JPS6313147Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a packaging box for storing powder and granular materials (detergent, etc.), and more specifically, it has a flap at the top and bottom, and can be used in a collapsed (folded) state. This invention relates to an improvement in packaging boxes that are stacked and transported and undergo a process of automatically assembling (erecting) one box at a time before filling the contents.

[Prior art]

As shown in Fig. 1, packaging boxes with flaps on the top and bottom, such as packaging box 1 for storing detergent, are conveyed in a collapsed state (flat state) in a stacked state (A in the figure). If the flap 2 on the top side is attached with a handle 3, the top side becomes thick and the whole flap curls, and the flap itself (especially the flap 4 on the bottom side) often curls as well. The packaging boxes 1 with their entire bodies and flaps 4 curled in this way are stacked and transported, and fed to a magazine by a loading plate of a loading machine (automatic feeder) (B in the figure). Next, these packaging boxes 1 are inverted and stored in the magazine section (C in the figure). A large number of packaging boxes 1 arranged side by side in an inverted state in this magazine section curl forward as shown by C in FIG. 1. The one in the front row of the many packaging boxes 1 stored in the magazine section is
The packaging box 1 is attracted by the suction pads 10 (see D in the figure), and as a result of the rotation of these pads 10 (arc movement of the picker arm), the packaging box 1 is raised as shown in E and F in the figure, and is then pulled up by the push rod 20. Then, it is transferred to the holder 30 of the filling machine (G and H in the figure). holder 30
The folded packaging box 1 held in the box 1 is sealed with the top flap 1 glued and folded, and a certain amount of detergent is filled from the bottom opening.
After filling, the flap 4 on the bottom side is sealed. If all the packaging boxes 1 stored in the magazine part are folded smoothly through this process, there will be no problem, but as mentioned earlier, if curling occurs, the suction pad 10 will not move the packaging boxes 1. Inconveniences arise in that the flaps do not abut uniformly or cannot be fully raised due to the circular motion of the Bitsker arm.Furthermore, if the flaps 2 and 4 are curled, gluing defects are likely to occur when the flaps 2 and 4 are bent and glued. This was also a cause of powder leakage.

[Purpose of invention]

The present invention has been devised in view of the above circumstances, and prevents the occurrence of flaps and overall curls, prevents the product from falling forward in the stocked state as shown in C in Figure 1, and ensures that each product is removed one by one. It is an object of the present invention to provide a packaging box that can be folded up and prevent the contents from leaking due to poor gluing of flaps.

[Structure of the idea]

In order to achieve the above object, the present invention provides a packaging box with flaps on the top and bottom of the box body, in which a tape-shaped hanger is folded into the flap so as to be exposed to the outside from the outer flap in the top flap. An embossed portion that bulges outward is provided on the outer or middle flap of the bottom flap.

[Example of idea]

Preferred embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIG. 2, a hanging handle 3 is provided on the flap 2 on the top side, and the box body 5 consists of four side plates 5a to 5d.
Flaps 2 and 4 are formed extending from the edges of the top and bottom opening ends, respectively. The flap 2 on the top side consists of a middle flap 2a, two inner flaps 2b, 2b, and an outer flap 2c.A hanger 3 having a Z-shaped folded part is attached to the middle flap 2a, and An opening 6 is formed in the flap 2c, and the hanger 3 is exposed to the outside through this opening 6. Bottom flap 4
Inner flap 4a and two inner flaps 4b, 4b
and an outer flap 4c. An embossed portion 7 bulging outward is provided on the middle flap 4a of these flaps 4. Also, glue the glue margin 5d' extending from the side edge of the side plate 5d to the side edge of the side plate 5a, and bend it from the folding line between the side plates 5b and 5c to make it flat (see Fig. 3). reference). A large number of packaging boxes 1 in the state shown in FIG.
It is sent to the steps shown in A to H in the figure. The embossed portion 7 bulges upward in the drawing, and the height of the bulge is approximately equal to the thickness of the folded handle 3. For example, if the hanging handle 3 is made of tape with a thickness of approximately 0.3 mm, the Z
Because it has a letter-shaped folded part, it is approximately 1 mm thicker (as the surface of the outer flap 2c bulges outward).
Therefore, the embossed portion 7 is also formed to a height of about 1 mm. The area of this embossed portion 7 is 278 mm in length excluding the trapezoidal portions at both ends of the middle flap 4a, and 278 mm in width.
If the size is 90 mm, the preferred size is about 164 mm x 20 mm. When packaging boxes 1 in a flat state before being folded are stacked as shown in FIG. 3, the stacking height h ₁ on the top side and the stacking height h ₂ on the bottom side are approximately the same as shown in FIG. 5. be equal. When this laminated state is passed through the steps B to H in Figure 1, no curing defects occur,
Furthermore, no gluing defects occur on the flaps.

As shown in FIGS. 6 and 7, for example, the hanger 3 has a tape-shaped hanger 3 which has a Z-shaped folded portion 3a at the approximate center of the middle flap 2a, and is made up of reinforcing tapes 8 and 8. Attach the outer flap 2c with an opening 6 above the inner flap 2a to which the hanger 3 is attached.
Attach. At this time, the Z-shaped folded portion 3a is not exposed from the opening 6 and is pressed down by the outer flap 2c. As other configurations of the hanger 3, those described in Japanese Utility Model Application Publication Nos. 57-174327 to 174330, which have already been filed by the present applicant, are known.

Further, in the embodiment, the flaps 2 and 4 are each made up of four pieces, but they may be made up of two, three, or more pieces.

[Effect of invention]

The packaging boxes 1 configured as described above are stacked in a flat state (Fig. 5), transferred to a loading plate by a conveyor, and then supplied to a magazine section by a loading plate of a loading machine (first (See Figure C). At this time, since there is no variation in the top and bottom thickness of the packaging box 1, it does not fall forward as shown in FIG. be done. The first row of packaging boxes 1 stored upside down in the magazine section are suctioned and erected by the suction pad 10 (see D in FIG. 1).
0 (see Figure 1 G), it is transferred to the holder 30 of the filling machine (see Figure 1 H), then the top flap 2 is glued, and the contents are filled from the bottom opening. The bottom flap 4 is also glued. Also when gluing, use the outer flap 4c or the inner flap 4.
Since the embossed portion 7 is formed on the flap 2a and the folded tape-like hanger 3 is provided on the flap 2a, each of the flaps 2 and 4 can be glued accurately without curling.

[Effect of idea]

As explained above, according to the packaging box of the present invention, the presence of the embossed part prevents the flap from curling and the entire flap from falling forward in the magazine part, and the subsequent folding operation is smooth. It is possible to prevent the contents from leaking by properly applying the flap and gluing the flap to prevent the contents from leaking.

[Brief explanation of drawings]

Fig. 1 is a process diagram illustrating the disadvantages of the conventional method that occur when detergent is automatically filled into a packaging box; Fig. 2 is a developed view of a packaging box showing a preferred embodiment of the present invention;
Figure 3 is a front view of the packaging box shown in Figure 2 crushed into a flat state, Figure 4 is a sectional view of the embossed part, and Figure 5 is a simplified perspective view of the packaging box shown in Figure 3 stacked up. Figure 6 is a perspective view showing the structure of the hanger, and Figure 7 is a perspective view showing the structure of the hanger.
The figure is a cross-sectional view showing the structure of the hanger after the flap is sealed.
FIG. 8 is a diagram showing a normal state in the magazine section. 1...Packaging box, 2...Flap, 2a...Middle flap, 2b...Inner flap, 2c...Outer flap, 3...Hanging handle, 4...Flap, 4a...Middle flap, 4b...Inner flap Flap, 4c... Outer flap, 5... Main body, 7... Embossed part.

Claims (1)

[Scope of Claim for Utility Model Registration] In a packaging box that is provided with a plurality of flaps extending from the edges of the top and bottom opening ends of the box body and is formed by folding and gluing each flap, A packaging box characterized by having a tape-like hanger folded so as to be exposed to the outside from the flap, and having an embossed part bulging outward on the outer or middle flap of the bottom flap.