CN104015566A

CN104015566A - Radial tire

Info

Publication number: CN104015566A
Application number: CN201410264895.XA
Authority: CN
Inventors: 米勇龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-16
Filing date: 2014-06-16
Publication date: 2014-09-03

Abstract

The invention relates to a radial tire. The radial tire comprises a tire tread, a belted layer, a cord fabric layer and a reinforcing layer which is arranged between the belted layer and cord fabric layer, the reinforcing layer is divided into two parts which respectively start at tire beads on two sides, end at a crown part and are overlapped on the crown part. By adopting the technical scheme, the tire crown and side walls are simultaneously protected, the strength of the crown part is enhanced, and the pierce preventing property is improved.

Description

One meridian line tyre

Technical field

The present invention relates to motor tire, especially a kind of anti-radial-ply tyre puncturing.

Background technology

In radial-ply tyre, adopt increases the method for bracing ply number of plies raising tire rigidity and intensity more at present, some bracing ply reaches 6,7 layers more than, although strengthen like this tire wear performance, by contrast, sidewall performance can not get corresponding raising, more seems fragile.Some tires adopts the way that increases one deck reinforced rib, and the net structure of making at carcass outer cladding layer of steel wire or other composition fibers, makes tire entirety obtain many one decks protections, prevents from puncturing blowing out etc.But this kind of way do not reach desirable effect.

Summary of the invention

The object of the invention is the defect for prior art, a meridian line tyre is provided, by setting up special enhancement Layer, tire intensity is improved, be difficult for being punctured, be difficult for blowing out.

For achieving the above object, the invention provides a meridian line tyre, comprise tyre surface, bracing ply, carcass plies, be located at the enhancement Layer between bracing ply and carcass plies, described enhancement Layer is divided into two parts, the tyre bead place that starts from respectively both sides, ends at crown part, and overlapping at crown part.

Described two parts enhancement Layer is symmetrical structure taking circumferential line as axle, and its overlapping part accounts for 40% ~ 60% of tread width, and more suitably, overlapping part accounts for 45% ~ 50% of tread width.Overlapping partial width is excessive, can make tyre surface hardness affect too greatly traveling comfort; Width is too small, does not have the effect of protection crown.

Described enhancement Layer thickness is 3 ~ 5cm, is made up of the netted composition fiber that interweaves of high-modulus.The overlapping part of enhancement Layer is bonded as one by plastotype.

Described bracing ply is 2 ~ 3 layers.

The present invention adopts above technical scheme, and enhancement Layer is divided into two parts and overlapping at crown part, and crown and sidewall are protected simultaneously, and crown position strength increase has promoted the anti-performance that punctures.

Brief description of the drawings

Fig. 1 is the cross-sectional view of one embodiment of the invention;

Description of reference numerals:

1-tyre surface, 2-bracing ply, 31-enhancement Layer, 32-enhancement Layer, 4-carcass plies, 5-tyre bead, the overlapping part of W-enhancement Layer.

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

As shown in Figure 1, between bracing ply 2 and carcass plies 4, be provided with two parts enhancement Layer 31 and 32, be the right and left symmetry shape, one end originates in tyre bead 5 places, and the other end ends at crown part, and two parts enhancement Layer 31 and 32 is overlapping bracing ply 2 times, overlapping part accounts for 40% ~ 60% of tread width, to account for 45% ~ 50% as best, the thickness of every part enhancement Layer 31 and 32 is 3 ~ 5cm, is made up of the netted composition fiber that interweaves of high-modulus.

Be more than preferred embodiments of the present invention, but protection scope of the present invention is not limited to this.Any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and the conversion of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore protection scope of the present invention should be as the criterion with the protection domain that claim was limited.

Claims

1. a meridian line tyre, comprises tyre surface, bracing ply, carcass plies, is located at the enhancement Layer between bracing ply and carcass plies, it is characterized in that: described enhancement Layer is divided into two parts, starts from respectively the tyre bead place of both sides, ends at crown part, and overlapping at crown part.

2. radial-ply tyre according to claim 1, is characterized in that: described two parts enhancement Layer is symmetrical structure taking circumferential line as axle.

3. radial-ply tyre according to claim 2, is characterized in that: the overlapping part of described two parts enhancement Layer accounts for 40% ~ 60% of tread width.

4. radial-ply tyre according to claim 3, is characterized in that: the overlapping part of described two parts enhancement Layer accounts for 45% ~ 50% of tread width.

5. according to the radial-ply tyre described in claim 1 ~ 4 any one, it is characterized in that: described enhancement Layer thickness is 3 ~ 5cm.

6. according to the radial-ply tyre described in claim 3 or 4, it is characterized in that: the overlapping part of described enhancement Layer is bonded as one by plastotype.

7. radial-ply tyre according to claim 1, is characterized in that: described bracing ply is 2 ~ 3 layers.

8. radial-ply tyre according to claim 1, is characterized in that: described enhancement Layer adopts the netted composition fiber that interweaves of high-modulus to make.