GB2117418A

GB2117418A - Fabric and tubular article using said fabric

Info

Publication number: GB2117418A
Application number: GB08307756A
Authority: GB
Inventors: Akihiko Izukura
Original assignee: HINAYA KK
Current assignee: HINAYA KK
Priority date: 1982-03-19
Filing date: 1983-03-21
Publication date: 1983-10-12
Also published as: GB8307756D0

Abstract

A fabric is woven from warp ends 1, weft threads 4 and oppositely inclined threads 2, 3. The fabric is tubular and may be embedded in synthetic resin. <IMAGE>

Description

SPECIFICATION Fabric and tubular article using said fabric The present invention relates to novel fabric.

More particularly, the invention relates to fabric having improved weave structure in which obliquely fed yarns are used, and tubular articles which contain the fabric in its resin-made wall.

Conventional weave structure including obliquely fed yarn, consists of two kinds of oblique yarn which cross each other, and of weft which crosses the two yarns at their cross, that is, known fabric is formed of three axial structures which consists of two kinds of oblique yarns and weft, as has been disclosed in Japanese examined Utility Model Publication No. 11573/1970 and Japanese examined Patent Publication No.

15751/1971.

In these conventional weave structures the crossing angle between yarns is approximately 60 degrees, as is clear from drawings attached to the publications mentioned above. Tubular articles which use fabric of this type, naturally include the fabric of these three axial structures, in their synthetic resin wall.

The present invention is based on the discovery that the strongest weave structure is obtained when the crossing angle between yarns in fact is 45 degrees.

According to the inventoin, one new warp is incorpoated into the conventional weave structure, resulting in providing four axial structures.

Consequently, the principal object of the preferred form of the invention is to provide fabric which is improved in strength to pressure or power from all directions, and which is improved in flexibility and durability.

Another object of the preferred form of invention is to provide a novel tubular article of synthetic resin in which the four axial fabric is embedded. Further objects and advantagees of the present invention will be clear from the description hereinafter.

According to the invention a novel fabric is provided of which structure consists of two kinds of oblique yarn crossing on parallel warp, and of weft fed between crossings.

The fabric of the invention can be used not only for general clothes but also for industrial use such as cover for pipes and wires. Warp, oblique yarn and weft may be formed of any suitable material including natural or synthetic yarn material, FRP, CFRP or their mixtures. In particular, warp or FRP or CFRP material, as core yarn, is advantageous for reinforcing the total fabric structure.

The fabric of the invention may be used in a form of plain structure or of tubular structure in which weft is fed in a loose spiral manner.

An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, wherein.~ Fig. 1 is a weave structure of the fabric of the invention; Fig. 2 is an enlarged view of a part of Fig. 1; Fig. 3 is a perspective view of tubular fabric; Fig. 4 is a perspective view, partially cut out, of a tubular article in which the fabric of tubular form shown in Fig. 3 is embedded; Fig. 5 is a cross-sectional view, along line V-V of Fig. 4.

Fig. 1 indicates a weave structure of the fabric A of the present invention. In the fabric, reference 1 is warp, 2 and 3 are obliquely fed yarns, and 4 is weft.

As seen from Fig. 1, a plurality of warp yarns 1 are fed in parallel and two kinds of oblique yarns 2, 3 are fed obliquely on each of the warp 1. The yarns 2,2... and 3, 3... are fed respectively in parallel in such a manner that their crossings a, a' are located on warp 1 or between warp 1. If desired, the warp 1 may be located below the crossing a', or crossing a' may not be located between warp 1.

Weft 4 is fed in a manner to cross the oblique yarn 2, 3 at the position between crossings a, a'.

After the weft 4 has been fed, yarns are put close to each other.

Fig. 1 illustrates a weave structure in which the weft 4 crosses the oblique yarn only once between two crossings a, a', but the weft may cross two or more times between the crossings.

In this weave A, the oblique yarn 2, 3 crosses each other with a crossing angle of approximately 90 degrees as will be seen in Fig. 2. Further, a cross angle of 45 degrees is formed between the warp 1 and two oblique yarns 2, 3, and between the weft 4 and the yarns 2, 3, near the crossing a.

Fig. 3 shows tubular fabric A' woven from the fabric A explained with reference to Figs. 1 and 2.

The tubular fabric A' can be used in industrial field such as cover for gas pipe or electric wire, in addition to the use as belt for Japanese kimono or shawl. If desired, it can be used as plain fabric when it is opened.

Figs. 4 and 5 are a perspective view and a cross-sectional view of a tubular article B in which the tubular fabric A' is embedded. The article B is formed of synthetic resin and contains the fabric A' integrally in its wall b.

According to the invention, two kinds of oblique yarn are fed on warp which, in turn, is fed in parallel while forming the fabric. Consequently, since the oblique yarn and the weft are reinforced by the warp, the fabric produced is improved in its durability. Further, since the angle between yarns at the crossing area of two oblique yarns, that is, the cross angle of the warp and each of the oblique yarns, and that of weft and each of the oblique yarns, are all 45 degrees the weave structure is the strongest to force applied from all directions. In addition, its flexibility is also improved. The tubular article B is reinforced of its strength due to the inclusion of the tubular fabric A' and is improved in its durability.

Claims

1. Fabric characterised in consisting of parallel fed warp, two kinds of oblique yarn fed crosswise on the warp, and weft fed between crossings of the yarn.

2. Fabric according to claim 1, characterised in that a cross angle of approximately 60 degrees is formed between oblique yarns, and an angle of 45 degrees is formed between warp and oblique yams.

3. Fabric according to claim 1 or 2, characterised in that the warp as core yarn is formed of FRP or CFRP material.

4. Fabric according to any one of claims 1 through 3, characterised in that the fabric is formed into tubular form.

5. Tubular article in which the fabric according to claim 4 is embedded into its synthetic resin wall.

6. Fabric substantially as hereinbefore described with reference to the accompanying drawings.