JPH06298243A - Bottom plate for packaging - Google Patents

Abstract

PURPOSE:To improve the discarding process property by a method wherein a bottom box made of a corrugated fiberboard and a bottom part cushioning material are fixed by fitting, and the bonding is eliminated. CONSTITUTION:The bottom plate for packaging is constituted in such a manner that when a bottom box which has right and left side walls 2, 2' and front and rear side walls 3, 3' on four edges, and has flaps 5, 5' for which rules 6, 6' being bendable inward are provided at the upper end edges of the front and rear side walls 3, 3' and bottom part cushioning materials 7, 7' made of formed styrene are combined, protruding parts 8, 8' which are provided on both end rising parts of the bottom cushioning materials, 7, 7' are fitted to be fixed in notches 9, 9' which are provided at the corresponding locations on the flaps 5, 5'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom box for packaging a refrigerator, which is composed of a cardboard bottom box and a polystyrene foam cushioning material.

[0002]

2. Description of the Related Art A general structure of a relatively heavy packaging container such as a refrigerator is shown in FIG.
The refrigerator main body 16 is placed on the bottom plate 14 having bottom cushioning materials 15 and 15 ′ fixed to the inner left and right ends of the container by adhesion or the like, and the sleeve-shaped cardboard box 17 is covered, and then the upper cushioning materials 18 and 18 are placed.
The structure was such that the '18' was inserted from the upper part, the corrugated board lid plate 19 was installed, and the whole was fastened with the band 20.

Here, the corrugated cardboard bottom box 13 of the packaging bottom plate 14 and the bottom cushioning materials 15, 15 'are received during handling in the manufacturing process of the refrigerator, handling after packaging work, long-term storage in a warehouse, and the like. Do not easily come off due to impact, etc.
It was general to firmly fix it by adhesion.

As a fixing method other than adhesion, as shown in FIG. 6, protrusions 22 and 22 'are provided at the rising portions of both ends of the bottom cushioning materials 21 and 21', and the corrugated outer box 23 is double-folded to the inside. The front and rear side walls 24, 24 fixed by adhesion
It is conceivable that the cardboard outer box 23 and the bottom cushioning materials 21, 21 'are fixed by fitting the punched holes 25, 25' at positions opposite to the protrusions in the ‘ When the bottom cushioning members 21, 21 ′ are moved a little due to a drop in handling, there is a possibility that the bottom cushioning members 21, 21 ′ may easily come off from the holes 25, 25 ′ provided in the front and rear side walls 24, 24 ′ of the bottom box 23.

Incidentally, in this type of conventional example, an actual Kaihei 3-1119 is used.
There is publication 20.

[0006]

The above-mentioned prior art does not consider the disposal of the packaging material, and has the following problems.

(1) Since the corrugated cardboard bottom box and the bottom cushioning material are fixed by adhesion, it is impossible to dispose of each material in the disposal process that occurs after the end of use.

(2) It takes a lot of time and effort to separate the cardboard bottom box and the bottom cushioning material.

(3) Since the adhesive remains attached even after the separation, the reprocessing cannot be performed.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional circumstances, and is provided with flaps that can be folded back inward from the upper and lower ends of the front and rear side walls of a corrugated cardboard bottom box, and both ends of the bottom cushioning material. The bottom box and the bottom cushioning material can be fitted and fixed by providing a notch at a position where the protrusion and the flap provided at the rising portion face each other.

[0011]

[Function] The flaps provided on the upper and lower edges of the front and rear side walls of the corrugated cardboard bottom box have foldable ruled lines inside the bottom box, but they are not fixed and always try to return to their original positions when folded inside. Resilience is working.

However, the bottom box is formed by fitting the projections provided on both the inner right and left ends of the bottom box at the rising portions of both ends of the bottom cushioning material and the notches of the flaps provided at positions facing the projections. Since the bottom cushioning material is fixed and the flap follows the movement of the bottom cushioning material due to some impact due to the restoring force of the flap, the bottom box and the bottom cushioning material are firmly fixed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3 and 4.

FIG. 1 is an external perspective view of a bottom plate for packaging, FIG. 2 is a developed view of the bottom plate, FIG. 3 is a sectional view taken along line AA of FIG. 1, and FIG. 4 is a sectional view showing another embodiment of the present invention.

Reference numeral 1 denotes a corrugated cardboard bottom box, and left and right side walls 2 on four sides,
A box is formed by stitching or adhesively fixing the joint margins 4 and 4'having front and rear side walls 3 and 3 '. Further, the front and rear side walls 3, 3'include flaps 5, 5'provided with foldable ruled lines 6, 6'on the inside of the bottom box 1 at upper edge portions thereof.

Reference numerals 7 and 7'indicate bottom cushioning materials made of styrene foam or the like.
have. Further, when the bottom cushioning members 7, 7'are inserted into the inner left and right ends of the bottom box 1, the flaps 5, 5'of the bottom box 1 are inserted.
At the same time, and when the bottom cushioning material 7, 7'is completely inserted, the notches 9, which can be fitted to the projections 8, 8'at the positions of the flaps 5, 5'opposed to the projections 8, 8 ', It has 9 '.

However, in the bottom plate for packaging according to the present invention, the bottom cushioning material 7, 7'is inserted into the left and right inner ends of the corrugated bottom box 1 while pushing down the flaps 5, 5'at the same time, and the bottom cushioning material 7, It is formed by fitting the projections 8 and 8'provided on 7'into the notches 9 and 9'provided in the flaps 5 and 5 '.

In the present invention, as shown in the sectional view of FIG. 4, grooves 12 may be provided on the upper portions of the projections 11 provided on the rising portions at both ends of the bottom cushioning material 10, in which case the slap 5 is not fitted. It becomes hard to come off and becomes stronger.

[0019]

Since the present invention is configured as described above, it has the following effects.

(1) The corrugated cardboard bottom box and the bottom cushioning material can be easily separated from each other by pushing the flaps provided on the bottom box further toward the front and rear side walls with fingers to separate them from each other.

(2) Since the bottom box and the bottom cushioning material can be easily separated, they can be discarded according to the material.

(3) Since no adhesive material is attached, a recycling process is possible.

[Brief description of drawings]

FIG. 1 is an external perspective view of an embodiment of a packaging bottom plate according to the present invention.

FIG. 2 is a development view of an embodiment of a packaging bottom plate according to the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view showing another embodiment of the present invention.

FIG. 5 is a development view of a packaging container showing a conventional example.

FIG. 6 is a development view of a packaging bottom plate showing a conventional example.

[Explanation of symbols]

 1 ... Bottom box, 3, 3 '... Front and rear side walls, 5, 5' ... Flap, 6, 6 '... Ruled line, 7, 7' ... Bottom cushioning material, 8, 8 '... Protrusion, 9, 9' ... Off Notches, 12 ... Grooves.

Claims (2)

[Claims] 1. A box is formed by having side walls on four sides and fixing seam margins at four corners by stitching or gluing, and a ruled line that can be folded inside the box is formed at upper end edges of front and rear side walls. In a combination with a cardboard bottom box provided with the provided flap and a bottom cushioning material made of Styrofoam or the like and provided with protrusions at both rising edges contacting the flap, the bottom cushioning material is used as a cardboard bottom box. When inserting into both left and right ends, a notch with a size that allows the projection to be fitted at the flap position facing the projection of the bottom cushioning material when the flaps are pressed down at the same time and the bottom cushioning material has been inserted A bottom plate for packaging characterized by. 2. The packaging bottom plate according to claim 1, wherein a groove is provided in an upper edge surface of the protrusion provided at both end rising portions of the bottom cushioning material.