CN101801688B - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
- Publication number
- CN101801688B CN101801688B CN200880106816.5A CN200880106816A CN101801688B CN 101801688 B CN101801688 B CN 101801688B CN 200880106816 A CN200880106816 A CN 200880106816A CN 101801688 B CN101801688 B CN 101801688B
- Authority
- CN
- China
- Prior art keywords
- slot part
- mentioned
- inclination
- vehicle
- grounding parts
- 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.)
- Expired - Fee Related
Links
Images
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
- B60C11/0304—Asymmetric 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
-
- 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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0381—Blind or isolated grooves
Abstract
A pneumatic tire simultaneously achieves improved water discharge characteristics and reduced noise. Fundamental water discharge performance is secured by providing a tread (12) with a first circumferential main groove (14), a second circumferential main groove (16), and a third circumferential main groove (18). V-shaped grooves (36) connected to the first circumferential main groove (14) are formed in a second land section (22) in a tread center region, and this secures water discharge characteristics and eliminates high frequency noise. On the other hand, L-shaped grooves (52) connected to the third circumferential main groove (18) are formed in a fourth land section (26) located on the side facing the vehicle, and this secures water discharge characteristics and eliminates high frequency noise. Excellent water discharge and low noise characteristics are simultaneously achieved by positioning the V-shaped grooves (36) on the side opposite the vehicle when the tire is mounted on it and positioning the L-shaped grooves (52) on the vehicle side.
Description
Technical field
The present invention relates to a kind of air-inflation tyre, particularly a kind of vehicle-width direction air-inflation tyre of the anti-irregular wear performance of inboard grounding parts that has improved when being installed on the vehicle.
Background technology
In paying attention to the summer grade tire of performance balance, adopt usually and made up the straight line major trough that circumferentially extends along tire and with respect to the block-type tread (with reference to patent documentation 1) of the cros-rib tread groove of tire peripheral, oblique.And, in order to obtain higher performance, make the tread contour left and right sides asymmetric.In addition, in directive decorative pattern, can there be the restriction rotation and unworkable problem, so adopts the decorative pattern that does not have directivity mostly.
And under the situation of the non-symmetrical design that does not have directivity, the cros-rib tread groove circumferentially has bigger angle with respect to tire.
And, in order to make wetland moisture film sliding performance, to be that drainage is good, can increase circumferential major trough usually, widen well width etc. and increase the groove area ratio of pattern block area (pattern groove with).But, when increasing circumferential major trough, have the high frequency noise that produces by the sympathetic response in the circumferential major trough tangible problem that becomes.
In the air-inflation tyre of so far the non-symmetrical design that does not have directivity, for be suppressed at do road surface, ground and wetland road surface when handling to vehicle one side flow, therefore can't dispose the cros-rib tread groove that circumferentially has less angle of inclination with respect to tire.
In the cros-rib tread groove made from respect to circumferentially have bigger angle of inclination, decorative pattern noise, drainage variation.
And; If configuration cros-rib tread groove then becomes block-type tread; If make block-type tread then because the reduction of block rigidity is not easy to guarantee the operation stabilization performance doing on ground, the wetland road surface, if eliminate this problem and make the circumferential pitch of cros-rib tread groove long when elongated, then become unfavorable because of generation noise etc.; Therefore, be difficult to obtain overall balance as tire.
Therefore, expectation can realize drainage and squeal of tire simultaneously, and further improves drainage and tire noise abatement performance.
Patent documentation 1: TOHKEMY 2004-306906 number
Summary of the invention
The present invention makes in order to address the above problem, and its purpose is to provide a kind of air-inflation tyre that can realize drainage and tire noise abatement property simultaneously and can obtain overall balance.
Technical scheme 1 described invention is a kind of air-inflation tyre; It has 3 circumferential major troughs at least on tyre surface; And the tread contour left and right sides is asymmetric; Wherein, This air-inflation tyre has V-shape groove and L font groove on tyre surface, above-mentioned V-shape groove is made up of the 1st inclination slot part and the 2nd inclination slot part: the circumferential major trough of the above-mentioned outermost vehicle-width direction outermost of the vehicle-width direction of the 1st inclination slot part self-configuring when vehicle is installed extends and in grounding parts, stops to a side of vehicle-width direction inboard and tire hand of rotation; Above-mentioned the 2nd inclination slot part terminal part in the grounding parts of above-mentioned the 1st inclination slot part extends to the opposite side of tire hand of rotation, and above-mentioned L font groove is made up of cros-rib tread slot part and auxiliary slot part: the inner circumferential major trough of the most inboard vehicle-width direction of the vehicle-width direction of above-mentioned cros-rib tread slot part self-configuring when vehicle is installed is to the inboard extension of vehicle-width direction and in grounding parts, stop; Above-mentioned auxiliary tank terminal part in the grounding parts of above-mentioned cros-rib tread slot part extends to the direction of intersecting with above-mentioned cros-rib tread slot part.
Then, technical scheme 1 described airtyred effect is described.
In technical scheme 1 described air-inflation tyre, on tyre surface, have 3 circumferential major troughs at least, if at the circumferential major trough that is provided with on the tyre surface more than 3, then can guarantee basic drainage performance.
Through circumferential major trough more than 3 is being set on the tyre surface, the tyre surface center side on tyre surface is provided with 2 row middle sections (2 row grounding parts) at least, can guarantee in the basic operation stabilization performance of doing on ground, the wetland road surface.And; Through circumferential major trough more than 3 is being set on the tyre surface; Can tyre surface be divided into clearly the two side areas in the tread width direction outside of middle section and the middle section of tread width direction center side; Can to irregular wear require harsh two side areas help preventing irregular wear setting, middle section is helped doing the setting of ground, wetland, drainage performance, thereby can be on each zone separation function clearly.
Tyre surface is made non-symmetrical design, and therefore, the vehicle-width direction in the time of can be on being installed in vehicle is inboard payes attention to wearing and tearing, pay attention to drainage separation function in this wise in the vehicle-width direction outside.
Be provided with V word shape groove in the vehicle-width direction inboard of the outermost circumferential major trough of vehicle-width direction, thus the 1st inclination slot part that extends from the circumferential major trough of outermost can be efficiently laterally circumferential major trough discharge the water of (middle section promptly) in the grounding parts at the 1st inclination slot part place.
And; It is crooked from several the 2nd the circumferential major trough ground of outermost that the V-shape groove that is connected with outermost circumferential major trough does not run through; Therefore; Can prevent since from from several the 2nd the circumferential major troughs of outermost to this V-shape concentrated flow go into and in the V-shape groove, produce turbulent flow, can further improve the drainage efficiency of V-shape groove.
And the V-shape groove is crooked on the way and divide the expenditure length overall long groove from outermost circumferential major trough, thereby the long branch's groove of such length overall can be eliminated near higher frequency that circumferential major trough produces (for example, the sound 1kHz).
Like this, the V-shape groove can help drainage and tire noise abatement performance.
In addition; Lean on the inboard grounding parts (so-called tire shoulder grounding parts) of vehicle-width direction to go up configuration L font groove than being configured in the most inboard inner circumferential major trough of vehicle-width direction when being installed on the vehicle; Through this L font groove is connected with inner circumferential major trough; Thereby can be suppressed at the high frequency noise that produces in the inner circumferential major trough, even, also can guarantee drainage further in order to tackle noise, irregular wear and the grounding parts will be installed on the vehicle time is set at the rib shape.
Through in this wise with the V-shape groove be configured in tyre surface be installed on the vehicle time the outside, with L font groove be configured in tyre surface be installed on the vehicle time the inboard, thereby can realize good drainage and noise abatement property simultaneously, can obtain overall balance.
Technical scheme 2 described inventions are that in technical scheme 1 described air-inflation tyre, above-mentioned the 2nd inclination slot part stops in grounding parts.
Then, technical scheme 2 described airtyred effects are described.
Through the 2nd inclination slot part that constitutes the V-shape groove is stopped in grounding parts; Thereby can guarantee to guarantee in the operation stabilization performance of doing on road surface, ground and the wetland road surface from being configured in the grounding parts rigidity of the circumferential major trough of the outermost outermost of vehicle-width direction to the inboard grounded part (tire middle section) of vehicle-width direction.
And, stop in grounding parts through making the 2nd inclination slot part, make the V-shape groove be merely one, thereby the Tire High Frequency noise is had significant effect towards the open end of circumferential major trough.
Then, technical scheme 3 described airtyred effects are described.
For the opening portion towards circumferential major trough of V-shape groove, that is, the 1st inclination slot part is preferably set to 20 °～70 ° to the angle of inclination of the open end portion of the circumferential major trough of outermost (circumferential with respect to tire) when considering drainage.That is,, can obtain higher drainage through this angle of inclination being set at 20 °～70 °.In addition, when this angle of inclination during less than 20 °, near the grounding parts rigidity the open end is not enough, and road-holding property, irregular wear property are brought bad influence.On the other hand, when this angle of inclination during greater than 70 °, having preferably, this advantage point of drainage dies down.
In addition, the angle of inclination of V-shape groove in groove and non-constant, near the open end for bigger angle, near near (bonding part of the 1st inclination slot part and the 2nd inclination slot part) gradual change such as diminish gradually crooked, also more favourable to drainage, road-holding property.And; The angle of inclination more preceding than this bending, angle of inclination after the bending circumferentially diminished with respect to tire; Promptly; The angle that the 2nd inclination slot part is circumferential with respect to tire (near the circumferential angle of tire) is set at less than the 1st inclination slot part angle circumferential with respect to tire; Thereby can be with the grounded part that is formed with the V-shape groove along circumferentially cutting apart, it is best can under the state of the grounding parts rigidity of guaranteeing fore-and-aft direction, making lateral rigidity, can be implemented in and do the good road-holding property of balance on road surface, ground and the wetland road surface.
Technical scheme 4 described inventions are that in each described air-inflation tyre, above-mentioned auxiliary slot part circumferentially extends along tire, in grounding parts, stops in technical scheme 1～technical scheme 3.
Then, technical scheme 4 described airtyred effects are described.
L font groove stops with approaching circumferential state after bending, thereby can guarantee the grounding parts rigidity, can guarantee to do the operation stabilization performance on road surface, ground and the wetland road surface.And because L font groove is not connected with other grooves that are different from circumferential major trough, the high frequency noise when therefore reduction being gone is favourable.
Technical scheme 5 described inventions are that in each described air-inflation tyre, the pitch of above-mentioned V-shape groove is grown up long in the pitch of above-mentioned L font groove in technical scheme 1～technical scheme 4.
Then, technical scheme 5 described airtyred effects are described.
The circumferential pitch length that is positioned at the V-shape groove in the vehicle-width direction outside when will be on being installed on vehicle is set at circumferential pitch greater than L font groove when long; The V-shape groove can further help to improve drainage; L font groove is positioned at than the inboard position of the vehicle-width direction of V-shape groove when being installed on the vehicle; Therefore, be set at greater than the circumferential pitch of L font groove longly through the circumferential pitch length that makes the V-shape groove, can suppress a kind of step-like wearing and tearing as irregular wear.And, because the slot length of V-shape groove and the slot length of L font have greatly changed, therefore, can on each groove, change the frequency-response data of the high frequency noise that produces when going, further have effect to reducing squeal of tire.
Technical scheme 6 described inventions are in technical scheme 1～technical scheme 5, in each described air-inflation tyre, above-mentioned cros-rib tread slot part and above-mentioned auxiliary slot part angulation to be set at 90 °.
Then, technical scheme 6 described airtyred effects are described.
Cros-rib tread slot part and auxiliary slot part angulation are set at 90 °, thereby can guarantee to be formed with the rigidity that is positioned at grounding parts inboard when being installed on the vehicle of L font groove, can improve anti-irregular wear property thus.
As stated, air-inflation tyre of the present invention is a said structure, has can realize improving drainage simultaneously and reduce the so good effect of squeal of tire.
Description of drawings
Fig. 1 is the birds-eye view of the airtyred tyre surface of an embodiment of the invention.
Fig. 2 is the birds-eye view of airtyred tyre surface of example in the past.
Description of reference numerals
10: air-inflation tyre; 12: tyre surface; 14: the 1 circumferential major troughs (the circumferential major trough of vehicle-width direction outermost); 16: the 2 circumferential major troughs; 18: the 3 circumferential major troughs (the inner circumferential major trough of vehicle-width direction); 20: the 1 grounding parts; 22: the 2 grounding parts; 24: the 3 grounding parts; 26: the 4 grounding parts; 36:V font groove; 36A: the 1st inclination slot part; 36B: the 2nd inclination slot part; 52:L font groove; 52A: cros-rib tread slot part; 52B: circumferential slot part (auxiliary slot part)
The specific embodiment
Below, the air-inflation tyre 10 of the embodiment that present invention will be described in detail with reference to the accompanying.
The tyre surface 12 of the air-inflation tyre 10 of this embodiment tire equator face CL be installed on the vehicle time the outside (OUT of arrow shown in figure direction side is the outside when being installed on the vehicle) be formed with the 1st circumferential major trough 14; Tire equator face CL be installed on the vehicle time inboard (arrow IN direction side is the inboard when being installed on the vehicle) be formed with the 2nd circumferential major trough 16; The 2nd circumferential major trough 16 be installed on the vehicle time the inboard be formed with the 3rd circumferential major trough 18; The 1st circumferential major trough 14 be installed on the vehicle time the outside divide the 1st grounding parts 20 arranged; Between the 1st circumferential major trough 14 and the 2nd circumferential major trough 16, divide the 2nd grounding parts 22 is arranged; Between the 2nd circumferential major trough 16 and the 3rd circumferential major trough 18, dividing has the 3rd grounding parts 24, the 3rd circumferential major trough 18 be installed on the vehicle time the inboard division the 4th grounding parts 26 is arranged.
Circumferentially alternately be formed with the 1st cros-rib tread groove 28 of transversal the 1st grounding parts and the 2nd cros-rib tread groove 30 that in grounding parts, stops from the extension of ground terminal 12E side direction tire equatorial plane CL side in the 1st grounding parts 20 upper edges.And, on the 1st grounding parts 20, be formed with the 1st tire sipe 32 that extends along circumferentially, and the 2nd tire sipe 34 that the 2nd cros-rib tread groove 30 and the 1st circumferential major trough 14 are coupled together.
In addition; Be meant on the standard wheel rim that air-inflation tyre 10 is installed to JATMA YEAR BOOK (2007, Japanese car tire association criterion) defined at this ground terminal 12E that mentions, maximum load ability (the boldface type load of interior pressure-load capacity corresponding tables) the cooresponding air pressure (maximum empty atmospheric pressure) of the suitable specification among filling and the JATMA YEAR BOOK, level tire is 100% the interior pressure part when having the maximum load ability.In that land used or manufactured place are used under the situation of TRA standard, ETRTO standard, confirm according to standard separately.
On the 2nd grounding parts 22, upwards be formed with to devices spaced apart many V-shape grooves 36 in tire week; This V-shape groove 36 is made up of the 1st inclination slot part 36A and the 2nd inclination slot part 36B; The inboard of above-mentioned the 1st inclination slot part 36A when the 1st circumferential major trough 14 is on being installed on vehicle be the circumferential diagonally extending and in grounding parts, stopping towards the upper left side with respect to tire, and the outside of above-mentioned the 2nd inclination slot part 36B when terminal part is on being installed on vehicle in the grounding parts of the 1st inclination slot part 36A circumferentially tilts towards the lower right with respect to tire and in grounding parts, stop and the angle of inclination circumferential with respect to tire is set at the angle of inclination circumferential with respect to tire less than the 1st inclination slot part 36A.
At this, preferably that the open end portion of the 1st inclination slot part 36A is circumferential with respect to tire angle of inclination is set at 20 °～70 °.
And, on the extended line that is being formed at the 1st cros-rib tread groove 28 on the 1st grounding parts 20 on the 2nd grounding parts 22, be formed with the 3rd short cros-rib tread groove 40.
In addition, on the 2nd grounding parts 22, be formed with the 3rd tire sipe 42 that centre portion and the 1st circumferential major trough 14 with the 1st inclination slot part 36A couple together and with the centre portion of the end of the 2nd inclination slot part 36B and the 4th tire sipe 44 that the 2nd circumferential major trough 16 couples together.In addition; Well width became zero well width, or does not have the meaning of decorative pattern of the incision shape of well width when tire sipe was meant grounding parts ground connection; When grounding parts ground connection, the opposed facing cell wall of tire sipe fits tightly each other strongly, therefore; For the inc groove, this tire sipe is kept to seldom the reduction of grounding parts rigidity with respect to ground connection the time.
Like this, the 2nd grounding parts 22 is not upwards separated in week by V-shape groove 36, forms at the continuous rib that makes progress in week.
Form an end and the 3rd circumferential major trough 18 is connected, the other end stops the 5th tire sipe 46 on the 3rd grounding parts 24 in grounding parts, be formed with circular hole 47 at the grounding parts terminal part of the 5th tire sipe 46.That is, the 3rd grounding parts 24 is not upwards separated in week by inc groove when the ground connection, forms at the continuous rib that makes progress in week.
The 4th grounding parts 26 disposes 2 row in ground terminal 12E side and circumferentially disposes the recess row 50 that a plurality of recesses 48 form along tire.In addition, 2 recess row 50 are configured in the position of leaning on ground terminal 12E side than the Width center of the 4th grounding parts 26.
Shape for the recess when overlooking tyre surface 12 48 does not have special qualification, but preferably has the straight line portion that circumferentially extends along tire in the tire equator face CL side of the peristome of tyre surface ground plane.As shown in Figure 1, the recess 48 of this embodiment is the length of side trapezoidal that the distolateral length of side of ground connection is shorter than tire equator face CL side.
In addition, the tire equator face CL side of the recess 48 on the 4th grounding parts 26 upwards disposes to devices spaced apart a plurality of L font grooves 52 in tire week.
Inc groove did not upwards separate in week when the 4th grounding parts 26 also was grounded, and formed at the continuous rib that makes progress in week.
In addition, in this embodiment, cros-rib tread slot part 52A and circumferential slot part 52B angulation be less than 90 °, but also can be 90 °, also can be greater than 90 °.
And as shown in Figure 1, tyre surface 12 is a non-symmetrical design in the air-inflation tyre 10 of this embodiment, but does not specify hand of rotation.
And, in the air-inflation tyre 10 of this embodiment, set the pitch length of V-shape groove 36 long greater than the pitch of L font groove 52.
Effect
In the air-inflation tyre 10 of this embodiment,, therefore, can guarantee basic drainage performance owing on tyre surface 12, be provided with the 1st circumferential major trough the 14, the 2nd circumferential major trough 16 and 3 circumferential major troughs of the 3rd circumferential major trough 18 these totals.
Through 3 circumferential major troughs are set on tyre surface 12; Can tyre surface 12 be divided into clearly the two side areas 12S in the tread width direction outside of middle section 12C and the middle section 12C of tread width direction center side on Width; Can require harsh two side areas 12S to be set to irregular wear to help preventing irregular wear, middle section 12C is set at helps doing ground, wetland, drainage performance, thereby become the structure of separation function clearly.
Because the 2nd inclination slot part 36B that constitutes V-shape groove 36 is stopped in the 2nd grounding parts 22, the 2nd grounding parts 22 is formed rib, therefore, can guarantee the grounding parts rigidity of the 2nd grounding parts 22, can guarantee the operation stabilization performance on road surface, dried ground and wetland road surface.In addition, the 3rd grounding parts 24 also forms rib, therefore can guarantee the grounding parts rigidity of the 3rd grounding parts 24, can guarantee the operation stabilization performance on road surface, dried ground and wetland road surface.That is, on the middle section 12C that can have bigger benefit on the fetus face 12 to the operation stabilization performance, be provided with the 2nd grounding parts 22 and the 3rd grounding parts 24 these 2 row ribs, therefore, can in doing ground, wetland road surface, guarantee higher operation stabilization performance.
And, in the air-inflation tyre 10 of this embodiment, make tyre surface 12 be non-symmetrical design, therefore, the vehicle-width direction in the time of can be on being installed in vehicle is inboard payes attention to wearing and tearing, pay attention to the such separation function of drainage in the vehicle-width direction outside.
At this; The vehicle-width direction inboard of vehicle-width direction the outermost the 1st circumferential major trough 14 when being installed on the vehicle on the tyre surface 12 is provided with V-shape groove 36, the 1st inclination slot part 36A that extends from the 1st circumferential major trough 14 can be when wetland goes with laterally the 1st circumferential major trough 14 discharges effectively of the water of the 2nd grounding parts 22.That is, can be effectively water the 1st circumferential major trough 14 laterally of the middle section 12C of tyre surface 12 be discharged, improve wetland moisture film sliding performance.
In this embodiment; The angle of inclination of the tipper part of V-shape groove 36 is also non-constant in groove; Near the open end with respect to tire circumferentially with bigger angle tilt, near crooked (near the bonding part of the 1st inclination slot part 36A and the 2nd inclination slot part 36B) diminish gradually; Therefore, also more favourable to drainage, road-holding property.And; The angle of inclination more preceding than this bending, angle of inclination after the bending diminished, that is, the angle initialization that the 2nd inclination slot part 36B is circumferential with respect to tire is less than the 1st inclination slot part 36A angle circumferential with respect to tire; Therefore; Can be with the 2nd grounding parts 22 that is formed with V-shape groove 36 along circumferentially cutting apart, it is best can under the state of the grounding parts rigidity of guaranteeing fore-and-aft direction, making lateral rigidity, can be implemented in and do the good road-holding property of balance on road surface, ground and the wetland road surface.
And the 2nd circumferential major trough 16 ground that V-shape groove 36 does not run through tire equator face CL side are crooked, therefore, can prevent can further improve drainage efficiency owing to from the turbulent flow of the 2nd circumferential major trough 16 in the V-shape groove that these V-shape groove 36 inflows produce.
In addition; The V-shape groove 36 that is connected with the 1st circumferential major trough 14 is crooked on the way and divide the groove of length of expenditure length overall from the 1st circumferential major trough; The 2nd inclination slot part 36B is stopped in the 2nd grounding parts 22; Therefore, branch's groove that such length overall is long can be eliminated near the higher frequency that produces at the 1st circumferential major trough 14 (for example, 1kHz) noise (sonorant) effectively.
That is, V-shape groove 36 can help drainage and tire noise abatement property significantly.
In addition; On tyre surface 12; From than being configured in the 3rd the most inboard circumferential major trough 18 of vehicle-width direction when being installed on the vehicle, therefore, can utilize L font groove 52 to be suppressed at the high frequency noise of generation in the 3rd circumferential major trough 18 to the inboard configuration of vehicle-width direction L font groove 52; Even further in order to tackle noise, irregular wear the 4th the most inboard grounding parts 26 be set at the rib shape, also can guarantee the drainage that vehicle-width direction is inboard.
In addition,, therefore, can guarantee the grounding parts rigidity of the 4th grounding parts 26 after bending, can guarantee in the operation stabilization performance of doing on road surface, ground and the wetland road surface because L font groove 52 stops with approaching circumferential state.And, because L font groove 52 is not connected with the 3rd circumferential major trough 18 groove in addition, therefore, help lowering in motion high frequency noise.
In addition; The circumferential pitch length that is positioned at the V-shape groove 36 in the vehicle-width direction outside in the time of will be on being installed on vehicle is set at circumferential pitch greater than L font groove 52 when long; V-shape groove 36 can further help to improve drainage; L font groove 52 is positioned at than the inboard position of the vehicle-width direction of V-shape groove 36 when being installed on the vehicle; Therefore, be set at greater than the circumferential pitch of L font groove longly through the circumferential pitch length that makes V-shape groove 36, can suppress a kind of step-like wearing and tearing as irregular wear.And, because the slot length of V-shape groove 36 and the slot length of L font groove 52 have greatly changed, therefore, can on each groove, change the frequency-response data of the high frequency noise that produces when going, further have effect to reducing squeal of tire.
Like this, the outside when being installed on the vehicle through V-shape groove 36 is configured in is configured in the inboard when being installed on the vehicle with L font groove 52, thereby can realizes good drainage and noise abatement property simultaneously.
In addition, if the angle of inclination of the open end portion of the 1st inclination slot part 36A of V-shape groove 36 is during less than 20 °, then near the grounding parts rigidity the open end is not enough, and road-holding property, irregular wear property are brought harmful effect.On the other hand, when this angle of inclination during greater than 70 °, to drainage preferably advantage point die down.
Other embodiments
The 4th the most inboard grounding parts 26 when being installed on the vehicle is that irregular wear is required harsh grounding parts; But the cros-rib tread slot part 52A through with L font groove 52 is set at 90 ° with circumferential slot part 52B angulation; The rigidity of the 4th grounding parts 26 can be guaranteed, the anti-irregular wear performance of the 4th grounding parts 26 can be improved.
Test Example
For clear and definite effect of the present invention, the air-inflation tyre of preparing routine in the past air-inflation tyre and using embodiments of the invention has carried out the irregular wear test.
Embodiment: be air-inflation tyre with tread contour of above-mentioned embodiment.In addition, its groove depth is 8.3mm.The well width of the 1st circumferential major trough is 8.5mm, and the well width of the 2nd circumferential major trough is 9.0mm, and the well width of the 3rd circumferential major trough is 7.5mm.The width of the 1st grounding parts is 30mm, and the width of the 2nd grounding parts is 35mm, and the width of the 3rd grounding parts is 13.2mm, and the width of the 4th grounding parts is 32mm.On the other hand, the angle of inclination of V-shape groove is 45 ° in the 1st circumferential major trough side, is 30 ° near curve.And the circumferential pitch of V-shape groove is long to be 58mm, and the circumferential pitch of L font groove is long to be 28mm.
Routine in the past: as to be air-inflation tyre with tread contour shown in Figure 2.In addition; In tyre surface shown in Figure 2 100, Reference numeral 102,104,106,108 is circumferential major trough, and Reference numeral 110,112,114,116,118 is a grounding parts; Reference numeral 120,122,123 is the cros-rib tread groove; Reference numeral 124,126,127 is a tire sipe, and Reference numeral 128 is the curved slot of the roughly L font that is made up of cros-rib tread slot part 128A and the circumferential 128B of major trough portion, and Reference numeral 130,132 is recess triangular in shape when overlooking tire tread form; Reference numeral 134 is from the tire sipe of recess 130 to the distolateral extension of tyre surface, and Reference numeral 100E is a ground terminal.In addition, the groove depth of cros-rib tread slot part 128A and the circumferential major trough 128B of portion is respectively 7.5mm, and the width of cros-rib tread slot part 128A is 3mm, and length is 12mm, and circumferentially the width of the 128B of major trough portion is 4mm, and length is 12mm.
In addition, at embodiment and in the past in the example, tire size is 195/65R15.
Moisture film sliding performance test: the feeling evaluation that is the test drives person when producing moisture film and slide the wetland road surface of hump speed through depth of water 5mm.This evaluation is 100 with routine exponential representation in the past, and the big more expression performance of numerical value is good more.
Doing road surface, ground operation stabilization performance can test: the feeling evaluation that is the test drives person when motion is gone on the route of doing the ground state with various driving modes.This evaluation is 100 with routine exponential representation in the past, and the big more expression performance of numerical value is good more.
Wetland road surface operation stabilization performance can be tested: be with on the general road of wetland state, the move test drives person's when going feeling evaluation of various driving modes.This evaluation is 100 with routine exponential representation in the past, and the big more expression performance of numerical value is good more.
Tire (decorative pattern) noise testing: the feeling evaluation that is the test drives person when on the general road of doing the ground state, going with various driving modes.This evaluation is 100 with routine exponential representation in the past, and the big more expression performance of numerical value is good more.
Ride comfort property testing: the feeling evaluation that is the test drives person when on the general road of doing the ground state, going with various driving modes.This evaluation is 100 with routine exponential representation in the past, and the big more expression performance of numerical value is good more.
Anti-irregular wear performance testing: be when on the general road of doing the ground state, going with various driving modes, face the diff-H abrasion loss between the decorative pattern bulk mutually behind the 50km that goes.With the exponential representation reciprocal of the height residual quantity of example in the past is 100, and it is good more to set the big more anti-irregular wear performance of numerical value.
Table 1
| ? | Routine in the past | Embodiment |
| Moisture film sliding performance (craspedodrome) | 100 | 111 |
| Do road surface, ground operation |
100 | 108 |
| Wetland road surface operation |
100 | 110 |
| Tire (decorative pattern) |
100 | 112 |
| Travelling |
100 | 106 |
| |
100 | 102 |
Can know that from test results the air-inflation tyre of using embodiments of the invention is with respect to routine in the past air-inflation tyre, all performances all are improved.
Claims (10)
1. air-inflation tyre, it has 3 circumferential major troughs at least on tyre surface, and the tread contour left and right sides is asymmetric, wherein,
This air-inflation tyre has V-shape groove and L font groove on tyre surface,
Above-mentioned V-shape groove is made up of the 1st inclination slot part and the 2nd inclination slot part: the circumferential major trough of the above-mentioned outermost vehicle-width direction outermost of the vehicle-width direction of the 1st inclination slot part self-configuring when vehicle is installed extends to the vehicle-width direction inboard and to a side of tire hand of rotation, and in grounding parts, stops; Above-mentioned the 2nd inclination slot part terminal part in the grounding parts of above-mentioned the 1st inclination slot part extends to the opposite side of tire hand of rotation,
Above-mentioned L font groove is made up of cros-rib tread slot part and auxiliary slot part: the inner circumferential major trough of the most inboard vehicle-width direction of the vehicle-width direction of above-mentioned cros-rib tread slot part self-configuring when vehicle is installed extends and in grounding parts, stops to vehicle-width direction is inboard; Above-mentioned auxiliary slot part terminal part in the grounding parts of above-mentioned cros-rib tread slot part extends to the direction of intersecting with above-mentioned cros-rib tread slot part.
2. air-inflation tyre according to claim 1, wherein,
Above-mentioned the 2nd inclination slot part stops in grounding parts.
3. air-inflation tyre according to claim 2, wherein,
Above-mentioned the 1st inclination slot part angle of inclination circumferential with respect to tire is set at 20 °～70 ° in the open end office of the circumferential major trough of above-mentioned outermost, above-mentioned the 2nd inclination slot part with respect to the circumferential angle of inclination of tire less than above-mentioned the 1st inclination slot part angle of inclination circumferential with respect to tire.
4. according to each described air-inflation tyre in the claim 1～3, wherein,
Above-mentioned auxiliary slot part circumferentially extends along tire, in grounding parts, stops.
5. according to each described air-inflation tyre in the claim 1～3, wherein,
The pitch of above-mentioned V-shape groove is grown up long in the pitch of above-mentioned L font groove.
6. air-inflation tyre according to claim 4, wherein,
The pitch of above-mentioned V-shape groove is grown up long in the pitch of above-mentioned L font groove.
7. according to each described air-inflation tyre in the claim 1～3, wherein,
Above-mentioned cros-rib tread slot part and above-mentioned auxiliary slot part angulation are set at 90 °.
8. air-inflation tyre according to claim 4, wherein,
Above-mentioned cros-rib tread slot part and above-mentioned auxiliary slot part angulation are set at 90 °.
9. air-inflation tyre according to claim 5, wherein,
Above-mentioned cros-rib tread slot part and above-mentioned auxiliary slot part angulation are set at 90 °.
10. air-inflation tyre according to claim 6, wherein,
Above-mentioned cros-rib tread slot part and above-mentioned auxiliary slot part angulation are set at 90 °.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007238426A JP5165975B2 (en) | 2007-09-13 | 2007-09-13 | Pneumatic tire |
| JP2007-238426 | 2007-09-13 | ||
| PCT/JP2008/065963 WO2009034912A1 (en) | 2007-09-13 | 2008-09-04 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101801688A CN101801688A (en) | 2010-08-11 |
| CN101801688B true CN101801688B (en) | 2012-09-19 |
Family
ID=40451921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880106816.5A Expired - Fee Related CN101801688B (en) | 2007-09-13 | 2008-09-04 | Pneumatic tire |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5165975B2 (en) |
| CN (1) | CN101801688B (en) |
| WO (1) | WO2009034912A1 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5133635B2 (en) * | 2007-09-12 | 2013-01-30 | 株式会社ブリヂストン | Pneumatic tire |
| JP5233787B2 (en) * | 2009-03-25 | 2013-07-10 | 横浜ゴム株式会社 | Pneumatic tire |
| JP5346673B2 (en) * | 2009-04-30 | 2013-11-20 | 株式会社ブリヂストン | tire |
| JP4521473B1 (en) * | 2009-05-29 | 2010-08-11 | 株式会社ブリヂストン | tire |
| JP5607425B2 (en) * | 2010-05-25 | 2014-10-15 | 株式会社ブリヂストン | Pneumatic tire |
| JP5567417B2 (en) * | 2010-07-15 | 2014-08-06 | 株式会社ブリヂストン | Pneumatic tire |
| EP2692546B1 (en) * | 2011-03-28 | 2016-09-28 | Bridgestone Corporation | Pneumatic tire |
| JP5557875B2 (en) * | 2012-05-18 | 2014-07-23 | 株式会社ブリヂストン | Pneumatic tire |
| JP5969891B2 (en) * | 2012-10-19 | 2016-08-17 | 東洋ゴム工業株式会社 | Pneumatic tire |
| JP5890796B2 (en) * | 2013-04-11 | 2016-03-22 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5898640B2 (en) * | 2013-04-23 | 2016-04-06 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP6106053B2 (en) * | 2013-09-09 | 2017-03-29 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5657773B1 (en) * | 2013-12-12 | 2015-01-21 | 株式会社ブリヂストン | tire |
| DE112014006246T9 (en) | 2014-01-23 | 2017-01-19 | The Yokohama Rubber Co., Ltd. | tire |
| JP5983788B2 (en) | 2015-01-22 | 2016-09-06 | 横浜ゴム株式会社 | Pneumatic tire |
| JP6672718B2 (en) * | 2015-11-06 | 2020-03-25 | 横浜ゴム株式会社 | Pneumatic tire |
| JP6614949B2 (en) * | 2015-12-03 | 2019-12-04 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Pneumatic tire |
| JP7035740B2 (en) | 2018-04-06 | 2022-03-15 | 住友ゴム工業株式会社 | tire |
| JP7091897B2 (en) * | 2018-07-12 | 2022-06-28 | 住友ゴム工業株式会社 | tire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032917A (en) * | 2006-03-06 | 2007-09-12 | 株式会社普利司通 | Pneumatic tire |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3177466B2 (en) * | 1997-02-06 | 2001-06-18 | 住友ゴム工業株式会社 | Pneumatic tire |
| EP1029712B1 (en) * | 1999-02-20 | 2004-05-06 | Continental Aktiengesellschaft | Vehicle tyre |
| ITMI991447A1 (en) * | 1999-06-30 | 2000-12-30 | Pirelli | HIGH PERFORMANCE TIRE FOR A VEHICLE |
| WO2002078982A1 (en) * | 2001-03-30 | 2002-10-10 | Pirelli Pneumatici S.P.A. | Tread pattern for car tire |
| JP4402393B2 (en) * | 2003-08-01 | 2010-01-20 | 株式会社ブリヂストン | Pneumatic tire |
| KR101066806B1 (en) * | 2003-10-01 | 2011-09-22 | 요코하마 고무 가부시키가이샤 | Pneumatic tire |
| JP4511253B2 (en) * | 2004-06-15 | 2010-07-28 | 株式会社ブリヂストン | Pneumatic tire |
| WO2006033383A1 (en) * | 2004-09-24 | 2006-03-30 | Bridgestone Corporation | Pneumatic tire |
| JP4595503B2 (en) * | 2004-11-22 | 2010-12-08 | 横浜ゴム株式会社 | Pneumatic tire |
| JP4615969B2 (en) * | 2004-11-24 | 2011-01-19 | 株式会社ブリヂストン | Pneumatic tire |
| JP2007237795A (en) * | 2006-03-06 | 2007-09-20 | Bridgestone Corp | Pneumatic tire |
| JP4808142B2 (en) * | 2006-12-11 | 2011-11-02 | セイコープレシジョン株式会社 | Printer |
-
2007
- 2007-09-13 JP JP2007238426A patent/JP5165975B2/en not_active Expired - Fee Related
-
2008
- 2008-09-04 CN CN200880106816.5A patent/CN101801688B/en not_active Expired - Fee Related
- 2008-09-04 WO PCT/JP2008/065963 patent/WO2009034912A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032917A (en) * | 2006-03-06 | 2007-09-12 | 株式会社普利司通 | Pneumatic tire |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-1312A 2006.01.05 |
| JP特开2006-143138A 2006.06.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009034912A1 (en) | 2009-03-19 |
| JP2009067255A (en) | 2009-04-02 |
| JP5165975B2 (en) | 2013-03-21 |
| CN101801688A (en) | 2010-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101801688B (en) | Pneumatic tire | |
| CN100473547C (en) | Heavy-load pneumatic tire | |
| CN102837564B (en) | Pneumatic tyre | |
| CN101554829B (en) | Pneumatic tire | |
| JP4394161B1 (en) | Pneumatic tire | |
| CN100509448C (en) | Pneumatic tire | |
| CN103802608B (en) | Pneumatic tire | |
| CN105644274B (en) | Pneumatic tire | |
| CN101890881B (en) | Pneumatic tire | |
| JP5250016B2 (en) | Pneumatic tire | |
| US8474496B2 (en) | Pneumatic tire with tread having cutaway portions formed in center rib | |
| CN102555679B (en) | Air-inflation tyre | |
| EP1872973B1 (en) | Pneumatic tire | |
| CN102310723B (en) | Pneumatic tire | |
| US8225833B2 (en) | Pneumatic tire | |
| CN101588934B (en) | Pneumatic tire | |
| CN103381741A (en) | Pneumatic tire | |
| KR101719836B1 (en) | Pneumatic tire | |
| JP5753375B2 (en) | Pneumatic tire | |
| CN107639975B (en) | Tyre for vehicle wheels | |
| CN103204033A (en) | Heavy Duty Pneumatic Tire | |
| JP2007161114A (en) | Pneumatic tire | |
| CN109070648A (en) | Pneumatic tire | |
| CN103009935A (en) | Pneumatic tire | |
| JP2013052872A (en) | Pneumatic tire |
Legal Events
| 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: 20120919 Termination date: 20200904 |