KR20170088527A - Carcass cord fabric material and tire having the same - Google Patents

Abstract

The present invention relates to a carcass cord fabric, wherein the carcass cord fabric comprises a plurality of first carcass cord tapers and a plurality of first carcass cord tapers located apart from the first length, And a second carcass cord taper that is spaced apart by a second length greater than the first length.

Description

Carcass cord fabric and tire having same < RTI ID = 0.0 >

The present invention relates to a carcass, and more particularly to a carcass cord fabric and a tire having the same.

Among the components of the tire, the carcass forms the skeleton of the tire and functions to withstand the air pressure, load and impact inside the tire.

The carcass is embodied by a carcass cord fabric with a high resistance to heat, high strength steel or synthetic resin woven, and a certain thickness of rubber rolled on the upper and lower surfaces of the woven steel or synthetic resin.

On the other hand, in order to manufacture tires, overlapping sections occur when the carcass cord fabrics are overlapped in the process of cutting the carcass cord fabric in accordance with the carcass of the tire to be produced. However, in the overlapping section, the carcass cords of the upper carcass cord fabric and the carcass cords of the lower carcass cord fabric overlap. As a result, dent and bulge are generated in the overlapping section of the carcass cord fabric due to the difference in shrinkage force of the carcass cord.

In order to solve the above problems, a conventional carcass cord fabric to which a Sorbage cord is applied on both sides in Korean Patent Publication No. 1995-0008875 has been proposed.

Hereinafter, a conventional woven fabric made of carcass cord will be described with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of a prior art lap splice of carcass cord fabrics.

1, a conventional carcass cord fabric 1 includes a regular code warp 11 and a high-grade cell margin code warp 12 in a selvage, And a high-definition Selbee code gradient 12 are alternately arranged. This eliminates the difference in shrinkage force of the carcass cords so that dents and bulges are prevented from occurring in the overlapping section of the carcass cord fabrics.

However, as shown in Fig. 1, the conventional code yarns 1 are overlapped with the regular code warp 11 and the high-grade SBR code warp 12. Accordingly, there is still a difference in the contracting force between the overlapped regular code warp 11, the high-definition solder bit code warp 12, and the adjacent regular code warp 13, and dents and bulges are generated.

Korean Registered Patent Publication No. 1995-0008875 (Publication Date: August 09, 1995)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to prevent overlapping of carcass cords when they are overlapped with other crochet cord fabrics, thereby preventing dent and bulge And to provide a tire having the same.

In order to accomplish the object of the present invention, a carcass cord fabric according to the present invention comprises a plurality of first carcass cord tilts and a plurality of first carcass cord tilts spaced apart from each other by a first length, And a second carcass cord tilt disposed a second distance longer than the first length.

Here, the second length may be 2 to 3 times the first length.

Further, each of the plurality of first carcass cord slopes and second carcass cord slopes may be polyethylene terephthalate or rayon cord.

In another aspect, a tire having a carcass cord fabric according to the present invention comprises an inner liner, a first carcass cord fabric disposed on an outer surface of the inner liner, and a second carcass cord fabric superimposed on the first carcass cord material, Wherein the first carcass cord fabric comprises a plurality of first carcass cord gradients spaced apart by a first length and a second length longer than the first length outboard from the periphery of the plurality of first carcass cord gradients, Wherein the second carcass cord fabric comprises a plurality of third carcass cord tapers disposed apart by a third length that is the same length as the first length, And a fourth carcass cord slope disposed apart from the outer periphery of the curse cord slopes by a fourth length equal in length to the second length.

With the carcass cord fabric according to the present invention as described above, when the carcass cord fabrics are overlapped, the carcass cords are prevented from overlapping to prevent the generation of dents and bulges in the carcass cord fabric.

Also, with the tire having the carcass cord fabric according to the present invention, the occurrence of dents and bulges in all parts of the carcass cord fabrics is prevented, so that the tire is free from non-uniformity.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial cross-sectional view of a prior art overlapping engagement of carcass cord fabrics.
2 is a plan view schematically illustrating a fabric made from a carcass cord according to an embodiment of the present invention.
FIG. 3 is a plan view showing the overlapping state of fabrics made of carcass cord according to an embodiment of the present invention.
4 is a cross-sectional view taken along line A-A 'in Fig.
5 is a partial perspective view of a tire having a carcass cord fabric according to an embodiment of the present invention.
6 is a cross-sectional view taken along line B-B 'in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to illustrate the present invention in a manner that will be readily apparent to those skilled in the art, And this does not mean that the technical idea and scope of the present invention are limited. In addition, the terms " up & down " In addition, 'warp yarns' and 'weft yarns' used in the following will be referred to as 'warp yarns' in the longitudinal direction and 'weft yarns' in the width direction in the fabrics made by crossing each other at right angles according to a certain rule.

Hereinafter, a carcass cord fabric according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a plan view schematically showing a fabric made of a carcass cord according to an embodiment of the present invention, FIG. 3 is a plan view showing a state of overlapping of carcass cord fabrics according to an embodiment of the present invention, FIG. 4 Sectional view taken along the line A-A 'in Fig.

Referring to FIG. 2, a carcass cord fabric 100 (hereinafter, referred to as a carcass cord fabric) according to an embodiment of the present invention includes a plurality of first A carcass code warp 110 and a second carcass cord warp 120 disposed apart from the outer periphery of the plurality of first carcass cord warp threads 110 by a second length d2 that is longer than the first length d1 ).

Here, the second length d2 may be 2 to 3 times the first length d1. Thus, as shown in FIG. 4, when each of the carcass cord fabrics 100, 100 'is overlapped and joined together, the first carcass cord slopes 110, 110' and the second carcass cord slopes 110, The intervals between the first and second electrodes 120 and 120 'are constant.

In addition, each of the first carcass cord slope 110 and the second carcass cord slope 120 may be polyethylene terephthalate (PET) or a Rayon cord.

Alternatively, the carcass cord fabric 100 may further include a weft yarn 130 disposed across the plurality of first carcass cord warp threads 110 and the second carcass cord warp threads 120. The plurality of first carcass code warp threads 110, the second carcass cord warp threads 120 and the weft yarns 130 may be immersed in an adhesive and implemented in a sheet form.

When the rim portions of each of the carcass cord fabrics 100, 100 'are overlapped and joined together by the carcass cord fabric 100 as described above, as shown in Figure 3, The first carcass cord slopes 110 and 110 'and the second carcass cord slopes 120 and 120' of each of the carcass cord fabrics 100 and 100 'do not overlap each other. The difference in contraction forces by the first carcass cord slopes 110 and 110 'and the second carcass cord slopes 120 and 120' at all portions of the carcass cord fabrics 100 and 100 ' Thereby preventing the occurrence of dent and bulge.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a tire having a carcass cord fabric according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 5 is a partial perspective view showing a tire having a carcass cord fabric according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line B-B 'of FIG.

5 and 6, a tire 150 having a carcass cord fabric according to an embodiment of the present invention includes an inner liner 151, a first carcass cord 150 disposed on the outer surface of the inner liner 151, A second carcass cord fabric 200 'that overlies the fabric 200 and the first carcass cord material 200. Here, the first carcass cord fabric 200 includes a plurality of first carcass cord warp yarns 210 disposed apart from each other by a first length d1, and a plurality of second carcass cord yarns 210 extending from the outer side of the plurality of first carcass cord warp yarns 210 And a second length d2 that is longer than the first length d1 by a second length d2. And the second carcass cord fabric 200 'includes a plurality of third carcass cord tapers 210' that are spaced apart by a third length d3 that is the same length as the first length d1, And a fourth carcass cord slope 220 'that is spaced apart from the outer perimeter of the carcass code slopes 210' by a fourth length d4 that is the same length as the second length d2.

By the tire 150 having the carcass cord fabric according to an embodiment of the present invention having the above-described structure, the dent portion 140 is formed at every portion of the first and second carcass cord fabrics 200 and 200 ' And the occurrence of bulge are prevented, so that nonuniformity does not occur in the tire. That is, the entirety of the tire 150 having the carcass cord fabric according to the embodiment of the present invention is uniformly expanded or contracted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100, 100 ': Carcass cord fabric
110, 110 ': 1st carcass code slope
120, 120 ': 2nd carcass code slope
150: Tires with carcass cord fabrics
200: First carcass cord fabric
200 ': Second carcass cord fabric

Claims (4)

A plurality of first carcass cord ramps spaced apart by a first length; And
And a second carcass cord taper disposed outside of the plurality of first carcass cord tapers at a second distance that is greater than the first length outwardly. The method according to claim 1,
Wherein the second length is two to three times the first length. The method according to claim 1,
Wherein each of the plurality of first carcass cord slopes and the plurality of second carcass cord slopes are polyethylene terephthalate or rayon cord. Inner liner;
A first carcass cord fabric disposed on an outer surface of the inner liner; And
A second carcass cord fabric woven over the first carcass cord material,
Wherein the first carcass cord fabric comprises:
A plurality of first carcass cord ramps spaced apart by a first length; And
And a second carcass cord taper disposed outside of the plurality of first carcass cord tapers at a second distance that is longer than the first length outwardly,
Said second carcass cord fabric comprising:
A plurality of third carcass cord ramps spaced apart by a third length equal in length to the first length; And
And a fourth carcass cord tilting disposed outside of the plurality of third carcass cord tilts by a fourth length that is the same length as the second length outwardly of the plurality of third carcass cord tilts. .

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