JP2000310092A - Insect net for screen door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity and to reduce cost by connecting together the sides of adjoining net base bodies through a connecting yarn constituted of the other filament easier bendable than a filament constituting the net base body, and forming a pleat on the connecting part. SOLUTION: The sides of adjoining net base bodies 4A are easily bendably connected together with connecting yarn constituted of the other filament 8 softer than the filament 8 constituting the net base body 4A, and a pleat 6 is formed on the part. Accordingly, even if the net base body 4A is formed out of filament 8 of suitable hardness durable to wind pressure, at opening/ closing operation, smooth bending operation for expansion or contraction is possible. The warp and the woof are crossed by braid and a net 4 having lattice structure of firm combination is formed. Hereby, spreading or cut-off of the network is restrained to propagate, a stable net 4 such as a screen can be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insect net for an insect screen, which can be extended and contracted in an accordion type by applying a large number of pleats.

[0002]

2. Description of the Related Art Insect repellent nets, which are stretchable in an accordion style by applying a large number of pleats, are obtained by weaving or knitting warp yarns and weft yarns using yarns made of polyester fiber, polypropylene fiber and the like. Warp yarns and weft yarns, or knitting yarns, which are formed and constitute the net, are conventionally manufactured as a uniform net by the same weaving or the same knitting with the same thickness and the same hardness. General.

[0003] By the way, the net base constituting the plane portion between the pleats in the accordion-type telescopic insect net is required to have a certain degree of resistance to wind pressure. The bending flexibility required for the smooth expansion and contraction operation is required. However, as in the past, the insect-preventing net, which was formed uniformly with threads of the same thickness and the same hardness,
In the pleating process, it is necessary to apply a special heat treatment to the pleated part, and even without processing, it is necessary to consider the delicate molding temperature, and in any case, due to the heat treatment for forming the pleated Not only is it difficult to increase the production speed of the net, but also the production loss is large, and this pleating process results in a problem that the insect-proof net becomes expensive. In addition, due to the hardness of the insect repellent net, if it is difficult, the opening and closing operation of the net becomes heavy, and if it is soft, the net may swell due to the effect of wind pressure. Has been pointed out.

[0004]

SUMMARY OF THE INVENTION The technical problem of the present invention is to provide an insect net having a moderate hardness capable of withstanding wind pressure and capable of bending operation for smooth expansion and contraction during opening and closing operations by heat treatment. An object of the present invention is to eliminate the need for special and subtle steps such as a pleating process, thereby enabling more efficient production, and at the same time, providing the net at a lower cost.

[0005]

In order to solve the above-mentioned problems, a first insect screen net for a screen door according to the present invention comprises a narrow and long net base member divided by a large number of pleats, which are alternately formed in the pleats. An insect repellent net that can be stretched in an accordion style by being folded in the opposite direction, and the side of the adjacent net base is separated from a different yarn that is easier to bend than the yarns constituting the net base. And a pleat is formed at the connection portion.

In a second insect door net for a screen door according to the present invention, the side of the adjacent net base is made to communicate with a part of the yarn constituting the net base between the net bases, and the remainder is formed. It is characterized in that it is connected by a connecting yarn made of a different yarn which is easier to bend than the yarn constituting the net base, and the pleat is formed at the connecting portion.

In the first and second insect screen nets for screen doors, the connecting yarn for connecting the sides of the adjacent net base is formed of a softer or smaller diameter than the yarn constituting the net base. It is preferable that

Further, a third insect net for a screen door according to the present invention is a connecting member comprising a yarn having a hardness equal to or more than that of the yarn constituting the net base between the adjacent sides of the net base. , The net bases are rotatably connected to each other, and the pleats are formed at the connecting portions thereof. The folded portion of the thread formed on the side of the base body itself is rotatably connected to each other, and the pleat is formed at the connecting portion.

In the insect net for a screen door having the above structure, the sides of adjacent net bases are easily connected to bend, and the pleats are formed at these portions, so that the net bases are not hard enough to withstand wind pressure. Even when the opening and closing operation of the net is performed, it is possible to perform a bending operation for smooth expansion and contraction even when the yarn is formed with the thread provided with. Thus, the insect repellent net for screen doors according to the present invention is configured as described above, so that it is not necessary to perform special and delicate processing such as a pleating process by heat treatment on the insect repellent net. The insect net can be manufactured more efficiently and at the same time can be provided at a lower cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the overall construction of a screen insect insect net according to the present invention. This insect repellent net 4
Is applied to an insect screen that opens and closes an accordion-type expanding and contracting net by horizontal pulling.
The thread 8 having a hardness sufficient to withstand wind pressure is formed into a narrow and long net base 4A by Russell lace weaving. By folding it back, it can be expanded and contracted in an accordion style. Russell lace weaving is a process in which dozens of fibers made of synthetic resin such as polyester are combined into three yarns to form a single braid, so that each yarn 8 constituting a lattice is formed. At the intersections, as shown in detail in FIG. 2, the warp and the weft intersect by the intersection of the three braids, so that a net having a strong lattice structure can be formed. The net is hardly cut and transmitted, and a stitch can be formed accurately and stably, which is suitable for screen doors.

FIG. 3 shows a main part of the first embodiment according to the present invention. The adjacent side of the net base 4A is made of a different material softer than the thread 8 constituting the net base 4A. By connecting with the connecting yarn 10 composed of the above-mentioned thread, the portion is more easily bent than other flat portions, and the pleats 6 are formed at the portion.

In the insect net 4 for screen doors of the first embodiment having the above-described structure, the side of the adjacent net base 4A is made of a different yarn softer than the yarn 8 constituting the net base 4A. Since the connection is easily made with the connecting yarn 10 and the pleats 6 are formed at the portion, even if the net base 4A is formed of the yarn 8 having a moderate hardness to withstand wind pressure, the net At the time of the opening / closing operation of 4, a bending operation for smooth expansion and contraction can be performed. Thus, the insect screen net 4 for screen doors is configured as described above, so that the net 4 does not need to be subjected to processing requiring special and delicate considerations such as a pleating step by heat treatment.
The insect screen net 4 for screen doors can be manufactured more efficiently, and at the same time, can be provided at a lower cost.

Here, in the first embodiment, the connecting yarn 1 for connecting the sides between the adjacent net bases 4A, 4A.
0 has been described as being a softer yarn than the yarn 8 constituting the net base 4A, but is not limited thereto, and is different from the yarn 8 constituting the net base 4A. , For example, a thread having a diameter smaller than that of the thread 8, can connect the net bases 4A, 4A.

Next, FIG. 4 shows an insect net 4 for a screen door according to the present invention.
Of the second embodiment is shown. In the insect-controlling net 4 of the second embodiment, the side of the adjacent net base 14A is used to connect a part of the weft-direction yarns 18a of the yarns 18 constituting the net base 14A to the net bases 14A, 14A. The ends of the remaining weft yarns 18b located between the yarns 18a are made of different yarns that are easier to bend than the yarns 18 constituting the net base 14A. The pleats 16 are formed at the connecting portions by connecting with connecting yarns 20.

FIG. 5 shows a third embodiment of the insect net 4 for screen doors according to the present invention.
In this embodiment, the insect-controlling net 4 is formed such that a gap between the lattices 25 on the side of the adjacent net base 24A is equal to or greater than the thickness of the thread 28 constituting the net base 24A. The connecting member 30 is spirally inserted and engaged, thereby connecting the adjacent net bases 24A in a rotatable manner, and forming the pleats 26 at the connecting portion. The connecting member 30 does not need to be spiral, and the net bases 2 on both sides are not necessary.
Any person who can only connect the two net bases 24A without weaving or knitting in the 4A can be formed in any shape.

FIG. 6 shows a fourth embodiment of the insect net 4 for screen doors according to the present invention. The insect net 4 of the third embodiment is formed by folding the weft-direction yarns 38a vertically adjacent to each other on the net base 34A so as to be connected to the side of the net base 34A. A folded portion 35 is formed on the side, and the connecting net 40 made of a thread is appropriately inserted through the folded portion 35 to rotatably connect the adjacent net bases 34A. 36 is formed.

The other constructions and operations of the second to fourth embodiments are substantially the same as those of the first embodiment, so that the description thereof will be omitted.

Here, in the above embodiment, the case where the yarn constituting the net base is formed by Russell lace weave is described. However, the present invention is not limited to this. A net base consisting of yarns formed by weaving can be used. Also,
As the thread constituting the net base, not only polyester but also any other material suitable for use as an insect-proof net can be used.

[0019]

According to the insect net for nets of the present invention described in detail above, the side of the adjacent net base is made of a yarn having a structure that is easier to bend than the yarn constituting the net base. Since weft yarns are connected and pleats are formed at the connection parts, even if the net base is formed of a yarn having moderate hardness that can withstand wind pressure, a smooth expansion and contraction operation can be performed when opening and closing the net. Is possible. In addition, by configuring as described above, it is not necessary to perform a step requiring special and delicate considerations such as a pleating process by heat treatment on the insect-proof net, so that the insect-proof net can be manufactured more efficiently. At the same time, it can be provided at a lower cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a screen insect insect net of the present invention.

FIG. 2 is an enlarged front view of a main part for explaining a Russell weave structure.

FIG. 3 is an enlarged perspective view of a main part showing the first embodiment of the insect door net for screen doors of the present invention.

FIG. 4 is an enlarged perspective view of a main part showing the second embodiment.

FIG. 5 is an enlarged perspective view of a main part showing a schematic configuration of the third embodiment.

FIG. 6 is an enlarged perspective view of a main part showing a schematic configuration of the fourth embodiment.

[Explanation of symbols]

 4 Insect repellent net 4A, 14A, 24A, 34A Net base 6, 16, 26, 36 Pleated 8, 18, 28, 38 Yarn 10, 20, 40 Connecting thread 30 Connecting member 35 Folding portion

Claims (6)

[Claims] 1. An insect repellent net which is made to be stretchable in an accordion manner by alternately folding a narrow and long net base which is divided by a plurality of pleats in opposite directions in said pleats. A screen door characterized in that the side edges of the net base are connected by connecting yarns made of different yarns that are easier to bend than the yarns constituting the net base, and the pleats are formed at the connecting portions. Insect repellent net. 2. An insect-proof net which is made to be stretchable in an accordion style by alternately turning a narrow and long net base which is divided by a plurality of pleats in opposite directions in said pleats. The side of the net base is made to communicate with a part of the yarn forming the net base between the net bases, and the remainder is formed of a different yarn that is easier to bend than the yarn forming the net base. An insect net for screen doors, wherein the net is connected with a connecting thread, and the pleat is formed at the connecting portion. 3. The insect net according to claim 1, wherein the connecting yarn for connecting the sides of the adjacent net base is a softer yarn than the yarn constituting the net base. Characteristic insect screen net for screen doors. 4. The insect net according to claim 1, wherein the connecting yarn for connecting the sides of adjacent net bases has a smaller diameter than the yarns constituting the net base. Insect repellent nets for screen doors. 5. An insect repellent net which is made of a narrow and long net base defined by a plurality of pleats and which is alternately folded back and forth in said pleats so as to be able to expand and contract in an accordion type. The net bases are connected rotatably by engaging a connecting member made of a thread having a hardness equal to or greater than that of the threads constituting the net base between the side edges of the net bases, and connecting the net bases freely. An insect net for a screen door, wherein said pleats are formed in portions. 6. An insect repellent net which is made to be stretchable in an accordion type by alternately turning a narrow and long net base which is defined by a plurality of pleats in opposite directions in said pleats. An insect net for screen doors, characterized in that the folded portions of the thread formed on the side of the net substrate itself are rotatably connected to each other, and the pleats are formed at the connecting portions.