JPS63272678A - Method for mounting handle to resin bag containing article - Google Patents

Abstract

PURPOSE:To hang an article for a long time without causing pain to hands and fingers and to enhance durability, by welding a tape made of a resin film to the top parts of both tab parts overlapped with each other and the central part of each side edge. CONSTITUTION:In welding a tape 5 to the upper surface of a bag 1, said tape 5 is welded to the part reaching the central part of the bottom side of one tab part 1d from the central part of the bottom side of the other tab part 1c through the overlapped part 4 of the top parts of both ear parts and, therefore, not only the tape but also both tab parts 1c, 1d integrated with the tape 5 have function as a handle. As a result, since the surface spreading in a horizontal direction is still more expanded and the load acting on hands and fingers hanging the same is dispersed, hands and fingers hanging the same receive no pain and, since a part functioning as a handle is reinforced by the thick part wherein the tape and both tab parts 1c, 1d are unified, strength is sufficient and the possibility of breakage is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION a) Industrial field of application This invention involves putting an object, such as a roll of multi-a (Il) paper, into a bag made of a resin film, folding the bag opening, and then folding the bag. This article relates to a method for attaching a tape-like handbag to the top surface.

b) When carrying a plastic film bag filled with conventional technology, it would be convenient if there was a simple carrying case on the top of the bag. Conventionally, this type of handbag has been well-known as a type that uses the bag opening vertically and a type that uses tape welding. A hole for insertion was made to make it into a handbag, and the latter was made by folding the bag sequentially from all four sides and welding it together.

Both ends of the resin film tape are welded to opposite sides of the bag to make it into a handbag.

C) Problems to be Solved by the Invention However, although the above-mentioned vertical bag opening type is highly durable, it hurts because fingers get stuck when hanging it, and it is necessary to open the bag opening by the amount equivalent to the size of the handbag in advance. Since the length is increased, materials are wasted and costs are high.

On the other hand, tape welding does not cause pain to the hands and fingers because the load is applied in the horizontal direction to the fingers holding the tape, and although it is a source of low cost, on the other hand, the material is thin and weak and tends to stretch or break easily.

An object of the present invention is to provide a hand-carried attachment method that has only the advantages of both the vertical bag opening type and the tape welding type, and eliminates their disadvantages.

d) Means for Solving Problems The method of attaching a handbag according to the present invention is to first bend the bag opening of a resin film bag containing an object inward from one side and the opposite side, and then fold the opening of the plastic film bag into which the object is placed. The edges of the bag on opposite sides are overlapped with each other.Then, the mountain-shaped folded ears formed on the left and right sides of the bag mouth by folding the both sides are folded inward, and the tops of both ears are overlapped with each other. In addition, a resin film tape is welded to a portion 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.

It should be noted that the procedure of sequentially folding and overlapping the bag openings of resin film bags filled with items as described above is well known.
In contrast, the present invention has found a solution to the problem in the relative welding of the overlapping part and the tape.

e) Function: Since the resin film tape is welded to the apex of both ears that overlap each other and the center of each edge, not only the tape but also both ears that are integrated with it can be used as a handbag. do. Therefore, since it has a wide horizontal spread, it is not only possible to withstand hanging for a long time without hurting the hands and fingers holding it, but also the material is thick and strong and durable.

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

First, as shown at A, insert a plurality of objects 1, for example, roll paper 2, 12 pieces in total, for example, 4 rows and 3 stages, into a bag made of resin film, and then, as shown at B, insert the bag into the bag l. Fold one side 1a inward, then fold the opposite side 1b of the bag opening inward as shown by C, and overlap its edge on the edge of the negative side 1a, and then By inwardly bending the one side 1a and the other side 1b of the bag opening to weld the joint part 3 by heat, mountain-shaped folded ears 1c and ld are formed on the left and right sides of the bag opening, as shown in the third diagram. Then, the left and right ears 1c and ld are bent inward, the tops of both ears are overlapped, and the overlapped parts 4 are welded by heat.

The means for folding the bag opening into one layer and for welding as described above are conventionally well known.

In contrast, in the present invention, as shown in FIG. 3E, a resin film tape 5 having a predetermined width is attached to one ear IC
Heat welding is carried out along a portion from the center of the bottom side of the ear portion 1d to the center of the bottom side of the other ear portion 1d via the 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.

The handbag according to the present invention formed in this way has a second
With tape 5 as shown in the figure.

The overlapped portions 4 of both ear portions IC and 1d and the center portions of the respective edges are integrally welded to each other.

As shown in the left end of Fig. 4, one side of the bag opening is already 1
An example of an apparatus is shown in which the tape 5 is sequentially and continuously welded to the bag 1 which has been welded by overlapping the other side 1b, the ear IC and ld with each other.

The bag l filled with items and sealed is conveyed onto a large number of small diameter rollers 8 by a conveyor 7. 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. upper bag 1
A stopper 10 is provided to temporarily stop the progress of the bag at a predetermined position to control and manage the supply of one bag opening.

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

The bag l released from the restraint of the stopper 10 is advanced onto the rear half of the small diameter roller 8.

Above the shelf 14, which is waiting to be carried onto the next 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°, and the cylinder An arm 19 is provided at the tip of the rod 18 of 17, and the arm 1 by the cylinder 17
Due to the displacement of 9, the bag 1 on the small diameter roller 8 is fed onto the shelf 14.

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 by the heat sealer 21.

In front of the shelf 14 is a third conveyor belt 22 with a step.
There are front and rear bags 1 connected on the shelf by tape 5,
When 1... crosses this step, the perforation line 6 is torn and separated by its own weight, and it becomes a single piece. 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 detailed above, in this invention, when the tape 5 is welded to the top surface of the bag 1, the tape 5 is welded to the top surface of the bag 1 from the center of the bottom side of one ear part IC to the other ear part through the overlapping part 4 at the top. Since the part 1d is welded to the center of the base, not only the tape but also both the ears 1c and 1d that are integral with the tape 5 have a function as a handbag. Since it has been further enlarged, it works on the fingers hanging from it.The load is distributed, so your fingers won't hurt even if you hang it for a long time.Moreover, the part that functions as a handbag is attached to both the tape 5 and The ears 1c and ld are integrated and reinforced with a thick material, so they have sufficient strength and there is no risk of breakage, and the length of each bag opening is shorter than that of the conventional vertical bag opening type. The length of the tape 5 can be made shorter, and there is no need to make the length of the tape 5 so long as to wrap it around both sides of the bag and weld it, thereby eliminating waste.

Costs can be reduced accordingly.

[Brief explanation of the drawing]

FIG. 1 has a handbag installed according to the method of the invention. A plan view of a resin film bag containing items. FIG. 2 is a front view of FIG. 1, and FIG. 3 is a perspective view showing the procedure for attaching a handbag to a resin film bag containing items by the method of the present invention. FIG. 4 is a schematic front view showing an embodiment of the handheld continuous device from the third figure to the E. FIG. 5 is a plan view of the right half of FIG. 4. 1...bag, 1a...one side of the bag opening. lb...Other side of bag opening, lc and ld...Left and right ears of bag opening, 2...Object 1
For example, roll paper, 3 and 4...overlapping parts. 5...tape, 6...mi, thin wire, 7...
... Conveyor, 8... Many small diameter rollers, 9... Second conveyor belt, 10... Stopper, l 1... Reel, 12... Tape roll, 13. ...Perforation line processing machine. 14...Shelf, 15...Holder, 16...
...Rotary actuator, 17...Air cylinder, 18...Rod, 19...Arm, 20...
...Packing board. 21...Heat sealer, 22...Third conveyor belt, 23...Roll.

Claims (2)

[Claims] (1) Fold the bag opening of the resin film bag containing the item inward from one side and the opposite side, so that the bag opening edges on the one side and the opposite side overlap each other, and by folding both the sides. Fold the mountain-shaped folding ears formed on the left and right sides of the bag opening inward, so that the tops of both ears are overlapped with each other, and the overlapping portion of the top is extended from the center of the bottom of the one ear. A method for attaching a handbag to a resin film bag containing an object, the method comprising: welding a resin film tape to the center of the bottom of the other ear via the bag. (2) The method according to claim 1, wherein each overlapping portion is welded to maintain the overlapping state of the edge portion and the top portion.