Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

tire

A tire and tire circumferential technology, applied to tire parts, tire tread/tread pattern, vehicle parts, etc., can solve the problems of land wear and other problems, and achieve the effect of reducing sliding amount and excellent partial wear resistance

Active Publication Date: 2021-05-07
SUMITOMO RUBBER IND LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such sliding of the land portion causes wear of the land 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

Embodiment

[0088] Prototyped according to the specifications in Table 1 with figure 1 The basic tread pattern is a pneumatic tire of size 255 / 55R18. As a comparative example, a tire in which the second intersection point and the third intersection point were at the same position in the tire circumferential direction was trial-manufactured. The partial wear resistance and wet road performance of each test tire were tested. Common specifications and test methods for each test tire are as follows.

[0089] Rim: 18×8.0J

[0090] Tire internal pressure: 240kPa

[0091]

[0092] The wear energy of each shoulder land portion was measured using a wear energy measuring device. The results are represented by an index with the wear energy of the comparative example being 100, and the smaller the value, the smaller the wear energy and the better the partial wear resistance.

[0093]

[0094] The generation speed of the slipping phenomenon when each test tire was run on a drum surface with a...

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

The invention provides a tire which not only maintains wet road performance but also has excellent partial wear resistance. The tire has a tread portion (2) specifying a mounting direction to a vehicle. The first bezel (16a) and the second bezel (16b) of the outer shoulder lateral groove (16) provided on the outer shoulder land portion (10) respectively meet the outer tread end (To) at a first intersection point (21 ) and the second intersection point (22) intersect. The third bezel (17a) and the fourth bezel (17b) of the inner shoulder lateral groove (17) provided on the inner shoulder land portion are at the third intersection (23) and the third intersection (23) and the fourth bezel respectively with the inner tread end (Ti). The four intersections (24) intersect. The first intersection point (21) and the second intersection point (22) are respectively provided at different positions in the tire circumferential direction from the third intersection point (23) and the fourth intersection point (24).

Description

technical field [0001] The present invention relates to a tire having excellent uneven wear resistance. Background technique [0002] For example, Patent Document 1 below proposes a tire having a tread portion in which a direction of mounting on a vehicle is specified. The tire has an outer shoulder land portion positioned outside the vehicle when mounted on the vehicle, and an inner shoulder land portion positioned inside the vehicle when mounted on the vehicle. A plurality of outer shoulder lateral grooves extending inward in the tire axial direction from the tread end are provided on the outer shoulder land portion. A plurality of inner shoulder lateral grooves extending inward in the tire axial direction from the tread end are provided on the inner shoulder land portion. The above-mentioned shoulder lateral grooves allow water in the ground contact surface to drain toward the tread end side, thereby improving wet road performance. [0003] In the above tire, the bead ...

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): B60C11/12B60C11/03
CPCB60C11/0302B60C11/0304B60C11/0332B60C11/1204B60C11/1236B60C11/125B60C11/1272B60C11/1281B60C2011/0334B60C2011/0337B60C2011/0353
Inventor 长濑博毅
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com