JPH0665878A - Sewing structure of continuous material having large diameter and sewing device therefor - Google Patents

Abstract

PURPOSE:To obtain a sewing structure having extremely high integration strength, capable of simply sewing a continuous material having a large diameter. CONSTITUTION:Integration positions of a draw ribbon 1 as, a continuous material of a large diameter are sewed with machine sewing thread 2. The sewing device in the title consists of approximately rectangular both side plates 5 set side by side, a connecting plate 6 for fixing both the side plates 5, a head 4 composed of a strut 7 uprightly stood on the top of the connecting plate 6 and a yarn feeding finger 8 vertically movable between the both side plates 5 by cooperation with the head 4. The integration positions of the continuous material having a large diameter are piled, introduced into a space between both the side plates 5, pressed by the yarn feeding finger 8 and sewed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a large diameter suitable for a drawstring for dogs, a rope for mooring vessels, a rope for lifting heavy objects by a crane, a safety rope for construction or mountain climbing. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing structure for scales and a sewing device therefor.

[0002]

2. Description of the Related Art Conventionally, it has been known that a large-diameter long object knitted with synthetic fibers such as nylon and polypropylene is covered with leather or the like after its ends are bound in a ring shape by heat welding.

[0003]

However, since the drawstring manufactured by the above-mentioned conventional fixing method has a large thickness, the adhesive strength of the heat-welded portion is weak, and the skill of heat-welding is required, and the welded portion is Since it is covered with leather or the like, the process is complicated, and the conventional sewing machine has a problem that it cannot be sewn.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a sewing structure which has a very high binding strength and can be easily sewn, and a sewing device therefor.

[0005]

In order to achieve the above object, a first invention relates to a sewing structure, in which a large-diameter elongated object is folded back and bonded to each other to form a ring shape.
Characterized in that the binding point is sewn with a sewing thread,
A second aspect of the present invention relates to a sewing device, which has substantially rectangular side plates arranged side by side with a space therebetween, a connecting plate for connecting and fixing the upper end portions of the both side plates, and the standing plate on the upper surface of the connecting plate. A head for feeding a large-diameter long object consisting of a pillar and a bottom end formed into a laterally long plate in a direction traversing the both side plates,
The present invention is characterized in that it serves as a yarn feeding finger that cooperates with the head in which a supporting rod is provided upright at the rear end portion of the upper surface of the plate body and moves vertically between the both side plates.

[0006]

[Operation] Since a large-diameter long object is bound by the sewing thread, the binding strength is extremely high and it looks good.

Further, since the head is composed of substantially rectangular side plates arranged side by side at intervals, and the lower end portion of the yarn supplying finger is formed in a horizontally long plate body, a large-diameter long product is provided on both sides thereof. It is pressed by the plate and the plate body and is securely sewn and bound.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the sewing structure of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a dog pull cord which is a long object, and the pull cord 1 is a large-diameter braid made of synthetic fiber such as nylon or polypropylene, and the tip portion 1a of the pull cord 1 is cut obliquely and folded back. Is formed into a ring 3, and the tip portion 1a is formed.
The binding portion 1b is sewn with the sewing threads 2 and 2.

Therefore, the sewn portion 1b is firmly bound, does not come off, and has a good appearance.

Next, one embodiment of the drawstring sewing apparatus of the present invention will be described with reference to FIGS.

FIG. 3 shows a head for feeding the large-diameter long object, and the head 4 has side walls 5 of substantially rectangular shape arranged side by side.
5, a connecting plate 6 for connecting and fixing the upper end portions of the both side plates 5, and a column 7 standing on the upper surface of the connecting plate 6,
The supporting column 7 has a groove 7a and an opening 7b, and at least one lower surface of the both side plates 5 has a serrated restraining portion 5a.
Are formed.

FIG. 4 shows a yarn supplying finger 8 which moves in cooperation with the head 4 and moves up and down between the side plates 5, and the yarn supplying finger 8 is shown.
Is a support rod 9 having a hollow cylindrical shape at the top, a set screw 12 screwed into a screw hole 11 formed in a side surface of an upper portion of the support rod 9, and a laterally elongated laterally projecting end portion of the support rod 9. Of the plate body 10, the front portion of the plate body 10 is formed on the inclined surface 10b, and the needle hole 10a is provided.

Next, an example of use of the present invention will be described with reference to FIG.

First, the groove 7a of the head 4 is fitted into the lower end of the guide rod 14 hanging from the unillustrated industrial sewing machine main body, and the head 4 is screwed through the opening 7b by the stop screw 7c.

At this time, the head 4 is screwed so as to come into contact with the upper surface A of the sewn portion of the sewing machine body with an appropriate pressure.

Next, the needle bar 16 hanging from the main body of the sewing machine.
The supporting rod 9 of the yarn supplying finger 8 is inserted into the lower end of the restraining rod 15 which cooperates with and is screwed by the set screw 12.

Next, a long object having a large diameter to be sewn, for example, a drawstring 1
After being folded back and overlapped with each other, the head 4 is inserted and placed between the both side plates 5 and 5, and the yarn supplying finger 8 is moved downward to move the yarn supplying finger 8 by the plate body 10 and the inclined surface 10b. When 1 is pressed and the sewing machine is operated, the drawstring 1 is restrained by the side plates 5 and 5 of the head 4 on either the left or right side, and cooperates with a transfer claw in the sewn portion A (not shown) to move the arrow. Move in the direction.

Thus, the drawstring 1 can be firmly sewn on the sewing needle 13 without bending or breaking. Here, reverse stitching is carried out at the start end and the end of the sewing point.

When the drawstrings 1 have different diameters, the gap between the side plates 5 and 5 of the head 4 and the plate body 1 of the yarn supplying finger 8 are provided.
Different sizes of 0 may be used.

[0021]

As described above, according to the first aspect of the present invention, since the binding portion of the large-diameter long object is sewn with the sewing thread, the binding strength is extremely large and the durability is great. The present invention can be applied to various types of ropes for mooring of ships and the like, ropes for lifting heavy objects by cranes, safety ropes for construction or mountain climbing, and according to the second invention, substantially rectangular parallelepipeds. Of both side plates, a connecting plate for connecting and fixing the upper end portions of the both side plates, a head that is provided upright on the upper surface of the connecting plate, and a plate body that is horizontally long in the transverse direction within the both side plates. Since a large-diameter long object is sewn with a sewing thread by means of a sewing device equipped with thread-feeding fingers in which a supporting rod is erected at the rear end of the upper surface of the plate body, the large-diameter long The scale can be easily sewn, and the sewing device has a simple structure, which makes it suitable for conventional industrial sewing machines. It has an effect that can be attached to.

[Brief description of drawings]

FIG. 1 is a plan view of a sewing structure according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a perspective view of a head of the sewing device of the present invention.

FIG. 4 is a perspective view of a yarn supplying finger of the sewing device of the present invention.

FIG. 5 is a perspective view showing a usage state of the sewing device of the present invention.

[Explanation of symbols]

 1 Drawstring 2 Sewing thread 4 Head 5 Side plate 6 Connecting plate 7 Strut 8 Threading finger 9 Support rod 10 Plate

Claims (3)

[Claims] 1. A drawstring formed by folding back ends of a large-diameter long object and binding them to each other to form a ring shape, wherein the binding points are sewn with a sewing thread. The sewing structure of the object. 2. A head for feeding the large-diameter long object,
It is characterized in that it is composed of substantially rectangular side plates arranged side by side at intervals, a connecting plate for connecting and fixing the upper end portions of the both side plates, and a pillar standing on the upper surface of the connecting plate. A sewing machine for long and long objects. 3. The lower end portion of the yarn supplying finger that moves the head in a vertical direction between both side plates is formed into a plate body that is horizontally long in a direction traversing the inside of both side plates, and the upper surface of the plate body is The sewing machine according to claim 2, wherein a supporting rod is provided upright at the rear end portion.