JP2519556Y2 - Packing box structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the structure of a packaging box.

[Conventional technology]

As shown in FIGS. 5 and 6, the conventional technique of this kind is to use flaps 22 provided at the tips of the rising surfaces 21 on all sides.
Is bent inward to be superposed, and the superposed portions are joined by a plurality of stitch needles 23, and one opening is closed by the same joining, and a box 24 in which another opening 26 is provided in the other direction is provided.

The adhesive 26 is provided with a plurality of cushioning materials 25 with the opening 26 facing upward and the adhesive 27 is applied to the three surfaces of the bottom surface and both side surfaces.
A plurality of cushioning materials 25 coated with 27 were attached in the corners of the box 24 as shown by arrows in the figure to provide a packaging box.

[Problems to be solved by the device]

The above-mentioned conventional drawback is that a flap for closing one opening constituting the box is provided, and a plurality of stitch needles are used for superposing and joining the flaps, so that the material cost of the flap portion and the stitch needle is changed. And the man-hours for polymerizing and bonding the flaps and the man-hours for applying the adhesive to the cushioning material, and further, the adhered adhesive is dried and solidified, and the packaging box cannot be transported until the cushioning material is fixed. There was a problem.

[Means for solving the problem]

In order to solve the above-mentioned problems, in the present invention, a flat surface portion forming the bottom surface of the box, a rising surface connected to one opposite side of the flat surface portion with a first fold line, and a second fold line at a side end of the rising surface are provided. A projecting side with a fitting insertion hole to connect,
From a base material provided with a flap provided with a cut-and-raised protrusion that engages with the fitting insertion hole connected to the other opposite side with a third fold line, and a cushioning material provided with a groove portion that engages with the protrusion. A box is formed by bending the rising surface, the projecting side and the flap from the first folding line, the second folding line and the third folding line, respectively, and inserting the projection of the flap into the fitting insertion hole of the projecting side. Then, the cushioning material is held in the box by press-fitting the groove portion of the cushioning material into the protrusion protruding from the fitting insertion hole.

[Action]

According to the above configuration, the protrusion is bent in the flap direction, the protrusion of the flap is inserted into the fitting insertion hole provided in the protrusion to form a box, and the protrusion protruding from the fitting insertion hole. The groove portion provided in the cushioning material is pressed into.

〔Example〕

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

FIG. 1 is a development view showing an embodiment of the present invention, in which a flat surface portion 1 constituting a bottom surface of a box 13 is provided in the center, and a rising surface 3 connected to each opposite side of the flat surface portion 1 by a first broken line 2.
And projecting a protruding piece 5 connected to the side edge of the rising surface 3 with the second bent line 4, the second bent line 4 is inserted into the protruding piece 5 of the other side.
A slit-like insertion hole 17 parallel to the above is provided, and a flap 7 that is connectable and bendable with a third fold line 6 is formed on the other opposite side of the flat surface portion 1, and a fourth fold line 8 can be connected and cut and raised in the flap 7. A base material 12 is provided which is provided with the protrusions 9 facing each other, and the hook-shaped portions 10 are provided on both sides of the protrusions 9.

When the protrusion 9 is cut and raised, a punch hole is provided on the outer periphery of the protrusion 9 so that a finger can be inserted, and the protrusion 9 can be easily
You may be able to wake up.

As another example of the shape of the hook-shaped portion 10, a saw-toothed blade shape is formed on the hook-shaped portion 10, and when the cushioning material 14 is press-fitted into the protruding portion 9, the saw-toothed blade shape bites into the cushioning material 14 to form a protrusion. The cushioning material 14 may be prevented from coming out easily from the portion 9.

FIG. 2 is a perspective view of an essential part showing an assembling process of the box,
Each rising surface 3 provided with the opposite side is bent from the first fold line 2 to the plane portion 1 side in a substantially vertical shape. Next, the projecting piece 5 is bent toward the flat surface portion 1 side from the second folding line 4 at a substantially right angle. Then, the protrusion 9 provided in the flap 7 is bent substantially vertically from the fourth fold line 8, and then the flap 7 is bent almost vertically from the third fold line 6 toward the protruding piece 5 side. The hook-shaped part 10 is inserted into the fitting insertion hole 17 provided in the projecting piece 5 as shown by an arrow in the figure, the hook-shaped part 10 is locked inside the projecting piece 5, and the flap 7 is returned to the original direction. Form a box 13 that does not return.

FIG. 3 is a perspective view of a main part showing a process of assembling the packaging box,
FIG. 4 is a sectional view of the main part taken along the line AA in FIG. 3, where a cushioning material 14 is provided to protect the product from being damaged even if it receives a shock generated during transportation. An outer wall of each cushioning member 14 is provided with a recessed groove portion 16 having a hollow step portion 15 in contact with one end of the outer contour of the cushion member 14 and engaging with the projection portion 9.

The cushioning material 14 may be divided into four or two parts which are inserted into the corners of the box 13.

Then, the hollow step portions 15 of the cushioning material 14 are respectively directed inward of the flat surface portion 1, and the groove portions 16 of the cushioning material 14 are formed in the projections 9 protruding from the fitting insertion holes 17 of the completed box 13. As shown by the arrow, it is pressed in from the lateral direction and inserted into the corner of the box 13 to complete the packaging box.

The material of the base material 12 is mainly a cardboard or a resin sheet, and is formed by pressing.

The material of the cushioning material 14 is mainly resin foam sterol or polystyrene foam, and is formed by foam molding or cutting out from a laminated plate or block material.

[Effect of device]

Since the present invention is configured as described above, the following effects can be obtained.

The protrusion is bent in the flap direction, the protrusion of the flap is inserted into the fitting insertion hole formed in the protrusion to form a box, and the protrusion protruding from the fitting insertion hole is provided on the cushioning material. The groove is press-fitted to form a packaging box that can be handled as a single component.The flap that closes one opening of the box and the stitch needle for polymerizing the flap eliminates the material cost. It is possible to reduce the number of man-hours required for the polymerization bonding and the man-hour required for applying the adhesive to the buffer material.

Therefore, it is possible to easily assemble the packaging box even by an unskilled person without using stitch needles or adhesives, and to transport the completed packaging box immediately without waiting for the adhesive to dry. Have.

[Brief description of drawings]

FIG. 1 is an exploded view showing an embodiment of the present invention, FIG. 2 is a perspective view of an essential part showing an assembling process of the box, and FIG. 3 is a perspective view of an essential part showing an assembling process of the packaging box. FIG. 4 is a sectional view of a main part taken along the line AA in FIG. 3, FIG. 5 is a bottom perspective view showing the conventional structure, and FIG. 6 is a main part perspective view of the same mounted state. In the figure, 1 is a flat surface portion, 2 is a first broken line, 3 is a rising surface,
4 is a second folding line, 5 is a projecting piece, 6 is a third folding line, 7 is a flap, 8 is a fourth folding line, 9 is a protruding portion, 10 is a hook-shaped portion, 12 is a base material, 13 is a box, and 14 is a buffer. Material, 15 is a hollow stepped portion, 16 is a groove portion, and 17 is a fitting insertion hole.

Claims (3)

(57) [Scope of utility model registration request] 1. A flat part forming a bottom surface of a box, a rising surface connected to one opposite side of the flat part with a first fold line, and a fitting insertion hole connected to a side end of the rising surface with a second fold line. A base having a protruding side and a flap having a cut-and-raised protrusion that engages with the fitting insertion hole connected to the other opposite side with a third folding line, and a groove that engages with the protrusion The rising surface, the projecting side and the flap are respectively bent from the first fold line, the second fold line and the third fold line, and the projection part of the flap is inserted into the fitting insertion hole of the projecting side. Thus, a box is formed, and the buffer material is held in the box by press-fitting the groove portion of the buffer material into the protrusion protruding from the fitting insertion hole. 2. The packaging box structure according to claim 1, wherein the base material is a cardboard or resin sheet. 3. The packaging box structure according to claim 1, wherein the cushioning material is a polystyrene foam or polystyrene foam made of resin.