JPH0356549Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a packaging box in which a cushioning material is fixed to the bottom of the box.

Problems to be solved by conventional techniques and ideas In the above conventional packaging boxes, in order to fix the cushioning material to the bottom of the box, the cushioning material must be attached to the bottom of the box with adhesive or laid on the bottom of the box. However, the pasting process is time-consuming, the pasted state becomes sublime and disadvantageous for transportation and storage, and it is difficult to separate the cushioning material from the box material when disposing of it. It had drawbacks such as:

This invention does not require the work of pasting together cushioning materials.
To provide a packaging box with a cushioning material, which allows the cushioning material to be quickly, easily and reliably fixed to the bottom of the box at the same time as the box bottom assembly work, and which has advantages in transportation, storage and disposal.

Means for Solving the Problems In order to achieve the above object, the cushioned packaging box of the present invention has a pair of inner flap plates at the bottom of the box with fold lines interposed therebetween. a packaging box in which a protrusion in a shape that widens toward the free end of the inner flap plate can be cut and raised about the fold line side as a fulcrum, and a position opposite to the protrusion on the bottom facing the inner surface of the inner flap plate; It consists of a cushioning material for a box in which a concave portion having approximately the same shape as the projecting piece with the flared end is bored, and when the inner flap plate is opened when assembling the box bottom, the projecting piece with the flared end shape is inserted into the cushioning material. The cushioning material is temporarily held by fitting into the recess of the box and hooking both side edges of the projecting piece to both sides of the recess, and the cushioning material is fixed to the bottom of the box by folding the inner flap plate. It is something.

Embodiment The present invention, as shown in FIGS. 1 to 6,
It consists of one cardboard packaging box 10 and two box cushioning materials 20 made of expanded polystyrene resin. The box 10 has both side plates 11 and 11 and both side plates 14.
and 14 are arranged alternately through the fold lines 113, 114 and 144, and the upper inner flap plate 12 is attached to the upper side of each foot plate 11 via the fold line 111, and the lower inner flap plate 13 is attached to the lower side via the fold line 112. are arranged in series, and a broken line 141 is placed on the upper side of each side plate 14.
through the upper and outer flap plates 15, and the folded line 142 on the lower side.
The lower outer flap plates 16 are connected to each other via the
A fold line 112 extends toward the free end of each lower inner flap plate 13.
A protruding side 130 having a flared shape with the fulcrum at the fulcrum is provided so that it can be cut and raised. The projecting piece 130 fits into the recess 210 of the box cushioning material 20 to be described later, leaving a slight gap, and the projecting piece 130 fits into the recess 210 of the box cushioning material 20, which will be described later.
The space between the upper parts of the is wide, and both side edges 1301 and 130
The space between the lower parts of 1 is formed into a shape that widens towards the end of a narrow width. The cushioning material 20 has a recess 210 formed at a position opposite to the protrusion 130 on the bottom surface 21 facing the inner surface of the inner flap plate 13, and the recess 210 has approximately the same shape as the protrusion 130 that widens toward the tip. Both sides 21
It is symmetrically inclined so that the area between 01 and 2101 tapers toward the rear surface 22.

Function and Effect of the Idea A pair of inner flap plates 13 at the bottom of the packaging box 10
and 13, respectively, as shown in Fig. 1, after assembling the box, the bottom of the box should be facing upwards, and each flap plate 13, 16 should be expanded toward the outside of the box. , each inner flap plate 1 at the bottom of the box
3, put the cushioning material 20 on top of the cushioning material 20, fit the projecting piece 130 into the recess 210 of the bottom 21, and insert the both side edges 1 of the projecting piece 130 on both sides 2101 and 2101 of the recess 210.
301 and 1301 are temporarily held so that they are caught, then the inner flap plates 13 and 13 are folded into the inside of the box, and then the outer flap plates 16 and 16 are folded into the inside of the box.
By folding it inside the box and pasting it with tape, the bottom of the box can be assembled and the cushioning material 20 can be reliably fixed to the bottom of the box 10, as shown in FIG. Such fixing is possible because when each inner flap plate 13 is folded inside the box 10, as shown in FIGS. 3 to 5, the ridgeline 21 of the cushioning material 20
As the cushioning material 20 moves in the direction of the arrow F so that 1 coincides with the fold line 112 of the box 10, the protruding piece 130
This is because the side edges 1301 and 1301 of the buffer material are strongly pressed and engaged with both side surfaces 2101 and 2101 of the recess at the bottom of the cushioning material.

According to the present invention, with the inner flap plate open, the buffer material can be easily fixed to the bottom of the box by temporarily holding the buffer material on the inner flap plate and then folding the inner flap plate.

Therefore, it is possible to omit the conventional work of gluing the cushioning material to the bottom of the box and the work of inserting and assembling the cushioning material through the top opening of the box.
Not only is this economically advantageous, but the box material and the cushioning material can be stored or transported separately until just before product packaging, so there is no need to worry about bulk.

In addition, due to the above temporary holding, the ridge line on the folding line side of the inner flap plate in the cushioning material does not separate from the inner flap plate, so the process of folding the inner flap plate can be carried out stably, easily and quickly. I can do it.

Furthermore, in the packaging box of the present invention, in the process of temporarily holding the cushioning material and then folding the inner flap plate, both side edges of the protrusion are strongly pressed against both sides of the recess, making it easier to fit the two members together. This has the effect of making it stronger.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an inverted perspective view when the box bottom is assembled, FIG. 2 is a plan view after the box bottom is assembled, and FIGS. 3, 4, and 5 are inner flap plates. FIG. 6 is a developed view of the packaging box. DESCRIPTION OF SYMBOLS 10...Packaging box, 112...Folding line, 13...Inner flap plate at the bottom of the box, 130...Protrusion piece, 20...
Cushioning material for box, 21...Bottom of cushioning material, 210...
Recess at the bottom of the cushioning material.

Claims (1)

[Scope of utility model registration request] A pair of inner flap plates are provided at the bottom of the box via a fold line, and each inner flap plate is cut and raised from the fold line to a protruding piece having a shape that widens toward the free end of the inner flap plate using the fold line side as a fulcrum. a packaging box formed so as to be able to move; and a box cushioning material having a recess substantially the same shape as the flared protrusion at a position opposite to the protrusion on the bottom surface facing the inner surface of the inner flap plate. When the inner flap plate is opened when assembling the bottom of the box, the projecting piece with the flared end shape is inserted into the recess of the cushioning material, and both side edges of the projecting piece are hooked on both sides of the recess. 1. A packaging box with a cushioning material, characterized in that the cushioning material is temporarily held and the cushioning material is fixed to the bottom of the box by folding in the inner flap plate.