CN104029566A - Tire tread pattern for electric two-wheeled vehicle - Google Patents
Tire tread pattern for electric two-wheeled vehicle Download PDFInfo
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- CN104029566A CN104029566A CN201410193803.3A CN201410193803A CN104029566A CN 104029566 A CN104029566 A CN 104029566A CN 201410193803 A CN201410193803 A CN 201410193803A CN 104029566 A CN104029566 A CN 104029566A
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- tire tread
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- tyre surface
- wheel vehicle
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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
Abstract
The invention discloses a tire tread pattern for an electric two-wheeled vehicle. A tire tread is formed by cutting a plurality of pattern groove sets which are symmetrically arranged relative to the central line of the tire tread; each pattern groove set comprises main pattern grooves and auxiliary pattern grooves, wherein the main pattern grooves slope down from positions close to the central line of the tire tread, and extend outwards to penetrate through the edge of the tire tread, presenting a gradually-widening trend; a continuous grounding area is formed between the two symmetrical main pattern grooves of the tire tread; at least one zigzag auxiliary pattern groove is arranged at the positions of tire shoulders which are close to the near middles of the main pattern grooves; thin grains are evenly distributed at the entire periphery of the tire tread and cross the tire tread from one side to the other side but not penetrate through the edge of the tire tread; the thin grains are in the shape of waves formed by combining various amplitudes, and symmetrically extend relative to the central line of the tire tread; the direction of wave peaks in the central line of the tire tread is consistent with the running direction of a tire; an amplitude in the center is larger than amplitudes on the two sides. The pattern disclosed by the invention can ensure rolling resistance, and at the same time, improve the braking performance, so that the operation requirements of tires for the electric two-wheeled vehicle are fulfilled.
Description
Technical field
The present invention relates to a kind of air-inflation tyre, refer to especially a kind of electric two-wheel vehicle tire tread pattern.
Background technology
The electric two-wheel vehicle of China is as Electrical Bicycle, battery-operated motor cycle and Segway Human Transporter etc. at present, and the battery overwhelming majority of use is lead-acid battery and lithium cell, and the length of endurance is the power saving performance problem that normally customer pays close attention to the most of vehicle.And along with electric two-wheel vehicle quantity on road surface constantly increases, the traffic accident that it causes and the potential safety hazard of existence cause extensive concern, relevant statutory standard also in studying and defining successively, is wherein to need to strengthen the project improved for the deceleration and stopping performance of travel safety.
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 larger continuous ground area, thereby reduce rolling resistance, reaches power saving effect.But smooth tyre surface easily makes tire not enough at earth-grasping force dry, wetland, affects deceleration and stopping performance, causes the generation of potential safety hazard, particularly at wet-skid road surfaces such as ponding, rainy days, strengthens deceleration and stopping performance shortening braking distance particularly important.Industry also had for deceleration and stopping performance and improved research in the past, but often sacrificed rolling resistance performance, and the province that cannot comprehensively meet electric two-wheel vehicle electrically and security requirement.In view of the above problems, under prior carcass structure and the constant prerequisite of sizing compound formula, the present invention produces thus.
Summary of the invention
The object of this invention is to provide a kind of electric two-wheel vehicle tire tread pattern, to reaching when affecting rolling resistance performance, do not strengthen deceleration and stopping performance, promote the safety of driving.
For achieving the above object, solution of the present invention is:
An electric two-wheel vehicle tire tread pattern, tyre surface is to be formed by some groove group cuttings, each groove group is that relative circumferential line is symmetrical arranged; Each groove group comprises main groove, secondary groove, main groove is downward from the inclined position near circumferential line, the perforation tread edge that stretches out is gradually wide trend, between the main groove of tyre surface two symmetries, form continuous ground area, the secondary groove of at least 1 broken line type is set at the tire shoulder position near the nearly middle part of main groove; Wherein at tyre surface circle, be evenly distributed with close grain, this close grain from tyre surface one side across to opposite side but non-through tread edge, its shape is set to the wavy of various amplitude combination, being that relative circumferential line is symmetrical extends, and the crest trend 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 15% ~ 35% tyre surface overall width between the main groove of tyre surface two symmetries.
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 80% ~ 95% tyre surface overall width, and closed at both ends is in tyre surface.
The spacing distance of described circumferential adjacent close grain is arranged to 20% ~ 50% adjacent groove group spacing distance.
The center amplitude of described close grain is greater 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 set to 20% ~ 50% the main groove degree of depth.
Each crest, the trough of described close grain all adopt fillet setting, and the radius of the fillet of the fillet of center crest, transition trough and the fillet of tire shoulder crest is all set to 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 tyre surface overall width that distance between described both sides transition trough is 15% ~ 35%, the tyre surface overall width that the transition trough of the same side and the distance of tire shoulder crest are 10% ~ 30%.
Electric two-wheel vehicle tire tread pattern of the present invention, by arranging on the tyre surface in streamline ditch decorative pattern form from tyre surface one side across to opposite side but the close grain of non-through tread edge, its shape is set to the wavy of various amplitude combination, crest trend on circumferential line is consistent with tire running direction, center amplitude is greater than both sides amplitude, optimize each crest simultaneously, the parameter of trough, can guarantee that rolling resistance performance increases deceleration and stopping performance simultaneously, reach the operating needs of tire for electric two-wheel vehicle.
Accompanying drawing explanation
Fig. 1 is the tread void 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 protector of the present invention.
Secondary groove 30 close grains of the main groove 20 of 1 tyre surface 10
31 center crest 32 transition trough 33 tire shoulder crests.
The specific embodiment
Below in conjunction with accompanying drawing, explain embodiments of the present invention:
As Fig. 1 to Fig. 3, the present invention has disclosed a kind of electric two-wheel vehicle and has designed with pattern structure on tire tread.Tyre surface 1 is to be formed by some groove group cuttings, and each groove group is that relative circumferential line is symmetrical arranged.Each groove group comprises main groove 10, secondary groove 20, wherein main groove 10 is from the inclined position near circumferential line is downward, perforation tread edge stretches out, main groove 10 aftermost breadth W2 are set to the inner width W 1 of 1.5 times ~ 3 times, integral body is gradually wide trend, to guarantee basic drainage performance.Between the main groove 10 of tyre surface two symmetries, form continuous ground area, its width S is arranged to 15% ~ 35% tyre surface overall width TW, and smooth tyre surface can not only obtain preferably wear hardness, and the creep loss of simultaneously travelling is few, helps to reduce rolling resistance.In addition, secondary groove 20(the present embodiment that at least 1 broken line type is set at the tire shoulder position near main groove 10 nearly middle parts is 1), the width W 3 of secondary groove 20 is set to be less than or equal to the inner width W 1 of main groove 10, coordinate strengthening tire shoulder drainage, make tire there is better slip resistance.
As shown in Figure 2, for reinforced tire deceleration and stopping performance, at tyre surface 1 circle, be evenly distributed with close grain 30, this close grain 30 from tyre surface one side across to opposite side but non-through tread edge, its two ends width L is arranged to 80% ~ 95% tyre surface overall width TW, closed at both ends can significantly not reduce tire shoulder rigidity in tyre surface, affects curved performance.The spacing distance P1 of circumferential adjacent close grain 30 is arranged to 20% ~ 50% adjacent groove group spacing distance P, be that close grain 30(the present embodiment of 2 ~ 5 groups is set between every 1 groove group is 2 groups), if close grain 30 is too intensive, although can reach the effect of strengthening deceleration and stopping performance, but undue weakening tyre surface rigidity, sacrifices rolling resistance performance.
For the difference tyre surface central area use demand different with dual-side region, the energy of all playing superiority when making tire in craspedodrome and turning, the shape of close grain 30 is set to the wavy of various amplitude combination.Specifically in conjunction with shown in Fig. 3: close grain 30 is the symmetrical extensions of relative circumferential line, consistent with tire running direction (arrow points in accompanying drawing 2) in circumferential line Shang center crest 31 trends, and center amplitude H1 is greater than both sides amplitude H2, preferred center amplitude H1 is the both sides amplitude H2 of 2 times ~ 5 times.The width W 4 of close grain 30 is set to 0.5mm ~ 1.5mm, and the degree of depth of close grain 30 is set to 20% ~ 50% main groove 10 degree of depth, optimizes width, the depth parameter of close grain 30, is to consider based on balance tyre surface rigidity and deceleration and stopping performance.Each crest, the trough of close grain 30 all adopt fillet setting, avoid wedge angle to produce 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 all set to 2mm ~ 6mm.And center crest 31 included angle A, transition trough 32 included angle B and tire shoulder crest 33 angle C are gradually large designs successively, be included angle A < included angle B < angle C, preferably included angle A is 20 ° ~ 40 °, and included angle B is 45 ° ~ 65 °, and angle C is 65 ° ~ 85 °.Crest 31 included angle A settings in center are less, in order to be formed centrally height close grain longitudinally in tyre surface, tire can increase deceleration and stopping performance while keeping straight on and guarantee rolling resistance performance simultaneously, and gradually large transition trough 32 and tire shoulder crest 33 angles are in order to form higher horizontal close grain at tire shoulder in both sides, to guarantee curved stability, prevent from skidding.Distance L 1 between both sides transition trough 32 is set to 15% ~ 35% tyre surface overall width TW, and the transition trough 32 of the same side is set to 10% ~ 30% tyre surface overall width TW with the distance L 2 of tire shoulder crest 33.
To sum up, by arranging on the tyre surface in streamline ditch decorative pattern form from tyre surface one side across to opposite side but the close grain 30 of non-through tread edge, its shape is set to the wavy of various amplitude combination, consistent with tire running direction in circumferential line Shang center crest 31 trends, and center amplitude H1 is greater than both sides amplitude H2, optimize the fillet of each Wave crest and wave trough, the parameters such as angle, can increase deceleration and stopping performance and guarantee rolling resistance performance simultaneously, guarantee curved stability simultaneously.
The above, be only to explain preferred embodiments of the present invention, not the present invention done to any pro forma restriction.Every technical solution of the present invention content that do not depart from, makes any simple modification, modification and equivalent variations according to its essence, still belongs to the scope of technical solution of the present invention.
Embodiment:
Test method: the cover tire that is 14X2.80 by specification is installed on 14 cun of Electrical Bicycles, and fill with standard pressure, at dry asphalt surface, with the endurance length of once charging, evaluate rolling resistance performance, the longer expression rolling resistance of endurance is lower, and its performance is better; At wet-skid road surface, using 20km/h and measure brake to the distance stopping as average velociity, braking distance is shorter, and expression deceleration and stopping performance is better.
Upper table is depicted as the result by existing structure and comparative example, embodiment are tested to gained, adopts as seen tire drag performance and deceleration and stopping performance after technical solution of the present invention all to get a promotion.
Key point of the present invention is by arranging on the tyre surface in streamline ditch decorative pattern form from tyre surface one side across to opposite side but the close grain of non-through tread edge, its shape is set to the wavy of various amplitude combination, crest trend on circumferential line is consistent with tire running direction, center amplitude is greater than both sides amplitude, optimize each crest simultaneously, the parameter of trough, can guarantee that rolling resistance performance increases deceleration and stopping performance simultaneously, reaches the operating needs of tire for electric two-wheel vehicle.
Claims (12)
1. an electric two-wheel vehicle tire tread pattern, tyre surface is to be formed by some groove groups cuttings, each groove group is that relative circumferential line is symmetrical arranged; Each groove group comprises main groove, secondary groove, main groove is downward from the inclined position near circumferential line, the perforation tread edge that stretches out is gradually wide trend, between the main groove of tyre surface two symmetries, form continuous ground area, the secondary groove of at least 1 broken line type is set at the tire shoulder position near the nearly middle part of main groove; It is characterized in that: at tyre surface circle, be evenly distributed with close grain, this close grain from tyre surface one side across to opposite side but non-through tread edge, its shape is set to the wavy of various amplitude combination, being that relative circumferential line is symmetrical extends, and the crest trend on circumferential line is consistent with tire running direction.
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, between the main groove of tyre surface two symmetries, form continuous ground area width and be arranged to 15% ~ 35% tyre surface overall width.
3. electric two-wheel vehicle tire tread pattern as claimed in claim 1 or 2, is characterized 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, is characterized in that: described close grain two ends width is arranged to 80% ~ 95% tyre surface overall width, and closed at both ends is in tyre surface.
5. electric two-wheel vehicle tire tread pattern as claimed in claim 1, is characterized in that: the spacing distance of described circumferential adjacent close grain is arranged to 20% ~ 50% adjacent groove group spacing distance.
6. electric two-wheel vehicle tire tread pattern as claimed in claim 1, is characterized in that: the center amplitude of described close grain is greater than both sides amplitude.
7. electric two-wheel vehicle tire tread pattern as claimed in claim 1, is characterized in that: the center amplitude of described close grain is the both sides amplitude of 2 times ~ 5 times.
8. electric two-wheel vehicle tire tread pattern as claimed in claim 1, is characterized in that: the width of described close grain is set to 0.5mm ~ 1.5mm, and the degree of depth of close grain is set to 20% ~ 50% the main groove degree of depth.
9. electric two-wheel vehicle tire tread pattern as claimed in claim 1, it is characterized in that: each crest, the trough of described close grain all adopt fillet setting, the radius of the fillet of the fillet of center crest, transition trough and the fillet of tire shoulder crest is all set to 2mm ~ 6mm.
10. electric two-wheel vehicle tire tread pattern as claimed in claim 1, is characterized in that: described center crest angle is less than transition trough angle, and transition trough angle is less than tire shoulder crest angle.
11. electric two-wheel vehicle tire tread patterns as claimed in claim 10, is characterized in that: described center crest angle is 20 ° ~ 40 °, and transition trough angle is 45 ° ~ 65 °, and tire shoulder crest angle is 65 ° ~ 85 °.
12. electric two-wheel vehicle tire tread patterns as claimed in claim 1, it is characterized in that: the tyre surface overall width that the distance between described both sides transition trough is 15% ~ 35%, the tyre surface overall width that the transition trough of the same side and the distance of tire shoulder crest are 10% ~ 30%.
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 |
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| Publication Number | Publication Date |
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| CN104029566A true CN104029566A (en) | 2014-09-10 |
| CN104029566B CN104029566B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410193803.3A Active CN104029566B (en) | 2014-05-09 | 2014-05-09 | electric two-wheel vehicle tire tread pattern |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260614A (en) * | 2000-03-23 | 2001-09-26 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2003118322A (en) * | 2001-10-17 | 2003-04-23 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| KR20100052683A (en) * | 2008-11-11 | 2010-05-20 | 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 |
-
2014
- 2014-05-09 CN CN201410193803.3A patent/CN104029566B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260614A (en) * | 2000-03-23 | 2001-09-26 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2003118322A (en) * | 2001-10-17 | 2003-04-23 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| KR20100052683A (en) * | 2008-11-11 | 2010-05-20 | 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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| CN104029566B (en) | 2016-08-17 |
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