JPH0118618Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a textile for a chief tire used as a reinforcing material for a bead portion of a tire.

[Background technology]

The use of leno fabrics in fabrics for chauffeurs such as automobile tires is known from JP-A-49-48002. The idea is to use leno woven fabric as a woven fabric for chief chairs instead of plain woven fabric, which is prone to misalignment. By using this leno fabric, the misalignment that tends to occur in chair fabrics has been improved to some extent. However, the fabric for the above-mentioned chef is
Although the fabric is woven uniformly during weaving, arcuate or skewed patterns may occur in the fabric when it is compressed by a squeezing roller during adhesive treatment or heat set in the post-processing process. There was a problem with deformation. The use of such deformed, non-uniform fabrics not only shortens the lifespan of the tire, but may even lead to disaster during use. For this reason, the non-uniform portions had to be removed to form waste fabric. Therefore, conventional textiles for chefs made of leno textiles have low productivity and require a large number of patrol and inspection staff for process control, resulting in high man-hours.

[Purpose of invention]

This idea was developed in consideration of these circumstances, and it has an extremely uniform weave without creating arcs or skews in the fabric during adhesive treatment or heat setting, and also extends the service life of the tire. An object of the present invention is to provide a woven fabric for a tire reinforcing tire reinforcement.

[Disclosure of invention]

In order to achieve the above object, the inventors studied the causes of arcuate shapes, skews, etc. that occur in textiles for chefs. As a result, since the textiles for chefs are originally coarse-density textiles, the occurrence of deformations such as arcuate shapes and oblique lines during adhesive treatment and heat setting is mainly caused by misalignment of the edges. It turned out that this was the case. Based on this knowledge, we conducted further research on preventive measures, and found that if we decided to use a weave structure for the ear tissue that is less likely to slip, and to use a material with a finer fineness than the base texture, we found that the purpose was achieved. After confirming that it could be achieved, the idea was completed.

Therefore, this invention is a fabric for a tire reinforcing chief comprising a leno weave woven with a weft and two warps, and a selvedge woven at the end of this leno weave. The ear portion is
A leno weave woven in the same structure as the leno weave and having a finer grain warp than the leno weave; The gist of this invention is a woven fabric for a tire reinforcing chief, which is characterized by comprising a leno weave section woven with one ground warp and two gauze warps of finer fineness. This will be explained in detail below based on the drawings.

FIG. 1 is a cross-sectional view of a main part showing a bead portion of a tire in which a chief fabric is used.
As shown in the figure, the tire 1 has a bead portion 3 having a bead wire 2 inside. Bead part 3
A tire cord 4 is arranged on the outside of the
A chauffeur fabric 6 is used as a reinforcing material between the tire cord 4 and the rim 5.

In general textile technology〓Chief Fabric〓
refers to a plain woven fabric with thick threads, but in the field of tire manufacturing technology, it is used to prevent the outside of the bead portion 3 from rubbing against the flange of the rim 5 and being damaged, as shown in the figure. The reinforcing material is called ``cheafer'', and as explained in the background art section, even when leno fabric is used, it is called ``cheafer'', so in this invention, ``fabric for cheifer'' is not used. is used as a general term for textiles used as reinforcing materials for such tires, and does not mean the aforementioned chief textile, which is a plain textile with thick threads.

Figures 2 and 3 are main part weave structure diagrams showing the fabric for tire reinforcing chief according to this invention, Figure 2 is a weave structure diagram showing the surface of the fabric, and Figure 3 is the back side of the fabric. FIG.

As shown in FIGS. 2 and 3, this chief fabric 6 is composed of a ground structure consisting of a leno weave, and a selvage M consisting of a leno weave and a leno weave.

The Karami Oribe is woven using a weft Y and two warps a and b. The thread warp a is the weft thread Y
The weft yarn Y passes through the front side of the weft yarn Y
It passes through the front side of the On the other hand, the silk warp b is the weft yarn Y
The weft yarn Y passes through the back side of the weft yarn Y
It passes through the back of the The leno weave is formed by making one cycle of the leno weave structure constructed in this way. Note that in the figure, a part of the left side of the leno weave is omitted and is shown by a chain line, but the weave structure is exactly the same as described above (the same applies to FIG. 3 later).

The leno weaving section provided at the end of the selvedge section M uses three warp threads. One of the three warp yarns has a ground warp c and simply extends in a right angle direction on the surface without being intertwined with the weft yarn Y at all. The other two warps are warps d and e, which are entwined with the weft Y and the ground warp c. Karami Oribe has a special selvedge weave structure in which the weft warps d and e intersect on the front side of the ground warp C, pass behind the weft Y while sandwiching the ground warp C, and intersect again on the front side of the ground warp C. It is formed as a cycle. In the leno weave, the weft warps d and e are intertwined with the weft Y with the ground warp c interposed, so the contact pressure between the weft Y and the ground warp c and between the weft Y and the weft warps d and e is It is larger and has a structure that makes it extremely difficult for the eyes to shift.

Karami Oribe's Jikei c, Ryokokei d and e are:
A material having a finer fineness than the leno weave portions a and b forming the leno weave portion is used. The thickness of the karami warp c, karashi d and e of the karami oribe is 1/5 to 4/5 of the thickness of the karami warp a and b of the karami oribe.
It is preferable to use it within the range of . If it is less than 1/5, it will be extremely thin compared to the thickness of the leno weave, so that misalignment will occur near the edges of the leno weave, resulting in uneven weaves. On the other hand, if it exceeds 4/5, it will be thicker than the karami oribe due to the overlapping of the three jikei c, 矟子kei d and e. For this reason, for example, when applying an adhesive such as RFL (resorcinol formalin latex) using a roller to squeeze out excess adhesive, or during heat setting, the leno weave does not come into uniform contact with the roller. Therefore, the tension becomes nonuniform, and the fabric is likely to have an arcuate shape, skew, or misalignment.

The leno weave is provided between the leno weave and the leno weave. The leno-oribe forms the same leno weave structure as the leno-oribe described above by means of the warps f and g. The leno weave is necessary to eliminate the misalignment, arcuate shape, and skew of the leno weave and to make the fabric more uniform. In other words, due to the difference in the tangle structure between the tangle-oribe and the tangle-oribe, the twill warps a and b located at the extreme ends of the tangled-oribe are directed in a different direction from the twill warps a and b near the center of the tangled-oribe. This prevents the leno weave from being subjected to tension, and acts so that the tension is applied uniformly to the entire leno weave.

It is preferable to use a leno weave that is thinner than the leno weave so as not to be thicker than the leno weave. When the leno-oribe becomes thicker than the leno-oribe, a roller may be used to squeeze out the excess adhesive when applying the adhesive, or
During heat-setting, it becomes difficult for the leno weave to contact the rollers evenly. As a result, the tension applied to the fabric becomes non-uniform, and the fabric tends to become arcuate, skewed, misaligned, etc. Therefore, it is preferable that the rambling warps f and g of the karami-oribe be used in a range of 1/5 to 4/5 of the thickness of the rambling warps a and b of the karami-oribe, and It is preferable that the thickness is approximately the same as that of the base thread c, the thread warp d and e. By having such a thickness, the threads of the leno weave can be clearly distinguished from each other during weaving, and complications caused by mixing up the threads can be avoided. In addition, as for the leno-oribe and the leno-oribe, usually 1 to 3 strands of silk warp are preferably used.

As the material used for the fabric for the tire reinforcing chief fabric according to this invention, synthetic fibers such as nylon 66, nylon 6, and polyester are preferably used, and the warp threads in the leno weave are 200 each.
~1020D, the weft is preferably 400~2040D,
The warp density is preferably 15 lines/5 cm to 30 lines/5 cm. This is strong and strong, which is required for textiles for chefs.
Physical properties such as hardness and warp - warp, weft -
This is to ensure that the porosity due to the weft is in a better range, and that the strength and adhesion to rubber of the obtained textile for the chieftain are in a preferable range.

[Effect of idea]

The fabric for the tire reinforcing chief according to this invention has a special leno weave structure as mentioned above in the selvage, so that the fabric can be formed into arcuate or diagonal shapes during adhesive treatment or heat setting in the post-processing process. The weave is extremely uniform. Since the ears do not shift, clips do not come off due to tenter processing. When the chauffeur fabric according to this invention is used in tires, the service life can be significantly extended.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main part showing the bead part of a tire in which the textile for the chief tire is used, and Figs. 2 and 3 are the weave structure diagrams of the main part showing the textile for the tire reinforcement according to this invention. Fig. 2 is a weave structure diagram showing the surface of the fabric;
FIG. 3 is a weave structure diagram showing the back side of the fabric. 1... Tire, 3... Bead part, 6... Fabric for chief fur,... Karami Oribe,... Karami Oribe,... Karami Oribe, M... Ear part,
Y...Weft, a, b, d, e, f...Reel warp, c
...Geo-kei.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tire reinforcing chair comprising a leno weave woven with a weft and two warps, and a selvedge woven at the end of this leno weave. The selvedge is a woven fabric, and the selvage portion is woven in the same structure as the leno weave and has a leno weave having a finer grain than the leno weave, and is adjacent to the outside of the leno weave. 1. A fabric for a tire reinforcing chauffeur, characterized in that it consists of a weft, a leno weave woven with one ground warp having a finer fineness than the gauze warp of the leno weave, and two gauze warps. (2) The fineness of the karami oribe and the karami warp of the karami oribe is 1/5 to 1/5 of the fineness of the karami warp of the karami oribe.
The fabric for a tire reinforcing chief as claimed in claim 1 of the utility model registration claim 4/5. (3) Karami Oribe and Karami Oribe are 1 to 3
A fabric for a tire reinforcing chief as claimed in claim 1 or 2 of the utility model registration claim, having a thread warp. (4) The fabric for a tire reinforcing chair tire according to any one of claims 1 to 3 of the utility model registration claim, in which the ground warp of the leno fabric is on one side of the weft.