JPS602762A - Production of string for 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 method of manufacturing a string for a carrying bag, in which the string is attached to the upper end of the carrying bag by hooking both ends to the through-holes. In particular, the present invention relates to a method of manufacturing a strap for a carrying bag, the shoe body being a synthetic resin cord made by twisting together a plurality of strands made of stretched synthetic resin film, untwisted or twisted.

Traditionally, the above-mentioned synthetic resin strings have been attached to bags by making a knot at the tip, but this knot has the disadvantage of making it difficult to store the bag, and the method using a knot has also been proposed. Since it is impossible to mechanize and requires a large number of man-hours, it was subcontracted (outsourced) work, which caused high costs.

For this reason, the inventor of the present invention has studied and developed various hanging structures to replace the knot, and has finally succeeded in devising a string for a carrying bag as shown in FIG. .

That is, with the shoe body 2 made of loosely twisted synthetic resin films and the shoe body 2 overlapped with the shoe body 2 in the longitudinal direction, the strap of the carrying bag can be attached through the through-hole, and after passing through the hole. consists of elongated hanging pieces 9a and 9b that are caught in the longitudinal direction and cannot be passed through the holes;
The cut ends 4a and 4b of the shoe body 2 and the hooking piece 8a,
8b is fixed to the central portion in the longitudinal direction, and the string is hooked to the hole 5a.

This is a string 1 for a carrying bag, which is formed by forming 6b into an rTJ-shape (Utility Application No. 58-042703).

The inventor of the present invention was able to complete the method of the present invention as a result of intensive research aimed at inexpensively mass-producing the above-mentioned string for carrying bags.

FIG. 2 is a diagram illustrating the method according to the embodiment of the present invention according to the operating procedure. First, as shown in FIG.
The tips of each of the lobes 10σ, 106, and IOC are directed to the device according to the method of the present invention, and the tips of each of the lobes 10σ, 106, and IOC are connected to three clamping fittings that are arranged in parallel at regular intervals in the device and are movable back and forth. 11a, IIJ, llC
are respectively held and drawn to the cutting position.

The clamping fittings 11a, IIJ, and llc are operated by a piston device (not shown).

The 4-ploa, 106, and lOc are made by appropriately twisting stretched polyolefin film rope yarn to form a strand, then twisting the three strands into a Z-twist, and lightly heat welding them at appropriate locations. It is a three-strike rope made of synthetic resin film and approximately 8H thick. Such a rope is highly flexible, easy to crush by hand, and has excellent tensile strength.

The four-ply 10 (1, lQb,
10- are simultaneously cut by the hot iron wire 12 so that the length thereof becomes (L+24), and the shoe body 1312
, 13b.

13C is formed.

Shoe bodies 13σ, 13b formed in this way,
As shown in FIG. 13(b), both ends of 13c are immediately grabbed by gripping tools 14σ, 14b...14/, and while maintaining their positional relationship (parallel spacing, etc.), It is then moved in parallel to the next welding position by sliding it.

At the welding position, two latching piece strings 15σ and 15b are arranged in parallel at a predetermined interval in advance, and an ultrasonic oscillator (not shown) is placed directly above each of the latching piece strings 15σ and 15b. The noses A/(horn) 16σ, . . . 167 (omitted) are arranged in the same number as the number of welding locations in the shape of a base grid at regular intervals (horizontal and vertical intervals).

Here, the four loops 10 are attached to the hook strings 15a and 15b.
A synthetic resin film string made of the same material as σ... is used.

However, for the hanging piece, use a stiff material that is twisted more strongly than the lobes 10 (7...).The rope-shaped material for the hanging piece should be In addition, a plastic molded product made of two paper, metal or wood, etc. can be used.

The shoe bodies 13a, 13b, 13c, which have been moved in parallel from the cutting position while maintaining the spacing, are hung perpendicularly to the two parallel straps 15a, 15b, as shown in FIG. passed, each end of which is attached to a hanging piece string 15a,
15b. In this case, the polymerized portion 17a,
17b... What is the length of 17/? , and the distance between polymerized parts is D
It is.

When the superposition is completed, as shown in FIG. At the same time as the overlapping part is pressed down, ultrasonic waves are emitted from the nozzle tip. Due to the oscillation of this ultrasonic wave, the overlapped portion 17σ is formed.

. . . 17/ is welded in 1 to 2 seconds, and a so-called ladder-like body 18 is formed on a part of the hanging piece strings 15a and 15b.
is formed. After welding, the nozzle returns to its original position.

On the other hand, during the ultrasonic welding, the shoe bodies 13a, 13b
.

Gripping tools 14a, . . . 14 that were holding both ends of 13c
f removes the grip and descends to return to the original position. In the original position, the next shoe body forming operation has already taken place.

The ladder-like body 18 formed by ultrasonic welding is shown in the same figure (#
), in the next step, the hot wires 19 simultaneously cut the hanging piece strings 15σ and 15b, which are the constituent elements, at the middle (moon D) between the overlapping parts.

As shown in FIG. 1, the thus obtained product 20 has hook pieces 21 at both ends of the shoe body 13σ, 13b, L3c.
A, 216...21/ are formed into an rTJ-shaped string for a carrying bag, and according to the method of the above embodiment, three strings can be manufactured at once in just a few seconds. Further, each of the above operations is performed continuously and automatically.

In the above embodiment, an example of ultrasonic welding is used to join the overlapping portions, but the joining of the overlapping portions is not limited to this example, and may also be performed by geothermal welding, adhesive, high frequency welding, etc. Further, it goes without saying that the number of pieces produced in the -th cycle is not limited to the above six pieces.

As explained above, according to the method of the present invention, a string manufacturer can continuously mass-produce a final form of carrying bag string with a hook part within one fully automated device.

Therefore, there is no need to form a knot in a separate process from the manufacturing of the shoe body, as is the case in the past, and the shoe can be delivered to the user in its final form, even including a hook. Furthermore, the user does not have to form knots each time he or she hangs the bag, resulting in a significant cost reduction.

Furthermore, compared to the case of making knotted beads, there is no irregularity in the length or shape of the knotted beads when attached to the bag, and the final shape obtained is uniform, and the adhesive strength of the hooked portion is also uniform. Stable products are mass-produced.

In addition, if a lace material made of the same synthetic resin film as the shoe body is used for the hooking piece, it will be easier for existing lace manufacturers.
It is convenient for production technology and production management, and can further reduce costs in terms of materials.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the appearance of a string for a carrier bag manufactured by a method according to an embodiment of the present invention. FIGS. 2(σ) to 2(e) are diagrams illustrating the method according to the embodiment of the present invention according to the operating procedure. 10a, 10b, IOC・-・o-pu 13σ,
13b, 13cm...Shoe body 15σ, 15b...
String for hanging piece 16a-16/... Nozzle 18... Ladder-shaped body 12.19... Heat wire 210-21/... Holding piece

Claims (1)

[Claims] 1) A plurality of shoe bodies are simultaneously formed by cutting each of a plurality of ropes arranged in parallel at a constant interval Q into a predetermined length (L+2J), and the plurality of shoe bodies are cut at the same position. While maintaining the relationship, the shoes are moved to the joining position, and at the joining position, two rope-like hanging pieces are arranged parallel to each other at a predetermined interval (T), and each of the above-mentioned shoes is placed between the hanging pieces. The main body is hung in the form of a ladder, and both ends (l. A method of manufacturing a strap for a carrying bag, in which the hanging pieces are joined to both ends of the shoe body in an ITJ shape by cutting the overlapping parts of the hanging piece members approximately in the middle.