 3 is a partially cutaway front view showing an embodiment of the present invention. Fourth
The figure is a perspective view showing an example of the leg body, FIG. The figure is a plan view showing another combination of reinforcing plates, FIG. 8 is an enlarged cross-sectional view of the leg attachment part, FIG. 9 is a plan view of the same as above, and FIGS. 10 and 11 are respective engagement means. FIG. 12 is a sectional view of a leg attachment portion with a different configuration, and FIG. 12 is a plan view showing another embodiment. DESCRIPTION OF SYMBOLS 10... Cardboard box, 11... Open bottom cardboard, 2o... Monopod body, 21... Engaging protrusion, 22
・・Open end, 25. 27・・Curved engagement cap, 30・
...Plate material for reinforcement.

Claims (1)

[Claims for Utility Model Registration] 10 Legs made of molded synthetic resin are disposed near at least four corners of the bottom of a cardboard box, and each leg has an engagement protrusion with a sharp tip on its upper surface. The retaining protrusion is inserted into a reinforcing plate material corresponding to the bottom corrugated board, and is pierced through the bottom corrugated board, and an engaging means is provided to prevent the engaging protrusion from coming off, and the leg body is inserted into the bottom corrugated board. A corrugated box with a skid structure, characterized in that the box is engaged with and connected to the skid structure. 2. A cardboard box equipped with a skid structure as claimed in claim 1, in which a plurality of engaging protrusions are provided on the upper surface of the legs. 3. The skid according to claim 1 or 2, wherein several reinforcing plates are stacked vertically and horizontally and combined into a rectangular shape, and a retaining protrusion is inserted through the overlapped portion. Cardboard box with structure. 4. The skid structure according to any one of claims 1 to 3 of the claims registered as a utility model, wherein the engaging means is an engaging cap that is tapped and fitted onto the tip of the retaining protrusion. cardboard box with. 5. The skid structure according to any one of claims 1 to 3, wherein the locking means is a locking cap screwed onto the tip of the engagement protrusion. cardboard box. 6. The skid structure according to any one of claims 1 to 3 of the utility model registration claim, wherein the engaging means is obtained by crushing or heating and melting the tip of the engaging protrusion and expanding it. cardboard box with.