JPS5938378Y2 - Bag with cushioning properties - Google Patents

Description

[Detailed description of the invention] The inventor of the present invention created a bag with cushioning properties as described in Japanese Utility Model Application Publication No. 112/1983, that is, a bag made of strong paper such as kraft paper, with tongue-shaped extension pieces connected to the front and back sides of the mouth. An outer bag and an inner bag made of similarly strong paper and slightly shorter than the outer bag are constructed, and the entire area between the inner and outer bags is made of a polyethylene foam sheet whose upper edge is the same height as the opening edge of the inner bag. Inserting the cushioning member, folding the extended pieces connected to the front and rear sides of the mouth of the outer bag inward, and attaching the tips of the diffraction delay long pieces to the inner surface of the mouth of the inner bag to provide cushioning properties. However, this bag is thin and has low strength because its side flaps consist only of the overlap between the upper side of the outer bag and its folded extension. Since the tip is fixed to the inner edge of the mouth of the inner bag, the inner thickness of the mouth of the buffer part constituted by the upper edges of the inner bag and the buffer member is increased, and the mouth edge of the rotation part is pinched by that amount. This has the disadvantage of making it difficult to take out and take out stored items.

The purpose of the present invention is to eliminate such defects, and the illustrated embodiment includes an outer bag 2 made of kraft paper and having extension pieces 1 and 1' connected to the front and rear sides of the 1'' portion. Similarly, an inner bag 3 with a small diameter and a small diameter is constructed from the outer bag 2 using kraft paper, and horizontal folding lines 4, 4', and between the inner and outer bags 2 and 30 is a polyethylene foam sheet with a corrugated cross-section whose width is slightly narrower than that of the outer bag and whose length is twice as long as the length from the bottom of the outer bag to the above-mentioned folding line. The buffer member 5 exhibiting the above is folded in two in a V shape and inserted, and then the extension piece 1 is inserted.
, 1' are folded inward and the extension pieces 1, 1' are attached to the inside of the portion above the folding line 4' at the opening of the inner bag, thereby constructing the packaging body A, In this packaging body A, the part above the folding line 4°4' is folded to one side along the same folding lines 4 and 4', and the folded part 6 is fixed to the packaging body A with adhesive tape 7, etc., and the side It was meant to be spoken.

Since the present invention has the above-described structure, it is of course possible to obtain a reliable shock-absorbing effect using a shock-absorbing member made of polyethylene foam sheet or the like to prevent stored items from being damaged by external impact. The idea was to construct an outer bag made of strong paper such as kraft paper with extension pieces attached to the front and back sides of the opening, and an inner bag made of similar strong paper that was much narrower and shorter than the outer bag. However, a horizontal folding line is formed at the same height on the upper side of both the inner and outer bags, and the width between the inner and outer bags is slightly narrower than that of the outer bag, and the length is longer than the bottom of the outer bag. Fold a cushioning member made of polyethylene foam sheet or the like that is twice as long as the folding line into two in a V shape and insert it, then fold the extension piece inward and insert the extension piece into the opening of the inner bag. A main body is formed by pasting it on the inside of the part above the folding line, and in this main body, the part above the folding line is folded back to one side along the diffraction curve. Therefore, the stitching piece of this bag has a triple structure consisting of the upper side of the outer bag, its folded extension, and the upper side of the inner bag, and is significantly strengthened. Since it is fastened to the extended part, the buffer area of the bag will not become narrow due to the fastening of the folded extension part of the outer bag. Therefore, with the above structure, the present invention achieves the above intended purpose. There are certain effects that can be achieved.

[Brief explanation of the drawing]

The figures show an embodiment of the bag with cushioning properties according to the present invention, in which Fig. 1 is a partially cut away perspective view of the entire bag, and Fig. 2 is Fig. 1A.
3 is a sectional view taken along the line A'-A in FIG. 1, and FIG. 4 is a perspective view showing the side opening state. 1.1/-...extension piece, 2...outer bag, 3.
...--Inner bag, 4?4/-...Folding line, 5...
...Buffer member, A... Mounting body, 6... Folded portion, 7... Adhesive tape.

Claims (1)

[Scope of utility model registration request] An outer bag is made of strong paper such as kraft paper and has extension pieces attached to the front and back sides of the opening, and an inner bag is made of similar strong paper and has a slightly smaller diameter and shorter length than the outer bag. A folding line in the horizontal direction is formed at the same height on the top side of the bag, and the width between the inner and outer bags is slightly wider than the outer bag, and the length is 2 from the bottom of the outer bag to the above folding line. Fold a cushioning member made of a polyethylene foam sheet or the like equivalent to the size of the polyethylene foam sheet in two into a V-shape and insert it, then fold the extension piece back inward and insert the extension piece into the opening of the inner bag. By pasting it on the inside of the part above the folding line, the main body is formed, and in this main body, the part above the folding line is folded to one side along the diffraction curve, and the folded part is attached with adhesive tape, etc. A bag with cushioning properties that is attached to the main body and has a side opening.