CN103085605A - Longitudinal pattern of tire tread for performance improvement - Google Patents
Longitudinal pattern of tire tread for performance improvement Download PDFInfo
- Publication number
- CN103085605A CN103085605A CN2012104341735A CN201210434173A CN103085605A CN 103085605 A CN103085605 A CN 103085605A CN 2012104341735 A CN2012104341735 A CN 2012104341735A CN 201210434173 A CN201210434173 A CN 201210434173A CN 103085605 A CN103085605 A CN 103085605A
- Authority
- CN
- China
- Prior art keywords
- tire
- waveform
- circumferential pattern
- road surface
- ground plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
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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
-
- 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
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
-
- 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
- B60C11/0327—Tread patterns characterised by special properties of the tread pattern
- B60C11/033—Tread patterns characterised by special properties of the tread pattern by the void or net-to-gross ratios of the patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides longitudinal patterns of a tire tread for performance improvement which can guarantee stable grounding length of a tire when a vehicle is driving on wet roads in rains. In multiple grooves (1) which are formed in rotation directions of a tire and longitudinal patterns of a tire tread formed by multiple pattern blocks (2) which are positioned between the grooves (1) and are in contact with the road, road grounding surfaces of the longitudinal pattern blocks (2) are provided with wavy grounding surfaces (3) which form right angles with the driving directions of the tire, and the wavy grounding surfaces (3) are sine-wave shaped or cosine-wave shaped.
Description
Technical field
Can guarantee stable ground contact length, the circumferential pattern (Rib) that be used for the tire protector of raising wetland (Wet) performance of tire when the present invention relates to travel on road surface wet in rainwater.
Background technology
Usually, automobile roughly is divided into circumferential pattern (Rib) type and cros-rib tread (Lug) type with the tread design of tire wheel, the former circumferential pattern type tire is by along the continuous groove of the hand of rotation of tire and the tire that forms with the contacted pattern block in road surface, and the latter's cros-rib tread type tire is by along the rectangular groove of the hand of rotation of tire and the tire that forms with the contacted pattern block in road surface.
Except above-mentioned tread design, also have circumferential pattern-cros-rib tread mixed type tire and take at the center of the hand of rotation of tyre surface as the tire of the different non-symmetrical tread design of left and right, border layout.
The present invention relates to the tread design of the circumferential pattern type tire in the tread design of above-mentioned tire, usually, when the tire of the tread design of circumferential pattern type travels on the road surface of ponding, water enters between the tyre surface of road surface and tire, produces the hydroplaning phenomenon (hydroplaning) of the propagation function of the power between tire and road surface that loses.The hydroplaning phenomenon of tire is that tire separates and natant phenomenon with the road surface when car is run at high speed on wet road surface, the situation of such hydroplaning phenomenon occurs when automobile travels on wet road when raining, be that the item of direct relation is arranged with the safety of chaufeur, just need to ensure the technical capacity that more stablely to travel.
Therefore, one of the key element that can solve the hydroplaning phenomenon of tire is the ground contact length (Footlength) of tire, when travelling on wet road surface, produce fluid interaction between tire protector and road surface, thereby have the ground contact length that makes the tire of the contacted area minimizing of tire and road surface because of this fluid interaction.
Namely, as shown in Figure 1, the tyre surface 100 of general circumferential pattern type tire is formed with along the continuous groove 101 of the hand of rotation of tire, dispose between these grooves 101 and the contacted circumferential pattern piece 102 in road surface, but in existing circumferential pattern type tire, the ground plane 103 of above-mentioned circumferential pattern piece 102 forms smooth ground plane, therefore, when travelling on the road surface of wetting, reduce the problem of the road-holding property, stability and the deceleration and stopping performance that reduce tire thereby have because the fluid interaction that produces between tire protector and road surface makes ground contact area in rainwater.
Summary of the invention
Here, the present invention invents in order to solve above-mentioned existing problem, its purpose is to provide a kind of circumferential pattern of the tire protector for improving the wetland performance, can guarantee the long ground contact length of more stable tire when travelling on its road surface wet in rainwater, improve thus road-holding property, stability and the deceleration and stopping performance of tire.
In order to reach above-mentioned purpose, the present invention is in the circumferential pattern of a plurality of grooves that formed by the hand of rotation along tire and the tire protector that is disposed between these grooves and forms with the contacted a plurality of circumferential pattern pieces in road surface, the road surface ground plane of described each circumferential pattern piece is formed with respect to the rectangular waveform ground plane of the travel direction of tire, and described waveform ground plane forms have sine (Sine) waveform or cosine (Consine) waveform.
Description of drawings
Fig. 1 is the part sectional view of circumferential pattern type tire protector in the past.
Fig. 2 means the part sectional view according to the tire protector of the circumferential pattern shape of tire protector of the present invention.
Fig. 3 is A cutaway view partly shown in Figure 2.
Fig. 4 means the comparison simulated diagram of variation of the ground contact length of tire protector of the present invention and tire protector in the past.
The specific embodiment
Below, present invention will be described in detail with reference to the accompanying.
In Fig. 2, expression has been suitable for tire protector 1 of the present invention, and Fig. 3 is the enlarged drawing of the A part shown in Fig. 2.
The present invention is a kind of circumferential pattern of tire protector, comprise a plurality of grooves 1 that formed by the hand of rotation along tire and be disposed between these grooves 1 and with the contacted a plurality of circumferential pattern pieces 2 in road surface, wherein, the road surface ground plane of described each circumferential pattern piece 2 is formed with respect to the rectangular waveform ground plane 3 of the travel direction of tire, and described waveform ground plane 3 forms has sine waveform or cosine waveform.
Here, described waveform ground plane 3 forms sine waveform or cosine waveform, and its period definition is the width K of circumferential pattern piece 2, and its width K is the cycle of described waveform.In addition, amplitude a is defined as between-0.15～+ 0.15, and be defined as following formula 1., formula 2..
a×sinX［（1/2）K<X<2K，-0.15<a<0.15］…①
a×cosX［0<X<（3/2）K，-0.15<a<0.15］…②
On the other hand, Fig. 4 means the figure of the simplation verification result of the ground pressure of the present invention and tire protector in the past and ground contact length, if ground contact length is elongated as circular shape as can be known, when speed increases, tyre surface ground contact length of the present invention is compared with tyre surface ground contact length in the past, its ground contact area broadens, therefore, in the present invention, form waveform ground plane 3 by the road surface ground plane that makes described circumferential pattern piece 2, ground pressure is larger, ground contact length is wider longer thereby the increase ground contact area makes.
In addition, about described waveform ground plane 3, by form central part 31 and two terminal parts 32 of circumferential pattern piece 2 in the peaked mode that calculates sine waveform and cosine waveform, from the central part 31 of circumferential pattern piece 2 to two terminal part extrusion fluids, when travelling, can improve the reply performance for the hydroplaning phenomenon on ponding 3mm or higher road surface.
In addition, two terminal parts 32 of the waveform ground plane 3 of described circumferential pattern piece 2 adopt the peaked reason of sine waveforms and cosine waveform to be: when the water on the road surface is when travelling under 3mm or less wetland condition, the pressure that two terminal parts 32 of described circumferential pattern piece 2 have risen plays the effect of cutting off fluid.
Above the present invention makes when travelling on the wetland road surface tyre surface ground contact length of tire broaden elongated, improves road-holding property, stability and the braking ability of tire.
The above circumferential pattern according to the tire protector for improving the wetland performance of the present invention can be guaranteed more stable wider ground contact length on the wetland road surface, therefore, be improved the effect of road-holding property, stability and the deceleration and stopping performance of tire.
Claims (3)
1. circumferential pattern that be used for to improve the tire protector of wetland performance, it is characterized in that, described circumferential pattern comprise a plurality of grooves (1) that form along the hand of rotation of tire and be disposed between described a plurality of groove (1) and with the contacted a plurality of circumferential pattern pieces in road surface (2)
The road surface ground plane of each described circumferential pattern piece (2) is formed with respect to the rectangular waveform ground plane of the travel direction of tire (3), and described waveform ground plane (3) forms has sine waveform or cosine waveform.
2. the decorative pattern of the tire protector for improving the wetland performance according to claim 1, is characterized in that,
The period definition of described sine waveform or cosine waveform is the width K of circumferential pattern piece (2), and amplitude a is defined as between-0.15～+ 0.15, and be defined as following formula 1., formula 2.:
a×sinX［（1/2）K<X<2K，-0.15<a<0.15］…①，
a×cosX［0<X<（3/2）K，-0.15<a<0.15］…②。
3. the decorative pattern of the tire protector for improving the wetland performance according to claim 1, is characterized in that,
The central part (31) of described waveform ground plane (3) and two terminal parts (32) are that the peaked mode that calculates sine waveform and cosine waveform forms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0113315 | 2011-11-02 | ||
| KR1020110113315A KR101362945B1 (en) | 2011-11-02 | 2011-11-02 | Rib of tire tread for wet performance improvement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103085605A true CN103085605A (en) | 2013-05-08 |
| CN103085605B CN103085605B (en) | 2016-08-10 |
Family
ID=48198935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210434173.5A Expired - Fee Related CN103085605B (en) | 2011-11-02 | 2012-11-02 | For improving the annular ribs of the tire tread of wetland performance |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101362945B1 (en) |
| CN (1) | CN103085605B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178645Y (en) * | 1993-03-08 | 1994-10-05 | 华丰橡胶工业股份有限公司 | Tyre |
| WO1995018022A1 (en) * | 1993-12-27 | 1995-07-06 | Hirohisa Fukata | Tire for vehicle |
| JP2000071719A (en) * | 1998-09-02 | 2000-03-07 | Bridgestone Corp | Pneumatic tire |
| EP1676728A1 (en) * | 2004-12-28 | 2006-07-05 | The Goodyear Tire & Rubber Company | Siped tire tread |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06166304A (en) * | 1992-09-22 | 1994-06-14 | Bridgestone Corp | Pneumatic tire |
| JP3533246B2 (en) * | 1993-11-05 | 2004-05-31 | 株式会社ブリヂストン | Pneumatic tire |
-
2011
- 2011-11-02 KR KR1020110113315A patent/KR101362945B1/en active IP Right Grant
-
2012
- 2012-11-02 CN CN201210434173.5A patent/CN103085605B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178645Y (en) * | 1993-03-08 | 1994-10-05 | 华丰橡胶工业股份有限公司 | Tyre |
| WO1995018022A1 (en) * | 1993-12-27 | 1995-07-06 | Hirohisa Fukata | Tire for vehicle |
| JP2000071719A (en) * | 1998-09-02 | 2000-03-07 | Bridgestone Corp | Pneumatic tire |
| EP1676728A1 (en) * | 2004-12-28 | 2006-07-05 | The Goodyear Tire & Rubber Company | Siped tire tread |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101362945B1 (en) | 2014-02-18 |
| CN103085605B (en) | 2016-08-10 |
| KR20130048459A (en) | 2013-05-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20171102 |