JP2575710Y2 - Handbag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic bag, and more particularly to a plastic bag convenient for storing newspapers.

[0002]

2. Description of the Related Art Plastic handbags are very widely used because of their simplicity, and this manufacturing industry forms an enormous market. As one of these plastic handbags,
A very distinctive plastic handbag is found in Japanese Patent Publication No. 52-3
No. 9342. This bag is characterized in that the handle portion is initially folded over the top of the bag body portion, and the handle portion can be pulled out and used at the time of use. The bag proposed here is a handheld film 4 as shown in FIG.
Are attached to the outside of the opening 2 and those in which the handhold film 4 is attached to the inside of the opening 2 as shown in FIG. The former plastic handbag is convenient to use because you only need to grasp the bag when pulling out the handbag, but it is difficult to manufacture, so usually, the handbag film folded inside is usually used. Manufacturing. Further, the plastic handbag proposed in the above-mentioned patent publication does not have a square bottom shape, but a gusset fold can be formed on the bottom to form a square bottom by a known method. That is, if four corner bottom fusion lines are provided at the bottom and front and back of the gusset fold at the bottom and four lower corners on the left and right sides to form a square bottom, the bag body becomes a rectangular parallelepiped shape, and a fixed size paper such as a square body or a newspaper. Can be stacked and stored. When newspapers that have been read are folded and folded and stored in this bag, old newspapers can be stored neatly and stored, and they can be transported and discarded as they are, so use them as storage bags for old newspapers. Is now available. However, when the old newspaper in the handbag is recycled as used paper, the plastic bag must be removed.In the operation of removing the bag from the bag at the paper recycling factory, the newspaper inside is caught on the side of the plastic bag, and the bag is removed. There was a drawback that it took time and effort to take out because it did not easily fall outside even if it was inverted.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide, in a bag having the structure shown in FIG. 8, a plastic handbag that can easily remove contents such as old newspaper from the bag.

[0004]

As a result of examining the structure of the bag in question, the present inventor found that when a specific portion of the handbag was scored, when only the newspaper was taken out at a used paper recycling plant, the newspaper could be easily removed by hand from the score. The inventor of the present invention has found that it is possible to break the bag and that even if the notch is formed, the strength of hanging a heavy bundle of newspapers is not reduced.

That is, according to the present invention, a gusset fold is provided on the upper and lower sides of a long tubular thermoplastic plastic film, and a center fold of the upper gusset fold is cut to form a hand-held film. The upper edge corresponding to is cut off from the handle film and the opening, and it is fused and fused for each bag width to make the right and left fusion side edges, the lower gusset folded part has a square bottom, and the upper part is opened. A bag having four lower corners at both ends of the gusset at the bottom of the bag so as to divide a substantially right-angled isosceles triangle.
A plurality of square bottom fusion lines are provided, and the square bottom fusion lines form a square bottom shape by separately fusing and fixing a pair of films on each of the front and back surfaces of the gusset folded portion. At the upper left and right corners of the front and back openings near the both ends of the film, four slanted hand-fused lines extending in the left and right side edge directions are provided, so that the hand film is placed on the opening film. Are fixed separately on the front and back, between at least one of the four hand-held fusion lines and the corresponding fusion-side edge, and substantially along the fusion-side edge. The present invention provides a handbag which is provided with a notch below the opening.

The present invention will be described in detail with reference to the drawings of embodiments. In the plastic handbag shown in FIGS. 1 and 2, the two rectangular films on the front and back are formed of a single plastic film integrally connected via the bottom 3. The left and right side edges are fused by the side edge fusion line 6, and the bag 1
Is formed. The shape of the bag of the present invention can be not only a horizontally long rectangle but also a vertically long rectangle and a square when viewed from the side. In the case of newspaper handbags, landscape orientation is convenient.

A handhold film 4 is extended from the opening film 13 on the front and back surfaces to the inside at the fold 9 at the fold line 9. The center portion of the fold 9 is notched 17 so that the hand film 4 is separated from the opening film 13. A known method for forming a square bottom is applied to the bottom of the bag of the present invention. That is, a gusset fold is also formed on the bottom 3 in a W-shaped cross section as shown in FIGS. 2 and 3, and the bottom inner film 15 is provided on each of the front and back at four corner bottom fusion lines 18 on the front and back. If the two pairs of opposite films of the bottom outer film 16 are individually fused and fixed,
The bottom 3 of the bag body can be formed into a square bottom shape.

According to the present invention, the opening film 13 and the hand-held film 4 facing the opening film 13 are fused at the four hand-bonded fusion lines 5 extending downward on the left, right, front and back of the opening film 13. It is fixed. The angle of the hand fusion line 5 is approximately 45 degrees. The length of the hand-held fixing portion 5 can be increased according to the weight of the bag body portion. For that purpose, it is necessary to increase the vertical width of the handhold film 4.

The distal end portion A of the hand-held fusion wire 5 of this embodiment is bent in the horizontal direction, and the force is distributed on the line of the horizontal bent end portion A, so that the front end of the hand-held film does not break. . The distal end portion A of the fusion wire 5 of the present embodiment can be bent upward in a horizontal direction and then further bent upward.

[0010] Furthermore, the hand-held fusion wire 5 starts from the folded edge of the opening, but if the hand-held fusion wire 5 is provided inside the lower square bottom fusion wire 18 as shown in FIG. When suspending the bag, as shown in FIG. 4, the hand-held portion film has a shape extending from the inner surface of the bag body portion, and can be suspended in the shape shown in FIG. The cut C which is a feature of the present invention is provided between the side edge fusion part 6 and the hand fusion part 5 opposed thereto, and is provided below the opening along the side edge fusion part 6. The cuts C need to be provided in at least one of the four locations outside the four hand fusion lines at the opening of the handbag of the present invention. If there are cuts on the left and right sides of the handbag, it is convenient because it can be broken from either side of the bag, and if there are cuts on the front and back, the fused side edge between the two cuts C in FIGS. It is convenient to hold the upper edge of the part and tear it toward you, because the bag will rip to the bottom with a strip-like width and you will be able to eject the newspaper very easily.

The cut C can be simply cut by cutting the upper edge of the bag, but it is preferable to provide the cut in a perforated manner since the upper edge usually has a continuous shape, so that it is preferable from the appearance. . The length of the cut may be such that the initial tear is formed in the bag film, but if it is too short, the direction of the tear runs sideways and the tear stops at the side edge fusion part. About 5 cm is desirable. When the cut C is pulled from the left and right, the cut C is torn and the tear runs to the bottom on the extension line, the bag is completely broken, and the contents such as newspaper can be easily taken out. In other words, if the paper is severely torn from the cut C, the newspaper inside can be put into the recycled paper process by holding the bottom of the bag and inverting the bag.

The operation of tearing the cut C can be done by simply pulling the edge of the bag with one hand when the newspaper is inside. In this way, although the bag body can be easily broken from the cut, when the bag is suspended as shown in FIGS. 4 and 6, gravity is not applied to the cut C. There is no risk of tearing from C. In the case where the hand-held portion is protruded from the left and right side edges of the bag as in the bag of FIG. 6, the force for hanging the two cuts C inward may be exerted by the suspending force, but the force is not suspended in the separating direction.

As shown in FIG. 5, the handbag of the present invention is used for newspapers. As shown in FIG. 5, the intersection 12 of the hand-held fusion line and the upper edge is located exactly on the intersection 11 of the lower corner-base fusion line 18 and the lower edge. It is desirable to use one that is designed to When the intersection 12 is located immediately above or slightly outside the intersection 11, the bag body can be hung in a rectangular parallelepiped shape as shown in FIG. As shown in FIG. 6, the two handhold films 4 are attached so as to traverse the bag body in parallel in the vertical direction. For storing newspapers, it is desirable that the hand-held tape be lowered so as to cross over the newspaper. When hanging up in this manner, no gravity is applied to the cut C, so that the strength of the hanging up bag does not decrease.

[0014] The bag having such a rectangular parallelepiped shape is convenient because it is capable of stacking and storing fixed-shaped bags such as old newspapers. The handbag of this embodiment can be manufactured by a continuous bag making process. First, gusset folds are provided on the upper and lower sides of the long tubular film as shown in FIG. 3 while continuously pulling out a long tubular film to form a W-shaped cross-sectional structure on the upper and lower sides.
The fold 8 at the upper center of the fold is continuously cut with a knife. Next, the center fold of the upper edge is cut off, and the hand film 4 is separated from the edge of the opening film.
This notching step can be performed in any order of the steps.

For example, after a bag is manufactured, a large number of bags can be stacked and a punching step can be incorporated as a final step. Next, a metal separation plate is inserted between the upper and lower gusset folds, and a heat trowel is applied from above and below, and the hand fusing line and the square bottom of FIG. 1 or FIG. Form a fusion line. In these steps, it is convenient to simultaneously carry out the construction of the hand fusion line and the square bottom fusion line of the next bag on the boundary line with the next bag. In this case, the tip of the hand-held fusion line is curved in the horizontal direction.

Since the tip of the square bottom welding wire is continuous with the adjacent bag, a continuous one having a convex shape is used so that a hot iron is simultaneously welded to the next bag. Normally, in the present invention, it is desirable to use a heat iron having the tip round and curved. As shown in FIG. 1, FIG. 5 and FIG. 6, when the corner bottom fusion line 18 intersects the side edge 6 at a substantially vertical angle, the concentration of gravity is eliminated and the side edge is cut off in the bag making process. Sometimes, even if the fusion line to come on the boundary line is slightly shifted, the shapes of the square bottom fusion lines of the left and right bags are the same, and the strength does not decrease even if there is an error in the fusion position, which is desirable.

As described above, the long raw film on which the square-bottom fusion line 18 and the hand-held fusion line 5 have been constructed is then blown on the boundary line with a hot blade for each width of the bag. 1 or 5
It can be obtained with the handbag folded. Finally, when the cut C, which is a feature of the present invention, is perforated between the hand-welding line of the bag and the side edge welding portion, the hand-bag of the present invention can be manufactured. The cuts C can be provided at four positions between the four hand-welded fusion lines and the side edge fusion parts opposed thereto, and are provided at one or three of the four positions. be able to.

[0018]

The present invention has an advantage that when used in a storage bag for old newspapers or the like, the bag body is easily torn, so that contents such as newsprint can be easily taken out.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of a handbag according to the present invention.

FIG. 2 is a longitudinal sectional view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a tubular film provided with upper and lower gusset folds used for manufacturing a handbag of the present invention.

FIG. 4 is a perspective view showing a shape of the handbag according to the embodiment of the present invention when used.

FIG. 5 is a front view of another embodiment of the present invention;

FIG. 6 is a perspective view showing the shape of the handbag of FIG. 5 in use.

FIG. 7 is a perspective view of a known plastic handbag.

FIG. 8 is a perspective view of a known plastic handbag.

[Signs in the figure]

 DESCRIPTION OF SYMBOLS 1 Bag film 2 Opening 3 Bottom 4 Hand film 5 Hand fusion line 6 Side edge fusion part 7 Gazette fold 8 Gazette fold 9 Gazette fold 10 Gazette fold 11 Intersection between square bottom fusion line and lower edge 12 Hand Intersection point of fusion line and upper edge 13 Opening film 15 Bottom inner film 16 Bottom outer film 17 Notched portion 18 Square bottom fusion line A Hand fusion line tip curved portion B Square bottom fusion line curved portion C Break

Claims (2)

(57) [Scope of request for utility model registration] 1. A gusset fold is provided at the top and bottom of a long tubular thermoplastic plastic film, and a center fold of an upper gusset fold is cut to form a handhold film. The bag with the edge cut off and separated from the hand-held film and the opening, fused and fused for each bag width to make the left and right fusion side edges, the lower gusset folded part with a square bottom, and the upper part with the opening And providing four corner bottom fusion lines so as to divide a substantially right-angled isosceles triangle at four lower corners at both ends of the front and back sides of the gusset at the bottom of the bag,
The corner bottom fusion line forms a corner bottom shape by separately fusing and fixing a pair of films on the front and back sides of the gusset folded part separately for each pair. At the upper left and right upper corners of the opening, four slanted hand fusing lines extending in the left and right side edge directions are provided, whereby the hand holding film is separately fixed on the opening film. A cut is provided between at least one of the four hand-held fusion lines and the opposing fusion-side edge and substantially along the fusion-side edge and below the opening from the opening. A handbag that is characterized by: 2. The handbag according to claim 1, wherein the cut is a perforation.