TWM496620U - Packing bag capable of expanding volume - Google Patents

Description

Expandable volume bag

The present invention relates to a packaging bag, and more particularly to a packaging bag of expandable volume.

Referring to FIG. 1 and FIG. 2, a conventional packaging bag comprises two pockets 11 which are opposite to each other and are the same size and define a chamber 12, and a chamber 12 and an outside for connecting the articles. Opening 13.

Referring to Figure 1, when the factory is shipped, the package is used to package the item. The opening 13 of the general package is opened on the long side, when the item is large and irregular in shape (such as a car bumper or a machine tool). The efficiency of the contents can be improved. However, after the article is loaded into the chamber 12, the opening is sealed with a patch. Since the opening 13 is opened on the long side, it is necessary to consume a large number of sealing articles in the sealing. The process also takes more time and is less aesthetically pleasing after packaging.

Referring to FIG. 2, if the opening 13 of the packaging bag is opened on the short side, the opening 13 has a small diameter, and is easily restricted by the opening 13 when the article is accommodated, and it is difficult to fit the article into the chamber 12, if Forcibly loading and even breaking the package in order to increase the loading rate. Therefore, regardless of whether the opening 13 is opened on the long side or the short side, there is a disadvantage that the cost and the loading efficiency cannot be achieved.

Accordingly, it is an object of the present invention to provide a package having an expandable volume that is less expensive, can increase the efficiency of the container, and avoids bag breakage.

Therefore, the novel expandable volume packaging bag comprises a base bag body, a cover bag body, an accommodating space and a bag mouth.

The cover bag covers and is disposed on the base bag and includes at least one expansion portion.

The accommodating space is defined by the base bag body and the cover bag body. When the expansion portion is deployed, the volume of the accommodating space can be expanded.

The bag mouth is defined by the base bag body and the cover bag body and communicates with the outside and the accommodating space. When the expansion portion is deployed, the bag mouth can be expanded.

The effect of the novel is that, by the arrangement of the expansion portion, even if the pocket is opened on the short side, the size of the pocket and the volume of the housing space can be expanded when the article is accommodated, so as to avoid the base pocket and the covering. The bag body is broken, which can take advantage of both low cost and high capacity.

2‧‧‧Basic bag body

21‧‧‧ first grassroots side

22‧‧‧Second grassroots side

23‧‧‧ Buffer layer

24‧‧‧woven layer

3‧‧‧ Covering the bag body

31‧‧‧First covered side

32‧‧‧Second covered side

33‧‧‧Expansion Department

331‧‧‧First Stack

332‧‧‧Second Zone

333‧‧‧The third district

4‧‧‧ accommodating space

5‧‧‧ bag mouth

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a perspective view illustrating a conventional packaging bag having an opening on the long side; FIG. Is a perspective view of another conventional packaging bag, the opening of the packaging bag is opened on the short side; FIG. 3 is an exploded perspective view showing the novel expandable volume packaging bag Figure 4 is a cross-sectional view showing the folded state of an expanded portion of the embodiment and a buffer layer and a braided layer of a laminated bag body; Figure 5 is a perspective view showing the expansion of the embodiment The portion is unfolded and expands the volume of an accommodating space and expands a bag opening; and Fig. 6 is a perspective view showing the case where the bag is closed after being loaded into a container.

Referring to FIG. 3, FIG. 4 and FIG. 5, the embodiment of the novel expandable volume packaging bag comprises a base bag body 2, a cover bag body 3, an accommodating space 4, and a bag mouth 5.

The base bag body 2 includes two first base layer side portions 21 respectively on opposite sides, two second base layer side portions 22 respectively connecting the first base layer side portions 21, and a buffer layer adjacent to the cover bag body 3 23, and a braid layer 24 disposed outside the buffer layer 23.

The lengths of the first base layer side portions 21 are greater than the lengths of the second base layer side portions 22, that is, the first base layer side portions 21 are the long sides of the package, and the second base layer sides are 22 is the short side of the package.

In this embodiment, the buffer layer 23 of the base bag body 2 is made of foamed polyethylene to provide cushioning protection. The material of the braid layer 24 is made of high density polyethylene to provide the base layer bag. 2 The preferred toughness, but not limited thereto, that is to say, the base bag body 2 is a composite material with high cost and good protection.

The cover bag body 3 is covered and disposed on the base bag body 2, and includes two first cover side portions 31 corresponding to the first base layer side portions 21, and two corresponding to the second base layer side portions 22, respectively. The second covering side portion 32 and an expanding portion 33 between the first covering side portion 31 and the second covering side portion 32.

The length of the first covering side portions 31 is greater than the length of the second covering side portions 32, that is, the first covering side portions 31 are the long sides of the packaging bag, and the second covering side portions 32 is the short side of the bag.

The expansion portion 33 has a first overlap region 331 overlapping with each other and being unfolded, a second stack region 332 folded over the first stack region 331, and a first overlap with the first stack region 331 The third stacking area 333 of the second stacking area 332 has an area larger than that of the base bag body 2 when the first stacking area 331, the second stacking area 332, and the third stacking area 333 are unfolded.

In this embodiment, the material of the cover bag 3 is made of a single material of polyethylene to reduce the cost and provide protection, but not limited thereto.

The accommodating space 4 is defined by the base bag body 2 and the cover bag body 3. When the expansion portion 33 is deployed, the volume of the accommodating space 4 can be expanded to avoid a container. The base bag 2 or the cover bag 3 is pierced and broken.

The bag opening 5 can communicate with the accommodating space 4 and the outside, and is defined by the second base layer side portion 22 and the second covering side portion 32. That is, the bag opening 5 is short in the packaging bag. side. When the expansion part 33 is exhibited When opened, the bag opening 5 can be expanded to facilitate the placement of the contents from the bag opening 5 into the accommodating space 4.

Referring to FIG. 5 and FIG. 6, after the container is placed in the accommodating space 4 by the bag opening 5, the bag opening 5 can be closed by a patch, heat sealing or the like.

Through the above description, the advantages of this embodiment can be summarized as follows:

1. Compared with the conventional packaging bag in which the opening 13 is located on the long side (see Fig. 1), the novel expandable volume packaging bag saves components and time spent on closing the opening.

2. Compared with the conventional package 13 in which the opening 13 is located on the short side (see FIG. 2), the package of the novel expandable volume can be easily placed into the package, and the accommodation space 4 can be expanded to avoid The base bag body 2 and the cover bag body 3 are broken.

3. By the buffer layer 23 of the base bag body 2 and the arrangement of the braid layer 24, the surface of the container can be effectively protected, for example, the painted surface of the automobile bumper.

It is worth mentioning that the novel expandable volume packaging bag is simple in consideration, and only one expansion portion 33 is provided. It can be understood that the packaging bag can also have two or more such expansion portions 33, The same purpose and effect as the present invention can be achieved.

In summary, the novel expandable volume packaging bag can combine the advantages of low cost and high capacity, and can also avoid being broken and pierced by the contents, so that the purpose of the present invention can be achieved.

However, the above description is only for the embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the present patent application scope and the contents of the patent specification are still It is within the scope of this new patent.

2‧‧‧Basic bag body

23‧‧‧ Buffer layer

24‧‧‧woven layer

3‧‧‧ Covering the bag body

33‧‧‧Expansion Department

331‧‧‧First Stack

332‧‧‧Second Zone

333‧‧‧The third district

Claims (10)

An expandable volume packaging bag comprising: a base bag body; a cover bag body covering and disposed on the base bag body, and comprising at least one expandable portion that can be unfolded; an accommodation space from the base bag body And the covering bag body is defined to extend the volume of the accommodating space when the expanding portion is unfolded; and a bag mouth, the base bag body and the covering bag body are cooperatively defined and connected to the outside and the accommodating space When the expansion portion is deployed, the mouth of the bag can be expanded. The expandable volume package of claim 1, wherein the expansion portion has a first overlap region that overlaps and can be unfolded, a second overlap region that is folded over the first overlap region, and a Cooperating with the first stack to sandwich the third stack of the second stack. The expandable volume package of claim 2, wherein the cover pocket has a surface area greater than a surface area of the base pocket. The package of the expandable volume of claim 3, wherein the base bag body comprises two first base layer sides respectively on opposite sides, and two second base layer sides respectively connected to the first base layer side portions. The cover bag further includes two first cover side portions respectively corresponding to the first base layer side portions, and two second cover side portions respectively corresponding to the second base layer side portions. The package of the expandable volume of claim 4, wherein the lengths of the first base layer side and the first cover side portions are respectively greater than the a second base side portion and the second cover side portions. The expandable volume package of claim 5, wherein the pocket is defined by a second base side and a corresponding second cover side. The package of expandable volume according to claim 1, wherein the base bag body has a buffer layer adjacent to the cover bag body, and a braid layer disposed outside the buffer layer. The expandable volume packaging bag according to claim 7, wherein the buffer layer is made of foamed polyethylene. The expandable volume package of claim 8, wherein the braid is made of high density polyethylene. The expandable volume packaging bag according to claim 1, wherein the covering bag body is made of polyethylene.