CN203142297U - Low-noise pattern block - Google Patents
Low-noise pattern block Download PDFInfo
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- CN203142297U CN203142297U CN 201320083818 CN201320083818U CN203142297U CN 203142297 U CN203142297 U CN 203142297U CN 201320083818 CN201320083818 CN 201320083818 CN 201320083818 U CN201320083818 U CN 201320083818U CN 203142297 U CN203142297 U CN 203142297U
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- pattern block
- pattern
- groove
- noise
- line
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Abstract
The utility model relates to a low-noise pattern block which comprises a tyre tread, wherein a plurality of pattern grooves and a plurality of pattern blocks enclosed by the pattern grooves are distributed in the tyre tread, an edge part is respectively arranged between the surface of any one pattern block and the side wall surface of the pattern groove adjacent to the pattern block, and the edge part the trend of which have an included angle with the circumferential direction centre line of a tyre is of a chamber structure, wherein the included angle is more than or equal to 20 DEG and less than or equal to 90 DEG. In the section of the chamfer structure, the edge of the chamfer is an arc line, or straight line or a zigzag line segment consisting of more than two straight line segments which are connected in sequence, and starting points and ending points of the arc line, or straight line or zigzag line segment are respectively positioned in the surfaces of the pattern blocks and the side wall surfaces of the pattern grooves. According to the low-noise pattern block, the impact noise generated at the edges of the pattern blocks is effectively reduced, the area of the pattern blocks is decreased, openings of the pattern grooves are enlarged, the friction noise of the pattern blocks can be reduced, and the air flowing noise in the pattern grooves is reduced.
Description
Technical field:
The utility model relates to the tire for vehicles field, relates in particular to the cros-rib tread piece designing technique of surface of tyre, particularly reduces the bump of pattern block and the technology of frictional noise, and concrete is a kind of low noise pattern block.
Background technology:
Squeal of tire mainly is made up of groove noise (factors such as air pumping, sympathetic response and turbulent flow cause), pattern block noise (factors such as bump and friction cause) and vibration noise (the various vibrations of tire cause).Surface of tyre (being tread) has many positions that fall in to be called as groove, and the position that all the other do not fall in just is called as pattern block by the position that groove surrounds.Be that the experiment of squeal of tire mechanism or squeal of tire all shows, groove can produce very big air hydrodynamic noise, if the angle of the sharp-pointed edge of pattern block and the circumferential line of centers of tire more greatly then can produce impact noise, the surface of pattern block can produce frictional noise.Therefore, by reducing the quantity of groove, can reduce the noise that is produced by groove, groove quantity has also reduced the fast quantity of decorative pattern when reducing, therefore can reduce simultaneously the noise that bump road surface, pattern block edge produces, but for the in-use performance (driving, braking etc.) that guarantees tire tread, tire tread must will have the groove of sufficient amount, so can not reduce squeal of tire by the method that reduces groove quantity.In the prior art, mainly reduce the groove noise by shape, size (length and angle etc.) and the factors such as (distributions) of arrangement of adjusting groove, and the structure and material by adjusting tire and reduce the tire vibration noise with the coupling of vehicle, but the noise that effective means reduces pattern block is not proposed as yet.
The utility model content:
The purpose of this utility model is to provide a kind of low noise pattern block, and described this low noise pattern block will solve the technical matters that can't reduce the noise that pattern block produces in the tread surface in the prior art.
This low noise pattern block of the present utility model, comprise a tread surface, the a plurality of pattern blocks that are distributed with a plurality of grooves in the described tread surface and surrounded by described groove, wherein, all include rib portion between the side wall surface of the surface of any one described pattern block and adjacent groove separately, wherein the trend rib portions that are greater than or equal to 20 degree with the angle of the circumferential line of centers of tire and are less than or equal to 90 degree are set to chamfering structure.
Further, in the section of described chamfering structure, the edge of chamfering is camber line or straight line or the tortuous line segment that is linked in sequence and constituted by plural linear portion, and the starting point of described camber line or straight line or tortuous line segment and terminal point lay respectively in the side wall surface of the surface of pattern block and groove.
Further, described camber line is circular arc, the radius of described circular arc less than the width of its corresponding groove in tread surface 1/3rd and less than its corresponding groove extreme depth 1/5th and less than 1/3rd of the width of its corresponding pattern block in tread surface.
Further, described a plurality of groove includes a plurality of circumferential pattern ditches and a plurality of cross groove.
Further, trend or angle parallel with the circumferential line of centers of tire also is set to chamfering structure less than the 20 rib portions of spending.
Further, in the section of described chamfering structure, the edge of chamfering is linked in sequence when constituting by plural linear portion, and any one described linear portion is all isometric with an adjacent linear portion.
Principle of work of the present utility model is: the utility model has changed traditional pattern block surface and the direct connection mode of groove side wall surface, means by passivation pattern block edge, connect pattern block surface and groove side wall surface, effectively reduced the impact noise that the pattern block edge produces, both reduced simultaneously the area of pattern block, also enlarged the opening of groove, thus the frictional noise of pattern block also can be reduced, and reduce the air hydrodynamic noise in the groove.By adjusting the radius of circular arc, perhaps substitute arc surface with one or more plane, can reduce noise and keep finding balance between the decorative pattern propulsive effort.
The utility model and prior art are compared, and its effect is actively with tangible.The rib portion of the utility model between tire tread block and adjacent groove arranges chamfering, effectively reduced the impact noise that the pattern block edge produces, both reduced simultaneously the area of pattern block, enlarged the opening of groove again, can reduce the frictional noise of pattern block, and reduce the air hydrodynamic noise in the groove.
Description of drawings:
Fig. 1 is the scheme drawing of a kind of low noise pattern block of the present utility model.
Fig. 2 is the scheme drawing of the rib portion section among first embodiment of a kind of low noise pattern block of the present utility model.
Fig. 3 is the scheme drawing of the rib portion section among second embodiment of a kind of low noise pattern block of the present utility model.
Fig. 4 is the scheme drawing of the rib portion section among the 3rd embodiment of a kind of low noise pattern block of the present utility model.
Fig. 5 is rib portion section among the 4th embodiment of a kind of low noise pattern block of the present utility model and local enlarged diagram wherein.
The specific embodiment:
As shown in Figure 1, a kind of low noise pattern block of the present utility model, comprise a tread surface, the a plurality of pattern blocks 1 that are distributed with a plurality of grooves 2 in the described tread surface and surrounded by described groove 2, wherein, all include rib portion between the side wall surface of the surface of any one described pattern block 1 and adjacent groove 2 separately, wherein the trend rib portions that are greater than or equal to 20 degree with the angle of the circumferential line of centers of tire and are less than or equal to 90 degree are set to chamfering structure 3.
Further, described a plurality of groove 2 includes a plurality of circumferential pattern ditches and a plurality of cross groove.
Further, trend or angle parallel with the circumferential line of centers of tire also is set to chamfering structure 3 less than the 20 rib portions of spending.
Embodiment 1:
As shown in Figure 2, in the section of described chamfering structure 3, the edge of chamfering is camber line, and the starting point of described camber line and terminal point lay respectively in the side wall surface of the surface of pattern block 1 and groove 2.
Further, described camber line is circular arc, the radius of described circular arc less than the width of its corresponding groove 2 in tread surface 1/3rd and less than its corresponding groove 2 extreme depths 1/5th and less than 1/3rd of the width of its corresponding pattern block 1 in tread surface.
Embodiment 2:
As shown in Figure 3, in the section of described chamfering structure 3, the edge of chamfering is straight line 4, and the starting point of described straight line 4 and terminal point lay respectively in the side wall surface of the surface of pattern block 1 and groove 2.
Embodiment 3:
As shown in Figure 4, in the section of described chamfering structure 3, the edge of chamfering is the tortuous line segment that is linked in sequence and is constituted by linear portion 5 and linear portion 6, and the starting point of described tortuous line segment and terminal point lay respectively in the side wall surface of the surface of pattern block 1 and groove 2.
Further, linear portion 5 and linear portion 6 linear portions are isometric.
Further, linear portion 5 all is positioned on the same circular arc with the point of connection of linear portion 6, starting point and the terminal point of tortuous line segment.
Embodiment 4:
As shown in Figure 5, in the section of described chamfering structure 3, the edge of chamfering is the tortuous line segment that is linked in sequence and is constituted by linear portion 7, linear portion 8 and linear portion 9, and the starting point of described tortuous line segment and terminal point lay respectively in the side wall surface of the surface of pattern block 1 and groove 2.
Further, linear portion 7, linear portion 8 and linear portion 9 are isometric.
Further, the point of connection between the starting point of tortuous line segment, terminal point and linear portion 7, linear portion 8 and the linear portion 9 all is positioned on the same circular arc.
The principle of work of above embodiment is: the utility model has changed the direct connection mode of traditional pattern block 1 surface and groove 2 side wall surfaces, means by passivation pattern block 1 edge, connect pattern block 1 surface and groove 2 side wall surfaces, effectively reduced the impact noise that pattern block 1 edge produces, both reduced simultaneously the area of pattern block 1, also enlarged the opening of groove 2, thus the frictional noise of pattern block 1 also can be reduced, and reduce the air hydrodynamic noise in the groove 2.By adjusting the radius of circular arc, perhaps substitute arc surface with one or more plane, can reduce noise and keep finding balance between the decorative pattern propulsive effort.
Claims (6)
1. low noise pattern block, comprise a tread surface, the a plurality of pattern blocks that are distributed with a plurality of grooves in the described tread surface and surrounded by described groove, it is characterized in that: all include rib portion between the side wall surface of the surface of any one described pattern block and adjacent groove separately, wherein the trend rib portions that are greater than or equal to 20 degree with the angle of the circumferential line of centers of tire and are less than or equal to 90 degree are set to chamfering structure.
2. a kind of low noise pattern block as claimed in claim 1, it is characterized in that: in the section of described chamfering structure, the edge of chamfering is camber line or straight line or the tortuous line segment that is linked in sequence and constituted by plural linear portion, and the starting point of described camber line or straight line or tortuous line segment and terminal point lay respectively in the side wall surface of the surface of pattern block and groove.
3. a kind of low noise pattern block as claimed in claim 2, it is characterized in that: described camber line is circular arc, the radius of described circular arc less than the width of its corresponding groove in tread surface 1/3rd and less than its corresponding groove extreme depth 1/5th and less than 1/3rd of the width of its corresponding pattern block in tread surface.
4. a kind of low noise pattern block as claimed in claim 1, it is characterized in that: described a plurality of grooves include a plurality of circumferential pattern ditches and a plurality of cross groove.
5. a kind of low noise pattern block as claimed in claim 1 is characterized in that: move towards or angle parallel with the circumferential line of centers of tire and also be set to chamfering structure less than the rib portions of 20 degree.
6. a kind of low noise pattern block as claimed in claim 1, it is characterized in that: in the section of described chamfering structure, the tortuous line segment of the edge of chamfering for being linked in sequence and being constituted by plural linear portion, any one described linear portion is all isometric with an adjacent linear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083818 CN203142297U (en) | 2013-02-25 | 2013-02-25 | Low-noise pattern block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083818 CN203142297U (en) | 2013-02-25 | 2013-02-25 | Low-noise pattern block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203142297U true CN203142297U (en) | 2013-08-21 |
Family
ID=48969849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083818 Expired - Lifetime CN203142297U (en) | 2013-02-25 | 2013-02-25 | Low-noise pattern block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203142297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112320A (en) * | 2013-02-25 | 2013-05-22 | 上海轮胎橡胶（集团）股份有限公司轮胎研究所 | Low-noise tread pattern block |
| CN107539034A (en) * | 2016-06-24 | 2018-01-05 | 住友橡胶工业株式会社 | Pneumatic tire |
-
2013
- 2013-02-25 CN CN 201320083818 patent/CN203142297U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112320A (en) * | 2013-02-25 | 2013-05-22 | 上海轮胎橡胶（集团）股份有限公司轮胎研究所 | Low-noise tread pattern block |
| CN103112320B (en) * | 2013-02-25 | 2016-01-06 | 上海轮胎橡胶（集团）股份有限公司轮胎研究所 | Low-noise tread pattern block |
| CN107539034A (en) * | 2016-06-24 | 2018-01-05 | 住友橡胶工业株式会社 | Pneumatic tire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |