CN209257797U

CN209257797U - A kind of UHP tire of resistance to sidewall bulge

Info

Publication number: CN209257797U
Application number: CN201821613541.1U
Authority: CN
Inventors: 高楠; 查磊; 宋恩磊
Original assignee: Anhui Giti Radial Tire Co Ltd
Current assignee: Anhui Giti Radial Tire Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2019-08-16
Anticipated expiration: 2028-09-30

Abstract

The utility model provides a kind of UHP tire of resistance to sidewall bulge, including sidewall, belt, wire loop, triangle rubber and carcass, the belt includes the first belt and the second belt, the carcass includes at least one layer of casing ply, it the outside casing ply anti-package wire loop that is bonded in the carcass with the first belt and extends between outside casing ply and the first belt, the distance between outer point of the anti-package endpoint of the outside casing ply and the first belt L₁The distance between the outer point of sidewall upper extreme point and the first belt L₂Between have 1.5≤L₁/L₂≤ 2.0 relationship.In the utility model, the casing ply being bonded in tire with belt is designed using high anti-package, so that anti-package endpoint is fallen in the lower section of belt, is distributed in the region Gao Qurao to avoid anti-package endpoint, to reduce the risk of cord fatigue fracture.

Description

A kind of UHP tire of resistance to sidewall bulge

Technical field

The utility model belongs to tyre technology, and in particular to a kind of UHP tire of resistance to sidewall bulge.

Background technique

The safety traffic of vehicle and tire are closely related, load bearing component of the tire as vehicle, and basic function includes Support load transmits brake force and driving force to the ground, so that vehicle is accomplished starting, acceleration, deceleration, braking, maintains and change Become the direction of advance of vehicle, and mitigates the impact etc. on road surface.Due to various, people it is daily on the run when Tire often can inadvertently occur and road tooth bumps against or tire moves quickly through ditch, bank and road surface foreign matter, if excessive velocities It will lead to rim flange and alluvium generate severe crush and makes sidewall curtain thread breakage, the air of inside tires will be from breaking part It jacks up, to form sidewall bulge.

During contacting with road surface, the ability with envelope, i.e. tyre buffering simultaneously reduce road surface and do not advise pneumatic tire Influenced caused by then, generally for improve this envelope ability can by reduce tyre inflating pressure, using big depth-width ratio come It realizes, but for UHP tire, there are limitations for these means.The characteristics of UHP, that is, very-high performance tire, such tire, is just It is small including depth-width ratio, it is vehicle-mounted relatively high using air pressure, wherein the feature small for depth-width ratio, has been doomed the sidewall area of tire Between it is more narrow, this just need to carry out the structure of the sidewall area of tire it is thoroughgoing and painstaking consider, to reduce sidewall bulge The risk of generation.

Utility model content

The purpose of the utility model is to provide a kind of UHP tires of resistance to sidewall bulge, to overcome above-mentioned technical problem.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of UHP tire of resistance to sidewall bulge, including sidewall, belt, wire loop, triangle rubber and carcass, feature It is, the belt includes the first belt and the second belt being arranged from inside to outside, and the carcass includes at least one layer Casing ply, wire loop described in the outside casing ply anti-package being bonded in the carcass with the first belt and extends from the wire loop Extremely between the outside casing ply and first belt, the anti-package endpoint of the outside casing ply and first belt The distance between outer point L₁The distance between the outer point of sidewall upper extreme point and first belt L₂Between have There is 1.5≤L₁/L₂≤ 2.0 relationship.

Further, the distance between the outer point of the anti-package endpoint of the outside casing ply and first belt L₁For 15-25mm, preferably 20mm.

Further, the sidewall is formed with rim of the mouth shield glue close to one end of triangle rubber, and the other end on the sidewall is formed There is shoulder wedge, the rim of the mouth shield glue includes the first high point, the second high point and the third arranged towards the shoulder wedge direction High point, the thickness h of first high point₁With the thickness h of the second high point₂, the second high point h₂With third high point thickness h₃Have 0.6≤h₁/h₂≤0.7、1.0≤h₂/h₃≤ 1.5 relationship.

Preferably, the width L of first high point₃With the width L of the second high point₄With L₃=0.5L₄Relationship.

Preferably, the thickness h of first high point₁For 3.0~3.5mm, preferably 3.3mm.

Preferably, the height H of the rim of the mouth shield glue₁With the height H of the triangle rubber₂Between have

10mm≤H₁-H₂The relationship of≤15mm.

The utility model has the advantages that

1, the casing ply being bonded in tire described in the utility model with belt is designed using high anti-package, makes anti-package endpoint The lower section of belt is fallen in, is distributed in the region Gao Qurao to avoid anti-package endpoint, anti-package layer plays the work of similar neutral line at this time With to reduce the risk of cord fatigue fracture；Simultaneously by the outer point of anti-package endpoint, belt to casing ply and The design of the upper extreme point on sidewall reduces the case where each endpoint is excessively concentrated, and reduces sidewall and stress damage occurs and generates bubble Risk；

2, the utility model simultaneously redesigns the sidewall rim of the mouth shape of the mouth as one speaks, promotes the thickness of the second high point, to increase In the rim of the mouth thickness of the second high point, the contact pressure at this position between tire and wheel rim is promoted with this, make tire and wheel rim it Between assemble it is even closer, to reduce tire tire in use and the risk of Relative sliding, the hair of Relative sliding occurs in wheel rim It is raw not only to make tire that uneven wear occur, the balance of wheel can be also destroyed, thus can lead to the stress of tyre cord more For complexity, increase the risk of sidewall bulge.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the sidewall degree of lip-rounding figure of utility model；

In figure: 1, outside casing ply；2, the first belt；3, the second belt；4, sidewall；41, glue is protected in rim of the mouth；42, tire Shoulder protects glue；5, wire loop；6, triangle rubber；7, anti-package endpoint；8, outer point；9, sidewall upper extreme point.

Specific embodiment

In the description of the present invention, unless otherwise indicated, term " on " "lower" " left side " " right side " " preceding " " rear " etc. indicates Orientation or positional relationship merely to description the utility model and simplify description, rather than the device of indication or suggestion meaning or Structure must have a particular orientation, therefore should not be understood as limiting the present invention.In addition, term " first " " second " Etc. being used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

As shown in Figure 1, the UHP tire of resistance to sidewall bulge described in the utility model, including sidewall, belt, wire loop, Triangle rubber and carcass, wherein the belt includes the first belt and the second belt being arranged from inside to outside, it is described Carcass include at least one layer of casing ply, wherein described in the outside casing ply anti-package being bonded in the carcass with the first belt Wire loop, and from the wire loop extend to outside casing ply and the first belt between, i.e., the described outside casing ply it is anti- Packet endpoint injects between outside casing ply and the first belt, the outer point of the anti-package endpoint and first belt it Between distance L₁The distance between the outer point of sidewall upper extreme point and first belt L₂Between have 1.5≤L₁/L₂ ≤ 2.0 relationship, wherein L₁Range between 15-25mm, preferably 20mm.

As described in Figure 2, the sidewall is formed with rim of the mouth shield glue close to one end of triangle rubber, and the other end is formed with tire shoulder pad Glue, the rim of the mouth shield glue includes the first high point, the second high point and the third high point arranged towards the shoulder wedge direction, described The thickness h of first high point₁With the thickness h of the second high point₂, second high point thickness h₂With the thickness h of third high point₃Have 0.6≤h₁/h₂≤0.7、1.0≤h₂/h₃≤ 1.5 relationship, and the width L of first high point₃For the width L of the second high point₄ Half, wherein the thickness h of first high point₁Range be 3.0-3.5mm, preferably 3.3mm；Glue is protected in the rim of the mouth simultaneously Design height H₁With the height H of the triangle rubber₂Between have 10mm≤H₁-H₂The relationship of≤15mm, it is preferable that rim of the mouth shield The height of glue is 35mm, and the height of triangle rubber is 20mm, and the accumulation sum aggregate of each endpoint at tire sidewall and triangle rubber is avoided with this In.

Table 1 is the preparation data of embodiment and comparative example:

Table 1

	L₁/L₂	h₁/h₂	h₂/h₃	H₁	H₂
						Embodiment 1	1.5	0.5	1.2	35	20
Embodiment 2	1.5	0.6	1	35	20
						Embodiment 3	1.7	0.65	1.5	35	20
Embodiment 4	2	0.7	1.3	35	20
						Embodiment 5	2	0.8	1.6	35	20
Comparative example 1	-	-	-	35	20
						Comparative example 2	1.4	-	-	35	20

Wherein the casing ply in comparative example 1 does not carry out anti-package design；Casing ply in comparative example 2 has carried out anti-package design, The rim of the mouth shape of the mouth as one speaks is not designed；

One, the carcass strength to above-described embodiment 2 and comparative example 1 and rim of the mouth thickness detect, wherein embodiment 2 with Every decimeter of cord quantity is 112 in comparative example 1, and table 2 is the tables of data of carcass strength and rim of the mouth thickness；

Table 2

Note: carcass strength is to be calculated based on comparative example 1, and the cord strength=carcass strength * cord is pulled apart Power * cord quantity.

As known from Table 1, the utility model promotes 1.5 times, especially sidewall area relative to comparative example 1, carcass strength Cord intensity be significantly improved, promote 10640N/ decimeters relative to comparative example, that is, set by the structure of high anti-package Meter is equipped with the decentralized design of anti-package endpoint, sidewall upper extreme point and the first belt outer point, is reinforcing carcass especially tire While the intensity of side position, the risk that stress damage occurs and generates bubble is effectively reduced, reduces cord fatigue fracture risk； The design in above-mentioned sidewall rim of the mouth is conducive to increase tyre rim thickness, promotes the contact pressure between tire and wheel rim, so that wheel Interference fit between tire and wheel rim is even closer, occurs the phenomenon that Relative sliding between tire and wheel rim to evade.

Two, impact resistance test method:

When test, speed is successively carried out with the sequence of 20/30/40/50km/h, with left side tire or right side tire when test Frontal impact pothole, each speed tested twice, is checked tire after test every time, is tested drum has not occurred twice Or blasting phenomena, then next speed trial is carried out according to speed order, until tire has occurred bulging or blasting phenomena and terminated examination It tests, for the ease of the otherness of comparative test result, the tire phenomenon still without exception when test is carried out to 50km/h second, Then continue to be tested with the speed of 50km/h, carries out to tire abnormal or the 20th shock, off-test occur.

Test result such as the following table 3 of embodiment 1-5 and comparative example 1-2:

Table 3

It is 30km/h that remarks 1: the 1 and 2 stage speed, which are the stage speed of 20km/h, the 3rd and 4, the 5th and 6 stages speed Degree is 40km/h, 7-28 stage speed be 50km/h.

Remarks 2: " √ " is characterized in tire in the stage and does not occur bulge phenomenon；In table, occur under embodiment and comparative example Digital representation there is bulge phenomenon within the digital stage of place.

As known from Table 3, it is bulge occur that comparative example 1 hits the 2nd sidewall at 50km/h, and comparative example 2 is at 50km/h There is bulge when hitting the 14th time；Embodiment 2-4 is not until bulge phenomenon all occurs for 28 off-tests, and embodiment 1 and real It applies example 5 and just occurs bulge phenomenon at the 25th and the 27th time respectively, is i.e. the ability of the resistance to sidewall bulge of embodiment 1-5 is much higher than comparative example When 1-2, i.e. tire construction use high anti-package structure and rim of the mouth die design in the utility model, the resistance to bulge performance effect of tire Fruit is best.

In order to keep the purpose of this utility model, technical solution and advantage more concise, the above tool of the utility model Body embodiment is illustrated, and is used only for description the utility model, be should not be understood as the limitation to the scope of the utility model.It answers It, should all when, it is noted that any modifications, equivalent replacements, and improvements etc. done within the spirit and principle of the utility model It is included within the scope of protection of this utility model.Therefore, the protection scope of the utility model patent should be with appended claims Subject to.

Claims

1. a kind of UHP tire of resistance to sidewall bulge, including sidewall (4), belt, wire loop (5), triangle rubber (6) and carcass, It is characterized in that, the belt includes the first belt (2) and the second belt (3) being arranged from inside to outside, the carcass Including at least one layer of casing ply, wire loop described in outside casing ply (1) anti-package for being bonded in the carcass with the first belt and It is extended between the outside casing ply and first belt from the wire loop, the anti-package endpoint of the outside casing ply (7) with the distance between the outer point (8) of first belt L₁With sidewall upper extreme point (9) and first belt The distance between outer point L₂Between have 1.5≤L₁/L₂≤ 2.0 relationship.

2. the UHP tire of resistance to sidewall bulge as described in claim 1, which is characterized in that the anti-package end of the outside casing ply The distance between point and the outer point of first belt L₁For 15-25mm.

3. the UHP tire of resistance to sidewall bulge as described in claim 1, which is characterized in that the sidewall close to triangle rubber one End is formed with rim of the mouth shield glue (41), and the other end on the sidewall is formed with shoulder wedge (42), and the rim of the mouth shield glue includes direction The first high point, the second high point and the third high point of the shoulder wedge direction arrangement, the thickness h of first high point₁With second The thickness h of high point₂, second high point thickness h₂With the thickness h of third high point₃With 0.6≤h₁/h₂≤0.7、1.0≤h₂/ h₃≤ 1.5 relationship.

4. the UHP tire of resistance to sidewall bulge as claimed in claim 3, which is characterized in that the width L of first high point₃With The width L of two high points₄With L₃=0.5L₄Relationship.

5. the UHP tire of resistance to sidewall bulge as described in claim 3 or 4, which is characterized in that the thickness h of first high point₁ For 3.0~3.5mm.

6. the UHP tire of resistance to sidewall bulge as claimed in claim 3, which is characterized in that the height H of the rim of the mouth shield glue₁With institute State the height H of triangle rubber₂Between have 10mm≤H₁-H₂The relationship of≤15mm.