CN104417279A - Tire - Google Patents
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- Publication number
- CN104417279A CN104417279A CN201410437049.3A CN201410437049A CN104417279A CN 104417279 A CN104417279 A CN 104417279A CN 201410437049 A CN201410437049 A CN 201410437049A CN 104417279 A CN104417279 A CN 104417279A
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- circumferential slot
- tire
- groove
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1369—Tie bars for linking block elements and bridging the groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0304—Asymmetric patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
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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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
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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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0348—Narrow grooves, i.e. having a width of less than 4 mm
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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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0355—Circumferential grooves characterised by depth
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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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
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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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0386—Continuous ribs
- B60C2011/0393—Narrow ribs, i.e. having a rib width of less than 8 mm
- B60C2011/0395—Narrow ribs, i.e. having a rib width of less than 8 mm for linking shoulder 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
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1353—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom
- B60C2011/1361—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom with protrusions extending from the groove bottom
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a wire which inhibits reduction in drainage performance (wetland perofmrance), improves wear-resisting performance and manipulation stability. The tire (1) has a sub circumferential groove (30) and a plurality of outer lug grooves (40Aout) intersecting with the sub circumferential groove (30). The sub circumferential groove (30) has an inclined surface (33) which is continuously inclined from deepest portions (32) corresponding to the portions where the outer lug grooves (40Aout) intersect the sub circumferential groove (30), toward shallowest portions (31) of the sub circumferential groove (30) positioned between adjacent outer lug grooves (40Aout).
Description
Technical field
The present invention relates to a kind of tire, this tire comprises the fetus face with tread surface.
Background technology
Conventionally, there is known following tire, this tire comprises: pair of bead portion, and it is assembled in rim shoulder; Pair of sidewall portion, its outside in the tire radial direction in pair of bead portion and pair of bead portion continuous; And fetus face, it has the tread surface contacted with road surface.
In such tire, fetus face (tread surface) has multiple circumferential slot along the extension of tire circumference and multiple Width groove extended along tire width direction.
At this, multiple circumferential slot comprises main circumferential slot and secondary circumferential slot.Secondary circumferential slot is positioned at the outside of tire width direction relative to main circumferential slot.Multiple Width groove comprise be communicated in main circumferential slot and secondary circumferential slot Width groove, be communicated in secondary circumferential slot and arrive the Width groove of tyre surface ground terminal.
According to such tire, the Width groove arriving tyre surface ground terminal is utilized to ensure that drainage performance (such as, patent documentation 1).
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2006-240592 publication
But, in above-mentioned tire, be communicated in secondary circumferential slot and the Width groove arriving tyre surface ground terminal owing to being formed with, therefore there is the hidden danger that rigidity reduces, road-holding property reduces being located at the grounding parts of shoulder portion.
On the other hand, in the tire (such as, sports type tire) being installed on SUV etc., not only need to improve drainage performance (wetland performance), also need to improve abrasion resistance properties and road-holding property.
Summary of the invention
Therefore, the present invention completes to solve the problem, and its object is to provides one drainage performance (wetland performance) can be suppressed to reduce and can improve the tire of abrasion resistance properties and road-holding property.
The tire of the 1st technical scheme comprises fetus face, and this fetus face has the tread surface contacted with road surface.Above-mentioned fetus face has multiple circumferential slot along the extension of tire circumference and multiple Width groove extended along tire width direction in above-mentioned tread surface.Above-mentioned multiple circumferential slot comprises main circumferential slot and is positioned at the secondary circumferential slot in the outside of tire width direction relative to above-mentioned main circumferential slot.Above-mentioned multiple Width groove crosses above-mentioned secondary circumferential slot.One end of each groove in above-mentioned multiple Width groove is communicated in above-mentioned main circumferential slot.Above-mentioned secondary circumferential slot has dip plane, and this dip plane extends continuously towards the end face at the bottom of the secondary circumferential slot between adjacent a pair above-mentioned Width groove from the bottom land position corresponding with the part that above-mentioned Width groove crosses this secondary circumferential slot of above-mentioned secondary circumferential slot.
In the 1st technical scheme, the other end of each groove in above-mentioned multiple Width groove does not arrive tyre surface ground terminal, but stops in tire shoulder grounding parts.
In the 1st technical scheme, the well width of above-mentioned secondary circumferential slot is less than the well width of above-mentioned main circumferential slot, and in above-mentioned tire radial direction, the degree of depth of above-mentioned secondary circumferential slot is less than the degree of depth of above-mentioned main circumferential slot.
In the 1st technical scheme, in above-mentioned tire radial direction, the degree of depth of above-mentioned secondary circumferential slot is 40% ~ 55% of the degree of depth of above-mentioned main circumferential slot.
In the 1st technical scheme, in above-mentioned tire radial direction, the degree of depth of above-mentioned multiple Width groove is less than the degree of depth of above-mentioned main circumferential slot.
In the 1st technical scheme, in above-mentioned tire radial direction, the length of the end face at the bottom of above-mentioned secondary circumferential slot is equal with the length of above-mentioned dip plane.
In the 1st technical scheme, utilize the decorative pattern of the groove formation being located at above-mentioned fetus face with tire equator line for benchmark is asymmetric.Under the state that above-mentioned tire is installed on vehicle, above-mentioned secondary circumferential slot is positioned at than the position of above-mentioned tire equator line by the outside of vehicle.
According to the present invention, one can be provided drainage performance (wetland performance) can be suppressed to reduce and the tire of abrasion resistance properties and road-holding property can be improved.
Accompanying drawing explanation
Fig. 1 is the figure of the tread surface of the tire 1 representing the 1st embodiment.
Fig. 2 is the figure of the secondary circumferential slot 30 representing the 1st embodiment.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of the tire of embodiments of the present invention.In addition, in the record of the following drawings, the Reference numeral identical or similar to identical or similar part mark.
But accompanying drawing is schematic figure, should notice that ratio of each size etc. is different with reality.Thus, concrete size etc. should judge with reference to the following description.In addition, size relationship each other, part that ratio is different is also comprised among the figures.
[summary of embodiment]
Tire in embodiment comprises fetus face, and this fetus face has the tread surface contacted with road surface.Above-mentioned fetus face has multiple circumferential slot along the extension of tire circumference and multiple Width groove extended along tire width direction in above-mentioned tread surface.Above-mentioned multiple circumferential slot comprises main circumferential slot and is positioned at the secondary circumferential slot in the outside of tire width direction relative to above-mentioned main circumferential slot.Above-mentioned multiple Width groove crosses above-mentioned secondary circumferential slot.One end of each groove in above-mentioned multiple Width groove is communicated in above-mentioned main circumferential slot.
Bottom land position corresponding to the part of crossing this above-mentioned secondary circumferential slot with above-mentioned Width groove and the end face at the bottom of secondary circumferential slot between adjacent a pair above-mentioned Width groove is comprised in above-mentioned secondary circumferential slot.At this, " bottom land position " refers to the maximum deepest part of the degree of depth in tire radial direction, and this bottom land position has the plane being parallel to tyre surface installation surface." end face at the bottom of secondary circumferential slot " refers to the minimum most shallow portion of the degree of depth in tire radial direction, and this end face at the bottom of secondary circumferential slot has the plane being parallel to tyre surface installation surface.And, at above-mentioned secondary circumferential slot, there is the dip plane from above-mentioned bottom land position towards the end face continuous tilt at the bottom of secondary circumferential slot.End face at the bottom of above-mentioned secondary circumferential slot (most shallow portion) and above-mentioned bottom land position (deepest part) are alternately repeated in above-mentioned tire circumference across dip plane.
In embodiments, secondary circumferential slot comprises most shallow portion and deepest part, deepest part be positioned at multiple Width groove each cross the part of secondary circumferential slot.That is, because Width groove crosses the deepest part of secondary circumferential slot, drainage performance (wetland performance) is therefore inhibit to reduce.On the other hand, by being provided with most shallow portion, increase the rigidity at the position (that is, shoulder portion) being formed with secondary circumferential slot, therefore, it is possible to improve abrasion resistance properties and road-holding property.
[the 1st embodiment]
(structure of tire)
Below, the tire of the 1st embodiment is described.Fig. 1 is the figure of the tread surface of the tire 1 representing the 1st embodiment.
At this, tire 1 has: pair of bead portion, and it is assembled in rim flange; Sidewall, outside and the pair of bead portion of the radial TR of its tire in pair of bead portion are continuous; And fetus face, it has the tread surface contacted with road surface.
At this, as shown in Figure 1, the decorative pattern of the groove formation being located at fetus face 10 (tread surface) is utilized with tire equator line CL for benchmark is asymmetric.Below, under the state that tire 1 is installed on vehicle, be called than tire equator line CL " vehicle outside " by the side in the outside of vehicle, be called than tire equator line CL " vehicle interior side " by the side of the inner side of vehicle.
In addition, as shown in Figure 1, represent tyre surface ground connection width with W, represent tyre surface ground contact length with L.Tire 1 is installed on the standard rim of JATMA defined, the interior pressure of tire 1 is the interior pressure of standard of JATMA defined, under the state in the load of tire 1 being 80% of the peak load load of JATMA defined, measure tyre surface ground connection width W and tyre surface ground contact length L.
As shown in Figure 1, tire 1 has fetus face 10, and this fetus face 10 has tread surface.Fetus face 10 has central portion 10C, shoulder portion 10Sout and shoulder portion 10Sin.In addition, fetus face 10 (tread surface) have in tread surface multiple along tire circumference TC extend main circumferential slot 20, along tire circumference TC extend secondary circumferential slot 30 and multiple along tire width direction TW extend Width groove 40.
Central portion 10C is the position crossing over tire equatorial line CL.Central portion 10C is not specially limited, and should be to be positioned at the position leaned on the main circumferential slot 20 (external circumferential groove 20out) of vehicle outside most and be positioned between the main circumferential slot 20 (inner circumferential groove 20in) leaning on vehicle interior side most.Central portion 10C is along tire circumference TC continuous print position.
Shoulder portion 10Sout is provided at the position of the vehicle outside of central portion 10C.Shoulder portion 10Sin is not specially limited, and should be to be positioned at the position depended on the tyre surface ground terminal 10Eout of vehicle outside most and be positioned between the main circumferential slot 20 (external circumferential groove 20out) leaning on vehicle outside most.Shoulder portion 10Sout is along tire circumference TC continuous print position.
Shoulder portion 10Sin is provided at the position of the vehicle interior side of central portion 10C.Shoulder portion 10Sin is not specially limited, and should be to be positioned at by tyre surface ground terminal 10Ein and the position be positioned between the main circumferential slot 20 (inner circumferential groove 20in) leaning on most vehicle interior side most of vehicle interior side.Shoulder portion 10Sin is along tire circumference TC continuous print position.
Multiple main circumferential slot 20 comprises central circumferential slot 20c, external circumferential groove 20out and inner circumferential groove 20in.Central authorities circumferential slot 20c is located at central portion 10C.External circumferential groove 20out is positioned at vehicle outside relative to central circumferential slot 20c.Inner circumferential groove 20in is positioned at vehicle interior side relative to central circumferential slot 20c.
Secondary circumferential slot 30 is positioned at the outside of tire width direction TW relative to external circumferential groove 20out.In the 1st embodiment, secondary circumferential slot 30 is positioned at vehicle outside relative to external circumferential groove 20out.
Multiple Width groove 40 comprises central cros-rib tread groove 40Ac, central cros-rib tread groove 40Bc, outside cros-rib tread groove 40Aout, outside cros-rib tread groove 40Bout, outside cros-rib tread groove 40Cout, inner side cros-rib tread groove 40Ain and inner side cros-rib tread groove 40Bin.
Central cros-rib tread groove 40Ac as a part for multiple Width groove 40 configures with predetermined space on tire circumference TC.One end of central authorities cros-rib tread groove 40Ac is communicated with central circumferential slot 20c, and the other end of central cros-rib tread groove 40Ac does not arrive external circumferential groove 20out, but stops in central portion 10C (center-point earth portion).
Central cros-rib tread groove 40Bc as a part for multiple Width groove 40 configures with predetermined space on tire circumference TC.One end of central authorities cros-rib tread groove 40Bc is communicated with inner circumferential groove 20in, and the other end of central cros-rib tread groove 40Bc does not arrive central circumferential slot 20c, but stops in central portion 10C (center-point earth portion).
At this, on tire circumference TC, the interval of the interval between adjacent one another are a pair central cros-rib tread groove 40Ac preferably and between adjacent one another are a pair central cros-rib tread groove 40Bc is identical.
Outside cros-rib tread groove 40Aout as a part for multiple Width groove 40 configures with predetermined space on tire circumference TC.Outside cros-rib tread groove 40Aout crosses secondary circumferential slot 30.One end of outside cros-rib tread groove 40Aout is communicated with external circumferential groove 20out, and the other end of outside cros-rib tread groove 40Aout does not arrive tyre surface ground terminal 10Eout, but stops in shoulder portion 10Sout (tire shoulder grounding parts).
In addition, comprise along tire width direction extension and the outside cros-rib tread groove 40Cout (the 1st outside width direction groove) of one end arrival tyre surface ground terminal and outside cros-rib tread groove 40Bout (the 2nd outside width direction groove) in a part for multiple Width groove 40.
Outside cros-rib tread groove 40Bout configures with predetermined space on tire circumference TC.One end of outside cros-rib tread groove 40Bout is at tyre surface ground terminal 10Eout opening, and the other end of outside cros-rib tread groove 40Bout does not arrive secondary circumferential slot 30, but stops in shoulder portion 10Sout (tire shoulder grounding parts).
At this, on tire circumference TC, the interval of the interval between pair of outside cros-rib tread groove 40Bout adjacent one another are preferably and between adjacent one another are a pair central cros-rib tread groove 40Ac is identical.
Outside cros-rib tread groove 40Cout configures with predetermined space on tire circumference TC.One end of outside cros-rib tread groove 40Cout is at tyre surface ground terminal 10Eout opening, and the other end of outside cros-rib tread groove 40Cout does not arrive secondary circumferential slot 30, but stops in shoulder portion 10Sout (tire shoulder grounding parts).
At this, preferably cros-rib tread groove 40Cout in outside extends along the extended line direction of outside cros-rib tread groove 40Aout.In other words, on tire circumference TC, the interval of interval preferably and between pair of outside cros-rib tread groove 40Cout adjacent one another are between pair of outside cros-rib tread groove 40Aout adjacent one another are is identical.
Cros-rib tread groove 40Cout is different from outside cros-rib tread groove 40Bout length on tire width direction in outside, and the length of outside cros-rib tread groove 40Cout is less than the length of outside cros-rib tread groove 40Bout.Outside cros-rib tread groove 40Bout and outside cros-rib tread groove 40Cout alternately configuration on tire circumference TC.That is, outside cros-rib tread groove 40Bout is located between pair of outside cros-rib tread groove 40Cout adjacent in tire circumference, and outside cros-rib tread groove 40Cout is located between pair of outside cros-rib tread groove 40Bout adjacent in tire circumference.
Inner side cros-rib tread groove 40Ain as a part for multiple Width groove 40 configures with predetermined space on tire circumference TC.One end of inner side cros-rib tread groove 40Ain is at tyre surface ground terminal 10Ein opening, and the other end of inner side cros-rib tread groove 40Ain does not arrive inner circumferential groove 20in, but stops in shoulder portion 10Sin (tire shoulder grounding parts).The circumferential tire sipe 50 extended along tire circumference TC from the other end of inner side cros-rib tread groove 40Ain is formed at the other end of inner side cros-rib tread groove 40Ain.
At this, on tire circumference TC, the interval of the interval between pair of inside cros-rib tread groove 40Ain adjacent one another are preferably and between adjacent one another are a pair central cros-rib tread groove 40Bc is identical.
Inner side cros-rib tread groove 40Bin as a part for multiple Width groove 40 configures with predetermined space on tire circumference TC.One end of inner side cros-rib tread groove 40Bin is at tyre surface ground terminal 10Ein opening, and the other end of inner side cros-rib tread groove 40Bin does not arrive inner circumferential groove 20in, but stops in shoulder portion 10Sin (tire shoulder grounding parts).
At this, on tire width direction TW, the length of inner side cros-rib tread groove 40Bin is less than the length of inner side cros-rib tread groove 40Ain.Inner side cros-rib tread groove 40Ain and inner side cros-rib tread groove 40Bin alternately configuration on tire circumference TC.
In the 1st embodiment, the well width of secondary circumferential slot 30 is preferably less than the well width of main circumferential slot 20 (central circumferential slot 20c, external circumferential groove 20out and inner circumferential groove 20in).At this, well width is the width on the direction orthogonal with the direction that groove extends.
On the radial TR of tire, the degree of depth of secondary circumferential slot 30 is preferably less than the degree of depth of main circumferential slot 20 (central circumferential slot 20c, external circumferential groove 20out and inner circumferential groove 20in).In detail, on the radial TR of tire, preferably, the degree of depth of secondary circumferential slot 30 is 40% ~ 55% of the degree of depth of main circumferential slot 20.At this, for the comparing of the degree of depth on the radial TR of tire of secondary circumferential slot 30 and main circumferential slot 20, both can compare with the extreme depth of each groove (such as Dmax), also can compare with the least depth of each groove (such as Dmin), can also compare with the average depth of each groove entirety.
On the radial TR of tire, the degree of depth of outside cros-rib tread groove 40Aout is preferably less than the degree of depth of main circumferential slot 20 (central circumferential slot 20c, external circumferential groove 20out and inner circumferential groove 20in).At this, for the comparing of the degree of depth on the radial TR of tire of outside cros-rib tread groove 40Aout and main circumferential slot 20, both can compare by the extreme depth of each groove, also can compare with the least depth of each groove, can also compare with the average depth of each groove entirety.
(structure of secondary circumferential slot)
Below the secondary circumferential slot of the 1st embodiment is described.Fig. 2 is the figure of the secondary circumferential slot 30 representing the 1st embodiment.Fig. 2 is the figure representing the A-A section shown in Fig. 1.
As shown in Figure 2, secondary circumferential slot 30 comprises the maximum deepest part (the bottom land position at the bottom of secondary circumferential slot) 32 of the degree of depth on the minimum most shallow portion (end face at the bottom of secondary circumferential slot) 31 of the degree of depth on the radial TR of tire and the radial TR of tire.Most shallow portion 31 and deepest part 32 are alternately repeated on tire circumference TC.
Most shallow portion 31 is located at the end face at the bottom of secondary circumferential slot between pair of outside cros-rib tread groove 40Aout adjacent one another are on tire circumference TC.Deepest part 32 is bottom land positions corresponding with the part that multiple outside cros-rib tread groove 40Aout crosses secondary circumferential slot 30.
In the 1st embodiment, secondary circumferential slot 30 has bottom land from deepest part 32 and (or is called bottom land to the end face of adjacent with deepest part 32 most shallow portion 31 continuously.) dip plane 33.On tire circumference TC, the length L1 of most shallow portion 31 is preferably roughly equal with the length L2 of dip plane 33.Water is inhibit to reduce from the flowing (that is, drainage performance) of secondary circumferential slot 30 cros-rib tread groove 40Aout laterally and inhibit the rigidity at the position (that is, shoulder portion 10Sout) being formed with secondary circumferential slot 30 to reduce thereby, it is possible to take into account.In addition, the flowing of aqueous phase for tire circumference TC also can be guaranteed in secondary circumferential slot 30.
(effect and effect)
In the 1st embodiment, secondary circumferential slot 30 comprises most shallow portion 31 and deepest part 32, and each groove that deepest part 32 is arranged in multiple outside cros-rib tread groove 40Aout crosses the position of the part of secondary circumferential slot 30.That is, because outside cros-rib tread groove 40Aout crosses the deepest part 32 of secondary circumferential slot 30, drainage performance (wetland performance) is therefore inhibit to reduce.On the other hand, by being provided with most shallow portion 31, increase the rigidity at the position (that is, shoulder portion 10Sout) that secondary circumferential slot 30 is formed, therefore, it is possible to improve abrasion resistance properties and road-holding property.
In the 1st embodiment, the other end of outside cros-rib tread groove 40Aout does not arrive tyre surface ground terminal 10Eout, but stops in shoulder portion 10Sout (tire shoulder grounding parts).Thus, the rigidity at the position (that is, shoulder portion 10Sout) that outside cros-rib tread groove 40Aout is formed increases further, therefore, it is possible to improve abrasion resistance properties and road-holding property further.
In the 1st embodiment, well width due to secondary circumferential slot 30 is less than the well width of main circumferential slot 20, the degree of depth of secondary circumferential slot 30 is less than the degree of depth of main circumferential slot 20, and the rigidity at the position (that is, shoulder portion 10Sout) that therefore inhibit secondary circumferential slot 30 to be formed reduces.
In the 1st embodiment, the degree of depth due to outside cros-rib tread groove 40Aout is less than the degree of depth of main circumferential slot 20, and the rigidity at the position (that is, shoulder portion 10Sout) that therefore inhibit outside cros-rib tread groove 40Aout to be formed reduces.
[other embodiment]
Utilize above-mentioned embodiment to describe the present invention, but should not be construed as the discussion of the part forming the disclosure content and accompanying drawing defines the present invention.It is evident that, those skilled in the art can draw various replacement embodiment, embodiment and application technology according to the disclosure content.
In embodiments, exemplified with utilization be located at fetus face 10 (tread surface) groove form decorative pattern with tire equator line CL for benchmark is non-symmetrical situation.But embodiment is not limited thereto.Such as, utilize be located at fetus face 10 (tread surface) groove form decorative pattern also can with tire equator line CL for benchmark symmetrically.Under these circumstances, owing to there is not the difference of vehicle interior side and vehicle outside, as long as therefore secondary circumferential slot 30 is located at shoulder portion.
In embodiments, the bottom land of secondary circumferential slot 30 is made up of the most bottom land of shallow portion 31, the bottom land of deepest part 32 and dip plane 33, and is trapezoidal along the radial section of tire circumference.In other words, the bottom land of secondary circumferential slot 30 is heaved in trapezoidal shape as shown in Figure 2.But embodiment is not limited thereto.Such as, the bottom land of secondary circumferential slot 30 also can be the wavy shape along tire circumference TC.
In addition, by referring to the full content write present specification by No. 2013-177867, Japan's patent application (application on August 29th, 2013).
Claims (7)
1. a tire, it comprises fetus face, and this fetus face has the tread surface contacted with road surface, it is characterized in that,
Above-mentioned fetus face has multiple circumferential slot along the extension of tire circumference and multiple Width groove extended along tire width direction in above-mentioned tread surface,
Above-mentioned multiple circumferential slot comprises main circumferential slot and is positioned at the secondary circumferential slot in the outside of tire width direction relative to above-mentioned main circumferential slot,
Above-mentioned multiple Width groove crosses above-mentioned secondary circumferential slot,
One end of each groove in above-mentioned multiple Width groove is communicated in above-mentioned main circumferential slot,
Above-mentioned secondary circumferential slot has dip plane, and this dip plane extends continuously towards the end face at the bottom of the secondary circumferential slot between adjacent a pair above-mentioned Width groove from the bottom land position corresponding with the part that above-mentioned Width groove crosses this secondary circumferential slot of above-mentioned secondary circumferential slot.
2. tire according to claim 1, is characterized in that,
The other end of each groove in above-mentioned multiple Width groove does not arrive tyre surface ground terminal, but stops in tire shoulder grounding parts.
3. tire according to claim 1, is characterized in that,
The well width of above-mentioned secondary circumferential slot is less than the well width of above-mentioned main circumferential slot, and in above-mentioned tire radial direction, the degree of depth of above-mentioned secondary circumferential slot is less than the degree of depth of above-mentioned main circumferential slot.
4. tire according to claim 3, is characterized in that,
In above-mentioned tire radial direction, the degree of depth of above-mentioned secondary circumferential slot is 40% ~ 55% of the degree of depth of above-mentioned main circumferential slot.
5. tire according to claim 3, is characterized in that,
In above-mentioned tire radial direction, the degree of depth of above-mentioned multiple Width groove is less than the degree of depth of above-mentioned main circumferential slot.
6. tire according to claim 1, is characterized in that,
In above-mentioned tire radial direction, the length of the end face at the bottom of above-mentioned secondary circumferential slot is equal with the length of above-mentioned dip plane.
7. tire according to claim 1, is characterized in that,
Utilize the decorative pattern of the groove formation being located at above-mentioned fetus face with tire equator line for benchmark is asymmetric,
Under the state that above-mentioned tire is installed on vehicle, above-mentioned secondary circumferential slot is positioned at than the position of above-mentioned tire equator line by the outside of vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013177867A JP2015044527A (en) | 2013-08-29 | 2013-08-29 | Tire |
| JP2013-177867 | 2013-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104417279A true CN104417279A (en) | 2015-03-18 |
| CN104417279B CN104417279B (en) | 2016-11-09 |
Family
ID=52263872
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410437049.3A Active CN104417279B (en) | 2013-08-29 | 2014-08-29 | Tire |
| CN201420496613.4U Expired - Fee Related CN204095411U (en) | 2013-08-29 | 2014-08-29 | Tire |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496613.4U Expired - Fee Related CN204095411U (en) | 2013-08-29 | 2014-08-29 | Tire |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015044527A (en) |
| CN (2) | CN104417279B (en) |
| WO (1) | WO2015029861A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6514987B2 (en) * | 2015-07-31 | 2019-05-15 | 株式会社ブリヂストン | Pneumatic tire for motorcycles |
| JP6424764B2 (en) * | 2015-07-31 | 2018-11-21 | 横浜ゴム株式会社 | Pneumatic tire |
| JP6424765B2 (en) * | 2015-07-31 | 2018-11-21 | 横浜ゴム株式会社 | Pneumatic tire |
| JP7183681B2 (en) * | 2018-10-12 | 2022-12-06 | 住友ゴム工業株式会社 | tire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1035223A (en) * | 1996-07-22 | 1998-02-10 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2006143138A (en) * | 2004-11-24 | 2006-06-08 | Bridgestone Corp | Pneumatic tire |
| JP2010023760A (en) * | 2008-07-23 | 2010-02-04 | Bridgestone Corp | Tire |
| JP2011102114A (en) * | 2009-10-16 | 2011-05-26 | Bridgestone Corp | Tire |
| JP2012046105A (en) * | 2010-08-27 | 2012-03-08 | Bridgestone Corp | Tire |
| JP2013133083A (en) * | 2011-12-27 | 2013-07-08 | Bridgestone Corp | Pneumatic tire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4631932B2 (en) * | 2008-05-23 | 2011-02-16 | 横浜ゴム株式会社 | Pneumatic tire |
-
2013
- 2013-08-29 JP JP2013177867A patent/JP2015044527A/en active Pending
-
2014
- 2014-08-21 WO PCT/JP2014/071832 patent/WO2015029861A1/en active Application Filing
- 2014-08-29 CN CN201410437049.3A patent/CN104417279B/en active Active
- 2014-08-29 CN CN201420496613.4U patent/CN204095411U/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1035223A (en) * | 1996-07-22 | 1998-02-10 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2006143138A (en) * | 2004-11-24 | 2006-06-08 | Bridgestone Corp | Pneumatic tire |
| JP2010023760A (en) * | 2008-07-23 | 2010-02-04 | Bridgestone Corp | Tire |
| JP2011102114A (en) * | 2009-10-16 | 2011-05-26 | Bridgestone Corp | Tire |
| JP2012046105A (en) * | 2010-08-27 | 2012-03-08 | Bridgestone Corp | Tire |
| JP2013133083A (en) * | 2011-12-27 | 2013-07-08 | Bridgestone Corp | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015044527A (en) | 2015-03-12 |
| WO2015029861A1 (en) | 2015-03-05 |
| CN104417279B (en) | 2016-11-09 |
| CN204095411U (en) | 2015-01-14 |
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