CN106626988A

CN106626988A - Tire

Info

Publication number: CN106626988A
Application number: CN201710002520.XA
Authority: CN
Inventors: 梁泽键; 梁哲嘉
Original assignee: GUANGZHOU SOUTH CHINA RUBBER TYRE CO Ltd; Wanli Tire Ltd By Share Ltd
Current assignee: GUANGZHOU SOUTH CHINA RUBBER TYRE CO Ltd; Wanli Tire Ltd By Share Ltd
Priority date: 2017-01-03
Filing date: 2017-01-03
Publication date: 2017-05-10

Abstract

The invention discloses a tire. The tire comprises a tire crown, a tire sidewall and a tire bead; the tire bead comprises a reinforced layer, a rubber wrapping layer, a steel wire ring, supporting rubber, a tire body layer and a steel wire ring winding layer; the rubber wrapping layer wraps the steel wire ring and the outer side of the supporting rubber; the outer end point of the rubber wrapping layer is located outside the supporting rubber; the inner end point of the rubber wrapping layer passes through the bottom of the steel wire ring and extends to the inner side of the supporting rubber; the tire body layer is wrapped on the outer side of the rubber wrapping layer; the outer end point of the tire body layer is located on the outer side of the rubber wrapping layer and wraps the outer side of the supporting rubber; the reinforced layer wraps the outer side of the tire body layer; the position of the outer end point of the reinforced layer and the positions of the end points of the tire body layer are staggered in the radial direction; and the inner end point of the reinforced layer is located at the bottom or on the inner side of the supporting rubber. According to the tire, friction between the steel wire ring and the tire body layer can be buffered when the tire bears loads, and the performance of the tire bead is improved.

Description

A kind of tire

Technical field

The present invention relates to tyre technology, more particularly to a kind of tire.

Background technology

It is well known that tire is the annular elastic rubber product rolled in various vehicles or the ground connection mechanically assembled. It is typically mounted in alloy rim, vehicle body can be supported, buffer foreign impacts, realizes the contact with road surface and ensure the traveling of vehicle Performance.

At present, for the tyre bead of radial, either the tubed tyre installed in 5 ° of wedged bottom wheel rims is still installed Tubeless tyre on 15 ° of drop center rims, its tyre bead typically twines cloth or film using in the circle nylon of wire loop surface wrap one Structure.But this canoe is easily caused wire loop bottom and space occurs, cause tyre bead portion material skewness.

The content of the invention

It is an object of the invention to provide a kind of tire, the tire can strengthen its load-carrying properties and durability, extend tire Service life, improve traffic safety.

For achieving the above object, the present invention provides a kind of tire, including crown, sidewall and tyre bead, and the tyre bead includes Enhancement layer, encapsulated layer, wire loop, support glue, body piles and bead winding layer；

The encapsulated layer is wrapped in the outside of the wire loop and the support glue, and the outer end point of the encapsulated layer is located at institute The outside for supporting glue is stated, the interior end points of the encapsulated layer bypasses the wire loop bottom and extends to the inner side of the support glue；

The body piles are wrapped in the outside of the encapsulated layer, and the outer end point of the body piles is located at the outer of the encapsulated layer Side, and it is wrapped in the outside of the support glue；

The enhancement layer is wrapped in the outside of the body piles, the end points of the outer end point of the enhancement layer and the body piles Position is radially staggered, and the interior end points of the enhancement layer is located at the support glue bottom or inner side.

Relative to the tire that above-mentioned background technology, the present invention are provided, mainly including crown, sidewall and tyre bead, tyre bead bag Enhancement layer, encapsulated layer, wire loop, support glue, body piles and bead winding layer are included, bead winding layer is closely wound in steel wire The periphery of circle, the periphery of bead winding layer is followed successively by encapsulated layer, body piles and enhancement layer；As can be seen that the core of the present invention It is to increase by one layer of U-shaped encapsulated layer in the outside of wire loop and support glue, and then can effectively fills up wire loop bottom and tire Space between body layer, so as to friction of the buffering tyre when carrying between wire loop and body piles, lifts the performance of tyre bead.

Preferably, the enhancement layer is specially steel cord layer, and the encapsulated layer is specially nylon cord layer.

Preferably, the cross section of the wire loop is in quadrangle, hexagon, circle and ellipse.

Preferably, it is described to support glue to be specially by a kind of support glue-line of rubber extrusion forming.

Preferably, it is described to support glue to be specially by the support glue-line of at least two rubber extrusion formings, and the support glue The big end of layer is harder rubber, and the small end of the support glue-line is softer rubber.

Preferably, the inclined of the relatively described tire of the steel cord arragement direction of the enhancement layer；It is described encapsulated The inclined or parallel of the relatively described tire of cord arragement direction of layer.

Preferably, incline between the steel cord of the enhancement layer and the cord of the encapsulated layer and intersect or parallel arrangement.

Preferably, the outer end point of the enhancement layer be located at the body piles the outer end point on or under.

Preferably, the outer end point of the encapsulated layer is located under the outer end point of the body piles.

Description of the drawings

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis The accompanying drawing of offer obtains other accompanying drawings.

The structural representation of the tire that Fig. 1 is provided for the first embodiment of the invention；

The structural representation of the tire that Fig. 2 is provided for second embodiment of the invention；

The structural representation of the tire that Fig. 3 is provided for the third embodiment of the invention.

Wherein：

1- crowns, 2- sidewalls, 31- enhancement layers, the encapsulated layers of 32-, 33- wire loops, 34- support glue, 35- body piles, 36- steel The encapsulated layer of wire ring.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied as The present invention is described in further detail for mode.

Refer to Fig. 1, Fig. 2 and Fig. 3, the structural representation of the tire that Fig. 1 is provided for the first embodiment of the invention；Fig. 2 The structural representation of the tire provided for second embodiment of the invention；The tire that Fig. 3 is provided for the third embodiment of the invention Structural representation.

For convenience of explanation, the outer end point for occurring below, refers to Figure of description as reference, in Figure of description Keep left the end points of side, and interior end points refers to the end points in Figure of description on the right side.

The present invention provides a kind of tire, mainly includes crown 1, sidewall 2 and tyre bead, as shown in Figure of description 1.

Crown 1 generally includes tyre surface and crown reinforcement；Sidewall 2 makes crown 1 radially inwardly extending；Crown 1, sidewall 2 And the position relationship of tyre bead may be referred to prior art, repeat no more herein.

The core of the present invention is that tyre bead includes enhancement layer 31, encapsulated layer 32, wire loop 33, support glue 34, body piles 35 With bead winding layer 36, as shown in Figure of description 1 to accompanying drawing 3.Bead winding layer 36 is closely wound in wire loop 33 Periphery, and the outside of bead winding layer 36 wraps successively encapsulated layer 32, body piles 35 and enhancement layer 31, and also set up support Glue 34 is brought into close contact with enhancement layer 31, encapsulated layer 32, body piles 35 and bead winding layer 36.

Enhancement layer 31 can the substantially U-shaped outside for being wrapped in bead winding layer 36, supporting glue 34 and body piles 35, plus The outer end point of strong layer 31 is radially staggered with the endpoint location of body piles 35, and the interior end points of enhancement layer 31 is located at the downside for supporting glue 34 Or inner side, the end points of body piles 35 is located at the bottom of bead winding layer 36, to overturn mode wrapped wire circle 33 and wire loop Winding layer 36, its end points anti-package is to the outer wall for supporting glue 34.

Encapsulated layer 32 can substantially it is U-shaped be wrapped in wire loop 33 and support glue 34 outside, the outer end point of encapsulated layer 32 Positioned at the outside for supporting glue 34, the interior end points of encapsulated layer 32 bypasses the bottom of wire loop 33 and bead winding layer 36 and extends to Support the inner side of glue 34；That is, the encapsulated layer 32 that the present invention increases can bypass the bottom of wire loop 33 and bead winding layer 36 And the inner side for supporting glue 34 is extended to, and wire loop and the friction of carcass when tire is carried are reduced, improve the use longevity of tire Life and traffic safety.

Because in the prior art, tyre bead typically encloses the knot that nylon twines cloth or film using in wire loop surface wrap one Structure, wire loop bottom easily produces space, causes abnormal damage when using, it is difficult to meet performance of the tire under overload condition Require.And nylon twines the complex procedures of cloth, complex steps cause production cost high.Herein on the basis of enhancement layer 31 Encapsulated layer 32 is further added by, enhancement layer 31 can be steel cord layer, and encapsulated layer 32 can be nylon cord layer；It is arranged such, utilizes Encapsulated layer 32 is capable of the bottom space of preferential filler wires circle winding layer 36, reduces the friction of tyre bead portion when tire is carried, and enters And lift the performance of tyre bead, and bead winding nylon cord fabrics/film operation can be reduced, play improve production efficiency, The effect of optimization personnel depaly, so as to reduce cost.

The cross section of wire loop 33 could be arranged to hexagon, quadrangle, circle or ellipse, and no matter which wire loop 33 is Planting shape is all for the purpose of playing and strengthen tyre bead intensity and rigidity, it is ensured that tire is firmly anchored on wheel rim.

Set-up mode for supporting glue 34, support glue 34 can be by one or more rubber extrusion forming；When support glue 34 by various different rubber extrudings when being formed, and supports the harder rubber in big end of glue 34, supports the small end use of glue 34 softer Rubber, be more suitable for the distribution of force of tire, improve the service life and traffic safety of tire.

In the present invention, enhancement layer 31 can use the steel cord of 3+9 × 0.22+0.15 structures, and arrangement density is 60 pieces/point Rice, cuts 30 degree of angle, cuts width 90mm.Encapsulated layer 32 can be using the nylon cord of 930D/2 structures, and density of arranging be 94 pieces/decimeter；90 degree of angle is cut, width 60mm is cut；Enhancement layer 31 adopt steel cord layer used by steel cord can be The steel cord of radial, the structure of the steel cord of radial can be steel cord listed in GB/T11181.

The present invention more preferably, the inclined of the steel cord arragement direction opposing tire of enhancement layer 31；It is encapsulated The inclined or parallel of the cord arragement direction opposing tire of layer 32.The curtain of the steel cord of enhancement layer 31 and encapsulated layer 32 Intersection or parallel arrangement can also be inclined between line.In addition, the outer end point of enhancement layer 31 is located at the outer end point of body piles 35 On or under.Certainly, according to actual needs, the outer end point of encapsulated layer 32 may be located on body piles 35 the outer end point it Under.

Figure of description 2 shows the tire having on inner tube of a tyre wheel rim for being fitted in 5 ° of seat angles；Figure of description 3 shows matches somebody with somebody The tire being mounted on the tubeless rim at 15 ° of seat angles.

The scope of the bcad seats angle beta of above-mentioned tire is between 0 ° to 30 °；Preferably, it is to be equipped with bcad seats angle for 5 ° or 15 ° The tire of standard rim, can for example be fitted in 5 ° of seat angles has on the tubeless rim at inner tube of a tyre wheel rim or 15 ° of seat angles.

Tire provided by the present invention is described in detail above.Specific case used herein is to the present invention's Principle and embodiment are set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core Thought.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, also Some improvement and modification can be carried out to the present invention, these are improved and modification also falls into the protection domain of the claims in the present invention It is interior.

Claims

1. a kind of tire, including crown (1), sidewall (2) and tyre bead, it is characterised in that the tyre bead include enhancement layer (31), Encapsulated layer (32), wire loop (33), support glue (34), body piles (35) and bead winding layer (36)；

The encapsulated layer (32) is wrapped in the outside of the wire loop (33) and support glue (34), the encapsulated layer (32) The outer end point is located at the outside of support glue (34), and the interior end points of the encapsulated layer (32) bypasses the wire loop (33) bottom simultaneously Extend to the inner side of support glue (34)；

The body piles (35) are wrapped in the outside of the encapsulated layer (32), and the outer end point of the body piles (35) is located at the bag The outside of glue-line (32), and it is wrapped in the outside of support glue (34)；

The enhancement layer (31) is wrapped in the outside of the body piles (35), the outer end point and the carcass of the enhancement layer (31) The endpoint location of layer (35) is radially staggered, and the interior end points of the enhancement layer (31) is located at support glue (34) bottom or inner side.

2. tire according to claim 1, it is characterised in that the enhancement layer (31) is specially steel cord layer, the bag Glue-line (32) is specially nylon cord layer.

3. tire according to claim 2, it is characterised in that the cross section of the wire loop (33) is in quadrangle, six sides Shape, circle and ellipse.

4. tire according to claim 2, it is characterised in that the support glue (34) be specially by a kind of rubber extruding into The support glue-line of type.

5. tire according to claim 2, it is characterised in that the support glue (34) is specially and is squeezed by least two rubber Go out the support glue-line of shaping, and the big end of the support glue-line is harder rubber, the small end of the support glue-line is softer Rubber.

6. the tire according to Claims 1 to 5 any one, it is characterised in that the steel cord row of the enhancement layer (31) The inclined of the relatively described tire in cloth direction；The footpath of the relatively described tire of cord arragement direction of the encapsulated layer (32) Incline to direction or parallel.

7. the tire according to Claims 1 to 5 any one, it is characterised in that the steel cord of the enhancement layer (31) with Incline between the cord of the encapsulated layer (32) and intersect or parallel arrangement.

8. the tire according to Claims 1 to 5 any one, it is characterised in that the outer end point position of the enhancement layer (31) On the outer end point of the body piles (35) or under.

9. tire according to claim 8, it is characterised in that the outer end point of the encapsulated layer (32) is located at the body piles (35) under the outer end point.