CN203681162U

CN203681162U - Pneumatic tire for motocross

Info

Publication number: CN203681162U
Application number: CN201320888324.4U
Authority: CN
Inventors: 陈秀雄
Original assignee: Cheng Shin Rubber Xiamen Ind Ltd
Current assignee: Cheng Shin Rubber Xiamen Ind Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-07-02
Anticipated expiration: 2023-12-31

Abstract

The utility model discloses a pneumatic tire for a motocross. A tread of the pneumatic tire consists of a transversely long rectangular patterned blocks which are arranged along the circumferential direction of the tire at intervals and transversely fully distributed on the width of the whole tread and comprise first grounding surfaces and second grounding surfaces according to the traveling direction of the tire; the first grounding surfaces and the second grounding surfaces are arc surfaces. The single transversely long rectangular patterned blocks are fully distributed on the width of the whole tread and are arranged along the circumferential direction of the tire at the intervals, so that the rigidity of the patterned blocks can be effectively enhanced, and the traction performance of the tire is improved; due to the arrangement of the first grounding surfaces and the second grounding surfaces, which are the arc surfaces, of all the transverse rectangular patterned blocks, the sand discharging performance of the tire can be effectively improved.

Description

Motor-cross air-inflation tyre

Technical field

The utility model is about a kind of air-inflation tyre, refers to especially a kind of motor-cross air-inflation tyre.

Background technology

As shown in Figure 7, the motor cycle tire 10 ' for roughness pavement that cross-country motorcycle match in the past etc. is used, tread portion is divided into three regions, i.e. middle section A, zone line B and shoulder zone C.Wherein middle section A is made up of the oblong pattern block 11 ' that is roughly horizontally set, zone line B and shoulder zone C form by being roughly trapezoidal middle pattern block 12 ' and pattern block on tire shoulder 13 ', each region pattern block is circumferentially arranged side by side, center running lug 11 ' is circumferentially arranged alternately with middle pattern block 12 ', middle pattern block 12 ' is circumferentially arranged alternately with pattern block on tire shoulder 13 ', better sand discharge mud performance can be provided, separately in order to strengthen tread contour integral rigidity, between interval center running lug 11 ' and middle pattern block 12 ', increase by the 14 ' design of building bridge, between middle pattern block 12 ' and interval pattern block on tire shoulder 13 ', also increase by the 14 ' design of building bridge, build bridge 14 ' in tyre surface formation " X " type, so setting can provide better tractive property.But the tire of this kind of tread design, when match, because each region pattern block is more independent on husky mud ground road surface, the integral rigidity of pattern block or Shortcomings, tractive property is also undesirable, and the circumferential spacing of another each pattern block is less, and the performance of sand discharge mud is also undesirable.

Utility model content

It is a kind of for husky mud ground road surface motor-cross air-inflation tyre that the purpose of this utility model is to provide, and makes tire have better traction property and sand discharge mud performance.

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

A kind of motor-cross air-inflation tyre, its tyre surface is made up of the rectangle pattern block of growing crosswise being circumferentially set in distance along tire and be laterally covered with whole tread width, the rectangle pattern block of respectively growing crosswise comprises first ground plane and rear ground plane according to tire trend, and this elder generation's ground plane and rear ground plane are set to arc surface.

The arc surface of described first ground plane is to be set to recessed face from the rectangle pattern block top of growing crosswise.

The top initial point of the female face is arranged on 1/5 place of rectangle pattern block along tire circumferential width that grow crosswise.

The recessed width of the female face is set to grow crosswise rectangle pattern block along 5% ~ 15% of tire circumferential width, and the degree of depth of recessed face is set to 50% ~ 80% of the rectangle pattern block degree of depth of growing crosswise.

The female face adds chamfering by two inclined-planes and forms.

The arc surface of described rear ground plane is added and is faced directly the cascaded surface forming by two sections of arc surfaces, and cascaded surface is to form downwards backward from the rectangle pattern block top of growing crosswise.

Described cascaded surface is set to 40% ~ 60% of tread width along tire circumferential width, and the degree of depth is set to 50% ~ 80% of the rectangle pattern block degree of depth of growing crosswise.

Described first ground plane, rear ground plane and tire shoulder are arc surface.

At the bottom of described groove of growing crosswise rectangle pattern block and grow crosswise between rectangle pattern block, be provided with curved surface shading.

The height of described curved surface shading is set to 0.8mm ~ 2.5mm.

Adopt after such scheme, the utility model is by motor-cross air tread pattern structure optimal design, the single rectangle pattern block of growing crosswise is covered with whole tread width and is circumferentially set in distance along tire, can effectively increase pattern block rigidity, improve tire tractive property, and each horizontal rectangle pattern block be set to the first ground plane of arc surface can actv. raising tire sand discharge mud performance with rear ground plane.

Accompanying drawing explanation

Fig. 1 is air-inflation tyre section section-drawing;

Fig. 2 is the utility model tire embodiment 1 decorative pattern plane outspread drawing;

Fig. 3 is the utility model tire embodiment 2 decorative pattern plane outspread drawings;

Fig. 4 is the schematic perspective view of the utility model tire embodiment 2;

Fig. 5 is the A-A ' section-drawing in Fig. 3;

Fig. 6 is the B-B ' section-drawing in Fig. 3;

Fig. 7 is prior art tire tread plane outspread drawing.

The specific embodiment

Explain embodiment of the present utility model below in conjunction with accompanying drawing:

As Fig. 1 to Fig. 6, the utility model has disclosed a kind of for husky mud ground road surface motor-cross air-inflation tyre, to realize by air tread pattern structure being optimized to design, its tyre surface 20 is made up of the rectangle pattern block 21 of growing crosswise being circumferentially set in distance along tire and be laterally covered with whole tread width TW, the rectangle pattern block 21 of respectively growing crosswise comprises first ground plane 211 and rear ground plane 212 according to tire trend, and this elder generation's ground plane 211 is set to arc surface with rear ground plane 212.

This single rectangle pattern block 21 of growing crosswise is covered with whole tread width TW, can increase pattern block rigidity, improves tractive property, and the first ground plane 211 that is set to arc surface can improve tire sand discharge mud performance by actv. with rear ground plane 212.

In order to increase the marginal element of the rectangle pattern block 21 of growing crosswise, improve tractive property, this arc surface of growing crosswise the first ground plane 211 of rectangle pattern block 21 is from top, to be set to recessed face 213, the top initial point C of this recessed face 213 can be arranged on 1/5 place of rectangle pattern block 21 along tire circumferential width W that grow crosswise, and the recessed width W 1 of recessed face 213 is set to grow crosswise rectangle pattern block 21 along 5% ~ 15% of tire circumferential width W, the depth H 1 of recessed face 213 is set to 50% ~ 80% of rectangle pattern block 21 depth H of growing crosswise, and recessed face 213 adds chamfering E by two inclined-plane D, F and forms.Then the arc surface of ground plane 212 is added and is faced directly the cascaded surface 214 that H forms by two sections of arc surface G, I; cascaded surface 214 is to form downwards backward from the top of recessed face 213; cascaded surface 214 is set to 40% ~ 60% of tread width TW along tire circumferential width W2; depth H 2 is set to 50% ~ 80% of rectangle pattern block 21 depth H of growing crosswise; easily make pattern block be absorbed in husky mud ground; guarantee pattern block rigidity, bring into play better tractive property.

Concentrate for the stress that reduces the rectangle pattern block 21 of growing crosswise simultaneously, improve sand discharge mud performance, arrange that first ground plane 211 is arc surface 215 with tire shoulder, rear ground plane 212 is arc surface 216 with tire shoulder.

As shown in Fig. 3,4,6, another for improving at the bottom of groove 25 intensity, growing crosswise rectangle pattern block 21 and grow crosswise and increase the design of curved surface shading 22 between rectangle pattern block 21, its height H 3 is set to 0.8mm ~ 2.5mm.

So whole installation, the marginal element of the rectangle pattern block 21 of growing crosswise is high, and respectively grow crosswise rectangle pattern block 21 and the spacing of growing crosswise between rectangle pattern block 21 are large, and better tractive property and sand discharge mud performance can be provided in the time of husky mud ground road traveling.

After using the utility model technology, select the specification of 110/90-19 62M TT for cross-country motorcycle trailing wheel, each testing tire be loaded on the wheel rim of 2.50X19 and fill the interior pressure of 91kPa, be arranged on the motor bike of free air capacity 450CC, on the road of desert, compete for speed and while travelling, its traction property and sand discharge mud performance are evaluated, by the sensory evaluation of chaufeur, contrast with past case, tire traction property of the present utility model and sand discharge mud performance are more excellent.

Claims

1. a motor-cross air-inflation tyre, it is characterized in that: its tyre surface is made up of the rectangle pattern block of growing crosswise being circumferentially set in distance along tire and be laterally covered with whole tread width, the rectangle pattern block of respectively growing crosswise comprises first ground plane and rear ground plane according to tire trend, and this elder generation's ground plane and rear ground plane are set to arc surface.

2. motor-cross air-inflation tyre as claimed in claim 1, is characterized in that: the arc surface of described first ground plane is to be set to recessed face from the rectangle pattern block top of growing crosswise.

3. motor-cross air-inflation tyre as claimed in claim 2, is characterized in that: the top initial point of the female face is arranged on 1/5 place of rectangle pattern block along tire circumferential width that grow crosswise.

4. motor-cross air-inflation tyre as claimed in claim 2 or claim 3, it is characterized in that: the recessed width of the female face is set to grow crosswise rectangle pattern block along 5% ~ 15% of tire circumferential width, and the degree of depth of recessed face is set to 50% ~ 80% of the rectangle pattern block degree of depth of growing crosswise.

5. motor-cross air-inflation tyre as claimed in claim 2, is characterized in that: the female face adds chamfering by two inclined-planes and forms.

6. motor-cross air-inflation tyre as claimed in claim 1, is characterized in that: the arc surface of described rear ground plane is added and faced directly the cascaded surface forming by two sections of arc surfaces, and cascaded surface is to form downwards backward from the rectangle pattern block top of growing crosswise.

7. motor-cross air-inflation tyre as claimed in claim 6, is characterized in that: described cascaded surface is set to 40% ~ 60% of tread width along tire circumferential width, the degree of depth is set to 50% ~ 80% of the rectangle pattern block degree of depth of growing crosswise.

8. motor-cross air-inflation tyre as claimed in claim 1, is characterized in that: described first ground plane, rear ground plane and tire shoulder are arc surface.

9. motor-cross air-inflation tyre as claimed in claim 1, is characterized in that: described in grow crosswise rectangle pattern block and the groove of growing crosswise between rectangle pattern block at the bottom of be provided with curved surface shading.

10. motor-cross air-inflation tyre as claimed in claim 9, is characterized in that: the height of described curved surface shading is set to 0.8mm ~ 2.5mm.