JPH0567506B2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application This invention involves placing an object, such as a plurality of rolls of paper, into a bag made of resin film, folding the opening of the bag, and attaching tape to the top surface of the bag. This invention relates to a method of attaching a handbag of the shape of a handbag, and a resin film bag with a handbag containing objects.

b. Prior Art When carrying a bag made of resin film containing items, it is convenient to have a simple handbag on the top of the bag. Conventionally, this type of handbag is well-known as a type that uses the bag opening with the palms of the hands together, and a tape welded type. The latter was made into a handbag by folding and welding the bag opening sequentially from four sides, and then welding both ends of the resin film tape to the opposite sides of the bag opening.

c. Problems to be solved by the invention However, the above-mentioned bag opening type uses
Although the bags are highly durable, they get pinched in the hands and fingers when hanging, causing pain.Also, the opening of the bag is made long enough to accommodate a handbag, which wastes materials and increases costs.

On the other hand, with the tape welding type, the load is applied horizontally to the fingers holding it, so it does not hurt the fingers, and while it is inexpensive,
The material is thin and weak and stretches or breaks easily.

The object of the present invention is to provide a method for attaching a handbag to a resin film bag containing objects, which has only the advantages of both the bag opening type and the tape welding type, and eliminates their disadvantages. To provide a resin film bag with a handle.

d Means for Solving the Problems In the handbag attachment method according to the present invention, first, the bag opening of a resin film bag containing an item is bent inward from one side and the opposite side, respectively, and then The edges of the other side are overlapped with each other, and then the mountain-shaped folded ears formed on the left and right sides of the bag opening by folding both the one side and the other side are folded inward, respectively. The tops of both ears are overlapped with each other, and further, from the center of the bottom of the one ear to the center of the bottom of the other ear via the overlapping part of the top. Attach resin film tape.

Thus, the produced resin film bag with a carrying handle containing an object according to the present invention has a shape formed at the edges by inward bending of both one side of the bag opening and the other side opposite thereto. formed at the top by inwardly bending both of the first folded overlapping part and each ear part formed on the right and left sides of the bag opening by inwardly bending the one side and the other side. A resin attached to the second sleeve-jointed polymerized portion and a region extending from the center portion of the base of the one ear portion through the second sleeve-joint polymerization portion to the center portion of the bottom side of the other ear portion. Consists of film tape.

It should be noted that the procedure of sequentially folding and overlapping the bag openings of resin film bags filled with objects as described above is conventionally well known.
A solution to the problem was found in the relative welding of the lap joint polymerization part and the tape.

e Effect: Since the resin film tape is attached to the second fold overlapped parts that are superimposed on each other, that is, the apexes of both ears and the center of each edge, not only the tape but also both ears integrated with it are attached. Even people participate as handbags. Therefore, since it has a wide area in the horizontal direction, it is not only possible to withstand hanging for a long time without hurting the fingers holding it, but also the material is thick, strong, and durable.

f Example The procedure of the method of the present invention will be explained below with reference to FIG.

First, as shown by A, a bag 1 made of resin film is
Insert a plurality of objects, for example, roll paper 2, for example, a total of 12 pieces in 4 rows and 3 stages, into the bag, then fold one side 1a of the bag opening inward as shown in B, and then fold it inward as shown in C. The other side 1b opposite to the one side 1a of the bag opening is folded inward as shown in FIG. Part 3 is welded by heat.

By inwardly bending one side 1a and the other side 1b of the bag opening, folded ears 1 in a mountain shape are formed on the left and right sides of the bag opening.
c and 1d are formed, so as shown in FIG. The lap joint polymerized portion 4 is welded by heat.

The means for folding, overlapping, and welding the bag opening described above are all conventionally known.

In contrast, in the present invention, as shown in FIG. 3E, a resin film tape 5 having a predetermined width
are thermally welded along a region from the center of the bottom of one ear 1c to the center of the bottom of the other ear 1d via the second folded overlapping portion 4 at the top. Note that it is preferable that the tape 5 has perforation lines 6 carved in advance for each welding length to facilitate separation after welding.

As shown in FIG. 2, the handbag according to the present invention formed in this manner has the tape 5, the second lap overlapped portions 4 of both the ear portions 1c and 1d, and the center portions of each bottom side mutually. The structure is welded together.

As shown in the left end of FIG. 4, the tape 5 is successively welded to the bag 1 whose one side 1a, the other side 1b, and the ears 1c and 1d of the bag mouth have already been overlapped and welded. An example of the device is shown.

Bag 1 filled with items and sealed is transferred to conveyor 7
is carried onto a large number of small diameter rollers 8. A second conveyor belt 9 that rotates the first half of a large number of small diameter rollers 8 is in contact with the bottom surface of the small diameter rollers 8 so that the bags 1 on the rollers 8 are constantly conveyed forward. A stopper 10 for temporarily stopping the advance of the upper bag 1 at a predetermined position is provided to control and manage the supply of the bag 1.

On the other hand, the tape 5 made of resin film is
The tape is pulled out from the tape roll 12 mounted on the reel 11, and the pulled-out portion is arranged so as to come into contact with the second flap overlapped portion 4 of the bag 1. On the tape 5 pulled out from the reel 11, a perforation line processing machine 13 is used to inscribe perforation lines 6 at intervals sufficient for welding to the top surface of the bag 1 in advance.
will be established.

The bag 1 released from the stopper 10 is advanced onto the rear half of the small diameter roller 8, and is moved to the next shelf 1.
4.Have an upper loading. Above the shelf 14, an air cylinder 17 is provided at the tip of the holder 15 via a rotary actuator 16 having a rotation angle of at least 90°.
An arm 19 is provided at the tip of the rod 18, and the bag 1 on the small diameter roller 8 is fed onto the shelf 14 by displacement of the arm 19 by the cylinder 17.

In FIG. 5, 20 is a patch plate applied to the bottom of the bag 1, and 21 is a heat sealer provided on the side opposite to the patch plate.
The tape 5 is welded to the top surface of the bag 1.

At the time of this welding, only the tape 5 and the outer film (edge part) are welded, and in order to avoid welding between the inner film (first lap joint overlap part) and the outer film (edge part) due to heat. It is desirable to insert a splint for heat insulation (not shown) between both films. However, if the tape 5 is to be adhered to the outer film (edge) using an adhesive, the splint is not necessary. It is.

In front of the shelf 14 is a third conveyor belt 22 with a step, and when the front and rear bags 1, 1, . It is divided and becomes a single entity. Note that the roll 23 provided at the tip of the shelf 14 is intended to reduce the risk of falling due to the difference in level and to ensure that the perforation line 6 is broken more effectively.

g. Effects of the Invention As described in detail above, in the present invention, when attaching the tape 5 to the top surface of the bag 1, the tape 5 is transferred from the center of the bottom side of one ear part 1c to the other ear part via the overlapping part 4 at the top. Since it is attached to the part extending to the center of the bottom of the tape 5, not only the tape but also the ear parts 1c and 1d that are integral with the tape 5 have a function as a handbag. Therefore, since the surface that spreads in the horizontal direction is further expanded than before, the load acting on the fingers hanging from it is distributed, so the fingers won't hurt even when hanging for a long time, and it can also be used as a handbag. Since the functioning part is reinforced with a thick piece of tape 5 and both ears 1c and 1d integrated into one piece, the strength is sufficient and there is no risk of breakage. Furthermore, the length of the bag opening can be made shorter than that of the conventional bag opening type,
In addition, there is no need to make the length of the tape 5 so redundant as to wrap it around both sides of the bag and attach it, so that waste is eliminated, and costs can be reduced accordingly.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a resin film bag containing items, which has a handle attached by the method of the present invention. Figure 2 is a front view of Figure 1, Figure 3A,
B, C, D, and E are perspective views showing the procedure for attaching a handbag according to the method of the present invention to a resin film bag filled with objects, and FIG. FIG. 1 is a schematic front view showing one embodiment. FIG. 5 is a plan view of the right half of FIG. 4. 1...bag, 1a...one side of the bag mouth, 1b...the other side of the bag mouth, 1c and 1d...the left and right ears of the bag mouth, 2...
...Things, for example, roll paper, 3...First folding polymerization part, 4...Second folding polymerization part, 5
...Tape, 6...Perforation line, 7...Conveyor,
8... Many small diameter rollers, 9... Second conveyor belt, 10... Stopper, 11... Reel,
12... Tape roll, 13... Perforation line processing machine, 14... Shelf, 15... Holder, 16... Rotary actuator, 17... Air cylinder, 18... Rod, 19... Arm, 20... …
Back plate, 21... heat sealer, 22... third conveyor belt, 23... roll.

Claims (1)

[Scope of Claims] 1. The bag opening of a resin film bag containing an object is bent inward from one side and the opposite side, and the edges of the bag opening on the one side and the other side are folded together. The mountain-shaped folding ears formed on the left and right sides of the bag opening by bending both the one side and the other side are folded inward, respectively, and the tops of the two ears are folded together. overlapping, and attaching a resin film tape to a region extending from the center of the bottom of the one ear through the overlapping portion of the top to the center of the bottom of the other ear; How to attach a handbag to a resin film bag filled with items. 2. The method according to claim 1, wherein either or both of the overlapping parts are adhered to each other in order to maintain the overlapping state of the edge part and the top part. 3. A first folded overlapping part formed at the edges of one side of the bag opening and the other side opposing it by inward bending, and the inside of said one side and the other side. a second folded overlapping part formed on the top of each ear by bending both ears inward; and a center of the bottom of said one ear. a resin film tape attached to a region extending from the upper part to the center part of the bottom of the other ear part via the second lapel joint polymerization part, and a resin film bag with a handle.