CN112109500A - Block-shaped pattern block of tire - Google Patents
Block-shaped pattern block of tire Download PDFInfo
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- CN112109500A CN112109500A CN202011198634.4A CN202011198634A CN112109500A CN 112109500 A CN112109500 A CN 112109500A CN 202011198634 A CN202011198634 A CN 202011198634A CN 112109500 A CN112109500 A CN 112109500A
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- block
- pattern block
- pattern
- annular bulge
- tire
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- 230000002093 peripheral effect Effects 0.000 claims description 40
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009825 accumulation Methods 0.000 abstract description 11
- 230000007704 transition Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 241000406668 Loxodonta cyclotis Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000001968 nicotinic acid Nutrition 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- 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
- B60C11/0318—Tread patterns irregular patterns with particular pitch sequence
-
- 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
- B60C11/0327—Tread patterns characterised by special properties of the tread pattern
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a block pattern block of a tire, which has an uneven curved surface on the surface and a lower edge than the inner side of the edge. Effectively relieve the side accumulation effect of the pattern block with the traditional structure and the uneven distribution state of the grounding pressure/stress caused by the side accumulation effect, thereby prolonging the service life of the tire.
Description
Technical Field
The invention relates to a tire, in particular to a block-shaped pattern block of the tire.
Background
As shown in FIG. 3, in a conventional block structure, the block surface is cut on a crown curve of a tire, and the crown curve is formed by rotating one or more curves around the axis of the tire. Therefore, the surface of the common pattern block is represented by a flat curved surface, and the edge part is mostly a sharp edge which is approximate to a right angle.
According to the pattern block structure, under the grounding compression state, the pattern block is subjected to radial and lateral compression force, the pattern block is extruded and deformed, due to the incompressibility of rubber materials, the rubber of the pattern block can generate transverse expansion, the rubber expands towards the edge of the pattern block, and the sharp edge at the edge of the pattern block cuts into the ground to cause the expansion resistance, so that the rubber materials are accumulated at the edge of the pattern block, and the grounding pressure and stress concentration are formed at the edge of the pattern block; meanwhile, materials at the edges of the pattern blocks are accumulated, so that the grounding stress of the central area of the pattern blocks is reduced indirectly; in the non-ground-contact central zone, the blocks are simultaneously deformed by lateral compression, and in these zones, the surface stresses of the blocks become extremely uneven under the influence of complex forces. By means of finite element simulation means, the uneven stress distribution state caused by the fact that the rubber materials of the pattern blocks are accumulated on the edge and the pattern blocks are affected by complex acting force can be visually seen, so that uneven wear of the pattern blocks is caused, specifically, the uneven wear of the pattern blocks is represented as rapid wear and serious cutting of the edge of the pattern blocks, and the deformed wear of the pattern blocks seriously affects the whole service life and the appearance of the tire, and particularly, the figure 4 and the figure 5 are shown.
Disclosure of Invention
In order to solve the problems, the invention provides a block-shaped pattern block of a tire, which effectively relieves the edge accumulation effect of the pattern block with the traditional structure and the uneven distribution state of the grounding pressure/stress caused by the edge accumulation effect, thereby prolonging the service life of the tire.
The object of the invention is achieved in the following way: a block pattern block of a tire, the surface of the pattern block is a curved surface which is not flat, and the peripheral edge of the pattern block is lower than the inner side of the peripheral edge of the pattern block.
At least one circle of annular bulge is arranged on the block-shaped pattern block of the tire, and the annular bulge enables the peripheral edge of the pattern block to be lower than the inner side of the peripheral edge of the pattern block.
An annular bulge is arranged between the central point of the pattern block and the edge of the periphery of the pattern block, and the central point of the pattern block is positioned inside the annular bulge.
The inner and outer contour lines of the annular bulge are respectively parallel to the outer contour line of the whole pattern block where the annular bulge is located.
A circle of annular bulge is arranged between the central point of the pattern block and the edge of the periphery of the pattern block, and the central point of the pattern block is positioned inside the annular bulge.
At least two rings of annular bulges are arranged between the central point of the pattern block and the peripheral edge of the pattern block, and the central point of the pattern block is positioned in the annular bulges.
Along the normal direction of the surface of the tire pattern, the position of the highest point of the annular bulge is 0.5-3 mm larger than the central point of the pattern block.
Along the normal direction of the surface of the tire pattern, the position of the highest point of the annular bulge is 0.5-3 mm higher than the peripheral edge of the pattern block.
The annular bulge is smoothly connected with the central point of the pattern block and the peripheral edge of the pattern block through smooth curved surfaces respectively.
The annular bulge is located in 1/2-3/4 areas of the distance from the center point of the pattern block to the edge of the pattern block.
According to the block-shaped pattern block of the tire, the surface of the pattern block is an uneven curved surface, and the peripheral edge of the pattern block is lower than the inner side of the periphery of the pattern block, so that the inner side part of the periphery of the pattern block is firstly grounded, and the edge part of the pattern block is not grounded, so that a space for transverse expansion exists, and the edge accumulation effect can be effectively relieved.
A circle of annular bulge is arranged between the central point of the pattern block and the peripheral edge of the pattern block, the central point of the pattern block is positioned in the annular bulge, and by means of the bionics principle, the surface of the pattern block is concave inwards and a circle of annular bulge is arranged outwards according to the structure of an animal foot/palm, such as a human foot/palm and a elephant sole. When the structure is grounded and pressed, the annular bulge is firstly grounded, the peripheral edge of the pattern block and the central point of the pattern block are not grounded at the moment, a space is reserved for the transverse expansion of rubber, the annular bulge generates transverse expansion when being pressed, not only can the concave area inside the annular bulge be filled, but also the concave area outside the annular bulge can be filled, the edge accumulation effect of the pattern block of the traditional structure and the ground pressure/stress uneven distribution state caused by the edge accumulation effect can be effectively relieved, and therefore the service life of the tire is prolonged.
Drawings
Fig. 1 is a schematic structural view of a block of the present invention.
Figure 2 is a schematic side profile view of the block of figure 1.
Fig. 3 is a schematic structural view of a conventional block in the prior art.
Fig. 4 is a ground contact surface stress distribution state diagram of a general block in the related art.
FIG. 5 is a diagram of an abnormal wear state occurring during the use of a conventional block in the prior art.
FIG. 6 is a diagram showing a ground contact surface stress distribution state of the block of the present invention.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, it should be noted that the embodiments are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and those skilled in the art can make modifications and adaptations of the present invention based on the above-mentioned disclosure.
As shown in FIGS. 1 and 2, a block of a tire has a block surface which is an uneven curved surface and a block peripheral edge 3 which is lower than the inside of the block peripheral edge. The pattern block peripheral edge 3 is lower than the inner side of the pattern block peripheral edge, so that the inner side part of the pattern block peripheral edge is firstly grounded, and the pattern block peripheral edge 3 is not grounded, so that a transverse expansion space is provided, the pattern block edge accumulation effect of the traditional structure and the ground pressure/stress uneven distribution state caused by the accumulation effect can be effectively relieved, and the service life of the tire is prolonged.
At least one circle of annular protrusion 2 is provided on the block-shaped block of the tire, and the annular protrusion 2 makes the block peripheral edge 3 lower than the inner side of the block peripheral edge.
The central point of the block-shaped pattern block is called pattern block central point 1 for short. The center point of the block here is the center of gravity of the planar pattern of the block as shown in fig. 1.
Be equipped with annular arch 2 between decorative pattern piece central point 1 and the decorative pattern piece peripheral border 3, decorative pattern piece central point 1 is located annular arch 2's inside, thereby the decorative pattern piece is when ground connection pressurized, annular arch 2 ground connection earlier, annular arch 2 inside and annular arch 2 outside have not ground connection this moment, the lateral expansion who gives rubber reserves the space, annular arch 2 pressurized produces lateral expansion, both can fill the depressed area that is lower than annular arch 2 to annular arch 2 inside, also can fill the area that is lower than annular arch 2 to annular arch 2 outside, can effectively alleviate the decorative pattern piece limit of traditional structure and pile up the effect and the ground connection pressure/stress uneven distribution state that causes from this, thereby improve tire life.
The block center point 1 may not be located inside the annular protrusion 2.
A circle of annular bulge 2 is arranged between the pattern block central point 1 and the pattern block peripheral edge 3, and the pattern block central point 1 is positioned inside the annular bulge 2. By means of bionics principle, referring to animal foot/palm structure, such as human foot/palm, elephant sole, etc., the surface is shown as an inner concave and a ring of annular bulge is arranged outwards. When the structure is grounded and pressed, the annular bulge 2 is firstly grounded, the peripheral edge 3 of the pattern block, the central point 1 of the pattern block and the adjacent areas of the pattern block are not grounded at the moment, a space is reserved for the lateral expansion of rubber, the annular bulge 2 is pressed to generate the lateral expansion, not only can the concave area inside the annular bulge 2 be filled, but also the area lower than the annular bulge 2 outside the annular bulge 2 can be filled, the edge accumulation effect of the pattern block of the traditional structure and the ground pressure/stress uneven distribution state caused by the edge accumulation effect can be effectively relieved, and the service life of the tire is prolonged.
The surface design of this application decorative pattern piece is for increasing annular arch 2 on current ordinary decorative pattern design basis.
2 circles of annular bulges 2, 3 circles of annular bulges 2, 4 circles of annular bulges 2, 5 circles of annular bulges 2 or more than 5 circles of annular bulges 2 can be arranged between the pattern block central point 1 and the pattern block peripheral edge 3, and the pattern block central point 1 is positioned inside the annular bulges 2.
The annular bulge 2 can be a circular bulge, an elliptical bulge, a square bulge, an irregular bulge or a bulge formed by two circles of irregular curves.
Along the normal direction of the surface of the tire pattern, the position of the highest point of the annular bulge is 0.5-3 mm higher than the central point 1 of the pattern block.
Along the normal direction of the surface of the tire pattern, the highest point position of the annular bulge is 0.5-3 mm higher than the peripheral edge 3 of the pattern block, so that the tire pattern is uniformly worn integrally.
The annular bulge 2 is smoothly connected with the pattern block central point 1 and the pattern block peripheral edge 3 through smooth curved surfaces, so that the surface integrity of the pattern is enhanced, and the processing difficulty of a mold is reduced. The curved surface here includes a special curved surface — a flat surface.
The annular bulge 2 is positioned in an 1/2-3/4 area of the distance from the pattern block central point 1 to the pattern block peripheral edge 3, and the pattern surface stress distribution of the tire in the ground contact process can be fully reduced. For example, the annular bulge 2 can completely occupy 1/2-3/4 areas of the distance from the block center point 7 to the block peripheral edge 3, 1/2-2/7 areas of the distance from the block center point 7 to the block peripheral edge 3, and 3/8-9/14 areas of the distance from the block center point 7 to the block peripheral edge 3.
And (3) experimental verification:
under the same inflation pressure and the same load state (800 kPa inflation pressure and 63000kg load), the stress of the pattern block structure provided by the invention is compared with that of the common pattern block structure, and the pattern block provided by the invention is the same as the common pattern block except that the upper surface structure of the pattern block is different.
As shown in the schematic diagram of FIG. 3, the surface of the conventional block is a flat curved surface.
As shown in fig. 1, the block surface structure of the present invention is: a circle of annular bulge 2 is arranged between the pattern block central point 1 and the pattern block peripheral edge 3, wherein the width of the annular bulge 2 is the same, and the inner and outer contour lines of the annular bulge 2 are respectively parallel to the outer contour line of the whole pattern block where the annular bulge is located, namely the pattern block peripheral edge 3. The annular bulge 2 is provided with an equal-height surface 4 with equal width at the center in the width direction, and the equal-height surface 4 is also annular; the inner side of the equal-height surface 4 is connected with an inner contour line 7 which is smoothly connected with the annular bulge 2 through an inner smooth transition curved surface 5 which is as wide as the equal-height surface 4, the inner side of the equal-height surface 4 is smoothly connected with an outer contour line 8 of the annular bulge 2 through an outer smooth transition curved surface 6 which is as wide as the equal-height surface 4, a pattern block central area 9 is formed inside the annular bulge 2, the pattern block central area 9 is as high as the same height, the outer contour line of the annular bulge 2 is overlapped with the pattern block peripheral edge 3, namely, the annular bulge 2 comprises the inner smooth transition curved surface 5, the equal-height surface 4 and the outer smooth transition curved surface 6.
The block central region 9 of the present application is the same as the arrangement in a normal block, i.e. without modification. As shown in the schematic diagram of fig. 2, the equal-height surface 4 has a width of 25mm, and the equal-height surface 4 is smoothly connected with the block central region 9 and the block peripheral edge 3 through a smooth curved surface, namely an inner smooth transition curved surface 5 and an outer smooth transition curved surface 6, which have the same width as the equal-height surface 4. The height of the equal height surface 4 is 1.5mm higher than the height of the pattern block central area 9 along the normal direction of the tire pattern surface, and the height of the equal height surface 4 is 2.0mm higher than the height of the pattern block peripheral edge 3 along the normal direction of the tire pattern surface. The area of the block center region 9 is 11260mm2The area of the inner smooth transition curved surface 5 is 12737mm2The area of the equal height surface 4 is 17356mm2The area of the external smooth transition curved surface 6 is 21601mm2。
Through a simulation technology, a grounding surface stress distribution state diagram 6 obtained by the pattern block structure can be seen visually, and compared with a grounding surface stress distribution state diagram of a common pattern block structure shown in fig. 4, the dark color in fig. 4 and fig. 6 represents the stress magnitude, the darker color represents the smaller stress, and under the same representation scale, the pattern block structure of the invention has more uniform surface stress distribution and obviously improved edge stress concentration effect.
As a result: compared with the common pattern block structure, the maximum grounding stress of the surface of the pattern block structure is reduced by 50% under the same inflation pressure and the same load state, compared with the common pattern block design in the prior art, the maximum grounding pressure of the pattern block structure can be reduced by 25%, the problems of deformed and worn pattern blocks, cut edges of the pattern blocks and rapid wear of the pattern blocks in the use process of the tire can be effectively relieved, and therefore the service life of the tire is prolonged.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A block-shaped pattern block of a tire is characterized in that: the surface of the pattern block is an uneven curved surface, and the peripheral edge of the pattern block is lower than the inner side of the peripheral edge of the pattern block.
2. The block of a tire according to claim 1, wherein: at least one circle of annular bulge is arranged on the block-shaped pattern block of the tire, and the annular bulge enables the peripheral edge of the pattern block to be lower than the inner side of the peripheral edge of the pattern block.
3. The block of a tire according to claim 2, wherein: an annular bulge is arranged between the central point of the pattern block and the edge of the periphery of the pattern block, and the central point of the pattern block is positioned inside the annular bulge.
4. The block of a tire according to claim 3, wherein: the inner and outer contour lines of the annular bulge are respectively parallel to the outer contour line of the whole pattern block where the annular bulge is located.
5. The block of a tire according to claim 3, wherein: a circle of annular bulge is arranged between the central point of the pattern block and the edge of the periphery of the pattern block, and the central point of the pattern block is positioned inside the annular bulge.
6. The block of a tire according to claim 3, wherein: at least two rings of annular bulges are arranged between the central point of the pattern block and the peripheral edge of the pattern block, and the central point of the pattern block is positioned in the annular bulges.
7. The block of a tire according to any one of claims 2 to 6, wherein: along the normal direction of the surface of the tire pattern, the position of the highest point of the annular bulge is 0.5-3 mm larger than the central point of the pattern block.
8. The block of a tire according to any one of claims 2 to 6, wherein: along the normal direction of the surface of the tire pattern, the position of the highest point of the annular bulge is 0.5-3 mm higher than the peripheral edge of the pattern block.
9. The block of a tire according to any one of claims 3 to 6, wherein: the annular bulge is smoothly connected with the central point of the pattern block and the peripheral edge of the pattern block through smooth curved surfaces respectively.
10. The block of a tire according to any one of claims 3 to 6, wherein: the annular bulge is located in 1/2-3/4 areas of the distance from the center point of the pattern block to the edge of the pattern block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198634.4A CN112109500A (en) | 2020-10-31 | 2020-10-31 | Block-shaped pattern block of tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198634.4A CN112109500A (en) | 2020-10-31 | 2020-10-31 | Block-shaped pattern block of tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112109500A true CN112109500A (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011198634.4A Pending CN112109500A (en) | 2020-10-31 | 2020-10-31 | Block-shaped pattern block of tire |
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| Country | Link |
|---|---|
| CN (1) | CN112109500A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146022A (en) * | 2001-11-13 | 2003-05-21 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2003182311A (en) * | 2001-12-21 | 2003-07-03 | Bridgestone Corp | Pneumatic tire |
| CN202896195U (en) * | 2012-10-10 | 2013-04-24 | 厦门正新橡胶工业有限公司 | Pneumatic tyre for all-terrain vehicle |
| CN103358822A (en) * | 2012-04-09 | 2013-10-23 | 住友橡胶工业株式会社 | Pneumatic tire for running on rough terrain |
| CN214874035U (en) * | 2020-10-31 | 2021-11-26 | 风神轮胎股份有限公司 | Block-shaped pattern block of tire |
-
2020
- 2020-10-31 CN CN202011198634.4A patent/CN112109500A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146022A (en) * | 2001-11-13 | 2003-05-21 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2003182311A (en) * | 2001-12-21 | 2003-07-03 | Bridgestone Corp | Pneumatic tire |
| CN103358822A (en) * | 2012-04-09 | 2013-10-23 | 住友橡胶工业株式会社 | Pneumatic tire for running on rough terrain |
| CN202896195U (en) * | 2012-10-10 | 2013-04-24 | 厦门正新橡胶工业有限公司 | Pneumatic tyre for all-terrain vehicle |
| CN214874035U (en) * | 2020-10-31 | 2021-11-26 | 风神轮胎股份有限公司 | Block-shaped pattern block of tire |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhiping Inventor after: Zhang Lingxin Inventor after: Zhang Wentao Inventor after: Song Chaoxing Inventor after: Wang Caihong Inventor after: Zhang Jing Inventor after: Liang Mengzhu Inventor before: Wang Zhiping Inventor before: He Yue Inventor before: Zhu Haitao Inventor before: Zhang Wentao Inventor before: Song Chaoxing Inventor before: Wang Caihong Inventor before: Zhang Jing |
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