Unlock instant, AI-driven research and patent intelligence for your innovation.

tire

A tire and tire circumferential technology, applied in tire measurement, tire parts, tire tread/tread pattern, etc., can solve the problem of enhancing heat dissipation, not improving the cooling effect of the tread portion, and difficult to suppress the tire on the central part of the tread Facial temperature rise and other problems, to achieve the effect of improving the cooling effect and enhancing the heat dissipation

Active Publication Date: 2020-01-07
BRIDGESTONE CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in a tire in which a plurality of blocks are provided on both sides of a circumferential groove in the tread center portion, the tire width direction of the plurality of blocks is greater than that of the circumferential groove on the tread center portion. Enhanced heat dissipation may sometimes occur in the outer circumferential grooves
In this case, the cooling effect of the tread portion provided by the circumferential grooves in the tread center portion cannot be enhanced
Therefore, it is difficult to suppress the temperature rise of the tread portion on the tread center portion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • tire
  • tire
  • tire

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0033] figure 1 is a plan view showing the tread pattern of the tire 1 of the first embodiment, and schematically shows a part of the tread portion 2 in the tire circumferential direction S. FIG.

[0034] Note that the tire 1 is a tire specifying the rotation direction during the forward motion of the vehicle, and the tire rotates in the tire rotation direction R during the forward motion of the vehicle. The tire rotation direction R is designated corresponding to the tread pattern of the tire 1 . The tire 1 is mounted on the vehicle so as to match the direction of rotation R of the tire. In addition, the tread center portion 3 of the tire 1 is the center portion of the tread portion 2 in the tire width direction K, and the tire equatorial plane is located on the tread center portion 3 . The shoulder portion 4 of the tire 1 is located on the outer side in the tire width direction K of the tread portion 2 .

[0035] As shown, the tire 1 includes a plurality of circumferentia...

no. 2 approach

[0064] Figure 7 is a plan view showing the tread pattern of the tire 5 of the second embodiment, and is similar to figure 1 A part of the tread portion 2 in the tire circumferential direction S is schematically shown. Figure 8 is showing Figure 7 A plan view of a portion of and is shown in the Figure 7 A part between the two second circumferential grooves 12 in a state rotated 90° clockwise.

[0065] The tire 5 of the second embodiment is an example in which a part of the tire 1 of the first embodiment is changed and an effect similar to that of the tire 1 is produced. In the tire 5, the same names as in the tire 1 are given to the same configuration as the tire 1, and a detailed description of each configuration will be omitted. Also, in the following description, descriptions of elements that are the same as those already described will be omitted.

[0066] As shown, the tire 5 includes in the tread portion 2 one circumferential groove 11, two second circumferential...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In order to improve the heat dissipation of the circumferential grooves, and thereby improve the cooling effect on the tread portion provided by the circumferential grooves, the blocks (31) of the tire each have: a first wall surface (32) extending from the lateral grooves (14) Formed toward the upstream side (G) of the air flow from the position where the first circumferential groove (11) opens; the second wall surface (33), which extends from the lateral groove (14) toward the second circumferential groove ( 12) An open position is formed toward the upstream side (G) of air flow; and a block corner (35) is formed at a position where the lateral groove (14) opens toward the second circumferential groove (12). An imaginary surface (37) protruding from the second wall surface (33) of the block (31) at the upstream side (G) intersects the block corner (35) of the block (31) at the downstream side (H) Or pass through a position in the second circumferential groove (12) away from the block corner (35) in the width direction (K) of the tire. In the first wall surface (32), the width (W) of the first circumferential groove (11) gradually increases toward the downstream side (H) of the air flow.

Description

technical field [0001] The present invention relates to a tire provided with a plurality of blocks on a tread portion. Background technique [0002] Generally, blocks having a plurality of blocks are formed on the tread portion of various tires (for example, heavy-duty tires). During running of a vehicle on which such a tire is mounted, strain is generated in the tread portion of the tire due to deformation of members in the tread portion. In addition, since the tread portion generates heat due to the viscoelasticity of the rubber, the temperature of the tread portion rises. The strain and temperature of the tread portion are main factors affecting the durability of the tread portion, and in order to improve the durability of the tread portion, it is necessary to cope with the strain and temperature rise generated in the tread portion. [0003] To cope with this, in conventional tires, the generation of strain in the tread portion is suppressed mainly by incorporating a re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/13B60C11/03
CPCB60C11/0306B60C11/0302B60C2011/0353B60C2011/0346B60C2011/0358B60C23/19B60C11/0309B60C11/0327B60C2011/0341
Inventor 松永翠山口正志
Owner BRIDGESTONE CORP