JP4954618B2 - Corner reinforcement bottom pad and packing case using the pad - Google Patents

Description

  The present invention relates to a bottom pad for corner reinforcement that does not require bonding and a case using the pad. In particular, it is a bottom pad that is preferably used for a case for transporting soft packaging products such as cosmetics and pharmaceutical products (for example, a packaging bag called a standing pouch), and has a double structure on the side and bottom of the case, The present invention relates to a bottom pad that also serves as a corner reinforcement capable of easily forming a reinforcing post at a side corner portion.

  As a case for storing and transporting detergents, cosmetics, pharmaceuticals, seasonings, and other soft packages filled with refilling liquids and powders, for example, the inventions of the packaging boxes of Patent Documents 1 to 4 have been conventionally known. It has been.

These conventional packaging boxes are provided with corner reinforcing columns for improving the pressure resistance of the box at the side corners of the box made of cardboard or the like. This corner reinforcing column has a structure with many triangular cross sections. This corner reinforcement column is integrally bonded and fixed to the side panel or the face panel, and the internal pressure and height applied to the side of the box and the face are mainly used during transportation, stacking during storage, and display. It acts to prevent deformation such as swelling and distortion of the box caused by the load in the direction.
Japanese Patent No. 3667792 Japanese Patent No. 2585066 JP 2000-190949 A specification JP-A-7-315436 specification

  However, as for the packaging box of patent documents 1-4, the box main part and the corner reinforcement pillar were integrally formed. In other words, the entire box including the corner reinforcement pillars is made of a one-piece (one) cardboard blank, and when the box is assembled, the corner reinforcement pillar forming panel is folded into a triangular cross section and adhered to the inside of the side panel or wife panel. Therefore, the packaging box could not be assembled unless a special machine (box making machine) was used.

  More specifically, the box form is not a general-purpose JIS-0201 type packaging box (called the A-type box in the industry and used most for exterior boxes), but the corner reinforcement column forming panel is the box body. It is a special specification packaging box that is integrally connected to the extension of the side panel or the face panel. In addition, since the corner reinforcement column and the side panel or the face panel are fixed together with an adhesive, it cannot be assembled in a factory that does not have a dedicated box making machine. Furthermore, the corner reinforcing column could not be made of a material different from that of the box body. Therefore, the running cost such as packaging material cost and assembly cost is high.

  In addition to the above-mentioned difficulties, when a used packaging box unpacked at a store or the like is dismantled and discarded at the store, the conventional ones have a corner reinforcing column and side panel or wife panel as described above. Was fixed together with an adhesive, so the dismantling work was not easy and took time.

  The present invention overcomes the problems of the prior art described above. That is, the present invention is a pad that is laid in a case for storing and transporting a flexible package, and the case has a double-side structure on the side surface and bottom surface, and a reinforcing column (corner) at the side corner portion. We propose a corner pad / bottom pad that can be easily formed.

In order to achieve the above object, the present invention of claim 1 is a bottom pad made of paper, such as cardboard, laid on the inner bottom of a packaging case,
A rectangular or square octagonal body that is similar to the inner bottom of the case, and a pair of opposite side edges of the body that are the same height as the side plates of the packing case and narrower than the side plates A pair of rectangular inner plates, and a pair of sleeve pieces connected to the left and right side edges of each inner plate, and when the pad body is laid on the inner bottom of the packing case, the pair of inner plates Is bent at right angles to the main body, and the pair of sleeve pieces straddle both side plates so as to form a corner reinforcing post having a triangular cross section at a corner formed between adjacent side bodies of the case. It is a paper bottom pad characterized by being locked like this.

  In the invention of claim 2, the bottom pad according to claim 1 is placed so as to be inserted into the bottom of a case of JIS-0201 type, and is adhered to a corner formed between adjacent side bodies of the case. An unnecessary triangular corner reinforcement post is formed.

The pad of the present invention does not require any adhesion to the case, and the side surface and bottom surface of the case have a double structure, and reinforcing columns (corner posts) can be formed at the side corners. Therefore, it is useful as a packing case for tightly storing a soft package filled with liquid / powder or the like, or as a case where a large stack of pressure is applied when displaying.
The packaging case can be easily assembled manually without using a dedicated machine.
In addition, since the pad is not bonded to the case body, the packing case of the present invention can be easily inserted and removed before and after use, and the case can be easily disassembled and discarded.
According to the present invention, the corner reinforcing column can be made of a material different from that of the box main body, and the packaging material cost and the assembly cost can be reduced.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of a packaging case according to the present invention. 2A is a development view of the pad laid in the case of FIG. 1, and FIG. 2B is a development view of the case main body of FIG. 3A to 3C are explanatory views showing a state in which the pad of FIG. 1 is inserted into the case main body. FIG. 4 is a perspective view showing an unpacked state of the case of FIG.

  As shown in FIG. 2B, the case main body 10 is made of a cardboard sheet such as a corrugated cardboard of a general-purpose JIS-0201 type packaging box (called an A-type box in the industry and used most for an exterior box). Assembled from a blank sheet. As shown in the figure, the blank sheet is formed by connecting a pair of long side plates 11a and 11b and a pair of short side plates 12a and 12b alternately in the horizontal direction, and forming an outer bottom and a lid on the upper and lower edges of each pair of side plates. The flaps 14a, 14b or 16a, 16b are connected to the inner flaps 15a, 15b or 17a, 17b, and the four side plates are assembled into a quadrangular cylindrical shape by the joining margin 13 provided at one end of the long side plate 11a. The body part of the case body can be configured.

  In the blank sheet, a series of cut tapes 18 are joined to the inner surface lower portions of the pair of long side plates 11a and 11b, the pair of short side plates 12a and 12b, and the connecting margin 13 constituting the body. Further, the pair of long side plates 11a and 11b are provided with notches 19a and 19b for forming the knob portion so that the end of the tape can be easily picked when the main body is broken along the cut tape 18. . A pair of cut lines extending from both sides of each of the long side plates 11a and 11b to the vicinity of both ends of the ruled line between the long side plates 11a and 11b and the outer flaps 14a and 14b serving as lids, with the cut as a base point. 20a and 20b are formed.

On the other hand, the corner reinforcement bottom pad 1 in the unfolded state shown in FIG. 2 (A) has a shape substantially the same as the inside size of the case body so that it can be inserted into the body of the case body assembled into a quadrangular cylinder. The paper sheet is formed. That is, the pad main body 2 is formed in an octagonal shape with four corners cut as shown in the figure. A pair of rectangular inner plates 3a, 3b having the same height as the short side plates 12a, 12b of the packing case and narrower than the side plates are connected to opposite ends of the body 2 respectively. A pair of sleeve pieces 4a and 4b are connected to the left and right edges of the inner plate.

  As shown in FIG. 3, the bottom pad 1 can be manually laid on the inner bottom of a case assembled with a general-purpose box making machine. At that time, the pair of inner plates 3a, 3b are bent at right angles to the pad body 2, and the pair of sleeve pieces 4a, 4b are bent with respect to the pair of inner plates 3a, 3b. At the corners formed between the adjacent side plates 11a, 12a or 11b, 12b, the two side plates 11a, 12a or 11b, 12b are locked so as to form a corner reinforcement having a triangular cross section. In other words, since the corner reinforcing pad is fixed by the bottom pad main body, it is not necessary to bond the conventional corner post to the case.

  In the case main body 10 with the bottom pad 1 inserted as described above, a soft bag filled with liquid / powder, such as a standing pouch, a product that is weak against pressure, or a product that cannot stand independently is stored. When the case is transported, stored, or displayed, the case has a double structure on the side and bottom of the case, and the case side corners are for reinforcement. Since the post (corner post) is formed, it is possible to improve the pressure resistance of the case and prevent deformation such as body swelling and distortion.

Next, an example of the unpacking method of the case of this invention is demonstrated.
As shown in FIG. 4, in the case of the present invention, a pair of long side plates 11a and 11b constituting the body portion are broken up and down by a cut tape 18, and both ends of a ruled line between outer flaps 14a and 14b serving as lids are formed. By cutting along the pair of cut lines 20a and 20 that reach the vicinity, a large opening can be easily formed on the side surface of the case, so that the storefront display property is high and the product can be easily taken out from the side surface. Further, by inserting a hand into the case from the opening, it is possible to take out the triangular corner reinforcing post together with the bottom pad, so that not only the product can be taken out but also discarded after use.

It is a disassembled perspective view which shows one Example of the packing case of this invention. (A) is an expanded view of the pad laid in the case of FIG. 1, (B) is an expanded view of the case main body of FIG. (AC) is explanatory drawing which shows the state by which the pad of FIG. 1 is inserted in a case main body. It is a perspective view which shows the unpacking state of the case of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Corner reinforcement bottom pad 2 Pad main body 3a, 3b Inner board 4a, 4b Sleeve piece 10 Case main body 11a, 11b Long side board 12a, 12b Short side board 13 Connecting margin 14a, 14b, 16a, 16b Outer flap 15a, 15b, 17a, 17b Inner flap 18 Cut tape 19a, 19b Knob part forming cuts 20a, 20b Cut line

Claims (2)

A paper bottom pad laid on the inner bottom of a rectangular cylindrical packing case,
A pair of rectangular inner plates that are the same height as the both side plates of the packing case and narrower than the two side plates are connected to the opposite sides of the main body and a pair of opposite sides of the main body. ,
The sleeve is connected to the left and right edges of the inner plate,
When the main body is laid on the inner bottom of the packing case, the pair of inner plates bend at right angles to the main body,
The sleeve piece, the corner formed between the side plates adjacent the same case is locked so as to straddle the side plates adjacent to form a corner reinforcing post triangular cross section,
A paper bottom pad, which is a side of the octagonal main body corresponding to the both side plates, and a length of a hypotenuse connecting adjacent sides and a width of the sleeve piece are the same . The bottom pad according to claim 1 is placed so as to be inserted into the bottom of a quadrangular cylindrical case, and a corner reinforcing post that does not require adhesion is formed at a corner formed between adjacent side bodies of the case. A packaging case characterized by being formed.

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