CN104029566B - electric two-wheel vehicle tire tread pattern - Google Patents
electric two-wheel vehicle tire tread pattern Download PDFInfo
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- CN104029566B CN104029566B CN201410193803.3A CN201410193803A CN104029566B CN 104029566 B CN104029566 B CN 104029566B CN 201410193803 A CN201410193803 A CN 201410193803A CN 104029566 B CN104029566 B CN 104029566B
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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
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Abstract
The invention discloses a kind of electric two-wheel vehicle tire tread pattern, tyre surface is to be formed by the cutting of some groove groups, and each groove group is that relative circumferential line is symmetrical arranged；Each groove group comprises main groove, secondary groove, main groove from the inclined position near circumferential line downwards, the through tread edge that stretches out is in the widest trend, form continuous ground area between the main groove of tyre surface two symmetry, the secondary groove of at least 1 broken line type is set at the shoulder region near the nearly middle part of main groove；Wherein it is evenly distributed with close grain at tyre surface circle, this close grain from tyre surface side across to opposite side but non-through tread edge, it is shaped to the wavy of various amplitude combination, it is that relative circumferential line is symmetrically extended, the crest trend being on circumferential line is consistent with tire running direction, and center amplitude is more than both sides amplitude.Can ensure that resistance to rolling increases braking ability simultaneously, reach the use requirement of electric two-wheel vehicle tire.
Description
Technical field
The present invention relates to a kind of pneumatic tire, particularly relate to a kind of electric two-wheel vehicle tire tread pattern.
Background technology
Electric two-wheel vehicle such as electric bicycle, battery-operated motor cycle and the Segway Human Transporter etc. of China at present, the battery overwhelming majority of use is lead-acid battery and lithium battery, and the length of the endurance i.e. power saving performance of vehicle is typically the problem that consumer pays close attention to the most.And along with on road surface electric two-wheel vehicle quantity be continuously increased, the potential safety hazard of its vehicle accident caused and existence causes extensive concern, relevant statutory standard is also in studying and defining successively, and the braking ability for travel safety is the project wherein needing to strengthen improving.
Traditional electric two-wheel vehicle tire is for considering power saving performance, and its tread contour is typically designed to streamline ditch form, to obtain bigger continuous ground area, reduces resistance to rolling thus reaches power saving effect.But, smooth tyre surface easily makes tire not enough at earth-grasping force dry, wetland, affects braking ability, causes the generation of potential safety hazard, particularly at the wet-skid road surface such as hydrops, rainy day, strengthens braking ability shortening braking distance particularly important.In the past industry also had and improved research for braking ability, the most often sacrificed resistance to rolling performance, it is impossible to meet the province of electric two-wheel vehicle electrically and security requirement comprehensively.In view of the above problems, on the premise of prior carcass structure and sizing compound formula are constant, the present invention thus produces.
Summary of the invention
It is an object of the invention to provide a kind of electric two-wheel vehicle tire tread pattern, to reaching to strengthen braking ability while not affecting resistance to rolling performance, promote the safety of driving.
For achieving the above object, the solution of the present invention is:
A kind of electric two-wheel vehicle tire tread pattern, tyre surface is to be formed by the cutting of some groove groups, and each groove group is that relative circumferential line is symmetrical arranged；Each groove group comprises main groove, secondary groove, main groove from the inclined position near circumferential line downwards, the through tread edge that stretches out is in the widest trend, form continuous ground area between the main groove of tyre surface two symmetry, the secondary groove of at least 1 broken line type is set at the shoulder region near the nearly middle part of main groove；Wherein it is evenly distributed with close grain at tyre surface circle, this close grain from tyre surface side across to opposite side but non-through tread edge, it is shaped to the wavy of various amplitude combination, being that relative circumferential line is symmetrically extended, the crest trend being on circumferential line is consistent with tire running direction.
Described main groove aftermost breadth is set to the inner width of 1.5 times ~ 3 times, forms continuous ground area width and be arranged to the whole tread width of 15% ~ 35% between the main groove of tyre surface two symmetry.
The width of described secondary groove is less than or equal to the inner width of main groove.
Described close grain two ends width is arranged to the whole tread width of 80% ~ 95%, and closed at both ends is in tyre surface.
The spacing distance of described circumferentially-adjacent close grain is arranged to the adjacent groove group spacing distance of 20% ~ 50%.
The center amplitude of described close grain is more than both sides amplitude.
The center amplitude of described close grain is the both sides amplitude of 2 times ~ 5 times.
The width of described close grain is set to 0.5mm ~ 1.5mm, and the degree of depth of close grain is then set to the main groove depth of 20% ~ 50%.
Each crest of described close grain, trough all use fillet to arrange, and the radius of the fillet of the fillet of center crest, the fillet of transition trough and tire shoulder crest is disposed as 2mm ~ 6mm.
Described center crest angle is less than transition trough angle, and transition trough angle is less than tire shoulder crest angle.
Described center crest angle is 20 ° ~ 40 °, and transition trough angle is 45 ° ~ 65 °, and tire shoulder crest angle is 65 ° ~ 85 °.
The whole tread width that distance is 10% ~ 30% of the whole tread width that distance is 15% ~ 35% between described both sides transition trough, the transition trough of the same side and close grain outer end, the same side.
Electric two-wheel vehicle tire tread pattern of the present invention, by arranging on the tyre surface of streamline ditch decorative pattern form from tyre surface side across to opposite side but the close grain of non-through tread edge, it is shaped to the wavy of various amplitude combination, the crest trend being on circumferential line is consistent with tire running direction, center amplitude is more than both sides amplitude, optimize each crest simultaneously, the parameter of trough, can ensure that resistance to rolling performance increases braking ability simultaneously, reach the use requirement of electric two-wheel vehicle tire.
Accompanying drawing explanation
Fig. 1 is the tread groove schematic diagram of tire of the present invention；
Fig. 2 is the tread contour configuration schematic diagram of tire of the present invention；
Fig. 3 is one group of close grain schematic diagram of tire tread of the present invention.
1 tyre surface
The secondary groove of 10 main grooves 20
30 close grains
31 center crest 32 transition troughs
33 tire shoulder crests.
Detailed description of the invention
Below in conjunction with accompanying drawing explanation embodiments of the present invention:
Design as Fig. 1 to Fig. 3 present invention is disclosed a kind of electric two-wheel vehicle pattern structure on tire tread.Tyre surface 1 is to be formed by the cutting of some groove groups, and each groove group is that relative circumferential line is symmetrical arranged.Each groove group comprises main groove 10, secondary groove 20, the most main groove 10 is downward from the inclined position near circumferential line, stretch out through tread edge, main groove 10 aftermost breadth W2 is set to the inner width W1 of 1.5 times ~ 3 times, i.e. overall in the widest trend, to ensure basic drainage performance.Forming continuous ground area between the main groove 10 of tyre surface two symmetry, its width S is arranged to the whole tread width TW of 15% ~ 35%, and smooth tyre surface can not only obtain preferably wear hardness, travels creep loss less simultaneously, helps to reduce resistance to rolling.Additionally, the secondary groove 20(the present embodiment arranging at least 1 broken line type at the shoulder region near the main nearly middle part of groove 10 is 1), the width W3 of secondary groove 20 is set smaller than or is equal to the inner width W1 of main groove 10, coordinate strengthening tire shoulder drainage, make tire have more preferable slip resistance.
As shown in Figure 2, for fortified tyre braking ability, it is evenly distributed with close grain 30 at tyre surface 1 circle, this close grain 30 from tyre surface side across to opposite side but non-through tread edge, its two ends width L is arranged to the whole tread width TW of 80% ~ 95%, closed at both ends will not be greatly reduced tire shoulder rigidity in tyre surface, affected curved performance.The spacing distance P1 of circumferentially-adjacent close grain 30 is arranged to the adjacent groove group spacing distance P of 20% ~ 50%, the close grain 30(the present embodiment arranging 2 ~ 5 groups between the most every 1 groove group is 2 groups), if close grain 30 is the most intensive, although can reach the effect strengthening braking ability, but undue weakening tyre surface rigidity, sacrifices resistance to rolling performance.
For the use demand that difference tyre surface central area is different with dual-side region, energy of all playing superiority when making tire in craspedodrome and turn, close grain 30 is shaped to the wavy of various amplitude combination.Specifically combine shown in Fig. 3: close grain 30 is that relative circumferential line is symmetrically extended, center crest 31 trend being on circumferential line is consistent with tire running direction (arrow in accompanying drawing 2 points to), and center amplitude H1 is more than the both sides amplitude H2 that both sides amplitude H2, preferred center amplitude H1 are 2 times ~ 5 times.The width W4 of close grain 30 is set to 0.5mm ~ 1.5mm, and the degree of depth of close grain 30 is then set to main groove 10 degree of depth of 20% ~ 50%, optimizes the width of close grain 30, depth parameter, is to consider based on balance tyre surface rigidity and braking ability.Each crest of close grain 30, trough all use fillet to arrange, it is to avoid wedge angle produces breach phenomenon, and the radius of the fillet R3 of the fillet R1 of center crest 31, the fillet R2 of transition trough 32 and tire shoulder crest 33 is disposed as 2mm ~ 6mm.And center crest 31 included angle A, transition trough 32 included angle B and tire shoulder crest 33 angle C are the biggest designs, i.e. < < angle C, preferably included angle A are 20 ° ~ 40 ° to included angle B to included angle A, and included angle B is 45 ° ~ 65 °, and angle C is 65 ° ~ 85 °.Center crest 31 included angle A arranges less, it is to be formed centrally high longitudinal close grain in the tread, tire can increase braking ability when keeping straight on and ensure resistance to rolling performance simultaneously, and the biggest transition trough 32 in both sides and tire shoulder crest 33 angle are to form higher horizontal close grain at tire shoulder, to guarantee curved stability, prevent from skidding.Distance L1 between both sides transition trough 32 is set to the whole tread width TW of 15% ~ 35%, and distance L2 of the transition trough 32 of the same side and the same side close grain 30 outer end is set to the whole tread width TW of 10% ~ 30%.
To sum up, by arranging on the tyre surface of streamline ditch decorative pattern form from tyre surface side across the close grain 30 to opposite side but non-through tread edge, it is shaped to the wavy of various amplitude combination, center crest 31 trend being on circumferential line is consistent with tire running direction, and center amplitude H1 is more than both sides amplitude H2, optimize the fillet of each Wave crest and wave trough, the parameter such as angle, braking ability can be increased and ensure resistance to rolling performance simultaneously, guarantee curved stability simultaneously.
The above, be only the preferred embodiments explaining the present invention, the present invention not make any pro forma restriction.Every make any simple modification, modification and equivalent variations without departing from technical solution of the present invention content according to its essence, still fall within the scope of technical solution of the present invention.
Embodiment:
Method of testing: the cover tire that specification is 14X2.80 is installed on 14 cun of electric bicycles, and it is filled with standard pressure, evaluating resistance to rolling performance at dry asphalt surface with the endurance length once charged, endurance the longest expression resistance to rolling is the lowest, i.e. its performance is the best；Measuring brake distance to stopping using 20km/h as average speed at wet-skid road surface, braking distance is the shortest, represents that braking ability is the best.
Upper table show the result by existing structure and comparative example, embodiment carry out testing gained, it is seen that use the tire drag performance after technical solution of the present invention and braking ability all to get a promotion.
The key point of the present invention is by arranging on the tyre surface of streamline ditch decorative pattern form from tyre surface side across to opposite side but the close grain of non-through tread edge, it is shaped to the wavy of various amplitude combination, the crest trend being on circumferential line is consistent with tire running direction, center amplitude is more than both sides amplitude, optimize each crest simultaneously, the parameter of trough, it is ensured that resistance to rolling performance increases braking ability simultaneously, reaches the use requirement of electric two-wheel vehicle tire.
Claims (11)
1. an electric two-wheel vehicle tire tread pattern, tyre surface is to be formed by the cutting of some groove groups, and each groove group is that relative circumferential line is symmetrical arranged；Each groove group comprises main groove, secondary groove, main groove from the inclined position near circumferential line downwards, the through tread edge that stretches out is in the widest trend, form continuous ground area between the main groove of tyre surface two symmetry, the secondary groove of at least 1 broken line type is set at the shoulder region near the nearly middle part of main groove；It is characterized in that: be evenly distributed with close grain at tyre surface circle, this close grain from tyre surface side across to opposite side but non-through tread edge, it is shaped to the wavy of various amplitude combination, being that relative circumferential line is symmetrically extended, the crest trend being on circumferential line is consistent with tire running direction；The center amplitude of described close grain is more than both sides amplitude.
2. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterized in that: described main groove aftermost breadth is set to the inner width of 1.5 times ~ 3 times, form continuous ground area width between the main groove of tyre surface two symmetry and be arranged to the whole tread width of 15% ~ 35%.
3. electric two-wheel vehicle tire tread pattern as claimed in claim 1 or 2, it is characterised in that: the width of described secondary groove is less than or equal to the inner width of main groove.
4. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterised in that: described close grain two ends width is arranged to the whole tread width of 80% ~ 95%, and closed at both ends is in tyre surface.
5. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterised in that: the spacing distance of described circumferentially-adjacent close grain is arranged to the adjacent groove group spacing distance of 20% ~ 50%.
6. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterised in that: the center amplitude of described close grain is the both sides amplitude of 2 times ~ 5 times.
7. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterised in that: the width of described close grain is set to 0.5mm ~ 1.5mm, and the degree of depth of close grain is then set to the main groove depth of 20% ~ 50%.
8. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterized in that: each crest of described close grain, trough all use fillet to arrange, the radius of the fillet of the fillet of center crest, the fillet of transition trough and tire shoulder crest is disposed as 2mm ~ 6mm.
9. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterised in that: described center crest angle is less than transition trough angle, and transition trough angle is less than tire shoulder crest angle.
10. electric two-wheel vehicle tire tread pattern as claimed in claim 9, it is characterised in that: described center crest angle is 20 ° ~ 40 °, and transition trough angle is 45 ° ~ 65 °, and tire shoulder crest angle is 65 ° ~ 85 °.
11. electric two-wheel vehicle tire tread patterns as claimed in claim 8, it is characterized in that: the whole tread width that distance is 15% ~ 35% between described both sides transition trough, the transition trough of the same side and the whole tread width that distance is 10% ~ 30% of close grain outer end, the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193803.3A CN104029566B (en) | 2014-05-09 | 2014-05-09 | electric two-wheel vehicle tire tread pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193803.3A CN104029566B (en) | 2014-05-09 | 2014-05-09 | electric two-wheel vehicle tire tread pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104029566A CN104029566A (en) | 2014-09-10 |
| CN104029566B true CN104029566B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410193803.3A Active CN104029566B (en) | 2014-05-09 | 2014-05-09 | electric two-wheel vehicle tire tread pattern |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4382241B2 (en) * | 2000-03-23 | 2009-12-09 | 東洋ゴム工業株式会社 | Pneumatic radial tire |
| JP3682918B2 (en) * | 2001-10-17 | 2005-08-17 | 東洋ゴム工業株式会社 | Pneumatic tire |
| KR100987097B1 (en) * | 2008-11-11 | 2010-10-12 | 한국타이어 주식회사 | Pneumatic vehicle tire |
| CN203331749U (en) * | 2013-07-01 | 2013-12-11 | 厦门正新橡胶工业有限公司 | Tire tread structure for two-wheeled vehicle |
| CN203460618U (en) * | 2013-08-06 | 2014-03-05 | 厦门正新橡胶工业有限公司 | Pneumatic tire tread pattern structure for low-rolling-resistance motorcycle |
| CN203844549U (en) * | 2014-05-09 | 2014-09-24 | 厦门正新橡胶工业有限公司 | Tread pattern of tire for electric two-wheeled vehicle |
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2014
- 2014-05-09 CN CN201410193803.3A patent/CN104029566B/en active Active
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| CN104029566A (en) | 2014-09-10 |
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