CN203004986U

CN203004986U - Tyre bead structure

Info

Publication number: CN203004986U
Application number: CN 201220597020
Authority: CN
Inventors: 张爱林
Original assignee: Jiangsu General Science Technology Co Ltd
Current assignee: Jiangsu General Science Technology Co Ltd
Priority date: 2012-11-13
Filing date: 2012-11-13
Publication date: 2013-06-19
Anticipated expiration: 2022-11-13

Abstract

The utility model relates to a tyre bead structure which comprises a tyre side part and an inside liner, wherein a steel ring and a triangular adhesive tap are arranged at the centers of the tyre side part and the inside liner, a tyre body and a tyre bead reinforcing layer are sequentially arranged at the outer side of the triangular adhesive tape, the tyre body comprises a tyre main body part and a tyre reverse wrapping part, the tyre reverse wrapping part extends from the end part of the tyre main body part and is provided with a first reverse wrapping end point, the tyre reverse wrapping part is used for wrapping the steel ring and the end part, positioned at one end of the steel ring, of the triangular adhesive tape, the tyre bead reinforcing layer extends from the axial inner side of the triangular adhesive tape to the axial outer side of the triangular adhesive tape and is wrapped on the steel ring and the end part of the triangular adhesive tape at one end of the steel ring together with the tyre body, and the end point of one reverse wrapping end of the tyre bead reinforcing layer is a second reverse wrapping end point. The tyre bead structure is characterized in that a triangular filling adhesive is arranged between the first reverse wrapping end point and the second reverse wrapping end point. According to the tyre bead structure, the problem that gas is easily stored and also easily separated due to fewer materials between the reverse wrapping end point of the tyre bead reinforcing layer and the reverse wrapping end point of the tyre body is solved, and the bearing capacity and the service life of the tyre are increased.

Description

Tire bead structure

Technical field

The utility model relates to a kind of tire bead structure, especially a kind of tire bead structure that adopts tri filling.

Background technology

Existing wheeled car, particularly large-scale shipping load-carrying vehicle, they run quickly on express highway, and the speed of not only having relatively high expectations also requires load-carrying capacity preferably, and wherein high bearing capacity is had higher requirement to the tire bead structure of load-carrying vehicle.The key point of tire bead quality mainly contains two parts: being at first the bead structure of tire, is secondly the tire bead material selection.Tire bead structure particularly, tire bead structure reasonable in design can make the load-carrying capacity of tire obviously strengthen, and Using Life of Tyre increases, and plays the high efficiency hauling operation that Duola hurries up.

At present in each tire enterprise, tire bead structure generally is comprised of following components: inside liner 1a(is comprised of cambic horizon and air-retaining liner), tire sidewall 2a, tyre bead enhancement Layer 3a, carcass 4a, steel ring 5a, apex strip 6a.The end of described carcass 4a wraps steel ring 5a and is positioned at the end of the apex strip 6a of steel ring 5a one end, and the end of this carcass 4a wrapped end is the first anti-package end points; Described tyre bead enhancement Layer 3a is extended to the axial outside of apex strip 6a by apex strip 6a axial inboard, with carcass 4a jointly be wrapped in steel ring 5a and with the end of the apex strip 6a that is positioned at steel ring one end, the end points of tyre bead enhancement Layer 3a anti-package one end is the second anti-package end points.There is certain defective in above form: one, the anti-package end points of the anti-package end points of tyre bead enhancement Layer 3a and carcass 4a forms step, and this type of step easily causes the part to deposit gas in the tire production process, has a strong impact on the tire quality; Two, between tyre bead enhancement Layer 3a anti-package end points and carcass 4a anti-package end points, material is less makes that both adhesive powers are relatively poor easily separates.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of tire bead structure is provided, under the prerequisite that does not change the existing equipment structure, between solution tyre bead enhancement Layer anti-package end points and carcass anti-package end points, less the making of material easily deposited the easily separated phenomenon of gas, improves load-carrying capacity and the service life of tire.

According to the technical scheme that the utility model provides, described tire bead structure comprises sidewall section and inside liner, in sidewall section and inside liner center, steel ring and apex strip is set, and sets gradually carcass and tyre bead enhancement Layer in the outside of apex strip; Described carcass comprises carcass main part and carcass turnup, and the carcass turnup extends out and has the first anti-package end points from the end of carcass main part, and the carcass turnup wraps steel ring and is positioned at the end of the apex strip of steel ring one end; Described tyre bead enhancement Layer is extended to the axial outside of apex strip by apex strip axial inboard, with carcass jointly be wrapped in steel ring and with the end of the apex strip that is positioned at steel ring one end, the end points of tyre bead enhancement Layer anti-package one end is the second anti-package end points; It is characterized in that: between described the first anti-package end points and the second anti-package end points, tri filling glue is set.

The utility model has solved between the anti-package end points of the anti-package end points of tyre bead enhancement Layer and carcass less the making of material and has easily deposited the segregative phenomenon of gas, has improved load-carrying capacity and the service life of tire.

Description of drawings

Fig. 1 is the structural representation of tire bead in prior art.

Fig. 2 is structural representation of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with concrete accompanying drawing.

As shown in Figure 2: described tire bead structure comprises inside liner 1, sidewall section 2, tyre bead enhancement Layer 3, the second anti-package end points 31, carcass 4, carcass main part 41, carcass turnup 42, the first anti-package end points 43, steel ring 5, apex strip 6, tri filling glue 7 etc.

As shown in Figure 2, tire bead described in the utility model comprises sidewall section 2 and inside liner 1, in sidewall section 2 and inside liner 1 center, steel ring 5 and apex strip 6 is set, and sets gradually carcass 4 and tyre bead enhancement Layer 3 in the outside of apex strip 6;

Described carcass 4 comprises carcass main part 41 and carcass turnup 42, and carcass turnup 42 extends out and has the first anti-package end points 43 from the end of carcass main part 41, and carcass turnup 42 wraps steel ring 5 and is positioned at the end of the apex strip 6 of steel ring 5 one ends;

Described tyre bead enhancement Layer 3 is extended to the axial outside of apex strip 6 by apex strip 6 axial inboard, jointly be wrapped in steel ring 5 with carcass 4 and be positioned at the end of the apex strip 6 of steel ring 5 one ends, and the end points of tyre bead enhancement Layer 3 anti-package one ends is the second anti-package end points 31;

As shown in Figure 2, between described the first anti-package end points 43 and the second anti-package end points 31, tri filling glue 7 is set.

Tire bead described in the utility model adds tri filling glue 7 between the anti-package end points of the anti-package end points of tyre bead enhancement Layer 3 and carcass 4, facts have proved, this form makes not only that the material of 4 of tyre bead enhancement Layer 3 and carcasses is sufficient, good buffer effect is difficult for depositing gas, and increased binding force between the two, not easily separated, improved tyre bead intensity and tire capacity and life-span.The utility model has solved the segregative phenomenon of the less Yi Shengre of making of material between the anti-package end points of the anti-package end points of tyre bead enhancement Layer and carcass, load-carrying capacity and the service life of having improved tire.

Claims

1. tire bead structure, comprise sidewall section (2) and inside liner (1), in sidewall section (2) and inside liner (1) center, steel ring (5) and apex strip (6) are set, set gradually carcass (4) and tyre bead enhancement Layer (3) in the outside of apex strip (6); Described carcass (4) comprises carcass main part (41) and carcass turnup (42), carcass turnup (42) extends out and has the first anti-package end points (43) from the end of carcass main part (41), and carcass turnup (42) wraps steel ring (5) and is positioned at the end of the apex strip (6) of steel ring (5) one ends; Described tyre bead enhancement Layer (3) axially extends to the axial outside of apex strip (6) in the inboard by apex strip (6), with carcass (4) jointly be wrapped in steel ring (5) and with the end of the apex strip that is positioned at steel ring (5) one ends (6), the end points of tyre bead enhancement Layer (3) anti-package one end is the second anti-package end points (31); It is characterized in that: between described the first anti-package end points (43) and the second anti-package end points (31), tri filling glue (7) is set.