CN205970642U - All -terrain vehicle pneumatic tyre - Google Patents

Abstract

The utility model discloses an all -terrain vehicle pneumatic tyre, this tire tread comprises a plurality of decorative pattern unit that is evenly distributed along tire circumference, each decorative pattern unit is including the main decorative pattern piece and vice decorative pattern piece of following tire tread center circumference symmetry and setting in turn in proper order, the main decorative pattern piece of every group and vice decorative pattern piece are extended to the tire shoulder of both sides respectively by the tread center, be close to the head of the main decorative pattern piece at tread center and cross tread midplane, and vice decorative pattern piece is close to and has the spacing distance between head and the main decorative pattern piece of main decorative pattern piece, the disconnected profile of surface that wherein is located the main decorative pattern piece of every group and the vice decorative pattern piece in near tread center establishes respectively and reduces the arc for the main decorative pattern piece that has the drop reduces arc and vice decorative pattern piece, and the high initiating terminal that reduces the arc by main decorative pattern piece respectively and the vice decorative pattern piece of main decorative pattern piece and vice decorative pattern piece reduce inner edge that the arc initiating terminal crossed from tread midplane to main decorative pattern piece and be and reduce the design promptly. Promote the nature controlled that the tire went on cross -country road surface when tire ride comfort nature can effectively be guaranteed.

Description

All-terrain vehicle pneumatic tire

Technical field

This utility model is related to a kind of tire tread profiled outline and pattern structure, refers in particular to be used in the complete of cross-country road Landform car pneumatic tire.

Background technology

All-terrain vehicle market development domestic at present is swift and violent, because all-terrain vehicle can be many in mud ground, hard place, forest land, sand ground etc. Plant different terrain downward driving, more and more consumers are keen to this multi-functional new model.In recent years, drive under muddy landform All-terrain vehicle also becomes a kind of new entertainment selection, and most fans need to be allowed for access miriness after normal cross-country road travels Landform participates in amusement match.The all-terrain vehicle tire that muddy landform travels is susceptible to soil and assembles in tire tread block bottom Phenomenon, this will reduce tread depth, make tread contour reduce original hauling ability, also increase tire weight simultaneously, Impact vehicle oil consumption.It is therefore to guarantee that tire issues in muddy landform to wave good performance, such all-terrain vehicle often assembles band There is the tire of the tread pattern structure design of strip.

Consider the particularity in muddy rough topography downward driving for the all-terrain vehicle, the all-terrain vehicle wheel of present muddy landform Frequently with tread pattern structure as shown in Figure 1, the design of this tread pattern structure can reduce spoil disposal resistance to tire, improves spoil disposal effect Really, its tyre surface is formed by along the circumferential symmetrical and staggered main pattern block 10 ' of tire, secondary pattern block 20 ', every group of main decorative pattern , substantially in strip and along tire centerplane to both sides shoulder portion oblique arrangement, this tread structure sets for block 10 ', secondary pattern block 20 ' Tire tread contour shape after the tyre inflating of meter is as shown in Figure 2.Because of the constraint between main pattern block 10 ', secondary pattern block 20 ' relatively By force, and the growth of each pattern block interval region constraint is weaker, easily formed along tire circumference is symmetrical and staggered Local Convex Go out 30 '；Simultaneously also because tread bar contact land ratio is relatively low, the constraint of tire unit tread is less, defines less after inflation Tyre surface radian, thus form narrower tyre surface ground width.Tire will be led in the process of moving under both collective effect Easily produce beat phenomenon, cause the handling decline of tire, be also susceptible to the phenomenon that circumference ground connection is beated simultaneously, have impact on car Travel comfortableness.

Tyre surface inner concave shape tyre surface wheel as disclosed in the Chinese utility model patent of Application No. CN201320466368.8 Exterior feature, it is mainly provided with, at tread contour median plane position, the central trench that a circumference runs through, and still needs to be formed after inflation is grown up To form certain drainage space, this design is mainly the drainage improving tire and prevents central trench bottom the tire tread contour of indent Crackle and the phenomenon of eccentric wear, but it does not directly lift effect to tire manipulation stability.

Utility model content

The purpose of this utility model is to provide one kind to can ensure that while tire running comfortableness, lifting tire is cross-country The handling all-terrain vehicle pneumatic tire of road traveling.

For achieving the above object, solution of the present utility model is：

A kind of all-terrain vehicle pneumatic tire, this tire tread is by several decorative pattern units being evenly distributed along tire circumference Constitute, each decorative pattern unit includes symmetrical along tire tread center circumference successively and main pattern block that is being arranged alternately and secondary pattern block, Every group of main pattern block and secondary pattern block are extended to the tire shoulder of both sides respectively from tyre surface center, the main pattern block near tyre surface center Head crosses tyre surface central plane, and secondary pattern block has spacing distance between the head and main pattern block of main pattern block； Wherein：It is set to the main flower with drop positioned at every group of main pattern block of tyre surface immediate vicinity and the profiled outline of secondary pattern block Stricture of vagina block reduces arc and secondary pattern block reduces arc, that is, the height of main pattern block and secondary pattern block reduces arc by main pattern block respectively Top and secondary pattern block reduce arc initiating terminal and cross the inner end edge of tyre surface central plane in reduction design to main pattern block.

Described main pattern block reduces arc and secondary pattern block identical, the main flower that reduces the axial distance away from tyre surface center for the arc initiating terminal Stricture of vagina block reduce arc and secondary pattern block reduce highly identical at arc initiating terminal.

Main pattern block at the same axial of the described tyre surface center left and right sides reduces arc and secondary pattern block reduces arc Highly using the high setting such as not.

Described main pattern block cross tyre surface central plane edge the inner at decorative pattern height based on pattern block reduce arc or Secondary pattern block reduces the 70%～90% of arc initiating terminal height.

Main pattern block at the same axial of the described tyre surface center left and right sides is reduced arc-height and is reduced with secondary pattern block Difference between arc-height is not higher than 4mm.

The described main pattern block positioned at tyre surface center both sides reduces arc and secondary pattern block reduces the distance between arc initiating terminal For tire section overall width 35%～55%.

Described pair pattern block reduce arc radius setting based on pattern block reduce arc radius 65% ~ 95%.

Based on interval width between described main pattern block and secondary pattern block, pattern block reduces arc and secondary pattern block reduces arc The 15%～35% of the distance between initiating terminal.

Described every group of main pattern block is circumferentially-adjacent two main decorative pattern block gaps with the head circumferential distance of secondary pattern block 35%～55%.

After such scheme, this utility model is by excellent to all-terrain vehicle air tread profiled outline and decorative pattern Change design, its tyre surface is made up of main pattern block that is central axial symmetrical along tire tread and being arranged alternately and secondary pattern block, often There is certain spacing distance to the head and secondary pattern block of main pattern block, the height of the main pattern block of each pair and secondary pattern block is by main flower Stricture of vagina block cross gradually expand to both sides shoulder portion at the inner end edge of tyre surface central plane extend form drop reduce the disconnected of arc Facial contour structure it can be ensured that while tire running comfortableness lifting tire cross-country road travel handling.

Brief description

Fig. 1 is the tread contour expanded schematic diagram of prior art tire；

Fig. 2 is the tread contour profiled outline schematic diagram of prior art tire；

Fig. 3 is this utility model tire tread pattern expanded schematic diagram；

Fig. 4 is that this utility model tire section profile reduces schematic diagram；.

Fig. 5 is A-A profiled outline schematic diagram in Fig. 3；

Fig. 6 is B-B profiled outline schematic diagram in Fig. 3；

Fig. 7 is schematic diagram after the inflation of this utility model tire section profile.

Specific embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in Figure 3,4, this utility model discloses a kind of all-terrain vehicle pneumatic tire of cross-country road, this tire Face 1 is made up of several decorative pattern units being evenly distributed along tire circumference, and each decorative pattern unit is included successively along along tire tread Heart circumference is symmetrical and the main pattern block 10 that is arranged alternately and secondary pattern block 20, and every group of main pattern block 10 and secondary pattern block 20 are by tyre surface Center extends to the tire shoulder of both sides respectively, and the head near the main pattern block 10 at tyre surface center crosses tyre surface central plane, and secondary Pattern block 20 has spacing distance between the head and main pattern block 10 of main pattern block 10；Key of the present utility model exists In：

It is set to positioned at the profiled outline structure of every group of tyre surface immediate vicinity main pattern block 10 and secondary pattern block 20 to have The main pattern block of difference reduces arc 11, secondary pattern block reduces arc 21, and that is, the height of main pattern block 10 and secondary pattern block 20 is respectively by leading Pattern block reduces the initiating terminal of arc 11 and secondary pattern block reduces arc 21 initiating terminal and crosses tyre surface central plane to main pattern block 10 Inner end edge is in reduction design.

As shown in Figure 5,6, in order to enable, main pattern block reduces arc 11 and secondary pattern block reduces arc 21 and helps tire to play preferably Handling, main pattern block reduces arc 11 and secondary pattern block reduces arc 21 initiating terminal axial distance D1, D2 away from tyre surface center Identical, main pattern block reduces arc 11 and secondary pattern block, and to reduce height H1, H2 at arc 21 initiating terminal identical.Being arranged such can be effectively true The earth balance of tyre surface center left and right sides when protecting tire ground connection, can avoid producing the beat phenomenon travelling, be greatly improved The manipulation stability of tire running, is also avoided that produce left and right sides ground connection beats it is ensured that the comfortableness of tire running simultaneously.

For avoiding main pattern block 10 and the undue reduction of secondary pattern block 20 height to lead to the comfort property of tire to reduce, main flower Based on the decorative pattern height H3 that stricture of vagina block 10 is crossed at the edge inner 12 of tyre surface central plane, pattern block reduces arc 11 or secondary pattern block Reduce the 70%～90% of arc 21 initiating terminal height H1, H2.If main pattern block 10 is crossed at the edge inner 12 of tyre surface central plane Decorative pattern height H3 too small when, easily make wheel because the difference of the main pattern block in tyre surface center 10 ground connection is excessive in vehicle travel process Tire is susceptible to the phenomenon of beat, reduces the manipulation stability of its traveling on the contrary；If conversely, main pattern block 10 crosses tyre surface center When decorative pattern height H3 at the edge of plane inner 12 is excessive, the profile that will be unable to realize effectively revising in advance tyre surface center reduces Difference in height deficiency so that tread block is grown up, affects the manipulation stability of its cross-country road traveling on the contrary.

For guaranteeing to be provided that preferable manipulation stability and comfortableness, the tyre surface center left and right sides same axis during tire running Reduce arc 11 to the main pattern block at distance and secondary pattern block reduces the height of arc 21 using the high setting such as not.This tread contour is tied In structure, main pattern block 10 is crossed tyre surface central plane and is produced larger constraint to tyre surface, grows up less, be designed with relatively after inflation Big reduces arc-height.Secondary pattern block 20 produces less constraint to tyre surface, grows up larger, be designed with less reducing after inflation Arc-height.The beat that the growth difference of tyre surface left and right sides is brought is revised by the not contour arc-height of reducing being pre-designed With the problem beated it is ensured that the manipulation stability of tire running and comfortableness.At the same axial of the tyre surface center left and right sides Main pattern block reduce arc 11 height H5 and difference that secondary pattern block reduces between arc 21 height H6 is not higher than 4mm.It is arranged such The decline of tyre surface center left and right sides earth balance can be avoided, cause tire runout and affect the manipulation stability of its traveling, Also can avoid simultaneously tire during circumference is advanced same circumferential position ground connection beat excessive it is ensured that tire running comfortable Property.

In order to make, main pattern block reduces arc 11 and secondary pattern block reduces arc 21 and is provided that optimal handling, in tyre surface The main pattern block of heart both sides reduces arc 11 and secondary pattern block reduces the distance between arc 21 initiating terminal D for tire section overall width OW 35%～55%.If main pattern block reduces arc 11 and secondary pattern block reduce the distance between arc 21 initiating terminal D excessive when, it will mistake Degree reduces the rigidity of tire tread so that tyre contact width too increases, and causes the manipulation feel of tire running to become weight, finally Produce handling downward trend；If conversely, main pattern block reduces arc 11 and secondary pattern block reduces between arc 21 initiating terminal Apart from D it is impossible to the profile effectively revising tyre surface center in advance reduces difference in height it is impossible to so that tread block is grown into when too small Smooth out smooth ground structure, affect the handling of its cross-country road traveling on the contrary.

Additionally, growing into the smooth ground structure of smooth-going for each pattern block of tyre surface after guaranteeing tyre inflating, secondary pattern block reduces Based on the radius R2 setting of arc 21, pattern block reduces the 65% ~ 95% of the radius R1 of arc 11.If secondary pattern block reduces the radius of arc 21 Will lead to when R2 is too small secondary pattern block 20 grow up deficiency so that after tyre inflating tread block cannot grow into smooth-going smooth Ground structure；If the radius R2 that secondary pattern block reduces arc 21 is excessive, it will lead to secondary pattern block 20 too to grow up and produce wheel Tire ground connection is beated, and affects its comfortableness on the contrary.

When tyre inflating travels, in the presence of cavity pressure in tire, because main pattern block 10 and secondary pattern block 20 it Between be provided with certain spacing distance, the tread base 30 of this interval fetters less, and the expansion of tread base 30 herein is grown up relatively Greatly, the main pattern block 10 that can revise tyre surface center in advance reduces difference in height so that tread block becomes with secondary pattern block 20 profile Smooth-going shown in a length of Fig. 7 smooth ground connection shape, can avoid main pattern block 10 and secondary pattern block 20 to lead to because of undue growth Edge protrude, reduce travel tire beat it is ensured that tire cross-country road traveling under comfortableness.Each main pattern block simultaneously 10th, the block height of secondary pattern block 20 is crossed at the inner end edge 12 of tyre surface central plane respectively to both sides from main pattern block 10 Shoulder portion gradually expands extension, can suitably reduce the rigidity at tire tread center, the width of oversize tyre ground connection, can greatly promote The manipulation stability of tire running.Additionally, the height of each main pattern block 10 is by the inner end edge 12 crossing tyre surface central plane Place gradually expands extension to side shoulder portion respectively, suitably can reduce skid resistance when tire is turned, provide and preferably manipulate Performance.

Certainly, the structure of tread base 30 can adopt as shown in Figure 4 with tyre surface center be symmetrical smooth arc-shaped surface symmetrical Structure, may also be employed and main pattern block 10 and the secondary parallel drop structure reducing of pattern block 20 outline.

For avoiding the excessive growth of tyre surface center, lead to main pattern block 10 and secondary pattern block 20 edge transition protrude and Affect its comfortableness, based on the interval width L1 between main pattern block 10 and secondary pattern block 20, pattern block reduces arc 11 and secondary decorative pattern Block reduces the 15%～35% of the distance between arc 21 initiating terminal D.Interval width between main pattern block 10 and secondary pattern block 20 When L1 setting is excessive, main pattern block 10 and secondary pattern block 20 edge transition are grown up and are caused the increasing of beating travelling, and also hold simultaneously Easily occur the ground connection at tire tread center uneven, finally affect its comfort property；Conversely, when main pattern block 10 and secondary pattern block It is impossible to the profile effectively revising tyre surface center in advance reduces difference in height so that tire when interval width L1 setting between 20 is too small Face pattern block is grown up not enough it is impossible to the outer contour shape of heart ground area formation smooth-going in the tread is it is impossible to effectively lift tire Manipulation stability under cross-country road travels.

Additionally, the head circumferential distance L2 of every group of main pattern block 10 and secondary pattern block 20 is circumferentially-adjacent two main pattern blocks The 35%～55% of 10 interval P.It is arranged such the ride comfort that can increase centre-point earth it is ensured that the comfortableness of tire running, simultaneously Skid resistance when tire is turned, lifting tire under steam handling can suitably be lowered.

Having manufactured experimently multiple tire front-wheel specifications using such as Fig. 1 tyre tread structural style is that AT26X9-12, trailing wheel specification are The all-terrain vehicle tire of AT26X11-12 simultaneously carries out performance test to them and evaluates.Handling, comfortableness and overall performance are By using in following condition and be provided with the vehicle of each test tire and travel on cross-country road, and by the sense organ of driver Respectively with conventional case be 100 index assessment is handling, comfortableness and overall performance, the bigger performance of numerical value is more superior.Concrete survey Strip part is as follows.

Wheel rim：Front-wheel 7.0 AT X12, trailing wheel 9.0 AT X12

Vehicle：The all-terrain vehicle of capacity 500cc

Test blast：45kPa

Test landform：Cross-country landform

Test result such as following table：

After test result can confirm that using this utility model tread contour profiled outline structure design, tire can Realize guaranteeing the handling that while tire running comfortableness, lifting tire travels in cross-country road.

The above, only this utility model preferred embodiment, the scope of this utility model enforcement is not limited with this, according to this Equivalence changes and modification that the technical scheme of utility model and description are made, all should belong to the model that this utility model is covered Enclose.

Claims (9)

1. a kind of all-terrain vehicle pneumatic tire, this tire tread is by several decorative pattern unit structures being evenly distributed along tire circumference Become, each decorative pattern unit includes symmetrical along tire tread center circumference successively and main pattern block that is being arranged alternately and secondary pattern block, often Organize main pattern block and secondary pattern block is extended to the tire shoulder of both sides from tyre surface center, respectively near the head of the main pattern block at tyre surface center Tyre surface central plane is crossed in portion, and secondary pattern block has spacing distance between the head and main pattern block of main pattern block；Its It is characterised by：It is set to that there is drop positioned at every group of main pattern block of tyre surface immediate vicinity and the profiled outline of secondary pattern block Main pattern block reduces arc and secondary pattern block reduces arc, and that is, the height of main pattern block and secondary pattern block reduces arc by main pattern block respectively Initiating terminal and secondary pattern block to reduce the inner end edge that arc initiating terminal crosses tyre surface central plane to main pattern block be in reduction design.

2. all-terrain vehicle pneumatic tire as claimed in claim 1 it is characterised in that：Described main pattern block reduces arc and secondary decorative pattern It is identical that block reduces the axial distance away from tyre surface center for the arc initiating terminal, and main pattern block reduces arc and secondary pattern block reduces at arc initiating terminal Highly identical.

3. all-terrain vehicle pneumatic tire as claimed in claim 1 it is characterised in that：Described tyre surface center left and right sides same axis Reduce arc to the main pattern block at distance and secondary pattern block reduces the height of arc using the high setting such as not.

4. the all-terrain vehicle pneumatic tire as described in claim 1,2 or 3 it is characterised in that：Described main pattern block crosses tyre surface Based on decorative pattern height at edge the inner of central plane, pattern block reduces arc or secondary pattern block reduces the 70% of arc initiating terminal height ～90%.

5. all-terrain vehicle pneumatic tire as claimed in claim 3 it is characterised in that：Described tyre surface center left and right sides same axis Reduce arc-height to the main pattern block at distance and secondary pattern block reduces the difference between arc-height and is not higher than 4mm.

6. the all-terrain vehicle pneumatic tire as described in claim 1,2 or 3 it is characterised in that：Described positioned at tyre surface center both sides Main pattern block reduce arc and secondary pattern block reduces that the distance between arc initiating terminal is tire section overall width 35%～55%.

7. the all-terrain vehicle pneumatic tire as described in claim 1,2 or 3 it is characterised in that：Described pair pattern block reduces arc Based on radius setting, pattern block reduces the 65% ~ 95% of the radius of arc.

8. the all-terrain vehicle pneumatic tire as described in claim 1,2 or 3 it is characterised in that：Described main pattern block and secondary decorative pattern Based on interval width between block, pattern block reduces arc and secondary pattern block reduces the 15%～35% of the distance between arc initiating terminal.

9. the all-terrain vehicle pneumatic tire as described in claim 1,2 or 3 it is characterised in that：Described every group of main pattern block and pair The head circumferential distance of pattern block is the 35%～55% of circumferentially-adjacent two main decorative pattern block gaps.