JPH0555915U - Carrying bag - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To provide a handbag that can easily tear the bag when discarding without sacrificing the strength of the bag when hanging. [Structure] The lower gusset fold portion has a square bottom, and the opening edge is bent upward, and the fold portion is used as a hand-hold film. A handbag that features cuts starting from the top edge. [Effect] When used as a storage bag for old newspapers and the like, there is an advantage that the bag body portion is easily torn, so that it is easy to take out contents such as newspapers.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a plastic bag, particularly a plastic bag that is convenient for storing newspapers.

[0002]

[Prior Art]

 Due to the simplicity of plastic bag bags, they are very widely used, and this manufacturing industry forms a huge market. As one of these plastic handbags, a very characteristic plastic handbag is proposed in Japanese Patent Publication No. 52-39342. This bag has a feature that the handbag part is initially folded over the upper part of the bag body part and that the handbag part can be pulled out and used at the time of use. The bag proposed here has the handbag film 4 attached to the outside of the opening 2 as shown in FIG. 7 and the handbag film 4 attached to the inside of the opening 2 as shown in FIG. There are two types of things. The former plastic bag is convenient for use because it can be grasped like an eagle when pulling out the bag, but it is difficult to manufacture, so it is usually a bag with the film on the inside folded. Are manufactured. The bottom of the plastic handbag proposed in the above patent publication is not a square bottom shape, but a gusset fold can be formed on this bottom to form the bottom corner by a known method. That is, if four corner bottom fusion lines are provided at the bottom and back of the gusset fold at the bottom and at the four lower corners on the left and right to form a corner bottom, the bag body becomes a rectangular parallelepiped shape, and a square or newspaper of fixed size. It becomes possible to stack and store items. By folding the newspapers you have read into these handbags in four and stacking them up, you can store the old and new things in a neatly organized manner. You can carry the old handbags as they are and discard them. It came to be used. However, the plastic bag must be removed when this old newspaper with a handbag is recycled as used paper, and the paper inside the paper is caught in the side of the plastic bag during the operation to remove it from the bag at the paper recycling plant. Even if the bag is turned upside down, it does not easily fall out, so it had the drawback of taking out the bag.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide a plastic bag which is easy to take out contents such as old newspaper from the bag having the structure shown in FIG.

[0004]

[Means for Solving the Problems]

 As a result of studying the structure of the bag in question, the present inventor can easily tear the bag by hand from the cut when the newspaper is taken out at the used paper recycling factory if the cut is made at a specific portion of the bag. The inventors have completed the present invention by finding that even with this cut, it is possible to prevent a decrease in strength when hanging a heavy bundle of newspapers.

That is, according to the present invention, a gazette fold is provided on the upper and lower sides of a long tube-shaped thermoplastic film stock, and the hand fold film is formed by cutting the central fold of the upper gusset fold, and further, the center of the opening. The upper edge corresponding to the above is punched out to separate the handbag film and the opening, and the left and right fused side edges are fused by fusing for each bag width, and the lower gusset fold is the corner bottom, and A bottom opening of the bag, which is provided with four corner fusion lines so as to divide an approximately right-angled isosceles triangle at the four lower corners at both ends of the gusset fold at the bottom of the bag. The corner-bottom fusion line is formed by fusing and fixing a pair of films on each side of the gusset fold separately for each pair, while forming the corner-bottom shape on the other hand. On the left and right upper corners of the In a handbag bag in which four handheld fusion wires are spread in a direction and the handheld film is fixed to the opening film separately on the front and back sides, at least one of the four handheld fusion wires is provided. To provide a handbag which is characterized in that a cut line is provided between the hand-held fusion line and the opposite fusion-side edge portion, and along the fusion-side edge portion, the cut line is provided downward from the opening. is there.

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

A handbag film 4 is extended from the opening film 13 on both the front and back sides by bending inward at a fold 9. The center portion of the fold line 9 has the notch 17 so that the handpiece film 4 is separated from the opening film 13. A well-known method of 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 portion 3 in a W-shaped cross section as shown in FIGS. 2 and 3, and the bottom inner film 15 is formed on each of the front and back at four corner bottom fusion lines 18 on the front and back. By separately fusing and fixing two pairs of opposing films of the bottom outer film 16, the bottom 3 of the bag portion can be formed into a square bottom shape.

According to the present invention, the opening film 13 and the hand-holding film 4 facing the four hand-welding fusion lines 5 spread downward on the left and right of the upper part of the opening film 13 and on the front and back sides. It is worn and fixed. The angle of the hand-held fusion line 5 is about 45 degrees. The length of the handbag 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 handbag film 4.

The tip 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 tip portion A bent in the horizontal direction, so that the tip of the hand-held film is damaged. I ’m not good The tip A of the fusion wire 5 of this embodiment can be bent in the horizontal direction and then further raised upward.

Further, although the hand-held fusion line 5 starts from the folded edge of the opening, when the hand-held fusion line 5 is provided inside the lower corner bottom fusion line 18 as shown in FIG. As shown in FIG. 4, the handbag film has a shape extending from the inner side surface of the bag portion, and can be hung in the shape shown in FIG. The notch C, which is a feature of the present invention, is provided between the side edge fusion section 6 and the hand-held fusion section 5 facing the side edge fusion section 6, and is provided below the opening along the side edge fusion section 6. This cut C must be provided at least at one of the four positions outside the four hand-welding fusion lines in the opening of the handbag of the present invention. It is convenient if there are cuts on the left and right of the bag so that it can be torn from either side of the bag, and if there are cuts on the front and back sides, the fusing side edge between the two cuts C in Figures 4 and 6 It is convenient to hold the top edge of the part and tear it toward you, as the strip-shaped width will tear the bag part to the bottom and make it very easy to throw out the newspaper.

The cut C can be simply cut by cutting the upper edge of the bag, but if the cut C is provided by the perforation method, the upper edge is usually connected, so from the appearance of the appearance. desirable. The length of the cut should be such that the first tear in the bag film can be made, but if it is too short, the direction of the tear runs sideways and the tear stops at the side edge fusion part, so it is necessary to stabilize the direction of the tear. About 5 cm is desirable. When the cut C is pulled from the left and right, the cut C tears and runs up to the bottom of the extension line, and the bag is completely destroyed and the newspaper, etc. of the contents can be easily taken out. That is, if it is torn greatly from the cut C, all the new paper inside can be put into the recycled paper process by turning it upside down while holding the bottom of the bag.

The action of tearing the notch C can be done by simply pulling the edge of the bag abruptly with one hand when a newspaper is contained. In this way, even though the bag portion can be easily broken from the cut line, gravity is not applied to the cut line C when the bag is suspended as shown in FIGS. 4 and 6, so that the cut line in the suspended state is suspended. There is no fear of tearing from C. Even when the handbag part comes out from the left and right edges of the bag as in the case of the bag shown in Fig. 6, although the force of pulling and lifting the both cut edges C may act toward the inside, the force is not applied in the direction of separating.

As shown in FIG. 5, the handbag of the present invention is located just above the intersection 11 of the lower corner bottom fusion line 18 and the lower edge, as shown in FIG. Those that are designed to do so are desirable. When the intersection 12 is right above the intersection 11 or slightly outside thereof, the bag portion can be hung and provided in a rectangular parallelepiped shape as shown in FIG. Then, the two handbag films 4 are attached so as to cross the bag body in parallel in the vertical direction as shown in FIG. For newspaper storage, it is desirable to lower the hand-held tape so that it crosses over the newspaper. When hanging up in this manner, the gravity is not applied to the notch C at all, so the strength of the hanging bag does not decrease.

The bag having the rectangular parallelepiped shape as described above is convenient because it can be stacked and stored in a fixed shape like an old newspaper. The handbag of this embodiment can be manufactured in a continuous bag-making process. First, while continuously pulling out a long tube-shaped film original, gusset folds are provided on the upper and lower sides thereof as shown in FIG. 3 to form a W-shaped cross-sectional structure on the upper and lower sides. The fold 8 in the upper center of this fold is continuously cut with a knife. Next, the center fold line of the upper edge is punched out to separate the handbag film 4 from the opening film edge. This notch process can be performed at any stage of the process and the order can be changed.

For example, after manufacturing the bag, it is possible to stack a number of bags and incorporate a punching step as a final step. Next, insert a metal separating plate between the upper and lower gusset folds, apply hot trowels from the upper and lower sides separately to the film pairs of the front and back gusset folds, and separately attach the fusing lines and corners of Fig. 1 or 5. Form a bottom fusion line. In these processes, it is convenient to carry out the construction of the fusing line and the corner bottom fusing line of the next bag at the same time 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 fusion line is continuous with the adjacent bag, a continuous convex wire is used so that the hot iron can be applied at the same time as the fusion of the next bag. Usually, as the hot iron, in the present invention, it is desirable to use one having a rounded tip. As shown in FIGS. 1, 5 and 6, when the corner bottom fusion line 18 intersects the side edge 6 at an angle substantially perpendicular to the side edge 6, gravity concentration is eliminated and the side edge is fused in the bag making process. At this time, even if the fusing line that should come on the boundary line is slightly shifted, the shapes of the corner bottom fusing lines of the left and right bags are the same, and the strength does not decrease even if there is an error in the fusing position, which is desirable.

As described above, the long raw film on which the corner bottom fusion line 18 and the hand-held fusion line 5 have been applied is then fused on the boundary line by applying a hot blade for each width of the bag body. Then, the bag can be obtained in a folded state as shown in FIG. 1 or 5. Finally, the cut bag C, which is a feature of the present invention, is inserted in a perforated shape between the handbag fusion line of the bag and the side edge fusion portion, whereby the handbag of the present invention can be manufactured. The notch C can be provided at four positions between the four hand-held fusion lines and the side edge fusion-bonding portion opposite thereto, and can be provided at one or three of the four places. You can

[0018]

[Effect of the device]

 When the present invention is used for a storage bag such as an old newspaper, the bag portion is easily torn, so that the contents such as newspaper can be taken out easily.

[Brief description of drawings]

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

FIG. 2 is a vertical cross-sectional view of an embodiment of the handbag according to the present invention.

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

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

FIG. 5 is a front view of another embodiment of the handbag according to the present invention.

FIG. 6 is a perspective view showing the shape of the handbag shown in FIG. 5 when used.

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

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

[Symbols in the figure]

 1 Bag Film 2 Opening 3 Bottom 4 Handhold Film 5 Hand-held Fusing Line 6 Side Edge Fusing 7 Gazette Fold 8 Gazette Fold 9 Gazette Fold 10 Gazette Fold 11 Corner Bottom Fusing Line and Bottom Edge 12 Hand-Provided 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-held fusion line tip curved part B Square bottom fusion line curved part C Cut

Claims (2)

[Scope of utility model registration request] 1. A gauzette fold is provided on the upper and lower sides of a long tube-shaped thermoplastic film stock, a central fold of the upper gusset fold is cut to form a handbag film, and the upper part corresponding to the center of the opening is formed. Cut off the edges to separate the handbag film and the opening, and fuse and fuse each bag width to form the left and right fused side edges, the lower gusset folds to the corner bottoms, and the upper to the opening. In the bottom of the bag, four corner bottom fusion lines are provided so as to divide an approximately right-angled isosceles triangle at four lower corners at both ends of the front and back of the gusset fold,
The corner bottom fusion line forms a corner bottom shape by separately fusing and fixing a pair of films for each pair of front and back sides of the gusset fold, and, on the other hand, in the vicinity of both ends of the handbag section film, In the left and right upper corners of the opening, four hand-held fusing lines extending in the direction of the left and right side edges are provided, whereby a hand-holding bag in which the hand-holding film is fixed on the front and back separately on the opening film, A cut line is provided between at least one of the four hand-held welding lines and the welding-side edge portion opposite to the hand-held welding line, and along the welding-side edge portion, a cut is provided downward from the opening. A handbag that is characterized. 2. The handbag according to claim 1, wherein the cuts are perforations.