CN107415599B - Run-flat tire with simplified process and comfort and safety - Google Patents
Run-flat tire with simplified process and comfort and safety Download PDFInfo
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- CN107415599B CN107415599B CN201710798396.2A CN201710798396A CN107415599B CN 107415599 B CN107415599 B CN 107415599B CN 201710798396 A CN201710798396 A CN 201710798396A CN 107415599 B CN107415599 B CN 107415599B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 21
- 239000011295 pitch Substances 0.000 claims description 52
- 239000011324 bead Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a run-flat tire which is comfortable and safe in simplified process, and the production complexity of the run-flat tire can be reduced through a novel sidewall mouth shape design, so that the production efficiency and uniformity are improved; the transverse grooves are designed into gradual turbulence grooves, the air flow entering the transverse grooves is disturbed through the inclined surfaces, and the disturbed air flow can be discharged through the bottom of the horn-shaped open grooves, so that high-pressure air sounding can be effectively reduced, and the comfort of the tire is further improved; the positions of the upper end point and the lower end point of the supporting glue are designed, so that the width of the supporting glue is favorable for covering a region with larger stress, meanwhile, according to the linear relation between the thickness of the tire supporting glue and the temperature, the stress of the tire supporting glue is balanced, the durability of the tire under zero air pressure is improved, the tire can run for 100 minutes at 80km/h, and the safety performance of the run-flat tire is ensured.
Description
Technical Field
The invention relates to the technical field of tires, in particular to a run-flat tire which is comfortable and safe and simplifies the process.
Background
At present, the run-flat tire can not cause safety accidents due to vehicle deviation caused by the instant pressure loss of the tire, and the vehicle can still be started to a nearby tire store for changing the tire even if the tire is at zero pressure.
The space of the trunk is larger because the vehicle does not need to use a spare tire. The run-flat tire has good safety, convenience and space saving property, has good market space and development prospect, but has the following defects:
1) The run-flat tire has poor comfort performance due to thick sidewalls, and low production efficiency and low uniformity due to complex production technology. When the traditional run-flat tire is formed, firstly, an inner liner layer is attached, then a base drum is unfolded, then supporting glue is attached, then 1P curtain cloth and 2P curtain cloth are attached, a bead ring is buckled, the curtain cloth is reversely wrapped, an anti-friction piece is attached, and finally a sidewall is attached. Because the run-flat tire is formed by adopting a two-stage forming machine, the one-stage forming is complex, the required laser setting lines are as many as W1-W6, the complexity of construction and equipment is increased, and meanwhile, because each part needs to be manually attached, the deviation in the process of size forming is increased, and the uniformity is not facilitated;
2) The run-flat tire has poor comfort performance due to thick sidewalls, particularly when the tire is running, air flows can alternately press the transverse grooves of the tread, and when the tire speed is high, the air flows can form high-pressure impact transverse grooves, so that high-pressure air sounds of the transverse grooves are formed, and the tire noise is overlarge.
3) Due to the defect of the design of the supporting rubber, the current run-flat tire can only run for 60 minutes at 80km/h under zero air pressure.
Disclosure of Invention
The invention provides a run-flat tire which can simplify the process and has comfortable and safe functions.
In order to solve the technical problems, the invention adopts the following technical scheme:
a run-flat tire with comfortable and safe simplified process comprises a tread, a sidewall and supporting rubber positioned on the inner side of a tire body, wherein a plurality of circumferential main grooves extending in the circumferential direction of the tire and a plurality of pattern grooves extending in the width direction of the tire are formed on the tread, a shoulder pad rubber is formed at one end of the sidewall, a child mouth protecting rubber is formed at the other end of the sidewall, a rubber-proof piece extends from one side of the child mouth protecting rubber, and the rubber-proof piece has a width l 1 Width of the mouth guard 2 Has 0.2.ltoreq.l 1 /l 2 The relation of less than or equal to 0.44, the high point thickness h of the child mouth protection adhesive 1 Thickness h with sidewall rim protection cusp 2 Has 0.63.ltoreq.h 1 /h 2 A relationship of less than or equal to 0.71;
the tread groove comprises a tire shoulder transverse groove arranged on the tire shoulder, the tire shoulder transverse groove comprises a transverse groove main body and a transverse groove communicating part used for communicating adjacent circumferential main grooves, wherein the outer edges of two sides of the groove of the transverse groove main body are provided with first chamfer surfaces, and the outer edges of one side of the groove of the transverse groove communicating part are provided with second chamfer surfaces.
Further, the upper end point of the supporting glue is arranged in the range of (0.72-0.86) W1B, wherein W1B is the width of half of the lower belt layer, the distance between the lower end point of the supporting glue and the bottommost end of the bead filler is 15-25mm, and the relation between the width L of the supporting glue and the tire section height SH is 0.83-L/SH-0.91.
Preferably, the pattern groove further comprises a crown transverse groove arranged on the other side of the adjacent circumferential main groove, and the outer edge of one side or two sides of the crown transverse groove is provided with a third chamfer. The stepped unequal groove depths are formed between the transverse groove communicating part and the transverse groove main bodies and the circumferential main grooves at the two ends, wherein the groove depths of the transverse groove communicating part are smaller than those of the transverse groove main bodies and the circumferential main grooves, and the groove bottoms of the pattern grooves are arranged in an open horn shape.
Preferably, the tread is provided with five different pattern pitches along the circumferential direction of the tire, namely a first pattern pitch a, a second pattern pitch b, a third pattern pitch c, a fourth pattern pitch d and a fifth pattern pitch e, wherein the pattern pitches are designed by adopting two-in-one pitch and are respectively a first pattern pitch a 1 a 2 Second pattern pitch b 1 b 2 Third pattern pitch c 1 c 2 Fourth pattern pitch d 1 d 2 Fifth pattern pitch e 1 e 2 Wherein a is 1 ：a 2 ＝6:4、b 1 ：b 2 ＝6:4、c 1 ：c 2 ＝5:5、d 1 ：d 2 ＝4:6、e 1 ：e 2 ＝4:6。
Preferably, the shoulder pad comprises a first high point, a second high point and a third high point arranged in the direction of the bead shield, the thickness h of the first high point 3 Thickness h of the second high point 4 Thickness h of third high point 5 Has 0.78.ltoreq.h 3 /h 4 H is more than or equal to 1 and less than or equal to 0.8 4 /h 5 A relationship of less than or equal to 1.
Preferably, the width of the supporting glue is equally divided into L from the middle position to two sides according to the temperature distribution 1 、L 2 、L 3 And L 4 And L is 1 ：L 2 ：L 3 ：L 4 =1:0.64:0.53:0.53, the thickness of the middle part of the support glue is H 1 ，L 1 And L 2 Is H in thickness at the intersection point of 2 ，L 2 And L 3 Is H in thickness at the intersection point of 3 ，L 3 And L 4 Is H in thickness at the intersection point of 4 And H is 1 ：H 2 ：H 3 ：H 4 ＝1:0.91:0.7:0.42。
According to the technical scheme, the novel sidewall mouth shape design can reduce the production complexity of the run-flat tire, and further improve the production efficiency and uniformity; according to the invention, the transverse grooves are designed into gradual turbulence grooves, the air flow entering the transverse grooves is disturbed through the inclined surface, and the disturbed air flow can be discharged through the bottom of the horn-shaped open grooves, so that high-pressure air sounding can be effectively reduced, and the comfort of the tire is further improved; the invention designs the positions of the upper and lower endpoints on the supporting rubber, so that the width of the supporting rubber is favorable for covering a region with larger stress, and meanwhile, the stress of the supporting rubber is balanced according to the linear relation between the thickness of the supporting rubber and the temperature, thereby being favorable for improving the durability of the tire under zero air pressure, enabling the tire to run for 100min at 80km/h and ensuring the safety performance of the run-flat tire.
Drawings
FIG. 1 is a schematic view of the structure of a run-flat tire of the present invention;
FIG. 2 is a sidewall profile of the present invention;
FIG. 3 is a diagram of a support gum mouth shape according to the present invention;
FIG. 4 is a schematic view of the structure of the shoulder transverse grooves, circumferential main grooves and crown transverse grooves according to the present invention;
FIG. 5 is a cross-sectional view of F-F1-F2 of FIG. 4, showing stepped unequal trench depths;
FIG. 6 is a cross-sectional view of E-E1 of FIG. 4;
FIG. 7 is a cross-sectional view of G-G1 of FIG. 4;
fig. 8 is an enlarged view of a tread portion of the present invention.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the run-flat tire includes a tread 10, sidewalls 20, and a support gum 30 located inside the carcass. When the run-flat tire is formed, firstly, an inner liner layer is attached, a base drum is unfolded, then, supporting glue is attached, then, 1P and 2P curtain cloth are attached, a bead ring is buckled, the curtain cloth is reversely wrapped, and finally, a sidewall is attached.
In order to improve the uniformity of the tire, reduce the number of times of fitting parts by workers and reduce the complexity of the formation of the run-flat tire, a novel sidewall mouth shape is invented, and when the sidewall is extruded, an anti-friction rubber sheet is integrated on the sidewall extrusion, so that the novel sidewall has the functions of the sidewall and the anti-friction rubber sheet, and has good universality. The novel sidewall mouth shape has only W1-W5 laser positioning lines and one less tire component, so that the production complexity of the run-flat tire can be reduced, and the uniformity is improved.
Fig. 2 shows a mouth-shape of a sidewall, one end of the sidewall 20 being formed with a shoulder pad 30 and the other end of the sidewall being formed with a sub-mouth guard 40.
An anti-friction film 50 extends from one side of the child-resistant adhesive 40, and has a width l 1 Width of the mouth guard 2 Has 0.2.ltoreq.l 1 /l 2 A relationship of less than or equal to 0.44. The scuff strip typically has a thickness of 1.0mm and a width of 40-45mm, and in order to integrate the sidewall and sidewall profile of the scuff strip, the width l of the scuff strip 50 in this embodiment 1 For 10-20mm, which is lower than the commonly separated anti-friction film, the high point K of the sub-mouth guard 40 and the high point thickness h of the sub-mouth guard need to be adjusted to compensate the reduced width, i.e. the area loss caused by the anti-friction film 1 Thickness h with sidewall rim protection cusp K 2 Has 0.63.ltoreq.h 1 /h 2 A relationship of less than or equal to 0.71. The high point thickness h of the child mouth care adhesive of the embodiment 1 The thickness of the rubber is 6-7mm, and the area of the rubber protection of the new sidewall mouth shape is finally ensured to be equal to the traditional area.
The run-flat tire stress FEA analysis shows that the shoulder is greatly deflected, deformed and the thin sidewall opening type shoulder pad is greatly deformed when the tire is stressed, so that the capability of absorbing load in the vertical direction of the tire is influenced, and the shoulder pad 30 comprises a first high point G which is arranged towards the bead protection direction 1 Second high point G 2 And a third high point G 3 Thickness h of the first high point 3 Thickness h of the second high point 4 Thickness h of third high point 5 Has 0.78.ltoreq.h 3 /h 4 H is more than or equal to 1 and less than or equal to 0.8 4 /h 5 A relationship of less than or equal to 1. The thickness of the shoulder pad is increased, kinetic energy generated by load in the vertical direction can be effectively absorbed, more kinetic energy in the vertical direction of the tire can be converted into heat to be dissipated through the viscoelasticity effect of thicker BEC rubber, and then vibration in the vertical direction of the tire can be effectively reduced, and the comfort performance of the tire is improved.
In this embodiment, the first high point G 1 Is 3.5-4mm thick, the second high point G 2 Is 4 in thickness-4.5mm, third high point G 3 Is 4.5-5mm thick.
As shown in fig. 4, the tread 10 is provided with a plurality of circumferential main grooves 60 extending in the tire circumferential direction and a plurality of lug grooves extending in the tire width direction. The grooves include shoulder lateral grooves 61 arranged on the shoulder portions and crown lateral grooves 62 arranged on the crown, wherein the shoulder lateral grooves include lateral groove bodies 611 and lateral groove communicating portions 612 for communicating with adjacent circumferential main grooves, and the crown lateral grooves communicate with the other side of the circumferential main grooves.
As shown in fig. 6 and 7, in order to form turbulent grooves to disrupt the air flow and thereby reduce the tire noise, first chamfer surfaces 613 are formed at the groove side outer edges of the cross groove body 611, second chamfer surfaces 614 are formed at the groove side outer edges of the cross groove communicating portion 612, and third chamfer surfaces 621 are formed at the side or side outer edges of the crown cross groove 62. The first chamfer is gradually widened from the outer side to the inner side of the tire, the width of the groove is better adapted, and the second chamfer and the third chamfer can be designed to be equal in width. The bottoms of the shoulder transverse grooves 61 and the crown transverse grooves 62 are arranged in an open horn shape, which is favorable for exhausting, effectively reduces high-pressure air ringing and further improves the comfort of the tire.
As shown in fig. 5, stepped unequal groove depths are formed between the lateral groove communicating portion 612 and the lateral groove main body 611 and the circumferential main groove 60 at both ends, wherein the groove depth of the lateral groove communicating portion is smaller than the groove depths of the lateral groove main body and the circumferential main groove, and is 2.5mm±1mm in this embodiment. The use of stepped unequal groove depths can further create turbulent flow effects.
The circumferential main groove 60 and the lug grooves define a plurality of blocks, one of which and an adjacent one of the lug grooves constitute a lug pitch. According to the design principle of the low-noise tire, when the adjacent pattern pitches are equal, high tire noise is easy to generate, in the invention, five different pattern pitches are arranged along the circumferential direction of the tire, namely, a first pattern pitch a, a second pattern pitch b, a third pattern pitch c, a fourth pattern pitch d and a fifth pattern pitch e, and the pattern pitches are designed by adopting two-in-one pitch and are respectively the first pattern pitch a 1 a 2 Second patternPitch b 1 b 2 Third pattern pitch c 1 c 2 Fourth pattern pitch d 1 d 2 Fifth pattern pitch e 1 e 2 Wherein a is 1 ：a 2 ＝6:4、b 1 ：b 2 ＝6:4、c 1 ：c 2 ＝5:5、d 1 ：d 2 ＝4:6、e 1 ：e 2 =4:6, resulting in an asymmetric variable frequency two-pitch design.
The conventional five pitches have 5×4×3×2×1=120 arrangements, and an asymmetric variable-frequency double-pitch design is adopted, and a new pitch design has 10×9×8×7×6×5×4×3×2×1= 3628800 arrangements, and fig. 8 shows the new pitch design with the addition of the pitch arrangement. Compared with the frequency conversion pitch spectrum analysis result, the frequency conversion pitch maximum amplitude of the invention is less than 0.25 on the amplitude of the pitch, and the traditional pitch design maximum amplitude is less than 0.30; the frequency conversion pitch bandwidth of the invention is concentrated at 0-11.5 on the bandwidth of the tire, and the traditional pitch design bandwidth is concentrated at 0-7.5, so that the frequency conversion pitch of the invention can reduce the frequency spectrum amplitude of the pattern joint of the tire, increase the frequency spectrum bandwidth of the pattern joint of the tire, maintain the propagation speed V under the condition of a certain medium according to V=f x lambda, increase the wavelength lambda, reduce the frequency f, further reduce the driving noise of the tire and improve the comfort of the run-flat tire.
When the tire runs under zero air pressure, the temperature of the supporting rubber is very high, which indicates that the stress of the supporting rubber is very high at the tire side part.
As shown in fig. 1, as seen from the analysis chart of the tire running FEA, the whole sidewall 20 area is a larger stress area, the supporting rubber 30 is disposed on the inner side of the sidewall, and the supporting rubber endpoint a is set in the range of (0.72-0.86) ×w1b, where W1B is the width of half of the lower belt layer, so that the supporting rubber endpoint covers the larger stress area.
The distance between the lower end point B of the supporting glue 30 and the bottommost end point C of the child mouth protecting glue is 15-25mm, so that the lower end point of the supporting glue covers a larger stressed area. The relation between the width L of the supporting glue and the tire section height SH is 0.83-0.91, SH is the tire section height, and SH=tire section width is the tire flatness ratio.
As shown in fig. 3, the width of the supporting glue is divided into L from the middle position to two sides according to the temperature distribution of the supporting glue 1 、L 2 、L 3 And L 4 And L is 1 ：L 2 ：L 3 ：L 4 =1:0.64:0.53:0.53, the thickness of the middle part of the support glue is H 1 ，L 1 And L 2 Is H in thickness at the intersection point of 2 ，L 2 And L 3 Is H in thickness at the intersection point of 3 ，L 3 And L 4 Is H in thickness at the intersection point of 4 And H is 1 ：H 2 ：H 3 ：H 4 =1:0.91:0.7:0.42. The thickness of the tire supporting glue can be in linear relation with the temperature, so that the stress of the tire supporting glue is balanced.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (5)
1. The run-flat tire with simplified process and comfort and safety comprises a tread, a sidewall and supporting rubber positioned on the inner side of the tire body, wherein a plurality of circumferential main grooves extending in the circumferential direction of the tire and a plurality of pattern grooves extending in the width direction of the tire are formed on the tread, a shoulder pad rubber is formed at one end of the sidewall, a child mouth protection rubber is formed at the other end of the sidewall, and the run-flat tire is characterized in that an anti-friction film extends from one side of the child mouth protection rubber, and the width l of the anti-friction film is as follows 1 Width of the mouth guard 2 Has 0.2.ltoreq.l 1 /l 2 The relation of less than or equal to 0.44, the high point thickness h of the child mouth protection adhesive 1 Thickness h with sidewall rim protection cusp 2 Has 0.63.ltoreq.h 1 /h 2 A relationship of less than or equal to 0.71;
the tread groove comprises a tire shoulder transverse groove arranged on a tire shoulder, the tire shoulder transverse groove comprises a transverse groove main body and a transverse groove communicating part used for communicating adjacent circumferential main grooves, wherein the outer edges of two sides of the groove of the transverse groove main body are provided with first chamfer surfaces, and the outer edges of one side of the groove of the transverse groove communicating part are provided with second chamfer surfaces; the tread groove further comprises a crown transverse groove arranged on the other side of the adjacent circumferential main groove, a third chamfer is arranged on the outer edge of one side or two sides of the crown transverse groove, step-type unequal groove depths are formed between the transverse groove communicating parts and the transverse groove main bodies at two ends and the circumferential main groove, the groove depths of the transverse groove communicating parts are smaller than those of the transverse groove main bodies and the circumferential main groove, and the groove bottoms of the tread groove are arranged in an open horn shape.
2. The run-flat tire according to claim 1, wherein the upper end point of the support rubber is placed in the range of (0.72-0.86) ×w1b, wherein W1B is the width of half of the lower belt layer, the distance between the lower end point of the support rubber and the bottommost end of the bead filler is 15-25mm, and the width L of the support rubber has a relationship of 0.83.ltoreq.l/sh.ltoreq.0.91 with the tire section height SH.
3. A run-flat tire according to claim 1 or 2, wherein the tread is provided with five different pattern pitches in the tire circumferential direction, namely a first pattern pitch a, a second pattern pitch b, a third pattern pitch c, a fourth pattern pitch d and a fifth pattern pitch e, each of which adopts a two-in-one pitch design, namely a first pattern pitch a 1 a 2 Second pattern pitch b 1 b 2 Third pattern pitch c 1 c 2 Fourth pattern pitch d 1 d 2 Fifth pattern pitch e 1 e 2 Wherein a is 1 ：a 2 ＝6:4、b 1 ：b 2 ＝6:4、c 1 ：c 2 ＝5:5、d 1 ：d 2 ＝4:6、e 1 ：e 2 ＝4:6。
4. The run-flat tire according to claim 1 or 2, wherein theThe shoulder pad comprises a first high point, a second high point and a third high point which are arranged towards the bead shield direction, wherein the thickness h of the first high point 3 Thickness h of the second high point 4 Thickness h of third high point 5 Has 0.78.ltoreq.h 3 /h 4 H is more than or equal to 1 and less than or equal to 0.8 4 /h 5 A relationship of less than or equal to 1.
5. The run-flat tire according to claim 1 or 2, wherein the width of the support gel is divided equally into L from the middle position to both sides according to the temperature distribution 1 、L 2 、L 3 And L 4 And L is 1 ：L 2 ：L 3 ：L 4 =1:0.64:0.53:0.53, the thickness of the middle part of the support glue is H 1 ，L 1 And L 2 Is H in thickness at the intersection point of 2 ，L 2 And L 3 Is H in thickness at the intersection point of 3 ，L 3 And L 4 Is H in thickness at the intersection point of 4 And H is 1 ：H 2 ：H 3 ：H 4 ＝1:0.91:0.7:0.42。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710798396.2A CN107415599B (en) | 2017-09-06 | 2017-09-06 | Run-flat tire with simplified process and comfort and safety |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710798396.2A CN107415599B (en) | 2017-09-06 | 2017-09-06 | Run-flat tire with simplified process and comfort and safety |
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| CN107415599A CN107415599A (en) | 2017-12-01 |
| CN107415599B true CN107415599B (en) | 2023-07-28 |
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| CN201710798396.2A Active CN107415599B (en) | 2017-09-06 | 2017-09-06 | Run-flat tire with simplified process and comfort and safety |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7132098B2 (en) * | 2018-11-14 | 2022-09-06 | 株式会社ブリヂストン | tire |
| CN109795263B (en) * | 2019-02-13 | 2023-12-01 | 安徽佳通乘用子午线轮胎有限公司 | Optimized run-flat semi-finished tire |
| CN110815888B (en) * | 2019-11-18 | 2021-11-16 | 正新橡胶（中国）有限公司 | Tire processing and forming method |
| CN111016546B (en) * | 2019-12-31 | 2024-04-23 | 安徽佳通乘用子午线轮胎有限公司 | Winter tyre with staggered pattern blocks |
| CN114312168A (en) * | 2022-01-27 | 2022-04-12 | 青岛双星轮胎工业有限公司 | Support rubber and run-flat tire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347033A (en) * | 2016-10-19 | 2017-01-25 | 安徽佳通乘用子午线轮胎有限公司 | UHP tire for promoting high speed and durability |
| CN106739838A (en) * | 2016-12-30 | 2017-05-31 | 青岛双星轮胎工业有限公司 | Military all steel tubeless meridian tire |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001180227A (en) * | 1999-12-24 | 2001-07-03 | Sumitomo Rubber Ind Ltd | Tire for heavy load |
| JP5263271B2 (en) * | 2010-11-29 | 2013-08-14 | 横浜ゴム株式会社 | Run flat tire |
| JP5266307B2 (en) * | 2010-12-27 | 2013-08-21 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5432981B2 (en) * | 2011-12-29 | 2014-03-05 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5698775B2 (en) * | 2013-02-08 | 2015-04-08 | 住友ゴム工業株式会社 | Heavy duty pneumatic tire |
| JP5568657B1 (en) * | 2013-03-13 | 2014-08-06 | 株式会社ブリヂストン | Pneumatic tire |
| DE112014001367B4 (en) * | 2013-03-15 | 2024-02-08 | The Yokohama Rubber Co., Ltd. | Run-flat tires |
| CN204955940U (en) * | 2015-09-18 | 2016-01-13 | 安徽佳通乘用子午线轮胎有限公司 | Low noise non highway service tire of multisection distance |
| US11090981B2 (en) * | 2015-12-29 | 2021-08-17 | Pirelli Tyre S.P.A. | Tyre for vehicle wheels |
| CN207257267U (en) * | 2017-09-06 | 2018-04-20 | 安徽佳通乘用子午线轮胎有限公司 | A kind of run-flat tire of the comfortable safety of simplified technique |
-
2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347033A (en) * | 2016-10-19 | 2017-01-25 | 安徽佳通乘用子午线轮胎有限公司 | UHP tire for promoting high speed and durability |
| CN106739838A (en) * | 2016-12-30 | 2017-05-31 | 青岛双星轮胎工业有限公司 | Military all steel tubeless meridian tire |
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| CN107415599A (en) | 2017-12-01 |
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