CN207257267U

CN207257267U - A kind of run-flat tire of the comfortable safety of simplified technique

Info

Publication number: CN207257267U
Application number: CN201721139020.2U
Authority: CN
Inventors: 高飞
Original assignee: Anhui Giti Radial Tire Co Ltd
Current assignee: Anhui Giti Radial Tire Co Ltd
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2018-04-20
Anticipated expiration: 2027-09-06

Abstract

The utility model provides a kind of run-flat tire of the comfortable safety of simplified technique, by a kind of new sidewall die design, can reduce the production complexity of run-flat tire, and then improving production efficiency and uniformity；Traverse furrow is designed to the turbulent ditch of gradual change, the air-flow into traverse furrow is upset by scarf, disorderly air-flow can be discharged by the bottom of trench of tubaeform opening again, can effectively reduce high pressure gas ring sound, and then lift the comfort of tire；The position of endpoint above and below design support glue, its width is set to be conducive to cover the larger region of stress, at the same time according to Tire support glue thickness and the linear relationship of temperature, so that Tire support glue stress equalization, be conducive to be lifted endurance quality during zero air pressure of tire, 100min can be travelled with 80km/h, it is ensured that the security performance of run-flat tire.

Description

A kind of run-flat tire of the comfortable safety of simplified technique

Technical field

It the utility model is related to tyre technology, and in particular to a kind of run-flat wheel of the comfortable safety of simplified technique Tire.

Background technology

Because it will not cause running out the way to cause security incident because of tire instantaneous loss of pressure, tire is run-flat tire at present Make in zero air pressure, the tire store that vehicle can still reach nearby changes tire.

Vehicle is due to that need not use spare tyre, the space bigger of boot.With good security, convenience, save sky Intersexuality, run-flat tire has the good market space and development prospect, but leaves following deficiency：

1) run-flat tire because sidewall it is very thick so that comfort property is poor, production technology complexity cause low production efficiency, Uniformity is relatively low.Traditional run-flat tire is first bonded liner layer in shaping, fitting support glue after then base drum opens, Then 1P, 2P cord are bonded, detains wire loop, anti-package cord, is bonded anti-friction film, is finally bonded sidewall.Because of run-flat tire Be molded using second stage building machine, a section be molded it is complicated, it is necessary to source, laser apparatus alignment much such as W1-W6, add construction and The complexity of equipment, simultaneously because each component is required to manually be bonded, adds deviation during size shaping, is unfavorable for uniformly Property；

2) run-flat tire because sidewall it is very thick so that comfort property is poor, especially in tire in motion, air draught meeting The traverse furrow of alternate compressing tyre surface, these air-flows can form impacting with high pressure traverse furrow when tire speed is high, and then form the height of traverse furrow Calm the anger ring sound, cause tire to make an uproar excessive.

3) due to support glue design deficiency, at present run-flat tire can only be exercised with 80km/h under zero air pressure 60min。

Utility model content

The utility model, which provides one kind, can simplify technique, and the run-flat tire with comfortable security function.

In order to solve the above technical problems, the utility model adopts the following technical solution：

A kind of run-flat tire of the comfortable safety of simplified technique, including tyre surface, sidewall and the branch on the inside of carcass Glue is supportted, a plurality of circumferential major trough upwardly extended in tire week is offered on the tyre surface and extends on tire width direction Glue, the rim of the mouth shield are protected in multiple pattern grooves, the one end on the sidewall formed with shoulder wedge, the other end on sidewall formed with rim of the mouth Anti-friction film is extended in the side of glue, the width l of the anti-friction film₁With the width l of rim of the mouth shield glue₂With 0.2≤l₁/l₂≤ 0.44 relation, the high point thickness h of the rim of the mouth shield glue₁With the thickness h of sidewall wheel rim protection cusp₂With 0.63≤h₁/h₂≤ 0.71 relation；

The pattern groove includes the tire-shoulder transverse groove being arranged in shoulder portion, which includes traverse furrow main body and be used for The traverse furrow interconnecting part of adjacent circumferential major trough is connected, the wherein groove both sides outer rim of traverse furrow main body has the first scarf, and traverse furrow connects The groove side outer rim in logical portion has the second scarf.

Further, the upper extreme point of the support glue is placed in the range of (0.72-0.86) * W1B, and wherein W1B is underlying band The width of beam layer half, the distance of the lower extreme point and rim of the mouth shield glue lowermost end of the support glue is 15-25mm, the support glue The width L and high SH of tire section has the relation of 0.83≤L/SH≤0.91.

Preferably, the pattern groove further includes the crown traverse furrow for being arranged on adjacent circumferential major trough opposite side, the crown traverse furrow One or both sides outer rim there is the 3rd scarf.Shape between the traverse furrow interconnecting part and the traverse furrow main body and circumferential major trough at both ends Into there is staged not wait ditch depth, the wherein ditch depth of traverse furrow interconnecting part is less than the ditch depth of traverse furrow main body and circumferential major trough, the decorative pattern The groove bottom of trench of groove is arranged to the tubaeform of opening.

Preferably, the tyre surface is circumferentially with five kinds of different pattern pitch along tire, respectively the first pattern pitch a, Second pattern pitch b, the 3rd pattern pitch c, the 4th pattern pitch d and the 5th pattern pitch e, the pattern pitch use Two-in-one pitch design, is respectively the first pattern pitch a₁a₂, the second pattern pitch b₁b₂, the 3rd pattern pitch c₁c₂, the 4th flower Line pitch d₁d₂And the 5th pattern pitch e₁e₂, wherein a₁：a₂=6:4、b₁：b₂=6:4、c₁：c₂=5:5、d₁：d₂=4:6、 e₁：e₂=4:6.

Preferably, the shoulder wedge is included towards the first high point, the second high point and the arranged on the Hu Jiao directions of rim of the mouth Three high points, the thickness h of first high point₃, the second high point thickness h₄And the 3rd high point thickness h₅With 0.78≤h₃/h₄≤ 1 and 0.8≤h₄/h₅≤ 1 relation.

Preferably, the width for supporting glue is divided into by L from medium position to both sides according to Temperature Distribution₁、L₂、L₃And L₄, and L₁：L₂：L₃：L₄=1:0.64:0.53:0.53, the interior thickness of the support glue is H₁, L₁And L₂Point of intersection thickness be H₂, L₂ And L₃Point of intersection thickness be H₃, L₃And L₄Point of intersection thickness be H₄, and H₁：H₂：H₃：H₄=1:0.91:0.7:0.42.

From above technical scheme, the utility model can reduce deficency guarantor by a kind of new sidewall die design With the production complexity of tire, and then improving production efficiency and uniformity；The utility model is designed to traverse furrow in the turbulent flow of gradual change Ditch, upsets the air-flow into traverse furrow, disorderly air-flow can be discharged by the bottom of trench of tubaeform opening again, can by scarf High pressure gas ring sound is effectively reduced, and then lifts the comfort of tire；The position of endpoint above and below the utility model design support glue, Its width is set to be conducive to cover the larger region of stress, while according to Tire support glue thickness and the linear relationship of temperature so that Tire support glue stress equalization, is conducive to be lifted endurance quality during zero air pressure of tire, can travel 100min with 80km/h, really Protect the security performance of run-flat tire.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model run-flat tire；

Fig. 2 is the sidewall shape of the mouth as one speaks figure of the utility model；

Fig. 3 is the support rubber die figure of the utility model；

Fig. 4 is the structure diagram of tire-shoulder transverse groove, circumferential major trough and crown traverse furrow in the utility model；

Fig. 5 is the sectional view of F-F1-F2 in Fig. 4, shows that staged does not wait ditch depth；

Fig. 6 is the sectional view of E-E1 in Fig. 4；

Fig. 7 is the sectional view of G-G1 in Fig. 4；

Fig. 8 is the tyre surface partial enlarged view of the utility model.

Embodiment

A kind of preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the run-flat tire includes tyre surface 10, sidewall 20 and the support glue on the inside of carcass 30.Run-flat tire is first bonded liner layer in shaping, and fitting support glue, is then bonded 1P, 2P cord after base drum opens, Wire loop is detained, anti-package cord, is finally bonded sidewall.

To lift the uniformity of tire, the number of worker's adhesive parts is reduced, reduces the molding complexity of run-flat tire Degree, the new sidewall shape of the mouth as one speaks of utility model, when being extruded on sidewall, is incorporated into sidewall by anti-friction film and extrudes so that is new practical new The sidewall of type has the function of sidewall and anti-friction film, and new sidewall has fine versatility.The new sidewall shape of the mouth as one speaks only has W1-W5 Root laser positioning line, and few tire parts, can reduce the production complexity of run-flat tire, lift uniformity.

Fig. 2 shows the shape of the mouth as one speaks figure on sidewall, and the one end on the sidewall 20 is formed formed with shoulder wedge 30, the other end on sidewall There is rim of the mouth to protect glue 40.

Extend anti-friction film 50, the width l of the anti-friction film in the side of the rim of the mouth shield glue 40₁With the width of rim of the mouth shield glue Spend l₂With 0.2≤l₁/l₂≤ 0.44 relation.Usual anti-friction film stock thickness is 1.0mm, width 40-45mm, in order to integrate Sidewall and the sidewall shape of the mouth as one speaks of anti-friction film, the width l of anti-friction film 50 in the present embodiment₁For 10-20mm, less than being generally separated out Anti-friction film, the width reduced for compensation, i.e., space wastage that anti-friction film is brought is, it is necessary to adjust the high point that glue 40 is protected in rim of the mouth The high point thickness h of glue is protected in K, rim of the mouth₁With the thickness h of sidewall wheel rim protection cusp K₂With 0.63≤h₁/h₂≤ 0.71 relation. The high point thickness h of glue is protected in the present embodiment rim of the mouth₁For 6-7mm, finally ensure new sidewall shape of the mouth as one speaks rim of the mouth shield glue surface product plus anti-friction Film area and traditional area equation.

Run-flat tire stress FEA is analyzed, and tire shoulder in stress deflects greatly, and deformation is big, the thin sidewall shape of the mouth as one speaks Shoulder wedge stress deformation is big, influences the ability that tire vertical direction absorbs load, and the shoulder wedge 30 of the utility model wraps Include towards the first high point G arranged on the Hu Jiao directions of rim of the mouth₁, the second high point G₂With the 3rd high point G₃, the thickness of first high point h₃, the second high point thickness h₄And the 3rd high point thickness h₅With 0.78≤h₃/h₄≤ 1 and 0.8≤h₄/h₅≤ 1 relation. Increase the thickness of shoulder wedge, can effectively absorb the kinetic energy that the load of vertical direction produces, pass through the viscous of thicker BEC sizing materials The kinetic energy of more tire vertical directions, can be converted into heat and shed by elastic reaction, and then can effectively reduce wheel The vibration of tire vertical direction, lifts the comfort property of tire.

In the present embodiment, the first high point G₁Thickness be 3.5-4mm, the second high point G₂Thickness be 4-4.5mm, Three high point G₃Thickness be 4.5-5mm.

As shown in figure 4, a plurality of circumferential major trough 60 upwardly extended in tire week is offered on the tyre surface 10 and is being taken turns The multiple pattern grooves extended on tire width.The pattern groove includes the tire-shoulder transverse groove 61 being arranged in shoulder portion and is arranged in Crown traverse furrow 62 on crown, wherein tire-shoulder transverse groove include traverse furrow main body 611 and the traverse furrow for connecting adjacent circumferential major trough Interconnecting part 612, crown traverse furrow are connected with the opposite side of circumferential major trough.

As shown in Figures 6 and 7, air-flow is upset in order to form turbulent ditch, makes an uproar so as to reduce tire, in traverse furrow main body 611 Groove both sides outer rim there is the second scarf formed with the first scarf 613, the groove side outer rim of traverse furrow interconnecting part 612 614, and there is the 3rd scarf 621 in the one or both sides outer rim of crown traverse furrow 62.First scarf by tire outside Lateral inner side gradually broadens, the width of more preferable fitting channel, and the second scarf and the 3rd scarf can use wide set Meter.The groove bottom of trench of the tire-shoulder transverse groove 61 and crown traverse furrow 62 is arranged to the tubaeform of opening, is conducive to be vented, effective drop Low high pressure gas ring sound, and then lift the comfort of tire.

As shown in figure 5, between the traverse furrow interconnecting part 612 and the traverse furrow main body 611 and circumferential major trough 60 at both ends formed with Staged does not wait ditch depth, and the wherein ditch depth of traverse furrow interconnecting part is less than the ditch depth of traverse furrow main body and circumferential major trough, horizontal in the present embodiment The ditch depth of ditch interconnecting part is 2.5mm ± 1mm.Ditch depth is not waited further to form turbulent flow effect using staged.

The circumferential major trough 60 and pattern groove limit multiple pattern blocks, a pattern block and an adjacent pattern groove Form a pattern pitch.According to the design principle of low noise tire, adjacent pattern pitch easily produces high tire when equal and makes an uproar, this Be circumferentially with five kinds of different pattern pitch along tire in utility model, be respectively the first pattern pitch a, the second pattern pitch b, 3rd pattern pitch c, the 4th pattern pitch d and the 5th pattern pitch e, the pattern pitch are set using two-in-one pitch Meter, is respectively the first pattern pitch a₁a₂, the second pattern pitch b₁b₂, the 3rd pattern pitch c₁c₂, the 4th pattern pitch d₁d₂And 5th pattern pitch e₁e₂, wherein a₁：a₂=6:4、b₁：b₂=6:4、c₁：c₂=5:5、d₁：d₂=4:6、e₁：e₂=4:6, formed Asymmetric frequency conversion bipatch design.

Five kinds of traditional pitches share the arrangement of 5 × 4 × 3 × 2 × 1=120 kinds, are set using asymmetric frequency conversion bipatch Meter, new pitch design have 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1=3628800 kind arrangement modes, and Fig. 8 is shown newly Pitch design, add the mode of joint slope.Traditional pitch design result of spectrum analysis and the utility model frequency conversion section Compared away from result of spectrum analysis, the frequency conversion pitch peak swing ＜ 0.25 of the utility model, traditional section on the amplitude of pitch Away from design peak swing ＜ 0.30；On the bandwidth of section, the frequency conversion pitch bandwidth of the utility model concentrates on 0-11.5, traditional Pitch design bandwidth concentrates on 0-7.5, it can be seen that the frequency conversion pitch of the utility model can reduce the frequency of the decorative pattern section of tire Spectral amplitude, increases the spectral bandwidth of the decorative pattern section of tire, and according to V=f* λ, in the case where medium is certain, spread speed V is constant, Increase wavelength X so that frequency f is reduced, and thereby reduces the traveling noise of tire, improves the comfort of run-flat tire.

In zero air pressure when driving, support glue temperature is very high for tire, shows tire sidewall position, and support glue stress is very big, this Utility model is based on temperature field analysis, designs a kind of support rubber die, is conducive to be lifted zero air pressure endurance quality of tire.

As shown in Figure 1, in terms of tire running FEA analysis charts, whole 20 region of sidewall is stress large area, supports glue 30 are placed on the inside of sidewall, and support glue upper extreme point A is arranged in the range of (0.72-0.86) * W1B, and wherein W1B is lower floor's belt one Half width, may be such that support glue upper extreme point covering stress large area.

The lower extreme point B of the support glue 30 and the distance of rim of the mouth shield glue lowermost end C are 15-25mm, be may be such that under support glue Endpoint covers stress large area.The width L and the high SH of tire section of the support glue have the pass of 0.83≤L/SH≤0.91 System, SH is high for tire section, SH=tyre section width * Aspect Ratios.

As shown in figure 3, according to the Temperature Distribution of support glue, the width for supporting glue is divided into from medium position to both sides L₁、L₂、L₃And L₄, and L₁：L₂：L₃：L₄=1:0.64:0.53:0.53, the interior thickness of the support glue is H₁, L₁And L₂Friendship Thickness is H at point₂, L₂And L₃Point of intersection thickness be H₃, L₃And L₄Point of intersection thickness be H₄, and H₁：H₂：H₃：H₄=1:0.91: 0.7:0.42.It may be such that Tire support glue thickness and temperature line relationship so that Tire support glue stress equalization.

Embodiment described above is only that the preferred embodiment of the utility model is described, not to this practicality New scope is defined, and on the premise of the spirit of the design of the utility model is not departed from, those of ordinary skill in the art are to this The various modifications and improvement that the technical solution of utility model is made, should all fall into the guarantor that claims of the utility model determine In the range of shield.

Claims

1. a kind of run-flat tire of the comfortable safety of simplified technique, including tyre surface, sidewall and the support on the inside of carcass Glue, offers a plurality of circumferential major trough upwardly extended in tire week on the tyre surface and extends on tire width direction more Glue is protected in a pattern groove, the one end on the sidewall formed with shoulder wedge, the other end on sidewall formed with rim of the mouth, it is characterised in that Anti-friction film is extended in the side of the rim of the mouth shield glue, the width l of the anti-friction film₁With the width l of rim of the mouth shield glue₂With 0.2≤ l₁/l₂≤ 0.44 relation, the high point thickness h of the rim of the mouth shield glue₁With the thickness h of sidewall wheel rim protection cusp₂With 0.63≤ h₁/h₂≤ 0.71 relation；

The pattern groove includes the tire-shoulder transverse groove being arranged in shoulder portion, which includes traverse furrow main body and for connecting The groove both sides outer rim of the traverse furrow interconnecting part of adjacent circumferential major trough, wherein traverse furrow main body has the first scarf, traverse furrow interconnecting part Groove side outer rim there is the second scarf.

2. run-flat tire according to claim 1, it is characterised in that the upper extreme point of the support glue is placed in (0.72- 0.86) in the range of * W1B, wherein W1B is the width of lower floor's belt half, and the lower extreme point of the support glue protects glue most with rim of the mouth The distance of bottom is 15-25mm, and the width L and the high SH of tire section of the support glue have the pass of 0.83≤L/SH≤0.91 System.

3. run-flat tire according to claim 1 or 2, it is characterised in that the pattern groove, which further includes, is arranged on phase The crown traverse furrow of adjacent circumferential major trough opposite side, the one or both sides outer rim of the crown traverse furrow have the 3rd scarf, the traverse furrow Ditch depth formed with the staged ditch depth, wherein traverse furrow interconnecting part such as not between interconnecting part and the traverse furrow main body and circumferential major trough at both ends Less than the ditch depth of traverse furrow main body and circumferential major trough, the groove bottom of trench of the pattern groove is arranged to the tubaeform of opening.

4. run-flat tire according to claim 1 or 2, it is characterised in that the tyre surface is circumferentially with five along tire The different pattern pitch of kind, is respectively the first pattern pitch a, the second pattern pitch b, the 3rd pattern pitch c, the 4th pattern pitch D and the 5th pattern pitch e, the pattern pitch use two-in-one pitch design, are respectively the first pattern pitch a₁a₂, Two pattern pitch b₁b₂, the 3rd pattern pitch c₁c₂, the 4th pattern pitch d₁d₂And the 5th pattern pitch e₁e₂, wherein a₁：a₂= 6:4、b₁：b₂=6:4、c₁：c₂=5:5、d₁：d₂=4:6、e₁：e₂=4:6 .

5. run-flat tire according to claim 1 or 2, it is characterised in that the shoulder wedge is included towards rim of the mouth The first high point, the second high point and the 3rd high point arranged on shield glue direction, the thickness h of first high point₃, the second high point thickness h₄And the 3rd high point thickness h₅With 0.78≤h₃/h₄≤ 1 and 0.8≤h₄/h₅≤ 1 relation.

6. run-flat tire according to claim 1 or 2, it is characterised in that the width of glue will be supported according to Temperature Distribution Degree is divided into L from medium position to both sides₁、L₂、L₃And L₄, and L₁：L₂：L₃：L₄=1:0.64:0.53:0.53, the support glue Interior thickness be H₁, L₁And L₂Point of intersection thickness be H₂, L₂And L₃Point of intersection thickness be H₃, L₃And L₄Point of intersection thickness For H₄, and H₁：H₂：H₃：H₄=1:0.91:0.7:0.42.