JPH07155486A - Folding edge treatment structure for curtain products - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a folding edge treatment structure for a curtain product. According to the folding edge processing structure of the curtain product of the present invention, the upper fold 1 for scooping the upper folding edge A2 and the lower folding edge A3 when the hem of the curtain A is in a double folded state. And the upper thread for scooping is sewn to the upper folding edge via the needle thread 2 or the scoop thread 3. [Effect] The present invention can provide a curtain having a high commercial value, in which the upper thread, the needle thread, etc. are not exposed on the front side of the curtain, and the beautiful curtain hem is sewn on. In addition, the double-folded portion is reliably sewn. Further, the sewing will not be loosened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding edge processing structure for curtain products.

[0002]

2. Description of the Related Art The folding edge of a conventional curtain product is shown in FIG.
As shown in FIG. 8, the folding edge processing of the curtain product, which is stitched in the width direction of the curtain, is performed with the needle thread and the bobbin thread. Therefore, the needle thread and the bobbin thread are exposed on the front and back sides of the folding edge. The following inventions are examples of prior art documents in which the folding edge is sewn via a special sewing machine such as an overlock sewing machine, a knitting thread sewing machine, and a sewn sewing machine. (1) JP-A-2-4508
No. 8 sewing machine for overlock sewing machine,
(2) Overlock sewing machine overedging type conversion device of JP-A-4-312493, (3) JP-B-58-1691
There are No. 5 lock stitch sewing machines, overlock stitch sewing machines, and (4) Japanese Patent Publication No. 58-20640 sewing sewing machines for simultaneously performing overedging and festival sewing.

[0003]

In the folding edge processing method of stitching the needle thread and the bobbin thread shown in FIGS. 7 and 8 in the width direction of the curtain, as shown in FIG. The needle thread or the upper thread and / or the lower thread are exposed on the front and back sides, respectively, which may cause problems such as a very bad appearance or a decrease in commercial value.

Further, each of the above-mentioned technical documents relates to the device or mechanism of the sewing machine, and does not refer to the sewing of the folding edge of the curtain.

[0005]

In view of the above, the present invention provides
The following configuration is adopted for the purpose of providing a beautiful curtain having excellent commercial value without exposing the upper thread or the needle thread on the front side of the folded edge of the curtain.

That is, the folding edge processing structure of the curtain product of the first invention of the present invention is for scooping the upper folding edge and the lower folding edge when the hem of the curtain is in the double folded state. The upper thread for scooping is sewn with a needle thread at the upper folding end edge.

In the folding edge processing structure for curtain products according to the second aspect of the present invention, the upper folding edge and the lower folding edge are used for lock sewing when the hem of the curtain is in a double folded state. The upper thread is sewn together, and the upper thread is sewn with a hook thread for scooping sewing the lower folding edge, and the entangled upper thread is sewn to the upper folding edge with a needle thread. It is a structure to wear.

[0008]

Next, the sewing method (operation) of the present invention will be described. First, in the example shown in FIGS. 1 to 3, the skirt of the curtain is double-folded through a trumpet device (not shown),
An upper folding edge and a lower folding edge are formed. After that, sewing is performed through a hook thread sewing machine, the upper and lower folding edges are sewn with an upper thread for scooping, and the upper thread for scooping is pressed by a needle thread for sewing the upper folding edge. As a result, the upper and lower folding edges are sewn together,
The upper thread and the needle thread are not exposed (exposed) on the front side of the curtain, and the beautiful folding edge processing of the curtain is completed.

Next, in the example shown in FIGS. 4 to 6, the skirt portion of the curtain is put in a double-folded state through a trumpet device (not shown) to form an upper folding edge and a lower folding edge. After that, sew through a sewing machine that also functions as overlock and scooping stitch, and lock the upper and lower folding edges with the upper thread for lock stitching, and entangle the hook thread for sewing the lower folding edge with the upper thread. Then, the upper and lower folding edges are connected to each other, and the needle thread in the connected state is pressed by the needle thread. As a result, the upper and lower folding edges are sewn together, and the upper thread, needle thread and hook thread are not exposed on the front side of the curtain,
The folding edge processing of the beautiful curtain is completed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, in the first invention shown in FIGS. 1 to 3, the skirt portion A1 of the curtain A is double-folded, and the upper folding edge A
2 and the lower folding edge A3. Then, the back side of the upper folding edge A2 and the back side of the lower folding edge A3 are sewn with the upper thread 1, and the upper folding edge A2 side of the upper thread 1 is entangled with the needle thread 2. As a result, the upper folding edge A2 and the lower folding edge A3 are sewn together,
Then, when the lower folding edge A3 is unfolded, the sewing of the folding end of the hem A1 of the curtain A is completed, and the back side A ″
The upper thread 1 and the needle thread 2 are exposed only on the upper side, and conversely, the upper thread 1 and the needle thread 2 are not exposed on the front side A ′.

Next, in the second invention shown in FIGS. 4 to 6,
The skirt A1 of the curtain A is double-folded to form an upper folding edge A2 and a lower folding edge A3. The upper folding edge A2 is sewn with the upper thread 1 in a lock manner, the lower thread folding edge A3 is sewn with the hook thread 3 to sew the upper thread 1, and the upper folding edge A2 of the upper thread 1 is sewn. Needle thread 2 on the side
And entangle and sew. As a result, the upper folding edge A2 and the lower folding edge A3 are sewn together. When the lower folding edge A3 is then unfolded, the sewing of the folding end of the hem A1 of the curtain A is completed, and the back surface thereof is finished. The upper thread 1, the scoop thread 3, the needle thread 3, and the needle thread 2 are exposed only to A ″, and conversely, the upper thread 1, the scoop thread 3, and the needle thread 2 are not exposed on the front side A ′.

[0012]

As described in detail above, the present invention makes the hem of the curtain into a double fold state, and the double fold is entangled with the upper thread, the needle thread or the hook thread to fold the folded edge. Because of the processing structure, there is an effect that the upper thread, the needle thread, etc. are not exposed on the front side of the curtain, the beautiful curtain hem is sewn on, and a curtain with high commercial value can be provided. Further, it has an effect that the double-folded portion is reliably sewn, and an effect that the sewn is not unraveled.

[Brief description of drawings]

FIG. 1 is a perspective view of a first invention.

FIG. 2 is an enlarged perspective view of a main part of the first invention.

FIG. 3 is an enlarged plan view of an essential part of the first aspect of the invention.

FIG. 4 is a perspective view of the second invention.

FIG. 5 is an enlarged perspective view of an essential part of the second invention.

FIG. 6 is an enlarged plan view of an essential part of a second aspect of the present invention.

FIG. 7 is a perspective view showing a conventional sewing state.

FIG. 8 is a perspective view showing a back side of a conventional sewing state.

[Explanation of symbols]

 1 Upper thread 2 Needle thread 3 Reed thread A Curtain A'Front side A "Back side A1 Hem A2 Upper folding edge A3 Lower folding edge

Claims (2)

[Claims] 1. The upper fold edge and the lower fold edge are sewn with an upper thread for scooping, and the upper thread for scooping is sewn with the hem of the curtain being in a double-folded state. A folding edge processing structure for curtain products, in which needle threads are sewn to the upper folding edges. 2. The upper fold edge and the lower fold edge are sewn with an upper thread for lock sewing when the hem portion of the curtain is in the double-folded state, and the lower fold edge is attached to the upper thread. A folding edge processing structure for a curtain product, wherein a hook thread for scooping to be sewn is entangled, and one of the entangled upper threads is sewn to the upper folding edge with a needle thread.