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

Pneumatic tyre

A technology for pneumatic tires and tires, applied in tire parts, tire treads/tread patterns, transportation and packaging, etc., to achieve increased wear resistance, high tire circumferential rigidity, improved handling stability, and wear resistance. performance effect

Active Publication Date: 2014-12-03
SUMITOMO RUBBER IND LTD
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, such pneumatic tires have room for improvement in terms of wear resistance.

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
  • Pneumatic tyre
  • Pneumatic tyre
  • Pneumatic tyre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0086] Based on the specifications in Table 1 the pair has figure 1 The basic pattern size of the pneumatic tire is 195 / 65R15 for trial production. As a comparative example, for the Figure 7 Trial production of pneumatic tires with the basic pattern. And test the handling stability performance, wet road handling performance, drainage performance and wear resistance performance of these test tires on dry road. Common specifications and test methods for each tire are as follows.

[0087] Mounting rim: 15×6.5J

[0088] Tire internal pressure: 230kPa

[0089] Test vehicle: front wheel drive vehicle, displacement 2000cc

[0090] Tire installation position: all wheels

[0091]

[0092] The driver's senses were used to evaluate the handling and stability performance of the test vehicle when it was running on a test route consisting of a dry asphalt road. The results are represented by the comparative example 1 as 100 evaluation points, and the larger the numerical value, th...

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 pneumatic tyre which is capable of maintaining operation stability and wet road performance while on a dry road and improving wear-resistant performance. A central land part (5), middle land parts (6) and tyre shoulder land parts (7) are marked out by arranging tyre shoulder main channels (3) and central main channels (4) on a tyre surface part (2) of the pneumatic tyre. The width W2 of the middle land part (6) is larger than the width of the central land part (5). The width W3 of the tyre shoulder land part (7) is larger than the width W2 of the middle land part (6). The central land part (5) serves as a rib. Each middle land part (6) is divided into a first middle land part (6A) and a second middle land part (6B) by a middle thin channel (21). Each middle land part (6) is provided with a plurality of middle cross channels (22). Each tyre shoulder land part (7) is provided with a plurality of tyre shoulder cross channels (31). The intervals among the tyre shoulder cross channels (31) are smaller than the intervals among the middle cross channels (22).

Description

technical field [0001] The present invention relates to a pneumatic tire that maintains handling stability on a dry road surface and wet road performance and improves wear resistance. Background technique [0002] In recent years, as the performance of vehicles has increased, pneumatic tires excellent in handling stability on dry roads and wet road performance have been demanded. [0003] Patent Document 1 below proposes a pneumatic tire in which the circumferential rigidity of each land portion in the center region and the shoulder region is improved. The purpose of this pneumatic tire is to improve the steering response performance, especially the steering stability performance on a dry road surface. [0004] However, such pneumatic tires have room for improvement in terms of wear resistance. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2009-35130. Contents of the invention [0006] The present invention is proposed in view of the above-mentioned actual s...

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
IPC IPC(8): B60C11/12
Inventor 末吉裕介
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