JPS6041902A - Handbag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a plus book carrying bag.

Because Plus Deck carrier bags are convenient, they are very widely used, and this manufacturing industry has formed a huge market.
As one of these plastic carrier bags, a very unique plastic carrier bag was proposed in Japanese Patent Publication No. 39342/1983. This bag is unique in that the carrying part is initially folded into the upper part of the bag body, and the carrying part can be pulled out and used. The bags proposed here have a handle film 4 attached to the outside of the opening 2 as shown in Figure 1, and a bag with the handle film 4 attached to the inside of the opening 2 as shown in Figure 2. There are two types of things.

With the former plastic carrier bag, when you pull out the handle,
Grasp the bag J: It is convenient to use because all you have to do is grab the sea urchin, but it is manufactured only by one country.

On the other hand, manufacturing a plastic carrier bag like the one shown in Figure 2 is easy.
Then cut it out at fold line 8 as shown in the figure and use it to make a bag. On the other hand, the plastic carrier bag shown in Figure 1 is first separated and then placed on the supporting surface as shown in Figure 4.
Since both side edges have to be bent outward, there is a great deal of rlAN from the soil during the process. After cutting the F1-sized Chicove-shaped film 1), bending the freely moving tip of the film is a continuous whitening process.IJ is extremely difficult.
It is lI.

In fact, despite the convenience of the plastic carrying bag shown in Fig. 1 (11), only the Plus Book carrying bag of the type shown in Fig. 2 is currently on the market.
It can be inferred that the mold shown in FIG. 1 is difficult to manufacture.

Further, in the plastic carrier bag proposed in the above-mentioned patent publication, the carrier film 4 is composed of only one film. Since the handle part film 4 is of the same quality and the same thickness as the 4-bag body film 1, the strength of the bag body part cannot be balanced, and the handle part film 4 tends to break when carrying important items. It has its drawbacks.

The present invention provides a plastic carrier bag with improved strength in the handle portion of the plastic carrier bag proposed in the 14th edition publication, and provides an improved and simpler manufacturing method for the plastic carrier bag. With the goal.

The present invention provides a carrier bag which has two carrying film tapes connected to the front and back bag films at the bottom part between the legs of the bag body composed of two rectangular thermoplastic plastic films on the front and back sides. , two pieces of the handhold film extend outward from the openings on both the front and back sides, and the lower edges are folded back again to make the handhold film a double structure. 1) Cut the center part of the handle part from the film in the center part of the n part 1), and place both ends of the holding part film at both the left and right corners of the opening on the front and back, along a diagonal line that spreads downward, on top of the opening film. It consists of a carrier bag that is fixed by fusion.

The present invention will be explained in detail with reference to drawings of embodiments.

In the plastic carrier bag shown in Fig. 5, the two rectangular films on the front and back are integrally connected via the bottom part 3, and the left and right side edges are fused by the side edge welding part 6 to form the bag. A film 1 is formed. The bag film 1 used here is not only a vertically long rectangle as shown in Fig. 31, but also a horizontally long rectangle and a square.

From the frontage film 13 on both the front and back sides, apply it to the outside at fold line 9 (5-).
Irum 4 Kaen N'k Sa 41, this is even more detailed 1
It is bent outward again at T18, so
The hand portion film 4 has a two-wheel structure.

A notch 17 in the central part of the soil part of the frontage part 2 has a cutout in the hand section history film 12, 1], and 13, and the bag can be closed by inserting your finger into the notch 17. It can be lowered. The width of the cutout portion 17 (:1, can be selected as appropriate depending on the form of the bag.

At 50 locations of the handhold fixing parts extending downward from the left and right of the upper part of the opening 2, three sheets, the handhold front film 11, the handhold back film 12, and the opening fill 1113, are fused at the front and back openings 2, respectively. ) is fixed. The angle of the obliquely fixed hand holding part 5 can be freely selected, but from a mechanical point of view, /15 degrees is preferable. The length of the handhold fixing part 5 can be increased depending on the weight of the bag body part. (1' of the handhold fixing part 5)
/ Like the width of the cut-out portion 17, it can be selected as appropriate depending on the form of the bag. ,? If the width of the left and right hand fixing parts 50 and the width of the cutout part 17 is widened, the hand part film 184 will become long (1), and if the width is shortened, the length of the hand part film 4 will be shortened. '/, Tru.

This is due to the shape of the bag body and the handle film 4. The selection should be made according to the width of the area. Usually, it is often desirable to provide the handle part 5 in a portion of the opening 2 as close to both corners as possible because the handle part 5 becomes longer.

If necessary, make a gusset fold in the bottom part 3, and fix two films, the bottom inner film 15 and the bottom outer film 16, at the square bottom welding part 18, respectively, to secure the bottom part 3 of the bag body. Can be made into a square bottom shape. The square bottom structure is a suitable bottom structure for the plastic carrying bag of the present invention in which the carrying film 40 is reinforced because the bottom part 3 is highly reinforced.

In the thus obtained plastic carrier bag of the present invention, the carrier film 4 is double-layered, and the lower edge of the carrier film 4, which is subjected to the most weight, has a crease 8, which is unique to plastic films. There are no flaws that make it easy to tear.

Another aspect of the present invention is that a long tube-shaped plastic film is provided with a zigzag fold on each bottom side symmetrically with respect to the center line, with a width corresponding to the width of the film. 1. Cut it left and right at the center line and MI +-
,, 11.17) Put 11 notes inside the long piece of folded film, and the period of the width of the bag body is 13 times 1! -T, press a hot iron from above and below the gusset 1 to the folded part of the left and right corners of the bag.
Then, on the diagonal lines extending downwards of the bag body, we fuse three films on the top and bottom, fixing both ends of the hand-carrying film to the left and right upper limits of the bag body. The handle film is separated by cutting the center part 1/l apart (11 parts), and the left and right edges of the bag body are fused together by cutting each width of the bag body. , Method for manufacturing a plus book carrier bag characterized by coloring, 1.

Next, this manufacturing method will be explained in detail using examples.

Cut a long film off (cross-section of the film as shown in Figure 7)
J becomes. 1: Fold the sea urchin into gussets. That is, the same folds are made symmetrically on the left and right sides of the center line of the dicob-shaped film. In the figure, it is folded at four folds 9 on the top, bottom, left and right, and is also folded at four folds 8.

When the bottom of the carrying bag of the present invention is made into a square bottom shape, folds 7 and 1 are formed at both ends of the Chicove-shaped film as shown in Fig. 7.
Just fold it at 0 and create a gusset fold.

The widths of the hand-pressing part surface film 11 and the hand-holding part layer film 12 are the same as the width of the hand-holding part film 4. The width of the square bottom gusset is determined by the required thickness of the bag body.

When the left and right sides of the gusset-folded tape-shaped film thus obtained are separated along the center line, two rows of long gusset-folded films are obtained, which correspond to the cross section shown in FIG. The following steps were carried out at 1°C for each of the left and right gusseted long films.

As shown in FIG. 9, while pulling out the long film, a hand 9-fixing part 5 is made continuously at the upper outer right corner of the opening 2. This is done by inserting a metal 11 note between the front and back bag films 1, and pressing a hot iron onto this plate 1 from both the top and bottom. The three sheets of hand portion front film 12, hand portion back film 12 and frontage portion film 13 are fixed at the position of the hand holding portion 5. The hand fixing part 5 is a diagonal line that extends below the bag body (7) 11: Front") 14%
(7) General l'l T-A'+ 7>.

Before or after this process of Rn l-ing the IP fixing part 5, a process of providing the notched part 17 is performed. The hand portion layer film 12 and the frontage portion film 13 are cut by this T culm. When forming a square bottom in the bag body part (), in parallel with these steps, the bottom inner film 15 and the bottom outer film 16 are fixed at both left and right corners of the bottom part 3 using the square bottom welding part 18.

Finally, for each width of the bag body, use the side edges! The plastic carrier bag of the present invention is completed by fusing and cutting at 60 locations and fusing the side edges to form a bag body.

In the process of the present invention, if the fold line 8 of the handle part of the long gusseted film cut left and right and cut 11111-10- is first stretched out, the W in FIG. 1 of the above publication is extended. The hand part is 1
A carrier bag made of two sheets of film can be easily manufactured.

The present invention makes it possible to efficiently and easily manufacture a strong plastic carrier bag that is convenient to use.
This invention is very useful for the bag making industry, which has a large market.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views of a known plastic carrier bag, and FIGS. 3 and 4 are cross-sectional views of a Chicove-like film for explaining the manufacturing process of a known plastic carrier bag. Fig. 5 is a front view of one embodiment of the plastic carrier bag of the present invention, Fig. 6 is a longitudinal sectional view thereof, and Figs. 7 and 8 are for explaining the manufacturing process of the plastic carrier bag of the present invention. 9 is a cross-sectional view of the film of
The figure is also a plan view. The symbols in the diagram are: 1; Bag film; 2; Opening; 3; Bottom; 4; Handle film;
5; Hand fixing part, 6; Side edge fusion part, 7.8, 9. "l
: Fold line, 11; Front film of the hand-kneaded part, 12; Back film of the hand-kneaded part, 13; Inter-roll part fill-off, 14; Center line,
15; bottom inner film, 16: bottom outer film, 1
7: Notched portion, 18: Welded portion for square bottom. Patent applicant Masa Matsumoto Soto Yoshiyo Patent attorney Kubo 1) Fujibe Figure 5 Figure 7 Figure 6

Claims (1)

[Scope of Claims] 1. A hand that has two film tapes connected to the front and back bag films at the upper opening of the bag body made of two rectangular thermoplastic plastic films on the front and back sides. In the bag, the two hand-carrying films extend outward from the openings on both the front and back surfaces, and the lower edges are folded back again to form a double-layered hand-carrying film. The central part was separated from the film at the center of the opening, and both ends of the handheld film were fixed by fusion on the opening film at the upper left and right corners of the front and back openings on the diagonal lines extending downward. A carrier bag featuring: 2. At the top and bottom of the long Chicove-shaped plastic film 11, four rows of set folds with a width corresponding to the width of the hand portion film are provided symmetrically with respect to the center line on the left and right sides, and at the center line. Cut this to the left and right, and put 11 notes inside each long gusset folded film, matching the period of the width of the bag. Press the hot iron onto the plate with the top and bottom of the part 1.
On the diagonal line that spreads below the bag body, fuse a total of 3 films (1 part film and 1 part film) to form the hand part film. By fixing both ends to the left and right upper limits of the bag body, and separating the central part of the bag body, the carrying film is separated from the opening. A tJ manufacturing method for a plastic push bag characterized by fusing the left and right side edges of the body.