JPH0449065Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a packaging box in which the handle attachment portion has a strong structure.

[Prior Art and Problems] Conventionally, large cartons containing, for example, detergent, have a handle attached to the top of the carton so that they can be easily carried. The handle is usually made of a paper band or plastic band that is glued or riveted to the carton body, but the inner surface of the carton is reinforced to prevent the carton from being damaged by the load applied to the base of the band during transportation. The pieces were overlapped and fixed together, and the ends of the band were attached to this reinforcing part.

However, the installation process of the reinforcing piece, which is a separate part, is a separate process from the carton manufacturing process, and the work must be done manually, resulting in extremely low production efficiency. In addition, there is a drawback that the amount of material used for the box and the production cost are high, and furthermore, the number of parts of the packaging material increases, so there are other problems such as the management of the packaging material is complicated.

The present invention was proposed in order to solve the problems of the conventional type as described above. To provide a carton which improves productivity and economical efficiency by integrating a reinforcing member with a carton body, and allows easy management of packaging materials.

[Means for solving the problem] In order to achieve the above object, in a packaging box in which the end of the handle member is riveted to the facing wall board, opposing inner flaps extending from the wall board are manufactured. When holding the handle member, it is bent inward and a part of it is superposed and fixed to the inner surface of the wall plate of the box to strengthen the attachment part of the end of the handle member. When fixing the inner flap to the inner surface of the wall board adjacent to the flap, a reinforcing piece is defined in advance at the tip of the inner flap via a cut line, and after being attached, the reinforcing piece is separated from the inner flap. This is how it was done.

[Example] Next, an example of the present invention will be specifically described with reference to the drawings.

The handle-equipped carton of the present invention is formed by cutting a single flat sheet of paper into a rectangular shape as shown in FIG. In the figure, reference numerals 1 to 4 indicate four wall plates arranged in series in one direction, and from a functional perspective, they constitute side plates 1 and 3 and end plates 2 and 4, respectively. Reference numeral 5 denotes a joint piece for joining the four wall plates into a rectangular tube shape.

Further, numerals 6 and 10 are comparatively wide flaps protruding from both ends of the side plate 1, and numerals 7 and 11 are the end plates 2.
Relatively narrow inner flaps 8 and 12 protrude from both end edges of the side plate 3, and correspond to outer flaps 8 and 12 which protrude from both end edges of the side plate 3. Further, numerals 9 and 13 are inner flaps formed protrudingly on both end edges of the end plate 4, and the inner flaps 7 mentioned above are
and 11.

In addition, the above-mentioned flaps 6 to 9 and 10 to 13
In terms of their individual functions, they constitute a lid plate or a bottom plate, respectively.

By the way, at the tips of the inner flaps 7, 9 extending from the end plates 2, 4 in the above-mentioned blank sheet, reinforcing pieces 16, 17 of the wall plates, which can be separated by cut lines 14, 15 formed by perforations, etc., are defined. Form. Rivet holes 18 and 19 are bored in the center of the reinforcing pieces 16 and 17 for attaching a handle member,
Further, similar rivet holes 18a and 19a are previously drilled on the end plates 2 and 4 in correspondence with these rivet holes.

When making a box using a blank sheet having such a structure, first fold the inner flaps 7 and 9 inward as shown in FIG.
6 and 17 are pasted onto the end plates 2 and 4, and the rivet holes are aligned with each other. Next, cut wire 14,
The reinforcing pieces 16 and 17 are separated from the inner flaps 7 and 9 at step 15 to obtain a blank sheet as shown in FIG. 3B. In this way, a blank sheet with good paper removal can be obtained, and in this state it can be accumulated and stored before being made into a box.

The connecting end of the handle member 20 is fixed to the reinforcing portion constructed as described above using a rivet 21 as shown in FIG. 4. The handle member is usually a paper band or a plastic band made of polypropylene or the like, and it is preferable that a slit 22 for inserting the above-mentioned rivet 21 is formed at the adhesive end. Note that this slit 22 and the rivet hole 1
8 and 19, handle members 20 are usually attached at the time of carton manufacturing or at the filling line.

[Operations and Effects] To assemble and use the carton of the above embodiment, first, four panels 1 to 4 are pasted together via the joint piece 5 to form a cylindrical body constituting the carton body.

When manufacturing boxes, filling and sealing the contents,
First, the flat cylindrical body is raised into a rectangular cylindrical shape, and the inner and outer flaps of the bottom and top are folded and fixed using a conventional method. Then, the handle member 20 is attached to the carton during the carton manufacturing process or on the content filling line.

When assembling such a carton, it is preferable to use a packaging machine such as a wrap round caser or a side pack caser to carry out the entire process from forming the carton body to filling the packaged items and sealing the carton in an integrated process.

As detailed above, the present invention allows the handle member to be attached in an integrated process during carton manufacturing or filling, and the reinforcing member of the handle attachment part, which was previously a separate part, can be attached to the carton and the paper handle. Since it can be easily made into an integrated structure, it can be used not only manually but also automatically by mechanization. Furthermore, since the number of packaging material parts is reduced and the amount of material used is reduced, it is extremely beneficial in terms of packaging material management, productivity, and economy. Furthermore, since the load applied to the connection end of the handle member when carrying the carton is supported by the wall plate partially reinforced by the reinforcing piece, it is possible to prevent the wall plate from breaking due to the load, and the carton body can be made at low cost. It becomes possible to form it with a thin material.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the carton of the present invention, Fig. 2 is a developed view of a blank sheet used in the carton, Fig. 3 is an explanatory view showing the same assembly in progress, Fig. 4 is a band FIG. 3 is an enlarged view of the attachment part. 1, 3... Side plate, 2, 4... End plate, 5... Joint piece, 6, 8, 10, 12... Outer flap, 7,
9, 11, 13... inner flap, 14, 15...
Cut wire, 16, 17... Reinforcement piece, 18, 19...
... Rivet hole, 20 ... Handle member, 21 ... Rivet, 22 ... Slit.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a packaging box in which the end of the handle member is riveted to the opposing wall plate, opposing inner flaps extended from the wall plate are bent inward during box manufacturing, 1. A carton with a handle, characterized in that a portion of the flap is polymerized and fixed to the inner surface of a wall board adjacent to the flap to strengthen the attachment part of the end of the handle member. 2. A carton with a handle as set forth in claim 1 of the utility model registration claim, in which a reinforcing piece of the handle attachment portion is defined by a cut line such as a perforation at the tip of the inner flap. 3. A carton with a handle according to claim 1 of the utility model registration claim, which has rivet holes in the opposing wall plates and the tip of the inner flap.