CN204398765U - Air-inflation tyre - Google Patents
Air-inflation tyre Download PDFInfo
- Publication number
- CN204398765U CN204398765U CN201520028414.5U CN201520028414U CN204398765U CN 204398765 U CN204398765 U CN 204398765U CN 201520028414 U CN201520028414 U CN 201520028414U CN 204398765 U CN204398765 U CN 204398765U
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- Prior art keywords
- major trough
- tire
- secondary groove
- rotation direction
- tyre surface
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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
- B60C11/0302—Tread patterns directional pattern, i.e. with main rolling direction
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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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
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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
- B60C2011/0367—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by depth
- B60C2011/0369—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by depth with varying depth of 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
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0374—Slant grooves, i.e. having an angle of about 5 to 35 degrees 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
- B60C2011/0388—Continuous ribs provided at 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
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C2011/1209—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe straight at the tread surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The utility model provides a kind of air-inflation tyre that can improve snow performance.The tire being designated hand of rotation comprises: major trough, tyre surface is provided with this major trough multiple along tire circumferentially spaced compartment of terrain, and this major trough extends to tyre surface end from the inner end being positioned at tyre surface central part to the mode that the side contrary with tire rotation direction diminishes gradually with the angle relative to tire width direction; 1st secondary groove, it extends along the normal direction of major trough from major trough to side, tire rotation direction and does not arrive major trough adjacent with this major trough on tire rotation direction and stop; And the 2nd secondary groove, it is located at the position than the 1st secondary groove roller tire equator side and extends along the normal direction of major trough from major trough to side, tire rotation direction and arrive major trough adjacent with this major trough on tire rotation direction.
Description
Technical field
The utility model relates to a kind of air-inflation tyre.
Background technology
In the tire being designated hand of rotation, have and define many tippers on tyre surface, the tire of major trough and the secondary groove that tilts, these many tippers extend towards the side contrary with tire rotation direction and towards lateral bend tire width direction from the end of tire equator side, this major trough extends continuously along tire circumference and makes the end of the roller tire equator side of tipper adjacent in tire circumference connected to each other, the secondary groove of this inclination is from tipper to side, tire rotation direction and extend (such as to tire equator side, Japanese Unexamined Patent Publication 2012-236536 publication).
Utility model content
The problem that utility model will solve
In above-mentioned tire, utilize tipper and the secondary groove of inclination can guarantee wetland performance and snow performance, but snow performance is still left some room for improvement.
Problem of the present utility model is to improve snow performance.
For the scheme of dealing with problems
The air-inflation tyre of the 1st technical scheme of the present utility model has been designated hand of rotation, it is characterized in that, this air-inflation tyre comprises: major trough, tyre surface is provided with this major trough multiple along tire circumferentially spaced compartment of terrain, and this major trough extends to tyre surface end from the inner end being positioned at tyre surface central part to the mode that the side contrary with tire rotation direction diminishes gradually with the angle relative to tire width direction; 1st secondary groove, it is located at described tyre surface and extends along the normal direction of this major trough from described major trough to side, tire rotation direction and do not arrive described major trough adjacent with this major trough on tire rotation direction and stop; And the 2nd secondary groove, the position of the 1st secondary groove roller tire equator side described in its ratio being located at described tyre surface and extend along the normal direction of this major trough from described major trough to side, tire rotation direction and arrive described major trough adjacent with this major trough on tire rotation direction.
In the air-inflation tyre of the 1st technical scheme, owing to making major trough extend to tyre surface end from the inner end being positioned at tyre surface central part to the mode that the side contrary with tire rotation direction diminishes gradually with the angle relative to tire width direction, major trough therefore can be utilized to form longer snow post when avenging and road surface travelling.Thus, the shearing force of snow post (below, is suitably denoted as " snow post shearing force ".) improve, the snow performance (on snow acceleration capability and the upper deceleration and stopping performance of snow) of the utilization snow post shearing force of tire improves.
In addition, in above-mentioned air-inflation tyre, to extend along the normal direction of this major trough from major trough to side, tire rotation direction owing to making the 1st secondary groove and make it not arrive major trough adjacent with this major trough on tire rotation direction and stop, when therefore braking on avenging, snow can be retained in the 1st secondary groove, therefore the shearing force of snow post owing to being formed by the 1st secondary groove, on snow, deceleration and stopping performance improves.
In addition, this said " normal direction of major trough " comprise the normal of the groove center line along major trough direction and relative to the direction of this normal at the range tilt of ± 10 degree.
And, in above-mentioned air-inflation tyre, to extend along the normal direction of this major trough from major trough to side, tire rotation direction owing to making the 2nd secondary groove and make it arrive major trough adjacent with this major trough on tire rotation direction, because which form the joining part of the secondary groove in two places the 2nd and major trough.At these joining part, be formed with the snow post crossing over major trough and the 2nd secondary groove when avenging and road surface travelling, therefore utilize the snow performance of snow post shearing force to improve.
In addition, owing to making the 1st secondary groove extend along the normal direction of major trough, therefore, it is possible to guarantee the rigidity in the grounding parts bight be formed between major trough and the 1st secondary groove.And, owing to making the 2nd secondary groove extend along the normal direction of major trough, therefore, it is possible to guarantee the rigidity in the grounding parts bight be formed between major trough and the 2nd secondary groove.Thus, the ground connection property being formed at the grounding parts between major trough adjacent in tire circumference improves, and on snow, driving stability improves.
According to above content, according to the air-inflation tyre of the 1st technical scheme, snow performance (on snow, on acceleration capability, snow, deceleration and stopping performance and snow go up driving stability) can be improved.
According to the air-inflation tyre of the 2nd technical scheme of the present utility model, it is characterized in that, in the air-inflation tyre of the 1st technical scheme, be configured with the described 1st secondary groove extended from described major trough adjacent with this major trough on tire rotation direction at the extended line of the described 2nd secondary groove extended from described major trough.
In the air-inflation tyre of the 2nd technical scheme, owing to being configured with the 1st secondary groove of major trough adjacent with this major trough on tire rotation direction at the extended line of the 2nd secondary groove extended from major trough, therefore, it is possible to utilize from major trough extend the 2nd secondary groove and from major trough adjacent on tire rotation direction extend the 1st secondary groove and form longer snow post.Thus, the snow performance of snow post shearing force is utilized to improve further.
According to the air-inflation tyre of the 3rd technical scheme of the present utility model, it is characterized in that, in the air-inflation tyre of the 2nd technical scheme, on described tyre surface, bearing of trend along described major trough is provided with multiple described 1st secondary groove extended from described major trough at spaced intervals, is configured with the described 1st secondary groove from the most roller tire equator side in the multiple described 1st secondary groove that described major trough adjacent with this major trough on tire rotation direction extends at the extended line of the described 2nd secondary groove extended from described major trough.
In the air-inflation tyre of the 3rd technical scheme, owing to being provided with multiple the 1st secondary groove extended from major trough at spaced intervals along the bearing of trend of this major trough on tyre surface, therefore snow performance improves.On the other hand, owing to being configured with the 1st secondary groove of the most roller tire equator side in multiple 1st secondary grooves of extending from major trough adjacent with this major trough on tire rotation direction at the extended line of the 2nd secondary groove extended from major trough, therefore, it is possible to guarantee the size of the grounding parts be formed between the 1st secondary groove of most roller tire equator side and the 2nd secondary groove, therefore, it is possible to suppress the rigidity of this grounding parts to reduce.
According to the air-inflation tyre of the 4th technical scheme of the present utility model, it is characterized in that, in the air-inflation tyre of the 1st technical scheme, the groove depth of described 1st secondary groove is more shallow than the groove depth of described major trough and described 2nd secondary groove.
In the air-inflation tyre of the 4th technical scheme; by making the groove depth of the 1st secondary groove more shallow than the groove depth of major trough and the 2nd secondary groove; acceleration capability and the upper deceleration and stopping performance of snow on the snow based on the 1st secondary groove can be guaranteed, and the rigidity of the grounding parts be formed between major trough adjacent in tire circumference can be guaranteed and guarantee to avenge driving stability.
According to the air-inflation tyre of the 5th technical scheme of the present utility model, it is characterized in that, in the air-inflation tyre of arbitrary technical scheme of the 1st technical scheme ~ the 4th technical scheme, described major trough is located at tire width direction both sides respectively across tire equator, on described tyre surface, between the described major trough in tire width direction both sides and the described 2nd secondary groove of tire width direction both sides, be formed with continuous print ribbed grounding parts in tire circumference.
In the air-inflation tyre of the 5th technical scheme, owing to being formed with continuous print ribbed grounding parts in tire circumference between the major trough in tire width direction both sides and the 2nd secondary groove of tire width direction both sides, therefore in tyre surface, the ground contact area of the tyre surface central part that ground contact length is the longest increases, and on snow, driving stability improves.
According to the air-inflation tyre of the 6th technical scheme of the present utility model, it is characterized in that, in the air-inflation tyre of the 5th technical scheme, the described major trough of tire width direction side and the described major trough of opposite side are in staggered configuration in tire circumference.
In the air-inflation tyre of the 6th technical scheme, owing to being in staggered configuration the major trough of tire width direction side and the major trough of opposite side in tire circumference, therefore the narrow part of local is not formed at the ribbed grounding parts being formed at tyre surface central part, can guarantee the rigidity of ribbed grounding parts, on snow, driving stability improves.
The effect of utility model
As discussed above, air-inflation tyre of the present utility model can improve snow performance.
Accompanying drawing explanation
Fig. 1 is the airtyred tyre surface expansion drawing of an embodiment of the present utility model.
Fig. 2 is the enlarged drawing of the part (impaling part) of arrow 2 indication of Fig. 1.
Fig. 3 is the 3-3 line cutaway view of Fig. 2.
Detailed description of the invention
Below, air-inflation tyre (below, brief note work " tire " of an embodiment of the present utility model is described.)10。The tire 10 of present embodiment is the tire being designated hand of rotation, is the tire being mainly used in manned vehicle.In addition, the utility model is not limited to this structure, also may be used for the air-inflation tyre of other purposes.Such as, also can be used as light truck, aerocraft with and construction vehicle with etc. air-inflation tyre.
The expansion drawing of the tyre surface 12 of tire 10 has been shown in Fig. 1.In addition, the arrow X in Fig. 1 represents the tire width direction as the parallel direction of the axis (rotation axis) with tire 10, and arrow Y represents that the circumference of tire 10 (below, is suitably denoted as " tire circumference ".)。In addition, reference number C L represents tire equator, and Reference numeral R represents the hand of rotation of tire 10.In the present embodiment, along tire width direction, " inside tire width direction " is made in tire equator CL sidelights, the side contrary with tire equator CL is denoted as " outside tire width direction ".
In addition, the Reference numeral 12E in Fig. 1 represents the tyre surface end of the end (end of tire width direction) of the tread width TW as tyre surface 12.
The tire 10 of present embodiment can use the internal structure identical with known airtyred internal structure as internal structure.Therefore, about the internal structure of tire 10, omit the description.
As depicted in figs. 1 and 2, on the tyre surface 12 of the contact site contacted with road surface forming tire 10, be provided with multiple major trough 14 along tire circumferentially spaced interval (being constant interval in the present embodiment).This major trough 14 extends to tyre surface end 12E from the inner end 14A being positioned at tyre surface central part 12C to the mode that the side contrary with tire rotation direction diminishes gradually with the angle θ 1 of the acute side relative to tire width direction.Specifically, as shown in Figure 2, the line through the center of the groove width of major trough 14 (below, is suitably denoted as " groove center line ".) mode that diminishes gradually from inner end 14A to tyre surface end 12E with angle θ 1 of 14CL bends.
In the present embodiment, centered by tire equator CL, to tire width direction both sides, the scope of 1/2 × TW is set to tyre surface central part 12C.And, the tire width direction both sides of tyre surface central part 12C are set to tyre surface shoulder portion 12S.
As shown in Figure 1, preferably, the angle that major trough 14 is bent into relative to tire width direction becomes 60 degree ~ 90 degree, becomes 0 degree ~ 20 degree relative to the angle of tire width direction in tyre surface end 12E side in inner end 14A side.By formation like this, thus the opening edge portion of major trough 14 (edge) 14B, 14C can play the edge effect of tire circumference and tire width direction effectively.In addition, the edge 14B of major trough 14 is opening edge portion of side, tire rotation direction, and edge 14C is the opening edge portion of the side contrary with tire rotation direction.
In addition, in the present embodiment, make major trough 14 extend to tyre surface end 12E from inner end 14A is bending, but the utility model is not limited to this structure.Such as, major trough 14 also can be made to be step-like bending from inner end 14A and to extend to tyre surface end 12E.
The groove width of major trough 14 is large in inner end 14A side at tyre surface end 12E side ratio.In addition, major trough 14 makes the radius of curvature of the edge 14C of the radius of curvature of the edge 14B of side, tire rotation direction and the side contrary with tire rotation direction roughly the same in tyre surface shoulder portion 12S.In addition, the utility model is not limited to said structure.
As shown in Figure 1, tyre surface 12 is formed with the secondary groove 16 of the 1st secondary groove the 16,1st extend along the normal direction of major trough 14 from major trough 14 to side, tire rotation direction and do not arrive major trough 14 adjacent with this major trough 14 on tire rotation direction and stop.Specifically, the 1st secondary groove 16 is being formed at termination in the ribbed grounding parts 22 between major trough 14 adjacent in tire circumference.In addition, the bearing of trend (direction along groove center line 14CL) of major trough 14 is provided with multiple 1st secondary groove 16 (in the present embodiment, being two) at spaced intervals.
In addition, this said " normal direction of major trough 14 " comprise the normal 14NL of the groove center line 14CL along major trough 14 direction and relative to the direction (with reference to Fig. 2) of this normal 14NL at the range tilt of ± 10 degree.
In the present embodiment, as shown in Figure 2, the groove center line 16CL of the 1st secondary groove 16 tilts with angle θ 2 relative to the normal 14NL of major trough 14.In addition, the groove center line 16CL of the 1st secondary groove 16 is through the line at the center of the groove width of the 1st secondary groove 16.In addition, angle θ 2 is set in the scope of-10 degree ~ 10 degree relative to normal 14NL.
In addition, as shown in Figure 1, at tyre surface 12, to extend along the normal direction of major trough 14 from major trough 14 to side, tire rotation direction and to arrive major trough 14 adjacent with this major trough 14 on tire rotation direction being formed with the secondary groove 18 of the 2nd secondary groove the 18,2nd than the 1st secondary groove 16 by the position of tire equator CL side.2nd secondary groove 18 makes major trough 14 adjacent in tire circumference communicate with each other.
In the present embodiment, as shown in Figure 2, the groove center line 18CL of the 2nd secondary groove 18 tilts with angle θ 3 relative to the normal 14NL of major trough 14.The groove center line 18CL of the 2nd secondary groove 18 is through the line at the center of the groove width of the 2nd secondary groove 18.In addition, angle θ 3 is set in-10 relative to normal 14NL identically with angle θ 2 and spends in the scope of ~ 10 degree.
In addition, in the present embodiment, the 2nd secondary groove 18 is configured at tyre surface central part 12C (with reference to Fig. 1).In addition, the utility model is not limited to this structure.
In addition, the 2nd secondary groove 18 is configured with the 1st secondary groove 16 extended from major trough 14 adjacent on tire rotation direction on extended line.Specifically, the extended line of the 2nd secondary groove 18 is configured with multiple (in the present embodiment, being two) the 1st extended from major trough 14 adjacent on tire rotation direction in secondary groove 16, by the 1st secondary groove 16 of tire equator CL side.In addition, the line after this said " extended line of the 2nd secondary groove 18 " instigates the groove center line 18CL of the 2nd secondary groove 18 to extend.In addition, in the present embodiment, the extended line of the 2nd secondary groove 18 is consistent by the groove center line 16CL of the 1st secondary groove 16 of tire equator CL side with what extend from major trough 14 adjacent on tire rotation direction.
In addition, the utility model is not limited to said structure, as long as be configured with a part for the 1st secondary groove 16 extended from major trough 14 adjacent on tire rotation direction on the extended line of the 2nd secondary groove 18.In addition, also can tilt relative to the extended line of the 2nd secondary groove 18 from the groove center line 16CL of the 1st secondary groove 16 of major trough 14 adjacent on tire rotation direction extension.
As shown in Figure 3, the groove depth D1 of the 1st secondary groove 16 is formed more shallow than the groove depth D0 of the major trough 14 and groove depth D2 of the 2nd secondary groove 18.In addition, in the present embodiment, groove depth D0 and groove depth D2 are formed as identical value, but the utility model is not limited to this structure, such as, also can be that groove depth D2 is more shallow than groove depth D0.
As shown in Figure 1, major trough 14, the 1st secondary groove 16 and the 2nd secondary groove 18 are located at tire width direction both sides respectively across tire equator CL.In addition, in the present embodiment, in tire circumference, the major trough 14 of side and the major trough 14 of opposite side is configured with staggering half pitch across tire equator CL.In addition, the distance between this said half pitch refers to major trough 14 adjacent in tire circumference is set to a half pitch during spacing.
In addition, on the tyre surface 12 of present embodiment, as groove inc during ground connection (trough wall surface is discontiguous groove each other), be only formed with major trough 14, the 1st secondary groove 16 and the 2nd secondary groove 18.In addition, the utility model is not limited to said structure, also can be except major trough 14, the 1st secondary groove 16 and the 2nd secondary groove 18, to be also formed with other grooves on tyre surface 12.
On tyre surface 12, between the major trough 14 in tire width direction both sides and the 2nd of tire width direction both sides the secondary groove 18, be formed with continuous print ribbed grounding parts 20 in tire circumference.In addition, be included in ground plane at this said " in tire circumference continuous print ribbed grounding parts 20 " and make ribbed grounding parts 20 continuous print state in tire circumference.In addition, in the present embodiment, ribbed grounding parts 20 extends along tire circumference indentation on tire equator CL.
As shown in Figure 1, in ribbed grounding parts 20, be provided with multiple tire sipe 30 to extending with the direction (in the present embodiment, being tire width direction) that intersects of tire circumference along tire circumferentially spaced compartment of terrain.In addition, this said " tire sipe " refer to be set to ground connection time trough wall surface contacting one another and closed degree the stria of groove width.
In addition, on tyre surface 12, between major trough 14 adjacent in tire circumference, outside the tire width direction of the 2nd secondary groove 18, be formed with continuous print ribbed grounding parts 22 on tire width direction.Adjacent outside the tire width direction of this ribbed grounding parts 22 and ribbed grounding parts 20.
As shown in Figure 1, ribbed grounding parts 22 is configured to comprise: doubtful pattern block portion 22A, the doubtful pattern block portion 22B between the adjacent the 1st secondary groove 16 and the doubtful pattern block portion 22C between the 1st secondary groove 16 and tyre surface end 12E between the 2nd secondary groove 18 and the 1st secondary groove 16 of most roller tire equator side.In addition, in this said " doubtful pattern block portion " though but refer to the part of not blocked the grounding parts being formed as block by groove completely.
In pattern block portion 22A, be provided with multiple tire sipe 32 to extending with the direction (in the present embodiment, being the direction relative to tire peripheral, oblique) that intersects of tire circumference along tire circumferentially spaced compartment of terrain.
In pattern block portion 22B, multiple tire sipe 34 extended to the direction (in the present embodiment, being the direction relative to tire peripheral, oblique), namely identical with tire sipe 32 direction that intersect with tire circumference is provided with along tire circumferentially spaced compartment of terrain.
In pattern block portion 22C, be provided with multiple tire sipe 36 to extending with the direction (in the present embodiment, being tire width direction) that intersects of tire circumference along tire circumferentially spaced compartment of terrain.
Then, the action effect of tire 10 is described.
In tire 10, to extend from the inner end 14A being positioned at tyre surface central part 12C to the mode that the side contrary with tire rotation direction diminishes gradually with the angle θ 1 relative to tire width direction owing to making major trough 14 and reach tyre surface end 12E, therefore major trough 14 can be utilized to form longer snow post when avenging and road surface travelling.Thus, the shearing force of snow post (below, is suitably denoted as " snow post shearing force ".) improve, the snow performance (on snow acceleration capability and the upper deceleration and stopping performance of snow) of the utilization snow post shearing force of tire 10 improves.In addition, when wet road surface travels, because draining can be flowed swimmingly from inner end 14A side towards tyre surface end 12E side in major trough 14, therefore the drainage of tire 10 improves.And owing to making the groove width of major trough 14 large in inner end 14A side compared with little tyre surface end 12E side ratio in the angle relative to tire width direction, the snow post being therefore formed at tyre surface end 12E side is thicker, acceleration capability and the upper deceleration and stopping performance raising of snow on snow.
In addition, major trough 14 to extend from inner end 14A to the mode that the side contrary with tire rotation direction diminishes gradually with the angle θ 1 relative to tire width direction and reaches tyre surface end 12E.Accordingly, the edge 14B of major trough 14 and edge 14C tire circumference and tire width direction on a large scale in performance edge effect, the snow performance therefore based on edge effect improves.And when travelling on wet road surface, the flowing of the water in major trough 14 becomes smooth and easy, and therefore drainage performance improves.
In addition, in tire 10, owing to making the 1st secondary groove 16 from major trough 14 to side, tire rotation direction along the extension of the normal direction of this major trough 14 and not arriving major trough 14 adjacent with this major trough 14 on tire rotation direction and stop in ribbed grounding parts 22, when therefore braking on avenging, snow is retained in the 1st secondary groove 16.Therefore, due to the shearing force of snow post formed by the 1st secondary groove 16, on snow, deceleration and stopping performance improves.On the other hand, when accelerating on avenging, with the joining part of major trough 14 the 1st secondary groove 16 in, the snow in major trough 14 extrudes mutually with the snow in the 1st secondary groove 16 and combines to be formed firmly avenges post, therefore avenges above acceleration capability raising.In addition, stop in ribbed grounding parts 22 owing to making the 1st secondary groove 16, therefore the edge part (the edge 14C of major trough 14) of the side, tire rotation direction (side of entering into) of ribbed grounding parts 22 not blocked in midway by the 1st secondary groove 16 but longer ground continuously, edge effect when therefore travelling on snow road surface improves, and on snow, acceleration capability improves.And then, owing to making the 1st secondary groove 16 extend along the normal direction of major trough 14, therefore, it is possible to the rigidity in the respective bight of the pattern block portion 22A, the pattern block portion 22B that guarantee to be formed between major trough 14 and the 1st secondary groove 16 and pattern block portion 22C.Thus, the ground connection property of the pattern block portion 22A ~ pattern block portion 22C of ribbed grounding parts 22 improves, and on snow, driving stability improves.And, by making the 1st secondary groove 16 extend along the normal direction of major trough 14, the draining of flowing in major trough 14 can be suppressed disorderly.
And, in tire 10, to extend along the normal direction of this major trough 14 from major trough 14 to side, tire rotation direction owing to making the 2nd secondary groove 18 and arrive major trough 14 adjacent with this major trough 14 on tire rotation direction, being therefore formed with the joining part of the secondary groove 18 in two places the 2nd and major trough 14.At these joining part, be formed with the snow post crossing over major trough 14 and the 2nd secondary groove 18 when avenging and road surface travelling, therefore utilize the snow performance of snow post shearing force to improve.In addition, owing to being configured with the 1st secondary groove 16 of major trough 14 adjacent with this major trough 14 on tire rotation direction at the extended line of the extend from major trough 14 the 2nd secondary groove 18, therefore, it is possible to utilize from major trough 14 extend the 2nd secondary groove 18 and form longer snow post from the 1st secondary groove 16 that major trough 14 adjacent with this major trough 14 on tire rotation direction extends.Thus, the snow performance of snow post shearing force is utilized to improve further.And then when accelerating on avenging, with the joining part of major trough 14 the 2nd secondary groove 18 in, the snow in major trough 14 extrudes mutually with the snow in the 2nd secondary groove 18 and combines to be formed firmly avenges post, therefore avenges above acceleration capability raising.And, owing to making the 2nd secondary groove 18 extend along the normal direction of major trough 14, therefore, it is possible to guarantee the rigidity in the bight of the pattern block portion 22A be formed between major trough 14 and the 2nd secondary groove 18.Thus, the ground connection property being formed at the pattern block portion 22A of the ribbed grounding parts 22 between major trough 14 adjacent in tire circumference improves, and on snow, driving stability improves.And, by making the 2nd secondary groove 18 extend along the normal direction of major trough 14, the draining of flowing in major trough 14 can be suppressed disorderly.
In tire 10, owing to being provided with multiple the 1st secondary groove 16 extended from major trough 14 at spaced intervals along the bearing of trend of this major trough 14 on tyre surface 12, therefore snow performance improves.On the other hand, owing to being configured with at the extended line of the extend from major trough 14 the 2nd secondary groove 18 from the 1st secondary groove 16 leaning on tire equator CL side most in multiple 1st secondary grooves 16 that major trough 14 adjacent with this major trough 14 on tire rotation direction extends, therefore, it is possible to guarantee to be formed in the size depending on the pattern block portion 22A between the 1st secondary groove 16 of tire equator CL side and the 2nd secondary groove 18 most.Thereby, it is possible to suppress the rigidity of the pattern block portion 22A of ribbed grounding parts 22 to reduce.
In tire 10; by making the groove depth D1 of the 1st secondary groove 16 more shallow than the groove depth D0 of major trough and the groove depth D2 of the 2nd secondary groove 18; acceleration capability and the upper deceleration and stopping performance of snow on the snow based on the 1st secondary groove 16 can be guaranteed, and each rigidity of pattern block portion 22A, 22B, 22C of ribbed grounding parts 22 can be guaranteed and guarantee to avenge driving stability.
In tire 10, owing to being provided with tire sipe 30 at ribbed grounding parts 20, ribbed grounding parts 22 is provided with tire sipe 32, tire sipe 34 and tire sipe 36, therefore utilizes the edge effect of tire sipe and the deceleration and stopping performance improved on ice and snow road and acceleration capability.
In addition, in tire 10, define continuous print ribbed grounding parts 20 in tire circumference due on heart portion 12C, particularly tire equator CL in the tread, therefore in tyre surface 12, the ground contact area of the tyre surface central part 12C that ground contact length is the longest increases, driving stability raising on snow.In addition, by arranging tire sipe 30 at ribbed grounding parts 20, higher edge effect can be obtained.
And, in tire 10, due to the major trough 14 of the major trough 14 with opposite side that are in staggered configuration the side of tire width direction in tire circumference, on ribbed grounding parts 20, be not therefore formed with the narrow part of local, the rigidity of ribbed grounding parts 20 can be guaranteed.Thus, the ground connection property of ribbed grounding parts 20 improves, and on snow, driving stability improves.Particularly in the present embodiment, inner end 14A due to the major trough 14 of the inner end 14A and opposite side that make the major trough 14 of the side of tire width direction has staggered half pitch in tire circumference, therefore, it is possible to across tire equator CL and balance produces the edge effect brought by the major trough 14 of both sides preferably.
According to above content, according to tire 10, snow performance (on snow, on acceleration capability, snow, deceleration and stopping performance and snow go up driving stability) can be improved.
In the above-described embodiment, as shown in Figure 1, be set to the structure that major trough 14 does not cross tire equator CL, but the utility model is not limited to this structure, also can be set to the structure that major trough 14 crosses tire equator CL.According to this structure, the drainage performance of major trough 14 improves further.
Above, enumerate embodiment and describe embodiment of the present utility model, but these embodiments are examples, can various change and enforcement be carried out in the scope not departing from purport.In addition, certain protection domain of the present utility model is not limited to these embodiments.
Claims (6)
1. an air-inflation tyre, it has been designated hand of rotation, it is characterized in that, this air-inflation tyre comprises:
Major trough, tyre surface is provided with this major trough multiple along tire circumferentially spaced compartment of terrain, and this major trough extends to tyre surface end from the inner end being positioned at tyre surface central part to the mode that the side contrary with tire rotation direction diminishes gradually with the angle relative to tire width direction;
1st secondary groove, it is located at described tyre surface and extends along the normal direction of this major trough from described major trough to side, tire rotation direction and do not arrive described major trough adjacent with this major trough on tire rotation direction and stop; And
2nd secondary groove, the position of the 1st secondary groove roller tire equator side described in its ratio being located at described tyre surface and extend along the normal direction of this major trough from described major trough to side, tire rotation direction and arrive described major trough adjacent with this major trough on tire rotation direction.
2. air-inflation tyre according to claim 1, is characterized in that, is configured with the described 1st secondary groove extended from described major trough adjacent with this major trough on tire rotation direction at the extended line of the described 2nd secondary groove extended from described major trough.
3. air-inflation tyre according to claim 2, is characterized in that,
On described tyre surface, the bearing of trend along described major trough is provided with multiple described 1st secondary groove extended from described major trough at spaced intervals,
The described 1st secondary groove from the most roller tire equator side in the multiple described 1st secondary groove that described major trough adjacent with this major trough on tire rotation direction extends is configured with at the extended line of the described 2nd secondary groove extended from described major trough.
4. air-inflation tyre according to claim 1, is characterized in that,
The groove depth of described 1st secondary groove is more shallow than the groove depth of described major trough and described 2nd secondary groove.
5. air-inflation tyre according to any one of claim 1 to 4, is characterized in that,
Described major trough is located at tire width direction both sides respectively across tire equator,
On described tyre surface, between the described major trough in tire width direction both sides and the described 2nd secondary groove of tire width direction both sides, be formed with continuous print ribbed grounding parts in tire circumference.
6. air-inflation tyre according to claim 5, is characterized in that,
The described major trough of tire width direction side and the described major trough of opposite side are in staggered configuration in tire circumference.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014005384A JP6274868B2 (en) | 2014-01-15 | 2014-01-15 | Pneumatic tire |
| JP2014-005384 | 2014-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204398765U true CN204398765U (en) | 2015-06-17 |
Family
ID=53422656
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020734.0A Expired - Fee Related CN104773037B (en) | 2014-01-15 | 2015-01-15 | Pneumatic tire |
| CN201520028414.5U Active CN204398765U (en) | 2014-01-15 | 2015-01-15 | Air-inflation tyre |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020734.0A Expired - Fee Related CN104773037B (en) | 2014-01-15 | 2015-01-15 | Pneumatic tire |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6274868B2 (en) |
| CN (2) | CN104773037B (en) |
| WO (1) | WO2015108079A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773037A (en) * | 2014-01-15 | 2015-07-15 | 株式会社普利司通 | Pneumatic tire |
| CN113710504A (en) * | 2019-04-26 | 2021-11-26 | 横滨橡胶株式会社 | Pneumatic tire |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6246601B2 (en) * | 2014-01-15 | 2017-12-13 | 株式会社ブリヂストン | Pneumatic tire |
| JP6819133B2 (en) * | 2016-08-23 | 2021-01-27 | 住友ゴム工業株式会社 | tire |
| JP6737112B2 (en) * | 2016-09-30 | 2020-08-05 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP6790722B2 (en) * | 2016-10-26 | 2020-11-25 | 住友ゴム工業株式会社 | tire |
| JP6985895B2 (en) * | 2017-11-08 | 2021-12-22 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Pneumatic tires |
| IT201800007188A1 (en) * | 2018-07-13 | 2020-01-13 | Vehicle wheel tire | |
| JP7310434B2 (en) * | 2019-08-19 | 2023-07-19 | 住友ゴム工業株式会社 | tire |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06305307A (en) * | 1993-04-23 | 1994-11-01 | Bridgestone Corp | Pneumatic tire used in winter time |
| JP4518641B2 (en) * | 2000-07-18 | 2010-08-04 | 株式会社ブリヂストン | Pneumatic tire |
| CA2589272A1 (en) * | 2004-11-29 | 2006-06-01 | Pirelli Tyre S.P.A. | On/off-road tire for a motor vehicle |
| JP2012091564A (en) * | 2010-10-25 | 2012-05-17 | Bridgestone Corp | Tire |
| JP5391231B2 (en) * | 2011-05-12 | 2014-01-15 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5316591B2 (en) * | 2011-06-08 | 2013-10-16 | 横浜ゴム株式会社 | Pneumatic tire |
| JP5432967B2 (en) * | 2011-10-27 | 2014-03-05 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5840489B2 (en) * | 2011-12-28 | 2016-01-06 | 株式会社ブリヂストン | Pneumatic tire |
| JP6274868B2 (en) * | 2014-01-15 | 2018-02-07 | 株式会社ブリヂストン | Pneumatic tire |
-
2014
- 2014-01-15 JP JP2014005384A patent/JP6274868B2/en not_active Expired - Fee Related
-
2015
- 2015-01-14 WO PCT/JP2015/050835 patent/WO2015108079A1/en active Application Filing
- 2015-01-15 CN CN201510020734.0A patent/CN104773037B/en not_active Expired - Fee Related
- 2015-01-15 CN CN201520028414.5U patent/CN204398765U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773037A (en) * | 2014-01-15 | 2015-07-15 | 株式会社普利司通 | Pneumatic tire |
| CN104773037B (en) * | 2014-01-15 | 2019-01-08 | 株式会社普利司通 | Pneumatic tire |
| CN113710504A (en) * | 2019-04-26 | 2021-11-26 | 横滨橡胶株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104773037B (en) | 2019-01-08 |
| JP6274868B2 (en) | 2018-02-07 |
| WO2015108079A1 (en) | 2015-07-23 |
| CN104773037A (en) | 2015-07-15 |
| JP2015131619A (en) | 2015-07-23 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |