JPS6114989Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a reinforcing frame that prevents the cardboard boxes from being crushed or collapsed under the load caused by the stacking of cardboard boxes. It is.

(Prior art) At present, several decades have passed since cardboard boxes were used as packaging materials for transporting products, but it is difficult to use them for packaging heavy items, export items, etc. other than wooden boxes. This has become almost commonplace, and even in factories, lightweight parts that are produced in large quantities are often stored in returnable boxes.

(Problem that the invention aims to solve) However, with the recent rise in prices, corrugated paper has become expensive, and the use of waste paper is not very promising due to its strength and precision, and even if it is reused, it is easily crushed and torn. Therefore, there is a limit to the number of times it can be used.

Generally, when stacking cardboard boxes, the cardboard boxes themselves take on the load so as not to apply any load to the contents, but the load due to stacking is limited to 20 to 50 kg, and it is difficult to avoid long-term storage of cargo. In some cases, corrugated paper absorbs moisture, making it difficult to stack them high.

(Means for solving the problems) The present invention was conceived in consideration of these points, and is a device that can cover the sides of cardboard boxes that receive the load in the stacking direction,
The problem was solved by connecting two lightweight reinforcing frames capable of withstanding loads with a band to prevent the reinforcing frames from separating from each other.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

When corrugated cardboard boxes are normally stacked, the frame 1 is fitted onto the side surface that receives the load from the stacking direction so as to cover this side surface, so that the label on the side surface of the cardboard box can be seen on the side surface. A cut-out window 2 is provided to allow for opening. An engaging protrusion 4 is provided on one side of the peripheral edge 1' in the stacking direction to stabilize stacking, and an engaging recess 5 is provided on the opposite side. Although the frame body 1 is lightweight, it has a corresponding thickness and can withstand loads from the stacking direction.

In order to prevent the frames 1, 1 fitted to both sides of the cardboard box from falling off, a band 3 may be provided between the two frames.

As the material for forming the frame 1, thermoplastic synthetic resins such as polyethylene, polypropylene, polystyrene, and vinyl chloride are used.

(Effects of the invention) Since the present invention has a frame with the structure explained above, it can withstand the stacking load well and can be stored for a long time by fitting it to the side of the stacked cardboard boxes that receives the load from the stacking direction. Even if the cardboard box absorbs moisture due to moisture absorption, it can effectively prevent collapse or collapse due to expansion, and even if the box is slightly damaged, it can help maintain its shape and prevent damage to the contents.
In addition, since there is a band on the two frames that connects them, it is stable when used when fitted together, and since they are always connected with a band to form a pair, it is easy to use them as a pair. can do.

Furthermore, since the sides are largely hollowed out, it is not impossible to see the label on the side of the cardboard box during use, and handling is simple, as it is just a matter of fitting the box. Furthermore, since it is lightweight and can be mass-produced like corrugated cardboard boxes, it can be provided at low cost and has high utility value.

[Brief explanation of the drawing]

Figure 1 A and B are perspective views of the reinforcing frame of the present invention, Figure 2
The figure is a sectional view of another form of the same as the above, and FIG. 3 is a sectional view of the other form of the same as the above in a usage state. Code, 1...frame body, 1'...periphery, 2...window,
3...band, 4...convex part, 5...concave part.

Claims (1)

[Scope of utility model registration request] A frame body that can be fitted to cover the side surface of the cardboard box that receives the load in the stacking direction, and is lightweight and able to withstand the load, and the label, etc. on the side surface of the cardboard box can be attached to the side surface. This reinforced frame for a cardboard box is characterized by having a cut-out window for viewing and connecting two frame bodies with a band.