CN104669949B

CN104669949B - Tire shoulder pattern structure for tire

Info

Publication number: CN104669949B
Application number: CN201410818868.2A
Authority: CN
Inventors: 陈秀雄
Original assignee: Cheng Shin Rubber Xiamen Ind Ltd
Current assignee: Cheng Shin Rubber Xiamen Ind Ltd
Priority date: 2014-12-25
Filing date: 2014-12-25
Publication date: 2017-02-22
Anticipated expiration: 2034-12-25
Also published as: CN104669949A

Abstract

The invention discloses a tire shoulder pattern structure for a tire. Pattern blocks with interval distribution of grooves and bocks are formed at two sides of a tread in the peripheral direction, wherein the tire shoulder pattern blocks extend to patterns at the upper tire side; a mud advance traction groove and a mud back-up traction groove are formed in a front and back manner; the shapes of the tire shoulder pattern blocks at the left side and the right side of the tread are in positive or reverse symmetric arrangement about the axial direction of the tire; the mud advance traction groove is formed by at least one segment of arc from the outer edges and one lateral edges of the tire shoulder pattern blocks to the pattern blocks; the mud back-up traction groove is formed by at least one segment of arc from the outer edges and the other lateral edges of the tire shoulder patter blocks to the pattern blocks. Therefore, the traction performance, the cooling effect and the mud discharge performance of the tire are effectively improved by the tire shoulder patterns formed by the tire shoulder pattern blocks; and meanwhile, the aesthetic property of the tire is enhanced.

Description

A kind of tire shoulder pattern structure of tire

Technical field

The present invention is the pattern structure with regard to tire, particularly relates to a kind of tire shoulder decorative pattern of the tire being used in muddy road conditions Structure.

Background technology

At present tyre tread be mainly designed to according to supporting vehicle and use condition, especially with road conditions, direct shadow Ring the kind of design of tread contour.And for some special road conditions, the such as Terrain surface such as miriness, sand ground, marsh, and or some get over Wild road conditions, the design to tyre shoulders decorative pattern is increasingly valued, and the fact also demonstrates that the shoulder decorative pattern of tire in different road conditions pair The performances such as traction, radiating, spoil disposal all have large effect.

At present for truck tyre, especially trailing wheel, for increasing the cutting resistance of tractive force and non-road conditions of mating formation Can, decorative pattern often designs for transverse pattern, forms ditch and the overall decorative pattern of block gap distribution in a circumferential direction（As Fig. 5 institute Show）.In order to lift the belt cutting-resisting property of non-paved road, frequently with continent than design, so it is formed for larger flower in shoulder Line block.Shown in cooperation Fig. 6, for lifting the thermal diffusivity of shoulder lug 2 ', generally, can design not in pattern block 2 ' sidepiece The groove 5 ' of similar shape.So both contribute to radiating, the hauling ability of mud ground can be lifted again.But such design, makes actual With during, but there is larger contrast with estimated effect.It is primarily due to tire after using through mud ground, mud can fill up Groove 5 ' on pattern block 2 ', is difficult to discharge, had both affected the radiating of pattern block 2 ', and reduced the positive shadow to hauling ability again Ring.

Content of the invention

It is an object of the invention to provide a kind of tire shoulder pattern structure of tire, it is in lifting tire in muddy road conditions traction property While energy and spoil disposal performance, the cleaning of pattern block on tire shoulder groove can be kept, and persistently gather around reeded heat dispersion.

For achieving the above object, the solution of the present invention is：

A kind of tire shoulder pattern structure of tire, it forms ditch and the tire of block gap distribution on tyre surface both sides are with circumferencial direction Shoulder pattern block, wherein：Described pattern block on tire shoulder extend on the decorative pattern on sidewall in be provided with tandem mud ground advance traction grooved and Mud ground reversing traction grooved；The pattern block on tire shoulder shape of the tyre surface left and right sides is in be symmetrical arranged forward or backwards with tire axial；Its Middle mud ground advance traction grooved is to be formed with least one section of circular arc in pattern block from the outer rim of pattern block on tire shoulder with lateral margin；Mud ground falls Car traction grooved is to be formed with least one section of circular arc in pattern block from the outer rim of pattern block on tire shoulder with another lateral margin.

Camber line between the upper extreme point of described mud ground advance traction grooved and lower extreme point adopts multi-section circular arc to arrange.

Described mud ground advance traction grooved length vertically and mud ground advance traction grooved width ratio circumferentially be 0.8 ~ 1.8.

The area of described mud ground advance traction grooved is the 0.25 ~ 0.35 of pattern block on tire shoulder area.

Camber line between the upper extreme point of described mud ground reversing traction grooved and lower extreme point adopts multi-section circular arc to arrange.

Described mud ground reversing traction grooved length vertically and mud ground reversing traction grooved width ratio circumferentially be 1.3 ~ 2.3.

Described mud ground advances and draws groove depth and the mud ground reversing traction groove depth ratio with shoulder portion groove depth respectively It is worth for 0.15 ~ 0.45.

Described mud ground advances and draws groove depth and mud ground reversing traction grooved deep equality.

Described mud ground advance traction groove area and mud ground reversing traction groove area sum are whole pattern block on tire shoulder area 0.3~0.5.

The groove face of described mud ground advance traction grooved and mud ground reversing traction grooved is to bottom land with surface blending.

After such scheme, the tire shoulder decorative pattern of the pattern block on tire shoulder formation of the present invention can effectively lift the traction property of tire Energy, radiating effect and spoil disposal performance, strengthen the aesthetic property of tire meanwhile.

Brief description

Fig. 1 is the plane outspread drawing to decorative pattern tail end for the tread contour of the present invention；

Fig. 2 is tire section partial sectional view of the present invention；

Fig. 3 is the partial schematic diagram of tire shoulder decorative pattern of the present invention；

Fig. 4 is the side view of tire of the present invention；

Fig. 5 is that prior art tire shoulder slotless decorative pattern launches partial schematic diagram；

Fig. 6 has groove decorative pattern to launch partial schematic diagram for prior art tire shoulder.

Specific embodiment

Explain embodiments of the present invention below in conjunction with accompanying drawing：

As shown in Figures 1 to 4, present invention is disclosed a kind of pneumatic tire, it includes tyre surface 1, tyre surface 1 in a circumferential direction Form ditch and the overall decorative pattern of block gap distribution, form pattern block on tire shoulder 2 in tyre surface 1 both sides；The present invention it is critical only that：

It is in be provided with mud ground advance traction grooved 3 and mud ground in tandem that described pattern block on tire shoulder 2 extends on the decorative pattern on sidewall Reversing traction grooved 4；Pattern block on tire shoulder 2 shape of tyre surface 1 left and right sides is in be symmetrical arranged forward or backwards with tire axial；Wherein Mud ground advance traction grooved 3 is to be formed with least one section of circular arc in pattern block from outer rim A of pattern block on tire shoulder 2 with lateral margin；Mud ground Reversing traction grooved 4 is to be formed with least one section of circular arc in pattern block from outer rim A of pattern block on tire shoulder 2 with another lateral margin.With this The effectively hauling ability of lifting tire, radiating effect and spoil disposal performance, strengthen the aesthetic property of tire simultaneously.

Coordinate shown in each figure, the camber line between the upper extreme point 3a and lower extreme point 3b of described mud ground advance traction grooved 3 also can be adopted With multi-section circular arc setting, its length vertically is set to L1, and width circumferentially is set to W1, then above-mentioned mud ground advances and draws The width W1 of length L1 of groove 3 and mud ground advance traction grooved 3 should meet L1/ W1=0.8 ~ 1.8, if above-mentioned ratio is less than 0.8, though The rigidity reinforced of shoulder region, but it is reduction of sludge discharge effects, the hauling ability advanced and the heat dispersion of mud ground；If above-mentioned ratio Value is more than 1.8, and the rigidity of the shoulder portion of tire declines, and is easily caused tire centerline eccentric wear.In addition, mud ground advance traction grooved 3 Area is S1, and it should be the 0.25 ~ 0.35 of pattern block on tire shoulder 2 area S, is conducive to the exclusion of soil and can prevent tire from occurring partially Abrasion are bad.

Coordinate shown in each figure, the arc between the upper extreme point 4a and lower extreme point 4b of mud ground reversing traction grooved 4 of embodiments herein Its length vertically also can be set to L2, and width circumferentially is set to W2, then above-mentioned mud ground using multi-section circular arc setting by line The width W2 of length L2 of reversing traction grooved 4 and mud ground reversing traction grooved 4 should meet L2/ W2=1.3 ~ 2.3, if above-mentioned ratio is little In 1.3, in reversing, hauling ability declines tire and sludge discharge effects are inconspicuous；If above-mentioned ratio is more than 2.3, tire is in reversing Hauling ability rises, but notch leads to greatly very much the rigidity of tire shoulder to decline, and is easily caused tire centerline eccentric wear, thus affecting tire Service life.

In order to reach more preferable sludge discharge effects, the depth H 2 of mud ground advance traction grooved 3 depth H 1 and mud ground reversing traction grooved 4 Should meet for 0.15 ~ 0.45 with the ratio of the depth H of shoulder portion groove 5 respectively（Shoulder portion groove depth H refers to tire herein Take on summit B to the vertical range of groove bottom C）If above-mentioned ratio is less than 0.15, and mud ground advance traction grooved 3 and mud ground reversing are led Approaching channel 4 depth is too shallow, and hauling ability and spoil disposal performance are inconspicuous, reduces the heat dispersion of tire；If above-mentioned ratio is more than 0.45, The decorative pattern being easily caused shoulder portion rigidly declines, the service life of impact tire, the preferably depth H 1 of mud ground advance traction grooved 3 and mud The depth H 2 of ground reversing traction grooved 4 is equal.

Further, the area S2 sum of the area S1 of mud ground advance traction grooved 3 and mud ground reversing traction grooved 4 should be whole tire shoulder The 0.3 ~ 0.5 of pattern block 2 area S, such design can guarantee that the rigidity of tire shoulder and plays good heat dispersion.Institute State mud ground advance traction grooved 3 and mud ground move backward traction grooved 4 groove face to bottom land with surface blending so as to when liftoff, in groove Deposition can have the active force of centrifugal force, moves along this curved surface, smoothly drives the soil in shoulder portion groove 5 smoothly to arrange further Go out.

Performance evaluation：As following table

Tire heat dispersion：Evaluated with indoor durable travel time, travel time is longer, heat dispersion is better（Objective Evaluate）

Tire wear consumption energy：With condition real vehicle traveling, to wear away mileage as evaluation（Objective evaluation）.

Hauling ability：Using the heavy-duty tricycle of 200cc, air pressure is 400kPa, loading capacity 500kg, in mud ground road surface, enters Row straight trip, manipulation when turning and moveing backward is evaluating（Subjective assessment）.

Evaluate all with 100 as index, the bigger performance of numerical value is more excellent.

Summarize：The mud ground advance hauling ability of embodiment, mud ground reversing hauling ability, heat dispersion are superior to comparative example, And tread wear performance is suitable.

Claims

1. the tire shoulder pattern structure of a kind of tire, it forms ditch and the tire shoulder of block gap distribution on tyre surface both sides are with circumferencial direction Pattern block it is characterised in that：It is in be provided with mud ground advance in tandem to lead that described each pattern block on tire shoulder extends on the decorative pattern on sidewall Approaching channel and mud ground reversing traction grooved；The pattern block on tire shoulder shape of the tyre surface left and right sides is in symmetrically to set forward or backwards with tire axial Put；Wherein mud ground advance traction grooved is the tire longitudinal direction with pattern block on tire shoulder for the outer rim of the tire width direction from pattern block on tire shoulder The lateral margin in direction is formed with least one section of circular arc in pattern block；Mud ground move backward traction grooved be from the outer rim of pattern block on tire shoulder with another One lateral margin is formed with least one section of circular arc in pattern block.

2. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground advance traction grooved Camber line between upper extreme point and lower extreme point also can be using multi-section circular arc setting.

3. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground advance traction grooved edge The length of axial direction and mud ground advance traction grooved width ratio circumferentially are 0.8 ~ 1.8.

4. a kind of tire as described in claim 1,2 or 3 tire shoulder pattern structure it is characterised in that：Described mud ground advances and leads The area of approaching channel is the 0.25 ~ 0.35 of pattern block on tire shoulder area.

5. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground reversing traction grooved Camber line between upper extreme point and lower extreme point adopts multi-section circular arc to arrange.

6. a kind of tire as described in claim 1 or 5 tire shoulder pattern structure it is characterised in that：Described mud ground reversing traction Groove length vertically is 1.3 ~ 2.3 with mud ground reversing traction grooved width ratio circumferentially.

7. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground advances and draws groove depth Degree and mud ground reversing traction groove depth are 0.15 ~ 0.45 with the ratio of shoulder portion groove depth respectively.

8. a kind of tire as described in claim 1 or 7 tire shoulder pattern structure it is characterised in that：Described mud ground advances and draws Groove depth and mud ground reversing traction grooved deep equality.

9. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground advances and draws groove face Long-pending is the 0.3 ~ 0.5 of whole pattern block on tire shoulder area with mud ground reversing traction groove area sum.

10. as claimed in claim 1 a kind of tire tire shoulder pattern structure it is characterised in that：Described mud ground advance traction grooved With mud ground move backward traction grooved groove face to bottom land with surface blending.